1/* $OpenBSD: cerror.S,v 1.4 2011/04/04 12:42:39 guenther Exp $ */ 2/* $NetBSD: cerror.S,v 1.5 2003/08/07 16:42:04 agc Exp $ */ 3 4/*- 5 * Copyright (c) 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * from: @(#)cerror.s 5.1 (Berkeley) 4/23/90 33 */ 34 35#include "SYS.h" 36 37WEAK_ALIAS(CERROR, _CERROR) 38 39ASENTRY(_CERROR) 40#ifdef _REENTRANT 41 stmfd sp!, {r4, lr} 42 mov r4, r0 43 bl PIC_SYM(_C_LABEL(__errno), PLT) 44 str r4, [r0] 45 mvn r0, #0x00000000 46 mvn r1, #0x00000000 47 ldmfd sp!, {r4, pc} 48#else 49#ifdef PIC 50 /* Setup the GOT */ 51 ldr r3, .Lgot 52 ldr r1, .Lerrno 53.L1: 54 add r3, pc, r3 55 ldr r1, [r3, r1] 56#else 57 ldr r1, .Lerrno 58#endif /* PIC */ 59 str r0, [r1] 60 mvn r0, #0x00000000 61 mvn r1, #0x00000000 62 mov pc, lr 63 64#ifdef PIC 65 .align 0 66.Lgot: 67 .word _C_LABEL(_GLOBAL_OFFSET_TABLE_) - (.L1+8) 68#endif /* PIC */ 69 70 .globl _C_LABEL(errno) 71 72.Lerrno: 73 .word PIC_SYM(_C_LABEL(errno), GOT) 74#endif /* _REENTRANT */ 75