1*3cab2bb3Spatrick//===- FuzzerExtFunctions.def - External functions --------------*- C++ -* ===// 2*3cab2bb3Spatrick// 3*3cab2bb3Spatrick// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*3cab2bb3Spatrick// See https://llvm.org/LICENSE.txt for license information. 5*3cab2bb3Spatrick// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*3cab2bb3Spatrick// 7*3cab2bb3Spatrick//===----------------------------------------------------------------------===// 8*3cab2bb3Spatrick// This defines the external function pointers that 9*3cab2bb3Spatrick// ``fuzzer::ExternalFunctions`` should contain and try to initialize. The 10*3cab2bb3Spatrick// EXT_FUNC macro must be defined at the point of inclusion. The signature of 11*3cab2bb3Spatrick// the macro is: 12*3cab2bb3Spatrick// 13*3cab2bb3Spatrick// EXT_FUNC(<name>, <return_type>, <function_signature>, <warn_if_missing>) 14*3cab2bb3Spatrick//===----------------------------------------------------------------------===// 15*3cab2bb3Spatrick 16*3cab2bb3Spatrick// Optional user functions 17*3cab2bb3SpatrickEXT_FUNC(LLVMFuzzerInitialize, int, (int *argc, char ***argv), false); 18*3cab2bb3SpatrickEXT_FUNC(LLVMFuzzerCustomMutator, size_t, 19*3cab2bb3Spatrick (uint8_t *Data, size_t Size, size_t MaxSize, unsigned int Seed), 20*3cab2bb3Spatrick false); 21*3cab2bb3SpatrickEXT_FUNC(LLVMFuzzerCustomCrossOver, size_t, 22*3cab2bb3Spatrick (const uint8_t *Data1, size_t Size1, 23*3cab2bb3Spatrick const uint8_t *Data2, size_t Size2, 24*3cab2bb3Spatrick uint8_t *Out, size_t MaxOutSize, unsigned int Seed), 25*3cab2bb3Spatrick false); 26*3cab2bb3Spatrick 27*3cab2bb3Spatrick// Sanitizer functions 28*3cab2bb3SpatrickEXT_FUNC(__lsan_enable, void, (), false); 29*3cab2bb3SpatrickEXT_FUNC(__lsan_disable, void, (), false); 30*3cab2bb3SpatrickEXT_FUNC(__lsan_do_recoverable_leak_check, int, (), false); 31*3cab2bb3SpatrickEXT_FUNC(__sanitizer_acquire_crash_state, int, (), true); 32*3cab2bb3SpatrickEXT_FUNC(__sanitizer_install_malloc_and_free_hooks, int, 33*3cab2bb3Spatrick (void (*malloc_hook)(const volatile void *, size_t), 34*3cab2bb3Spatrick void (*free_hook)(const volatile void *)), 35*3cab2bb3Spatrick false); 36*3cab2bb3SpatrickEXT_FUNC(__sanitizer_log_write, void, (const char *buf, size_t len), false); 37*3cab2bb3SpatrickEXT_FUNC(__sanitizer_purge_allocator, void, (), false); 38*3cab2bb3SpatrickEXT_FUNC(__sanitizer_print_memory_profile, void, (size_t, size_t), false); 39*3cab2bb3SpatrickEXT_FUNC(__sanitizer_print_stack_trace, void, (), true); 40*3cab2bb3SpatrickEXT_FUNC(__sanitizer_symbolize_pc, void, 41*3cab2bb3Spatrick (void *, const char *fmt, char *out_buf, size_t out_buf_size), false); 42*3cab2bb3SpatrickEXT_FUNC(__sanitizer_get_module_and_offset_for_pc, int, 43*3cab2bb3Spatrick (void *pc, char *module_path, 44*3cab2bb3Spatrick size_t module_path_len,void **pc_offset), false); 45*3cab2bb3SpatrickEXT_FUNC(__sanitizer_set_death_callback, void, (void (*)(void)), true); 46*3cab2bb3SpatrickEXT_FUNC(__sanitizer_set_report_fd, void, (void*), false); 47*3cab2bb3SpatrickEXT_FUNC(__msan_scoped_disable_interceptor_checks, void, (), false); 48*3cab2bb3SpatrickEXT_FUNC(__msan_scoped_enable_interceptor_checks, void, (), false); 49*3cab2bb3SpatrickEXT_FUNC(__msan_unpoison, void, (const volatile void *, size_t size), false); 50*3cab2bb3SpatrickEXT_FUNC(__msan_unpoison_param, void, (size_t n), false); 51