This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
[ping3][PATCH v2] New functions pthread_attr_[sg]et_default_np for default thread attributes
- From: Siddhesh Poyarekar <siddhesh at redhat dot com>
- To: libc-alpha at sourceware dot org
- Date: Mon, 13 May 2013 13:14:05 +0530
- Subject: [ping3][PATCH v2] New functions pthread_attr_[sg]et_default_np for default thread attributes
- References: <20130314122003 dot GY22471 at spoyarek dot pnq dot redhat dot com> <20130422065847 dot GG1412 at spoyarek dot pnq dot redhat dot com> <20130430054816 dot GO1330 at spoyarek dot pnq dot redhat dot com> <20130507102648 dot GF5741 at spoyarek dot pnq dot redhat dot com>
Ping!
On Tue, May 07, 2013 at 03:56:48PM +0530, Siddhesh Poyarekar wrote:
> Ping!
>
> On Tue, Apr 30, 2013 at 11:18:16AM +0530, Siddhesh Poyarekar wrote:
> > Ping!
> >
> > On Mon, Apr 22, 2013 at 12:28:48PM +0530, Siddhesh Poyarekar wrote:
> > > Hi,
> > >
> > > Here's an updated patch to add convenience functions to get and set
> > > default attributes for a thread. This allows programmers to set
> > > thread attributes just once for all threads it creates in future using
> > > a new function pthread_attr_set_default_np. Similarly, one could also
> > > query the default attributes using another new function
> > > pthread_attr_get_default_np.
> > >
> > > The attributes set using pthread_attr_set_default_np may either be
> > > queried using pthread_attr_get_default_np or newly initialized using
> > > pthread_attr_init.
> > >
> > > Notes on Forking:
> > >
> > > - A forked child process inherits the default pthread attributes
> > > - fork() should not be called simultaneously with
> > > pthread_attr_set_default_np because it could result in the
> > > __default_pthread_attr in the child process being in an inconsistent
> > > state.
> > >
> > > I will also add a manual node describing these functions once they
> > > actually make it in.
> > >
> > > Siddhesh
> > >
> > > * Versions.def (libpthread): Add GLIBC_2.18.
> > > * sysdeps/unix/sysv/linux/i386/nptl/libpthread.abilist: Add
> > > GLIBC_2.18
> > > (GLIBC_2.18): Add pthread_attr_get_default_np and
> > > pthread_attr_set_default_np.
> > > * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libpthread.abilist:
> > > Likewise.
> > > * sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libpthread.abilist:
> > > Likewise.
> > > * sysdeps/unix/sysv/linux/s390/s390-32/nptl/libpthread.abilist:
> > > Likewise.
> > > * sysdeps/unix/sysv/linux/s390/s390-64/nptl/libpthread.abilist:
> > > Likewise.
> > > * sysdeps/unix/sysv/linux/sh/nptl/libpthread.abilist:
> > > Likewise.
> > > * sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libpthread.abilist:
> > > Likewise.
> > > * sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libpthread.abilist:
> > > Likewise.
> > > * sysdeps/unix/sysv/linux/x86_64/64/nptl/libpthread.abilist:
> > > Likewise.
> > > * sysdeps/unix/sysv/linux/x86_64/x32/nptl/libpthread.abilist:
> > > Likewise.
> > >
> > > nptl/ChangeLog:
> > >
> > > * Makefile (libpthread-routines): Add
> > > pthread_attr_set_default_np and pthread_attr_get_default_np.
> > > (tests): Add tst-default-attr.
> > > * Versions (libpthread): Add GLIBC_2.18.
> > > (GLIBC_2.18): Add pthread_attr_set_default_np and
> > > pthread_attr_get_default_np.
> > > * allocatestack.c (allocate_stack): Synchronize access to
> > > __default_stack_attr.
> > > (__reclaim_stacks): Reinitialize __default_pthread_attr_lock.
> > > * nptl-init.c (__pthread_initialize_minimal_internal):
> > > Synchronize access to __default_stack_attr.
> > > * pthreadP.h (__default_pthread_attr_lock): New lock variable.
> > > * pthread_attr_get_default_np.c: New file.
> > > * pthread_attr_getstacksize.c (__pthread_attr_getstacksize):
> > > Synchronize access to __default_stack_addr.
> > > * pthread_attr_set_default_np.c: New file.
> > > * pthread_create.c (__pthread_create_2_1): Allow default flags
> > > to be used. Synchronize access to __default_stack_addr.
> > > * sysdeps/pthread/pthread.h (pthread_attr_get_default_np,
> > > pthread_attr_set_default_np): Declare.
> > > * tst-default-attr.c: New test case.
> > >
> > > ChangeLog.tile
> > >
> > > * ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/nptl/libpthread.abilist:
> > > Add GLIBC_2.18.
> > > (GLIBC_2.18): Add pthread_attr_get_default_np and
> > > pthread_attr_set_default_np.
> > > * ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/nptl/libpthread.abilist:
> > > Likewise.
> > > * ports/sysdeps/unix/sysv/linux/tile/tilepro/nptl/libpthread.abilist:
> > > Likewise.
