1/* $NetBSD: ptrace.S,v 1.10 1999/10/25 23:48:17 thorpej Exp $ */ 2 3/*- 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * the Systems Programming Group of the University of Utah Computer 9 * Science Department. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 */ 39 40#include "SYS.h" 41 42#if defined(LIBC_SCCS) && !defined(lint) 43#if 0 44 RCSID("from: @(#)ptrace.s 5.1 (Berkeley) 5/12/90") 45#else 46 RCSID("$NetBSD: ptrace.S,v 1.10 1999/10/25 23:48:17 thorpej Exp $") 47#endif 48#endif /* LIBC_SCCS and not lint */ 49 50#ifdef _REENTRANT 51 .globl _C_LABEL(__errno) 52#else 53 .globl _C_LABEL(errno) 54#endif 55 56ENTRY(ptrace) 57#ifdef _REENTRANT 58#if defined(PIC) && !defined(__ELF__) 59 movl #_C_LABEL(_GLOBAL_OFFSET_TABLE_),%a0 60 lea %pc@(0,%a0:l),%a0 61 movl %a0@(_C_LABEL(__errno):l),%a0 62 jsr %a0@ 63#else 64 jbsr PIC_PLT(_C_LABEL(__errno)) 65#endif /* PIC */ 66#ifndef __SVR4_ABI__ 67 movl %d0,%a0 68#endif 69 clrl %a0@ 70#else 71#ifdef PIC 72#ifdef __ELF__ 73 lea %pc@(_GLOBAL_OFFSET_TABLE_@GOTPC),%a0 74 movl %a0@(_C_LABEL(errno)@GOT:w),%a0 75#else 76 movl #_C_LABEL(_GLOBAL_OFFSET_TABLE_),%a0 77 lea %pc@(0,%a0:l),%a0 78 movl %a0@(_C_LABEL(errno):w),%a0 79#endif 80 clrl %a0@ 81#else 82 clrl _C_LABEL(errno) 83#endif /* PIC */ 84#endif /* _REENTRANT */ 85 movl #SYS_ptrace,%d0 86 trap #0 87 jcs err 88 rts 89err: 90 jra PIC_PLT(CERROR) 91