1 //===-- RegisterContextPOSIX_mips64.cpp -------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
14 #include "lldb/Core/RegisterValue.h"
15 #include "lldb/Core/Scalar.h"
16 #include "lldb/Target/Target.h"
17 #include "lldb/Target/Thread.h"
18 #include "lldb/Utility/DataBufferHeap.h"
19 #include "lldb/Utility/DataExtractor.h"
20 #include "lldb/Utility/Endian.h"
21 #include "llvm/Support/Compiler.h"
23 #include "Plugins/Process/elf-core/ProcessElfCore.h"
24 #include "RegisterContextPOSIX_mips64.h"
25 #include "RegisterContextFreeBSD_mips64.h"
26 #include "RegisterContextLinux_mips64.h"
27 #include "RegisterContextLinux_mips.h"
29 using namespace lldb_private;
32 bool RegisterContextPOSIX_mips64::IsGPR(unsigned reg) {
33 return reg < m_registers_count[gpr_registers_count]; // GPR's come first.
36 bool RegisterContextPOSIX_mips64::IsFPR(unsigned reg) {
37 int set = GetRegisterSetCount();
39 return reg < (m_registers_count[fpr_registers_count]
40 + m_registers_count[gpr_registers_count]);
44 RegisterContextPOSIX_mips64::RegisterContextPOSIX_mips64(
45 Thread &thread, uint32_t concrete_frame_idx,
46 RegisterInfoInterface *register_info)
47 : RegisterContext(thread, concrete_frame_idx) {
48 m_register_info_ap.reset(register_info);
49 m_num_registers = GetRegisterCount();
50 int set = GetRegisterSetCount();
52 const RegisterSet *reg_set_ptr;
53 for(int i = 0; i < set; ++i) {
54 reg_set_ptr = GetRegisterSet(i);
55 m_registers_count[i] = reg_set_ptr->num_registers;
58 assert(m_num_registers ==
59 static_cast<uint32_t>(m_registers_count[gpr_registers_count] +
60 m_registers_count[fpr_registers_count] +
61 m_registers_count[msa_registers_count]));
63 // elf-core yet to support ReadFPR()
64 ProcessSP base = CalculateProcess();
65 if (base.get()->GetPluginName() == ProcessElfCore::GetPluginNameStatic())
69 RegisterContextPOSIX_mips64::~RegisterContextPOSIX_mips64() {}
71 void RegisterContextPOSIX_mips64::Invalidate() {}
73 void RegisterContextPOSIX_mips64::InvalidateAllRegisters() {}
75 unsigned RegisterContextPOSIX_mips64::GetRegisterOffset(unsigned reg) {
76 assert(reg < m_num_registers && "Invalid register number.");
77 return GetRegisterInfo()[reg].byte_offset;
80 unsigned RegisterContextPOSIX_mips64::GetRegisterSize(unsigned reg) {
81 assert(reg < m_num_registers && "Invalid register number.");
82 return GetRegisterInfo()[reg].byte_size;
85 size_t RegisterContextPOSIX_mips64::GetRegisterCount() {
86 return m_register_info_ap->GetRegisterCount();
89 size_t RegisterContextPOSIX_mips64::GetGPRSize() {
90 return m_register_info_ap->GetGPRSize();
93 const RegisterInfo *RegisterContextPOSIX_mips64::GetRegisterInfo() {
94 // Commonly, this method is overridden and g_register_infos is copied and
96 // So, use GetRegisterInfo() rather than g_register_infos in this scope.
97 return m_register_info_ap->GetRegisterInfo();
101 RegisterContextPOSIX_mips64::GetRegisterInfoAtIndex(size_t reg) {
102 if (reg < m_num_registers)
103 return &GetRegisterInfo()[reg];
108 size_t RegisterContextPOSIX_mips64::GetRegisterSetCount() {
109 ArchSpec target_arch = m_register_info_ap->GetTargetArchitecture();
110 switch (target_arch.GetTriple().getOS()) {
111 case llvm::Triple::Linux: {
112 if ((target_arch.GetMachine() == llvm::Triple::mipsel) ||
113 (target_arch.GetMachine() == llvm::Triple::mips)) {
114 const auto *context = static_cast<const RegisterContextLinux_mips *>
115 (m_register_info_ap.get());
116 return context->GetRegisterSetCount();
118 const auto *context = static_cast<const RegisterContextLinux_mips64 *>
119 (m_register_info_ap.get());
120 return context->GetRegisterSetCount();
123 const auto *context = static_cast<const RegisterContextFreeBSD_mips64 *>
124 (m_register_info_ap.get());
125 return context->GetRegisterSetCount();
131 const RegisterSet *RegisterContextPOSIX_mips64::GetRegisterSet(size_t set) {
132 ArchSpec target_arch = m_register_info_ap->GetTargetArchitecture();
133 switch (target_arch.GetTriple().getOS()) {
134 case llvm::Triple::Linux: {
135 if ((target_arch.GetMachine() == llvm::Triple::mipsel) ||
136 (target_arch.GetMachine() == llvm::Triple::mips)) {
137 const auto *context = static_cast<const RegisterContextLinux_mips *>
138 (m_register_info_ap.get());
139 return context->GetRegisterSet(set);
141 const auto *context = static_cast<const RegisterContextLinux_mips64 *>
142 (m_register_info_ap.get());
143 return context->GetRegisterSet(set);
146 const auto *context = static_cast<const RegisterContextFreeBSD_mips64 *>
147 (m_register_info_ap.get());
148 return context->GetRegisterSet(set);
153 const char *RegisterContextPOSIX_mips64::GetRegisterName(unsigned reg) {
154 assert(reg < m_num_registers && "Invalid register offset.");
155 return GetRegisterInfo()[reg].name;
158 lldb::ByteOrder RegisterContextPOSIX_mips64::GetByteOrder() {
159 // Get the target process whose privileged thread was used for the register
161 lldb::ByteOrder byte_order = eByteOrderInvalid;
162 Process *process = CalculateProcess().get();
165 byte_order = process->GetByteOrder();
169 bool RegisterContextPOSIX_mips64::IsRegisterSetAvailable(size_t set_index) {
170 size_t num_sets = GetRegisterSetCount();
172 return (set_index < num_sets);
175 // Used when parsing DWARF and EH frame information and any other
176 // object file sections that contain register numbers in them.
177 uint32_t RegisterContextPOSIX_mips64::ConvertRegisterKindToRegisterNumber(
178 lldb::RegisterKind kind, uint32_t num) {
179 const uint32_t num_regs = m_num_registers;
181 assert(kind < kNumRegisterKinds);
182 for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx) {
183 const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg_idx);
185 if (reg_info->kinds[kind] == num)
189 return LLDB_INVALID_REGNUM;