xref: /freebsd/lib/libsys/amd64/SYS.h (revision 8269e7673cf033aba67dab8264fe719920c70f87)
1*8269e767SBrooks Davis /*-
2*8269e767SBrooks Davis  * SPDX-License-Identifier: BSD-3-Clause
3*8269e767SBrooks Davis  *
4*8269e767SBrooks Davis  * Copyright (c) 1990 The Regents of the University of California.
5*8269e767SBrooks Davis  * All rights reserved.
6*8269e767SBrooks Davis  *
7*8269e767SBrooks Davis  * This code is derived from software contributed to Berkeley by
8*8269e767SBrooks Davis  * William Jolitz.
9*8269e767SBrooks Davis  *
10*8269e767SBrooks Davis  * Redistribution and use in source and binary forms, with or without
11*8269e767SBrooks Davis  * modification, are permitted provided that the following conditions
12*8269e767SBrooks Davis  * are met:
13*8269e767SBrooks Davis  * 1. Redistributions of source code must retain the above copyright
14*8269e767SBrooks Davis  *    notice, this list of conditions and the following disclaimer.
15*8269e767SBrooks Davis  * 2. Redistributions in binary form must reproduce the above copyright
16*8269e767SBrooks Davis  *    notice, this list of conditions and the following disclaimer in the
17*8269e767SBrooks Davis  *    documentation and/or other materials provided with the distribution.
18*8269e767SBrooks Davis  * 3. Neither the name of the University nor the names of its contributors
19*8269e767SBrooks Davis  *    may be used to endorse or promote products derived from this software
20*8269e767SBrooks Davis  *    without specific prior written permission.
21*8269e767SBrooks Davis  *
22*8269e767SBrooks Davis  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23*8269e767SBrooks Davis  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24*8269e767SBrooks Davis  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25*8269e767SBrooks Davis  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26*8269e767SBrooks Davis  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27*8269e767SBrooks Davis  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28*8269e767SBrooks Davis  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29*8269e767SBrooks Davis  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30*8269e767SBrooks Davis  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31*8269e767SBrooks Davis  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32*8269e767SBrooks Davis  * SUCH DAMAGE.
33*8269e767SBrooks Davis  */
34*8269e767SBrooks Davis 
35*8269e767SBrooks Davis #include <sys/syscall.h>
36*8269e767SBrooks Davis #include <machine/asm.h>
37*8269e767SBrooks Davis 
38*8269e767SBrooks Davis #define	_SYSCALL(name)							\
39*8269e767SBrooks Davis 			mov $SYS_##name, %eax;				\
40*8269e767SBrooks Davis 			movq %rcx, %r10;				\
41*8269e767SBrooks Davis 			syscall
42*8269e767SBrooks Davis 
43*8269e767SBrooks Davis #define	_SYSCALL_BODY(name)						\
44*8269e767SBrooks Davis 			_SYSCALL(name);					\
45*8269e767SBrooks Davis 			jb HIDENAME(cerror);				\
46*8269e767SBrooks Davis 			ret
47*8269e767SBrooks Davis 
48*8269e767SBrooks Davis #define	RSYSCALL(name)	ENTRY(__sys_##name);				\
49*8269e767SBrooks Davis 			WEAK_REFERENCE(__sys_##name, name);		\
50*8269e767SBrooks Davis 			WEAK_REFERENCE(__sys_##name, _##name);		\
51*8269e767SBrooks Davis 			_SYSCALL_BODY(name);				\
52*8269e767SBrooks Davis 			END(__sys_##name)
53*8269e767SBrooks Davis 
54*8269e767SBrooks Davis #define	PSEUDO(name)	ENTRY(__sys_##name);				\
55*8269e767SBrooks Davis 			WEAK_REFERENCE(__sys_##name, _##name);		\
56*8269e767SBrooks Davis 			_SYSCALL_BODY(name);				\
57*8269e767SBrooks Davis 			END(__sys_##name)
58