xref: /openbsd-src/gnu/llvm/lldb/source/Plugins/Process/Utility/RegisterContextMach_x86_64.cpp (revision be691f3bb6417f04a68938fadbcaee2d5795e764)

//===-- RegisterContextMach_x86_64.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
//
//===----------------------------------------------------------------------===//

#if defined(__APPLE__)

#include <mach/thread_act.h>

#include "RegisterContextMach_x86_64.h"

using namespace lldb;
using namespace lldb_private;

RegisterContextMach_x86_64::RegisterContextMach_x86_64(
    Thread &thread, uint32_t concrete_frame_idx)
    : RegisterContextDarwin_x86_64(thread, concrete_frame_idx) {}

RegisterContextMach_x86_64::~RegisterContextMach_x86_64() = default;

int RegisterContextMach_x86_64::DoReadGPR(lldb::tid_t tid, int flavor,
                                          GPR &gpr) {
  mach_msg_type_number_t count = GPRWordCount;
  return ::thread_get_state(tid, flavor, (thread_state_t)&gpr, &count);
}

int RegisterContextMach_x86_64::DoReadFPU(lldb::tid_t tid, int flavor,
                                          FPU &fpu) {
  mach_msg_type_number_t count = FPUWordCount;
  return ::thread_get_state(tid, flavor, (thread_state_t)&fpu, &count);
}

int RegisterContextMach_x86_64::DoReadEXC(lldb::tid_t tid, int flavor,
                                          EXC &exc) {
  mach_msg_type_number_t count = EXCWordCount;
  return ::thread_get_state(tid, flavor, (thread_state_t)&exc, &count);
}

int RegisterContextMach_x86_64::DoWriteGPR(lldb::tid_t tid, int flavor,
                                           const GPR &gpr) {
  return ::thread_set_state(
      tid, flavor, reinterpret_cast<thread_state_t>(const_cast<GPR *>(&gpr)),
      GPRWordCount);
}

int RegisterContextMach_x86_64::DoWriteFPU(lldb::tid_t tid, int flavor,
                                           const FPU &fpu) {
  return ::thread_set_state(
      tid, flavor, reinterpret_cast<thread_state_t>(const_cast<FPU *>(&fpu)),
      FPUWordCount);
}

int RegisterContextMach_x86_64::DoWriteEXC(lldb::tid_t tid, int flavor,
                                           const EXC &exc) {
  return ::thread_set_state(
      tid, flavor, reinterpret_cast<thread_state_t>(const_cast<EXC *>(&exc)),
      EXCWordCount);
}

#endif