1161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel//===-- llvm/CodeGen/DwarfCompileUnit.cpp - Dwarf Compile Unit ------------===// 2161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// 3161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// The LLVM Compiler Infrastructure 4161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// 5161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// This file is distributed under the University of Illinois Open Source 6161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// License. See LICENSE.TXT for details. 7161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// 8161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel//===----------------------------------------------------------------------===// 9161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// 10443c9ed7688e66c55c43819a75be681574b291deEric Christopher// This file contains support for constructing a dwarf compile unit. 11161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// 12161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel//===----------------------------------------------------------------------===// 13161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 14161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#define DEBUG_TYPE "dwarfdebug" 15161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 16c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher#include "DwarfAccelTable.h" 17161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "DwarfCompileUnit.h" 18161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "DwarfDebug.h" 19161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "llvm/Constants.h" 2016eeb6f5ebc978b03745177b9ac82684ab1c6932Bill Wendling#include "llvm/DIBuilder.h" 216f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel#include "llvm/GlobalVariable.h" 226f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel#include "llvm/Instructions.h" 23d61c34ba30888c49f4f223422f30b018a41594daEric Christopher#include "llvm/Support/Debug.h" 246f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel#include "llvm/Target/Mangler.h" 25161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "llvm/Target/TargetData.h" 26161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "llvm/Target/TargetFrameLowering.h" 27161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "llvm/Target/TargetMachine.h" 28161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "llvm/Target/TargetRegisterInfo.h" 29161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "llvm/ADT/APFloat.h" 30161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "llvm/Support/ErrorHandling.h" 31161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 32161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelusing namespace llvm; 33161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 34161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// CompileUnit - Compile unit constructor. 35438b092a4bba8d766316542ced10b7b028bad82cEric ChristopherCompileUnit::CompileUnit(unsigned I, unsigned L, DIE *D, AsmPrinter *A, 364d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher DwarfDebug *DW) 37438b092a4bba8d766316542ced10b7b028bad82cEric Christopher : ID(I), Language(L), CUDie(D), Asm(A), DD(DW), IndexTyDie(0) { 38161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEIntegerOne = new (DIEValueAllocator) DIEInteger(1); 39161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 40161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 41161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// ~CompileUnit - Destructor for compile unit. 42161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelCompileUnit::~CompileUnit() { 43161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned j = 0, M = DIEBlocks.size(); j < M; ++j) 44161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlocks[j]->~DIEBlock(); 45161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 46161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 47161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// createDIEEntry - Creates a new DIEEntry to be a proxy for a debug 48161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// information entry. 49161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelDIEEntry *CompileUnit::createDIEEntry(DIE *Entry) { 50161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEEntry *Value = new (DIEValueAllocator) DIEEntry(Entry); 51161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return Value; 52161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 53161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 54873cf0a0d7906083578d9b793008348750636138Eric Christopher/// addFlag - Add a flag that is true. 55873cf0a0d7906083578d9b793008348750636138Eric Christophervoid CompileUnit::addFlag(DIE *Die, unsigned Attribute) { 56873cf0a0d7906083578d9b793008348750636138Eric Christopher if (!DD->useDarwinGDBCompat()) 57873cf0a0d7906083578d9b793008348750636138Eric Christopher Die->addValue(Attribute, dwarf::DW_FORM_flag_present, 58873cf0a0d7906083578d9b793008348750636138Eric Christopher DIEIntegerOne); 59873cf0a0d7906083578d9b793008348750636138Eric Christopher else 60873cf0a0d7906083578d9b793008348750636138Eric Christopher addUInt(Die, Attribute, dwarf::DW_FORM_flag, 1); 61873cf0a0d7906083578d9b793008348750636138Eric Christopher} 62873cf0a0d7906083578d9b793008348750636138Eric Christopher 63161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addUInt - Add an unsigned integer attribute data and value. 64161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 65161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addUInt(DIE *Die, unsigned Attribute, 66161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Form, uint64_t Integer) { 67161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Form) Form = DIEInteger::BestForm(false, Integer); 68161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEValue *Value = Integer == 1 ? 69161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEIntegerOne : new (DIEValueAllocator) DIEInteger(Integer); 70161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Die->addValue(Attribute, Form, Value); 71161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 72161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 73161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addSInt - Add an signed integer attribute data and value. 74161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 75161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addSInt(DIE *Die, unsigned Attribute, 76161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Form, int64_t Integer) { 77161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Form) Form = DIEInteger::BestForm(true, Integer); 78161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEValue *Value = new (DIEValueAllocator) DIEInteger(Integer); 79161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Die->addValue(Attribute, Form, Value); 80161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 81161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 826a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky/// addString - Add a string attribute data and value. We always emit a 836a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky/// reference to the string pool instead of immediate strings so that DIEs have 846a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky/// more predictable sizes. 85390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewyckyvoid CompileUnit::addString(DIE *Die, unsigned Attribute, StringRef String) { 866a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky MCSymbol *Symb = DD->getStringPoolEntry(String); 876a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky DIEValue *Value; 886a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky if (Asm->needsRelocationsForDwarfStringPool()) 896a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky Value = new (DIEValueAllocator) DIELabel(Symb); 906a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky else { 916a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky MCSymbol *StringPool = DD->getStringPool(); 926a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky Value = new (DIEValueAllocator) DIEDelta(Symb, StringPool); 93390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky } 946a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky Die->addValue(Attribute, dwarf::DW_FORM_strp, Value); 95161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 96161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 97161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addLabel - Add a Dwarf label attribute data and value. 98161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 99161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addLabel(DIE *Die, unsigned Attribute, unsigned Form, 100161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const MCSymbol *Label) { 101161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEValue *Value = new (DIEValueAllocator) DIELabel(Label); 102161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Die->addValue(Attribute, Form, Value); 103161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 104161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 105161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addDelta - Add a label delta attribute data and value. 106161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 107161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addDelta(DIE *Die, unsigned Attribute, unsigned Form, 108161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const MCSymbol *Hi, const MCSymbol *Lo) { 109161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEValue *Value = new (DIEValueAllocator) DIEDelta(Hi, Lo); 110161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Die->addValue(Attribute, Form, Value); 111161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 112161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 113161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addDIEEntry - Add a DIE attribute data and value. 114161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 115161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addDIEEntry(DIE *Die, unsigned Attribute, unsigned Form, 116161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *Entry) { 117161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Die->addValue(Attribute, Form, createDIEEntry(Entry)); 118161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 119161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 120161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addBlock - Add block data. 121161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 122161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addBlock(DIE *Die, unsigned Attribute, unsigned Form, 123161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *Block) { 124161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Block->ComputeSize(Asm); 125161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlocks.push_back(Block); // Memoize so we can call the destructor later on. 126161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Die->addValue(Attribute, Block->BestForm(), Block); 127161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 128161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 129161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addSourceLine - Add location information to specified debug information 130161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// entry. 131161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addSourceLine(DIE *Die, DIVariable V) { 132161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Verify variable. 133161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!V.Verify()) 134161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 135161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 136161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Line = V.getLineNumber(); 137161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Line == 0) 138161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 139161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned FileID = DD->GetOrCreateSourceID(V.getContext().getFilename(), 140161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel V.getContext().getDirectory()); 141161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel assert(FileID && "Invalid file id"); 142161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_file, 0, FileID); 143161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_line, 0, Line); 144161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 145161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 146161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addSourceLine - Add location information to specified debug information 147161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// entry. 148161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addSourceLine(DIE *Die, DIGlobalVariable G) { 149161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Verify global variable. 150161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!G.Verify()) 151161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 152161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 153161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Line = G.getLineNumber(); 154161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Line == 0) 155161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 156746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky unsigned FileID = DD->GetOrCreateSourceID(G.getFilename(), G.getDirectory()); 157161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel assert(FileID && "Invalid file id"); 158161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_file, 0, FileID); 159161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_line, 0, Line); 160161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 161161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 162161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addSourceLine - Add location information to specified debug information 163161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// entry. 164161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addSourceLine(DIE *Die, DISubprogram SP) { 165161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Verify subprogram. 166161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!SP.Verify()) 167161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 168161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1692125d5a7e58eb21f34c2a21913d6f1074c63b5cdEric Christopher // If the line number is 0, don't add it. 170161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Line = SP.getLineNumber(); 1712125d5a7e58eb21f34c2a21913d6f1074c63b5cdEric Christopher if (Line == 0) 172161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 1732125d5a7e58eb21f34c2a21913d6f1074c63b5cdEric Christopher 174746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky unsigned FileID = DD->GetOrCreateSourceID(SP.getFilename(), 175746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky SP.getDirectory()); 176161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel assert(FileID && "Invalid file id"); 177161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_file, 0, FileID); 178161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_line, 0, Line); 179161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 180161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 181161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addSourceLine - Add location information to specified debug information 182161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// entry. 183161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addSourceLine(DIE *Die, DIType Ty) { 184161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Verify type. 185161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Ty.Verify()) 186161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 187161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 188161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Line = Ty.getLineNumber(); 1892125d5a7e58eb21f34c2a21913d6f1074c63b5cdEric Christopher if (Line == 0) 190161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 191746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky unsigned FileID = DD->GetOrCreateSourceID(Ty.getFilename(), 192746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky Ty.getDirectory()); 193161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel assert(FileID && "Invalid file id"); 194161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_file, 0, FileID); 195161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_line, 0, Line); 196161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 197161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 198161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addSourceLine - Add location information to specified debug information 199161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// entry. 