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* Fix deadlock when pthread_atfork handler calls pthread_atfork or dlcloseArjun Shankar2022-05-255-4/+372
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In multi-threaded programs, registering via pthread_atfork, de-registering implicitly via dlclose, or running pthread_atfork handlers during fork was protected by an internal lock. This meant that a pthread_atfork handler attempting to register another handler or dlclose a dynamically loaded library would lead to a deadlock. This commit fixes the deadlock in the following way: During the execution of handlers at fork time, the atfork lock is released prior to the execution of each handler and taken again upon its return. Any handler registrations or de-registrations that occurred during the execution of the handler are accounted for before proceeding with further handler execution. If a handler that hasn't been executed yet gets de-registered by another handler during fork, it will not be executed. If a handler gets registered by another handler during fork, it will not be executed during that particular fork. The possibility that handlers may now be registered or deregistered during handler execution means that identifying the next handler to be run after a given handler may register/de-register others requires some bookkeeping. The fork_handler struct has an additional field, 'id', which is assigned sequentially during registration. Thus, handlers are executed in ascending order of 'id' during 'prepare', and descending order of 'id' during parent/child handler execution after the fork. Two tests are included: * tst-atfork3: Adhemerval Zanella <adhemerval.zanella@linaro.org> This test exercises calling dlclose from prepare, parent, and child handlers. * tst-atfork4: This test exercises calling pthread_atfork and dlclose from the prepare handler. [BZ #24595, BZ #27054] Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Handle spurious EINTR when thread cancellation is disabled (BZ#29029)Adhemerval Zanella2022-04-142-0/+208
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some Linux interfaces never restart after being interrupted by a signal handler, regardless of the use of SA_RESTART [1]. It means that for pthread cancellation, if the target thread disables cancellation with pthread_setcancelstate and calls such interfaces (like poll or select), it should not see spurious EINTR failures due the internal SIGCANCEL. However recent changes made pthread_cancel to always sent the internal signal, regardless of the target thread cancellation status or type. To fix it, the previous semantic is restored, where the cancel signal is only sent if the target thread has cancelation enabled in asynchronous mode. The cancel state and cancel type is moved back to cancelhandling and atomic operation are used to synchronize between threads. The patch essentially revert the following commits: 8c1c0aae20 nptl: Move cancel type out of cancelhandling 2b51742531 nptl: Move cancel state out of cancelhandling 26cfbb7162 nptl: Remove CANCELING_BITMASK However I changed the atomic operation to follow the internal C11 semantic and removed the MACRO usage, it simplifies a bit the resulting code (and removes another usage of the old atomic macros). Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, and powerpc64-linux-gnu. [1] https://man7.org/linux/man-pages/man7/signal.7.html Reviewed-by: Florian Weimer <fweimer@redhat.com> Tested-by: Aurelien Jarno <aurelien@aurel32.net>
* pthread: Do not overwrite tests-time64Adhemerval Zanella2022-03-071-1/+1
| | | | So nptl/Makefile tests are not overwritten.
* pthread: Use 64 bit time_t stat internally for sem_open (BZ #28880)Adhemerval Zanella2022-02-161-4/+4
| | | | | | | | | | The __sem_check_add_mapping internal stat calls fails with EOVERFLOW if system time is larger than 32 bit. It is a missing spot from 52a5fe70a2c fix to use 64 bit stat internally. Checked on x86_64-linux-gnu and i686-linux-gnu.
* Update copyright dates with scripts/update-copyrightsPaul Eggert2022-01-01250-250/+250
| | | | | | | | | | | | | | | | | | | | | | | I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
* nptl: Add one more barrier to nptl/tst-create1Florian Weimer2021-12-101-0/+4
| | | | | | | | | | | | | | | | | | | | | | Without the bar_ctor_finish barrier, it was possible that thread2 re-locked user_lock before ctor had a chance to lock it. ctor then blocked in its locking operation, xdlopen from the main thread did not return, and thread2 was stuck waiting in bar_dtor: thread 1: started. thread 2: started. thread 2: locked user_lock. constructor started: 0. thread 1: in ctor: started. thread 3: started. thread 3: done. thread 2: unlocked user_lock. thread 2: locked user_lock. Fixes the test in commit 83b5323261bb72313bffcf37476c1b8f0847c736 ("elf: Avoid deadlock between pthread_create and ctors [BZ #28357]"). Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
* nptl: Do not set signal mask on second setjmp return [BZ #28607]Florian Weimer2021-11-242-0/+46
| | | | | | | | | | | | __libc_signal_restore_set was in the wrong place: It also ran when setjmp returned the second time (after pthread_exit or pthread_cancel). This is observable with blocked pending signals during thread exit. Fixes commit b3cae39dcbfa2432b3f3aa28854d8ac57f0de1b8 ("nptl: Start new threads with all signals blocked [BZ #25098]"). Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* elf: Avoid deadlock between pthread_create and ctors [BZ #28357]Szabolcs Nagy2021-10-043-2/+168
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The fix for bug 19329 caused a regression such that pthread_create can deadlock when concurrent ctors from dlopen are waiting for it to finish. Use a new GL(dl_load_tls_lock) in pthread_create that is not taken around ctors in dlopen. The new lock is also used in __tls_get_addr instead of GL(dl_load_lock). The new lock is held in _dl_open_worker and _dl_close_worker around most of the logic before/after the init/fini routines. When init/fini routines are running then TLS is in a consistent, usable state. In _dl_open_worker the new lock requires catching and reraising dlopen failures that happen in the critical section. The new lock is reinitialized in a fork child, to keep the existing behaviour and it is kept recursive in case malloc interposition or TLS access from signal handlers can retake it. It is not obvious if this is necessary or helps, but avoids changing the preexisting behaviour. The new lock may be more appropriate for dl_iterate_phdr too than GL(dl_load_write_lock), since TLS state of an incompletely loaded module may be accessed. If the new lock can replace the old one, that can be a separate change. Fixes bug 28357. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: pthread_kill must send signals to a specific thread [BZ #28407]Florian Weimer2021-10-012-0/+93
| | | | | | | | | | | | | | | | | The choice between the kill vs tgkill system calls is not just about the TID reuse race, but also about whether the signal is sent to the whole process (and any thread in it) or to a specific thread. This was caught by the openposix test suite: LTP: openposix test suite - FAIL: SIGUSR1 is member of new thread pendingset. <https://gitlab.com/cki-project/kernel-tests/-/issues/764> Fixes commit 526c3cf11ee9367344b6b15d669e4c3cb461a2be ("nptl: Fix race between pthread_kill and thread exit (bug 12889)"). Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Add CLOCK_MONOTONIC support for PI mutexesAdhemerval Zanella2021-10-012-15/+28
| | | | | | | | | | | | | | | Linux added FUTEX_LOCK_PI2 to support clock selection (commit bf22a6976897977b0a3f1aeba6823c959fc4fdae). With the new flag we can now proper support CLOCK_MONOTONIC for pthread_mutex_clocklock with Priority Inheritance. If kernel does not support, EINVAL is returned instead. The difference is the futex operation will be issued and the kernel will advertise the missing support (instead of hard-code error return). Checked on x86_64-linux-gnu and i686-linux-gnu on Linux 5.14, 5.11, and 4.15.
* pthread/tst-cancel28: Fix barrier re-init race conditionStafford Horne2021-09-281-1/+0
| | | | | | | | | | | | | | | | | | | | When running this test on the OpenRISC port I am working on this test fails with a timeout. The test passes when being straced or debugged. Looking at the code there seems to be a race condition in that: 1 main thread: calls xpthread_cancel 2 sub thread : receives cancel signal 3 sub thread : cleanup routine waits on barrier 4 main thread: re-inits barrier 5 main thread: waits on barrier After getting to 5 the main thread and sub thread wait forever as the 2 barriers are no longer the same. Removing the barrier re-init seems to fix this issue. Also, the barrier does not need to be reinitialized as that is done by default. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Avoid setxid deadlock with blocked signals in thread exit [BZ #28361]Florian Weimer2021-09-232-0/+62
| | | | | | | | | | | | | | | | | | | | | | As part of the fix for bug 12889, signals are blocked during thread exit, so that application code cannot run on the thread that is about to exit. This would cause problems if the application expected signals to be delivered after the signal handler revealed the thread to still exist, despite pthread_kill can no longer be used to send signals to it. However, glibc internally uses the SIGSETXID signal in a way that is incompatible with signal blocking, due to the way the setxid handshake delays thread exit until the setxid operation has completed. With a blocked SIGSETXID, the handshake can never complete, causing a deadlock. As a band-aid, restore the previous handshake protocol by not blocking SIGSETXID during thread exit. The new test sysdeps/pthread/tst-pthread-setuid-loop.c is based on a downstream test by Martin Osvald. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* nptl: pthread_kill needs to return ESRCH for old programs (bug 19193)Florian Weimer2021-09-201-2/+19
| | | | | | The fix for bug 19193 breaks some old applications which appear to use pthread_kill to probe if a thread is still running, something that is not supported by POSIX.
