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authorUlrich Drepper <drepper@redhat.com>2003-06-22 23:55:27 +0000
committerUlrich Drepper <drepper@redhat.com>2003-06-22 23:55:27 +0000
commit6162364368b2092b2bd7b1ba26366ba9a841787a (patch)
tree484fb1a48e0bed5865f53b53e012475efec09fc5
parentb758b9cb108f37e65278f4488fad083300022ba7 (diff)
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Update.
2003-06-22 Ulrich Drepper <drepper@redhat.com> * pthreadP.h (__pthread_mutex_init_internal): Mark hidden. (__pthread_mutex_lock_internal): Likewise. (__pthread_mutex_unlock_internal): Likewise. (__pthread_mutex_unlock_usercnt): Declare. * pthread_mutex_destroy.c: Always fail if used in any way. * pthread_mutex_init.c: Update comment. * pthread_mutex_lock.c: If NO_INCR is not defined adjust __nusers. * pthread_mutex_timedlock.c: Adjust __nusers. * pthread_mutex_trylock.c: Adjust __nusers. * pthread_mutex_unlock.c: Old code is in __pthread_mutex_unlock_usercnt and public interfaces are wrapper with pass additional parameter. __pthread_mutex_unlock_usercnt does not adjust __nusers if second parameter zero. * tst-mutex8.c: New file. * Makefile (tests): Add tst-mutex8. * sysdeps/pthread/pthread_cond_timedwait.c: Call __pthread_mutex_unlock_usercnt. * sysdeps/pthread/pthread_cond_wait.c: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: Likewise. * sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c: Define NO_INCR. * sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h (pthread_mutex_t): Add __nusers. * sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h: Likewise. * pthread_mutex_lock.c: Don't store THREAD_ID in __owner, use TID. * pthread_mutex_timedlock.c: Likewise. * pthread_mutex_trylock.c: Adjust __nusers. * pthread_mutex_unlock.c: Compare with TID not THREAD_ID. * tst-mutex9.c: New file. * Makefile (tests): Add tst-mutex9. * sysdeps/i386/tls.h: Remove THREAD_ID definition. * sysdeps/ia64/tls.h: Likewise. * sysdeps/powerpc/tls.h: Likewise. * sysdeps/s390/tls.h: Likewise. * sysdeps/sh/tls.h: Likewise. * sysdeps/x86_64/tls.h: Likewise. * sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h (pthread_mutex_t): Change type of __owner. * sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h: Likewise.
-rw-r--r--nptl/ChangeLog53
-rw-r--r--nptl/Makefile2
-rw-r--r--nptl/pthread_mutex_destroy.c4
-rw-r--r--nptl/pthread_mutex_init.c5
-rw-r--r--nptl/pthread_mutex_lock.c8
-rw-r--r--nptl/pthread_mutex_timedlock.c9
-rw-r--r--nptl/pthread_mutex_trylock.c7
-rw-r--r--nptl/pthread_mutex_unlock.c21
-rw-r--r--nptl/sysdeps/i386/tls.h6
-rw-r--r--nptl/sysdeps/ia64/tls.h4
-rw-r--r--nptl/sysdeps/powerpc/tls.h4
-rw-r--r--nptl/sysdeps/pthread/pthread_cond_timedwait.c2
-rw-r--r--nptl/sysdeps/pthread/pthread_cond_wait.c2
-rw-r--r--nptl/sysdeps/s390/tls.h4
-rw-r--r--nptl/sysdeps/sh/tls.h7
-rw-r--r--nptl/sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h3
-rw-r--r--nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S19
-rw-r--r--nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S19
-rw-r--r--nptl/sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h3
-rw-r--r--nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h8
-rw-r--r--nptl/sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c1
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h8
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h3
-rw-r--r--nptl/sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h3
-rw-r--r--nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S3
-rw-r--r--nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S3
-rw-r--r--nptl/sysdeps/x86_64/tls.h4
-rw-r--r--nptl/tst-mutex8.c367
-rw-r--r--nptl/tst-mutex9.c194
29 files changed, 700 insertions, 76 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 26b8909..c6047d3 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,56 @@
+2003-06-22 Ulrich Drepper <drepper@redhat.com>
+
+ * pthreadP.h (__pthread_mutex_init_internal): Mark hidden.
+ (__pthread_mutex_lock_internal): Likewise.
+ (__pthread_mutex_unlock_internal): Likewise.
+ (__pthread_mutex_unlock_usercnt): Declare.
+ * pthread_mutex_destroy.c: Always fail if used in any way.
+ * pthread_mutex_init.c: Update comment.
+ * pthread_mutex_lock.c: If NO_INCR is not defined adjust __nusers.
+ * pthread_mutex_timedlock.c: Adjust __nusers.
+ * pthread_mutex_trylock.c: Adjust __nusers.
+ * pthread_mutex_unlock.c: Old code is in __pthread_mutex_unlock_usercnt
+ and public interfaces are wrapper with pass additional parameter.
+ __pthread_mutex_unlock_usercnt does not adjust __nusers if second
+ parameter zero.
+ * tst-mutex8.c: New file.
+ * Makefile (tests): Add tst-mutex8.
+ * sysdeps/pthread/pthread_cond_timedwait.c: Call
+ __pthread_mutex_unlock_usercnt.
