mirror of
https://github.com/verilator/verilator.git
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117 lines
4.2 KiB
Python
Executable File
117 lines
4.2 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- Python -*- See copyright, etc below
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# pylint: disable=C0103,C0114,C0115,C0209,R0903
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######################################################################
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import argparse
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import json
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import os
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import re
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import subprocess
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from shutil import copy2
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from tempfile import NamedTemporaryFile
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# from pprint import pprint, pformat
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#######################################################################
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class VlFileCopy:
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def __init__(
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self,
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verilator_args, # presently all verilator options are passed-thru
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debug=0,
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output_dir='copied'): # directory name we output file uses
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self.debug = debug
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with NamedTemporaryFile() as tree_temp, NamedTemporaryFile() as meta_temp:
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vargs = [
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'--json-only-output',
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tree_temp.name,
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'--json-only-meta-output',
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meta_temp.name,
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'--bbox-sys', # Parse some stuff can't translate
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'--bbox-unsup',
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'--prefix vljson'
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]
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vargs += verilator_args
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self.run_verilator(vargs)
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self.tree = json.load(tree_temp)
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self.meta = json.load(meta_temp)
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os.makedirs(output_dir, 0o777, True)
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for file_id in self.meta['files']:
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path = self.meta['files'][file_id]['realpath']
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if not re.match('^<', path): # e.g. <built-in>
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if self.debug:
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print("\tcp %s %s" % (path, output_dir))
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copy2(path, output_dir)
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def run_verilator(self, vargs):
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"""Run Verilator command, check errors"""
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if os.getenv("VERILATOR_ROOT"):
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command = os.getenv("VERILATOR_ROOT") + "/bin/verilator"
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else:
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command = "verilator"
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command += ' ' + ' '.join(vargs)
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if self.debug:
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print("\t%s " % command)
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status = subprocess.call(command, shell=True)
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if status != 0:
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raise RuntimeError("Command failed running Verilator with '" + command + "', stopped")
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#######################################################################
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(
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allow_abbrev=False,
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formatter_class=argparse.RawTextHelpFormatter,
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description="""Example of using Verilator JSON output to copy a list of files to an
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output directory (-odir, defaults to 'copied'), e.g. to easily create a
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tarball of the design to pass to others.
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Example usage:
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vl_file_copy -f input.vc top.v -odir mycopy
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# This will make at least mycopy/top.v
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""",
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epilog="""All other arguments are pass-thru to Verilator: e.g.:
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+define+<var>=<value> Set preprocessor define
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-F <file> Parse options from a file, relatively
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-f <file> Parse options from a file
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-G<name>=<value> Overwrite toplevel parameter
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+incdir+<dir> Directory to search for includes
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+libext+<ext>+[ext]... Extensions for finding modules
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-v <filename> Verilog library
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-y <dir> Directory to search for modules
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This file ONLY is placed under the Creative Commons Public Domain, for
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any use, without warranty, 2019 by Wilson Snyder.
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SPDX-License-Identifier: CC0-1.0
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""")
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parser.add_argument('-debug', '--debug', action='store_const', const=9, help='enable debug')
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parser.add_argument('-odir',
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'--odir',
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action='store',
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metavar='directory',
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required=True,
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help='target output directory')
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(args, rem) = parser.parse_known_args()
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print("NOTE: vl_file_copy is only an example starting point for writing your own tool.")
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# That is:
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# 1. We will accept basic patches
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# 2. We are not expecting to make this globally useful. (e.g. we don't cleanup obj_dir)
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# 3. "make install" will not install this.
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# 4. This has not had production-worthy validation.
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fc = VlFileCopy(output_dir=args.odir, debug=args.debug, verilator_args=rem)
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######################################################################
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# Local Variables:
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# compile-command: "./vl_file_copy -h ; VERILATOR_ROOT=$V4 ./vl_file_copy +define+thru top.v"
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# End:
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