blob: 2c0e64d0b4aa6107800dd9736d50da050fa84429 [file] [log] [blame]
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -04001/*
2 * builtin-probe.c
3 *
4 * Builtin probe command: Set up probe events by C expression
5 *
6 * Written by Masami Hiramatsu <mhiramat@redhat.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 *
22 */
23#define _GNU_SOURCE
24#include <sys/utsname.h>
25#include <sys/types.h>
26#include <sys/stat.h>
27#include <fcntl.h>
28#include <errno.h>
29#include <stdio.h>
30#include <unistd.h>
31#include <stdlib.h>
32#include <string.h>
33
34#undef _GNU_SOURCE
35#include "perf.h"
36#include "builtin.h"
37#include "util/util.h"
Masami Hiramatsufa282442009-12-08 17:03:23 -050038#include "util/strlist.h"
Masami Hiramatsubd09d7b2011-01-20 23:15:39 +090039#include "util/strfilter.h"
Masami Hiramatsue0faa8d2010-03-16 18:05:37 -040040#include "util/symbol.h"
Masami Hiramatsu89c69c02009-10-16 20:08:10 -040041#include "util/debug.h"
Masami Hiramatsu96c96612009-12-16 17:24:00 -050042#include "util/debugfs.h"
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -040043#include "util/parse-options.h"
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -040044#include "util/probe-finder.h"
Masami Hiramatsu50656ee2009-11-30 19:19:58 -050045#include "util/probe-event.h"
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -040046
Masami Hiramatsubd09d7b2011-01-20 23:15:39 +090047#define DEFAULT_VAR_FILTER "!__k???tab_* & !__crc_*"
Masami Hiramatsu3c422582011-01-20 23:15:45 +090048#define DEFAULT_FUNC_FILTER "!_*"
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -040049#define MAX_PATH_LEN 256
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -040050
51/* Session management structure */
52static struct {
Masami Hiramatsufac13fd2009-12-15 10:31:14 -050053 bool list_events;
Masami Hiramatsud761b082009-12-15 10:32:25 -050054 bool force_add;
Masami Hiramatsu631c9de2010-01-06 09:45:34 -050055 bool show_lines;
Masami Hiramatsucf6eb482010-10-21 19:13:23 +090056 bool show_vars;
Masami Hiramatsufb8c5a52010-10-21 19:13:35 +090057 bool show_ext_vars;
Masami Hiramatsue80711c2011-01-13 21:46:11 +090058 bool show_funcs;
Masami Hiramatsucf6eb482010-10-21 19:13:23 +090059 bool mod_events;
Masami Hiramatsu4235b042010-03-16 18:06:12 -040060 int nevents;
61 struct perf_probe_event events[MAX_PROBES];
Masami Hiramatsufa282442009-12-08 17:03:23 -050062 struct strlist *dellist;
Masami Hiramatsu631c9de2010-01-06 09:45:34 -050063 struct line_range line_range;
Masami Hiramatsu469b9b82010-10-21 19:13:41 +090064 const char *target_module;
Masami Hiramatsuef4a3562010-04-21 15:56:40 -040065 int max_probe_points;
Masami Hiramatsubd09d7b2011-01-20 23:15:39 +090066 struct strfilter *filter;
Masami Hiramatsu12a1fad2010-03-16 18:05:44 -040067} params;
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -040068
Masami Hiramatsu253977b2009-10-27 16:43:10 -040069/* Parse an event definition. Note that any error must die. */
Masami Hiramatsu146a1432010-04-12 13:17:42 -040070static int parse_probe_event(const char *str)
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -040071{
Masami Hiramatsu4235b042010-03-16 18:06:12 -040072 struct perf_probe_event *pev = &params.events[params.nevents];
Masami Hiramatsu146a1432010-04-12 13:17:42 -040073 int ret;
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -040074
Masami Hiramatsu4235b042010-03-16 18:06:12 -040075 pr_debug("probe-definition(%d): %s\n", params.nevents, str);
