CGObjCGNU.cpp revision 46f45b9bec4a265ad8400a538e5ec3a5683617f1
120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//===------- CGObjCGNU.cpp - Emit LLVM Code from ASTs for a Module --------===// 20f984268b05edab2cc555a427c441baa9c252658Chris Lattner// 30f984268b05edab2cc555a427c441baa9c252658Chris Lattner// The LLVM Compiler Infrastructure 40f984268b05edab2cc555a427c441baa9c252658Chris Lattner// 50f984268b05edab2cc555a427c441baa9c252658Chris Lattner// This file is distributed under the University of Illinois Open Source 60f984268b05edab2cc555a427c441baa9c252658Chris Lattner// License. See LICENSE.TXT for details. 70f984268b05edab2cc555a427c441baa9c252658Chris Lattner// 80f984268b05edab2cc555a427c441baa9c252658Chris Lattner//===----------------------------------------------------------------------===// 90f984268b05edab2cc555a427c441baa9c252658Chris Lattner// 1020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// This provides Objective-C code generation targetting the GNU runtime. The 1120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// class in this file generates structures used by the GNU Objective-C runtime 1220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// library. These structures are defined in objc/objc.h and objc/objc-api.h in 1320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// the GNU runtime distribution. 140f984268b05edab2cc555a427c441baa9c252658Chris Lattner// 150f984268b05edab2cc555a427c441baa9c252658Chris Lattner//===----------------------------------------------------------------------===// 160f984268b05edab2cc555a427c441baa9c252658Chris Lattner 170f984268b05edab2cc555a427c441baa9c252658Chris Lattner#include "CGObjCRuntime.h" 18dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner#include "CodeGenModule.h" 198f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar#include "CodeGenFunction.h" 20dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner#include "clang/AST/ASTContext.h" 21e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Decl.h" 22af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar#include "clang/AST/DeclObjC.h" 230f984268b05edab2cc555a427c441baa9c252658Chris Lattner#include "llvm/Module.h" 240f984268b05edab2cc555a427c441baa9c252658Chris Lattner#include "llvm/ADT/SmallVector.h" 2520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov#include "llvm/ADT/StringMap.h" 267ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar#include "llvm/Support/Compiler.h" 277ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar#include "llvm/Support/IRBuilder.h" 287ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar#include "llvm/Target/TargetData.h" 2920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov#include <map> 30dce1406f1c1f572cfd61c494546572d63461c741Chris Lattnerusing namespace clang; 3146f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbarusing namespace CodeGen; 3220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovusing llvm::dyn_cast; 3320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 3420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// The version of the runtime that this class targets. Must match the version 3520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// in the runtime. 3620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic const int RuntimeVersion = 8; 3720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic const int ProtocolVersion = 2; 380f984268b05edab2cc555a427c441baa9c252658Chris Lattner 390f984268b05edab2cc555a427c441baa9c252658Chris Lattnernamespace { 40dce1406f1c1f572cfd61c494546572d63461c741Chris Lattnerclass CGObjCGNU : public CodeGen::CGObjCRuntime { 410f984268b05edab2cc555a427c441baa9c252658Chris Lattnerprivate: 42dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner CodeGen::CodeGenModule &CGM; 430f984268b05edab2cc555a427c441baa9c252658Chris Lattner llvm::Module &TheModule; 4420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::StructType *SelStructTy; 45391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *SelectorTy; 46391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *PtrToInt8Ty; 47391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *IMPTy; 48391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *IdTy; 49391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *IntTy; 50391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *PtrTy; 51391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *LongTy; 52391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *PtrToIntTy; 5320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Classes; 5420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Categories; 5520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> ConstantStrings; 5620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Function *LoadFunction; 5720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StringMap<llvm::Constant*> ExistingProtocols; 5820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov typedef std::pair<std::string, std::string> TypedSelector; 5920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::map<TypedSelector, llvm::GlobalAlias*> TypedSelectors; 6020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StringMap<llvm::GlobalAlias*> UntypedSelectors; 6120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Some zeros used for GEPs in lots of places. 6220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Zeros[2]; 6320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *NULLPtr; 6420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovprivate: 6520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateIvarList( 6620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarNames, 6720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarTypes, 6820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarOffsets); 6920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateMethodList(const std::string &ClassName, 7020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const std::string &CategoryName, 71a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner const llvm::SmallVectorImpl<Selector> &MethodSels, 7220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes, 7320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov bool isClassMethodList); 7420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateProtocolList( 7520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols); 7620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateClassStructure( 7720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClass, 7820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass, 7920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov unsigned info, 80d002cc6fc5b72bf00e3b7b4571ccf0f23c789b4bChris Lattner const char *Name, 8120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Version, 8220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceSize, 8320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IVars, 8420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Methods, 8520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Protocols); 8620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateProtocolMethodList( 8720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodNames, 8820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes); 8920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MakeConstantString(const std::string &Str, const std::string 9020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov &Name=""); 9120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MakeGlobal(const llvm::StructType *Ty, 9220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name=""); 9320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MakeGlobal(const llvm::ArrayType *Ty, 9420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name=""); 950f984268b05edab2cc555a427c441baa9c252658Chris Lattnerpublic: 96dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner CGObjCGNU(CodeGen::CodeGenModule &cgm); 97bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbar virtual llvm::Constant *GenerateConstantString(const std::string &String); 988f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar virtual CodeGen::RValue 998f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar GenerateMessageSend(CodeGen::CodeGenFunction &CGF, 1007f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 1017f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 102f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 10319cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 10419cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs); 1058f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar virtual CodeGen::RValue 1068f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, 1077f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 1087f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 109f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar const ObjCInterfaceDecl *Class, 110f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 11119cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 11219cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs); 113ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar virtual llvm::Value *GetClass(llvm::IRBuilder<> &Builder, 114ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar const ObjCInterfaceDecl *OID); 11585e356825b291f86c6e926638914222b834b71a3Chris Lattner virtual llvm::Value *GetSelector(llvm::IRBuilder<> &Builder, Selector Sel); 1168e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 1177ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar virtual llvm::Function *GenerateMethod(const ObjCMethodDecl *OMD); 1187ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar virtual void GenerateCategory(const ObjCCategoryImplDecl *CMD); 1197ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar virtual void GenerateClass(const ObjCImplementationDecl *ClassDecl); 12085e356825b291f86c6e926638914222b834b71a3Chris Lattner virtual llvm::Value *GenerateProtocolRef(llvm::IRBuilder<> &Builder, 121af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar const ObjCProtocolDecl *PD); 122af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar virtual void GenerateProtocol(const ObjCProtocolDecl *PD); 12320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual llvm::Function *ModuleInitFunction(); 1242abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson virtual llvm::Function *EnumerationMutationFunction(); 1250f984268b05edab2cc555a427c441baa9c252658Chris Lattner}; 1260f984268b05edab2cc555a427c441baa9c252658Chris