sbrk.S revision 1.3
1 1.3 matt /* $NetBSD: sbrk.S,v 1.3 2003/10/06 05:30:21 matt Exp $ */ 2 1.1 fredette 3 1.1 fredette /* $OpenBSD: sbrk.S,v 1.7 2001/06/04 23:14:04 mickey Exp $ */ 4 1.1 fredette 5 1.1 fredette /* 6 1.1 fredette * Copyright (c) 1999 Michael Shalayeff 7 1.1 fredette * All rights reserved. 8 1.1 fredette * 9 1.1 fredette * Redistribution and use in source and binary forms, with or without 10 1.1 fredette * modification, are permitted provided that the following conditions 11 1.1 fredette * are met: 12 1.1 fredette * 1. Redistributions of source code must retain the above copyright 13 1.1 fredette * notice, this list of conditions and the following disclaimer. 14 1.1 fredette * 2. Redistributions in binary form must reproduce the above copyright 15 1.1 fredette * notice, this list of conditions and the following disclaimer in the 16 1.1 fredette * documentation and/or other materials provided with the distribution. 17 1.1 fredette * 3. All advertising materials mentioning features or use of this software 18 1.1 fredette * must display the following acknowledgement: 19 1.1 fredette * This product includes software developed by Michael Shalayeff. 20 1.1 fredette * 4. The name of the author may not be used to endorse or promote products 21 1.1 fredette * derived from this software without specific prior written permission. 22 1.1 fredette * 23 1.1 fredette * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 1.1 fredette * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 1.1 fredette * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 1.1 fredette * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 27 1.1 fredette * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 1.1 fredette * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 1.1 fredette * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 1.1 fredette * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 1.1 fredette * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32 1.1 fredette * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 33 1.1 fredette * THE POSSIBILITY OF SUCH DAMAGE. 34 1.1 fredette */ 35 1.1 fredette 36 1.1 fredette #include "SYS.h" 37 1.1 fredette 38 1.1 fredette #if defined(LIBC_SCCS) && !defined(lint) 39 1.3 matt RCSID("$NetBSD: sbrk.S,v 1.3 2003/10/06 05:30:21 matt Exp $") 40 1.1 fredette #endif /* LIBC_SCCS and not lint */ 41 1.1 fredette 42 1.1 fredette .import end, data 43 1.1 fredette 44 1.1 fredette #ifdef WEAK_ALIAS 45 1.1 fredette WEAK_ALIAS(sbrk, _sbrk) 46 1.1 fredette #endif 47 1.1 fredette 48 1.1 fredette .data 49 1.1 fredette .export curbrk, data 50 1.3 matt curbrk: 51 1.1 fredette .long end 52 1.1 fredette 53 1.1 fredette ENTRY(_sbrk,0) 54 1.2 fredette #ifdef PIC 55 1.2 fredette addil LT%curbrk, %r19 56 1.2 fredette ldw RT%curbrk(%r1), %r1 57 1.3 matt ldw 0(%r1), %t2 58 1.2 fredette #else /* !PIC */ 59 1.3 matt ldil L%curbrk, %t1 60 1.3 matt ldw R%curbrk(%t1), %t2 61 1.2 fredette #endif /* !PIC */ 62 1.3 matt add %arg0, %t2, %arg0 63 1.3 matt stw %arg0, HPPA_FRAME_ARG(0)(%sp) 64 1.1 fredette 65 1.1 fredette SYSCALL(break) 66 1.1 fredette 67 1.2 fredette #ifdef PIC 68 1.2 fredette addil LT%curbrk, %r19 69 1.2 fredette ldw RT%curbrk(%r1), %r1 70 1.2 fredette #else /* !PIC */ 71 1.3 matt ldil L%curbrk, %t1 72 1.3 matt ldo R%curbrk(%t1), %r1 73 1.2 fredette #endif /* !PIC */ 74 1.3 matt ldw 0(%r1), %ret0 75 1.3 matt ldw HPPA_FRAME_ARG(0)(%sp), %arg0 76 1.3 matt bv %r0(%rp) 77 1.3 matt stw %arg0, 0(%r1) 78 1.1 fredette 79 1.1 fredette EXIT(sbrk) 80 1.1 fredette 81 1.1 fredette .end 82
Indexes created Fri Sep 26 20:09:58 GMT 2025