1aaf045f7SSteven Rostedt /* 2aaf045f7SSteven Rostedt * Copyright (C) 2009, Steven Rostedt <srostedt@redhat.com> 3aaf045f7SSteven Rostedt * 4aaf045f7SSteven Rostedt * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 5aaf045f7SSteven Rostedt * 6aaf045f7SSteven Rostedt * This program is free software; you can redistribute it and/or modify 7aaf045f7SSteven Rostedt * it under the terms of the GNU General Public License as published by 8aaf045f7SSteven Rostedt * the Free Software Foundation; version 2 of the License (not later!) 9aaf045f7SSteven Rostedt * 10aaf045f7SSteven Rostedt * This program is distributed in the hope that it will be useful, 11aaf045f7SSteven Rostedt * but WITHOUT ANY WARRANTY; without even the implied warranty of 12aaf045f7SSteven Rostedt * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13aaf045f7SSteven Rostedt * GNU General Public License for more details. 14aaf045f7SSteven Rostedt * 15aaf045f7SSteven Rostedt * You should have received a copy of the GNU General Public License 16aaf045f7SSteven Rostedt * along with this program; if not, write to the Free Software 17aaf045f7SSteven Rostedt * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18aaf045f7SSteven Rostedt * 19aaf045f7SSteven Rostedt * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 20aaf045f7SSteven Rostedt */ 21aaf045f7SSteven Rostedt #include <stdio.h> 22aaf045f7SSteven Rostedt #include <stdlib.h> 23aaf045f7SSteven Rostedt #include <string.h> 24aaf045f7SSteven Rostedt #include <ctype.h> 25aaf045f7SSteven Rostedt #include <errno.h> 26aaf045f7SSteven Rostedt 271ef2ed10SFrederic Weisbecker #include "../perf.h" 28ea4010d1SSteven Rostedt #include "util.h" 29ea4010d1SSteven Rostedt #include "trace-event.h" 30ea4010d1SSteven Rostedt 31aaf045f7SSteven Rostedt static int get_common_field(struct scripting_context *context, 32aaf045f7SSteven Rostedt int *offset, int *size, const char *type) 337397d80dSTom Zanussi { 34da378962SArnaldo Carvalho de Melo struct pevent *pevent = context->pevent; 35aaf045f7SSteven Rostedt struct event_format *event; 36aaf045f7SSteven Rostedt struct format_field *field; 37aaf045f7SSteven Rostedt 38aaf045f7SSteven Rostedt if (!*size) { 39aaf045f7SSteven Rostedt if (!pevent->events) 40aaf045f7SSteven Rostedt return 0; 41aaf045f7SSteven Rostedt 42aaf045f7SSteven Rostedt event = pevent->events[0]; 43aaf045f7SSteven Rostedt field = pevent_find_common_field(event, type); 44aaf045f7SSteven Rostedt if (!field) 45aaf045f7SSteven Rostedt return 0; 46aaf045f7SSteven Rostedt *offset = field->offset; 47aaf045f7SSteven Rostedt *size = field->size; 48aaf045f7SSteven Rostedt } 49aaf045f7SSteven Rostedt 50aaf045f7SSteven Rostedt return pevent_read_number(pevent, context->event_data + *offset, *size); 517397d80dSTom Zanussi } 527397d80dSTom Zanussi 537397d80dSTom Zanussi int common_lock_depth(struct scripting_context *context) 547397d80dSTom Zanussi { 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_lock_depth"); 61aaf045f7SSteven Rostedt if (ret < 0) 62aaf045f7SSteven Rostedt