+ * sysdeps/pthread/pthread_cond_wait.c: Likewise.
+ * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S: Likewise.
+ * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S: Likewise.
+ * sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: Likewise.
+ * sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: Likewise.
+ * sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c: Define NO_INCR.
+ * sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h (pthread_mutex_t):
+ Add __nusers.
+ * sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h: Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: Likewise.
+ * sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h: Likewise.
+ * sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: Likewise.
+ * sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h: Likewise.
+
+ * pthread_mutex_lock.c: Don't store THREAD_ID in __owner, use TID.
+ * pthread_mutex_timedlock.c: Likewise.
+ * pthread_mutex_trylock.c: Adjust __nusers.
+ * pthread_mutex_unlock.c: Compare with TID not THREAD_ID.
+ * tst-mutex9.c: New file.
+ * Makefile (tests): Add tst-mutex9.
+ * sysdeps/i386/tls.h: Remove THREAD_ID definition.
+ * sysdeps/ia64/tls.h: Likewise.
+ * sysdeps/powerpc/tls.h: Likewise.
+ * sysdeps/s390/tls.h: Likewise.
+ * sysdeps/sh/tls.h: Likewise.
+ * sysdeps/x86_64/tls.h: Likewise.
+ * sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h (pthread_mutex_t):
+ Change type of __owner.
+ * sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h: Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: Likewise.
+ * sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h: Likewise.
+ * sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: Likewise.
+ * sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h: Likewise.
+
2003-06-19 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/ia64/sem_post.c: Move to...
diff --git a/nptl/Makefile b/nptl/Makefile
index 349f3ac..a6aa8c2 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -187,7 +187,7 @@ omit-deps = $(unix-syscalls:%=ptw-%)
tests = tst-attr1 tst-attr2 \
tst-mutex1 tst-mutex2 tst-mutex3 tst-mutex4 tst-mutex5 tst-mutex6 \
- tst-mutex7 \
+ tst-mutex7 tst-mutex8 tst-mutex9 \
tst-spin1 tst-spin2 tst-spin3 \
tst-cond1 tst-cond2 tst-cond3 tst-cond4 tst-cond5 tst-cond6 tst-cond7 \
tst-cond8 tst-cond9 tst-cond10 tst-cond11 \
diff --git a/nptl/pthread_mutex_destroy.c b/nptl/pthread_mutex_destroy.c
index dec390c..91ccfb0 100644
--- a/nptl/pthread_mutex_destroy.c
+++ b/nptl/pthread_mutex_destroy.c
@@ -25,9 +25,7 @@ int
__pthread_mutex_destroy (mutex)
pthread_mutex_t *mutex;
{
- if (__builtin_expect (mutex->__data.__kind == PTHREAD_MUTEX_ERRORCHECK_NP,
- 0)
- && lll_mutex_trylock (mutex->__data.__lock) != 0)
+ if (mutex->__data.__nusers != 0)
return EBUSY;
return 0;
diff --git a/nptl/pthread_mutex_init.c b/nptl/pthread_mutex_init.c
index 038e09d..a95f97a 100644
--- a/nptl/pthread_mutex_init.c
+++ b/nptl/pthread_mutex_init.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@@ -48,7 +48,8 @@ __pthread_mutex_init (mutex, mutexattr)
/* Default values: mutex not used yet. */
// mutex->__count = 0; already done by memset
- // mutex->__owner = NULL; already done by memset
+ // mutex->__owner = 0; already done by memset
+ // mutex->__nusers = 0; already done by memset
return 0;
}
diff --git a/nptl/pthread_mutex_lock.c b/nptl/pthread_mutex_lock.c
index 4fdb137..9c61aa7 100644
--- a/nptl/pthread_mutex_lock.c
+++ b/nptl/pthread_mutex_lock.c
@@ -31,7 +31,7 @@ int
__pthread_mutex_lock (mutex)
pthread_mutex_t *mutex;
{
- struct pthread *id = THREAD_ID;
+ pid_t id = THREAD_GETMEM (THREAD_SELF, tid);
switch (__builtin_expect (mutex->__data.__kind, PTHREAD_MUTEX_TIMED_NP))
{
@@ -55,6 +55,9 @@ __pthread_mutex_lock (mutex)
/* Record the ownership. */
mutex->__data.__owner = id;
mutex->__data.__count = 1;
+#ifndef NO_INCR
+ ++mutex->__data.__nusers;
+#endif
}
break;
@@ -74,6 +77,9 @@ __pthread_mutex_lock (mutex)
LLL_MUTEX_LOCK (mutex->__data.__lock);
/* Record the ownership. */
mutex->__data.__owner = id;
+#ifndef NO_INCR
+ ++mutex->__data.__nusers;
+#endif
break;
