When listing events, show exclusions if they exist
[lttng-tools.git] / src / bin / lttng / commands / list.c
index 50d6114c3d166be10483b71974b6418cf6152494..6a54279f912fa9984d7419a06fbe64c6f64fabaf 100644 (file)
 
 static int opt_userspace;
 static int opt_kernel;
+static int opt_jul;
 static char *opt_channel;
 static int opt_domain;
+static int opt_fields;
 #if 0
 /* Not implemented yet */
 static char *opt_cmd_name;
@@ -51,6 +53,7 @@ static struct poptOption long_options[] = {
        /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
        {"help",      'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
        {"kernel",    'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0},
+       {"jul",       'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0},
 #if 0
        /* Not implemented yet */
        {"userspace",      'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0},
@@ -60,6 +63,7 @@ static struct poptOption long_options[] = {
 #endif
        {"channel",   'c', POPT_ARG_STRING, &opt_channel, 0, 0, 0},
        {"domain",    'd', POPT_ARG_VAL, &opt_domain, 1, 0, 0},
+       {"fields",    'f', POPT_ARG_VAL, &opt_fields, 1, 0, 0},
        {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL},
        {0, 0, 0, 0, 0, 0, 0}
 };
@@ -69,7 +73,7 @@ static struct poptOption long_options[] = {
  */
 static void usage(FILE *ofp)
 {
-       fprintf(ofp, "usage: lttng list [OPTIONS] [SESSION [<OPTIONS>]]\n");
+       fprintf(ofp, "usage: lttng list [OPTIONS] [SESSION [SESSION OPTIONS]]\n");
        fprintf(ofp, "\n");
        fprintf(ofp, "With no arguments, list available tracing session(s)\n");
        fprintf(ofp, "\n");
@@ -80,6 +84,8 @@ static void usage(FILE *ofp)
        fprintf(ofp, "      --list-options      Simple listing of options\n");
        fprintf(ofp, "  -k, --kernel            Select kernel domain\n");
        fprintf(ofp, "  -u, --userspace         Select user-space domain.\n");
+       fprintf(ofp, "  -j, --jul               Apply for Java application using JUL\n");
+       fprintf(ofp, "  -f, --fields            List event fields.\n");
 #if 0
        fprintf(ofp, "  -p, --pid PID           List user-space events by PID\n");
 #endif
@@ -125,13 +131,23 @@ static
 const char *active_string(int value)
 {
        switch (value) {
-       case 0: return " [inactive]";
-       case 1: return " [active]";
+       case 0: return "inactive";
+       case 1: return "active";
        case -1: return "";
        default: return NULL;
        }
 }
 
+static const char *snapshot_string(int value)
+{
+       switch (value) {
+       case 1:
+               return " snapshot";
+       default:
+               return "";
+       }
+}
+
 static
 const char *enabled_string(int value)
 {
@@ -143,6 +159,24 @@ const char *enabled_string(int value)
        }
 }
 
