FreeBSD/Linux Kernel Cross Reference
sys/mips/include/abi.h
1 /* $NetBSD: asm.h,v 1.29 2000/12/14 21:29:51 jeffs Exp $ */
2
3 /*
4 * SPDX-License-Identifier: BSD-3-Clause
5 *
6 * Copyright (c) 1992, 1993
7 * The Regents of the University of California. All rights reserved.
8 *
9 * This code is derived from software contributed to Berkeley by
10 * Ralph Campbell.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * @(#)machAsmDefs.h 8.1 (Berkeley) 6/10/93
37 * JNPR: asm.h,v 1.10 2007/08/09 11:23:32 katta
38 * $FreeBSD$
39 */
40
41 /*
42 * machAsmDefs.h --
43 *
44 * Macros used when writing assembler programs.
45 *
46 * Copyright (C) 1989 Digital Equipment Corporation.
47 * Permission to use, copy, modify, and distribute this software and
48 * its documentation for any purpose and without fee is hereby granted,
49 * provided that the above copyright notice appears in all copies.
50 * Digital Equipment Corporation makes no representations about the
51 * suitability of this software for any purpose. It is provided "as is"
52 * without express or implied warranty.
53 *
54 * from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machAsmDefs.h,
55 * v 1.2 89/08/15 18:28:24 rab Exp SPRITE (DECWRL)
56 */
57
58 #ifndef _MACHINE_ABI_H_
59 #define _MACHINE_ABI_H_
60
61 #if defined(__mips_o32)
62 #define SZREG 4
63 #else
64 #define SZREG 8
65 #endif
66
67 #if defined(__mips_o32) || defined(__mips_o64)
68 #define STACK_ALIGN 8
69 #else
70 #define STACK_ALIGN 16
71 #endif
72
73 /*
74 * standard callframe {
75 * register_t cf_pad[N]; o32/64 (N=0), n32 (N=1) n64 (N=1)
76 * register_t cf_args[4]; arg0 - arg3 (only on o32 and o64)
77 * register_t cf_gp; global pointer (only on n32 and n64)
78 * register_t cf_sp; frame pointer
79 * register_t cf_ra; return address
80 * };
81 */
82 #if defined(__mips_o32) || defined(__mips_o64)
83 #define CALLFRAME_SIZ (SZREG * (4 + 2))
84 #define CALLFRAME_S0 0
85 #elif defined(__mips_n32) || defined(__mips_n64)
86 #define CALLFRAME_SIZ (SZREG * 4)
87 #define CALLFRAME_S0 (CALLFRAME_SIZ - 4 * SZREG)
88 #endif
89 #ifndef _KERNEL
90 #define CALLFRAME_GP (CALLFRAME_SIZ - 3 * SZREG)
91 #endif
92 #define CALLFRAME_SP (CALLFRAME_SIZ - 2 * SZREG)
93 #define CALLFRAME_RA (CALLFRAME_SIZ - 1 * SZREG)
94
95 #endif /* !_MACHINE_ABI_H_ */
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