120 lines
3.5 KiB
C++
120 lines
3.5 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/RegisterContext.h"
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#include "lldb/Target/Thread.h"
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using namespace lldb_private;
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RegisterNumber::RegisterNumber(lldb_private::Thread &thread,
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lldb::RegisterKind kind, uint32_t num)
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: m_reg_ctx_sp(thread.GetRegisterContext()), m_regnum(num), m_kind(kind),
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m_kind_regnum_map(), m_name("") {
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if (m_reg_ctx_sp.get()) {
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const lldb_private::RegisterInfo *reginfo =
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m_reg_ctx_sp->GetRegisterInfoAtIndex(
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GetAsKind(lldb::eRegisterKindLLDB));
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if (reginfo && reginfo->name) {
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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(), m_regnum(LLDB_INVALID_REGNUM),
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m_kind(lldb::kNumRegisterKinds), m_kind_regnum_map(), m_name(nullptr) {}
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void RegisterNumber::init(lldb_private::Thread &thread, lldb::RegisterKind kind,
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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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if (m_reg_ctx_sp.get()) {
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const lldb_private::RegisterInfo *reginfo =
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m_reg_ctx_sp->GetRegisterInfoAtIndex(
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GetAsKind(lldb::eRegisterKindLLDB));
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if (reginfo && reginfo->name) {
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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 &RegisterNumber::operator=(const RegisterNumber &rhs) {
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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 RegisterNumber::operator==(RegisterNumber &rhs) {
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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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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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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 RegisterNumber::operator!=(RegisterNumber &rhs) { return !(*this == rhs); }
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bool RegisterNumber::IsValid() const {
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return m_reg_ctx_sp.get() && m_kind != lldb::kNumRegisterKinds &&
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m_regnum != LLDB_INVALID_REGNUM;
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}
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uint32_t RegisterNumber::GetAsKind(lldb::RegisterKind kind) {
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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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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,
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output_regnum) &&
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output_regnum != LLDB_INVALID_REGNUM) {
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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 RegisterNumber::GetRegisterNumber() const { return m_regnum; }
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lldb::RegisterKind RegisterNumber::GetRegisterKind() const { return m_kind; }
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const char *RegisterNumber::GetName() { return m_name; }
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