Lattner} // end anonymous namespace 1270f984268b05edab2cc555a427c441baa9c252658Chris Lattner 12820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 12920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 13020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic std::string SymbolNameForClass(const std::string &ClassName) { 13120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return ".objc_class_" + ClassName; 13220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 13320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 13420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic std::string SymbolNameForMethod(const std::string &ClassName, const 13520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::string &CategoryName, const std::string &MethodName, bool isClassMethod) 13620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov{ 13720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return "._objc_method_" + ClassName +"("+CategoryName+")"+ 13820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (isClassMethod ? "+" : "-") + MethodName; 13920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 14020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 141dce1406f1c1f572cfd61c494546572d63461c741Chris LattnerCGObjCGNU::CGObjCGNU(CodeGen::CodeGenModule &cgm) 142dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner : CGM(cgm), TheModule(CGM.getModule()) { 143dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner IntTy = CGM.getTypes().ConvertType(CGM.getContext().IntTy); 144dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner LongTy = CGM.getTypes().ConvertType(CGM.getContext().LongTy); 145dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner 14620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros[0] = llvm::ConstantInt::get(llvm::Type::Int32Ty, 0); 14720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros[1] = Zeros[0]; 14820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULLPtr = llvm::ConstantPointerNull::get( 14920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(llvm::Type::Int8Ty)); 150391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // C string type. Used in lots of places. 151391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty = 152391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::PointerType::getUnqual(llvm::Type::Int8Ty); 153391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // Get the selector Type. 15420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SelStructTy = llvm::StructType::get( 155391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty, 156391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty, 157391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner NULL); 158391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner SelectorTy = llvm::PointerType::getUnqual(SelStructTy); 159391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToIntTy = llvm::PointerType::getUnqual(IntTy); 160391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrTy = PtrToInt8Ty; 161391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 162391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // Object type 163391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::PATypeHolder OpaqueObjTy = llvm::OpaqueType::get(); 164391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Type *OpaqueIdTy = llvm::PointerType::getUnqual(OpaqueObjTy); 165391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IdTy = llvm::StructType::get(OpaqueIdTy, NULL); 166391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::cast<llvm::OpaqueType>(OpaqueObjTy.get())->refineAbstractTypeTo(IdTy); 167391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IdTy = llvm::cast<llvm::StructType>(OpaqueObjTy.get()); 168391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IdTy = llvm::PointerType::getUnqual(IdTy); 169391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 170391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // IMP type 171391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner std::vector<const llvm::Type*> IMPArgs; 172391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPArgs.push_back(IdTy); 173391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPArgs.push_back(SelectorTy); 174391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPTy = llvm::FunctionType::get(IdTy, IMPArgs, true); 17520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 17620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// This has to perform the lookup every time, since posing and related 17720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// techniques can modify the name -> class mapping. 178ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbarllvm::Value *CGObjCGNU::GetClass(llvm::IRBuilder<> &Builder, 179ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar const ObjCInterfaceDecl *OID) { 180ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar llvm::Value *ClassName = CGM.GetAddrOfConstantCString(OID->getName()); 181ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar ClassName = Builder.CreateStructGEP(ClassName, 0); 182ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar 18320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassLookupFn = 18420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TheModule.getOrInsertFunction("objc_lookup_class", IdTy, PtrToInt8Ty, 18520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 18620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return Builder.CreateCall(ClassLookupFn, ClassName); 187391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner} 188391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 1898e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner/// GetSelector - Return the pointer to the unique'd string for this selector. 19085e356825b291f86c6e926638914222b834b71a3Chris Lattnerllvm::Value *CGObjCGNU::GetSelector(llvm::IRBuilder<> &Builder, Selector Sel) { 1918e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner // FIXME: uniquing on the string is wasteful, unique on Sel instead! 1928e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner llvm::GlobalAlias *&US = UntypedSelectors[Sel.getName()]; 1938e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner if (US == 0) 1948e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner US = new llvm::GlobalAlias(llvm::PointerType::getUnqual(SelectorTy), 1958e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner llvm::GlobalValue::InternalLinkage, 1968e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner ".objc_untyped_selector_alias", 1978e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner NULL, &TheModule); 1988e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 1998e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner return Builder.CreateLoad(US); 2008e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 2018e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner} 2028e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 2035e7dcc62e4637591959f9c372f6c5258d0d263e0Chris Lattnerllvm::Constant *CGObjCGNU::MakeConstantString(const std::string &Str, 2045e7dcc62e4637591959f9c372f6c5258d0d263e0Chris Lattner const std::string &Name) { 20520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant * ConstStr = llvm::ConstantArray::get(Str); 20620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstStr = new llvm::GlobalVariable(ConstStr->getType(), true, 20720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 20820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstStr, Name, &TheModule); 20920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return llvm::ConstantExpr::getGetElementPtr(ConstStr, Zeros, 2); 21020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 21120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::MakeGlobal(const llvm::StructType *Ty, 21220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name) { 21320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *C = llvm::ConstantStruct::get(Ty, V); 21420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return new llvm::GlobalVariable(Ty, false, 21520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, C, Name, &TheModule); 21620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 21720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::MakeGlobal(const llvm::ArrayType *Ty, 21820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name) { 21920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *C = llvm::ConstantArray::get(Ty, V); 22020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return new llvm::GlobalVariable(Ty, false, 22120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, C, Name, &TheModule); 22220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 22320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 22420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate an NSConstantString object. 22520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//TODO: In case there are any crazy people still using the GNU runtime without 22620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//an OpenStep implementation, this should let them select their own class for 22720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//constant strings. 228bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbarllvm::Constant *CGObjCGNU::GenerateConstantString(const std::string &Str) { 22920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Ivars; 23020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars.push_back(NULLPtr); 23113fd7e5111032f54b538dd66d035b0ccc1f82467Chris Lattner Ivars.push_back(MakeConstantString(Str)); 232bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbar Ivars.push_back(llvm::ConstantInt::get(IntTy, Str.size())); 23320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ObjCStr = MakeGlobal( 23420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType::get(PtrToInt8Ty, PtrToInt8Ty, IntTy, NULL), 23520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars, ".objc_str"); 23620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.push_back( 23720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(ObjCStr, PtrToInt8Ty)); 23820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return ObjCStr; 23920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 24020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 24120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///Generates a message send where the super is the receiver. This is a message 24220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///send to self with special delivery semantics indicating which class's method 24320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///should be called. 