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2021-07-09nptl: Use out-of-line wake function in __libc_lock_unlock slow pathFlorian Weimer1-0/+1
This slightly reduces code size, as can be seen below. __libc_lock_unlock is usually used along with __libc_lock_lock in the same function. __libc_lock_lock already has an out-of-line slow path, so this change should not introduce many additional non-leaf functions. This change also fixes a link failure in 32-bit Arm thumb mode because commit 1f9c804fbd699104adefbce9e56d2c8aa711b6b9 ("nptl: Use internal low-level lock type for !IS_IN (libc)") introduced __libc_do_syscall calls outside of libc. Before x86-64: text data bss dec hex filename 1937748 20456 54896 2013100 1eb7ac libc.so.6 25601 856 12768 39225 9939 nss/libnss_db.so.2 40310 952 25144 66406 10366 nss/libnss_files.so.2 After x86-64: text data bss dec hex filename 1935312 20456 54896 2010664 1eae28 libc.so.6 25559 864 12768 39191 9917 nss/libnss_db.so.2 39764 960 25144 65868 1014c nss/libnss_files.so.2 Before i686: 2110961 11272 39144 2161377 20fae1 libc.so.6 27243 428 12652 40323 9d83 nss/libnss_db.so.2 43062 476 25028 68566 10bd6 nss/libnss_files.so.2 After i686: 2107347 11272 39144 2157763 20ecc3 libc.so.6 26929 432 12652 40013 9c4d nss/libnss_db.so.2 43132 480 25028 68640 10c20 nss/libnss_files.so.2 Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-07-07nptl: Reduce the GLIBC_PRIVATE ABIFlorian Weimer1-42/+0
The remaining symbols are mostly used by libthread_db. __pthread_get_minstack has to remain exported even though unused. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-07-07nptl: Remove GLIBC_2.34 versions of __pthread_mutex_lock, __pthread_mutex_unlockFlorian Weimer1-2/+0
Now that there are no internal users anymore, these new symbol versions can be removed from the public ABI. The compatibility symbols remain. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-06-28nptl: Export libthread_db-used symbols under GLIBC_PRIVATEFlorian Weimer1-0/+58
This allows distributions to strip debugging information from libc.so.6 without impacting the debugging experience. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-06-22Remove unsused symbols from nptl/VersionsAndreas Schwab1-6/+0
The (private) symbols __pthread_clock_gettime, __pthread_clock_settime and __pthread_initialize_minimal haven't been defined by libpthread for some time.
2021-06-15nptl: Export _pthread_cleanup_push, _pthread_cleanup_pop againFlorian Weimer1-0/+2
These were turned into compat symbols as part of the libpthread move. It turns out they are used by language run-time libraries (e.g., the GCC D front end), so it makes to preserve them as external symbols even though they are not declared in any header file. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-06-09nptl: Install cancellation handler on pthread_cancelAdhemerval Zanella1-2/+1
Now that cancellation is not used anymore to handle thread setup creation failure, the sighandle can be installed only when pthread_cancel is actually used. Checked on x86_64-linux-gnu and aarch64-linux-gnu.
2021-06-02Add missing symbols to Version filesFlorian Weimer1-0/+8
Some symbols have explicit versioned_symbol or compat_symbol markers in the sources, but no corresponding entry in the Versions files. This presently works because the local: * directive is only applied to the base version. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-21nptl: Remove remaining code from libpthreadFlorian Weimer1-11/+1
Only the placeholder compatibility symbols are left now. The __errno_location symbol was removed (moved) using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-21nptl: Move pthread_create, thrd_create into libcFlorian Weimer1-5/+9
The symbols were moved using scripts/move-symbol-to-libc.py. The libpthread placeholder symbols need some changes because some symbol versions have gone away completely. But __errno_location@@GLIBC_2.0 still exists, so the GLIBC_2.0 version is still there. The internal __pthread_create symbol now points to the correct function, so the sysdeps/nptl/thrd_create.c override is no longer necessary. There was an issue how the hidden alias of pthread_getattr_default_np was defined, so this commit cleans up that aspects and removes the GLIBC_PRIVATE export altogether. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-21nptl: Move semi-public __pthread_get_minstack symbol into libcFlorian Weimer1-1/+1
No abilist updates here because it is a GLIBC_PRIVATE symbol. It's also necessary to move nptl_version into pthread_create, so that it still ends up in static binaries. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-21nptl: Perform signal initialization upon pthread_createFlorian Weimer1-2/+3
Install signal handlers and unblock signals before pthread_create creates the first thread. create_thread in sysdeps/unix/sysv/linux/createthread.c can send SIGCANCEL to the current thread, so the SIGCANCEL handler is currently needed even if pthread_cancel is never called. (The way timer_create uses SIGCANCEL does not need a signal handler; both SIG_DFL and SIG_IGN dispositions should work.) Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-17nptl: Move pthread_sigqueue into libcFlorian Weimer1-1/+5
The symbol was moved using scripts/move-symbol-to-libc.py. The GLIBC_2.11 version is now empty, so add a placeholder symbol. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-17nptl: Move pthread_setschedprio into libcFlorian Weimer1-2/+3
The symbol was moved using scripts/move-symbol-to-libc.py. The GLIBC_2.3.4 version is now empty, so add a placeholder symbol. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-17nptl: Move pthread_setname_np into libcFlorian Weimer1-1/+6
The symbol was moved using scripts/move-symbol-to-libc.py. Add __libpthread_version_placeholder@@GLIBC_2.12 for the targets that need it. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-17nptl: Move pthread_setaffinity_np into libcFlorian Weimer1-2/+3
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-17nptl: Move pthread_getname_np into libcFlorian Weimer1-1/+2
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-17nptl: Move pthread_getcpuclockid into libcFlorian Weimer1-4/+3
