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* sysdeps/powerpc/powerpc32/dl-trampoline.S (_dl_runtime_resolve):

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Don't clobber caller's LRSAVE.
	(_dl_prof_resolve): Likewise.
This commit is contained in:
Ulrich Drepper
2006-08-14 23:11:18 +00:00
parent 107b8a922a
commit f17efcb43e
25 changed files with 1249 additions and 43 deletions
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73
nptl/pthread_mutex_trylock.c
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@ -297,6 +297,79 @@ __pthread_mutex_trylock (mutex)
return 0;
}
case PTHREAD_MUTEX_PP_RECURSIVE_NP:
case PTHREAD_MUTEX_PP_ERRORCHECK_NP:
case PTHREAD_MUTEX_PP_NORMAL_NP:
case PTHREAD_MUTEX_PP_ADAPTIVE_NP:
{
int kind = mutex->__data.__kind & PTHREAD_MUTEX_KIND_MASK_NP;
oldval = mutex->__data.__lock;
/* Check whether we already hold the mutex. */
if (mutex->__data.__owner == id)
{
if (kind == PTHREAD_MUTEX_ERRORCHECK_NP)
return EDEADLK;
if (kind == PTHREAD_MUTEX_RECURSIVE_NP)
{
/* Just bump the counter. */
if (__builtin_expect (mutex->__data.__count + 1 == 0, 0))
/* Overflow of the counter. */
return EAGAIN;
++mutex->__data.__count;
return 0;
}
}
int oldprio = -1, ceilval;
do
{
int ceiling = (oldval & PTHREAD_MUTEX_PRIO_CEILING_MASK)
>> PTHREAD_MUTEX_PRIO_CEILING_SHIFT;
if (__pthread_current_priority () > ceiling)
{
if (oldprio != -1)
__pthread_tpp_change_priority (oldprio, -1);
return EINVAL;
}
int retval = __pthread_tpp_change_priority (oldprio, ceiling);
if (retval)
return retval;
ceilval = ceiling << PTHREAD_MUTEX_PRIO_CEILING_SHIFT;
oldprio = ceiling;
oldval
= atomic_compare_and_exchange_val_acq (&mutex->__data.__lock,
ceilval | 1, ceilval);
if (oldval == ceilval)
break;
}
while ((oldval & PTHREAD_MUTEX_PRIO_CEILING_MASK) != ceilval);
if (oldval != ceilval)
{
__pthread_tpp_change_priority (oldprio, -1);
break;
}
assert (mutex->__data.__owner == 0);
/* Record the ownership. */
mutex->__data.__owner = id;
++mutex->__data.__nusers;
mutex->__data.__count = 1;
return 0;
}
break;
default:
/* Correct code cannot set any other type. */
return EINVAL;