linux-kernel - [tip:perf/urgent] perf thread_map: Create dummy constructor out of open coded equivalent

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <tip-8av26cz8uxmbnihl5mmrygp9@git.kernel.org>
Date:	Wed, 15 Oct 2014 03:04:30 -0700
From:	tip-bot for Arnaldo Carvalho de Melo <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	adrian.hunter@...el.com, acme@...hat.com, eranian@...gle.com,
	mingo@...nel.org, efault@....de, hpa@...or.com,
	peterz@...radead.org, paulus@...ba.org, jolsa@...hat.com,
	tglx@...utronix.de, namhyung@...nel.org, dzickus@...hat.com,
	bp@...e.de, jean.pihet@...aro.org, linux-kernel@...r.kernel.org,
	dsahern@...il.com, fweisbec@...il.com
Subject: [tip:perf/urgent] perf thread_map:
  Create dummy constructor out of open coded equivalent

Commit-ID:  641556c98c821922a9a2121247b5fa25e4407d11
Gitweb:     http://git.kernel.org/tip/641556c98c821922a9a2121247b5fa25e4407d11
Author:     Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate: Fri, 10 Oct 2014 12:03:46 -0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Tue, 14 Oct 2014 17:32:52 -0300

perf thread_map: Create dummy constructor out of open coded equivalent

Create a dummy thread_map, one that has just one entry and it is -1,
meaning 'all threads', as this ends up going down to perf_event_open().

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Borislav Petkov <bp@...e.de>
Cc: David Ahern <dsahern@...il.com>
Cc: Don Zickus <dzickus@...hat.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Jean Pihet <jean.pihet@...aro.org>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Mike Galbraith <efault@....de>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/n/tip-8av26cz8uxmbnihl5mmrygp9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/thread_map.c | 21 +++++++++++++--------
 tools/perf/util/thread_map.h |  1 +
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c
index 5d32159..f93b973 100644
--- a/tools/perf/util/thread_map.c
+++ b/tools/perf/util/thread_map.c
@@ -214,6 +214,17 @@ out_free_threads:
 	goto out;
 }
 
+struct thread_map *thread_map__new_dummy(void)
+{
+	struct thread_map *threads = malloc(sizeof(*threads) + sizeof(pid_t));
+
+	if (threads != NULL) {
+		threads->map[0]	= -1;
+		threads->nr	= 1;
+	}
+	return threads;
+}
+
 static struct thread_map *thread_map__new_by_tid_str(const char *tid_str)
 {
 	struct thread_map *threads = NULL, *nt;
@@ -224,14 +235,8 @@ static struct thread_map *thread_map__new_by_tid_str(const char *tid_str)
 	struct strlist *slist;
 
 	/* perf-stat expects threads to be generated even if tid not given */
-	if (!tid_str) {
-		threads = malloc(sizeof(*threads) + sizeof(pid_t));
-		if (threads != NULL) {
-			threads->map[0] = -1;
-			threads->nr	= 1;
-		}
-		return threads;
-	}
+	if (!tid_str)
+		return thread_map__new_dummy();
 
 	slist = strlist__new(false, tid_str);
 	if (!slist)
diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h
index 0cd8b31..95313f4 100644
--- a/tools/perf/util/thread_map.h
+++ b/tools/perf/util/thread_map.h
@@ -9,6 +9,7 @@ struct thread_map {
 	pid_t map[];
 };
 
+struct thread_map *thread_map__new_dummy(void);
 struct thread_map *thread_map__new_by_pid(pid_t pid);
 struct thread_map *thread_map__new_by_tid(pid_t tid);
 struct thread_map *thread_map__new_by_uid(uid_t uid);
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/