Hi folks, I am trying to use arm gcc 5.3 to build part of android AOSP and hit following issue with arm gcc 5.3:

The gcc cmd line is like: /opt/work/acadine/mem_shrink/B2G-v2.5/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-5.3-linaro/bin/arm-linux-androideabi-g++ -I external/libcxx/include -I system/core/libbacktrace -I out/target/product/linaro_arm/obj/SHARED_LIBRARIES/libbacktrace_intermediates -I out/target/product/linaro_arm/gen/SHARED_LIBRARIES/libbacktrace_intermediates -I libnativehelper/include/nativehelper -I system/core/base/include -I external/libunwind/include -isystem system/core/include -isystem system/media/audio/include -isystem hardware/libhardware/include -isystem hardware/libhardware_legacy/include -isystem hardware/ril/include -isystem libnativehelper/include -isystem frameworks/native/include -isystem frameworks/native/opengl/include -isystem frameworks/av/include -isystem frameworks/base/include -isystem out/target/product/linaro_arm/obj/include -isystem bionic/libc/arch-arm/include -isystem bionic/libc/include -isystem bionic/libc/kernel/uapi -isystem bionic/libc/kernel/uapi/asm-arm -isystem bionic/libm/include -isystem bionic/libm/include/arm -c -fno-exceptions -Wno-multichar -msoft-float -ffunction-sections -fdata-sections -funwind-tables -fstack-protector -Wa,--noexecstack -Werror=format-security -D_FORTIFY_SOURCE=2 -fno-short-enums -no-canonical-prefixes -fno-canonical-system-headers -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -include build/core/combo/include/arch/linux-arm/AndroidConfig.h -I build/core/combo/include/arch/linux-arm/ -Wno-psabi -mthumb-interwork -DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Winit-self -Wpointer-arith -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -DNDEBUG -g -Wstrict-aliasing=2 -fgcse-after-reload -frerun-cse-after-loop -frename-registers -DNDEBUG -UDEBUG -fvisibility-inlines-hidden -DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Winit-self -Wpointer-arith -Wsign-promo -std=gnu++11 -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -DNDEBUG -UDEBUG -mthumb -Os -fomit-frame-pointer -fno-strict-aliasing -fno-rtti -Wall -Werror -fPIC -D_USING_LIBCXX -std=gnu++11 -Werror=int-to-pointer-cast -Werror=pointer-to-int-cast -MD -MF out/target/product/linaro_arm/obj/SHARED_LIBRARIES/libbacktrace_intermediates/UnwindCurrent.d -o out/target/product/linaro_arm/obj/SHARED_LIBRARIES/libbacktrace_intermediates/UnwindCurrent.o system/core/libbacktrace/UnwindCurrent.cpp

And I got error: /tmp/ccZ40ViQ.s: Assembler messages: /tmp/ccZ40ViQ.s:1752: Error: selected processor does not support ARM mode `cbnz r6,.L91' /tmp/ccZ40ViQ.s:1758: Error: selected processor does not support ARM mode `cbnz r0,.L92' /tmp/ccZ40ViQ.s:1763: Error: selected processor does not support ARM mode `cbz r1,.L107' /tmp/ccZ40ViQ.s:1941: Error: selected processor does not support ARM mode `cbz r6,.L100'

But if I use the arm gcc 4.9, there is no any build issue.

the "-dumpspecs" output of gcc 5.3 was attached. Thanks.

Regards Yin, Fengwei