[llvm] r196140 - DebugInfo: Rename DwarfCompileUnit.* to DwarfUnit.* to match their contents.
Eric Christopher
echristo at gmail.com
Mon Dec 2 14:01:46 PST 2013
> -#include "DwarfCompileUnit.h"
> +//#include "DwarfCompileUnit.h"
Ahem. :)
-eric
> #include "llvm/ADT/ArrayRef.h"
> #include "llvm/ADT/StringRef.h"
> #include "llvm/Support/Debug.h"
>
> Removed: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp?rev=196139&view=auto
> ==============================================================================
> --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp (original)
> +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp (removed)
> @@ -1,1983 +0,0 @@
> -//===-- llvm/CodeGen/DwarfUnit.cpp - Dwarf Type and Compile Units ---------===//
> -//
> -// The LLVM Compiler Infrastructure
> -//
> -// This file is distributed under the University of Illinois Open Source
> -// License. See LICENSE.TXT for details.
> -//
> -//===----------------------------------------------------------------------===//
> -//
> -// This file contains support for constructing a dwarf compile unit.
> -//
> -//===----------------------------------------------------------------------===//
> -
> -#define DEBUG_TYPE "dwarfdebug"
> -
> -#include "DwarfCompileUnit.h"
> -#include "DwarfAccelTable.h"
> -#include "DwarfDebug.h"
> -#include "llvm/ADT/APFloat.h"
> -#include "llvm/DIBuilder.h"
> -#include "llvm/IR/Constants.h"
> -#include "llvm/IR/DataLayout.h"
> -#include "llvm/IR/GlobalVariable.h"
> -#include "llvm/IR/Instructions.h"
> -#include "llvm/MC/MCSection.h"
> -#include "llvm/MC/MCStreamer.h"
> -#include "llvm/Target/Mangler.h"
> -#include "llvm/Target/TargetFrameLowering.h"
> -#include "llvm/Target/TargetMachine.h"
> -#include "llvm/Target/TargetLoweringObjectFile.h"
> -#include "llvm/Target/TargetRegisterInfo.h"
> -#include "llvm/Support/CommandLine.h"
> -
> -using namespace llvm;
> -
> -static cl::opt<bool> GenerateTypeUnits("generate-type-units", cl::Hidden,
> - cl::desc("Generate DWARF4 type units."),
> - cl::init(false));
> -
> -/// Unit - Compile unit constructor.
> -Unit::Unit(unsigned UID, DIE *D, DICompileUnit Node, AsmPrinter *A,
> - DwarfDebug *DW, DwarfUnits *DWU)
> - : UniqueID(UID), Node(Node), CUDie(D), DebugInfoOffset(0), Asm(A), DD(DW),
> - DU(DWU), IndexTyDie(0) {
> - DIEIntegerOne = new (DIEValueAllocator) DIEInteger(1);
> -}
> -
> -CompileUnit::CompileUnit(unsigned UID, DIE *D, DICompileUnit Node,
> - AsmPrinter *A, DwarfDebug *DW, DwarfUnits *DWU)
> - : Unit(UID, D, Node, A, DW, DWU) {
> - insertDIE(Node, D);
> -}
> -
> -TypeUnit::TypeUnit(unsigned UID, DIE *D, uint16_t Language, AsmPrinter *A,
> - DwarfDebug *DW, DwarfUnits *DWU)
> - : Unit(UID, D, DICompileUnit(), A, DW, DWU), Language(Language) {}
> -
> -/// ~Unit - Destructor for compile unit.
> -Unit::~Unit() {
> - for (unsigned j = 0, M = DIEBlocks.size(); j < M; ++j)
> - DIEBlocks[j]->~DIEBlock();
> -}
> -
> -/// createDIEEntry - Creates a new DIEEntry to be a proxy for a debug
> -/// information entry.
> -DIEEntry *Unit::createDIEEntry(DIE *Entry) {
> - DIEEntry *Value = new (DIEValueAllocator) DIEEntry(Entry);
> - return Value;
> -}
> -
> -/// getDefaultLowerBound - Return the default lower bound for an array. If the
> -/// DWARF version doesn't handle the language, return -1.
> -int64_t Unit::getDefaultLowerBound() const {
> - switch (getLanguage()) {
> - default:
> - break;
> -
> - case dwarf::DW_LANG_C89:
> - case dwarf::DW_LANG_C99:
> - case dwarf::DW_LANG_C:
> - case dwarf::DW_LANG_C_plus_plus:
> - case dwarf::DW_LANG_ObjC:
> - case dwarf::DW_LANG_ObjC_plus_plus:
> - return 0;
> -
> - case dwarf::DW_LANG_Fortran77:
> - case dwarf::DW_LANG_Fortran90:
> - case dwarf::DW_LANG_Fortran95:
> - return 1;
> -
> - // The languages below have valid values only if the DWARF version >= 4.
> - case dwarf::DW_LANG_Java:
> - case dwarf::DW_LANG_Python:
> - case dwarf::DW_LANG_UPC:
> - case dwarf::DW_LANG_D:
> - if (dwarf::DWARF_VERSION >= 4)
> - return 0;
> - break;
> -
> - case dwarf::DW_LANG_Ada83:
> - case dwarf::DW_LANG_Ada95:
> - case dwarf::DW_LANG_Cobol74:
> - case dwarf::DW_LANG_Cobol85:
> - case dwarf::DW_LANG_Modula2:
> - case dwarf::DW_LANG_Pascal83:
> - case dwarf::DW_LANG_PLI:
> - if (dwarf::DWARF_VERSION >= 4)
> - return 1;
> - break;
> - }
> -
> - return -1;
> -}
> -
> -/// Check whether the DIE for this MDNode can be shared across CUs.
> -static bool isShareableAcrossCUs(DIDescriptor D) {
> - // When the MDNode can be part of the type system, the DIE can be shared
> - // across CUs.
> - // Combining type units and cross-CU DIE sharing is lower value (since
> - // cross-CU DIE sharing is used in LTO and removes type redundancy at that
> - // level already) but may be implementable for some value in projects
> - // building multiple independent libraries with LTO and then linking those
> - // together.
> - return (D.isType() ||
> - (D.isSubprogram() && !DISubprogram(D).isDefinition())) &&
> - !GenerateTypeUnits;
> -}
> -
> -/// getDIE - Returns the debug information entry map slot for the
> -/// specified debug variable. We delegate the request to DwarfDebug
> -/// when the DIE for this MDNode can be shared across CUs. The mappings
> -/// will be kept in DwarfDebug for shareable DIEs.
> -DIE *Unit::getDIE(DIDescriptor D) const {
> - if (isShareableAcrossCUs(D))
> - return DD->getDIE(D);
> - return MDNodeToDieMap.lookup(D);
> -}
> -
> -/// insertDIE - Insert DIE into the map. We delegate the request to DwarfDebug
> -/// when the DIE for this MDNode can be shared across CUs. The mappings
> -/// will be kept in DwarfDebug for shareable DIEs.
> -void Unit::insertDIE(DIDescriptor Desc, DIE *D) {
> - if (isShareableAcrossCUs(Desc)) {
> - DD->insertDIE(Desc, D);
> - return;
> - }
> - MDNodeToDieMap.insert(std::make_pair(Desc, D));
> -}
> -
> -/// addFlag - Add a flag that is true.
> -void Unit::addFlag(DIE *Die, dwarf::Attribute Attribute) {
> - if (DD->getDwarfVersion() >= 4)
> - Die->addValue(Attribute, dwarf::DW_FORM_flag_present, DIEIntegerOne);
> - else
> - Die->addValue(Attribute, dwarf::DW_FORM_flag, DIEIntegerOne);
> -}
> -
> -/// addUInt - Add an unsigned integer attribute data and value.
> -///
> -void Unit::addUInt(DIE *Die, dwarf::Attribute Attribute,
> - Optional<dwarf::Form> Form, uint64_t Integer) {
> - if (!Form)
> - Form = DIEInteger::BestForm(false, Integer);
> - DIEValue *Value = Integer == 1 ? DIEIntegerOne : new (DIEValueAllocator)
> - DIEInteger(Integer);
> - Die->addValue(Attribute, *Form, Value);
> -}
> -
> -void Unit::addUInt(DIEBlock *Block, dwarf::Form Form, uint64_t Integer) {
> - addUInt(Block, (dwarf::Attribute)0, Form, Integer);
> -}
> -
> -/// addSInt - Add an signed integer attribute data and value.
> -///
> -void Unit::addSInt(DIE *Die, dwarf::Attribute Attribute,
> - Optional<dwarf::Form> Form, int64_t Integer) {
> - if (!Form)
> - Form = DIEInteger::BestForm(true, Integer);
> - DIEValue *Value = new (DIEValueAllocator) DIEInteger(Integer);
> - Die->addValue(Attribute, *Form, Value);
> -}
> -
> -void Unit::addSInt(DIEBlock *Die, Optional<dwarf::Form> Form, int64_t Integer) {
> - addSInt(Die, (dwarf::Attribute)0, Form, Integer);
> -}
> -
> -/// addString - Add a string attribute data and value. We always emit a
> -/// reference to the string pool instead of immediate strings so that DIEs have
> -/// more predictable sizes. In the case of split dwarf we emit an index
> -/// into another table which gets us the static offset into the string
> -/// table.
> -void Unit::addString(DIE *Die, dwarf::Attribute Attribute, StringRef String) {
> - DIEValue *Value;
> - dwarf::Form Form;
> - if (!DD->useSplitDwarf()) {
> - MCSymbol *Symb = DU->getStringPoolEntry(String);
> - if (Asm->needsRelocationsForDwarfStringPool())
> - Value = new (DIEValueAllocator) DIELabel(Symb);
> - else {
> - MCSymbol *StringPool = DU->getStringPoolSym();
> - Value = new (DIEValueAllocator) DIEDelta(Symb, StringPool);
> - }
> - Form = dwarf::DW_FORM_strp;
> - } else {
> - unsigned idx = DU->getStringPoolIndex(String);
> - Value = new (DIEValueAllocator) DIEInteger(idx);
> - Form = dwarf::DW_FORM_GNU_str_index;
> - }
> - DIEValue *Str = new (DIEValueAllocator) DIEString(Value, String);
> - Die->addValue(Attribute, Form, Str);
> -}
> -
> -/// addLocalString - Add a string attribute data and value. This is guaranteed
> -/// to be in the local string pool instead of indirected.
> -void Unit::addLocalString(DIE *Die, dwarf::Attribute Attribute,
> - StringRef String) {
> - MCSymbol *Symb = DU->getStringPoolEntry(String);
> - DIEValue *Value;
> - if (Asm->needsRelocationsForDwarfStringPool())
> - Value = new (DIEValueAllocator) DIELabel(Symb);
> - else {
> - MCSymbol *StringPool = DU->getStringPoolSym();
> - Value = new (DIEValueAllocator) DIEDelta(Symb, StringPool);
> - }
> - Die->addValue(Attribute, dwarf::DW_FORM_strp, Value);
> -}
> -
> -/// addExpr - Add a Dwarf expression attribute data and value.
> -///
> -void Unit::addExpr(DIEBlock *Die, dwarf::Form Form, const MCExpr *Expr) {
> - DIEValue *Value = new (DIEValueAllocator) DIEExpr(Expr);
> - Die->addValue((dwarf::Attribute)0, Form, Value);
> -}
> -
> -/// addLabel - Add a Dwarf label attribute data and value.
> -///
> -void Unit::addLabel(DIE *Die, dwarf::Attribute Attribute, dwarf::Form Form,
> - const MCSymbol *Label) {
> - DIEValue *Value = new (DIEValueAllocator) DIELabel(Label);
> - Die->addValue(Attribute, Form, Value);
> -}
> -
> -void Unit::addLabel(DIEBlock *Die, dwarf::Form Form, const MCSymbol *Label) {
> - addLabel(Die, (dwarf::Attribute)0, Form, Label);
> -}
> -
> -/// addSectionLabel - Add a Dwarf section label attribute data and value.
> -///
> -void Unit::addSectionLabel(DIE *Die, dwarf::Attribute Attribute,
> - const MCSymbol *Label) {
> - if (DD->getDwarfVersion() >= 4)
> - addLabel(Die, Attribute, dwarf::DW_FORM_sec_offset, Label);
> - else
> - addLabel(Die, Attribute, dwarf::DW_FORM_data4, Label);
> -}
> -
> -/// addSectionOffset - Add an offset into a section attribute data and value.
> -///
> -void Unit::addSectionOffset(DIE *Die, dwarf::Attribute Attribute,
> - uint64_t Integer) {
> - if (DD->getDwarfVersion() >= 4)
> - addUInt(Die, Attribute, dwarf::DW_FORM_sec_offset, Integer);
> - else
> - addUInt(Die, Attribute, dwarf::DW_FORM_data4, Integer);
> -}
> -
> -/// addLabelAddress - Add a dwarf label attribute data and value using
> -/// DW_FORM_addr or DW_FORM_GNU_addr_index.
> -///
> -void CompileUnit::addLabelAddress(DIE *Die, dwarf::Attribute Attribute,
> - MCSymbol *Label) {
> - if (Label)
> - DD->addArangeLabel(SymbolCU(this, Label));
> -
> - if (!DD->useSplitDwarf()) {
> - if (Label != NULL) {
> - DIEValue *Value = new (DIEValueAllocator) DIELabel(Label);
> - Die->addValue(Attribute, dwarf::DW_FORM_addr, Value);
> - } else {
> - DIEValue *Value = new (DIEValueAllocator) DIEInteger(0);
> - Die->addValue(Attribute, dwarf::DW_FORM_addr, Value);
> - }
> - } else {
> - unsigned idx = DU->getAddrPoolIndex(Label);
> - DIEValue *Value = new (DIEValueAllocator) DIEInteger(idx);
> - Die->addValue(Attribute, dwarf::DW_FORM_GNU_addr_index, Value);
> - }
> -}
> -
> -/// addOpAddress - Add a dwarf op address data and value using the
> -/// form given and an op of either DW_FORM_addr or DW_FORM_GNU_addr_index.
