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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.
135 lines
4.4 KiB
C
135 lines
4.4 KiB
C
/* Copyright (C) 1995, 1997, 1998, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
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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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#include <errno.h>
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#include <sys/msg.h>
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#include <ipc_priv.h>
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#include <sysdep.h>
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#include <string.h>
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#include <sys/syscall.h>
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#include <shlib-compat.h>
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#include <bp-checks.h>
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#include "kernel-features.h"
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struct __old_msqid_ds
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{
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struct __old_ipc_perm msg_perm; /* structure describing operation permission */
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struct msg *__unbounded __msg_first; /* pointer to first message on queue */
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struct msg *__unbounded __msg_last; /* pointer to last message on queue */
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__time_t msg_stime; /* time of last msgsnd command */
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__time_t msg_rtime; /* time of last msgrcv command */
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__time_t msg_ctime; /* time of last change */
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struct wait_queue *__unbounded __wwait; /* ??? */
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struct wait_queue *__unbounded __rwait; /* ??? */
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unsigned short int __msg_cbytes; /* current number of bytes on queue */
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unsigned short int msg_qnum; /* number of messages currently on queue */
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unsigned short int msg_qbytes; /* max number of bytes allowed on queue */
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__ipc_pid_t msg_lspid; /* pid of last msgsnd() */
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__ipc_pid_t msg_lrpid; /* pid of last msgrcv() */
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};
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/* Allows to control internal state and destruction of message queue
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objects. */
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#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
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int __old_msgctl (int, int, struct __old_msqid_ds *);
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#endif
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int __new_msgctl (int, int, struct msqid_ds *);
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#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
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int
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__old_msgctl (int msqid, int cmd, struct __old_msqid_ds *buf)
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{
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return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl, msqid, cmd, 0, CHECK_1 (buf));
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}
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compat_symbol (libc, __old_msgctl, msgctl, GLIBC_2_0);
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#endif
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int
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__new_msgctl (int msqid, int cmd, struct msqid_ds *buf)
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{
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#if __ASSUME_IPC64 > 0
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return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl,
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msqid, cmd | __IPC_64, 0, CHECK_1 (buf));
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#else
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switch (cmd) {
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case MSG_STAT:
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case IPC_STAT:
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case IPC_SET:
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break;
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default:
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return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl,
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msqid, cmd, 0, CHECK_1 (buf));
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}
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{
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int save_errno = errno, result;
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struct __old_msqid_ds old;
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/* Unfortunately there is no way how to find out for sure whether
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we should use old or new msgctl. */
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result = INLINE_SYSCALL (ipc, 5, IPCOP_msgctl,
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msqid, cmd | __IPC_64, 0, CHECK_1 (buf));
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if (result != -1 || errno != EINVAL)
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return result;
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__set_errno(save_errno);
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if (cmd == IPC_SET)
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{
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old.msg_perm.uid = buf->msg_perm.uid;
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old.msg_perm.gid = buf->msg_perm.gid;
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old.msg_perm.mode = buf->msg_perm.mode;
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old.msg_qbytes = buf->msg_qbytes;
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if (old.msg_perm.uid != buf->msg_perm.uid ||
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old.msg_perm.gid != buf->msg_perm.gid ||
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old.msg_qbytes != buf->msg_qbytes)
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{
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__set_errno (EINVAL);
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return -1;
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}
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}
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result = INLINE_SYSCALL (ipc, 5, IPCOP_msgctl,
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msqid, cmd, 0, __ptrvalue (&old));
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if (result != -1 && cmd != IPC_SET)
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{
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memset(buf, 0, sizeof(*buf));
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buf->msg_perm.__key = old.msg_perm.__key;
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buf->msg_perm.uid = old.msg_perm.uid;
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buf->msg_perm.gid = old.msg_perm.gid;
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buf->msg_perm.cuid = old.msg_perm.cuid;
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buf->msg_perm.cgid = old.msg_perm.cgid;
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buf->msg_perm.mode = old.msg_perm.mode;
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buf->msg_perm.__seq = old.msg_perm.__seq;
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buf->msg_stime = old.msg_stime;
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buf->msg_rtime = old.msg_rtime;
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buf->msg_ctime = old.msg_ctime;
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buf->__msg_cbytes = old.__msg_cbytes;
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buf->msg_qnum = old.msg_qnum;
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buf->msg_qbytes = old.msg_qbytes;
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buf->msg_lspid = old.msg_lspid;
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buf->msg_lrpid = old.msg_lrpid;
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}
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return result;
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}
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#endif
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}
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versioned_symbol (libc, __new_msgctl, msgctl, GLIBC_2_2);
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