kc3-lang/angle/android/compress_symbols.py

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• Hash : d7d42395
  Author :
  Date : 2019-05-06T13:15:35
  

  Format all of ANGLE's python code.
  
  BUG=angleproject:3421
  
  Change-Id: I1d7282ac513c046de5d8ed87f7789290780d30a6
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1595440
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  

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• android/compress_symbols.py

• #!/usr/bin/env python
  #  Copyright 2018 The ANGLE Project Authors. All rights reserved.
  #  Use of this source code is governed by a BSD-style license that can be
  #  found in the LICENSE file.
  
  # Generate library file with compressed symbols per Android build
  # process.
  #
  
  import argparse
  import os
  import subprocess
  import sys
  
  
  def main():
      parser = argparse.ArgumentParser(description=__doc__)
      parser.add_argument(
          '--objcopy', required=True, help='The objcopy binary to run', metavar='PATH')
      parser.add_argument('--nm', required=True, help='The nm binary to run', metavar='PATH')
      parser.add_argument(
          '--sofile',
          required=True,
          help='Shared object file produced by linking command',
          metavar='FILE')
      parser.add_argument(
          '--output', required=True, help='Final output shared object file', metavar='FILE')
      parser.add_argument(
          '--unstrippedsofile',
          required=True,
          help='Unstripped shared object file produced by linking command',
          metavar='FILE')
      args = parser.parse_args()
  
      copy_cmd = ["cp", args.sofile, args.output]
      result = subprocess.call(copy_cmd)
  
      objcopy_cmd = [args.objcopy]
      objcopy_cmd.append('--only-keep-debug')
      objcopy_cmd.append(args.unstrippedsofile)
      objcopy_cmd.append(args.output + '.debug')
      result = subprocess.call(objcopy_cmd)
  
      nm_cmd = subprocess.Popen([args.nm, args.unstrippedsofile, '--format=posix', '--defined-only'],
                                stdout=subprocess.PIPE)
  
      awk_cmd = subprocess.Popen(['awk', '{ print $1}'], stdin=nm_cmd.stdout, stdout=subprocess.PIPE)
  
      dynsym_out = open(args.output + '.dynsyms', 'w')
      sort_cmd = subprocess.Popen(['sort'], stdin=awk_cmd.stdout, stdout=dynsym_out)
      dynsym_out.close()
  
      nm_cmd = subprocess.Popen([args.nm, args.unstrippedsofile, '--format=posix', '--defined-only'],
                                stdout=subprocess.PIPE)
  
      awk_cmd = subprocess.Popen(
          ['awk', '{ if ($2 == "T" || $2 == "t" ||' + ' $2 == "D") print $1 }'],
          stdin=nm_cmd.stdout,
          stdout=subprocess.PIPE)
  
      funcsyms_out = open(args.output + '.funcsyms', 'w')
      sort_cmd = subprocess.Popen(['sort'], stdin=awk_cmd.stdout, stdout=funcsyms_out)
      funcsyms_out.close()
  
      keep_symbols = open(args.output + '.keep_symbols', 'w')
      sort_cmd = subprocess.Popen(
          ['comm', '-13', args.output + '.dynsyms', args.output + '.funcsyms'],
          stdin=awk_cmd.stdout,
          stdout=keep_symbols)
  
      # Ensure that the keep_symbols file is not empty.
      keep_symbols.write("\n")
      keep_symbols.close()
  
      objcopy_cmd = [
          args.objcopy, '--rename-section', '.debug_frame=saved_debug_frame', args.output + '.debug',
          args.output + ".mini_debuginfo"
      ]
      subprocess.check_call(objcopy_cmd)
  
      objcopy_cmd = [
          args.objcopy, '-S', '--remove-section', '.gdb_index', '--remove-section', '.comment',
          '--keep-symbols=' + args.output + '.keep_symbols', args.output + '.mini_debuginfo'
      ]
      subprocess.check_call(objcopy_cmd)
  
      objcopy_cmd = [
          args.objcopy, '--rename-section', '.saved_debug_frame=.debug_frame',
          args.output + ".mini_debuginfo"
      ]
      subprocess.check_call(objcopy_cmd)
  
      xz_cmd = ['xz', args.output + '.mini_debuginfo']
      subprocess.check_call(xz_cmd)
  
      objcopy_cmd = [
          args.objcopy, '--add-section', '.gnu_debugdata=' + args.output + '.mini_debuginfo.xz',
          args.output
      ]
      subprocess.check_call(objcopy_cmd)
  
      # Clean out scratch files
      rm_cmd = [
          'rm', '-f', args.output + '.dynsyms', args.output + '.funcsyms',
          args.output + '.keep_symbols', args.output + '.debug', args.output + '.mini_debuginfo',
          args.output + '.mini_debuginfo.xz'
      ]
      result = subprocess.call(rm_cmd)
  
      return result
  
  
  if __name__ == "__main__":
      sys.exit(main())
  

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