From: "Steven Rostedt (VMware)" <rostedt@xxxxxxxxxxx>
Instead of reading the available_filter_functions file and parsing it
manually, simply call tarcefs_filter_functions() and report what it wrote
as it does the work for us.
Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
---
tracecmd/trace-list.c | 25 ++++++++++++-------------
1 file changed, 12 insertions(+), 13 deletions(-)
diff --git a/tracecmd/trace-list.c b/tracecmd/trace-list.c
index fbf2882e1a83..0fbb8eabd44b 100644
--- a/tracecmd/trace-list.c
+++ b/tracecmd/trace-list.c
@@ -236,16 +236,6 @@ static void process_events(process_file_func func, const char *re, int flags)
regfree(&event_reg);
}
-static int show_file_write(char *buf, int len, int flags)
-{
- return fwrite(buf, 1, len, stdout);
-}
-
-static void show_file_re(const char *name, const char *re)
-{
- process_file_re(show_file_write, name, re, 0);
-}
-
static char *get_event_file(const char *type, char *buf, int len)
{
char *system;
@@ -476,10 +466,19 @@ static void show_clocks(void)
static void show_functions(const char *funcre)
{
- if (funcre)
- show_file_re("available_filter_functions", funcre);
- else
+ char **list;
+ int i;
+
+ if (!funcre) {
show_file("available_filter_functions");
+ return;
+ }
+
+ if (tracefs_filter_functions(funcre, NULL, &list) < 0)
+ die("Failed to read filte functions");
+ for (i = 0; list[i]; i++)
+ printf("%s\n", list[i]);
+ tracefs_list_free(list);
}
--
2.45.2
|