/* $OpenBSD: md_init.h,v 1.11 2025/01/30 21:41:37 kurt Exp $ */

/*-
 * Copyright (c) 2001 Ross Harvey
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the NetBSD
 *      Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``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 FOUNDATION OR CONTRIBUTORS
 * 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 "#section", \"ax\"     \n" \
        "       call " #func "                  \n" \
        "        nop                            \n" \
        "       .previous")

#define MD_SECTION_PROLOGUE(sect, entry_pt)     \
        __asm (                                 \
        ".section "#sect",\"ax\",@progbits      \n" \
        "       .globl " #entry_pt "            \n" \
        "       .type " #entry_pt ",@function   \n" \
        #entry_pt":                             \n" \
        "       save    %sp, -192, %sp          \n" \
        "       .align 4                        \n" \
        "       /* fall thru */                 \n" \
        "       .previous")


#define MD_SECTION_EPILOGUE(sect)               \
        __asm (                                 \
        ".section "#sect",\"ax\",@progbits      \n" \
        "       ret                             \n" \
        "        restore                        \n" \
        "       .previous")


#define MD_CRT0_START                           \
        __asm__(                                \
        ".text                                  \n" \
        "       .align  4                       \n" \
        "       .global _start                  \n" \
        "       .global __start                 \n" \
        "_start:                                \n" \
        "__start:                               \n" \
        "       clr     %fp                     \n" \
        "       add     %sp, 2175, %o0  /* stack */\n" \
        "       ba,pt   %icc, ___start          \n" \
        "        mov    %g1, %o1                \n" \
        "       .previous")

#define MD_RCRT0_START                          \
        __asm__(                                \
        ".text                                  \n" \
        "       .align  4                       \n" \
        "       .global _start                  \n" \
        "       .global __start                 \n" \
        "_start:                                \n" \
        "__start:                               \n" \
        "       clr     %fp                     \n" \
        "       sub     %sp, 48 + 16*8, %sp     \n" \
        "       add     %sp, 2223, %l3          \n" \
        "       add     %l3, 16*8, %o0          \n" \
        "       mov     %o0, %l0                \n" \
        "       call    0f                      \n" \
        "        nop                            \n" \
        "       call    _DYNAMIC+8              \n" \
        "0:     ld      [%o7+8], %o2            \n" \
        "       sll     %o2, 2, %o2             \n" \
        "       sra     %o2, 0, %o2             \n" \
        "       add     %o2, %o7, %o2           \n" \
        "       call    _dl_boot_bind           \n" \
        "        mov    %l3, %o1                \n" \
        "       add     %sp, 48 + 16*8, %sp     \n" \
        "       add     %sp, 2175, %o0  /* stack */\n" \
        "       ba,pt   %icc, ___start          \n" \
        "        clr    %o1                     \n" \
        "                                       \n" \
        "       .global _csu_abort              \n" \
        "_csu_abort:                            \n" \
        "       unimp                           \n" \
        "       .previous")


#define MD_START_ARGS           char **sp, void (*cleanup)(void)
#define MD_START_SETUP                          \
        char **argv, **envp;                    \
        long argc;                              \
                                                \
        argc = *(long *)sp;                     \
        argv = sp + 1;                          \
        envp = sp + 2 + argc;           /* 2: argc + NULL ending argv */