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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.
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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
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* All files with FSF copyright notices: Update copyright dates
using scripts/update-copyrights.
* locale/programs/charmap-kw.h: Regenerated.
* locale/programs/locfile-kw.h: Likewise.
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* All files with FSF copyright notices: Update copyright dates
using scripts/update-copyrights.
* locale/programs/charmap-kw.h: Regenerated.
* locale/programs/locfile-kw.h: Likewise.
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Hide internal signal functions to allow direct access within libc.so and
libc.a without using GOT nor PLT.
__GI___kill and __GI___sigaltstack are defined when syscalls.list is
used to generate them. Otherwise libc_hidden_def is needed explicitly.
[BZ #18822]
* include/signal.h (__kill): Add libc_hidden_proto.
(__sigblock): Likewise.
(__sigprocmask): Likewise.
(__sigaltstack): Likewise.
* signal/kill.c (__kill): Add libc_hidden_def.
* signal/sigblock.c (__sigblock): Likewise.
* signal/sigprocmask.c (__sigprocmask): Likewise.
* sysdeps/mach/hurd/kill.c (__kill): Likewise.
* sysdeps/mach/hurd/sigaltstack.c (__sigaltstack): Likewise.
* sysdeps/mach/hurd/sigprocmask.c (__sigprocmask): Likewise.
* sysdeps/posix/sigblock.c (__sigblock): Likewise.
* sysdeps/unix/sysv/linux/alpha/sigprocmask.c (__sigprocmask):
Likewise.
* sysdeps/unix/sysv/linux/ia64/sigprocmask.c (__sigprocmask):
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sigprocmask.c
(__sigprocmask): Likewise.
* sysdeps/unix/sysv/linux/sigprocmask.c (__sigprocmask):
Likewise.
* /sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c
(__sigprocmask): Likewise.
* sysdeps/unix/sysv/linux/x86_64/sigprocmask.c (__sigprocmask):
Likewise.
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This mostly automatically-generated patch converts 231 sysdeps
function definitions in glibc from old-style K&R to prototype-style.
For __aio_sigqueue and __gai_sigqueue I had to add internal_function
to the definitions as noted by Florian in
<https://sourceware.org/ml/libc-alpha/2015-10/msg00595.html> to keep
the functions compiling on x86 after conversion to prototype
definitions. Otherwise, the patch is automatically generated with all
the same exclusions and caveats as in
<https://sourceware.org/ml/libc-alpha/2015-10/msg00594.html> except
that it's a patch for sysdeps files.
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch). Also tested for arm,
mips64 and powerpc32 that installed stripped shared libraries are
unchanged by the patch.
* sysdeps/arm/backtrace.c (__backtrace): Convert to
prototype-style function definition.
* sysdeps/i386/backtrace.c (__backtrace): Likewise.
* sysdeps/i386/ffs.c (__ffs): Likewise.
* sysdeps/i386/i686/ffs.c (__ffs): Likewise.
* sysdeps/ia64/nptl/pthread_spin_lock.c (pthread_spin_lock):
Likewise.
* sysdeps/ia64/nptl/pthread_spin_trylock.c (pthread_spin_trylock):
Likewise.
* sysdeps/ieee754/ldbl-128/e_log2l.c (__ieee754_log2l): Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_log2l.c (__ieee754_log2l):
Likewise.
* sysdeps/m68k/ffs.c (__ffs): Likewise.
* sysdeps/m68k/m680x0/fpu/e_acos.c (FUNC): Likewise.
* sysdeps/m68k/m680x0/fpu/e_fmod.c (FUNC): Likewise.
* sysdeps/mach/adjtime.c (__adjtime): Likewise.
* sysdeps/mach/gettimeofday.c (__gettimeofday): Likewise.
* sysdeps/mach/hurd/_exit.c (_exit): Likewise.
* sysdeps/mach/hurd/access.c (__access): Likewise.
* sysdeps/mach/hurd/adjtime.c (__adjtime): Likewise.
* sysdeps/mach/hurd/chdir.c (__chdir): Likewise.
* sysdeps/mach/hurd/chmod.c (__chmod): Likewise.
* sysdeps/mach/hurd/chown.c (__chown): Likewise.
* sysdeps/mach/hurd/cthreads.c (cthread_keycreate): Likewise.
(cthread_getspecific): Likewise.
(cthread_setspecific): Likewise.
(__libc_getspecific): Likewise.
* sysdeps/mach/hurd/euidaccess.c (__euidaccess): Likewise.
* sysdeps/mach/hurd/faccessat.c (faccessat): Likewise.
* sysdeps/mach/hurd/fchdir.c (__fchdir): Likewise.
* sysdeps/mach/hurd/fchmod.c (__fchmod): Likewise.
* sysdeps/mach/hurd/fchmodat.c (fchmodat): Likewise.
* sysdeps/mach/hurd/fchown.c (__fchown): Likewise.
* sysdeps/mach/hurd/fchownat.c (fchownat): Likewise.
* sysdeps/mach/hurd/flock.c (__flock): Likewise.
* sysdeps/mach/hurd/fsync.c (fsync): Likewise.
* sysdeps/mach/hurd/ftruncate.c (__ftruncate): Likewise.
* sysdeps/mach/hurd/getgroups.c (__getgroups): Likewise.
* sysdeps/mach/hurd/gethostname.c (__gethostname): Likewise.
