DWARFDebugFrame.cpp revision 8ff0631967c64d51b193b862aa0a6f1e8eb06f78
103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)//===-- DWARFDebugFrame.h - Parsing of .debug_frame -------------*- C++ -*-===// 203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)// 303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)// The LLVM Compiler Infrastructure 403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)// 503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)// This file is distributed under the University of Illinois Open Source 603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)// License. See LICENSE.TXT for details. 703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)// 803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)//===----------------------------------------------------------------------===// 903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 1003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)#include "DWARFDebugFrame.h" 1103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)#include "llvm/ADT/SmallString.h" 1203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)#include "llvm/Support/DataTypes.h" 1303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)#include "llvm/Support/Dwarf.h" 1403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)#include "llvm/Support/Format.h" 1503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 1603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)using namespace llvm; 1703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)using namespace dwarf; 1803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 1903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 2003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)/// \brief Abstract frame entry defining the common interface concrete 2103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)/// entries implement. 2203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)class llvm::FrameEntry { 2303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)public: 2403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) enum FrameKind {FK_CIE, FK_FDE}; 2503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) FrameEntry(FrameKind K, DataExtractor D, uint64_t Offset, uint64_t Length) 2603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) : Kind(K), Data(D), Offset(Offset), Length(Length) {} 2703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 2803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) virtual ~FrameEntry() { 2903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 3003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 3103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) FrameKind getKind() const { return Kind; } 3203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 3303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) virtual void dumpHeader(raw_ostream &OS) const = 0; 3403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 3503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)protected: 3603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) const FrameKind Kind; 3703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 3803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) /// \brief The data stream holding the section from which the entry was 3903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) /// parsed. 4003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) DataExtractor Data; 4103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 4203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) /// \brief Offset of this entry in the section. 4303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t Offset; 4403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 4503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) /// \brief Entry length as specified in DWARF. 4603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t Length; 4703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)}; 4803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 4903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 5003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)/// \brief DWARF Common Information Entry (CIE) 5103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)class CIE : public FrameEntry { 5203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)public: 531320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci // CIEs (and FDEs) are simply container classes, so the only sensible way to 5403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // create them is by providing the full parsed contents in the constructor. 5503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) CIE(DataExtractor D, uint64_t Offset, uint64_t Length, uint8_t Version, 5603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) SmallString<8> Augmentation, uint64_t CodeAlignmentFactor, 5703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) int64_t DataAlignmentFactor, uint64_t ReturnAddressRegister) 5803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) : FrameEntry(FK_CIE, D, Offset, Length), Version(Version), 5903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) Augmentation(Augmentation), CodeAlignmentFactor(CodeAlignmentFactor), 6003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) DataAlignmentFactor(DataAlignmentFactor), 6103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) ReturnAddressRegister(ReturnAddressRegister) {} 6203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 6303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) ~CIE() { 6403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 6503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 6603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) void dumpHeader(raw_ostream &OS) const { 6703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) OS << format("%08x %08x %08x CIE", 6803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) (uint32_t)Offset, (uint32_t)Length, DW_CIE_ID) 6903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) << "\n"; 7003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) OS << format(" Version: %d\n", Version); 7103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) OS << " Augmentation: \"" << Augmentation << "\"\n"; 7203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) OS << format(" Code alignment factor: %u\n", CodeAlignmentFactor); 7303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) OS << format(" Data alignment factor: %d\n", DataAlignmentFactor); 7403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) OS << format(" Return address column: %d\n", ReturnAddressRegister); 7503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) OS << "\n"; 7603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 7703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 7803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) static bool classof(const FrameEntry *FE) { 7903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) return FE->getKind() == FK_CIE; 8003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 8103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 8203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)private: 8303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) /// The following fields are defined in section 6.4.1 of the DWARF standard v3 8403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint8_t Version; 8503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) SmallString<8> Augmentation; 8603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t CodeAlignmentFactor; 8703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) int64_t DataAlignmentFactor; 8803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t ReturnAddressRegister; 8903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)}; 9003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 9103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 9203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)/// \brief DWARF Frame Description Entry (FDE) 9303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)class FDE : public FrameEntry { 9403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)public: 9503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // Each FDE has a CIE it's "linked to". Our FDE contains is constructed with 9603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // an offset to the CIE (provided by parsing the FDE header). The CIE itself 9703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // is obtained lazily once it's actually required. 9803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) FDE(DataExtractor D, uint64_t Offset, uint64_t Length, 9903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) int64_t LinkedCIEOffset, uint64_t InitialLocation, uint64_t AddressRange) 10003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) : FrameEntry(FK_FDE, D, Offset, Length), LinkedCIEOffset(LinkedCIEOffset), 10103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) InitialLocation(InitialLocation), AddressRange(AddressRange), 10203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) LinkedCIE(NULL) {} 10303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 10403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) ~FDE() { 10503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 10603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 10703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) void dumpHeader(raw_ostream &OS) const { 10803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) OS << format("%08x %08x %08x FDE ", 10903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) (uint32_t)Offset, (uint32_t)Length, LinkedCIEOffset); 11003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) OS << format("cie=%08x pc=%08x...