CGObjCGNU.cpp revision 49f6602707887eea1a558a1dffe0213102f887f2
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(); 12449f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar virtual llvm::Function *GetPropertyGetFunction(); 12549f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar virtual llvm::Function *GetPropertySetFunction(); 1262abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson virtual llvm::Function *EnumerationMutationFunction(); 12764d5d6c5903157c521af496479d06dc26032d718Anders Carlsson 12864d5d6c5903157c521af496479d06dc26032d718Anders Carlsson virtual void EmitTryStmt(CodeGen::CodeGenFunction &CGF, 12964d5d6c5903157c521af496479d06dc26032d718Anders Carlsson const ObjCAtTryStmt &S); 13064d5d6c5903157c521af496479d06dc26032d718Anders Carlsson virtual void EmitThrowStmt(CodeGen::CodeGenFunction &CGF, 13164d5d6c5903157c521af496479d06dc26032d718Anders Carlsson const ObjCAtThrowStmt &S); 1320f984268b05edab2cc555a427c441baa9c252658Chris Lattner}; 1330f984268b05edab2cc555a427c441baa9c252658Chris Lattner} // end anonymous namespace 1340f984268b05edab2cc555a427c441baa9c252658Chris Lattner 13520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 13620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 13720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic std::string SymbolNameForClass(const std::string &ClassName) { 13820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return ".objc_class_" + ClassName; 13920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 14020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 14120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic std::string SymbolNameForMethod(const std::string &ClassName, const 14220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::string &CategoryName, const std::string &MethodName, bool isClassMethod) 14320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov{ 14420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return "._objc_method_" + ClassName +"("+CategoryName+")"+ 14520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (isClassMethod ? "+" : "-") + MethodName; 14620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 14720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 148dce1406f1c1f572cfd61c494546572d63461c741Chris LattnerCGObjCGNU::CGObjCGNU(CodeGen::CodeGenModule &cgm) 149dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner : CGM(cgm), TheModule(CGM.getModule()) { 150dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner IntTy = CGM.getTypes().ConvertType(CGM.getContext().IntTy); 151dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner LongTy = CGM.getTypes().ConvertType(CGM.getContext().LongTy); 152dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner 15320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros[0] = llvm::ConstantInt::get(llvm::Type::Int32Ty, 0); 15420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros[1] = Zeros[0]; 15520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULLPtr = llvm::ConstantPointerNull::get( 15620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(llvm::Type::Int8Ty)); 157391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // C string type. Used in lots of places. 158391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty = 159391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::PointerType::getUnqual(llvm::Type::Int8Ty); 160391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // Get the selector Type. 16120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SelStructTy = llvm::StructType::get( 162391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty, 163391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty, 164391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner NULL); 165391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner SelectorTy = llvm::PointerType::getUnqual(SelStructTy); 166391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToIntTy = llvm::PointerType::getUnqual(IntTy); 167391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrTy = PtrToInt8Ty; 168391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 169391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // Object type 170391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::PATypeHolder OpaqueObjTy = llvm::OpaqueType::get(); 171391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Type *OpaqueIdTy = llvm::PointerType::getUnqual(OpaqueObjTy); 172391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IdTy = llvm::StructType::get(OpaqueIdTy, NULL); 173391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::cast<llvm::OpaqueType>(OpaqueObjTy.get())->refineAbstractTypeTo(IdTy); 174391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IdTy = llvm::cast<llvm::StructType>(OpaqueObjTy.get()); 175391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IdTy = llvm::PointerType::getUnqual(IdTy); 176391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 177391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // IMP type 178391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner std::vector<const llvm::Type*> IMPArgs; 179391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPArgs.push_back(IdTy); 180391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPArgs.push_back(SelectorTy); 181391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPTy = llvm::FunctionType::get(IdTy, IMPArgs, true); 18220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 18320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// This has to perform the lookup every time, since posing and related 18420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// techniques can modify the name -> class mapping. 185ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbarllvm::Value *CGObjCGNU::GetClass(llvm::IRBuilder<> &Builder, 186ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar const ObjCInterfaceDecl *OID) { 187ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar llvm::Value *ClassName = CGM.GetAddrOfConstantCString(OID->getName()); 188ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar ClassName = Builder.CreateStructGEP(ClassName, 0); 189ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar 19020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassLookupFn = 19120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TheModule.getOrInsertFunction("objc_lookup_class", IdTy, PtrToInt8Ty, 19220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 19320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return Builder.CreateCall(ClassLookupFn, ClassName); 194391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner} 195391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 1968e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner/// GetSelector - Return the pointer to the unique'd string for this selector. 19785e356825b291f86c6e926638914222b834b71a3Chris Lattnerllvm::Value *CGObjCGNU::GetSelector(llvm::IRBuilder<> &Builder, Selector Sel) { 1988e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner // FIXME: uniquing on the string is wasteful, unique on Sel instead! 1998e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner llvm::GlobalAlias *&US = UntypedSelectors[Sel.getName()]; 2008e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner if (US == 0) 2018e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner US = new llvm::GlobalAlias(llvm::PointerType::getUnqual(SelectorTy), 2028e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner llvm::GlobalValue::InternalLinkage, 2038e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner ".objc_untyped_selector_alias", 2048e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner NULL, &TheModule); 2058e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 2068e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner return Builder.CreateLoad(US); 2078e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 2088e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner} 2098e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 2105e7dcc62e4637591959f9c372f6c5258d0d263e0Chris Lattnerllvm::Constant *CGObjCGNU::MakeConstantString(const std::string &Str, 2115e7dcc62e4637591959f9c372f6c5258d0d263e0Chris Lattner const std::string &Name) { 21220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant * ConstStr = llvm::ConstantArray::get(Str); 21320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstStr = new llvm::GlobalVariable(ConstStr->getType(), true, 21420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 21520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstStr, Name, &TheModule); 21620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return llvm::ConstantExpr::getGetElementPtr(ConstStr, Zeros, 2); 21720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 21820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::MakeGlobal(const llvm::StructType *Ty, 21920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name) { 22020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *C = llvm::ConstantStruct::get(Ty, V); 22120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return new llvm::GlobalVariable(Ty, false, 22220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, C, Name, &TheModule); 22320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 22420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::MakeGlobal(const llvm::ArrayType *Ty, 22520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name) { 22620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *C = llvm::ConstantArray::get(Ty, V); 22720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return new llvm::GlobalVariable(Ty, false, 22820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, C, Name, &TheModule); 22920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 23020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 23120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate an NSConstantString object. 