compiler-rt/lib/asan_abi/asan_abi.h

   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