/* $NetBSD: cerror.S,v 1.13 2003/08/07 16:42:17 agc Exp $ */ /*- * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Ralph Campbell. * * 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. */ #include "SYS.h" #if defined(LIBC_SCCS) && !defined(lint) ASMSTR("from: @(#)cerror.s 8.1 (Berkeley) 6/16/93") ASMSTR("$NetBSD: cerror.S,v 1.13 2003/08/07 16:42:17 agc Exp $") #endif /* LIBC_SCCS and not lint */ #ifdef _REENTRANT .globl _C_LABEL(__errno) NESTED_NOPROFILE(__cerror, CALLFRAME_SIZ, ra) PIC_PROLOGUE(__cerror, t9) subu sp, sp, CALLFRAME_SIZ .mask 0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ) sw ra, CALLFRAME_RA(sp) sw v0, 12(sp) # save errno value la t9, _C_LABEL(__errno) # locate address of errno jalr t9 lw t0, 12(sp) lw ra, CALLFRAME_RA(sp) sw t0, 0(v0) # update errno value addiu sp, sp, CALLFRAME_SIZ li v0, -1 li v1, -1 j ra END(__cerror) #else .globl _C_LABEL(errno) LEAF_NOPROFILE(__cerror) .set noreorder #ifdef __ABICALLS__ .cpload t9 #endif sw v0, _C_LABEL(errno) li v0, -1 j ra li v1, -1 END(__cerror) #endif /* _REENTRANT */