* nptl: Fix race between pthread_kill and thread exit (bug 12889)Florian Weimer2021-09-133-0/+212
| | | | | | | | | | | A new thread exit lock and flag are introduced. They are used to detect that the thread is about to exit or has exited in __pthread_kill_internal, and the signal is not sent in this case. The test sysdeps/pthread/tst-pthread_cancel-select-loop.c is derived from a downstream test originally written by Marek Polacek. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: pthread_kill, pthread_cancel should not fail after exit (bug 19193)Florian Weimer2021-09-134-90/+95
| | | | | | | | | | | | | | This closes one remaining race condition related to bug 12889: if the thread already exited on the kernel side, returning ESRCH is not correct because that error is reserved for the thread IDs (pthread_t values) whose lifetime has ended. In case of a kernel-side exit and a valid thread ID, no signal needs to be sent and cancellation does not have an effect, so just return 0. sysdeps/pthread/tst-kill4.c triggers undefined behavior and is removed with this commit. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Remove "Contributed by" linesSiddhesh Poyarekar2021-09-03154-154/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | We stopped adding "Contributed by" or similar lines in sources in 2012 in favour of git logs and keeping the Contributors section of the glibc manual up to date. Removing these lines makes the license header a bit more consistent across files and also removes the possibility of error in attribution when license blocks or files are copied across since the contributed-by lines don't actually reflect reality in those cases. Move all "Contributed by" and similar lines (Written by, Test by, etc.) into a new file CONTRIBUTED-BY to retain record of these contributions. These contributors are also mentioned in manual/contrib.texi, so we just maintain this additional record as a courtesy to the earlier developers. The following scripts were used to filter a list of files to edit in place and to clean up the CONTRIBUTED-BY file respectively. These were not added to the glibc sources because they're not expected to be of any use in future given that this is a one time task: https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02 Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Move malloc hooks into a compat DSOSiddhesh Poyarekar2021-07-221-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | Remove all malloc hook uses from core malloc functions and move it into a new library libc_malloc_debug.so. With this, the hooks now no longer have any effect on the core library. libc_malloc_debug.so is a malloc interposer that needs to be preloaded to get hooks functionality back so that the debugging features that depend on the hooks, i.e. malloc-check, mcheck and mtrace work again. Without the preloaded DSO these debugging features will be nops. These features will be ported away from hooks in subsequent patches. Similarly, legacy applications that need hooks functionality need to preload libc_malloc_debug.so. The symbols exported by libc_malloc_debug.so are maintained at exactly the same version as libc.so. Finally, static binaries will no longer be able to use malloc debugging features since they cannot preload the debugging DSO. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* Linux: Cleanups after librt moveFlorian Weimer2021-06-281-11/+3
| | | | | | | | | | | | librt.so is no longer installed for PTHREAD_IN_LIBC, and tests are not linked against it. $(librt) is introduced globally for shared tests that need to be linked for both PTHREAD_IN_LIBC and !PTHREAD_IN_LIBC. GLIBC_PRIVATE symbols that were needed during the transition are removed again. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Consolidate pthread_atforkAdhemerval Zanella2021-06-243-1/+89
| | | | | | | | | | | | The pthread_atfork is similar between Linux and Hurd, only the compat version bits differs. The generic version is place at sysdeps/pthread with a common name. It also fixes an issue with Hurd license, where the static-only object did not use LGPL + exception. Checked on x86_64-linux-gnu, i686-linux-gnu, and with a build for i686-gnu.
