forked from Imagelibrary/rtems
212663bede
- Use CamelCase as it is not used in our C code. Enables simple search and replace. - Prefix with "RTEMS" to aid deployment and integration. It aids searching and sorting. Update #3706.
66 lines
1.2 KiB
C
66 lines
1.2 KiB
C
/**
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* @file
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*
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* @ingroup bsp_stack
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*
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* @brief Stack initialization, allocation and free functions.
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*/
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/*
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* Copyright (c) 2009-2013 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Obere Lagerstr. 30
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#include <bsp/stackalloc.h>
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#include <rtems.h>
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#include <rtems/score/heapimpl.h>
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#include <rtems/score/wkspace.h>
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#include <bsp/linker-symbols.h>
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static Heap_Control bsp_stack_heap;
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void bsp_stack_allocate_init(size_t stack_space_size)
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{
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_Heap_Initialize(
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&bsp_stack_heap,
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bsp_section_stack_begin,
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(uintptr_t) bsp_section_stack_size,
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CPU_STACK_ALIGNMENT
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);
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}
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void *bsp_stack_allocate(size_t size)
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{
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void *stack = NULL;
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if (bsp_stack_heap.area_begin != 0) {
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stack = _Heap_Allocate(&bsp_stack_heap, size);
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}
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if (stack == NULL) {
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stack = _Workspace_Allocate(size);
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}
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return stack;
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}
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void bsp_stack_free(void *stack)
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{
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bool ok = _Heap_Free(&bsp_stack_heap, stack);
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if (!ok) {
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_Workspace_Free(stack);
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}
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}
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