Merge branch 'perfcounters/tracing' into perfcounters/core
Merge reason: this topic is ready now to merge into the main
development branch for .32, with functional
perf trace output.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Ingo Molnar
commit
19c959627a
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|
@ -347,6 +347,9 @@ LIB_OBJS += util/values.o
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LIB_OBJS += util/debug.o
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LIB_OBJS += util/map.o
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LIB_OBJS += util/thread.o
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LIB_OBJS += util/trace-event-parse.o
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LIB_OBJS += util/trace-event-read.o
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LIB_OBJS += util/trace-event-info.o
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BUILTIN_OBJS += builtin-annotate.o
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BUILTIN_OBJS += builtin-help.o
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@ -355,6 +358,7 @@ BUILTIN_OBJS += builtin-record.o
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BUILTIN_OBJS += builtin-report.o
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BUILTIN_OBJS += builtin-stat.o
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BUILTIN_OBJS += builtin-top.o
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BUILTIN_OBJS += builtin-trace.o
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PERFLIBS = $(LIB_FILE)
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@ -17,6 +17,7 @@
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#include "util/header.h"
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#include "util/event.h"
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#include "util/debug.h"
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#include "util/trace-event.h"
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#include <unistd.h>
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#include <sched.h>
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@ -546,6 +547,17 @@ static int __cmd_record(int argc, const char **argv)
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else
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header = perf_header__new();
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if (raw_samples) {
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read_tracing_data(attrs, nr_counters);
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} else {
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for (i = 0; i < nr_counters; i++) {
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if (attrs[i].sample_type & PERF_SAMPLE_RAW) {
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read_tracing_data(attrs, nr_counters);
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break;
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}
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}
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}
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atexit(atexit_header);
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if (!system_wide) {
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@ -1428,7 +1428,7 @@ static int __cmd_report(void)
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exit(-1);
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}
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if (callchain) {
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fprintf(stderr, "selected -c but no callchain data."
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fprintf(stderr, "selected -g but no callchain data."
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" Did you call perf record without"
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" -g?\n");
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exit(-1);
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@ -0,0 +1,282 @@
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#include "builtin.h"
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#include "util/util.h"
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#include "util/cache.h"
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#include "util/symbol.h"
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#include "util/thread.h"
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#include "util/header.h"
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#include "util/parse-options.h"
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#include "perf.h"
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#include "util/debug.h"
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#include "util/trace-event.h"
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static char const *input_name = "perf.data";
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static int input;
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static unsigned long page_size;
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static unsigned long mmap_window = 32;
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static unsigned long total = 0;
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static unsigned long total_comm = 0;
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static struct rb_root threads;
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static struct thread *last_match;
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static struct perf_header *header;
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static u64 sample_type;
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static int
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process_comm_event(event_t *event, unsigned long offset, unsigned long head)
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{
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struct thread *thread;
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thread = threads__findnew(event->comm.pid, &threads, &last_match);
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dump_printf("%p [%p]: PERF_EVENT_COMM: %s:%d\n",
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(void *)(offset + head),
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(void *)(long)(event->header.size),
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event->comm.comm, event->comm.pid);
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if (thread == NULL ||
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thread__set_comm(thread, event->comm.comm)) {
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dump_printf("problem processing PERF_EVENT_COMM, skipping event.\n");
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return -1;
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}
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total_comm++;
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return 0;
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}
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static int
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process_sample_event(event_t *event, unsigned long offset, unsigned long head)
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{
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char level;
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int show = 0;
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struct dso *dso = NULL;
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struct thread *thread;
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u64 ip = event->ip.ip;
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u64 period = 1;
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void *more_data = event->ip.__more_data;
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int cpumode;
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thread = threads__findnew(event->ip.pid, &threads, &last_match);
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if (sample_type & PERF_SAMPLE_PERIOD) {
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period = *(u64 *)more_data;
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more_data += sizeof(u64);
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}
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dump_printf("%p [%p]: PERF_EVENT_SAMPLE (IP, %d): %d/%d: %p period: %Ld\n",
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(void *)(offset + head),
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(void *)(long)(event->header.size),
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event->header.misc,
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event->ip.pid, event->ip.tid,
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(void *)(long)ip,
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(long long)period);
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dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
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if (thread == NULL) {
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eprintf("problem processing %d event, skipping it.\n",
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event->header.type);
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return -1;
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}
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cpumode = event->header.misc & PERF_EVENT_MISC_CPUMODE_MASK;
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if (cpumode == PERF_EVENT_MISC_KERNEL) {
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show = SHOW_KERNEL;
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level = 'k';
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dso = kernel_dso;
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dump_printf(" ...... dso: %s\n", dso->name);
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} else if (cpumode == PERF_EVENT_MISC_USER) {
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show = SHOW_USER;
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level = '.';
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} else {
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show = SHOW_HV;
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level = 'H';
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dso = hypervisor_dso;
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dump_printf(" ...... dso: [hypervisor]\n");
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}
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if (sample_type & PERF_SAMPLE_RAW) {
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struct {
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u32 size;
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char data[0];
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} *raw = more_data;
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/*
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* FIXME: better resolve from pid from the struct trace_entry
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* field, although it should be the same than this perf
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* event pid
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*/
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print_event(0, raw->data, raw->size, 0, thread->comm);
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}
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total += period;
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return 0;
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}
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static int
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process_event(event_t *event, unsigned long offset, unsigned long head)
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{
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trace_event(event);
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switch (event->header.type) {
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case PERF_EVENT_MMAP ... PERF_EVENT_LOST:
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return 0;
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case PERF_EVENT_COMM:
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return process_comm_event(event, offset, head);
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case PERF_EVENT_EXIT ... PERF_EVENT_READ:
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return 0;
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case PERF_EVENT_SAMPLE:
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return process_sample_event(event, offset, head);
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case PERF_EVENT_MAX:
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default:
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return -1;
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}
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return 0;
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}
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static int __cmd_trace(void)
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{
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int ret, rc = EXIT_FAILURE;
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unsigned long offset = 0;
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unsigned long head = 0;
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struct stat perf_stat;
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event_t *event;
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uint32_t size;
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char *buf;
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trace_report();
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input = open(input_name, O_RDONLY);
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if (input < 0) {
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perror("failed to open file");
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exit(-1);
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}
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ret = fstat(input, &perf_stat);
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if (ret < 0) {
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perror("failed to stat file");
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exit(-1);
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}
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if (!perf_stat.st_size) {
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fprintf(stderr, "zero-sized file, nothing to do!\n");
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exit(0);
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}
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header = perf_header__read(input);
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sample_type = perf_header__sample_type(header);
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if (!(sample_type & PERF_SAMPLE_RAW))
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die("No trace sample to read. Did you call perf record "
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"without -R?");
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if (load_kernel() < 0) {
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perror("failed to load kernel symbols");
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return EXIT_FAILURE;
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}
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remap:
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buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ,
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MAP_SHARED, input, offset);
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if (buf == MAP_FAILED) {
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perror("failed to mmap file");
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exit(-1);
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}
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more:
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event = (event_t *)(buf + head);
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size = event->header.size;
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if (!size)
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size = 8;
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if (head + event->header.size >= page_size * mmap_window) {
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unsigned long shift = page_size * (head / page_size);
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int res;
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res = munmap(buf, page_size * mmap_window);
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assert(res == 0);
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offset += shift;
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head -= shift;
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goto remap;
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}
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size = event->header.size;
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if (!size || process_event(event, offset, head) < 0) {
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/*
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* assume we lost track of the stream, check alignment, and
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* increment a single u64 in the hope to catch on again 'soon'.
