1# -*- mode:python -*-
2
3# Copyright (c) 2016 ARM Limited
4# All rights reserved.
5#
6# The license below extends only to copyright in the software and shall
7# not be construed as granting a license to any other intellectual
8# property including but not limited to intellectual property relating
--- 83 unchanged lines hidden (view full) ---
92# Include architecture-specific files.
93#
94#################################################################
95
96#
97# Build a SCons scanner for ISA files
98#
99import SCons.Scanner
100
101isa_scanner = SCons.Scanner.Classic("ISAScan",
102 [".isa", ".ISA"],
103 "SRCDIR",
104 r'^\s*##include\s+"([\w/.-]*)"')
105
106env.Append(SCANNERS = isa_scanner)
107
108#
109# Now create a Builder object that uses isa_parser.py to generate C++
110# output from the ISA description (*.isa) files.
111#
112
113isa_parser = File('isa_parser.py')
114
115# The emitter patches up the sources & targets to include the
116# autogenerated files as targets and isa parser itself as a source.
117def isa_desc_emitter(target, source, env):
118 # List the isa parser as a source.
119 source += [
120 isa_parser,
121 Value("ExecContext"),
122 ]
123
124 # Specify different targets depending on if we're running the ISA
125 # parser for its dependency information, or for the generated files.
126 # (As an optimization, the ISA parser detects the useless second run
127 # and skips doing any work, if the first run was performed, since it
128 # always generates all its files). The way we track this in SCons is the
129 # <arch>_isa_outputs value in the environment (env). If it's unset, we
130 # don't know what the dependencies are so we ask for generated/inc.d to
131 # be generated so they can be acquired. If we know what they are, then
132 # it's because we've already processed inc.d and then claim that our
133 # outputs (targets) will be thus.
134 isa = env['TARGET_ISA']
135 key = '%s_isa_outputs' % isa
136 if key in env:
137 targets = [ os.path.join('generated', f) for f in env[key] ]
138 else:
139 targets = [ os.path.join('generated','inc.d') ]
140
141 def prefix(s):
142 return os.path.join(target[0].dir.up().abspath, s)
143
144 return [ prefix(t) for t in targets ], source
145
146ARCH_DIR = Dir('.')
147
148# import ply here because SCons screws with sys.path when performing actions.
149import ply
150
151def isa_desc_action_func(target, source, env):
152 # Add the current directory to the system path so we can import files
153 sys.path[0:0] = [ ARCH_DIR.srcnode().abspath ]
154 import isa_parser
155
156 # Skip over the ISA description itself and the parser to the CPU models.
157 models = [ s.get_contents() for s in source[2:] ]
158 parser = isa_parser.ISAParser(target[0].dir.abspath)
159 parser.parse_isa_desc(source[0].abspath)
160isa_desc_action = MakeAction(isa_desc_action_func, Transform("ISA DESC", 1))
161
162# Also include the CheckerCPU as one of the models if it is being
163# enabled via command line.
164isa_desc_builder = Builder(action=isa_desc_action, emitter=isa_desc_emitter)
165
166env.Append(BUILDERS = { 'ISADesc' : isa_desc_builder })
167
168# The ISA is generated twice: the first time to find out what it generates,
169# and the second time to make scons happy by telling the ISADesc builder
170# what it will make before it builds it.
171def scan_isa_deps(target, source, env):
172 # Process dependency file generated by the ISA parser --
173 # add the listed files to the dependency tree of the build.
174 source = source[0]
175 archbase = source.dir.up().path
176
177 try:
178 depfile = open(source.abspath, 'r')
179 except:
180 print "scan_isa_deps: Can't open ISA deps file '%s' in %s" % \
181 (source.path,os.getcwd())
182 raise
183
184 # Scan through the lines
185 targets = {}
186 for line in depfile:
187 # Read the dependency line with the format
188 # <target file>: [ <dependent file>* ]
189 m = re.match(r'^\s*([^:]+\.([^\.:]+))\s*:\s*(.*)', line)
190 assert(m)
191 targ, extn = m.group(1,2)
192 deps = m.group(3).split()
193
194 files = [ targ ] + deps
195 for f in files:
196 targets[f] = True
197 # Eliminate unnecessary re-generation if we already generated it
198 env.Precious(os.path.join(archbase, 'generated', f))
199
200 files = [ os.path.join(archbase, 'generated', f) for f in files ]
201
202 if extn == 'cc':
203 Source(os.path.join(archbase,'generated', targ))
204 depfile.close()
205 env[env['TARGET_ISA'] + '_isa_outputs'] = targets.keys()
206
207 isa = env.ISADesc(os.path.join(archbase,'isa','main.isa'))
208 for t in targets:
209 env.Depends('#all-isas', isa)
210
211env.Append(BUILDERS = {'ScanISA' :
212 Builder(action=MakeAction(scan_isa_deps,
213 Transform("NEW DEPS", 1)))})
214
215DebugFlag('IntRegs')
216DebugFlag('FloatRegs')
217DebugFlag('VecRegs')
218DebugFlag('CCRegs')
219DebugFlag('MiscRegs')
220CompoundFlag('Registers', [ 'IntRegs', 'FloatRegs', 'CCRegs', 'MiscRegs' ])
2
3# Copyright (c) 2016 ARM Limited
4# All rights reserved.
5#
6# The license below extends only to copyright in the software and shall
7# not be construed as granting a license to any other intellectual
8# property including but not limited to intellectual property relating
--- 83 unchanged lines hidden (view full) ---
92# Include architecture-specific files.
93#
94#################################################################
95
96#
97# Build a SCons scanner for ISA files
98#
99import SCons.Scanner
100
101isa_scanner = SCons.Scanner.Classic("ISAScan",
102 [".isa", ".ISA"],
103 "SRCDIR",
104 r'^\s*##include\s+"([\w/.-]*)"')
105
106env.Append(SCANNERS = isa_scanner)
107
108#
109# Now create a Builder object that uses isa_parser.py to generate C++
110# output from the ISA description (*.isa) files.
111#
112
113isa_parser = File('isa_parser.py')
114
115# The emitter patches up the sources & targets to include the
116# autogenerated files as targets and isa parser itself as a source.
117def isa_desc_emitter(target, source, env):
118 # List the isa parser as a source.
119 source += [
120 isa_parser,
121 Value("ExecContext"),
122 ]
123
124 # Specify different targets depending on if we're running the ISA
125 # parser for its dependency information, or for the generated files.
126 # (As an optimization, the ISA parser detects the useless second run
127 # and skips doing any work, if the first run was performed, since it
128 # always generates all its files). The way we track this in SCons is the
129 # <arch>_isa_outputs value in the environment (env). If it's unset, we
130 # don't know what the dependencies are so we ask for generated/inc.d to
131 # be generated so they can be acquired. If we know what they are, then
132 # it's because we've already processed inc.d and then claim that our
133 # outputs (targets) will be thus.
134 isa = env['TARGET_ISA']
135 key = '%s_isa_outputs' % isa
136 if key in env:
137 targets = [ os.path.join('generated', f) for f in env[key] ]
138 else:
139 targets = [ os.path.join('generated','inc.d') ]
140
141 def prefix(s):
142 return os.path.join(target[0].dir.up().abspath, s)
143
144 return [ prefix(t) for t in targets ], source
145
146ARCH_DIR = Dir('.')
147
148# import ply here because SCons screws with sys.path when performing actions.
149import ply
150
151def isa_desc_action_func(target, source, env):
152 # Add the current directory to the system path so we can import files
153 sys.path[0:0] = [ ARCH_DIR.srcnode().abspath ]
154 import isa_parser
155
156 # Skip over the ISA description itself and the parser to the CPU models.
157 models = [ s.get_contents() for s in source[2:] ]
158 parser = isa_parser.ISAParser(target[0].dir.abspath)
159 parser.parse_isa_desc(source[0].abspath)
160isa_desc_action = MakeAction(isa_desc_action_func, Transform("ISA DESC", 1))
161
162# Also include the CheckerCPU as one of the models if it is being
163# enabled via command line.
164isa_desc_builder = Builder(action=isa_desc_action, emitter=isa_desc_emitter)
165
166env.Append(BUILDERS = { 'ISADesc' : isa_desc_builder })
167
168# The ISA is generated twice: the first time to find out what it generates,
169# and the second time to make scons happy by telling the ISADesc builder
170# what it will make before it builds it.
171def scan_isa_deps(target, source, env):
172 # Process dependency file generated by the ISA parser --
173 # add the listed files to the dependency tree of the build.
174 source = source[0]
175 archbase = source.dir.up().path
176
177 try:
178 depfile = open(source.abspath, 'r')
179 except:
180 print "scan_isa_deps: Can't open ISA deps file '%s' in %s" % \
181 (source.path,os.getcwd())
182 raise
183
184 # Scan through the lines
185 targets = {}
186 for line in depfile:
187 # Read the dependency line with the format
188 # <target file>: [ <dependent file>* ]
189 m = re.match(r'^\s*([^:]+\.([^\.:]+))\s*:\s*(.*)', line)
190 assert(m)
191 targ, extn = m.group(1,2)
192 deps = m.group(3).split()
193
194 files = [ targ ] + deps
195 for f in files:
196 targets[f] = True
197 # Eliminate unnecessary re-generation if we already generated it
198 env.Precious(os.path.join(archbase, 'generated', f))
199
200 files = [ os.path.join(archbase, 'generated', f) for f in files ]
201
202 if extn == 'cc':
203 Source(os.path.join(archbase,'generated', targ))
204 depfile.close()
205 env[env['TARGET_ISA'] + '_isa_outputs'] = targets.keys()
206
207 isa = env.ISADesc(os.path.join(archbase,'isa','main.isa'))
208 for t in targets:
209 env.Depends('#all-isas', isa)
210
211env.Append(BUILDERS = {'ScanISA' :
212 Builder(action=MakeAction(scan_isa_deps,
213 Transform("NEW DEPS", 1)))})
214
215DebugFlag('IntRegs')
216DebugFlag('FloatRegs')
217DebugFlag('VecRegs')
218DebugFlag('CCRegs')
219DebugFlag('MiscRegs')
220CompoundFlag('Registers', [ 'IntRegs', 'FloatRegs', 'CCRegs', 'MiscRegs' ])