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
|
// SPDX-License-Identifier: GPL-2.0
#include "../../util/sort.h"
#include "../../util/util.h"
#include "../../util/hist.h"
#include "../../util/debug.h"
#include "../../util/symbol.h"
#include "../browser.h"
#include "../libslang.h"
#include "config.h"
#define SCRIPT_NAMELEN 128
#define SCRIPT_MAX_NO 64
/*
* Usually the full path for a script is:
* /home/username/libexec/perf-core/scripts/python/xxx.py
* /home/username/libexec/perf-core/scripts/perl/xxx.pl
* So 256 should be long enough to contain the full path.
*/
#define SCRIPT_FULLPATH_LEN 256
struct script_config {
const char **names;
char **paths;
int index;
const char *perf;
char extra_format[256];
};
void attr_to_script(char *extra_format, struct perf_event_attr *attr)
{
extra_format[0] = 0;
if (attr->read_format & PERF_FORMAT_GROUP)
strcat(extra_format, " -F +metric");
if (attr->sample_type & PERF_SAMPLE_BRANCH_STACK)
strcat(extra_format, " -F +brstackinsn --xed");
if (attr->sample_type & PERF_SAMPLE_REGS_INTR)
strcat(extra_format, " -F +iregs");
if (attr->sample_type & PERF_SAMPLE_REGS_USER)
strcat(extra_format, " -F +uregs");
if (attr->sample_type & PERF_SAMPLE_PHYS_ADDR)
strcat(extra_format, " -F +phys_addr");
}
static int add_script_option(const char *name, const char *opt,
struct script_config *c)
{
c->names[c->index] = name;
if (asprintf(&c->paths[c->index],
"%s script %s -F +metric %s %s",
c->perf, opt, symbol_conf.inline_name ? " --inline" : "",
c->extra_format) < 0)
return -1;
c->index++;
return 0;
}
static int scripts_config(const char *var, const char *value, void *data)
{
struct script_config *c = data;
if (!strstarts(var, "scripts."))
return -1;
if (c->index >= SCRIPT_MAX_NO)
return -1;
c->names[c->index] = strdup(var + 7);
if (!c->names[c->index])
return -1;
if (asprintf(&c->paths[c->index], "%s %s", value,
c->extra_format) < 0)
return -1;
c->index++;
return 0;
}
/*
* When success, will copy the full path of the selected script
* into the buffer pointed by script_name, and return 0.
* Return -1 on failure.
*/
static int list_scripts(char *script_name, bool *custom,
struct perf_evsel *evsel)
{
char *buf, *paths[SCRIPT_MAX_NO], *names[SCRIPT_MAX_NO];
int i, num, choice;
int ret = 0;
int max_std, custom_perf;
char pbuf[256];
const char *perf = perf_exe(pbuf, sizeof pbuf);
struct script_config scriptc = {
.names = (const char **)names,
.paths = paths,
.perf = perf
};
script_name[0] = 0;
/* Preset the script name to SCRIPT_NAMELEN */
buf = malloc(SCRIPT_MAX_NO * (SCRIPT_NAMELEN + SCRIPT_FULLPATH_LEN));
if (!buf)
return -1;
if (evsel)
attr_to_script(scriptc.extra_format, &evsel->attr);
add_script_option("Show individual samples", "", &scriptc);
add_script_option("Show individual samples with assembler", "-F +insn --xed",
&scriptc);
add_script_option("Show individual samples with source", "-F +srcline,+srccode",
&scriptc);
perf_config(scripts_config, &scriptc);
custom_perf = scriptc.index;
add_script_option("Show samples with custom perf script arguments", "", &scriptc);
i = scriptc.index;
max_std = i;
for (; i < SCRIPT_MAX_NO; i++) {
names[i] = buf + (i - max_std) * (SCRIPT_NAMELEN + SCRIPT_FULLPATH_LEN);
paths[i] = names[i] + SCRIPT_NAMELEN;
}
num = find_scripts(names + max_std, paths + max_std, SCRIPT_MAX_NO - max_std,
SCRIPT_FULLPATH_LEN);
if (num < 0)
num = 0;
choice = ui__popup_menu(num + max_std, (char * const *)names);
if (choice < 0) {
ret = -1;
goto out;
}
if (choice == custom_perf) {
char script_args[50];
int key = ui_browser__input_window("perf script command",
"Enter perf script command line (without perf script prefix)",
script_args, "", 0);
if (key != K_ENTER)
return -1;
sprintf(script_name, "%s script %s", perf, script_args);
} else if (choice < num + max_std) {
strcpy(script_name, paths[choice]);
}
*custom = choice >= max_std;
out:
free(buf);
for (i = 0; i < max_std; i++)
free(paths[i]);
return ret;
}
void run_script(char *cmd)
{
pr_debug("Running %s\n", cmd);
SLang_reset_tty();
if (system(cmd) < 0)
pr_warning("Cannot run %s\n", cmd);
/*
* SLang doesn't seem to reset the whole terminal, so be more
* forceful to get back to the original state.
*/
printf("\033[c\033[H\033[J");
fflush(stdout);
SLang_init_tty(0, 0, 0);
SLsmg_refresh();
}
int script_browse(const char *script_opt, struct perf_evsel *evsel)
{
char *cmd, script_name[SCRIPT_FULLPATH_LEN];
bool custom = false;
memset(script_name, 0, SCRIPT_FULLPATH_LEN);
if (list_scripts(script_name, &custom, evsel))
return -1;
if (asprintf(&cmd, "%s%s %s %s%s 2>&1 | less",
custom ? "perf script -s " : "",
script_name,
script_opt ? script_opt : "",
input_name ? "-i " : "",
input_name ? input_name : "") < 0)
return -1;
run_script(cmd);
free(cmd);
return 0;
}
|
