From a7232fe4d0e0598ae335afd516626e43d30cb5e6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= Date: Wed, 24 Feb 2021 14:47:06 +0100 Subject: [PATCH 01/21] deps: update V8 to 8.9.255.19 --- deps/v8/.github/mistaken-pull-closer.yml | 13 + deps/v8/.gitignore | 3 +- deps/v8/AUTHORS | 3 +- deps/v8/BUILD.gn | 244 ++- deps/v8/DEPS | 50 +- deps/v8/MIPS_OWNERS | 1 + deps/v8/WATCHLISTS | 9 + deps/v8/build_overrides/build.gni | 3 - deps/v8/gni/v8.gni | 2 + deps/v8/include/DEPS | 3 + deps/v8/include/cppgc/allocation.h | 29 +- deps/v8/include/cppgc/common.h | 6 +- deps/v8/include/cppgc/default-platform.h | 22 +- deps/v8/include/cppgc/heap-consistency.h | 137 ++ deps/v8/include/cppgc/heap.h | 56 + .../v8/include/cppgc/internal/api-constants.h | 2 +- .../include/cppgc/internal/pointer-policies.h | 12 +- .../v8/include/cppgc/internal/write-barrier.h | 246 ++- deps/v8/include/cppgc/platform.h | 8 + deps/v8/include/cppgc/prefinalizer.h | 2 +- deps/v8/include/cppgc/type-traits.h | 70 +- 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deps/v8/src/objects/object-list-macros.h | 18 +- deps/v8/src/objects/object-macros-undef.h | 22 + deps/v8/src/objects/object-macros.h | 41 +- .../objects/objects-body-descriptors-inl.h | 91 +- deps/v8/src/objects/objects-definitions.h | 12 +- deps/v8/src/objects/objects-inl.h | 20 +- deps/v8/src/objects/objects.cc | 180 +- deps/v8/src/objects/objects.h | 1 - deps/v8/src/objects/ordered-hash-table-inl.h | 17 +- deps/v8/src/objects/ordered-hash-table.cc | 132 +- deps/v8/src/objects/ordered-hash-table.h | 57 +- deps/v8/src/objects/ordered-hash-table.tq | 5 +- .../src/objects/osr-optimized-code-cache.cc | 10 +- deps/v8/src/objects/property-array-inl.h | 2 +- deps/v8/src/objects/property-cell-inl.h | 1 + deps/v8/src/objects/property-cell.h | 21 +- deps/v8/src/objects/property-details.h | 50 +- deps/v8/src/objects/property.cc | 8 +- deps/v8/src/objects/scope-info.cc | 77 +- deps/v8/src/objects/scope-info.h | 6 + deps/v8/src/objects/scope-info.tq | 3 +- 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deps/v8/src/objects/transitions.cc | 20 +- deps/v8/src/objects/transitions.h | 10 +- deps/v8/src/objects/type-hints.cc | 2 - deps/v8/src/objects/type-hints.h | 1 - deps/v8/src/objects/value-serializer.cc | 35 +- deps/v8/src/parsing/expression-scope.h | 33 +- deps/v8/src/parsing/func-name-inferrer.h | 9 +- deps/v8/src/parsing/import-assertions.cc | 18 + deps/v8/src/parsing/import-assertions.h | 32 + deps/v8/src/parsing/literal-buffer.cc | 2 +- deps/v8/src/parsing/literal-buffer.h | 5 +- deps/v8/src/parsing/parse-info.cc | 18 +- deps/v8/src/parsing/parse-info.h | 10 +- deps/v8/src/parsing/parser-base.h | 103 +- deps/v8/src/parsing/parser.cc | 5 +- deps/v8/src/parsing/parser.h | 15 +- .../pending-compilation-error-handler.h | 7 +- deps/v8/src/parsing/preparse-data-impl.h | 15 +- deps/v8/src/parsing/preparse-data.cc | 5 +- deps/v8/src/parsing/preparse-data.h | 16 +- deps/v8/src/parsing/preparser.h | 17 +- deps/v8/src/parsing/rewriter.cc | 4 +- .../src/parsing/scanner-character-streams.cc | 28 +- deps/v8/src/parsing/scanner.cc | 8 +- deps/v8/src/parsing/scanner.h | 6 +- deps/v8/src/profiler/allocation-tracker.cc | 4 +- deps/v8/src/profiler/allocation-tracker.h | 12 +- deps/v8/src/profiler/circular-queue.h | 4 +- deps/v8/src/profiler/cpu-profiler.cc | 26 +- deps/v8/src/profiler/cpu-profiler.h | 24 +- deps/v8/src/profiler/heap-profiler.cc | 2 +- deps/v8/src/profiler/heap-profiler.h | 4 +- .../src/profiler/heap-snapshot-generator.cc | 35 +- .../v8/src/profiler/heap-snapshot-generator.h | 26 +- deps/v8/src/profiler/profile-generator.cc | 80 +- deps/v8/src/profiler/profile-generator.h | 61 +- deps/v8/src/profiler/profiler-listener.cc | 35 +- deps/v8/src/profiler/profiler-listener.h | 10 +- .../v8/src/profiler/sampling-heap-profiler.cc | 4 +- deps/v8/src/profiler/sampling-heap-profiler.h | 17 +- deps/v8/src/profiler/strings-storage.cc | 29 +- deps/v8/src/profiler/strings-storage.h | 13 +- deps/v8/src/profiler/symbolizer.h | 4 +- deps/v8/src/profiler/tick-sample.cc | 25 +- deps/v8/src/profiler/tick-sample.h | 8 + deps/v8/src/profiler/tracing-cpu-profiler.h | 4 +- .../arm64/regexp-macro-assembler-arm64.cc | 63 +- .../arm64/regexp-macro-assembler-arm64.h | 17 +- .../experimental/experimental-interpreter.cc | 19 +- .../src/regexp/experimental/experimental.cc | 13 +- deps/v8/src/regexp/regexp-ast.cc | 4 +- deps/v8/src/regexp/regexp-ast.h | 2 +- .../v8/src/regexp/regexp-bytecode-peephole.cc | 3 +- deps/v8/src/regexp/regexp-bytecodes.cc | 7 +- deps/v8/src/regexp/regexp-compiler-tonode.cc | 14 +- deps/v8/src/regexp/regexp-compiler.cc | 21 +- deps/v8/src/regexp/regexp-interpreter.cc | 20 +- deps/v8/src/regexp/regexp-macro-assembler.cc | 45 +- deps/v8/src/regexp/regexp-parser.cc | 4 +- deps/v8/src/regexp/regexp-parser.h | 2 +- deps/v8/src/regexp/regexp-stack.h | 3 +- deps/v8/src/regexp/regexp.cc | 22 +- .../s390/regexp-macro-assembler-s390.cc | 462 ++--- deps/v8/src/roots/roots.h | 9 +- deps/v8/src/runtime/runtime-classes.cc | 123 +- deps/v8/src/runtime/runtime-compiler.cc | 108 +- deps/v8/src/runtime/runtime-debug.cc | 105 +- deps/v8/src/runtime/runtime-generator.cc | 6 +- deps/v8/src/runtime/runtime-internal.cc | 2 +- deps/v8/src/runtime/runtime-literals.cc | 34 +- deps/v8/src/runtime/runtime-object.cc | 84 +- deps/v8/src/runtime/runtime-promise.cc | 2 - deps/v8/src/runtime/runtime-regexp.cc | 8 +- deps/v8/src/runtime/runtime-scopes.cc | 32 +- deps/v8/src/runtime/runtime-strings.cc | 45 +- deps/v8/src/runtime/runtime-test.cc | 74 +- deps/v8/src/runtime/runtime-typedarray.cc | 2 +- deps/v8/src/runtime/runtime-wasm.cc | 59 +- deps/v8/src/runtime/runtime.cc | 9 +- deps/v8/src/runtime/runtime.h | 22 +- deps/v8/src/snapshot/code-serializer.cc | 13 +- deps/v8/src/snapshot/code-serializer.h | 2 +- deps/v8/src/snapshot/context-serializer.cc | 2 +- deps/v8/src/snapshot/deserializer.cc | 19 +- deps/v8/src/snapshot/deserializer.h | 6 +- .../snapshot/embedded/embedded-file-writer.h | 3 +- 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deps/v8/src/utils/memcopy.h | 14 +- deps/v8/src/utils/scoped-list.h | 2 +- deps/v8/src/utils/utils-inl.h | 2 +- deps/v8/src/utils/utils.cc | 8 +- deps/v8/src/utils/utils.h | 70 +- deps/v8/src/utils/vector.h | 7 +- .../wasm/baseline/arm/liftoff-assembler-arm.h | 244 ++- .../baseline/arm64/liftoff-assembler-arm64.h | 259 ++- .../baseline/ia32/liftoff-assembler-ia32.h | 309 ++- .../wasm/baseline/liftoff-assembler-defs.h | 63 +- .../v8/src/wasm/baseline/liftoff-assembler.cc | 83 +- deps/v8/src/wasm/baseline/liftoff-assembler.h | 224 ++- deps/v8/src/wasm/baseline/liftoff-compiler.cc | 1313 +++++++++---- deps/v8/src/wasm/baseline/liftoff-register.h | 3 + .../baseline/mips/liftoff-assembler-mips.h | 242 ++- .../mips64/liftoff-assembler-mips64.h | 219 ++- .../wasm/baseline/ppc/liftoff-assembler-ppc.h | 163 +- .../baseline/s390/liftoff-assembler-s390.h | 364 +++- .../wasm/baseline/x64/liftoff-assembler-x64.h | 369 +++- deps/v8/src/wasm/c-api.cc | 41 +- deps/v8/src/wasm/code-space-access.h | 2 +- deps/v8/src/wasm/compilation-environment.h | 3 + deps/v8/src/wasm/function-body-decoder-impl.h | 1023 +++++----- deps/v8/src/wasm/function-body-decoder.cc | 20 +- deps/v8/src/wasm/function-body-decoder.h | 7 +- deps/v8/src/wasm/graph-builder-interface.cc | 266 ++- deps/v8/src/wasm/jump-table-assembler.cc | 4 +- deps/v8/src/wasm/local-decl-encoder.cc | 3 +- deps/v8/src/wasm/module-compiler.cc | 249 +-- deps/v8/src/wasm/module-compiler.h | 2 +- deps/v8/src/wasm/module-decoder.cc | 105 +- deps/v8/src/wasm/module-decoder.h | 5 +- deps/v8/src/wasm/module-instantiate.cc | 48 +- deps/v8/src/wasm/module-instantiate.h | 4 + deps/v8/src/wasm/simd-shuffle.cc | 19 + deps/v8/src/wasm/simd-shuffle.h | 6 + deps/v8/src/wasm/streaming-decoder.cc | 26 +- deps/v8/src/wasm/streaming-decoder.h | 1 + deps/v8/src/wasm/value-type.h | 34 +- deps/v8/src/wasm/wasm-code-manager.cc | 80 +- deps/v8/src/wasm/wasm-code-manager.h | 27 +- deps/v8/src/wasm/wasm-constants.h | 18 +- deps/v8/src/wasm/wasm-debug-evaluate.cc | 446 ----- deps/v8/src/wasm/wasm-debug-evaluate.h | 24 - deps/v8/src/wasm/wasm-debug.cc | 263 +-- deps/v8/src/wasm/wasm-debug.h | 18 +- deps/v8/src/wasm/wasm-engine.cc | 244 +-- deps/v8/src/wasm/wasm-engine.h | 14 +- deps/v8/src/wasm/wasm-external-refs.cc | 8 +- deps/v8/src/wasm/wasm-feature-flags.h | 20 +- deps/v8/src/wasm/wasm-import-wrapper-cache.h | 2 +- deps/v8/src/wasm/wasm-js.cc | 848 +-------- deps/v8/src/wasm/wasm-js.h | 3 - deps/v8/src/wasm/wasm-limits.h | 3 + deps/v8/src/wasm/wasm-module-builder.cc | 3 +- deps/v8/src/wasm/wasm-module-builder.h | 5 +- deps/v8/src/wasm/wasm-module.cc | 12 +- deps/v8/src/wasm/wasm-module.h | 13 +- deps/v8/src/wasm/wasm-objects-inl.h | 15 +- deps/v8/src/wasm/wasm-objects.cc | 73 +- deps/v8/src/wasm/wasm-objects.h | 9 +- deps/v8/src/wasm/wasm-objects.tq | 3 +- deps/v8/src/wasm/wasm-opcodes-inl.h | 9 +- deps/v8/src/wasm/wasm-opcodes.cc | 3 +- deps/v8/src/wasm/wasm-opcodes.h | 159 +- deps/v8/src/wasm/wasm-serialization.cc | 238 ++- deps/v8/src/wasm/wasm-subtyping.cc | 55 +- deps/v8/src/wasm/wasm-subtyping.h | 15 +- deps/v8/src/zone/accounting-allocator.cc | 3 +- deps/v8/src/zone/accounting-allocator.h | 4 +- deps/v8/src/zone/type-stats.cc | 3 +- deps/v8/src/zone/zone-chunk-list.h | 5 +- deps/v8/src/zone/zone-list-inl.h | 3 +- deps/v8/src/zone/zone-list.h | 5 +- deps/v8/src/zone/zone.cc | 2 +- deps/v8/test/benchmarks/benchmarks.status | 4 + deps/v8/test/benchmarks/cpp/cppgc/BUILD.gn | 16 +- deps/v8/test/cctest/BUILD.gn | 12 +- deps/v8/test/cctest/assembler-helper-arm.cc | 4 +- deps/v8/test/cctest/assembler-helper-arm.h | 8 +- deps/v8/test/cctest/cctest.cc | 10 +- deps/v8/test/cctest/cctest.h | 42 +- deps/v8/test/cctest/cctest.status | 39 +- .../compiler/test-basic-block-profiler.cc | 4 +- .../cctest/compiler/test-code-assembler.cc | 60 +- .../test-concurrent-shared-function-info.cc | 199 ++ .../test/cctest/compiler/test-gap-resolver.cc | 1 - deps/v8/test/cctest/compiler/test-linkage.cc | 4 +- .../test/cctest/compiler/test-run-machops.cc | 8 +- deps/v8/test/cctest/heap/heap-utils.cc | 11 +- deps/v8/test/cctest/heap/heap-utils.h | 2 +- deps/v8/test/cctest/heap/test-alloc.cc | 10 +- deps/v8/test/cctest/heap/test-compaction.cc | 2 +- .../cctest/heap/test-concurrent-allocation.cc | 7 +- deps/v8/test/cctest/heap/test-heap.cc | 86 +- .../cctest/heap/test-incremental-marking.cc | 48 +- .../cctest/heap/test-invalidated-slots.cc | 2 +- deps/v8/test/cctest/heap/test-mark-compact.cc | 2 +- .../cctest/heap/test-memory-measurement.cc | 4 +- deps/v8/test/cctest/heap/test-spaces.cc | 6 +- .../bytecode-expectations-printer.cc | 18 +- .../ArrayLiterals.golden | 9 +- .../CallAndSpread.golden | 11 +- .../bytecode_expectations/NewAndSpread.golden | 11 +- .../PrivateAccessorAccess.golden | 1 - .../PrivateAccessorDeclaration.golden | 1 - .../PrivateClassFieldAccess.golden | 1 - .../PrivateMethodAccess.golden | 1 - .../PrivateMethodDeclaration.golden | 1 - .../StaticPrivateMethodAccess.golden | 1 - .../StaticPrivateMethodDeclaration.golden | 1 - .../generate-bytecode-expectations.cc | 13 +- .../interpreter/test-bytecode-generator.cc | 21 +- .../cctest/interpreter/test-interpreter.cc | 12 +- .../interpreter/test-source-positions.cc | 7 +- .../v8/test/cctest/libsampler/test-sampler.cc | 6 +- .../cctest/parsing/test-scanner-streams.cc | 2 +- .../v8/test/cctest/test-accessor-assembler.cc | 2 +- deps/v8/test/cctest/test-accessors.cc | 8 +- deps/v8/test/cctest/test-api-array-buffer.cc | 16 +- deps/v8/test/cctest/test-api-interceptors.cc | 91 +- deps/v8/test/cctest/test-api-stack-traces.cc | 4 +- deps/v8/test/cctest/test-api.cc | 416 ++-- deps/v8/test/cctest/test-assembler-arm.cc | 115 +- deps/v8/test/cctest/test-assembler-arm64.cc | 57 + deps/v8/test/cctest/test-assembler-ia32.cc | 22 +- deps/v8/test/cctest/test-assembler-mips.cc | 78 +- deps/v8/test/cctest/test-assembler-mips64.cc | 78 +- 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diff --git a/deps/v8/.github/mistaken-pull-closer.yml b/deps/v8/.github/mistaken-pull-closer.yml new file mode 100644 index 00000000000000..b78f1f6bfc043c --- /dev/null +++ b/deps/v8/.github/mistaken-pull-closer.yml @@ -0,0 +1,13 @@ +# `true` will close all PRs. +filters: + - true + +# The message to post to the closed PR. +commentBody: | + Thanks for your contribution! Unfortunately, we don't use GitHub pull + requests to manage code contributions to this repository. Instead, please + see https://v8.dev/docs/contribute which provides full instructions on + how to get involved. + +# Whether to add a label to the closed PR. +addLabel: false diff --git a/deps/v8/.gitignore b/deps/v8/.gitignore index 11c7ae61ddaf53..b340100517a5a4 100644 --- a/deps/v8/.gitignore +++ b/deps/v8/.gitignore @@ -23,6 +23,7 @@ *~ .#* .*.sw? +.cache .ccls-cache .clangd .cpplint-cache @@ -60,7 +61,6 @@ /test/wasm-spec-tests/tests.tar.gz /third_party/* !/third_party/antlr4 -!/third_party/binutils !/third_party/inspector_protocol !/third_party/jsoncpp /third_party/jsoncpp/source @@ -78,6 +78,7 @@ !/third_party/v8 !/third_party/wasm-api /tools/clang +/tools/gcmole/bootstrap /tools/gcmole/gcmole-tools /tools/gcmole/gcmole-tools.tar.gz /tools/jsfunfuzz/jsfunfuzz diff --git a/deps/v8/AUTHORS b/deps/v8/AUTHORS index 5dba6abe9b5546..716a23b5bf4058 100644 --- a/deps/v8/AUTHORS +++ b/deps/v8/AUTHORS @@ -28,7 +28,6 @@ IBM Inc. <*@ibm.com> Red Hat Inc. <*@redhat.com> Samsung <*@*.samsung.com> Samsung <*@samsung.com> -Joyent, Inc <*@joyent.com> RT-RK Computer Based System <*@rt-rk.com> Amazon, Inc <*@amazon.com> ST Microelectronics <*@st.com> @@ -61,7 +60,6 @@ Andreas Anyuru Andrew Paprocki Andrei Kashcha Anna Henningsen -Antoine du Hamel Anton Bikineev Bangfu Tao Daniel Shelton @@ -136,6 +134,7 @@ Kevin Gibbons Kris Selden Kyounga Ra Loo Rong Jie +Lu Yahan Luis Reis Luke Zarko Maciej Małecki diff --git a/deps/v8/BUILD.gn b/deps/v8/BUILD.gn index 1dc6c7d5ac51df..f39529a3a953a3 100644 --- a/deps/v8/BUILD.gn +++ b/deps/v8/BUILD.gn @@ -45,6 +45,12 @@ declare_args() { # Sets --DV8_LITE_MODE. v8_enable_lite_mode = false + # Sets -DSYSTEM_INSTRUMENTATION. Enables OS-dependent event tracing + v8_enable_system_instrumentation = false + + # Sets the GUID for the ETW provider + v8_etw_guid = "" + # Sets -DVERIFY_HEAP. v8_enable_verify_heap = "" @@ -113,7 +119,8 @@ declare_args() { v8_disable_arguments_adaptor = v8_current_cpu == "x86" || v8_current_cpu == "x64" || v8_current_cpu == "arm" || v8_current_cpu == "arm64" || - v8_current_cpu == "mipsel" || v8_current_cpu == "mips64el" + v8_current_cpu == "mipsel" || v8_current_cpu == "mips64el" || + v8_current_cpu == "ppc64" || v8_current_cpu == "s390x" # Sets -dOBJECT_PRINT. v8_enable_object_print = "" @@ -422,6 +429,7 @@ config("internal_config") { "//build/config/compiler:wexit_time_destructors", ":internal_config_base", ":v8_header_features", + ":cppgc_header_features", ] if (is_component_build) { @@ -459,17 +467,15 @@ config("libbase_config") { } } +# Standalone cppgc cannot be built within chrome or with perfetto. +assert(!cppgc_is_standalone || !build_with_chromium) +assert(!cppgc_is_standalone || !v8_use_perfetto) + # This config should be applied to code using the cppgc_base. config("cppgc_base_config") { defines = [] - if (cppgc_enable_object_names) { - defines += [ "CPPGC_SUPPORTS_OBJECT_NAMES" ] - } - if (cppgc_enable_caged_heap) { - defines += [ "CPPGC_CAGED_HEAP" ] - } - if (cppgc_enable_young_generation) { - defines += [ "CPPGC_YOUNG_GENERATION" ] + if (cppgc_is_standalone) { + defines += [ "CPPGC_IS_STANDALONE" ] } } @@ -482,7 +488,10 @@ config("libsampler_config") { # itself. config("external_config") { defines = [] - configs = [ ":v8_header_features" ] + configs = [ + ":v8_header_features", + ":cppgc_header_features", + ] if (is_component_build) { defines += [ "USING_V8_SHARED" ] } @@ -531,6 +540,25 @@ config("v8_header_features") { if (v8_disable_arguments_adaptor) { defines += [ "V8_NO_ARGUMENTS_ADAPTOR" ] } + if (v8_use_perfetto) { + defines += [ "V8_USE_PERFETTO" ] + } +} + +config("cppgc_header_features") { + visibility = [ ":*" ] + + defines = [] + + if (cppgc_enable_object_names) { + defines += [ "CPPGC_SUPPORTS_OBJECT_NAMES" ] + } + if (cppgc_enable_caged_heap) { + defines += [ "CPPGC_CAGED_HEAP" ] + } + if (cppgc_enable_young_generation) { + defines += [ "CPPGC_YOUNG_GENERATION" ] + } } # Put defines here that are only used in our internal files and NEVER in @@ -541,7 +569,10 @@ config("features") { defines = [] - configs = [ ":v8_header_features" ] + configs = [ + ":v8_header_features", + ":cppgc_header_features", + ] if (v8_embedder_string != "") { defines += [ "V8_EMBEDDER_STRING=\"$v8_embedder_string\"" ] @@ -646,9 +677,6 @@ config("features") { if (v8_enable_shared_ro_heap) { defines += [ "V8_SHARED_RO_HEAP" ] } - if (v8_use_perfetto) { - defines += [ "V8_USE_PERFETTO" ] - } if (v8_win64_unwinding_info) { defines += [ "V8_WIN64_UNWINDING_INFO" ] } @@ -673,6 +701,12 @@ config("features") { if (v8_dict_mode_prototypes) { defines += [ "V8_DICT_MODE_PROTOTYPES" ] } + if (v8_enable_system_instrumentation) { + defines += [ "V8_ENABLE_SYSTEM_INSTRUMENTATION" ] + } + if (v8_etw_guid != "") { + defines += [ "V8_ETW_GUID=\"$v8_etw_guid\"" ] + } } config("toolchain") { @@ -720,6 +754,7 @@ config("toolchain") { # TODO(v8:10026): Enable this in src/build. if (current_cpu == "arm64") { cflags += [ "-mbranch-protection=standard" ] + asmflags = [ "-mmark-bti-property" ] } } } @@ -811,6 +846,7 @@ config("toolchain") { defines += [ "V8_TARGET_ARCH_PPC" ] } else if (v8_current_cpu == "ppc64") { defines += [ "V8_TARGET_ARCH_PPC64" ] + cflags += [ "-ffp-contract=off" ] } if (host_byteorder == "little") { defines += [ "V8_TARGET_ARCH_PPC_LE" ] @@ -1132,6 +1168,7 @@ action("postmortem-metadata") { torque_files = [ "src/builtins/aggregate-error.tq", + "src/builtins/array-at.tq", "src/builtins/array-copywithin.tq", "src/builtins/array-every.tq", "src/builtins/array-filter.tq", @@ -1171,7 +1208,7 @@ torque_files = [ "src/builtins/function.tq", "src/builtins/growable-fixed-array.tq", "src/builtins/ic-callable.tq", - "src/builtins/ic-dynamic-map-checks.tq", + "src/builtins/ic-dynamic-check-maps.tq", "src/builtins/ic.tq", "src/builtins/internal-coverage.tq", "src/builtins/internal.tq", @@ -1214,6 +1251,7 @@ torque_files = [ "src/builtins/regexp-split.tq", "src/builtins/regexp-test.tq", "src/builtins/regexp.tq", + "src/builtins/string-at.tq", "src/builtins/string-endswith.tq", "src/builtins/string-html.tq", "src/builtins/string-iterator.tq", @@ -1227,6 +1265,7 @@ torque_files = [ "src/builtins/string-trim.tq", "src/builtins/symbol.tq", "src/builtins/torque-internal.tq", + "src/builtins/typed-array-at.tq", "src/builtins/typed-array-createtypedarray.tq", "src/builtins/typed-array-every.tq", "src/builtins/typed-array-entries.tq", @@ -1373,8 +1412,6 @@ template("run_torque") { "$target_gen_dir/torque-generated/exported-macros-assembler.h", "$target_gen_dir/torque-generated/csa-types.h", "$target_gen_dir/torque-generated/instance-types.h", - "$target_gen_dir/torque-generated/runtime-macros.cc", - "$target_gen_dir/torque-generated/runtime-macros.h", "$target_gen_dir/torque-generated/class-forward-declarations.h", ] @@ -1495,7 +1532,6 @@ v8_source_set("torque_generated_definitions") { "$target_gen_dir/torque-generated/class-verifiers.h", "$target_gen_dir/torque-generated/factory.cc", "$target_gen_dir/torque-generated/objects-printer.cc", - "$target_gen_dir/torque-generated/runtime-macros.cc", ] foreach(file, torque_files) { filetq = string_replace(file, ".tq", "-tq") @@ -1961,7 +1997,10 @@ v8_header_set("v8_version") { # can depend upon to get basic v8 types. v8_header_set("v8_headers") { configs = [ ":internal_config" ] - public_configs = [ ":v8_header_features" ] + public_configs = [ + ":v8_header_features", + ":cppgc_header_features", + ] sources = [ "include/v8-cppgc.h", @@ -1982,6 +2021,12 @@ v8_header_set("v8_headers") { deps = [ ":v8_version" ] } +v8_source_set("v8_wrappers") { + configs = [ ":internal_config" ] + + sources = [ "src/base/platform/wrappers.h" ] +} + # This is split out to share basic headers with Torque. v8_header_set("v8_shared_internal_headers") { visibility = [ ":*" ] # Only targets in this file can depend on this. @@ -2495,6 +2540,8 @@ v8_source_set("v8_base_without_compiler") { "src/debug/debug-stack-trace-iterator.h", "src/debug/debug-type-profile.cc", "src/debug/debug-type-profile.h", + "src/debug/debug-wasm-support.cc", + "src/debug/debug-wasm-support.h", "src/debug/debug.cc", "src/debug/debug.h", "src/debug/interface-types.h", @@ -2555,6 +2602,7 @@ v8_source_set("v8_base_without_compiler") { "src/execution/protectors.h", "src/execution/runtime-profiler.cc", "src/execution/runtime-profiler.h", + "src/execution/shared-mutex-guard-if-off-thread.h", "src/execution/simulator-base.cc", "src/execution/simulator-base.h", "src/execution/simulator.h", @@ -2709,6 +2757,7 @@ v8_source_set("v8_base_without_compiler") { "src/heap/paged-spaces.cc", "src/heap/paged-spaces.h", "src/heap/parallel-work-item.h", + "src/heap/parked-scope.h", "src/heap/read-only-heap-inl.h", "src/heap/read-only-heap.cc", "src/heap/read-only-heap.h", @@ -3111,6 +3160,8 @@ v8_source_set("v8_base_without_compiler") { "src/parsing/expression-scope.h", "src/parsing/func-name-inferrer.cc", "src/parsing/func-name-inferrer.h", + "src/parsing/import-assertions.cc", + "src/parsing/import-assertions.h", "src/parsing/literal-buffer.cc", "src/parsing/literal-buffer.h", "src/parsing/parse-info.cc", @@ -3307,6 +3358,8 @@ v8_source_set("v8_base_without_compiler") { "src/strings/uri.h", "src/tasks/cancelable-task.cc", "src/tasks/cancelable-task.h", + "src/tasks/operations-barrier.cc", + "src/tasks/operations-barrier.h", "src/tasks/task-utils.cc", "src/tasks/task-utils.h", "src/third_party/siphash/halfsiphash.cc", @@ -3391,8 +3444,6 @@ v8_source_set("v8_base_without_compiler") { "src/wasm/wasm-code-manager.cc", "src/wasm/wasm-code-manager.h", "src/wasm/wasm-constants.h", - "src/wasm/wasm-debug-evaluate.cc", - "src/wasm/wasm-debug-evaluate.h", "src/wasm/wasm-debug.cc", "src/wasm/wasm-engine.cc", "src/wasm/wasm-engine.h", @@ -3808,9 +3859,7 @@ v8_source_set("v8_base_without_compiler") { ":cppgc_base_config", ] - defines = [] deps = [ - ":cppgc_base", ":torque_generated_definitions", ":v8_cppgc_shared", ":v8_headers", @@ -3819,10 +3868,12 @@ v8_source_set("v8_base_without_compiler") { ":v8_shared_internal_headers", ":v8_tracing", ":v8_version", + ":v8_wrappers", "src/inspector:inspector", ] public_deps = [ + ":cppgc_base", ":generate_bytecode_builtins_list", ":run_torque", ":v8_maybe_icu", @@ -3983,7 +4034,10 @@ v8_source_set("torque_base") { deps = [ ":v8_shared_internal_headers" ] - public_deps = [ ":v8_libbase" ] + public_deps = [ + ":v8_libbase", + ":v8_wrappers", + ] # The use of exceptions for Torque in violation of the Chromium style-guide # is justified by the fact that it is only used from the non-essential @@ -4106,8 +4160,6 @@ v8_component("v8_libbase") { "src/base/platform/semaphore.h", "src/base/platform/time.cc", "src/base/platform/time.h", - "src/base/platform/wrappers.h", - "src/base/platform/wrappers_std.cc", "src/base/region-allocator.cc", "src/base/region-allocator.h", "src/base/ring-buffer.h", @@ -4132,7 +4184,7 @@ v8_component("v8_libbase") { deps = [ ":v8_headers" ] - public_deps = [] + public_deps = [ ":v8_wrappers" ] data = [] @@ -4173,10 +4225,7 @@ v8_component("v8_libbase") { "src/base/platform/platform-aix.cc", ] - libs = [ - "dl", - "rt", - ] + libs = [ "dl" ] } else if (is_android) { if (current_toolchain == host_toolchain) { libs = [ @@ -4205,6 +4254,7 @@ v8_component("v8_libbase") { "src/base/debug/stack_trace_fuchsia.cc", "src/base/platform/platform-fuchsia.cc", ] + deps += [ "//third_party/fuchsia-sdk/sdk/pkg/zx" ] } else if (is_mac || is_ios) { sources += [ "src/base/debug/stack_trace_posix.cc", @@ -4226,6 +4276,10 @@ v8_component("v8_libbase") { "ws2_32.lib", ] + if (v8_enable_system_instrumentation) { + libs += [ "advapi32.lib" ] # Needed for TraceLoggingProvider.h + } + data_deps += [ "//build/win:runtime_libs" ] } @@ -4268,6 +4322,8 @@ v8_component("v8_libplatform") { "src/libplatform/delayed-task-queue.h", "src/libplatform/task-queue.cc", "src/libplatform/task-queue.h", + "src/libplatform/tracing/recorder-default.cc", + "src/libplatform/tracing/recorder.h", "src/libplatform/tracing/trace-buffer.cc", "src/libplatform/tracing/trace-buffer.h", "src/libplatform/tracing/trace-config.cc", @@ -4287,15 +4343,19 @@ v8_component("v8_libplatform") { public_configs = [ ":libplatform_config" ] + public_deps = [] + deps = [ ":v8_headers", ":v8_libbase", ":v8_tracing", + ":v8_wrappers", ] if (v8_use_perfetto) { sources -= [ "//base/trace_event/common/trace_event_common.h", + "src/libplatform/tracing/recorder-default.cc", "src/libplatform/tracing/trace-buffer.cc", "src/libplatform/tracing/trace-buffer.h", "src/libplatform/tracing/trace-object.cc", @@ -4310,6 +4370,9 @@ v8_component("v8_libplatform") { # TODO(skyostil): Switch TraceEventListener to protozero. "//third_party/perfetto/protos/perfetto/trace:lite", ] + } else if (is_win) { + sources -= [ "src/libplatform/tracing/recorder-default.cc" ] + sources += [ "src/libplatform/tracing/recorder-win.cc" ] } } @@ -4385,6 +4448,26 @@ v8_source_set("v8_cppgc_shared") { public_deps = [ ":v8_libbase" ] } +# This is split out to be a non-code containing target that the Chromium browser +# can depend upon to get basic cppgc types. +v8_header_set("cppgc_headers") { + configs = [ ":internal_config" ] + public_configs = [ + ":v8_header_features", + ":cppgc_header_features", + ] + + sources = [ + "include/cppgc/garbage-collected.h", + "include/cppgc/member.h", + "include/cppgc/persistent.h", + "include/cppgc/type-traits.h", + "include/cppgc/visitor.h", + ] + + public_deps = [ ":v8_headers" ] +} + v8_source_set("cppgc_base") { visibility = [ ":*" ] @@ -4395,6 +4478,7 @@ v8_source_set("cppgc_base") { "include/cppgc/default-platform.h", "include/cppgc/ephemeron-pair.h", "include/cppgc/garbage-collected.h", + "include/cppgc/heap-consistency.h", "include/cppgc/heap.h", "include/cppgc/internal/api-constants.h", "include/cppgc/internal/atomic-entry-flag.h", @@ -4426,6 +4510,7 @@ v8_source_set("cppgc_base") { "src/heap/cppgc/compactor.h", "src/heap/cppgc/concurrent-marker.cc", "src/heap/cppgc/concurrent-marker.h", + "src/heap/cppgc/default-platform.cc", "src/heap/cppgc/free-list.cc", "src/heap/cppgc/free-list.h", "src/heap/cppgc/garbage-collector.h", @@ -4484,6 +4569,7 @@ v8_source_set("cppgc_base") { "src/heap/cppgc/sweeper.cc", "src/heap/cppgc/sweeper.h", "src/heap/cppgc/task-handle.h", + "src/heap/cppgc/trace-event.h", "src/heap/cppgc/trace-trait.cc", "src/heap/cppgc/virtual-memory.cc", "src/heap/cppgc/virtual-memory.h", @@ -4491,6 +4577,12 @@ v8_source_set("cppgc_base") { "src/heap/cppgc/write-barrier.cc", ] + if (cppgc_is_standalone) { + sources += [ "//base/trace_event/common/trace_event_common.h" ] + } else { + deps = [ ":v8_tracing" ] + } + if (cppgc_enable_caged_heap) { sources += [ "include/cppgc/internal/caged-heap-local-data.h", @@ -4621,6 +4713,7 @@ if (current_toolchain == v8_snapshot_toolchain) { ":v8_libplatform", ":v8_maybe_icu", ":v8_tracing", + ":v8_wrappers", "//build/win:default_exe_manifest", ] } @@ -4765,7 +4858,10 @@ group("v8_python_base") { group("v8_clusterfuzz") { testonly = true - deps = [ ":d8" ] + deps = [ + ":d8", + ":v8_simple_inspector_fuzzer", + ] if (v8_multi_arch_build) { deps += [ @@ -4861,16 +4957,22 @@ if (is_component_build) { configs = [ ":internal_config" ] + if (!cppgc_is_standalone) { + deps = [ ":v8" ] + } + public_configs = [ ":external_config" ] } - v8_component("cppgc_for_testing") { - testonly = true + if (cppgc_is_standalone) { + v8_component("cppgc_for_testing") { + testonly = true - public_deps = [ ":cppgc_base" ] + public_deps = [ ":cppgc_base" ] - configs = [ ":internal_config" ] - public_configs = [ ":external_config" ] + configs = [ ":internal_config" ] + public_configs = [ ":external_config" ] + } } v8_component("v8_cppgc_shared_for_testing") { @@ -4908,15 +5010,21 @@ if (is_component_build) { group("cppgc") { public_deps = [ ":cppgc_base" ] + if (!cppgc_is_standalone) { + deps = [ ":v8" ] + } + public_configs = [ ":external_config" ] } - group("cppgc_for_testing") { - testonly = true + if (cppgc_is_standalone) { + group("cppgc_for_testing") { + testonly = true - public_deps = [ ":cppgc_base" ] + public_deps = [ ":cppgc_base" ] - public_configs = [ ":external_config" ] + public_configs = [ ":external_config" ] + } } group("v8_cppgc_shared_for_testing") { @@ -4961,6 +5069,7 @@ v8_executable("d8") { ":v8_libbase", ":v8_libplatform", ":v8_tracing", + ":v8_wrappers", "//build/win:default_exe_manifest", ] @@ -5037,34 +5146,24 @@ if (want_v8_shell) { } } -v8_executable("cppgc_for_v8_embedders") { - sources = [ "samples/cppgc/cppgc-for-v8-embedders.cc" ] - - configs = [ - # Note: don't use :internal_config here because this target will get - # the :external_config applied to it by virtue of depending on :cppgc, and - # you can't have both applied to the same target. - ":internal_config_base", - ] - - deps = [ - ":cppgc", - ":v8_libplatform", - "//build/win:default_exe_manifest", - ] -} - -v8_executable("cppgc_standalone") { - sources = [ "samples/cppgc/cppgc-standalone.cc" ] +v8_executable("cppgc_sample") { + sources = [ "samples/cppgc/cppgc-sample.cc" ] configs = [ # Note: don't use :internal_config here because this target will get # the :external_config applied to it by virtue of depending on :cppgc, and # you can't have both applied to the same target. ":internal_config_base", + ":cppgc_base_config", ] deps = [ ":cppgc" ] + if (!cppgc_is_standalone) { + deps += [ + ":v8", + "//build/win:default_exe_manifest", + ] + } } template("v8_fuzzer") { @@ -5099,7 +5198,10 @@ v8_fuzzer("json_fuzzer") { v8_source_set("multi_return_fuzzer") { sources = [ "test/fuzzer/multi-return.cc" ] - deps = [ ":fuzzer_support" ] + deps = [ + ":fuzzer_support", + ":v8_wrappers", + ] configs = [ ":external_config", @@ -5113,7 +5215,10 @@ v8_fuzzer("multi_return_fuzzer") { v8_source_set("parser_fuzzer") { sources = [ "test/fuzzer/parser.cc" ] - deps = [ ":fuzzer_support" ] + deps = [ + ":fuzzer_support", + ":v8_wrappers", + ] configs = [ ":external_config", @@ -5130,7 +5235,10 @@ v8_source_set("regexp_builtins_fuzzer") { "test/fuzzer/regexp_builtins/mjsunit.js.h", ] - deps = [ ":fuzzer_support" ] + deps = [ + ":fuzzer_support", + ":v8_wrappers", + ] configs = [ ":external_config", @@ -5144,7 +5252,10 @@ v8_fuzzer("regexp_builtins_fuzzer") { v8_source_set("regexp_fuzzer") { sources = [ "test/fuzzer/regexp.cc" ] - deps = [ ":fuzzer_support" ] + deps = [ + ":fuzzer_support", + ":v8_wrappers", + ] configs = [ ":external_config", @@ -5183,6 +5294,7 @@ v8_source_set("wasm_fuzzer") { deps = [ ":fuzzer_support", ":lib_wasm_fuzzer_common", + ":v8_wrappers", ":wasm_test_common", ] @@ -5201,6 +5313,7 @@ v8_source_set("wasm_async_fuzzer") { deps = [ ":fuzzer_support", ":lib_wasm_fuzzer_common", + ":v8_wrappers", ":wasm_test_common", ] @@ -5222,6 +5335,7 @@ v8_source_set("wasm_code_fuzzer") { deps = [ ":fuzzer_support", ":lib_wasm_fuzzer_common", + ":v8_wrappers", ":wasm_test_common", ] @@ -5263,6 +5377,7 @@ v8_source_set("wasm_compile_fuzzer") { deps = [ ":fuzzer_support", ":lib_wasm_fuzzer_common", + ":v8_wrappers", ":wasm_test_common", ] @@ -5280,6 +5395,7 @@ v8_source_set("inspector_fuzzer") { deps = [ ":fuzzer_support", + ":v8_wrappers", "test/inspector:inspector_test", ] diff --git a/deps/v8/DEPS b/deps/v8/DEPS index 3e3fed387db216..e6c2e762e01392 100644 --- a/deps/v8/DEPS +++ b/deps/v8/DEPS @@ -10,7 +10,6 @@ gclient_gn_args = [ # Remove when migration is complete. 'checkout_fuchsia_for_arm64_host', 'checkout_google_benchmark', - 'mac_xcode_version', ] vars = { @@ -47,13 +46,11 @@ vars = { 'checkout_google_benchmark' : False, - 'mac_xcode_version': 'default', - # GN CIPD package version. - 'gn_version': 'git_revision:53d92014bf94c3893886470a1c7c1289f8818db0', + 'gn_version': 'git_revision:595e3be7c8381d4eeefce62a63ec12bae9ce5140', # luci-go CIPD package version. - 'luci_go': 'git_revision:1a022d3a4c50be4207ee93451255d71896416596', + 'luci_go': 'git_revision:67aba6e3373bb0b9e3ef9871362045736cd29b6e', # Three lines of non-changing comments so that # the commit queue can handle CLs rolling android_sdk_build-tools_version @@ -91,15 +88,15 @@ vars = { deps = { 'build': - Var('chromium_url') + '/chromium/src/build.git' + '@' + '2101eff1ac4bfd25f2dfa71ad632a600a38c1ed9', + Var('chromium_url') + '/chromium/src/build.git' + '@' + 'd5995537211ebc4d1bc37f215c25fa3781ba9d6e', 'third_party/depot_tools': - Var('chromium_url') + '/chromium/tools/depot_tools.git' + '@' + '982b2a757087c2519e42b82b93cbfe5adf43cdd5', + Var('chromium_url') + '/chromium/tools/depot_tools.git' + '@' + '82b992a1656d7d1cd0ee3cbea8ff609ffdfed380', 'third_party/icu': - Var('chromium_url') + '/chromium/deps/icu.git' + '@' + 'c2a4cae149aae7fd30c4cbe3cf1b30df03b386f1', + Var('chromium_url') + '/chromium/deps/icu.git' + '@' + '899e18383fd732b47e6978db2b960a1b2a80179b', 'third_party/instrumented_libraries': - Var('chromium_url') + '/chromium/src/third_party/instrumented_libraries.git' + '@' + '6ba978ccb754d270b6cd12da58c8269b617e4f6e', + Var('chromium_url') + '/chromium/src/third_party/instrumented_libraries.git' + '@' + '4d3867052d35b2171f2edbb3466fa8f7e2d11319', 'buildtools': - Var('chromium_url') + '/chromium/src/buildtools.git' + '@' + '6302c1175607a436e18947a5abe9df2209e845fc', + Var('chromium_url') + '/chromium/src/buildtools.git' + '@' + '235cfe435ca5a9826569ee4ef603e226216bd768', 'buildtools/clang_format/script': Var('chromium_url') + '/chromium/llvm-project/cfe/tools/clang-format.git' + '@' + '96636aa0e9f047f17447f2d45a094d0b59ed7917', 'buildtools/linux64': { @@ -187,7 +184,7 @@ deps = { 'dep_type': 'cipd', }, 'third_party/catapult': { - 'url': Var('chromium_url') + '/catapult.git' + '@' + '434681c2378b686117c2b003a58c54d78f22185f', + 'url': Var('chromium_url') + '/catapult.git' + '@' + 'd1a3011cd91205aa96b74b5dfc227d391e88108d', 'condition': 'checkout_android', }, 'third_party/colorama/src': { @@ -195,27 +192,27 @@ deps = { 'condition': 'checkout_android', }, 'third_party/fuchsia-sdk': { - 'url': Var('chromium_url') + '/chromium/src/third_party/fuchsia-sdk.git' + '@' + 'f8df9ff79b878d1998970cc04a197061069e48ce', + 'url': Var('chromium_url') + '/chromium/src/third_party/fuchsia-sdk.git' + '@' + 'efa46583d89ea8c97523281d9f52a0d96472114d', 'condition': 'checkout_fuchsia', }, 'third_party/googletest/src': - Var('chromium_url') + '/external/github.com/google/googletest.git' + '@' + '4fe018038f87675c083d0cfb6a6b57c274fb1753', + Var('chromium_url') + '/external/github.com/google/googletest.git' + '@' + '1b0cdaae57c046c87fb99cb4f69c312a7e794adb', 'third_party/google_benchmark/src': { 'url': Var('chromium_url') + '/external/github.com/google/benchmark.git' + '@' + '7f27afe83b82f3a98baf58ef595814b9d42a5b2b', 'condition': 'checkout_google_benchmark', }, 'third_party/jinja2': - Var('chromium_url') + '/chromium/src/third_party/jinja2.git' + '@' + 'a82a4944a7f2496639f34a89c9923be5908b80aa', + Var('chromium_url') + '/chromium/src/third_party/jinja2.git' + '@' + '11b6b3e5971d760bd2d310f77643f55a818a6d25', 'third_party/markupsafe': Var('chromium_url') + '/chromium/src/third_party/markupsafe.git' + '@' + '0944e71f4b2cb9a871bcbe353f95e889b64a611a', 'tools/swarming_client': - Var('chromium_url') + '/infra/luci/client-py.git' + '@' + 'd46ea7635f2911208268170512cb611412488fd8', + Var('chromium_url') + '/infra/luci/client-py.git' + '@' + '1a072711d4388c62e02480fabc26c68c24494be9', 'test/benchmarks/data': Var('chromium_url') + '/v8/deps/third_party/benchmarks.git' + '@' + '05d7188267b4560491ff9155c5ee13e207ecd65f', 'test/mozilla/data': Var('chromium_url') + '/v8/deps/third_party/mozilla-tests.git' + '@' + 'f6c578a10ea707b1a8ab0b88943fe5115ce2b9be', 'test/test262/data': - Var('chromium_url') + '/external/github.com/tc39/test262.git' + '@' + '0e7319c015fe935594f8bcafaedb0c94f7fec1df', + Var('chromium_url') + '/external/github.com/tc39/test262.git' + '@' + 'b2e9dff2816cceb5ee84c0c226c50a31d01a7297', 'test/test262/harness': Var('chromium_url') + '/external/github.com/test262-utils/test262-harness-py.git' + '@' + '4555345a943d0c99a9461182705543fb171dda4b', 'third_party/qemu-linux-x64': { @@ -242,7 +239,7 @@ deps = { 'packages': [ { 'package': 'fuchsia/third_party/aemu/linux-amd64', - 'version': 'xP4TXh9wWGTG0qr4y6eFcUO_0HOBmt3vorgtVmpwBJsC' + 'version': 'xAHa1IXmKteChkPvba9ezjSnKL7IyDePQRzWVUEAx9UC' }, ], 'condition': 'host_os == "linux" and checkout_fuchsia', @@ -259,7 +256,7 @@ deps = { 'dep_type': 'cipd', }, 'tools/clang': - Var('chromium_url') + '/chromium/src/tools/clang.git' + '@' + 'a37c0858a645506c8e9d3bebab1ed5a5b1f9df61', + Var('chromium_url') + '/chromium/src/tools/clang.git' + '@' + '2246bee280e908ac1fd27ab75e7d0021b14d875c', 'tools/luci-go': { 'packages': [ { @@ -293,7 +290,7 @@ deps = { 'third_party/protobuf': Var('chromium_url') + '/external/github.com/google/protobuf'+ '@' + 'b68a347f56137b4b1a746e8c7438495a6ac1bd91', 'third_party/zlib': - Var('chromium_url') + '/chromium/src/third_party/zlib.git'+ '@' + 'e84c9a3fd75fdc39055b7ae27d6ec508e50bd39e', + Var('chromium_url') + '/chromium/src/third_party/zlib.git'+ '@' + '2c183c9f93a328bfb3121284da13cf89a0f7e64a', 'third_party/jsoncpp/source': Var('chromium_url') + '/external/github.com/open-source-parsers/jsoncpp.git'+ '@' + '9059f5cad030ba11d37818847443a53918c327b1', 'third_party/ittapi': { @@ -490,20 +487,7 @@ hooks = [ 'name': 'mac_toolchain', 'pattern': '.', 'condition': 'checkout_mac', - 'action': ['python', 'build/mac_toolchain.py', - '--xcode-version', Var('mac_xcode_version')], - }, - # Pull binutils for linux, enabled debug fission for faster linking / - # debugging when used with clang on Ubuntu Precise. - # https://code.google.com/p/chromium/issues/detail?id=352046 - { - 'name': 'binutils', - 'pattern': 'third_party/binutils', - 'condition': 'host_os == "linux"', - 'action': [ - 'python', - 'third_party/binutils/download.py', - ], + 'action': ['python', 'build/mac_toolchain.py'], }, { # Note: On Win, this should run after win_toolchain, as it may use it. diff --git a/deps/v8/MIPS_OWNERS b/deps/v8/MIPS_OWNERS index cab3679d656e6a..6c65e34e9c3bf7 100644 --- a/deps/v8/MIPS_OWNERS +++ b/deps/v8/MIPS_OWNERS @@ -1 +1,2 @@ xwafish@gmail.com +zhaojiazhong-hf@loongson.cn diff --git a/deps/v8/WATCHLISTS b/deps/v8/WATCHLISTS index 54d6bbec1c51ff..fa95f144cb73cb 100644 --- a/deps/v8/WATCHLISTS +++ b/deps/v8/WATCHLISTS @@ -87,6 +87,11 @@ 'tracing': { 'filepath': 'src/tracing/', }, + 'ieee754': { + 'filepath': 'src/base/ieee754\.(cc|h)' \ + '|src/base/overflowing-math.h' \ + '|LICENSE.fdlibm', + } }, 'WATCHLISTS': { @@ -133,5 +138,9 @@ 'lpy+v8tracing@chromium.org', 'fmeawad@chromium.org', ], + 'ieee754': [ + 'rtoy+watch@chromium.org', + 'hongchan+watch@chromium.org' + ], }, } diff --git a/deps/v8/build_overrides/build.gni b/deps/v8/build_overrides/build.gni index dde92c46eaa78d..4e0c284efaeae9 100644 --- a/deps/v8/build_overrides/build.gni +++ b/deps/v8/build_overrides/build.gni @@ -32,9 +32,6 @@ use_perfetto_client_library = false # Some non-Chromium builds don't support building java targets. enable_java_templates = false -# Some non-Chromium builds don't use Chromium's third_party/binutils. -linux_use_bundled_binutils_override = true - # Allows different projects to specify their own suppressions files. asan_suppressions_file = "//build/sanitizers/asan_suppressions.cc" lsan_suppressions_file = "//build/sanitizers/lsan_suppressions.cc" diff --git a/deps/v8/gni/v8.gni b/deps/v8/gni/v8.gni index edc944ef0c7a96..5651a178c283df 100644 --- a/deps/v8/gni/v8.gni +++ b/deps/v8/gni/v8.gni @@ -71,6 +71,8 @@ declare_args() { v8_enable_conservative_stack_scanning = false v8_enable_google_benchmark = checkout_google_benchmark + + cppgc_is_standalone = false } if (v8_use_external_startup_data == "") { diff --git a/deps/v8/include/DEPS b/deps/v8/include/DEPS index 7d60081fb480b7..9f4002059b3051 100644 --- a/deps/v8/include/DEPS +++ b/deps/v8/include/DEPS @@ -2,5 +2,8 @@ include_rules = [ # v8-inspector-protocol.h depends on generated files under include/inspector. "+inspector", "+cppgc/common.h", + # Used by v8-cppgc.h to bridge to cppgc. + "+cppgc/custom-space.h", + "+cppgc/internal/write-barrier.h", "+cppgc/visitor.h", ] diff --git a/deps/v8/include/cppgc/allocation.h b/deps/v8/include/cppgc/allocation.h index 556f313a4ac81c..1164f6925cdcf7 100644 --- a/deps/v8/include/cppgc/allocation.h +++ b/deps/v8/include/cppgc/allocation.h @@ -39,9 +39,8 @@ class V8_EXPORT MakeGarbageCollectedTraitInternal { const_cast(reinterpret_cast( reinterpret_cast(payload) - api_constants::kFullyConstructedBitFieldOffsetFromPayload))); - uint16_t value = atomic_mutable_bitfield->load(std::memory_order_relaxed); - value = value | api_constants::kFullyConstructedBitMask; - atomic_mutable_bitfield->store(value, std::memory_order_release); + atomic_mutable_bitfield->fetch_or(api_constants::kFullyConstructedBitMask, + std::memory_order_release); } static void* Allocate(cppgc::AllocationHandle& handle, size_t size, @@ -113,11 +112,29 @@ class MakeGarbageCollectedTraitBase }; /** - * struct used specify to MakeGarbageCollected how many bytes should be - * appended to the allocated object. + * Passed to MakeGarbageCollected to specify how many bytes should be appended + * to the allocated object. + * + * Example: + * \code + * class InlinedArray final : public GarbageCollected { + * public: + * explicit InlinedArray(size_t bytes) : size(bytes), byte_array(this + 1) {} + * void Trace(Visitor*) const {} + + * size_t size; + * char* byte_array; + * }; + * + * auto* inlined_array = MakeGarbageCollectedbyte_array[i]); + * } + * \endcode */ struct AdditionalBytes { - explicit AdditionalBytes(size_t bytes) : value(bytes) {} + constexpr explicit AdditionalBytes(size_t bytes) : value(bytes) {} const size_t value; }; diff --git a/deps/v8/include/cppgc/common.h b/deps/v8/include/cppgc/common.h index 228b9abb74e763..1fff1a03fe369f 100644 --- a/deps/v8/include/cppgc/common.h +++ b/deps/v8/include/cppgc/common.h @@ -14,11 +14,11 @@ namespace cppgc { enum class EmbedderStackState { kMayContainHeapPointers, kNoHeapPointers, - kUnknown V8_ENUM_DEPRECATE_SOON("Use kMayContainHeapPointers") = + kUnknown V8_ENUM_DEPRECATED("Use kMayContainHeapPointers") = kMayContainHeapPointers, - kNonEmpty V8_ENUM_DEPRECATE_SOON("Use kMayContainHeapPointers") = + kNonEmpty V8_ENUM_DEPRECATED("Use kMayContainHeapPointers") = kMayContainHeapPointers, - kEmpty V8_ENUM_DEPRECATE_SOON("Use kNoHeapPointers") = kNoHeapPointers, + kEmpty V8_ENUM_DEPRECATED("Use kNoHeapPointers") = kNoHeapPointers, }; } // namespace cppgc diff --git a/deps/v8/include/cppgc/default-platform.h b/deps/v8/include/cppgc/default-platform.h index 28990da92e6550..2ccdeddd8376f4 100644 --- a/deps/v8/include/cppgc/default-platform.h +++ b/deps/v8/include/cppgc/default-platform.h @@ -20,12 +20,24 @@ namespace cppgc { */ class V8_EXPORT DefaultPlatform : public Platform { public: + /** + * Use this method instead of 'cppgc::InitializeProcess' when using + * 'cppgc::DefaultPlatform'. 'cppgc::DefaultPlatform::InitializeProcess' + * will initialize cppgc and v8 if needed (for non-standalone builds). + * + * \param platform DefaultPlatform instance used to initialize cppgc/v8. + */ + static void InitializeProcess(DefaultPlatform* platform); + using IdleTaskSupport = v8::platform::IdleTaskSupport; explicit DefaultPlatform( int thread_pool_size = 0, - IdleTaskSupport idle_task_support = IdleTaskSupport::kDisabled) - : v8_platform_(v8::platform::NewDefaultPlatform(thread_pool_size, - idle_task_support)) {} + IdleTaskSupport idle_task_support = IdleTaskSupport::kDisabled, + std::unique_ptr tracing_controller = {}) + : v8_platform_(v8::platform::NewDefaultPlatform( + thread_pool_size, idle_task_support, + v8::platform::InProcessStackDumping::kDisabled, + std::move(tracing_controller))) {} cppgc::PageAllocator* GetPageAllocator() override { return v8_platform_->GetPageAllocator(); @@ -48,6 +60,10 @@ class V8_EXPORT DefaultPlatform : public Platform { return v8_platform_->PostJob(priority, std::move(job_task)); } + TracingController* GetTracingController() override { + return v8_platform_->GetTracingController(); + } + protected: static constexpr v8::Isolate* kNoIsolate = nullptr; diff --git a/deps/v8/include/cppgc/heap-consistency.h b/deps/v8/include/cppgc/heap-consistency.h new file mode 100644 index 00000000000000..4a4eb103817e6e --- /dev/null +++ b/deps/v8/include/cppgc/heap-consistency.h @@ -0,0 +1,137 @@ +// Copyright 2020 the V8 project authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef INCLUDE_CPPGC_HEAP_CONSISTENCY_H_ +#define INCLUDE_CPPGC_HEAP_CONSISTENCY_H_ + +#include + +#include "cppgc/internal/write-barrier.h" +#include "cppgc/trace-trait.h" +#include "v8config.h" // NOLINT(build/include_directory) + +namespace cppgc { + +class HeapHandle; + +namespace subtle { + +/** + * **DO NOT USE: Use the appropriate managed types.** + * + * Consistency helpers that aid in maintaining a consistent internal state of + * the garbage collector. + */ +class HeapConsistency final { + public: + using WriteBarrierParams = internal::WriteBarrier::Params; + using WriteBarrierType = internal::WriteBarrier::Type; + + /** + * Gets the required write barrier type for a specific write. + * + * \param slot Slot containing the pointer to the object. The slot itself + * must reside in an object that has been allocated using + * `MakeGarbageCollected()`. + * \param value The pointer to the object. May be an interior pointer to an + * interface of the actual object. + * \param params Parameters that may be used for actual write barrier calls. + * Only filled if return value indicates that a write barrier is needed. The + * contents of the `params` are an implementation detail. + * \returns whether a write barrier is needed and which barrier to invoke. + */ + static V8_INLINE WriteBarrierType GetWriteBarrierType( + const void* slot, const void* value, WriteBarrierParams& params) { + return internal::WriteBarrier::GetWriteBarrierType(slot, value, params); + } + + /** + * Gets the required write barrier type for a specific write. + * + * \param slot Slot containing the pointer to some part of an object object + * that has been allocated using `MakeGarbageCollected()`. Does not consider + * the value of `slot`. + * \param params Parameters that may be used for actual write barrier calls. + * Only filled if return value indicates that a write barrier is needed. The + * contents of the `params` are an implementation detail. + * \returns whether a write barrier is needed and which barrier to invoke. + */ + static V8_INLINE WriteBarrierType + GetWriteBarrierType(const void* slot, WriteBarrierParams& params) { + return internal::WriteBarrier::GetWriteBarrierType(slot, params); + } + + /** + * Conservative Dijkstra-style write barrier that processes an object if it + * has not yet been processed. + * + * \param params The parameters retrieved from `GetWriteBarrierType()`. + * \param object The pointer to the object. May be an interior pointer to a + * an interface of the actual object. + */ + static V8_INLINE void DijkstraWriteBarrier(const WriteBarrierParams& params, + const void* object) { + internal::WriteBarrier::DijkstraMarkingBarrier(params, object); + } + + /** + * Conservative Dijkstra-style write barrier that processes a range of + * elements if they have not yet been processed. + * + * \param params The parameters retrieved from `GetWriteBarrierType()`. + * \param heap The corresponding heap. + * \param first_element Pointer to the first element that should be processed. + * The slot itself must reside in an object that has been allocated using + * `MakeGarbageCollected()`. + * \param element_size Size of the element in bytes. + * \param number_of_elements Number of elements that should be processed, + * starting with `first_element`. + * \param trace_callback The trace callback that should be invoked for each + * element if necessary. + */ + static V8_INLINE void DijkstraWriteBarrierRange( + const WriteBarrierParams& params, HeapHandle& heap, + const void* first_element, size_t element_size, size_t number_of_elements, + TraceCallback trace_callback) { + internal::WriteBarrier::DijkstraMarkingBarrierRange( + params, heap, first_element, element_size, number_of_elements, + trace_callback); + } + + /** + * Steele-style write barrier that re-processes an object if it has already + * been processed. + * + * \param params The parameters retrieved from `GetWriteBarrierType()`. + * \param object The pointer to the object which must point to an object that + * has been allocated using `MakeGarbageCollected()`. Interior pointers are + * not supported. + */ + static V8_INLINE void SteeleWriteBarrier(const WriteBarrierParams& params, + const void* object) { + internal::WriteBarrier::SteeleMarkingBarrier(params, object); + } + + /** + * Generational barrier for maintaining consistency when running with multiple + * generations. + * + * \param params The parameters retrieved from `GetWriteBarrierType()`. + * \param slot Slot containing the pointer to the object. The slot itself + * must reside in an object that has been allocated using + * `MakeGarbageCollected()`. + */ + static V8_INLINE void GenerationalBarrier(const WriteBarrierParams& params, + const void* slot) { + internal::WriteBarrier::GenerationalBarrier(params, slot); + } + + private: + HeapConsistency() = delete; +}; + +} // namespace subtle +} // namespace cppgc + +#endif // INCLUDE_CPPGC_HEAP_CONSISTENCY_H_ diff --git a/deps/v8/include/cppgc/heap.h b/deps/v8/include/cppgc/heap.h index 04a55598bd853a..fd0512f1f18e16 100644 --- a/deps/v8/include/cppgc/heap.h +++ b/deps/v8/include/cppgc/heap.h @@ -29,6 +29,11 @@ namespace internal { class Heap; } // namespace internal +/** + * Used for additional heap APIs. + */ +class HeapHandle; + class V8_EXPORT Heap { public: /** @@ -51,6 +56,41 @@ class V8_EXPORT Heap { kNoConservativeStackScan, }; + /** + * Specifies supported marking types + */ + enum class MarkingType : uint8_t { + /** + * Atomic stop-the-world marking. This option does not require any write + * barriers but is the most intrusive in terms of jank. + */ + kAtomic, + /** + * Incremental marking, i.e. interleave marking is the rest of the + * application on the same thread. + */ + kIncremental, + /** + * Incremental and concurrent marking. + */ + kIncrementalAndConcurrent + }; + + /** + * Specifies supported sweeping types + */ + enum class SweepingType : uint8_t { + /** + * Atomic stop-the-world sweeping. All of sweeping is performed at once. + */ + kAtomic, + /** + * Incremental and concurrent sweeping. Sweeping is split and interleaved + * with the rest of the application. + */ + kIncrementalAndConcurrent + }; + /** * Constraints for a Heap setup. */ @@ -93,6 +133,16 @@ class V8_EXPORT Heap { */ StackSupport stack_support = StackSupport::kSupportsConservativeStackScan; + /** + * Specifies which types of marking are supported by the heap. + */ + MarkingType marking_support = MarkingType::kIncrementalAndConcurrent; + + /** + * Specifies which types of sweeping are supported by the heap. + */ + SweepingType sweeping_support = SweepingType::kIncrementalAndConcurrent; + /** * Resource constraints specifying various properties that the internal * GC scheduler follows. @@ -132,6 +182,12 @@ class V8_EXPORT Heap { */ AllocationHandle& GetAllocationHandle(); + /** + * \returns the opaque heap handle which may be used to refer to this heap in + * other APIs. Valid as long as the underlying `Heap` is alive. + */ + HeapHandle& GetHeapHandle(); + private: Heap() = default; diff --git a/deps/v8/include/cppgc/internal/api-constants.h b/deps/v8/include/cppgc/internal/api-constants.h index 1303b8b861f648..a70f00710c8b8a 100644 --- a/deps/v8/include/cppgc/internal/api-constants.h +++ b/deps/v8/include/cppgc/internal/api-constants.h @@ -28,7 +28,7 @@ constexpr size_t kGB = kMB * 1024; static constexpr size_t kFullyConstructedBitFieldOffsetFromPayload = 2 * sizeof(uint16_t); // Mask for in-construction bit. -static constexpr size_t kFullyConstructedBitMask = size_t{1}; +static constexpr uint16_t kFullyConstructedBitMask = uint16_t{1}; static constexpr size_t kPageSize = size_t{1} << 17; diff --git a/deps/v8/include/cppgc/internal/pointer-policies.h b/deps/v8/include/cppgc/internal/pointer-policies.h index 50c5d5768fcf84..58f2515a3d7e1b 100644 --- a/deps/v8/include/cppgc/internal/pointer-policies.h +++ b/deps/v8/include/cppgc/internal/pointer-policies.h @@ -28,7 +28,17 @@ struct DijkstraWriteBarrierPolicy { // barrier doesn't break the tri-color invariant. } static void AssigningBarrier(const void* slot, const void* value) { - WriteBarrier::MarkingBarrier(slot, value); + WriteBarrier::Params params; + switch (WriteBarrier::GetWriteBarrierType(slot, value, params)) { + case WriteBarrier::Type::kGenerational: + WriteBarrier::GenerationalBarrier(params, slot); + break; + case WriteBarrier::Type::kMarking: + WriteBarrier::DijkstraMarkingBarrier(params, value); + break; + case WriteBarrier::Type::kNone: + break; + } } }; diff --git a/deps/v8/include/cppgc/internal/write-barrier.h b/deps/v8/include/cppgc/internal/write-barrier.h index 5bf550b02610dd..e3cc4c989d89dd 100644 --- a/deps/v8/include/cppgc/internal/write-barrier.h +++ b/deps/v8/include/cppgc/internal/write-barrier.h @@ -7,6 +7,7 @@ #include "cppgc/internal/api-constants.h" #include "cppgc/internal/process-heap.h" +#include "cppgc/trace-trait.h" #include "v8config.h" // NOLINT(build/include_directory) #if defined(CPPGC_CAGED_HEAP) @@ -14,64 +15,235 @@ #endif namespace cppgc { + +class HeapHandle; + namespace internal { +class WriteBarrierTypeForCagedHeapPolicy; +class WriteBarrierTypeForNonCagedHeapPolicy; + class V8_EXPORT WriteBarrier final { public: - static V8_INLINE void MarkingBarrier(const void* slot, const void* value) { + enum class Type : uint8_t { + kNone, + kMarking, + kGenerational, + }; + + struct Params { +#if V8_ENABLE_CHECKS + Type type = Type::kNone; +#endif // !V8_ENABLE_CHECKS #if defined(CPPGC_CAGED_HEAP) - const uintptr_t start = - reinterpret_cast(value) & - ~(api_constants::kCagedHeapReservationAlignment - 1); - const uintptr_t slot_offset = reinterpret_cast(slot) - start; - if (slot_offset > api_constants::kCagedHeapReservationSize) { - // Check if slot is on stack or value is sentinel or nullptr. This relies - // on the fact that kSentinelPointer is encoded as 0x1. - return; - } + uintptr_t start; - CagedHeapLocalData* local_data = - reinterpret_cast(start); - if (V8_UNLIKELY(local_data->is_marking_in_progress)) { - MarkingBarrierSlow(value); - return; + CagedHeapLocalData& caged_heap() const { + return *reinterpret_cast(start); } + uintptr_t slot_offset; + uintptr_t value_offset; +#endif // CPPGC_CAGED_HEAP + }; + + enum class ValueMode { + kValuePresent, + kNoValuePresent, + }; + + // Returns the required write barrier for a given `slot` and `value`. + static V8_INLINE Type GetWriteBarrierType(const void* slot, const void* value, + Params& params); + // Returns the required write barrier for a given `slot`. + static V8_INLINE Type GetWriteBarrierType(const void* slot, Params& params); + + static V8_INLINE void DijkstraMarkingBarrier(const Params& params, + const void* object); + static V8_INLINE void DijkstraMarkingBarrierRange( + const Params& params, HeapHandle& heap, const void* first_element, + size_t element_size, size_t number_of_elements, + TraceCallback trace_callback); + static V8_INLINE void SteeleMarkingBarrier(const Params& params, + const void* object); #if defined(CPPGC_YOUNG_GENERATION) - GenerationalBarrier(local_data, slot, slot_offset, - reinterpret_cast(value) - start); -#endif -#else - if (V8_LIKELY(!ProcessHeap::IsAnyIncrementalOrConcurrentMarking())) return; + static V8_INLINE void GenerationalBarrier(const Params& params, + const void* slot); +#else // !CPPGC_YOUNG_GENERATION + static V8_INLINE void GenerationalBarrier(const Params& params, + const void* slot) {} +#endif // CPPGC_YOUNG_GENERATION - MarkingBarrierSlowWithSentinelCheck(value); -#endif // CPPGC_CAGED_HEAP - } +#if V8_ENABLE_CHECKS + static void CheckParams(Type expected_type, const Params& params); +#else // !V8_ENABLE_CHECKS + static void CheckParams(Type expected_type, const Params& params) {} +#endif // !V8_ENABLE_CHECKS private: WriteBarrier() = delete; - static void MarkingBarrierSlow(const void* value); - static void MarkingBarrierSlowWithSentinelCheck(const void* value); +#if defined(CPPGC_CAGED_HEAP) + using WriteBarrierTypePolicy = WriteBarrierTypeForCagedHeapPolicy; +#else // !CPPGC_CAGED_HEAP + using WriteBarrierTypePolicy = WriteBarrierTypeForNonCagedHeapPolicy; +#endif // !CPPGC_CAGED_HEAP + + static void DijkstraMarkingBarrierSlow(const void* value); + static void DijkstraMarkingBarrierSlowWithSentinelCheck(const void* value); + static void DijkstraMarkingBarrierRangeSlow(HeapHandle& heap_handle, + const void* first_element, + size_t element_size, + size_t number_of_elements, + TraceCallback trace_callback); + static void SteeleMarkingBarrierSlow(const void* value); + static void SteeleMarkingBarrierSlowWithSentinelCheck(const void* value); #if defined(CPPGC_YOUNG_GENERATION) - static V8_INLINE void GenerationalBarrier(CagedHeapLocalData* local_data, - const void* slot, - uintptr_t slot_offset, - uintptr_t value_offset) { - const AgeTable& age_table = local_data->age_table; + static void GenerationalBarrierSlow(const CagedHeapLocalData& local_data, + const AgeTable& ageTable, + const void* slot, uintptr_t value_offset); +#endif // CPPGC_YOUNG_GENERATION +}; - // Bail out if the slot is in young generation. - if (V8_LIKELY(age_table[slot_offset] == AgeTable::Age::kYoung)) return; +#if defined(CPPGC_CAGED_HEAP) +class WriteBarrierTypeForCagedHeapPolicy final { + public: + template + static V8_INLINE WriteBarrier::Type Get(const void* slot, const void* value, + WriteBarrier::Params& params) { + const bool have_caged_heap = + value_mode == WriteBarrier::ValueMode::kValuePresent + ? TryGetCagedHeap(slot, value, params) + : TryGetCagedHeap(slot, slot, params); + if (!have_caged_heap) { + return WriteBarrier::Type::kNone; + } + if (V8_UNLIKELY(params.caged_heap().is_marking_in_progress)) { +#if V8_ENABLE_CHECKS + params.type = WriteBarrier::Type::kMarking; +#endif // !V8_ENABLE_CHECKS + return WriteBarrier::Type::kMarking; + } +#if defined(CPPGC_YOUNG_GENERATION) + params.slot_offset = reinterpret_cast(slot) - params.start; + if (value_mode == WriteBarrier::ValueMode::kValuePresent) { + params.value_offset = reinterpret_cast(value) - params.start; + } else { + params.value_offset = 0; + } +#if V8_ENABLE_CHECKS + params.type = WriteBarrier::Type::kGenerational; +#endif // !V8_ENABLE_CHECKS + return WriteBarrier::Type::kGenerational; +#else // !CPPGC_YOUNG_GENERATION + return WriteBarrier::Type::kNone; +#endif // !CPPGC_YOUNG_GENERATION + } - GenerationalBarrierSlow(local_data, age_table, slot, value_offset); + private: + WriteBarrierTypeForCagedHeapPolicy() = delete; + + static V8_INLINE bool TryGetCagedHeap(const void* slot, const void* value, + WriteBarrier::Params& params) { + params.start = reinterpret_cast(value) & + ~(api_constants::kCagedHeapReservationAlignment - 1); + const uintptr_t slot_offset = + reinterpret_cast(slot) - params.start; + if (slot_offset > api_constants::kCagedHeapReservationSize) { + // Check if slot is on stack or value is sentinel or nullptr. This relies + // on the fact that kSentinelPointer is encoded as 0x1. + return false; + } + return true; + } +}; +#endif // CPPGC_CAGED_HEAP + +class WriteBarrierTypeForNonCagedHeapPolicy final { + public: + template + static V8_INLINE WriteBarrier::Type Get(const void* slot, const void* value, + WriteBarrier::Params& params) { + WriteBarrier::Type type = + V8_LIKELY(!ProcessHeap::IsAnyIncrementalOrConcurrentMarking()) + ? WriteBarrier::Type::kNone + : WriteBarrier::Type::kMarking; +#if V8_ENABLE_CHECKS + params.type = type; +#endif // !V8_ENABLE_CHECKS + return type; } - static void GenerationalBarrierSlow(CagedHeapLocalData* local_data, - const AgeTable& ageTable, - const void* slot, uintptr_t value_offset); -#endif + private: + WriteBarrierTypeForNonCagedHeapPolicy() = delete; }; +// static +WriteBarrier::Type WriteBarrier::GetWriteBarrierType( + const void* slot, const void* value, WriteBarrier::Params& params) { + return WriteBarrierTypePolicy::Get(slot, value, + params); +} + +// static +WriteBarrier::Type WriteBarrier::GetWriteBarrierType( + const void* slot, WriteBarrier::Params& params) { + return WriteBarrierTypePolicy::Get(slot, nullptr, + params); +} + +// static +void WriteBarrier::DijkstraMarkingBarrier(const Params& params, + const void* object) { + CheckParams(Type::kMarking, params); +#if defined(CPPGC_CAGED_HEAP) + // Caged heap already filters out sentinels. + DijkstraMarkingBarrierSlow(object); +#else // !CPPGC_CAGED_HEAP + DijkstraMarkingBarrierSlowWithSentinelCheck(object); +#endif // !CPPGC_CAGED_HEAP +} + +// static +void WriteBarrier::DijkstraMarkingBarrierRange(const Params& params, + HeapHandle& heap, + const void* first_element, + size_t element_size, + size_t number_of_elements, + TraceCallback trace_callback) { + CheckParams(Type::kMarking, params); + DijkstraMarkingBarrierRangeSlow(heap, first_element, element_size, + number_of_elements, trace_callback); +} + +// static +void WriteBarrier::SteeleMarkingBarrier(const Params& params, + const void* object) { + CheckParams(Type::kMarking, params); +#if defined(CPPGC_CAGED_HEAP) + // Caged heap already filters out sentinels. + SteeleMarkingBarrierSlow(object); +#else // !CPPGC_CAGED_HEAP + SteeleMarkingBarrierSlowWithSentinelCheck(object); +#endif // !CPPGC_CAGED_HEAP +} + +#if defined(CPPGC_YOUNG_GENERATION) +// static +void WriteBarrier::GenerationalBarrier(const Params& params, const void* slot) { + CheckParams(Type::kGenerational, params); + + const CagedHeapLocalData& local_data = params.caged_heap(); + const AgeTable& age_table = local_data.age_table; + + // Bail out if the slot is in young generation. + if (V8_LIKELY(age_table[params.slot_offset] == AgeTable::Age::kYoung)) return; + + GenerationalBarrierSlow(local_data, age_table, slot, params.value_offset); +} + +#endif // !CPPGC_YOUNG_GENERATION + } // namespace internal } // namespace cppgc diff --git a/deps/v8/include/cppgc/platform.h b/deps/v8/include/cppgc/platform.h index fb0b6b208275c9..571aa80c3b80f1 100644 --- a/deps/v8/include/cppgc/platform.h +++ b/deps/v8/include/cppgc/platform.h @@ -20,6 +20,7 @@ using PageAllocator = v8::PageAllocator; using Task = v8::Task; using TaskPriority = v8::TaskPriority; using TaskRunner = v8::TaskRunner; +using TracingController = v8::TracingController; /** * Platform interface used by Heap. Contains allocators and executors. @@ -113,6 +114,13 @@ class V8_EXPORT Platform { TaskPriority priority, std::unique_ptr job_task) { return nullptr; } + + /** + * Returns an instance of a `TracingController`. This must be non-nullptr. The + * default implementation returns an empty `TracingController` that consumes + * trace data without effect. + */ + virtual TracingController* GetTracingController(); }; /** diff --git a/deps/v8/include/cppgc/prefinalizer.h b/deps/v8/include/cppgc/prefinalizer.h index bde76429ec95c4..9b7bc0e5943870 100644 --- a/deps/v8/include/cppgc/prefinalizer.h +++ b/deps/v8/include/cppgc/prefinalizer.h @@ -34,7 +34,7 @@ class PrefinalizerRegistration final { public: \ static bool InvokePreFinalizer(const cppgc::LivenessBroker& liveness_broker, \ void* object) { \ - static_assert(cppgc::internal::IsGarbageCollectedTypeV, \ + static_assert(cppgc::IsGarbageCollectedTypeV, \ "Only garbage collected objects can have prefinalizers"); \ Class* self = static_cast(object); \ if (liveness_broker.IsHeapObjectAlive(self)) return false; \ diff --git a/deps/v8/include/cppgc/type-traits.h b/deps/v8/include/cppgc/type-traits.h index 4d8ab809c8d439..c7d02db902389c 100644 --- a/deps/v8/include/cppgc/type-traits.h +++ b/deps/v8/include/cppgc/type-traits.h @@ -5,6 +5,8 @@ #ifndef INCLUDE_CPPGC_TYPE_TRAITS_H_ #define INCLUDE_CPPGC_TYPE_TRAITS_H_ +// This file should stay with minimal dependencies to allow embedder to check +// against Oilpan types without including any other parts. #include namespace cppgc { @@ -12,6 +14,14 @@ namespace cppgc { class Visitor; namespace internal { +template +class BasicMember; +struct DijkstraWriteBarrierPolicy; +struct NoWriteBarrierPolicy; +class StrongMemberTag; +class UntracedMemberTag; +class WeakMemberTag; // Pre-C++17 custom implementation of std::void_t. template @@ -25,18 +35,6 @@ using void_t = typename make_void::type; template struct IsWeak : std::false_type {}; -template class U> -struct IsSubclassOfTemplate { - private: - template - static std::true_type SubclassCheck(U*); - static std::false_type SubclassCheck(...); - - public: - static constexpr bool value = - decltype(SubclassCheck(std::declval()))::value; -}; - // IsTraceMethodConst is used to verify that all Trace methods are marked as // const. It is equivalent to IsTraceable but for a non-const object. template @@ -91,16 +89,56 @@ struct IsGarbageCollectedType< static_assert(sizeof(T), "T must be fully defined"); }; +template +struct IsSubclassOfBasicMemberTemplate { + private: + template + static std::true_type SubclassCheck( + BasicMember*); + static std::false_type SubclassCheck(...); + + public: + static constexpr bool value = + decltype(SubclassCheck(std::declval()))::value; +}; + +template ::value> +struct IsMemberType : std::false_type {}; + template -constexpr bool IsGarbageCollectedTypeV = - internal::IsGarbageCollectedType::value; +struct IsMemberType : std::true_type {}; + +template ::value> +struct IsWeakMemberType : std::false_type {}; template -constexpr bool IsGarbageCollectedMixinTypeV = - internal::IsGarbageCollectedMixinType::value; +struct IsWeakMemberType : std::true_type {}; + +template ::value> +struct IsUntracedMemberType : std::false_type {}; + +template +struct IsUntracedMemberType : std::true_type {}; } // namespace internal +template +constexpr bool IsGarbageCollectedMixinTypeV = + internal::IsGarbageCollectedMixinType::value; +template +constexpr bool IsGarbageCollectedTypeV = + internal::IsGarbageCollectedType::value; +template +constexpr bool IsMemberTypeV = internal::IsMemberType::value; +template +constexpr bool IsUntracedMemberTypeV = internal::IsUntracedMemberType::value; +template +constexpr bool IsWeakMemberTypeV = internal::IsWeakMemberType::value; template constexpr bool IsWeakV = internal::IsWeak::value; diff --git a/deps/v8/include/cppgc/visitor.h b/deps/v8/include/cppgc/visitor.h index 01f5f20e520b65..74024c3d0e2568 100644 --- a/deps/v8/include/cppgc/visitor.h +++ b/deps/v8/include/cppgc/visitor.h @@ -190,7 +190,7 @@ class V8_EXPORT Visitor { static_assert(internal::IsAllocatedOnCompactableSpace::value, "Only references to objects allocated on compactable spaces " "should be registered as movable slots."); - static_assert(!internal::IsGarbageCollectedMixinTypeV, + static_assert(!IsGarbageCollectedMixinTypeV, "Mixin types do not support compaction."); HandleMovableReference(reinterpret_cast(slot)); } diff --git a/deps/v8/include/js_protocol.pdl b/deps/v8/include/js_protocol.pdl index 6971edd5103a72..42470d88efd577 100644 --- a/deps/v8/include/js_protocol.pdl +++ b/deps/v8/include/js_protocol.pdl @@ -211,21 +211,6 @@ domain Debugger # Exception details. optional Runtime.ExceptionDetails exceptionDetails - # Execute a Wasm Evaluator module on a given call frame. - experimental command executeWasmEvaluator - parameters - # WebAssembly call frame identifier to evaluate on. - CallFrameId callFrameId - # Code of the evaluator module. - binary evaluator - # Terminate execution after timing out (number of milliseconds). - experimental optional Runtime.TimeDelta timeout - returns - # Object wrapper for the evaluation result. - Runtime.RemoteObject result - # Exception details. - optional Runtime.ExceptionDetails exceptionDetails - # Returns possible locations for breakpoint. scriptId in start and end range locations should be # the same. command getPossibleBreakpoints @@ -508,6 +493,7 @@ domain Debugger enum reason ambiguous assert + CSPViolation debugCommand DOM EventListener @@ -1022,8 +1008,9 @@ domain Runtime boolean symbol bigint - wasm - # Object subtype hint. Specified for `object` or `wasm` type values only. + # Object subtype hint. Specified for `object` type values only. + # NOTE: If you change anything here, make sure to also update + # `subtype` in `ObjectPreview` and `PropertyPreview` below. optional enum subtype array null @@ -1042,12 +1029,7 @@ domain Runtime typedarray arraybuffer dataview - i32 - i64 - f32 - f64 - v128 - externref + webassemblymemory # Object class (constructor) name. Specified for `object` type values only. optional string className # Remote object value in case of primitive values or JSON values (if it was requested). @@ -1100,6 +1082,12 @@ domain Runtime iterator generator error + proxy + promise + typedarray + arraybuffer + dataview + webassemblymemory # String representation of the object. optional string description # True iff some of the properties or entries of the original object did not fit. @@ -1142,6 +1130,12 @@ domain Runtime iterator generator error + proxy + promise + typedarray + arraybuffer + dataview + webassemblymemory experimental type EntryPreview extends object properties @@ -1224,6 +1218,10 @@ domain Runtime string origin # Human readable name describing given context. string name + # A system-unique execution context identifier. Unlike the id, this is unique accross + # multiple processes, so can be reliably used to identify specific context while backend + # performs a cross-process navigation. + experimental string uniqueId # Embedder-specific auxiliary data. optional object auxData @@ -1387,6 +1385,9 @@ domain Runtime optional boolean silent # Specifies in which execution context to perform evaluation. If the parameter is omitted the # evaluation will be performed in the context of the inspected page. + # This is mutually exclusive with `uniqueContextId`, which offers an + # alternative way to identify the execution context that is more reliable + # in a multi-process environment. optional ExecutionContextId contextId # Whether the result is expected to be a JSON object that should be sent by value. optional boolean returnByValue @@ -1413,6 +1414,13 @@ domain Runtime # when called with non-callable arguments. This flag bypasses CSP for this # evaluation and allows unsafe-eval. Defaults to true. experimental optional boolean allowUnsafeEvalBlockedByCSP + # An alternative way to specify the execution context to evaluate in. + # Compared to contextId that may be reused accross processes, this is guaranteed to be + # system-unique, so it can be used to prevent accidental evaluation of the expression + # in context different than intended (e.g. as a result of navigation accross process + # boundaries). + # This is mutually exclusive with `contextId`. + experimental optional string uniqueContextId returns # Evaluation result. RemoteObject result diff --git a/deps/v8/include/libplatform/libplatform.h b/deps/v8/include/libplatform/libplatform.h index 1c874ba29b2e94..00de81df887fc4 100644 --- a/deps/v8/include/libplatform/libplatform.h +++ b/deps/v8/include/libplatform/libplatform.h @@ -43,6 +43,17 @@ V8_PLATFORM_EXPORT std::unique_ptr NewDefaultPlatform( InProcessStackDumping::kDisabled, std::unique_ptr tracing_controller = {}); +/** + * The same as NewDefaultPlatform but disables the worker thread pool. + * It must be used with the --single-threaded V8 flag. + */ +V8_PLATFORM_EXPORT std::unique_ptr +NewSingleThreadedDefaultPlatform( + IdleTaskSupport idle_task_support = IdleTaskSupport::kDisabled, + InProcessStackDumping in_process_stack_dumping = + InProcessStackDumping::kDisabled, + std::unique_ptr tracing_controller = {}); + /** * Returns a new instance of the default v8::JobHandle implementation. * diff --git a/deps/v8/include/libplatform/v8-tracing.h b/deps/v8/include/libplatform/v8-tracing.h index 45822d00f371d4..c7a5c4f9f5fb5a 100644 --- a/deps/v8/include/libplatform/v8-tracing.h +++ b/deps/v8/include/libplatform/v8-tracing.h @@ -125,6 +125,8 @@ class V8_PLATFORM_EXPORT TraceWriter { static TraceWriter* CreateJSONTraceWriter(std::ostream& stream, const std::string& tag); + static TraceWriter* CreateSystemInstrumentationTraceWriter(); + private: // Disallow copy and assign TraceWriter(const TraceWriter&) = delete; diff --git a/deps/v8/include/v8-cppgc.h b/deps/v8/include/v8-cppgc.h index 805eb015e053d3..8a0d9cb9a0737e 100644 --- a/deps/v8/include/v8-cppgc.h +++ b/deps/v8/include/v8-cppgc.h @@ -5,12 +5,55 @@ #ifndef INCLUDE_V8_CPPGC_H_ #define INCLUDE_V8_CPPGC_H_ +#include +#include + +#include "cppgc/custom-space.h" +#include "cppgc/internal/write-barrier.h" #include "cppgc/visitor.h" #include "v8-internal.h" // NOLINT(build/include_directory) -#include "v8.h" // NOLINT(build/include_directory) +#include "v8.h" // NOLINT(build/include_directory) + +namespace cppgc { +class AllocationHandle; +class HeapHandle; +} // namespace cppgc namespace v8 { +namespace internal { +class CppHeap; +} // namespace internal + +struct V8_EXPORT CppHeapCreateParams { + std::vector> custom_spaces; +}; + +/** + * A heap for allocating managed C++ objects. + */ +class V8_EXPORT CppHeap { + public: + virtual ~CppHeap() = default; + + /** + * \returns the opaque handle for allocating objects using + * `MakeGarbageCollected()`. + */ + cppgc::AllocationHandle& GetAllocationHandle(); + + /** + * \returns the opaque heap handle which may be used to refer to this heap in + * other APIs. Valid as long as the underlying `CppHeap` is alive. + */ + cppgc::HeapHandle& GetHeapHandle(); + + private: + CppHeap() = default; + + friend class internal::CppHeap; +}; + class JSVisitor : public cppgc::Visitor { public: explicit JSVisitor(cppgc::Visitor::Key key) : cppgc::Visitor(key) {} @@ -26,6 +69,64 @@ class JSVisitor : public cppgc::Visitor { virtual void Visit(const TracedReferenceBase& ref) {} }; +/** + * **DO NOT USE: Use the appropriate managed types.