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📁 ..
📄 sancov_flags.cpp(1.64 KB)
📄 sancov_flags.h(1.08 KB)
📄 sancov_flags.inc(777 B)
📄 sanitizer_addrhashmap.h(9.19 KB)
📄 sanitizer_allocator.cpp(8.73 KB)
📄 sanitizer_allocator.h(2.69 KB)
📄 sanitizer_allocator_bytemap.h(3.12 KB)
📄 sanitizer_allocator_checks.cpp(686 B)
📄 sanitizer_allocator_checks.h(2.67 KB)
📄 sanitizer_allocator_combined.h(6.29 KB)
📄 sanitizer_allocator_interface.h(1.83 KB)
📄 sanitizer_allocator_internal.h(2.03 KB)
📄 sanitizer_allocator_local_cache.h(8.95 KB)
📄 sanitizer_allocator_primary32.h(12.64 KB)
📄 sanitizer_allocator_primary64.h(32.71 KB)
📄 sanitizer_allocator_report.cpp(4.68 KB)
📄 sanitizer_allocator_report.h(1.72 KB)
📄 sanitizer_allocator_secondary.h(10.78 KB)
📄 sanitizer_allocator_size_class_map.h(10.12 KB)
📄 sanitizer_allocator_stats.h(2.76 KB)
📄 sanitizer_asm.h(2.57 KB)
📄 sanitizer_atomic.h(1.97 KB)
📄 sanitizer_atomic_clang.h(3.42 KB)
📄 sanitizer_atomic_clang_mips.h(3.77 KB)
📄 sanitizer_atomic_clang_other.h(3.02 KB)
📄 sanitizer_atomic_clang_x86.h(3.77 KB)
📄 sanitizer_atomic_msvc.h(8.53 KB)
📄 sanitizer_bitvector.h(9.43 KB)
📄 sanitizer_bvgraph.h(4.62 KB)
📄 sanitizer_common.cpp(10.13 KB)
📄 sanitizer_common.h(30.64 KB)
📄 sanitizer_common_interceptors.inc(348.66 KB)
📄 sanitizer_common_interceptors_format.inc(16.84 KB)
📄 sanitizer_common_interceptors_ioctl.inc(22.13 KB)
📄 sanitizer_common_interceptors_netbsd_compat.inc(4.07 KB)
📄 sanitizer_common_interceptors_vfork_aarch64.inc.S(1.23 KB)
📄 sanitizer_common_interceptors_vfork_arm.inc.S(1.24 KB)
📄 sanitizer_common_interceptors_vfork_i386.inc.S(1.66 KB)
📄 sanitizer_common_interceptors_vfork_x86_64.inc.S(1.03 KB)
📄 sanitizer_common_interface.inc(2.05 KB)
📄 sanitizer_common_interface_posix.inc(732 B)
📄 sanitizer_common_libcdep.cpp(5.4 KB)
📄 sanitizer_common_nolibc.cpp(1.12 KB)
📄 sanitizer_common_syscalls.inc(85 KB)
📄 sanitizer_coverage_fuchsia.cpp(10.1 KB)
📄 sanitizer_coverage_interface.inc(1.73 KB)
📄 sanitizer_coverage_libcdep_new.cpp(7.39 KB)
📄 sanitizer_coverage_win_dll_thunk.cpp(1.03 KB)
📄 sanitizer_coverage_win_dynamic_runtime_thunk.cpp(1.16 KB)
📄 sanitizer_coverage_win_sections.cpp(3.36 KB)
📄 sanitizer_coverage_win_weak_interception.cpp(1.17 KB)
📄 sanitizer_dbghelp.h(1.44 KB)
📄 sanitizer_deadlock_detector.h(13.28 KB)
📄 sanitizer_deadlock_detector1.cpp(5.6 KB)
📄 sanitizer_deadlock_detector2.cpp(10.84 KB)
📄 sanitizer_deadlock_detector_interface.h(2.66 KB)
