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2021-06-25Linux: Move mq_notify from librt to libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. An explicit call from fork into the mq_notify implementation replaces the previous use of pthread_atfork. Reviewed-by: Adhemerva Zanella <adhemerval.zanella@linaro.org>
2021-06-09nptl: Implement raise in terms of pthread_killAdhemerval Zanella
Now that pthread_kill is provided by libc.so it is possible to implement the generic POSIX implementation as 'pthread_kill(pthread_self(), sig)'. For Linux implementation, pthread_kill read the targeting TID from the TCB. For raise, this it not possible because it would make raise fail when issue after vfork (where creates the resulting process has a different TID from the parent, but its TCB is not updated as for pthread_create). To make raise use pthread_kill, it is make usable from vfork by getting the target thread id through gettid syscall. Checked on x86_64-linux-gnu and aarch64-linux-gnu.
2021-05-06nptl: Move pthread_barrier_init into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2015-06-17Fix mq_notify pthread_barrier_* namespace (bug 18544).Joseph Myers
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.
2012-02-25First steps to get conformtest fully workingUlrich Drepper
2002-08-05* sysdeps/generic/libc-tls.c (__libc_setup_tls): Make the phdr loopRoland McGrath
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.
2001-02-06Update.Andreas Jaeger
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.