1 //===-------- MachOObjectFormat.cpp -- MachO format details for ORC -------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // ORC-specific MachO object format details. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "llvm/ExecutionEngine/Orc/Shared/MachOObjectFormat.h" 14 15 namespace llvm { 16 namespace orc { 17 18 StringRef MachODataCommonSectionName = "__DATA,__common"; 19 StringRef MachODataDataSectionName = "__DATA,__data"; 20 StringRef MachOEHFrameSectionName = "__TEXT,__eh_frame"; 21 StringRef MachOCompactUnwindSectionName = "__LD,__compact_unwind"; 22 StringRef MachOCStringSectionName = "__TEXT,__cstring"; 23 StringRef MachOModInitFuncSectionName = "__DATA,__mod_init_func"; 24 StringRef MachOObjCCatListSectionName = "__DATA,__objc_catlist"; 25 StringRef MachOObjCCatList2SectionName = "__DATA,__objc_catlist2"; 26 StringRef MachOObjCClassListSectionName = "__DATA,__objc_classlist"; 27 StringRef MachOObjCClassNameSectionName = "__TEXT,__objc_classname"; 28 StringRef MachOObjCClassRefsSectionName = "__DATA,__objc_classrefs"; 29 StringRef MachOObjCConstSectionName = "__DATA,__objc_const"; 30 StringRef MachOObjCDataSectionName = "__DATA,__objc_data"; 31 StringRef MachOObjCImageInfoSectionName = "__DATA,__objc_imageinfo"; 32 StringRef MachOObjCMethNameSectionName = "__TEXT,__objc_methname"; 33 StringRef MachOObjCMethTypeSectionName = "__TEXT,__objc_methtype"; 34 StringRef MachOObjCNLCatListSectionName = "__DATA,__objc_nlcatlist"; 35 StringRef MachOObjCNLClassListSectionName = "__DATA,__objc_nlclslist"; 36 StringRef MachOObjCProtoListSectionName = "__DATA,__objc_protolist"; 37 StringRef MachOObjCProtoRefsSectionName = "__DATA,__objc_protorefs"; 38 StringRef MachOObjCSelRefsSectionName = "__DATA,__objc_selrefs"; 39 StringRef MachOSwift5ProtoSectionName = "__TEXT,__swift5_proto"; 40 StringRef MachOSwift5ProtosSectionName = "__TEXT,__swift5_protos"; 41 StringRef MachOSwift5TypesSectionName = "__TEXT,__swift5_types"; 42 StringRef MachOSwift5TypeRefSectionName = "__TEXT,__swift5_typeref"; 43 StringRef MachOSwift5FieldMetadataSectionName = "__TEXT,__swift5_fieldmd"; 44 StringRef MachOSwift5EntrySectionName = "__TEXT,__swift5_entry"; 45 StringRef MachOTextTextSectionName = "__TEXT,__text"; 46 StringRef MachOThreadBSSSectionName = "__DATA,__thread_bss"; 47 StringRef MachOThreadDataSectionName = "__DATA,__thread_data"; 48 StringRef MachOThreadVarsSectionName = "__DATA,__thread_vars"; 49 StringRef MachOUnwindInfoSectionName = "__TEXT,__unwind_info"; 50 51 StringRef MachOInitSectionNames[22] = { 52 MachOModInitFuncSectionName, MachOObjCCatListSectionName, 53 MachOObjCCatList2SectionName, MachOObjCClassListSectionName, 54 MachOObjCClassNameSectionName, MachOObjCClassRefsSectionName, 55 MachOObjCConstSectionName, MachOObjCDataSectionName, 56 MachOObjCImageInfoSectionName, MachOObjCMethNameSectionName, 57 MachOObjCMethTypeSectionName, MachOObjCNLCatListSectionName, 58 MachOObjCNLClassListSectionName, MachOObjCProtoListSectionName, 59 MachOObjCProtoRefsSectionName, MachOObjCSelRefsSectionName, 60 MachOSwift5ProtoSectionName, MachOSwift5ProtosSectionName, 61 MachOSwift5TypesSectionName, MachOSwift5TypeRefSectionName, 62 MachOSwift5FieldMetadataSectionName, MachOSwift5EntrySectionName, 63 }; 64 65 bool isMachOInitializerSection(StringRef SegName, StringRef SecName) { 66 for (auto &InitSection : MachOInitSectionNames) { 67 // Loop below assumes all MachO init sectios have a length-6 68 // segment name. 69 assert(InitSection[6] == ',' && "Init section seg name has length != 6"); 70 if (InitSection.starts_with(SegName) && InitSection.substr(7) == SecName) 71 return true; 72 } 73 return false; 74 } 75 76 } // namespace orc 77 } // namespace llvm 78