2448f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCodeGen::RValue 2458f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCGObjCGNU::GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, 2467f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 2477f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 248f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar const ObjCInterfaceDecl *Class, 249f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 25019cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 25119cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs) { 252f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar const ObjCInterfaceDecl *SuperClass = Class->getSuperClass(); 2537f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar const llvm::Type *ReturnTy = CGM.getTypes().ConvertType(ResultType); 25420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // TODO: This should be cached, not looked up every time. 2558f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *ReceiverClass = GetClass(CGF.Builder, SuperClass); 2567f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar llvm::Value *cmd = GetSelector(CGF.Builder, Sel); 25720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<const llvm::Type*> impArgTypes; 25820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov impArgTypes.push_back(Receiver->getType()); 25920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov impArgTypes.push_back(SelectorTy); 26020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 26120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Avoid an explicit cast on the IMP by getting a version that has the right 26220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // return type. 26320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::FunctionType *impType = llvm::FunctionType::get(ReturnTy, impArgTypes, 26420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov true); 26520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Construct the structure used to look up the IMP 26620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCSuperTy = llvm::StructType::get(Receiver->getType(), 26720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IdTy, NULL); 2688f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *ObjCSuper = CGF.Builder.CreateAlloca(ObjCSuperTy); 2691e692ace08959399794363e77499b73da5494af9Eli Friedman // FIXME: volatility 2708f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar CGF.Builder.CreateStore(Receiver, CGF.Builder.CreateStructGEP(ObjCSuper, 0)); 2718f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar CGF.Builder.CreateStore(ReceiverClass, CGF.Builder.CreateStructGEP(ObjCSuper, 1)); 27220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 27320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the IMP 27420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *lookupFunction = 27520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TheModule.getOrInsertFunction("objc_msg_lookup_super", 27620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(impType), 27720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(ObjCSuperTy), 27820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SelectorTy, NULL); 27920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *lookupArgs[] = {ObjCSuper, cmd}; 2808f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *imp = CGF.Builder.CreateCall(lookupFunction, lookupArgs, 28120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov lookupArgs+2); 28220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 28320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Call the method 28419cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CallArgList ActualArgs; 28546f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar ActualArgs.push_back(std::make_pair(RValue::get(Receiver), 28619cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CGF.getContext().getObjCIdType())); 28746f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar ActualArgs.push_back(std::make_pair(RValue::get(cmd), 28819cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CGF.getContext().getObjCSelType())); 28919cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar ActualArgs.insert(ActualArgs.end(), CallArgs.begin(), CallArgs.end()); 2907f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar return CGF.EmitCall(imp, ResultType, ActualArgs); 29120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 29220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 29320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate code for a message send expression. 2948f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCodeGen::RValue 2958f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCGObjCGNU::GenerateMessageSend(CodeGen::CodeGenFunction &CGF, 2967f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 2977f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 298f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 29919cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 30019cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs) { 3017f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar const llvm::Type *ReturnTy = CGM.getTypes().ConvertType(ResultType); 3027f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar llvm::Value *cmd = GetSelector(CGF.Builder, Sel); 3030f984268b05edab2cc555a427c441baa9c252658Chris Lattner 3040f984268b05edab2cc555a427c441baa9c252658Chris Lattner // Look up the method implementation. 3050f984268b05edab2cc555a427c441baa9c252658Chris Lattner std::vector<const llvm::Type*> impArgTypes; 30620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::Type *RetTy; 30720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //TODO: Revisit this when LLVM supports aggregate return types. 30820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (ReturnTy->isSingleValueType() && ReturnTy != llvm::Type::VoidTy) { 30920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov RetTy = ReturnTy; 31020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } else { 31120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // For struct returns allocate the space in the caller and pass it up to 31220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // the sender. 31320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov RetTy = llvm::Type::VoidTy; 31420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov impArgTypes.push_back(llvm::PointerType::getUnqual(ReturnTy)); 31520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 3160f984268b05edab2cc555a427c441baa9c252658Chris Lattner impArgTypes.push_back(Receiver->getType()); 317391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner impArgTypes.push_back(SelectorTy); 3180f984268b05edab2cc555a427c441baa9c252658Chris Lattner 3190f984268b05edab2cc555a427c441baa9c252658Chris Lattner // Avoid an explicit cast on the IMP by getting a version that has the right 3200f984268b05edab2cc555a427c441baa9c252658Chris Lattner // return type. 32120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::FunctionType *impType = llvm::FunctionType::get(RetTy, impArgTypes, 3220f984268b05edab2cc555a427c441baa9c252658Chris Lattner true); 3230f984268b05edab2cc555a427c441baa9c252658Chris Lattner 3240f984268b05edab2cc555a427c441baa9c252658Chris Lattner llvm::Constant *lookupFunction = 3250f984268b05edab2cc555a427c441baa9c252658Chris Lattner TheModule.getOrInsertFunction("objc_msg_lookup", 326391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::PointerType::getUnqual(impType), 327391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner Receiver->getType(), SelectorTy, NULL); 3288f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *imp = CGF.Builder.CreateCall2(lookupFunction, Receiver, cmd); 3293eae03e7d165f20a863a9a4d7122ba2a691ab16dChris Lattner 3303eae03e7d165f20a863a9a4d7122ba2a691ab16dChris Lattner // Call the method. 33119cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CallArgList ActualArgs; 33246f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar ActualArgs.push_back(std::make_pair(RValue::get(Receiver), 33319cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CGF.getContext().getObjCIdType())); 33446f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar ActualArgs.push_back(std::make_pair(RValue::get(cmd), 33519cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CGF.getContext().getObjCSelType())); 33619cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar ActualArgs.insert(ActualArgs.end(), CallArgs.begin(), CallArgs.end()); 3377f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar return CGF.EmitCall(imp, ResultType, ActualArgs); 33820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 33920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 34020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generates a MethodList. Used in construction of a objc_class and 34120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// objc_category structures. 