Differential D25211 Diff 73029 lib/csu/aarch64/crt1_s.S

Changeset View

Standalone View

lib/csu/aarch64/crt1_s.S

This file was copied from lib/csu/i386/crt1_c.c.

	/* LINTLIBRARY */			/* LINTLIBRARY */
	/*-			/*-
	* Copyright 1996-1998 John D. Polstra.			* Copyright 1996-1998 John D. Polstra.
				* Copyright 2014 Andrew Turner.
				* Copyright 2014-2015 The FreeBSD Foundation.
	* All rights reserved.			* All rights reserved.
	*			*
				* Portions of this software were developed by Andrew Turner
				* under sponsorship from the FreeBSD Foundation.
				*
	* Redistribution and use in source and binary forms, with or without			* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions			* modification, are permitted provided that the following conditions
	* are met:			* are met:
	* 1. Redistributions of source code must retain the above copyright			* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.			* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright			* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the			* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.			* documentation and/or other materials provided with the distribution.
	*			*
	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES			* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.			* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,			* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT			* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,			* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY			* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT			* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF			* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.			* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*
	* $FreeBSD$
	*/			*/

	#include <sys/cdefs.h>			#include <machine/asm.h>
	__FBSDID("$FreeBSD$");			__FBSDID("$FreeBSD$");

	#include <stdlib.h>			#include "crtbrand.S"
				#include "ignore_init_note.S"

	#include "libc_private.h"			ENTRY(_start)
	#include "crtbrand.c"			mov x3, x2 /* cleanup */
	#include "ignore_init.c"			add x1, x0, #8 /* load argv */
				ldr x0, [x0] /* load argc */
				add x2, x1, x0, lsl #3 /* env is after argv */
				add x2, x2, #8 /* argv is null terminated */
				b __start
				END(_start)

	typedef void (*fptr)(void);			.section .note.GNU-stack,"",@progbits

	extern void _start(char *, ...);

	#ifdef GCRT
	extern void _mcleanup(void);
	extern void monstartup(void , void );
	extern int eprol;
	extern int etext;
	#endif

	void _start1(fptr, int, char *[]) __dead2;

	/* The entry function, C part. */
	void
	_start1(fptr cleanup, int argc, char *argv[])
	{
	char **env;

	env = argv + argc + 1;
	handle_argv(argc, argv, env);
	if (&_DYNAMIC != NULL) {
	atexit(cleanup);
	} else {
	process_irelocs();
	_init_tls();
	}

	#ifdef GCRT
	atexit(_mcleanup);
	monstartup(&eprol, &etext);
	__asm__("eprol:");
	#endif

	handle_static_init(argc, argv, env);
	exit(main(argc, argv, env));
	}

	__asm(".hidden _start1");