llvm-project/compiler-rt/lib/ubsan/ubsan_init_standalone.cc

//===-- ubsan_init_standalone.cc ------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Initialization of standalone UBSan runtime.
//
//===----------------------------------------------------------------------===//

#include "ubsan_platform.h"
#if !CAN_SANITIZE_UB
# error "UBSan is not supported on this platform!"
#endif

#include "sanitizer_common/sanitizer_internal_defs.h"
#include "ubsan_init.h"

#if SANITIZER_CAN_USE_PREINIT_ARRAY
__attribute__((section(".preinit_array"), used))
void (*__local_ubsan_preinit)(void) = __ubsan::InitAsStandalone;
#else
// Use a dynamic initializer.
class UbsanStandaloneInitializer {
 public:
  UbsanStandaloneInitializer() {
    __ubsan::InitAsStandalone();
  }
};
static UbsanStandaloneInitializer ubsan_standalone_initializer;
#endif  // SANITIZER_CAN_USE_PREINIT_ARRAY