+2000-07-27 Jes Sorensen <jes@linuxcare.com>
+
+ * sysdeps/unix/sysv/linux/ia64/fork.c: Make __libc_fork the strong
+ name and add weak alias for __fork.
+
+ * sysdeps/unix/sysv/linux/ia64/syscalls.list: Change llseek, pread
+ & pwrite to use __libc_<name> as strong names instead of
+ __syscall_<name>.
+
+ * include/sched.h: Add clone2 prototype.
+
+2000-07-26 Jes Sorensen <jes@linuxcare.com>
+
+ * sysdeps/unix/sysv/linux/ia64/sysdep.h (ENTRY): Don't declare the
+ procedure name twice.
+
+2000-07-27 Philip Blundell <philb@gnu.org>
+
+ * malloc/malloc.c (HAVE_MREMAP): Undo change of 1997-12-04.
+
2000-07-27 Andreas Jaeger <aj@suse.de>
* sysdeps/unix/sysv/linux/bits/socket.h: Rename MSG_URG TO
extern int __sched_get_priority_min (int __algorithm);
extern int __sched_rr_get_interval (__pid_t __pid, struct timespec *__t);
-/* This is Linux specific. */
+/* These are Linux specific. */
extern int __clone (int (*__fn) (void *__arg), void *__child_stack,
int __flags, void *__arg);
+extern int __clone2 (int (*__fn) (void *__arg), void *__child_stack_base,
+ size_t __child_stack_size, int __flags, void *__arg);
#endif
--- /dev/null
+/* POSIX spinlock implementation. ia64 version.
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jes Sorensen <jes@linuxcare.com>
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <errno.h>
+#include <pthread.h>
+
+
+/* This implementation is inspired by the implementation used in the
+ Linux kernel. */
+
+int
+__pthread_spin_lock (pthread_spinlock_t *lock)
+{
+ asm volatile
+ ("mov ar.ccv = r0\n\t"
+ "mov r3 = 1\n\t"
+ ";;\n"
+ "1:\n\t"
+ "ld4 r2 = %0\n\t"
+ ";;\n\t"
+ "cmp4.eq p0, p7 = r0, r2\n\t"
+ "(p7) br.cond.spnt.few 1b \n\t"
+ "cmpxchg4.acq r2 = %0, r3, ar.ccv\n\t"
+ ";;\n\t"
+ "cmp4.eq p0, p7 = r0, r2\n\t"
+ "(p7) br.cond.spnt.few 1b\n\t"
+ ";;\n"
+ :: "m" (lock) : "r2", "r3", "p7", "memory");
+ return 0;
+}
+weak_alias (__pthread_spin_lock, pthread_spin_lock)
+
+
+int
+__pthread_spin_trylock (pthread_spinlock_t *lock)
+{
+ int oldval;
+
+ asm volatile
+ ("mov ar.ccv = r0\n\t"
+ "mov r2 = 1\n\t"
+ ";;\n\t"
+ "cmpxchg4.acq %0 = %1, r2, ar.ccv\n\t"
+ ";;\n"
+ : "=r" (oldval) : "m" (lock) : "r2", "memory");
+ return oldval > 0 ? 0 : EBUSY;
+}
+weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
+
+
+int
+__pthread_spin_unlock (pthread_spinlock_t *lock)
+{
+ return *lock = 0;
+}
+weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
+
+
+int
+__pthread_spin_init (pthread_spinlock_t *lock, int pshared)
+{
+ /* We can ignore the `pshared' parameter. Since we are busy-waiting
+ all processes which can access the memory location `lock' points
+ to can use the spinlock. */
+ return *lock = 0;
+}
+weak_alias (__pthread_spin_init, pthread_spin_init)
+
+
+int
+__pthread_spin_destroy (pthread_spinlock_t *lock)
+{
+ /* Nothing to do. */
+ return 0;
+}
+weak_alias (__pthread_spin_destroy, pthread_spin_destroy)
umount2 - umount 2 __umount2 umount2
# Whee! 64-bit systems naturally implement llseek.
-llseek EXTRA lseek 3 __llseek llseek __lseek64 lseek64
-pread - pread 4 __syscall_pread __syscall_pread64 __pread pread __pread64 pread64
-pwrite - pwrite 4 __syscall_pwrite __syscall_pwrite64 __pwrite pwrite __pwrite64 pwrite64
+llseek EXTRA lseek 3 __libc_lseek64 __lseek llseek __lseek64 lseek64
+pread - pread 4 __libc_pread __libc_pread64 __pread pread __pread64 pread64
+pwrite - pwrite 4 __libc_pwrite __libc_pwrite64 __pwrite pwrite __pwrite64 pwrite64
fstatfs - fstatfs i:ip __fstatfs fstatfs fstatfs64 __fstatfs64
statfs - statfs i:sp __statfs statfs statfs64
mmap - mmap b:aniiii __mmap mmap __mmap64 mmap64
projects / platform / upstream / glibc.git / commitdiff