1 //===-asan_abi.h - ASan Stable ABI Interface-------------------------------===// 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 9 #ifndef ASAN_ABI_H 10 #define ASAN_ABI_H 11 12 #include <stdbool.h> 13 #include <stddef.h> 14 #include <sys/cdefs.h> 15 #include <sys/types.h> 16 17 __BEGIN_DECLS 18 19 // Functions concerning instrumented global variables: 20 void __asan_abi_register_image_globals(); 21 void __asan_abi_unregister_image_globals(); 22 void __asan_abi_register_elf_globals(bool *flag, void *start, void *stop); 23 void __asan_abi_unregister_elf_globals(bool *flag, void *start, void *stop); 24 void __asan_abi_register_globals(void *globals, size_t n); 25 void __asan_abi_unregister_globals(void *globals, size_t n); 26 27 // Functions concerning dynamic library initialization 28 void __asan_abi_before_dynamic_init(const char *module_name); 29 void __asan_abi_after_dynamic_init(); 30 31 // Functions concerning block memory destinations 32 void *__asan_abi_memcpy(void *d, const void *s, size_t n); 33 void *__asan_abi_memmove(void *d, const void *s, size_t n); 34 void *__asan_abi_memset(void *p, int c, size_t n); 35 36 // Functions concerning RTL startup and initialization 37 void __asan_abi_init(); 38 void __asan_abi_handle_no_return(); 39 40 // Functions concerning memory load and store reporting 41 void __asan_abi_report_load_n(void *p, size_t n, bool abort); 42 void __asan_abi_report_exp_load_n(void *p, size_t n, int exp, bool abort); 43 void __asan_abi_report_store_n(void *p, size_t n, bool abort); 44 void __asan_abi_report_exp_store_n(void *p, size_t n, int exp, bool abort); 45 46 // Functions concerning memory load and store 47 void __asan_abi_load_n(void *p, size_t n, bool abort); 48 void __asan_abi_exp_load_n(void *p, size_t n, int exp, bool abort); 49 void __asan_abi_store_n(void *p, size_t n, bool abort); 50 void __asan_abi_exp_store_n(void *p, size_t n, int exp, bool abort); 51 52 // Functions concerning query about whether memory is poisoned 53 int __asan_abi_address_is_poisoned(void const volatile *p); 54 void *__asan_abi_region_is_poisoned(void const volatile *p, size_t size); 55 56 // Functions concerning the poisoning of memory 57 void __asan_abi_unpoison_memory_region(void const volatile *p, size_t n); 58 void __asan_abi_poison_memory_region(void const volatile *p, size_t n); 59 60 // Functions concerning the partial poisoning of memory 61 void __asan_abi_set_shadow_xx_n(void *p, unsigned char xx, size_t n); 62 63 // Functions concerning stack poisoning 64 void __asan_abi_poison_stack_memory(void *p, size_t n); 65 void __asan_abi_unpoison_stack_memory(void *p, size_t n); 66 67 // Functions concerning redzone poisoning 68 void __asan_abi_poison_intra_object_redzone(void *p, size_t size); 69 void __asan_abi_unpoison_intra_object_redzone(void *p, size_t size); 70 71 // Functions concerning array cookie poisoning 72 void __asan_abi_poison_cxx_array_cookie(void *p); 73 void *__asan_abi_load_cxx_array_cookie(void **p); 74 75 // Functions concerning fake stacks 76 void *__asan_abi_get_current_fake_stack(); 77 void *__asan_abi_addr_is_in_fake_stack(void *fake_stack, void *addr, void **beg, 78 void **end); 79 // Functions concerning poisoning and unpoisoning fake stack alloca 80 void __asan_abi_alloca_poison(void *addr, size_t size); 81 void __asan_abi_allocas_unpoison(void *top, void *bottom); 82 83 // Functions concerning fake stack malloc 84 void *__asan_abi_stack_malloc_n(size_t scale, size_t size); 85 void *__asan_abi_stack_malloc_always_n(size_t scale, size_t size); 86 87 // Functions concerning fake stack free 88 void __asan_abi_stack_free_n(int scale, void *p, size_t n); 89 90 __END_DECLS 91 #endif // ASAN_ABI_H 92