perf probe: Show accessible local variables
[linux-2.6.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 bool                            perf_host = 1;
26 bool                            perf_guest;
27
28 static const char * const kvm_usage[] = {
29         "perf kvm [<options>] {top|record|report|diff|buildid-list}",
30         NULL
31 };
32
33 static 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
54 static 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
72 static 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
90 static 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
108 int 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 }