libsanitizer/tsan/tsan_preinit.cc

   1 //===-- tsan_preinit.cc ---------------------------------------------------===//
   2 //
   3 // This file is distributed under the University of Illinois Open Source
   4 // License. See LICENSE.TXT for details.
   5 //
   6 //===----------------------------------------------------------------------===//
   7 //
   8 // This file is a part of ThreadSanitizer.
   9 //
  10 // Call __tsan_init at the very early stage of process startup.
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "sanitizer_common/sanitizer_internal_defs.h"
  14 #include "tsan_interface.h"
  15
  16 #if SANITIZER_CAN_USE_PREINIT_ARRAY
  17
  18 // The symbol is called __local_tsan_preinit, because it's not intended to be
  19 // exported.
  20 // This code linked into the main executable when -fsanitize=thread is in
  21 // the link flags. It can only use exported interface functions.
  22 __attribute__((section(".preinit_array"), used))
  23 void (*__local_tsan_preinit)(void) = __tsan_init;
  24
  25 #endif