84d9c625bf
- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop
Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
95 lines
3 KiB
ArmAsm
95 lines
3 KiB
ArmAsm
/* $NetBSD: __vfork14.S,v 1.12 2013/09/12 15:36:15 joerg Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "SYS.h"
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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RCSID("from: @(#)Ovfork.s 5.1 (Berkeley) 5/12/90")
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#else
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RCSID("$NetBSD: __vfork14.S,v 1.12 2013/09/12 15:36:15 joerg Exp $")
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#endif
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#endif /* LIBC_SCCS and not lint */
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/*
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* @(#)vfork.s 4.1 (Berkeley) 12/21/80
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* C library -- vfork
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*/
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/*
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* pid = vfork();
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*
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* d1 == 0 in parent process, d1 == 1 in child process.
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* d0 == pid of child in parent, d0 == pid of parent in child.
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*
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* trickery here, due to keith sklower, uses ret to clear the stack,
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* and then returns with a jump indirect, since only one person can return
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* with a ret off this stack... we do the ret before we vfork!
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*/
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ENTRY(__vfork14)
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movl (%sp)+,%a1
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SYSTRAP(__vfork14)
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jcs err
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subql #1,%d1 /* from 1 to 0 in child, 0 to -1 in parent */
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andl %d1,%d0
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jmp (%a1)
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err:
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#ifdef _REENTRANT
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.globl _C_LABEL(__errno)
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movl %a1,-(%sp)
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movl %d0,-(%sp)
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jbsr PIC_PLT(_C_LABEL(__errno))
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#ifdef __SVR4_ABI__
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movl (%sp)+,(%a0)
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#else
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movl %d0,%a1
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movl (%sp)+,(%a1)
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#endif
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movl (%sp)+,%a1
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#else
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#ifdef __PIC__
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GOT_SETUP(%a0)
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movl _C_LABEL(errno)@GOT:w(%a0),%a0
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movl %d0,(%a0)
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#else
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.globl _C_LABEL(errno)
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movl %d0,_C_LABEL(errno)
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#endif /* __PIC__ */
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#endif /* _REENTRANT */
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moveq #-1,%d0
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jmp (%a1)
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END(__vfork14)
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