1 files changed, 105 insertions, 0 deletions
diff --git a/source/Utility/GDBRemote.cpp b/source/Utility/GDBRemote.cpp
new file mode 100644
index 0000000000000..85c4bc69a8d10
--- /dev/null
+++ b/source/Utility/GDBRemote.cpp
@@ -0,0 +1,105 @@
+//===-- GDBRemote.cpp -----------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Utility/GDBRemote.h"
+
+#include "lldb/Utility/Flags.h"
+#include "lldb/Utility/Stream.h"
+
+#include <stdio.h>
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace llvm;
+
+StreamGDBRemote::StreamGDBRemote() : StreamString() {}
+
+StreamGDBRemote::StreamGDBRemote(uint32_t flags, uint32_t addr_size,
+                                 ByteOrder byte_order)
+    : StreamString(flags, addr_size, byte_order) {}
+
+StreamGDBRemote::~StreamGDBRemote() {}
+
+int StreamGDBRemote::PutEscapedBytes(const void *s, size_t src_len) {
+  int bytes_written = 0;
+  const uint8_t *src = static_cast<const uint8_t *>(s);
+  bool binary_is_set = m_flags.Test(eBinary);
+  m_flags.Clear(eBinary);
+  while (src_len) {
+    uint8_t byte = *src;
+    src++;
+    src_len--;
+    if (byte == 0x23 || byte == 0x24 || byte == 0x7d || byte == 0x2a) {
+      bytes_written += PutChar(0x7d);
+      byte ^= 0x20;
+    }
+    bytes_written += PutChar(byte);
+  };
+  if (binary_is_set)
+    m_flags.Set(eBinary);
+  return bytes_written;
+}
+
+void GDBRemotePacket::Serialize(raw_ostream &strm) const {
+  yaml::Output yout(strm);
+  yout << const_cast<GDBRemotePacket &>(*this);
+  strm.flush();
+}
+
+llvm::StringRef GDBRemotePacket::GetTypeStr() const {
+  switch (type) {
+  case GDBRemotePacket::ePacketTypeSend:
+    return "send";
+  case GDBRemotePacket::ePacketTypeRecv:
+    return "read";
+  case GDBRemotePacket::ePacketTypeInvalid:
+    return "invalid";
+  }
+  llvm_unreachable("All enum cases should be handled");
+}
+
+void GDBRemotePacket::Dump(Stream &strm) const {
+  strm.Printf("tid=0x%4.4" PRIx64 " <%4u> %s packet: %s\n", tid,
+              bytes_transmitted, GetTypeStr().data(), packet.data.c_str());
+}
+
+void yaml::ScalarEnumerationTraits<GDBRemotePacket::Type>::enumeration(
+    IO &io, GDBRemotePacket::Type &value) {
+  io.enumCase(value, "Invalid", GDBRemotePacket::ePacketTypeInvalid);
+  io.enumCase(value, "Send", GDBRemotePacket::ePacketTypeSend);
+  io.enumCase(value, "Recv", GDBRemotePacket::ePacketTypeRecv);
+}
+
+void yaml::ScalarTraits<GDBRemotePacket::BinaryData>::output(
+    const GDBRemotePacket::BinaryData &Val, void *, raw_ostream &Out) {
+  Out << toHex(Val.data);
+}
+
+StringRef yaml::ScalarTraits<GDBRemotePacket::BinaryData>::input(
+    StringRef Scalar, void *, GDBRemotePacket::BinaryData &Val) {
+  Val.data = fromHex(Scalar);
+  return {};
+}
+
+void yaml::MappingTraits<GDBRemotePacket>::mapping(IO &io,
+                                                   GDBRemotePacket &Packet) {
+  io.mapRequired("packet", Packet.packet);
+  io.mapRequired("type", Packet.type);
+  io.mapRequired("bytes", Packet.bytes_transmitted);
+  io.mapRequired("index", Packet.packet_idx);
+  io.mapRequired("tid", Packet.tid);
+}
+
+StringRef
+yaml::MappingTraits<GDBRemotePacket>::validate(IO &io,
+                                               GDBRemotePacket &Packet) {
+  if (Packet.bytes_transmitted != Packet.packet.data.size())
+    return "BinaryData size doesn't match bytes transmitted";
+
+  return {};
+}