contrib/compiler-rt/lib/ubsan/ubsan_init_standalone.cc

   1 //===-- ubsan_init_standalone.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 // Initialization of standalone UBSan runtime.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "ubsan_platform.h"
  15 #if !CAN_SANITIZE_UB
  16 # error "UBSan is not supported on this platform!"
  17 #endif
  18
  19 #include "sanitizer_common/sanitizer_internal_defs.h"
  20 #include "ubsan_init.h"
  21
  22 #if SANITIZER_CAN_USE_PREINIT_ARRAY
  23 __attribute__((section(".preinit_array"), used))
  24 void (*__local_ubsan_preinit)(void) = __ubsan::InitAsStandalone;
  25 #else
  26 // Use a dynamic initializer.
  27 class UbsanStandaloneInitializer {
  28  public:
  29   UbsanStandaloneInitializer() {
  30     __ubsan::InitAsStandalone();
  31   }
  32 };
  33 static UbsanStandaloneInitializer ubsan_standalone_initializer;
  34 #endif  // SANITIZER_CAN_USE_PREINIT_ARRAY
  35