# -*- mode:python -*-

# Copyright (c) 2006 The Regents of The University of Michigan
# 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;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "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 COPYRIGHT
# OWNER OR CONTRIBUTORS 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.
#
# Authors: Steve Reinhardt

import os.path, sys

# Import build environment variable from SConstruct.
Import('env')

sources = Split('''
	base_kernel_stats.cc
	system_events.cc
	linux/events.cc
	linux/linux_syscalls.cc
	linux/printk.cc
	''')

# Convert file names to SCons File objects.  This takes care of the
# path relative to the top of the directory tree.
sources = [File(s) for s in sources]

#################################################################
#
# ISA "switch header" generation.
#
# Auto-generate arch headers that include the right ISA-specific
# header based on the setting of THE_ISA preprocessor variable.
#
#################################################################

# List of headers to generate
kern_switch_hdrs = Split('''
        kernel_stats.hh
        ''')

env.make_switching_dir('kern', kern_switch_hdrs, env)

isa = env['TARGET_ISA'] # someday this may be a list of ISAs

# Let the target architecture define what additional sources it needs
sources += SConscript(os.path.join(isa, 'SConscript'), exports = 'env')

Return('sources')