* gthr.h: Changed the comment about return values.
* gthr-solaris.h (__gthread_once): Do not use errno; return the
error number instead of -1.
(__gthread_key_create): Any non-zero return value is an error.
* libgcc2.c (eh_context_initialize): Check for non-zero return
value from __gthread_once.
Check that the value of get_eh_context was really changed.
From-SVN: r18480
+Wed Mar 11 12:05:20 1998 Teemu Torma <tot@trema.com>
+
+ * gthr.h: Changed the comment about return values.
+ * gthr-solaris.h (__gthread_once): Do not use errno; return the
+ error number instead of -1.
+ (__gthread_key_create): Any non-zero return value is an error.
+ * libgcc2.c (eh_context_initialize): Check for non-zero return
+ value from __gthread_once.
+ Check that the value of get_eh_context was really changed.
+
Wed Mar 11 18:26:25 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
* sh.h (LOOP_ALIGN): Only align when optimizing.
return -1;
if (once == 0 || func == 0)
- {
- errno = EINVAL;
- return -1;
- }
+ return EINVAL;
if (once->once == 0)
{
- if (mutex_lock (&once->mutex) != 0)
- return -1;
+ int status = mutex_lock (&once->mutex);
+ if (status != 0)
+ return status;
if (once->once == 0)
{
(*func) ();
/* Solaris 2.5 contains thr_* routines no-op in libc, so test if we actually
got a reasonable key value, and if not, fail. */
*key = -1;
- if (thr_keycreate (key, dtor) == -1 || *key == -1)
+ if (thr_keycreate (key, dtor) != 0 || *key == -1)
return -1;
else
return 0;
int __gthread_mutex_trylock (__gthread_mutex_t *mutex);
int __gthread_mutex_unlock (__gthread_mutex_t *mutex);
- All functions returning int should return 0 on success, -1 on error.
+ All functions returning int should return zero on success or the error
+ number. If the operation is not supported, -1 is returned.
Currently supported threads packages are
POSIX threads with -D_PTHREADS
#if __GTHREADS
static __gthread_once_t once = __GTHREAD_ONCE_INIT;
- if (__gthread_once (&once, eh_threads_initialize) == -1)
+ /* Make sure that get_eh_context does not point to us anymore.
+ Some systems have dummy thread routines in their libc that
+ return a success (Solaris 2.6 for example). */
+ if (__gthread_once (&once, eh_threads_initialize) != 0
+ || get_eh_context == &eh_context_initialize)
{
/* Use static version of EH context. */
get_eh_context = &eh_context_static;