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 33 static int flush_script_unsupported(void) 34 { 35 return 0; 36 } 37 38 static int stop_script_unsupported(void) 39 { 40 return 0; 41 } 42 43 static void process_event_unsupported(union perf_event *event __maybe_unused, 44 struct perf_sample *sample __maybe_unused, 45 struct perf_evsel *evsel __maybe_unused, 46 struct addr_location *al __maybe_unused) 47 { 48 } 49 50 static void print_python_unsupported_msg(void) 51 { 52 fprintf(stderr, "Python scripting not supported." 53 " Install libpython and rebuild perf to enable it.\n" 54 "For example:\n # apt-get install python-dev (ubuntu)" 55 "\n # yum install python-devel (Fedora)" 56 "\n etc.\n"); 57 } 58 59 static int python_start_script_unsupported(const char *script __maybe_unused, 60 int argc __maybe_unused, 61 const char **argv __maybe_unused) 62 { 63 print_python_unsupported_msg(); 64 65 return -1; 66 } 67 68 static int python_generate_script_unsupported(struct pevent *pevent 69 __maybe_unused, 70 const char *outfile 71 __maybe_unused) 72 { 73 print_python_unsupported_msg(); 74 75 return -1; 76 } 77 78 struct scripting_ops python_scripting_unsupported_ops = { 79 .name = "Python", 80 .start_script = python_start_script_unsupported, 81 .flush_script = flush_script_unsupported, 82 .stop_script = stop_script_unsupported, 83 .process_event = process_event_unsupported, 84 .generate_script = python_generate_script_unsupported, 85 }; 86 87 static void register_python_scripting(struct scripting_ops *scripting_ops) 88 { 89 int err; 90 err = script_spec_register("Python", scripting_ops); 91 if (err) 92 die("error registering Python script extension"); 93 94 err = script_spec_register("py", scripting_ops); 95 if (err) 96 die("error registering py script extension"); 97 98 scripting_context = malloc(sizeof(struct scripting_context)); 99 } 100 101 #ifdef NO_LIBPYTHON 102 void setup_python_scripting(void) 103 { 104 register_python_scripting(&python_scripting_unsupported_ops); 105 } 106 #else 107 extern struct scripting_ops python_scripting_ops; 108 109 void setup_python_scripting(void) 110 { 111 register_python_scripting(&python_scripting_ops); 112 } 113 #endif 114 115 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 } 123 124 static int perl_start_script_unsupported(const char *script __maybe_unused, 125 int argc __maybe_unused, 126 const char **argv __maybe_unused) 127 { 128 print_perl_unsupported_msg(); 129 130 return -1; 131 } 132 133 static int perl_generate_script_unsupported(struct pevent *pevent 134 __maybe_unused, 135 const char *outfile __maybe_unused) 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, 145 .flush_script = flush_script_unsupported, 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 { 153 int err; 154 err = script_spec_register("Perl", scripting_ops); 155 if (err) 156 die("error registering Perl script extension"); 157 158 err = script_spec_register("pl", scripting_ops); 159 if (err) 160 die("error registering pl script extension"); 161 162 scripting_context = malloc(sizeof(struct scripting_context)); 163 } 164 165 #ifdef NO_LIBPERL 166 void setup_perl_scripting(void) 167 { 168 register_perl_scripting(&perl_scripting_unsupported_ops); 169 } 170 #else 171 extern struct scripting_ops perl_scripting_ops; 172 173 void setup_perl_scripting(void) 174 { 175 register_perl_scripting(&perl_scripting_ops); 176 } 177 #endif 178