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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Mark Rutland <mark.rutland@arm.com>, Jiri Olsa <jolsa@redhat.com>,
	linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org
Subject: Re: [PATCH 19/20] perf test: bpf: free obj_buf
Date: Fri, 16 Jul 2021 13:50:12 -0300	[thread overview]
Message-ID: <YPG4xEmVVZetIem9@kernel.org> (raw)
In-Reply-To: <60f3ca935fe6672e7e866276ce6264c9e26e4c87.1626343282.git.rickyman7@gmail.com>

Em Thu, Jul 15, 2021 at 06:07:24PM +0200, Riccardo Mancini escreveu:
> ASan reports some memory leaks when running the perf test
> "42: BPF filter".
> The first of these leaks is caused by obj_buf never being deallocated in
> __test__bpf.
> 
> This patch adds the missing free.
> 
> Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
> ---
>  tools/perf/tests/bpf.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/tools/perf/tests/bpf.c b/tools/perf/tests/bpf.c
> index 33bda9c265423547..2cda4a6297e07967 100644
> --- a/tools/perf/tests/bpf.c
> +++ b/tools/perf/tests/bpf.c
> @@ -276,6 +276,7 @@ static int __test__bpf(int idx)
>  	}
>  
>  out:
> +	free(obj_buf);
>  	bpf__clear();
>  	return ret;
>  }
> -- 

I followed the advice and added the stdlib.h include, elsewhere we're
getting included via some other include by luck.

- Arnaldo

  66     6.97 ubuntu:18.04-x-m68k           : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
    tests/bpf.c: In function '__test__bpf':
    tests/bpf.c:279:2: error: implicit declaration of function 'free' [-Werror=implicit-function-declaration]
      free(obj_buf);
      ^~~~
    tests/bpf.c:279:2: error: incompatible implicit declaration of built-in function 'free' [-Werror]
    tests/bpf.c:279:2: note: include '<stdlib.h>' or provide a declaration of 'free'
    cc1: all warnings being treated as errors
    /git/perf-5.14.0-rc1/tools/build/Makefile.build:139: recipe for target 'tests' failed
    make[3]: *** [tests] Error 2


  parent reply	other threads:[~2021-07-16 16:50 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-15 16:07 [PATCH 00/20] perf: fix several memory leaks reported by ASan on perf-test Riccardo Mancini
2021-07-15 16:07 ` [PATCH 01/20] perf nsinfo: fix refcounting Riccardo Mancini
2021-07-15 19:02   ` Arnaldo Carvalho de Melo
2021-07-15 19:07     ` Arnaldo Carvalho de Melo
2021-07-15 19:20     ` Arnaldo Carvalho de Melo
2021-07-15 19:44     ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 02/20] perf env: fix sibling_dies memory leak Riccardo Mancini
2021-07-15 19:49   ` Arnaldo Carvalho de Melo
2021-07-16 13:13     ` Riccardo Mancini
2021-07-15 16:07 ` [PATCH 03/20] perf test: session_topology: delete session->evlist Riccardo Mancini
2021-07-15 19:51   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 04/20] perf test: event_update: fix memory leak of evlist Riccardo Mancini
2021-07-15 19:54   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 05/20] perf test: event_update: fix memory leak of unit Riccardo Mancini
2021-07-15 19:58   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 06/20] perf dso: fix memory leak in dso__new_map Riccardo Mancini
2021-07-15 20:01   ` Arnaldo Carvalho de Melo
2021-07-15 20:07   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 07/20] perf test: maps__merge_in: fix memory leak of maps Riccardo Mancini
2021-07-15 20:10   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 08/20] perf env: fix memory leak of cpu_pmu_caps Riccardo Mancini
2021-07-15 20:12   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 09/20] perf report: free generated help strings for sort option Riccardo Mancini
2021-07-15 20:15   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 10/20] perf inject: close inject.output Riccardo Mancini
2021-07-15 20:17   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 11/20] perf session: cleanup trace_event Riccardo Mancini
2021-07-15 20:21   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 12/20] perf script: release zstd data Riccardo Mancini
2021-07-15 20:23   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 13/20] perf script: fix memory leaks in perf_script Riccardo Mancini
2021-07-15 20:25   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 14/20] perf util/lzma: close lzma stream Riccardo Mancini
2021-07-15 20:31   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 15/20] perf trace: free malloc'd trace fields on exit Riccardo Mancini
2021-07-15 20:32   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 16/20] perf trace: free syscall->arg_fmt Riccardo Mancini
2021-07-15 20:35   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 17/20] perf trace: free syscall tp fields in evsel->priv Riccardo Mancini
2021-07-15 20:35   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 18/20] perf trace: free strings in trace__parse_events_option Riccardo Mancini
2021-07-15 20:36   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 19/20] perf test: bpf: free obj_buf Riccardo Mancini
2021-07-15 20:39   ` Arnaldo Carvalho de Melo
2021-07-16 16:50   ` Arnaldo Carvalho de Melo [this message]
2021-07-15 16:07 ` [PATCH 20/20] perf util/probe-file: delete namelist on error in del_events Riccardo Mancini
2021-07-15 20:41   ` Arnaldo Carvalho de Melo

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