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Update.
2003-08-13  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/i386/syscalls.list: Add time syscall.

	* elf/Makefile: Use LC_ALL=C in a few cases where we call external
	text processing tools.

	* sysdeps/pthread/aio_misc.h (struct waitlist): Don't add caller_pid
	element unless BROKEN_THREAD_SIGNALS is defined.
	(struct requestlist): Likewise.
	* sysdeps/pthread/aio_misc.c (__aio_enqueue_request): Don't fill in
	caller_pid of new request unless BROKEN_THREAD_SIGNALS is defined.
	* sysdeps/pthread/aio_suspend.c (aio_suspend): Likewise.
	* sysdeps/pthread/aio_notify.c (__aio_notify_only): Remove caller_pid
	parameter unless BROKEN_THREAD_SIGNALS is defined.  Adjust callers.
	Pass current PID to __aio_sigqueue.
	* sysdeps/pthread/lio_listio.c (lio_listio): Adjust __aio_notify_only
	call.  Don't initialize caller_pid field of waitlist element.
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Ulrich Drepper committed Aug 14, 2003
1 parent bbdef79 commit b61c8ab
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Showing 12 changed files with 83 additions and 11 deletions.
19 changes: 19 additions & 0 deletions ChangeLog
@@ -1,3 +1,22 @@
2003-08-13 Ulrich Drepper <drepper@redhat.com>

* sysdeps/unix/sysv/linux/i386/syscalls.list: Add time syscall.

* elf/Makefile: Use LC_ALL=C in a few cases where we call external
text processing tools.

* sysdeps/pthread/aio_misc.h (struct waitlist): Don't add caller_pid
element unless BROKEN_THREAD_SIGNALS is defined.
(struct requestlist): Likewise.
* sysdeps/pthread/aio_misc.c (__aio_enqueue_request): Don't fill in
caller_pid of new request unless BROKEN_THREAD_SIGNALS is defined.
* sysdeps/pthread/aio_suspend.c (aio_suspend): Likewise.
* sysdeps/pthread/aio_notify.c (__aio_notify_only): Remove caller_pid
parameter unless BROKEN_THREAD_SIGNALS is defined. Adjust callers.
Pass current PID to __aio_sigqueue.
* sysdeps/pthread/lio_listio.c (lio_listio): Adjust __aio_notify_only
call. Don't initialize caller_pid field of waitlist element.

2003-08-12 Jakub Jelinek <jakub@redhat.com>

* libio/libioP.h (_IO_vtable_offset): Define.
Expand Down
13 changes: 8 additions & 5 deletions elf/Makefile
Expand Up @@ -221,22 +221,24 @@ $(objpfx)librtld.map: $(objpfx)dl-allobjs.os $(common-objpfx)libc_pic.a
mv -f $@T $@

$(objpfx)librtld.mk: $(objpfx)librtld.map Makefile
LC_ALL=C \
sed -n 's@^$(common-objpfx)\([^(]*\)(\([^)]*\.os\)) *.*$$@\1 \2@p' \
$< | \
while read lib file; do \
case $$lib in \
libc_pic.a) \
fgrep -l /$$file \
LC_ALL=C fgrep -l /$$file \
$(common-objpfx)stamp.os $(common-objpfx)*/stamp.os | \
LC_ALL=C \
sed 's@^$(common-objpfx)\([^/]*\)/stamp\.os$$@rtld-\1'" +=$$file@"\
;; \
*/*.a) \
echo rtld-$${lib%%/*} += $$file ;; \
*) echo "Wasn't expecting $$lib($$file)" >&2; exit 1 ;; \
esac; \
done > $@T
echo rtld-subdirs = `sed 's/^rtld-\([^ ]*\).*$$/\1/' $@T \
| sort -u` >> $@T
echo rtld-subdirs = `LC_ALL=C sed 's/^rtld-\([^ ]*\).*$$/\1/' $@T \
| LC_ALL=C sort -u` >> $@T
mv -f $@T $@

