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2020-06-28hurd: fix usleep(ULONG_MAX)Samuel Thibault1-1/+5
* sysdeps/mach/usleep.c (usleep): Clamp timeout when rouding up.
2020-06-28hurd: Make fcntl(F_SETLKW*) cancellation pointsSamuel Thibault4-8/+44
and add _nocancel variant. * sysdeps/mach/hurd/Makefile [io] (sysdep_routines): Add fcntl_nocancel. * sysdeps/mach/hurd/fcntl.c [NOCANCEL]: Include <not-cancel.h>. [!NOCANCEL]: Include <sysdep-cancel.h>. (__libc_fcntl) [!NOCANCEL]: Surround __file_record_lock call with enabling async cancel, and use HURD_FD_PORT_USE_CANCEL instead of HURD_FD_PORT_USE. * sysdeps/mach/hurd/fcntl_nocancel.c: New file, defines __fcntl_nocancel by including fcntl.c. * sysdeps/mach/hurd/not-cancel.h (__fcntl64_nocancel): Replace macro with __fcntl_nocancel declaration with hidden proto, and make __fcntl64_nocancel call __fcntl_nocancel.
2020-06-28hurd: make wait4 a cancellation pointSamuel Thibault4-6/+70
and add _nocancel variant. * sysdeps/mach/hurd/Makefile [io] (sysdep_routines): Add wait4_nocancel. * sysdeps/mach/hurd/wait4.c: Include <sysdep-cancel.h> (__wait4): Surround __proc_wait with enabling async cancel, and use __USEPORT_CANCEL instead of __USEPORT. * sysdeps/mach/hurd/wait4_nocancel.c: New file, contains previous implementation of __wait4. * sysdeps/mach/hurd/not-cancel.h (__waitpid_nocancel): Replace macro with __wait4_nocancel declaration with hidden proto, and make __waitpid_nocancel call __wait4_nocancel.
2020-06-28hurd: make close a cancellation pointSamuel Thibault7-6/+50
and add _nocancel variant. * sysdeps/mach/hurd/Makefile [io] (sysdep_routines): Add close_nocancel. * sysdeps/mach/hurd/Versions (libc.GLIBC_PRIVATE, ld.GLIBC_PRIVATE): Add __close_nocancel. * sysdeps/mach/hurd/i386/localplt.data (__close_nocancel): Allow PLT. * sysdeps/mach/hurd/close.c: Include <sysdep-cancel.h> (__libc_close): Surround _hurd_fd_close with enabling async cancel. * sysdeps/mach/hurd/close_nocancel.c: New file. * sysdeps/mach/hurd/not-cancel.h (__close_nocancel): Replace macro with declaration with hidden proto.
2020-06-28hurd: make open and openat cancellation pointsSamuel Thibault9-10/+138
and add _nocancel variants. * sysdeps/mach/hurd/Makefile [io] (sysdep_routines): Add open_nocancel openat_nocancel. * sysdeps/mach/hurd/Versions (libc.GLIBC_PRIVATE, ld.GLIBC_PRIVATE): Add __open_nocancel. * sysdeps/mach/hurd/dl-sysdep.c (__open_nocancel): Add alias, check it is not hidden. * sysdeps/mach/hurd/i386/localplt.data (__open_nocancel): Allow PLT. * sysdeps/mach/hurd/not-cancel.h (__open_nocancel, __openat_nocancel: Replace macros with declarations with hidden proto. (__open64_nocancel, __openat64_nocancel): Call __open_nocancel and __openat_nocancel instead of __open64 and __openat64. * sysdeps/mach/hurd/open.c: Include <sysdep-cancel.h> (__libc_open): Surround __file_name_lookup with enabling async cancel. * sysdeps/mach/hurd/openat.c: Likewise. * sysdeps/mach/hurd/open_nocancel.c, sysdeps/mach/hurd/openat_nocancel.c: New files.
