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9b1e1cdf23
GDBRemoteCommunicationServer classes. This involved adding a new packet named "qSpeedTest" which can test the speed of a packet send/response pairs using a wide variety of send/recv packet sizes. Added a few new connection classes: one for shared memory, and one for using mach messages (Apple only). The mach message stuff is experimental and not working yet, but added so I don't lose the code. The shared memory stuff uses pretty standard calls to setup shared memory. llvm-svn: 128837
477 lines
15 KiB
C++
477 lines
15 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 "GDBRemoteCommunicationServer.h"
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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#include "llvm/ADT/Triple.h"
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#include "lldb/Interpreter/Args.h"
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#include "lldb/Core/ConnectionFileDescriptor.h"
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#include "lldb/Core/Log.h"
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#include "lldb/Core/State.h"
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#include "lldb/Core/StreamString.h"
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#include "lldb/Host/Host.h"
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#include "lldb/Host/TimeValue.h"
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// Project includes
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#include "Utility/StringExtractorGDBRemote.h"
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#include "ProcessGDBRemote.h"
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#include "ProcessGDBRemoteLog.h"
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using namespace lldb;
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using namespace lldb_private;
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//----------------------------------------------------------------------
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// GDBRemoteCommunicationServer constructor
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//----------------------------------------------------------------------
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GDBRemoteCommunicationServer::GDBRemoteCommunicationServer() :
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GDBRemoteCommunication ("gdb-remote.server", "gdb-remote.server.rx_packet"),
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m_async_thread (LLDB_INVALID_HOST_THREAD)
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{
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}
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//----------------------------------------------------------------------
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// Destructor
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//----------------------------------------------------------------------
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GDBRemoteCommunicationServer::~GDBRemoteCommunicationServer()
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{
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}
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//void *
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//GDBRemoteCommunicationServer::AsyncThread (void *arg)
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//{
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// GDBRemoteCommunicationServer *server = (GDBRemoteCommunicationServer*) arg;
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//
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// LogSP log;// (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (GDBR_LOG_PROCESS));
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// if (log)
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// log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %i) thread starting...", __FUNCTION__, arg, process->GetID());
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//
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// StringExtractorGDBRemote packet;
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//
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// while ()
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// {
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// if (packet.
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// }
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//
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// if (log)
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// log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %i) thread exiting...", __FUNCTION__, arg, process->GetID());
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//
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// process->m_async_thread = LLDB_INVALID_HOST_THREAD;
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// return NULL;
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//}
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//
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bool
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GDBRemoteCommunicationServer::GetPacketAndSendResponse (const TimeValue* timeout_ptr,
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Error &error,
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bool &interrupt,
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bool &quit)
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{
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StringExtractorGDBRemote packet;
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if (WaitForPacketNoLock (packet, timeout_ptr))
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{
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const StringExtractorGDBRemote::ServerPacketType packet_type = packet.GetServerPacketType ();
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switch (packet_type)
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{
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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_interrupt:
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error.SetErrorString("interrupt received");
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interrupt = true;
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break;
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case StringExtractorGDBRemote::eServerPacketType_unimplemented:
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return SendUnimplementedResponse (packet.GetStringRef().c_str()) > 0;
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case StringExtractorGDBRemote::eServerPacketType_qHostInfo:
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return Handle_qHostInfo (packet);
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case StringExtractorGDBRemote::eServerPacketType_qProcessInfoPID:
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return Handle_qProcessInfoPID (packet);
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case StringExtractorGDBRemote::eServerPacketType_qfProcessInfo:
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return Handle_qfProcessInfo (packet);
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case StringExtractorGDBRemote::eServerPacketType_qsProcessInfo:
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return Handle_qsProcessInfo (packet);
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case StringExtractorGDBRemote::eServerPacketType_qUserName:
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return Handle_qUserName (packet);
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case StringExtractorGDBRemote::eServerPacketType_qGroupName:
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return Handle_qGroupName (packet);
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case StringExtractorGDBRemote::eServerPacketType_qSpeedTest:
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return Handle_qSpeedTest (packet);
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case StringExtractorGDBRemote::eServerPacketType_QStartNoAckMode:
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return Handle_QStartNoAckMode (packet);
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}
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return true;
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}
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else
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{
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if (!IsConnected())
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error.SetErrorString("lost connection");
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else
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error.SetErrorString("timeout");
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}
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return false;
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}
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size_t
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GDBRemoteCommunicationServer::SendUnimplementedResponse (const char *)
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{
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// TODO: Log the packet we aren't handling...