34220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateMethodList(const std::string &ClassName, 343a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner const std::string &CategoryName, 344a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner const llvm::SmallVectorImpl<Selector> &MethodSels, 34520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes, 34620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov bool isClassMethodList) { 34720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 34820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodTy = llvm::StructType::get( 34920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Really a selector, but the runtime creates it us. 35020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Method types 35120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(IMPTy), //Method pointer 35220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 35320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Methods; 35420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 35520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = MethodTypes.size(); i < e; ++i) { 35620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 3576143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar llvm::Constant *C = CGM.GetAddrOfConstantCString(MethodSels[i].getName()); 358a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner Elements.push_back(llvm::ConstantExpr::getGetElementPtr(C, Zeros, 2)); 35920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 36020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(MethodTypes[i], Zeros, 2)); 36120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Method = 36220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TheModule.getFunction(SymbolNameForMethod(ClassName, CategoryName, 363a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner MethodSels[i].getName(), 364550b8db03c0bb1b006d2ff63d4febda3db16002fChris Lattner isClassMethodList)); 36520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Method = llvm::ConstantExpr::getBitCast(Method, 36620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(IMPTy)); 36720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Method); 36820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantStruct::get(ObjCMethodTy, Elements)); 36920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 37020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 37120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of method structures 37220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCMethodArrayTy = llvm::ArrayType::get(ObjCMethodTy, 373a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner MethodSels.size()); 37420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MethodArray = llvm::ConstantArray::get(ObjCMethodArrayTy, 375fba676396703e87a5034e5f308aa30a633468f66Chris Lattner Methods); 37620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 37720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Structure containing list pointer, array and array count 37820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::SmallVector<const llvm::Type*, 16> ObjCMethodListFields; 37920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PATypeHolder OpaqueNextTy = llvm::OpaqueType::get(); 38020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Type *NextPtrTy = llvm::PointerType::getUnqual(OpaqueNextTy); 38120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodListTy = llvm::StructType::get(NextPtrTy, 38220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, 38320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCMethodArrayTy, 38420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 38520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Refine next pointer type to concrete type 38620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::OpaqueType>( 38720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov OpaqueNextTy.get())->refineAbstractTypeTo(ObjCMethodListTy); 38820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCMethodListTy = llvm::cast<llvm::StructType>(OpaqueNextTy.get()); 38920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 39020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.clear(); 39120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantPointerNull::get( 39220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(ObjCMethodListTy))); 39320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantInt::get(llvm::Type::Int32Ty, 39420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodTypes.size())); 39520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(MethodArray); 39620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 39720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 39820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCMethodListTy, Methods, ".objc_method_list"); 39920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 40020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 40120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generates an IvarList. Used in construction of a objc_class. 40220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateIvarList( 40320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarNames, 40420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarTypes, 40520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarOffsets) { 40620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 40720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCIvarTy = llvm::StructType::get( 40820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 40920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 41020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, 41120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 41220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Ivars; 41320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 41420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = IvarNames.size() ; i < e ; i++) { 41520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 41620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(IvarNames[i], 41720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 41820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(IvarTypes[i], 41920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 42020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(IvarOffsets[i]); 42120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars.push_back(llvm::ConstantStruct::get(ObjCIvarTy, Elements)); 42220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 42320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 42420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of method structures 42520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCIvarArrayTy = llvm::ArrayType::get(ObjCIvarTy, 42620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IvarNames.size()); 42720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 42820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 42920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 43020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get( 43120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::IntegerType>(IntTy), (int)IvarNames.size())); 43220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantArray::get(ObjCIvarArrayTy, Ivars)); 43320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Structure containing array and array count 43420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCIvarListTy = llvm::StructType::get(IntTy, 43520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCIvarArrayTy, 43620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 43720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 43820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 43920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCIvarListTy, Elements, ".objc_ivar_list"); 4400f984268b05edab2cc555a427c441baa9c252658Chris Lattner} 4410f984268b05edab2cc555a427c441baa9c252658Chris Lattner 44220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate a class structure 44320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateClassStructure( 44420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClass, 44520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass, 44620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov unsigned info, 447d002cc6fc5b72bf00e3b7b4571ccf0f23c789b4bChris Lattner const char *Name, 44820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Version, 44920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceSize, 45020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IVars, 45120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Methods, 45220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Protocols) { 45320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Set up the class structure 45420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Note: Several of these are char*s when they should be ids. This is 45520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // because the runtime performs this translation on load. 45620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ClassTy = llvm::StructType::get( 45720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // class_pointer 45820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // super_class 45920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // name 46020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // version 46120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // info 46220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // instance_size 46320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IVars->getType(), // ivars 46420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods->getType(), // methods 46520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // These are all filled in by the runtime, so we pretend 46620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // dtable 46720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // subclass_list 46820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // sibling_class 46920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // protocols 47020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // gc_object_type 47120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 47220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Zero = llvm::ConstantInt::get(LongTy, 0); 47320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *NullP = 47420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantPointerNull::get(llvm::cast<llvm::PointerType>(PtrTy)); 47520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Fill in the structure 47620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 47720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(MetaClass, PtrToInt8Ty)); 47820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(SuperClass); 479d002cc6fc5b72bf00e3b7b4571ccf0f23c789b4bChris Lattner Elements.push_back(MakeConstantString(Name, ".class_name")); 48020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Zero); 48120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, info)); 48220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(InstanceSize); 48320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(IVars); 48420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Methods); 48520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 48620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 48720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 48820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(Protocols, PtrTy)); 48920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 49020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 4911565e0364b05d163640dd2b6feed43bae67df4fdChris Lattner return MakeGlobal(ClassTy, Elements, SymbolNameForClass(Name)); 49220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 49320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 49420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateProtocolMethodList( 