Messages in this thread | | | Date | Tue, 22 Aug 2006 10:11:53 +0200 | From | "Jan Beulich" <> | Subject | Re: 2.6.18-rc4-mm2: x86_64 compile error |
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>>> Adrian Bunk <bunk@stusta.de> 21.08.06 23:21 >>> >On Sat, Aug 19, 2006 at 10:00:08PM -0700, Andrew Morton wrote: >>... >> Changes since 2.6.18-rc4-mm1: >>... >> +x86_64-mm-fix-x86-cpuid-keys-used-in-alternative_smp.patch >>... >> x86_64 tree updates >>... > >This patch causes the following compile error (cross compiling from i386 >using gcc 4.1): > ><-- snip --> > >... > LD .tmp_vmlinux1 >kernel/built-in.o:(.smp_altinstructions+0x10): undefined reference to `X86_FEATURE_UP' >kernel/built-in.o:(.smp_altinstructions+0x28): undefined reference to `X86_FEATURE_UP' >kernel/built-in.o:(.smp_altinstructions+0x40): undefined reference to `X86_FEATURE_UP' >kernel/built-in.o:(.smp_altinstructions+0x58): undefined reference to `X86_FEATURE_UP' >make[1]: *** [.tmp_vmlinux1] Error 1
Odd - asm/cpufeature.h is being included by asm/processor.h, which is included by linux/sched.h, which in turn I would have assumed is included by virtually everything. The simply solution would be to explicitly include it from asm/alternative.h - could you give that a try? Regardless of that I'd be curious what source file under kernel/ (and perhaps with what .config) neither includes linux/sched.h nor asm/processor.h.
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