ff5225bfb6
To support dumping the reproducer's GDB remote packets, we need the (de)serialization logic to live in Utility rather than the GDB remote plugin. This patch renames StreamGDBRemote to GDBRemote and moves the relevant packet code there. Its uses in the GDBRemoteCommunicationHistory and the GDBRemoteCommunicationReplayServer are updated as well. Differential revision: https://reviews.llvm.org/D67523 llvm-svn: 371907
105 lines
3.9 KiB
C++
105 lines
3.9 KiB
C++
//===-- GDBRemoteCommunicationHistory.cpp -----------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "GDBRemoteCommunicationHistory.h"
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// Other libraries and framework includes
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#include "lldb/Core/StreamFile.h"
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#include "lldb/Utility/ConstString.h"
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#include "lldb/Utility/Log.h"
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using namespace llvm;
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using namespace lldb;
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using namespace lldb_private;
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using namespace lldb_private::process_gdb_remote;
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GDBRemoteCommunicationHistory::GDBRemoteCommunicationHistory(uint32_t size)
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: m_packets(), m_curr_idx(0), m_total_packet_count(0),
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m_dumped_to_log(false) {
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if (size)
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m_packets.resize(size);
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}
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GDBRemoteCommunicationHistory::~GDBRemoteCommunicationHistory() {}
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void GDBRemoteCommunicationHistory::AddPacket(char packet_char,
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GDBRemotePacket::Type type,
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uint32_t bytes_transmitted) {
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const size_t size = m_packets.size();
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if (size == 0)
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return;
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const uint32_t idx = GetNextIndex();
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m_packets[idx].packet.data.assign(1, packet_char);
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m_packets[idx].type = type;
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m_packets[idx].bytes_transmitted = bytes_transmitted;
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m_packets[idx].packet_idx = m_total_packet_count;
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m_packets[idx].tid = llvm::get_threadid();
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if (m_stream)
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m_packets[idx].Serialize(*m_stream);
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}
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void GDBRemoteCommunicationHistory::AddPacket(const std::string &src,
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uint32_t src_len,
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GDBRemotePacket::Type type,
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uint32_t bytes_transmitted) {
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const size_t size = m_packets.size();
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if (size == 0)
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return;
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const uint32_t idx = GetNextIndex();
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m_packets[idx].packet.data.assign(src, 0, src_len);
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m_packets[idx].type = type;
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m_packets[idx].bytes_transmitted = bytes_transmitted;
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m_packets[idx].packet_idx = m_total_packet_count;
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m_packets[idx].tid = llvm::get_threadid();
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if (m_stream)
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m_packets[idx].Serialize(*m_stream);
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}
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void GDBRemoteCommunicationHistory::Dump(Stream &strm) const {
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const uint32_t size = GetNumPacketsInHistory();
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const uint32_t first_idx = GetFirstSavedPacketIndex();
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const uint32_t stop_idx = m_curr_idx + size;
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for (uint32_t i = first_idx; i < stop_idx; ++i) {
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const uint32_t idx = NormalizeIndex(i);
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const GDBRemotePacket &entry = m_packets[idx];
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if (entry.type == GDBRemotePacket::ePacketTypeInvalid ||
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entry.packet.data.empty())
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break;
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strm.Printf("history[%u] tid=0x%4.4" PRIx64 " <%4u> %s packet: %s\n",
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entry.packet_idx, entry.tid, entry.bytes_transmitted,
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(entry.type == GDBRemotePacket::ePacketTypeSend) ? "send"
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: "read",
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entry.packet.data.c_str());
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}
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}
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void GDBRemoteCommunicationHistory::Dump(Log *log) const {
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if (!log || m_dumped_to_log)
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return;
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m_dumped_to_log = true;
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const uint32_t size = GetNumPacketsInHistory();
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const uint32_t first_idx = GetFirstSavedPacketIndex();
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const uint32_t stop_idx = m_curr_idx + size;
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for (uint32_t i = first_idx; i < stop_idx; ++i) {
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const uint32_t idx = NormalizeIndex(i);
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const GDBRemotePacket &entry = m_packets[idx];
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if (entry.type == GDBRemotePacket::ePacketTypeInvalid ||
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entry.packet.data.empty())
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break;
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LLDB_LOGF(log, "history[%u] tid=0x%4.4" PRIx64 " <%4u> %s packet: %s",
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entry.packet_idx, entry.tid, entry.bytes_transmitted,
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(entry.type == GDBRemotePacket::ePacketTypeSend) ? "send"
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: "read",
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entry.packet.data.c_str());
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}
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}
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