powerpc: Fix module building for gcc 4.5 and 64 bit
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>
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index f877900..f6127b9 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -503,6 +503,11 @@
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;
}