dce502ede0
- If you download and build the sources in the Xcode project, x86_64 builds by default using the "llvm.zip" checkpointed LLVM. - If you delete the "lldb/llvm.zip" and the "lldb/llvm" folder, and build the Xcode project will download the right LLVM sources and build them from scratch - If you have a "lldb/llvm" folder already that contains a "lldb/llvm/lib" directory, we will use the sources you have placed in the LLDB directory. Python can now be disabled for platforms that don't support it. Changed the way the libllvmclang.a files get used. They now all get built into arch specific directories and never get merged into universal binaries as this was causing issues where you would have to go and delete the file if you wanted to build an extra architecture slice. llvm-svn: 143678
1104 lines
43 KiB
C++
1104 lines
43 KiB
C++
//===-- CommunicationKDP.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 "CommunicationKDP.h"
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// C Includes
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#include <limits.h>
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#include <string.h>
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// C++ Includes
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#include "llvm/Support/MachO.h"
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// Other libraries and framework includes
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#include "lldb/Core/DataBufferHeap.h"
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#include "lldb/Core/DataExtractor.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/Host/FileSpec.h"
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#include "lldb/Host/Host.h"
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#include "lldb/Host/TimeValue.h"
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#include "lldb/Target/Process.h"
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// Project includes
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#include "ProcessKDPLog.h"
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using namespace lldb;
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using namespace lldb_private;
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//----------------------------------------------------------------------
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// CommunicationKDP constructor
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//----------------------------------------------------------------------
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CommunicationKDP::CommunicationKDP (const char *comm_name) :
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Communication(comm_name),
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m_addr_byte_size (4),
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m_byte_order (eByteOrderLittle),
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m_packet_timeout (1),
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m_sequence_mutex (Mutex::eMutexTypeRecursive),
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m_private_is_running (false),
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m_session_key (0u),
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m_request_sequence_id (0u),
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m_exception_sequence_id (0u),
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m_kdp_version_version (0u),
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m_kdp_version_feature (0u),
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m_kdp_hostinfo_cpu_mask (0u),
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m_kdp_hostinfo_cpu_type (0u),
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m_kdp_hostinfo_cpu_subtype (0u)
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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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CommunicationKDP::~CommunicationKDP()
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{
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if (IsConnected())
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{
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Disconnect();
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}
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}
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bool
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CommunicationKDP::SendRequestPacket (const PacketStreamType &request_packet)
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{
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Mutex::Locker locker(m_sequence_mutex);
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return SendRequestPacketNoLock (request_packet);
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}
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#if 0
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typedef struct {
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uint8_t request; // Either: CommandType | ePacketTypeRequest, or CommandType | ePacketTypeReply
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uint8_t sequence;
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uint16_t length; // Length of entire packet including this header
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uint32_t key; // Session key
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} kdp_hdr_t;
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#endif
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void
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CommunicationKDP::MakeRequestPacketHeader (CommandType request_type,
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PacketStreamType &request_packet,
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uint16_t request_length)
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{
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request_packet.Clear();
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request_packet.PutHex8 (request_type | ePacketTypeRequest); // Set the request type
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request_packet.PutHex8 (m_request_sequence_id++); // Sequence number
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request_packet.PutHex16 (request_length); // Length of the packet including this header
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request_packet.PutHex32 (m_session_key); // Session key
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}
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bool
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CommunicationKDP::SendRequestAndGetReply (const CommandType command,
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const uint8_t request_sequence_id,
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const PacketStreamType &request_packet,
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DataExtractor &reply_packet)
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{
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Mutex::Locker locker(m_sequence_mutex);
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if (SendRequestPacketNoLock(request_packet))
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{
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if (WaitForPacketWithTimeoutMicroSecondsNoLock (reply_packet, GetPacketTimeoutInMicroSeconds ()))
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{
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uint32_t offset = 0;
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const uint8_t reply_command = reply_packet.GetU8 (&offset);
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const uint8_t reply_sequence_id = reply_packet.GetU8 (&offset);
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if ((reply_command & eCommandTypeMask) == command)
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{
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if (request_sequence_id == reply_sequence_id)
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return true;
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}
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}
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}
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reply_packet.Clear();
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return false;
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}
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bool
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CommunicationKDP::SendRequestPacketNoLock (const PacketStreamType &request_packet)
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{
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if (IsConnected())
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{
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const char *packet_data = request_packet.GetData();
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const size_t packet_size = request_packet.GetSize();
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LogSP log (ProcessKDPLog::GetLogIfAllCategoriesSet (KDP_LOG_PACKETS));
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if (log)
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{
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PacketStreamType log_strm;
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DumpPacket (log_strm, packet_data, packet_size);
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log->Printf("%.*s", (uint32_t)log_strm.GetSize(), log_strm.GetData());
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}
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ConnectionStatus status = eConnectionStatusSuccess;
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size_t bytes_written = Write (packet_data,
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packet_size,
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status,
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NULL);
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if (bytes_written == packet_size)
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return true;
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if (log)
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log->Printf ("error: failed to send packet entire packet %zu of %zu bytes sent", bytes_written, packet_size);
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}
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return false;
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}
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bool
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CommunicationKDP::GetSequenceMutex (Mutex::Locker& locker)
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{
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return locker.TryLock (m_sequence_mutex.GetMutex());
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}
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bool
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CommunicationKDP::WaitForNotRunningPrivate (const TimeValue *timeout_ptr)
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{
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return m_private_is_running.WaitForValueEqualTo (false, timeout_ptr, NULL);
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}
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size_t
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CommunicationKDP::WaitForPacketWithTimeoutMicroSeconds (DataExtractor &packet, uint32_t timeout_usec)
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{
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Mutex::Locker locker(m_sequence_mutex);
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return WaitForPacketWithTimeoutMicroSecondsNoLock (packet, timeout_usec);
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}
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size_t
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CommunicationKDP::WaitForPacketWithTimeoutMicroSecondsNoLock (DataExtractor &packet, uint32_t timeout_usec)
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{
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uint8_t buffer[8192];
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Error error;
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LogSP log (ProcessKDPLog::GetLogIfAllCategoriesSet (KDP_LOG_PACKETS | KDP_LOG_VERBOSE));
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// Check for a packet from our cache first without trying any reading...