49520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodNames, 49620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes) { 49720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 49820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodDescTy = llvm::StructType::get( 49920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Really a selector, but the runtime does the casting for us. 50020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 50120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 50220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Methods; 50320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 50420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = MethodTypes.size() ; i < e ; i++) { 50520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 50620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(MethodNames[i], 50720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 50820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 50920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(MethodTypes[i], Zeros, 2)); 51020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantStruct::get(ObjCMethodDescTy, Elements)); 51120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 51220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCMethodArrayTy = llvm::ArrayType::get(ObjCMethodDescTy, 51320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodNames.size()); 51420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Array = llvm::ConstantArray::get(ObjCMethodArrayTy, Methods); 51520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodDescListTy = llvm::StructType::get( 51620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, ObjCMethodArrayTy, NULL); 51720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.clear(); 51820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantInt::get(IntTy, MethodNames.size())); 51920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(Array); 52020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCMethodDescListTy, Methods, ".objc_method_list"); 52120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 52220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// Create the protocol list structure used in classes, categories and so on 52320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateProtocolList( 52420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols) { 52520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ProtocolArrayTy = llvm::ArrayType::get(PtrToInt8Ty, 52620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Protocols.size()); 52720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ProtocolListTy = llvm::StructType::get( 52820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, //Should be a recurisve pointer, but it's always NULL here. 52920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy,//FIXME: Should be size_t 53020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ProtocolArrayTy, 53120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 53220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 53320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (const std::string *iter = Protocols.begin(), *endIter = Protocols.end(); 53420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != endIter ; iter++) { 53520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Ptr = 53620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(ExistingProtocols[*iter], PtrToInt8Ty); 53720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Ptr); 53820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 53920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant * ProtocolArray = llvm::ConstantArray::get(ProtocolArrayTy, 54020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements); 54120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 54220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 54320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get( 54420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::IntegerType>(LongTy), Protocols.size())); 54520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ProtocolArray); 54620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ProtocolListTy, Elements, ".objc_protocol_list"); 54720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 54820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 549af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbarllvm::Value *CGObjCGNU::GenerateProtocolRef(llvm::IRBuilder<> &Builder, 550af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar const ObjCProtocolDecl *PD) { 551af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar return ExistingProtocols[PD->getName()]; 55220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 55320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 554af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbarvoid CGObjCGNU::GenerateProtocol(const ObjCProtocolDecl *PD) { 555af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar ASTContext &Context = CGM.getContext(); 556af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar const char *ProtocolName = PD->getName(); 557af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<std::string, 16> Protocols; 558af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar for (ObjCProtocolDecl::protocol_iterator PI = PD->protocol_begin(), 559af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar E = PD->protocol_end(); PI != E; ++PI) 560af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar Protocols.push_back((*PI)->getName()); 561af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodNames; 562af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodTypes; 563af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar for (ObjCProtocolDecl::instmeth_iterator iter = PD->instmeth_begin(), 564af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar E = PD->instmeth_end(); iter != E; iter++) { 565af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar std::string TypeStr; 566af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar Context.getObjCEncodingForMethodDecl(*iter, TypeStr); 567af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar InstanceMethodNames.push_back( 5686143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar CGM.GetAddrOfConstantCString((*iter)->getSelector().getName())); 5696143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar InstanceMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 570af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar } 571af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar // Collect information about class methods: 572af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodNames; 573af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodTypes; 574af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar for (ObjCProtocolDecl::classmeth_iterator iter = PD->classmeth_begin(), 575af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar endIter = PD->classmeth_end() ; iter != endIter ; iter++) { 576af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar std::string TypeStr; 577af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar Context.getObjCEncodingForMethodDecl((*iter),TypeStr); 578af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar ClassMethodNames.push_back( 5796143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar CGM.GetAddrOfConstantCString((*iter)->getSelector().getName())); 5806143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar ClassMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 581af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar } 58220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 58320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ProtocolList = GenerateProtocolList(Protocols); 58420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceMethodList = 58520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolMethodList(InstanceMethodNames, InstanceMethodTypes); 58620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassMethodList = 58720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolMethodList(ClassMethodNames, ClassMethodTypes); 58820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Protocols are objects containing lists of the methods implemented and 58920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // protocols adopted. 59020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ProtocolTy = llvm::StructType::get(IdTy, 59120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 59220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ProtocolList->getType(), 59320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov InstanceMethodList->getType(), 59420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassMethodList->getType(), 59520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 59620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 59720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // The isa pointer must be set to a magic number so the runtime knows it's 59820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // the correct layout. 