[PATCH 4/7] trace-cmd: Add --verbose to bunch of trace-cmd commands

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

Add new "--verbose" argument for setting the desired log level to these
trace-cmd commands:
 start
 set
 extract
 stream
 profile
 record

Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
 Documentation/trace-cmd/trace-cmd-extract.1.txt | 8 ++++++++
 Documentation/trace-cmd/trace-cmd-profile.1.txt | 9 +++++++++
 Documentation/trace-cmd/trace-cmd-record.1.txt  | 9 +++++++++
 Documentation/trace-cmd/trace-cmd-set.1.txt     | 9 +++++++++
 tracecmd/trace-record.c                         | 6 ++++++
 tracecmd/trace-usage.c                          | 6 ++++++
 6 files changed, 47 insertions(+)

diff --git a/Documentation/trace-cmd/trace-cmd-extract.1.txt b/Documentation/trace-cmd/trace-cmd-extract.1.txt
index 4444733d..88749da7 100644
--- a/Documentation/trace-cmd/trace-cmd-extract.1.txt
+++ b/Documentation/trace-cmd/trace-cmd-extract.1.txt
@@ -67,6 +67,14 @@ OPTIONS
     this is the same as the default. But if *-B* or *-a* is used, this is
     required if the top level instance buffer should also be extracted.
 
+*--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 extract --verbose warning
 
 SEE ALSO
 --------
diff --git a/Documentation/trace-cmd/trace-cmd-profile.1.txt b/Documentation/trace-cmd/trace-cmd-profile.1.txt
index 0d1dd8e8..0d285ff7 100644
--- a/Documentation/trace-cmd/trace-cmd-profile.1.txt
+++ b/Documentation/trace-cmd/trace-cmd-profile.1.txt
@@ -90,6 +90,15 @@ These are the same as trace-cmd-record(1) with the *--profile* option.
     is not changed. This allows watching the command execute and saving the
     output of the profile to another file.
 
+*--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 profile --verbose warning
+
 EXAMPLES
 --------
 
diff --git a/Documentation/trace-cmd/trace-cmd-record.1.txt b/Documentation/trace-cmd/trace-cmd-record.1.txt
index 55a8891b..4c4432de 100644
--- a/Documentation/trace-cmd/trace-cmd-record.1.txt
+++ b/Documentation/trace-cmd/trace-cmd-record.1.txt
@@ -360,6 +360,15 @@ OPTIONS
     executed will not be changed. This is useful if you want to monitor the
     output of the command being executed, but not see the output from trace-cmd.
 
+*--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 record --verbose warning
+
 EXAMPLES
 --------
 
diff --git a/Documentation/trace-cmd/trace-cmd-set.1.txt b/Documentation/trace-cmd/trace-cmd-set.1.txt
index 931d3abd..50af7677 100644
--- a/Documentation/trace-cmd/trace-cmd-set.1.txt
+++ b/Documentation/trace-cmd/trace-cmd-set.1.txt
@@ -227,6 +227,15 @@ OPTIONS
     unless the *--fork* option is specified. Then it will fork the command and
     return immediately.
 
+*--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 set --verbose warning
+
 EXAMPLES
 --------
 
diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c
index 8805b10e..5b1c0d19 100644
--- a/tracecmd/trace-record.c
+++ b/tracecmd/trace-record.c
@@ -5515,6 +5515,7 @@ void init_top_instance(void)
 }
 
 enum {
+	OPT_verbose		= 239,
 	OPT_tsc2nsec		= 240,
 	OPT_fork		= 241,
 	OPT_tsyncinterval	= 242,
@@ -5949,6 +5950,7 @@ static void parse_record_options(int argc,
 			{"tsync-interval", required_argument, NULL, OPT_tsyncinterval},
 			{"fork", no_argument, NULL, OPT_fork},
 			{"tsc2nsec", no_argument, NULL, OPT_tsc2nsec},
+			{"verbose", required_argument, NULL, OPT_verbose},
 			{NULL, 0, NULL, 0}
 		};
 
@@ -6374,6 +6376,10 @@ static void parse_record_options(int argc,
 		case 'q':
 			quiet = true;
 			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 cacec3c5..10f06467 100644
--- a/tracecmd/trace-usage.c
+++ b/tracecmd/trace-usage.c
@@ -68,6 +68,7 @@ static struct usage_help usage_help[] = {
 		"               If a negative number is specified, timestamps synchronization is disabled"
 		"               If 0 is specified, no loop is performed - timestamps offset is calculated only twice,"
 		"                                                         at the beginnig and at the end of the trace\n"
+		"          --verbose 'level' Set the desired log level\n"
 	},
 	{
 		"set",
@@ -104,6 +105,7 @@ static struct usage_help usage_help[] = {
 		"          --cmdlines-size change kernel saved_cmdlines_size\n"
 		"          --user execute the specified [command ...] as given user\n"
 		"          --fork return immediately if a command is specified\n"
+		"          --verbose 'level' Set the desired log level\n"
 	},
 	{
 		"start",
@@ -113,6 +115,7 @@ static struct usage_help usage_help[] = {
 		"          It only enables the tracing and exits\n"
 		"\n"
 		"        --fork: If a command is specified, then return right after it forks\n"
+		"        --verbose 'level' Set the desired log level\n"
 	},
 	{
 		"extract",
@@ -123,6 +126,7 @@ static struct usage_help usage_help[] = {
 		"          -B : extract a given buffer (more than one may be specified)\n"
 		"          -a : extract all buffers (except top one)\n"
 		"          -t : extract the top level buffer (useful with -B and -a)\n"
+		"          --verbose 'level' Set the desired log level\n"
 	},
 	{
 		"stop",
@@ -241,6 +245,7 @@ static struct usage_help usage_help[] = {
 		"Start tracing and read the output directly",
 		" %s stream [-e event][-p plugin][-d][-O option ][-P pid]\n"
 		"          Uses same options as record but does not write to files or the network.\n"
+		"          --verbose 'level' Set the desired log level\n"
 	},
 	{
 		"profile",
@@ -249,6 +254,7 @@ static struct usage_help usage_help[] = {
 		"    [-H [start_system:]start_event,start_match[,pid]/[end_system:]end_event,end_match[,flags]\n\n"
 		"          Uses same options as record --profile.\n"
 		"          -H Allows users to hook two events together for timings\n"
+		"          --verbose 'level' Set the desired log level\n"
 	},
 	{
 		"hist",
-- 
2.30.2