summaryrefslogtreecommitdiff
path: root/tools/perf/util/trace-event-scripting.c
blob: 474aa7a7df43e178717c7808c2ee279c4d026fb2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
/*
 * 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 "util.h"
#include "trace-event.h"

struct scripting_context *scripting_context;

static int stop_script_unsupported(void)
{
	return 0;
}

static void process_event_unsupported(union perf_event *event __unused,
				      struct pevent *pevent __unused,
				      struct perf_sample *sample __unused,
				      struct perf_evsel *evsel __unused,
				      struct machine *machine __unused,
				      struct thread *thread __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 __unused,
					   int argc __unused,
					   const char **argv __unused)
{
	print_python_unsupported_msg();

	return -1;
}

static int python_generate_script_unsupported(struct pevent *pevent __unused,
					      const char *outfile __unused)
{
	print_python_unsupported_msg();

	return -1;
}

struct scripting_ops python_scripting_unsupported_ops = {
	.name = "Python",
	.start_script = python_start_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)
{
	int err;
	err = script_spec_register("Python", scripting_ops);
	if (err)
		die("error registering Python script extension");

	err = script_spec_register("py", scripting_ops);
	if (err)
		die("error registering py script extension");

	scripting_context = malloc(sizeof(struct scripting_context));
}

#ifdef NO_LIBPYTHON
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 __unused,
					 int argc __unused,
					 const char **argv __unused)
{
	print_perl_unsupported_msg();

	return -1;
}

static int perl_generate_script_unsupported(struct pevent *pevent __unused,
					    const char *outfile __unused)
{
	print_perl_unsupported_msg();

	return -1;
}

struct scripting_ops perl_scripting_unsupported_ops = {
	.name = "Perl",
	.start_script = perl_start_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)
{
	int err;
	err = script_spec_register("Perl", scripting_ops);
	if (err)
		die("error registering Perl script extension");

	err = script_spec_register("pl", scripting_ops);
	if (err)
		die("error registering pl script extension");

	scripting_context = malloc(sizeof(struct scripting_context));
}

#ifdef NO_LIBPERL
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