mq_notify (present in POSIX by 1996) brings in references to
pthread_barrier_init and pthread_barrier_wait (new in the 2001 edition
of POSIX). This patch fixes this by making those functions into weak
aliases of __pthread_barrier_*, exporting the __pthread_barrier_*
names at version GLIBC_PRIVATE and using them in mq_notify.
Tested for x86_64 and x86 (testsuite, and comparison of installed
stripped shared libraries). Changes in addresses from dynamic symbol
table / PLT changes render most comparisons not particularly useful,
but when the addresses of subsequent code don't change there's no sign
of unexpected changes there. This patch does not remove any
linknamespace XFAILs because of other namespace issues remaining with
mqueue.h functions.
[BZ #18544]
* nptl/pthread_barrier_init.c (pthread_barrier_init): Rename to
__pthread_barrier_init and define as weak alias of
__pthread_barrier_init.
* sysdeps/sparc/nptl/pthread_barrier_init.c
(pthread_barrier_init): Likewise.
* nptl/pthread_barrier_wait.c (pthread_barrier_wait): Rename to
__pthread_barrier_wait and define as weak alias of
__pthread_barrier_wait.
* sysdeps/sparc/nptl/pthread_barrier_wait.c
(pthread_barrier_wait): Likewise.
* sysdeps/sparc/sparc32/pthread_barrier_wait.c
(pthread_barrier_wait): Likewise.
* sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S
(pthread_barrier_wait): Likewise.
* sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S
(pthread_barrier_wait): Likewise.
* nptl/Versions (libpthread): Export __pthread_barrier_init and
__pthread_barrier_wait at version GLIBC_PRIVATE.
* include/pthread.h (__pthread_barrier_init): Declare.
(__pthread_barrier_wait): Likewise.
* sysdeps/unix/sysv/linux/mq_notify.c (notification_function):
Call __pthread_barrier_wait instead of pthread_barrier_wait.
(helper_thread): Likewise.
(init_mq_netlink): Call __pthread_barrier_init instead of
pthread_barrier_init.
actually iterate over the elements. Fix typo p_type -> p_vaddr.
* include/pthread.h: Don't declare __pthread_initialize_minimal as
weak here; we declare it weak or strong in the one place we use it.
* sysdeps/generic/libc-start.c: ... which is here.
Don't make the decl weak if [USE_TLS], since static programs need TLS
setup even when single-threaded.
2001-02-06 Andreas Jaeger <aj@suse.de>
* include/pthread.h: New file.
* wctype/wctype.h: Move internal interfaces from here to...
* include/wctype.h: ...here.
* wcsmbs/wchar.h: Move __wcslen from here to...
* include/wchar.h: ...here.
* posix/sys/wait.h: Move __wait from here to...
* include/sys/wait.h: ...here.
* string/string.h: Move __ffs and __strerror_r from here to...
* include/string.h: ...here.
* stdlib/stdlib.h: Move __on_exit from here to...
* include/stdlib.h: ...here.
* libio/stdio.h: Move __vsnprintf from here to...
* include/stdio.h: ...here.
Joseph Myers
Ulrich Drepper
Roland McGrath
Andreas Jaeger