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
isMachOInitializerSection(StringRef SegName,StringRef SecName)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