23220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//TODO: In case there are any crazy people still using the GNU runtime without 23320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//an OpenStep implementation, this should let them select their own class for 23420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//constant strings. 235bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbarllvm::Constant *CGObjCGNU::GenerateConstantString(const std::string &Str) { 23620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Ivars; 23720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars.push_back(NULLPtr); 23813fd7e5111032f54b538dd66d035b0ccc1f82467Chris Lattner Ivars.push_back(MakeConstantString(Str)); 239bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbar Ivars.push_back(llvm::ConstantInt::get(IntTy, Str.size())); 24020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ObjCStr = MakeGlobal( 24120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType::get(PtrToInt8Ty, PtrToInt8Ty, IntTy, NULL), 24220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars, ".objc_str"); 24320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.push_back( 24420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(ObjCStr, PtrToInt8Ty)); 24520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return ObjCStr; 24620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 24720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 24820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///Generates a message send where the super is the receiver. This is a message 24920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///send to self with special delivery semantics indicating which class's method 25020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///should be called. 2518f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCodeGen::RValue 2528f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCGObjCGNU::GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, 2537f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 2547f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 255f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar const ObjCInterfaceDecl *Class, 256f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 25719cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 25819cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs) { 259f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar const ObjCInterfaceDecl *SuperClass = Class->getSuperClass(); 2607f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar const llvm::Type *ReturnTy = CGM.getTypes().ConvertType(ResultType); 26120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // TODO: This should be cached, not looked up every time. 2628f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *ReceiverClass = GetClass(CGF.Builder, SuperClass); 2637f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar llvm::Value *cmd = GetSelector(CGF.Builder, Sel); 26420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<const llvm::Type*> impArgTypes; 26520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov impArgTypes.push_back(Receiver->getType()); 26620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov impArgTypes.push_back(SelectorTy); 26720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 26820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Avoid an explicit cast on the IMP by getting a version that has the right 26920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // return type. 27020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::FunctionType *impType = llvm::FunctionType::get(ReturnTy, impArgTypes, 27120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov true); 27220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Construct the structure used to look up the IMP 27320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCSuperTy = llvm::StructType::get(Receiver->getType(), 27420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IdTy, NULL); 2758f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *ObjCSuper = CGF.Builder.CreateAlloca(ObjCSuperTy); 2761e692ace08959399794363e77499b73da5494af9Eli Friedman // FIXME: volatility 2778f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar CGF.Builder.CreateStore(Receiver, CGF.Builder.CreateStructGEP(ObjCSuper, 0)); 2788f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar CGF.Builder.CreateStore(ReceiverClass, CGF.Builder.CreateStructGEP(ObjCSuper, 1)); 27920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 28020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the IMP 28120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *lookupFunction = 28220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TheModule.getOrInsertFunction("objc_msg_lookup_super", 28320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(impType), 28420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(ObjCSuperTy), 28520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SelectorTy, NULL); 28620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *lookupArgs[] = {ObjCSuper, cmd}; 2878f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *imp = CGF.Builder.CreateCall(lookupFunction, lookupArgs, 28820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov lookupArgs+2); 28920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 29020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Call the method 29119cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CallArgList ActualArgs; 29246f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar ActualArgs.push_back(std::make_pair(RValue::get(Receiver), 29319cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CGF.getContext().getObjCIdType())); 29446f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar ActualArgs.push_back(std::make_pair(RValue::get(cmd), 29519cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CGF.getContext().getObjCSelType())); 29619cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar ActualArgs.insert(ActualArgs.end(), CallArgs.begin(), CallArgs.end()); 2977f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar return CGF.EmitCall(imp, ResultType, ActualArgs); 29820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 29920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 30020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate code for a message send expression. 3018f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCodeGen::RValue 3028f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCGObjCGNU::GenerateMessageSend(CodeGen::CodeGenFunction &CGF, 3037f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 3047f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 305f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 30619cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 30719cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs) { 3087f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar const llvm::Type *ReturnTy = CGM.getTypes().ConvertType(ResultType); 3097f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar llvm::Value *cmd = GetSelector(CGF.Builder, Sel); 3100f984268b05edab2cc555a427c441baa9c252658Chris Lattner 3110f984268b05edab2cc555a427c441baa9c252658Chris Lattner // Look up the method implementation. 3120f984268b05edab2cc555a427c441baa9c252658Chris Lattner std::vector<const llvm::Type*> impArgTypes; 31320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::Type *RetTy; 31420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //TODO: Revisit this when LLVM supports aggregate return types. 31520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (ReturnTy->isSingleValueType() && ReturnTy != llvm::Type::VoidTy) { 31620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov RetTy = ReturnTy; 31720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } else { 31820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // For struct returns allocate the space in the caller and pass it up to 31920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // the sender. 