[PATCH 2/2] perf script: add option to dump parent pid

David Ahern
2013-05-26T04:47:45Z

tools/perf/Documentation/perf-script.txt | 2 +-
tools/perf/builtin-script.c | 9 +++++++--
2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index e9cbfcd..3cca420 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -115,7 +115,7 @@ OPTIONS
-f::
--fields::
Comma separated list of fields to print. Options are:
- comm, tid, pid, time, cpu, event, trace, ip, sym, dso, addr, symoff.
+ comm, tid, pid, ppid, time, cpu, event, trace, ip, sym, dso, addr, symoff.
Field list can be prepended with the type, trace, sw or hw,
to indicate to which event type the field list applies.
e.g., -f sw:comm,tid,time,ip,sym and -f trace:time,cpu,trace
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 2e07c70..9e400e6 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -41,6 +41,7 @@ enum perf_output_field {
PERF_OUTPUT_DSO = 1U << 9,
PERF_OUTPUT_ADDR = 1U << 10,
PERF_OUTPUT_SYMOFFSET = 1U << 11,
+ PERF_OUTPUT_PPID = 1U << 12,
};

struct output_option {
@@ -50,6 +51,7 @@ struct output_option {
{.str = "comm", .field = PERF_OUTPUT_COMM},
{.str = "tid", .field = PERF_OUTPUT_TID},
{.str = "pid", .field = PERF_OUTPUT_PID},
+ {.str = "ppid", .field = PERF_OUTPUT_PPID},
{.str = "time", .field = PERF_OUTPUT_TIME},
{.str = "cpu", .field = PERF_OUTPUT_CPU},
{.str = "event", .field = PERF_OUTPUT_EVNAME},
@@ -208,7 +210,7 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel,
return -EINVAL;
}

- if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) &&
+ if ((PRINT_FIELD(PID) || PRINT_FIELD(TID) || PRINT_FIELD(PPID)) &&
perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID",
PERF_OUTPUT_TID|PERF_OUTPUT_PID))
return -EINVAL;
@@ -283,6 +285,9 @@ static void print_sample_start(struct perf_sample *sample,
else if (PRINT_FIELD(TID))
printf("%5d ", sample->tid);

+ if (PRINT_FIELD(PPID))
+ printf("%5d ", thread->ppid);
+
if (PRINT_FIELD(CPU)) {
if (latency_format)
printf("%3d ", sample->cpu);
@@ -1274,7 +1279,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
OPT_CALLBACK('f', "fields", NULL, "str",
"comma separated output fields prepend with 'type:'. "
"Valid types: hw,sw,trace,raw. "
- "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,"
+ "Fields: comm,tid,pid,ppid,time,cpu,event,trace,ip,sym,dso,"
"addr,symoff", parse_output_fields),
OPT_BOOLEAN('a', "all-cpus", &system_wide,
"system-wide collection from all CPUs"),
--
1.7.10.1