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
25bool perf_host = 1;
26bool perf_guest;
27
28static const char * const kvm_usage[] = {
29    "perf kvm [<options>] {top|record|report|diff|buildid-list}",
30    NULL
31};
32
33static const struct option kvm_options[] = {
34    OPT_STRING('i', "input", &file_name, "file",
35           "Input file name"),
36    OPT_STRING('o', "output", &file_name, "file",
37           "Output file name"),
38    OPT_BOOLEAN(0, "guest", &perf_guest,
39            "Collect guest os data"),
40    OPT_BOOLEAN(0, "host", &perf_host,
41            "Collect guest os data"),
42    OPT_STRING(0, "guestmount", &symbol_conf.guestmount, "directory",
43           "guest mount directory under which every guest os"
44           " instance has a subdir"),
45    OPT_STRING(0, "guestvmlinux", &symbol_conf.default_guest_vmlinux_name,
46           "file", "file saving guest os vmlinux"),
47    OPT_STRING(0, "guestkallsyms", &symbol_conf.default_guest_kallsyms,
48           "file", "file saving guest os /proc/kallsyms"),
49    OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules,
50           "file", "file saving guest os /proc/modules"),
51    OPT_END()
52};
53
54static int __cmd_record(int argc, const char **argv)
55{
56    int rec_argc, i = 0, j;
57    const char **rec_argv;
58
59    rec_argc = argc + 2;
60    rec_argv = calloc(rec_argc + 1, sizeof(char *));
61    rec_argv[i++] = strdup("record");
62    rec_argv[i++] = strdup("-o");
63    rec_argv[i++] = strdup(file_name);
64    for (j = 1; j < argc; j++, i++)
65        rec_argv[i] = argv[j];
66
67    BUG_ON(i != rec_argc);
68
69    return cmd_record(i, rec_argv, NULL);
70}
71
72static int __cmd_report(int argc, const char **argv)
73{
74    int rec_argc, i = 0, j;
75    const char **rec_argv;
76
77    rec_argc = argc + 2;
78    rec_argv = calloc(rec_argc + 1, sizeof(char *));
79    rec_argv[i++] = strdup("report");
80    rec_argv[i++] = strdup("-i");
81    rec_argv[i++] = strdup(file_name);
82    for (j = 1; j < argc; j++, i++)
83        rec_argv[i] = argv[j];
84
85    BUG_ON(i != rec_argc);
86
87    return cmd_report(i, rec_argv, NULL);
88}
89
90static int __cmd_buildid_list(int argc, const char **argv)
91{
92    int rec_argc, i = 0, j;
93    const char **rec_argv;
94
95    rec_argc = argc + 2;
96    rec_argv = calloc(rec_argc + 1, sizeof(char *));
97    rec_argv[i++] = strdup("buildid-list");
98    rec_argv[i++] = strdup("-i");
99    rec_argv[i++] = strdup(file_name);
100    for (j = 1; j < argc; j++, i++)
101        rec_argv[i] = argv[j];
102
103    BUG_ON(i != rec_argc);
104
105    return cmd_buildid_list(i, rec_argv, NULL);
106}
107
108int cmd_kvm(int argc, const char **argv, const char *prefix __used)
109{
110    perf_host = perf_guest = 0;
111
112    argc = parse_options(argc, argv, kvm_options, kvm_usage,
113            PARSE_OPT_STOP_AT_NON_OPTION);
114    if (!argc)
115        usage_with_options(kvm_usage, kvm_options);
116
117    if (!perf_host)
118        perf_guest = 1;
119
120    if (!file_name) {
121        if (perf_host && !perf_guest)
122            sprintf(name_buffer, "perf.data.host");
123        else if (!perf_host && perf_guest)
124            sprintf(name_buffer, "perf.data.guest");
125        else
126            sprintf(name_buffer, "perf.data.kvm");
127        file_name = name_buffer;
128    }
129
130    if (!strncmp(argv[0], "rec", 3))
131        return __cmd_record(argc, argv);
132    else if (!strncmp(argv[0], "rep", 3))
133        return __cmd_report(argc, argv);
134    else if (!strncmp(argv[0], "diff", 4))
135        return cmd_diff(argc, argv, NULL);
136    else if (!strncmp(argv[0], "top", 3))
137        return cmd_top(argc, argv, NULL);
138    else if (!strncmp(argv[0], "buildid-list", 12))
139        return __cmd_buildid_list(argc, argv);
140    else
141        usage_with_options(kvm_usage, kvm_options);
142
143    return 0;
144}
145

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