mirror of
https://codeberg.org/ziglang/zig.git
synced 2026-04-29 03:57:08 +03:00
Alex Rønne Petersen
66d97267c7
This excludes all headers in /usr/include/dev because that directory is bonkers huge (18M). We can add these on an as-needed basis.
96 lines
3.5 KiB
C
Vendored
96 lines
3.5 KiB
C
Vendored
/* $OpenBSD: asm.h,v 1.19 2024/03/29 21:05:34 miod Exp $ */
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/* $NetBSD: asm.h,v 1.15 2000/08/02 22:24:39 eeh Exp $ */
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/*
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* Copyright (c) 1994 Allen Briggs
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* All rights reserved.
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*
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* Gleaned from locore.s and sun3 asm.h which had the following copyrights:
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* locore.s:
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1990 The Regents of the University of California.
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* sun3/include/asm.h:
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* Copyright (c) 1993 Adam Glass
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* Copyright (c) 1990 The Regents of the University of California.
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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. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _MACHINE_ASM_H_
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#define _MACHINE_ASM_H_
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/* Pull in CC64FSZ and BIAS from frame.h */
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#include <machine/frame.h>
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#define _C_LABEL(name) name
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#define _ASM_LABEL(name) name
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#ifdef __PIC__
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/*
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* PIC_PROLOGUE() is akin to the compiler generated function prologue for
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* PIC code. It leaves the address of the Global Offset Table in DEST,
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* clobbering register TMP in the process. Using the temporary enables us
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* to work without a stack frame (doing so requires saving %o7) .
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*/
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#define PIC_PROLOGUE(dest,tmp) \
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sethi %hi(_GLOBAL_OFFSET_TABLE_-4),dest; \
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rd %pc, tmp; \
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or dest,%lo(_GLOBAL_OFFSET_TABLE_+4),dest; \
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add dest,tmp,dest
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#else
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#define PIC_PROLOGUE(dest,tmp)
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#endif
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#define FTYPE(x) .type x,@function
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#define OTYPE(x) .type x,@object
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#define _ENTRY_NB(name) \
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.align 4; .proc 1; FTYPE(name); name:
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#define _ENTRY(name) .globl name; _ENTRY_NB(name)
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#if defined(PROF) || defined(GPROF)
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#define _PROF_PROLOGUE \
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.data; .align 8; 1: .uaword 0; .uaword 0; \
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.text; save %sp,-CC64FSZ,%sp; sethi %hi(1b),%o0; call _mcount; \
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or %o0,%lo(1b),%o0; restore
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#else
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#define _PROF_PROLOGUE
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#endif
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#define ENTRY(name) _ENTRY(name); _PROF_PROLOGUE
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#define NENTRY(name) _ENTRY(name)
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#define ENTRY_NB(name) _ENTRY_NB(name); _PROF_PROLOGUE
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#define ASENTRY(name) _ENTRY(name); _PROF_PROLOGUE
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#define FUNC(name) ASENTRY(name)
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#define END(y) .size y, . - y
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#define STRONG_ALIAS(alias,sym) \
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.global alias; \
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alias = sym
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#define WEAK_ALIAS(alias,sym) \
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.weak alias; \
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alias = sym
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#endif /* _MACHINE_ASM_H_ */ |