| //===-- RegisterContextPOSIX_powerpc.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_powerpc.h" |
| |
| using namespace lldb_private; |
| using namespace lldb; |
| |
| static const uint32_t g_gpr_regnums[] = { |
| gpr_r0_powerpc, gpr_r1_powerpc, gpr_r2_powerpc, gpr_r3_powerpc, |
| gpr_r4_powerpc, gpr_r5_powerpc, gpr_r6_powerpc, gpr_r7_powerpc, |
| gpr_r8_powerpc, gpr_r9_powerpc, gpr_r10_powerpc, gpr_r11_powerpc, |
| gpr_r12_powerpc, gpr_r13_powerpc, gpr_r14_powerpc, gpr_r15_powerpc, |
| gpr_r16_powerpc, gpr_r17_powerpc, gpr_r18_powerpc, gpr_r19_powerpc, |
| gpr_r20_powerpc, gpr_r21_powerpc, gpr_r22_powerpc, gpr_r23_powerpc, |
| gpr_r24_powerpc, gpr_r25_powerpc, gpr_r26_powerpc, gpr_r27_powerpc, |
| gpr_r28_powerpc, gpr_r29_powerpc, gpr_r30_powerpc, gpr_r31_powerpc, |
| gpr_lr_powerpc, gpr_cr_powerpc, gpr_xer_powerpc, gpr_ctr_powerpc, |
| gpr_pc_powerpc, |
| }; |
| |
| static const uint32_t g_fpr_regnums[] = { |
| fpr_f0_powerpc, fpr_f1_powerpc, fpr_f2_powerpc, fpr_f3_powerpc, |
| fpr_f4_powerpc, fpr_f5_powerpc, fpr_f6_powerpc, fpr_f7_powerpc, |
| fpr_f8_powerpc, fpr_f9_powerpc, fpr_f10_powerpc, fpr_f11_powerpc, |
| fpr_f12_powerpc, fpr_f13_powerpc, fpr_f14_powerpc, fpr_f15_powerpc, |
| fpr_f16_powerpc, fpr_f17_powerpc, fpr_f18_powerpc, fpr_f19_powerpc, |
| fpr_f20_powerpc, fpr_f21_powerpc, fpr_f22_powerpc, fpr_f23_powerpc, |
| fpr_f24_powerpc, fpr_f25_powerpc, fpr_f26_powerpc, fpr_f27_powerpc, |
| fpr_f28_powerpc, fpr_f29_powerpc, fpr_f30_powerpc, fpr_f31_powerpc, |
| fpr_fpscr_powerpc, |
| }; |
| |
| static const uint32_t g_vmx_regnums[] = { |
| vmx_v0_powerpc, vmx_v1_powerpc, vmx_v2_powerpc, vmx_v3_powerpc, |
| vmx_v4_powerpc, vmx_v5_powerpc, vmx_v6_powerpc, vmx_v7_powerpc, |
| vmx_v8_powerpc, vmx_v9_powerpc, vmx_v10_powerpc, vmx_v11_powerpc, |
| vmx_v12_powerpc, vmx_v13_powerpc, vmx_v14_powerpc, vmx_v15_powerpc, |
| vmx_v16_powerpc, vmx_v17_powerpc, vmx_v18_powerpc, vmx_v19_powerpc, |
| vmx_v20_powerpc, vmx_v21_powerpc, vmx_v22_powerpc, vmx_v23_powerpc, |
| vmx_v24_powerpc, vmx_v25_powerpc, vmx_v26_powerpc, vmx_v27_powerpc, |
| vmx_v28_powerpc, vmx_v29_powerpc, vmx_v30_powerpc, vmx_v31_powerpc, |
| vmx_vrsave_powerpc, vmx_vscr_powerpc, |
| }; |
| |
| // Number of register sets provided by this context. |
| enum { k_num_register_sets = 3 }; |
| |
| static const RegisterSet g_reg_sets_powerpc[k_num_register_sets] = { |
| {"General Purpose Registers", "gpr", k_num_gpr_registers_powerpc, |
| g_gpr_regnums}, |
| {"Floating Point Registers", "fpr", k_num_fpr_registers_powerpc, |
| g_fpr_regnums}, |
| {"Altivec/VMX Registers", "vmx", k_num_vmx_registers_powerpc, |
| g_vmx_regnums}, |
| }; |
| |
| static_assert(k_first_gpr_powerpc == 0, |
| "GPRs must index starting at 0, or fix IsGPR()"); |
| bool RegisterContextPOSIX_powerpc::IsGPR(unsigned reg) { |
| return (reg <= k_last_gpr_powerpc); // GPR's come first. |
| } |
| |
| bool RegisterContextPOSIX_powerpc::IsFPR(unsigned reg) { |
| return (reg >= k_first_fpr) && (reg <= k_last_fpr); |
| } |
| |
| bool RegisterContextPOSIX_powerpc::IsVMX(unsigned reg) { |
| return (reg >= k_first_vmx) && (reg <= k_last_vmx); |
| } |
| |
| RegisterContextPOSIX_powerpc::RegisterContextPOSIX_powerpc( |
| Thread &thread, uint32_t concrete_frame_idx, |
| RegisterInfoInterface *register_info) |
| : RegisterContext(thread, concrete_frame_idx) { |
| m_register_info_ap.reset(register_info); |
| } |
| |
| RegisterContextPOSIX_powerpc::~RegisterContextPOSIX_powerpc() {} |
| |
| void RegisterContextPOSIX_powerpc::Invalidate() {} |
| |
| void RegisterContextPOSIX_powerpc::InvalidateAllRegisters() {} |
| |
| unsigned RegisterContextPOSIX_powerpc::GetRegisterOffset(unsigned reg) { |
| assert(reg < k_num_registers_powerpc && "Invalid register number."); |
| return GetRegisterInfo()[reg].byte_offset; |
| } |
| |
| unsigned RegisterContextPOSIX_powerpc::GetRegisterSize(unsigned reg) { |
| assert(reg < k_num_registers_powerpc && "Invalid register number."); |
| return GetRegisterInfo()[reg].byte_size; |
| } |
| |
| size_t RegisterContextPOSIX_powerpc::GetRegisterCount() { |
| size_t num_registers = k_num_registers_powerpc; |
| return num_registers; |
| } |
| |
| size_t RegisterContextPOSIX_powerpc::GetGPRSize() { |
| return m_register_info_ap->GetGPRSize(); |
| } |
| |
| const RegisterInfo *RegisterContextPOSIX_powerpc::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_powerpc::GetRegisterInfoAtIndex(size_t reg) { |
| if (reg < k_num_registers_powerpc) |
| return &GetRegisterInfo()[reg]; |
| else |
| return NULL; |
| } |
| |
| size_t RegisterContextPOSIX_powerpc::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_powerpc::GetRegisterSet(size_t set) { |
| if (IsRegisterSetAvailable(set)) |
| return &g_reg_sets_powerpc[set]; |
| else |
| return NULL; |
| } |
| |
| const char *RegisterContextPOSIX_powerpc::GetRegisterName(unsigned reg) { |
| assert(reg < k_num_registers_powerpc && "Invalid register offset."); |
| return GetRegisterInfo()[reg].name; |
| } |
| |
| lldb::ByteOrder RegisterContextPOSIX_powerpc::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_powerpc::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_powerpc::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; |
| } |