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