C++ Log::PutCString方法代码示例

Error
ProcessKDP::DoDetach(bool keep_stopped)
{
    Error error;
    Log *log (ProcessKDPLog::GetLogIfAllCategoriesSet(KDP_LOG_PROCESS));
    if (log)
        log->Printf ("ProcessKDP::DoDetach(keep_stopped = %i)", keep_stopped);
    
    if (m_comm.IsRunning())
    {
        // We are running and we can't interrupt a running kernel, so we need
        // to just close the connection to the kernel and hope for the best
    }
    else
    {
        DisableAllBreakpointSites ();
        
        m_thread_list.DiscardThreadPlans();
        
        // If we are going to keep the target stopped, then don't send the disconnect message.
        if (!keep_stopped && m_comm.IsConnected())
        {
            const bool success = m_comm.SendRequestDisconnect();
            if (log)
            {
                if (success)
                    log->PutCString ("ProcessKDP::DoDetach() detach packet sent successfully");
                else
                    log->PutCString ("ProcessKDP::DoDetach() connection channel shutdown failed");
            }
            m_comm.Disconnect ();
        }
    }
    StopAsyncThread ();    
    m_comm.Clear();
    
    SetPrivateState (eStateDetached);
    ResumePrivateStateThread();
    
    //KillDebugserverProcess ();
    return error;
}

Error
SoftwareBreakpoint::EnableSoftwareBreakpoint (NativeProcessProtocol &process, lldb::addr_t addr, size_t bp_opcode_size, const uint8_t *bp_opcode_bytes, uint8_t *saved_opcode_bytes)
{
    assert (bp_opcode_size <= MAX_TRAP_OPCODE_SIZE && "bp_opcode_size out of valid range");
    assert (bp_opcode_bytes && "bp_opcode_bytes is NULL");
    assert (saved_opcode_bytes && "saved_opcode_bytes is NULL");

    Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
    if (log)
        log->Printf ("SoftwareBreakpoint::%s addr = 0x%" PRIx64, __FUNCTION__, addr);

    // Save the original opcodes by reading them so we can restore later.
    size_t bytes_read = 0;

    Error error = process.ReadMemory(addr, saved_opcode_bytes, bp_opcode_size, bytes_read);
    if (error.Fail ())
    {
        if (log)
            log->Printf ("SoftwareBreakpoint::%s failed to read memory while attempting to set breakpoint: %s", __FUNCTION__, error.AsCString ());
        return error;
    }

    // Ensure we read as many bytes as we expected.
    if (bytes_read != bp_opcode_size)
    {
        if (log)
            log->Printf ("SoftwareBreakpoint::%s failed to read memory while attempting to set breakpoint: attempted to read %lu bytes but only read %" PRIu64, __FUNCTION__, bp_opcode_size, (uint64_t)bytes_read);
        return Error ("SoftwareBreakpoint::%s failed to read memory while attempting to set breakpoint: attempted to read %lu bytes but only read %" PRIu64, __FUNCTION__, bp_opcode_size, (uint64_t)bytes_read);
    }

    // Log what we read.
    if (log)
    {
        int i = 0;
        for (const uint8_t *read_byte = saved_opcode_bytes; read_byte < saved_opcode_bytes + bp_opcode_size; ++read_byte)
        {
            log->Printf("SoftwareBreakpoint::%s addr = 0x%" PRIx64
                    " ovewriting byte index %d (was 0x%hhx)",
                    __FUNCTION__, addr, i++, *read_byte);
        }
    }

    // Write a software breakpoint in place of the original opcode.
    size_t bytes_written = 0;
    error = process.WriteMemory(addr, bp_opcode_bytes, bp_opcode_size, bytes_written);
    if (error.Fail ())
    {
        if (log)
            log->Printf ("SoftwareBreakpoint::%s failed to write memory while attempting to set breakpoint: %s", __FUNCTION__, error.AsCString ());
        return error;
    }

    // Ensure we wrote as many bytes as we expected.
    if (bytes_written != bp_opcode_size)
    {
        error.SetErrorStringWithFormat("SoftwareBreakpoint::%s failed write memory while attempting to set breakpoint: attempted to write %lu bytes but only wrote %" PRIu64, __FUNCTION__, bp_opcode_size, (uint64_t)bytes_written);
        if (log)
            log->PutCString (error.AsCString ());
        return error;
    }

    uint8_t verify_bp_opcode_bytes [MAX_TRAP_OPCODE_SIZE];
    size_t verify_bytes_read = 0;
    error = process.ReadMemory(addr, verify_bp_opcode_bytes, bp_opcode_size, verify_bytes_read);
    if (error.Fail ())
    {
        if (log)
            log->Printf ("SoftwareBreakpoint::%s failed to read memory while attempting to verify the breakpoint set: %s", __FUNCTION__, error.AsCString ());
        return error;
    }

