1/* LINTLIBRARY */ 2/*- 3 * Copyright 2001 David E. O'Brien. 4 * All rights reserved. 5 * Copyright (c) 1995, 1998 Berkeley Software Design, Inc. 6 * All rights reserved. 7 * Copyright 1996-1998 John D. Polstra. 8 * All rights reserved. 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 * 3. The name of the authors may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD$"); 35 36#ifndef lint 37#ifndef __GNUC__ 38#error "GCC is needed to compile this file" 39#endif 40#endif /* lint */ 41 42#include <stdlib.h> 43 44#include "libc_private.h" 45#include "crtbrand.c" 46#include "ignore_init.c" 47 48struct Struct_Obj_Entry; 49struct ps_strings; 50 51extern void __sparc_utrap_setup(void); 52 53#ifdef GCRT 54extern void _mcleanup(void); 55extern void monstartup(void *, void *); 56extern int eprol; 57extern int etext; 58#endif 59 60void _start(char **, void (*)(void), struct Struct_Obj_Entry *, 61 struct ps_strings *); 62 63/* The entry function. */ 64/* 65 * %o0 holds ps_strings pointer. 66 * 67 * Note: kernel may (is not set in stone yet) pass ELF aux vector in %o1, 68 * but for now we do not use it here. 69 * 70 * The SPARC compliance definitions specifies that the kernel pass the 71 * address of a function to be executed on exit in %g1. We do not make 72 * use of it as it is quite broken, because gcc can use this register 73 * as a temporary, so it is not safe from C code. Its even more broken 74 * for dynamic executables since rtld runs first. 75 */ 76/* ARGSUSED */ 77void 78_start(char **ap, void (*cleanup)(void), struct Struct_Obj_Entry *obj __unused, 79 struct ps_strings *ps_strings __unused) 80{ 81 int argc; 82 char **argv; 83 char **env; 84 85 argc = *(long *)(void *)ap; 86 argv = ap + 1; 87 env = ap + 2 + argc; 88 handle_argv(argc, argv, env); 89 90 if (&_DYNAMIC != NULL) 91 atexit(cleanup); 92 else { 93 __sparc_utrap_setup(); 94 _init_tls(); 95 } 96#ifdef GCRT 97 atexit(_mcleanup); 98 monstartup(&eprol, &etext); 99#endif 100 101 handle_static_init(argc, argv, env); 102 exit(main(argc, argv, env)); 103} 104 105#ifdef GCRT 106__asm__(".text"); 107__asm__("eprol:"); 108__asm__(".previous"); 109#endif 110