SConscript revision 2439
1955SN/A# -*- mode:python -*- 2955SN/A 313576Sciro.santilli@arm.com# Copyright (c) 2006 The Regents of The University of Michigan 413576Sciro.santilli@arm.com# All rights reserved. 513576Sciro.santilli@arm.com# 613576Sciro.santilli@arm.com# Redistribution and use in source and binary forms, with or without 713576Sciro.santilli@arm.com# modification, are permitted provided that the following conditions are 813576Sciro.santilli@arm.com# met: redistributions of source code must retain the above copyright 913576Sciro.santilli@arm.com# notice, this list of conditions and the following disclaimer; 1013576Sciro.santilli@arm.com# redistributions in binary form must reproduce the above copyright 1113576Sciro.santilli@arm.com# notice, this list of conditions and the following disclaimer in the 1213576Sciro.santilli@arm.com# documentation and/or other materials provided with the distribution; 1313576Sciro.santilli@arm.com# neither the name of the copyright holders nor the names of its 141762SN/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 29955SN/Aimport os.path 30955SN/A 31955SN/A# 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 37955SN/A################################################################# 38955SN/A# 392665Ssaidi@eecs.umich.edu# ISA "switch header" generation. 404762Snate@binkert.org# 41955SN/A# Auto-generate arch headers that include the right ISA-specific 4212563Sgabeblack@google.com# header based on the setting of THE_ISA preprocessor variable. 4312563Sgabeblack@google.com# 445522Snate@binkert.org################################################################# 456143Snate@binkert.org 4612371Sgabeblack@google.com# List of headers to generate 474762Snate@binkert.orgisa_switch_hdrs = Split(''' 485522Snate@binkert.org arguments.hh 49955SN/A constants.hh 505522Snate@binkert.org faults.hh 5111974Sgabeblack@google.com isa_traits.hh 52955SN/A process.hh 535522Snate@binkert.org registerfile.hh 544202Sbinkertn@umich.edu stacktrace.hh 555742Snate@binkert.org tlb.hh 56955SN/A types.hh 574381Sbinkertn@umich.edu utility.hh 584381Sbinkertn@umich.edu vtophys.hh 5912246Sgabeblack@google.com ''') 6012246Sgabeblack@google.com 618334Snate@binkert.org# Generate the header. target[0] is the full path of the output 62955SN/A# header to generate. 'source' is a dummy variable, since we get the 63955SN/A# list of ISAs from env['ALL_ISA_LIST']. 644202Sbinkertn@umich.edudef gen_switch_hdr(target, source, env): 65955SN/A fname = str(target[0]) 664382Sbinkertn@umich.edu basename = os.path.basename(fname) 674382Sbinkertn@umich.edu f = open(fname, 'w') 684382Sbinkertn@umich.edu f.write('#include "arch/isa_specific.hh"\n') 696654Snate@binkert.org cond = '#if' 705517Snate@binkert.org for isa in env['ALL_ISA_LIST']: 718614Sgblack@eecs.umich.edu f.write('%s THE_ISA == %s_ISA\n#include "arch/%s/%s"\n' 727674Snate@binkert.org % (cond, isa.upper(), isa, basename)) 736143Snate@binkert.org cond = '#elif' 746143Snate@binkert.org f.write('#else\n#error "THE_ISA not set"\n#endif\n') 756143Snate@binkert.org f.close() 7612302Sgabeblack@google.com return 0 7712302Sgabeblack@google.com 7812302Sgabeblack@google.com# String to print when generating header 7912371Sgabeblack@google.comdef gen_switch_hdr_string(target, source, env): 8012371Sgabeblack@google.com return "Generating ISA switch header " + str(target[0]) 8112371Sgabeblack@google.com 8212371Sgabeblack@google.com# Build SCons Action object. 'varlist' specifies env vars that this 8312371Sgabeblack@google.com# action depends on; when env['ALL_ISA_LIST'] changes these actions 8412371Sgabeblack@google.com# should get re-executed. 8512371Sgabeblack@google.comswitch_hdr_action = Action(gen_switch_hdr, gen_switch_hdr_string, 8612371Sgabeblack@google.com varlist=['ALL_ISA_LIST']) 8712371Sgabeblack@google.com 8812371Sgabeblack@google.com# Instantiate actions for each header 8912371Sgabeblack@google.comfor hdr in isa_switch_hdrs: 9012371Sgabeblack@google.com env.Command(hdr, [], switch_hdr_action) 9112371Sgabeblack@google.com 9212371Sgabeblack@google.com################################################################# 9312371Sgabeblack@google.com# 9412371Sgabeblack@google.com# Include architecture-specific files. 