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authorTom Zanussi <tzanussi@gmail.com>2009-12-15 02:53:35 -0600
committerIngo Molnar <mingo@elte.hu>2009-12-15 10:31:31 +0100
commit586bc5cce88be993dad584c3936c49f945368551 (patch)
treef335951b59c1106918ced48a6e1242e131808225 /tools/perf/util
parentc249a4ce796b30b742bb4854bf3039ced12ef8e5 (diff)
perf trace/scripting: Add support for script args
One oversight of the original scripting_ops patch was a lack of support for passing args to handler scripts. This adds argc/argv to the start_script() scripting_op, and changes the rw-by-file script to take 'comm' arg rather than the 'perf' value currently hard-coded. It also takes the opportunity to do some related minor cleanup. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org LKML-Reference: <1260867220-15699-2-git-send-email-tzanussi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/trace-event-perl.c36
-rw-r--r--tools/perf/util/trace-event.h2
2 files changed, 27 insertions, 11 deletions
diff --git a/tools/perf/util/trace-event-perl.c b/tools/perf/util/trace-event-perl.c
index a5ffe60db5d..6f10e760245 100644
--- a/tools/perf/util/trace-event-perl.c
+++ b/tools/perf/util/trace-event-perl.c
@@ -267,7 +267,7 @@ int common_lock_depth(struct scripting_context *context)
}
static void perl_process_event(int cpu, void *data,
- int size __attribute((unused)),
+ int size __unused,
unsigned long long nsecs, char *comm)
{
struct format_field *field;
@@ -359,28 +359,42 @@ static void run_start_sub(void)
/*
* Start trace script
*/
-static int perl_start_script(const char *script)
+static int perl_start_script(const char *script, int argc, const char **argv)
{
- const char *command_line[2] = { "", NULL };
+ const char **command_line;
+ int i, err = 0;
+ command_line = malloc((argc + 2) * sizeof(const char *));
+ command_line[0] = "";
command_line[1] = script;
+ for (i = 2; i < argc + 2; i++)
+ command_line[i] = argv[i - 2];
my_perl = perl_alloc();
perl_construct(my_perl);
- if (perl_parse(my_perl, xs_init, 2, (char **)command_line,
- (char **)NULL))
- return -1;
+ if (perl_parse(my_perl, xs_init, argc + 2, (char **)command_line,
+ (char **)NULL)) {
+ err = -1;
+ goto error;
+ }
perl_run(my_perl);
- if (SvTRUE(ERRSV))
- return -1;
+ if (SvTRUE(ERRSV)) {
+ err = -1;
+ goto error;
+ }
run_start_sub();
+ free(command_line);
fprintf(stderr, "perf trace started with Perl script %s\n\n", script);
-
return 0;
+error:
+ perl_free(my_perl);
+ free(command_line);
+
+ return err;
}
/*
@@ -579,7 +593,9 @@ static void print_unsupported_msg(void)
"\n etc.\n");
}
-static int perl_start_script_unsupported(const char *script __unused)
+static int perl_start_script_unsupported(const char *script __unused,
+ int argc __unused,
+ const char **argv __unused)
{
print_unsupported_msg();
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index 81698d5e650..6ad405620c9 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -270,7 +270,7 @@ enum trace_flag_type {
struct scripting_ops {
const char *name;
- int (*start_script) (const char *);
+ int (*start_script) (const char *script, int argc, const char **argv);
int (*stop_script) (void);
void (*process_event) (int cpu, void *data, int size,
unsigned long long nsecs, char *comm);