From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Clark Williams <williams@redhat.com>,
Kate Carcia <kcarcia@redhat.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 3/6] perf trace: Register a thread priv destructor
Date: Wed, 19 Jul 2023 17:29:48 -0300 [thread overview]
Message-ID: <20230719202951.534582-4-acme@kernel.org> (raw)
In-Reply-To: <20230719202951.534582-1-acme@kernel.org>
From: Arnaldo Carvalho de Melo <acme@redhat.com>
To plug these leaks detected with:
$ make EXTRA_CFLAGS="-fsanitize=address" BUILD_BPF_SKEL=1 CORESIGHT=1 O=/tmp/build/perf-tools-next -C tools/perf install-bin
=================================================================
==473890==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 112 byte(s) in 1 object(s) allocated from:
#0 0x7fdf19aba097 in calloc (/lib64/libasan.so.8+0xba097)
#1 0x987836 in zalloc (/home/acme/bin/perf+0x987836)
#2 0x5367ae in thread_trace__new /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:1289
#3 0x5367ae in thread__trace /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:1307
#4 0x5367ae in trace__sys_exit /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:2468
#5 0x52bf34 in trace__handle_event /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:3177
#6 0x52bf34 in __trace__deliver_event /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:3685
#7 0x542927 in trace__deliver_event /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:3712
#8 0x542927 in trace__run /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:4055
#9 0x542927 in cmd_trace /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:5141
#10 0x5ef1a2 in run_builtin /home/acme/git/perf-tools-next/tools/perf/perf.c:323
#11 0x4196da in handle_internal_command /home/acme/git/perf-tools-next/tools/perf/perf.c:377
#12 0x4196da in run_argv /home/acme/git/perf-tools-next/tools/perf/perf.c:421
#13 0x4196da in main /home/acme/git/perf-tools-next/tools/perf/perf.c:537
#14 0x7fdf18a4a50f in __libc_start_call_main (/lib64/libc.so.6+0x2750f)
Direct leak of 2048 byte(s) in 1 object(s) allocated from:
#0 0x7f788fcba6af in __interceptor_malloc (/lib64/libasan.so.8+0xba6af)
#1 0x5337c0 in trace__sys_enter /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:2342
#2 0x52bfb4 in trace__handle_event /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:3191
#3 0x52bfb4 in __trace__deliver_event /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:3699
#4 0x542883 in trace__deliver_event /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:3726
#5 0x542883 in trace__run /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:4069
#6 0x542883 in cmd_trace /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:5155
#7 0x5ef232 in run_builtin /home/acme/git/perf-tools-next/tools/perf/perf.c:323
#8 0x4196da in handle_internal_command /home/acme/git/perf-tools-next/tools/perf/perf.c:377
#9 0x4196da in run_argv /home/acme/git/perf-tools-next/tools/perf/perf.c:421
#10 0x4196da in main /home/acme/git/perf-tools-next/tools/perf/perf.c:537
#11 0x7f788ec4a50f in __libc_start_call_main (/lib64/libc.so.6+0x2750f)
Indirect leak of 48 byte(s) in 1 object(s) allocated from:
#0 0x7fdf19aba6af in __interceptor_malloc (/lib64/libasan.so.8+0xba6af)
#1 0x77b335 in intlist__new util/intlist.c:116
#2 0x5367fd in thread_trace__new /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:1293
#3 0x5367fd in thread__trace /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:1307
#4 0x5367fd in trace__sys_exit /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:2468
#5 0x52bf34 in trace__handle_event /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:3177
#6 0x52bf34 in __trace__deliver_event /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:3685
#7 0x542927 in trace__deliver_event /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:3712
#8 0x542927 in trace__run /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:4055
#9 0x542927 in cmd_trace /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:5141
#10 0x5ef1a2 in run_builtin /home/acme/git/perf-tools-next/tools/perf/perf.c:323
#11 0x4196da in handle_internal_command /home/acme/git/perf-tools-next/tools/perf/perf.c:377
#12 0x4196da in run_argv /home/acme/git/perf-tools-next/tools/perf/perf.c:421
#13 0x4196da in main /home/acme/git/perf-tools-next/tools/perf/perf.c:537
#14 0x7fdf18a4a50f in __libc_start_call_main (/lib64/libc.so.6+0x2750f)
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-trace.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 6e73d0e957152d84..b7cbe4bcd136b137 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1296,6 +1296,19 @@ static struct thread_trace *thread_trace__new(void)
return ttrace;
}
+static void thread_trace__delete(void *pttrace)
+{
+ struct thread_trace *ttrace = pttrace;
+
+ if (!ttrace)
+ return;
+
+ intlist__delete(ttrace->syscall_stats);
+ ttrace->syscall_stats = NULL;
+ zfree(&ttrace->entry_str);
+ free(ttrace);
+}
+
static struct thread_trace *thread__trace(struct thread *thread, FILE *fp)
{
struct thread_trace *ttrace;
@@ -1635,6 +1648,8 @@ static int trace__symbols_init(struct trace *trace, struct evlist *evlist)
if (trace->host == NULL)
return -ENOMEM;
+ thread__set_priv_destructor(thread_trace__delete);
+
err = trace_event__register_resolver(trace->host, trace__machine__resolve_kernel_addr);
if (err < 0)
goto out;
--
2.41.0
next prev parent reply other threads:[~2023-07-19 20:31 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-19 20:29 [PATCHES 0/6] Fix some 'perf trace' leaks found with -fsanitize=address Arnaldo Carvalho de Melo
2023-07-19 20:29 ` [PATCH 1/6] perf evsel: Free evsel->filter on the destructor Arnaldo Carvalho de Melo
2023-07-19 20:29 ` [PATCH 2/6] perf thread: Allow tools to register a thread->priv destructor Arnaldo Carvalho de Melo
2023-07-19 22:31 ` Ian Rogers
2023-07-20 13:49 ` Arnaldo Carvalho de Melo
2023-07-19 20:29 ` Arnaldo Carvalho de Melo [this message]
2023-07-19 20:29 ` [PATCH 4/6] perf trace: Really free the evsel->priv area Arnaldo Carvalho de Melo
2023-07-19 20:29 ` [PATCH 5/6] perf trace: Free thread_trace->files table Arnaldo Carvalho de Melo
2023-07-19 20:29 ` [PATCH 6/6] MAINTAINERS: Add git information for perf-tools and perf-tools-next trees/branches Arnaldo Carvalho de Melo
2023-07-19 22:34 ` [PATCHES 0/6] Fix some 'perf trace' leaks found with -fsanitize=address Ian Rogers
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