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