1*84d9c625SLionel Sambuc/* $NetBSD: crt0.S,v 1.1 2013/07/13 18:52:35 skrll Exp $ */ 2*84d9c625SLionel Sambuc 3*84d9c625SLionel Sambuc/*- 4*84d9c625SLionel Sambuc * Copyright (c) 2013 The NetBSD Foundation, Inc. 5*84d9c625SLionel Sambuc * All rights reserved. 6*84d9c625SLionel Sambuc * 7*84d9c625SLionel Sambuc * This code is derived from software contributed to The NetBSD Foundation 8*84d9c625SLionel Sambuc * by Nick Hudson 9*84d9c625SLionel Sambuc * 10*84d9c625SLionel Sambuc * Redistribution and use in source and binary forms, with or without 11*84d9c625SLionel Sambuc * modification, are permitted provided that the following conditions 12*84d9c625SLionel Sambuc * are met: 13*84d9c625SLionel Sambuc * 1. Redistributions of source code must retain the above copyright 14*84d9c625SLionel Sambuc * notice, this list of conditions and the following disclaimer. 15*84d9c625SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright 16*84d9c625SLionel Sambuc * notice, this list of conditions and the following disclaimer in the 17*84d9c625SLionel Sambuc * documentation and/or other materials provided with the distribution. 18*84d9c625SLionel Sambuc * 19*84d9c625SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20*84d9c625SLionel Sambuc * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21*84d9c625SLionel Sambuc * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22*84d9c625SLionel Sambuc * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23*84d9c625SLionel Sambuc * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24*84d9c625SLionel Sambuc * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25*84d9c625SLionel Sambuc * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26*84d9c625SLionel Sambuc * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27*84d9c625SLionel Sambuc * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28*84d9c625SLionel Sambuc * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29*84d9c625SLionel Sambuc * POSSIBILITY OF SUCH DAMAGE. 30*84d9c625SLionel Sambuc */ 31*84d9c625SLionel Sambuc 32*84d9c625SLionel Sambuc#include <machine/asm.h> 33*84d9c625SLionel Sambuc 34*84d9c625SLionel SambucRCSID("$NetBSD: crt0.S,v 1.1 2013/07/13 18:52:35 skrll Exp $") 35*84d9c625SLionel Sambuc 36*84d9c625SLionel Sambuc .import _GLOBAL_OFFSET_TABLE_ 37*84d9c625SLionel Sambuc .hidden ___start 38*84d9c625SLionel Sambuc 39*84d9c625SLionel SambucSTRONG_ALIAS(__start,_start) 40*84d9c625SLionel Sambuc 41*84d9c625SLionel Sambuc/* 42*84d9c625SLionel Sambuc * void _start(struct ps_strings *ps_strings, 43*84d9c625SLionel Sambuc * void (*cleanup)(void), 44*84d9c625SLionel Sambuc * const Obj_Entry *obj); 45*84d9c625SLionel Sambuc */ 46*84d9c625SLionel Sambuc_ENTRY(_start) 47*84d9c625SLionel Sambuc .callinfo frame=0, calls 48*84d9c625SLionel Sambuc .entry 49*84d9c625SLionel Sambuc 50*84d9c625SLionel Sambuc bl L$lpc, %r27 51*84d9c625SLionel Sambuc depi 0, 31, 2, %r27 52*84d9c625SLionel SambucL$lpc: addil L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 8), %r27 53*84d9c625SLionel Sambuc ldo R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 12)(%r1),%r27 54*84d9c625SLionel Sambuc copy %r27, %r19 55*84d9c625SLionel Sambuc 56*84d9c625SLionel Sambuc /* 57*84d9c625SLionel Sambuc * void ___start(void (*cleanup)(void), 58*84d9c625SLionel Sambuc * const Obj_Entry *obj, 59*84d9c625SLionel Sambuc * struct ps_strings *ps_strings); 60*84d9c625SLionel Sambuc */ 61*84d9c625SLionel Sambuc copy %arg0, %arg3 ; ps_strings -> tmp 62*84d9c625SLionel Sambuc copy %arg1, %arg0 ; cleanup -> arg0 63*84d9c625SLionel Sambuc copy %arg2, %arg1 ; obj -> arg1 64*84d9c625SLionel Sambuc b ___start 65*84d9c625SLionel Sambuc copy %arg3, %arg2 ; ps_strings (tmp) -> arg2 66*84d9c625SLionel Sambuc 67*84d9c625SLionel SambucEXIT(_start) 68