32020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov RetTy = llvm::Type::VoidTy; 32120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov impArgTypes.push_back(llvm::PointerType::getUnqual(ReturnTy)); 32220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 3230f984268b05edab2cc555a427c441baa9c252658Chris Lattner impArgTypes.push_back(Receiver->getType()); 324391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner impArgTypes.push_back(SelectorTy); 3250f984268b05edab2cc555a427c441baa9c252658Chris Lattner 3260f984268b05edab2cc555a427c441baa9c252658Chris Lattner // Avoid an explicit cast on the IMP by getting a version that has the right 3270f984268b05edab2cc555a427c441baa9c252658Chris Lattner // return type. 32820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::FunctionType *impType = llvm::FunctionType::get(RetTy, impArgTypes, 3290f984268b05edab2cc555a427c441baa9c252658Chris Lattner true); 3300f984268b05edab2cc555a427c441baa9c252658Chris Lattner 3310f984268b05edab2cc555a427c441baa9c252658Chris Lattner llvm::Constant *lookupFunction = 3320f984268b05edab2cc555a427c441baa9c252658Chris Lattner TheModule.getOrInsertFunction("objc_msg_lookup", 333391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::PointerType::getUnqual(impType), 334391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner Receiver->getType(), SelectorTy, NULL); 3358f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *imp = CGF.Builder.CreateCall2(lookupFunction, Receiver, cmd); 3363eae03e7d165f20a863a9a4d7122ba2a691ab16dChris Lattner 3373eae03e7d165f20a863a9a4d7122ba2a691ab16dChris Lattner // Call the method. 33819cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CallArgList ActualArgs; 33946f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar ActualArgs.push_back(std::make_pair(RValue::get(Receiver), 34019cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CGF.getContext().getObjCIdType())); 34146f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar ActualArgs.push_back(std::make_pair(RValue::get(cmd), 34219cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CGF.getContext().getObjCSelType())); 34319cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar ActualArgs.insert(ActualArgs.end(), CallArgs.begin(), CallArgs.end()); 3447f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar return CGF.EmitCall(imp, ResultType, ActualArgs); 34520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 34620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 34720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generates a MethodList. Used in construction of a objc_class and 34820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// objc_category structures. 34920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateMethodList(const std::string &ClassName, 350a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner const std::string &CategoryName, 351a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner const llvm::SmallVectorImpl<Selector> &MethodSels, 35220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes, 35320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov bool isClassMethodList) { 35420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 35520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodTy = llvm::StructType::get( 35620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Really a selector, but the runtime creates it us. 35720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Method types 35820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(IMPTy), //Method pointer 35920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 36020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Methods; 36120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 36220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = MethodTypes.size(); i < e; ++i) { 36320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 3646143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar llvm::Constant *C = CGM.GetAddrOfConstantCString(MethodSels[i].getName()); 365a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner Elements.push_back(llvm::ConstantExpr::getGetElementPtr(C, Zeros, 2)); 36620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 36720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(MethodTypes[i], Zeros, 2)); 36820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Method = 36920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TheModule.getFunction(SymbolNameForMethod(ClassName, CategoryName, 370a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner MethodSels[i].getName(), 371550b8db03c0bb1b006d2ff63d4febda3db16002fChris Lattner isClassMethodList)); 37220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Method = llvm::ConstantExpr::getBitCast(Method, 37320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(IMPTy)); 37420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Method); 37520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantStruct::get(ObjCMethodTy, Elements)); 37620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 37720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 37820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of method structures 37920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCMethodArrayTy = llvm::ArrayType::get(ObjCMethodTy, 380a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner MethodSels.size()); 38120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MethodArray = llvm::ConstantArray::get(ObjCMethodArrayTy, 382fba676396703e87a5034e5f308aa30a633468f66Chris Lattner Methods); 38320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 38420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Structure containing list pointer, array and array count 38520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::SmallVector<const llvm::Type*, 16> ObjCMethodListFields; 38620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PATypeHolder OpaqueNextTy = llvm::OpaqueType::get(); 38720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Type *NextPtrTy = llvm::PointerType::getUnqual(OpaqueNextTy); 38820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodListTy = llvm::StructType::get(NextPtrTy, 38920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, 39020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCMethodArrayTy, 39120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 39220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Refine next pointer type to concrete type 39320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::OpaqueType>( 39420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov OpaqueNextTy.get())->refineAbstractTypeTo(ObjCMethodListTy); 39520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCMethodListTy = llvm::cast<llvm::StructType>(OpaqueNextTy.get()); 39620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 39720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.clear(); 39820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantPointerNull::get( 39920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(ObjCMethodListTy))); 40020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantInt::get(llvm::Type::Int32Ty, 40120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodTypes.size())); 40220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(MethodArray); 40320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 40420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 40520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCMethodListTy, Methods, ".objc_method_list"); 40620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 40720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 40820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generates an IvarList. Used in construction of a objc_class. 40920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateIvarList( 41020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarNames, 41120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarTypes, 41220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarOffsets) { 41320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 41420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCIvarTy = llvm::StructType::get( 41520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 41620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 41720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, 41820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 41920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Ivars; 42020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 42120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = IvarNames.size() ; i < e ; i++) { 42220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 42320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(IvarNames[i], 42420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 42520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(IvarTypes[i], 42620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 42720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(IvarOffsets[i]); 42820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars.push_back(llvm::ConstantStruct::get(ObjCIvarTy, Elements)); 42920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 43020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 43120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of method structures 43220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCIvarArrayTy = llvm::ArrayType::get(ObjCIvarTy, 43320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IvarNames.size()); 43420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 43520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 