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/* $NetBSD: ptrace.S,v 1.7 2003/08/07 16:42:04 agc Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* 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>
__FBSDID("$FreeBSD$");
#include "SYS.h"
ENTRY(ptrace)
#ifdef _REENTRANT
stmfd sp!, {r0-r3, lr}
sub sp, sp, #4 /* align stack */
bl PIC_SYM(_C_LABEL(__errno), PLT)
add sp, sp, #4 /* unalign stack */
mov r1, #0x00000000
str r1, [r0]
ldmfd sp!, {r0-r3, lr}
#else
stmfd sp!, {r0, r1}
#ifdef PIC
/* Setup the GOT */
ldr r0, .Lgot
add r0, pc, r0
.L1:
ldr r1, .Lerrno
ldr r1, [r0, r1]
#else
ldr r1, .Lerrno
#endif /* PIC */
mov r0, #0x00000000
str r0, [r1]
ldmfd sp!, {r0, r1}
#endif /* _REENTRANT */
SYSTRAP(ptrace)
bcs PIC_SYM(CERROR, PLT)
mov pc, lr
#ifndef _REENTRANT
#ifdef PIC
.align 0
.Lgot:
.word _C_LABEL(_GLOBAL_OFFSET_TABLE_) + (. - (.L1+4))
#endif /* PIC */
.Lerrno:
.word PIC_SYM(_C_LABEL(errno), GOT)
#endif /* !_REENTRANT */
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