[lttng-tools.git] / lttng / commands / add_context.c

/*
 * 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
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#define _GNU_SOURCE
#include <popt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>

#include "cmd.h"
#include "conf.h"
#include "utils.h"

static char *opt_event_name;
static char *opt_channel_name;
static char *opt_perf_name;
static int *opt_kernel;
static int opt_pid_all;
static int opt_userspace;
static int opt_ctx_type;
static int opt_perf_type;
static int opt_perf_id;
static pid_t opt_pid;

enum {
	OPT_HELP = 1,
	OPT_TYPE,
};

static struct poptOption long_options[] = {
	/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
	{"help",           'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
	{"channel",        'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0},
	{"event",          'e', POPT_ARG_STRING, &opt_event_name, 0, 0, 0},
	{"kernel",         'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0},
	{"userspace",      'u', POPT_ARG_VAL, &opt_userspace, 1, 0, 0},
	{"all",            0,   POPT_ARG_VAL, &opt_pid_all, 1, 0, 0},
	{"pid",            'p', POPT_ARG_INT, &opt_pid, 0, 0, 0},
	{"type",           't', POPT_ARG_INT, 0, OPT_TYPE, 0, 0},
	{"perf-name",      0,   POPT_ARG_STRING, &opt_perf_name, 0, 0, 0},
	{"perf-type",      0,   POPT_ARG_INT, &opt_perf_type, 0, 0, 0},
	{"perf-id",        0,   POPT_ARG_INT, &opt_perf_id, 0, 0, 0},
	{0, 0, 0, 0, 0, 0, 0}
};

/*
 * usage
 */
static void usage(FILE *ofp)
{
	fprintf(ofp, "usage: lttng add-context [options] [context_options]\n");
	fprintf(ofp, "\n");
	fprintf(ofp, "Options:\n");
	fprintf(ofp, "  -h, --help               Show this help\n");
	fprintf(ofp, "  -c, --channel NAME       Apply on channel\n");
	fprintf(ofp, "  -e, --event NAME         Apply on event\n");
	fprintf(ofp, "  -k, --kernel             Apply for the kernel tracer\n");
	fprintf(ofp, "  -u, --userspace          Apply for the user-space tracer\n");
	fprintf(ofp, "      --all                If -u, apply on all traceable apps\n");
	fprintf(ofp, "  -p, --pid PID            If -u, apply on a specific PID\n");
	fprintf(ofp, "  -t, --type TYPE          Context type. TYPE must be a numerical value:\n");
	fprintf(ofp, "                             KERNEL_CONTEXT_PID = 0\n");
	fprintf(ofp, "                             KERNEL_CONTEXT_PERF_COUNTER = 1\n");
	fprintf(ofp, "                             KERNEL_CONTEXT_COMM = 2\n");
	fprintf(ofp, "                             KERNEL_CONTEXT_PRIO = 3\n");
	fprintf(ofp, "                             KERNEL_CONTEXT_NICE = 4\n");
	fprintf(ofp, "                             KERNEL_CONTEXT_VPID = 5\n");
	fprintf(ofp, "                             KERNEL_CONTEXT_TID = 6\n");
	fprintf(ofp, "                             KERNEL_CONTEXT_VTID = 7\n");
	fprintf(ofp, "                             KERNEL_CONTEXT_PPID = 8\n");
	fprintf(ofp, "                             KERNEL_CONTEXT_VPPID = 9\n");
	fprintf(ofp, "\n");
	fprintf(ofp, "Context options:\n");
	fprintf(ofp, "      --perf-name NAME     Perf event name\n");
	fprintf(ofp, "      --perf-type TYPE     Perf event type. TYPE must be a numeric value:\n");
	fprintf(ofp, "                             PERF_TYPE_HARDWARE = 0\n");
	fprintf(ofp, "                             PERF_TYPE_SOFTWARE = 1\n");
	fprintf(ofp, "      --perf-id ID         Perf event id. ID must be a numeric value:\n");
	fprintf(ofp, "                           Hardware IDs (0):\n");
	fprintf(ofp, "                             PERF_COUNT_HW_CPU_CYCLES = 0\n");
	fprintf(ofp, "                             PERF_COUNT_HW_INSTRUCTIONS = 1\n");
	fprintf(ofp, "                             PERF_COUNT_HW_CACHE_REFERENCES = 2\n");
	fprintf(ofp, "                             PERF_COUNT_HW_CACHE_MISSES = 3\n");
	fprintf(ofp, "                             PERF_COUNT_HW_BRANCH_INSTRUCTIONS = 4\n");
	fprintf(ofp, "                             PERF_COUNT_HW_BRANCH_MISSES = 5\n");
	fprintf(ofp, "                             PERF_COUNT_HW_BUS_CYCLES = 6\n");
	fprintf(ofp, "                           Software IDs (1):\n");
	fprintf(ofp, "                             PERF_COUNT_SW_CPU_CLOCK = 0\n");
	fprintf(ofp, "                             PERF_COUNT_SW_TASK_CLOCK = 1\n");
	fprintf(ofp, "                             PERF_COUNT_SW_PAGE_FAULTS = 2\n");
	fprintf(ofp, "                             PERF_COUNT_SW_CONTEXT_SWITCHES = 3\n");
	fprintf(ofp, "                             PERF_COUNT_SW_CPU_MIGRATIONS = 4\n");
	fprintf(ofp, "                             PERF_COUNT_SW_PAGE_FAULTS_MIN = 5\n");
	fprintf(ofp, "                             PERF_COUNT_SW_PAGE_FAULTS_MAJ = 6\n");
	fprintf(ofp, "\n");
}

