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2019-12-29hurd: Global signal dispositionJeremie Koenig1-0/+7
This adds _hurd_sigstate_set_global_rcv used by libpthread to enable POSIX-confirming behavior of signals on a per-thread basis. This also provides a sigstate destructor _hurd_sigstate_delete, and a global process signal state, which needs to be locked and check when global disposition is enabled, thus the addition of _hurd_sigstate_lock _hurd_sigstate_actions _hurd_sigstate_pending _hurd_sigstate_unlock helpers. This also updates all the glibc code accordingly. This also drops support for get_int(INIT_SIGMASK), which did not make sense any more since we do not have a single signal thread any more. During fork/spawn, this also reinitializes the child global sigstate's lock. That cures an issue that would very rarely cause a deadlock in the child in fork, tries to unlock ss' critical section lock at the end of fork. This will typically (always?) be observed in /bin/sh, which is not surprising as that is the foremost caller of fork. To reproduce an intermediate state, add an endless loop if _hurd_global_sigstate is locked after __proc_dostop (cast through volatile); that is, while still being in the fork's parent process. When that triggers (use the libtool testsuite), the signal thread has already locked ss (which is _hurd_global_sigstate), and is stuck at hurdsig.c:685 in post_signal, trying to lock _hurd_siglock (which the main thread already has locked and keeps locked until after __task_create). This is the case that ss->thread == MACH_PORT_NULL, that is, a global signal. In the main thread, between __proc_dostop and __task_create is the __thread_abort call on the signal thread which would abort any current kernel operation (but leave ss locked). Later in fork, in the parent, when _hurd_siglock is unlocked in fork, the parent's signal thread can proceed and will unlock eventually the global sigstate. In the client, _hurd_siglock will likewise be unlocked, but the global sigstate never will be, as the client's signal thread has been configured to restart execution from _hurd_msgport_receive. Thus, when the child tries to unlock ss' critical section lock at the end of fork, it will first lock the global sigstate, will spin trying to lock it, which can never be successful, and we get our deadlock. Options seem to be: * Move the locking of _hurd_siglock earlier in post_signal -- but that may generally impact performance, if this locking isn't generally needed anyway? On the other hand, would it actually make sense to wait here until we are not any longer in a critical section (which is meant to disable signal delivery anyway (but not for preempted signals?))? * Clear the global sigstate in the fork's child with the rationale that we're anyway restarting the signal thread from a clean state. This has now been implemented. Why has this problem not been observed before Jérémie's patches? (Or has it? Perhaps even more rarely?) In _S_msg_sig_post, the signal is now posted to a *global receiver thread*, whereas previously it was posted to the *designated signal-receiving thread*. The latter one was in a critical section in fork, so didn't try to handle the signal until after leaving the critical section? (Not completely analyzed and verified.) Another question is what the signal is that is being received during/around the time __proc_dostop executes.
2018-11-10Hurd: export _hurd_port_moveSamuel Thibault1-0/+4
* hurd/Versions (_hurd_port_move): Export function. * sysdeps/mach/hurd/i386/libc.abilist (_hurd_port_move): Expect symbol.
