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/****************************************************************************
* *
* GNAT COMPILER COMPONENTS *
* *
* V X _ S T A C K _ I N F O *
* *
* C Implementation File *
* *
* Copyright (C) 2007-2009 Free Software Foundation, Inc. *
* *
* GNAT is free software; you can redistribute it and/or modify it under *
* terms of the GNU General Public License as published by the Free Soft- *
* ware Foundation; either version 3, or (at your option) any later ver- *
* sion. GNAT is distributed in the hope that it will be useful, but WITH- *
* OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
* or FITNESS FOR A PARTICULAR PURPOSE. *
* *
* As a special exception under Section 7 of GPL version 3, you are granted *
* additional permissions described in the GCC Runtime Library Exception, *
* version 3.1, as published by the Free Software Foundation. *
* *
* You should have received a copy of the GNU General Public License and *
* a copy of the GCC Runtime Library Exception along with this program; *
* see the files COPYING3 and COPYING.RUNTIME respectively. If not, see *
* <http://www.gnu.org/licenses/>. *
* *
* GNAT was originally developed by the GNAT team at New York University. *
* Extensive contributions were provided by Ada Core Technologies Inc. *
* *
****************************************************************************/
/* VxWorks-specific file to have access to task-specific data and be able
to extract the stack boundaries for stack checking. */
#include <taskLib.h>
typedef struct
{
int size;
char *base;
char *end;
} stack_info;
/* __gnat_get_stack_info is used by s-stchop.adb only for VxWorks. This
procedure fills the stack information associated to the currently
executing task. */
extern void __gnat_get_stack_info (stack_info *vxworks_stack_info);
void
__gnat_get_stack_info (stack_info *vxworks_stack_info)
{
TASK_DESC descriptor;
/* Ask the VxWorks kernel about stack values */
taskInfoGet (taskIdSelf (), &descriptor);
/* Fill the stack data with the information provided by the kernel */
vxworks_stack_info->size = descriptor.td_stackSize;
vxworks_stack_info->base = descriptor.td_pStackBase;
vxworks_stack_info->end = descriptor.td_pStackEnd;
}
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