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diff --git a/source/Plugins/Process/Utility/RegisterContextPOSIX_arm64.cpp b/source/Plugins/Process/Utility/RegisterContextPOSIX_arm64.cpp
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+//===-- RegisterContextPOSIX_arm64.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_arm64.h"
+#include "Plugins/Process/elf-core/ProcessElfCore.h"
+
+// 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,
+ 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_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.
+}
+
+bool RegisterContextPOSIX_arm64::IsFPR(unsigned reg)
+{
+ return (m_reg_info.first_fpr <= reg && reg <= m_reg_info.last_fpr);
+}
+
+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_ap.reset(register_info);
+
+ switch (register_info->m_target_arch.GetMachine())
+ {
+ case llvm::Triple::aarch64:
+ 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;
+ }
+
+ ::memset(&m_fpr, 0, sizeof m_fpr);
+
+ // elf-core yet to support ReadFPR()
+ lldb::ProcessSP base = CalculateProcess();
+ if (base.get()->GetPluginName() == ProcessElfCore::GetPluginNameStatic())
+ return;
+}
+
+RegisterContextPOSIX_arm64::~RegisterContextPOSIX_arm64()
+{
+}
+
+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;
+}
+
+unsigned
+RegisterContextPOSIX_arm64::GetRegisterSize(unsigned reg)
+{
+ assert(reg < m_reg_info.num_registers && "Invalid register number.");
+ return 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;
+}
+
+size_t
+RegisterContextPOSIX_arm64::GetGPRSize()
+{
+ return m_register_info_ap->GetGPRSize ();
+}
+
+const lldb_private::RegisterInfo *
+RegisterContextPOSIX_arm64::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 lldb_private::RegisterInfo *
+RegisterContextPOSIX_arm64::GetRegisterInfoAtIndex(size_t reg)
+{
+ if (reg < m_reg_info.num_registers)
+ return &GetRegisterInfo()[reg];
+ else
+ return NULL;
+}
+
+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;
+}
+
+const lldb_private::RegisterSet *
+RegisterContextPOSIX_arm64::GetRegisterSet(size_t set)
+{
+ if (IsRegisterSetAvailable(set))
+ {
+ switch (m_register_info_ap->m_target_arch.GetMachine())
+ {
+ case llvm::Triple::aarch64:
+ return &g_reg_sets_arm64[set];
+ default:
+ assert(false && "Unhandled target architecture.");
+ return NULL;
+ }
+ }
+ return NULL;
+}
+
+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;
+}