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