The kernel build command failed when debug symbols are included in the build.
I have to add __attribute__((optimize("-g0"))) to the following functions to successfully build the kernel.
./lib/raid6/neon4.c
void raid6_neon4_gen_syndrome_real(int disks, unsigned long bytes, void **ptrs)
void raid6_neon4_xor_syndrome_real(int disks, int start, int stop,unsigned long bytes, void **ptrs)
./lib/raid6/neon8.c
void raid6_neon8_gen_syndrome_real(int disks, unsigned long bytes, void **ptrs)
void raid6_neon8_xor_syndrome_real(int disks, int start, int stop, unsigned long bytes, void **ptrs)
< The build command >
KERNEL=kernel7
make V=1 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- zImage modules dtbs
< GCC setting >
osboxes@osboxes:~/raspbian$ arm-linux-gnueabihf-gcc -v
Using built-in specs.
COLLECT_GCC=arm-linux-gnueabihf-gcc
Target: arm-linux-gnueabihf
Configured with: /home/zhehe01/work/bzr/pi-build/builds/arm-linux-gnueabihf-raspbian-linux/.build/src/gcc-linaro-4.8-2014.03/configure --build=x86_64-build_unknown-linux-gnu --host=x86_64-build_unknown-linux-gnu --target=arm-linux-gnueabihf --prefix=/home/zhehe01/work/bzr/pi-build/builds/arm-linux-gnueabihf-raspbian-linux/install --with-sysroot=/home/zhehe01/work/bzr/pi-build/builds/arm-linux-gnueabihf-raspbian-linux/install/arm-linux-gnueabihf/libc --enable-languages=c,c++,fortran --disable-multilib --enable-multiarch --with-arch=armv6 --with-tune=arm1176jz-s --with-fpu=vfp --with-float=hard --with-pkgversion='crosstool-NG linaro-1.13.1+bzr2650 - Linaro GCC 2014.03' --with-bugurl=https://bugs.launchpad.net/gcc-linaro --enable-__cxa_atexit --enable-libmudflap --enable-libgomp --enable-libssp --with-gmp=/home/zhehe01/work/bzr/pi-build/builds/arm-linux-gnueabihf-raspbian-linux/.build/arm-linux-gnueabihf/build/static --with-mpfr=/home/zhehe01/work/bzr/pi-build/builds/arm-linux-gnueabihf-raspbian-linux/.build/arm-linux-gnueabihf/build/static --with-mpc=/home/zhehe01/work/bzr/pi-build/builds/arm-linux-gnueabihf-raspbian-linux/.build/arm-linux-gnueabihf/build/static --with-isl=/home/zhehe01/work/bzr/pi-build/builds/arm-linux-gnueabihf-raspbian-linux/.build/arm-linux-gnueabihf/build/static --with-cloog=/home/zhehe01/work/bzr/pi-build/builds/arm-linux-gnueabihf-raspbian-linux/.build/arm-linux-gnueabihf/build/static --with-libelf=/home/zhehe01/work/bzr/pi-build/builds/arm-linux-gnueabihf-raspbian-linux/.build/arm-linux-gnueabihf/build/static --enable-threads=posix --disable-libstdcxx-pch --enable-linker-build-id --enable-plugin --enable-gold --with-local-prefix=/home/zhehe01/work/bzr/pi-build/builds/arm-linux-gnueabihf-raspbian-linux/install/arm-linux-gnueabihf/libc --enable-c99 --enable-long-long --with-float=hard
Thread model: posix
gcc version 4.8.3 20140303 (prerelease) (crosstool-NG linaro-1.13.1+bzr2650 - Linaro GCC 2014.03)
< Error message >
make -f ./scripts/Makefile.build obj=lib/lzo
(cat /dev/null; echo kernel/lib/lzo/lzo_compress.ko;) > lib/lzo/modules.order
make -f ./scripts/Makefile.build obj=lib/raid6
arm-linux-gnueabihf-gcc -Wp,-MD,lib/raid6/.neon4.o.d -nostdinc -isystem /home/osboxes/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/include -I./arch/arm/include -I./arch/arm/include/generated -I./include -I./arch/arm/include/uapi -I./arch/arm/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/kconfig.h -D__KERNEL__ -mlittle-endian -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -fshort-wchar -Werror-implicit-function-declaration -Wno-format-security -std=gnu89 -fno-PIE -fno-dwarf2-cfi-asm -fno-omit-frame-pointer -mapcs -mno-sched-prolog -fno-ipa-sra -mabi=aapcs-linux -mno-thumb-interwork -mfpu=vfp -funwind-tables -marm -D__LINUX_ARM_ARCH__=7 -march=armv7-a -msoft-float -Uarm -fno-delete-null-pointer-checks -O2 -Wno-maybe-uninitialized --param=allow-store-data-races=0 -DCC_HAVE_ASM_GOTO -Wframe-larger-than=1024 -fno-stack-protector -Wno-unused-but-set-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -fno-var-tracking-assignments -g -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fno-merge-all-constants -fmerge-constants -fno-stack-check -fconserve-stack -Werror=implicit-int -Werror=strict-prototypes -ffreestanding -mfloat-abi=softfp -mfpu=neon -DMODULE -DKBUILD_BASENAME='"neon4"' -DKBUILD_MODNAME='"raid6_pq"' -c -o lib/raid6/.tmp_neon4.o lib/raid6/neon4.c
lib/raid6/neon4.c: In function ‘raid6_neon4_gen_syndrome_real’:
lib/raid6/neon4.c:119:1: internal compiler error: in dwarf2out_frame_debug_adjust_cfa, at dwarf2cfi.c:1078
}
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.launchpad.net/gcc-linaro> for instructions.
scripts/Makefile.build:328: recipe for target 'lib/raid6/neon4.o' failed
make[2]: *** [lib/raid6/neon4.o] Error 1
scripts/Makefile.build:587: recipe for target 'lib/raid6' failed
make[1]: *** [lib/raid6] Error 2
Makefile:1034: recipe for target 'lib' failed
make: *** [lib] Error 2