}
diff --git a/nptl/pthread_mutex_timedlock.c b/nptl/pthread_mutex_timedlock.c
index f24f91d..8efc422 100644
--- a/nptl/pthread_mutex_timedlock.c
+++ b/nptl/pthread_mutex_timedlock.c
@@ -27,7 +27,7 @@ pthread_mutex_timedlock (mutex, abstime)
pthread_mutex_t *mutex;
const struct timespec *abstime;
{
- struct pthread *id = THREAD_ID;
+ pid_t id = THREAD_GETMEM (THREAD_SELF, tid);
int result = 0;
/* We must not check ABSTIME here. If the thread does not block
@@ -80,8 +80,11 @@ pthread_mutex_timedlock (mutex, abstime)
}
if (result == 0)
- /* Record the ownership. */
- mutex->__data.__owner = id;
+ {
+ /* Record the ownership. */
+ mutex->__data.__owner = id;
+ ++mutex->__data.__nusers;
+ }
out:
return result;
diff --git a/nptl/pthread_mutex_trylock.c b/nptl/pthread_mutex_trylock.c
index c61d7d5..b164e02 100644
--- a/nptl/pthread_mutex_trylock.c
+++ b/nptl/pthread_mutex_trylock.c
@@ -26,12 +26,13 @@ int
__pthread_mutex_trylock (mutex)
pthread_mutex_t *mutex;
{
- struct pthread *id = THREAD_ID;
+ pid_t *id;
switch (__builtin_expect (mutex->__data.__kind, PTHREAD_MUTEX_TIMED_NP))
{
/* Recursive mutex. */
case PTHREAD_MUTEX_RECURSIVE_NP:
+ id = THREAD_GETMEM (THREAD_SELF, tid);
/* Check whether we already hold the mutex. */
if (mutex->__data.__owner == id)
{
@@ -49,6 +50,7 @@ __pthread_mutex_trylock (mutex)
/* Record the ownership. */
mutex->__data.__owner = id;
mutex->__data.__count = 1;
+ ++mutex->__data.__nusers;
return 0;
}
break;
@@ -63,7 +65,8 @@ __pthread_mutex_trylock (mutex)
if (lll_mutex_trylock (mutex->__data.__lock) == 0)
{
/* Record the ownership. */
- mutex->__data.__owner = id;
+ mutex->__data.__owner = THREAD_GETMEM (THREAD_SELF, tid);
+ ++mutex->__data.__nusers;
return 0;
}
diff --git a/nptl/pthread_mutex_unlock.c b/nptl/pthread_mutex_unlock.c
index 975127d..56b1cd4 100644
--- a/nptl/pthread_mutex_unlock.c
+++ b/nptl/pthread_mutex_unlock.c
@@ -23,14 +23,16 @@
int
-__pthread_mutex_unlock (mutex)
+internal_function
+__pthread_mutex_unlock_usercnt (mutex, decr)
pthread_mutex_t *mutex;
+ bool decr;
{
switch (__builtin_expect (mutex->__data.__kind, PTHREAD_MUTEX_TIMED_NP))
{
case PTHREAD_MUTEX_RECURSIVE_NP:
/* Recursive mutex. */
- if (mutex->__data.__owner != THREAD_ID)
+ if (mutex->__data.__owner != THREAD_GETMEM (THREAD_SELF, tid))
return EPERM;
if (--mutex->__data.__count != 0)
@@ -40,7 +42,7 @@ __pthread_mutex_unlock (mutex)
case PTHREAD_MUTEX_ERRORCHECK_NP:
/* Error checking mutex. */
- if (mutex->__data.__owner != THREAD_ID
+ if (mutex->__data.__owner != THREAD_GETMEM (THREAD_SELF, tid)
|| ! lll_mutex_islocked (mutex->__data.__lock))
return EPERM;
break;
@@ -54,12 +56,23 @@ __pthread_mutex_unlock (mutex)
}
/* Always reset the owner field. */
- mutex->__data.__owner = NULL;
+ mutex->__data.__owner = 0;
+ if (decr)
+ /* One less user. */
+ --mutex->__data.__nusers;
/* Unlock. */
lll_mutex_unlock (mutex->__data.__lock);
return 0;
}
+
+
+int
+__pthread_mutex_unlock (mutex)
+ pthread_mutex_t *mutex;
+{
+ return __pthread_mutex_unlock_usercnt (mutex, true);
+}
strong_alias (__pthread_mutex_unlock, pthread_mutex_unlock)
strong_alias (__pthread_mutex_unlock, __pthread_mutex_unlock_internal)
diff --git a/nptl/sysdeps/i386/tls.h b/nptl/sysdeps/i386/tls.h
index e0fc9ee..85d6473 100644
--- a/nptl/sysdeps/i386/tls.h
+++ b/nptl/sysdeps/i386/tls.h
@@ -248,13 +248,9 @@ union user_desc_init
# define THREAD_SELF \
({ struct pthread *__self; \
asm ("movl %%gs:%c1,%0" : "=r" (__self) \
- : "i" (offsetof (struct pthread, header.self))); \
+ : "i" (offsetof (struct pthread, header.self))); \
__self;})
-/* Identifier for the current thread. THREAD_SELF is usable but
- sometimes more expensive than necessary. It is fine here. */
-# define THREAD_ID THREAD_SELF
-
/* Read member of the thread descriptor directly. */
# define THREAD_GETMEM(descr, member) \
diff --git a/nptl/sysdeps/ia64/tls.h b/nptl/sysdeps/ia64/tls.h
index 5ce7473..8a13a59 100644
--- a/nptl/sysdeps/ia64/tls.h
+++ b/nptl/sysdeps/ia64/tls.h
@@ -113,10 +113,6 @@ register struct pthread *__thread_self __asm__("r13");
/* Return the thread descriptor for the current thread. */