2018-03-18hurd: Reimplement libc locks using mach's gsyncAgustina Arzille1-1/+8
* hurd/Makefile (routines): Add hurdlock. * hurd/Versions (GLIBC_PRIVATE): Added new entry to export the above interface. (HURD_CTHREADS_0.3): Remove __libc_getspecific. * hurd/hurdpid.c: Include <lowlevellock.h> (_S_msg_proc_newids): Use lll_wait to synchronize. * hurd/hurdsig.c: (reauth_proc): Use __mutex_lock and __mutex_unlock. * hurd/setauth.c: Include <hurdlock.h>, use integer for synchronization. * mach/Makefile (lock-headers): Remove machine-lock.h. * mach/lock-intern.h: Include <lowlevellock.h> instead of <machine-lock.h>. (__spin_lock_t): New type. (__SPIN_LOCK_INITIALIZER): New macro. (__spin_lock, __spin_unlock, __spin_try_lock, __spin_lock_locked, __mutex_init, __mutex_lock_solid, __mutex_unlock_solid, __mutex_lock, __mutex_unlock, __mutex_trylock): Use lll to implement locks. * mach/mutex-init.c: Include <lowlevellock.h> instead of <cthreads.h>. (__mutex_init): Initialize with lll. * manual/errno.texi (EOWNERDEAD, ENOTRECOVERABLE): New errno values. * sysdeps/mach/Makefile: Add libmachuser as dependencies for libs needing lll. * sysdeps/mach/hurd/bits/errno.h: Regenerate. * sysdeps/mach/hurd/cthreads.c (__libc_getspecific): Remove function. * sysdeps/mach/hurd/bits/libc-lock.h: Remove file. * sysdeps/mach/hurd/setpgid.c: Include <lowlevellock.h>. (__setpgid): Use lll for synchronization. * sysdeps/mach/hurd/setsid.c: Likewise with __setsid. * sysdeps/mach/bits/libc-lock.h: Include <tls.h> and <lowlevellock.h> instead of <cthreads.h>. (_IO_lock_inexpensive): New macro (__libc_lock_recursive_t, __rtld_lock_recursive_t): New structures. (__libc_lock_self0): New declaration. (__libc_lock_owner_self): New macro. (__libc_key_t): Remove type. (_LIBC_LOCK_INITIALIZER): New macro. (__libc_lock_define_initialized, __libc_lock_init, __libc_lock_fini, __libc_lock_fini_recursive, __rtld_lock_fini_recursive, __libc_lock_lock, __libc_lock_trylock, __libc_lock_unlock, __libc_lock_define_initialized_recursive, __rtld_lock_define_initialized_recursive, __libc_lock_init_recursive, __libc_lock_trylock_recursive, __libc_lock_lock_recursive, __libc_lock_unlock_recursive, __rtld_lock_initialize, __rtld_lock_trylock_recursive, __rtld_lock_lock_recursive, __rtld_lock_unlock_recursive __libc_once_define, __libc_mutex_unlock): Reimplement with lll. (__libc_lock_define_recursive, __rtld_lock_define_recursive, _LIBC_LOCK_RECURSIVE_INITIALIZER, _RTLD_LOCK_RECURSIVE_INITIALIZER): New macros. Include <libc-lockP.h> to reimplement libc_key* with pthread_key*. * hurd/hurdlock.c: New file. * hurd/hurdlock.h: New file. * mach/lowlevellock.h: New file
2018-03-17hurd: Fix link cthread/pthread symbol exposition.Samuel Thibault1-3/+3
* hurd/Versions (HURD_CTHREADS_0.3): Rename weak refs cthread_fork, cthread_detach, pthread_getattr_np, pthread_attr_getstack, cthread_keycreate, cthread_getspecific, cthread_setspecific to __cthread_fork, __cthread_detach, __pthread_getattr_np, __pthread_attr_getstack, __cthread_keycreate, __cthread_getspecific, __cthread_setspecific. * hurd/hurdsig.c (_hurdsig_init): Use __cthread_fork, __cthread_detach, __pthread_getattr_np, __pthread_attr_getstack, __cthread_t instead of cthread_fork, cthread_detach, pthread_getattr_np, pthread_attr_getstack. * sysdeps/mach/hurd/cthreads.c (cthread_keycreate): Rename to __cthread_keycreate. (cthread_getspecific): Rename to __cthread_getspecific. (cthread_setspecific): Rename to __cthread_setspecific. (__libc_getspecific): Use __cthread_getspecific instead of cthread_getspecific. * sysdeps/mach/hurd/libc-lock.h (__libc_key_create): Use __cthread_keycreate instead of cthread_keycreate. (__libc_setspecific): Use __cthread_setspecific instead of cthread_setspecific. * sysdeps/mach/libc-lock.h (__libc_key_create, __libc_setspecific): Likewise.
