diff options
Diffstat (limited to 'tools/lib/api/fs/debugfs.c')
-rw-r--r-- | tools/lib/api/fs/debugfs.c | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c deleted file mode 100644 index c707cfb32782..000000000000 --- a/tools/lib/api/fs/debugfs.c +++ /dev/null @@ -1,77 +0,0 @@ -#define _GNU_SOURCE -#include <errno.h> -#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> - -#include "debugfs.h" -#include "tracefs.h" - -#ifndef DEBUGFS_DEFAULT_PATH -#define DEBUGFS_DEFAULT_PATH "/sys/kernel/debug" -#endif - -char debugfs_mountpoint[PATH_MAX + 1] = DEBUGFS_DEFAULT_PATH; - -static const char * const debugfs_known_mountpoints[] = { - DEBUGFS_DEFAULT_PATH, - "/debug", - 0, -}; - -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) -{ - const char *ret; - - if (debugfs_found) - return (const char *)debugfs_mountpoint; - - ret = find_mountpoint("debugfs", (long) DEBUGFS_MAGIC, - debugfs_mountpoint, PATH_MAX + 1, - debugfs_known_mountpoints); - if (ret) - debugfs_found = true; - - return ret; -} - -/* mount the debugfs somewhere if it's not mounted */ -char *debugfs_mount(const char *mountpoint) -{ - /* see if it's already mounted */ - if (debugfs_find_mountpoint()) - goto out; - - /* if not mounted and no argument */ - if (mountpoint == NULL) { - /* see if environment variable set */ - mountpoint = getenv(PERF_DEBUGFS_ENVIRONMENT); - /* if no environment variable, use default */ - if (mountpoint == NULL) - mountpoint = DEBUGFS_DEFAULT_PATH; - } - - if (mount(NULL, mountpoint, "debugfs", 0, NULL) < 0) - return NULL; - - /* save the mountpoint */ - debugfs_found = true; - strncpy(debugfs_mountpoint, mountpoint, sizeof(debugfs_mountpoint)); -out: - return debugfs_mountpoint; -} |