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if (CheckForPacket (NULL, 0, packet))
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return packet.GetByteSize();
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bool timed_out = false;
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while (IsConnected() && !timed_out)
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{
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lldb::ConnectionStatus status = eConnectionStatusNoConnection;
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size_t bytes_read = Read (buffer, sizeof(buffer), timeout_usec, status, &error);
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if (log)
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log->Printf ("%s: Read (buffer, (sizeof(buffer), timeout_usec = 0x%x, status = %s, error = %s) => bytes_read = %zu",
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__PRETTY_FUNCTION__,
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timeout_usec,
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Communication::ConnectionStatusAsCString (status),
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error.AsCString(),
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bytes_read);
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if (bytes_read > 0)
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{
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if (CheckForPacket (buffer, bytes_read, packet))
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return packet.GetByteSize();
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}
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else
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{
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switch (status)
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{
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case eConnectionStatusTimedOut:
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timed_out = true;
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break;
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case eConnectionStatusSuccess:
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//printf ("status = success but error = %s\n", error.AsCString("<invalid>"));
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break;
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case eConnectionStatusEndOfFile:
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case eConnectionStatusNoConnection:
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case eConnectionStatusLostConnection:
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case eConnectionStatusError:
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Disconnect();
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break;
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}
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}
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}
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packet.Clear ();
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return 0;
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}
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bool
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CommunicationKDP::CheckForPacket (const uint8_t *src, size_t src_len, DataExtractor &packet)
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{
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// Put the packet data into the buffer in a thread safe fashion
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Mutex::Locker locker(m_bytes_mutex);
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LogSP log (ProcessKDPLog::GetLogIfAllCategoriesSet (KDP_LOG_PACKETS));
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if (src && src_len > 0)
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{
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if (log && log->GetVerbose())
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{
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PacketStreamType log_strm;
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DataExtractor::DumpHexBytes (&log_strm, src, src_len, UINT32_MAX, LLDB_INVALID_ADDRESS);
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log->Printf ("CommunicationKDP::%s adding %u bytes: %s",
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__FUNCTION__,
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(uint32_t)src_len,
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log_strm.GetData());
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}
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m_bytes.append ((const char *)src, src_len);
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}
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// Make sure we at least have enough bytes for a packet header
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const size_t bytes_available = m_bytes.size();
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if (bytes_available >= 8)
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{
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packet.SetData (&m_bytes[0], bytes_available, m_byte_order);
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uint32_t offset = 0;
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uint8_t reply_command = packet.GetU8(&offset);
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switch (reply_command)
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{
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case ePacketTypeReply | KDP_CONNECT:
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case ePacketTypeReply | KDP_DISCONNECT:
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case ePacketTypeReply | KDP_HOSTINFO:
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case ePacketTypeReply | KDP_VERSION:
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case ePacketTypeReply | KDP_MAXBYTES:
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case ePacketTypeReply | KDP_READMEM:
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case ePacketTypeReply | KDP_WRITEMEM:
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case ePacketTypeReply | KDP_READREGS:
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case ePacketTypeReply | KDP_WRITEREGS:
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case ePacketTypeReply | KDP_LOAD:
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case ePacketTypeReply | KDP_IMAGEPATH:
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case ePacketTypeReply | KDP_SUSPEND:
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case ePacketTypeReply | KDP_RESUMECPUS:
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case ePacketTypeReply | KDP_EXCEPTION:
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case ePacketTypeReply | KDP_TERMINATION:
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case ePacketTypeReply | KDP_BREAKPOINT_SET:
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case ePacketTypeReply | KDP_BREAKPOINT_REMOVE:
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case ePacketTypeReply | KDP_REGIONS:
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case ePacketTypeReply | KDP_REATTACH:
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case ePacketTypeReply | KDP_HOSTREBOOT:
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case ePacketTypeReply | KDP_READMEM64:
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case ePacketTypeReply | KDP_WRITEMEM64:
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case ePacketTypeReply | KDP_BREAKPOINT_SET64:
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case ePacketTypeReply | KDP_BREAKPOINT_REMOVE64:
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case ePacketTypeReply | KDP_KERNELVERSION:
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{
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offset = 2;
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const uint16_t length = packet.GetU16 (&offset);
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if (length <= bytes_available)
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{
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// We have an entire packet ready, we need to copy the data
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// bytes into a buffer that will be owned by the packet and
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// erase the bytes from our communcation buffer "m_bytes"
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packet.SetData (DataBufferSP (new DataBufferHeap (&m_bytes[0], length)));
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m_bytes.erase (0, length);
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if (log)
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{
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PacketStreamType log_strm;
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DumpPacket (log_strm, packet);
