xref: /freebsd/lib/csu/i386/crt1_c.c (revision ae41709ab46305df80f7f35bb478a3c8ebf22ebb)
1 /* LINTLIBRARY */
2 /*-
3  * Copyright 1996-1998 John D. Polstra.
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 
32 #include <stdlib.h>
33 
34 #include "libc_private.h"
35 #include "ignore_init.c"
36 
37 typedef void (*fptr)(void);
38 
39 extern void _start(char *, ...);
40 
41 #ifdef GCRT
42 extern void _mcleanup(void);
43 extern void monstartup(void *, void *);
44 extern int eprol;
45 extern int etext;
46 #endif
47 
48 void _start1(fptr, int, char *[]) __dead2;
49 
50 /* The entry function, C part. */
51 void
52 _start1(fptr cleanup, int argc, char *argv[])
53 {
54 	char **env;
55 
56 	env = argv + argc + 1;
57 	handle_argv(argc, argv, env);
58 	if (&_DYNAMIC != NULL) {
59 		atexit(cleanup);
60 	} else {
61 		process_irelocs();
62 		_init_tls();
63 	}
64 
65 #ifdef GCRT
66 	atexit(_mcleanup);
67 	monstartup(&eprol, &etext);
68 __asm__("eprol:");
69 #endif
70 
71 	handle_static_init(argc, argv, env);
72 	exit(main(argc, argv, env));
73 }
74 
75 __asm(".hidden	_start1");
76