1//===-- RegisterContextMach_i386.cpp --------------------------------------===//
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
15using namespace lldb;
16using namespace lldb_private;
17
18RegisterContextMach_i386::RegisterContextMach_i386(Thread &thread,
19                                                   uint32_t concrete_frame_idx)
20    : RegisterContextDarwin_i386(thread, concrete_frame_idx) {}
21
22RegisterContextMach_i386::~RegisterContextMach_i386() = default;
23
24int 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
29int 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
34int 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
39int 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
46int 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
53int 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
61