> -///
> -void Unit::addOpAddress(DIEBlock *Die, const MCSymbol *Sym) {
> - if (!DD->useSplitDwarf()) {
> - addUInt(Die, dwarf::DW_FORM_data1, dwarf::DW_OP_addr);
> - addLabel(Die, dwarf::DW_FORM_udata, Sym);
> - } else {
> - addUInt(Die, dwarf::DW_FORM_data1, dwarf::DW_OP_GNU_addr_index);
> - addUInt(Die, dwarf::DW_FORM_GNU_addr_index, DU->getAddrPoolIndex(Sym));
> - }
> -}
> -
> -/// addSectionDelta - Add a section label delta attribute data and value.
> -///
> -void Unit::addSectionDelta(DIE *Die, dwarf::Attribute Attribute,
> - const MCSymbol *Hi, const MCSymbol *Lo) {
> - DIEValue *Value = new (DIEValueAllocator) DIEDelta(Hi, Lo);
> - if (DD->getDwarfVersion() >= 4)
> - Die->addValue(Attribute, dwarf::DW_FORM_sec_offset, Value);
> - else
> - Die->addValue(Attribute, dwarf::DW_FORM_data4, Value);
> -}
> -
> -/// addDIEEntry - Add a DIE attribute data and value.
> -///
> -void Unit::addDIEEntry(DIE *Die, dwarf::Attribute Attribute, DIE *Entry) {
> - addDIEEntry(Die, Attribute, createDIEEntry(Entry));
> -}
> -
> -void Unit::addDIEEntry(DIE *Die, dwarf::Attribute Attribute, DIEEntry *Entry) {
> - const DIE *DieCU = Die->getUnitOrNull();
> - const DIE *EntryCU = Entry->getEntry()->getUnitOrNull();
> - if (!DieCU)
> - // We assume that Die belongs to this CU, if it is not linked to any CU yet.
> - DieCU = getCUDie();
> - if (!EntryCU)
> - EntryCU = getCUDie();
> - Die->addValue(Attribute, EntryCU == DieCU ? dwarf::DW_FORM_ref4
> - : dwarf::DW_FORM_ref_addr,
> - Entry);
> -}
> -
> -/// Create a DIE with the given Tag, add the DIE to its parent, and
> -/// call insertDIE if MD is not null.
> -DIE *Unit::createAndAddDIE(unsigned Tag, DIE &Parent, DIDescriptor N) {
> - DIE *Die = new DIE(Tag);
> - Parent.addChild(Die);
> - if (N)
> - insertDIE(N, Die);
> - return Die;
> -}
> -
> -/// addBlock - Add block data.
> -///
> -void Unit::addBlock(DIE *Die, dwarf::Attribute Attribute, DIEBlock *Block) {
> - Block->ComputeSize(Asm);
> - DIEBlocks.push_back(Block); // Memoize so we can call the destructor later on.
> - Die->addValue(Attribute, Block->BestForm(), Block);
> -}
> -
> -/// addSourceLine - Add location information to specified debug information
> -/// entry.
> -void Unit::addSourceLine(DIE *Die, DIVariable V) {
> - // Verify variable.
> - if (!V.isVariable())
> - return;
> -
> - unsigned Line = V.getLineNumber();
> - if (Line == 0)
> - return;
> - unsigned FileID =
> - DD->getOrCreateSourceID(V.getContext().getFilename(),
> - V.getContext().getDirectory(), getUniqueID());
> - assert(FileID && "Invalid file id");
> - addUInt(Die, dwarf::DW_AT_decl_file, None, FileID);
> - addUInt(Die, dwarf::DW_AT_decl_line, None, Line);
> -}
> -
> -/// addSourceLine - Add location information to specified debug information
> -/// entry.
> -void Unit::addSourceLine(DIE *Die, DIGlobalVariable G) {
> - // Verify global variable.
> - if (!G.isGlobalVariable())
> - return;
> -
> - unsigned Line = G.getLineNumber();
> - if (Line == 0)
> - return;
> - unsigned FileID =
> - DD->getOrCreateSourceID(G.getFilename(), G.getDirectory(), getUniqueID());
> - assert(FileID && "Invalid file id");
> - addUInt(Die, dwarf::DW_AT_decl_file, None, FileID);
> - addUInt(Die, dwarf::DW_AT_decl_line, None, Line);
> -}
> -
> -/// addSourceLine - Add location information to specified debug information
> -/// entry.
> -void Unit::addSourceLine(DIE *Die, DISubprogram SP) {
> - // Verify subprogram.
> - if (!SP.isSubprogram())
> - return;
> -
> - // If the line number is 0, don't add it.
> - unsigned Line = SP.getLineNumber();
> - if (Line == 0)
> - return;
> -
> - unsigned FileID = DD->getOrCreateSourceID(SP.getFilename(), SP.getDirectory(),
> - getUniqueID());
> - assert(FileID && "Invalid file id");
> - addUInt(Die, dwarf::DW_AT_decl_file, None, FileID);
> - addUInt(Die, dwarf::DW_AT_decl_line, None, Line);
> -}
> -
> -/// addSourceLine - Add location information to specified debug information
> -/// entry.
> -void Unit::addSourceLine(DIE *Die, DIType Ty) {
> - // Verify type.
> - if (!Ty.isType())
> - return;
> -
> - unsigned Line = Ty.getLineNumber();
> - if (Line == 0)
> - return;
> - unsigned FileID = DD->getOrCreateSourceID(Ty.getFilename(), Ty.getDirectory(),
> - getUniqueID());
> - assert(FileID && "Invalid file id");
> - addUInt(Die, dwarf::DW_AT_decl_file, None, FileID);
> - addUInt(Die, dwarf::DW_AT_decl_line, None, Line);
> -}
> -
> -/// addSourceLine - Add location information to specified debug information
> -/// entry.
> -void Unit::addSourceLine(DIE *Die, DIObjCProperty Ty) {
> - // Verify type.
> - if (!Ty.isObjCProperty())
> - return;
> -
> - unsigned Line = Ty.getLineNumber();
> - if (Line == 0)
> - return;
> - DIFile File = Ty.getFile();
> - unsigned FileID = DD->getOrCreateSourceID(File.getFilename(),
> - File.getDirectory(), getUniqueID());
> - assert(FileID && "Invalid file id");
> - addUInt(Die, dwarf::DW_AT_decl_file, None, FileID);
> - addUInt(Die, dwarf::DW_AT_decl_line, None, Line);
> -}
> -
> -/// addSourceLine - Add location information to specified debug information
> -/// entry.
> -void Unit::addSourceLine(DIE *Die, DINameSpace NS) {
> - // Verify namespace.
> - if (!NS.Verify())
> - return;
> -
> - unsigned Line = NS.getLineNumber();
> - if (Line == 0)
> - return;
> - StringRef FN = NS.getFilename();
> -
> - unsigned FileID =
> - DD->getOrCreateSourceID(FN, NS.getDirectory(), getUniqueID());
> - assert(FileID && "Invalid file id");
> - addUInt(Die, dwarf::DW_AT_decl_file, None, FileID);
> - addUInt(Die, dwarf::DW_AT_decl_line, None, Line);
> -}
> -
> -/// addVariableAddress - Add DW_AT_location attribute for a
> -/// DbgVariable based on provided MachineLocation.
> -void Unit::addVariableAddress(const DbgVariable &DV, DIE *Die,
> - MachineLocation Location) {
> - if (DV.variableHasComplexAddress())
> - addComplexAddress(DV, Die, dwarf::DW_AT_location, Location);
> - else if (DV.isBlockByrefVariable())
> - addBlockByrefAddress(DV, Die, dwarf::DW_AT_location, Location);
> - else
> - addAddress(Die, dwarf::DW_AT_location, Location,
> - DV.getVariable().isIndirect());
> -}
> -
> -/// addRegisterOp - Add register operand.
> -void Unit::addRegisterOp(DIEBlock *TheDie, unsigned Reg) {
> - const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo();
> - unsigned DWReg = RI->getDwarfRegNum(Reg, false);
> - if (DWReg < 32)
> - addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_reg0 + DWReg);
> - else {
> - addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_regx);
> - addUInt(TheDie, dwarf::DW_FORM_udata, DWReg);
> - }
> -}
> -
> -/// addRegisterOffset - Add register offset.
> -void Unit::addRegisterOffset(DIEBlock *TheDie, unsigned Reg, int64_t Offset) {
> - const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo();
> - unsigned DWReg = RI->getDwarfRegNum(Reg, false);
> - const TargetRegisterInfo *TRI = Asm->TM.getRegisterInfo();
> - if (Reg == TRI->getFrameRegister(*Asm->MF))
> - // If variable offset is based in frame register then use fbreg.
> - addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_fbreg);
> - else if (DWReg < 32)
> - addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_breg0 + DWReg);
> - else {
> - addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_bregx);
> - addUInt(TheDie, dwarf::DW_FORM_udata, DWReg);
> - }
> - addSInt(TheDie, dwarf::DW_FORM_sdata, Offset);
> -}
> -
> -/// addAddress - Add an address attribute to a die based on the location
> -/// provided.
> -void Unit::addAddress(DIE *Die, dwarf::Attribute Attribute,
> - const MachineLocation &Location, bool Indirect) {
> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
> -
> - if (Location.isReg() && !Indirect)
> - addRegisterOp(Block, Location.getReg());
> - else {
> - addRegisterOffset(Block, Location.getReg(), Location.getOffset());
> - if (Indirect && !Location.isReg()) {
> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
> - }
> - }
> -
> - // Now attach the location information to the DIE.
> - addBlock(Die, Attribute, Block);
> -}
> -
> -/// addComplexAddress - Start with the address based on the location provided,
> -/// and generate the DWARF information necessary to find the actual variable
> -/// given the extra address information encoded in the DIVariable, starting from
> -/// the starting location. Add the DWARF information to the die.
> -///
> -void Unit::addComplexAddress(const DbgVariable &DV, DIE *Die,
> - dwarf::Attribute Attribute,
> - const MachineLocation &Location) {
> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
> - unsigned N = DV.getNumAddrElements();
> - unsigned i = 0;
> - if (Location.isReg()) {
> - if (N >= 2 && DV.getAddrElement(0) == DIBuilder::OpPlus) {
> - // If first address element is OpPlus then emit
> - // DW_OP_breg + Offset instead of DW_OP_reg + Offset.
> - addRegisterOffset(Block, Location.getReg(), DV.getAddrElement(1));
> - i = 2;
> - } else
> - addRegisterOp(Block, Location.getReg());
> - } else
> - addRegisterOffset(Block, Location.getReg(), Location.getOffset());
> -
> - for (; i < N; ++i) {
> - uint64_t Element = DV.getAddrElement(i);
> - if (Element == DIBuilder::OpPlus) {
> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst);
> - addUInt(Block, dwarf::DW_FORM_udata, DV.getAddrElement(++i));
> - } else if (Element == DIBuilder::OpDeref) {
> - if (!Location.isReg())
> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
> - } else
> - llvm_unreachable("unknown DIBuilder Opcode");
> - }
> -
> - // Now attach the location information to the DIE.
> - addBlock(Die, Attribute, Block);
> -}
> -
> -/* Byref variables, in Blocks, are declared by the programmer as "SomeType
> - VarName;", but the compiler creates a __Block_byref_x_VarName struct, and
> - gives the variable VarName either the struct, or a pointer to the struct, as
> - its type. This is necessary for various behind-the-scenes things the
> - compiler needs to do with by-reference variables in Blocks.
> -
> - However, as far as the original *programmer* is concerned, the variable
> - should still have type 'SomeType', as originally declared.
> -
> - The function getBlockByrefType dives into the __Block_byref_x_VarName
> - struct to find the original type of the variable, which is then assigned to
> - the variable's Debug Information Entry as its real type. So far, so good.
> - However now the debugger will expect the variable VarName to have the type
> - SomeType. So we need the location attribute for the variable to be an
> - expression that explains to the debugger how to navigate through the
> - pointers and struct to find the actual variable of type SomeType.
> -
> - The following function does just that. We start by getting
> - the "normal" location for the variable. This will be the location
> - of either the struct __Block_byref_x_VarName or the pointer to the
> - struct __Block_byref_x_VarName.
> -
> - The struct will look something like:
> -
> - struct __Block_byref_x_VarName {
> - ... <various fields>
> - struct __Block_byref_x_VarName *forwarding;
> - ... <various other fields>
> - SomeType VarName;
> - ... <maybe more fields>
> - };
> -
> - If we are given the struct directly (as our starting point) we
> - need to tell the debugger to:
> -
> - 1). Add the offset of the forwarding field.
> -
> - 2). Follow that pointer to get the real __Block_byref_x_VarName
> - struct to use (the real one may have been copied onto the heap).
> -
> - 3). Add the offset for the field VarName, to find the actual variable.
> -
> - If we started with a pointer to the struct, then we need to
> - dereference that pointer first, before the other steps.