43620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 43720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get( 43820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::IntegerType>(IntTy), (int)IvarNames.size())); 43920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantArray::get(ObjCIvarArrayTy, Ivars)); 44020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Structure containing array and array count 44120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCIvarListTy = llvm::StructType::get(IntTy, 44220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCIvarArrayTy, 44320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 44420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 44520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 44620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCIvarListTy, Elements, ".objc_ivar_list"); 4470f984268b05edab2cc555a427c441baa9c252658Chris Lattner} 4480f984268b05edab2cc555a427c441baa9c252658Chris Lattner 44920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate a class structure 45020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateClassStructure( 45120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClass, 45220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass, 45320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov unsigned info, 454d002cc6fc5b72bf00e3b7b4571ccf0f23c789b4bChris Lattner const char *Name, 45520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Version, 45620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceSize, 45720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IVars, 45820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Methods, 45920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Protocols) { 46020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Set up the class structure 46120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Note: Several of these are char*s when they should be ids. This is 46220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // because the runtime performs this translation on load. 46320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ClassTy = llvm::StructType::get( 46420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // class_pointer 46520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // super_class 46620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // name 46720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // version 46820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // info 46920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // instance_size 47020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IVars->getType(), // ivars 47120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods->getType(), // methods 47220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // These are all filled in by the runtime, so we pretend 47320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // dtable 47420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // subclass_list 47520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // sibling_class 47620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // protocols 47720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // gc_object_type 47820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 47920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Zero = llvm::ConstantInt::get(LongTy, 0); 48020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *NullP = 48120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantPointerNull::get(llvm::cast<llvm::PointerType>(PtrTy)); 48220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Fill in the structure 48320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 48420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(MetaClass, PtrToInt8Ty)); 48520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(SuperClass); 486d002cc6fc5b72bf00e3b7b4571ccf0f23c789b4bChris Lattner Elements.push_back(MakeConstantString(Name, ".class_name")); 48720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Zero); 48820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, info)); 48920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(InstanceSize); 49020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(IVars); 49120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Methods); 49220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 49320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 49420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 49520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(Protocols, PtrTy)); 49620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 49720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 4981565e0364b05d163640dd2b6feed43bae67df4fdChris Lattner return MakeGlobal(ClassTy, Elements, SymbolNameForClass(Name)); 49920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 50020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 50120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateProtocolMethodList( 50220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodNames, 50320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes) { 50420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 50520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodDescTy = llvm::StructType::get( 50620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Really a selector, but the runtime does the casting for us. 50720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 50820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 50920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Methods; 51020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 51120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = MethodTypes.size() ; i < e ; i++) { 51220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 51320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(MethodNames[i], 51420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 51520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 51620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(MethodTypes[i], Zeros, 2)); 51720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantStruct::get(ObjCMethodDescTy, Elements)); 51820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 51920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCMethodArrayTy = llvm::ArrayType::get(ObjCMethodDescTy, 52020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodNames.size()); 52120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Array = llvm::ConstantArray::get(ObjCMethodArrayTy, Methods); 52220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodDescListTy = llvm::StructType::get( 52320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, ObjCMethodArrayTy, NULL); 52420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.clear(); 52520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantInt::get(IntTy, MethodNames.size())); 52620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(Array); 52720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCMethodDescListTy, Methods, ".objc_method_list"); 52820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 52920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// Create the protocol list structure used in classes, categories and so on 53020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateProtocolList( 53120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols) { 53220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ProtocolArrayTy = llvm::ArrayType::get(PtrToInt8Ty, 53320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Protocols.size()); 53420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ProtocolListTy = llvm::StructType::get( 53520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, //Should be a recurisve pointer, but it's always NULL here. 53620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy,//FIXME: Should be size_t 53720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ProtocolArrayTy, 53820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 53920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 54020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (const std::string *iter = Protocols.begin(), *endIter = Protocols.end(); 54120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != endIter ; iter++) { 54220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Ptr = 54320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(ExistingProtocols[*iter], PtrToInt8Ty); 54420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Ptr); 54520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 54620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant * ProtocolArray = llvm::ConstantArray::get(ProtocolArrayTy, 54720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements); 54820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 54920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 55020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get( 55120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::IntegerType>(LongTy), Protocols.size())); 55220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ProtocolArray); 55320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ProtocolListTy, Elements, ".objc_protocol_list"); 55420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 55520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 556af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbarllvm::Value *CGObjCGNU::GenerateProtocolRef(llvm::IRBuilder<> &Builder, 557af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar const ObjCProtocolDecl *PD) { 558af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar return ExistingProtocols[PD->getName()]; 55920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 56020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 561af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbarvoid CGObjCGNU::GenerateProtocol(const ObjCProtocolDecl *PD) { 562af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar ASTContext &Context = CGM.getContext(); 563af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar const char *ProtocolName = PD->getName(); 564af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<std::string, 16> Protocols; 565af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar for (ObjCProtocolDecl::protocol_iterator PI = PD->protocol_begin(), 566af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar E = PD->protocol_end(); PI != E; ++PI) 567af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar Protocols.push_back((*PI)->getName()); 568af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodNames; 569af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodTypes; 570af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar for (ObjCProtocolDecl::instmeth_iterator iter = PD->instmeth_begin(), 571af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar E = PD->instmeth_end(); iter != E; iter++) { 572af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar std::string TypeStr; 573af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar Context.getObjCEncodingForMethodDecl(*iter, TypeStr); 574af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar InstanceMethodNames.push_back( 5756143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar CGM.GetAddrOfConstantCString((*iter)->getSelector().getName())); 5766143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar InstanceMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 577af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar } 578af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar // Collect information about class methods: 579af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodNames; 580af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodTypes; 581af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar for (ObjCProtocolDecl::classmeth_iterator iter = PD->classmeth_begin(), 582af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar endIter = PD->classmeth_end() ; iter != endIter ; iter++) { 583af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar std::string TypeStr; 584af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar Context.getObjCEncodingForMethodDecl((*iter),TypeStr); 585af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar ClassMethodNames.push_back( 5866143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar CGM.GetAddrOfConstantCString((*iter)->getSelector().getName())); 5876143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar ClassMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 588af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar } 58920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 59020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ProtocolList = GenerateProtocolList(Protocols); 59120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceMethodList = 59220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolMethodList(InstanceMethodNames, InstanceMethodTypes); 59320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassMethodList = 59420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolMethodList(ClassMethodNames, ClassMethodTypes); 59520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Protocols are objects containing lists of the methods implemented and 59620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // protocols adopted. 59720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ProtocolTy = llvm::StructType::get(IdTy, 59820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 59920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ProtocolList->getType(), 60020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov InstanceMethodList->getType(), 60120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassMethodList->getType(), 60220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 60320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 60420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // The isa pointer must be set to a magic number so the runtime knows it's 60520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // the correct layout. 60620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getIntToPtr( 60720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, ProtocolVersion), IdTy)); 60820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(ProtocolName, ".objc_protocol_name")); 60920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ProtocolList); 61020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(InstanceMethodList); 61120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ClassMethodList); 61220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ExistingProtocols[ProtocolName] = 61320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(MakeGlobal(ProtocolTy, Elements, 61420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_protocol"), IdTy); 61520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 61620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 6177ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbarvoid CGObjCGNU::GenerateCategory(const ObjCCategoryImplDecl *OCD) { 6187ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const char *ClassName = OCD->getClassInterface()->getName(); 6197ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const char *CategoryName = OCD->getName(); 6207ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about instance methods 6217ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> InstanceMethodSels; 6227ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodTypes; 6237ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCCategoryDecl::instmeth_iterator iter = OCD->instmeth_begin(), 6247ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OCD->instmeth_end() ; iter != endIter ; iter++) { 6257ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodSels.push_back((*iter)->getSelector()); 6267ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 6277ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getContext().getObjCEncodingForMethodDecl(*iter,TypeStr); 6287ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 6297ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 6307ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6317ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about class methods 6327ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> ClassMethodSels; 6337ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodTypes; 6347ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCCategoryDecl::classmeth_iterator iter = OCD->classmeth_begin(), 6357ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OCD->classmeth_end() ; iter != endIter ; iter++) { 6367ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodSels.push_back((*iter)->getSelector()); 6377ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 6387ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getContext().getObjCEncodingForMethodDecl(*iter,TypeStr); 6397ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 6407ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 6417ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6427ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect the names of referenced protocols 6437ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<std::string, 16> Protocols; 6447ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCInterfaceDecl *ClassDecl = OCD->getClassInterface(); 6457ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCList<ObjCProtocolDecl> &Protos =ClassDecl->getReferencedProtocols(); 6467ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCList<ObjCProtocolDecl>::iterator I = Protos.begin(), 6477ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar E = Protos.end(); I != E; ++I) 6487ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Protocols.push_back((*I)->getName()); 6497ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 65020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 65120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(CategoryName)); 65220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(ClassName)); 65320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Instance method list 65420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(GenerateMethodList( 655a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner ClassName, CategoryName, InstanceMethodSels, InstanceMethodTypes, 65620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov false), PtrTy)); 65720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Class