Initial revision

1 files changed, 47 insertions, 0 deletions

diff --git a/c/src/tests/libtests/stackchk/blow.c b/c/src/tests/libtests/stackchk/blow.c
new file mode 100644
index 0000000000..9ad93d849c
--- /dev/null
+++ b/c/src/tests/libtests/stackchk/blow.c
@@ -0,0 +1,47 @@
+/*  task1.c
+ *
+ *  This set of three tasks do some simple task switching for about
+ *  15 seconds and then call a routine to "blow the stack".
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#include <rtems/system.h>
+#include <rtems/heap.h>
+#include <rtems/thread.h>
+
+void b() {}
+
+void blow_stack( void )
+{
+  volatile unsigned32 *low, *high;
+
+b();
+  /*
+   *  Destroy the first and last 16 bytes of our stack... Hope it
+   *  does not cause problems :)
+   */
+
+ low  =  _Thread_Executing->Start.Initial_stack.area + HEAP_OVERHEAD;
+ high =  _Thread_Executing->Start.Initial_stack.area +
+         _Thread_Executing->Start.Initial_stack.size - 16;
+
+ low[0] = 0x11111111;
+ low[1] = 0x22222222;
+ low[2] = 0x33333333;
+ low[3] = 0x44444444;
+
+ high[0] = 0x55555555;
+ high[1] = 0x66666666;
+ high[2] = 0x77777777;
+ high[3] = 0x88888888;
+
+}