src/compiler-rt/lib/tsan/rtl/tsan_preinit.cc

   1 //===-- tsan_preinit.cc ---------------------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file is a part of ThreadSanitizer.
  11 //
  12 // Call __tsan_init at the very early stage of process startup.
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "sanitizer_common/sanitizer_internal_defs.h"
  16 #include "tsan_interface.h"
  17
  18 #if SANITIZER_CAN_USE_PREINIT_ARRAY
  19
  20 // The symbol is called __local_tsan_preinit, because it's not intended to be
  21 // exported.
  22 // This code linked into the main executable when -fsanitize=thread is in
  23 // the link flags. It can only use exported interface functions.
  24 __attribute__((section(".preinit_array"), used))
  25 void (*__local_tsan_preinit)(void) = __tsan_init;
  26
  27 #endif