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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
82d156cd TZ |
2 | /* |
3 | * trace-event-scripting. Scripting engine common and initialization code. | |
4 | * | |
5 | * Copyright (C) 2009-2010 Tom Zanussi <tzanussi@gmail.com> | |
82d156cd TZ |
6 | */ |
7 | ||
8 | #include <stdio.h> | |
9 | #include <stdlib.h> | |
10 | #include <string.h> | |
82d156cd TZ |
11 | #include <errno.h> |
12 | ||
13 | #include "../perf.h" | |
9a8860bb | 14 | #include "debug.h" |
82d156cd TZ |
15 | #include "util.h" |
16 | #include "trace-event.h" | |
17 | ||
18 | struct scripting_context *scripting_context; | |
19 | ||
d445dd2a AH |
20 | static int flush_script_unsupported(void) |
21 | { | |
22 | return 0; | |
23 | } | |
24 | ||
82d156cd TZ |
25 | static int stop_script_unsupported(void) |
26 | { | |
27 | return 0; | |
28 | } | |
29 | ||
1d037ca1 IT |
30 | static void process_event_unsupported(union perf_event *event __maybe_unused, |
31 | struct perf_sample *sample __maybe_unused, | |
32 | struct perf_evsel *evsel __maybe_unused, | |
cc22e575 | 33 | struct addr_location *al __maybe_unused) |
82d156cd TZ |
34 | { |
35 | } | |
36 | ||
7e4b21b8 TZ |
37 | static void print_python_unsupported_msg(void) |
38 | { | |
39 | fprintf(stderr, "Python scripting not supported." | |
40 | " Install libpython and rebuild perf to enable it.\n" | |
41 | "For example:\n # apt-get install python-dev (ubuntu)" | |
42 | "\n # yum install python-devel (Fedora)" | |
43 | "\n etc.\n"); | |
44 | } | |
45 | ||
1d037ca1 IT |
46 | static int python_start_script_unsupported(const char *script __maybe_unused, |
47 | int argc __maybe_unused, | |
48 | const char **argv __maybe_unused) | |
7e4b21b8 TZ |
49 | { |
50 | print_python_unsupported_msg(); | |
51 | ||
52 | return -1; | |
53 | } | |
54 | ||
096177a8 | 55 | static int python_generate_script_unsupported(struct tep_handle *pevent |
1d037ca1 IT |
56 | __maybe_unused, |
57 | const char *outfile | |
58 | __maybe_unused) | |
7e4b21b8 TZ |
59 | { |
60 | print_python_unsupported_msg(); | |
61 | ||
62 | return -1; | |
63 | } | |
64 | ||
65 | struct scripting_ops python_scripting_unsupported_ops = { | |
66 | .name = "Python", | |
67 | .start_script = python_start_script_unsupported, | |
d445dd2a | 68 | .flush_script = flush_script_unsupported, |
7e4b21b8 TZ |
69 | .stop_script = stop_script_unsupported, |
70 | .process_event = process_event_unsupported, | |
71 | .generate_script = python_generate_script_unsupported, | |
72 | }; | |
73 | ||
74 | static void register_python_scripting(struct scripting_ops *scripting_ops) | |
75 | { | |
cf346d5b ACM |
76 | if (scripting_context == NULL) |
77 | scripting_context = malloc(sizeof(*scripting_context)); | |
9a8860bb ACM |
78 | |
79 | if (scripting_context == NULL || | |
80 | script_spec_register("Python", scripting_ops) || | |
81 | script_spec_register("py", scripting_ops)) { | |
82 | pr_err("Error registering Python script extension: disabling it\n"); | |
83 | zfree(&scripting_context); | |
84 | } | |
7e4b21b8 TZ |
85 | } |
86 | ||
90ce61b9 | 87 | #ifndef HAVE_LIBPYTHON_SUPPORT |
7e4b21b8 TZ |
88 | void setup_python_scripting(void) |
89 | { | |
90 | register_python_scripting(&python_scripting_unsupported_ops); | |
91 | } | |
92 | #else | |
0f940cb7 | 93 | extern struct scripting_ops python_scripting_ops; |
7e4b21b8 TZ |
94 | |
95 | void setup_python_scripting(void) | |
96 | { | |
97 | register_python_scripting(&python_scripting_ops); | |
98 | } | |
99 | #endif | |
100 | ||
82d156cd TZ |
101 | static void print_perl_unsupported_msg(void) |
102 | { | |
103 | fprintf(stderr, "Perl scripting not supported." | |
104 | " Install libperl and rebuild perf to enable it.\n" | |
105 | "For example:\n # apt-get install libperl-dev (ubuntu)" | |
106 | "\n # yum install 'perl(ExtUtils::Embed)' (Fedora)" | |
107 | "\n etc.\n"); | |
108 | } | |
109 | ||
1d037ca1 IT |
110 | static int perl_start_script_unsupported(const char *script __maybe_unused, |
111 | int argc __maybe_unused, | |
112 | const char **argv __maybe_unused) | |
82d156cd TZ |
113 | { |
114 | print_perl_unsupported_msg(); | |
115 | ||
116 | return -1; | |
117 | } | |
118 | ||
096177a8 | 119 | static int perl_generate_script_unsupported(struct tep_handle *pevent |
1d037ca1 IT |
120 | __maybe_unused, |
121 | const char *outfile __maybe_unused) | |
82d156cd TZ |
122 | { |
123 | print_perl_unsupported_msg(); | |
124 | ||
125 | return -1; | |
126 | } | |
127 | ||
128 | struct scripting_ops perl_scripting_unsupported_ops = { | |
129 | .name = "Perl", | |
130 | .start_script = perl_start_script_unsupported, | |
d445dd2a | 131 | .flush_script = flush_script_unsupported, |
82d156cd TZ |
132 | .stop_script = stop_script_unsupported, |
133 | .process_event = process_event_unsupported, | |
134 | .generate_script = perl_generate_script_unsupported, | |
135 | }; | |
136 | ||
137 | static void register_perl_scripting(struct scripting_ops *scripting_ops) | |
138 | { | |
cf346d5b ACM |
139 | if (scripting_context == NULL) |
140 | scripting_context = malloc(sizeof(*scripting_context)); | |
9a8860bb ACM |
141 | |
142 | if (scripting_context == NULL || | |
143 | script_spec_register("Perl", scripting_ops) || | |
144 | script_spec_register("pl", scripting_ops)) { | |
145 | pr_err("Error registering Perl script extension: disabling it\n"); | |
146 | zfree(&scripting_context); | |
147 | } | |
82d156cd TZ |
148 | } |
149 | ||
90ce61b9 | 150 | #ifndef HAVE_LIBPERL_SUPPORT |
82d156cd TZ |
151 | void setup_perl_scripting(void) |
152 | { | |
153 | register_perl_scripting(&perl_scripting_unsupported_ops); | |
154 | } | |
155 | #else | |
0f940cb7 | 156 | extern struct scripting_ops perl_scripting_ops; |
82d156cd TZ |
157 | |
158 | void setup_perl_scripting(void) | |
159 | { | |
160 | register_perl_scripting(&perl_scripting_ops); | |
161 | } | |
162 | #endif |