> - Translating this into DWARF ops, we will need to append the following
> - to the current location description for the variable:
> -
> - DW_OP_deref -- optional, if we start with a pointer
> - DW_OP_plus_uconst <forward_fld_offset>
> - DW_OP_deref
> - DW_OP_plus_uconst <varName_fld_offset>
> -
> - That is what this function does. */
> -
> -/// addBlockByrefAddress - Start with the address based on the location
> -/// provided, and generate the DWARF information necessary to find the
> -/// actual Block variable (navigating the Block struct) based on the
> -/// starting location. Add the DWARF information to the die. For
> -/// more information, read large comment just above here.
> -///
> -void Unit::addBlockByrefAddress(const DbgVariable &DV, DIE *Die,
> - dwarf::Attribute Attribute,
> - const MachineLocation &Location) {
> - DIType Ty = DV.getType();
> - DIType TmpTy = Ty;
> - uint16_t Tag = Ty.getTag();
> - bool isPointer = false;
> -
> - StringRef varName = DV.getName();
> -
> - if (Tag == dwarf::DW_TAG_pointer_type) {
> - DIDerivedType DTy(Ty);
> - TmpTy = resolve(DTy.getTypeDerivedFrom());
> - isPointer = true;
> - }
> -
> - DICompositeType blockStruct(TmpTy);
> -
> - // Find the __forwarding field and the variable field in the __Block_byref
> - // struct.
> - DIArray Fields = blockStruct.getTypeArray();
> - DIDerivedType varField;
> - DIDerivedType forwardingField;
> -
> - for (unsigned i = 0, N = Fields.getNumElements(); i < N; ++i) {
> - DIDerivedType DT(Fields.getElement(i));
> - StringRef fieldName = DT.getName();
> - if (fieldName == "__forwarding")
> - forwardingField = DT;
> - else if (fieldName == varName)
> - varField = DT;
> - }
> -
> - // Get the offsets for the forwarding field and the variable field.
> - unsigned forwardingFieldOffset = forwardingField.getOffsetInBits() >> 3;
> - unsigned varFieldOffset = varField.getOffsetInBits() >> 2;
> -
> - // Decode the original location, and use that as the start of the byref
> - // variable's location.
> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
> -
> - if (Location.isReg())
> - addRegisterOp(Block, Location.getReg());
> - else
> - addRegisterOffset(Block, Location.getReg(), Location.getOffset());
> -
> - // If we started with a pointer to the __Block_byref... struct, then
> - // the first thing we need to do is dereference the pointer (DW_OP_deref).
> - if (isPointer)
> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
> -
> - // Next add the offset for the '__forwarding' field:
> - // DW_OP_plus_uconst ForwardingFieldOffset. Note there's no point in
> - // adding the offset if it's 0.
> - if (forwardingFieldOffset > 0) {
> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst);
> - addUInt(Block, dwarf::DW_FORM_udata, forwardingFieldOffset);
> - }
> -
> - // Now dereference the __forwarding field to get to the real __Block_byref
> - // struct: DW_OP_deref.
> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
> -
> - // Now that we've got the real __Block_byref... struct, add the offset
> - // for the variable's field to get to the location of the actual variable:
> - // DW_OP_plus_uconst varFieldOffset. Again, don't add if it's 0.
> - if (varFieldOffset > 0) {
> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst);
> - addUInt(Block, dwarf::DW_FORM_udata, varFieldOffset);
> - }
> -
> - // Now attach the location information to the DIE.
> - addBlock(Die, Attribute, Block);
> -}
> -
> -/// isTypeSigned - Return true if the type is signed.
> -static bool isTypeSigned(DwarfDebug *DD, DIType Ty, int *SizeInBits) {
> - if (Ty.isDerivedType())
> - return isTypeSigned(DD, DD->resolve(DIDerivedType(Ty).getTypeDerivedFrom()),
> - SizeInBits);
> - if (Ty.isBasicType())
> - if (DIBasicType(Ty).getEncoding() == dwarf::DW_ATE_signed ||
> - DIBasicType(Ty).getEncoding() == dwarf::DW_ATE_signed_char) {
> - *SizeInBits = Ty.getSizeInBits();
> - return true;
> - }
> - return false;
> -}
> -
> -/// Return true if type encoding is unsigned.
> -static bool isUnsignedDIType(DwarfDebug *DD, DIType Ty) {
> - DIDerivedType DTy(Ty);
> - if (DTy.isDerivedType())
> - return isUnsignedDIType(DD, DD->resolve(DTy.getTypeDerivedFrom()));
> -
> - DIBasicType BTy(Ty);
> - if (BTy.isBasicType()) {
> - unsigned Encoding = BTy.getEncoding();
> - if (Encoding == dwarf::DW_ATE_unsigned ||
> - Encoding == dwarf::DW_ATE_unsigned_char ||
> - Encoding == dwarf::DW_ATE_boolean)
> - return true;
> - }
> - return false;
> -}
> -
> -/// If this type is derived from a base type then return base type size.
> -static uint64_t getBaseTypeSize(DwarfDebug *DD, DIDerivedType Ty) {
> - unsigned Tag = Ty.getTag();
> -
> - if (Tag != dwarf::DW_TAG_member && Tag != dwarf::DW_TAG_typedef &&
> - Tag != dwarf::DW_TAG_const_type && Tag != dwarf::DW_TAG_volatile_type &&
> - Tag != dwarf::DW_TAG_restrict_type)
> - return Ty.getSizeInBits();
> -
> - DIType BaseType = DD->resolve(Ty.getTypeDerivedFrom());
> -
> - // If this type is not derived from any type then take conservative approach.
> - if (!BaseType.isValid())
> - return Ty.getSizeInBits();
> -
> - // If this is a derived type, go ahead and get the base type, unless it's a
> - // reference then it's just the size of the field. Pointer types have no need
> - // of this since they're a different type of qualification on the type.
> - if (BaseType.getTag() == dwarf::DW_TAG_reference_type ||
> - BaseType.getTag() == dwarf::DW_TAG_rvalue_reference_type)
> - return Ty.getSizeInBits();
> -
> - if (BaseType.isDerivedType())
> - return getBaseTypeSize(DD, DIDerivedType(BaseType));
> -
> - return BaseType.getSizeInBits();
> -}
> -
> -/// addConstantValue - Add constant value entry in variable DIE.
> -void Unit::addConstantValue(DIE *Die, const MachineOperand &MO, DIType Ty) {
> - // FIXME: This is a bit conservative/simple - it emits negative values at
> - // their maximum bit width which is a bit unfortunate (& doesn't prefer
> - // udata/sdata over dataN as suggested by the DWARF spec)
> - assert(MO.isImm() && "Invalid machine operand!");
> - int SizeInBits = -1;
> - bool SignedConstant = isTypeSigned(DD, Ty, &SizeInBits);
> - dwarf::Form Form;
> -
> - // If we're a signed constant definitely use sdata.
> - if (SignedConstant) {
> - addSInt(Die, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata, MO.getImm());
> - return;
> - }
> -
> - // Else use data for now unless it's larger than we can deal with.
> - switch (SizeInBits) {
> - case 8:
> - Form = dwarf::DW_FORM_data1;
> - break;
> - case 16:
> - Form = dwarf::DW_FORM_data2;
> - break;
> - case 32:
> - Form = dwarf::DW_FORM_data4;
> - break;
> - case 64:
> - Form = dwarf::DW_FORM_data8;
> - break;
> - default:
> - Form = dwarf::DW_FORM_udata;
> - addUInt(Die, dwarf::DW_AT_const_value, Form, MO.getImm());
> - return;
> - }
> - addUInt(Die, dwarf::DW_AT_const_value, Form, MO.getImm());
> -}
> -
> -/// addConstantFPValue - Add constant value entry in variable DIE.
> -void Unit::addConstantFPValue(DIE *Die, const MachineOperand &MO) {
> - assert(MO.isFPImm() && "Invalid machine operand!");
> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
> - APFloat FPImm = MO.getFPImm()->getValueAPF();
> -
> - // Get the raw data form of the floating point.
> - const APInt FltVal = FPImm.bitcastToAPInt();
> - const char *FltPtr = (const char *)FltVal.getRawData();
> -
> - int NumBytes = FltVal.getBitWidth() / 8; // 8 bits per byte.
> - bool LittleEndian = Asm->getDataLayout().isLittleEndian();
> - int Incr = (LittleEndian ? 1 : -1);
> - int Start = (LittleEndian ? 0 : NumBytes - 1);
> - int Stop = (LittleEndian ? NumBytes : -1);
> -
> - // Output the constant to DWARF one byte at a time.
> - for (; Start != Stop; Start += Incr)
> - addUInt(Block, dwarf::DW_FORM_data1, (unsigned char)0xFF & FltPtr[Start]);
> -
> - addBlock(Die, dwarf::DW_AT_const_value, Block);
> -}
> -
> -/// addConstantFPValue - Add constant value entry in variable DIE.
> -void Unit::addConstantFPValue(DIE *Die, const ConstantFP *CFP) {
> - // Pass this down to addConstantValue as an unsigned bag of bits.
> - addConstantValue(Die, CFP->getValueAPF().bitcastToAPInt(), true);
> -}
> -
> -/// addConstantValue - Add constant value entry in variable DIE.
> -void Unit::addConstantValue(DIE *Die, const ConstantInt *CI, bool Unsigned) {
> - addConstantValue(Die, CI->getValue(), Unsigned);
> -}
> -
> -// addConstantValue - Add constant value entry in variable DIE.
> -void Unit::addConstantValue(DIE *Die, const APInt &Val, bool Unsigned) {
> - unsigned CIBitWidth = Val.getBitWidth();
> - if (CIBitWidth <= 64) {
> - // If we're a signed constant definitely use sdata.
> - if (!Unsigned) {
> - addSInt(Die, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata,
> - Val.getSExtValue());
> - return;
> - }
> -
> - // Else use data for now unless it's larger than we can deal with.
> - dwarf::Form Form;
> - switch (CIBitWidth) {
> - case 8:
> - Form = dwarf::DW_FORM_data1;
> - break;
> - case 16:
> - Form = dwarf::DW_FORM_data2;
> - break;
> - case 32:
> - Form = dwarf::DW_FORM_data4;
> - break;
> - case 64:
> - Form = dwarf::DW_FORM_data8;
> - break;
> - default:
> - addUInt(Die, dwarf::DW_AT_const_value, dwarf::DW_FORM_udata,
> - Val.getZExtValue());
> - return;
> - }
> - addUInt(Die, dwarf::DW_AT_const_value, Form, Val.getZExtValue());
> - return;
> - }
> -
> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
> -
> - // Get the raw data form of the large APInt.
> - const uint64_t *Ptr64 = Val.getRawData();
> -
> - int NumBytes = Val.getBitWidth() / 8; // 8 bits per byte.
> - bool LittleEndian = Asm->getDataLayout().isLittleEndian();
> -
> - // Output the constant to DWARF one byte at a time.
> - for (int i = 0; i < NumBytes; i++) {
> - uint8_t c;
> - if (LittleEndian)
> - c = Ptr64[i / 8] >> (8 * (i & 7));
> - else
> - c = Ptr64[(NumBytes - 1 - i) / 8] >> (8 * ((NumBytes - 1 - i) & 7));
> - addUInt(Block, dwarf::DW_FORM_data1, c);
> - }
> -
> - addBlock(Die, dwarf::DW_AT_const_value, Block);
> -}
> -
> -/// addTemplateParams - Add template parameters into buffer.
> -void Unit::addTemplateParams(DIE &Buffer, DIArray TParams) {
> - // Add template parameters.
> - for (unsigned i = 0, e = TParams.getNumElements(); i != e; ++i) {
> - DIDescriptor Element = TParams.getElement(i);
> - if (Element.isTemplateTypeParameter())
> - constructTemplateTypeParameterDIE(Buffer,
> - DITemplateTypeParameter(Element));
> - else if (Element.isTemplateValueParameter())
> - constructTemplateValueParameterDIE(Buffer,
> - DITemplateValueParameter(Element));
> - }
> -}
> -
> -/// getOrCreateContextDIE - Get context owner's DIE.
> -DIE *Unit::getOrCreateContextDIE(DIScope Context) {
> - if (!Context || Context.isFile())
> - return getCUDie();
> - if (Context.isType())
> - return getOrCreateTypeDIE(DIType(Context));
> - if (Context.isNameSpace())
> - return getOrCreateNameSpace(DINameSpace(Context));
> - if (Context.isSubprogram())
> - return getOrCreateSubprogramDIE(DISubprogram(Context));
> - return getDIE(Context);
> -}
> -
> -DIE *Unit::createTypeDIE(DICompositeType Ty) {
> - DIScope Context = resolve(Ty.getContext());
> - DIE *ContextDIE = getOrCreateContextDIE(Context);
> -
> - DIE *TyDIE = getDIE(Ty);
> - if (TyDIE)
> - return TyDIE;
> -
> - // Create new type.
> - TyDIE = createAndAddDIE(Ty.getTag(), *ContextDIE, Ty);
> -
> - constructTypeDIE(*TyDIE, Ty);
> -
> - updateAcceleratorTables(Context, Ty, TyDIE);
> - return TyDIE;
> -}
> -
> -/// Return true if the type is appropriately scoped to be contained inside
> -/// its own type unit.
> -static bool isTypeUnitScoped(DIType Ty, const DwarfDebug *DD) {
> - DIScope Parent = DD->resolve(Ty.getContext());
> - while (Parent) {
> - // Don't generate a hash for anything scoped inside a function.
> - if (Parent.isSubprogram())
> - return false;
> - Parent = DD->resolve(Parent.getContext());
> - }
> - return true;
> -}
> -
> -/// Return true if the type should be split out into a type unit.
