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* Linux: Move aio_init from librt into libcFlorian Weimer2021-06-251-0/+1
| | | | | | | | | This commit also moves the aio_misc and aio_sigquue helper, so GLIBC_PRIVATE exports need to be added. The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Consolidate pthread_atforkAdhemerval Zanella2021-06-243-84/+0
| | | | | | | | | | | | 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.
* nptl: Use SA_RESTART for SIGCANCEL handlerAdhemerval Zanella2021-06-231-1/+5
| | | | | | | | | | | | | | | | The usage of signals to implementation pthread cancellation is an implementation detail and should not be visible through cancellation entrypoints. However now that pthread_cancel always send the SIGCANCEL, some entrypoint might be interruptable and return EINTR to the caller (for instance on sem_wait). Using SA_RESTART hides this, since the cancellation handler should either act uppon cancellation (if asynchronous cancellation is enable) or ignore the cancellation internal signal. Checked on x86_64-linux-gnu and i686-linux-gnu.
* Remove unsused symbols from nptl/VersionsAndreas Schwab2021-06-221-6/+0
| | | | | | The (private) symbols __pthread_clock_gettime, __pthread_clock_settime and __pthread_initialize_minimal haven't been defined by libpthread for some time.
* linux: Only use 64-bit syscall if required for internal futexAdhemerval Zanella2021-06-221-18/+34
| | | | | | | | | | | For !__ASSUME_TIME64_SYSCALLS there is no need to issue a 64-bit syscall if the provided timeout fits in a 32-bit one. The 64-bit usage should be rare since the timeout is a relative one. Checked on i686-linux-gnu on a 4.15 kernel and on a 5.11 kernel (with and without --enable-kernel=5.1) and on x86_64-linux-gnu. Reviewed-by: Lukasz Majewski <lukma@denx.de>
* nptl: Move pthreadP.h into sysdeps directoryFlorian Weimer2021-06-221-739/+0
| | | | | | | | This mirrors the situation on Hurd. These directories are on the include search part, so #include <pthreadP.h> works after this change on both Hurd and nptl. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Export _pthread_cleanup_push, _pthread_cleanup_pop againFlorian Weimer2021-06-152-0/+6
| | | | | | | | | | 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>
* y2038: Add test coverageAdhemerval Zanella2021-06-152-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Zanella2021-06-1510-24/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* nptl: Avoid async cancellation to wrongly update __nptl_nthreads (BZ #19366)Adhemerval Zanella2021-06-091-7/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The testcase provided on BZ#19366 may update __nptl_nthreads in a wrong order, triggering an early process exit because the thread decrement the value twice. The issue is once the thread exits without acting on cancellation, it decreaments '__nptl_nthreads' and then atomically set 'cancelhandling' with EXITING_BIT (thus preventing further cancellation handler to act). The issue happens if a SIGCANCEL is received between checking '__ntpl_nthreads' and setting EXITING_BIT. To avoid it, the '__nptl_nthreads' decrement is moved after EXITING_BIT. It does fully follow the POSIX XSH 2.9.5 Thread Cancellation under the heading Thread Cancellation Cleanup Handlers that states that when a cancellation request is acted upon, or when a thread calls pthread_exit(), the thread first disables cancellation by setting its cancelability state to PTHREAD_CANCEL_DISABLE and its cancelability type to PTHREAD_CANCEL_DEFERRED. The issue is '__pthread_enable_asynccancel' explicit enabled assynchrnous cancellation, so an interrupted syscall within the cancellation cleanup handlers might see an invalid cancelling type (a possible fix might be possible with my proposed solution to BZ#12683). Trying to come up with a test is quite hard since it requires to mimic the timing issue described below, however I see that the bug report reproducer does not early exit anymore. Checked on x86_64-linux-gnu.
* nptl: Use pthread_kill on pthread_cancelAdhemerval Zanella2021-06-093-11/+15
| | | | | | | | | | It consolidates the tgkill call and it is the first step of making pthread_cancel async-signal-safe. It also fix a possible issue where the 'struct pthread' tid is not read atomically, which might send an invalid cancellation signal (similar to what db988e50a87f613cb6b9e98a2fc66a4848bc3546 fixed for pthread_join). Checked on x86_64-linux-gnu and aarch64-linux-gnu.
* nptl: Implement raise in terms of pthread_killAdhemerval Zanella2021-06-094-15/+36
| | | | | | | | | | | | | | | | 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.
* nptl: Move cancel type out of cancelhandlingAdhemerval Zanella2021-06-097-170/+34
| | | | | | | | | | | | | | Now that the thread cancellation type is not accessed concurrently anymore, it is possible to move it out the cancelhandling. By removing the cancel state out of the internal thread cancel handling state there is no need to check if cancelled bit was set in CAS operation. It allows simplifing the cancellation wrappers and the CANCEL_CANCELED_AND_ASYNCHRONOUS is removed. Checked on x86_64-linux-gnu and aarch64-linux-gnu.
