freebsd-dev/lib/csu/powerpc64/crt1.c
Konstantin Belousov a22748dbd9 Stop calling _init/_fini methods from crt1 for dynamic binaries. Do
call preinit, init and fini arrays methods from crt1 for static binaries.

Mark new crt1 with FreeBSD-specific ELF note.

Move some common crt1 code into new MI file ignore_init.c, to reduce
duplication.  Also, conservatively adjust nearby sources for style.

Reviewed by:	kan
Tested by:	andrew (arm), flo (sparc64)
MFC after:	3 weeks
2012-03-11 20:04:09 +00:00

111 lines
3.3 KiB
C

/* LINTLIBRARY */
/*-
* Copyright 2001 David E. O'Brien.
* All rights reserved.
* Copyright 1996-1998 John D. Polstra.
* All rights reserved.
* Copyright (c) 1997 Jason R. Thorpe.
* Copyright (c) 1995 Christopher G. Demetriou
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the
* FreeBSD Project. See http://www.freebsd.org/ for
* information about FreeBSD.
* This product includes software developed for the
* NetBSD Project. See http://www.netbsd.org/ for
* information about NetBSD.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifndef lint
#ifndef __GNUC__
#error "GCC is needed to compile this file"
#endif
#endif /* lint */
#include <stdlib.h>
#include "libc_private.h"
#include "crtbrand.c"
#include "ignore_init.c"
struct Struct_Obj_Entry;
struct ps_strings;
extern void _start(int, char **, char **, const struct Struct_Obj_Entry *,
void (*)(void), struct ps_strings *);
#ifdef GCRT
extern void _mcleanup(void);
extern void monstartup(void *, void *);
extern int eprol;
extern int etext;
#endif
struct ps_strings *__ps_strings;
/* The entry function. */
/*
* First 5 arguments are specified by the PowerPC SVR4 ABI.
* The last argument, ps_strings, is a BSD extension.
*/
/* ARGSUSED */
void
_start(int argc, char **argv, char **env,
const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void),
struct ps_strings *ps_strings)
{
environ = env;
if (argc > 0 && argv[0] != NULL)
handle_progname(argv[0]);
if (ps_strings != (struct ps_strings *)0)
__ps_strings = ps_strings;
if (&_DYNAMIC != NULL)
atexit(cleanup);
else
_init_tls();
#ifdef GCRT
atexit(_mcleanup);
monstartup(&eprol, &etext);
#endif
handle_static_init(argc, argv, env);
exit(main(argc, argv, env));
}
#ifdef GCRT
__asm__(".text");
__asm__("eprol:");
__asm__(".previous");
#endif