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*/
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if (unlikely(head & 7))
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head &= ~7ULL;
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size = 8;
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}
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head += size;
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if (offset + head < (unsigned long)perf_stat.st_size)
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goto more;
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rc = EXIT_SUCCESS;
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close(input);
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return rc;
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}
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static const char * const annotate_usage[] = {
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"perf trace [<options>] <command>",
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NULL
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};
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static const struct option options[] = {
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OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
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"dump raw trace in ASCII"),
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OPT_BOOLEAN('v', "verbose", &verbose,
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"be more verbose (show symbol address, etc)"),
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OPT_END()
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};
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int cmd_trace(int argc, const char **argv, const char *prefix __used)
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{
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symbol__init();
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page_size = getpagesize();
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argc = parse_options(argc, argv, options, annotate_usage, 0);
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if (argc) {
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/*
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* Special case: if there's an argument left then assume tha
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* it's a symbol filter:
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*/
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if (argc > 1)
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usage_with_options(annotate_usage, options);
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}
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setup_pager();
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return __cmd_trace();
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}
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@ -292,6 +292,7 @@ static void handle_internal_command(int argc, const char **argv)
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{ "top", cmd_top, 0 },
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{ "annotate", cmd_annotate, 0 },
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{ "version", cmd_version, 0 },
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{ "trace", cmd_trace, 0 },
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};
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unsigned int i;
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static const char ext[] = STRIP_EXTENSION;
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|
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@ -158,9 +158,9 @@ int valid_debugfs_mount(const char *debugfs)
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return 0;
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}
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static const char *tracepoint_id_to_name(u64 config)
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struct tracepoint_path *tracepoint_id_to_path(u64 config)
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{
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static char tracepoint_name[2 * MAX_EVENT_LENGTH];
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struct tracepoint_path *path = NULL;
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DIR *sys_dir, *evt_dir;
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struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
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struct stat st;
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@ -170,7 +170,7 @@ static const char *tracepoint_id_to_name(u64 config)
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char evt_path[MAXPATHLEN];
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if (valid_debugfs_mount(debugfs_path))
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return "unkown";
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return NULL;
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||||
sys_dir = opendir(debugfs_path);
|
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if (!sys_dir)
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||||
|
|
@ -197,10 +197,23 @@ static const char *tracepoint_id_to_name(u64 config)
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|||
if (id == config) {
|
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closedir(evt_dir);
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closedir(sys_dir);
|
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snprintf(tracepoint_name, 2 * MAX_EVENT_LENGTH,
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"%s:%s", sys_dirent.d_name,
|
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evt_dirent.d_name);
|
||||
return tracepoint_name;
|
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path = calloc(1, sizeof(path));
|
||||
path->system = malloc(MAX_EVENT_LENGTH);
|
||||
if (!path->system) {
|
||||
free(path);
|
||||
return NULL;
|
||||
}
|
||||
path->name = malloc(MAX_EVENT_LENGTH);
|
||||
if (!path->name) {
|
||||
free(path->system);
|
||||
free(path);
|
||||
return NULL;
|
||||
}
|
||||
strncpy(path->system, sys_dirent.d_name,
|
||||
MAX_EVENT_LENGTH);
|
||||
strncpy(path->name, evt_dirent.d_name,
|
||||
MAX_EVENT_LENGTH);
|
||||
return path;
|
||||
}
|
||||
}
|
||||
closedir(evt_dir);
|
||||
|
|
@ -208,7 +221,25 @@ static const char *tracepoint_id_to_name(u64 config)
|
|||
|
||||
cleanup:
|
||||
closedir(sys_dir);
|
||||
return "unkown";
|
||||
return NULL;
|
||||
}
|
||||
|
||||
#define TP_PATH_LEN (MAX_EVENT_LENGTH * 2 + 1)
|
||||
static const char *tracepoint_id_to_name(u64 config)
|
||||
{
|
||||
static char buf[TP_PATH_LEN];
|
||||
struct tracepoint_path *path;
|
||||
|
||||
path = tracepoint_id_to_path(config);
|
||||
if (path) {
|
||||
snprintf(buf, TP_PATH_LEN, "%s:%s", path->system, path->name);
|
||||
free(path->name);
|
||||
free(path->system);
|
||||
free(path);
|
||||
} else
|
||||
snprintf(buf, TP_PATH_LEN, "%s:%s", "unknown", "unknown");
|
||||
|
||||
return buf;
|
||||
}
|
||||
|
||||
static int is_cache_op_valid(u8 cache_type, u8 cache_op)
|
||||
|
|
|
|||
|
|
@ -1,10 +1,19 @@
|
|||
|
||||
#ifndef _PARSE_EVENTS_H
|
||||
#define _PARSE_EVENTS_H
|
||||
/*
|
||||
* Parse symbolic events/counts passed in as options:
|
||||
*/
|
||||
|
||||
struct option;
|
||||
|
||||
struct tracepoint_path {
|
||||
char *system;
|
||||
char *name;
|
||||
struct tracepoint_path *next;
|
||||
};
|
||||
|
||||
extern struct tracepoint_path *tracepoint_id_to_path(u64 config);
|
||||
|
||||
extern int nr_counters;
|
||||
|
||||
extern struct perf_counter_attr attrs[MAX_COUNTERS];
|
||||
|
|
@ -21,3 +30,5 @@ extern void print_events(void);
|
|||
extern char debugfs_path[];
|
||||
extern int valid_debugfs_mount(const char *debugfs);
|
||||
|
||||
|
||||
#endif /* _PARSE_EVENTS_H */
|
||||
|
|
|
|||
|
|
@ -0,0 +1,539 @@
|
|||
/*
|
||||
* Copyright (C) 2008,2009, Steven Rostedt <srostedt@redhat.com>
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; version 2 of the License (not later!)
