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Generate list of implemented classes and categories in their 

own sections (related to objc2 nonfragile abi).

llvm-svn: 63418
This commit is contained in:
Fariborz Jahanian 2009-01-30 20:55:31 +00:00
parent ff8acd684f
commit 279abd31a9
1 changed files with 56 additions and 1 deletions
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55
clang/lib/CodeGen/CGObjCMac.cpp
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@ -3144,6 +3144,59 @@ llvm::Function *CGObjCNonFragileABIMac::ModuleInitFunction() {
void CGObjCNonFragileABIMac::FinishNonFragileABIModule() {
// nonfragile abi has no module definition.
// Build list of all implemented classe addresses in array
// L_OBJC_LABEL_CLASS_$.
// FIXME. Also generate in L_OBJC_LABEL_NONLAZY_CLASS_$
// list of 'nonlazy' implementations (defined as those with a +load{}
// method!!).
unsigned NumClasses = DefinedClasses.size();
if (NumClasses) {
std::vector<llvm::Constant*> Symbols(NumClasses);
for (unsigned i=0; i<NumClasses; i++)
Symbols[i] = llvm::ConstantExpr::getBitCast(DefinedClasses[i],
ObjCTypes.Int8PtrTy);
llvm::Constant* Init =
llvm::ConstantArray::get(llvm::ArrayType::get(ObjCTypes.Int8PtrTy,
NumClasses),
Symbols);
llvm::GlobalVariable *GV =
new llvm::GlobalVariable(Init->getType(), false,
llvm::GlobalValue::InternalLinkage,
Init,
"\01L_OBJC_LABEL_CLASS_$",
&CGM.getModule());
GV->setSection("__DATA, __objc_classlist, regular, no_dead_strip");
UsedGlobals.push_back(GV);
}
// Build list of all implemented category addresses in array
// L_OBJC_LABEL_CATEGORY_$.
// FIXME. Also generate in L_OBJC_LABEL_NONLAZY_CATEGORY_$
// list of 'nonlazy' category implementations (defined as those with a +load{}
// method!!).
unsigned NumCategory = DefinedCategories.size();
if (NumCategory) {
std::vector<llvm::Constant*> Symbols(NumCategory);
for (unsigned i=0; i<NumCategory; i++)
Symbols[i] = llvm::ConstantExpr::getBitCast(DefinedCategories[i],
ObjCTypes.Int8PtrTy);
llvm::Constant* Init =
llvm::ConstantArray::get(llvm::ArrayType::get(ObjCTypes.Int8PtrTy,
NumCategory),
Symbols);
llvm::GlobalVariable *GV =
new llvm::GlobalVariable(Init->getType(), false,
llvm::GlobalValue::InternalLinkage,
Init,
"\01L_OBJC_LABEL_CATEGORY_$",
&CGM.getModule());
GV->setSection("__DATA, __objc_catlist, regular, no_dead_strip");
UsedGlobals.push_back(GV);
}
std::vector<llvm::Constant*> Used;
for (std::vector<llvm::GlobalVariable*>::iterator i = UsedGlobals.begin(),
e = UsedGlobals.end(); i != e; ++i) {
@ -3456,7 +3509,9 @@ void CGObjCNonFragileABIMac::GenerateClass(const ObjCImplementationDecl *ID) {
ID);
TClassName = ObjCClassName + ClassName;
llvm::GlobalVariable *ClassMD =
BuildClassMetaData(TClassName, MetaTClass, SuperClassGV, CLASS_RO_GV);
DefinedClasses.push_back(ClassMD);
}
/// GenerateProtocolRef - This routine is called to generate code for