/* $NetBSD: cerror.S,v 1.11 2013/09/12 15:36:16 joerg 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: @(#)cerror.s 5.1 (Berkeley) 4/23/90 */ #include <machine/asm.h> #if defined(SYSLIBC_SCCS) && !defined(lint) RCSID("$NetBSD: cerror.S,v 1.11 2013/09/12 15:36:16 joerg Exp $") #endif /* SYSLIBC_SCCS and not lint */ #include "SYS.h" #ifdef _REENTRANT .globl _C_LABEL(__errno) .align 2 cerror: mov.l .L___errno, r1 PIC_PROLOGUE(.L_got) sts.l pr, @-sp 1: CALL r1 mov.l r4, @-sp ! save error code mov.l @sp+, r4 lds.l @sp+, pr PIC_EPILOGUE mov.l r4, @r0 mov #-1, r1 rts mov #-1, r0 .align 2 .L_got: PIC_GOT_DATUM .L___errno: CALL_DATUM(_C_LABEL(__errno), 1b) SET_ASENTRY_SIZE(cerror) #else /* !_REENTRANT */ .globl _C_LABEL(errno) .align 2 cerror: #ifdef __PIC__ mova L_GOT, r0 mov.l L_GOT, r1 add r0, r1 mov.l L_errno, r0 mov.l @(r0, r1), r1 mov.l r4, @r1 #else mov.l L_errno, r1 mov.l r4, @r1 #endif mov #-1, r0 rts mov #-1, r1 .align 2 #ifdef __PIC__ L_GOT: .long _GLOBAL_OFFSET_TABLE_ L_errno: .long _C_LABEL(errno)@GOT #else L_errno: .long _C_LABEL(errno) #endif #endif /* !_REENTRANT */ |