[for-next][PATCH 02/13] recordmcount: Fix endianness handling bug for nop_mcount

[Steven Rostedt]

From: libin <huawei.libin@xxxxxxxxxx>

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@xxxxxxxxxx

Cc: <stable@xxxxxxxxxxxxxxx> # 3.0+
Signed-off-by: Li Bin <huawei.libin@xxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
 scripts/recordmcount.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/recordmcount.h b/scripts/recordmcount.h
index 49b582a225b0..b9897e2be404 100644
--- a/scripts/recordmcount.h
+++ b/scripts/recordmcount.h
@@ -377,7 +377,7 @@ static void nop_mcount(Elf_Shdr const *const relhdr,
 
 		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);
-- 
2.6.1


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