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return SendPacket ("");
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}
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size_t
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GDBRemoteCommunicationServer::SendErrorResponse (uint8_t err)
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{
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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 < sizeof(packet));
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return SendPacket (packet, packet_len);
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}
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size_t
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GDBRemoteCommunicationServer::SendOKResponse ()
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{
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return SendPacket ("OK");
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}
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bool
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GDBRemoteCommunicationServer::HandshakeWithClient(Error *error_ptr)
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{
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if (StartReadThread(error_ptr))
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return GetAck();
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return false;
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}
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bool
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GDBRemoteCommunicationServer::Handle_qHostInfo (StringExtractorGDBRemote &packet)
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{
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StreamString response;
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// $cputype:16777223;cpusubtype:3;ostype:Darwin;vendor:apple;endian:little;ptrsize:8;#00
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ArchSpec host_arch (Host::GetArchitecture ());
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const llvm::Triple &host_triple = host_arch.GetTriple();
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response.PutCString("triple:");
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response.PutCStringAsRawHex8(host_triple.getTriple().c_str());
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response.Printf (";ptrsize:%u;",host_arch.GetAddressByteSize());
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uint32_t cpu = host_arch.GetMachOCPUType();
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uint32_t sub = host_arch.GetMachOCPUSubType();
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if (cpu != LLDB_INVALID_CPUTYPE)
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response.Printf ("cputype:%u;", cpu);
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if (sub != LLDB_INVALID_CPUTYPE)
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response.Printf ("cpusubtype:%u;", sub);
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switch (lldb::endian::InlHostByteOrder())
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{
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case eByteOrderBig: response.PutCString ("endian:big;"); break;
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case eByteOrderLittle: response.PutCString ("endian:little;"); break;
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case eByteOrderPDP: response.PutCString ("endian:pdp;"); break;
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default: response.PutCString ("endian:unknown;"); break;
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}
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uint32_t major = UINT32_MAX;
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uint32_t minor = UINT32_MAX;
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uint32_t update = UINT32_MAX;
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if (Host::GetOSVersion (major, minor, update))
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{
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if (major != UINT32_MAX)
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{
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response.Printf("os_version:%u", major);
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if (minor != UINT32_MAX)
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{
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response.Printf(".%u", minor);
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if (update != UINT32_MAX)
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response.Printf(".%u", update);
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}
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response.PutChar(';');
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}
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}
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std::string s;
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if (Host::GetOSBuildString (s))
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{
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response.PutCString ("os_build:");
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response.PutCStringAsRawHex8(s.c_str());
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response.PutChar(';');
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}
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if (Host::GetOSKernelDescription (s))
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{
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response.PutCString ("os_kernel:");
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response.PutCStringAsRawHex8(s.c_str());
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response.PutChar(';');
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}
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if (Host::GetHostname (s))
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{
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response.PutCString ("hostname:");
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response.PutCStringAsRawHex8(s.c_str());
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response.PutChar(';');
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}
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return SendPacket (response) > 0;
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}
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static void
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CreateProcessInfoResponse (const ProcessInfo &proc_info, StreamString &response)
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{
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response.Printf ("pid:%i;ppid:%i;uid:%i;gid:%i;euid:%i;egid:%i;",
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proc_info.GetProcessID(),
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proc_info.GetParentProcessID(),
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proc_info.GetRealUserID(),
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proc_info.GetRealGroupID(),
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proc_info.GetEffectiveUserID(),
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proc_info.GetEffectiveGroupID());
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response.PutCString ("name:");
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response.PutCStringAsRawHex8(proc_info.GetName());
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response.PutChar(';');
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const ArchSpec &proc_arch = proc_info.GetArchitecture();
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if (proc_arch.IsValid())
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{
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const llvm::Triple &proc_triple = proc_arch.GetTriple();
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response.PutCString("triple:");
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response.PutCStringAsRawHex8(proc_triple.getTriple().c_str());
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response.PutChar(';');
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}
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}
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bool
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GDBRemoteCommunicationServer::Handle_qProcessInfoPID (StringExtractorGDBRemote &packet)
