trace-cmd: Add -O to trace-cmd report to pass options to plugins

The -O field now passes options to the plugins. The format is of:

	-O [plugin:]var[=val]

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/Documentation/trace-cmd-report.1.txt b/Documentation/trace-cmd-report.1.txt
index 148f9d9..9c9a8e7 100644
--- a/Documentation/trace-cmd-report.1.txt
+++ b/Documentation/trace-cmd-report.1.txt
@@ -167,6 +167,17 @@ OPTIONS
 *-q*::
     Quiet non critical warnings.
 
+*-O*::
+    Pass options to the trace-cmd plugins that are loaded.
+
+     -O plugin:var=value
+
+     The 'plugin:' and '=value' are optional. Value may be left off for options
+     that are boolean. If the 'plugin:' is left off, then any variable that matches
+     in all plugins will be set.
+
+     Example:  -O fgraph:tailprint
+
 EXAMPLES
 --------