libsanitizer/asan/asan_preinit.cpp

   1 //===-- asan_preinit.cpp --------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file is a part of AddressSanitizer, an address sanity checker.
  10 //
  11 // Call __asan_init at the very early stage of process startup.
  12 //===----------------------------------------------------------------------===//
  13 #include "asan_internal.h"
  14
  15 using namespace __asan;
  16
  17 #if SANITIZER_CAN_USE_PREINIT_ARRAY
  18   // The symbol is called __local_asan_preinit, because it's not intended to be
  19   // exported.
  20   // This code linked into the main executable when -fsanitize=address is in
  21   // the link flags. It can only use exported interface functions.
  22   __attribute__((section(".preinit_array"), used))
  23   void (*__local_asan_preinit)(void) = __asan_init;
  24 #endif