59920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getIntToPtr( 60020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, ProtocolVersion), IdTy)); 60120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(ProtocolName, ".objc_protocol_name")); 60220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ProtocolList); 60320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(InstanceMethodList); 60420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ClassMethodList); 60520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ExistingProtocols[ProtocolName] = 60620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(MakeGlobal(ProtocolTy, Elements, 60720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_protocol"), IdTy); 60820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 60920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 6107ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbarvoid CGObjCGNU::GenerateCategory(const ObjCCategoryImplDecl *OCD) { 6117ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const char *ClassName = OCD->getClassInterface()->getName(); 6127ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const char *CategoryName = OCD->getName(); 6137ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about instance methods 6147ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> InstanceMethodSels; 6157ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodTypes; 6167ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCCategoryDecl::instmeth_iterator iter = OCD->instmeth_begin(), 6177ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OCD->instmeth_end() ; iter != endIter ; iter++) { 6187ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodSels.push_back((*iter)->getSelector()); 6197ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 6207ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getContext().getObjCEncodingForMethodDecl(*iter,TypeStr); 6217ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 6227ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 6237ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6247ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about class methods 6257ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> ClassMethodSels; 6267ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodTypes; 6277ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCCategoryDecl::classmeth_iterator iter = OCD->classmeth_begin(), 6287ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OCD->classmeth_end() ; iter != endIter ; iter++) { 6297ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodSels.push_back((*iter)->getSelector()); 6307ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 6317ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getContext().getObjCEncodingForMethodDecl(*iter,TypeStr); 6327ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 6337ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 6347ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6357ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect the names of referenced protocols 6367ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<std::string, 16> Protocols; 6377ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCInterfaceDecl *ClassDecl = OCD->getClassInterface(); 6387ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCList<ObjCProtocolDecl> &Protos =ClassDecl->getReferencedProtocols(); 6397ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCList<ObjCProtocolDecl>::iterator I = Protos.begin(), 6407ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar E = Protos.end(); I != E; ++I) 6417ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Protocols.push_back((*I)->getName()); 6427ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 64320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 64420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(CategoryName)); 64520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(ClassName)); 64620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Instance method list 64720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(GenerateMethodList( 648a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner ClassName, CategoryName, InstanceMethodSels, InstanceMethodTypes, 64920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov false), PtrTy)); 65020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Class method list 65120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(GenerateMethodList( 652a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner ClassName, CategoryName, ClassMethodSels, ClassMethodTypes, true), 65320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy)); 65420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Protocol list 65520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast( 65620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolList(Protocols), PtrTy)); 65720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Categories.push_back(llvm::ConstantExpr::getBitCast( 65820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MakeGlobal(llvm::StructType::get(PtrToInt8Ty, PtrToInt8Ty, PtrTy, 65920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, PtrTy, NULL), Elements), PtrTy)); 66020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 6617ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6627ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbarvoid CGObjCGNU::GenerateClass(const ObjCImplementationDecl *OID) { 6637ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ASTContext &Context = CGM.getContext(); 6647ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6657ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the superclass name. 6667ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCInterfaceDecl * SuperClassDecl = 6677ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar OID->getClassInterface()->getSuperClass(); 6687ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const char * SuperClassName = NULL; 6697ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar if (SuperClassDecl) { 6707ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar SuperClassName = SuperClassDecl->getName(); 6717ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 6727ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6737ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the class name 6747ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ObjCInterfaceDecl * ClassDecl = (ObjCInterfaceDecl*)OID->getClassInterface(); 6757ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const char * ClassName = ClassDecl->getName(); 6767ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6777ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the size of instances. For runtimes that support late-bound instances 6787ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // this should probably be something different (size just of instance 6797ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // varaibles in this class, not superclasses?). 6807ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar int instanceSize = 0; 6817ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const llvm::Type *ObjTy = 0; 6827ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar if (!LateBoundIVars()) { 6837ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ObjTy = CGM.getTypes().ConvertType(Context.getObjCInterfaceType(ClassDecl)); 6847ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar instanceSize = CGM.getTargetData().getABITypeSize(ObjTy); 6857ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } else { 6867ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // This is required by newer ObjC runtimes. 6877ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar assert(0 && "Late-bound instance variables not yet supported"); 6887ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 6897ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6907ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about instance variables. 6917ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> IvarNames; 6927ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> IvarTypes; 6937ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> IvarOffsets; 6947ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const llvm::StructLayout *Layout = 6957ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getTargetData().getStructLayout(cast<llvm::StructType>(ObjTy)); 6967ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ObjTy = llvm::PointerType::getUnqual(ObjTy); 6977ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCInterfaceDecl::ivar_iterator iter = ClassDecl->ivar_begin(), 6987ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = ClassDecl->ivar_end() ; iter != endIter ; iter++) { 6997ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Store the name 7007ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar IvarNames.push_back(CGM.GetAddrOfConstantCString((*iter)->getName())); 7017ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the type encoding for this ivar 7027ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 7037ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<const RecordType *, 8> EncodingRecordTypes; 7047ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Context.getObjCEncodingForType((*iter)->getType(), TypeStr, 7057ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar EncodingRecordTypes); 7067ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar IvarTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 7077ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the offset 7087ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar int offset = 7097ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar (int)Layout->getElementOffset(CGM.getTypes().getLLVMFieldNo(*iter)); 7107ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar IvarOffsets.push_back( 7117ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::ConstantInt::get(llvm::Type::Int32Ty, offset)); 7127ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7137ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7147ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about instance methods 7157ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> InstanceMethodSels; 7167ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodTypes; 7177ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCImplementationDecl::instmeth_iterator iter = OID->instmeth_begin(), 7187ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OID->instmeth_end() ; iter != endIter ; iter++) { 7197ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodSels.push_back((*iter)->getSelector()); 7207ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 7217ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Context.getObjCEncodingForMethodDecl((*iter),TypeStr); 7227ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 7237ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7247ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7257ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about class methods 7267ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> ClassMethodSels; 7277ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodTypes; 7287ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCImplementationDecl::classmeth_iterator iter = OID->classmeth_begin(), 7297ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OID->classmeth_end() ; iter != endIter ; iter++) { 7307ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodSels.push_back((*iter)->getSelector()); 7317ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 7327ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Context.getObjCEncodingForMethodDecl((*iter),TypeStr); 7337ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 7347ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7357ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect the names of referenced protocols 7367ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<std::string, 16> Protocols; 7377ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCList<ObjCProtocolDecl> &Protos =ClassDecl->getReferencedProtocols(); 7387ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCList<ObjCProtocolDecl>::iterator I = Protos.begin(), 7397ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar E = Protos.end(); I != E; ++I) 7407ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Protocols.push_back((*I)->getName()); 7417ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7427ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7437ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 74420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the superclass pointer. 