a0386a0da3
2000-09-28 Franz Sirl <Franz.Sirl-kernel@lauterbach.com> * sysdeps/unix/sysv/linux/kernel-features.h: Add __ASSUME_IPC64, only define it for powerpc for kernel >= 2.4.0. * sysdeps/unix/sysv/linux/msgctl.c: Test for __ASSUME_IPC64, not __ASSUME_32BITUIDS. * sysdeps/unix/sysv/linux/semctl.c: Likewise. * sysdeps/unix/sysv/linux/shmctl.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/ipc.h: Sync with kernel. * sysdeps/unix/sysv/linux/powerpc/bits/msq.h: New file. * sysdeps/unix/sysv/linux/powerpc/bits/sem.h: New file. * sysdeps/unix/sysv/linux/powerpc/bits/shm.h: New file. 2000-09-28 Martin Schwidefsksy <schwidefsky@de.ibm.com> * sysdeps/s390/atomicity.h: Fix compare_and_swap. * sysdeps/unix/sysv/linux/s390/bits/fcntl.h (F_GETLK64,F_SETLK64,F_SETLKW64): Use values from 2.4.0-test8. 2000-09-28 Denis Joseph Barrow <djbarrow@de.ibm.com> * sysdeps/unix/sysv/linux/s390/sys/procfs.h: Use definitions from ucontext.h. * sysdeps/unix/sysv/linux/s390/sys/ucontext.h: Fix ucontext structure. 2000-09-27 Andreas Schwab <schwab@suse.de> * math/Makefile (distribute): Explicitly add the long double test sources, to get them included even if long double is not supported. 2000-09-27 Jes Sorensen <jes@linuxcare.com> * elf/soinit.c (struct object): Move definition to gccframe.h and include it. Problem identified by HJ Lu. * sysdeps/ia64/gccframe.h: New file. ia64 specific version of struct object to be searched for frame unwind info. * sysdeps/generic/gccframe.h: New file. Generic version of struct object to be searched for frame unwind info. 2000-09-28 Ulrich Drepper <drepper@redhat.com> * manual/errno.texi: Correct error text for ENXIO. Reported by Jörg Schilling <schilling@fokus.gmd.de>. 2000-09-27 Jes Sorensen <jes@linuxcare.com> * sysdeps/ia64/fpu/fsetexcptflg.c (fesetexceptflag): Set the exception status bits rather than the exception disable bits. Don't include math.h. * sysdeps/ia64/fpu/fgetexcptflg.c (fegetexceptflag): Report the status of exceptions currently raised rather than which exceptions are enabled. * sysdeps/ia64/fpu/fclrexcpt.c (feclearexcept): Typecase to fenv_t rather than unsigned long int. * sysdeps/ia64/fpu/fedisblxcpt.c (fedisableexcept): Only disable the exceptions actually requested by the caller and not just disable all exceptions. * sysdeps/ia64/fpu/feenablxcpt.c (feenableexcept): Exceptions on the ia64 are enabled by clearing the respective bits in the fpsr, not setting them. * sysdeps/ia64/bits/fenv.h: typedef fexcept_t and fenv_t to unsigned long int rather than unsigned long to be consistent with the coding conventions. 2000-09-20 H.J. Lu <hjl@gnu.org> * sysdeps/ia64/fpu/fesetenv.c (fesetenv): Use fenv_t instead of unsigned long int. * sysdeps/ia64/fpu/fesetround.c (fesetround): Likewise. 2000-09-28 Ulrich Drepper <drepper@redhat.com> * string/bits/string2.h: Unify #if usage. 2000-09-27 Jakub Jelinek <jakub@redhat.com> * math/test-fenv.c (feexcp_mask_test): If enabling all exceptions and disabling underflow or overflow, disable inexact as well. * sysdeps/gnu/netinet/tcp.h: Add tcp_info defines and types.
77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
/* Low-level functions for atomic operations. S390 version.
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Copyright (C) 2000 Free Software Foundation, Inc.
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Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _ATOMICITY_H
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#define _ATOMICITY_H 1
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#include <inttypes.h>
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static inline int
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__attribute__ ((unused))
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exchange_and_add (volatile uint32_t *mem, int val)
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{
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int result;
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__asm__ __volatile__(
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" L %0,%2\n"
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" LA 2,%1\n"
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"0: LR 0,%0\n"
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" AR 0,%3\n"
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" CS %0,0,0(2)\n"
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" JL 0b"
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: "=&d" (result), "=m" (*mem)
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: "1" (*mem), "d" (val) : "0", "1", "2" );
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return result;
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}
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static inline void
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__attribute__ ((unused))
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atomic_add (volatile uint32_t *mem, int val)
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{
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__asm__ __volatile__(
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" LA 2,%0\n"
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"0: L 0,%1\n"
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" LR 1,0\n"
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" AR 1,%2\n"
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" CS 0,1,0(2)\n"
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" JL 0b"
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: "=m" (*mem) : "0" (*mem), "d" (val) : "0", "1", "2" );
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}
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static inline int
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__attribute__ ((unused))
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compare_and_swap (volatile long int *p, long int oldval, long int newval)
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{
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int retval;
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__asm__ __volatile__(
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" la 1,%1\n"
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" lr 0,%2\n"
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" cs 0,%3,0(1)\n"
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" ipm %0\n"
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" srl %0,28\n"
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"0:"
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: "=&r" (retval), "+m" (*p)
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: "d" (oldval) , "d" (newval)
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: "memory", "0", "1", "cc");
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return !retval;
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}
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#endif /* atomicity.h */
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