return -1; 63aaf045f7SSteven Rostedt 64aaf045f7SSteven Rostedt return ret; 65aaf045f7SSteven Rostedt } 66aaf045f7SSteven Rostedt 67aaf045f7SSteven Rostedt int common_flags(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_flags"); 75aaf045f7SSteven Rostedt if (ret < 0) 76aaf045f7SSteven Rostedt return -1; 77aaf045f7SSteven Rostedt 78aaf045f7SSteven Rostedt return ret; 79aaf045f7SSteven Rostedt } 80aaf045f7SSteven Rostedt 81aaf045f7SSteven Rostedt int common_pc(struct scripting_context *context) 82aaf045f7SSteven Rostedt { 83aaf045f7SSteven Rostedt static int offset; 84aaf045f7SSteven Rostedt static int size; 85aaf045f7SSteven Rostedt int ret; 86aaf045f7SSteven Rostedt 87aaf045f7SSteven Rostedt ret = get_common_field(context, &size, &offset, 88aaf045f7SSteven Rostedt "common_preempt_count"); 89aaf045f7SSteven Rostedt if (ret < 0) 90aaf045f7SSteven Rostedt return -1; 91aaf045f7SSteven Rostedt 92aaf045f7SSteven Rostedt return ret; 93aaf045f7SSteven Rostedt } 94aaf045f7SSteven Rostedt 95aaf045f7SSteven Rostedt unsigned long long 96aaf045f7SSteven Rostedt raw_field_value(struct event_format *event, const char *name, void *data) 97aaf045f7SSteven Rostedt { 98aaf045f7SSteven Rostedt struct format_field *field; 99aaf045f7SSteven Rostedt unsigned long long val; 100aaf045f7SSteven Rostedt 101aaf045f7SSteven Rostedt field = pevent_find_any_field(event, name); 102aaf045f7SSteven Rostedt if (!field) 103aaf045f7SSteven Rostedt return 0ULL; 104aaf045f7SSteven Rostedt 105aaf045f7SSteven Rostedt pevent_read_number_field(field, data, &val); 106aaf045f7SSteven Rostedt 107aaf045f7SSteven Rostedt return val; 108aaf045f7SSteven Rostedt } 109aaf045f7SSteven Rostedt 11097822433SArnaldo Carvalho de Melo unsigned long long read_size(struct event_format *event, void *ptr, int size) 111aaf045f7SSteven Rostedt { 11297822433SArnaldo Carvalho de Melo return pevent_read_number(event->pevent, ptr, size); 113aaf045f7SSteven Rostedt } 114aaf045f7SSteven Rostedt 115fcf65bf1SArnaldo Carvalho de Melo void event_format__print(struct event_format *event, 116fcf65bf1SArnaldo Carvalho de Melo int cpu, void *data, int size) 117aaf045f7SSteven Rostedt { 1181c698186SSteven Rostedt struct pevent_record record; 119aaf045f7SSteven Rostedt struct trace_seq s; 120aaf045f7SSteven Rostedt 121aaf045f7SSteven Rostedt memset(&record, 0, sizeof(record)); 122aaf045f7SSteven Rostedt record.cpu = cpu; 123aaf045f7SSteven Rostedt record.size = size; 124aaf045f7SSteven Rostedt record.data = data; 125aaf045f7SSteven Rostedt 126aaf045f7SSteven Rostedt trace_seq_init(&s); 12776a8349dSDavid Ahern pevent_event_info(&s, event, &record); 128aaf045f7SSteven Rostedt trace_seq_do_printf(&s); 129b58f608eSJiri Olsa trace_seq_destroy(&s); 130aaf045f7SSteven Rostedt } 131aaf045f7SSteven Rostedt 132da378962SArnaldo Carvalho de Melo void parse_proc_kallsyms(struct pevent *pevent, 1331d037ca1SIrina Tirdea char *file, unsigned int size __maybe_unused) 134aaf045f7SSteven Rostedt { 135aaf045f7SSteven Rostedt unsigned long long addr; 136aaf045f7SSteven