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82d156cd TZ |
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> | |
82d156cd TZ |
25 | #include <errno.h> |
26 | ||
27 | #include "../perf.h" | |
9a8860bb | 28 | #include "debug.h" |
82d156cd TZ |
29 | #include "util.h" |
30 | #include "trace-event.h" | |
31 | ||
32 | struct scripting_context *scripting_context; | |
33 | ||
d445dd2a AH |
34 | static int flush_script_unsupported(void) |
35 | { | |
36 | return 0; | |
37 | } | |
38 | ||
82d156cd TZ |
39 | static int stop_script_unsupported(void) |
40 | { | |
41 | return 0; | |
42 | } | |
43 | ||
1d037ca1 IT |
44 | static void process_event_unsupported(union perf_event *event __maybe_unused, |
45 | struct perf_sample *sample __maybe_unused, | |
46 | struct perf_evsel *evsel __maybe_unused, | |
cc22e575 | 47 | struct addr_location *al __maybe_unused) |
82d156cd TZ |
48 | { |
49 | } | |
50 | ||
7e4b21b8 TZ |
51 | static void print_python_unsupported_msg(void) |
52 | { | |
53 | fprintf(stderr, "Python scripting not supported." | |
54 | " Install libpython and rebuild perf to enable it.\n" | |
55 | "For example:\n # apt-get install python-dev (ubuntu)" | |
56 | "\n # yum install python-devel (Fedora)" | |
57 | "\n etc.\n"); | |
58 | } | |
59 | ||
1d037ca1 IT |
60 | static int python_start_script_unsupported(const char *script __maybe_unused, |
61 | int argc __maybe_unused, | |
62 | const char **argv __maybe_unused) | |
7e4b21b8 TZ |
63 | { |
64 | print_python_unsupported_msg(); | |
65 | ||
66 | return -1; | |
67 | } | |
68 | ||
1d037ca1 IT |
69 | static int python_generate_script_unsupported(struct pevent *pevent |
70 | __maybe_unused, | |
71 | const char *outfile | |
72 | __maybe_unused) | |
7e4b21b8 TZ |
73 | { |
74 | print_python_unsupported_msg(); | |
75 | ||
76 | return -1; | |
77 | } | |
78 | ||
79 | struct scripting_ops python_scripting_unsupported_ops = { | |
80 | .name = "Python", | |
81 | .start_script = python_start_script_unsupported, | |
d445dd2a | 82 | .flush_script = flush_script_unsupported, |
7e4b21b8 TZ |
83 | .stop_script = stop_script_unsupported, |
84 | .process_event = process_event_unsupported, | |
85 | .generate_script = python_generate_script_unsupported, | |
86 | }; | |
87 | ||
88 | static void register_python_scripting(struct scripting_ops *scripting_ops) | |
89 | { | |
cf346d5b ACM |
90 | if (scripting_context == NULL) |
91 | scripting_context = malloc(sizeof(*scripting_context)); | |
9a8860bb ACM |
92 | |
93 | if (scripting_context == NULL || | |
94 | script_spec_register("Python", scripting_ops) || | |
95 | script_spec_register("py", scripting_ops)) { | |
96 | pr_err("Error registering Python script extension: disabling it\n"); | |
97 | zfree(&scripting_context); | |
98 | } | |
7e4b21b8 TZ |
99 | } |
100 | ||
101 | #ifdef NO_LIBPYTHON | |
102 | void setup_python_scripting(void) | |
103 | { | |
104 | register_python_scripting(&python_scripting_unsupported_ops); | |
105 | } | |
106 | #else | |
0f940cb7 | 107 | extern struct scripting_ops python_scripting_ops; |
7e4b21b8 TZ |
108 | |
109 | void setup_python_scripting(void) | |
110 | { | |
111 | register_python_scripting(&python_scripting_ops); | |
112 | } | |
113 | #endif | |
114 | ||
82d156cd TZ |
115 | static void print_perl_unsupported_msg(void) |
116 | { | |
117 | fprintf(stderr, "Perl scripting not supported." | |
118 | " Install libperl and rebuild perf to enable it.\n" | |
119 | "For example:\n # apt-get install libperl-dev (ubuntu)" | |
120 | "\n # yum install 'perl(ExtUtils::Embed)' (Fedora)" | |
121 | "\n etc.\n"); | |
122 | } | |
123 | ||
1d037ca1 IT |
124 | static int perl_start_script_unsupported(const char *script __maybe_unused, |
125 | int argc __maybe_unused, | |
126 | const char **argv __maybe_unused) | |
82d156cd TZ |
127 | { |
128 | print_perl_unsupported_msg(); | |
129 | ||
130 | return -1; | |
131 | } | |
132 | ||
1d037ca1 IT |
133 | static int perl_generate_script_unsupported(struct pevent *pevent |
134 | __maybe_unused, | |
135 | const char *outfile __maybe_unused) | |
82d156cd TZ |
136 | { |
137 | print_perl_unsupported_msg(); | |
138 | ||
139 | return -1; | |
140 | } | |
141 | ||
142 | struct scripting_ops perl_scripting_unsupported_ops = { | |
143 | .name = "Perl", | |
144 | .start_script = perl_start_script_unsupported, | |
d445dd2a | 145 | .flush_script = flush_script_unsupported, |
82d156cd TZ |
146 | .stop_script = stop_script_unsupported, |
147 | .process_event = process_event_unsupported, | |
148 | .generate_script = perl_generate_script_unsupported, | |
149 | }; | |
150 | ||
151 | static void register_perl_scripting(struct scripting_ops *scripting_ops) | |
152 | { | |
cf346d5b ACM |
153 | if (scripting_context == NULL) |
154 | scripting_context = malloc(sizeof(*scripting_context)); | |
9a8860bb ACM |
155 | |
156 | if (scripting_context == NULL || | |
157 | script_spec_register("Perl", scripting_ops) || | |
158 | script_spec_register("pl", scripting_ops)) { | |
159 | pr_err("Error registering Perl script extension: disabling it\n"); | |
160 | zfree(&scripting_context); | |
161 | } | |
82d156cd TZ |
162 | } |
163 | ||
164 | #ifdef NO_LIBPERL | |
165 | void setup_perl_scripting(void) | |
166 | { | |
167 | register_perl_scripting(&perl_scripting_unsupported_ops); | |
168 | } | |
169 | #else | |
0f940cb7 | 170 | extern struct scripting_ops perl_scripting_ops; |
82d156cd TZ |
171 | |
172 | void setup_perl_scripting(void) | |
173 | { | |
174 | register_perl_scripting(&perl_scripting_ops); | |
175 | } | |
176 | #endif |