linux-kernel - Re: [PATCH 01/12] perf test: Shell - Limit to only run executable scripts in tests

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Date:   Wed, 15 Dec 2021 13:27:53 +0000
From:   James Clark <james.clark@....com>
To:     carsten.haitzler@...s.arm.com
Cc:     coresight@...ts.linaro.org, mike.leach@...aro.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 01/12] perf test: Shell - Limit to only run executable
 scripts in tests



On 15/12/2021 12:53, carsten.haitzler@...s.arm.com wrote:
> From: Carsten Haitzler <carsten.haitzler@....com>
> 
> Perf test's shell runner will just run everything in the tests
> directory (as long as it's not another directory or does not begin
> with a dot), but sometimes you find files in there that are not shell
> scripts - perf.data output for example if you do some testing and then
> the next time you run perf test it tries to run these. Check the files
> are executable so they are actually intended to be test scripts and
> not just some "random junk" files there.
> 

Hi Carsten,

Because these apply to tools/perf files rather than the coresight drivers
they will need to apply to Arnaldo's perf/core branch. At the moment I'm
getting merge conflicts so I can't test and review them.

I also think you would have to do to: linux-perf-users@...r.kernel.org and acme@...nel.org

James

> Signed-off-by: Carsten Haitzler <carsten.haitzler@....com>
> ---
>  tools/perf/tests/builtin-test.c |  2 +-
>  tools/perf/util/path.c          | 12 ++++++++++++
>  tools/perf/util/path.h          |  1 +
>  3 files changed, 14 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
> index c4b888f18e9c..1a7e21e5acf1 100644
> --- a/tools/perf/tests/builtin-test.c
> +++ b/tools/perf/tests/builtin-test.c
> @@ -512,7 +512,7 @@ static const char *shell_test__description(char *description, size_t size,
>  
>  #define for_each_shell_test(dir, base, ent)	\
>  	while ((ent = readdir(dir)) != NULL)	\
> -		if (!is_directory(base, ent) && ent->d_name[0] != '.')
> +		if (!is_directory(base, ent) && is_executable_file(base, ent) && ent->d_name[0] != '.')
>  
>  static const char *shell_tests__dir(char *path, size_t size)
>  {
> diff --git a/tools/perf/util/path.c b/tools/perf/util/path.c
> index caed0336429f..7dde8c230ae8 100644
> --- a/tools/perf/util/path.c
> +++ b/tools/perf/util/path.c
> @@ -92,3 +92,15 @@ bool is_directory(const char *base_path, const struct dirent *dent)
>  
>  	return S_ISDIR(st.st_mode);
>  }
> +
> +bool is_executable_file(const char *base_path, const struct dirent *dent)
> +{
> +	char path[PATH_MAX];
> +	struct stat st;
> +
> +	sprintf(path, "%s/%s", base_path, dent->d_name);
> +	if (stat(path, &st))
> +		return false;
> +
> +	return !S_ISDIR(st.st_mode) && (st.st_mode & S_IXUSR);
> +}
> diff --git a/tools/perf/util/path.h b/tools/perf/util/path.h
> index 083429b7efa3..d94902c22222 100644
> --- a/tools/perf/util/path.h
> +++ b/tools/perf/util/path.h
> @@ -12,5 +12,6 @@ int path__join3(char *bf, size_t size, const char *path1, const char *path2, con
>  
>  bool is_regular_file(const char *file);
>  bool is_directory(const char *base_path, const struct dirent *dent);
> +bool is_executable_file(const char *base_path, const struct dirent *dent);
>  
>  #endif /* _PERF_PATH_H */
>