* nptl: Move cancel state out of cancelhandlingAdhemerval Zanella2021-06-0911-60/+31
| | | | | | | | | | | | | | | Now that thread cancellation state is not accessed concurrently anymore, it is possible to move it out the 'cancelhandling'. The code is also simplified: CANCELLATION_P is replaced with a internal pthread_testcancel call and the CANCELSTATE_BIT{MASK} is removed. With this behavior pthread_setcancelstate does not require to act on cancellation if cancel type is asynchronous (is already handled either by pthread_setcanceltype or by the signal handler). Checked on x86_64-linux-gnu and aarch64-linux-gnu.
* nptl: Remove CANCELING_BITMASKAdhemerval Zanella2021-06-094-106/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | The CANCELING_BITMASK is used as an optimization to avoid sending the signal when pthread_cancel is called in a concurrent manner. This requires then to put both the cancellation state and type on a shared state (cancelhandling), since 'pthread_cancel' checks whether cancellation is enabled and asynchrnous to either cancel itself of sending the signal. It also requires handle the CANCELING_BITMASK on __pthread_disable_asynccancel, however this incurs in the same issues described on BZ#12683: the cancellation is acted upon even *after* syscall returns with user visible side-effects. This patch removes this optimization and simplifies the pthread cancellation implementation: pthread_cancel now first checks if cancellation is already pending and if not always, sends a signal if the target is not itself. The SIGCANCEL handler is also simpified since there is not need to setup a CAS loop. It also allows to move both the cancellation state and mode out of 'cancelhadling' (it is done in subsequent patches). Checked on x86_64-linux-gnu and aarch64-linux-gnu.
* nptl: Install cancellation handler on pthread_cancelAdhemerval Zanella2021-06-094-45/+28
| | | | | | | | 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.
* nptl: Deallocate the thread stack on setup failure (BZ #19511)Adhemerval Zanella2021-06-093-88/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To setup either the thread scheduling parameters or affinity, pthread_create enforce synchronization on created thread to wait until its parent either release PD ownership or send a cancellation signal if a failure occurs. However, cancelling the thread does not deallocate the newly created stack since cancellation expects that a pthread_join to deallocate any allocated thread resouces (threads stack or TLS). This patch changes on how the thread resource is deallocate in case of failure to be synchronous, where the creating thread will signal the created thread to exit early so it could be joined. The creating thread will be reponsible for the resource cleanup before returning to the caller. To signal the creating thread that a failure has occured, an unused 'struct pthread' member, parent_cancelhandling_unsed, now indicates whether the setup has failed so creating thread can proper exit. This strategy also simplifies by not using thread cancellation and thus not running libgcc_so load in the signal handler (which is avoided in thread cancellation since 'pthread_cancel' is the one responsible to dlopen libgcc_s). Another advantage is since the early exit is move to first step at thread creation, the signal mask is not already set and thus it can not act on change ID setxid handler. Checked on x86_64-linux-gnu and aarch64-linux-gnu.
* nptl: Remove exit-thread.hAdhemerval Zanella2021-06-041-2/+2
| | | | | No function change. The code is used only for Linux, besides being included in generic code.
* dlfcn: Cleanups after -ldl is no longer requiredFlorian Weimer2021-06-031-7/+0
| | | | | | | | | | | | 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>
* Add missing symbols to Version filesFlorian Weimer2021-06-021-0/+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>
* nptl: Add pthread_attr_setaffinity_np failure testAdhemerval Zanella2021-05-272-0/+60
| | | | | | | | It checks whether an invalid affinity mask does return an error, similar to what sysdeps/pthread/tst-bad-schedattr.c does for pthread_attr_setschedparam. Checked on x86_64-linux-gnu.
* nptl: Move createthread to pthread_createAdhemerval Zanella2021-05-272-166/+115
| | | | | | | | The 'create_thread' function is moved to pthread_create.c. It removes the START_THREAD_DEFN and START_THREAD_SELF macros and make the lock usage more clear (no need to cross-reference multiple files). No functional change.
* nptl: Move Linux createthread to nptlAdhemerval Zanella2021-05-271-8/+116
| | | | | | git mv -f sysdeps/unix/sysv/linux/createthread.c nptl/createthread.c No functional change.
