SConscript revision 2171
1955SN/A# -*- mode:python -*- 2955SN/A 35871Snate@binkert.org# Copyright (c) 2006 The Regents of The University of Michigan 41762SN/A# All rights reserved. 5955SN/A# 6955SN/A# Redistribution and use in source and binary forms, with or without 7955SN/A# modification, are permitted provided that the following conditions are 8955SN/A# met: redistributions of source code must retain the above copyright 9955SN/A# notice, this list of conditions and the following disclaimer; 10955SN/A# redistributions in binary form must reproduce the above copyright 11955SN/A# notice, this list of conditions and the following disclaimer in the 12955SN/A# documentation and/or other materials provided with the distribution; 13955SN/A# neither the name of the copyright holders nor the names of its 14955SN/A# contributors may be used to endorse or promote products derived from 15955SN/A# this software without specific prior written permission. 16955SN/A# 17955SN/A# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18955SN/A# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19955SN/A# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20955SN/A# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21955SN/A# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22955SN/A# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23955SN/A# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24955SN/A# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25955SN/A# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26955SN/A# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27955SN/A# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28955SN/A 292665Ssaidi@eecs.umich.eduimport os.path 302665Ssaidi@eecs.umich.edu 315863Snate@binkert.org# Import build environment variable from SConstruct. 32955SN/AImport('env') 33955SN/A 34955SN/A# Right now there are no source files immediately in this directory 35955SN/Asources = [] 36955SN/A 372632Sstever@eecs.umich.edu################################################################# 382632Sstever@eecs.umich.edu# 392632Sstever@eecs.umich.edu# ISA "switch header" generation. 402632Sstever@eecs.umich.edu# 41955SN/A# Auto-generate arch headers that include the right ISA-specific 422632Sstever@eecs.umich.edu# header based on the setting of THE_ISA preprocessor variable. 432632Sstever@eecs.umich.edu# 442761Sstever@eecs.umich.edu################################################################# 452632Sstever@eecs.umich.edu 462632Sstever@eecs.umich.edu# List of headers to generate 472632Sstever@eecs.umich.eduisa_switch_hdrs = Split(''' 482761Sstever@eecs.umich.edu isa_traits.hh 492761Sstever@eecs.umich.edu linux_process.hh 502761Sstever@eecs.umich.edu tru64_process.hh 512632Sstever@eecs.umich.edu tlb.hh 522632Sstever@eecs.umich.edu aout_machdep.h 532761Sstever@eecs.umich.edu ecoff_machdep.h 542761Sstever@eecs.umich.edu arguments.hh 552761Sstever@eecs.umich.edu stacktrace.hh 562761Sstever@eecs.umich.edu vtophys.hh 572761Sstever@eecs.umich.edu faults.hh 582632Sstever@eecs.umich.edu ev5.hh 592632Sstever@eecs.umich.edu ''') 602632Sstever@eecs.umich.edu 612632Sstever@eecs.umich.edu# Generate the header. target[0] is the full path of the output 622632Sstever@eecs.umich.edu# header to generate. 'source' is a dummy variable, since we get the 632632Sstever@eecs.umich.edu# list of ISAs from env['ALL_ISA_LIST']. 642632Sstever@eecs.umich.edudef gen_switch_hdr(target, source, env): 65955SN/A fname = str(target[0]) 66955SN/A basename = os.path.basename(fname) 67955SN/A f = open(fname, 'w') 685863Snate@binkert.org f.write('#include "arch/isa_specific.hh"\n') 695863Snate@binkert.org cond = '#if' 705863Snate@binkert.org for isa in env['ALL_ISA_LIST']: 715863Snate@binkert.org f.write('%s THE_ISA == %s_ISA\n#include "arch/%s/%s"\n' 725863Snate@binkert.org % (cond, isa.upper(), isa, basename)) 735863Snate@binkert.org cond = '#elif' 745863Snate@binkert.org f.write('#else\n#error "THE_ISA not set"\n#endif\n') 755863Snate@binkert.org f.close() 765863Snate@binkert.org return 0 775863Snate@binkert.org 785863Snate@binkert.org# String to print when generating header 795863Snate@binkert.orgdef gen_switch_hdr_string(target, source, env): 805863Snate@binkert.org return "Generating ISA switch header " + str(target[0]) 815863Snate@binkert.org 825863Snate@binkert.org# Build SCons Action object. 