64 lines · cpp
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-exception6//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 16using namespace lldb;17using namespace lldb_private;18using namespace llvm;19 20StreamGDBRemote::StreamGDBRemote() : StreamString() {}21 22StreamGDBRemote::StreamGDBRemote(uint32_t flags, uint32_t addr_size,23 ByteOrder byte_order)24 : StreamString(flags, addr_size, byte_order) {}25 26StreamGDBRemote::~StreamGDBRemote() = default;27 28int 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 48llvm::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 60void 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