Author: Lim,GeunSik <leemgs1@gmail.com>
Date:   Fri Apr 24 10:13:55 2009 +0900

    [PATCH] cyclictest: Add tracing function about wakeup and wakeup_rt of ftrace.
    
    This is patch to support wakeup & wakeup_rt tracing at the argument of
    cyclictest additionally. Current cyclictest support three tracing
    like PREEMPTOFF, IRQSOFF, PREEMPTIRQSOFF just.
    
    This additional function will help wakeup related tracing
    about sleep api [ex: nanosleep() , usleep] of cyclictest.

    Practically speaking, wakeup(+wakeup-rt) tracing by steven rostedt is useful 
    in the linux based embedded product development.
    
    After patching,
    Fedora9#> cat /debug/tracing/available_tracers
    syscall blk kmemtrace power branch function_graph mmiotrace wakeup_rt wakeup \
    preemptirqsoff preemptoff irqsoff function sched_switch initcall nop
    Fedora9#> cyclictest -t 5 -p 80 -b 1000 -w -D 10 [enter] <--- tracing wakeup
    Fedora9#> cat /debug/tracing/trace
    
    Fedora9#> cyclictest -t 5 -p 80 -b 1000 -W -D 10 [enter] <--- tracing wakeup-rt
    Fedora9#> cat /debug/tracing/trace
    
        Signed-off-by: GeunSik Lim <geunsik.lim@samsung.com>

diff --git a/src/cyclictest/cyclictest.c b/src/cyclictest/cyclictest.c
index 884f2c3..93b895b 100644
--- a/src/cyclictest/cyclictest.c
+++ b/src/cyclictest/cyclictest.c
@@ -93,6 +93,8 @@ enum {
 	IRQSOFF,
 	PREEMPTOFF,
 	IRQPREEMPTOFF,
+	WAKEUP,
+	WAKEUPRT,
 };
 
 #define HIST_MAX		1000000
@@ -415,6 +417,13 @@ static void setup_tracer(void)
 		case CTXTSWITCH:
 			ret = settracer("sched_switch");
 			break;
+               case WAKEUP:
+                       ret = settracer("wakeup");
+                       break;
+               case WAKEUPRT:
+                       ret = settracer("wakeup_rt");
+                       break;
+
 		default:
 			printf("cyclictest: unknown tracer!\n");
 			ret = 0;
@@ -711,6 +720,9 @@ static void display_help(void)
 	       "                           to modify value to minutes, hours or days\n"
 	       "-h       --histogram=US    dump a latency histogram to stdout after the run\n"
 	       "                           US is the max time to be be tracked in microseconds\n"
+               "-w       --wakeup          rt task wakeup tracing (used with -b)\n"
+               "-W       --wakeuprt        non_rt task wakeup_rt tracing (used with -b)\n"
+
 		);
 	exit(0);
 }
@@ -773,10 +785,12 @@ static void process_options (int argc, char *argv[])
 			{"threads", optional_argument, NULL, 't'},
 			{"verbose", no_argument, NULL, 'v'},
 			{"duration",required_argument, NULL, 'D'},
+                        {"wakeup", no_argument, NULL, 'w'},
+                        {"wakeuprt", no_argument, NULL, 'W'},
 			{"help", no_argument, NULL, '?'},
 			{NULL, 0, NULL, 0}
 		};
-		int c = getopt_long (argc, argv, "a::b:Bc:Cd:Efh:i:Il:nNo:p:Pmqrst::vD:",
+		int c = getopt_long (argc, argv, "a::b:Bc:Cd:Efh:i:Il:nNo:p:Pmqrst::vD:wW:",
 			long_options, &option_index);
 		if (c == -1)
 			break;
@@ -821,8 +835,9 @@ static void process_options (int argc, char *argv[])
 			break;
 		case 'v': verbose = 1; break;
 		case 'm': lockall = 1; break;
-		case 'D': duration = parse_time_string(optarg);
-			break;
+		case 'D': duration = parse_time_string(optarg); break;
+                case 'w': tracetype = WAKEUP; break;
+                case 'W': tracetype = WAKEUPRT; break;
 		case '?': error = 1; break;
 		}
 	}