200b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christophervoid CompileUnit::addSourceLine(DIE *Die, DIObjCProperty Ty) { 201b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher // Verify type. 202b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher if (!Ty.Verify()) 203b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher return; 204b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher 205b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher unsigned Line = Ty.getLineNumber(); 206b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher if (Line == 0) 207b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher return; 208b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher DIFile File = Ty.getFile(); 209b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher unsigned FileID = DD->GetOrCreateSourceID(File.getFilename(), 2104d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher File.getDirectory()); 211b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher assert(FileID && "Invalid file id"); 212b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher addUInt(Die, dwarf::DW_AT_decl_file, 0, FileID); 213b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher addUInt(Die, dwarf::DW_AT_decl_line, 0, Line); 214b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher} 215b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher 216b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher/// addSourceLine - Add location information to specified debug information 217b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher/// entry. 218161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addSourceLine(DIE *Die, DINameSpace NS) { 219161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Verify namespace. 220161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!NS.Verify()) 221161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 222161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 223161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Line = NS.getLineNumber(); 224161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Line == 0) 225161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 226161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef FN = NS.getFilename(); 227161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 228161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned FileID = DD->GetOrCreateSourceID(FN, NS.getDirectory()); 229161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel assert(FileID && "Invalid file id"); 230161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_file, 0, FileID); 231161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_line, 0, Line); 232161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 233161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 234e1cdf84ee5ca72a38f4dedd6b12cce21cf83e415Devang Patel/// addVariableAddress - Add DW_AT_location attribute for a 235e1cdf84ee5ca72a38f4dedd6b12cce21cf83e415Devang Patel/// DbgVariable based on provided MachineLocation. 236e1cdf84ee5ca72a38f4dedd6b12cce21cf83e415Devang Patelvoid CompileUnit::addVariableAddress(DbgVariable *&DV, DIE *Die, 237e1cdf84ee5ca72a38f4dedd6b12cce21cf83e415Devang Patel MachineLocation Location) { 238161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (DV->variableHasComplexAddress()) 239161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addComplexAddress(DV, Die, dwarf::DW_AT_location, Location); 240161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (DV->isBlockByrefVariable()) 241161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlockByrefAddress(DV, Die, dwarf::DW_AT_location, Location); 242161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else 243161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addAddress(Die, dwarf::DW_AT_location, Location); 244161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 245161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 246116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel/// addRegisterOp - Add register operand. 247116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patelvoid CompileUnit::addRegisterOp(DIE *TheDie, unsigned Reg) { 248116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo(); 249116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel unsigned DWReg = RI->getDwarfRegNum(Reg, false); 250116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel if (DWReg < 32) 251116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_reg0 + DWReg); 252116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel else { 253116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_regx); 254116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_udata, DWReg); 255116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel } 256116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel} 257116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel 258116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel/// addRegisterOffset - Add register offset. 259116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patelvoid CompileUnit::addRegisterOffset(DIE *TheDie, unsigned Reg, 260116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel int64_t Offset) { 261116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo(); 262116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel unsigned DWReg = RI->getDwarfRegNum(Reg, false); 263116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel const TargetRegisterInfo *TRI = Asm->TM.getRegisterInfo(); 264116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel if (Reg == TRI->getFrameRegister(*Asm->MF)) 265116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel // If variable offset is based in frame register then use fbreg. 266116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_fbreg); 267116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel else if (DWReg < 32) 268116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_breg0 + DWReg); 269116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel else { 270116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_bregx); 271116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_udata, DWReg); 272116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel } 273116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addSInt(TheDie, 0, dwarf::DW_FORM_sdata, Offset); 274116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel} 275116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel 276116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel/// addAddress - Add an address attribute to a die based on the location 277116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel/// provided. 278116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patelvoid CompileUnit::addAddress(DIE *Die, unsigned Attribute, 279116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel const MachineLocation &Location) { 280116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 281116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel 282116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel if (Location.isReg()) 283116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addRegisterOp(Block, Location.getReg()); 284116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel else 285116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addRegisterOffset(Block, Location.getReg(), Location.getOffset()); 286116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel 287116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel // Now attach the location information to the DIE. 288116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addBlock(Die, Attribute, 0, Block); 289116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel} 290116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel 291161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addComplexAddress - Start with the address based on the location provided, 292161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// and generate the DWARF information necessary to find the actual variable 293161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// given the extra address information encoded in the DIVariable, starting from 294161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// the starting location. Add the DWARF information to the die. 295161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 296161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addComplexAddress(DbgVariable *&DV, DIE *Die, 297161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Attribute, 298161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const MachineLocation &Location) { 299161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 300c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel unsigned N = DV->getNumAddrElements(); 301c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel unsigned i = 0; 302c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel if (Location.isReg()) { 303c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel if (N >= 2 && DV->getAddrElement(0) == DIBuilder::OpPlus) { 304c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel // If first address element is OpPlus then emit 305c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel // DW_OP_breg + Offset instead of DW_OP_reg + Offset. 306c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel addRegisterOffset(Block, Location.getReg(), DV->getAddrElement(1)); 307c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel i = 2; 308c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel } else 309c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel addRegisterOp(Block, Location.getReg()); 310c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel } 311116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel else 312116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addRegisterOffset(Block, Location.getReg(), Location.getOffset()); 313161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 314c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel for (;i < N; ++i) { 315161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t Element = DV->getAddrElement(i); 316161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Element == DIBuilder::OpPlus) { 317161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst); 318161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_udata, DV->getAddrElement(++i)); 319161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else if (Element == DIBuilder::OpDeref) { 320501207676c78fefcfc9eeeaa1e3dbe9ea857d33fEric Christopher if (!Location.isReg()) 321501207676c78fefcfc9eeeaa1e3dbe9ea857d33fEric Christopher addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_deref); 322161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else llvm_unreachable("unknown DIBuilder Opcode"); 323161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 324161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 325161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Now attach the location information to the DIE. 326161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(Die, Attribute, 0, Block); 327161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 328161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 329161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/* Byref variables, in Blocks, are declared by the programmer as "SomeType 330161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel VarName;", but the compiler creates a __Block_byref_x_VarName struct, and 331161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel gives the variable VarName either the struct, or a pointer to the struct, as 332161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel its type. This is necessary for various behind-the-scenes things the 333161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel compiler needs to do with by-reference variables in Blocks. 334161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 335161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel However, as far as the original *programmer* is concerned, the variable 336161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel should still have type 'SomeType', as originally declared. 337161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 338161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel The function getBlockByrefType dives into the __Block_byref_x_VarName 339161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel struct to find the original type of the variable, which is then assigned to 340161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel the variable's Debug Information Entry as its real type. So far, so good. 341161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel However now the debugger will expect the variable VarName to have the type 342161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel SomeType. So we need the location attribute for the variable to be an 343161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel expression that explains to the debugger how to navigate through the 344161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel pointers and struct to find the actual variable of type SomeType. 345161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 346161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel The following function does just that. We start by getting 347161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel the "normal" location for the variable. This will be the location 348161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel of either the struct __Block_byref_x_VarName or the pointer to the 349161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel struct __Block_byref_x_VarName. 350161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 351161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel The struct will look something like: 352161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 353161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel struct __Block_byref_x_VarName { 354161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ... <various fields> 355161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel struct __Block_byref_x_VarName *forwarding; 356161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ... <various other fields> 357161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel SomeType VarName; 358161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ... <maybe more fields> 359161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel }; 360161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 361161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel If we are given the struct directly (as our starting point) we 362161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel need to tell the debugger to: 363161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 364161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1). Add the offset of the forwarding field. 365161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 366161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 2). Follow that pointer to get the real __Block_byref_x_VarName 367161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel struct to use (the real one may have been copied onto the heap). 368161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 369161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 3). Add the offset for the field VarName, to find the actual variable. 370161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 371161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel If we started with a pointer to the struct, then we need to 372161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dereference that pointer first, before the other steps. 