[mirror_ubuntu-jammy-kernel.git] / tools / perf / util / trace-event-scripting.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 <linux/zalloc.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 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
Commit	Line	Data
1a59d1b8	1	// SPDX-License-Identifier: GPL-2.0-or-later
82d156cd TZ	2	/*
	3	* trace-event-scripting. Scripting engine common and initialization code.
	4	*
	5	* Copyright (C) 2009-2010 Tom Zanussi <tzanussi@gmail.com>
82d156cd TZ	6	*/
	7
	8	#include <stdio.h>
	9	#include <stdlib.h>
	10	#include <string.h>
82d156cd TZ	11	#include <errno.h>
82d156cd TZ	12
9a8860bb	13	#include "debug.h"
82d156cd	14	#include "trace-event.h"
7f7c536f	15	#include <linux/zalloc.h>
82d156cd TZ	16
	17	struct scripting_context *scripting_context;
	18
d445dd2a AH	19	static int flush_script_unsupported(void)
	20	{
	21	return 0;
	22	}
	23
82d156cd TZ	24	static int stop_script_unsupported(void)
	25	{
	26	return 0;
	27	}
	28
1d037ca1 IT	29	static void process_event_unsupported(union perf_event *event __maybe_unused,
1d037ca1 IT	30	struct perf_sample *sample __maybe_unused,
32dcd021	31	struct evsel *evsel __maybe_unused,
cc22e575	32	struct addr_location *al __maybe_unused)
82d156cd TZ	33	{
	34	}
	35
7e4b21b8 TZ	36	static void print_python_unsupported_msg(void)
	37	{
	38	fprintf(stderr, "Python scripting not supported."
	39	" Install libpython and rebuild perf to enable it.\n"
	40	"For example:\n # apt-get install python-dev (ubuntu)"
	41	"\n # yum install python-devel (Fedora)"
	42	"\n etc.\n");
	43	}
	44
1d037ca1 IT	45	static int python_start_script_unsupported(const char *script __maybe_unused,
	46	int argc __maybe_unused,
	47	const char **argv __maybe_unused)
7e4b21b8 TZ	48	{
	49	print_python_unsupported_msg();
	50
	51	return -1;
	52	}
	53
096177a8	54	static int python_generate_script_unsupported(struct tep_handle *pevent
1d037ca1 IT	55	__maybe_unused,
	56	const char *outfile
	57	__maybe_unused)
7e4b21b8 TZ	58	{
	59	print_python_unsupported_msg();
	60
	61	return -1;
	62	}
	63
	64	struct scripting_ops python_scripting_unsupported_ops = {
	65	.name = "Python",
	66	.start_script = python_start_script_unsupported,
d445dd2a	67	.flush_script = flush_script_unsupported,
7e4b21b8 TZ	68	.stop_script = stop_script_unsupported,
	69	.process_event = process_event_unsupported,
	70	.generate_script = python_generate_script_unsupported,
	71	};
	72
	73	static void register_python_scripting(struct scripting_ops *scripting_ops)
	74	{
cf346d5b ACM	75	if (scripting_context == NULL)
cf346d5b ACM	76	scripting_context = malloc(sizeof(*scripting_context));
9a8860bb ACM	77
	78	if (scripting_context == NULL \|\|
	79	script_spec_register("Python", scripting_ops) \|\|
	80	script_spec_register("py", scripting_ops)) {
	81	pr_err("Error registering Python script extension: disabling it\n");
	82	zfree(&scripting_context);
	83	}
7e4b21b8 TZ	84	}
7e4b21b8 TZ	85
90ce61b9	86	#ifndef HAVE_LIBPYTHON_SUPPORT
7e4b21b8 TZ	87	void setup_python_scripting(void)
	88	{
	89	register_python_scripting(&python_scripting_unsupported_ops);
	90	}
	91	#else
0f940cb7	92	extern struct scripting_ops python_scripting_ops;
7e4b21b8 TZ	93
	94	void setup_python_scripting(void)
	95	{
	96	register_python_scripting(&python_scripting_ops);
	97	}
	98	#endif
	99
82d156cd TZ	100	static void print_perl_unsupported_msg(void)
	101	{
	102	fprintf(stderr, "Perl scripting not supported."
	103	" Install libperl and rebuild perf to enable it.\n"
	104	"For example:\n # apt-get install libperl-dev (ubuntu)"
	105	"\n # yum install 'perl(ExtUtils::Embed)' (Fedora)"
	106	"\n etc.\n");
	107	}
	108
1d037ca1 IT	109	static int perl_start_script_unsupported(const char *script __maybe_unused,
	110	int argc __maybe_unused,
	111	const char **argv __maybe_unused)
82d156cd TZ	112	{
	113	print_perl_unsupported_msg();
	114
	115	return -1;
	116	}
	117
096177a8	118	static int perl_generate_script_unsupported(struct tep_handle *pevent
1d037ca1 IT	119	__maybe_unused,
1d037ca1 IT	120	const char *outfile __maybe_unused)
82d156cd TZ	121	{
	122	print_perl_unsupported_msg();
	123
	124	return -1;
	125	}
	126
	127	struct scripting_ops perl_scripting_unsupported_ops = {
	128	.name = "Perl",
	129	.start_script = perl_start_script_unsupported,
d445dd2a	130	.flush_script = flush_script_unsupported,
82d156cd TZ	131	.stop_script = stop_script_unsupported,
	132	.process_event = process_event_unsupported,
	133	.generate_script = perl_generate_script_unsupported,
	134	};
	135
	136	static void register_perl_scripting(struct scripting_ops *scripting_ops)
	137	{
cf346d5b ACM	138	if (scripting_context == NULL)
cf346d5b ACM	139	scripting_context = malloc(sizeof(*scripting_context));
9a8860bb ACM	140
	141	if (scripting_context == NULL \|\|
	142	script_spec_register("Perl", scripting_ops) \|\|
	143	script_spec_register("pl", scripting_ops)) {
	144	pr_err("Error registering Perl script extension: disabling it\n");
	145	zfree(&scripting_context);
	146	}
82d156cd TZ	147	}
82d156cd TZ	148
90ce61b9	149	#ifndef HAVE_LIBPERL_SUPPORT
82d156cd TZ	150	void setup_perl_scripting(void)
	151	{
	152	register_perl_scripting(&perl_scripting_unsupported_ops);
	153	}
	154	#else
0f940cb7	155	extern struct scripting_ops perl_scripting_ops;
82d156cd TZ	156
	157	void setup_perl_scripting(void)
	158	{
	159	register_perl_scripting(&perl_scripting_ops);
	160	}
	161	#endif