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 #define PACKET_MATCHES(s) ((packet_size == (sizeof(s)-1)) && (strcmp((packet_cstr),(s)) == 0)) 57 #define PACKET_STARTS_WITH(s) ((packet_size >= (sizeof(s)-1)) && ::strncmp(packet_cstr, s, (sizeof(s)-1))==0) 58 59 // Empty is not a supported packet... 60 if (m_packet.empty()) 61 return eServerPacketType_invalid; 62 63 const size_t packet_size = m_packet.size(); 64 const char *packet_cstr = m_packet.c_str(); 65 switch (m_packet[0]) 66 { 67 case '\x03': 68 if (packet_size == 1) return eServerPacketType_interrupt; 69 break; 70 71 case '-': 72 if (packet_size == 1) return eServerPacketType_nack; 73 break; 74 75 case '+': 76 if (packet_size == 1) return eServerPacketType_ack; 77 break; 78 79 case 'A': 80 return eServerPacketType_A; 81 82 case 'Q': 83 switch (packet_cstr[1]) 84 { 85 case 'E': 86 if (PACKET_STARTS_WITH ("QEnvironment:")) return eServerPacketType_QEnvironment; 87 break; 88 89 case 'S': 90 if (PACKET_MATCHES ("QStartNoAckMode")) return eServerPacketType_QStartNoAckMode; 91 else if (PACKET_STARTS_WITH ("QSetDisableASLR:")) return eServerPacketType_QSetDisableASLR; 92 else if (PACKET_STARTS_WITH ("QSetSTDIN:")) return eServerPacketType_QSetSTDIN; 93 else if (PACKET_STARTS_WITH ("QSetSTDOUT:")) return eServerPacketType_QSetSTDOUT; 94 else if (PACKET_STARTS_WITH ("QSetSTDERR:")) return eServerPacketType_QSetSTDERR; 95 else if (PACKET_STARTS_WITH ("QSetWorkingDir:")) return eServerPacketType_QSetWorkingDir; 96 break; 97 } 98 break; 99 100 case 'q': 101 switch (packet_cstr[1]) 102 { 103 case 's': 104 if (PACKET_MATCHES ("qsProcessInfo")) return eServerPacketType_qsProcessInfo; 105 break; 106 107 case 'f': 108 if (PACKET_STARTS_WITH ("qfProcessInfo")) return eServerPacketType_qfProcessInfo; 109 break; 110 111 case 'C': 112 if (packet_size == 2) return eServerPacketType_qC; 113 break; 114 115 case 'G': 116 if (PACKET_STARTS_WITH ("qGroupName:")) return eServerPacketType_qGroupName; 117 break; 118 119 case 'H': 120 if (PACKET_MATCHES ("qHostInfo")) return eServerPacketType_qHostInfo; 121 break; 122 123 case 'L': 124 if (PACKET_MATCHES ("qLaunchGDBServer")) return eServerPacketType_qLaunchGDBServer; 125 if (PACKET_MATCHES ("qLaunchSuccess")) return eServerPacketType_qLaunchSuccess; 126 break; 127 128 case 'P': 129 if (PACKET_STARTS_WITH ("qProcessInfoPID:")) return eServerPacketType_qProcessInfoPID; 130 break; 131 132 case 'S': 133 if (PACKET_STARTS_WITH ("qSpeedTest:")) return eServerPacketType_qSpeedTest; 134 break; 135 136 case 'U': 137 if (PACKET_STARTS_WITH ("qUserName:")) return eServerPacketType_qUserName; 138 break; 139 } 140 break; 141 } 142 return eServerPacketType_unimplemented; 143 } 144 145 bool 146 StringExtractorGDBRemote::IsOKResponse() const 147 { 148 return GetResponseType () == eOK; 149 } 150 151 152 bool 153 StringExtractorGDBRemote::IsUnsupportedResponse() const 154 { 155 return GetResponseType () == eUnsupported; 156 } 157 158 bool 159 StringExtractorGDBRemote::IsNormalResponse() const 160 { 161 return GetResponseType () == eResponse; 162 } 163 164 bool 165 StringExtractorGDBRemote::IsErrorResponse() const 166 { 167 return GetResponseType () == eError && 168 m_packet.size() == 3 && 169 isxdigit(m_packet[1]) && 170 isxdigit(m_packet[2]); 171 } 172 173 uint8_t 174 StringExtractorGDBRemote::GetError () 175 { 176 if (GetResponseType() == eError) 177 { 178 SetFilePos(1); 179 return GetHexU8(255); 180 } 181 return 0; 182 } 183