> -static bool shouldCreateTypeUnit(DICompositeType CTy, const DwarfDebug *DD) {
> - if (!GenerateTypeUnits)
> - return false;
> -
> - uint16_t Tag = CTy.getTag();
> -
> - switch (Tag) {
> - case dwarf::DW_TAG_structure_type:
> - case dwarf::DW_TAG_union_type:
> - case dwarf::DW_TAG_enumeration_type:
> - case dwarf::DW_TAG_class_type:
> - // If this is a class, structure, union, or enumeration type
> - // that is a definition (not a declaration), and not scoped
> - // inside a function then separate this out as a type unit.
> - return !CTy.isForwardDecl() && isTypeUnitScoped(CTy, DD);
> - default:
> - return false;
> - }
> -}
> -
> -/// getOrCreateTypeDIE - Find existing DIE or create new DIE for the
> -/// given DIType.
> -DIE *Unit::getOrCreateTypeDIE(const MDNode *TyNode) {
> - if (!TyNode)
> - return NULL;
> -
> - DIType Ty(TyNode);
> - assert(Ty.isType());
> -
> - // Construct the context before querying for the existence of the DIE in case
> - // such construction creates the DIE.
> - DIScope Context = resolve(Ty.getContext());
> - DIE *ContextDIE = getOrCreateContextDIE(Context);
> - assert(ContextDIE);
> -
> - DIE *TyDIE = getDIE(Ty);
> - if (TyDIE)
> - return TyDIE;
> -
> - // Create new type.
> - TyDIE = createAndAddDIE(Ty.getTag(), *ContextDIE, Ty);
> -
> - if (Ty.isBasicType())
> - constructTypeDIE(*TyDIE, DIBasicType(Ty));
> - else if (Ty.isCompositeType()) {
> - DICompositeType CTy(Ty);
> - if (shouldCreateTypeUnit(CTy, DD)) {
> - DD->addTypeUnitType(getLanguage(), TyDIE, CTy);
> - // Skip updating the accellerator tables since this is not the full type
> - return TyDIE;
> - }
> - constructTypeDIE(*TyDIE, CTy);
> - } else {
> - assert(Ty.isDerivedType() && "Unknown kind of DIType");
> - constructTypeDIE(*TyDIE, DIDerivedType(Ty));
> - }
> -
> - updateAcceleratorTables(Context, Ty, TyDIE);
> -
> - return TyDIE;
> -}
> -
> -void Unit::updateAcceleratorTables(DIScope Context, DIType Ty,
> - const DIE *TyDIE) {
> - if (!Ty.getName().empty() && !Ty.isForwardDecl()) {
> - bool IsImplementation = 0;
> - if (Ty.isCompositeType()) {
> - DICompositeType CT(Ty);
> - // A runtime language of 0 actually means C/C++ and that any
> - // non-negative value is some version of Objective-C/C++.
> - IsImplementation = (CT.getRunTimeLang() == 0) || CT.isObjcClassComplete();
> - }
> - unsigned Flags = IsImplementation ? dwarf::DW_FLAG_type_implementation : 0;
> - addAccelType(Ty.getName(), std::make_pair(TyDIE, Flags));
> -
> - if (!Context || Context.isCompileUnit() || Context.isFile() ||
> - Context.isNameSpace())
> - GlobalTypes[getParentContextString(Context) + Ty.getName().str()] = TyDIE;
> - }
> -}
> -
> -/// addType - Add a new type attribute to the specified entity.
> -void Unit::addType(DIE *Entity, DIType Ty, dwarf::Attribute Attribute) {
> - assert(Ty && "Trying to add a type that doesn't exist?");
> -
> - // Check for pre-existence.
> - DIEEntry *Entry = getDIEEntry(Ty);
> - // If it exists then use the existing value.
> - if (Entry) {
> - addDIEEntry(Entity, Attribute, Entry);
> - return;
> - }
> -
> - // Construct type.
> - DIE *Buffer = getOrCreateTypeDIE(Ty);
> -
> - // Set up proxy.
> - Entry = createDIEEntry(Buffer);
> - insertDIEEntry(Ty, Entry);
> - addDIEEntry(Entity, Attribute, Entry);
> -}
> -
> -// Accelerator table mutators - add each name along with its companion
> -// DIE to the proper table while ensuring that the name that we're going
> -// to reference is in the string table. We do this since the names we
> -// add may not only be identical to the names in the DIE.
> -void Unit::addAccelName(StringRef Name, const DIE *Die) {
> - DU->getStringPoolEntry(Name);
> - std::vector<const DIE *> &DIEs = AccelNames[Name];
> - DIEs.push_back(Die);
> -}
> -
> -void Unit::addAccelObjC(StringRef Name, const DIE *Die) {
> - DU->getStringPoolEntry(Name);
> - std::vector<const DIE *> &DIEs = AccelObjC[Name];
> - DIEs.push_back(Die);
> -}
> -
> -void Unit::addAccelNamespace(StringRef Name, const DIE *Die) {
> - DU->getStringPoolEntry(Name);
> - std::vector<const DIE *> &DIEs = AccelNamespace[Name];
> - DIEs.push_back(Die);
> -}
> -
> -void Unit::addAccelType(StringRef Name, std::pair<const DIE *, unsigned> Die) {
> - DU->getStringPoolEntry(Name);
> - std::vector<std::pair<const DIE *, unsigned> > &DIEs = AccelTypes[Name];
> - DIEs.push_back(Die);
> -}
> -
> -/// addGlobalName - Add a new global name to the compile unit.
> -void Unit::addGlobalName(StringRef Name, DIE *Die, DIScope Context) {
> - std::string FullName = getParentContextString(Context) + Name.str();
> - GlobalNames[FullName] = Die;
> -}
> -
> -/// getParentContextString - Walks the metadata parent chain in a language
> -/// specific manner (using the compile unit language) and returns
> -/// it as a string. This is done at the metadata level because DIEs may
> -/// not currently have been added to the parent context and walking the
> -/// DIEs looking for names is more expensive than walking the metadata.
> -std::string Unit::getParentContextString(DIScope Context) const {
> - if (!Context)
> - return "";
> -
> - // FIXME: Decide whether to implement this for non-C++ languages.
> - if (getLanguage() != dwarf::DW_LANG_C_plus_plus)
> - return "";
> -
> - std::string CS;
> - SmallVector<DIScope, 1> Parents;
> - while (!Context.isCompileUnit()) {
> - Parents.push_back(Context);
> - if (Context.getContext())
> - Context = resolve(Context.getContext());
> - else
> - // Structure, etc types will have a NULL context if they're at the top
> - // level.
> - break;
> - }
> -
> - // Reverse iterate over our list to go from the outermost construct to the
> - // innermost.
> - for (SmallVectorImpl<DIScope>::reverse_iterator I = Parents.rbegin(),
> - E = Parents.rend();
> - I != E; ++I) {
> - DIScope Ctx = *I;
> - StringRef Name = Ctx.getName();
> - if (!Name.empty()) {
> - CS += Name;
> - CS += "::";
> - }
> - }
> - return CS;
> -}
> -
> -/// constructTypeDIE - Construct basic type die from DIBasicType.
> -void Unit::constructTypeDIE(DIE &Buffer, DIBasicType BTy) {
> - // Get core information.
> - StringRef Name = BTy.getName();
> - // Add name if not anonymous or intermediate type.
> - if (!Name.empty())
> - addString(&Buffer, dwarf::DW_AT_name, Name);
> -
> - // An unspecified type only has a name attribute.
> - if (BTy.getTag() == dwarf::DW_TAG_unspecified_type)
> - return;
> -
> - addUInt(&Buffer, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1,
> - BTy.getEncoding());
> -
> - uint64_t Size = BTy.getSizeInBits() >> 3;
> - addUInt(&Buffer, dwarf::DW_AT_byte_size, None, Size);
> -}
> -
> -/// constructTypeDIE - Construct derived type die from DIDerivedType.
> -void Unit::constructTypeDIE(DIE &Buffer, DIDerivedType DTy) {
> - // Get core information.
> - StringRef Name = DTy.getName();
> - uint64_t Size = DTy.getSizeInBits() >> 3;
> - uint16_t Tag = Buffer.getTag();
> -
> - // Map to main type, void will not have a type.
> - DIType FromTy = resolve(DTy.getTypeDerivedFrom());
> - if (FromTy)
> - addType(&Buffer, FromTy);
> -
> - // Add name if not anonymous or intermediate type.
> - if (!Name.empty())
> - addString(&Buffer, dwarf::DW_AT_name, Name);
> -
> - // Add size if non-zero (derived types might be zero-sized.)
> - if (Size && Tag != dwarf::DW_TAG_pointer_type)
> - addUInt(&Buffer, dwarf::DW_AT_byte_size, None, Size);
> -
> - if (Tag == dwarf::DW_TAG_ptr_to_member_type)
> - addDIEEntry(&Buffer, dwarf::DW_AT_containing_type,
> - getOrCreateTypeDIE(resolve(DTy.getClassType())));
> - // Add source line info if available and TyDesc is not a forward declaration.
> - if (!DTy.isForwardDecl())
> - addSourceLine(&Buffer, DTy);
> -}
> -
> -/// constructTypeDIE - Construct type DIE from DICompositeType.
> -void Unit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
> - // Add name if not anonymous or intermediate type.
> - StringRef Name = CTy.getName();
> -
> - uint64_t Size = CTy.getSizeInBits() >> 3;
> - uint16_t Tag = Buffer.getTag();
> -
> - switch (Tag) {
> - case dwarf::DW_TAG_array_type:
> - constructArrayTypeDIE(Buffer, CTy);
> - break;
> - case dwarf::DW_TAG_enumeration_type:
> - constructEnumTypeDIE(Buffer, CTy);
> - break;
> - case dwarf::DW_TAG_subroutine_type: {
> - // Add return type. A void return won't have a type.
> - DIArray Elements = CTy.getTypeArray();
> - DIType RTy(Elements.getElement(0));
> - if (RTy)
> - addType(&Buffer, RTy);
> -
> - bool isPrototyped = true;
> - // Add arguments.
> - for (unsigned i = 1, N = Elements.getNumElements(); i < N; ++i) {
> - DIDescriptor Ty = Elements.getElement(i);
> - if (Ty.isUnspecifiedParameter()) {
> - createAndAddDIE(dwarf::DW_TAG_unspecified_parameters, Buffer);
> - isPrototyped = false;
> - } else {
> - DIE *Arg = createAndAddDIE(dwarf::DW_TAG_formal_parameter, Buffer);
> - addType(Arg, DIType(Ty));
> - if (DIType(Ty).isArtificial())
> - addFlag(Arg, dwarf::DW_AT_artificial);
> - }
> - }
> - // Add prototype flag if we're dealing with a C language and the
> - // function has been prototyped.
> - uint16_t Language = getLanguage();
> - if (isPrototyped &&
> - (Language == dwarf::DW_LANG_C89 || Language == dwarf::DW_LANG_C99 ||
> - Language == dwarf::DW_LANG_ObjC))
> - addFlag(&Buffer, dwarf::DW_AT_prototyped);
> - } break;
> - case dwarf::DW_TAG_structure_type:
> - case dwarf::DW_TAG_union_type:
> - case dwarf::DW_TAG_class_type: {
> - // Add elements to structure type.
> - DIArray Elements = CTy.getTypeArray();
> - for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
> - DIDescriptor Element = Elements.getElement(i);
> - DIE *ElemDie = NULL;
> - if (Element.isSubprogram()) {
> - DISubprogram SP(Element);
> - ElemDie = getOrCreateSubprogramDIE(SP);
> - if (SP.isProtected())
> - addUInt(ElemDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
> - dwarf::DW_ACCESS_protected);
> - else if (SP.isPrivate())
> - addUInt(ElemDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
> - dwarf::DW_ACCESS_private);
> - else
> - addUInt(ElemDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
> - dwarf::DW_ACCESS_public);
> - if (SP.isExplicit())
> - addFlag(ElemDie, dwarf::DW_AT_explicit);
> - } else if (Element.isDerivedType()) {
> - DIDerivedType DDTy(Element);
> - if (DDTy.getTag() == dwarf::DW_TAG_friend) {
> - ElemDie = createAndAddDIE(dwarf::DW_TAG_friend, Buffer);
> - addType(ElemDie, resolve(DDTy.getTypeDerivedFrom()),
> - dwarf::DW_AT_friend);
> - } else if (DDTy.isStaticMember()) {
> - getOrCreateStaticMemberDIE(DDTy);
> - } else {
> - constructMemberDIE(Buffer, DDTy);
> - }
> - } else if (Element.isObjCProperty()) {
> - DIObjCProperty Property(Element);
> - ElemDie = createAndAddDIE(Property.getTag(), Buffer);
> - StringRef PropertyName = Property.getObjCPropertyName();
> - addString(ElemDie, dwarf::DW_AT_APPLE_property_name, PropertyName);
> - addType(ElemDie, Property.getType());
> - addSourceLine(ElemDie, Property);
> - StringRef GetterName = Property.getObjCPropertyGetterName();
> - if (!GetterName.empty())
> - addString(ElemDie, dwarf::DW_AT_APPLE_property_getter, GetterName);
> - StringRef SetterName = Property.getObjCPropertySetterName();
> - if (!SetterName.empty())
> - addString(ElemDie, dwarf::DW_AT_APPLE_property_setter, SetterName);
> - unsigned PropertyAttributes = 0;
> - if (Property.isReadOnlyObjCProperty())
> - PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readonly;
> - if (Property.isReadWriteObjCProperty())
> - PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readwrite;
> - if (Property.isAssignObjCProperty())
> - PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_assign;
> - if (Property.isRetainObjCProperty())
> - PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_retain;
> - if (Property.isCopyObjCProperty())
> - PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_copy;
> - if (Property.isNonAtomicObjCProperty())
> - PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_nonatomic;
> - if (PropertyAttributes)
> - addUInt(ElemDie, dwarf::DW_AT_APPLE_property_attribute, None,
> - PropertyAttributes);
> -
> - DIEEntry *Entry = getDIEEntry(Element);
> - if (!Entry) {
> - Entry = createDIEEntry(ElemDie);
> - insertDIEEntry(Element, Entry);
> - }
> - } else
> - continue;
> - }
> -
> - if (CTy.isAppleBlockExtension())
> - addFlag(&Buffer, dwarf::DW_AT_APPLE_block);
> -
> - DICompositeType ContainingType(resolve(CTy.getContainingType()));
> - if (ContainingType)
> - addDIEEntry(&Buffer, dwarf::DW_AT_containing_type,
> - getOrCreateTypeDIE(ContainingType));
> -
> - if (CTy.isObjcClassComplete())
> - addFlag(&Buffer, dwarf::DW_AT_APPLE_objc_complete_type);
> -
> - // Add template parameters to a class, structure or union types.