373161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Translating this into DWARF ops, we will need to append the following 374161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel to the current location description for the variable: 375161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 376161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DW_OP_deref -- optional, if we start with a pointer 377161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DW_OP_plus_uconst <forward_fld_offset> 378161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DW_OP_deref 379161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DW_OP_plus_uconst <varName_fld_offset> 380161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 381161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel That is what this function does. */ 382161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 383161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addBlockByrefAddress - Start with the address based on the location 384161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// provided, and generate the DWARF information necessary to find the 385161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// actual Block variable (navigating the Block struct) based on the 386161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// starting location. Add the DWARF information to the die. For 387161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// more information, read large comment just above here. 388161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 389161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addBlockByrefAddress(DbgVariable *&DV, DIE *Die, 390161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Attribute, 391161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const MachineLocation &Location) { 392161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIType Ty = DV->getType(); 393161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIType TmpTy = Ty; 394161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Tag = Ty.getTag(); 395161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel bool isPointer = false; 396161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 397161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef varName = DV->getName(); 398161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 399161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Tag == dwarf::DW_TAG_pointer_type) { 400161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDerivedType DTy = DIDerivedType(Ty); 401161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel TmpTy = DTy.getTypeDerivedFrom(); 402161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel isPointer = true; 403161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 404161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 405161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DICompositeType blockStruct = DICompositeType(TmpTy); 406161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 407161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Find the __forwarding field and the variable field in the __Block_byref 408161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // struct. 409161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIArray Fields = blockStruct.getTypeArray(); 410161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor varField = DIDescriptor(); 411161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor forwardingField = DIDescriptor(); 412161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 413161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned i = 0, N = Fields.getNumElements(); i < N; ++i) { 414161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Element = Fields.getElement(i); 415161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDerivedType DT = DIDerivedType(Element); 416161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef fieldName = DT.getName(); 417161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (fieldName == "__forwarding") 418161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel forwardingField = Element; 419161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (fieldName == varName) 420161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel varField = Element; 421161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 422161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 423161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get the offsets for the forwarding field and the variable field. 424161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned forwardingFieldOffset = 425161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDerivedType(forwardingField).getOffsetInBits() >> 3; 426161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned varFieldOffset = 427161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDerivedType(varField).getOffsetInBits() >> 3; 428161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 429161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Decode the original location, and use that as the start of the byref 430161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // variable's location. 431161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 432161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 433caba263c8e28474e3d6feb307af8fc4445645962Eric Christopher if (Location.isReg()) 434caba263c8e28474e3d6feb307af8fc4445645962Eric Christopher addRegisterOp(Block, Location.getReg()); 435caba263c8e28474e3d6feb307af8fc4445645962Eric Christopher else 436caba263c8e28474e3d6feb307af8fc4445645962Eric Christopher addRegisterOffset(Block, Location.getReg(), Location.getOffset()); 437161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 438161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // If we started with a pointer to the __Block_byref... struct, then 439161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // the first thing we need to do is dereference the pointer (DW_OP_deref). 440161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (isPointer) 441161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_deref); 442161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 443161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Next add the offset for the '__forwarding' field: 444161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // DW_OP_plus_uconst ForwardingFieldOffset. Note there's no point in 445161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // adding the offset if it's 0. 446161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (forwardingFieldOffset > 0) { 447161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst); 448161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_udata, forwardingFieldOffset); 449161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 450161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 451161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Now dereference the __forwarding field to get to the real __Block_byref 452161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // struct: DW_OP_deref. 453161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_deref); 454161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 455161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Now that we've got the real __Block_byref... struct, add the offset 456161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // for the variable's field to get to the location of the actual variable: 457161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // DW_OP_plus_uconst varFieldOffset. Again, don't add if it's 0. 458161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (varFieldOffset > 0) { 459161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst); 460161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_udata, varFieldOffset); 461161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 462161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 463161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Now attach the location information to the DIE. 464161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(Die, Attribute, 0, Block); 465161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 466161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 4674ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel/// isTypeSigned - Return true if the type is signed. 4684ec14b0dee433a4f134d832e326a20839b1f777eDevang Patelstatic bool isTypeSigned(DIType Ty, int *SizeInBits) { 4694ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel if (Ty.isDerivedType()) 4704ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel return isTypeSigned(DIDerivedType(Ty).getTypeDerivedFrom(), SizeInBits); 4714ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel if (Ty.isBasicType()) 4724ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel if (DIBasicType(Ty).getEncoding() == dwarf::DW_ATE_signed 4734ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel || DIBasicType(Ty).getEncoding() == dwarf::DW_ATE_signed_char) { 4744ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel *SizeInBits = Ty.getSizeInBits(); 4754ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel return true; 4764ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel } 4774ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel return false; 4784ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel} 4794ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel 480161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addConstantValue - Add constant value entry in variable DIE. 481b58128e2b2375173aafb07905bd53014d622e4baDevang Patelbool CompileUnit::addConstantValue(DIE *Die, const MachineOperand &MO, 482b58128e2b2375173aafb07905bd53014d622e4baDevang Patel DIType Ty) { 483746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky assert(MO.isImm() && "Invalid machine operand!"); 484161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 4854ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel int SizeInBits = -1; 4864ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel bool SignedConstant = isTypeSigned(Ty, &SizeInBits); 4874ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel unsigned Form = SignedConstant ? dwarf::DW_FORM_sdata : dwarf::DW_FORM_udata; 4884ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel switch (SizeInBits) { 4894ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel case 8: Form = dwarf::DW_FORM_data1; break; 4904ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel case 16: Form = dwarf::DW_FORM_data2; break; 4914ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel case 32: Form = dwarf::DW_FORM_data4; break; 4924ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel case 64: Form = dwarf::DW_FORM_data8; break; 493045c1d4e48e5e06ca05d04af340f7c487bc9975dDevang Patel default: break; 494045c1d4e48e5e06ca05d04af340f7c487bc9975dDevang Patel } 4954ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel SignedConstant ? addSInt(Block, 0, Form, MO.getImm()) 4964ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel : addUInt(Block, 0, Form, MO.getImm()); 49772f0d9cdefa3086715e1e2547a9843321690b4d9Devang Patel 498161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(Die, dwarf::DW_AT_const_value, 0, Block); 499161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return true; 500161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 501161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 502161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addConstantFPValue - Add constant value entry in variable DIE. 503161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelbool CompileUnit::addConstantFPValue(DIE *Die, const MachineOperand &MO) { 504390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky assert (MO.isFPImm() && "Invalid machine operand!"); 505161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 506161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel APFloat FPImm = MO.getFPImm()->getValueAPF(); 507161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 508161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get the raw data form of the floating point. 509161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const APInt FltVal = FPImm.bitcastToAPInt(); 510161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const char *FltPtr = (const char*)FltVal.getRawData(); 511161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 512161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel int NumBytes = FltVal.getBitWidth() / 8; // 8 bits per byte. 513161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel bool LittleEndian = Asm->getTargetData().isLittleEndian(); 514161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel int Incr = (LittleEndian ? 1 : -1); 515161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel int Start = (LittleEndian ? 0 : NumBytes - 1); 516161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel int Stop = (LittleEndian ? NumBytes : -1); 517161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 518161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Output the constant to DWARF one byte at a time. 519161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (; Start != Stop; Start += Incr) 520161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, 521161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel (unsigned char)0xFF & FltPtr[Start]); 522161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 523161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(Die, dwarf::DW_AT_const_value, 0, Block); 524161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return true; 525161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 526161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 527161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addConstantValue - Add constant value entry in variable DIE. 5288594d429e02c688d428036f8563f09572da3fbffDevang Patelbool CompileUnit::addConstantValue(DIE *Die, const ConstantInt *CI, 529161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel bool Unsigned) { 530d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel unsigned CIBitWidth = CI->getBitWidth(); 531d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel if (CIBitWidth <= 64) { 532d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel unsigned form = 0; 533d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel switch (CIBitWidth) { 534d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel case 8: form = dwarf::DW_FORM_data1; break; 535d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel case 16: form = dwarf::DW_FORM_data2; break; 536d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel case 32: form = dwarf::DW_FORM_data4; break; 537d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel case 64: form = dwarf::DW_FORM_data8; break; 538d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel default: 539d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel form = Unsigned ? dwarf::DW_FORM_udata : dwarf::DW_FORM_sdata; 540d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel } 541161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Unsigned) 542d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel addUInt(Die, dwarf::DW_AT_const_value, form, CI->getZExtValue()); 543161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else 544d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel addSInt(Die, dwarf::DW_AT_const_value, form, CI->getSExtValue()); 545161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return true; 546161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 547161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 548161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 549161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 550161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get the raw data form of the large APInt. 551161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const APInt Val = CI->getValue(); 552c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi const uint64_t *Ptr64 = Val.getRawData(); 553161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 554161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel int NumBytes = Val.getBitWidth() / 8; // 8 bits per byte. 555161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel bool LittleEndian = Asm->getTargetData().isLittleEndian(); 556161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 557161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Output the constant to DWARF one byte at a time. 558c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi for (int i = 0; i < NumBytes; i++) { 559c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi uint8_t c; 560c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi if (LittleEndian) 561c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi c = Ptr64[i / 8] >> (8 * (i & 7)); 562c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi else 563c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi c = Ptr64[(NumBytes - 1 - i) / 8] >> (8 * ((NumBytes - 1 - i) & 7)); 564c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi addUInt(Block, 0, dwarf::DW_FORM_data1, c); 565c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi } 566161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 567161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(Die, dwarf::DW_AT_const_value, 0, Block); 568161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return true; 569161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 570161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 571161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addTemplateParams - Add template parameters in buffer. 572161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addTemplateParams(DIE &Buffer, DIArray TParams) { 573161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add template parameters. 