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![Ryan Macnak](/assets/img/avatar_default.png)
Reduces VM code size by about 33k. TEST=ci Change-Id: Ifc74284fa69fe209ebf12566ca81bda765f19057 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/202863 Reviewed-by: Régis Crelier <regis@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>
179 lines
5.4 KiB
Python
Executable file
179 lines
5.4 KiB
Python
Executable file
#!/usr/bin/env python3
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#
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# Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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# for details. All rights reserved. Use of this source code is governed by a
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# BSD-style license that can be found in the LICENSE file.
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"""Script to create snapshot bin file."""
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import getopt
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import optparse
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import os
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from os.path import basename, join
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import sys
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import utils
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def BuildOptions():
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result = optparse.OptionParser()
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result.add_option(
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"--executable",
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action="store",
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type="string",
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help="path to snapshot generator executable")
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result.add_option(
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"--snapshot_kind",
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action="store",
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type="string",
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help="kind of snapshot to generate",
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default="core")
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result.add_option(
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"--vm_flag",
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action="append",
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type="string",
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default=[],
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help="pass additional Dart VM flag")
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result.add_option(
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"--vm_output_bin",
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action="store",
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type="string",
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help="output file name into which vm isolate snapshot in binary form " +
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"is generated")
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result.add_option(
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"--vm_instructions_output_bin",
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action="store",
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type="string",
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help="output file name into which vm isolate snapshot in binary form " +
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"is generated")
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result.add_option(
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"--isolate_output_bin",
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action="store",
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type="string",
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help="output file name into which isolate snapshot in binary form " +
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"is generated")
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result.add_option(
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"--isolate_instructions_output_bin",
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action="store",
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type="string",
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help="output file name into which isolate snapshot in binary form " +
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"is generated")
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result.add_option(
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"--script",
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action="store",
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type="string",
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help="Dart script for which snapshot is to be generated")
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result.add_option(
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"--packages",
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action="store",
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type="string",
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help="package config file used to reasolve package: imports.")
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result.add_option(
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"-v",
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"--verbose",
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help='Verbose output.',
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default=False,
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action="store_true")
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result.add_option(
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"--timestamp_file",
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action="store",
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type="string",
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help="Path to timestamp file that will be written",
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default="")
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return result
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def ProcessOptions(options):
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if not options.executable:
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sys.stderr.write('--executable not specified\n')
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return False
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if not options.snapshot_kind:
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sys.stderr.write('--snapshot_kind not specified\n')
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return False
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if not options.vm_output_bin:
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sys.stderr.write('--vm_output_bin not specified\n')
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return False
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if not options.isolate_output_bin:
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sys.stderr.write('--isolate_output_bin not specified\n')
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return False
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if (options.snapshot_kind == 'core-jit' and
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not options.vm_instructions_output_bin):
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sys.stderr.write('--vm_instructions_output_bin not specified\n')
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return False
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if (options.snapshot_kind == 'core-jit' and
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not options.isolate_instructions_output_bin):
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sys.stderr.write('--isolate_instructions_output_bin not specified\n')
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return False
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return True
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def CreateTimestampFile(options):
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if options.timestamp_file != '':
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dir_name = os.path.dirname(options.timestamp_file)
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if not os.path.exists(dir_name):
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os.mkdir(dir_name)
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open(options.timestamp_file, 'w').close()
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def Main():
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# Parse options.
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parser = BuildOptions()
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(options, args) = parser.parse_args()
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if not ProcessOptions(options):
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parser.print_help()
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return 1
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# If there are additional arguments, report error and exit.
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if args:
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parser.print_help()
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return 1
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# Setup arguments to the snapshot generator binary.
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script_args = ["--ignore_unrecognized_flags"]
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for flag in options.vm_flag:
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script_args.append(flag)
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# Pass along the packages if there is one.
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if options.packages:
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script_args.append(''.join(["--packages=", options.packages]))
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# First setup the vm isolate and regular isolate snapshot output filename.
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script_args.append(''.join(["--snapshot_kind=", options.snapshot_kind]))
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script_args.append(''.join(["--vm_snapshot_data=", options.vm_output_bin]))
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script_args.append(''.join(
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["--isolate_snapshot_data=", options.isolate_output_bin]))
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if options.vm_instructions_output_bin != None:
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script_args.append(''.join(
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["--vm_snapshot_instructions=",
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options.vm_instructions_output_bin]))
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if options.isolate_instructions_output_bin != None:
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script_args.append(''.join([
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"--isolate_snapshot_instructions=",
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options.isolate_instructions_output_bin
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]))
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# Finally append the script name if one is specified.
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if options.script:
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script_args.append(options.script)
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# Construct command line to execute the snapshot generator binary and invoke.
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command = [options.executable] + script_args
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try:
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utils.RunCommand(
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command,
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outStream=sys.stderr,
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errStream=sys.stderr,
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verbose=options.verbose,
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printErrorInfo=True)
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except Exception as e:
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return -1
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# Success, update timestamp file.
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CreateTimestampFile(options)
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return 0
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if __name__ == '__main__':
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sys.exit(Main())
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