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
#define _GNU_SOURCE
|
||||
#include <dirent.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <stdarg.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <sys/wait.h>
|
||||
#include <pthread.h>
|
||||
#include <fcntl.h>
|
||||
#include <unistd.h>
|
||||
#include <ctype.h>
|
||||
#include <errno.h>
|
||||
#include <stdbool.h>
|
||||
|
||||
#include "../perf.h"
|
||||
#include "trace-event.h"
|
||||
|
||||
|
||||
#define VERSION "0.5"
|
||||
|
||||
#define _STR(x) #x
|
||||
#define STR(x) _STR(x)
|
||||
#define MAX_PATH 256
|
||||
|
||||
#define TRACE_CTRL "tracing_on"
|
||||
#define TRACE "trace"
|
||||
#define AVAILABLE "available_tracers"
|
||||
#define CURRENT "current_tracer"
|
||||
#define ITER_CTRL "trace_options"
|
||||
#define MAX_LATENCY "tracing_max_latency"
|
||||
|
||||
unsigned int page_size;
|
||||
|
||||
static const char *output_file = "trace.info";
|
||||
static int output_fd;
|
||||
|
||||
struct event_list {
|
||||
struct event_list *next;
|
||||
const char *event;
|
||||
};
|
||||
|
||||
struct events {
|
||||
struct events *sibling;
|
||||
struct events *children;
|
||||
struct events *next;
|
||||
char *name;
|
||||
};
|
||||
|
||||
|
||||
|
||||
static void die(const char *fmt, ...)
|
||||
{
|
||||
va_list ap;
|
||||
int ret = errno;
|
||||
|
||||
if (errno)
|
||||
perror("trace-cmd");
|
||||
else
|
||||
ret = -1;
|
||||
|
||||
va_start(ap, fmt);
|
||||
fprintf(stderr, " ");
|
||||
vfprintf(stderr, fmt, ap);
|
||||
va_end(ap);
|
||||
|
||||
fprintf(stderr, "\n");
|
||||
exit(ret);
|
||||
}
|
||||
|
||||
void *malloc_or_die(unsigned int size)
|
||||
{
|
||||
void *data;
|
||||
|
||||
data = malloc(size);
|
||||
if (!data)
|
||||
die("malloc");
|
||||
return data;
|
||||
}
|
||||
|
||||
static const char *find_debugfs(void)
|
||||
{
|
||||
static char debugfs[MAX_PATH+1];
|
||||
static int debugfs_found;
|
||||
char type[100];
|
||||
FILE *fp;
|
||||
|
||||
if (debugfs_found)
|
||||
return debugfs;
|
||||
|
||||
if ((fp = fopen("/proc/mounts","r")) == NULL)
|
||||
die("Can't open /proc/mounts for read");
|
||||
|
||||
while (fscanf(fp, "%*s %"
|
||||
STR(MAX_PATH)
|
||||
"s %99s %*s %*d %*d\n",
|
||||
debugfs, type) == 2) {
|
||||
if (strcmp(type, "debugfs") == 0)
|
||||
break;
|
||||
}
|
||||
fclose(fp);
|
||||
|
||||
if (strcmp(type, "debugfs") != 0)
|
||||
die("debugfs not mounted, please mount");
|
||||
|
||||
debugfs_found = 1;
|
||||
|
||||
return debugfs;
|
||||
}
|
||||
|
||||
/*
|
||||
* Finds the path to the debugfs/tracing
|
||||
* Allocates the string and stores it.
|
||||
*/
|
||||
static const char *find_tracing_dir(void)
|
||||
{
|
||||
static char *tracing;
|
||||
static int tracing_found;
|
||||
const char *debugfs;
|
||||
|
||||
if (tracing_found)
|
||||
return tracing;
|
||||
|
||||
debugfs = find_debugfs();
|
||||
|
||||
tracing = malloc_or_die(strlen(debugfs) + 9);
|
||||
|
||||
sprintf(tracing, "%s/tracing", debugfs);
|
||||
|
||||
tracing_found = 1;
|
||||
return tracing;
|
||||
}
|
||||
|
||||
static char *get_tracing_file(const char *name)
|
||||
{
|
||||
const char *tracing;
|
||||
char *file;
|
||||
|
||||
tracing = find_tracing_dir();
|
||||
if (!tracing)
|
||||
return NULL;
|
||||
|
||||
file = malloc_or_die(strlen(tracing) + strlen(name) + 2);
|
||||
|
||||
sprintf(file, "%s/%s", tracing, name);
|
||||
return file;
|
||||
}
|
||||
|
||||
static void put_tracing_file(char *file)
|
||||
{
|
||||
free(file);
|
||||
}
|
||||
|
||||
static ssize_t write_or_die(const void *buf, size_t len)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = write(output_fd, buf, len);
|
||||
if (ret < 0)
|
||||
die("writing to '%s'", output_file);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int bigendian(void)
|
||||
{
|
||||
unsigned char str[] = { 0x1, 0x2, 0x3, 0x4, 0x0, 0x0, 0x0, 0x0};
|
||||
unsigned int *ptr;
|
||||
|
||||
ptr = (unsigned int *)str;
|
||||
return *ptr == 0x01020304;
|
||||
}
|
||||
|
||||
static unsigned long long copy_file_fd(int fd)
|
||||
{
|
||||
unsigned long long size = 0;
|
||||
char buf[BUFSIZ];
|
||||
int r;
|
||||
|
||||
do {
|
||||
r = read(fd, buf, BUFSIZ);
|
||||
if (r > 0) {
|
||||
size += r;
|
||||
write_or_die(buf, r);
|
||||
}
|
||||
} while (r > 0);
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
static unsigned long long copy_file(const char *file)
|
||||
{
|
||||
unsigned long long size = 0;
|
||||
int fd;
|
||||
|
||||
fd = open(file, O_RDONLY);
|
||||
if (fd < 0)
|
||||
die("Can't read '%s'", file);
|
||||
size = copy_file_fd(fd);
|
||||
close(fd);
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
static unsigned long get_size_fd(int fd)
|
||||
{
|
||||
unsigned long long size = 0;
|
||||
char buf[BUFSIZ];
|
||||
int r;
|
||||
|
||||
do {
|
||||
r = read(fd, buf, BUFSIZ);
|
||||
if (r > 0)
|
||||
size += r;
|
||||
} while (r > 0);
|
||||
|
||||
lseek(fd, 0, SEEK_SET);
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
static unsigned long get_size(const char *file)
|
||||
{
|
||||
unsigned long long size = 0;
|
||||
int fd;
|
||||
|
||||
fd = open(file, O_RDONLY);
|
||||
if (fd < 0)
|
||||
die("Can't read '%s'", file);
|
||||
size = get_size_fd(fd);
|
||||
close(fd);
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
static void read_header_files(void)
|
||||
{
|
||||
unsigned long long size, check_size;
|
||||
char *path;
|
||||
int fd;
|
||||
|
||||
path = get_tracing_file("events/header_page");
|
||||
fd = open(path, O_RDONLY);
|
||||
if (fd < 0)
|
||||
die("can't read '%s'", path);
|
||||
|
||||
/* unfortunately, you can not stat debugfs files for size */
|
||||