Rostedt char *func; 137aaf045f7SSteven Rostedt char *line; 138aaf045f7SSteven Rostedt char *next = NULL; 139aaf045f7SSteven Rostedt char *addr_str; 140aaf045f7SSteven Rostedt char *mod; 1410f965429SIngo Molnar char *fmt = NULL; 142aaf045f7SSteven Rostedt 143aaf045f7SSteven Rostedt line = strtok_r(file, "\n", &next); 144aaf045f7SSteven Rostedt while (line) { 145aaf045f7SSteven Rostedt mod = NULL; 146bcbd0040SIrina Tirdea addr_str = strtok_r(line, " ", &fmt); 147aaf045f7SSteven Rostedt addr = strtoull(addr_str, NULL, 16); 148bcbd0040SIrina Tirdea /* skip character */ 149bcbd0040SIrina Tirdea strtok_r(NULL, " ", &fmt); 150bcbd0040SIrina Tirdea func = strtok_r(NULL, "\t", &fmt); 151bcbd0040SIrina Tirdea mod = strtok_r(NULL, "]", &fmt); 152bcbd0040SIrina Tirdea /* truncate the extra '[' */ 153aaf045f7SSteven Rostedt if (mod) 154bcbd0040SIrina Tirdea mod = mod + 1; 155aaf045f7SSteven Rostedt 156aaf045f7SSteven Rostedt pevent_register_function(pevent, func, addr, mod); 157aaf045f7SSteven Rostedt 158aaf045f7SSteven Rostedt line = strtok_r(NULL, "\n", &next); 159aaf045f7SSteven Rostedt } 160aaf045f7SSteven Rostedt } 161aaf045f7SSteven Rostedt 162da378962SArnaldo Carvalho de Melo void parse_ftrace_printk(struct pevent *pevent, 1631d037ca1SIrina Tirdea char *file, unsigned int size __maybe_unused) 164aaf045f7SSteven Rostedt { 165aaf045f7SSteven Rostedt unsigned long long addr; 166aaf045f7SSteven Rostedt char *printk; 167aaf045f7SSteven Rostedt char *line; 168aaf045f7SSteven Rostedt char *next = NULL; 169aaf045f7SSteven Rostedt char *addr_str; 170aaf045f7SSteven Rostedt char *fmt; 171aaf045f7SSteven Rostedt 172aaf045f7SSteven Rostedt line = strtok_r(file, "\n", &next); 173aaf045f7SSteven Rostedt while (line) { 174aaf045f7SSteven Rostedt addr_str = strtok_r(line, ":", &fmt); 175aaf045f7SSteven Rostedt if (!addr_str) { 176aaf045f7SSteven Rostedt warning("printk format with empty entry"); 177aaf045f7SSteven Rostedt break; 178aaf045f7SSteven Rostedt } 179aaf045f7SSteven Rostedt addr = strtoull(addr_str, NULL, 16); 180aaf045f7SSteven Rostedt /* fmt still has a space, skip it */ 181aaf045f7SSteven Rostedt printk = strdup(fmt+1); 182aaf045f7SSteven Rostedt line = strtok_r(NULL, "\n", &next); 183aaf045f7SSteven Rostedt pevent_register_print_string(pevent, printk, addr); 184aaf045f7SSteven Rostedt } 185aaf045f7SSteven Rostedt } 186aaf045f7SSteven Rostedt 187da378962SArnaldo Carvalho de Melo int parse_ftrace_file(struct pevent *pevent, char *buf, unsigned long size) 188aaf045f7SSteven Rostedt { 189aaf045f7SSteven Rostedt return pevent_parse_event(pevent, buf, size, "ftrace"); 190aaf045f7SSteven Rostedt } 191aaf045f7SSteven Rostedt 192da378962SArnaldo Carvalho de Melo int parse_event_file(struct pevent *pevent, 193da378962SArnaldo Carvalho de Melo char *buf, unsigned long size, char *sys) 194aaf045f7SSteven Rostedt { 195aaf045f7SSteven Rostedt return pevent_parse_event(pevent, buf, size, sys); 196aaf045f7SSteven Rostedt } 197aaf045f7SSteven Rostedt 198da378962SArnaldo Carvalho de Melo struct