** + * + * Consistency helpers that aid in maintaining a consistent internal state of + * the garbage collector. + */ +class JSHeapConsistency final { + public: + using WriteBarrierParams = cppgc::internal::WriteBarrier::Params; + using WriteBarrierType = cppgc::internal::WriteBarrier::Type; + + /** + * Gets the required write barrier type for a specific write. + * + * \param ref The reference being written to. + * \param params Parameters that may be used for actual write barrier calls. + * Only filled if return value indicates that a write barrier is needed. The + * contents of the `params` are an implementation detail. + * \returns whether a write barrier is needed and which barrier to invoke. + */ + static V8_INLINE WriteBarrierType GetWriteBarrierType( + const TracedReferenceBase& ref, WriteBarrierParams& params) { + if (ref.IsEmpty()) return WriteBarrierType::kNone; + return cppgc::internal::WriteBarrier::GetWriteBarrierType(&ref, params); + } + + /** + * Conservative Dijkstra-style write barrier that processes an object if it + * has not yet been processed. + * + * \param params The parameters retrieved from `GetWriteBarrierType()`. + * \param ref The reference being written to. + */ + static V8_INLINE void DijkstraMarkingBarrier(const WriteBarrierParams& params, + cppgc::HeapHandle& heap_handle, + const TracedReferenceBase& ref) { + cppgc::internal::WriteBarrier::CheckParams(WriteBarrierType::kMarking, + params); + DijkstraMarkingBarrierSlow(heap_handle, ref); + } + + /** + * Generational barrier for maintaining consistency when running with multiple + * generations. + * + * \param params The parameters retrieved from `GetWriteBarrierType()`. + * \param ref The reference being written to. + */ + static V8_INLINE void GenerationalBarrier(const WriteBarrierParams& params, + const TracedReferenceBase& ref) {} + + private: + JSHeapConsistency() = delete; + + static void DijkstraMarkingBarrierSlow(cppgc::HeapHandle&, + const TracedReferenceBase& ref); +}; + } // namespace v8 namespace cppgc { diff --git a/deps/v8/include/v8-inspector.h b/deps/v8/include/v8-inspector.h index 86fcf5187701c1..a55518e45930e1 100644 --- a/deps/v8/include/v8-inspector.h +++ b/deps/v8/include/v8-inspector.h @@ -106,6 +106,7 @@ class V8_EXPORT V8StackTrace { virtual int topLineNumber() const = 0; virtual int topColumnNumber() const = 0; virtual StringView topScriptId() const = 0; + virtual int topScriptIdAsInteger() const = 0; virtual StringView topFunctionName() const = 0; virtual ~V8StackTrace() = default; @@ -228,6 +229,10 @@ class V8_EXPORT V8InspectorClient { const StringView& resourceName) { return nullptr; } + + // The caller would defer to generating a random 64 bit integer if + // this method returns 0. + virtual int64_t generateUniqueId() { return 0; } }; // These stack trace ids are intended to be passed between debuggers and be diff --git a/deps/v8/include/v8-internal.h b/deps/v8/include/v8-internal.h index 06846d7005550e..8abbcfb416b2a6 100644 --- a/deps/v8/include/v8-internal.h +++ b/deps/v8/include/v8-internal.h @@ -207,8 +207,10 @@ class Internals { kNumIsolateDataSlots * kApiSystemPointerSize; static const int kIsolateFastCCallCallerPcOffset = kIsolateFastCCallCallerFpOffset + kApiSystemPointerSize; - static const int kIsolateStackGuardOffset = + static const int kIsolateFastApiCallTargetOffset = kIsolateFastCCallCallerPcOffset + kApiSystemPointerSize; + static const int kIsolateStackGuardOffset = + kIsolateFastApiCallTargetOffset + kApiSystemPointerSize; static const int kIsolateRootsOffset = kIsolateStackGuardOffset + 7 * kApiSystemPointerSize; diff --git a/deps/v8/include/v8-metrics.h b/deps/v8/include/v8-metrics.h index 69784dcb0fcbf6..1e2bd50acf6494 100644 --- a/deps/v8/include/v8-metrics.h +++ b/deps/v8/include/v8-metrics.h @@ -10,14 +10,12 @@ namespace v8 { namespace metrics { -// TODO(sartang@microsoft.com): Remove wall_clock_time_in_us. struct WasmModuleDecoded { bool async = false; bool streamed = false; bool success = false; size_t module_size_in_bytes = 0; size_t function_count = 0; - int64_t wall_clock_time_in_us = -1; int64_t wall_clock_duration_in_us = -1; }; @@ -30,7 +28,6 @@ struct WasmModuleCompiled { bool success = false; size_t code_size_in_bytes = 0; size_t liftoff_bailout_count = 0; - int64_t wall_clock_time_in_us = -1; int64_t wall_clock_duration_in_us = -1; }; @@ -38,14 +35,12 @@ struct WasmModuleInstantiated { bool async = false; bool success = false; size_t imported_function_count = 0; - int64_t wall_clock_time_in_us = -1; int64_t wall_clock_duration_in_us = -1; }; struct WasmModuleTieredUp { bool lazy = false; size_t code_size_in_bytes = 0; - int64_t wall_clock_time_in_us = -1; int64_t wall_clock_duration_in_us = -1; }; diff --git a/deps/v8/include/v8-platform.h b/deps/v8/include/v8-platform.h index 1f1497f6ccd7f2..e27d26cb692e46 100644 --- a/deps/v8/include/v8-platform.h +++ b/deps/v8/include/v8-platform.h @@ -225,22 +225,24 @@ class JobHandle { virtual void CancelAndDetach() { Cancel(); } /** - * Returns true if there's currently no work pending and no worker running. - * TODO(etiennep): Deprecate IsCompleted in favor of IsActive once implemented - * by all embedders. + * Returns true if there's any work pending or any worker running. */ - virtual bool IsCompleted() = 0; - virtual bool IsActive() { return !IsCompleted(); } + virtual bool IsActive() = 0; + + // TODO(etiennep): Clean up once all overrides are removed. + V8_DEPRECATED("Use !IsActive() instead.") + virtual bool IsCompleted() { return !IsActive(); } /** * Returns true if associated with a Job and other methods may be called. * Returns false after Join() or Cancel() was called. This may return true * even if no workers are running and IsCompleted() returns true - * TODO(etiennep): Deprecate IsRunning in favor of IsValid once implemented by - * all embedders. */ - virtual bool IsRunning() = 0; - virtual bool IsValid() { return IsRunning(); } + virtual bool IsValid() = 0; + + // TODO(etiennep): Clean up once all overrides are removed. + V8_DEPRECATED("Use IsValid() instead.") + virtual bool IsRunning() { return IsValid(); } /** * Returns true if job priority can be changed. diff --git a/deps/v8/include/v8-version.h b/deps/v8/include/v8-version.h index 8ecd81cb5dad1a..67c1c84b32b84b 100644 --- a/deps/v8/include/v8-version.h +++ b/deps/v8/include/v8-version.h @@ -9,9 +9,9 @@ // NOTE these macros are used by some of the tool scripts and the build // system so their names cannot be changed without changing the scripts. #define V8_MAJOR_VERSION 8 -#define V8_MINOR_VERSION 8 -#define V8_BUILD_NUMBER 278 -#define V8_PATCH_LEVEL 17 +#define V8_MINOR_VERSION 9 +#define V8_BUILD_NUMBER 255 +#define V8_PATCH_LEVEL 19 // Use 1 for candidates and 0 otherwise. // (Boolean macro values are not supported by all preprocessors.) diff --git a/deps/v8/include/v8.h b/deps/v8/include/v8.h index f6426f8edf2bab..e9235d17955089 100644 --- a/deps/v8/include/v8.h +++ b/deps/v8/include/v8.h @@ -48,6 +48,8 @@ class Boolean; class BooleanObject; class CFunction; class Context; +class CppHeap; +struct CppHeapCreateParams; class Data; class Date; class External; @@ -89,6 +91,7 @@ class Private; class Uint32; class Utils; class Value; +class WasmMemoryObject; class WasmModuleObject; template class Local; template @@ -433,7 +436,7 @@ static const int kEmbedderFieldsInWeakCallback = 2; template class WeakCallbackInfo { public: - typedef void (*Callback)(const WeakCallbackInfo& data); + using Callback = void (*)(const WeakCallbackInfo& data); WeakCallbackInfo(Isolate* isolate, T* parameter, void* embedder_fields[kEmbedderFieldsInWeakCallback], @@ -627,7 +630,7 @@ template class PersistentBase { template class NonCopyablePersistentTraits { public: - typedef Persistent > NonCopyablePersistent; + using NonCopyablePersistent = Persistent>; static const bool kResetInDestructor = false; template V8_INLINE static void Copy(const Persistent& source, @@ -644,7 +647,7 @@ class NonCopyablePersistentTraits { */ template struct CopyablePersistentTraits { - typedef Persistent > CopyablePersistent; + using CopyablePersistent = Persistent>; static const bool kResetInDestructor = true; template static V8_INLINE void Copy(const Persistent& source, @@ -806,7 +809,7 @@ class Global : public PersistentBase { /* * For compatibility with Chromium's base::Bind (base::Passed). */ - typedef void MoveOnlyTypeForCPP03; + using MoveOnlyTypeForCPP03 = void; Global(const Global&) = delete; void operator=(const Global&) = delete; @@ -1195,7 +1198,7 @@ class TracedReference : public BasicTracedReference { * handle and may deallocate it. The behavior of accessing a handle * for which the handle scope has been deleted is undefined. */ -class V8_EXPORT HandleScope { +class V8_EXPORT V8_NODISCARD HandleScope { public: explicit HandleScope(Isolate* isolate); @@ -1242,12 +1245,11 @@ class V8_EXPORT HandleScope { friend class Context; }; - /** * A HandleScope which first allocates a handle in the current scope * which will be later filled with the escape value. */ -class V8_EXPORT EscapableHandleScope : public HandleScope { +class V8_EXPORT V8_NODISCARD EscapableHandleScope : public HandleScope { public: explicit EscapableHandleScope(Isolate* isolate); V8_INLINE ~EscapableHandleScope() = default; @@ -1288,7 +1290,7 @@ class V8_EXPORT EscapableHandleScope : public HandleScope { * are allowed. It can be useful for debugging handle leaks. * Handles can be allocated within inner normal HandleScopes. */ -class V8_EXPORT SealHandleScope { +class V8_EXPORT V8_NODISCARD SealHandleScope { public: explicit SealHandleScope(Isolate* isolate); ~SealHandleScope(); @@ -1309,7 +1311,6 @@ class V8_EXPORT SealHandleScope { int prev_sealed_level_; }; - // --- Special objects --- /** @@ -1422,10 +1423,10 @@ class ScriptOriginOptions { */ class ScriptOrigin { public: - V8_INLINE ScriptOrigin( - Local resource_name, - Local resource_line_offset = Local(), - Local resource_column_offset = Local(), + V8_DEPRECATE_SOON("Use constructor with primitvie C++ types") + V8_INLINE explicit ScriptOrigin( + Local resource_name, Local resource_line_offset, + Local resource_column_offset, Local resource_is_shared_cross_origin = Local(), Local script_id = Local(), Local source_map_url = Local(), @@ -1433,21 +1434,36 @@ class ScriptOrigin { Local is_wasm = Local(), Local is_module = Local(), Local host_defined_options = Local()); + V8_INLINE explicit ScriptOrigin( + Local resource_name, int resource_line_offset = 0, + int resource_column_offset = 0, + bool resource_is_shared_cross_origin = false, int script_id = -1, + Local source_map_url = Local(), + bool resource_is_opaque = false, bool is_wasm = false, + bool is_module = false, + Local host_defined_options = Local()); V8_INLINE Local ResourceName() const; + V8_DEPRECATE_SOON("Use getter with primitvie C++ types.") V8_INLINE Local ResourceLineOffset() const; + V8_DEPRECATE_SOON("Use getter with primitvie C++ types.") V8_INLINE Local ResourceColumnOffset() const; + V8_DEPRECATE_SOON("Use getter with primitvie C++ types.") V8_INLINE Local ScriptID() const; + V8_INLINE int LineOffset() const; + V8_INLINE int ColumnOffset() const; + V8_INLINE int ScriptId() const; V8_INLINE Local SourceMapUrl() const; V8_INLINE Local HostDefinedOptions() const; V8_INLINE ScriptOriginOptions Options() const { return options_; } private: + Isolate* isolate_; Local resource_name_; - Local resource_line_offset_; - Local resource_column_offset_; + int resource_line_offset_; + int resource_column_offset_; ScriptOriginOptions options_; - Local script_id_; + int script_id_; Local source_map_url_; Local host_defined_options_; }; @@ -1506,6 +1522,43 @@ class V8_EXPORT Location { int column_number_; }; +/** + * A fixed-sized array with elements of type Data. + */ +class V8_EXPORT FixedArray : public Data { + public: + int Length() const; + Local Get(Local context, int i) const; +}; + +class V8_EXPORT ModuleRequest : public Data { + public: + /** + * Returns the module specifier for this ModuleRequest. + */ + Local GetSpecifier() const; + + /** + * Returns the source code offset of this module request. + * Use Module::SourceOffsetToLocation to convert this to line/column numbers. + */ + int GetSourceOffset() const; + + /** + * Contains the import assertions for this request in the form: + * [key1, value1, source_offset1, key2, value2, source_offset2, ...]. + * The keys and values are of type v8::String, and the source offsets are of + * type Int32. Use Module::SourceOffsetToLocation to convert the source + * offsets to Locations with line/column numbers. + */ + Local GetImportAssertions() const; + + V8_INLINE static ModuleRequest* Cast(Data* data); + + private: + static void CheckCast(Data* obj); +}; + /** * A compiled JavaScript module. */ @@ -1540,28 +1593,48 @@ class V8_EXPORT Module : public Data { /** * Returns the number of modules requested by this module. */ + V8_DEPRECATE_SOON("Use Module::GetModuleRequests() and FixedArray::Length().") int GetModuleRequestsLength() const; /** * Returns the ith module specifier in this module. * i must be < GetModuleRequestsLength() and >= 0. */ + V8_DEPRECATE_SOON( + "Use Module::GetModuleRequests() and ModuleRequest::GetSpecifier().") Local GetModuleRequest(int i) const; /** * Returns the source location (line number and column number) of the ith * module specifier's first occurrence in this module. */ + V8_DEPRECATE_SOON( + "Use Module::GetModuleRequests(), ModuleRequest::GetSourceOffset(), and " + "Module::SourceOffsetToLocation().") Location GetModuleRequestLocation(int i) const; + /** + * Returns the ModuleRequests for this module. + */ + Local GetModuleRequests() const; + + /** + * For the given source text offset in this module, returns the corresponding + * Location with line and column numbers. + */ + Location SourceOffsetToLocation(int offset) const; + /** * Returns the identity hash for this object. */ int GetIdentityHash() const; - typedef MaybeLocal (*ResolveCallback)(Local context, - Local specifier, - Local referrer); + using ResolveCallback V8_DEPRECATE_SOON("Use ResolveModuleCallback") = + MaybeLocal (*)(Local context, Local specifier, + Local referrer); + using ResolveModuleCallback = MaybeLocal (*)( + Local context, Local specifier, + Local import_assertions, Local referrer); /** * Instantiates the module and its dependencies. @@ -1570,8 +1643,13 @@ class V8_EXPORT Module : public Data { * instantiation. (In the case where the callback throws an exception, that * exception is propagated.) */ + V8_DEPRECATE_SOON( + "Use the version of InstantiateModule that takes a ResolveModuleCallback " + "parameter") V8_WARN_UNUSED_RESULT Maybe InstantiateModule(Local context, ResolveCallback callback); + V8_WARN_UNUSED_RESULT Maybe InstantiateModule( + Local context, ResolveModuleCallback callback); /** * Evaluates the module and its dependencies. @@ -1630,8 +1708,8 @@ class V8_EXPORT Module : public Data { * exception was thrown) and return an empy MaybeLocal to indicate falure * (where an exception was thrown). */ - typedef MaybeLocal (*SyntheticModuleEvaluationSteps)( - Local context, Local module); + using SyntheticModuleEvaluationSteps = + MaybeLocal (*)(Local context, Local module); /** * Creates a new SyntheticModule with the specified export names, where @@ -1654,7 +1732,7 @@ class V8_EXPORT Module : public Data { */ V8_WARN_UNUSED_RESULT Maybe SetSyntheticModuleExport( Isolate* isolate, Local export_name, Local export_value); - V8_DEPRECATE_SOON( + V8_DEPRECATED( "Use the preceding SetSyntheticModuleExport with an Isolate parameter, " "instead of the one that follows. The former will throw a runtime " "error if called for an export that doesn't exist (as per spec); " @@ -1694,6 +1772,7 @@ class V8_EXPORT Script { Local GetUnboundScript(); }; +enum class ScriptType { kClassic, kModule }; /** * For compiling scripts. @@ -1746,8 +1825,8 @@ class V8_EXPORT ScriptCompiler { // Source takes ownership of CachedData. V8_INLINE Source(Local source_string, const ScriptOrigin& origin, CachedData* cached_data = nullptr); - V8_INLINE Source(Local source_string, - CachedData* cached_data = nullptr); + V8_INLINE explicit Source(Local source_string, + CachedData* cached_data = nullptr); V8_INLINE ~Source(); // Ownership of the CachedData or its buffers is *not* transferred to the @@ -1768,8 +1847,8 @@ class V8_EXPORT ScriptCompiler { // Origin information Local resource_name; - Local resource_line_offset; - Local resource_column_offset; + int resource_line_offset; + int resource_column_offset; ScriptOriginOptions resource_options; Local source_map_url; Local host_defined_options; @@ -1839,11 +1918,9 @@ class V8_EXPORT ScriptCompiler { public: enum Encoding { ONE_BYTE, TWO_BYTE, UTF8 }; -#if defined(_MSC_VER) && _MSC_VER >= 1910 /* Disable on VS2015 */ - V8_DEPRECATE_SOON( + V8_DEPRECATED( "This class takes ownership of source_stream, so use the constructor " "taking a unique_ptr to make these semantics clearer") -#endif StreamedSource(ExternalSourceStream* source_stream, Encoding encoding); StreamedSource(std::unique_ptr source_stream, Encoding encoding); @@ -1948,12 +2025,13 @@ class V8_EXPORT ScriptCompiler { * This API allows to start the streaming with as little data as possible, and * the remaining data (for example, the ScriptOrigin) is passed to Compile. */ - V8_DEPRECATE_SOON("Use ScriptCompiler::StartStreamingScript instead.") + V8_DEPRECATED("Use ScriptCompiler::StartStreaming instead.") static ScriptStreamingTask* StartStreamingScript( Isolate* isolate, StreamedSource* source, CompileOptions options = kNoCompileOptions); - static ScriptStreamingTask* StartStreaming(Isolate* isolate, - StreamedSource* source); + static ScriptStreamingTask* StartStreaming( + Isolate* isolate, StreamedSource* source, + ScriptType type = ScriptType::kClassic); /** * Compiles a streamed script (bound to current context). @@ -1998,6 +2076,17 @@ class V8_EXPORT ScriptCompiler { CompileOptions options = kNoCompileOptions, NoCacheReason no_cache_reason = kNoCacheNoReason); + /** + * Compiles a streamed module script. + * + * This can only be called after the streaming has finished + * (ScriptStreamingTask has been run). V8 doesn't construct the source string + * during streaming, so the embedder needs to pass the full source here. + */ + static V8_WARN_UNUSED_RESULT MaybeLocal CompileModule( + Local context, StreamedSource* v8_source, + Local full_source_string, const ScriptOrigin& origin); + /** * Compile a function for a given context. This is equivalent to running * @@ -2873,6 +2962,11 @@ class V8_EXPORT Value : public Data { */ bool IsProxy() const; + /** + * Returns true if this value is a WasmMemoryObject. + */ + bool IsWasmMemoryObject() const; + /** * Returns true if this value is a WasmModuleObject. */ @@ -2995,11 +3089,11 @@ class V8_EXPORT Primitive : public Value { }; class V8_EXPORT Boolean : public Primitive { public: bool Value() const; - V8_INLINE static Boolean* Cast(v8::Value* obj); + V8_INLINE static Boolean* Cast(v8::Data* data); V8_INLINE static Local New(Isolate* isolate, bool value); private: - static void CheckCast(v8::Value* obj); + static void CheckCast(v8::Data* that); }; @@ -3017,10 +3111,10 @@ class V8_EXPORT Name : public Primitive { */ int GetIdentityHash(); - V8_INLINE static Name* Cast(Value* obj); + V8_INLINE static Name* Cast(Data* data); private: - static void CheckCast(Value* obj); + static void CheckCast(Data* that); }; /** @@ -3133,14 +3227,6 @@ class V8_EXPORT String : public Name { */ V8_INLINE static Local Empty(Isolate* isolate); - /** - * Returns true if the string is external two-byte. - * - */ - V8_DEPRECATED( - "Use String::IsExternalTwoByte() or String::IsExternalOneByte()") - bool IsExternal() const; - /** * Returns true if the string is both external and two-byte. */ @@ -3276,7 +3362,7 @@ class V8_EXPORT String : public Name { */ const ExternalOneByteStringResource* GetExternalOneByteStringResource() const; - V8_INLINE static String* Cast(v8::Value* obj); + V8_INLINE static String* Cast(v8::Data* data); /** * Allocates a new string from a UTF-8 literal. This is equivalent to calling @@ -3433,7 +3519,7 @@ class V8_EXPORT String : public Name { const char* literal, NewStringType type, int length); - static void CheckCast(v8::Value* obj); + static void CheckCast(v8::Data* that); }; // Zero-length string specialization (templated string size includes @@ -3454,7 +3540,7 @@ class V8_EXPORT Symbol : public Name { */ Local Description() const; - V8_DEPRECATE_SOON("Use Symbol::Description()") + V8_DEPRECATED("Use Symbol::Description()") Local Name() const { return Description(); } /** @@ -3493,11 +3579,11 @@ class V8_EXPORT Symbol : public Name { static Local GetToStringTag(Isolate* isolate); static Local GetUnscopables(Isolate* isolate); - V8_INLINE static Symbol* Cast(Value* obj); + V8_INLINE static Symbol* Cast(Data* data); private: Symbol(); - static void CheckCast(Value* obj); + static void CheckCast(Data* that); }; @@ -3546,10 +3632,11 @@ class V8_EXPORT Number : public Primitive { public: double Value() const; static Local New(Isolate* isolate, double value); - V8_INLINE static Number* Cast(v8::Value* obj); + V8_INLINE static Number* Cast(v8::Data* data); + private: Number(); - static void CheckCast(v8::Value* obj); + static void CheckCast(v8::Data* that); }; @@ -3561,10 +3648,11 @@ class V8_EXPORT Integer : public Number { static Local New(Isolate* isolate, int32_t value); static Local NewFromUnsigned(Isolate* isolate, uint32_t value); int64_t Value() const; - V8_INLINE static Integer* Cast(v8::Value* obj); + V8_INLINE static Integer* Cast(v8::Data* data); + private: Integer(); - static void CheckCast(v8::Value* obj); + static void CheckCast(v8::Data* that); }; @@ -3574,11 +3662,11 @@ class V8_EXPORT Integer : public Number { class V8_EXPORT Int32 : public Integer { public: int32_t Value() const; - V8_INLINE static Int32* Cast(v8::Value* obj); + V8_INLINE static Int32* Cast(v8::Data* data); private: Int32(); - static void CheckCast(v8::Value* obj); + static void CheckCast(v8::Data* that); }; @@ -3588,11 +3676,11 @@ class V8_EXPORT Int32 : public Integer { class V8_EXPORT Uint32 : public Integer { public: uint32_t Value() const; - V8_INLINE static Uint32* Cast(v8::Value* obj); + V8_INLINE static Uint32* Cast(v8::Data* data); private: Uint32(); - static void CheckCast(v8::Value* obj); + static void CheckCast(v8::Data* that); }; /** @@ -3643,11 +3731,11 @@ class V8_EXPORT BigInt : public Primitive { */ void ToWordsArray(int* sign_bit, int* word_count, uint64_t* words) const; - V8_INLINE static BigInt* Cast(v8::Value* obj); + V8_INLINE static BigInt* Cast(v8::Data* data); private: BigInt(); - static void CheckCast(v8::Value* obj); + static void CheckCast(v8::Data* that); }; /** @@ -3669,23 +3757,17 @@ enum PropertyAttribute { * setting|getting a particular property. See Object and ObjectTemplate's * method SetAccessor. */ -typedef void (*AccessorGetterCallback)( - Local property, - const PropertyCallbackInfo& info); -typedef void (*AccessorNameGetterCallback)( - Local property, - const PropertyCallbackInfo& info); - - -typedef void (*AccessorSetterCallback)( - Local property, - Local value, - const PropertyCallbackInfo& info); -typedef void (*AccessorNameSetterCallback)( - Local property, - Local value, - const PropertyCallbackInfo& info); +using AccessorGetterCallback = + void (*)(Local property, const PropertyCallbackInfo& info); +using AccessorNameGetterCallback = + void (*)(Local property, const PropertyCallbackInfo& info); +using AccessorSetterCallback = void (*)(Local property, + Local value, + const PropertyCallbackInfo& info); +using AccessorNameSetterCallback = + void (*)(Local property, Local value, + const PropertyCallbackInfo& info); /** * Access control specifications. @@ -4537,8 +4619,7 @@ class PropertyCallbackInfo { internal::Address* args_; }; - -typedef void (*FunctionCallback)(const FunctionCallbackInfo& info); +using FunctionCallback = void (*)(const FunctionCallbackInfo& info); enum class ConstructorBehavior { kThrow, kAllow }; @@ -4899,6 +4980,22 @@ class V8_EXPORT CompiledWasmModule { const std::string source_url_; }; +// An instance of WebAssembly.Memory. +class V8_EXPORT WasmMemoryObject : public Object { + public: + WasmMemoryObject() = delete; + + /** + * Returns underlying ArrayBuffer. + */ + Local Buffer(); + + V8_INLINE static WasmMemoryObject* Cast(Value* obj); + + private: + static void CheckCast(Value* object); +}; + // An instance of WebAssembly.Module. class V8_EXPORT WasmModuleObject : public Object { public: @@ -6239,8 +6336,8 @@ class V8_EXPORT Template : public Data { * * See also `ObjectTemplate::SetHandler`. */ -typedef void (*GenericNamedPropertyGetterCallback)( - Local property, const PropertyCallbackInfo& info); +using GenericNamedPropertyGetterCallback = + void (*)(Local property, const PropertyCallbackInfo& info); /** * Interceptor for set requests on an object. @@ -6263,9 +6360,9 @@ typedef void (*GenericNamedPropertyGetterCallback)( * See also * `ObjectTemplate::SetHandler.` */ -typedef void (*GenericNamedPropertySetterCallback)( - Local property, Local value, - const PropertyCallbackInfo& info); +using GenericNamedPropertySetterCallback = + void (*)(Local property, Local value, + const PropertyCallbackInfo& info); /** * Intercepts all requests that query the attributes of the @@ -6288,8 +6385,8 @@ typedef void (*GenericNamedPropertySetterCallback)( * See also * `ObjectTemplate::SetHandler.` */ -typedef void (*GenericNamedPropertyQueryCallback)( - Local property, const PropertyCallbackInfo& info); +using GenericNamedPropertyQueryCallback = + void (*)(Local property, const PropertyCallbackInfo& info); /** * Interceptor for delete requests on an object. @@ -6312,8 +6409,8 @@ typedef void (*GenericNamedPropertyQueryCallback)( * * See also `ObjectTemplate::SetHandler.` */ -typedef void (*GenericNamedPropertyDeleterCallback)( - Local property, const PropertyCallbackInfo& info); +using GenericNamedPropertyDeleterCallback = + void (*)(Local property, const PropertyCallbackInfo& info); /** * Returns an array containing the names of the properties the named @@ -6321,8 +6418,8 @@ typedef void (*GenericNamedPropertyDeleterCallback)( * * Note: The values in the array must be of type v8::Name. */ -typedef void (*GenericNamedPropertyEnumeratorCallback)( - const PropertyCallbackInfo& info); +using GenericNamedPropertyEnumeratorCallback = + void (*)(const PropertyCallbackInfo& info); /** * Interceptor for defineProperty requests on an object. @@ -6344,9 +6441,9 @@ typedef void (*GenericNamedPropertyEnumeratorCallback)( * * See also `ObjectTemplate::SetHandler`. */ -typedef void (*GenericNamedPropertyDefinerCallback)( - Local property, const PropertyDescriptor& desc, - const PropertyCallbackInfo& info); +using GenericNamedPropertyDefinerCallback = + void (*)(Local property, const PropertyDescriptor& desc, + const PropertyCallbackInfo& info); /** * Interceptor for getOwnPropertyDescriptor requests on an object. @@ -6367,37 +6464,33 @@ typedef void (*GenericNamedPropertyDefinerCallback)( * * See also `ObjectTemplate::SetHandler`. */ -typedef void (*GenericNamedPropertyDescriptorCallback)( - Local property, const PropertyCallbackInfo& info); +using GenericNamedPropertyDescriptorCallback = + void (*)(Local property, const PropertyCallbackInfo& info); /** * See `v8::GenericNamedPropertyGetterCallback`. */ -typedef void (*IndexedPropertyGetterCallback)( - uint32_t index, - const PropertyCallbackInfo& info); +using IndexedPropertyGetterCallback = + void (*)(uint32_t index, const PropertyCallbackInfo& info); /** * See `v8::GenericNamedPropertySetterCallback`. */ -typedef void (*IndexedPropertySetterCallback)( - uint32_t index, - Local value, - const PropertyCallbackInfo& info); +using IndexedPropertySetterCallback = + void (*)(uint32_t index, Local value, + const PropertyCallbackInfo& info); /** * See `v8::GenericNamedPropertyQueryCallback`. */ -typedef void (*IndexedPropertyQueryCallback)( - uint32_t index, - const PropertyCallbackInfo& info); +using IndexedPropertyQueryCallback = + void (*)(uint32_t index, const PropertyCallbackInfo& info); /** * See `v8::GenericNamedPropertyDeleterCallback`. */ -typedef void (*IndexedPropertyDeleterCallback)( - uint32_t index, - const PropertyCallbackInfo& info); +using IndexedPropertyDeleterCallback = + void (*)(uint32_t index, const PropertyCallbackInfo& info); /** * Returns an array containing the indices of the properties the indexed @@ -6405,21 +6498,21 @@ typedef void (*IndexedPropertyDeleterCallback)( * * Note: The values in the array must be uint32_t. */ -typedef void (*IndexedPropertyEnumeratorCallback)( - const PropertyCallbackInfo& info); +using IndexedPropertyEnumeratorCallback = + void (*)(const PropertyCallbackInfo& info); /** * See `v8::GenericNamedPropertyDefinerCallback`. */ -typedef void (*IndexedPropertyDefinerCallback)( - uint32_t index, const PropertyDescriptor& desc, - const PropertyCallbackInfo& info); +using IndexedPropertyDefinerCallback = + void (*)(uint32_t index, const PropertyDescriptor& desc, + const PropertyCallbackInfo& info); /** * See `v8::GenericNamedPropertyDescriptorCallback`. */ -typedef void (*IndexedPropertyDescriptorCallback)( - uint32_t index, const PropertyCallbackInfo& info); +using IndexedPropertyDescriptorCallback = + void (*)(uint32_t index, const PropertyCallbackInfo& info); /** * Access type specification. @@ -6437,9 +6530,9 @@ enum AccessType { * Returns true if the given context should be allowed to access the given * object. */ -typedef bool (*AccessCheckCallback)(Local accessing_context, - Local accessed_object, - Local data); +using AccessCheckCallback = bool (*)(Local accessing_context, + Local accessed_object, + Local data); /** * A FunctionTemplate is used to create functions at runtime. There @@ -7230,36 +7323,11 @@ class V8_EXPORT ResourceConstraints { initial_young_generation_size_ = initial_size; } - /** - * Deprecated functions. Do not use in new code. - */ - V8_DEPRECATED("Use code_range_size_in_bytes.") - size_t code_range_size() const { return code_range_size_ / kMB; } - V8_DEPRECATED("Use set_code_range_size_in_bytes.") - void set_code_range_size(size_t limit_in_mb) { - code_range_size_ = limit_in_mb * kMB; - } - V8_DEPRECATED("Use max_young_generation_size_in_bytes.") - size_t max_semi_space_size_in_kb() const; - V8_DEPRECATED("Use set_max_young_generation_size_in_bytes.") - void set_max_semi_space_size_in_kb(size_t limit_in_kb); - V8_DEPRECATED("Use max_old_generation_size_in_bytes.") - size_t max_old_space_size() const { return max_old_generation_size_ / kMB; } - V8_DEPRECATED("Use set_max_old_generation_size_in_bytes.") - void set_max_old_space_size(size_t limit_in_mb) { - max_old_generation_size_ = limit_in_mb * kMB; - } - V8_DEPRECATED("Zone does not pool memory any more.") - size_t max_zone_pool_size() const { return max_zone_pool_size_; } - V8_DEPRECATED("Zone does not pool memory any more.") - void set_max_zone_pool_size(size_t bytes) { max_zone_pool_size_ = bytes; } - private: static constexpr size_t kMB = 1048576u; size_t code_range_size_ = 0; size_t max_old_generation_size_ = 0; size_t max_young_generation_size_ = 0; - size_t max_zone_pool_size_ = 0; size_t initial_old_generation_size_ = 0; size_t initial_young_generation_size_ = 0; uint32_t* stack_limit_ = nullptr; @@ -7268,19 +7336,18 @@ class V8_EXPORT ResourceConstraints { // --- Exceptions --- +using FatalErrorCallback = void (*)(const char* location, const char* message); -typedef void (*FatalErrorCallback)(const char* location, const char* message); - -typedef void (*OOMErrorCallback)(const char* location, bool is_heap_oom); +using OOMErrorCallback = void (*)(const char* location, bool is_heap_oom); -typedef void (*DcheckErrorCallback)(const char* file, int line, - const char* message); +using DcheckErrorCallback = void (*)(const char* file, int line, + const char* message); -typedef void (*MessageCallback)(Local message, Local data); +using MessageCallback = void (*)(Local message, Local data); // --- Tracing --- -typedef void (*LogEventCallback)(const char* name, int event); +using LogEventCallback = void (*)(const char* name, int event); /** * Create new error objects by calling the corresponding error object @@ -7314,14 +7381,12 @@ class V8_EXPORT Exception { // --- Counters Callbacks --- -typedef int* (*CounterLookupCallback)(const char* name); +using CounterLookupCallback = int* (*)(const char* name); -typedef void* (*CreateHistogramCallback)(const char* name, - int min, - int max, - size_t buckets); +using CreateHistogramCallback = void* (*)(const char* name, int min, int max, + size_t buckets); -typedef void (*AddHistogramSampleCallback)(void* histogram, int sample); +using AddHistogramSampleCallback = void (*)(void* histogram, int sample); // --- Crashkeys Callback --- enum class CrashKeyId { @@ -7332,11 +7397,11 @@ enum class CrashKeyId { kDumpType, }; -typedef void (*AddCrashKeyCallback)(CrashKeyId id, const std::string& value); +using AddCrashKeyCallback = void (*)(CrashKeyId id, const std::string& value); // --- Enter/Leave Script Callback --- -typedef void (*BeforeCallEnteredCallback)(Isolate*); -typedef void (*CallCompletedCallback)(Isolate*); +using BeforeCallEnteredCallback = void (*)(Isolate*); +using CallCompletedCallback = void (*)(Isolate*); /** * HostImportModuleDynamicallyCallback is called when we require the @@ -7358,7 +7423,7 @@ typedef void (*CallCompletedCallback)(Isolate*); * fails (e.g. due to stack overflow), the embedder must propagate * that exception by returning an empty MaybeLocal. */ -typedef MaybeLocal (*HostImportModuleDynamicallyCallback)( +using HostImportModuleDynamicallyCallback = MaybeLocal (*)( Local context, Local referrer, Local specifier); @@ -7372,9 +7437,9 @@ typedef MaybeLocal (*HostImportModuleDynamicallyCallback)( * The embedder should use v8::Object::CreateDataProperty to add properties on * the meta object. */ -typedef void (*HostInitializeImportMetaObjectCallback)(Local context, - Local module, - Local meta); +using HostInitializeImportMetaObjectCallback = void (*)(Local context, + Local module, + Local meta); /** * PrepareStackTraceCallback is called when the stack property of an error is @@ -7383,9 +7448,9 @@ typedef void (*HostInitializeImportMetaObjectCallback)(Local context, * |sites| is an array of call sites, specified in * https://v8.dev/docs/stack-trace-api */ -typedef MaybeLocal (*PrepareStackTraceCallback)(Local context, - Local error, - Local sites); +using PrepareStackTraceCallback = MaybeLocal (*)(Local context, + Local error, + Local sites); /** * PromiseHook with type kInit is called when a new promise is @@ -7405,8 +7470,8 @@ typedef MaybeLocal (*PrepareStackTraceCallback)(Local context, */ enum class PromiseHookType { kInit, kResolve, kBefore, kAfter }; -typedef void (*PromiseHook)(PromiseHookType type, Local promise, - Local parent); +using PromiseHook = void (*)(PromiseHookType type, Local promise, + Local parent); // --- Promise Reject Callback --- enum PromiseRejectEvent { @@ -7432,12 +7497,11 @@ class PromiseRejectMessage { Local value_; }; -typedef void (*PromiseRejectCallback)(PromiseRejectMessage message); +using PromiseRejectCallback = void (*)(PromiseRejectMessage message); // --- Microtasks Callbacks --- -typedef void (*MicrotasksCompletedCallback)(Isolate*); -typedef void (*MicrotasksCompletedCallbackWithData)(Isolate*, void*); -typedef void (*MicrotaskCallback)(void* data); +using MicrotasksCompletedCallbackWithData = void (*)(Isolate*, void*); +using MicrotaskCallback = void (*)(void* data); /** * Policy for running microtasks: @@ -7541,7 +7605,7 @@ class V8_EXPORT MicrotaskQueue { * kDoNotRunMicrotasks should be used to annotate calls not intended to trigger * microtasks. */ -class V8_EXPORT MicrotasksScope { +class V8_EXPORT V8_NODISCARD MicrotasksScope { public: enum Type { kRunMicrotasks, kDoNotRunMicrotasks }; @@ -7574,11 +7638,9 @@ class V8_EXPORT MicrotasksScope { bool run_; }; - // --- Failed Access Check Callback --- -typedef void (*FailedAccessCheckCallback)(Local target, - AccessType type, - Local data); +using FailedAccessCheckCallback = void (*)(Local target, + AccessType type, Local data); // --- AllowCodeGenerationFromStrings callbacks --- @@ -7586,8 +7648,8 @@ typedef void (*FailedAccessCheckCallback)(Local target, * Callback to check if code generation from strings is allowed. See * Context::AllowCodeGenerationFromStrings. */ -typedef bool (*AllowCodeGenerationFromStringsCallback)(Local context, - Local source); +using AllowCodeGenerationFromStringsCallback = bool (*)(Local context, + Local source); struct ModifyCodeGenerationFromStringsResult { // If true, proceed with the codegen algorithm. Otherwise, block it. @@ -7602,36 +7664,36 @@ struct ModifyCodeGenerationFromStringsResult { * Callback to check if codegen is allowed from a source object, and convert * the source to string if necessary. See: ModifyCodeGenerationFromStrings. */ -typedef ModifyCodeGenerationFromStringsResult ( - *ModifyCodeGenerationFromStringsCallback)(Local context, +using ModifyCodeGenerationFromStringsCallback = + ModifyCodeGenerationFromStringsResult (*)(Local context, Local source); -typedef ModifyCodeGenerationFromStringsResult ( - *ModifyCodeGenerationFromStringsCallback2)(Local context, - Local source, - bool is_code_like); +using ModifyCodeGenerationFromStringsCallback2 = + ModifyCodeGenerationFromStringsResult (*)(Local context, + Local source, + bool is_code_like); // --- WebAssembly compilation callbacks --- -typedef bool (*ExtensionCallback)(const FunctionCallbackInfo&); +using ExtensionCallback = bool (*)(const FunctionCallbackInfo&); -typedef bool (*AllowWasmCodeGenerationCallback)(Local context, - Local source); +using AllowWasmCodeGenerationCallback = bool (*)(Local context, + Local source); // --- Callback for APIs defined on v8-supported objects, but implemented // by the embedder. Example: WebAssembly.{compile|instantiate}Streaming --- -typedef void (*ApiImplementationCallback)(const FunctionCallbackInfo&); +using ApiImplementationCallback = void (*)(const FunctionCallbackInfo&); // --- Callback for WebAssembly.compileStreaming --- -typedef void (*WasmStreamingCallback)(const FunctionCallbackInfo&); +using WasmStreamingCallback = void (*)(const FunctionCallbackInfo&); // --- Callback for checking if WebAssembly threads are enabled --- -typedef bool (*WasmThreadsEnabledCallback)(Local context); +using WasmThreadsEnabledCallback = bool (*)(Local context); // --- Callback for loading source map file for Wasm profiling support -typedef Local (*WasmLoadSourceMapCallback)(Isolate* isolate, - const char* name); +using WasmLoadSourceMapCallback = Local (*)(Isolate* isolate, + const char* name); // --- Callback for checking if WebAssembly Simd is enabled --- -typedef bool (*WasmSimdEnabledCallback)(Local context); +using WasmSimdEnabledCallback = bool (*)(Local context); // --- Garbage Collection Callbacks --- @@ -7675,9 +7737,9 @@ enum GCCallbackFlags { kGCCallbackScheduleIdleGarbageCollection = 1 << 6, }; -typedef void (*GCCallback)(GCType type, GCCallbackFlags flags); +using GCCallback = void (*)(GCType type, GCCallbackFlags flags); -typedef void (*InterruptCallback)(Isolate* isolate, void* data); +using InterruptCallback = void (*)(Isolate* isolate, void* data); /** * This callback is invoked when the heap size is close to the heap limit and @@ -7686,8 +7748,8 @@ typedef void (*InterruptCallback)(Isolate* isolate, void* data); * than the current_heap_limit. The initial heap limit is the limit that was * set after heap setup. */ -typedef size_t (*NearHeapLimitCallback)(void* data, size_t current_heap_limit, - size_t initial_heap_limit); +using NearHeapLimitCallback = size_t (*)(void* data, size_t current_heap_limit, + size_t initial_heap_limit); /** * Collection of shared per-process V8 memory information. @@ -7941,14 +8003,14 @@ enum JitCodeEventOptions { * * \param event code add, move or removal event. */ -typedef void (*JitCodeEventHandler)(const JitCodeEvent* event); +using JitCodeEventHandler = void (*)(const JitCodeEvent* event); /** * Callback function passed to SetUnhandledExceptionCallback. */ #if defined(V8_OS_WIN) -typedef int (*UnhandledExceptionCallback)( - _EXCEPTION_POINTERS* exception_pointers); +using UnhandledExceptionCallback = + int (*)(_EXCEPTION_POINTERS* exception_pointers); #endif /** @@ -8175,8 +8237,8 @@ class V8_EXPORT EmbedderHeapTracer { * serialized verbatim. */ struct SerializeInternalFieldsCallback { - typedef StartupData (*CallbackFunction)(Local holder, int index, - void* data); + using CallbackFunction = StartupData (*)(Local holder, int index, + void* data); SerializeInternalFieldsCallback(CallbackFunction function = nullptr, void* data_arg = nullptr) : callback(function), data(data_arg) {} @@ -8185,15 +8247,15 @@ struct SerializeInternalFieldsCallback { }; // Note that these fields are called "internal fields" in the API and called // "embedder fields" within V8. -typedef SerializeInternalFieldsCallback SerializeEmbedderFieldsCallback; +using SerializeEmbedderFieldsCallback = SerializeInternalFieldsCallback; /** * Callback and supporting data used to implement embedder logic to deserialize * internal fields. */ struct DeserializeInternalFieldsCallback { - typedef void (*CallbackFunction)(Local holder, int index, - StartupData payload, void* data); + using CallbackFunction = void (*)(Local holder, int index, + StartupData payload, void* data); DeserializeInternalFieldsCallback(CallbackFunction function = nullptr, void* data_arg = nullptr) : callback(function), data(data_arg) {} @@ -8201,7 +8263,7 @@ struct DeserializeInternalFieldsCallback { void* data); void* data; }; -typedef DeserializeInternalFieldsCallback DeserializeEmbedderFieldsCallback; +using DeserializeEmbedderFieldsCallback = DeserializeInternalFieldsCallback; /** * Controls how the default MeasureMemoryDelegate reports the result of @@ -8277,26 +8339,15 @@ class V8_EXPORT Isolate { /** * Initial configuration parameters for a new Isolate. */ - struct CreateParams { - CreateParams() - : code_event_handler(nullptr), - snapshot_blob(nullptr), - counter_lookup_callback(nullptr), - create_histogram_callback(nullptr), - add_histogram_sample_callback(nullptr), - array_buffer_allocator(nullptr), - array_buffer_allocator_shared(), - external_references(nullptr), - allow_atomics_wait(true), - only_terminate_in_safe_scope(false), - embedder_wrapper_type_index(-1), - embedder_wrapper_object_index(-1) {} + struct V8_EXPORT CreateParams { + CreateParams(); + ~CreateParams(); /** * Allows the host application to provide the address of a function that is * notified each time code is added, moved or removed. */ - JitCodeEventHandler code_event_handler; + JitCodeEventHandler code_event_handler = nullptr; /** * ResourceConstraints to use for the new Isolate. @@ -8306,14 +8357,13 @@ class V8_EXPORT Isolate { /** * Explicitly specify a startup snapshot blob. The embedder owns the blob. */ - StartupData* snapshot_blob; - + StartupData* snapshot_blob = nullptr; /** * Enables the host application to provide a mechanism for recording * statistics counters. */ - CounterLookupCallback counter_lookup_callback; + CounterLookupCallback counter_lookup_callback = nullptr; /** * Enables the host application to provide a mechanism for recording @@ -8321,8 +8371,8 @@ class V8_EXPORT Isolate { * histogram which will later be passed to the AddHistogramSample * function. */ - CreateHistogramCallback create_histogram_callback; - AddHistogramSampleCallback add_histogram_sample_callback; + CreateHistogramCallback create_histogram_callback = nullptr; + AddHistogramSampleCallback add_histogram_sample_callback = nullptr; /** * The ArrayBuffer::Allocator to use for allocating and freeing the backing @@ -8333,7 +8383,7 @@ class V8_EXPORT Isolate { * to the allocator, in order to facilitate lifetime * management for the allocator instance. */ - ArrayBuffer::Allocator* array_buffer_allocator; + ArrayBuffer::Allocator* array_buffer_allocator = nullptr; std::shared_ptr array_buffer_allocator_shared; /** @@ -8342,34 +8392,57 @@ class V8_EXPORT Isolate { * deserialization. This array and its content must stay valid for the * entire lifetime of the isolate. */ - const intptr_t* external_references; + const intptr_t* external_references = nullptr; /** * Whether calling Atomics.wait (a function that may block) is allowed in * this isolate. This can also be configured via SetAllowAtomicsWait. */ - bool allow_atomics_wait; + bool allow_atomics_wait = true; /** * Termination is postponed when there is no active SafeForTerminationScope. */ - bool only_terminate_in_safe_scope; + bool only_terminate_in_safe_scope = false; /** * The following parameters describe the offsets for addressing type info * for wrapped API objects and are used by the fast C API * (for details see v8-fast-api-calls.h). */ - int embedder_wrapper_type_index; - int embedder_wrapper_object_index; - }; + int embedder_wrapper_type_index = -1; + int embedder_wrapper_object_index = -1; + + /** + * If parameters are set, V8 creates a managed C++ heap as extension to its + * JavaScript heap. + * + * See v8::Isolate::GetCppHeap() for working with the heap. + * + * This is an experimental feature and may still change significantly. + */ + std::shared_ptr cpp_heap_params; + /** + * This list is provided by the embedder to indicate which import assertions + * they want to handle. Only import assertions whose keys are present in + * supported_import_assertions will be included in the import assertions + * lists of ModuleRequests that will be passed to the embedder. If + * supported_import_assertions is left empty, then the embedder will not + * receive any import assertions. + * + * This corresponds to the list returned by the HostGetSupportedAssertions + * host-defined abstract operation: + * https://tc39.es/proposal-import-assertions/#sec-hostgetsupportedimportassertions + */ + std::vector supported_import_assertions; + }; /** * Stack-allocated class which sets the isolate for all operations * executed within a local scope. */ - class V8_EXPORT Scope { + class V8_EXPORT V8_NODISCARD Scope { public: explicit Scope(Isolate* isolate) : isolate_(isolate) { isolate->Enter(); @@ -8385,11 +8458,10 @@ class V8_EXPORT Isolate { Isolate* const isolate_; }; - /** * Assert that no Javascript code is invoked. */ - class V8_EXPORT DisallowJavascriptExecutionScope { + class V8_EXPORT V8_NODISCARD DisallowJavascriptExecutionScope { public: enum OnFailure { CRASH_ON_FAILURE, THROW_ON_FAILURE, DUMP_ON_FAILURE }; @@ -8407,11 +8479,10 @@ class V8_EXPORT Isolate { void* internal_; }; - /** * Introduce exception to DisallowJavascriptExecutionScope. */ - class V8_EXPORT AllowJavascriptExecutionScope { + class V8_EXPORT V8_NODISCARD AllowJavascriptExecutionScope { public: explicit AllowJavascriptExecutionScope(Isolate* isolate); ~AllowJavascriptExecutionScope(); @@ -8432,7 +8503,7 @@ class V8_EXPORT Isolate { * Do not run microtasks while this scope is active, even if microtasks are * automatically executed otherwise. */ - class V8_EXPORT SuppressMicrotaskExecutionScope { + class V8_EXPORT V8_NODISCARD SuppressMicrotaskExecutionScope { public: explicit SuppressMicrotaskExecutionScope( Isolate* isolate, MicrotaskQueue* microtask_queue = nullptr); @@ -8456,7 +8527,7 @@ class V8_EXPORT Isolate { * This scope allows terminations inside direct V8 API calls and forbid them * inside any recursive API calls without explicit SafeForTerminationScope. */ - class V8_EXPORT SafeForTerminationScope { + class V8_EXPORT V8_NODISCARD SafeForTerminationScope { public: explicit SafeForTerminationScope(v8::Isolate* isolate); ~SafeForTerminationScope(); @@ -8613,8 +8684,8 @@ class V8_EXPORT Isolate { kMessageWarning, }; - typedef void (*UseCounterCallback)(Isolate* isolate, - UseCounterFeature feature); + using UseCounterCallback = void (*)(Isolate* isolate, + UseCounterFeature feature); /** * Allocates a new isolate but does not initialize it. Does not change the @@ -8680,7 +8751,7 @@ class V8_EXPORT Isolate { * - the custom callback set returns true. * Otherwise, the custom callback will not be called and V8 will not abort. */ - typedef bool (*AbortOnUncaughtExceptionCallback)(Isolate*); + using AbortOnUncaughtExceptionCallback = bool (*)(Isolate*); void SetAbortOnUncaughtExceptionCallback( AbortOnUncaughtExceptionCallback callback); @@ -8844,7 +8915,7 @@ class V8_EXPORT Isolate { std::unique_ptr delegate, MeasureMemoryExecution execution = MeasureMemoryExecution::kDefault); - V8_DEPRECATE_SOON("Use the version with a delegate") + V8_DEPRECATED("Use the version with a delegate") MaybeLocal MeasureMemory(Local context, MeasureMemoryMode mode); @@ -8907,10 +8978,6 @@ class V8_EXPORT Isolate { */ Local GetCurrentContext(); - /** Returns the last context entered through V8's C++ API. */ - V8_DEPRECATED("Use GetEnteredOrMicrotaskContext().") - Local GetEnteredContext(); - /** * Returns either the last context entered through V8's C++ API, or the * context of the currently running microtask while processing microtasks. @@ -8933,10 +9000,10 @@ class V8_EXPORT Isolate { */ Local ThrowException(Local exception); - typedef void (*GCCallback)(Isolate* isolate, GCType type, - GCCallbackFlags flags); - typedef void (*GCCallbackWithData)(Isolate* isolate, GCType type, - GCCallbackFlags flags, void* data); + using GCCallback = void (*)(Isolate* isolate, GCType type, + GCCallbackFlags flags); + using GCCallbackWithData = void (*)(Isolate* isolate, GCType type, + GCCallbackFlags flags, void* data); /** * Enables the host application to receive a notification before a @@ -8969,6 +9036,12 @@ class V8_EXPORT Isolate { */ EmbedderHeapTracer* GetEmbedderHeapTracer(); + /** + * \returns the C++ heap managed by V8. Only available if the Isolate was + * created with proper CreatePrams::cpp_heap_params option. + */ + CppHeap* GetCppHeap() const; + /** * Use for |AtomicsWaitCallback| to indicate the type of event it receives. */ @@ -9033,12 +9106,12 @@ class V8_EXPORT Isolate { * This callback may schedule exceptions, *unless* |event| is equal to * |kTerminatedExecution|. */ - typedef void (*AtomicsWaitCallback)(AtomicsWaitEvent event, - Local array_buffer, - size_t offset_in_bytes, int64_t value, - double timeout_in_ms, - AtomicsWaitWakeHandle* stop_handle, - void* data); + using AtomicsWaitCallback = void (*)(AtomicsWaitEvent event, + Local array_buffer, + size_t offset_in_bytes, int64_t value, + double timeout_in_ms, + AtomicsWaitWakeHandle* stop_handle, + void* data); /** * Set a new |AtomicsWaitCallback|. This overrides an earlier @@ -9070,7 +9143,7 @@ class V8_EXPORT Isolate { void* data = nullptr); void RemoveGCEpilogueCallback(GCCallback callback); - typedef size_t (*GetExternallyAllocatedMemoryInBytesCallback)(); + using GetExternallyAllocatedMemoryInBytesCallback = size_t (*)(); /** * Set the callback that tells V8 how much memory is currently allocated @@ -9189,12 +9262,6 @@ class V8_EXPORT Isolate { */ void SetPromiseRejectCallback(PromiseRejectCallback callback); - /** - * An alias for PerformMicrotaskCheckpoint. - */ - V8_DEPRECATED("Use PerformMicrotaskCheckpoint.") - void RunMicrotasks() { PerformMicrotaskCheckpoint(); } - /** * Runs the default MicrotaskQueue until it gets empty and perform other * microtask checkpoint steps, such as calling ClearKeptObjects. Asserts that @@ -9236,16 +9303,12 @@ class V8_EXPORT Isolate { * Executing scripts inside the callback will not re-trigger microtasks and * the callback. */ - V8_DEPRECATED("Use *WithData version.") - void AddMicrotasksCompletedCallback(MicrotasksCompletedCallback callback); void AddMicrotasksCompletedCallback( MicrotasksCompletedCallbackWithData callback, void* data = nullptr); /** * Removes callback that was installed by AddMicrotasksCompletedCallback. */ - V8_DEPRECATED("Use *WithData version.") - void RemoveMicrotasksCompletedCallback(MicrotasksCompletedCallback callback); void RemoveMicrotasksCompletedCallback( MicrotasksCompletedCallbackWithData callback, void* data = nullptr); @@ -9488,11 +9551,6 @@ class V8_EXPORT Isolate { * strings should be allowed. */ V8_DEPRECATED( - "Use Isolate::SetModifyCodeGenerationFromStringsCallback instead. " - "See http://crbug.com/v8/10096.") - void SetAllowCodeGenerationFromStringsCallback( - AllowCodeGenerationFromStringsCallback callback); - V8_DEPRECATE_SOON( "Use Isolate::SetModifyCodeGenerationFromStringsCallback with " "ModifyCodeGenerationFromStringsCallback2 instead. See " "http://crbug.com/1096017 and TC39 Dynamic Code Brand Checks proposal " @@ -9686,7 +9744,7 @@ class V8_EXPORT StartupData { * EntropySource is used as a callback function when v8 needs a source * of entropy. */ -typedef bool (*EntropySource)(unsigned char* buffer, size_t length); +using EntropySource = bool (*)(unsigned char* buffer, size_t length); /** * ReturnAddressLocationResolver is used as a callback function when v8 is @@ -9701,9 +9759,8 @@ typedef bool (*EntropySource)(unsigned char* buffer, size_t length); * * \note The resolver function must not cause garbage collection. */ -typedef uintptr_t (*ReturnAddressLocationResolver)( - uintptr_t return_addr_location); - +using ReturnAddressLocationResolver = + uintptr_t (*)(uintptr_t return_addr_location); /** * Container class for static utility functions. @@ -9857,7 +9914,7 @@ class V8_EXPORT V8 { * \param context The third argument passed to the Linux signal handler, which * points to a ucontext_t structure. */ - V8_DEPRECATE_SOON("Use TryHandleWebAssemblyTrapPosix") + V8_DEPRECATED("Use TryHandleWebAssemblyTrapPosix") static bool TryHandleSignal(int signal_number, void* info, void* context); #endif // V8_OS_POSIX @@ -10588,8 +10645,8 @@ class V8_EXPORT Context { * context, call the specified callback, and throw an exception. * To unset abort, pass nullptr as callback. */ - typedef void (*AbortScriptExecutionCallback)(Isolate* isolate, - Local context); + using AbortScriptExecutionCallback = void (*)(Isolate* isolate, + Local context); void SetAbortScriptExecution(AbortScriptExecutionCallback callback); /** @@ -10608,7 +10665,7 @@ class V8_EXPORT Context { * Stack-allocated class which sets the execution context for all * operations executed within a local scope. */ - class Scope { + class V8_NODISCARD Scope { public: explicit V8_INLINE Scope(Local context) : context_(context) { context_->Enter(); @@ -10624,7 +10681,7 @@ class V8_EXPORT Context { * stack. * https://html.spec.whatwg.org/multipage/webappapis.html#backup-incumbent-settings-object-stack */ - class V8_EXPORT BackupIncumbentScope final { + class V8_EXPORT V8_NODISCARD BackupIncumbentScope final { public: /** * |backup_incumbent_context| is pushed onto the backup incumbent settings @@ -10925,7 +10982,7 @@ void Persistent::Copy(const Persistent& that) { template bool PersistentBase::IsWeak() const { - typedef internal::Internals I; + using I = internal::Internals; if (this->IsEmpty()) return false; return I::GetNodeState(reinterpret_cast(this->val_)) == I::kNodeStateIsWeakValue; @@ -10966,7 +11023,7 @@ template V8_INLINE void PersistentBase::SetWeak( P* parameter, typename WeakCallbackInfo