size = get_size_fd(fd);
|
||||
|
||||
write_or_die("header_page", 12);
|
||||
write_or_die(&size, 8);
|
||||
check_size = copy_file_fd(fd);
|
||||
if (size != check_size)
|
||||
die("wrong size for '%s' size=%lld read=%lld",
|
||||
path, size, check_size);
|
||||
put_tracing_file(path);
|
||||
|
||||
path = get_tracing_file("events/header_event");
|
||||
fd = open(path, O_RDONLY);
|
||||
if (fd < 0)
|
||||
die("can't read '%s'", path);
|
||||
|
||||
size = get_size_fd(fd);
|
||||
|
||||
write_or_die("header_event", 13);
|
||||
write_or_die(&size, 8);
|
||||
check_size = copy_file_fd(fd);
|
||||
if (size != check_size)
|
||||
die("wrong size for '%s'", path);
|
||||
put_tracing_file(path);
|
||||
}
|
||||
|
||||
static bool name_in_tp_list(char *sys, struct tracepoint_path *tps)
|
||||
{
|
||||
while (tps) {
|
||||
if (!strcmp(sys, tps->name))
|
||||
return true;
|
||||
tps = tps->next;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
static void copy_event_system(const char *sys, struct tracepoint_path *tps)
|
||||
{
|
||||
unsigned long long size, check_size;
|
||||
struct dirent *dent;
|
||||
struct stat st;
|
||||
char *format;
|
||||
DIR *dir;
|
||||
int count = 0;
|
||||
int ret;
|
||||
|
||||
dir = opendir(sys);
|
||||
if (!dir)
|
||||
die("can't read directory '%s'", sys);
|
||||
|
||||
while ((dent = readdir(dir))) {
|
||||
if (strcmp(dent->d_name, ".") == 0 ||
|
||||
strcmp(dent->d_name, "..") == 0 ||
|
||||
!name_in_tp_list(dent->d_name, tps))
|
||||
continue;
|
||||
format = malloc_or_die(strlen(sys) + strlen(dent->d_name) + 10);
|
||||
sprintf(format, "%s/%s/format", sys, dent->d_name);
|
||||
ret = stat(format, &st);
|
||||
free(format);
|
||||
if (ret < 0)
|
||||
continue;
|
||||
count++;
|
||||
}
|
||||
|
||||
write_or_die(&count, 4);
|
||||
|
||||
rewinddir(dir);
|
||||
while ((dent = readdir(dir))) {
|
||||
if (strcmp(dent->d_name, ".") == 0 ||
|
||||
strcmp(dent->d_name, "..") == 0 ||
|
||||
!name_in_tp_list(dent->d_name, tps))
|
||||
continue;
|
||||
format = malloc_or_die(strlen(sys) + strlen(dent->d_name) + 10);
|
||||
sprintf(format, "%s/%s/format", sys, dent->d_name);
|
||||
ret = stat(format, &st);
|
||||
|
||||
if (ret >= 0) {
|
||||
/* unfortunately, you can not stat debugfs files for size */
|
||||
size = get_size(format);
|
||||
write_or_die(&size, 8);
|
||||
check_size = copy_file(format);
|
||||
if (size != check_size)
|
||||
die("error in size of file '%s'", format);
|
||||
}
|
||||
|
||||
free(format);
|
||||
}
|
||||
}
|
||||
|
||||
static void read_ftrace_files(struct tracepoint_path *tps)
|
||||
{
|
||||
char *path;
|
||||
|
||||
path = get_tracing_file("events/ftrace");
|
||||
|
||||
copy_event_system(path, tps);
|
||||
|
||||
put_tracing_file(path);
|
||||
}
|
||||
|
||||
static bool system_in_tp_list(char *sys, struct tracepoint_path *tps)
|
||||
{
|
||||
while (tps) {
|
||||
if (!strcmp(sys, tps->system))
|
||||
return true;
|
||||
tps = tps->next;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
static void read_event_files(struct tracepoint_path *tps)
|
||||
{
|
||||
struct dirent *dent;
|
||||
struct stat st;
|
||||
char *path;
|
||||
char *sys;
|
||||
DIR *dir;
|
||||
int count = 0;
|
||||
int ret;
|
||||
|
||||
path = get_tracing_file("events");
|
||||
|
||||
dir = opendir(path);
|
||||
if (!dir)
|
||||
die("can't read directory '%s'", path);
|
||||
|
||||
while ((dent = readdir(dir))) {
|
||||
if (strcmp(dent->d_name, ".") == 0 ||
|
||||
strcmp(dent->d_name, "..") == 0 ||
|
||||
strcmp(dent->d_name, "ftrace") == 0 ||
|
||||
!system_in_tp_list(dent->d_name, tps))
|
||||
continue;
|
||||
sys = malloc_or_die(strlen(path) + strlen(dent->d_name) + 2);
|
||||
sprintf(sys, "%s/%s", path, dent->d_name);
|
||||
ret = stat(sys, &st);
|
||||
free(sys);
|
||||
if (ret < 0)
|
||||
continue;
|
||||
if (S_ISDIR(st.st_mode))
|
||||
count++;
|
||||
}
|
||||
|
||||
write_or_die(&count, 4);
|
||||
|
||||
rewinddir(dir);
|
||||
while ((dent = readdir(dir))) {
|
||||
if (strcmp(dent->d_name, ".") == 0 ||
|
||||
strcmp(dent->d_name, "..") == 0 ||
|
||||
strcmp(dent->d_name, "ftrace") == 0 ||
|
||||
!system_in_tp_list(dent->d_name, tps))
|
||||
continue;
|
||||
sys = malloc_or_die(strlen(path) + strlen(dent->d_name) + 2);
|
||||
sprintf(sys, "%s/%s", path, dent->d_name);
|
||||
ret = stat(sys, &st);
|
||||
if (ret >= 0) {
|
||||
if (S_ISDIR(st.st_mode)) {
|
||||
write_or_die(dent->d_name, strlen(dent->d_name) + 1);
|
||||
copy_event_system(sys, tps);
|
||||
}
|
||||
}
|
||||
free(sys);
|
||||
}
|
||||
|
||||
put_tracing_file(path);
|
||||
}
|
||||
|
||||
static void read_proc_kallsyms(void)
|
||||
{
|
||||
unsigned int size, check_size;
|
||||
const char *path = "/proc/kallsyms";
|
||||
struct stat st;
|
||||
int ret;
|
||||
|
||||
ret = stat(path, &st);
|
||||
if (ret < 0) {
|
||||
/* not found */
|
||||
size = 0;
|
||||
write_or_die(&size, 4);
|
||||
return;
|
||||
}
|
||||
size = get_size(path);
|
||||
write_or_die(&size, 4);
|
||||
check_size = copy_file(path);
|
||||
if (size != check_size)
|
||||
die("error in size of file '%s'", path);
|
||||
|
||||
}
|
||||
|
||||
static void read_ftrace_printk(void)
|
||||
{
|
||||
unsigned int size, check_size;
|
||||
const char *path;
|
||||
struct stat st;
|
||||
int ret;
|
||||
|
||||
path = get_tracing_file("printk_formats");
|
||||
ret = stat(path, &st);
|
||||
if (ret < 0) {
|
||||
/* not found */
|
||||
size = 0;
|
||||
write_or_die(&size, 4);
|
||||
return;
|
||||
}
|
||||
size = get_size(path);
|
||||
write_or_die(&size, 4);
|
||||
check_size = copy_file(path);
|
||||
if (size != check_size)
|
||||
die("error in size of file '%s'", path);
|
||||
|
||||
}
|