74520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass; 74620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (SuperClassName) { 74720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SuperClass = MakeConstantString(SuperClassName, ".super_class_name"); 74820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } else { 74920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SuperClass = llvm::ConstantPointerNull::get( 75020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::PointerType>(PtrToInt8Ty)); 75120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 75220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Empty vector used to construct empty method lists 75320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::SmallVector<llvm::Constant*, 1> empty; 75420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate the method and instance variable lists 75520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MethodList = GenerateMethodList(ClassName, "", 756a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner InstanceMethodSels, InstanceMethodTypes, false); 75720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassMethodList = GenerateMethodList(ClassName, "", 758a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner ClassMethodSels, ClassMethodTypes, true); 75920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IvarList = GenerateIvarList(IvarNames, IvarTypes, 76020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IvarOffsets); 76120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //Generate metaclass for class methods 76220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClassStruct = GenerateClassStructure(NULLPtr, 7631565e0364b05d163640dd2b6feed43bae67df4fdChris Lattner NULLPtr, 0x2L, /*name*/"", 0, Zeros[0], GenerateIvarList( 76420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov empty, empty, empty), ClassMethodList, NULLPtr); 76520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate the class structure 76620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassStruct = GenerateClassStructure(MetaClassStruct, 767d002cc6fc5b72bf00e3b7b4571ccf0f23c789b4bChris Lattner SuperClass, 0x1L, ClassName, 0, 76820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, instanceSize), IvarList, 76920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodList, GenerateProtocolList(Protocols)); 77020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Add class structure to list to be added to the symtab later 77120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassStruct = llvm::ConstantExpr::getBitCast(ClassStruct, PtrToInt8Ty); 77220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(ClassStruct); 77320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 77420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 77520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Function *CGObjCGNU::ModuleInitFunction() { 77620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Only emit an ObjC load function if no Objective-C stuff has been called 77720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (Classes.empty() && Categories.empty() && ConstantStrings.empty() && 77820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ExistingProtocols.empty() && TypedSelectors.empty() && 7795f58b911304f7d114f929d1726a09cd1c828a5ddAnton Korobeynikov UntypedSelectors.empty()) 78020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return NULL; 7811b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman 7821b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman // Name the ObjC types to make the IR a bit easier to read 7831b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_selector", SelectorTy); 7841b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_id", IdTy); 7851b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_imp", IMPTy); 7861b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman 78720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 78820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate statics list: 78920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *StaticsArrayTy = llvm::ArrayType::get(PtrToInt8Ty, 79020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.size() + 1); 79120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.push_back(NULLPtr); 79220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString("NSConstantString", 79320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_static_class_name")); 79420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantArray::get(StaticsArrayTy, ConstantStrings)); 79520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *StaticsListTy = 79620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType::get(PtrToInt8Ty, StaticsArrayTy, NULL); 797630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::Type *StaticsListPtrTy = llvm::PointerType::getUnqual(StaticsListTy); 79820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Statics = 79920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MakeGlobal(StaticsListTy, Elements, ".objc_statics"); 8004e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner llvm::ArrayType *StaticsListArrayTy = 801630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::ArrayType::get(StaticsListPtrTy, 2); 8024e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Elements.clear(); 8034e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Elements.push_back(Statics); 804630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner Elements.push_back(llvm::Constant::getNullValue(StaticsListPtrTy)); 8054e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Statics = MakeGlobal(StaticsListArrayTy, Elements, ".objc_statics_ptr"); 80620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Statics = llvm::ConstantExpr::getBitCast(Statics, PtrTy); 80720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of classes, categories, and constant objects 80820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ClassListTy = llvm::ArrayType::get(PtrToInt8Ty, 80920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.size() + Categories.size() + 2); 810630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::StructType *SymTabTy = llvm::StructType::get(LongTy, SelectorTy, 811630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::Type::Int16Ty, 812630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::Type::Int16Ty, 813630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner ClassListTy, NULL); 81420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 81520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 81620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Pointer to an array of selectors used in this module. 81720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Selectors; 81820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (std::map<TypedSelector, llvm::GlobalAlias*>::iterator 81920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter = TypedSelectors.begin(), iterEnd = TypedSelectors.end(); 82020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd ; ++iter) { 821630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner Elements.push_back(MakeConstantString(iter->first.first, ".objc_sel_name")); 822630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner Elements.push_back(MakeConstantString(iter->first.second, 823630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner ".objc_sel_types")); 82420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 82520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 82620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 82720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (llvm::StringMap<llvm::GlobalAlias*>::iterator 82820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter = UntypedSelectors.begin(), iterEnd = UntypedSelectors.end(); 829630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner iter != iterEnd; ++iter) { 83020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 831630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner MakeConstantString(iter->getKeyData(), ".objc_sel_name")); 83220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 83320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 83420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 83520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 83620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 83720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 83820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 83920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 84020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of static selectors 84120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, Selectors.size() )); 84220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SelectorList = MakeGlobal( 84320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType::get(SelStructTy, Selectors.size()), Selectors, 84420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_selector_list"); 84520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(SelectorList, SelectorTy)); 84620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 84720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Now that all of the static selectors exist, create pointers to them. 84820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov int index = 0; 84920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (std::map<TypedSelector, llvm::GlobalAlias*>::iterator 85020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter=TypedSelectors.begin(), iterEnd =TypedSelectors.end(); 85120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd; ++iter) { 85220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Idxs[] = {Zeros[0], 85320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, index++), Zeros[0]}; 85420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalVariable *SelPtr = new llvm::GlobalVariable(SelectorTy, true, 85520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 85620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(SelectorList, Idxs, 2), 85720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_sel_ptr", &TheModule); 85820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (*iter).second->setAliasee(SelPtr); 85920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 86020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (llvm::StringMap<llvm::GlobalAlias*>::iterator 86120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter=UntypedSelectors.begin(), iterEnd = UntypedSelectors.end(); 86220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd; iter++) { 86320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Idxs[] = {Zeros[0], 86420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, index++), Zeros[0]}; 86520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalVariable *SelPtr = new llvm::GlobalVariable(SelectorTy, true, 86620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 86720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(SelectorList, Idxs, 2), 86820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_sel_ptr", &TheModule); 86920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (*iter).second->setAliasee(SelPtr); 87020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 87120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of classes defined. 