From: libin Date: Tue, 3 Nov 2015 00:58:47 +0000 (+0800) Subject: recordmcount: Fix endianness handling bug for nop_mcount X-Git-Tag: v3.2.74~24 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b8120dbc56a7ecc9e4b664d860011877bdce985;p=pandora-kernel.git recordmcount: Fix endianness handling bug for nop_mcount commit c84da8b9ad3761eef43811181c7e896e9834b26b upstream. 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 Signed-off-by: Li Bin Signed-off-by: Steven Rostedt Signed-off-by: Ben Hutchings --- diff --git a/scripts/recordmcount.h b/scripts/recordmcount.h index 5e29610303b0..799d73483fb2 100644 --- a/scripts/recordmcount.h +++ b/scripts/recordmcount.h @@ -375,7 +375,7 @@ 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);