4d23a3a1e4
the OpenBSD tree and should be considered preliminary. They are here to facilitate building of the tree.
82 lines
2.4 KiB
ArmAsm
82 lines
2.4 KiB
ArmAsm
/*-
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. 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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* Ralph Campbell.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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(SYSLIBC_SCCS)
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.text
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.asciz "$OpenBSD$"
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#endif /* SYSLIBC_SCCS */
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.globl minbrk
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.globl curbrk
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.data
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minbrk: .word _C_LABEL(end)
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.text
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LEAF(brk)
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.set reorder
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lw v0, minbrk
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bltu a0, v0, 1f
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la t9, _brk
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jr t9
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1:
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move a0, v0 # dont allow break < minbrk
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li v0, SYS_break
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syscall
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bne a3, zero, 2f
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sw a0, curbrk
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move v0, zero
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j ra
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2:
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la t9, _C_LABEL(cerror)
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jr t9
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END(brk)
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LEAF(_brk)
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.set reorder
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li v0, SYS_break
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syscall
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bne a3, zero, 1f
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sw a0, curbrk
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move v0, zero
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j ra
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1:
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la t9, _C_LABEL(cerror)
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jr t9
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END(brk)
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