2020-06-28hurd: clean fd and port on thread cancelSamuel Thibault6-24/+24
HURD_*PORT_USE link fd and port with a stack-stored structure, so on thread cancel we need to cleanup this. * hurd/fd-cleanup.c: New file. * hurd/port-cleanup.c (_hurd_port_use_cleanup): New function. * hurd/Makefile (routines): Add fd-cleanup. * sysdeps/hurd/include/hurd.h (__USEPORT_CANCEL): New macro. * sysdeps/hurd/include/hurd/fd.h (_hurd_fd_port_use_data): New structure. (_hurd_fd_port_use_cleanup): New prototype. (HURD_DPORT_USE_CANCEL, HURD_FD_PORT_USE_CANCEL): New macros. * sysdeps/hurd/include/hurd/port.h (_hurd_port_use_data): New structure. (_hurd_port_use_cleanup): New prototype. (HURD_PORT_USE_CANCEL): New macro. * hurd/hurd/fd.h (HURD_FD_PORT_USE): Also refer to HURD_FD_PORT_USE_CANCEL. * hurd/hurd.h (__USEPORT): Also refer to __USEPORT_CANCEL. * hurd/hurd/port.h (HURD_PORT_USE): Also refer to HURD_PORT_USE_CANCEL. * hurd/fd-read.c (_hurd_fd_read): Call HURD_FD_PORT_USE_CANCEL instead of HURD_FD_PORT_USE. * hurd/fd-write.c (_hurd_fd_write): Likewise. * sysdeps/mach/hurd/send.c (__send): Call HURD_DPORT_USE_CANCEL instead of HURD_DPORT_USE. * sysdeps/mach/hurd/sendmsg.c (__libc_sendmsg): Likewise. * sysdeps/mach/hurd/sendto.c (__sendto): Likewise. * sysdeps/mach/hurd/recv.c (__recv): Likewise. * sysdeps/mach/hurd/recvfrom.c (__recvfrom): Likewise. * sysdeps/mach/hurd/recvmsg.c (__libc_recvmsg): Call __USEPORT_CANCEL instead of __USEPORT, and HURD_DPORT_USE_CANCEL instead of HURD_DPORT_USE.
2020-06-27htl: avoid cancelling threads inside critical sectionsSamuel Thibault1-0/+9
Like hurd_thread_cancel does. * sysdeps/mach/hurd/htl/pt-docancel.c: Include <hurd/signal.h> (__pthread_do_cancel): Lock target thread's critical_section_lock and ss lock around thread mangling.
2020-06-20hurd: Add mremapSamuel Thibault4-1/+185
* sysdeps/mach/hurd/mremap.c: New file. * sysdeps/mach/hurd/Makefile [misc] (sysdep_routines): Add mremap. * sysdeps/mach/hurd/Versions (libc.GLIBC_2.32): Add mremap. * sysdeps/mach/hurd/i386/libc.abilist: Add mremap.
2020-06-19New exp10f version without SVID compat wrapperAdhemerval Zanella1-0/+1
This patch changes the exp10f error handling semantics to only set errno according to POSIX rules. New symbol version is introduced at GLIBC_2.32. The old wrappers are kept for compat symbols. There are some outliers that need special handling: - ia64 provides an optimized implementation of exp10f that uses ia64 specific routines to set SVID compatibility. The new symbol version is aliased to the exp10f one. - m68k also provides an optimized implementation, and the new version uses it instead of the sysdeps/ieee754/flt32 one. - riscv and csky uses the generic template implementation that does not provide SVID support. For both cases a new exp10f version is not added, but rather the symbols version of the generic sysdeps/ieee754/flt32 is adjusted instead. Checked on aarch64-linux-gnu, x86_64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu.
2020-06-14hurd: Fix __writev_nocancel_nostatusSamuel Thibault3-2/+40
* sysdeps/mach/hurd/Makefile [subdir=misc] (sysdep_routines): Add writev_nocancel writev_nocancel_nostatus. * sysdeps/mach/hurd/not-cancel.h (__writev_nocancel_nostatus): Replace macro with function declaration (with hidden prototype in libc). (__writev_nocancel): New function declaration (with hidden prototype in libc). * sysdeps/mach/hurd/writev_nocancel_nostatus.c: New file. * sysdeps/posix/writev_nocancel.c: New file, includes writev.c to make a nocancel variant that calls __write_nocancel. * sysdeps/posix/writev.c (writev): Do not define alias if __writev is renamed.
