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Diffstat (limited to 'source/Utility/StringExtractorGDBRemote.cpp')
| -rw-r--r-- | source/Utility/StringExtractorGDBRemote.cpp | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/source/Utility/StringExtractorGDBRemote.cpp b/source/Utility/StringExtractorGDBRemote.cpp new file mode 100644 index 000000000000..7e06a0f59bc9 --- /dev/null +++ b/source/Utility/StringExtractorGDBRemote.cpp @@ -0,0 +1,182 @@ +//===-- StringExtractorGDBRemote.cpp ----------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// C Includes +#include <string.h> + +// C++ Includes +// Other libraries and framework includes +// Project includes +#include "Utility/StringExtractorGDBRemote.h" + + + +StringExtractorGDBRemote::ResponseType +StringExtractorGDBRemote::GetResponseType () const +{ + if (m_packet.empty()) + return eUnsupported; + + switch (m_packet[0]) + { + case 'E': + if (m_packet.size() == 3 && + isxdigit(m_packet[1]) && + isxdigit(m_packet[2])) + return eError; + break; + + case 'O': + if (m_packet.size() == 2 && m_packet[1] == 'K') + return eOK; + break; + + case '+': + if (m_packet.size() == 1) + return eAck; + break; + + case '-': + if (m_packet.size() == 1) + return eNack; + break; + } + return eResponse; +} + +StringExtractorGDBRemote::ServerPacketType +StringExtractorGDBRemote::GetServerPacketType () const +{ +#define PACKET_MATCHES(s) ((packet_size == (sizeof(s)-1)) && (strcmp((packet_cstr),(s)) == 0)) +#define PACKET_STARTS_WITH(s) ((packet_size >= (sizeof(s)-1)) && ::strncmp(packet_cstr, s, (sizeof(s)-1))==0) + + // Empty is not a supported packet... + if (m_packet.empty()) + return eServerPacketType_invalid; + + const size_t packet_size = m_packet.size(); + const char *packet_cstr = m_packet.c_str(); + switch (m_packet[0]) + { + case '\x03': + if (packet_size == 1) return eServerPacketType_interrupt; + break; + + case '-': + if (packet_size == 1) return eServerPacketType_nack; + break; + + case '+': + if (packet_size == 1) return eServerPacketType_ack; + break; + + case 'A': + return eServerPacketType_A; + + case 'Q': + switch (packet_cstr[1]) + { + case 'E': + if (PACKET_STARTS_WITH ("QEnvironment:")) return eServerPacketType_QEnvironment; + break; + + case 'S': + if (PACKET_MATCHES ("QStartNoAckMode")) return eServerPacketType_QStartNoAckMode; + else if (PACKET_STARTS_WITH ("QSetDisableASLR:")) return eServerPacketType_QSetDisableASLR; + else if (PACKET_STARTS_WITH ("QSetSTDIN:")) return eServerPacketType_QSetSTDIN; + else if (PACKET_STARTS_WITH ("QSetSTDOUT:")) return eServerPacketType_QSetSTDOUT; + else if (PACKET_STARTS_WITH ("QSetSTDERR:")) return eServerPacketType_QSetSTDERR; + else if (PACKET_STARTS_WITH ("QSetWorkingDir:")) return eServerPacketType_QSetWorkingDir; + break; + } + break; + + case 'q': + switch (packet_cstr[1]) + { + case 's': + if (PACKET_MATCHES ("qsProcessInfo")) return eServerPacketType_qsProcessInfo; + break; + + case 'f': + if (PACKET_STARTS_WITH ("qfProcessInfo")) return eServerPacketType_qfProcessInfo; + break; + + case 'C': + if (packet_size == 2) return eServerPacketType_qC; + break; + + case 'G': + if (PACKET_STARTS_WITH ("qGroupName:")) return eServerPacketType_qGroupName; + break; + + case 'H': + if (PACKET_MATCHES ("qHostInfo")) return eServerPacketType_qHostInfo; + break; + + case 'L': + if (PACKET_MATCHES ("qLaunchGDBServer")) return eServerPacketType_qLaunchGDBServer; + if (PACKET_MATCHES ("qLaunchSuccess")) return eServerPacketType_qLaunchSuccess; + break; + + case 'P': + if (PACKET_STARTS_WITH ("qProcessInfoPID:")) return eServerPacketType_qProcessInfoPID; + break; + + case 'S': + if (PACKET_STARTS_WITH ("qSpeedTest:")) return eServerPacketType_qSpeedTest; + break; + + case 'U': + if (PACKET_STARTS_WITH ("qUserName:")) return eServerPacketType_qUserName; + break; + } + break; + } + return eServerPacketType_unimplemented; +} + +bool +StringExtractorGDBRemote::IsOKResponse() const +{ + return GetResponseType () == eOK; +} + + +bool +StringExtractorGDBRemote::IsUnsupportedResponse() const +{ + return GetResponseType () == eUnsupported; +} + +bool +StringExtractorGDBRemote::IsNormalResponse() const +{ + return GetResponseType () == eResponse; +} + +bool +StringExtractorGDBRemote::IsErrorResponse() const +{ + return GetResponseType () == eError && + m_packet.size() == 3 && + isxdigit(m_packet[1]) && + isxdigit(m_packet[2]); +} + +uint8_t +StringExtractorGDBRemote::GetError () +{ + if (GetResponseType() == eError) + { + SetFilePos(1); + return GetHexU8(255); + } + return 0; +} |