+static
+const char *filter_string(int value)
+{
+       switch (value) {
+       case 1: return " [with filter]";
+       default: return "";
+       }
+}
+
+static
+const char *exclusion_string(int value)
+{
+       switch (value) {
+       case 1: return " [has exclusions]";
+       default: return "";
+       }
+}
+
 static const char *loglevel_string(int value)
 {
        switch (value) {
@@ -192,23 +226,39 @@ static void print_events(struct lttng_event *event)
        case LTTNG_EVENT_TRACEPOINT:
        {
                if (event->loglevel != -1) {
-                       MSG("%s%s (loglevel: %s (%d)) (type: tracepoint)%s",
+                       MSG("%s%s (loglevel: %s (%d)) (type: tracepoint)%s%s%s",
                                indent6,
                                event->name,
                                loglevel_string(event->loglevel),
                                event->loglevel,
-                               enabled_string(event->enabled));
+                               enabled_string(event->enabled),
+                               exclusion_string(event->exclusion),
+                               filter_string(event->filter));
                } else {
-                       MSG("%s%s (type: tracepoint)%s",
+                       MSG("%s%s (type: tracepoint)%s%s%s",
                                indent6,
                                event->name,
-                               enabled_string(event->enabled));
+                               enabled_string(event->enabled),
+                               exclusion_string(event->exclusion),
+                               filter_string(event->filter));
                }
                break;
        }
+       case LTTNG_EVENT_FUNCTION:
+               MSG("%s%s (type: function)%s%s", indent6,
+                               event->name, enabled_string(event->enabled),
+                               filter_string(event->filter));
+               if (event->attr.probe.addr != 0) {
+                       MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr);
+               } else {
+                       MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset);
+                       MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name);
+               }
+               break;
        case LTTNG_EVENT_PROBE:
-               MSG("%s%s (type: probe)%s", indent6,
-                               event->name, enabled_string(event->enabled));
+               MSG("%s%s (type: probe)%s%s", indent6,
+                               event->name, enabled_string(event->enabled),
+                               filter_string(event->filter));
                if (event->attr.probe.addr != 0) {
                        MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr);
                } else {
@@ -216,19 +266,21 @@ static void print_events(struct lttng_event *event)
                        MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name);
                }
                break;
-       case LTTNG_EVENT_FUNCTION:
        case LTTNG_EVENT_FUNCTION_ENTRY:
-               MSG("%s%s (type: function)%s", indent6,
-                               event->name, enabled_string(event->enabled));
+               MSG("%s%s (type: function)%s%s", indent6,
+                               event->name, enabled_string(event->enabled),
+                               filter_string(event->filter));
                MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name);
                break;
        case LTTNG_EVENT_SYSCALL:
-               MSG("%ssyscalls (type: syscall)%s", indent6,
-                               enabled_string(event->enabled));
+               MSG("%ssyscalls (type: syscall)%s%s", indent6,
+                               enabled_string(event->enabled),
+                               filter_string(event->filter));
                break;
        case LTTNG_EVENT_NOOP:
-               MSG("%s (type: noop)%s", indent6,
-                               enabled_string(event->enabled));
+               MSG("%s (type: noop)%s%s", indent6,
+                               enabled_string(event->enabled),
+                               filter_string(event->filter));
                break;
        case LTTNG_EVENT_ALL:
                /* We should never have "all" events in list. */
@@ -237,6 +289,89 @@ static void print_events(struct lttng_event *event)
        }
 }
 
+static const char *field_type(struct lttng_event_field *field)
+{
+       switch(field->type) {
+       case LTTNG_EVENT_FIELD_INTEGER:
+               return "integer";
+       case LTTNG_EVENT_FIELD_ENUM:
+               return "enum";
+       case LTTNG_EVENT_FIELD_FLOAT:
+               return "float";
+       case LTTNG_EVENT_FIELD_STRING:
+               return "string";
+       case LTTNG_EVENT_FIELD_OTHER:
+       default:        /* fall-through */
+               return "unknown";
+       }
+}
+
+/*
+ * Pretty print single event fields.
+ */
+static void print_event_field(struct lttng_event_field *field)
+{
+       if (!field->field_name[0]) {
+               return;
+       }
+       MSG("%sfield: %s (%s)%s", indent8, field->field_name,
+               field_type(field), field->nowrite ? " [no write]" : "");
+}
+
+static int list_jul_events(void)
+{
+       int i, size;
+       struct lttng_domain domain;
+       struct lttng_handle *handle;
+       struct lttng_event *event_list;
+       pid_t cur_pid = 0;
+       char *cmdline = NULL;
+
+       DBG("Getting JUL tracing events");
+
+       memset(&domain, 0, sizeof(domain));
+       domain.type = LTTNG_DOMAIN_JUL;
+
+       handle = lttng_create_handle(NULL, &domain);
+       if (handle == NULL) {
+               goto error;
+       }
+
+       size = lttng_list_tracepoints(handle, &event_list);
+       if (size < 0) {
+               ERR("Unable to list JUL events: %s", lttng_strerror(size));
+               lttng_destroy_handle(handle);
+               return size;
+       }
+
+       MSG("JUL events (Logger name):\n-------------------------");
+
+       if (size == 0) {
+               MSG("None");
+       }
+
+       for (i = 0; i < size; i++) {
+               if (cur_pid != event_list[i].pid) {
+                       cur_pid = event_list[i].pid;
+                       cmdline = get_cmdline_by_pid(cur_pid);
+                       MSG("\nPID: %d - Name: %s", cur_pid, cmdline);
+                       free(cmdline);
+               }
+               MSG("%s- %s", indent6, event_list[i].name);
+       }
+
+       MSG("");
+
+       free(event_list);
+       lttng_destroy_handle(handle);
+
+       return CMD_SUCCESS;
+
+error:
+       lttng_destroy_handle(handle);
+       return -1;
+}
+
 /*
  * Ask session daemon for all user space tracepoints available.
  */
@@ -247,6 +382,7 @@ static int list_ust_events(void)
        struct lttng_handle *handle;
        struct lttng_event *event_list;
        pid_t cur_pid = 0;
+       char *cmdline = NULL;
 
