In nop_mcount, shdr->sh_offset and welp->r_offset should handle
endianness properly, otherwise it will trigger Segmentation fault
if the recordmcount main and file.o have different endianness.
Cc: <sta...@vger.kernel.org> # 3.0+
Signed-off-by: Li Bin <huawei.li...@huawei.com>
---
scripts/recordmcount.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/scripts/recordmcount.h b/scripts/recordmcount.h
index 49b582a..dda9dba 100644
--- a/scripts/recordmcount.h
+++ b/scripts/recordmcount.h
@@ -376,8 +376,9 @@ static void nop_mcount(Elf_Shdr const *const relhdr,
mcountsym = get_mcountsym(sym0, relp, str0);
if (mcountsym == Elf_r_sym(relp) && !is_fake_mcount(relp)) {
- if (make_nop)
- ret = make_nop((void *)ehdr, shdr->sh_offset +
relp->r_offset);
+ if (make_nop) {
+ ret = make_nop((void *)ehdr,
_w(shdr->sh_offset) + _w(relp->r_offset));
+ }
if (warn_on_notrace_sect && !once) {
printf("Section %s has mcount callers being
ignored\n",
txtname);
--
1.7.12.4
--
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