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perf trace: Honor target pid / tid options when analyzing a file 

Allows capture of raw_syscall events for all processes or threads in a
task and then analyzing specific ones.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1377750593-48046-4-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
hifive-unleashed-5.1
David Ahern 2013-08-28 22:29:53 -06:00 committed by Arnaldo Carvalho de Melo
parent 6810fc915f
commit bdc896617b
1 changed files with 43 additions and 0 deletions
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43
tools/perf/builtin-trace.c
View File

@ -8,6 +8,7 @@
#include "util/thread.h"
#include "util/parse-options.h"
#include "util/strlist.h"
#include "util/intlist.h"
#include "util/thread_map.h"
#include <libaudit.h>
@ -259,6 +260,8 @@ struct trace {
unsigned long nr_events;
struct strlist *ev_qualifier;
bool not_ev_qualifier;
struct intlist *tid_list;
struct intlist *pid_list;
bool sched;
bool multiple_threads;
double duration_filter;
@ -653,6 +656,18 @@ out_dump:
return 0;
}
static bool skip_sample(struct trace *trace, struct perf_sample *sample)
{
if ((trace->pid_list && intlist__find(trace->pid_list, sample->pid)) ||
(trace->tid_list && intlist__find(trace->tid_list, sample->tid)))
return false;
if (trace->pid_list || trace->tid_list)
return true;
return false;
}
static int trace__process_sample(struct perf_tool *tool,
union perf_event *event __maybe_unused,
struct perf_sample *sample,
@ -664,6 +679,9 @@ static int trace__process_sample(struct perf_tool *tool,
tracepoint_handler handler = evsel->handler.func;
if (skip_sample(trace, sample))
return 0;
if (trace->base_time == 0)
trace->base_time = sample->time;
@ -683,6 +701,27 @@ perf_session__has_tp(struct perf_session *session, const char *name)
return evsel != NULL;
}
static int parse_target_str(struct trace *trace)
{
if (trace->opts.target.pid) {
trace->pid_list = intlist__new(trace->opts.target.pid);
if (trace->pid_list == NULL) {
pr_err("Error parsing process id string\n");
return -EINVAL;
}
}
if (trace->opts.target.tid) {
trace->tid_list = intlist__new(trace->opts.target.tid);
if (trace->tid_list == NULL) {
pr_err("Error parsing thread id string\n");
return -EINVAL;
}
}
return 0;
}
static int trace__run(struct trace *trace, int argc, const char **argv)
{
struct perf_evlist *evlist = perf_evlist__new();
@ -869,6 +908,10 @@ static int trace__replay(struct trace *trace)
goto out;
}
err = parse_target_str(trace);
if (err != 0)
goto out;
setup_pager();
err = perf_session__process_events(session, &trace->tool);