5
Last change
on this file since 0a09ac58 was
0a09ac58,
checked in by Sebastian Huber <sebastian.huber@…>, on 04/13/18 at 07:14:56
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bsps: Move stackalloc.c to bsps
This patch is a part of the BSP source reorganization.
Update #3285.
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Property mode set to
100644
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File size:
1.2 KB
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1 | /** |
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2 | * @file |
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3 | * |
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4 | * @ingroup bsp_shared |
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5 | * |
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6 | * @brief Stack initialization, allocation and free functions. |
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7 | */ |
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8 | |
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9 | /* |
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10 | * Copyright (c) 2009-2013 embedded brains GmbH. All rights reserved. |
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11 | * |
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12 | * embedded brains GmbH |
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13 | * Obere Lagerstr. 30 |
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14 | * 82178 Puchheim |
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15 | * Germany |
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16 | * <rtems@embedded-brains.de> |
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17 | * |
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18 | * The license and distribution terms for this file may be |
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19 | * found in the file LICENSE in this distribution or at |
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20 | * http://www.rtems.org/license/LICENSE. |
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21 | */ |
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22 | |
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23 | #include <bsp/stackalloc.h> |
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24 | |
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25 | #include <rtems.h> |
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26 | #include <rtems/score/heapimpl.h> |
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27 | #include <rtems/score/wkspace.h> |
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28 | |
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29 | #include <bsp/linker-symbols.h> |
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30 | |
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31 | static Heap_Control bsp_stack_heap; |
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32 | |
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33 | void bsp_stack_allocate_init(size_t stack_space_size) |
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34 | { |
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35 | _Heap_Initialize( |
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36 | &bsp_stack_heap, |
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37 | bsp_section_stack_begin, |
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38 | (uintptr_t) bsp_section_stack_size, |
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39 | CPU_STACK_ALIGNMENT |
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40 | ); |
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41 | } |
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42 | |
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43 | void *bsp_stack_allocate(size_t size) |
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44 | { |
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45 | void *stack = NULL; |
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46 | |
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47 | if (bsp_stack_heap.area_begin != 0) { |
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48 | stack = _Heap_Allocate(&bsp_stack_heap, size); |
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49 | } |
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50 | |
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51 | if (stack == NULL) { |
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52 | stack = _Workspace_Allocate(size); |
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53 | } |
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54 | |
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55 | return stack; |
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56 | } |
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57 | |
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58 | void bsp_stack_free(void *stack) |
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59 | { |
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60 | bool ok = _Heap_Free(&bsp_stack_heap, stack); |
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61 | |
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62 | if (!ok) { |
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63 | _Workspace_Free(stack); |
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64 | } |
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65 | } |
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