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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (C) 2021 OAR Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* 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 OWNER 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/stack.h>
#include <rtems/score/thread.h>
/**
* @brief Default stack allocator allocate for idle handler.
*
* The allocate for idle handler is optional even when the user thread stack
* allocator and deallocator are configured.
*
* The default allocator for IDLE thread stacks gets the memory from a
* statically allocated area provided via confdefs.h.
*
* @param cpu Index of the CPU for the IDLE thread using this stack
* @param stack_size The size of the stack area to allocate in bytes.
*
* @retval NULL Not enough memory (never returned).
* @retval other Pointer to begin of stack area.
*/
static void *_Stack_Allocator_allocate_for_idle_default(
uint32_t cpu,
size_t stack_size
)
{
return &_Thread_Idle_stacks[ cpu * stack_size ];
}
const Stack_Allocator_allocate_for_idle _Stack_Allocator_allocate_for_idle =
_Stack_Allocator_allocate_for_idle_default;
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