perf/scripts: Add Python scripting engine
Add base support for Python scripting to perf trace.
Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Keiichi KII <k-keiichi@bx.jp.nec.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1264580883-15324-6-git-send-email-tzanussi@gmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c
index 9e37196..7ea983a 100644
--- a/tools/perf/util/trace-event-scripting.c
+++ b/tools/perf/util/trace-event-scripting.c
@@ -44,6 +44,67 @@
{
}
+static void print_python_unsupported_msg(void)
+{
+ fprintf(stderr, "Python scripting not supported."
+ " Install libpython and rebuild perf to enable it.\n"
+ "For example:\n # apt-get install python-dev (ubuntu)"
+ "\n # yum install python-devel (Fedora)"
+ "\n etc.\n");
+}
+
+static int python_start_script_unsupported(const char *script __unused,
+ int argc __unused,
+ const char **argv __unused)
+{
+ print_python_unsupported_msg();
+
+ return -1;
+}
+
+static int python_generate_script_unsupported(const char *outfile __unused)
+{
+ print_python_unsupported_msg();
+
+ return -1;
+}
+
+struct scripting_ops python_scripting_unsupported_ops = {
+ .name = "Python",
+ .start_script = python_start_script_unsupported,
+ .stop_script = stop_script_unsupported,
+ .process_event = process_event_unsupported,
+ .generate_script = python_generate_script_unsupported,
+};
+
+static void register_python_scripting(struct scripting_ops *scripting_ops)
+{
+ int err;
+ err = script_spec_register("Python", scripting_ops);
+ if (err)
+ die("error registering Python script extension");
+
+ err = script_spec_register("py", scripting_ops);
+ if (err)
+ die("error registering py script extension");
+
+ scripting_context = malloc(sizeof(struct scripting_context));
+}
+
+#ifdef NO_LIBPYTHON
+void setup_python_scripting(void)
+{
+ register_python_scripting(&python_scripting_unsupported_ops);
+}
+#else
+struct scripting_ops python_scripting_ops;
+
+void setup_python_scripting(void)
+{
+ register_python_scripting(&python_scripting_ops);
+}
+#endif
+
static void print_perl_unsupported_msg(void)
{
fprintf(stderr, "Perl scripting not supported."