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

//===-- RegisterContextMach_arm.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 "RegisterContextMach_arm.h"

#include <mach/mach_types.h>
#include <mach/thread_act.h>


using namespace lldb;
using namespace lldb_private;

RegisterContextMach_arm::RegisterContextMach_arm(Thread &thread,
                                                 uint32_t concrete_frame_idx)
    : RegisterContextDarwin_arm(thread, concrete_frame_idx) {}

RegisterContextMach_arm::~RegisterContextMach_arm() = default;

int RegisterContextMach_arm::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_arm::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_arm::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_arm::DoReadDBG(lldb::tid_t tid, int flavor, DBG &dbg) {
  mach_msg_type_number_t count = DBGWordCount;
  return ::thread_get_state(tid, flavor, (thread_state_t)&dbg, &count);
}

int RegisterContextMach_arm::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_arm::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_arm::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);
}

int RegisterContextMach_arm::DoWriteDBG(lldb::tid_t tid, int flavor,
                                        const DBG &dbg) {
  return ::thread_set_state(
      tid, flavor, reinterpret_cast<thread_state_t>(const_cast<DBG *>(&dbg)),
      DBGWordCount);
}

#endif