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log->Printf("%.*s", (uint32_t)log_strm.GetSize(), log_strm.GetData());
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}
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return true;
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}
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}
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break;
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default:
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// Unrecognized reply command byte, erase this byte and try to get back on track
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if (log)
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log->Printf ("CommunicationKDP::%s: tossing junk byte: 0x%2.2x",
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__FUNCTION__,
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(uint8_t)m_bytes[0]);
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m_bytes.erase(0, 1);
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break;
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}
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}
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packet.Clear();
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return false;
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}
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bool
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CommunicationKDP::SendRequestConnect (uint16_t reply_port,
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uint16_t exc_port,
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const char *greeting)
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{
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PacketStreamType request_packet (Stream::eBinary, m_addr_byte_size, m_byte_order);
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if (greeting == NULL)
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greeting = "";
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const CommandType command = KDP_CONNECT;
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// Length is 82 uint16_t and the length of the greeting C string with the terminating NULL
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const uint32_t command_length = 8 + 2 + 2 + ::strlen(greeting) + 1;
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const uint32_t request_sequence_id = m_request_sequence_id;
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MakeRequestPacketHeader (command, request_packet, command_length);
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// Always send connect ports as little endian
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request_packet.SetByteOrder (eByteOrderLittle);
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request_packet.PutHex16 (reply_port);
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request_packet.PutHex16 (exc_port);
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request_packet.SetByteOrder (m_byte_order);
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request_packet.PutCString (greeting);
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DataExtractor reply_packet;
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return SendRequestAndGetReply (command, request_sequence_id, request_packet, reply_packet);
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}
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void
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CommunicationKDP::ClearKDPSettings ()
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{
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m_request_sequence_id = 0;
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m_kdp_version_version = 0;
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m_kdp_version_feature = 0;
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m_kdp_hostinfo_cpu_mask = 0;
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m_kdp_hostinfo_cpu_type = 0;
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m_kdp_hostinfo_cpu_subtype = 0;
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}
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bool
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CommunicationKDP::SendRequestReattach (uint16_t reply_port)
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{
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PacketStreamType request_packet (Stream::eBinary, m_addr_byte_size, m_byte_order);
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const CommandType command = KDP_REATTACH;
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// Length is 8 bytes for the header plus 2 bytes for the reply UDP port
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const uint32_t command_length = 8 + 2;
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const uint32_t request_sequence_id = m_request_sequence_id;
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MakeRequestPacketHeader (command, request_packet, command_length);
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// Always send connect ports as little endian
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request_packet.SetByteOrder (eByteOrderLittle);
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request_packet.PutHex16(reply_port);
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request_packet.SetByteOrder (m_byte_order);
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DataExtractor reply_packet;
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if (SendRequestAndGetReply (command, request_sequence_id, request_packet, reply_packet))
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{
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// Reset the sequence ID to zero for reattach
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ClearKDPSettings ();
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uint32_t offset = 4;
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m_session_key = reply_packet.GetU32 (&offset);
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return true;
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}
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return false;
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}
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uint32_t
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CommunicationKDP::GetVersion ()
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{
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if (!VersionIsValid())
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SendRequestVersion();
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return m_kdp_version_version;
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}
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uint32_t
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CommunicationKDP::GetFeatureFlags ()
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{
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if (!VersionIsValid())
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SendRequestVersion();
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return m_kdp_version_feature;
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}
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bool
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CommunicationKDP::SendRequestVersion ()
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{
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PacketStreamType request_packet (Stream::eBinary, m_addr_byte_size, m_byte_order);
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const CommandType command = KDP_VERSION;
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const uint32_t command_length = 8;
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const uint32_t request_sequence_id = m_request_sequence_id;
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MakeRequestPacketHeader (command, request_packet, command_length);
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DataExtractor reply_packet;
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if (SendRequestAndGetReply (command, request_sequence_id, request_packet, reply_packet))
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{
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uint32_t offset = 8;
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m_kdp_version_version = reply_packet.GetU32 (&offset);
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m_kdp_version_feature = reply_packet.GetU32 (&offset);
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return true;
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}
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return false;
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}
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#if 0 // Disable KDP_IMAGEPATH for now, it seems to hang the KDP connection...
