perf_counter tools: Document '--' option parsing terminator

Signed-off-by: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

4 files changed, 5 insertions, 1 deletions

diff --git a/Documentation/perf_counter/Documentation/perf-record.txt b/Documentation/perf_counter/Documentation/perf-record.txt
index 353db1bb98a..a93d2ec6176 100644
--- a/Documentation/perf_counter/Documentation/perf-record.txt
+++ b/Documentation/perf_counter/Documentation/perf-record.txt
@@ -9,6 +9,7 @@ SYNOPSIS
 --------
 [verse]
 'perf record' [-e <EVENT> | --event=EVENT] [-l] [-a] <command>
+'perf record' [-e <EVENT> | --event=EVENT] [-l] [-a] -- <command> [<options>]
 
 DESCRIPTION
 -----------
diff --git a/Documentation/perf_counter/Documentation/perf-stat.txt b/Documentation/perf_counter/Documentation/perf-stat.txt
index 7fcab271e57..828c59ff5f5 100644
--- a/Documentation/perf_counter/Documentation/perf-stat.txt
+++ b/Documentation/perf_counter/Documentation/perf-stat.txt
@@ -9,6 +9,7 @@ SYNOPSIS
 --------
 [verse]
 'perf stat' [-e <EVENT> | --event=EVENT] [-l] [-a] <command>
+'perf stat' [-e <EVENT> | --event=EVENT] [-l] [-a] -- <command> [<options>]
 
 DESCRIPTION
 -----------
diff --git a/Documentation/perf_counter/builtin-record.c b/Documentation/perf_counter/builtin-record.c
index 4a068664a32..23d1224ce98 100644
--- a/Documentation/perf_counter/builtin-record.c
+++ b/Documentation/perf_counter/builtin-record.c
@@ -397,7 +397,8 @@ static int __cmd_record(int argc, const char **argv)
 }
 
 static const char * const record_usage[] = {
-        "perf record [<options>] <command>",
+        "perf record [<options>] [<command>]",
+        "perf record [<options>] -- <command> [<options>]",
         NULL
 };
 
diff --git a/Documentation/perf_counter/builtin-stat.c b/Documentation/perf_counter/builtin-stat.c
index ce661e2fa8d..ac14086d9a7 100644
--- a/Documentation/perf_counter/builtin-stat.c
+++ b/Documentation/perf_counter/builtin-stat.c
@@ -212,6 +212,7 @@ static void skip_signal(int signo)
 
 static const char * const stat_usage[] = {
         "perf stat [<options>] <command>",
+        "perf stat [<options>] -- <command> [<options>]",
         NULL
 };