tools/perf/util/build-id.c

   1 /*
   2  * build-id.c
   3  *
   4  * build-id support
   5  *
   6  * Copyright (C) 2009, 2010 Red Hat Inc.
   7  * Copyright (C) 2009, 2010 Arnaldo Carvalho de Melo <acme@redhat.com>
   8  */
   9 #include "build-id.h"
  10 #include "event.h"
  11 #include "symbol.h"
  12 #include <linux/kernel.h>
  13
  14 static int build_id__mark_dso_hit(event_t *event, struct perf_session *session)
  15 {
  16         struct addr_location al;
  17         u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
  18         struct thread *thread = perf_session__findnew(session, event->ip.pid);
  19
  20         if (thread == NULL) {
  21                 pr_err("problem processing %d event, skipping it.\n",
  22                         event->header.type);
  23                 return -1;
  24         }
  25
  26         thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION,
  27                               event->ip.pid, event->ip.ip, &al);
  28
  29         if (al.map != NULL)
  30                 al.map->dso->hit = 1;
  31
  32         return 0;
  33 }
  34
  35 struct perf_event_ops build_id__mark_dso_hit_ops = {
  36         .sample = build_id__mark_dso_hit,
  37         .mmap   = event__process_mmap,
  38         .fork   = event__process_task,
  39 };