Arnaldo Carvalho de Melo8a7ddad2010-05-18 22:57:27 -030076 if (++params.nevents == MAX_PROBES) {
77 pr_err("Too many probes (> %d) were specified.", MAX_PROBES);
78 return -1;
79 }
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -040080
Masami Hiramatsu4235b042010-03-16 18:06:12 -040081 /* Parse a perf-probe command into event */
Masami Hiramatsu146a1432010-04-12 13:17:42 -040082 ret = parse_perf_probe_command(str, pev);
Masami Hiramatsu4235b042010-03-16 18:06:12 -040083 pr_debug("%d arguments\n", pev->nargs);
Masami Hiramatsu146a1432010-04-12 13:17:42 -040084
85 return ret;
Masami Hiramatsu46ab4922009-10-27 16:43:02 -040086}
87
Masami Hiramatsu146a1432010-04-12 13:17:42 -040088static int parse_probe_event_argv(int argc, const char **argv)
Masami Hiramatsud1bde3f2009-12-08 17:02:54 -050089{
Masami Hiramatsu146a1432010-04-12 13:17:42 -040090 int i, len, ret;
Masami Hiramatsud1bde3f2009-12-08 17:02:54 -050091 char *buf;
92
93 /* Bind up rest arguments */
94 len = 0;
95 for (i = 0; i < argc; i++)
96 len += strlen(argv[i]) + 1;
Arnaldo Carvalho de Melo8a7ddad2010-05-18 22:57:27 -030097 buf = zalloc(len + 1);
98 if (buf == NULL)
99 return -ENOMEM;
Masami Hiramatsud1bde3f2009-12-08 17:02:54 -0500100 len = 0;
101 for (i = 0; i < argc; i++)
102 len += sprintf(&buf[len], "%s ", argv[i]);
Masami Hiramatsucf6eb482010-10-21 19:13:23 +0900103 params.mod_events = true;
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400104 ret = parse_probe_event(buf);
Masami Hiramatsud1bde3f2009-12-08 17:02:54 -0500105 free(buf);
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400106 return ret;
Masami Hiramatsud1bde3f2009-12-08 17:02:54 -0500107}
108
Masami Hiramatsu253977b2009-10-27 16:43:10 -0400109static int opt_add_probe_event(const struct option *opt __used,
Masami Hiramatsu46ab4922009-10-27 16:43:02 -0400110 const char *str, int unset __used)
111{
Masami Hiramatsucf6eb482010-10-21 19:13:23 +0900112 if (str) {
113 params.mod_events = true;
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400114 return parse_probe_event(str);
Masami Hiramatsucf6eb482010-10-21 19:13:23 +0900115 } else
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400116 return 0;
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -0400117}
118
Masami Hiramatsufa282442009-12-08 17:03:23 -0500119static int opt_del_probe_event(const struct option *opt __used,
120 const char *str, int unset __used)
121{
122 if (str) {
Masami Hiramatsucf6eb482010-10-21 19:13:23 +0900123 params.mod_events = true;
Masami Hiramatsu12a1fad2010-03-16 18:05:44 -0400124 if (!params.dellist)
125 params.dellist = strlist__new(true, NULL);
126 strlist__add(params.dellist, str);
Masami Hiramatsufa282442009-12-08 17:03:23 -0500127 }
128 return 0;
129}
130
Masami Hiramatsu4b4da7f2010-03-22 13:10:26 -0300131#ifdef DWARF_SUPPORT
Hitoshi Mitake0eda7382010-01-16 21:31:16 +0900132static int opt_show_lines(const struct option *opt __used,
133 const char *str, int unset __used)
134{
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400135 int ret = 0;
136
Hitoshi Mitake0eda7382010-01-16 21:31:16 +0900137 if (str)
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400138 ret = parse_line_range_desc(str, &params.line_range);
Masami Hiramatsu12a1fad2010-03-16 18:05:44 -0400139 INIT_LIST_HEAD(&params.line_range.line_list);
140 params.show_lines = true;
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400141
142 return ret;
