1/* $NetBSD: cerror.S,v 1.6 2000/06/14 06:49:03 cgd Exp $ */ 2 3/* 4 * Copyright (c) 1994, 1995 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Chris G. Demetriou 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30#include "SYS.h" 31 32#ifdef _REENTRANT 33#define FRAME_SIZE 16 34#define FRAME_RA_OFFSET 0 35#define FRAME_V0_OFFSET 8 36#endif 37 38#ifdef _REENTRANT 39NESTED(__cerror, 0, FRAME_SIZE, ra, IM_RA|IM_V0, 0) 40#else 41LEAF(__cerror, 0) 42#endif 43 br t0, L1 44L1: LDGP(t0) 45 46#ifdef _REENTRANT 47 lda sp, -FRAME_SIZE(sp) 48 stq ra, FRAME_RA_OFFSET(sp) 49 stq v0, FRAME_V0_OFFSET(sp) 50 51 CALL(__errno) 52 53 ldq t0, FRAME_V0_OFFSET(sp) 54 stl t0, 0(v0) 55#else 56 stl v0, errno 57#endif 58 59 ldiq v0, -1 60#ifdef _REENTRANT 61 ldq ra, FRAME_RA_OFFSET(sp) 62 lda sp, FRAME_SIZE(sp) 63#endif 64 RET 65END(__cerror) 66