77 lines
2.9 KiB
C++
77 lines
2.9 KiB
C++
//===-- DWARFDebugArangeSet.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 SymbolFileDWARF_DWARFDebugArangeSet_h_
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#define SymbolFileDWARF_DWARFDebugArangeSet_h_
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#include "SymbolFileDWARF.h"
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#include <vector>
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class SymbolFileDWARF;
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class DWARFDebugArangeSet
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{
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public:
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struct Header
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{
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uint32_t length; // The total length of the entries for that set, not including the length field itself.
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uint16_t version; // The DWARF version number
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uint32_t cu_offset; // The offset from the beginning of the .debug_info section of the compilation unit entry referenced by the table.
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uint8_t addr_size; // The size in bytes of an address on the target architecture. For segmented addressing, this is the size of the offset portion of the address
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uint8_t seg_size; // The size in bytes of a segment descriptor on the target architecture. If the target system uses a flat address space, this value is 0.
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};
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struct Descriptor
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{
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dw_addr_t address;
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dw_addr_t length;
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dw_addr_t end_address() const { return address + length; }
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};
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DWARFDebugArangeSet();
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void Clear();
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void SetOffset(uint32_t offset) { m_offset = offset; }
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void SetHeader(uint16_t version, uint32_t cu_offset, uint8_t addr_size, uint8_t seg_size);
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void AddDescriptor(const DWARFDebugArangeSet::Descriptor& range);
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void Compact();
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bool Extract(const lldb_private::DWARFDataExtractor &data, lldb::offset_t *offset_ptr);
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void Dump(lldb_private::Stream *s) const;
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dw_offset_t GetCompileUnitDIEOffset() const { return m_header.cu_offset; }
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dw_offset_t GetOffsetOfNextEntry() const;
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dw_offset_t FindAddress(dw_addr_t address) const;
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size_t NumDescriptors() const { return m_arange_descriptors.size(); }
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const Header& GetHeader() const { return m_header; }
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const Descriptor* GetDescriptor(uint32_t i) const
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{
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if (i < m_arange_descriptors.size())
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return &m_arange_descriptors[i];
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return NULL;
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}
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const Descriptor &
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GetDescriptorRef (uint32_t i) const
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{
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return m_arange_descriptors[i];
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}
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protected:
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typedef std::vector<Descriptor> DescriptorColl;
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typedef DescriptorColl::iterator DescriptorIter;
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typedef DescriptorColl::const_iterator DescriptorConstIter;
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uint32_t m_offset;
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Header m_header;
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DescriptorColl m_arange_descriptors;
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};
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#endif // SymbolFileDWARF_DWARFDebugArangeSet_h_
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