52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___VERBOSE_ABORT
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#define _LIBCPP___VERBOSE_ABORT
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#include <__availability>
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#include <__config>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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// Provide a default implementation of __libcpp_verbose_abort if we know that neither the built
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// library not the user is providing one. Otherwise, just declare it and use the one from the
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// built library or the one provided by the user.
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//
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// We can't provide a great implementation because it needs to be pretty much
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// dependency-free (this is included everywhere else in the library).
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#if defined(_LIBCPP_HAS_NO_VERBOSE_ABORT_IN_LIBRARY) && !defined(_LIBCPP_AVAILABILITY_CUSTOM_VERBOSE_ABORT_PROVIDED)
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extern "C" void abort();
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_LIBCPP_BEGIN_NAMESPACE_STD
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_LIBCPP_NORETURN _LIBCPP_ATTRIBUTE_FORMAT(__printf__, 1, 2) _LIBCPP_HIDE_FROM_ABI inline
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void __libcpp_verbose_abort(const char *, ...) {
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::abort();
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__builtin_unreachable(); // never reached, but needed to tell the compiler that the function never returns
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}
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_LIBCPP_END_NAMESPACE_STD
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#else
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_LIBCPP_BEGIN_NAMESPACE_STD
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_LIBCPP_NORETURN _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_ATTRIBUTE_FORMAT(__printf__, 1, 2)
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void __libcpp_verbose_abort(const char *__format, ...);
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_LIBCPP_END_NAMESPACE_STD
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#endif
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#endif // _LIBCPP___VERBOSE_ABORT
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