* sysdeps/mach/hurd/getitimer.c (__getitimer): Likewise.
* sysdeps/mach/hurd/getlogin_r.c (__getlogin_r): Likewise.
* sysdeps/mach/hurd/getpgid.c (__getpgid): Likewise.
* sysdeps/mach/hurd/getrusage.c (__getrusage): Likewise.
* sysdeps/mach/hurd/getsockname.c (__getsockname): Likewise.
* sysdeps/mach/hurd/group_member.c (__group_member): Likewise.
* sysdeps/mach/hurd/isatty.c (__isatty): Likewise.
* sysdeps/mach/hurd/lchown.c (__lchown): Likewise.
* sysdeps/mach/hurd/link.c (__link): Likewise.
* sysdeps/mach/hurd/linkat.c (linkat): Likewise.
* sysdeps/mach/hurd/listen.c (__listen): Likewise.
* sysdeps/mach/hurd/mkdir.c (__mkdir): Likewise.
* sysdeps/mach/hurd/mkdirat.c (mkdirat): Likewise.
* sysdeps/mach/hurd/openat.c (__openat): Likewise.
* sysdeps/mach/hurd/poll.c (__poll): Likewise.
* sysdeps/mach/hurd/readlink.c (__readlink): Likewise.
* sysdeps/mach/hurd/readlinkat.c (readlinkat): Likewise.
* sysdeps/mach/hurd/recv.c (__recv): Likewise.
* sysdeps/mach/hurd/rename.c (rename): Likewise.
* sysdeps/mach/hurd/renameat.c (renameat): Likewise.
* sysdeps/mach/hurd/revoke.c (revoke): Likewise.
* sysdeps/mach/hurd/rewinddir.c (__rewinddir): Likewise.
* sysdeps/mach/hurd/rmdir.c (__rmdir): Likewise.
* sysdeps/mach/hurd/seekdir.c (seekdir): Likewise.
* sysdeps/mach/hurd/send.c (__send): Likewise.
* sysdeps/mach/hurd/setdomain.c (setdomainname): Likewise.
* sysdeps/mach/hurd/setegid.c (setegid): Likewise.
* sysdeps/mach/hurd/seteuid.c (seteuid): Likewise.
* sysdeps/mach/hurd/setgid.c (__setgid): Likewise.
* sysdeps/mach/hurd/setgroups.c (setgroups): Likewise.
* sysdeps/mach/hurd/sethostid.c (sethostid): Likewise.
* sysdeps/mach/hurd/sethostname.c (sethostname): Likewise.
* sysdeps/mach/hurd/setlogin.c (setlogin): Likewise.
* sysdeps/mach/hurd/setpgid.c (__setpgid): Likewise.
* sysdeps/mach/hurd/setregid.c (__setregid): Likewise.
* sysdeps/mach/hurd/setreuid.c (__setreuid): Likewise.
* sysdeps/mach/hurd/settimeofday.c (__settimeofday): Likewise.
* sysdeps/mach/hurd/setuid.c (__setuid): Likewise.
* sysdeps/mach/hurd/shutdown.c (shutdown): Likewise.
* sysdeps/mach/hurd/sigaction.c (__sigaction): Likewise.
* sysdeps/mach/hurd/sigaltstack.c (__sigaltstack): Likewise.
* sysdeps/mach/hurd/sigpending.c (sigpending): Likewise.
* sysdeps/mach/hurd/sigprocmask.c (__sigprocmask): Likewise.
* sysdeps/mach/hurd/sigsuspend.c (__sigsuspend): Likewise.
* sysdeps/mach/hurd/socket.c (__socket): Likewise.
* sysdeps/mach/hurd/symlink.c (__symlink): Likewise.
* sysdeps/mach/hurd/symlinkat.c (symlinkat): Likewise.
* sysdeps/mach/hurd/telldir.c (telldir): Likewise.
* sysdeps/mach/hurd/truncate.c (__truncate): Likewise.
* sysdeps/mach/hurd/umask.c (__umask): Likewise.
* sysdeps/mach/hurd/unlink.c (__unlink): Likewise.
* sysdeps/mach/hurd/unlinkat.c (unlinkat): Likewise.
* sysdeps/mips/mips64/__longjmp.c (__longjmp): Likewise.
* sysdeps/posix/alarm.c (alarm): Likewise.
* sysdeps/posix/cuserid.c (cuserid): Likewise.
* sysdeps/posix/dirfd.c (dirfd): Likewise.
* sysdeps/posix/dup.c (__dup): Likewise.
* sysdeps/posix/dup2.c (__dup2): Likewise.
* sysdeps/posix/euidaccess.c (euidaccess): Likewise.
(main): Likewise.
* sysdeps/posix/flock.c (__flock): Likewise.
* sysdeps/posix/fpathconf.c (__fpathconf): Likewise.
* sysdeps/posix/getcwd.c (__getcwd): Likewise.
* sysdeps/posix/gethostname.c (__gethostname): Likewise.
* sysdeps/posix/gettimeofday.c (__gettimeofday): Likewise.
* sysdeps/posix/isatty.c (__isatty): Likewise.
* sysdeps/posix/killpg.c (killpg): Likewise.
* sysdeps/posix/libc_fatal.c (__libc_fatal): Likewise.
* sysdeps/posix/mkfifoat.c (mkfifoat): Likewise.
* sysdeps/posix/raise.c (raise): Likewise.
