nptl: Define __PTHREAD_MUTEX_{NUSERS_AFTER_KIND,USE_UNION}

This patch adds two new internal defines to set the internal pthread_mutex_t layout required by the supported ABIS: 1. __PTHREAD_MUTEX_NUSERS_AFTER_KIND which control whether to define __nusers fields before or after __kind. The preferred value for is 0 for new ports and it sets __nusers before __kind. 2. __PTHREAD_MUTEX_USE_UNION which control whether internal __spins and __list members will be place inside an union for linuxthreads compatibility. The preferred value is 0 for ports and it sets to not use an union to define both fields. It fixes the wrong offsets value for __kind value on x86_64-linux-gnu-x32. Checked with a make check run-built-tests=no on all afected ABIs. [BZ #22298] * nptl/allocatestack.c (allocate_stack): Check if __PTHREAD_MUTEX_HAVE_PREV is non-zero, instead if __PTHREAD_MUTEX_HAVE_PREV is defined. * nptl/descr.h (pthread): Likewise. * nptl/nptl-init.c (__pthread_initialize_minimal_internal): Likewise. * nptl/pthread_create.c (START_THREAD_DEFN): Likewise. * sysdeps/nptl/fork.c (__libc_fork): Likewise. * sysdeps/nptl/pthread.h (PTHREAD_MUTEX_INITIALIZER): Likewise. * sysdeps/nptl/bits/thread-shared-types.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): New defines. (__pthread_internal_list): Check __PTHREAD_MUTEX_USE_UNION instead of __WORDSIZE for internal layout. (__pthread_mutex_s): Check __PTHREAD_MUTEX_NUSERS_AFTER_KIND instead of __WORDSIZE for internal __nusers layout and __PTHREAD_MUTEX_USE_UNION instead of __WORDSIZE whether to use an union for __spins and __list fields. (__PTHREAD_MUTEX_HAVE_PREV): Define also for __PTHREAD_MUTEX_USE_UNION case. * sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): New defines. * sysdeps/alpha/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. * sysdeps/arm/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. * sysdeps/hppa/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. * sysdeps/ia64/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. * sysdeps/m68k/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. * sysdeps/microblaze/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. * sysdeps/mips/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. * sysdeps/nios2/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. * sysdeps/powerpc/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. * sysdeps/s390/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. * sysdeps/sh/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. * sysdeps/sparc/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. * sysdeps/tile/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. * sysdeps/x86/nptl/bits/pthreadtypes-arch.h (__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): Likewise. Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2025-01-10 19:30:10 +00:00 · 2017-10-19 10:11:57 -02:00 · 2017-10-19 10:11:57 -02:00 · 06be6368da
commit 06be6368da
parent 72b3c6eecd
23 changed files with 136 additions and 12 deletions
--- a/67
+++ b/67
@ -1,5 +1,72 @@
 2017-11-07  Adhemerval Zanella  <adhemerval.zanella@linaro.org>

+	[BZ #22298]
+	* nptl/allocatestack.c (allocate_stack): Check if
+	__PTHREAD_MUTEX_HAVE_PREV is non-zero, instead if
+	__PTHREAD_MUTEX_HAVE_PREV is defined.
+	* nptl/descr.h (pthread): Likewise.
+	* nptl/nptl-init.c (__pthread_initialize_minimal_internal):
+	Likewise.
+	* nptl/pthread_create.c (START_THREAD_DEFN): Likewise.
+	* sysdeps/nptl/fork.c (__libc_fork): Likewise.
+	* sysdeps/nptl/pthread.h (PTHREAD_MUTEX_INITIALIZER): Likewise.
+	* sysdeps/nptl/bits/thread-shared-types.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): New
+	defines.
+	(__pthread_internal_list): Check __PTHREAD_MUTEX_USE_UNION instead
+	of __WORDSIZE for internal layout.
+	(__pthread_mutex_s): Check __PTHREAD_MUTEX_NUSERS_AFTER_KIND instead
+	of __WORDSIZE for internal __nusers layout and __PTHREAD_MUTEX_USE_UNION
+	instead of __WORDSIZE whether to use an union for __spins and __list
+	fields.
+	(__PTHREAD_MUTEX_HAVE_PREV): Define also for __PTHREAD_MUTEX_USE_UNION
+	case.
+	* sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): New
+	defines.
+	* sysdeps/alpha/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+	* sysdeps/arm/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+	* sysdeps/hppa/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+	* sysdeps/ia64/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+	* sysdeps/m68k/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+	* sysdeps/microblaze/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+	* sysdeps/mips/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+	* sysdeps/nios2/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+	* sysdeps/powerpc/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+	* sysdeps/s390/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+	* sysdeps/sh/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+	* sysdeps/sparc/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+	* sysdeps/tile/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+	* sysdeps/x86/nptl/bits/pthreadtypes-arch.h
+	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
+	Likewise.
+
 	* nptl/pthreadP.h (ASSERT_TYPE_SIZE, ASSERT_PTHREAD_INTERNAL_SIZE):
 	New macros.
 	* nptl/pthread_attr_init.c (__pthread_mutex_init): Add build time
--- a/nptl/allocatestack.c
+++ b/nptl/allocatestack.c
@ -753,7 +753,7 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp,
 				  - offsetof (pthread_mutex_t,
 					      __data.__list.__next));
  pd->robust_head.list_op_pending = NULL;
-#ifdef __PTHREAD_MUTEX_HAVE_PREV
+#if __PTHREAD_MUTEX_HAVE_PREV
  pd->robust_prev = &pd->robust_head;
 #endif
  pd->robust_head.list = &pd->robust_head;
--- a/nptl/descr.h
+++ b/nptl/descr.h
@ -169,7 +169,7 @@ struct pthread
  pid_t pid_ununsed;

  /* List of robust mutexes the thread is holding.  */
-#ifdef __PTHREAD_MUTEX_HAVE_PREV
+#if __PTHREAD_MUTEX_HAVE_PREV
  void *robust_prev;
  struct robust_list_head robust_head;

--- a/nptl/nptl-init.c
+++ b/nptl/nptl-init.c
@ -297,7 +297,7 @@ __pthread_initialize_minimal_internal (void)

  /* Initialize the robust mutex data.  */
  {
-#ifdef __PTHREAD_MUTEX_HAVE_PREV
+#if __PTHREAD_MUTEX_HAVE_PREV
    pd->robust_prev = &pd->robust_head;
 #endif
    pd->robust_head.list = &pd->robust_head;
--- a/nptl/pthread_create.c
+++ b/nptl/pthread_create.c
@ -518,7 +518,7 @@ START_THREAD_DEFN

 #ifndef __ASSUME_SET_ROBUST_LIST
  /* If this thread has any robust mutexes locked, handle them now.  */
-# ifdef __PTHREAD_MUTEX_HAVE_PREV
+# if __PTHREAD_MUTEX_HAVE_PREV
  void *robust = pd->robust_head.list;
 # else
  __pthread_slist_t *robust = pd->robust_list.__next;
@ -536,7 +536,7 @@ START_THREAD_DEFN
 					 __list.__next));
 	  robust = *((void **) robust);

-# ifdef __PTHREAD_MUTEX_HAVE_PREV
+# if __PTHREAD_MUTEX_HAVE_PREV
 	  this->__list.__prev = NULL;
 # endif
 	  this->__list.__next = NULL;
--- a/sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h
@ -45,6 +45,8 @@
 #define __PTHREAD_COMPAT_PADDING_MID
 #define __PTHREAD_COMPAT_PADDING_END
 #define __PTHREAD_MUTEX_LOCK_ELISION	0
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  0
+#define __PTHREAD_MUTEX_USE_UNION          0

 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT
--- a/sysdeps/alpha/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/alpha/nptl/bits/pthreadtypes-arch.h
@ -33,6 +33,8 @@
 #define __PTHREAD_COMPAT_PADDING_MID
 #define __PTHREAD_COMPAT_PADDING_END
 #define __PTHREAD_MUTEX_LOCK_ELISION    0
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  0
+#define __PTHREAD_MUTEX_USE_UNION          0

 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT
--- a/sysdeps/arm/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/arm/nptl/bits/pthreadtypes-arch.h
@ -34,6 +34,8 @@
 #define __PTHREAD_COMPAT_PADDING_MID
 #define __PTHREAD_COMPAT_PADDING_END
 #define __PTHREAD_MUTEX_LOCK_ELISION    0
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  1
+#define __PTHREAD_MUTEX_USE_UNION          1

 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT
--- a/sysdeps/hppa/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/hppa/nptl/bits/pthreadtypes-arch.h
@ -48,6 +48,8 @@
   pthread_mutex_t is larger than Linuxthreads.  */
 #define __PTHREAD_COMPAT_PADDING_END  int __reserved[2];
 #define __PTHREAD_MUTEX_LOCK_ELISION    0
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  1
+#define __PTHREAD_MUTEX_USE_UNION          1

 #define __LOCK_ALIGNMENT __attribute__ ((__aligned__(16)))
 #define __ONCE_ALIGNMENT
--- a/sysdeps/ia64/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/ia64/nptl/bits/pthreadtypes-arch.h
@ -33,6 +33,8 @@
 #define __PTHREAD_COMPAT_PADDING_MID
 #define __PTHREAD_COMPAT_PADDING_END
 #define __PTHREAD_MUTEX_LOCK_ELISION    0
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  0
+#define __PTHREAD_MUTEX_USE_UNION          0

 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT
--- a/sysdeps/m68k/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/m68k/nptl/bits/pthreadtypes-arch.h
@ -35,6 +35,8 @@
 #define __PTHREAD_COMPAT_PADDING_MID
 #define __PTHREAD_COMPAT_PADDING_END
 #define __PTHREAD_MUTEX_LOCK_ELISION    0
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  1
+#define __PTHREAD_MUTEX_USE_UNION          1

 #define __LOCK_ALIGNMENT __attribute__ ((__aligned__ (4)))
 #define __ONCE_ALIGNMENT __attribute__ ((__aligned__ (4)))
--- a/sysdeps/microblaze/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/microblaze/nptl/bits/pthreadtypes-arch.h
@ -35,6 +35,8 @@
 #define __PTHREAD_COMPAT_PADDING_MID
 #define __PTHREAD_COMPAT_PADDING_END
 #define __PTHREAD_MUTEX_LOCK_ELISION    0
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  1
+#define __PTHREAD_MUTEX_USE_UNION          1

 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT
--- a/sysdeps/mips/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/mips/nptl/bits/pthreadtypes-arch.h
@ -42,6 +42,8 @@
 #define __PTHREAD_COMPAT_PADDING_MID
 #define __PTHREAD_COMPAT_PADDING_END
 #define __PTHREAD_MUTEX_LOCK_ELISION    0
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  (_MIPS_SIM != _ABI64)
+#define __PTHREAD_MUTEX_USE_UNION          (_MIPS_SIM != _ABI64)

 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT
--- a/sysdeps/nios2/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/nios2/nptl/bits/pthreadtypes-arch.h
@ -35,6 +35,8 @@
 #define __PTHREAD_COMPAT_PADDING_MID
 #define __PTHREAD_COMPAT_PADDING_END
 #define __PTHREAD_MUTEX_LOCK_ELISION    0
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  1
+#define __PTHREAD_MUTEX_USE_UNION          1

 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT
--- a/sysdeps/nptl/bits/thread-shared-types.h
+++ b/sysdeps/nptl/bits/thread-shared-types.h
@ -42,6 +42,25 @@
 				    the internal structure.
   __PTHREAD_MUTEX_LOCK_ELISION   - 1 if the architecture supports lock
 				    elision or 0 otherwise.
+   __PTHREAD_MUTEX_NUSERS_AFTER_KIND - control where to put __nusers.  The
+				       preferred value for new architectures
+				       is 0.
+   __PTHREAD_MUTEX_USE_UNION      - control whether internal __spins and
+				    __list will be place inside a union for
+				    linuxthreads compatibility.
+				    The preferred value for new architectures
+				    is 0.
+
+   For a new port the preferred values for the required defines are:
+
+   #define __PTHREAD_COMPAT_PADDING_MID
+   #define __PTHREAD_COMPAT_PADDING_END
+   #define __PTHREAD_MUTEX_LOCK_ELISION         0
+   #define __PTHREAD_MUTEX_NUSERS_AFTER_KIND    0
+   #define __PTHREAD_MUTEX_USE_UNION            0
+
+   __PTHREAD_MUTEX_LOCK_ELISION can be set to 1 if the hardware plans to
+   eventually support lock elision using transactional memory.

   The additional macro defines any constraint for the lock alignment
   inside the thread structures:
@ -59,7 +78,7 @@

 /* Common definition of pthread_mutex_t. */

-#if __WORDSIZE == 64
+#if !__PTHREAD_MUTEX_USE_UNION
 typedef struct __pthread_internal_list
 {
  struct __pthread_internal_list *__prev;
@ -74,7 +93,7 @@ typedef struct __pthread_internal_slist