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{
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// Packet format: "qProcessInfoPID:%i" where %i is the pid
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packet.SetFilePos(strlen ("qProcessInfoPID:"));
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lldb::pid_t pid = packet.GetU32 (LLDB_INVALID_PROCESS_ID);
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if (pid != LLDB_INVALID_PROCESS_ID)
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{
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ProcessInfo proc_info;
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if (Host::GetProcessInfo(pid, proc_info))
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{
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StreamString response;
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CreateProcessInfoResponse (proc_info, response);
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return SendPacket (response);
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}
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}
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return SendErrorResponse (1);
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}
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bool
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GDBRemoteCommunicationServer::Handle_qfProcessInfo (StringExtractorGDBRemote &packet)
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{
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m_proc_infos_index = 0;
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m_proc_infos.Clear();
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ProcessInfoMatch match_info;
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packet.SetFilePos(strlen ("qfProcessInfo"));
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if (packet.GetChar() == ':')
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{
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std::string key;
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std::string value;
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while (packet.GetNameColonValue(key, value))
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{
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bool success = true;
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if (key.compare("name") == 0)
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{
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StringExtractor extractor;
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extractor.GetStringRef().swap(value);
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extractor.GetHexByteString (value);
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match_info.GetProcessInfo().SetName (value.c_str());
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}
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else if (key.compare("name_match") == 0)
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{
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if (value.compare("equals") == 0)
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{
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match_info.SetNameMatchType (eNameMatchEquals);
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}
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else if (value.compare("starts_with") == 0)
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{
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match_info.SetNameMatchType (eNameMatchStartsWith);
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}
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else if (value.compare("ends_with") == 0)
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{
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match_info.SetNameMatchType (eNameMatchEndsWith);
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}
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else if (value.compare("contains") == 0)
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{
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match_info.SetNameMatchType (eNameMatchContains);
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}
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else if (value.compare("regex") == 0)
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{
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match_info.SetNameMatchType (eNameMatchRegularExpression);
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}
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else
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{
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success = false;
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}
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}
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else if (key.compare("pid") == 0)
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{
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match_info.GetProcessInfo().SetProcessID (Args::StringToUInt32(value.c_str(), LLDB_INVALID_PROCESS_ID, 0, &success));
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}
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else if (key.compare("parent_pid") == 0)
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{
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match_info.GetProcessInfo().SetParentProcessID (Args::StringToUInt32(value.c_str(), LLDB_INVALID_PROCESS_ID, 0, &success));
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}
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else if (key.compare("uid") == 0)
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{
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match_info.GetProcessInfo().SetRealUserID (Args::StringToUInt32(value.c_str(), UINT32_MAX, 0, &success));
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}
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else if (key.compare("gid") == 0)
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{
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match_info.GetProcessInfo().SetRealGroupID (Args::StringToUInt32(value.c_str(), UINT32_MAX, 0, &success));
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}
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else if (key.compare("euid") == 0)
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{
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match_info.GetProcessInfo().SetEffectiveUserID (Args::StringToUInt32(value.c_str(), UINT32_MAX, 0, &success));
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}
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else if (key.compare("egid") == 0)
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{
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match_info.GetProcessInfo().SetEffectiveGroupID (Args::StringToUInt32(value.c_str(), UINT32_MAX, 0, &success));
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}
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else if (key.compare("all_users") == 0)
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{
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match_info.SetMatchAllUsers(Args::StringToBoolean(value.c_str(), false, &success));
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}
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else if (key.compare("triple") == 0)
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{
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match_info.GetProcessInfo().GetArchitecture().SetTriple(value.c_str());
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}
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else
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{
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success = false;
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}
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if (!success)
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return SendErrorResponse (2);
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}
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}
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if (Host::FindProcesses (match_info, m_proc_infos))
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{
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// We found something, return the first item by calling the get
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// subsequent process info packet handler...