$(objpfx)rtld-libc.a: $(objpfx)librtld.mk FORCE
Expand All @@ -251,6 +253,7 @@ $(objpfx)ld.so: $(objpfx)librtld.os $(ld-map)
@rm -f $@.lds
$(LINK.o) -nostdlib -nostartfiles -shared \
$(LDFLAGS-rtld) -Wl,-z,defs -Wl,--verbose 2>&1 | \
LC_ALL=C \
sed -e '/^=========/,/^=========/!d;/^=========/d' \
-e 's/\. = 0 + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \
> $@.lds
Expand Down Expand Up @@ -317,11 +320,11 @@ endif

ifeq ($(ldd-rewrite-script),no)
define gen-ldd
sed $($(ldd-shell)-ldd-rewrite) < $< > $@.new
LC_ALL=C sed $($(ldd-shell)-ldd-rewrite) < $< > $@.new
endef
else
define gen-ldd
sed $($(ldd-shell)-ldd-rewrite) < $< | sed -f $(ldd-rewrite-script) > $@.new
LC_ALL=C sed $($(ldd-shell)-ldd-rewrite) < $< | LC_ALL=C sed -f $(ldd-rewrite-script) > $@.new
endef
endif

Expand Down
5 changes: 5 additions & 0 deletions linuxthreads/ChangeLog
@@ -1,3 +1,8 @@
2003-08-13 Ulrich Drepper <drepper@redhat.com>

* sysdeps/pthread/Makefile [subdir=rt] (CPPFLAGS): Add
-DBROKEN_THREAD_SIGNALS.

2003-08-11 Steven Munroe <sjmunroe@us.ibm.com>

* manager.c (pthread_start_thread) [!(USE_TLS && HAVE___THREAD)]:
Expand Down
1 change: 1 addition & 0 deletions linuxthreads/sysdeps/pthread/Makefile
@@ -1,5 +1,6 @@
ifeq ($(subdir),rt)
librt-sysdep_routines += timer_routines
CPPFLAGS += -DBROKEN_THREAD_SIGNALS

ifeq (yes,$(build-shared))
$(objpfx)tst-timer: $(objpfx)librt.so $(shared-thread-library)
Expand Down
4 changes: 2 additions & 2 deletions stdio-common/vfprintf.c
Expand Up @@ -78,7 +78,7 @@
if (width > 0) \
done += INTUSE(_IO_padn) (s, (Padchar), width)
# define PUTC(C, F) _IO_putc_unlocked (C, F)
# define ORIENT if (s->_vtable_offset == 0 && _IO_fwide (s, -1) != -1)\
# define ORIENT if (_IO_vtable_offset (s) == 0 && _IO_fwide (s, -1) != -1)\
return -1
# else
# define vfprintf _IO_vfwprintf
Expand Down Expand Up @@ -1267,7 +1267,7 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
/* Check for correct orientation. */
if (
# ifdef USE_IN_LIBIO
s->_vtable_offset == 0 &&
_IO_vtable_offset (s) == 0 &&
# endif
_IO_fwide (s, sizeof (CHAR_T) == 1 ? -1 : 1)
!= (sizeof (CHAR_T) == 1 ? -1 : 1))
Expand Down
2 changes: 1 addition & 1 deletion stdio-common/vfscanf.c
Expand Up @@ -120,7 +120,7 @@
# define ISDIGIT(Ch) isdigit (Ch)
# define ISXDIGIT(Ch) isxdigit (Ch)
# define TOLOWER(Ch) tolower (Ch)
# define ORIENT if (s->_vtable_offset == 0 \
# define ORIENT if (_IO_vtable_offset (s) == 0 \
&& _IO_fwide (s, -1) != -1) \
return EOF

