+2003-06-15 Ulrich Drepper <drepper@redhat.com>
+
+ Fix cancellation point handling wrt exception based cleanup.
+ * io/Makefile: Compile fcntl.c, poll.c, and lockf.c with exceptions.
+ * misc/Makefile: Compile pselect.c, readv.c, writev.c, and usleep.c
+ with exceptions.
+ * posix/Makefile: Compile pread.c, pread64.c, pwrite.c, pwrite64.c,
+ sleep.c, wait.c, waitid.c, and waitpid.c with exceptions.
+ * rt/Makefile: Compile aio_suspend.c and clock_nanosleep.c with
+ exceptions.
+ * signal/Makefile: Compile sigpause.c, sigsuspend.c, sigtimedwait.c,
+ sigwait.c, and sigwaitinfo.c with exceptions.
+ * stdlib/Makefile: Compile system.c with exceptions.
+ * sysvipc/Makefile: Compile msgrcv.c and msgsnd.c with exceptions.
+ * termios/Makefile: Compile tcdrain.c with exceptions.
+ * sysdeps/generic/lockf.c: Add comment explaining the cancellation
+ situation.
+ * sysdeps/generic/pselect.c: Likewise.
+ * sysdeps/posix/sigpause.c: Likewise.
+ * sysdeps/posix/system.c: Likewise.
+ * sysdeps/posix/waitid.c: Likewise.
+ * sysdeps/unix/sysv/linux/sleep.c: Likewise.
+ * sysdeps/unix/sysv/linux/usleep.c: Likewise.
+ * sysdeps/unix/sysv/linux/i386/sysdep.h: Major rewrite of
+ INTERNAL_SYSCALL to not use push inside asm statement so that
+ unwind info is correct around the syscall.
+ * sysdeps/unix/clock_nanosleep.c: Add cancellation support.
+ * sysdeps/unix/sysv/linux/clock_nanosleep.c: Likewise.
+
2003-06-15 Andreas Jaeger <aj@suse.de>
* sysdeps/x86_64/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE):
include ../Rules
CFLAGS-fts.c = -Wno-uninitialized
+CFLAGS-fcntl.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-poll.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-lockf.c = -fexceptions
+
CFLAGS-test-stat.c = -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE
CFLAGS-test-lfs.c = -D_LARGEFILE64_SOURCE
CFLAGS-tsearch.c = $(exceptions)
CFLAGS-lsearch.c = $(exceptions)
+CFLAGS-pselect.c = -fexceptions
+CFLAGS-readv.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-writev.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-usleep.c = -fexceptions
include ../Rules
+2003-06-15 Ulrich Drepper <drepper@redhat.com>
+
+ * pthreadP.h (LIBC_CANCEL_ASYNC): Also define for librt.
+ (LIBC_CANCEL_RESET): Likewise.
+ Declare __librt_enable_asynccancel and __librt_disable_asynccancel.
+ * sysdeps/pthread/Makefile (librt-sysdep_routines): Add
+ librt-cancellation.
+ (CFLAGS-libcrt-cancellation.c): Define.
+ * sysdeps/pthread/librt-cancellation.c: New file.
+ * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: Define all the nice
+ macros also when compiling librt.
+ * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h: Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: Likewise.
+ * sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h: Likewise.
+ * sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h: Likewise.
+ * sysdeps/unix/sysv/linux/sh/sysdep-cancel.h: Likewise.
+ * sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Likewise.
+
+ * sysdeps/unix/sysv/linux/timer_create.c: Add prototype for
+ compat_timer_create.
+
2003-06-14 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/posix-timer.h (timespec_compare): Always inline.
endif
ifeq ($(subdir),rt)
-librt-sysdep_routines += timer_routines
+librt-sysdep_routines += timer_routines librt-cancellation
CPPFLAGS-timer_routines.c = -I../nptl
+CFLAGS-librt-cancellation.c += -fexceptions -fasynchronous-unwind-tables
ifeq (yes,$(build-shared))
$(objpfx)tst-timer: $(objpfx)librt.so $(shared-thread-library)
--- /dev/null
+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ 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.
+
+ 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <setjmp.h>
+#include <signal.h>
+#include <stdlib.h>
+#include "pthreadP.h"
+#include "atomic.h"
+
+
+#ifdef IS_IN_librt
+
+/* The next two functions are similar to pthread_setcanceltype() but
+ more specialized for the use in the cancelable functions like write().
