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runtime.c
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/*
This file is part of shuJIT,
Just In Time compiler for Sun Java Virtual Machine.
Copyright (C) 1998,1999,2000,2001,2002,2003,2004,2005 Kazuyuki Shudo
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
$Id$
*/
#include "compiler.h"
#ifdef METAVM
#include "metavm/metavm.h" // for GET_REMOTE_FLAG()
#include "metavm/NET_shudo_metavm_Proxy_old.h"
#endif // METAVM
extern long JavaStackSize; // declared in threads.h
/*
* returns: none
*/
void invocationHelper(
JHandle *obj, struct methodblock *method, int args_size, ExecEnv *ee,
stack_item *var_base
#ifdef RUNTIME_DEBUG
, int runtime_debug
#endif
) {
void *invoker;
CodeInfo *info;
JavaFrame *cur_frame = ee->current_frame;
int retsize;
int access;
// get CompiledCodeInfo
info = (CodeInfo *)method->CompiledCodeInfo;
#ifdef RUNTIME_DEBUG
if (!info) {
printf("WARNING: CompiledCodeInfo is NULL. (invocationHelper())\n");
fflush(stdout);
printf(" %s#%s %s\n", cbName(fieldclass(&method->fb)),
method->fb.name, method->fb.signature);
fflush(stdout);
}
#endif
sysAssert(method->CompiledCodeInfo != NULL);
retsize = info->ret_size;
#ifdef RUNTIME_DEBUG
if (runtime_debug) {
struct methodblock *cur_mb; char *sig;
int i;
printf(" invoker: %s (0x%x)\n",
nameOfInvoker(method->invoker), (int)(method->invoker));
access = method->fb.access;
cur_mb = cur_frame->current_method;
sig = method->fb.signature;
printf(" local var base: 0x%x\n", (int)var_base);
printf(" 0x%x\n", *(int32_t *)var_base);
printf(" ee: 0x%08x\n", (int)ee);
printf(" current_frame: 0x%08x\n", (int)cur_frame);
printf(" caller method:");
fflush(stdout);
if (cur_mb)
printf(" %s#%s %s",
cbName(fieldclass(&cur_mb->fb)),
cur_mb->fb.name, cur_mb->fb.signature);
else
printf(" (null)");
fflush(stdout);
printf(" (0x%08x)\n", (int)cur_mb);
fflush(stdout);
printf(" obj: 0x%x\n", obj); fflush(stdout);
if (obj) {
printf(" ");
if (access & ACC_STATIC) {
printf("%s", unhand((Hjava_lang_Class *)obj)->name);
}
else if (obj_flags(obj) == T_NORMAL_OBJECT) {
printf("%s", cbName(obj->methods->classdescriptor));
}
else { // array object
printf("array");
}
printf(" (0x%x)", (int)obj);
}
else
printf("(null)");
printf("\n");
printf(" method: ");
printf("%s#%s %s (%x)\n",
cbName(fieldclass(&method->fb)), method->fb.name, sig, (int)method);
fflush(stdout);
printf(" acc: 0x%x", access);
if (access & ACC_NATIVE) printf(" native");
if (access & ACC_MACHINE_COMPILED) printf(" machine_compiled");
if (access & ACC_PUBLIC) printf(" public");
if (access & ACC_PRIVATE) printf(" private");
if (access & ACC_PROTECTED) printf(" protected");
if (access & ACC_STATIC) printf(" static");
if (access & ACC_FINAL) printf(" final");
if (access & ACC_SYNCHRONIZED) printf(" synchronized");
if (access & ACC_ABSTRACT) printf(" abstract");
printf("\n");
printf(" retsize, args_size, nlocals: %d, %d, %d\n",