event_format *trace_find_next_event(struct pevent *pevent, 199da378962SArnaldo Carvalho de Melo struct event_format *event) 200aaf045f7SSteven Rostedt { 201aaf045f7SSteven Rostedt static int idx; 202aaf045f7SSteven Rostedt 203d0d39138SNamhyung Kim if (!pevent || !pevent->events) 204aaf045f7SSteven Rostedt return NULL; 205aaf045f7SSteven Rostedt 206aaf045f7SSteven Rostedt if (!event) { 207aaf045f7SSteven Rostedt idx = 0; 208aaf045f7SSteven Rostedt return pevent->events[0]; 209aaf045f7SSteven Rostedt } 210aaf045f7SSteven Rostedt 211aaf045f7SSteven Rostedt if (idx < pevent->nr_events && event == pevent->events[idx]) { 212aaf045f7SSteven Rostedt idx++; 213aaf045f7SSteven Rostedt if (idx == pevent->nr_events) 214aaf045f7SSteven Rostedt return NULL; 215aaf045f7SSteven Rostedt return pevent->events[idx]; 216aaf045f7SSteven Rostedt } 217aaf045f7SSteven Rostedt 218aaf045f7SSteven Rostedt for (idx = 1; idx < pevent->nr_events; idx++) { 219aaf045f7SSteven Rostedt if (event == pevent->events[idx - 1]) 220aaf045f7SSteven Rostedt return pevent->events[idx]; 221aaf045f7SSteven Rostedt } 222aaf045f7SSteven Rostedt return NULL; 223aaf045f7SSteven Rostedt } 224aaf045f7SSteven Rostedt 225aaf045f7SSteven Rostedt struct flag { 226aaf045f7SSteven Rostedt const char *name; 227aaf045f7SSteven Rostedt unsigned long long value; 228aaf045f7SSteven Rostedt }; 229aaf045f7SSteven Rostedt 230aaf045f7SSteven Rostedt static const struct flag flags[] = { 231aaf045f7SSteven Rostedt { "HI_SOFTIRQ", 0 }, 232aaf045f7SSteven Rostedt { "TIMER_SOFTIRQ", 1 }, 233aaf045f7SSteven Rostedt { "NET_TX_SOFTIRQ", 2 }, 234aaf045f7SSteven Rostedt { "NET_RX_SOFTIRQ", 3 }, 235aaf045f7SSteven Rostedt { "BLOCK_SOFTIRQ", 4 }, 236aaf045f7SSteven Rostedt { "BLOCK_IOPOLL_SOFTIRQ", 5 }, 237aaf045f7SSteven Rostedt { "TASKLET_SOFTIRQ", 6 }, 238aaf045f7SSteven Rostedt { "SCHED_SOFTIRQ", 7 }, 239aaf045f7SSteven Rostedt { "HRTIMER_SOFTIRQ", 8 }, 240aaf045f7SSteven Rostedt { "RCU_SOFTIRQ", 9 }, 241aaf045f7SSteven Rostedt 242aaf045f7SSteven Rostedt { "HRTIMER_NORESTART", 0 }, 243aaf045f7SSteven Rostedt { "HRTIMER_RESTART", 1 }, 244aaf045f7SSteven Rostedt }; 245aaf045f7SSteven Rostedt 246aaf045f7SSteven Rostedt unsigned long long eval_flag(const char *flag) 247aaf045f7SSteven Rostedt { 248aaf045f7SSteven Rostedt int i; 249aaf045f7SSteven Rostedt 250aaf045f7SSteven Rostedt /* 251aaf045f7SSteven Rostedt * Some flags in the format files do not get converted. 252aaf045f7SSteven Rostedt * If the flag is not numeric, see if it is something that 253aaf045f7SSteven Rostedt * we already know about. 254aaf045f7SSteven Rostedt */ 255aaf045f7SSteven Rostedt if (isdigit(flag[0])) 256aaf045f7SSteven Rostedt return strtoull(flag, NULL, 0); 257aaf045f7SSteven Rostedt 258aaf045f7SSteven Rostedt for (i = 0; i < (int)(sizeof(flags)/sizeof(flags[0])); i++) 259aaf045f7SSteven Rostedt if (strcmp(flags[i].name, flag) == 0) 260aaf045f7SSteven Rostedt return flags[i].value; 261aaf045f7SSteven Rostedt 262aaf045f7SSteven Rostedt return 0; 2637397d80dSTom Zanussi } 264