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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * trace-event-scripting. Scripting engine common and initialization code.
4 *
5 * Copyright (C) 2009-2010 Tom Zanussi <tzanussi@gmail.com>
6 */
7
8#include <stdio.h>
9#include <stdlib.h>
10#include <string.h>
11#include <errno.h>
12#include <traceevent/event-parse.h>
13
14#include "debug.h"
15#include "trace-event.h"
16#include "evsel.h"
17#include <linux/zalloc.h>
18#include "util/sample.h"
19
20struct scripting_context *scripting_context;
21
22void scripting_context__update(struct scripting_context *c,
23 union perf_event *event,
24 struct perf_sample *sample,
25 struct evsel *evsel,
26 struct addr_location *al,
27 struct addr_location *addr_al)
28{
29 c->event_data = sample->raw_data;
30 if (evsel->tp_format)
31 c->pevent = evsel->tp_format->tep;
32 else
33 c->pevent = NULL;
34 c->event = event;
35 c->sample = sample;
36 c->evsel = evsel;
37 c->al = al;
38 c->addr_al = addr_al;
39}
40
41static int flush_script_unsupported(void)
42{
43 return 0;
44}
45
46static int stop_script_unsupported(void)
47{
48 return 0;
49}
50
51static void process_event_unsupported(union perf_event *event __maybe_unused,
52 struct perf_sample *sample __maybe_unused,
53 struct evsel *evsel __maybe_unused,
54 struct addr_location *al __maybe_unused,
55 struct addr_location *addr_al __maybe_unused)
56{
57}
58
59static void print_python_unsupported_msg(void)
60{
61 fprintf(stderr, "Python scripting not supported."
62 " Install libpython and rebuild perf to enable it.\n"
63 "For example:\n # apt-get install python-dev (ubuntu)"
64 "\n # yum install python-devel (Fedora)"
65 "\n etc.\n");
66}
67
68static int python_start_script_unsupported(const char *script __maybe_unused,
69 int argc __maybe_unused,
70 const char **argv __maybe_unused,
71 struct perf_session *session __maybe_unused)
72{
73 print_python_unsupported_msg();
74
75 return -1;
76}
77
78static int python_generate_script_unsupported(struct tep_handle *pevent
79 __maybe_unused,
80 const char *outfile
81 __maybe_unused)
82{
83 print_python_unsupported_msg();
84
85 return -1;
86}
87
88struct scripting_ops python_scripting_unsupported_ops = {
89 .name = "Python",
90 .dirname = "python",
91 .start_script = python_start_script_unsupported,
92 .flush_script = flush_script_unsupported,
93 .stop_script = stop_script_unsupported,
94 .process_event = process_event_unsupported,
95 .generate_script = python_generate_script_unsupported,
96};
97
98static void register_python_scripting(struct scripting_ops *scripting_ops)
99{
100 if (scripting_context == NULL)
101 scripting_context = malloc(sizeof(*scripting_context));
102
103 if (scripting_context == NULL ||
104 script_spec_register("Python", scripting_ops) ||
105 script_spec_register("py", scripting_ops)) {
106 pr_err("Error registering Python script extension: disabling it\n");
107 zfree(&scripting_context);
108 }
109}
110
111#ifndef HAVE_LIBPYTHON_SUPPORT
112void setup_python_scripting(void)
113{
114 register_python_scripting(&python_scripting_unsupported_ops);
115}
116#else
117extern struct scripting_ops python_scripting_ops;
118
119void setup_python_scripting(void)
120{
121 register_python_scripting(&python_scripting_ops);
122}
123#endif
124
125static void print_perl_unsupported_msg(void)
126{
127 fprintf(stderr, "Perl scripting not supported."
128 " Install libperl and rebuild perf to enable it.\n"
129 "For example:\n # apt-get install libperl-dev (ubuntu)"
130 "\n # yum install 'perl(ExtUtils::Embed)' (Fedora)"
131 "\n etc.\n");
132}
133
134static int perl_start_script_unsupported(const char *script __maybe_unused,
135 int argc __maybe_unused,
136 const char **argv __maybe_unused,
137 struct perf_session *session __maybe_unused)
138{
139 print_perl_unsupported_msg();
140
141 return -1;
142}
143
144static int perl_generate_script_unsupported(struct tep_handle *pevent
145 __maybe_unused,
146 const char *outfile __maybe_unused)
147{
148 print_perl_unsupported_msg();
149
150 return -1;
151}
152
153struct scripting_ops perl_scripting_unsupported_ops = {
154 .name = "Perl",
155 .dirname = "perl",
156 .start_script = perl_start_script_unsupported,
157 .flush_script = flush_script_unsupported,
158 .stop_script = stop_script_unsupported,
159 .process_event = process_event_unsupported,
160 .generate_script = perl_generate_script_unsupported,
161};
162
163static void register_perl_scripting(struct scripting_ops *scripting_ops)
164{
165 if (scripting_context == NULL)
166 scripting_context = malloc(sizeof(*scripting_context));
167
168 if (scripting_context == NULL ||
169 script_spec_register("Perl", scripting_ops) ||
170 script_spec_register("pl", scripting_ops)) {
171 pr_err("Error registering Perl script extension: disabling it\n");
172 zfree(&scripting_context);
173 }
174}
175
176#ifndef HAVE_LIBPERL_SUPPORT
177void setup_perl_scripting(void)
178{
179 register_perl_scripting(&perl_scripting_unsupported_ops);
180}
181#else
182extern struct scripting_ops perl_scripting_ops;
183
184void setup_perl_scripting(void)
185{
186 register_perl_scripting(&perl_scripting_ops);
187}
188#endif
1/*
2 * trace-event-scripting. Scripting engine common and initialization code.
