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/* $OpenBSD: md_init.h,v 1.14 2020/10/14 22:11:19 deraadt 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.
*/
/*
* hppa overrides these because it has different label syntax
*/
#define MD_DATA_SECTION_FLAGS_SYMBOL(section, flags, type, symbol) \
extern __dso_hidden type symbol[]; \
__asm(" .section "section",\""flags"\",@progbits \n" \
" .balign 4 \n" \
#symbol" \n" \
" .previous")
#define MD_DATA_SECTION_SYMBOL_VALUE(section, type, symbol, value) \
extern __dso_hidden type symbol[]; \
__asm(" .section "section",\"aw\",@progbits \n" \
" .balign 4 \n" \
#symbol" \n" \
" .int "#value" \n" \
" .previous")
#define MD_DATA_SECTION_FLAGS_VALUE(section, flags, value) \
__asm(" .section "section",\""flags"\",@progbits \n" \
" .balign 4 \n" \
" .int "#value" \n" \
" .previous")
#define MD_SECT_CALL_FUNC(section, func) \
__asm (".section "#section",\"ax\",@progbits \n" \
" bl " #func ",%r2 \n" \
" stw %r19,-80(%r30) \n" \
" ldw -80(%r30),%r19 \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" \
" stw %r2, -20(%r30) \n" \
" ldo 64(%r30),%r30 \n" \
" /* fall thru */ \n" \
" .previous")
#define MD_SECTION_EPILOGUE(sect) \
__asm ( \
" .section "#sect",\"ax\",@progbits \n" \
" ldw -84(%r30),%r2 \n" \
" bv %r0(%r2) \n" \
" ldo -64(%r30),%r30 \n" \
" .previous")
#include <sys/exec.h> /* for struct ps_strings */
#define MD_CRT0_START \
__asm( \
".import $global$, data \n" \
" .import ___start, code \n" \
" .text \n" \
" .align 4 \n" \
" .export __start, entry \n" \
" .type __start,@function \n" \
" .label __start \n" \
" .proc \n" \
" .callinfo frame=0, calls \n" \
" .entry \n" \
" bl L$lpc, %r27 \n" \
" depi 0, 31, 2, %r27 \n" \
"L$lpc: addil L'$global$ - ($PIC_pcrel$0 - 8), %r27 \n" \
" ldo R'$global$ - ($PIC_pcrel$0 - 12)(%r1),%r27 \n" \
" .call \n" \
" b ___start \n" \
" copy %r27, %r19 \n" \
" .exit \n" \
" .procend")
#define MD_RCRT0_START \
__asm( \
".import $global$, data \n" \
" .import ___start, code \n" \
" .text \n" \
" .align 4 \n" \
" .export __start, entry \n" \
" .type __start,@function \n" \
" .label __start \n" \
" .proc \n" \
" .callinfo frame=0, calls \n" \
" .entry \n" \
" copy %r3, %r1 \n" \
" copy %sp, %r3 \n" \
" stwm %r1, 64+16*4(%sp) \n" \
" stw %arg0, -36(%r3) \n" \
" bl 1f, %dp \n" \
" depi 0, 31, 2, %dp \n" \
"1: addil L'$global$ - ($PIC_pcrel$0 - 8), %dp \n" \
" ldo R'$global$ - ($PIC_pcrel$0 - 12)(%r1), %dp \n" \
" bl 1f, %arg2 \n" \
" depi 0, 31, 2, %arg2 \n" \
"1: addil L'_DYNAMIC - ($PIC_pcrel$0 - 8), %arg2 \n" \
" ldo R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%r1), %arg2 \n" \
" stw %arg2, -40(%r3) \n" \
" ldw 0(%arg0), %arg0 \n" \
" ldo 4(%r3), %arg1 \n" \
" ldo -4(%arg0), %arg0 \n" \
" bl _dl_boot_bind, %rp \n" \
" copy %dp, %r19 \n" \
" ldw -36(%r3), %arg0 \n" \
" copy %r0, %arg1 \n" \
" ldo 64(%r3), %sp \n" \
" ldwm -64(%sp), %r3 \n" \
" .call \n" \
" b ___start \n" \
" copy %dp, %r19 \n" \
" .exit \n" \
" .procend \n" \
" .export _dl_exit, entry \n" \
" .type _dl_exit,@function \n" \
" .label _dl_exit \n" \
" .proc \n" \
" .callinfo frame=0, calls \n" \
" .entry \n" \
"_dl_exit: \n" \
" stw %rp, -24(%sp) \n" \
" ldil L%0xc0000000, %r1 \n" \
" ble 4(%sr7, %r1) \n" \
" ldi " STR(SYS_exit) ", %t1 \n" \
" comb,<> %r0, %t1, 1f \n" \
" ldw -24(%sp), %rp \n" \
" bv %r0(%rp) \n" \
" nop \n" \
"1: bv %r0(%rp) \n" \
" sub %r0, %ret0, %ret0 \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; \
envp = arginfo->ps_envstr;
#define MD_EPROL_LABEL __asm (".export _eprol, entry\n\t.label _eprol")
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