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authorLinus Torvalds <torvalds@linux-foundation.org>2008-06-12 07:56:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-06-12 07:56:39 -0700
commit95dcf8350dc889e735d03c0debe2f7b26d243185 (patch)
tree1b995b7cbd1c42e340da7913f72eceedf3edf056
parent5a1603be58f11edb1b30cb1e40cfbdd4439289d0 (diff)
parent4d7365d664e79710ac0e782a23443471ddf05bdd (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes: kbuild: ignore powerpc specific symbols in modpost
-rw-r--r--scripts/mod/modpost.c25
1 files changed, 20 insertions, 5 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 508c5895c68..a07f91aac92 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -467,6 +467,25 @@ static void parse_elf_finish(struct elf_info *info)
release_file(info->hdr, info->size);
}
+static int ignore_undef_symbol(struct elf_info *info, const char *symname)
+{
+ /* ignore __this_module, it will be resolved shortly */
+ if (strcmp(symname, MODULE_SYMBOL_PREFIX "__this_module") == 0)
+ return 1;
+ /* ignore global offset table */
+ if (strcmp(symname, "_GLOBAL_OFFSET_TABLE_") == 0)
+ return 1;
+ if (info->hdr->e_machine == EM_PPC)
+ /* Special register function linked on all modules during final link of .ko */
+ if (strncmp(symname, "_restgpr_", sizeof("_restgpr_") - 1) == 0 ||
+ strncmp(symname, "_savegpr_", sizeof("_savegpr_") - 1) == 0 ||
+ strncmp(symname, "_rest32gpr_", sizeof("_rest32gpr_") - 1) == 0 ||
+ strncmp(symname, "_save32gpr_", sizeof("_save32gpr_") - 1) == 0)
+ return 1;
+ /* Do not ignore this symbol */
+ return 0;
+}
+
#define CRC_PFX MODULE_SYMBOL_PREFIX "__crc_"
#define KSYMTAB_PFX MODULE_SYMBOL_PREFIX "__ksymtab_"
@@ -493,11 +512,7 @@ static void handle_modversions(struct module *mod, struct elf_info *info,
if (ELF_ST_BIND(sym->st_info) != STB_GLOBAL &&
ELF_ST_BIND(sym->st_info) != STB_WEAK)
break;
- /* ignore global offset table */
- if (strcmp(symname, "_GLOBAL_OFFSET_TABLE_") == 0)
- break;
- /* ignore __this_module, it will be resolved shortly */
- if (strcmp(symname, MODULE_SYMBOL_PREFIX "__this_module") == 0)
+ if (ignore_undef_symbol(info, symname))
break;
/* cope with newer glibc (2.3.4 or higher) STT_ definition in elf.h */
#if defined(STT_REGISTER) || defined(STT_SPARC_REGISTER)