* sysdeps/posix/remove.c (remove): Likewise.
* sysdeps/posix/rename.c (rename): Likewise.
* sysdeps/posix/rewinddir.c (__rewinddir): Likewise.
* sysdeps/posix/seekdir.c (seekdir): Likewise.
* sysdeps/posix/sigblock.c (__sigblock): Likewise.
* sysdeps/posix/sigignore.c (sigignore): Likewise.
* sysdeps/posix/sigintr.c (siginterrupt): Likewise.
* sysdeps/posix/signal.c (__bsd_signal): Likewise.
* sysdeps/posix/sigset.c (sigset): Likewise.
* sysdeps/posix/sigsuspend.c (__sigsuspend): Likewise.
* sysdeps/posix/sysconf.c (__sysconf): Likewise.
* sysdeps/posix/sysv_signal.c (__sysv_signal): Likewise.
* sysdeps/posix/time.c (time): Likewise.
* sysdeps/posix/ttyname.c (getttyname): Likewise.
(ttyname): Likewise.
* sysdeps/posix/ttyname_r.c (__ttyname_r): Likewise.
* sysdeps/posix/utime.c (utime): Likewise.
* sysdeps/powerpc/fpu/s_isnan.c (__isnan): Likewise.
* sysdeps/powerpc/nptl/pthread_spin_lock.c (pthread_spin_lock):
Likewise.
* sysdeps/powerpc/nptl/pthread_spin_trylock.c
(pthread_spin_trylock): Likewise.
* sysdeps/pthread/aio_error.c (aio_error): Likewise.
* sysdeps/pthread/aio_read.c (aio_read): Likewise.
* sysdeps/pthread/aio_read64.c (aio_read64): Likewise.
* sysdeps/pthread/aio_write.c (aio_write): Likewise.
* sysdeps/pthread/aio_write64.c (aio_write64): Likewise.
* sysdeps/pthread/flockfile.c (__flockfile): Likewise.
* sysdeps/pthread/ftrylockfile.c (__ftrylockfile): Likewise.
* sysdeps/pthread/funlockfile.c (__funlockfile): Likewise.
* sysdeps/pthread/timer_create.c (timer_create): Likewise.
* sysdeps/pthread/timer_getoverr.c (timer_getoverrun): Likewise.
* sysdeps/pthread/timer_gettime.c (timer_gettime): Likewise.
* sysdeps/s390/ffs.c (__ffs): Likewise.
* sysdeps/s390/nptl/pthread_spin_lock.c (pthread_spin_lock):
Likewise.
* sysdeps/s390/nptl/pthread_spin_trylock.c (pthread_spin_trylock):
Likewise.
* sysdeps/sh/nptl/pthread_spin_lock.c (pthread_spin_lock):
Likewise.
* sysdeps/sparc/nptl/pthread_barrier_destroy.c
(pthread_barrier_destroy): Likewise.
* sysdeps/sparc/nptl/pthread_barrier_wait.c
(__pthread_barrier_wait): Likewise.
* sysdeps/sparc/sparc32/e_sqrt.c (__ieee754_sqrt): Likewise.
* sysdeps/sparc/sparc32/pthread_barrier_wait.c
(__pthread_barrier_wait): Likewise.
* sysdeps/sparc/sparc32/sem_init.c (__old_sem_init): Likewise.
* sysdeps/tile/memcmp.c (memcmp_common_alignment): Likewise.
(memcmp_not_common_alignment): Likewise.
(MEMCMP): Likewise.
* sysdeps/tile/wordcopy.c (_wordcopy_fwd_aligned): Likewise.
(_wordcopy_fwd_dest_aligned): Likewise.
(_wordcopy_bwd_aligned): Likewise.
(_wordcopy_bwd_dest_aligned): Likewise.
* sysdeps/unix/bsd/ftime.c (ftime): Likewise.
* sysdeps/unix/bsd/gtty.c (gtty): Likewise.
* sysdeps/unix/bsd/stty.c (stty): Likewise.
* sysdeps/unix/bsd/tcflow.c (tcflow): Likewise.
* sysdeps/unix/bsd/tcflush.c (tcflush): Likewise.
* sysdeps/unix/bsd/tcgetattr.c (__tcgetattr): Likewise.
* sysdeps/unix/bsd/tcgetpgrp.c (tcgetpgrp): Likewise.
* sysdeps/unix/bsd/tcsendbrk.c (tcsendbreak): Likewise.
* sysdeps/unix/bsd/tcsetattr.c (tcsetattr): Likewise.
* sysdeps/unix/bsd/tcsetpgrp.c (tcsetpgrp): Likewise.
* sysdeps/unix/bsd/ualarm.c (ualarm): Likewise.
* sysdeps/unix/bsd/wait3.c (__wait3): Likewise.
* sysdeps/unix/getlogin_r.c (__getlogin_r): Likewise.
* sysdeps/unix/sockatmark.c (sockatmark): Likewise.
* sysdeps/unix/stime.c (stime): Likewise.
* sysdeps/unix/sysv/linux/_exit.c (_exit): Likewise.
* sysdeps/unix/sysv/linux/aio_sigqueue.c (__aio_sigqueue):
Likewise. Use internal_function.
* sysdeps/unix/sysv/linux/arm/sigaction.c (__libc_sigaction):
Convert to prototype-style function definition.
