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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_stoptheworld_mac.cpp

//===-- sanitizer_stoptheworld_mac.cpp ------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// See sanitizer_stoptheworld.h for details.
//
//===----------------------------------------------------------------------===//

#include "sanitizer_platform.h"

#if SANITIZER_MAC && (defined(__x86_64__) || defined(__aarch64__) || \
                      defined(__i386))

#include <mach/mach.h>
#include <mach/thread_info.h>
#include <pthread.h>

#include "sanitizer_stoptheworld.h"

namespace __sanitizer {
typedef struct {
  tid_t tid;
  thread_t thread;
} SuspendedThreadInfo;

class SuspendedThreadsListMac : public SuspendedThreadsList {
 public:
  SuspendedThreadsListMac() : threads_(1024) {}

tid_t GetThreadID(uptr index) const;
  thread_t GetThread(uptr index) const;
  uptr ThreadCount() const;
  bool ContainsThread(thread_t thread) const;
  void Append(thread_t thread);

PtraceRegistersStatus GetRegistersAndSP(uptr index, uptr *buffer,
                                          uptr *sp) const;
  uptr RegisterCount() const;

private:
  InternalMmapVector<SuspendedThreadInfo> threads_;
};

struct RunThreadArgs {
  StopTheWorldCallback callback;
  void *argument;
};

void *RunThread(void *arg) {
  struct RunThreadArgs *run_args = (struct RunThreadArgs *)arg;
  SuspendedThreadsListMac suspended_threads_list;

thread_array_t threads;
  mach_msg_type_number_t num_threads;
  kern_return_t err = task_threads(mach_task_self(), &threads, &num_threads);
  if (err != KERN_SUCCESS) {
    VReport(1, "Failed to get threads for task (errno %d).\n", err);
    return nullptr;
  }

thread_t thread_self = mach_thread_self();
  for (unsigned int i = 0; i < num_threads; ++i) {
    if (threads[i] == thread_self) continue;

thread_suspend(threads[i]);
    suspended_threads_list.Append(threads[i]);
  }

run_args->callback(suspended_threads_list, run_args->argument);

uptr num_suspended = suspended_threads_list.ThreadCount();
  for (unsigned int i = 0; i < num_suspended; ++i) {
    thread_resume(suspended_threads_list.GetThread(i));
  }
  return nullptr;
}

void StopTheWorld(StopTheWorldCallback callback, void *argument) {
  struct RunThreadArgs arg = {callback, argument};
  pthread_t run_thread = (pthread_t)internal_start_thread(RunThread, &arg);
  internal_join_thread(run_thread);
}

#if defined(__x86_64__)
typedef x86_thread_state64_t regs_struct;

#define SP_REG __rsp

#elif defined(__aarch64__)
typedef arm_thread_state64_t regs_struct;

# if __DARWIN_UNIX03
#  define SP_REG __sp
# else
#  define SP_REG sp
# endif

#elif defined(__i386)
typedef x86_thread_state32_t regs_struct;

#define SP_REG __esp

#else
#error "Unsupported architecture"
#endif

tid_t SuspendedThreadsListMac::GetThreadID(uptr index) const {
  CHECK_LT(index, threads_.size());
  return threads_[index].tid;
}

thread_t SuspendedThreadsListMac::GetThread(uptr index) const {
  CHECK_LT(index, threads_.size());
  return threads_[index].thread;
}

uptr SuspendedThreadsListMac::ThreadCount() const {
  return threads_.size();
}

bool SuspendedThreadsListMac::ContainsThread(thread_t thread) const {
  for (uptr i = 0; i < threads_.size(); i++) {
    if (threads_[i].thread == thread) return true;
  }
  return false;
}

void SuspendedThreadsListMac::Append(thread_t thread) {
  thread_identifier_info_data_t info;
  mach_msg_type_number_t info_count = THREAD_IDENTIFIER_INFO_COUNT;
  kern_return_t err = thread_info(thread, THREAD_IDENTIFIER_INFO,
                                  (thread_info_t)&info, &info_count);
  if (err != KERN_SUCCESS) {
    VReport(1, "Error - unable to get thread ident for a thread\n");
    return;
  }
  threads_.push_back({info.thread_id, thread});
}

PtraceRegistersStatus SuspendedThreadsListMac::GetRegistersAndSP(
    uptr index, uptr *buffer, uptr *sp) const {
  thread_t thread = GetThread(index);
  regs_struct regs;
  int err;
  mach_msg_type_number_t reg_count = MACHINE_THREAD_STATE_COUNT;
  err = thread_get_state(thread, MACHINE_THREAD_STATE, (thread_state_t)&regs,
                         &reg_count);
  if (err != KERN_SUCCESS) {
    VReport(1, "Error - unable to get registers for a thread\n");
    // KERN_INVALID_ARGUMENT indicates that either the flavor is invalid,
    // or the thread does not exist. The other possible error case,
    // MIG_ARRAY_TOO_LARGE, means that the state is too large, but it's
    // still safe to proceed.
    return err == KERN_INVALID_ARGUMENT ? REGISTERS_UNAVAILABLE_FATAL
                                        : REGISTERS_UNAVAILABLE;
  }

internal_memcpy(buffer, &regs, sizeof(regs));
#if defined(__aarch64__) && defined(arm_thread_state64_get_sp)
  *sp = arm_thread_state64_get_sp(regs);
#else
  *sp = regs.SP_REG;
#endif

// On x86_64 and aarch64, we must account for the stack redzone, which is 128
  // bytes.
  if (SANITIZER_WORDSIZE == 64) *sp -= 128;

return REGISTERS_AVAILABLE;
}

uptr SuspendedThreadsListMac::RegisterCount() const {
  return MACHINE_THREAD_STATE_COUNT;
}
} // namespace __sanitizer

#endif  // SANITIZER_MAC && (defined(__x86_64__) || defined(__aarch64__)) ||
        //                   defined(__i386))

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Editing: sanitizer_stoptheworld_mac.cpp

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