tjh.dev
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 __unused,
39 struct pevent *pevent __unused,
40 struct perf_sample *sample __unused,
41 struct perf_evsel *evsel __unused,
42 struct machine *machine __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(struct pevent *pevent __unused,
66 const char *outfile __unused)
67{
68 print_python_unsupported_msg();
69
70 return -1;
71}
72
73struct scripting_ops python_scripting_unsupported_ops = {
74 .name = "Python",
75 .start_script = python_start_script_unsupported,
76 .stop_script = stop_script_unsupported,
77 .process_event = process_event_unsupported,
78 .generate_script = python_generate_script_unsupported,
79};
80
81static void register_python_scripting(struct scripting_ops *scripting_ops)
82{
83 int err;
84 err = script_spec_register("Python", scripting_ops);
85 if (err)
86 die("error registering Python script extension");
87
88 err = script_spec_register("py", scripting_ops);
89 if (err)
90 die("error registering py script extension");
91
92 scripting_context = malloc(sizeof(struct scripting_context));
93}
94
95#ifdef NO_LIBPYTHON
96void setup_python_scripting(void)
97{
98 register_python_scripting(&python_scripting_unsupported_ops);
99}
100#else
101extern struct scripting_ops python_scripting_ops;
102
103void setup_python_scripting(void)
104{
105 register_python_scripting(&python_scripting_ops);
106}
107#endif
108
109static void print_perl_unsupported_msg(void)
110{
111 fprintf(stderr, "Perl scripting not supported."
112 " Install libperl and rebuild perf to enable it.\n"
113 "For example:\n # apt-get install libperl-dev (ubuntu)"
114 "\n # yum install 'perl(ExtUtils::Embed)' (Fedora)"
115 "\n etc.\n");
116}
117
118static int perl_start_script_unsupported(const char *script __unused,
119 int argc __unused,
120 const char **argv __unused)
121{
122 print_perl_unsupported_msg();
123
124 return -1;
125}
126
127static int perl_generate_script_unsupported(struct pevent *pevent __unused,
128 const char *outfile __unused)
129{
130 print_perl_unsupported_msg();
131
132 return -1;
133}
134
135struct scripting_ops perl_scripting_unsupported_ops = {
136 .name = "Perl",
137 .start_script = perl_start_script_unsupported,
138 .stop_script = stop_script_unsupported,
139 .process_event = process_event_unsupported,
140 .generate_script = perl_generate_script_unsupported,
141};
142
143static void register_perl_scripting(struct scripting_ops *scripting_ops)
144{
145 int err;
146 err = script_spec_register("Perl", scripting_ops);
147 if (err)
148 die("error registering Perl script extension");
149
150 err = script_spec_register("pl", scripting_ops);
151 if (err)
152 die("error registering pl script extension");
153
154 scripting_context = malloc(sizeof(struct scripting_context));
155}
156
157#ifdef NO_LIBPERL
158void setup_perl_scripting(void)
159{
160 register_perl_scripting(&perl_scripting_unsupported_ops);
161}
162#else
163extern struct scripting_ops perl_scripting_ops;
164
165void setup_perl_scripting(void)
166{
167 register_perl_scripting(&perl_scripting_ops);
168}
169#endif