::Callback callback, WeakCallbackType type) { - typedef typename WeakCallbackInfo::Callback Callback; + using Callback = WeakCallbackInfo::Callback; #if (__GNUC__ >= 8) && !defined(__clang__) #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wcast-function-type" @@ -10998,7 +11055,7 @@ void PersistentBase::AnnotateStrongRetainer(const char* label) { template void PersistentBase::SetWrapperClassId(uint16_t class_id) { - typedef internal::Internals I; + using I = internal::Internals; if (this->IsEmpty()) return; internal::Address* obj = reinterpret_cast(this->val_); uint8_t* addr = reinterpret_cast(obj) + I::kNodeClassIdOffset; @@ -11008,7 +11065,7 @@ void PersistentBase::SetWrapperClassId(uint16_t class_id) { template uint16_t PersistentBase::WrapperClassId() const { - typedef internal::Internals I; + using I = internal::Internals; if (this->IsEmpty()) return 0; internal::Address* obj = reinterpret_cast(this->val_); uint8_t* addr = reinterpret_cast(obj) + I::kNodeClassIdOffset; @@ -11206,7 +11263,7 @@ TracedReference& TracedReference::operator=(const TracedReference& rhs) { } void TracedReferenceBase::SetWrapperClassId(uint16_t class_id) { - typedef internal::Internals I; + using I = internal::Internals; if (IsEmpty()) return; internal::Address* obj = reinterpret_cast(val_); uint8_t* addr = reinterpret_cast(obj) + I::kNodeClassIdOffset; @@ -11214,7 +11271,7 @@ void TracedReferenceBase::SetWrapperClassId(uint16_t class_id) { } uint16_t TracedReferenceBase::WrapperClassId() const { - typedef internal::Internals I; + using I = internal::Internals; if (IsEmpty()) return 0; internal::Address* obj = reinterpret_cast(val_); uint8_t* addr = reinterpret_cast(obj) + I::kNodeClassIdOffset; @@ -11274,7 +11331,7 @@ void ReturnValue::Set(double i) { template void ReturnValue::Set(int32_t i) { static_assert(std::is_base_of::value, "type check"); - typedef internal::Internals I; + using I = internal::Internals; if (V8_LIKELY(I::IsValidSmi(i))) { *value_ = I::IntToSmi(i); return; @@ -11297,7 +11354,7 @@ void ReturnValue::Set(uint32_t i) { template void ReturnValue::Set(bool value) { static_assert(std::is_base_of::value, "type check"); - typedef internal::Internals I; + using I = internal::Internals; int root_index; if (value) { root_index = I::kTrueValueRootIndex; @@ -11310,21 +11367,21 @@ void ReturnValue::Set(bool value) { template void ReturnValue::SetNull() { static_assert(std::is_base_of::value, "type check"); - typedef internal::Internals I; + using I = internal::Internals; *value_ = *I::GetRoot(GetIsolate(), I::kNullValueRootIndex); } template void ReturnValue::SetUndefined() { static_assert(std::is_base_of::value, "type check"); - typedef internal::Internals I; + using I = internal::Internals; *value_ = *I::GetRoot(GetIsolate(), I::kUndefinedValueRootIndex); } template void ReturnValue::SetEmptyString() { static_assert(std::is_base_of::value, "type check"); - typedef internal::Internals I; + using I = internal::Internals; *value_ = *I::GetRoot(GetIsolate(), I::kEmptyStringRootIndex); } @@ -11336,7 +11393,7 @@ Isolate* ReturnValue::GetIsolate() const { template Local ReturnValue::Get() const { - typedef internal::Internals I; + using I = internal::Internals; if (*value_ == *I::GetRoot(GetIsolate(), I::kTheHoleValueRootIndex)) return Local(*Undefined(GetIsolate())); return Local::New(GetIsolate(), reinterpret_cast(value_)); @@ -11416,23 +11473,33 @@ int FunctionCallbackInfo::Length() const { return length_; } -ScriptOrigin::ScriptOrigin(Local resource_name, - Local resource_line_offset, - Local resource_column_offset, - Local resource_is_shared_cross_origin, - Local script_id, - Local source_map_url, - Local resource_is_opaque, - Local is_wasm, Local is_module, +ScriptOrigin::ScriptOrigin( + Local resource_name, Local line_offset, + Local column_offset, Local is_shared_cross_origin, + Local script_id, Local source_map_url, + Local is_opaque, Local is_wasm, Local is_module, + Local host_defined_options) + : ScriptOrigin( + resource_name, + line_offset.IsEmpty() ? 0 : static_cast(line_offset->Value()), + column_offset.IsEmpty() ? 0 + : static_cast(column_offset->Value()), + !is_shared_cross_origin.IsEmpty() && is_shared_cross_origin->IsTrue(), + static_cast(script_id.IsEmpty() ? -1 : script_id->Value()), + source_map_url, !is_opaque.IsEmpty() && is_opaque->IsTrue(), + !is_wasm.IsEmpty() && is_wasm->IsTrue(), + !is_module.IsEmpty() && is_module->IsTrue(), host_defined_options) {} + +ScriptOrigin::ScriptOrigin(Local resource_name, int line_offset, + int column_offset, bool is_shared_cross_origin, + int script_id, Local source_map_url, + bool is_opaque, bool is_wasm, bool is_module, Local host_defined_options) - : resource_name_(resource_name), - resource_line_offset_(resource_line_offset), - resource_column_offset_(resource_column_offset), - options_(!resource_is_shared_cross_origin.IsEmpty() && - resource_is_shared_cross_origin->IsTrue(), - !resource_is_opaque.IsEmpty() && resource_is_opaque->IsTrue(), - !is_wasm.IsEmpty() && is_wasm->IsTrue(), - !is_module.IsEmpty() && is_module->IsTrue()), + : isolate_(Isolate::GetCurrent()), + resource_name_(resource_name), + resource_line_offset_(line_offset), + resource_column_offset_(column_offset), + options_(is_shared_cross_origin, is_opaque, is_wasm, is_module), script_id_(script_id), source_map_url_(source_map_url), host_defined_options_(host_defined_options) {} @@ -11444,17 +11511,22 @@ Local ScriptOrigin::HostDefinedOptions() const { } Local ScriptOrigin::ResourceLineOffset() const { - return resource_line_offset_; + return v8::Integer::New(isolate_, resource_line_offset_); } - Local ScriptOrigin::ResourceColumnOffset() const { - return resource_column_offset_; + return v8::Integer::New(isolate_, resource_column_offset_); +} + +Local ScriptOrigin::ScriptID() const { + return v8::Integer::New(isolate_, script_id_); } +int ScriptOrigin::LineOffset() const { return resource_line_offset_; } -Local ScriptOrigin::ScriptID() const { return script_id_; } +int ScriptOrigin::ColumnOffset() const { return resource_column_offset_; } +int ScriptOrigin::ScriptId() const { return script_id_; } Local ScriptOrigin::SourceMapUrl() const { return source_map_url_; } @@ -11462,8 +11534,8 @@ ScriptCompiler::Source::Source(Local string, const ScriptOrigin& origin, CachedData* data) : source_string(string), resource_name(origin.ResourceName()), - resource_line_offset(origin.ResourceLineOffset()), - resource_column_offset(origin.ResourceColumnOffset()), + resource_line_offset(origin.LineOffset()), + resource_column_offset(origin.ColumnOffset()), resource_options(origin.Options()), source_map_url(origin.SourceMapUrl()), host_defined_options(origin.HostDefinedOptions()), @@ -11528,8 +11600,8 @@ AccessorSignature* AccessorSignature::Cast(Data* data) { Local Object::GetInternalField(int index) { #ifndef V8_ENABLE_CHECKS - typedef internal::Address A; - typedef internal::Internals I; + using A = internal::Address; + using I = internal::Internals; A obj = *reinterpret_cast(this); // Fast path: If the object is a plain JSObject, which is the common case, we // know where to find the internal fields and can return the value directly. @@ -11556,8 +11628,8 @@ Local Object::GetInternalField(int index) { void* Object::GetAlignedPointerFromInternalField(int index) { #ifndef V8_ENABLE_CHECKS - typedef internal::Address A; - typedef internal::Internals I; + using A = internal::Address; + using I = internal::Internals; A obj = *reinterpret_cast(this); // Fast path: If the object is a plain JSObject, which is the common case, we // know where to find the internal fields and can return the value directly. @@ -11578,17 +11650,16 @@ void* Object::GetAlignedPointerFromInternalField(int index) { return SlowGetAlignedPointerFromInternalField(index); } -String* String::Cast(v8::Value* value) { +String* String::Cast(v8::Data* data) { #ifdef V8_ENABLE_CHECKS - CheckCast(value); + CheckCast(data); #endif - return static_cast(value); + return static_cast(data); } - Local String::Empty(Isolate* isolate) { - typedef internal::Address S; - typedef internal::Internals I; + using S = internal::Address; + using I = internal::Internals; I::CheckInitialized(isolate); S* slot = I::GetRoot(isolate, I::kEmptyStringRootIndex); return Local(reinterpret_cast(slot)); @@ -11596,8 +11667,8 @@ Local String::Empty(Isolate* isolate) { String::ExternalStringResource* String::GetExternalStringResource() const { - typedef internal::Address A; - typedef internal::Internals I; + using A = internal::Address; + using I = internal::Internals; A obj = *reinterpret_cast(this); ExternalStringResource* result; @@ -11619,8 +11690,8 @@ String::ExternalStringResource* String::GetExternalStringResource() const { String::ExternalStringResourceBase* String::GetExternalStringResourceBase( String::Encoding* encoding_out) const { - typedef internal::Address A; - typedef internal::Internals I; + using A = internal::Address; + using I = internal::Internals; A obj = *reinterpret_cast(this); int type = I::GetInstanceType(obj) & I::kFullStringRepresentationMask; *encoding_out = static_cast(type & I::kStringEncodingMask); @@ -11651,8 +11722,8 @@ bool Value::IsUndefined() const { } bool Value::QuickIsUndefined() const { - typedef internal::Address A; - typedef internal::Internals I; + using A = internal::Address; + using I = internal::Internals; A obj = *reinterpret_cast(this); if (!I::HasHeapObjectTag(obj)) return false; if (I::GetInstanceType(obj) != I::kOddballType) return false; @@ -11669,8 +11740,8 @@ bool Value::IsNull() const { } bool Value::QuickIsNull() const { - typedef internal::Address A; - typedef internal::Internals I; + using A = internal::Address; + using I = internal::Internals; A obj = *reinterpret_cast(this); if (!I::HasHeapObjectTag(obj)) return false; if (I::GetInstanceType(obj) != I::kOddballType) return false; @@ -11686,8 +11757,8 @@ bool Value::IsNullOrUndefined() const { } bool Value::QuickIsNullOrUndefined() const { - typedef internal::Address A; - typedef internal::Internals I; + using A = internal::Address; + using I = internal::Internals; A obj = *reinterpret_cast(this); if (!I::HasHeapObjectTag(obj)) return false; if (I::GetInstanceType(obj) != I::kOddballType) return false; @@ -11704,8 +11775,8 @@ bool Value::IsString() const { } bool Value::QuickIsString() const { - typedef internal::Address A; - typedef internal::Internals I; + using A = internal::Address; + using I = internal::Internals; A obj = *reinterpret_cast(this); if (!I::HasHeapObjectTag(obj)) return false; return (I::GetInstanceType(obj) < I::kFirstNonstringType); @@ -11724,30 +11795,27 @@ V8_INLINE Value* Value::Cast(Data* value) { return static_cast(value); } -Boolean* Boolean::Cast(v8::Value* value) { +Boolean* Boolean::Cast(v8::Data* data) { #ifdef V8_ENABLE_CHECKS - CheckCast(value); + CheckCast(data); #endif - return static_cast(value); + return static_cast(data); } - -Name* Name::Cast(v8::Value* value) { +Name* Name::Cast(v8::Data* data) { #ifdef V8_ENABLE_CHECKS - CheckCast(value); + CheckCast(data); #endif - return static_cast(value); + return static_cast(data); } - -Symbol* Symbol::Cast(v8::Value* value) { +Symbol* Symbol::Cast(v8::Data* data) { #ifdef V8_ENABLE_CHECKS - CheckCast(value); + CheckCast(data); #endif - return static_cast(value); + return static_cast(data); } - Private* Private::Cast(Data* data) { #ifdef V8_ENABLE_CHECKS CheckCast(data); @@ -11755,6 +11823,13 @@ Private* Private::Cast(Data* data) { return reinterpret_cast(data); } +ModuleRequest* ModuleRequest::Cast(Data* data) { +#ifdef V8_ENABLE_CHECKS + CheckCast(data); +#endif + return reinterpret_cast(data); +} + Module* Module::Cast(Data* data) { #ifdef V8_ENABLE_CHECKS CheckCast(data); @@ -11762,42 +11837,39 @@ Module* Module::Cast(Data* data) { return reinterpret_cast(data); } -Number* Number::Cast(v8::Value* value) { +Number* Number::Cast(v8::Data* data) { #ifdef V8_ENABLE_CHECKS - CheckCast(value); + CheckCast(data); #endif - return static_cast(value); + return static_cast(data); } - -Integer* Integer::Cast(v8::Value* value) { +Integer* Integer::Cast(v8::Data* data) { #ifdef V8_ENABLE_CHECKS - CheckCast(value); + CheckCast(data); #endif - return static_cast(value); + return static_cast(data); } - -Int32* Int32::Cast(v8::Value* value) { +Int32* Int32::Cast(v8::Data* data) { #ifdef V8_ENABLE_CHECKS - CheckCast(value); + CheckCast(data); #endif - return static_cast(value); + return static_cast(data); } - -Uint32* Uint32::Cast(v8::Value* value) { +Uint32* Uint32::Cast(v8::Data* data) { #ifdef V8_ENABLE_CHECKS - CheckCast(value); + CheckCast(data); #endif - return static_cast(value); + return static_cast(data); } -BigInt* BigInt::Cast(v8::Value* value) { +BigInt* BigInt::Cast(v8::Data* data) { #ifdef V8_ENABLE_CHECKS - CheckCast(value); + CheckCast(data); #endif - return static_cast(value); + return static_cast(data); } Date* Date::Cast(v8::Value* value) { @@ -11901,6 +11973,13 @@ Proxy* Proxy::Cast(v8::Value* value) { return static_cast(value); } +WasmMemoryObject* WasmMemoryObject::Cast(v8::Value* value) { +#ifdef V8_ENABLE_CHECKS + CheckCast(value); +#endif + return static_cast(value); +} + WasmModuleObject* WasmModuleObject::Cast(v8::Value* value) { #ifdef V8_ENABLE_CHECKS CheckCast(value); @@ -12088,7 +12167,7 @@ ReturnValue PropertyCallbackInfo::GetReturnValue() const { template bool PropertyCallbackInfo::ShouldThrowOnError() const { - typedef internal::Internals I; + using I = internal::Internals; if (args_[kShouldThrowOnErrorIndex] != I::IntToSmi(I::kInferShouldThrowMode)) { return args_[kShouldThrowOnErrorIndex] != I::IntToSmi(I::kDontThrow); @@ -12098,8 +12177,8 @@ bool PropertyCallbackInfo::ShouldThrowOnError() const { } Local Undefined(Isolate* isolate) { - typedef internal::Address S; - typedef internal::Internals I; + using S = internal::Address; + using I = internal::Internals; I::CheckInitialized(isolate); S* slot = I::GetRoot(isolate, I::kUndefinedValueRootIndex); return Local(reinterpret_cast(slot)); @@ -12107,8 +12186,8 @@ Local Undefined(Isolate* isolate) { Local Null(Isolate* isolate) { - typedef internal::Address S; - typedef internal::Internals I; + using S = internal::Address; + using I = internal::Internals; I::CheckInitialized(isolate); S* slot = I::GetRoot(isolate, I::kNullValueRootIndex); return Local(reinterpret_cast(slot)); @@ -12116,8 +12195,8 @@ Local Null(Isolate* isolate) { Local True(Isolate* isolate) { - typedef internal::Address S; - typedef internal::Internals I; + using S = internal::Address; + using I = internal::Internals; I::CheckInitialized(isolate); S* slot = I::GetRoot(isolate, I::kTrueValueRootIndex); return Local(reinterpret_cast(slot)); @@ -12125,8 +12204,8 @@ Local True(Isolate* isolate) { Local False(Isolate* isolate) { - typedef internal::Address S; - typedef internal::Internals I; + using S = internal::Address; + using I = internal::Internals; I::CheckInitialized(isolate); S* slot = I::GetRoot(isolate, I::kFalseValueRootIndex); return Local(reinterpret_cast(slot)); @@ -12134,19 +12213,19 @@ Local False(Isolate* isolate) { void Isolate::SetData(uint32_t slot, void* data) { - typedef internal::Internals I; + using I = internal::Internals; I::SetEmbedderData(this, slot, data); } void* Isolate::GetData(uint32_t slot) { - typedef internal::Internals I; + using I = internal::Internals; return I::GetEmbedderData(this, slot); } uint32_t Isolate::GetNumberOfDataSlots() { - typedef internal::Internals I; + using I = internal::Internals; return I::kNumIsolateDataSlots; } @@ -12159,8 +12238,8 @@ MaybeLocal Isolate::GetDataFromSnapshotOnce(size_t index) { Local Context::GetEmbedderData(int index) { #ifndef V8_ENABLE_CHECKS - typedef internal::Address A; - typedef internal::Internals I; + using A = internal::Address; + using I = internal::Internals; A ctx = *reinterpret_cast(this); A embedder_data = I::ReadTaggedPointerField(ctx, I::kNativeContextEmbedderDataOffset); @@ -12185,8 +12264,8 @@ Local Context::GetEmbedderData(int index) { void* Context::GetAlignedPointerFromEmbedderData(int index) { #ifndef V8_ENABLE_CHECKS - typedef internal::Address A; - typedef internal::Internals I; + using A = internal::Address; + using I = internal::Internals; A ctx = *reinterpret_cast(this); A embedder_data = I::ReadTaggedPointerField(ctx, I::kNativeContextEmbedderDataOffset); diff --git a/deps/v8/include/v8config.h b/deps/v8/include/v8config.h index ae89edb2c9b791..0886f691d56a19 100644 --- a/deps/v8/include/v8config.h +++ b/deps/v8/include/v8config.h @@ -239,6 +239,7 @@ // V8_HAS_ATTRIBUTE_VISIBILITY - __attribute__((visibility)) supported // V8_HAS_ATTRIBUTE_WARN_UNUSED_RESULT - __attribute__((warn_unused_result)) // supported +// V8_HAS_CPP_ATTRIBUTE_NODISCARD - [[nodiscard]] supported // V8_HAS_BUILTIN_BSWAP16 - __builtin_bswap16() supported // V8_HAS_BUILTIN_BSWAP32 - __builtin_bswap32() supported // V8_HAS_BUILTIN_BSWAP64 - __builtin_bswap64() supported @@ -262,6 +263,12 @@ // ... // #endif +#if defined(__has_cpp_attribute) +#define V8_HAS_CPP_ATTRIBUTE(FEATURE) __has_cpp_attribute(FEATURE) +#else +#define V8_HAS_CPP_ATTRIBUTE(FEATURE) 0 +#endif + #if defined(__clang__) #if defined(__GNUC__) // Clang in gcc mode. @@ -276,6 +283,8 @@ # define V8_HAS_ATTRIBUTE_WARN_UNUSED_RESULT \ (__has_attribute(warn_unused_result)) +# define V8_HAS_CPP_ATTRIBUTE_NODISCARD (V8_HAS_CPP_ATTRIBUTE(nodiscard)) + # define V8_HAS_BUILTIN_ASSUME_ALIGNED (__has_builtin(__builtin_assume_aligned)) # define V8_HAS_BUILTIN_BSWAP16 (__has_builtin(__builtin_bswap16)) # define V8_HAS_BUILTIN_BSWAP32 (__has_builtin(__builtin_bswap32)) @@ -319,6 +328,7 @@ # define V8_HAS_ATTRIBUTE_UNUSED 1 # define V8_HAS_ATTRIBUTE_VISIBILITY 1 # define V8_HAS_ATTRIBUTE_WARN_UNUSED_RESULT (!V8_CC_INTEL) +# define V8_HAS_CPP_ATTRIBUTE_NODISCARD (V8_HAS_CPP_ATTRIBUTE(nodiscard)) # define V8_HAS_BUILTIN_ASSUME_ALIGNED 1 # define V8_HAS_BUILTIN_CLZ 1 @@ -436,6 +446,20 @@ #define V8_WARN_UNUSED_RESULT /* NOT SUPPORTED */ #endif + +// Annotate a class or constructor indicating the caller must assign the +// constructed instances. +// Apply to the whole class like: +// class V8_NODISCARD Foo() { ... }; +// or apply to just one constructor like: +// V8_NODISCARD Foo() { ... }; +// [[nodiscard]] comes in C++17 but supported in clang with -std >= c++11. +#if V8_HAS_CPP_ATTRIBUTE_NODISCARD +#define V8_NODISCARD [[nodiscard]] +#else +#define V8_NODISCARD /* NOT SUPPORTED */ +#endif + // Helper macro to define no_sanitize attributes only with clang. #if defined(__clang__) && defined(__has_attribute) #if __has_attribute(no_sanitize) @@ -484,4 +508,6 @@ V8 shared library set USING_V8_SHARED. // clang-format on +#undef V8_HAS_CPP_ATTRIBUTE + #endif // V8CONFIG_H_ diff --git a/deps/v8/infra/mb/mb_config.pyl b/deps/v8/infra/mb/mb_config.pyl index aab725feece2fa..b95f7d2fbf5033 100644 --- a/deps/v8/infra/mb/mb_config.pyl +++ b/deps/v8/infra/mb/mb_config.pyl @@ -68,11 +68,14 @@ # TODO(machenbach): Remove after switching to x64 on infra side. 'V8 Win64 ASAN': 'release_x64_asan_no_lsan', 'V8 Win64': 'release_x64_minimal_symbols', + 'V8 Win64 - dev image': 'release_x64_minimal_symbols', 'V8 Win64 - debug': 'debug_x64_minimal_symbols', 'V8 Win64 - msvc': 'release_x64_msvc', # Mac. 'V8 Mac64': 'release_x64', 'V8 Mac64 - debug': 'debug_x64', + 'V8 Official Mac ARM64': 'release_arm64', + 'V8 Official Mac ARM64 Debug': 'debug_arm64', 'V8 Mac64 GC Stress': 'debug_x64', 'V8 Mac64 ASAN': 'release_x64_asan_no_lsan', 'V8 Mac - arm64 - release builder': 'release_arm64', @@ -169,6 +172,8 @@ # IBM. 'V8 Linux - ppc64 - sim': 'release_simulate_ppc64', 'V8 Linux - s390x - sim': 'release_simulate_s390x', + # RISC-V + 'V8 Linux - riscv64 - sim - builder': 'release_simulate_riscv64', }, 'client.v8.branches': { 'V8 Linux - previous branch': 'release_x86', @@ -237,6 +242,7 @@ 'v8_linux64_cfi_rel_ng': 'release_x64_cfi', 'v8_linux64_fuzzilli_ng': 'release_x64_fuzzilli', 'v8_linux64_msan_rel_ng': 'release_simulate_arm64_msan_minimal_symbols', + 'v8_linux64_riscv64_rel_ng': 'release_simulate_riscv64', 'v8_linux64_tsan_rel_ng': 'release_x64_tsan_minimal_symbols', 'v8_linux64_tsan_no_cm_rel_ng': 'release_x64_tsan_no_cm', 'v8_linux64_tsan_isolates_rel_ng': @@ -401,6 +407,8 @@ 'release_bot', 'simulate_mips64el'], 'release_simulate_ppc64': [ 'release_bot', 'simulate_ppc64'], + 'release_simulate_riscv64': [ + 'release_bot', 'simulate_riscv64'], 'release_simulate_s390x': [ 'release_bot', 'simulate_s390x'], @@ -696,7 +704,7 @@ }, 'ios_simulator': { - 'gn_args': 'target_cpu="x64" target_os="ios" ios_use_goma_rbe=true', + 'gn_args': 'target_cpu="x64" target_os="ios"', }, 'lsan': { @@ -783,6 +791,10 @@ 'gn_args': 'target_cpu="x64" v8_target_cpu="ppc64"', }, + 'simulate_riscv64': { + 'gn_args': 'target_cpu="x64" v8_target_cpu="riscv64"', + }, + 'simulate_s390x': { 'gn_args': 'target_cpu="x64" v8_target_cpu="s390x"', }, diff --git a/deps/v8/infra/testing/builders.pyl b/deps/v8/infra/testing/builders.pyl index 9414e17377abf2..bffd21d01b2c17 100644 --- a/deps/v8/infra/testing/builders.pyl +++ b/deps/v8/infra/testing/builders.pyl @@ -549,6 +549,16 @@ ], }, ############################################################################## + # Linux64 with RISC-V simulators + 'v8_linux64_riscv64_rel_ng_triggered': { + 'swarming_dimensions': { + 'os': 'Ubuntu-16.04', + }, + 'tests': [ + {'name': 'v8testing', 'shards': 3}, + ], + }, + ############################################################################## # Odroids with native arm 'v8_odroid_arm_rel_ng_triggered': { 'swarming_dimensions' : { @@ -685,7 +695,7 @@ 'v8_mac_arm64_rel_ng_triggered': { 'swarming_dimensions' : { 'cpu': 'arm64', - 'os': 'Mac-11', + 'os': 'Mac-11.0', 'pool': 'chromium.tests.mac-arm64', }, 'tests': [ @@ -695,7 +705,7 @@ 'v8_mac_arm64_dbg_ng_triggered': { 'swarming_dimensions' : { 'cpu': 'arm64', - 'os': 'Mac-11', + 'os': 'Mac-11.0', 'pool': 'chromium.tests.mac-arm64', }, 'tests': [ @@ -705,7 +715,7 @@ 'v8_mac_arm64_full_dbg_ng_triggered': { 'swarming_dimensions' : { 'cpu': 'arm64', - 'os': 'Mac-11', + 'os': 'Mac-11.0', 'pool': 'chromium.tests.mac-arm64', }, 'tests': [ @@ -1350,7 +1360,7 @@ }, 'V8 Mac - arm64 - release': { 'swarming_dimensions' : { - 'os': 'Mac-11', + 'os': 'Mac-11.0', 'cpu': 'arm64', 'pool': 'chromium.tests.mac-arm64', }, @@ -1754,6 +1764,19 @@ {'name': 'v8testing', 'shards': 3}, ], }, + 'V8 Linux - riscv64 - sim': { + 'swarming_dimensions': { + 'os': 'Ubuntu-16.04', + }, + 'swarming_task_attrs': { + 'expiration': 14400, + 'hard_timeout': 3600, + 'priority': 35, + }, + 'tests': [ + {'name': 'v8testing', 'shards': 3}, + ], + }, 'V8 Linux - s390x - sim': { 'swarming_dimensions': { 'os': 'Ubuntu-16.04', diff --git a/deps/v8/samples/cppgc/OWNERS b/deps/v8/samples/cppgc/OWNERS new file mode 100644 index 00000000000000..3c480d06f70bb8 --- /dev/null +++ b/deps/v8/samples/cppgc/OWNERS @@ -0,0 +1,3 @@ +bikineev@chromium.org +mlippautz@chromium.org +omerkatz@chromium.org diff --git a/deps/v8/samples/cppgc/cppgc-for-v8-embedders.cc b/deps/v8/samples/cppgc/cppgc-for-v8-embedders.cc deleted file mode 100644 index b4d7ed9e4d72da..00000000000000 --- a/deps/v8/samples/cppgc/cppgc-for-v8-embedders.cc +++ /dev/null @@ -1,70 +0,0 @@ -// Copyright 2020 the V8 project authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -/** - * This sample program shows how to set up a stand-alone cppgc heap as an - * embedder of V8. Most importantly, this example shows how to reuse V8's - * platform for cppgc. - */ - -/** - * Simple string rope to illustrate allocation and garbage collection below. The - * rope keeps the next parts alive via regular managed reference. - */ -class Rope final : public cppgc::GarbageCollected { - public: - explicit Rope(std::string part, Rope* next = nullptr) - : part_(part), next_(next) {} - - void Trace(cppgc::Visitor* visitor) const { visitor->Trace(next_); } - - private: - std::string part_; - cppgc::Member next_; - - friend std::ostream& operator<<(std::ostream& os, const Rope& rope); -}; - -std::ostream& operator<<(std::ostream& os, const Rope& rope) { - os << rope.part_; - if (rope.next_) { - os << *rope.next_; - } - return os; -} - -int main(int argc, char* argv[]) { - // Create a platform that is used by cppgc::Heap for execution and backend - // allocation. - auto cppgc_platform = std::make_shared(); - // Initialize the process. This must happen before any cppgc::Heap::Create() - // calls. - cppgc::InitializeProcess(cppgc_platform->GetPageAllocator()); - // Create a managed heap. - std::unique_ptr heap = cppgc::Heap::Create(cppgc_platform); - // Allocate a string rope on the managed heap. - auto* greeting = cppgc::MakeGarbageCollected( - heap->GetAllocationHandle(), "Hello ", - cppgc::MakeGarbageCollected(heap->GetAllocationHandle(), "World!")); - // Manually trigger garbage collection. The object greeting is held alive - // through conservative stack scanning. - heap->ForceGarbageCollectionSlow("V8 embedders example", "Testing"); - std::cout << *greeting << std::endl; - // Gracefully shutdown the process. - cppgc::ShutdownProcess(); - return 0; -} diff --git a/deps/v8/samples/cppgc/cppgc-standalone.cc b/deps/v8/samples/cppgc/cppgc-sample.cc similarity index 77% rename from deps/v8/samples/cppgc/cppgc-standalone.cc rename to deps/v8/samples/cppgc/cppgc-sample.cc index f8cb4020c3a53d..befda9619796ff 100644 --- a/deps/v8/samples/cppgc/cppgc-standalone.cc +++ b/deps/v8/samples/cppgc/cppgc-sample.cc @@ -45,9 +45,13 @@ int main(int argc, char* argv[]) { // Create a default platform that is used by cppgc::Heap for execution and // backend allocation. auto cppgc_platform = std::make_shared(); - // Initialize the process. This must happen before any - // cppgc::Heap::Create() calls. - cppgc::InitializeProcess(cppgc_platform->GetPageAllocator()); + // Initialize the process. This must happen before any cppgc::Heap::Create() + // calls. cppgc::DefaultPlatform::InitializeProcess initializes both cppgc + // and v8 (if cppgc is not used as a standalone) as needed. + // If using a platform other than cppgc::DefaultPlatform, should call + // cppgc::InitializeProcess (for standalone builds) or + // v8::V8::InitializePlatform (for non-standalone builds) directly. + cppgc::DefaultPlatform::InitializeProcess(cppgc_platform.get()); // Create a managed heap. std::unique_ptr heap = cppgc::Heap::Create(cppgc_platform); // Allocate a string rope on the managed heap. @@ -56,7 +60,7 @@ int main(int argc, char* argv[]) { cppgc::MakeGarbageCollected(heap->GetAllocationHandle(), "World!")); // Manually trigger garbage collection. The object greeting is held alive // through conservative stack scanning. - heap->ForceGarbageCollectionSlow("CppGC stand-alone example", "Testing"); + heap->ForceGarbageCollectionSlow("CppGC example", "Testing"); std::cout << *greeting << std::endl; // Gracefully shutdown the process. cppgc::ShutdownProcess(); diff --git a/deps/v8/samples/process.cc b/deps/v8/samples/process.cc index dec0d570311f15..16e70a20644e50 100644 --- a/deps/v8/samples/process.cc +++ b/deps/v8/samples/process.cc @@ -219,7 +219,7 @@ bool JsHttpRequestProcessor::Initialize(map* opts, } // It is a function; cast it to a Function - Local process_fun = Local::Cast(process_val); + Local process_fun = process_val.As(); // Store the function in a Global handle, since we also want // that to remain after this call returns @@ -375,7 +375,7 @@ Local JsHttpRequestProcessor::WrapMap(map* obj) { // Utility function that extracts the C++ map pointer from a wrapper // object. map* JsHttpRequestProcessor::UnwrapMap(Local obj) { - Local field = Local::Cast(obj->GetInternalField(0)); + Local field = obj->GetInternalField(0).As(); void* ptr = field->Value(); return static_cast*>(ptr); } @@ -397,7 +397,7 @@ void JsHttpRequestProcessor::MapGet(Local name, map* obj = UnwrapMap(info.Holder()); // Convert the JavaScript string to a std::string. - string key = ObjectToString(info.GetIsolate(), Local::Cast(name)); + string key = ObjectToString(info.GetIsolate(), name.As()); // Look up the value if it exists using the standard STL ideom. map::iterator iter = obj->find(key); @@ -422,7 +422,7 @@ void JsHttpRequestProcessor::MapSet(Local name, Local value_obj, map* obj = UnwrapMap(info.Holder()); // Convert the key and value to std::strings. - string key = ObjectToString(info.GetIsolate(), Local::Cast(name)); + string key = ObjectToString(info.GetIsolate(), name.As()); string value = ObjectToString(info.GetIsolate(), value_obj); // Update the map. @@ -491,7 +491,7 @@ Local JsHttpRequestProcessor::WrapRequest(HttpRequest* request) { * wrapper object. */ HttpRequest* JsHttpRequestProcessor::UnwrapRequest(Local obj) { - Local field = Local::Cast(obj->GetInternalField(0)); + Local field = obj->GetInternalField(0).As(); void* ptr = field->Value(); return static_cast(ptr); } diff --git a/deps/v8/samples/shell.cc b/deps/v8/samples/shell.cc index 70450296c76389..4cff77cc040f04 100644 --- a/deps/v8/samples/shell.cc +++ b/deps/v8/samples/shell.cc @@ -380,7 +380,7 @@ void ReportException(v8::Isolate* isolate, v8::TryCatch* try_catch) { v8::Local stack_trace_string; if (try_catch->StackTrace(context).ToLocal(&stack_trace_string) && stack_trace_string->IsString() && - v8::Local::Cast(stack_trace_string)->Length() > 0) { + stack_trace_string.As()->Length() > 0) { v8::String::Utf8Value stack_trace(isolate, stack_trace_string); const char* stack_trace_string = ToCString(stack_trace); fprintf(stderr, "%s\n", stack_trace_string); diff --git a/deps/v8/src/DEPS b/deps/v8/src/DEPS index e10d171f260d36..42d0c2d8a40371 100644 --- a/deps/v8/src/DEPS +++ b/deps/v8/src/DEPS @@ -8,6 +8,7 @@ include_rules = [ "+src/compiler/code-assembler.h", "+src/compiler/wasm-compiler.h", "-src/heap", + "+src/heap/basic-memory-chunk.h", "+src/heap/combined-heap.h", "+src/heap/embedder-tracing.h", "+src/heap/factory.h", @@ -25,6 +26,7 @@ include_rules = [ # TODO(v8:10496): Don't expose memory chunk outside of heap/. "+src/heap/memory-chunk.h", "+src/heap/memory-chunk-inl.h", + "+src/heap/parked-scope.h", "+src/heap/read-only-heap-inl.h", "+src/heap/read-only-heap.h", "+src/heap/safepoint.h", diff --git a/deps/v8/src/api/api-arguments-inl.h b/deps/v8/src/api/api-arguments-inl.h index 05bb35786a94e9..57b533c7c9fb11 100644 --- a/deps/v8/src/api/api-arguments-inl.h +++ b/deps/v8/src/api/api-arguments-inl.h @@ -57,8 +57,8 @@ inline Object PropertyCallbackArguments::receiver() { return *slot_at(T::kThisIndex); } -inline JSObject FunctionCallbackArguments::holder() { - return JSObject::cast(*slot_at(T::kHolderIndex)); +inline JSReceiver FunctionCallbackArguments::holder() { + return JSReceiver::cast(*slot_at(T::kHolderIndex)); } #define FOR_EACH_CALLBACK(F) \ diff --git a/deps/v8/src/api/api-arguments.h b/deps/v8/src/api/api-arguments.h index 18690b5db2b6d7..464ebadf37b360 100644 --- a/deps/v8/src/api/api-arguments.h +++ b/deps/v8/src/api/api-arguments.h @@ -74,6 +74,12 @@ class PropertyCallbackArguments PropertyCallbackArguments(Isolate* isolate, Object data, Object self, JSObject holder, Maybe should_throw); + // Don't copy PropertyCallbackArguments, because they would both have the + // same prev_ pointer. + PropertyCallbackArguments(const PropertyCallbackArguments&) = delete; + PropertyCallbackArguments& operator=(const PropertyCallbackArguments&) = + delete; + // ------------------------------------------------------------------------- // Accessor Callbacks // Also used for AccessorSetterCallback. @@ -141,10 +147,6 @@ class PropertyCallbackArguments inline JSObject holder(); inline Object receiver(); - - // Don't copy PropertyCallbackArguments, because they would both have the - // same prev_ pointer. - DISALLOW_COPY_AND_ASSIGN(PropertyCallbackArguments); }; class FunctionCallbackArguments @@ -175,7 +177,7 @@ class FunctionCallbackArguments inline Handle Call(CallHandlerInfo handler); private: - inline JSObject holder(); + inline JSReceiver holder(); internal::Address* argv_; int argc_; diff --git a/deps/v8/src/api/api-inl.h b/deps/v8/src/api/api-inl.h index f686424286d8fe..b8a5c195324937 100644 --- a/deps/v8/src/api/api-inl.h +++ b/deps/v8/src/api/api-inl.h @@ -104,7 +104,8 @@ MAKE_TO_LOCAL(ToLocal, BigInt, BigInt) MAKE_TO_LOCAL(ExternalToLocal, JSObject, External) MAKE_TO_LOCAL(CallableToLocal, JSReceiver, Function) MAKE_TO_LOCAL(ToLocalPrimitive, Object, Primitive) -MAKE_TO_LOCAL(ToLocal, FixedArray, PrimitiveArray) +MAKE_TO_LOCAL(FixedArrayToLocal, FixedArray, FixedArray) +MAKE_TO_LOCAL(PrimitiveArrayToLocal, FixedArray, PrimitiveArray) MAKE_TO_LOCAL(ScriptOrModuleToLocal, Script, ScriptOrModule) #undef MAKE_TO_LOCAL_TYPED_ARRAY diff --git a/deps/v8/src/api/api-natives.cc b/deps/v8/src/api/api-natives.cc index f8f660ea15c939..43d0b3a166a339 100644 --- a/deps/v8/src/api/api-natives.cc +++ b/deps/v8/src/api/api-natives.cc @@ -18,7 +18,7 @@ namespace internal { namespace { -class InvokeScope { +class V8_NODISCARD InvokeScope { public: explicit InvokeScope(Isolate* isolate) : isolate_(isolate), save_context_(isolate) {} @@ -67,33 +67,31 @@ MaybeHandle Instantiate( } } -MaybeHandle DefineAccessorProperty( - Isolate* isolate, Handle object, Handle name, - Handle getter, Handle setter, PropertyAttributes attributes, - bool force_instantiate) { +MaybeHandle DefineAccessorProperty(Isolate* isolate, + Handle object, + Handle name, + Handle getter, + Handle setter, + PropertyAttributes attributes) { DCHECK(!getter->IsFunctionTemplateInfo() || !FunctionTemplateInfo::cast(*getter).do_not_cache()); DCHECK(!setter->IsFunctionTemplateInfo() || !FunctionTemplateInfo::cast(*setter).do_not_cache()); - if (getter->IsFunctionTemplateInfo()) { - if (force_instantiate || - FunctionTemplateInfo::cast(*getter).BreakAtEntry()) { - ASSIGN_RETURN_ON_EXCEPTION( - isolate, getter, - InstantiateFunction(isolate, - Handle::cast(getter)), - Object); - } + if (getter->IsFunctionTemplateInfo() && + FunctionTemplateInfo::cast(*getter).BreakAtEntry()) { + ASSIGN_RETURN_ON_EXCEPTION( + isolate, getter, + InstantiateFunction(isolate, + Handle::cast(getter)), + Object); } - if (setter->IsFunctionTemplateInfo()) { - if (force_instantiate || - FunctionTemplateInfo::cast(*setter).BreakAtEntry()) { - ASSIGN_RETURN_ON_EXCEPTION( - isolate, setter, - InstantiateFunction(isolate, - Handle::cast(setter)), - Object); - } + if (setter->IsFunctionTemplateInfo() && + FunctionTemplateInfo::cast(*setter).BreakAtEntry()) { + ASSIGN_RETURN_ON_EXCEPTION( + isolate, setter, + InstantiateFunction(isolate, + Handle::cast(setter)), + Object); } RETURN_ON_EXCEPTION( isolate, @@ -148,7 +146,7 @@ void EnableAccessChecks(Isolate* isolate, Handle object) { JSObject::MigrateToMap(isolate, object, new_map); } -class AccessCheckDisableScope { +class V8_NODISCARD AccessCheckDisableScope { public: AccessCheckDisableScope(Isolate* isolate, Handle obj) : isolate_(isolate), @@ -186,6 +184,8 @@ Object GetIntrinsic(Isolate* isolate, v8::Intrinsic intrinsic) { template MaybeHandle ConfigureInstance(Isolate* isolate, Handle obj, Handle data) { + RuntimeCallTimerScope timer(isolate, + RuntimeCallCounterId::kConfigureInstance); HandleScope scope(isolate); // Disable access checks while instantiating the object. AccessCheckDisableScope access_check_scope(isolate, obj); @@ -254,7 +254,7 @@ MaybeHandle ConfigureInstance(Isolate* isolate, Handle obj, auto setter = handle(properties->get(i++), isolate); RETURN_ON_EXCEPTION(isolate, DefineAccessorProperty(isolate, obj, name, getter, - setter, attributes, false), + setter, attributes), JSObject); } } else { @@ -293,7 +293,7 @@ MaybeHandle ProbeInstantiationsCache( FixedArray fast_cache = native_context->fast_template_instantiations_cache(); Handle object{fast_cache.get(serial_number - 1), isolate}; - if (object->IsUndefined(isolate)) return {}; + if (object->IsTheHole(isolate)) return {}; return Handle::cast(object); } if (caching_mode == CachingMode::kUnlimited || @@ -357,7 +357,7 @@ void UncacheTemplateInstantiation(Isolate* isolate, bool IsSimpleInstantiation(Isolate* isolate, ObjectTemplateInfo info, JSReceiver new_target) { - DisallowHeapAllocation no_gc; + DisallowGarbageCollection no_gc; if (!new_target.IsJSFunction()) return false; JSFunction fun = JSFunction::cast(new_target); @@ -371,6 +371,8 @@ MaybeHandle InstantiateObject(Isolate* isolate, Handle info, Handle new_target, bool is_prototype) { + RuntimeCallTimerScope timer(isolate, + RuntimeCallCounterId::kInstantiateObject); Handle constructor; int serial_number = info->serial_number(); if (!new_target.is_null()) { @@ -463,6 +465,8 @@ MaybeHandle GetInstancePrototype(Isolate* isolate, MaybeHandle InstantiateFunction( Isolate* isolate, Handle native_context, Handle data, MaybeHandle maybe_name) { + RuntimeCallTimerScope timer(isolate, + RuntimeCallCounterId::kInstantiateFunction); int serial_number = data->serial_number(); if (serial_number) { Handle result; @@ -646,6 +650,8 @@ Handle ApiNatives::CreateApiFunction( Isolate* isolate, Handle native_context, Handle obj, Handle prototype, InstanceType type, MaybeHandle maybe_name) { + RuntimeCallTimerScope timer(isolate, + RuntimeCallCounterId::kCreateApiFunction); Handle shared = FunctionTemplateInfo::GetOrCreateSharedFunctionInfo(isolate, obj, maybe_name); @@ -653,8 +659,7 @@ Handle ApiNatives::CreateApiFunction( DCHECK(shared->HasSharedName()); Handle result = - isolate->factory()->NewFunctionFromSharedFunctionInfo(shared, - native_context); + Factory::JSFunctionBuilder{isolate, shared, native_context}.Build(); if (obj->remove_prototype()) { DCHECK(prototype.is_null()); diff --git a/deps/v8/src/api/api.cc b/deps/v8/src/api/api.cc index 66afdb19681517..9b19d155bd80c4 100644 --- a/deps/v8/src/api/api.cc +++ b/deps/v8/src/api/api.cc @@ -11,6 +11,7 @@ #include // For move #include +#include "include/cppgc/custom-space.h" #include "include/v8-cppgc.h" #include "include/v8-fast-api-calls.h" #include "include/v8-profiler.h" @@ -84,6 +85,7 @@ #include "src/objects/property-details.h" #include "src/objects/property.h" #include "src/objects/prototype.h" +#include "src/objects/shared-function-info.h" #include "src/objects/slots.h" #include "src/objects/smi.h" #include "src/objects/stack-frame-info-inl.h" @@ -99,6 +101,7 @@ #include "src/profiler/heap-snapshot-generator-inl.h" #include "src/profiler/profile-generator-inl.h" #include "src/profiler/tick-sample.h" +#include "src/regexp/regexp-stack.h" #include "src/regexp/regexp-utils.h" #include "src/runtime/runtime.h" #include "src/snapshot/code-serializer.h" @@ -131,6 +134,7 @@ #include "include/v8-wasm-trap-handler-win.h" #include "src/trap-handler/handler-inside-win.h" #if defined(V8_OS_WIN64) +#include "src/base/platform/wrappers.h" #include "src/diagnostics/unwinding-info-win64.h" #endif // V8_OS_WIN64 #endif // V8_OS_WIN @@ -216,11 +220,15 @@ namespace v8 { bailout_value, HandleScopeClass, false); \ i::DisallowJavascriptExecutionDebugOnly __no_script__((isolate)) -#define ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate) \ - i::VMState __state__((isolate)); \ +// Lightweight version for APIs that don't require an active context. +#define ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate) \ i::DisallowJavascriptExecutionDebugOnly __no_script__((isolate)); \ i::DisallowExceptions __no_exceptions__((isolate)) +#define ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate) \ + i::VMState __state__((isolate)); \ + ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate) + #define ENTER_V8_FOR_NEW_CONTEXT(isolate) \ i::VMState __state__((isolate)); \ i::DisallowExceptions __no_exceptions__((isolate)) @@ -230,6 +238,8 @@ namespace v8 { ENTER_V8_HELPER_DO_NOT_USE(isolate, context, class_name, function_name, \ bailout_value, HandleScopeClass, false) +#define ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate) + #define ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate) \ i::VMState __state__((isolate)); @@ -255,7 +265,7 @@ namespace v8 { namespace { -class InternalEscapableScope : public v8::EscapableHandleScope { +class V8_NODISCARD InternalEscapableScope : public v8::EscapableHandleScope { public: explicit inline InternalEscapableScope(i::Isolate* isolate) : v8::EscapableHandleScope(reinterpret_cast(isolate)) {} @@ -273,7 +283,7 @@ void CheckMicrotasksScopesConsistency(i::MicrotaskQueue* microtask_queue) { #endif template -class CallDepthScope { +class V8_NODISCARD CallDepthScope { public: CallDepthScope(i::Isolate* isolate, Local context) : isolate_(isolate), @@ -320,6 +330,9 @@ class CallDepthScope { isolate_->set_next_v8_call_is_safe_for_termination(safe_for_termination_); } + CallDepthScope(const CallDepthScope&) = delete; + CallDepthScope& operator=(const CallDepthScope&) = delete; + void Escape() { DCHECK(!escaped_); escaped_ = true; @@ -352,7 +365,6 @@ class CallDepthScope { friend class i::ThreadLocalTop; DISALLOW_NEW_AND_DELETE() - DISALLOW_COPY_AND_ASSIGN(CallDepthScope); }; } // namespace @@ -363,19 +375,13 @@ static ScriptOrigin GetScriptOriginForScript(i::Isolate* isolate, i::Handle source_map_url(script->source_mapping_url(), isolate); i::Handle host_defined_options(script->host_defined_options(), isolate); - v8::Isolate* v8_isolate = reinterpret_cast(isolate); ScriptOriginOptions options(script->origin_options()); v8::ScriptOrigin origin( - Utils::ToLocal(scriptName), - v8::Integer::New(v8_isolate, script->line_offset()), - v8::Integer::New(v8_isolate, script->column_offset()), - v8::Boolean::New(v8_isolate, options.IsSharedCrossOrigin()), - v8::Integer::New(v8_isolate, script->id()), - Utils::ToLocal(source_map_url), - v8::Boolean::New(v8_isolate, options.IsOpaque()), - v8::Boolean::New(v8_isolate, script->type() == i::Script::TYPE_WASM), - v8::Boolean::New(v8_isolate, options.IsModule()), - Utils::ToLocal(host_defined_options)); + Utils::ToLocal(scriptName), script->line_offset(), + script->column_offset(), options.IsSharedCrossOrigin(), script->id(), + Utils::ToLocal(source_map_url), options.IsOpaque(), + script->type() == i::Script::TYPE_WASM, options.IsModule(), + Utils::PrimitiveArrayToLocal(host_defined_options)); return origin; } @@ -549,7 +555,7 @@ class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator { // See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79839 void* data = __linux_calloc(length, 1); #else - void* data = calloc(length, 1); + void* data = base::Calloc(length, 1); #endif return data; } @@ -560,12 +566,12 @@ class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator { // See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79839 void* data = __linux_malloc(length); #else - void* data = malloc(length); + void* data = base::Malloc(length); #endif return data; } - void Free(void* data, size_t) override { free(data); } + void Free(void* data, size_t) override { base::Free(data); } void* Reallocate(void* data, size_t old_length, size_t new_length) override { #if V8_OS_AIX && _LINUX_SOURCE_COMPAT @@ -573,7 +579,7 @@ class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator { // See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79839 void* new_data = __linux_realloc(data, new_length); #else - void* new_data = realloc(data, new_length); + void* new_data = base::Realloc(data, new_length); #endif if (new_length > old_length) { memset(reinterpret_cast(new_data) + old_length, 0, @@ -793,7 +799,7 @@ StartupData SnapshotCreator::CreateBlob( // Create a vector with all contexts and clear associated Persistent fields. // Note these contexts may be dead after calling Clear(), but will not be - // collected until serialization completes and the DisallowHeapAllocation + // collected until serialization completes and the DisallowGarbageCollection // scope above goes out of scope. std::vector contexts; contexts.reserve(num_contexts); @@ -954,17 +960,6 @@ void ResourceConstraints::ConfigureDefaults(uint64_t physical_memory, } } -size_t ResourceConstraints::max_semi_space_size_in_kb() const { - return i::Heap::SemiSpaceSizeFromYoungGenerationSize( - max_young_generation_size_) / - i::KB; -} - -void ResourceConstraints::set_max_semi_space_size_in_kb(size_t limit_in_kb) { - set_max_young_generation_size_in_bytes( - i::Heap::YoungGenerationSizeFromSemiSpaceSize(limit_in_kb * i::KB)); -} - i::Address* V8::GlobalizeReference(i::Isolate* isolate, i::Address* obj) { LOG_API(isolate, Persistent, New); i::Handle result = isolate->global_handles()->Create(*obj); @@ -1162,7 +1157,7 @@ void SealHandleScope::operator delete[](void*, size_t) { base::OS::Abort(); } bool Data::IsModule() const { return Utils::OpenHandle(this)->IsModule(); } bool Data::IsValue() const { - i::DisallowHeapAllocation no_gc; + i::DisallowGarbageCollection no_gc; i::Handle self = Utils::OpenHandle(this); if (self->IsSmi()) { return true; @@ -1241,6 +1236,7 @@ static i::Handle EmbedderDataFor(Context* context, const char* location) { i::Handle env = Utils::OpenHandle(context); i::Isolate* isolate = env->GetIsolate(); + ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate); bool ok = Utils::ApiCheck(env->IsNativeContext(), location, "Not a native context") && Utils::ApiCheck(index >= 0, location, "Negative index"); @@ -1260,7 +1256,10 @@ static i::Handle EmbedderDataFor(Context* context, uint32_t Context::GetNumberOfEmbedderDataFields() { i::Handle context = Utils::OpenHandle(this); - CHECK(context->IsNativeContext()); + ASSERT_NO_SCRIPT_NO_EXCEPTION(context->GetIsolate()); + Utils::ApiCheck(context->IsNativeContext(), + "Context::GetNumberOfEmbedderDataFields", + "Not a native context"); // TODO(ishell): remove cast once embedder_data slot has a proper type. return static_cast( i::EmbedderDataArray::cast(context->embedder_data()).length()); @@ -1430,7 +1429,7 @@ static Local FunctionTemplateNew( i::Handle::cast(struct_obj); { // Disallow GC until all fields of obj have acceptable types. - i::DisallowHeapAllocation no_gc; + i::DisallowGarbageCollection no_gc; InitializeFunctionTemplate(obj); obj->set_length(length); obj->set_do_not_cache(do_not_cache); @@ -1651,7 +1650,7 @@ static Local ObjectTemplateNew( i::Handle::cast(struct_obj); { // Disallow GC until all fields of obj have acceptable types. - i::DisallowHeapAllocation no_gc; + i::DisallowGarbageCollection no_gc; InitializeTemplate(obj, Consts::OBJECT_TEMPLATE); int next_serial_number = 0; if (!do_not_cache) { @@ -2052,9 +2051,11 @@ Local - -
-

