Alexey Samsonov | f3be706 | 2012-07-09 13:21:39 +0000 | [diff] [blame] | 1 | //===-- sanitizer_flags.cc ------------------------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file is a part of ThreadSanitizer/AddressSanitizer runtime. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "sanitizer_flags.h" |
| 15 | |
| 16 | #include "sanitizer_common.h" |
| 17 | #include "sanitizer_libc.h" |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 18 | #include "sanitizer_list.h" |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 19 | #include "sanitizer_flag_parser.h" |
Alexey Samsonov | f3be706 | 2012-07-09 13:21:39 +0000 | [diff] [blame] | 20 | |
| 21 | namespace __sanitizer { |
| 22 | |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 23 | CommonFlags common_flags_dont_use; |
| 24 | |
| 25 | struct FlagDescription { |
| 26 | const char *name; |
| 27 | const char *description; |
| 28 | FlagDescription *next; |
| 29 | }; |
| 30 | |
| 31 | IntrusiveList<FlagDescription> flag_descriptions; |
| 32 | |
Stephen Hines | 6a211c5 | 2014-07-21 00:49:56 -0700 | [diff] [blame] | 33 | // If set, the tool will install its own SEGV signal handler by default. |
| 34 | #ifndef SANITIZER_NEEDS_SEGV |
| 35 | # define SANITIZER_NEEDS_SEGV 1 |
| 36 | #endif |
| 37 | |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 38 | void CommonFlags::SetDefaults() { |
| 39 | #define COMMON_FLAG(Type, Name, DefaultValue, Description) Name = DefaultValue; |
| 40 | #include "sanitizer_flags.inc" |
| 41 | #undef COMMON_FLAG |
Alexey Samsonov | 55c7947 | 2013-11-12 13:59:08 +0000 | [diff] [blame] | 42 | } |
| 43 | |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 44 | void CommonFlags::CopyFrom(const CommonFlags &other) { |
| 45 | internal_memcpy(this, &other, sizeof(*this)); |
Sergey Matveev | ed20ebe | 2013-05-06 11:27:58 +0000 | [diff] [blame] | 46 | } |
| 47 | |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 48 | class FlagHandlerInclude : public FlagHandlerBase { |
| 49 | static const uptr kMaxIncludeSize = 1 << 15; |
| 50 | FlagParser *parser_; |
| 51 | |
| 52 | public: |
| 53 | explicit FlagHandlerInclude(FlagParser *parser) : parser_(parser) {} |
| 54 | bool Parse(const char *value) final { |
| 55 | char *data; |
| 56 | uptr data_mapped_size; |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 57 | error_t err; |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 58 | uptr len = |
| 59 | ReadFileToBuffer(value, &data, &data_mapped_size, |
| 60 | Max(kMaxIncludeSize, GetPageSizeCached()), &err); |
| 61 | if (!len) { |
| 62 | Printf("Failed to read options from '%s': error %d\n", value, err); |
Dmitry Vyukov | 5d834a8 | 2013-03-27 17:59:13 +0000 | [diff] [blame] | 63 | return false; |
Dmitry Vyukov | 5d834a8 | 2013-03-27 17:59:13 +0000 | [diff] [blame] | 64 | } |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 65 | parser_->ParseString(data); |
| 66 | UnmapOrDie(data, data_mapped_size); |
| 67 | return true; |
Dmitry Vyukov | 5d834a8 | 2013-03-27 17:59:13 +0000 | [diff] [blame] | 68 | } |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 69 | }; |
| 70 | |
| 71 | void RegisterIncludeFlag(FlagParser *parser, CommonFlags *cf) { |
| 72 | FlagHandlerInclude *fh_include = |
| 73 | new (FlagParser::Alloc) FlagHandlerInclude(parser); // NOLINT |
| 74 | parser->RegisterHandler("include", fh_include, |
| 75 | "read more options from the given file"); |
Alexey Samsonov | 947fbd1 | 2012-08-27 14:04:54 +0000 | [diff] [blame] | 76 | } |
| 77 | |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 78 | void RegisterCommonFlags(FlagParser *parser, CommonFlags *cf) { |
| 79 | #define COMMON_FLAG(Type, Name, DefaultValue, Description) \ |
| 80 | RegisterFlag(parser, #Name, Description, &cf->Name); |
| 81 | #include "sanitizer_flags.inc" |
| 82 | #undef COMMON_FLAG |
Alexey Samsonov | f3be706 | 2012-07-09 13:21:39 +0000 | [diff] [blame] | 83 | |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 84 | RegisterIncludeFlag(parser, cf); |
Alexey Samsonov | f3be706 | 2012-07-09 13:21:39 +0000 | [diff] [blame] | 85 | } |
| 86 | |
| 87 | } // namespace __sanitizer |