#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/zalloc.h>
+#include <linux/err.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
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);
+ struct dirent *d = ERR_PTR(-EINVAL);
+ const char *name = "kcore_dir";
+ DIR *dir = opendir(path);
+ size_t n = strlen(name);
+ bool result = false;
+
+ if (dir) {
+ while (d && !result) {
+ d = readdir(dir);
+ result = d ? strncmp(d->d_name, name, n) : false;
+ }
+ closedir(dir);
+ }
- free(kcore_dir);
- return !ret;
+ return result;
}
char *perf_data__kallsyms_name(struct perf_data *data)