| //===-- 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/RegisterValue.h" |
| #include "lldb/Core/Scalar.h" |
| #include "lldb/Target/Process.h" |
| #include "lldb/Target/Target.h" |
| #include "lldb/Target/Thread.h" |
| #include "lldb/Utility/DataBufferHeap.h" |
| #include "lldb/Utility/DataExtractor.h" |
| #include "lldb/Utility/Endian.h" |
| #include "llvm/Support/Compiler.h" |
| |
| #include "RegisterContextPOSIX_mips64.h" |
| #include "RegisterContextFreeBSD_mips64.h" |
| #include "RegisterContextLinux_mips64.h" |
| #include "RegisterContextLinux_mips.h" |
| |
| using namespace lldb_private; |
| using namespace lldb; |
| |
| bool RegisterContextPOSIX_mips64::IsGPR(unsigned reg) { |
| return reg < m_registers_count[gpr_registers_count]; // GPR's come first. |
| } |
| |
| bool RegisterContextPOSIX_mips64::IsFPR(unsigned reg) { |
| int set = GetRegisterSetCount(); |
| if (set > 1) |
| return reg < (m_registers_count[fpr_registers_count] |
| + m_registers_count[gpr_registers_count]); |
| 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); |
| m_num_registers = GetRegisterCount(); |
| int set = GetRegisterSetCount(); |
| |
| const RegisterSet *reg_set_ptr; |
| for(int i = 0; i < set; ++i) { |
| reg_set_ptr = GetRegisterSet(i); |
| m_registers_count[i] = reg_set_ptr->num_registers; |
| } |
| |
| assert(m_num_registers == |
| static_cast<uint32_t>(m_registers_count[gpr_registers_count] + |
| m_registers_count[fpr_registers_count] + |
| m_registers_count[msa_registers_count])); |
| } |
| |
| RegisterContextPOSIX_mips64::~RegisterContextPOSIX_mips64() {} |
| |
| void RegisterContextPOSIX_mips64::Invalidate() {} |
| |
| void RegisterContextPOSIX_mips64::InvalidateAllRegisters() {} |
| |
| unsigned RegisterContextPOSIX_mips64::GetRegisterOffset(unsigned reg) { |
| assert(reg < m_num_registers && "Invalid register number."); |
| return GetRegisterInfo()[reg].byte_offset; |
| } |
| |
| unsigned RegisterContextPOSIX_mips64::GetRegisterSize(unsigned reg) { |
| assert(reg < m_num_registers && "Invalid register number."); |
| return GetRegisterInfo()[reg].byte_size; |
| } |
| |
| size_t RegisterContextPOSIX_mips64::GetRegisterCount() { |
| return m_register_info_ap->GetRegisterCount(); |
| } |
| |
| 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 < m_num_registers) |
| return &GetRegisterInfo()[reg]; |
| else |
| return NULL; |
| } |
| |
| size_t RegisterContextPOSIX_mips64::GetRegisterSetCount() { |
| ArchSpec target_arch = m_register_info_ap->GetTargetArchitecture(); |
| switch (target_arch.GetTriple().getOS()) { |
| case llvm::Triple::Linux: { |
| if ((target_arch.GetMachine() == llvm::Triple::mipsel) || |
| (target_arch.GetMachine() == llvm::Triple::mips)) { |
| const auto *context = static_cast<const RegisterContextLinux_mips *> |
| (m_register_info_ap.get()); |
| return context->GetRegisterSetCount(); |
| } |
| const auto *context = static_cast<const RegisterContextLinux_mips64 *> |
| (m_register_info_ap.get()); |
| return context->GetRegisterSetCount(); |
| } |
| default: { |
| const auto *context = static_cast<const RegisterContextFreeBSD_mips64 *> |
| (m_register_info_ap.get()); |
| return context->GetRegisterSetCount(); |
| } |
| |
| } |
| } |
| |
| const RegisterSet *RegisterContextPOSIX_mips64::GetRegisterSet(size_t set) { |
| ArchSpec target_arch = m_register_info_ap->GetTargetArchitecture(); |
| switch (target_arch.GetTriple().getOS()) { |
| case llvm::Triple::Linux: { |
| if ((target_arch.GetMachine() == llvm::Triple::mipsel) || |
| (target_arch.GetMachine() == llvm::Triple::mips)) { |
| const auto *context = static_cast<const RegisterContextLinux_mips *> |
| (m_register_info_ap.get()); |
| return context->GetRegisterSet(set); |
| } |
| const auto *context = static_cast<const RegisterContextLinux_mips64 *> |
| (m_register_info_ap.get()); |
| return context->GetRegisterSet(set); |
| } |
| default: { |
| const auto *context = static_cast<const RegisterContextFreeBSD_mips64 *> |
| (m_register_info_ap.get()); |
| return context->GetRegisterSet(set); |
| } |
| } |
| } |
| |
| const char *RegisterContextPOSIX_mips64::GetRegisterName(unsigned reg) { |
| assert(reg < m_num_registers && "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 = GetRegisterSetCount(); |
| |
| 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 = m_num_registers; |
| |
| 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; |
| } |