c770dc0b63
script to match the one for the EFI loader and rewrite __start() in assembly to have gp defined without getting in the way of the compiler.
65 lines
1.7 KiB
ArmAsm
65 lines
1.7 KiB
ArmAsm
/*
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* Copyright (c) 2003 Marcel Moolenaar
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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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*
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <machine/fpu.h>
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#define STACKSIZE 16384
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#define FPSR_DEFAULT 0x0009804c0270033f
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.text
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.global _start
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.proc _start
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_start:
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{ .mlx
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mov ar.rsc=0
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movl gp=__gp
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;;
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}
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{ .mlx
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add r2=@gprel(stack),gp
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movl r14=FPSR_DEFAULT
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;;
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}
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{ .mib
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mov ar.bspstore=r2
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add r12=STACKSIZE-16,r2
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bsw.1
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;;
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}
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{ .mmb
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mov ar.rsc=3
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mov ar.fpsr=r14
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br.sptk ski_main
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;;
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}
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.endp _start
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.data
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.align 16
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stack: .skip STACKSIZE
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