minix/lib/nbsd_libc/arch/sh3/sys/ptrace.S
Gianluca Guida b6cbf7203b Import unmodified NetBSD libc in trunk
This patch imports the unmodified current version of NetBSD libc.
The NetBSD includes are in /nbsd_include, while the libc code itself is 
split between lib/nbsd_libc and common/lib/libc.
2011-02-14 19:36:03 +00:00

111 lines
2.9 KiB
ArmAsm

/* $NetBSD: ptrace.S,v 1.8 2006/01/06 20:38:01 uwe Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: @(#)ptrace.s 5.1 (Berkeley) 4/23/90
*/
#include <machine/asm.h>
#if defined(SYSLIBC_SCCS) && !defined(lint)
RCSID("$NetBSD: ptrace.S,v 1.8 2006/01/06 20:38:01 uwe Exp $")
#endif /* SYSLIBC_SCCS and not lint */
#include "SYS.h"
/*
* int
* ptrace(int request, pid_t pid, caddr_t addr, int data);
*/
ENTRY(ptrace)
#ifdef _REENTRANT
mov.l .L___errno, r1
PIC_PROLOGUE(.L_GOT)
sts.l pr, @-sp
mov.l r7, @-sp
mov.l r6, @-sp
mov.l r5, @-sp
1: CALL r1
mov.l r4, @-sp
mov.l @sp+, r4
mov.l @sp+, r5
mov.l @sp+, r6
mov.l @sp+, r7
lds.l @sp+, pr
PIC_EPILOGUE
#else /* ! _REENTRANT */
#ifdef PIC
mova .L_GOT, r0
mov.l .L_GOT, r1
add r0, r1
mov.l .L_errno, r0
mov.l @(r0, r1), r0
#else
mov.l .L_errno, r0
#endif
#endif /* ! _REENTRANT */
mov #0, r1
mov.l r1, @r0 /* errno = 0; */
mov #SYS_ptrace, r0
trapa #0x80
bf err
rts
nop
err:
JUMP_CERROR
.align 2
.L_GOT:
PIC_GOT_DATUM
#ifdef _REENTRANT
.global _C_LABEL(__errno)
.L___errno:
CALL_DATUM(_C_LABEL(__errno), 1b)
#else /* ! _REENTRANT */
.global _C_LABEL(errno)
.L_errno:
#ifdef PIC
.long PIC_GOT(_C_LABEL(errno))
#else
.long _C_LABEL(errno)
#endif
#endif /* ! _REENTRANT */
SET_ENTRY_SIZE(ptrace)