On Tue, Jun 21, 2011 at 4:31 PM, Amit Mahajan amit.mahajan@b-labs.com wrote:
Hi,
I am compiling 11.05 release linux kernel using linaro gcc-4.5.1.
Getting following errors:
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- -j 8 CHK include/linux/version.h CHK include/generated/utsrelease.h make[1]: `include/generated/mach-types.h' is up to date. CALL scripts/checksyscalls.sh CHK include/generated/compile.h Building modules, stage 2. Kernel: arch/arm/boot/Image is ready SHIPPED arch/arm/boot/compressed/lib1funcs.S AS arch/arm/boot/compressed/lib1funcs.o MODPOST 1736 modules LD arch/arm/boot/compressed/vmlinux OBJCOPY arch/arm/boot/zImage Kernel: arch/arm/boot/zImage is ready ERROR: "__aeabi_uldivmod" [sound/soc/codecs/snd-soc-wm8974.ko] undefined! ERROR: "__aeabi_uldivmod" [sound/soc/codecs/snd-soc-wm8940.ko] undefined! ERROR: "__aeabi_uldivmod" [sound/soc/codecs/snd-soc-wm8510.ko] undefined! WARNING: modpost: Found 2 section mismatch(es). To see full details build your kernel with: 'make CONFIG_DEBUG_SECTION_MISMATCH=y' make[1]: *** [__modpost] Error 1 make: *** [modules] Error 2
Division symbols seems missing.
Hi Amit. This is a known issue with the compiler. See LP: #771832 at: https://bugs.launchpad.net/gcc-linaro/+bug/771832
The problem exists in all 4.6 based compilers. The work around is to change the kernel configuration and disable Device Drivers -> Sound card support -> Advanced Linux Sound Architecture -> ALSA for SoC audio support -> Build all ASoC CODEC drivers.
-- Michael