X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=lttng%2Fcommands%2Fenable_events.c;h=cb53fb0db96094c9736ae181e3bcc3ce27fcd0a9;hp=fbcd40dafac36d388e79fa2bc6f34d3194bac468;hb=2bdd86d4c47902237c691d3c5409f32f205df81e;hpb=f2fc6720dff91c4076318acff69aa3bb5e70060a diff --git a/lttng/commands/enable_events.c b/lttng/commands/enable_events.c index fbcd40daf..cb53fb0db 100644 --- a/lttng/commands/enable_events.c +++ b/lttng/commands/enable_events.c @@ -201,10 +201,23 @@ static int enable_events(char *session_name) channel_name = opt_channel_name; } + if (opt_kernel && opt_userspace) { + MSG("Choose only one of --kernel or --userspace"); + ret = CMD_FATAL; + goto error; + } /* Create lttng domain */ if (opt_kernel) { dom.type = LTTNG_DOMAIN_KERNEL; } + if (opt_userspace) { + /* TODO + * LTTNG_DOMAIN_UST_EXEC_NAME, + * LTTNG_DOMAIN_UST_PID, + * LTTNG_DOMAIN_UST_PID_FOLLOW_CHILDREN + */ + dom.type = LTTNG_DOMAIN_UST; + } handle = lttng_create_handle(session_name, &dom); if (handle == NULL) { @@ -224,10 +237,8 @@ static int enable_events(char *session_name) switch (opt_event_type) { case LTTNG_EVENT_TRACEPOINT: - if (opt_kernel) { - MSG("All kernel tracepoints are enabled in channel %s", - channel_name); - } + MSG("All %s tracepoints are enabled in channel %s", + opt_kernel ? "kernel" : "UST", channel_name); break; case LTTNG_EVENT_SYSCALL: if (opt_kernel) { @@ -236,20 +247,17 @@ static int enable_events(char *session_name) } break; case LTTNG_EVENT_ALL: - if (opt_kernel) { - MSG("All kernel events are enabled in channel %s", - channel_name); - } + MSG("All %s events are enabled in channel %s", + opt_kernel ? "kernel" : "UST", channel_name); break; default: /* - * We should not be here since lttng_enable_event should had failed - * on the event type. + * We should not be here since + * lttng_enable_event should have failed on the + * event type. */ goto error; - } - goto end; } @@ -308,13 +316,41 @@ static int enable_events(char *session_name) } } else if (opt_userspace) { /* User-space tracer action */ /* - * TODO: Waiting on lttng UST 2.0 + * TODO: only supporting pid_all tracing for + * now. Should have different domain based on + * opt_pid. */ - if (opt_pid_all) { - } else if (opt_pid != 0) { + if (!opt_pid_all) { + MSG("Only supporting tracing all UST processes (-u --all) for now."); + ret = CMD_NOT_IMPLEMENTED; + goto error; + } + DBG("Enabling UST event %s for channel %s", + event_name, channel_name); + /* Copy name and type of the event */ + strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); + ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; + ev.type = opt_event_type; + + switch (opt_event_type) { + case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ + ev.type = LTTNG_EVENT_TRACEPOINT; + /* Fall-through */ + case LTTNG_EVENT_TRACEPOINT: + break; + case LTTNG_EVENT_PROBE: + case LTTNG_EVENT_FUNCTION: + case LTTNG_EVENT_FUNCTION_ENTRY: + case LTTNG_EVENT_SYSCALL: + default: + ret = CMD_NOT_IMPLEMENTED; + goto error; + } + + ret = lttng_enable_event(handle, &ev, channel_name); + if (ret == 0) { + MSG("UST event %s created in channel %s", event_name, channel_name); } - ret = CMD_NOT_IMPLEMENTED; - goto error; } else { ERR("Please specify a tracer (--kernel or --userspace)"); goto error;