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c4e411ffc0
I added support for asking if the GDB remote server supports thread suffixes
for packets that should be thread specific (register read/write packets) because
the way the GDB remote protocol does it right now is to have a notion of a
current thread for register and memory reads/writes (set via the "$Hg%x" packet)
and a current thread for running ("$Hc%x"). Now we ask the remote GDB server
if it supports adding the thread ID to the register packets and we enable
that feature in LLDB if supported. This stops us from having to send a bunch
of packets that update the current thread ID to some value which is prone to
error, or extra packets.
llvm-svn: 123762
139 lines
3.3 KiB
C++
139 lines
3.3 KiB
C++
//===-- StringExtractor.h ---------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef utility_StringExtractor_h_
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#define utility_StringExtractor_h_
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// C Includes
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// C++ Includes
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#include <string>
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#include <stdint.h>
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// Other libraries and framework includes
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// Project includes
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class StringExtractor
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{
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public:
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enum {
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BigEndian = 0,
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LittleEndian = 1
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};
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//------------------------------------------------------------------
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// Constructors and Destructors
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//------------------------------------------------------------------
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StringExtractor();
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StringExtractor(const char *packet_cstr);
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StringExtractor(const StringExtractor& rhs);
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virtual ~StringExtractor();
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//------------------------------------------------------------------
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// Operators
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//------------------------------------------------------------------
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const StringExtractor&
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operator=(const StringExtractor& rhs);
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// Returns true if the file position is still valid for the data
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// contained in this string extractor object.
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bool
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IsGood() const
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{
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return m_index != UINT32_MAX;
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}
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uint32_t
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GetFilePos () const
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{
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return m_index;
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}
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void
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SetFilePos (uint32_t idx)
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{
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m_index = idx;
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}
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void
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Clear ()
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{
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m_packet.clear();
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m_index = 0;
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}
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std::string &
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GetStringRef ()
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{
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return m_packet;
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}
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bool
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Empty()
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{
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return m_packet.empty();
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}
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uint32_t
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GetBytesLeft ()
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{
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if (m_index < m_packet.size())
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return m_packet.size() - m_index;
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return 0;
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}
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char
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GetChar (char fail_value = '\0');
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int8_t
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GetHexS8 (int8_t fail_value = 0);
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uint8_t
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GetHexU8 (uint8_t fail_value = 0);
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bool
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GetNameColonValue (std::string &name, std::string &value);
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uint32_t
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GetHexMaxU32 (bool little_endian, uint32_t fail_value);
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uint64_t
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GetHexMaxU64 (bool little_endian, uint64_t fail_value);
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size_t
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GetHexBytes (void *dst, size_t dst_len, uint8_t fail_fill_value);
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uint64_t
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GetHexWithFixedSize (uint32_t byte_size, bool little_endian, uint64_t fail_value);
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size_t
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GetHexByteString (std::string &str);
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const char *
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Peek ()
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{
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if (m_index < m_packet.size())
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return m_packet.c_str() + m_index;
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return NULL;
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}
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protected:
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//------------------------------------------------------------------
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// For StringExtractor only
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//------------------------------------------------------------------
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std::string m_packet; // The string in which to extract data.
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uint32_t m_index; // When extracting data from a packet, this index
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// will march along as things get extracted. If set
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// to UINT32_MAX the end of the packet data was
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// reached when decoding information
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uint32_t
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GetNumHexASCIICharsAtFilePos (uint32_t max = UINT32_MAX) const;
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};
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#endif // utility_StringExtractor_h_
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