 /* Lock elision support.  */
 #if __PTHREAD_MUTEX_LOCK_ELISION
-# if __WORDSIZE == 64
+# if !__PTHREAD_MUTEX_USE_UNION
 #  define __PTHREAD_SPINS_DATA	\
  short __spins;		\
  short __elision
@ -101,24 +120,27 @@ struct __pthread_mutex_s
  int __lock __LOCK_ALIGNMENT;
  unsigned int __count;
  int __owner;
-#if __WORDSIZE == 64
+#if !__PTHREAD_MUTEX_NUSERS_AFTER_KIND
  unsigned int __nusers;
 #endif
  /* KIND must stay at this position in the structure to maintain
     binary compatibility with static initializers.  */
  int __kind;
  __PTHREAD_COMPAT_PADDING_MID
-#if __WORDSIZE == 64
+#if __PTHREAD_MUTEX_NUSERS_AFTER_KIND
+  unsigned int __nusers;
+#endif
+#if !__PTHREAD_MUTEX_USE_UNION
  __PTHREAD_SPINS_DATA;
  __pthread_list_t __list;
 # define __PTHREAD_MUTEX_HAVE_PREV      1
 #else
-  unsigned int __nusers;
  __extension__ union
  {
    __PTHREAD_SPINS_DATA;
    __pthread_slist_t __list;
  };
+# define __PTHREAD_MUTEX_HAVE_PREV      0
 #endif
  __PTHREAD_COMPAT_PADDING_END
 };
--- a/sysdeps/nptl/fork.c
+++ b/sysdeps/nptl/fork.c
@ -166,7 +166,7 @@ __libc_fork (void)
 	 inherit the correct value from the parent.  We do not need to clear
 	 the pending operation because it must have been zero when fork was
 	 called.  */
-# ifdef __PTHREAD_MUTEX_HAVE_PREV
+# if __PTHREAD_MUTEX_HAVE_PREV
      self->robust_prev = &self->robust_head;
 # endif
      self->robust_head.list = &self->robust_head;
--- a/sysdeps/nptl/pthread.h
+++ b/sysdeps/nptl/pthread.h
@ -83,7 +83,7 @@ enum
 #endif


-#ifdef __PTHREAD_MUTEX_HAVE_PREV
+#if __PTHREAD_MUTEX_HAVE_PREV
 # define PTHREAD_MUTEX_INITIALIZER \
  { { 0, 0, 0, 0, 0, __PTHREAD_SPINS, { 0, 0 } } }
 # ifdef __USE_GNU
--- a/sysdeps/powerpc/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/powerpc/nptl/bits/pthreadtypes-arch.h
@ -42,6 +42,8 @@
 #define __PTHREAD_COMPAT_PADDING_MID
 #define __PTHREAD_COMPAT_PADDING_END
 #define __PTHREAD_MUTEX_LOCK_ELISION    1
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  (__WORDSIZE != 64)
+#define __PTHREAD_MUTEX_USE_UNION          (__WORDSIZE != 64)

 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT
--- a/sysdeps/s390/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/s390/nptl/bits/pthreadtypes-arch.h
@ -45,6 +45,8 @@
 #else
 #define __PTHREAD_MUTEX_LOCK_ELISION	0
 #endif
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  (__WORDSIZE != 64)
+#define __PTHREAD_MUTEX_USE_UNION          (__WORDSIZE != 64)

 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT
--- a/sysdeps/sh/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/sh/nptl/bits/pthreadtypes-arch.h
@ -34,6 +34,8 @@
 #define __PTHREAD_COMPAT_PADDING_MID
 #define __PTHREAD_COMPAT_PADDING_END
 #define __PTHREAD_MUTEX_LOCK_ELISION    0
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  1
+#define __PTHREAD_MUTEX_USE_UNION          1

 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT
--- a/sysdeps/sparc/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/sparc/nptl/bits/pthreadtypes-arch.h
@ -43,6 +43,8 @@
 #define __PTHREAD_COMPAT_PADDING_MID
 #define __PTHREAD_COMPAT_PADDING_END
 #define __PTHREAD_MUTEX_LOCK_ELISION    0
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  (__WORDSIZE != 64)
+#define __PTHREAD_MUTEX_USE_UNION          (__WORDSIZE != 64)

 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT
--- a/sysdeps/tile/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/tile/nptl/bits/pthreadtypes-arch.h
@ -43,6 +43,8 @@
 #define __PTHREAD_COMPAT_PADDING_MID
 #define __PTHREAD_COMPAT_PADDING_END
 #define __PTHREAD_MUTEX_LOCK_ELISION    0
+#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  (__WORDSIZE != 64)
+#define __PTHREAD_MUTEX_USE_UNION          (__WORDSIZE != 64)

 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT
--- a/sysdeps/x86/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/x86/nptl/bits/pthreadtypes-arch.h
@ -51,6 +51,13 @@
 #define __PTHREAD_COMPAT_PADDING_MID
 #define __PTHREAD_COMPAT_PADDING_END
 #define __PTHREAD_MUTEX_LOCK_ELISION    1
+#ifdef __x86_64__
+# define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  0
+# define __PTHREAD_MUTEX_USE_UNION          0
+#else
+# define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  1
+# define __PTHREAD_MUTEX_USE_UNION          1
+#endif

 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT