obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 61 insertions, 0 deletions

diff --git a/gcc/ada/vx_stack_info.c b/gcc/ada/vx_stack_info.c
new file mode 100644
index 000000000..a62589250
--- /dev/null
+++ b/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;
+}