3 *
4 * Copyright (C) 2009-2010 Tom Zanussi <tzanussi@gmail.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22#include <stdio.h>
23#include <stdlib.h>
24#include <string.h>
25#include <errno.h>
26
27#include "../perf.h"
28#include "util.h"
29#include "trace-event.h"
30
31struct scripting_context *scripting_context;
32
33static int stop_script_unsupported(void)
34{
35 return 0;
36}
37
38static void process_event_unsupported(union perf_event *event __unused,
39 struct perf_sample *sample __unused,
40 struct perf_evsel *evsel __unused,
41 struct machine *machine __unused,
42 struct thread *thread __unused)
43{
44}
45
46static void print_python_unsupported_msg(void)
47{
48 fprintf(stderr, "Python scripting not supported."
49 " Install libpython and rebuild perf to enable it.\n"
50 "For example:\n # apt-get install python-dev (ubuntu)"
51 "\n # yum install python-devel (Fedora)"
52 "\n etc.\n");
53}
54
55static int python_start_script_unsupported(const char *script __unused,
56 int argc __unused,
57 const char **argv __unused)
58{
59 print_python_unsupported_msg();
60
61 return -1;
62}
63
64static int python_generate_script_unsupported(const char *outfile __unused)
65{
66 print_python_unsupported_msg();
67
68 return -1;
69}
70
71struct scripting_ops python_scripting_unsupported_ops = {
72 .name = "Python",
73 .start_script = python_start_script_unsupported,
74 .stop_script = stop_script_unsupported,
75 .process_event = process_event_unsupported,
76 .generate_script = python_generate_script_unsupported,
77};
78
79static void register_python_scripting(struct scripting_ops *scripting_ops)
80{
81 int err;
82 err = script_spec_register("Python", scripting_ops);
83 if (err)
84 die("error registering Python script extension");
85
86 err = script_spec_register("py", scripting_ops);
87 if (err)
88 die("error registering py script extension");
89
90 scripting_context = malloc(sizeof(struct scripting_context));
91}
92
93#ifdef NO_LIBPYTHON
94void setup_python_scripting(void)
95{
96 register_python_scripting(&python_scripting_unsupported_ops);
97}
98#else
99extern struct scripting_ops python_scripting_ops;
100
101void setup_python_scripting(void)
102{
103 register_python_scripting(&python_scripting_ops);
104}
105#endif
106
107static void print_perl_unsupported_msg(void)
108{
109 fprintf(stderr, "Perl scripting not supported."
110 " Install libperl and rebuild perf to enable it.\n"
111 "For example:\n # apt-get install libperl-dev (ubuntu)"
112 "\n # yum install 'perl(ExtUtils::Embed)' (Fedora)"
113 "\n etc.\n");
114}
115
116static int perl_start_script_unsupported(const char *script __unused,
117 int argc __unused,
118 const char **argv __unused)
119{
120 print_perl_unsupported_msg();
121
122 return -1;
123}
124
125static int perl_generate_script_unsupported(const char *outfile __unused)
126{
127 print_perl_unsupported_msg();
128
129 return -1;
130}
131
132struct scripting_ops perl_scripting_unsupported_ops = {
133 .name = "Perl",
134 .start_script = perl_start_script_unsupported,
135 .stop_script = stop_script_unsupported,
136 .process_event = process_event_unsupported,
137 .generate_script = perl_generate_script_unsupported,
138};
139
140static void register_perl_scripting(struct scripting_ops *scripting_ops)
141{
142 int err;
143 err = script_spec_register("Perl", scripting_ops);
144 if (err)
145 die("error registering Perl script extension");
146
147 err = script_spec_register("pl", scripting_ops);
148 if (err)
149 die("error registering pl script extension");
150
151 scripting_context = malloc(sizeof(struct scripting_context));
152}
153
154#ifdef NO_LIBPERL
155void setup_perl_scripting(void)
156{
157 register_perl_scripting(&perl_scripting_unsupported_ops);
158}
159#else
160extern struct scripting_ops perl_scripting_ops;
161
162void setup_perl_scripting(void)
163{
164 register_perl_scripting(&perl_scripting_ops);
165}
166#endif