2024-01-01 18:12:26 +00:00
|
|
|
/* Copyright (C) 1991-2024 Free Software Foundation, Inc.
|
2007-07-23 00:38:55 +00:00
|
|
|
|
1997-05-26 23:01:17 +00:00
|
|
|
This file is part of the GNU C Library.
|
1995-02-18 01:27:10 +00:00
|
|
|
|
1997-05-26 23:01:17 +00:00
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
2001-07-06 04:58:11 +00:00
|
|
|
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 01:27:10 +00:00
|
|
|
|
1997-05-26 23:01:17 +00:00
|
|
|
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 04:58:11 +00:00
|
|
|
Lesser General Public License for more details.
|
1995-02-18 01:27:10 +00:00
|
|
|
|
2001-07-06 04:58:11 +00:00
|
|
|
You should have received a copy of the GNU Lesser General Public
|
2012-02-09 23:18:22 +00:00
|
|
|
License along with the GNU C Library; if not, see
|
Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
|
|
|
<https://www.gnu.org/licenses/>. */
|
1995-02-18 01:27:10 +00:00
|
|
|
|
|
|
|
|
#include <errno.h>
|
|
|
|
|
#include <hurd.h>
|
|
|
|
|
#include <hurd/signal.h>
|
|
|
|
|
#include <hurd/msg.h>
|
2020-06-28 22:41:18 +00:00
|
|
|
#include <sysdep-cancel.h>
|
1995-02-18 01:27:10 +00:00
|
|
|
|
|
|
|
|
/* Change the set of blocked signals to SET,
|
|
|
|
|
wait until a signal arrives, and restore the set of blocked signals. */
|
|
|
|
|
int
|
2015-10-19 12:04:33 +00:00
|
|
|
__sigsuspend (const sigset_t *set)
|
1995-02-18 01:27:10 +00:00
|
|
|
{
|
|
|
|
|
struct hurd_sigstate *ss;
|
|
|
|
|
sigset_t newmask, oldmask, pending;
|
|
|
|
|
mach_port_t wait;
|
|
|
|
|
mach_msg_header_t msg;
|
2020-06-28 22:41:18 +00:00
|
|
|
int cancel_oldtype;
|
1995-02-18 01:27:10 +00:00
|
|
|
|
|
|
|
|
if (set != NULL)
|
|
|
|
|
/* Crash before locking. */
|
|
|
|
|
newmask = *set;
|
|
|
|
|
|
|
|
|
|
/* Get a fresh port we will wait on. */
|
|
|
|
|
wait = __mach_reply_port ();
|
|
|
|
|
|
|
|
|
|
ss = _hurd_self_sigstate ();
|
|
|
|
|
|
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.
2019-12-29 16:59:55 +00:00
|
|
|
_hurd_sigstate_lock (ss);
|
1995-02-18 01:27:10 +00:00
|
|
|
|
|
|
|
|
oldmask = ss->blocked;
|
|
|
|
|
if (set != NULL)
|
|
|
|
|
/* Change to the new blocked signal mask. */
|
|
|
|
|
ss->blocked = newmask & ~_SIG_CANT_MASK;
|
|
|
|
|
|
|
|
|
|
/* Notice if any pending signals just became unblocked. */
|
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.
2019-12-29 16:59:55 +00:00
|
|
|
pending = _hurd_sigstate_pending (ss) & ~ss->blocked;
|
1995-02-18 01:27:10 +00:00
|
|
|
|
|
|
|
|
/* Tell the signal thread to message us when a signal arrives. */
|
|
|
|
|
ss->suspended = wait;
|
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.
2019-12-29 16:59:55 +00:00
|
|
|
_hurd_sigstate_unlock (ss);
|
1995-02-18 01:27:10 +00:00
|
|
|
|
|
|
|
|
if (pending)
|
|
|
|
|
/* Tell the signal thread to check for pending signals. */
|
1996-05-04 09:46:57 +00:00
|
|
|
__msg_sig_post (_hurd_msgport, 0, 0, __mach_task_self ());
|
1995-02-18 01:27:10 +00:00
|
|
|
|
|
|
|
|
/* Wait for the signal thread's message. */
|
2020-06-28 22:41:18 +00:00
|
|
|
|
|
|
|
|
cancel_oldtype = LIBC_CANCEL_ASYNC();
|
1995-02-18 01:27:10 +00:00
|
|
|
__mach_msg (&msg, MACH_RCV_MSG, 0, sizeof (msg), wait,
|
|
|
|
|
MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL);
|
2020-06-28 22:41:18 +00:00
|
|
|
LIBC_CANCEL_RESET (cancel_oldtype);
|
1995-02-18 01:27:10 +00:00
|
|
|
__mach_port_destroy (__mach_task_self (), wait);
|
|
|
|
|
|
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.
