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

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Message-ID: <bc3ead54-032a-efc7-49d4-91702daf4d64@foss.arm.com>
Date:   Wed, 15 Dec 2021 16:00:43 +0000
From:   Carsten Haitzler <carsten.haitzler@...s.arm.com>
To:     James Clark <james.clark@....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 12/15/21 13:27, James Clark wrote:
> 
> 
> 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

I will send updated versions of the series and include the above - 
though perf-users does describe itself for users and not development, 
thus I skipped it. I should get the full list then of everyone

> 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 */
>>