Root/tools/perf/builtin-kvm.c

1#include "builtin.h"
2#include "perf.h"
3
4#include "util/util.h"
5#include "util/cache.h"
6#include "util/symbol.h"
7#include "util/thread.h"
8#include "util/header.h"
9#include "util/session.h"
10
11#include "util/parse-options.h"
12#include "util/trace-event.h"
13
14#include "util/debug.h"
15
16#include <sys/prctl.h>
17
18#include <semaphore.h>
19#include <pthread.h>
20#include <math.h>
21
22static const char *file_name;
23static char name_buffer[256];
24
25static const char * const kvm_usage[] = {
26    "perf kvm [<options>] {top|record|report|diff|buildid-list}",
27    NULL
28};
29
30static const struct option kvm_options[] = {
31    OPT_STRING('i', "input", &file_name, "file",
32           "Input file name"),
33    OPT_STRING('o', "output", &file_name, "file",
34           "Output file name"),
35    OPT_BOOLEAN(0, "guest", &perf_guest,
36            "Collect guest os data"),
37    OPT_BOOLEAN(0, "host", &perf_host,
38            "Collect host os data"),
39    OPT_STRING(0, "guestmount", &symbol_conf.guestmount, "directory",
40           "guest mount directory under which every guest os"
41           " instance has a subdir"),
42    OPT_STRING(0, "guestvmlinux", &symbol_conf.default_guest_vmlinux_name,
43           "file", "file saving guest os vmlinux"),
44    OPT_STRING(0, "guestkallsyms", &symbol_conf.default_guest_kallsyms,
45           "file", "file saving guest os /proc/kallsyms"),
46    OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules,
47           "file", "file saving guest os /proc/modules"),
48    OPT_END()
49};
50
51static int __cmd_record(int argc, const char **argv)
52{
53    int rec_argc, i = 0, j;
54    const char **rec_argv;
55
56    rec_argc = argc + 2;
57    rec_argv = calloc(rec_argc + 1, sizeof(char *));
58    rec_argv[i++] = strdup("record");
59    rec_argv[i++] = strdup("-o");
60    rec_argv[i++] = strdup(file_name);
61    for (j = 1; j < argc; j++, i++)
62        rec_argv[i] = argv[j];
63
64    BUG_ON(i != rec_argc);
65
66    return cmd_record(i, rec_argv, NULL);
67}
68
69static int __cmd_report(int argc, const char **argv)
70{
71    int rec_argc, i = 0, j;
72    const char **rec_argv;
73
74    rec_argc = argc + 2;
75    rec_argv = calloc(rec_argc + 1, sizeof(char *));
76    rec_argv[i++] = strdup("report");
77    rec_argv[i++] = strdup("-i");
78    rec_argv[i++] = strdup(file_name);
79    for (j = 1; j < argc; j++, i++)
80        rec_argv[i] = argv[j];
81
82    BUG_ON(i != rec_argc);
83
84    return cmd_report(i, rec_argv, NULL);
85}
86
87static int __cmd_buildid_list(int argc, const char **argv)
88{
89    int rec_argc, i = 0, j;
90    const char **rec_argv;
91
92    rec_argc = argc + 2;
93    rec_argv = calloc(rec_argc + 1, sizeof(char *));
94    rec_argv[i++] = strdup("buildid-list");
95    rec_argv[i++] = strdup("-i");
96    rec_argv[i++] = strdup(file_name);
97    for (j = 1; j < argc; j++, i++)
98        rec_argv[i] = argv[j];
99
100    BUG_ON(i != rec_argc);
101
102    return cmd_buildid_list(i, rec_argv, NULL);
103}
104
105int cmd_kvm(int argc, const char **argv, const char *prefix __used)
106{
107    perf_host = 0;
108    perf_guest = 1;
109
110    argc = parse_options(argc, argv, kvm_options, kvm_usage,
111            PARSE_OPT_STOP_AT_NON_OPTION);
112    if (!argc)
113        usage_with_options(kvm_usage, kvm_options);
114
115    if (!perf_host)
116        perf_guest = 1;
117
118    if (!file_name) {
119        if (perf_host && !perf_guest)
120            sprintf(name_buffer, "perf.data.host");
121        else if (!perf_host && perf_guest)
122            sprintf(name_buffer, "perf.data.guest");
123        else
124            sprintf(name_buffer, "perf.data.kvm");
125        file_name = name_buffer;
126    }
127
128    if (!strncmp(argv[0], "rec", 3))
129        return __cmd_record(argc, argv);
130    else if (!strncmp(argv[0], "rep", 3))
131        return __cmd_report(argc, argv);
132    else if (!strncmp(argv[0], "diff", 4))
133        return cmd_diff(argc, argv, NULL);
134    else if (!strncmp(argv[0], "top", 3))
135        return cmd_top(argc, argv, NULL);
136    else if (!strncmp(argv[0], "buildid-list", 12))
137        return __cmd_buildid_list(argc, argv);
138    else
139        usage_with_options(kvm_usage, kvm_options);
140
141    return 0;
142}
143

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