Hitoshi Mitake0eda7382010-01-16 21:31:16 +0900143}
Masami Hiramatsucf6eb482010-10-21 19:13:23 +0900144
145static int opt_show_vars(const struct option *opt __used,
146 const char *str, int unset __used)
147{
148 struct perf_probe_event *pev = &params.events[params.nevents];
149 int ret;
150
151 if (!str)
152 return 0;
153
154 ret = parse_probe_event(str);
155 if (!ret && pev->nargs != 0) {
156 pr_err(" Error: '--vars' doesn't accept arguments.\n");
157 return -EINVAL;
158 }
159 params.show_vars = true;
160
161 return ret;
162}
Masami Hiramatsu3c422582011-01-20 23:15:45 +0900163#endif
Masami Hiramatsubd09d7b2011-01-20 23:15:39 +0900164
165static int opt_set_filter(const struct option *opt __used,
166 const char *str, int unset __used)
167{
168 const char *err;
169
170 if (str) {
171 pr_debug2("Set filter: %s\n", str);
172 if (params.filter)
173 strfilter__delete(params.filter);
174 params.filter = strfilter__new(str, &err);
175 if (!params.filter) {
Arnaldo Carvalho de Melo823c7162011-01-31 19:45:38 -0200176 pr_err("Filter parse error at %td.\n", err - str + 1);
Masami Hiramatsubd09d7b2011-01-20 23:15:39 +0900177 pr_err("Source: \"%s\"\n", str);
178 pr_err(" %*c\n", (int)(err - str + 1), '^');
179 return -EINVAL;
180 }
181 }
182
183 return 0;
184}
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -0400185
186static const char * const probe_usage[] = {
Masami Hiramatsu46ab4922009-10-27 16:43:02 -0400187 "perf probe [<options>] 'PROBEDEF' ['PROBEDEF' ...]",
188 "perf probe [<options>] --add 'PROBEDEF' [--add 'PROBEDEF' ...]",
Masami Hiramatsufa282442009-12-08 17:03:23 -0500189 "perf probe [<options>] --del '[GROUP:]EVENT' ...",
Masami Hiramatsu4de189f2009-11-30 19:20:17 -0500190 "perf probe --list",
Masami Hiramatsu4b4da7f2010-03-22 13:10:26 -0300191#ifdef DWARF_SUPPORT
Masami Hiramatsu469b9b82010-10-21 19:13:41 +0900192 "perf probe [<options>] --line 'LINEDESC'",
193 "perf probe [<options>] --vars 'PROBEPOINT'",
Masami Hiramatsuf3ab4812010-02-25 08:35:12 -0500194#endif
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -0400195 NULL
196};
197
198static const struct option options[] = {
Ian Munsiec0555642010-04-13 18:37:33 +1000199 OPT_INCR('v', "verbose", &verbose,
Masami Hiramatsu89c69c02009-10-16 20:08:10 -0400200 "be more verbose (show parsed arguments, etc)"),
Masami Hiramatsu12a1fad2010-03-16 18:05:44 -0400201 OPT_BOOLEAN('l', "list", &params.list_events,
Masami Hiramatsufac13fd2009-12-15 10:31:14 -0500202 "list up current probe events"),
Masami Hiramatsufa282442009-12-08 17:03:23 -0500203 OPT_CALLBACK('d', "del", NULL, "[GROUP:]EVENT", "delete a probe event.",
204 opt_del_probe_event),
Masami Hiramatsu46ab4922009-10-27 16:43:02 -0400205 OPT_CALLBACK('a', "add", NULL,
Masami Hiramatsu4b4da7f2010-03-22 13:10:26 -0300206#ifdef DWARF_SUPPORT
Masami Hiramatsu32cb0dd2010-03-03 22:38:43 -0500207 "[EVENT=]FUNC[@SRC][+OFF|%return|:RL|;PT]|SRC:AL|SRC;PT"
Masami Hiramatsu48481932010-04-12 13:16:53 -0400208 " [[NAME=]ARG ...]",
Masami Hiramatsu4b4da7f2010-03-22 13:10:26 -0300209#else
Masami Hiramatsu48481932010-04-12 13:16:53 -0400210 "[EVENT=]FUNC[+OFF|%return] [[NAME=]ARG ...]",
Masami Hiramatsu23e8ec02009-10-07 18:28:30 -0400211#endif
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -0400212 "probe point definition, where\n"
Masami Hiramatsuaf663d72009-12-15 10:32:18 -0500213 "\t\tGROUP:\tGroup name (optional)\n"
214 "\t\tEVENT:\tEvent name\n"
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -0400215 "\t\tFUNC:\tFunction name\n"
