1//===- FuzzerExtFunctions.def - External functions --------------*- C++ -* ===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8// This defines the external function pointers that 9// ``fuzzer::ExternalFunctions`` should contain and try to initialize. The 10// EXT_FUNC macro must be defined at the point of inclusion. The signature of 11// the macro is: 12// 13// EXT_FUNC(<name>, <return_type>, <function_signature>, <warn_if_missing>) 14//===----------------------------------------------------------------------===// 15 16// Optional user functions 17EXT_FUNC(LLVMFuzzerInitialize, int, (int *argc, char ***argv), false); 18EXT_FUNC(LLVMFuzzerCustomMutator, size_t, 19 (uint8_t *Data, size_t Size, size_t MaxSize, unsigned int Seed), 20 false); 21EXT_FUNC(LLVMFuzzerCustomCrossOver, size_t, 22 (const uint8_t *Data1, size_t Size1, 23 const uint8_t *Data2, size_t Size2, 24 uint8_t *Out, size_t MaxOutSize, unsigned int Seed), 25 false); 26 27// Sanitizer functions 28EXT_FUNC(__lsan_enable, void, (), false); 29EXT_FUNC(__lsan_disable, void, (), false); 30EXT_FUNC(__lsan_do_recoverable_leak_check, int, (), false); 31EXT_FUNC(__sanitizer_acquire_crash_state, int, (), true); 32EXT_FUNC(__sanitizer_install_malloc_and_free_hooks, int, 33 (void (*malloc_hook)(const volatile void *, size_t), 34 void (*free_hook)(const volatile void *)), 35 false); 36EXT_FUNC(__sanitizer_log_write, void, (const char *buf, size_t len), false); 37EXT_FUNC(__sanitizer_purge_allocator, void, (), false); 38EXT_FUNC(__sanitizer_print_memory_profile, void, (size_t, size_t), false); 39EXT_FUNC(__sanitizer_print_stack_trace, void, (), true); 40EXT_FUNC(__sanitizer_symbolize_pc, void, 41 (void *, const char *fmt, char *out_buf, size_t out_buf_size), false); 42EXT_FUNC(__sanitizer_get_module_and_offset_for_pc, int, 43 (void *pc, char *module_path, 44 size_t module_path_len,void **pc_offset), false); 45EXT_FUNC(__sanitizer_set_death_callback, void, (void (*)(void)), true); 46EXT_FUNC(__sanitizer_set_report_fd, void, (void*), false); 47EXT_FUNC(__msan_scoped_disable_interceptor_checks, void, (), false); 48EXT_FUNC(__msan_scoped_enable_interceptor_checks, void, (), false); 49EXT_FUNC(__msan_unpoison, void, (const volatile void *, size_t size), false); 50EXT_FUNC(__msan_unpoison_param, void, (size_t n), false); 51