| //===-- DWARFDebugArangeSet.h -----------------------------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFDEBUGARANGESET_H |
| #define LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFDEBUGARANGESET_H |
| |
| #include "lldb/Core/dwarf.h" |
| #include <cstdint> |
| #include <vector> |
| |
| class DWARFDebugArangeSet { |
| public: |
| struct Header { |
| /// The total length of the entries for that set, not including the length |
| /// field itself. |
| uint32_t length = 0; |
| /// The DWARF version number. |
| uint16_t version = 0; |
| /// The offset from the beginning of the .debug_info section of the |
| /// compilation unit entry referenced by the table. |
| uint32_t cu_offset = 0; |
| /// 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 addr_size = 0; |
| /// 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. |
| uint8_t seg_size = 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; } |
| llvm::Error extract(const lldb_private::DWARFDataExtractor &data, |
| lldb::offset_t *offset_ptr); |
| 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; } |
| dw_offset_t GetNextOffset() const { return m_next_offset; } |
| 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; |
| |
| dw_offset_t m_offset; |
| dw_offset_t m_next_offset; |
| Header m_header; |
| DescriptorColl m_arange_descriptors; |
| }; |
| |
| #endif // LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFDEBUGARANGESET_H |