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62 lines
1.9 KiB
C++
62 lines
1.9 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_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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namespace __ubsan {
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static const char *MaybeCallUbsanDefaultOptions() {
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return (&__ubsan_default_options) ? __ubsan_default_options() : "";
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}
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void InitializeCommonFlags() {
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CommonFlags *cf = common_flags();
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SetCommonFlagsDefaults(cf);
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cf->print_summary = false;
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// Override from user-specified string.
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ParseCommonFlagsFromString(cf, MaybeCallUbsanDefaultOptions());
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// Override from environment variable.
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ParseCommonFlagsFromString(cf, GetEnv("UBSAN_OPTIONS"));
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}
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Flags ubsan_flags;
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static void ParseFlagsFromString(Flags *f, const char *str) {
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if (!str)
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return;
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ParseFlag(str, &f->halt_on_error, "halt_on_error",
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"Crash the program after printing the first error report");
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ParseFlag(str, &f->print_stacktrace, "print_stacktrace",
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"Include full stacktrace into an error report");
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}
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void InitializeFlags() {
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Flags *f = flags();
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// Default values.
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f->halt_on_error = false;
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f->print_stacktrace = false;
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// Override from user-specified string.
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ParseFlagsFromString(f, MaybeCallUbsanDefaultOptions());
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// Override from environment variable.
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ParseFlagsFromString(f, GetEnv("UBSAN_OPTIONS"));
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}
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} // namespace __ubsan
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#if !SANITIZER_SUPPORTS_WEAK_HOOKS
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extern "C" {
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SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
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const char *__ubsan_default_options() { return ""; }
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} // extern "C"
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#endif
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