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| 1 | +//===-asan_abi.cpp - ASan Stable ABI---------------------------------------===// |
| 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 | +#include "asan_abi.h" |
| 10 | + |
| 11 | +extern "C" { |
| 12 | +// Functions concerning instrumented global variables: |
| 13 | +void __asan_abi_register_image_globals(void) {} |
| 14 | +void __asan_abi_unregister_image_globals(void) {} |
| 15 | + |
| 16 | +// Functions concerning dynamic library initialization |
| 17 | +void __asan_abi_before_dynamic_init(const char *module_name) {} |
| 18 | +void __asan_abi_after_dynamic_init(void) {} |
| 19 | + |
| 20 | +// Functions concerning block memory destinations |
| 21 | +void *__asan_abi_memcpy(void *d, const void *s, size_t n) { return NULL; } |
| 22 | +void *__asan_abi_memmove(void *d, const void *s, size_t n) { return NULL; } |
| 23 | +void *__asan_abi_memset(void *p, int c, size_t n) { return NULL; } |
| 24 | + |
| 25 | +// Functions concerning RTL startup and initialization |
| 26 | +void __asan_abi_init(void) {} |
| 27 | +void __asan_abi_handle_no_return(void) {} |
| 28 | + |
| 29 | +// Functions concerning memory load and store reporting |
| 30 | +void __asan_abi_report_load_n(void *p, size_t n, bool abort) {} |
| 31 | +void __asan_abi_report_exp_load_n(void *p, size_t n, int exp, bool abort) {} |
| 32 | +void __asan_abi_report_store_n(void *p, size_t n, bool abort) {} |
| 33 | +void __asan_abi_report_exp_store_n(void *p, size_t n, int exp, bool abort) {} |
| 34 | + |
| 35 | +// Functions concerning memory load and store |
| 36 | +void __asan_abi_load_n(void *p, size_t n, bool abort) {} |
| 37 | +void __asan_abi_exp_load_n(void *p, size_t n, int exp, bool abort) {} |
| 38 | +void __asan_abi_store_n(void *p, size_t n, bool abort) {} |
| 39 | +void __asan_abi_exp_store_n(void *p, size_t n, int exp, bool abort) {} |
| 40 | + |
| 41 | +// Functions concerning query about whether memory is poisoned |
| 42 | +int __asan_abi_address_is_poisoned(void const volatile *p) { return 0; } |
| 43 | +void *__asan_abi_region_is_poisoned(void const volatile *p, size_t size) { |
| 44 | + return NULL; |
| 45 | +} |
| 46 | + |
| 47 | +// Functions concerning the poisoning of memory |
| 48 | +void __asan_abi_poison_memory_region(void const volatile *p, size_t n) {} |
| 49 | +void __asan_abi_unpoison_memory_region(void const volatile *p, size_t n) {} |
| 50 | + |
| 51 | +// Functions concerning the partial poisoning of memory |
| 52 | +void __asan_abi_set_shadow_xx_n(void *p, unsigned char xx, size_t n) {} |
| 53 | + |
| 54 | +// Functions concerning stack poisoning |
| 55 | +void __asan_abi_poison_stack_memory(void *p, size_t n) {} |
| 56 | +void __asan_abi_unpoison_stack_memory(void *p, size_t n) {} |
| 57 | + |
| 58 | +// Functions concerning redzone poisoning |
| 59 | +void __asan_abi_poison_intra_object_redzone(void *p, size_t size) {} |
| 60 | +void __asan_abi_unpoison_intra_object_redzone(void *p, size_t size) {} |
| 61 | + |
| 62 | +// Functions concerning array cookie poisoning |
| 63 | +void __asan_abi_poison_cxx_array_cookie(void *p) {} |
| 64 | +void *__asan_abi_load_cxx_array_cookie(void **p) { return NULL; } |
| 65 | + |
| 66 | +// Functions concerning fake stacks |
| 67 | +void *__asan_abi_get_current_fake_stack(void) { return NULL; } |
| 68 | +void *__asan_abi_addr_is_in_fake_stack(void *fake_stack, void *addr, void **beg, |
| 69 | + void **end) { |
| 70 | + return NULL; |
| 71 | +} |
| 72 | + |
| 73 | +// Functions concerning poisoning and unpoisoning fake stack alloca |
| 74 | +void __asan_abi_alloca_poison(void *addr, size_t size) {} |
| 75 | +void __asan_abi_allocas_unpoison(void *top, void *bottom) {} |
| 76 | + |
| 77 | +// Functions concerning fake stack malloc |
| 78 | +void *__asan_abi_stack_malloc_n(size_t scale, size_t size) { return NULL; } |
| 79 | +void *__asan_abi_stack_malloc_always_n(size_t scale, size_t size) { |
| 80 | + return NULL; |
| 81 | +} |
| 82 | + |
| 83 | +// Functions concerning fake stack free |
| 84 | +void __asan_abi_stack_free_n(int scale, void *p, size_t n) {} |
| 85 | +} |
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