mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-29 05:44:11 +00:00
Code Issues Releases Wiki Activity

perf data: Add is_perf_data function

Browse source 
Adding is_perf_data function that returns true if the given path is perf
data file. It will be used in following patches.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20201126170026.2619053-21-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2020-11-26 18:00:21 +01:00 committed by Arnaldo Carvalho de Melo
parent ca8ea73ae1
commit 058f151130
2 changed files with 20 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
tools/perf/util/data.c
View file

@ -492,3 +492,22 @@ char *perf_data__kallsyms_name(struct perf_data *data)
return kallsyms_name;
}
bool is_perf_data(const char *path)
{
bool ret = false;
FILE *file;
u64 magic;
file = fopen(path, "r");
if (!file)
return false;
if (fread(&magic, 1, 8, file) < 8)
goto out;
ret = is_perf_magic(magic);
out:
fclose(file);
return ret;
}

1
tools/perf/util/data.h
View file

@ -98,4 +98,5 @@ int perf_data__update_dir(struct perf_data *data);
unsigned long perf_data__size(struct perf_data *data);
int perf_data__make_kcore_dir(struct perf_data *data, char *buf, size_t buf_sz);
char *perf_data__kallsyms_name(struct perf_data *data);
bool is_perf_data(const char *path);
#endif /* __PERF_DATA_H */