crt1.c revision 330897 
1/* LINTLIBRARY */
2/*-
3 * SPDX-License-Identifier: BSD-4-Clause
4 *
5 * Copyright 2001 David E. O'Brien.
6 * All rights reserved.
7 * Copyright 1996-1998 John D. Polstra.
8 * All rights reserved.
9 * Copyright (c) 1997 Jason R. Thorpe.
10 * Copyright (c) 1995 Christopher G. Demetriou
11 * All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 *    notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 *    notice, this list of conditions and the following disclaimer in the
20 *    documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 *    must display the following acknowledgement:
23 *          This product includes software developed for the
24 *          FreeBSD Project.  See http://www.freebsd.org/ for
25 *          information about FreeBSD.
26 *          This product includes software developed for the
27 *          NetBSD Project.  See http://www.netbsd.org/ for
28 *          information about NetBSD.
29 * 4. The name of the author may not be used to endorse or promote products
30 *    derived from this software without specific prior written permission
31 *
32 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
33 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
34 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
35 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
36 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
37 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
38 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
39 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
40 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
41 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 */
43
44#include <sys/cdefs.h>
45__FBSDID("$FreeBSD: stable/11/lib/csu/powerpc/crt1.c 330897 2018-03-14 03:19:51Z eadler $");
46
47#include <stdlib.h>
48
49#include "libc_private.h"
50#include "crtbrand.c"
51#include "ignore_init.c"
52
53struct Struct_Obj_Entry;
54struct ps_strings;
55
56#ifdef GCRT
57extern void _mcleanup(void);
58extern void monstartup(void *, void *);
59extern int eprol;
60extern int etext;
61#endif
62
63struct ps_strings *__ps_strings;
64
65void _start(int, char **, char **, const struct Struct_Obj_Entry *,
66    void (*)(void), struct ps_strings *);
67
68/* The entry function. */
69/*
70 * First 5 arguments are specified by the PowerPC SVR4 ABI.
71 * The last argument, ps_strings, is a BSD extension.
72 */
73/* ARGSUSED */
74void
75_start(int argc, char **argv, char **env,
76    const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void),
77    struct ps_strings *ps_strings)
78{
79
80
81	handle_argv(argc, argv, env);
82
83	if (ps_strings != (struct ps_strings *)0)
84		__ps_strings = ps_strings;
85
86	if (&_DYNAMIC != NULL)
87		atexit(cleanup);
88	else
89		_init_tls();
90
91#ifdef GCRT
92	atexit(_mcleanup);
93	monstartup(&eprol, &etext);
94#endif
95
96	handle_static_init(argc, argv, env);
97	exit(main(argc, argv, env));
98}
99
100#ifdef GCRT
101__asm__(".text");
102__asm__("eprol:");
103__asm__(".previous");
104#endif
105