Fix loglevel selection, implement loglevel help.
[lttng-tools.git] / src / bin / lttng / commands / enable_events.c
index 125c40fe0bd1c06d3e1409098b38bb5017ac8e88..c7b16488d8b38d69b8152840e27c55124d585be8 100644 (file)
@@ -102,17 +102,17 @@ static void usage(FILE *ofp)
        fprintf(ofp, "\n");
        fprintf(ofp, "  -h, --help               Show this help\n");
        fprintf(ofp, "      --list-options       Simple listing of options\n");
-       fprintf(ofp, "  -s, --session            Apply on session name\n");
-       fprintf(ofp, "  -c, --channel            Apply on this channel\n");
+       fprintf(ofp, "  -s, --session            Apply to session name\n");
+       fprintf(ofp, "  -c, --channel            Apply to this channel\n");
        fprintf(ofp, "  -a, --all                Enable all tracepoints\n");
        fprintf(ofp, "  -k, --kernel             Apply for the kernel tracer\n");
 #if 0
-       fprintf(ofp, "  -u, --userspace [CMD]    Apply for the user-space tracer\n");
+       fprintf(ofp, "  -u, --userspace [CMD]    Apply to the user-space tracer\n");
        fprintf(ofp, "                           If no CMD, the domain used is UST global\n");
        fprintf(ofp, "                           or else the domain is UST EXEC_NAME\n");
        fprintf(ofp, "  -p, --pid PID            If -u, apply to specific PID (domain: UST PID)\n");
 #else
-       fprintf(ofp, "  -u, --userspace          Apply for the user-space tracer\n");
+       fprintf(ofp, "  -u, --userspace          Apply to the user-space tracer\n");
 #endif
        fprintf(ofp, "\n");
        fprintf(ofp, "Event options:\n");
@@ -122,10 +122,6 @@ static void usage(FILE *ofp)
        fprintf(ofp, "                             e.g.:\n");
        fprintf(ofp, "                               \"*\"\n");
        fprintf(ofp, "                               \"app_component:na*\"\n");
-       fprintf(ofp, "    --loglevel name\n");
-       fprintf(ofp, "                           Tracepoint loglevel (range: 0 to loglevel)\n");
-       fprintf(ofp, "    --loglevel-only name\n");
-       fprintf(ofp, "                           Tracepoint loglevel (only this loglevel)\n");
        fprintf(ofp, "    --probe [addr | symbol | symbol+offset]\n");
        fprintf(ofp, "                           Dynamic probe.\n");
        fprintf(ofp, "                           Addr and offset can be octal (0NNN...),\n");
@@ -140,6 +136,31 @@ static void usage(FILE *ofp)
 #endif
        fprintf(ofp, "    --syscall              System call event\n");
        fprintf(ofp, "\n");
+       fprintf(ofp, "    --loglevel name\n");
+       fprintf(ofp, "                           Tracepoint loglevel range from 0 to loglevel\n");
+       fprintf(ofp, "    --loglevel-only name\n");
+       fprintf(ofp, "                           Tracepoint loglevel (only this loglevel)\n");
+       fprintf(ofp, "\n");
+       fprintf(ofp, "                    The loglevel or loglevel-only options should be combined\n");
+       fprintf(ofp, "                    with a tracepoint name (or tracepoint wildcard).\n");
+       fprintf(ofp, "                    Available loglevels: (higher value means more verbose)\n");
+       fprintf(ofp, "                               TRACE_EMERG    = 0\n");
+       fprintf(ofp, "                               TRACE_ALERT    = 1\n");
+       fprintf(ofp, "                               TRACE_CRIT     = 2\n");
+       fprintf(ofp, "                               TRACE_ERR      = 3\n");
+       fprintf(ofp, "                               TRACE_WARNING  = 4\n");
+       fprintf(ofp, "                               TRACE_NOTICE   = 5\n");
+       fprintf(ofp, "                               TRACE_INFO     = 6\n");
+       fprintf(ofp, "                               TRACE_SYSTEM   = 7\n");
+       fprintf(ofp, "                               TRACE_PROCESS  = 8\n");
+       fprintf(ofp, "                               TRACE_MODULE   = 9\n");
+       fprintf(ofp, "                               TRACE_UNIT     = 10\n");
+       fprintf(ofp, "                               TRACE_CLASS    = 11\n");
+       fprintf(ofp, "                               TRACE_OBJECT   = 12\n");
+       fprintf(ofp, "                               TRACE_FUNCTION = 13\n");
+       fprintf(ofp, "                               TRACE_PRINTF   = 14\n");
+       fprintf(ofp, "                               TRACE_DEBUG    = 15\n");
+       fprintf(ofp, "\n");
 }
 
