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 <errno.h> 25aaf045f7SSteven Rostedt 261ef2ed10SFrederic Weisbecker #include "../perf.h" 27d2a74d53SArnaldo Carvalho de Melo #include "debug.h" 28ea4010d1SSteven Rostedt #include "trace-event.h" 29ea4010d1SSteven Rostedt 303d689ed6SArnaldo Carvalho de Melo #include "sane_ctype.h" 313d689ed6SArnaldo Carvalho de Melo 32aaf045f7SSteven Rostedt static int get_common_field(struct scripting_context *context, 33aaf045f7SSteven Rostedt int *offset, int *size, const char *type) 347397d80dSTom Zanussi { 35096177a8STzvetomir Stoyanov (VMware) struct tep_handle *pevent = context->pevent; 3697fbf3f0STzvetomir Stoyanov struct tep_event *event; 372c92f982STzvetomir Stoyanov (VMware) struct tep_format_field *field; 38aaf045f7SSteven Rostedt 39aaf045f7SSteven Rostedt if (!*size) { 40bb3dd7e7STzvetomir Stoyanov 41bb3dd7e7STzvetomir Stoyanov event = tep_get_first_event(pevent); 42bb3dd7e7STzvetomir Stoyanov if (!event) 43aaf045f7SSteven Rostedt return 0; 44aaf045f7SSteven Rostedt 45af85cd19STzvetomir Stoyanov (VMware) field = tep_find_common_field(event, type); 46aaf045f7SSteven Rostedt if (!field) 47aaf045f7SSteven Rostedt return 0; 48aaf045f7SSteven Rostedt *offset = field->offset; 49aaf045f7SSteven Rostedt *size = field->size; 50aaf045f7SSteven Rostedt } 51aaf045f7SSteven Rostedt 5259c1baeeSTzvetomir Stoyanov (VMware) return tep_read_number(pevent, context->event_data + *offset, *size); 537397d80dSTom Zanussi } 547397d80dSTom Zanussi 557397d80dSTom Zanussi int common_lock_depth(struct scripting_context *context) 567397d80dSTom Zanussi { 57aaf045f7SSteven Rostedt static int offset; 58aaf045f7SSteven Rostedt static int size; 59aaf045f7SSteven Rostedt int ret; 60aaf045f7SSteven Rostedt 61aaf045f7SSteven Rostedt ret = get_common_field(context, &size, &offset, 62aaf045f7SSteven Rostedt "common_lock_depth"); 63aaf045f7SSteven Rostedt if (ret < 0) 64aaf045f7SSteven Rostedt return -1; 65aaf045f7SSteven Rostedt 66aaf045f7SSteven Rostedt return ret; 67aaf045f7SSteven Rostedt } 68aaf045f7SSteven Rostedt 69aaf045f7SSteven Rostedt int common_flags(struct scripting_context *context) 70aaf045f7SSteven Rostedt { 71aaf045f7SSteven Rostedt static int offset; 72aaf045f7SSteven Rostedt static int size; 73aaf045f7SSteven Rostedt int ret; 74aaf045f7SSteven Rostedt 75aaf045f7SSteven Rostedt ret = get_common_field(context, &size, &offset, 76aaf045f7SSteven Rostedt "common_flags"); 77aaf045f7SSteven Rostedt if (ret < 0) 78aaf045f7SSteven Rostedt return -1; 79aaf045f7SSteven Rostedt 80aaf045f7SSteven Rostedt return ret; 81aaf045f7SSteven Rostedt } 82aaf045f7SSteven Rostedt 83aaf045f7SSteven Rostedt int common_pc(struct scripting_context *context) 84aaf045f7SSteven Rostedt { 85aaf045f7SSteven Rostedt static int offset; 86aaf045f7SSteven Rostedt static int size; 87aaf045f7SSteven Rostedt int ret; 88aaf045f7SSteven