From mboxrd@z Thu Jan 1 00:00:00 1970 From: huawei.libin@huawei.com (Li Bin) Date: Fri, 30 Oct 2015 16:31:02 +0800 Subject: [PATCH 1/3] recordmcount: fix endianness handling bug for nop_mcount In-Reply-To: <1446193864-24593-1-git-send-email-huawei.libin@huawei.com> References: <1446193864-24593-1-git-send-email-huawei.libin@huawei.com> Message-ID: <1446193864-24593-2-git-send-email-huawei.libin@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 | 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