        memset(&domain, 0, sizeof(domain));
 
@@ -261,7 +397,7 @@ static int list_ust_events(void)
 
        size = lttng_list_tracepoints(handle, &event_list);
        if (size < 0) {
-               ERR("Unable to list UST events");
+               ERR("Unable to list UST events: %s", lttng_strerror(size));
                lttng_destroy_handle(handle);
                return size;
        }
@@ -275,7 +411,9 @@ static int list_ust_events(void)
        for (i = 0; i < size; i++) {
                if (cur_pid != event_list[i].pid) {
                        cur_pid = event_list[i].pid;
-                       MSG("\nPID: %d - Name: %s", cur_pid, get_cmdline_by_pid(cur_pid));
+                       cmdline = get_cmdline_by_pid(cur_pid);
+                       MSG("\nPID: %d - Name: %s", cur_pid, cmdline);
+                       free(cmdline);
                }
                print_events(&event_list[i]);
        }
@@ -292,6 +430,72 @@ error:
        return -1;
 }
 
+/*
+ * Ask session daemon for all user space tracepoint fields available.
+ */
+static int list_ust_event_fields(void)
+{
+       int i, size;
+       struct lttng_domain domain;
+       struct lttng_handle *handle;
+       struct lttng_event_field *event_field_list;
+       pid_t cur_pid = 0;
+       char *cmdline = NULL;
+
+       struct lttng_event cur_event;
+
+       memset(&domain, 0, sizeof(domain));
+       memset(&cur_event, 0, sizeof(cur_event));
+
+       DBG("Getting UST tracing event fields");
+
+       domain.type = LTTNG_DOMAIN_UST;
+
+       handle = lttng_create_handle(NULL, &domain);
+       if (handle == NULL) {
+               goto error;
+       }
+
+       size = lttng_list_tracepoint_fields(handle, &event_field_list);
+       if (size < 0) {
+               ERR("Unable to list UST event fields: %s", lttng_strerror(size));
+               lttng_destroy_handle(handle);
+               return size;
+       }
+
+       MSG("UST events:\n-------------");
+
+       if (size == 0) {
+               MSG("None");
+       }
+
+       for (i = 0; i < size; i++) {
+               if (cur_pid != event_field_list[i].event.pid) {
+                       cur_pid = event_field_list[i].event.pid;
+                       cmdline = get_cmdline_by_pid(cur_pid);
+                       MSG("\nPID: %d - Name: %s", cur_pid, cmdline);
+                       free(cmdline);
+               }
+               if (strcmp(cur_event.name, event_field_list[i].event.name) != 0) {
+                       print_events(&event_field_list[i].event);
+                       memcpy(&cur_event, &event_field_list[i].event,
+                               sizeof(cur_event));
+               }
+               print_event_field(&event_field_list[i]);
+       }
+
+       MSG("");
+
+       free(event_field_list);
+       lttng_destroy_handle(handle);
+
+       return CMD_SUCCESS;
+
+error:
+       lttng_destroy_handle(handle);
+       return -1;
+}
+
 /*
  * Ask for all trace events in the kernel and pretty print them.
  */
@@ -315,7 +519,7 @@ static int list_kernel_events(void)
 
        size = lttng_list_tracepoints(handle, &event_list);
        if (size < 0) {
-               ERR("Unable to list kernel events");
+               ERR("Unable to list kernel events: %s", lttng_strerror(size));
                lttng_destroy_handle(handle);
                return size;
        }
@@ -338,6 +542,44 @@ error:
        return -1;
 }
 
