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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#ifdef HAVE_LIBTRACEEVENT
13#include <event-parse.h>
14#endif
15
16#include "debug.h"
17#include "trace-event.h"
18#include "evsel.h"
19#include <linux/zalloc.h>
20#include "util/sample.h"
21
22struct scripting_context *scripting_context;
23
24void scripting_context__update(struct scripting_context *c,
25 union perf_event *event,
26 struct perf_sample *sample,
27 struct evsel *evsel,
28 struct addr_location *al,
29 struct addr_location *addr_al)
30{
31 c->event_data = sample->raw_data;
32 c->pevent = NULL;
33#ifdef HAVE_LIBTRACEEVENT
34 if (evsel->tp_format)
35 c->pevent = evsel->tp_format->tep;
36#endif
37 c->event = event;
38 c->sample = sample;
39 c->evsel = evsel;
40 c->al = al;
41 c->addr_al = addr_al;
42}
43
44static int flush_script_unsupported(void)
45{
46 return 0;
47}
48
49static int stop_script_unsupported(void)
50{
51 return 0;
52}
53
54static void process_event_unsupported(union perf_event *event __maybe_unused,
55 struct perf_sample *sample __maybe_unused,
56 struct evsel *evsel __maybe_unused,
57 struct addr_location *al __maybe_unused,
58 struct addr_location *addr_al __maybe_unused)
59{
60}
61
62static void print_python_unsupported_msg(void)
63{
64 fprintf(stderr, "Python scripting not supported."
65 " Install libpython and rebuild perf to enable it.\n"
66 "For example:\n # apt-get install python-dev (ubuntu)"
67 "\n # yum install python-devel (Fedora)"
68 "\n etc.\n");
69}
70
71static int python_start_script_unsupported(const char *script __maybe_unused,
72 int argc __maybe_unused,
73 const char **argv __maybe_unused,
74 struct perf_session *session __maybe_unused)
75{
76 print_python_unsupported_msg();
77
78 return -1;
79}
80
81static int python_generate_script_unsupported(struct tep_handle *pevent
82 __maybe_unused,
83 const char *outfile
84 __maybe_unused)
85{
86 print_python_unsupported_msg();
87
88 return -1;
89}
90
91struct scripting_ops python_scripting_unsupported_ops = {
92 .name = "Python",
93 .dirname = "python",
94 .start_script = python_start_script_unsupported,
95 .flush_script = flush_script_unsupported,
96 .stop_script = stop_script_unsupported,
97 .process_event = process_event_unsupported,
98 .generate_script = python_generate_script_unsupported,
99};
100
101static void register_python_scripting(struct scripting_ops *scripting_ops)
102{
103 if (scripting_context == NULL)
104 scripting_context = malloc(sizeof(*scripting_context));
105
106 if (scripting_context == NULL ||
107 script_spec_register("Python", scripting_ops) ||
108 script_spec_register("py", scripting_ops)) {
109 pr_err("Error registering Python script extension: disabling it\n");
110 zfree(&scripting_context);
111 }
112}
113
114#ifndef HAVE_LIBPYTHON_SUPPORT
115void setup_python_scripting(void)
116{
117 register_python_scripting(&python_scripting_unsupported_ops);
118}
119#else
120extern struct scripting_ops python_scripting_ops;
121
122void setup_python_scripting(void)
123{
124 register_python_scripting(&python_scripting_ops);
125}
126#endif
127
128#ifdef HAVE_LIBTRACEEVENT
129static void print_perl_unsupported_msg(void)
130{
131 fprintf(stderr, "Perl scripting not supported."
