From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030548AbbKDPbZ (ORCPT ); Wed, 4 Nov 2015 10:31:25 -0500 Received: from mail.kernel.org ([198.145.29.136]:37705 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932854AbbKDPaU (ORCPT ); Wed, 4 Nov 2015 10:30:20 -0500 Message-Id: <20151104153011.311151264@goodmis.org> User-Agent: quilt/0.61-1 Date: Wed, 04 Nov 2015 10:29:36 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , , Li Bin Subject: [for-next][PATCH 02/13] recordmcount: Fix endianness handling bug for nop_mcount References: <20151104152934.825847519@goodmis.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Disposition: inline; filename=0002-recordmcount-Fix-endianness-handling-bug-for-nop_mco.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: libin 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: # 3.0+ Signed-off-by: Li Bin Signed-off-by: Steven Rostedt --- 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