📄 sanitizer_errno.cpp(1.09 KB)
📄 sanitizer_errno.h(1.3 KB)
📄 sanitizer_errno_codes.h(1.1 KB)
📄 sanitizer_file.cpp(6.24 KB)
📄 sanitizer_file.h(3.67 KB)
📄 sanitizer_flag_parser.cpp(5.55 KB)
📄 sanitizer_flag_parser.h(5.71 KB)
📄 sanitizer_flags.cpp(3.95 KB)
📄 sanitizer_flags.h(2.13 KB)
📄 sanitizer_flags.inc(12.73 KB)
📄 sanitizer_freebsd.h(3.31 KB)
📄 sanitizer_fuchsia.cpp(16.58 KB)
📄 sanitizer_fuchsia.h(1.03 KB)
📄 sanitizer_getauxval.h(1.73 KB)
📄 sanitizer_glibc_version.h(748 B)
📄 sanitizer_hash.h(1.04 KB)
📄 sanitizer_interceptors_ioctl_netbsd.inc(68.81 KB)
📄 sanitizer_interface_internal.h(5.28 KB)
📄 sanitizer_internal_defs.h(14.28 KB)
📄 sanitizer_lfstack.h(2.08 KB)
📄 sanitizer_libc.cpp(7.21 KB)
📄 sanitizer_libc.h(3.23 KB)
📄 sanitizer_libignore.cpp(4.24 KB)
📄 sanitizer_libignore.h(3.5 KB)
📄 sanitizer_linux.cpp(71.58 KB)
📄 sanitizer_linux.h(5.47 KB)
📄 sanitizer_linux_libcdep.cpp(25.67 KB)
📄 sanitizer_linux_s390.cpp(6.91 KB)
📄 sanitizer_list.h(3.81 KB)
📄 sanitizer_local_address_space_view.h(3.67 KB)
📄 sanitizer_mac.cpp(38.67 KB)
📄 sanitizer_mac.h(2.49 KB)
📄 sanitizer_mac_libcdep.cpp(968 B)
📄 sanitizer_malloc_mac.inc(13.06 KB)
📄 sanitizer_mutex.h(5.17 KB)
📄 sanitizer_netbsd.cpp(9.95 KB)
📄 sanitizer_openbsd.cpp(3.17 KB)
📄 sanitizer_persistent_allocator.cpp(687 B)
📄 sanitizer_persistent_allocator.h(2.31 KB)
📄 sanitizer_placement_new.h(885 B)
📄 sanitizer_platform.h(10.11 KB)
📄 sanitizer_platform_interceptors.h(24.93 KB)
📄 sanitizer_platform_limits_freebsd.cpp(19.79 KB)
📄 sanitizer_platform_limits_freebsd.h(18.41 KB)
📄 sanitizer_platform_limits_linux.cpp(3.32 KB)
📄 sanitizer_platform_limits_netbsd.cpp(109.73 KB)
📄 sanitizer_platform_limits_netbsd.h(81.54 KB)
📄 sanitizer_platform_limits_openbsd.cpp(8.69 KB)
📄 sanitizer_platform_limits_openbsd.h(8.68 KB)
📄 sanitizer_platform_limits_posix.cpp(48.89 KB)
📄 sanitizer_platform_limits_posix.h(40.65 KB)
📄 sanitizer_platform_limits_solaris.cpp(11.93 KB)
📄 sanitizer_platform_limits_solaris.h(12.26 KB)
📄 sanitizer_posix.cpp(11.93 KB)
📄 sanitizer_posix.h(5.14 KB)
📄 sanitizer_posix_libcdep.cpp(16.21 KB)
📄 sanitizer_printf.cpp(12.07 KB)
📄 sanitizer_procmaps.h(2.93 KB)
📄 sanitizer_procmaps_bsd.cpp(3.81 KB)
📄 sanitizer_procmaps_common.cpp(5.27 KB)
📄 sanitizer_procmaps_fuchsia.cpp(2.51 KB)
📄 sanitizer_procmaps_linux.cpp(2.9 KB)
📄 sanitizer_procmaps_mac.cpp(13.7 KB)
📄 sanitizer_procmaps_solaris.cpp(2.18 KB)
📄 sanitizer_ptrauth.h(720 B)
