148 lines
4.2 KiB
C
148 lines
4.2 KiB
C
//===-- FuzzerPlatform.h --------------------------------------------------===//
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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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// Common platform macros.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_FUZZER_PLATFORM_H
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#define LLVM_FUZZER_PLATFORM_H
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// Platform detection.
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#ifdef __linux__
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#define LIBFUZZER_APPLE 0
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#define LIBFUZZER_FUCHSIA 0
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#define LIBFUZZER_LINUX 1
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#define LIBFUZZER_NETBSD 0
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#define LIBFUZZER_FREEBSD 0
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#define LIBFUZZER_WINDOWS 0
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#define LIBFUZZER_EMSCRIPTEN 0
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#elif __APPLE__
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#define LIBFUZZER_APPLE 1
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#define LIBFUZZER_FUCHSIA 0
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#define LIBFUZZER_LINUX 0
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#define LIBFUZZER_NETBSD 0
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#define LIBFUZZER_FREEBSD 0
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#define LIBFUZZER_WINDOWS 0
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#define LIBFUZZER_EMSCRIPTEN 0
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#elif __NetBSD__
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#define LIBFUZZER_APPLE 0
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#define LIBFUZZER_FUCHSIA 0
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#define LIBFUZZER_LINUX 0
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#define LIBFUZZER_NETBSD 1
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#define LIBFUZZER_FREEBSD 0
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#define LIBFUZZER_WINDOWS 0
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#define LIBFUZZER_EMSCRIPTEN 0
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#elif __FreeBSD__
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#define LIBFUZZER_APPLE 0
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#define LIBFUZZER_FUCHSIA 0
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#define LIBFUZZER_LINUX 0
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#define LIBFUZZER_NETBSD 0
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#define LIBFUZZER_FREEBSD 1
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#define LIBFUZZER_WINDOWS 0
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#define LIBFUZZER_EMSCRIPTEN 0
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#elif _WIN32
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#define LIBFUZZER_APPLE 0
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#define LIBFUZZER_FUCHSIA 0
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#define LIBFUZZER_LINUX 0
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#define LIBFUZZER_NETBSD 0
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#define LIBFUZZER_FREEBSD 0
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#define LIBFUZZER_WINDOWS 1
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#define LIBFUZZER_EMSCRIPTEN 0
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#elif __Fuchsia__
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#define LIBFUZZER_APPLE 0
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#define LIBFUZZER_FUCHSIA 1
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#define LIBFUZZER_LINUX 0
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#define LIBFUZZER_NETBSD 0
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#define LIBFUZZER_FREEBSD 0
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#define LIBFUZZER_WINDOWS 0
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#define LIBFUZZER_EMSCRIPTEN 0
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#elif __EMSCRIPTEN__
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#define LIBFUZZER_APPLE 0
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#define LIBFUZZER_FUCHSIA 0
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#define LIBFUZZER_LINUX 0
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#define LIBFUZZER_NETBSD 0
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#define LIBFUZZER_FREEBSD 0
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#define LIBFUZZER_WINDOWS 0
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#define LIBFUZZER_EMSCRIPTEN 1
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#else
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#error "Support for your platform has not been implemented"
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#endif
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#if defined(_MSC_VER) && !defined(__clang__)
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// MSVC compiler is being used.
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#define LIBFUZZER_MSVC 1
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#else
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#define LIBFUZZER_MSVC 0
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#endif
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#ifndef __has_attribute
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#define __has_attribute(x) 0
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#endif
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#define LIBFUZZER_POSIX \
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(LIBFUZZER_APPLE || LIBFUZZER_LINUX || LIBFUZZER_NETBSD || \
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LIBFUZZER_FREEBSD || LIBFUZZER_EMSCRIPTEN)
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#ifdef __x86_64
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#if __has_attribute(target)
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#define ATTRIBUTE_TARGET_POPCNT __attribute__((target("popcnt")))
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#else
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#define ATTRIBUTE_TARGET_POPCNT
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#endif
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#else
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#define ATTRIBUTE_TARGET_POPCNT
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#endif
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#ifdef __clang__ // avoid gcc warning.
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#if __has_attribute(no_sanitize)
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#define ATTRIBUTE_NO_SANITIZE_MEMORY __attribute__((no_sanitize("memory")))
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#else
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#define ATTRIBUTE_NO_SANITIZE_MEMORY
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#endif
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#define ALWAYS_INLINE __attribute__((always_inline))
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#else
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#define ATTRIBUTE_NO_SANITIZE_MEMORY
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#define ALWAYS_INLINE
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#endif // __clang__
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#if LIBFUZZER_WINDOWS
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#define ATTRIBUTE_NO_SANITIZE_ADDRESS
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#else
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#define ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address))
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#endif
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#if LIBFUZZER_WINDOWS
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#define ATTRIBUTE_ALIGNED(X) __declspec(align(X))
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#define ATTRIBUTE_INTERFACE __declspec(dllexport)
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// This is used for __sancov_lowest_stack which is needed for
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// -fsanitize-coverage=stack-depth. That feature is not yet available on
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// Windows, so make the symbol static to avoid linking errors.
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#define ATTRIBUTES_INTERFACE_TLS_INITIAL_EXEC static
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#define ATTRIBUTE_NOINLINE __declspec(noinline)
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#else
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#define ATTRIBUTE_ALIGNED(X) __attribute__((aligned(X)))
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#define ATTRIBUTE_INTERFACE __attribute__((visibility("default")))
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#define ATTRIBUTES_INTERFACE_TLS_INITIAL_EXEC \
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ATTRIBUTE_INTERFACE __attribute__((tls_model("initial-exec"))) thread_local
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#define ATTRIBUTE_NOINLINE __attribute__((noinline))
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#endif
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#if defined(__has_feature)
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#if __has_feature(address_sanitizer)
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#define ATTRIBUTE_NO_SANITIZE_ALL ATTRIBUTE_NO_SANITIZE_ADDRESS
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#elif __has_feature(memory_sanitizer)
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#define ATTRIBUTE_NO_SANITIZE_ALL ATTRIBUTE_NO_SANITIZE_MEMORY
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#else
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#define ATTRIBUTE_NO_SANITIZE_ALL
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#endif
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#else
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#define ATTRIBUTE_NO_SANITIZE_ALL
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#endif
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#endif // LLVM_FUZZER_PLATFORM_H
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