Rostedt 89aaf045f7SSteven Rostedt ret = get_common_field(context, &size, &offset, 90aaf045f7SSteven Rostedt "common_preempt_count"); 91aaf045f7SSteven Rostedt if (ret < 0) 92aaf045f7SSteven Rostedt return -1; 93aaf045f7SSteven Rostedt 94aaf045f7SSteven Rostedt return ret; 95aaf045f7SSteven Rostedt } 96aaf045f7SSteven Rostedt 97aaf045f7SSteven Rostedt unsigned long long 9897fbf3f0STzvetomir Stoyanov raw_field_value(struct tep_event *event, const char *name, void *data) 99aaf045f7SSteven Rostedt { 1002c92f982STzvetomir Stoyanov (VMware) struct tep_format_field *field; 101aaf045f7SSteven Rostedt unsigned long long val; 102aaf045f7SSteven Rostedt 103af85cd19STzvetomir Stoyanov (VMware) field = tep_find_any_field(event, name); 104aaf045f7SSteven Rostedt if (!field) 105aaf045f7SSteven Rostedt return 0ULL; 106aaf045f7SSteven Rostedt 10759c1baeeSTzvetomir Stoyanov (VMware) tep_read_number_field(field, data, &val); 108aaf045f7SSteven Rostedt 109aaf045f7SSteven Rostedt return val; 110aaf045f7SSteven Rostedt } 111aaf045f7SSteven Rostedt 11297fbf3f0STzvetomir Stoyanov unsigned long long read_size(struct tep_event *event, void *ptr, int size) 113aaf045f7SSteven Rostedt { 11459c1baeeSTzvetomir Stoyanov (VMware) return tep_read_number(event->pevent, ptr, size); 115aaf045f7SSteven Rostedt } 116aaf045f7SSteven Rostedt 11797fbf3f0STzvetomir Stoyanov void event_format__fprintf(struct tep_event *event, 118aa1aac17SArnaldo Carvalho de Melo int cpu, void *data, int size, FILE *fp) 119aaf045f7SSteven Rostedt { 120cbc49b25STzvetomir Stoyanov (VMware) struct tep_record record; 121aaf045f7SSteven Rostedt struct trace_seq s; 122aaf045f7SSteven Rostedt 123aaf045f7SSteven Rostedt memset(&record, 0, sizeof(record)); 124aaf045f7SSteven Rostedt record.cpu = cpu; 125aaf045f7SSteven Rostedt record.size = size; 126aaf045f7SSteven Rostedt record.data = data; 127aaf045f7SSteven Rostedt 128aaf045f7SSteven Rostedt trace_seq_init(&s); 1294d5c58b1STzvetomir Stoyanov (VMware) tep_event_info(&s, event, &record); 130aa1aac17SArnaldo Carvalho de Melo trace_seq_do_fprintf(&s, fp); 131b58f608eSJiri Olsa trace_seq_destroy(&s); 132aaf045f7SSteven Rostedt } 133aaf045f7SSteven Rostedt 13497fbf3f0STzvetomir Stoyanov void event_format__print(struct tep_event *event, 135aa1aac17SArnaldo Carvalho de Melo int cpu, void *data, int size) 136aa1aac17SArnaldo Carvalho de Melo { 137aa1aac17SArnaldo Carvalho de Melo return event_format__fprintf(event, cpu, data, size, stdout); 138aa1aac17SArnaldo Carvalho de Melo } 139aa1aac17SArnaldo Carvalho de Melo 140096177a8STzvetomir Stoyanov (VMware) void parse_ftrace_printk(struct tep_handle *pevent, 1411d037ca1SIrina Tirdea char *file, unsigned int size __maybe_unused) 142aaf045f7SSteven Rostedt { 143aaf045f7SSteven Rostedt unsigned long long addr; 144aaf045f7SSteven Rostedt char *printk; 145aaf045f7SSteven Rostedt char *line; 146aaf045f7SSteven