 /*
@@ -209,6 +230,66 @@ end:
        return ret;
 }
 
+/*
+ * Maps this from string to value
+ *
+ * TRACE_EMERG = 0,
+ * TRACE_ALERT = 1,
+ * TRACE_CRIT = 2,
+ * TRACE_ERR = 3,
+ * TRACE_WARNING = 4,
+ * TRACE_NOTICE = 5,
+ * TRACE_INFO = 6,
+ * TRACE_SYSTEM = 7,
+ * TRACE_PROCESS = 8,
+ * TRACE_MODULE = 9,
+ * TRACE_UNIT = 10,
+ * TRACE_CLASS = 11,
+ * TRACE_OBJECT = 12,
+ * TRACE_FUNCTION = 13,
+ * TRACE_PRINTF = 14,
+ * TRACE_DEBUG = 15,
+ */
+static
+int loglevel_str_to_value(const char *str)
+{
+       if (!strcmp(str, "TRACE_EMERG")) {
+               return 0;
+       } else if (!strcmp(str, "TRACE_ALERT")) {
+               return 1;
+       } else if (!strcmp(str, "TRACE_CRIT")) {
+               return 2;
+       } else if (!strcmp(str, "TRACE_ERR")) {
+               return 3;
+       } else if (!strcmp(str, "TRACE_WARNING")) {
+               return 4;
+       } else if (!strcmp(str, "TRACE_NOTICE")) {
+               return 5;
+       } else if (!strcmp(str, "TRACE_INFO")) {
+               return 6;
+       } else if (!strcmp(str, "TRACE_SYSTEM")) {
+               return 7;
+       } else if (!strcmp(str, "TRACE_PROCESS")) {
+               return 8;
+       } else if (!strcmp(str, "TRACE_MODULE")) {
+               return 9;
+       } else if (!strcmp(str, "TRACE_UNIT")) {
+               return 10;
+       } else if (!strcmp(str, "TRACE_CLASS")) {
+               return 11;
+       } else if (!strcmp(str, "TRACE_OBJECT")) {
+               return 12;
+       } else if (!strcmp(str, "TRACE_FUNCTION")) {
+               return 13;
+       } else if (!strcmp(str, "TRACE_PRINTF")) {
+               return 14;
+       } else if (!strcmp(str, "TRACE_DEBUG")) {
+               return 15;
+       } else {
+               return -1;
+       }
+}
+
 /*
  * Enabling event using the lttng API.
  */
@@ -251,9 +332,20 @@ static int enable_events(char *session_name)
                if (opt_kernel) {
                        ev.type = opt_event_type;
                        ev.name[0] = '\0';
+                       /* kernel loglevels not implemented */
+                       ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
                } else {
                        ev.type = LTTNG_EVENT_TRACEPOINT;
                        strcpy(ev.name, "*");
+                       ev.loglevel_type = opt_loglevel_type;
+                       if (opt_loglevel) {
+                               ev.loglevel = loglevel_str_to_value(opt_loglevel);
+                               if (ev.loglevel == -1) {
+                                       ERR("Unknown loglevel %s", opt_loglevel);
+                                       ret = -1;
+                                       goto error;
+                               }
+                       }
                }
 
                ret = lttng_enable_event(handle, &ev, channel_name);
@@ -263,8 +355,9 @@ static int enable_events(char *session_name)
 
                switch (opt_event_type) {
                case LTTNG_EVENT_TRACEPOINT:
-                       MSG("All %s tracepoints are enabled in channel %s",
-                               opt_kernel ? "kernel" : "UST", channel_name);
+                       MSG("All %s tracepoints are enabled in channel %s for loglevel %s",
+                               opt_kernel ? "kernel" : "UST", channel_name,
+                               opt_loglevel ? : "<all>");
                        break;
                case LTTNG_EVENT_SYSCALL:
                        if (opt_kernel) {
@@ -273,8 +366,9 @@ static int enable_events(char *session_name)
                        }
                        break;
                case LTTNG_EVENT_ALL:
-                       MSG("All %s events are enabled in channel %s",
-                               opt_kernel ? "kernel" : "UST", channel_name);
+                       MSG("All %s events are enabled in channel %s for loglevel %s",
+                               opt_kernel ? "kernel" : "UST", channel_name,
+                               opt_loglevel ? : "<all>");
                        break;
                default:
                        /*
@@ -341,8 +435,7 @@ static int enable_events(char *session_name)
                        }
 
                        /* kernel loglevels not implemented */
-                       ev.loglevel_type = opt_loglevel_type;
-                       ev.loglevel[0] = '\0';
+                       ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
                } else if (opt_userspace) {             /* User-space tracer action */
 #if 0
                        if (opt_cmd_name != NULL || opt_pid) {
@@ -352,8 +445,8 @@ static int enable_events(char *session_name)
                        }
 #endif
 
-                       DBG("Enabling UST event %s for channel %s", event_name,
-                                       channel_name);
+                       DBG("Enabling UST event %s for channel %s, loglevel %s", event_name,
+                                       channel_name, opt_loglevel ? : "<all>");
 
                        switch (opt_event_type) {
                        case LTTNG_EVENT_ALL:   /* Default behavior is tracepoint */
@@ -376,13 +469,16 @@ static int enable_events(char *session_name)
 
                        ev.loglevel_type = opt_loglevel_type;
                        if (opt_loglevel) {
-                               strncpy(ev.loglevel, opt_loglevel, LTTNG_SYMBOL_NAME_LEN);
-                               ev.loglevel[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
-                       } else {
-                               ev.loglevel[0] = '\0';
+                               ev.loglevel = loglevel_str_to_value(opt_loglevel);
+                               if (ev.loglevel == -1) {
+                                       ERR("Unknown loglevel %s", opt_loglevel);
+                                       ret = -1;
+                                       goto error;
+                               }
                        }
                } else {
                        ERR("Please specify a tracer (-k/--kernel or -u/--userspace)");
+                       ret = CMD_ERROR;
                        goto error;
                }
 
@@ -452,11 +548,11 @@ int cmd_enable_events(int argc, const char **argv)
                        opt_userspace = 1;
                        break;
                case OPT_LOGLEVEL:
-                       opt_loglevel_type = LTTNG_EVENT_LOGLEVEL;
+                       opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_RANGE;
                        opt_loglevel = poptGetOptArg(pc);
                        break;
                case OPT_LOGLEVEL_ONLY:
-                       opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_ONLY;
+                       opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_SINGLE;
                        opt_loglevel = poptGetOptArg(pc);
                        break;
                case OPT_LIST_OPTIONS:
This page took 0.025645 seconds and 4 git commands to generate.