From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752936AbaKKKGi (ORCPT ); Tue, 11 Nov 2014 05:06:38 -0500 Received: from mga01.intel.com ([192.55.52.88]:43773 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751422AbaKKKGh (ORCPT ); Tue, 11 Nov 2014 05:06:37 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,862,1389772800"; d="scan'208";a="414739709" From: Adrian Hunter To: Arnaldo Carvalho de Melo Cc: Peter Zijlstra , linux-kernel@vger.kernel.org, David Ahern , Frederic Weisbecker , Jiri Olsa , Namhyung Kim , Paul Mackerras , Stephane Eranian Subject: [PATCH] perf tools: Fix annotation with kcore Date: Tue, 11 Nov 2014 12:04:54 +0200 Message-Id: <1415700294-30816-1-git-send-email-adrian.hunter@intel.com> X-Mailer: git-send-email 1.9.1 Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Patch "perf tools: Fix build-id matching on vmlinux" breaks annotation with kcore. The problem is that symbol__annotate() first gets the filename based on the build-id which was previously not set. This patch provides a quick fix, however there should probably be only one way to determine the filename. e.g. symbol__annotate() should use the same way as dso__data_fd(). Signed-off-by: Adrian Hunter --- tools/perf/util/annotate.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 7dabde1..873c877 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -915,6 +915,8 @@ int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize) return -ENOMEM; } goto fallback; + } else if (dso__is_kcore(dso)) { + goto fallback; } else if (readlink(symfs_filename, command, sizeof(command)) < 0 || strstr(command, "[kernel.kallsyms]") || access(symfs_filename, R_OK)) { -- 1.9.1