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Date:   Sun, 10 Apr 2022 09:24:10 +0800
From:   Leo Yan <leo.yan@linaro.org>
To:     carsten.haitzler@foss.arm.com
Cc:     linux-kernel@vger.kernel.org, coresight@lists.linaro.org,
        suzuki.poulose@arm.com, mathieu.poirier@linaro.org,
        mike.leach@linaro.org, linux-perf-users@vger.kernel.org,
        acme@kernel.org
Subject: Re: [PATCH 1/3] perf test: Shell - Limit to only run executable
 scripts in tests
Message-ID: <20220410012410.GA14326@leoy-ThinkPad-X240s>
References: <20220309122859.31487-1-carsten.haitzler@foss.arm.com>
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In-Reply-To: <20220309122859.31487-1-carsten.haitzler@foss.arm.com>
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On Wed, Mar 09, 2022 at 12:28:57PM +0000, carsten.haitzler@foss.arm.com wrote:
> From: Carsten Haitzler <carsten.haitzler@arm.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.
> 
> Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>

Reviewed-by: Leo Yan <leo.yan@linaro.org>

> ---
>  tools/perf/tests/builtin-test.c |  4 +++-
>  tools/perf/util/path.c          | 14 +++++++++++++-
>  tools/perf/util/path.h          |  1 +
>  3 files changed, 17 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
> index fac3717d9ba1..3c34cb766724 100644
> --- a/tools/perf/tests/builtin-test.c
> +++ b/tools/perf/tests/builtin-test.c
> @@ -296,7 +296,9 @@ static const char *shell_test__description(char *description, size_t size,
>  
>  #define for_each_shell_test(entlist, nr, base, ent)	                \
>  	for (int __i = 0; __i < nr && (ent = entlist[__i]); __i++)	\
> -		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..ce80b79be103 100644
> --- a/tools/perf/util/path.c
> +++ b/tools/perf/util/path.c
> @@ -86,9 +86,21 @@ bool is_directory(const char *base_path, const struct dirent *dent)
>  	char path[PATH_MAX];
>  	struct stat st;
>  
> -	sprintf(path, "%s/%s", base_path, dent->d_name);
> +	snprintf(path, sizeof(path), "%s/%s", base_path, dent->d_name);
>  	if (stat(path, &st))
>  		return false;
>  
>  	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;
> +
> +	snprintf(path, sizeof(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 */
> -- 
> 2.32.0
>