1/* $NetBSD: crt0.S,v 1.2 2018/11/26 17:37:45 joerg Exp $ */ 2 3/*- 4 * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Nick Hudson 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include <machine/asm.h> 33 34RCSID("$NetBSD: crt0.S,v 1.2 2018/11/26 17:37:45 joerg Exp $") 35 36 .import _GLOBAL_OFFSET_TABLE_ 37 .hidden ___start 38 39STRONG_ALIAS(__start,_start) 40 41/* 42 * void _start(struct ps_strings *ps_strings, 43 * void (*cleanup)(void), 44 * const Obj_Entry *obj); 45 */ 46_ENTRY(_start) 47 .callinfo frame=0, calls 48 .entry 49 50 bl L$lpc, %r27 51 depi 0, 31, 2, %r27 52L$lpc: addil L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 8), %r27 53 ldo R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 12)(%r1),%r27 54 copy %r27, %r19 55 56 /* 57 * void ___start(void (*cleanup)(void), 58 * struct ps_strings *ps_strings); 59 */ 60 copy %arg0, %arg2 ; ps_strings -> tmp 61 copy %arg1, %arg0 ; cleanup -> arg0 62 b ___start 63 copy %arg2, %arg1 ; ps_strings -> arg1 64 65EXIT(_start) 66