* sysdeps/unix/sysv/linux/faccessat.c (faccessat): Likewise.
* sysdeps/unix/sysv/linux/fchmodat.c (fchmodat): Likewise.
* sysdeps/unix/sysv/linux/fpathconf.c (__fpathconf): Likewise.
* sysdeps/unix/sysv/linux/gai_sigqueue.c (__gai_sigqueue):
Likewise. Use internal_function.
* sysdeps/unix/sysv/linux/gethostid.c (sethostid): Convert to
prototype-style function definition
* sysdeps/unix/sysv/linux/getlogin_r.c (__getlogin_r_loginuid):
Likewise.
(__getlogin_r): Likewise.
* sysdeps/unix/sysv/linux/getpt.c (__posix_openpt): Likewise.
* sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c
(__pthread_cond_broadcast): Likewise.
* sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c
(__pthread_cond_destroy): Likewise.
* sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c
(__pthread_cond_init): Likewise.
* sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c
(__pthread_cond_signal): Likewise.
* sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c
(__pthread_cond_wait): Likewise.
* sysdeps/unix/sysv/linux/i386/getmsg.c (getmsg): Likewise.
* sysdeps/unix/sysv/linux/i386/setegid.c (setegid): Likewise.
* sysdeps/unix/sysv/linux/ia64/sigaction.c (__libc_sigaction):
Likewise.
* sysdeps/unix/sysv/linux/ia64/sigpending.c (sigpending):
Likewise.
* sysdeps/unix/sysv/linux/ia64/sigprocmask.c (__sigprocmask):
Likewise.
* sysdeps/unix/sysv/linux/mips/sigaction.c (__libc_sigaction):
Likewise.
* sysdeps/unix/sysv/linux/msgget.c (msgget): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/ftruncate64.c
(__ftruncate64): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/truncate64.c
(truncate64): Likewise.
* sysdeps/unix/sysv/linux/pt-raise.c (raise): Likewise.
* sysdeps/unix/sysv/linux/pthread_getcpuclockid.c
(pthread_getcpuclockid): Likewise.
* sysdeps/unix/sysv/linux/pthread_getname.c (pthread_getname_np):
Likewise.
* sysdeps/unix/sysv/linux/pthread_setname.c (pthread_setname_np):
Likewise.
* sysdeps/unix/sysv/linux/pthread_sigmask.c (pthread_sigmask):
Likewise.
* sysdeps/unix/sysv/linux/pthread_sigqueue.c (pthread_sigqueue):
Likewise.
* sysdeps/unix/sysv/linux/raise.c (raise): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sigaction.c
(__libc_sigaction): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sigpending.c (sigpending):
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sigprocmask.c
(__sigprocmask): Likewise.
* sysdeps/unix/sysv/linux/semget.c (semget): Likewise.
* sysdeps/unix/sysv/linux/semop.c (semop): Likewise.
* sysdeps/unix/sysv/linux/setrlimit64.c (setrlimit64): Likewise.
* sysdeps/unix/sysv/linux/shmat.c (shmat): Likewise.
* sysdeps/unix/sysv/linux/shmdt.c (shmdt): Likewise.
* sysdeps/unix/sysv/linux/shmget.c (shmget): Likewise.
* sysdeps/unix/sysv/linux/sigaction.c (__libc_sigaction):
Likewise.
* sysdeps/unix/sysv/linux/sigpending.c (sigpending): Likewise.
* sysdeps/unix/sysv/linux/sigprocmask.c (__sigprocmask): Likewise.
* sysdeps/unix/sysv/linux/sigqueue.c (__sigqueue): Likewise.
* sysdeps/unix/sysv/linux/sigstack.c (sigstack): Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/sigpending.c (sigpending):
Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c
(__sigprocmask): Likewise.
* sysdeps/unix/sysv/linux/speed.c (cfgetospeed): Likewise.
(cfgetispeed): Likewise.
(cfsetospeed): Likewise.
(cfsetispeed): Likewise.
* sysdeps/unix/sysv/linux/tcflow.c (tcflow): Likewise.
* sysdeps/unix/sysv/linux/tcflush.c (tcflush): Likewise.
* sysdeps/unix/sysv/linux/tcgetattr.c (__tcgetattr): Likewise.
* sysdeps/unix/sysv/linux/tcsetattr.c (tcsetattr): Likewise.
* sysdeps/unix/sysv/linux/time.c (time): Likewise.
* sysdeps/unix/sysv/linux/timer_create.c (timer_create): Likewise.
* sysdeps/unix/sysv/linux/timer_delete.c (timer_delete): Likewise.
* sysdeps/unix/sysv/linux/timer_getoverr.c (timer_getoverrun):
Likewise.
* sysdeps/unix/sysv/linux/timer_gettime.c (timer_gettime):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/sigpending.c (sigpending):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/sigprocmask.c (__sigprocmask):
Likewise.
* sysdeps/x86_64/backtrace.c (__backtrace): Likewise.
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__sigisemptyset. Don't use MASK uninitialized.
* sysdeps/mach/hurd/sigprocmask.c (__sigprocmask): Use __sigorset.
* hurd/hurdinit.c (_hurd_new_proc_init): Use __sigisemptyset.
* hurd/hurdsig.c (_hurd_internal_post_signal): Use __sigismember,
__sigdelset, __sigaddset, __sigorset.
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2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
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1997-05-26 22:51 Ulrich Drepper <drepper@cygnus.com>
* configure.in: Use AC_PROG_CC_LOCAL instead of AC_PROC_CC.