2019-12-29 16:59:55 +00:00
|
|
|
/* Restore the old mask and check for pending signals again. */
|
|
|
|
|
_hurd_sigstate_lock (ss);
|
|
|
|
|
ss->blocked = oldmask;
|
|
|
|
|
pending = _hurd_sigstate_pending(ss) & ~ss->blocked;
|
|
|
|
|
_hurd_sigstate_unlock (ss);
|
1995-02-18 01:27:10 +00:00
|
|
|
|
|
|
|
|
if (pending)
|
|
|
|
|
/* Tell the signal thread to check for pending signals. */
|
1996-05-04 09:46:57 +00:00
|
|
|
__msg_sig_post (_hurd_msgport, 0, 0, __mach_task_self ());
|
|
|
|
|
|
1995-02-18 01:27:10 +00:00
|
|
|
/* We've been interrupted! And a good thing, too.
|
|
|
|
|
Otherwise we'd never return.
|
|
|
|
|
That's right; this function always returns an error. */
|
2023-05-20 11:55:29 +00:00
|
|
|
return __hurd_fail (EINTR);
|
1995-02-18 01:27:10 +00:00
|
|
|
}
|
Update.
2002-08-02 Ulrich Drepper <drepper@redhat.com>
* configure.in (HAVE_BROKEN_ALIAS_ATTRIBUTE): Add check for
broken alias attribute handling.
* config.h.in (HAVE_BROKEN_ALIAS_ATTRIBUTE): Add.
* assert/assert.c (__assert_fail): Fix typo in comment.
* include/rpc/rpc.h: Declare __libc_tsd_RPC_VARS if USE_TLS &&
HAVE___THREAD.
* sunrpc/rpc_thread.c: Don't define __libc_tsd_RPC_VARS as static
if USE_TLS && HAVE___THREAD.
* sunrpc/Versions [libc] (GLIBC_PRIVATE): Export __libc_tsd_RPC_VARS.
2002-08-02 Jakub Jelinek <jakub@redhat.com>
* assert/assert.c (__assert_fail): Remove undef.
Replace INTDEF with libc_hidden_def.
* assert/__assert.c (__assert): Remove INTUSE.
* elf/dl-minimal.c (__assert_fail): Replace INTDEF with
libc_hidden_weak.
* include/libc-symbols.h (hidden_proto, hidden_def, hidden_weak,
hidden_ver, libc_hidden_proto, libc_hidden_def, libc_hidden_weak,
libc_hidden_ver, rtld_hidden_proto, rtld_hidden_def, rtld_hidden_weak,
rltd_hidden_ver, libm_hidden_proto, libm_hidden_def, libm_hidden_weak,
libm_hiden_ver): Define.
* include/assert.h (__assert_fail_internal): Remove.
(__assert_fail): Add prototype. Add hidden_proto.
* include/libc-internal.h (__libc_freeres, __profile_frequency): Add
libc_hidden_proto.
* include/wchar.h (__mbrtowc_internal, __mbrlen_internal): Remove.
(__mbrtowc, __mbrlen): Use libc_hidden_proto. Remove macros.
* include/string.h (__mempcpy, __stpncpy, __rawmemchr, __strcasecmp):
Add libc_hidden_proto.
* include/fcntl.h (__open64, __libc_open, __libc_fcntl, __open,
__fcntl): Add libc_hidden_proto. Remove macros.
(__open_internal, __fcntl_internal): Remove.
* libio/iofdopen.c (_IO_fcntl): Remove INTUSE from __fcntl.
* malloc/set-freeres.c (__libc_freeres): Add libc_hidden_def.
* nss/nsswitch.h (__nss_database_lookup, __nss_next): Add
libc_hiden_proto.