    // Ensure we read as many verification bytes as we expected.
    if (verify_bytes_read != bp_opcode_size)
    {
        if (log)
            log->Printf ("SoftwareBreakpoint::%s failed to read memory while attempting to verify breakpoint: attempted to read %lu bytes but only read %" PRIu64, __FUNCTION__, bp_opcode_size, (uint64_t)verify_bytes_read);
        return Error ("SoftwareBreakpoint::%s failed to read memory while attempting to verify breakpoint: attempted to read %lu bytes but only read %" PRIu64, __FUNCTION__, bp_opcode_size, (uint64_t)verify_bytes_read);
    }

    if (::memcmp(bp_opcode_bytes, verify_bp_opcode_bytes, bp_opcode_size) != 0)
    {
        if (log)
            log->Printf ("SoftwareBreakpoint::%s: verification of software breakpoint writing failed - trap opcodes not successfully read back after writing when setting breakpoint at 0x%" PRIx64, __FUNCTION__, addr);
        return Error ("SoftwareBreakpoint::%s: verification of software breakpoint writing failed - trap opcodes not successfully read back after writing when setting breakpoint at 0x%" PRIx64, __FUNCTION__, addr);
    }

    if (log)
        log->Printf ("SoftwareBreakpoint::%s addr = 0x%" PRIx64 " -- SUCCESS", __FUNCTION__, addr);

    return Error ();
}

//.........这里部分代码省略.........
                bool binary = false;
                // Only detect binary for packets that start with a '$' and have a '#CC' checksum
                if (m_bytes[0] == '$' && total_length > 4)
                {
                    for (size_t i=0; !binary && i<total_length; ++i)
                    {
                        if (isprint(m_bytes[i]) == 0)
                            binary = true;
                    }
                }
                if (binary)
                {
                    StreamString strm;
                    // Packet header...
                    strm.Printf("<%4" PRIu64 "> read packet: %c", (uint64_t)total_length, m_bytes[0]);
                    for (size_t i=content_start; i<content_end; ++i)
                    {
                        // Remove binary escaped bytes when displaying the packet...
                        const char ch = m_bytes[i];
                        if (ch == 0x7d)
                        {
                            // 0x7d is the escape character.  The next character is to
                            // be XOR'd with 0x20.
                            const char escapee = m_bytes[++i] ^ 0x20;
                            strm.Printf("%2.2x", escapee);
                        }
                        else
                        {
                            strm.Printf("%2.2x", (uint8_t)ch);
                        }
                    }
                    // Packet footer...
                    strm.Printf("%c%c%c", m_bytes[total_length-3], m_bytes[total_length-2], m_bytes[total_length-1]);
                    log->PutCString(strm.GetString().c_str());
                }
                else
                {
                    log->Printf("<%4" PRIu64 "> read packet: %.*s", (uint64_t)total_length, (int)(total_length), m_bytes.c_str());
                }
            }

            m_history.AddPacket (m_bytes.c_str(), total_length, History::ePacketTypeRecv, total_length);

            // Clear packet_str in case there is some existing data in it.
            packet_str.clear();
            // Copy the packet from m_bytes to packet_str expanding the
            // run-length encoding in the process.
            // Reserve enough byte for the most common case (no RLE used)
            packet_str.reserve(m_bytes.length());
            for (std::string::const_iterator c = m_bytes.begin() + content_start; c != m_bytes.begin() + content_end; ++c)
            {
                if (*c == '*')
                {
                    // '*' indicates RLE. Next character will give us the
                    // repeat count and previous character is what is to be
                    // repeated.
                    char char_to_repeat = packet_str.back();
                    // Number of time the previous character is repeated
                    int repeat_count = *++c + 3 - ' ';
                    // We have the char_to_repeat and repeat_count. Now push
                    // it in the packet.
                    for (int i = 0; i < repeat_count; ++i)
                        packet_str.push_back(char_to_repeat);
                }
                else if (*c == 0x7d)
                {

GDBRemoteCommunication::PacketResult
GDBRemoteCommunication::SendPacketNoLock (const char *payload, size_t payload_length)
{
    if (IsConnected())
    {
        StreamString packet(0, 4, eByteOrderBig);

        packet.PutChar('$');
        packet.Write (payload, payload_length);
        packet.PutChar('#');
        packet.PutHex8(CalculcateChecksum (payload, payload_length));

        Log *log (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (GDBR_LOG_PACKETS));
        ConnectionStatus status = eConnectionStatusSuccess;
        const char *packet_data = packet.GetData();
        const size_t packet_length = packet.GetSize();
        size_t bytes_written = Write (packet_data, packet_length, status, NULL);
        if (log)
        {
            size_t binary_start_offset = 0;
            if (strncmp(packet_data, "$vFile:pwrite:", strlen("$vFile:pwrite:")) == 0)
            {
                const char *first_comma = strchr(packet_data, ',');
                if (first_comma)
                {
                    const char *second_comma = strchr(first_comma + 1, ',');
                    if (second_comma)
                        binary_start_offset = second_comma - packet_data + 1;
                }
            }

            // If logging was just enabled and we have history, then dump out what
            // we have to the log so we get the historical context. The Dump() call that
            // logs all of the packet will set a boolean so that we don't dump this more
            // than once
            if (!m_history.DidDumpToLog ())
                m_history.Dump (log);

            if (binary_start_offset)
            {
                StreamString strm;
                // Print non binary data header
                strm.Printf("<%4" PRIu64 "> send packet: %.*s", (uint64_t)bytes_written, (int)binary_start_offset, packet_data);
                const uint8_t *p;
                // Print binary data exactly as sent
                for (p = (uint8_t*)packet_data + binary_start_offset; *p != '#'; ++p)
                    strm.Printf("\\x%2.2x", *p);
                // Print the checksum
                strm.Printf("%*s", (int)3, p);
                log->PutCString(strm.GetString().c_str());
            }
            else
                log->Printf("<%4" PRIu64 "> send packet: %.*s", (uint64_t)bytes_written, (int)packet_length, packet_data);
        }

        m_history.AddPacket (packet.GetString(), packet_length, History::ePacketTypeSend, bytes_written);


        if (bytes_written == packet_length)
        {
            if (GetSendAcks ())
                return GetAck ();
            else
                return PacketResult::Success;
        }
        else
        {
            if (log)
                log->Printf ("error: failed to send packet: %.*s", (int)packet_length, packet_data);
        }
    }
    return PacketResult::ErrorSendFailed;
}