retsize, args_size, method->nlocals);
fflush(stdout);
i = 0;
if (!(access & ACC_STATIC)) {
printf(" 0x%08x @ 0x%08x ", (int)var_base[0].h, (int)var_base);
fflush(stdout);
showObjectBody("L;", var_base[0].h);
printf("\n");
fflush(stdout);
i++;
}
if (sig[0] == '(') sig++;
for (; i < args_size; i++) {
JHandle *arg = var_base[-i].h;
if ((sig[0] == 'J') || (sig[0] == 'D')) {
stack_item *argp;
i++;
argp = var_base - i;
if (sig[0] == 'J')
printf(" %lld,0x%llx", *((long long *)argp));
else
printf(" %10g", *((double *)argp));
printf(" @ 0x%08x\n", argp);
sig++;
}
else {
printf(" 0x%08x @ 0x%08x ", (int)arg, (int)(var_base - i));
fflush(stdout);
sig = showObjectBody(sig, arg);
printf("\n");
}
fflush(stdout);
}
}
#endif // RUNTIME_DEBUG
#define CALL_INVOKER \
{\
register int ret asm("eax");\
ret = ((bool_t (*)(JHandle*,struct methodblock*,int,ExecEnv*,stack_item*))\
invoker)(obj, method, args_size, ee, var_base);\
if (!ret) goto invhelper_return;\
}
invoker = method->invoker;
#ifndef DIRECT_INVOCATION
if (invoker == sym_invokeJITCompiledMethod) { // compiled method is called
CALL_INVOKER;
goto invhelper_finish;
}
#endif // DIRECT_INVOCATION
info = (CodeInfo *)method->CompiledCodeInfo;
retsize = info->ret_size;
#ifdef DIRECT_INV_NATIVE
if ((invoker == sym_invokeJNINativeMethod) ||
(invoker == sym_invokeJNISynchronizedNativeMethod)
# if JDK_VER >= 12
|| (((uint32_t)invoker >= sym_invokeJNI_min) &&
((uint32_t)invoker <= sym_invokeJNI_max))
# endif
) {
// JNI native method
JavaFrame *old_frame, *frame;
stack_item *optop;
JNIEnv *env;
ClassClass **is_static;
int is_sync;
char *terse_sig;
unsigned char *code;
int argsize;
old_frame = ee->current_frame;
optop = old_frame->optop;
// create a new frame
CREATE_JAVAFRAME_FOR_NATIVE(ee, method, old_frame, frame, args_size);
env = EE2JNIEnv(ee);
access = method->fb.access;
is_sync = access & ACC_SYNCHRONIZED;
is_static = ((access & ACC_STATIC) ? (ClassClass **)&obj : NULL);
terse_sig = info->terse_sig;
code = method->code;
argsize = method->args_size + 1 /* for (JNIEnv *) */;
if (is_static) argsize++;
argsize <<= 2;
if (is_sync) {
monitorEnter2(ee, obj_monitor(obj));
}
#ifdef RUNTIME_DEBUG
# define PUSH_CONSTSTR(STR) \
{\
static char *msg = STR;\
asm("pushl %0" : : "m" (msg) : "esi");\
}
if (runtime_debug) {
printf("call JNI: %s#%s %s\n", cbName(fieldclass(&method->fb)),
method->fb.name, method->fb.signature);
printf(" argsize: %d\n", argsize);
printf(" old_frame: %x\n", old_frame);
printf(" optop: %x\n", optop);
printf(" ee,env: %x,%x\n", ee,env);
printf(" obj: %x ((var_base): %x)\n", obj, var_base[0].i);
printf(" code: %x\n", method->code);
printf(" is_static: %x\n", is_static);
fflush(stdout);
asm("pushl %eax\n\t"
"leal 4(%esp),%eax");
asm("pushal");
asm("pushl %eax");
PUSH_CONSTSTR(" ESP: %x\n");
asm("call " FUNCTION(printf) "\n\t"
"addl $8,%esp");
asm("popal");
asm("popl %eax");
}
#endif
// esi: src addr., edi: dst addr.