The symbol was moved using scripts/move-symbol-to-libc.py. __libpthread_version_placeholder@@GLIBC_2.2 is needed by this change; the Versions entry for GLIBC_2.2 in libpthread had leftover symbols due to an error in a previous conflict resolution. The condition for the placeholder symbol is complicated because some architectures have earlier symbols at the GLIBC_2.2 symbol versions, so the placeholder is not required there (yet). Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-17nptl: Move pthread_getattr_default_np into libcFlorian Weimer1-1/+7
The symbol was moved using scripts/move-symbol-to-libc.py. A new placeholder symbol __libpthread_version_placeholder@GLIBC_2.18 is needed to keep the GLIBC_2.18 symbol version in libpthread. The __pthread_getattr_default_np@@GLIBC_PRIVATE export is used from pthread_create. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-17nptl: Move __nptl_create_event, __nptl_death_event into libcFlorian Weimer1-0/+2
In libthread_db, use the exported GLIBC_PRIVATE symbols directly instead of relying on _thread_db_* variables in libpthread (which used to be created by the DB_FUNCTION macros). Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-17nptl: Move __nptl_initial_report_events into ld.so/startup codeFlorian Weimer1-0/+1
The initialization of the report_events TCB field is now performed in __tls_init_tp instead of __pthread_initialize_minimal_internal (in libpthread). The events interface is difficult to test because GDB stopped using it in 2015. The td_thr_get_info change to ignore lookup issues is enough to support GDB with this change. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move pthread_getconcurrency, pthread_setconcurrency into libcFlorian Weimer1-2/+4
The symbols were moved using scripts/move-symbol-to-libc.py, in one commit due to their dependency on the internal __concurrency_level variable. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move pthread_cancel into libcFlorian Weimer1-1/+2
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move __pthread_register_cancel_defer, ↵Florian Weimer1-2/+4
__pthread_unregister_cancel_restore to libc The symbols were moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move __pthread_register_cancel, __pthread_unregister_cancel to libcFlorian Weimer1-2/+4
The symbols were moved using scripts/move-symbol-to-libc.py. Also clean up some unwinder linking leftover in the same spot in nptl/pthreadP.h. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move pthread_attr_setstacksize into libcFlorian Weimer1-1/+2
The symbol was moved using scripts/move-symbol-to-libc.py. It is necessary to arrange for a __libpthread_version_placeholder@GLIBC_2.6 on some of the powerpc targets. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move pthread_attr_setstackaddr into libcFlorian Weimer1-1/+2
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move pthread_attr_setstack into libcFlorian Weimer1-1/+2
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move pthread_attr_setguardsize into libcFlorian Weimer1-1/+2
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move pthread_attr_getstacksize into libcFlorian Weimer1-1/+2
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move pthread_attr_getstackaddr into libcFlorian Weimer1-1/+2
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move pthread_attr_getstack into libcFlorian Weimer1-1/+2
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move pthread_attr_getguardsize into libcFlorian Weimer1-1/+2
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move pthread_attr_getaffinity_np into libcFlorian Weimer1-2/+3
The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move thread join functions into libcFlorian Weimer1-5/+13
The symbols pthread_clockjoin_np, pthread_join, pthread_timedjoin_np, pthread_tryjoin_np, thrd_join were moved using scripts/move-symbol-to-libc.py. Moving the symbols at the same time avoids the need for temporary exports. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move pthread_detach, thrd_detach into libcFlorian Weimer1-2/+4
The symbols were moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move __free_tcb into libcFlorian Weimer1-0/+1
Under the name __nptl_free_tcb. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move stack cache management, __libpthread_freeres into libcFlorian Weimer1-2/+3
This replaces the FREE_P macro with the __nptl_stack_in_use inline function. stack_list_del is renamed to __nptl_stack_list_del, stack_list_add to __nptl_stack_list_add, __deallocate_stack to __nptl_deallocate_stack, free_stacks to __nptl_free_stacks. It is convenient to move __libpthread_freeres into libc at the same time. This removes the temporary __default_pthread_attr_freeres export and restores full freeres coverage for __default_pthread_attr. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-11nptl: Move pthread_setattr_default_np into libcFlorian Weimer1-2/+6
The symbol was moved using scripts/move-symbol-to-libc.py. The export of __default_pthread_attr_freeres is temporary. There is a minor regression in freeres coverage because in the dynamic case, __default_pthread_attr_freeres is no longer called if libpthread is not linked in. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2021-05-10Linux: Move __reclaim_stacks into the fork implementation in libcFlorian Weimer1-1/+0
As a result, __libc_pthread_init is no longer needed. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-05-10nptl: Move __default_pthread_attr, __default_pthread_attr_lock into libcFlorian Weimer1-0/+2
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: Export __libc_multiple_threads from libc as an internal symbolFlorian Weimer1-0/+1
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>
2021-05-06nptl: Move pthread_barrierattr_setpshared into libcFlorian Weimer1-1/+2
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 Weimer1-1/+2
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 Weimer1-1/+2
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 Weimer1-1/+2
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 Weimer1-2/+3
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 Weimer1-2/+3
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 Weimer1-1/+2
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 Weimer1-4/+6
The symbols were moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
generated by cgit v1.1 at 2024-09-05 21:24:18 +0000