method list 65820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(GenerateMethodList( 659a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner ClassName, CategoryName, ClassMethodSels, ClassMethodTypes, true), 66020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy)); 66120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Protocol list 66220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast( 66320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolList(Protocols), PtrTy)); 66420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Categories.push_back(llvm::ConstantExpr::getBitCast( 66520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MakeGlobal(llvm::StructType::get(PtrToInt8Ty, PtrToInt8Ty, PtrTy, 66620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, PtrTy, NULL), Elements), PtrTy)); 66720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 6687ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6697ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbarvoid CGObjCGNU::GenerateClass(const ObjCImplementationDecl *OID) { 6707ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ASTContext &Context = CGM.getContext(); 6717ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6727ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the superclass name. 6737ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCInterfaceDecl * SuperClassDecl = 6747ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar OID->getClassInterface()->getSuperClass(); 6757ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const char * SuperClassName = NULL; 6767ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar if (SuperClassDecl) { 6777ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar SuperClassName = SuperClassDecl->getName(); 6787ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 6797ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6807ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the class name 6817ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ObjCInterfaceDecl * ClassDecl = (ObjCInterfaceDecl*)OID->getClassInterface(); 6827ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const char * ClassName = ClassDecl->getName(); 6837ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6847ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the size of instances. For runtimes that support late-bound instances 6857ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // this should probably be something different (size just of instance 6867ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // varaibles in this class, not superclasses?). 6877ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar int instanceSize = 0; 6887ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const llvm::Type *ObjTy = 0; 6897ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar if (!LateBoundIVars()) { 6907ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ObjTy = CGM.getTypes().ConvertType(Context.getObjCInterfaceType(ClassDecl)); 6917ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar instanceSize = CGM.getTargetData().getABITypeSize(ObjTy); 6927ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } else { 6937ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // This is required by newer ObjC runtimes. 6947ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar assert(0 && "Late-bound instance variables not yet supported"); 6957ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 6967ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6977ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about instance variables. 6987ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> IvarNames; 6997ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> IvarTypes; 7007ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> IvarOffsets; 7017ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const llvm::StructLayout *Layout = 7027ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getTargetData().getStructLayout(cast<llvm::StructType>(ObjTy)); 7037ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ObjTy = llvm::PointerType::getUnqual(ObjTy); 7047ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCInterfaceDecl::ivar_iterator iter = ClassDecl->ivar_begin(), 7057ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = ClassDecl->ivar_end() ; iter != endIter ; iter++) { 7067ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Store the name 7077ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar IvarNames.push_back(CGM.GetAddrOfConstantCString((*iter)->getName())); 7087ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the type encoding for this ivar 7097ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 7107ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<const RecordType *, 8> EncodingRecordTypes; 7117ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Context.getObjCEncodingForType((*iter)->getType(), TypeStr, 7127ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar EncodingRecordTypes); 7137ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar IvarTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 7147ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the offset 7157ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar int offset = 7167ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar (int)Layout->getElementOffset(CGM.getTypes().getLLVMFieldNo(*iter)); 7177ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar IvarOffsets.push_back( 7187ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::ConstantInt::get(llvm::Type::Int32Ty, offset)); 7197ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7207ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7217ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about instance methods 7227ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> InstanceMethodSels; 7237ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodTypes; 7247ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCImplementationDecl::instmeth_iterator iter = OID->instmeth_begin(), 7257ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OID->instmeth_end() ; iter != endIter ; iter++) { 7267ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodSels.push_back((*iter)->getSelector()); 7277ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 7287ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Context.getObjCEncodingForMethodDecl((*iter),TypeStr); 7297ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 7307ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7317ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7327ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about class methods 7337ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> ClassMethodSels; 7347ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodTypes; 7357ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCImplementationDecl::classmeth_iterator iter = OID->classmeth_begin(), 7367ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OID->classmeth_end() ; iter != endIter ; iter++) { 7377ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodSels.push_back((*iter)->getSelector()); 7387ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 7397ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Context.getObjCEncodingForMethodDecl((*iter),TypeStr); 7407ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 7417ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7427ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect the names of referenced protocols 7437ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<std::string, 16> Protocols; 7447ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCList<ObjCProtocolDecl> &Protos =ClassDecl->getReferencedProtocols(); 7457ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCList<ObjCProtocolDecl>::iterator I = Protos.begin(), 7467ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar E = Protos.end(); I != E; ++I) 7477ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Protocols.push_back((*I)->getName()); 7487ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7497ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7507ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 75120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the superclass pointer. 