diff options
Diffstat (limited to 'scripts/tracetool/format/simpletrace_stap.py')
| -rw-r--r-- | scripts/tracetool/format/simpletrace_stap.py | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/scripts/tracetool/format/simpletrace_stap.py b/scripts/tracetool/format/simpletrace_stap.py index 7e44bc1811..ac3580fbcc 100644 --- a/scripts/tracetool/format/simpletrace_stap.py +++ b/scripts/tracetool/format/simpletrace_stap.py @@ -21,6 +21,25 @@ from tracetool.format.stap import stap_escape def generate(events, backend): out('/* This file is autogenerated by tracetool, do not edit. */', + '', + 'global event_name_to_id_map', + 'global event_next_id', + 'function simple_trace_map_event(name)', + '', + '{', + ' if (!([name] in event_name_to_id_map)) {', + ' event_name_to_id_map[name] = event_next_id', + ' name_len = strlen(name)', + ' printf("%%8b%%8b%%4b%%.*s", 0, ', + ' event_next_id, name_len, name_len, name)', + ' event_next_id = event_next_id + 1', + ' }', + ' return event_name_to_id_map[name]', + '}', + 'probe begin', + '{', + ' printf("%%8b%%8b%%8b", 0xffffffffffffffff, 0xf2b177cb0aa429b4, 4)', + '}', '') for event_id, e in enumerate(events): @@ -29,6 +48,7 @@ def generate(events, backend): out('probe %(probeprefix)s.simpletrace.%(name)s = %(probeprefix)s.%(name)s ?', '{', + ' id = simple_trace_map_event("%(name)s")', probeprefix=probeprefix(), name=e.name) @@ -48,7 +68,7 @@ def generate(events, backend): sizestr = ' + '.join(sizes) # Generate format string and value pairs for record header and arguments - fields = [('8b', str(event_id)), + fields = [('8b', 'id'), ('8b', 'gettimeofday_ns()'), ('4b', sizestr), ('4b', 'pid()')] @@ -63,7 +83,7 @@ def generate(events, backend): # Emit the entire record in a single SystemTap printf() fmt_str = '%'.join(fmt for fmt, _ in fields) arg_str = ', '.join(arg for _, arg in fields) - out(' printf("%%%(fmt_str)s", %(arg_str)s)', + out(' printf("%%8b%%%(fmt_str)s", 1, %(arg_str)s)', fmt_str=fmt_str, arg_str=arg_str) out('}') |