SConscript revision 3806
12139SN/A# -*- mode:python -*-
22139SN/A
32139SN/A# Copyright (c) 2006 The Regents of The University of Michigan
42139SN/A# All rights reserved.
52139SN/A#
62139SN/A# Redistribution and use in source and binary forms, with or without
72139SN/A# modification, are permitted provided that the following conditions are
82139SN/A# met: redistributions of source code must retain the above copyright
92139SN/A# notice, this list of conditions and the following disclaimer;
102139SN/A# redistributions in binary form must reproduce the above copyright
112139SN/A# notice, this list of conditions and the following disclaimer in the
122139SN/A# documentation and/or other materials provided with the distribution;
132139SN/A# neither the name of the copyright holders nor the names of its
142139SN/A# contributors may be used to endorse or promote products derived from
152139SN/A# this software without specific prior written permission.
162139SN/A#
172139SN/A# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
182139SN/A# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
192139SN/A# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
202139SN/A# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
212139SN/A# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
222139SN/A# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
232139SN/A# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
242139SN/A# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
252139SN/A# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
262139SN/A# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
272139SN/A# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
282665Ssaidi@eecs.umich.edu#
292665Ssaidi@eecs.umich.edu# Authors: Steve Reinhardt
302139SN/A
312718Sstever@eecs.umich.eduimport os.path, sys
322139SN/A
332139SN/A# Import build environment variable from SConstruct.
342139SN/AImport('env')
352139SN/A
362152SN/A# Right now there are no source files immediately in this directory
372152SN/Asources = []
382152SN/A
392152SN/A#################################################################
402139SN/A#
412139SN/A# ISA "switch header" generation.
422139SN/A#
432139SN/A# Auto-generate arch headers that include the right ISA-specific
442139SN/A# header based on the setting of THE_ISA preprocessor variable.
452152SN/A#
462152SN/A#################################################################
472139SN/A
482139SN/A# List of headers to generate
492139SN/Aisa_switch_hdrs = Split('''
502984Sgblack@eecs.umich.edu	arguments.hh
512439SN/A	faults.hh
523520Sgblack@eecs.umich.edu	interrupts.hh
532139SN/A	isa_traits.hh
543565Sgblack@eecs.umich.edu	kernel_stats.hh
553170Sstever@eecs.umich.edu        locked_mem.hh
563806Ssaidi@eecs.umich.edu        mmaped_ipr.hh
572439SN/A	process.hh
582460SN/A	regfile.hh
593536Sgblack@eecs.umich.edu	remote_gdb.hh
602439SN/A	stacktrace.hh
612972Sgblack@eecs.umich.edu	syscallreturn.hh
622171SN/A	tlb.hh
632439SN/A	types.hh
642439SN/A	utility.hh
652170SN/A	vtophys.hh
662139SN/A        ''')
672139SN/A
683546Sgblack@eecs.umich.edu# Set up this directory to support switching headers
693546Sgblack@eecs.umich.eduenv.make_switching_dir('arch', isa_switch_hdrs, env)
702152SN/A
712152SN/A#################################################################
722152SN/A#
732152SN/A# Include architecture-specific files.
742152SN/A#
752152SN/A#################################################################
762152SN/A
772152SN/A#
782152SN/A# Build a SCons scanner for ISA files
792152SN/A#
802152SN/Aimport SCons.Scanner
812152SN/A
822504SN/Aisa_scanner = SCons.Scanner.Classic("ISAScan",
832504SN/A                                    [".isa", ".ISA"],
842504SN/A                                    "SRCDIR",
852504SN/A                                    r'^\s*##include\s+"([\w/.-]*)"')
862152SN/A
872504SN/Aenv.Append(SCANNERS = isa_scanner)
882152SN/A
892152SN/A#
902152SN/A# Now create a Builder object that uses isa_parser.py to generate C++
912152SN/A# output from the ISA description (*.isa) files.
922152SN/A#
932152SN/A
942152SN/A# Convert to File node to fix path
952152SN/Aisa_parser = File('isa_parser.py')
962632Sstever@eecs.umich.educpu_models_file = File('../cpu/cpu_models.py')
972155SN/A
982155SN/A# This sucks in the defintions of the CpuModel objects.
992155SN/Aexecfile(cpu_models_file.srcnode().abspath)
1002155SN/A
1012155SN/A# Several files are generated from the ISA description.
1022155SN/A# We always get the basic decoder and header file.
1032155SN/Aisa_desc_gen_files = Split('decoder.cc decoder.hh')
1042155SN/A# We also get an execute file for each selected CPU model.
1052155SN/Aisa_desc_gen_files += [CpuModel.dict[cpu].filename
1062155SN/A                       for cpu in env['CPU_MODELS']]
1072152SN/A
1082766Sktlim@umich.edu# Also include the CheckerCPU as one of the models if it is being
1092766Sktlim@umich.edu# enabled via command line.
1102766Sktlim@umich.eduif env['USE_CHECKER']:
1112766Sktlim@umich.edu    isa_desc_gen_files += [CpuModel.dict['CheckerCPU'].filename]
1122766Sktlim@umich.edu
1132152SN/A# The emitter patches up the sources & targets to include the
1142152SN/A# autogenerated files as targets and isa parser itself as a source.
1152152SN/Adef isa_desc_emitter(target, source, env):
1162155SN/A    return (isa_desc_gen_files, [isa_parser, cpu_models_file] + source)
1172152SN/A
1182152SN/A# Pieces are in place, so create the builder.
1192718Sstever@eecs.umich.edupython = sys.executable  # use same Python binary used to run scons
1202921Sktlim@umich.edu
1212921Sktlim@umich.edu# Also include the CheckerCPU as one of the models if it is being
1222921Sktlim@umich.edu# enabled via command line.
1232921Sktlim@umich.eduif env['USE_CHECKER']:
1242921Sktlim@umich.edu    isa_desc_builder = Builder(action=python + ' $SOURCES $TARGET.dir $CPU_MODELS CheckerCPU',
1252921Sktlim@umich.edu                               emitter = isa_desc_emitter)
1262921Sktlim@umich.eduelse:
1272921Sktlim@umich.edu    isa_desc_builder = Builder(action=python + ' $SOURCES $TARGET.dir $CPU_MODELS',
1282921Sktlim@umich.edu                               emitter = isa_desc_emitter)
1292152SN/A
1302152SN/Aenv.Append(BUILDERS = { 'ISADesc' : isa_desc_builder })
1312152SN/A
1322152SN/A#
1332152SN/A# Now include other ISA-specific sources from the ISA subdirectories.
1342152SN/A#
1352152SN/A
1362152SN/Aisa = env['TARGET_ISA'] # someday this may be a list of ISAs
1372152SN/A
1382152SN/A# Let the target architecture define what additional sources it needs
1392667Sstever@eecs.umich.edusources += SConscript(os.path.join(isa, 'SConscript'), exports = 'env')
1402152SN/A
1412152SN/AReturn('sources')
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