asm("movl %0,%%edx\n\t" // edx = argsize
"subl %%edx,%%esp\n\t" // esp -= argsize
"movl %1,%%esi\n\t" // esi = var_base
"movl %%esp,%%edi\n\t" // edi = esp
"movl %%esi,%%ecx\n\t" // ecx = var_base
: : "m" (argsize), "m" (var_base)
: "edx", "esi", "edi", "esp", "ecx");
asm("movl %0,%%edx\n\t" // edx = env
"movl %%edx,(%%edi)\n\t" // *dst = edx
"addl $4,%%edi"
: : "m" (env)
: "edx", "edi");
asm("movl %0,%%edx\n\t" // edx = is_static
"testl %%edx,%%edx\n\t"
"jnz jni_static\n\t"
"subl $4,%%esi\n\t"
"jmp jni_static_done\n\t"
"jni_static:\n\t"
"movl %%edx,%%ecx\n\t" // ecx = is_static
"jni_static_done:\n\t"
"movl %%ecx,(%%edi)\n\t" // *dst = var_base or is_static
"addl $4,%%edi"
: : "m" (is_static)
: "edx", "esi", "ecx", "edi");
#ifdef RUNTIME_DEBUG
// if (runtime_debug)
asm("cmpl $0,%0\n\t"
"je debug_jni_obj_done" : : "m" (runtime_debug));
asm("pushal\n\t"
"pushl %ecx");
PUSH_CONSTSTR(" obj: %x\n");
asm("call printf@PLT\n\t"
"addl $8,%esp\n\t"
"popal\n\t"
"debug_jni_obj_done:");
#endif
asm("movl %0,%%edx" : : "m" (terse_sig) : "edx"); // edx = terse_sig
asm("xorl %%ecx,%%ecx\n\t" // ecx = 0
"jniarg_loop:\n\t"
"movb (%%edx),%%cl\n\t" // ecx = *terse_sig
"incl %%edx\n\t"
"jmp *jniarg_table(,%%ecx,4)\n\t"
"jniarg_obj:\n\t"
"movl (%%esi),%%eax\n\t"
"testl %%eax,%%eax\n\t"
"jz jniarg_obj_null\n\t"
"movl %%esi,%%eax\n\t"
"jniarg_obj_null:\n\t"
"movl %%eax,(%%edi)\n\t"
#ifdef RUNTIME_DEBUG
: : : "ecx", "eax");
// if (runtime_debug)
asm("cmpl $0,%0\n\t"
"je debug_jniarg_obj_done" : : "m" (runtime_debug));
asm("pushal\n\t"
"pushl %eax");
PUSH_CONSTSTR(" argobj: %x\n");
asm("call printf@PLT\n\t"
"addl $8,%esp\n\t"
"popal\n\t"
"debug_jniarg_obj_done:");
asm(
#endif
"subl $4,%%esi\n\t"
"addl $4,%%edi\n\t"
"jmp jniarg_loop\n\t"
"jniarg_32:\n\t"
"movl (%%esi),%%eax\n\t"
#ifdef RUNTIME_DEBUG
: : : "esi", "edi", "eax");
// if (runtime_debug)
asm("cmpl $0,%0\n\t"
"je debug_jniarg_32_done" : : "m" (runtime_debug));
asm("pushal\n\t"
"pushl %eax");
PUSH_CONSTSTR(" arg32: %x\n");
asm("call printf@PLT\n\t"
"addl $8,%esp");
asm("popal\n\t"
"debug_jniarg_32_done:");
asm(
#endif
"subl $4,%%esi\n\t"
"movl %%eax,(%%edi)\n\t"
"addl $4,%%edi\n\t"
"jmp jniarg_loop\n\t"
"jniarg_64:\n\t"
"movl -4(%%esi),%%eax\n\t"
"movl %%eax,(%%edi)\n\t"
"movl (%%esi),%%eax\n\t"
"movl %%eax,4(%%edi)\n\t"
#ifdef RUNTIME_DEBUG
: : : "esi", "edi", "eax");
// if (runtime_debug)
asm("cmpl $0,%0\n\t"
"je debug_jniarg_64_done" : : "m" (runtime_debug));
asm("pushal\n\t"
"pushl 4(%edi)\n\tpushl (%edi)");
PUSH_CONSTSTR(" arg64: %x %x\n");
asm("call printf@PLT\n\t"
"addl $12,%esp\n\t"
"popal\n\t"
"debug_jniarg_64_done:");
asm(
#endif
"subl $8,%%esi\n\t"
"addl $8,%%edi\n\t"
"jmp jniarg_loop\n\t"
"jniarg_done:"
: : : "ecx", "eax", "esi", "edi");
#ifdef RUNTIME_DEBUG
// if (runtime_debug)
asm("cmpl $0,%0\n\t"
"je debug_jniarg_done" : : "m" (runtime_debug));
asm("pushl %eax\n\t"
"leal 4(%esp),%eax\n\t"
"pushal");
asm("pushl 16(%eax)\n\tpushl 12(%eax)\n\t"
"pushl 8(%eax)\n\tpushl 4(%eax)\n\tpushl (%eax)");
PUSH_CONSTSTR(" (esp): %x %x %x %x %x\n");