+ They do not need to check parameters etc. */
+int
+attribute_hidden
+__librt_enable_asynccancel (void)
+{
+ struct pthread *self = THREAD_SELF;
+ int oldval = THREAD_GETMEM (self, cancelhandling);
+
+ while (1)
+ {
+ int newval = oldval | CANCELTYPE_BITMASK;
+
+ if (__builtin_expect ((oldval & CANCELED_BITMASK) != 0, 0))
+ {
+ /* If we are already exiting stop right here. */
+ if ((oldval & EXITING_BITMASK) != 0)
+ break;
+
+ int curval = THREAD_ATOMIC_CMPXCHG_VAL (self, cancelhandling,
+ newval, oldval);
+ if (__builtin_expect (curval != oldval, 0))
+ {
+ /* Somebody else modified the word, try again. */
+ oldval = curval;
+ continue;
+ }
+
+ THREAD_SETMEM (self, result, PTHREAD_CANCELED);
+
+ __do_cancel ();
+
+ /* NOTREACHED */
+ }
+
+ int curval = THREAD_ATOMIC_CMPXCHG_VAL (self, cancelhandling, newval,
+ oldval);
+ if (__builtin_expect (curval == oldval, 1))
+ break;
+
+ /* Prepare the next round. */
+ oldval = curval;
+ }
+
+ return oldval;
+}
+
+
+void
+internal_function attribute_hidden
+__librt_disable_asynccancel (int oldtype)
+{
+ /* If asynchronous cancellation was enabled before we do not have
+ anything to do. */
+ if (oldtype & CANCELTYPE_BITMASK)
+ return;
+
+ struct pthread *self = THREAD_SELF;
+ int oldval = THREAD_GETMEM (self, cancelhandling);
+
+ while (1)
+ {
+ int newval = oldval & ~CANCELTYPE_BITMASK;
+
+ if (newval == oldval)
+ break;
+
+ int curval = THREAD_ATOMIC_CMPXCHG_VAL (self, cancelhandling, newval,
+ oldval);
+ if (__builtin_expect (curval == oldval, 1))
+ break;
+
+ /* Prepare the next round. */
+ oldval = curval;
+ }
+}
+
+
+/* XXX Hack ahead. In librt we currently do not have access to a
+ function equivalent to __pthread_unwind. Therefore we just raise a
+ signal. */
+void
+attribute_hidden
+__pthread_unwind (__pthread_unwind_buf_t *buf)
+{
+ INTERNAL_SYSCALL_DECL (err);
+ while (1)
+ INTERNAL_SYSCALL (tkill, err, 2, THREAD_GETMEM (THREAD_SELF, tid),
+ SIGCANCEL);
+}
+
+
+#endif
# include <nptl/pthreadP.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
# include <nptl/pthreadP.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
# include <nptl/pthreadP.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
# include <nptl/pthreadP.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
# include <nptl/pthreadP.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
# include <nptl/pthreadP.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
# include <nptl/pthreadP.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# define _IMM12 #-12
# define _IMM16 #-16
#ifdef __NR_timer_create
# ifndef __ASSUME_POSIX_TIMERS
+static int compat_timer_create (clockid_t clock_id, struct sigevent *evp,
+ timer_t *timerid);
# define timer_create static compat_timer_create
# include <nptl/sysdeps/pthread/timer_create.c>
# undef timer_create
# include <nptl/pthreadP.h>
#endif
-#if !defined NOT_IN_libc || defined IS_IN_libpthread
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
CFLAGS-regex.c = -Wno-strict-prototypes
CFLAGS-getaddrinfo.c = -DRESOLVER
+CFLAGS-pread.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-pread64.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-pwrite.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-pwrite64.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-sleep.c = -fexceptions
+CFLAGS-wait.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-waitid.c = -fexceptions
