1 //===-- RegisterContextMach_arm.cpp -----------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #if defined(__APPLE__)
11 
12 #include "RegisterContextMach_arm.h"
13 
14 #include <mach/mach_types.h>
15 #include <mach/thread_act.h>
16 
17 
18 using namespace lldb;
19 using namespace lldb_private;
20 
21 RegisterContextMach_arm::RegisterContextMach_arm(Thread &thread,
22                                                  uint32_t concrete_frame_idx)
23     : RegisterContextDarwin_arm(thread, concrete_frame_idx) {}
24 
25 RegisterContextMach_arm::~RegisterContextMach_arm() {}
26 
27 int RegisterContextMach_arm::DoReadGPR(lldb::tid_t tid, int flavor, GPR &gpr) {
28   mach_msg_type_number_t count = GPRWordCount;
29   return ::thread_get_state(tid, flavor, (thread_state_t)&gpr, &count);
30 }
31 
32 int RegisterContextMach_arm::DoReadFPU(lldb::tid_t tid, int flavor, FPU &fpu) {
33   mach_msg_type_number_t count = FPUWordCount;
34   return ::thread_get_state(tid, flavor, (thread_state_t)&fpu, &count);
35 }
36 
37 int RegisterContextMach_arm::DoReadEXC(lldb::tid_t tid, int flavor, EXC &exc) {
38   mach_msg_type_number_t count = EXCWordCount;
39   return ::thread_get_state(tid, flavor, (thread_state_t)&exc, &count);
40 }
41 
42 int RegisterContextMach_arm::DoReadDBG(lldb::tid_t tid, int flavor, DBG &dbg) {
43   mach_msg_type_number_t count = DBGWordCount;
44   return ::thread_get_state(tid, flavor, (thread_state_t)&dbg, &count);
45 }
46 
47 int RegisterContextMach_arm::DoWriteGPR(lldb::tid_t tid, int flavor,
48                                         const GPR &gpr) {
49   return ::thread_set_state(
50       tid, flavor, reinterpret_cast<thread_state_t>(const_cast<GPR *>(&gpr)),
51       GPRWordCount);
52 }
53 
54 int RegisterContextMach_arm::DoWriteFPU(lldb::tid_t tid, int flavor,
55                                         const FPU &fpu) {
56   return ::thread_set_state(
57       tid, flavor, reinterpret_cast<thread_state_t>(const_cast<FPU *>(&fpu)),
58       FPUWordCount);
59 }
60 
61 int RegisterContextMach_arm::DoWriteEXC(lldb::tid_t tid, int flavor,
62                                         const EXC &exc) {
63   return ::thread_set_state(
64       tid, flavor, reinterpret_cast<thread_state_t>(const_cast<EXC *>(&exc)),
65       EXCWordCount);
66 }
67 
68 int RegisterContextMach_arm::DoWriteDBG(lldb::tid_t tid, int flavor,
69                                         const DBG &dbg) {
70   return ::thread_set_state(
71       tid, flavor, reinterpret_cast<thread_state_t>(const_cast<DBG *>(&dbg)),
72       DBGWordCount);
73 }
74 
75 #endif
76