diff options
Diffstat (limited to 'lib/CodeGen/CGObjCMac.cpp')
| -rw-r--r-- | lib/CodeGen/CGObjCMac.cpp | 65 |
1 files changed, 49 insertions, 16 deletions
diff --git a/lib/CodeGen/CGObjCMac.cpp b/lib/CodeGen/CGObjCMac.cpp index 9c048423285b..c78d3febd4cd 100644 --- a/lib/CodeGen/CGObjCMac.cpp +++ b/lib/CodeGen/CGObjCMac.cpp @@ -1004,6 +1004,8 @@ protected: const ObjCInterfaceDecl *ID, ObjCCommonTypesHelper &ObjCTypes); + std::string GetSectionName(StringRef Section, StringRef MachOAttributes); + public: /// CreateMetadataVar - Create a global variable with internal /// linkage for use by the Objective-C runtime. @@ -4786,6 +4788,27 @@ llvm::Value *CGObjCMac::EmitIvarOffset(CodeGen::CodeGenFunction &CGF, /* *** Private Interface *** */ +std::string CGObjCCommonMac::GetSectionName(StringRef Section, + StringRef MachOAttributes) { + switch (CGM.getTriple().getObjectFormat()) { + default: + llvm_unreachable("unexpected object file format"); + case llvm::Triple::MachO: { + if (MachOAttributes.empty()) + return ("__DATA," + Section).str(); + return ("__DATA," + Section + "," + MachOAttributes).str(); + } + case llvm::Triple::ELF: + assert(Section.substr(0, 2) == "__" && + "expected the name to begin with __"); + return Section.substr(2).str(); + case llvm::Triple::COFF: + assert(Section.substr(0, 2) == "__" && + "expected the name to begin with __"); + return ("." + Section.substr(2) + "$B").str(); + } +} + /// EmitImageInfo - Emit the image info marker used to encode some module /// level information. /// @@ -4809,9 +4832,10 @@ enum ImageInfoFlags { void CGObjCCommonMac::EmitImageInfo() { unsigned version = 0; // Version is unused? - const char *Section = (ObjCABI == 1) ? - "__OBJC, __image_info,regular" : - "__DATA, __objc_imageinfo, regular, no_dead_strip"; + std::string Section = + (ObjCABI == 1) + ? "__OBJC,__image_info,regular" + : GetSectionName("__objc_imageinfo", "regular,no_dead_strip"); // Generate module-level named metadata to convey this information to the // linker and code-gen. @@ -4822,7 +4846,7 @@ void CGObjCCommonMac::EmitImageInfo() { Mod.addModuleFlag(llvm::Module::Error, "Objective-C Image Info Version", version); Mod.addModuleFlag(llvm::Module::Error, "Objective-C Image Info Section", - llvm::MDString::get(VMContext,Section)); + llvm::MDString::get(VMContext, Section)); if (CGM.getLangOpts().getGC() == LangOptions::NonGC) { // Non-GC overrides those files which specify GC. @@ -5930,17 +5954,21 @@ void CGObjCNonFragileABIMac::FinishNonFragileABIModule() { } AddModuleClassList(DefinedClasses, "OBJC_LABEL_CLASS_$", - "__DATA, __objc_classlist, regular, no_dead_strip"); + GetSectionName("__objc_classlist", + "regular,no_dead_strip")); AddModuleClassList(DefinedNonLazyClasses, "OBJC_LABEL_NONLAZY_CLASS_$", - "__DATA, __objc_nlclslist, regular, no_dead_strip"); + GetSectionName("__objc_nlclslist", + "regular,no_dead_strip")); // Build list of all implemented category addresses in array // L_OBJC_LABEL_CATEGORY_$. AddModuleClassList(DefinedCategories, "OBJC_LABEL_CATEGORY_$", - "__DATA, __objc_catlist, regular, no_dead_strip"); + GetSectionName("__objc_catlist", + "regular,no_dead_strip")); AddModuleClassList(DefinedNonLazyCategories, "OBJC_LABEL_NONLAZY_CATEGORY_$", - "__DATA, __objc_nlcatlist, regular, no_dead_strip"); + GetSectionName("__objc_nlcatlist", + "regular,no_dead_strip")); EmitImageInfo(); } @@ -6359,7 +6387,8 @@ llvm::Value *CGObjCNonFragileABIMac::GenerateProtocolRef(CodeGenFunction &CGF, llvm::GlobalValue::WeakAnyLinkage, Init, ProtocolName); - PTGV->setSection("__DATA, __objc_protorefs, coalesced, no_dead_strip"); + PTGV->setSection(GetSectionName("__objc_protorefs", + "coalesced,no_dead_strip")); PTGV->setVisibility(llvm::GlobalValue::HiddenVisibility); PTGV->setAlignment(Align.getQuantity()); CGM.addCompilerUsedGlobal(PTGV); @@ -6818,8 +6847,8 @@ llvm::Constant *CGObjCNonFragileABIMac::GetOrEmitProtocol( PTGV->setComdat(CGM.getModule().getOrInsertComdat(ProtocolRef)); PTGV->setAlignment( CGM.getDataLayout().getABITypeAlignment(ObjCTypes.ProtocolnfABIPtrTy)); - if (CGM.getTriple().isOSBinFormatMachO()) - PTGV->setSection("__DATA, __objc_protolist, coalesced, no_dead_strip"); + PTGV->setSection(GetSectionName("__objc_protolist", + "coalesced,no_dead_strip")); PTGV->setVisibility(llvm::GlobalValue::HiddenVisibility); CGM.addCompilerUsedGlobal(PTGV); return Entry; @@ -7015,7 +7044,7 @@ CGObjCNonFragileABIMac::EmitVTableMessageSend(CodeGenFunction &CGF, /*constant*/ false, llvm::GlobalValue::WeakAnyLinkage); messageRef->setVisibility(llvm::GlobalValue::HiddenVisibility); - messageRef->setSection("__DATA, __objc_msgrefs, coalesced"); + messageRef->setSection(GetSectionName("__objc_msgrefs", "coalesced")); } bool requiresnullCheck = false; @@ -7126,7 +7155,8 @@ CGObjCNonFragileABIMac::EmitClassRefFromId(CodeGenFunction &CGF, false, llvm::GlobalValue::PrivateLinkage, ClassGV, "OBJC_CLASSLIST_REFERENCES_$_"); Entry->setAlignment(Align.getQuantity()); - Entry->setSection("__DATA, __objc_classrefs, regular, no_dead_strip"); + Entry->setSection(GetSectionName("__objc_classrefs", + "regular,no_dead_strip")); CGM.addCompilerUsedGlobal(Entry); } return CGF.Builder.CreateAlignedLoad(Entry, Align); @@ -7160,7 +7190,8 @@ CGObjCNonFragileABIMac::EmitSuperClassRef(CodeGenFunction &CGF, false, llvm::GlobalValue::PrivateLinkage, ClassGV, "OBJC_CLASSLIST_SUP_REFS_$_"); Entry->setAlignment(Align.getQuantity()); - Entry->setSection("__DATA, __objc_superrefs, regular, no_dead_strip"); + Entry->setSection(GetSectionName("__objc_superrefs", + "regular,no_dead_strip")); CGM.addCompilerUsedGlobal(Entry); } return CGF.Builder.CreateAlignedLoad(Entry, Align); @@ -7182,7 +7213,8 @@ llvm::Value *CGObjCNonFragileABIMac::EmitMetaClassRef(CodeGenFunction &CGF, MetaClassGV, "OBJC_CLASSLIST_SUP_REFS_$_"); Entry->setAlignment(Align.getQuantity()); - Entry->setSection("__DATA, __objc_superrefs, regular, no_dead_strip"); + Entry->setSection(GetSectionName("__objc_superrefs", + "regular,no_dead_strip")); CGM.addCompilerUsedGlobal(Entry); } @@ -7278,7 +7310,8 @@ Address CGObjCNonFragileABIMac::EmitSelectorAddr(CodeGenFunction &CGF, false, llvm::GlobalValue::PrivateLinkage, Casted, "OBJC_SELECTOR_REFERENCES_"); Entry->setExternallyInitialized(true); - Entry->setSection("__DATA, __objc_selrefs, literal_pointers, no_dead_strip"); + Entry->setSection(GetSectionName("__objc_selrefs", + "literal_pointers,no_dead_strip")); Entry->setAlignment(Align.getQuantity()); CGM.addCompilerUsedGlobal(Entry); } |