+CFLAGS-waitpid.c = -fexceptions -fasynchronous-unwind-tables
+
tstgetopt-ARGS = -a -b -cfoobar --required foobar --optional=bazbug \
--none random --col --color --colour
include ../Rules
+CFLAGS-aio_suspend.c = -fexceptions
+CFLAGS-clock_nanosleep.c = -fexceptions -fasynchronous-unwind-tables
+
# Depend on libc.so so a DT_NEEDED is generated in the shared objects.
# This ensures they will load libc.so for needed symbols if loaded by
# a statically-linked program that hasn't already loaded it.
include ../Rules
+
+CFLAGS-sigpause.c = -fexceptions
+CFLAGS-sigsuspend.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-sigtimedwait.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-sigwait.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-sigwaitinfo.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-bsearch.c = $(exceptions)
CFLAGS-msort.c = $(exceptions)
CFLAGS-qsort.c = $(exceptions)
+CFLAGS-system.c = -fexceptions
include ../Makeconfig
-/* Copyright (C) 1994, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1994,1996,1997,1998,2000,2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
return -1;
}
+ /* lockf() is a cancellation point but so is fcntl() if F_SETLKW is
+ used. Therefore we don't have to care about cancellation here,
+ the fcntl() function will take care of it. */
return __fcntl (fd, cmd, &fl);
}
-/* Copyright (C) 1996, 1997, 1998, 2001, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1996,1997,1998,2001,2002,2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
if (sigmask != NULL)
__sigprocmask (SIG_SETMASK, sigmask, &savemask);
+ /* Note the pselect() is a cancellation point. But since we call
+ select() which itself is a cancellation point we do not have
+ to do anything here. */
retval = __select (nfds, readfds, writefds, exceptfds,
timeout != NULL ? &tval : NULL);
else if (sigset_set_old_mask (&set, sig_or_mask) < 0)
return -1;
+ /* Note the sigpause() is a cancellation point. But since we call
+ sigsuspend() which itself is a cancellation point we do not have
+ to do anything here. */
return __sigsuspend (&set);
}
}
while (child != pid);
#else
+ /* Note the system() is a cancellation point. But since we call
+ waitpid() which itself is a cancellation point we do not
+ have to do anything here. */
if (TEMP_FAILURE_RETRY (__waitpid (pid, &status, 0)) != pid)
status = -1;
#endif
/* Pseudo implementation of waitid.
- Copyright (C) 1997, 1998, 2002 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998, 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1997.
return -1;
}
+ /* Note the waitid() is a cancellation point. But since we call
+ waitpid() which itself is a cancellation point we do not have
+ to do anything here. */
child = __waitpid (pid, &status, options);
if (child == -1)
#include <errno.h>
#include <time.h>
#include <hp-timing.h>
-
+#include <sysdep-cancel.h>
#if HP_TIMING_AVAIL
# define CPUCLOCK_P(clock) \
/* Not supported. */
return ENOTSUP;
- return __builtin_expect (nanosleep (req, rem), 0) ? errno : 0;
+ if (SINGLE_THREAD_P)
+ return __builtin_expect (nanosleep (req, rem), 0) ? errno : 0;
+
+ /* More than one thread running, enable cancellation. */
+ int oldstate = LIBC_CANCEL_ASYNC ();
+
+ int result = __builtin_expect (nanosleep (req, rem), 0) ? errno : 0;
+
+ LIBC_CANCEL_RESET (oldstate);
+
+ return result;
}
#include <time.h>
-#include <sysdep.h>
+#include <sysdep-cancel.h>
#include "kernel-features.h"
INTERNAL_SYSCALL_DECL (err);
