aboutsummaryrefslogtreecommitdiffstats
path: root/tools/perf/builtin-kvm.c
blob: b1c6b38567f0a1a769f3f5e328262bcfbc478b09 (plain) (blame)
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
#include "builtin.h"
#include "perf.h"

#include "util/util.h"
#include "util/cache.h"
#include "util/symbol.h"
#include "util/thread.h"
#include "util/header.h"
#include "util/session.h"

#include "util/parse-options.h"
#include "util/trace-event.h"

#include "util/debug.h"

#include <sys/prctl.h>

#include <semaphore.h>
#include <pthread.h>
#include <math.h>

static char			*file_name;
static char			name_buffer[256];

bool				perf_host = 1;
bool				perf_guest;

static const char * const kvm_usage[] = {
	"perf kvm [<options>] {top|record|report|diff|buildid-list}",
	NULL
};

static const struct option kvm_options[] = {
	OPT_STRING('i', "input", &file_name, "file",
		   "Input file name"),
	OPT_STRING('o', "output", &file_name, "file",
		   "Output file name"),
	OPT_BOOLEAN(0, "guest", &perf_guest,
		    "Collect guest os data"),
	OPT_BOOLEAN(0, "host", &perf_host,
		    "Collect guest os data"),
	OPT_STRING(0, "guestmount", &symbol_conf.guestmount, "directory",
		   "guest mount directory under which every guest os"
		   " instance has a subdir"),
	OPT_STRING(0, "guestvmlinux", &symbol_conf.default_guest_vmlinux_name,
		   "file", "file saving guest os vmlinux"),
	OPT_STRING(0, "guestkallsyms", &symbol_conf.default_guest_kallsyms,
		   "file", "file saving guest os /proc/kallsyms"),
	OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules,
		   "file", "file saving guest os /proc/modules"),
	OPT_END()
};

static int __cmd_record(int argc, const char **argv)
{
	int rec_argc, i = 0, j;
	const char **rec_argv;

	rec_argc = argc + 2;
	rec_argv = calloc(rec_argc + 1, sizeof(char *));
	rec_argv[i++] = strdup("record");
	rec_argv[i++] = strdup("-o");
	rec_argv[i++] = strdup(file_name);
	for (j = 1; j < argc; j++, i++)
		rec_argv[i] = argv[j];

	BUG_ON(i != rec_argc);

	return cmd_record(i, rec_argv, NULL);
}

static int __cmd_report(int argc, const char **argv)
{
	int rec_argc, i = 0, j;
	const char **rec_argv;

	rec_argc = argc + 2;
	rec_argv = calloc(rec_argc + 1, sizeof(char *));
	rec_argv[i++] = strdup("report");
	rec_argv[i++] = strdup("-i");
	rec_argv[i++] = strdup(file_name);
	for (j = 1; j < argc; j++, i++)
		rec_argv[i] = argv[j];

	BUG_ON(i != rec_argc);

	return cmd_report(i, rec_argv, NULL);
}

static int __cmd_buildid_list(int argc, const char **argv)
{
	int rec_argc, i = 0, j;
	const char **rec_argv;

	rec_argc = argc + 2;
	rec_argv = calloc(rec_argc + 1, sizeof(char *));
	rec_argv[i++] = strdup("buildid-list");
	rec_argv[i++] = strdup("-i");
	rec_argv[i++] = strdup(file_name);
	for (j = 1; j < argc; j++, i++)
		rec_argv[i] = argv[j];

	BUG_ON(i != rec_argc);

	return cmd_buildid_list(i, rec_argv, NULL);
}

int cmd_kvm(int argc, const char **argv, const char *prefix __used)
{
	perf_host = perf_guest = 0;

	argc = parse_options(argc, argv, kvm_options, kvm_usage,
			PARSE_OPT_STOP_AT_NON_OPTION);
	if (!argc)
		usage_with_options(kvm_usage, kvm_options);

	if (!perf_host)
		perf_guest = 1;

	if (!file_name) {
		if (perf_host && !perf_guest)
			sprintf(name_buffer, "perf.data.host");
		else if (!perf_host && perf_guest)
			sprintf(name_buffer, "perf.data.guest");
		else
			sprintf(name_buffer, "perf.data.kvm");
		file_name = name_buffer;
	}

	if (!strncmp(argv[0], "rec", 3))
		return __cmd_record(argc, argv);
	else if (!strncmp(argv[0], "rep", 3))
		return __cmd_report(argc, argv);
	else if (!strncmp(argv[0], "diff", 4))
		return cmd_diff(argc, argv, NULL);
	else if (!strncmp(argv[0], "top", 3))
		return cmd_top(argc, argv, NULL);
	else if (!strncmp(argv[0], "buildid-list", 12))
		return __cmd_buildid_list(argc, argv);
	else
		usage_with_options(kvm_usage, kvm_options);

	return 0;
}