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powerpc: Fix module building for gcc 4.5 and 64 bit

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Gcc 4.5 is now generating out of line register save and restore
in the function prefix and postfix when we use -Os.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Stephen Rothwell
2010-06-29 20:08:42 +00:00
committed by Benjamin Herrenschmidt
parent 219a92a4c4
commit 7fca5dc8aa
4 changed files with 138 additions and 4 deletions
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5
scripts/mod/modpost.c
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@@ -503,6 +503,11 @@ static int ignore_undef_symbol(struct elf_info *info, const char *symname)
strncmp(symname, "_rest32gpr_", sizeof("_rest32gpr_") - 1) == 0 ||
strncmp(symname, "_save32gpr_", sizeof("_save32gpr_") - 1) == 0)
return 1;
if (info->hdr->e_machine == EM_PPC64)
/* Special register function linked on all modules during final link of .ko */
if (strncmp(symname, "_restgpr0_", sizeof("_restgpr0_") - 1) == 0 ||
strncmp(symname, "_savegpr0_", sizeof("_savegpr0_") - 1) == 0)
return 1;
/* Do not ignore this symbol */
return 0;
}