contrib/llvm-project/lldb/source/Plugins/Process/Utility/RegisterContextMach_i386.cpp

   1 //===-- RegisterContextMach_i386.cpp ----------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #if defined(__APPLE__)
  10
  11 #include <mach/thread_act.h>
  12
  13 #include "RegisterContextMach_i386.h"
  14
  15 using namespace lldb;
  16 using namespace lldb_private;
  17
  18 RegisterContextMach_i386::RegisterContextMach_i386(Thread &thread,
  19                                                    uint32_t concrete_frame_idx)
  20     : RegisterContextDarwin_i386(thread, concrete_frame_idx) {}
  21
  22 RegisterContextMach_i386::~RegisterContextMach_i386() {}
  23
  24 int RegisterContextMach_i386::DoReadGPR(lldb::tid_t tid, int flavor, GPR &gpr) {
  25   mach_msg_type_number_t count = GPRWordCount;
  26   return ::thread_get_state(tid, flavor, (thread_state_t)&gpr, &count);
  27 }
  28
  29 int RegisterContextMach_i386::DoReadFPU(lldb::tid_t tid, int flavor, FPU &fpu) {
  30   mach_msg_type_number_t count = FPUWordCount;
  31   return ::thread_get_state(tid, flavor, (thread_state_t)&fpu, &count);
  32 }
  33
  34 int RegisterContextMach_i386::DoReadEXC(lldb::tid_t tid, int flavor, EXC &exc) {
  35   mach_msg_type_number_t count = EXCWordCount;
  36   return ::thread_get_state(tid, flavor, (thread_state_t)&exc, &count);
  37 }
  38
  39 int RegisterContextMach_i386::DoWriteGPR(lldb::tid_t tid, int flavor,
  40                                          const GPR &gpr) {
  41   return ::thread_set_state(
  42       tid, flavor, reinterpret_cast<thread_state_t>(const_cast<GPR *>(&gpr)),
  43       GPRWordCount);
  44 }
  45
  46 int RegisterContextMach_i386::DoWriteFPU(lldb::tid_t tid, int flavor,
  47                                          const FPU &fpu) {
  48   return ::thread_set_state(
  49       tid, flavor, reinterpret_cast<thread_state_t>(const_cast<FPU *>(&fpu)),
  50       FPUWordCount);
  51 }
  52
  53 int RegisterContextMach_i386::DoWriteEXC(lldb::tid_t tid, int flavor,
  54                                          const EXC &exc) {
  55   return ::thread_set_state(
  56       tid, flavor, reinterpret_cast<thread_state_t>(const_cast<EXC *>(&exc)),
  57       EXCWordCount);
  58 }
  59
  60 #endif