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