Map Panel

- -

Search Map by Address

- - - - -
diff --git a/deps/v8/tools/system-analyzer/map-panel.mjs b/deps/v8/tools/system-analyzer/map-panel.mjs deleted file mode 100644 index 1516038a2df579..00000000000000 --- a/deps/v8/tools/system-analyzer/map-panel.mjs +++ /dev/null @@ -1,72 +0,0 @@ -// Copyright 2020 the V8 project authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. -import './stats-panel.mjs'; -import './map-panel/map-details.mjs'; -import './map-panel/map-transitions.mjs'; - -import {FocusEvent} from './events.mjs'; -import {DOM, V8CustomElement} from './helper.mjs'; -import {MapLogEntry} from './log/map.mjs'; - -DOM.defineCustomElement('map-panel', - (templateText) => - class MapPanel extends V8CustomElement { - _map; - constructor() { - super(templateText); - this.searchBarBtn.addEventListener('click', e => this.handleSearchBar(e)); - this.addEventListener(FocusEvent.name, e => this.handleUpdateMapDetails(e)); - } - - handleUpdateMapDetails(e) { - if (e.entry instanceof MapLogEntry) { - this.mapDetailsPanel.map = e.entry; - } - } - - get mapTransitionsPanel() { - return this.$('#map-transitions'); - } - - get mapDetailsPanel() { - return this.$('#map-details'); - } - - get searchBarBtn() { - return this.$('#searchBarBtn'); - } - - get searchBar() { - return this.$('#searchBar'); - } - - set timeline(timeline) { - this._timeline = timeline; - } - - set map(value) { - this._map = value; - this.mapTransitionsPanel.map = this._map; - } - - handleSearchBar(e) { - let searchBar = this.$('#searchBarInput'); - let searchBarInput = searchBar.value; - // access the map from model cache - let selectedMap = MapLogEntry.get(parseInt(searchBarInput)); - if (selectedMap) { - searchBar.className = 'success'; - } else { - searchBar.className = 'failure'; - } - this.dispatchEvent(new FocusEvent(selectedMap)); - } - - set selectedMapLogEntries(list) { - this.mapTransitionsPanel.selectedMapLogEntries = list; - } - get selectedMapLogEntries() { - return this.mapTransitionsPanel.selectedMapLogEntries; - } -}); diff --git a/deps/v8/tools/system-analyzer/map-panel/map-transitions.mjs b/deps/v8/tools/system-analyzer/map-panel/map-transitions.mjs deleted file mode 100644 index 60462a1db224df..00000000000000 --- a/deps/v8/tools/system-analyzer/map-panel/map-transitions.mjs +++ /dev/null @@ -1,184 +0,0 @@ -// Copyright 2020 the V8 project authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. -import {FocusEvent, SelectionEvent} from '../events.mjs'; -import {DOM, typeToColor, V8CustomElement} from '../helper.mjs'; - -DOM.defineCustomElement('./map-panel/map-transitions', - (templateText) => - class MapTransitions extends V8CustomElement { - _map; - _selectedMapLogEntries; - _displayedMapsInTree; - - constructor() { - super(templateText); - this.transitionView.addEventListener( - 'mousemove', (e) => this.handleTransitionViewChange(e)); - this.currentNode = this.transitionView; - this.currentMap = undefined; - } - - get transitionView() { - return this.$('#transitionView'); - } - - get tooltip() { - return this.$('#tooltip'); - } - - get tooltipContents() { - return this.$('#tooltipContents'); - } - - set map(value) { - this._map = value; - this.showMap(); - } - - handleTransitionViewChange(e) { - this.tooltip.style.left = e.pageX + 'px'; - this.tooltip.style.top = e.pageY + 'px'; - const map = e.target.map; - if (map) { - this.tooltipContents.innerText = map.description; - } - } - - _selectMap(map) { - this.dispatchEvent(new SelectionEvent([map])); - } - - showMap() { - if (this.currentMap === this._map) return; - this.currentMap = this._map; - this.selectedMapLogEntries = [this._map]; - this.update(); - } - - _update() { - this.transitionView.style.display = 'none'; - DOM.removeAllChildren(this.transitionView); - this._displayedMapsInTree = new Set(); - // Limit view to 200 maps for performance reasons. - this.selectedMapLogEntries.slice(0, 200).forEach( - (map) => this.addMapAndParentTransitions(map)); - this._displayedMapsInTree = undefined; - this.transitionView.style.display = ''; - } - - set selectedMapLogEntries(list) { - this._selectedMapLogEntries = list; - this.update(); - } - - get selectedMapLogEntries() { - return this._selectedMapLogEntries; - } - - addMapAndParentTransitions(map) { - if (map === void 0) return; - if (this._displayedMapsInTree.has(map)) return; - this._displayedMapsInTree.add(map); - this.currentNode = this.transitionView; - let parents = map.getParents(); - if (parents.length > 0) { - this.addTransitionTo(parents.pop()); - parents.reverse().forEach((each) => this.addTransitionTo(each)); - } - let mapNode = this.addSubtransitions(map); - // Mark and show the selected map. - mapNode.classList.add('selected'); - if (this.selectedMap == map) { - setTimeout( - () => mapNode.scrollIntoView({ - behavior: 'smooth', - block: 'nearest', - inline: 'nearest', - }), - 1); - } - } - - addSubtransitions(map) { - let mapNode = this.addTransitionTo(map); - // Draw outgoing linear transition line. - let current = map; - while (current.children.length == 1) { - current = current.children[0].to; - this.addTransitionTo(current); - } - return mapNode; - } - - addTransitionEdge(map) { - let classes = ['transitionEdge']; - let edge = DOM.div(classes); - edge.style.backgroundColor = typeToColor(map.edge); - let labelNode = DOM.div('transitionLabel'); - labelNode.innerText = map.edge.toString(); - edge.appendChild(labelNode); - return edge; - } - - addTransitionTo(map) { - // transition[ transitions[ transition[...], transition[...], ...]]; - this._displayedMapsInTree?.add(map); - let transition = DOM.div('transition'); - if (map.isDeprecated()) transition.classList.add('deprecated'); - if (map.edge) { - transition.appendChild(this.addTransitionEdge(map)); - } - let mapNode = this.addMapNode(map); - transition.appendChild(mapNode); - - let subtree = DOM.div('transitions'); - transition.appendChild(subtree); - - this.currentNode.appendChild(transition); - this.currentNode = subtree; - - return mapNode; - } - - addMapNode(map) { - let node = DOM.div('map'); - if (map.edge) node.style.backgroundColor = typeToColor(map.edge); - node.map = map; - node.addEventListener('click', () => this._selectMap(map)); - if (map.children.length > 1) { - node.innerText = map.children.length; - let showSubtree = DOM.div('showSubtransitions'); - showSubtree.addEventListener('click', (e) => this.toggleSubtree(e, node)); - node.appendChild(showSubtree); - } else if (map.children.length == 0) { - node.innerHTML = '●'; - } - this.currentNode.appendChild(node); - return node; - } - - toggleSubtree(event, node) { - let map = node.map; - event.target.classList.toggle('opened'); - let transitionsNode = node.parentElement.querySelector('.transitions'); - let subtransitionNodes = transitionsNode.children; - if (subtransitionNodes.length <= 1) { - // Add subtransitions excepth the one that's already shown. - let visibleTransitionMap = subtransitionNodes.length == 1 ? - transitionsNode.querySelector('.map').map : - void 0; - map.children.forEach((edge) => { - if (edge.to != visibleTransitionMap) { - this.currentNode = transitionsNode; - this.addSubtransitions(edge.to); - } - }); - } else { - // remove all but the first (currently selected) subtransition - for (let i = subtransitionNodes.length - 1; i > 0; i--) { - transitionsNode.removeChild(subtransitionNodes[i]); - } - } - } -}); diff --git a/deps/v8/tools/system-analyzer/processor.mjs b/deps/v8/tools/system-analyzer/processor.mjs index 49448bb9da0a19..9685e09ad6b076 100644 --- a/deps/v8/tools/system-analyzer/processor.mjs +++ b/deps/v8/tools/system-analyzer/processor.mjs @@ -5,7 +5,8 @@ import {LogReader, parseString, parseVarArgs} from '../logreader.mjs'; import {Profile} from '../profile.mjs'; -import {DeoptLogEntry} from './log/deopt.mjs'; +import {ApiLogEntry} from './log/api.mjs'; +import {CodeLogEntry, DeoptLogEntry} from './log/code.mjs'; import {IcLogEntry} from './log/ic.mjs'; import {Edge, MapLogEntry} from './log/map.mjs'; import {Timeline} from './timeline.mjs'; @@ -17,17 +18,28 @@ export class Processor extends LogReader { _mapTimeline = new Timeline(); _icTimeline = new Timeline(); _deoptTimeline = new Timeline(); + _codeTimeline = new Timeline(); + _apiTimeline = new Timeline(); _formatPCRegexp = /(.*):[0-9]+:[0-9]+$/; + _lastTimestamp = 0; + _lastCodeLogEntry; MAJOR_VERSION = 7; MINOR_VERSION = 6; constructor(logString) { super(); - this.propertyICParser = [ + const propertyICParser = [ parseInt, parseInt, parseInt, parseInt, parseString, parseString, parseString, parseString, parseString, parseString ]; this.dispatchTable_ = { __proto__: null, + 'v8-version': { + parsers: [ + parseInt, + parseInt, + ], + processor: this.processV8Version + }, 'code-creation': { parsers: [ parseString, parseInt, parseInt, parseInt, parseInt, parseString, @@ -42,20 +54,28 @@ export class Processor extends LogReader { ], processor: this.processCodeDeopt }, - 'v8-version': { + 'code-move': + {parsers: [parseInt, parseInt], processor: this.processCodeMove}, + 'code-delete': {parsers: [parseInt], processor: this.processCodeDelete}, + 'code-source-info': { + parsers: [ + parseInt, parseInt, parseInt, parseInt, parseString, parseString, + parseString + ], + processor: this.processCodeSourceInfo + }, + 'code-disassemble': { parsers: [ parseInt, - parseInt, + parseString, + parseString, ], - processor: this.processV8Version + processor: this.processCodeDisassemble }, 'script-source': { parsers: [parseInt, parseString, parseString], processor: this.processScriptSource }, - 'code-move': - {parsers: [parseInt, parseInt], processor: this.processCodeMove}, - 'code-delete': {parsers: [parseInt], processor: this.processCodeDelete}, 'sfi-move': {parsers: [parseInt, parseInt], processor: this.processFunctionMove}, 'map-create': @@ -72,33 +92,37 @@ export class Processor extends LogReader { processor: this.processMapDetails }, 'LoadGlobalIC': { - parsers: this.propertyICParser, + parsers: propertyICParser, processor: this.processPropertyIC.bind(this, 'LoadGlobalIC') }, 'StoreGlobalIC': { - parsers: this.propertyICParser, + parsers: propertyICParser, processor: this.processPropertyIC.bind(this, 'StoreGlobalIC') }, 'LoadIC': { - parsers: this.propertyICParser, + parsers: propertyICParser, processor: this.processPropertyIC.bind(this, 'LoadIC') }, 'StoreIC': { - parsers: this.propertyICParser, + parsers: propertyICParser, processor: this.processPropertyIC.bind(this, 'StoreIC') }, 'KeyedLoadIC': { - parsers: this.propertyICParser, + parsers: propertyICParser, processor: this.processPropertyIC.bind(this, 'KeyedLoadIC') }, 'KeyedStoreIC': { - parsers: this.propertyICParser, + parsers: propertyICParser, processor: this.processPropertyIC.bind(this, 'KeyedStoreIC') }, 'StoreInArrayLiteralIC': { - parsers: this.propertyICParser, + parsers: propertyICParser, processor: this.processPropertyIC.bind(this, 'StoreInArrayLiteralIC') }, + 'api': { + parsers: [parseString, parseVarArgs], + processor: this.processApiEvent + }, }; if (logString) this.processString(logString); } @@ -166,45 +190,56 @@ export class Processor extends LogReader { }); } - /** - * Parser for dynamic code optimization state. - */ - parseState(s) { - switch (s) { - case '': - return Profile.CodeState.COMPILED; - case '~': - return Profile.CodeState.OPTIMIZABLE; - case '*': - return Profile.CodeState.OPTIMIZED; + processV8Version(majorVersion, minorVersion) { + if ((majorVersion == this.MAJOR_VERSION && + minorVersion <= this.MINOR_VERSION) || + (majorVersion < this.MAJOR_VERSION)) { + window.alert( + `Unsupported version ${majorVersion}.${minorVersion}. \n` + + `Please use the matching tool for given the V8 version.`); } - throw new Error(`unknown code state: ${s}`); } processCodeCreation(type, kind, timestamp, start, size, name, maybe_func) { + this._lastTimestamp = timestamp; + let entry; + let stateName = ''; if (maybe_func.length) { const funcAddr = parseInt(maybe_func[0]); - const state = this.parseState(maybe_func[1]); - this._profile.addFuncCode( + stateName = maybe_func[1] ?? ''; + const state = Profile.parseState(maybe_func[1]); + entry = this._profile.addFuncCode( type, name, timestamp, start, size, funcAddr, state); } else { - this._profile.addCode(type, name, timestamp, start, size); + entry = this._profile.addCode(type, name, timestamp, start, size); } + this._lastCodeLogEntry = + new CodeLogEntry(type + stateName, timestamp, kind, entry); + this._codeTimeline.push(this._lastCodeLogEntry); } processCodeDeopt( timestamp, codeSize, instructionStart, inliningId, scriptOffset, deoptKind, deoptLocation, deoptReason) { - this._deoptTimeline.push(new DeoptLogEntry(deoptKind, timestamp)); - } - - processV8Version(majorVersion, minorVersion) { - if ((majorVersion == this.MAJOR_VERSION && - minorVersion <= this.MINOR_VERSION) || - (majorVersion < this.MAJOR_VERSION)) { - window.alert( - `Unsupported version ${majorVersion}.${minorVersion}. \n` + - `Please use the matching tool for given the V8 version.`); + this._lastTimestamp = timestamp; + const codeEntry = this._profile.findEntry(instructionStart); + const logEntry = new DeoptLogEntry( + deoptKind, timestamp, codeEntry, deoptReason, deoptLocation, + scriptOffset, instructionStart, codeSize, inliningId); + this._deoptTimeline.push(logEntry); + this.addSourcePosition(codeEntry, logEntry); + logEntry.functionSourcePosition = logEntry.sourcePosition; + // custom parse deopt location + if (deoptLocation !== '') { + const colSeparator = deoptLocation.lastIndexOf(':'); + const rowSeparator = deoptLocation.lastIndexOf(':', colSeparator - 1); + const script = this.getScript(deoptLocation.substring(1, rowSeparator)); + const line = + parseInt(deoptLocation.substring(rowSeparator + 1, colSeparator)); + const column = parseInt( + deoptLocation.substring(colSeparator + 1, deoptLocation.length - 1)); + logEntry.sourcePosition = + script.addSourcePosition(line, column, logEntry); } } @@ -224,111 +259,138 @@ export class Processor extends LogReader { this._profile.moveFunc(from, to); } - formatName(entry) { - if (!entry) return ''; - let name = entry.func.getName(); - let re = /(.*):[0-9]+:[0-9]+$/; - let array = re.exec(name); - if (!array) return name; - return entry.getState() + array[1]; + processCodeSourceInfo( + start, scriptId, startPos, endPos, sourcePositions, inliningPositions, + inlinedFunctions) { + this._profile.addSourcePositions( + start, scriptId, startPos, endPos, sourcePositions, inliningPositions, + inlinedFunctions); + let profileEntry = this._profile.findEntry(start); + if (profileEntry !== this._lastCodeLogEntry._entry) return; + this.addSourcePosition(profileEntry, this._lastCodeLogEntry); + this._lastCodeLogEntry = undefined; + } + + addSourcePosition(profileEntry, logEntry) { + let script = this.getProfileEntryScript(profileEntry); + const parts = profileEntry.getRawName().split(':'); + if (parts.length < 3) return; + const line = parseInt(parts[parts.length - 2]); + const column = parseInt(parts[parts.length - 1]); + logEntry.sourcePosition = script.addSourcePosition(line, column, logEntry); + } + + processCodeDisassemble(start, kind, disassemble) { + this._profile.addDisassemble(start, kind, disassemble); } processPropertyIC( - type, pc, time, line, column, old_state, new_state, map, key, modifier, + type, pc, time, line, column, old_state, new_state, mapId, key, modifier, slow_reason) { - let fnName = this.functionName(pc); - let parts = fnName.split(' '); - let fileName = parts[parts.length - 1]; - let script = this.getScript(fileName); + this._lastTimestamp = time; + const profileEntry = this._profile.findEntry(pc); + const fnName = this.formatProfileEntry(profileEntry); + const script = this.getProfileEntryScript(profileEntry); + const map = this.getOrCreateMapEntry(mapId, time); // TODO: Use SourcePosition here directly let entry = new IcLogEntry( type, fnName, time, line, column, key, old_state, new_state, map, - slow_reason, script, modifier); + slow_reason, modifier); if (script) { entry.sourcePosition = script.addSourcePosition(line, column, entry); } this._icTimeline.push(entry); } - functionName(pc) { - let entry = this._profile.findEntry(pc); - return this.formatName(entry); - } - formatPC(pc, line, column) { - let entry = this._profile.findEntry(pc); - if (!entry) return '' - if (entry.type === 'Builtin') { - return entry.name; - } - let name = entry.func.getName(); - let array = this._formatPCRegexp.exec(name); - if (array === null) { - entry = name; - } else { - entry = entry.getState() + array[1]; - } - return entry + ':' + line + ':' + column; + formatProfileEntry(profileEntry, line, column) { + if (!profileEntry) return ''; + if (profileEntry.type === 'Builtin') return profileEntry.name; + const name = profileEntry.func.getName(); + const array = this._formatPCRegexp.exec(name); + const formatted = + (array === null) ? name : profileEntry.getState() + array[1]; + if (line === undefined || column === undefined) return formatted; + return `${formatted}:${line}:${column}`; } - processFileName(filePositionLine) { - if (!filePositionLine.includes(' ')) return; - // Try to handle urls with file positions: https://foo.bar.com/:17:330" - filePositionLine = filePositionLine.split(' '); - let parts = filePositionLine[1].split(':'); - if (parts[0].length <= 5) return parts[0] + ':' + parts[1]; - return parts[1]; + getProfileEntryScript(profileEntry) { + if (!profileEntry) return undefined; + if (profileEntry.type === 'Builtin') return undefined; + const script = profileEntry.source?.script; + if (script !== undefined) return script; + // Slow path, try to get the script from the url: + const fnName = this.formatProfileEntry(profileEntry); + let parts = fnName.split(' '); + let fileName = parts[parts.length - 1]; + return this.getScript(fileName); } processMap(type, time, from, to, pc, line, column, reason, name) { - let time_ = parseInt(time); + this._lastTimestamp = time; + const time_ = parseInt(time); if (type === 'Deprecate') return this.deprecateMap(type, time_, from); - let from_ = this.getExistingMapEntry(from, time_); - let to_ = this.getExistingMapEntry(to, time_); + // Skip normalized maps that were cached so we don't introduce multiple + // edges with the same source and target map. + if (type === 'NormalizeCached') return; + const from_ = this.getOrCreateMapEntry(from, time_); + const to_ = this.getOrCreateMapEntry(to, time_); + if (type === 'Normalize') { + // Fix a bug where we log "Normalize" transitions for maps created from + // the NormalizedMapCache. + if (to_.parent()?.id === from || to_.time < from_.time || to_.depth > 0) { + console.log(`Skipping transition to cached normalized map`); + return; + } + } // TODO: use SourcePosition directly. let edge = new Edge(type, name, reason, time, from_, to_); - to_.filePosition = this.formatPC(pc, line, column); - let fileName = this.processFileName(to_.filePosition); - // TODO: avoid undefined source positions. - if (fileName !== undefined) { - to_.script = this.getScript(fileName); + const profileEntry = this._profile.findEntry(pc) + to_.entry = profileEntry; + let script = this.getProfileEntryScript(profileEntry); + if (script) { + to_.sourcePosition = script.addSourcePosition(line, column, to_) } - if (to_.script) { - to_.sourcePosition = to_.script.addSourcePosition(line, column, to_) + if (to_.parent() !== undefined && to_.parent() === from_) { + // Fix bug where we double log transitions. + console.warn('Fixing up double transition'); + to_.edge.updateFrom(edge); + } else { + edge.finishSetup(); } - edge.finishSetup(); } deprecateMap(type, time, id) { - this.getExistingMapEntry(id, time).deprecate(); + this._lastTimestamp = time; + this.getOrCreateMapEntry(id, time).deprecate(); } processMapCreate(time, id) { // map-create events might override existing maps if the addresses get // recycled. Hence we do not check for existing maps. - let map = this.createMapEntry(id, time); + this._lastTimestamp = time; + this.createMapEntry(id, time); } processMapDetails(time, id, string) { // TODO(cbruni): fix initial map logging. - let map = this.getExistingMapEntry(id, time); + const map = this.getOrCreateMapEntry(id, time); map.description = string; } createMapEntry(id, time) { - let map = new MapLogEntry(id, time); + this._lastTimestamp = time; + const map = new MapLogEntry(id, time); this._mapTimeline.push(map); return map; } - getExistingMapEntry(id, time) { + getOrCreateMapEntry(id, time) { if (id === '0x000000000000') return undefined; - let map = MapLogEntry.get(id, time); - if (map === undefined) { - console.error(`No map details provided: id=${id}`); - // Manually patch in a map to continue running. - return this.createMapEntry(id, time); - }; - return map; + const map = MapLogEntry.get(id, time); + if (map !== undefined) return map; + console.warn(`No map details provided: id=${id}`); + // Manually patch in a map to continue running. + return this.createMapEntry(id, time); } getScript(url) { @@ -340,6 +402,22 @@ export class Processor extends LogReader { return script; } + processApiEvent(type, varArgs) { + let name, arg1; + if (varArgs.length == 0) { + const index = type.indexOf(':'); + if (index > 0) { + name = type; + type = type.substr(0, index); + } + } else { + name = varArgs[0]; + arg1 = varArgs[1]; + } + this._apiTimeline.push( + new ApiLogEntry(type, this._lastTimestamp, name, arg1)); + } + get icTimeline() { return this._icTimeline; } @@ -352,7 +430,19 @@ export class Processor extends LogReader { return this._deoptTimeline; } + get codeTimeline() { + return this._codeTimeline; + } + + get apiTimeline() { + return this._apiTimeline; + } + get scripts() { return this._profile.scripts_.filter(script => script !== undefined); } + + get profile() { + return this._profile; + } } diff --git a/deps/v8/tools/system-analyzer/source-panel-template.html b/deps/v8/tools/system-analyzer/source-panel-template.html deleted file mode 100644 index 01b777042f3d6a..00000000000000 --- a/deps/v8/tools/system-analyzer/source-panel-template.html +++ /dev/null @@ -1,54 +0,0 @@ - - - - - - -
-

Source Panel

- -
- 

-  

-

diff --git a/deps/v8/tools/system-analyzer/stats-panel-template.html b/deps/v8/tools/system-analyzer/stats-panel-template.html
deleted file mode 100644
index fb91fad1cf0050..00000000000000
--- a/deps/v8/tools/system-analyzer/stats-panel-template.html
+++ /dev/null
@@ -1,73 +0,0 @@
-
-
-
-  
-
-
-

-  
Map Stats

-  

-    
-      
-        
-      
-      
-    
TypeCountPercent

-    
-      
-        
-      
-      
-      
-        
-      
-    
CountPropery Name
Show more...

-  

-

diff --git a/deps/v8/tools/system-analyzer/stats-panel.mjs b/deps/v8/tools/system-analyzer/stats-panel.mjs
deleted file mode 100644
index dd0ac78489a790..00000000000000
--- a/deps/v8/tools/system-analyzer/stats-panel.mjs
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright 2020 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-import {SelectionEvent} from './events.mjs';
-import {DOM, V8CustomElement} from './helper.mjs';
-import {delay, LazyTable} from './helper.mjs';
-
-DOM.defineCustomElement(
-    'stats-panel', (templateText) => class StatsPanel extends V8CustomElement {
-      _timeline;
-      _transitions;
-      _selectedLogEntries;
-      constructor() {
-        super(templateText);
-      }
-
-      get stats() {
-        return this.$('#stats');
-      }
-
-      set timeline(timeline) {
-        this._timeline = timeline;
-        this.selectedLogEntries = timeline.all
-      }
-
-      set selectedLogEntries(entries) {
-        this._selectedLogEntries = entries;
-        this.update();
-      }
-
-      set transitions(value) {
-        this._transitions = value;
-      }
-
-      _filterUniqueTransitions(filter) {
-        // Returns a list of Maps whose parent is not in the list.
-        return this._selectedLogEntries.filter((map) => {
-          if (filter(map) === false) return false;
-          let parent = map.parent();
-          if (parent === undefined) return true;
-          return filter(parent) === false;
-        });
-      }
-
-      _update() {
-        this._updateGeneralStats();
-        this._updateNamedTransitionsStats();
-      }
-
-      _updateGeneralStats() {
-        console.assert(this._timeline !== undefined, 'Timeline not set yet!');
-        let pairs = [
-          ['Transitions', 'primary', (e) => e.edge && e.edge.isTransition()],
-          ['Fast to Slow', 'violet', (e) => e.edge && e.edge.isFastToSlow()],
-          ['Slow to Fast', 'orange', (e) => e.edge && e.edge.isSlowToFast()],
-          ['Initial Map', 'yellow', (e) => e.edge && e.edge.isInitial()],
-          [
-            'Replace Descriptors',
-            'red',
-            (e) => e.edge && e.edge.isReplaceDescriptors(),
-          ],
-          [
-            'Copy as Prototype',
-            'red',
-            (e) => e.edge && e.edge.isCopyAsPrototype(),
-          ],
-          [
-            'Optimize as Prototype',
-            null,
-            (e) => e.edge && e.edge.isOptimizeAsPrototype(),
-          ],
-          ['Deprecated', null, (e) => e.isDeprecated()],
-          ['Bootstrapped', 'green', (e) => e.isBootstrapped()],
-          ['Total', null, (e) => true],
-        ];
-
-        let tbody = document.createElement('tbody');
-        let total = this._selectedLogEntries.length;
-        pairs.forEach(([name, color, filter]) => {
-          let row = DOM.tr();
-          if (color !== null) {
-            row.appendChild(DOM.td(DOM.div(['colorbox', color])));
-          } else {
-            row.appendChild(DOM.td(''));
-          }
-          row.classList.add('clickable');
-          row.onclick = (e) => {
-            // lazily compute the stats
-            let node = e.target.parentNode;
-            if (node.maps == undefined) {
-              node.maps = this._filterUniqueTransitions(filter);
-            }
-            this.dispatchEvent(new SelectionEvent(node.maps));
-          };
-          row.appendChild(DOM.td(name));
-          let count = this._count(filter);
-          row.appendChild(DOM.td(count));
-          let percent = Math.round((count / total) * 1000) / 10;
-          row.appendChild(DOM.td(percent.toFixed(1) + '%'));
-          tbody.appendChild(row);
-        });
-        this.$('#typeTable').replaceChild(tbody, this.$('#typeTable tbody'));
-      }
-
-      _count(filter) {
-        let count = 0;
-        for (const map of this._selectedLogEntries) {
-          if (filter(map)) count++;
-        }
-        return count;
-      }
-
-      _updateNamedTransitionsStats() {
-        let rowData = Array.from(this._transitions.entries());
-        rowData.sort((a, b) => b[1].length - a[1].length);
-        new LazyTable(this.$('#nameTable'), rowData, ([name, maps]) => {
-          let row = DOM.tr();
-          row.maps = maps;
-          row.classList.add('clickable');
-          row.addEventListener(
-              'click',
-              (e) => this.dispatchEvent(new SelectionEvent(
-                  e.target.parentNode.maps.map((map) => map.to))));
-          row.appendChild(DOM.td(maps.length));
-          row.appendChild(DOM.td(name));
-          return row;
-        });
-      }
-    });
diff --git a/deps/v8/tools/system-analyzer/timeline-panel-template.html b/deps/v8/tools/system-analyzer/timeline-panel-template.html
deleted file mode 100644
index 2641c714414190..00000000000000
--- a/deps/v8/tools/system-analyzer/timeline-panel-template.html
+++ /dev/null
@@ -1,13 +0,0 @@
-
-
-
-  
-
-

-  
Timeline Panel

-  

-    
-  

-

diff --git a/deps/v8/tools/system-analyzer/timeline.mjs b/deps/v8/tools/system-analyzer/timeline.mjs
index 996f108b6a456b..13e97553e6c105 100644
--- a/deps/v8/tools/system-analyzer/timeline.mjs
+++ b/deps/v8/tools/system-analyzer/timeline.mjs
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import {groupBy} from './helper.mjs'
+
 class Timeline {
   // Class:
   _model;
@@ -9,13 +11,13 @@ class Timeline {
   _values;
   // Current selection, subset of #values:
   _selection;
-  _uniqueTypes;
+  _breakdown;
 
-  constructor(model) {
+  constructor(model, values = [], startTime = 0, endTime = 0) {
     this._model = model;
-    this._values = [];
-    this.startTime = 0;
-    this.endTime = 0;
+    this._values = values;
+    this.startTime = startTime;
+    this.endTime = endTime;
   }
 
   get model() {
@@ -30,21 +32,28 @@ class Timeline {
     return this._selection;
   }
 
+  get selectionOrSelf() {
+    return this._selection ?? this;
+  }
+
   set selection(value) {
     this._selection = value;
   }
 
-  selectTimeRange(start, end) {
-    this._selection = this.filter(e => e.time >= start && e.time <= end);
+  selectTimeRange(startTime, endTime) {
+    const items = this.range(startTime, endTime);
+    this._selection = new Timeline(this._model, items, startTime, endTime);
+  }
+
+  clearSelection() {
+    this._selection = undefined;
   }
 
   getChunks(windowSizeMs) {
-    // TODO(zcankara) Fill this one
     return this.chunkSizes(windowSizeMs);
   }
 
   get values() {
-    // TODO(zcankara) Not to break something delete later
     return this._values;
   }
 
@@ -94,6 +103,10 @@ class Timeline {
     return this._values.length;
   }
 
+  slice(startIndex, endIndex) {
+    return this._values.slice(startIndex, endIndex);
+  }
+
   first() {
     return this._values[0];
   }
@@ -102,17 +115,23 @@ class Timeline {
     return this._values[this._values.length - 1];
   }
 
+  * [Symbol.iterator]() {
+    yield* this._values;
+  }
+
   duration() {
+    if (this.isEmpty()) return 0;
     return this.last().time - this.first().time;
   }
 
   forEachChunkSize(count, fn) {
+    if (this.isEmpty()) return;
     const increment = this.duration() / count;
     let currentTime = this.first().time + increment;
     let index = 0;
     for (let i = 0; i < count; i++) {
-      let nextIndex = this.find(currentTime, index);
-      let nextTime = currentTime + increment;
+      const nextIndex = this.find(currentTime, index);
+      const nextTime = currentTime + increment;
       fn(index, nextIndex, currentTime, nextTime);
       index = nextIndex;
       currentTime = nextTime;
@@ -120,56 +139,55 @@ class Timeline {
   }
 
   chunkSizes(count) {
-    let chunks = [];
+    const chunks = [];
     this.forEachChunkSize(count, (start, end) => chunks.push(end - start));
     return chunks;
   }
 
-  chunks(count) {
-    let chunks = [];
+  chunks(count, predicate = undefined) {
+    const chunks = [];
     this.forEachChunkSize(count, (start, end, startTime, endTime) => {
       let items = this._values.slice(start, end);
+      if (predicate !== undefined) items = items.filter(predicate);
       chunks.push(new Chunk(chunks.length, startTime, endTime, items));
     });
     return chunks;
   }
 
-  range(start, end) {
-    const first = this.find(start);
-    if (first < 0) return [];
-    const last = this.find(end, first);
-    return this._values.slice(first, last);
+  // Return all entries in ({startTime}, {endTime}]
+  range(startTime, endTime) {
+    const firstIndex = this.find(startTime);
+    if (firstIndex < 0) return [];
+    const lastIndex = this.find(endTime, firstIndex + 1);
+    return this._values.slice(firstIndex, lastIndex);
   }
 
+  // Return the first index for the first element at {time}.
   find(time, offset = 0) {
     return this._find(this._values, each => each.time - time, offset);
   }
 
-  _find(array, cmp, offset = 0) {
-    let min = offset;
-    let max = array.length;
-    while (min < max) {
-      let mid = min + Math.floor((max - min) / 2);
-      let result = cmp(array[mid]);
-      if (result > 0) {
-        max = mid - 1;
+  // Return the first index for which compareFn(item) is >= 0;
+  _find(array, compareFn, offset = 0) {
+    let minIndex = offset;
+    let maxIndex = array.length - 1;
+    while (minIndex < maxIndex) {
+      const midIndex = minIndex + (((maxIndex - minIndex) / 2) | 0);
+      if (compareFn(array[midIndex]) < 0) {
+        minIndex = midIndex + 1;
       } else {
-        min = mid + 1;
+        maxIndex = midIndex;
       }
     }
-    return min;
+    return minIndex;
   }
 
-  initializeTypes() {
-    const types = new Map();
-    for (const entry of this.all) {
-      types.get(entry.type)?.push(entry) ?? types.set(entry.type, [entry])
+  getBreakdown(keyFunction) {
+    if (keyFunction) return groupBy(this._values, keyFunction);
+    if (this._breakdown === undefined) {
+      this._breakdown = groupBy(this._values, each => each.type);
     }
-    return this._uniqueTypes = types;
-  }
-
-  get uniqueTypes() {
-    return this._uniqueTypes ?? this.initializeTypes();
+    return this._breakdown;
   }
 
   depthHistogram() {
@@ -215,6 +233,10 @@ class Chunk {
     return this.items.length;
   }
 
+  get length() {
+    return this.items.length;
+  }
+
   yOffset(event) {
     // items[0]   == oldest event, displayed at the top of the chunk
     // items[n-1] == youngest event, displayed at the bottom of the chunk
@@ -248,17 +270,8 @@ class Chunk {
     return chunk;
   }
 
-  getBreakdown(event_fn) {
-    if (event_fn === void 0) {
-      event_fn = each => each;
-    }
-    let breakdown = {__proto__: null};
-    this.items.forEach(each => {
-      const type = event_fn(each);
-      const v = breakdown[type];
-      breakdown[type] = (v | 0) + 1;
-    });
-    return Object.entries(breakdown).sort((a, b) => a[1] - b[1]);
+  getBreakdown(keyFunction) {
+    return groupBy(this.items, keyFunction);
   }
 
   filter() {
diff --git a/deps/v8/tools/system-analyzer/timeline/timeline-track-template.html b/deps/v8/tools/system-analyzer/timeline/timeline-track-template.html
deleted file mode 100644
index e14b927e4b374e..00000000000000
--- a/deps/v8/tools/system-analyzer/timeline/timeline-track-template.html
+++ /dev/null
@@ -1,138 +0,0 @@
-
-
-
-  
-
-
-
-  
-    
-      
-      
-      
-      
-    
-  
-  
-  
-
TypeCountPercent

