compiler-rt/lib/fuzzer/FuzzerExtFunctions.def

   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
  17 EXT_FUNC(LLVMFuzzerInitialize, int, (int *argc, char ***argv), false);
  18 EXT_FUNC(LLVMFuzzerCustomMutator, size_t,
  19          (uint8_t *Data, size_t Size, size_t MaxSize, unsigned int Seed),
  20          false);
  21 EXT_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
  28 EXT_FUNC(__lsan_enable, void, (), false);
  29 EXT_FUNC(__lsan_disable, void, (), false);
  30 EXT_FUNC(__lsan_do_recoverable_leak_check, int, (), false);
  31 EXT_FUNC(__sanitizer_acquire_crash_state, int, (), true);
  32 EXT_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);
  36 EXT_FUNC(__sanitizer_log_write, void, (const char *buf, size_t len), false);
  37 EXT_FUNC(__sanitizer_purge_allocator, void, (), false);
  38 EXT_FUNC(__sanitizer_print_memory_profile, void, (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(__msan_scoped_disable_interceptor_checks, void, (), false);
  48 EXT_FUNC(__msan_scoped_enable_interceptor_checks, void, (), false);
  49 EXT_FUNC(__msan_unpoison, void, (const volatile void *, size_t size), false);
  50 EXT_FUNC(__msan_unpoison_param, void, (size_t n), false);