some notes and flags

configs/arm-zephyr-eabi.config

@@ -7,4 +7,7 @@ CT_TARGET_CFLAGS="-ftls-model=local-exec"
 CT_MULTILIB=y
 CT_CC_GCC_MULTILIB_LIST="rmprofile"
 CT_LIBC_NEWLIB_NANO_TARGET_CFLAGS="-mthumb-interwork"
-CT_CC_GCC_EXTRA_CONFIG_ARRAY="--with-gnu-ld --with-gnu-as --enable-initfini-array --enable-libatomic"
+CT_CC_GCC_EXTRA_CONFIG_ARRAY="--with-gnu-ld --with-gnu-as --enable-initfini-array"
+
+CT_DEBUG_CT=y
+CT_DEBUG_CT_SAVE_STEPS=y

ubuntu.md

@@ -0,0 +1,8 @@
+sudo apt install autoconf libgmp3-dev libncurses-dev flex texinfo unzip help2man libtool libtool-bin bison
+
+./contrib/linux_build_toolchain.sh -c arm-zephyr-eabi -s /home/txie/sdk-ng-atomic -o /home/txie/sdk-build
+
+fetch tags:
+
+git fetch --tags https://github.com/zephyrproject-rtos/sdk-ng
+