158 lines
3.6 KiB
C++
158 lines
3.6 KiB
C++
//===--------------------- RegisterNumber.cpp -------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Utility/RegisterNumber.h"
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#include "lldb/Target/Thread.h"
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#include "lldb/Target/RegisterContext.h"
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using namespace lldb_private;
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RegisterNumber::RegisterNumber (lldb_private::Thread &thread, lldb::RegisterKind kind, uint32_t num) :
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m_reg_ctx_sp (thread.GetRegisterContext()),
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m_regnum (num),
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m_kind (kind),
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m_kind_regnum_map (),
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m_name ("")
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{
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if (m_reg_ctx_sp.get())
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{
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const lldb_private::RegisterInfo *reginfo = m_reg_ctx_sp->GetRegisterInfoAtIndex (GetAsKind (lldb::eRegisterKindLLDB));
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if (reginfo && reginfo->name)
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{
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m_name = reginfo->name;
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}
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}
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}
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RegisterNumber::RegisterNumber () :
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m_reg_ctx_sp(),
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m_regnum (LLDB_INVALID_REGNUM),
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m_kind (lldb::kNumRegisterKinds),
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m_kind_regnum_map (),
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m_name (nullptr)
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{
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}
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void
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RegisterNumber::init (lldb_private::Thread &thread, lldb::RegisterKind kind, uint32_t num)
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{
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m_reg_ctx_sp = thread.GetRegisterContext();
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m_regnum = num;
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m_kind = kind;
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if (m_reg_ctx_sp.get())
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{
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const lldb_private::RegisterInfo *reginfo = m_reg_ctx_sp->GetRegisterInfoAtIndex (GetAsKind (lldb::eRegisterKindLLDB));
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if (reginfo && reginfo->name)
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{
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m_name = reginfo->name;
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}
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}
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}
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const RegisterNumber &
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RegisterNumber::operator = (const RegisterNumber &rhs)
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{
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m_reg_ctx_sp = rhs.m_reg_ctx_sp;
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m_regnum = rhs.m_regnum;
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m_kind = rhs.m_kind;
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for (auto it : rhs.m_kind_regnum_map)
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m_kind_regnum_map[it.first] = it.second;
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m_name = rhs.m_name;
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return *this;
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}
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bool
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RegisterNumber::operator == (RegisterNumber &rhs)
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{
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if (IsValid() != rhs.IsValid())
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return false;
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if (m_kind == rhs.m_kind)
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{
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if (m_regnum == rhs.m_regnum)
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return true;
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else
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return false;
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}
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uint32_t rhs_regnum = rhs.GetAsKind (m_kind);
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if (rhs_regnum != LLDB_INVALID_REGNUM)
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{
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if (m_regnum == rhs_regnum)
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return true;
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else
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return false;
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}
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uint32_t lhs_regnum = GetAsKind (rhs.m_kind);
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{
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if (lhs_regnum == rhs.m_regnum)
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return true;
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else
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return false;
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}
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return false;
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}
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bool
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RegisterNumber::operator != (RegisterNumber &rhs)
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{
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return !(*this == rhs);
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}
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bool
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RegisterNumber::IsValid () const
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{
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return m_reg_ctx_sp.get()
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&& m_kind != lldb::kNumRegisterKinds
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&& m_regnum != LLDB_INVALID_REGNUM;
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}
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uint32_t
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RegisterNumber::GetAsKind (lldb::RegisterKind kind)
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{
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if (m_regnum == LLDB_INVALID_REGNUM)
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return LLDB_INVALID_REGNUM;
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if (kind == m_kind)
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return m_regnum;
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Collection::iterator iter = m_kind_regnum_map.find (kind);
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if (iter != m_kind_regnum_map.end())
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{
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return iter->second;
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}
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uint32_t output_regnum = LLDB_INVALID_REGNUM;
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if (m_reg_ctx_sp
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&& m_reg_ctx_sp->ConvertBetweenRegisterKinds (m_kind, m_regnum, kind, output_regnum)
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&& output_regnum != LLDB_INVALID_REGNUM)
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{
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m_kind_regnum_map[kind] = output_regnum;
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}
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return output_regnum;
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}
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uint32_t
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RegisterNumber::GetRegisterNumber () const
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{
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return m_regnum;
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}
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lldb::RegisterKind
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RegisterNumber::GetRegisterKind () const
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{
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return m_kind;
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}
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const char *
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RegisterNumber::GetName ()
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{
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return m_name;
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}
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