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