574161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned i = 0, e = TParams.getNumElements(); i != e; ++i) { 575161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Element = TParams.getElement(i); 576161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Element.isTemplateTypeParameter()) 577161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(getOrCreateTemplateTypeParameterDIE( 578161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DITemplateTypeParameter(Element))); 579161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (Element.isTemplateValueParameter()) 580161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(getOrCreateTemplateValueParameterDIE( 581161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DITemplateValueParameter(Element))); 582161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 583161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 584746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky 585161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addToContextOwner - Add Die into the list of its context owner's children. 586161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addToContextOwner(DIE *Die, DIDescriptor Context) { 587161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Context.isType()) { 588161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *ContextDIE = getOrCreateTypeDIE(DIType(Context)); 589161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ContextDIE->addChild(Die); 590161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else if (Context.isNameSpace()) { 591161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *ContextDIE = getOrCreateNameSpace(DINameSpace(Context)); 592161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ContextDIE->addChild(Die); 593161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else if (Context.isSubprogram()) { 594dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIE *ContextDIE = getOrCreateSubprogramDIE(DISubprogram(Context)); 595161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ContextDIE->addChild(Die); 596161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else if (DIE *ContextDIE = getDIE(Context)) 597161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ContextDIE->addChild(Die); 598161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else 599161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addDie(Die); 600161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 601161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 602161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// getOrCreateTypeDIE - Find existing DIE or create new DIE for the 603161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// given DIType. 60494c7ddb6f52a5200983fed0ce74dc602a7737879Devang PatelDIE *CompileUnit::getOrCreateTypeDIE(const MDNode *TyNode) { 60594c7ddb6f52a5200983fed0ce74dc602a7737879Devang Patel DIType Ty(TyNode); 60694c7ddb6f52a5200983fed0ce74dc602a7737879Devang Patel if (!Ty.Verify()) 60794c7ddb6f52a5200983fed0ce74dc602a7737879Devang Patel return NULL; 608161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *TyDIE = getDIE(Ty); 609161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (TyDIE) 610161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return TyDIE; 611161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 612161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Create new type. 613161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel TyDIE = new DIE(dwarf::DW_TAG_base_type); 614161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel insertDIE(Ty, TyDIE); 615161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Ty.isBasicType()) 616161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel constructTypeDIE(*TyDIE, DIBasicType(Ty)); 617161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (Ty.isCompositeType()) 618161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel constructTypeDIE(*TyDIE, DICompositeType(Ty)); 619161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else { 620161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel assert(Ty.isDerivedType() && "Unknown kind of DIType"); 621161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel constructTypeDIE(*TyDIE, DIDerivedType(Ty)); 622161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 6231b3f9198ab3880be34b6252423b9e388b5cd6a5eEric Christopher // If this is a named finished type then include it in the list of types 6241b3f9198ab3880be34b6252423b9e388b5cd6a5eEric Christopher // for the accelerator tables. 625c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher if (!Ty.getName().empty() && !Ty.isForwardDecl()) { 626c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher bool IsImplementation = 0; 627c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher if (Ty.isCompositeType()) { 628c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher DICompositeType CT(Ty); 629e016789b7380b2a452f81ce15c2e382e62ede120Eric Christopher // A runtime language of 0 actually means C/C++ and that any 630e016789b7380b2a452f81ce15c2e382e62ede120Eric Christopher // non-negative value is some version of Objective-C/C++. 631c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher IsImplementation = (CT.getRunTimeLang() == 0) || 632e2dc9336d15ad3ca4f38d296d17f6682829b80b4Eric Christopher CT.isObjcClassComplete(); 633c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher } 634e016789b7380b2a452f81ce15c2e382e62ede120Eric Christopher unsigned Flags = IsImplementation ? 635e016789b7380b2a452f81ce15c2e382e62ede120Eric Christopher DwarfAccelTable::eTypeFlagClassIsImplementation : 0; 636e016789b7380b2a452f81ce15c2e382e62ede120Eric Christopher addAccelType(Ty.getName(), std::make_pair(TyDIE, Flags)); 637c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher } 6381b3f9198ab3880be34b6252423b9e388b5cd6a5eEric Christopher 639161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addToContextOwner(TyDIE, Ty.getContext()); 640161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return TyDIE; 641161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 642161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 643161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addType - Add a new type attribute to the specified entity. 6444d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christophervoid CompileUnit::addType(DIE *Entity, DIType Ty, unsigned Attribute) { 645161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Ty.Verify()) 646161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 647161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 648161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Check for pre-existence. 649161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEEntry *Entry = getDIEEntry(Ty); 650161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // If it exists then use the existing value. 651161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Entry) { 652663e0cf73dcf2bfbbfc22b49c739d54916652d1cEric Christopher Entity->addValue(Attribute, dwarf::DW_FORM_ref4, Entry); 653161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 654161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 655161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 656161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Construct type. 657161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *Buffer = getOrCreateTypeDIE(Ty); 658161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 659161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Set up proxy. 660161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Entry = createDIEEntry(Buffer); 661161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel insertDIEEntry(Ty, Entry); 662663e0cf73dcf2bfbbfc22b49c739d54916652d1cEric Christopher Entity->addValue(Attribute, dwarf::DW_FORM_ref4, Entry); 663e9ae06ca987b6c3b6cfbcd50ab85386565a4e0caDevang Patel 664e9ae06ca987b6c3b6cfbcd50ab85386565a4e0caDevang Patel // If this is a complete composite type then include it in the 665e9ae06ca987b6c3b6cfbcd50ab85386565a4e0caDevang Patel // list of global types. 666c20bdf194ad4c824ee6a5f163410d73513ae5c81Devang Patel addGlobalType(Ty); 66766658e4dff51664a53c56dd729b8abe4d57aadefDevang Patel} 66866658e4dff51664a53c56dd729b8abe4d57aadefDevang Patel 66966658e4dff51664a53c56dd729b8abe4d57aadefDevang Patel/// addGlobalType - Add a new global type to the compile unit. 67066658e4dff51664a53c56dd729b8abe4d57aadefDevang Patel/// 671c20bdf194ad4c824ee6a5f163410d73513ae5c81Devang Patelvoid CompileUnit::addGlobalType(DIType Ty) { 672e9ae06ca987b6c3b6cfbcd50ab85386565a4e0caDevang Patel DIDescriptor Context = Ty.getContext(); 673e9ae06ca987b6c3b6cfbcd50ab85386565a4e0caDevang Patel if (Ty.isCompositeType() && !Ty.getName().empty() && !Ty.isForwardDecl() 67494c7ddb6f52a5200983fed0ce74dc602a7737879Devang Patel && (!Context || Context.isCompileUnit() || Context.isFile() 67594c7ddb6f52a5200983fed0ce74dc602a7737879Devang Patel || Context.isNameSpace())) 676c20bdf194ad4c824ee6a5f163410d73513ae5c81Devang Patel if (DIEEntry *Entry = getDIEEntry(Ty)) 677c20bdf194ad4c824ee6a5f163410d73513ae5c81Devang Patel GlobalTypes[Ty.getName()] = Entry->getEntry(); 678161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 679161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 68031c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel/// addPubTypes - Add type for pubtypes section. 68131c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patelvoid CompileUnit::addPubTypes(DISubprogram SP) { 68231c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel DICompositeType SPTy = SP.getType(); 68331c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel unsigned SPTag = SPTy.getTag(); 68431c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel if (SPTag != dwarf::DW_TAG_subroutine_type) 68531c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel return; 68631c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel 68731c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel DIArray Args = SPTy.getTypeArray(); 68831c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel for (unsigned i = 0, e = Args.getNumElements(); i != e; ++i) { 68931c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel DIType ATy(Args.getElement(i)); 69031c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel if (!ATy.Verify()) 69131c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel continue; 692c20bdf194ad4c824ee6a5f163410d73513ae5c81Devang Patel addGlobalType(ATy); 69331c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel } 69431c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel} 69531c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel 696161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// constructTypeDIE - Construct basic type die from DIBasicType. 697161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::constructTypeDIE(DIE &Buffer, DIBasicType BTy) { 698161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get core information. 699161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef Name = BTy.getName(); 700161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add name if not anonymous or intermediate type. 701161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Name.empty()) 702390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(&Buffer, dwarf::DW_AT_name, Name); 703734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel 704734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel if (BTy.getTag() == dwarf::DW_TAG_unspecified_type) { 705734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel Buffer.setTag(dwarf::DW_TAG_unspecified_type); 706734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel // Unspecified types has only name, nothing else. 707734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel return; 708734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel } 709734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel 710734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel Buffer.setTag(dwarf::DW_TAG_base_type); 711746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky addUInt(&Buffer, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, 71230d409ca097e35c51964c9dac642804e5e495906Devang Patel BTy.getEncoding()); 713734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel 714161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t Size = BTy.getSizeInBits() >> 3; 715161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(&Buffer, dwarf::DW_AT_byte_size, 0, Size); 716161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 717161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 718161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// constructTypeDIE - Construct derived type die from DIDerivedType. 719161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::constructTypeDIE(DIE &Buffer, DIDerivedType DTy) { 720161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get core information. 721161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef Name = DTy.getName(); 722161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t Size = DTy.getSizeInBits() >> 3; 723161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Tag = DTy.getTag(); 724161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 725161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // FIXME - Workaround for templates. 726161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Tag == dwarf::DW_TAG_inheritance) Tag = dwarf::DW_TAG_reference_type; 727161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 728161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.setTag(Tag); 729161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 730161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Map to main type, void will not have a type. 731161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIType FromTy = DTy.getTypeDerivedFrom(); 732161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(&Buffer, FromTy); 733161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 734161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add name if not anonymous or intermediate type. 735161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Name.empty()) 736390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(&Buffer, dwarf::DW_AT_name, Name); 737161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 738161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add size if non-zero (derived types might be zero-sized.) 73935f225aa2c04ca2420161cca812cb3eb611bde51Eric Christopher if (Size && Tag != dwarf::DW_TAG_pointer_type) 740161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(&Buffer, dwarf::DW_AT_byte_size, 0, Size); 741161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 742161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add source line info if available and TyDesc is not a forward declaration. 743161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!DTy.isForwardDecl()) 744161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addSourceLine(&Buffer, DTy); 745161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 746161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 747161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// constructTypeDIE - Construct type DIE from DICompositeType. 748161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) { 749161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get core information. 750161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef Name = CTy.getName(); 751161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 752161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t Size = CTy.getSizeInBits() >> 3; 753161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Tag = CTy.getTag(); 754161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.setTag(Tag); 755161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 756161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel switch (Tag) { 757161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_vector_type: 758161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_array_type: 759161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel constructArrayTypeDIE(Buffer, &CTy); 760161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel break; 761161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_enumeration_type: { 762161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIArray Elements = CTy.getTypeArray(); 763161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 764161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add enumerators to enumeration type. 765161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) { 766161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *ElemDie = NULL; 767161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Enum(Elements.getElement(i)); 768161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Enum.isEnumerator()) { 769161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ElemDie = constructEnumTypeDIE(DIEnumerator(Enum)); 770161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(ElemDie); 771161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 772161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 773bb0f6eac1f2d04e485607f0726c31a84ce9b8cedEric Christopher DIType DTy = CTy.getTypeDerivedFrom(); 774bb0f6eac1f2d04e485607f0726c31a84ce9b8cedEric Christopher if (DTy.Verify()) { 775bb0f6eac1f2d04e485607f0726c31a84ce9b8cedEric Christopher addType(&Buffer, DTy); 776bb0f6eac1f2d04e485607f0726c31a84ce9b8cedEric Christopher addUInt(&Buffer, dwarf::DW_AT_enum_class, dwarf::DW_FORM_flag, 1); 777bb0f6eac1f2d04e485607f0726c31a84ce9b8cedEric Christopher } 778161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 779161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel break; 780161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_subroutine_type: { 781161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add return type. 782161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIArray Elements = CTy.getTypeArray(); 783161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor RTy = Elements.getElement(0); 784161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(&Buffer, DIType(RTy)); 785161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 786161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel bool isPrototyped = true; 787161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add arguments. 