1 | //===---------- ObjectFormats.cpp - Object 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 object format details. |
10 | // |
11 | //===----------------------------------------------------------------------===// |
12 | |
13 | #include "llvm/ExecutionEngine/Orc/Shared/ObjectFormats.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 MachOCompactUnwindInfoSectionName = "__TEXT,__unwind_info" ; |
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 MachOObjCSelRefsSectionName = "__DATA,__objc_selrefs" ; |
36 | StringRef MachOSwift5ProtoSectionName = "__TEXT,__swift5_proto" ; |
37 | StringRef MachOSwift5ProtosSectionName = "__TEXT,__swift5_protos" ; |
38 | StringRef MachOSwift5TypesSectionName = "__TEXT,__swift5_types" ; |
39 | StringRef MachOSwift5TypeRefSectionName = "__TEXT,__swift5_typeref" ; |
40 | StringRef MachOSwift5FieldMetadataSectionName = "__TEXT,__swift5_fieldmd" ; |
41 | StringRef MachOSwift5EntrySectionName = "__TEXT,__swift5_entry" ; |
42 | StringRef MachOThreadBSSSectionName = "__DATA,__thread_bss" ; |
43 | StringRef MachOThreadDataSectionName = "__DATA,__thread_data" ; |
44 | StringRef = "__DATA,__thread_vars" ; |
45 | |
46 | StringRef MachOInitSectionNames[19] = { |
47 | MachOModInitFuncSectionName, MachOObjCCatListSectionName, |
48 | MachOObjCCatList2SectionName, MachOObjCClassListSectionName, |
49 | MachOObjCClassNameSectionName, MachOObjCClassRefsSectionName, |
50 | MachOObjCConstSectionName, MachOObjCDataSectionName, |
51 | MachOObjCImageInfoSectionName, MachOObjCMethNameSectionName, |
52 | MachOObjCMethTypeSectionName, MachOObjCNLCatListSectionName, |
53 | MachOObjCSelRefsSectionName, MachOSwift5ProtoSectionName, |
54 | MachOSwift5ProtosSectionName, MachOSwift5TypesSectionName, |
55 | MachOSwift5TypeRefSectionName, MachOSwift5FieldMetadataSectionName, |
56 | MachOSwift5EntrySectionName, |
57 | }; |
58 | |
59 | StringRef ELFEHFrameSectionName = ".eh_frame" ; |
60 | |
61 | StringRef ELFInitArrayFuncSectionName = ".init_array" ; |
62 | StringRef ELFInitFuncSectionName = ".init" ; |
63 | StringRef ELFFiniArrayFuncSectionName = ".fini_array" ; |
64 | StringRef ELFFiniFuncSectionName = ".fini" ; |
65 | StringRef ELFCtorArrayFuncSectionName = ".ctors" ; |
66 | StringRef ELFDtorArrayFuncSectionName = ".dtors" ; |
67 | |
68 | StringRef ELFInitSectionNames[3]{ |
69 | ELFInitArrayFuncSectionName, |
70 | ELFInitFuncSectionName, |
71 | ELFCtorArrayFuncSectionName, |
72 | }; |
73 | |
74 | StringRef ELFThreadBSSSectionName = ".tbss" ; |
75 | StringRef ELFThreadDataSectionName = ".tdata" ; |
76 | |
77 | bool isMachOInitializerSection(StringRef SegName, StringRef SecName) { |
78 | for (auto &InitSection : MachOInitSectionNames) { |
79 | // Loop below assumes all MachO init sectios have a length-6 |
80 | // segment name. |
81 | assert(InitSection[6] == ',' && "Init section seg name has length != 6" ); |
82 | if (InitSection.starts_with(Prefix: SegName) && InitSection.substr(Start: 7) == SecName) |
83 | return true; |
84 | } |
85 | return false; |
86 | } |
87 | |
88 | bool isMachOInitializerSection(StringRef QualifiedName) { |
89 | for (auto &InitSection : MachOInitSectionNames) |
90 | if (InitSection == QualifiedName) |
91 | return true; |
92 | return false; |
93 | } |
94 | |
95 | bool isELFInitializerSection(StringRef SecName) { |
96 | for (StringRef InitSection : ELFInitSectionNames) { |
97 | StringRef Name = SecName; |
98 | if (Name.consume_front(Prefix: InitSection) && (Name.empty() || Name[0] == '.')) |
99 | return true; |
100 | } |
101 | return false; |
102 | } |
103 | |
104 | bool isCOFFInitializerSection(StringRef SecName) { |
105 | return SecName.starts_with(Prefix: ".CRT" ); |
106 | } |
107 | |
108 | } // namespace orc |
109 | } // namespace llvm |
110 | |