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.
35 #error "GCC is needed to compile this file"
41 #include "libc_private.h"
44 struct Struct_Obj_Entry;
50 extern void _fini(void);
51 extern void _init(void);
52 extern int main(int, char **, char **);
53 extern void _start(char **, void (*)(void), struct Struct_Obj_Entry *,
55 extern void __sparc_utrap_setup(void);
58 extern void _mcleanup(void);
59 extern void monstartup(void *, void *);
65 const char *__progname = "";
67 /* The entry function. */
69 * %o0 holds ps_strings pointer.
71 * Note: kernel may (is not set in stone yet) pass ELF aux vector in %o1,
72 * but for now we do not use it here.
74 * The SPARC compliance definitions specifies that the kernel pass the
75 * address of a function to be executed on exit in %g1. We do not make
76 * use of it as it is quite broken, because gcc can use this register
77 * as a temporary, so it is not safe from C code. Its even more broken
78 * for dynamic executables since rtld runs first.
82 _start(char **ap, void (*cleanup)(void), struct Struct_Obj_Entry *obj __unused,
83 struct ps_strings *ps_strings __unused)
90 argc = *(long *)(void *)ap;
94 if (argc > 0 && argv[0] != NULL) {
96 for (s = __progname; *s != '\0'; s++)
101 if (&_DYNAMIC != NULL)
104 __sparc_utrap_setup();
112 monstartup(&eprol, &etext);
115 exit( main(argc, argv, env) );
121 __asm__(".previous");
124 __asm__(".ident\t\"$FreeBSD$\"");