1998-07-03 06:51:40 +08:00
|
|
|
libc {
|
|
|
|
GLIBC_2.0 {
|
1998-11-30 Mark Kettenis <kettenis@phys.uva.nl>
* 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 "".
1998-12-01 02:45:57 +08:00
|
|
|
# variables used in macros & inline functions
|
1998-07-03 06:51:40 +08:00
|
|
|
__hurd_threadvar_stack_mask; __hurd_threadvar_stack_offset;
|
1998-10-24 09:36:01 +08:00
|
|
|
|
1998-11-30 Mark Kettenis <kettenis@phys.uva.nl>
* 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 "".
1998-12-01 02:45:57 +08:00
|
|
|
# functions used in libmachuser and libhurduser
|
1998-07-03 06:51:40 +08:00
|
|
|
_S_catch_exception_raise;
|
2002-02-18 09:50:52 +08:00
|
|
|
_S_catch_exception_raise_state;
|
|
|
|
_S_catch_exception_raise_state_identity;
|
1998-07-03 06:51:40 +08:00
|
|
|
_S_msg_add_auth; _S_msg_del_auth;
|
|
|
|
_S_msg_describe_ports;
|
|
|
|
_S_msg_get_dtable; _S_msg_set_dtable;
|
|
|
|
_S_msg_get_env_variable; _S_msg_set_env_variable;
|
|
|
|
_S_msg_get_environment; _S_msg_set_environment;
|
|
|
|
_S_msg_get_fd; _S_msg_set_fd;
|
|
|
|
_S_msg_get_init_int; _S_msg_set_init_int;
|
|
|
|
_S_msg_get_init_ints; _S_msg_set_init_ints;
|
|
|
|
_S_msg_get_init_port; _S_msg_set_init_port;
|
|
|
|
_S_msg_get_init_ports; _S_msg_set_init_ports;
|
|
|
|
_S_msg_proc_newids; _S_msg_report_wait;
|
|
|
|
_S_msg_sig_post; _S_msg_sig_post_untraced;
|
2002-02-18 09:50:52 +08:00
|
|
|
_hurd_intr_rpc_mach_msg;
|
|
|
|
_hurdsig_fault_catch_exception_raise;
|
|
|
|
_hurdsig_fault_catch_exception_raise_state;
|
|
|
|
_hurdsig_fault_catch_exception_raise_state_identity;
|
1998-11-30 Mark Kettenis <kettenis@phys.uva.nl>
* 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 "".
1998-12-01 02:45:57 +08:00
|
|
|
|
|
|
|
# "quasi-internal" variables
|
|
|
|
_hurd_device_master;
|
|
|
|
_hurd_dtable; _hurd_dtablesize; _hurd_dtable_lock;
|
|
|
|
_hurd_host_priv;
|
|
|
|
_hurd_msgport;
|
|
|
|
_hurd_ports;
|
|
|
|
|
|
|
|
# "quasi-internal" functions
|
|
|
|
_hurd_canonicalize_directory_name_internal;
|
|
|
|
_hurd_critical_section_lock;
|
|
|
|
_hurd_critical_section_unlock;
|
|
|
|
_hurd_exception2signal;
|
|
|
|
_hurd_exec;
|
|
|
|
_hurd_fd_get;
|
|
|
|
_hurd_init;
|
|
|
|
_hurd_intern_fd;
|
|
|
|
_hurd_port_cleanup;
|
|
|
|
_hurd_port_free;
|
|
|
|
_hurd_port_get;
|
|
|
|
_hurd_port_locked_get;
|
|
|
|
_hurd_ports_use;
|
|
|
|
_hurd_thread_sigstate;
|
|
|
|
|
|
|
|
# functions in normal name space
|
|
|
|
|
|
|
|
# f*
|
|
|
|
file_name_lookup; file_name_lookup_under; file_name_path_lookup;
|
|
|
|
file_name_split;
|
|
|
|
fopenport;
|
|
|
|
|
|
|
|
# g*
|
|
|
|
get_privileged_ports;
|
1998-12-04 07:55:13 +08:00
|
|
|
getauth; getcrdir; getcwdir; getcttyid; getdport; getproc; getumask;
|
1998-11-30 Mark Kettenis <kettenis@phys.uva.nl>
* 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 "".
1998-12-01 02:45:57 +08:00
|
|
|
|
|
|
|
# h*
|
|
|
|
hurd_catch_signal;
|
|
|
|
hurd_check_cancel;
|
|
|
|
hurd_file_name_lookup; hurd_file_name_lookup_retry;
|
|
|
|
hurd_file_name_path_lookup; hurd_file_name_split;
|
|
|
|
hurd_preempt_signals;
|
|
|
|
hurd_safe_copyin; hurd_safe_copyout;
|
|
|
|
hurd_safe_memmove; hurd_safe_memset;
|
|
|
|
hurd_sig_post;
|
|
|
|
hurd_thread_cancel; hurd_thread_self;
|
2000-03-30 Roland McGrath <roland@baalperazim.frob.com>
* 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.
2000-03-31 03:26:35 +08:00
|
|
|
hurd_unpreempt_signals;
|
1998-11-30 Mark Kettenis <kettenis@phys.uva.nl>
* 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 "".
1998-12-01 02:45:57 +08:00
|
|
|
|
|
|
|
# o*
|
|
|
|
openport;
|
|
|
|
|
|
|
|
# p*
|
|
|
|
pid2task;
|
|
|
|
|
|
|
|
# s*
|
1998-12-04 07:55:13 +08:00
|
|
|
setauth; setcrdir; setcwdir; setproc; setcttyid;
|
1998-11-30 Mark Kettenis <kettenis@phys.uva.nl>
* 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 "".
1998-12-01 02:45:57 +08:00
|
|
|
|
|
|
|
# t*
|
|
|
|
task2pid;
|
|
|
|
|
|
|
|
# v*
|
|
|
|
vpprintf;
|
1998-07-03 06:51:40 +08:00
|
|
|
}
|
1998-12-04 07:55:13 +08:00
|
|
|
GLIBC_2.1 {
|
1998-12-04 21:47:40 +08:00
|
|
|
# "quasi-internal" functions
|
|
|
|
_hurd_proc_init;
|
|
|
|
|
1998-12-04 07:55:13 +08:00
|
|
|
# g*
|
|
|
|
geteuids;
|
|
|
|
|
|
|
|
# s*
|
|
|
|
seteuids;
|
|
|
|
}
|
1999-11-14 07:52:38 +08:00
|
|
|
GLIBC_2.1.3 {
|
|
|
|
# d*
|
|
|
|
directory_name_split;
|
|
|
|
|
|
|
|
# h*
|
|
|
|
hurd_directory_name_split;
|
|
|
|
}
|
2001-08-22 04:32:21 +08:00
|
|
|
GLIBC_2.2.5 {
|
2001-12-23 04:20:57 +08:00
|
|
|
# These always existed as inlines but the real functions were not exported.
|
2001-08-22 04:32:21 +08:00
|
|
|
__hurd_fail;
|
2001-12-23 04:52:21 +08:00
|
|
|
_hurd_self_sigstate;
|
2001-12-23 04:20:57 +08:00
|
|
|
|
|
|
|
# Same for these "quasi-internal" functions
|
2001-12-23 04:52:21 +08:00
|
|
|
_hurd_port_init;
|
2001-12-23 04:20:57 +08:00
|
|
|
_hurd_port_set;
|
2001-08-25 05:47:53 +08:00
|
|
|
|
|
|
|
# internal symbols used by other libraries (e.g. librt)
|
|
|
|
_hurd_raise_signal;
|
|
|
|
_hurdsig_interrupt_timeout;
|
|
|
|
_hurdsig_fault_preemptor; _hurdsig_fault_env;
|
2001-08-22 04:32:21 +08:00
|
|
|
}
|
2002-03-12 05:28:28 +08:00
|
|
|
GLIBC_2.2.6 {
|
|
|
|
# functions used in macros & inline functions
|
|
|
|
__errno_location;
|
|
|
|
}
|
2018-01-29 06:30:15 +08:00
|
|
|
GLIBC_2.26 {
|
|
|
|
# "quasi-internal" functions
|
|
|
|
_hurd_exec_paths;
|
|
|
|
}
|
2018-01-09 08:36:58 +08:00
|
|
|
GLIBC_2.27 {
|
hurd: take __USE_EXTERN_INLINES into account and restrict inlines
* 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.
2018-01-29 01:43:10 +08:00
|
|
|
# These always existed as inlines but the real functions were not exported.
|
|
|
|
_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;
|
2018-01-09 08:36:58 +08:00
|
|
|
}
|
2018-11-10 19:33:12 +08:00
|
|
|
GLIBC_2.29 {
|
|
|
|
# "quasi-internal" functions
|
|
|
|
_hurd_port_move;
|
|
|
|
}
|
2000-03-30 Roland McGrath <roland@baalperazim.frob.com>
* 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.
2000-03-31 03:26:35 +08:00
|
|
|
|
|
|
|
HURD_CTHREADS_0.3 {
|
|
|
|
# weak refs to libthreads functions that libc calls iff libthreads in use
|
2020-12-03 17:48:27 +08:00
|
|
|
__cthread_fork; __pthread_create; __cthread_detach; __pthread_detach;
|
hurd: Fix link cthread/pthread symbol exposition.
* 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.
2018-03-18 06:53:39 +08:00
|
|
|
__pthread_getattr_np; __pthread_attr_getstack;
|
2000-03-30 Roland McGrath <roland@baalperazim.frob.com>
* 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.
2000-03-31 03:26:35 +08:00
|
|
|
|
|
|
|
# cthreads functions with stubs in libc
|
hurd: Fix link cthread/pthread symbol exposition.
* 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.
2018-03-18 06:53:39 +08:00
|
|
|
__cthread_keycreate; __cthread_getspecific; __cthread_setspecific;
|
hurd: Reimplement libc locks using mach's gsync
* 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
2018-03-19 01:22:55 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
GLIBC_PRIVATE {
|
|
|
|
# Used by other libs.
|
|
|
|
__lll_abstimed_wait; __lll_abstimed_xwait;
|
|
|
|
__lll_abstimed_lock; __lll_robust_lock;
|
|
|
|
__lll_robust_abstimed_lock; __lll_robust_trylock;
|
|
|
|
__lll_robust_unlock;
|
hurd: Global signal disposition
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.
2019-12-30 00:59:55 +08:00
|
|
|
|
|
|
|
# Used by libpthread.
|
|
|
|
_hurd_sigstate_set_global_rcv;
|
|
|
|
_hurd_sigstate_lock;
|
|
|
|
_hurd_sigstate_pending;
|
|
|
|
_hurd_sigstate_unlock;
|
|
|
|
_hurd_sigstate_delete;
|
2000-03-30 Roland McGrath <roland@baalperazim.frob.com>
* 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.
2000-03-31 03:26:35 +08:00
|
|
|
}
|
1998-07-03 06:51:40 +08:00
|
|
|
}
|