update loglevel printout
[lttng-tools.git] / lttng / commands / list.c
index 50dad9a2b4efc3aa57cb747c72820cea36773add..991ad28d6b01c7238fff29ee3cf912e651d1b826 100644 (file)
@@ -28,6 +28,7 @@
 
 static int opt_pid;
 static int opt_userspace;
+static char *opt_cmd_name;
 static int opt_kernel;
 static char *opt_channel;
 static int opt_domain;
@@ -38,6 +39,7 @@ const char *indent8 = "        ";
 
 enum {
        OPT_HELP = 1,
+       OPT_USERSPACE,
 };
 
 static struct lttng_handle *handle;
@@ -46,7 +48,7 @@ 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},
-       {"userspace", 'u', POPT_ARG_VAL, &opt_userspace, 1, 0, 0},
+       {"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0},
        {"pid",       'p', POPT_ARG_INT, &opt_pid, 0, 0, 0},
        {"channel",   'c', POPT_ARG_STRING, &opt_channel, 0, 0, 0},
        {"domain",    'd', POPT_ARG_VAL, &opt_domain, 1, 0, 0},
@@ -82,7 +84,6 @@ static void usage(FILE *ofp)
  * On success, return an allocated string pointer to the proc cmdline.
  * On error, return NULL.
  */
-#ifdef DISABLE
 static char *get_cmdline_by_pid(pid_t pid)
 {
        int ret;
@@ -107,7 +108,161 @@ static char *get_cmdline_by_pid(pid_t pid)
 end:
        return cmdline;
 }
-#endif /* DISABLE */
+
+static
+const char *active_string(int value)
+{
+       switch (value) {
+       case 0: return " [inactive]";
+       case 1: return " [active]";
+       case -1: return "";
+       default: return NULL;
+       }
+}
+
+static
+const char *enabled_string(int value)
+{
+       switch (value) {
+       case 0: return " [disabled]";
+       case 1: return " [enabled]";
+       case -1: return "";
+       default: return NULL;
+       }
+}
+
+static
+const char *loglevel_string_pre(const char *loglevel)
+{
+       if (loglevel[0] == '\0') {
+               return "";
+       } else {
+               return " (loglevel: ";
+       }
+}
+
+static
+const char *loglevel_string_post(const char *loglevel)
+{
+       if (loglevel[0] == '\0') {
+               return "";
+       } else {
+               return ")";
+       }
+}
+
+/*
+ * Pretty print single event.
+ */
+static void print_events(struct lttng_event *event)
+{
+       switch (event->type) {
+       case LTTNG_EVENT_TRACEPOINT:
+       {
+               char ll_value[LTTNG_SYMBOL_NAME_LEN] = "";
+
+               if (event->loglevel[0] != '\0') {
+                       int ret;
+
+                       ret = snprintf(ll_value, LTTNG_SYMBOL_NAME_LEN,
+                               " (%lld)", (long long) event->loglevel_value);
+                       if (ret < 0)
+                               ERR("snprintf error");
+               }
+               MSG("%s%s%s%s%s%s (type: tracepoint)%s", indent6,
+                               event->name,
+                               loglevel_string_pre(event->loglevel),
+                               event->loglevel,
+                               ll_value,
+                               loglevel_string_post(event->loglevel),
+                               enabled_string(event->enabled));
+               break;
+       }
+       case LTTNG_EVENT_PROBE:
+               MSG("%s%s (type: probe)%s", indent6,
+                               event->name, enabled_string(event->enabled));
+               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_FUNCTION:
+       case LTTNG_EVENT_FUNCTION_ENTRY:
+               MSG("%s%s (type: function)%s", indent6,
+                               event->name, enabled_string(event->enabled));
+               MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name);
+               break;
+       case LTTNG_EVENT_SYSCALL:
+               MSG("%s (type: syscall)%s", indent6,
+                               enabled_string(event->enabled));
+               break;
+       case LTTNG_EVENT_NOOP:
+               MSG("%s (type: noop)%s", indent6,
+                               enabled_string(event->enabled));
+               break;
+       case LTTNG_EVENT_TRACEPOINT_LOGLEVEL:
+               MSG("%s%s (type: tracepoint loglevel)%s", indent6,
+                       event->name,
+                       enabled_string(event->enabled));
+               break;
+       case LTTNG_EVENT_ALL:
+               /* We should never have "all" events in list. */
+               assert(0);
+               break;
+       }
+}
+
+/*
+ * Ask session daemon for all user space tracepoints available.
+ */
+static int list_ust_events(void)
+{
+       int i, size;
+       struct lttng_domain domain;
+       struct lttng_handle *handle;
+       struct lttng_event *event_list;
+       pid_t cur_pid = 0;
+
+       DBG("Getting UST tracing events");
+
+       domain.type = LTTNG_DOMAIN_UST;
+
+       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 UST events");
+               return size;
+       }
+
+       MSG("UST events:\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;
+                       MSG("\nPID: %d - Name: %s", cur_pid, get_cmdline_by_pid(cur_pid));
+               }
+               print_events(&event_list[i]);
+       }
+
+       MSG("");
+
+       free(event_list);
+
+       return CMD_SUCCESS;
+
+error:
+       return -1;
+}
 