* rt: Move generic implementation from sysdeps/pthread to rtFlorian Weimer2021-06-2220-2968/+0
| | | | | | | | | | | | | | | | | | The pthread-based implementation is the generic one. Replacing the stubs makes it clear that they do not have to be adjusted for the libpthread move. Result of: git mv -f sysdeps/pthread/aio_misc.h sysdeps/generic/ git mv sysdeps/pthread/timer_routines.c sysdeps/htl/ git mv -f sysdeps/pthread/{aio,lio,timer}_*.c rt/ Followed by manual adjustment of the #include paths in sysdeps/unix/sysv/linux/wordsize-64, and a move of the version definitions formerly in sysdeps/pthread/Versions. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* y2038: Add test coverageAdhemerval Zanella2021-06-159-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is enabled through a new rule, tests-y2038, which is built only when the ABI supports the comapt 64-bit time_t (defined by the header time64-compat.h, which also enables the creation of the symbol Version for Linux). It means the tests are not built for ABI which already provide default 64-bit time_t. The new rule already adds the required LFS and 64-bit time_t compiler flags. The current coverage is: * libc: - adjtime tst-adjtime-time64 - adjtimex tst-adjtimex-time64 - clock_adjtime tst-clock_adjtime-time64 - clock_getres tst-clock-time64, tst-cpuclock1-time64 - clock_gettime tst-clock-time64, tst-clock2-time64, tst-cpuclock1-time64 - clock_nanosleep tst-clock_nanosleep-time64, tst-cpuclock1-time64 - clock_settime tst-clock2-time64 - cnd_timedwait tst-cnd-timedwait-time64 - ctime tst-ctime-time64 - ctime_r tst-ctime-time64 - difftime tst-difftime-time64 - fstat tst-stat-time64 - fstatat tst-stat-time64 - futimens tst-futimens-time64 - futimes tst-futimes-time64 - futimesat tst-futimesat-time64 - fts_* tst-fts-time64 - getitimer tst-itimer-timer64 - getrusage - gettimeofday tst-clock_nanosleep-time64 - glob / globfree tst-gnuglob64-time64 - gmtime tst-gmtime-time64 - gmtime_r tst-gmtime-time64 - lstat tst-stat-time64 - localtime tst-y2039-time64 - localtime_t tst-y2039-time64 - lutimes tst-lutimes-time64 - mktime tst-mktime4-time64 - mq_timedreceive tst-mqueue{1248}-time64 - mq_timedsend tst-mqueue{1248}-time64 - msgctl test-sysvmsg-time64 - mtx_timedlock tst-mtx-timedlock-time64 - nanosleep tst-cpuclock{12}-time64, tst-mqueue8-time64, tst-clock-time64 - nftw / ftw ftwtest-time64 - ntp_adjtime tst-ntp_adjtime-time64 - ntp_gettime tst-ntp_gettime-time64 - ntp_gettimex tst-ntp_gettimex-time64 - ppoll tst-ppoll-time64 - pselect tst-pselect-time64 - pthread_clockjoin_np tst-join14-time64 - pthread_cond_clockwait tst-cond11-time64 - pthread_cond_timedwait tst-abstime-time64 - pthread_mutex_clocklock tst-abstime-time64 - pthread_mutex_timedlock tst-abstime-time64 - pthread_rwlock_clockrdlock tst-abstime-time64, tst-rwlock14-time64 - pthread_rwlock_clockwrlock tst-abstime-time64, tst-rwlock14-time64 - pthread_rwlock_timedrdlock tst-abstime-time64, tst-rwlock14-time64 - pthread_rwlock_timedwrlock tst-abstime-time64, tst-rwlock14-time64 - pthread_timedjoin_np tst-join14-time64 - recvmmsg tst-cancel4_2-time64 - sched_rr_get_interval tst-sched_rr_get_interval-time64 - select tst-select-time64 - sem_clockwait tst-sem5-time64 - sem_timedwait tst-sem5-time64 - semctl test-sysvsem-time64 - semtimedop test-sysvsem-time64 - setitimer tst-mqueue2-time64, tst-itimer-timer64 - settimeofday tst-settimeofday-time64 - shmctl test-sysvshm-time64 - sigtimedwait tst-sigtimedwait-time64 - stat tst-stat-time64 - thrd_sleep tst-thrd-sleep-time64 - time tst-mqueue{1248}-time64 - timegm tst-timegm-time64 - timer_gettime tst-timer4-time64 - timer_settime tst-timer4-time64 - timerfd_gettime tst-timerfd-time64 - timerfd_settime tst-timerfd-time64 - timespec_get tst-timespec_get-time64 - timespec_getres tst-timespec_getres-time64 - utime tst-utime-time64 - utimensat tst-utimensat-time64 - utimes tst-utimes-time64 - wait3 tst-wait3-time64 - wait4 tst-wait4-time64 * librt: - aio_suspend tst-aio6-time64 - mq_timedreceive tst-mqueue{1248}-time64 - mq_timedsend tst-mqueue{1248}-time64 - timer_gettime tst-timer4-time64 - timer_settime tst-timer4-time64 * libanl: - gai_suspend Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* y2038: Add support for 64-bit time on legacy ABIsAdhemerval Zanella2021-06-152-0/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A new build flag, _TIME_BITS, enables the usage of the newer 64-bit time symbols for legacy ABI (where 32-bit time_t is default). The 64 bit time support is only enabled if LFS (_FILE_OFFSET_BITS=64) is also used. Different than LFS support, the y2038 symbols are added only for the required ABIs (armhf, csky, hppa, i386, m68k, microblaze, mips32, mips64-n32, nios2, powerpc32, sparc32, s390-32, and sh). The ABIs with 64-bit time support are unchanged, both for symbol and types redirection. On Linux the full 64-bit time support requires a minimum of kernel version v5.1. Otherwise, the 32-bit fallbacks are used and might results in error with overflow return code (EOVERFLOW). The i686-gnu does not yet support 64-bit time. This patch exports following rediretions to support 64-bit time: * libc: adjtime adjtimex clock_adjtime clock_getres clock_gettime clock_nanosleep clock_settime cnd_timedwait ctime ctime_r difftime fstat fstatat futimens futimes futimesat getitimer getrusage gettimeofday gmtime gmtime_r localtime localtime_r lstat_time lutimes mktime msgctl mtx_timedlock nanosleep nanosleep ntp_gettime ntp_gettimex ppoll pselec pselect pthread_clockjoin_np pthread_cond_clockwait pthread_cond_timedwait pthread_mutex_clocklock pthread_mutex_timedlock pthread_rwlock_clockrdlock pthread_rwlock_clockwrlock pthread_rwlock_timedrdlock pthread_rwlock_timedwrlock pthread_timedjoin_np recvmmsg sched_rr_get_interval select sem_clockwait semctl semtimedop sem_timedwait setitimer settimeofday shmctl sigtimedwait stat thrd_sleep time timegm timerfd_gettime timerfd_settime timespec_get utime utimensat utimes utimes wait3 wait4 * librt: aio_suspend mq_timedreceive mq_timedsend timer_gettime timer_settime * libanl: gai_suspend Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* dlfcn: Cleanups after -ldl is no longer requiredFlorian Weimer2021-06-031-3/+3
| | | | | | | | | | | | This commit removes the ELF constructor and internal variables from dlfcn/dlfcn.c. The file now serves the same purpose as nptl/libpthread-compat.c, so it is renamed to dlfcn/libdl-compat.c. The use of libdl-shared-only-routines ensures that libdl.a is empty. This commit adjusts the test suite not to use $(libdl). The libdl.so symbolic link is no longer installed. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Move pthread_create, thrd_create into libcFlorian Weimer2021-05-212-3/+11
| | | | | | | | | | | | | | | | | | | 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>
* nptl: Move thread join functions into libcFlorian Weimer2021-05-112-2/+12
| | | | | | | | | | | 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>
* nptl: Move pthread_detach, thrd_detach into libcFlorian Weimer2021-05-112-2/+12
| | | | | | The symbols were moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* linux: Move funlockfile/_IO_funlockfile into libcAdhemerval Zanella2021-05-101-30/+0
| | | | | | | | | | The nptl version is used as default, since now with symbol always present the single-thread optimization is tricky. Hurd is not change, it is used it own lock scheme (which call _cthreads_funlockfile). Checked on x86_64-linux-gnu.
* linux: Move ftrylockfile/_IO_ftrylockfile into libcAdhemerval Zanella2021-05-101-31/+0
| | | | | | | | | | The nptl version is used as default, since now with symbol always present the single-thread optimization is tricky. Hurd is not change, it is used it own lock scheme (which call _cthreads_ftrylockfile). Checked on x86_64-linux-gnu.
* linux: Move flockfile/_IO_flockfile into libcAdhemerval Zanella2021-05-101-31/+0
| | | | | | | | | | The nptl version is used as default, since now with symbol always present the single-thread optimization is tricky. Hurd is not change, it is used it own lock scheme (which call _cthreads_flockfile). Checked on x86_64-linux-gnu.
