SConscript revision 9020
112837Sgabeblack@google.com# -*- mode:python -*- 212837Sgabeblack@google.com 312837Sgabeblack@google.com# Copyright (c) 2006 The Regents of The University of Michigan 412837Sgabeblack@google.com# All rights reserved. 512837Sgabeblack@google.com# 612837Sgabeblack@google.com# Redistribution and use in source and binary forms, with or without 712837Sgabeblack@google.com# modification, are permitted provided that the following conditions are 812837Sgabeblack@google.com# met: redistributions of source code must retain the above copyright 912837Sgabeblack@google.com# notice, this list of conditions and the following disclaimer; 1012837Sgabeblack@google.com# redistributions in binary form must reproduce the above copyright 1112837Sgabeblack@google.com# notice, this list of conditions and the following disclaimer in the 1212837Sgabeblack@google.com# documentation and/or other materials provided with the distribution; 1312837Sgabeblack@google.com# neither the name of the copyright holders nor the names of its 1412837Sgabeblack@google.com# contributors may be used to endorse or promote products derived from 1512837Sgabeblack@google.com# this software without specific prior written permission. 1612837Sgabeblack@google.com# 1712837Sgabeblack@google.com# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1812837Sgabeblack@google.com# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1912837Sgabeblack@google.com# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2012837Sgabeblack@google.com# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2112837Sgabeblack@google.com# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2212837Sgabeblack@google.com# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2312837Sgabeblack@google.com# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2412837Sgabeblack@google.com# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2512837Sgabeblack@google.com# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2612837Sgabeblack@google.com# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2712837Sgabeblack@google.com# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2812837Sgabeblack@google.com# 2912837Sgabeblack@google.com# Authors: Steve Reinhardt 3012837Sgabeblack@google.com 3112837Sgabeblack@google.comimport sys 3212837Sgabeblack@google.comimport os 3312954Sgabeblack@google.com 3412955Sgabeblack@google.comImport('*') 3512837Sgabeblack@google.com 3612863Sgabeblack@google.com################################################################# 3712950Sgabeblack@google.com# 3812952Sgabeblack@google.com# ISA "switch header" generation. 3912953Sgabeblack@google.com# 4013038Sgabeblack@google.com# Auto-generate arch headers that include the right ISA-specific 4112953Sgabeblack@google.com# header based on the setting of THE_ISA preprocessor variable. 4212837Sgabeblack@google.com# 4312837Sgabeblack@google.com################################################################# 4412837Sgabeblack@google.com 4512837Sgabeblack@google.com# List of headers to generate 4612837Sgabeblack@google.comisa_switch_hdrs = Split(''' 4712943Sgabeblack@google.com decoder.hh 4812837Sgabeblack@google.com interrupts.hh 4912837Sgabeblack@google.com isa.hh 5012837Sgabeblack@google.com isa_traits.hh 5112837Sgabeblack@google.com kernel_stats.hh 5212837Sgabeblack@google.com locked_mem.hh 5312838Sgabeblack@google.com microcode_rom.hh 5412837Sgabeblack@google.com mmapped_ipr.hh 5512837Sgabeblack@google.com mt.hh 5612940Sgabeblack@google.com process.hh 5712839Sgabeblack@google.com predecoder.hh 5812837Sgabeblack@google.com registers.hh 59 remote_gdb.hh 60 stacktrace.hh 61 tlb.hh 62 types.hh 63 utility.hh 64 vtophys.hh 65 ''') 66 67# Set up this directory to support switching headers 68make_switching_dir('arch', isa_switch_hdrs, env) 69 70################################################################# 71# 72# Include architecture-specific files. 73# 74################################################################# 75 76# 77# Build a SCons scanner for ISA files 78# 79import SCons.Scanner 80 81isa_scanner = SCons.Scanner.Classic("ISAScan", 82 [".isa", ".ISA"], 83 "SRCDIR", 84 r'^\s*##include\s+"([\w/.-]*)"') 85 86env.Append(SCANNERS = isa_scanner) 87 88# 89# Now create a Builder object that uses isa_parser.py to generate C++ 90# output from the ISA description (*.isa) files. 91# 92 93isa_parser = File('isa_parser.py') 94 95# The emitter patches up the sources & targets to include the 96# autogenerated files as targets and isa parser itself as a source. 97def isa_desc_emitter(target, source, env): 98 cpu_models = list(env['CPU_MODELS']) 99 cpu_models.append('CheckerCPU') 100 101 # Several files are generated from the ISA description. 102 # We always get the basic decoder and header file. 103 target = [ 'decoder.cc', 'decoder.hh', 'max_inst_regs.hh' ] 104 # We also get an execute file for each selected CPU model. 105 target += [CpuModel.dict[cpu].filename for cpu in cpu_models] 106 107 # List the isa parser as a source. 108 source += [ isa_parser ] 109 # Add in the CPU models. 110 source += [ Value(m) for m in cpu_models ] 111 112 return [os.path.join("generated", t) for t in target], source 113 114ARCH_DIR = Dir('.') 115 116# import ply here because SCons screws with sys.path when performing actions. 117import ply 118 119def isa_desc_action_func(target, source, env): 120 # Add the current directory to the system path so we can import files 121 sys.path[0:0] = [ ARCH_DIR.srcnode().abspath ] 122 import isa_parser 123 124 # Skip over the ISA description itself and the parser to the CPU models. 125 models = [ s.get_contents() for s in source[2:] ] 126 cpu_models = [CpuModel.dict[cpu] for cpu in models] 127 parser = isa_parser.ISAParser(target[0].dir.abspath, cpu_models) 128 parser.parse_isa_desc(source[0].abspath) 129isa_desc_action = MakeAction(isa_desc_action_func, Transform("ISA DESC", 1)) 130 131# Also include the CheckerCPU as one of the models if it is being 132# enabled via command line. 133isa_desc_builder = Builder(action=isa_desc_action, emitter=isa_desc_emitter) 134 135env.Append(BUILDERS = { 'ISADesc' : isa_desc_builder }) 136 137DebugFlag('IntRegs') 138DebugFlag('FloatRegs') 139DebugFlag('MiscRegs') 140CompoundFlag('Registers', [ 'IntRegs', 'FloatRegs', 'MiscRegs' ]) 141