1/*- 2 * Copyright (c) 1991 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 * @(#)setlogin.s 5.2 (Berkeley) 4/12/91 33 * $FreeBSD: src/lib/libc/amd64/sys/setlogin.S,v 1.14 2008/11/02 01:10:54 peter Exp $ 34 */ 35 36#include <machine/asm.h> 37#include "SYS.h" 38 39.globl CNAME(_logname_valid) /* in _getlogin() */ 40 41 .weak _setlogin 42 .set _setlogin,__sys_setlogin 43 .weak setlogin 44 .set setlogin,__sys_setlogin 45ENTRY(__sys_setlogin) 46 mov $SYS_setlogin,%rax 47 KERNCALL 48 jb 1f 49#ifdef PIC 50 movq PIC_GOT(CNAME(_logname_valid)),%rdx 51 movl $0,(%rdx) 52#else 53 movl $0,CNAME(_logname_valid)(%rip) 54#endif 55 ret /* setlogin(name) */ 561: 57#ifdef PIC 58 movq PIC_GOT(HIDENAME(cerror)),%rdx 59 jmp *%rdx 60#else 61 jmp HIDENAME(cerror) 62#endif 63END(__sys_setlogin) 64 65 .section .note.GNU-stack,"",%progbits 66