diff options
Diffstat (limited to 'lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_arm64.cpp')
| -rw-r--r-- | lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_arm64.cpp | 176 |
1 files changed, 22 insertions, 154 deletions
diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_arm64.cpp b/lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_arm64.cpp index db1aa1b8b093..8ef587f13e3a 100644 --- a/lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_arm64.cpp +++ b/lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_arm64.cpp @@ -1,4 +1,4 @@ -//===-- RegisterContextPOSIX_arm64.cpp --------------------------*- C++ -*-===// +//===-- RegisterContextPOSIX_arm64.cpp ------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. @@ -25,105 +25,25 @@ using namespace lldb; using namespace lldb_private; -// ARM64 general purpose registers. -const uint32_t g_gpr_regnums_arm64[] = { - gpr_x0_arm64, gpr_x1_arm64, gpr_x2_arm64, gpr_x3_arm64, - gpr_x4_arm64, gpr_x5_arm64, gpr_x6_arm64, gpr_x7_arm64, - gpr_x8_arm64, gpr_x9_arm64, gpr_x10_arm64, gpr_x11_arm64, - gpr_x12_arm64, gpr_x13_arm64, gpr_x14_arm64, gpr_x15_arm64, - gpr_x16_arm64, gpr_x17_arm64, gpr_x18_arm64, gpr_x19_arm64, - gpr_x20_arm64, gpr_x21_arm64, gpr_x22_arm64, gpr_x23_arm64, - gpr_x24_arm64, gpr_x25_arm64, gpr_x26_arm64, gpr_x27_arm64, - gpr_x28_arm64, gpr_fp_arm64, gpr_lr_arm64, gpr_sp_arm64, - gpr_pc_arm64, gpr_cpsr_arm64, gpr_w0_arm64, gpr_w1_arm64, - gpr_w2_arm64, gpr_w3_arm64, gpr_w4_arm64, gpr_w5_arm64, - gpr_w6_arm64, gpr_w7_arm64, gpr_w8_arm64, gpr_w9_arm64, - gpr_w10_arm64, gpr_w11_arm64, gpr_w12_arm64, gpr_w13_arm64, - gpr_w14_arm64, gpr_w15_arm64, gpr_w16_arm64, gpr_w17_arm64, - gpr_w18_arm64, gpr_w19_arm64, gpr_w20_arm64, gpr_w21_arm64, - gpr_w22_arm64, gpr_w23_arm64, gpr_w24_arm64, gpr_w25_arm64, - gpr_w26_arm64, gpr_w27_arm64, gpr_w28_arm64, - LLDB_INVALID_REGNUM // register sets need to end with this flag -}; -static_assert(((sizeof g_gpr_regnums_arm64 / sizeof g_gpr_regnums_arm64[0]) - - 1) == k_num_gpr_registers_arm64, - "g_gpr_regnums_arm64 has wrong number of register infos"); - -// ARM64 floating point registers. -static const uint32_t g_fpu_regnums_arm64[] = { - fpu_v0_arm64, fpu_v1_arm64, fpu_v2_arm64, fpu_v3_arm64, - fpu_v4_arm64, fpu_v5_arm64, fpu_v6_arm64, fpu_v7_arm64, - fpu_v8_arm64, fpu_v9_arm64, fpu_v10_arm64, fpu_v11_arm64, - fpu_v12_arm64, fpu_v13_arm64, fpu_v14_arm64, fpu_v15_arm64, - fpu_v16_arm64, fpu_v17_arm64, fpu_v18_arm64, fpu_v19_arm64, - fpu_v20_arm64, fpu_v21_arm64, fpu_v22_arm64, fpu_v23_arm64, - fpu_v24_arm64, fpu_v25_arm64, fpu_v26_arm64, fpu_v27_arm64, - fpu_v28_arm64, fpu_v29_arm64, fpu_v30_arm64, fpu_v31_arm64, - fpu_s0_arm64, fpu_s1_arm64, fpu_s2_arm64, fpu_s3_arm64, - fpu_s4_arm64, fpu_s5_arm64, fpu_s6_arm64, fpu_s7_arm64, - fpu_s8_arm64, fpu_s9_arm64, fpu_s10_arm64, fpu_s11_arm64, - fpu_s12_arm64, fpu_s13_arm64, fpu_s14_arm64, fpu_s15_arm64, - fpu_s16_arm64, fpu_s17_arm64, fpu_s18_arm64, fpu_s19_arm64, - fpu_s20_arm64, fpu_s21_arm64, fpu_s22_arm64, fpu_s23_arm64, - fpu_s24_arm64, fpu_s25_