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 == m_registers_count[gpr_registers_count] +
59 m_registers_count[fpr_registers_count] +
60 m_registers_count[msa_registers_count]);
62 // elf-core yet to support ReadFPR()
63 ProcessSP base = CalculateProcess();
64 if (base.get()->GetPluginName() == ProcessElfCore::GetPluginNameStatic())
68 RegisterContextPOSIX_mips64::~RegisterContextPOSIX_mips64() {}
70 void RegisterContextPOSIX_mips64::Invalidate() {}
72 void RegisterContextPOSIX_mips64::InvalidateAllRegisters() {}
74 unsigned RegisterContextPOSIX_mips64::GetRegisterOffset(unsigned reg) {
75 assert(reg < m_num_registers && "Invalid register number.");
76 return GetRegisterInfo()[reg].byte_offset;
79 unsigned RegisterContextPOSIX_mips64::GetRegisterSize(unsigned reg) {
80 assert(reg < m_num_registers && "Invalid register number.");
81 return GetRegisterInfo()[reg].byte_size;
84 size_t RegisterContextPOSIX_mips64::GetRegisterCount() {
85 return m_register_info_ap->GetRegisterCount();
88 size_t RegisterContextPOSIX_mips64::GetGPRSize() {
89 return m_register_info_ap->GetGPRSize();
92 const RegisterInfo *RegisterContextPOSIX_mips64::GetRegisterInfo() {
93 // Commonly, this method is overridden and g_register_infos is copied and
95 // So, use GetRegisterInfo() rather than g_register_infos in this scope.
96 return m_register_info_ap->GetRegisterInfo();
100 RegisterContextPOSIX_mips64::GetRegisterInfoAtIndex(size_t reg) {
101 if (reg < m_num_registers)
102 return &GetRegisterInfo()[reg];
107 size_t RegisterContextPOSIX_mips64::GetRegisterSetCount() {
108 ArchSpec target_arch = m_register_info_ap->GetTargetArchitecture();
109 switch (target_arch.GetTriple().getOS()) {
110 case llvm::Triple::Linux: {
111 if ((target_arch.GetMachine() == llvm::Triple::mipsel) ||
112 (target_arch.GetMachine() == llvm::Triple::mips)) {
113 const auto *context = static_cast<const RegisterContextLinux_mips *>
114 (m_register_info_ap.get());
115 return context->GetRegisterSetCount();
117 const auto *context = static_cast<const RegisterContextLinux_mips64 *>
118 (m_register_info_ap.get());
119 return context->GetRegisterSetCount();
122 const auto *context = static_cast<const RegisterContextFreeBSD_mips64 *>
123 (m_register_info_ap.get());
124 return context->GetRegisterSetCount();
130 const RegisterSet *RegisterContextPOSIX_mips64::GetRegisterSet(size_t set) {
131 ArchSpec target_arch = m_register_info_ap->GetTargetArchitecture();
132 switch (target_arch.GetTriple().getOS()) {
133 case llvm::Triple::Linux: {
134 if ((target_arch.GetMachine() == llvm::Triple::mipsel) ||
135 (target_arch.GetMachine() == llvm::Triple::mips)) {
136 const auto *context = static_cast<const RegisterContextLinux_mips *>
137 (m_register_info_ap.get());
138 return context->GetRegisterSet(set);
140 const auto *context = static_cast<const RegisterContextLinux_mips64 *>
141 (m_register_info_ap.get());
142 return context->GetRegisterSet(set);
145 const auto *context = static_cast<const RegisterContextFreeBSD_mips64 *>
146 (m_register_info_ap.get());
147 return context->GetRegisterSet(set);
152 const char *RegisterContextPOSIX_mips64::GetRegisterName(unsigned reg) {
153 assert(reg < m_num_registers && "Invalid register offset.");
154 return GetRegisterInfo()[reg].name;
157 lldb::ByteOrder RegisterContextPOSIX_mips64::GetByteOrder() {
158 // Get the target process whose privileged thread was used for the register
160 lldb::ByteOrder byte_order = eByteOrderInvalid;
161 Process *process = CalculateProcess().get();
164 byte_order = process->GetByteOrder();
168 bool RegisterContextPOSIX_mips64::IsRegisterSetAvailable(size_t set_index) {
169 size_t num_sets = GetRegisterSetCount();
171 return (set_index < num_sets);
174 // Used when parsing DWARF and EH frame information and any other
175 // object file sections that contain register numbers in them.
176 uint32_t RegisterContextPOSIX_mips64::ConvertRegisterKindToRegisterNumber(
177 lldb::RegisterKind kind, uint32_t num) {
178 const uint32_t num_regs = m_num_registers;
180 assert(kind < kNumRegisterKinds);
181 for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx) {
182 const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg_idx);
184 if (reg_info->kinds[kind] == num)
188 return LLDB_INVALID_REGNUM;