788161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned i = 1, N = Elements.getNumElements(); i < N; ++i) { 789161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Ty = Elements.getElement(i); 790161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Ty.isUnspecifiedParameter()) { 791161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *Arg = new DIE(dwarf::DW_TAG_unspecified_parameters); 792161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(Arg); 793161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel isPrototyped = false; 794161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else { 795161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *Arg = new DIE(dwarf::DW_TAG_formal_parameter); 796161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(Arg, DIType(Ty)); 797161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(Arg); 798161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 799161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 8008b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher // Add prototype flag if we're dealing with a C language and the 8018b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher // function has been prototyped. 8028b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher if (isPrototyped && 8034d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher (Language == dwarf::DW_LANG_C89 || 8044d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher Language == dwarf::DW_LANG_C99 || 8054d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher Language == dwarf::DW_LANG_ObjC)) 806873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(&Buffer, dwarf::DW_AT_prototyped); 807161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 808161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel break; 809161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_structure_type: 810161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_union_type: 811161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_class_type: { 812161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add elements to structure type. 813161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIArray Elements = CTy.getTypeArray(); 814161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 815161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // A forward struct declared type may not have elements available. 816161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned N = Elements.getNumElements(); 817161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (N == 0) 818161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel break; 819161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 820161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add elements to structure type. 821161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned i = 0; i < N; ++i) { 822161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Element = Elements.getElement(i); 823161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *ElemDie = NULL; 824161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Element.isSubprogram()) { 825161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DISubprogram SP(Element); 826dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel ElemDie = getOrCreateSubprogramDIE(DISubprogram(Element)); 827161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (SP.isProtected()) 82813aaca5edf538f967c16b8bdbfe293e2f9d75fc1Nick Lewycky addUInt(ElemDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1, 829161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ACCESS_protected); 830161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (SP.isPrivate()) 83113aaca5edf538f967c16b8bdbfe293e2f9d75fc1Nick Lewycky addUInt(ElemDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1, 832161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ACCESS_private); 833161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else 83413aaca5edf538f967c16b8bdbfe293e2f9d75fc1Nick Lewycky addUInt(ElemDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1, 835161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ACCESS_public); 836161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (SP.isExplicit()) 837873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(ElemDie, dwarf::DW_AT_explicit); 838161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 839161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (Element.isVariable()) { 840161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIVariable DV(Element); 841161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ElemDie = new DIE(dwarf::DW_TAG_variable); 842390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(ElemDie, dwarf::DW_AT_name, DV.getName()); 843161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(ElemDie, DV.getType()); 844873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(ElemDie, dwarf::DW_AT_declaration); 845873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(ElemDie, dwarf::DW_AT_external); 846161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addSourceLine(ElemDie, DV); 847663e0cf73dcf2bfbbfc22b49c739d54916652d1cEric Christopher } else if (Element.isDerivedType()) { 8484d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher DIDerivedType DDTy(Element); 8494d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher if (DDTy.getTag() == dwarf::DW_TAG_friend) { 8504d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher ElemDie = new DIE(dwarf::DW_TAG_friend); 8514d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher addType(ElemDie, DDTy.getTypeDerivedFrom(), dwarf::DW_AT_friend); 8524d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher } else 8534d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher ElemDie = createMemberDIE(DIDerivedType(Element)); 854663e0cf73dcf2bfbbfc22b49c739d54916652d1cEric Christopher } else if (Element.isObjCProperty()) { 85530d409ca097e35c51964c9dac642804e5e495906Devang Patel DIObjCProperty Property(Element); 85630d409ca097e35c51964c9dac642804e5e495906Devang Patel ElemDie = new DIE(Property.getTag()); 85730d409ca097e35c51964c9dac642804e5e495906Devang Patel StringRef PropertyName = Property.getObjCPropertyName(); 85830d409ca097e35c51964c9dac642804e5e495906Devang Patel addString(ElemDie, dwarf::DW_AT_APPLE_property_name, PropertyName); 8594d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher addType(ElemDie, Property.getType()); 8604d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher addSourceLine(ElemDie, Property); 86130d409ca097e35c51964c9dac642804e5e495906Devang Patel StringRef GetterName = Property.getObjCPropertyGetterName(); 86230d409ca097e35c51964c9dac642804e5e495906Devang Patel if (!GetterName.empty()) 86330d409ca097e35c51964c9dac642804e5e495906Devang Patel addString(ElemDie, dwarf::DW_AT_APPLE_property_getter, GetterName); 86430d409ca097e35c51964c9dac642804e5e495906Devang Patel StringRef SetterName = Property.getObjCPropertySetterName(); 86530d409ca097e35c51964c9dac642804e5e495906Devang Patel if (!SetterName.empty()) 86630d409ca097e35c51964c9dac642804e5e495906Devang Patel addString(ElemDie, dwarf::DW_AT_APPLE_property_setter, SetterName); 86730d409ca097e35c51964c9dac642804e5e495906Devang Patel unsigned PropertyAttributes = 0; 8689e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (Property.isReadOnlyObjCProperty()) 8699e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readonly; 8709e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (Property.isReadWriteObjCProperty()) 8719e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readwrite; 8729e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (Property.isAssignObjCProperty()) 8739e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_assign; 8749e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (Property.isRetainObjCProperty()) 8759e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_retain; 8769e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (Property.isCopyObjCProperty()) 8779e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_copy; 8789e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (Property.isNonAtomicObjCProperty()) 8799e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_nonatomic; 8809e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (PropertyAttributes) 8819e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel addUInt(ElemDie, dwarf::DW_AT_APPLE_property_attribute, 0, 8829e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes); 8836588abf377b7381274236e651462ec83052f6013Devang Patel 88430d409ca097e35c51964c9dac642804e5e495906Devang Patel DIEEntry *Entry = getDIEEntry(Element); 88530d409ca097e35c51964c9dac642804e5e495906Devang Patel if (!Entry) { 88630d409ca097e35c51964c9dac642804e5e495906Devang Patel Entry = createDIEEntry(ElemDie); 88730d409ca097e35c51964c9dac642804e5e495906Devang Patel insertDIEEntry(Element, Entry); 88830d409ca097e35c51964c9dac642804e5e495906Devang Patel } 8899e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel } else 890161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel continue; 891161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(ElemDie); 892161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 893161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 894161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (CTy.isAppleBlockExtension()) 895873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(&Buffer, dwarf::DW_AT_APPLE_block); 896161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 897161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DICompositeType ContainingType = CTy.getContainingType(); 898161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (DIDescriptor(ContainingType).isCompositeType()) 899161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addDIEEntry(&Buffer, dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4, 900161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel getOrCreateTypeDIE(DIType(ContainingType))); 901161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else { 902161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Context = CTy.getContext(); 903161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addToContextOwner(&Buffer, Context); 904161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 905161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 906201e6cdc39d5dca4e70cdd331f6f5055b3af3534Devang Patel if (CTy.isObjcClassComplete()) 907873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(&Buffer, dwarf::DW_AT_APPLE_objc_complete_type); 908b11f80e94b590c90d07254dfa2406cf504e09cd3Devang Patel 9091a8e8869cafa16d94afcb6f73bc3e0f2f72f70f1Eric Christopher // Add template parameters to a class, structure or union types. 9101a8e8869cafa16d94afcb6f73bc3e0f2f72f70f1Eric Christopher // FIXME: The support isn't in the metadata for this yet. 9111a8e8869cafa16d94afcb6f73bc3e0f2f72f70f1Eric Christopher if (Tag == dwarf::DW_TAG_class_type || 9121a8e8869cafa16d94afcb6f73bc3e0f2f72f70f1Eric Christopher Tag == dwarf::DW_TAG_structure_type || 9131a8e8869cafa16d94afcb6f73bc3e0f2f72f70f1Eric Christopher Tag == dwarf::DW_TAG_union_type) 914161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addTemplateParams(Buffer, CTy.getTemplateParams()); 915161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 916161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel break; 917161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 918161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel default: 919161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel break; 920161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 921161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 922161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add name if not anonymous or intermediate type. 923161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Name.empty()) 924390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(&Buffer, dwarf::DW_AT_name, Name); 925161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 9264a5d839dfa07fd6a187581b00c1a09ece30d9a08Eric Christopher if (Tag == dwarf::DW_TAG_enumeration_type || 9274a5d839dfa07fd6a187581b00c1a09ece30d9a08Eric Christopher Tag == dwarf::DW_TAG_class_type || 9284a5d839dfa07fd6a187581b00c1a09ece30d9a08Eric Christopher Tag == dwarf::DW_TAG_structure_type || 9294a5d839dfa07fd6a187581b00c1a09ece30d9a08Eric Christopher Tag == dwarf::DW_TAG_union_type) { 930161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add size if non-zero (derived types might be zero-sized.) 931fc4199bf4add3422ce6470ca47bbe6bff2d70ea5Eric Christopher // TODO: Do we care about size for enum forward declarations? 932161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Size) 933161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(&Buffer, dwarf::DW_AT_byte_size, 0, Size); 934fc4199bf4add3422ce6470ca47bbe6bff2d70ea5Eric Christopher else if (!CTy.isForwardDecl()) 935161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add zero size if it is not a forward declaration. 936fc4199bf4add3422ce6470ca47bbe6bff2d70ea5Eric Christopher addUInt(&Buffer, dwarf::DW_AT_byte_size, 0, 0); 937fc4199bf4add3422ce6470ca47bbe6bff2d70ea5Eric Christopher 938fc4199bf4add3422ce6470ca47bbe6bff2d70ea5Eric Christopher // If we're a forward decl, say so. 939fc4199bf4add3422ce6470ca47bbe6bff2d70ea5Eric Christopher if (CTy.isForwardDecl()) 940873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(&Buffer, dwarf::DW_AT_declaration); 941161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 942161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add source line info if available. 943161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!CTy.isForwardDecl()) 944161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addSourceLine(&Buffer, CTy); 9458938895a8338e6084eb12a2bb4bf044928436173Eric Christopher 9468938895a8338e6084eb12a2bb4bf044928436173Eric Christopher // No harm in adding the runtime language to the declaration. 9478938895a8338e6084eb12a2bb4bf044928436173Eric Christopher unsigned RLang = CTy.getRunTimeLang(); 9488938895a8338e6084eb12a2bb4bf044928436173Eric Christopher if (RLang) 9498938895a8338e6084eb12a2bb4bf044928436173Eric Christopher addUInt(&Buffer, dwarf::DW_AT_APPLE_runtime_class, 9508938895a8338e6084eb12a2bb4bf044928436173Eric Christopher dwarf::DW_FORM_data1, RLang); 951161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 952161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 953161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 954161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// getOrCreateTemplateTypeParameterDIE - Find existing DIE or create new DIE 955161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// for the given DITemplateTypeParameter. 956161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelDIE * 957161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelCompileUnit::getOrCreateTemplateTypeParameterDIE(DITemplateTypeParameter TP) { 958161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *ParamDIE = getDIE(TP); 959161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (ParamDIE) 960161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return ParamDIE; 961161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 962161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ParamDIE = new DIE(dwarf::DW_TAG_template_type_parameter); 963161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(ParamDIE, TP.getType()); 964390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(ParamDIE, dwarf::DW_AT_name, TP.getName()); 965161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return ParamDIE; 966161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 967161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 968161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// getOrCreateTemplateValueParameterDIE - Find existing DIE or create new DIE 969161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// for the given DITemplateValueParameter. 