Cleaned up configure script.

Distribution of CIL as an expanded source tree with changes applied
(instead of original .tar.gz + patches to be applied at config time).


git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1020 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e

1 files changed, 59 insertions, 0 deletions

diff --git a/cil/doc/examples/ex24.txt b/cil/doc/examples/ex24.txt
new file mode 100644
index 00000000..587ce674
--- /dev/null
+++ b/cil/doc/examples/ex24.txt
@@ -0,0 +1,59 @@
+/* Generated by CIL v. 1.3.5 */
+/* print_CIL_Input is true */
+
+extern void * stackguard_get_ra();
+extern void stackguard_set_ra(void *new_ra);
+/* You must provide an implementation for functions that get and set the
+ * return address. Such code is unfortunately architecture specific.
+ */
+struct stackguard_stack {
+  void * data;
+  struct stackguard_stack * next;
+} * stackguard_stack;
+
+void stackguard_push(void *ra) {
+  void * old = stackguard_stack;
+  stackguard_stack = (struct stackguard_stack *)
+    malloc(sizeof(stackguard_stack));
+  stackguard_stack->data = ra;
+  stackguard_stack->next = old;
+}
+
+void * stackguard_pop() {
+  void * ret = stackguard_stack->data;
+  void * next = stackguard_stack->next;
+  free(stackguard_stack);
+  stackguard_stack->next = next;
+  return ret;
+}
+#line 3 "cilcode.tmp/ex24.c"
+extern int ( /* missing proto */  scanf)() ;
+#line 1 "cilcode.tmp/ex24.c"
+int dangerous(void) 
+{ char array[10] ;
+  void *return_address ;
+
+  {
+  return_address = (void *)stackguard_get_ra();
+  stackguard_push(return_address);
+#line 3
+  scanf("%s", array);
+  {
+  return_address = (void *)stackguard_pop();
+  stackguard_set_ra(return_address);
+#line 4
+  return (0);
+  }
+}
+}
+#line 6 "cilcode.tmp/ex24.c"
+int main(void) 
+{ int tmp ;
+
+  {
+#line 7
+  tmp = dangerous();
+#line 7
+  return (tmp);
+}
+}