> - // FIXME: The support isn't in the metadata for this yet.
> - if (Tag == dwarf::DW_TAG_class_type ||
> - Tag == dwarf::DW_TAG_structure_type || Tag == dwarf::DW_TAG_union_type)
> - addTemplateParams(Buffer, CTy.getTemplateParams());
> -
> - break;
> - }
> - default:
> - break;
> - }
> -
> - // Add name if not anonymous or intermediate type.
> - if (!Name.empty())
> - addString(&Buffer, dwarf::DW_AT_name, Name);
> -
> - if (Tag == dwarf::DW_TAG_enumeration_type ||
> - Tag == dwarf::DW_TAG_class_type || Tag == dwarf::DW_TAG_structure_type ||
> - Tag == dwarf::DW_TAG_union_type) {
> - // Add size if non-zero (derived types might be zero-sized.)
> - // TODO: Do we care about size for enum forward declarations?
> - if (Size)
> - addUInt(&Buffer, dwarf::DW_AT_byte_size, None, Size);
> - else if (!CTy.isForwardDecl())
> - // Add zero size if it is not a forward declaration.
> - addUInt(&Buffer, dwarf::DW_AT_byte_size, None, 0);
> -
> - // If we're a forward decl, say so.
> - if (CTy.isForwardDecl())
> - addFlag(&Buffer, dwarf::DW_AT_declaration);
> -
> - // Add source line info if available.
> - if (!CTy.isForwardDecl())
> - addSourceLine(&Buffer, CTy);
> -
> - // No harm in adding the runtime language to the declaration.
> - unsigned RLang = CTy.getRunTimeLang();
> - if (RLang)
> - addUInt(&Buffer, dwarf::DW_AT_APPLE_runtime_class, dwarf::DW_FORM_data1,
> - RLang);
> - }
> -}
> -
> -/// constructTemplateTypeParameterDIE - Construct new DIE for the given
> -/// DITemplateTypeParameter.
> -void Unit::constructTemplateTypeParameterDIE(DIE &Buffer,
> - DITemplateTypeParameter TP) {
> - DIE *ParamDIE =
> - createAndAddDIE(dwarf::DW_TAG_template_type_parameter, Buffer);
> - // Add the type if it exists, it could be void and therefore no type.
> - if (TP.getType())
> - addType(ParamDIE, resolve(TP.getType()));
> - if (!TP.getName().empty())
> - addString(ParamDIE, dwarf::DW_AT_name, TP.getName());
> -}
> -
> -/// constructTemplateValueParameterDIE - Construct new DIE for the given
> -/// DITemplateValueParameter.
> -void Unit::constructTemplateValueParameterDIE(DIE &Buffer,
> - DITemplateValueParameter VP) {
> - DIE *ParamDIE = createAndAddDIE(VP.getTag(), Buffer);
> -
> - // Add the type if there is one, template template and template parameter
> - // packs will not have a type.
> - if (VP.getTag() == dwarf::DW_TAG_template_value_parameter)
> - addType(ParamDIE, resolve(VP.getType()));
> - if (!VP.getName().empty())
> - addString(ParamDIE, dwarf::DW_AT_name, VP.getName());
> - if (Value *Val = VP.getValue()) {
> - if (ConstantInt *CI = dyn_cast<ConstantInt>(Val))
> - addConstantValue(ParamDIE, CI,
> - isUnsignedDIType(DD, resolve(VP.getType())));
> - else if (GlobalValue *GV = dyn_cast<GlobalValue>(Val)) {
> - // For declaration non-type template parameters (such as global values and
> - // functions)
> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
> - addOpAddress(Block, Asm->getSymbol(GV));
> - // Emit DW_OP_stack_value to use the address as the immediate value of the
> - // parameter, rather than a pointer to it.
> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_stack_value);
> - addBlock(ParamDIE, dwarf::DW_AT_location, Block);
> - } else if (VP.getTag() == dwarf::DW_TAG_GNU_template_template_param) {
> - assert(isa<MDString>(Val));
> - addString(ParamDIE, dwarf::DW_AT_GNU_template_name,
> - cast<MDString>(Val)->getString());
> - } else if (VP.getTag() == dwarf::DW_TAG_GNU_template_parameter_pack) {
> - assert(isa<MDNode>(Val));
> - DIArray A(cast<MDNode>(Val));
> - addTemplateParams(*ParamDIE, A);
> - }
> - }
> -}
> -
> -/// getOrCreateNameSpace - Create a DIE for DINameSpace.
> -DIE *Unit::getOrCreateNameSpace(DINameSpace NS) {
> - // Construct the context before querying for the existence of the DIE in case
> - // such construction creates the DIE.
> - DIE *ContextDIE = getOrCreateContextDIE(NS.getContext());
> -
> - DIE *NDie = getDIE(NS);
> - if (NDie)
> - return NDie;
> - NDie = createAndAddDIE(dwarf::DW_TAG_namespace, *ContextDIE, NS);
> -
> - if (!NS.getName().empty()) {
> - addString(NDie, dwarf::DW_AT_name, NS.getName());
> - addAccelNamespace(NS.getName(), NDie);
> - addGlobalName(NS.getName(), NDie, NS.getContext());
> - } else
> - addAccelNamespace("(anonymous namespace)", NDie);
> - addSourceLine(NDie, NS);
> - return NDie;
> -}
> -
> -/// getOrCreateSubprogramDIE - Create new DIE using SP.
> -DIE *Unit::getOrCreateSubprogramDIE(DISubprogram SP) {
> - // Construct the context before querying for the existence of the DIE in case
> - // such construction creates the DIE (as is the case for member function
> - // declarations).
> - DIE *ContextDIE = getOrCreateContextDIE(resolve(SP.getContext()));
> -
> - DIE *SPDie = getDIE(SP);
> - if (SPDie)
> - return SPDie;
> -
> - DISubprogram SPDecl = SP.getFunctionDeclaration();
> - if (SPDecl.isSubprogram())
> - // Add subprogram definitions to the CU die directly.
> - ContextDIE = CUDie.get();
> -
> - // DW_TAG_inlined_subroutine may refer to this DIE.
> - SPDie = createAndAddDIE(dwarf::DW_TAG_subprogram, *ContextDIE, SP);
> -
> - DIE *DeclDie = NULL;
> - if (SPDecl.isSubprogram())
> - DeclDie = getOrCreateSubprogramDIE(SPDecl);
> -
> - // Add function template parameters.
> - addTemplateParams(*SPDie, SP.getTemplateParams());
> -
> - // If this DIE is going to refer declaration info using AT_specification
> - // then there is no need to add other attributes.
> - if (DeclDie) {
> - // Refer function declaration directly.
> - addDIEEntry(SPDie, dwarf::DW_AT_specification, DeclDie);
> -
> - return SPDie;
> - }
> -
> - // Add the linkage name if we have one.
> - StringRef LinkageName = SP.getLinkageName();
> - if (!LinkageName.empty())
> - addString(SPDie, dwarf::DW_AT_MIPS_linkage_name,
> - GlobalValue::getRealLinkageName(LinkageName));
> -
> - // Constructors and operators for anonymous aggregates do not have names.
> - if (!SP.getName().empty())
> - addString(SPDie, dwarf::DW_AT_name, SP.getName());
> -
> - addSourceLine(SPDie, SP);
> -
> - // Add the prototype if we have a prototype and we have a C like
> - // language.
> - uint16_t Language = getLanguage();
> - if (SP.isPrototyped() &&
> - (Language == dwarf::DW_LANG_C89 || Language == dwarf::DW_LANG_C99 ||
> - Language == dwarf::DW_LANG_ObjC))
> - addFlag(SPDie, dwarf::DW_AT_prototyped);
> -
> - DICompositeType SPTy = SP.getType();
> - assert(SPTy.getTag() == dwarf::DW_TAG_subroutine_type &&
> - "the type of a subprogram should be a subroutine");
> -
> - DIArray Args = SPTy.getTypeArray();
> - // Add a return type. If this is a type like a C/C++ void type we don't add a
> - // return type.
> - if (Args.getElement(0))
> - addType(SPDie, DIType(Args.getElement(0)));
> -
> - unsigned VK = SP.getVirtuality();
> - if (VK) {
> - addUInt(SPDie, dwarf::DW_AT_virtuality, dwarf::DW_FORM_data1, VK);
> - DIEBlock *Block = getDIEBlock();
> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_constu);
> - addUInt(Block, dwarf::DW_FORM_udata, SP.getVirtualIndex());
> - addBlock(SPDie, dwarf::DW_AT_vtable_elem_location, Block);
> - ContainingTypeMap.insert(
> - std::make_pair(SPDie, resolve(SP.getContainingType())));
> - }
> -
> - if (!SP.isDefinition()) {
> - addFlag(SPDie, dwarf::DW_AT_declaration);
> -
> - // Add arguments. Do not add arguments for subprogram definition. They will
> - // be handled while processing variables.
> - for (unsigned i = 1, N = Args.getNumElements(); i < N; ++i) {
> - DIE *Arg = createAndAddDIE(dwarf::DW_TAG_formal_parameter, *SPDie);
> - DIType ATy(Args.getElement(i));
> - addType(Arg, ATy);
> - if (ATy.isArtificial())
> - addFlag(Arg, dwarf::DW_AT_artificial);
> - }
> - }
> -
> - if (SP.isArtificial())
> - addFlag(SPDie, dwarf::DW_AT_artificial);
> -
> - if (!SP.isLocalToUnit())
> - addFlag(SPDie, dwarf::DW_AT_external);
> -
> - if (SP.isOptimized())
> - addFlag(SPDie, dwarf::DW_AT_APPLE_optimized);
> -
> - if (unsigned isa = Asm->getISAEncoding()) {
> - addUInt(SPDie, dwarf::DW_AT_APPLE_isa, dwarf::DW_FORM_flag, isa);
> - }
> -
> - return SPDie;
> -}
> -
> -// Return const expression if value is a GEP to access merged global
> -// constant. e.g.
> -// i8* getelementptr ({ i8, i8, i8, i8 }* @_MergedGlobals, i32 0, i32 0)
> -static const ConstantExpr *getMergedGlobalExpr(const Value *V) {
> - const ConstantExpr *CE = dyn_cast_or_null<ConstantExpr>(V);
> - if (!CE || CE->getNumOperands() != 3 ||
> - CE->getOpcode() != Instruction::GetElementPtr)
> - return NULL;
> -
> - // First operand points to a global struct.
> - Value *Ptr = CE->getOperand(0);
> - if (!isa<GlobalValue>(Ptr) ||
> - !isa<StructType>(cast<PointerType>(Ptr->getType())->getElementType()))
> - return NULL;
> -
> - // Second operand is zero.
> - const ConstantInt *CI = dyn_cast_or_null<ConstantInt>(CE->getOperand(1));
> - if (!CI || !CI->isZero())
> - return NULL;
> -
> - // Third operand is offset.
> - if (!isa<ConstantInt>(CE->getOperand(2)))
> - return NULL;
> -
> - return CE;
> -}
> -
> -/// createGlobalVariableDIE - create global variable DIE.
> -void CompileUnit::createGlobalVariableDIE(DIGlobalVariable GV) {
> - // Check for pre-existence.
> - if (getDIE(GV))
> - return;
> -
> - if (!GV.isGlobalVariable())
> - return;
> -
> - DIScope GVContext = GV.getContext();
> - DIType GTy = GV.getType();
> -
> - // If this is a static data member definition, some attributes belong
> - // to the declaration DIE.
> - DIE *VariableDIE = NULL;
> - bool IsStaticMember = false;
> - DIDerivedType SDMDecl = GV.getStaticDataMemberDeclaration();
> - if (SDMDecl.Verify()) {
> - assert(SDMDecl.isStaticMember() && "Expected static member decl");
> - // We need the declaration DIE that is in the static member's class.
> - VariableDIE = getOrCreateStaticMemberDIE(SDMDecl);
> - IsStaticMember = true;
> - }
> -
> - // If this is not a static data member definition, create the variable
> - // DIE and add the initial set of attributes to it.
> - if (!VariableDIE) {
> - // Construct the context before querying for the existence of the DIE in
> - // case such construction creates the DIE.
> - DIE *ContextDIE = getOrCreateContextDIE(GVContext);
> -
> - // Add to map.
> - VariableDIE = createAndAddDIE(GV.getTag(), *ContextDIE, GV);
> -
> - // Add name and type.
> - addString(VariableDIE, dwarf::DW_AT_name, GV.getDisplayName());
> - addType(VariableDIE, GTy);
> -
> - // Add scoping info.