* nptl: Move sem_unlink into libcFlorian Weimer2021-05-051-2/+15
| | | | | | | | | | | | 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>
* nptl: Move sem_close, sem_open into libcFlorian Weimer2021-05-053-19/+41
| | | | | | | | | | | 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>
* nptl: Move tss_set into libcFlorian Weimer2021-05-032-3/+12
| | | | | | | | | | 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>
* nptl: Move tss_get into libcFlorian Weimer2021-05-032-2/+12
| | | | | | | | | | 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>
* nptl: Move tss_delete into libcFlorian Weimer2021-05-032-2/+12
| | | | | | | | | | 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>
* nptl: Move tss_create into libcFlorian Weimer2021-05-032-2/+12
| | | | | | | | | | | 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>
* nptl: Move thrd_exit into libcFlorian Weimer2021-05-032-2/+12
| | | | | | | | | | 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>
* nptl: Move mtx_unlock into libcFlorian Weimer2021-05-032-2/+11
| | | | | | | | | | 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>
* nptl: Move mtx_trylock into libcFlorian Weimer2021-05-032-2/+12
| | | | | | | | | | | 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>
* nptl: Move mtx_timedlock into libcFlorian Weimer2021-05-031-1/+1
| | | | | | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. The __pthread_mutex_timedlock@@GLIBC_PRIVATE export is no longer needed, so it is removed with this commit. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Move mtx_lock into libcFlorian Weimer2021-05-032-2/+12
| | | | | | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. __pthread_mutex_lock@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>
* nptl: Move mtx_init into libcFlorian Weimer2021-05-032-2/+12
| | | | | | | | | | | | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. The calls to __pthread_mutex_init, __pthread_mutexattr_init, __pthread_mutexattr_settype are now private and no longer need to be exported. This allows the removal of the newly added GLIBC_2.34 symbol versions for those functions. Also clean up some weak declarations in <libc-lockP.h> for these functions. They are not needed and potentially incorrect for static linking of mtx_init. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Move mtx_destroy into libcFlorian Weimer2021-05-032-2/+12
| | | | | | | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. The __pthread_mutex_destroy@@GLIBC_2.34 symbol is no longer neded because this commit makes __pthread_mutex_destroy@GLIBC_2.0 a compatibility symbol, so remove the new symbol version. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Move cnd_wait into libcFlorian Weimer2021-05-032-2/+11
| | | | | | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. The __pthread_cond_wait@@GLIBC_PRIVATE symbol is no longer neded, so remove that as well. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Move cnd_timedwait into libcFlorian Weimer2021-05-031-1/+2
| | | | | | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. The __pthread_cond_timedwait@@GLIBC_PRIVATE symbol is no longer neded, so remove that as well. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Move cnd_signal into libcFlorian Weimer2021-05-032-2/+12
| | | | | | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. The __pthread_cond_signal@@GLIBC_PRIVATE symbol is no longer neded, so remove that as well. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Move cnd_init into libcFlorian Weimer2021-05-032-2/+12
| | | | | | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. The __pthread_cond_init@@GLIBC_PRIVATE symbol is no longer neded, so remove that as well. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Move cnd_destroy into libcFlorian Weimer2021-05-032-2/+12
| | | | | | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. The __pthread_cond_destroy@@GLIBC_PRIVATE symbol is no longer neded, so remove that as well. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Move cnd_broadcast into libcFlorian Weimer2021-05-032-2/+11
| | | | | | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. The __pthread_cond_broadcast@@GLIBC_PRIVATE symbol is no longer neded, so remove that as well. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Move call_once into libcFlorian Weimer2021-05-032-3/+11
| | | | | | | | | | | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. This change also turns __pthread_once into a compatibility symbol because after the call_once move, an internal call to __pthread_once can be used. This an adjustment to __libc_once: Outside libc (e.g., in nscd), it has to call pthread_once. With __pthread_once as a compatibility symbol, it is no longer to add a new GLIBC_2.34 version after the move from libpthread, and this commit removes the new __pthread_once@@GLIBC_2.34 version. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* Add pthread-in-libc, libpthread-routines-var, librt-routines-varFlorian Weimer2021-05-031-0/+3
| | | | | | | | These make variables can be used to add routines to different libraries for the Hurd and Linux builds. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-01 14:07:15 +0000