| //===-- RegisterContextPOSIX_mips64.cpp -------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include <cstring> |
| #include <errno.h> |
| #include <stdint.h> |
| |
| #include "lldb/Core/DataBufferHeap.h" |
| #include "lldb/Core/DataExtractor.h" |
| #include "lldb/Core/RegisterValue.h" |
| #include "lldb/Core/Scalar.h" |
| #include "lldb/Target/Target.h" |
| #include "lldb/Target/Thread.h" |
| #include "lldb/Host/Endian.h" |
| #include "llvm/Support/Compiler.h" |
| |
| #include "RegisterContextPOSIX_mips64.h" |
| #include "Plugins/Process/elf-core/ProcessElfCore.h" |
| |
| using namespace lldb_private; |
| using namespace lldb; |
| |
| static const |
| uint32_t g_gpr_regnums[] = |
| { |
| gpr_zero_mips64, |
| gpr_r1_mips64, |
| gpr_r2_mips64, |
| gpr_r3_mips64, |
| gpr_r4_mips64, |
| gpr_r5_mips64, |
| gpr_r6_mips64, |
| gpr_r7_mips64, |
| gpr_r8_mips64, |
| gpr_r9_mips64, |
| gpr_r10_mips64, |
| gpr_r11_mips64, |
| gpr_r12_mips64, |
| gpr_r13_mips64, |
| gpr_r14_mips64, |
| gpr_r15_mips64, |
| gpr_r16_mips64, |
| gpr_r17_mips64, |
| gpr_r18_mips64, |
| gpr_r19_mips64, |
| gpr_r20_mips64, |
| gpr_r21_mips64, |
| gpr_r22_mips64, |
| gpr_r23_mips64, |
| gpr_r24_mips64, |
| gpr_r25_mips64, |
| gpr_r26_mips64, |
| gpr_r27_mips64, |
| gpr_gp_mips64, |
| gpr_sp_mips64, |
| gpr_r30_mips64, |
| gpr_ra_mips64, |
| gpr_sr_mips64, |
| gpr_mullo_mips64, |
| gpr_mulhi_mips64, |
| gpr_badvaddr_mips64, |
| gpr_cause_mips64, |
| gpr_pc_mips64, |
| gpr_ic_mips64, |
| gpr_dummy_mips64 |
| }; |
| |
| // Number of register sets provided by this context. |
| enum |
| { |
| k_num_register_sets = 1 |
| }; |
| |
| static const RegisterSet |
| g_reg_sets_mips64[k_num_register_sets] = |
| { |
| { "General Purpose Registers", "gpr", k_num_gpr_registers_mips64, g_gpr_regnums }, |
| }; |
| |
| bool RegisterContextPOSIX_mips64::IsGPR(unsigned reg) |
| { |
| return reg <= k_num_gpr_registers_mips64; // GPR's come first. |
| } |
| |
| bool |
| RegisterContextPOSIX_mips64::IsFPR(unsigned reg) |
| { |
| // XXX |
| return false; |
| } |
| |
| RegisterContextPOSIX_mips64::RegisterContextPOSIX_mips64(Thread &thread, |
| uint32_t concrete_frame_idx, |
| RegisterInfoInterface *register_info) |
| : RegisterContext(thread, concrete_frame_idx) |
| { |
| m_register_info_ap.reset(register_info); |
| |
| // elf-core yet to support ReadFPR() |
| ProcessSP base = CalculateProcess(); |
| if (base.get()->GetPluginName() == ProcessElfCore::GetPluginNameStatic()) |
| return; |
| } |
| |
| RegisterContextPOSIX_mips64::~RegisterContextPOSIX_mips64() |
| { |
| } |
| |
| void |
| RegisterContextPOSIX_mips64::Invalidate() |
| { |
| } |
| |
| void |
| RegisterContextPOSIX_mips64::InvalidateAllRegisters() |
| { |
| } |
| |
| unsigned |
| RegisterContextPOSIX_mips64::GetRegisterOffset(unsigned reg) |
| { |
| assert(reg < k_num_registers_mips64 && "Invalid register number."); |
| return GetRegisterInfo()[reg].byte_offset; |
| } |
| |
| unsigned |
| RegisterContextPOSIX_mips64::GetRegisterSize(unsigned reg) |
| { |
| assert(reg < k_num_registers_mips64 && "Invalid register number."); |
| return GetRegisterInfo()[reg].byte_size; |
| } |
| |
| size_t |
| RegisterContextPOSIX_mips64::GetRegisterCount() |
| { |
| size_t num_registers = k_num_registers_mips64; |
| return num_registers; |
| } |
| |
| size_t |
| RegisterContextPOSIX_mips64::GetGPRSize() |
| { |
| return m_register_info_ap->GetGPRSize(); |
| } |
| |
| const RegisterInfo * |
| RegisterContextPOSIX_mips64::GetRegisterInfo() |
| { |
| // Commonly, this method is overridden and g_register_infos is copied and specialized. |
| // So, use GetRegisterInfo() rather than g_register_infos in this scope. |
| return m_register_info_ap->GetRegisterInfo (); |
| } |
| |
| const RegisterInfo * |
| RegisterContextPOSIX_mips64::GetRegisterInfoAtIndex(size_t reg) |
| { |
| if (reg < k_num_registers_mips64) |
| return &GetRegisterInfo()[reg]; |
| else |
| return NULL; |
| } |
| |
| size_t |
| RegisterContextPOSIX_mips64::GetRegisterSetCount() |
| { |
| size_t sets = 0; |
| for (size_t set = 0; set < k_num_register_sets; ++set) |
| { |
| if (IsRegisterSetAvailable(set)) |
| ++sets; |
| } |
| |
| return sets; |
| } |
| |
| const RegisterSet * |
| RegisterContextPOSIX_mips64::GetRegisterSet(size_t set) |
| { |
| if (IsRegisterSetAvailable(set)) |
| return &g_reg_sets_mips64[set]; |
| else |
| return NULL; |
| } |
| |
| const char * |
| RegisterContextPOSIX_mips64::GetRegisterName(unsigned reg) |
| { |
| assert(reg < k_num_registers_mips64 && "Invalid register offset."); |
| return GetRegisterInfo()[reg].name; |
| } |
| |
| lldb::ByteOrder |
| RegisterContextPOSIX_mips64::GetByteOrder() |
| { |
| // Get the target process whose privileged thread was used for the register read. |
| lldb::ByteOrder byte_order = eByteOrderInvalid; |
| Process *process = CalculateProcess().get(); |
| |
| if (process) |
| byte_order = process->GetByteOrder(); |
| return byte_order; |
| } |
| |
| bool |
| RegisterContextPOSIX_mips64::IsRegisterSetAvailable(size_t set_index) |
| { |
| size_t num_sets = k_num_register_sets; |
| |
| return (set_index < num_sets); |
| } |
| |
| // Used when parsing DWARF and EH frame information and any other |
| // object file sections that contain register numbers in them. |
| uint32_t |
| RegisterContextPOSIX_mips64::ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, |
| uint32_t num) |
| { |
| const uint32_t num_regs = GetRegisterCount(); |
| |
| assert (kind < kNumRegisterKinds); |
| for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx) |
| { |
| const RegisterInfo *reg_info = GetRegisterInfoAtIndex (reg_idx); |
| |
| if (reg_info->kinds[kind] == num) |
| return reg_idx; |
| } |
| |
| return LLDB_INVALID_REGNUM; |
| } |
| |