> > >
> > > ChangeLog.m68k
> > > * ports/sysdeps/unix/sysv/linux/m68k/coldfire/nptl/libpthread.abilist:
> > > Add GLIBC_2.18.
> > > (GLIBC_2.18): Add pthread_attr_get_default_np and
> > > pthread_attr_set_default_np.
> > > * ports/sysdeps/unix/sysv/linux/m68k/m680x0/nptl/libpthread.abilist:
> > > Likewise.
> > >
> > > ChangeLog.ia64
> > >
> > > * ports/sysdeps/unix/sysv/linux/ia64/nptl/libpthread.abilist:
> > > Add GLIBC_2.18.
> > > (GLIBC_2.18): Add pthread_attr_get_default_np and
> > > pthread_attr_set_default_np.
> > >
> > > ChangeLog.aarch64
> > >
> > > * ports/sysdeps/unix/sysv/linux/aarch64/nptl/libpthread.abilist:
> > > Add GLIBC_2.18.
> > > (GLIBC_2.18): Add pthread_attr_get_default_np and
> > > pthread_attr_set_default_np.
> > >
> > > ChangeLog.alpha
> > >
> > > * ports/sysdeps/unix/sysv/linux/alpha/nptl/libpthread.abilist:
> > > Add GLIBC_2.18.
> > > (GLIBC_2.18): Add pthread_attr_get_default_np and
> > > pthread_attr_set_default_np.
> > >
> > > ChangeLog.powerpc
> > >
> > > * ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/libpthread.abilist:
> > > Add GLIBC_2.18.
> > > (GLIBC_2.18): Add pthread_attr_get_default_np and
> > > pthread_attr_set_default_np.
> > >
> > > ChangeLog.arm
> > >
> > > * ports/sysdeps/unix/sysv/linux/arm/nptl/libpthread.abilist:
> > > Add GLIBC_2.18.
> > > (GLIBC_2.18): Add pthread_attr_get_default_np and
> > > pthread_attr_set_default_np.
> > >
> > > ChangeLog.mips
> > >
> > > * ports/sysdeps/unix/sysv/linux/mips/mips32/nptl/libpthread.abilist:
> > > Add GLIBC_2.18.
> > > (GLIBC_2.18): Add pthread_attr_get_default_np and
> > > pthread_attr_set_default_np.
> > > * ports/sysdeps/unix/sysv/linux/mips/mips64/n32/nptl/libpthread.abilist:
> > > Likewise.
> > > * ports/sysdeps/unix/sysv/linux/mips/mips64/n64/nptl/libpthread.abilist:
> > > Likewise.
> > >
> > > diff --git a/Versions.def b/Versions.def
> > > index 0462239..0854e6e 100644
> > > --- a/Versions.def
> > > +++ b/Versions.def
> > > @@ -102,6 +102,7 @@ libpthread {
> > > GLIBC_2.6
> > > GLIBC_2.11
> > > GLIBC_2.12
> > > + GLIBC_2.18
> > > GLIBC_PRIVATE
> > > }
> > > libresolv {
> > > diff --git a/nptl/Makefile b/nptl/Makefile
> > > index 6af4b37..e7e226a 100644
> > > --- a/nptl/Makefile
> > > +++ b/nptl/Makefile
> > > @@ -125,7 +125,8 @@ libpthread-routines = nptl-init vars events version \
> > > pthread_mutexattr_setprioceiling tpp \
> > > pthread_mutex_getprioceiling \
> > > pthread_mutex_setprioceiling \
> > > - pthread_setname pthread_getname
> > > + pthread_setname pthread_getname \
> > > + pthread_attr_set_default_np pthread_attr_get_default_np
> > > # pthread_setuid pthread_seteuid pthread_setreuid \
> > > # pthread_setresuid \
> > > # pthread_setgid pthread_setegid pthread_setregid \
> > > @@ -201,7 +202,7 @@ CFLAGS-pt-system.c = -fexceptions
> > >
> > >
> > > tests = tst-typesizes \
> > > - tst-attr1 tst-attr2 tst-attr3 \
> > > + tst-attr1 tst-attr2 tst-attr3 tst-default-attr \
> > > tst-mutex1 tst-mutex2 tst-mutex3 tst-mutex4 tst-mutex5 tst-mutex6 \
> > > tst-mutex7 tst-mutex8 tst-mutex9 tst-mutex5a tst-mutex7a \
> > > tst-mutexpi1 tst-mutexpi2 tst-mutexpi3 tst-mutexpi4 tst-mutexpi5 \
> > > diff --git a/nptl/Versions b/nptl/Versions
> > > index 6a10375..69092e4 100644
> > > --- a/nptl/Versions
> > > +++ b/nptl/Versions
> > > @@ -252,6 +252,11 @@ libpthread {
> > > pthread_setname_np; pthread_getname_np;
> > > };
> > >
> > > + GLIBC_2.18 {
> > > + pthread_attr_get_default_np;
> > > + pthread_attr_set_default_np;
> > > + }
> > > +
> > > GLIBC_PRIVATE {
> > > __pthread_initialize_minimal;
> > > __pthread_clock_gettime; __pthread_clock_settime;
> > > diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c
> > > index 56bf257..08e2fa1 100644
> > > --- a/nptl/allocatestack.c
> > > +++ b/nptl/allocatestack.c
> > > @@ -357,8 +357,19 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp,
> > > assert (TCB_ALIGNMENT >= STACK_ALIGN);
> > >
> > > /* Get the stack size from the attribute if it is set. Otherwise we
> > > - use the default we determined at start time. */
> > > - size = attr->stacksize ?: __default_pthread_attr.stacksize;
> > > + use the default we determined at start time. Our lock attempt here will
> > > + never trip with the lock in pthread_create because the stacksize in
> > > + __default_pthread_attr_lock will never be zero. So if we deadlock on
> > > + ourselves here, it is because a bug led to
> > > + __default_pthread_attr.stacksize being zero. */
> > > + if (attr->stacksize)
> > > + size = attr->stacksize;
> > > + else
> > > + {
> > > + lll_lock (__default_pthread_attr_lock, LLL_PRIVATE);
> > > + size = __default_pthread_attr.stacksize;
> > > + lll_unlock (__default_pthread_attr_lock, LLL_PRIVATE);
> > > + }
> > >
> > > /* Get memory for the stack. */
> > > if (__builtin_expect (attr->flags & ATTR_FLAG_STACKADDR, 0))
> > > @@ -919,8 +930,9 @@ __reclaim_stacks (void)
> > >
> > > in_flight_stack = 0;
> > >
> > > - /* Initialize the lock. */
> > > + /* Initialize locks. */
> > > stack_cache_lock = LLL_LOCK_INITIALIZER;
> > > + __default_pthread_attr_lock = LLL_LOCK_INITIALIZER;
> > > }
> > >
> > >
> > > diff --git a/nptl/nptl-init.c b/nptl/nptl-init.c
> > > index 63fb729..4e99a38 100644
> > > --- a/nptl/nptl-init.c
> > > +++ b/nptl/nptl-init.c
> > > @@ -423,8 +423,10 @@ __pthread_initialize_minimal_internal (void)
> > >
> > > /* Round the resource limit up to page size. */
> > > limit.rlim_cur = (limit.rlim_cur + pagesz - 1) & -pagesz;
> > > + lll_lock (__default_pthread_attr_lock, LLL_PRIVATE);
> > > __default_pthread_attr.stacksize = limit.rlim_cur;
> > > __default_pthread_attr.guardsize = GLRO (dl_pagesize);
> > > + lll_unlock (__default_pthread_attr_lock, LLL_PRIVATE);
> > >
> > > #ifdef SHARED
> > > /* Transfer the old value from the dynamic linker's internal location. */
> > > diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h
> > > index fd52b07..7883fdf 100644
> > > --- a/nptl/pthreadP.h
> > > +++ b/nptl/pthreadP.h
> > > @@ -149,6 +149,7 @@ enum
> > >
> > > /* Default pthread attributes. */
> > > extern struct pthread_attr __default_pthread_attr attribute_hidden;
> > > +extern int __default_pthread_attr_lock attribute_hidden;
> > >
> > > /* Size and alignment of static TLS block. */
> > > extern size_t __static_tls_size attribute_hidden;
> > > diff --git a/nptl/pthread_attr_get_default_np.c b/nptl/pthread_attr_get_default_np.c
> > > new file mode 100644
> > > index 0000000..ef52df7
> > > --- /dev/null
> > > +++ b/nptl/pthread_attr_get_default_np.c
> > > @@ -0,0 +1,37 @@
> > > +/* Get the default attributes used by pthread_create in the process.
> > > + Copyright (C) 2013 Free Software Foundation, Inc.
> > > + This file is part of the GNU C Library.
> > > +
> > > + 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, see
> > > + <http://www.gnu.org/licenses/>. */
> > > +
> > > +#include <errno.h>
> > > +#include <stdlib.h>
> > > +#include <pthreadP.h>
> > > +#include <assert.h>
> > > +
> > > +int
> > > +pthread_attr_get_default_np (pthread_attr_t *out)
> > > +{
> > > + struct pthread_attr *real_out;
> > > +
> > > + assert (sizeof (*out) >= sizeof (struct pthread_attr));
> > > + real_out = (struct pthread_attr *) out;
> > > +
> > > + lll_lock (__default_pthread_attr_lock, LLL_PRIVATE);
> > > + *real_out = __default_pthread_attr;
> > > + lll_unlock (__default_pthread_attr_lock, LLL_PRIVATE);
> > > +
> > > + return 0;
> > > +}
> > > diff --git a/nptl/pthread_attr_getstacksize.c b/nptl/pthread_attr_getstacksize.c
> > > index 42d3f8f..bf0070d 100644
> > > --- a/nptl/pthread_attr_getstacksize.c
> > > +++ b/nptl/pthread_attr_getstacksize.c
> > > @@ -32,7 +32,14 @@ __pthread_attr_getstacksize (attr, stacksize)
> > >
> > > /* If the user has not set a stack size we return what the system
> > > will use as the default. */
> > > - *stacksize = iattr->stacksize ?: __default_pthread_attr.stacksize;
> > > + if (iattr->stacksize)
> > > + *stacksize = iattr->stacksize;
> > > + else
> > > + {
> > > + lll_lock (__default_pthread_attr_lock, LLL_PRIVATE);
> > > + *stacksize = __default_pthread_attr.stacksize;
> > > + lll_unlock (__default_pthread_attr_lock, LLL_PRIVATE);
> > > + }
> > >
> > > return 0;
> > > }
> > > diff --git a/nptl/pthread_attr_set_default_np.c b/nptl/pthread_attr_set_default_np.c
> > > new file mode 100644
> > > index 0000000..29f84d2
> > > --- /dev/null
> > > +++ b/nptl/pthread_attr_set_default_np.c
> > > @@ -0,0 +1,108 @@
> > > +/* Set the default attributes to be used by pthread_create in the process.
> > > + Copyright (C) 2013 Free Software Foundation, Inc.
> > > + This file is part of the GNU C Library.
> > > +
> > > + 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, see
> > > + <http://www.gnu.org/licenses/>. */
> > > +
> > > +#include <errno.h>
> > > +#include <stdlib.h>
> > > +#include <pthreadP.h>
> > > +#include <assert.h>
> > > +
> > > +int
> > > +pthread_attr_set_default_np (const pthread_attr_t *in)
> > > +{
> > > + struct pthread_attr *real_in, attrs;
> > > + int ret;
> > > +
> > > + assert (sizeof (*in) >= sizeof (struct pthread_attr));
> > > + real_in = (struct pthread_attr *) in;
> > > +
> > > + /* Catch invalid values. */
> > > + int policy = real_in->schedpolicy;
> > > +
> > > + ret = check_sched_policy_attr (policy);
> > > + if (ret)
> > > + return ret;
> > > +
> > > + struct sched_param *param = &real_in->schedparam;
> > > +
> > > + if (param->sched_priority > 0)
> > > + {
> > > + ret = check_sched_priority_attr (param->sched_priority, policy);
> > > +
> > > + if (ret)
> > > + return ret;
> > > + }
> > > +
> > > + ret = check_cpuset_attr (real_in->cpuset, real_in->cpusetsize);
> > > + if (ret)
> > > + return ret;
> > > +
> > > + /* stacksize == 0 is fine. It means that we don't change the current
> > > + value. */
> > > + if (real_in->stacksize != 0)
> > > + {
> > > + ret = check_stacksize_attr (real_in->stacksize);
> > > + if (ret)
> > > + return ret;
> > > + }
> > > +
> > > + /* Having a default stack address is wrong. */
> > > + if (real_in->flags & ATTR_FLAG_STACKADDR)
> > > + return EINVAL;
> > > +
> > > + attrs = *real_in;
> > > +
> > > + /* Mantain stacksize as a non-zero value. This is a computed fallback that
> > > + we get on library initialization, so we don't want to overwrite it unless
> > > + there is a valid value to replace it. */
> > > + if (real_in->stacksize > 0)
> > > + attrs.stacksize = real_in->stacksize;
> > > +
> > > + /* Now take the lock because we start writing into
> > > + __default_pthread_attr. */
> > > + lll_lock (__default_pthread_attr_lock, LLL_PRIVATE);
> > > +
> > > + /* Free the cpuset if the input is 0. Otherwise copy in the cpuset
> > > + contents. */
> > > + if (attrs.cpuset == NULL || attrs.cpusetsize == 0)
> > > + free (__default_pthread_attr.cpuset);
> > > + else if (attrs.cpusetsize != __default_pthread_attr.cpusetsize)
> > > + {
> > > + /* This may look wrong at first sight, but it isn't. We're freeing
> > > + __default_pthread_attr.cpuset and allocating to attrs.cpuset because
> > > + we'll copy over all of attr to __default_pthread_attr later. */
> > > + void *newp = (cpu_set_t *) realloc (__default_pthread_attr.cpuset,
> > > + attrs.cpusetsize);
> > > +
> > > + if (newp == NULL)
> > > + {
> > > + ret = ENOMEM;
> > > + goto out;
> > > + }
> > > +
> > > + attrs.cpuset = newp;
> > > + }
> > > + else
> > > + attrs.cpuset = __default_pthread_attr.cpuset;
> > > +
> > > + memcpy (attrs.cpuset, real_in->cpuset, real_in->cpusetsize);
> > > + __default_pthread_attr = attrs;
> > > +
> > > + out:
> > > + lll_unlock (__default_pthread_attr_lock, LLL_PRIVATE);
> > > + return ret;
> > > +}
> > > diff --git a/nptl/pthread_create.c b/nptl/pthread_create.c
> > > index c43077f..634b56d 100644
> > > --- a/nptl/pthread_create.c
> > > +++ b/nptl/pthread_create.c
> > > @@ -449,17 +449,25 @@ __pthread_create_2_1 (newthread, attr, start_routine, arg)
> > >
> > > const struct pthread_attr *iattr = (struct pthread_attr *) attr;
> > > if (iattr == NULL)
> > > - /* Is this the best idea? On NUMA machines this could mean
> > > - accessing far-away memory. */
> > > - iattr = &__default_pthread_attr;
> > > + {
> > > + /* Is this the best idea? On NUMA machines this could mean
> > > + accessing far-away memory. */
> > > + iattr = &__default_pthread_attr;
> > > + lll_lock (__default_pthread_attr_lock, LLL_PRIVATE);
> > > + }
> > >
> > > struct pthread *pd = NULL;
> > > int err = ALLOCATE_STACK (iattr, &pd);
> > > + int retval = 0;
> > > +
> > > if (__builtin_expect (err != 0, 0))
> > > /* Something went wrong. Maybe a parameter of the attributes is
> > > invalid or we could not allocate memory. Note we have to
> > > translate error codes. */
> > > - return err == ENOMEM ? EAGAIN : err;
> > > + {
> > > + retval = err == ENOMEM ? EAGAIN : err;
> > > + goto out;
> > > + }
> > >
> > >
> > > /* Initialize the TCB. All initializations with zero should be
> > > @@ -510,8 +518,7 @@ __pthread_create_2_1 (newthread, attr, start_routine, arg)
> > > #endif
> > >
> > > /* Determine scheduling parameters for the thread. */
> > > - if (attr != NULL
> > > - && __builtin_expect ((iattr->flags & ATTR_FLAG_NOTINHERITSCHED) != 0, 0)
> > > + if (__builtin_expect ((iattr->flags & ATTR_FLAG_NOTINHERITSCHED) != 0, 0)
> > > && (iattr->flags & (ATTR_FLAG_SCHED_SET | ATTR_FLAG_POLICY_SET)) != 0)
> > > {
> > > INTERNAL_SYSCALL_DECL (scerr);
> > > @@ -550,7 +557,8 @@ __pthread_create_2_1 (newthread, attr, start_routine, arg)
> > >
> > > __deallocate_stack (pd);
> > >
> > > - return EINVAL;
> > > + retval = EINVAL;
> > > + goto out;
> > > }
> > > }
> > >
> > > @@ -560,7 +568,13 @@ __pthread_create_2_1 (newthread, attr, start_routine, arg)
> > > LIBC_PROBE (pthread_create, 4, newthread, attr, start_routine, arg);
> > >
> > > /* Start the thread. */
> > > - return create_thread (pd, iattr, STACK_VARIABLES_ARGS);
> > > + retval = create_thread (pd, iattr, STACK_VARIABLES_ARGS);
> > > +
> > > + out:
> > > + if (attr == NULL)
> > > + lll_unlock (__default_pthread_attr_lock, LLL_PRIVATE);
> > > +
> > > + return retval;
> > > }
> > > versioned_symbol (libpthread, __pthread_create_2_1, pthread_create, GLIBC_2_1);
> > >
> > > diff --git a/nptl/sysdeps/pthread/pthread.h b/nptl/sysdeps/pthread/pthread.h
> > > index 10bcb80..93a8b11 100644
> > > --- a/nptl/sysdeps/pthread/pthread.h
> > > +++ b/nptl/sysdeps/pthread/pthread.h
> > > @@ -404,6 +404,14 @@ extern int pthread_attr_getaffinity_np (const pthread_attr_t *__attr,
> > > cpu_set_t *__cpuset)
> > > __THROW __nonnull ((1, 3));
> > >
> > > +/* Get the default attributes used by pthread_create in this process. */
> > > +extern int pthread_attr_get_default_np (pthread_attr_t *__attr)
> > > + __THROW __nonnull ((1));
> > > +
> > > +/* Set the default attributes to be used by pthread_create in this
> > > + process. */
> > > +extern int pthread_attr_set_default_np (const pthread_attr_t *__attr)
> > > + __THROW __nonnull ((1));
> > >
> > > /* Initialize thread attribute *ATTR with attributes corresponding to the
> > > already running thread TH. It shall be called on uninitialized ATTR
> > > diff --git a/nptl/tst-default-attr.c b/nptl/tst-default-attr.c
> > > new file mode 100644
> > > index 0000000..867e91e
> > > --- /dev/null
> > > +++ b/nptl/tst-default-attr.c
> > > @@ -0,0 +1,161 @@
> > > +/* Verify that pthread_attr_[gs]et_default work correctly.
> > > +
> > > + Copyright (C) 2013 Free Software Foundation, Inc.
> > > + This file is part of the GNU C Library.
> > > +
> > > + 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, see
> > > + <http://www.gnu.org/licenses/>. */
> > > +
> > > +#include <pthread.h>
> > > +#include <stdio.h>
> > > +#include <stdint.h>
> > > +#include <string.h>
> > > +#include <unistd.h>
> > > +#include <errno.h>
> > > +
> > > +static size_t stacksize = 1024 * 1024;
> > > +
> > > +void *
> > > +verify_result (pthread_attr_t *attr)
> > > +{
> > > + int ret;
> > > + size_t stack;
> > > +
> > > + if ((ret = pthread_attr_getstacksize (attr, &stack)) != 0)
> > > + {
> > > + printf ("pthread_attr_getstacksize failed: %s\n", strerror (ret));
> > > + return (void *) (uintptr_t) 1;
> > > + }
> > > +
> > > + if (stacksize != stack)
> > > + {
> > > + printf ("pthread_attr_set_default failed for stacksize (%zu, %zu)\n",
> > > + stacksize, stack);
> > > + return (void *) (uintptr_t) 1;
> > > + }
> > > +
> > > + return NULL;
> > > +}
> > > +
> > > +void *
> > > +thr (void *unused)
> > > +{
> > > + pthread_attr_t attr;
> > > + int ret;
> > > +
> > > + /* To verify that the set_default_np worked. */
> > > + puts ("verifying pthread_attr_get_default_np");
> > > + if ((ret = pthread_attr_get_default_np (&attr)) != 0)
> > > + {
> > > + printf ("pthread_attr_get_default_np failed: %s\n", strerror (ret));
> > > + return (void *) (uintptr_t) 1;
> > > + }
> > > +
> > > + if (verify_result (&attr))
> > > + return (void *) (uintptr_t) 1;
> > > +
> > > + /* To verify that the attributes actually got applied. */
> > > + puts ("verifying pthread_getattr_np");
> > > + if ((ret = pthread_getattr_np (pthread_self (), &attr)) != 0)
> > > + {
> > > + printf ("pthread_getattr_np failed: %s\n", strerror (ret));
> > > + return (void *) (uintptr_t) 1;
> > > + }
> > > +
> > > + return verify_result (&attr);
> > > +}
> > > +
> > > +int
> > > +run_threads (void)
> > > +{
> > > + pthread_t t;
> > > + pthread_attr_t attr;
> > > + int ret, i;
> > > + void *tret;
> > > +
> > > + if ((ret = pthread_attr_init (&attr)) != 0)
> > > + {
> > > + printf ("pthread_attr_init failed: %s\n", strerror (ret));
> > > + return 1;
> > > + }
> > > +
> > > + if ((ret = pthread_attr_setstacksize (&attr, stacksize)) != 0)
> > > + {
> > > + printf ("pthread_attr_setstacksize failed: %s\n", strerror (ret));
> > > + return 1;
> > > + }
> > > +
> > > + if ((ret = pthread_attr_set_default_np (&attr)) != 0)
> > > + {
> > > + printf ("pthread_attr_set_default_np failed: %s\n", strerror (ret));
> > > + return 1;
> > > + }
> > > +
> > > + /* Run twice to ensure that the attributes do not get overwritten in the
> > > + first run somehow. */
> > > + for (i = 0; i < 2; i++)
> > > + {
> > > + if ((ret = pthread_create (&t, NULL, thr, NULL)) != 0)
> > > + {
> > > + printf ("pthread_create failed: %s\n", strerror (ret));
> > > + return 1;
> > > + }
> > > +
> > > + if ((ret = pthread_join (t, &tret)) != 0)
> > > + {
> > > + printf ("pthread_join failed: %s\n", strerror (ret));
> > > + return 1;
> > > + }
> > > +
> > > + if (tret != NULL)
> > > + {
> > > + puts ("Thread failed\n");
> > > + return 1;
> > > + }
> > > + }
> > > +
> > > + return 0;
> > > +}
> > > +
> > > +int
> > > +do_test (void)
> > > +{
> > > + long pagesize = sysconf (_SC_PAGESIZE);
> > > +
> > > + if (pagesize < 0)
> > > + {
> > > + printf ("sysconf failed: %s\n", strerror (errno));
> > > + return 1;
> > > + }
> > > +
> > > + /* Perturb the size by a page so that we're not aligned on the 64K boundary.
> > > + pthread_create does this perturbation on x86 to avoid causing the 64k
> > > + aliasing conflict. We want to prevent pthread_create from doing that
> > > + since it is not consistent for all architectures. */
> > > + stacksize += pagesize;
> > > +
> > > + /* Run twice to ensure that we don't give a false positive. */
> > > + puts ("First iteration");
> > > + int ret = run_threads ();
> > > +
> > > + if (ret)
> > > + return 1;
> > > +
> > > + puts ("Second iteration");
> > > + stacksize *= 2;
> > > + return run_threads ();
> > > +}
> > > +
> > > +#define TEST_FUNCTION do_test ()
> > > +#include "../test-skeleton.c"
> > > diff --git a/nptl/vars.c b/nptl/vars.c
> > > index 45ca486..3e2db42 100644
> > > --- a/nptl/vars.c
> > > +++ b/nptl/vars.c
> > > @@ -24,6 +24,9 @@
> > > provide any. */
> > > struct pthread_attr __default_pthread_attr attribute_hidden;
> > >
> > > +/* Mutex protecting __default_pthread_attr. */
> > > +int __default_pthread_attr_lock = LLL_LOCK_INITIALIZER;
> > > +
> > > /* Flag whether the machine is SMP or not. */
> > > int __is_smp attribute_hidden;
> > >
> > > diff --git a/ports/sysdeps/unix/sysv/linux/aarch64/nptl/libpthread.abilist b/ports/sysdeps/unix/sysv/linux/aarch64/nptl/libpthread.abilist
> > > index 696158a..f24e2e8 100644
> > > --- a/ports/sysdeps/unix/sysv/linux/aarch64/nptl/libpthread.abilist
> > > +++ b/ports/sysdeps/unix/sysv/linux/aarch64/nptl/libpthread.abilist
> > > @@ -222,3 +222,7 @@ GLIBC_2.17
> > > wait F
> > > waitpid F
> > > write F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > diff --git a/ports/sysdeps/unix/sysv/linux/alpha/nptl/libpthread.abilist b/ports/sysdeps/unix/sysv/linux/alpha/nptl/libpthread.abilist
> > > index 9626730..191c00d 100644
> > > --- a/ports/sysdeps/unix/sysv/linux/alpha/nptl/libpthread.abilist
> > > +++ b/ports/sysdeps/unix/sysv/linux/alpha/nptl/libpthread.abilist
> > > @@ -174,6 +174,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > __open64 F
> > > diff --git a/ports/sysdeps/unix/sysv/linux/arm/nptl/libpthread.abilist b/ports/sysdeps/unix/sysv/linux/arm/nptl/libpthread.abilist
> > > index de8095a..d7abe69 100644
> > > --- a/ports/sysdeps/unix/sysv/linux/arm/nptl/libpthread.abilist
> > > +++ b/ports/sysdeps/unix/sysv/linux/arm/nptl/libpthread.abilist
> > > @@ -8,6 +8,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.4
> > > GLIBC_2.4 A
> > > _IO_flockfile F
> > > diff --git a/ports/sysdeps/unix/sysv/linux/ia64/nptl/libpthread.abilist b/ports/sysdeps/unix/sysv/linux/ia64/nptl/libpthread.abilist
> > > index b7749e2..43df60b 100644
> > > --- a/ports/sysdeps/unix/sysv/linux/ia64/nptl/libpthread.abilist
> > > +++ b/ports/sysdeps/unix/sysv/linux/ia64/nptl/libpthread.abilist
> > > @@ -8,6 +8,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > _IO_flockfile F
> > > diff --git a/ports/sysdeps/unix/sysv/linux/m68k/coldfire/nptl/libpthread.abilist b/ports/sysdeps/unix/sysv/linux/m68k/coldfire/nptl/libpthread.abilist
> > > index de8095a..d7abe69 100644
> > > --- a/ports/sysdeps/unix/sysv/linux/m68k/coldfire/nptl/libpthread.abilist
> > > +++ b/ports/sysdeps/unix/sysv/linux/m68k/coldfire/nptl/libpthread.abilist
> > > @@ -8,6 +8,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.4
> > > GLIBC_2.4 A
> > > _IO_flockfile F
> > > diff --git a/ports/sysdeps/unix/sysv/linux/m68k/m680x0/nptl/libpthread.abilist b/ports/sysdeps/unix/sysv/linux/m68k/m680x0/nptl/libpthread.abilist
> > > index 827114f..ece7edf 100644
> > > --- a/ports/sysdeps/unix/sysv/linux/m68k/m680x0/nptl/libpthread.abilist
> > > +++ b/ports/sysdeps/unix/sysv/linux/m68k/m680x0/nptl/libpthread.abilist
> > > @@ -174,6 +174,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > __open64 F
> > > diff --git a/ports/sysdeps/unix/sysv/linux/mips/mips32/nptl/libpthread.abilist b/ports/sysdeps/unix/sysv/linux/mips/mips32/nptl/libpthread.abilist
> > > index c3ba9d4..05cfb3d 100644
> > > --- a/ports/sysdeps/unix/sysv/linux/mips/mips32/nptl/libpthread.abilist
> > > +++ b/ports/sysdeps/unix/sysv/linux/mips/mips32/nptl/libpthread.abilist
> > > @@ -130,6 +130,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > __libc_allocate_rtsig F
> > > diff --git a/ports/sysdeps/unix/sysv/linux/mips/mips64/n32/nptl/libpthread.abilist b/ports/sysdeps/unix/sysv/linux/mips/mips64/n32/nptl/libpthread.abilist
> > > index 4e0b07f..71634eb 100644
> > > --- a/ports/sysdeps/unix/sysv/linux/mips/mips64/n32/nptl/libpthread.abilist
> > > +++ b/ports/sysdeps/unix/sysv/linux/mips/mips64/n32/nptl/libpthread.abilist
> > > @@ -130,6 +130,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > __libc_allocate_rtsig F
> > > diff --git a/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/nptl/libpthread.abilist b/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/nptl/libpthread.abilist
> > > index 4e0b07f..71634eb 100644
> > > --- a/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/nptl/libpthread.abilist
> > > +++ b/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/nptl/libpthread.abilist
> > > @@ -130,6 +130,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > __libc_allocate_rtsig F
> > > diff --git a/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/libpthread.abilist b/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/libpthread.abilist
> > > index 7719099..18d24ed 100644
> > > --- a/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/libpthread.abilist
> > > +++ b/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/libpthread.abilist
> > > @@ -174,6 +174,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > __open64 F
> > > diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/nptl/libpthread.abilist b/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/nptl/libpthread.abilist
> > > index 658c4bf..de4f231 100644
> > > --- a/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/nptl/libpthread.abilist
> > > +++ b/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/nptl/libpthread.abilist
> > > @@ -222,3 +222,7 @@ GLIBC_2.12
> > > wait F
> > > waitpid F
> > > write F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/nptl/libpthread.abilist b/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/nptl/libpthread.abilist
> > > index 658c4bf..de4f231 100644
> > > --- a/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/nptl/libpthread.abilist
> > > +++ b/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/nptl/libpthread.abilist
> > > @@ -222,3 +222,7 @@ GLIBC_2.12
> > > wait F
> > > waitpid F
