1 //===- Sanitizers.cpp - C Language Family Language Options ----------------===//
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 // This file defines the classes from Sanitizers.h
10 //
11 //===----------------------------------------------------------------------===//
12
13 #include "clang/Basic/Sanitizers.h"
14 #include "llvm/ADT/Hashing.h"
15 #include "llvm/ADT/SmallVector.h"
16 #include "llvm/ADT/StringSwitch.h"
17 #include "llvm/Support/MathExtras.h"
18
19 using namespace clang;
20
21 // Once LLVM switches to C++17, the constexpr variables can be inline and we
22 // won't need this.
23 #define SANITIZER(NAME, ID) constexpr SanitizerMask SanitizerKind::ID;
24 #define SANITIZER_GROUP(NAME, ID, ALIAS) \
25 constexpr SanitizerMask SanitizerKind::ID; \
26 constexpr SanitizerMask SanitizerKind::ID##Group;
27 #include "clang/Basic/Sanitizers.def"
28
parseSanitizerValue(StringRef Value,bool AllowGroups)29 SanitizerMask clang::parseSanitizerValue(StringRef Value, bool AllowGroups) {
30 SanitizerMask ParsedKind = llvm::StringSwitch<SanitizerMask>(Value)
31 #define SANITIZER(NAME, ID) .Case(NAME, SanitizerKind::ID)
32 #define SANITIZER_GROUP(NAME, ID, ALIAS) \
33 .Case(NAME, AllowGroups ? SanitizerKind::ID##Group : SanitizerMask())
34 #include "clang/Basic/Sanitizers.def"
35 .Default(SanitizerMask());
36 return ParsedKind;
37 }
38
serializeSanitizerSet(SanitizerSet Set,SmallVectorImpl<StringRef> & Values)39 void clang::serializeSanitizerSet(SanitizerSet Set,
40 SmallVectorImpl<StringRef> &Values) {
41 #define SANITIZER(NAME, ID) \
42 if (Set.has(SanitizerKind::ID)) \
43 Values.push_back(NAME);
44 #include "clang/Basic/Sanitizers.def"
45 }
46
expandSanitizerGroups(SanitizerMask Kinds)47 SanitizerMask clang::expandSanitizerGroups(SanitizerMask Kinds) {
48 #define SANITIZER(NAME, ID)
49 #define SANITIZER_GROUP(NAME, ID, ALIAS) \
50 if (Kinds & SanitizerKind::ID##Group) \
51 Kinds |= SanitizerKind::ID;
52 #include "clang/Basic/Sanitizers.def"
53 return Kinds;
54 }
55
hash_value() const56 llvm::hash_code SanitizerMask::hash_value() const {
57 return llvm::hash_combine_range(&maskLoToHigh[0], &maskLoToHigh[kNumElem]);
58 }
59
60 namespace clang {
countPopulation() const61 unsigned SanitizerMask::countPopulation() const {
62 unsigned total = 0;
63 for (const auto &Val : maskLoToHigh)
64 total += llvm::popcount(Val);
65 return total;
66 }
67
hash_value(const clang::SanitizerMask & Arg)68 llvm::hash_code hash_value(const clang::SanitizerMask &Arg) {
69 return Arg.hash_value();
70 }
71
AsanDtorKindToString(llvm::AsanDtorKind kind)72 StringRef AsanDtorKindToString(llvm::AsanDtorKind kind) {
73 switch (kind) {
74 case llvm::AsanDtorKind::None:
75 return "none";
76 case llvm::AsanDtorKind::Global:
77 return "global";
78 case llvm::AsanDtorKind::Invalid:
79 return "invalid";
80 }
81 return "invalid";
82 }
83
AsanDtorKindFromString(StringRef kindStr)84 llvm::AsanDtorKind AsanDtorKindFromString(StringRef kindStr) {
85 return llvm::StringSwitch<llvm::AsanDtorKind>(kindStr)
86 .Case("none", llvm::AsanDtorKind::None)
87 .Case("global", llvm::AsanDtorKind::Global)
88 .Default(llvm::AsanDtorKind::Invalid);
89 }
90
AsanDetectStackUseAfterReturnModeToString(llvm::AsanDetectStackUseAfterReturnMode mode)91 StringRef AsanDetectStackUseAfterReturnModeToString(
92 llvm::AsanDetectStackUseAfterReturnMode mode) {
93 switch (mode) {
94 case llvm::AsanDetectStackUseAfterReturnMode::Always:
95 return "always";
96 case llvm::AsanDetectStackUseAfterReturnMode::Runtime:
97 return "runtime";
98 case llvm::AsanDetectStackUseAfterReturnMode::Never:
99 return "never";
100 case llvm::AsanDetectStackUseAfterReturnMode::Invalid:
101 return "invalid";
102 }
103 return "invalid";
104 }
105
106 llvm::AsanDetectStackUseAfterReturnMode
AsanDetectStackUseAfterReturnModeFromString(StringRef modeStr)107 AsanDetectStackUseAfterReturnModeFromString(StringRef modeStr) {
108 return llvm::StringSwitch<llvm::AsanDetectStackUseAfterReturnMode>(modeStr)
109 .Case("always", llvm::AsanDetectStackUseAfterReturnMode::Always)
110 .Case("runtime", llvm::AsanDetectStackUseAfterReturnMode::Runtime)
111 .Case("never", llvm::AsanDetectStackUseAfterReturnMode::Never)
112 .Default(llvm::AsanDetectStackUseAfterReturnMode::Invalid);
113 }
114
115 } // namespace clang
116