SConscript (9920:028e4da64b42) | SConscript (10196:be0e1724eb39) |
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1# -*- mode:python -*- 2 3# Copyright (c) 2006 The Regents of The University of Michigan 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions are 8# met: redistributions of source code must retain the above copyright --- 16 unchanged lines hidden (view full) --- 25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28# 29# Authors: Steve Reinhardt 30 31import sys 32import os | 1# -*- mode:python -*- 2 3# Copyright (c) 2006 The Regents of The University of Michigan 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions are 8# met: redistributions of source code must retain the above copyright --- 16 unchanged lines hidden (view full) --- 25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28# 29# Authors: Steve Reinhardt 30 31import sys 32import os |
33import re |
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33 34Import('*') 35 36################################################################# 37# 38# ISA "switch header" generation. 39# 40# Auto-generate arch headers that include the right ISA-specific --- 51 unchanged lines hidden (view full) --- 92isa_parser = File('isa_parser.py') 93 94# The emitter patches up the sources & targets to include the 95# autogenerated files as targets and isa parser itself as a source. 96def isa_desc_emitter(target, source, env): 97 cpu_models = list(env['CPU_MODELS']) 98 cpu_models.append('CheckerCPU') 99 | 34 35Import('*') 36 37################################################################# 38# 39# ISA "switch header" generation. 40# 41# Auto-generate arch headers that include the right ISA-specific --- 51 unchanged lines hidden (view full) --- 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 |
100 # Several files are generated from the ISA description. 101 # We always get the basic decoder and header file. 102 target = [ 'decoder.cc', 'decoder.hh', 'max_inst_regs.hh' ] 103 # We also get an execute file for each selected CPU model. 104 target += [CpuModel.dict[cpu].filename for cpu in cpu_models] 105 | |
106 # List the isa parser as a source. 107 source += [ isa_parser ] 108 # Add in the CPU models. 109 source += [ Value(m) for m in cpu_models ] 110 | 101 # List the isa parser as a source. 102 source += [ isa_parser ] 103 # Add in the CPU models. 104 source += [ Value(m) for m in cpu_models ] 105 |
111 return [os.path.join("generated", t) for t in target], source | 106 # Specify different targets depending on if we're running the ISA 107 # parser for its dependency information, or for the generated files. 108 # (As an optimization, the ISA parser detects the useless second run 109 # and skips doing any work, if the first run was performed, since it 110 # always generates all its files). The way we track this in SCons is the 111 # <arch>_isa_outputs value in the environment (env). If it's unset, we 112 # don't know what the dependencies are so we ask for generated/inc.d to 113 # be generated so they can be acquired. If we know what they are, then 114 # it's because we've already processed inc.d and then claim that our 115 # outputs (targets) will be thus. 116 isa = env['TARGET_ISA'] 117 key = '%s_isa_outputs' % isa 118 if key in env: 119 targets = [ os.path.join('generated', f) for f in env[key] ] 120 else: 121 targets = [ os.path.join('generated','inc.d') ] |
112 | 122 |
123 def prefix(s): 124 return os.path.join(target[0].dir.up().abspath, s) 125 126 return [ prefix(t) for t in targets ], source 127 |
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113ARCH_DIR = Dir('.') 114 115# import ply here because SCons screws with sys.path when performing actions. 116import ply 117 118def isa_desc_action_func(target, source, env): 119 # Add the current directory to the system path so we can import files 120 sys.path[0:0] = [ ARCH_DIR.srcnode().abspath ] --- 7 unchanged lines hidden (view full) --- 128isa_desc_action = MakeAction(isa_desc_action_func, Transform("ISA DESC", 1)) 129 130# Also include the CheckerCPU as one of the models if it is being 131# enabled via command line. 132isa_desc_builder = Builder(action=isa_desc_action, emitter=isa_desc_emitter) 133 134env.Append(BUILDERS = { 'ISADesc' : isa_desc_builder }) 135 | 128ARCH_DIR = Dir('.') 129 130# import ply here because SCons screws with sys.path when performing actions. 131import ply 132 133def isa_desc_action_func(target, source, env): 134 # Add the current directory to the system path so we can import files 135 sys.path[0:0] = [ ARCH_DIR.srcnode().abspath ] --- 7 unchanged lines hidden (view full) --- 143isa_desc_action = MakeAction(isa_desc_action_func, Transform("ISA DESC", 1)) 144 145# Also include the CheckerCPU as one of the models if it is being 146# enabled via command line. 147isa_desc_builder = Builder(action=isa_desc_action, emitter=isa_desc_emitter) 148 149env.Append(BUILDERS = { 'ISADesc' : isa_desc_builder }) 150 |
151# The ISA is generated twice: the first time to find out what it generates, 152# and the second time to make scons happy by telling the ISADesc builder 153# what it will make before it builds it. 154def scan_isa_deps(target, source, env): 155 # Process dependency file generated by the ISA parser -- 156 # add the listed files to the dependency tree of the build. 157 source = source[0] 158 archbase = source.dir.up().path 159 160 try: 161 depfile = open(source.abspath, 'r') 162 except: 163 print "scan_isa_deps: Can't open ISA deps file '%s' in %s" % \ 164 (source.path,os.getcwd()) 165 raise 166 167 # Scan through the lines 168 targets = {} 169 for line in depfile: 170 # Read the dependency line with the format 171 # <target file>: [ <dependent file>* ] 172 m = re.match(r'^\s*([^:]+\.([^\.:]+))\s*:\s*(.*)', line) 173 assert(m) 174 targ, extn = m.group(1,2) 175 deps = m.group(3).split() 176 177 files = [ targ ] + deps 178 for f in files: 179 targets[f] = True 180 # Eliminate unnecessary re-generation if we already generated it 181 env.Precious(os.path.join(archbase, 'generated', f)) 182 183 files = [ os.path.join(archbase, 'generated', f) for f in files ] 184 185 if extn == 'cc': 186 Source(os.path.join(archbase,'generated', targ)) 187 depfile.close() 188 env[env['TARGET_ISA'] + '_isa_outputs'] = targets.keys() 189 190 isa = env.ISADesc(os.path.join(archbase,'isa','main.isa')) 191 for t in targets: 192 env.Depends('#all-isas', isa) 193 194env.Append(BUILDERS = {'ScanISA' : 195 Builder(action=MakeAction(scan_isa_deps, 196 Transform("NEW DEPS", 1)))}) 197 |
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136DebugFlag('IntRegs') 137DebugFlag('FloatRegs') 138DebugFlag('CCRegs') 139DebugFlag('MiscRegs') 140CompoundFlag('Registers', [ 'IntRegs', 'FloatRegs', 'CCRegs', 'MiscRegs' ]) | 198DebugFlag('IntRegs') 199DebugFlag('FloatRegs') 200DebugFlag('CCRegs') 201DebugFlag('MiscRegs') 202CompoundFlag('Registers', [ 'IntRegs', 'FloatRegs', 'CCRegs', 'MiscRegs' ]) |