||||
|
||||
static struct tracepoint_path *
|
||||
get_tracepoints_path(struct perf_counter_attr *pattrs, int nb_counters)
|
||||
{
|
||||
struct tracepoint_path path, *ppath = &path;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < nb_counters; i++) {
|
||||
if (pattrs[i].type != PERF_TYPE_TRACEPOINT)
|
||||
continue;
|
||||
ppath->next = tracepoint_id_to_path(pattrs[i].config);
|
||||
if (!ppath->next)
|
||||
die("%s\n", "No memory to alloc tracepoints list");
|
||||
ppath = ppath->next;
|
||||
}
|
||||
|
||||
return path.next;
|
||||
}
|
||||
void read_tracing_data(struct perf_counter_attr *pattrs, int nb_counters)
|
||||
{
|
||||
char buf[BUFSIZ];
|
||||
struct tracepoint_path *tps;
|
||||
|
||||
output_fd = open(output_file, O_WRONLY | O_CREAT | O_TRUNC | O_LARGEFILE, 0644);
|
||||
if (output_fd < 0)
|
||||
die("creating file '%s'", output_file);
|
||||
|
||||
buf[0] = 23;
|
||||
buf[1] = 8;
|
||||
buf[2] = 68;
|
||||
memcpy(buf + 3, "tracing", 7);
|
||||
|
||||
write_or_die(buf, 10);
|
||||
|
||||
write_or_die(VERSION, strlen(VERSION) + 1);
|
||||
|
||||
/* save endian */
|
||||
if (bigendian())
|
||||
buf[0] = 1;
|
||||
else
|
||||
buf[0] = 0;
|
||||
|
||||
write_or_die(buf, 1);
|
||||
|
||||
/* save size of long */
|
||||
buf[0] = sizeof(long);
|
||||
write_or_die(buf, 1);
|
||||
|
||||
/* save page_size */
|
||||
page_size = getpagesize();
|
||||
write_or_die(&page_size, 4);
|
||||
|
||||
tps = get_tracepoints_path(pattrs, nb_counters);
|
||||
|
||||
read_header_files();
|
||||
read_ftrace_files(tps);
|
||||
read_event_files(tps);
|
||||
read_proc_kallsyms();
|
||||
read_ftrace_printk();
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,509 @@
|
|||
/*
|
||||
* Copyright (C) 2009, Steven Rostedt <srostedt@redhat.com>
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; version 2 of the License (not later!)
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
#define _LARGEFILE64_SOURCE
|
||||
|
||||
#include <dirent.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <getopt.h>
|
||||
#include <stdarg.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <sys/wait.h>
|
||||
#include <sys/mman.h>
|
||||
#include <pthread.h>
|
||||
#include <fcntl.h>
|
||||
#include <unistd.h>
|
||||
#include <ctype.h>
|
||||
#include <errno.h>
|
||||
|
||||
#include "../perf.h"
|
||||
#include "util.h"
|
||||
#include "trace-event.h"
|
||||
|
||||
static int input_fd;
|
||||
|
||||
static int read_page;
|
||||
|
||||
int file_bigendian;
|
||||
int host_bigendian;
|
||||
static int long_size;
|
||||
|
||||
static unsigned long page_size;
|
||||
|
||||
static int read_or_die(void *data, int size)
|
||||
{
|
||||
int r;
|
||||
|
||||
r = read(input_fd, data, size);
|
||||
if (r != size)
|
||||
die("reading input file (size expected=%d received=%d)",
|
||||
size, r);
|
||||
return r;
|
||||
}
|
||||
|
||||
static unsigned int read4(void)
|
||||
{
|
||||
unsigned int data;
|
||||
|
||||
read_or_die(&data, 4);
|
||||
return __data2host4(data);
|
||||
}
|
||||
|
||||
static unsigned long long read8(void)
|
||||
{
|
||||
unsigned long long data;
|
||||
|
||||
read_or_die(&data, 8);
|
||||
return __data2host8(data);
|
||||
}
|
||||
|
||||
static char *read_string(void)
|
||||
{
|
||||
char buf[BUFSIZ];
|
||||
char *str = NULL;
|
||||
int size = 0;
|
||||
int i;
|
||||
int r;
|
||||
|
||||
for (;;) {
|
||||
r = read(input_fd, buf, BUFSIZ);
|
||||
if (r < 0)
|
||||
die("reading input file");
|
||||
|
||||
if (!r)
|
||||
die("no data");
|
||||
|
||||
for (i = 0; i < r; i++) {
|
||||
if (!buf[i])
|
||||
break;
|
||||
}
|
||||
if (i < r)
|
||||
break;
|
||||
|
||||
if (str) {
|
||||
size += BUFSIZ;
|
||||
str = realloc(str, size);
|
||||
if (!str)
|
||||
die("malloc of size %d", size);
|
||||
memcpy(str + (size - BUFSIZ), buf, BUFSIZ);
|
||||
} else {
|
||||
size = BUFSIZ;
|
||||
str = malloc_or_die(size);
|
||||
memcpy(str, buf, size);
|
||||
}
|
||||
}
|
||||
|
||||
/* move the file descriptor to the end of the string */
|
||||
r = lseek(input_fd, -(r - (i+1)), SEEK_CUR);
|
||||
if (r < 0)
|
||||
die("lseek");
|
||||
|
||||
if (str) {
|
||||
size += i;
|
||||
str = realloc(str, size);
|
||||
if (!str)
|
||||
die("malloc of size %d", size);
|
||||
memcpy(str + (size - i), buf, i);
|
||||
} else {
|
||||
size = i;
|
||||
str = malloc_or_die(i);
|
||||
memcpy(str, buf, i);
|
||||
}
|
||||
|
||||
return str;
|
||||
}
|
||||
|
||||
static void read_proc_kallsyms(void)
|
||||
{
|
||||
unsigned int size;
|
||||
char *buf;
|
||||
|
||||
size = read4();
|
||||
if (!size)
|
||||
return;
|
||||
|
||||
buf = malloc_or_die(size);
|
||||
read_or_die(buf, size);
|
||||
|
||||
parse_proc_kallsyms(buf, size);
|
||||
|
||||
free(buf);
|
||||
}
|
||||
|
||||
static void read_ftrace_printk(void)
|
||||
{
|
||||
unsigned int size;
|
||||
char *buf;
|
||||
|
||||
size = read4();
|
||||
if (!size)
|
||||
return;
|
||||
|
||||
buf = malloc_or_die(size);
|
||||
read_or_die(buf, size);
|
||||
|
||||
parse_ftrace_printk(buf, size);
|
||||
|
||||
free(buf);
|
||||
}
|
||||
|
||||
static void read_header_files(void)
|
||||
{
|
||||
unsigned long long size;
|
||||
char *header_page;
|
||||
char *header_event;
|
||||
char buf[BUFSIZ];
|
||||
|
||||
read_or_die(buf, 12);
|
||||
|
||||
if (memcmp(buf, "header_page", 12) != 0)
|
||||
die("did not read header page");
|
||||
|
||||
size = read8();
|
||||
header_page = malloc_or_die(size);
|
||||
read_or_die(header_page, size);
|
||||
parse_header_page(header_page, size);
|
||||
free(header_page);
|
||||
|
||||
/*
|
||||
* The size field in the page is of type long,
|
||||
* use that instead, since it represents the kernel.
