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https://github.com/capstone-engine/llvm-capstone.git
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97206d5727
This renames the LLDB error class to Status, as discussed on the lldb-dev mailing list. A change of this magnitude cannot easily be done without find and replace, but that has potential to catch unwanted occurrences of common strings such as "Error". Every effort was made to find all the obvious things such as the word "Error" appearing in a string, etc, but it's possible there are still some lingering occurences left around. Hopefully nothing too serious. llvm-svn: 302872
121 lines
3.8 KiB
C++
121 lines
3.8 KiB
C++
//===-- GDBRemoteCommunicationServer.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 <errno.h>
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#include "lldb/Host/Config.h"
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#include "GDBRemoteCommunicationServer.h"
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// C Includes
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// C++ Includes
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#include <cstring>
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// Project includes
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#include "ProcessGDBRemoteLog.h"
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#include "Utility/StringExtractorGDBRemote.h"
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using namespace lldb;
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using namespace lldb_private;
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using namespace lldb_private::process_gdb_remote;
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GDBRemoteCommunicationServer::GDBRemoteCommunicationServer(
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const char *comm_name, const char *listener_name)
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: GDBRemoteCommunication(comm_name, listener_name), m_exit_now(false) {}
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GDBRemoteCommunicationServer::~GDBRemoteCommunicationServer() {}
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void GDBRemoteCommunicationServer::RegisterPacketHandler(
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StringExtractorGDBRemote::ServerPacketType packet_type,
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PacketHandler handler) {
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m_packet_handlers[packet_type] = std::move(handler);
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}
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GDBRemoteCommunication::PacketResult
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GDBRemoteCommunicationServer::GetPacketAndSendResponse(
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Timeout<std::micro> timeout, Status &error, bool &interrupt, bool &quit) {
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StringExtractorGDBRemote packet;
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PacketResult packet_result = WaitForPacketNoLock(packet, timeout, false);
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if (packet_result == PacketResult::Success) {
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const StringExtractorGDBRemote::ServerPacketType packet_type =
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packet.GetServerPacketType();
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switch (packet_type) {
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case StringExtractorGDBRemote::eServerPacketType_nack:
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case StringExtractorGDBRemote::eServerPacketType_ack:
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break;
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case StringExtractorGDBRemote::eServerPacketType_invalid:
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error.SetErrorString("invalid packet");
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quit = true;
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break;
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case StringExtractorGDBRemote::eServerPacketType_unimplemented:
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packet_result = SendUnimplementedResponse(packet.GetStringRef().c_str());
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break;
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default:
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auto handler_it = m_packet_handlers.find(packet_type);
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if (handler_it == m_packet_handlers.end())
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packet_result =
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SendUnimplementedResponse(packet.GetStringRef().c_str());
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else
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packet_result = handler_it->second(packet, error, interrupt, quit);
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break;
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}
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} else {
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if (!IsConnected()) {
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error.SetErrorString("lost connection");
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quit = true;
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} else {
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error.SetErrorString("timeout");
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}
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}
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// Check if anything occurred that would force us to want to exit.
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if (m_exit_now)
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quit = true;
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return packet_result;
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}
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GDBRemoteCommunication::PacketResult
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GDBRemoteCommunicationServer::SendUnimplementedResponse(const char *) {
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// TODO: Log the packet we aren't handling...
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return SendPacketNoLock("");
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}
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GDBRemoteCommunication::PacketResult
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GDBRemoteCommunicationServer::SendErrorResponse(uint8_t err) {
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char packet[16];
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int packet_len = ::snprintf(packet, sizeof(packet), "E%2.2x", err);
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assert(packet_len < (int)sizeof(packet));
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return SendPacketNoLock(llvm::StringRef(packet, packet_len));
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}
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GDBRemoteCommunication::PacketResult
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GDBRemoteCommunicationServer::SendIllFormedResponse(
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const StringExtractorGDBRemote &failed_packet, const char *message) {
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Log *log(ProcessGDBRemoteLog::GetLogIfAllCategoriesSet(GDBR_LOG_PACKETS));
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if (log)
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log->Printf("GDBRemoteCommunicationServer::%s: ILLFORMED: '%s' (%s)",
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__FUNCTION__, failed_packet.GetStringRef().c_str(),
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message ? message : "");
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return SendErrorResponse(0x03);
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}
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GDBRemoteCommunication::PacketResult
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GDBRemoteCommunicationServer::SendOKResponse() {
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return SendPacketNoLock("OK");
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}
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bool GDBRemoteCommunicationServer::HandshakeWithClient() {
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return GetAck() == PacketResult::Success;
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}
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