> - if (!GV.isLocalToUnit())
> - addFlag(VariableDIE, dwarf::DW_AT_external);
> -
> - // Add line number info.
> - addSourceLine(VariableDIE, GV);
> - }
> -
> - // Add location.
> - bool addToAccelTable = false;
> - DIE *VariableSpecDIE = NULL;
> - bool isGlobalVariable = GV.getGlobal() != NULL;
> - if (isGlobalVariable) {
> - addToAccelTable = true;
> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
> - const MCSymbol *Sym = Asm->getSymbol(GV.getGlobal());
> - if (GV.getGlobal()->isThreadLocal()) {
> - // FIXME: Make this work with -gsplit-dwarf.
> - unsigned PointerSize = Asm->getDataLayout().getPointerSize();
> - assert((PointerSize == 4 || PointerSize == 8) &&
> - "Add support for other sizes if necessary");
> - const MCExpr *Expr =
> - Asm->getObjFileLowering().getDebugThreadLocalSymbol(Sym);
> - // Based on GCC's support for TLS:
> - if (!DD->useSplitDwarf()) {
> - // 1) Start with a constNu of the appropriate pointer size
> - addUInt(Block, dwarf::DW_FORM_data1,
> - PointerSize == 4 ? dwarf::DW_OP_const4u : dwarf::DW_OP_const8u);
> - // 2) containing the (relocated) offset of the TLS variable
> - // within the module's TLS block.
> - addExpr(Block, dwarf::DW_FORM_udata, Expr);
> - } else {
> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_GNU_const_index);
> - addUInt(Block, dwarf::DW_FORM_udata, DU->getAddrPoolIndex(Expr));
> - }
> - // 3) followed by a custom OP to make the debugger do a TLS lookup.
> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_GNU_push_tls_address);
> - } else {
> - DD->addArangeLabel(SymbolCU(this, Sym));
> - addOpAddress(Block, Sym);
> - }
> - // Do not create specification DIE if context is either compile unit
> - // or a subprogram.
> - if (GVContext && GV.isDefinition() && !GVContext.isCompileUnit() &&
> - !GVContext.isFile() && !DD->isSubprogramContext(GVContext)) {
> - // Create specification DIE.
> - VariableSpecDIE = createAndAddDIE(dwarf::DW_TAG_variable, *CUDie);
> - addDIEEntry(VariableSpecDIE, dwarf::DW_AT_specification, VariableDIE);
> - addBlock(VariableSpecDIE, dwarf::DW_AT_location, Block);
> - // A static member's declaration is already flagged as such.
> - if (!SDMDecl.Verify())
> - addFlag(VariableDIE, dwarf::DW_AT_declaration);
> - } else {
> - addBlock(VariableDIE, dwarf::DW_AT_location, Block);
> - }
> - // Add the linkage name.
> - StringRef LinkageName = GV.getLinkageName();
> - if (!LinkageName.empty())
> - // From DWARF4: DIEs to which DW_AT_linkage_name may apply include:
> - // TAG_common_block, TAG_constant, TAG_entry_point, TAG_subprogram and
> - // TAG_variable.
> - addString(IsStaticMember && VariableSpecDIE ? VariableSpecDIE
> - : VariableDIE,
> - dwarf::DW_AT_MIPS_linkage_name,
> - GlobalValue::getRealLinkageName(LinkageName));
> - } else if (const ConstantInt *CI =
> - dyn_cast_or_null<ConstantInt>(GV.getConstant())) {
> - // AT_const_value was added when the static member was created. To avoid
> - // emitting AT_const_value multiple times, we only add AT_const_value when
> - // it is not a static member.
> - if (!IsStaticMember)
> - addConstantValue(VariableDIE, CI, isUnsignedDIType(DD, GTy));
> - } else if (const ConstantExpr *CE = getMergedGlobalExpr(GV->getOperand(11))) {
> - addToAccelTable = true;
> - // GV is a merged global.
> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
> - Value *Ptr = CE->getOperand(0);
> - MCSymbol *Sym = Asm->getSymbol(cast<GlobalValue>(Ptr));
> - DD->addArangeLabel(SymbolCU(this, Sym));
> - addOpAddress(Block, Sym);
> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_constu);
> - SmallVector<Value *, 3> Idx(CE->op_begin() + 1, CE->op_end());
> - addUInt(Block, dwarf::DW_FORM_udata,
> - Asm->getDataLayout().getIndexedOffset(Ptr->getType(), Idx));
> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_plus);
> - addBlock(VariableDIE, dwarf::DW_AT_location, Block);
> - }
> -
> - if (addToAccelTable) {
> - DIE *AddrDIE = VariableSpecDIE ? VariableSpecDIE : VariableDIE;
> - addAccelName(GV.getName(), AddrDIE);
> -
> - // If the linkage name is different than the name, go ahead and output
> - // that as well into the name table.
> - if (GV.getLinkageName() != "" && GV.getName() != GV.getLinkageName())
> - addAccelName(GV.getLinkageName(), AddrDIE);
> - }
> -
> - if (!GV.isLocalToUnit())
> - addGlobalName(GV.getName(), VariableSpecDIE ? VariableSpecDIE : VariableDIE,
> - GV.getContext());
> -}
> -
> -/// constructSubrangeDIE - Construct subrange DIE from DISubrange.
> -void Unit::constructSubrangeDIE(DIE &Buffer, DISubrange SR, DIE *IndexTy) {
> - DIE *DW_Subrange = createAndAddDIE(dwarf::DW_TAG_subrange_type, Buffer);
> - addDIEEntry(DW_Subrange, dwarf::DW_AT_type, IndexTy);
> -
> - // The LowerBound value defines the lower bounds which is typically zero for
> - // C/C++. The Count value is the number of elements. Values are 64 bit. If
> - // Count == -1 then the array is unbounded and we do not emit
> - // DW_AT_lower_bound and DW_AT_upper_bound attributes. If LowerBound == 0 and
> - // Count == 0, then the array has zero elements in which case we do not emit
> - // an upper bound.
> - int64_t LowerBound = SR.getLo();
> - int64_t DefaultLowerBound = getDefaultLowerBound();
> - int64_t Count = SR.getCount();
> -
> - if (DefaultLowerBound == -1 || LowerBound != DefaultLowerBound)
> - addUInt(DW_Subrange, dwarf::DW_AT_lower_bound, None, LowerBound);
> -
> - if (Count != -1 && Count != 0)
> - // FIXME: An unbounded array should reference the expression that defines
> - // the array.
> - addUInt(DW_Subrange, dwarf::DW_AT_upper_bound, None,
> - LowerBound + Count - 1);
> -}
> -
> -/// constructArrayTypeDIE - Construct array type DIE from DICompositeType.
> -void Unit::constructArrayTypeDIE(DIE &Buffer, DICompositeType CTy) {
> - if (CTy.isVector())
> - addFlag(&Buffer, dwarf::DW_AT_GNU_vector);
> -
> - // Emit the element type.
> - addType(&Buffer, resolve(CTy.getTypeDerivedFrom()));
> -
> - // Get an anonymous type for index type.
> - // FIXME: This type should be passed down from the front end
> - // as different languages may have different sizes for indexes.
> - DIE *IdxTy = getIndexTyDie();
> - if (!IdxTy) {
> - // Construct an anonymous type for index type.
> - IdxTy = createAndAddDIE(dwarf::DW_TAG_base_type, *CUDie.get());
> - addString(IdxTy, dwarf::DW_AT_name, "int");
> - addUInt(IdxTy, dwarf::DW_AT_byte_size, None, sizeof(int32_t));
> - addUInt(IdxTy, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1,
> - dwarf::DW_ATE_signed);
> - setIndexTyDie(IdxTy);
> - }
> -
> - // Add subranges to array type.
> - DIArray Elements = CTy.getTypeArray();
> - for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
> - DIDescriptor Element = Elements.getElement(i);
> - if (Element.getTag() == dwarf::DW_TAG_subrange_type)
> - constructSubrangeDIE(Buffer, DISubrange(Element), IdxTy);
> - }
> -}
> -
> -/// constructEnumTypeDIE - Construct an enum type DIE from DICompositeType.
> -void Unit::constructEnumTypeDIE(DIE &Buffer, DICompositeType CTy) {
> - DIArray Elements = CTy.getTypeArray();
> -
> - // Add enumerators to enumeration type.
> - for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
> - DIEnumerator Enum(Elements.getElement(i));
> - if (Enum.isEnumerator()) {
> - DIE *Enumerator = createAndAddDIE(dwarf::DW_TAG_enumerator, Buffer);
> - StringRef Name = Enum.getName();
> - addString(Enumerator, dwarf::DW_AT_name, Name);
> - int64_t Value = Enum.getEnumValue();
> - addSInt(Enumerator, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata,
> - Value);
> - }
> - }
> - DIType DTy = resolve(CTy.getTypeDerivedFrom());
> - if (DTy) {
> - addType(&Buffer, DTy);
> - addFlag(&Buffer, dwarf::DW_AT_enum_class);
> - }
> -}
> -
> -/// constructContainingTypeDIEs - Construct DIEs for types that contain
> -/// vtables.
> -void Unit::constructContainingTypeDIEs() {
> - for (DenseMap<DIE *, const MDNode *>::iterator CI = ContainingTypeMap.begin(),
> - CE = ContainingTypeMap.end();
> - CI != CE; ++CI) {
> - DIE *SPDie = CI->first;
> - DIDescriptor D(CI->second);
> - if (!D)
> - continue;
> - DIE *NDie = getDIE(D);
> - if (!NDie)
> - continue;
> - addDIEEntry(SPDie, dwarf::DW_AT_containing_type, NDie);
> - }
> -}
> -
> -/// constructVariableDIE - Construct a DIE for the given DbgVariable.
> -DIE *Unit::constructVariableDIE(DbgVariable &DV, bool isScopeAbstract) {
> - StringRef Name = DV.getName();
> -
> - // Define variable debug information entry.
> - DIE *VariableDie = new DIE(DV.getTag());
> - DbgVariable *AbsVar = DV.getAbstractVariable();
> - DIE *AbsDIE = AbsVar ? AbsVar->getDIE() : NULL;
> - if (AbsDIE)
> - addDIEEntry(VariableDie, dwarf::DW_AT_abstract_origin, AbsDIE);
> - else {
> - if (!Name.empty())
> - addString(VariableDie, dwarf::DW_AT_name, Name);
> - addSourceLine(VariableDie, DV.getVariable());
> - addType(VariableDie, DV.getType());
> - }
> -
> - if (DV.isArtificial())
> - addFlag(VariableDie, dwarf::DW_AT_artificial);
> -
> - if (isScopeAbstract) {
> - DV.setDIE(VariableDie);
> - return VariableDie;
> - }
> -
> - // Add variable address.
> -
> - unsigned Offset = DV.getDotDebugLocOffset();
> - if (Offset != ~0U) {
> - addSectionLabel(VariableDie, dwarf::DW_AT_location,
> - Asm->GetTempSymbol("debug_loc", Offset));
> - DV.setDIE(VariableDie);
> - return VariableDie;
> - }
> -
> - // Check if variable is described by a DBG_VALUE instruction.
> - if (const MachineInstr *DVInsn = DV.getMInsn()) {
> - assert(DVInsn->getNumOperands() == 3);
> - if (DVInsn->getOperand(0).isReg()) {
> - const MachineOperand RegOp = DVInsn->getOperand(0);
> - // If the second operand is an immediate, this is an indirect value.
> - if (DVInsn->getOperand(1).isImm()) {
> - MachineLocation Location(RegOp.getReg(),
> - DVInsn->getOperand(1).getImm());
> - addVariableAddress(DV, VariableDie, Location);
> - } else if (RegOp.getReg())
> - addVariableAddress(DV, VariableDie, MachineLocation(RegOp.getReg()));
> - } else if (DVInsn->getOperand(0).isImm())
> - addConstantValue(VariableDie, DVInsn->getOperand(0), DV.getType());
> - else if (DVInsn->getOperand(0).isFPImm())
> - addConstantFPValue(VariableDie, DVInsn->getOperand(0));
> - else if (DVInsn->getOperand(0).isCImm())
> - addConstantValue(VariableDie, DVInsn->getOperand(0).getCImm(),
> - isUnsignedDIType(DD, DV.getType()));
> -
> - DV.setDIE(VariableDie);
> - return VariableDie;
> - } else {
> - // .. else use frame index.
> - int FI = DV.getFrameIndex();
> - if (FI != ~0) {
> - unsigned FrameReg = 0;
> - const TargetFrameLowering *TFI = Asm->TM.getFrameLowering();
> - int Offset = TFI->getFrameIndexReference(*Asm->MF, FI, FrameReg);
> - MachineLocation Location(FrameReg, Offset);
> - addVariableAddress(DV, VariableDie, Location);
> - }
> - }
> -
> - DV.setDIE(VariableDie);
> - return VariableDie;
> -}
> -
> -/// constructMemberDIE - Construct member DIE from DIDerivedType.
> -void Unit::constructMemberDIE(DIE &Buffer, DIDerivedType DT) {
> - DIE *MemberDie = createAndAddDIE(DT.getTag(), Buffer);
> - StringRef Name = DT.getName();
> - if (!Name.empty())
> - addString(MemberDie, dwarf::DW_AT_name, Name);
> -
> - addType(MemberDie, resolve(DT.getTypeDerivedFrom()));
> -
> - addSourceLine(MemberDie, DT);
> -
> - DIEBlock *MemLocationDie = new (DIEValueAllocator) DIEBlock();
> - addUInt(MemLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst);
> -
> - if (DT.getTag() == dwarf::DW_TAG_inheritance && DT.isVirtual()) {
> -
> - // For C++, virtual base classes are not at fixed offset. Use following
> - // expression to extract appropriate offset from vtable.
