/*
- * Copyright (c) 2011 David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
*
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#define _LGPL_SOURCE
#include <common/utils.h>
#include "command.h"
+#include "version.h"
+
+static const char *help_msg =
+#ifdef LTTNG_EMBED_HELP
+#include <lttng.1.h>
+#else
+NULL
+#endif
+;
/* Variables */
-static char *progname;
+static const char *progname;
int opt_no_sessiond;
char *opt_sessiond_path;
/* First level command */
static struct cmd_struct commands[] = {
{ "add-context", cmd_add_context},
- { "calibrate", cmd_calibrate},
{ "create", cmd_create},
+ { "clear", cmd_clear},
{ "destroy", cmd_destroy},
{ "disable-channel", cmd_disable_channels},
{ "disable-event", cmd_disable_events},
{ "list", cmd_list},
{ "load", cmd_load},
{ "metadata", cmd_metadata},
+ { "regenerate", cmd_regenerate},
+ { "rotate", cmd_rotate},
+ { "enable-rotation", cmd_enable_rotation},
+ { "disable-rotation", cmd_disable_rotation},
{ "save", cmd_save},
{ "set-session", cmd_set_session},
{ "snapshot", cmd_snapshot},
{ "stop", cmd_stop},
{ "track", cmd_track},
{ "untrack", cmd_untrack},
- { "help", NULL},
{ "version", cmd_version},
{ "view", cmd_view},
- { "regenerate", cmd_regenerate},
{ NULL, NULL} /* Array closure */
};
static void version(FILE *ofp)
{
- fprintf(ofp, "%s (LTTng Trace Control) " VERSION" - " VERSION_NAME "%s\n",
+ fprintf(ofp, "%s (LTTng Trace Control) " VERSION" - " VERSION_NAME "%s%s\n",
progname,
- GIT_VERSION[0] == '\0' ? "" : " - " GIT_VERSION);
+ GIT_VERSION[0] == '\0' ? "" : " - " GIT_VERSION,
+ EXTRA_VERSION_NAME[0] == '\0' ? "" : " - " EXTRA_VERSION_NAME);
}
/*
return ret;
}
+static bool command_exists(const char *command)
+{
+ const struct cmd_struct *cmd = commands;
+ bool exists = false;
+
+ while (cmd->name != NULL) {
+ if (!strcmp(command, cmd->name)) {
+ exists = true;
+ goto end;
+ }
+ cmd++;
+ }
+
+end:
+ return exists;
+}
+
static void show_basic_help(void)
{
puts("Usage: lttng [--group=GROUP] [--mi=TYPE] [--no-sessiond | --sessiond-path=PATH]");
puts("");
puts("Tracing sessions:");
puts(" create " CONFIG_CMD_DESCR_CREATE);
+ puts(" clear " CONFIG_CMD_DESCR_CLEAR);
puts(" destroy " CONFIG_CMD_DESCR_DESTROY);
puts(" load " CONFIG_CMD_DESCR_LOAD);
- puts(" metadata " CONFIG_CMD_DESCR_METADATA);
+ puts(" regenerate " CONFIG_CMD_DESCR_REGENERATE);
puts(" save " CONFIG_CMD_DESCR_SAVE);
puts(" set-session " CONFIG_CMD_DESCR_SET_SESSION);
puts("");
puts(" start " CONFIG_CMD_DESCR_START);
puts(" stop " CONFIG_CMD_DESCR_STOP);
puts("");
+ puts("Tracing session rotation:");
+ puts(" disable-rotation " CONFIG_CMD_DESCR_DISABLE_ROTATION);
+ puts(" enable-rotation " CONFIG_CMD_DESCR_ENABLE_ROTATION);
+ puts(" rotate " CONFIG_CMD_DESCR_ROTATE);
+ puts("");
puts("Resource tracking:");
puts(" track " CONFIG_CMD_DESCR_TRACK);
puts(" untrack " CONFIG_CMD_DESCR_UNTRACK);
puts("");
puts("Miscellaneous:");
- puts(" calibrate " CONFIG_CMD_DESCR_CALIBRATE);
puts(" help " CONFIG_CMD_DESCR_HELP);
puts(" version " CONFIG_CMD_DESCR_VERSION);
puts(" view " CONFIG_CMD_DESCR_VIEW);
static int parse_args(int argc, char **argv)
{
int opt, ret;
- char *user;
if (lttng_is_setuid_setgid()) {
ERR("'%s' is not allowed to be executed as a setuid/setgid binary for security reasons. Aborting.", argv[0]);
ret = 0;
goto end;
case 'h':
- ret = utils_show_man_page(1, "lttng");
-
+ ret = utils_show_help(1, "lttng", help_msg);
if (ret) {
- ERR("Cannot view man page lttng(1)");
+ ERR("Cannot show --help for `lttng`");
perror("exec");
}
goto end;
ret = handle_command(argc - optind, argv + optind);
switch (ret) {
case CMD_WARNING:
- WARN("Some command(s) went wrong");
- break;
case CMD_ERROR:
- ERR("Command error");
break;
case CMD_UNDEFINED:
- ERR("Undefined command or invalid arguments");
+ if (!command_exists(*(argv + optind))) {
+ MSG("lttng: %s is not an lttng command. See 'lttng --help'.",
+ *(argv + optind));
+ } else {
+ ERR("Unrecognized argument used with \'%s\' command",
+ *(argv + optind));
+ }
break;
case CMD_FATAL:
- ERR("Fatal error");
- break;
case CMD_UNSUPPORTED:
- ERR("Unsupported command");
break;
case -1:
ret = 1;