 /*
  * Ask for all trace events in the kernel and pretty print them.
@@ -115,9 +270,18 @@ end:
 static int list_kernel_events(void)
 {
        int i, size;
+       struct lttng_domain domain;
+       struct lttng_handle *handle;
        struct lttng_event *event_list;
 
-       DBG("Getting all tracing events");
+       DBG("Getting kernel tracing events");
+
+       domain.type = LTTNG_DOMAIN_KERNEL;
+
+       handle = lttng_create_handle(NULL, &domain);
+       if (handle == NULL) {
+               goto error;
+       }
 
        size = lttng_list_tracepoints(handle, &event_list);
        if (size < 0) {
@@ -128,12 +292,17 @@ static int list_kernel_events(void)
        MSG("Kernel events:\n-------------");
 
        for (i = 0; i < size; i++) {
-               MSG("  %s", event_list[i].name);
+               print_events(&event_list[i]);
        }
 
+       MSG("");
+
        free(event_list);
 
        return CMD_SUCCESS;
+
+error:
+       return -1;
 }
 
 /*
@@ -152,45 +321,12 @@ static int list_events(const char *channel_name)
 
        MSG("\n%sEvents:", indent4);
        if (count == 0) {
-               MSG("%sNone", indent6);
+               MSG("%sNone\n", indent6);
                goto end;
        }
 
        for (i = 0; i < count; i++) {
-               switch (events[i].type) {
-                       case LTTNG_EVENT_TRACEPOINT:
-                               MSG("%s%s (type: tracepoint) [enabled: %d]", indent6,
-                                               events[i].name, events[i].enabled);
-                               break;
-                       case LTTNG_EVENT_PROBE:
-                               MSG("%s%s (type: probe) [enabled: %d]", indent6,
-                                               events[i].name, events[i].enabled);
-                               if (events[i].attr.probe.addr != 0) {
-                                       MSG("%saddr: 0x%" PRIx64, indent8, events[i].attr.probe.addr);
-                               } else {
-                                       MSG("%soffset: 0x%" PRIx64, indent8, events[i].attr.probe.offset);
-                                       MSG("%ssymbol: %s", indent8, events[i].attr.probe.symbol_name);
-                               }
-                               break;
-                       case LTTNG_EVENT_FUNCTION:
-                       case LTTNG_EVENT_FUNCTION_ENTRY:
-                               MSG("%s%s (type: function) [enabled: %d]", indent6,
-                                               events[i].name, events[i].enabled);
-                               MSG("%ssymbol: \"%s\"", indent8, events[i].attr.ftrace.symbol_name);
-                               break;
-                       case LTTNG_EVENT_SYSCALL:
-                               MSG("%s (type: syscall) [enabled: %d]", indent6,
-                                               events[i].enabled);
-                               break;
-                       case LTTNG_EVENT_NOOP:
-                               MSG("%s (type: noop) [enabled: %d]", indent6,
-                                               events[i].enabled);
-                               break;
-                       case LTTNG_EVENT_ALL:
-                               /* We should never have "all" events in list. */
-                               assert(0);
-                               break;
-               }
+               print_events(&events[i]);
        }
 
        MSG("");
@@ -210,7 +346,7 @@ error:
  */
 static void print_channel(struct lttng_channel *channel)
 {
-       MSG("- %s (enabled: %d):\n", channel->name, channel->enabled);
+       MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled));
 