* aclocal.m4: Add AC_PROG_CC_LOCAL which does not fail for
environments in which linking is not possible at configure time
(since te libc is just build).
Based on patches by Marcus G. Daniels <marcus@cathcart.sysc.pdx.edu>.
* time/scheck.c (scheck): Make 2nd parameter const.
* time/private.h: Likewise.
1997-05-26 18:58 Ulrich Drepper <drepper@cygnus.com>
* stdlib/random_r.c (__initstate_r): Initialize randomizer type in
state array only at right place.
Reported by Sven Verdoolaege <skimo@breughel.ufsia.ac.be>.
* stdlib/erand48_r.c (__erand48_r): Don't generate numbers in
[0.5,1.0) but really in [0.0, 1.0).
Patch by Oliver Gathmann <gathmann@scar.utoronto.ca>.
1997-05-22 12:50 Eric Delaunay <delaunay@lix.polytechnique.fr>
* shlib-versions: Provide Linux/SPARC defaults.
1997-05-26 15:00 Matthias Urlichs <urlichs@noris.de>
* stdlib/strtod_l.c: Add missing #include <xlocale.h>.
* stdlib/strtof_l.c: Likewise.
* stdlib/strtol_l.c: Likewise.
* stdlib/strtold_l.c: Likewise.
* stdlib/strtoll_l.c: Likewise.
* stdlib/strtoul_l.c: Likewise.
* stdlib/strtoull_l.c: Likewise.
1997-05-26 02:42 Zack Weinberg <zack@rabi.phys.columbia.edu>
* hurd/dtable.c: De-ansidecl-fy.
* math/test-math.c: Likewise.
* signal/tst-signal.c: Likewise.
* stdio/getc.c: Likewise.
* stdio/obstream.c: Likewise.
* stdio/putc.c: Likewise.
* stdio-common/bug1.c: Likewise.
* stdio-common/bug2.c: Likewise.
* stdio-common/bug6.c: Likewise.
* stdio-common/fscanf.c: Likewise.
* stdlib/testsort.c: Likewise.
* string/tester.c: Likewise.
* sysdeps/am29k/ffs.c: Likewise.
* sysdeps/generic/bb_init_func.c: Likewise.
* sysdeps/generic/bcopy.c: Likewise.
* sysdeps/generic/bzero.c: Likewise.
* sysdeps/generic/div.c: Likewise.
* sysdeps/generic/ffs.c: Likewise.
* sysdeps/generic/memccpy.c: Likewise.
* sysdeps/generic/memcpy.c: Likewise.
* sysdeps/generic/memmove.c: Likewise.
* sysdeps/generic/memset.c: Likewise.
* sysdeps/generic/vfork.c: Likewise.
* sysdeps/generic/vtimes.c: Likewise.
* sysdeps/i386/bzero.c: Likewise.
* sysdeps/i386/ffs.c: Likewise.
* sysdeps/i960/ffs.c: Likewise.
* sysdeps/m68k/ffs.c: Likewise.
* sysdeps/m88k/ffs.c: Likewise.
* sysdeps/mach/hurd/_exit.c: Likewise.
* sysdeps/mach/hurd/accept.c: Likewise.
* sysdeps/mach/hurd/access.c: Likewise.
* sysdeps/mach/hurd/adjtime.c: Likewise.
* sysdeps/mach/hurd/bind.c: Likewise.
* sysdeps/mach/hurd/brk.c: Likewise.
* sysdeps/mach/hurd/chdir.c: Likewise.
* sysdeps/mach/hurd/chflags.c: Likewise.
* sysdeps/mach/hurd/chmod.c: Likewise.
* sysdeps/mach/hurd/chown.c: Likewise.
* sysdeps/mach/hurd/chroot.c: Likewise.
* sysdeps/mach/hurd/close.c: Likewise.
* sysdeps/mach/hurd/connect.c: Likewise.
* sysdeps/mach/hurd/defs.c: Likewise.
* sysdeps/mach/hurd/dup2.c: Likewise.
* sysdeps/mach/hurd/execve.c: Likewise.
* sysdeps/mach/hurd/fchdir.c: Likewise.
* sysdeps/mach/hurd/fchflags.c: Likewise.
* sysdeps/mach/hurd/fchmod.c: Likewise.
* sysdeps/mach/hurd/fchown.c: Likewise.
* sysdeps/mach/hurd/fcntl.c: Likewise.
* sysdeps/mach/hurd/fdopen.c: Likewise.
* sysdeps/mach/hurd/flock.c: Likewise.
* sysdeps/mach/hurd/fsync.c: Likewise.
* sysdeps/mach/hurd/ftruncate.c: Likewise.
* sysdeps/mach/hurd/getdtsz.c: Likewise.
* sysdeps/mach/hurd/getegid.c: Likewise.
* sysdeps/mach/hurd/geteuid.c: Likewise.
* sysdeps/mach/hurd/getgid.c: Likewise.
* sysdeps/mach/hurd/getgroups.c: Likewise.
* sysdeps/mach/hurd/gethostid.c: Likewise.
* sysdeps/mach/hurd/gethostname.c: Likewise.
* sysdeps/mach/hurd/getitimer.c: Likewise.
* sysdeps/mach/hurd/getlogin.c: Likewise.