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const char *
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CommunicationKDP::GetImagePath ()
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{
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if (m_image_path.empty())
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SendRequestImagePath();
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return m_image_path.c_str();
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}
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bool
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CommunicationKDP::SendRequestImagePath ()
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{
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PacketStreamType request_packet (Stream::eBinary, m_addr_byte_size, m_byte_order);
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const CommandType command = KDP_IMAGEPATH;
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const uint32_t command_length = 8;
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const uint32_t request_sequence_id = m_request_sequence_id;
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MakeRequestPacketHeader (command, request_packet, command_length);
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DataExtractor reply_packet;
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if (SendRequestAndGetReply (command, request_sequence_id, request_packet, reply_packet))
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{
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const char *path = reply_packet.PeekCStr(8);
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if (path && path[0])
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m_kernel_version.assign (path);
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return true;
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}
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return false;
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}
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#endif
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uint32_t
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CommunicationKDP::GetCPUMask ()
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{
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if (!HostInfoIsValid())
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SendRequestHostInfo();
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return m_kdp_hostinfo_cpu_mask;
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}
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uint32_t
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CommunicationKDP::GetCPUType ()
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{
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if (!HostInfoIsValid())
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SendRequestHostInfo();
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return m_kdp_hostinfo_cpu_type;
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}
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uint32_t
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CommunicationKDP::GetCPUSubtype ()
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{
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if (!HostInfoIsValid())
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SendRequestHostInfo();
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return m_kdp_hostinfo_cpu_subtype;
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}
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bool
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CommunicationKDP::SendRequestHostInfo ()
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{
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PacketStreamType request_packet (Stream::eBinary, m_addr_byte_size, m_byte_order);
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const CommandType command = KDP_HOSTINFO;
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const uint32_t command_length = 8;
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const uint32_t request_sequence_id = m_request_sequence_id;
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MakeRequestPacketHeader (command, request_packet, command_length);
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DataExtractor reply_packet;
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if (SendRequestAndGetReply (command, request_sequence_id, request_packet, reply_packet))
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{
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uint32_t offset = 8;
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m_kdp_hostinfo_cpu_mask = reply_packet.GetU32 (&offset);
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m_kdp_hostinfo_cpu_type = reply_packet.GetU32 (&offset);
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m_kdp_hostinfo_cpu_subtype = reply_packet.GetU32 (&offset);
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ArchSpec kernel_arch;
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kernel_arch.SetArchitecture (eArchTypeMachO,
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m_kdp_hostinfo_cpu_type,
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m_kdp_hostinfo_cpu_subtype);
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m_addr_byte_size = kernel_arch.GetAddressByteSize();
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m_byte_order = kernel_arch.GetByteOrder();
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return true;