asm("call printf@PLT\n\t"
"addl $24,%esp\n\t"
"popal\n\tpopl %eax\n\t"
"debug_jniarg_done:");
#endif
// call Java_...()
asm("movl %edx,%edi"); // save terse_sig
#ifndef _WIN32
asm("call *%0\n\t" // call Java_...()
"movl %1,%%ecx\n\t" // ecx = argsize
"addl %%ecx,%%esp" // esp += argsize
: : "m" (code), "m" (argsize)
: "edx", "edi", "ecx", "esp");
#else
asm("call *%0" : : "m" (code)); // call Java_...()
#endif // !_WIN32
#ifdef RUNTIME_DEBUG
// if (runtime_debug)
asm("cmpl $0,%0\n\t"
"je debug_jni_call_done" : : "m" (runtime_debug));
asm("subl $200,%esp\n\tpushal");
asm("pushl %edx\n\tpushl %eax");
PUSH_CONSTSTR(" eax:edx %x:%x\n");
asm("call printf@PLT\n\t"
"addl $12,%esp\n\t"
"popal\n\taddl $200,%esp\n\t"
"debug_jni_call_done:");
#endif
#ifdef RUNTIME_DEBUG
// if (runtime_debug)
asm("cmpl $0,%0\n\t"
"je debug_jni_argsize_done" : : "m" (runtime_debug));
asm("subl $200,%esp\n\tpushal\n\t"
"pushl %ecx");
PUSH_CONSTSTR(" argsize: %x\n");
asm("call printf@PLT\n\t"
"addl $8,%esp\n\t"
"popal\n\taddl $200,%esp\n\t"
"debug_jni_argsize_done:");
#endif
asm("xorl %ecx,%ecx\n\t" // ecx = 0
"movb (%edi),%cl");
#ifdef RUNTIME_DEBUG
// if (runtime_debug)
asm("cmpl $0,%0\n\t"
"je debug_terse_done" : : "m" (runtime_debug));
asm("subl $200,%esp\n\tpushal\n\t"
"pushl %ecx");
PUSH_CONSTSTR(" terse ret: %d\n");
asm("call printf@PLT\n\t"
"addl $8,%esp\n\t"
"popal\n\taddl $200,%esp\n\t"
"debug_terse_done:");
#endif
asm("movl %0,%%esi\n\t" // esi = optop
"jmp *jniret_table(,%%ecx,4)"
: : "m" (optop)
: "ecx", "esi");
asm("jniret_void:\n\t"
"movl %esi,%eax\n\t"
"jmp jniret_done\n\t"
"jniret_obj:");
#ifdef RUNTIME_DEBUG
// if (runtime_debug)
asm("cmpl $0,%0\n\t"
"je debug_retobj_done" : : "m" (runtime_debug));
asm("subl $200,%esp\n\tpushal\n\t"
"pushl %eax");
PUSH_CONSTSTR(" retobj: %x\n");
asm("call printf@PLT\n\t"
"addl $8,%esp\n\t"
"popal\n\taddl $200,%esp\n\t"
"debug_retobj_done:");
#endif
asm("testl %eax,%eax\n\t"
"jz jniret_int32\n\t"
"movl (%eax),%eax");
#ifdef _WIN32
asm("jniret_s8:");
CAST_INT8_TO_INT32(%eax);
asm("jmp jniret_int32");
asm("jniret_u8:");
CAST_UINT8_TO_INT32(%eax);
asm("jmp jniret_int32");
asm("jniret_s16:");
CAST_INT16_TO_INT32(%eax);
asm("jmp jniret_int32");
asm("jniret_u16:");
CAST_UINT16_TO_INT32(%eax);
asm("jmp jniret_int32");
#endif
asm("jniret_int32:");
#ifdef RUNTIME_DEBUG
// if (runtime_debug)
asm("cmpl $0,%0\n\t"
"je debug_ret32_done" : : "m" (runtime_debug));
asm("subl $200,%esp\n\tpushal\n\t"
"pushl %eax");
PUSH_CONSTSTR(" ret32: %x\n");
asm("call printf@PLT\n\t"
"addl $8,%esp\n\t"
"popal\n\taddl $200,%esp\n\t"
"debug_ret32_done:");
#endif
asm("movl %eax,(%esi)\n\t" // *optop = eax
"leal 4(%esi),%eax\n\t" // eax = optop + 4
"jmp jniret_done\n\t"
"jniret_fp32:\n\t"
"fstps (%esi)\n\t"
"leal 4(%esi),%eax\n\t" // eax = optop + 4
"jmp jniret_done\n\t"
"jniret_int64:\n\t"
"movl %eax,(%esi)\n\t"
"leal 8(%esi),%eax\n\t" // eax = optop + 8
"movl %edx,4(%esi)");
#ifdef RUNTIME_DEBUG
// if (runtime_debug)
asm("cmpl $0,%0\n\t"
"je debug_ret64_done" : : "m" (runtime_debug));
asm("subl $200,%esp\n\tpushal\n\t"
