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.
25 #include <sys/types.h>
32 static char *opt_event_name
;
33 static char *opt_channel_name
;
34 static char *opt_perf_name
;
35 static int *opt_kernel
;
36 static int opt_pid_all
;
37 static int opt_userspace
;
38 static int opt_ctx_type
;
39 static int opt_perf_type
;
40 static int opt_perf_id
;
48 static struct poptOption long_options
[] = {
49 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
50 {"help", 'h', POPT_ARG_NONE
, 0, OPT_HELP
, 0, 0},
51 {"channel", 'c', POPT_ARG_STRING
, &opt_channel_name
, 0, 0, 0},
52 {"event", 'e', POPT_ARG_STRING
, &opt_event_name
, 0, 0, 0},
53 {"kernel", 'k', POPT_ARG_VAL
, &opt_kernel
, 1, 0, 0},
54 {"userspace", 'u', POPT_ARG_VAL
, &opt_userspace
, 1, 0, 0},
55 {"all", 0, POPT_ARG_VAL
, &opt_pid_all
, 1, 0, 0},
56 {"pid", 'p', POPT_ARG_INT
, &opt_pid
, 0, 0, 0},
57 {"type", 't', POPT_ARG_INT
, 0, OPT_TYPE
, 0, 0},
58 {"perf-name", 0, POPT_ARG_STRING
, &opt_perf_name
, 0, 0, 0},
59 {"perf-type", 0, POPT_ARG_INT
, &opt_perf_type
, 0, 0, 0},
60 {"perf-id", 0, POPT_ARG_INT
, &opt_perf_id
, 0, 0, 0},
67 static void usage(FILE *ofp
)
69 fprintf(ofp
, "usage: lttng add-context [options] [context_options]\n");
71 fprintf(ofp
, "Options:\n");
72 fprintf(ofp
, " -h, --help Show this help\n");
73 fprintf(ofp
, " -c, --channel NAME Apply on channel\n");
74 fprintf(ofp
, " -e, --event NAME Apply on event\n");
75 fprintf(ofp
, " -k, --kernel Apply for the kernel tracer\n");
76 fprintf(ofp
, " -u, --userspace Apply for the user-space tracer\n");
77 fprintf(ofp
, " --all If -u, apply on all traceable apps\n");
78 fprintf(ofp
, " -p, --pid PID If -u, apply on a specific PID\n");
79 fprintf(ofp
, " -t, --type TYPE Context type. TYPE must be a numerical value:\n");
80 fprintf(ofp
, " KERNEL_CONTEXT_PID = 0\n");
81 fprintf(ofp
, " KERNEL_CONTEXT_PERF_COUNTER = 1\n");
82 fprintf(ofp
, " KERNEL_CONTEXT_COMM = 2\n");
83 fprintf(ofp
, " KERNEL_CONTEXT_PRIO = 3\n");
84 fprintf(ofp
, " KERNEL_CONTEXT_NICE = 4\n");
85 fprintf(ofp
, " KERNEL_CONTEXT_VPID = 5\n");
86 fprintf(ofp
, " KERNEL_CONTEXT_TID = 6\n");
87 fprintf(ofp
, " KERNEL_CONTEXT_VTID = 7\n");
88 fprintf(ofp
, " KERNEL_CONTEXT_PPID = 8\n");
89 fprintf(ofp
, " KERNEL_CONTEXT_VPPID = 9\n");
91 fprintf(ofp
, "Context options:\n");
92 fprintf(ofp
, " --perf-name NAME Perf event name\n");
93 fprintf(ofp
, " --perf-type TYPE Perf event type. TYPE must be a numeric value:\n");
94 fprintf(ofp
, " PERF_TYPE_HARDWARE = 0\n");
95 fprintf(ofp
, " PERF_TYPE_SOFTWARE = 1\n");
96 fprintf(ofp
, " --perf-id ID Perf event id. ID must be a numeric value:\n");
97 fprintf(ofp
, " Hardware IDs (0):\n");
98 fprintf(ofp
, " PERF_COUNT_HW_CPU_CYCLES = 0\n");
99 fprintf(ofp
, " PERF_COUNT_HW_INSTRUCTIONS = 1\n");
100 fprintf(ofp
, " PERF_COUNT_HW_CACHE_REFERENCES = 2\n");
101 fprintf(ofp
, " PERF_COUNT_HW_CACHE_MISSES = 3\n");
102 fprintf(ofp
, " PERF_COUNT_HW_BRANCH_INSTRUCTIONS = 4\n");
103 fprintf(ofp
, " PERF_COUNT_HW_BRANCH_MISSES = 5\n");
104 fprintf(ofp
, " PERF_COUNT_HW_BUS_CYCLES = 6\n");
105 fprintf(ofp
, " Software IDs (1):\n");
106 fprintf(ofp
, " PERF_COUNT_SW_CPU_CLOCK = 0\n");
107 fprintf(ofp
, " PERF_COUNT_SW_TASK_CLOCK = 1\n");
108 fprintf(ofp
, " PERF_COUNT_SW_PAGE_FAULTS = 2\n");
109 fprintf(ofp
, " PERF_COUNT_SW_CONTEXT_SWITCHES = 3\n");
110 fprintf(ofp
, " PERF_COUNT_SW_CPU_MIGRATIONS = 4\n");
111 fprintf(ofp
, " PERF_COUNT_SW_PAGE_FAULTS_MIN = 5\n");
112 fprintf(ofp
, " PERF_COUNT_SW_PAGE_FAULTS_MAJ = 6\n");
119 * Add context to channel or event.
121 static int add_context(void)
123 int ret
= CMD_SUCCESS
;
124 struct lttng_kernel_context context
;
126 if (set_session_name() < 0) {
131 context
.ctx
= opt_ctx_type
;
132 if (opt_ctx_type
== LTTNG_KERNEL_CONTEXT_PERF_COUNTER
) {
133 context
.u
.perf_counter
.type
= opt_perf_type
;
134 context
.u
.perf_counter
.config
= opt_perf_id
;
135 strncpy(context
.u
.perf_counter
.name
, opt_perf_name
,
136 LTTNG_SYMBOL_NAME_LEN
);
140 DBG("Adding kernel context\n");
141 ret
= lttng_kernel_add_context(&context
, opt_event_name
, opt_channel_name
);
145 MSG("Kernel context added");
147 } else if (opt_userspace
) { /* User-space tracer action */
149 * TODO: Waiting on lttng UST 2.0
152 } else if (opt_pid
!= 0) {
154 ret
= CMD_NOT_IMPLEMENTED
;
157 ERR("Please specify a tracer (kernel or user-space)");
168 * Add context on channel or event.
170 int cmd_add_context(int argc
, const char **argv
)
174 static poptContext pc
;
176 pc
= poptGetContext(NULL
, argc
, argv
, long_options
, 0);
177 poptReadDefaultConfig(pc
, 0);
179 while ((opt
= poptGetNextOpt(pc
)) != -1) {
186 /* Mandatory field */
187 tmp
= poptGetOptArg(pc
);
193 opt_ctx_type
= atoi(tmp
);