Commit a4455e00 authored by Adrian Hunter's avatar Adrian Hunter Committed by Arnaldo Carvalho de Melo
Browse files

perf data: Add has_kcore_dir() 



Add a helper function has_kcore_dir(), so that perf inject can determine if
it needs to keep the kcore_dir.

Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220520132404.25853-5-adrian.hunter@intel.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 180b3d06

tools/perf/util/data.c

+14 −0
Original line number Diff line number Diff line
@@ -479,6 +479,20 @@ int perf_data__make_kcore_dir(struct perf_data *data, char *buf, size_t buf_sz) 
	return mkdir(buf, S_IRWXU);

}



bool has_kcore_dir(const char *path)

{

	char *kcore_dir;

	int ret;



	if (asprintf(&kcore_dir, "%s/kcore_dir", path) < 0)

		return false;



	ret = access(kcore_dir, F_OK);



	free(kcore_dir);

	return !ret;

}



char *perf_data__kallsyms_name(struct perf_data *data)

{

	char *kallsyms_name;

tools/perf/util/data.h

+1 −0
Original line number Diff line number Diff line
@@ -99,6 +99,7 @@ void perf_data__close_dir(struct perf_data *data); 
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);

bool has_kcore_dir(const char *path);

char *perf_data__kallsyms_name(struct perf_data *data);

bool is_perf_data(const char *path);

#endif /* __PERF_DATA_H */