33b6ce99b5
This patch only enables symbol assignment if the configure test determined it's supported. Bootstrapped without regressions on sparc-sun-solaris2.11 (as and gas) and i386-pc-solaris2.11 (as and gas). 2023-11-23 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> libsanitizer: PR sanitizer/112563 * sanitizer_common/sanitizer_redefine_builtins.h: Check HAVE_AS_SYM_ASSIGN.
56 lines
2.7 KiB
C++
56 lines
2.7 KiB
C++
//===-- sanitizer_redefine_builtins.h ---------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Redefine builtin functions to use internal versions. This is needed where
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// compiler optimizations end up producing unwanted libcalls!
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//
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//===----------------------------------------------------------------------===//
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#ifndef SANITIZER_COMMON_NO_REDEFINE_BUILTINS
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# ifndef SANITIZER_REDEFINE_BUILTINS_H
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# define SANITIZER_REDEFINE_BUILTINS_H
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// The asm hack only works with GCC and Clang.
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# if !defined(_WIN32) && defined(HAVE_AS_SYM_ASSIGN)
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asm("memcpy = __sanitizer_internal_memcpy");
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asm("memmove = __sanitizer_internal_memmove");
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asm("memset = __sanitizer_internal_memset");
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# if defined(__cplusplus) && \
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!defined(SANITIZER_COMMON_REDEFINE_BUILTINS_IN_STD)
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// The builtins should not be redefined in source files that make use of C++
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// standard libraries, in particular where C++STL headers with inline functions
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// are used. The redefinition in such cases would lead to ODR violations.
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//
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// Try to break the build in common cases where builtins shouldn't be redefined.
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namespace std {
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class Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file {
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Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file(
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const Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file&) = delete;
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Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file& operator=(
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const Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file&) = delete;
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};
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using array = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
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using atomic = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
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using function = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
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using map = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
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using set = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
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using shared_ptr = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
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using string = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
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using unique_ptr = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
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using unordered_map = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
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using unordered_set = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
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using vector = Define_SANITIZER_COMMON_NO_REDEFINE_BUILTINS_in_cpp_file;
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} // namespace std
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# endif // __cpluplus
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# endif // !_WIN32 && HAVE_AS_SYM_ASSIGN
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# endif // SANITIZER_REDEFINE_BUILTINS_H
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#endif // SANITIZER_COMMON_NO_REDEFINE_BUILTINS
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