75220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass; 75320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (SuperClassName) { 75420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SuperClass = MakeConstantString(SuperClassName, ".super_class_name"); 75520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } else { 75620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SuperClass = llvm::ConstantPointerNull::get( 75720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::PointerType>(PtrToInt8Ty)); 75820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 75920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Empty vector used to construct empty method lists 76020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::SmallVector<llvm::Constant*, 1> empty; 76120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate the method and instance variable lists 76220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MethodList = GenerateMethodList(ClassName, "", 763a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner InstanceMethodSels, InstanceMethodTypes, false); 76420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassMethodList = GenerateMethodList(ClassName, "", 765a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner ClassMethodSels, ClassMethodTypes, true); 76620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IvarList = GenerateIvarList(IvarNames, IvarTypes, 76720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IvarOffsets); 76820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //Generate metaclass for class methods 76920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClassStruct = GenerateClassStructure(NULLPtr, 7701565e0364b05d163640dd2b6feed43bae67df4fdChris Lattner NULLPtr, 0x2L, /*name*/"", 0, Zeros[0], GenerateIvarList( 77120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov empty, empty, empty), ClassMethodList, NULLPtr); 77220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate the class structure 77320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassStruct = GenerateClassStructure(MetaClassStruct, 774d002cc6fc5b72bf00e3b7b4571ccf0f23c789b4bChris Lattner SuperClass, 0x1L, ClassName, 0, 77520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, instanceSize), IvarList, 77620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodList, GenerateProtocolList(Protocols)); 77720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Add class structure to list to be added to the symtab later 77820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassStruct = llvm::ConstantExpr::getBitCast(ClassStruct, PtrToInt8Ty); 77920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(ClassStruct); 78020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 78120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 78220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Function *CGObjCGNU::ModuleInitFunction() { 78320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Only emit an ObjC load function if no Objective-C stuff has been called 78420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (Classes.empty() && Categories.empty() && ConstantStrings.empty() && 78520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ExistingProtocols.empty() && TypedSelectors.empty() && 7865f58b911304f7d114f929d1726a09cd1c828a5ddAnton Korobeynikov UntypedSelectors.empty()) 78720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return NULL; 7881b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman 7891b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman // Name the ObjC types to make the IR a bit easier to read 7901b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_selector", SelectorTy); 7911b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_id", IdTy); 7921b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_imp", IMPTy); 7931b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman 79420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 79520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate statics list: 79620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *StaticsArrayTy = llvm::ArrayType::get(PtrToInt8Ty, 79720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.size() + 1); 79820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.push_back(NULLPtr); 79920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString("NSConstantString", 80020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_static_class_name")); 80120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantArray::get(StaticsArrayTy, ConstantStrings)); 80220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *StaticsListTy = 80320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType::get(PtrToInt8Ty, StaticsArrayTy, NULL); 804630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::Type *StaticsListPtrTy = llvm::PointerType::getUnqual(StaticsListTy); 80520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Statics = 80620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MakeGlobal(StaticsListTy, Elements, ".objc_statics"); 8074e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner llvm::ArrayType *StaticsListArrayTy = 808630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::ArrayType::get(StaticsListPtrTy, 2); 8094e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Elements.clear(); 8104e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Elements.push_back(Statics); 811630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner Elements.push_back(llvm::Constant::getNullValue(StaticsListPtrTy)); 8124e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Statics = MakeGlobal(StaticsListArrayTy, Elements, ".objc_statics_ptr"); 81320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Statics = llvm::ConstantExpr::getBitCast(Statics, PtrTy); 81420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of classes, categories, and constant objects 81520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ClassListTy = llvm::ArrayType::get(PtrToInt8Ty, 81620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.size() + Categories.size() + 2); 817630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::StructType *SymTabTy = llvm::StructType::get(LongTy, SelectorTy, 818630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::Type::Int16Ty, 819630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::Type::Int16Ty, 820630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner ClassListTy, NULL); 82120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 82220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 82320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Pointer to an array of selectors used in this module. 82420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Selectors; 82520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (std::map<TypedSelector, llvm::GlobalAlias*>::iterator 82620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter = TypedSelectors.begin(), iterEnd = TypedSelectors.end(); 82720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd ; ++iter) { 828630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner Elements.push_back(MakeConstantString(iter->first.first, ".objc_sel_name")); 829630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner Elements.push_back(MakeConstantString(iter->first.second, 830630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner ".objc_sel_types")); 83120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 83220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 83320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 83420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (llvm::StringMap<llvm::GlobalAlias*>::iterator 83520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter = UntypedSelectors.begin(), iterEnd = UntypedSelectors.end(); 836630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner iter != iterEnd; ++iter) { 83720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 838630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner MakeConstantString(iter->getKeyData(), ".objc_sel_name")); 83920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 84020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 84120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 84220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 84320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 84420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 84520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 84620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 84720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of static selectors 84820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, Selectors.size() )); 84920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SelectorList = MakeGlobal( 85020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType::get(SelStructTy, Selectors.size()), Selectors, 85120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_selector_list"); 85220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(SelectorList, SelectorTy)); 85320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 85420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Now that all of the static selectors exist, create pointers to them. 85520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov int index = 0; 85620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (std::map<TypedSelector, llvm::GlobalAlias*>::iterator 85720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter=TypedSelectors.begin(), iterEnd =TypedSelectors.end(); 85820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd; ++iter) { 85920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Idxs[] = {Zeros[0], 86020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, index++), Zeros[0]}; 86120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalVariable *SelPtr = new llvm::GlobalVariable(SelectorTy, true, 86220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 86320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(SelectorList, Idxs, 2), 86420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_sel_ptr", &TheModule); 86520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (*iter).second->setAliasee(SelPtr); 86620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 86720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (llvm::StringMap<llvm::GlobalAlias*>::iterator 86820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter=UntypedSelectors.begin(), iterEnd = UntypedSelectors.end(); 86920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd; iter++) { 87020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Idxs[] = {Zeros[0], 87120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, index++), Zeros[0]}; 87220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalVariable *SelPtr = new llvm::GlobalVariable(SelectorTy, true, 87320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 87420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(SelectorList, Idxs, 2), 87520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_sel_ptr", &TheModule); 87620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (*iter).second->setAliasee(SelPtr); 87720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 87820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of classes defined. 