204 lines
5.1 KiB
C
204 lines
5.1 KiB
C
/* $NetBSD: asm.h,v 1.14 1998/12/02 00:58:43 thorpej Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell.
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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 University of
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* California, Berkeley and its contributors.
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* 4. 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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* @(#)machAsmDefs.h 8.1 (Berkeley) 6/10/93
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*/
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/*
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* machAsmDefs.h --
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*
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* Macros used when writing assembler programs.
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*
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* Copyright (C) 1989 Digital Equipment Corporation.
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright notice appears in all copies.
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* Digital Equipment Corporation makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machAsmDefs.h,
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* v 1.2 89/08/15 18:28:24 rab Exp SPRITE (DECWRL)
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*/
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#ifndef _MIPS_ASM_H
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#define _MIPS_ASM_H
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#include <machine/regdef.h>
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/*
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* Define -pg profile entry code.
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* XXX assume .set noreorder for kernel, .set reorder for user code.
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*/
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#define _KERN_MCOUNT \
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.set noat; \
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move $1,$31; \
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jal _mcount; \
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subu sp,sp,8; \
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.set at;
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#ifdef GPROF
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# if defined(_KERNEL) || defined(_LOCORE)
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# define MCOUNT _KERN_MCOUNT
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# else
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# define MCOUNT .set noreorder; _KERN_MCOUNT ; .set reorder;
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# endif
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#else
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#define MCOUNT
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#endif
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#ifdef __NO_LEADING_UNDERSCORES__
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# define _C_LABEL(x) x
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#else
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# ifdef __STDC__
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# define _C_LABEL(x) _ ## x
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# else
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# define _C_LABEL(x) _/**/x
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# endif
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#endif
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/*
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* WARN_REFERENCES: create a warning if the specified symbol is referenced
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* (ELF only, and thus, no leading underscores).
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*/
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#ifdef __ELF__
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#ifdef __STDC__
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#define WARN_REFERENCES(_sym,_msg) \
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.section .gnu.warning. ## _sym ; .ascii _msg ; .text
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#else
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#define WARN_REFERENCES(_sym,_msg) \
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.section .gnu.warning./**/_sym ; .ascii _msg ; .text
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#endif /* __STDC__ */
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#endif /* __ELF__ */
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/*
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* LEAF(x)
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*
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* Declare a leaf routine.
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*/
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#define LEAF(x) \
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.globl _C_LABEL(x); \
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.ent _C_LABEL(x), 0; \
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_C_LABEL(x): ; \
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.frame sp, 0, ra; \
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MCOUNT
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/*
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* NLEAF(x)
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*
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* Declare a non-profiled leaf routine.
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*/
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#define NLEAF(x) \
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.globl _C_LABEL(x); \
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.ent _C_LABEL(x), 0; \
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_C_LABEL(x): ; \
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.frame sp, 0, ra
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/*
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* ALEAF -- declare alternate entry to a leaf routine.
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*/
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#ifdef USE_AENT
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#define AENT(x) \
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.aent x, 0
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#else
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#define AENT(x)
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#endif
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#define ALEAF(x) \
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.globl _C_LABEL(x); \
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AENT (_C_LABEL(x)) \
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_C_LABEL(x):
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/*
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* NON_LEAF(x)
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*
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* Declare a non-leaf routine (a routine that makes other C calls).
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*/
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#define NON_LEAF(x, fsize, retpc) \
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.globl _C_LABEL(x); \
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.ent _C_LABEL(x), 0; \
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_C_LABEL(x): ; \
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.frame sp, fsize, retpc; \
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MCOUNT
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/*
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* NNON_LEAF(x)
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*
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* Declare a non-profiled non-leaf routine
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* (a routine that makes other C calls).
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*/
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#define NNON_LEAF(x, fsize, retpc) \
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.globl _C_LABEL(x); \
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.ent _C_LABEL(x), 0; \
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_C_LABEL(x): ; \
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.frame sp, fsize, retpc
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/*
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* END(x)
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*
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* Mark end of a procedure.
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*/
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#define END(x) \
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.end _C_LABEL(x)
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#define STAND_FRAME_SIZE 24
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#define STAND_RA_OFFSET 20
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/*
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* Macros to panic and printf from assembly language.
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*/
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#define PANIC(msg) \
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la a0, 9f; \
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jal _C_LABEL(panic); \
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MSG(msg)
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#define PRINTF(msg) \
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la a0, 9f; \
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jal _C_LABEL(printf); \
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MSG(msg)
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#define MSG(msg) \
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.rdata; \
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9: .asciiz msg; \
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.text
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#define ASMSTR(str) \
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.asciiz str; \
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.align 3
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#endif /* _MIPS_ASM_H */
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