1 //===-- GDBRemote.cpp -----------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "lldb/Utility/GDBRemote.h" 10 11 #include "lldb/Utility/Flags.h" 12 #include "lldb/Utility/Stream.h" 13 14 #include <cstdio> 15 16 using namespace lldb; 17 using namespace lldb_private; 18 using namespace llvm; 19 20 StreamGDBRemote::StreamGDBRemote() : StreamString() {} 21 22 StreamGDBRemote::StreamGDBRemote(uint32_t flags, uint32_t addr_size, 23 ByteOrder byte_order) 24 : StreamString(flags, addr_size, byte_order) {} 25 26 StreamGDBRemote::~StreamGDBRemote() = default; 27 28 int StreamGDBRemote::PutEscapedBytes(const void *s, size_t src_len) { 29 int bytes_written = 0; 30 const uint8_t *src = static_cast<const uint8_t *>(s); 31 bool binary_is_set = m_flags.Test(eBinary); 32 m_flags.Clear(eBinary); 33 while (src_len) { 34 uint8_t byte = *src; 35 src++; 36 src_len--; 37 if (byte == 0x23 || byte == 0x24 || byte == 0x7d || byte == 0x2a) { 38 bytes_written += PutChar(0x7d); 39 byte ^= 0x20; 40 } 41 bytes_written += PutChar(byte); 42 }; 43 if (binary_is_set) 44 m_flags.Set(eBinary); 45 return bytes_written; 46 } 47 48 llvm::StringRef GDBRemotePacket::GetTypeStr() const { 49 switch (type) { 50 case GDBRemotePacket::ePacketTypeSend: 51 return "send"; 52 case GDBRemotePacket::ePacketTypeRecv: 53 return "read"; 54 case GDBRemotePacket::ePacketTypeInvalid: 55 return "invalid"; 56 } 57 llvm_unreachable("All enum cases should be handled"); 58 } 59 60 void GDBRemotePacket::Dump(Stream &strm) const { 61 strm.Printf("tid=0x%4.4" PRIx64 " <%4u> %s packet: %s\n", tid, 62 bytes_transmitted, GetTypeStr().data(), packet.data.c_str()); 63 } 64