diff options
Diffstat (limited to 'tools/perf/util/util.c')
| -rw-r--r-- | tools/perf/util/util.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index 805d1f52c5b..59d868add27 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -17,6 +17,8 @@ bool test_attr__enabled; bool perf_host = true; bool perf_guest = false; +char tracing_events_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing/events"; + void event_attr_init(struct perf_event_attr *attr) { if (!perf_host) @@ -242,3 +244,28 @@ void get_term_dimensions(struct winsize *ws) ws->ws_row = 25; ws->ws_col = 80; } + +static void set_tracing_events_path(const char *mountpoint) +{ + snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s", + mountpoint, "tracing/events"); +} + +const char *perf_debugfs_mount(const char *mountpoint) +{ + const char *mnt; + + mnt = debugfs_mount(mountpoint); + if (!mnt) + return NULL; + + set_tracing_events_path(mnt); + + return mnt; +} + +void perf_debugfs_set_path(const char *mntpt) +{ + snprintf(debugfs_mountpoint, strlen(debugfs_mountpoint), "%s", mntpt); + set_tracing_events_path(mntpt); +} |