1/* LINTLIBRARY */
2/*-
3 * Copyright 2001 David E. O'Brien.
4 * All rights reserved.
5 * Copyright 1996-1998 John D. Polstra.
6 * All rights reserved.
7 * Copyright (c) 1997 Jason R. Thorpe.
8 * Copyright (c) 1995 Christopher G. Demetriou
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
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.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed for the
22 * FreeBSD Project. See http://www.freebsd.org/ for
23 * information about FreeBSD.
24 * This product includes software developed for the
25 * NetBSD Project. See http://www.netbsd.org/ for
26 * information about NetBSD.
27 * 4. The name of the author may not be used to endorse or promote products
28 * derived from this software without specific prior written permission
29 *
30 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
31 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
33 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
34 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
35 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
39 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 */
41
42#include <sys/cdefs.h>
|
43__FBSDID("$FreeBSD: head/lib/csu/arm/crt1.c 232832 2012-03-11 20:04:09Z kib $");
|
| 43__FBSDID("$FreeBSD: head/lib/csu/arm/crt1.c 245133 2013-01-07 17:58:27Z kib $"); |
44
45#ifndef lint
46#ifndef __GNUC__
47#error "GCC is needed to compile this file"
48#endif
49#endif /* lint */
50
51#include <stdlib.h>
52
53#include "libc_private.h"
54#include "crtbrand.c"
55#include "ignore_init.c"
56
57struct Struct_Obj_Entry;
58struct ps_strings;
59
60extern void _start(int, char **, char **, const struct Struct_Obj_Entry *,
61 void (*)(void), struct ps_strings *);
62
63#ifdef GCRT
64extern void _mcleanup(void);
65extern void monstartup(void *, void *);
66extern int eprol;
67extern int etext;
68#endif
69
70struct ps_strings *__ps_strings;
71
72void __start(int, char **, char **, struct ps_strings *,
73 const struct Struct_Obj_Entry *, void (*)(void));
74
75/* The entry function. */
76__asm(" .text \n"
77" .align 0 \n"
78" .globl _start \n"
79" _start: \n"
80" mov r5, r2 /* cleanup */ \n"
81" mov r4, r1 /* obj_main */ \n"
82" mov r3, r0 /* ps_strings */ \n"
83" /* Get argc, argv, and envp from stack */ \n"
84" ldr r0, [sp, #0x0000] \n"
85" add r1, sp, #0x0004 \n"
86" add r2, r1, r0, lsl #2 \n"
87" add r2, r2, #0x0004 \n"
88" /* Ensure the stack is properly aligned before calling C code. */\n"
89" bic sp, sp, #7 \n"
90" sub sp, sp, #8 \n"
91" str r5, [sp, #4] \n"
92" str r4, [sp, #0] \n"
93"\n"
94" b __start ");
95/* ARGSUSED */
96void
97__start(int argc, char **argv, char **env, struct ps_strings *ps_strings,
98 const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void))
99{
100
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101 environ = env;
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| 101 handle_argv(argc, argv, env); |
102
|
103 if (argc > 0 && argv[0] != NULL)
104 handle_progname(argv[0]);
105
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103 if (ps_strings != (struct ps_strings *)0)
104 __ps_strings = ps_strings;
105
106 if (&_DYNAMIC != NULL)
107 atexit(cleanup);
108 else
109 _init_tls();
110#ifdef GCRT
111 atexit(_mcleanup);
112 monstartup(&eprol, &etext);
113#endif
114 handle_static_init(argc, argv, env);
115 exit(main(argc, argv, env));
116}
117
118#ifdef GCRT
119__asm__(".text");
120__asm__("eprol:");
121__asm__(".previous");
122#endif
|