libsanitizer/ubsan/ubsan_init_standalone.cc

   1 //===-- ubsan_init_standalone.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 // Initialization of standalone UBSan runtime.
   9 //
  10 //===----------------------------------------------------------------------===//
  11
  12 #include "ubsan_platform.h"
  13 #if !CAN_SANITIZE_UB
  14 # error "UBSan is not supported on this platform!"
  15 #endif
  16
  17 #include "sanitizer_common/sanitizer_internal_defs.h"
  18 #include "ubsan_init.h"
  19
  20 #if SANITIZER_CAN_USE_PREINIT_ARRAY
  21 __attribute__((section(".preinit_array"), used))
  22 void (*__local_ubsan_preinit)(void) = __ubsan::InitAsStandalone;
  23 #else
  24 // Use a dynamic initializer.
  25 class UbsanStandaloneInitializer {
  26  public:
  27   UbsanStandaloneInitializer() {
  28     __ubsan::InitAsStandalone();
  29   }
  30 };
  31 static UbsanStandaloneInitializer ubsan_standalone_initializer;
  32 #endif  // SANITIZER_CAN_USE_PREINIT_ARRAY