mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-08 11:34:11 +08:00
67e50ce0e3
This is preparation for allowing a script to set the itrace options for the session if they have not already been set. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: https://lore.kernel.org/r/20210530192308.7382-5-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
188 lines
4.7 KiB
C
188 lines
4.7 KiB
C
// 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
|