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
| 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
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33 * $FreeBSD: head/lib/libc/i386/SYS.h 171217 2007-07-04 23:18:38Z peter $
| 33 * $FreeBSD: head/lib/libc/i386/SYS.h 184548 2008-11-02 01:28:47Z peter $
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34 */ 35 36#include <sys/syscall.h> 37#include <machine/asm.h> 38 39#define SYSCALL(x) 2: PIC_PROLOGUE; jmp PIC_PLT(HIDENAME(cerror)); \ 40 ENTRY(__CONCAT(__sys_,x)); \ 41 .weak CNAME(x); \ 42 .set CNAME(x),CNAME(__CONCAT(__sys_,x)); \ 43 .weak CNAME(__CONCAT(_,x)); \ 44 .set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \ 45 mov __CONCAT($SYS_,x),%eax; KERNCALL; jb 2b 46
| 34 */ 35 36#include <sys/syscall.h> 37#include <machine/asm.h> 38 39#define SYSCALL(x) 2: PIC_PROLOGUE; jmp PIC_PLT(HIDENAME(cerror)); \ 40 ENTRY(__CONCAT(__sys_,x)); \ 41 .weak CNAME(x); \ 42 .set CNAME(x),CNAME(__CONCAT(__sys_,x)); \ 43 .weak CNAME(__CONCAT(_,x)); \ 44 .set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \ 45 mov __CONCAT($SYS_,x),%eax; KERNCALL; jb 2b 46
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47#define RSYSCALL(x) SYSCALL(x); ret
| 47#define RSYSCALL(x) SYSCALL(x); ret; END(__CONCAT(__sys_,x))
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48 49#define PSEUDO(x) 2: PIC_PROLOGUE; jmp PIC_PLT(HIDENAME(cerror)); \ 50 ENTRY(__CONCAT(__sys_,x)); \ 51 .weak CNAME(__CONCAT(_,x)); \ 52 .set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \
| 48 49#define PSEUDO(x) 2: PIC_PROLOGUE; jmp PIC_PLT(HIDENAME(cerror)); \ 50 ENTRY(__CONCAT(__sys_,x)); \ 51 .weak CNAME(__CONCAT(_,x)); \ 52 .set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \
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53 mov __CONCAT($SYS_,x),%eax; KERNCALL; jb 2b; ret
| 53 mov __CONCAT($SYS_,x),%eax; KERNCALL; jb 2b; ret; \ 54 END(__CONCAT(__sys_,x))
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54 55/* gas messes up offset -- although we don't currently need it, do for BCS */ 56#define LCALL(x,y) .byte 0x9a ; .long y; .word x 57 58#define KERNCALL int $0x80
| 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
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