int r;
- r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, req, rem);
+ if (SINGLE_THREAD_P)
+ r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, req, rem);
+ else
+ {
+ int oldstate = LIBC_CANCEL_ASYNC ();
+
+ r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, req,
+ rem);
+
+ LIBC_CANCEL_RESET (oldstate);
+ }
+
return (INTERNAL_SYSCALL_ERROR_P (r, err)
? INTERNAL_SYSCALL_ERRNO (r, err) : 0);
}
if (!__libc_missing_posix_timers) \
{ \
INTERNAL_SYSCALL_DECL (err); \
+ \
+ int oldstate = LIBC_CANCEL_ASYNC (); \
+ \
int r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, \
req, rem); \
\
+ LIBC_CANCEL_RESET (oldstate); \
+ \
if (!INTERNAL_SYSCALL_ERROR_P (r, err)) \
return 0; \
\
if (INTERNAL_SYSCALL_ERRNO (r, err) != ENOSYS) \
return INTERNAL_SYSCALL_ERRNO (r, err); \
- \
+ \
__libc_missing_posix_timers = 1; \
}
# endif
".macro bpushl name reg\n\t"
".if 1 - \\name\n\t"
".if 2 - \\name\n\t"
- "pushl %ebx\n\t"
+ "error\n\t"
".else\n\t"
"xchgl \\reg, %ebx\n\t"
".endif\n\t"
".macro bpopl name reg\n\t"
".if 1 - \\name\n\t"
".if 2 - \\name\n\t"
- "popl %ebx\n\t"
+ "error\n\t"
".else\n\t"
"xchgl \\reg, %ebx\n\t"
".endif\n\t"
".endif\n\t"
- ".endm\n\t"
- ".macro bmovl name reg\n\t"
- ".if 1 - \\name\n\t"
- ".if 2 - \\name\n\t"
- "movl \\reg, %ebx\n\t"
- ".endif\n\t"
- ".endif\n\t"
".endm\n\t");
/* Define a macro which expands inline into the wrapper code for a system
# ifdef SHARED
# define INTERNAL_SYSCALL(name, err, nr, args...) \
({ \
- unsigned int resultvar; \
+ register unsigned int resultvar; \
+ EXTRAVAR_##nr \
asm volatile ( \
LOADARGS_##nr \
"movl %1, %%eax\n\t" \
# else
# define INTERNAL_SYSCALL(name, err, nr, args...) \
({ \
- unsigned int resultvar; \
+ register unsigned int resultvar; \
+ EXTRAVAR_##nr \
asm volatile ( \
LOADARGS_##nr \
"movl %1, %%eax\n\t" \
#else
# define INTERNAL_SYSCALL(name, err, nr, args...) \
({ \
- unsigned int resultvar; \
+ register unsigned int resultvar; \
+ EXTRAVAR_##nr \
asm volatile ( \
LOADARGS_##nr \
"movl %1, %%eax\n\t" \
- "int $0x80\n\t" \
+ "int $0x80\n\t" \
RESTOREARGS_##nr \
: "=a" (resultvar) \
: "i" (__NR_##name) ASMFMT_##nr(args) : "memory", "cc"); \
#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
#define LOADARGS_0
-#if defined I386_USE_SYSENTER && defined SHARED
-# define LOADARGS_1 \
- "bpushl .L__X'%k3, %k3\n\t" \
- "bmovl .L__X'%k3, %k3\n\t"
+#ifdef __PIC__
+# if defined I386_USE_SYSENTER
+# define LOADARGS_1 \
+ "bpushl .L__X'%k3, %k3\n\t"
+# define LOADARGS_5 \
+ "movl %%ebx, %4\n\t" \
+ "movl %3, %%ebx\n\t"
+# else
+# define LOADARGS_1 \
+ "bpushl .L__X'%k2, %k2\n\t"
+# define LOADARGS_5 \
+ "movl %%ebx, %3\n\t" \
+ "movl %2, %%ebx\n\t"
+# endif
+# define LOADARGS_2 LOADARGS_1
+# define LOADARGS_3 \
+ "xchgl %%ebx, %%edi\n\t"
+# define LOADARGS_4 LOADARGS_3
#else
-# define LOADARGS_1 \
- "bpushl .L__X'%k2, %k2\n\t" \
- "bmovl .L__X'%k2, %k2\n\t"
+# define LOADARGS_1
+# define LOADARGS_2
+# define LOADARGS_3
+# define LOADARGS_4
+# define LOADARGS_5
#endif
-#define LOADARGS_2 LOADARGS_1
-#define LOADARGS_3 LOADARGS_1
-#define LOADARGS_4 LOADARGS_1
-#define LOADARGS_5 LOADARGS_1
#define RESTOREARGS_0
-#if defined I386_USE_SYSENTER && defined SHARED
-# define RESTOREARGS_1 \
+#ifdef __PIC__
+# if defined I386_USE_SYSENTER && defined SHARED
+# define RESTOREARGS_1 \
"bpopl .L__X'%k3, %k3\n\t"
-#else
-# define RESTOREARGS_1 \
+# define RESTOREARGS_5 \
+ "movl %4, %%ebx"
+# else
