1 files changed, 229 insertions, 67 deletions

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index ac574ea23917..974f6d3f4e53 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -49,57 +49,169 @@ struct output_option {
 };
 
 /* default set to maintain compatibility with current format */
-static u64 output_fields[PERF_TYPE_MAX] = {
-        [PERF_TYPE_HARDWARE] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \
-                               PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \
-                               PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM,
-
-        [PERF_TYPE_SOFTWARE] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \
-                               PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \
-                               PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM,
-
-        [PERF_TYPE_TRACEPOINT] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \
-                                 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \
-                                 PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE,
+static struct {
+        bool user_set;
+        bool wildcard_set;
+        u64 fields;
+        u64 invalid_fields;
+} output[PERF_TYPE_MAX] = {
+
+        [PERF_TYPE_HARDWARE] = {
+                .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,
+        },
+
+        [PERF_TYPE_SOFTWARE] = {
+                .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,
+        },
+
+        [PERF_TYPE_TRACEPOINT] = {
+                .user_set = false,
+
+                .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
+                                  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;
+static bool output_set_by_user(void)
+{
+        int j;
+        for (j = 0; j < PERF_TYPE_MAX; ++j) {
+                if (output[j].user_set)
+                        return true;
+        }
+        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_fields[attr->type] & PERF_OUTPUT_##x)
+#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;
@@ -168,10 +280,7 @@ static void process_event(union perf_event *event __unused,
 {
         struct perf_event_attr *attr = &evsel->attr;
 
-        if (output_fields[attr->type] == 0)
-                return;
-
-        if (perf_session__check_attr(session, attr) < 0)
+        if (output[attr->type].fields == 0)
                 return;
 
         print_sample_start(sample, thread, attr);
@@ -451,6 +560,7 @@ static int parse_output_fields(const struct option *opt __used,
 {
         char *tok;
         int i, imax = sizeof(all_output_options) / sizeof(struct output_option);
+        int j;
         int rc = 0;
         char *str = strdup(arg);
         int type = -1;
@@ -458,52 +568,99 @@ static int parse_output_fields(const struct option *opt __used,
         if (!str)
                 return -ENOMEM;
 
-        tok = strtok(str, ":");
-        if (!tok) {
-                fprintf(stderr,
-                        "Invalid field string - not prepended with type.");
-                return -EINVAL;
-        }
-
-        /* first word should state which event type user
-         * is specifying the fields
+        /* first word can state for which event type the user is specifying
+         * the fields. If no type exists, the specified fields apply to all
+         * event types found in the file minus the invalid fields for a type.
          */
-        if (!strcmp(tok, "hw"))
-                type = PERF_TYPE_HARDWARE;
-        else if (!strcmp(tok, "sw"))
-                type = PERF_TYPE_SOFTWARE;
-        else if (!strcmp(tok, "trace"))
-                type = PERF_TYPE_TRACEPOINT;
-        else {
-                fprintf(stderr, "Invalid event type in field string.");
-                return -EINVAL;
+        tok = strchr(str, ':');
+        if (tok) {
+                *tok = '\0';
+                tok++;
+                if (!strcmp(str, "hw"))
+                        type = PERF_TYPE_HARDWARE;
+                else if (!strcmp(str, "sw"))
+                        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;
+                }
+
+                if (output[type].user_set)
+                        pr_warning("Overriding previous field request for %s events.\n",
+                                   event_type(type));
+
+                output[type].fields = 0;
+                output[type].user_set = true;
+                output[type].wildcard_set = false;
+
+        } else {
+                tok = str;
+                if (strlen(str) == 0) {
+                        fprintf(stderr,
+                                "Cannot set fields to 'none' for all event types.\n");
+                        rc = -EINVAL;
+                        goto out;
+                }
+
+                if (output_set_by_user())
+                        pr_warning("Overriding previous field request for all events.\n");
+
+                for (j = 0; j < PERF_TYPE_MAX; ++j) {
+                        output[j].fields = 0;
+                        output[j].user_set = true;
+                        output[j].wildcard_set = true;
+                }
         }
 
-        output_fields[type] = 0;
-        while (1) {
-                tok = strtok(NULL, ",");
-                if (!tok)
-                        break;
+        tok = strtok(tok, ",");
+        while (tok) {
                 for (i = 0; i < imax; ++i) {
-                        if (strcmp(tok, all_output_options[i].str) == 0) {
-                                output_fields[type] |= all_output_options[i].field;
+                        if (strcmp(tok, all_output_options[i].str) == 0)
                                 break;
-                        }
                 }
                 if (i == imax) {
-                        fprintf(stderr, "Invalid field requested.");
+                        fprintf(stderr, "Invalid field requested.\n");
                         rc = -EINVAL;
-                        break;
+                        goto out;
                 }
-        }
 
-        if (output_fields[type] == 0) {
-                pr_debug("No fields requested for %s type. "
-                         "Events will not be displayed\n", event_type(type));
+                if (type == -1) {
+                        /* add user option to all events types for
+                         * which it is valid
+                         */
+                        for (j = 0; j < PERF_TYPE_MAX; ++j) {
+                                if (output[j].invalid_fields & all_output_options[i].field) {
+                                        pr_warning("\'%s\' not valid for %s events. Ignoring.\n",
+                                                   all_output_options[i].str, event_type(j));
+                                } else
+                                        output[j].fields |= all_output_options[i].field;
+                        }
+                } else {
+                        if (output[type].invalid_fields & all_output_options[i].field) {
+                                fprintf(stderr, "\'%s\' not valid for %s events.\n",
+                                         all_output_options[i].str, event_type(type));
+
+                                rc = -EINVAL;
+                                goto out;
+                        }
+                        output[type].fields |= all_output_options[i].field;
+                }
+
+                tok = strtok(NULL, ",");
         }
 
-        output_set_by_user = true;
+        if (type >= 0) {
+                if (output[type].fields == 0) {
+                        pr_debug("No fields requested for %s type. "
+                                 "Events will not be displayed.\n", event_type(type));
+                }
+        }
 
+out:
         free(str);
         return rc;
 }
@@ -829,7 +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()
@@ -1020,7 +1177,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __used)
                 struct stat perf_stat;
                 int input;
 
-                if (output_set_by_user) {
+                if (output_set_by_user()) {
                         fprintf(stderr,
                                 "custom fields not supported for generated scripts");
                         return -1;
@@ -1060,6 +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);