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authorArnaldo Carvalho de Melo <acme@redhat.com>2013-08-21 12:56:21 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-08-26 17:25:41 -0300
commitb059efdf52a27819b78aa30f171f1e8e439152b6 (patch)
treebbd79fc5b14dd010593f7b9974d7bfe7a9b90460 /tools/perf/Documentation
parent8c9dc52850d686f614aa44c59eee682d58a6656c (diff)
perf trace: Support ! in -e expressions
So that we can ask for all but a set of syscalls to be traced. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9j6hvap23qanyl96wx4mrj9k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
-rw-r--r--tools/perf/Documentation/perf-trace.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index cb3371eb597d..4754f11a862b 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -30,6 +30,8 @@ OPTIONS
-e::
--expr::
List of events to show, currently only syscall names.
+ Prefixing with ! shows all syscalls but the ones specified. You may
+ need to escape it.
-o::
--output=::