1 files changed, 25 insertions, 71 deletions

diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index 3917eb9a8479..f3c9e551bd35 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -46,65 +46,6 @@
 static int output_fd;
 
 
-static const char *find_debugfs(void)
-{
-        const char *path = perf_debugfs_mount(NULL);
-
-        if (!path)
-                pr_debug("Your kernel does not support the debugfs filesystem");
-
-        return path;
-}
-
-/*
- * Finds the path to the debugfs/tracing
- * Allocates the string and stores it.
- */
-static const char *find_tracing_dir(void)
-{
-        static char *tracing;
-        static int tracing_found;
-        const char *debugfs;
-
-        if (tracing_found)
-                return tracing;
-
-        debugfs = find_debugfs();
-        if (!debugfs)
-                return NULL;
-
-        tracing = malloc(strlen(debugfs) + 9);
-        if (!tracing)
-                return NULL;
-
-        sprintf(tracing, "%s/tracing", debugfs);
-
-        tracing_found = 1;
-        return tracing;
-}
-
-static char *get_tracing_file(const char *name)
-{
-        const char *tracing;
-        char *file;
-
-        tracing = find_tracing_dir();
-        if (!tracing)
-                return NULL;
-
-        file = malloc(strlen(tracing) + strlen(name) + 2);
-        if (!file)
-                return NULL;
-
-        sprintf(file, "%s/%s", tracing, name);
-        return file;
-}
-
-static void put_tracing_file(char *file)
-{
-        free(file);
-}
-
 int bigendian(void)
 {
         unsigned char str[] = { 0x1, 0x2, 0x3, 0x4, 0x0, 0x0, 0x0, 0x0};
@@ -160,7 +101,7 @@ out:
         return err;
 }
 
-static int read_header_files(void)
+static int record_header_files(void)
 {
         char *path;
         struct stat st;
@@ -299,7 +240,7 @@ out:
         return err;
 }
 
-static int read_ftrace_files(struct tracepoint_path *tps)
+static int record_ftrace_files(struct tracepoint_path *tps)
 {
         char *path;
         int ret;
@@ -328,7 +269,7 @@ static bool system_in_tp_list(char *sys, struct tracepoint_path *tps)
         return false;
 }
 
-static int read_event_files(struct tracepoint_path *tps)
+static int record_event_files(struct tracepoint_path *tps)
 {
         struct dirent *dent;
         struct stat st;
@@ -403,7 +344,7 @@ out:
         return err;
 }
 
-static int read_proc_kallsyms(void)
+static int record_proc_kallsyms(void)
 {
         unsigned int size;
         const char *path = "/proc/kallsyms";
@@ -421,7 +362,7 @@ static int read_proc_kallsyms(void)
         return record_file(path, 4);
 }
 
-static int read_ftrace_printk(void)
+static int record_ftrace_printk(void)
 {
         unsigned int size;
         char *path;
@@ -473,12 +414,27 @@ get_tracepoints_path(struct list_head *pattrs)
                 if (pos->attr.type != PERF_TYPE_TRACEPOINT)
                         continue;
                 ++nr_tracepoints;
+
+                if (pos->name) {
+                        ppath->next = tracepoint_name_to_path(pos->name);
+                        if (ppath->next)
+                                goto next;
+
+                        if (strchr(pos->name, ':') == NULL)
+                                goto try_id;
+
+                        goto error;
+                }
+
+try_id:
                 ppath->next = tracepoint_id_to_path(pos->attr.config);
                 if (!ppath->next) {
+error:
                         pr_debug("No memory to alloc tracepoints list\n");
                         put_tracepoints_path(&path);
                         return NULL;
                 }
+next:
                 ppath = ppath->next;
         }
 
@@ -520,8 +476,6 @@ static int tracing_data_header(void)
         else
                 buf[0] = 0;
 
-        read_trace_init(buf[0], buf[0]);
-
         if (write(output_fd, buf, 1) != 1)
                 return -1;
 
@@ -583,19 +537,19 @@ struct tracing_data *tracing_data_get(struct list_head *pattrs,
         err = tracing_data_header();
         if (err)
                 goto out;
-        err = read_header_files();
+        err = record_header_files();
         if (err)
                 goto out;
-        err = read_ftrace_files(tps);
+        err = record_ftrace_files(tps);
         if (err)
                 goto out;
-        err = read_event_files(tps);
+        err = record_event_files(tps);
         if (err)
                 goto out;
-        err = read_proc_kallsyms();
+        err = record_proc_kallsyms();
         if (err)
                 goto out;
-        err = read_ftrace_printk();
+        err = record_ftrace_printk();
 
 out:
         /*