1 //===- DWARFDebugFrame.h - Parsing of .debug_frame --------------*- 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_DWARF_DWARFDEBUGFRAME_H 11 #define LLVM_DEBUGINFO_DWARF_DWARFDEBUGFRAME_H 12 13 #include "llvm/Support/DataExtractor.h" 14 #include <memory> 15 #include <vector> 16 17 namespace llvm { 18 19 class FrameEntry; 20 class raw_ostream; 21 22 /// \brief A parsed .debug_frame or .eh_frame section 23 /// 24 class DWARFDebugFrame { 25 // True if this is parsing an eh_frame section. 26 bool IsEH; 27 28 public: 29 DWARFDebugFrame(bool IsEH); 30 ~DWARFDebugFrame(); 31 32 /// Dump the section data into the given stream. 33 void dump(raw_ostream &OS, Optional<uint64_t> Offset) const; 34 35 /// \brief Parse the section from raw data. 36 /// data is assumed to be pointing to the beginning of the section. 37 void parse(DataExtractor Data); 38 39 /// Return whether the section has any entries. 40 bool empty() const { return Entries.empty(); } 41 42 /// Return the entry at the given offset or nullptr. 43 FrameEntry *getEntryAtOffset(uint64_t Offset) const; 44 45 private: 46 std::vector<std::unique_ptr<FrameEntry>> Entries; 47 }; 48 49 } // end namespace llvm 50 51 #endif // LLVM_DEBUGINFO_DWARF_DWARFDEBUGFRAME_H 52
