problems build android-7.0.0_r1 with gcc

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Yingchun Li

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Oct 26, 2016, 1:01:12 PM10/26/16

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I compiled android-n with gcc, when build bionic/libc/ with the

prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.9/, the compile errors list as following:

mmma bionic/libc/ -B

FAILED: /bin/bash -c "(PWD=/proc/self/cwd prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.9/bin/arm-linux-androideabi-g++ -I bionic/libc -I bionic/libc/malloc_debug -I out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_malloc_debug_intermediates -I out/target/product/etau-V2000AN/gen/SHARED_LIBRARIES/libc_malloc_debug_intermediates -I libnativehelper/include/nativehelper \$(cat out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_malloc_debug_intermediates/import_includes) -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/etau-V2000AN/obj/include -isystem bionic/libc/arch-arm/include -isystem bionic/libc/include -isystem bionic/libc/kernel/uapi -isystem bionic/libc/kernel/common -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-strong -Wa,--noexecstack -Werror=format-security -D_FORTIFY_SOURCE=2 -fno-short-enums -no-canonical-prefixes -fno-canonical-system-headers -mcpu=cortex-a7 -D__ARM_FEATURE_LPAE=1 -mfloat-abi=softfp -mfpu=neon -fno-builtin-sin -fno-strict-volatile-bitfields -Wno-psabi -mthumb-interwork -DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Winit-self -Wpointer-arith -fdiagnostics-color -fdebug-prefix-map=/proc/self/cwd= -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 -Wsign-promo -mthumb -Os -fomit-frame-pointer -fno-strict-aliasing -fno-rtti -Wall -Werror -fno-stack-protector -Wno-error=format-zero-length -fPIC -D_USING_LIBCXX -std=gnu++11 -MD -MF out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_malloc_debug_intermediates/malloc_debug.d -o out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_malloc_debug_intermediates/malloc_debug.o bionic/libc/malloc_debug/malloc_debug.cpp ) && (cp out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_malloc_debug_intermediates/malloc_debug.d out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_malloc_debug_intermediates/malloc_debug.P; sed -e 's/#.*//' -e 's/^[^:]*: *//' -e 's/ *\\\\\$//' -e '/^\$/ d' -e 's/\$/ :/' < out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_malloc_debug_intermediates/malloc_debug.d >> out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_malloc_debug_intermediates/malloc_debug.P; rm -f out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_malloc_debug_intermediates/malloc_debug.d )"

bionic/libc/malloc_debug/malloc_debug.cpp: In function 'void* debug_calloc(size_t, size_t)':

bionic/libc/malloc_debug/malloc_debug.cpp:546:49: error: '__builtin_mul_overflow' was not declared in this scope

if (__builtin_mul_overflow(nmemb, bytes, &size)) {

bionic/libc/malloc_debug/malloc_debug.cpp:557:70: error: '__builtin_add_overflow' was not declared in this scope

if (__builtin_add_overflow(size, g_debug->extra_bytes(), &real_size)) {

bionic/libc/malloc_debug/malloc_debug.cpp: In function 'int debug_iterate(uintptr_t, size_t, void (*)(uintptr_t, size_t, void*), void*)':

bionic/libc/malloc_debug/malloc_debug.cpp:606:24: error: declaration of 'void (* debug_iterate(uintptr_t, size_t, void (*)(uintptr_t, size_t, void*), void*)::iterate_ctx::callback)(uintptr_t, size_t, void*)' [-fpermissive]

decltype(callback) callback;

bionic/libc/malloc_debug/malloc_debug.cpp:602:60: error: changes meaning of 'callback' from 'void (* callback)(uintptr_t, size_t, void*)' [-fpermissive]

void (*callback)(uintptr_t base, size_t size, void* arg), void* arg) {

bionic/libc/malloc_debug/malloc_debug.cpp:607:19: error: declaration of 'void* debug_iterate(uintptr_t, size_t, void (*)(uintptr_t, size_t, void*), void*)::iterate_ctx::arg' [-fpermissive]

decltype(arg) arg;

bionic/libc/malloc_debug/malloc_debug.cpp:602:69: error: changes meaning of 'arg' from 'void* arg' [-fpermissive]

void (*callback)(uintptr_t base, size_t size, void* arg), void* arg) {

ninja: build stopped: subcommand failed.

make: *** [ninja_wrapper] Error 1

Because __builtin_add_overflow is the new gcc feature after 5.0

So I download a gcc 6.1 from Linaro

(https://android-git.linaro.org/gitweb/platform/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-6.1-linaro.git),

other issues happened:

FAILED: /bin/bash -c "prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-6.1/bin/arm-linux-androideabi-g++ -nostdlib -Wl,-soname,libc.so -Wl,--gc-sections -Wl,-shared -Lout/target/product/etau-V2000AN/obj/lib out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_intermediates/arch-common/bionic/crtbrand.o out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_intermediates/arch-common/bionic/crtend_so.o out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_intermediates/bionic/malloc_common.o out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_intermediates/bionic/libc_init_dynamic.o out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_intermediates/bionic/NetdClient.o out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_intermediates/arch-common/bionic/crtbegin_so.o out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_intermediates/arch-arm/bionic/exidx_dynamic.o out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_intermediates/arch-arm/bionic/atexit_legacy.o -Wl,--whole-archive out/target/product/etau-V2000AN/obj/STATIC_LIBRARIES/libc_common_intermediates/libc_common.a out/target/product/etau-V2000AN/obj/STATIC_LIBRARIES/libjemalloc_intermediates/libjemalloc.a -Wl,--no-whole-archive out/target/product/etau-V2000AN/obj/STATIC_LIBRARIES/libcompiler_rt-extras_intermediates/libcompiler_rt-extras.a prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-6.1/bin/../lib/gcc/arm-linux-androideabi/6.1.1/../../../../arm-linux-androideabi/lib/libatomic.a prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-6.1/bin/../lib/gcc/arm-linux-androideabi/6.1.1/libgcc.a -ldl -o out/target/product/etau-V2000AN/obj/SHARED_LIBRARIES/libc_intermediates/LINKED/libc.so -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -Wl,--build-id=md5 -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--icf=safe -Wl,--hash-style=gnu -Wl,--no-undefined-version -Wl,--no-fix-cortex-a8 -Wl,--hash-style=both -Wl,--version-script,bionic/libc/libc.arm.map -Wl,--no-undefined"

/home/user/rda-n/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-6.1/bin/../lib/gcc/arm-linux-androideabi/6.1.1/../../../../arm-linux-androideabi/bin/ld: error: version script assignment of LIBC_PRIVATE to symbol __divdi3 failed: symbol not defined

collect2: error: ld returned 1 exit status

Any help will be very appreciated.

Dan Willemsen

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Oct 26, 2016, 1:12:12 PM10/26/16

to Android Building

Try removing `USE_CLANG_PLATFORM_BUILD := false` so that you're building with Clang instead of GCC. All the AOSP devices that I checked are building with Clang by default in android-7.0.0_r1, and the default for that variable if unset was switched to true.

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Yingchun Li

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Oct 27, 2016, 11:23:37 AM10/27/16

to Android Building

In fact, there is no error with clang, but binaries generated with CLANG is larger than GCC, so

I want to use GCC compile the whole project.

With no lucky, the bionic libc encounter compile errors firstly(maybe a lot of other modules).

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