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/DataBufferHeap.h"
15 #include "lldb/Core/DataExtractor.h"
16 #include "lldb/Core/RegisterValue.h"
17 #include "lldb/Core/Scalar.h"
18 #include "lldb/Host/Endian.h"
19 #include "lldb/Target/Target.h"
20 #include "lldb/Target/Thread.h"
21 #include "llvm/Support/Compiler.h"
23 #include "Plugins/Process/elf-core/ProcessElfCore.h"
24 #include "RegisterContextPOSIX_mips64.h"
26 using namespace lldb_private;
29 static const uint32_t g_gpr_regnums[] = {
30 gpr_zero_mips64, gpr_r1_mips64, gpr_r2_mips64, gpr_r3_mips64,
31 gpr_r4_mips64, gpr_r5_mips64, gpr_r6_mips64, gpr_r7_mips64,
32 gpr_r8_mips64, gpr_r9_mips64, gpr_r10_mips64, gpr_r11_mips64,
33 gpr_r12_mips64, gpr_r13_mips64, gpr_r14_mips64, gpr_r15_mips64,
34 gpr_r16_mips64, gpr_r17_mips64, gpr_r18_mips64, gpr_r19_mips64,
35 gpr_r20_mips64, gpr_r21_mips64, gpr_r22_mips64, gpr_r23_mips64,
36 gpr_r24_mips64, gpr_r25_mips64, gpr_r26_mips64, gpr_r27_mips64,
37 gpr_gp_mips64, gpr_sp_mips64, gpr_r30_mips64, gpr_ra_mips64,
38 gpr_sr_mips64, gpr_mullo_mips64, gpr_mulhi_mips64, gpr_badvaddr_mips64,
39 gpr_cause_mips64, gpr_pc_mips64, gpr_ic_mips64, gpr_dummy_mips64};
41 // Number of register sets provided by this context.
42 enum { k_num_register_sets = 1 };
44 static const RegisterSet g_reg_sets_mips64[k_num_register_sets] = {
45 {"General Purpose Registers", "gpr", k_num_gpr_registers_mips64,
49 bool RegisterContextPOSIX_mips64::IsGPR(unsigned reg) {
50 return reg <= k_num_gpr_registers_mips64; // GPR's come first.
53 bool RegisterContextPOSIX_mips64::IsFPR(unsigned reg) {
58 RegisterContextPOSIX_mips64::RegisterContextPOSIX_mips64(
59 Thread &thread, uint32_t concrete_frame_idx,
60 RegisterInfoInterface *register_info)
61 : RegisterContext(thread, concrete_frame_idx) {
62 m_register_info_ap.reset(register_info);
64 // elf-core yet to support ReadFPR()
65 ProcessSP base = CalculateProcess();
66 if (base.get()->GetPluginName() == ProcessElfCore::GetPluginNameStatic())
70 RegisterContextPOSIX_mips64::~RegisterContextPOSIX_mips64() {}
72 void RegisterContextPOSIX_mips64::Invalidate() {}
74 void RegisterContextPOSIX_mips64::InvalidateAllRegisters() {}
76 unsigned RegisterContextPOSIX_mips64::GetRegisterOffset(unsigned reg) {
77 assert(reg < k_num_registers_mips64 && "Invalid register number.");
78 return GetRegisterInfo()[reg].byte_offset;
81 unsigned RegisterContextPOSIX_mips64::GetRegisterSize(unsigned reg) {
82 assert(reg < k_num_registers_mips64 && "Invalid register number.");
83 return GetRegisterInfo()[reg].byte_size;
86 size_t RegisterContextPOSIX_mips64::GetRegisterCount() {
87 size_t num_registers = k_num_registers_mips64;
91 size_t RegisterContextPOSIX_mips64::GetGPRSize() {
92 return m_register_info_ap->GetGPRSize();
95 const RegisterInfo *RegisterContextPOSIX_mips64::GetRegisterInfo() {
96 // Commonly, this method is overridden and g_register_infos is copied and
98 // So, use GetRegisterInfo() rather than g_register_infos in this scope.
99 return m_register_info_ap->GetRegisterInfo();
103 RegisterContextPOSIX_mips64::GetRegisterInfoAtIndex(size_t reg) {
104 if (reg < k_num_registers_mips64)
105 return &GetRegisterInfo()[reg];
110 size_t RegisterContextPOSIX_mips64::GetRegisterSetCount() {
112 for (size_t set = 0; set < k_num_register_sets; ++set) {
113 if (IsRegisterSetAvailable(set))
120 const RegisterSet *RegisterContextPOSIX_mips64::GetRegisterSet(size_t set) {
121 if (IsRegisterSetAvailable(set))
122 return &g_reg_sets_mips64[set];
127 const char *RegisterContextPOSIX_mips64::GetRegisterName(unsigned reg) {
128 assert(reg < k_num_registers_mips64 && "Invalid register offset.");
129 return GetRegisterInfo()[reg].name;
132 lldb::ByteOrder RegisterContextPOSIX_mips64::GetByteOrder() {
133 // Get the target process whose privileged thread was used for the register
135 lldb::ByteOrder byte_order = eByteOrderInvalid;
136 Process *process = CalculateProcess().get();
139 byte_order = process->GetByteOrder();
143 bool RegisterContextPOSIX_mips64::IsRegisterSetAvailable(size_t set_index) {
144 size_t num_sets = k_num_register_sets;
146 return (set_index < num_sets);
149 // Used when parsing DWARF and EH frame information and any other
150 // object file sections that contain register numbers in them.
151 uint32_t RegisterContextPOSIX_mips64::ConvertRegisterKindToRegisterNumber(
152 lldb::RegisterKind kind, uint32_t num) {
153 const uint32_t num_regs = GetRegisterCount();
155 assert(kind < kNumRegisterKinds);
156 for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx) {
157 const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg_idx);
159 if (reg_info->kinds[kind] == num)
163 return LLDB_INVALID_REGNUM;