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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-04-13 09:14:56 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-04-16 14:56:10 +0200 |
commit | 0a09ac58ac2844792dd496aa3c35ce692779d9bd (patch) | |
tree | dc866f31ea41b959ac3f91fe5899cfbb48b1411c /bsps/shared | |
parent | bsps: Move bsp-uboot-board-info.c to bsps (diff) | |
download | rtems-0a09ac58ac2844792dd496aa3c35ce692779d9bd.tar.bz2 |
bsps: Move stackalloc.c to bsps
This patch is a part of the BSP source reorganization.
Update #3285.
Diffstat (limited to 'bsps/shared')
-rw-r--r-- | bsps/shared/start/stackalloc.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/bsps/shared/start/stackalloc.c b/bsps/shared/start/stackalloc.c new file mode 100644 index 0000000000..3e3b83e95e --- /dev/null +++ b/bsps/shared/start/stackalloc.c @@ -0,0 +1,65 @@ +/** + * @file + * + * @ingroup bsp_shared + * + * @brief Stack initialization, allocation and free functions. + */ + +/* + * Copyright (c) 2009-2013 embedded brains GmbH. All rights reserved. + * + * embedded brains GmbH + * Obere Lagerstr. 30 + * 82178 Puchheim + * Germany + * <rtems@embedded-brains.de> + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#include <bsp/stackalloc.h> + +#include <rtems.h> +#include <rtems/score/heapimpl.h> +#include <rtems/score/wkspace.h> + +#include <bsp/linker-symbols.h> + +static Heap_Control bsp_stack_heap; + +void bsp_stack_allocate_init(size_t stack_space_size) +{ + _Heap_Initialize( + &bsp_stack_heap, + bsp_section_stack_begin, + (uintptr_t) bsp_section_stack_size, + CPU_STACK_ALIGNMENT + ); +} + +void *bsp_stack_allocate(size_t size) +{ + void *stack = NULL; + + if (bsp_stack_heap.area_begin != 0) { + stack = _Heap_Allocate(&bsp_stack_heap, size); + } + + if (stack == NULL) { + stack = _Workspace_Allocate(size); + } + + return stack; +} + +void bsp_stack_free(void *stack) +{ + bool ok = _Heap_Free(&bsp_stack_heap, stack); + + if (!ok) { + _Workspace_Free(stack); + } +} |