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2021-05-10nptl: Move __default_pthread_attr, __default_pthread_attr_lock into libcFlorian Weimer
The GLIBC_PRIVATE exports for these symbols are expected to be temporary. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10nptl: Simplify resetting the in-flight stack in __reclaim_stacksFlorian Weimer
stack_list_del overwrites the in-flight stack variable. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10nptl: Move changing of stack permissions into ld.soFlorian Weimer
All the stack lists are now in _rtld_global, so it is possible to change stack permissions directly from there, instead of calling into libpthread to do the change. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10nptl: Simplify the change_stack_perm calling conventionFlorian Weimer
Only ia64 needs the page mask, and it is straightforward to compute the value within the function itself. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10nptl: Move more stack management variables into _rtld_globalFlorian Weimer
Permissions of the cached stacks may have to be updated if an object is loaded that requires executable stacks, so the dynamic loader needs to know about these cached stacks. The move of in_flight_stack and stack_cache_actsize is a requirement for merging __reclaim_stacks into the fork implementation in libc. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10nptl: Eliminate __pthread_multiple_threadsFlorian Weimer
It is no longer needed after the SINGLE_THREADED_P consolidation. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10nptl: Export __libc_multiple_threads from libc as an internal symbolFlorian Weimer
This allows the elimination of the __libc_multiple_threads_ptr variable in libpthread and its initialization procedure. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10elf, nptl: Resolve recursive lock implementation earlyFlorian Weimer
If libpthread is included in libc, it is not necessary to delay initialization of the lock/unlock function pointers until libpthread is loaded. This eliminates two unprotected function pointers from _rtld_global and removes some initialization code from libpthread. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-06nptl: Move pthread_barrierattr_setpshared into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-06nptl: Move pthread_barrierattr_getpshared into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-06nptl: Move pthread_barrierattr_init into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-06nptl: Move pthread_barrierattr_destroy into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-06nptl: Move pthread_barrier_wait into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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>
2021-05-06nptl: Move pthread_barrier_destroy into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-05nptl: Move sem_trywait, sem_wait into libcFlorian Weimer
The symbols were moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-05nptl: Move sem_unlink into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. A small adjust to the sem_unlink implementation is necessary to avoid a check-localplt failure. A placeholder symbol to keep the GLIBC_2.1.1 version alive in libpthread is added with this commit. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-05nptl: Move sem_timedwait into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-05nptl: Move sem_post into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-05nptl: Move sem_init into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-05nptl: Move sem_getvalue into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-05nptl: Move sem_destroy into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-05nptl: Move sem_close, sem_open into libcFlorian Weimer
The symbols were moved using move-symbol-to-libc.py. Both functions are moved at the same time because they depend on internal functions in sysdeps/pthread/sem_routines.c, which are moved in this commit as well. Additional hidden prototypes are required to avoid check-localplt failures. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-05nptl: Move sem_clockwait into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. A new placeholder version is added at version GLIBC_2.30, to preserve that version in libpthread.so.0. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-05nptl: Consolidate async cancel enable/disable implementation in libcFlorian Weimer
Previously, the source file nptl/cancellation.c was compiled multiple times, for libc, libpthread, librt. This commit switches to a single implementation, with new __pthread_enable_asynccancel@@GLIBC_PRIVATE, __pthread_disable_asynccancel@@GLIBC_PRIVATE exports. The almost-unused CANCEL_ASYNC and CANCEL_RESET macros are replaced by LIBC_CANCEL_ASYNC and LIBC_CANCEL_ASYNC macros. They call the __pthread_* functions unconditionally now. The macros are still needed because shared code uses them; Hurd has different definitions. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-05nptl: Move pthread_testcancel into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. A temporary __pthread_testcancel@@GLIBC_PRIVATE export is created because it is needed by the semaphore implementation. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-05elf, nptl: Initialize static TLS directly in ld.soFlorian Weimer
The stack list is available in ld.so since commit 1daccf403b1bd86370eb94edca794dc106d02039 ("nptl: Move stack list variables into _rtld_global"), so it's possible to walk the stack list directly in ld.so and perform the initialization there. This eliminates an unprotected function pointer from _rtld_global and reduces the libpthread initialization code.
2021-05-03nptl: Re-sort Versions fileFlorian Weimer
Due to an incorrect conflict resolution, libc/GLIBC_2.2 section was no longer sorted lexicographically.
2021-05-03nptl: Move pthread_yield into libc, as a compatibility symbolFlorian Weimer
And deprecate it in <pthread.h>, redirecting it to sched_yield for the time being. The symbol was moved using scripts/move-symbol-to-libc.py. No GLIBC_2.34 symbol version is added because of the compatibility symbol status. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlockattr_setpshared into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlockattr_setkind_np into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlockattr_init into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlockattr_getpshared into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlockattr_getkind_np into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlockattr_destroy into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlock_trywrlock into libcFlorian Weimer
And __pthread_rwlock_trywrlock as a compatibility symbol. Remove the unused __libc_rwlock_trywrlock macro. The symbols were moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlock_tryrdlock into libcFlorian Weimer
And __pthread_rwlock_tryrdlock as a compatibility symbol. Remove the unused __libc_rwlock_tryrdlock macro. The symbols were moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlock_timedwrlock into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlock_timedrdlock into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlock_init into libcFlorian Weimer
And __pthread_rwlock_init as a compatibility symbol. __libc_rwlock_init is changed to call __pthread_rwlock_init directly. The symbols were moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlock_destroy into libcFlorian Weimer
And __pthread_rwlock_destroy as a compatibility symbol. rwlocks do not need finalization, so change __libc_rwlock_fini to do nothing. The symbols were moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlock_clockwrlock into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move pthread_rwlock_clockrdlock into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move tss_set into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. __pthread_setspecific@@GLIBC_2.34 is no longer needed after the move, so it is removed with this commit, too. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move tss_get into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. __pthread_getspecific@@GLIBC_2.34 is no longer needed after the move, so it is removed with this commit, too. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move tss_delete into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. __pthread_key_delete@@GLIBC_PRIVATE is no longer needed after that, so it is removed as well. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move tss_create into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. __pthread_key_create@@GLIBC_2.34 is no longer needed by glibc itself with this change, but __pthread_key_create is used by libstdc++, so it still has to be exported as a public symbol. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move thrd_exit into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. The __pthread_exit@@GLIBC_PRIVATE symbol is no longer needed after this change, so remove it. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move mtx_unlock into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. __pthread_mutex_unlock@GLIBC_2.34 is not removed in this commit because it is still used from nptl/nptl-init.c. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-05-03nptl: Move mtx_trylock into libcFlorian Weimer
The symbol was moved using scripts/move-symbol-to-libc.py. The __pthread_mutex_trylock@@GLIBC_2.34 symbol version is no longer needed because the call is now internal to libc, so remove it with this commit. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>