* nptl: Install SIGSETXID handler with SA_ONSTACK [BZ #27914]Florian Weimer2021-05-271-2/+5
| | | | | | | | | | | | | | The signal is sent to all threads, some of which may have switched to very small stacks. If they have also installed an alternate signal stack, SA_ONSTACK makes this work. The Go runtime needs this: runtime: C.setuid/C.setgid smashes Go stack <https://github.com/golang/go/issues/9400> Doing this for SIGCANCEL is less obviously beneficial and needs further testing. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Linux: Remove remaining references to $(shared-thread-library)Florian Weimer2021-05-251-14/+7
| | | | | | | Since the variable expands to nothing under Linux, it is no longer necessary to clutter the makefiles with it. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Do not install libpthread.so and do not link tests with itFlorian Weimer2021-05-251-24/+5
| | | | | | Keep installing libpthread.a, so that -lpthread works. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Remove remaining code from libpthreadFlorian Weimer2021-05-217-195/+11
| | | | | | | | | 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>
* nptl: Move pthread_create, thrd_create into libcFlorian Weimer2021-05-216-26/+38
| | | | | | | | | | | | | | | | | | | 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 semi-public __pthread_get_minstack symbol into libcFlorian Weimer2021-05-215-20/+23
| | | | | | | | | 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>
* nptl: Eliminate the __static_tls_size, __static_tls_align_m1 variablesFlorian Weimer2021-05-214-59/+27
| | | | | | | | | | | | | | | | | | | Use the __nptl_tls_static_size_for_stack inline function instead, and the GLRO (dl_tls_static_align) value directly. The computation of GLRO (dl_tls_static_align) in _dl_determine_tlsoffset ensures that the alignment is at least TLS_TCB_ALIGN, which at least STACK_ALIGN (see allocate_stack). Therefore, the additional rounding-up step is removed. ALso move the initialization of the default stack size from __pthread_initialize_minimal_internal to __pthread_early_init. This introduces an extra system call during single-threaded startup, but this simplifies the initialization sequence. No locking is needed around the writes to __default_pthread_attr because the process is single-threaded at this point. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Perform signal initialization upon pthread_createFlorian Weimer2021-05-215-88/+131
| | | | | | | | | | | | | 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>
* nptl: Remove unused __libc_pthread_init functionFlorian Weimer2021-05-212-36/+0
| | | | | | Fixes commit 732139dabeda7ecce0d56200bc176251e759ccde ("Linux: Move __reclaim_stacks into the fork implementation in libc").
* nptl: Add missing __pthread_cond_wait alias in static buildsFlorian Weimer2021-05-191-0/+3
| | | | | | | Fixes commit cf3fff1c195f859ba949a7ad86d4fca70bd99740 ("nptl: Move cnd_wait into libc"). Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
* nptl: Move pthread_sigqueue into libcFlorian Weimer2021-05-174-5/+19
| | | | | | | | 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>
* nptl: Move pthread_setschedprio into libcFlorian Weimer2021-05-174-6/+19
| | | | | | | | 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>
* nptl: Move pthread_setname_np into libcFlorian Weimer2021-05-174-4/+21
| | | | | | | | | 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>
* nptl: Move pthread_setaffinity_np into libcFlorian Weimer2021-05-174-6/+16
| | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Move pthread_getname_np into libcFlorian Weimer2021-05-173-6/+13
| | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Move pthread_getcpuclockid into libcFlorian Weimer2021-05-174-7/+23
| | | | | | | | | | | | | 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>
* nptl: Replace pthread_getcpuclockid with Linux implementationFlorian Weimer2021-05-171-18/+6
| | | | Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Move pthread_getattr_default_np into libcFlorian Weimer2021-05-175-6/+26
| | | | | | | | | | | 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>
* nptl: Move __nptl_create_event, __nptl_death_event into libcFlorian Weimer2021-05-174-5/+7
| | | | | | | | 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>
* nptl: Move __nptl_initial_report_events into ld.so/startup codeFlorian Weimer2021-05-173-12/+6
| | | | | | | | | | | | 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>
* nptl: Fix tst-pthread-gdb-attach for ptrace_scope equal 1Adhemerval Zanella2021-05-141-17/+39
| | | | | | | | | This is similar to the fix for elf/tst-pldd (2f9046fb059e94fe25): it checks ptrace_scope value (values higher than 2 are too restrictive to allow the test to run) and it rearranges the spawned processes to make the target process the gdb child. Checked on x86_64-linux-gnu with ptrace_scope set to 1.
* nptl: Move pthread_getconcurrency, pthread_setconcurrency into libcFlorian Weimer2021-05-114-8/+24
| | | | | | | | 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>
* nptl: Move pthread_cancel into libcFlorian Weimer2021-05-114-4/+8
| | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Move __pthread_register_cancel_defer, ↵Florian Weimer2021-05-113-6/+21
| | | | | | | | __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>
* nptl: Move __pthread_register_cancel, __pthread_unregister_cancel to libcFlorian Weimer2021-05-114-19/+26
| | | | | | | | | 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>
* nptl: Move pthread_attr_setstacksize into libcFlorian Weimer2021-05-113-11/+19
| | | | | | | | | | 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>
* nptl: Move pthread_attr_setstackaddr into libcFlorian Weimer2021-05-113-4/+10
| | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-17 04:36:06 +0000