1 files changed, 93 insertions, 4 deletions

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 407041d20de0..dddf3f01b5ab 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -11,6 +11,8 @@
 
 static char const               *script_name;
 static char const               *generate_script_lang;
+static bool                     debug_ordering;
+static u64                      last_timestamp;
 
 static int default_start_script(const char *script __unused,
                                 int argc __unused,
@@ -51,6 +53,8 @@ static void setup_scripting(void)
 
 static int cleanup_scripting(void)
 {
+        pr_debug("\nperf trace script stopped\n");
+
         return scripting_ops->stop_script();
 }
 
@@ -87,6 +91,14 @@ static int process_sample_event(event_t *event, struct perf_session *session)
         }
 
         if (session->sample_type & PERF_SAMPLE_RAW) {
+                if (debug_ordering) {
+                        if (data.time < last_timestamp) {
+                                pr_err("Samples misordered, previous: %llu "
+                                        "this: %llu\n", last_timestamp,
+                                        data.time);
+                        }
+                        last_timestamp = data.time;
+                }
                 /*
                  * FIXME: better resolve from pid from the struct trace_entry
                  * field, although it should be the same than this perf
@@ -97,17 +109,31 @@ static int process_sample_event(event_t *event, struct perf_session *session)
                                              data.time, thread->comm);
         }
 
-        session->events_stats.total += data.period;
+        session->hists.stats.total_period += data.period;
         return 0;
 }
 
 static struct perf_event_ops event_ops = {
         .sample = process_sample_event,
         .comm   = event__process_comm,
+        .attr   = event__process_attr,
+        .event_type = event__process_event_type,
+        .tracing_data = event__process_tracing_data,
+        .build_id = event__process_build_id,
+        .ordered_samples = true,
 };
 
+extern volatile int session_done;
+
+static void sig_handler(int sig __unused)
+{
+        session_done = 1;
+}
+
 static int __cmd_trace(struct perf_session *session)
 {
+        signal(SIGINT, sig_handler);
+
         return perf_session__process_events(session, &event_ops);
 }
 
@@ -505,7 +531,7 @@ static const char * const trace_usage[] = {
 static const struct option options[] = {
         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
                     "dump raw trace in ASCII"),
-        OPT_BOOLEAN('v', "verbose", &verbose,
+        OPT_INCR('v', "verbose", &verbose,
                     "be more verbose (show symbol address, etc)"),
         OPT_BOOLEAN('L', "Latency", &latency_format,
                     "show latency attributes (irqs/preemption disabled, etc)"),
@@ -518,6 +544,8 @@ static const struct option options[] = {
                    "generate perf-trace.xx script in specified language"),
         OPT_STRING('i', "input", &input_name, "file",
                     "input file name"),
+        OPT_BOOLEAN('d', "debug-ordering", &debug_ordering,
+                   "check that samples time ordering is monotonic"),
 
         OPT_END()
 };
@@ -548,6 +576,65 @@ int cmd_trace(int argc, const char **argv, const char *prefix __used)
                 suffix = REPORT_SUFFIX;
         }
 
+        if (!suffix && argc >= 2 && strncmp(argv[1], "-", strlen("-")) != 0) {
+                char *record_script_path, *report_script_path;
+                int live_pipe[2];
+                pid_t pid;
+
+                record_script_path = get_script_path(argv[1], RECORD_SUFFIX);
+                if (!record_script_path) {
+                        fprintf(stderr, "record script not found\n");
+                        return -1;
+                }
+
+                report_script_path = get_script_path(argv[1], REPORT_SUFFIX);
+                if (!report_script_path) {
+                        fprintf(stderr, "report script not found\n");
+                        return -1;
+                }
+
+                if (pipe(live_pipe) < 0) {
+                        perror("failed to create pipe");
+                        exit(-1);
+                }
+
+                pid = fork();
+                if (pid < 0) {
+                        perror("failed to fork");
+                        exit(-1);
+                }
+
+                if (!pid) {
+                        dup2(live_pipe[1], 1);
+                        close(live_pipe[0]);
+
+                        __argv = malloc(5 * sizeof(const char *));
+                        __argv[0] = "/bin/sh";
+                        __argv[1] = record_script_path;
+                        __argv[2] = "-o";
+                        __argv[3] = "-";
+                        __argv[4] = NULL;
+
+                        execvp("/bin/sh", (char **)__argv);
+                        exit(-1);
+                }
+
+                dup2(live_pipe[0], 0);
+                close(live_pipe[1]);
+
+                __argv = malloc((argc + 3) * sizeof(const char *));
+                __argv[0] = "/bin/sh";
+                __argv[1] = report_script_path;
+                for (i = 2; i < argc; i++)
+                        __argv[i] = argv[i];
+                __argv[i++] = "-i";
+                __argv[i++] = "-";
+                __argv[i++] = NULL;
+
+                execvp("/bin/sh", (char **)__argv);
+                exit(-1);
+        }
+
         if (suffix) {
                 script_path = get_script_path(argv[2], suffix);
                 if (!script_path) {
@@ -576,11 +663,12 @@ int cmd_trace(int argc, const char **argv, const char *prefix __used)
         if (!script_name)
                 setup_pager();
 
-        session = perf_session__new(input_name, O_RDONLY, 0);
+        session = perf_session__new(input_name, O_RDONLY, 0, false);
         if (session == NULL)
                 return -ENOMEM;
 
-        if (!perf_session__has_traces(session, "record -R"))
+        if (strcmp(input_name, "-") &&
+            !perf_session__has_traces(session, "record -R"))
                 return -EINVAL;
 
         if (generate_script_lang) {
@@ -617,6 +705,7 @@ int cmd_trace(int argc, const char **argv, const char *prefix __used)
                 err = scripting_ops->start_script(script_name, argc, argv);
                 if (err)
                         goto out;
+                pr_debug("perf trace started with script %s\n\n", script_name);
         }
 
         err = __cmd_trace(session);