15a8e0ff9SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2aaf045f7SSteven Rostedt /* 3aaf045f7SSteven Rostedt * Copyright (C) 2009, Steven Rostedt <srostedt@redhat.com> 4aaf045f7SSteven Rostedt */ 5aaf045f7SSteven Rostedt #include <stdio.h> 6aaf045f7SSteven Rostedt #include <stdlib.h> 7aaf045f7SSteven Rostedt #include <string.h> 8aaf045f7SSteven Rostedt #include <errno.h> 9aaf045f7SSteven Rostedt 101ef2ed10SFrederic Weisbecker #include "../perf.h" 11d2a74d53SArnaldo Carvalho de Melo #include "debug.h" 12ea4010d1SSteven Rostedt #include "trace-event.h" 13ea4010d1SSteven Rostedt 143d689ed6SArnaldo Carvalho de Melo #include "sane_ctype.h" 153d689ed6SArnaldo Carvalho de Melo 16aaf045f7SSteven Rostedt static int get_common_field(struct scripting_context *context, 17aaf045f7SSteven Rostedt int *offset, int *size, const char *type) 187397d80dSTom Zanussi { 19096177a8STzvetomir Stoyanov (VMware) struct tep_handle *pevent = context->pevent; 2097fbf3f0STzvetomir Stoyanov struct tep_event *event; 212c92f982STzvetomir Stoyanov (VMware) struct tep_format_field *field; 22aaf045f7SSteven Rostedt 23aaf045f7SSteven Rostedt if (!*size) { 24bb3dd7e7STzvetomir Stoyanov 25bb3dd7e7STzvetomir Stoyanov event = tep_get_first_event(pevent); 26bb3dd7e7STzvetomir Stoyanov if (!event) 27aaf045f7SSteven Rostedt return 0; 28aaf045f7SSteven Rostedt 29af85cd19STzvetomir Stoyanov (VMware) field = tep_find_common_field(event, type); 30aaf045f7SSteven Rostedt if (!field) 31aaf045f7SSteven Rostedt return 0; 32aaf045f7SSteven Rostedt *offset = field->offset; 33aaf045f7SSteven Rostedt *size = field->size; 34aaf045f7SSteven Rostedt } 35aaf045f7SSteven Rostedt 3659c1baeeSTzvetomir Stoyanov (VMware) return tep_read_number(pevent, context->event_data + *offset, *size); 377397d80dSTom Zanussi } 387397d80dSTom Zanussi 397397d80dSTom Zanussi int common_lock_depth(struct scripting_context *context) 407397d80dSTom Zanussi { 41aaf045f7SSteven Rostedt static int offset; 42aaf045f7SSteven Rostedt static int size; 43aaf045f7SSteven Rostedt int ret; 44aaf045f7SSteven Rostedt 45aaf045f7SSteven Rostedt ret = get_common_field(context, &size, &offset, 46aaf045f7SSteven Rostedt "common_lock_depth"); 47aaf045f7SSteven Rostedt if (ret < 0) 48aaf045f7SSteven Rostedt return -1; 49aaf045f7SSteven Rostedt 50aaf045f7SSteven Rostedt return ret; 51aaf045f7SSteven Rostedt } 52aaf045f7SSteven Rostedt 53aaf045f7SSteven Rostedt int common_flags(struct scripting_context *context) 54aaf045f7SSteven Rostedt { 55aaf045f7SSteven Rostedt static int offset; 56aaf045f7SSteven Rostedt static int size; 57aaf045f7SSteven Rostedt int ret; 58aaf045f7SSteven Rostedt 59aaf045f7SSteven Rostedt ret = get_common_field(context, &size, &offset, 60aaf045f7SSteven Rostedt "common_flags"); 61aaf045f7SSteven Rostedt if (ret < 0) 62aaf045f7SSteven Rostedt return -1; 63aaf045f7SSteven Rostedt 64aaf045f7SSteven Rostedt return ret; 65aaf045f7SSteven Rostedt } 66aaf045f7SSteven Rostedt 