📄 sanitizer_quarantine.h(9.57 KB)
📄 sanitizer_report_decorator.h(1.89 KB)
📄 sanitizer_ring_buffer.h(4.7 KB)
📄 sanitizer_rtems.cpp(7.61 KB)
📄 sanitizer_rtems.h(772 B)
📄 sanitizer_signal_interceptors.inc(2.89 KB)
📄 sanitizer_solaris.cpp(6.6 KB)
📄 sanitizer_stackdepot.cpp(4.54 KB)
📄 sanitizer_stackdepot.h(2.13 KB)
📄 sanitizer_stackdepotbase.h(5.58 KB)
📄 sanitizer_stacktrace.cpp(4.58 KB)
📄 sanitizer_stacktrace.h(5.65 KB)
📄 sanitizer_stacktrace_libcdep.cpp(5.54 KB)
📄 sanitizer_stacktrace_printer.cpp(9.08 KB)
📄 sanitizer_stacktrace_printer.h(3.08 KB)
📄 sanitizer_stacktrace_sparc.cpp(3.05 KB)
📄 sanitizer_stoptheworld.h(2.34 KB)
📄 sanitizer_stoptheworld_fuchsia.cpp(1.28 KB)
📄 sanitizer_stoptheworld_linux_libcdep.cpp(20.8 KB)
📄 sanitizer_stoptheworld_mac.cpp(5.29 KB)
📄 sanitizer_stoptheworld_netbsd_libcdep.cpp(11.02 KB)
📄 sanitizer_suppressions.cpp(5.67 KB)
📄 sanitizer_suppressions.h(1.69 KB)
📄 sanitizer_symbolizer.cpp(3.65 KB)
📄 sanitizer_symbolizer.h(6.62 KB)
📄 sanitizer_symbolizer_fuchsia.h(1.56 KB)
📄 sanitizer_symbolizer_internal.h(5.8 KB)
📄 sanitizer_symbolizer_libbacktrace.cpp(6.1 KB)
📄 sanitizer_symbolizer_libbacktrace.h(1.49 KB)
📄 sanitizer_symbolizer_libcdep.cpp(17.45 KB)
📄 sanitizer_symbolizer_mac.cpp(8.48 KB)
📄 sanitizer_symbolizer_mac.h(1.37 KB)
📄 sanitizer_symbolizer_markup.cpp(5.39 KB)
📄 sanitizer_symbolizer_posix_libcdep.cpp(16.5 KB)
📄 sanitizer_symbolizer_report.cpp(10.01 KB)
📄 sanitizer_symbolizer_rtems.h(1.56 KB)
📄 sanitizer_symbolizer_win.cpp(11.59 KB)
📄 sanitizer_syscall_generic.inc(1.06 KB)
📄 sanitizer_syscall_linux_aarch64.inc(4.58 KB)
📄 sanitizer_syscall_linux_arm.inc(4.58 KB)
📄 sanitizer_syscall_linux_x86_64.inc(3.07 KB)
📄 sanitizer_syscalls_netbsd.inc(120.97 KB)
📄 sanitizer_termination.cpp(2.86 KB)
📄 sanitizer_thread_registry.cpp(10.31 KB)
📄 sanitizer_thread_registry.h(5.44 KB)
📄 sanitizer_tls_get_addr.cpp(5.29 KB)
📄 sanitizer_tls_get_addr.h(2.21 KB)
📄 sanitizer_type_traits.cpp(708 B)
📄 sanitizer_type_traits.h(1.49 KB)
📄 sanitizer_unwind_linux_libcdep.cpp(6.13 KB)
📄 sanitizer_unwind_win.cpp(2.41 KB)
📄 sanitizer_vector.h(2.57 KB)
📄 sanitizer_win.cpp(33.3 KB)
📄 sanitizer_win.h(851 B)
📄 sanitizer_win_defs.h(7.23 KB)
📄 sanitizer_win_dll_thunk.cpp(3.41 KB)
📄 sanitizer_win_dll_thunk.h(11.13 KB)
📄 sanitizer_win_dynamic_runtime_thunk.cpp(1.16 KB)
📄 sanitizer_win_weak_interception.cpp(3.49 KB)
📄 sanitizer_win_weak_interception.h(1.64 KB)
📁 symbolizer
📄 weak_symbols.txt(230 B)

