1*84d9c625SLionel Sambuc/* $NetBSD: cerror.S,v 1.13 2013/11/30 20:20:42 joerg Exp $ */ 22fe8fb19SBen Gras 32fe8fb19SBen Gras/*- 42fe8fb19SBen Gras * Copyright (c) 1990 The Regents of the University of California. 52fe8fb19SBen Gras * All rights reserved. 62fe8fb19SBen Gras * 72fe8fb19SBen Gras * Redistribution and use in source and binary forms, with or without 82fe8fb19SBen Gras * modification, are permitted provided that the following conditions 92fe8fb19SBen Gras * are met: 102fe8fb19SBen Gras * 1. Redistributions of source code must retain the above copyright 112fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer. 122fe8fb19SBen Gras * 2. Redistributions in binary form must reproduce the above copyright 132fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer in the 142fe8fb19SBen Gras * documentation and/or other materials provided with the distribution. 152fe8fb19SBen Gras * 3. Neither the name of the University nor the names of its contributors 162fe8fb19SBen Gras * may be used to endorse or promote products derived from this software 172fe8fb19SBen Gras * without specific prior written permission. 182fe8fb19SBen Gras * 192fe8fb19SBen Gras * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 202fe8fb19SBen Gras * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 212fe8fb19SBen Gras * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 222fe8fb19SBen Gras * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 232fe8fb19SBen Gras * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 242fe8fb19SBen Gras * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 252fe8fb19SBen Gras * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 262fe8fb19SBen Gras * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 272fe8fb19SBen Gras * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 282fe8fb19SBen Gras * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 292fe8fb19SBen Gras * SUCH DAMAGE. 302fe8fb19SBen Gras * 312fe8fb19SBen Gras * from: @(#)cerror.s 5.1 (Berkeley) 4/23/90 322fe8fb19SBen Gras */ 332fe8fb19SBen Gras 342fe8fb19SBen Gras#include "SYS.h" 352fe8fb19SBen Gras 36*84d9c625SLionel SambucENTRY_NP(CERROR) 372fe8fb19SBen Gras#ifdef _REENTRANT 38*84d9c625SLionel Sambuc#if defined(__ARM_EABI__) && defined(__UNWIND_TABLES__) 39*84d9c625SLionel Sambuc .fnstart 40*84d9c625SLionel Sambuc .cfi_startproc 41*84d9c625SLionel Sambuc#endif 42*84d9c625SLionel Sambuc push {r4, lr} 43*84d9c625SLionel Sambuc#if defined(__ARM_EABI__) && defined(__UNWIND_TABLES__) 44*84d9c625SLionel Sambuc .save {r4, lr} 45*84d9c625SLionel Sambuc .cfi_def_cfa_offset 8 46*84d9c625SLionel Sambuc .cfi_offset 14, -4 47*84d9c625SLionel Sambuc .cfi_offset 4, -8 48*84d9c625SLionel Sambuc#endif 492fe8fb19SBen Gras mov r4, r0 50*84d9c625SLionel Sambuc bl PLT_SYM(_C_LABEL(__errno)) 512fe8fb19SBen Gras str r4, [r0] 52*84d9c625SLionel Sambuc#ifdef __thumb__ 53*84d9c625SLionel Sambuc movs r0, #0 54*84d9c625SLionel Sambuc mvns r0, r0 552fe8fb19SBen Gras#else 56*84d9c625SLionel Sambuc mvn r0, #0 57*84d9c625SLionel Sambuc#endif 58*84d9c625SLionel Sambuc mov r1, r0 59*84d9c625SLionel Sambuc pop {r4, pc} 60*84d9c625SLionel Sambuc#if defined(__ARM_EABI__) && defined(__UNWIND_TABLES__) 61*84d9c625SLionel Sambuc .cfi_endproc 62*84d9c625SLionel Sambuc .fnend 63*84d9c625SLionel Sambuc#endif 64*84d9c625SLionel Sambuc#else /* !_REENTRANT */ 65*84d9c625SLionel Sambuc#if defined(__ARM_EABI__) && defined(__UNWIND_TABLES__) 66*84d9c625SLionel Sambuc .fnstart 67*84d9c625SLionel Sambuc .cfi_startproc 68*84d9c625SLionel Sambuc#endif 69*84d9c625SLionel Sambuc#ifdef __PIC__ 702fe8fb19SBen Gras /* Setup the GOT */ 712fe8fb19SBen Gras ldr r3, .Lgot 72*84d9c625SLionel Sambuc add r3, r3, pc /* pc = &.LPIC0 */ 732fe8fb19SBen Gras ldr r1, .Lerrno 74*84d9c625SLionel Sambuc.LPIC0: ldr r1, [r3, r1] 752fe8fb19SBen Gras#else 762fe8fb19SBen Gras ldr r1, .Lerrno 77*84d9c625SLionel Sambuc#endif /* __PIC__ */ 782fe8fb19SBen Gras str r0, [r1] 79*84d9c625SLionel Sambuc#ifdef __thumb__ 80*84d9c625SLionel Sambuc movs r0, #0 81*84d9c625SLionel Sambuc mvns r0, r0 82*84d9c625SLionel Sambuc#else 83*84d9c625SLionel Sambuc mvn r0, #0 84*84d9c625SLionel Sambuc#endif /* __thumb__ */ 85*84d9c625SLionel Sambuc mov r1, r0 862fe8fb19SBen Gras RET 87*84d9c625SLionel Sambuc#if defined(__ARM_EABI__) && defined(__UNWIND_TABLES__) 88*84d9c625SLionel Sambuc .cfi_endproc 89*84d9c625SLionel Sambuc .fnend 90*84d9c625SLionel Sambuc#endif 912fe8fb19SBen Gras 92*84d9c625SLionel Sambuc#ifdef __PIC__ 932fe8fb19SBen Gras .align 0 942fe8fb19SBen Gras.Lgot: 95*84d9c625SLionel Sambuc .word _C_LABEL(_GLOBAL_OFFSET_TABLE_) - .LPIC0 96*84d9c625SLionel Sambuc#endif /* __PIC__ */ 972fe8fb19SBen Gras .globl _C_LABEL(errno) 982fe8fb19SBen Gras 992fe8fb19SBen Gras.Lerrno: 1002fe8fb19SBen Gras .word PIC_SYM(_C_LABEL(errno), GOT) 1012fe8fb19SBen Gras#endif /* _REENTRANT */ 102*84d9c625SLionel SambucEND(CERROR) 103