1 //===- FuzzerExtFunctions.def - External functions --------------*- C++ -* ===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
9 // This defines the external function pointers that
10 // ``fuzzer::ExternalFunctions`` should contain and try to initialize. The
11 // EXT_FUNC macro must be defined at the point of inclusion. The signature of
14 // EXT_FUNC(<name>, <return_type>, <function_signature>, <warn_if_missing>)
15 //===----------------------------------------------------------------------===//
17 // Optional user functions
18 EXT_FUNC(LLVMFuzzerInitialize, int, (int *argc, char ***argv), false);
19 EXT_FUNC(LLVMFuzzerCustomMutator, size_t,
20 (uint8_t * Data, size_t Size, size_t MaxSize, unsigned int Seed),
22 EXT_FUNC(LLVMFuzzerCustomCrossOver, size_t,
23 (const uint8_t * Data1, size_t Size1,
24 const uint8_t * Data2, size_t Size2,
25 uint8_t * Out, size_t MaxOutSize, unsigned int Seed),
28 // Sanitizer functions
29 EXT_FUNC(__lsan_enable, void, (), false);
30 EXT_FUNC(__lsan_disable, void, (), false);
31 EXT_FUNC(__lsan_do_recoverable_leak_check, int, (), false);
32 EXT_FUNC(__sanitizer_acquire_crash_state, bool, (), true);
33 EXT_FUNC(__sanitizer_install_malloc_and_free_hooks, int,
34 (void (*malloc_hook)(const volatile void *, size_t),
35 void (*free_hook)(const volatile void *)),
37 EXT_FUNC(__sanitizer_purge_allocator, void, (), false);
38 EXT_FUNC(__sanitizer_print_memory_profile, int, (size_t, size_t), false);
39 EXT_FUNC(__sanitizer_print_stack_trace, void, (), true);
40 EXT_FUNC(__sanitizer_symbolize_pc, void,
41 (void *, const char *fmt, char *out_buf, size_t out_buf_size), false);
42 EXT_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);
45 EXT_FUNC(__sanitizer_set_death_callback, void, (void (*)(void)), true);
46 EXT_FUNC(__sanitizer_set_report_fd, void, (void*), false);
47 EXT_FUNC(__sanitizer_dump_coverage, void, (const uintptr_t *, uintptr_t),
49 EXT_FUNC(__msan_scoped_disable_interceptor_checks, void, (), false);
50 EXT_FUNC(__msan_scoped_enable_interceptor_checks, void, (), false);
51 EXT_FUNC(__msan_unpoison, void, (const volatile void *, size_t size), false);