1 //===-- StringExtractorGDBRemote.cpp ----------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // C Includes 11 #include <string.h> 12 13 // C++ Includes 14 // Other libraries and framework includes 15 // Project includes 16 #include "Utility/StringExtractorGDBRemote.h" 17 18 19 20 StringExtractorGDBRemote::ResponseType 21 StringExtractorGDBRemote::GetResponseType () const 22 { 23 if (m_packet.empty()) 24 return eUnsupported; 25 26 switch (m_packet[0]) 27 { 28 case 'E': 29 if (m_packet.size() == 3 && 30 isxdigit(m_packet[1]) && 31 isxdigit(m_packet[2])) 32 return eError; 33 break; 34 35 case 'O': 36 if (m_packet.size() == 2 && m_packet[1] == 'K') 37 return eOK; 38 break; 39 40 case '+': 41 if (m_packet.size() == 1) 42 return eAck; 43 break; 44 45 case '-': 46 if (m_packet.size() == 1) 47 return eNack; 48 break; 49 } 50 return eResponse; 51 } 52 53 StringExtractorGDBRemote::ServerPacketType 54 StringExtractorGDBRemote::GetServerPacketType () const 55 { 56 // Empty is not a supported packet... 57 if (m_packet.empty()) 58 return eServerPacketType_invalid; 59 60 const char *packet_cstr = m_packet.c_str(); 61 switch (m_packet[0]) 62 { 63 case '\x03': 64 if (m_packet.size() == 1) 65 return eServerPacketType_interrupt; 66 break; 67 68 case '-': 69 if (m_packet.size() == 1) 70 return eServerPacketType_nack; 71 break; 72 73 case '+': 74 if (m_packet.size() == 1) 75 return eServerPacketType_ack; 76 break; 77 78 case 'Q': 79 if (strcmp (packet_cstr, "QStartNoAckMode") == 0) 80 return eServerPacketType_QStartNoAckMode; 81 break; 82 83 case 'q': 84 if (strcmp (packet_cstr, "qHostInfo") == 0) 85 return eServerPacketType_qHostInfo; 86 break; 87 } 88 return eServerPacketType_unimplemented; 89 } 90 91 bool 92 StringExtractorGDBRemote::IsOKResponse() const 93 { 94 return GetResponseType () == eOK; 95 } 96 97 98 bool 99 StringExtractorGDBRemote::IsUnsupportedResponse() const 100 { 101 return GetResponseType () == eUnsupported; 102 } 103 104 bool 105 StringExtractorGDBRemote::IsNormalResponse() const 106 { 107 return GetResponseType () == eResponse; 108 } 109 110 bool 111 StringExtractorGDBRemote::IsErrorResponse() const 112 { 113 return GetResponseType () == eError && 114 m_packet.size() == 3 && 115 isxdigit(m_packet[1]) && 116 isxdigit(m_packet[2]); 117 } 118 119 uint8_t 120 StringExtractorGDBRemote::GetError () 121 { 122 if (GetResponseType() == eError) 123 { 124 SetFilePos(1); 125 return GetHexU8(255); 126 } 127 return 0; 128 } 129