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