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// -*- 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.
*
******************************************************************************
*
* metacall.h
*
* This is an internal header file defining part of the metacall
* interface used by Cilkscreen. It is not a stable API and is
* subject to change without notice.
*/
// Provides the enum of metacall kinds. This is used by Cilkscreen and the
// runtime, and will probably be used by any future ptools.
#pragma once
///////////////////////////////////////////////////////////////////////////////
enum
{
// Notify Cilkscreen to stop/start instrumenting code
HYPER_DISABLE_INSTRUMENTATION = 0,
HYPER_ENABLE_INSTRUMENTATION = 1,
// Write 0 in *(char *)arg if the p-tool is sequential. The Cilk runtime
// system invokes this metacall to know whether to spawn worker threads.
HYPER_ZERO_IF_SEQUENTIAL_PTOOL = 2,
// Write 0 in *(char *)arg if the runtime must force reducers to
// call the reduce() method even if no actual stealing occurs.
HYPER_ZERO_IF_FORCE_REDUCE = 3,
// Inform cilkscreen about the current stack pointer.
HYPER_ESTABLISH_C_STACK = 4,
// Inform Cilkscreen about the current worker
HYPER_ESTABLISH_WORKER = 5,
// Tell tools to ignore a block of memory. Parameter is a 2 element
// array: void *block[2] = {_begin, _end}; _end is 1 beyond the end
// of the block to be ignored. Essentially, if p is a pointer to an
// array, _begin = &p[0], _end = &p[max]
HYPER_IGNORE_MEMORY_BLOCK = 6
// If you add metacalls here, remember to update BOTH workspan.cpp AND
// cilkscreen-common.cpp!
};
typedef struct
{
unsigned int tool; // Specifies tool metacall is for
// (eg. system=0, cilkscreen=1, cilkview=2).
// All tools should understand system codes.
// Tools should ignore all other codes, except
// their own.
unsigned int code; // Tool-specific code specifies what to do and how to
// interpret data
void *data;
} metacall_data_t;
#define METACALL_TOOL_SYSTEM 0
///////////////////////////////////////////////////////////////////////////////
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