Expand Down
4 changes: 3 additions & 1 deletion sysdeps/pthread/aio_misc.c
@@ -1,5 +1,5 @@
/* Handle general operations.
Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
Copyright (C) 1997,1998,1999,2000,2001,2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
Expand Down Expand Up @@ -328,8 +328,10 @@ __aio_enqueue_request (aiocb_union *aiocbp, int operation)
return NULL;
}
newp->aiocbp = aiocbp;
#ifdef BROKEN_THREAD_SIGNALS
newp->caller_pid = (aiocbp->aiocb.aio_sigevent.sigev_notify == SIGEV_SIGNAL
? getpid () : 0);
#endif
newp->waiting = NULL;

aiocbp->aiocb.__abs_prio = prio;
Expand Down
9 changes: 9 additions & 0 deletions sysdeps/pthread/aio_misc.h
Expand Up @@ -50,9 +50,11 @@ struct waitlist
volatile int *counterp;
/* The next field is used in asynchronous `lio_listio' operations. */
struct sigevent *sigevp;
#ifdef BROKEN_THREAD_SIGNALS
/* XXX See requestlist, it's used to work around the broken signal
handling in Linux. */
pid_t caller_pid;
#endif
};


Expand Down Expand Up @@ -80,9 +82,11 @@ struct requestlist
/* Pointer to the actual data. */
aiocb_union *aiocbp;

#ifdef BROKEN_THREAD_SIGNALS
/* PID of the initiator thread.
XXX This is only necessary for the broken signal handling on Linux. */
pid_t caller_pid;
#endif

/* List of waiting processes. */
struct waitlist *waiting;
Expand Down Expand Up @@ -120,8 +124,13 @@ extern void __aio_notify (struct requestlist *req)
attribute_hidden internal_function;

/* Notify initiator of request. */
#ifdef BROKEN_THREAD_SIGNALS
extern int __aio_notify_only (struct sigevent *sigev, pid_t caller_pid)
attribute_hidden internal_function;
#else
extern int __aio_notify_only (struct sigevent *sigev)
attribute_hidden internal_function;
#endif

/* Send the signal. */
extern int __aio_sigqueue (int sig, const union sigval val, pid_t caller_pid)
Expand Down
22 changes: 20 additions & 2 deletions sysdeps/pthread/aio_notify.c
@@ -1,5 +1,5 @@
/* Notify initiator of AIO request.
Copyright (C) 1997,98,99,2000,01 Free Software Foundation, Inc.
Copyright (C) 1997,98,99,2000,2001,2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
Expand Down Expand Up @@ -45,12 +45,16 @@ notify_func_wrapper (void *arg)

int
internal_function
#ifdef BROKEN_THREAD_SIGNALS
__aio_notify_only (struct sigevent *sigev, pid_t caller_pid)
#else
__aio_notify_only (struct sigevent *sigev)
#endif
{
int result = 0;

/* Send the signal to notify about finished processing of the request. */
if (sigev->sigev_notify == SIGEV_THREAD)
if (__builtin_expect (sigev->sigev_notify == SIGEV_THREAD, 0))
{
/* We have to start a thread. */
pthread_t tid;
Expand Down Expand Up @@ -91,9 +95,15 @@ __aio_notify_only (struct sigevent *sigev, pid_t caller_pid)
#if _POSIX_REALTIME_SIGNALS
/* Note that the standard gives us the option of using a plain
non-queuing signal here when SA_SIGINFO is not set for the signal. */
# ifdef BROKEN_THREAD_SIGNALS
if (__aio_sigqueue (sigev->sigev_signo, sigev->sigev_value, caller_pid)
< 0)
result = -1;
# else
if (__aio_sigqueue (sigev->sigev_signo, sigev->sigev_value, getpid ())
< 0)
result = -1;
# endif
#else
/* There are no queued signals on this system at all. */
result = raise (sigev->sigev_signo);
Expand All @@ -111,7 +121,11 @@ __aio_notify (struct requestlist *req)
struct waitlist *waitlist;
struct aiocb *aiocbp = &req->aiocbp->aiocb;

