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Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull perf tooling fixes from Thomas Gleixner:

 - Fix the time sorting algorithm which was broken due to truncation of
   big numbers

 - Fix the python script generator fail caused by a broken tracepoint
   array iterator

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf tools: Fix time sorting
  perf tools: Remove unused trace_find_next_event()
  perf scripting engines: Iterate on tep event arrays directly
This commit is contained in:
Linus Torvalds 2019-11-10 11:55:53 -08:00
commit b584a17628
5 changed files with 14 additions and 38 deletions
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2
tools/perf/util/hist.c
View File

@ -1625,7 +1625,7 @@ int hists__collapse_resort(struct hists *hists, struct ui_progress *prog)
return 0;
}
static int hist_entry__sort(struct hist_entry *a, struct hist_entry *b)
static int64_t hist_entry__sort(struct hist_entry *a, struct hist_entry *b)
{
struct hists *hists = a->hists;
struct perf_hpp_fmt *fmt;

8
tools/perf/util/scripting-engines/trace-event-perl.c
View File

@ -539,10 +539,11 @@ static int perl_stop_script(void)
static int perl_generate_script(struct tep_handle *pevent, const char *outfile)
{
int i, not_first, count, nr_events;
struct tep_event **all_events;
struct tep_event *event = NULL;
struct tep_format_field *f;
char fname[PATH_MAX];
int not_first, count;
FILE *ofp;
sprintf(fname, "%s.pl", outfile);
@ -603,8 +604,11 @@ sub print_backtrace\n\
}\n\n\
");
nr_events = tep_get_events_count(pevent);
all_events = tep_list_events(pevent, TEP_EVENT_SORT_ID);
while ((event = trace_find_next_event(pevent, event))) {
for (i = 0; all_events && i < nr_events; i++) {
event = all_events[i];
fprintf(ofp, "sub %s::%s\n{\n", event->system, event->name);
fprintf(ofp, "\tmy (");

9
tools/perf/util/scripting-engines/trace-event-python.c
View File

@ -1687,10 +1687,11 @@ static int python_stop_script(void)
static int python_generate_script(struct tep_handle *pevent, const char *outfile)
{
int i, not_first, count, nr_events;
struct tep_event **all_events;
struct tep_event *event = NULL;
struct tep_format_field *f;
char fname[PATH_MAX];
int not_first, count;
FILE *ofp;
sprintf(fname, "%s.py", outfile);
@ -1735,7 +1736,11 @@ static int python_generate_script(struct tep_handle *pevent, const char *outfile
fprintf(ofp, "def trace_end():\n");
fprintf(ofp, "\tprint(\"in trace_end\")\n\n");
while ((event = trace_find_next_event(pevent, event))) {
nr_events = tep_get_events_count(pevent);
all_events = tep_list_events(pevent, TEP_EVENT_SORT_ID);
for (i = 0; all_events && i < nr_events; i++) {
event = all_events[i];
fprintf(ofp, "def %s__%s(", event->system, event->name);
fprintf(ofp, "event_name, ");
fprintf(ofp, "context, ");

31
tools/perf/util/trace-event-parse.c
View File

@ -173,37 +173,6 @@ int parse_event_file(struct tep_handle *pevent,
return tep_parse_event(pevent, buf, size, sys);
}
struct tep_event *trace_find_next_event(struct tep_handle *pevent,
struct tep_event *event)
{
static int idx;
int events_count;
struct tep_event *all_events;
all_events = tep_get_first_event(pevent);
events_count = tep_get_events_count(pevent);
if (!pevent || !all_events || events_count < 1)
return NULL;
if (!event) {
idx = 0;
return all_events;
}
if (idx < events_count && event == (all_events + idx)) {
idx++;
if (idx == events_count)
return NULL;
return (all_events + idx);
}
for (idx = 1; idx < events_count; idx++) {
if (event == (all_events + (idx - 1)))
return (all_events + idx);
}
return NULL;
}
struct flag {
const char *name;
unsigned long long value;

2
tools/perf/util/trace-event.h
View File

@ -47,8 +47,6 @@ void parse_saved_cmdline(struct tep_handle *pevent, char *file, unsigned int siz
ssize_t trace_report(int fd, struct trace_event *tevent, bool repipe);
struct tep_event *trace_find_next_event(struct tep_handle *pevent,
struct tep_event *event);
unsigned long long read_size(struct tep_event *event, void *ptr, int size);
unsigned long long eval_flag(const char *flag);