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}
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return false;
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}
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const char *
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CommunicationKDP::GetKernelVersion ()
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{
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if (m_kernel_version.empty())
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SendRequestKernelVersion ();
|
|
return m_kernel_version.c_str();
|
|
}
|
|
|
|
bool
|
|
CommunicationKDP::SendRequestKernelVersion ()
|
|
{
|
|
PacketStreamType request_packet (Stream::eBinary, m_addr_byte_size, m_byte_order);
|
|
const CommandType command = KDP_KERNELVERSION;
|
|
const uint32_t command_length = 8;
|
|
const uint32_t request_sequence_id = m_request_sequence_id;
|
|
MakeRequestPacketHeader (command, request_packet, command_length);
|
|
DataExtractor reply_packet;
|
|
if (SendRequestAndGetReply (command, request_sequence_id, request_packet, reply_packet))
|
|
{
|
|
const char *kernel_version_cstr = reply_packet.PeekCStr(8);
|
|
if (kernel_version_cstr && kernel_version_cstr[0])
|
|
m_kernel_version.assign (kernel_version_cstr);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
CommunicationKDP::SendRequestDisconnect ()
|
|
{
|
|
PacketStreamType request_packet (Stream::eBinary, m_addr_byte_size, m_byte_order);
|
|
const CommandType command = KDP_DISCONNECT;
|
|
const uint32_t command_length = 8;
|
|
const uint32_t request_sequence_id = m_request_sequence_id;
|
|
MakeRequestPacketHeader (command, request_packet, command_length);
|
|
DataExtractor reply_packet;
|
|
if (SendRequestAndGetReply (command, request_sequence_id, request_packet, reply_packet))
|
|
{
|
|
// Are we supposed to get a reply for disconnect?
|
|
}
|
|
ClearKDPSettings ();
|
|
return true;
|
|
}
|
|
|
|
uint32_t
|
|
CommunicationKDP::SendRequestReadMemory (lldb::addr_t addr,
|
|
void *dst,
|
|
uint32_t dst_len,
|
|
Error &error)
|
|
{
|
|
PacketStreamType request_packet (Stream::eBinary, m_addr_byte_size, m_byte_order);
|
|
bool use_64 = (GetVersion() >= 11);
|
|
uint32_t command_addr_byte_size = use_64 ? 8 : 4;
|
|
const CommandType command = use_64 ? KDP_READMEM64 : KDP_READMEM;
|
|
// Size is header + address size + uint32_t length
|
|
const uint32_t command_length = 8 + command_addr_byte_size + 4;
|
|
const uint32_t request_sequence_id = m_request_sequence_id;
|
|
MakeRequestPacketHeader (command, request_packet, command_length);
|
|
request_packet.PutMaxHex64 (addr, command_addr_byte_size);
|
|
request_packet.PutHex32 (dst_len);
|
|
DataExtractor reply_packet;
|
|
if (SendRequestAndGetReply (command, request_sequence_id, request_packet, reply_packet))
|
|
{
|
|
uint32_t offset = 8;
|
|
uint32_t kdp_error = reply_packet.GetU32 (&offset);
|
|
uint32_t src_len = reply_packet.GetByteSize() - 12;
|
|
|
|
if (src_len > 0)
|
|
{
|
|
const void *src = reply_packet.GetData(&offset, src_len);
|
|
if (src)
|
|
{
|
|
::memcpy (dst, src, src_len);
|
|
error.Clear();
|
|
return src_len;
|
|
}
|
|
}
|
|
if (kdp_error)
|
|
error.SetErrorStringWithFormat ("kdp read memory failed (error %u)", kdp_error);
|
|
else
|
|
error.SetErrorString ("kdp read memory failed");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
uint32_t
|
|
CommunicationKDP::SendRequestWriteMemory (lldb::addr_t addr,
|
|
const void *src,
|
|
uint32_t src_len,
|
|
Error &error)
|
|
{
|
|
PacketStreamType request_packet (Stream::eBinary, m_addr_byte_size, m_byte_order);
|
|
bool use_64 = (GetVersion() >= 11);
|
|
uint32_t command_addr_byte_size = use_64 ? 8 : 4;
|
|
const CommandType command = use_64 ? KDP_WRITEMEM64 : KDP_WRITEMEM;
|
|
// Size is header + address size + uint32_t length
|
|
const uint32_t command_length = 8 + command_addr_byte_size + 4;
|
|
const uint32_t request_sequence_id = m_request_sequence_id;
|
|
MakeRequestPacketHeader (command, request_packet, command_length);
|
|
request_packet.PutMaxHex64 (addr, command_addr_byte_size);
|
|
request_packet.PutHex32 (src_len);
|
|
request_packet.PutBytesAsRawHex8(src, src_len);
|
|
|
|
DataExtractor reply_packet;
|
|
if (SendRequestAndGetReply (command, request_sequence_id, request_packet, reply_packet))
|
|
{
|
|
uint32_t offset = 8;
|
|
uint32_t kdp_error = reply_packet.GetU32 (&offset);
|
|
if (kdp_error)
|
|
error.SetErrorStringWithFormat ("kdp write memory failed (error %u)", kdp_error);
|
|
else
|
|
{
|
|
error.Clear();
|
|
return src_len;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
const char *
|
|
CommunicationKDP::GetCommandAsCString (uint8_t command)
|
|
{
|
|
switch (command)
|
|
{
|
|
case KDP_CONNECT: return "KDP_CONNECT";
|
|
case KDP_DISCONNECT: return "KDP_DISCONNECT";
|
|
case KDP_HOSTINFO: return "KDP_HOSTINFO";
|
|
case KDP_VERSION: return "KDP_VERSION";
|
|
case KDP_MAXBYTES: return "KDP_MAXBYTES";
|
|
case KDP_READMEM: return "KDP_READMEM";
|
|
case KDP_WRITEMEM: return "KDP_WRITEMEM";
|
|
case KDP_READREGS: return "KDP_READREGS";
|
|
case KDP_WRITEREGS: return "KDP_WRITEREGS";
|
|
case KDP_LOAD: return "KDP_LOAD";
|
|
case KDP_IMAGEPATH: return "KDP_IMAGEPATH";
|
|
case KDP_SUSPEND: return "KDP_SUSPEND";
|
|
case KDP_RESUMECPUS: return "KDP_RESUMECPUS";
|
|
case KDP_EXCEPTION: return "KDP_EXCEPTION";
|
|
case KDP_TERMINATION: return "KDP_TERMINATION";
|
|
case KDP_BREAKPOINT_SET: return "KDP_BREAKPOINT_SET";
|
|
case KDP_BREAKPOINT_REMOVE: return "KDP_BREAKPOINT_REMOVE";
|
|
case KDP_REGIONS: return "KDP_REGIONS";
|
|
case KDP_REATTACH: return "KDP_REATTACH";
|
|
case KDP_HOSTREBOOT: return "KDP_HOSTREBOOT";
