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//===-- ubsan_flags.cc ----------------------------------------------------===//
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Runtime flags for UndefinedBehaviorSanitizer.
//
//===----------------------------------------------------------------------===//
#include "ubsan_flags.h"
#include "sanitizer_common/sanitizer_common.h"
#include "sanitizer_common/sanitizer_flags.h"
namespace __ubsan {
static const char *MaybeCallUbsanDefaultOptions() {
return (&__ubsan_default_options) ? __ubsan_default_options() : "";
}
void InitializeCommonFlags() {
CommonFlags *cf = common_flags();
SetCommonFlagsDefaults(cf);
cf->print_summary = false;
// Override from user-specified string.
ParseCommonFlagsFromString(cf, MaybeCallUbsanDefaultOptions());
// Override from environment variable.
ParseCommonFlagsFromString(cf, GetEnv("UBSAN_OPTIONS"));
}
Flags ubsan_flags;
static void ParseFlagsFromString(Flags *f, const char *str) {
if (!str)
return;
ParseFlag(str, &f->halt_on_error, "halt_on_error",
"Crash the program after printing the first error report");
ParseFlag(str, &f->print_stacktrace, "print_stacktrace",
"Include full stacktrace into an error report");
}
void InitializeFlags() {
Flags *f = flags();
// Default values.
f->halt_on_error = false;
f->print_stacktrace = false;
// Override from user-specified string.
ParseFlagsFromString(f, MaybeCallUbsanDefaultOptions());
// Override from environment variable.
ParseFlagsFromString(f, GetEnv("UBSAN_OPTIONS"));
}
} // namespace __ubsan
#if !SANITIZER_SUPPORTS_WEAK_HOOKS
extern "C" {
SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
const char *__ubsan_default_options() { return ""; }
} // extern "C"
#endif
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