1 //===- DWARFAcceleratorTable.h ----------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef LLVM_DEBUGINFO_DWARFACCELERATORTABLE_H 11 #define LLVM_DEBUGINFO_DWARFACCELERATORTABLE_H 12 13 #include "llvm/ADT/SmallVector.h" 14 #include "llvm/DebugInfo/DWARF/DWARFRelocMap.h" 15 #include "llvm/Support/DataExtractor.h" 16 #include "llvm/Support/Dwarf.h" 17 #include <cstdint> 18 #include <utility> 19 20 namespace llvm { 21 22 class raw_ostream; 23 24 class DWARFAcceleratorTable { 25 struct Header { 26 uint32_t Magic; 27 uint16_t Version; 28 uint16_t HashFunction; 29 uint32_t NumBuckets; 30 uint32_t NumHashes; 31 uint32_t HeaderDataLength; 32 }; 33 34 struct HeaderData { 35 typedef uint16_t AtomType; 36 typedef dwarf::Form Form; 37 uint32_t DIEOffsetBase; 38 SmallVector<std::pair<AtomType, Form>, 3> Atoms; 39 }; 40 41 struct Header Hdr; 42 struct HeaderData HdrData; 43 DataExtractor AccelSection; 44 DataExtractor StringSection; 45 const RelocAddrMap& Relocs; 46 47 public: 48 DWARFAcceleratorTable(DataExtractor AccelSection, DataExtractor StringSection, 49 const RelocAddrMap &Relocs) 50 : AccelSection(AccelSection), StringSection(StringSection), Relocs(Relocs) {} 51 52 bool extract(); 53 void dump(raw_ostream &OS) const; 54 }; 55 56 } // end namespace llvm 57 58 #endif // LLVM_DEBUGINFO_DWARFACCELERATORTABLE_H 59
