Fix loglevel selection, implement loglevel help.

Some loglevel information was not passed across the chain.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/src/bin/lttng-sessiond/trace-ust.c b/src/bin/lttng-sessiond/trace-ust.c
index 7f422a99e2e24658f1ea1c1d9a27c1e26463723e..236e7685b5900cf14362af6a1e8202911604f28b 100644 (file)
--- a/src/bin/lttng-sessiond/trace-ust.c
+++ b/src/bin/lttng-sessiond/trace-ust.c
@@ -245,7 +245,9 @@ struct ltt_ust_event *trace_ust_create_event(struct lttng_event *ev)
        /* Alloc context hash tables */
        lue->ctx = lttng_ht_new(0, LTTNG_HT_TYPE_ULONG);
 
-       DBG2("Trace UST event %s created", lue->attr.name);
+       DBG2("Trace UST event %s, loglevel (%d,%d) created",
+               lue->attr.name, lue->attr.loglevel_type,
+               lue->attr.loglevel);
 
        return lue;
 

diff --git a/src/bin/lttng/commands/enable_events.c b/src/bin/lttng/commands/enable_events.c
index 6e912c11693e70b2fa35f28f45c5359f0b587589..c7b16488d8b38d69b8152840e27c55124d585be8 100644 (file)
--- a/src/bin/lttng/commands/enable_events.c
+++ b/src/bin/lttng/commands/enable_events.c
@@ -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");
 }
 
 /*
@@ -311,9 +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);
@@ -323,8 +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) {
@@ -333,8 +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:
                        /*
@@ -411,8 +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 */
@@ -438,11 +472,13 @@ static int enable_events(char *session_name)
                                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;
                }