+/*
+ * List JUL events for a specific session using the handle.
+ *
+ * Return CMD_SUCCESS on success else a negative value.
+ */
+static int list_session_jul_events(void)
+{
+       int ret, count, i;
+       struct lttng_event *events = NULL;
+
+       count = lttng_list_events(handle, "", &events);
+       if (count < 0) {
+               ret = count;
+               ERR("%s", lttng_strerror(ret));
+               goto error;
+       }
+
+       MSG("Events (Logger name):\n---------------------");
+       if (count == 0) {
+               MSG("%sNone\n", indent6);
+               goto end;
+       }
+
+       for (i = 0; i < count; i++) {
+               MSG("%s- %s%s", indent4, events[i].name,
+                               enabled_string(events[i].enabled));
+       }
+
+       MSG("");
+
+end:
+       free(events);
+       ret = CMD_SUCCESS;
+
+error:
+       return ret;
+}
+
 /*
  * List events of channel of session and domain.
  */
@@ -349,6 +591,7 @@ static int list_events(const char *channel_name)
        count = lttng_list_events(handle, channel_name, &events);
        if (count < 0) {
                ret = count;
+               ERR("%s", lttng_strerror(ret));
                goto error;
        }
 
@@ -365,9 +608,7 @@ static int list_events(const char *channel_name)
        MSG("");
 
 end:
-       if (events) {
-               free(events);
-       }
+       free(events);
        ret = CMD_SUCCESS;
 
 error:
@@ -412,11 +653,18 @@ static int list_channels(const char *channel_name)
 
        count = lttng_list_channels(handle, &channels);
        if (count < 0) {
-               ret = count;
+               switch (-count) {
+               case LTTNG_ERR_KERN_CHAN_NOT_FOUND:
+                       ret = CMD_SUCCESS;
+                       WARN("No kernel channel");
+                       break;
+               default:
+                       /* We had a real error */
+                       ret = count;
+                       ERR("%s", lttng_strerror(ret));
+                       break;
+               }
                goto error_channels;
-       } else if (count == 0) {
-               ERR("Channel %s not found", channel_name);
-               goto error;
        }
 
        if (channel_name == NULL) {
@@ -436,7 +684,7 @@ static int list_channels(const char *channel_name)
                /* Listing events per channel */
                ret = list_events(channels[i].name);
                if (ret < 0) {
-                       MSG("%s", lttng_strerror(ret));
+                       ERR("%s", lttng_strerror(ret));
                }
 
                if (chan_found) {
@@ -473,6 +721,7 @@ static int list_sessions(const char *session_name)
        DBG("Session count %d", count);
        if (count < 0) {
                ret = count;
+               ERR("%s", lttng_strerror(ret));
                goto error;
        } else if (count == 0) {
                MSG("Currently no available tracing session");
@@ -487,18 +736,16 @@ static int list_sessions(const char *session_name)
                if (session_name != NULL) {
                        if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) {
                                session_found = 1;
-                               MSG("Tracing session %s:%s", session_name, active_string(sessions[i].enabled));
+                               MSG("Tracing session %s: [%s%s]", session_name,
+                                               active_string(sessions[i].enabled),
+                                               snapshot_string(sessions[i].snapshot_mode));
                                MSG("%sTrace path: %s\n", indent4, sessions[i].path);
                                break;
                        }
-                       continue;
-               }
-
-               MSG("  %d) %s (%s)%s", i + 1, sessions[i].name, sessions[i].path,
-                               active_string(sessions[i].enabled));
-
-               if (session_found) {
-                       break;
+               } else {
+                       MSG("  %d) %s (%s) [%s%s]", i + 1, sessions[i].name, sessions[i].path,
+                                       active_string(sessions[i].enabled),
+                                       snapshot_string(sessions[i].snapshot_mode));
                }
        }
 