2018-03-17hurd: Replace threadvars with TLSSamuel Thibault1-6/+1
This gets rid of a lot of kludge and gets closer to other ports. * hurd/Makefile (headers): Remove threadvar.h. (inline-headers): Remove threadvar.h. * hurd/Versions (GLIBC_2.0: Remove __hurd_sigthread_stack_base, __hurd_sigthread_stack_end, __hurd_sigthread_variables, __hurd_threadvar_max, __hurd_errno_location. (HURD_CTHREADS_0.3): Add pthread_getattr_np, pthread_attr_getstack. * hurd/hurd/signal.h: Do not include <hurd/threadvar.h>. (_hurd_self_sigstate): Use THREAD_SELF to get _hurd_sigstate. (_HURD_SIGNAL_H_EXTERN_INLINE): Use THREAD_SELF to get _hurd_sigstate, unless TLS is not initialized yet, in which case we do not need a critical section yet anyway. * hurd/hurd/threadvar.h: Include <tls.h>, do not include <machine-sp.h>. (__hurd_sigthread_variables, __hurd_threadvar_max): Remove variables declarations. (__hurd_threadvar_index): Remove enum. (_HURD_THREADVAR_H_EXTERN_INLINE): Remove macro. (__hurd_threadvar_location_from_sp,__hurd_threadvar_location): Remove inlines. (__hurd_reply_port0): New variable declaration. (__hurd_local_reply_port): New macro. * hurd/hurdsig.c (__hurd_sigthread_variables): Remove variable. (interrupted_reply_port_location): Add thread_t parameter. Use it with THREAD_TCB to access thread-local variables. (_hurdsig_abort_rpcs): Pass ss->thread to interrupted_reply_port_location. (_hurd_internal_post_signal): Likewise. (_hurdsig_init): Use presence of cthread_fork instead of __hurd_threadvar_stack_mask to start signal thread by hand. Remove signal thread threadvar initialization. * hurd/hurdstartup.c: Do not include <hurd/threadvar.h> * hurd/sigunwind.c: Include <hurd/threadvar.h> (_hurdsig_longjmp_from_handler): Use __hurd_local_reply_port instead of threadvar. * sysdeps/mach/hurd/Versions (libc.GLIBC_PRIVATE): Add __libc_lock_self0. (ld.GLIBC_2.0): Remove __hurd_sigthread_stack_base, __hurd_sigthread_stack_end, __hurd_sigthread_variables. (ld.GLIBC_PRIVATE): Add __libc_lock_self0. * sysdeps/mach/hurd/cthreads.c: Add __libc_lock_self0. * sysdeps/mach/hurd/dl-sysdep.c (errno, __hurd_sigthread_stack_base, __hurd_sigthread_stack_end, __hurd_sigthread_variables, threadvars, __hurd_threadvar_stack_offset, __hurd_threadvar_stack_mask): Do not define variables. * sysdeps/mach/hurd/errno-loc.c: Do not include <errno.h> and <hurd/threadvar.h>. [IS_IN(rtld)] (rtld_errno): New variable. [IS_IN(rtld)] (__errno_location): New weak function. [!IS_IN(rtld)]: Include "../../../csu/errno-loc.c". * sysdeps/mach/hurd/errno.c: Remove file. * sysdeps/mach/hurd/fork.c: Include <hurd/threadvar.h> (__fork): Remove THREADVAR_SPACE macro and its use. * sysdeps/mach/hurd/i386/init-first.c (__hurd_threadvar_max): Remove variable. (init): Do not initialize threadvar. * sysdeps/mach/hurd/i386/libc.abilist (__hurd_threadvar_max): Remove symbol. * sysdeps/mach/hurd/i386/sigreturn.c (__sigreturn): Use __hurd_local_reply_port instead of threadvar. * sysdeps/mach/hurd/i386/tls.h (tcbhead_t): Add reply_port and _hurd_sigstate fields. (HURD_DESC_TLS, __LIBC_NO_TLS, THREAD_TCB): New macro. * sysdeps/mach/hurd/i386/trampoline.c: Remove outdated comment. * sysdeps/mach/hurd/libc-lock.h: Do not include <hurd/threadvar.h>. (__libc_lock_owner_self): Use &__libc_lock_self0 and THREAD_SELF instead of threadvar. * sysdeps/mach/hurd/libc-tsd.h: Remove file. * sysdeps/mach/hurd/mig-reply.c (GETPORT, reply_port): Remove macros. (use_threadvar, global_reply_port): Remove variables. (__hurd_reply_port0): New variable. (__mig_get_reply_port): Use __hurd_local_reply_port and __hurd_reply_port0 instead of threadvar. (__mig_dealloc_reply_port): Likewise. (__mig_init): Do not initialize threadvar. * sysdeps/mach/hurd/profil.c: Fix comment.
2018-01-29hurd: Add expected ABI listsSamuel Thibault1-3/+4
* hurd/Versions: Fix version when _hurd_exec_paths was added. * mach/Versions: Fix version when __mach_host_self_ was added. * sysdeps/mach/hurd/i386/ld.abilist: New file. * sysdeps/mach/hurd/i386/libBrokenLocale.abilist: New file. * sysdeps/mach/hurd/i386/libanl.abilist: New file. * sysdeps/mach/hurd/i386/libc.abilist: New file. * sysdeps/mach/hurd/i386/libcrypt.abilist: New file. * sysdeps/mach/hurd/i386/libdl.abilist: New file. * sysdeps/mach/hurd/i386/libm.abilist: New file. * sysdeps/mach/hurd/i386/libnsl.abilist: New file. * sysdeps/mach/hurd/i386/libresolv.abilist: New file. * sysdeps/mach/hurd/i386/librt.abilist: New file. * sysdeps/mach/hurd/i386/libutil.abilist: New file.
2018-01-28hurd: take __USE_EXTERN_INLINES into account and restrict inlinesSamuel Thibault1-0/+8
* hurd/hurd.h (__hurd_fail): Always declare function, and provide inline version only if __USE_EXTERN_INLINES is defined. * hurd/hurd/fd.h (_hurd_fd_error_signal, _hurd_fd_error, __hurd_dfail, __hurd_sockfail): Likewise. (_hurd_fd_get): Always declare functions, and provide inline versions only if __USE_EXTERN_INLINES and _LIBC are defined and IS_IN(libc). * hurd/hurd/port.h (_hurd_port_init, _hurd_port_locked_get, _hurd_port_get, _hurd_port_free, _hurd_port_locked_set, _hurd_port_set): Always declare functions, and provide inline versions only if __USE_EXTERN_INLINES and _LIBC are defined and IS_IN(libc). * hurd/hurd/signal.h (_hurd_self_sigstate, _hurd_critical_section_lock, _hurd_critical_section_unlock): Likewise. * hurd/hurd/threadvar.h (__hurd_threadvar_location_from_sp, * __hurd_threadvar_location): Likewise. * hurd/hurd/userlink.h (_hurd_userlink_link, _hurd_userlink_unlink, _hurd_userlink_clear): Likewise. * mach/lock-intern.h (__spin_lock_init, __spin_lock, __mutex_lock, __mutex_unlock, __mutex_trylock): Always declare functions, and provide inline versions only if __USE_EXTERN_INLINES and _LIBC are defined. * mach/mach/mig_support.h (__mig_strncpy): Likewise. * sysdeps/generic/machine-lock.h (__spin_unlock, __spin_try_lock, __spin_lock_locked): Likewise. * sysdeps/mach/i386/machine-lock.h (__spin_unlock, __spin_try_lock, __spin_lock_locked): Likewise. * mach/spin-lock.c (__USE_EXTERN_INLINES): Define to 1. * hurd/Versions (libc: GLIBC_2.27): Add _hurd_fd_error_signal, _hurd_fd_error, __hurd_dfail, __hurd_sockfail, _hurd_port_locked_set, __hurd_threadvar_location_from_sp, __hurd_threadvar_location, _hurd_userlink_link, _hurd_userlink_unlink, _hurd_userlink_clear.
2018-01-09hurd: Use the new file_exec_paths RPCSamuel Thibault1-0/+4
From: Emilio Pozuelo Monfort <pochu27@gmail.com> From: Svante Signell <svante.signell@gmail.com> Pass the file paths of executable to the exec server, both relative and absolute, which exec needs to properly execute and avertise #!-scripts. Previously, the exec server tried to guess the name from argv[0] but argv[0] only contains the executable name by convention. * hurd/hurdexec.c (_hurd_exec): Deprecate function. (_hurd_exec_paths): New function. * hurd/hurd.h (_hurd_exec): Deprecate function. (_hurd_exec_paths): Declare function. * hurd/Versions: Export _hurd_exec_paths. * sysdeps/mach/hurd/execve.c: Include <stdlib.h> and <stdio.h> (__execve): Use __getcwd to build absolute path, and use _hurd_exec_paths instead of _hurd_exec. * sysdeps/mach/hurd/spawni.c: Likewise. * sysdeps/mach/hurd/fexecve.c: Use _hurd_exec_paths instead of _hurd_exec.
2017-08-28hurd: Remove duplicate symbol versionSamuel Thibault1-4/+0
* hurd/Versions (GLIBC_2.4): Remove __stack_chk_fail. * mach/Versions (GLIBC_2.4): Remove __stack_chk_fail.
2017-08-28hurd: Fix typoSamuel Thibault1-1/+1
* hurd/Versions: Fix typo. * mach/Versions: Fix typo.
2017-08-27hurd: fix build with -fstack-protector-strongSamuel Thibault1-0/+4
libmachuser and libhurduser also need stack_chk_fail_local and they do not link against libc_nonshared. * mach/stack_chk_fail_local.c: New file. * hurd/stack_chk_fail_local.c: New file. * mach/Machrules ($(interface-library)-routines): Add stack_chk_fail_local. * mach/Versions (GLIBC_2.4): Add __stack_chk_fail. * hurd/Versions (GLIBC_2.4): Add __stack_chk_fail.
2014-02-22Remove obsolete SHLIB_COMPAT conditionalization in Versions files.Roland McGrath1-29/+0
2002-03-112002-03-11 Roland McGrath <roland@frob.com>Roland McGrath1-0/+4
* Versions.def (libc): Add GLIBC_2.2.6. * hurd/Versions (libc: GLIBC_2.2.6): Add __errno_location. * sysdeps/mach/hurd/errnos.awk: In generated macro, use __errno_location instead of __hurd_errno_location, and don't inline it. * sysdeps/mach/hurd/bits/errno.h: Regenerated. * hurd/errno.c: New file. * hurd/Makefile (routines): Add errno.
2002-02-18* hurd/Versions (libc: GLIBC_2.0): Add _S_catch_exception_raise_state,Roland McGrath1-1/+6
_S_catch_exception_raise_state_identity, _hurdsig_fault_catch_exception_raise_state, _hurdsig_fault_catch_exception_raise_state_identity. * mach/shortcut.awk: Don't apply the /^}$/ rule when $proto == "". * sysdeps/mach/getsysstats.c (__get_avphys_pages) [HOST_VM_INFO]: Use __host_info with HOST_VM_INFO flavor instead of __vm_statistics. * sysdeps/mach/hurd/getpriority.c [TASK_SCHED_TIMESHARE_INFO]: Find `base_priority' in PIP->timeshare_base_info instead of PIP->taskinfo. * sysdeps/mach/hurd/dl-sysdep.c [FMH]: Define for i386 only. (fmh, unfmh): Define these functions only #if FMH. Otherwise define them as no-op macros. [FMH] (ELF_MACHINE_USER_ADDRESS_MASK): Redefine it to zero. (__mmap): Uncomment uses of ELF_MACHINE_USER_ADDRESS_MASK. * sysdeps/powerpc/dl-machine.h (ELF_MACHINE_USER_ADDRESS_MASK): New macro.
2002-02-17* sysdeps/mach/configure.in: Add some checks for Mach headersRoland McGrath1-5/+3
to ensure a sane installation. (mach_interface_list): Define this variable by checking for .defs files found in various variants. * configure.in (mach_interface_list): AC_SUBST this. * config.make.in (mach-interface-list): New substituted variable. * mach/Makefile (user-interfaces): Define this using the value of $(mach-interface-list) instead of mach, mach4. Updated other references to mach_interface to use it as well. * sysdeps/mach/powerpc/machine-lock.h: Avoid multi-line strings. * mach/msgserver.c [NDR_CHAR_ASCII] (mig_reply_header_t): #define as mig_reply_error_t for OSF Mach variant. * mach/Makefile (routines): Remove bootprivport. * mach/bootprivport.c: File removed. It has never been used. * mach/msg-destroy.c (__mach_msg_destroy) [MACH_MSG_PORT_DESCRIPTOR]: Grok the OSF flavor of message format. (mach_msg_destroy_port): For MAKE_SEND and MAKE_SEND_ONCE rights, create an destroy a right to ensure proper no-senders notification. 2002-02-06 Roland McGrath <roland@frob.com> * hurd/Versions (libc: GLIBC_2.0): Move cthread_fork, cthread_detach to here if 2.0 compatibility enabled ... (libc: GLIBC_2.1.3): ... from here.
2001-12-22* hurd/Versions (libc: GLIBC_2.2.5): Add _hurd_port_set,Roland McGrath1-1/+2
_hurd_port_init, and __hurd_self_sigstate.
2001-12-222001-12-22 Roland McGrath <roland@frob.com>Roland McGrath1-1/+5
* mach/Versions (libc: GLIBC_2.2.5): Add mig_strncpy. * hurd/Versions (libc: GLIBC_2.2.5): Add _hurd_port_set and __hurd_self_sigstate.
2001-08-24* hurd/Versions (libc: GLIBC_2.2.5): New set; add _hurd_raise_signal,Roland McGrath1-0/+5
_hurdsig_interrupt_timeout, _hurdsig_fault_preemptor. * sysdeps/posix/shm_unlink.c (shm_unlink): __unlink -> unlink. * mach/Versions (libc: GLIBC_2.2.5): New set; add __mach_msg_destroy, __mach_reply_port.
2001-08-212001-08-21 Roland McGrath <roland@frob.com>Roland McGrath1-0/+4
* hurd/Versions (GLIBC_2.2.5): New set, define __hurd_fail here. * Versions.def (libc): Add GLIBC_2.2.5 set. * hurd/hurd.h (_HURD_H_EXTERN_INLINE): New macro. (__hurd_fail): Use that instead of _EXTERN_INLINE in decl.
2000-04-022000-04-02 Roland McGrath <roland@baalperazim.frob.com>Roland McGrath1-1/+1
* mach/Versions: Define SHARED instead of PIC to affect shlib-compat.h. * hurd/Versions: Likewise.
2000-03-302000-03-30 Roland McGrath <roland@baalperazim.frob.com>Roland McGrath1-1/+33
* mach/Versions (libc: GLIBC_2.0) [SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)]: Conditionalize __vm_allocate on this. [SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)]: Conditionalize mutex- and spinlock-related symbols on this. [!SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)] (libc: HURD_CTHREADS_0.3): New version set. Lock-related symbols go here instead in this case. * sysdeps/mach/hurd/Versions (libc: GLIBC_2.0): Remove _cthread_exit_routine, _cthread_init_routine, cthread_keycreate, cthread_getspecific, cthread_setspecific, __libc_getspecific. * hurd/Versions [SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)] (libc: GLIBC_2.0): Put them here instead. [!SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)] (libc: HURD_CTHREADS_0.3): New version set. Those cthreads symbols go here instead in this case. * Versions.def (libc) [USE_IN_LIBIO]: Add HURD_CTHREADS_0.3 version.
1999-12-031999-11-18 Roland McGrath <roland@baalperazim.frob.com>Roland McGrath1-0/+3
* hurd/hurdsig.c (_hurdsig_init): If __hurd_threadvar_stack_mask is nonzero, use cthread_fork to create the signal thread. * hurd/msgportdemux.c (_hurd_msgport_receive): Initialize _hurd_msgport_thread here (to self). * sysdeps/mach/hurd/fork.c (__fork): When __hurd_sigthread_stack_end is zero, instead compute child signal thread's starting SP from parent signal thread's current SP and the threadvar_stack variables. * hurd/Versions (GLIBC_2.1.3): Add cthread_fork, cthread_detach. These are now referenced weakly by _hurdsig_init. * hurd/report-wait.c (_S_msg_report_wait): Fix typo: &_hurd_itimer_thread not &_hurd_msgport_thread. 1999-10-01 Roland McGrath <roland@baalperazim.frob.com> * hurd/hurdfchdir.c (_hurd_change_directory_port_from_fd): Rewrite without HURD_DPORT_USE to clean up warnings. * hurd/dtable.c (get_dtable_port): Likewise. * hurd/hurdioctl.c (rectty_dtable): Renamed to install_ctty. (install_ctty): Do the changing of the cttyid port cell here, inside the critical section while we holding the dtable lock. (_hurd_setcttyid, tiocsctty, tiocnotty): Use that instead of changing the port cell and calling rectty_dtable. (_hurd_locked_install_cttyid): New function, split out of install_ctty. (install_ctty): Use it inside a critical section, with the lock held. * sysdeps/mach/hurd/setsid.c (__setsid): Use _hurd_locked_install_cttyid to effect the cttyid and dtable changes after proc_setsid, having held the dtable lock throughout. * hurd/dtable.c (ctty_new_pgrp): With the dtable lock held, check the cttyid port for null and bail out early if so. The dtable lock serializes us after any cttyid change and its associated dtable update.
