ltt-sessiond/ltt-sessiond.h

   1 /*
   2  * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; only version 2
   7  * of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17  */
  18
  19 #ifndef _LTT_SESSIOND_H
  20 #define _LTT_SESSIOND_H
  21
  22 #define DEFAULT_HOME_DIR                "/tmp"
  23 #define DEFAULT_UST_SOCK_DIR            DEFAULT_HOME_DIR "/ust-app-socks"
  24 #define DEFAULT_GLOBAL_APPS_PIPE        DEFAULT_UST_SOCK_DIR "/global"
  25 #define DEFAULT_TRACE_OUTPUT            DEFAULT_HOME_DIR "/lttng"
  26
  27 struct module_param {
  28         const char *name;
  29         int required;
  30 };
  31
  32 /* LTTng kernel tracer modules list */
  33 const struct module_param kernel_modules_list[] = {
  34         /* used by ltt-relay, unload last */
  35         { "lttng-ftrace", 0 },
  36         { "lttng-kprobes", 0 },
  37         { "lttng-kretprobes", 0 },
  38
  39         { "lib-ring-buffer", 1 },
  40         { "ltt-relay", 1 },
  41         { "ltt-ring-buffer-client-discard", 1 },
  42         { "ltt-ring-buffer-client-overwrite", 1 },
  43         { "ltt-ring-buffer-metadata-client", 1 },
  44         { "ltt-ring-buffer-client-mmap-discard", 1 },
  45         { "ltt-ring-buffer-client-mmap-overwrite", 1 },
  46         { "ltt-ring-buffer-metadata-mmap-client", 1 },
  47         { "lttng-probe-lttng", 1 },
  48         { "lttng-types", 0 },
  49         { "lttng-probe-block", 0 },
  50         { "lttng-probe-irq", 0 },
  51         { "lttng-probe-kvm", 0 },
  52         { "lttng-probe-sched", 0 },
  53         { "lttng-probe-syscalls", 0 },
  54 };
  55
  56 extern const char default_home_dir[],
  57         default_tracing_group[],
  58         default_ust_sock_dir[],
  59         default_global_apps_pipe[];
  60
  61 /*
  62  * This contains extra data needed for processing a command received by the
  63  * session daemon from the lttng client.
  64  */
  65 struct command_ctx {
  66         int ust_sock;
  67         unsigned int lttng_msg_size;
  68         struct ltt_session *session;
  69         struct lttcomm_lttng_msg *llm;
  70         struct lttcomm_session_msg *lsm;
  71 };
  72
  73 #endif /* _LTT_SESSIOND_H */