67aaf045f7SSteven Rostedt int common_pc(struct scripting_context *context) 68aaf045f7SSteven Rostedt { 69aaf045f7SSteven Rostedt static int offset; 70aaf045f7SSteven Rostedt static int size; 71aaf045f7SSteven Rostedt int ret; 72aaf045f7SSteven Rostedt 73aaf045f7SSteven Rostedt ret = get_common_field(context, &size, &offset, 74aaf045f7SSteven Rostedt "common_preempt_count"); 75aaf045f7SSteven Rostedt if (ret < 0) 76aaf045f7SSteven Rostedt return -1; 77aaf045f7SSteven Rostedt 78aaf045f7SSteven Rostedt return ret; 79aaf045f7SSteven Rostedt } 80aaf045f7SSteven Rostedt 81aaf045f7SSteven Rostedt unsigned long long 8297fbf3f0STzvetomir Stoyanov raw_field_value(struct tep_event *event, const char *name, void *data) 83aaf045f7SSteven Rostedt { 842c92f982STzvetomir Stoyanov (VMware) struct tep_format_field *field; 85aaf045f7SSteven Rostedt unsigned long long val; 86aaf045f7SSteven Rostedt 87af85cd19STzvetomir Stoyanov (VMware) field = tep_find_any_field(event, name); 88aaf045f7SSteven Rostedt if (!field) 89aaf045f7SSteven Rostedt return 0ULL; 90aaf045f7SSteven Rostedt 9159c1baeeSTzvetomir Stoyanov (VMware) tep_read_number_field(field, data, &val); 92aaf045f7SSteven Rostedt 93aaf045f7SSteven Rostedt return val; 94aaf045f7SSteven Rostedt } 95aaf045f7SSteven Rostedt 9697fbf3f0STzvetomir Stoyanov unsigned long long read_size(struct tep_event *event, void *ptr, int size) 97aaf045f7SSteven Rostedt { 9869769ce1STzvetomir Stoyanov return tep_read_number(event->tep, ptr, size); 99aaf045f7SSteven Rostedt } 100aaf045f7SSteven Rostedt 10197fbf3f0STzvetomir Stoyanov void event_format__fprintf(struct tep_event *event, 102aa1aac17SArnaldo Carvalho de Melo int cpu, void *data, int size, FILE *fp) 103aaf045f7SSteven Rostedt { 104cbc49b25STzvetomir Stoyanov (VMware) struct tep_record record; 105aaf045f7SSteven Rostedt struct trace_seq s; 106aaf045f7SSteven Rostedt 107aaf045f7SSteven Rostedt memset(&record, 0, sizeof(record)); 108aaf045f7SSteven Rostedt record.cpu = cpu; 109aaf045f7SSteven Rostedt record.size = size; 110aaf045f7SSteven Rostedt record.data = data; 111aaf045f7SSteven Rostedt 112aaf045f7SSteven Rostedt trace_seq_init(&s); 1134d5c58b1STzvetomir Stoyanov (VMware) tep_event_info(&s, event, &record); 114aa1aac17SArnaldo Carvalho de Melo trace_seq_do_fprintf(&s, fp); 115b58f608eSJiri Olsa trace_seq_destroy(&s); 116aaf045f7SSteven Rostedt } 117aaf045f7SSteven Rostedt 11897fbf3f0STzvetomir Stoyanov void event_format__print(struct tep_event *event, 119aa1aac17SArnaldo Carvalho de Melo int cpu, void *data, int size) 120aa1aac17SArnaldo Carvalho de Melo { 121aa1aac17SArnaldo Carvalho de Melo return event_format__fprintf(event, cpu, data, size, stdout); 122aa1aac17SArnaldo Carvalho de Melo } 123aa1aac17SArnaldo Carvalho de Melo 124096177a8STzvetomir Stoyanov (VMware) void parse_ftrace_printk(struct tep_handle *pevent, 1251d037ca1SIrina Tirdea char *file, unsigned int size __maybe_unused) 126aaf045f7SSteven Rostedt { 