# define THREAD_SELF (__thread_self - 1)
-/* Identifier for the current thread. THREAD_SELF is usable but
- sometimes more expensive than necessary as in this case. */
-# define THREAD_ID __thread_self
-
/* Access to data in the thread descriptor is easy. */
#define THREAD_GETMEM(descr, member) \
descr->member
diff --git a/nptl/sysdeps/powerpc/tls.h b/nptl/sysdeps/powerpc/tls.h
index 70aff09..6573bb6 100644
--- a/nptl/sysdeps/powerpc/tls.h
+++ b/nptl/sysdeps/powerpc/tls.h
@@ -129,10 +129,6 @@ register void *__thread_register __asm__ ("r13");
((struct pthread *) (__thread_register \
- TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE))
-/* Identifier for the current thread. THREAD_SELF is usable but
- sometimes more expensive than necessary as in this case. */
-# define THREAD_ID __thread_register
-
/* Read member of the thread descriptor directly. */
# define THREAD_GETMEM(descr, member) ((void)(descr), (THREAD_SELF)->member)
diff --git a/nptl/sysdeps/pthread/pthread_cond_timedwait.c b/nptl/sysdeps/pthread/pthread_cond_timedwait.c
index 4dd6f2e..7f7d208 100644
--- a/nptl/sysdeps/pthread/pthread_cond_timedwait.c
+++ b/nptl/sysdeps/pthread/pthread_cond_timedwait.c
@@ -56,7 +56,7 @@ __pthread_cond_timedwait (cond, mutex, abstime)
lll_mutex_lock (cond->__data.__lock);
/* Now we can release the mutex. */
- int err = __pthread_mutex_unlock_internal (mutex);
+ int err = __pthread_mutex_unlock_usercnt (mutex, 0);
if (err)
{
lll_mutex_unlock (cond->__data.__lock);
diff --git a/nptl/sysdeps/pthread/pthread_cond_wait.c b/nptl/sysdeps/pthread/pthread_cond_wait.c
index da94cc2..75edf3d 100644
--- a/nptl/sysdeps/pthread/pthread_cond_wait.c
+++ b/nptl/sysdeps/pthread/pthread_cond_wait.c
@@ -82,7 +82,7 @@ __pthread_cond_wait (cond, mutex)
lll_mutex_lock (cond->__data.__lock);
/* Now we can release the mutex. */
- err = __pthread_mutex_unlock_internal (mutex);
+ err = __pthread_mutex_unlock_usercnt (mutex, 0);
if (err)
{
lll_mutex_unlock (cond->__data.__lock);
diff --git a/nptl/sysdeps/s390/tls.h b/nptl/sysdeps/s390/tls.h
index 89e51ff..06237ae 100644
--- a/nptl/sysdeps/s390/tls.h
+++ b/nptl/sysdeps/s390/tls.h
@@ -137,10 +137,6 @@ typedef struct
/* Return the thread descriptor for the current thread. */
# define THREAD_SELF ((struct pthread *) __builtin_thread_pointer ())
-/* Identifier for the current thread. THREAD_SELF is usable but
- sometimes more expensive than necessary. It is fine here. */
-# define THREAD_ID THREAD_SELF
-
/* Access to data in the thread descriptor is easy. */
#define THREAD_GETMEM(descr, member) \
descr->member
diff --git a/nptl/sysdeps/sh/tls.h b/nptl/sysdeps/sh/tls.h
index a6cefa0..1e27b98 100644
--- a/nptl/sysdeps/sh/tls.h
+++ b/nptl/sysdeps/sh/tls.h
@@ -117,13 +117,6 @@ typedef struct
__asm ("stc gbr,%0" : "=r" (__self)); \
__self - 1;})
-/* Identifier for the current thread. THREAD_SELF is usable but
- sometimes more expensive than necessary as in this case. */
-# define THREAD_ID \
- ({ struct pthread *__self; \
- __asm ("stc gbr,%0" : "=r" (__self)); \
- __self;})
-
/* Read member of the thread descriptor directly. */
# define THREAD_GETMEM(descr, member) (descr->member)
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h b/nptl/sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h
index 256589d..a098106 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h
+++ b/nptl/sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h
@@ -51,10 +51,11 @@ typedef union
{
int __lock;
unsigned int __count;
- struct pthread *__owner;
+ int __owner;
/* KIND must stay at this position in the structure to maintain
binary compatibility. */
int __kind;
+ unsigned int __nusers;
} __data;
char __size[__SIZEOF_PTHREAD_MUTEX_T];
long int __align;
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
index 5eec268..2f59898 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
@@ -72,9 +72,8 @@ __pthread_cond_timedwait:
movl %eax, dep_mutex(%ebx)
/* Unlock the mutex. */
- pushl %eax
-.Lpush4:
- call __pthread_mutex_unlock_internal
+ xorl %edx, %edx
+ call __pthread_mutex_unlock_usercnt
testl %eax, %eax
jne 16f
@@ -90,7 +89,7 @@ __pthread_cond_timedwait:
#else
leal __condvar_cleanup, %eax
#endif
- subl $40, %esp
+ subl $44, %esp
.Lsubl:
leal 28(%esp), %edx
movl %esp, 8(%esp)
@@ -299,15 +298,15 @@ __pthread_cond_timedwait:
/* The initial unlocking of the mutex failed. */
16:
.LSbl3:
- movl %eax, (%esp)
LOCK
#if cond_lock == 0
subl $1, (%ebx)
#else
subl $1, cond_lock(%ebx)
#endif
- jne 17f
+ jne 18b
+ movl %eax, %esi
#if cond_lock == 0
movl %ebx, %eax
#else
@@ -315,7 +314,7 @@ __pthread_cond_timedwait:
#endif
call __lll_mutex_unlock_wake
-17: popl %eax
+ movl %esi, %eax
jmp 18b
#if defined __NR_clock_gettime && !defined __ASSUME_POSIX_TIMERS
@@ -411,10 +410,8 @@ versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait,
.uleb128 20
.byte 0x83 # DW_CFA_offset %ebx
.uleb128 5
- .byte 0x40+.Lpush4-.Lpush_ebx # DW_CFA_advance_loc+N
- .byte 14 # DW_CFA_def_cfa_offset
- .uleb128 24
- .byte 0x40+.Lsubl-.Lpush4 # DW_CFA_advance_loc+N
+ .byte 2 # DW_CFA_advance_loc1
+ .byte .Lsubl-.Lpush_ebx
.byte 14 # DW_CFA_def_cfa_offset
.uleb128 64
.byte 3 # DW_CFA_advance_loc2
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S
index 61d3d8d..c98899a 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S
@@ -127,9 +127,8 @@ __pthread_cond_wait:
movl %eax, dep_mutex(%ebx)
/* Unlock the mutex. */
- pushl %eax
-.Lpush4:
- call __pthread_mutex_unlock_internal
+ xorl %edx, %edx
+ call __pthread_mutex_unlock_usercnt
testl %eax, %eax
jne 12f
@@ -145,7 +144,7 @@ __pthread_cond_wait:
#else
leal __condvar_cleanup, %eax
#endif
- subl $32, %esp
+ subl $36, %esp
.Lsubl:
leal 20(%esp), %edx
movl %esp, 8(%esp)
@@ -289,15 +288,15 @@ __pthread_cond_wait:
/* The initial unlocking of the mutex failed. */
12:
.LSbl3:
- movl %eax, (%esp)
LOCK
#if cond_lock == 0
subl $1, (%ebx)
#else
subl $1, cond_lock(%ebx)
#endif
- jne 13f
+ jne 14b
+ movl %eax, %esi
#if cond_lock == 0
movl %ebx, %eax
#else
@@ -305,7 +304,7 @@ __pthread_cond_wait:
#endif
call __lll_mutex_unlock_wake
-13: popl %eax
+ movl %esi, %eax
jmp 14b
.LENDCODE:
.size __pthread_cond_wait, .-__pthread_cond_wait
@@ -371,10 +370,8 @@ versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait,
.uleb128 16
.byte 0x83 # DW_CFA_offset %ebx
.uleb128 4
- .byte 0x40+.Lpush4-.Lpush_ebx # DW_CFA_advance_loc+N
- .byte 14 # DW_CFA_def_cfa_offset
- .uleb128 20
- .byte 0x40+.Lsubl-.Lpush4 # DW_CFA_advance_loc+N
+ .byte 2 # DW_CFA_advance_loc1
+ .byte .Lsubl-.Lpush_ebx
.byte 14 # DW_CFA_def_cfa_offset
.uleb128 52
.byte 2 # DW_CFA_advance_loc1
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h b/nptl/sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h
index afd2f31..c1eca62 100644
--- a/nptl/sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h
@@ -51,7 +51,8 @@ typedef union
{
int __lock;
unsigned int __count;
- struct pthread *__owner;
+ int __owner;
+ unsigned int __nusers;
/* KIND must stay at this position in the structure to maintain
binary compatibility. */
int __kind;
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h b/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h
index 8f3e64d..f827b30 100644
--- a/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h
@@ -66,10 +66,16 @@ typedef union
{
int __lock;
unsigned int __count;
- struct pthread *__owner;
+ int __owner;
+#if __WORDSIZE == 64
+ unsigned int __nusers;
+#endif
/* KIND must stay at this position in the structure to maintain
binary compatibility. */
int __kind;
+#if __WORDSIZE != 64
+ unsigned int __nusers;
+#endif
} __data;
char __size[__SIZEOF_PTHREAD_MUTEX_T];
long int __align;
diff --git a/nptl/sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c b/nptl/sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c
index 893a5e9..d253c72 100644
--- a/nptl/sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c
+++ b/nptl/sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c
@@ -2,5 +2,6 @@
#define LLL_MUTEX_LOCK(mutex) lll_mutex_cond_lock(mutex)
#define __pthread_mutex_lock __pthread_mutex_cond_lock
+#define NO_INCR
#include <nptl/pthread_mutex_lock.c>
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h b/nptl/sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h