Editing: sanitizer_allocator_combined.h

//===-- sanitizer_allocator_combined.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
//
//===----------------------------------------------------------------------===//
//
// Part of the Sanitizer Allocator.
//
//===----------------------------------------------------------------------===//
#ifndef SANITIZER_ALLOCATOR_H
#error This file must be included inside sanitizer_allocator.h
#endif

// This class implements a complete memory allocator by using two
// internal allocators:
// PrimaryAllocator is efficient, but may not allocate some sizes (alignments).
//  When allocating 2^x bytes it should return 2^x aligned chunk.
// PrimaryAllocator is used via a local AllocatorCache.
// SecondaryAllocator can allocate anything, but is not efficient.
template <class PrimaryAllocator,
          class LargeMmapAllocatorPtrArray = DefaultLargeMmapAllocatorPtrArray>
class CombinedAllocator {
 public:
  using AllocatorCache = typename PrimaryAllocator::AllocatorCache;
  using SecondaryAllocator =
      LargeMmapAllocator<typename PrimaryAllocator::MapUnmapCallback,
                         LargeMmapAllocatorPtrArray,
                         typename PrimaryAllocator::AddressSpaceView>;

void InitLinkerInitialized(s32 release_to_os_interval_ms) {
    stats_.InitLinkerInitialized();
    primary_.Init(release_to_os_interval_ms);
    secondary_.InitLinkerInitialized();
  }

void Init(s32 release_to_os_interval_ms) {
    stats_.Init();
    primary_.Init(release_to_os_interval_ms);
    secondary_.Init();
  }

void *Allocate(AllocatorCache *cache, uptr size, uptr alignment) {
    // Returning 0 on malloc(0) may break a lot of code.
    if (size == 0)
      size = 1;
    if (size + alignment < size) {
      Report("WARNING: %s: CombinedAllocator allocation overflow: "
             "0x%zx bytes with 0x%zx alignment requested\n",
             SanitizerToolName, size, alignment);
      return nullptr;
    }
    uptr original_size = size;
    // If alignment requirements are to be fulfilled by the frontend allocator
    // rather than by the primary or secondary, passing an alignment lower than
    // or equal to 8 will prevent any further rounding up, as well as the later
    // alignment check.
    if (alignment > 8)
      size = RoundUpTo(size, alignment);
    // The primary allocator should return a 2^x aligned allocation when
    // requested 2^x bytes, hence using the rounded up 'size' when being
    // serviced by the primary (this is no longer true when the primary is
    // using a non-fixed base address). The secondary takes care of the
    // alignment without such requirement, and allocating 'size' would use
    // extraneous memory, so we employ 'original_size'.
    void *res;
    if (primary_.CanAllocate(size, alignment))
      res = cache->Allocate(&primary_, primary_.ClassID(size));
    else
      res = secondary_.Allocate(&stats_, original_size, alignment);
    if (alignment > 8)
      CHECK_EQ(reinterpret_cast<uptr>(res) & (alignment - 1), 0);
    return res;
  }