* nss/nsswitch.c (__nss_database_lookup, __nss_next): Add
libc_hidden_def.
* sysdeps/generic/mempcpy.c (__mempcpy): Remove undef.
Add libc_hidden_def.
* sysdeps/generic/open64.c (__open64): Add libc_hidden_def.
* sysdeps/generic/open.c (__open): Remove undef.
Add libc_hidden_def. Remove INTDEF.
* sysdeps/generic/fcntl.c (__fcntl): Remove undef.
Add libc_hidden_def.
* sysdeps/mach/hurd/fcntl.c (__fcntl): Likewise.
* sysdeps/i386/i586/mempcpy.S (__mempcpy): Add libc_hidden_def.
* sysdeps/i386/i686/mempcpy.S (__mempcpy): Likewise.
* sysdeps/mach/hurd/fcntl.c (__libc_fcntl, __fcntl): Remove undef.
(__fcntl): Remove INTDEF2. Add libc_hidden_weak.
(__libc_fcntl): Add libc_hidden_def.
* sysdeps/mach/hurd/open.c (__libc_open, __open): Remove undef.
(__open): Remove INTDEF2. Add libc_hidden_weak.
(__libc_open): Add libc_hidden_def.
* sysdeps/posix/open64.c (__open64): Add libc_hidden_weak.
* sysdeps/standalone/open.c (__open): Add libc_hidden_def.
* sysdeps/unix/sysv/aix/fcntl.c (__libc_fcntl, __fcntl): Remove undef.
Add libc_hidden_def.
* sysdeps/unix/sysv/aix/open.c (__libc_open, __open): Remove undef.
Add libc_hidden_def.
* sysdeps/unix/sysv/linux/i386/fcntl.c (__libc_fcntl, __fcntl): Remove
undef.
(__fcntl): Remove INTDEF2. Add libc_hidden_weak.
(__libc_fcntl): Add libc_hidden_def.
* sysdeps/unix/sysv/linux/syscalls.list (__fcntl_internal,
__getpgid_internal, __chown_internal): Remove.
(__GI___fcntl, __GI___libc_fcntl, __GI___getpgid, __GI___pipe,
__GI___sched_setscheduler, __GI___select, __GI___setpgid,
__GI___chown): Add.
* sysdeps/unix/syscalls.list (__close_internal, __dup2_internal,
__getpid_internal, __open_internal, __write_internal): Remove.
(__GI___fcntl, __GI___libc_fcntl, __GI___open, __GI___libc_open,
__GI___chown, __GI___close, __GI___dup2, __GI___getpid,
__GI___libc_open, __GI___open, __GI___read, __GI___libc_read,
__GI___select, __GI___statfs, __GI___write, __GI___libc_write): Add.
* wcsmbs/mbrlen.c (__mbrlen): Remove undef.
Replace INTDEF with libc_hidden_def.
* wcsmbs/mbrtowc.c (__mbrtowc): Likewise.
* catgets/catgetsinfo.h (__open_catalog): Add libc_hidden_proto.
* catgets/open_catalog.c (__open_catalog): Add libc_hidden_def.
* elf/dl-profile.c (__profile_frequency): Add libc_hidden_proto.
* include/rpc/rpc.h (__rpc_thread_svc_fdset, __rpc_thread_createerr):
Add libc_hidden_proto.
* include/sys/poll.h (__poll): Add libc_hidden_proto.
* include/sys/select.h (__select): Likewise.
* include/sys/socket.h (__send): Likewise.
* include/sys/statfs.h (__statfs): Likewise.
* include/unistd.h (__pwrite64, __libc_read, __pipe, __chown, __dup2,
__getpid, __getpgid, __setpgid, __close, __read, __write,
__getpagesize, __sbrk): Likewise.
(__chown_internal, __dup2_internal, __getpid_internal,
__getpgid_internal, __close_internal, __write_internal,
__getpagesize_internal): Remove.
(__close, __dup2, __getpagesize, __getpgid, __getpid, __libc_write):
Remove macros.
* include/printf.h (__printf_fp): Add libc_hidden_proto.
* include/sched.h (__sched_setscheduler): Likewise.
* include/resolv.h (__res_ninit, __res_randomid): Likewise.
* include/stdlib.h (__secure_getenv): Likewise.
