lldb/source/Plugins/Process/Utility/RegisterContextMach_arm.cpp

   1 //===-- RegisterContextMach_arm.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 "RegisterContextMach_arm.h"
  12
  13 #include <mach/mach_types.h>
  14 #include <mach/thread_act.h>
  15
  16
  17 using namespace lldb;
  18 using namespace lldb_private;
  19
  20 RegisterContextMach_arm::RegisterContextMach_arm(Thread &thread,
  21                                                  uint32_t concrete_frame_idx)
  22     : RegisterContextDarwin_arm(thread, concrete_frame_idx) {}
  23
  24 RegisterContextMach_arm::~RegisterContextMach_arm() = default;
  25
  26 int RegisterContextMach_arm::DoReadGPR(lldb::tid_t tid, int flavor, GPR &gpr) {
  27   mach_msg_type_number_t count = GPRWordCount;
  28   return ::thread_get_state(tid, flavor, (thread_state_t)&gpr, &count);
  29 }
  30
  31 int RegisterContextMach_arm::DoReadFPU(lldb::tid_t tid, int flavor, FPU &fpu) {
  32   mach_msg_type_number_t count = FPUWordCount;
  33   return ::thread_get_state(tid, flavor, (thread_state_t)&fpu, &count);
  34 }
  35
  36 int RegisterContextMach_arm::DoReadEXC(lldb::tid_t tid, int flavor, EXC &exc) {
  37   mach_msg_type_number_t count = EXCWordCount;
  38   return ::thread_get_state(tid, flavor, (thread_state_t)&exc, &count);
  39 }
  40
  41 int RegisterContextMach_arm::DoReadDBG(lldb::tid_t tid, int flavor, DBG &dbg) {
  42   mach_msg_type_number_t count = DBGWordCount;
  43   return ::thread_get_state(tid, flavor, (thread_state_t)&dbg, &count);
  44 }
  45
  46 int RegisterContextMach_arm::DoWriteGPR(lldb::tid_t tid, int flavor,
  47                                         const GPR &gpr) {
  48   return ::thread_set_state(
  49       tid, flavor, reinterpret_cast<thread_state_t>(const_cast<GPR *>(&gpr)),
  50       GPRWordCount);
  51 }
  52
  53 int RegisterContextMach_arm::DoWriteFPU(lldb::tid_t tid, int flavor,
  54                                         const FPU &fpu) {
  55   return ::thread_set_state(
  56       tid, flavor, reinterpret_cast<thread_state_t>(const_cast<FPU *>(&fpu)),
  57       FPUWordCount);
  58 }
  59
  60 int RegisterContextMach_arm::DoWriteEXC(lldb::tid_t tid, int flavor,
  61                                         const EXC &exc) {
  62   return ::thread_set_state(
  63       tid, flavor, reinterpret_cast<thread_state_t>(const_cast<EXC *>(&exc)),
  64       EXCWordCount);
  65 }
  66
  67 int RegisterContextMach_arm::DoWriteDBG(lldb::tid_t tid, int flavor,
  68                                         const DBG &dbg) {
  69   return ::thread_set_state(
  70       tid, flavor, reinterpret_cast<thread_state_t>(const_cast<DBG *>(&dbg)),
  71       DBGWordCount);
  72 }
  73
  74 #endif