Subversion Repositories HelenOS

#

# Copyright (C) 2005 Jakub Jermar

# All rights reserved.

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions

# are met:

#

# - Redistributions of source code must retain the above copyright

#   notice, this list of conditions and the following disclaimer.

# - 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.

# - 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 <arch/ski/ski.h>

.section K_TEXT_START

.global k_text_start

k_text_start:

.global kernel_image_start

stack0:

kernel_image_start:

	# initialize register stack

	alloc r1 = ar.pfs, 0, 0, 0, 0	;;

	# initialize memory stack to some sane value

	movl r12=stack0

	# initialize gp (Global Pointer) register

	movl r1=k_text_start

	#

	# Initialize hardcoded_* variables.

	# (IA-64 port doesn't get these values from linker.)

	#

	movl r8 = k_text_start	;;

	movl r9 = k_text_end	;;

	sub r8 = r9, r8		;;

	addl r10 = @gprel(hardcoded_ktext_size), gp;;

	st4 [r10] = r8		;;

	movl r8 = k_data_start	;;

	movl r9 = k_data_end	;;

	sub r8 = r9, r8		;;

	addl r10 = @gprel(hardcoded_kdata_size), gp;;

	st4 [r10] = r8		;;

	addl r10 = @gprel(hardcoded_load_address), gp;;

	st8 [r10] = r1

	# initialize Ski console using SSC (Simulator System Call)

	mov r15=SKI_CONSOLE_INIT

	break 0x80000

	br.call.sptk.many b0=main_bsp

0:

	br 0b

.section K_TEXT_END

.global k_text_end

k_text_end:

.section K_DATA_START

.global k_data_start

k_data_start:

.section K_DATA_END

.global k_data_end

k_data_end: