Messages in this thread | | | Date | Tue, 06 Nov 2007 19:09:40 +0530 | From | Balbir Singh <> | Subject | Re: 2.6.24-rc1-git15 Kernel build fails on powerpc - Unrecognized opcode: `dssall' |
| |
Kamalesh Babulal wrote: > David Miller wrote: >> From: Johannes Berg <johannes@sipsolutions.net> >> Date: Tue, 06 Nov 2007 11:54:46 +0100 >> >>>>> CHK include/linux/compile.h >>>>> AS arch/powerpc/kernel/swsusp_32.o >>>>> arch/powerpc/kernel/swsusp_32.S: Assembler messages: >>>>> arch/powerpc/kernel/swsusp_32.S:138: Error: Unrecognized opcode: `dssall' >>>>> make[1]: *** [arch/powerpc/kernel/swsusp_32.o] Error 1 >>>>> make: *** [arch/powerpc/kernel] Error 2 >>>>> >>>> Looks suspiciously like an altivec issue. Could you compile with make >>>> V=1 and/or do a git bisect and see what broke? >>> Looks more like a toolchain issue to me. >> Or, this is another instance of the "CFLAGS environment variable" >> problem. >> >> For a few days, the kbuild stuff would integrate any CFLAGS, >> AFLAGS, etc. settings you might have set in your environment. > > Hi Balbir, > > The Build error of kernel compilation with V=1 > > make -f scripts/Makefile.build obj=arch/powerpc/kernel > make -f scripts/Makefile.build obj=arch/powerpc/kernel/vdso32 > gcc -m32 -Wp,-MD,arch/powerpc/kernel/.swsusp_32.o.d -nostdinc -isystem /usr/lib/gcc/ppc64-redhat-linux/4.1.2/include -D__KERNEL__ -Iinclude -include include/linux/autoconf.h -Iarch/powerpc -D__ASSEMBLY__ -Iarch/powerpc -Wa,-m405 -gdwarf-2 -c -o arch/powerpc/kernel/swsusp_32.o arch/powerpc/kernel/swsusp_32.S > arch/powerpc/kernel/swsusp_32.S: Assembler messages: > arch/powerpc/kernel/swsusp_32.S:138: Error: Unrecognized opcode: `dssall' > make[1]: *** [arch/powerpc/kernel/swsusp_32.o] Error 1 > make: *** [arch/powerpc/kernel] Error 2 >
I looked at your .config and now your build. It looks like you select CONFIG_4xx (I see -Wa,-m405) and compile swsusp_32.S. The compiler/toolchain does not enable altivec instructions for CONFIG_4xx. If CONFIG_HIBERNATION is enabled as in your case, it compiles swsusp_32.S which assumes that ALTIVEC is enabled (see CPU_FTR_ALTIVEC).
You ideally need to have -Wa,-maltivec passed in your CFLAGS.
-- Warm Regards, Balbir Singh Linux Technology Center IBM, ISTL - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |