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Update. 

2003-05-01  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/i386/tls.h: Define THREAD_ID.
	* 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.
	* pthread_mutex_lock.c: Use THREAD_ID instead of THREAD_SELF to
	record ownership.
	* pthread_mutex_timedlock.c: Likewise.
	* pthread_mutex_trylock.c: Likewise.
	* pthread_mutex_unlock.c: Likewise.
	* pthread_rwlock_trywrlock.c: Likewise.
	* sysdeps/pthread/pthread_rwlocklock_rdlock.c: Likewise.
	* sysdeps/pthread/pthread_rwlock_timedrdlock.c: Likewise.
	* sysdeps/pthread/pthread_rwlock_timedwrlock.c: Likewise.
	* sysdeps/pthread/pthread_rwlock_wrlock.c: Likewise.

	* sysdeps/pthread/createthread.c (create_thread): Use CLONE_SYSVSEM
	flag.
This commit is contained in:
Ulrich Drepper 2003-05-01 23:19:51 +00:00
parent cf20f569ae
commit 9a7178d611
17 changed files with 81 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
nptl/ChangeLog
View File

@ -1,3 +1,25 @@
2003-05-01 Ulrich Drepper <drepper@redhat.com>
* sysdeps/i386/tls.h: Define THREAD_ID.
* 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.
* pthread_mutex_lock.c: Use THREAD_ID instead of THREAD_SELF to
record ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pthread_mutex_unlock.c: Likewise.
* pthread_rwlock_trywrlock.c: Likewise.
* sysdeps/pthread/pthread_rwlocklock_rdlock.c: Likewise.
* sysdeps/pthread/pthread_rwlock_timedrdlock.c: Likewise.
* sysdeps/pthread/pthread_rwlock_timedwrlock.c: Likewise.
* sysdeps/pthread/pthread_rwlock_wrlock.c: Likewise.
* sysdeps/pthread/createthread.c (create_thread): Use CLONE_SYSVSEM
flag.
2003-04-29 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h

10
nptl/pthread_mutex_lock.c
View File

@ -26,14 +26,14 @@ int
__pthread_mutex_lock (mutex)
pthread_mutex_t *mutex;
{
struct pthread *pd = THREAD_SELF;
struct pthread *id = THREAD_ID;
switch (__builtin_expect (mutex->__data.__kind, PTHREAD_MUTEX_TIMED_NP))
{
/* Recursive mutex. */
case PTHREAD_MUTEX_RECURSIVE_NP:
/* Check whether we already hold the mutex. */
if (mutex->__data.__owner == pd)
if (mutex->__data.__owner == id)
{
/* Just bump the counter. */
if (__builtin_expect (mutex->__data.__count + 1 == 0, 0))
@ -48,7 +48,7 @@ __pthread_mutex_lock (mutex)
lll_mutex_lock (mutex->__data.__lock);
/* Record the ownership. */
mutex->__data.__owner = pd;
mutex->__data.__owner = id;
mutex->__data.__count = 1;
}
break;
@ -56,7 +56,7 @@ __pthread_mutex_lock (mutex)
/* Error checking mutex. */
case PTHREAD_MUTEX_ERRORCHECK_NP:
/* Check whether we already hold the mutex. */
if (mutex->__data.__owner == pd)
if (mutex->__data.__owner == id)
return EDEADLK;
/* FALLTHROUGH */
@ -68,7 +68,7 @@ __pthread_mutex_lock (mutex)
/* Normal mutex. */
lll_mutex_lock (mutex->__data.__lock);
/* Record the ownership. */
mutex->__data.__owner = pd;
mutex->__data.__owner = id;
break;
}

10
nptl/pthread_mutex_timedlock.c
View File

@ -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.
@ -27,7 +27,7 @@ pthread_mutex_timedlock (mutex, abstime)
pthread_mutex_t *mutex;
const struct timespec *abstime;
{
struct pthread *pd = THREAD_SELF;
struct pthread *id = THREAD_ID;
int result = 0;
/* We must not check ABSTIME here. If the thread does not block
@ -38,7 +38,7 @@ pthread_mutex_timedlock (mutex, abstime)
/* Recursive mutex. */
case PTHREAD_MUTEX_RECURSIVE_NP:
/* Check whether we already hold the mutex. */
if (mutex->__data.__owner == pd)
if (mutex->__data.__owner == id)
{
/* Just bump the counter. */
if (__builtin_expect (mutex->__data.__count + 1 == 0, 0))
@ -65,7 +65,7 @@ pthread_mutex_timedlock (mutex, abstime)
/* Error checking mutex. */
case PTHREAD_MUTEX_ERRORCHECK_NP:
/* Check whether we already hold the mutex. */
if (mutex->__data.__owner == pd)
if (mutex->__data.__owner == id)
return EDEADLK;
/* FALLTHROUGH */
@ -81,7 +81,7 @@ pthread_mutex_timedlock (mutex, abstime)
if (result == 0)
/* Record the ownership. */
mutex->__data.__owner = pd;
mutex->__data.__owner = id;
out:
return result;

8
nptl/pthread_mutex_trylock.c
View File

@ -26,14 +26,14 @@ int
__pthread_mutex_trylock (mutex)
pthread_mutex_t *mutex;
{
struct pthread *pd = THREAD_SELF;
struct pthread *id = THREAD_ID;
switch (__builtin_expect (mutex->__data.__kind, PTHREAD_MUTEX_TIMED_NP))
{
/* Recursive mutex. */
case PTHREAD_MUTEX_RECURSIVE_NP:
/* Check whether we already hold the mutex. */
if (mutex->__data.__owner == pd)
if (mutex->__data.__owner == id)
{
/* Just bump the counter. */
if (__builtin_expect (mutex->__data.__count + 1 == 0, 0))
@ -47,7 +47,7 @@ __pthread_mutex_trylock (mutex)
if (lll_mutex_trylock (mutex->__data.__lock) == 0)
{
/* Record the ownership. */
mutex->__data.__owner = pd;
mutex->__data.__owner = id;
mutex->__data.__count = 1;
return 0;
}
@ -63,7 +63,7 @@ __pthread_mutex_trylock (mutex)
if (lll_mutex_trylock (mutex->__data.__lock) == 0)
{
/* Record the ownership. */
mutex->__data.__owner = pd;
mutex->__data.__owner = id;
return 0;
}

11
nptl/pthread_mutex_unlock.c
View File

@ -30,23 +30,19 @@ __pthread_mutex_unlock (mutex)
{
case PTHREAD_MUTEX_RECURSIVE_NP:
/* Recursive mutex. */
if (mutex->__data.__owner != THREAD_SELF)
if (mutex->__data.__owner != THREAD_ID)
return EPERM;
if (--mutex->__data.__count != 0)
/* We still hold the mutex. */
return 0;
mutex->__data.__owner = NULL;
break;
case PTHREAD_MUTEX_ERRORCHECK_NP:
/* Error checking mutex. */
if (mutex->__data.__owner != THREAD_SELF
if (mutex->__data.__owner != THREAD_ID
|| ! lll_mutex_islocked (mutex->__data.__lock))
return EPERM;
mutex->__data.__owner = NULL;
break;
default:
@ -57,6 +53,9 @@ __pthread_mutex_unlock (mutex)
break;
}
/* Always reset the owner field. */
mutex->__data.__owner = NULL;
/* Unlock. */
lll_mutex_unlock (mutex->__data.__lock);

4
nptl/pthread_rwlock_trywrlock.c
View File

@ -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.
@ -32,7 +32,7 @@ __pthread_rwlock_trywrlock (rwlock)
if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0)
{
rwlock->__data.__writer = (pthread_t) THREAD_SELF;
rwlock->__data.__writer = (pthread_t) THREAD_ID;
result = 0;
}

4
nptl/sysdeps/i386/tls.h
View File

@ -251,6 +251,10 @@ union user_desc_init
: "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) \

4
nptl/sysdeps/ia64/tls.h
View File

@ -113,6 +113,10 @@ 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

4
nptl/sysdeps/powerpc/tls.h
View File

@ -129,6 +129,10 @@ 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)

8
nptl/sysdeps/pthread/createthread.c
View File

@ -78,8 +78,9 @@ create_thread (struct pthread *pd, STACK_VARIABLES_PARMS)
if (ARCH_CLONE (start_thread_debug, STACK_VARIABLES_ARGS,
CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGNAL |
CLONE_SETTLS | CLONE_PARENT_SETTID |
CLONE_CHILD_CLEARTID | CLONE_DETACHED | 0,
pd, &pd->tid, TLS_VALUE, &pd->tid) == -1)
CLONE_CHILD_CLEARTID | CLONE_DETACHED |
CLONE_SYSVSEM | 0, pd, &pd->tid, TLS_VALUE,
&pd->tid) == -1)
/* Failed. */
return errno;
@ -151,7 +152,8 @@ create_thread (struct pthread *pd, STACK_VARIABLES_PARMS)
if (ARCH_CLONE (start_thread, STACK_VARIABLES_ARGS,
CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGNAL |
CLONE_SETTLS | CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID |
CLONE_DETACHED | 0, pd, &pd->tid, TLS_VALUE, &pd->tid) == -1)
CLONE_DETACHED | CLONE_SYSVSEM | 0, pd, &pd->tid, TLS_VALUE,
&pd->tid) == -1)
/* Failed. */
return errno;

2
nptl/sysdeps/pthread/pthread_rwlock_rdlock.c
View File

@ -57,7 +57,7 @@ __pthread_rwlock_rdlock (rwlock)
a deadlock situation we recognize and report. */
if (rwlock->__data.__writer != 0
&& __builtin_expect (rwlock->__data.__writer
== (pthread_t) THREAD_SELF, 0))
== (pthread_t) THREAD_ID, 0))
{
result = EDEADLK;
break;

2
nptl/sysdeps/pthread/pthread_rwlock_timedrdlock.c
View File

@ -60,7 +60,7 @@ pthread_rwlock_timedrdlock (rwlock, abstime)
a deadlock situation we recognize and report. */
if (rwlock->__data.__writer != 0
&& __builtin_expect (rwlock->__data.__writer
== (pthread_t) THREAD_SELF, 0))
== (pthread_t) THREAD_ID, 0))
{
result = EDEADLK;
break;

4
nptl/sysdeps/pthread/pthread_rwlock_timedwrlock.c
View File

@ -43,7 +43,7 @@ pthread_rwlock_timedwrlock (rwlock, abstime)
if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0)
{
/* Mark self as writer. */
rwlock->__data.__writer = (pthread_t) THREAD_SELF;
rwlock->__data.__writer = (pthread_t) THREAD_ID;
break;
}
@ -51,7 +51,7 @@ pthread_rwlock_timedwrlock (rwlock, abstime)
a deadlock situation we recognize and report. */
if (rwlock->__data.__writer != 0
&& __builtin_expect (rwlock->__data.__writer
== (pthread_t) THREAD_SELF, 0))
== (pthread_t) THREAD_ID, 0))
{
result = EDEADLK;
break;

4
nptl/sysdeps/pthread/pthread_rwlock_wrlock.c
View File

@ -40,7 +40,7 @@ __pthread_rwlock_wrlock (rwlock)
if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0)
{
/* Mark self as writer. */
rwlock->__data.__writer = (pthread_t) THREAD_SELF;
rwlock->__data.__writer = (pthread_t) THREAD_ID;
break;
}
@ -48,7 +48,7 @@ __pthread_rwlock_wrlock (rwlock)
a deadlock situation we recognize and report. */
if (rwlock->__data.__writer != 0
&& __builtin_expect (rwlock->__data.__writer
== (pthread_t) THREAD_SELF, 0))
== (pthread_t) THREAD_ID, 0))
{
result = EDEADLK;
break;

4
nptl/sysdeps/s390/tls.h
View File

@ -137,6 +137,10 @@ 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

7
nptl/sysdeps/sh/tls.h
View File

@ -117,6 +117,13 @@ 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)

4
nptl/sysdeps/x86_64/tls.h
View File

@ -159,6 +159,10 @@ 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) \