index e34875f..2d37683 100644
--- a/nptl/sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h
+++ b/nptl/sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h
@@ -65,10 +65,16 @@ typedef union
{
int __lock;
unsigned int __count;
- struct pthread *__owner;
+ int __owner;
+#if __WORDSIZE == 64
+ unsigned int __nusers;
+#endif
/* KIND must stay at this position in the structure to maintain
binary compatibility. */
int __kind;
+#if __WORDSIZE != 64
+ unsigned int __nusers;
+#endif
} __data;
char __size[__SIZEOF_PTHREAD_MUTEX_T];
long int __align;
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h b/nptl/sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h
index 1eeae70..8236fd7 100644
--- a/nptl/sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h
+++ b/nptl/sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h
@@ -52,10 +52,11 @@ typedef union
{
int __lock;
unsigned int __count;
- struct pthread *__owner;
+ int __owner;
/* KIND must stay at this position in the structure to maintain
binary compatibility. */
int __kind;
+ unsigned int __nusers;
} __data;
char __size[__SIZEOF_PTHREAD_MUTEX_T];
long int __align;
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h b/nptl/sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h
index b2919ab..ed3050e 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h
@@ -51,7 +51,8 @@ typedef union
{
int __lock;
unsigned int __count;
- struct pthread *__owner;
+ int __owner;
+ unsigned int __nusers;
/* KIND must stay at this position in the structure to maintain
binary compatibility. */
int __kind;
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
index b64953b..b2b4449 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
@@ -91,7 +91,8 @@ __pthread_cond_timedwait:
/* Unlock the mutex. */
2: movq 16(%rsp), %rdi
- callq __pthread_mutex_unlock_internal
+ xorq %rsi, %rsi
+ callq __pthread_mutex_unlock_usercnt
testl %eax, %eax
jne 16f
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
index 2c6c6ce..3942faf 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
@@ -136,7 +136,8 @@ __pthread_cond_wait:
/* Unlock the mutex. */
2: movq 16(%rsp), %rdi
- callq __pthread_mutex_unlock_internal
+ xorq %rsi, %rsi
+ callq __pthread_mutex_unlock_usercnt
testl %eax, %eax
jne 12f
diff --git a/nptl/sysdeps/x86_64/tls.h b/nptl/sysdeps/x86_64/tls.h
index 973b242..999c3aa 100644
--- a/nptl/sysdeps/x86_64/tls.h
+++ b/nptl/sysdeps/x86_64/tls.h
@@ -161,10 +161,6 @@ typedef struct
: "i" (offsetof (struct pthread, header.self))); \
__self;})
-/* Identifier for the current thread. THREAD_SELF is usable but
- sometimes more expensive than necessary. It is fine here. */
-# define THREAD_ID THREAD_SELF
-
/* Read member of the thread descriptor directly. */
# define THREAD_GETMEM(descr, member) \
diff --git a/nptl/tst-mutex8.c b/nptl/tst-mutex8.c
new file mode 100644
index 0000000..80ebe71
--- /dev/null
+++ b/nptl/tst-mutex8.c
@@ -0,0 +1,367 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* This test checks behavior not required by POSIX. */
+#include <errno.h>
+#include <pthread.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+
+static pthread_mutex_t *m;
+static pthread_barrier_t b;
+static pthread_cond_t c;
+static bool done;
+
+
+static void
+cl (void *arg)
+{
+ if (pthread_mutex_unlock (m) != 0)
+ {
+ puts ("cl: mutex_unlocked failed");
+ exit (1);
+ }
+}
+
+
+static void *
+tf (void *arg)
+{
+ if (pthread_mutex_lock (m) != 0)
+ {
+ puts ("tf: mutex_lock failed");
+ return (void *) 1l;
+ }
+
+ int e = pthread_barrier_wait (&b);
+ if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("barrier_wait failed");
+ return (void *) 1l;
+ }
+
+ if (arg == NULL)
+ do
+ if (pthread_cond_wait (&c, m) != 0)
+ {
+ puts ("tf: cond_wait failed");
+ return (void *) 1l;
+ }
+ while (! done);
+ else
+ do
+ {
+ pthread_cleanup_push (cl, NULL);
+
+ if (pthread_cond_wait (&c, m) != 0)
+ {
+ puts ("tf: cond_wait failed");
+ return (void *) 1l;
+ }
+
+ pthread_cleanup_pop (0);
+ }
+ while (! done);
+
+ if (pthread_mutex_unlock (m) != 0)
+ {
+ puts ("tf: mutex_unlock failed");
+ return (void *) 1l;
+ }
+
+ return NULL;
