#
# Authors: Steve Reinhardt
-import os.path, sys
+import sys
+import os
-# Import build environment variable from SConstruct.
-Import('env')
-
-# Right now there are no source files immediately in this directory
-sources = []
+Import('*')
#################################################################
#
# List of headers to generate
isa_switch_hdrs = Split('''
- arguments.hh
- constants.hh
- faults.hh
- isa_traits.hh
- process.hh
- regfile.hh
- stacktrace.hh
- tlb.hh
- types.hh
- utility.hh
- vtophys.hh
+ decoder.hh
+ interrupts.hh
+ isa.hh
+ isa_traits.hh
+ kernel_stats.hh
+ locked_mem.hh
+ microcode_rom.hh
+ mmapped_ipr.hh
+ mt.hh
+ process.hh
+ predecoder.hh
+ registers.hh
+ remote_gdb.hh
+ stacktrace.hh
+ tlb.hh
+ types.hh
+ utility.hh
+ vtophys.hh
''')
-# Generate the header. target[0] is the full path of the output
-# header to generate. 'source' is a dummy variable, since we get the
-# list of ISAs from env['ALL_ISA_LIST'].
-def gen_switch_hdr(target, source, env):
- fname = str(target[0])
- basename = os.path.basename(fname)
- f = open(fname, 'w')
- f.write('#include "arch/isa_specific.hh"\n')
- cond = '#if'
- for isa in env['ALL_ISA_LIST']:
- f.write('%s THE_ISA == %s_ISA\n#include "arch/%s/%s"\n'
- % (cond, isa.upper(), isa, basename))
- cond = '#elif'
- f.write('#else\n#error "THE_ISA not set"\n#endif\n')
- f.close()
- return 0
-
-# String to print when generating header
-def gen_switch_hdr_string(target, source, env):
- return "Generating ISA switch header " + str(target[0])
-
-# Build SCons Action object. 'varlist' specifies env vars that this
-# action depends on; when env['ALL_ISA_LIST'] changes these actions
-# should get re-executed.
-switch_hdr_action = Action(gen_switch_hdr, gen_switch_hdr_string,
- varlist=['ALL_ISA_LIST'])
-
-# Instantiate actions for each header
-for hdr in isa_switch_hdrs:
- env.Command(hdr, [], switch_hdr_action)
+# Set up this directory to support switching headers
+make_switching_dir('arch', isa_switch_hdrs, env)
#################################################################
#
# output from the ISA description (*.isa) files.
#
-# Convert to File node to fix path
isa_parser = File('isa_parser.py')
-cpu_models_file = File('../cpu/cpu_models.py')
-
-# This sucks in the defintions of the CpuModel objects.
-execfile(cpu_models_file.srcnode().abspath)
-
-# Several files are generated from the ISA description.
-# We always get the basic decoder and header file.
-isa_desc_gen_files = Split('decoder.cc decoder.hh')
-# We also get an execute file for each selected CPU model.
-isa_desc_gen_files += [CpuModel.dict[cpu].filename
- for cpu in env['CPU_MODELS']]
-
-# Also include the CheckerCPU as one of the models if it is being
-# enabled via command line.
-if env['USE_CHECKER']:
- isa_desc_gen_files += [CpuModel.dict['CheckerCPU'].filename]
# The emitter patches up the sources & targets to include the
# autogenerated files as targets and isa parser itself as a source.
def isa_desc_emitter(target, source, env):
- return (isa_desc_gen_files, [isa_parser, cpu_models_file] + source)
+ cpu_models = list(env['CPU_MODELS'])
+ cpu_models.append('CheckerCPU')
-# Pieces are in place, so create the builder.
-python = sys.executable # use same Python binary used to run scons
+ # Several files are generated from the ISA description.
+ # We always get the basic decoder and header file.
+ target = [ 'decoder.cc', 'decoder.hh', 'max_inst_regs.hh' ]
+ # We also get an execute file for each selected CPU model.
+ target += [CpuModel.dict[cpu].filename for cpu in cpu_models]
-# Also include the CheckerCPU as one of the models if it is being
-# enabled via command line.
-if env['USE_CHECKER']:
- isa_desc_builder = Builder(action=python + ' $SOURCES $TARGET.dir $CPU_MODELS CheckerCPU',
- emitter = isa_desc_emitter)
-else:
- isa_desc_builder = Builder(action=python + ' $SOURCES $TARGET.dir $CPU_MODELS',
- emitter = isa_desc_emitter)
+ # List the isa parser as a source.
+ source += [ isa_parser ]
+ # Add in the CPU models.
+ source += [ Value(m) for m in cpu_models ]
-env.Append(BUILDERS = { 'ISADesc' : isa_desc_builder })
+ return [os.path.join("generated", t) for t in target], source
-#
-# Now include other ISA-specific sources from the ISA subdirectories.
-#
+ARCH_DIR = Dir('.')
+
+# import ply here because SCons screws with sys.path when performing actions.
+import ply
+
+def isa_desc_action_func(target, source, env):
+ # Add the current directory to the system path so we can import files
+ sys.path[0:0] = [ ARCH_DIR.srcnode().abspath ]
+ import isa_parser
-isa = env['TARGET_ISA'] # someday this may be a list of ISAs
+ # Skip over the ISA description itself and the parser to the CPU models.
+ models = [ s.get_contents() for s in source[2:] ]
+ cpu_models = [CpuModel.dict[cpu] for cpu in models]
+ parser = isa_parser.ISAParser(target[0].dir.abspath, cpu_models)
+ parser.parse_isa_desc(source[0].abspath)
+isa_desc_action = MakeAction(isa_desc_action_func, Transform("ISA DESC", 1))
-# Let the target architecture define what additional sources it needs
-sources += SConscript(os.path.join(isa, 'SConscript'), exports = 'env')
+# Also include the CheckerCPU as one of the models if it is being
+# enabled via command line.
+isa_desc_builder = Builder(action=isa_desc_action, emitter=isa_desc_emitter)
+
+env.Append(BUILDERS = { 'ISADesc' : isa_desc_builder })
-Return('sources')
+DebugFlag('IntRegs')
+DebugFlag('FloatRegs')
+DebugFlag('MiscRegs')
+CompoundFlag('Registers', [ 'IntRegs', 'FloatRegs', 'MiscRegs' ])
projects / gem5.git / blobdiff