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/* bug.h -*-C++-*-
*
*************************************************************************
*
* Copyright (C) 2009-2016, Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
* WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* *********************************************************************
*
* PLEASE NOTE: This file is a downstream copy of a file mainitained in
* a repository at cilkplus.org. Changes made to this file that are not
* submitted through the contribution process detailed at
* http://www.cilkplus.org/submit-cilk-contribution will be lost the next
* time that a new version is released. Changes only submitted to the
* GNU compiler collection or posted to the git repository at
* https://bitbucket.org/intelcilkruntime/intel-cilk-runtime.git are
* not tracked.
*
* We welcome your contributions to this open source project. Thank you
* for your assistance in helping us improve Cilk Plus.
**************************************************************************/
/**
* @file bug.h
*
* @brief Support for reporting bugs and debugging.
*/
#ifndef INCLUDED_BUG_DOT_H
#define INCLUDED_BUG_DOT_H
#include "rts-common.h"
#include <cilk/common.h>
__CILKRTS_BEGIN_EXTERN_C
/**
* Flush all output, write error message to stderr and abort the execution.
* On Windows the error is also written to the debugger.
*
* @param fmt printf-style format string. Any remaining parameters will be
* be interpreted based on the format string text.
*/
COMMON_PORTABLE NORETURN __cilkrts_bug(const char *fmt,...) cilk_nothrow;
#ifndef CILK_ASSERT
/** Standard text for failed assertion */
COMMON_PORTABLE extern const char *const __cilkrts_assertion_failed;
/**
* Macro to assert an invariant that must be true. If the statement evalutes
* to false, __cilkrts_bug will be called to report the failure and terminate
* the application.
*/
#define CILK_ASSERT(ex) \
(__builtin_expect((ex) != 0, 1) ? (void)0 : \
__cilkrts_bug(__cilkrts_assertion_failed, __FILE__, __LINE__, #ex))
#define CILK_ASSERT_MSG(ex, msg) \
(__builtin_expect((ex) != 0, 1) ? (void)0 : \
__cilkrts_bug(__cilkrts_assertion_failed, __FILE__, __LINE__, \
#ex "\n " msg))
#endif // CILK_ASSERT
/**
* Assert that there is no uncaught exception.
*
* Not valid on Windows or Android.
*
* On Android, calling std::uncaught_exception with the stlport library causes
* a seg fault. Since we're not supporting exceptions there at this point,
* just don't do the check. It works with the GNU STL library, but that's
* GPL V3 licensed.
*/
COMMON_PORTABLE void cilkbug_assert_no_uncaught_exception(void);
#if defined(_WIN32) || defined(__ANDROID__)
# define CILKBUG_ASSERT_NO_UNCAUGHT_EXCEPTION()
#else
# define CILKBUG_ASSERT_NO_UNCAUGHT_EXCEPTION() \
cilkbug_assert_no_uncaught_exception()
#endif
/**
* Call __cilkrts_bug with a standard message that the runtime state is
* corrupted and the application is being terminated.
*/
COMMON_SYSDEP void abort_because_rts_is_corrupted(void);
// Debugging aids
#ifndef _DEBUG
# define DBGPRINTF(_fmt, ...)
#elif defined(_WIN32)
/**
* Write debugging output. On windows this is written to the debugger.
*
* @param fmt printf-style format string. Any remaining parameters will be
* be interpreted based on the format string text.
*/
COMMON_SYSDEP void __cilkrts_dbgprintf(const char *fmt,...) cilk_nothrow;
/**
* Macro to write debugging output which will be elided if this is not a
* debug build. The macro is currently always elided on non-Windows builds.
*
* @param _fmt printf-style format string. Any remaining parameters will be
* be interpreted based on the format string text.
*/
# define DBGPRINTF(_fmt, ...) __cilkrts_dbgprintf(_fmt, __VA_ARGS__)
#else /* if _DEBUG && !_WIN32 */
/* Non-Windows debug logging. Someday we should make GetCurrentFiber()
* and GetWorkerFiber() do something.
*/
# include <stdio.h>
__CILKRTS_INLINE void* GetCurrentFiber() { return 0; }
__CILKRTS_INLINE void* GetWorkerFiber(__cilkrts_worker* w) { return 0; }
# define DBGPRINTF(_fmt, ...) fprintf(stderr, _fmt, __VA_ARGS__)
#endif // _DEBUG
__CILKRTS_END_EXTERN_C
#endif // ! defined(INCLUDED_BUG_DOT_H)
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