tools lib api debugfs: Add DEBUGFS_DEFAULT_PATH macro

Instead of hard coding "/sys/kernel/debug" everywhere, create a macro to
hold where the default path exists.

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/20150202193553.032117017@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c
index 91e1668..07d74b0 100644 (file)
--- a/tools/lib/api/fs/debugfs.c
+++ b/tools/lib/api/fs/debugfs.c
@@ -10,10 +10,14 @@
 
 #include "debugfs.h"
 
-char debugfs_mountpoint[PATH_MAX + 1] = "/sys/kernel/debug";
+#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[] = {
-       "/sys/kernel/debug",
+       DEBUGFS_DEFAULT_PATH,
        "/debug",
        0,
 };
@@ -50,7 +54,7 @@ char *debugfs_mount(const char *mountpoint)
                mountpoint = getenv(PERF_DEBUGFS_ENVIRONMENT);
                /* if no environment variable, use default */
                if (mountpoint == NULL)
-                       mountpoint = "/sys/kernel/debug";
+                       mountpoint = DEBUGFS_DEFAULT_PATH;
        }
 
        if (mount(NULL, mountpoint, "debugfs", 0, NULL) < 0)