| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* Display a menu with individual samples to browse with perf script */ |
| 3 | #include "hist.h" |
| 4 | #include "evsel.h" |
| 5 | #include "hists.h" |
| 6 | #include "sort.h" |
| 7 | #include "config.h" |
| 8 | #include "time-utils.h" |
| 9 | #include "../util.h" |
| 10 | #include "../../util/util.h" // perf_exe() |
| 11 | #include "../../perf.h" |
| 12 | #include <stdlib.h> |
| 13 | #include <string.h> |
| 14 | #include <linux/time64.h> |
| 15 | #include <linux/zalloc.h> |
| 16 | |
| 17 | static u64 context_len = 10 * NSEC_PER_MSEC; |
| 18 | |
| 19 | static int res_sample_config(const char *var, const char *value, void *data __maybe_unused) |
| 20 | { |
| 21 | if (!strcmp(var, "samples.context")) |
| 22 | return perf_config_u64(&context_len, var, value); |
| 23 | return 0; |
| 24 | } |
| 25 | |
| 26 | void res_sample_init(void) |
| 27 | { |
| 28 | perf_config(res_sample_config, NULL); |
| 29 | } |
| 30 | |
| 31 | int res_sample_browse(struct res_sample *res_samples, int num_res, |
| 32 | struct evsel *evsel, enum rstype rstype) |
| 33 | { |
| 34 | char **names; |
| 35 | int i, n; |
| 36 | int choice; |
| 37 | char *cmd; |
| 38 | char pbuf[256], tidbuf[32], cpubuf[32]; |
| 39 | const char *perf = perf_exe(pbuf, sizeof pbuf); |
| 40 | char trange[128], tsample[64]; |
| 41 | struct res_sample *r; |
| 42 | char extra_format[256]; |
| 43 | |
| 44 | names = calloc(num_res, sizeof(char *)); |
| 45 | if (!names) |
| 46 | return -1; |
| 47 | for (i = 0; i < num_res; i++) { |
| 48 | char tbuf[64]; |
| 49 | |
| 50 | timestamp__scnprintf_nsec(res_samples[i].time, tbuf, sizeof tbuf); |
| 51 | if (asprintf(&names[i], "%s: CPU %d tid %d", tbuf, |
| 52 | res_samples[i].cpu, res_samples[i].tid) < 0) { |
| 53 | while (--i >= 0) |
| 54 | zfree(&names[i]); |
| 55 | free(names); |
| 56 | return -1; |
| 57 | } |
| 58 | } |
| 59 | choice = ui__popup_menu(num_res, names); |
| 60 | for (i = 0; i < num_res; i++) |
| 61 | zfree(&names[i]); |
| 62 | free(names); |
| 63 | |
| 64 | if (choice < 0 || choice >= num_res) |
| 65 | return -1; |
| 66 | r = &res_samples[choice]; |
| 67 | |
| 68 | n = timestamp__scnprintf_nsec(r->time - context_len, trange, sizeof trange); |
| 69 | trange[n++] = ','; |
| 70 | timestamp__scnprintf_nsec(r->time + context_len, trange + n, sizeof trange - n); |
| 71 | |
| 72 | timestamp__scnprintf_nsec(r->time, tsample, sizeof tsample); |
| 73 | |
| 74 | attr_to_script(extra_format, &evsel->core.attr); |
| 75 | |
| 76 | if (asprintf(&cmd, "%s script %s%s --time %s %s%s %s%s --ns %s %s %s %s %s | less +/%s", |
| 77 | perf, |
| 78 | input_name ? "-i " : "", |
| 79 | input_name ? input_name : "", |
| 80 | trange, |
| 81 | r->cpu >= 0 ? "--cpu " : "", |
| 82 | r->cpu >= 0 ? (sprintf(cpubuf, "%d", r->cpu), cpubuf) : "", |
| 83 | r->tid ? "--tid " : "", |
| 84 | r->tid ? (sprintf(tidbuf, "%d", r->tid), tidbuf) : "", |
| 85 | extra_format, |
| 86 | rstype == A_ASM ? "-F +insn --xed" : |
| 87 | rstype == A_SOURCE ? "-F +srcline,+srccode" : "", |
| 88 | symbol_conf.inline_name ? "--inline" : "", |
| 89 | "--show-lost-events ", |
| 90 | r->tid ? "--show-switch-events --show-task-events " : "", |
| 91 | tsample) < 0) |
| 92 | return -1; |
| 93 | run_script(cmd); |
| 94 | free(cmd); |
| 95 | return 0; |
| 96 | } |