Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[pandora-kernel.git] / tools / perf / builtin-script.c
index 6cf811a..974f6d3 100644 (file)
@@ -51,6 +51,7 @@ struct output_option {
 /* default set to maintain compatibility with current format */
 static struct {
        bool user_set;
+       bool wildcard_set;
        u64 fields;
        u64 invalid_fields;
 } output[PERF_TYPE_MAX] = {
@@ -82,6 +83,16 @@ static struct {
                                  PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
                                  PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE,
        },
+
+       [PERF_TYPE_RAW] = {
+               .user_set = false,
+
+               .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
+                             PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
+                             PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM,
+
+               .invalid_fields = PERF_OUTPUT_TRACE,
+       },
 };
 
 static bool output_set_by_user(void)
@@ -94,41 +105,113 @@ static bool output_set_by_user(void)
        return false;
 }
 
+static const char *output_field2str(enum perf_output_field field)
+{
+       int i, imax = ARRAY_SIZE(all_output_options);
+       const char *str = "";
+
+       for (i = 0; i < imax; ++i) {
+               if (all_output_options[i].field == field) {
+                       str = all_output_options[i].str;
+                       break;
+               }
+       }
+       return str;
+}
+
 #define PRINT_FIELD(x)  (output[attr->type].fields & PERF_OUTPUT_##x)
 
-static int perf_session__check_attr(struct perf_session *session,
-                                   struct perf_event_attr *attr)
+static int perf_event_attr__check_stype(struct perf_event_attr *attr,
+                                 u64 sample_type, const char *sample_msg,
+                                 enum perf_output_field field)
+{
+       int type = attr->type;
+       const char *evname;
+
+       if (attr->sample_type & sample_type)
+               return 0;
+
+       if (output[type].user_set) {
+               evname = __event_name(attr->type, attr->config);
+               pr_err("Samples for '%s' event do not have %s attribute set. "
+                      "Cannot print '%s' field.\n",
+                      evname, sample_msg, output_field2str(field));
+               return -1;
+       }
+
+       /* user did not ask for it explicitly so remove from the default list */
+       output[type].fields &= ~field;
+       evname = __event_name(attr->type, attr->config);
+       pr_debug("Samples for '%s' event do not have %s attribute set. "
+                "Skipping '%s' field.\n",
+                evname, sample_msg, output_field2str(field));
+
+       return 0;
+}
+
+static int perf_evsel__check_attr(struct perf_evsel *evsel,
+                                 struct perf_session *session)
 {
+       struct perf_event_attr *attr = &evsel->attr;
+
        if (PRINT_FIELD(TRACE) &&
                !perf_session__has_traces(session, "record -R"))
                return -EINVAL;
 
        if (PRINT_FIELD(SYM)) {
-               if (!(session->sample_type & PERF_SAMPLE_IP)) {
-                       pr_err("Samples do not contain IP data.\n");
+               if (perf_event_attr__check_stype(attr, PERF_SAMPLE_IP, "IP",
+                                          PERF_OUTPUT_SYM))
                        return -EINVAL;
-               }
+
                if (!no_callchain &&
-                   !(session->sample_type & PERF_SAMPLE_CALLCHAIN))
+                   !(attr->sample_type & PERF_SAMPLE_CALLCHAIN))
                        symbol_conf.use_callchain = false;
        }
 
        if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) &&
-               !(session->sample_type & PERF_SAMPLE_TID)) {
-               pr_err("Samples do not contain TID/PID data.\n");
+               perf_event_attr__check_stype(attr, PERF_SAMPLE_TID, "TID",
+                                      PERF_OUTPUT_TID|PERF_OUTPUT_PID))
                return -EINVAL;
-       }
 
        if (PRINT_FIELD(TIME) &&
-               !(session->sample_type & PERF_SAMPLE_TIME)) {
-               pr_err("Samples do not contain timestamps.\n");
+               perf_event_attr__check_stype(attr, PERF_SAMPLE_TIME, "TIME",
+                                      PERF_OUTPUT_TIME))
                return -EINVAL;
-       }
 
        if (PRINT_FIELD(CPU) &&
-               !(session->sample_type & PERF_SAMPLE_CPU)) {
-               pr_err("Samples do not contain cpu.\n");
+               perf_event_attr__check_stype(attr, PERF_SAMPLE_CPU, "CPU",
+                                      PERF_OUTPUT_CPU))
                return -EINVAL;
+
+       return 0;
+}
+
+/*
+ * verify all user requested events exist and the samples
+ * have the expected data
+ */
+static int perf_session__check_output_opt(struct perf_session *session)
+{
+       int j;
+       struct perf_evsel *evsel;
+
+       for (j = 0; j < PERF_TYPE_MAX; ++j) {
+               evsel = perf_session__find_first_evtype(session, j);
+
+               /*
+                * even if fields is set to 0 (ie., show nothing) event must
+                * exist if user explicitly includes it on the command line
+                */
+               if (!evsel && output[j].user_set && !output[j].wildcard_set) {
+                       pr_err("%s events do not exist. "
+                              "Remove corresponding -f option to proceed.\n",
+                              event_type(j));
+                       return -1;
+               }
+
+               if (evsel && output[j].fields &&
+                       perf_evsel__check_attr(evsel, session))
+                       return -1;
        }
 
        return 0;
@@ -200,9 +283,6 @@ static void process_event(union perf_event *event __unused,
        if (output[attr->type].fields == 0)
                return;
 
-       if (perf_session__check_attr(session, attr) < 0)
-               return;
-
        print_sample_start(sample, thread, attr);
 
        if (PRINT_FIELD(TRACE))
@@ -502,6 +582,8 @@ static int parse_output_fields(const struct option *opt __used,
                        type = PERF_TYPE_SOFTWARE;
                else if (!strcmp(str, "trace"))
                        type = PERF_TYPE_TRACEPOINT;
+               else if (!strcmp(str, "raw"))
+                       type = PERF_TYPE_RAW;
                else {
                        fprintf(stderr, "Invalid event type in field string.\n");
                        return -EINVAL;
@@ -513,6 +595,7 @@ static int parse_output_fields(const struct option *opt __used,
 
                output[type].fields = 0;
                output[type].user_set = true;
+               output[type].wildcard_set = false;
 
        } else {
                tok = str;
@@ -529,6 +612,7 @@ static int parse_output_fields(const struct option *opt __used,
                for (j = 0; j < PERF_TYPE_MAX; ++j) {
                        output[j].fields = 0;
                        output[j].user_set = true;
+                       output[j].wildcard_set = true;
                }
        }
 
@@ -902,7 +986,7 @@ static const struct option options[] = {
        OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
                    "Look for files with symbols relative to this directory"),
        OPT_CALLBACK('f', "fields", NULL, "str",
-                    "comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace. Fields: comm,tid,pid,time,cpu,event,trace,sym",
+                    "comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace,raw. Fields: comm,tid,pid,time,cpu,event,trace,sym",
                     parse_output_fields),
 
        OPT_END()
@@ -1133,6 +1217,11 @@ int cmd_script(int argc, const char **argv, const char *prefix __used)
                pr_debug("perf script started with script %s\n\n", script_name);
        }
 
+
+       err = perf_session__check_output_opt(session);
+       if (err < 0)
+               goto out;
+
        err = __cmd_script(session);
 
        perf_session__delete(session);