|
|
case KDP_READMEM64: return "KDP_READMEM64";
|
|
case KDP_WRITEMEM64: return "KDP_WRITEMEM64";
|
|
case KDP_BREAKPOINT_SET64: return "KDP_BREAKPOINT64_SET";
|
|
case KDP_BREAKPOINT_REMOVE64: return "KDP_BREAKPOINT64_REMOVE";
|
|
case KDP_KERNELVERSION: return "KDP_KERNELVERSION";
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
CommunicationKDP::DumpPacket (Stream &s, const void *data, uint32_t data_len)
|
|
{
|
|
DataExtractor extractor (data, data_len, m_byte_order, m_addr_byte_size);
|
|
DumpPacket (s, extractor);
|
|
}
|
|
|
|
void
|
|
CommunicationKDP::DumpPacket (Stream &s, const DataExtractor& packet)
|
|
{
|
|
const char *error_desc = NULL;
|
|
if (packet.GetByteSize() < 8)
|
|
{
|
|
error_desc = "error: invalid packet (too short): ";
|
|
}
|
|
else
|
|
{
|
|
uint32_t offset = 0;
|
|
const uint8_t first_packet_byte = packet.GetU8 (&offset);
|
|
const uint8_t sequence_id = packet.GetU8 (&offset);
|
|
const uint16_t length = packet.GetU16 (&offset);
|
|
const uint32_t key = packet.GetU32 (&offset);
|
|
const CommandType command = ExtractCommand (first_packet_byte);
|
|
const char *command_name = GetCommandAsCString (command);
|
|
if (command_name)
|
|
{
|
|
const bool is_reply = ExtractIsReply(first_packet_byte);
|
|
s.Printf ("%s {%u:%u} <0x%4.4x> %s",
|
|
is_reply ? "<--" : "-->",
|
|
key,
|
|
sequence_id,
|
|
length,
|
|
command_name);
|
|
|
|
if (is_reply)
|
|
{
|
|
// Dump request reply packets
|
|
switch (command)
|
|
{
|
|
// Commands that return a single 32 bit error
|
|
case KDP_CONNECT:
|
|
case KDP_WRITEMEM:
|
|
case KDP_WRITEMEM64:
|
|
case KDP_BREAKPOINT_SET:
|
|
case KDP_BREAKPOINT_REMOVE:
|
|
case KDP_BREAKPOINT_SET64:
|
|
case KDP_BREAKPOINT_REMOVE64:
|
|
case KDP_WRITEREGS:
|
|
case KDP_LOAD:
|
|
{
|
|
const uint32_t error = packet.GetU32 (&offset);
|
|
s.Printf(" (error=0x%8.8x)", error);
|
|
}
|
|
break;
|
|
|
|
case KDP_DISCONNECT:
|
|
case KDP_REATTACH:
|
|
case KDP_HOSTREBOOT:
|
|
case KDP_SUSPEND:
|
|
case KDP_RESUMECPUS:
|
|
case KDP_EXCEPTION:
|
|
case KDP_TERMINATION:
|
|
// No return value for the reply, just the header to ack
|
|
s.PutCString(" ()");
|
|
break;
|
|
|
|
case KDP_HOSTINFO:
|
|
{
|
|
const uint32_t cpu_mask = packet.GetU32 (&offset);
|
|
const uint32_t cpu_type = packet.GetU32 (&offset);
|
|
const uint32_t cpu_subtype = packet.GetU32 (&offset);
|
|
s.Printf(" (cpu_mask=0x%8.8x, cpu_type=0x%8.8x, cpu_subtype=0x%8.8x)", cpu_mask, cpu_type, cpu_subtype);
|
|
}
|
|
break;
|
|
|
|
case KDP_VERSION:
|
|
{
|
|
const uint32_t version = packet.GetU32 (&offset);
|
|
const uint32_t feature = packet.GetU32 (&offset);
|
|
s.Printf(" (version=0x%8.8x, feature=0x%8.8x)", version, feature);
|
|
}
|
|
break;
|
|
|
|
case KDP_REGIONS:
|
|
{
|
|
const uint32_t region_count = packet.GetU32 (&offset);
|
|
s.Printf(" (count = %u", region_count);
|
|
for (uint32_t i=0; i<region_count; ++i)
|
|
{
|
|
const addr_t region_addr = packet.GetPointer (&offset);
|
|
const uint32_t region_size = packet.GetU32 (&offset);
|
|
const uint32_t region_prot = packet.GetU32 (&offset);
|
|
s.Printf("\n\tregion[%llu] = { range = [0x%16.16llx - 0x%16.16llx), size = 0x%8.8x, prot = %s }", region_addr, region_addr, region_addr + region_size, region_size, GetPermissionsAsCString (region_prot));
|
|
}
|
|
}
|
|
break;
|
|
|
|
case KDP_READMEM:
|
|
case KDP_READMEM64:
|
|
{
|
|
const uint32_t error = packet.GetU32 (&offset);
|
|
const uint32_t count = packet.GetByteSize() - offset;
|
|
s.Printf(" (error = 0x%8.8x:\n", error);
|
|
if (count > 0)
|
|
packet.Dump (&s, // Stream to dump to
|
|
offset, // Offset within "packet"
|
|
eFormatBytesWithASCII, // Format to use
|
|
1, // Size of each item in bytes
|
|
count, // Number of items
|
|
16, // Number per line
|
|
m_last_read_memory_addr, // Don't show addresses before each line
|
|
0, 0); // No bitfields
|
|
}
|
|
break;
|
|
|
|
case KDP_READREGS:
|
|
{
|
|
const uint32_t error = packet.GetU32 (&offset);
|
|
const uint32_t count = packet.GetByteSize() - offset;
|
|
s.Printf(" (error = 0x%8.8x regs:\n", error);
|
|
if (count > 0)
|
|
packet.Dump (&s, // Stream to dump to
|
|
offset, // Offset within "packet"
|
|
eFormatHex, // Format to use
|
|
m_addr_byte_size, // Size of each item in bytes
|
|
count / m_addr_byte_size, // Number of items
|
|
16 / m_addr_byte_size, // Number per line
|
|
LLDB_INVALID_ADDRESS, // Don't show addresses before each line
|
|
0, 0); // No bitfields
|
|
}
|
|
break;
|
|
|
|
case KDP_KERNELVERSION:
|
|
{
|
|
const char *kernel_version = packet.PeekCStr(8);
|
|
s.Printf(" (version = \"%s\")", kernel_version);
|
|
}
|
|
break;
|
|
|
|
case KDP_MAXBYTES:
|
|
{
|
|
const uint32_t max_bytes = packet.GetU32 (&offset);
|
|
s.Printf(" (max_bytes = 0x%8.8x (%u))", max_bytes, max_bytes);
|
|
}
|
|
break;
|
|
case KDP_IMAGEPATH:
|
|
{
|
|
const char *path = packet.GetCStr(&offset);
|
|
s.Printf(" (path = \"%s\")", path);
|
|
}
|
|
break;
|
|
default:
|
|
s.Printf(" (add support for dumping this packet reply!!!");
|
|
break;
|
|
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Dump request packets
|
|
switch (command)
|
|
{
|
|
case KDP_CONNECT:
|
|
{
|
|
const uint16_t reply_port = packet.GetU16 (&offset);
|
|
const uint16_t exc_port = packet.GetU16 (&offset);
|
|
s.Printf(" (reply_port = %u, exc_port = %u, greeting = \"%s\")", reply_port, exc_port, packet.GetCStr(&offset));
|
|
}
|
|
break;
|
|
|
|
case KDP_DISCONNECT:
|
|
case KDP_HOSTREBOOT:
|
|
case KDP_HOSTINFO:
|
|
case KDP_VERSION:
|
|
case KDP_REGIONS:
|
|
case KDP_KERNELVERSION:
|
|
case KDP_MAXBYTES:
|
|
case KDP_IMAGEPATH:
|
|
case KDP_SUSPEND:
|
|
// No args, just the header in the request...
