1// SPDX-License-Identifier: GPL-2.0
2#include "util/iostat.h"
3#include "util/debug.h"
4
5enum iostat_mode_t iostat_mode = IOSTAT_NONE;
6
7__weak int iostat_prepare(struct evlist *evlist __maybe_unused,
8 struct perf_stat_config *config __maybe_unused)
9{
10 return -1;
11}
12
13__weak int iostat_parse(const struct option *opt __maybe_unused,
14 const char *str __maybe_unused,
15 int unset __maybe_unused)
16{
17 pr_err("iostat mode is not supported on current platform\n");
18 return -1;
19}
20
21__weak void iostat_list(struct evlist *evlist __maybe_unused,
22 struct perf_stat_config *config __maybe_unused)
23{
24}
25
26__weak void iostat_release(struct evlist *evlist __maybe_unused)
27{
28}
29
30__weak void iostat_print_header_prefix(struct perf_stat_config *config __maybe_unused)
31{
32}
33
34__weak void iostat_print_metric(struct perf_stat_config *config __maybe_unused,
35 struct evsel *evsel __maybe_unused,
36 struct perf_stat_output_ctx *out __maybe_unused)
37{
38}
39
40__weak void iostat_prefix(struct evlist *evlist __maybe_unused,
41 struct perf_stat_config *config __maybe_unused,
42 char *prefix __maybe_unused,
43 struct timespec *ts __maybe_unused)
44{
45}
46
47__weak void iostat_print_counters(struct evlist *evlist __maybe_unused,
48 struct perf_stat_config *config __maybe_unused,
49 struct timespec *ts __maybe_unused,
50 char *prefix __maybe_unused,
51 iostat_print_counter_t print_cnt_cb __maybe_unused,
52 void *arg __maybe_unused)
53{
54}
55

source code of linux/tools/perf/util/iostat.c