|
||||
*/
|
||||
long_size = header_page_size_size;
|
||||
|
||||
read_or_die(buf, 13);
|
||||
if (memcmp(buf, "header_event", 13) != 0)
|
||||
die("did not read header event");
|
||||
|
||||
size = read8();
|
||||
header_event = malloc_or_die(size);
|
||||
read_or_die(header_event, size);
|
||||
free(header_event);
|
||||
}
|
||||
|
||||
static void read_ftrace_file(unsigned long long size)
|
||||
{
|
||||
char *buf;
|
||||
|
||||
buf = malloc_or_die(size);
|
||||
read_or_die(buf, size);
|
||||
parse_ftrace_file(buf, size);
|
||||
free(buf);
|
||||
}
|
||||
|
||||
static void read_event_file(char *sys, unsigned long long size)
|
||||
{
|
||||
char *buf;
|
||||
|
||||
buf = malloc_or_die(size);
|
||||
read_or_die(buf, size);
|
||||
parse_event_file(buf, size, sys);
|
||||
free(buf);
|
||||
}
|
||||
|
||||
static void read_ftrace_files(void)
|
||||
{
|
||||
unsigned long long size;
|
||||
int count;
|
||||
int i;
|
||||
|
||||
count = read4();
|
||||
|
||||
for (i = 0; i < count; i++) {
|
||||
size = read8();
|
||||
read_ftrace_file(size);
|
||||
}
|
||||
}
|
||||
|
||||
static void read_event_files(void)
|
||||
{
|
||||
unsigned long long size;
|
||||
char *sys;
|
||||
int systems;
|
||||
int count;
|
||||
int i,x;
|
||||
|
||||
systems = read4();
|
||||
|
||||
for (i = 0; i < systems; i++) {
|
||||
sys = read_string();
|
||||
|
||||
count = read4();
|
||||
for (x=0; x < count; x++) {
|
||||
size = read8();
|
||||
read_event_file(sys, size);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
struct cpu_data {
|
||||
unsigned long long offset;
|
||||
unsigned long long size;
|
||||
unsigned long long timestamp;
|
||||
struct record *next;
|
||||
char *page;
|
||||
int cpu;
|
||||
int index;
|
||||
int page_size;
|
||||
};
|
||||
|
||||
static struct cpu_data *cpu_data;
|
||||
|
||||
static void update_cpu_data_index(int cpu)
|
||||
{
|
||||
cpu_data[cpu].offset += page_size;
|
||||
cpu_data[cpu].size -= page_size;
|
||||
cpu_data[cpu].index = 0;
|
||||
}
|
||||
|
||||
static void get_next_page(int cpu)
|
||||
{
|
||||
off64_t save_seek;
|
||||
off64_t ret;
|
||||
|
||||
if (!cpu_data[cpu].page)
|
||||
return;
|
||||
|
||||
if (read_page) {
|
||||
if (cpu_data[cpu].size <= page_size) {
|
||||
free(cpu_data[cpu].page);
|
||||
cpu_data[cpu].page = NULL;
|
||||
return;
|
||||
}
|
||||
|
||||
update_cpu_data_index(cpu);
|
||||
|
||||
/* other parts of the code may expect the pointer to not move */
|
||||
save_seek = lseek64(input_fd, 0, SEEK_CUR);
|
||||
|
||||
ret = lseek64(input_fd, cpu_data[cpu].offset, SEEK_SET);
|
||||
if (ret < 0)
|
||||
die("failed to lseek");
|
||||
ret = read(input_fd, cpu_data[cpu].page, page_size);
|
||||
if (ret < 0)
|
||||
die("failed to read page");
|
||||
|
||||
/* reset the file pointer back */
|
||||
lseek64(input_fd, save_seek, SEEK_SET);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
munmap(cpu_data[cpu].page, page_size);
|
||||
cpu_data[cpu].page = NULL;
|
||||
|
||||
if (cpu_data[cpu].size <= page_size)
|
||||
return;
|
||||
|
||||
update_cpu_data_index(cpu);
|
||||
|
||||
cpu_data[cpu].page = mmap(NULL, page_size, PROT_READ, MAP_PRIVATE,
|
||||
input_fd, cpu_data[cpu].offset);
|
||||
if (cpu_data[cpu].page == MAP_FAILED)
|
||||
die("failed to mmap cpu %d at offset 0x%llx",
|
||||
cpu, cpu_data[cpu].offset);
|
||||
}
|
||||
|
||||
static unsigned int type_len4host(unsigned int type_len_ts)
|
||||
{
|
||||
if (file_bigendian)
|
||||
return (type_len_ts >> 27) & ((1 << 5) - 1);
|
||||
else
|
||||
return type_len_ts & ((1 << 5) - 1);
|
||||
}
|
||||
|
||||
static unsigned int ts4host(unsigned int type_len_ts)
|
||||
{
|
||||
if (file_bigendian)
|
||||
return type_len_ts & ((1 << 27) - 1);
|
||||
else
|
||||
return type_len_ts >> 5;
|
||||
}
|
||||
|
||||
static int calc_index(void *ptr, int cpu)
|
||||
{
|
||||
return (unsigned long)ptr - (unsigned long)cpu_data[cpu].page;
|
||||
}
|
||||
|
||||
struct record *trace_peek_data(int cpu)
|
||||
{
|
||||
struct record *data;
|
||||
void *page = cpu_data[cpu].page;
|
||||
int idx = cpu_data[cpu].index;
|
||||
void *ptr = page + idx;
|
||||
unsigned long long extend;
|
||||
unsigned int type_len_ts;
|
||||
unsigned int type_len;
|
||||
unsigned int delta;
|
||||
unsigned int length = 0;
|
||||
|
||||
if (cpu_data[cpu].next)
|
||||
return cpu_data[cpu].next;
|
||||
|
||||
if (!page)
|
||||
return NULL;
|
||||
|
||||
if (!idx) {
|
||||
/* FIXME: handle header page */
|
||||
if (header_page_ts_size != 8)
|
||||
die("expected a long long type for timestamp");
|
||||
cpu_data[cpu].timestamp = data2host8(ptr);
|
||||
ptr += 8;
|
||||
switch (header_page_size_size) {
|
||||
case 4:
|
||||
cpu_data[cpu].page_size = data2host4(ptr);
|
||||
ptr += 4;
|
||||
break;
|
||||