"pushl 4(%esi)\n\tpushl (%esi)");
PUSH_CONSTSTR(" ret64: %08x %08x\n");
asm("call printf@PLT\n\t"
"addl $12,%esp\n\t"
"popal\n\taddl $200,%esp\n\t"
"debug_ret64_done:");
#endif
asm("jmp jniret_done\n\t"
"jniret_fp64:\n\t"
"fstpl (%esi)\n\t"
"leal 8(%esi),%eax\n\t" // eax = optop + 8
"jmp jniret_done");
asm("jniarg_table:\n\t"
".long jniarg_done\n\t"
".long jniarg_obj\n\t"
".long jniarg_64\n\t"
".long jniarg_64\n\t"
".long jniarg_32\n\t"
".long jniarg_32\n\t"
".long jniarg_32\n\t"
".long jniarg_32\n\t"
".long jniarg_32\n\t"
".long jniarg_32\n\t"
".long jniarg_done\n\t"
".long jniarg_done\n\t"
"jniret_table:\n\t"
".long jniret_done\n\t"
".long jniret_obj\n\t"
".long jniret_int64\n\t"
".long jniret_fp64\n\t"
#ifdef _WIN32
".long jniret_u8\n\t" // boolean
".long jniret_s8\n\t" // byte
".long jniret_s16\n\t" // short
".long jniret_u16\n\t" // char
#else
".long jniret_int32\n\t"
".long jniret_int32\n\t"
".long jniret_int32\n\t"
".long jniret_int32\n\t"
#endif
".long jniret_int32\n\t"
".long jniret_fp32\n\t"
".long jniret_void\n\t"
".long jniret_done");
asm("jniret_done:");
{
register stack_item *eax asm("%eax");
optop = eax;
}
ee->current_frame = old_frame;
if (is_sync) {
monitorExit2(ee, obj_monitor(obj));
}
#ifdef RUNTIME_DEBUG
if (runtime_debug) {
printf("JNI done: %s %s#%s\n", cbName(fieldclass(&method->fb)),
method->fb.name, method->fb.signature);
fflush(stdout);
}
#endif
if (!exceptionOccurred(ee)) {
old_frame->optop = optop;
// update frame->optop only in case that an exception occurred
goto invhelper_finish;
}
goto invhelper_return;
}
#endif // DIRECT_INV_NATIVE
#ifdef DIRECT_INV_NATIVE
else if ((invoker == sym_invokeNativeMethod) ||
(invoker == sym_invokeSynchronizedNativeMethod)) {
// old fashion (NMI) native method
JavaFrame *old_frame;
stack_item *optop;
int is_static, is_sync;
char *terse_sig;
char *code;
int argsize;
#ifdef RUNTIME_DEBUG
if (runtime_debug) {
printf("call NMI: %s#%s %s\n", cbName(fieldclass(&method->fb)),
method->fb.name, method->fb.signature);
fflush(stdout);
}
#endif
code = info->code;
if (!code) {
// resolve an address of old the native method not wrapped by stub
char buf[300]; char *limit = buf + 300, *bufp = buf;
bufp += mangleUTFString(cbName(fieldclass(&method->fb)),
bufp, limit - bufp, MangleUTF_Class);
if (limit - bufp > 1) *bufp++ = '_';
bufp += mangleUTFString(method->fb.name, bufp, limit - bufp,
MangleUTF_Field);
code = (char *)symbolInSystemClassLoader(buf);
#ifdef RUNTIME_DEBUG
if (runtime_debug) {
printf(" func: %s (%x)\n", buf, code);
fflush(stdout);
}
#endif
if (!code) goto invoke_via_invoker;
info->code = code;
}
old_frame = ee->current_frame;
optop = old_frame->optop;
#if 0
// create a new frame
CREATE_JAVAFRAME_FOR_NATIVE(ee, method, old_frame, frame, args_size);
#endif
access = method->fb.access;
is_sync = access & ACC_SYNCHRONIZED;
is_static = access & ACC_STATIC;
terse_sig = info->terse_sig;
argsize = method->args_size;
if (is_static) argsize++;
argsize <<= 2;
if (is_sync) {
monitorEnter2(ee, obj_monitor(obj));
}
// esi: src addr., edi: dst addr.
