cerror.S revision 1.15
11.15Suwe/* $NetBSD: cerror.S,v 1.15 2025/05/06 20:21:33 uwe Exp $ */ 21.1Sbjh21 31.1Sbjh21/*- 41.1Sbjh21 * Copyright (c) 1990 The Regents of the University of California. 51.1Sbjh21 * All rights reserved. 61.1Sbjh21 * 71.1Sbjh21 * Redistribution and use in source and binary forms, with or without 81.1Sbjh21 * modification, are permitted provided that the following conditions 91.1Sbjh21 * are met: 101.1Sbjh21 * 1. Redistributions of source code must retain the above copyright 111.1Sbjh21 * notice, this list of conditions and the following disclaimer. 121.1Sbjh21 * 2. Redistributions in binary form must reproduce the above copyright 131.1Sbjh21 * notice, this list of conditions and the following disclaimer in the 141.1Sbjh21 * documentation and/or other materials provided with the distribution. 151.5Sagc * 3. Neither the name of the University nor the names of its contributors 161.1Sbjh21 * may be used to endorse or promote products derived from this software 171.1Sbjh21 * without specific prior written permission. 181.1Sbjh21 * 191.1Sbjh21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 201.1Sbjh21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 211.1Sbjh21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 221.1Sbjh21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 231.1Sbjh21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 241.1Sbjh21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 251.1Sbjh21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 261.1Sbjh21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 271.1Sbjh21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 281.1Sbjh21 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 291.1Sbjh21 * SUCH DAMAGE. 301.1Sbjh21 * 311.1Sbjh21 * from: @(#)cerror.s 5.1 (Berkeley) 4/23/90 321.1Sbjh21 */ 331.1Sbjh21 341.1Sbjh21#include "SYS.h" 351.1Sbjh21 361.10SmattENTRY_NP(CERROR) 371.1Sbjh21#ifdef _REENTRANT 381.11Smatt#if defined(__ARM_EABI__) && defined(__UNWIND_TABLES__) 391.10Smatt .fnstart 401.10Smatt .cfi_startproc 411.10Smatt#endif 421.10Smatt push {r4, lr} 431.11Smatt#if defined(__ARM_EABI__) && defined(__UNWIND_TABLES__) 441.10Smatt .save {r4, lr} 451.10Smatt .cfi_def_cfa_offset 8 461.10Smatt .cfi_offset 14, -4 471.10Smatt .cfi_offset 4, -8 481.10Smatt#endif 491.1Sbjh21 mov r4, r0 501.13Sjoerg bl PLT_SYM(_C_LABEL(__errno)) 511.1Sbjh21 str r4, [r0] 521.10Smatt#ifdef __thumb__ 531.10Smatt movs r0, #0 541.10Smatt mvns r0, r0 551.1Sbjh21#else 561.10Smatt mvn r0, #0 571.10Smatt#endif 581.10Smatt mov r1, r0 591.10Smatt pop {r4, pc} 601.11Smatt#if defined(__ARM_EABI__) && defined(__UNWIND_TABLES__) 611.10Smatt .cfi_endproc 621.10Smatt .fnend 631.10Smatt#endif 641.10Smatt#else /* !_REENTRANT */ 651.11Smatt#if defined(__ARM_EABI__) && defined(__UNWIND_TABLES__) 661.10Smatt .fnstart 671.10Smatt .cfi_startproc 681.10Smatt#endif 691.15Suwe#ifdef __PIC__ 701.15Suwe /* Setup the GOT */ 711.15Suwe ldr r3, .Lgot 721.15Suwe add r3, r3, pc /* pc = &.LPIC0 */ 731.15Suwe ldr r1, .Lerrno 741.15Suwe.LPIC0: ldr r1, [r3, r1] 751.15Suwe#else 761.15Suwe ldr r1, .Lerrno 771.15Suwe#endif /* __PIC__ */ 781.1Sbjh21 str r0, [r1] 791.10Smatt#ifdef __thumb__ 801.10Smatt movs r0, #0 811.10Smatt mvns r0, r0 821.10Smatt#else 831.10Smatt mvn r0, #0 841.10Smatt#endif /* __thumb__ */ 851.10Smatt mov r1, r0 861.6Srearnsha RET 871.11Smatt#if defined(__ARM_EABI__) && defined(__UNWIND_TABLES__) 881.10Smatt .cfi_endproc 891.10Smatt .fnend 901.10Smatt#endif 911.1Sbjh21 921.15Suwe#ifdef __PIC__ 931.15Suwe .align 0 941.15Suwe.Lgot: 951.15Suwe .word _C_LABEL(_GLOBAL_OFFSET_TABLE_) - .LPIC0 961.15Suwe#endif /* __PIC__ */ 971.1Sbjh21 .globl _C_LABEL(errno) 981.15Suwe 991.3Sthorpej.Lerrno: 1001.15Suwe .word PIC_SYM(_C_LABEL(errno), GOT) 1011.1Sbjh21#endif /* _REENTRANT */ 1021.10SmattEND(CERROR) 103