1/* $NetBSD: ptrace.S,v 1.9 2003/08/07 16:42:17 agc Exp $ */ 2 3/*- 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Ralph Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35#include <machine/asm.h>
| 1/* $NetBSD: ptrace.S,v 1.9 2003/08/07 16:42:17 agc Exp $ */ 2 3/*- 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Ralph Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35#include <machine/asm.h>
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36__FBSDID("$FreeBSD: head/lib/libc/mips/sys/ptrace.S 203475 2010-02-04 05:49:59Z neel $");
| 36__FBSDID("$FreeBSD: head/lib/libc/mips/sys/ptrace.S 209231 2010-06-16 12:55:14Z jchandra $");
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37#include "SYS.h" 38 39#if defined(LIBC_SCCS) && !defined(lint) 40 ASMSTR("from: @(#)ptrace.s 8.1 (Berkeley) 6/4/93") 41 ASMSTR("$NetBSD: ptrace.S,v 1.9 2003/08/07 16:42:17 agc Exp $") 42#endif /* LIBC_SCCS and not lint */ 43
| 37#include "SYS.h" 38 39#if defined(LIBC_SCCS) && !defined(lint) 40 ASMSTR("from: @(#)ptrace.s 8.1 (Berkeley) 6/4/93") 41 ASMSTR("$NetBSD: ptrace.S,v 1.9 2003/08/07 16:42:17 agc Exp $") 42#endif /* LIBC_SCCS and not lint */ 43
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44LEAF(ptrace) 45 .frame sp, 40, ra 46 .mask 0x80000000, -8 47#ifdef __ABICALLS__ 48 .set noreorder 49 .cpload t9 50 .set reorder 51#endif 52 subu sp, sp, 40 53 sw ra, 32(sp) 54#ifdef __ABICALLS__ 55 .cprestore 16 56#endif 57 la t9, _C_LABEL(__error) # locate address of errno 58 jalr t9 59#ifdef __ABICALLS__ 60 lw gp, 16(sp) 61#endif 62 sw zero, 0(v0) 63 lw ra, 32(sp) 64 addu sp, sp, 40 65 li v0, SYS_ptrace
| 44NESTED_NOPROFILE(ptrace, CALLFRAME_SIZ, ra) 45 .mask 0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ) 46 SETUP_GP 47 PTR_SUBU sp, sp, CALLFRAME_SIZ 48 SETUP_GP64(CALLFRAME_GP, ptrace) 49 SAVE_GP(CALLFRAME_GP) 50 51 PTR_S ra, CALLFRAME_RA(sp) 52 53 PTR_LA t9, _C_LABEL(__error) # locate address of errno 54 jalr t9 55 56 PTR_L ra, CALLFRAME_RA(sp) 57 INT_S zero, 0(v0) # update errno value 58 59 li v0, SYS_ptrace
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66 syscall
| 60 syscall
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67 bne a3, zero, 1f 68 j ra 691: 70 la t9, _C_LABEL(__cerror) 71 jr t9
| 61 62 # Load __cerror's address using our gp, then restore it. 63 PTR_LA t9, __cerror 64 RESTORE_GP64 65 PTR_ADDU sp, sp, CALLFRAME_SIZ 66 67 bne a3, zero, 1f 68 69 j ra 701: j t9
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72END(ptrace)
| 71END(ptrace)
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