Commit-ID: c495afb4988dcbb8bae11b8f1bbb7e11f172672b
Gitweb: http://git.kernel.org/tip/c495afb4988dcbb8bae11b8f1bbb7e11f172672b
Author: Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Wed, 2 Sep 2015 09:56:40 +0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 4 Sep 2015 12:01:00 -0300
tools lib api fs: Add tracefs into fs.c object
Adding tracefs support into fs.c framework. It'll replace the tracefs
object functionality in following patches.
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Raphael Beamonte <raphael.beamonte@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1441180605-24737-11-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/lib/api/fs/fs.c | 28 ++++++++++++++++++++++++++++
tools/lib/api/fs/fs.h | 1 +
2 files changed, 29 insertions(+)
diff --git a/tools/lib/api/fs/fs.c b/tools/lib/api/fs/fs.c
index 798052c..ef16d2a 100644
--- a/tools/lib/api/fs/fs.c
+++ b/tools/lib/api/fs/fs.c
@@ -28,6 +28,10 @@
#define DEBUGFS_MAGIC 0x64626720
#endif
+#ifndef TRACEFS_MAGIC
+#define TRACEFS_MAGIC 0x74726163
+#endif
+
static const char * const sysfs__fs_known_mountpoints[] = {
"/sys",
0,
@@ -48,6 +52,19 @@ static const char * const debugfs__known_mountpoints[] = {
0,
};
+
+#ifndef TRACEFS_DEFAULT_PATH
+#define TRACEFS_DEFAULT_PATH "/sys/kernel/tracing"
+#endif
+
+static const char * const tracefs__known_mountpoints[] = {
+ TRACEFS_DEFAULT_PATH,
+ "/sys/kernel/debug/tracing",
+ "/tracing",
+ "/trace",
+ 0,
+};
+
struct fs {
const char *name;
const char * const *mounts;
@@ -60,8 +77,13 @@ enum {
FS__SYSFS = 0,
FS__PROCFS = 1,
FS__DEBUGFS = 2,
+ FS__TRACEFS = 3,
};
+#ifndef TRACEFS_MAGIC
+#define TRACEFS_MAGIC 0x74726163
+#endif
+
static struct fs fs__entries[] = {
[FS__SYSFS] = {
.name = "sysfs",
@@ -78,6 +100,11 @@ static struct fs fs__entries[] = {
.mounts = debugfs__known_mountpoints,
.magic = DEBUGFS_MAGIC,
},
+ [FS__TRACEFS] = {
+ .name = "tracefs",
+ .mounts = tracefs__known_mountpoints,
+ .magic = TRACEFS_MAGIC,
+ },
};
static bool fs__read_mounts(struct fs *fs)
@@ -197,6 +224,7 @@ const char *name##__mountpoint(void) \
FS__MOUNTPOINT(sysfs, FS__SYSFS);
FS__MOUNTPOINT(procfs, FS__PROCFS);
FS__MOUNTPOINT(debugfs, FS__DEBUGFS);
+FS__MOUNTPOINT(tracefs, FS__TRACEFS);
int filename__read_int(const char *filename, int *value)
{
diff --git a/tools/lib/api/fs/fs.h b/tools/lib/api/fs/fs.h
index a4e6b1d..9013227 100644
--- a/tools/lib/api/fs/fs.h
+++ b/tools/lib/api/fs/fs.h
@@ -12,6 +12,7 @@
const char *sysfs__mountpoint(void);
const char *procfs__mountpoint(void);
const char *debugfs__mountpoint(void);
+const char *tracefs__mountpoint(void);
int filename__read_int(const char *filename, int *value);
int sysctl__read_int(const char *sysctl, int *value);
--
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