Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754416AbdC1F7k (ORCPT ); Tue, 28 Mar 2017 01:59:40 -0400 Received: from terminus.zytor.com ([65.50.211.136]:41611 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754367AbdC1F7j (ORCPT ); Tue, 28 Mar 2017 01:59:39 -0400 Date: Mon, 27 Mar 2017 22:56:23 -0700 From: tip-bot for Tommi Rantala Message-ID: Cc: tommi.t.rantala@nokia.com, peterz@infradead.org, acme@redhat.com, alexander.shishkin@linux.intel.com, tglx@linutronix.de, linux-kernel@vger.kernel.org, mingo@kernel.org, hpa@zytor.com Reply-To: linux-kernel@vger.kernel.org, tglx@linutronix.de, alexander.shishkin@linux.intel.com, hpa@zytor.com, mingo@kernel.org, peterz@infradead.org, tommi.t.rantala@nokia.com, acme@redhat.com In-Reply-To: <20170322130624.21881-2-tommi.t.rantala@nokia.com> References: <20170322130624.21881-2-tommi.t.rantala@nokia.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf buildid: Do not update SDT cache with null filename Git-Commit-ID: 2ccc220238680642be87a2d010ce07f1c40edafb X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2954 Lines: 60 Commit-ID: 2ccc220238680642be87a2d010ce07f1c40edafb Gitweb: http://git.kernel.org/tip/2ccc220238680642be87a2d010ce07f1c40edafb Author: Tommi Rantala AuthorDate: Wed, 22 Mar 2017 15:06:19 +0200 Committer: Arnaldo Carvalho de Melo CommitDate: Mon, 27 Mar 2017 15:33:36 -0300 perf buildid: Do not update SDT cache with null filename Valgrind was complaining: ==2633== Syscall param open(filename) points to unaddressable byte(s) ==2633== at 0x5281CC0: __open_nocancel (syscall-template.S:84) ==2633== by 0x537D38: open (fcntl2.h:53) ==2633== by 0x537D38: get_sdt_note_list (symbol-elf.c:2017) ==2633== by 0x5396FD: probe_cache__scan_sdt (probe-file.c:700) ==2633== by 0x49EA2C: build_id_cache__add_sdt_cache (build-id.c:625) ==2633== by 0x49EA2C: build_id_cache__add_s (build-id.c:697) ==2633== by 0x49EE72: build_id_cache__add_b (build-id.c:717) ==2633== by 0x49EE72: dso__cache_build_id (build-id.c:782) ==2633== by 0x49F190: __dsos__cache_build_ids (build-id.c:793) ==2633== by 0x49F190: machine__cache_build_ids (build-id.c:801) ==2633== by 0x49F190: perf_session__cache_build_ids (build-id.c:815) ==2633== by 0x4CD4F2: write_build_id (header.c:165) ==2633== by 0x4D26F7: do_write_feat (header.c:2296) ==2633== by 0x4D26F7: perf_header__adds_write (header.c:2335) ==2633== by 0x4D26F7: perf_session__write_header (header.c:2414) ==2633== by 0x43B324: __cmd_record (builtin-record.c:1154) ==2633== by 0x43B324: cmd_record (builtin-record.c:1839) ==2633== by 0x455A07: __cmd_record (builtin-kmem.c:1868) ==2633== by 0x455A07: cmd_kmem (builtin-kmem.c:1944) ==2633== by 0x497150: run_builtin (perf.c:359) ==2633== by 0x428CE0: handle_internal_command (perf.c:421) ==2633== by 0x428CE0: run_argv (perf.c:467) ==2633== by 0x428CE0: main (perf.c:614) ==2633== Address 0x0 is not stack'd, malloc'd or (recently) free'd Signed-off-by: Tommi Rantala Cc: Alexander Shishkin Cc: Peter Zijlstra Cc: Tommi Rantala Link: http://lkml.kernel.org/r/20170322130624.21881-2-tommi.t.rantala@nokia.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/build-id.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c index e528c40..234859f 100644 --- a/tools/perf/util/build-id.c +++ b/tools/perf/util/build-id.c @@ -690,7 +690,7 @@ int build_id_cache__add_s(const char *sbuild_id, const char *name, err = 0; /* Update SDT cache : error is just warned */ - if (build_id_cache__add_sdt_cache(sbuild_id, realname) < 0) + if (realname && build_id_cache__add_sdt_cache(sbuild_id, realname) < 0) pr_debug4("Failed to update/scan SDT cache for %s\n", realname); out_free: