1995-02-18 02:27:10 +01:00
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|
|
/* Implementing POSIX.1 signals under the Hurd.
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2019-01-01 01:11:28 +01:00
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|
Copyright (C) 1993-2019 Free Software Foundation, Inc.
|
update from main archive 961217
Wed Dec 18 03:31:58 1996 Ulrich Drepper <drepper@cygnus.com>
* dirent/scandir.c: Undo change from Mon Dec 2 15:32:15 1996.
The stream is private and usages outside glibc don't care about
reentrancy.
* io/fts.c: Likewise.
* io/ftw.c: Likewise.
* sysdeps/posix/getcwd.c: Likewise.
* sysdeps/posix/ttyname.c: Likewise.
* sysdeps/posix/ttyname_r.c: Likewise.
* sysdeps/posix/glob.c: Likewise.
* libio/iovsprintf.c: Add cast to prevent warning.
* libio/iovsscanf.c: Likewise.
* libio/libioP.h: Define mmap to __mmap and munmap to __munmap
to keep namespace clean.
* new-malloc/malloc.c: Update to last version from Wolfram Gloger.
Add hooks and check functions from old GNU malloc.
* new-malloc/malloc.h: Likewise.
* nis/ypclnt.c: Remove prototype for xdr_free.
* snrpc/rpc/xdr.h: Add prototype for xdr_free.
* manual/nss.texi: Correct description of default values and don't
meantion NSS as an add-on.
* nss/grp-lookup.c: Provide default value as
"compat [NOTFOUND=return] files".
* nss/pwd-lookup.c: Likewise.
* nss/spwd-lookup.c: Likewise.
* nss/network-lookup.c: Correct default to
"dns [!UNAVAIL=return] files".
* nss/nsswitch.c: Change default-default value to "nis
[NOTFOUND=return] files" since compat is only available for group,
passwd, and shadow.
* stdlib/on_exit.c (on_exit): Rename to __on_exit and make old name
a weak alias.
* stdlib/stdlib.h: Add prototype for __on_exit.
* sysdeps/unix/sysv/linux/schedbits.h: Add prototype for __clone.
* time/Makefile: Undo change from Sun Dec 8 06:56:49 1996.
The new malloc now has mcheck.
* time/ap.c: Likewise.
* time/tzset.c (__tzset): Rename to __tzset_internal.
(tzset): Rename to __tzset. Make tzset a weak alias for __tzset.
* time/localtime.c: Use __tzset_internal not __tzset.
* time/strftime.c [_LIBC]: Define tzname as __tzname and tzset
as __tzset to prevent namespace pollution.
* wctype/iswctype.h (icwctype): Rename to __iswctype. Make iswctype
a weak alias of __iswctype.
* wctype/wctype.h: Add prototype for __iswctype.
(iswalnum, iswalpha, iswcntrl, iswdigit, iswlower, iswgraph,
iswprint, iswpunct, iswspace, iswupper, iswxdigit, iswblank):
Use __iswctype for the test, not iswctype.
1996-12-16 Paul Eggert <eggert@twinsun.com>
* hurd/hurd/sigpreempt.h
(struct hurd_signal_preemptor.preemptor, _hurdsig_preemptors),
hurd/hurd/signal.h (struct hurd_sigstate.preemptors),
hurd/hurdfault.c, hurd/hurdfault.h (_hurdsig_fault_preemptor),
hurd/hurdsig.c (_hurdsig_preempters):
Renamed to fix spelling from `preempter' to `preemptor'.
All uses changed.
1996-12-15 Paul Eggert <eggert@twinsun.com>
* ctime.c (ctime): Return asctime (localtime (t)), as the C
standard requires.
Tue Dec 17 02:05:48 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* sysdeps/mach/libc-lock.h (__libc_lock_trylock): Invert return
value because Mach/cthreads uses the opposite convention from
Posix/glibc.
Mon Dec 16 22:41:01 1996 Ulrich Drepper <drepper@cygnus.com>
* stdio-common/fcloseall.c: Correct test of already_called.
Reported by Thomas Bushnell, n/BSG.
Mon Dec 16 14:52:07 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* mach/lock-intern.h (__mutex_try_lock): New function.
Sun Dec 15 16:33:44 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* termios/sys/ttydefaults.h (TTYDEF_OFLAG): Only use OXTABS if
defined, else XTABS.
(CEOL, CSTATUS): Use _POSIX_VDISABLE if defined.
Sun Dec 15 11:56:19 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/m68k/mremap.S: New file.
* sysdeps/unix/sysv/linux/m68k/Dist: Distribute it.
* sysdeps/unix/sysv/linux/m68k/Makefile (sysdep_routines): Add mremap.
1996-12-18 04:23:47 +01:00
|
|
|
|
This file is part of the GNU C Library.
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
update from main archive 961217
Wed Dec 18 03:31:58 1996 Ulrich Drepper <drepper@cygnus.com>
* dirent/scandir.c: Undo change from Mon Dec 2 15:32:15 1996.
The stream is private and usages outside glibc don't care about
reentrancy.
* io/fts.c: Likewise.
* io/ftw.c: Likewise.
* sysdeps/posix/getcwd.c: Likewise.
* sysdeps/posix/ttyname.c: Likewise.
* sysdeps/posix/ttyname_r.c: Likewise.
* sysdeps/posix/glob.c: Likewise.
* libio/iovsprintf.c: Add cast to prevent warning.
* libio/iovsscanf.c: Likewise.
* libio/libioP.h: Define mmap to __mmap and munmap to __munmap
to keep namespace clean.
* new-malloc/malloc.c: Update to last version from Wolfram Gloger.
Add hooks and check functions from old GNU malloc.
* new-malloc/malloc.h: Likewise.
* nis/ypclnt.c: Remove prototype for xdr_free.
* snrpc/rpc/xdr.h: Add prototype for xdr_free.
* manual/nss.texi: Correct description of default values and don't
meantion NSS as an add-on.
* nss/grp-lookup.c: Provide default value as
"compat [NOTFOUND=return] files".
* nss/pwd-lookup.c: Likewise.
* nss/spwd-lookup.c: Likewise.
* nss/network-lookup.c: Correct default to
"dns [!UNAVAIL=return] files".
* nss/nsswitch.c: Change default-default value to "nis
[NOTFOUND=return] files" since compat is only available for group,
passwd, and shadow.
* stdlib/on_exit.c (on_exit): Rename to __on_exit and make old name
a weak alias.
* stdlib/stdlib.h: Add prototype for __on_exit.
* sysdeps/unix/sysv/linux/schedbits.h: Add prototype for __clone.
* time/Makefile: Undo change from Sun Dec 8 06:56:49 1996.
The new malloc now has mcheck.
* time/ap.c: Likewise.
* time/tzset.c (__tzset): Rename to __tzset_internal.
(tzset): Rename to __tzset. Make tzset a weak alias for __tzset.
* time/localtime.c: Use __tzset_internal not __tzset.
* time/strftime.c [_LIBC]: Define tzname as __tzname and tzset
as __tzset to prevent namespace pollution.
* wctype/iswctype.h (icwctype): Rename to __iswctype. Make iswctype
a weak alias of __iswctype.
* wctype/wctype.h: Add prototype for __iswctype.
(iswalnum, iswalpha, iswcntrl, iswdigit, iswlower, iswgraph,
iswprint, iswpunct, iswspace, iswupper, iswxdigit, iswblank):
Use __iswctype for the test, not iswctype.
1996-12-16 Paul Eggert <eggert@twinsun.com>
* hurd/hurd/sigpreempt.h
(struct hurd_signal_preemptor.preemptor, _hurdsig_preemptors),
hurd/hurd/signal.h (struct hurd_sigstate.preemptors),
hurd/hurdfault.c, hurd/hurdfault.h (_hurdsig_fault_preemptor),
hurd/hurdsig.c (_hurdsig_preempters):
Renamed to fix spelling from `preempter' to `preemptor'.
All uses changed.
1996-12-15 Paul Eggert <eggert@twinsun.com>
* ctime.c (ctime): Return asctime (localtime (t)), as the C
standard requires.
Tue Dec 17 02:05:48 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* sysdeps/mach/libc-lock.h (__libc_lock_trylock): Invert return
value because Mach/cthreads uses the opposite convention from
Posix/glibc.
Mon Dec 16 22:41:01 1996 Ulrich Drepper <drepper@cygnus.com>
* stdio-common/fcloseall.c: Correct test of already_called.