* include/signal.h (__sigaction, __sigsuspend): Likewise.
* inet/getaliasent_r.c (NSS_attribute_hidden): Remove.
* inet/getaliasname_r.c (NSS_attribute_hidden): Remove.
* inet/getnetbyad_r.c (NSS_attribute_hidden): Remove.
* inet/getnetbynm_r.c (NSS_attribute_hidden): Remove.
* inet/getnetent_r.c (NSS_attribute_hidden): Remove.
* inet/getproto_r.c (NSS_attribute_hidden): Remove.
* inet/getprtent_r.c (NSS_attribute_hidden): Remove.
* inet/getprtname_r.c (NSS_attribute_hidden): Remove.
* inet/getrpcbyname_r.c (NSS_attribute_hidden): Remove.
* inet/getrpcbynumber_r.c (NSS_attribute_hidden): Remove.
* inet/getrpcent_r.c (NSS_attribute_hidden): Remove.
* inet/getservent_r.c (NSS_attribute_hidden): Remove.
* inet/getsrvbynm_r.c (NSS_attribute_hidden): Remove.
* inet/getsrvbypt_r.c (NSS_attribute_hidden): Remove.
* inet/gethstbyad_r.c (DB_LOOKUP_FCT): Remove INTUSE.
* inet/gethstbynm2_r.c (DB_LOOKUP_FCT): Likewise.
* inet/gethstbynm_r.c (DB_LOOKUP_FCT): Likewise.
* inet/gethstent_r.c (DB_LOOKUP_FCT): Likewise.
* libio/genops.c (__overflow): Add libc_hidden_def.
* libio/iovdprintf.c: Remove libio.h include.
* libio/libioP.h (libc_hidden_proto, libc_hidden_def,
libc_hidden_weak): Define to nothing if not defined.
(__overflow, __woverflow): Add libc_hidden_proto.
* libio/wgenops.c (__woverflow): Add libc_hidden_def.
* nss/getXXent_r.c (NSS_attribute_hidden): Remove.
(DB_LOOKUP_FCT): Add libc_hidden_proto.
* nss/getXXbyYY_r.c (NSS_attribute_hidden): Remove.
(DB_LOOKUP_FCT): Add libc_hidden_proto.
* nss/XXX-lookup.c (DB_LOOKUP_FCT): Add libc_hidden_proto
and libc_hidden_def.
* nss/hosts-lookup.c (__nss_hosts_lookup): Remove INTDEF.
* posix/bsd-getpgrp.c (__getpgid_internal): Remove.
(__getpgid): Add libc_hidden_proto.
(__bsd_getpgrp): Remove INTUSE.
* resolv/res_init.c (__res_ninit, __res_randomid): Add
libc_hidden_def.
* shadow/getspent_r.c (NSS_attribute_hidden): Remove.
* shadow/getspnam_r.c (NSS_attribute_hidden): Remove.
* stdio-common/printf_fp.c (__printf_fp): Add libc_hidden_def.
* stdlib/strfmon.c (__printf_fp): Add libc_hidden_proto.
* stdlib/secure-getenv.c (__secure_getenv): Add libc_hidden_def.
* sunrpc/rpc_thread.c (__rpc_thread_svc_fdset,
__rpc_thread_createerr): Add libc_hidden_def.
* sysdeps/alpha/alphaev67/rawmemchr.S (__rawmemchr): Add
libc_hidden_def.
* sysdeps/alpha/alphaev67/stpncpy.S (__stpncpy): Likewise.
* sysdeps/alpha/rawmemchr.S (__rawmemchr): Likewise.
* sysdeps/alpha/stpncpy.S (__stpncpy): Likewise.
* sysdeps/generic/chown.c (__chown): Likewise.
* sysdeps/generic/close.c (__close): Likewise.
* sysdeps/generic/dup2.c (__dup2): Likewise.
* sysdeps/generic/pipe.c (__pipe): Likewise.
* sysdeps/generic/prof-freq.c (__profile_frequency): Likewise.
* sysdeps/generic/pwrite64.c (__pwrite64): Likewise.
* sysdeps/generic/rawmemchr.c (__rawmemchr): Likewise.
* sysdeps/generic/read.c (__libc_read): Likewise.
(__read): Add libc_hidden_weak.
* sysdeps/generic/sbrk.c (__sbrk): Add libc_hidden_def.
* sysdeps/generic/sched_sets.c (__sched_setscheduler): Likewise.
* sysdeps/generic/select.c (__select): Likewise.
* sysdeps/generic/send.c (__send): Likewise.
* sysdeps/generic/setpgid.c (__setpgid): Likewise.
* sysdeps/generic/sigaction.c (__sigaction): Likewise.
* sysdeps/generic/sigsuspend.c (__sigsuspend): Likewise.
* sysdeps/generic/statfs.c (__statfs): Likewise.
* sysdeps/generic/stpncpy.c (__stpncpy): Likewise.
* sysdeps/generic/strcasecmp.c (__strcasecmp): Likewise.
* sysdeps/generic/getpagesize.c (__getpagesize): Likewise.
Remove undef and INTDEF.
* sysdeps/generic/getpgid.c (__getpgid): Likewise.
* sysdeps/generic/getpid.c (__getpid): Likewise.
* sysdeps/generic/write.c (__libc_write): Likewise.
(__write): Add libc_hidden_weak. Remove undef and INTDEF.
* sysdeps/i386/rawmemchr.S (__rawmemchr): Add libc_hidden_def.
* sysdeps/i386/stpncpy.S (__stpncpy): Likewise.
* sysdeps/m68k/rawmemchr.S (__rawmemchr): Likewise.
* sysdeps/mach/hurd/chown.c (__chown): Likewise. Remove INTDEF.
* sysdeps/mach/hurd/close.c (__close): Add libc_hidden_def.
Remove undef and INTDEF.
* sysdeps/mach/hurd/dup2.c (__dup2): Likewise.
* sysdeps/mach/hurd/getpgid.c (__getpgid): Likewise.
* sysdeps/mach/hurd/getpid.c (__getpid): Likewise.
* sysdeps/mach/getpagesize.c (__getpagesize): Likewise.
* sysdeps/mach/hurd/write.c (__libc_write): Likewise.
(__write): Add libc_hidden_weak. Remove undef and INTDEF.
* sysdeps/mach/hurd/pipe.c: Include unistd.h.
(__pipe): Add libc_hidden_def.
* sysdeps/mach/hurd/dl-sysdep.c (__libc_read, __libc_write): Add
libc_hidden_weak.
* sysdeps/mach/hurd/poll.c (__poll): Add libc_hidden_def.
* sysdeps/mach/hurd/profil.c (__profile_frequency): Likewise.
* sysdeps/mach/hurd/read.c (__libc_read): Likewise.
(__read): Add libc_hidden_weak.
* sysdeps/mach/hurd/pwrite64.c (__pwrite64): Likewise.
(__libc_pwrite64): Add libc_hidden_def.
* sysdeps/mach/hurd/sbrk.c (__sbrk): Likewise.
* sysdeps/mach/hurd/select.c (__select): Likewise.
* sysdeps/mach/hurd/send.c (__send): Likewise.
* sysdeps/mach/hurd/setpgid.c (__setpgid): Likewise.
* sysdeps/mach/hurd/sigaction.c (__sigaction): Likewise.
* sysdeps/mach/hurd/sigsuspend.c (__sigsuspend): Likewise.
* sysdeps/mach/hurd/statfs.c (__statfs): Likewise.
* sysdeps/posix/dup2.c: Likewise.
Remove undef and INTDEF.
* sysdeps/posix/getpagesize.c (__getpagesize): Likewise.
* sysdeps/posix/pwrite64.c (__libc_pwrite64): Add libc_hidden_def.
(__pwrite64): Add libc_hidden_weak.
* sysdeps/posix/sigsuspend.c (__sigsuspend): Add libc_hidden_def.
* sysdeps/sparc/sparc64/rawmemchr.S (__rawmemchr): Likewise.
* sysdeps/sparc/sparc64/stpncpy.S (__stpncpy): Likewise.
* sysdeps/standalone/close.c (__close): Likewise.
* sysdeps/standalone/write.c (__libc_write): Likewise.
(__write): Add libc_hidden_weak.
* sysdeps/standalone/read.c (__read): Likewise.
(__libc_read): Add libc_hidden_def.
* sysdeps/unix/grantpt.c (grantpt): Remove INTUSE.
* sysdeps/unix/bsd/m68k/pipe.S (__pipe): Add libc_hidden_def.
* sysdeps/unix/bsd/osf/alpha/pipe.S (__pipe): Likewise.
* sysdeps/unix/bsd/vax/pipe.S (__pipe): Likewise.
* sysdeps/unix/bsd/syscalls.list (__GI___getpagesize): Likewise.
* sysdeps/unix/bsd/poll.c (__poll): Likewise.
* sysdeps/unix/bsd/sigaction.c (__sigaction): Likewise.
* sysdeps/unix/bsd/sigsuspend.c (__sigsuspend): Likewise.
* sysdeps/unix/common/syscalls.list (__GI___getpgid, __GI___setpgid,
__GI___sigaction): Add.
* sysdeps/unix/i386/pipe.S (__pipe): Add libc_hidden_def.
* sysdeps/unix/inet/syscalls.list (__GI___send): Add.
* sysdeps/unix/mips/pipe.S (__pipe): Add libc_hidden_def.
* sysdeps/unix/sparc/pipe.S (__pipe): Likewise.
* sysdeps/unix/sysv/irix4/syscalls.list (__GI___getpgid,
__GI___setpgid): Add.
* sysdeps/unix/sysv/aix/chown.c (__chown): Add libc_hidden_def.
Remove undef and INTDEF.
* sysdeps/unix/sysv/aix/getpgid.c (__getpgid): Likewise.
* sysdeps/unix/sysv/aix/write.c (__write, __libc_write): Likewise.
* sysdeps/unix/sysv/aix/close.c (__close): Add libc_hidden_def.
* sysdeps/unix/sysv/aix/getpid.c (__getpid): Likewise.
* sysdeps/unix/sysv/aix/pipe.c (__pipe): Likewise.
* sysdeps/unix/sysv/aix/read.c (__read, __libc_read): Likewise.
* sysdeps/unix/sysv/aix/poll.c (__poll): Likewise.
* sysdeps/unix/sysv/aix/sbrk.c (__sbrk): Likewise.
* sysdeps/unix/sysv/aix/sigaction.c (__sigaction): Likewise.
* sysdeps/unix/sysv/aix/sigsuspend.c (__sigsuspend): Likewise.
* sysdeps/unix/sysv/aix/statfs.c (__statfs): Likewise.
* sysdeps/unix/sysv/aix/select.c (__select): Likewise.
* sysdeps/unix/sysv/aix/setpgid.c (__setpgid): Likewise.
* sysdeps/unix/sysv/linux/alpha/pipe.S (__pipe): Likewise.
* sysdeps/unix/sysv/linux/alpha/syscalls.list (__GI___pwrite64,
__GI___statfs, __GI___send): Add.
* sysdeps/unix/sysv/linux/alpha/select.S (__select): Add
libc_hidden_ver resp. libc_hidden_def.
* sysdeps/unix/sysv/linux/alpha/sigsuspend.S (__sigsuspend): Add
libc_hidden_def.
* sysdeps/unix/sysv/linux/ia64/getpagesize.c (__getpagesize):
Likewise. Remove undef and INTDEF.
* sysdeps/unix/sysv/linux/ia64/pipe.S (__pipe): Add libc_hidden_def.
* sysdeps/unix/sysv/linux/ia64/syscalls.list (__GI___pwrite64,
__GI___statfs, __GI___send): Add.
* sysdeps/unix/sysv/linux/ia64/sigaction.c (__sigaction): Add
libc_hidden_def.
* sysdeps/unix/sysv/linux/ia64/sigsuspend.c (__sigsuspend):
Likewise.
* sysdeps/unix/sysv/linux/sh/pipe.S (__pipe): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/chown.c (__chown): Add
libc_hidden_ver resp. libc_hidden_def.
* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (__GI___pwrite64,
__GI___send): Add.
* sysdeps/unix/sysv/linux/s390/s390-64/sigaction.c (__sigaction):
Add libc_hidden_weak.
* sysdeps/unix/sysv/linux/s390/s390-64/sigsuspend.c (__sigsuspend):
Add libc_hidden_def.
* sysdeps/unix/sysv/linux/hppa/syscalls.list (__GI___send): Add.