Masami Hiramatsu2a9c8c32010-02-25 08:36:12 -0500216 "\t\tOFF:\tOffset from function entry (in byte)\n"
Masami Hiramatsu253977b2009-10-27 16:43:10 -0400217 "\t\t%return:\tPut the probe at function return\n"
Masami Hiramatsu4b4da7f2010-03-22 13:10:26 -0300218#ifdef DWARF_SUPPORT
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -0400219 "\t\tSRC:\tSource code path\n"
Masami Hiramatsu2a9c8c32010-02-25 08:36:12 -0500220 "\t\tRL:\tRelative line number from function entry.\n"
221 "\t\tAL:\tAbsolute line number in file.\n"
222 "\t\tPT:\tLazy expression of line code.\n"
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -0400223 "\t\tARG:\tProbe argument (local variable name or\n"
Masami Hiramatsu50656ee2009-11-30 19:19:58 -0500224 "\t\t\tkprobe-tracer argument format.)\n",
Masami Hiramatsu4b4da7f2010-03-22 13:10:26 -0300225#else
226 "\t\tARG:\tProbe argument (kprobe-tracer argument format.)\n",
227#endif
Masami Hiramatsu253977b2009-10-27 16:43:10 -0400228 opt_add_probe_event),
Masami Hiramatsu12a1fad2010-03-16 18:05:44 -0400229 OPT_BOOLEAN('f', "force", &params.force_add, "forcibly add events"
Masami Hiramatsud761b082009-12-15 10:32:25 -0500230 " with existing name"),
Masami Hiramatsu4b4da7f2010-03-22 13:10:26 -0300231#ifdef DWARF_SUPPORT
Masami Hiramatsu631c9de2010-01-06 09:45:34 -0500232 OPT_CALLBACK('L', "line", NULL,
Masami Hiramatsu085ea732010-04-02 12:50:39 -0400233 "FUNC[:RLN[+NUM|-RLN2]]|SRC:ALN[+NUM|-ALN2]",
Masami Hiramatsu631c9de2010-01-06 09:45:34 -0500234 "Show source code lines.", opt_show_lines),
Masami Hiramatsucf6eb482010-10-21 19:13:23 +0900235 OPT_CALLBACK('V', "vars", NULL,
236 "FUNC[@SRC][+OFF|%return|:RL|;PT]|SRC:AL|SRC;PT",
237 "Show accessible variables on PROBEDEF", opt_show_vars),
Masami Hiramatsufb8c5a52010-10-21 19:13:35 +0900238 OPT_BOOLEAN('\0', "externs", &params.show_ext_vars,
239 "Show external variables too (with --vars only)"),
Masami Hiramatsu4b4da7f2010-03-22 13:10:26 -0300240 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
241 "file", "vmlinux pathname"),
Chase Douglas9ed7e1b2010-06-14 15:26:30 -0400242 OPT_STRING('s', "source", &symbol_conf.source_prefix,
243 "directory", "path to kernel source"),
Masami Hiramatsu469b9b82010-10-21 19:13:41 +0900244 OPT_STRING('m', "module", &params.target_module,
245 "modname", "target module name"),
Masami Hiramatsu631c9de2010-01-06 09:45:34 -0500246#endif
Masami Hiramatsuf4d7da42010-03-16 18:06:05 -0400247 OPT__DRY_RUN(&probe_event_dry_run),
Masami Hiramatsuef4a3562010-04-21 15:56:40 -0400248 OPT_INTEGER('\0', "max-probes", &params.max_probe_points,
249 "Set how many probe points can be found for a probe."),
Masami Hiramatsue80711c2011-01-13 21:46:11 +0900250 OPT_BOOLEAN('F', "funcs", &params.show_funcs,
251 "Show potential probe-able functions."),
Masami Hiramatsu3c422582011-01-20 23:15:45 +0900252 OPT_CALLBACK('\0', "filter", NULL,
253 "[!]FILTER", "Set a filter (with --vars/funcs only)\n"
254 "\t\t\t(default: \"" DEFAULT_VAR_FILTER "\" for --vars,\n"
255 "\t\t\t \"" DEFAULT_FUNC_FILTER "\" for --funcs)",
256 opt_set_filter),
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -0400257 OPT_END()
258};
259
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -0400260int cmd_probe(int argc, const char **argv, const char *prefix __used)
261{
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400262 int ret;
263