|
|
s.PutCString(" ()");
|
|
break;
|
|
|
|
case KDP_RESUMECPUS:
|
|
{
|
|
const uint32_t cpu_mask = packet.GetU32 (&offset);
|
|
s.Printf(" (cpu_mask = 0x%8.8x)", cpu_mask);
|
|
}
|
|
break;
|
|
|
|
case KDP_READMEM:
|
|
{
|
|
const uint32_t addr = packet.GetU32 (&offset);
|
|
const uint32_t size = packet.GetU32 (&offset);
|
|
s.Printf(" (addr = 0x%8.8x, size = %u)", addr, size);
|
|
m_last_read_memory_addr = addr;
|
|
}
|
|
break;
|
|
|
|
case KDP_WRITEMEM:
|
|
{
|
|
const uint32_t addr = packet.GetU32 (&offset);
|
|
const uint32_t size = packet.GetU32 (&offset);
|
|
s.Printf(" (addr = 0x%8.8x, size = %u, bytes = \n", addr, size);
|
|
if (size > 0)
|
|
DataExtractor::DumpHexBytes(&s, packet.GetData(&offset, size), size, 32, addr);
|
|
}
|
|
break;
|
|
|
|
case KDP_READMEM64:
|
|
{
|
|
const uint64_t addr = packet.GetU64 (&offset);
|
|
const uint32_t size = packet.GetU32 (&offset);
|
|
s.Printf(" (addr = 0x%16.16llx, size = %u)", addr, size);
|
|
m_last_read_memory_addr = addr;
|
|
}
|
|
break;
|
|
|
|
case KDP_WRITEMEM64:
|
|
{
|
|
const uint64_t addr = packet.GetU64 (&offset);
|
|
const uint32_t size = packet.GetU32 (&offset);
|
|
s.Printf(" (addr = 0x%16.16llx, size = %u, bytes = \n", addr, size);
|
|
if (size > 0)
|
|
DataExtractor::DumpHexBytes(&s, packet.GetData(&offset, size), size, 32, addr);
|
|
}
|
|
break;
|
|
|
|
case KDP_READREGS:
|
|
{
|
|
const uint32_t cpu = packet.GetU32 (&offset);
|
|
const uint32_t flavor = packet.GetU32 (&offset);
|
|
s.Printf(" (cpu = %u, flavor = %u)", cpu, flavor);
|
|
}
|
|
break;
|
|
|
|
case KDP_WRITEREGS:
|
|
{
|
|
const uint32_t cpu = packet.GetU32 (&offset);
|
|
const uint32_t flavor = packet.GetU32 (&offset);
|
|
const uint32_t nbytes = packet.GetByteSize() - offset;
|
|
s.Printf(" (cpu = %u, flavor = %u, regs = \n", cpu, flavor);
|
|
if (nbytes > 0)
|
|
packet.Dump (&s, // Stream to dump to
|
|
offset, // Offset within "packet"
|
|
eFormatHex, // Format to use
|
|
m_addr_byte_size, // Size of each item in bytes
|
|
nbytes / m_addr_byte_size, // Number of items
|
|
16 / m_addr_byte_size, // Number per line
|
|
LLDB_INVALID_ADDRESS, // Don't show addresses before each line
|
|
0, 0); // No bitfields
|
|
}
|
|
break;
|
|
|
|
|
|
case KDP_BREAKPOINT_SET:
|
|
case KDP_BREAKPOINT_REMOVE:
|
|
{
|
|
const uint32_t addr = packet.GetU32 (&offset);
|
|
s.Printf(" (addr = 0x%8.8x)", addr);
|
|
}
|
|
break;
|
|
|
|
case KDP_BREAKPOINT_SET64:
|
|
case KDP_BREAKPOINT_REMOVE64:
|
|
{
|
|
const uint64_t addr = packet.GetU64 (&offset);
|
|
s.Printf(" (addr = 0x%16.16llx)", addr);
|
|
}
|
|
break;
|
|
|
|
|
|
case KDP_LOAD:
|
|
{
|
|
const char *path = packet.GetCStr(&offset);
|
|
s.Printf(" (path = \"%s\")", path);
|
|
}
|
|
break;
|
|
|
|
case KDP_EXCEPTION:
|
|
{
|
|
const uint32_t count = packet.GetU32 (&offset);
|
|
|
|
s.Printf(" (count = %u:", count);
|
|
for (uint32_t i=0; i<count; ++i)
|
|
{
|
|
const uint32_t cpu = packet.GetU32 (&offset);
|
|
const uint32_t exc = packet.GetU32 (&offset);
|
|
const uint32_t code = packet.GetU32 (&offset);
|
|
const uint32_t subcode = packet.GetU32 (&offset);
|
|
const char *exc_cstr = NULL;
|
|
switch (exc)
|
|
{
|
|
case 1: exc_cstr = "EXC_BAD_ACCESS"; break;
|
|
case 2: exc_cstr = "EXC_BAD_INSTRUCTION"; break;
|
|
case 3: exc_cstr = "EXC_ARITHMETIC"; break;
|
|
case 4: exc_cstr = "EXC_EMULATION"; break;
|
|
case 5: exc_cstr = "EXC_SOFTWARE"; break;
|
|
case 6: exc_cstr = "EXC_BREAKPOINT"; break;
|
|
case 7: exc_cstr = "EXC_SYSCALL"; break;
|
|
case 8: exc_cstr = "EXC_MACH_SYSCALL"; break;
|
|
case 9: exc_cstr = "EXC_RPC_ALERT"; break;
|
|
case 10: exc_cstr = "EXC_CRASH"; break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
s.Printf ("\n cpu = 0x%8.8x, exc = %s (%u), code = %u (0x%8.8x), subcode = %u (0x%8.8x)\n",
|
|
cpu, exc_cstr, exc, code, code, subcode, subcode);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case KDP_TERMINATION:
|
|
{
|
|
const uint32_t term_code = packet.GetU32 (&offset);
|
|
const uint32_t exit_code = packet.GetU32 (&offset);
|
|
s.Printf(" (term_code = 0x%8.8x (%u), exit_code = 0x%8.8x (%u))", term_code, term_code, exit_code, exit_code);
|
|
}
|
|
break;
|
|
|
|
case KDP_REATTACH:
|
|
{
|
|
const uint16_t reply_port = packet.GetU16 (&offset);
|
|
s.Printf(" (reply_port = %u)", reply_port);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
