226866e115
Summary: This patch separates platform related macros in lib/fuzzer/FuzzerDefs.h into lib/fuzzer/FuzzerPlatform.h, and use FuzzerPlatform.h where necessary. This separation helps when compiling libFuzzer's interceptor module (under review); an unnecessary include of standard headers (such as string.h) may produce conflicts/ambiguation with the interceptor's declarations/definitions of library functions, which complicates interceptor implementation. Reviewers: morehouse, hctim Reviewed By: morehouse Subscribers: krytarowski, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D83805
36 lines
1.2 KiB
C++
36 lines
1.2 KiB
C++
//===- FuzzerBuiltins.h - Internal header for builtins ----------*- 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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// Wrapper functions and marcos around builtin functions.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_FUZZER_BUILTINS_H
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#define LLVM_FUZZER_BUILTINS_H
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#include "FuzzerPlatform.h"
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#if !LIBFUZZER_MSVC
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#include <cstdint>
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#define GET_CALLER_PC() __builtin_return_address(0)
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namespace fuzzer {
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inline uint8_t Bswap(uint8_t x) { return x; }
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inline uint16_t Bswap(uint16_t x) { return __builtin_bswap16(x); }
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inline uint32_t Bswap(uint32_t x) { return __builtin_bswap32(x); }
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inline uint64_t Bswap(uint64_t x) { return __builtin_bswap64(x); }
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inline uint32_t Clzll(unsigned long long X) { return __builtin_clzll(X); }
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inline uint32_t Clz(unsigned long long X) { return __builtin_clz(X); }
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inline int Popcountll(unsigned long long X) { return __builtin_popcountll(X); }
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} // namespace fuzzer
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#endif // !LIBFUZZER_MSVC
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#endif // LLVM_FUZZER_BUILTINS_H
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