1993-10-07 03:17:24 +03:00
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/*
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* Copyright (c) 1992 Helsinki University of Technology
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* HELSINKI UNIVERSITY OF TECHNOLOGY ALLOWS FREE USE OF THIS SOFTWARE IN
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* ITS "AS IS" CONDITION. HELSINKI UNIVERSITY OF TECHNOLOGY DISCLAIMS ANY
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* LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE
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* USE OF THIS SOFTWARE.
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*/
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/*
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* HISTORY
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* 29-Apr-92 Johannes Helander (jvh) at Helsinki University of Technology
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* Created.
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*
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1994-06-11 02:46:14 +04:00
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* $Id: sbrk.S,v 1.4 1994/06/10 22:46:16 phil Exp $
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1993-10-07 03:17:24 +03:00
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*/
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#include "SYS.h"
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.data
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1994-05-04 00:39:52 +04:00
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.globl _end
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.globl _curbrk; .type _curbrk, @object; .size _curbrk, 4
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1994-06-11 02:46:14 +04:00
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.globl minbrk; .type minbrk, @object; .size minbrk, 4
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1993-10-07 03:17:24 +03:00
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_curbrk: .long _end
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1994-06-11 02:46:14 +04:00
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minbrk: .long _end
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1994-05-04 00:39:52 +04:00
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1993-10-07 03:17:24 +03:00
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.text
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ENTRY(sbrk)
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1994-05-04 00:39:52 +04:00
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PIC_PROLOGUE
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addd PIC_GOT(_curbrk), PIC_S_ARG0
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PIC_EPILOGUE
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movd SYS_break, r0
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1993-10-07 03:17:24 +03:00
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SVC
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bcs cerror
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1994-05-04 00:39:52 +04:00
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PIC_PROLOGUE
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movd PIC_GOT(_curbrk), r0
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movd PIC_S_ARG0, PIC_GOT(_curbrk) /* XXX check this b */
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PIC_EPILOGUE
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1993-10-07 03:17:24 +03:00
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ret 0
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