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scripts/mod/modpost.c: handle non ABS crc symbols

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For some reason I managed to trick gcc into create CRC symbols that are
not absolute anymore, but weak.

Make modpost handle this case.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andi Kleen
2013-11-12 15:08:38 -08:00
committed by Linus Torvalds
parent 83460ec8dc
commit b5064654c5
1 changed files with 7 additions and 8 deletions
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9
scripts/mod/modpost.c
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@@ -599,17 +599,16 @@ static void handle_modversions(struct module *mod, struct elf_info *info,
else else
export = export_from_sec(info, get_secindex(info, sym)); export = export_from_sec(info, get_secindex(info, sym));
switch (sym->st_shndx) {
case SHN_COMMON:
warn("\"%s\" [%s] is COMMON symbol\n", symname, mod->name);
break;
case SHN_ABS:
/* CRC'd symbol */ /* CRC'd symbol */
if (strncmp(symname, CRC_PFX, strlen(CRC_PFX)) == 0) { if (strncmp(symname, CRC_PFX, strlen(CRC_PFX)) == 0) {
crc = (unsigned int) sym->st_value; crc = (unsigned int) sym->st_value;
sym_update_crc(symname + strlen(CRC_PFX), mod, crc, sym_update_crc(symname + strlen(CRC_PFX), mod, crc,
export); export);
} }
switch (sym->st_shndx) {
case SHN_COMMON:
warn("\"%s\" [%s] is COMMON symbol\n", symname, mod->name);
break; break;
case SHN_UNDEF: case SHN_UNDEF:
/* undefined symbol */ /* undefined symbol */