11.4Sjoerg/* $NetBSD: crt0.S,v 1.4 2018/11/26 17:37:44 joerg Exp $ */ 21.1Smatt 31.1Smatt/*- 41.1Smatt * Copyright (c) 2012 The NetBSD Foundation, Inc. 51.1Smatt * All rights reserved. 61.1Smatt * 71.1Smatt * This code is derived from software contributed to The NetBSD Foundation 81.1Smatt * by Matt Thomas of 3am Software Foundry. 91.1Smatt * 101.1Smatt * Redistribution and use in source and binary forms, with or without 111.1Smatt * modification, are permitted provided that the following conditions 121.1Smatt * are met: 131.1Smatt * 1. Redistributions of source code must retain the above copyright 141.1Smatt * notice, this list of conditions and the following disclaimer. 151.1Smatt * 2. Redistributions in binary form must reproduce the above copyright 161.1Smatt * notice, this list of conditions and the following disclaimer in the 171.1Smatt * documentation and/or other materials provided with the distribution. 181.1Smatt * 191.1Smatt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 201.1Smatt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 211.1Smatt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 221.1Smatt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 231.1Smatt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 241.1Smatt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 251.1Smatt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 261.1Smatt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 271.1Smatt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 281.1Smatt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 291.1Smatt * POSSIBILITY OF SUCH DAMAGE. 301.1Smatt */ 311.1Smatt 321.1Smatt#include <arm/asm.h> 331.1Smatt 341.4SjoergRCSID("$NetBSD: crt0.S,v 1.4 2018/11/26 17:37:44 joerg Exp $") 351.1Smatt 361.1SmattSTRONG_ALIAS(_start,__start) 371.1Smatt 381.1Smatt_ENTRY(__start) 391.1Smatt /* 401.4Sjoerg * ps_strings is passed in r0 and cleanup in r2. 411.4Sjoerg * It should be ps_string in r1 and cleanup in r0. 421.1Smatt */ 431.4Sjoerg mov r1, r0 441.4Sjoerg mov r0, r2 451.1Smatt 461.1Smatt /* Ensure the stack is properly aligned before calling C code. */ 471.3Smatt#if !defined(__thumb__) 481.1Smatt bic sp, sp, #7 491.2Smatt#else 501.2Smatt movs r6, #7 511.2Smatt mov r7, sp 521.2Smatt bics r7, r7, r6 531.2Smatt mov sp, r7 541.2Smatt#endif 551.1Smatt 561.1Smatt /* 571.1Smatt * void ___start(void (*cleanup)(void), 581.1Smatt * struct ps_strings *ps_strings); 591.1Smatt */ 601.1Smatt 611.1Smatt b ___start 62