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -0400264 argc = parse_options(argc, argv, options, probe_usage,
Masami Hiramatsu46ab4922009-10-27 16:43:02 -0400265 PARSE_OPT_STOP_AT_NON_OPTION);
Masami Hiramatsuce11a602009-12-15 10:31:28 -0500266 if (argc > 0) {
267 if (strcmp(argv[0], "-") == 0) {
268 pr_warning(" Error: '-' is not supported.\n");
269 usage_with_options(probe_usage, options);
270 }
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400271 ret = parse_probe_event_argv(argc, argv);
272 if (ret < 0) {
273 pr_err(" Error: Parse Error. (%d)\n", ret);
274 return ret;
275 }
Masami Hiramatsuce11a602009-12-15 10:31:28 -0500276 }
Masami Hiramatsu46ab4922009-10-27 16:43:02 -0400277
Masami Hiramatsuef4a3562010-04-21 15:56:40 -0400278 if (params.max_probe_points == 0)
279 params.max_probe_points = MAX_PROBES;
280
Masami Hiramatsu4235b042010-03-16 18:06:12 -0400281 if ((!params.nevents && !params.dellist && !params.list_events &&
Masami Hiramatsue80711c2011-01-13 21:46:11 +0900282 !params.show_lines && !params.show_funcs))
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -0400283 usage_with_options(probe_usage, options);
284
Franck Bui-Huufd930ff2010-12-10 14:06:03 +0100285 /*
286 * Only consider the user's kernel image path if given.
287 */
288 symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL);
289
Masami Hiramatsu12a1fad2010-03-16 18:05:44 -0400290 if (params.list_events) {
Masami Hiramatsucf6eb482010-10-21 19:13:23 +0900291 if (params.mod_events) {
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400292 pr_err(" Error: Don't use --list with --add/--del.\n");
Masami Hiramatsufa282442009-12-08 17:03:23 -0500293 usage_with_options(probe_usage, options);
294 }
Masami Hiramatsu12a1fad2010-03-16 18:05:44 -0400295 if (params.show_lines) {
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400296 pr_err(" Error: Don't use --list with --line.\n");
Masami Hiramatsu631c9de2010-01-06 09:45:34 -0500297 usage_with_options(probe_usage, options);
298 }
Masami Hiramatsucf6eb482010-10-21 19:13:23 +0900299 if (params.show_vars) {
300 pr_err(" Error: Don't use --list with --vars.\n");
301 usage_with_options(probe_usage, options);
302 }
Masami Hiramatsue80711c2011-01-13 21:46:11 +0900303 if (params.show_funcs) {
304 pr_err(" Error: Don't use --list with --funcs.\n");
305 usage_with_options(probe_usage, options);
306 }
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400307 ret = show_perf_probe_events();
308 if (ret < 0)
309 pr_err(" Error: Failed to show event list. (%d)\n",
310 ret);
311 return ret;
Masami Hiramatsu4de189f2009-11-30 19:20:17 -0500312 }
Masami Hiramatsue80711c2011-01-13 21:46:11 +0900313 if (params.show_funcs) {
314 if (params.nevents != 0 || params.dellist) {
315 pr_err(" Error: Don't use --funcs with"
316 " --add/--del.\n");
317 usage_with_options(probe_usage, options);
318 }
319 if (params.show_lines) {
320 pr_err(" Error: Don't use --funcs with --line.\n");
321 usage_with_options(probe_usage, options);
322 }
323 if (params.show_vars) {
324 pr_err(" Error: Don't use --funcs with --vars.\n");
325 usage_with_options(probe_usage, options);
326 }
Masami Hiramatsu3c422582011-01-20 23:15:45 +0900327 if (!params.filter)
328 params.filter = strfilter__new(DEFAULT_FUNC_FILTER,
329 NULL);
330 ret = show_available_funcs(params.target_module,
331 params.filter);
332 strfilter__delete(params.filter);
Masami Hiramatsue80711c2011-01-13 21:46:11 +0900333 if (ret < 0)
334 pr_err(" Error: Failed to show functions."
