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- //===-- sanitizer_redefine_builtins.h ---------------------------*- C++ -*-===//
- //
- // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
- // See https://llvm.org/LICENSE.txt for license information.
- // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
- //
- //===----------------------------------------------------------------------===//
- //
- // Redefine builtin functions to use internal versions. This is needed where
- // compiler optimizations end up producing unwanted libcalls!
- //
- //===----------------------------------------------------------------------===//
- #ifndef SANITIZER_COMMON_NO_REDEFINE_BUILTINS
- # ifndef SANITIZER_REDEFINE_BUILTINS_H
- # define SANITIZER_REDEFINE_BUILTINS_H
- // The asm hack only works with GCC and Clang.
- # if !defined(_WIN32)
- asm("memcpy = __sanitizer_internal_memcpy");
- asm("memmove = __sanitizer_internal_memmove");
- asm("memset = __sanitizer_internal_memset");
- # if defined(__cplusplus) && \
- !defined(SANITIZER_COMMON_REDEFINE_BUILTINS_IN_STD)
- // The builtins should not be redefined in source files that make use of C++
- // standard libraries, in particular where C++STL headers with inline functions
- // are used. The redefinition in such cases would lead to ODR violations.
- //
- // Try to break the build in common cases where builtins shouldn't be redefined.
- namespace std {
- class Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file {
- Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file(
- const Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file&) = delete;
- Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file& operator=(
- const Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file&) = delete;
- };
- using array = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
- using atomic = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
- using function = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
- using map = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
- using set = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
- using shared_ptr = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
- using string = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
- using unique_ptr = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
- using unordered_map = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
- using unordered_set = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
- using vector = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
- } // namespace std
- # endif // __cpluplus
- # endif // !_WIN32
- # endif // SANITIZER_REDEFINE_BUILTINS_H
- #endif // SANITIZER_COMMON_NO_REDEFINE_BUILTINS
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