freebsd-dev/lib/csu/sparc64/crt1.c
Pedro F. Giffuni 5e53a4f90f lib: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-26 02:00:33 +00:00

106 lines
3.2 KiB
C

/* LINTLIBRARY */
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright 2001 David E. O'Brien.
* All rights reserved.
* Copyright (c) 1995, 1998 Berkeley Software Design, Inc.
* All rights reserved.
* Copyright 1996-1998 John D. Polstra.
* 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. The name of the authors 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("$FreeBSD$");
#include <stdlib.h>
#include "libc_private.h"
#include "crtbrand.c"
#include "ignore_init.c"
struct Struct_Obj_Entry;
struct ps_strings;
extern void __sparc_utrap_setup(void);
#ifdef GCRT
extern void _mcleanup(void);
extern void monstartup(void *, void *);
extern int eprol;
extern int etext;
#endif
void _start(char **, void (*)(void), struct Struct_Obj_Entry *,
struct ps_strings *);
/* The entry function. */
/*
* %o0 holds ps_strings pointer.
*
* Note: kernel may (is not set in stone yet) pass ELF aux vector in %o1,
* but for now we do not use it here.
*
* The SPARC compliance definitions specifies that the kernel pass the
* address of a function to be executed on exit in %g1. We do not make
* use of it as it is quite broken, because gcc can use this register
* as a temporary, so it is not safe from C code. Its even more broken
* for dynamic executables since rtld runs first.
*/
/* ARGSUSED */
void
_start(char **ap, void (*cleanup)(void), struct Struct_Obj_Entry *obj __unused,
struct ps_strings *ps_strings __unused)
{
int argc;
char **argv;
char **env;
argc = *(long *)(void *)ap;
argv = ap + 1;
env = ap + 2 + argc;
handle_argv(argc, argv, env);
if (&_DYNAMIC != NULL)
atexit(cleanup);
else {
__sparc_utrap_setup();
_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