* sysdeps/mach/hurd/getpeername.c: Likewise.
* sysdeps/mach/hurd/getpgid.c: Likewise.
* sysdeps/mach/hurd/getpid.c: Likewise.
* sysdeps/mach/hurd/getppid.c: Likewise.
* sysdeps/mach/hurd/getsockname.c: Likewise.
* sysdeps/mach/hurd/getsockopt.c: Likewise.
* sysdeps/mach/hurd/getuid.c: Likewise.
* sysdeps/mach/hurd/ioctl.c: Likewise.
* sysdeps/mach/hurd/isatty.c: Likewise.
* sysdeps/mach/hurd/link.c: Likewise.
* sysdeps/mach/hurd/listen.c: Likewise.
* sysdeps/mach/hurd/lseek.c: Likewise.
* sysdeps/mach/hurd/mkdir.c: Likewise.
* sysdeps/mach/hurd/open.c: Likewise.
* sysdeps/mach/hurd/pipe.c: Likewise.
* sysdeps/mach/hurd/read.c: Likewise.
* sysdeps/mach/hurd/readlink.c: Likewise.
* sysdeps/mach/hurd/reboot.c: Likewise.
* sysdeps/mach/hurd/recv.c: Likewise.
* sysdeps/mach/hurd/recvfrom.c: Likewise.
* sysdeps/mach/hurd/rename.c: Likewise.
* sysdeps/mach/hurd/rewinddir.c: Likewise.
* sysdeps/mach/hurd/rmdir.c: Likewise.
* sysdeps/mach/hurd/sbrk.c: Likewise.
* sysdeps/mach/hurd/seekdir.c: Likewise.
* sysdeps/mach/hurd/select.c: Likewise.
* sysdeps/mach/hurd/setegid.c: Likewise.
* sysdeps/mach/hurd/seteuid.c: Likewise.
* sysdeps/mach/hurd/setgid.c: Likewise.
* sysdeps/mach/hurd/setgroups.c: Likewise.
* sysdeps/mach/hurd/sethostid.c: Likewise.
* sysdeps/mach/hurd/sethostname.c: Likewise.
* sysdeps/mach/hurd/setlogin.c: Likewise.
* sysdeps/mach/hurd/setpgid.c: Likewise.
* sysdeps/mach/hurd/setregid.c: Likewise.
* sysdeps/mach/hurd/setreuid.c: Likewise.
* sysdeps/mach/hurd/setrlimit.c: Likewise.
* sysdeps/mach/hurd/setsid.c: Likewise.
* sysdeps/mach/hurd/setsockopt.c: Likewise.
* sysdeps/mach/hurd/settimeofday.c: Likewise.
* sysdeps/mach/hurd/setuid.c: Likewise.
* sysdeps/mach/hurd/shutdown.c: Likewise.
* sysdeps/mach/hurd/sigaction.c: Likewise.
* sysdeps/mach/hurd/sigaltstack.c: Likewise.
* sysdeps/mach/hurd/sigpending.c: Likewise.
* sysdeps/mach/hurd/sigprocmask.c: Likewise.
* sysdeps/mach/hurd/sigstack.c: Likewise.
* sysdeps/mach/hurd/sigsuspend.c: Likewise.
* sysdeps/mach/hurd/socket.c: Likewise.
* sysdeps/mach/hurd/socketpair.c: Likewise.
* sysdeps/mach/hurd/stdio_init.c: Likewise.
* sysdeps/mach/hurd/symlink.c: Likewise.
* sysdeps/mach/hurd/sync.c: Likewise.
* sysdeps/mach/hurd/sysd-stdio.c: Likewise.
* sysdeps/mach/hurd/telldir.c: Likewise.
* sysdeps/mach/hurd/truncate.c: Likewise.
* sysdeps/mach/hurd/umask.c: Likewise.
* sysdeps/mach/hurd/unlink.c: Likewise.
* sysdeps/mach/hurd/wait4.c: Likewise.
* sysdeps/mach/hurd/utimes.c: Likewise.
* sysdeps/mach/hurd/write.c: Likewise.
* sysdeps/mach/adjtime.c: Likewise.
* sysdeps/mach/gettimeofday.c: Likewise.
* sysdeps/mach/usleep.c: Likewise.
* sysdeps/mips/__longjmp.c: Likewise.
* sysdeps/posix/clock.c: Likewise.
* sysdeps/posix/ctermid.c: Likewise.
* sysdeps/posix/defs.c: Likewise.
* sysdeps/posix/dup.c: Likewise.
* sysdeps/posix/libc_fatal.c: Likewise.
* sysdeps/posix/stdio_init.c: Likewise.
* sysdeps/rs6000/ffs.c: Likewise.
* sysdeps/sparc/e_sqrt.c: Likewise.
* sysdeps/standalone/i386/force_cpu386/_exit.c: Likewise.
* sysdeps/standalone/i386/force_cpu386/brdinit.c: Likewise.
* sysdeps/standalone/i386/force_cpu386/console.c: Likewise.
* sysdeps/standalone/i960/nindy960/_exit.c: Likewise.
* sysdeps/standalone/i960/nindy960/brdinit.c: Likewise.
* sysdeps/standalone/i960/nindy960/console.c: Likewise.
* sysdeps/standalone/m68k/m68020/mvme136/_exit.c: Likewise.
* sysdeps/standalone/m68k/m68020/mvme136/brdinit.c: Likewise.
* sysdeps/standalone/brk.c: Likewise.
* sysdeps/stub/_exit.c: Likewise.
* sysdeps/stub/brdinit.c: Likewise.
* sysdeps/stub/console.c: Likewise.
* sysdeps/stub/defs.c: Likewise.
* sysdeps/stub/errlist.c: Likewise.
* sysdeps/stub/libc_fatal.c: Likewise.
* sysdeps/stub/siglist.c: Likewise.
* sysdeps/stub/stdio_init.c: Likewise.
* sysdeps/stub/strtsupp.c: Likewise.
* sysdeps/unix/bsd/bsd4.4/tcgetattr.c: Likewise.
* sysdeps/unix/bsd/bsd4.4/tcsetattr.c: Likewise.
* sysdeps/unix/bsd/bsd4.4/wait3.c: Likewise.
* sysdeps/unix/bsd/sun/sunos4/tcflow.c: Likewise.
* sysdeps/unix/bsd/sun/sunos4/tcflush.c: Likewise.
* sysdeps/unix/bsd/sun/sunos4/tcgetattr.c: Likewise.
* sysdeps/unix/bsd/sun/sunos4/tcsendbrk.c: Likewise.
* sysdeps/unix/bsd/sun/sunos4/wait4.c: Likewise.
* sysdeps/unix/bsd/ultrix4/mips/sigvec.c: Likewise.
* sysdeps/unix/bsd/bsdstat.h: Likewise.
* sysdeps/unix/bsd/clock.c: Likewise.
* sysdeps/unix/bsd/gtty.c: Likewise.
* sysdeps/unix/bsd/init-posix.c: Likewise.
* sysdeps/unix/bsd/setgid.c: Likewise.
* sysdeps/unix/bsd/setrgid.c: Likewise.
* sysdeps/unix/bsd/setruid.c: Likewise.
* sysdeps/unix/bsd/setuid.c: Likewise.
* sysdeps/unix/bsd/stty.c: Likewise.
* sysdeps/unix/bsd/telldir.c: Likewise.
* sysdeps/unix/bsd/ualarm.c: Likewise.
* sysdeps/unix/common/glue-ctype.c: Likewise.
* sysdeps/unix/sparc/start.c: Likewise.
* sysdeps/unix/sysv/irix4/fpathconf.c: Likewise.
* sysdeps/unix/sysv/irix4/getgroups.c: Likewise.
* sysdeps/unix/sysv/irix4/getrusage.c: Likewise.
* sysdeps/unix/sysv/irix4/pathconf.c: Likewise.
* sysdeps/unix/sysv/irix4/setgroups.c: Likewise.
* sysdeps/unix/sysv/irix4/sigtramp.c: Likewise.
* sysdeps/unix/sysv/irix4/start.c: Likewise.
* sysdeps/unix/sysv/irix4/sysconf.c: Likewise.
* sysdeps/unix/sysv/sco3.2.4/__setpgid.c: Likewise.
* sysdeps/unix/sysv/sco3.2.4/getgroups.c: Likewise.
* sysdeps/unix/sysv/sysv4/__getpgid.c: Likewise.
* sysdeps/unix/sysv/sysv4/__setpgid.c: Likewise.
* sysdeps/unix/sysv/sysv4/ftruncate.c: Likewise.
* sysdeps/unix/sysv/sysv4/gethostname.c: Likewise.
* sysdeps/unix/sysv/sysv4/getpgid.c: Likewise.
* sysdeps/unix/sysv/sysv4/sethostname.c: Likewise.
* sysdeps/unix/sysv/sysv4/setpgid.c: Likewise.
* sysdeps/unix/sysv/sysv4/setsid.c: Likewise.
* sysdeps/unix/sysv/gethostname.c: Likewise.
* sysdeps/unix/sysv/tcgetpgrp.c: Likewise.
* sysdeps/unix/sysv/tcsetpgrp.c: Likewise.
* sysdeps/unix/alarm.c: Likewise.
* sysdeps/unix/make_errlist.c: Likewise.
* sysdeps/unix/rewinddir.c: Likewise.
* sysdeps/unix/seekdir.c: Likewise.
* sysdeps/unix/time.c: Likewise.
* sysdeps/unix/utime.c: Likewise.
* sysdeps/vax/__longjmp.c: Likewise.
* sysdeps/vax/memccpy.c: Likewise.
* time/strftime.c: Likewise.
1997-05-25 21:57 Miles Bader <miles@gnu.ai.mit.edu>
* argp-parse.c (parser_init): For the special case where no
parsing function is supplied for an argp, propagate its input to
its first child, if any.
* argp.h (struct argp_state): `argp' field renamed to `root_argp'.
* argp-help.c (__argp_state_help, argp_args_usage, hol_help):
Replace references to STATE->argp with STATE->root_argp.
* argp-parse.c (parser_init): Likewise.
1997-05-26 14:17 Ulrich Drepper <drepper@cygnus.com>
* manual/main.texi: Clarify situation for other not supported ports.
Proposed by Andreas Jaeger <aj@arthur.rhein-neckar.de>.
We recommend binutils 2.8.
1997-05-26 12:17 Ulrich Drepper <drepper@cygnus.com>
* netinet/in.h: New file. Wrapper around inet/netinet/in.h.
