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Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
| -rw-r--r-- | tools/perf/util/trace-event-scripting.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c new file mode 100644 index 000000000..7172ca052 --- /dev/null +++ b/tools/perf/util/trace-event-scripting.c @@ -0,0 +1,187 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * trace-event-scripting. Scripting engine common and initialization code. + * + * Copyright (C) 2009-2010 Tom Zanussi <tzanussi@gmail.com> + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> + +#include "debug.h" +#include "trace-event.h" +#include "event.h" +#include "evsel.h" +#include <linux/zalloc.h> + +struct scripting_context *scripting_context; + +void scripting_context__update(struct scripting_context *c, + union perf_event *event, + struct perf_sample *sample, + struct evsel *evsel, + struct addr_location *al, + struct addr_location *addr_al) +{ + c->event_data = sample->raw_data; + if (evsel->tp_format) + c->pevent = evsel->tp_format->tep; + else + c->pevent = NULL; + c->event = event; + c->sample = sample; + c->evsel = evsel; + c->al = al; + c->addr_al = addr_al; +} + +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 evsel *evsel __maybe_unused, + struct addr_location *al __maybe_unused, + struct addr_location *addr_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, + struct perf_session *session __maybe_unused) +{ + print_python_unsupported_msg(); + + return -1; +} + +static int python_generate_script_unsupported(struct tep_handle *pevent + __maybe_unused, + const char *outfile + __maybe_unused) +{ + print_python_unsupported_msg(); + + return -1; +} + +struct scripting_ops python_scripting_unsupported_ops = { + .name = "Python", + .dirname = "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); + } +} + +#ifndef HAVE_LIBPYTHON_SUPPORT +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, + struct perf_session *session __maybe_unused) +{ + print_perl_unsupported_msg(); + + return -1; +} + +static int perl_generate_script_unsupported(struct tep_handle *pevent + __maybe_unused, + const char *outfile __maybe_unused) +{ + print_perl_unsupported_msg(); + + return -1; +} + +struct scripting_ops perl_scripting_unsupported_ops = { + .name = "Perl", + .dirname = "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); + } +} + +#ifndef HAVE_LIBPERL_SUPPORT +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 |