87220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(llvm::Type::Int16Ty, 87320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.size())); 87420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of categories defined 87520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(llvm::Type::Int16Ty, 87620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Categories.size())); 87720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an array of classes, then categories, then static object instances 87820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.insert(Classes.end(), Categories.begin(), Categories.end()); 87920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // NULL-terminated list of static object instances (mainly constant strings) 88020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(Statics); 88120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(NULLPtr); 88220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassList = llvm::ConstantArray::get(ClassListTy, Classes); 88320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ClassList); 88420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Construct the symbol table 88520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SymTab= MakeGlobal(SymTabTy, Elements); 88620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 88720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // The symbol table is contained in a module which has some version-checking 88820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // constants 88920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType * ModuleTy = llvm::StructType::get(LongTy, LongTy, 89020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, llvm::PointerType::getUnqual(SymTabTy), NULL); 89120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 89220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Runtime version used for compatibility checking. 89320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, RuntimeVersion)); 89420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //FIXME: Should be sizeof(ModuleTy) 89520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, 16)); 89620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //FIXME: Should be the path to the file where this module was declared 89720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 89820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(SymTab); 89920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Module = MakeGlobal(ModuleTy, Elements); 90020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 90120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create the load function calling the runtime entry point with the module 90220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // structure 90320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<const llvm::Type*> VoidArgs; 90420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Function * LoadFunction = llvm::Function::Create( 90520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::FunctionType::get(llvm::Type::VoidTy, VoidArgs, false), 90620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, ".objc_load_function", 90720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov &TheModule); 90820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::BasicBlock *EntryBB = llvm::BasicBlock::Create("entry", LoadFunction); 90985e356825b291f86c6e926638914222b834b71a3Chris Lattner llvm::IRBuilder<> Builder; 91020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.SetInsertPoint(EntryBB); 91120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Register = TheModule.getOrInsertFunction("__objc_exec_class", 91220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Type::VoidTy, llvm::PointerType::getUnqual(ModuleTy), NULL); 91320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.CreateCall(Register, Module); 91420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.CreateRetVoid(); 91520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return LoadFunction; 91620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 9177ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 9187ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbarllvm::Function *CGObjCGNU::GenerateMethod(const ObjCMethodDecl *OMD) { 9197ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const llvm::Type *ReturnTy = 9207ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getTypes().ConvertReturnType(OMD->getResultType()); 9217ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCCategoryImplDecl *OCD = 9227ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(OMD->getMethodContext()); 9237ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const std::string &CategoryName = OCD ? OCD->getName() : ""; 9247ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const llvm::Type *SelfTy = llvm::PointerType::getUnqual(llvm::Type::Int32Ty); 9257ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const std::string &ClassName = OMD->getClassInterface()->getName(); 9267ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const std::string &MethodName = OMD->getSelector().getName(); 9277ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar unsigned ArgC = OMD->param_size(); 9287ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar bool isClassMethod = !OMD->isInstance(); 9297ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar bool isVarArg = OMD->isVariadic(); 9307ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 9317ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<const llvm::Type *, 16> ArgTy; 9327ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (unsigned i=0 ; i<OMD->param_size() ; i++) { 9337ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const llvm::Type *Ty = 9347ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getTypes().ConvertType(OMD->getParamDecl(i)->getType()); 9357ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar if (Ty->isFirstClassType()) 9367ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ArgTy.push_back(Ty); 9377ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar else 9387ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ArgTy.push_back(llvm::PointerType::getUnqual(Ty)); 9397ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 9407ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 941391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner std::vector<const llvm::Type*> Args; 9428fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner if (!ReturnTy->isSingleValueType() && ReturnTy != llvm::Type::VoidTy) { 94320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Args.push_back(llvm::PointerType::getUnqual(ReturnTy)); 94420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ReturnTy = llvm::Type::VoidTy; 94520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 946391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner Args.push_back(SelfTy); 947391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner Args.push_back(SelectorTy); 9487ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Args.insert(Args.end(), ArgTy.begin(), ArgTy.begin()+ArgC); 949391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 950391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::FunctionType *MethodTy = llvm::FunctionType::get(ReturnTy, 951391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner Args, 952391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner isVarArg); 95320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::string FunctionName = SymbolNameForMethod(ClassName, CategoryName, 95420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodName, isClassMethod); 95520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 956984d0b414bc76d3530b9bc55a5a55834ba76c607Gabor Greif llvm::Function *Method = llvm::Function::Create(MethodTy, 957391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::GlobalValue::InternalLinkage, 95820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov FunctionName, 959391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner &TheModule); 960391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner return Method; 961391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner} 962391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 9632abd89c039e835e84519a4cd8a7495899a70153dAnders Carlssonllvm::Function *CGObjCGNU::EnumerationMutationFunction() 9642abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson{ 9652abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson assert(0 && "No enumeration mutation function in the GNU runtime!"); 9662abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 9672abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson return 0; 9682abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson} 9692abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 970c17a4d3b16a2624a76de5d7508805534545bd3bfDaniel DunbarCodeGen::CGObjCRuntime *CodeGen::CreateGNUObjCRuntime(CodeGen::CodeGenModule &CGM){ 971dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner return new CGObjCGNU(CGM); 9720f984268b05edab2cc555a427c441baa9c252658Chris Lattner} 973