Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[~shefty/rdma-dev.git] / 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
22 static const char               *file_name;
23 static char                     name_buffer[256];
24
25 static const char * const kvm_usage[] = {
26         "perf kvm [<options>] {top|record|report|diff|buildid-list}",
27         NULL
28 };
29
30 static 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
51 static 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
69 static 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
87 static 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
105 int 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 }