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authorBorislav Petkov <bp@suse.de>2013-02-20 16:32:30 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-03-15 13:06:00 -0300
commit85c66be101e1847f0eb46dcb48d5738572129694 (patch)
tree96900665b0edb1466da7b82bd7ca619858f4ba4d /tools/lib/lk/debugfs.h
parent9687b89d21999301ed386855c04b60d00ed1ec02 (diff)
downloadvexpress-lsk-85c66be101e1847f0eb46dcb48d5738572129694.tar.gz
perf tools: Introduce tools/lib/lk library
This introduces the tools/lib/lk library, that will gradually have the routines that now are used in tools/perf/ and other tools and that can be shared. Start by carving out debugfs routines for general use. Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1361374353-30385-5-git-send-email-bp@alien8.de [ committer note: Add tools/lib/lk/ to perf's MANIFEST so that its tarballs continue to build ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/lk/debugfs.h')
-rw-r--r--tools/lib/lk/debugfs.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/tools/lib/lk/debugfs.h b/tools/lib/lk/debugfs.h
new file mode 100644
index 00000000000..bc5ad2df7c0
--- /dev/null
+++ b/tools/lib/lk/debugfs.h
@@ -0,0 +1,31 @@
+#ifndef __LK_DEBUGFS_H__
+#define __LK_DEBUGFS_H__
+
+#define _STR(x) #x
+#define STR(x) _STR(x)
+
+/*
+ * On most systems <limits.h> would have given us this, but not on some systems
+ * (e.g. GNU/Hurd).
+ */
+#ifndef PATH_MAX
+#define PATH_MAX 4096
+#endif
+
+#ifndef DEBUGFS_MAGIC
+#define DEBUGFS_MAGIC 0x64626720
+#endif
+
+#ifndef PERF_DEBUGFS_ENVIRONMENT
+#define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR"
+#endif
+
+const char *debugfs_find_mountpoint(void);
+int debugfs_valid_mountpoint(const char *debugfs);
+char *debugfs_mount(const char *mountpoint);
+void debugfs_set_path(const char *mountpoint);
+
+extern char debugfs_mountpoint[];
+extern char tracing_events_path[];
+
+#endif /* __LK_DEBUGFS_H__ */