case 8:
|
||||
cpu_data[cpu].page_size = data2host8(ptr);
|
||||
ptr += 8;
|
||||
break;
|
||||
default:
|
||||
die("bad long size");
|
||||
}
|
||||
ptr = cpu_data[cpu].page + header_page_data_offset;
|
||||
}
|
||||
|
||||
read_again:
|
||||
idx = calc_index(ptr, cpu);
|
||||
|
||||
if (idx >= cpu_data[cpu].page_size) {
|
||||
get_next_page(cpu);
|
||||
return trace_peek_data(cpu);
|
||||
}
|
||||
|
||||
type_len_ts = data2host4(ptr);
|
||||
ptr += 4;
|
||||
|
||||
type_len = type_len4host(type_len_ts);
|
||||
delta = ts4host(type_len_ts);
|
||||
|
||||
switch (type_len) {
|
||||
case RINGBUF_TYPE_PADDING:
|
||||
if (!delta)
|
||||
die("error, hit unexpected end of page");
|
||||
length = data2host4(ptr);
|
||||
ptr += 4;
|
||||
length *= 4;
|
||||
ptr += length;
|
||||
goto read_again;
|
||||
|
||||
case RINGBUF_TYPE_TIME_EXTEND:
|
||||
extend = data2host4(ptr);
|
||||
ptr += 4;
|
||||
extend <<= TS_SHIFT;
|
||||
extend += delta;
|
||||
cpu_data[cpu].timestamp += extend;
|
||||
goto read_again;
|
||||
|
||||
case RINGBUF_TYPE_TIME_STAMP:
|
||||
ptr += 12;
|
||||
break;
|
||||
case 0:
|
||||
length = data2host4(ptr);
|
||||
ptr += 4;
|
||||
die("here! length=%d", length);
|
||||
break;
|
||||
default:
|
||||
length = type_len * 4;
|
||||
break;
|
||||
}
|
||||
|
||||
cpu_data[cpu].timestamp += delta;
|
||||
|
||||
data = malloc_or_die(sizeof(*data));
|
||||
memset(data, 0, sizeof(*data));
|
||||
|
||||
data->ts = cpu_data[cpu].timestamp;
|
||||
data->size = length;
|
||||
data->data = ptr;
|
||||
ptr += length;
|
||||
|
||||
cpu_data[cpu].index = calc_index(ptr, cpu);
|
||||
cpu_data[cpu].next = data;
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
struct record *trace_read_data(int cpu)
|
||||
{
|
||||
struct record *data;
|
||||
|
||||
data = trace_peek_data(cpu);
|
||||
cpu_data[cpu].next = NULL;
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
void trace_report (void)
|
||||
{
|
||||
const char *input_file = "trace.info";
|
||||
char buf[BUFSIZ];
|
||||
char test[] = { 23, 8, 68 };
|
||||
char *version;
|
||||
int show_funcs = 0;
|
||||
int show_printk = 0;
|
||||
|
||||
input_fd = open(input_file, O_RDONLY);
|
||||
if (input_fd < 0)
|
||||
die("opening '%s'\n", input_file);
|
||||
|
||||
read_or_die(buf, 3);
|
||||
if (memcmp(buf, test, 3) != 0)
|
||||
die("not an trace data file");
|
||||
|
||||
read_or_die(buf, 7);
|
||||
if (memcmp(buf, "tracing", 7) != 0)
|
||||
die("not a trace file (missing tracing)");
|
||||
|
||||
version = read_string();
|
||||
printf("version = %s\n", version);
|
||||
free(version);
|
||||
|
||||
read_or_die(buf, 1);
|
||||
file_bigendian = buf[0];
|
||||
host_bigendian = bigendian();
|
||||
|
||||
read_or_die(buf, 1);
|
||||
long_size = buf[0];
|
||||
|
||||
page_size = read4();
|
||||
|
||||
read_header_files();
|
||||
|
||||
read_ftrace_files();
|
||||
read_event_files();
|
||||
read_proc_kallsyms();
|
||||
read_ftrace_printk();
|
||||
|
||||
if (show_funcs) {
|
||||
print_funcs();
|
||||
return;
|
||||
}
|
||||
if (show_printk) {
|
||||
print_printk();
|
||||
return;
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
|
@ -0,0 +1,239 @@
|
|||
#ifndef _TRACE_EVENTS_H
|
||||
#define _TRACE_EVENTS_H
|
||||
|
||||
#include "parse-events.h"
|
||||
|
||||
#define __unused __attribute__((unused))
|
||||
|
||||
|
||||
#ifndef PAGE_MASK
|
||||
#define PAGE_MASK (page_size - 1)
|
||||
#endif
|
||||
|
||||
enum {
|
||||
RINGBUF_TYPE_PADDING = 29,
|
||||
RINGBUF_TYPE_TIME_EXTEND = 30,
|
||||
RINGBUF_TYPE_TIME_STAMP = 31,
|
||||
};
|
||||
|
||||
#ifndef TS_SHIFT
|
||||
#define TS_SHIFT 27
|
||||
#endif
|
||||
|
||||
#define NSECS_PER_SEC 1000000000ULL
|
||||
#define NSECS_PER_USEC 1000ULL
|
||||
|
||||
enum format_flags {
|
||||
FIELD_IS_ARRAY = 1,
|
||||
FIELD_IS_POINTER = 2,
|
||||
};
|
||||
|
||||
struct format_field {
|
||||
struct format_field *next;
|
||||
char *type;
|
||||
char *name;
|
||||
int offset;
|
||||
int size;
|
||||
unsigned long flags;
|
||||
};
|
||||
|
||||
struct format {
|
||||
int nr_common;
|
||||
int nr_fields;
|
||||
struct format_field *common_fields;
|
||||
struct format_field *fields;
|
||||
};
|
||||
|
||||
struct print_arg_atom {
|
||||
char *atom;
|
||||
};
|
||||
|
||||
struct print_arg_string {
|
||||
char *string;
|
||||
};
|
||||
|
||||
struct print_arg_field {
|
||||
char *name;
|
||||
struct format_field *field;
|
||||
};
|
||||
|
||||
struct print_flag_sym {
|
||||
struct print_flag_sym *next;
|
||||
char *value;
|
||||
char *str;
|
||||
};
|
||||
|
||||
struct print_arg_typecast {
|
||||
char *type;
|
||||
struct print_arg *item;
|
||||
};
|
||||
|
||||
struct print_arg_flags {
|
||||
struct print_arg *field;
|
||||
char *delim;
|
||||
struct print_flag_sym *flags;
