# define STACK_DIR stack_dir
static void
-find_stack_direction (void)
+find_stack_direction (char **ptr)
{
- static char *addr = NULL; /* Address of first `dummy', once known. */
auto char dummy; /* To get stack address. */
- if (addr == NULL)
+ if (*ptr == NULL)
{ /* Initial entry. */
- addr = ADDRESS_FUNCTION (dummy);
+ *ptr = ADDRESS_FUNCTION (dummy);
- find_stack_direction (); /* Recurse once. */
+ find_stack_direction (ptr); /* Recurse once. */
}
else
{
/* Second entry. */
- if (ADDRESS_FUNCTION (dummy) > addr)
+ if (ADDRESS_FUNCTION (dummy) > *ptr)
stack_dir = 1; /* Stack grew upward. */
else
stack_dir = -1; /* Stack grew downward. */
# if STACK_DIRECTION == 0
if (STACK_DIR == 0) /* Unknown growth direction. */
- find_stack_direction ();
+ {
+ char *addr = NULL; /* Address of first `dummy', once known. */
+ find_stack_direction (&addr);
+ }
# endif
/* Reclaim garbage, defined as all alloca'd storage that