970161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelDIE * 9714d069bf8ec726570d668e59fda993a33dfb7cb0bEric ChristopherCompileUnit::getOrCreateTemplateValueParameterDIE(DITemplateValueParameter TPV){ 972161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *ParamDIE = getDIE(TPV); 973161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (ParamDIE) 974161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return ParamDIE; 975161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 976161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ParamDIE = new DIE(dwarf::DW_TAG_template_value_parameter); 977161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(ParamDIE, TPV.getType()); 978161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!TPV.getName().empty()) 979390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(ParamDIE, dwarf::DW_AT_name, TPV.getName()); 980161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(ParamDIE, dwarf::DW_AT_const_value, dwarf::DW_FORM_udata, 981161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel TPV.getValue()); 982161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return ParamDIE; 983161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 984161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 98531c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel/// getOrCreateNameSpace - Create a DIE for DINameSpace. 98631c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang PatelDIE *CompileUnit::getOrCreateNameSpace(DINameSpace NS) { 98731c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel DIE *NDie = getDIE(NS); 98831c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel if (NDie) 98931c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel return NDie; 99031c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel NDie = new DIE(dwarf::DW_TAG_namespace); 99131c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel insertDIE(NS, NDie); 99209ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher if (!NS.getName().empty()) { 993390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(NDie, dwarf::DW_AT_name, NS.getName()); 99409ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher addAccelNamespace(NS.getName(), NDie); 99509ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher } else 99609ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher addAccelNamespace("(anonymous namespace)", NDie); 99731c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel addSourceLine(NDie, NS); 99831c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel addToContextOwner(NDie, NS.getContext()); 99931c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel return NDie; 100031c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel} 100131c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel 1002dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel/// getRealLinkageName - If special LLVM prefix that is used to inform the asm 1003dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel/// printer to not emit usual symbol prefix before the symbol name is used then 1004dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel/// return linkage name after skipping this special LLVM prefix. 1005dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patelstatic StringRef getRealLinkageName(StringRef LinkageName) { 1006dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel char One = '\1'; 1007dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (LinkageName.startswith(StringRef(&One, 1))) 1008dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel return LinkageName.substr(1); 1009dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel return LinkageName; 1010dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel} 1011dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1012dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel/// getOrCreateSubprogramDIE - Create new DIE using SP. 1013dbc64af76d769596903485668a1dfc2d6640c4fbDevang PatelDIE *CompileUnit::getOrCreateSubprogramDIE(DISubprogram SP) { 1014dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIE *SPDie = getDIE(SP); 1015dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (SPDie) 1016dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel return SPDie; 1017dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 101827302f07393d4db22e8ad06ac2ad4e7f01370b17Peter Collingbourne SPDie = new DIE(dwarf::DW_TAG_subprogram); 101927302f07393d4db22e8ad06ac2ad4e7f01370b17Peter Collingbourne 102027302f07393d4db22e8ad06ac2ad4e7f01370b17Peter Collingbourne // DW_TAG_inlined_subroutine may refer to this DIE. 102127302f07393d4db22e8ad06ac2ad4e7f01370b17Peter Collingbourne insertDIE(SP, SPDie); 102227302f07393d4db22e8ad06ac2ad4e7f01370b17Peter Collingbourne 102301b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola DISubprogram SPDecl = SP.getFunctionDeclaration(); 102401b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola DIE *DeclDie = NULL; 102501b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola if (SPDecl.isSubprogram()) { 102601b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola DeclDie = getOrCreateSubprogramDIE(SPDecl); 102701b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola } 102801b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola 1029dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // Add to context owner. 1030dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addToContextOwner(SPDie, SP.getContext()); 1031dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1032dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // Add function template parameters. 1033dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addTemplateParams(*SPDie, SP.getTemplateParams()); 1034dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1035e9722e1e8ba43bff2dc8ee3ae948e31f3fb0e370Eric Christopher // Unfortunately this code needs to stay here instead of below the 1036e9722e1e8ba43bff2dc8ee3ae948e31f3fb0e370Eric Christopher // AT_specification code in order to work around a bug in older 1037e9722e1e8ba43bff2dc8ee3ae948e31f3fb0e370Eric Christopher // gdbs that requires the linkage name to resolve multiple template 1038e9722e1e8ba43bff2dc8ee3ae948e31f3fb0e370Eric Christopher // functions. 1039cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher // TODO: Remove this set of code when we get rid of the old gdb 1040cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher // compatibility. 10418d101c31d293bcb8ece8fecdb3325cd0728bed08Eric Christopher StringRef LinkageName = SP.getLinkageName(); 1042cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher if (!LinkageName.empty() && DD->useDarwinGDBCompat()) 10438d101c31d293bcb8ece8fecdb3325cd0728bed08Eric Christopher addString(SPDie, dwarf::DW_AT_MIPS_linkage_name, 10448d101c31d293bcb8ece8fecdb3325cd0728bed08Eric Christopher getRealLinkageName(LinkageName)); 10458d101c31d293bcb8ece8fecdb3325cd0728bed08Eric Christopher 1046dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // If this DIE is going to refer declaration info using AT_specification 1047dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // then there is no need to add other attributes. 104801b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola if (DeclDie) { 104901b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola // Refer function declaration directly. 105001b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola addDIEEntry(SPDie, dwarf::DW_AT_specification, dwarf::DW_FORM_ref4, 105101b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola DeclDie); 105201b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola 1053dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel return SPDie; 105401b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola } 1055dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1056cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher // Add the linkage name if we have one. 1057cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher if (!LinkageName.empty() && !DD->useDarwinGDBCompat()) 1058cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher addString(SPDie, dwarf::DW_AT_MIPS_linkage_name, 1059cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher getRealLinkageName(LinkageName)); 1060cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher 1061dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // Constructors and operators for anonymous aggregates do not have names. 1062dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (!SP.getName().empty()) 1063390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(SPDie, dwarf::DW_AT_name, SP.getName()); 1064dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1065dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addSourceLine(SPDie, SP); 1066dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 10678b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher // Add the prototype if we have a prototype and we have a C like 10688b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher // language. 10698b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher if (SP.isPrototyped() && 10708b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher (Language == dwarf::DW_LANG_C89 || 10718b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher Language == dwarf::DW_LANG_C99 || 10728b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher Language == dwarf::DW_LANG_ObjC)) 1073873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(SPDie, dwarf::DW_AT_prototyped); 1074dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1075dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // Add Return Type. 1076dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DICompositeType SPTy = SP.getType(); 1077dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIArray Args = SPTy.getTypeArray(); 1078dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel unsigned SPTag = SPTy.getTag(); 1079dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1080dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (Args.getNumElements() == 0 || SPTag != dwarf::DW_TAG_subroutine_type) 1081dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addType(SPDie, SPTy); 1082dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel else 1083dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addType(SPDie, DIType(Args.getElement(0))); 1084dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1085dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel unsigned VK = SP.getVirtuality(); 1086dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (VK) { 1087798313d6c1f48634f0964d82c6b31364058a280fNick Lewycky addUInt(SPDie, dwarf::DW_AT_virtuality, dwarf::DW_FORM_data1, VK); 1088dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIEBlock *Block = getDIEBlock(); 1089dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_constu); 1090dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addUInt(Block, 0, dwarf::DW_FORM_udata, SP.getVirtualIndex()); 1091dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addBlock(SPDie, dwarf::DW_AT_vtable_elem_location, 0, Block); 1092dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel ContainingTypeMap.insert(std::make_pair(SPDie, 1093dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel SP.getContainingType())); 1094dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel } 1095dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1096dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (!SP.isDefinition()) { 1097873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(SPDie, dwarf::DW_AT_declaration); 1098dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1099dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // Add arguments. Do not add arguments for subprogram definition. They will 1100dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // be handled while processing variables. 1101dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DICompositeType SPTy = SP.getType(); 1102dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIArray Args = SPTy.getTypeArray(); 1103dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel unsigned SPTag = SPTy.getTag(); 1104dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1105dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (SPTag == dwarf::DW_TAG_subroutine_type) 1106dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel for (unsigned i = 1, N = Args.getNumElements(); i < N; ++i) { 1107dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIE *Arg = new DIE(dwarf::DW_TAG_formal_parameter); 1108dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIType ATy = DIType(DIType(Args.getElement(i))); 1109dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addType(Arg, ATy); 1110dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (ATy.isArtificial()) 1111873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(Arg, dwarf::DW_AT_artificial); 1112dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel SPDie->addChild(Arg); 1113dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel } 1114dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel } 1115dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1116dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (SP.isArtificial()) 1117873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(SPDie, dwarf::DW_AT_artificial); 1118dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1119dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (!SP.isLocalToUnit()) 1120873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(SPDie, dwarf::DW_AT_external); 1121dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1122dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (SP.isOptimized()) 1123873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(SPDie, dwarf::DW_AT_APPLE_optimized); 1124dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1125dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (unsigned isa = Asm->getISAEncoding()) { 1126dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addUInt(SPDie, dwarf::DW_AT_APPLE_isa, dwarf::DW_FORM_flag, isa); 1127dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel } 1128dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1129dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel return SPDie; 1130dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel} 1131dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 11326f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel// Return const expression if value is a GEP to access merged global 11336f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel// constant. e.g. 11346f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel// i8* getelementptr ({ i8, i8, i8, i8 }* @_MergedGlobals, i32 0, i32 0) 11356f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patelstatic const ConstantExpr *getMergedGlobalExpr(const Value *V) { 11366f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel const ConstantExpr *CE = dyn_cast_or_null<ConstantExpr>(V); 11376f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel if (!CE || CE->getNumOperands() != 3 || 11386f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel CE->getOpcode() != Instruction::GetElementPtr) 11396f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return NULL; 11406f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 11416f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // First operand points to a global struct. 11426f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel Value *Ptr = CE->getOperand(0); 11436f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel if (!isa<GlobalValue>(Ptr) || 11446f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel !isa<StructType>(cast<PointerType>(Ptr->getType())->getElementType())) 11456f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return NULL; 11466f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 11476f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Second operand is zero. 11486f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel const ConstantInt *CI = dyn_cast_or_null<ConstantInt>(CE->getOperand(1)); 11496f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel if (!CI || !CI->isZero()) 11506f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return NULL; 11516f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 11526f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Third operand is offset. 11536f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel if (!isa<ConstantInt>(CE->getOperand(2))) 11546f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return NULL; 11556f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 11566f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return CE; 11576f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel} 11586f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 11596f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel/// createGlobalVariableDIE - create global variable DIE. 11606f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patelvoid CompileUnit::createGlobalVariableDIE(const MDNode *N) { 11616f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Check for pre-existence. 