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Meta-data for nonfragile-abi's categories 

llvm-svn: 63020
This commit is contained in:
Fariborz Jahanian 2009-01-26 18:32:24 +00:00
parent cde6e757cf
commit 0c8d060715
1 changed files with 51 additions and 2 deletions
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53
clang/lib/CodeGen/CGObjCMac.cpp
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@ -590,8 +590,7 @@ public:
const ObjCContainerDecl *CD=0)
{ return 0; }
virtual void GenerateCategory(const ObjCCategoryImplDecl *CMD)
{ return; }
virtual void GenerateCategory(const ObjCCategoryImplDecl *CMD);
virtual void GenerateClass(const ObjCImplementationDecl *ClassDecl);
@ -3341,6 +3340,56 @@ void CGObjCNonFragileABIMac::GenerateClass(const ObjCImplementationDecl *ID) {
BuildClassMetaData(TClassName, MetaTClass, SuperClassGV, CLASS_RO_GV);
}
/// GenerateCategory - Build metadata for a category implementation.
/// struct _category_t {
/// const char * const name;
/// struct _class_t *const cls;
/// const struct _method_list_t * const instance_methods;
/// const struct _method_list_t * const class_methods;
/// const struct _protocol_list_t * const protocols;
/// const struct _prop_list_t * const properties;
/// }
///
void CGObjCNonFragileABIMac::GenerateCategory(const ObjCCategoryImplDecl *OCD)
{
const ObjCInterfaceDecl *Interface = OCD->getClassInterface();
std::string ExtCatName("\01l_OBJC_$_CATEGORY_" + Interface->getNameAsString()+
"_$_" + OCD->getNameAsString());
std::string ExtClassName("\01_OBJC_CLASS_$_" + Interface->getNameAsString());
std::vector<llvm::Constant*> Values(6);
Values[0] = GetClassName(OCD->getIdentifier());
// meta-class entry symbol
llvm::GlobalVariable *ClassGV =
CGM.getModule().getGlobalVariable(ExtClassName);
if (!ClassGV)
ClassGV =
new llvm::GlobalVariable(ObjCTypes.ClassnfABITy, false,
llvm::GlobalValue::ExternalLinkage,
0,
ExtClassName,
&CGM.getModule());
UsedGlobals.push_back(ClassGV);
Values[1] = ClassGV;
Values[2] = llvm::Constant::getNullValue(ObjCTypes.MethodListnfABIPtrTy);
Values[3] = llvm::Constant::getNullValue(ObjCTypes.MethodListnfABIPtrTy);
Values[4] = llvm::Constant::getNullValue(ObjCTypes.ProtocolListnfABIPtrTy);
Values[5] = llvm::Constant::getNullValue(ObjCTypes.PropertyListPtrTy);
llvm::Constant *Init =
llvm::ConstantStruct::get(ObjCTypes.CategorynfABITy,
Values);
llvm::GlobalVariable *GCATV
= new llvm::GlobalVariable(ObjCTypes.CategorynfABITy,
false,
llvm::GlobalValue::InternalLinkage,
Init,
ExtCatName,
&CGM.getModule());
GCATV->setSection(".section __DATA,__data,regular,no_dead_strip");
UsedGlobals.push_back(GCATV);
DefinedCategories.push_back(GCATV);
}
/* *** */
CodeGen::CGObjCRuntime *