mirror of
https://github.com/autc04/Retro68.git
synced 2024-09-10 03:54:48 +00:00
91 lines
3.7 KiB
C
91 lines
3.7 KiB
C
|
/* cilk-abi-vla-internal.h -*-C++-*-
|
||
|
*
|
||
|
*************************************************************************
|
||
|
*
|
||
|
* @copyright
|
||
|
* Copyright (C) 2013, Intel Corporation
|
||
|
* All rights reserved.
|
||
|
*
|
||
|
* @copyright
|
||
|
* 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.
|
||
|
*
|
||
|
* @copyright
|
||
|
* 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.
|
||
|
**************************************************************************/
|
||
|
|
||
|
/**
|
||
|
* @file cilk-abi-vla-internal.h
|
||
|
*
|
||
|
* @brief Allocation/deallocation function for use with Variable Length
|
||
|
* Arrays in spawning functions.
|
||
|
*
|
||
|
* These should be the only functions in the Cilk runtime allocating memory
|
||
|
* from the standard C runtime heap. This memory will be provided to user
|
||
|
* code for use in VLAs, when the memory cannot be allocated from the stack.
|
||
|
*
|
||
|
* While these functions are simply passthroughs to malloc and free at the
|
||
|
* moment, once we've got the basics of VLA allocations working we'll make
|
||
|
* them do fancier tricks.
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* @brief Allocate memory from the heap for use by a Variable Length Array in
|
||
|
* a spawning function.
|
||
|
*
|
||
|
* @param sf The __cilkrts_stack_frame for the spawning function containing
|
||
|
* the VLA.
|
||
|
* @param full_size The number of bytes to be allocated, including any tags
|
||
|
* needed to identify this as allocated from the heap.
|
||
|
* @param align Any alignment necessary for the allocation.
|
||
|
*/
|
||
|
|
||
|
void *vla_internal_heap_alloc(__cilkrts_stack_frame *sf,
|
||
|
size_t full_size,
|
||
|
uint32_t align);
|
||
|
|
||
|
/**
|
||
|
* @brief Deallocate memory from the heap used by a Variable Length Array in
|
||
|
* a spawning function.
|
||
|
*
|
||
|
* @param t The address of the memory block to be freed.
|
||
|
* @param size The size of the memory block to be freed.
|
||
|
*/
|
||
|
|
||
|
void vla_internal_heap_free(void *t,
|
||
|
size_t size);
|
||
|
|
||
|
/**
|
||
|
* @brief Deallocate memory from the original stack. We'll do this by adding
|
||
|
* full_size to ff->sync_sp. So after the sync, the Variable Length Array
|
||
|
* will no longer be allocated on the stack.
|
||
|
*
|
||
|
* @param sf The __cilkrts_stack_frame for the spawning function that is
|
||
|
* deallocating a VLA.
|
||
|
* @param full_size The size of the VLA, including any alignment and tags.
|
||
|
*/
|
||
|
void vla_free_from_original_stack(__cilkrts_stack_frame *sf,
|
||
|
size_t full_size);
|