+}
+
+
+static int
+check_type (const char *mas, pthread_mutexattr_t *ma)
+{
+ if (pthread_mutex_init (m, ma) != 0)
+ {
+ printf ("1st mutex_init failed for %s\n", mas);
+ return 1;
+ }
+
+ if (pthread_mutex_destroy (m) != 0)
+ {
+ printf ("immediate mutex_destroy failed for %s\n", mas);
+ return 1;
+ }
+
+ if (pthread_mutex_init (m, ma) != 0)
+ {
+ printf ("2nd mutex_init failed for %s\n", mas);
+ return 1;
+ }
+
+ if (pthread_mutex_lock (m) != 0)
+ {
+ printf ("1st mutex_lock failed for %s\n", mas);
+ return 1;
+ }
+
+ int e = pthread_mutex_destroy (m);
+ if (e == 0)
+ {
+ printf ("mutex_destroy of self-locked mutex succeeded for %s\n", mas);
+ return 1;
+ }
+ if (e != EBUSY)
+ {
+ printf ("mutex_destroy of self-locked mutex did not return EBUSY %s\n",
+ mas);
+ return 1;
+ }
+
+ if (pthread_mutex_unlock (m) != 0)
+ {
+ printf ("1st mutex_unlock failed for %s\n", mas);
+ return 1;
+ }
+
+ if (pthread_mutex_trylock (m) != 0)
+ {
+ printf ("mutex_trylock failed for %s\n", mas);
+ return 1;
+ }
+
+ e = pthread_mutex_destroy (m);
+ if (e == 0)
+ {
+ printf ("mutex_destroy of self-trylocked mutex succeeded for %s\n", mas);
+ return 1;
+ }
+ if (e != EBUSY)
+ {
+ printf ("\
+mutex_destroy of self-trylocked mutex did not return EBUSY %s\n",
+ mas);
+ return 1;
+ }
+
+ if (pthread_mutex_unlock (m) != 0)
+ {
+ printf ("2nd mutex_unlock failed for %s\n", mas);
+ return 1;
+ }
+
+ pthread_t th;
+ if (pthread_create (&th, NULL, tf, NULL) != 0)
+ {
+ puts ("1st create failed");
+ return 1;
+ }
+ done = false;
+
+ e = pthread_barrier_wait (&b);
+ if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("1st barrier_wait failed");
+ return 1;
+ }
+
+ if (pthread_mutex_lock (m) != 0)
+ {
+ printf ("2nd mutex_lock failed for %s\n", mas);
+ return 1;
+ }
+
+ if (pthread_mutex_unlock (m) != 0)
+ {
+ printf ("3rd mutex_unlock failed for %s\n", mas);
+ return 1;
+ }
+
+ e = pthread_mutex_destroy (m);
+ if (e == 0)
+ {
+ printf ("mutex_destroy of condvar-used mutex succeeded for %s\n", mas);
+ return 1;
+ }
+ if (e != EBUSY)
+ {
+ printf ("\
+mutex_destroy of condvar-used mutex did not return EBUSY for %s\n", mas);
+ return 1;
+ }
+
+ done = true;
+ if (pthread_cond_signal (&c) != 0)
+ {
+ puts ("cond_signal failed");
+ return 1;
+ }
+
+ void *r;
+ if (pthread_join (th, &r) != 0)
+ {
+ puts ("join failed");
+ return 1;
+ }
+ if (r != NULL)
+ {
+ puts ("thread didn't return NULL");
+ return 1;
+ }
+
+ if (pthread_mutex_destroy (m) != 0)
+ {
+ printf ("mutex_destroy after condvar-use failed for %s\n", mas);
+ return 1;
+ }
+
+ if (pthread_mutex_init (m, ma) != 0)
+ {
+ printf ("3rd mutex_init failed for %s\n", mas);
+ return 1;
+ }
+
+ if (pthread_create (&th, NULL, tf, (void *) 1) != 0)
+ {
+ puts ("2nd create failed");
+ return 1;
+ }
+ done = false;
+
+ e = pthread_barrier_wait (&b);
+ if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("2nd barrier_wait failed");
+ return 1;
+ }
+
+ if (pthread_mutex_lock (m) != 0)
+ {
+ printf ("3rd mutex_lock failed for %s\n", mas);
+ return 1;
+ }
+
+ if (pthread_mutex_unlock (m) != 0)
+ {
+ printf ("4th mutex_unlock failed for %s\n", mas);
+ return 1;
+ }
+
+ e = pthread_mutex_destroy (m);
+ if (e == 0)
+ {
+ printf ("2nd mutex_destroy of condvar-used mutex succeeded for %s\n",
+ mas);
+ return 1;
+ }
+ if (e != EBUSY)
+ {
+ printf ("\
+2nd mutex_destroy of condvar-used mutex did not return EBUSY for %s\n",
+ mas);
+ return 1;
+ }
+
+ if (pthread_cancel (th) != 0)
+ {
+ puts ("cond_cancel failed");
+ return 1;
+ }
+
+ if (pthread_join (th, &r) != 0)
+ {
+ puts ("join failed");
+ return 1;
+ }
+ if (r != PTHREAD_CANCELED)
+ {
+ puts ("thread not canceled");
+ return 1;
+ }
+
+ if (pthread_mutex_destroy (m) != 0)
+ {
+ printf ("mutex_destroy after condvar-canceled failed for %s\n", mas);
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static int
+do_test (void)
+{
+ pthread_mutex_t mm;
+ m = &mm;
+
+ if (pthread_barrier_init (&b, NULL, 2) != 0)
+ {
+ puts ("barrier_init failed");
+ return 1;
+ }
+
+ if (pthread_cond_init (&c, NULL) != 0)
+ {
+ puts ("cond_init failed");
+ return 1;
+ }
+