2020-06-14hurd: Make send* cancellation pointsSamuel Thibault3-0/+10
* sysdeps/mach/hurd/send.c (__send): Make the __socket_send call a cancellation point. * sysdeps/mach/hurd/sendto.c (__sendto): Likewise. * sysdeps/mach/hurd/sendmsg.c (__libc_sendmsg): Likewise.
2020-06-14hurd: Make write and pwrite64 cancellation pointsSamuel Thibault9-19/+94
and add _nocancel variants. * sysdeps/mach/hurd/write.c (__libc_write): Call __write_nocancel surrounded by enabling async cancel, to replace implementation moved to... * sysdeps/mach/hurd/write_nocancel.c (__write_nocancel): ... here. * sysdeps/mach/hurd/pwrite64.c (__libc_pwrite64): Call __pwrite64_nocancel surrounded by enabling async cancel, to replace implementation moved to... * sysdeps/mach/hurd/pwrite64_nocancel.c (__pwrite64_nocancel): ... here. * sysdeps/mach/hurd/Makefile (sysdep_routines): Add write_nocancel and pwrite64_nocancel. * sysdeps/mach/hurd/not-cancel.h (__write_nocancel, __pwrite64_nocancel): Replace macros with prototypes with a hidden proto on libc. * sysdeps/mach/hurd/dl-sysdep.c (__write_nocancel): New alias, check that it is not hidden. * sysdeps/mach/hurd/Versions (libc.GLIBC_PRIVATE): Add __write_nocancel. (ld.GLIBC_PRIVATE): Add __write_nocancel. * sysdeps/mach/hurd/i386/localplt.data (__write_nocancel): Add reference.
2020-06-14hurd: Make recv* cancellation pointsSamuel Thibault3-12/+38
* sysdeps/mach/hurd/recv.c (__recv): Make the __socket_recv call cancellable. * sysdeps/mach/hurd/recvfrom.c (__recvfrom): Make the __socket_recv and __socket_whatis_address calls cancellable. * sysdeps/mach/hurd/recvmsg.c (__libc_recvmsg): Make the __socket_recv, __socket_whatis_address, __io_reauthenticate, and __auth_user_authenticate calls cancellable.
2020-06-08hurd: document that gcc&gdb look at the trampoline codeSamuel Thibault1-1/+5
* sysdeps/mach/hurd/i386/trampoline.c (rpc_wait_trampoline): Document which gcc and gdb files look at the code of the trampoline.
2020-06-07htl: Fix tls initialization for already-created threadsSamuel Thibault1-0/+3
* sysdeps/htl/pthreadP.h: Include <link.h> (__pthread_init_static_tls): New prototype. * htl/pt-alloc.c (__pthread_init_static_tls): New function. * sysdeps/mach/hurd/htl/pt-sysdep.c (_init_routine): Initialize tcb field of initial thread. Set GL(dl_init_static_tls) to &__pthread_init_static_tls.
2020-06-07hurd: Make read and pread64 cancellableSamuel Thibault10-21/+106
and add _nocancel variants. * sysdeps/mach/hurd/pread64.c (__libc_pread64): Call __pread64_nocancel surrounded by enabling async cancel, to replace implementation moved to... * sysdeps/mach/hurd/pread64_nocancel.c (__pread64_nocancel): ... here. * sysdeps/mach/hurd/read.c (__libc_read): Call __read_nocancel surrounded by enabling async cancel, to replace implementation moved to... * sysdeps/mach/hurd/read_nocancel.c (__read_nocancel): ... here. * sysdeps/mach/hurd/Makefile (sysdep_routines): Add read_nocancel and pread64_nocancel. * sysdeps/mach/hurd/not-cancel.h (__read_nocancel, __pread64_nocancel): Replace macros with prototypes with a hidden proto on libc. * sysdeps/mach/hurd/dl-sysdep.c: Include <not-cancel.h>. (__pread64_nocancel): New alias, check that it is not hidden. (__read_nocancel): New alias, check that it is not hidden. * sysdeps/mach/hurd/Versions (libc.GLIBC_PRIVATE): Add __read_nocancel and __pread64_nocancel. (ld.GLIBC_2.1): Add __pread64. (ld.GLIBC_PRIVATE): Add __read_nocancel and __pread64_nocancel. * sysdeps/mach/hurd/i386/ld.abilist (__pread64): Add symbol. * sysdeps/mach/hurd/i386/localplt.data (__read_nocancel, __pread64, __pread64_nocancel): Add references.
2020-06-07hurd: Fix unwinding over interruptible RPCSamuel Thibault1-0/+2
* sysdeps/mach/hurd/i386/intr-msg.h (INTR_MSG_TRAP): Set CFA register to %ecx while %esp is altered.
2020-06-07htl: Enable but XFAIL tst-flock2, tst-signal1, tst-signal2Samuel Thibault1-0/+3
They need setpshared support. * nptl/tst-flock2.c, tst-signal1.c, tst-signal2.c: Move to... * sysdeps/pthread: ... here. * nptl/Makefile: Move corresponding tests references to... * sysdeps/pthread/Makefile: ... here. * sysdeps/mach/hurd/i386/Makefile (test-xfail-tst-flock2, test-xfail-tst-signal1, test-xfail-tst-signal2): Add.
2020-06-07hurd: XFAIL more tests that require setpshared supportSamuel Thibault1-0/+3
* sysdeps/mach/hurd/i386/Makefile (test-xfail-tst-pututxline-cache, test-xfail-tst-pututxline-lockfail, test-xfail-tst-mallocfork2): Add.
2020-06-07hurd: Briefly document in xfails the topics of the bugzilla entriesSamuel Thibault1-0/+6
* sysdeps/mach/hurd/i386/Makefile: Add comments.
2020-06-07htl: Add sem_clockwait supportSamuel Thibault1-0/+1
* sysdeps/htl/sem-timedwait.c (__sem_timedwait_internal): Add clock_id parameter instead of hardcoding CLOCK_REALTIME. (__sem_clockwait): New function. (sem_clockwait): New weak alias. * sysdeps/htl/sem-wait.c (__sem_timedwait_internal): Update declaration. (__sem_wait): Update call to __sem_timedwait_internal. * htl/Versions (GLIBC_2.32): Add sem_clockwait. * sysdeps/mach/hurd/i386/libpthread.abilist (sem_clockwait): Add symbol. * nptl/Makefile (tests): Move tst-sem5 to... * sysdeps/pthread/Makefile (tests): ... here.
2020-06-06hurd: fix clearing SS_ONSTACK when longjmp-ing from sighandlerSamuel Thibault3-32/+126
* sysdeps/i386/htl/Makefile: New file. * sysdeps/i386/htl/tcb-offsets.sym: New file. * sysdeps/mach/hurd/i386/Makefile [setjmp] (gen-as-const-headers): Add signal-defines.sym. * sysdeps/mach/hurd/i386/____longjmp_chk.S: Include tcb-offsets.h. (____longjmp_chk): Harmonize with i386's __longjmp. Clear SS_ONSTACK when jumping off the alternate stack. * sysdeps/mach/hurd/i386/__longjmp.S: New file.
2020-06-06hurd: Add pointer guard supportSamuel Thibault1-0/+7
* sysdeps/mach/hurd/i386/tls.h (THREAD_SET_POINTER_GUARD, THREAD_COPY_POINTER_GUARD): New macros.
2020-06-06hurd: Add stack guard supportSamuel Thibault2-1/+9
* sysdeps/mach/hurd/i386/tls.h (THREAD_SET_STACK_GUARD, THREAD_COPY_STACK_GUARD): New macros * sysdeps/mach/hurd/i386/ld.abilist (__stack_chk_guard): Remove symbol.
2020-06-01htl: Make pthread_cond_destroy wait for threads to be wokenSamuel Thibault1-0/+11
This allows to reuse the storage after calling pthread_cond_destroy. * sysdeps/htl/bits/types/struct___pthread_cond.h (__pthread_cond): Replace unused struct __pthread_condimpl *__impl field with unsigned int __wrefs. (__PTHREAD_COND_INITIALIZER): Update accordingly. * sysdeps/htl/pt-cond-timedwait.c (__pthread_cond_timedwait_internal): Register as waiter in __wrefs field. On unregistering, wake any pending pthread_cond_destroy. * sysdeps/htl/pt-cond-destroy.c (__pthread_cond_destroy): Register wake request in __wrefs. * nptl/Makefile (tests): Move tst-cond20 tst-cond21 to... * sysdeps/pthread/Makefile (tests): ... here. * nptl/tst-cond20.c nptl/tst-cond21.c: Move to... * sysdeps/pthread/tst-cond20.c sysdeps/pthread/tst-cond21.c: ... here.
2020-05-28hurd: Fix fexecveSamuel Thibault1-3/+16
* sysdeps/mach/hurd/fexecve.c (fexecve): Re-lookup fd with O_EXEC before calling _hurd_exec_paths.
2020-05-28hurd: fix ptsname error when called on a non-ttySamuel Thibault1-1/+5
* sysdeps/mach/hurd/ptsname.c (__ptsname_internal): Replace not-supported errors from __term_get_peername with ENOTTY.
2020-05-28hurd: Fix fdopendir checking for directory typeSamuel Thibault1-1/+1
* sysdeps/mach/hurd/fdopendir.c (__fdopendir): Lookup "./" instead of "/" that would designate the root of the filesystem.
2020-05-26htl: Add clock variantsSamuel Thibault2-5/+22
* htl/pt-join.c (__pthread_join): Move implementation to... (__pthread_join_common): ... new function. Add try, timed and clock support. (__pthread_join): Reimplement on top of __pthread_join_common. (__pthread_tryjoin_np, __pthread_timedjoin_np, __pthread_clockjoin_np): Implement on top of __pthread_join_common. (pthread_tryjoin_np, pthread_timedjoin_np, pthread_clockjoin_np): New aliases. * hurd/hurdlock.c (__lll_abstimed_wait, __lll_abstimed_xwait, __lll_abstimed_lock): Check for supported clock. * sysdeps/htl/pt-cond-timedwait.c (__pthread_cond_timedwait_internal): Add clockid parameter and support it. (__pthread_cond_timedwait): Pass -1 as clockid. (__pthread_cond_clockwait): New function. (pthread_cond_clockwait): New alias. * sysdeps/htl/pt-cond-wait.c (__pthread_cond_timedwait_internal): Update prototype. (__pthread_cond_wait): Pass -1 as clockid. * sysdeps/htl/pt-rwlock-timedrdlock.c (__pthread_rwlock_timedrdlock_internal): Add clockid parameter, and support id. (__pthread_rwlock_clockrdlock): New function. (pthread_rwlock_clockrdlock): New alias. * sysdeps/htl/pt-rwlock-rdlock.c (__pthread_rwlock_timedrdlock_internal): Update prototype. (__pthread_rwlock_rdlock): Pass -1 as clockid. * sysdeps/htl/pt-rwlock-timedwrlock.c (__pthread_rwlock_timedwrlock_internal): Add clockid parameter, and support id. (__pthread_rwlock_clockwrlock): New function. (pthread_rwlock_clockwrlock): New alias. * sysdeps/htl/pt-rwlock-wrlock.c (__pthread_rwlock_timedwrlock_internal): Update prototype. (__pthread_rwlock_wrlock): Pass -1 as clockid. * sysdeps/mach/hurd/htl/pt-mutex-timedlock.c (__pthread_mutex_timedlock): Move implementation to (__pthread_mutex_clocklock): New function with additional clockid parameter and support it. (pthread_mutex_clocklock): New alias. (__pthread_mutex_timedlock): Reimplement on top of __pthread_mutex_clocklock. * sysdeps/htl/pthread.h (pthread_tryjoin_np, pthread_timedjoin_np, pthread_clockjoin_np, pthread_mutex_clocklock, pthread_cond_clockwait, pthread_rwlock_clockrdlock, pthread_rwlock_clockwrlock): New prototypes. * sysdeps/htl/pthreadP.h (__pthread_cond_clockwait): New prototype. * htl/Versions (GLIBC_2.32): Add pthread_cond_clockwait, pthread_mutex_clocklock, pthread_rwlock_clockrdlock, pthread_rwlock_clockwrlock, pthread_tryjoin_np, pthread_timedjoin_np, pthread_clockjoin_np. * sysdeps/mach/hurd/i386/libpthread.abilist (pthread_clockjoin_np, pthread_cond_clockwait, pthread_mutex_clocklock, pthread_rwlock_clockrdlock, pthread_rwlock_clockwrlock, pthread_timedjoin_np, pthread_tryjoin_np): New functions. * nptl/tst-abstime.c, nptl/tst-join10.c, nptl/tst-join11.c, nptl/tst-join12.c, nptl/tst-join13.c, nptl/tst-join14.c, nptl/tst-join2.c, nptl/tst-join3.c, nptl/tst-join8.c, nptl/tst-join9.c, nptl/tst-mutex-errorcheck.c, nptl/tst-pthread-mutexattr.c, nptl/tst-mutex11.c, nptl/tst-mutex5.c, nptl/tst-mutex7.c, nptl/tst-mutex7robus.c, nptl/tst-mutex9.c, nptl/tst-rwlock12.c, nptl/tst-rwlock14.c: Move to sysdeps/pthread. * sysdeps/pthread/tst-mutex8.c: Move back to nptl. * nptl/Makefile (tests): Move tst-mutex5, tst-mutex7, tst-mutex7robust, tst-mutex9, tst-mutex11, tst-rwlock12, tst-rwlock14, tst-join2, tst-join3, tst-join8, tst-join9 tst-join10, tst-join11, tst-join12, tst-join13, tst-join14, tst-abstime, tst-mutex-errorcheck, tst-pthread-mutexattr to ... * sysdeps/pthread/Makefile (tests): ... here.
