Tom Zanussi | 82d156c | 2010-01-27 02:27:55 -0600 | [diff] [blame^] | 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 |