127aaf045f7SSteven Rostedt unsigned long long addr; 128aaf045f7SSteven Rostedt char *printk; 129aaf045f7SSteven Rostedt char *line; 130aaf045f7SSteven Rostedt char *next = NULL; 131aaf045f7SSteven Rostedt char *addr_str; 1325bcaaca3SMartin Liška char *fmt = NULL; 133aaf045f7SSteven Rostedt 134aaf045f7SSteven Rostedt line = strtok_r(file, "\n", &next); 135aaf045f7SSteven Rostedt while (line) { 136aaf045f7SSteven Rostedt addr_str = strtok_r(line, ":", &fmt); 137aaf045f7SSteven Rostedt if (!addr_str) { 138d2a74d53SArnaldo Carvalho de Melo pr_warning("printk format with empty entry"); 139aaf045f7SSteven Rostedt break; 140aaf045f7SSteven Rostedt } 141aaf045f7SSteven Rostedt addr = strtoull(addr_str, NULL, 16); 142aaf045f7SSteven Rostedt /* fmt still has a space, skip it */ 143aaf045f7SSteven Rostedt printk = strdup(fmt+1); 144aaf045f7SSteven Rostedt line = strtok_r(NULL, "\n", &next); 14513a41890STzvetomir Stoyanov (VMware) tep_register_print_string(pevent, printk, addr); 1469c8a182eSSanskriti Sharma free(printk); 147aaf045f7SSteven Rostedt } 148aaf045f7SSteven Rostedt } 149aaf045f7SSteven Rostedt 150096177a8STzvetomir Stoyanov (VMware) void parse_saved_cmdline(struct tep_handle *pevent, 151cd4ceb63SNamhyung Kim char *file, unsigned int size __maybe_unused) 152cd4ceb63SNamhyung Kim { 153c9f23d2bSChris Phlipot char comm[17]; /* Max comm length in the kernel is 16. */ 154cd4ceb63SNamhyung Kim char *line; 155cd4ceb63SNamhyung Kim char *next = NULL; 156cd4ceb63SNamhyung Kim int pid; 157cd4ceb63SNamhyung Kim 158cd4ceb63SNamhyung Kim line = strtok_r(file, "\n", &next); 159cd4ceb63SNamhyung Kim while (line) { 160c9f23d2bSChris Phlipot if (sscanf(line, "%d %16s", &pid, comm) == 2) 16113a41890STzvetomir Stoyanov (VMware) tep_register_comm(pevent, comm, pid); 162cd4ceb63SNamhyung Kim line = strtok_r(NULL, "\n", &next); 163cd4ceb63SNamhyung Kim } 164cd4ceb63SNamhyung Kim } 165cd4ceb63SNamhyung Kim 166096177a8STzvetomir Stoyanov (VMware) int parse_ftrace_file(struct tep_handle *pevent, char *buf, unsigned long size) 167aaf045f7SSteven Rostedt { 168c60167c1STzvetomir Stoyanov (VMware) return tep_parse_event(pevent, buf, size, "ftrace"); 169aaf045f7SSteven Rostedt } 170aaf045f7SSteven Rostedt 171096177a8STzvetomir Stoyanov (VMware) int parse_event_file(struct tep_handle *pevent, 172da378962SArnaldo Carvalho de Melo char *buf, unsigned long size, char *sys) 173aaf045f7SSteven Rostedt { 174c60167c1STzvetomir Stoyanov (VMware) return tep_parse_event(pevent, buf, size, sys); 175aaf045f7SSteven Rostedt } 176aaf045f7SSteven Rostedt 17797fbf3f0STzvetomir Stoyanov struct tep_event *trace_find_next_event(struct tep_handle *pevent, 17897fbf3f0STzvetomir Stoyanov struct tep_event *event) 179aaf045f7SSteven Rostedt { 180aaf045f7SSteven Rostedt static int idx; 181bb3dd7e7STzvetomir Stoyanov int events_count; 18297fbf3f0STzvetomir Stoyanov struct tep_event *all_events; 183aaf045f7SSteven Rostedt 184bb3dd7e7STzvetomir Stoyanov