Annotation of src/lib/libc/arch/x86_64/SYS.h, Revision 1.11
1.1 fvdl 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 fvdl 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
1.11 ! joerg 33: * $NetBSD: SYS.h,v 1.10 2007/11/23 07:36:05 dsl Exp $
1.1 fvdl 34: */
35:
36: #include <machine/asm.h>
37: #include <sys/syscall.h>
38:
1.4 wiz 39: #ifdef __STDC__
1.5 fvdl 40: #define SYSTRAP(x) movl $(SYS_ ## x),%eax; movq %rcx, %r10; syscall
1.4 wiz 41: #else
1.5 fvdl 42: #define SYSTRAP(x) movl $(SYS_/**/x),%eax; movq %rcx, %r10; syscall
1.4 wiz 43: #endif
1.1 fvdl 44:
45: #define CERROR _C_LABEL(__cerror)
46: #define CURBRK _C_LABEL(__curbrk)
47:
48: #define _SYSCALL_NOERROR(x,y) \
49: ENTRY(x); \
50: SYSTRAP(y)
51:
1.10 dsl 52: #define _SYSCALL_ERR \
53: jmp CERROR
54:
1.1 fvdl 55: #define _SYSCALL(x,y) \
56: .text; _ALIGN_TEXT; \
1.10 dsl 57: 2: _SYSCALL_ERR; \
1.1 fvdl 58: _SYSCALL_NOERROR(x,y); \
59: jc 2b
60:
61: #define SYSCALL_NOERROR(x) \
62: _SYSCALL_NOERROR(x,x)
63:
64: #define SYSCALL(x) \
65: _SYSCALL(x,x)
1.7 fvdl 66:
1.1 fvdl 67: #define PSEUDO_NOERROR(x,y) \
68: _SYSCALL_NOERROR(x,y); \
69: ret
70:
71: #define PSEUDO(x,y) \
1.10 dsl 72: _SYSCALL_NOERROR(x,y); \
73: jc 2f; \
74: ret; \
75: 2: _SYSCALL_ERR
1.1 fvdl 76:
77: #define RSYSCALL_NOERROR(x) \
78: PSEUDO_NOERROR(x,x)
79:
80: #define RSYSCALL(x) \
81: PSEUDO(x,x)
82:
1.2 thorpej 83: #define WSYSCALL(weak,strong) \
84: WEAK_ALIAS(weak,strong); \
85: PSEUDO(strong,weak)
1.1 fvdl 86:
87: .globl CERROR
CVSweb <webmaster@jp.NetBSD.org>