116249e2f03849064d9dc26db3865ae419f17daadca6Devang Patel if (getDIE(N)) 11636f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return; 11646f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 116549e2f03849064d9dc26db3865ae419f17daadca6Devang Patel DIGlobalVariable GV(N); 116628bea08e531452992ff1e25e8584883dfbd4c232Devang Patel if (!GV.Verify()) 116728bea08e531452992ff1e25e8584883dfbd4c232Devang Patel return; 116828bea08e531452992ff1e25e8584883dfbd4c232Devang Patel 11696f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel DIE *VariableDIE = new DIE(GV.getTag()); 117049e2f03849064d9dc26db3865ae419f17daadca6Devang Patel // Add to map. 117149e2f03849064d9dc26db3865ae419f17daadca6Devang Patel insertDIE(N, VariableDIE); 11726f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 11736f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Add name. 1174390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(VariableDIE, dwarf::DW_AT_name, GV.getDisplayName()); 11756f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel StringRef LinkageName = GV.getLinkageName(); 117649e2f03849064d9dc26db3865ae419f17daadca6Devang Patel bool isGlobalVariable = GV.getGlobal() != NULL; 11776f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel if (!LinkageName.empty() && isGlobalVariable) 1178746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky addString(VariableDIE, dwarf::DW_AT_MIPS_linkage_name, 1179390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky getRealLinkageName(LinkageName)); 11806f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Add type. 118149e2f03849064d9dc26db3865ae419f17daadca6Devang Patel DIType GTy = GV.getType(); 11826f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addType(VariableDIE, GTy); 11836f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 11846f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Add scoping info. 1185dfa30e1ab243990eda4732a6dffb91e965e7a755Eric Christopher if (!GV.isLocalToUnit()) 1186873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(VariableDIE, dwarf::DW_AT_external); 1187dfa30e1ab243990eda4732a6dffb91e965e7a755Eric Christopher 11886f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Add line number info. 11896f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addSourceLine(VariableDIE, GV); 11906f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Add to context owner. 11916f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel DIDescriptor GVContext = GV.getContext(); 11926f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addToContextOwner(VariableDIE, GVContext); 11936f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Add location. 119409ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher bool addToAccelTable = false; 1195d61c34ba30888c49f4f223422f30b018a41594daEric Christopher DIE *VariableSpecDIE = NULL; 11966f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel if (isGlobalVariable) { 119709ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher addToAccelTable = true; 11986f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 11996f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_addr); 12006f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addLabel(Block, 0, dwarf::DW_FORM_udata, 12016f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel Asm->Mang->getSymbol(GV.getGlobal())); 12026f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Do not create specification DIE if context is either compile unit 12036f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // or a subprogram. 12041dd4e56d5565d59e9d40ad9e088a05e06f4b70f8Devang Patel if (GVContext && GV.isDefinition() && !GVContext.isCompileUnit() && 12056f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel !GVContext.isFile() && !isSubprogramContext(GVContext)) { 12066f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Create specification DIE. 1207d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher VariableSpecDIE = new DIE(dwarf::DW_TAG_variable); 12086f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addDIEEntry(VariableSpecDIE, dwarf::DW_AT_specification, 12096f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel dwarf::DW_FORM_ref4, VariableDIE); 12106f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addBlock(VariableSpecDIE, dwarf::DW_AT_location, 0, Block); 1211873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(VariableDIE, dwarf::DW_AT_declaration); 12126f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addDie(VariableSpecDIE); 12136f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel } else { 12146f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addBlock(VariableDIE, dwarf::DW_AT_location, 0, Block); 121509ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher } 12166f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel } else if (const ConstantInt *CI = 12176f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel dyn_cast_or_null<ConstantInt>(GV.getConstant())) 12186f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addConstantValue(VariableDIE, CI, GTy.isUnsignedDIType()); 12196f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel else if (const ConstantExpr *CE = getMergedGlobalExpr(N->getOperand(11))) { 122009ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher addToAccelTable = true; 12216f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // GV is a merged global. 12226f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 12236f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel Value *Ptr = CE->getOperand(0); 12246f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_addr); 12256f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addLabel(Block, 0, dwarf::DW_FORM_udata, 12266f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel Asm->Mang->getSymbol(cast<GlobalValue>(Ptr))); 12276f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_constu); 12286f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel SmallVector<Value*, 3> Idx(CE->op_begin()+1, CE->op_end()); 12296f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addUInt(Block, 0, dwarf::DW_FORM_udata, 12306f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel Asm->getTargetData().getIndexedOffset(Ptr->getType(), Idx)); 12316f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_plus); 12326f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addBlock(VariableDIE, dwarf::DW_AT_location, 0, Block); 12336f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel } 12346f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 1235d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher if (addToAccelTable) { 1236d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher DIE *AddrDIE = VariableSpecDIE ? VariableSpecDIE : VariableDIE; 1237d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher addAccelName(GV.getName(), AddrDIE); 123809ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher 1239d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher // If the linkage name is different than the name, go ahead and output 1240d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher // that as well into the name table. 1241d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher if (GV.getLinkageName() != "" && GV.getName() != GV.getLinkageName()) 1242d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher addAccelName(GV.getLinkageName(), AddrDIE); 1243d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher } 124474d8a87f40dd89ec263071c0af4d77104b166f4aEric Christopher 12456f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return; 12466f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel} 12476f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 1248161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// constructSubrangeDIE - Construct subrange DIE from DISubrange. 12494d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christophervoid CompileUnit::constructSubrangeDIE(DIE &Buffer, DISubrange SR, 12504d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher DIE *IndexTy) { 1251161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *DW_Subrange = new DIE(dwarf::DW_TAG_subrange_type); 1252161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addDIEEntry(DW_Subrange, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, IndexTy); 1253ce35d8b5a1071bb8ccf70bf8be3952dd0c4f2f15Devang Patel uint64_t L = SR.getLo(); 1254ce35d8b5a1071bb8ccf70bf8be3952dd0c4f2f15Devang Patel uint64_t H = SR.getHi(); 1255161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1256161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // The L value defines the lower bounds which is typically zero for C/C++. The 1257161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // H value is the upper bounds. Values are 64 bit. H - L + 1 is the size 1258161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // of the array. If L > H then do not emit DW_AT_lower_bound and 1259161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // DW_AT_upper_bound attributes. If L is zero and H is also zero then the 1260161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // array has one element and in such case do not emit lower bound. 1261161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1262161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (L > H) { 1263161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(DW_Subrange); 1264161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 1265161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 1266161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (L) 1267ce35d8b5a1071bb8ccf70bf8be3952dd0c4f2f15Devang Patel addUInt(DW_Subrange, dwarf::DW_AT_lower_bound, 0, L); 1268ce35d8b5a1071bb8ccf70bf8be3952dd0c4f2f15Devang Patel addUInt(DW_Subrange, dwarf::DW_AT_upper_bound, 0, H); 1269161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(DW_Subrange); 1270161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 1271161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1272161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// constructArrayTypeDIE - Construct array type DIE from DICompositeType. 1273161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::constructArrayTypeDIE(DIE &Buffer, 1274161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DICompositeType *CTy) { 1275161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.setTag(dwarf::DW_TAG_array_type); 1276161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (CTy->getTag() == dwarf::DW_TAG_vector_type) 1277873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(&Buffer, dwarf::DW_AT_GNU_vector); 1278161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1279161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Emit derived type. 1280161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(&Buffer, CTy->getTypeDerivedFrom()); 1281161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIArray Elements = CTy->getTypeArray(); 1282161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1283161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get an anonymous type for index type. 1284161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *IdxTy = getIndexTyDie(); 1285161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!IdxTy) { 1286161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Construct an anonymous type for index type. 1287161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel IdxTy = new DIE(dwarf::DW_TAG_base_type); 1288161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(IdxTy, dwarf::DW_AT_byte_size, 0, sizeof(int32_t)); 1289161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(IdxTy, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, 1290161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ATE_signed); 1291161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addDie(IdxTy); 1292161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel setIndexTyDie(IdxTy); 1293161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 1294161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1295161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add subranges to array type. 1296161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) { 1297161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Element = Elements.getElement(i); 1298161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Element.getTag() == dwarf::DW_TAG_subrange_type) 1299161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel constructSubrangeDIE(Buffer, DISubrange(Element), IdxTy); 1300161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 1301161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 1302161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1303161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// constructEnumTypeDIE - Construct enum type DIE from DIEnumerator. 1304161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelDIE *CompileUnit::constructEnumTypeDIE(DIEnumerator ETy) { 1305161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *Enumerator = new DIE(dwarf::DW_TAG_enumerator); 1306161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef Name = ETy.getName(); 1307390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(Enumerator, dwarf::DW_AT_name, Name); 1308161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel int64_t Value = ETy.getEnumValue(); 1309161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addSInt(Enumerator, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata, Value); 1310161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return Enumerator; 1311161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 1312161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1313dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel/// constructContainingTypeDIEs - Construct DIEs for types that contain 1314dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel/// vtables. 1315dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patelvoid CompileUnit::constructContainingTypeDIEs() { 1316dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel for (DenseMap<DIE *, const MDNode *>::iterator CI = ContainingTypeMap.begin(), 1317dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel CE = ContainingTypeMap.end(); CI != CE; ++CI) { 1318dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIE *SPDie = CI->first; 1319dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel const MDNode *N = CI->second; 1320dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (!N) continue; 1321dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIE *NDie = getDIE(N); 1322dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (!NDie) continue; 1323dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addDIEEntry(SPDie, dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4, NDie); 1324dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel } 1325dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel} 1326dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1327d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel/// constructVariableDIE - Construct a DIE for the given DbgVariable. 1328d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang PatelDIE *CompileUnit::constructVariableDIE(DbgVariable *DV, bool isScopeAbstract) { 1329d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel StringRef Name = DV->getName(); 1330d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (Name.empty()) 1331d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel return NULL; 1332d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1333d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel // Translate tag to proper Dwarf tag. 1334d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel unsigned Tag = DV->getTag(); 1335d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1336d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel // Define variable debug information entry. 1337d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DIE *VariableDie = new DIE(Tag); 1338d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DbgVariable *AbsVar = DV->getAbstractVariable(); 1339d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DIE *AbsDIE = AbsVar ? AbsVar->getDIE() : NULL; 1340d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (AbsDIE) 1341d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addDIEEntry(VariableDie, dwarf::DW_AT_abstract_origin, 1342d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel dwarf::DW_FORM_ref4, AbsDIE); 1343d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel else { 1344390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(VariableDie, dwarf::DW_AT_name, Name); 1345d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addSourceLine(VariableDie, DV->getVariable()); 1346d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addType(VariableDie, DV->getType()); 1347d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1348d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1349d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (DV->isArtificial()) 1350873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(VariableDie, dwarf::DW_AT_artificial); 1351d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1352d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (isScopeAbstract) { 1353d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DV->setDIE(VariableDie); 1354d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel return VariableDie; 1355d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1356d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1357d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel // Add variable address. 