-

-  

-  

-  

-  
Frequency

-  

-  
-

\ No newline at end of file
diff --git a/deps/v8/tools/system-analyzer/timeline/timeline-track.mjs b/deps/v8/tools/system-analyzer/timeline/timeline-track.mjs
deleted file mode 100644
index a37bcce2c56b2f..00000000000000
--- a/deps/v8/tools/system-analyzer/timeline/timeline-track.mjs
+++ /dev/null
@@ -1,518 +0,0 @@
-// Copyright 2020 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import {FocusEvent, SelectionEvent, SelectTimeEvent, SynchronizeSelectionEvent} from '../events.mjs';
-import {CSSColor, delay, DOM, V8CustomElement} from '../helper.mjs';
-import {kChunkHeight, kChunkWidth} from '../log/map.mjs';
-
-const kColors = [
-  CSSColor.green,
-  CSSColor.violet,
-  CSSColor.orange,
-  CSSColor.yellow,
-  CSSColor.primaryColor,
-  CSSColor.red,
-  CSSColor.blue,
-  CSSColor.yellow,
-  CSSColor.secondaryColor,
-];
-
-DOM.defineCustomElement('./timeline/timeline-track',
-                        (templateText) =>
-                            class TimelineTrack extends V8CustomElement {
-  // TODO turn into static field once Safari supports it.
-  static get SELECTION_OFFSET() {
-    return 10
-  };
-  _timeline;
-  _nofChunks = 400;
-  _chunks;
-  _selectedEntry;
-  _timeToPixel;
-  _timeSelection = {start: -1, end: Infinity};
-  _timeStartOffset;
-  _selectionOriginTime;
-  _typeToColor;
-  constructor() {
-    super(templateText);
-    this.timeline.addEventListener('scroll', e => this.handleTimelineScroll(e));
-    this.timeline.addEventListener(
-        'mousedown', e => this.handleTimeSelectionMouseDown(e));
-    this.timeline.addEventListener(
-        'mouseup', e => this.handleTimeSelectionMouseUp(e));
-    this.timeline.addEventListener(
-        'mousemove', e => this.handleTimeSelectionMouseMove(e));
-    this.backgroundCanvas = document.createElement('canvas');
-    this.isLocked = false;
-  }
-
-  handleTimeSelectionMouseDown(e) {
-    let xPosition = e.clientX
-    // Update origin time in case we click on a handle.
-    if (this.isOnLeftHandle(xPosition)) {
-      xPosition = this.rightHandlePosX;
-    }
-    else if (this.isOnRightHandle(xPosition)) {
-      xPosition = this.leftHandlePosX;
-    }
-    this._selectionOriginTime = this.positionToTime(xPosition);
-  }
-
-  isOnLeftHandle(posX) {
-    return (
-        Math.abs(this.leftHandlePosX - posX) <= TimelineTrack.SELECTION_OFFSET);
-  }
-
-  isOnRightHandle(posX) {
-    return (
-        Math.abs(this.rightHandlePosX - posX) <=
-        TimelineTrack.SELECTION_OFFSET);
-  }
-
-  handleTimeSelectionMouseMove(e) {
-    if (!this._isSelecting) return;
-    const currentTime = this.positionToTime(e.clientX);
-    this.dispatchEvent(new SynchronizeSelectionEvent(
-        Math.min(this._selectionOriginTime, currentTime),
-        Math.max(this._selectionOriginTime, currentTime)));
-  }
-
-  handleTimeSelectionMouseUp(e) {
-    this._selectionOriginTime = -1;
-    const delta = this._timeSelection.end - this._timeSelection.start;
-    if (delta <= 1 || isNaN(delta)) return;
-    this.dispatchEvent(new SelectTimeEvent(
-        this._timeSelection.start, this._timeSelection.end));
-  }
-
-  set timeSelection(selection) {
-    this._timeSelection.start = selection.start;
-    this._timeSelection.end = selection.end;
-    this.updateSelection();
-  }
-
-  get _isSelecting() {
-    return this._selectionOriginTime >= 0;
-  }
-
-  updateSelection() {
-    const startPosition = this.timeToPosition(this._timeSelection.start);
-    const endPosition = this.timeToPosition(this._timeSelection.end);
-    const delta = endPosition - startPosition;
-    this.leftHandle.style.left = startPosition + 'px';
-    this.selection.style.left = startPosition + 'px';
-    this.rightHandle.style.left = endPosition + 'px';
-    this.selection.style.width = delta + 'px';
-  }
-
-  get leftHandlePosX() {
-    return this.leftHandle.getBoundingClientRect().x;
-  }
-
-  get rightHandlePosX() {
-    return this.rightHandle.getBoundingClientRect().x;
-  }
-
-  // Maps the clicked x position to the x position on timeline canvas
-  positionOnTimeline(posX) {
-    let rect = this.timeline.getBoundingClientRect();
-    let posClickedX = posX - rect.left + this.timeline.scrollLeft;
-    return posClickedX;
-  }
-
-  positionToTime(posX) {
-    let posTimelineX = this.positionOnTimeline(posX) + this._timeStartOffset;
-    return posTimelineX / this._timeToPixel;
-  }
-
-  timeToPosition(time) {
-    let posX = time * this._timeToPixel;
-    posX -= this._timeStartOffset
-    return posX;
-  }
-
-  get leftHandle() {
-    return this.$('.leftHandle');
-  }
-
-  get rightHandle() {
-    return this.$('.rightHandle');
-  }
-
-  get selection() {
-    return this.$('.selection');
-  }
-
-  get timelineCanvas() {
-    return this.$('#timelineCanvas');
-  }
-
-  get timelineChunks() {
-    return this.$('#timelineChunks');
-  }
-
-  get timeline() {
-    return this.$('#timeline');
-  }
-
-  get timelineLegend() {
-    return this.$('#legend');
-  }
-
-  get timelineLegendContent() {
-    return this.$('#legendContent');
-  }
-
-  set data(value) {
-    this._timeline = value;
-    this._resetTypeToColorCache();
-    this.update();
-  }
-
-  _update() {
-    this._updateChunks();
-    this._updateTimeline();
-    this._renderLegend();
-  }
-
-  _resetTypeToColorCache() {
-    this._typeToColor = new Map();
-    let lastIndex = 0;
-    for (const type of this.data.uniqueTypes.keys()) {
-      this._typeToColor.set(type, kColors[lastIndex++]);
-    }
-  }
-
-  get data() {
-    return this._timeline;
-  }
-
-  set nofChunks(count) {
-    this._nofChunks = count;
-    this.update();
-  }
-
-  get nofChunks() {
-    return this._nofChunks;
-  }
-
-  _updateChunks() {
-    this._chunks = this.data.chunks(this.nofChunks);
-  }
-
-  get chunks() {
-    return this._chunks;
-  }
-
-  set selectedEntry(value) {
-    this._selectedEntry = value;
-    if (value.edge) this.redraw();
-  }
-
-  get selectedEntry() {
-    return this._selectedEntry;
-  }
-
-  set scrollLeft(offset) {
-    this.timeline.scrollLeft = offset;
-  }
-
-  typeToColor(type) {
-    return this._typeToColor.get(type);
-  }
-
-  _renderLegend() {
-    let timelineLegendContent = this.timelineLegendContent;
-    DOM.removeAllChildren(timelineLegendContent);
-    this._timeline.uniqueTypes.forEach((entries, type) => {
-      let row = DOM.tr('clickable');
-      row.entries = entries;
-      row.addEventListener('dblclick', e => this.handleEntryTypeDblClick(e));
-      let color = this.typeToColor(type);
-      if (color !== null) {
-        let div = DOM.div('colorbox');
-        div.style.backgroundColor = color;
-        row.appendChild(DOM.td(div));
-      } else {
-        row.appendChild(DOM.td());
-      }
-      let td = DOM.td(type);
-      row.appendChild(td);
-      row.appendChild(DOM.td(entries.length));
-      let percent = (entries.length / this.data.all.length) * 100;
-      row.appendChild(DOM.td(percent.toFixed(1) + '%'));
-      timelineLegendContent.appendChild(row);
-    });
-    // Add Total row.
-    let row = DOM.tr();
-    row.appendChild(DOM.td(''));
-    row.appendChild(DOM.td('All'));
-    row.appendChild(DOM.td(this.data.all.length));
-    row.appendChild(DOM.td('100%'));
-    timelineLegendContent.appendChild(row);
-    this.timelineLegend.appendChild(timelineLegendContent);
-  }
-
-  handleEntryTypeDblClick(e) {
-    this.dispatchEvent(new SelectionEvent(e.target.parentNode.entries));
-  }
-
-  timelineIndicatorMove(offset) {
-    this.timeline.scrollLeft += offset;
-  }
-
-  handleTimelineScroll(e) {
-    let horizontal = e.currentTarget.scrollLeft;
-    this.dispatchEvent(new CustomEvent(
-        'scrolltrack', {bubbles: true, composed: true, detail: horizontal}));
-  }
-
-  async setChunkBackgrounds(backgroundTodo) {
-    const kMaxDuration = 50;
-    let lastTime = 0;
-    for (let [chunk, node] of backgroundTodo) {
-      const current = performance.now();
-      if (current - lastTime > kMaxDuration) {
-        await delay(25);
-        lastTime = current;
-      }
-      this.setChunkBackground(chunk, node);
-    }
-  }
-
-  setChunkBackground(chunk, node) {
-    // Render the types of transitions as bar charts
-    const kHeight = chunk.height;
-    const kWidth = 1;
-    this.backgroundCanvas.width = kWidth;
-    this.backgroundCanvas.height = kHeight;
-    let ctx = this.backgroundCanvas.getContext('2d');
-    ctx.clearRect(0, 0, kWidth, kHeight);
-    let y = 0;
-    let total = chunk.size();
-    let type, count;
-    if (true) {
-      chunk.getBreakdown(map => map.type).forEach(([type, count]) => {
-        ctx.fillStyle = this.typeToColor(type);
-        let height = count / total * kHeight;
-        ctx.fillRect(0, y, kWidth, y + height);
-        y += height;
-      });
-    } else {
-      chunk.items.forEach(map => {
-        ctx.fillStyle = this.typeToColor(map.type);
-        let y = chunk.yOffset(map);
-        ctx.fillRect(0, y, kWidth, y + 1);
-      });
-    }
-
-    let imageData = this.backgroundCanvas.toDataURL('image/webp', 0.2);
-    node.style.backgroundImage = `url(${imageData})`;
-  }
-
-  _updateTimeline() {
-    let chunksNode = this.timelineChunks;
-    DOM.removeAllChildren(chunksNode);
-    let chunks = this.chunks;
-    let max = chunks.max(each => each.size());
-    let start = this.data.startTime;
-    let end = this.data.endTime;
-    let duration = end - start;
-    this._timeToPixel = chunks.length * kChunkWidth / duration;
-    this._timeStartOffset = start * this._timeToPixel;
-    let addTimestamp = (time, name) => {
-      let timeNode = DOM.div('timestamp');
-      timeNode.innerText = name;
-      timeNode.style.left = ((time - start) * this._timeToPixel) + 'px';
-      chunksNode.appendChild(timeNode);
-    };
-    let backgroundTodo = [];
-    for (let i = 0; i < chunks.length; i++) {
-      let chunk = chunks[i];
-      let height = (chunk.size() / max * kChunkHeight);
-      chunk.height = height;
-      if (chunk.isEmpty()) continue;
-      let node = DOM.div();
-      node.className = 'chunk';
-      node.style.left = ((chunks[i].start - start) * this._timeToPixel) + 'px';
-      node.style.height = height + 'px';
-      node.chunk = chunk;
-      node.addEventListener('mousemove', e => this.handleChunkMouseMove(e));
-      node.addEventListener('click', e => this.handleChunkClick(e));
-      node.addEventListener('dblclick', e => this.handleChunkDoubleClick(e));
-      backgroundTodo.push([chunk, node])
-      chunksNode.appendChild(node);
-    }
-    this.setChunkBackgrounds(backgroundTodo);
-
-    // Put a time marker roughly every 20 chunks.
-    let expected = duration / chunks.length * 20;
-    let interval = (10 ** Math.floor(Math.log10(expected)));
-    let correction = Math.log10(expected / interval);
-    correction = (correction < 0.33) ? 1 : (correction < 0.75) ? 2.5 : 5;
-    interval *= correction;
-
-    let time = start;
-    while (time < end) {
-      addTimestamp(time, ((time - start) / 1000) + ' ms');
-      time += interval;
-    }
-    this.redraw();
-  }
-
-  handleChunkMouseMove(event) {
-    if (this.isLocked) return false;
-    if (this._isSelecting) return false;
-    let chunk = event.target.chunk;
-    if (!chunk) return;
-    // topmost map (at chunk.height) == map #0.
-    let relativeIndex =
-        Math.round(event.layerY / event.target.offsetHeight * chunk.size());
-    let map = chunk.at(relativeIndex);
-    this.dispatchEvent(new FocusEvent(map));
-  }
-
-  handleChunkClick(event) {
-    this.isLocked = !this.isLocked;
-  }
-
-  handleChunkDoubleClick(event) {
-    let chunk = event.target.chunk;
-    if (!chunk) return;
-    this.dispatchEvent(new SelectTimeEvent(chunk.start, chunk.end));
-  }
-
-  redraw() {
-    let canvas = this.timelineCanvas;
-    canvas.width = (this.chunks.length + 1) * kChunkWidth;
-    canvas.height = kChunkHeight;
-    let ctx = canvas.getContext('2d');
-    ctx.clearRect(0, 0, canvas.width, kChunkHeight);
-    if (!this.selectedEntry || !this.selectedEntry.edge) return;
-    this.drawEdges(ctx);
-  }
-  setMapStyle(map, ctx) {
-    ctx.fillStyle = map.edge && map.edge.from ? CSSColor.onBackgroundColor :
-                                                CSSColor.onPrimaryColor;
-  }
-
-  setEdgeStyle(edge, ctx) {
-    let color = this.typeToColor(edge.type);
-    ctx.strokeStyle = color;
-    ctx.fillStyle = color;
-  }
-
-  markMap(ctx, map) {
-    let [x, y] = map.position(this.chunks);
-    ctx.beginPath();
-    this.setMapStyle(map, ctx);
-    ctx.arc(x, y, 3, 0, 2 * Math.PI);
-    ctx.fill();
-    ctx.beginPath();
-    ctx.fillStyle = CSSColor.onBackgroundColor;
-    ctx.arc(x, y, 2, 0, 2 * Math.PI);
-    ctx.fill();
-  }
-
-  markSelectedMap(ctx, map) {
-    let [x, y] = map.position(this.chunks);
-    ctx.beginPath();
-    this.setMapStyle(map, ctx);
-    ctx.arc(x, y, 6, 0, 2 * Math.PI);
-    ctx.strokeStyle = CSSColor.onBackgroundColor;
-    ctx.stroke();
-  }
-
-  drawEdges(ctx) {
-    // Draw the trace of maps in reverse order to make sure the outgoing
-    // transitions of previous maps aren't drawn over.
-    const kMaxOutgoingEdges = 100;
-    let nofEdges = 0;
-    let stack = [];
-    let current = this.selectedEntry;
-    while (current && nofEdges < kMaxOutgoingEdges) {
-      nofEdges += current.children.length;
-      stack.push(current);
-      current = current.parent();
-    }
-    ctx.save();
-    this.drawOutgoingEdges(ctx, this.selectedEntry, 3);
-    ctx.restore();
-
-    let labelOffset = 15;
-    let xPrev = 0;
-    while (current = stack.pop()) {
-      if (current.edge) {
-        this.setEdgeStyle(current.edge, ctx);
-        let [xTo, yTo] = this.drawEdge(ctx, current.edge, true, labelOffset);
-        if (xTo == xPrev) {
-          labelOffset += 8;
-        } else {
-          labelOffset = 15
-        }
-        xPrev = xTo;
-      }
-      this.markMap(ctx, current);
-      current = current.parent();
-      ctx.save();
-      // this.drawOutgoingEdges(ctx, current, 1);
-      ctx.restore();
-    }
-    // Mark selected map
-    this.markSelectedMap(ctx, this.selectedEntry);
-  }
-
-  drawEdge(ctx, edge, showLabel = true, labelOffset = 20) {
-    if (!edge.from || !edge.to) return [-1, -1];
-    let [xFrom, yFrom] = edge.from.position(this.chunks);
-    let [xTo, yTo] = edge.to.position(this.chunks);
-    let sameChunk = xTo == xFrom;
-    if (sameChunk) labelOffset += 8;
-
-    ctx.beginPath();
-    ctx.moveTo(xFrom, yFrom);
-    let offsetX = 20;
-    let offsetY = 20;
-    let midX = xFrom + (xTo - xFrom) / 2;
-    let midY = (yFrom + yTo) / 2 - 100;
-    if (!sameChunk) {
-      ctx.quadraticCurveTo(midX, midY, xTo, yTo);
-    } else {
-      ctx.lineTo(xTo, yTo);
-    }
-    if (!showLabel) {
-      ctx.stroke();
-    } else {
-      let centerX, centerY;
-      if (!sameChunk) {
-        centerX = (xFrom / 2 + midX + xTo / 2) / 2;
-        centerY = (yFrom / 2 + midY + yTo / 2) / 2;
-      } else {
-        centerX = xTo;
-        centerY = yTo;
-      }
-      ctx.moveTo(centerX, centerY);
-      ctx.lineTo(centerX + offsetX, centerY - labelOffset);
-      ctx.stroke();
-      ctx.textAlign = 'left';
-      ctx.fillStyle = this.typeToColor(edge.type);
-      ctx.fillText(
-          edge.toString(), centerX + offsetX + 2, centerY - labelOffset);
-    }
-    return [xTo, yTo];
-  }
-
-  drawOutgoingEdges(ctx, map, max = 10, depth = 0) {
-    if (!map) return;
-    if (depth >= max) return;
-    ctx.globalAlpha = 0.5 - depth * (0.3 / max);
-    ctx.strokeStyle = CSSColor.timelineBackgroundColor;
-    const limit = Math.min(map.children.length, 100)
-    for (let i = 0; i < limit; i++) {
-      let edge = map.children[i];
-      this.drawEdge(ctx, edge, true);
-      this.drawOutgoingEdges(ctx, edge.to, max, depth + 1);
-    }
-  }
-});
diff --git a/deps/v8/tools/system-analyzer/view/code-panel-template.html b/deps/v8/tools/system-analyzer/view/code-panel-template.html
new file mode 100644
index 00000000000000..e04c6be8c182cb
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/code-panel-template.html
@@ -0,0 +1,25 @@
+
+
+
+  
+
+
+

+  
Code Panel

+  

+    
+    
+  

+  

+    
Disassembly

+    

+    
Source Code

+    

+  

+

diff --git a/deps/v8/tools/system-analyzer/view/code-panel.mjs b/deps/v8/tools/system-analyzer/view/code-panel.mjs
new file mode 100644
index 00000000000000..3b5261e03c3fd9
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/code-panel.mjs
@@ -0,0 +1,82 @@
+// Copyright 2020 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+import {IcLogEntry} from '../log/ic.mjs';
+import {MapLogEntry} from '../log/map.mjs';
+
+import {FocusEvent, SelectionEvent, ToolTipEvent} from './events.mjs';
+import {delay, DOM, formatBytes, formatMicroSeconds, V8CustomElement} from './helper.mjs';
+
+DOM.defineCustomElement('view/code-panel',
+                        (templateText) =>
+                            class CodePanel extends V8CustomElement {
+  _timeline;
+  _selectedEntries;
+  _entry;
+
+  constructor() {
+    super(templateText);
+    this._codeSelectNode.onchange = this._handleSelectCode.bind(this);
+    this.$('#selectedRelatedButton').onclick =
+        this._handleSelectRelated.bind(this)
+  }
+
+  set timeline(timeline) {
+    this._timeline = timeline;
+    this.$('.panel').style.display = timeline.isEmpty() ? 'none' : 'inherit';
+    this.update();
+  }
+
+  set selectedEntries(entries) {
+    this._selectedEntries = entries;
+    // TODO: add code selection dropdown
+    this._updateSelect();
+    this.entry = entries.first();
+  }
+
+  set entry(entry) {
+    this._entry = entry;
+    this.update();
+  }
+
+  get _disassemblyNode() {
+    return this.$('#disassembly');
+  }
+
+  get _sourceNode() {
+    return this.$('#sourceCode');
+  }
+
+  get _codeSelectNode() {
+    return this.$('#codeSelect');
+  }
+
+  _update() {
+    this._disassemblyNode.innerText = this._entry?.disassemble ?? '';
+    this._sourceNode.innerText = this._entry?.source ?? '';
+  }
+
+  _updateSelect() {
+    const select = this._codeSelectNode;
+    select.options.length = 0;
+    const sorted =
+        this._selectedEntries.slice().sort((a, b) => a.time - b.time);
+    for (const code of this._selectedEntries) {
+      const option = DOM.element('option');
+      option.text =
+          `${code.name}(...) t=${formatMicroSeconds(code.time)} size=${
+              formatBytes(code.size)} script=${code.script?.toString()}`;
+      option.data = code;
+      select.add(option);
+    }
+  }
+
+  _handleSelectCode() {
+    this.entry = this._codeSelectNode.selectedOptions[0].data;
+  }
+
+  _handleSelectRelated(e) {
+    if (!this._entry) return;
+    this.dispatchEvent(new SelectRelatedEvent(this._entry));
+  }
+});
\ No newline at end of file
diff --git a/deps/v8/tools/system-analyzer/view/events.mjs b/deps/v8/tools/system-analyzer/view/events.mjs
new file mode 100644
index 00000000000000..4204973f8f2027
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/events.mjs
@@ -0,0 +1,93 @@
+// Copyright 2020 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+class AppEvent extends CustomEvent {
+  constructor(name) {
+    super(name, {bubbles: true, composed: true});
+  }
+}
+
+export class SelectionEvent extends AppEvent {
+  // TODO: turn into static class fields once Safari supports it.
+  static get name() {
+    return 'select';
+  }
+
+  constructor(entries) {
+    super(SelectionEvent.name);
+    if (!Array.isArray(entries) || entries.length == 0) {
+      throw new Error('No valid entries selected!');
+    }
+    this.entries = entries;
+  }
+}
+
+export class SelectRelatedEvent extends AppEvent {
+  static get name() {
+    return 'selectrelated';
+  }
+
+  constructor(entry) {
+    super(SelectRelatedEvent.name);
+    this.entry = entry;
+  }
+}
+
+export class FocusEvent extends AppEvent {
+  static get name() {
+    return 'showentrydetail';
+  }
+
+  constructor(entry) {
+    super(FocusEvent.name);
+    this.entry = entry;
+  }
+}
+
+export class SelectTimeEvent extends AppEvent {
+  static get name() {
+    return 'timerangeselect';
+  }
+
+  constructor(start = 0, end = Infinity) {
+    super(SelectTimeEvent.name);
+    this.start = start;
+    this.end = end;
+  }
+}
+
+export class SynchronizeSelectionEvent extends AppEvent {
+  static get name() {
+    return 'syncselection';
+  }
+
+  constructor(start, end) {
+    super(SynchronizeSelectionEvent.name);
+    this.start = start;
+    this.end = end;
+  }
+}
+
+export class ToolTipEvent extends AppEvent {
+  static get name() {
+    return 'showtooltip';
+  }
+
+  constructor(content, positionOrTargetNode) {
+    super(ToolTipEvent.name);
+    this._content = content;
+    if (!positionOrTargetNode && !node) {
+      throw Error('Either provide a valid position or targetNode');
+    }
+    this._positionOrTargetNode = positionOrTargetNode;
+  }
+
+  get content() {
+    return this._content;
+  }
+
+  get positionOrTargetNode() {
+    return this._positionOrTargetNode;
+  }
+}
diff --git a/deps/v8/tools/system-analyzer/view/helper.mjs b/deps/v8/tools/system-analyzer/view/helper.mjs
new file mode 100644
index 00000000000000..780864ef5a0a92
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/helper.mjs
@@ -0,0 +1,314 @@
+// Copyright 2020 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+class CSSColor {
+  static _cache = new Map();
+
+  static get(name) {
+    let color = this._cache.get(name);
+    if (color !== undefined) return color;
+    const style = getComputedStyle(document.body);
+    color = style.getPropertyValue(`--${name}`);
+    if (color === undefined) {
+      throw new Error(`CSS color does not exist: ${name}`);
+    }
+    color = color.trim();
+    this._cache.set(name, color);
+    return color;
+  }
+  static reset() {
+    this._cache.clear();
+  }
+
+  static get backgroundColor() {
+    return this.get('background-color');
+  }
+  static get surfaceColor() {
+    return this.get('surface-color');
+  }
+  static get primaryColor() {
+    return this.get('primary-color');
+  }
+  static get secondaryColor() {
+    return this.get('secondary-color');
+  }
+  static get onSurfaceColor() {
+    return this.get('on-surface-color');
+  }
+  static get onBackgroundColor() {
+    return this.get('on-background-color');
+  }
+  static get onPrimaryColor() {
+    return this.get('on-primary-color');
+  }
+  static get onSecondaryColor() {
+    return this.get('on-secondary-color');
+  }
+  static get defaultColor() {
+    return this.get('default-color');
+  }
+  static get errorColor() {
+    return this.get('error-color');
+  }
+  static get mapBackgroundColor() {
+    return this.get('map-background-color');
+  }
+  static get timelineBackgroundColor() {
+    return this.get('timeline-background-color');
+  }
+  static get red() {
+    return this.get('red');
+  }
+  static get green() {
+    return this.get('green');
+  }
+  static get yellow() {
+    return this.get('yellow');
+  }
+  static get blue() {
+    return this.get('blue');
+  }
+
+  static get orange() {
+    return this.get('orange');
+  }
+
+  static get violet() {
+    return this.get('violet');
+  }
+
+  static at(index) {
+    return this.list[index % this.list.length];
+  }
+
+  static darken(hexColorString, amount = -40) {
+    if (hexColorString[0] !== '#') {
+      throw new Error(`Unsupported color: ${hexColorString}`);
+    }
+    let color = parseInt(hexColorString.substring(1), 16);
+    let b = Math.min(Math.max((color & 0xFF) + amount, 0), 0xFF);
+    let g = Math.min(Math.max(((color >> 8) & 0xFF) + amount, 0), 0xFF);
+    let r = Math.min(Math.max(((color >> 16) & 0xFF) + amount, 0), 0xFF);
+    color = (r << 16) + (g << 8) + b;
+    return `#${color.toString(16).padStart(6, '0')}`;
+  }
+
+  static get list() {
+    if (!this._colors) {
+      this._colors = [
+        this.green,
+        this.violet,
+        this.orange,
+        this.yellow,
+        this.primaryColor,
+        this.red,
+        this.blue,
+        this.yellow,
+        this.secondaryColor,
+        this.darken(this.green),
+        this.darken(this.violet),
+        this.darken(this.orange),
+        this.darken(this.yellow),
+        this.darken(this.primaryColor),
+        this.darken(this.red),
+        this.darken(this.blue),
+        this.darken(this.yellow),
+        this.darken(this.secondaryColor),
+      ];
+    }
+    return this._colors;
+  }
+}
+
+class DOM {
+  static element(type, classes) {
+    const node = document.createElement(type);
+    if (classes === undefined) return node;
+    if (typeof classes === 'string') {
+      node.className = classes;
+    } else {
+      classes.forEach(cls => node.classList.add(cls));
+    }
+    return node;
+  }
+
+  static text(string) {
+    return document.createTextNode(string);
+  }
+
+  static div(classes) {
+    return this.element('div', classes);
+  }
+
+  static span(classes) {
+    return this.element('span', classes);
+  }
+
+  static table(classes) {
+    return this.element('table', classes);
+  }
+
+  static tbody(classes) {
+    return this.element('tbody', classes);
+  }
+
+  static td(textOrNode, className) {
+    const node = this.element('td');
+    if (typeof textOrNode === 'object') {
+      node.appendChild(textOrNode);
+    } else if (textOrNode) {
+      node.innerText = textOrNode;
+    }
+    if (className) node.className = className;
+    return node;
+  }
+
+  static tr(classes) {
+    return this.element('tr', classes);
+  }
+
+  static removeAllChildren(node) {
+    let range = document.createRange();
+    range.selectNodeContents(node);
+    range.deleteContents();
+  }
+
+  static defineCustomElement(path, generator) {
+    let name = path.substring(path.lastIndexOf('/') + 1, path.length);
+    path = path + '-template.html';
+    fetch(path)
+        .then(stream => stream.text())
+        .then(
+            templateText =>
+                customElements.define(name, generator(templateText)));
+  }
+}
+
+function $(id) {
+  return document.querySelector(id)
+}
+
+class V8CustomElement extends HTMLElement {
+  _updateTimeoutId;
+  _updateCallback = this._update.bind(this);
+
+  constructor(templateText) {
+    super();
+    const shadowRoot = this.attachShadow({mode: 'open'});
+    shadowRoot.innerHTML = templateText;
+    this._updateCallback = this._update.bind(this);
+  }
+
+  $(id) {
+    return this.shadowRoot.querySelector(id);
+  }
+
+  querySelectorAll(query) {
+    return this.shadowRoot.querySelectorAll(query);
+  }
+
+  update(useAnimation = false) {
+    if (useAnimation) {
+      window.cancelAnimationFrame(this._updateTimeoutId);
+      this._updateTimeoutId =
+          window.requestAnimationFrame(this._updateCallback);
+    } else {
+      // Use timeout tasks to asynchronously update the UI without blocking.
+      clearTimeout(this._updateTimeoutId);
+      const kDelayMs = 5;
+      this._updateTimeoutId = setTimeout(this._updateCallback, kDelayMs);
+    }
+  }
+
+  _update() {
+    throw Error('Subclass responsibility');
+  }
+}
+
+class Chunked {
+  constructor(iterable, limit) {
+    this._iterator = iterable[Symbol.iterator]();
+    this._limit = limit;
+  }
+
+  * next(limit = undefined) {
+    for (let i = 0; i < (limit ?? this._limit); i++) {
+      const {value, done} = this._iterator.next();
+      if (done) {
+        this._iterator = undefined;
+        return;
+      };
+      yield value;
+    }
+  }
+
+  get hasMore() {
+    return this._iterator !== undefined;
+  }
+}
+
+class LazyTable {
+  constructor(table, rowData, rowElementCreator, limit = 100) {
+    this._table = table;
+    this._chunkedRowData = new Chunked(rowData, limit);
+    this._rowElementCreator = rowElementCreator;
+    if (table.tBodies.length == 0) {
+      table.appendChild(DOM.tbody());
+    } else {
+      table.replaceChild(DOM.tbody(), table.tBodies[0]);
+    }
+    if (!table.tFoot) {
+      const td = table.appendChild(DOM.element('tfoot'))
+                     .appendChild(DOM.tr())
+                     .appendChild(DOM.td());
+      for (let count of [10, 100]) {
+        const button = DOM.element('button');
+        button.innerText = `+${count}`;
+        button.onclick = (e) => this._addMoreRows(count);
+        td.appendChild(button);
+      }
+      td.setAttribute('colspan', 100);
+    }
+    table.tFoot.addEventListener('click', this._clickHandler);
+    this._addMoreRows();
+  }
+
+  _addMoreRows(count = undefined) {
+    const fragment = new DocumentFragment();
+    for (let row of this._chunkedRowData.next(count)) {
+      const tr = this._rowElementCreator(row);
+      fragment.appendChild(tr);
+    }
+    this._table.tBodies[0].appendChild(fragment);
+    if (!this._chunkedRowData.hasMore) {
+      DOM.removeAllChildren(this._table.tFoot);
+    }
+  }
+}
+
+export function gradientStopsFromGroups(
+    totalLength, maxHeight, groups, colorFn) {
+  const kMaxHeight = maxHeight === '%' ? 100 : maxHeight;
+  const kUnit = maxHeight === '%' ? '%' : 'px';
+  let increment = 0;
+  let lastHeight = 0.0;
+  const stops = [];
+  for (let group of groups) {
+    const color = colorFn(group.key);
+    increment += group.count;
+    let height = (increment / totalLength * kMaxHeight) | 0;
+    stops.push(`${color} ${lastHeight}${kUnit} ${height}${kUnit}`)
+    lastHeight = height;
+  }
+  return stops;
+}
+
+export * from '../helper.mjs';
+export {
+  DOM,
+  $,
+  V8CustomElement,
+  CSSColor,
+  LazyTable,
+};
diff --git a/deps/v8/tools/system-analyzer/view/list-panel-template.html b/deps/v8/tools/system-analyzer/view/list-panel-template.html
new file mode 100644
index 00000000000000..4714f97c02f8c8
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/list-panel-template.html
@@ -0,0 +1,78 @@
+
+
+
+  
+
+
+
+

+  
+  
+  

+  

+    
+    
+    
+    
+    
+    
+  

+  
+  

+    
+    
+    

+  

+

diff --git a/deps/v8/tools/system-analyzer/view/list-panel.mjs b/deps/v8/tools/system-analyzer/view/list-panel.mjs
new file mode 100644
index 00000000000000..85e3cd47e28f36
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/list-panel.mjs
@@ -0,0 +1,198 @@
+// Copyright 2020 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import {Script, SourcePosition} from '../../profile.mjs';
+import {LogEntry} from '../log/log.mjs';
+
+import {FocusEvent} from './events.mjs';
+import {groupBy, LazyTable} from './helper.mjs';
+import {DOM, V8CustomElement} from './helper.mjs';
+
+DOM.defineCustomElement('view/list-panel',
+                        (templateText) =>
+                            class ListPanel extends V8CustomElement {
+  _selectedLogEntries = [];
+  _displayedLogEntries = [];
+  _timeline;
+
+  _detailsClickHandler = this._handleDetailsClick.bind(this);
+  _logEntryClickHandler = this._handleLogEntryClick.bind(this);
+
+  constructor() {
+    super(templateText);
+    this.groupKey.addEventListener('change', e => this.update());
+    this.showAllRadio.onclick = _ => this._showEntries(this._timeline);
+    this.showTimerangeRadio.onclick = _ =>
+        this._showEntries(this._timeline.selectionOrSelf);
+    this.showSelectionRadio.onclick = _ =>
+        this._showEntries(this._selectedLogEntries);
+  }
+
+  static get observedAttributes() {
+    return ['title'];
+  }
+
+  attributeChangedCallback(name, oldValue, newValue) {
+    if (name == 'title') {
+      this.$('#title').innerHTML = newValue;
+    }
+  }
+
+  set timeline(timeline) {
+    console.assert(timeline !== undefined, 'timeline undefined!');
+    this._timeline = timeline;
+    this.$('.panel').style.display = timeline.isEmpty() ? 'none' : 'inherit';
+    this._initGroupKeySelect();
+  }
+
+  set selectedLogEntries(entries) {
+    if (entries === this._timeline) {
+      this.showAllRadio.click();
+    } else if (entries === this._timeline.selection) {
+      this.showTimerangeRadio.click();
+    } else {
+      this._selectedLogEntries = entries;
+      this.showSelectionRadio.click();
+    }
+  }
+
+  get entryClass() {
+    return this._timeline.at(0)?.constructor;
+  }
+
+  get groupKey() {
+    return this.$('#group-key');
+  }
+
+  get table() {
+    return this.$('#table');
+  }
+
+  get showAllRadio() {
+    return this.$('#show-all');
+  }
+  get showTimerangeRadio() {
+    return this.$('#show-timerange');
+  }
+  get showSelectionRadio() {
+    return this.$('#show-selection');
+  }
+
+  get _propertyNames() {
+    return this.entryClass?.propertyNames ?? [];
+  }
+
+  _initGroupKeySelect() {
+    const select = this.groupKey;
+    select.options.length = 0;
+    for (const propertyName of this._propertyNames) {
+      const option = DOM.element('option');
+      option.text = propertyName;
+      select.add(option);
+    }
+  }
+
+  _showEntries(entries) {
+    this._displayedLogEntries = entries;
+    this.update();
+  }
+
+  _update() {
+    if (this._timeline.isEmpty()) return;
+    DOM.removeAllChildren(this.table);
+    if (this._displayedLogEntries.length == 0) return;
+    const propertyName = this.groupKey.selectedOptions[0].text;
+    const groups =
+        groupBy(this._displayedLogEntries, each => each[propertyName], true);
+    this._render(groups, this.table);
+  }
+
+  createSubgroups(group) {
+    const map = new Map();
+    for (let propertyName of this._propertyNames) {
+      map.set(
+          propertyName,
+          groupBy(group.entries, each => each[propertyName], true));
+    }
+    return map;
+  }
+
+  _handleLogEntryClick(e) {
+    const group = e.currentTarget.group;
+    this.dispatchEvent(new FocusEvent(group.key));
+  }
+
+  _handleDetailsClick(event) {
+    event.stopPropagation();
+    const tr = event.target.parentNode;
+    const group = tr.group;
+    // Create subgroup in-place if the don't exist yet.
+    if (tr.groups === undefined) {
+      const groups = tr.groups = this.createSubgroups(group);
+      this.renderDrilldown(groups, tr);
+    }
+    const detailsTr = tr.nextSibling;
+    if (tr.classList.contains('open')) {
+      tr.classList.remove('open');
+      detailsTr.style.display = 'none';
+    } else {
+      tr.classList.add('open');
+      detailsTr.style.display = 'table-row';
+    }
+  }
+
+  renderDrilldown(groups, previousSibling) {
+    const tr = DOM.tr('entry-details');
+    tr.style.display = 'none';
+    // indent by one td.
+    tr.appendChild(DOM.td());
+    const td = DOM.td();
+    td.colSpan = 3;
+    groups.forEach((group, key) => {
+      this.renderDrilldownGroup(td, group, key);
+    });
+    tr.appendChild(td);
+    // Append the new TR after previousSibling.
+    previousSibling.parentNode.insertBefore(tr, previousSibling.nextSibling);
+  }
+
+  renderDrilldownGroup(td, groups, key) {
+    const div = DOM.div('drilldown-group-title');
+    div.textContent = `Grouped by ${key}: ${groups[0]?.parentTotal ?? 0}#`;
+    td.appendChild(div);
+    const table = DOM.table();
+    this._render(groups, table, false)
+    td.appendChild(table);
+  }
+
+  _render(groups, table) {
+    let last;
+    new LazyTable(table, groups, group => {
+      if (last && last.count < group.count) {
+        console.log(last, group);
+      }
+      last = group;
+      const tr = DOM.tr();
+      tr.group = group;
+      const details = tr.appendChild(DOM.td('', 'toggle'));
+      details.onclick = this._detailsClickHandler;
+      tr.appendChild(DOM.td(`${group.percent.toFixed(2)}%`, 'percentage'));
+      tr.appendChild(DOM.td(group.count, 'count'));
+      const valueTd = tr.appendChild(DOM.td(`${group.key}`, 'key'));
+      if (this._isClickable(group.key)) {
+        tr.onclick = this._logEntryClickHandler;
+        valueTd.classList.add('clickable');
+      }
+      return tr;
+    }, 10);
+  }
+
+  _isClickable(object) {
+    if (typeof object !== 'object') return false;
+    if (object instanceof LogEntry) return true;
+    if (object instanceof SourcePosition) return true;
+    if (object instanceof Script) return true;
+    return false;
+  }
+});
diff --git a/deps/v8/tools/system-analyzer/log-file-reader-template.html b/deps/v8/tools/system-analyzer/view/log-file-reader-template.html
similarity index 100%
rename from deps/v8/tools/system-analyzer/log-file-reader-template.html
rename to deps/v8/tools/system-analyzer/view/log-file-reader-template.html
diff --git a/deps/v8/tools/system-analyzer/log-file-reader.mjs b/deps/v8/tools/system-analyzer/view/log-file-reader.mjs
similarity index 97%
rename from deps/v8/tools/system-analyzer/log-file-reader.mjs
rename to deps/v8/tools/system-analyzer/view/log-file-reader.mjs
index c46d792d0062d4..fd935f2f836353 100644
--- a/deps/v8/tools/system-analyzer/log-file-reader.mjs
+++ b/deps/v8/tools/system-analyzer/view/log-file-reader.mjs
@@ -3,7 +3,7 @@
 // found in the LICENSE file.
 import {DOM, V8CustomElement} from './helper.mjs';
 
-DOM.defineCustomElement('log-file-reader',
+DOM.defineCustomElement('view/log-file-reader',
                         (templateText) =>
                             class LogFileReader extends V8CustomElement {
   constructor() {
diff --git a/deps/v8/tools/system-analyzer/view/map-panel-template.html b/deps/v8/tools/system-analyzer/view/map-panel-template.html
new file mode 100644
index 00000000000000..8a2b23ee3d4b00
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/map-panel-template.html
@@ -0,0 +1,36 @@
+
+
+
+  
+
+
+

+  
+  
+  
Map Panel

+  

+    
+    
+    
+    
+    
+    
+  

+  
All Transitions

+  
+  
Search Map by Address

+  
+  
+  
+
+  
Details Transitions

+  
+  
Details

+  
+

diff --git a/deps/v8/tools/system-analyzer/view/map-panel.mjs b/deps/v8/tools/system-analyzer/view/map-panel.mjs
new file mode 100644
index 00000000000000..7ee2325f34c4a8
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/map-panel.mjs
@@ -0,0 +1,106 @@
+// Copyright 2020 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+import './map-panel/map-details.mjs';
+import './map-panel/map-transitions.mjs';
+
+import {MapLogEntry} from '../log/map.mjs';
+
+import {FocusEvent} from './events.mjs';
+import {DOM, V8CustomElement} from './helper.mjs';
+
+DOM.defineCustomElement(
+    'view/map-panel', (templateText) => class MapPanel extends V8CustomElement {
+      _map;
+      _timeline;
+      _selectedLogEntries = [];
+      _displayedLogEntries = [];
+
+      constructor() {
+        super(templateText);
+        this.searchBarBtn.addEventListener('click', e => this._handleSearch(e));
+        this.showAllRadio.onclick = _ => this._showEntries(this._timeline);
+        this.showTimerangeRadio.onclick = _ =>
+            this._showEntries(this._timeline.selectionOrSelf);
+        this.showSelectionRadio.onclick = _ =>
+            this._showEntries(this._selectedLogEntries);
+      }
+
+      get showAllRadio() {
+        return this.$('#show-all');
+      }
+      get showTimerangeRadio() {
+        return this.$('#show-timerange');
+      }
+      get showSelectionRadio() {
+        return this.$('#show-selection');
+      }
+
+      get mapTransitionsPanel() {
+        return this.$('#map-transitions');
+      }
+
+      get mapDetailsTransitionsPanel() {
+        return this.$('#map-details-transitions');
+      }
+
+      get mapDetailsPanel() {
+        return this.$('#map-details');
+      }
+
+      get searchBarBtn() {
+        return this.$('#searchBarBtn');
+      }
+
+      get searchBar() {
+        return this.$('#searchBar');
+      }
+
+      set timeline(timeline) {
+        console.assert(timeline !== undefined, 'timeline undefined!');
+        this._timeline = timeline;
+        this.$('.panel').style.display =
+            timeline.isEmpty() ? 'none' : 'inherit';
+        this.mapTransitionsPanel.timeline = timeline;
+        this.mapDetailsTransitionsPanel.timeline = timeline;
+      }
+
+      set selectedLogEntries(entries) {
+        if (entries === this._timeline.selection) {
+          this.showTimerangeRadio.click();
+        } else if (entries == this._timeline) {
+          this.showAllRadio.click();
+        } else {
+          this._selectedLogEntries = entries;
+          this.showSelectionRadio.click();
+        }
+      }
+
+      set map(map) {
+        this._map = map;
+        this.mapDetailsTransitionsPanel.selectedLogEntries = [map];
+        this.mapDetailsPanel.map = map;
+      }
+
+      _showEntries(entries) {
+        this._displayedLogEntries = entries;
+        this.mapTransitionsPanel.selectedLogEntries = entries;
+      }
+
+      update() {
+        // nothing to do
+      }
+
+      _handleSearch(e) {
+        let searchBar = this.$('#searchBarInput');
+        let searchBarInput = searchBar.value;
+        // access the map from model cache
+        let selectedMap = MapLogEntry.get(searchBarInput);
+        if (selectedMap) {
+          searchBar.className = 'success';
+          this.dispatchEvent(new FocusEvent(selectedMap));
+        } else {
+          searchBar.className = 'failure';
+        }
+      }
+    });
diff --git a/deps/v8/tools/system-analyzer/map-panel/map-details-template.html b/deps/v8/tools/system-analyzer/view/map-panel/map-details-template.html
similarity index 54%
rename from deps/v8/tools/system-analyzer/map-panel/map-details-template.html
rename to deps/v8/tools/system-analyzer/view/map-panel/map-details-template.html
index 6d1b268c5dd412..b109d4c8ac7bbb 100644
--- a/deps/v8/tools/system-analyzer/map-panel/map-details-template.html
+++ b/deps/v8/tools/system-analyzer/view/map-panel/map-details-template.html
@@ -8,16 +8,12 @@
 
-

-  
Map Details

-  

-  

-

+

+

diff --git a/deps/v8/tools/system-analyzer/map-panel/map-details.mjs b/deps/v8/tools/system-analyzer/view/map-panel/map-details.mjs
similarity index 97%
rename from deps/v8/tools/system-analyzer/map-panel/map-details.mjs
rename to deps/v8/tools/system-analyzer/view/map-panel/map-details.mjs
index bcf8f9c9aa1867..446475a5b088cf 100644
--- a/deps/v8/tools/system-analyzer/map-panel/map-details.mjs
+++ b/deps/v8/tools/system-analyzer/view/map-panel/map-details.mjs
@@ -5,7 +5,7 @@ import {FocusEvent} from '../events.mjs';
 import {DOM, V8CustomElement} from '../helper.mjs';
 
 DOM.defineCustomElement(
-    './map-panel/map-details',
+    './view/map-panel/map-details',
     (templateText) => class MapDetails extends V8CustomElement {
       _map;
 
diff --git a/deps/v8/tools/system-analyzer/map-panel/map-transitions-template.html b/deps/v8/tools/system-analyzer/view/map-panel/map-transitions-template.html
similarity index 93%
rename from deps/v8/tools/system-analyzer/map-panel/map-transitions-template.html
rename to deps/v8/tools/system-analyzer/view/map-panel/map-transitions-template.html
index c4cab2bf46aae7..d5dcca07a78a2b 100644
--- a/deps/v8/tools/system-analyzer/map-panel/map-transitions-template.html
+++ b/deps/v8/tools/system-analyzer/view/map-panel/map-transitions-template.html
@@ -137,12 +137,4 @@
     padding-bottom: 10px;
   }
 
-

-  

-    
Transitions

-  

-  

-  

-    

-  

-

+

diff --git a/deps/v8/tools/system-analyzer/view/map-panel/map-transitions.mjs b/deps/v8/tools/system-analyzer/view/map-panel/map-transitions.mjs
new file mode 100644
index 00000000000000..f60bd37d3929b7
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/map-panel/map-transitions.mjs
@@ -0,0 +1,181 @@
+// Copyright 2020 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+import {FocusEvent, SelectRelatedEvent, ToolTipEvent} from '../events.mjs';
+import {CSSColor} from '../helper.mjs';
+import {DOM, V8CustomElement} from '../helper.mjs';
+
+DOM.defineCustomElement(
+    './view/map-panel/map-transitions',
+    (templateText) => class MapTransitions extends V8CustomElement {
+      _timeline;
+      _map;
+      _edgeToColor = new Map();
+      _selectedLogEntries;
+      _displayedMapsInTree;
+      _toggleSubtreeHandler = this._handleToggleSubtree.bind(this);
+      _mapClickHandler = this._handleMapClick.bind(this);
+      _mapDoubleClickHandler = this._handleMapDoubleClick.bind(this);
+      _mouseoverMapHandler = this._handleMouseoverMap.bind(this);
+
+      constructor() {
+        super(templateText);
+        this.currentNode = this.transitionView;
+      }
+
+      get transitionView() {
+        return this.$('#transitionView');
+      }
+
+      set timeline(timeline) {
+        this._timeline = timeline;
+        this._edgeToColor.clear();
+        timeline.getBreakdown().forEach(breakdown => {
+          this._edgeToColor.set(breakdown.key, CSSColor.at(breakdown.id));
+        });
+      }
+
+      set selectedLogEntries(list) {
+        this._selectedLogEntries = list;
+        this.update();
+      }
+
+      _update() {
+        this.transitionView.style.display = 'none';
+        DOM.removeAllChildren(this.transitionView);
+        if (this._selectedLogEntries.length == 0) return;
+        this._displayedMapsInTree = new Set();
+        // Limit view to 200 maps for performance reasons.
+        this._selectedLogEntries.slice(0, 200).forEach(
+            (map) => this._addMapAndParentTransitions(map));
+        this._displayedMapsInTree = undefined;
+        this.transitionView.style.display = '';
+      }
+
+      _addMapAndParentTransitions(map) {
+        if (map === undefined) return;
+        if (this._displayedMapsInTree.has(map)) return;
+        this._displayedMapsInTree.add(map);
+        this.currentNode = this.transitionView;
+        let parents = map.getParents();
+        if (parents.length > 0) {
+          this._addTransitionTo(parents.pop());
+          parents.reverse().forEach((each) => this._addTransitionTo(each));
+        }
+        let mapNode = this._addSubtransitions(map);
+        // Mark and show the selected map.
+        mapNode.classList.add('selected');
+        if (this.selectedMap == map) {
+          setTimeout(
+              () => mapNode.scrollIntoView({
+                behavior: 'smooth',
+                block: 'nearest',
+                inline: 'nearest',
+              }),
+              1);
+        }
+      }
+
+      _addSubtransitions(map) {
+        let mapNode = this._addTransitionTo(map);
+        // Draw outgoing linear transition line.
+        let current = map;
+        while (current.children.length == 1) {
+          current = current.children[0].to;
+          this._addTransitionTo(current);
+        }
+        return mapNode;
+      }
+
+      _addTransitionEdge(map) {
+        let classes = ['transitionEdge'];
+        let edge = DOM.div(classes);
+        edge.style.backgroundColor = this._edgeToColor.get(map.edge.type);
+        let labelNode = DOM.div('transitionLabel');
+        labelNode.innerText = map.edge.toString();
+        edge.appendChild(labelNode);
+        return edge;
+      }
+
+      _addTransitionTo(map) {
+        // transition[ transitions[ transition[...], transition[...], ...]];
+        this._displayedMapsInTree?.add(map);
+        let transition = DOM.div('transition');
+        if (map.isDeprecated()) transition.classList.add('deprecated');
+        if (map.edge) {
+          transition.appendChild(this._addTransitionEdge(map));
+        }
+        let mapNode = this._addMapNode(map);
+        transition.appendChild(mapNode);
+
+        let subtree = DOM.div('transitions');
+        transition.appendChild(subtree);
+
+        this.currentNode.appendChild(transition);
+        this.currentNode = subtree;
+
+        return mapNode;
+      }
+
+      _addMapNode(map) {
+        let node = DOM.div('map');
+        if (map.edge)
+          node.style.backgroundColor = this._edgeToColor.get(map.edge.type);
+        node.map = map;
+        node.onclick = this._mapClickHandler
+        node.ondblclick = this._mapDoubleClickHandler
+        node.onmouseover = this._mouseoverMapHandler
+        if (map.children.length > 1) {
+          node.innerText = map.children.length;
+          const showSubtree = DOM.div('showSubtransitions');
+          showSubtree.onclick = this._toggleSubtreeHandler
+          node.appendChild(showSubtree);
+        }
+        else if (map.children.length == 0) {
+          node.innerHTML = '●';
+        }
+        this.currentNode.appendChild(node);
+        return node;
+      }
+
+      _handleMapClick(event) {
+        const map = event.currentTarget.map;
+        this.dispatchEvent(new FocusEvent(map));
+      }
+
+      _handleMapDoubleClick(event) {
+        this.dispatchEvent(new SelectRelatedEvent(event.currentTarget.map));
+      }
+
+      _handleMouseoverMap(event) {
+        this.dispatchEvent(new ToolTipEvent(
+            event.currentTarget.map.toStringLong(), event.currentTarget));
+      }
+
+      _handleToggleSubtree(event) {
+        event.preventDefault();
+        const node = event.currentTarget.parentElement;
+        let map = node.map;
+        event.target.classList.toggle('opened');
+        let transitionsNode = node.parentElement.querySelector('.transitions');
+        let subtransitionNodes = transitionsNode.children;
+        if (subtransitionNodes.length <= 1) {
+          // Add subtransitions except the one that's already shown.
+          let visibleTransitionMap = subtransitionNodes.length == 1 ?
+              transitionsNode.querySelector('.map').map :
+              undefined;
+          map.children.forEach((edge) => {
+            if (edge.to != visibleTransitionMap) {
+              this.currentNode = transitionsNode;
+              this._addSubtransitions(edge.to);
+            }
+          });
+        } else {
+          // remove all but the first (currently selected) subtransition
+          for (let i = subtransitionNodes.length - 1; i > 0; i--) {
+            transitionsNode.removeChild(subtransitionNodes[i]);
+          }
+        }
+        return false;
+      }
+    });
diff --git a/deps/v8/tools/system-analyzer/view/script-panel-template.html b/deps/v8/tools/system-analyzer/view/script-panel-template.html
new file mode 100644
index 00000000000000..27fd3d83eb6e31
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/script-panel-template.html
@@ -0,0 +1,72 @@
+
+
+
+  
+
+
+

+  
Source Panel

+  

+    
+    
+  

+  

+    

+  

+

diff --git a/deps/v8/tools/system-analyzer/source-panel.mjs b/deps/v8/tools/system-analyzer/view/script-panel.mjs
similarity index 67%
rename from deps/v8/tools/system-analyzer/source-panel.mjs
rename to deps/v8/tools/system-analyzer/view/script-panel.mjs
index a4dc07fb451cab..b0dac6960c3a46 100644
--- a/deps/v8/tools/system-analyzer/source-panel.mjs
+++ b/deps/v8/tools/system-analyzer/view/script-panel.mjs
@@ -1,22 +1,26 @@
 // Copyright 2020 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
-import {FocusEvent, SelectionEvent} from './events.mjs';
-import {delay, DOM, formatBytes, V8CustomElement} from './helper.mjs';
-import {IcLogEntry} from './log/ic.mjs';
-import {MapLogEntry} from './log/map.mjs';
+import {groupBy} from '../helper.mjs';
+import {App} from '../index.mjs'
 
-DOM.defineCustomElement('source-panel',
+import {SelectRelatedEvent, ToolTipEvent} from './events.mjs';
+import {CSSColor, delay, DOM, formatBytes, gradientStopsFromGroups, V8CustomElement} from './helper.mjs';
+
+DOM.defineCustomElement('view/script-panel',
                         (templateText) =>
                             class SourcePanel extends V8CustomElement {
   _selectedSourcePositions = [];
-  _sourcePositionsToMarkNodes;
+  _sourcePositionsToMarkNodes = [];
   _scripts = [];
   _script;
+
   constructor() {
     super(templateText);
     this.scriptDropdown.addEventListener(
         'change', e => this._handleSelectScript(e));
+    this.$('#selectedRelatedButton').onclick =
+        this._handleSelectRelated.bind(this);
   }
 
   get script() {
@@ -41,7 +45,11 @@ DOM.defineCustomElement('source-panel',
     this._focusSelectedMarkers();
   }
 
-  set data(scripts) {
+  set focusedSourcePositions(sourcePositions) {
+    this.selectedSourcePositions = sourcePositions;
+  }
+
+  set scripts(scripts) {
     this._scripts = scripts;
     this._initializeScriptDropdown();
   }
@@ -71,13 +79,13 @@ DOM.defineCustomElement('source-panel',
     let scriptNode;
     if (this._script) {
       await delay(1);
-      const builder =
-          new LineBuilder(this, this._script, this._selectedSourcePositions);
+      const builder = new LineBuilder(this, this._script);
       scriptNode = builder.createScriptNode();
       this._sourcePositionsToMarkNodes = builder.sourcePositionToMarkers;
     } else {
-      scriptNode = document.createElement('pre');
+      scriptNode = DOM.div();
       this._selectedMarkNodes = undefined;
+      this._sourcePositionsToMarkNodes = new Map();
     }
     const oldScriptNode = this.script.childNodes[1];
     this.script.replaceChild(scriptNode, oldScriptNode);
@@ -90,9 +98,15 @@ DOM.defineCustomElement('source-panel',
       markNode.className = '';
     }
     for (let sourcePosition of this._selectedSourcePositions) {
+      if (sourcePosition.script !== this._script) continue;
       this._sourcePositionsToMarkNodes.get(sourcePosition).className = 'marked';
     }
-    const sourcePosition = this._selectedSourcePositions[0];
+    this._scrollToFirstSourcePosition()
+  }
+
+  _scrollToFirstSourcePosition() {
+    const sourcePosition = this._selectedSourcePositions.find(
+        each => each.script === this._script);
     if (!sourcePosition) return;
     const markNode = this._sourcePositionsToMarkNodes.get(sourcePosition);
     markNode.scrollIntoView(
@@ -103,29 +117,32 @@ DOM.defineCustomElement('source-panel',
     const option =
         this.scriptDropdown.options[this.scriptDropdown.selectedIndex];
     this.script = option.script;
-    this.selectLogEntries(this._script.entries());
+  }
+
+  _handleSelectRelated(e) {
+    if (!this._script) return;
+    this.dispatchEvent(new SelectRelatedEvent(this._script));
   }
 
   handleSourcePositionClick(e) {
-    this.selectLogEntries(e.target.sourcePosition.entries)
-  }
-
-  selectLogEntries(logEntries) {
-    let icLogEntries = [];
-    let mapLogEntries = [];
-    for (const entry of logEntries) {
-      if (entry instanceof MapLogEntry) {
-        mapLogEntries.push(entry);
-      } else if (entry instanceof IcLogEntry) {
-        icLogEntries.push(entry);
-      }
-    }
-    if (icLogEntries.length > 0) {
-      this.dispatchEvent(new SelectionEvent(icLogEntries));
-    }
-    if (mapLogEntries.length > 0) {
-      this.dispatchEvent(new SelectionEvent(mapLogEntries));
-    }
+    const sourcePosition = e.target.sourcePosition;
+    this.dispatchEvent(new SelectRelatedEvent(sourcePosition));
+  }
+
+  handleSourcePositionMouseOver(e) {
+    const entries = e.target.sourcePosition.entries;
+    let text = groupBy(entries, each => each.constructor, true)
+                   .map(group => {
+                     let text = `${group.key.name}: ${group.count}\n`
+                     text += groupBy(group.entries, each => each.type, true)
+                                 .map(group => {
+                                   return `  - ${group.key}: ${group.count}`;
+                                 })
+                                 .join('\n');
+                     return text;
+                   })
+                   .join('\n');
+    this.dispatchEvent(new ToolTipEvent(text, e.target));
   }
 });
 
@@ -177,16 +194,28 @@ function* lineIterator(source) {
 }
 
 class LineBuilder {
+  static _colorMap = (function() {
+    const map = new Map();
+    let i = 0;
+    for (let type of App.allEventTypes) {
+      map.set(type, CSSColor.at(i++));
+    }
+    return map;
+  })();
+  static get colorMap() {
+    return this._colorMap;
+  }
+
   _script;
   _clickHandler;
+  _mouseoverHandler;
   _sourcePositions;
-  _selection;
   _sourcePositionToMarkers = new Map();
 
-  constructor(panel, script, highlightPositions) {
+  constructor(panel, script) {
     this._script = script;
-    this._selection = new Set(highlightPositions);
     this._clickHandler = panel.handleSourcePositionClick.bind(panel);
+    this._mouseoverHandler = panel.handleSourcePositionMouseOver.bind(panel);
     // TODO: sort on script finalization.
     script.sourcePositions.sort((a, b) => {
       if (a.line === b.line) return a.column - b.column;
@@ -200,8 +229,7 @@ class LineBuilder {
   }
 
   createScriptNode() {
-    const scriptNode = document.createElement('pre');
-    scriptNode.classList.add('scriptNode');
+    const scriptNode = DOM.div('scriptNode');
     for (let [lineIndex, line] of lineIterator(this._script.source)) {
       scriptNode.appendChild(this._createLineNode(lineIndex, line));
     }
@@ -209,7 +237,7 @@ class LineBuilder {
   }
 
   _createLineNode(lineIndex, line) {
-    const lineNode = document.createElement('span');
+    const lineNode = DOM.span();
     let columnIndex = 0;
     for (const sourcePosition of this._sourcePositions.forLine(lineIndex)) {
       const nextColumnIndex = sourcePosition.column - 1;
@@ -232,6 +260,14 @@ class LineBuilder {
     marker.textContent = text;
     marker.sourcePosition = sourcePosition;
     marker.onclick = this._clickHandler;
+    marker.onmouseover = this._mouseoverHandler;
+
+    const entries = sourcePosition.entries;
+    const stops = gradientStopsFromGroups(
+        entries.length, '%', groupBy(entries, entry => entry.constructor),
+        type => LineBuilder.colorMap.get(type));
+    marker.style.backgroundImage = `linear-gradient(0deg,${stops.join(',')})`
+
     return marker;
   }
-}
\ No newline at end of file
+}
diff --git a/deps/v8/tools/system-analyzer/view/timeline-panel-template.html b/deps/v8/tools/system-analyzer/view/timeline-panel-template.html
new file mode 100644
index 00000000000000..da0ce26380907c
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/timeline-panel-template.html
@@ -0,0 +1,29 @@
+
+
+
+  
+  
+
+

+  
Timeline Panel

+  

+  

+    
+  

+

diff --git a/deps/v8/tools/system-analyzer/timeline-panel.mjs b/deps/v8/tools/system-analyzer/view/timeline-panel.mjs
similarity index 98%
rename from deps/v8/tools/system-analyzer/timeline-panel.mjs
rename to deps/v8/tools/system-analyzer/view/timeline-panel.mjs
index a61d2efc90570b..331db401e96db9 100644
--- a/deps/v8/tools/system-analyzer/timeline-panel.mjs
+++ b/deps/v8/tools/system-analyzer/view/timeline-panel.mjs
@@ -8,7 +8,7 @@ import {SynchronizeSelectionEvent} from './events.mjs';
 import {DOM, V8CustomElement} from './helper.mjs';
 
 DOM.defineCustomElement(
-    'timeline-panel',
+    'view/timeline-panel',
     (templateText) => class TimelinePanel extends V8CustomElement {
       constructor() {
         super(templateText);
diff --git a/deps/v8/tools/system-analyzer/view/timeline/timeline-track-template.html b/deps/v8/tools/system-analyzer/view/timeline/timeline-track-template.html
new file mode 100644
index 00000000000000..b27ad66b59a7d0
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/timeline/timeline-track-template.html
@@ -0,0 +1,205 @@
+
+
+
+  
+
+
+
+

+  
+  
+  

+
+  

+    

+      

+      

+      

+    

+    
Frequency

+    

+    
+  

+
+  

+    
+      
+        
+          
+          
+          
+        
+      
+      
+    
TypeCountPercent