Reported by Thomas Bushnell, n/BSG.
Mon Dec 16 14:52:07 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* mach/lock-intern.h (__mutex_try_lock): New function.
Sun Dec 15 16:33:44 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* termios/sys/ttydefaults.h (TTYDEF_OFLAG): Only use OXTABS if
defined, else XTABS.
(CEOL, CSTATUS): Use _POSIX_VDISABLE if defined.
Sun Dec 15 11:56:19 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/m68k/mremap.S: New file.
* sysdeps/unix/sysv/linux/m68k/Dist: Distribute it.
* sysdeps/unix/sysv/linux/m68k/Makefile (sysdep_routines): Add mremap.
1996-12-18 04:23:47 +01:00
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
2001-07-06 06:58:11 +02:00
|
|
|
|
modify it under the terms of the GNU Lesser General Public
|
|
|
|
|
License as published by the Free Software Foundation; either
|
|
|
|
|
version 2.1 of the License, or (at your option) any later version.
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
update from main archive 961217
Wed Dec 18 03:31:58 1996 Ulrich Drepper <drepper@cygnus.com>
* dirent/scandir.c: Undo change from Mon Dec 2 15:32:15 1996.
The stream is private and usages outside glibc don't care about
reentrancy.
* io/fts.c: Likewise.
* io/ftw.c: Likewise.
* sysdeps/posix/getcwd.c: Likewise.
* sysdeps/posix/ttyname.c: Likewise.
* sysdeps/posix/ttyname_r.c: Likewise.
* sysdeps/posix/glob.c: Likewise.
* libio/iovsprintf.c: Add cast to prevent warning.
* libio/iovsscanf.c: Likewise.
* libio/libioP.h: Define mmap to __mmap and munmap to __munmap
to keep namespace clean.
* new-malloc/malloc.c: Update to last version from Wolfram Gloger.
Add hooks and check functions from old GNU malloc.
* new-malloc/malloc.h: Likewise.
* nis/ypclnt.c: Remove prototype for xdr_free.
* snrpc/rpc/xdr.h: Add prototype for xdr_free.
* manual/nss.texi: Correct description of default values and don't
meantion NSS as an add-on.
* nss/grp-lookup.c: Provide default value as
"compat [NOTFOUND=return] files".
* nss/pwd-lookup.c: Likewise.
* nss/spwd-lookup.c: Likewise.
* nss/network-lookup.c: Correct default to
"dns [!UNAVAIL=return] files".
* nss/nsswitch.c: Change default-default value to "nis
[NOTFOUND=return] files" since compat is only available for group,
passwd, and shadow.
* stdlib/on_exit.c (on_exit): Rename to __on_exit and make old name
a weak alias.
* stdlib/stdlib.h: Add prototype for __on_exit.
* sysdeps/unix/sysv/linux/schedbits.h: Add prototype for __clone.
* time/Makefile: Undo change from Sun Dec 8 06:56:49 1996.
The new malloc now has mcheck.
* time/ap.c: Likewise.
* time/tzset.c (__tzset): Rename to __tzset_internal.
(tzset): Rename to __tzset. Make tzset a weak alias for __tzset.
* time/localtime.c: Use __tzset_internal not __tzset.
* time/strftime.c [_LIBC]: Define tzname as __tzname and tzset
as __tzset to prevent namespace pollution.
* wctype/iswctype.h (icwctype): Rename to __iswctype. Make iswctype
a weak alias of __iswctype.
* wctype/wctype.h: Add prototype for __iswctype.
(iswalnum, iswalpha, iswcntrl, iswdigit, iswlower, iswgraph,
iswprint, iswpunct, iswspace, iswupper, iswxdigit, iswblank):
Use __iswctype for the test, not iswctype.
1996-12-16 Paul Eggert <eggert@twinsun.com>
* hurd/hurd/sigpreempt.h
(struct hurd_signal_preemptor.preemptor, _hurdsig_preemptors),
hurd/hurd/signal.h (struct hurd_sigstate.preemptors),
hurd/hurdfault.c, hurd/hurdfault.h (_hurdsig_fault_preemptor),
hurd/hurdsig.c (_hurdsig_preempters):
Renamed to fix spelling from `preempter' to `preemptor'.
All uses changed.
1996-12-15 Paul Eggert <eggert@twinsun.com>
* ctime.c (ctime): Return asctime (localtime (t)), as the C
standard requires.
Tue Dec 17 02:05:48 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* sysdeps/mach/libc-lock.h (__libc_lock_trylock): Invert return
value because Mach/cthreads uses the opposite convention from
Posix/glibc.
Mon Dec 16 22:41:01 1996 Ulrich Drepper <drepper@cygnus.com>
* stdio-common/fcloseall.c: Correct test of already_called.
Reported by Thomas Bushnell, n/BSG.
Mon Dec 16 14:52:07 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* mach/lock-intern.h (__mutex_try_lock): New function.
Sun Dec 15 16:33:44 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* termios/sys/ttydefaults.h (TTYDEF_OFLAG): Only use OXTABS if
defined, else XTABS.
(CEOL, CSTATUS): Use _POSIX_VDISABLE if defined.
Sun Dec 15 11:56:19 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/m68k/mremap.S: New file.
* sysdeps/unix/sysv/linux/m68k/Dist: Distribute it.
* sysdeps/unix/sysv/linux/m68k/Makefile (sysdep_routines): Add mremap.
1996-12-18 04:23:47 +01:00
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
|
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
2001-07-06 06:58:11 +02:00
|
|
|
|
Lesser General Public License for more details.
|
1995-02-18 02:27:10 +01:00
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|
2001-07-06 06:58:11 +02:00
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
2012-02-10 00:18:22 +01:00
|
|
|
|
License along with the GNU C Library; if not, see
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|
|
|
<http://www.gnu.org/licenses/>. */
|
1995-02-18 02:27:10 +01:00
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#ifndef _HURD_SIGNAL_H
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#define _HURD_SIGNAL_H 1
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#include <features.h>
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2007-07-19 19:21:02 +02:00
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#define __need_size_t
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1995-02-18 02:27:10 +01:00
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#define __need_NULL
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#include <stddef.h>
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#include <mach/mach_types.h>
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#include <mach/port.h>
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#include <mach/message.h>
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#include <hurd/hurd_types.h>
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#include <signal.h>
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#include <errno.h>
|
2018-03-04 03:15:49 +01:00
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#include <bits/types/error_t.h>
|
2018-03-04 03:44:14 +01:00
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#include <bits/types/stack_t.h>
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#include <bits/types/sigset_t.h>
|
2018-03-05 02:17:52 +01:00
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#include <bits/sigaction.h>
|
1995-02-18 02:27:10 +01:00
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#include <hurd/msg.h>
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#include <cthreads.h> /* For `struct mutex'. */
|
2002-02-18 21:57:51 +01:00
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#include <setjmp.h> /* For `jmp_buf'. */
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1995-02-18 02:27:10 +01:00
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#include <spin-lock.h>
|
update from main archive 961217
Wed Dec 18 03:31:58 1996 Ulrich Drepper <drepper@cygnus.com>
* dirent/scandir.c: Undo change from Mon Dec 2 15:32:15 1996.
The stream is private and usages outside glibc don't care about
reentrancy.
* io/fts.c: Likewise.
* io/ftw.c: Likewise.
* sysdeps/posix/getcwd.c: Likewise.
* sysdeps/posix/ttyname.c: Likewise.
* sysdeps/posix/ttyname_r.c: Likewise.
* sysdeps/posix/glob.c: Likewise.
* libio/iovsprintf.c: Add cast to prevent warning.
* libio/iovsscanf.c: Likewise.
* libio/libioP.h: Define mmap to __mmap and munmap to __munmap
to keep namespace clean.
* new-malloc/malloc.c: Update to last version from Wolfram Gloger.
Add hooks and check functions from old GNU malloc.
* new-malloc/malloc.h: Likewise.
* nis/ypclnt.c: Remove prototype for xdr_free.
* snrpc/rpc/xdr.h: Add prototype for xdr_free.
* manual/nss.texi: Correct description of default values and don't
meantion NSS as an add-on.
* nss/grp-lookup.c: Provide default value as
"compat [NOTFOUND=return] files".
* nss/pwd-lookup.c: Likewise.
* nss/spwd-lookup.c: Likewise.
* nss/network-lookup.c: Correct default to
"dns [!UNAVAIL=return] files".
* nss/nsswitch.c: Change default-default value to "nis
[NOTFOUND=return] files" since compat is only available for group,
passwd, and shadow.
* stdlib/on_exit.c (on_exit): Rename to __on_exit and make old name
a weak alias.
* stdlib/stdlib.h: Add prototype for __on_exit.
* sysdeps/unix/sysv/linux/schedbits.h: Add prototype for __clone.
* time/Makefile: Undo change from Sun Dec 8 06:56:49 1996.
The new malloc now has mcheck.
* time/ap.c: Likewise.
* time/tzset.c (__tzset): Rename to __tzset_internal.
(tzset): Rename to __tzset. Make tzset a weak alias for __tzset.
* time/localtime.c: Use __tzset_internal not __tzset.
* time/strftime.c [_LIBC]: Define tzname as __tzname and tzset
as __tzset to prevent namespace pollution.
* wctype/iswctype.h (icwctype): Rename to __iswctype. Make iswctype
a weak alias of __iswctype.
* wctype/wctype.h: Add prototype for __iswctype.
(iswalnum, iswalpha, iswcntrl, iswdigit, iswlower, iswgraph,
iswprint, iswpunct, iswspace, iswupper, iswxdigit, iswblank):
Use __iswctype for the test, not iswctype.
1996-12-16 Paul Eggert <eggert@twinsun.com>
* hurd/hurd/sigpreempt.h
(struct hurd_signal_preemptor.preemptor, _hurdsig_preemptors),
hurd/hurd/signal.h (struct hurd_sigstate.preemptors),
hurd/hurdfault.c, hurd/hurdfault.h (_hurdsig_fault_preemptor),
hurd/hurdsig.c (_hurdsig_preempters):
Renamed to fix spelling from `preempter' to `preemptor'.
All uses changed.
1996-12-15 Paul Eggert <eggert@twinsun.com>
* ctime.c (ctime): Return asctime (localtime (t)), as the C
standard requires.
Tue Dec 17 02:05:48 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* sysdeps/mach/libc-lock.h (__libc_lock_trylock): Invert return
value because Mach/cthreads uses the opposite convention from
Posix/glibc.
Mon Dec 16 22:41:01 1996 Ulrich Drepper <drepper@cygnus.com>
* stdio-common/fcloseall.c: Correct test of already_called.
Reported by Thomas Bushnell, n/BSG.
Mon Dec 16 14:52:07 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* mach/lock-intern.h (__mutex_try_lock): New function.
Sun Dec 15 16:33:44 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* termios/sys/ttydefaults.h (TTYDEF_OFLAG): Only use OXTABS if
defined, else XTABS.
(CEOL, CSTATUS): Use _POSIX_VDISABLE if defined.
Sun Dec 15 11:56:19 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/m68k/mremap.S: New file.
* sysdeps/unix/sysv/linux/m68k/Dist: Distribute it.
* sysdeps/unix/sysv/linux/m68k/Makefile (sysdep_routines): Add mremap.
1996-12-18 04:23:47 +01:00
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|
struct hurd_signal_preemptor; /* <hurd/sigpreempt.h> */
|
2018-01-28 19:36:29 +01:00
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|
#if defined __USE_EXTERN_INLINES && defined _LIBC
|
2018-01-29 22:17:11 +01:00
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# if IS_IN (libc) || IS_IN (libpthread)
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# include <sigsetops.h>
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# endif
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2018-01-28 19:36:29 +01:00
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#endif
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1995-02-18 02:27:10 +01:00
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1996-05-07 16:57:38 +02:00
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/* Full details of a signal. */
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struct hurd_signal_detail
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{
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/* Codes from origination Mach exception_raise message. */
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integer_t exc, exc_code, exc_subcode;
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/* Sigcode as passed or computed from exception codes. */
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integer_t code;
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/* Error code as passed or extracted from exception codes. */
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error_t error;
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};
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1995-02-18 02:27:10 +01:00
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/* Per-thread signal state. */
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struct hurd_sigstate
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{
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1996-05-04 11:46:57 +02:00
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spin_lock_t critical_section_lock; /* Held if in critical section. */
|
1995-02-18 02:27:10 +01:00
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1996-05-04 11:46:57 +02:00
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spin_lock_t lock; /* Locks most of the rest of the structure. */
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1995-02-18 02:27:10 +01:00
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thread_t thread;
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struct hurd_sigstate *next; /* Linked-list of thread sigstates. */
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|
|
|
|
|
|
|
sigset_t blocked; /* What signals are blocked. */
|
|
|
|
|
sigset_t pending; /* Pending signals, possibly blocked. */
|
2018-03-04 03:44:14 +01:00
|
|
|
|
struct sigaction actions[_NSIG];
|
2017-06-05 12:17:46 +02:00
|
|
|
|
stack_t sigaltstack;
|
1996-01-02 09:57:42 +01:00
|
|
|
|
|
update from main archive 961217
Wed Dec 18 03:31:58 1996 Ulrich Drepper <drepper@cygnus.com>
* dirent/scandir.c: Undo change from Mon Dec 2 15:32:15 1996.
The stream is private and usages outside glibc don't care about
reentrancy.
* io/fts.c: Likewise.
* io/ftw.c: Likewise.
* sysdeps/posix/getcwd.c: Likewise.
* sysdeps/posix/ttyname.c: Likewise.
* sysdeps/posix/ttyname_r.c: Likewise.
* sysdeps/posix/glob.c: Likewise.
* libio/iovsprintf.c: Add cast to prevent warning.
* libio/iovsscanf.c: Likewise.
* libio/libioP.h: Define mmap to __mmap and munmap to __munmap
to keep namespace clean.
* new-malloc/malloc.c: Update to last version from Wolfram Gloger.
Add hooks and check functions from old GNU malloc.
* new-malloc/malloc.h: Likewise.
* nis/ypclnt.c: Remove prototype for xdr_free.
* snrpc/rpc/xdr.h: Add prototype for xdr_free.
* manual/nss.texi: Correct description of default values and don't
meantion NSS as an add-on.
* nss/grp-lookup.c: Provide default value as
"compat [NOTFOUND=return] files".
* nss/pwd-lookup.c: Likewise.
* nss/spwd-lookup.c: Likewise.
* nss/network-lookup.c: Correct default to
"dns [!UNAVAIL=return] files".
* nss/nsswitch.c: Change default-default value to "nis
[NOTFOUND=return] files" since compat is only available for group,
passwd, and shadow.
* stdlib/on_exit.c (on_exit): Rename to __on_exit and make old name
a weak alias.
* stdlib/stdlib.h: Add prototype for __on_exit.
* sysdeps/unix/sysv/linux/schedbits.h: Add prototype for __clone.
* time/Makefile: Undo change from Sun Dec 8 06:56:49 1996.
The new malloc now has mcheck.
* time/ap.c: Likewise.
* time/tzset.c (__tzset): Rename to __tzset_internal.
(tzset): Rename to __tzset. Make tzset a weak alias for __tzset.
* time/localtime.c: Use __tzset_internal not __tzset.
* time/strftime.c [_LIBC]: Define tzname as __tzname and tzset
as __tzset to prevent namespace pollution.
* wctype/iswctype.h (icwctype): Rename to __iswctype. Make iswctype
a weak alias of __iswctype.
* wctype/wctype.h: Add prototype for __iswctype.
(iswalnum, iswalpha, iswcntrl, iswdigit, iswlower, iswgraph,
iswprint, iswpunct, iswspace, iswupper, iswxdigit, iswblank):
Use __iswctype for the test, not iswctype.
1996-12-16 Paul Eggert <eggert@twinsun.com>
* hurd/hurd/sigpreempt.h
(struct hurd_signal_preemptor.preemptor, _hurdsig_preemptors),
hurd/hurd/signal.h (struct hurd_sigstate.preemptors),
hurd/hurdfault.c, hurd/hurdfault.h (_hurdsig_fault_preemptor),
hurd/hurdsig.c (_hurdsig_preempters):
Renamed to fix spelling from `preempter' to `preemptor'.
All uses changed.
1996-12-15 Paul Eggert <eggert@twinsun.com>
* ctime.c (ctime): Return asctime (localtime (t)), as the C
standard requires.
Tue Dec 17 02:05:48 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* sysdeps/mach/libc-lock.h (__libc_lock_trylock): Invert return
value because Mach/cthreads uses the opposite convention from
Posix/glibc.
Mon Dec 16 22:41:01 1996 Ulrich Drepper <drepper@cygnus.com>
* stdio-common/fcloseall.c: Correct test of already_called.
Reported by Thomas Bushnell, n/BSG.
Mon Dec 16 14:52:07 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* mach/lock-intern.h (__mutex_try_lock): New function.
Sun Dec 15 16:33:44 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* termios/sys/ttydefaults.h (TTYDEF_OFLAG): Only use OXTABS if
defined, else XTABS.
(CEOL, CSTATUS): Use _POSIX_VDISABLE if defined.
Sun Dec 15 11:56:19 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/m68k/mremap.S: New file.
* sysdeps/unix/sysv/linux/m68k/Dist: Distribute it.
* sysdeps/unix/sysv/linux/m68k/Makefile (sysdep_routines): Add mremap.
1996-12-18 04:23:47 +01:00
|
|
|
|
/* Chain of thread-local signal preemptors; see <hurd/sigpreempt.h>.
|
1996-01-02 09:57:42 +01:00
|
|
|
|
Each element of this chain is in local stack storage, and the chain
|
|
|
|
|
parallels the stack: the head of this chain is in the innermost
|
|
|
|
|
stack frame, and each next element in an outermore frame. */
|
update from main archive 961217
Wed Dec 18 03:31:58 1996 Ulrich Drepper <drepper@cygnus.com>
* dirent/scandir.c: Undo change from Mon Dec 2 15:32:15 1996.
The stream is private and usages outside glibc don't care about
reentrancy.
* io/fts.c: Likewise.
* io/ftw.c: Likewise.
* sysdeps/posix/getcwd.c: Likewise.
* sysdeps/posix/ttyname.c: Likewise.
* sysdeps/posix/ttyname_r.c: Likewise.
* sysdeps/posix/glob.c: Likewise.
* libio/iovsprintf.c: Add cast to prevent warning.
* libio/iovsscanf.c: Likewise.
* libio/libioP.h: Define mmap to __mmap and munmap to __munmap
to keep namespace clean.
* new-malloc/malloc.c: Update to last version from Wolfram Gloger.
Add hooks and check functions from old GNU malloc.
* new-malloc/malloc.h: Likewise.
* nis/ypclnt.c: Remove prototype for xdr_free.
* snrpc/rpc/xdr.h: Add prototype for xdr_free.
* manual/nss.texi: Correct description of default values and don't
meantion NSS as an add-on.
* nss/grp-lookup.c: Provide default value as
"compat [NOTFOUND=return] files".
* nss/pwd-lookup.c: Likewise.
* nss/spwd-lookup.c: Likewise.
* nss/network-lookup.c: Correct default to
"dns [!UNAVAIL=return] files".
* nss/nsswitch.c: Change default-default value to "nis
[NOTFOUND=return] files" since compat is only available for group,
passwd, and shadow.
* stdlib/on_exit.c (on_exit): Rename to __on_exit and make old name
a weak alias.
* stdlib/stdlib.h: Add prototype for __on_exit.
* sysdeps/unix/sysv/linux/schedbits.h: Add prototype for __clone.
* time/Makefile: Undo change from Sun Dec 8 06:56:49 1996.
The new malloc now has mcheck.
* time/ap.c: Likewise.
* time/tzset.c (__tzset): Rename to __tzset_internal.
(tzset): Rename to __tzset. Make tzset a weak alias for __tzset.
* time/localtime.c: Use __tzset_internal not __tzset.
* time/strftime.c [_LIBC]: Define tzname as __tzname and tzset
as __tzset to prevent namespace pollution.
* wctype/iswctype.h (icwctype): Rename to __iswctype. Make iswctype
a weak alias of __iswctype.
* wctype/wctype.h: Add prototype for __iswctype.
(iswalnum, iswalpha, iswcntrl, iswdigit, iswlower, iswgraph,
iswprint, iswpunct, iswspace, iswupper, iswxdigit, iswblank):
Use __iswctype for the test, not iswctype.
1996-12-16 Paul Eggert <eggert@twinsun.com>
* hurd/hurd/sigpreempt.h
(struct hurd_signal_preemptor.preemptor, _hurdsig_preemptors),
hurd/hurd/signal.h (struct hurd_sigstate.preemptors),
hurd/hurdfault.c, hurd/hurdfault.h (_hurdsig_fault_preemptor),
hurd/hurdsig.c (_hurdsig_preempters):
Renamed to fix spelling from `preempter' to `preemptor'.
All uses changed.
1996-12-15 Paul Eggert <eggert@twinsun.com>
* ctime.c (ctime): Return asctime (localtime (t)), as the C
standard requires.
Tue Dec 17 02:05:48 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* sysdeps/mach/libc-lock.h (__libc_lock_trylock): Invert return
value because Mach/cthreads uses the opposite convention from
Posix/glibc.
Mon Dec 16 22:41:01 1996 Ulrich Drepper <drepper@cygnus.com>
* stdio-common/fcloseall.c: Correct test of already_called.
Reported by Thomas Bushnell, n/BSG.
Mon Dec 16 14:52:07 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* mach/lock-intern.h (__mutex_try_lock): New function.
Sun Dec 15 16:33:44 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* termios/sys/ttydefaults.h (TTYDEF_OFLAG): Only use OXTABS if
defined, else XTABS.
(CEOL, CSTATUS): Use _POSIX_VDISABLE if defined.
Sun Dec 15 11:56:19 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/m68k/mremap.S: New file.
* sysdeps/unix/sysv/linux/m68k/Dist: Distribute it.
* sysdeps/unix/sysv/linux/m68k/Makefile (sysdep_routines): Add mremap.
1996-12-18 04:23:47 +01:00
|
|
|
|
struct hurd_signal_preemptor *preemptors;
|
1996-01-02 09:57:42 +01:00
|
|
|
|
|
1996-05-07 16:57:38 +02:00
|
|
|
|
/* For each signal that may be pending, the details to deliver it with. */
|
2018-03-04 03:44:14 +01:00
|
|
|
|
struct hurd_signal_detail pending_data[_NSIG];
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
|
|
|
|
/* If `suspended' is set when this thread gets a signal,
|
|
|
|
|
the signal thread sends an empty message to it. */
|
|
|
|
|
mach_port_t suspended;
|
|
|
|
|
|
|
|
|
|
/* The following members are not locked. They are used only by this
|
|
|
|
|
thread, or by the signal thread with this thread suspended. */
|
|
|
|
|
|
|
|
|
|
volatile mach_port_t intr_port; /* Port interruptible RPC was sent on. */
|
|
|
|
|
|
|
|
|
|
/* If this is not null, the thread is in sigreturn awaiting delivery of
|
|
|
|
|
pending signals. This context (the machine-dependent portions only)
|
|
|
|
|
will be passed to sigreturn after running the handler for a pending
|
|
|
|
|
signal, instead of examining the thread state. */
|
|
|
|
|
struct sigcontext *context;
|
Mon Mar 27 02:23:15 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* posix/unistd.h [__USE_BSD] (ttyslot): Declare it.
* posix/unistd.h [__USE_BSD] (L_SET, L_INCR, L_XTND): Define
unless L_SET already defined.
* misc/sys/file.h (L_SET, L_INCR, L_XTND): Don't define if L_SET
already defined.
Incorporated -lutil library from 4.4-Lite.
* misc/Makefile (extra-libs, libutil-routines): New variables.
* misc/login.c, misc/login_tty.c, misc/logout.c, misc/logwtmp.c,
sysdeps/generic/pty.c: New files for -lutil incorporated from 4.4-Lite.
Support simple, light-weight unwind-protect mechanism for longjmp.
* setjmp/longjmp.c: Call _longjmp_unwind first thing.
* sysdeps/mach/hurd/jmp-unwind.c: New file.
* sysdeps/stub/jmp-unwind.c: New file.
* sysdeps/i386/jmp_buf.h (_JMPBUF_UNWINDS): New macro.
* sysdeps/mips/jmp_buf.h (_JMPBUF_UNWINDS): New macro.
* setjmp/Makefile (routines): Add jmp-unwind.
* hurd/hurd/userlink.h (struct hurd_userlink): Move `next' and
`prevp' members into new substructure `resource'; add another such
substructure `thread' and members `cleanup' (function ptr) and
`cleanup_data' (generic ptr).
(_hurd_userlink_link, _hurd_userlink_unlink): Insert/remove LINK
into the `_hurd_self_sigstate ()->active_resources' list via the
`thread' substructure.
* hurd/hurd/port.h (_hurd_port_cleanup): Declare it.
(_hurd_port_locked_get): Set LINK->cleanup to _hurd_port_cleanup and
LINK->cleanup_data' to the port extracted.
* hurd/hurd/signal.h (struct hurd_sigstate): New member
`active_resources'.
* hurd/port-cleanup.c: New file.
* hurd/Makefile (routines): Add port-cleanup.
* malloc/malloc.c: Include errno.h.
Sat Mar 25 18:24:21 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* locale/loadlocale.c (_nl_load_locale): Avoid */ inside comment.
1995-03-27 12:00:09 +02:00
|
|
|
|
|
|
|
|
|
/* This is the head of the thread's list of active resources; see
|
|
|
|
|
<hurd/userlink.h> for details. This member is only used by the
|
|
|
|
|
thread itself, and always inside a critical section. */
|
|
|
|
|
struct hurd_userlink *active_resources;
|
1995-08-15 00:49:23 +02:00
|
|
|
|
|
1995-08-22 22:53:23 +02:00
|
|
|
|
/* These are locked normally. */
|
|
|
|
|
int cancel; /* Flag set by hurd_thread_cancel. */
|
|
|
|
|
void (*cancel_hook) (void); /* Called on cancellation. */
|
1995-02-18 02:27:10 +01:00
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Linked list of states of all threads whose state has been asked for. */
|
|
|
|
|
|
|
|
|
|
extern struct hurd_sigstate *_hurd_sigstates;
|
|
|
|
|
|
|
|
|
|
extern struct mutex _hurd_siglock; /* Locks _hurd_sigstates. */
|
|
|
|
|
|
|
|
|
|
/* Get the sigstate of a given thread, taking its lock. */
|
|
|
|
|
|
|
|
|
|
extern struct hurd_sigstate *_hurd_thread_sigstate (thread_t);
|
|
|
|
|
|
|
|
|
|
/* Get the sigstate of the current thread.
|
|
|
|
|
This uses a per-thread variable to optimize the lookup. */
|
1995-06-14 19:15:57 +02:00
|
|
|
|
|
|
|
|
|
extern struct hurd_sigstate *_hurd_self_sigstate (void)
|
|
|
|
|
/* This declaration tells the compiler that the value is constant.
|
|
|
|
|
We assume this won't be called twice from the same stack frame
|
|
|
|
|
by different threads. */
|
|
|
|
|
__attribute__ ((__const__));
|
|
|
|
|
|
1999-06-25 16:50:51 +02:00
|
|
|
|
#ifndef _HURD_SIGNAL_H_EXTERN_INLINE
|
2007-03-17 18:04:28 +01:00
|
|
|
|
#define _HURD_SIGNAL_H_EXTERN_INLINE __extern_inline
|
1999-06-25 16:50:51 +02:00
|
|
|
|
#endif
|
|
|
|
|
|
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.
2018-01-28 18:43:10 +01:00
|
|
|
|
#if defined __USE_EXTERN_INLINES && defined _LIBC
|
2018-01-29 22:17:11 +01:00
|
|
|
|
# if IS_IN (libc)
|
1999-06-25 16:50:51 +02:00
|
|
|
|
_HURD_SIGNAL_H_EXTERN_INLINE struct hurd_sigstate *
|
1995-02-18 02:27:10 +01:00
|
|
|
|
_hurd_self_sigstate (void)
|
|
|
|
|
{
|
hurd: Replace threadvars with TLS
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.
2018-03-17 23:27:34 +01:00
|
|
|
|
if (THREAD_SELF->_hurd_sigstate == NULL)
|
|
|
|
|
THREAD_SELF->_hurd_sigstate = _hurd_thread_sigstate (__mach_thread_self ());
|
|
|
|
|
return THREAD_SELF->_hurd_sigstate;
|
1995-02-18 02:27:10 +01:00
|
|
|
|
}
|
2018-01-29 22:17:11 +01:00
|
|
|
|
# endif
|
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.
2018-01-28 18:43:10 +01:00
|
|
|
|
#endif
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
|
|
|
|
/* Thread listening on our message port; also called the "signal thread". */
|
|
|
|
|
|
|
|
|
|
extern thread_t _hurd_msgport_thread;
|
|
|
|
|
|
|
|
|
|
/* Our message port. We hold the receive right and _hurd_msgport_thread
|
|
|
|
|
listens for messages on it. We also hold a send right, for convenience. */
|
|
|
|
|
|
|
|
|
|
extern mach_port_t _hurd_msgport;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Thread to receive process-global signals. */
|
|
|
|
|
|
|
|
|
|
extern thread_t _hurd_sigthread;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Resource limit on core file size. Enforced by hurdsig.c. */
|
|
|
|
|
extern int _hurd_core_limit;
|
|
|
|
|
|
|
|
|
|
/* Critical sections.
|
|
|
|
|
|
|
|
|
|
A critical section is a section of code which cannot safely be interrupted
|
|
|
|
|
to run a signal handler; for example, code that holds any lock cannot be
|
|
|
|
|
interrupted lest the signal handler try to take the same lock and
|
|
|
|
|
deadlock result. */
|
|
|
|
|
|
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.
2018-01-28 18:43:10 +01:00
|
|
|
|
extern void *_hurd_critical_section_lock (void);
|
|
|
|
|
|
|
|
|
|
#if defined __USE_EXTERN_INLINES && defined _LIBC
|
2018-01-29 22:17:11 +01:00
|
|
|
|
# if IS_IN (libc)
|
1999-06-25 16:50:51 +02:00
|
|
|
|
_HURD_SIGNAL_H_EXTERN_INLINE void *
|
1995-02-18 02:27:10 +01:00
|
|
|
|
_hurd_critical_section_lock (void)
|
|
|
|
|
{
|
hurd: Replace threadvars with TLS
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.
2018-03-17 23:27:34 +01:00
|
|
|
|
struct hurd_sigstate *ss;
|
|
|
|
|
|
|
|
|
|
#ifdef __LIBC_NO_TLS
|
2018-03-18 00:06:19 +01:00
|
|
|
|
if (__LIBC_NO_TLS ())
|
hurd: Replace threadvars with TLS
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.
2018-03-17 23:27:34 +01:00
|
|
|
|
/* TLS is currently initializing, no need to enter critical section. */
|
|
|
|
|
return NULL;
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
ss = THREAD_SELF->_hurd_sigstate;
|
1995-02-18 02:27:10 +01:00
|
|
|
|
if (ss == NULL)
|
|
|
|
|
{
|
1996-05-04 11:46:57 +02:00
|
|
|
|
/* The thread variable is unset; this must be the first time we've
|
|
|
|
|
asked for it. In this case, the critical section flag cannot
|
|
|
|
|
possible already be set. Look up our sigstate structure the slow
|
2015-02-07 22:16:19 +01:00
|
|
|
|
way. */
|
hurd: Replace threadvars with TLS
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.
2018-03-17 23:27:34 +01:00
|
|
|
|
ss = THREAD_SELF->_hurd_sigstate = _hurd_thread_sigstate (__mach_thread_self ());
|
1995-02-18 02:27:10 +01:00
|
|
|
|
}
|
|
|
|
|
|
1996-05-04 11:46:57 +02:00
|
|
|
|
if (! __spin_try_lock (&ss->critical_section_lock))
|
|
|
|
|
/* We are already in a critical section, so do nothing. */
|
|
|
|
|
return NULL;
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
1996-05-04 11:46:57 +02:00
|
|
|
|
/* With the critical section lock held no signal handler will run.
|
|
|
|
|
Return our sigstate pointer; this will be passed to
|
|
|
|
|
_hurd_critical_section_unlock to unlock it. */
|
1995-02-18 02:27:10 +01:00
|
|
|
|
return ss;
|
|
|
|
|
}
|
2018-01-29 22:17:11 +01:00
|
|
|
|
# endif
|
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.
2018-01-28 18:43:10 +01:00
|
|
|
|
#endif
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
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.
2018-01-28 18:43:10 +01:00
|
|
|
|
extern void _hurd_critical_section_unlock (void *our_lock);
|
|
|
|
|
|
|
|
|
|
#if defined __USE_EXTERN_INLINES && defined _LIBC
|
2018-01-29 22:17:11 +01:00
|
|
|
|
# if IS_IN (libc)
|
1999-06-25 16:50:51 +02:00
|
|
|
|
_HURD_SIGNAL_H_EXTERN_INLINE void
|
1995-02-18 02:27:10 +01:00
|
|
|
|
_hurd_critical_section_unlock (void *our_lock)
|
|
|
|
|
{
|
|
|
|
|
if (our_lock == NULL)
|
|
|
|
|
/* The critical section lock was held when we began. Do nothing. */
|
|
|
|
|
return;
|
|
|
|
|
else
|
|
|
|
|
{
|
1996-05-04 11:46:57 +02:00
|
|
|
|
/* It was us who acquired the critical section lock. Unlock it. */
|
2015-02-07 22:39:38 +01:00
|
|
|
|
struct hurd_sigstate *ss = (struct hurd_sigstate *) our_lock;
|
1995-02-18 02:27:10 +01:00
|
|
|
|
sigset_t pending;
|
|
|
|
|
__spin_lock (&ss->lock);
|
1996-05-04 11:46:57 +02:00
|
|
|
|
__spin_unlock (&ss->critical_section_lock);
|
1995-02-18 02:27:10 +01:00
|
|
|
|
pending = ss->pending & ~ss->blocked;
|
|
|
|
|
__spin_unlock (&ss->lock);
|
2002-02-18 21:57:51 +01:00
|
|
|
|
if (! __sigisemptyset (&pending))
|
1995-02-18 02:27:10 +01:00
|
|
|
|
/* There are unblocked signals pending, which weren't
|
|
|
|
|
delivered because we were in the critical section.
|
|
|
|
|
Tell the signal thread to deliver them now. */
|
1996-05-04 11:46:57 +02:00
|
|
|
|
__msg_sig_post (_hurd_msgport, 0, 0, __mach_task_self ());
|
1995-02-18 02:27:10 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
2018-01-29 22:17:11 +01:00
|
|
|
|
# endif
|
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.
2018-01-28 18:43:10 +01:00
|
|
|
|
#endif
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
|
|
|
|
/* Convenient macros for simple uses of critical sections.
|
|
|
|
|
These two must be used as a pair at the same C scoping level. */
|
|
|
|
|
|
|
|
|
|
#define HURD_CRITICAL_BEGIN \
|
|
|
|
|
{ void *__hurd_critical__ = _hurd_critical_section_lock ()
|
|
|
|
|
#define HURD_CRITICAL_END \
|
|
|
|
|
_hurd_critical_section_unlock (__hurd_critical__); } while (0)
|
|
|
|
|
|
1998-11-11 10:56:51 +01:00
|
|
|
|
/* Initialize the signal code, and start the signal thread.
|
|
|
|
|
Arguments give the "init ints" from exec_startup. */
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
1998-11-11 10:56:51 +01:00
|
|
|
|
extern void _hurdsig_init (const int *intarray, size_t intarraysize);
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
|
|
|
|
/* Initialize proc server-assisted fault recovery for the signal thread. */
|
|
|
|
|
|
|
|
|
|
extern void _hurdsig_fault_init (void);
|
|
|
|
|
|
1996-05-07 16:57:38 +02:00
|
|
|
|
/* Raise a signal as described by SIGNO an DETAIL, on the thread whose
|
|
|
|
|
sigstate SS points to. If SS is a null pointer, this instead affects
|
|
|
|
|
the calling thread. */
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
2015-10-10 16:21:41 +02:00
|
|
|
|
extern int _hurd_raise_signal (struct hurd_sigstate *ss, int signo,
|
|
|
|
|
const struct hurd_signal_detail *detail);
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
|
|
|
|
/* Translate a Mach exception into a signal (machine-dependent). */
|
|
|
|
|
|
Tue May 7 19:00:01 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* string/argz-extract.c: Remove const from decl.
* string/argz.h: Here too.
* Makeconfig (version.mk): Fix regexp in sed cmd.
Depend on $(..)Makeconfig.
* GMP code updated from gmp-2.0 release.
* stdlib/Makefile (mpn-routines): Removed add_1, added inlines.
* sysdeps/generic/add_1.c: File removed.
* stdlib/strtod.c: mp_limb is now mp_limb_t.
* stdlib/fpioconst.c, stdlib/fpioconst.h: Likewise.
* stdio-common/_itoa.c: Likewise.
* stdio-common/printf_fp.c: Likewise.
Don't include ansidecl.h.
* sysdeps/mach/hurd/getcwd.c: Use io_identity instead of io_stat.
* shlib-versions: New file.
* Makerules (soversions.mk): New target, include file generated from
shlib-versions. Moved shared library rules before installation rules.
Rewrote shared library installation rules for versioned libraries.
* math/Makefile (libm.so-version): Variable removed.
* sysdeps/mach/hurd/i386/exc2signal.c: Use struct hurd_signal_detail.
* hurd/report-wait.c (_S_msg_describe_ports): New function.
* configure.in: Add AC_PROG_LN_S check.
* config.make.in (LN_S): New variable.
Sun May 5 03:10:44 1996 Ulrich Drepper <drepper@cygnus.com>
* misc/efgcvt_r.c (ecvt_r): Work aroung gcc bug. gcc does
not know about weak aliases now and optimizes necessary `if'
statement away.
* posix/unistd.h: Add swapoff prototype.
* sysdeps/generic/confname.h: Add even more POSIX.4 symbols.
* sysdeps/posix/fpathconf.c (__fpathconf): Get information
for _PC_PATH_MAX from fstatfs function if available.
* sysdeps/posix/sysconf.c: Add code to handle _SC_AIO_LISTIO_MAX,
_SC_AIO_MAX, _SC_AIO_PRIO_DELTA_MAX, _SC_DELAYTIMER_MAX,
_SC_MQ_OPEN_MAX, _SC_MQ_PRIO_MAX, _SC_RTSIG_MAX,
_SC_SEM_NSEMS_MAX, _SC_SEM_VALUE_MAX, _SC_SIGQUEUE_MAX, and
_SC_TIMER_MAX.
* sysdeps/unix/sysv/sysv4/sysconf.c: Ditto.
* sysdeps/stub/swapoff.c: New file. Stub version for swapoff
function.
* sysdeps/unix/syscalls.list: Add swapoff.
* sysdeps/unix/sysv/linux/Dist: Add sys/acct.h.
* sysdeps/unix/sysv/linux/Makefile [$(subdir) == misc]
(sysdep_routines): Add mount, umount, llseek, setfsgid, setfsuid,
sysinfo, and uselib.
(headers): Add sys/sysinfo.h.
* sysdeps/unix/sysv/linux/gethostid.c: Prevent warning.
* sysdeps/unix/sysv/linux/i386/Makefile [$(subdir) == misc]
(sysdep_routines): Add ioperm, iopl, and vm86.
(headers): Add sys/perm.h and sys/vm86.h.
* sysdeps/unix/sysv/linux/i386/sys/perm.h: New file. Contains
prototypes for iopl and ioperm.
* sysdeps/unix/sysv/linux/i386/sys/vm86.h: New file. Contains
prototype for vm86.
* sysdeps/unix/sysv/linux/i386/syscalls.list: New file. Add
vm86 system call.
* sysdeps/unix/sysv/linux/sys/acct.h: New file. Contains
prototypes for acct function.
* sysdeps/unix/sysv/linux/sys/socket.h: Provide real header
file with prototypes.
* sysdeps/unix/sysv/linux/sys/sysinfo.h: New file. Contains
prototype for sysinfo function.
* sysdeps/unix/sysv/linux/syscalls.list: Add flock, ioperm, iopl,
llseek, setfsgid, setfsuid, sysinfo, and uselib.
* sysdeps/unix/sysv/linux/sysconf.c: Instead of duplicating
posix/sysconf.c now only handle cases different to that
implementation.
Tue May 7 15:08:19 1996 Miles Bader <miles@gnu.ai.mit.edu>
* stdio/linewrap.c (__line_wrap_output): Renamed from lwoutput
(all references changed). Now exported.
* stdio/linewrap.c (struct data): Type deleted (moved to linewrap.h).
(wrap_stream, unwrap_stream, lwclose, lwfileno, lwoutput,
line_wrap_stream, line_unwrap_stream): Use struct line_wrap_data
instead of struct data.
(lwoutput, line_wrap_stream, line_unwrap_stream): Rename various
occurences of `wrap' and `wrapmargin' to `wmargin'.
(line_wrapped, line_wrap_lmargin, line_wrap_set_lmargin,
line_wrap_rmargin, line_wrap_set_rmargin, line_wrap_wmargin,
line_wrap_set_wmargin, line_wrap_point): New functions.
* stdio/linewrap.h: New file.
* stdio/Makefile (headers): Add linewrap.h.
Tue May 7 14:19:12 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* sysdeps/unix/sysv/linux/i386/Makefile: File removed.
* stdio/stdio.h: Remove line_wrap_stream, line_unwap_stream decls.
* sysdeps/unix/sysv/linux/schedbits.h: New file.
Tue May 7 13:47:02 1996 Miles Bader <miles@gnu.ai.mit.edu>
* stdio/linewrap.c (struct data): Make margin fields not-pointers.
(lwoutput): Adjust uses acordingly.
* sysdeps/mach/hurd/fdatasync.c: New file.
* sysdeps/mach/hurd/fsync.c: Pass new flag to file_sync.
* sysdeps/mach/hurd/xmknod.c: Pass new flag to dir_link.
* sysdeps/mach/hurd/symlink.c: Likewise.
* sysdeps/mach/hurd/link.c: Likewise.
* sysdeps/mach/hurd/bind.c: Likewise.
* hurd/hurdsig.c (write_corefile): Likewise.
* hurd/hurdsig.c (write_corefile): Pass cttyid port to crash server.
* sysdeps/mach/hurd/fpathconf.c: RPC takes int pointer, not long int.
* sysdeps/mach/hurd/_exit.c (_hurd_exit): Pass sigcode arg to
proc_mark_exit.
* sysdeps/mach/hurd/dl-sysdep.c (_exit): Likewise.
* sysdeps/mach/hurd/wait4.c: Pass sigcode arg to proc_wait.
* sysdeps/mach/hurd/rename.c: Pass new flag to dir_rename.
* hurd/hurdfault.c (_hurdsig_fault_catch_exception_raise): Use struct
hurd_signal_detail.
* hurd/catch-exc.c (_S_catch_exception_raise): Likewise.
* hurd/hurd-raise.c (_hurd_raise_signal): Likewise.
* sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler):
Likewise.
* sysdeps/mach/hurd/setitimer.c (restart_itimer): Likewise.
* hurd/hurd/signal.h: Fix _hurd_exception2signal prototype.
* hurd/hurdsig.c (write_corefile): Take const struct
hurd_signal_detail * arg. Pass all details to crash_dump_task.
(_hurd_internal_post_signal): Pass DETAIL to write_corefile.
(_hurd_internal_post_signal: suspend): Pass code and error to
proc_mark_stop.
* hurd/hurdprio.c (_hurd_priority_which_map): Pass flags arg to
proc_getprocinfo by reference.
1996-05-08 04:07:47 +02:00
|
|
|
|
extern void _hurd_exception2signal (struct hurd_signal_detail *detail,
|
|
|
|
|
int *signo);
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Make the thread described by SS take the signal described by SIGNO and
|
1996-05-07 16:57:38 +02:00
|
|
|
|
DETAIL. If the process is traced, this will in fact stop with a SIGNO
|
1995-02-18 02:27:10 +01:00
|
|
|
|
as the stop signal unless UNTRACED is nonzero. When the signal can be
|
|
|
|
|
considered delivered, sends a sig_post reply message on REPLY_PORT
|
|
|
|
|
indicating success. SS is not locked. */
|
|
|
|
|
|
|
|
|
|
extern void _hurd_internal_post_signal (struct hurd_sigstate *ss,
|
1996-05-07 16:57:38 +02:00
|
|
|
|
int signo,
|
|
|
|
|
struct hurd_signal_detail *detail,
|
1995-02-18 02:27:10 +01:00
|
|
|
|
mach_port_t reply_port,
|
|
|
|
|
mach_msg_type_name_t reply_port_type,
|
|
|
|
|
int untraced);
|
|
|
|
|
|
|
|
|
|
/* Set up STATE and SS to handle signal SIGNO by running HANDLER. If
|
|
|
|
|
RPC_WAIT is nonzero, the thread needs to wait for a pending RPC to
|
|
|
|
|
finish before running the signal handler. The handler is passed SIGNO,
|
|
|
|
|
SIGCODE, and the returned `struct sigcontext' (which resides on the
|
|
|
|
|
stack the handler will use, and which describes the state of the thread
|
|
|
|
|
encoded in STATE before running the handler). */
|
|
|
|
|
|
|
|
|
|
struct machine_thread_all_state;
|
|
|
|
|
extern struct sigcontext *
|
|
|
|
|
_hurd_setup_sighandler (struct hurd_sigstate *ss, __sighandler_t handler,
|
Tue May 7 19:00:01 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* string/argz-extract.c: Remove const from decl.
* string/argz.h: Here too.
* Makeconfig (version.mk): Fix regexp in sed cmd.
Depend on $(..)Makeconfig.
* GMP code updated from gmp-2.0 release.
* stdlib/Makefile (mpn-routines): Removed add_1, added inlines.
* sysdeps/generic/add_1.c: File removed.
* stdlib/strtod.c: mp_limb is now mp_limb_t.
* stdlib/fpioconst.c, stdlib/fpioconst.h: Likewise.
* stdio-common/_itoa.c: Likewise.
* stdio-common/printf_fp.c: Likewise.
Don't include ansidecl.h.
* sysdeps/mach/hurd/getcwd.c: Use io_identity instead of io_stat.
* shlib-versions: New file.
* Makerules (soversions.mk): New target, include file generated from
shlib-versions. Moved shared library rules before installation rules.
Rewrote shared library installation rules for versioned libraries.
* math/Makefile (libm.so-version): Variable removed.
* sysdeps/mach/hurd/i386/exc2signal.c: Use struct hurd_signal_detail.
* hurd/report-wait.c (_S_msg_describe_ports): New function.
* configure.in: Add AC_PROG_LN_S check.
* config.make.in (LN_S): New variable.
Sun May 5 03:10:44 1996 Ulrich Drepper <drepper@cygnus.com>
* misc/efgcvt_r.c (ecvt_r): Work aroung gcc bug. gcc does
not know about weak aliases now and optimizes necessary `if'
statement away.
* posix/unistd.h: Add swapoff prototype.
* sysdeps/generic/confname.h: Add even more POSIX.4 symbols.
* sysdeps/posix/fpathconf.c (__fpathconf): Get information
for _PC_PATH_MAX from fstatfs function if available.
* sysdeps/posix/sysconf.c: Add code to handle _SC_AIO_LISTIO_MAX,
_SC_AIO_MAX, _SC_AIO_PRIO_DELTA_MAX, _SC_DELAYTIMER_MAX,
_SC_MQ_OPEN_MAX, _SC_MQ_PRIO_MAX, _SC_RTSIG_MAX,
_SC_SEM_NSEMS_MAX, _SC_SEM_VALUE_MAX, _SC_SIGQUEUE_MAX, and
_SC_TIMER_MAX.
* sysdeps/unix/sysv/sysv4/sysconf.c: Ditto.
* sysdeps/stub/swapoff.c: New file. Stub version for swapoff
function.
* sysdeps/unix/syscalls.list: Add swapoff.
* sysdeps/unix/sysv/linux/Dist: Add sys/acct.h.
* sysdeps/unix/sysv/linux/Makefile [$(subdir) == misc]
(sysdep_routines): Add mount, umount, llseek, setfsgid, setfsuid,
sysinfo, and uselib.
(headers): Add sys/sysinfo.h.
* sysdeps/unix/sysv/linux/gethostid.c: Prevent warning.
* sysdeps/unix/sysv/linux/i386/Makefile [$(subdir) == misc]
(sysdep_routines): Add ioperm, iopl, and vm86.
(headers): Add sys/perm.h and sys/vm86.h.
* sysdeps/unix/sysv/linux/i386/sys/perm.h: New file. Contains
prototypes for iopl and ioperm.
* sysdeps/unix/sysv/linux/i386/sys/vm86.h: New file. Contains
prototype for vm86.
* sysdeps/unix/sysv/linux/i386/syscalls.list: New file. Add
vm86 system call.
* sysdeps/unix/sysv/linux/sys/acct.h: New file. Contains
prototypes for acct function.
* sysdeps/unix/sysv/linux/sys/socket.h: Provide real header
file with prototypes.
* sysdeps/unix/sysv/linux/sys/sysinfo.h: New file. Contains
prototype for sysinfo function.
* sysdeps/unix/sysv/linux/syscalls.list: Add flock, ioperm, iopl,
llseek, setfsgid, setfsuid, sysinfo, and uselib.
* sysdeps/unix/sysv/linux/sysconf.c: Instead of duplicating
posix/sysconf.c now only handle cases different to that
implementation.
Tue May 7 15:08:19 1996 Miles Bader <miles@gnu.ai.mit.edu>
* stdio/linewrap.c (__line_wrap_output): Renamed from lwoutput
(all references changed). Now exported.
* stdio/linewrap.c (struct data): Type deleted (moved to linewrap.h).
(wrap_stream, unwrap_stream, lwclose, lwfileno, lwoutput,
line_wrap_stream, line_unwrap_stream): Use struct line_wrap_data
instead of struct data.
(lwoutput, line_wrap_stream, line_unwrap_stream): Rename various
occurences of `wrap' and `wrapmargin' to `wmargin'.
(line_wrapped, line_wrap_lmargin, line_wrap_set_lmargin,
line_wrap_rmargin, line_wrap_set_rmargin, line_wrap_wmargin,
line_wrap_set_wmargin, line_wrap_point): New functions.
* stdio/linewrap.h: New file.
* stdio/Makefile (headers): Add linewrap.h.
Tue May 7 14:19:12 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* sysdeps/unix/sysv/linux/i386/Makefile: File removed.
* stdio/stdio.h: Remove line_wrap_stream, line_unwap_stream decls.
* sysdeps/unix/sysv/linux/schedbits.h: New file.
Tue May 7 13:47:02 1996 Miles Bader <miles@gnu.ai.mit.edu>
* stdio/linewrap.c (struct data): Make margin fields not-pointers.
(lwoutput): Adjust uses acordingly.
* sysdeps/mach/hurd/fdatasync.c: New file.
* sysdeps/mach/hurd/fsync.c: Pass new flag to file_sync.
* sysdeps/mach/hurd/xmknod.c: Pass new flag to dir_link.
* sysdeps/mach/hurd/symlink.c: Likewise.
* sysdeps/mach/hurd/link.c: Likewise.
* sysdeps/mach/hurd/bind.c: Likewise.
* hurd/hurdsig.c (write_corefile): Likewise.
* hurd/hurdsig.c (write_corefile): Pass cttyid port to crash server.
* sysdeps/mach/hurd/fpathconf.c: RPC takes int pointer, not long int.
* sysdeps/mach/hurd/_exit.c (_hurd_exit): Pass sigcode arg to
proc_mark_exit.
* sysdeps/mach/hurd/dl-sysdep.c (_exit): Likewise.
* sysdeps/mach/hurd/wait4.c: Pass sigcode arg to proc_wait.
* sysdeps/mach/hurd/rename.c: Pass new flag to dir_rename.
* hurd/hurdfault.c (_hurdsig_fault_catch_exception_raise): Use struct
hurd_signal_detail.
* hurd/catch-exc.c (_S_catch_exception_raise): Likewise.
* hurd/hurd-raise.c (_hurd_raise_signal): Likewise.
* sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler):
Likewise.
* sysdeps/mach/hurd/setitimer.c (restart_itimer): Likewise.
* hurd/hurd/signal.h: Fix _hurd_exception2signal prototype.
* hurd/hurdsig.c (write_corefile): Take const struct
hurd_signal_detail * arg. Pass all details to crash_dump_task.
(_hurd_internal_post_signal): Pass DETAIL to write_corefile.
(_hurd_internal_post_signal: suspend): Pass code and error to
proc_mark_stop.
* hurd/hurdprio.c (_hurd_priority_which_map): Pass flags arg to
proc_getprocinfo by reference.
1996-05-08 04:07:47 +02:00
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int signo, struct hurd_signal_detail *detail,
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1995-02-18 02:27:10 +01:00
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int rpc_wait, struct machine_thread_all_state *state);
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/* Function run by the signal thread to receive from the signal port. */
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extern void _hurd_msgport_receive (void);
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/* Set up STATE with a thread state that, when resumed, is
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like `longjmp (_hurd_sigthread_fault_env, 1)'. */
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extern void _hurd_initialize_fault_recovery_state (void *state);
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1995-08-15 00:49:23 +02:00
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/* Set up STATE to do the equivalent of `longjmp (ENV, VAL);'. */
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extern void _hurd_longjmp_thread_state (void *state, jmp_buf env, int value);
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1995-02-18 02:27:10 +01:00
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/* Function run for SIGINFO when its action is SIG_DFL and the current
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process is the session leader. */
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extern void _hurd_siginfo_handler (int);
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1996-05-06 23:00:43 +02:00
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/* Replacement for mach_msg used in RPCs to provide Hurd interruption
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semantics. Args are all the same as for mach_msg. intr-rpc.h arranges
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for this version to be used automatically by the RPC stubs the library
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builds in place of the normal mach_msg. */
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error_t _hurd_intr_rpc_mach_msg (mach_msg_header_t *msg,
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mach_msg_option_t option,
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mach_msg_size_t send_size,
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mach_msg_size_t rcv_size,
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mach_port_t rcv_name,
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mach_msg_timeout_t timeout,
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mach_port_t notify);
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1995-02-18 02:27:10 +01:00
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1995-08-15 00:49:23 +02:00
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/* Milliseconds to wait for an interruptible RPC to return after
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`interrupt_operation'. */
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extern mach_msg_timeout_t _hurd_interrupted_rpc_timeout;
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1995-02-18 02:27:10 +01:00
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/* Mask of signals that cannot be caught, blocked, or ignored. */
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#define _SIG_CANT_MASK (__sigmask (SIGSTOP) | __sigmask (SIGKILL))
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/* Do an RPC to a process's message port.
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Each argument is an expression which returns an error code; each
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expression may be evaluated several times. FETCH_MSGPORT_EXPR should
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fetch the appropriate message port and store it in the local variable
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`msgport'; it will be deallocated after use. FETCH_REFPORT_EXPR should
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fetch the appropriate message port and store it in the local variable
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`refport' (if no reference port is needed in the call, then
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FETCH_REFPORT_EXPR should be simply KERN_SUCCESS or 0); if
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DEALLOC_REFPORT evaluates to nonzero it will be deallocated after use,
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otherwise the FETCH_REFPORT_EXPR must take care of user references to
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`refport'. RPC_EXPR should perform the desired RPC operation using
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`msgport' and `refport'.
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The reason for the complexity is that a process's message port and
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reference port may change between fetching those ports and completing an
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RPC using them (usually they change only when a process execs). The RPC
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will fail with MACH_SEND_INVALID_DEST if the msgport dies before we can
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send the RPC request; or with MIG_SERVER_DIED if the msgport was
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destroyed after we sent the RPC request but before it was serviced. In
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either of these cases, we retry the entire operation, discarding the old
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message and reference ports and fetch them anew. */
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#define HURD_MSGPORT_RPC(fetch_msgport_expr, \
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fetch_refport_expr, dealloc_refport, \
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rpc_expr) \
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({ \
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error_t __err; \
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mach_port_t msgport, refport = MACH_PORT_NULL; \
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do \
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{ \
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/* Get the message port. */ \
|
2016-11-27 17:22:22 +01:00
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__err = (error_t) (fetch_msgport_expr); \
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2008-08-13 04:39:55 +02:00
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if (__err) \
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1995-02-18 02:27:10 +01:00
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break; \
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/* Get the reference port. */ \
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2016-11-27 17:22:22 +01:00
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__err = (error_t) (fetch_refport_expr); \
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2008-08-13 04:39:55 +02:00
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if (__err) \
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1995-02-18 02:27:10 +01:00
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{ \
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/* Couldn't get it; deallocate MSGPORT and fail. */ \
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__mach_port_deallocate (__mach_task_self (), msgport); \
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break; \
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} \
|
2016-11-27 17:22:22 +01:00
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__err = (error_t) (rpc_expr); \
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1995-02-18 02:27:10 +01:00
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__mach_port_deallocate (__mach_task_self (), msgport); \
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if ((dealloc_refport) && refport != MACH_PORT_NULL) \
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__mach_port_deallocate (__mach_task_self (), refport); \
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} while (__err == MACH_SEND_INVALID_DEST || \
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__err == MIG_SERVER_DIED); \
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__err; \
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})
|
1995-10-17 10:00:50 +01:00
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1995-02-18 02:27:10 +01:00
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#endif /* hurd/signal.h */
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