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/* metacall_impl.h -*-C++-*-
*
*************************************************************************
*
* Copyright (C) 2010-2016, 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 metacall_impl.h
*
* @brief Meta-function calls to be used within the Cilk runtime system.
*
* These differ from the macros in cilkscreen.h and cilkview.h because they go
* through the __cilkrts_metacall interface, which ensures that the operation
* is performed even when instrumentation is disabled.
*/
#ifndef INCLUDED_CILKRTS_METACALL_H
#define INCLUDED_CILKRTS_METACALL_H
#include "rts-common.h"
#include <internal/metacall.h>
#include <cilk/common.h>
__CILKRTS_BEGIN_EXTERN_C
/**
* This function is effectively an unconditional call from the runtime into
* a tool. It is used for operations that must be performed by the tool,
* even when the tool is not instrumenting. For example, Cilkscreen always
* recognizes the address of this function and performs the action specified
* in the contained metadata.
*
* Note that this function MUST NOT BE INLINED within the runtime. This must
* be the ONLY instance of the cilkscreen_metacall metadata.
*/
CILK_API_VOID
__cilkrts_metacall(unsigned int tool, unsigned int code, void *data);
/**
* Return non-zero if running under Cilkscreen or Cilkview
*/
COMMON_PORTABLE
int __cilkrts_running_under_sequential_ptool(void);
/**
* Disable Cilkscreen implementation
*/
#define __cilkrts_cilkscreen_disable_instrumentation() \
__cilkrts_metacall(METACALL_TOOL_SYSTEM, HYPER_DISABLE_INSTRUMENTATION, 0)
/**
* Enable Cilkscreen implementation
*/
#define __cilkrts_cilkscreen_enable_instrumentation() \
__cilkrts_metacall(METACALL_TOOL_SYSTEM, HYPER_ENABLE_INSTRUMENTATION, 0)
/**
* Set the worker on entering runtime.
*
* @attention Deprecated in favor of __cilkrts_cilkscreen_ignore_block. The
* begin/enter pairs in the current metadata mean Cilkscreen no longer has to
* have improper knowledge of the __cilkrts_worker or __cilkrts_stack_frame
* structures.
*/
#define __cilkrts_cilkscreen_establish_worker(w) \
__cilkrts_metacall(METACALL_TOOL_SYSTEM, HYPER_ESTABLISH_WORKER, w)
/**
* Notify Cilkscreen of the extent of the stack.
*
* @param[in] begin Start (low address) of stack
* @param[in] end One past high address of stack
*/
void __cilkrts_cilkscreen_establish_c_stack(char *begin, char *end);
/**
* Tell tools to ignore a block of memory - currently the global state and
* memory allocated for workers.
*/
#define __cilkrts_cilkscreen_ignore_block(_begin, _end) \
{ \
void *block[2] = {_begin, _end}; \
__cilkrts_metacall(METACALL_TOOL_SYSTEM, \
HYPER_IGNORE_MEMORY_BLOCK, \
block); \
}
__CILKRTS_END_EXTERN_C
#endif /* ! defined(INCLUDED_CILKRTS_METACALL_H) */
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