arm64, fpu_s26_arm64, fpu_s27_arm64, - fpu_s28_arm64, fpu_s29_arm64, fpu_s30_arm64, fpu_s31_arm64, - - fpu_d0_arm64, fpu_d1_arm64, fpu_d2_arm64, fpu_d3_arm64, - fpu_d4_arm64, fpu_d5_arm64, fpu_d6_arm64, fpu_d7_arm64, - fpu_d8_arm64, fpu_d9_arm64, fpu_d10_arm64, fpu_d11_arm64, - fpu_d12_arm64, fpu_d13_arm64, fpu_d14_arm64, fpu_d15_arm64, - fpu_d16_arm64, fpu_d17_arm64, fpu_d18_arm64, fpu_d19_arm64, - fpu_d20_arm64, fpu_d21_arm64, fpu_d22_arm64, fpu_d23_arm64, - fpu_d24_arm64, fpu_d25_arm64, fpu_d26_arm64, fpu_d27_arm64, - fpu_d28_arm64, fpu_d29_arm64, fpu_d30_arm64, fpu_d31_arm64, - fpu_fpsr_arm64, fpu_fpcr_arm64, - LLDB_INVALID_REGNUM // register sets need to end with this flag -}; -static_assert(((sizeof g_fpu_regnums_arm64 / sizeof g_fpu_regnums_arm64[0]) - - 1) == k_num_fpr_registers_arm64, - "g_fpu_regnums_arm64 has wrong number of register infos"); - -// Number of register sets provided by this context. -enum { k_num_register_sets = 2 }; - -// Register sets for ARM64. -static const lldb_private::RegisterSet g_reg_sets_arm64[k_num_register_sets] = { - {"General Purpose Registers", "gpr", k_num_gpr_registers_arm64, - g_gpr_regnums_arm64}, - {"Floating Point Registers", "fpu", k_num_fpr_registers_arm64, - g_fpu_regnums_arm64}}; - bool RegisterContextPOSIX_arm64::IsGPR(unsigned reg) { - return reg <= m_reg_info.last_gpr; // GPR's come first. + if (m_register_info_up->GetRegisterSetFromRegisterIndex(reg) == + RegisterInfoPOSIX_arm64::GPRegSet) + return true; + return false; } bool RegisterContextPOSIX_arm64::IsFPR(unsigned reg) { - return (m_reg_info.first_fpr <= reg && reg <= m_reg_info.last_fpr); + if (m_register_info_up->GetRegisterSetFromRegisterIndex(reg) == + RegisterInfoPOSIX_arm64::FPRegSet) + return true; + return false; } RegisterContextPOSIX_arm64::RegisterContextPOSIX_arm64( - lldb_private::Thread &thread, uint32_t concrete_frame_idx, - lldb_private::RegisterInfoInterface *register_info) - : lldb_private::RegisterContext(thread, concrete_frame_idx) { - m_register_info_up.reset(register_info); - - switch (register_info->m_target_arch.GetMachine()) { - case llvm::Triple::aarch64: - case llvm::Triple::aarch64_32: - m_reg_info.num_registers = k_num_registers_arm64; - m_reg_info.num_gpr_registers = k_num_gpr_registers_arm64; - m_reg_info.num_fpr_registers = k_num_fpr_registers_arm64; - m_reg_info.last_gpr = k_last_gpr_arm64; - m_reg_info.first_fpr = k_first_fpr_arm64; - m_reg_info.last_fpr = k_last_fpr_arm64; - m_reg_info.first_fpr_v = fpu_v0_arm64; - m_reg_info.last_fpr_v = fpu_v31_arm64; - m_reg_info.gpr_flags = gpr_cpsr_arm64; - break; - default: - assert(false && "Unhandled target architecture."); - break; - } + lldb_private::Thread &thread, + std::unique_ptr<RegisterInfoPOSIX_arm64> register_info) + : lldb_private::RegisterContext(thread, 0), + m_register_info_up(std::move(register_info)) { ::memset(&m_fpr, 0, sizeof m_fpr); } @@ -135,19 +55,15 @@ void RegisterContextPOSIX_arm64::Invalidate() {} void RegisterContextPOSIX_arm64::InvalidateAllRegisters() {} unsigned RegisterContextPOSIX_arm64::GetRegisterOffset(unsigned