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Subject[tip:perf/core] perf trace: Update tid/pid filtering option to leverage symbol_conf
Commit-ID:  aa07df6eb5061eed3f5d0820dc646d7f6ddface2
Gitweb: http://git.kernel.org/tip/aa07df6eb5061eed3f5d0820dc646d7f6ddface2
Author: David Ahern <dsahern@gmail.com>
AuthorDate: Fri, 25 Nov 2016 09:29:52 -0700
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 25 Nov 2016 16:04:22 -0300

perf trace: Update tid/pid filtering option to leverage symbol_conf

Leverage pid/tid filtering done by symbol_conf hooks.

Signed-off-by: David Ahern <dsahern@gmail.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/r/1480091392-35645-1-git-send-email-dsa@cumulusnetworks.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-trace.c | 49 +++++++++-------------------------------------
1 file changed, 9 insertions(+), 40 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 5f45166..206bf72 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -74,8 +74,6 @@ struct trace {
size_t nr;
int *entries;
} ev_qualifier_ids;
- struct intlist *tid_list;
- struct intlist *pid_list;
struct {
size_t nr;
pid_t *entries;
@@ -1890,18 +1888,6 @@ out_put:
return err;
}

-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 void trace__set_base_time(struct trace *trace,
struct perf_evsel *evsel,
struct perf_sample *sample)
@@ -1926,11 +1912,13 @@ static int trace__process_sample(struct perf_tool *tool,
struct machine *machine __maybe_unused)
{
struct trace *trace = container_of(tool, struct trace, tool);
+ struct thread *thread;
int err = 0;

tracepoint_handler handler = evsel->handler;

- if (skip_sample(trace, sample))
+ thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
+ if (thread && thread__is_filtered(thread))
return 0;

trace__set_base_time(trace, evsel, sample);
@@ -1943,27 +1931,6 @@ static int trace__process_sample(struct perf_tool *tool,
return err;
}

-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__record(struct trace *trace, int argc, const char **argv)
{
unsigned int rec_argc, i, j;
@@ -2460,6 +2427,12 @@ static int trace__replay(struct trace *trace)
if (session == NULL)
return -1;

+ if (trace->opts.target.pid)
+ symbol_conf.pid_list_str = strdup(trace->opts.target.pid);
+
+ if (trace->opts.target.tid)
+ symbol_conf.tid_list_str = strdup(trace->opts.target.tid);
+
if (symbol__init(&session->header.env) < 0)
goto out;

@@ -2503,10 +2476,6 @@ static int trace__replay(struct trace *trace)
evsel->handler = trace__pgfault;
}

- err = parse_target_str(trace);
- if (err != 0)
- goto out;
-
setup_pager();

err = perf_session__process_events(session);
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