/*
 *  add_context
 *
 *  Add context to channel or event.
 */
static int add_context(void)
{
	int ret = CMD_SUCCESS;
	struct lttng_kernel_context context;

	if (set_session_name() < 0) {
		ret = CMD_ERROR;
		goto error;
	}

	context.ctx = opt_ctx_type;
	if (opt_ctx_type == LTTNG_KERNEL_CONTEXT_PERF_COUNTER) {
		context.u.perf_counter.type = opt_perf_type;
		context.u.perf_counter.config = opt_perf_id;
		strncpy(context.u.perf_counter.name, opt_perf_name,
				LTTNG_SYMBOL_NAME_LEN);
	}

	if (opt_kernel) {
		DBG("Adding kernel context\n");
		ret = lttng_kernel_add_context(&context, opt_event_name, opt_channel_name);
		if (ret < 0) {
			goto error;
		} else {
			MSG("Kernel context added");
		}
	} else if (opt_userspace) {		/* User-space tracer action */
		/*
		 * TODO: Waiting on lttng UST 2.0
		 */
		if (opt_pid_all) {
		} else if (opt_pid != 0) {
		}
		ret = CMD_NOT_IMPLEMENTED;
		goto error;
	} else {
		ERR("Please specify a tracer (kernel or user-space)");
		goto error;
	}

error:
	return ret;
}

/*
 *  cmd_add_context
 *
 *  Add context on channel or event.
 */
int cmd_add_context(int argc, const char **argv)
{
	int opt, ret;
	char *tmp;
	static poptContext pc;

	pc = poptGetContext(NULL, argc, argv, long_options, 0);
	poptReadDefaultConfig(pc, 0);

	while ((opt = poptGetNextOpt(pc)) != -1) {
		switch (opt) {
		case OPT_HELP:
			usage(stderr);
			ret = CMD_SUCCESS;
			goto end;
		case OPT_TYPE:
			/* Mandatory field */
			tmp = poptGetOptArg(pc);
			if (tmp == NULL) {
				usage(stderr);
				ret = CMD_ERROR;
				goto end;
			}
			opt_ctx_type = atoi(tmp);
			break;
		default:
			usage(stderr);
			ret = CMD_UNDEFINED;
			goto end;
		}
	}

	ret = add_context();

end:
	return ret;
}
Commit	Line	Data
d65106b1 DG	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; either version 2
	7	* of the License, or (at your option) any later version.
	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	#define _GNU_SOURCE
	20	#include <popt.h>
	21	#include <stdio.h>
	22	#include <stdlib.h>
	23	#include <string.h>
	24	#include <sys/stat.h>
	25	#include <sys/types.h>
	26	#include <unistd.h>
	27
	28	#include "cmd.h"
	29	#include "conf.h"
	30	#include "utils.h"
	31
	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;
	41	static pid_t opt_pid;
	42
	43	enum {
	44	OPT_HELP = 1,
	45	OPT_TYPE,
	46	};
	47
	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},
	61	{0, 0, 0, 0, 0, 0, 0}
	62	};
	63
	64	/*
65	* usage
66	*/
67	static void usage(FILE *ofp)
68	{
69	fprintf(ofp, "usage: lttng add-context [options] [context_options]\n");
70	fprintf(ofp, "\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");
90	fprintf(ofp, "\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");
113	fprintf(ofp, "\n");
114	}
115
116	/*
117	* add_context
118	*
119	* Add context to channel or event.
120	*/
121	static int add_context(void)
122	{
123	int ret = CMD_SUCCESS;
124	struct lttng_kernel_context context;
125
126	if (set_session_name() < 0) {
127	ret = CMD_ERROR;
128	goto error;
129	}
130
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);
137	}
138
139	if (opt_kernel) {
140	DBG("Adding kernel context\n");
141	ret = lttng_kernel_add_context(&context, opt_event_name, opt_channel_name);
142	if (ret < 0) {
143	goto error;
144	} else {
145	MSG("Kernel context added");
146	}
147	} else if (opt_userspace) { /* User-space tracer action */
148	/*
149	* TODO: Waiting on lttng UST 2.0
150	*/
151	if (opt_pid_all) {
152	} else if (opt_pid != 0) {
153	}
154	ret = CMD_NOT_IMPLEMENTED;
155	goto error;
156	} else {
157	ERR("Please specify a tracer (kernel or user-space)");
158	goto error;
159	}
160
161	error:
162	return ret;
163	}
164
165	/*
166	* cmd_add_context
167	*
168	* Add context on channel or event.
169	*/
170	int cmd_add_context(int argc, const char **argv)
171	{
172	int opt, ret;
173	char *tmp;
174	static poptContext pc;
175
176	pc = poptGetContext(NULL, argc, argv, long_options, 0);
177	poptReadDefaultConfig(pc, 0);
178
179	while ((opt = poptGetNextOpt(pc)) != -1) {
180	switch (opt) {
181	case OPT_HELP:
182	usage(stderr);
183	ret = CMD_SUCCESS;
184	goto end;
185	case OPT_TYPE:
186	/* Mandatory field */
187	tmp = poptGetOptArg(pc);
188	if (tmp == NULL) {
189	usage(stderr);
190	ret = CMD_ERROR;
191	goto end;
192	}
193	opt_ctx_type = atoi(tmp);
194	break;
195	default:
196	usage(stderr);
197	ret = CMD_UNDEFINED;
198	goto end;
199	}
200	}
201
202	ret = add_context();
203
204	end:
205	return ret;
206	}