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80 lines
2.8 KiB
C
Vendored
80 lines
2.8 KiB
C
Vendored
/* $OpenBSD: md_init.h,v 1.11 2023/11/18 16:26:16 deraadt Exp $ */
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/*-
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* Copyright (c) 2001 Ross Harvey
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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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* 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#define MD_SECT_CALL_FUNC(section, func) \
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__asm (".section "#section", \"ax\"\n" \
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" call " #func "\n" \
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" .previous")
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#define MD_SECTION_PROLOGUE(sect, entry_pt) \
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__asm ( \
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".section "#sect",\"ax\",@progbits \n" \
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" .globl " #entry_pt " \n" \
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" .type " #entry_pt ",@function \n" \
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" .align 16 \n" \
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#entry_pt": \n" \
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" endbr64 \n" \
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" subq $8,%rsp \n" \
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" .previous")
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#define MD_SECTION_EPILOGUE(sect) \
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__asm ( \
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".section "#sect",\"ax\",@progbits \n" \
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" addq $8,%rsp \n" \
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" ret \n" \
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" .previous")
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#define MD_CRT0_START \
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__asm( \
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".text \n" \
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" .align 8 \n" \
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" .globl __start \n" \
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" .globl _start \n" \
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"_start: \n" \
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"__start: \n" \
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" endbr64 \n" \
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" movq %rdx,%rcx \n" \
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" movq (%rsp),%rdi \n" \
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" leaq 16(%rsp,%rdi,8),%rdx \n" \
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" leaq 8(%rsp),%rsi \n" \
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" subq $8,%rsp \n" \
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" andq $~15,%rsp \n" \
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" addq $8,%rsp \n" \
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" jmp ___start \n" \
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" .previous")
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/* zig patch: no static crt support */
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