trace-cmd: Record the file name of plugins in plugin list

Keep the file name of plugins in the plugin list in case we need
to debug a plugin.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 13 insertions, 8 deletions

diff --git a/trace-util.c b/trace-util.c
index d6c1948..41c4f9b 100644
--- a/trace-util.c
+++ b/trace-util.c
@@ -26,6 +26,7 @@
 
 struct plugin_list {
         struct plugin_list      *next;
+        char                    *name;
         void                    *handle;
 };
 
@@ -175,25 +176,28 @@ load_plugin(struct pevent *pevent, struct plugin_list *plugin_list,
         if (!handle) {
                 warning("cound not load plugin '%s'\n%s\n",
                         plugin, dlerror());
-                goto out;
+                goto out_free;
         }
 
-        list = malloc_or_die(sizeof(*list));
-        list->next = plugin_list;
-        list->handle = handle;
-        plugin_list = list;
-
         func = dlsym(handle, PEVENT_PLUGIN_LOADER_NAME);
         if (!func) {
                 warning("cound not find func '%s' in plugin '%s'\n%s\n",
                         PEVENT_PLUGIN_LOADER_NAME, plugin, dlerror());
-                goto out;
+                goto out_free;
         }
 
+        list = malloc_or_die(sizeof(*list));
+        list->next = plugin_list;
+        list->handle = handle;
+        list->name = plugin;
+        plugin_list = list;
+
         printf("registering plugin: %s\n", plugin);
         ret = func(pevent);
 
- out:
+        return plugin_list;
+
+ out_free:
         free(plugin);
 
         return plugin_list;
@@ -315,6 +319,7 @@ void tracecmd_unload_plugins(struct plugin_list *plugin_list)
                 if (func)
                         func();
                 dlclose(list->handle);
+                free(list->name);
                 free(list);
         }
 }