Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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 machine *machine __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