From mboxrd@z Thu Jan 1 00:00:00 1970 From: huawei.libin@huawei.com (libin) Date: Tue, 3 Nov 2015 08:58:47 +0800 Subject: [PATCH] recordmcount: fix endianness handling bug for nop_mcount In-Reply-To: <20151102143324.071eee7e@gandalf.local.home> References: <1446193864-24593-1-git-send-email-huawei.libin@huawei.com> <1446193864-24593-2-git-send-email-huawei.libin@huawei.com> <56338025.3060602@cogentembedded.com> <5634226A.9060208@huawei.com> <20151102143324.071eee7e@gandalf.local.home> Message-ID: <563806C7.7070606@huawei.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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: # 3.0+ Signed-off-by: Li Bin --- scripts/recordmcount.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) 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 @@ 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); -- 1.7.1