[PATCH 1/7] trace-cmd report: Add --verbose

["Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>]

Add new "trace-cmd report --verbose" argument for setting the desired
log level.

Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
 Documentation/trace-cmd/trace-cmd-report.1.txt | 9 +++++++++
 tracecmd/trace-read.c                          | 6 ++++++
 tracecmd/trace-usage.c                         | 1 +
 3 files changed, 16 insertions(+)

diff --git a/Documentation/trace-cmd/trace-cmd-report.1.txt b/Documentation/trace-cmd/trace-cmd-report.1.txt
index 72b47065..e444e8c0 100644
--- a/Documentation/trace-cmd/trace-cmd-report.1.txt
+++ b/Documentation/trace-cmd/trace-cmd-report.1.txt
@@ -312,6 +312,15 @@ OPTIONS
 *--raw-ts*::
      Display raw timestamps, without any corrections.
 
+*--verbose* 'level'::
+     Set the log level. Supported log levels are "none", "critical", "error", "warning",
+     "info", "debug", "all" or their identifiers "0", "1", "2", "3", "4", "5", "6". Setting the log
+     level to specific value enables all logs from that and all previous levels.
+
+     Example: enable all critical, error and warning logs
+
+      trace-cmd report --verbose warning
+
 EXAMPLES
 --------
 
diff --git a/tracecmd/trace-read.c b/tracecmd/trace-read.c
index aad57dae..146fdb3c 100644
--- a/tracecmd/trace-read.c
+++ b/tracecmd/trace-read.c
@@ -1485,6 +1485,7 @@ static void add_hook(const char *arg)
 }
 
 enum {
+	OPT_verbose	= 235,
 	OPT_raw_ts	= 236,
 	OPT_version	= 237,
 	OPT_tscheck	= 238,
@@ -1578,6 +1579,7 @@ void trace_report (int argc, char **argv)
 			{"ts-diff", no_argument, NULL, OPT_tsdiff},
 			{"ts-check", no_argument, NULL, OPT_tscheck},
 			{"raw-ts", no_argument, NULL, OPT_raw_ts},
+			{"verbose", required_argument, NULL, OPT_verbose},
 			{"help", no_argument, NULL, '?'},
 			{NULL, 0, NULL, 0}
 		};
@@ -1755,6 +1757,10 @@ void trace_report (int argc, char **argv)
 		case OPT_raw_ts:
 			raw_ts = 1;
 			break;
+		case OPT_verbose:
+			if (trace_set_verbose(optarg) < 0)
+				die("invalid verbose level %s", optarg);
+			break;
 		default:
 			usage(argv);
 		}
diff --git a/tracecmd/trace-usage.c b/tracecmd/trace-usage.c
index 98247074..edc43ba9 100644
--- a/tracecmd/trace-usage.c
+++ b/tracecmd/trace-usage.c
@@ -234,6 +234,7 @@ static struct usage_help usage_help[] = {
 		"          --ts-diff Show the delta timestamp between events.\n"
 		"          --ts-check Check to make sure no time stamp on any CPU goes backwards.\n"
 		"          --raw-ts Display raw timestamps, without any corrections.\n"
+		"          --verbose 'level' Set the desired log level\n"
 	},
 	{
 		"stream",
-- 
2.30.2