Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit dd6dda27 authored by Steven Rostedt (Red Hat)'s avatar Steven Rostedt (Red Hat) Committed by Arnaldo Carvalho de Melo
Browse files

tools lib api fs: Add {tracefs,debugfs}_configured() functions 



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: default avatarSteven Rostedt <rostedt@goodmis.org>
Acked-by: default avatarJiri 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent a9edf607

tools/lib/api/fs/debugfs.c

+8 −0
Original line number Original line Diff line number Diff line
@@ -3,8 +3,11 @@ 
#include <stdio.h>

#include <stdio.h>

#include <stdlib.h>

#include <stdlib.h>

#include <string.h>

#include <string.h>

#include <unistd.h>

#include <stdbool.h>

#include <stdbool.h>

#include <sys/vfs.h>

#include <sys/vfs.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <sys/mount.h>

#include <sys/mount.h>

#include <linux/kernel.h>

#include <linux/kernel.h>
@@ -24,6 +27,11 @@ static const char * const debugfs_known_mountpoints[] = { 




static bool debugfs_found;

static bool debugfs_found;





bool debugfs_configured(void)

{

	return debugfs_find_mountpoint() != NULL;

}



/* find the path to the mounted debugfs */

/* find the path to the mounted debugfs */

const char *debugfs_find_mountpoint(void)

const char *debugfs_find_mountpoint(void)

{

{

tools/lib/api/fs/debugfs.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -11,6 +11,7 @@ 
#define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR"

#define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR"

#endif

#endif





bool debugfs_configured(void);

const char *debugfs_find_mountpoint(void);

const char *debugfs_find_mountpoint(void);

char *debugfs_mount(const char *mountpoint);

char *debugfs_mount(const char *mountpoint);

tools/lib/api/fs/findfs.h

+2 −0
Original line number Original line Diff line number Diff line 
#ifndef __API_FINDFS_H__

#ifndef __API_FINDFS_H__

#define __API_FINDFS_H__

#define __API_FINDFS_H__





#include <stdbool.h>



#define _STR(x) #x

#define _STR(x) #x

#define STR(x) _STR(x)

#define STR(x) _STR(x)

tools/lib/api/fs/tracefs.c

+8 −0
Original line number Original line Diff line number Diff line
@@ -2,8 +2,11 @@ 
#include <stdio.h>

#include <stdio.h>

#include <stdlib.h>

#include <stdlib.h>

#include <string.h>

#include <string.h>

#include <unistd.h>

#include <stdbool.h>

#include <stdbool.h>

#include <sys/vfs.h>

#include <sys/vfs.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <sys/mount.h>

#include <sys/mount.h>

#include <linux/kernel.h>

#include <linux/kernel.h>
@@ -25,6 +28,11 @@ static const char * const tracefs_known_mountpoints[] = { 




static bool tracefs_found;

static bool tracefs_found;





bool tracefs_configured(void)

{

	return tracefs_find_mountpoint() != NULL;

}



/* find the path to the mounted tracefs */

/* find the path to the mounted tracefs */

const char *tracefs_find_mountpoint(void)

const char *tracefs_find_mountpoint(void)

{

{

tools/lib/api/fs/tracefs.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -11,6 +11,7 @@ 
#define PERF_TRACEFS_ENVIRONMENT "PERF_TRACEFS_DIR"

#define PERF_TRACEFS_ENVIRONMENT "PERF_TRACEFS_DIR"

#endif

#endif





bool tracefs_configured(void);

const char *tracefs_find_mountpoint(void);

const char *tracefs_find_mountpoint(void);

int tracefs_valid_mountpoint(const char *debugfs);

int tracefs_valid_mountpoint(const char *debugfs);

char *tracefs_mount(const char *mountpoint);

char *tracefs_mount(const char *mountpoint);