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