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2020-02-12Linux: Work around kernel bugs in chmod on /proc/self/fd pathsfw/tst-lchmodFlorian Weimer
It appears that the ability to change symbolic link modes through such paths is unintended. On several file systems, the operation fails with EOPNOTSUPP, even though the symbolic link permissions are updated. The expected behavior is a failure to update the permissions, without file system changes.
2020-02-12Rename RWF_WRITE_LIFE_NOT_SET to RWH_WRITE_LIFE_NOT_SET following Linux 5.5.Joseph Myers
Linux 5.5 renames RWF_WRITE_LIFE_NOT_SET to RWH_WRITE_LIFE_NOT_SET, with the old name kept as an alias. This patch makes the corresponding change in glibc. Tested for x86_64.
2020-02-12S390: Fix non-ascii character in fenv.h.Stefan Liebler
The comment "isn't" contained a non-ascii character which leads to an error if compiled with -finput-charset=ascii: error: failure to convert ascii to UTF-8 This is observable in GCC testsuite: FAIL: 17_intro/headers/c++1998/charset.cc (test for excess errors) FAIL: 17_intro/headers/c++2011/charset.cc (test for excess errors) FAIL: 17_intro/headers/c++2014/charset.cc (test for excess errors) FAIL: 17_intro/headers/c++2017/charset.cc (test for excess errors) FAIL: 17_intro/headers/c++2020/charset.cc (test for excess errors) Also rewrite the comment above. Reported-by: Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
2020-02-12Linux: Emulate fchmodat with AT_SYMLINK_NOFOLLOW using O_PATH [BZ #14578]Florian Weimer
/proc/self/fd files are special and chmod on O_PATH descriptors in that directory operates on the symbolic link itself (like lchmod).
2020-02-12io: Implement lchmod using fchmodat [BZ #14578]Florian Weimer
2020-02-10htl C11 threads: Avoid pthread_ symbols visibility in static librarySamuel Thibault
2020-02-11hurd: Add __pthread_spin_wait and use itSamuel Thibault
900778283ac3 ("htl: make pthread_spin_lock really spin") made pthread_spin_lock really spin and not block, but the current users of __pthread_spin_lock were assuming that it blocks, i.e. they use it as a lightweight mutex fitting in just one int. __pthread_spin_wait provides that support back.
2020-02-10ldbl-128ibm-compat: set PRINTF_CHK flag in {,v}sprintf_chkPaul E. Murphy
This should be unconditionally set to match the common implementation, and fixes multiple test failures related to sprintf. Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
2020-02-10nptl: update default pthread-offsets.hAndreas Schwab
Remove unused definitions, and correct __PTHREAD_RWLOCK_FLAGS_OFFSET for __WORDSIZE == 64.
2020-02-10nptl: add missing pthread-offsets.hAndreas Schwab
All architectures using their own definition of struct __pthread_rwlock_arch_t need to provide their own pthread-offsets.h.
2020-02-10pthread: Move some join tests from nptl to sysdeps/pthreadSamuel Thibault
So they can be checked with htl too.
2020-02-10pthread: Move most barrier tests from nptl to sysdeps/pthreadSamuel Thibault
So they can be checked with htl too.
2020-02-10htl: Fix barrier_wait with one threadSamuel Thibault
2020-02-10pthread: Move most sem tests from nptl to sysdeps/pthreadSamuel Thibault
So they can be checked with htl too.
2020-02-10htl: Make sem_wait/sem_timedwait interruptibleSamuel Thibault
2020-02-10htl: Make sem_open return ENOSYSSamuel Thibault
instead of EOPNOTSUPP, which is for sockets.
2020-02-10htl: Add support for semaphore maximum valueSamuel Thibault
2020-02-10pthread: Move key tests from nptl to sysdeps/pthreadSamuel Thibault
So they can be checked with htl too.
2020-02-10hurd: Make nanosleep a cancellation pointSamuel Thibault
2020-02-10htl: Add support for libc cancellation pointsSamuel Thibault
2020-02-10htl: clean __pthread_get_cleanup_stack hidden protoSamuel Thibault
2020-02-09htl: XFAIL rwlock tests which need pshared supportSamuel Thibault
2020-02-09pthread: Move some rwlock tests from nptl to sysdeps/pthreadSamuel Thibault
So they can be checked with htl too.
2020-02-09pthread: Move most once tests from nptl to sysdeps/pthreadSamuel Thibault
So they can be checked with htl too.
2020-02-09htl: support cancellation during pthread_onceSamuel Thibault
2020-02-09pthread: Move most cond tests from nptl to sysdeps/pthreadSamuel Thibault
So they can be checked with htl too.
2020-02-09htl: make pthread_cond_destroy return EBUSY on waitersSamuel Thibault
2020-02-09htl: Report missing mutex lock on pthread_cond_*waitSamuel Thibault
2020-02-09pthread: Move some attr tests from nptl to sysdeps/pthreadSamuel Thibault
So they can be checked with htl too.
2020-02-09htl: Fix default guard sizeSamuel Thibault
When it is not hardcoded by the architecture with PAGESIZE, we need to use the dynamic values from __vm_page_size.
2020-02-09pthread: Move most mutex tests from nptl to sysdeps/pthreadSamuel Thibault
So they can be checked with htl too. XFAIL tst-mutex4, for which support is still missing in htl.
2020-02-09pthread: Move spin tests from nptl to sysdeps/pthreadSamuel Thibault
So they can be checked with htl too.
2020-02-09htl: make pthread_spin_lock really spinSamuel Thibault
__spin_lock would actually use gsync_wait to block, which is not what pthread_spin_lock is about.
2020-02-09htl: Avoid check-installed-headers looking at inlinesSamuel Thibault
2020-02-09htl: Do not put spin_lock inlines in public headersSamuel Thibault
They were not getting used anyway. Also do not make libsupport use them, it would make tests using it have to be made to link against libmachuser for gsync_wait.
2020-02-09pthread: Move basic tests from nptl to sysdeps/pthreadSamuel Thibault
So they can be checked with htl too.
2020-02-09htl: Fix calling pthread_exit in the child of a forkSamuel Thibault
We need to reset the threads counter, otherwise pthread_exit() would not call exit(0).
2020-02-09x86: Remove <bits/select.h> and use the generic versionFlorian Weimer
Particularly on CPUs without ERMS, the string instructions are slow, so it is unclear whether this architecture-specific implementation is in fact an optimization.
2020-02-09C11 threads: Move implementation to sysdeps/pthreadSamuel Thibault
so it gets shared by nptl and htl. Also add htl versions of thrd_current and thrd_yield. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2020-02-09htl: Add C11 threads types definitionsSamuel Thibault
2020-02-09nptl: Move nptl-specific types to separate headerSamuel Thibault
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2020-02-09htl: Make __PTHREAD_ONCE_INIT more flexibleSamuel Thibault
by moving its (struct __pthread_once) cast into PTHREAD_ONCE_INIT. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2020-02-09htl: Add support for C11 threads behaviorSamuel Thibault
Essentially properly calling the thread function which returns an int instead of a void*. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2020-02-09htl: Add missing internal functions declarationsSamuel Thibault
2020-02-09htl: Rename _pthread_mutex_init/destroy to __pthread_mutex_init/destroySamuel Thibault
2020-02-09htl: Move internal mutex/rwlock symbols to GLIBC_PRIVATESamuel Thibault
Their prototypes have never been made public, and they are not used outside libc (checked on the whole Debian archive)
2020-02-09Linux: Add io/tst-o_path-locks testFlorian Weimer
The O_PATH-based fchmodat emulation will rely on the fact that closing an O_PATH descriptor never releases POSIX advisory locks, so this commit adds a test case for this behavior.
2020-02-09htl: Remove duplicate filesSamuel Thibault
The generic versions have the same content.
2020-02-09htl: Remove unused filesSamuel Thibault
These have never been used.
2020-02-07Remove a comment claiming that sin/cos round correctly.Wilco Dijkstra
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