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📄 README.txt(924 B)
📄 asan.syms.extra(39 B)
📄 asan_activation.cpp(4.55 KB)
📄 asan_activation.h(736 B)
📄 asan_activation_flags.inc(1.42 KB)
📄 asan_allocator.cpp(40.63 KB)
📄 asan_allocator.h(8.05 KB)
📄 asan_blacklist.txt(513 B)
📄 asan_debugging.cpp(4.7 KB)
📄 asan_descriptions.cpp(16.44 KB)
📄 asan_descriptions.h(7.59 KB)
📄 asan_errors.cpp(21.78 KB)
📄 asan_errors.h(14.75 KB)
📄 asan_fake_stack.cpp(10.82 KB)
📄 asan_fake_stack.h(6.89 KB)
📄 asan_flags.cpp(7.32 KB)
📄 asan_flags.h(1.45 KB)
📄 asan_flags.inc(7.92 KB)
📄 asan_fuchsia.cpp(8.18 KB)
📄 asan_globals.cpp(16.98 KB)
📄 asan_globals_win.cpp(2.03 KB)
📄 asan_init_version.h(1.88 KB)
📄 asan_interceptors.cpp(23.89 KB)
📄 asan_interceptors.h(4.86 KB)
📄 asan_interceptors_memintrinsics.cpp(1.52 KB)
📄 asan_interceptors_memintrinsics.h(8.12 KB)
📄 asan_interceptors_vfork.S(526 B)
📄 asan_interface.inc(7.25 KB)
📄 asan_interface_internal.h(10.88 KB)
📄 asan_internal.h(5.95 KB)
📄 asan_linux.cpp(7.45 KB)
📄 asan_lock.h(0 B)
📄 asan_mac.cpp(11.64 KB)
📄 asan_malloc_linux.cpp(9.8 KB)
📄 asan_malloc_local.h(1.92 KB)
📄 asan_malloc_mac.cpp(3.83 KB)
📄 asan_malloc_win.cpp(19.55 KB)
📄 asan_mapping.h(14.72 KB)
📄 asan_mapping_myriad.h(2.11 KB)
📄 asan_mapping_sparc64.h(2.95 KB)
📄 asan_memory_profile.cpp(4.12 KB)
📄 asan_new_delete.cpp(8.16 KB)
📄 asan_poisoning.cpp(16 KB)
📄 asan_poisoning.h(3.85 KB)
📄 asan_posix.cpp(4.12 KB)
📄 asan_preinit.cpp(1 KB)
📄 asan_premap_shadow.cpp(2.7 KB)
📄 asan_premap_shadow.h(913 B)
📄 asan_report.cpp(20.2 KB)
📄 asan_report.h(4.59 KB)
📄 asan_rtems.cpp(8.9 KB)
📄 asan_rtl.cpp(22.99 KB)
📄 asan_scariness_score.h(2.25 KB)
📄 asan_shadow_setup.cpp(6.2 KB)
📄 asan_stack.cpp(2.28 KB)
📄 asan_stack.h(3.29 KB)
📄 asan_stats.cpp(5.62 KB)
📄 asan_stats.h(2.05 KB)
📄 asan_suppressions.cpp(3.62 KB)
📄 asan_suppressions.h(1.01 KB)
📄 asan_thread.cpp(18.01 KB)
📄 asan_thread.h(5.56 KB)
📄 asan_win.cpp(13.74 KB)
📄 asan_win_dll_thunk.cpp(5.12 KB)
📄 asan_win_dynamic_runtime_thunk.cpp(5.4 KB)
📄 asan_win_weak_interception.cpp(1.14 KB)
📄 weak_symbols.txt(268 B)

Editing: asan_internal.h

//===-- asan_internal.h -----------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// 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"

#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_IOS || SANITIZER_ANDROID || SANITIZER_RTEMS
#  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_win.cpp
void InitializePlatformExceptionHandlers();
// Returns whether an address is a valid allocated system heap block.
// 'addr' must point to the beginning of the block.
bool IsSystemHeapAddress(uptr addr);

// asan_rtl.cpp
void PrintAddressSpaceLayout();
void NORETURN ShowStatsAndAbort();

// asan_shadow_setup.cpp
void InitializeShadowMemory();

// asan_malloc_linux.cpp / asan_malloc_mac.cpp
void ReplaceSystemMalloc();

// asan_linux.cpp / asan_mac.cpp / asan_rtems.cpp / asan_win.cpp
uptr FindDynamicShadowStart();
void *AsanDoesNotSupportStaticLinkage();
void AsanCheckDynamicRTPrereqs();
void AsanCheckIncompatibleRT();

// Unpoisons platform-specific stacks.
// Returns true if all stacks have been unpoisoned.
bool PlatformUnpoisonStacks();

// asan_rtl.cpp
// Unpoison a region containing a stack.
// Performs a sanity check and warns if the bounds don't look right.
// The warning contains the type string to identify the stack type.
void UnpoisonStack(uptr bottom, uptr top, const char *type);

// asan_thread.cpp
AsanThread *CreateMainThread();

// Support function for __asan_(un)register_image_globals. Searches for the
// loaded image containing `needle' and then enumerates all global metadata
// structures declared in that image, applying `op' (e.g.,
// __asan_(un)register_globals) to them.
typedef void (*globals_op_fptr)(__asan_global *, uptr);
void AsanApplyToGlobals(globals_op_fptr op, const void *needle);

void AsanOnDeadlySignal(int, void *siginfo, void *context);

void ReadContextStack(void *context, uptr *stack, uptr *ssize);
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 *AsanDlSymNext(const char *sym);

void ReserveShadowMemoryRange(uptr beg, uptr end, const char *name);

// Returns `true` iff most of ASan init process should be skipped due to the
// ASan library being loaded via `dlopen()`. Platforms may perform any
// `dlopen()` specific initialization inside this function.
bool HandleDlopenInit();

// Add convenient macro for interface functions that may be represented as
// weak hooks.
#define ASAN_MALLOC_HOOK(ptr, size)                                   \
  do {                                                                \
    if (&__sanitizer_malloc_hook) __sanitizer_malloc_hook(ptr, size); \
    RunMallocHooks(ptr, size);                                        \
  } while (false)
#define ASAN_FREE_HOOK(ptr)                                 \
  do {                                                      \
    if (&__sanitizer_free_hook) __sanitizer_free_hook(ptr); \
    RunFreeHooks(ptr);                                      \
  } while (false)
#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 kAsanHeapFreeMagic = 0xfd;
const int kAsanStackLeftRedzoneMagic = 0xf1;
const int kAsanStackMidRedzoneMagic = 0xf2;
const int kAsanStackRightRedzoneMagic = 0xf3;
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;
const int kAsanAllocaLeftMagic = 0xca;
const int kAsanAllocaRightMagic = 0xcb;
// Used to populate the shadow gap for systems without memory
// protection there (i.e. Myriad).
const int kAsanShadowGap = 0xcc;

static const uptr kCurrentStackFrameMagic = 0x41B58AB3;
static const uptr kRetiredStackFrameMagic = 0x45E0360E;

}  // namespace __asan

#endif  // ASAN_INTERNAL_H

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