reg) { - assert(reg < m_reg_info.num_registers && "Invalid register number."); - return GetRegisterInfo()[reg].byte_offset; + return m_register_info_up->GetRegisterInfo()[reg].byte_offset; } unsigned RegisterContextPOSIX_arm64::GetRegisterSize(unsigned reg) { - assert(reg < m_reg_info.num_registers && "Invalid register number."); - return GetRegisterInfo()[reg].byte_size; + return m_register_info_up->GetRegisterInfo()[reg].byte_size; } size_t RegisterContextPOSIX_arm64::GetRegisterCount() { - size_t num_registers = - m_reg_info.num_gpr_registers + m_reg_info.num_fpr_registers; - return num_registers; + return m_register_info_up->GetRegisterCount(); } size_t RegisterContextPOSIX_arm64::GetGPRSize() { @@ -164,71 +80,23 @@ RegisterContextPOSIX_arm64::GetRegisterInfo() { const lldb_private::RegisterInfo * RegisterContextPOSIX_arm64::GetRegisterInfoAtIndex(size_t reg) { - if (reg < m_reg_info.num_registers) + if (reg < GetRegisterCount()) return &GetRegisterInfo()[reg]; else return nullptr; } size_t RegisterContextPOSIX_arm64::GetRegisterSetCount() { - size_t sets = 0; - for (size_t set = 0; set < k_num_register_sets; ++set) { - if (IsRegisterSetAvailable(set)) - ++sets; - } - - return sets; + return m_register_info_up->GetRegisterSetCount(); } const lldb_private::RegisterSet * RegisterContextPOSIX_arm64::GetRegisterSet(size_t set) { - if (IsRegisterSetAvailable(set)) { - switch (m_register_info_up->m_target_arch.GetMachine()) { - case llvm::Triple::aarch64: - case llvm::Triple::aarch64_32: - return &g_reg_sets_arm64[set]; - default: - assert(false && "Unhandled target architecture."); - return nullptr; - } - } - return nullptr; + return m_register_info_up->GetRegisterSet(set); } const char *RegisterContextPOSIX_arm64::GetRegisterName(unsigned reg) { - assert(reg < m_reg_info.num_registers && "Invalid register offset."); - return GetRegisterInfo()[reg].name; -} - -lldb::ByteOrder RegisterContextPOSIX_arm64::GetByteOrder() { - // Get the target process whose privileged thread was used for the register - // read. - lldb::ByteOrder byte_order = lldb::eByteOrderInvalid; - lldb_private::Process *process = CalculateProcess().get(); - - if (process) - byte_order = process->GetByteOrder(); - return byte_order; -} - -bool RegisterContextPOSIX_arm64::IsRegisterSetAvailable(size_t set_index) { - return set_index < k_num_register_sets; -} - -// Used when parsing DWARF and EH frame information and any other object file -// sections that contain register numbers in them. -uint32_t RegisterContextPOSIX_arm64::ConvertRegisterKindToRegisterNumber( - lldb::RegisterKind kind, uint32_t num) { - const uint32_t num_regs = GetRegisterCount(); - - assert(kind < lldb::kNumRegisterKinds); - for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx) { - const lldb_private::RegisterInfo *reg_info = - GetRegisterInfoAtIndex(reg_idx); - - if (reg_info->kinds[kind] == num) - return reg_idx; - } - - return LLDB_INVALID_REGNUM; + if (reg < GetRegisterCount()) + return GetRegisterInfo()[reg].name; + return nullptr; } |