9512371Sgabeblack@google.com# 9612371Sgabeblack@google.com################################################################# 9712371Sgabeblack@google.com 9812371Sgabeblack@google.com# 9912371Sgabeblack@google.com# Build a SCons scanner for ISA files 10012371Sgabeblack@google.com# 10112371Sgabeblack@google.comimport SCons.Scanner 10212371Sgabeblack@google.com 10312371Sgabeblack@google.comdef ISAScan(): 10412371Sgabeblack@google.com return SCons.Scanner.Classic("ISAScan", 10512371Sgabeblack@google.com "$ISASUFFIXES", 10612371Sgabeblack@google.com "SRCDIR", 10712371Sgabeblack@google.com '^[ \t]*##[ \t]*include[ \t]*"([^>"]+)"') 10812371Sgabeblack@google.com 10912371Sgabeblack@google.comdef ISAPath(env, dir, target=None, source=None, a=None): 11012371Sgabeblack@google.com return (Dir(env['SRCDIR']), Dir('.')) 11112371Sgabeblack@google.com 11212371Sgabeblack@google.comiscan = Scanner(function = ISAScan().scan, skeys = [".isa", ".ISA"], 11312371Sgabeblack@google.com path_function = ISAPath) 11412371Sgabeblack@google.comenv.Append(SCANNERS = iscan) 11512371Sgabeblack@google.com 11612371Sgabeblack@google.com# 11712371Sgabeblack@google.com# Now create a Builder object that uses isa_parser.py to generate C++ 11812371Sgabeblack@google.com# output from the ISA description (*.isa) files. 11912371Sgabeblack@google.com# 12012371Sgabeblack@google.com 12112371Sgabeblack@google.com# Convert to File node to fix path 12212371Sgabeblack@google.comisa_parser = File('isa_parser.py') 12312371Sgabeblack@google.comcpu_models_file = File('#m5/cpu/cpu_models.py') 12412371Sgabeblack@google.com 12512371Sgabeblack@google.com# This sucks in the defintions of the CpuModel objects. 12612302Sgabeblack@google.comexecfile(cpu_models_file.srcnode().abspath) 12712371Sgabeblack@google.com 12812302Sgabeblack@google.com# Several files are generated from the ISA description. 12912371Sgabeblack@google.com# We always get the basic decoder and header file. 13012302Sgabeblack@google.comisa_desc_gen_files = Split('decoder.cc decoder.hh') 13112302Sgabeblack@google.com# We also get an execute file for each selected CPU model. 13212371Sgabeblack@google.comisa_desc_gen_files += [CpuModel.dict[cpu].filename 13312371Sgabeblack@google.com for cpu in env['CPU_MODELS']] 13412371Sgabeblack@google.com 13512371Sgabeblack@google.com# The emitter patches up the sources & targets to include the 13612302Sgabeblack@google.com# autogenerated files as targets and isa parser itself as a source. 13712371Sgabeblack@google.comdef isa_desc_emitter(target, source, env): 13812371Sgabeblack@google.com return (isa_desc_gen_files, [isa_parser, cpu_models_file] + source) 13912371Sgabeblack@google.com 14012371Sgabeblack@google.com# Pieces are in place, so create the builder. 14111983Sgabeblack@google.comisa_desc_builder = Builder(action='$SOURCES $TARGET.dir $CPU_MODELS', 1426143Snate@binkert.org source_scanner = iscan, 1438233Snate@binkert.org emitter = isa_desc_emitter) 14412302Sgabeblack@google.com 1456143Snate@binkert.orgenv.Append(BUILDERS = { 'ISADesc' : isa_desc_builder }) 1466143Snate@binkert.org 14712302Sgabeblack@google.com# 1484762Snate@binkert.org# Now include other ISA-specific sources from the ISA subdirectories. 1496143Snate@binkert.org# 1508233Snate@binkert.org 1518233Snate@binkert.orgisa = env['TARGET_ISA'] # someday this may be a list of ISAs 15212302Sgabeblack@google.com 15312302Sgabeblack@google.com# Let the target architecture define what additional sources it needs 1546143Snate@binkert.orgsources += SConscript(os.path.join(isa, 'SConscript'), 15512362Sgabeblack@google.com exports = 'env', duplicate = False) 15612362Sgabeblack@google.com 15712362Sgabeblack@google.comReturn('sources') 15812362Sgabeblack@google.com