87920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(llvm::Type::Int16Ty, 88020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.size())); 88120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of categories defined 88220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(llvm::Type::Int16Ty, 88320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Categories.size())); 88420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an array of classes, then categories, then static object instances 88520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.insert(Classes.end(), Categories.begin(), Categories.end()); 88620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // NULL-terminated list of static object instances (mainly constant strings) 88720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(Statics); 88820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(NULLPtr); 88920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassList = llvm::ConstantArray::get(ClassListTy, Classes); 89020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ClassList); 89120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Construct the symbol table 89220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SymTab= MakeGlobal(SymTabTy, Elements); 89320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 89420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // The symbol table is contained in a module which has some version-checking 89520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // constants 89620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType * ModuleTy = llvm::StructType::get(LongTy, LongTy, 89720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, llvm::PointerType::getUnqual(SymTabTy), NULL); 89820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 89920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Runtime version used for compatibility checking. 90020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, RuntimeVersion)); 90120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //FIXME: Should be sizeof(ModuleTy) 90220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, 16)); 90320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //FIXME: Should be the path to the file where this module was declared 90420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 90520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(SymTab); 90620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Module = MakeGlobal(ModuleTy, Elements); 90720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 90820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create the load function calling the runtime entry point with the module 90920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // structure 91020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<const llvm::Type*> VoidArgs; 91120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Function * LoadFunction = llvm::Function::Create( 91220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::FunctionType::get(llvm::Type::VoidTy, VoidArgs, false), 91320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, ".objc_load_function", 91420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov &TheModule); 91520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::BasicBlock *EntryBB = llvm::BasicBlock::Create("entry", LoadFunction); 91685e356825b291f86c6e926638914222b834b71a3Chris Lattner llvm::IRBuilder<> Builder; 91720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.SetInsertPoint(EntryBB); 91820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Register = TheModule.getOrInsertFunction("__objc_exec_class", 91920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Type::VoidTy, llvm::PointerType::getUnqual(ModuleTy), NULL); 92020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.CreateCall(Register, Module); 92120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.CreateRetVoid(); 92220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return LoadFunction; 92320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 9247ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 9257ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbarllvm::Function *CGObjCGNU::GenerateMethod(const ObjCMethodDecl *OMD) { 9267ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCCategoryImplDecl *OCD = 9277ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(OMD->getMethodContext()); 9287ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const std::string &CategoryName = OCD ? OCD->getName() : ""; 9297ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const std::string &ClassName = OMD->getClassInterface()->getName(); 9307ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const std::string &MethodName = OMD->getSelector().getName(); 9317ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar bool isClassMethod = !OMD->isInstance(); 932391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 93345c25ba11cbf8c9a461def5b03f6ee9481e06769Daniel Dunbar const llvm::FunctionType *MethodTy = 93445c25ba11cbf8c9a461def5b03f6ee9481e06769Daniel Dunbar CGM.getTypes().GetFunctionType(CGFunctionInfo(OMD, CGM.getContext())); 93520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::string FunctionName = SymbolNameForMethod(ClassName, CategoryName, 93620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodName, isClassMethod); 93720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 938984d0b414bc76d3530b9bc55a5a55834ba76c607Gabor Greif llvm::Function *Method = llvm::Function::Create(MethodTy, 939391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::GlobalValue::InternalLinkage, 94020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov FunctionName, 941391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner &TheModule); 942391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner return Method; 943391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner} 944391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 94549f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbarllvm::Function *CGObjCGNU::GetPropertyGetFunction() { 94649f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar return 0; 94749f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar} 94849f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar 94949f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbarllvm::Function *CGObjCGNU::GetPropertySetFunction() { 95049f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar return 0; 95149f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar} 95249f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar 95349f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbarllvm::Function *CGObjCGNU::EnumerationMutationFunction() { 9542abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson return 0; 9552abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson} 9562abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 95764d5d6c5903157c521af496479d06dc26032d718Anders Carlssonvoid CGObjCGNU::EmitTryStmt(CodeGen::CodeGenFunction &CGF, 95849f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar const ObjCAtTryStmt &S) { 95964d5d6c5903157c521af496479d06dc26032d718Anders Carlsson CGF.ErrorUnsupported(&S, "@try statement"); 96064d5d6c5903157c521af496479d06dc26032d718Anders Carlsson} 96164d5d6c5903157c521af496479d06dc26032d718Anders Carlsson 96264d5d6c5903157c521af496479d06dc26032d718Anders Carlssonvoid CGObjCGNU::EmitThrowStmt(CodeGen::CodeGenFunction &CGF, 96349f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar const ObjCAtThrowStmt &S) { 96464d5d6c5903157c521af496479d06dc26032d718Anders Carlsson CGF.ErrorUnsupported(&S, "@throw statement"); 96564d5d6c5903157c521af496479d06dc26032d718Anders Carlsson} 96664d5d6c5903157c521af496479d06dc26032d718Anders Carlsson 967c17a4d3b16a2624a76de5d7508805534545bd3bfDaniel DunbarCodeGen::CGObjCRuntime *CodeGen::CreateGNUObjCRuntime(CodeGen::CodeGenModule &CGM){ 968dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner return new CGObjCGNU(CGM); 9690f984268b05edab2cc555a427c441baa9c252658Chris Lattner} 970