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fix 'dynreloc miscount' link error on Powerpc

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Nathan Lynch <ntl@pobox.com> reported:
2.6.23-rc1 breaks the build for 64-bit powerpc for me (using
maple_defconfig):

  LD      vmlinux.o
powerpc64-unknown-linux-gnu-ld: dynreloc miscount for
kernel/built-in.o, section .opd
powerpc64-unknown-linux-gnu-ld: can not edit opd Bad value
make: *** [vmlinux.o] Error 1

However, I see a possibly related binutils patch:
http://article.gmane.org/gmane.comp.gnu.binutils/33650

It was tracked down to be caused by the weak prototype
declaration in mm.h:
__attribute__((weak)) const char *arch_vma_name(struct vm_area_struct *vma);

But there is no need to make the declaration weak - only the definition
needs to be marked weak.  So drop the weak declaration.  And in the process
drop the duplicate definition in page.h for powerpc.

Note: the arch_vma_name fix for x86_64 needs to be applied first to avoid
breaking x86_64

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Nathan Lynch <ntl@pobox.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Sam Ravnborg 2007-07-26 10:41:13 -07:00 committed by Linus Torvalds
parent 2ebc3cc920
commit 045e72acf1
2 changed files with 1 additions and 2 deletions
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1
include/asm-powerpc/page.h
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@ -190,7 +190,6 @@ extern void copy_user_page(void *to, void *from, unsigned long vaddr,
extern int page_is_ram(unsigned long pfn);
struct vm_area_struct;
extern const char *arch_vma_name(struct vm_area_struct *vma);
#include <asm-generic/memory_model.h>
#endif /* __ASSEMBLY__ */

2
include/linux/mm.h
View File

@ -1246,7 +1246,7 @@ void drop_slab(void);
extern int randomize_va_space;
#endif
__attribute__((weak)) const char *arch_vma_name(struct vm_area_struct *vma);
const char * arch_vma_name(struct vm_area_struct *vma);
#endif /* __KERNEL__ */
#endif /* _LINUX_MM_H */