From 32e20e4417a0dd8870d8ec5c9be21f5c2d1ebc63 Mon Sep 17 00:00:00 2001 From: Evgeniy Stepanov Date: Sat, 9 Dec 2017 01:31:51 +0000 Subject: Hardware-assisted AddressSanitizer (compiler-rt) Summary: Runtime library for HWASan, initial commit. Does not randomize tags yet, does not handle stack or globals. Reviewers: kcc, pcc, alekseyshl Subscribers: srhines, kubamracek, dberris, mgorny, llvm-commits, krytarowski Differential Revision: https://reviews.llvm.org/D40935 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320231 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/hwasan/hwasan_interface_internal.h | 105 +++++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 lib/hwasan/hwasan_interface_internal.h (limited to 'lib/hwasan/hwasan_interface_internal.h') diff --git a/lib/hwasan/hwasan_interface_internal.h b/lib/hwasan/hwasan_interface_internal.h new file mode 100644 index 000000000..07f73ce22 --- /dev/null +++ b/lib/hwasan/hwasan_interface_internal.h @@ -0,0 +1,105 @@ +//===-- hwasan_interface_internal.h -------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file is a part of HWAddressSanitizer. +// +// Private Hwasan interface header. +//===----------------------------------------------------------------------===// + +#ifndef HWASAN_INTERFACE_INTERNAL_H +#define HWASAN_INTERFACE_INTERNAL_H + +#include "sanitizer_common/sanitizer_internal_defs.h" + +extern "C" { +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_init(); + +using __sanitizer::uptr; +using __sanitizer::sptr; +using __sanitizer::uu64; +using __sanitizer::uu32; +using __sanitizer::uu16; +using __sanitizer::u64; +using __sanitizer::u32; +using __sanitizer::u16; +using __sanitizer::u8; + +SANITIZER_INTERFACE_ATTRIBUTE +extern uptr __hwasan_shadow_memory_dynamic_address; + +// Hidden alias for internal access. +__attribute__((visibility("hidden"))) +extern uptr __hwasan_shadow_memory_dynamic_address_internal; + + +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_load(uptr, uptr); +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_load1(uptr); +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_load2(uptr); +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_load4(uptr); +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_load8(uptr); +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_load16(uptr); + +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_store(uptr, uptr); +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_store1(uptr); +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_store2(uptr); +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_store4(uptr); +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_store8(uptr); +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_store16(uptr); + +// Returns the offset of the first tag mismatch or -1 if the whole range is +// good. +SANITIZER_INTERFACE_ATTRIBUTE +sptr __hwasan_test_shadow(const void *x, uptr size); + +SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE +/* OPTIONAL */ const char* __hwasan_default_options(); + +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_print_shadow(const void *x, uptr size); + +SANITIZER_INTERFACE_ATTRIBUTE +u16 __sanitizer_unaligned_load16(const uu16 *p); + +SANITIZER_INTERFACE_ATTRIBUTE +u32 __sanitizer_unaligned_load32(const uu32 *p); + +SANITIZER_INTERFACE_ATTRIBUTE +u64 __sanitizer_unaligned_load64(const uu64 *p); + +SANITIZER_INTERFACE_ATTRIBUTE +void __sanitizer_unaligned_store16(uu16 *p, u16 x); + +SANITIZER_INTERFACE_ATTRIBUTE +void __sanitizer_unaligned_store32(uu32 *p, u32 x); + +SANITIZER_INTERFACE_ATTRIBUTE +void __sanitizer_unaligned_store64(uu64 *p, u64 x); + +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_enable_allocator_tagging(); + +SANITIZER_INTERFACE_ATTRIBUTE +void __hwasan_disable_allocator_tagging(); + +} // extern "C" + +#endif // HWASAN_INTERFACE_INTERNAL_H -- cgit v1.2.3