+ puts ("check normal mutex");
+ int res = check_type ("normal", NULL);
+
+ pthread_mutexattr_t ma;
+ if (pthread_mutexattr_init (&ma) != 0)
+ {
+ puts ("1st mutexattr_init failed");
+ return 1;
+ }
+ if (pthread_mutexattr_settype (&ma, PTHREAD_MUTEX_RECURSIVE) != 0)
+ {
+ puts ("1st mutexattr_settype failed");
+ return 1;
+ }
+ puts ("check recursive mutex");
+ res |= check_type ("recursive", &ma);
+ if (pthread_mutexattr_destroy (&ma) != 0)
+ {
+ puts ("1st mutexattr_destroy failed");
+ return 1;
+ }
+
+ if (pthread_mutexattr_init (&ma) != 0)
+ {
+ puts ("2nd mutexattr_init failed");
+ return 1;
+ }
+ if (pthread_mutexattr_settype (&ma, PTHREAD_MUTEX_ERRORCHECK) != 0)
+ {
+ puts ("2nd mutexattr_settype failed");
+ return 1;
+ }
+ puts ("check error-checking mutex");
+ res |= check_type ("error-checking", &ma);
+ if (pthread_mutexattr_destroy (&ma) != 0)
+ {
+ puts ("2nd mutexattr_destroy failed");
+ return 1;
+ }
+
+ return res;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/nptl/tst-mutex9.c b/nptl/tst-mutex9.c
new file mode 100644
index 0000000..94e993c
--- /dev/null
+++ b/nptl/tst-mutex9.c
@@ -0,0 +1,194 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+
+
+static int
+do_test (void)
+{
+#if ! _POSIX_THREAD_PROCESS_SHARED
+
+ puts ("_POSIX_THREAD_PROCESS_SHARED not supported, test skipped");
+ return 0;
+
+#else
+
+ size_t ps = sysconf (_SC_PAGESIZE);
+ char tmpfname[] = "/tmp/tst-mutex9.XXXXXX";
+ char data[ps];
+ void *mem;
+ int fd;
+ pthread_mutex_t *m;
+ pthread_mutexattr_t a;
+ pid_t pid;
+ char *p;
+
+ fd = mkstemp (tmpfname);
+ if (fd == -1)
+ {
+ printf ("cannot open temporary file: %m\n");
+ return 1;
+ }
+
+ /* Make sure it is always removed. */
+ unlink (tmpfname);
+
+ /* Create one page of data. */
+ memset (data, '\0', ps);
+
+ /* Write the data to the file. */
+ if (write (fd, data, ps) != (ssize_t) ps)
+ {
+ puts ("short write");
+ return 1;
+ }
+
+ mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ if (mem == MAP_FAILED)
+ {
+ printf ("mmap failed: %m\n");
+ return 1;
+ }
+
+ m = (pthread_mutex_t *) (((uintptr_t) mem + __alignof (pthread_mutex_t))
+ & ~(__alignof (pthread_mutex_t) - 1));
+ p = (char *) (m + 1);
+
+ if (pthread_mutexattr_init (&a) != 0)
+ {
+ puts ("mutexattr_init failed");
+ return 1;
+ }
+
+ if (pthread_mutexattr_setpshared (&a, PTHREAD_PROCESS_SHARED) != 0)
+ {
+ puts ("mutexattr_setpshared failed");
+ return 1;
+ }
+
+ if (pthread_mutexattr_settype (&a, PTHREAD_MUTEX_RECURSIVE) != 0)
+ {
+ puts ("mutexattr_settype failed");
+ return 1;
+ }
+
+ if (pthread_mutex_init (m, &a) != 0)
+ {
+ puts ("mutex_init failed");
+ return 1;
+ }
+
+ if (pthread_mutex_lock (m) != 0)
+ {
+ puts ("mutex_lock failed");
+ return 1;
+ }
+
+ if (pthread_mutexattr_destroy (&a) != 0)
+ {
+ puts ("mutexattr_destroy failed");
+ return 1;
+ }
+
+ puts ("going to fork now");
+ pid = fork ();
+ if (pid == -1)
+ {
+ puts ("fork failed");
+ return 1;
+ }
+ else if (pid == 0)
+ {
+ if (pthread_mutex_trylock (m) == 0)
+ {
+ puts ("child: mutex_trylock succeeded");
+ exit (1);
+ }
+
+ if (pthread_mutex_unlock (m) == 0)
+ {
+ puts ("child: mutex_unlock succeeded");
+ exit (1);
+ }
+
+ struct timeval tv;
+ gettimeofday (&tv, NULL);
+ struct timespec ts;
+ TIMEVAL_TO_TIMESPEC (&tv, &ts);
+ ts.tv_nsec += 500000000;
+ if (ts.tv_nsec >= 1000000000)
+ {
+ ++ts.tv_sec;
+ ts.tv_nsec -= 1000000000;
+ }
+
+ int e = pthread_mutex_timedlock (m, &ts);
+ if (e == 0)
+ {
+ puts ("child: mutex_timedlock succeeded");
+ exit (1);
+ }
+ if (e != ETIMEDOUT)
+ {
+ puts ("child: mutex_timedlock didn't time out");
+ exit (1);
+ }
+
+ alarm (1);
+
+ pthread_mutex_lock (m);
+
+ puts ("child: mutex_lock returned");
+
+ exit (0);
+ }
+
+ sleep (2);
+
+ int status;
+ if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
+ {
+ puts ("waitpid failed");
+ return 1;
+ }
+ if (! WIFSIGNALED (status))
+ {
+ puts ("child not killed by signal");
+ return 1;
+ }
+ if (WTERMSIG (status) != SIGALRM)
+ {
+ puts ("child not killed by SIGALRM");
+ return 1;
+ }
+
+ return 0;
+#endif
+}
+
+#define TIMEOUT 3
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"