diff options
Diffstat (limited to 'tools/lib/traceevent/event-plugin.c')
-rw-r--r-- | tools/lib/traceevent/event-plugin.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/tools/lib/traceevent/event-plugin.c b/tools/lib/traceevent/event-plugin.c index e8f4329ba8e0..1d4f1809cf17 100644 --- a/tools/lib/traceevent/event-plugin.c +++ b/tools/lib/traceevent/event-plugin.c @@ -39,6 +39,12 @@ struct tep_plugin_list { void *handle; }; +struct tep_plugins_dir { + struct tep_plugins_dir *next; + char *path; + enum tep_plugin_load_priority prio; +}; + static void lower_case(char *str) { if (!str) @@ -544,6 +550,7 @@ void tep_load_plugins_hook(struct tep_handle *tep, const char *suffix, void *data), void *data) { + struct tep_plugins_dir *dir = NULL; char *home; char *path; char *envdir; @@ -552,6 +559,15 @@ void tep_load_plugins_hook(struct tep_handle *tep, const char *suffix, if (tep && tep->flags & TEP_DISABLE_PLUGINS) return; + if (tep) + dir = tep->plugins_dir; + while (dir) { + if (dir->prio == TEP_PLUGIN_FIRST) + load_plugins_dir(tep, suffix, dir->path, + load_plugin, data); + dir = dir->next; + } + /* * If a system plugin directory was defined, * check that first. @@ -586,6 +602,15 @@ void tep_load_plugins_hook(struct tep_handle *tep, const char *suffix, load_plugins_dir(tep, suffix, path, load_plugin, data); + if (tep) + dir = tep->plugins_dir; + while (dir) { + if (dir->prio == TEP_PLUGIN_LAST) + load_plugins_dir(tep, suffix, dir->path, + load_plugin, data); + dir = dir->next; + } + free(path); } @@ -598,6 +623,51 @@ tep_load_plugins(struct tep_handle *tep) return list; } +/** + * tep_add_plugin_path - Add a new plugin directory. + * @tep: Trace event handler. + * @path: Path to a directory. All files with extension .so in that + * directory will be loaded as plugins. + *@prio: Load priority of the plugins in that directory. + * + * Returns -1 in case of an error, 0 otherwise. + */ +int tep_add_plugin_path(struct tep_handle *tep, char *path, + enum tep_plugin_load_priority prio) +{ + struct tep_plugins_dir *dir; + + if (!tep || !path) + return -1; + + dir = calloc(1, sizeof(*dir)); + if (!dir) + return -1; + + dir->path = strdup(path); + dir->prio = prio; + dir->next = tep->plugins_dir; + tep->plugins_dir = dir; + + return 0; +} + +void tep_free_plugin_paths(struct tep_handle *tep) +{ + struct tep_plugins_dir *dir; + + if (!tep) + return; + + dir = tep->plugins_dir; + while (dir) { + tep->plugins_dir = tep->plugins_dir->next; + free(dir->path); + free(dir); + dir = tep->plugins_dir; + } +} + void tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *tep) { |