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87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
//===-- ubsan_flags.cc ----------------------------------------------------===//
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Runtime flags for UndefinedBehaviorSanitizer.
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//
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//===----------------------------------------------------------------------===//
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#include "ubsan_platform.h"
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#if CAN_SANITIZE_UB
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#include "ubsan_flags.h"
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#include "sanitizer_common/sanitizer_common.h"
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#include "sanitizer_common/sanitizer_flags.h"
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#include "sanitizer_common/sanitizer_flag_parser.h"
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namespace __ubsan {
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const char *MaybeCallUbsanDefaultOptions() {
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return (&__ubsan_default_options) ? __ubsan_default_options() : "";
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}
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Flags ubsan_flags;
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void Flags::SetDefaults() {
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#define UBSAN_FLAG(Type, Name, DefaultValue, Description) Name = DefaultValue;
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#include "ubsan_flags.inc"
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#undef UBSAN_FLAG
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}
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void RegisterUbsanFlags(FlagParser *parser, Flags *f) {
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#define UBSAN_FLAG(Type, Name, DefaultValue, Description) \
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RegisterFlag(parser, #Name, Description, &f->Name);
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#include "ubsan_flags.inc"
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#undef UBSAN_FLAG
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}
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void InitializeFlags() {
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SetCommonFlagsDefaults();
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{
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CommonFlags cf;
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cf.CopyFrom(*common_flags());
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cf.print_summary = false;
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OverrideCommonFlags(cf);
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}
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Flags *f = flags();
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f->SetDefaults();
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FlagParser parser;
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RegisterCommonFlags(&parser);
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RegisterUbsanFlags(&parser, f);
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// Override from user-specified string.
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parser.ParseString(MaybeCallUbsanDefaultOptions());
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// Override from environment variable.
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parser.ParseString(GetEnv("UBSAN_OPTIONS"));
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SetVerbosity(common_flags()->verbosity);
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if (Verbosity()) ReportUnrecognizedFlags();
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if (common_flags()->help) parser.PrintFlagDescriptions();
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}
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} // namespace __ubsan
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extern "C" {
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#if !SANITIZER_SUPPORTS_WEAK_HOOKS
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SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
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const char *__ubsan_default_options() { return ""; }
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#endif
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#if SANITIZER_WINDOWS
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const char *__ubsan_default_default_options() { return ""; }
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# ifdef _WIN64
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# pragma comment(linker, "/alternatename:__ubsan_default_options=__ubsan_default_default_options")
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# else
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# pragma comment(linker, "/alternatename:___ubsan_default_options=___ubsan_default_default_options")
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# endif
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#endif
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} // extern "C"
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#endif // CAN_SANITIZE_UB
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