Rostedt char *next = NULL; 147aaf045f7SSteven Rostedt char *addr_str; 1485bcaaca3SMartin Liška char *fmt = NULL; 149aaf045f7SSteven Rostedt 150aaf045f7SSteven Rostedt line = strtok_r(file, "\n", &next); 151aaf045f7SSteven Rostedt while (line) { 152aaf045f7SSteven Rostedt addr_str = strtok_r(line, ":", &fmt); 153aaf045f7SSteven Rostedt if (!addr_str) { 154d2a74d53SArnaldo Carvalho de Melo pr_warning("printk format with empty entry"); 155aaf045f7SSteven Rostedt break; 156aaf045f7SSteven Rostedt } 157aaf045f7SSteven Rostedt addr = strtoull(addr_str, NULL, 16); 158aaf045f7SSteven Rostedt /* fmt still has a space, skip it */ 159aaf045f7SSteven Rostedt printk = strdup(fmt+1); 160aaf045f7SSteven Rostedt line = strtok_r(NULL, "\n", &next); 16113a41890STzvetomir Stoyanov (VMware) tep_register_print_string(pevent, printk, addr); 1629c8a182eSSanskriti Sharma free(printk); 163aaf045f7SSteven Rostedt } 164aaf045f7SSteven Rostedt } 165aaf045f7SSteven Rostedt 166096177a8STzvetomir Stoyanov (VMware) void parse_saved_cmdline(struct tep_handle *pevent, 167cd4ceb63SNamhyung Kim char *file, unsigned int size __maybe_unused) 168cd4ceb63SNamhyung Kim { 169c9f23d2bSChris Phlipot char comm[17]; /* Max comm length in the kernel is 16. */ 170cd4ceb63SNamhyung Kim char *line; 171cd4ceb63SNamhyung Kim char *next = NULL; 172cd4ceb63SNamhyung Kim int pid; 173cd4ceb63SNamhyung Kim 174cd4ceb63SNamhyung Kim line = strtok_r(file, "\n", &next); 175cd4ceb63SNamhyung Kim while (line) { 176c9f23d2bSChris Phlipot if (sscanf(line, "%d %16s", &pid, comm) == 2) 17713a41890STzvetomir Stoyanov (VMware) tep_register_comm(pevent, comm, pid); 178cd4ceb63SNamhyung Kim line = strtok_r(NULL, "\n", &next); 179cd4ceb63SNamhyung Kim } 180cd4ceb63SNamhyung Kim } 181cd4ceb63SNamhyung Kim 182096177a8STzvetomir Stoyanov (VMware) int parse_ftrace_file(struct tep_handle *pevent, char *buf, unsigned long size) 183aaf045f7SSteven Rostedt { 184c60167c1STzvetomir Stoyanov (VMware) return tep_parse_event(pevent, buf, size, "ftrace"); 185aaf045f7SSteven Rostedt } 186aaf045f7SSteven Rostedt 187096177a8STzvetomir Stoyanov (VMware) int parse_event_file(struct tep_handle *pevent, 188da378962SArnaldo Carvalho de Melo char *buf, unsigned long size, char *sys) 189aaf045f7SSteven Rostedt { 190c60167c1STzvetomir Stoyanov (VMware) return tep_parse_event(pevent, buf, size, sys); 191aaf045f7SSteven Rostedt } 192aaf045f7SSteven Rostedt 19397fbf3f0STzvetomir Stoyanov struct tep_event *trace_find_next_event(struct tep_handle *pevent, 19497fbf3f0STzvetomir Stoyanov struct tep_event *event) 195aaf045f7SSteven Rostedt { 196aaf045f7SSteven Rostedt static int idx; 197bb3dd7e7STzvetomir Stoyanov int events_count; 19897fbf3f0STzvetomir Stoyanov struct tep_event *all_events; 199aaf045f7SSteven Rostedt 200bb3dd7e7STzvetomir Stoyanov all_events = tep_get_first_event(pevent); 201bb3dd7e7STzvetomir Stoyanov