#
# Copyright (c) 2010 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 <abi/asmtool.h>
#include <arch/stack.h>
.text
FUNCTION_BEGIN(frame_pointer_get)
# Add the stack bias to %sp to get the actual address.
retl
add %sp, STACK_BIAS, %o0
FUNCTION_END(frame_pointer_get)
FUNCTION_BEGIN(program_counter_get)
retl
mov %o7, %o0
FUNCTION_END(program_counter_get)
FUNCTION_BEGIN(alloc_window_and_flush)
save %sp, -(STACK_WINDOW_SAVE_AREA_SIZE+STACK_ARG_SAVE_AREA_SIZE), %sp
# Flush all other windows to memory so that we can read their contents.
flushw
ret
restore
FUNCTION_END(alloc_window_and_flush)