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507125af3d
With the goal of reusing that handler to do other things besides handling assertions (such as terminating when an exception is thrown under -fno-exceptions), the name `__libcpp_assertion_handler` doesn't really make sense anymore. Furthermore, I didn't want to use the name `__libcpp_abort_handler`, since that would give the impression that the handler is called whenever `std::abort()` is called, which is not the case at all. Differential Revision: https://reviews.llvm.org/D130562
60 lines
2.2 KiB
C++
60 lines
2.2 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___ASSERT
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#define _LIBCPP___ASSERT
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#include <__config>
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#include <__verbose_abort>
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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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// This is for backwards compatibility with code that might have been enabling
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// assertions through the Debug mode previously.
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// TODO: In LLVM 16, make it an error to define _LIBCPP_DEBUG
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#if defined(_LIBCPP_DEBUG)
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# ifndef _LIBCPP_ENABLE_ASSERTIONS
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# define _LIBCPP_ENABLE_ASSERTIONS 1
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# endif
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#endif
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// Automatically enable assertions when the debug mode is enabled.
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#if defined(_LIBCPP_ENABLE_DEBUG_MODE)
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# ifndef _LIBCPP_ENABLE_ASSERTIONS
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# define _LIBCPP_ENABLE_ASSERTIONS 1
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# endif
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#endif
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#ifndef _LIBCPP_ENABLE_ASSERTIONS
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# define _LIBCPP_ENABLE_ASSERTIONS _LIBCPP_ENABLE_ASSERTIONS_DEFAULT
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#endif
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#if _LIBCPP_ENABLE_ASSERTIONS != 0 && _LIBCPP_ENABLE_ASSERTIONS != 1
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# error "_LIBCPP_ENABLE_ASSERTIONS must be set to 0 or 1"
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#endif
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#if _LIBCPP_ENABLE_ASSERTIONS
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# define _LIBCPP_ASSERT(expression, message) \
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(__builtin_expect(static_cast<bool>(expression), 1) ? \
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(void)0 : \
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::std::__libcpp_verbose_abort("%s:%d: assertion %s failed: %s", __FILE__, __LINE__, #expression, message))
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#elif !defined(_LIBCPP_ASSERTIONS_DISABLE_ASSUME) && __has_builtin(__builtin_assume)
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# define _LIBCPP_ASSERT(expression, message) \
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(_LIBCPP_DIAGNOSTIC_PUSH \
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_LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wassume") \
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__builtin_assume(static_cast<bool>(expression)) \
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_LIBCPP_DIAGNOSTIC_POP)
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#else
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# define _LIBCPP_ASSERT(expression, message) ((void)0)
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#endif
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#endif // _LIBCPP___ASSERT
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