> - // BaseAddr = ObAddr + *((*ObAddr) - Offset)
> -
> - DIEBlock *VBaseLocationDie = new (DIEValueAllocator) DIEBlock();
> - addUInt(VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_dup);
> - addUInt(VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
> - addUInt(VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_constu);
> - addUInt(VBaseLocationDie, dwarf::DW_FORM_udata, DT.getOffsetInBits());
> - addUInt(VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_minus);
> - addUInt(VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
> - addUInt(VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_plus);
> -
> - addBlock(MemberDie, dwarf::DW_AT_data_member_location, VBaseLocationDie);
> - } else {
> - uint64_t Size = DT.getSizeInBits();
> - uint64_t FieldSize = getBaseTypeSize(DD, DT);
> - uint64_t OffsetInBytes;
> -
> - if (Size != FieldSize) {
> - // Handle bitfield.
> - addUInt(MemberDie, dwarf::DW_AT_byte_size, None,
> - getBaseTypeSize(DD, DT) >> 3);
> - addUInt(MemberDie, dwarf::DW_AT_bit_size, None, DT.getSizeInBits());
> -
> - uint64_t Offset = DT.getOffsetInBits();
> - uint64_t AlignMask = ~(DT.getAlignInBits() - 1);
> - uint64_t HiMark = (Offset + FieldSize) & AlignMask;
> - uint64_t FieldOffset = (HiMark - FieldSize);
> - Offset -= FieldOffset;
> -
> - // Maybe we need to work from the other end.
> - if (Asm->getDataLayout().isLittleEndian())
> - Offset = FieldSize - (Offset + Size);
> - addUInt(MemberDie, dwarf::DW_AT_bit_offset, None, Offset);
> -
> - // Here WD_AT_data_member_location points to the anonymous
> - // field that includes this bit field.
> - OffsetInBytes = FieldOffset >> 3;
> - } else
> - // This is not a bitfield.
> - OffsetInBytes = DT.getOffsetInBits() >> 3;
> - addUInt(MemberDie, dwarf::DW_AT_data_member_location, None, OffsetInBytes);
> - }
> -
> - if (DT.isProtected())
> - addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
> - dwarf::DW_ACCESS_protected);
> - else if (DT.isPrivate())
> - addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
> - dwarf::DW_ACCESS_private);
> - // Otherwise C++ member and base classes are considered public.
> - else
> - addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
> - dwarf::DW_ACCESS_public);
> - if (DT.isVirtual())
> - addUInt(MemberDie, dwarf::DW_AT_virtuality, dwarf::DW_FORM_data1,
> - dwarf::DW_VIRTUALITY_virtual);
> -
> - // Objective-C properties.
> - if (MDNode *PNode = DT.getObjCProperty())
> - if (DIEEntry *PropertyDie = getDIEEntry(PNode))
> - MemberDie->addValue(dwarf::DW_AT_APPLE_property, dwarf::DW_FORM_ref4,
> - PropertyDie);
> -
> - if (DT.isArtificial())
> - addFlag(MemberDie, dwarf::DW_AT_artificial);
> -}
> -
> -/// getOrCreateStaticMemberDIE - Create new DIE for C++ static member.
> -DIE *Unit::getOrCreateStaticMemberDIE(DIDerivedType DT) {
> - if (!DT.Verify())
> - return NULL;
> -
> - // Construct the context before querying for the existence of the DIE in case
> - // such construction creates the DIE.
> - DIE *ContextDIE = getOrCreateContextDIE(resolve(DT.getContext()));
> - assert(dwarf::isType(ContextDIE->getTag()) &&
> - "Static member should belong to a type.");
> -
> - DIE *StaticMemberDIE = getDIE(DT);
> - if (StaticMemberDIE)
> - return StaticMemberDIE;
> -
> - StaticMemberDIE = createAndAddDIE(DT.getTag(), *ContextDIE, DT);
> -
> - DIType Ty = resolve(DT.getTypeDerivedFrom());
> -
> - addString(StaticMemberDIE, dwarf::DW_AT_name, DT.getName());
> - addType(StaticMemberDIE, Ty);
> - addSourceLine(StaticMemberDIE, DT);
> - addFlag(StaticMemberDIE, dwarf::DW_AT_external);
> - addFlag(StaticMemberDIE, dwarf::DW_AT_declaration);
> -
> - // FIXME: We could omit private if the parent is a class_type, and
> - // public if the parent is something else.
> - if (DT.isProtected())
> - addUInt(StaticMemberDIE, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
> - dwarf::DW_ACCESS_protected);
> - else if (DT.isPrivate())
> - addUInt(StaticMemberDIE, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
> - dwarf::DW_ACCESS_private);
> - else
> - addUInt(StaticMemberDIE, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
> - dwarf::DW_ACCESS_public);
> -
> - if (const ConstantInt *CI = dyn_cast_or_null<ConstantInt>(DT.getConstant()))
> - addConstantValue(StaticMemberDIE, CI, isUnsignedDIType(DD, Ty));
> - if (const ConstantFP *CFP = dyn_cast_or_null<ConstantFP>(DT.getConstant()))
> - addConstantFPValue(StaticMemberDIE, CFP);
> -
> - return StaticMemberDIE;
> -}
> -
> -void Unit::emitHeader(const MCSection *ASection, const MCSymbol *ASectionSym) {
> - Asm->OutStreamer.AddComment("DWARF version number");
> - Asm->EmitInt16(DD->getDwarfVersion());
> - Asm->OutStreamer.AddComment("Offset Into Abbrev. Section");
> - Asm->EmitSectionOffset(Asm->GetTempSymbol(ASection->getLabelBeginName()),
> - ASectionSym);
> - Asm->OutStreamer.AddComment("Address Size (in bytes)");
> - Asm->EmitInt8(Asm->getDataLayout().getPointerSize());
> -}
>
> Removed: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h?rev=196139&view=auto
> ==============================================================================
> --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h (original)
> +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h (removed)
> @@ -1,431 +0,0 @@
> -//===-- llvm/CodeGen/DwarfUnit.h - Dwarf Compile Unit ---*- C++ -*--===//
> -//
> -// The LLVM Compiler Infrastructure
> -//
> -// This file is distributed under the University of Illinois Open Source
> -// License. See LICENSE.TXT for details.
> -//
> -//===----------------------------------------------------------------------===//
> -//
> -// This file contains support for writing dwarf compile unit.
> -//
> -//===----------------------------------------------------------------------===//
> -
> -#ifndef CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H
> -#define CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H
> -
> -#include "DIE.h"
> -#include "DwarfDebug.h"
> -#include "llvm/ADT/DenseMap.h"
> -#include "llvm/ADT/Optional.h"
> -#include "llvm/ADT/OwningPtr.h"
> -#include "llvm/ADT/StringMap.h"
> -#include "llvm/DebugInfo.h"
> -#include "llvm/MC/MCExpr.h"
> -
> -namespace llvm {
> -
> -class MachineLocation;
> -class MachineOperand;
> -class ConstantInt;
> -class ConstantFP;
> -class DbgVariable;
> -
> -//===----------------------------------------------------------------------===//
> -/// Unit - This dwarf writer support class manages information associated
> -/// with a source file.
> -class Unit {
> -protected:
> - /// UniqueID - a numeric ID unique among all CUs in the module
> - unsigned UniqueID;
> -
> - /// Node - MDNode for the compile unit.
> - DICompileUnit Node;
> -
> - /// CUDie - Compile unit debug information entry.
> - const OwningPtr<DIE> CUDie;
> -
> - /// Offset of the CUDie from beginning of debug info section.
> - unsigned DebugInfoOffset;
> -
> - /// Asm - Target of Dwarf emission.
> - AsmPrinter *Asm;
> -
> - // Holders for some common dwarf information.
> - DwarfDebug *DD;
> - DwarfUnits *DU;
> -
> - /// IndexTyDie - An anonymous type for index type. Owned by CUDie.
> - DIE *IndexTyDie;
> -
> - /// MDNodeToDieMap - Tracks the mapping of unit level debug information
> - /// variables to debug information entries.
> - DenseMap<const MDNode *, DIE *> MDNodeToDieMap;
> -
> - /// MDNodeToDIEEntryMap - Tracks the mapping of unit level debug information
> - /// descriptors to debug information entries using a DIEEntry proxy.
> - DenseMap<const MDNode *, DIEEntry *> MDNodeToDIEEntryMap;
> -
> - /// GlobalNames - A map of globally visible named entities for this unit.
> - StringMap<const DIE *> GlobalNames;
> -
> - /// GlobalTypes - A map of globally visible types for this unit.
> - StringMap<const DIE *> GlobalTypes;
> -
> - /// AccelNames - A map of names for the name accelerator table.
> - StringMap<std::vector<const DIE *> > AccelNames;
> -
> - /// AccelObjC - A map of objc spec for the objc accelerator table.
> - StringMap<std::vector<const DIE *> > AccelObjC;
> -
> - /// AccelNamespace - A map of names for the namespace accelerator table.
> - StringMap<std::vector<const DIE *> > AccelNamespace;
> -
> - /// AccelTypes - A map of names for the type accelerator table.
> - StringMap<std::vector<std::pair<const DIE *, unsigned> > > AccelTypes;
> -
> - /// DIEBlocks - A list of all the DIEBlocks in use.
> - std::vector<DIEBlock *> DIEBlocks;
> -
> - /// ContainingTypeMap - This map is used to keep track of subprogram DIEs that
> - /// need DW_AT_containing_type attribute. This attribute points to a DIE that
> - /// corresponds to the MDNode mapped with the subprogram DIE.
> - DenseMap<DIE *, const MDNode *> ContainingTypeMap;
> -
> - // DIEValueAllocator - All DIEValues are allocated through this allocator.
> - BumpPtrAllocator DIEValueAllocator;
> -
> - // DIEIntegerOne - A preallocated DIEValue because 1 is used frequently.
> - DIEInteger *DIEIntegerOne;
> -
> - Unit(unsigned UID, DIE *D, DICompileUnit CU, AsmPrinter *A, DwarfDebug *DW,
> - DwarfUnits *DWU);
> -
> -public:
> - virtual ~Unit();
> -
> - // Accessors.
> - unsigned getUniqueID() const { return UniqueID; }
> - virtual uint16_t getLanguage() const = 0;
> - DICompileUnit getNode() const { return Node; }
> - DIE *getCUDie() const { return CUDie.get(); }
> - const StringMap<const DIE *> &getGlobalNames() const { return GlobalNames; }
> - const StringMap<const DIE *> &getGlobalTypes() const { return GlobalTypes; }
> -
> - const StringMap<std::vector<const DIE *> > &getAccelNames() const {
> - return AccelNames;
> - }
> - const StringMap<std::vector<const DIE *> > &getAccelObjC() const {
> - return AccelObjC;
> - }
> - const StringMap<std::vector<const DIE *> > &getAccelNamespace() const {
> - return AccelNamespace;
> - }
> - const StringMap<std::vector<std::pair<const DIE *, unsigned> > > &
> - getAccelTypes() const {
> - return AccelTypes;
> - }
> -
> - unsigned getDebugInfoOffset() const { return DebugInfoOffset; }
> - void setDebugInfoOffset(unsigned DbgInfoOff) { DebugInfoOffset = DbgInfoOff; }
> -
> - /// hasContent - Return true if this compile unit has something to write out.
> - bool hasContent() const { return !CUDie->getChildren().empty(); }
> -
> - /// getParentContextString - Get a string containing the language specific
> - /// context for a global name.
> - std::string getParentContextString(DIScope Context) const;
> -
> - /// addGlobalName - Add a new global entity to the compile unit.
> - ///
> - void addGlobalName(StringRef Name, DIE *Die, DIScope Context);
> -
> - /// addAccelName - Add a new name to the name accelerator table.
> - void addAccelName(StringRef Name, const DIE *Die);
> -
> - /// addAccelObjC - Add a new name to the ObjC accelerator table.
> - void addAccelObjC(StringRef Name, const DIE *Die);
> -
> - /// addAccelNamespace - Add a new name to the namespace accelerator table.
> - void addAccelNamespace(StringRef Name, const DIE *Die);
> -
> - /// addAccelType - Add a new type to the type accelerator table.
> - void addAccelType(StringRef Name, std::pair<const DIE *, unsigned> Die);
> -
> - /// getDIE - Returns the debug information entry map slot for the
> - /// specified debug variable. We delegate the request to DwarfDebug
> - /// when the MDNode can be part of the type system, since DIEs for
> - /// the type system can be shared across CUs and the mappings are
> - /// kept in DwarfDebug.
> - DIE *getDIE(DIDescriptor D) const;
> -
> - /// getDIEBlock - Returns a fresh newly allocated DIEBlock.
> - DIEBlock *getDIEBlock() { return new (DIEValueAllocator) DIEBlock(); }
> -
> - /// insertDIE - Insert DIE into the map. We delegate the request to DwarfDebug
> - /// when the MDNode can be part of the type system, since DIEs for
> - /// the type system can be shared across CUs and the mappings are
> - /// kept in DwarfDebug.
> - void insertDIE(DIDescriptor Desc, DIE *D);
> -
> - /// addDie - Adds or interns the DIE to the compile unit.
> - ///
> - void addDie(DIE *Buffer) { CUDie->addChild(Buffer); }
> -
> - /// addFlag - Add a flag that is true to the DIE.