> > > write F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilepro/nptl/libpthread.abilist b/ports/sysdeps/unix/sysv/linux/tile/tilepro/nptl/libpthread.abilist
> > > index 658c4bf..de4f231 100644
> > > --- a/ports/sysdeps/unix/sysv/linux/tile/tilepro/nptl/libpthread.abilist
> > > +++ b/ports/sysdeps/unix/sysv/linux/tile/tilepro/nptl/libpthread.abilist
> > > @@ -222,3 +222,7 @@ GLIBC_2.12
> > > wait F
> > > waitpid F
> > > write F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > diff --git a/sysdeps/unix/sysv/linux/i386/nptl/libpthread.abilist b/sysdeps/unix/sysv/linux/i386/nptl/libpthread.abilist
> > > index 827114f..ece7edf 100644
> > > --- a/sysdeps/unix/sysv/linux/i386/nptl/libpthread.abilist
> > > +++ b/sysdeps/unix/sysv/linux/i386/nptl/libpthread.abilist
> > > @@ -174,6 +174,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > __open64 F
> > > diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libpthread.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libpthread.abilist
> > > index 7719099..18d24ed 100644
> > > --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libpthread.abilist
> > > +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libpthread.abilist
> > > @@ -174,6 +174,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > __open64 F
> > > diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libpthread.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libpthread.abilist
> > > index 7930c75..1ccc2e7 100644
> > > --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libpthread.abilist
> > > +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libpthread.abilist
> > > @@ -8,6 +8,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.3
> > > GLIBC_2.3 A
> > > _IO_flockfile F
> > > diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/nptl/libpthread.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/nptl/libpthread.abilist
> > > index 827114f..ece7edf 100644
> > > --- a/sysdeps/unix/sysv/linux/s390/s390-32/nptl/libpthread.abilist
> > > +++ b/sysdeps/unix/sysv/linux/s390/s390-32/nptl/libpthread.abilist
> > > @@ -174,6 +174,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > __open64 F
> > > diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/nptl/libpthread.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/nptl/libpthread.abilist
> > > index 596fdd3..ef9786b 100644
> > > --- a/sysdeps/unix/sysv/linux/s390/s390-64/nptl/libpthread.abilist
> > > +++ b/sysdeps/unix/sysv/linux/s390/s390-64/nptl/libpthread.abilist
> > > @@ -8,6 +8,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > _IO_flockfile F
> > > diff --git a/sysdeps/unix/sysv/linux/sh/nptl/libpthread.abilist b/sysdeps/unix/sysv/linux/sh/nptl/libpthread.abilist
> > > index 596fdd3..ef9786b 100644
> > > --- a/sysdeps/unix/sysv/linux/sh/nptl/libpthread.abilist
> > > +++ b/sysdeps/unix/sysv/linux/sh/nptl/libpthread.abilist
> > > @@ -8,6 +8,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > _IO_flockfile F
> > > diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libpthread.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libpthread.abilist
> > > index 9626730..191c00d 100644
> > > --- a/sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libpthread.abilist
> > > +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libpthread.abilist
> > > @@ -174,6 +174,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > __open64 F
> > > diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libpthread.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libpthread.abilist
> > > index b7749e2..43df60b 100644
> > > --- a/sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libpthread.abilist
> > > +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libpthread.abilist
> > > @@ -8,6 +8,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2
> > > GLIBC_2.2 A
> > > _IO_flockfile F
> > > diff --git a/sysdeps/unix/sysv/linux/x86_64/64/nptl/libpthread.abilist b/sysdeps/unix/sysv/linux/x86_64/64/nptl/libpthread.abilist
> > > index 7c33f35..8d3c68e 100644
> > > --- a/sysdeps/unix/sysv/linux/x86_64/64/nptl/libpthread.abilist
> > > +++ b/sysdeps/unix/sysv/linux/x86_64/64/nptl/libpthread.abilist
> > > @@ -8,6 +8,10 @@ GLIBC_2.12
> > > pthread_mutexattr_getrobust F
> > > pthread_mutexattr_setrobust F
> > > pthread_setname_np F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F
> > > GLIBC_2.2.5
> > > GLIBC_2.2.5 A
> > > _IO_flockfile F
> > > diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/nptl/libpthread.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/nptl/libpthread.abilist
> > > index b07d16f..fe53c17 100644
> > > --- a/sysdeps/unix/sysv/linux/x86_64/x32/nptl/libpthread.abilist
> > > +++ b/sysdeps/unix/sysv/linux/x86_64/x32/nptl/libpthread.abilist
> > > @@ -222,3 +222,7 @@ GLIBC_2.16
> > > wait F
> > > waitpid F
> > > write F
> > > +GLIBC_2.18
> > > + GLIBC_2.18 A
> > > + pthread_attr_get_default_np F
> > > + pthread_attr_set_default_np F