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/Target/Target.h"
19 #include "lldb/Target/Thread.h"
20 #include "lldb/Host/Endian.h"
21 #include "llvm/Support/Compiler.h"
23 #include "RegisterContextPOSIX_mips64.h"
24 #include "Plugins/Process/elf-core/ProcessElfCore.h"
26 using namespace lldb_private;
30 uint32_t g_gpr_regnums[] =
74 // Number of register sets provided by this context.
77 k_num_register_sets = 1
80 static const RegisterSet
81 g_reg_sets_mips64[k_num_register_sets] =
83 { "General Purpose Registers", "gpr", k_num_gpr_registers_mips64, g_gpr_regnums },
86 bool RegisterContextPOSIX_mips64::IsGPR(unsigned reg)
88 return reg <= k_num_gpr_registers_mips64; // GPR's come first.
92 RegisterContextPOSIX_mips64::IsFPR(unsigned reg)
98 RegisterContextPOSIX_mips64::RegisterContextPOSIX_mips64(Thread &thread,
99 uint32_t concrete_frame_idx,
100 RegisterInfoInterface *register_info)
101 : RegisterContext(thread, concrete_frame_idx)
103 m_register_info_ap.reset(register_info);
105 // elf-core yet to support ReadFPR()
106 ProcessSP base = CalculateProcess();
107 if (base.get()->GetPluginName() == ProcessElfCore::GetPluginNameStatic())
111 RegisterContextPOSIX_mips64::~RegisterContextPOSIX_mips64()
116 RegisterContextPOSIX_mips64::Invalidate()
121 RegisterContextPOSIX_mips64::InvalidateAllRegisters()
126 RegisterContextPOSIX_mips64::GetRegisterOffset(unsigned reg)
128 assert(reg < k_num_registers_mips64 && "Invalid register number.");
129 return GetRegisterInfo()[reg].byte_offset;
133 RegisterContextPOSIX_mips64::GetRegisterSize(unsigned reg)
135 assert(reg < k_num_registers_mips64 && "Invalid register number.");
136 return GetRegisterInfo()[reg].byte_size;
140 RegisterContextPOSIX_mips64::GetRegisterCount()
142 size_t num_registers = k_num_registers_mips64;
143 return num_registers;
147 RegisterContextPOSIX_mips64::GetGPRSize()
149 return m_register_info_ap->GetGPRSize();
153 RegisterContextPOSIX_mips64::GetRegisterInfo()
155 // Commonly, this method is overridden and g_register_infos is copied and specialized.
156 // So, use GetRegisterInfo() rather than g_register_infos in this scope.
157 return m_register_info_ap->GetRegisterInfo ();
161 RegisterContextPOSIX_mips64::GetRegisterInfoAtIndex(size_t reg)
163 if (reg < k_num_registers_mips64)
164 return &GetRegisterInfo()[reg];
170 RegisterContextPOSIX_mips64::GetRegisterSetCount()
173 for (size_t set = 0; set < k_num_register_sets; ++set)
175 if (IsRegisterSetAvailable(set))
183 RegisterContextPOSIX_mips64::GetRegisterSet(size_t set)
185 if (IsRegisterSetAvailable(set))
186 return &g_reg_sets_mips64[set];
192 RegisterContextPOSIX_mips64::GetRegisterName(unsigned reg)
194 assert(reg < k_num_registers_mips64 && "Invalid register offset.");
195 return GetRegisterInfo()[reg].name;
199 RegisterContextPOSIX_mips64::GetByteOrder()
201 // Get the target process whose privileged thread was used for the register read.
202 lldb::ByteOrder byte_order = eByteOrderInvalid;
203 Process *process = CalculateProcess().get();
206 byte_order = process->GetByteOrder();
211 RegisterContextPOSIX_mips64::IsRegisterSetAvailable(size_t set_index)
213 size_t num_sets = k_num_register_sets;
215 return (set_index < num_sets);
218 // Used when parsing DWARF and EH frame information and any other
219 // object file sections that contain register numbers in them.
221 RegisterContextPOSIX_mips64::ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind,
224 const uint32_t num_regs = GetRegisterCount();
226 assert (kind < kNumRegisterKinds);
227 for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx)
229 const RegisterInfo *reg_info = GetRegisterInfoAtIndex (reg_idx);
231 if (reg_info->kinds[kind] == num)
235 return LLDB_INVALID_REGNUM;