asm("movl %0,%%edx\n\t"
"subl %%edx,%%esp\n\t"
"movl %1,%%esi\n\t"
"movl %%esp,%%edi"
: : "m" (argsize), "m" (var_base)
: "edx", "esi", "edi", "esp");
asm("movl %0,%%edx\n\t" // edx = is_static
"testl %%edx,%%edx\n\t"
"jnz nmi_static\n\t"
"movl %1,%%eax\n\t" // eax = obj
"subl $4,%%esi\n\t"
"jmp nmi_static_done\n\t"
"nmi_static:\n\t"
"xorl %%eax,%%eax\n\t" // eax = NULL
"nmi_static_done:\n\t"
"movl %%eax,(%%edi)\n\t" // *dst = obj or NULL
"addl $4,%%edi"
: : "m" (is_static), "m" (obj)
: "edx", "eax", "esi", "edi");
asm("movl %0,%%edx" : : "m" (terse_sig) : "edx"); // edx = terse_sig
asm("xorl %%ecx,%%ecx\n\t" // ecx = 0
"nmiarg_loop:\n\t"
"movb (%%edx),%%cl\n\t" // ecx = *terse_sig
"incl %%edx\n\t"
"jmp *nmiarg_table(,%%ecx,4)\n\t"
"nmiarg_32:\n\t"
"movl (%%esi),%%eax\n\t"
"subl $4,%%esi\n\t"
"movl %%eax,(%%edi)\n\t"
"addl $4,%%edi\n\t"
"jmp nmiarg_loop\n\t"
"nmiarg_64:\n\t"
"movl -4(%%esi),%%eax\n\t"
"movl %%eax,(%%edi)\n\t"
"movl (%%esi),%%eax\n\t"
"movl %%eax,4(%%edi)\n\t"
"subl $8,%%esi\n\t"
"addl $8,%%edi\n\t"
"jmp nmiarg_loop\n\t"
"nmiarg_done:"
: : : "ecx", "eax", "esi", "edi");
// call native function
asm("movl %%edx,%%edi\n\t" // save terse_sig
"call *%0\n\t" // call
"movl %1,%%ecx\n\t" // ecx = argsize
"addl %%ecx,%%esp" // esp += argsize
: : "m" (code), "m" (argsize)
: "edx", "edi", "ecx", "esp");
asm("xorl %%ecx,%%ecx\n\t" // ecx = 0
"movb (%%edi),%%cl\n\t"
"movl %0,%%esi\n\t" // esi = optop
"jmp *nmiret_table(,%%ecx,4)"
: : "m" (optop));
asm("nmiret_void:\n\t"
"movl %esi,%eax\n\t"
"jmp nmiret_done");
#ifdef _WIN32
asm("nmiret_s8:");
CAST_INT8_TO_INT32(%eax);
asm("jmp nmiret_int32");
asm("nmiret_u8:");
CAST_UINT8_TO_INT32(%eax);
asm("jmp nmiret_int32");
asm("nmiret_s16:");
CAST_INT16_TO_INT32(%eax);
asm("jmp nmiret_int32");
asm("nmiret_u16:");
CAST_UINT16_TO_INT32(%eax);
asm("jmp nmiret_int32");
#endif
asm("nmiret_int32:\n\t"
"movl %eax,(%esi)\n\t"
"leal 4(%esi),%eax\n\t"
"jmp nmiret_done\n\t"
"nmiret_fp32:\n\t"
"fstps (%esi)\n\t"
"leal 4(%esi),%eax\n\t"
"jmp nmiret_done\n\t"
"nmiret_int64:\n\t"
"movl %eax,(%esi)\n\t"
"leal 8(%esi),%eax\n\t"
"movl %edx,4(%esi)");
#ifdef RUNTIME_DEBUG
if (runtime_debug) {
asm("subl $200,%esp\n\tpushal\n\t"
"pushl 4(%esi)\n\tpushl (%esi)");
PUSH_CONSTSTR(" ret64: %08x %08x\n");
asm("call printf@PLT\n\t"
"addl $12,%esp");
asm("popal\n\taddl $200,%esp");
}
#endif // RUNTIME_DEBUG
asm("jmp nmiret_done\n\t"
"nmiret_fp64:\n\t"
"fstpl (%esi)\n\t"
"leal 8(%esi),%eax\n\t"
"jmp nmiret_done");
asm("nmiarg_table:\n\t"
".long nmiarg_done\n\t"
".long nmiarg_32\n\t"
".long nmiarg_64\n\t"
".long nmiarg_64\n\t"
".long nmiarg_32\n\t"
".long nmiarg_32\n\t"
".long nmiarg_32\n\t"
".long nmiarg_32\n\t"
".long nmiarg_32\n\t"
