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S390: Consolidate NPTL/non versions of vfork
This commit is contained in:
Roland McGrath
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16
ChangeLog
16
ChangeLog
@ -1,5 +1,21 @@
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2014-06-26 Roland McGrath <roland@hack.frob.com>
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* nptl/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S: Moved ...
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* sysdeps/unix/sysv/linux/s390/s390-32/vfork.S: ... here.
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(__libc_vfork): Define the function under this name.
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[!NOT_IN_libc] (__vfork): Make this an alias.
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[!NOT_IN_libc] (vfork): Conditionalize the weak_alias.
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* nptl/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S: Moved ...
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* sysdeps/unix/sysv/linux/s390/s390-64/vfork.S: ... here.
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(__libc_vfork): Define the function under this name.
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[!NOT_IN_libc] (__vfork): Make this an alias.
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[!NOT_IN_libc] (vfork): Conditionalize the weak_alias.
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* sysdeps/unix/sysv/linux/s390/pt-vfork.S: New file.
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* nptl/sysdeps/unix/sysv/linux/s390/s390-32/pt-vfork.S: File removed.
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* nptl/sysdeps/unix/sysv/linux/s390/s390-64/pt-vfork.S: File removed.
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* sysdeps/unix/sysv/linux/s390/s390-32/syscalls.list: Remove vfork.
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* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list: Likewise.
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* sysdeps/unix/sysv/linux/s390/s390-32/clone.S: Deconditionalize the
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code that was previously under [RESET_PID].
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* sysdeps/unix/sysv/linux/s390/s390-64/clone.S: Likewise.
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@ -1,52 +0,0 @@
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/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#define _ERRNO_H 1
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#include <bits/errno.h>
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#include <bits/wordsize.h>
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#include <tcb-offsets.h>
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/* Clone the calling process, but without copying the whole address space.
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The calling process is suspended until the new process exits or is
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replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
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and the process ID of the new process to the old process. */
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ENTRY (__vfork)
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ear %r4,%a0
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l %r3,PID(%r4)
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lcr %r1,%r3
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st %r1,PID(%r4)
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/* Do vfork system call. */
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svc SYS_ify (vfork)
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ltr %r2,%r2
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je 1f
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st %r3,PID(%r4)
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1:
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/* Check for error. */
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lhi %r4,-4095
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clr %r2,%r4
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jnl SYSCALL_ERROR_LABEL
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/* Normal return. */
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br %r14
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PSEUDO_END(__vfork)
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weak_alias (__vfork, vfork)
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@ -1,55 +0,0 @@
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/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#define _ERRNO_H 1
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#include <bits/errno.h>
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#include <bits/wordsize.h>
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#include <tcb-offsets.h>
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/* Clone the calling process, but without copying the whole address space.
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The calling process is suspended until the new process exits or is
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replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
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and the process ID of the new process to the old process. */
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ENTRY (__vfork)
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ear %r4,%a0
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sllg %r4,%r4,32
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ear %r4,%a1
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l %r3,PID(%r4)
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lcr %r1,%r3
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st %r1,PID(%r4)
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/* Do vfork system call. */
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svc SYS_ify (vfork)
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ltgr %r2,%r2
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je 1f
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st %r3,PID(%r4)
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1:
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/* Check for error. */
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lghi %r4,-4095
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clgr %r2,%r4
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jgnl SYSCALL_ERROR_LABEL
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/* Normal return. */
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br %r14
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PSEUDO_END(__vfork)
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weak_alias (__vfork, vfork)
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1
sysdeps/unix/sysv/linux/s390/pt-vfork.S
Normal file
1
sysdeps/unix/sysv/linux/s390/pt-vfork.S
Normal file
@ -0,0 +1 @@
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#include <sysdeps/unix/sysv/linux/alpha/pt-vfork.S>
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@ -2,7 +2,6 @@
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oldgetrlimit EXTRA getrlimit i:ip __old_getrlimit getrlimit@GLIBC_2.0
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oldsetrlimit EXTRA setrlimit i:ip __old_setrlimit setrlimit@GLIBC_2.0
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vfork - vfork 0 __vfork vfork
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prlimit64 EXTRA prlimit64 i:iipp prlimit64
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fanotify_mark EXTRA fanotify_mark i:iiiiis fanotify_mark
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@ -27,7 +27,7 @@
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replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
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and the process ID of the new process to the old process. */
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ENTRY (__vfork)
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ENTRY (__libc_vfork)
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ear %r4,%a0
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lhi %r1,1
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icm %r3,15,PID(%r4)
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@ -50,6 +50,10 @@ ENTRY (__vfork)
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/* Normal return. */
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br %r14
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PSEUDO_END(__vfork)
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PSEUDO_END (__libc_vfork)
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#if !NOT_IN_libc
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weak_alias (__libc_vfork, vfork)
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strong_alias (__libc_vfork, __vfork)
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libc_hidden_def (__vfork)
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weak_alias (__vfork, vfork)
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#endif
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@ -1,7 +1,5 @@
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# File name Caller Syscall name # args Strong name Weak names
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vfork - vfork 0 __vfork vfork
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# semaphore and shm system calls
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msgctl - msgctl i:iip __msgctl msgctl
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msgget - msgget i:ii __msgget msgget
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@ -27,8 +27,7 @@
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replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
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and the process ID of the new process to the old process. */
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ENTRY (__vfork)
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ENTRY (__libc_vfork)
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ear %r4,%a0
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sllg %r4,%r4,32
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ear %r4,%a1
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@ -52,6 +51,10 @@ ENTRY (__vfork)
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/* Normal return. */
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br %r14
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PSEUDO_END(__vfork)
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PSEUDO_END (__libc_vfork)
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#if !NOT_IN_libc
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weak_alias (__libc_vfork, vfork)
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strong_alias (__libc_vfork, __vfork)
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libc_hidden_def (__vfork)
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weak_alias (__vfork, vfork)
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#endif
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