mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-24 17:59:32 +00:00
![Tzvetomir Stoyanov (VMware)](/assets/img/avatar_default.png)
In order to make libtraceevent into a proper library, variables, data structures and functions require a unique prefix to prevent name space conflicts. That prefix will be "tep_" and not "pevent_". This changes the struct pevent to struct tep_handle. Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Yordan Karadzhov (VMware) <y.karadz@gmail.com> Cc: linux-trace-devel@vger.kernel.org Link: http://lkml.kernel.org/r/20180808180659.706175783@goodmis.org Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
176 lines
4.7 KiB
C
176 lines
4.7 KiB
C
/*
|
|
* 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 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",
|
|
.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)
|
|
{
|
|
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",
|
|
.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
|