132 " Install libperl and rebuild perf to enable it.\n"
133 "For example:\n # apt-get install libperl-dev (ubuntu)"
134 "\n # yum install 'perl(ExtUtils::Embed)' (Fedora)"
135 "\n etc.\n");
136}
137
138static int perl_start_script_unsupported(const char *script __maybe_unused,
139 int argc __maybe_unused,
140 const char **argv __maybe_unused,
141 struct perf_session *session __maybe_unused)
142{
143 print_perl_unsupported_msg();
144
145 return -1;
146}
147
148static int perl_generate_script_unsupported(struct tep_handle *pevent
149 __maybe_unused,
150 const char *outfile __maybe_unused)
151{
152 print_perl_unsupported_msg();
153
154 return -1;
155}
156
157struct scripting_ops perl_scripting_unsupported_ops = {
158 .name = "Perl",
159 .dirname = "perl",
160 .start_script = perl_start_script_unsupported,
161 .flush_script = flush_script_unsupported,
162 .stop_script = stop_script_unsupported,
163 .process_event = process_event_unsupported,
164 .generate_script = perl_generate_script_unsupported,
165};
166
167static void register_perl_scripting(struct scripting_ops *scripting_ops)
168{
169 if (scripting_context == NULL)
170 scripting_context = malloc(sizeof(*scripting_context));
171
172 if (scripting_context == NULL ||
173 script_spec_register("Perl", scripting_ops) ||
174 script_spec_register("pl", scripting_ops)) {
175 pr_err("Error registering Perl script extension: disabling it\n");
176 zfree(&scripting_context);
177 }
178}
179
180#ifndef HAVE_LIBPERL_SUPPORT
181void setup_perl_scripting(void)
182{
183 register_perl_scripting(&perl_scripting_unsupported_ops);
184}
185#else
186extern struct scripting_ops perl_scripting_ops;
187
188void setup_perl_scripting(void)
189{
190 register_perl_scripting(&perl_scripting_ops);
191}
192#endif
193#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 <ctype.h>
26#include <errno.h>
27
28#include "../perf.h"
29#include "util.h"
30#include "trace-event.h"
31
32struct scripting_context *scripting_context;
33
34static int stop_script_unsupported(void)
35{
36 return 0;
37}
38
39static void process_event_unsupported(union perf_event *event __unused,
40 struct perf_sample *sample __unused,
41 struct perf_evsel *evsel __unused,
42 struct perf_session *session __unused,
43 struct thread *thread __unused)
44{
45}
46
47static void print_python_unsupported_msg(void)
48{
49 fprintf(stderr, "Python scripting not supported."
50 " Install libpython and rebuild perf to enable it.\n"
51 "For example:\n # apt-get install python-dev (ubuntu)"
52 "\n # yum install python-devel (Fedora)"
53 "\n etc.\n");
54}
55
56static int python_start_script_unsupported(const char *script __unused,
57 int argc __unused,
58 const char **argv __unused)
59{
60 print_python_unsupported_msg();
61
62 return -1;
63}
64
65static int python_generate_script_unsupported(const char *outfile __unused)
66{
67 print_python_unsupported_msg();
68
69 return -1;
70}
71
72struct scripting_ops python_scripting_unsupported_ops = {
73 .name = "Python",
74 .start_script = python_start_script_unsupported,
75 .stop_script = stop_script_unsupported,
76 .process_event = process_event_unsupported,
77 .generate_script = python_generate_script_unsupported,
78};
79
80static void register_python_scripting(struct scripting_ops *scripting_ops)
81{
82 int err;
83 err = script_spec_register("Python", scripting_ops);
84 if (err)
85 die("error registering Python script extension");
86
87 err = script_spec_register("py", scripting_ops);
88 if (err)
89 die("error registering py script extension");
90
91 scripting_context = malloc(sizeof(struct scripting_context));
92}
93
94#ifdef NO_LIBPYTHON
95void setup_python_scripting(void)
96{
97 register_python_scripting(&python_scripting_unsupported_ops);
98}
99#else
100extern struct scripting_ops python_scripting_ops;
101
102void setup_python_scripting(void)
103{
104 register_python_scripting(&python_scripting_ops);
105}
106#endif
107
108static void print_perl_unsupported_msg(void)
109{
110 fprintf(stderr, "Perl scripting not supported."
111 " Install libperl and rebuild perf to enable it.\n"
112 "For example:\n # apt-get install libperl-dev (ubuntu)"
113 "\n # yum install 'perl(ExtUtils::Embed)' (Fedora)"
114 "\n etc.\n");
115}
116
117static int perl_start_script_unsupported(const char *script __unused,
118 int argc __unused,
119 const char **argv __unused)
120{
121 print_perl_unsupported_msg();
122
123 return -1;
124}
125
126static int perl_generate_script_unsupported(const char *outfile __unused)
127{
128 print_perl_unsupported_msg();
129
130 return -1;
131}
132
133struct scripting_ops perl_scripting_unsupported_ops = {
134 .name = "Perl",
135 .start_script = perl_start_script_unsupported,
136 .stop_script = stop_script_unsupported,
137 .process_event = process_event_unsupported,
138 .generate_script = perl_generate_script_unsupported,
139};
140
141static void register_perl_scripting(struct scripting_ops *scripting_ops)
142{
143 int err;
144 err = script_spec_register("Perl", scripting_ops);
145 if (err)
146 die("error registering Perl script extension");
147
148 err = script_spec_register("pl", scripting_ops);
149 if (err)
150 die("error registering pl script extension");
151
152 scripting_context = malloc(sizeof(struct scripting_context));
153}
154
155#ifdef NO_LIBPERL
156void setup_perl_scripting(void)
157{
158 register_perl_scripting(&perl_scripting_unsupported_ops);
159}
160#else
161extern struct scripting_ops perl_scripting_ops;
162
163void setup_perl_scripting(void)
164{
165 register_perl_scripting(&perl_scripting_ops);
166}
167#endif