diff options
Diffstat (limited to 'gcc-4.9/gcc/ada/vx_stack_info.c')
| -rw-r--r-- | gcc-4.9/gcc/ada/vx_stack_info.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/ada/vx_stack_info.c b/gcc-4.9/gcc/ada/vx_stack_info.c new file mode 100644 index 000000000..a62589250 --- /dev/null +++ b/gcc-4.9/gcc/ada/vx_stack_info.c @@ -0,0 +1,61 @@ +/**************************************************************************** + * * + * 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; +} |