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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
#include <linux/compiler.h>
#include <linux/kernel.h>
#include "util.h"
#include "debug.h"
#include "builtin.h"
#include <subcmd/parse-options.h>
#include "mem-events.h"
#include "session.h"
#include "hist.h"
#include "tool.h"
#include "data.h"
struct perf_c2c {
struct perf_tool tool;
};
static struct perf_c2c c2c;
static const char * const c2c_usage[] = {
"perf c2c {record|report}",
NULL
};
static const char * const __usage_report[] = {
"perf c2c report",
NULL
};
static const char * const *report_c2c_usage = __usage_report;
static int perf_c2c__report(int argc, const char **argv)
{
struct perf_session *session;
struct perf_data_file file = {
.mode = PERF_DATA_MODE_READ,
};
const struct option c2c_options[] = {
OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
"file", "vmlinux pathname"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show counter open errors, etc)"),
OPT_STRING('i', "input", &input_name, "file",
"the input file to process"),
OPT_END()
};
int err = 0;
argc = parse_options(argc, argv, c2c_options, report_c2c_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
if (!argc)
usage_with_options(report_c2c_usage, c2c_options);
file.path = input_name;
session = perf_session__new(&file, 0, &c2c.tool);
if (session == NULL) {
pr_debug("No memory for session\n");
goto out;
}
if (symbol__init(&session->header.env) < 0)
goto out_session;
/* No pipe support at the moment. */
if (perf_data_file__is_pipe(session->file)) {
pr_debug("No pipe support at the moment.\n");
goto out_session;
}
out_session:
perf_session__delete(session);
out:
return err;
}
static int parse_record_events(const struct option *opt __maybe_unused,
const char *str, int unset __maybe_unused)
{
bool *event_set = (bool *) opt->value;
*event_set = true;
return perf_mem_events__parse(str);
}
static const char * const __usage_record[] = {
"perf c2c record [<options>] [<command>]",
"perf c2c record [<options>] -- <command> [<options>]",
NULL
};
static const char * const *record_mem_usage = __usage_record;
static int perf_c2c__record(int argc, const char **argv)
{
int rec_argc, i = 0, j;
const char **rec_argv;
int ret;
bool all_user = false, all_kernel = false;
bool event_set = false;
struct option options[] = {
OPT_CALLBACK('e', "event", &event_set, "event",
"event selector. Use 'perf mem record -e list' to list available events",
parse_record_events),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show counter open errors, etc)"),
OPT_BOOLEAN('u', "all-user", &all_user, "collect only user level data"),
OPT_BOOLEAN('k', "all-kernel", &all_kernel, "collect only kernel level data"),
OPT_UINTEGER('l', "ldlat", &perf_mem_events__loads_ldlat, "setup mem-loads latency"),
OPT_END()
};
if (perf_mem_events__init()) {
pr_err("failed: memory events not supported\n");
return -1;
}
argc = parse_options(argc, argv, options, record_mem_usage,
PARSE_OPT_KEEP_UNKNOWN);
rec_argc = argc + 10; /* max number of arguments */
rec_argv = calloc(rec_argc + 1, sizeof(char *));
if (!rec_argv)
return -1;
rec_argv[i++] = "record";
if (!event_set) {
perf_mem_events[PERF_MEM_EVENTS__LOAD].record = true;
perf_mem_events[PERF_MEM_EVENTS__STORE].record = true;
}
if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record)
rec_argv[i++] = "-W";
rec_argv[i++] = "-d";
rec_argv[i++] = "--sample-cpu";
for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
if (!perf_mem_events[j].record)
continue;
if (!perf_mem_events[j].supported) {
pr_err("failed: event '%s' not supported\n",
perf_mem_events[j].name);
return -1;
}
rec_argv[i++] = "-e";
rec_argv[i++] = perf_mem_events__name(j);
};
if (all_user)
rec_argv[i++] = "--all-user";
if (all_kernel)
rec_argv[i++] = "--all-kernel";
for (j = 0; j < argc; j++, i++)
rec_argv[i] = argv[j];
if (verbose > 0) {
pr_debug("calling: ");
j = 0;
while (rec_argv[j]) {
pr_debug("%s ", rec_argv[j]);
j++;
}
pr_debug("\n");
}
ret = cmd_record(i, rec_argv, NULL);
free(rec_argv);
return ret;
}
int cmd_c2c(int argc, const char **argv, const char *prefix __maybe_unused)
{
const struct option c2c_options[] = {
OPT_INCR('v', "verbose", &verbose, "be more verbose"),
OPT_END()
};
argc = parse_options(argc, argv, c2c_options, c2c_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
if (!argc)
usage_with_options(c2c_usage, c2c_options);
if (!strncmp(argv[0], "rec", 3)) {
return perf_c2c__record(argc, argv);
} else if (!strncmp(argv[0], "rep", 3)) {
return perf_c2c__report(argc, argv);
} else {
usage_with_options(c2c_usage, c2c_options);
}
return 0;
}
|
