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2004-06-15  Steven Munroe  <sjmunroe@us.ibm.com>

	* tst-context1.c (GUARD_PATTERN): Defined.
	(tst_context_t): Define struct containing ucontext_t & guard words.
	(ctx): Declare as an array of tst_context_t.
	(fct): Verify uc_link & guard words are still valid.
	(tf): Initialize guard words in ctx.  Adjust ctx refs for new struct.
This commit is contained in:
Ulrich Drepper
2004-06-18 02:40:54 +00:00
parent 7c37008632
commit 72e615009b
3 changed files with 59 additions and 11 deletions
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8
nptl/ChangeLog
View File

@@ -1,3 +1,11 @@
2004-06-15 Steven Munroe <sjmunroe@us.ibm.com>
* tst-context1.c (GUARD_PATTERN): Defined.
(tst_context_t): Define struct containing ucontext_t & guard words.
(ctx): Declare as an array of tst_context_t.
(fct): Verify uc_link & guard words are still valid.
(tf): Initialize guard words in ctx. Adjust ctx refs for new struct.
2004-06-13 Kaz Kojima <kkojima@rr.iij4u.or.jp> 2004-06-13 Kaz Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h (pthread_cond_t): * sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h (pthread_cond_t):

56
nptl/tst-context1.c
View File

@@ -25,11 +25,20 @@
#include <stdlib.h> #include <stdlib.h>
#include <ucontext.h> #include <ucontext.h>
#define N 4 #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 char stacks[N][PTHREAD_STACK_MIN];
static ucontext_t ctx[N][2]; static tst_context_t ctx[N][2];
static volatile int failures; static volatile int failures;
@@ -42,6 +51,29 @@ fct (long int n)
printf ("%ld: in %s now, on_stack = %p\n", n, __FUNCTION__, on_stack); printf ("%ld: in %s now, on_stack = %p\n", n, __FUNCTION__, on_stack);
errno = 0; 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) if (n < 0 || n >= N)
{ {
printf ("%ld out of range\n", n); printf ("%ld out of range\n", n);
@@ -61,7 +93,15 @@ tf (void *arg)
{ {
int n = (int) (long int) arg; 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); printf ("%d: cannot get context: %m\n", n);
exit (1); exit (1);
@@ -69,14 +109,14 @@ tf (void *arg)
printf ("%d: %s: before makecontext\n", n, __FUNCTION__); printf ("%d: %s: before makecontext\n", n, __FUNCTION__);
ctx[n][1].uc_stack.ss_sp = stacks[n]; ctx[n][1].uctx.uc_stack.ss_sp = stacks[n];
ctx[n][1].uc_stack.ss_size = PTHREAD_STACK_MIN; ctx[n][1].uctx.uc_stack.ss_size = PTHREAD_STACK_MIN;
ctx[n][1].uc_link = &ctx[n][0]; ctx[n][1].uctx.uc_link = &ctx[n][0].uctx;
makecontext (&ctx[n][1], (void (*) (void)) fct, 1, (long int) n); makecontext (&ctx[n][1].uctx, (void (*) (void)) fct, 1, (long int) n);
printf ("%d: %s: before swapcontext\n", n, __FUNCTION__); 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; ++failures;
printf ("%d: %s: swapcontext failed\n", n, __FUNCTION__); printf ("%d: %s: swapcontext failed\n", n, __FUNCTION__);

6
sunrpc/pmap_prot2.c
View File

@@ -93,7 +93,7 @@ xdr_pmaplist (xdrs, rp)
*/ */
bool_t more_elements; bool_t more_elements;
int freeing = (xdrs->x_op == XDR_FREE); int freeing = (xdrs->x_op == XDR_FREE);
struct pmaplist **next = NULL; struct pmaplist *next = NULL;
while (TRUE) while (TRUE)
{ {
@@ -108,12 +108,12 @@ xdr_pmaplist (xdrs, rp)
* before we free the current object ... * before we free the current object ...
*/ */
if (freeing) if (freeing)
next = &((*rp)->pml_next); next = (*rp)->pml_next;
if (!INTUSE(xdr_reference) (xdrs, (caddr_t *) rp, if (!INTUSE(xdr_reference) (xdrs, (caddr_t *) rp,
(u_int) sizeof (struct pmaplist), (u_int) sizeof (struct pmaplist),
(xdrproc_t) INTUSE(xdr_pmap))) (xdrproc_t) INTUSE(xdr_pmap)))
return FALSE; return FALSE;
rp = freeing ? next : &((*rp)->pml_next); rp = freeing ? &next : &((*rp)->pml_next);
} }
} }
INTDEF(xdr_pmaplist) INTDEF(xdr_pmaplist)