2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
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; either version 2
7 * of the License, or (at your option) any later version.
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.
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.
24 /* Option variables */
26 char *opt_tracing_group
;
27 char *opt_sessiond_path
;
28 char *opt_session_name
;
30 int opt_destroy_trace
;
31 int opt_create_session
;
32 int opt_destroy_session
;
33 int opt_trace_kernel
= 0;
36 int opt_list_apps
= 0;
37 int opt_no_sessiond
= 0;
38 int opt_list_session
= 0;
39 int opt_list_traces
= 0;
41 int opt_start_trace
= 0;
42 int opt_stop_trace
= 0;
44 int opt_disable_event
;
45 int opt_kern_create_channel
;
46 pid_t opt_trace_pid
= 0;
60 static struct poptOption long_options
[] = {
61 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
62 {"create-session", 'c', POPT_ARG_STRING
, 0, OPT_CREATE_SESSION
, 0, 0},
63 {"create-trace", 'C', POPT_ARG_STRING
| POPT_ARGFLAG_OPTIONAL
, 0, OPT_CREATE_TRACE
, 0, 0},
64 {"destroy-trace", 'D', POPT_ARG_STRING
| POPT_ARGFLAG_OPTIONAL
, 0, OPT_DESTROY_TRACE
, 0, 0},
65 {"destroy-session", 'd', POPT_ARG_STRING
, 0, OPT_DESTROY_SESSION
, 0, 0},
66 {"disable-event", 0, POPT_ARG_STRING
, 0, OPT_DISABLE_EVENT
, 0, 0},
67 {"enable-event", 'e', POPT_ARG_STRING
, 0, OPT_ENABLE_EVENT
, 0, 0},
68 {"group", 0, POPT_ARG_STRING
, &opt_tracing_group
, 0, 0, 0},
69 {"help", 'h', POPT_ARG_NONE
, 0, OPT_HELP
, 0, 0},
70 {"kernel", 'k', POPT_ARG_VAL
, &opt_trace_kernel
, 1, 0, 0},
71 {"kern-create-channel",0, POPT_ARG_VAL
, &opt_kern_create_channel
, 1, 0, 0},
72 {"list-apps", 'L', POPT_ARG_VAL
, &opt_list_apps
, 1, 0, 0},
73 {"list-sessions", 'l', POPT_ARG_VAL
, &opt_list_session
, 1, 0, 0},
74 {"list-traces", 't', POPT_ARG_VAL
, &opt_list_traces
, 1, 0, 0},
75 {"no-kernel", 0, POPT_ARG_VAL
, &opt_trace_kernel
, 0, 0, 0},
76 {"no-sessiond", 0, POPT_ARG_VAL
, &opt_no_sessiond
, 1, 0, 0},
77 {"pid", 'p', POPT_ARG_INT
, &opt_trace_pid
, 0, 0, 0},
78 {"quiet", 'q', POPT_ARG_VAL
, &opt_quiet
, 1, 0, 0},
79 {"session", 's', POPT_ARG_STRING
, &opt_session_name
, 0, 0, 0},
80 {"sessiond-path", 0, POPT_ARG_STRING
, &opt_sessiond_path
, 0, 0, 0},
81 {"start", 0, POPT_ARG_STRING
| POPT_ARGFLAG_OPTIONAL
, 0, OPT_START_TRACE
, 0, 0},
82 {"stop", 0, POPT_ARG_STRING
| POPT_ARGFLAG_OPTIONAL
, 0, OPT_STOP_TRACE
, 0, 0},
83 {"verbose", 'v', POPT_ARG_VAL
, &opt_verbose
, 1, 0, 0},
91 static void usage(FILE *ofp
)
93 fprintf(ofp
, "LTTng Trace Control " VERSION
"\n\n");
94 fprintf(ofp
, "usage : lttng [OPTION]\n");
96 fprintf(ofp
, "Options:\n");
97 fprintf(ofp
, " -v, --verbose Verbose mode\n");
98 fprintf(ofp
, " -q, --quiet Quiet mode\n");
99 fprintf(ofp
, " --help Show help\n");
100 fprintf(ofp
, " --group NAME Unix tracing group name. (default: tracing)\n");
101 fprintf(ofp
, " --no-sessiond Don't spawn a session daemon\n");
102 fprintf(ofp
, " --sessiond-path Session daemon full path\n");
103 fprintf(ofp
, " -L, --list-apps List traceable user-space applications\n");
105 fprintf(ofp
, "Session options:\n");
106 fprintf(ofp
, " -c, --create-session NAME Create a new session\n");
107 fprintf(ofp
, " -l, --list-sessions List all available sessions by name\n");
108 fprintf(ofp
, " -s, --session UUID Specify tracing session using UUID\n");
109 fprintf(ofp
, " -d, --destroy-session NAME Destroy the session specified by NAME\n");
110 fprintf(ofp
, " -t, --list-traces List session's traces. Use -s to specify the session\n");
112 fprintf(ofp
, "Tracing options:\n");
113 fprintf(ofp
, " -p, --pid PID Specify action on user-space tracer for PID\n");
114 fprintf(ofp
, " -k, --kernel Specify action on kernel tracer\n");
115 fprintf(ofp
, " -e, --enable-event LIST Enable tracing event (support marker and tracepoint)\n");
116 fprintf(ofp
, " --disable-event LIST Disable tracing event (support marker and tracepoint)\n");
117 fprintf(ofp
, " -C, --create-trace Create a trace. Allocate and setup a trace\n");
118 fprintf(ofp
, " -D, --destroy-trace [NAME] Destroy a trace. Use NAME to identify user-space trace\n");
119 fprintf(ofp
, " --start [NAME] Start tracing. Use NAME to identify user-space trace\n");
120 fprintf(ofp
, " --stop [NAME] Stop tracing. Use NAME to identify user-space trace\n");
122 fprintf(ofp
, "Kernel tracing options:\n");
123 fprintf(ofp
, " --kern-create-channel Create a kernel channel\n");
125 fprintf(ofp
, "User-space tracing options:\n");
127 fprintf(ofp
, "Please see the lttng(1) man page for full documentation.\n");
128 fprintf(ofp
, "See http://lttng.org for updates, bug reports and news.\n");
134 * Parse command line arguments.
135 * Return 0 if OK, else -1
137 int parse_args(int argc
, const char **argv
)
139 static poptContext pc
;
142 /* If no options, fail */
147 pc
= poptGetContext(NULL
, argc
, argv
, long_options
, 0);
148 poptReadDefaultConfig(pc
, 0);
150 while ((opt
= poptGetNextOpt(pc
)) != -1) {
154 clean_exit(EXIT_SUCCESS
);
156 case OPT_CREATE_SESSION
:
157 opt_create_session
= 1;
158 opt_session_name
= poptGetOptArg(pc
);
160 case OPT_DESTROY_SESSION
:
161 opt_destroy_session
= 1;
162 opt_session_name
= poptGetOptArg(pc
);
164 case OPT_ENABLE_EVENT
:
165 opt_enable_event
= 1;
166 opt_event_list
= poptGetOptArg(pc
);
168 case OPT_DESTROY_TRACE
:
169 opt_destroy_trace
= 1;
170 opt_trace_name
= poptGetOptArg(pc
);
172 case OPT_START_TRACE
:
174 opt_trace_name
= poptGetOptArg(pc
);
178 opt_trace_name
= poptGetOptArg(pc
);
180 case OPT_CREATE_TRACE
:
181 opt_create_trace
= 1;
182 opt_trace_name
= poptGetOptArg(pc
);
186 clean_exit(EXIT_FAILURE
);
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