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/* $OpenBSD: md_init.h,v 1.5 2013/12/20 16:23:43 tobiasu Exp $ */
/*
* Copyright (c) 2003 Dale Rahn. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define MD_SECT_CALL_FUNC(section, func) \
__asm (".section .rodata \n" \
" .align 8 \n" \
"L$" #func " \n" \
" .dword "#func " \n" \
" .previous \n" \
" .section "#section",\"ax\",@progbits \n" \
" addil LR'L$" #func "-$global$, %dp \n" \
" ldd RR'L$" #func "-$global$(%r1), %r1\n" \
" bve,l (%r1), %rp \n" \
" std %dp,-80(%sp) \n" \
" ldd -80(%sp),%dp \n" \
" .previous")
#define MD_SECTION_PROLOGUE(sect, entry_pt) \
__asm ( \
" .section "#sect",\"ax\",@progbits \n" \
" .EXPORT "#entry_pt",ENTRY,PRIV_LEV=3,ARGW0=NO,ARGW1=NO,ARGW2=NO,ARGW3=NO,RTNVAL=NO \n" \
" .align 4 \n" \
#entry_pt" \n" \
" std %rp, -16(%sp) \n" \
" ldo 128(%sp),%sp \n" \
" /* fall thru */ \n" \
" .previous")
#define MD_SECTION_EPILOGUE(sect) \
__asm ( \
" .section "#sect",\"ax\",@progbits \n" \
" ldd -144(%sp),%rp \n" \
" bv %r0(%rp) \n" \
" ldo -128(%sp),%sp \n" \
" .previous")
#include <sys/exec.h> /* for struct psstrings */
/* XXX no cleanup() callback passed to __start yet? */
#define MD_NO_CLEANUP
#define MD_CRT0_START \
__asm( \
".import $global$, data \n" \
" .import ___start, code \n" \
" .text \n" \
" .align 4 \n" \
" .export _start, entry \n" \
" .export __start, entry \n" \
" .type _start,@function \n" \
" .type __start,@function \n" \
" .label _start \n" \
" .label __start \n" \
" .proc \n" \
" .callinfo frame=0, calls \n" \
" .entry \n" \
" ldil L%__gp, %r27 \n" \
" .call \n" \
" b ___start \n" \
" ldo R%__gp(%r27), %r27 \n" \
" .exit \n" \
" .procend")
#define MD_START_ARGS struct ps_strings *arginfo, void (*cleanup)(void)
#define MD_START_SETUP \
char **argv, **envp; \
int argc; \
\
argv = arginfo->ps_argvstr; \
argc = arginfo->ps_nargvstr; \
environ = envp = arginfo->ps_envstr;
#define MD_EPROL_LABEL __asm (".export _eprol, entry\n\t.label _eprol")
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