/* * trace-event-scripting. Scripting engine common and initialization code. * * Copyright (C) 2009-2010 Tom Zanussi <tzanussi@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> #include "../perf.h" #include "debug.h" #include "util.h" #include "trace-event.h" struct scripting_context *scripting_context; static int flush_script_unsupported(void) { return 0; } static int stop_script_unsupported(void) { return 0; } static void process_event_unsupported(union perf_event *event __maybe_unused, struct perf_sample *sample __maybe_unused, struct perf_evsel *evsel __maybe_unused, struct addr_location *al __maybe_unused) { } static void print_python_unsupported_msg(void) { fprintf(stderr, "Python scripting not supported." " Install libpython and rebuild perf to enable it.\n" "For example:\n # apt-get install python-dev (ubuntu)" "\n # yum install python-devel (Fedora)" "\n etc.\n"); } static int python_start_script_unsupported(const char *script __maybe_unused, int argc __maybe_unused, const char **argv __maybe_unused) { print_python_unsupported_msg(); return -1; } static int python_generate_script_unsupported(struct pevent *pevent __maybe_unused, const char *outfile __maybe_unused) { print_python_unsupported_msg(); return -1; } struct scripting_ops python_scripting_unsupported_ops = { .name = "Python", .start_script = python_start_script_unsupported, .flush_script = flush_script_unsupported, .stop_script = stop_script_unsupported, .process_event = process_event_unsupported, .generate_script = python_generate_script_unsupported, }; static void register_python_scripting(struct scripting_ops *scripting_ops) { if (scripting_context == NULL) scripting_context = malloc(sizeof(*scripting_context)); if (scripting_context == NULL || script_spec_register("Python", scripting_ops) || script_spec_register("py", scripting_ops)) { pr_err("Error registering Python script extension: disabling it\n"); zfree(&scripting_context); } } #ifdef NO_LIBPYTHON void setup_python_scripting(void) { register_python_scripting(&python_scripting_unsupported_ops); } #else extern struct scripting_ops python_scripting_ops; void setup_python_scripting(void) { register_python_scripting(&python_scripting_ops); } #endif static void print_perl_unsupported_msg(void) { fprintf(stderr, "Perl scripting not supported." " Install libperl and rebuild perf to enable it.\n" "For example:\n # apt-get install libperl-dev (ubuntu)" "\n # yum install 'perl(ExtUtils::Embed)' (Fedora)" "\n etc.\n"); } static int perl_start_script_unsupported(const char *script __maybe_unused, int argc __maybe_unused, const char **argv __maybe_unused) { print_perl_unsupported_msg(); return -1; } static int perl_generate_script_unsupported(struct pevent *pevent __maybe_unused, const char *outfile __maybe_unused) { print_perl_unsupported_msg(); return -1; } struct scripting_ops perl_scripting_unsupported_ops = { .name = "Perl", .start_script = perl_start_script_unsupported, .flush_script = flush_script_unsupported, .stop_script = stop_script_unsupported, .process_event = process_event_unsupported, .generate_script = perl_generate_script_unsupported, }; static void register_perl_scripting(struct scripting_ops *scripting_ops) { if (scripting_context == NULL) scripting_context = malloc(sizeof(*scripting_context)); if (scripting_context == NULL || script_spec_register("Perl", scripting_ops) || script_spec_register("pl", scripting_ops)) { pr_err("Error registering Perl script extension: disabling it\n"); zfree(&scripting_context); } } #ifdef NO_LIBPERL void setup_perl_scripting(void) { register_perl_scripting(&perl_scripting_unsupported_ops); } #else extern struct scripting_ops perl_scripting_ops; void setup_perl_scripting(void) { register_perl_scripting(&perl_scripting_ops); } #endif