+  

+

\ No newline at end of file
diff --git a/deps/v8/tools/system-analyzer/view/timeline/timeline-track.mjs b/deps/v8/tools/system-analyzer/view/timeline/timeline-track.mjs
new file mode 100644
index 00000000000000..60216af2eef4b7
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/timeline/timeline-track.mjs
@@ -0,0 +1,605 @@
+// Copyright 2020 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import {kChunkHeight, kChunkWidth} from '../../log/map.mjs';
+import {MapLogEntry} from '../../log/map.mjs';
+import {FocusEvent, SelectionEvent, SelectTimeEvent, SynchronizeSelectionEvent, ToolTipEvent,} from '../events.mjs';
+import {CSSColor, DOM, gradientStopsFromGroups, V8CustomElement} from '../helper.mjs';
+
+DOM.defineCustomElement('view/timeline/timeline-track',
+                        (templateText) =>
+                            class TimelineTrack extends V8CustomElement {
+  _timeline;
+  _nofChunks = 400;
+  _chunks;
+  _selectedEntry;
+  _timeToPixel;
+  _timeStartOffset;
+  _legend;
+
+  _chunkMouseMoveHandler = this._handleChunkMouseMove.bind(this);
+  _chunkClickHandler = this._handleChunkClick.bind(this);
+  _chunkDoubleClickHandler = this._handleChunkDoubleClick.bind(this);
+
+  constructor() {
+    super(templateText);
+    this._selectionHandler = new SelectionHandler(this);
+    this._legend = new Legend(this.$('#legendTable'));
+    this._legend.onFilter = (type) => this._handleFilterTimeline();
+    this.timelineNode.addEventListener(
+        'scroll', e => this._handleTimelineScroll(e));
+    this.timelineNode.ondblclick = (e) =>
+        this._selectionHandler.clearSelection();
+    this.isLocked = false;
+  }
+
+  static get observedAttributes() {
+    return ['title'];
+  }
+
+  attributeChangedCallback(name, oldValue, newValue) {
+    if (name == 'title') {
+      this.$('#title').innerHTML = newValue;
+    }
+  }
+
+  _handleFilterTimeline(type) {
+    this._updateChunks();
+  }
+
+  set data(timeline) {
+    this._timeline = timeline;
+    this._legend.timeline = timeline;
+    this.$('.content').style.display = timeline.isEmpty() ? 'none' : 'relative';
+    this._updateChunks();
+  }
+
+  set timeSelection(selection) {
+    this._selectionHandler.timeSelection = selection;
+    this.updateSelection();
+  }
+
+  updateSelection() {
+    this._selectionHandler.update();
+    this._legend.update();
+  }
+
+  // Maps the clicked x position to the x position on timeline canvas
+  positionOnTimeline(posX) {
+    let rect = this.timelineNode.getBoundingClientRect();
+    let posClickedX = posX - rect.left + this.timelineNode.scrollLeft;
+    return posClickedX;
+  }
+
+  positionToTime(posX) {
+    let posTimelineX = this.positionOnTimeline(posX) + this._timeStartOffset;
+    return posTimelineX / this._timeToPixel;
+  }
+
+  timeToPosition(time) {
+    let posX = time * this._timeToPixel;
+    posX -= this._timeStartOffset;
+    return posX;
+  }
+
+  get timelineCanvas() {
+    return this.$('#timelineCanvas');
+  }
+
+  get timelineChunks() {
+    return this.$('#timelineChunks');
+  }
+
+  get timelineNode() {
+    return this.$('#timeline');
+  }
+
+  _update() {
+    this._updateTimeline();
+    this._legend.update();
+  }
+
+  set nofChunks(count) {
+    this._nofChunks = count;
+    this._updateChunks();
+  }
+
+  get nofChunks() {
+    return this._nofChunks;
+  }
+
+  _updateChunks() {
+    this._chunks =
+        this._timeline.chunks(this.nofChunks, this._legend.filterPredicate);
+    this.update();
+  }
+
+  get chunks() {
+    return this._chunks;
+  }
+
+  set selectedEntry(value) {
+    this._selectedEntry = value;
+    if (value.edge) this.redraw();
+  }
+
+  get selectedEntry() {
+    return this._selectedEntry;
+  }
+
+  set scrollLeft(offset) {
+    this.timelineNode.scrollLeft = offset;
+  }
+
+  handleEntryTypeDoubleClick(e) {
+    this.dispatchEvent(new SelectionEvent(e.target.parentNode.entries));
+  }
+
+  timelineIndicatorMove(offset) {
+    this.timelineNode.scrollLeft += offset;
+  }
+
+  _handleTimelineScroll(e) {
+    let horizontal = e.currentTarget.scrollLeft;
+    this.dispatchEvent(new CustomEvent(
+        'scrolltrack', {bubbles: true, composed: true, detail: horizontal}));
+  }
+
+  _createBackgroundImage(chunk) {
+    const stops = gradientStopsFromGroups(
+        chunk.length, chunk.height, chunk.getBreakdown(event => event.type),
+        type => this._legend.colorForType(type));
+    return `linear-gradient(0deg,${stops.join(',')})`;
+  }
+
+  _updateTimeline() {
+    const reusableNodes = Array.from(this.timelineChunks.childNodes).reverse();
+    let fragment = new DocumentFragment();
+    let chunks = this.chunks;
+    let max = chunks.max(each => each.size());
+    let start = this._timeline.startTime;
+    let end = this._timeline.endTime;
+    let duration = end - start;
+    this._timeToPixel = chunks.length * kChunkWidth / duration;
+    this._timeStartOffset = start * this._timeToPixel;
+    for (let i = 0; i < chunks.length; i++) {
+      let chunk = chunks[i];
+      let height = (chunk.size() / max * kChunkHeight);
+      chunk.height = height;
+      if (chunk.isEmpty()) continue;
+      let node = reusableNodes[reusableNodes.length - 1];
+      let reusedNode = false;
+      if (node?.className == 'chunk') {
+        reusableNodes.pop();
+        reusedNode = true;
+      } else {
+        node = DOM.div('chunk');
+        node.onmousemove = this._chunkMouseMoveHandler;
+        node.onclick = this._chunkClickHandler;
+        node.ondblclick = this._chunkDoubleClickHandler;
+      }
+      const style = node.style;
+      style.left = `${((chunk.start - start) * this._timeToPixel) | 0}px`;
+      style.height = `${height | 0}px`;
+      style.backgroundImage = this._createBackgroundImage(chunk);
+      node.chunk = chunk;
+      if (!reusedNode) fragment.appendChild(node);
+    }
+
+    // Put a time marker roughly every 20 chunks.
+    let expected = duration / chunks.length * 20;
+    let interval = (10 ** Math.floor(Math.log10(expected)));
+    let correction = Math.log10(expected / interval);
+    correction = (correction < 0.33) ? 1 : (correction < 0.75) ? 2.5 : 5;
+    interval *= correction;
+
+    let time = start;
+    while (time < end) {
+      let timeNode = DOM.div('timestamp');
+      timeNode.innerText = `${((time - start) / 1000) | 0} ms`;
+      timeNode.style.left = `${((time - start) * this._timeToPixel) | 0}px`;
+      fragment.appendChild(timeNode);
+      time += interval;
+    }
+
+    // Remove superfluos nodes lazily, for Chrome this is a very expensive
+    // operation.
+    if (reusableNodes.length > 0) {
+      for (const node of reusableNodes) {
+        node.style.display = 'none';
+      }
+      setTimeout(() => {
+        const range = document.createRange();
+        const first = reusableNodes[reusableNodes.length - 1];
+        const last = reusableNodes[0];
+        range.setStartBefore(first);
+        range.setEndAfter(last);
+        range.deleteContents();
+      }, 100);
+    }
+    this.timelineChunks.appendChild(fragment);
+    this.redraw();
+  }
+
+  _handleChunkMouseMove(event) {
+    if (this.isLocked) return false;
+    if (this._selectionHandler.isSelecting) return false;
+    let chunk = event.target.chunk;
+    if (!chunk) return;
+    if (chunk.isEmpty()) return;
+    // topmost map (at chunk.height) == map #0.
+    let relativeIndex = Math.round(
+        event.layerY / event.target.offsetHeight * (chunk.size() - 1));
+    let logEntry = chunk.at(relativeIndex);
+    this.dispatchEvent(new FocusEvent(logEntry));
+    this.dispatchEvent(new ToolTipEvent(logEntry.toStringLong(), event.target));
+  }
+
+  _handleChunkClick(event) {
+    this.isLocked = !this.isLocked;
+  }
+
+  _handleChunkDoubleClick(event) {
+    let chunk = event.target.chunk;
+    if (!chunk) return;
+    event.stopPropagation();
+    this.dispatchEvent(new SelectTimeEvent(chunk.start, chunk.end));
+  }
+
+  redraw() {
+    window.requestAnimationFrame(() => this._redraw());
+  }
+
+  _redraw() {
+    if (!(this._timeline.at(0) instanceof MapLogEntry)) return;
+    let canvas = this.timelineCanvas;
+    let width = (this.chunks.length + 1) * kChunkWidth;
+    if (width > 32767) width = 32767;
+    canvas.width = width;
+    canvas.height = kChunkHeight;
+    let ctx = canvas.getContext('2d');
+    ctx.clearRect(0, 0, canvas.width, kChunkHeight);
+    if (!this.selectedEntry || !this.selectedEntry.edge) return;
+    this.drawEdges(ctx);
+  }
+
+  setMapStyle(map, ctx) {
+    ctx.fillStyle = map.edge && map.edge.from ? CSSColor.onBackgroundColor :
+                                                CSSColor.onPrimaryColor;
+  }
+
+  setEdgeStyle(edge, ctx) {
+    let color = this._legend.colorForType(edge.type);
+    ctx.strokeStyle = color;
+    ctx.fillStyle = color;
+  }
+
+  markMap(ctx, map) {
+    let [x, y] = map.position(this.chunks);
+    ctx.beginPath();
+    this.setMapStyle(map, ctx);
+    ctx.arc(x, y, 3, 0, 2 * Math.PI);
+    ctx.fill();
+    ctx.beginPath();
+    ctx.fillStyle = CSSColor.onBackgroundColor;
+    ctx.arc(x, y, 2, 0, 2 * Math.PI);
+    ctx.fill();
+  }
+
+  markSelectedMap(ctx, map) {
+    let [x, y] = map.position(this.chunks);
+    ctx.beginPath();
+    this.setMapStyle(map, ctx);
+    ctx.arc(x, y, 6, 0, 2 * Math.PI);
+    ctx.strokeStyle = CSSColor.onBackgroundColor;
+    ctx.stroke();
+  }
+
+  drawEdges(ctx) {
+    // Draw the trace of maps in reverse order to make sure the outgoing
+    // transitions of previous maps aren't drawn over.
+    const kMaxOutgoingEdges = 100;
+    let nofEdges = 0;
+    let stack = [];
+    let current = this.selectedEntry;
+    while (current && nofEdges < kMaxOutgoingEdges) {
+      nofEdges += current.children.length;
+      stack.push(current);
+      current = current.parent();
+    }
+    ctx.save();
+    this.drawOutgoingEdges(ctx, this.selectedEntry, 3);
+    ctx.restore();
+
+    let labelOffset = 15;
+    let xPrev = 0;
+    while (current = stack.pop()) {
+      if (current.edge) {
+        this.setEdgeStyle(current.edge, ctx);
+        let [xTo, yTo] = this.drawEdge(ctx, current.edge, true, labelOffset);
+        if (xTo == xPrev) {
+          labelOffset += 8;
+        } else {
+          labelOffset = 15
+        }
+        xPrev = xTo;
+      }
+      this.markMap(ctx, current);
+      current = current.parent();
+      ctx.save();
+      // this.drawOutgoingEdges(ctx, current, 1);
+      ctx.restore();
+    }
+    // Mark selected map
+    this.markSelectedMap(ctx, this.selectedEntry);
+  }
+
+  drawEdge(ctx, edge, showLabel = true, labelOffset = 20) {
+    if (!edge.from || !edge.to) return [-1, -1];
+    let [xFrom, yFrom] = edge.from.position(this.chunks);
+    let [xTo, yTo] = edge.to.position(this.chunks);
+    let sameChunk = xTo == xFrom;
+    if (sameChunk) labelOffset += 8;
+
+    ctx.beginPath();
+    ctx.moveTo(xFrom, yFrom);
+    let offsetX = 20;
+    let offsetY = 20;
+    let midX = xFrom + (xTo - xFrom) / 2;
+    let midY = (yFrom + yTo) / 2 - 100;
+    if (!sameChunk) {
+      ctx.quadraticCurveTo(midX, midY, xTo, yTo);
+    } else {
+      ctx.lineTo(xTo, yTo);
+    }
+    if (!showLabel) {
+      ctx.stroke();
+    } else {
+      let centerX, centerY;
+      if (!sameChunk) {
+        centerX = (xFrom / 2 + midX + xTo / 2) / 2;
+        centerY = (yFrom / 2 + midY + yTo / 2) / 2;
+      } else {
+        centerX = xTo;
+        centerY = yTo;
+      }
+      ctx.moveTo(centerX, centerY);
+      ctx.lineTo(centerX + offsetX, centerY - labelOffset);
+      ctx.stroke();
+      ctx.textAlign = 'left';
+      ctx.fillStyle = this._legend.colorForType(edge.type);
+      ctx.fillText(
+          edge.toString(), centerX + offsetX + 2, centerY - labelOffset);
+    }
+    return [xTo, yTo];
+  }
+
+  drawOutgoingEdges(ctx, map, max = 10, depth = 0) {
+    if (!map) return;
+    if (depth >= max) return;
+    ctx.globalAlpha = 0.5 - depth * (0.3 / max);
+    ctx.strokeStyle = CSSColor.timelineBackgroundColor;
+    const limit = Math.min(map.children.length, 100)
+    for (let i = 0; i < limit; i++) {
+      let edge = map.children[i];
+      this.drawEdge(ctx, edge, true);
+      this.drawOutgoingEdges(ctx, edge.to, max, depth + 1);
+    }
+  }
+});
+
+class SelectionHandler {
+  // TODO turn into static field once Safari supports it.
+  static get SELECTION_OFFSET() {
+    return 10
+  };
+
+  _timeSelection = {start: -1, end: Infinity};
+  _selectionOriginTime = -1;
+
+  constructor(timeline) {
+    this._timeline = timeline;
+    this._timelineNode.addEventListener(
+        'mousedown', e => this._handleTimeSelectionMouseDown(e));
+    this._timelineNode.addEventListener(
+        'mouseup', e => this._handleTimeSelectionMouseUp(e));
+    this._timelineNode.addEventListener(
+        'mousemove', e => this._handleTimeSelectionMouseMove(e));
+  }
+
+  update() {
+    if (!this.hasSelection) {
+      this._selectionNode.style.display = 'none';
+      return;
+    }
+    this._selectionNode.style.display = 'inherit';
+    const startPosition = this.timeToPosition(this._timeSelection.start);
+    const endPosition = this.timeToPosition(this._timeSelection.end);
+    this._leftHandleNode.style.left = startPosition + 'px';
+    this._rightHandleNode.style.left = endPosition + 'px';
+    const delta = endPosition - startPosition;
+    const selectionNode = this._selectionBackgroundNode;
+    selectionNode.style.left = startPosition + 'px';
+    selectionNode.style.width = delta + 'px';
+  }
+
+  set timeSelection(selection) {
+    this._timeSelection.start = selection.start;
+    this._timeSelection.end = selection.end;
+  }
+
+  clearSelection() {
+    this._timeline.dispatchEvent(new SelectTimeEvent());
+  }
+
+  timeToPosition(posX) {
+    return this._timeline.timeToPosition(posX);
+  }
+
+  positionToTime(posX) {
+    return this._timeline.positionToTime(posX);
+  }
+
+  get isSelecting() {
+    return this._selectionOriginTime >= 0;
+  }
+
+  get hasSelection() {
+    return this._timeSelection.start >= 0 &&
+        this._timeSelection.end != Infinity;
+  }
+
+  get _timelineNode() {
+    return this._timeline.$('#timeline');
+  }
+
+  get _selectionNode() {
+    return this._timeline.$('#selection');
+  }
+
+  get _selectionBackgroundNode() {
+    return this._timeline.$('#selectionBackground');
+  }
+
+  get _leftHandleNode() {
+    return this._timeline.$('#leftHandle');
+  }
+
+  get _rightHandleNode() {
+    return this._timeline.$('#rightHandle');
+  }
+
+  get _leftHandlePosX() {
+    return this._leftHandleNode.getBoundingClientRect().x;
+  }
+
+  get _rightHandlePosX() {
+    return this._rightHandleNode.getBoundingClientRect().x;
+  }
+
+  _isOnLeftHandle(posX) {
+    return Math.abs(this._leftHandlePosX - posX) <=
+        SelectionHandler.SELECTION_OFFSET;
+  }
+
+  _isOnRightHandle(posX) {
+    return Math.abs(this._rightHandlePosX - posX) <=
+        SelectionHandler.SELECTION_OFFSET;
+  }
+
+  _handleTimeSelectionMouseDown(e) {
+    let xPosition = e.clientX
+    // Update origin time in case we click on a handle.
+    if (this._isOnLeftHandle(xPosition)) {
+      xPosition = this._rightHandlePosX;
+    }
+    else if (this._isOnRightHandle(xPosition)) {
+      xPosition = this._leftHandlePosX;
+    }
+    this._selectionOriginTime = this.positionToTime(xPosition);
+  }
+
+  _handleTimeSelectionMouseMove(e) {
+    if (!this.isSelecting) return;
+    const currentTime = this.positionToTime(e.clientX);
+    this._timeline.dispatchEvent(new SynchronizeSelectionEvent(
+        Math.min(this._selectionOriginTime, currentTime),
+        Math.max(this._selectionOriginTime, currentTime)));
+  }
+
+  _handleTimeSelectionMouseUp(e) {
+    this._selectionOriginTime = -1;
+    const delta = this._timeSelection.end - this._timeSelection.start;
+    if (delta <= 1 || isNaN(delta)) return;
+    this._timeline.dispatchEvent(new SelectTimeEvent(
+        this._timeSelection.start, this._timeSelection.end));
+  }
+}
+
+class Legend {
+  _timeline;
+  _typesFilters = new Map();
+  _typeClickHandler = this._handleTypeClick.bind(this);
+  _filterPredicate = this.filter.bind(this);
+  onFilter = () => {};
+
+  constructor(table) {
+    this._table = table;
+  }
+
+  set timeline(timeline) {
+    this._timeline = timeline;
+    const groups = timeline.getBreakdown();
+    this._typesFilters = new Map(groups.map(each => [each.key, true]));
+    this._colors =
+        new Map(groups.map(each => [each.key, CSSColor.at(each.id)]));
+  }
+
+  get selection() {
+    return this._timeline.selectionOrSelf;
+  }
+
+  get filterPredicate() {
+    for (let visible of this._typesFilters.values()) {
+      if (!visible) return this._filterPredicate;
+    }
+    return undefined;
+  }
+
+  colorForType(type) {
+    return this._colors.get(type);
+  }
+
+  filter(logEntry) {
+    return this._typesFilters.get(logEntry.type);
+  }
+
+  update() {
+    const tbody = DOM.tbody();
+    const missingTypes = new Set(this._typesFilters.keys());
+    this.selection.getBreakdown().forEach(group => {
+      tbody.appendChild(this._addTypeRow(group));
+      missingTypes.delete(group.key);
+    });
+    missingTypes.forEach(key => tbody.appendChild(this._row('', key, 0, '0%')));
+    if (this._timeline.selection) {
+      tbody.appendChild(
+          this._row('', 'Selection', this.selection.length, '100%'));
+    }
+    tbody.appendChild(this._row('', 'All', this._timeline.length, ''));
+    this._table.tBodies[0].replaceWith(tbody);
+  }
+
+  _row(color, type, count, percent) {
+    const row = DOM.tr();
+    row.appendChild(DOM.td(color));
+    row.appendChild(DOM.td(type));
+    row.appendChild(DOM.td(count.toString()));
+    row.appendChild(DOM.td(percent));
+    return row
+  }
+
+  _addTypeRow(group) {
+    const color = this.colorForType(group.key);
+    const colorDiv = DOM.div('colorbox');
+    if (this._typesFilters.get(group.key)) {
+      colorDiv.style.backgroundColor = color;
+    } else {
+      colorDiv.style.borderColor = color;
+      colorDiv.style.backgroundColor = CSSColor.backgroundImage;
+    }
+    let percent = `${(group.count / this.selection.length * 100).toFixed(1)}%`;
+    const row = this._row(colorDiv, group.key, group.count, percent);
+    row.className = 'clickable';
+    row.onclick = this._typeClickHandler;
+    row.data = group.key;
+    return row;
+  }
+
+  _handleTypeClick(e) {
+    const type = e.currentTarget.data;
+    this._typesFilters.set(type, !this._typesFilters.get(type));
+    this.onFilter(type);
+  }
+}
\ No newline at end of file
diff --git a/deps/v8/tools/system-analyzer/view/tool-tip-template.html b/deps/v8/tools/system-analyzer/view/tool-tip-template.html
new file mode 100644
index 00000000000000..b0e9c72c45cdf6
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/tool-tip-template.html
@@ -0,0 +1,81 @@
+
+
+  
+
+
+
+

+  

+  

+  

+

diff --git a/deps/v8/tools/system-analyzer/view/tool-tip.mjs b/deps/v8/tools/system-analyzer/view/tool-tip.mjs
new file mode 100644
index 00000000000000..896c04dd29857f
--- /dev/null
+++ b/deps/v8/tools/system-analyzer/view/tool-tip.mjs
@@ -0,0 +1,110 @@
+// Copyright 2020 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import {DOM, V8CustomElement} from './helper.mjs';
+
+DOM.defineCustomElement(
+    'view/tool-tip', (templateText) => class Tooltip extends V8CustomElement {
+      _targetNode;
+      _content;
+      _isHidden = true;
+      constructor() {
+        super(templateText);
+        this._intersectionObserver = new IntersectionObserver((entries) => {
+          if (entries[0].intersectionRatio <= 0) {
+            this.hide();
+          } else {
+            this.show();
+            this.update(true);
+          }
+        });
+      }
+
+      _update() {
+        if (!this._targetNode || this._isHidden) return;
+        const rect = this._targetNode.getBoundingClientRect();
+        rect.x += rect.width / 2;
+        let atRight = this._useRight(rect.x);
+        let atBottom = this._useBottom(rect.y);
+        if (atBottom) {
+          rect.y += rect.height;
+        }
+        this._setPosition(rect, atRight, atBottom);
+        this.update(true);
+      }
+
+      set positionOrTargetNode(positionOrTargetNode) {
+        if (positionOrTargetNode.nodeType === undefined) {
+          this.position = positionOrTargetNode;
+        } else {
+          this.targetNode = positionOrTargetNode;
+        }
+      }
+
+      set targetNode(targetNode) {
+        this._intersectionObserver.disconnect();
+        this._targetNode = targetNode;
+        if (targetNode) {
+          this._intersectionObserver.observe(targetNode);
+          this.update(true);
+        }
+      }
+
+      set position(position) {
+        this._targetNode = undefined;
+        this._setPosition(
+            position, this._useRight(position.x), this._useBottom(position.y));
+      }
+
+      _setPosition(viewportPosition, atRight, atBottom) {
+        const horizontalMode = atRight ? 'right' : 'left';
+        const verticalMode = atBottom ? 'bottom' : 'top';
+        this.bodyNode.className = horizontalMode + ' ' + verticalMode;
+        const pageX = viewportPosition.x + window.scrollX;
+        this.style.left = `${pageX}px`;
+        const pageY = viewportPosition.y + window.scrollY;
+        this.style.top = `${pageY}px`;
+      }
+
+      _useBottom(viewportY) {
+        return viewportY <= 400;
+      }
+
+      _useRight(viewportX) {
+        return viewportX < document.documentElement.clientWidth / 2;
+      }
+
+      set content(content) {
+        if (!content) return this.hide();
+        this.show();
+        if (typeof content === 'string') {
+          this.contentNode.innerHTML = content;
+          this.contentNode.className = 'textContent';
+        } else {
+          const newContent = DOM.div();
+          newContent.appendChild(content);
+          this.contentNode.replaceWith(newContent);
+          newContent.id = 'content';
+        }
+      }
+
+      hide() {
+        this._isHidden = true;
+        this.bodyNode.style.display = 'none';
+        this.targetNode = undefined;
+      }
+
+      show() {
+        this.bodyNode.style.display = 'block';
+        this._isHidden = false;
+      }
+
+      get bodyNode() {
+        return this.$('#body');
+      }
+
+      get contentNode() {
+        return this.$('#content');
+      }
+    });
diff --git a/deps/v8/tools/testrunner/base_runner.py b/deps/v8/tools/testrunner/base_runner.py
index d3674a4f8b9ff8..54a9e61b160a92 100644
--- a/deps/v8/tools/testrunner/base_runner.py
+++ b/deps/v8/tools/testrunner/base_runner.py
@@ -351,9 +351,6 @@ def _add_parser_default_options(self, parser):
                       help="Path to a file for storing json results.")
     parser.add_option('--slow-tests-cutoff', type="int", default=100,
                       help='Collect N slowest tests')
-    parser.add_option("--junitout", help="File name of the JUnit output")
-    parser.add_option("--junittestsuite", default="v8tests",
-                      help="The testsuite name in the JUnit output file")
     parser.add_option("--exit-after-n-failures", type="int", default=100,
                       help="Exit after the first N failures instead of "
                            "running all tests. Pass 0 to disable this feature.")
@@ -760,9 +757,6 @@ def _get_shard_info(self, options):
 
   def _create_progress_indicators(self, test_count, options):
     procs = [PROGRESS_INDICATORS[options.progress]()]
-    if options.junitout:
-      procs.append(progress.JUnitTestProgressIndicator(options.junitout,
-                                                       options.junittestsuite))
     if options.json_test_results:
       procs.append(progress.JsonTestProgressIndicator(self.framework_name))
 
diff --git a/deps/v8/tools/testrunner/local/junit_output.py b/deps/v8/tools/testrunner/local/junit_output.py
deleted file mode 100644
index 52f31ec422a69b..00000000000000
--- a/deps/v8/tools/testrunner/local/junit_output.py
+++ /dev/null
@@ -1,49 +0,0 @@
-# Copyright 2013 the V8 project authors. All rights reserved.
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-#       notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-#       copyright notice, this list of conditions and the following
-#       disclaimer in the documentation and/or other materials provided
-#       with the distribution.
-#     * Neither the name of Google Inc. nor the names of its
-#       contributors may be used to endorse or promote products derived
-#       from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-import xml.etree.ElementTree as xml
-
-
-class JUnitTestOutput:
-  def __init__(self, test_suite_name):
-    self.root = xml.Element("testsuite")
-    self.root.attrib["name"] = test_suite_name
-
-  def HasRunTest(self, test_name, test_cmd, test_duration, test_failure):
-    testCaseElement = xml.Element("testcase")
-    testCaseElement.attrib["name"] = test_name
-    testCaseElement.attrib["cmd"] = test_cmd
-    testCaseElement.attrib["time"] = str(round(test_duration, 3))
-    if len(test_failure):
-      failureElement = xml.Element("failure")
-      failureElement.text = test_failure
-      testCaseElement.append(failureElement)
-    self.root.append(testCaseElement)
-
-  def FinishAndWrite(self, f):
-    xml.ElementTree(self.root).write(f, "UTF-8")
diff --git a/deps/v8/tools/testrunner/local/utils.py b/deps/v8/tools/testrunner/local/utils.py
index a6b92dc7566189..8fdc16b4bb736d 100644
--- a/deps/v8/tools/testrunner/local/utils.py
+++ b/deps/v8/tools/testrunner/local/utils.py
@@ -90,7 +90,8 @@ def GuessOS():
     return 'solaris'
   elif system == 'NetBSD':
     return 'netbsd'
-  elif system == 'AIX':
+  elif system in ['AIX', 'OS400']:
+    # OS400 runs an AIX emulator called PASE
     return 'aix'
   else:
     return None
diff --git a/deps/v8/tools/testrunner/local/variants.py b/deps/v8/tools/testrunner/local/variants.py
index 4236c1678a0882..69ca853de3f91f 100644
--- a/deps/v8/tools/testrunner/local/variants.py
+++ b/deps/v8/tools/testrunner/local/variants.py
@@ -53,12 +53,14 @@
 # implications defined in flag-definitions.h.
 INCOMPATIBLE_FLAGS_PER_VARIANT = {
   "assert_types": ["--no-assert-types"],
-  "jitless": ["--opt", "--liftoff", "--track-field-types", "--validate-asm"],
+  "jitless": ["--opt", "--always-opt", "--liftoff", "--track-field-types", "--validate-asm"],
   "no_wasm_traps": ["--wasm-trap-handler"],
-  "nooptimization": ["--opt", "--no-liftoff", "--predictable", "--wasm-tier-up"],
+  "nooptimization": ["--opt", "--always-opt", "--no-liftoff", "--wasm-tier-up"],
   "slow_path": ["--no-force-slow-path"],
+  "stress_concurrent_allocation": ["--single-threaded-gc", "--predictable"],
   "stress_incremental_marking": ["--no-stress-incremental-marking"],
-  "stress_js_bg_compile_wasm_code_gc": ["--no-stress-background-compile"],
+  "future": ["--parallel-compile-tasks"],
+  "stress_js_bg_compile_wasm_code_gc": ["--no-stress-background-compile", "--parallel-compile-tasks"],
   "stress": ["--no-stress-opt", "--always-opt", "--no-always-opt", "--liftoff", "--max-inlined-bytecode-size=*",
              "--max-inlined-bytecode-size-cumulative=*", "--stress-inline"],
   "turboprop": ["--interrupt-budget=*", "--no-turboprop"],
@@ -77,7 +79,8 @@
                + INCOMPATIBLE_FLAGS_PER_VARIANT["jitless"],
   "predictable": ["--liftoff", "--parallel-compile-tasks",
                   "--concurrent-recompilation",
-                  "--wasm-num-compilation-tasks=*"],
+                  "--wasm-num-compilation-tasks=*",
+                  "--stress-concurrent-allocation"],
 }
 
 # Flags that lead to a contradiction when a certain extra-flag is present.
@@ -92,7 +95,9 @@
   "--no-enable-sse3": ["--enable-sse3"],
   "--no-enable-sse4-1": ["--enable-sse4-1"],
   "--optimize-for-size": ["--max-semi-space-size=*"],
+  "--stress_concurrent_allocation": ["--single-threaded-gc", "--predictable"],
   "--stress-flush-bytecode": ["--no-stress-flush-bytecode"],
+  "--future": ["--parallel-compile-tasks"],
   "--stress-incremental-marking": INCOMPATIBLE_FLAGS_PER_VARIANT["stress_incremental_marking"],
 }
 
diff --git a/deps/v8/tools/testrunner/testproc/progress.py b/deps/v8/tools/testrunner/testproc/progress.py
index 634ef7c2f2e3c0..9ff943a5c2b4bd 100644
--- a/deps/v8/tools/testrunner/testproc/progress.py
+++ b/deps/v8/tools/testrunner/testproc/progress.py
@@ -15,7 +15,6 @@
 
 from . import base
 from . import util
-from ..local import junit_output
 
 
 def print_failure_header(test):
@@ -349,45 +348,6 @@ def _clear_line(self, last_length):
     print(("\r" + (" " * last_length) + "\r"), end='')
 
 
-class JUnitTestProgressIndicator(ProgressIndicator):
-  def __init__(self, junitout, junittestsuite):
-    super(JUnitTestProgressIndicator, self).__init__()
-    self._requirement = base.DROP_PASS_STDOUT
-
-    self.outputter = junit_output.JUnitTestOutput(junittestsuite)
-    if junitout:
-      self.outfile = open(junitout, "w")
-    else:
-      self.outfile = sys.stdout
-
-  def _on_result_for(self, test, result):
-    # TODO(majeski): Support for dummy/grouped results
-    fail_text = ""
-    output = result.output
-    if result.has_unexpected_output:
-      stdout = output.stdout.strip()
-      if len(stdout):
-        fail_text += "stdout:\n%s\n" % stdout
-      stderr = output.stderr.strip()
-      if len(stderr):
-        fail_text += "stderr:\n%s\n" % stderr
-      fail_text += "Command: %s" % result.cmd.to_string()
-      if output.HasCrashed():
-        fail_text += "exit code: %d\n--- CRASHED ---" % output.exit_code
-      if output.HasTimedOut():
-        fail_text += "--- TIMEOUT ---"
-    self.outputter.HasRunTest(
-        test_name=str(test),
-        test_cmd=result.cmd.to_string(relative=True),
-        test_duration=output.duration,
-        test_failure=fail_text)
-
-  def finished(self):
-    self.outputter.FinishAndWrite(self.outfile)
-    if self.outfile != sys.stdout:
-      self.outfile.close()
-
-
 class JsonTestProgressIndicator(ProgressIndicator):
   def __init__(self, framework_name):
     super(JsonTestProgressIndicator, self).__init__()
diff --git a/deps/v8/tools/tickprocessor.mjs b/deps/v8/tools/tickprocessor.mjs
index 5b746d943a5adc..54c37e68e0a0ec 100644
--- a/deps/v8/tools/tickprocessor.mjs
+++ b/deps/v8/tools/tickprocessor.mjs
@@ -31,11 +31,6 @@ import { Profile, JsonProfile } from "./profile.mjs";
 import { ViewBuilder } from "./profile_view.mjs";
 
 
-export function inherits(childCtor, parentCtor) {
-  childCtor.prototype.__proto__ = parentCtor.prototype;
-};
-
-
 class V8Profile extends Profile {
   static IC_RE =
       /^(LoadGlobalIC: )|(Handler: )|(?:CallIC|LoadIC|StoreIC)|(?:Builtin: (?:Keyed)?(?:Load|Store)IC_)/;
@@ -75,20 +70,8 @@ export function readFile(fileName) {
 }
 
 
-/**
- * Parser for dynamic code optimization state.
- */
-function parseState(s) {
-  switch (s) {
-  case "": return Profile.CodeState.COMPILED;
-  case "~": return Profile.CodeState.OPTIMIZABLE;
-  case "*": return Profile.CodeState.OPTIMIZED;
-  }
-  throw new Error(`unknown code state: ${s}`);
-}
-
-
-export function TickProcessor(
+export class TickProcessor extends LogReader {
+  constructor( 
     cppEntriesProvider,
     separateIc,
     separateBytecodes,
@@ -105,8 +88,10 @@ export function TickProcessor(
     onlySummary,
     runtimeTimerFilter,
     preprocessJson) {
-  this.preprocessJson = preprocessJson;
-  LogReader.call(this, {
+  super({},
+      timedRange,
+      pairwiseTimedRange);
+  this.dispatchTable_ = {
       'shared-library': { parsers: [parseString, parseInt, parseInt, parseInt],
           processor: this.processSharedLibrary },
       'code-creation': {
@@ -155,10 +140,10 @@ export function TickProcessor(
       // Obsolete row types.
       'code-allocate': null,
       'begin-code-region': null,
-      'end-code-region': null },
-      timedRange,
-      pairwiseTimedRange);
+      'end-code-region': null
+    };
 
+  this.preprocessJson = preprocessJson;
   this.cppEntriesProvider_ = cppEntriesProvider;
   this.callGraphSize_ = callGraphSize;
   this.ignoreUnknown_ = ignoreUnknown;
@@ -214,11 +199,10 @@ export function TickProcessor(
   this.generation_ = 1;
   this.currentProducerProfile_ = null;
   this.onlySummary_ = onlySummary;
-};
-inherits(TickProcessor, LogReader);
+}
 
 
-TickProcessor.VmStates = {
+static VmStates = {
   JS: 0,
   GC: 1,
   PARSER: 2,
@@ -230,7 +214,7 @@ TickProcessor.VmStates = {
 };
 
 
-TickProcessor.CodeTypes = {
+static CodeTypes = {
   CPP: 0,
   SHARED_LIB: 1
 };
@@ -238,56 +222,56 @@ TickProcessor.CodeTypes = {
 // codeTypes_ map because there can be zillions of them.
 
 
-TickProcessor.CALL_PROFILE_CUTOFF_PCT = 1.0;
+static CALL_PROFILE_CUTOFF_PCT = 1.0;
 
-TickProcessor.CALL_GRAPH_SIZE = 5;
+static CALL_GRAPH_SIZE = 5;
 
 /**
  * @override
  */
-TickProcessor.prototype.printError = function(str) {
+printError(str) {
   printErr(str);
-};
+}
 
 
-TickProcessor.prototype.setCodeType = function(name, type) {
+setCodeType(name, type) {
   this.codeTypes_[name] = TickProcessor.CodeTypes[type];
-};
+}
 
 
-TickProcessor.prototype.isSharedLibrary = function(name) {
+isSharedLibrary(name) {
   return this.codeTypes_[name] == TickProcessor.CodeTypes.SHARED_LIB;
-};
+}
 
 
-TickProcessor.prototype.isCppCode = function(name) {
+isCppCode(name) {
   return this.codeTypes_[name] == TickProcessor.CodeTypes.CPP;
-};
+}
 
 
-TickProcessor.prototype.isJsCode = function(name) {
+isJsCode(name) {
   return name !== "UNKNOWN" && !(name in this.codeTypes_);
-};
+}
 
 
-TickProcessor.prototype.processLogFile = function(fileName) {
+processLogFile(fileName) {
   this.lastLogFileName_ = fileName;
   let line;
   while (line = readline()) {
     this.processLogLine(line);
   }
-};
+}
 
 
-TickProcessor.prototype.processLogFileInTest = function(fileName) {
+processLogFileInTest(fileName) {
    // Hack file name to avoid dealing with platform specifics.
   this.lastLogFileName_ = 'v8.log';
   const contents = readFile(fileName);
   this.processLogChunk(contents);
-};
+}
 
 
-TickProcessor.prototype.processSharedLibrary = function(
+processSharedLibrary(
     name, startAddr, endAddr, aslrSlide) {
   const entry = this.profile_.addLibrary(name, startAddr, endAddr, aslrSlide);
   this.setCodeType(entry.getName(), 'SHARED_LIB');
@@ -298,67 +282,67 @@ TickProcessor.prototype.processSharedLibrary = function(
     self.profile_.addStaticCode(fName, fStart, fEnd);
     self.setCodeType(fName, 'CPP');
   });
-};
+}
 
 
-TickProcessor.prototype.processCodeCreation = function(
+processCodeCreation(
     type, kind, timestamp, start, size, name, maybe_func) {
   if (maybe_func.length) {
     const funcAddr = parseInt(maybe_func[0]);
-    const state = parseState(maybe_func[1]);
+    const state = Profile.parseState(maybe_func[1]);
     this.profile_.addFuncCode(type, name, timestamp, start, size, funcAddr, state);
   } else {
     this.profile_.addCode(type, name, timestamp, start, size);
   }
-};
+}
 
 
-TickProcessor.prototype.processCodeDeopt = function(
+processCodeDeopt(
     timestamp, size, code, inliningId, scriptOffset, bailoutType,
     sourcePositionText, deoptReasonText) {
   this.profile_.deoptCode(timestamp, code, inliningId, scriptOffset,
       bailoutType, sourcePositionText, deoptReasonText);
-};
+}
 
 
-TickProcessor.prototype.processCodeMove = function(from, to) {
+processCodeMove(from, to) {
   this.profile_.moveCode(from, to);
-};
+}
 
-TickProcessor.prototype.processCodeDelete = function(start) {
+processCodeDelete(start) {
   this.profile_.deleteCode(start);
-};
+}
 
-TickProcessor.prototype.processCodeSourceInfo = function(
+processCodeSourceInfo(
     start, script, startPos, endPos, sourcePositions, inliningPositions,
     inlinedFunctions) {
   this.profile_.addSourcePositions(start, script, startPos,
     endPos, sourcePositions, inliningPositions, inlinedFunctions);
-};
+}
 
-TickProcessor.prototype.processScriptSource = function(script, url, source) {
+processScriptSource(script, url, source) {
   this.profile_.addScriptSource(script, url, source);
-};
+}
 
-TickProcessor.prototype.processFunctionMove = function(from, to) {
+processFunctionMove(from, to) {
   this.profile_.moveFunc(from, to);
-};
+}
 
 
-TickProcessor.prototype.includeTick = function(vmState) {
+includeTick(vmState) {
   if (this.stateFilter_ !== null) {
     return this.stateFilter_ == vmState;
   } else if (this.runtimeTimerFilter_ !== null) {
     return this.currentRuntimeTimer == this.runtimeTimerFilter_;
   }
   return true;
-};
+}
 
-TickProcessor.prototype.processRuntimeTimerEvent = function(name) {
+processRuntimeTimerEvent(name) {
   this.currentRuntimeTimer = name;
 }
 
-TickProcessor.prototype.processTick = function(pc,
+processTick(pc,
                                                ns_since_start,
                                                is_external_callback,
                                                tos_or_external_callback,
@@ -394,21 +378,21 @@ TickProcessor.prototype.processTick = function(pc,
   this.profile_.recordTick(
       ns_since_start, vmState,
       this.processStack(pc, tos_or_external_callback, stack));
-};
+}
 
 
-TickProcessor.prototype.advanceDistortion = function() {
+advanceDistortion() {
   this.distortion += this.distortion_per_entry;
 }
 
 
-TickProcessor.prototype.processHeapSampleBegin = function(space, state, ticks) {
+processHeapSampleBegin(space, state, ticks) {
   if (space != 'Heap') return;
   this.currentProducerProfile_ = new CallTree();
-};
+}
 
 
-TickProcessor.prototype.processHeapSampleEnd = function(space, state) {
+processHeapSampleEnd(space, state) {
   if (space != 'Heap' || !this.currentProducerProfile_) return;
 
   print(`Generation ${this.generation_}:`);
@@ -423,10 +407,10 @@ TickProcessor.prototype.processHeapSampleEnd = function(space, state) {
 
   this.currentProducerProfile_ = null;
   this.generation_++;
-};
+}
 
 
-TickProcessor.prototype.printStatistics = function() {
+printStatistics() {
   if (this.preprocessJson) {
     this.profile_.writeJson();
     return;
@@ -505,29 +489,16 @@ TickProcessor.prototype.printStatistics = function() {
             (rec2.internalFuncName < rec1.internalFuncName ? -1 : 1) );
     this.printHeavyProfile(heavyView.head.children);
   }
-};
-
-
-function padLeft(s, len) {
-  s = s.toString();
-  if (s.length < len) {
-    const padLength = len - s.length;
-    if (!(padLength in padLeft)) {
-      padLeft[padLength] = new Array(padLength + 1).join(' ');
-    }
-    s = padLeft[padLength] + s;
-  }
-  return s;
-};
+}
 
 
-TickProcessor.prototype.printHeader = function(headerTitle) {
+printHeader(headerTitle) {
   print(`\n [${headerTitle}]:`);
   print('   ticks  total  nonlib   name');
-};
+}
 
 
-TickProcessor.prototype.printLine = function(
+printLine(
     entry, ticks, totalTicks, nonLibTicks) {
   const pct = ticks * 100 / totalTicks;
   const nonLibPct = nonLibTicks != null
@@ -539,7 +510,7 @@ TickProcessor.prototype.printLine = function(
         entry);
 }
 
-TickProcessor.prototype.printHeavyProfHeader = function() {
+printHeavyProfHeader() {
   print('\n [Bottom up (heavy) profile]:');
   print('  Note: percentage shows a share of a particular caller in the ' +
         'total\n' +
@@ -548,10 +519,10 @@ TickProcessor.prototype.printHeavyProfHeader = function() {
         TickProcessor.CALL_PROFILE_CUTOFF_PCT.toFixed(1) +
         '% are not shown.\n');
   print('   ticks parent  name');
-};
+}
 
 
-TickProcessor.prototype.processProfile = function(
+processProfile(
     profile, filterP, func) {
   for (let i = 0, n = profile.length; i < n; ++i) {
     const rec = profile[i];
@@ -562,7 +533,7 @@ TickProcessor.prototype.processProfile = function(
   }
 };
 
-TickProcessor.prototype.getLineAndColumn = function(name) {
+getLineAndColumn(name) {
   const re = /:([0-9]+):([0-9]+)$/;
   const array = re.exec(name);
   if (!array) {
@@ -571,12 +542,12 @@ TickProcessor.prototype.getLineAndColumn = function(name) {
   return {line: array[1], column: array[2]};
 }
 
-TickProcessor.prototype.hasSourceMap = function() {
+hasSourceMap() {
   return this.sourceMap != null;
-};
+}
 
 
-TickProcessor.prototype.formatFunctionName = function(funcName) {
+formatFunctionName(funcName) {
   if (!this.hasSourceMap()) {
     return funcName;
   }
@@ -593,9 +564,9 @@ TickProcessor.prototype.formatFunctionName = function(funcName) {
   const sourceColumn = entry[4] + 1;
 
   return sourceFile + ':' + sourceLine + ':' + sourceColumn + ' -> ' + funcName;
-};
+}
 
-TickProcessor.prototype.printEntries = function(
+printEntries(
     profile, totalTicks, nonLibTicks, filterP, callback, printAllTicks) {
   const that = this;
   this.processProfile(profile, filterP, function (rec) {
@@ -606,10 +577,9 @@ TickProcessor.prototype.printEntries = function(
       that.printLine(funcName, rec.selfTime, totalTicks, nonLibTicks);
     }
   });
-};
-
+}
 
-TickProcessor.prototype.printHeavyProfile = function(profile, opt_indent) {
+  printHeavyProfile(profile, opt_indent) {
   const self = this;
   const indent = opt_indent || 0;
   const indentStr = padLeft('', indent);
@@ -629,14 +599,27 @@ TickProcessor.prototype.printHeavyProfile = function(profile, opt_indent) {
       print('');
     }
   });
-};
+}
+}
 
 
-function CppEntriesProvider() {
+
+function padLeft(s, len) {
+  s = s.toString();
+  if (s.length < len) {
+    const padLength = len - s.length;
+    if (!(padLength in padLeft)) {
+      padLeft[padLength] = new Array(padLength + 1).join(' ');
+    }
+    s = padLeft[padLength] + s;
+  }
+  return s;
 };
 
 
-CppEntriesProvider.prototype.parseVmSymbols = function(
+class CppEntriesProvider {
+
+parseVmSymbols(
     libName, libStart, libEnd, libASLRSlide, processorFunc) {
   this.loadSymbols(libName);
 
@@ -699,17 +682,20 @@ CppEntriesProvider.prototype.parseVmSymbols = function(
     addEntry(funcInfo);
   }
   addEntry({name: '', start: libEnd});
-};
+}
 
 
-CppEntriesProvider.prototype.loadSymbols = function(libName) {
-};
+loadSymbols(libName) {
+}
 
+parseNextLine() { return false }
 
-CppEntriesProvider.prototype.parseNextLine = () => false;
+}
 
 
-export function UnixCppEntriesProvider(nmExec, objdumpExec, targetRootFS, apkEmbeddedLibrary) {
+export class UnixCppEntriesProvider extends CppEntriesProvider {
+  constructor(nmExec, objdumpExec, targetRootFS, apkEmbeddedLibrary) {
+    super();
   this.symbols = [];
   // File offset of a symbol minus the virtual address of a symbol found in
   // the symbol table.
@@ -720,11 +706,10 @@ export function UnixCppEntriesProvider(nmExec, objdumpExec, targetRootFS, apkEmb
   this.targetRootFS = targetRootFS;
   this.apkEmbeddedLibrary = apkEmbeddedLibrary;
   this.FUNC_RE = /^([0-9a-fA-F]{8,16}) ([0-9a-fA-F]{8,16} )?[tTwW] (.*)$/;
-};
-inherits(UnixCppEntriesProvider, CppEntriesProvider);
+}
 
 
-UnixCppEntriesProvider.prototype.loadSymbols = function(libName) {
+loadSymbols(libName) {
   this.parsePos = 0;
   if (this.apkEmbeddedLibrary && libName.endsWith('.apk')) {
     libName = this.apkEmbeddedLibrary;
@@ -750,10 +735,10 @@ UnixCppEntriesProvider.prototype.loadSymbols = function(libName) {
     // If the library cannot be found on this system let's not panic.
     this.symbols = ['', ''];
   }
-};
+}
 
 
-UnixCppEntriesProvider.prototype.parseNextLine = function() {
+parseNextLine() {
   if (this.symbols.length == 0) {
     return false;
   }
@@ -775,18 +760,18 @@ UnixCppEntriesProvider.prototype.parseNextLine = function() {
     }
   }
   return funcInfo;
-};
-
+}
+}
 
-export function MacCppEntriesProvider(nmExec, objdumpExec, targetRootFS, apkEmbeddedLibrary) {
-  UnixCppEntriesProvider.call(this, nmExec, objdumpExec, targetRootFS, apkEmbeddedLibrary);
+export class MacCppEntriesProvider extends UnixCppEntriesProvider {
+  constructor(nmExec, objdumpExec, targetRootFS, apkEmbeddedLibrary) {
+  super(nmExec, objdumpExec, targetRootFS, apkEmbeddedLibrary);
   // Note an empty group. It is required, as UnixCppEntriesProvider expects 3 groups.
   this.FUNC_RE = /^([0-9a-fA-F]{8,16})() (.*)$/;
-};
-inherits(MacCppEntriesProvider, UnixCppEntriesProvider);
+}
 
 
-MacCppEntriesProvider.prototype.loadSymbols = function(libName) {
+loadSymbols(libName) {
   this.parsePos = 0;
   libName = this.targetRootFS + libName;
 
@@ -798,34 +783,36 @@ MacCppEntriesProvider.prototype.loadSymbols = function(libName) {
     // If the library cannot be found on this system let's not panic.
     this.symbols = '';
   }
-};
+}
+}
 
 
-export function WindowsCppEntriesProvider(_ignored_nmExec, _ignored_objdumpExec, targetRootFS,
+export class WindowsCppEntriesProvider extends CppEntriesProvider {
+  constructor(_ignored_nmExec, _ignored_objdumpExec, targetRootFS,
                                    _ignored_apkEmbeddedLibrary) {
+  super();
   this.targetRootFS = targetRootFS;
   this.symbols = '';
   this.parsePos = 0;
 };
-inherits(WindowsCppEntriesProvider, CppEntriesProvider);
 
 
-WindowsCppEntriesProvider.FILENAME_RE = /^(.*)\.([^.]+)$/;
+static FILENAME_RE = /^(.*)\.([^.]+)$/;
 
 
-WindowsCppEntriesProvider.FUNC_RE =
+static FUNC_RE =
     /^\s+0001:[0-9a-fA-F]{8}\s+([_\?@$0-9a-zA-Z]+)\s+([0-9a-fA-F]{8}).*$/;
 
 
-WindowsCppEntriesProvider.IMAGE_BASE_RE =
+static IMAGE_BASE_RE =
     /^\s+0000:00000000\s+___ImageBase\s+([0-9a-fA-F]{8}).*$/;
 
 
 // This is almost a constant on Windows.
-WindowsCppEntriesProvider.EXE_IMAGE_BASE = 0x00400000;
+static EXE_IMAGE_BASE = 0x00400000;
 
 
-WindowsCppEntriesProvider.prototype.loadSymbols = function(libName) {
+loadSymbols(libName) {
   libName = this.targetRootFS + libName;
   const fileNameFields = libName.match(WindowsCppEntriesProvider.FILENAME_RE);
   if (!fileNameFields) return;
@@ -840,7 +827,7 @@ WindowsCppEntriesProvider.prototype.loadSymbols = function(libName) {
 };
 
 
-WindowsCppEntriesProvider.prototype.parseNextLine = function() {
+parseNextLine() {
   const lineEndPos = this.symbols.indexOf('\r\n', this.parsePos);
   if (lineEndPos == -1) {
     return false;
@@ -875,14 +862,15 @@ WindowsCppEntriesProvider.prototype.parseNextLine = function() {
  *
  *   ?LookupInDescriptor@JSObject@internal@v8@@...arguments info...
  */
-WindowsCppEntriesProvider.prototype.unmangleName = function(name) {
+  unmangleName(name) {
   // Empty or non-mangled name.
   if (name.length < 1 || name.charAt(0) != '?') return name;
   const nameEndPos = name.indexOf('@@');
   const components = name.substring(1, nameEndPos).split('@');
   components.reverse();
   return components.join('::');
-};
+}
+}
 
 
 export class ArgumentsProcessor extends BaseArgumentsProcessor {
diff --git a/deps/v8/tools/v8heapconst.py b/deps/v8/tools/v8heapconst.py
index 0dd31d4ad259fc..cfd41e6bbd19d1 100644
--- a/deps/v8/tools/v8heapconst.py
+++ b/deps/v8/tools/v8heapconst.py
@@ -11,8 +11,6 @@
   2: "EXTERNAL_INTERNALIZED_STRING_TYPE",
   8: "ONE_BYTE_INTERNALIZED_STRING_TYPE",
   10: "EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE",
-  18: "UNCACHED_EXTERNAL_INTERNALIZED_STRING_TYPE",
-  26: "UNCACHED_EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE",
   32: "STRING_TYPE",
   33: "CONS_STRING_TYPE",
   34: "EXTERNAL_STRING_TYPE",
@@ -77,294 +75,301 @@
   113: "WASM_EXPORTED_FUNCTION_DATA_TYPE",
   114: "WASM_INDIRECT_FUNCTION_TABLE_TYPE",
   115: "WASM_JS_FUNCTION_DATA_TYPE",
-  116: "WASM_VALUE_TYPE",
-  117: "FIXED_ARRAY_TYPE",
-  118: "HASH_TABLE_TYPE",
-  119: "EPHEMERON_HASH_TABLE_TYPE",
-  120: "GLOBAL_DICTIONARY_TYPE",
-  121: "NAME_DICTIONARY_TYPE",
-  122: "NUMBER_DICTIONARY_TYPE",
-  123: "ORDERED_HASH_MAP_TYPE",
-  124: "ORDERED_HASH_SET_TYPE",
-  125: "ORDERED_NAME_DICTIONARY_TYPE",
-  126: "SIMPLE_NUMBER_DICTIONARY_TYPE",
-  127: "CLOSURE_FEEDBACK_CELL_ARRAY_TYPE",
-  128: "OBJECT_BOILERPLATE_DESCRIPTION_TYPE",
-  129: "SCOPE_INFO_TYPE",
-  130: "SCRIPT_CONTEXT_TABLE_TYPE",
-  131: "BYTE_ARRAY_TYPE",
-  132: "BYTECODE_ARRAY_TYPE",
-  133: "FIXED_DOUBLE_ARRAY_TYPE",
-  134: "INTERNAL_CLASS_WITH_SMI_ELEMENTS_TYPE",
-  135: "SLOPPY_ARGUMENTS_ELEMENTS_TYPE",
-  136: "AWAIT_CONTEXT_TYPE",
-  137: "BLOCK_CONTEXT_TYPE",
-  138: "CATCH_CONTEXT_TYPE",
-  139: "DEBUG_EVALUATE_CONTEXT_TYPE",
-  140: "EVAL_CONTEXT_TYPE",
-  141: "FUNCTION_CONTEXT_TYPE",
-  142: "MODULE_CONTEXT_TYPE",
-  143: "NATIVE_CONTEXT_TYPE",
-  144: "SCRIPT_CONTEXT_TYPE",
-  145: "WITH_CONTEXT_TYPE",
-  146: "EXPORTED_SUB_CLASS_BASE_TYPE",
-  147: "EXPORTED_SUB_CLASS_TYPE",
-  148: "EXPORTED_SUB_CLASS2_TYPE",
-  149: "SMALL_ORDERED_HASH_MAP_TYPE",
-  150: "SMALL_ORDERED_HASH_SET_TYPE",
-  151: "SMALL_ORDERED_NAME_DICTIONARY_TYPE",
-  152: "DESCRIPTOR_ARRAY_TYPE",
-  153: "STRONG_DESCRIPTOR_ARRAY_TYPE",
-  154: "SOURCE_TEXT_MODULE_TYPE",
-  155: "SYNTHETIC_MODULE_TYPE",
-  156: "UNCOMPILED_DATA_WITH_PREPARSE_DATA_TYPE",
-  157: "UNCOMPILED_DATA_WITHOUT_PREPARSE_DATA_TYPE",
-  158: "WEAK_FIXED_ARRAY_TYPE",
-  159: "TRANSITION_ARRAY_TYPE",
-  160: "CELL_TYPE",
-  161: "CODE_TYPE",
-  162: "CODE_DATA_CONTAINER_TYPE",
-  163: "COVERAGE_INFO_TYPE",
-  164: "EMBEDDER_DATA_ARRAY_TYPE",
-  165: "FEEDBACK_METADATA_TYPE",
-  166: "FEEDBACK_VECTOR_TYPE",
-  167: "FILLER_TYPE",
-  168: "FREE_SPACE_TYPE",
-  169: "INTERNAL_CLASS_TYPE",
-  170: "INTERNAL_CLASS_WITH_STRUCT_ELEMENTS_TYPE",
-  171: "MAP_TYPE",
-  172: "ON_HEAP_BASIC_BLOCK_PROFILER_DATA_TYPE",
-  173: "PREPARSE_DATA_TYPE",
-  174: "PROPERTY_ARRAY_TYPE",
-  175: "PROPERTY_CELL_TYPE",
-  176: "SHARED_FUNCTION_INFO_TYPE",
-  177: "SMI_BOX_TYPE",
-  178: "SMI_PAIR_TYPE",
-  179: "SORT_STATE_TYPE",
-  180: "WASM_ARRAY_TYPE",
-  181: "WASM_CAPI_FUNCTION_DATA_TYPE",
-  182: "WASM_STRUCT_TYPE",
-  183: "WEAK_ARRAY_LIST_TYPE",
-  184: "WEAK_CELL_TYPE",
-  185: "JS_PROXY_TYPE",
+  116: "FIXED_ARRAY_TYPE",
+  117: "HASH_TABLE_TYPE",
+  118: "EPHEMERON_HASH_TABLE_TYPE",
+  119: "GLOBAL_DICTIONARY_TYPE",
+  120: "NAME_DICTIONARY_TYPE",
+  121: "NUMBER_DICTIONARY_TYPE",
+  122: "ORDERED_HASH_MAP_TYPE",
+  123: "ORDERED_HASH_SET_TYPE",
+  124: "ORDERED_NAME_DICTIONARY_TYPE",
+  125: "SIMPLE_NUMBER_DICTIONARY_TYPE",
+  126: "CLOSURE_FEEDBACK_CELL_ARRAY_TYPE",
+  127: "OBJECT_BOILERPLATE_DESCRIPTION_TYPE",
+  128: "SCOPE_INFO_TYPE",
+  129: "SCRIPT_CONTEXT_TABLE_TYPE",
+  130: "BYTE_ARRAY_TYPE",
+  131: "BYTECODE_ARRAY_TYPE",
+  132: "FIXED_DOUBLE_ARRAY_TYPE",
+  133: "INTERNAL_CLASS_WITH_SMI_ELEMENTS_TYPE",
+  134: "SLOPPY_ARGUMENTS_ELEMENTS_TYPE",
+  135: "AWAIT_CONTEXT_TYPE",
+  136: "BLOCK_CONTEXT_TYPE",
+  137: "CATCH_CONTEXT_TYPE",
+  138: "DEBUG_EVALUATE_CONTEXT_TYPE",
+  139: "EVAL_CONTEXT_TYPE",
+  140: "FUNCTION_CONTEXT_TYPE",
+  141: "MODULE_CONTEXT_TYPE",
+  142: "NATIVE_CONTEXT_TYPE",
+  143: "SCRIPT_CONTEXT_TYPE",
+  144: "WITH_CONTEXT_TYPE",
+  145: "EXPORTED_SUB_CLASS_BASE_TYPE",
+  146: "EXPORTED_SUB_CLASS_TYPE",
+  147: "EXPORTED_SUB_CLASS2_TYPE",
+  148: "SMALL_ORDERED_HASH_MAP_TYPE",
+  149: "SMALL_ORDERED_HASH_SET_TYPE",
+  150: "SMALL_ORDERED_NAME_DICTIONARY_TYPE",
+  151: "DESCRIPTOR_ARRAY_TYPE",
+  152: "STRONG_DESCRIPTOR_ARRAY_TYPE",
+  153: "SOURCE_TEXT_MODULE_TYPE",
+  154: "SYNTHETIC_MODULE_TYPE",
+  155: "UNCOMPILED_DATA_WITH_PREPARSE_DATA_TYPE",
+  156: "UNCOMPILED_DATA_WITHOUT_PREPARSE_DATA_TYPE",
+  157: "WEAK_FIXED_ARRAY_TYPE",
+  158: "TRANSITION_ARRAY_TYPE",
+  159: "CELL_TYPE",
+  160: "CODE_TYPE",
+  161: "CODE_DATA_CONTAINER_TYPE",
+  162: "COVERAGE_INFO_TYPE",
+  163: "EMBEDDER_DATA_ARRAY_TYPE",
+  164: "FEEDBACK_METADATA_TYPE",
+  165: "FEEDBACK_VECTOR_TYPE",
+  166: "FILLER_TYPE",
+  167: "FREE_SPACE_TYPE",
+  168: "INTERNAL_CLASS_TYPE",
+  169: "INTERNAL_CLASS_WITH_STRUCT_ELEMENTS_TYPE",
+  170: "MAP_TYPE",
+  171: "ON_HEAP_BASIC_BLOCK_PROFILER_DATA_TYPE",
+  172: "PREPARSE_DATA_TYPE",
+  173: "PROPERTY_ARRAY_TYPE",
+  174: "PROPERTY_CELL_TYPE",
+  175: "SHARED_FUNCTION_INFO_TYPE",
+  176: "SMI_BOX_TYPE",
+  177: "SMI_PAIR_TYPE",
+  178: "SORT_STATE_TYPE",
+  179: "WASM_ARRAY_TYPE",
+  180: "WASM_CAPI_FUNCTION_DATA_TYPE",
+  181: "WASM_STRUCT_TYPE",
+  182: "WEAK_ARRAY_LIST_TYPE",
+  183: "WEAK_CELL_TYPE",
+  184: "JS_PROXY_TYPE",
   1057: "JS_OBJECT_TYPE",
-  186: "JS_GLOBAL_OBJECT_TYPE",
-  187: "JS_GLOBAL_PROXY_TYPE",
-  188: "JS_MODULE_NAMESPACE_TYPE",
+  185: "JS_GLOBAL_OBJECT_TYPE",
+  186: "JS_GLOBAL_PROXY_TYPE",
+  187: "JS_MODULE_NAMESPACE_TYPE",
   1040: "JS_SPECIAL_API_OBJECT_TYPE",
   1041: "JS_PRIMITIVE_WRAPPER_TYPE",
-  1042: "JS_MAP_KEY_ITERATOR_TYPE",
-  1043: "JS_MAP_KEY_VALUE_ITERATOR_TYPE",
-  1044: "JS_MAP_VALUE_ITERATOR_TYPE",
-  1045: "JS_SET_KEY_VALUE_ITERATOR_TYPE",
-  1046: "JS_SET_VALUE_ITERATOR_TYPE",
-  1047: "JS_GENERATOR_OBJECT_TYPE",
-  1048: "JS_ASYNC_FUNCTION_OBJECT_TYPE",
-  1049: "JS_ASYNC_GENERATOR_OBJECT_TYPE",
-  1050: "JS_DATA_VIEW_TYPE",
-  1051: "JS_TYPED_ARRAY_TYPE",
-  1052: "JS_MAP_TYPE",
-  1053: "JS_SET_TYPE",
-  1054: "JS_WEAK_MAP_TYPE",
-  1055: "JS_WEAK_SET_TYPE",
+  1042: "JS_ARRAY_ITERATOR_PROTOTYPE_TYPE",
+  1043: "JS_ITERATOR_PROTOTYPE_TYPE",
+  1044: "JS_MAP_ITERATOR_PROTOTYPE_TYPE",
+  1045: "JS_OBJECT_PROTOTYPE_TYPE",
+  1046: "JS_PROMISE_PROTOTYPE_TYPE",
+  1047: "JS_REG_EXP_PROTOTYPE_TYPE",
+  1048: "JS_SET_ITERATOR_PROTOTYPE_TYPE",
+  1049: "JS_SET_PROTOTYPE_TYPE",
+  1050: "JS_STRING_ITERATOR_PROTOTYPE_TYPE",
+  1051: "JS_TYPED_ARRAY_PROTOTYPE_TYPE",
+  1052: "JS_GENERATOR_OBJECT_TYPE",
+  1053: "JS_ASYNC_FUNCTION_OBJECT_TYPE",
+  1054: "JS_ASYNC_GENERATOR_OBJECT_TYPE",
+  1055: "JS_ARGUMENTS_OBJECT_TYPE",
   1056: "JS_API_OBJECT_TYPE",
-  1058: "JS_ARGUMENTS_OBJECT_TYPE",
-  1059: "JS_ARRAY_TYPE",
-  1060: "JS_ARRAY_BUFFER_TYPE",
-  1061: "JS_ARRAY_ITERATOR_TYPE",
-  1062: "JS_ASYNC_FROM_SYNC_ITERATOR_TYPE",
-  1063: "JS_COLLATOR_TYPE",
-  1064: "JS_CONTEXT_EXTENSION_OBJECT_TYPE",
-  1065: "JS_DATE_TYPE",
-  1066: "JS_DATE_TIME_FORMAT_TYPE",
-  1067: "JS_DISPLAY_NAMES_TYPE",
-  1068: "JS_ERROR_TYPE",
-  1069: "JS_FINALIZATION_REGISTRY_TYPE",
-  1070: "JS_LIST_FORMAT_TYPE",
-  1071: "JS_LOCALE_TYPE",
-  1072: "JS_MESSAGE_OBJECT_TYPE",
-  1073: "JS_NUMBER_FORMAT_TYPE",
-  1074: "JS_PLURAL_RULES_TYPE",
-  1075: "JS_PROMISE_TYPE",
-  1076: "JS_REG_EXP_TYPE",
-  1077: "JS_REG_EXP_STRING_ITERATOR_TYPE",
-  1078: "JS_RELATIVE_TIME_FORMAT_TYPE",
-  1079: "JS_SEGMENT_ITERATOR_TYPE",
-  1080: "JS_SEGMENTER_TYPE",
-  1081: "JS_SEGMENTS_TYPE",
-  1082: "JS_STRING_ITERATOR_TYPE",
-  1083: "JS_V8_BREAK_ITERATOR_TYPE",
-  1084: "JS_WEAK_REF_TYPE",
-  1085: "WASM_EXCEPTION_OBJECT_TYPE",
-  1086: "WASM_GLOBAL_OBJECT_TYPE",
-  1087: "WASM_INSTANCE_OBJECT_TYPE",
-  1088: "WASM_MEMORY_OBJECT_TYPE",
-  1089: "WASM_MODULE_OBJECT_TYPE",
-  1090: "WASM_TABLE_OBJECT_TYPE",
-  1091: "JS_BOUND_FUNCTION_TYPE",
-  1092: "JS_FUNCTION_TYPE",
+  1058: "JS_MAP_KEY_ITERATOR_TYPE",
+  1059: "JS_MAP_KEY_VALUE_ITERATOR_TYPE",
+  1060: "JS_MAP_VALUE_ITERATOR_TYPE",
+  1061: "JS_SET_KEY_VALUE_ITERATOR_TYPE",
+  1062: "JS_SET_VALUE_ITERATOR_TYPE",
+  1063: "JS_DATA_VIEW_TYPE",
+  1064: "JS_TYPED_ARRAY_TYPE",
+  1065: "JS_MAP_TYPE",
+  1066: "JS_SET_TYPE",
+  1067: "JS_BOUND_FUNCTION_TYPE",
+  1068: "JS_FUNCTION_TYPE",
+  1069: "JS_WEAK_MAP_TYPE",
+  1070: "JS_WEAK_SET_TYPE",
+  1071: "JS_ARRAY_TYPE",
+  1072: "JS_ARRAY_BUFFER_TYPE",
+  1073: "JS_ARRAY_ITERATOR_TYPE",
+  1074: "JS_ASYNC_FROM_SYNC_ITERATOR_TYPE",
+  1075: "JS_COLLATOR_TYPE",
+  1076: "JS_CONTEXT_EXTENSION_OBJECT_TYPE",
+  1077: "JS_DATE_TYPE",
+  1078: "JS_DATE_TIME_FORMAT_TYPE",
+  1079: "JS_DISPLAY_NAMES_TYPE",
+  1080: "JS_ERROR_TYPE",
+  1081: "JS_FINALIZATION_REGISTRY_TYPE",
+  1082: "JS_LIST_FORMAT_TYPE",
+  1083: "JS_LOCALE_TYPE",
+  1084: "JS_MESSAGE_OBJECT_TYPE",
+  1085: "JS_NUMBER_FORMAT_TYPE",
+  1086: "JS_PLURAL_RULES_TYPE",
+  1087: "JS_PROMISE_TYPE",
+  1088: "JS_REG_EXP_TYPE",
+  1089: "JS_REG_EXP_STRING_ITERATOR_TYPE",
+  1090: "JS_RELATIVE_TIME_FORMAT_TYPE",
+  1091: "JS_SEGMENT_ITERATOR_TYPE",
+  1092: "JS_SEGMENTER_TYPE",
+  1093: "JS_SEGMENTS_TYPE",
+  1094: "JS_STRING_ITERATOR_TYPE",
+  1095: "JS_V8_BREAK_ITERATOR_TYPE",
+  1096: "JS_WEAK_REF_TYPE",
+  1097: "WASM_EXCEPTION_OBJECT_TYPE",
+  1098: "WASM_GLOBAL_OBJECT_TYPE",
+  1099: "WASM_INSTANCE_OBJECT_TYPE",
+  1100: "WASM_MEMORY_OBJECT_TYPE",
+  1101: "WASM_MODULE_OBJECT_TYPE",
+  1102: "WASM_TABLE_OBJECT_TYPE",
 }
 
