forked from OSchip/llvm-project
146 lines
4.5 KiB
C++
146 lines
4.5 KiB
C++
//===-- asan_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 AddressSanitizer, an address sanity checker.
|
|
//
|
|
// ASan-private header which defines various general utilities.
|
|
//===----------------------------------------------------------------------===//
|
|
#ifndef ASAN_INTERNAL_H
|
|
#define ASAN_INTERNAL_H
|
|
|
|
#include "asan_flags.h"
|
|
#include "asan_interface_internal.h"
|
|
#include "sanitizer_common/sanitizer_common.h"
|
|
#include "sanitizer_common/sanitizer_internal_defs.h"
|
|
#include "sanitizer_common/sanitizer_stacktrace.h"
|
|
#include "sanitizer_common/sanitizer_libc.h"
|
|
|
|
#define ASAN_DEFAULT_FAILURE_EXITCODE 1
|
|
|
|
#if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
|
|
# error "The AddressSanitizer run-time should not be"
|
|
" instrumented by AddressSanitizer"
|
|
#endif
|
|
|
|
// Build-time configuration options.
|
|
|
|
// If set, asan will intercept C++ exception api call(s).
|
|
#ifndef ASAN_HAS_EXCEPTIONS
|
|
# define ASAN_HAS_EXCEPTIONS 1
|
|
#endif
|
|
|
|
// If set, values like allocator chunk size, as well as defaults for some flags
|
|
// will be changed towards less memory overhead.
|
|
#ifndef ASAN_LOW_MEMORY
|
|
#if SANITIZER_WORDSIZE == 32
|
|
# define ASAN_LOW_MEMORY 1
|
|
#else
|
|
# define ASAN_LOW_MEMORY 0
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef ASAN_DYNAMIC
|
|
# ifdef PIC
|
|
# define ASAN_DYNAMIC 1
|
|
# else
|
|
# define ASAN_DYNAMIC 0
|
|
# endif
|
|
#endif
|
|
|
|
// All internal functions in asan reside inside the __asan namespace
|
|
// to avoid namespace collisions with the user programs.
|
|
// Separate namespace also makes it simpler to distinguish the asan run-time
|
|
// functions from the instrumented user code in a profile.
|
|
namespace __asan {
|
|
|
|
class AsanThread;
|
|
using __sanitizer::StackTrace;
|
|
|
|
void AsanInitFromRtl();
|
|
|
|
// asan_rtl.cc
|
|
void NORETURN ShowStatsAndAbort();
|
|
|
|
// asan_malloc_linux.cc / asan_malloc_mac.cc
|
|
void ReplaceSystemMalloc();
|
|
|
|
// asan_linux.cc / asan_mac.cc / asan_win.cc
|
|
void *AsanDoesNotSupportStaticLinkage();
|
|
void AsanCheckDynamicRTPrereqs();
|
|
void AsanCheckIncompatibleRT();
|
|
|
|
void GetPcSpBp(void *context, uptr *pc, uptr *sp, uptr *bp);
|
|
void AsanOnSIGSEGV(int, void *siginfo, void *context);
|
|
|
|
void MaybeReexec();
|
|
bool AsanInterceptsSignal(int signum);
|
|
void ReadContextStack(void *context, uptr *stack, uptr *ssize);
|
|
void AsanPlatformThreadInit();
|
|
void StopInitOrderChecking();
|
|
|
|
// Wrapper for TLS/TSD.
|
|
void AsanTSDInit(void (*destructor)(void *tsd));
|
|
void *AsanTSDGet();
|
|
void AsanTSDSet(void *tsd);
|
|
void PlatformTSDDtor(void *tsd);
|
|
|
|
void AppendToErrorMessageBuffer(const char *buffer);
|
|
|
|
void ParseExtraActivationFlags();
|
|
|
|
void *AsanDlSymNext(const char *sym);
|
|
|
|
// Platform-specific options.
|
|
#if SANITIZER_MAC
|
|
bool PlatformHasDifferentMemcpyAndMemmove();
|
|
# define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE \
|
|
(PlatformHasDifferentMemcpyAndMemmove())
|
|
#else
|
|
# define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE true
|
|
#endif // SANITIZER_MAC
|
|
|
|
// Add convenient macro for interface functions that may be represented as
|
|
// weak hooks.
|
|
#define ASAN_MALLOC_HOOK(ptr, size) \
|
|
if (&__sanitizer_malloc_hook) __sanitizer_malloc_hook(ptr, size)
|
|
#define ASAN_FREE_HOOK(ptr) \
|
|
if (&__sanitizer_free_hook) __sanitizer_free_hook(ptr)
|
|
#define ASAN_ON_ERROR() \
|
|
if (&__asan_on_error) __asan_on_error()
|
|
|
|
extern int asan_inited;
|
|
// Used to avoid infinite recursion in __asan_init().
|
|
extern bool asan_init_is_running;
|
|
extern void (*death_callback)(void);
|
|
|
|
// These magic values are written to shadow for better error reporting.
|
|
const int kAsanHeapLeftRedzoneMagic = 0xfa;
|
|
const int kAsanHeapRightRedzoneMagic = 0xfb;
|
|
const int kAsanHeapFreeMagic = 0xfd;
|
|
const int kAsanStackLeftRedzoneMagic = 0xf1;
|
|
const int kAsanStackMidRedzoneMagic = 0xf2;
|
|
const int kAsanStackRightRedzoneMagic = 0xf3;
|
|
const int kAsanStackPartialRedzoneMagic = 0xf4;
|
|
const int kAsanStackAfterReturnMagic = 0xf5;
|
|
const int kAsanInitializationOrderMagic = 0xf6;
|
|
const int kAsanUserPoisonedMemoryMagic = 0xf7;
|
|
const int kAsanContiguousContainerOOBMagic = 0xfc;
|
|
const int kAsanStackUseAfterScopeMagic = 0xf8;
|
|
const int kAsanGlobalRedzoneMagic = 0xf9;
|
|
const int kAsanInternalHeapMagic = 0xfe;
|
|
const int kAsanArrayCookieMagic = 0xac;
|
|
const int kAsanIntraObjectRedzone = 0xbb;
|
|
|
|
static const uptr kCurrentStackFrameMagic = 0x41B58AB3;
|
|
static const uptr kRetiredStackFrameMagic = 0x45E0360E;
|
|
|
|
} // namespace __asan
|
|
|
|
#endif // ASAN_INTERNAL_H
|