+# define RESTOREARGS_1 \
"bpopl .L__X'%k2, %k2\n\t"
+# define RESTOREARGS_5 \
+ "movl %3, %%ebx"
+# endif
+# define RESTOREARGS_2 RESTOREARGS_1
+# define RESTOREARGS_3 \
+ "xchgl %%edi, %%ebx\n\t"
+# define RESTOREARGS_4 RESTOREARGS_3
+#else
+# define RESTOREARGS_1
+# define RESTOREARGS_2
+# define RESTOREARGS_3
+# define RESTOREARGS_4
+# define RESTOREARGS_5
#endif
-#define RESTOREARGS_2 RESTOREARGS_1
-#define RESTOREARGS_3 RESTOREARGS_1
-#define RESTOREARGS_4 RESTOREARGS_1
-#define RESTOREARGS_5 RESTOREARGS_1
#define ASMFMT_0()
-#define ASMFMT_1(arg1) \
- , "acdSD" (arg1)
-#define ASMFMT_2(arg1, arg2) \
+#ifdef __PIC__
+# define ASMFMT_1(arg1) \
+ , "cd" (arg1)
+# define ASMFMT_2(arg1, arg2) \
, "d" (arg1), "c" (arg2)
-#define ASMFMT_3(arg1, arg2, arg3) \
- , "aSD" (arg1), "c" (arg2), "d" (arg3)
-#define ASMFMT_4(arg1, arg2, arg3, arg4) \
- , "aD" (arg1), "c" (arg2), "d" (arg3), "S" (arg4)
-#define ASMFMT_5(arg1, arg2, arg3, arg4, arg5) \
- , "a" (arg1), "c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5)
+# define ASMFMT_3(arg1, arg2, arg3) \
+ , "D" (arg1), "c" (arg2), "d" (arg3)
+# define ASMFMT_4(arg1, arg2, arg3, arg4) \
+ , "D" (arg1), "c" (arg2), "d" (arg3), "S" (arg4)
+# define ASMFMT_5(arg1, arg2, arg3, arg4, arg5) \
+ , "0" (arg1), "m" (_xv), "c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5)
+#else
+# define ASMFMT_1(arg1) \
+ , "b" (arg1)
+# define ASMFMT_2(arg1, arg2) \
+ , "b" (arg1), "c" (arg2)
+# define ASMFMT_3(arg1, arg2, arg3) \
+ , "b" (arg1), "c" (arg2), "d" (arg3)
+# define ASMFMT_4(arg1, arg2, arg3, arg4) \
+ , "b" (arg1), "c" (arg2), "d" (arg3), "S" (arg4)
+# define ASMFMT_5(arg1, arg2, arg3, arg4, arg5) \
+ , "b" (arg1), "c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5)
+#endif
+
+#define EXTRAVAR_0
+#define EXTRAVAR_1
+#define EXTRAVAR_2
+#define EXTRAVAR_3
+#define EXTRAVAR_4
+#ifdef __PIC__
+# define EXTRAVAR_5 int _xv;
+#else
+# define EXTRAVAR_5
+#endif
#endif /* __ASSEMBLER__ */
/* Implementation of the POSIX sleep function using nanosleep.
- Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998, 1999, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
return -1;
}
+ /* Note the sleep() is a cancellation point. But since we call
+ nanosleep() which itself is a cancellation point we do not
+ have to do anything here. */
if (oact.sa_handler == SIG_IGN)
{
/* We should leave SIGCHLD blocked. */
/* Implementation of the BSD usleep function using nanosleep.
- Copyright (C) 1996, 1997, 1999, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1999, 2001, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
struct timespec ts = { .tv_sec = (long int) (useconds / 1000000),
.tv_nsec = (long int) (useconds % 1000000) * 1000ul };
+ /* Note the usleep() is a cancellation point. But since we call
+ nanosleep() which itself is a cancellation point we do not have
+ to do anything here. */
return __nanosleep (&ts, NULL);
}
shmat shmdt shmget shmctl
include ../Rules
+
+CFLAGS-msgrcv.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-msgsnd.c = -fexceptions -fasynchronous-unwind-tables
-# Copyright (C) 1991, 1992, 1993, 1995, 1997 Free Software Foundation, Inc.
+# Copyright (C) 1991,1992,1993,1995,1997,2003 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
tcdrain tcflow tcflush tcsendbrk cfmakeraw tcgetsid
include ../Rules
+
+CFLAGS-tcdrain.c = -fexceptions -fasynchronous-unwind-tables
projects / platform / upstream / glibc.git / commitdiff