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