3 * Copyright 2001 David E. O'Brien.
5 * Copyright (c) 1995, 1998 Berkeley Software Design, Inc.
7 * Copyright 1996-1998 John D. Polstra.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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
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.
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
38 #include "libc_private.h"
40 #include "ignore_init.c"
42 struct Struct_Obj_Entry;
45 extern void __sparc_utrap_setup(void);
48 extern void _mcleanup(void);
49 extern void monstartup(void *, void *);
54 void _start(char **, void (*)(void), struct Struct_Obj_Entry *,
57 /* The entry function. */
59 * %o0 holds ps_strings pointer.
61 * Note: kernel may (is not set in stone yet) pass ELF aux vector in %o1,
62 * but for now we do not use it here.
64 * The SPARC compliance definitions specifies that the kernel pass the
65 * address of a function to be executed on exit in %g1. We do not make
66 * use of it as it is quite broken, because gcc can use this register
67 * as a temporary, so it is not safe from C code. Its even more broken
68 * for dynamic executables since rtld runs first.
72 _start(char **ap, void (*cleanup)(void), struct Struct_Obj_Entry *obj __unused,
73 struct ps_strings *ps_strings __unused)
79 argc = *(long *)(void *)ap;
82 handle_argv(argc, argv, env);
84 if (&_DYNAMIC != NULL)
87 __sparc_utrap_setup();
92 monstartup(&eprol, &etext);
95 handle_static_init(argc, argv, env);
96 exit(main(argc, argv, env));
102 __asm__(".previous");