From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755245Ab1DRPwK (ORCPT ); Mon, 18 Apr 2011 11:52:10 -0400 Received: from hera.kernel.org ([140.211.167.34]:60331 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754442Ab1DRPwB (ORCPT ); Mon, 18 Apr 2011 11:52:01 -0400 Date: Mon, 18 Apr 2011 15:51:51 GMT From: tip-bot for Lin Ming Message-ID: Cc: acme@redhat.com, linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com, ming.m.lin@intel.com, tglx@linutronix.de Reply-To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, acme@redhat.com, ming.m.lin@intel.com, tglx@linutronix.de In-Reply-To: <1302244286.4106.36.camel@minggr.sh.intel.com> References: <1302244286.4106.36.camel@minggr.sh.intel.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/urgent] perf hists browser: Fix seg fault when annotate null symbol Git-Commit-ID: db9a9cbc8142eed008e242e389938689c6feb1ba X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Mon, 18 Apr 2011 15:51:52 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: db9a9cbc8142eed008e242e389938689c6feb1ba Gitweb: http://git.kernel.org/tip/db9a9cbc8142eed008e242e389938689c6feb1ba Author: Lin Ming AuthorDate: Fri, 8 Apr 2011 14:31:26 +0800 Committer: Arnaldo Carvalho de Melo CommitDate: Fri, 15 Apr 2011 12:51:49 -0300 perf hists browser: Fix seg fault when annotate null symbol In hists browser, press hotkey 'a' to annotate current symbol. Now it causes segment fault if 'a' is pressed on a null symbol. Here are 2 small bugs: - In perf_evsel__hists_browse, the condition check after 'a' is pressed is not correct, we should check ->sym instead of ->map. - In symbol__tui_annotate we must check whether sym is NULL or not before getting annotation structure. This patch fixes above 2 small bugs. Link: http://lkml.kernel.org/r/1302244286.4106.36.camel@minggr.sh.intel.com Signed-off-by: Lin Ming Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/ui/browsers/annotate.c | 6 ++++-- tools/perf/util/ui/browsers/hists.c | 2 +- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/ui/browsers/annotate.c b/tools/perf/util/ui/browsers/annotate.c index 8c17a87..15633d6 100644 --- a/tools/perf/util/ui/browsers/annotate.c +++ b/tools/perf/util/ui/browsers/annotate.c @@ -256,10 +256,9 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx, int refresh) { struct objdump_line *pos, *n; - struct annotation *notes = symbol__annotation(sym); + struct annotation *notes; struct annotate_browser browser = { .b = { - .entries = ¬es->src->source, .refresh = ui_browser__list_head_refresh, .seek = ui_browser__list_head_seek, .write = annotate_browser__write, @@ -281,6 +280,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx, ui_helpline__push("Press <- or ESC to exit"); + notes = symbol__annotation(sym); + list_for_each_entry(pos, ¬es->src->source, node) { struct objdump_line_rb_node *rbpos; size_t line_len = strlen(pos->line); @@ -291,6 +292,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx, rbpos->idx = browser.b.nr_entries++; } + browser.b.entries = ¬es->src->source, browser.b.width += 18; /* Percentage */ ret = annotate_browser__run(&browser, evidx, refresh); list_for_each_entry_safe(pos, n, ¬es->src->source, node) { diff --git a/tools/perf/util/ui/browsers/hists.c b/tools/perf/util/ui/browsers/hists.c index 798efdc..5d767c6 100644 --- a/tools/perf/util/ui/browsers/hists.c +++ b/tools/perf/util/ui/browsers/hists.c @@ -851,7 +851,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, goto out_free_stack; case 'a': if (browser->selection == NULL || - browser->selection->map == NULL || + browser->selection->sym == NULL || browser->selection->map->dso->annotate_warned) continue; goto do_annotate;