2020-05-25elf: Turn _dl_printf, _dl_error_printf, _dl_fatal_printf into functionsFlorian Weimer1-0/+1
This change makes it easier to set a breakpoint on these calls. This also addresses the issue that including <ldsodefs.h> without <unistd.h> does not result usable _dl_*printf macros because of the use of the STD*_FILENO macros there. (The private symbol for _dl_fatal_printf will go away again once the exception handling implementation is unified between libc and ld.so.) Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2020-05-18Remove NO_CTORS_DTORS_SECTIONS macroFlorian Weimer1-5/+0
This was originally added to support binutils older than version 2.22: <https://sourceware.org/ml/libc-alpha/2010-12/msg00051.html> Since 2.22 is older than the minimum required binutils version for building glibc, we no longer need this. (The changes do not impact the statically linked startup code.)
2020-05-05y2038: hurd: Provide __clock_gettime64 functionLukasz Majewski1-0/+14
For Linux glibc ports the __TIMESIZE == 64 ensures proper aliasing for __clock_gettime64 (to __clock_gettime). When __TIMESIZE != 64 (like ARM32, PPC) the glibc expects separate definition of the __clock_gettime64. The HURD port only provides __clock_gettime, so this patch adds __clock_gettime64 as a tiny wrapper on it. Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2020-04-24elf: Implement __libc_early_initFlorian Weimer1-4/+0
This function is defined in libc.so, and the dynamic loader calls right after relocation has been finished, before any ELF constructors or the preinit function is invoked. It is also used in the static build for initializing parts of the static libc. To locate __libc_early_init, a direct symbol lookup function is used, _dl_lookup_direct. It does not search the entire symbol scope and consults merely a single link map. This function could also be used to implement lookups in the vDSO (as an optimization). A per-namespace variable (libc_map) is added for locating libc.so, to avoid repeated traversals of the search scope. It is similar to GL(dl_initfirst). An alternative would have been to thread a context argument from _dl_open down to _dl_map_object_from_fd (where libc.so is identified). This could have avoided the global variable, but the change would be larger as a result. It would not have been possible to use this to replace GL(dl_initfirst) because that global variable is used to pass the function pointer past the stack switch from dl_main to the main program. Replacing that requires adding a new argument to _dl_init, which in turn needs changes to the architecture-specific libc.so startup code written in assembler. __libc_early_init should not be used to replace _dl_var_init (as it exists today on some architectures). Instead, _dl_lookup_direct should be used to look up a new variable symbol in libc.so, and that should then be initialized from the dynamic loader, immediately after the object has been loaded in _dl_map_object_from_fd (before relocation is run). This way, more IFUNC resolvers which depend on these variables will work. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2020-04-14hurd: add mach_print functionSamuel Thibault1-0/+1
* mach/Versions (GLIBC_2.32): Add mach_print. * sysdeps/mach/hurd/i386/libc.abilist (GLIBC_2.32): Add mach_print.
2020-02-27posix: Remove posix waitidAdhemerval Zanella1-0/+106
The POSIX waitid implementation is problematic in some ways: - It emulates using waitpid, which default implementation calls wait4 and wait4 returns ENOSYS as default. - Also by using waitpid it does not allod support the WNOWAIT, WEXITED, WSTOPPED, or WCONTINUED flag. With current POSIX specification the flags are no longer marked as optional. Also due BZ#23091 Hurd still uses the implementation, so it is moved to as a Hurd arch-specific folder (with some minor cleanups). Checked against a i686-gnu (run-built-tests=no)
2020-02-18<fd_to_filename.h>: Add type safety and port to HurdFlorian Weimer1-0/+19
The new type struct fd_to_filename makes the allocation of the backing storage explicit. Hurd uses /dev/fd, not /proc/self/fd. Co-Authored-By: Paul Eggert <eggert@cs.ucla.edu>
2020-02-17x86: Avoid single-argument _Static_assert in <tls.h>Florian Weimer1-8/+12
Older GCC versions do not support this extension. Fixes commit f1bdee61797 ("x86 tls: Use _Static_assert for TLS access size assertion").
2020-02-17x86 tls: Use _Static_assert for TLS access size assertionSamuel Thibault1-26/+20
2020-02-16pthread: Move robust mutex tests from nptl to sysdeps/pthreadSamuel Thibault1-5/+11
tst-robust8.c prints some mutex internals for nptl debugging, this needed to be made conditioned by getting built with nptl.
2020-02-16htl: Remove stub warning for pthread_mutexattr_setpsharedSamuel Thibault1-1/+0
It actually is implemented.
2020-02-16htl: Add missing functions and defines for robust mutexesSamuel Thibault1-0/+6
2020-02-15htl: Only check pthread_self coherency when DEBUG is setSamuel Thibault1-0/+4
htl has been widely tested for a long time now with this coherency checked successfully.
2020-02-15hurd: Add THREAD_GET/SETMEM/_NCSamuel Thibault1-0/+108
Store them in the TCB, and use them for accessing _hurd_sigstate.
2020-02-15hurd tls: update comment about fields at the end of tcbheadSamuel Thibault1-2/+2
2020-02-15ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486]Florian Weimer2-10/+0
Exporting functions and relying on symbol interposition from libc.so makes the choice of implementation dependent on DT_NEEDED order, which is not what some compiler drivers expect. This commit replaces one magic mechanism (symbol interposition) with another one (preprocessor-/compiler-based redirection). This makes the hand-over from the minimal malloc to the full malloc more explicit. Removing the ABI symbols is backwards-compatible because libc.so is always in scope, and the dynamic loader will find the malloc-related symbols there since commit f0b2132b35248c1f4a80f62a2c38cddcc802aa8c ("ld.so: Support moving versioned symbols between sonames [BZ #24741]"). Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2020-02-12io: Implement lchmod using fchmodat [BZ #14578]Florian Weimer1-0/+1
2020-02-10htl C11 threads: Avoid pthread_ symbols visibility in static librarySamuel Thibault7-10/+6
2020-02-11hurd: Add __pthread_spin_wait and use itSamuel Thibault2-3/+12
900778283ac3 ("htl: make pthread_spin_lock really spin") made pthread_spin_lock really spin and not block, but the current users of __pthread_spin_lock were assuming that it blocks, i.e. they use it as a lightweight mutex fitting in just one int. __pthread_spin_wait provides that support back.
2020-02-10pthread: Move most barrier tests from nptl to sysdeps/pthreadSamuel Thibault1-0/+1
So they can be checked with htl too.
2020-02-10pthread: Move most sem tests from nptl to sysdeps/pthreadSamuel Thibault1-0/+9
So they can be checked with htl too.
generated by cgit v1.1 at 2024-09-01 18:42:46 +0000