Add tracefs_configured() to return true if tracefs is configured in the
kernel (succeeds to find tracefs), and debugfs_configured() if debugfs
is configured in the kernel (succeeds to find debugfs).
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20150202193553.190606690@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <unistd.h>
#include <stdbool.h>
#include <sys/vfs.h>
+#include <sys/types.h>
+#include <sys/stat.h>
#include <sys/mount.h>
#include <linux/kernel.h>
static bool debugfs_found;
+bool debugfs_configured(void)
+{
+ return debugfs_find_mountpoint() != NULL;
+}
+
/* find the path to the mounted debugfs */
const char *debugfs_find_mountpoint(void)
{
#define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR"
#endif
+bool debugfs_configured(void);
const char *debugfs_find_mountpoint(void);
char *debugfs_mount(const char *mountpoint);
#ifndef __API_FINDFS_H__
#define __API_FINDFS_H__
+#include <stdbool.h>
+
#define _STR(x) #x
#define STR(x) _STR(x)
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <unistd.h>
#include <stdbool.h>
#include <sys/vfs.h>
+#include <sys/types.h>
+#include <sys/stat.h>
#include <sys/mount.h>
#include <linux/kernel.h>
static bool tracefs_found;
+bool tracefs_configured(void)
+{
+ return tracefs_find_mountpoint() != NULL;
+}
+
/* find the path to the mounted tracefs */
const char *tracefs_find_mountpoint(void)
{
#define PERF_TRACEFS_ENVIRONMENT "PERF_TRACEFS_DIR"
#endif
+bool tracefs_configured(void);
const char *tracefs_find_mountpoint(void);
int tracefs_valid_mountpoint(const char *debugfs);
char *tracefs_mount(const char *mountpoint);