335 " (%d)\n", ret);
336 return ret;
337 }
Masami Hiramatsu4de189f2009-11-30 19:20:17 -0500338
Masami Hiramatsu4b4da7f2010-03-22 13:10:26 -0300339#ifdef DWARF_SUPPORT
Masami Hiramatsu12a1fad2010-03-16 18:05:44 -0400340 if (params.show_lines) {
Masami Hiramatsucf6eb482010-10-21 19:13:23 +0900341 if (params.mod_events) {
342 pr_err(" Error: Don't use --line with"
343 " --add/--del.\n");
344 usage_with_options(probe_usage, options);
345 }
346 if (params.show_vars) {
347 pr_err(" Error: Don't use --line with --vars.\n");
Masami Hiramatsu631c9de2010-01-06 09:45:34 -0500348 usage_with_options(probe_usage, options);
349 }
Masami Hiramatsue0faa8d2010-03-16 18:05:37 -0400350
Masami Hiramatsu469b9b82010-10-21 19:13:41 +0900351 ret = show_line_range(&params.line_range, params.target_module);
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400352 if (ret < 0)
353 pr_err(" Error: Failed to show lines. (%d)\n", ret);
354 return ret;
Masami Hiramatsu631c9de2010-01-06 09:45:34 -0500355 }
Masami Hiramatsucf6eb482010-10-21 19:13:23 +0900356 if (params.show_vars) {
357 if (params.mod_events) {
358 pr_err(" Error: Don't use --vars with"
359 " --add/--del.\n");
360 usage_with_options(probe_usage, options);
361 }
Masami Hiramatsubd09d7b2011-01-20 23:15:39 +0900362 if (!params.filter)
363 params.filter = strfilter__new(DEFAULT_VAR_FILTER,
364 NULL);
365
Masami Hiramatsucf6eb482010-10-21 19:13:23 +0900366 ret = show_available_vars(params.events, params.nevents,
Masami Hiramatsufb8c5a52010-10-21 19:13:35 +0900367 params.max_probe_points,
Masami Hiramatsu469b9b82010-10-21 19:13:41 +0900368 params.target_module,
Masami Hiramatsubd09d7b2011-01-20 23:15:39 +0900369 params.filter,
Masami Hiramatsufb8c5a52010-10-21 19:13:35 +0900370 params.show_ext_vars);
Masami Hiramatsubd09d7b2011-01-20 23:15:39 +0900371 strfilter__delete(params.filter);
Masami Hiramatsucf6eb482010-10-21 19:13:23 +0900372 if (ret < 0)
373 pr_err(" Error: Failed to show vars. (%d)\n", ret);
374 return ret;
375 }
Masami Hiramatsu631c9de2010-01-06 09:45:34 -0500376#endif
377
Masami Hiramatsu12a1fad2010-03-16 18:05:44 -0400378 if (params.dellist) {
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400379 ret = del_perf_probe_events(params.dellist);
Masami Hiramatsu12a1fad2010-03-16 18:05:44 -0400380 strlist__delete(params.dellist);
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400381 if (ret < 0) {
382 pr_err(" Error: Failed to delete events. (%d)\n", ret);
383 return ret;
384 }
Masami Hiramatsufa282442009-12-08 17:03:23 -0500385 }
386
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400387 if (params.nevents) {
388 ret = add_perf_probe_events(params.events, params.nevents,
Masami Hiramatsuc82ec0a2010-10-21 19:13:29 +0900389 params.max_probe_points,
Masami Hiramatsu469b9b82010-10-21 19:13:41 +0900390 params.target_module,
Masami Hiramatsuc82ec0a2010-10-21 19:13:29 +0900391 params.force_add);
Masami Hiramatsu146a1432010-04-12 13:17:42 -0400392 if (ret < 0) {
393 pr_err(" Error: Failed to add events. (%d)\n", ret);
394 return ret;
395 }
396 }
Masami Hiramatsu4ea42b12009-10-08 17:17:38 -0400397 return 0;
398}