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return Handle_qsProcessInfo (packet);
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}
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return SendErrorResponse (3);
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}
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bool
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GDBRemoteCommunicationServer::Handle_qsProcessInfo (StringExtractorGDBRemote &packet)
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{
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if (m_proc_infos_index < m_proc_infos.GetSize())
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{
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StreamString response;
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CreateProcessInfoResponse (m_proc_infos.GetProcessInfoAtIndex(m_proc_infos_index), response);
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++m_proc_infos_index;
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return SendPacket (response);
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}
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return SendErrorResponse (4);
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}
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bool
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GDBRemoteCommunicationServer::Handle_qUserName (StringExtractorGDBRemote &packet)
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{
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// Packet format: "qUserName:%i" where %i is the uid
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packet.SetFilePos(strlen ("qUserName:"));
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uint32_t uid = packet.GetU32 (UINT32_MAX);
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if (uid != UINT32_MAX)
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{
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std::string name;
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if (Host::GetUserName (uid, name))
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{
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StreamString response;
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response.PutCStringAsRawHex8 (name.c_str());
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return SendPacket (response);
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}
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}
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return SendErrorResponse (5);
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}
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bool
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GDBRemoteCommunicationServer::Handle_qGroupName (StringExtractorGDBRemote &packet)
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{
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// Packet format: "qGroupName:%i" where %i is the gid
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packet.SetFilePos(strlen ("qGroupName:"));
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uint32_t gid = packet.GetU32 (UINT32_MAX);
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if (gid != UINT32_MAX)
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{
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std::string name;
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if (Host::GetGroupName (gid, name))
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{
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StreamString response;
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response.PutCStringAsRawHex8 (name.c_str());
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return SendPacket (response);
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}
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}
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return SendErrorResponse (6);
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}
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bool
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GDBRemoteCommunicationServer::Handle_qSpeedTest (StringExtractorGDBRemote &packet)
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{
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packet.SetFilePos(strlen ("qSpeedTest:"));
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std::string key;
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std::string value;
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bool success = packet.GetNameColonValue(key, value);
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if (success && key.compare("response_size") == 0)
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{
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uint32_t response_size = Args::StringToUInt32(value.c_str(), 0, 0, &success);
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if (success)
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{
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if (response_size == 0)
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return SendOKResponse();
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StreamString response;
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uint32_t bytes_left = response_size;
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response.PutCString("data:");
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while (bytes_left > 0)
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{
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if (bytes_left >= 26)
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{
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response.PutCString("ABCDEFGHIJKLMNOPQRSTUVWXYZ");
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bytes_left -= 26;
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}
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else
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{
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response.Printf ("%*.*s;", bytes_left, bytes_left, "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
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bytes_left = 0;
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}
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}
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return SendPacket (response);
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}
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}
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return SendErrorResponse (7);
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}
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bool
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GDBRemoteCommunicationServer::Handle_QStartNoAckMode (StringExtractorGDBRemote &packet)
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{
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// Send response first before changing m_send_acks to we ack this packet
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SendOKResponse ();
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m_send_acks = false;
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return true;
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}
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