".long nmiarg_32\n\t"
".long nmiarg_done\n\t"
".long nmiarg_done\n\t"
"nmiret_table:\n\t"
".long nmiret_done\n\t"
".long nmiret_int32\n\t"
".long nmiret_int64\n\t"
".long nmiret_fp64\n\t"
#ifdef _WIN32
".long nmiret_u8\n\t" // boolean
".long nmiret_s8\n\t" // byte
".long nmiret_s16\n\t" // short
".long nmiret_u16\n\t" // char
#else
".long nmiret_int32\n\t"
".long nmiret_int32\n\t"
".long nmiret_int32\n\t"
".long nmiret_int32\n\t"
#endif
".long nmiret_int32\n\t"
".long nmiret_fp32\n\t"
".long nmiret_void\n\t"
".long nmiret_done");
asm("nmiret_done:");
{
register stack_item *eax asm("%eax");
optop = eax;
}
#if 0
ee->current_frame = old_frame;
#endif
if (is_sync) {
monitorExit2(ee, obj_monitor(obj));
}
#ifdef RUNTIME_DEBUG
if (runtime_debug) {
printf("NMI done: %s#%s %s\n", cbName(fieldclass(&method->fb)),
method->fb.name, method->fb.signature);
fflush(stdout);
}
#endif
if (!exceptionOccurred(ee)) {
old_frame->optop = optop;
// update frame->optop only in case that an exception occurred
goto invhelper_finish;
}
goto invhelper_return;
}
else
#endif // DIRECT_INV_NATIVE
{
// normal Java, native method or compileAndInvokeMethod()
stack_item *sp, *optop;
char *argsizes;
invoke_via_invoker:
// restack from native stack to JVM stack
sp = var_base;
optop = ee->current_frame->optop;
argsizes = info->argsizes;
while (*argsizes) {
if (*argsizes == 1) { optop[0] = sp[0]; optop++; sp--; }
else { optop[0] = sp[-1]; optop[1] = sp[0]; optop += 2; sp -= 2; }
argsizes++;
}
#if defined(WORKAROUND_FOR_FREEBSD_131P6) && (JDK_VER >= 12) && (defined(__FreeBSD__) || defined(__NetBSD__))
// unblock SIGTRAP to get around a problem of FreeBSD JDK 1.3.1-p6
{
sigset_t set;
sigemptyset(&set);
sigaddset(&set, SIGTRAP);
sigprocmask(SIG_UNBLOCK, &set, NULL);
}
#endif
CALL_INVOKER;
if ((invoker == sym_invokeJavaMethod) ||
(invoker == sym_invokeSynchronizedJavaMethod)) {
// normal Java method
int exec_ret;
stack_item *old_optop;
#ifdef HPROF
// profiling
# if JDK_VER >= 12
if (jvmpi_event_flags & JVMPI_EVENT_METHOD_ENTRY_ON)
jvmpi_method_entry(ee, o);
# else
if (java_monitor) frame->mon_starttime = now();
# endif // JDK_VER
#endif // HPROF
#ifdef RUNTIME_DEBUG
if (runtime_debug) {
printf("call ExecuteJava(runtime.c): %s#%s.\n",
cbName(fieldclass(&method->fb)), method->fb.name);
fflush(stdout);
}
#endif
exec_ret = pExecuteJava(method->code, ee);
#ifdef RUNTIME_DEBUG
if (runtime_debug) {
printf("ExecuteJava(runtime.c) done: %s#%s.\n",
cbName(fieldclass(&method->fb)), method->fb.name);
fflush(stdout);
}
#endif
cur_frame = ee->current_frame; // load
old_optop = cur_frame->optop;
#if defined(EXECUTEJAVA_IN_ASM) && (JDK_VER < 12)
if (cur_frame->monitor) {
monitorExit2(ee, (MONITOR_T)cur_frame->monitor);