        MSG("%sAttributes:", indent4);
        MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite);
@@ -239,7 +375,7 @@ static int list_channels(const char *channel_name)
        unsigned int chan_found = 0;
        struct lttng_channel *channels = NULL;
 
-       DBG("Listing channel(s) (%s)", channel_name);
+       DBG("Listing channel(s) (%s)", channel_name ? : "<all>");
 
        count = lttng_list_channels(handle, &channels);
        if (count < 0) {
@@ -313,14 +449,14 @@ 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:", session_name);
+                               MSG("Tracing session %s:%s", session_name, active_string(sessions[i].enabled));
                                MSG("%sTrace path: %s\n", indent4, sessions[i].path);
                                break;
                        }
                        continue;
                }
 
-               MSG("  %d) %s (%s)", i + 1, sessions[i].name, sessions[i].path);
+               MSG("  %d) %s (%s)%s", i + 1, sessions[i].name, sessions[i].path, active_string(sessions[i].enabled));
 
                if (session_found) {
                        break;
@@ -366,6 +502,10 @@ static int list_domains(void)
                switch (domains[i].type) {
                case LTTNG_DOMAIN_KERNEL:
                        MSG("  - Kernel");
+                       break;
+               case LTTNG_DOMAIN_UST:
+                       MSG("  - UST global");
+                       break;
                default:
                        break;
                }
@@ -384,6 +524,7 @@ error:
 int cmd_list(int argc, const char **argv)
 {
        int opt, i, ret = CMD_SUCCESS;
+       int nb_domain;
        const char *session_name;
        static poptContext pc;
        struct lttng_domain domain;
@@ -402,6 +543,9 @@ int cmd_list(int argc, const char **argv)
                case OPT_HELP:
                        usage(stderr);
                        goto end;
+               case OPT_USERSPACE:
+                       opt_userspace = 1;
+                       break;
                default:
                        usage(stderr);
                        ret = CMD_UNDEFINED;
@@ -409,16 +553,19 @@ int cmd_list(int argc, const char **argv)
                }
        }
 
-       if (opt_userspace || opt_pid != 0) {
-               MSG("*** Userspace tracing not implemented ***\n");
+       if (opt_pid != 0) {
+               MSG("*** Userspace tracing not implemented for PID ***\n");
        }
 
        /* Get session name (trailing argument) */
        session_name = poptGetArg(pc);
-       DBG("Session name: %s", session_name);
+       DBG2("Session name: %s", session_name);
 
        if (opt_kernel) {
                domain.type = LTTNG_DOMAIN_KERNEL;
+       } else if (opt_userspace) {
+               DBG2("Listing userspace global domain");
+               domain.type = LTTNG_DOMAIN_UST;
        }
 
        handle = lttng_create_handle(session_name, &domain);
@@ -427,13 +574,20 @@ int cmd_list(int argc, const char **argv)
        }
 
        if (session_name == NULL) {
+               if (!opt_kernel && !opt_userspace) {
+                       ret = list_sessions(NULL);
+                       if (ret < 0) {
+                               goto end;
+                       }
+               }
                if (opt_kernel) {
                        ret = list_kernel_events();
                        if (ret < 0) {
                                goto end;
                        }
-               } else {
-                       ret = list_sessions(NULL);
+               }
+               if (opt_userspace) {
+                       ret = list_ust_events();
                        if (ret < 0) {
                                goto end;
                        }
@@ -457,20 +611,22 @@ int cmd_list(int argc, const char **argv)
                        if (ret < 0) {
                                goto end;
                        }
-               } else if (opt_userspace) {
-                       /* TODO: Userspace domain */
                } else {
                        /* We want all domain(s) */
-                       ret = lttng_list_domains(handle, &domains);
-                       if (ret < 0) {
+                       nb_domain = lttng_list_domains(handle, &domains);
+                       if (nb_domain < 0) {
+                               ret = nb_domain;
                                goto end;
                        }
 
-                       for (i = 0; i < ret; i++) {
+                       for (i = 0; i < nb_domain; i++) {
                                switch (domains[i].type) {
                                case LTTNG_DOMAIN_KERNEL:
                                        MSG("=== Domain: Kernel ===\n");
                                        break;
+                               case LTTNG_DOMAIN_UST:
+                                       MSG("=== Domain: UST global ===\n");
+                                       break;
                                default:
                                        MSG("=== Domain: Unimplemented ===\n");
                                        break;
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