1 //===-- RegisterContextPOSIX_mips64.cpp -------------------------*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
13 #include "lldb/Target/Process.h"
14 #include "lldb/Target/Target.h"
15 #include "lldb/Target/Thread.h"
16 #include "lldb/Utility/DataBufferHeap.h"
17 #include "lldb/Utility/DataExtractor.h"
18 #include "lldb/Utility/Endian.h"
19 #include "lldb/Utility/RegisterValue.h"
20 #include "lldb/Utility/Scalar.h"
21 #include "llvm/Support/Compiler.h"
23 #include "RegisterContextPOSIX_mips64.h"
24 #include "RegisterContextFreeBSD_mips64.h"
25 #include "RegisterContextLinux_mips64.h"
26 #include "RegisterContextLinux_mips.h"
28 using namespace lldb_private;
31 bool RegisterContextPOSIX_mips64::IsGPR(unsigned reg) {
32 return reg < m_registers_count[gpr_registers_count]; // GPR's come first.
35 bool RegisterContextPOSIX_mips64::IsFPR(unsigned reg) {
36 int set = GetRegisterSetCount();
38 return reg < (m_registers_count[fpr_registers_count]
39 + m_registers_count[gpr_registers_count]);
43 RegisterContextPOSIX_mips64::RegisterContextPOSIX_mips64(
44 Thread &thread, uint32_t concrete_frame_idx,
45 RegisterInfoInterface *register_info)
46 : RegisterContext(thread, concrete_frame_idx) {
47 m_register_info_up.reset(register_info);
48 m_num_registers = GetRegisterCount();
49 int set = GetRegisterSetCount();
51 const RegisterSet *reg_set_ptr;
52 for(int i = 0; i < set; ++i) {
53 reg_set_ptr = GetRegisterSet(i);
54 m_registers_count[i] = reg_set_ptr->num_registers;
57 assert(m_num_registers ==
58 static_cast<uint32_t>(m_registers_count[gpr_registers_count] +
59 m_registers_count[fpr_registers_count] +
60 m_registers_count[msa_registers_count]));
63 RegisterContextPOSIX_mips64::~RegisterContextPOSIX_mips64() {}
65 void RegisterContextPOSIX_mips64::Invalidate() {}
67 void RegisterContextPOSIX_mips64::InvalidateAllRegisters() {}
69 unsigned RegisterContextPOSIX_mips64::GetRegisterOffset(unsigned reg) {
70 assert(reg < m_num_registers && "Invalid register number.");
71 return GetRegisterInfo()[reg].byte_offset;
74 unsigned RegisterContextPOSIX_mips64::GetRegisterSize(unsigned reg) {
75 assert(reg < m_num_registers && "Invalid register number.");
76 return GetRegisterInfo()[reg].byte_size;
79 size_t RegisterContextPOSIX_mips64::GetRegisterCount() {
80 return m_register_info_up->GetRegisterCount();
83 size_t RegisterContextPOSIX_mips64::GetGPRSize() {
84 return m_register_info_up->GetGPRSize();
87 const RegisterInfo *RegisterContextPOSIX_mips64::GetRegisterInfo() {
88 // Commonly, this method is overridden and g_register_infos is copied and
89 // specialized. So, use GetRegisterInfo() rather than g_register_infos in
91 return m_register_info_up->GetRegisterInfo();
95 RegisterContextPOSIX_mips64::GetRegisterInfoAtIndex(size_t reg) {
96 if (reg < m_num_registers)
97 return &GetRegisterInfo()[reg];
102 size_t RegisterContextPOSIX_mips64::GetRegisterSetCount() {
103 ArchSpec target_arch = m_register_info_up->GetTargetArchitecture();
104 switch (target_arch.GetTriple().getOS()) {
105 case llvm::Triple::Linux: {
106 if ((target_arch.GetMachine() == llvm::Triple::mipsel) ||
107 (target_arch.GetMachine() == llvm::Triple::mips)) {
108 const auto *context = static_cast<const RegisterContextLinux_mips *>(
109 m_register_info_up.get());
110 return context->GetRegisterSetCount();
112 const auto *context = static_cast<const RegisterContextLinux_mips64 *>(
113 m_register_info_up.get());
114 return context->GetRegisterSetCount();
117 const auto *context = static_cast<const RegisterContextFreeBSD_mips64 *>(
118 m_register_info_up.get());
119 return context->GetRegisterSetCount();
125 const RegisterSet *RegisterContextPOSIX_mips64::GetRegisterSet(size_t set) {
126 ArchSpec target_arch = m_register_info_up->GetTargetArchitecture();
127 switch (target_arch.GetTriple().getOS()) {
128 case llvm::Triple::Linux: {
129 if ((target_arch.GetMachine() == llvm::Triple::mipsel) ||
130 (target_arch.GetMachine() == llvm::Triple::mips)) {
131 const auto *context = static_cast<const RegisterContextLinux_mips *>(
132 m_register_info_up.get());
133 return context->GetRegisterSet(set);
135 const auto *context = static_cast<const RegisterContextLinux_mips64 *>(
136 m_register_info_up.get());
137 return context->GetRegisterSet(set);
140 const auto *context = static_cast<const RegisterContextFreeBSD_mips64 *>(
141 m_register_info_up.get());
142 return context->GetRegisterSet(set);
147 const char *RegisterContextPOSIX_mips64::GetRegisterName(unsigned reg) {
148 assert(reg < m_num_registers && "Invalid register offset.");
149 return GetRegisterInfo()[reg].name;
152 lldb::ByteOrder RegisterContextPOSIX_mips64::GetByteOrder() {
153 // Get the target process whose privileged thread was used for the register
155 lldb::ByteOrder byte_order = eByteOrderInvalid;
156 Process *process = CalculateProcess().get();
159 byte_order = process->GetByteOrder();
163 bool RegisterContextPOSIX_mips64::IsRegisterSetAvailable(size_t set_index) {
164 size_t num_sets = GetRegisterSetCount();
166 return (set_index < num_sets);
169 // Used when parsing DWARF and EH frame information and any other object file
170 // sections that contain register numbers in them.
171 uint32_t RegisterContextPOSIX_mips64::ConvertRegisterKindToRegisterNumber(
172 lldb::RegisterKind kind, uint32_t num) {
173 const uint32_t num_regs = m_num_registers;
175 assert(kind < kNumRegisterKinds);
176 for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx) {
177 const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg_idx);
179 if (reg_info->kinds[kind] == num)
183 return LLDB_INVALID_REGNUM;