From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751750AbaDRKVN (ORCPT ); Fri, 18 Apr 2014 06:21:13 -0400 Received: from mx1.redhat.com ([209.132.183.28]:49749 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750949AbaDRKVJ (ORCPT ); Fri, 18 Apr 2014 06:21:09 -0400 From: Jiri Olsa To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Vladimir Nikulichev , Jiri Olsa Subject: [PATCH 2/3] perf tools: Adjust symbols in VDSO Date: Fri, 18 Apr 2014 12:20:42 +0200 Message-Id: <1397816443-14630-3-git-send-email-jolsa@redhat.com> In-Reply-To: <1397816443-14630-1-git-send-email-jolsa@redhat.com> References: <1397816443-14630-1-git-send-email-jolsa@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Vladimir Nikulichev pert-report doesn't resolve function names in VDSO: $ perf report --stdio -g flat,0.0,15,callee --sort pid ... 8.76% 0x7fff6b1fe861 __gettimeofday ACE_OS::gettimeofday() ... In this case symbol values should be adjusted the same way as for executables, relocatable objects and prelinked libraries. After fix: $ perf report --stdio -g flat,0.0,15,callee --sort pid ... 8.76% __vdso_gettimeofday __gettimeofday ACE_OS::gettimeofday() Signed-off-by: Vladimir Nikulichev Tested-by: Namhyung Kim Reviewed-by: Adrian Hunter Link: http://lkml.kernel.org/r/969812.163009436-sendEmail@nvs Signed-off-by: Jiri Olsa --- tools/perf/util/symbol-elf.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c index 3b7dbf5..6864661 100644 --- a/tools/perf/util/symbol-elf.c +++ b/tools/perf/util/symbol-elf.c @@ -6,6 +6,7 @@ #include #include "symbol.h" +#include "vdso.h" #include #include "debug.h" @@ -618,6 +619,7 @@ int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name, GElf_Shdr shdr; ss->adjust_symbols = (ehdr.e_type == ET_EXEC || ehdr.e_type == ET_REL || + is_vdso_map(dso->short_name) || elf_section_by_name(elf, &ehdr, &shdr, ".gnu.prelink_undo", NULL) != NULL); -- 1.8.3.1