Age | Commit message (Collapse) | Author |
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[BZ #10686]
* sysdeps/x86_64/tls.h (struct tcbhead_t): Add __private_ss
field.
* sysdeps/i386/tls.h (struct tcbhead_t): Likewise.
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2013-05-09 Andi Kleen <ak@linux.intel.com>
* tst-mutex8.c (do_test): Check for ENABLE_PI.
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Define inline functions that wrap around validation for each of the
pthread attributes to reduce duplication in code.
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The sem_post.c file uses atomic functions without including
atomic.h. Add `#include <atomic.h>' to the file to prevent
any compile time warnings when other headers change and
atomic.h isn't implicitly included.
---
nptl/
2013-04-07 Carlos O'Donell <carlos@redhat.com>
* sysdeps/unix/sysv/linux/sem_post.c: Include atomic.h.
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Fixes BZ #15337.
Static builds fail with the following warning:
/home/tools/glibc/glibc/nptl/../nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S:80:
undefined reference to `__GI___pthread_unwind'
When the source is configured with --disable-hidden-plt. This is
because the preprocessor conditional in cancellation.S only checks if
the build is for SHARED, whereas hidden_def is defined appropriately
only for a SHARED build that will have symbol versioning *and* hidden
defs are enabled. The last case is false here.
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I forgot to fix up the ChangeLog after renaming __default_attr to
__default_pthread_attr in code.
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Make __default_pthread_attr object to store default attribute values
for threads.
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Rename some static variables to give them unique names.
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This reverts the change that allows the POSIX Thread default stack size
to be changed by the environment variable
GLIBC_PTHREAD_DEFAULT_STACKSIZE. It has been requested that more
discussion happen before this change goes into 2.18.
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New environment variable GLIBC_PTHREAD_DEFAULT_STACKSIZE to do this.
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* sysdeps/unix/sysv/linux/sparc/lowlevellock.h
(FUTEX_WAIT_REQUEUE_PI): Define.
(FUTEX_CMP_REQUEUE_PI): Likewise.
(lll_futex_wait_requeue_pi): Likewise.
(lll_futex_timed_wait_requeue_pi): Likewise.
(lll_futex_cmp_requeue_pi): Likewise.
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This feature is specifically for the C++ compiler to offload calling
thread_local object destructors on thread program exit, to glibc.
This is to overcome the possible complication of destructors of
thread_local objects getting called after the DSO in which they're
defined is unloaded by the dynamic linker. The DSO is marked as
'unloadable' if it has a constructed thread_local object and marked as
'unloadable' again when all the constructed thread_local objects
defined in it are destroyed.
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Include stdlib.h to get declaration of exit(3)
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Add FUTEX_*_REQUEUE_PI support for the default C code and also add
implementations for s-390 and ppc.
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absolute timeout"
This reverts commit 1bd57044e963abb886cb912beadea714815a3d5c.
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* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
(__pthread_cond_timedwait): If possible use FUTEX_WAIT_BITSET to
directly use absolute timeout.
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2012-12-28 Andi Kleen <ak@linux.intel.com>
* pthread_rwlock_tryrdlock.c (__pthread_rwlock_tryrdlock):
* Convert
to prototype.
* pthread_rwlock_trywrlock.c (__pthread_rwlock_trywrlock):
Likewise.
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nptl/
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h
(lll_futex_timed_wait_bitset): New macro.
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Since the FUTEX_WAIT operation takes a relative timeout, the
pthread_cond_timedwait and other timed function implementations have
to get a relative timeout from the absolute timeout parameter it gets
before it makes the futex syscall. This value is then converted back
into an absolute timeout within the kernel. This is a waste and has
hence been improved upon by a FUTEX_WAIT_BITSET operation (OR'd with
FUTEX_CLOCK_REALTIME to make the kernel use the realtime clock instead
of the default monotonic clock). This was implemented only in the x86
and sh assembly code and not in the C code. This patch implements
support for FUTEX_WAIT_BITSET whenever available (since linux-2.6.29)
for s390 and powerpc.
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nptl/
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h (BUSY_WAIT_NOP):
Add missing spaces.
(__cpu_relax): Likewise.
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