1997-05-25 09:51 H.J. Lu <hjl@gnu.ai.mit.edu>
* sysdeps/i386/elf/start.S: Change local label "nofini"
to ".Lnofini".
* sysdeps/i386/i386-mcount.S: Use GOT, instead of GOTOFF.
1997-05-24 17:45 H.J. Lu <hjl@gnu.ai.mit.edu>
* gmon/gmon.c (_mcleanup): Free tostruct array allocated in monstartup.
(dl_main): Define _dl_verbose based on DL_WARN environment variable.
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* hurd/hurd-raise.c (_hurd_raise_signal): Pass sigcode in msg_sig_post
rpc.
* hurd/hurdmsg.c (_S_msg_set_environment): Use argz.h functions
instead of _hurd_split_args.
(_S_msg_*_exec_flags): Functions removed.
(_S_msg_startup_dosync): Stub removed.
Sat May 4 02:11:55 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* sysdeps/mach/hurd/ptrace.c: Set _hurdsig_traced instead of
EXEC_TRACED bit in _hurd_exec_flags.
Pass sigcode arg in msg_sig_post_untraced rpc.
* sysdeps/mach/hurd/access.c: Don't pass io port in
auth_user_authenticate rpc.
* posix/sched.h: Fix typos.
* sysdeps/mach/hurd/fork.c: Use new critical section lock.
Clear _hurdsig_traced instead of EXEC_TRACED.
* sysdeps/stub/nanosleep.c (nanosleep): Fix typo.
* wcsmbs/wcstol.c: Find strtol.c in ../stdlib.
* wcsmbs/wcstof.c: Find strtod.c in ../stdlib.
* wcsmbs/wcstod.c: Likewise.
* wcsmbs/wcstold.c: Likewise.
* wcsmbs/wcwidth.h: Find cname-lookup.h in ../wctype.
* string/envz.c (envz_entry): Use const.
(envz_get, envz_remove): Likewise.
(envz_entry): Return char *, not const char *.
* string/envz.h: Fix decl.
* string/argz-create.c: Use const in prototype.
* string/argz-next.c: Likewise.
* sysdeps/mach/hurd/sigprocmask.c: Pass sigcode arg to msg_sig_post.
* sysdeps/mach/hurd/i386/sigreturn.c: Likewise.
* sysdeps/mach/hurd/sigsuspend.c: Likewise.
* sysdeps/mach/hurd/kill.c: Likewise.
* hurd/hurdexec.c (_hurd_exec): Use new critical section lock.
* hurd/catch-exc.c (_S_catch_exception_raise): Likewise.
* hurd/sigunwind.c (_hurdsig_longjmp_from_handler): Likewise.
* hurd/thread-cancel.c (hurd_thread_cancel, hurd_check_cancel):
Likewise.
* sysdeps/mach/hurd/jmp-unwind.c (_longjmp_unwind): Likewise.
* sysdeps/mach/hurd/sigaction.c: Likewise.
* sysdeps/mach/hurd/errnos.awk: Don't use ARGV in comment; it can
change meaninglessly.
* hurd/hurd/signal.h (struct hurd_sigstate): Replace critical section
flag with a spin lock.
(_hurd_critical_section_lock): Use spin_try_lock on that to see if we
get it. No need to take SS->lock at all.
(_hurd_critical_section_unlock): Unlock SS->critical_section_lock
instead of clearing the old flag member.
* hurd/hurdsig.c (_hurd_internal_post_signal): Use spin_lock_locked to
test the critical section state.
* hurd/hurdinit.c (_hurd_init): Set _hurdsig_traced from the intarray.
* hurd/hurdkill.c (_hurd_sig_post): Pass 0 sigcode in msg_sig_post.
* hurd/hurdsig.c (_hurd_internal_post_signal): Test _hurdsig_traced
instead of testing (_hurd_exec_flags & EXEC_TRACED).
(_S_msg_sig_post): Take sigcode arg and pass it through.
(_S_msg_sig_post_untraced): Likewise.
(reauth_proc): Don't pass proc port in auth_user_authenticate.
* hurd/setauth.c (_hurd_setauth): Don't pass object ports in
auth_user_authenticate RPCs, just the one-off rendezvous port.
* hurd/dtable.c (reauth_dtable): Likewise.
* hurd/hurdlookup.c (__hurd_file_name_lookup_retry): Likewise.
* hurd/hurdexec.c (_hurd_exec): Pass 0 flags to file_exec.
Pass sigcode arg to msg_sig_post.
* string/argz.h (argz_create): Use const in prototype.
* hurd/hurdinit.c (_hurd_proc_init): Test _hurdsig_traced instead of
testing (_hurd_exec_flags & EXEC_TRACED).
Pass sigcode arg to msg_sig_post.
* hurd/hurd.h: Declare _hurdsig_traced.
* string/argz.h (__argz_next): Cast ENTRY before returning it.
* hurd/hurd/signal.h (_hurd_critical_section_unlock): Pass sigcode arg
to msg_sig_post.
* hurd/path-lookup.c: New file.
* hurd/Makefile (routines): Add path-lookup.
* hurd/hurd/lookup.h: Declare file_name_path_scan,
hurd_file_name_path_lookup.
* hurd/hurd.h: Declare file_name_path_lookup.
* sysdeps/mach/hurd/select.c: The io_select rpc no longer has a TAG_ID
argument. Instead, use a separate reply port for each RPC and put them
all in a port set to wait for slow replies.
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