linux-kernel - [PATCH V4 14/21] perf tools: change "machine" functions to set thread pid

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Date:	Thu,  4 Jul 2013 16:20:33 +0300
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>, Mike Galbraith <efault@....de>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>,
	Ingo Molnar <mingo@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>
Subject: [PATCH V4 14/21] perf tools: change "machine" functions to set thread pid

Typically tracking events such as mmap events, comm events,
fork events and exit events, are processed by "machine"
functions.  Change these functions to put pid in the new
pid_ member of struct thread.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
 tools/perf/util/machine.c | 21 +++++++++++++++++----
 tools/perf/util/machine.h |  2 ++
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index fe5d9db..a7ed350 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -287,6 +287,12 @@ struct thread *machine__findnew_thread(struct machine *machine, pid_t tid)
 	return __machine__findnew_thread(machine, 0, tid, true);
 }
 
+struct thread *machine__findnew_thread_ex(struct machine *machine, pid_t pid,
+					  pid_t tid)
+{
+	return __machine__findnew_thread(machine, pid, tid, true);
+}
+
 struct thread *machine__find_thread(struct machine *machine, pid_t tid)
 {
 	return __machine__findnew_thread(machine, 0, tid, false);
@@ -294,7 +300,9 @@ struct thread *machine__find_thread(struct machine *machine, pid_t tid)
 
 int machine__process_comm_event(struct machine *machine, union perf_event *event)
 {
-	struct thread *thread = machine__findnew_thread(machine, event->comm.tid);
+	struct thread *thread = machine__findnew_thread_ex(machine,
+							   event->comm.pid,
+							   event->comm.tid);
 
 	if (dump_trace)
 		perf_event__fprintf_comm(event, stdout);
@@ -975,7 +983,8 @@ int machine__process_mmap_event(struct machine *machine, union perf_event *event
 		return 0;
 	}
 
-	thread = machine__findnew_thread(machine, event->mmap.pid);
+	thread = machine__findnew_thread_ex(machine, event->mmap.pid,
+					    event->mmap.pid);
 	if (thread == NULL)
 		goto out_problem;
 
@@ -1002,8 +1011,12 @@ out_problem:
 
 int machine__process_fork_event(struct machine *machine, union perf_event *event)
 {
-	struct thread *thread = machine__findnew_thread(machine, event->fork.tid);
-	struct thread *parent = machine__findnew_thread(machine, event->fork.ptid);
+	struct thread *thread = machine__findnew_thread_ex(machine,
+							   event->fork.pid,
+							   event->fork.tid);
+	struct thread *parent = machine__findnew_thread_ex(machine,
+							   event->fork.ppid,
+							   event->fork.ptid);
 
 	if (dump_trace)
 		perf_event__fprintf_task(event, stdout);
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index e49ba01..d986ecf 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -100,6 +100,8 @@ static inline bool machine__is_host(struct machine *machine)
 }
 
 struct thread *machine__findnew_thread(struct machine *machine, pid_t tid);
+struct thread *machine__findnew_thread_ex(struct machine *machine, pid_t pid,
+					  pid_t tid);
 
 size_t machine__fprintf(struct machine *machine, FILE *fp);
 
-- 
1.7.11.7

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