| //===- 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 LLVM_DEBUGINFO_DWARFDEBUGARANGESET_H |
| #define LLVM_DEBUGINFO_DWARFDEBUGARANGESET_H |
| |
| #include "llvm/ADT/iterator_range.h" |
| #include "llvm/Support/DataExtractor.h" |
| #include <cstdint> |
| #include <vector> |
| |
| namespace llvm { |
| |
| class raw_ostream; |
| |
| class DWARFDebugArangeSet { |
| public: |
| struct Header { |
| /// The total length of the entries for that set, not including the length |
| /// field itself. |
| uint32_t Length; |
| /// The offset from the beginning of the .debug_info section of the |
| /// compilation unit entry referenced by the table. |
| uint32_t CuOffset; |
| /// The DWARF version number. |
| uint16_t Version; |
| /// 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 AddrSize; |
| /// 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 SegSize; |
| }; |
| |
| struct Descriptor { |
| uint64_t Address; |
| uint64_t Length; |
| |
| uint64_t getEndAddress() const { return Address + Length; } |
| void dump(raw_ostream &OS, uint32_t AddressSize) const; |
| }; |
| |
| private: |
| using DescriptorColl = std::vector<Descriptor>; |
| using desc_iterator_range = iterator_range<DescriptorColl::const_iterator>; |
| |
| uint32_t Offset; |
| Header HeaderData; |
| DescriptorColl ArangeDescriptors; |
| |
| public: |
| DWARFDebugArangeSet() { clear(); } |
| |
| void clear(); |
| bool extract(DataExtractor data, uint32_t *offset_ptr); |
| void dump(raw_ostream &OS) const; |
| |
| uint32_t getCompileUnitDIEOffset() const { return HeaderData.CuOffset; } |
| |
| const Header &getHeader() const { return HeaderData; } |
| |
| desc_iterator_range descriptors() const { |
| return desc_iterator_range(ArangeDescriptors.begin(), |
| ArangeDescriptors.end()); |
| } |
| }; |
| |
| } // end namespace llvm |
| |
| #endif // LLVM_DEBUGINFO_DWARFDEBUGARANGESET_H |