File Manager

003 File Manager

Current Path: /usr/src/contrib/llvm-project/compiler-rt/lib/sanitizer_common

usr / src / contrib / llvm-project / compiler-rt / lib / sanitizer_common /

📁 ..
📄 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_ring_buffer.h

//===-- sanitizer_ring_buffer.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
//
//===----------------------------------------------------------------------===//
//
// Simple ring buffer.
//
//===----------------------------------------------------------------------===//
#ifndef SANITIZER_RING_BUFFER_H
#define SANITIZER_RING_BUFFER_H

#include "sanitizer_common.h"

namespace __sanitizer {
// RingBuffer<T>: fixed-size ring buffer optimized for speed of push().
// T should be a POD type and sizeof(T) should be divisible by sizeof(void*).
// At creation, all elements are zero.
template<class T>
class RingBuffer {
 public:
  COMPILER_CHECK(sizeof(T) % sizeof(void *) == 0);
  static RingBuffer *New(uptr Size) {
    void *Ptr = MmapOrDie(SizeInBytes(Size), "RingBuffer");
    RingBuffer *RB = reinterpret_cast<RingBuffer*>(Ptr);
    uptr End = reinterpret_cast<uptr>(Ptr) + SizeInBytes(Size);
    RB->last_ = RB->next_ = reinterpret_cast<T*>(End - sizeof(T));
    return RB;
  }
  void Delete() {
    UnmapOrDie(this, SizeInBytes(size()));
  }
  uptr size() const {
    return last_ + 1 -
           reinterpret_cast<T *>(reinterpret_cast<uptr>(this) +
                                 2 * sizeof(T *));
  }

static uptr SizeInBytes(uptr Size) {
    return Size * sizeof(T) + 2 * sizeof(T*);
  }

uptr SizeInBytes() { return SizeInBytes(size()); }

void push(T t) {
    *next_ = t;
    next_--;
    // The condition below works only if sizeof(T) is divisible by sizeof(T*).
    if (next_ <= reinterpret_cast<T*>(&next_))
      next_ = last_;
  }

T operator[](uptr Idx) const {
    CHECK_LT(Idx, size());
    sptr IdxNext = Idx + 1;
    if (IdxNext > last_ - next_)
      IdxNext -= size();
    return next_[IdxNext];
  }

private:
  RingBuffer() {}
  ~RingBuffer() {}
  RingBuffer(const RingBuffer&) = delete;

// Data layout:
  // LNDDDDDDDD
  // D: data elements.
  // L: last_, always points to the last data element.
  // N: next_, initially equals to last_, is decremented on every push,
  //    wraps around if it's less or equal than its own address.
  T *last_;
  T *next_;
  T data_[1];  // flexible array.
};

// A ring buffer with externally provided storage that encodes its state in 8
// bytes. Has significant constraints on size and alignment of storage.
// See a comment in hwasan/hwasan_thread_list.h for the motivation behind this.
#if SANITIZER_WORDSIZE == 64
template <class T>
class CompactRingBuffer {
  // Top byte of long_ stores the buffer size in pages.
  // Lower bytes store the address of the next buffer element.
  static constexpr int kPageSizeBits = 12;
  static constexpr int kSizeShift = 56;
  static constexpr uptr kNextMask = (1ULL << kSizeShift) - 1;

uptr GetStorageSize() const { return (long_ >> kSizeShift) << kPageSizeBits; }

void Init(void *storage, uptr size) {
    CHECK_EQ(sizeof(CompactRingBuffer<T>), sizeof(void *));
    CHECK(IsPowerOfTwo(size));
    CHECK_GE(size, 1 << kPageSizeBits);
    CHECK_LE(size, 128 << kPageSizeBits);
    CHECK_EQ(size % 4096, 0);
    CHECK_EQ(size % sizeof(T), 0);
    CHECK_EQ((uptr)storage % (size * 2), 0);
    long_ = (uptr)storage | ((size >> kPageSizeBits) << kSizeShift);
  }

void SetNext(const T *next) {
    long_ = (long_ & ~kNextMask) | (uptr)next;
  }

public:
  CompactRingBuffer(void *storage, uptr size) {
    Init(storage, size);
  }

// A copy constructor of sorts.
  CompactRingBuffer(const CompactRingBuffer &other, void *storage) {
    uptr size = other.GetStorageSize();
    internal_memcpy(storage, other.StartOfStorage(), size);
    Init(storage, size);
    uptr Idx = other.Next() - (const T *)other.StartOfStorage();
    SetNext((const T *)storage + Idx);
  }

T *Next() const { return (T *)(long_ & kNextMask); }

void *StartOfStorage() const {
    return (void *)((uptr)Next() & ~(GetStorageSize() - 1));
  }

void *EndOfStorage() const {
    return (void *)((uptr)StartOfStorage() + GetStorageSize());
  }

uptr size() const { return GetStorageSize() / sizeof(T); }

void push(T t) {
    T *next = Next();
    *next = t;
    next++;
    next = (T *)((uptr)next & ~GetStorageSize());
    SetNext(next);
  }

const T &operator[](uptr Idx) const {
    CHECK_LT(Idx, size());
    const T *Begin = (const T *)StartOfStorage();
    sptr StorageIdx = Next() - Begin;
    StorageIdx -= (sptr)(Idx + 1);
    if (StorageIdx < 0)
      StorageIdx += size();
    return Begin[StorageIdx];
  }

public:
  ~CompactRingBuffer() {}
  CompactRingBuffer(const CompactRingBuffer &) = delete;

uptr long_;
};
#endif
}  // namespace __sanitizer

#endif  // SANITIZER_RING_BUFFER_H

003 File Manager

Editing: sanitizer_ring_buffer.h

Upload File

Create Folder