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tools lib traceevent: Add tep_load_plugins_hook() API 

Add the API function tep_load_plugins_hook() to the traceevent API to
allow tools a common method to load in the plugins that are part of the
lib traceevent library.

Link: http://lore.kernel.org/linux-trace-devel/20190802110101.14759-4-tz.stoyanov@gmail.com
Link: http://lore.kernel.org/linux-trace-devel/20200625100516.365338-4-tz.stoyanov@gmail.com

Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/lkml/20200702185703.946652691@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Tzvetomir Stoyanov (VMware) 2020-07-02 14:53:47 -04:00 committed by Arnaldo Carvalho de Melo
parent 1f16fcad68
commit 662081acfa
2 changed files with 15 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
tools/lib/traceevent/event-parse.h
View File

@ -396,6 +396,12 @@ struct tep_plugin_list;
struct tep_plugin_list *tep_load_plugins(struct tep_handle *tep);
void tep_unload_plugins(struct tep_plugin_list *plugin_list,
struct tep_handle *tep);
void tep_load_plugins_hook(struct tep_handle *tep, const char *suffix,
void (*load_plugin)(struct tep_handle *tep,
const char *path,
const char *name,
void *data),
void *data);
char **tep_plugin_list_options(void);
void tep_plugin_free_options_list(char **list);
int tep_plugin_add_options(const char *name,

19
tools/lib/traceevent/event-plugin.c
View File

@ -365,20 +365,19 @@ load_plugins_dir(struct tep_handle *tep, const char *suffix,
closedir(dir);
}
static void
load_plugins(struct tep_handle *tep, const char *suffix,
void (*load_plugin)(struct tep_handle *tep,
const char *path,
const char *name,
void *data),
void *data)
void tep_load_plugins_hook(struct tep_handle *tep, const char *suffix,
void (*load_plugin)(struct tep_handle *tep,
const char *path,
const char *name,
void *data),
void *data)
{
char *home;
char *path;
char *envdir;
int ret;
if (tep->flags & TEP_DISABLE_PLUGINS)
if (tep && tep->flags & TEP_DISABLE_PLUGINS)
return;
/*
@ -386,7 +385,7 @@ load_plugins(struct tep_handle *tep, const char *suffix,
* check that first.
*/
#ifdef PLUGIN_DIR
if (!(tep->flags & TEP_DISABLE_SYS_PLUGINS))
if (!tep || !(tep->flags & TEP_DISABLE_SYS_PLUGINS))
load_plugins_dir(tep, suffix, PLUGIN_DIR,
load_plugin, data);
#endif
@ -423,7 +422,7 @@ tep_load_plugins(struct tep_handle *tep)
{
struct tep_plugin_list *list = NULL;
load_plugins(tep, ".so", load_plugin, &list);
tep_load_plugins_hook(tep, ".so", load_plugin, &list);
return list;
}