Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756469Ab2KIVno (ORCPT ); Fri, 9 Nov 2012 16:43:44 -0500 Received: from merlin.infradead.org ([205.233.59.134]:48165 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756205Ab2KIVn1 (ORCPT ); Fri, 9 Nov 2012 16:43:27 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Namhyung Kim , Namhyung Kim , Andi Kleen , Paul Mackerras , Peter Zijlstra , Stephane Eranian , Arnaldo Carvalho de Melo Subject: [PATCH 02/21] perf tools: Fix detection of stack area Date: Fri, 9 Nov 2012 18:42:51 -0300 Message-Id: <1352497390-17716-3-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.7.9.2.358.g22243 In-Reply-To: <1352497390-17716-1-git-send-email-acme@infradead.org> References: <1352497390-17716-1-git-send-email-acme@infradead.org> Content-Type: text/plain; charset="utf-8" X-SRS-Rewrite: SMTP reverse-path rewritten from by canuck.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2498 Lines: 57 From: Namhyung Kim Output of /proc//maps contains helpful information to anonymous mappings like stack, heap, ... For the case of stack, it can show multiple stack area for each thread in the process: $ cat /proc/$(pidof gnome-shell)/maps | grep stack 7fe019946000-7fe01a146000 rw-p 00000000 00:00 0 [stack:1624] 7fe040e32000-7fe041632000 rw-p 00000000 00:00 0 [stack:1451] 7fe041643000-7fe041e43000 rw-p 00000000 00:00 0 [stack:1450] 7fe04204b000-7fe04284b000 rw-p 00000000 00:00 0 [stack:1449] 7fe042a7e000-7fe04327e000 rw-p 00000000 00:00 0 [stack:1446] 7fe0432ff000-7fe043aff000 rw-p 00000000 00:00 0 [stack:1445] 7fe043b00000-7fe044300000 rw-p 00000000 00:00 0 [stack:1444] 7fe044301000-7fe044b01000 rw-p 00000000 00:00 0 [stack:1443] 7fe044b02000-7fe045302000 rw-p 00000000 00:00 0 [stack:1442] 7fe045303000-7fe045b03000 rw-p 00000000 00:00 0 [stack:1441] 7fe045b04000-7fe046304000 rw-p 00000000 00:00 0 [stack:1440] 7fe046305000-7fe046b05000 rw-p 00000000 00:00 0 [stack:1439] 7fe046b06000-7fe047306000 rw-p 00000000 00:00 0 [stack:1438] 7fff4b16f000-7fff4b190000 rw-p 00000000 00:00 0 [stack] However perf only knew about the main thread's. Fix it. Signed-off-by: Namhyung Kim Cc: Andi Kleen Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1352273234-28912-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/map.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index 9b40c44..5791878 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -24,7 +24,7 @@ static inline int is_anon_memory(const char *filename) static inline int is_no_dso_memory(const char *filename) { - return !strcmp(filename, "[stack]") || + return !strncmp(filename, "[stack", 6) || !strcmp(filename, "[heap]"); } -- 1.7.9.2.358.g22243 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/