> - void addFlag(DIE *Die, dwarf::Attribute Attribute);
> -
> - /// addUInt - Add an unsigned integer attribute data and value.
> - void addUInt(DIE *Die, dwarf::Attribute Attribute, Optional<dwarf::Form> Form,
> - uint64_t Integer);
> -
> - void addUInt(DIEBlock *Block, dwarf::Form Form, uint64_t Integer);
> -
> - /// addSInt - Add an signed integer attribute data and value.
> - void addSInt(DIE *Die, dwarf::Attribute Attribute, Optional<dwarf::Form> Form,
> - int64_t Integer);
> -
> - void addSInt(DIEBlock *Die, Optional<dwarf::Form> Form, int64_t Integer);
> -
> - /// addString - Add a string attribute data and value.
> - void addString(DIE *Die, dwarf::Attribute Attribute, const StringRef Str);
> -
> - /// addLocalString - Add a string attribute data and value.
> - void addLocalString(DIE *Die, dwarf::Attribute Attribute,
> - const StringRef Str);
> -
> - /// addExpr - Add a Dwarf expression attribute data and value.
> - void addExpr(DIEBlock *Die, dwarf::Form Form, const MCExpr *Expr);
> -
> - /// addLabel - Add a Dwarf label attribute data and value.
> - void addLabel(DIE *Die, dwarf::Attribute Attribute, dwarf::Form Form,
> - const MCSymbol *Label);
> -
> - void addLabel(DIEBlock *Die, dwarf::Form Form, const MCSymbol *Label);
> -
> - /// addSectionLabel - Add a Dwarf section label attribute data and value.
> - ///
> - void addSectionLabel(DIE *Die, dwarf::Attribute Attribute,
> - const MCSymbol *Label);
> -
> - /// addSectionOffset - Add an offset into a section attribute data and value.
> - ///
> - void addSectionOffset(DIE *Die, dwarf::Attribute Attribute, uint64_t Integer);
> -
> - /// addOpAddress - Add a dwarf op address data and value using the
> - /// form given and an op of either DW_FORM_addr or DW_FORM_GNU_addr_index.
> - void addOpAddress(DIEBlock *Die, const MCSymbol *Label);
> -
> - /// addSectionDelta - Add a label delta attribute data and value.
> - void addSectionDelta(DIE *Die, dwarf::Attribute Attribute, const MCSymbol *Hi,
> - const MCSymbol *Lo);
> -
> - /// addDIEEntry - Add a DIE attribute data and value.
> - void addDIEEntry(DIE *Die, dwarf::Attribute Attribute, DIE *Entry);
> -
> - /// addDIEEntry - Add a DIE attribute data and value.
> - void addDIEEntry(DIE *Die, dwarf::Attribute Attribute, DIEEntry *Entry);
> -
> - /// addBlock - Add block data.
> - void addBlock(DIE *Die, dwarf::Attribute Attribute, DIEBlock *Block);
> -
> - /// addSourceLine - Add location information to specified debug information
> - /// entry.
> - void addSourceLine(DIE *Die, DIVariable V);
> - void addSourceLine(DIE *Die, DIGlobalVariable G);
> - void addSourceLine(DIE *Die, DISubprogram SP);
> - void addSourceLine(DIE *Die, DIType Ty);
> - void addSourceLine(DIE *Die, DINameSpace NS);
> - void addSourceLine(DIE *Die, DIObjCProperty Ty);
> -
> - /// addAddress - Add an address attribute to a die based on the location
> - /// provided.
> - void addAddress(DIE *Die, dwarf::Attribute Attribute,
> - const MachineLocation &Location, bool Indirect = false);
> -
> - /// addConstantValue - Add constant value entry in variable DIE.
> - void addConstantValue(DIE *Die, const MachineOperand &MO, DIType Ty);
> - void addConstantValue(DIE *Die, const ConstantInt *CI, bool Unsigned);
> - void addConstantValue(DIE *Die, const APInt &Val, bool Unsigned);
> -
> - /// addConstantFPValue - Add constant value entry in variable DIE.
> - void addConstantFPValue(DIE *Die, const MachineOperand &MO);
> - void addConstantFPValue(DIE *Die, const ConstantFP *CFP);
> -
> - /// addTemplateParams - Add template parameters in buffer.
> - void addTemplateParams(DIE &Buffer, DIArray TParams);
> -
> - /// addRegisterOp - Add register operand.
> - void addRegisterOp(DIEBlock *TheDie, unsigned Reg);
> -
> - /// addRegisterOffset - Add register offset.
> - void addRegisterOffset(DIEBlock *TheDie, unsigned Reg, int64_t Offset);
> -
> - /// addComplexAddress - Start with the address based on the location provided,
> - /// and generate the DWARF information necessary to find the actual variable
> - /// (navigating the extra location information encoded in the type) based on
> - /// the starting location. Add the DWARF information to the die.
> - void addComplexAddress(const DbgVariable &DV, DIE *Die,
> - dwarf::Attribute Attribute,
> - const MachineLocation &Location);
> -
> - // FIXME: Should be reformulated in terms of addComplexAddress.
> - /// addBlockByrefAddress - Start with the address based on the location
> - /// provided, and generate the DWARF information necessary to find the
> - /// actual Block variable (navigating the Block struct) based on the
> - /// starting location. Add the DWARF information to the die. Obsolete,
> - /// please use addComplexAddress instead.
> - void addBlockByrefAddress(const DbgVariable &DV, DIE *Die,
> - dwarf::Attribute Attribute,
> - const MachineLocation &Location);
> -
> - /// addVariableAddress - Add DW_AT_location attribute for a
> - /// DbgVariable based on provided MachineLocation.
> - void addVariableAddress(const DbgVariable &DV, DIE *Die,
> - MachineLocation Location);
> -
> - /// addType - Add a new type attribute to the specified entity. This takes
> - /// and attribute parameter because DW_AT_friend attributes are also
> - /// type references.
> - void addType(DIE *Entity, DIType Ty,
> - dwarf::Attribute Attribute = dwarf::DW_AT_type);
> -
> - /// getOrCreateNameSpace - Create a DIE for DINameSpace.
> - DIE *getOrCreateNameSpace(DINameSpace NS);
> -
> - /// getOrCreateSubprogramDIE - Create new DIE using SP.
> - DIE *getOrCreateSubprogramDIE(DISubprogram SP);
> -
> - /// getOrCreateTypeDIE - Find existing DIE or create new DIE for the
> - /// given DIType.
> - DIE *getOrCreateTypeDIE(const MDNode *N);
> -
> - /// getOrCreateContextDIE - Get context owner's DIE.
> - DIE *createTypeDIE(DICompositeType Ty);
> -
> - /// getOrCreateContextDIE - Get context owner's DIE.
> - DIE *getOrCreateContextDIE(DIScope Context);
> -
> - /// constructContainingTypeDIEs - Construct DIEs for types that contain
> - /// vtables.
> - void constructContainingTypeDIEs();
> -
> - /// constructVariableDIE - Construct a DIE for the given DbgVariable.
> - DIE *constructVariableDIE(DbgVariable &DV, bool isScopeAbstract);
> -
> - /// Create a DIE with the given Tag, add the DIE to its parent, and
> - /// call insertDIE if MD is not null.
> - DIE *createAndAddDIE(unsigned Tag, DIE &Parent,
> - DIDescriptor N = DIDescriptor());
> -
> - /// Compute the size of a header for this unit, not including the initial
> - /// length field.
> - unsigned getHeaderSize() const {
> - return sizeof(int16_t) + // DWARF version number
> - sizeof(int32_t) + // Offset Into Abbrev. Section
> - sizeof(int8_t); // Pointer Size (in bytes)
> - }
> -
> - /// Emit the header for this unit, not including the initial length field.
> - void emitHeader(const MCSection *ASection, const MCSymbol *ASectionSym);
> -
> -protected:
> - /// getOrCreateStaticMemberDIE - Create new static data member DIE.
> - DIE *getOrCreateStaticMemberDIE(DIDerivedType DT);
> -
> -private:
> - /// constructTypeDIE - Construct basic type die from DIBasicType.
> - void constructTypeDIE(DIE &Buffer, DIBasicType BTy);
> -
> - /// constructTypeDIE - Construct derived type die from DIDerivedType.
> - void constructTypeDIE(DIE &Buffer, DIDerivedType DTy);
> -
> - /// constructTypeDIE - Construct type DIE from DICompositeType.
> - void constructTypeDIE(DIE &Buffer, DICompositeType CTy);
> -
> - /// constructSubrangeDIE - Construct subrange DIE from DISubrange.
> - void constructSubrangeDIE(DIE &Buffer, DISubrange SR, DIE *IndexTy);
> -
> - /// constructArrayTypeDIE - Construct array type DIE from DICompositeType.
> - void constructArrayTypeDIE(DIE &Buffer, DICompositeType CTy);
> -
> - /// constructEnumTypeDIE - Construct enum type DIE from DIEnumerator.
> - void constructEnumTypeDIE(DIE &Buffer, DICompositeType CTy);
> -
> - /// constructMemberDIE - Construct member DIE from DIDerivedType.
> - void constructMemberDIE(DIE &Buffer, DIDerivedType DT);
> -
> - /// constructTemplateTypeParameterDIE - Construct new DIE for the given
> - /// DITemplateTypeParameter.
> - void constructTemplateTypeParameterDIE(DIE &Buffer,
> - DITemplateTypeParameter TP);
> -
> - /// constructTemplateValueParameterDIE - Construct new DIE for the given
> - /// DITemplateValueParameter.
> - void constructTemplateValueParameterDIE(DIE &Buffer,
> - DITemplateValueParameter TVP);
> -
> - /// getLowerBoundDefault - Return the default lower bound for an array. If the
> - /// DWARF version doesn't handle the language, return -1.
> - int64_t getDefaultLowerBound() const;
> -
> - /// getDIEEntry - Returns the debug information entry for the specified
> - /// debug variable.
> - DIEEntry *getDIEEntry(const MDNode *N) const {
> - return MDNodeToDIEEntryMap.lookup(N);
> - }
> -
> - /// insertDIEEntry - Insert debug information entry into the map.
> - void insertDIEEntry(const MDNode *N, DIEEntry *E) {
> - MDNodeToDIEEntryMap.insert(std::make_pair(N, E));
> - }
> -
> - // getIndexTyDie - Get an anonymous type for index type.
> - DIE *getIndexTyDie() { return IndexTyDie; }
> -
> - // setIndexTyDie - Set D as anonymous type for index which can be reused
> - // later.
> - void setIndexTyDie(DIE *D) { IndexTyDie = D; }
> -
> - /// createDIEEntry - Creates a new DIEEntry to be a proxy for a debug
> - /// information entry.
> - DIEEntry *createDIEEntry(DIE *Entry);
> -
> - /// resolve - Look in the DwarfDebug map for the MDNode that
> - /// corresponds to the reference.
> - template <typename T> T resolve(DIRef<T> Ref) const {
> - return DD->resolve(Ref);
> - }
> -
> - /// If this is a named finished type then include it in the list of types for
> - /// the accelerator tables.
> - void updateAcceleratorTables(DIScope Context, DIType Ty, const DIE *TyDIE);
> -};
> -
> -class CompileUnit : public Unit {
> -public:
> - CompileUnit(unsigned UID, DIE *D, DICompileUnit Node, AsmPrinter *A,
> - DwarfDebug *DW, DwarfUnits *DWU);
> -
> - /// createGlobalVariableDIE - create global variable DIE.
> - void createGlobalVariableDIE(DIGlobalVariable GV);
> -
> - /// addLabelAddress - Add a dwarf label attribute data and value using
> - /// either DW_FORM_addr or DW_FORM_GNU_addr_index.
> - void addLabelAddress(DIE *Die, dwarf::Attribute Attribute, MCSymbol *Label);
> -
> - uint16_t getLanguage() const { return getNode().getLanguage(); }
> -};
> -
> -class TypeUnit : public Unit {
> -private:
> - uint16_t Language;
> -
> -public:
> - TypeUnit(unsigned UID, DIE *D, uint16_t Language, AsmPrinter *A,
> - DwarfDebug *DW, DwarfUnits *DWU);
> -
> - uint16_t getLanguage() const { return Language; }
> -};
> -} // end llvm namespace
> -#endif
>
> Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp?rev=196140&r1=196139&r2=196140&view=diff
> ==============================================================================
> --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp (original)
> +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp Mon Dec 2 13:33:15 2013
> @@ -16,7 +16,7 @@
> #include "DIE.h"
> #include "DIEHash.h"
> #include "DwarfAccelTable.h"
> -#include "DwarfCompileUnit.h"
> +#include "DwarfUnit.h"
> #include "llvm/ADT/STLExtras.h"
> #include "llvm/ADT/Statistic.h"
> #include "llvm/ADT/StringExtras.h"
>
> Copied: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.cpp (from r196139, llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp)
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.cpp?p2=llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.cpp&p1=llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp&r1=196139&r2=196140&rev=196140&view=diff
> ==============================================================================
> --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp (original)
> +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.cpp Mon Dec 2 13:33:15 2013
> @@ -13,7 +13,7 @@
>
> #define DEBUG_TYPE "dwarfdebug"
>
> -#include "DwarfCompileUnit.h"
> +#include "DwarfUnit.h"
> #include "DwarfAccelTable.h"
> #include "DwarfDebug.h"
> #include "llvm/ADT/APFloat.h"
>
> Copied: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.h (from r196139, llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h)
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.h?p2=llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.h&p1=llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h&r1=196139&r2=196140&rev=196140&view=diff
> ==============================================================================
> (empty)
>
>
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