#ifdef BROKEN_THREAD_SIGNALS
if (__aio_notify_only (&aiocbp->aio_sigevent, req->caller_pid) != 0)
#else
if (__aio_notify_only (&aiocbp->aio_sigevent) != 0)
#endif
{
/* XXX What shall we do if already an error is set by
read/write/fsync? */
Expand All @@ -135,7 +149,11 @@ __aio_notify (struct requestlist *req)
this request is the last one, send the signal. */
if (*waitlist->counterp == 0)
{
#ifdef BROKEN_THREAD_SIGNALS
__aio_notify_only (waitlist->sigevp, waitlist->caller_pid);
#else
__aio_notify_only (waitlist->sigevp);
#endif
/* This is tricky. See lio_listio.c for the reason why
this works. */
free ((void *) waitlist->counterp);
Expand Down
2 changes: 2 additions & 0 deletions sysdeps/pthread/aio_suspend.c
Expand Up @@ -115,7 +115,9 @@ aio_suspend (list, nent, timeout)
waitlist[cnt].next = requestlist[cnt]->waiting;
waitlist[cnt].counterp = &dummy;
waitlist[cnt].sigevp = NULL;
#ifdef BROKEN_THREAD_SIGNALS
waitlist[cnt].caller_pid = 0; /* Not needed. */
#endif
requestlist[cnt]->waiting = &waitlist[cnt];
any = true;
}
Expand Down
12 changes: 12 additions & 0 deletions sysdeps/pthread/lio_listio.c
Expand Up @@ -100,8 +100,14 @@ lio_listio (mode, list, nent, sig)
pthread_mutex_unlock (&__aio_requests_mutex);

if (mode == LIO_NOWAIT)
{
#ifdef BROKEN_THREAD_SIGNALS
__aio_notify_only (sig,
sig->sigev_notify == SIGEV_SIGNAL ? getpid () : 0);
#else
__aio_notify_only (sig);
#endif
}

return result;
}
Expand All @@ -122,7 +128,9 @@ lio_listio (mode, list, nent, sig)
waitlist[cnt].next = requests[cnt]->waiting;
waitlist[cnt].counterp = &total;
waitlist[cnt].sigevp = NULL;
#ifdef BROKEN_THREAD_SIGNALS
waitlist[cnt].caller_pid = 0; /* Not needed. */
#endif
requests[cnt]->waiting = &waitlist[cnt];
++total;
}
Expand Down Expand Up @@ -159,7 +167,9 @@ lio_listio (mode, list, nent, sig)
}
else
{
#ifdef BROKEN_THREAD_SIGNALS
pid_t caller_pid = sig->sigev_notify == SIGEV_SIGNAL ? getpid () : 0;
#endif
total = 0;

for (cnt = 0; cnt < nent; ++cnt)
Expand All @@ -173,7 +183,9 @@ lio_listio (mode, list, nent, sig)
waitlist->list[cnt].next = requests[cnt]->waiting;
waitlist->list[cnt].counterp = &waitlist->counter;
waitlist->list[cnt].sigevp = &waitlist->sigev;
#ifdef BROKEN_THREAD_SIGNALS
waitlist->list[cnt].caller_pid = caller_pid;
#endif
requests[cnt]->waiting = &waitlist->list[cnt];
++total;
}
Expand Down
1 change: 1 addition & 0 deletions sysdeps/unix/sysv/linux/i386/syscalls.list
Expand Up @@ -4,3 +4,4 @@ modify_ldt EXTRA modify_ldt i:ipi __modify_ldt modify_ldt
vm86 - vm86 i:p __vm86 vm86
oldgetrlimit EXTRA getrlimit i:ip __old_getrlimit getrlimit@GLIBC_2.0
oldsetrlimit EXTRA setrlimit i:ip __old_setrlimit setrlimit@GLIBC_2.0
time - time Ei:p time

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