* sysdeps/unix/sysv/linux/arm/sigaction.c (__sigaction): Add
libc_hidden_weak.
* sysdeps/unix/sysv/linux/i386/chown.c (__chown): Add libc_hidden_ver
resp. libc_hidden_def.
* sysdeps/unix/sysv/linux/i386/sigaction.c (__sigaction): Add
libc_hidden_weak.
* sysdeps/unix/sysv/linux/m68k/chown.c (__chown): Likewise. Remove
INTDEF.
* sysdeps/unix/sysv/linux/m68k/getpagesize.c (__getpagesize):
Likewise. Remove undef.
* sysdeps/unix/sysv/linux/mips/pwrite64.c (__pwrite64): Add
libc_hidden_weak.
* sysdeps/unix/sysv/linux/mips/syscalls.list (__GI___send): Add.
* sysdeps/unix/sysv/linux/mips/sigaction.c (__sigaction): Add
libc_hidden_weak.
* sysdeps/unix/sysv/linux/powerpc/chown.c (__chown): Add
libc_hidden_def.
* sysdeps/unix/sysv/linux/powerpc/pwrite64.c (__pwrite64): Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/getpagesize.c (__getpagesize):
Likewise. Remove undef and INTDEF.
* sysdeps/unix/sysv/linux/sparc/sparc32/pipe.S (__pipe): Add
libc_hidden_def.
* sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c (__sigaction): Add
libc_hidden_weak.
* sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S (__pipe): Add
libc_hidden_def.
* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list
(__GI___pwrite64, __GI___statfs, __GI___select, __GI___send): Add.
* sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c (__sigaction): Add
libc_hidden_weak.
* sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c (__sigsuspend):
Add libc_hidden_def.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list (__GI___pwrite64,
__GI___statfs): Add.
* sysdeps/unix/sysv/linux/x86_64/send.c (__send): Add
libc_hidden_weak.
* sysdeps/unix/sysv/linux/x86_64/sigaction.c (__sigaction): Likewise.
* sysdeps/unix/sysv/linux/getpagesize.c: Add libc_hidden_def.
Remove undef and INTDEF.
* sysdeps/unix/sysv/linux/poll.c (__poll): Add libc_hidden_def.
* sysdeps/unix/sysv/linux/pwrite64.c (__pwrite64): Add
libc_hidden_def.
* sysdeps/unix/sysv/linux/send.S (__send): Likewise.
* sysdeps/unix/sysv/linux/sigaction.c (__sigaction): Add
libc_hidden_weak.
* sysdeps/unix/sysv/linux/sigsuspend.c (__sigsuspend): Add
libc_hidden_def.
* sysdeps/unix/sysv/sco3.2.4/__setpgid.c (__setpgid): Likewise.
* sysdeps/unix/sysv/sco3.2.4/sigaction.S (__sigaction): Likewise.
* sysdeps/unix/sysv/sysv4/solaris2/syscalls.list (__GI___sigaction):
Add.
* sysdeps/unix/sysv/sysv4/__getpgid.c (__getpgid): Add
libc_hidden_def. Remove undef and INTDEF.
* sysdeps/unix/sysv/sysv4/getpgid.c (__getpgid): Likewise.
* sysdeps/unix/sysv/sysv4/__setpgid.c (__setpgid): Add
libc_hidden_def.
* sysdeps/unix/sysv/sysv4/setpgid.c (__setpgid): Likewise.
* sysdeps/unix/sysv/sysv4/sigaction.c (__sigaction): Likewise.
* sysdeps/unix/sysv/sigaction.c (__sigaction): Likewise.
* sysdeps/unix/getpagesize.c (__getpagesize): Add libc_hidden_def.
Remove undef and INTDEF.
* configure.in (HAVE_BROKEN_VISIBILITY_ATTRIBUTE): Add check for
broken visibility attribute handling.
* config.h.in (HAVE_BROKEN_VISIBILITY_ATTRIBUTE): Add.
2002-08-02 Ulrich Drepper <drepper@redhat.com>
2002-08-03 07:02:10 +00:00
|
|
|
libc_hidden_def (__sigsuspend)
|
Update.
1998-07-20 17:09 Ulrich Drepper <drepper@cygnus.com>
* shlib-versions: Remove definition for libSegFault.
* memory.texi: Comment out the relocating allocator description.
* manual/signal.texi: Remove reference to relocating allocator.
* manual/top-menu.texi: Regenerated.
* posix/fnmatch.c: Implement [: :] and change to recognize
^ as negation only when not _POSIXLY_CORRECT.
* sysdeps/generic/glob.c: Add several optimizations.
* posix/glob.h: Undefine __PMT to prevent warnings.
Reported by Roland McGrath.
* posix/regex.c: Define namespace macros only for _LIBC.
* sysdeps/arm/dl-machine.h: Fix typo.
* sysdeps/unix/sysv/sysv4/solaris2/sigpending.c: New file.
* sysdeps/unix/sysv/sysv4/solaris2/sigstack.c: New file.
* sysdeps/unix/sysv/sysv4/solaris2/sigwaitinfo.c: New file.
* sysdeps/unix/sysv/sysv4/solaris2/syscalls.list: Add sigaltstack,
sigpending, sigqueue, and sigtimedwait.
* sysdeps/unix/sysv/sysv4/solaris2/sparc/sparc32/syscall.S: New file.
* timezone/leapseconds: Update from tzdata1998f.
1998-07-18 Mark Kettenis <kettenis@phys.uva.nl>
* stdio/stdio.h [__USE_GNU]: Add prototype for fputs_unlocked.
* stdio/Versions [GLIBC_2.1]: Add fputs_unlocked.
* libio/stdio.h: Fix typo.
1998-07-19 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/mach/hurd/dl-sysdep.c (_dl_sysdep_start): #if 0 out the
magic memobj port arg parsing stuff. Fix it someday when we are ready
to really use it.
(_dl_sysdep_output): New function, modified from _dl_sysdep_error.
(_dl_sysdep_error, _dl_sysdep_message, _dl_sysdep_fatal): Removed.
1998-07-19 Roland McGrath <roland@baalperazim.frob.com>
* stdio/fputs.c: Add fputs_unlocked as weak alias for fputs.
1998-07-19 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/posix/sigsuspend.c: Define __sigsuspend with sigsuspend as
a weak alias.
* sysdeps/mach/hurd/sigsuspend.c: Likewise.
* sysdeps/generic/sigsuspend.c: Likewise.
1998-07-19 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/mach/hurd/i386/sigcontextinfo.h: New file.
1998-07-19 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makerules (map-file): Don't use $(wildcard) to find the
generated version script, instead look in $(version-maps).
($(common-objpfx)libc.so): Only depend on libc.map if versioning
is used.
* extra-lib.mk ($(objpfx)$(lib).so): Only depend on version script
if versioning is used. Don't use $(wildcard) to find the
generated version script, instead look in $(verson-maps).
1998-07-17 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/generic/segfault.c: Rename GET_EIP to GET_PC. Remove
unused function handle.
* sysdeps/generic/sigcontextinfo.h: Rename GET_EIP to GET_PC.
* sysdeps/unix/sysv/linux/i386/sigcontextinfo.h: Likewise.
* debug/catchsegv.sh: Fix argument processing, quoting and various
typos. Put the crash info always in the current directory. Find
program in $PATH if it contains no directory component.
* Makerules (install-lib.so-versioned,
install-lib.so-unversioned): New variables.
(install-lib-nosubdir): Depend on unversioned libs in
slibdir, not libdir.
1998-07-19 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Make-dist (+tsrcs): Remove references to %-map variables and
*.map files. Add Versions in subdirs.
* Makerules (distinfo-vars): Don't write out %-map variables.
1998-07-20 13:55 Ulrich Drepper <drepper@cygnus.com>
* inet/protocols/rwhod.h: Remove definition of _PATH_RWHODIR.
Include <paths.h> instead.
* sysdeps/generic/paths.h: Define _PATH_RWHODIR.
* sysdeps/unix/sysv/linux/paths.h: Likewise.
Reported by Dale Scheetz <dwarf@polaris.net>.
1998-07-17 21:44 Ulrich Drepper <drepper@cygnus.com>
* catgets/open_catalog.c: Strictly check whether catalog file is
larger enough for the data. Reported by Andries.Brouwer@cwi.nl.
1998-07-20 17:25:48 +00:00
|
|
|
weak_alias (__sigsuspend, sigsuspend)
|
