| //===-- DWARFDebugArangeSet.h -----------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef SymbolFileDWARF_DWARFDebugArangeSet_h_ |
| #define SymbolFileDWARF_DWARFDebugArangeSet_h_ |
| |
| #include "SymbolFileDWARF.h" |
| #include <vector> |
| |
| class SymbolFileDWARF; |
| |
| class DWARFDebugArangeSet { |
| public: |
| struct Header { |
| uint32_t length; // The total length of the entries for that set, not |
| // including the length field itself. |
| uint16_t version; // The DWARF version number |
| uint32_t cu_offset; // The offset from the beginning of the .debug_info |
| // section of the compilation unit entry referenced by |
| // the table. |
| 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 |
| 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. |
| }; |
| |
| struct Descriptor { |
| dw_addr_t address; |
| dw_addr_t length; |
| dw_addr_t end_address() const { return address + length; } |
| }; |
| |
| DWARFDebugArangeSet(); |
| void Clear(); |
| void SetOffset(uint32_t offset) { m_offset = offset; } |
| void SetHeader(uint16_t version, uint32_t cu_offset, uint8_t addr_size, |
| uint8_t seg_size); |
| void AddDescriptor(const DWARFDebugArangeSet::Descriptor &range); |
| void Compact(); |
| bool Extract(const lldb_private::DWARFDataExtractor &data, |
| lldb::offset_t *offset_ptr); |
| void Dump(lldb_private::Stream *s) const; |
| dw_offset_t GetCompileUnitDIEOffset() const { return m_header.cu_offset; } |
| dw_offset_t GetOffsetOfNextEntry() const; |
| dw_offset_t FindAddress(dw_addr_t address) const; |
| size_t NumDescriptors() const { return m_arange_descriptors.size(); } |
| const Header &GetHeader() const { return m_header; } |
| const Descriptor *GetDescriptor(uint32_t i) const { |
| if (i < m_arange_descriptors.size()) |
| return &m_arange_descriptors[i]; |
| return NULL; |
| } |
| |
| const Descriptor &GetDescriptorRef(uint32_t i) const { |
| return m_arange_descriptors[i]; |
| } |
| |
| protected: |
| typedef std::vector<Descriptor> DescriptorColl; |
| typedef DescriptorColl::iterator DescriptorIter; |
| typedef DescriptorColl::const_iterator DescriptorConstIter; |
| |
| uint32_t m_offset; |
| Header m_header; |
| DescriptorColl m_arange_descriptors; |
| }; |
| |
| #endif // SymbolFileDWARF_DWARFDebugArangeSet_h_ |