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65 lines
2.0 KiB
65 lines
2.0 KiB
4 months ago
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//===-- DecodedThread.cpp -------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "DecodedThread.h"
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#include "lldb/Utility/StreamString.h"
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using namespace lldb_private;
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using namespace lldb_private::trace_intel_pt;
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using namespace llvm;
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char IntelPTError::ID;
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IntelPTError::IntelPTError(int libipt_error_code, lldb::addr_t address)
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: m_libipt_error_code(libipt_error_code), m_address(address) {
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assert(libipt_error_code < 0);
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}
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void IntelPTError::log(llvm::raw_ostream &OS) const {
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const char *libipt_error_message = pt_errstr(pt_errcode(m_libipt_error_code));
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if (m_address != LLDB_INVALID_ADDRESS && m_address > 0) {
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write_hex(OS, m_address, HexPrintStyle::PrefixLower, 18);
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OS << " ";
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}
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OS << "error: " << libipt_error_message;
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}
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bool IntelPTInstruction::IsError() const { return (bool)m_error; }
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Expected<lldb::addr_t> IntelPTInstruction::GetLoadAddress() const {
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if (IsError())
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return ToError();
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return m_pt_insn.ip;
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}
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Error IntelPTInstruction::ToError() const {
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if (!IsError())
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return Error::success();
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if (m_error->isA<IntelPTError>())
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return make_error<IntelPTError>(static_cast<IntelPTError &>(*m_error));
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return make_error<StringError>(m_error->message(),
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m_error->convertToErrorCode());
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}
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size_t DecodedThread::GetLastPosition() const {
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return m_instructions.empty() ? 0 : m_instructions.size() - 1;
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}
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ArrayRef<IntelPTInstruction> DecodedThread::GetInstructions() const {
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return makeArrayRef(m_instructions);
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}
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size_t DecodedThread::GetCursorPosition() const { return m_position; }
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size_t DecodedThread::SetCursorPosition(size_t new_position) {
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m_position = std::min(new_position, GetLastPosition());
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return m_position;
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}
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