3 * Copyright 1996-1998 John D. Polstra.
4 * Copyright 2014 Andrew Turner.
5 * Copyright 2014-2015 The FreeBSD Foundation.
8 * Portions of this software were developed by Andrew Turner
9 * under sponsorship from the FreeBSD Foundation.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
37 #error "GCC is needed to compile this file"
43 #include "libc_private.h"
45 #include "ignore_init.c"
48 extern void _mcleanup(void);
49 extern void monstartup(void *, void *);
54 void __start(int, char **, char **, void (*)(void));
56 /* The entry function. */
61 /* TODO: Remove this when the kernel correctly aligns the stack */
62 " cbnz x0, 1f \n" /* Are we using a new kernel? */
63 " mov x0, sp \n" /* No, load the args from sp */
64 " and sp, x0, #~0xf \n" /* And align the stack */
65 "1: mov x3, x2 \n" /* cleanup */
66 " add x1, x0, #8 \n" /* load argv */
67 " ldr x0, [x0] \n" /* load argc */
68 " add x2, x1, x0, lsl #3 \n" /* env is after argv */
69 " add x2, x2, #8 \n" /* argv is null terminated */
73 /* The entry function. */
75 __start(int argc, char *argv[], char *env[], void (*cleanup)(void))
78 handle_argv(argc, argv, env);
80 if (&_DYNAMIC != NULL)
87 monstartup(&eprol, &etext);
91 handle_static_init(argc, argv, env);
92 exit(main(argc, argv, env));