recordmcount: Fix endianness handling bug for nop_mcount
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.
Link: http://lkml.kernel.org/r/563806C7.7070606@huawei.com
Cc: <stable@vger.kernel.org> # 3.0+
Signed-off-by: Li Bin <huawei.libin@huawei.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
diff --git a/scripts/recordmcount.h b/scripts/recordmcount.h
index 49b582a..b9897e2 100644
--- a/scripts/recordmcount.h
+++ b/scripts/recordmcount.h
@@ -377,7 +377,7 @@
if (mcountsym == Elf_r_sym(relp) && !is_fake_mcount(relp)) {
if (make_nop)
- ret = make_nop((void *)ehdr, shdr->sh_offset + relp->r_offset);
+ 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);