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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 <ctype.h> | |
26 | #include <errno.h> | |
27 | ||
28 | #include "../perf.h" | |
29 | #include "util.h" | |
30 | #include "trace-event.h" | |
31 | ||
32 | struct scripting_context *scripting_context; | |
33 | ||
34 | static int stop_script_unsupported(void) | |
35 | { | |
36 | return 0; | |
37 | } | |
38 | ||
39 | static void process_event_unsupported(int cpu __unused, | |
40 | void *data __unused, | |
41 | int size __unused, | |
42 | unsigned long long nsecs __unused, | |
43 | char *comm __unused) | |
44 | { | |
45 | } | |
46 | ||
47 | static void print_perl_unsupported_msg(void) | |
48 | { | |
49 | fprintf(stderr, "Perl scripting not supported." | |
50 | " Install libperl and rebuild perf to enable it.\n" | |
51 | "For example:\n # apt-get install libperl-dev (ubuntu)" | |
52 | "\n # yum install 'perl(ExtUtils::Embed)' (Fedora)" | |
53 | "\n etc.\n"); | |
54 | } | |
55 | ||
56 | static int perl_start_script_unsupported(const char *script __unused, | |
57 | int argc __unused, | |
58 | const char **argv __unused) | |
59 | { | |
60 | print_perl_unsupported_msg(); | |
61 | ||
62 | return -1; | |
63 | } | |
64 | ||
65 | static int perl_generate_script_unsupported(const char *outfile __unused) | |
66 | { | |
67 | print_perl_unsupported_msg(); | |
68 | ||
69 | return -1; | |
70 | } | |
71 | ||
72 | struct scripting_ops perl_scripting_unsupported_ops = { | |
73 | .name = "Perl", | |
74 | .start_script = perl_start_script_unsupported, | |
75 | .stop_script = stop_script_unsupported, | |
76 | .process_event = process_event_unsupported, | |
77 | .generate_script = perl_generate_script_unsupported, | |
78 | }; | |
79 | ||
80 | static void register_perl_scripting(struct scripting_ops *scripting_ops) | |
81 | { | |
82 | int err; | |
83 | err = script_spec_register("Perl", scripting_ops); | |
84 | if (err) | |
85 | die("error registering Perl script extension"); | |
86 | ||
87 | err = script_spec_register("pl", scripting_ops); | |
88 | if (err) | |
89 | die("error registering pl script extension"); | |
90 | ||
91 | scripting_context = malloc(sizeof(struct scripting_context)); | |
92 | } | |
93 | ||
94 | #ifdef NO_LIBPERL | |
95 | void setup_perl_scripting(void) | |
96 | { | |
97 | register_perl_scripting(&perl_scripting_unsupported_ops); | |
98 | } | |
99 | #else | |
100 | struct scripting_ops perl_scripting_ops; | |
101 | ||
102 | void setup_perl_scripting(void) | |
103 | { | |
104 | register_perl_scripting(&perl_scripting_ops); | |
105 | } | |
106 | #endif |