'varlist' specifies env vars that this 835863Snate@binkert.org# action depdnds on; when env['ALL_ISA_LIST'] changes these actions 845863Snate@binkert.org# should get re-executed. 855863Snate@binkert.orgswitch_hdr_action = Action(gen_switch_hdr, gen_switch_hdr_string, 865863Snate@binkert.org varlist=['ALL_ISA_LIST']) 875863Snate@binkert.org 885863Snate@binkert.org# Instantiate actions for each header 895863Snate@binkert.orgfor hdr in isa_switch_hdrs: 905863Snate@binkert.org env.Command(hdr, [], switch_hdr_action) 915863Snate@binkert.org 925863Snate@binkert.org################################################################# 935863Snate@binkert.org# 945863Snate@binkert.org# Include architecture-specific files. 955863Snate@binkert.org# 965863Snate@binkert.org################################################################# 975863Snate@binkert.org 985863Snate@binkert.org# 99955SN/A# Build a SCons scanner for ISA files 1005396Ssaidi@eecs.umich.edu# 1015863Snate@binkert.orgimport SCons.Scanner 1025863Snate@binkert.org 1034202Sbinkertn@umich.edudef ISAScan(): 1045863Snate@binkert.org return SCons.Scanner.Classic("ISAScan", 1055863Snate@binkert.org "$ISASUFFIXES", 1065863Snate@binkert.org "SRCDIR", 1075863Snate@binkert.org '^[ \t]*##[ \t]*include[ \t]*"([^>"]+)"') 108955SN/A 1095273Sstever@gmail.comdef ISAPath(env, dir, target=None, source=None, a=None): 1105871Snate@binkert.org return (Dir(env['SRCDIR']), Dir('.')) 1115273Sstever@gmail.com 1125871Snate@binkert.orgiscan = Scanner(function = ISAScan().scan, skeys = [".isa", ".ISA"], 1135863Snate@binkert.org path_function = ISAPath) 1145863Snate@binkert.orgenv.Append(SCANNERS = iscan) 1155863Snate@binkert.org 1165871Snate@binkert.org# 1175872Snate@binkert.org# Now create a Builder object that uses isa_parser.py to generate C++ 1185872Snate@binkert.org# output from the ISA description (*.isa) files. 1195872Snate@binkert.org# 1205871Snate@binkert.org 1215871Snate@binkert.org# Convert to File node to fix path 1225871Snate@binkert.orgisa_parser = File('isa_parser.py') 1235871Snate@binkert.orgcpu_models_file = File('#m5/cpu/cpu_models.py') 1245871Snate@binkert.org 1255871Snate@binkert.org# This sucks in the defintions of the CpuModel objects. 1265871Snate@binkert.orgexecfile(cpu_models_file.srcnode().abspath) 1275871Snate@binkert.org 1285871Snate@binkert.org# Several files are generated from the ISA description. 1295871Snate@binkert.org# We always get the basic decoder and header file. 1305871Snate@binkert.orgisa_desc_gen_files = Split('decoder.cc decoder.hh') 1315871Snate@binkert.org# We also get an execute file for each selected CPU model. 1325871Snate@binkert.orgisa_desc_gen_files += [CpuModel.dict[cpu].filename 1335871Snate@binkert.org for cpu in env['CPU_MODELS']] 1345863Snate@binkert.org 1355227Ssaidi@eecs.umich.edu# The emitter patches up the sources & targets to include the 1365396Ssaidi@eecs.umich.edu# autogenerated files as targets and isa parser itself as a source. 1375396Ssaidi@eecs.umich.edudef isa_desc_emitter(target, source, env): 1385396Ssaidi@eecs.umich.edu return (isa_desc_gen_files, [isa_parser, cpu_models_file] + source) 1395396Ssaidi@eecs.umich.edu 1405396Ssaidi@eecs.umich.edu# Pieces are in place, so create the builder. 1415396Ssaidi@eecs.umich.eduisa_desc_builder = Builder(action='$SOURCES $TARGET.dir $CPU_MODELS', 1425396Ssaidi@eecs.umich.edu source_scanner = iscan, 1435396Ssaidi@eecs.umich.edu emitter = isa_desc_emitter) 1445588Ssaidi@eecs.umich.edu 1455396Ssaidi@eecs.umich.eduenv.Append(BUILDERS = { 'ISADesc' : isa_desc_builder }) 1465396Ssaidi@eecs.umich.edu 1475396Ssaidi@eecs.umich.edu# 1485396Ssaidi@eecs.umich.edu# Now include other ISA-specific sources from the ISA subdirectories. 1495396Ssaidi@eecs.umich.edu# 1505396Ssaidi@eecs.umich.edu 1515396Ssaidi@eecs.umich.eduisa = env['TARGET_ISA'] # someday this may be a list of ISAs 1525396Ssaidi@eecs.umich.edu 1535396Ssaidi@eecs.umich.edu# Let the target architecture define what additional sources it needs 1545396Ssaidi@eecs.umich.edusources += SConscript(os.path.join(isa, 'SConscript'), 1555396Ssaidi@eecs.umich.edu exports = 'env', duplicate = False) 1565396Ssaidi@eecs.umich.edu 1575396Ssaidi@eecs.umich.eduReturn('sources') 1585396Ssaidi@eecs.umich.edu