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. 16 * 4. Neither the name of the University nor the names of its contributors 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 * @(#)SYS.h 5.5 (Berkeley) 5/7/91 33 * $FreeBSD: stable/10/lib/libc/i386/SYS.h 240152 2012-09-05 21:41:05Z jilles $ 34 */ 35 36 #include <sys/syscall.h> 37 #include <machine/asm.h> 38 39 #define SYSCALL(x) ENTRY(__CONCAT(__sys_,x)); \ 40 .weak CNAME(x); \ 41 .set CNAME(x),CNAME(__CONCAT(__sys_,x)); \ 42 .weak CNAME(__CONCAT(_,x)); \ 43 .set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \ 44 mov __CONCAT($SYS_,x),%eax; KERNCALL; \ 45 jb HIDENAME(cerror) 46 47 #define RSYSCALL(x) SYSCALL(x); ret; END(__CONCAT(__sys_,x)) 48 49 #define PSEUDO(x) ENTRY(__CONCAT(__sys_,x)); \ 50 .weak CNAME(__CONCAT(_,x)); \ 51 .set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \ 52 mov __CONCAT($SYS_,x),%eax; KERNCALL; \ 53 jb HIDENAME(cerror); ret; \ 54 END(__CONCAT(__sys_,x)) 55 56 /* gas messes up offset -- although we don't currently need it, do for BCS */ 57 #define LCALL(x,y) .byte 0x9a ; .long y; .word x 58 59 #define KERNCALL int $0x80 60