 # List of known V8 maps.
 KNOWN_MAPS = {
-  ("read_only_space", 0x02115): (171, "MetaMap"),
+  ("read_only_space", 0x02115): (170, "MetaMap"),
   ("read_only_space", 0x0213d): (67, "NullMap"),
-  ("read_only_space", 0x02165): (153, "StrongDescriptorArrayMap"),
-  ("read_only_space", 0x0218d): (158, "WeakFixedArrayMap"),
+  ("read_only_space", 0x02165): (152, "StrongDescriptorArrayMap"),
+  ("read_only_space", 0x0218d): (157, "WeakFixedArrayMap"),
   ("read_only_space", 0x021cd): (96, "EnumCacheMap"),
-  ("read_only_space", 0x02201): (117, "FixedArrayMap"),
+  ("read_only_space", 0x02201): (116, "FixedArrayMap"),
   ("read_only_space", 0x0224d): (8, "OneByteInternalizedStringMap"),
-  ("read_only_space", 0x02299): (168, "FreeSpaceMap"),
-  ("read_only_space", 0x022c1): (167, "OnePointerFillerMap"),
-  ("read_only_space", 0x022e9): (167, "TwoPointerFillerMap"),
+  ("read_only_space", 0x02299): (167, "FreeSpaceMap"),
+  ("read_only_space", 0x022c1): (166, "OnePointerFillerMap"),
+  ("read_only_space", 0x022e9): (166, "TwoPointerFillerMap"),
   ("read_only_space", 0x02311): (67, "UninitializedMap"),
   ("read_only_space", 0x02389): (67, "UndefinedMap"),
   ("read_only_space", 0x023cd): (66, "HeapNumberMap"),
   ("read_only_space", 0x02401): (67, "TheHoleMap"),
   ("read_only_space", 0x02461): (67, "BooleanMap"),
-  ("read_only_space", 0x02505): (131, "ByteArrayMap"),
-  ("read_only_space", 0x0252d): (117, "FixedCOWArrayMap"),
-  ("read_only_space", 0x02555): (118, "HashTableMap"),
+  ("read_only_space", 0x02505): (130, "ByteArrayMap"),
+  ("read_only_space", 0x0252d): (116, "FixedCOWArrayMap"),
+  ("read_only_space", 0x02555): (117, "HashTableMap"),
   ("read_only_space", 0x0257d): (64, "SymbolMap"),
   ("read_only_space", 0x025a5): (40, "OneByteStringMap"),
-  ("read_only_space", 0x025cd): (129, "ScopeInfoMap"),
-  ("read_only_space", 0x025f5): (176, "SharedFunctionInfoMap"),
-  ("read_only_space", 0x0261d): (161, "CodeMap"),
-  ("read_only_space", 0x02645): (160, "CellMap"),
-  ("read_only_space", 0x0266d): (175, "GlobalPropertyCellMap"),
+  ("read_only_space", 0x025cd): (128, "ScopeInfoMap"),
+  ("read_only_space", 0x025f5): (175, "SharedFunctionInfoMap"),
+  ("read_only_space", 0x0261d): (160, "CodeMap"),
+  ("read_only_space", 0x02645): (159, "CellMap"),
+  ("read_only_space", 0x0266d): (174, "GlobalPropertyCellMap"),
   ("read_only_space", 0x02695): (70, "ForeignMap"),
-  ("read_only_space", 0x026bd): (159, "TransitionArrayMap"),
+  ("read_only_space", 0x026bd): (158, "TransitionArrayMap"),
   ("read_only_space", 0x026e5): (45, "ThinOneByteStringMap"),
-  ("read_only_space", 0x0270d): (166, "FeedbackVectorMap"),
-  ("read_only_space", 0x0273d): (67, "ArgumentsMarkerMap"),
-  ("read_only_space", 0x0279d): (67, "ExceptionMap"),
-  ("read_only_space", 0x027f9): (67, "TerminationExceptionMap"),
-  ("read_only_space", 0x02861): (67, "OptimizedOutMap"),
-  ("read_only_space", 0x028c1): (67, "StaleRegisterMap"),
-  ("read_only_space", 0x02921): (130, "ScriptContextTableMap"),
-  ("read_only_space", 0x02949): (127, "ClosureFeedbackCellArrayMap"),
-  ("read_only_space", 0x02971): (165, "FeedbackMetadataArrayMap"),
-  ("read_only_space", 0x02999): (117, "ArrayListMap"),
-  ("read_only_space", 0x029c1): (65, "BigIntMap"),
-  ("read_only_space", 0x029e9): (128, "ObjectBoilerplateDescriptionMap"),
-  ("read_only_space", 0x02a11): (132, "BytecodeArrayMap"),
-  ("read_only_space", 0x02a39): (162, "CodeDataContainerMap"),
-  ("read_only_space", 0x02a61): (163, "CoverageInfoMap"),
-  ("read_only_space", 0x02a89): (133, "FixedDoubleArrayMap"),
-  ("read_only_space", 0x02ab1): (120, "GlobalDictionaryMap"),
-  ("read_only_space", 0x02ad9): (97, "ManyClosuresCellMap"),
-  ("read_only_space", 0x02b01): (117, "ModuleInfoMap"),
-  ("read_only_space", 0x02b29): (121, "NameDictionaryMap"),
-  ("read_only_space", 0x02b51): (97, "NoClosuresCellMap"),
-  ("read_only_space", 0x02b79): (122, "NumberDictionaryMap"),
-  ("read_only_space", 0x02ba1): (97, "OneClosureCellMap"),
-  ("read_only_space", 0x02bc9): (123, "OrderedHashMapMap"),
-  ("read_only_space", 0x02bf1): (124, "OrderedHashSetMap"),
-  ("read_only_space", 0x02c19): (125, "OrderedNameDictionaryMap"),
-  ("read_only_space", 0x02c41): (173, "PreparseDataMap"),
-  ("read_only_space", 0x02c69): (174, "PropertyArrayMap"),
-  ("read_only_space", 0x02c91): (93, "SideEffectCallHandlerInfoMap"),
-  ("read_only_space", 0x02cb9): (93, "SideEffectFreeCallHandlerInfoMap"),
-  ("read_only_space", 0x02ce1): (93, "NextCallSideEffectFreeCallHandlerInfoMap"),
-  ("read_only_space", 0x02d09): (126, "SimpleNumberDictionaryMap"),
-  ("read_only_space", 0x02d31): (149, "SmallOrderedHashMapMap"),
-  ("read_only_space", 0x02d59): (150, "SmallOrderedHashSetMap"),
-  ("read_only_space", 0x02d81): (151, "SmallOrderedNameDictionaryMap"),
-  ("read_only_space", 0x02da9): (154, "SourceTextModuleMap"),
-  ("read_only_space", 0x02dd1): (155, "SyntheticModuleMap"),
-  ("read_only_space", 0x02df9): (157, "UncompiledDataWithoutPreparseDataMap"),
-  ("read_only_space", 0x02e21): (156, "UncompiledDataWithPreparseDataMap"),
-  ("read_only_space", 0x02e49): (71, "WasmTypeInfoMap"),
-  ("read_only_space", 0x02e71): (183, "WeakArrayListMap"),
-  ("read_only_space", 0x02e99): (119, "EphemeronHashTableMap"),
-  ("read_only_space", 0x02ec1): (164, "EmbedderDataArrayMap"),
-  ("read_only_space", 0x02ee9): (184, "WeakCellMap"),
-  ("read_only_space", 0x02f11): (32, "StringMap"),
-  ("read_only_space", 0x02f39): (41, "ConsOneByteStringMap"),
-  ("read_only_space", 0x02f61): (33, "ConsStringMap"),
-  ("read_only_space", 0x02f89): (37, "ThinStringMap"),
-  ("read_only_space", 0x02fb1): (35, "SlicedStringMap"),
-  ("read_only_space", 0x02fd9): (43, "SlicedOneByteStringMap"),
-  ("read_only_space", 0x03001): (34, "ExternalStringMap"),
-  ("read_only_space", 0x03029): (42, "ExternalOneByteStringMap"),
-  ("read_only_space", 0x03051): (50, "UncachedExternalStringMap"),
-  ("read_only_space", 0x03079): (0, "InternalizedStringMap"),
-  ("read_only_space", 0x030a1): (2, "ExternalInternalizedStringMap"),
-  ("read_only_space", 0x030c9): (10, "ExternalOneByteInternalizedStringMap"),
-  ("read_only_space", 0x030f1): (18, "UncachedExternalInternalizedStringMap"),
-  ("read_only_space", 0x03119): (26, "UncachedExternalOneByteInternalizedStringMap"),
-  ("read_only_space", 0x03141): (58, "UncachedExternalOneByteStringMap"),
-  ("read_only_space", 0x03169): (67, "SelfReferenceMarkerMap"),
-  ("read_only_space", 0x03191): (67, "BasicBlockCountersMarkerMap"),
-  ("read_only_space", 0x031d5): (87, "ArrayBoilerplateDescriptionMap"),
-  ("read_only_space", 0x032bd): (99, "InterceptorInfoMap"),
-  ("read_only_space", 0x053c9): (72, "PromiseFulfillReactionJobTaskMap"),
-  ("read_only_space", 0x053f1): (73, "PromiseRejectReactionJobTaskMap"),
-  ("read_only_space", 0x05419): (74, "CallableTaskMap"),
-  ("read_only_space", 0x05441): (75, "CallbackTaskMap"),
-  ("read_only_space", 0x05469): (76, "PromiseResolveThenableJobTaskMap"),
-  ("read_only_space", 0x05491): (79, "FunctionTemplateInfoMap"),
-  ("read_only_space", 0x054b9): (80, "ObjectTemplateInfoMap"),
-  ("read_only_space", 0x054e1): (81, "AccessCheckInfoMap"),
-  ("read_only_space", 0x05509): (82, "AccessorInfoMap"),
-  ("read_only_space", 0x05531): (83, "AccessorPairMap"),
-  ("read_only_space", 0x05559): (84, "AliasedArgumentsEntryMap"),
-  ("read_only_space", 0x05581): (85, "AllocationMementoMap"),
-  ("read_only_space", 0x055a9): (88, "AsmWasmDataMap"),
-  ("read_only_space", 0x055d1): (89, "AsyncGeneratorRequestMap"),
-  ("read_only_space", 0x055f9): (90, "BreakPointMap"),
-  ("read_only_space", 0x05621): (91, "BreakPointInfoMap"),
-  ("read_only_space", 0x05649): (92, "CachedTemplateObjectMap"),
-  ("read_only_space", 0x05671): (94, "ClassPositionsMap"),
-  ("read_only_space", 0x05699): (95, "DebugInfoMap"),
-  ("read_only_space", 0x056c1): (98, "FunctionTemplateRareDataMap"),
-  ("read_only_space", 0x056e9): (100, "InterpreterDataMap"),
-  ("read_only_space", 0x05711): (101, "ModuleRequestMap"),
-  ("read_only_space", 0x05739): (102, "PromiseCapabilityMap"),
-  ("read_only_space", 0x05761): (103, "PromiseReactionMap"),
-  ("read_only_space", 0x05789): (104, "PropertyDescriptorObjectMap"),
-  ("read_only_space", 0x057b1): (105, "PrototypeInfoMap"),
-  ("read_only_space", 0x057d9): (106, "ScriptMap"),
-  ("read_only_space", 0x05801): (107, "SourceTextModuleInfoEntryMap"),
-  ("read_only_space", 0x05829): (108, "StackFrameInfoMap"),
-  ("read_only_space", 0x05851): (109, "StackTraceFrameMap"),
-  ("read_only_space", 0x05879): (110, "TemplateObjectDescriptionMap"),
-  ("read_only_space", 0x058a1): (111, "Tuple2Map"),
-  ("read_only_space", 0x058c9): (112, "WasmExceptionTagMap"),
-  ("read_only_space", 0x058f1): (113, "WasmExportedFunctionDataMap"),
-  ("read_only_space", 0x05919): (114, "WasmIndirectFunctionTableMap"),
-  ("read_only_space", 0x05941): (115, "WasmJSFunctionDataMap"),
-  ("read_only_space", 0x05969): (116, "WasmValueMap"),
-  ("read_only_space", 0x05991): (135, "SloppyArgumentsElementsMap"),
-  ("read_only_space", 0x059b9): (152, "DescriptorArrayMap"),
-  ("read_only_space", 0x059e1): (172, "OnHeapBasicBlockProfilerDataMap"),
-  ("read_only_space", 0x05a09): (181, "WasmCapiFunctionDataMap"),
-  ("read_only_space", 0x05a31): (169, "InternalClassMap"),
-  ("read_only_space", 0x05a59): (178, "SmiPairMap"),
-  ("read_only_space", 0x05a81): (177, "SmiBoxMap"),
-  ("read_only_space", 0x05aa9): (146, "ExportedSubClassBaseMap"),
-  ("read_only_space", 0x05ad1): (147, "ExportedSubClassMap"),
-  ("read_only_space", 0x05af9): (68, "AbstractInternalClassSubclass1Map"),
-  ("read_only_space", 0x05b21): (69, "AbstractInternalClassSubclass2Map"),
-  ("read_only_space", 0x05b49): (134, "InternalClassWithSmiElementsMap"),
-  ("read_only_space", 0x05b71): (170, "InternalClassWithStructElementsMap"),
-  ("read_only_space", 0x05b99): (148, "ExportedSubClass2Map"),
-  ("read_only_space", 0x05bc1): (179, "SortStateMap"),
-  ("read_only_space", 0x05be9): (86, "AllocationSiteWithWeakNextMap"),
-  ("read_only_space", 0x05c11): (86, "AllocationSiteWithoutWeakNextMap"),
-  ("read_only_space", 0x05c39): (77, "LoadHandler1Map"),
-  ("read_only_space", 0x05c61): (77, "LoadHandler2Map"),
-  ("read_only_space", 0x05c89): (77, "LoadHandler3Map"),
-  ("read_only_space", 0x05cb1): (78, "StoreHandler0Map"),
-  ("read_only_space", 0x05cd9): (78, "StoreHandler1Map"),
-  ("read_only_space", 0x05d01): (78, "StoreHandler2Map"),
-  ("read_only_space", 0x05d29): (78, "StoreHandler3Map"),
+  ("read_only_space", 0x0270d): (165, "FeedbackVectorMap"),
+  ("read_only_space", 0x02749): (67, "ArgumentsMarkerMap"),
+  ("read_only_space", 0x027a9): (67, "ExceptionMap"),
+  ("read_only_space", 0x02805): (67, "TerminationExceptionMap"),
+  ("read_only_space", 0x0286d): (67, "OptimizedOutMap"),
+  ("read_only_space", 0x028cd): (67, "StaleRegisterMap"),
+  ("read_only_space", 0x0292d): (129, "ScriptContextTableMap"),
+  ("read_only_space", 0x02955): (126, "ClosureFeedbackCellArrayMap"),
+  ("read_only_space", 0x0297d): (164, "FeedbackMetadataArrayMap"),
+  ("read_only_space", 0x029a5): (116, "ArrayListMap"),
+  ("read_only_space", 0x029cd): (65, "BigIntMap"),
+  ("read_only_space", 0x029f5): (127, "ObjectBoilerplateDescriptionMap"),
+  ("read_only_space", 0x02a1d): (131, "BytecodeArrayMap"),
+  ("read_only_space", 0x02a45): (161, "CodeDataContainerMap"),
+  ("read_only_space", 0x02a6d): (162, "CoverageInfoMap"),
+  ("read_only_space", 0x02a95): (132, "FixedDoubleArrayMap"),
+  ("read_only_space", 0x02abd): (119, "GlobalDictionaryMap"),
+  ("read_only_space", 0x02ae5): (97, "ManyClosuresCellMap"),
+  ("read_only_space", 0x02b0d): (116, "ModuleInfoMap"),
+  ("read_only_space", 0x02b35): (120, "NameDictionaryMap"),
+  ("read_only_space", 0x02b5d): (97, "NoClosuresCellMap"),
+  ("read_only_space", 0x02b85): (121, "NumberDictionaryMap"),
+  ("read_only_space", 0x02bad): (97, "OneClosureCellMap"),
+  ("read_only_space", 0x02bd5): (122, "OrderedHashMapMap"),
+  ("read_only_space", 0x02bfd): (123, "OrderedHashSetMap"),
+  ("read_only_space", 0x02c25): (124, "OrderedNameDictionaryMap"),
+  ("read_only_space", 0x02c4d): (172, "PreparseDataMap"),
+  ("read_only_space", 0x02c75): (173, "PropertyArrayMap"),
+  ("read_only_space", 0x02c9d): (93, "SideEffectCallHandlerInfoMap"),
+  ("read_only_space", 0x02cc5): (93, "SideEffectFreeCallHandlerInfoMap"),
+  ("read_only_space", 0x02ced): (93, "NextCallSideEffectFreeCallHandlerInfoMap"),
+  ("read_only_space", 0x02d15): (125, "SimpleNumberDictionaryMap"),
+  ("read_only_space", 0x02d3d): (148, "SmallOrderedHashMapMap"),
+  ("read_only_space", 0x02d65): (149, "SmallOrderedHashSetMap"),
+  ("read_only_space", 0x02d8d): (150, "SmallOrderedNameDictionaryMap"),
+  ("read_only_space", 0x02db5): (153, "SourceTextModuleMap"),
+  ("read_only_space", 0x02ddd): (154, "SyntheticModuleMap"),
+  ("read_only_space", 0x02e05): (71, "WasmTypeInfoMap"),
+  ("read_only_space", 0x02e2d): (182, "WeakArrayListMap"),
+  ("read_only_space", 0x02e55): (118, "EphemeronHashTableMap"),
+  ("read_only_space", 0x02e7d): (163, "EmbedderDataArrayMap"),
+  ("read_only_space", 0x02ea5): (183, "WeakCellMap"),
+  ("read_only_space", 0x02ecd): (32, "StringMap"),
+  ("read_only_space", 0x02ef5): (41, "ConsOneByteStringMap"),
+  ("read_only_space", 0x02f1d): (33, "ConsStringMap"),
+  ("read_only_space", 0x02f45): (37, "ThinStringMap"),
+  ("read_only_space", 0x02f6d): (35, "SlicedStringMap"),
+  ("read_only_space", 0x02f95): (43, "SlicedOneByteStringMap"),
+  ("read_only_space", 0x02fbd): (34, "ExternalStringMap"),
+  ("read_only_space", 0x02fe5): (42, "ExternalOneByteStringMap"),
+  ("read_only_space", 0x0300d): (50, "UncachedExternalStringMap"),
+  ("read_only_space", 0x03035): (0, "InternalizedStringMap"),
+  ("read_only_space", 0x0305d): (2, "ExternalInternalizedStringMap"),
+  ("read_only_space", 0x03085): (10, "ExternalOneByteInternalizedStringMap"),
+  ("read_only_space", 0x030ad): (58, "UncachedExternalOneByteStringMap"),
+  ("read_only_space", 0x030d5): (67, "SelfReferenceMarkerMap"),
+  ("read_only_space", 0x030fd): (67, "BasicBlockCountersMarkerMap"),
+  ("read_only_space", 0x03141): (87, "ArrayBoilerplateDescriptionMap"),
+  ("read_only_space", 0x03229): (99, "InterceptorInfoMap"),
+  ("read_only_space", 0x05355): (72, "PromiseFulfillReactionJobTaskMap"),
+  ("read_only_space", 0x0537d): (73, "PromiseRejectReactionJobTaskMap"),
+  ("read_only_space", 0x053a5): (74, "CallableTaskMap"),
+  ("read_only_space", 0x053cd): (75, "CallbackTaskMap"),
+  ("read_only_space", 0x053f5): (76, "PromiseResolveThenableJobTaskMap"),
+  ("read_only_space", 0x0541d): (79, "FunctionTemplateInfoMap"),
+  ("read_only_space", 0x05445): (80, "ObjectTemplateInfoMap"),
+  ("read_only_space", 0x0546d): (81, "AccessCheckInfoMap"),
+  ("read_only_space", 0x05495): (82, "AccessorInfoMap"),
+  ("read_only_space", 0x054bd): (83, "AccessorPairMap"),
+  ("read_only_space", 0x054e5): (84, "AliasedArgumentsEntryMap"),
+  ("read_only_space", 0x0550d): (85, "AllocationMementoMap"),
+  ("read_only_space", 0x05535): (88, "AsmWasmDataMap"),
+  ("read_only_space", 0x0555d): (89, "AsyncGeneratorRequestMap"),
+  ("read_only_space", 0x05585): (90, "BreakPointMap"),
+  ("read_only_space", 0x055ad): (91, "BreakPointInfoMap"),
+  ("read_only_space", 0x055d5): (92, "CachedTemplateObjectMap"),
+  ("read_only_space", 0x055fd): (94, "ClassPositionsMap"),
+  ("read_only_space", 0x05625): (95, "DebugInfoMap"),
+  ("read_only_space", 0x0564d): (98, "FunctionTemplateRareDataMap"),
+  ("read_only_space", 0x05675): (100, "InterpreterDataMap"),
+  ("read_only_space", 0x0569d): (101, "ModuleRequestMap"),
+  ("read_only_space", 0x056c5): (102, "PromiseCapabilityMap"),
+  ("read_only_space", 0x056ed): (103, "PromiseReactionMap"),
+  ("read_only_space", 0x05715): (104, "PropertyDescriptorObjectMap"),
+  ("read_only_space", 0x0573d): (105, "PrototypeInfoMap"),
+  ("read_only_space", 0x05765): (106, "ScriptMap"),
+  ("read_only_space", 0x0578d): (107, "SourceTextModuleInfoEntryMap"),
+  ("read_only_space", 0x057b5): (108, "StackFrameInfoMap"),
+  ("read_only_space", 0x057dd): (109, "StackTraceFrameMap"),
+  ("read_only_space", 0x05805): (110, "TemplateObjectDescriptionMap"),
+  ("read_only_space", 0x0582d): (111, "Tuple2Map"),
+  ("read_only_space", 0x05855): (112, "WasmExceptionTagMap"),
+  ("read_only_space", 0x0587d): (113, "WasmExportedFunctionDataMap"),
+  ("read_only_space", 0x058a5): (114, "WasmIndirectFunctionTableMap"),
+  ("read_only_space", 0x058cd): (115, "WasmJSFunctionDataMap"),
+  ("read_only_space", 0x058f5): (134, "SloppyArgumentsElementsMap"),
+  ("read_only_space", 0x0591d): (151, "DescriptorArrayMap"),
+  ("read_only_space", 0x05945): (156, "UncompiledDataWithoutPreparseDataMap"),
+  ("read_only_space", 0x0596d): (155, "UncompiledDataWithPreparseDataMap"),
+  ("read_only_space", 0x05995): (171, "OnHeapBasicBlockProfilerDataMap"),
+  ("read_only_space", 0x059bd): (180, "WasmCapiFunctionDataMap"),
+  ("read_only_space", 0x059e5): (168, "InternalClassMap"),
+  ("read_only_space", 0x05a0d): (177, "SmiPairMap"),
+  ("read_only_space", 0x05a35): (176, "SmiBoxMap"),
+  ("read_only_space", 0x05a5d): (145, "ExportedSubClassBaseMap"),
+  ("read_only_space", 0x05a85): (146, "ExportedSubClassMap"),
+  ("read_only_space", 0x05aad): (68, "AbstractInternalClassSubclass1Map"),
+  ("read_only_space", 0x05ad5): (69, "AbstractInternalClassSubclass2Map"),
+  ("read_only_space", 0x05afd): (133, "InternalClassWithSmiElementsMap"),
+  ("read_only_space", 0x05b25): (169, "InternalClassWithStructElementsMap"),
+  ("read_only_space", 0x05b4d): (147, "ExportedSubClass2Map"),
+  ("read_only_space", 0x05b75): (178, "SortStateMap"),
+  ("read_only_space", 0x05b9d): (86, "AllocationSiteWithWeakNextMap"),
+  ("read_only_space", 0x05bc5): (86, "AllocationSiteWithoutWeakNextMap"),
+  ("read_only_space", 0x05bed): (77, "LoadHandler1Map"),
+  ("read_only_space", 0x05c15): (77, "LoadHandler2Map"),
+  ("read_only_space", 0x05c3d): (77, "LoadHandler3Map"),
+  ("read_only_space", 0x05c65): (78, "StoreHandler0Map"),
+  ("read_only_space", 0x05c8d): (78, "StoreHandler1Map"),
+  ("read_only_space", 0x05cb5): (78, "StoreHandler2Map"),
+  ("read_only_space", 0x05cdd): (78, "StoreHandler3Map"),
   ("map_space", 0x02115): (1057, "ExternalMap"),
-  ("map_space", 0x0213d): (1072, "JSMessageObjectMap"),
-  ("map_space", 0x02165): (182, "WasmRttEqrefMap"),
-  ("map_space", 0x0218d): (182, "WasmRttExternrefMap"),
-  ("map_space", 0x021b5): (182, "WasmRttFuncrefMap"),
-  ("map_space", 0x021dd): (182, "WasmRttI31refMap"),
+  ("map_space", 0x0213d): (1084, "JSMessageObjectMap"),
+  ("map_space", 0x02165): (181, "WasmRttEqrefMap"),
+  ("map_space", 0x0218d): (181, "WasmRttAnyrefMap"),
+  ("map_space", 0x021b5): (181, "WasmRttExternrefMap"),
+  ("map_space", 0x021dd): (181, "WasmRttFuncrefMap"),
+  ("map_space", 0x02205): (181, "WasmRttI31refMap"),
 }
 
 # List of known V8 objects.
@@ -383,37 +388,37 @@
   ("read_only_space", 0x024c9): "FalseValue",
   ("read_only_space", 0x024f9): "empty_string",
   ("read_only_space", 0x02735): "EmptyScopeInfo",
-  ("read_only_space", 0x02765): "ArgumentsMarker",
-  ("read_only_space", 0x027c5): "Exception",
-  ("read_only_space", 0x02821): "TerminationException",
-  ("read_only_space", 0x02889): "OptimizedOut",
-  ("read_only_space", 0x028e9): "StaleRegister",
-  ("read_only_space", 0x031b9): "EmptyPropertyArray",
-  ("read_only_space", 0x031c1): "EmptyByteArray",
-  ("read_only_space", 0x031c9): "EmptyObjectBoilerplateDescription",
-  ("read_only_space", 0x031fd): "EmptyArrayBoilerplateDescription",
-  ("read_only_space", 0x03209): "EmptyClosureFeedbackCellArray",
-  ("read_only_space", 0x03211): "EmptySlowElementDictionary",
-  ("read_only_space", 0x03235): "EmptyOrderedHashMap",
-  ("read_only_space", 0x03249): "EmptyOrderedHashSet",
-  ("read_only_space", 0x0325d): "EmptyFeedbackMetadata",
-  ("read_only_space", 0x03269): "EmptyPropertyCell",
-  ("read_only_space", 0x0327d): "EmptyPropertyDictionary",
-  ("read_only_space", 0x032a5): "EmptyOrderedPropertyDictionary",
-  ("read_only_space", 0x032e5): "NoOpInterceptorInfo",
-  ("read_only_space", 0x0330d): "EmptyWeakArrayList",
-  ("read_only_space", 0x03319): "InfinityValue",
-  ("read_only_space", 0x03325): "MinusZeroValue",
-  ("read_only_space", 0x03331): "MinusInfinityValue",
-  ("read_only_space", 0x0333d): "SelfReferenceMarker",
-  ("read_only_space", 0x0337d): "BasicBlockCountersMarker",
-  ("read_only_space", 0x033c1): "OffHeapTrampolineRelocationInfo",
-  ("read_only_space", 0x033cd): "TrampolineTrivialCodeDataContainer",
-  ("read_only_space", 0x033d9): "TrampolinePromiseRejectionCodeDataContainer",
-  ("read_only_space", 0x033e5): "GlobalThisBindingScopeInfo",
-  ("read_only_space", 0x0341d): "EmptyFunctionScopeInfo",
-  ("read_only_space", 0x03445): "NativeScopeInfo",
-  ("read_only_space", 0x03461): "HashSeed",
+  ("read_only_space", 0x02771): "ArgumentsMarker",
+  ("read_only_space", 0x027d1): "Exception",
+  ("read_only_space", 0x0282d): "TerminationException",
+  ("read_only_space", 0x02895): "OptimizedOut",
+  ("read_only_space", 0x028f5): "StaleRegister",
+  ("read_only_space", 0x03125): "EmptyPropertyArray",
+  ("read_only_space", 0x0312d): "EmptyByteArray",
+  ("read_only_space", 0x03135): "EmptyObjectBoilerplateDescription",
+  ("read_only_space", 0x03169): "EmptyArrayBoilerplateDescription",
+  ("read_only_space", 0x03175): "EmptyClosureFeedbackCellArray",
+  ("read_only_space", 0x0317d): "EmptySlowElementDictionary",
+  ("read_only_space", 0x031a1): "EmptyOrderedHashMap",
+  ("read_only_space", 0x031b5): "EmptyOrderedHashSet",
+  ("read_only_space", 0x031c9): "EmptyFeedbackMetadata",
+  ("read_only_space", 0x031d5): "EmptyPropertyCell",
+  ("read_only_space", 0x031e9): "EmptyPropertyDictionary",
+  ("read_only_space", 0x03211): "EmptyOrderedPropertyDictionary",
+  ("read_only_space", 0x03251): "NoOpInterceptorInfo",
+  ("read_only_space", 0x03279): "EmptyWeakArrayList",
+  ("read_only_space", 0x03285): "InfinityValue",
+  ("read_only_space", 0x03291): "MinusZeroValue",
+  ("read_only_space", 0x0329d): "MinusInfinityValue",
+  ("read_only_space", 0x032a9): "SelfReferenceMarker",
+  ("read_only_space", 0x032e9): "BasicBlockCountersMarker",
+  ("read_only_space", 0x0332d): "OffHeapTrampolineRelocationInfo",
+  ("read_only_space", 0x03339): "TrampolineTrivialCodeDataContainer",
+  ("read_only_space", 0x03345): "TrampolinePromiseRejectionCodeDataContainer",
+  ("read_only_space", 0x03351): "GlobalThisBindingScopeInfo",
+  ("read_only_space", 0x03389): "EmptyFunctionScopeInfo",
+  ("read_only_space", 0x033b1): "NativeScopeInfo",
+  ("read_only_space", 0x033cd): "HashSeed",
   ("old_space", 0x02115): "ArgumentsIteratorAccessor",
   ("old_space", 0x02159): "ArrayLengthAccessor",
   ("old_space", 0x0219d): "BoundFunctionLengthAccessor",
@@ -427,49 +432,49 @@
   ("old_space", 0x023bd): "RegExpResultIndicesAccessor",
   ("old_space", 0x02401): "StringLengthAccessor",
   ("old_space", 0x02445): "InvalidPrototypeValidityCell",
-  ("old_space", 0x024cd): "EmptyScript",
-  ("old_space", 0x0250d): "ManyClosuresCell",
-  ("old_space", 0x02519): "ArrayConstructorProtector",
-  ("old_space", 0x0252d): "NoElementsProtector",
-  ("old_space", 0x02541): "IsConcatSpreadableProtector",
-  ("old_space", 0x02555): "ArraySpeciesProtector",
-  ("old_space", 0x02569): "TypedArraySpeciesProtector",
-  ("old_space", 0x0257d): "PromiseSpeciesProtector",
-  ("old_space", 0x02591): "RegExpSpeciesProtector",
-  ("old_space", 0x025a5): "StringLengthProtector",
-  ("old_space", 0x025b9): "ArrayIteratorProtector",
-  ("old_space", 0x025cd): "ArrayBufferDetachingProtector",
-  ("old_space", 0x025e1): "PromiseHookProtector",
-  ("old_space", 0x025f5): "PromiseResolveProtector",
-  ("old_space", 0x02609): "MapIteratorProtector",
-  ("old_space", 0x0261d): "PromiseThenProtector",
-  ("old_space", 0x02631): "SetIteratorProtector",
-  ("old_space", 0x02645): "StringIteratorProtector",
-  ("old_space", 0x02659): "SingleCharacterStringCache",
-  ("old_space", 0x02a61): "StringSplitCache",
-  ("old_space", 0x02e69): "RegExpMultipleCache",
-  ("old_space", 0x03271): "BuiltinsConstantsTable",
-  ("old_space", 0x03651): "AsyncFunctionAwaitRejectSharedFun",
-  ("old_space", 0x03679): "AsyncFunctionAwaitResolveSharedFun",
-  ("old_space", 0x036a1): "AsyncGeneratorAwaitRejectSharedFun",
-  ("old_space", 0x036c9): "AsyncGeneratorAwaitResolveSharedFun",
-  ("old_space", 0x036f1): "AsyncGeneratorYieldResolveSharedFun",
-  ("old_space", 0x03719): "AsyncGeneratorReturnResolveSharedFun",
-  ("old_space", 0x03741): "AsyncGeneratorReturnClosedRejectSharedFun",
-  ("old_space", 0x03769): "AsyncGeneratorReturnClosedResolveSharedFun",
-  ("old_space", 0x03791): "AsyncIteratorValueUnwrapSharedFun",
-  ("old_space", 0x037b9): "PromiseAllResolveElementSharedFun",
-  ("old_space", 0x037e1): "PromiseAllSettledResolveElementSharedFun",
-  ("old_space", 0x03809): "PromiseAllSettledRejectElementSharedFun",
-  ("old_space", 0x03831): "PromiseAnyRejectElementSharedFun",
-  ("old_space", 0x03859): "PromiseCapabilityDefaultRejectSharedFun",
-  ("old_space", 0x03881): "PromiseCapabilityDefaultResolveSharedFun",
-  ("old_space", 0x038a9): "PromiseCatchFinallySharedFun",
-  ("old_space", 0x038d1): "PromiseGetCapabilitiesExecutorSharedFun",
-  ("old_space", 0x038f9): "PromiseThenFinallySharedFun",
-  ("old_space", 0x03921): "PromiseThrowerFinallySharedFun",
-  ("old_space", 0x03949): "PromiseValueThunkFinallySharedFun",
-  ("old_space", 0x03971): "ProxyRevokeSharedFun",
+  ("old_space", 0x02531): "EmptyScript",
+  ("old_space", 0x02571): "ManyClosuresCell",
+  ("old_space", 0x0257d): "ArrayConstructorProtector",
+  ("old_space", 0x02591): "NoElementsProtector",
+  ("old_space", 0x025a5): "IsConcatSpreadableProtector",
+  ("old_space", 0x025b9): "ArraySpeciesProtector",
+  ("old_space", 0x025cd): "TypedArraySpeciesProtector",
+  ("old_space", 0x025e1): "PromiseSpeciesProtector",
+  ("old_space", 0x025f5): "RegExpSpeciesProtector",
+  ("old_space", 0x02609): "StringLengthProtector",
+  ("old_space", 0x0261d): "ArrayIteratorProtector",
+  ("old_space", 0x02631): "ArrayBufferDetachingProtector",
+  ("old_space", 0x02645): "PromiseHookProtector",
+  ("old_space", 0x02659): "PromiseResolveProtector",
+  ("old_space", 0x0266d): "MapIteratorProtector",
+  ("old_space", 0x02681): "PromiseThenProtector",
+  ("old_space", 0x02695): "SetIteratorProtector",
+  ("old_space", 0x026a9): "StringIteratorProtector",
+  ("old_space", 0x026bd): "SingleCharacterStringCache",
+  ("old_space", 0x02ac5): "StringSplitCache",
+  ("old_space", 0x02ecd): "RegExpMultipleCache",
+  ("old_space", 0x032d5): "BuiltinsConstantsTable",
+  ("old_space", 0x036bd): "AsyncFunctionAwaitRejectSharedFun",
+  ("old_space", 0x036e1): "AsyncFunctionAwaitResolveSharedFun",
+  ("old_space", 0x03705): "AsyncGeneratorAwaitRejectSharedFun",
+  ("old_space", 0x03729): "AsyncGeneratorAwaitResolveSharedFun",
+  ("old_space", 0x0374d): "AsyncGeneratorYieldResolveSharedFun",
+  ("old_space", 0x03771): "AsyncGeneratorReturnResolveSharedFun",
+  ("old_space", 0x03795): "AsyncGeneratorReturnClosedRejectSharedFun",
+  ("old_space", 0x037b9): "AsyncGeneratorReturnClosedResolveSharedFun",
+  ("old_space", 0x037dd): "AsyncIteratorValueUnwrapSharedFun",
+  ("old_space", 0x03801): "PromiseAllResolveElementSharedFun",
+  ("old_space", 0x03825): "PromiseAllSettledResolveElementSharedFun",
+  ("old_space", 0x03849): "PromiseAllSettledRejectElementSharedFun",
+  ("old_space", 0x0386d): "PromiseAnyRejectElementSharedFun",
+  ("old_space", 0x03891): "PromiseCapabilityDefaultRejectSharedFun",
+  ("old_space", 0x038b5): "PromiseCapabilityDefaultResolveSharedFun",
+  ("old_space", 0x038d9): "PromiseCatchFinallySharedFun",
+  ("old_space", 0x038fd): "PromiseGetCapabilitiesExecutorSharedFun",
+  ("old_space", 0x03921): "PromiseThenFinallySharedFun",
+  ("old_space", 0x03945): "PromiseThrowerFinallySharedFun",
+  ("old_space", 0x03969): "PromiseValueThunkFinallySharedFun",
+  ("old_space", 0x0398d): "ProxyRevokeSharedFun",
 }
 
 # Lower 32 bits of first page addresses for various heap spaces.
diff --git a/deps/v8/tools/v8windbg/src/object-inspection.cc b/deps/v8/tools/v8windbg/src/object-inspection.cc
index b206dfa792f85d..b682f5b1b9e7e0 100644
--- a/deps/v8/tools/v8windbg/src/object-inspection.cc
+++ b/deps/v8/tools/v8windbg/src/object-inspection.cc
@@ -17,6 +17,7 @@ V8CachedObject::V8CachedObject(Location location,
       uncompressed_type_name_(std::move(uncompressed_type_name)),
       context_(std::move(context)),
       is_compressed_(is_compressed) {}
+
 HRESULT V8CachedObject::Create(IModelObject* p_v8_object_instance,
                                IV8CachedObject** result) {
   Location location;
@@ -25,15 +26,16 @@ HRESULT V8CachedObject::Create(IModelObject* p_v8_object_instance,
   WRL::ComPtr context;
   RETURN_IF_FAIL(p_v8_object_instance->GetContext(&context));
 
+  WRL::ComPtr sp_type;
+  _bstr_t type_name;
+  RETURN_IF_FAIL(p_v8_object_instance->GetTypeInfo(&sp_type));
+  RETURN_IF_FAIL(sp_type->GetName(type_name.GetAddress()));
+
   // If the object is of type v8::internal::TaggedValue, and this build uses
   // compressed pointers, then the value is compressed. Other types such as
   // v8::internal::Object represent uncompressed tagged values.
-  WRL::ComPtr sp_type;
-  _bstr_t type_name;
   bool is_compressed =
       COMPRESS_POINTERS_BOOL &&
-      SUCCEEDED(p_v8_object_instance->GetTypeInfo(&sp_type)) &&
-      SUCCEEDED(sp_type->GetName(type_name.GetAddress())) &&
       static_cast(type_name) == std::string(kTaggedValue);
 
   const char* uncompressed_type_name =
@@ -44,6 +46,7 @@ HRESULT V8CachedObject::Create(IModelObject* p_v8_object_instance,
                 .Detach();
   return S_OK;
 }
+
 V8CachedObject::V8CachedObject(V8HeapObject heap_object)
     : heap_object_(std::move(heap_object)), heap_object_initialized_(true) {}
 
diff --git a/deps/v8/tools/v8windbg/src/v8-debug-helper-interop.cc b/deps/v8/tools/v8windbg/src/v8-debug-helper-interop.cc
index 74d0a9df2646ce..443303423776fb 100644
--- a/deps/v8/tools/v8windbg/src/v8-debug-helper-interop.cc
+++ b/deps/v8/tools/v8windbg/src/v8-debug-helper-interop.cc
@@ -16,7 +16,7 @@ namespace d = v8::debug_helper;
 
 // We need a plain C function pointer for interop with v8_debug_helper. We can
 // use this to get one as long as we never need two at once.
-class MemReaderScope {
+class V8_NODISCARD MemReaderScope {
  public:
   explicit MemReaderScope(WRL::ComPtr sp_context)
       : sp_context_(sp_context) {
diff --git a/deps/v8/tools/v8windbg/test/v8windbg-test.cc b/deps/v8/tools/v8windbg/test/v8windbg-test.cc
index 59414f341da97b..6b40af0ff17813 100644
--- a/deps/v8/tools/v8windbg/test/v8windbg-test.cc
+++ b/deps/v8/tools/v8windbg/test/v8windbg-test.cc
@@ -20,7 +20,7 @@ namespace {
 
 // Loads a named extension library upon construction and unloads it upon
 // destruction.
-class LoadExtensionScope {
+class V8_NODISCARD LoadExtensionScope {
  public:
   LoadExtensionScope(WRL::ComPtr p_debug_control,
                      std::wstring extension_path)
@@ -49,7 +49,7 @@ class LoadExtensionScope {
 };
 
 // Initializes COM upon construction and uninitializes it upon destruction.
-class ComScope {
+class V8_NODISCARD ComScope {
  public:
   ComScope() { hr_ = CoInitializeEx(nullptr, COINIT_MULTITHREADED); }
   ~ComScope() {
diff --git a/deps/v8/tools/wasm/update-wasm-fuzzers.sh b/deps/v8/tools/wasm/update-wasm-fuzzers.sh
index ffd7e016330be5..d85b86700bd5f4 100755
--- a/deps/v8/tools/wasm/update-wasm-fuzzers.sh
+++ b/deps/v8/tools/wasm/update-wasm-fuzzers.sh
@@ -3,40 +3,29 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-set -e
+set -ex
 
-TOOLS_WASM_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+cd "$( dirname "${BASH_SOURCE[0]}" )"
+cd ../..
 
-cd ${TOOLS_WASM_DIR}/../..
+BUILD_DIR=out/mk_wasm_fuzzer_corpus
+CORPUS_DIR=test/fuzzer/wasm_corpus
 
-rm -rf test/fuzzer/wasm_corpus
+rm -rf $BUILD_DIR $CORPUS_DIR
+mkdir -p $CORPUS_DIR
 
-tools/dev/gm.py x64.release all
+# Build optdebug such that the --dump-wasm-module flag is available.
+gn gen $BUILD_DIR --args='is_debug=true v8_optimized_debug=true target_cpu="x64" use_goma=true'
+autoninja -C $BUILD_DIR
 
-mkdir -p test/fuzzer/wasm_corpus
+./tools/run-tests.py --outdir=$BUILD_DIR --extra-flags="--dump-wasm-module \
+  --dump-wasm-module-path=./$CORPUS_DIR/"
 
-# wasm
-./tools/run-tests.py -j8 --variants=default --timeout=10 --arch=x64 \
-  --mode=release --no-presubmit --extra-flags="--dump-wasm-module \
-  --dump-wasm-module-path=./test/fuzzer/wasm_corpus/" unittests
-./tools/run-tests.py -j8 --variants=default --timeout=10 --arch=x64 \
-  --mode=release --no-presubmit --extra-flags="--dump-wasm-module \
-  --dump-wasm-module-path=./test/fuzzer/wasm_corpus/" wasm-spec-tests/*
-./tools/run-tests.py -j8 --variants=default --timeout=10 --arch=x64 \
-  --mode=release --no-presubmit --extra-flags="--dump-wasm-module \
-  --dump-wasm-module-path=./test/fuzzer/wasm_corpus/" mjsunit/wasm/*
-./tools/run-tests.py -j8 --variants=default --timeout=10 --arch=x64 \
-  --mode=release --no-presubmit --extra-flags="--dump-wasm-module \
-  --dump-wasm-module-path=./test/fuzzer/wasm_corpus/" \
-  $(cd test/; ls cctest/wasm/test-*.cc | \
-  sed -es/wasm\\///g | sed -es/[.]cc/\\/\\*/g)
+rm -rf $BUILD_DIR
 
 # Delete items over 20k.
-for x in $(find ./test/fuzzer/wasm_corpus/ -type f -size +20k)
-do
-  rm $x
-done
+find $CORPUS_DIR -type f -size +20k | xargs rm
 
 # Upload changes.
-cd test/fuzzer
+cd $CORPUS_DIR/..
 upload_to_google_storage.py -a -b v8-wasm-fuzzer wasm_corpus
diff --git a/deps/v8/tools/whitespace.txt b/deps/v8/tools/whitespace.txt
index d6024b5b7d94ce..8fcce8dda7f238 100644
--- a/deps/v8/tools/whitespace.txt
+++ b/deps/v8/tools/whitespace.txt
@@ -8,7 +8,7 @@ The doubles heard this and started to unbox.
 The Smi looked at them when a crazy v8-autoroll account showed up...
 The autoroller bought a round of Himbeerbrause. Suddenly.....
 The bartender starts to shake the bottles........................
-I can't add trailing whitespaces, so I'm adding this line.......
+I can't add trailing whitespaces, so I'm adding this line...........
 I'm starting to think that just adding trailing whitespaces might not be bad.
 
 Because whitespaces are not that funny.....
diff --git a/deps/v8/tools/windows-tick-processor.bat b/deps/v8/tools/windows-tick-processor.bat
index 56637e051cb3b3..ae74df95359d6c 100755
--- a/deps/v8/tools/windows-tick-processor.bat
+++ b/deps/v8/tools/windows-tick-processor.bat
@@ -27,4 +27,4 @@ IF NOT %arg8:~0,2% == 8 (IF NOT %arg8:~0,2% == 8- SET log_file=%8)
 SET arg9=9%9
 IF NOT %arg9:~0,2% == 9 (IF NOT %arg9:~0,2% == 9- SET log_file=%9)
 
-type %log_file% | %D8_PATH%\d8 --module %tools_dir%tickprocessor-driver.js -- --windows %*
+type %log_file% | %D8_PATH%\d8 --module %tools_dir%tickprocessor-driver.mjs -- --windows %*
diff --git a/deps/v8/tools/wpr.wprp b/deps/v8/tools/wpr.wprp
new file mode 100644
index 00000000000000..a6282490a8354b
--- /dev/null
+++ b/deps/v8/tools/wpr.wprp
@@ -0,0 +1,68 @@
+
+
+  
+  
+    
+      
+      
+    
+    
+      
+      
+    
+    
+      
+        
+        
+        
+        
+        
+        
+        
+        
+      
+      
+        
+        
+        
+        
+      
+    
+    
+    
+      
+        
+          
+        
+        
+          
+            
+          
+        
+      
+    
+    
+  
+

From 013a9dadc8f21f7ae4dd09ae60c8bcf98c853197 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= 
Date: Wed, 24 Feb 2021 14:47:07 +0100
Subject: [PATCH 02/21] build: reset embedder string to "-node.0"

---
 common.gypi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common.gypi b/common.gypi
index 374ded1c426dae..a06d23cee0677b 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.23',
+    'v8_embedder_string': '-node.0',
 
     ##### V8 defaults for Node.js #####
 

From 532a0067b4d6793a70b9115601745b726906c0ef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= 
Date: Fri, 12 Feb 2021 08:11:29 +0100
Subject: [PATCH 03/21] src: update NODE_MODULE_VERSION to 92

Major V8 updates are usually API/ABI incompatible with previous
versions. This commit adapts NODE_MODULE_VERSION for V8 8.9.

Refs: https://github.com/nodejs/CTC/blob/master/meetings/2016-09-28.md
---
 doc/abi_version_registry.json | 1 +
 src/node_version.h            | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/abi_version_registry.json b/doc/abi_version_registry.json
index 31a2d6396cced8..3249685673b3fb 100644
--- a/doc/abi_version_registry.json
+++ b/doc/abi_version_registry.json
@@ -1,5 +1,6 @@
 {
   "NODE_MODULE_VERSION": [
+    { "modules": 92, "runtime": "node",     "variant": "v8_8.9",               "versions": "16.0.0-pre" },
     { "modules": 91, "runtime": "node",     "variant": "v8_8.8",               "versions": "16.0.0-pre" },
     { "modules": 90, "runtime": "node",     "variant": "v8_8.7",               "versions": "16.0.0-pre" },
     { "modules": 89, "runtime": "electron", "variant": "electron",             "versions": "13" },
diff --git a/src/node_version.h b/src/node_version.h
index 0285b813141f2f..eac103a05ad1bb 100644
--- a/src/node_version.h
+++ b/src/node_version.h
@@ -89,7 +89,7 @@
  * version matching should open a pull request to reserve a number in this
  * registry.
  */
-#define NODE_MODULE_VERSION 91
+#define NODE_MODULE_VERSION 92
 
 // The NAPI_VERSION provided by this version of the runtime. This is the version
 // which the Node binary being built supports.

From fe81dc6e7702917d5fb12e27bee8dc6b01afc94a Mon Sep 17 00:00:00 2001
From: Refael Ackermann 
Date: Wed, 27 Mar 2019 10:32:10 -0400
Subject: [PATCH 04/21] deps: V8: un-cherry-pick bd019bd
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Original commit message:

    [testrunner] delete ancient junit compatible format support

    Testrunner has ancient support for JUnit compatible XML output.

    This CL removes this old feature.

    R=mstarzinger@chromium.org,jgruber@chromium.org,jkummerow@chromium.org
    CC=​machenbach@chromium.org

    Bug: v8:8728
    Change-Id: I7e1beb011dbaec3aa1a27398a5c52abdd778eaf0
    Reviewed-on: https://chromium-review.googlesource.com/c/1430065
    Reviewed-by: Jakob Gruber 
    Reviewed-by: Michael Starzinger 
    Commit-Queue: Tamer Tas 
    Cr-Commit-Position: refs/heads/master@{#59045}

Refs: https://github.com/v8/v8/commit/bd019bdb725cebaa34327634d73936cd7003d17c

PR-URL: https://github.com/nodejs/node/pull/32116
Reviewed-By: Michaël Zasso 
Reviewed-By: Jiawen Geng 
Reviewed-By: Ruben Bridgewater 
---
 common.gypi                                   |  2 +-
 deps/v8/tools/testrunner/base_runner.py       |  6 +++
 .../v8/tools/testrunner/local/junit_output.py | 49 +++++++++++++++++++
 deps/v8/tools/testrunner/testproc/progress.py | 40 +++++++++++++++
 4 files changed, 96 insertions(+), 1 deletion(-)
 create mode 100644 deps/v8/tools/testrunner/local/junit_output.py

diff --git a/common.gypi b/common.gypi
index a06d23cee0677b..e4ed63b766285a 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.0',
+    'v8_embedder_string': '-node.1',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/tools/testrunner/base_runner.py b/deps/v8/tools/testrunner/base_runner.py
index 54a9e61b160a92..d3674a4f8b9ff8 100644
--- a/deps/v8/tools/testrunner/base_runner.py
+++ b/deps/v8/tools/testrunner/base_runner.py
@@ -351,6 +351,9 @@ def _add_parser_default_options(self, parser):
                       help="Path to a file for storing json results.")
     parser.add_option('--slow-tests-cutoff', type="int", default=100,
                       help='Collect N slowest tests')
+    parser.add_option("--junitout", help="File name of the JUnit output")
+    parser.add_option("--junittestsuite", default="v8tests",
+                      help="The testsuite name in the JUnit output file")
     parser.add_option("--exit-after-n-failures", type="int", default=100,
                       help="Exit after the first N failures instead of "
                            "running all tests. Pass 0 to disable this feature.")
@@ -757,6 +760,9 @@ def _get_shard_info(self, options):
 
   def _create_progress_indicators(self, test_count, options):
     procs = [PROGRESS_INDICATORS[options.progress]()]
+    if options.junitout:
+      procs.append(progress.JUnitTestProgressIndicator(options.junitout,
+                                                       options.junittestsuite))
     if options.json_test_results:
       procs.append(progress.JsonTestProgressIndicator(self.framework_name))
 
diff --git a/deps/v8/tools/testrunner/local/junit_output.py b/deps/v8/tools/testrunner/local/junit_output.py
new file mode 100644
index 00000000000000..52f31ec422a69b
--- /dev/null
+++ b/deps/v8/tools/testrunner/local/junit_output.py
@@ -0,0 +1,49 @@
+# Copyright 2013 the V8 project authors. All rights reserved.
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+#       copyright notice, this list of conditions and the following
+#       disclaimer in the documentation and/or other materials provided
+#       with the distribution.
+#     * Neither the name of Google Inc. nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+import xml.etree.ElementTree as xml
+
+
+class JUnitTestOutput:
+  def __init__(self, test_suite_name):
+    self.root = xml.Element("testsuite")
+    self.root.attrib["name"] = test_suite_name
+
+  def HasRunTest(self, test_name, test_cmd, test_duration, test_failure):
+    testCaseElement = xml.Element("testcase")
+    testCaseElement.attrib["name"] = test_name
+    testCaseElement.attrib["cmd"] = test_cmd
+    testCaseElement.attrib["time"] = str(round(test_duration, 3))
+    if len(test_failure):
+      failureElement = xml.Element("failure")
+      failureElement.text = test_failure
+      testCaseElement.append(failureElement)
+    self.root.append(testCaseElement)
+
+  def FinishAndWrite(self, f):
+    xml.ElementTree(self.root).write(f, "UTF-8")
diff --git a/deps/v8/tools/testrunner/testproc/progress.py b/deps/v8/tools/testrunner/testproc/progress.py
index 9ff943a5c2b4bd..634ef7c2f2e3c0 100644
--- a/deps/v8/tools/testrunner/testproc/progress.py
+++ b/deps/v8/tools/testrunner/testproc/progress.py
@@ -15,6 +15,7 @@
 
 from . import base
 from . import util
+from ..local import junit_output
 
 
 def print_failure_header(test):
@@ -348,6 +349,45 @@ def _clear_line(self, last_length):
     print(("\r" + (" " * last_length) + "\r"), end='')
 
 
+class JUnitTestProgressIndicator(ProgressIndicator):
+  def __init__(self, junitout, junittestsuite):
+    super(JUnitTestProgressIndicator, self).__init__()
+    self._requirement = base.DROP_PASS_STDOUT
+
+    self.outputter = junit_output.JUnitTestOutput(junittestsuite)
+    if junitout:
+      self.outfile = open(junitout, "w")
+    else:
+      self.outfile = sys.stdout
+
+  def _on_result_for(self, test, result):
+    # TODO(majeski): Support for dummy/grouped results
+    fail_text = ""
+    output = result.output
+    if result.has_unexpected_output:
+      stdout = output.stdout.strip()
+      if len(stdout):
+        fail_text += "stdout:\n%s\n" % stdout
+      stderr = output.stderr.strip()
+      if len(stderr):
+        fail_text += "stderr:\n%s\n" % stderr
+      fail_text += "Command: %s" % result.cmd.to_string()
+      if output.HasCrashed():
+        fail_text += "exit code: %d\n--- CRASHED ---" % output.exit_code
+      if output.HasTimedOut():
+        fail_text += "--- TIMEOUT ---"
+    self.outputter.HasRunTest(
+        test_name=str(test),
+        test_cmd=result.cmd.to_string(relative=True),
+        test_duration=output.duration,
+        test_failure=fail_text)
+
+  def finished(self):
+    self.outputter.FinishAndWrite(self.outfile)
+    if self.outfile != sys.stdout:
+      self.outfile.close()
+
+
 class JsonTestProgressIndicator(ProgressIndicator):
   def __init__(self, framework_name):
     super(JsonTestProgressIndicator, self).__init__()

From 18f35b125a0f8b57cc9f0ffd775f1a9ab9b1c174 Mon Sep 17 00:00:00 2001
From: Ujjwal Sharma 
Date: Sat, 14 Sep 2019 09:20:31 +0530
Subject: [PATCH 05/21] deps: patch V8 to run on older XCode versions
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Patch V8 (compiler/js-heap-broker.cc) to remove the use of an optional
property, which is a fairly new C++ feature, since that requires a newer
XCode version than the minimum requirement in BUILDING.md and thus
breaks CI.

PR-URL: https://github.com/nodejs/node/pull/32116
Reviewed-By: Michaël Zasso 
Reviewed-By: Jiawen Geng 
Reviewed-By: Ruben Bridgewater 
---
 common.gypi                            | 2 +-
 deps/v8/src/compiler/js-heap-broker.cc | 1 +
 deps/v8/src/interpreter/interpreter.cc | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/common.gypi b/common.gypi
index e4ed63b766285a..ba50350ef801dd 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.1',
+    'v8_embedder_string': '-node.2',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/compiler/js-heap-broker.cc b/deps/v8/src/compiler/js-heap-broker.cc
index 0ed6958640952e..cd7e3df3e0d98a 100644
--- a/deps/v8/src/compiler/js-heap-broker.cc
+++ b/deps/v8/src/compiler/js-heap-broker.cc
@@ -4285,6 +4285,7 @@ GlobalAccessFeedback::GlobalAccessFeedback(PropertyCellRef cell,
 
 GlobalAccessFeedback::GlobalAccessFeedback(FeedbackSlotKind slot_kind)
     : ProcessedFeedback(kGlobalAccess, slot_kind),
+      cell_or_context_(base::nullopt),
       index_and_immutable_(0 /* doesn't matter */) {
   DCHECK(IsGlobalICKind(slot_kind));
 }
diff --git a/deps/v8/src/interpreter/interpreter.cc b/deps/v8/src/interpreter/interpreter.cc
index 40fdc603376555..3a6cdff8ade67f 100644
--- a/deps/v8/src/interpreter/interpreter.cc
+++ b/deps/v8/src/interpreter/interpreter.cc
@@ -296,7 +296,7 @@ Interpreter::NewSourcePositionCollectionJob(
   auto job = std::make_unique(parse_info, literal,
                                                          allocator, nullptr);
   job->compilation_info()->SetBytecodeArray(existing_bytecode);
-  return job;
+  return std::unique_ptr { static_cast(job.release()) };
 }
 
 void Interpreter::ForEachBytecode(

From 9fcad947f0b2ae2a07de320185f069d7fdd9092a Mon Sep 17 00:00:00 2001
From: Refael Ackermann 
Date: Wed, 22 May 2019 11:33:02 -0400
Subject: [PATCH 06/21] deps: V8: patch register-arm64.h
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fixes a compilation issue on some platforms

PR-URL: https://github.com/nodejs/node/pull/32116
Reviewed-By: Michaël Zasso 
Reviewed-By: Jiawen Geng 
Reviewed-By: Ruben Bridgewater 
---
 common.gypi                                | 2 +-
 deps/v8/src/codegen/arm64/register-arm64.h | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/common.gypi b/common.gypi
index ba50350ef801dd..1ec09dc067c7d7 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.2',
+    'v8_embedder_string': '-node.3',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/codegen/arm64/register-arm64.h b/deps/v8/src/codegen/arm64/register-arm64.h
index fbbb0a18dadf8f..31620ae9658f2f 100644
--- a/deps/v8/src/codegen/arm64/register-arm64.h
+++ b/deps/v8/src/codegen/arm64/register-arm64.h
@@ -524,6 +524,8 @@ using Simd128Register = VRegister;
 // Lists of registers.
 class V8_EXPORT_PRIVATE CPURegList {
  public:
+  CPURegList() = default;
+
   template 
   explicit CPURegList(CPURegister reg0, CPURegisters... regs)
       : list_(CPURegister::ListOf(reg0, regs...)),

From adcb62ecd3e1c7c2dfb046c8a6c33da2ec04c414 Mon Sep 17 00:00:00 2001
From: Refael Ackermann 
Date: Wed, 22 May 2019 11:47:16 -0400
Subject: [PATCH 07/21] deps: V8: forward declaration of `Rtl*FunctionTable`
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This should be semver-patch since actual invocation is version
conditional.