all_events = tep_get_first_event(pevent); 185bb3dd7e7STzvetomir Stoyanov events_count = tep_get_events_count(pevent); 186bb3dd7e7STzvetomir Stoyanov if (!pevent || !all_events || events_count < 1) 187aaf045f7SSteven Rostedt return NULL; 188aaf045f7SSteven Rostedt 189aaf045f7SSteven Rostedt if (!event) { 190aaf045f7SSteven Rostedt idx = 0; 191bb3dd7e7STzvetomir Stoyanov return all_events; 192aaf045f7SSteven Rostedt } 193aaf045f7SSteven Rostedt 194bb3dd7e7STzvetomir Stoyanov if (idx < events_count && event == (all_events + idx)) { 195aaf045f7SSteven Rostedt idx++; 196bb3dd7e7STzvetomir Stoyanov if (idx == events_count) 197aaf045f7SSteven Rostedt return NULL; 198bb3dd7e7STzvetomir Stoyanov return (all_events + idx); 199aaf045f7SSteven Rostedt } 200aaf045f7SSteven Rostedt 201bb3dd7e7STzvetomir Stoyanov for (idx = 1; idx < events_count; idx++) { 202bb3dd7e7STzvetomir Stoyanov if (event == (all_events + (idx - 1))) 203bb3dd7e7STzvetomir Stoyanov return (all_events + idx); 204aaf045f7SSteven Rostedt } 205aaf045f7SSteven Rostedt return NULL; 206aaf045f7SSteven Rostedt } 207aaf045f7SSteven Rostedt 208aaf045f7SSteven Rostedt struct flag { 209aaf045f7SSteven Rostedt const char *name; 210aaf045f7SSteven Rostedt unsigned long long value; 211aaf045f7SSteven Rostedt }; 212aaf045f7SSteven Rostedt 213aaf045f7SSteven Rostedt static const struct flag flags[] = { 214aaf045f7SSteven Rostedt { "HI_SOFTIRQ", 0 }, 215aaf045f7SSteven Rostedt { "TIMER_SOFTIRQ", 1 }, 216aaf045f7SSteven Rostedt { "NET_TX_SOFTIRQ", 2 }, 217aaf045f7SSteven Rostedt { "NET_RX_SOFTIRQ", 3 }, 218aaf045f7SSteven Rostedt { "BLOCK_SOFTIRQ", 4 }, 219511cbce2SChristoph Hellwig { "IRQ_POLL_SOFTIRQ", 5 }, 220aaf045f7SSteven Rostedt { "TASKLET_SOFTIRQ", 6 }, 221aaf045f7SSteven Rostedt { "SCHED_SOFTIRQ", 7 }, 222aaf045f7SSteven Rostedt { "HRTIMER_SOFTIRQ", 8 }, 223aaf045f7SSteven Rostedt { "RCU_SOFTIRQ", 9 }, 224aaf045f7SSteven Rostedt 225aaf045f7SSteven Rostedt { "HRTIMER_NORESTART", 0 }, 226aaf045f7SSteven Rostedt { "HRTIMER_RESTART", 1 }, 227aaf045f7SSteven Rostedt }; 228aaf045f7SSteven Rostedt 229aaf045f7SSteven Rostedt unsigned long long eval_flag(const char *flag) 230aaf045f7SSteven Rostedt { 231aaf045f7SSteven Rostedt int i; 232aaf045f7SSteven Rostedt 233aaf045f7SSteven Rostedt /* 234aaf045f7SSteven Rostedt * Some flags in the format files do not get converted. 235aaf045f7SSteven Rostedt * If the flag is not numeric, see if it is something that 236aaf045f7SSteven Rostedt * we already know about. 237aaf045f7SSteven Rostedt */ 238aaf045f7SSteven Rostedt if (isdigit(flag[0])) 239aaf045f7SSteven Rostedt return strtoull(flag, NULL, 0); 240aaf045f7SSteven Rostedt 241aaf045f7SSteven Rostedt for (i = 0; i < (int)(sizeof(flags)/sizeof(flags[0])); i++) 242aaf045f7SSteven Rostedt if (strcmp(flags[i].name, flag) == 0) 243aaf045f7SSteven Rostedt return flags[i].value; 244aaf045f7SSteven Rostedt 245aaf045f7SSteven Rostedt return 0; 2467397d80dSTom Zanussi } 247