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
80 lines
2.4 KiB
ArmAsm
80 lines
2.4 KiB
ArmAsm
/* $NetBSD: sbrk.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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* 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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* from: @(#)sbrk.s 5.1 (Berkeley) 4/23/90
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*/
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#include "SYS.h"
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.globl _C_LABEL(_end)
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#ifdef WEAK_ALIAS
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WEAK_ALIAS(sbrk, _sbrk)
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#endif
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.data
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.align 0
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.globl _C_LABEL(__curbrk)
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.hidden _C_LABEL(__curbrk)
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.type _C_LABEL(__curbrk),#object
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_C_LABEL(__curbrk):
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.word _C_LABEL(_end)
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/*
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* Change the data segment size
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*/
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ENTRY(_sbrk)
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/* get address or offset to __curbrk */
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ldr r2, .Lcurbrk
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#ifdef __PIC__
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add r2, r2, pc /* pc = &.LPIC0 */
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#endif
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/* Get the current brk address */
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ldr r1, [r2]
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/* Calculate new value */
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.LPIC0: mov r3, r0
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adds r0, r0, r1
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SYSTRAP(break)
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_INVOKE_CERROR()
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/* Store new curbrk value */
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ldr r0, [r2]
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adds r1, r0, r3
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str r1, [r2]
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/* Return old curbrk value */
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RET
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.align 0
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.Lcurbrk:
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.word REL_SYM(_C_LABEL(__curbrk), .LPIC0)
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END(_sbrk)
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