}
#endif // EXECUTEJAVA_IN_ASM
cur_frame = cur_frame->prev;
ee->current_frame = cur_frame;
if (!exec_ret) {
#ifdef RUNTIME_DEBUG
if (runtime_debug) {
printf(" ExecuteJava() returned false.\n");
if (exceptionOccurred(ee))
printf(" clazz of exc: %s\n",
cbName(ee->exception.exc->methods->classdescriptor));
fflush(stdout);
}
#endif
goto invhelper_return;
}
#ifdef EXECUTEJAVA_IN_ASM
#if JDK_VER >= 12
if (executejava_in_asm) {
#endif
// This operation is required
// only with x86 assembly ver. of executeJava.c
{
stack_item *optop;
if (retsize != 0) {
optop = cur_frame->optop;
if (retsize == 1) {
optop[0] = old_optop[-1]; optop++;
}
else { // retsize == 2
optop[0] = old_optop[-2]; optop[1] = old_optop[-1]; optop += 2;
}
cur_frame->optop = optop;
}
}
#if JDK_VER >= 12
} // if (executejava_in_asm)
#endif
#endif // EXECUTEJAVA_IN_ASM
} // normal Java method
} // normal Java or native method or compileAndInvokeMethod()
invhelper_finish:
#ifdef RUNTIME_DEBUG
// if (runtime_debug)
asm("cmpl $0,%0\n\t"
"je debug_invhelper_done" : : "m" (runtime_debug));
{
stack_item *optop;
optop = ee->current_frame->optop;
if (retsize > 0) {
printf(" optop[-1]: 0x%x %d %g\n",
optop[-1].i, optop[-1].i, optop[-1].f);
if (retsize > 1) {
printf(" optop[-2]: 0x%x %d %g\n",
optop[-2].i, optop[-2].i, optop[-2].f);
}
fflush(stdout);
}
if (retsize != 2) {
printf(" ret val: ");
showObjectBody(((CodeInfo *)method->CompiledCodeInfo)->ret_sig,
optop[-1].h);
printf("\n");
fflush(stdout);
}
}
asm("debug_invhelper_done:");
#endif
// set return value to %edx and %ecx
{
JavaFrame *frame = ee->current_frame;
stack_item *optop;
sysAssert((retsize >= 0) && (retsize <= 2));
optop = (frame->optop -= retsize);
asm("movl %0,%%edx" : : "m" (optop[0].i) : "edx");
asm("movl %0,%%ecx" : : "m" (optop[1].i) : "ecx");
return;
// same as:
// if (retsize == 1) {
// %edx = frame->optop[-1].i; // state 1
// frame->optop--;
// }
// else if (retsize == 2) {
// %ecx = optop[-1].i; %edx = optop[-2].i; // state 4
// frame->optop -= 2;
// }
}
invhelper_return:
return;
}
/*
* returns: method to be invoked, NULL if an exception occurred.
*/
struct methodblock *getInterfaceMethod(
JHandle *obj, ExecEnv *ee,
struct methodblock *imethod, unsigned char *guessptr
#ifdef INVINTF_INLINE_CACHE
, unsigned char *cache_ptr
#endif
#ifdef RUNTIME_DEBUG
, int runtime_debug
#endif
) {
struct methodblock *method;
ClassClass *intfClazz;
unsigned int offset;
ClassClass *cb;
struct methodtable *mtable;
struct imethodtable *imtable;
int guess;
intfClazz = fieldclass(&imethod->fb);
offset = imethod->fb.u.offset;
guess = *guessptr;
#ifdef RUNTIME_DEBUG
if (runtime_debug) {
printf(" intf method: %s#%s %s, guess: %d\n",