s32 ReleaseToOSIntervalMs() const {
    return primary_.ReleaseToOSIntervalMs();
  }

void SetReleaseToOSIntervalMs(s32 release_to_os_interval_ms) {
    primary_.SetReleaseToOSIntervalMs(release_to_os_interval_ms);
  }

void ForceReleaseToOS() {
    primary_.ForceReleaseToOS();
  }

void Deallocate(AllocatorCache *cache, void *p) {
    if (!p) return;
    if (primary_.PointerIsMine(p))
      cache->Deallocate(&primary_, primary_.GetSizeClass(p), p);
    else
      secondary_.Deallocate(&stats_, p);
  }

void *Reallocate(AllocatorCache *cache, void *p, uptr new_size,
                   uptr alignment) {
    if (!p)
      return Allocate(cache, new_size, alignment);
    if (!new_size) {
      Deallocate(cache, p);
      return nullptr;
    }
    CHECK(PointerIsMine(p));
    uptr old_size = GetActuallyAllocatedSize(p);
    uptr memcpy_size = Min(new_size, old_size);
    void *new_p = Allocate(cache, new_size, alignment);
    if (new_p)
      internal_memcpy(new_p, p, memcpy_size);
    Deallocate(cache, p);
    return new_p;
  }

bool PointerIsMine(void *p) {
    if (primary_.PointerIsMine(p))
      return true;
    return secondary_.PointerIsMine(p);
  }

bool FromPrimary(void *p) {
    return primary_.PointerIsMine(p);
  }

void *GetMetaData(const void *p) {
    if (primary_.PointerIsMine(p))
      return primary_.GetMetaData(p);
    return secondary_.GetMetaData(p);
  }

void *GetBlockBegin(const void *p) {
    if (primary_.PointerIsMine(p))
      return primary_.GetBlockBegin(p);
    return secondary_.GetBlockBegin(p);
  }

// This function does the same as GetBlockBegin, but is much faster.
  // Must be called with the allocator locked.
  void *GetBlockBeginFastLocked(void *p) {
    if (primary_.PointerIsMine(p))
      return primary_.GetBlockBegin(p);
    return secondary_.GetBlockBeginFastLocked(p);
  }

uptr GetActuallyAllocatedSize(void *p) {
    if (primary_.PointerIsMine(p))
      return primary_.GetActuallyAllocatedSize(p);
    return secondary_.GetActuallyAllocatedSize(p);
  }

uptr TotalMemoryUsed() {
    return primary_.TotalMemoryUsed() + secondary_.TotalMemoryUsed();
  }

void TestOnlyUnmap() { primary_.TestOnlyUnmap(); }

void InitCache(AllocatorCache *cache) {
    cache->Init(&stats_);
  }

void DestroyCache(AllocatorCache *cache) {
    cache->Destroy(&primary_, &stats_);
  }

void SwallowCache(AllocatorCache *cache) {
    cache->Drain(&primary_);
  }

void GetStats(AllocatorStatCounters s) const {
    stats_.Get(s);
  }

void PrintStats() {
    primary_.PrintStats();
    secondary_.PrintStats();
  }

// ForceLock() and ForceUnlock() are needed to implement Darwin malloc zone
  // introspection API.
  void ForceLock() {
    primary_.ForceLock();
    secondary_.ForceLock();
  }

void ForceUnlock() {
    secondary_.ForceUnlock();
    primary_.ForceUnlock();
  }

// Iterate over all existing chunks.
  // The allocator must be locked when calling this function.
  void ForEachChunk(ForEachChunkCallback callback, void *arg) {
    primary_.ForEachChunk(callback, arg);
    secondary_.ForEachChunk(callback, arg);
  }

private:
  PrimaryAllocator primary_;
  SecondaryAllocator secondary_;
  AllocatorGlobalStats stats_;
};

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Editing: sanitizer_allocator_combined.h

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