1999-11-13* Versions.def (libc): Move GLIBC_2.2 dependency from GLIBC_2.1.1 toRoland McGrath1-0/+7
GLIBC_2.1.3. 1999-11-13 Roland McGrath <roland@baalperazim.frob.com>
1998-12-041998-12-04 Mark Kettenis <kettenis@phys.uva.nl>Roland McGrath1-1/+11
Provide backwards binary compatibility for the Hurd. * hurd/geteuids.c [PIC && DO_VERSIONING]: Make __getuids a weak alias for geteuids. * hurd/Versions [GLIBC_2.0]: Add __getuids, __hurd_file_name_lookup and _hurd_umask. [GLIBC_2.1]: Add _hurd_proc_init. * hurd/Makefile [versioning] (routines): Add compat-20. (shared-only-routines): Likewise. * hurd/hurdinit.c (_hurd_new_proc_init): Renamed from _hurd_proc_init. Use it as the default _hurd_proc_init version for GLIBC_2.1. * hurd/compat-20.c: New file. * mach/Versions [GLIBC_2.0]: Add __vm_allocate.
1998-12-031998-12-03 Mark Kettenis <kettenis@phys.uva.nl> Roland McGrath1-3/+9
* hurd/Versions [GLIBC_2.1]: Add _hurd_proc_init. * hurd/Versions: Move geteuids and seteuids from GLIBC_2.0 to GLIBC_2.1.
1998-11-301998-11-30 Mark Kettenis <kettenis@phys.uva.nl>Roland McGrath1-41/+72
* mach/Versions [libc, GLIBC_2.0]: Add __spin_lock, __spin_lock_init, __mutex_lock, __mutex_trylock, __mutex_unlock. Remove get_priviliged_ports. Moved to hurd/Versions. * hurd/Versions [libc, GLIBC_2.0]: Add _end. This makes the Hurd brk implementation see the end of the data segment of the program instead of the shared library. Add __hurd_errno_location. This inline function is used in user programs. Add _hurd_critical_section_lock, _hurd_critical_section_unlock, _hurd_fd_get, _hurd_port_free, _hurd_port_get, _hurd_port_locked_get. These inline functions are used by macros used in mail.local in the Hurd distribution. Add get_privileged_ports. Moved here from mach/Versions. Remove __hurd_file_name_lookup, __hurd_file_name_lookup_retry, __hurd_file_name_split, __hurd_file_name_path_lookup. These are not used outside libc. 1998-11-30 Mark Kettenis <kettenis@phys.uva.nl> * hurd/hurdstartup.c: Really include set-hooks.h with <> instead of "".
1998-11-291998-11-28 Roland McGrath <roland@baalperazim.frob.com> Roland McGrath1-1/+1
* hurd/setuids.c: Renamed to ... * hurd/seteuids.c: this. (setuids): Renamed to seteuids. * hurd/getuids.c: Renamed to ... * hurd/geteuids.c: this. (__getuids): Renamed to geteuids, no aliases. * hurd/hurd.h (geteuids, seteuids): Declare them. * hurd/Versions: Replace getuids; __getuids with geteuids; seteuids. * hurd/Makefile (routines): Updated.
1998-10-261998-10-26 Roland McGrath <roland@baalperazim.frob.com> Roland McGrath1-0/+3
* hurd/Versions: Add _hurd_dtable, _hurd_dtablesize, _hurd_dtable_lock, _hurd_intern_fd.
1998-10-241998-10-24 Roland McGrath <roland@baalperazim.frob.com>Roland McGrath1-275/+37
* sysdeps/mach/hurd/dl-sysdep.c (__getcwd): New weak function. * mach/Versions, hurd/Versions: Add numerous symbols. Remove libmachuser and libhurduser sections, punt versioning for those libraries for now. * misc/Versions: Add reboot here; it exists on all platforms. * sysdeps/unix/sysv/linux/Versions: Remove reboot here.
1998-07-02Update.Ulrich Drepper1-0/+298
1998-07-02 21:51 Ulrich Drepper <drepper@cygnus.com> * Makeconfig: Define list of subdirs as all-subdirs and make subdirs a copy. * Makefile: Add rules to generate map files. (distribute): Remove libc.map, add Versions.def and versions.awk. * Makerules: Change rules to find map files on common-objpfx. * elf/Makefile: Likewise. * md5-crypt/Makefile: Likewise. * nis/Makefile (libnsl-map): Remove. * Versions.def: New file. * versions.awk: New file. * argp/Versions: New file. * assert/Versions: New file. * catgets/Versions: New file. * csu/Versions: New file. * ctype/Versions: New file. * db/Versions: New file. * debug/Versions: New file. * dirent/Versions: New file. * elf/Versions: New file. * gmon/Versions: New file. * grp/Versions: New file. * hesiod/Versions: New file. * hurd/Versions: New file. * iconv/Versions: New file. * inet/Versions: New file. * intl/Versions: New file. * io/Versions: New file. * libio/Versions: New file. * linuxthreads/Versions: New file. * locale/Versions: New file. * login/Versions: New file. * malloc/Versions: New file. * math/Versions: New file. * md5-crypt/Versions: New file. * misc/Versions: New file. * nis/Versions: New file. * nss/Versions: New file. * posix/Versions: New file. * pwd/Versions: New file. * resolv/Versions: New file. * resource/Versions: New file. * rt/Versions: New file. * setjmp/Versions: New file. * shadow/Versions: New file. * signal/Versions: New file. * socket/Versions: New file. * stdio/Versions: New file. * stdio-common/Versions: New file. * stdlib/Versions: New file. * streams/Versions: New file. * string/Versions: New file. * sunrpc/Versions: New file. * sysdeps/alpha/Versions: New file. * sysdeps/alpha/fpu/Versions: New file. * sysdeps/i386/Versions: New file. * sysdeps/sparc/Versions: New file. * sysdeps/unix/sysv/Versions: New file. * sysdeps/unix/sysv/linux/Versions: New file. * sysdeps/unix/sysv/linux/alpha/Versions: New file. * sysdeps/unix/sysv/linux/i386/Versions: New file. * sysdeps/unix/sysv/linux/mips/Versions: New file. * sysvipc/Versions: New file. * termios/Versions: New file. * time/Versions: New file. * wcsmbs/Versions: New file. * wctype/Versions: New file. * libc.map: Removed. * db/libdb.map: Removed. * elf/libdl.map: Removed. * hesiod/libnss_hesiod.map: Removed. * hurd/libhurduser.map: Removed. * hurd/libmachuser.map: Removed. * linuxthreads/libpthread.map: Removed. * locale/libBrokenLocale.map: Removed. * login/libutil.map: Removed. * math/libm.map: Removed. * md5-crypt/libcrypt.map: Removed. * nis/libnsl.map: Removed. * nis/libnsl_compat.map: Removed. * nis/libnss_nis.map: Removed. * nis/libnss_nisplus.map: Removed. * nss/libnss_db.map: Removed. * nss/libnss_files.map: Removed. * resolv/libnss_dns.map: Removed. * resolv/libresolv.map: Removed. * rt/librt.map: Removed. * elf/dl-load.c (fillin_rpath): Fix test for trusted directory. Fix typos. * elf/rtld.c (process_dl_debug): Recognize 'all'. (process_envvars): LD_BIND_NOW must be followed by y, Y, or 1. * sysdeps/generic/elf/backtracesyms.c: Allocate string memory of correct size. * sysdeps/unix/sysv/linux/getsysstats.c (get_proc_path): Fix typo in comment.
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