1358d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1359d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel unsigned Offset = DV->getDotDebugLocOffset(); 1360d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (Offset != ~0U) { 1361d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addLabel(VariableDie, dwarf::DW_AT_location, 1362d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel dwarf::DW_FORM_data4, 1363d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel Asm->GetTempSymbol("debug_loc", Offset)); 1364d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DV->setDIE(VariableDie); 1365d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel return VariableDie; 1366d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1367d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 13688cf5e74a9cc7482901125b810f1e482d24e9404dEric Christopher // Check if variable is described by a DBG_VALUE instruction. 1369d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (const MachineInstr *DVInsn = DV->getMInsn()) { 1370d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel bool updated = false; 1371d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (DVInsn->getNumOperands() == 3) { 1372d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (DVInsn->getOperand(0).isReg()) { 1373d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel const MachineOperand RegOp = DVInsn->getOperand(0); 1374d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel const TargetRegisterInfo *TRI = Asm->TM.getRegisterInfo(); 1375d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (DVInsn->getOperand(1).isImm() && 1376d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel TRI->getFrameRegister(*Asm->MF) == RegOp.getReg()) { 1377d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel unsigned FrameReg = 0; 1378d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel const TargetFrameLowering *TFI = Asm->TM.getFrameLowering(); 1379d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel int Offset = 1380d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel TFI->getFrameIndexReference(*Asm->MF, 1381d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DVInsn->getOperand(1).getImm(), 1382d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel FrameReg); 1383d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel MachineLocation Location(FrameReg, Offset); 1384d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addVariableAddress(DV, VariableDie, Location); 1385d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1386d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } else if (RegOp.getReg()) 1387d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addVariableAddress(DV, VariableDie, 1388d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel MachineLocation(RegOp.getReg())); 1389d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel updated = true; 1390d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1391d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel else if (DVInsn->getOperand(0).isImm()) 1392d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel updated = 1393d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addConstantValue(VariableDie, DVInsn->getOperand(0), 1394d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DV->getType()); 1395d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel else if (DVInsn->getOperand(0).isFPImm()) 1396d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel updated = 1397d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addConstantFPValue(VariableDie, DVInsn->getOperand(0)); 1398d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel else if (DVInsn->getOperand(0).isCImm()) 1399d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel updated = 1400d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addConstantValue(VariableDie, 1401d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DVInsn->getOperand(0).getCImm(), 1402d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DV->getType().isUnsignedDIType()); 1403d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } else { 1404d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addVariableAddress(DV, VariableDie, 1405d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel Asm->getDebugValueLocation(DVInsn)); 1406d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel updated = true; 1407d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1408d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (!updated) { 1409d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel // If variableDie is not updated then DBG_VALUE instruction does not 1410d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel // have valid variable info. 1411d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel delete VariableDie; 1412d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel return NULL; 1413d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1414d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DV->setDIE(VariableDie); 1415d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel return VariableDie; 1416d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } else { 1417d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel // .. else use frame index. 1418d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel int FI = DV->getFrameIndex(); 1419d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (FI != ~0) { 1420d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel unsigned FrameReg = 0; 1421d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel const TargetFrameLowering *TFI = Asm->TM.getFrameLowering(); 1422d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel int Offset = 1423d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel TFI->getFrameIndexReference(*Asm->MF, FI, FrameReg); 1424d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel MachineLocation Location(FrameReg, Offset); 1425d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addVariableAddress(DV, VariableDie, Location); 1426d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1427d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1428d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1429d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DV->setDIE(VariableDie); 1430d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel return VariableDie; 1431d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel} 1432d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1433161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// createMemberDIE - Create new member DIE. 1434161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelDIE *CompileUnit::createMemberDIE(DIDerivedType DT) { 1435161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *MemberDie = new DIE(DT.getTag()); 1436161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef Name = DT.getName(); 1437161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Name.empty()) 1438390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(MemberDie, dwarf::DW_AT_name, Name); 1439161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1440161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(MemberDie, DT.getTypeDerivedFrom()); 1441161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1442161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addSourceLine(MemberDie, DT); 1443161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1444161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *MemLocationDie = new (DIEValueAllocator) DIEBlock(); 1445161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(MemLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst); 1446161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1447161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t Size = DT.getSizeInBits(); 1448161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t FieldSize = DT.getOriginalTypeSize(); 1449161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1450161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Size != FieldSize) { 1451161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Handle bitfield. 1452161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(MemberDie, dwarf::DW_AT_byte_size, 0, DT.getOriginalTypeSize()>>3); 1453161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(MemberDie, dwarf::DW_AT_bit_size, 0, DT.getSizeInBits()); 1454161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1455161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t Offset = DT.getOffsetInBits(); 1456161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t AlignMask = ~(DT.getAlignInBits() - 1); 1457161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t HiMark = (Offset + FieldSize) & AlignMask; 1458161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t FieldOffset = (HiMark - FieldSize); 1459161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Offset -= FieldOffset; 1460161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1461161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Maybe we need to work from the other end. 1462161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Asm->getTargetData().isLittleEndian()) 1463161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Offset = FieldSize - (Offset + Size); 1464161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(MemberDie, dwarf::DW_AT_bit_offset, 0, Offset); 1465161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1466161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Here WD_AT_data_member_location points to the anonymous 1467161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // field that includes this bit field. 1468161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(MemLocationDie, 0, dwarf::DW_FORM_udata, FieldOffset >> 3); 1469161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1470161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else 1471161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // This is not a bitfield. 1472161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(MemLocationDie, 0, dwarf::DW_FORM_udata, DT.getOffsetInBits() >> 3); 1473161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1474161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (DT.getTag() == dwarf::DW_TAG_inheritance 1475161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel && DT.isVirtual()) { 1476161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1477161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // For C++, virtual base classes are not at fixed offset. Use following 1478161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // expression to extract appropriate offset from vtable. 1479161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // BaseAddr = ObAddr + *((*ObAddr) - Offset) 1480161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1481161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *VBaseLocationDie = new (DIEValueAllocator) DIEBlock(); 1482161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_dup); 1483161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_deref); 1484161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_constu); 1485161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_udata, DT.getOffsetInBits()); 1486161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_minus); 1487161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_deref); 1488161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_plus); 1489161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1490161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(MemberDie, dwarf::DW_AT_data_member_location, 0, 1491161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel VBaseLocationDie); 1492161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else 1493161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(MemberDie, dwarf::DW_AT_data_member_location, 0, MemLocationDie); 1494161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1495161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (DT.isProtected()) 149613aaca5edf538f967c16b8bdbfe293e2f9d75fc1Nick Lewycky addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1, 1497161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ACCESS_protected); 1498161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (DT.isPrivate()) 149913aaca5edf538f967c16b8bdbfe293e2f9d75fc1Nick Lewycky addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1, 1500161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ACCESS_private); 1501161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Otherwise C++ member and base classes are considered public. 150294c7ddb6f52a5200983fed0ce74dc602a7737879Devang Patel else 150313aaca5edf538f967c16b8bdbfe293e2f9d75fc1Nick Lewycky addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1, 1504161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ACCESS_public); 1505161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (DT.isVirtual()) 1506798313d6c1f48634f0964d82c6b31364058a280fNick Lewycky addUInt(MemberDie, dwarf::DW_AT_virtuality, dwarf::DW_FORM_data1, 1507161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_VIRTUALITY_virtual); 1508e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel 1509e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel // Objective-C properties. 15106588abf377b7381274236e651462ec83052f6013Devang Patel if (MDNode *PNode = DT.getObjCProperty()) 15116588abf377b7381274236e651462ec83052f6013Devang Patel if (DIEEntry *PropertyDie = getDIEEntry(PNode)) 15126588abf377b7381274236e651462ec83052f6013Devang Patel MemberDie->addValue(dwarf::DW_AT_APPLE_property, dwarf::DW_FORM_ref4, 15136588abf377b7381274236e651462ec83052f6013Devang Patel PropertyDie); 15146588abf377b7381274236e651462ec83052f6013Devang Patel 15159e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel // This is only for backward compatibility. 1516e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel StringRef PropertyName = DT.getObjCPropertyName(); 1517e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (!PropertyName.empty()) { 1518390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(MemberDie, dwarf::DW_AT_APPLE_property_name, PropertyName); 1519e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel StringRef GetterName = DT.getObjCPropertyGetterName(); 1520e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (!GetterName.empty()) 1521390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(MemberDie, dwarf::DW_AT_APPLE_property_getter, GetterName); 1522e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel StringRef SetterName = DT.getObjCPropertySetterName(); 1523e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (!SetterName.empty()) 1524390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(MemberDie, dwarf::DW_AT_APPLE_property_setter, SetterName); 1525e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel unsigned PropertyAttributes = 0; 1526e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (DT.isReadOnlyObjCProperty()) 1527e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readonly; 1528e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (DT.isReadWriteObjCProperty()) 1529e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readwrite; 1530e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (DT.isAssignObjCProperty()) 1531e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_assign; 1532e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (DT.isRetainObjCProperty()) 1533e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_retain; 1534e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (DT.isCopyObjCProperty()) 1535e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_copy; 1536e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (DT.isNonAtomicObjCProperty()) 1537e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_nonatomic; 1538e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (PropertyAttributes) 1539e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel addUInt(MemberDie, dwarf::DW_AT_APPLE_property_attribute, 0, 1540e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes); 1541e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel } 1542161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return MemberDie; 1543161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 1544