libsanitizer/hwasan/hwasan_preinit.cpp

   1 //===-- hwasan_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 HWAddressSanitizer, an address sanity checker.
  10 //
  11 // Call __hwasan_init at the very early stage of process startup.
  12 //===----------------------------------------------------------------------===//
  13 #include "hwasan_interface_internal.h"
  14 #include "sanitizer_common/sanitizer_internal_defs.h"
  15
  16 #if SANITIZER_CAN_USE_PREINIT_ARRAY
  17 // The symbol is called __local_hwasan_preinit, because it's not intended to
  18 // be exported.
  19 // This code linked into the main executable when -fsanitize=hwaddress is in
  20 // the link flags. It can only use exported interface functions.
  21 __attribute__((section(".preinit_array"), used)) static void (
  22     *__local_hwasan_preinit)(void) = __hwasan_init;
  23 #endif