Annotation of src/lib/libc/arch/sh3/SYS.h, Revision 1.9
1.1 msaitoh 1: /*-
2: * Copyright (c) 1990 The Regents of the University of California.
3: * All rights reserved.
4: *
5: * This code is derived from software contributed to Berkeley by
6: * William Jolitz.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.6 agc 16: * 3. Neither the name of the University nor the names of its contributors
1.1 msaitoh 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: *
32: * from: @(#)SYS.h 5.5 (Berkeley) 5/7/91
1.9 ! uwe 33: * $NetBSD: SYS.h,v 1.8 2006/01/06 03:58:31 uwe Exp $
1.1 msaitoh 34: */
35:
36: #include <machine/asm.h>
37: #include <sys/syscall.h>
38:
1.4 wiz 39: #ifdef __STDC__
1.1 msaitoh 40: #define SYSTRAP(x) \
41: mov.l 903f, r0; \
42: .long 0xc380; /* trapa #0x80 */ \
43: bra 904f; \
1.7 uwe 44: nop; \
1.1 msaitoh 45: .align 2; \
46: 903: .long (SYS_ ## x); \
47: 904:
1.4 wiz 48: #else
49: #define SYSTRAP(x) \
50: mov.l 903f, r0; \
51: trapa #0x80; \
52: bra 904f; \
1.7 uwe 53: nop; \
1.4 wiz 54: .align 2; \
55: 903: .long (SYS_/**/x); \
56: 904:
57: #endif
1.1 msaitoh 58:
59: #define _SYSCALL_NOERROR(x,y) \
60: ENTRY(x); \
61: SYSTRAP(y)
62:
1.5 marcus 63: #ifdef PIC
1.8 uwe 64:
65: #define JUMP_CERROR \
66: mov r0, r4; \
67: mov.l 912f, r1; \
68: mova 912f, r0; \
69: mov.l 913f, r2; \
70: add r1, r0; \
71: mov.l @(r0, r2), r3; \
72: jmp @r3; \
1.7 uwe 73: nop; \
1.5 marcus 74: .align 2; \
1.8 uwe 75: 912: .long _GLOBAL_OFFSET_TABLE_; \
76: 913: .long PIC_GOT(cerror)
77:
78: #else /* !PIC */
79:
80: #define JUMP_CERROR \
81: mov.l 912f, r3; \
82: jmp @r3; \
83: mov r0, r4; \
84: .align 2; \
85: 912: .long cerror
86:
87: #endif /* !PIC */
88:
1.1 msaitoh 89: #define _SYSCALL(x,y) \
90: .text; \
1.8 uwe 91: 911: JUMP_CERROR; \
1.1 msaitoh 92: _SYSCALL_NOERROR(x,y); \
1.9 ! uwe 93: bf 911b
1.1 msaitoh 94:
95: #define SYSCALL_NOERROR(x) \
96: _SYSCALL_NOERROR(x,x)
97:
98: #define SYSCALL(x) \
99: _SYSCALL(x,x)
100:
101: #define PSEUDO_NOERROR(x,y) \
102: _SYSCALL_NOERROR(x,y); \
103: rts; \
1.7 uwe 104: nop
1.1 msaitoh 105:
106: #define PSEUDO(x,y) \
107: _SYSCALL(x,y); \
108: rts; \
1.7 uwe 109: nop
1.1 msaitoh 110:
111: #define RSYSCALL_NOERROR(x) \
112: PSEUDO_NOERROR(x,x)
113:
114: #define RSYSCALL(x) \
115: PSEUDO(x,x)
1.2 thorpej 116:
117: #ifdef WEAK_ALIAS
118: #define WSYSCALL(weak,strong) \
1.7 uwe 119: WEAK_ALIAS(weak,strong); \
120: PSEUDO(strong,weak)
1.2 thorpej 121: #else
122: #define WSYSCALL(weak,strong) \
1.7 uwe 123: PSEUDO(weak,weak)
1.2 thorpej 124: #endif
1.1 msaitoh 125:
126: .globl cerror
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