Pileus Git - ~andy/linux/blob - tools/perf/util/process_events.c

   1 #include "process_events.h"
   2
   3 char    *cwd;
   4 int     cwdlen;
   5
   6 int
   7 process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
   8 {
   9         struct map *map = map__new(&event->mmap, MAP__FUNCTION, cwd, cwdlen);
  10         struct thread *thread = threads__findnew(event->mmap.pid);
  11
  12         dump_printf("%p [%p]: PERF_RECORD_MMAP %d/%d: [%p(%p) @ %p]: %s\n",
  13                 (void *)(offset + head),
  14                 (void *)(long)(event->header.size),
  15                 event->mmap.pid,
  16                 event->mmap.tid,
  17                 (void *)(long)event->mmap.start,
  18                 (void *)(long)event->mmap.len,
  19                 (void *)(long)event->mmap.pgoff,
  20                 event->mmap.filename);
  21
  22         if (thread == NULL || map == NULL) {
  23                 dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n");
  24                 return 0;
  25         }
  26
  27         thread__insert_map(thread, map);
  28         total_mmap++;
  29
  30         return 0;
  31 }
  32
  33 int
  34 process_task_event(event_t *event, unsigned long offset, unsigned long head)
  35 {
  36         struct thread *thread = threads__findnew(event->fork.pid);
  37         struct thread *parent = threads__findnew(event->fork.ppid);
  38
  39         dump_printf("%p [%p]: PERF_RECORD_%s: (%d:%d):(%d:%d)\n",
  40                 (void *)(offset + head),
  41                 (void *)(long)(event->header.size),
  42                 event->header.type == PERF_RECORD_FORK ? "FORK" : "EXIT",
  43                 event->fork.pid, event->fork.tid,
  44                 event->fork.ppid, event->fork.ptid);
  45
  46         /*
  47          * A thread clone will have the same PID for both
  48          * parent and child.
  49          */
  50         if (thread == parent)
  51                 return 0;
  52
  53         if (event->header.type == PERF_RECORD_EXIT)
  54                 return 0;
  55
  56         if (!thread || !parent || thread__fork(thread, parent)) {
  57                 dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n");
  58                 return -1;
  59         }
  60         total_fork++;
  61
  62         return 0;
  63 }
  64