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1 | /**************************************************************************** |
2 | * * | |
3 | * GNAT COMPILER COMPONENTS * | |
4 | * * | |
5 | * V X _ S T A C K _ I N F O * | |
6 | * * | |
7 | * C Implementation File * | |
8 | * * | |
748086b7 | 9 | * Copyright (C) 2007-2009 Free Software Foundation, Inc. * |
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10 | * * |
11 | * GNAT is free software; you can redistribute it and/or modify it under * | |
12 | * terms of the GNU General Public License as published by the Free Soft- * | |
748086b7 | 13 | * ware Foundation; either version 3, or (at your option) any later ver- * |
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14 | * sion. GNAT is distributed in the hope that it will be useful, but WITH- * |
15 | * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * | |
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16 | * or FITNESS FOR A PARTICULAR PURPOSE. * |
17 | * * | |
18 | * As a special exception under Section 7 of GPL version 3, you are granted * | |
19 | * additional permissions described in the GCC Runtime Library Exception, * | |
20 | * version 3.1, as published by the Free Software Foundation. * | |
21 | * * | |
22 | * You should have received a copy of the GNU General Public License and * | |
23 | * a copy of the GCC Runtime Library Exception along with this program; * | |
24 | * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see * | |
25 | * <http://www.gnu.org/licenses/>. * | |
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26 | * * |
27 | * GNAT was originally developed by the GNAT team at New York University. * | |
28 | * Extensive contributions were provided by Ada Core Technologies Inc. * | |
29 | * * | |
30 | ****************************************************************************/ | |
31 | ||
32 | /* VxWorks-specific file to have access to task-specific data and be able | |
33 | to extract the stack boundaries for stack checking. */ | |
34 | ||
35 | #include <taskLib.h> | |
36 | ||
37 | typedef struct | |
38 | { | |
39 | int size; | |
40 | char *base; | |
41 | char *end; | |
42 | } stack_info; | |
43 | ||
44 | /* __gnat_get_stack_info is used by s-stchop.adb only for VxWorks. This | |
45 | procedure fills the stack information associated to the currently | |
46 | executing task. */ | |
47 | extern void __gnat_get_stack_info (stack_info *vxworks_stack_info); | |
48 | ||
49 | void | |
50 | __gnat_get_stack_info (stack_info *vxworks_stack_info) | |
51 | { | |
52 | TASK_DESC descriptor; | |
53 | ||
54 | /* Ask the VxWorks kernel about stack values */ | |
55 | taskInfoGet (taskIdSelf (), &descriptor); | |
56 | ||
57 | /* Fill the stack data with the information provided by the kernel */ | |
58 | vxworks_stack_info->size = descriptor.td_stackSize; | |
59 | vxworks_stack_info->base = descriptor.td_pStackBase; | |
60 | vxworks_stack_info->end = descriptor.td_pStackEnd; | |
61 | } |