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106 lines
2.7 KiB
Python
106 lines
2.7 KiB
Python
#!/usr/bin/python3
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# Create makefile dependencies for VHDL files, looking for "use work" and
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# "entity work" declarations
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import sys
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import re
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import os
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from collections import defaultdict
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if len(sys.argv) == 1 and sys.argv[1] == '--help':
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print("Usage: dependencies.py [--synth]")
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sys.exit(1)
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synth = False
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args = sys.argv[1:]
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if sys.argv[1] == '--synth':
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synth = True
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args = sys.argv[2:]
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# Look at what a file provides
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entity = re.compile('entity (.*) is')
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package = re.compile('package (.*) is')
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# Look at what a file depends on
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work = re.compile('use work\.([^.]+)\.')
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entity_work = re.compile('entity work\.([^;]+)')
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# Synthesis targets
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synth_provides = {
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"dmi_dtm" : "dmi_dtm_dummy.vhdl",
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"clock_generator" : "fpga/clk_gen_bypass.vhd",
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"main_bram" : "fpga/main_bram.vhdl",
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"pp_soc_uart" : "fpga/pp_soc_uart.vhd"
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}
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# Simulation targets
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sim_provides = {
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"dmi_dtm" : "dmi_dtm_xilinx.vhdl",
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"clock_generator" : "fpga/clk_gen_bypass.vhd",
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"main_bram" : "sim_bram.vhdl",
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"pp_soc_uart" : "sim_uart.vhdl"
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}
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if synth:
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provides = synth_provides
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else:
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provides = sim_provides
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dependencies = defaultdict(set)
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for filename in args:
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with open(filename, 'r') as f:
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for line in f:
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l = line.rstrip(os.linesep)
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m = entity.search(l)
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if m:
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p = m.group(1)
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if p not in provides:
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provides[p] = filename
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m = package.search(l)
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if m:
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p = m.group(1)
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if p not in provides:
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provides[p] = filename
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m = work.search(l)
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if m:
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dependency = m.group(1)
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dependencies[filename].add(dependency)
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m = entity_work.search(l)
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if m:
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dependency = m.group(1)
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dependencies[filename].add(dependency)
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emitted = set()
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def chase_dependencies(filename):
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if filename not in dependencies:
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if filename not in emitted:
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print("%s " % (filename), end="")
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emitted.add(filename)
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else:
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for dep in dependencies[filename]:
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f = provides[dep]
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chase_dependencies(f)
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if f not in emitted:
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print("%s " % (f), end="")
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emitted.add(f)
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if synth:
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chase_dependencies("fpga/toplevel.vhdl")
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print("fpga/toplevel.vhdl")
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else:
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for filename in dependencies:
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(basename, suffix) = filename.split('.')
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print("%s.o:" % (basename), end="")
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for dependency in dependencies[filename]:
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p = provides[dependency]
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(basename2, suffix2) = p.split('.')
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print(" %s.o" % (basename2), end="")
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print("")
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