xref: /freebsd/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_flags.h (revision cfd6422a5217410fbd66f7a7a8a64d9d85e61229)
1 //===-- sanitizer_flags.h ---------------------------------------*- 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 // This file is a part of ThreadSanitizer/AddressSanitizer runtime.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef SANITIZER_FLAGS_H
14 #define SANITIZER_FLAGS_H
15 
16 #include "sanitizer_internal_defs.h"
17 
18 namespace __sanitizer {
19 
20 enum HandleSignalMode {
21   kHandleSignalNo,
22   kHandleSignalYes,
23   kHandleSignalExclusive,
24 };
25 
26 struct CommonFlags {
27 #define COMMON_FLAG(Type, Name, DefaultValue, Description) Type Name;
28 #include "sanitizer_flags.inc"
29 #undef COMMON_FLAG
30 
31   void SetDefaults();
32   void CopyFrom(const CommonFlags &other);
33 };
34 
35 // Functions to get/set global CommonFlags shared by all sanitizer runtimes:
36 extern CommonFlags common_flags_dont_use;
37 inline const CommonFlags *common_flags() {
38   return &common_flags_dont_use;
39 }
40 
41 inline void SetCommonFlagsDefaults() {
42   common_flags_dont_use.SetDefaults();
43 }
44 
45 // This function can only be used to setup tool-specific overrides for
46 // CommonFlags defaults. Generally, it should only be used right after
47 // SetCommonFlagsDefaults(), but before ParseCommonFlagsFromString(), and
48 // only during the flags initialization (i.e. before they are used for
49 // the first time).
50 inline void OverrideCommonFlags(const CommonFlags &cf) {
51   common_flags_dont_use.CopyFrom(cf);
52 }
53 
54 void SubstituteForFlagValue(const char *s, char *out, uptr out_size);
55 
56 class FlagParser;
57 void RegisterCommonFlags(FlagParser *parser,
58                          CommonFlags *cf = &common_flags_dont_use);
59 void RegisterIncludeFlags(FlagParser *parser, CommonFlags *cf);
60 
61 // Should be called after parsing all flags. Sets up common flag values
62 // and perform initializations common to all sanitizers (e.g. setting
63 // verbosity).
64 void InitializeCommonFlags(CommonFlags *cf = &common_flags_dont_use);
65 }  // namespace __sanitizer
66 
67 #endif  // SANITIZER_FLAGS_H
68