PR-URL: https://github.com/nodejs/node/pull/32116
Reviewed-By: Michaël Zasso 
Reviewed-By: Jiawen Geng 
Reviewed-By: Ruben Bridgewater 
---
 common.gypi                                   |  2 +-
 .../src/diagnostics/unwinding-info-win64.cc   | 31 +++++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/common.gypi b/common.gypi
index 1ec09dc067c7d7..8f56b68a25a15b 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.3',
+    'v8_embedder_string': '-node.4',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/diagnostics/unwinding-info-win64.cc b/deps/v8/src/diagnostics/unwinding-info-win64.cc
index 9a5f7069e75ace..54978eeb7495c3 100644
--- a/deps/v8/src/diagnostics/unwinding-info-win64.cc
+++ b/deps/v8/src/diagnostics/unwinding-info-win64.cc
@@ -17,6 +17,37 @@
 #error "Unsupported OS"
 #endif  // V8_OS_WIN_X64
 
+// Forward declaration to keep this independent of Win8
+NTSYSAPI
+DWORD
+NTAPI
+RtlAddGrowableFunctionTable(
+    _Out_ PVOID* DynamicTable,
+    _In_reads_(MaximumEntryCount) PRUNTIME_FUNCTION FunctionTable,
+    _In_ DWORD EntryCount,
+    _In_ DWORD MaximumEntryCount,
+    _In_ ULONG_PTR RangeBase,
+    _In_ ULONG_PTR RangeEnd
+    );
+
+
+NTSYSAPI
+void
+NTAPI
+RtlGrowFunctionTable(
+    _Inout_ PVOID DynamicTable,
+    _In_ DWORD NewEntryCount
+    );
+
+
+NTSYSAPI
+void
+NTAPI
+RtlDeleteGrowableFunctionTable(
+    _In_ PVOID DynamicTable
+    );
+
+
 namespace v8 {
 namespace internal {
 namespace win64_unwindinfo {

From 1ac0a93e5d8d2474d7788ad849153a0b10f56ea4 Mon Sep 17 00:00:00 2001
From: Joao Reis 
Date: Fri, 1 Nov 2019 08:39:18 +0100
Subject: [PATCH 08/21] deps: make v8.h compatible with VS2015
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

There is a bug in the most recent version of VS2015 that affects v8.h
and therefore prevents compilation of addons.

Refs: https://stackoverflow.com/q/38378693

PR-URL: https://github.com/nodejs/node/pull/32116
Reviewed-By: Michaël Zasso 
Reviewed-By: Jiawen Geng 
Reviewed-By: Ruben Bridgewater 
---
 common.gypi          | 2 +-
 deps/v8/include/v8.h | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/common.gypi b/common.gypi
index 8f56b68a25a15b..d9dde2ea7407c0 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.4',
+    'v8_embedder_string': '-node.5',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/include/v8.h b/deps/v8/include/v8.h
index e9235d17955089..efa6b5f413bc11 100644
--- a/deps/v8/include/v8.h
+++ b/deps/v8/include/v8.h
@@ -1423,7 +1423,9 @@ class ScriptOriginOptions {
  */
 class ScriptOrigin {
  public:
+#if defined(_MSC_VER) && _MSC_VER >= 1910 /* Disable on VS2015 */
   V8_DEPRECATE_SOON("Use constructor with primitvie C++ types")
+#endif
   V8_INLINE explicit ScriptOrigin(
       Local resource_name, Local resource_line_offset,
       Local resource_column_offset,
@@ -1918,9 +1920,11 @@ class V8_EXPORT ScriptCompiler {
    public:
     enum Encoding { ONE_BYTE, TWO_BYTE, UTF8 };
 
+#if defined(_MSC_VER) && _MSC_VER >= 1910 /* Disable on VS2015 */
     V8_DEPRECATED(
         "This class takes ownership of source_stream, so use the constructor "
         "taking a unique_ptr to make these semantics clearer")
+#endif
     StreamedSource(ExternalSourceStream* source_stream, Encoding encoding);
     StreamedSource(std::unique_ptr source_stream,
                    Encoding encoding);

From 172ceb80b2c664f368d89cb47bb2245a9df21278 Mon Sep 17 00:00:00 2001
From: Matheus Marchini 
Date: Tue, 10 Mar 2020 16:58:15 -0700
Subject: [PATCH 09/21] deps: patch V8 to run on Xcode 8
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Patch V8 (wasm/wasm-module.cc) to remove const qualifier from type
passed to template call of `OwnedVector::Of`. Xcode 8 can't convert
'OwnedVector' to 'OwnedVector' when
returning from a function (which is likely a bug on Xcode, considering
this worked on the prior version of Xcode as well as newer versions).
This workaround shouldn't affect the application, since the const
qualifier is preserved in the AsmJsOffsetInformation::encoded_offset_.

There's also a V8 test passing a const-qualified type to ::Of, but since
we don't test V8 on Xcode 8, it should be fine to leave it as is.

Signed-off-by: Matheus Marchini 

PR-URL: https://github.com/nodejs/node/pull/32116
Reviewed-By: Michaël Zasso 
Reviewed-By: Jiawen Geng 
Reviewed-By: Ruben Bridgewater 
---
 common.gypi                     | 2 +-
 deps/v8/src/wasm/wasm-module.cc | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/common.gypi b/common.gypi
index d9dde2ea7407c0..2bcceacbb5b227 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.5',
+    'v8_embedder_string': '-node.6',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/wasm/wasm-module.cc b/deps/v8/src/wasm/wasm-module.cc
index b418fbcc1cc5b2..ddd89616f8d6cc 100644
--- a/deps/v8/src/wasm/wasm-module.cc
+++ b/deps/v8/src/wasm/wasm-module.cc
@@ -139,7 +139,7 @@ void LazilyGeneratedNames::AddForTesting(int function_index,
 
 AsmJsOffsetInformation::AsmJsOffsetInformation(
     Vector encoded_offsets)
-    : encoded_offsets_(OwnedVector::Of(encoded_offsets)) {}
+    : encoded_offsets_(OwnedVector::Of(encoded_offsets)) {}
 
 AsmJsOffsetInformation::~AsmJsOffsetInformation() = default;
 

From 9fdf056386ed534ab48f9ba0f578138a7aa67cf2 Mon Sep 17 00:00:00 2001
From: Jiawen Geng 
Date: Wed, 14 Oct 2020 12:22:20 +0000
Subject: [PATCH 10/21] deps: fix V8 build issue with inline methods

PR-URL: https://github.com/nodejs/node/pull/35415
Reviewed-By: Rich Trott 
Reviewed-By: Jiawen Geng 
Reviewed-By: Daniel Bevenius 
Reviewed-By: Matteo Collina 
Reviewed-By: Myles Borins 
---
 common.gypi                           |  2 +-
 deps/v8/src/objects/fixed-array-inl.h |  2 ++
 deps/v8/src/objects/fixed-array.h     | 11 +++++++++++
 deps/v8/src/objects/tagged-field.h    |  2 +-
 4 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/common.gypi b/common.gypi
index 2bcceacbb5b227..79a22ac0faca37 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.6',
+    'v8_embedder_string': '-node.7',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/objects/fixed-array-inl.h b/deps/v8/src/objects/fixed-array-inl.h
index e4b4609119dffc..c227942112d732 100644
--- a/deps/v8/src/objects/fixed-array-inl.h
+++ b/deps/v8/src/objects/fixed-array-inl.h
@@ -88,6 +88,7 @@ bool FixedArray::is_the_hole(Isolate* isolate, int index) {
   return get(isolate, index).IsTheHole(isolate);
 }
 
+#if !defined(_WIN32) || defined(_WIN64)
 void FixedArray::set(int index, Smi value) {
   DCHECK_NE(map(), GetReadOnlyRoots().fixed_cow_array_map());
   DCHECK_LT(static_cast(index), static_cast(length()));
@@ -95,6 +96,7 @@ void FixedArray::set(int index, Smi value) {
   int offset = OffsetOfElementAt(index);
   RELAXED_WRITE_FIELD(*this, offset, value);
 }
+#endif
 
 void FixedArray::set(int index, Object value) {
   DCHECK_NE(GetReadOnlyRoots().fixed_cow_array_map(), map());
diff --git a/deps/v8/src/objects/fixed-array.h b/deps/v8/src/objects/fixed-array.h
index 564f82b736759c..a05c7d3abe9527 100644
--- a/deps/v8/src/objects/fixed-array.h
+++ b/deps/v8/src/objects/fixed-array.h
@@ -123,7 +123,18 @@ class FixedArray
   inline bool is_the_hole(Isolate* isolate, int index);
 
   // Setter that doesn't need write barrier.
+#if defined(_WIN32) && !defined(_WIN64)
+  inline void set(int index, Smi value) {
+    DCHECK_NE(map(), GetReadOnlyRoots().fixed_cow_array_map());
+    DCHECK_LT(static_cast(index), static_cast(length()));
+    DCHECK(Object(value).IsSmi());
+    int offset = OffsetOfElementAt(index);
+    RELAXED_WRITE_FIELD(*this, offset, value);
+  }
+#else
   inline void set(int index, Smi value);
+#endif
+
   // Setter with explicit barrier mode.
   inline void set(int index, Object value, WriteBarrierMode mode);
 
diff --git a/deps/v8/src/objects/tagged-field.h b/deps/v8/src/objects/tagged-field.h
index 8560c54cc45b66..1c96cc9d92b0bf 100644
--- a/deps/v8/src/objects/tagged-field.h
+++ b/deps/v8/src/objects/tagged-field.h
@@ -48,7 +48,7 @@ class TaggedField : public AllStatic {
                                int offset = 0);
 
   static inline void Relaxed_Store(HeapObject host, T value);
-  static inline void Relaxed_Store(HeapObject host, int offset, T value);
+  static void Relaxed_Store(HeapObject host, int offset, T value);
 
   static inline T Acquire_Load(HeapObject host, int offset = 0);
   static inline T Acquire_Load(IsolateRoot isolate, HeapObject host,

From 477dc9ecd86391ecc8610fd88ee9b2b794c62cda Mon Sep 17 00:00:00 2001
From: cjihrig 
Date: Mon, 7 Dec 2020 23:46:58 -0500
Subject: [PATCH 11/21] deps: workaround stod() limitations on SmartOS

std::stod() on SmartOS does not currently handle hex strings. This
commit provides a workaround based on strtol() until proper stod()
support is available.
---
 common.gypi                         |  2 +-
 deps/v8/src/torque/torque-parser.cc | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/common.gypi b/common.gypi
index 79a22ac0faca37..5e6383ab3cc44d 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.7',
+    'v8_embedder_string': '-node.8',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/torque/torque-parser.cc b/deps/v8/src/torque/torque-parser.cc
index b8845e60ab371d..150b1e93179073 100644
--- a/deps/v8/src/torque/torque-parser.cc
+++ b/deps/v8/src/torque/torque-parser.cc
@@ -1833,7 +1833,17 @@ base::Optional MakeNumberLiteralExpression(
   // Meanwhile, we type it as constexpr float64 when out of int32 range.
   double value = 0;
   try {
+#if defined(V8_OS_SOLARIS)
+    // stod() on Solaris does not currently support hex strings. Use strtol()
+    // specifically for hex literals until stod() support is available.
+    if (number.find("0x") || number.find("0X")) {
+      value = static_cast(strtol(number.c_str(), nullptr, 0));
+    } else {
+      value = std::stod(number);
+    }
+#else
     value = std::stod(number);
+#endif // !defined(V8_OS_SOLARIS)
   } catch (const std::out_of_range&) {
     Error("double literal out-of-range").Throw();
   }

From 0a1ce3d3b3e0a3ba745b59d70376279bd879c8d9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= 
Date: Sat, 30 Jan 2021 13:29:59 +0100
Subject: [PATCH 12/21] deps: silence irrelevant V8 warning

---
 common.gypi          | 2 +-
 deps/v8/include/v8.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/common.gypi b/common.gypi
index 5e6383ab3cc44d..ba6b791a6ccf82 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.8',
+    'v8_embedder_string': '-node.9',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/include/v8.h b/deps/v8/include/v8.h
index efa6b5f413bc11..b1cc054d767170 100644
--- a/deps/v8/include/v8.h
+++ b/deps/v8/include/v8.h
@@ -1631,7 +1631,7 @@ class V8_EXPORT Module : public Data {
    */
   int GetIdentityHash() const;
 
-  using ResolveCallback V8_DEPRECATE_SOON("Use ResolveModuleCallback") =
+  using ResolveCallback =
       MaybeLocal (*)(Local context, Local specifier,
                              Local referrer);
   using ResolveModuleCallback = MaybeLocal (*)(

From 149079c135afdffdc8e78cb398c758355129967f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= 
Date: Tue, 12 Jan 2021 15:20:25 +0100
Subject: [PATCH 13/21] deps: V8: cherry-pick 9a6a22874c81

Original commit message:

    [heap] Fix DCHECK in TransitionArrayNeedsCompaction

    The dead target check in TransitionArrayNeedsCompaction, confirming that
    Smi (uninitialized) targets imply that no other target is dead, has to
    additionally support Smi entries.

    Bug: v8:11305
    Change-Id: I6f3fa9e7420b1bd0a64a25dae670f439e3f41162
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2622914
    Commit-Queue: Leszek Swirski 
    Commit-Queue: Ulan Degenbaev 
    Auto-Submit: Leszek Swirski 
    Reviewed-by: Ulan Degenbaev 
    Cr-Commit-Position: refs/heads/master@{#72040}

Refs: https://github.com/v8/v8/commit/9a6a22874c814be0a3ad12065b386722df110df5

PR-URL: https://github.com/nodejs/node/pull/36139
Reviewed-By: Jiawen Geng 
Reviewed-By: Colin Ihrig 
Reviewed-By: Myles Borins 
Reviewed-By: Shelley Vohr 
---
 common.gypi                      | 2 +-
 deps/v8/src/heap/mark-compact.cc | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/common.gypi b/common.gypi
index ba6b791a6ccf82..c19346bffad434 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.9',
+    'v8_embedder_string': '-node.10',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/heap/mark-compact.cc b/deps/v8/src/heap/mark-compact.cc
index ccd3116e3988c6..28f40d432b0305 100644
--- a/deps/v8/src/heap/mark-compact.cc
+++ b/deps/v8/src/heap/mark-compact.cc
@@ -2290,7 +2290,9 @@ bool MarkCompactCollector::TransitionArrayNeedsCompaction(
 #ifdef DEBUG
       // Targets can only be dead iff this array is fully deserialized.
       for (int i = 0; i < num_transitions; ++i) {
-        DCHECK(!non_atomic_marking_state()->IsWhite(transitions.GetTarget(i)));
+        DCHECK_IMPLIES(
+            !transitions.GetRawTarget(i).IsSmi(),
+            !non_atomic_marking_state()->IsWhite(transitions.GetTarget(i)));
       }
 #endif
       return false;

From eaefe80c92e94dd4a32d774d969228244958aec9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= 
Date: Wed, 13 Jan 2021 13:11:42 +0100
Subject: [PATCH 14/21] deps: V8: cherry-pick deb0813166f3

Original commit message:

    [heap] Add proper rebind support to StrongRootBlockAllocator

    MSVC's STL in debug mode rebinds the allocator passed to vectors to
    allocate helper structures, so we need StrongRootBlockAllocator to have
    proper rebind support rather than assuming it always rebinds to Address.

    Bug: v8:11241
    Change-Id: I15688e43fe2c71ec4ff0c287a03e36ca57427417
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2622915
    Auto-Submit: Leszek Swirski 
    Reviewed-by: Ulan Degenbaev 
    Commit-Queue: Leszek Swirski 
    Cr-Commit-Position: refs/heads/master@{#72060}

Refs: https://github.com/v8/v8/commit/deb0813166f3fcb72c742f76e3c7228f23568bf1

PR-URL: https://github.com/nodejs/node/pull/36139
Reviewed-By: Jiawen Geng 
Reviewed-By: Colin Ihrig 
Reviewed-By: Myles Borins 
Reviewed-By: Shelley Vohr 
---
 common.gypi             |  2 +-
 deps/v8/src/heap/heap.h | 22 ++++++++++++++++++----
 2 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/common.gypi b/common.gypi
index c19346bffad434..be7c06d4c81882 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.10',
+    'v8_embedder_string': '-node.11',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/heap/heap.h b/deps/v8/src/heap/heap.h
index 24b92e8bc8c5ee..a636c5d8c4d770 100644
--- a/deps/v8/src/heap/heap.h
+++ b/deps/v8/src/heap/heap.h
@@ -2649,10 +2649,7 @@ class StrongRootBlockAllocator {
   using size_type = size_t;
   using difference_type = ptrdiff_t;
   template 
-  struct rebind {
-    STATIC_ASSERT((std::is_same::value));
-    using other = StrongRootBlockAllocator;
-  };
+  struct rebind;
 
   explicit StrongRootBlockAllocator(Heap* heap) : heap_(heap) {}
 
@@ -2663,6 +2660,23 @@ class StrongRootBlockAllocator {
   Heap* heap_;
 };
 
+// Rebinding to Address gives another StrongRootBlockAllocator.
+template <>
+struct StrongRootBlockAllocator::rebind
 {
+  using other = StrongRootBlockAllocator;
+};
+
+// Rebinding to something other than Address gives a std::allocator that
+// is copy-constructable from StrongRootBlockAllocator.
+template 
+struct StrongRootBlockAllocator::rebind {
+  class other : public std::allocator {
+   public:
+    // NOLINTNEXTLINE
+    other(const StrongRootBlockAllocator&) {}
+  };
+};
+
 }  // namespace internal
 }  // namespace v8
 

From 903e8b6bcd8e5fe4e40fdf59ccb1ba85e1d664d8 Mon Sep 17 00:00:00 2001
From: Benjamin Coe 
Date: Fri, 15 Jan 2021 17:26:28 -0800
Subject: [PATCH 15/21] deps: V8: cherry-pick fe191e8d05cc
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Original commit message:

    [coverage] optional chaining coverage

    Implement coverage tracking for optional chains.

    Bug: v8:10060
    Change-Id: I4f29eda64b6d859939f5f58f4fabead649905795
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2573013
    Reviewed-by: Leszek Swirski 
    Reviewed-by: Toon Verwaest 
    Reviewed-by: Gus Caplan 
    Reviewed-by: Sigurd Schneider 
    Commit-Queue: Benjamin Coe 
    Cr-Commit-Position: refs/heads/master@{#72075}

Refs: https://github.com/v8/v8/commit/fe191e8d05ccfa740432f56d34b1ff2d32265a8d

PR-URL: https://github.com/nodejs/node/pull/36956
Reviewed-By: Rich Trott 
Reviewed-By: Michaël Zasso 
---
 common.gypi                                   |  2 +-
 deps/v8/src/ast/ast-source-ranges.h           | 19 +++++++++
 deps/v8/src/interpreter/bytecode-generator.cc |  9 +++++
 deps/v8/src/parsing/parser-base.h             | 26 +++++++------
 deps/v8/src/parsing/parser.h                  |  8 ++++
 deps/v8/test/mjsunit/code-coverage-block.js   | 39 ++++++++++++++++++-
 6 files changed, 90 insertions(+), 13 deletions(-)

diff --git a/common.gypi b/common.gypi
index be7c06d4c81882..e5f01195e63850 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.11',
+    'v8_embedder_string': '-node.12',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/ast/ast-source-ranges.h b/deps/v8/src/ast/ast-source-ranges.h
index 1b42a055dd642d..1e96ec4c27c58b 100644
--- a/deps/v8/src/ast/ast-source-ranges.h
+++ b/deps/v8/src/ast/ast-source-ranges.h
@@ -47,6 +47,7 @@ struct SourceRange {
   V(Block)                       \
   V(CaseClause)                  \
   V(Conditional)                 \
+  V(Expression)                  \
   V(FunctionLiteral)             \
   V(IfStatement)                 \
   V(IterationStatement)          \
@@ -281,6 +282,24 @@ class NaryOperationSourceRanges final : public AstNodeSourceRanges {
   ZoneVector ranges_;
 };
 
+class ExpressionSourceRanges final : public AstNodeSourceRanges {
+ public:
+  explicit ExpressionSourceRanges(const SourceRange& right_range)
+      : right_range_(right_range) {}
+
+  SourceRange GetRange(SourceRangeKind kind) override {
+    DCHECK(HasRange(kind));
+    return right_range_;
+  }
+
+  bool HasRange(SourceRangeKind kind) override {
+    return kind == SourceRangeKind::kRight;
+  }
+
+ private:
+  SourceRange right_range_;
+};
+
 class SuspendSourceRanges final : public ContinuationSourceRanges {
  public:
   explicit SuspendSourceRanges(int32_t continuation_position)
diff --git a/deps/v8/src/interpreter/bytecode-generator.cc b/deps/v8/src/interpreter/bytecode-generator.cc
index f8d79e7764f11e..f26d431057c042 100644
--- a/deps/v8/src/interpreter/bytecode-generator.cc
+++ b/deps/v8/src/interpreter/bytecode-generator.cc
@@ -4599,8 +4599,11 @@ void BytecodeGenerator::VisitThrow(Throw* expr) {
 void BytecodeGenerator::VisitPropertyLoad(Register obj, Property* property) {
   if (property->is_optional_chain_link()) {
     DCHECK_NOT_NULL(optional_chaining_null_labels_);
+    int right_range =
+        AllocateBlockCoverageSlotIfEnabled(property, SourceRangeKind::kRight);
     builder()->LoadAccumulatorWithRegister(obj).JumpIfUndefinedOrNull(
         optional_chaining_null_labels_->New());
+    BuildIncrementBlockCoverageCounterIfEnabled(right_range);
   }
 
   AssignType property_kind = Property::GetAssignType(property);
@@ -4941,8 +4944,11 @@ void BytecodeGenerator::VisitCall(Call* expr) {
 
   if (expr->is_optional_chain_link()) {
     DCHECK_NOT_NULL(optional_chaining_null_labels_);
+    int right_range =
+        AllocateBlockCoverageSlotIfEnabled(expr, SourceRangeKind::kRight);
     builder()->LoadAccumulatorWithRegister(callee).JumpIfUndefinedOrNull(
         optional_chaining_null_labels_->New());
+    BuildIncrementBlockCoverageCounterIfEnabled(right_range);
   }
 
   // Evaluate all arguments to the function call and store in sequential args
@@ -5221,7 +5227,10 @@ void BytecodeGenerator::VisitDelete(UnaryOperation* unary) {
       OptionalChainNullLabelScope label_scope(this);
       VisitForAccumulatorValue(property->obj());
       if (property->is_optional_chain_link()) {
+        int right_range = AllocateBlockCoverageSlotIfEnabled(
+            property, SourceRangeKind::kRight);
         builder()->JumpIfUndefinedOrNull(label_scope.labels()->New());
+        BuildIncrementBlockCoverageCounterIfEnabled(right_range);
       }
       Register object = register_allocator()->NewRegister();
       builder()->StoreAccumulatorInRegister(object);
diff --git a/deps/v8/src/parsing/parser-base.h b/deps/v8/src/parsing/parser-base.h
index ff5f0af39012eb..fd0dcb79c1fac6 100644
--- a/deps/v8/src/parsing/parser-base.h
+++ b/deps/v8/src/parsing/parser-base.h
@@ -3297,6 +3297,7 @@ ParserBase::ParseLeftHandSideContinuation(ExpressionT result) {
 
   bool optional_chaining = false;
   bool is_optional = false;
+  int optional_link_begin;
   do {
     switch (peek()) {
       case Token::QUESTION_PERIOD: {
@@ -3304,10 +3305,16 @@ ParserBase::ParseLeftHandSideContinuation(ExpressionT result) {
           ReportUnexpectedToken(peek());
           return impl()->FailureExpression();
         }
+        // Include the ?. in the source range position.
+        optional_link_begin = scanner()->peek_location().beg_pos;
         Consume(Token::QUESTION_PERIOD);
         is_optional = true;
         optional_chaining = true;
-        continue;
+        if (Token::IsPropertyOrCall(peek())) continue;
+        int pos = position();
+        ExpressionT key = ParsePropertyOrPrivatePropertyName();
+        result = factory()->NewProperty(result, key, pos, is_optional);
+        break;
       }
 
       /* Property */
@@ -3387,14 +3394,7 @@ ParserBase::ParseLeftHandSideContinuation(ExpressionT result) {
       }
 
       default:
-        /* Optional Property */
-        if (is_optional) {
-          DCHECK_EQ(scanner()->current_token(), Token::QUESTION_PERIOD);
-          int pos = position();
-          ExpressionT key = ParsePropertyOrPrivatePropertyName();
-          result = factory()->NewProperty(result, key, pos, is_optional);
-          break;
-        }
+        // Template literals in/after an Optional Chain not supported:
         if (optional_chaining) {
           impl()->ReportMessageAt(scanner()->peek_location(),
                                   MessageTemplate::kOptionalChainingNoTemplate);
@@ -3405,8 +3405,12 @@ ParserBase::ParseLeftHandSideContinuation(ExpressionT result) {
         result = ParseTemplateLiteral(result, position(), true);
         break;
     }
-    is_optional = false;
-  } while (is_optional || Token::IsPropertyOrCall(peek()));
+    if (is_optional) {
+      SourceRange chain_link_range(optional_link_begin, end_position());
+      impl()->RecordExpressionSourceRange(result, chain_link_range);
+      is_optional = false;
+    }
+  } while (Token::IsPropertyOrCall(peek()));
   if (optional_chaining) return factory()->NewOptionalChain(result);
   return result;
 }
diff --git a/deps/v8/src/parsing/parser.h b/deps/v8/src/parsing/parser.h
index d5521acaa1eb2b..3bc5bb0fe53637 100644
--- a/deps/v8/src/parsing/parser.h
+++ b/deps/v8/src/parsing/parser.h
@@ -1002,6 +1002,14 @@ class V8_EXPORT_PRIVATE Parser : public NON_EXPORTED_BASE(ParserBase) {
         node, zone()->New(body_range));
   }
 
+  // Used to record source ranges of expressions associated with optional chain:
+  V8_INLINE void RecordExpressionSourceRange(Expression* node,
+                                             const SourceRange& right_range) {
+    if (source_range_map_ == nullptr) return;
+    source_range_map_->Insert(node,
+                              zone()->New(right_range));
+  }
+
   V8_INLINE void RecordSuspendSourceRange(Expression* node,
                                           int32_t continuation_position) {
     if (source_range_map_ == nullptr) return;
diff --git a/deps/v8/test/mjsunit/code-coverage-block.js b/deps/v8/test/mjsunit/code-coverage-block.js
index 4584f3134a90db..e9d38d71466a9b 100644
--- a/deps/v8/test/mjsunit/code-coverage-block.js
+++ b/deps/v8/test/mjsunit/code-coverage-block.js
@@ -1177,7 +1177,7 @@ a(true);                                  // 0500
  {"start":0,"end":401,"count":2},
  {"start":154,"end":254,"count":0}]);
 
- TestCoverage(
+TestCoverage(
 "https://crbug.com/v8/11231 - nullish coalescing",
 `
 const a = true                            // 0000
@@ -1195,4 +1195,41 @@ const i = c ?? b ?? 'hello'               // 0400
  {"start":262,"end":274,"count":0},
  {"start":417,"end":427,"count":0}]);
 
+TestCoverage(
+"Optional Chaining",
+`
+const a = undefined || null               // 0000
+const b = a?.b                            // 0050
+const c = a?.['b']                        // 0100
+const d = {                               // 0150
+  e: {f: 99, g: () => {return undefined}} // 0200
+}                                         // 0250
+const e = d?.e?.f                         // 0300
+const f = d?.e?.['f']                     // 0350
+const g = d?.e?.f?.g                      // 0400
+const h = d?.e?.f?.g?.h                   // 0450
+const i = d?.['d']?.['e']?.['h']          // 0500
+const k = a?.('b')                        // 0550
+const l = d?.e?.g?.()                     // 0600
+const m = d?.e?.g?.()?.a?.b               // 0650
+delete a?.b                               // 0700
+const n = d?.[d?.x?.f]                    // 0750
+if (a?.[d?.x?.f]) { const p = 99 } else {}// 0800
+const p = d?.[d?.x?.f]?.x                 // 0850
+`,
+[{"start":0,"end":899,"count":1},
+ {"start":61,"end":64,"count":0},
+ {"start":111,"end":118,"count":0},
+ {"start":470,"end":473,"count":0},
+ {"start":518,"end":532,"count":0},
+ {"start":561,"end":568,"count":0},
+ {"start":671,"end":677,"count":0},
+ {"start":708,"end":711,"count":0},
+ {"start":768,"end":771,"count":0},
+ {"start":805,"end":816,"count":0},
+ {"start":818,"end":834,"count":0},
+ {"start":868,"end":871,"count":0},
+ {"start":872,"end":875,"count":0},
+ {"start":216,"end":240,"count":2}]);
+
 %DebugToggleBlockCoverage(false);

From 41b8449d389fb6e06aa32015c7be8d0a97d06adf Mon Sep 17 00:00:00 2001
From: Matin Zadehdolatabad 
Date: Mon, 8 Feb 2021 17:22:37 +0330
Subject: [PATCH 16/21] deps: V8: cherry-pick 0c8b6e415c30
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Original commit message:

    [mac][wasm] Work around MacOS 11.2 code page decommit failures

    MacOS 11.2 refuses to set "no access" permissions on memory that
    we previously used for JIT-compiled code. It is still unclear
    whether this is WAI on the part of the kernel. In the meantime,
    as a workaround, we use madvise(..., MADV_FREE_REUSABLE) instead
    of mprotect(..., NONE) when discarding code pages. This is inspired
    by what Chromium's gin platform does.

    Fixed: v8:11389
    Change-Id: I866586932573b4253002436ae5eee4e0411c45fc
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2679688
    Commit-Queue: Jakob Kummerow 
    Commit-Queue: Michael Lippautz 
    Auto-Submit: Jakob Kummerow 
    Reviewed-by: Michael Lippautz 
    Cr-Commit-Position: refs/heads/master@{#72559}

Refs: https://github.com/v8/v8/commit/0c8b6e415c3020a987d2287f1543d629cd993535
Fixes: https://github.com/nodejs/node/issues/37061
PR-URL: https://github.com/nodejs/node/pull/37276
Reviewed-By: Michaël Zasso 
Reviewed-By: Ash Cripps 
---
 common.gypi                                 |  2 +-
 deps/v8/src/base/platform/platform-posix.cc | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/common.gypi b/common.gypi
index e5f01195e63850..67862ba1b187dc 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.12',
+    'v8_embedder_string': '-node.13',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/base/platform/platform-posix.cc b/deps/v8/src/base/platform/platform-posix.cc
index ab0d7839a453d8..67746173d582c5 100644
--- a/deps/v8/src/base/platform/platform-posix.cc
+++ b/deps/v8/src/base/platform/platform-posix.cc
@@ -415,6 +415,16 @@ bool OS::SetPermissions(void* address, size_t size, MemoryPermission access) {
 
   int prot = GetProtectionFromMemoryPermission(access);
   int ret = mprotect(address, size, prot);
+
+  // MacOS 11.2 on Apple Silicon refuses to switch permissions from
+  // rwx to none. Just use madvise instead.
+#if defined(V8_OS_MACOSX)
+  if (ret != 0 && access == OS::MemoryPermission::kNoAccess) {
+    ret = madvise(address, size, MADV_FREE_REUSABLE);
+    return ret == 0;
+  }
+#endif
+
   if (ret == 0 && access == OS::MemoryPermission::kNoAccess) {
     // This is advisory; ignore errors and continue execution.
     USE(DiscardSystemPages(address, size));

From 13929a5292c9f13a436bd7119e4e18afa31f30b8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= 
Date: Tue, 23 Feb 2021 07:45:40 +0100
Subject: [PATCH 17/21] deps: V8: backport a11395433dbd

Original commit message:

    [cppgc]: Fix build on msvc

    Fixes compilation with msvc 2019 toolchain.

    See: https://github.com/nodejs/node/pull/37330#issuecomment-783000812
    Change-Id: I3b658d9ef49889c0a0467a1146e8d16b50fca65d
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2711152
    Reviewed-by: Michael Lippautz 
    Commit-Queue: Michael Lippautz 
    Cr-Commit-Position: refs/heads/master@{#72917}

Refs: https://github.com/v8/v8/commit/a11395433dbd1880a1bb5b84078a36ab0804a623
---
 common.gypi                | 2 +-
 deps/v8/include/v8-cppgc.h | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/common.gypi b/common.gypi
index 67862ba1b187dc..2eb8664697d990 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.13',
+    'v8_embedder_string': '-node.14',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/include/v8-cppgc.h b/deps/v8/include/v8-cppgc.h
index 8a0d9cb9a0737e..5a3712dd632cd5 100644
--- a/deps/v8/include/v8-cppgc.h
+++ b/deps/v8/include/v8-cppgc.h
@@ -26,6 +26,9 @@ class CppHeap;
 }  // namespace internal
 
 struct V8_EXPORT CppHeapCreateParams {
+  CppHeapCreateParams(const CppHeapCreateParams&) = delete;
+  CppHeapCreateParams& operator=(const CppHeapCreateParams&) = delete;
+
   std::vector> custom_spaces;
 };
 

From 2a4941b03bb5675174b6452ed011a13253ad4eb0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= 
Date: Tue, 23 Feb 2021 08:04:29 +0100
Subject: [PATCH 18/21] deps: V8: cherry-pick 8957d4677aa7

Original commit message:

    [aarm64] Fix GetSharedLibraryAddresses

    This patch fixes a segmentation fault which occurs when using `--prof` flag on a Darwin ARM64 architecture.
    See https://github.com/nodejs/node/issues/36656

    Change-Id: Idc3ce6c8fd8a24f76f1b356f629e37340045b51e
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2609413
    Reviewed-by: Ulan Degenbaev 
    Reviewed-by: Michael Lippautz 
    Commit-Queue: Ulan Degenbaev 
    Cr-Commit-Position: refs/heads/master@{#72886}

Refs: https://github.com/v8/v8/commit/8957d4677aa794c230577f234071af0dadb88f7b
---
 common.gypi                                 | 2 +-
 deps/v8/AUTHORS                             | 1 +
 deps/v8/src/base/platform/platform-macos.cc | 8 ++++----
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/common.gypi b/common.gypi
index 2eb8664697d990..2a82642e350028 100644
--- a/common.gypi
+++ b/common.gypi
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.14',
+    'v8_embedder_string': '-node.15',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/AUTHORS b/deps/v8/AUTHORS
index 716a23b5bf4058..2721a0015f4b4e 100644
--- a/deps/v8/AUTHORS
+++ b/deps/v8/AUTHORS
@@ -60,6 +60,7 @@ Andreas Anyuru 
 Andrew Paprocki 
 Andrei Kashcha 
 Anna Henningsen 
+Antoine du Hamel 
 Anton Bikineev 
 Bangfu Tao 
 Daniel Shelton 
diff --git a/deps/v8/src/base/platform/platform-macos.cc b/deps/v8/src/base/platform/platform-macos.cc
index 3f1638ec0d50d6..1b1f4c4ce8a2c3 100644
--- a/deps/v8/src/base/platform/platform-macos.cc
+++ b/deps/v8/src/base/platform/platform-macos.cc
@@ -49,14 +49,14 @@ std::vector OS::GetSharedLibraryAddresses() {
   for (unsigned int i = 0; i < images_count; ++i) {
     const mach_header* header = _dyld_get_image_header(i);
     if (header == nullptr) continue;
-#if V8_HOST_ARCH_X64
+#if V8_HOST_ARCH_I32
+    unsigned int size;
+    char* code_ptr = getsectdatafromheader(header, SEG_TEXT, SECT_TEXT, &size);
+#else
     uint64_t size;
     char* code_ptr = getsectdatafromheader_64(
         reinterpret_cast(header), SEG_TEXT, SECT_TEXT,
         &size);
-#else
-    unsigned int size;
-    char* code_ptr = getsectdatafromheader(header, SEG_TEXT, SECT_TEXT, &size);
 #endif
     if (code_ptr == nullptr) continue;
     const intptr_t slide = _dyld_get_image_vmaddr_slide(i);

From ef0eae2f11c4c9a2ce1b0f7edf62d11c19420ca4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= 
Date: Sun, 18 Oct 2020 22:17:38 +0200
Subject: [PATCH 19/21] tools: update V8 gypfiles for 8.9

---
 tools/v8_gypfiles/inspector.gypi |  2 +
 tools/v8_gypfiles/toolchain.gypi |  6 ++-
 tools/v8_gypfiles/v8.gyp         | 66 +++++++++++++++++++-------------
 3 files changed, 47 insertions(+), 27 deletions(-)

diff --git a/tools/v8_gypfiles/inspector.gypi b/tools/v8_gypfiles/inspector.gypi
index 75a876ff763814..f8f9a1c1b7a392 100644
--- a/tools/v8_gypfiles/inspector.gypi
+++ b/tools/v8_gypfiles/inspector.gypi
@@ -73,6 +73,8 @@
       '<(V8_ROOT)/src/inspector/v8-debugger.h',
       '<(V8_ROOT)/src/inspector/v8-debugger-agent-impl.cc',
       '<(V8_ROOT)/src/inspector/v8-debugger-agent-impl.h',
+      '<(V8_ROOT)/src/inspector/v8-debugger-id.cc',
+      '<(V8_ROOT)/src/inspector/v8-debugger-id.h',
       '<(V8_ROOT)/src/inspector/v8-debugger-script.cc',
       '<(V8_ROOT)/src/inspector/v8-debugger-script.h',
       '<(V8_ROOT)/src/inspector/v8-heap-profiler-agent-impl.cc',
diff --git a/tools/v8_gypfiles/toolchain.gypi b/tools/v8_gypfiles/toolchain.gypi
index 4b75f865369239..165ba936e562d5 100644
--- a/tools/v8_gypfiles/toolchain.gypi
+++ b/tools/v8_gypfiles/toolchain.gypi
@@ -304,6 +304,9 @@
             'defines': [
               'V8_TARGET_ARCH_PPC64',
             ],
+            'cflags': [
+              '-ffp-contract=off',
+            ],
           }],
           ['v8_host_byteorder=="little"', {
             'defines': [
@@ -1341,12 +1344,13 @@
       4324,  # Padding structure due to alignment.
       # 4351, # [refack] Old issue with array init.
       4355,  # 'this' used in base member initializer list
+      4506,  # Benign "no definition for inline function"
       4661,  # no suitable definition provided for explicit template instantiation request
       4701,  # Potentially uninitialized local variable.
       4702,  # Unreachable code.
       4703,  # Potentially uninitialized local pointer variable.
       4709,  # Comma operator within array index expr (bugged).
-      # 4714,  # Function marked forceinline not inlined.
+      4714,  # Function marked forceinline not inlined.
       4715,  # Not all control paths return a value. (see https://crbug.com/v8/7658)
       4718,  # Recursive call has no side-effect.
       4723,  # https://crbug.com/v8/7771
diff --git a/tools/v8_gypfiles/v8.gyp b/tools/v8_gypfiles/v8.gyp
index 071540524bcfeb..9abbcc0289d9af 100644
--- a/tools/v8_gypfiles/v8.gyp
+++ b/tools/v8_gypfiles/v8.gyp
@@ -64,26 +64,24 @@
             '<@(torque_files)',
           ],
           'outputs': [
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/bit-fields.h',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/builtin-definitions.h',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/interface-descriptors.inc',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/factory.cc',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/factory.inc',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/field-offsets.h',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/class-verifiers.cc',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/class-verifiers.h',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/enum-verifiers.cc',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/objects-printer.cc',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/objects-body-descriptors-inl.inc',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/class-debug-readers.cc',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/class-debug-readers.h',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/exported-macros-assembler.cc',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/exported-macros-assembler.h',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/csa-types.h',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/instance-types.h',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/runtime-macros.cc',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/runtime-macros.h',
-            '<(SHARED_INTERMEDIATE_DIR)/torque-generated/class-forward-declarations.h',
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/bit-fields.h",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/builtin-definitions.h",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/interface-descriptors.inc",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/factory.cc",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/factory.inc",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/field-offsets.h",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/class-verifiers.cc",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/class-verifiers.h",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/enum-verifiers.cc",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/objects-printer.cc",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/objects-body-descriptors-inl.inc",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/class-debug-readers.cc",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/class-debug-readers.h",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/exported-macros-assembler.cc",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/exported-macros-assembler.h",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/csa-types.h",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/instance-types.h",
+            "<(SHARED_INTERMEDIATE_DIR)/torque-generated/class-forward-declarations.h",
             '<@(torque_outputs_csa_cc)',
             '<@(torque_outputs_csa_h)',
             '<@(torque_outputs_inl_inc)',
@@ -92,9 +90,9 @@
           ],
           'action': [
             '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)torque<(EXECUTABLE_SUFFIX)',
-            '<@(torque_files_without_v8_root)',
             '-o', '<(SHARED_INTERMEDIATE_DIR)/torque-generated',
-            '-v8-root', '<(V8_ROOT)'
+            '-v8-root', '<(V8_ROOT)',
+            '<@(torque_files_without_v8_root)',
           ],
         },
       ],
@@ -166,7 +164,6 @@
           '<(SHARED_INTERMEDIATE_DIR)/torque-generated/class-verifiers.h',
           '<(SHARED_INTERMEDIATE_DIR)/torque-generated/factory.cc',
           '<(SHARED_INTERMEDIATE_DIR)/torque-generated/objects-printer.cc',
-          '<(SHARED_INTERMEDIATE_DIR)/torque-generated/runtime-macros.cc',
         ],
         'include_dirs': [
           '<(SHARED_INTERMEDIATE_DIR)',
@@ -1092,6 +1089,8 @@
         '<(V8_ROOT)/src/libplatform/delayed-task-queue.h',
         '<(V8_ROOT)/src/libplatform/task-queue.cc',
         '<(V8_ROOT)/src/libplatform/task-queue.h',
+        '<(V8_ROOT)/src/libplatform/tracing/recorder-default.cc',
+        '<(V8_ROOT)/src/libplatform/tracing/recorder.h',
         '<(V8_ROOT)/src/libplatform/tracing/trace-buffer.cc',
         '<(V8_ROOT)/src/libplatform/tracing/trace-buffer.h',
         '<(V8_ROOT)/src/libplatform/tracing/trace-config.cc',
@@ -1112,10 +1111,17 @@
           },
           'defines': ['BUILDING_V8_PLATFORM_SHARED'],
         }],
-        ['v8_use_perfetto', {
+        ['v8_use_perfetto==1', {
+          'sources!': [
+            '<(V8_ROOT)/base/trace_event/common/trace_event_common.h',
+            '<(V8_ROOT)/src/libplatform/tracing/recorder-default.cc',
+            '<(V8_ROOT)/src/libplatform/tracing/trace-buffer.cc',
+            '<(V8_ROOT)/src/libplatform/tracing/trace-buffer.h',
+            '<(V8_ROOT)/src/libplatform/tracing/trace-object.cc',
+            '<(V8_ROOT)/src/libplatform/tracing/trace-writer.cc',
+            '<(V8_ROOT)/src/libplatform/tracing/trace-writer.h',
+          ],
           'sources': [
-            '<(V8_ROOT)/src/libplatform/tracing/json-trace-event-listener.cc',
-            '<(V8_ROOT)/src/libplatform/tracing/json-trace-event-listener.h',
             '<(V8_ROOT)/src/libplatform/tracing/trace-event-listener.cc',
             '<(V8_ROOT)/src/libplatform/tracing/trace-event-listener.h',
           ],
@@ -1124,6 +1130,14 @@
             '<(V8_ROOT)/third_party/perfetto/protos/perfetto/trace:lite',
           ],
         }],
+        ['v8_use_perfetto==0 and is_win', {
+          'sources!': [
+            '<(V8_ROOT)/src/libplatform/tracing/recorder-default.cc',
+          ],
+          'sources': [
+            '<(V8_ROOT)/src/libplatform/tracing/recorder-win.cc',
+          ],
+        }],
       ],
       'direct_dependent_settings': {
         'include_dirs': [

From 0513d68efafa329e6ee1d652652a762a55654069 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= 
Date: Mon, 23 Nov 2020 08:30:28 +0100
Subject: [PATCH 20/21] deps: bump minimum ICU version to 68

Refs: https://github.com/v8/v8/commit/1e69cdd95bad505ec5de1ddca9e58eee8cd9383f
---
 tools/icu/icu_versions.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/icu/icu_versions.json b/tools/icu/icu_versions.json
index 19a05a679a987b..3fe402a8ab8f5b 100644
--- a/tools/icu/icu_versions.json
+++ b/tools/icu/icu_versions.json
@@ -1,3 +1,3 @@
 {
-    "minimum_icu": 67
+    "minimum_icu": 68
 }

From b63ce024c55c5b0bca330a3cc76ef31de68ab1e0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= 
Date: Sat, 30 Jan 2021 13:30:19 +0100
Subject: [PATCH 21/21] src: use non-deprecated V8 module and script APIs

---
 src/inspector_agent.cc    |  2 +-
 src/module_wrap.cc        | 70 +++++++++++++++++++++++----------------
 src/module_wrap.h         |  3 +-
 src/node_contextify.cc    | 36 +++++++++-----------
 src/node_errors.cc        |  4 +--
 src/node_native_module.cc |  5 +--
 6 files changed, 63 insertions(+), 57 deletions(-)

diff --git a/src/inspector_agent.cc b/src/inspector_agent.cc
index 9c3721f0689b0e..2226c432839e18 100644
--- a/src/inspector_agent.cc
+++ b/src/inspector_agent.cc
@@ -497,7 +497,7 @@ class NodeInspectorClient : public V8InspectorClient {
     Isolate* isolate = env_->isolate();
     Local context = env_->context();
 
-    int script_id = message->GetScriptOrigin().ScriptID()->Value();
+    int script_id = message->GetScriptOrigin().ScriptId();
 
     Local stack_trace = message->GetStackTrace();
 
diff --git a/src/module_wrap.cc b/src/module_wrap.cc
index 4885e65f9c5d47..f4a7ad6b0c3eee 100644
--- a/src/module_wrap.cc
+++ b/src/module_wrap.cc
@@ -26,10 +26,12 @@ using v8::Array;
 using v8::ArrayBufferView;
 using v8::Context;
 using v8::EscapableHandleScope;
+using v8::FixedArray;
 using v8::Function;
 using v8::FunctionCallbackInfo;
 using v8::FunctionTemplate;
 using v8::HandleScope;
+using v8::Int32;
 using v8::Integer;
 using v8::IntegrityLevel;
 using v8::Isolate;
@@ -37,6 +39,7 @@ using v8::Local;
 using v8::MaybeLocal;
 using v8::MicrotaskQueue;
 using v8::Module;
+using v8::ModuleRequest;
 using v8::Number;
 using v8::Object;
 using v8::PrimitiveArray;
@@ -128,8 +131,8 @@ void ModuleWrap::New(const FunctionCallbackInfo& args) {
     context = contextify_context->context();
   }
 
-  Local line_offset;
-  Local column_offset;
+  int line_offset = 0;
+  int column_offset = 0;
 
   bool synthetic = args[2]->IsArray();
   if (synthetic) {
@@ -139,9 +142,9 @@ void ModuleWrap::New(const FunctionCallbackInfo& args) {
     // new ModuleWrap(url, context, source, lineOffset, columOffset, cachedData)
     CHECK(args[2]->IsString());
     CHECK(args[3]->IsNumber());
-    line_offset = args[3].As();
+    line_offset = args[3].As()->Value();
     CHECK(args[4]->IsNumber());
-    column_offset = args[4].As();
+    column_offset = args[4].As()->Value();
   }
 
   Local host_defined_options =
@@ -185,14 +188,14 @@ void ModuleWrap::New(const FunctionCallbackInfo& args) {
 
       Local source_text = args[2].As();
       ScriptOrigin origin(url,
-                          line_offset,                      // line offset
-                          column_offset,                    // column offset
-                          True(isolate),                    // is cross origin
-                          Local(),                 // script id
+                          line_offset,
+                          column_offset,
+                          true,                             // is cross origin
+                          -1,                               // script id
                           Local(),                   // source map URL
-                          False(isolate),                   // is opaque (?)
-                          False(isolate),                   // is WASM
-                          True(isolate),                    // is ES Module
+                          false,                            // is opaque (?)
+                          false,                            // is WASM
+                          true,                             // is ES Module
                           host_defined_options);
       ScriptCompiler::Source source(source_text, origin, cached_data);
       ScriptCompiler::CompileOptions options;
@@ -270,12 +273,15 @@ void ModuleWrap::Link(const FunctionCallbackInfo& args) {
   Local mod_context = obj->context();
   Local module = obj->module_.Get(isolate);
 
-  const int module_requests_length = module->GetModuleRequestsLength();
+  Local module_requests = module->GetModuleRequests();
+  const int module_requests_length = module_requests->Length();
   MaybeStackBuffer, 16> promises(module_requests_length);
 
   // call the dependency resolve callbacks
   for (int i = 0; i < module_requests_length; i++) {
-    Local specifier = module->GetModuleRequest(i);
+    Local module_request =
+      module_requests->Get(env->context(), i).As();
+    Local specifier = module_request->GetSpecifier();
     Utf8Value specifier_utf8(env->isolate(), specifier);
     std::string specifier_std(*specifier_utf8, specifier_utf8.length());
 
@@ -311,7 +317,7 @@ void ModuleWrap::Instantiate(const FunctionCallbackInfo& args) {
   Local context = obj->context();
   Local module = obj->module_.Get(isolate);
   TryCatchScope try_catch(env);
-  USE(module->InstantiateModule(context, ResolveCallback));
+  USE(module->InstantiateModule(context, ResolveModuleCallback));
 
   // clear resolve cache on instantiate
   obj->resolve_cache_.clear();
@@ -453,12 +459,16 @@ void ModuleWrap::GetStaticDependencySpecifiers(
 
   Local module = obj->module_.Get(env->isolate());
 
-  int count = module->GetModuleRequestsLength();
+  Local module_requests = module->GetModuleRequests();
+  int count = module_requests->Length();
 
   MaybeStackBuffer, 16> specifiers(count);
 
-  for (int i = 0; i < count; i++)
-    specifiers[i] = module->GetModuleRequest(i);
+  for (int i = 0; i < count; i++) {
+    Local module_request =
+      module_requests->Get(env->context(), i).As();
+    specifiers[i] = module_request->GetSpecifier();
+  }
 
   args.GetReturnValue().Set(
       Array::New(env->isolate(), specifiers.out(), count));
@@ -473,9 +483,11 @@ void ModuleWrap::GetError(const FunctionCallbackInfo& args) {
   args.GetReturnValue().Set(module->GetException());
 }
 
-MaybeLocal ModuleWrap::ResolveCallback(Local context,
-                                               Local specifier,
-                                               Local referrer) {
+MaybeLocal ModuleWrap::ResolveModuleCallback(
+    Local context,
+    Local specifier,
+    Local import_assertions,
+    Local referrer) {
   Environment* env = Environment::GetCurrent(context);
   if (env == nullptr) {
     Isolate* isolate = context->GetIsolate();
@@ -524,14 +536,14 @@ static MaybeLocal ImportModuleDynamically(
     Local context,
     Local referrer,
     Local specifier) {
-  Isolate* iso = context->GetIsolate();
+  Isolate* isolate = context->GetIsolate();
   Environment* env = Environment::GetCurrent(context);
   if (env == nullptr) {
-    THROW_ERR_EXECUTION_ENVIRONMENT_NOT_AVAILABLE(iso);
+    THROW_ERR_EXECUTION_ENVIRONMENT_NOT_AVAILABLE(isolate);
     return MaybeLocal();
   }
 
-  EscapableHandleScope handle_scope(iso);
+  EscapableHandleScope handle_scope(isolate);
 
   Local import_callback =
     env->host_import_module_dynamically_callback();
@@ -550,11 +562,11 @@ static MaybeLocal ImportModuleDynamically(
 
   Local object;
 
-  int type = options->Get(iso, HostDefinedOptions::kType)
+  int type = options->Get(isolate, HostDefinedOptions::kType)
                  .As()
                  ->Int32Value(context)
                  .ToChecked();
-  uint32_t id = options->Get(iso, HostDefinedOptions::kID)
+  uint32_t id = options->Get(isolate, HostDefinedOptions::kID)
                     .As()
                     ->Uint32Value(context)
                     .ToChecked();
@@ -580,7 +592,7 @@ static MaybeLocal ImportModuleDynamically(
   Local result;
   if (import_callback->Call(
         context,
-        Undefined(iso),
+        Undefined(isolate),
         arraysize(import_args),
         import_args).ToLocal(&result)) {
     CHECK(result->IsPromise());
@@ -592,16 +604,16 @@ static MaybeLocal ImportModuleDynamically(
 
 void ModuleWrap::SetImportModuleDynamicallyCallback(
     const FunctionCallbackInfo& args) {
-  Isolate* iso = args.GetIsolate();
+  Isolate* isolate = args.GetIsolate();
   Environment* env = Environment::GetCurrent(args);
-  HandleScope handle_scope(iso);
+  HandleScope handle_scope(isolate);
 
   CHECK_EQ(args.Length(), 1);
   CHECK(args[0]->IsFunction());
   Local import_callback = args[0].As();
   env->set_host_import_module_dynamically_callback(import_callback);
 
-  iso->SetHostImportModuleDynamicallyCallback(ImportModuleDynamically);
+  isolate->SetHostImportModuleDynamicallyCallback(ImportModuleDynamically);
 }
 
 void ModuleWrap::HostInitializeImportMetaObjectCallback(
diff --git a/src/module_wrap.h b/src/module_wrap.h
index dc7726f11d94fd..58b233d036515c 100644
--- a/src/module_wrap.h
+++ b/src/module_wrap.h
@@ -93,9 +93,10 @@ class ModuleWrap : public BaseObject {
       const v8::FunctionCallbackInfo& args);
   static void CreateCachedData(const v8::FunctionCallbackInfo& args);
 
-  static v8::MaybeLocal ResolveCallback(
+  static v8::MaybeLocal ResolveModuleCallback(
       v8::Local context,
       v8::Local specifier,
+      v8::Local import_assertions,
       v8::Local referrer);
   static ModuleWrap* GetFromModule(node::Environment*, v8::Local);
 
diff --git a/src/node_contextify.cc b/src/node_contextify.cc
index a0acdb75eede98..a18659d7e8fe8d 100644
--- a/src/node_contextify.cc
+++ b/src/node_contextify.cc
@@ -47,7 +47,6 @@ using v8::FunctionTemplate;
 using v8::HandleScope;
 using v8::IndexedPropertyHandlerConfiguration;
 using v8::Int32;
-using v8::Integer;
 using v8::Isolate;
 using v8::Local;
 using v8::Maybe;
@@ -678,8 +677,8 @@ void ContextifyScript::New(const FunctionCallbackInfo& args) {
   CHECK(args[1]->IsString());
   Local filename = args[1].As();
 
-  Local line_offset;
-  Local column_offset;
+  int line_offset = 0;
+  int column_offset = 0;
   Local cached_data_buf;
   bool produce_cached_data = false;
   Local parsing_context = context;
@@ -689,9 +688,9 @@ void ContextifyScript::New(const FunctionCallbackInfo& args) {
     //                      cachedData, produceCachedData, parsingContext)
     CHECK_EQ(argc, 7);
     CHECK(args[2]->IsNumber());
-    line_offset = args[2].As();
+    line_offset = args[2].As()->Value();
     CHECK(args[3]->IsNumber());
-    column_offset = args[3].As();
+    column_offset = args[3].As()->Value();
     if (!args[4]->IsUndefined()) {
       CHECK(args[4]->IsArrayBufferView());
       cached_data_buf = args[4].As();
@@ -706,9 +705,6 @@ void ContextifyScript::New(const FunctionCallbackInfo& args) {
       CHECK_NOT_NULL(sandbox);
       parsing_context = sandbox->context();
     }
-  } else {
-    line_offset = Integer::New(isolate, 0);
-    column_offset = Integer::New(isolate, 0);
   }
 
   ContextifyScript* contextify_script =
@@ -742,12 +738,12 @@ void ContextifyScript::New(const FunctionCallbackInfo& args) {
   ScriptOrigin origin(filename,
                       line_offset,                          // line offset
                       column_offset,                        // column offset
-                      True(isolate),                        // is cross origin
-                      Local(),                     // script id
+                      true,                                 // is cross origin
+                      -1,                                   // script id
                       Local(),                       // source map URL
-                      False(isolate),                       // is opaque (?)
-                      False(isolate),                       // is WASM
-                      False(isolate),                       // is ES Module
+                      false,                                // is opaque (?)
+                      false,                                // is WASM
+                      false,                                // is ES Module
                       host_defined_options);
   ScriptCompiler::Source source(code, origin, cached_data);
   ScriptCompiler::CompileOptions compile_options =
@@ -1037,11 +1033,11 @@ void ContextifyContext::CompileFunction(
 
   // Argument 3: line offset
   CHECK(args[2]->IsNumber());
-  Local line_offset = args[2].As();
+  int line_offset = args[2].As()->Value();
 
   // Argument 4: column offset
   CHECK(args[3]->IsNumber());
-  Local column_offset = args[3].As();
+  int column_offset = args[3].As()->Value();
 
   // Argument 5: cached data (optional)
   Local cached_data_buf;
@@ -1106,12 +1102,12 @@ void ContextifyContext::CompileFunction(
   ScriptOrigin origin(filename,
                       line_offset,       // line offset
                       column_offset,     // column offset
-                      True(isolate),     // is cross origin
-                      Local(),  // script id
+                      true,              // is cross origin
+                      -1,                // script id
                       Local(),    // source map URL
-                      False(isolate),    // is opaque (?)
-                      False(isolate),    // is WASM
-                      False(isolate),    // is ES Module
+                      false,             // is opaque (?)
+                      false,             // is WASM
+                      false,             // is ES Module
                       host_defined_options);
 
   ScriptCompiler::Source source(code, origin, cached_data);
diff --git a/src/node_errors.cc b/src/node_errors.cc
index 3107f46b4dc652..ab8b513cceee5d 100644
--- a/src/node_errors.cc
+++ b/src/node_errors.cc
@@ -98,8 +98,8 @@ static std::string GetErrorSource(Isolate* isolate,
   const char* filename_string = *filename;
   int linenum = message->GetLineNumber(context).FromJust();
 
-  int script_start = (linenum - origin.ResourceLineOffset()->Value()) == 1
-                         ? origin.ResourceColumnOffset()->Value()
+  int script_start = (linenum - origin.LineOffset()) == 1
+                         ? origin.ColumnOffset()
                          : 0;
   int start = message->GetStartColumn(context).FromMaybe(0);
   int end = message->GetEndColumn(context).FromMaybe(0);
diff --git a/src/node_native_module.cc b/src/node_native_module.cc
index 5a8cf12347d5de..c201c3c491b882 100644
--- a/src/node_native_module.cc
+++ b/src/node_native_module.cc
@@ -7,7 +7,6 @@ namespace native_module {
 using v8::Context;
 using v8::EscapableHandleScope;
 using v8::Function;
-using v8::Integer;
 using v8::Isolate;
 using v8::Local;
 using v8::MaybeLocal;
@@ -260,9 +259,7 @@ MaybeLocal NativeModuleLoader::LookupAndCompile(
   std::string filename_s = std::string("node:") + id;
   Local filename =
       OneByteString(isolate, filename_s.c_str(), filename_s.size());
-  Local line_offset = Integer::New(isolate, 0);
-  Local column_offset = Integer::New(isolate, 0);
-  ScriptOrigin origin(filename, line_offset, column_offset, True(isolate));
+  ScriptOrigin origin(filename, 0, 0, true);
 
   ScriptCompiler::CachedData* cached_data = nullptr;
   {