%08x\n", 11103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) (uint32_t)LinkedCIEOffset, 11203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) (uint32_t)InitialLocation, 11303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) (uint32_t)InitialLocation + (uint32_t)AddressRange); 11403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) OS << "\n"; 11503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) if (LinkedCIE) { 11603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) OS << format("%p\n", LinkedCIE); 11703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 11803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 11903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 12003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) static bool classof(const FrameEntry *FE) { 12103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) return FE->getKind() == FK_FDE; 12203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 12303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)private: 12403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 12503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) /// The following fields are defined in section 6.4.1 of the DWARF standard v3 12603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t LinkedCIEOffset; 12703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t InitialLocation; 12803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t AddressRange; 12903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) CIE *LinkedCIE; 13003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)}; 13103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 13203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 13303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)DWARFDebugFrame::DWARFDebugFrame() { 13403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)} 13503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 13603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 13703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)DWARFDebugFrame::~DWARFDebugFrame() { 13803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) for (EntryVector::iterator I = Entries.begin(), E = Entries.end(); 13903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) I != E; ++I) { 14003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) delete *I; 14103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 14203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)} 14303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 14403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 14503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)static void LLVM_ATTRIBUTE_UNUSED dumpDataAux(DataExtractor Data, 14603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint32_t Offset, int Length) { 14703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) errs() << "DUMP: "; 14803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) for (int i = 0; i < Length; ++i) { 14903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint8_t c = Data.getU8(&Offset); 15003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) errs().write_hex(c); errs() << " "; 15103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 15203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) errs() << "\n"; 15303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)} 15403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 15503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 15603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)void DWARFDebugFrame::parse(DataExtractor Data) { 15703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint32_t Offset = 0; 15803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 15903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) while (Data.isValidOffset(Offset)) { 16003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint32_t StartOffset = Offset; 16103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 16203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) bool IsDWARF64 = false; 16303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t Length = Data.getU32(&Offset); 16403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t Id; 16503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 16603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) if (Length == UINT32_MAX) { 16703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // DWARF-64 is distinguished by the first 32 bits of the initial length 16803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // field being 0xffffffff. Then, the next 64 bits are the actual entry 16903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // length. 17003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) IsDWARF64 = true; 17103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) Length = Data.getU64(&Offset); 17203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 17303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 17403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // At this point, Offset points to the next field after Length. 17503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // Length is the structure size excluding itself. Compute an offset one 17603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // past the end of the structure (needed to know how many instructions to 17703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // read). 17803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // TODO: For honest DWARF64 support, DataExtractor will have to treat 17903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // offset_ptr as uint64_t* 18003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint32_t EndStructureOffset = Offset + static_cast<uint32_t>(Length); 18103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 18203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // The Id field's size depends on the DWARF format 18303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) Id = Data.getUnsigned(&Offset, IsDWARF64 ? 8 : 4); 18403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) bool IsCIE = ((IsDWARF64 && Id == DW64_CIE_ID) || Id == DW_CIE_ID); 18503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 18603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) if (IsCIE) { 18703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // Note: this is specifically DWARFv3 CIE header structure. It was 18803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // changed in DWARFv4. 18903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint8_t Version = Data.getU8(&Offset); 19003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) const char *Augmentation = Data.getCStr(&Offset); 19103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t CodeAlignmentFactor = Data.getULEB128(&Offset); 19203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) int64_t DataAlignmentFactor = Data.getSLEB128(&Offset); 19303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t ReturnAddressRegister = Data.getULEB128(&Offset); 19403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 19503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) CIE *NewCIE = new CIE(Data, StartOffset, Length, Version, 19603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) StringRef(Augmentation), CodeAlignmentFactor, 19703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) DataAlignmentFactor, ReturnAddressRegister); 19803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) Entries.push_back(NewCIE); 19903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } else { 20003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // FDE 20103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t CIEPointer = Id; 20203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t InitialLocation = Data.getAddress(&Offset); 20303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) uint64_t AddressRange = Data.getAddress(&Offset); 20403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 20503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) FDE *NewFDE = new FDE(Data, StartOffset, Length, CIEPointer, 20603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) InitialLocation, AddressRange); 20703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) Entries.push_back(NewFDE); 20803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 20903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 21003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) Offset = EndStructureOffset; 21103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 21203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)} 21303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 21403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 21503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)void DWARFDebugFrame::dump(raw_ostream &OS) const { 21603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) OS << "\n"; 21703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) for (EntryVector::const_iterator I = Entries.begin(), E = Entries.end(); 21803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) I != E; ++I) { 21903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) (*I)->dumpHeader(OS); 22003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 22103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)} 22203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 22303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)