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authorArnaldo Carvalho de Melo <acme@redhat.com>2011-11-16 14:03:07 -0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-11-28 10:11:28 -0200
commitebf294bf4f147aff29df5a16bfb0f8ebca15feaa (patch)
tree37464624abf9243100eab47fdc663def4be121fe /tools/perf/builtin-test.c
parentc168fbfb93a1c4044287858c6784f0bd1f6cfe33 (diff)
downloadop-kernel-dev-ebf294bf4f147aff29df5a16bfb0f8ebca15feaa.zip
op-kernel-dev-ebf294bf4f147aff29df5a16bfb0f8ebca15feaa.tar.gz
perf tools: Simplify debugfs mountpoint handling code
We don't need to have two PATH_MAX char sized arrays holding it, just one in util/debugfs.c will do. Also rename debugfs_path to tracing_events_path, as it is not the path to debugfs, that is debugfs_mountpoint. Both are now accessible. This will allow accessing this code in the perf python binding without having to drag in perf.c and util/parse-events.c. The defaults for these variables are the canonical "/sys/kernel/debug" and "/sys/kernel/debug/tracing/events/", removing the need for simple tools to call debugfs_mount(NULL). Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ug9jvtjrsqbluuhqqxpvg30f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-test.c')
-rw-r--r--tools/perf/builtin-test.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c
index 831d1ba..77d68bf 100644
--- a/tools/perf/builtin-test.c
+++ b/tools/perf/builtin-test.c
@@ -7,6 +7,7 @@
#include "util/cache.h"
#include "util/debug.h"
+#include "util/debugfs.h"
#include "util/evlist.h"
#include "util/parse-options.h"
#include "util/parse-events.h"
@@ -247,7 +248,7 @@ static int trace_event__id(const char *evname)
if (asprintf(&filename,
"%s/syscalls/%s/id",
- debugfs_path, evname) < 0)
+ tracing_events_path, evname) < 0)
return -1;
fd = open(filename, O_RDONLY);
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