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
|
// SPDX-License-Identifier: GPL-2.0
/* Display a menu with individual samples to browse with perf script */
#include "hist.h"
#include "evsel.h"
#include "hists.h"
#include "sort.h"
#include "config.h"
#include "time-utils.h"
#include "../util.h"
#include "../../util/util.h"
#include "../../perf.h"
#include <linux/time64.h>
#include <linux/zalloc.h>
static u64 context_len = 10 * NSEC_PER_MSEC;
static int res_sample_config(const char *var, const char *value, void *data __maybe_unused)
{
if (!strcmp(var, "samples.context"))
return perf_config_u64(&context_len, var, value);
return 0;
}
void res_sample_init(void)
{
perf_config(res_sample_config, NULL);
}
int res_sample_browse(struct res_sample *res_samples, int num_res,
struct evsel *evsel, enum rstype rstype)
{
char **names;
int i, n;
int choice;
char *cmd;
char pbuf[256], tidbuf[32], cpubuf[32];
const char *perf = perf_exe(pbuf, sizeof pbuf);
char trange[128], tsample[64];
struct res_sample *r;
char extra_format[256];
names = calloc(num_res, sizeof(char *));
if (!names)
return -1;
for (i = 0; i < num_res; i++) {
char tbuf[64];
timestamp__scnprintf_nsec(res_samples[i].time, tbuf, sizeof tbuf);
if (asprintf(&names[i], "%s: CPU %d tid %d", tbuf,
res_samples[i].cpu, res_samples[i].tid) < 0) {
while (--i >= 0)
zfree(&names[i]);
free(names);
return -1;
}
}
choice = ui__popup_menu(num_res, names);
for (i = 0; i < num_res; i++)
zfree(&names[i]);
free(names);
if (choice < 0 || choice >= num_res)
return -1;
r = &res_samples[choice];
n = timestamp__scnprintf_nsec(r->time - context_len, trange, sizeof trange);
trange[n++] = ',';
timestamp__scnprintf_nsec(r->time + context_len, trange + n, sizeof trange - n);
timestamp__scnprintf_nsec(r->time, tsample, sizeof tsample);
attr_to_script(extra_format, &evsel->core.attr);
if (asprintf(&cmd, "%s script %s%s --time %s %s%s %s%s --ns %s %s %s %s %s | less +/%s",
perf,
input_name ? "-i " : "",
input_name ? input_name : "",
trange,
r->cpu >= 0 ? "--cpu " : "",
r->cpu >= 0 ? (sprintf(cpubuf, "%d", r->cpu), cpubuf) : "",
r->tid ? "--tid " : "",
r->tid ? (sprintf(tidbuf, "%d", r->tid), tidbuf) : "",
extra_format,
rstype == A_ASM ? "-F +insn --xed" :
rstype == A_SOURCE ? "-F +srcline,+srccode" : "",
symbol_conf.inline_name ? "--inline" : "",
"--show-lost-events ",
r->tid ? "--show-switch-events --show-task-events " : "",
tsample) < 0)
return -1;
run_script(cmd);
free(cmd);
return 0;
}
|
