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6d11abfe35
Summary: GCC would like to emit a function call to report a tag mismatch rather than hard-code the `brk` instruction directly. __hwasan_tag_mismatch_stub contains most of the functionality to do this already, but requires exposure in the dynamic library. This patch moves __hwasan_tag_mismatch_stub outside of the anonymous namespace that it was defined in and declares it in hwasan_interface_internal.h. We also add the ability to pass sizes larger than 16 bytes to this reporting function by providing a fourth parameter that is only looked at when the size provided is not in the original accepted range. This does not change the behaviour where it is already being called, since the previous definition only accepted sizes up to 16 bytes and hence the change in behaviour is not seen by existing users. The change in declaration does not matter, since the only existing use is in the __hwasan_tag_mismatch function written in assembly. Reviewers: eugenis, kcc, pcc, #sanitizers Reviewed By: eugenis, #sanitizers Subscribers: kristof.beyls, llvm-commits Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D69113 Patch by Matthew Malcomson <matthew.malcomson@arm.com>
228 lines
6.3 KiB
C++
228 lines
6.3 KiB
C++
//===-- hwasan_interface_internal.h -----------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of HWAddressSanitizer.
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//
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// Private Hwasan interface header.
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//===----------------------------------------------------------------------===//
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#ifndef HWASAN_INTERFACE_INTERNAL_H
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#define HWASAN_INTERFACE_INTERNAL_H
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#include "sanitizer_common/sanitizer_internal_defs.h"
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#include "sanitizer_common/sanitizer_platform_limits_posix.h"
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#include <link.h>
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extern "C" {
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_init_static();
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_init();
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_library_loaded(ElfW(Addr) base, const ElfW(Phdr) * phdr,
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ElfW(Half) phnum);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_library_unloaded(ElfW(Addr) base, const ElfW(Phdr) * phdr,
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ElfW(Half) phnum);
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using __sanitizer::uptr;
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using __sanitizer::sptr;
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using __sanitizer::uu64;
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using __sanitizer::uu32;
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using __sanitizer::uu16;
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using __sanitizer::u64;
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using __sanitizer::u32;
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using __sanitizer::u16;
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using __sanitizer::u8;
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_init_frames(uptr, uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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extern uptr __hwasan_shadow_memory_dynamic_address;
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_loadN(uptr, uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load1(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load2(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load4(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load8(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load16(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_loadN_noabort(uptr, uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load1_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load2_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load4_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load8_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load16_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_storeN(uptr, uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store1(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store2(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store4(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store8(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store16(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_storeN_noabort(uptr, uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store1_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store2_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store4_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store8_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store16_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_tag_memory(uptr p, u8 tag, uptr sz);
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SANITIZER_INTERFACE_ATTRIBUTE
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uptr __hwasan_tag_pointer(uptr p, u8 tag);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_tag_mismatch(uptr addr, u8 ts);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_tag_mismatch4(uptr addr, uptr access_info, uptr *registers_frame,
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size_t outsize);
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SANITIZER_INTERFACE_ATTRIBUTE
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u8 __hwasan_generate_tag();
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// Returns the offset of the first tag mismatch or -1 if the whole range is
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// good.
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SANITIZER_INTERFACE_ATTRIBUTE
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sptr __hwasan_test_shadow(const void *x, uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
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/* OPTIONAL */ const char* __hwasan_default_options();
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_print_shadow(const void *x, uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_handle_longjmp(const void *sp_dst);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_handle_vfork(const void *sp_dst);
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SANITIZER_INTERFACE_ATTRIBUTE
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u16 __sanitizer_unaligned_load16(const uu16 *p);
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SANITIZER_INTERFACE_ATTRIBUTE
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u32 __sanitizer_unaligned_load32(const uu32 *p);
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SANITIZER_INTERFACE_ATTRIBUTE
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u64 __sanitizer_unaligned_load64(const uu64 *p);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __sanitizer_unaligned_store16(uu16 *p, u16 x);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __sanitizer_unaligned_store32(uu32 *p, u32 x);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __sanitizer_unaligned_store64(uu64 *p, u64 x);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_enable_allocator_tagging();
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_disable_allocator_tagging();
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_thread_enter();
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_thread_exit();
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_print_memory_usage();
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SANITIZER_INTERFACE_ATTRIBUTE
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int __sanitizer_posix_memalign(void **memptr, uptr alignment, uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE
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void * __sanitizer_memalign(uptr alignment, uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE
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void * __sanitizer_aligned_alloc(uptr alignment, uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE
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void * __sanitizer___libc_memalign(uptr alignment, uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE
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void * __sanitizer_valloc(uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE
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void * __sanitizer_pvalloc(uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __sanitizer_free(void *ptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __sanitizer_cfree(void *ptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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uptr __sanitizer_malloc_usable_size(const void *ptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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__hwasan::__sanitizer_struct_mallinfo __sanitizer_mallinfo();
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SANITIZER_INTERFACE_ATTRIBUTE
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int __sanitizer_mallopt(int cmd, int value);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __sanitizer_malloc_stats(void);
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SANITIZER_INTERFACE_ATTRIBUTE
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void * __sanitizer_calloc(uptr nmemb, uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE
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void * __sanitizer_realloc(void *ptr, uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE
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void * __sanitizer_reallocarray(void *ptr, uptr nmemb, uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE
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void * __sanitizer_malloc(uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE
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void *__hwasan_memcpy(void *dst, const void *src, uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE
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void *__hwasan_memset(void *s, int c, uptr n);
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SANITIZER_INTERFACE_ATTRIBUTE
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void *__hwasan_memmove(void *dest, const void *src, uptr n);
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} // extern "C"
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#endif // HWASAN_INTERFACE_INTERNAL_H
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