xref: /freebsd/contrib/llvm-project/clang/lib/Basic/Sanitizers.cpp (revision cfd6422a5217410fbd66f7a7a8a64d9d85e61229)
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/StringSwitch.h"
16 
17 using namespace clang;
18 
19 // Once LLVM switches to C++17, the constexpr variables can be inline and we
20 // won't need this.
21 #define SANITIZER(NAME, ID) constexpr SanitizerMask SanitizerKind::ID;
22 #define SANITIZER_GROUP(NAME, ID, ALIAS)                                       \
23   constexpr SanitizerMask SanitizerKind::ID;                                   \
24   constexpr SanitizerMask SanitizerKind::ID##Group;
25 #include "clang/Basic/Sanitizers.def"
26 
27 SanitizerMask clang::parseSanitizerValue(StringRef Value, bool AllowGroups) {
28   SanitizerMask ParsedKind = llvm::StringSwitch<SanitizerMask>(Value)
29 #define SANITIZER(NAME, ID) .Case(NAME, SanitizerKind::ID)
30 #define SANITIZER_GROUP(NAME, ID, ALIAS)                                       \
31   .Case(NAME, AllowGroups ? SanitizerKind::ID##Group : SanitizerMask())
32 #include "clang/Basic/Sanitizers.def"
33     .Default(SanitizerMask());
34   return ParsedKind;
35 }
36 
37 SanitizerMask clang::expandSanitizerGroups(SanitizerMask Kinds) {
38 #define SANITIZER(NAME, ID)
39 #define SANITIZER_GROUP(NAME, ID, ALIAS)                                       \
40   if (Kinds & SanitizerKind::ID##Group)                                        \
41     Kinds |= SanitizerKind::ID;
42 #include "clang/Basic/Sanitizers.def"
43   return Kinds;
44 }
45 
46 llvm::hash_code SanitizerMask::hash_value() const {
47   return llvm::hash_combine_range(&maskLoToHigh[0], &maskLoToHigh[kNumElem]);
48 }
49 
50 namespace clang {
51 llvm::hash_code hash_value(const clang::SanitizerMask &Arg) {
52   return Arg.hash_value();
53 }
54 } // namespace clang
55