@@ -534,6 +781,7 @@ static int list_domains(const char *session_name)
        count = lttng_list_domains(session_name, &domains);
        if (count < 0) {
                ret = count;
+               ERR("%s", lttng_strerror(ret));
                goto error;
        } else if (count == 0) {
                MSG("  None");
@@ -548,6 +796,9 @@ static int list_domains(const char *session_name)
                case LTTNG_DOMAIN_UST:
                        MSG("  - UST global");
                        break;
+               case LTTNG_DOMAIN_JUL:
+                       MSG("  - JUL (Java Util Logging)");
+                       break;
                default:
                        break;
                }
@@ -565,8 +816,7 @@ error:
  */
 int cmd_list(int argc, const char **argv)
 {
-       int opt, i, ret = CMD_SUCCESS;
-       int nb_domain;
+       int opt, ret = CMD_SUCCESS;
        const char *session_name;
        static poptContext pc;
        struct lttng_domain domain;
@@ -610,9 +860,12 @@ int cmd_list(int argc, const char **argv)
        } else if (opt_userspace) {
                DBG2("Listing userspace global domain");
                domain.type = LTTNG_DOMAIN_UST;
+       } else if (opt_jul) {
+               DBG2("Listing JUL domain");
+               domain.type = LTTNG_DOMAIN_JUL;
        }
 
-       if (opt_kernel || opt_userspace) {
+       if (opt_kernel || opt_userspace || opt_jul) {
                handle = lttng_create_handle(session_name, &domain);
                if (handle == NULL) {
                        ret = CMD_FATAL;
@@ -621,7 +874,7 @@ int cmd_list(int argc, const char **argv)
        }
 
        if (session_name == NULL) {
-               if (!opt_kernel && !opt_userspace) {
+               if (!opt_kernel && !opt_userspace && !opt_jul) {
                        ret = list_sessions(NULL);
                        if (ret != 0) {
                                goto end;
@@ -630,12 +883,25 @@ int cmd_list(int argc, const char **argv)
                if (opt_kernel) {
                        ret = list_kernel_events();
                        if (ret < 0) {
+                               ret = CMD_ERROR;
                                goto end;
                        }
                }
                if (opt_userspace) {
-                       ret = list_ust_events();
+                       if (opt_fields) {
+                               ret = list_ust_event_fields();
+                       } else {
+                               ret = list_ust_events();
+                       }
+                       if (ret < 0) {
+                               ret = CMD_ERROR;
+                               goto end;
+                       }
+               }
+               if (opt_jul) {
+                       ret = list_jul_events();
                        if (ret < 0) {
+                               ret = CMD_ERROR;
                                goto end;
                        }
                }
@@ -659,10 +925,13 @@ int cmd_list(int argc, const char **argv)
                                goto end;
                        }
                } else {
+                       int i, nb_domain;
+
                        /* We want all domain(s) */
                        nb_domain = lttng_list_domains(session_name, &domains);
                        if (nb_domain < 0) {
                                ret = nb_domain;
+                               ERR("%s", lttng_strerror(ret));
                                goto end;
                        }
 
@@ -673,6 +942,12 @@ int cmd_list(int argc, const char **argv)
                                        break;
                                case LTTNG_DOMAIN_UST:
                                        MSG("=== Domain: UST global ===\n");
+                                       MSG("Buffer type: %s\n",
+                                                       domains[i].buf_type ==
+                                                       LTTNG_BUFFER_PER_PID ? "per PID" : "per UID");
+                                       break;
+                               case LTTNG_DOMAIN_JUL:
+                                       MSG("=== Domain: JUL (Java Util Logging) ===\n");
                                        break;
                                default:
                                        MSG("=== Domain: Unimplemented ===\n");
@@ -690,6 +965,14 @@ int cmd_list(int argc, const char **argv)
                                        goto end;
                                }
 
+                               if (domains[i].type == LTTNG_DOMAIN_JUL) {
+                                       ret = list_session_jul_events();
+                                       if (ret < 0) {
+                                               goto end;
+                                       }
+                                       continue;
+                               }
+
                                ret = list_channels(opt_channel);
                                if (ret < 0) {
                                        goto end;
@@ -699,9 +982,7 @@ int cmd_list(int argc, const char **argv)
        }
 
 end:
-       if (domains) {
-               free(domains);
-       }
+       free(domains);
        if (handle) {
                lttng_destroy_handle(handle);
        }
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