events_count = tep_get_events_count(pevent); 202bb3dd7e7STzvetomir Stoyanov if (!pevent || !all_events || events_count < 1) 203aaf045f7SSteven Rostedt return NULL; 204aaf045f7SSteven Rostedt 205aaf045f7SSteven Rostedt if (!event) { 206aaf045f7SSteven Rostedt idx = 0; 207bb3dd7e7STzvetomir Stoyanov return all_events; 208aaf045f7SSteven Rostedt } 209aaf045f7SSteven Rostedt 210bb3dd7e7STzvetomir Stoyanov if (idx < events_count && event == (all_events + idx)) { 211aaf045f7SSteven Rostedt idx++; 212bb3dd7e7STzvetomir Stoyanov if (idx == events_count) 213aaf045f7SSteven Rostedt return NULL; 214bb3dd7e7STzvetomir Stoyanov return (all_events + idx); 215aaf045f7SSteven Rostedt } 216aaf045f7SSteven Rostedt 217bb3dd7e7STzvetomir Stoyanov for (idx = 1; idx < events_count; idx++) { 218bb3dd7e7STzvetomir Stoyanov if (event == (all_events + (idx - 1))) 219bb3dd7e7STzvetomir Stoyanov return (all_events + idx); 220aaf045f7SSteven Rostedt } 221aaf045f7SSteven Rostedt return NULL; 222aaf045f7SSteven Rostedt } 223aaf045f7SSteven Rostedt 224aaf045f7SSteven Rostedt struct flag { 225aaf045f7SSteven Rostedt const char *name; 226aaf045f7SSteven Rostedt unsigned long long value; 227aaf045f7SSteven Rostedt }; 228aaf045f7SSteven Rostedt 229aaf045f7SSteven Rostedt static const struct flag flags[] = { 230aaf045f7SSteven Rostedt { "HI_SOFTIRQ", 0 }, 231aaf045f7SSteven Rostedt { "TIMER_SOFTIRQ", 1 }, 232aaf045f7SSteven Rostedt { "NET_TX_SOFTIRQ", 2 }, 233aaf045f7SSteven Rostedt { "NET_RX_SOFTIRQ", 3 }, 234aaf045f7SSteven Rostedt { "BLOCK_SOFTIRQ", 4 }, 235511cbce2SChristoph Hellwig { "IRQ_POLL_SOFTIRQ", 5 }, 236aaf045f7SSteven Rostedt { "TASKLET_SOFTIRQ", 6 }, 237aaf045f7SSteven Rostedt { "SCHED_SOFTIRQ", 7 }, 238aaf045f7SSteven Rostedt { "HRTIMER_SOFTIRQ", 8 }, 239aaf045f7SSteven Rostedt { "RCU_SOFTIRQ", 9 }, 240aaf045f7SSteven Rostedt 241aaf045f7SSteven Rostedt { "HRTIMER_NORESTART", 0 }, 242aaf045f7SSteven Rostedt { "HRTIMER_RESTART", 1 }, 243aaf045f7SSteven Rostedt }; 244aaf045f7SSteven Rostedt 245aaf045f7SSteven Rostedt unsigned long long eval_flag(const char *flag) 246aaf045f7SSteven Rostedt { 247aaf045f7SSteven Rostedt int i; 248aaf045f7SSteven Rostedt 249aaf045f7SSteven Rostedt /* 250aaf045f7SSteven Rostedt * Some flags in the format files do not get converted. 251aaf045f7SSteven Rostedt * If the flag is not numeric, see if it is something that 252aaf045f7SSteven Rostedt * we already know about. 253aaf045f7SSteven Rostedt */ 254aaf045f7SSteven Rostedt if (isdigit(flag[0])) 255aaf045f7SSteven Rostedt return strtoull(flag, NULL, 0); 256aaf045f7SSteven Rostedt 257aaf045f7SSteven Rostedt for (i = 0; i < (int)(sizeof(flags)/sizeof(flags[0])); i++) 258aaf045f7SSteven Rostedt if (strcmp(flags[i].name, flag) == 0) 259aaf045f7SSteven Rostedt return flags[i].value; 260aaf045f7SSteven Rostedt 261aaf045f7SSteven Rostedt return 0; 2627397d80dSTom Zanussi } 263