|
||||
};
|
||||
|
||||
struct print_arg_symbol {
|
||||
struct print_arg *field;
|
||||
struct print_flag_sym *symbols;
|
||||
};
|
||||
|
||||
struct print_arg;
|
||||
|
||||
struct print_arg_op {
|
||||
char *op;
|
||||
int prio;
|
||||
struct print_arg *left;
|
||||
struct print_arg *right;
|
||||
};
|
||||
|
||||
struct print_arg_func {
|
||||
char *name;
|
||||
struct print_arg *args;
|
||||
};
|
||||
|
||||
enum print_arg_type {
|
||||
PRINT_NULL,
|
||||
PRINT_ATOM,
|
||||
PRINT_FIELD,
|
||||
PRINT_FLAGS,
|
||||
PRINT_SYMBOL,
|
||||
PRINT_TYPE,
|
||||
PRINT_STRING,
|
||||
PRINT_OP,
|
||||
};
|
||||
|
||||
struct print_arg {
|
||||
struct print_arg *next;
|
||||
enum print_arg_type type;
|
||||
union {
|
||||
struct print_arg_atom atom;
|
||||
struct print_arg_field field;
|
||||
struct print_arg_typecast typecast;
|
||||
struct print_arg_flags flags;
|
||||
struct print_arg_symbol symbol;
|
||||
struct print_arg_func func;
|
||||
struct print_arg_string string;
|
||||
struct print_arg_op op;
|
||||
};
|
||||
};
|
||||
|
||||
struct print_fmt {
|
||||
char *format;
|
||||
struct print_arg *args;
|
||||
};
|
||||
|
||||
struct event {
|
||||
struct event *next;
|
||||
char *name;
|
||||
int id;
|
||||
int flags;
|
||||
struct format format;
|
||||
struct print_fmt print_fmt;
|
||||
};
|
||||
|
||||
enum {
|
||||
EVENT_FL_ISFTRACE = 1,
|
||||
EVENT_FL_ISPRINT = 2,
|
||||
EVENT_FL_ISBPRINT = 4,
|
||||
EVENT_FL_ISFUNC = 8,
|
||||
EVENT_FL_ISFUNCENT = 16,
|
||||
EVENT_FL_ISFUNCRET = 32,
|
||||
};
|
||||
|
||||
struct record {
|
||||
unsigned long long ts;
|
||||
int size;
|
||||
void *data;
|
||||
};
|
||||
|
||||
struct record *trace_peek_data(int cpu);
|
||||
struct record *trace_read_data(int cpu);
|
||||
|
||||
void parse_set_info(int nr_cpus, int long_sz);
|
||||
|
||||
void trace_report(void);
|
||||
|
||||
void *malloc_or_die(unsigned int size);
|
||||
|
||||
void parse_cmdlines(char *file, int size);
|
||||
void parse_proc_kallsyms(char *file, unsigned int size);
|
||||
void parse_ftrace_printk(char *file, unsigned int size);
|
||||
|
||||
void print_funcs(void);
|
||||
void print_printk(void);
|
||||
|
||||
int parse_ftrace_file(char *buf, unsigned long size);
|
||||
int parse_event_file(char *buf, unsigned long size, char *system);
|
||||
void print_event(int cpu, void *data, int size, unsigned long long nsecs,
|
||||
char *comm);
|
||||
|
||||
extern int file_bigendian;
|
||||
extern int host_bigendian;
|
||||
|
||||
int bigendian(void);
|
||||
|
||||
static inline unsigned short __data2host2(unsigned short data)
|
||||
{
|
||||
unsigned short swap;
|
||||
|
||||
if (host_bigendian == file_bigendian)
|
||||
return data;
|
||||
|
||||
swap = ((data & 0xffULL) << 8) |
|
||||
((data & (0xffULL << 8)) >> 8);
|
||||
|
||||
return swap;
|
||||
}
|
||||
|
||||
static inline unsigned int __data2host4(unsigned int data)
|
||||
{
|
||||
unsigned int swap;
|
||||
|
||||
if (host_bigendian == file_bigendian)
|
||||
return data;
|
||||
|
||||
swap = ((data & 0xffULL) << 24) |
|
||||
((data & (0xffULL << 8)) << 8) |
|
||||
((data & (0xffULL << 16)) >> 8) |
|
||||
((data & (0xffULL << 24)) >> 24);
|
||||
|
||||
return swap;
|
||||
}
|
||||
|
||||
static inline unsigned long long __data2host8(unsigned long long data)
|
||||
{
|
||||
unsigned long long swap;
|
||||
|
||||
if (host_bigendian == file_bigendian)
|
||||
return data;
|
||||
|
||||
swap = ((data & 0xffULL) << 56) |
|
||||
((data & (0xffULL << 8)) << 40) |
|
||||
((data & (0xffULL << 16)) << 24) |
|
||||
((data & (0xffULL << 24)) << 8) |
|
||||
((data & (0xffULL << 32)) >> 8) |
|
||||
((data & (0xffULL << 40)) >> 24) |
|
||||
((data & (0xffULL << 48)) >> 40) |
|
||||
((data & (0xffULL << 56)) >> 56);
|
||||
|
||||
return swap;
|
||||
}
|
||||
|
||||
#define data2host2(ptr) __data2host2(*(unsigned short *)ptr)
|
||||
#define data2host4(ptr) __data2host4(*(unsigned int *)ptr)
|
||||
#define data2host8(ptr) __data2host8(*(unsigned long long *)ptr)
|
||||
|
||||
extern int header_page_ts_offset;
|
||||
extern int header_page_ts_size;
|
||||
extern int header_page_size_offset;
|
||||
extern int header_page_size_size;
|
||||
extern int header_page_data_offset;
|
||||
extern int header_page_data_size;
|
||||
|
||||
int parse_header_page(char *buf, unsigned long size);
|
||||
|
||||
void read_tracing_data(struct perf_counter_attr *pattrs, int nb_counters);
|
||||
|
||||
#endif /* _TRACE_EVENTS_H */
|
||||
|
|
@ -307,6 +307,7 @@ static inline int has_extension(const char *filename, const char *ext)
|
|||
#undef isspace
|
||||
#undef isdigit
|
||||
#undef isalpha
|
||||
#undef isprint
|
||||
#undef isalnum
|
||||
#undef tolower
|
||||
#undef toupper
|
||||
|
|
|
|||
Loading…
Reference in New Issue