error_desc = "error: invalid packet command: ";
|
|
}
|
|
}
|
|
|
|
if (error_desc)
|
|
{
|
|
s.PutCString (error_desc);
|
|
|
|
packet.Dump (&s, // Stream to dump to
|
|
0, // Offset into "packet"
|
|
eFormatBytes, // Dump as hex bytes
|
|
1, // Size of each item is 1 for single bytes
|
|
packet.GetByteSize(), // Number of bytes
|
|
UINT32_MAX, // Num bytes per line
|
|
LLDB_INVALID_ADDRESS, // Base address
|
|
0, 0); // Bitfield info set to not do anything bitfield related
|
|
}
|
|
}
|
|
|
|
uint32_t
|
|
CommunicationKDP::SendRequestReadRegisters (uint32_t cpu,
|
|
uint32_t flavor,
|
|
void *dst,
|
|
uint32_t dst_len,
|
|
Error &error)
|
|
{
|
|
PacketStreamType request_packet (Stream::eBinary, m_addr_byte_size, m_byte_order);
|
|
const CommandType command = KDP_READREGS;
|
|
// Size is header + 4 byte cpu and 4 byte flavor
|
|
const uint32_t command_length = 8 + 4 + 4;
|
|
const uint32_t request_sequence_id = m_request_sequence_id;
|
|
MakeRequestPacketHeader (command, request_packet, command_length);
|
|
request_packet.PutHex32 (cpu);
|
|
request_packet.PutHex32 (flavor);
|
|
DataExtractor reply_packet;
|
|
if (SendRequestAndGetReply (command, request_sequence_id, request_packet, reply_packet))
|
|
{
|
|
uint32_t offset = 8;
|
|
uint32_t kdp_error = reply_packet.GetU32 (&offset);
|
|
uint32_t src_len = reply_packet.GetByteSize() - 12;
|
|
|
|
if (src_len > 0)
|
|
{
|
|
const uint32_t bytes_to_copy = std::min<uint32_t>(src_len, dst_len);
|
|
const void *src = reply_packet.GetData(&offset, bytes_to_copy);
|
|
if (src)
|
|
{
|
|
::memcpy (dst, src, bytes_to_copy);
|
|
error.Clear();
|
|
// Return the number of bytes we could have returned regardless if
|
|
// we copied them or not, just so we know when things don't match up
|
|
return src_len;
|
|
}
|
|
}
|
|
if (kdp_error)
|
|
error.SetErrorStringWithFormat("failed to read kdp registers for cpu %u flavor %u (error %u)", cpu, flavor, kdp_error);
|
|
else
|
|
error.SetErrorStringWithFormat("failed to read kdp registers for cpu %u flavor %u", cpu, flavor);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
bool
|
|
CommunicationKDP::SendRequestResume (uint32_t cpu_mask)
|
|
{
|
|
if (cpu_mask == 0)
|
|
cpu_mask = GetCPUMask();
|
|
PacketStreamType request_packet (Stream::eBinary, m_addr_byte_size, m_byte_order);
|
|
const CommandType command = KDP_RESUMECPUS;
|
|
const uint32_t command_length = 12;
|
|
const uint32_t request_sequence_id = m_request_sequence_id;
|
|
MakeRequestPacketHeader (command, request_packet, command_length);
|
|
request_packet.PutHex32(cpu_mask);
|
|
|
|
DataExtractor reply_packet;
|
|
if (SendRequestAndGetReply (command, request_sequence_id, request_packet, reply_packet))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
CommunicationKDP::SendRequestBreakpoint (bool set, addr_t addr)
|
|
{
|
|
PacketStreamType request_packet (Stream::eBinary, m_addr_byte_size, m_byte_order);
|
|
bool use_64 = (GetVersion() >= 11);
|
|
uint32_t command_addr_byte_size = use_64 ? 8 : 4;
|
|
const CommandType command = set ? (use_64 ? KDP_BREAKPOINT_SET64 : KDP_BREAKPOINT_SET ):
|
|
(use_64 ? KDP_BREAKPOINT_REMOVE64 : KDP_BREAKPOINT_REMOVE);
|
|
|
|
const uint32_t command_length = 8 + command_addr_byte_size;
|
|
const uint32_t request_sequence_id = m_request_sequence_id;
|
|
MakeRequestPacketHeader (command, request_packet, command_length);
|
|
request_packet.PutMaxHex64 (addr, command_addr_byte_size);
|
|
|
|
DataExtractor reply_packet;
|
|
if (SendRequestAndGetReply (command, request_sequence_id, request_packet, reply_packet))
|
|
{
|
|
uint32_t offset = 8;
|
|
uint32_t kdp_error = reply_packet.GetU32 (&offset);
|
|
if (kdp_error == 0)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
CommunicationKDP::SendRequestSuspend ()
|
|
{
|
|
PacketStreamType request_packet (Stream::eBinary, m_addr_byte_size, m_byte_order);
|
|
const CommandType command = KDP_SUSPEND;
|
|
const uint32_t command_length = 8;
|
|
const uint32_t request_sequence_id = m_request_sequence_id;
|
|
MakeRequestPacketHeader (command, request_packet, command_length);
|
|
DataExtractor reply_packet;
|
|
if (SendRequestAndGetReply (command, request_sequence_id, request_packet, reply_packet))
|
|
return true;
|
|
return false;
|
|
}
|
|
|