#include <stdlib.h>
#include <ucontext.h>
-
#define N 4
+#if __WORDSIZE == 64
+#define GUARD_PATTERN 0xdeadbeafdeadbeaf
+#else
+#define GUARD_PATTERN 0xdeadbeaf
+#endif
+
+typedef struct {
+ ucontext_t uctx;
+ unsigned long guard[3];
+ } tst_context_t;
static char stacks[N][PTHREAD_STACK_MIN];
-static ucontext_t ctx[N][2];
+static tst_context_t ctx[N][2];
static volatile int failures;
printf ("%ld: in %s now, on_stack = %p\n", n, __FUNCTION__, on_stack);
errno = 0;
+ if (ctx[n][1].uctx.uc_link != &ctx[n][0].uctx)
+ {
+ printf ("context[%ld][1] uc_link damaged, = %p\n", n,
+ ctx[n][1].uctx.uc_link);
+ exit (1);
+ }
+
+ if ((ctx[n][0].guard[0] != GUARD_PATTERN)
+ || (ctx[n][0].guard[1] != GUARD_PATTERN)
+ || (ctx[n][0].guard[2] != GUARD_PATTERN))
+ {
+ printf ("%ld: %s context[0] overflow detected!\n", n, __FUNCTION__);
+ ++failures;
+ }
+
+ if ((ctx[n][1].guard[0] != GUARD_PATTERN)
+ || (ctx[n][1].guard[1] != GUARD_PATTERN)
+ || (ctx[n][1].guard[2] != GUARD_PATTERN))
+ {
+ printf ("%ld: %s context[1] overflow detected!\n", n, __FUNCTION__);
+ ++failures;
+ }
+
if (n < 0 || n >= N)
{
printf ("%ld out of range\n", n);
{
int n = (int) (long int) arg;
- if (getcontext (&ctx[n][1]) != 0)
+ ctx[n][0].guard[0] = GUARD_PATTERN;
+ ctx[n][0].guard[1] = GUARD_PATTERN;
+ ctx[n][0].guard[2] = GUARD_PATTERN;
+
+ ctx[n][1].guard[0] = GUARD_PATTERN;
+ ctx[n][1].guard[1] = GUARD_PATTERN;
+ ctx[n][1].guard[2] = GUARD_PATTERN;
+
+ if (getcontext (&ctx[n][1].uctx) != 0)
{
printf ("%d: cannot get context: %m\n", n);
exit (1);
printf ("%d: %s: before makecontext\n", n, __FUNCTION__);
- ctx[n][1].uc_stack.ss_sp = stacks[n];
- ctx[n][1].uc_stack.ss_size = PTHREAD_STACK_MIN;
- ctx[n][1].uc_link = &ctx[n][0];
- makecontext (&ctx[n][1], (void (*) (void)) fct, 1, (long int) n);
+ ctx[n][1].uctx.uc_stack.ss_sp = stacks[n];
+ ctx[n][1].uctx.uc_stack.ss_size = PTHREAD_STACK_MIN;
+ ctx[n][1].uctx.uc_link = &ctx[n][0].uctx;
+ makecontext (&ctx[n][1].uctx, (void (*) (void)) fct, 1, (long int) n);
printf ("%d: %s: before swapcontext\n", n, __FUNCTION__);
- if (swapcontext (&ctx[n][0], &ctx[n][1]) != 0)
+ if (swapcontext (&ctx[n][0].uctx, &ctx[n][1].uctx) != 0)
{
++failures;
printf ("%d: %s: swapcontext failed\n", n, __FUNCTION__);
*/
bool_t more_elements;
int freeing = (xdrs->x_op == XDR_FREE);
- struct pmaplist **next = NULL;
+ struct pmaplist *next = NULL;
while (TRUE)
{
* before we free the current object ...
*/
if (freeing)
- next = &((*rp)->pml_next);
+ next = (*rp)->pml_next;
if (!INTUSE(xdr_reference) (xdrs, (caddr_t *) rp,
(u_int) sizeof (struct pmaplist),
(xdrproc_t) INTUSE(xdr_pmap)))
return FALSE;
- rp = freeing ? next : &((*rp)->pml_next);
+ rp = freeing ? &next : &((*rp)->pml_next);
}
}
INTDEF(xdr_pmaplist)