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
StreamGDBRemote()20 StreamGDBRemote::StreamGDBRemote() : StreamString() {}
21
StreamGDBRemote(uint32_t flags,uint32_t addr_size,ByteOrder byte_order)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
PutEscapedBytes(const void * s,size_t src_len)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
GetTypeStr() const48 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
Dump(Stream & strm) const60 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