2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
209 lines
5.7 KiB
C++
209 lines
5.7 KiB
C++
//===- FuzzerDefs.h - Internal header for the Fuzzer ------------*- 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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// Basic definitions.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_FUZZER_DEFS_H
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#define LLVM_FUZZER_DEFS_H
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#include <cassert>
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#include <cstddef>
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#include <cstdint>
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#include <cstring>
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#include <string>
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#include <vector>
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#include <set>
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#include <memory>
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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_OPENBSD 0
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#define LIBFUZZER_WINDOWS 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_OPENBSD 0
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#define LIBFUZZER_WINDOWS 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_OPENBSD 0
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#define LIBFUZZER_WINDOWS 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_OPENBSD 0
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#define LIBFUZZER_WINDOWS 0
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#elif __OpenBSD__
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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_OPENBSD 1
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#define LIBFUZZER_WINDOWS 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_OPENBSD 0
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#define LIBFUZZER_WINDOWS 1
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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_OPENBSD 0
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#define LIBFUZZER_WINDOWS 0
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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_OPENBSD)
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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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namespace fuzzer {
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template <class T> T Min(T a, T b) { return a < b ? a : b; }
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template <class T> T Max(T a, T b) { return a > b ? a : b; }
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class Random;
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class Dictionary;
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class DictionaryEntry;
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class MutationDispatcher;
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struct FuzzingOptions;
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class InputCorpus;
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struct InputInfo;
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struct ExternalFunctions;
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// Global interface to functions that may or may not be available.
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extern ExternalFunctions *EF;
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// We are using a custom allocator to give a different symbol name to STL
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// containers in order to avoid ODR violations.
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template<typename T>
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class fuzzer_allocator: public std::allocator<T> {
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public:
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fuzzer_allocator() = default;
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template<class U>
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fuzzer_allocator(const fuzzer_allocator<U>&) {}
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template<class Other>
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struct rebind { typedef fuzzer_allocator<Other> other; };
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};
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template<typename T>
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using Vector = std::vector<T, fuzzer_allocator<T>>;
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template<typename T>
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using Set = std::set<T, std::less<T>, fuzzer_allocator<T>>;
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typedef Vector<uint8_t> Unit;
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typedef Vector<Unit> UnitVector;
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typedef int (*UserCallback)(const uint8_t *Data, size_t Size);
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int FuzzerDriver(int *argc, char ***argv, UserCallback Callback);
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uint8_t *ExtraCountersBegin();
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uint8_t *ExtraCountersEnd();
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void ClearExtraCounters();
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extern bool RunningUserCallback;
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} // namespace fuzzer
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#endif // LLVM_FUZZER_DEFS_H
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