Re: [PATCH 2.4.34-pre1] fix x86_64 etc build failure due to memchr change
From: Mikael Pettersson
Date: Sun Aug 20 2006 - 06:22:25 EST
On Sun, 20 Aug 2006 03:31:09 +0200, Willy Tarreau wrote:
>On Sun, Aug 20, 2006 at 12:19:06AM +0200, Mikael Pettersson wrote:
>> 2.4.34-pre1 doesn't build on x86_64:
>> kernel/kernel.o(__ksymtab+0x1c10): multiple definition of `__ksymtab_memchr'
>> arch/x86_64/kernel/kernel.o(__ksymtab+0x3f0): first defined here
>> kernel/kernel.o(.kstrtab+0x3960): multiple definition of `__kstrtab_memchr'
>> arch/x86_64/kernel/kernel.o(.kstrtab+0x5fd): first defined here
>> ld: Warning: size of symbol `__kstrtab_memchr' changed from 7 in arch/x86_64/kernel/kernel.o to 17 in kernel/kernel.o
>> make: *** [vmlinux] Error 1
>> This is because the 'export memchr() which is used by smbfs and lp driver'
>> change in 2.4.34-pre1 added an EXPORT_SYMBOL of memchr to kernel/ksyms.c
>> without also removing the existing one in arch/x86_64/kernel/x8664_ksyms.c.
>> Alpha, ARM, ppc32, and SH also have EXPORTs of memchr so they probably
>> also broke.
>> This patch removes the EXPORTs of memchr under arch/, which fixes x86_64
>> and should fix the other architectures as well.
>I have fixed sparc and sparc64 instead, and it's OK now without having to
>export memchr() in kernel/ksyms.c. So the fix is shorter and more logical.
>It brings non-sparc architectures to their state before my wrong fix. However,
>sparc needs to export memchr() for smbfs and lp.
Works for me. Tested on i386, x86_64, and ppc32. I'll try to test on sparc64
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