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comparison lld/lib/Core/DefinedAtom.cpp @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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147:c2174574ed3a 150:1d019706d866
1 //===- DefinedAtom.cpp ------------------------------------------*- C++ -*-===//
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 #include "llvm/Support/ErrorHandling.h"
10 #include "lld/Core/DefinedAtom.h"
11 #include "lld/Core/File.h"
12
13 namespace lld {
14
15 DefinedAtom::ContentPermissions DefinedAtom::permissions() const {
16 // By default base permissions on content type.
17 return permissions(this->contentType());
18 }
19
20 // Utility function for deriving permissions from content type
21 DefinedAtom::ContentPermissions DefinedAtom::permissions(ContentType type) {
22 switch (type) {
23 case typeCode:
24 case typeResolver:
25 case typeBranchIsland:
26 case typeBranchShim:
27 case typeStub:
28 case typeStubHelper:
29 case typeMachHeader:
30 return permR_X;
31
32 case typeConstant:
33 case typeCString:
34 case typeUTF16String:
35 case typeCFI:
36 case typeLSDA:
37 case typeLiteral4:
38 case typeLiteral8:
39 case typeLiteral16:
40 case typeDTraceDOF:
41 case typeCompactUnwindInfo:
42 case typeProcessedUnwindInfo:
43 case typeObjCImageInfo:
44 case typeObjCMethodList:
45 return permR__;
46
47 case typeData:
48 case typeDataFast:
49 case typeZeroFill:
50 case typeZeroFillFast:
51 case typeObjC1Class:
52 case typeLazyPointer:
53 case typeLazyDylibPointer:
54 case typeNonLazyPointer:
55 case typeThunkTLV:
56 return permRW_;
57
58 case typeGOT:
59 case typeConstData:
60 case typeCFString:
61 case typeInitializerPtr:
62 case typeTerminatorPtr:
63 case typeCStringPtr:
64 case typeObjCClassPtr:
65 case typeObjC2CategoryList:
66 case typeInterposingTuples:
67 case typeTLVInitialData:
68 case typeTLVInitialZeroFill:
69 case typeTLVInitializerPtr:
70 return permRW_L;
71
72 case typeUnknown:
73 case typeTempLTO:
74 case typeSectCreate:
75 case typeDSOHandle:
76 return permUnknown;
77 }
78 llvm_unreachable("unknown content type");
79 }
80
81 } // namespace