FuzzerPlatform.h - mozsearch

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//===-- FuzzerPlatform.h --------------------------------------------------===//

//

// 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

//

//===----------------------------------------------------------------------===//

// Common platform macros.

//===----------------------------------------------------------------------===//

#ifndef LLVM_FUZZER_PLATFORM_H

#define LLVM_FUZZER_PLATFORM_H

// Platform detection.

#ifdef __linux__

#define LIBFUZZER_APPLE 0

#define LIBFUZZER_FUCHSIA 0

#define LIBFUZZER_LINUX 1

#define LIBFUZZER_NETBSD 0

#define LIBFUZZER_FREEBSD 0

#define LIBFUZZER_OPENBSD 0

#define LIBFUZZER_WINDOWS 0

#define LIBFUZZER_EMSCRIPTEN 0

#elif __APPLE__

#define LIBFUZZER_APPLE 1

#define LIBFUZZER_FUCHSIA 0

#define LIBFUZZER_LINUX 0

#define LIBFUZZER_NETBSD 0

#define LIBFUZZER_FREEBSD 0

#define LIBFUZZER_OPENBSD 0

#define LIBFUZZER_WINDOWS 0

#define LIBFUZZER_EMSCRIPTEN 0

#elif __NetBSD__

#define LIBFUZZER_APPLE 0

#define LIBFUZZER_FUCHSIA 0

#define LIBFUZZER_LINUX 0

#define LIBFUZZER_NETBSD 1

#define LIBFUZZER_FREEBSD 0

#define LIBFUZZER_OPENBSD 0

#define LIBFUZZER_WINDOWS 0

#define LIBFUZZER_EMSCRIPTEN 0

#elif __FreeBSD__

#define LIBFUZZER_APPLE 0

#define LIBFUZZER_FUCHSIA 0

#define LIBFUZZER_LINUX 0

#define LIBFUZZER_NETBSD 0

#define LIBFUZZER_FREEBSD 1

#define LIBFUZZER_OPENBSD 0

#define LIBFUZZER_WINDOWS 0

#define LIBFUZZER_EMSCRIPTEN 0

#elif __OpenBSD__

#define LIBFUZZER_APPLE 0

#define LIBFUZZER_FUCHSIA 0

#define LIBFUZZER_LINUX 0

#define LIBFUZZER_NETBSD 0

#define LIBFUZZER_FREEBSD 0

#define LIBFUZZER_OPENBSD 1

#define LIBFUZZER_WINDOWS 0

#define LIBFUZZER_EMSCRIPTEN 0

#elif _WIN32

#define LIBFUZZER_APPLE 0

#define LIBFUZZER_FUCHSIA 0

#define LIBFUZZER_LINUX 0

#define LIBFUZZER_NETBSD 0

#define LIBFUZZER_FREEBSD 0

#define LIBFUZZER_OPENBSD 0

#define LIBFUZZER_WINDOWS 1

#define LIBFUZZER_EMSCRIPTEN 0

#elif __Fuchsia__

#define LIBFUZZER_APPLE 0

#define LIBFUZZER_FUCHSIA 1

#define LIBFUZZER_LINUX 0

#define LIBFUZZER_NETBSD 0

#define LIBFUZZER_FREEBSD 0

#define LIBFUZZER_OPENBSD 0

#define LIBFUZZER_WINDOWS 0

#define LIBFUZZER_EMSCRIPTEN 0

#elif __EMSCRIPTEN__

#define LIBFUZZER_APPLE 0

#define LIBFUZZER_FUCHSIA 0

#define LIBFUZZER_LINUX 0

#define LIBFUZZER_NETBSD 0

#define LIBFUZZER_FREEBSD 0

#define LIBFUZZER_OPENBSD 0

#define LIBFUZZER_WINDOWS 0

#define LIBFUZZER_EMSCRIPTEN 1

#else

#error "Support for your platform has not been implemented"

#endif

#if defined(_MSC_VER) && !defined(__clang__)

// MSVC compiler is being used.

#define LIBFUZZER_MSVC 1

#else

#define LIBFUZZER_MSVC 0

#endif

#ifndef __has_attribute

#define __has_attribute(x) 0

#endif

#define LIBFUZZER_POSIX                                                        \

  (LIBFUZZER_APPLE || LIBFUZZER_LINUX || LIBFUZZER_NETBSD ||                   \

   LIBFUZZER_FREEBSD || LIBFUZZER_OPENBSD || LIBFUZZER_EMSCRIPTEN)

#ifdef __x86_64

#if __has_attribute(target)

#define ATTRIBUTE_TARGET_POPCNT __attribute__((target("popcnt")))

#else

#define ATTRIBUTE_TARGET_POPCNT

#endif

#else

#define ATTRIBUTE_TARGET_POPCNT

#endif

#ifdef __clang__ // avoid gcc warning.

#if __has_attribute(no_sanitize)

#define ATTRIBUTE_NO_SANITIZE_MEMORY __attribute__((no_sanitize("memory")))

#else

#define ATTRIBUTE_NO_SANITIZE_MEMORY

#endif

#define ALWAYS_INLINE __attribute__((always_inline))

#else

#define ATTRIBUTE_NO_SANITIZE_MEMORY

#define ALWAYS_INLINE

#endif // __clang__

#if LIBFUZZER_WINDOWS

#define ATTRIBUTE_NO_SANITIZE_ADDRESS

#else

#define ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address))

#endif

#if LIBFUZZER_WINDOWS

#define ATTRIBUTE_ALIGNED(X) __declspec(align(X))

#define ATTRIBUTE_INTERFACE __declspec(dllexport)

// This is used for __sancov_lowest_stack which is needed for

// -fsanitize-coverage=stack-depth. That feature is not yet available on

// Windows, so make the symbol static to avoid linking errors.

#define ATTRIBUTES_INTERFACE_TLS_INITIAL_EXEC static

#define ATTRIBUTE_NOINLINE __declspec(noinline)

#else

#define ATTRIBUTE_ALIGNED(X) __attribute__((aligned(X)))

#define ATTRIBUTE_INTERFACE __attribute__((visibility("default")))

#define ATTRIBUTES_INTERFACE_TLS_INITIAL_EXEC                                  \

  ATTRIBUTE_INTERFACE __attribute__((tls_model("initial-exec"))) thread_local

#define ATTRIBUTE_NOINLINE __attribute__((noinline))

#endif

#if defined(__has_feature)

#if __has_feature(address_sanitizer)

#define ATTRIBUTE_NO_SANITIZE_ALL ATTRIBUTE_NO_SANITIZE_ADDRESS

#elif __has_feature(memory_sanitizer)

#define ATTRIBUTE_NO_SANITIZE_ALL ATTRIBUTE_NO_SANITIZE_MEMORY

#else

#define ATTRIBUTE_NO_SANITIZE_ALL

#endif

#else

#define ATTRIBUTE_NO_SANITIZE_ALL

#endif

#endif // LLVM_FUZZER_PLATFORM_H