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 * * 9 * Copyright (C) 2007-2009 Free Software Foundation, Inc. * 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- * 13 * ware Foundation; either version 3, or (at your option) any later ver- * 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 * 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/>. * 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 37typedef 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. */ 47extern void __gnat_get_stack_info (stack_info *vxworks_stack_info); 48 49void 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} 62