Merging 18 commit(s) from Chromium's toolchain-utils am: 0ae38c8498 am: 2a19d36a82 am: e617e3393dr_aml_301500702android-mainline-12.0.0_r55android-mainline-11.0.0_r9android-mainline-11.0.0_r8android-mainline-11.0.0_r7android-mainline-11.0.0_r6android-mainline-11.0.0_r5android-mainline-11.0.0_r45android-mainline-11.0.0_r44android-mainline-11.0.0_r43android-mainline-11.0.0_r42android-mainline-11.0.0_r41android-mainline-11.0.0_r40android-mainline-11.0.0_r4android-mainline-11.0.0_r39android-mainline-11.0.0_r38android-mainline-11.0.0_r37android-mainline-11.0.0_r36android-mainline-11.0.0_r35android-mainline-11.0.0_r34android-mainline-11.0.0_r33android-mainline-11.0.0_r32android-mainline-11.0.0_r31android-mainline-11.0.0_r30android-mainline-11.0.0_r3android-mainline-11.0.0_r29android-mainline-11.0.0_r28android-mainline-11.0.0_r27android-mainline-11.0.0_r26android-mainline-11.0.0_r25android-mainline-11.0.0_r24android-mainline-11.0.0_r23android-mainline-11.0.0_r22android-mainline-11.0.0_r21android-mainline-11.0.0_r20android-mainline-11.0.0_r2android-mainline-11.0.0_r19android-mainline-11.0.0_r18android-mainline-11.0.0_r17android-mainline-11.0.0_r16android-mainline-11.0.0_r15android-mainline-11.0.0_r14android-mainline-11.0.0_r13android-mainline-11.0.0_r12android-mainline-11.0.0_r10android-mainline-11.0.0_r1android-11.0.0_r48android-11.0.0_r47android-11.0.0_r46android-11.0.0_r45android-11.0.0_r44android-11.0.0_r43android-11.0.0_r42android-11.0.0_r41android-11.0.0_r40android-11.0.0_r39android-11.0.0_r38android-11.0.0_r37android-11.0.0_r36android-11.0.0_r35android-11.0.0_r34android-11.0.0_r33android-11.0.0_r32android-11.0.0_r31android-11.0.0_r30android-11.0.0_r29android-11.0.0_r28android-11.0.0_r27android-11.0.0_r26android-11.0.0_r24android-11.0.0_r23android-11.0.0_r22android-11.0.0_r21android-11.0.0_r20android-11.0.0_r19android-11.0.0_r18android-11.0.0_r16android11-qpr3-s1-releaseandroid11-qpr3-releaseandroid11-qpr2-releaseandroid11-qpr1-s2-releaseandroid11-qpr1-s1-releaseandroid11-qpr1-releaseandroid11-qpr1-d-s1-releaseandroid11-qpr1-d-releaseandroid11-qpr1-c-releaseandroid11-mainline-tethering-releaseandroid11-mainline-sparse-2021-jan-releaseandroid11-mainline-sparse-2020-dec-releaseandroid11-mainline-releaseandroid11-mainline-permission-releaseandroid11-mainline-os-statsd-releaseandroid11-mainline-networkstack-releaseandroid11-mainline-media-swcodec-releaseandroid11-mainline-media-releaseandroid11-mainline-extservices-releaseandroid11-mainline-documentsui-releaseandroid11-mainline-conscrypt-releaseandroid11-mainline-cellbroadcast-releaseandroid11-mainline-captiveportallogin-releaseandroid11-devandroid11-d2-releaseandroid11-d1-b-release

Change-Id: I3f25c7ee034b2e20e37ed941b8eae24eec7043eb

1 files changed, 233 insertions, 0 deletions

diff --git a/deprecated/verify_compiler.py b/deprecated/verify_compiler.py
new file mode 100755
index 00000000..b70c1257
--- /dev/null
+++ b/deprecated/verify_compiler.py
@@ -0,0 +1,233 @@
+#!/usr/bin/env python2
+"""Verify that a ChromeOS sub-tree was built with a particular compiler"""
+
+from __future__ import print_function
+
+import argparse
+import fnmatch
+import os
+import sys
+
+from cros_utils import command_executer
+
+COMPILERS = ['gcc', 'clang']
+
+COMPILER_STRINGS = {'gcc': 'GNU C', 'clang': 'clang version'}
+
+ERR_NO_DEBUG_INFO = 1024
+
+
+def UsageError(parser, message):
+  """Output error message and help/usage info."""
+
+  print('ERROR: %s' % message)
+  parser.print_help()
+  sys.exit(0)
+
+
+def CreateTmpDwarfFile(filename, dwarf_file, cmd_executer):
+  """Create temporary dwarfdump file, to be parsed later."""
+
+  cmd = ('readelf --debug-dump=info %s | grep -A5 DW_AT_producer > %s' %
+         (filename, dwarf_file))
+  retval = cmd_executer.RunCommand(cmd, print_to_console=False)
+  return retval
+
+
+def FindAllFiles(root_dir):
+  """Create a list of all the *.debug and *.dwp files to be checked."""
+
+  file_list = []
+  tmp_list = [
+      os.path.join(dirpath, f)
+      for dirpath, _, files in os.walk(root_dir)
+      for f in fnmatch.filter(files, '*.debug')
+  ]
+  for f in tmp_list:
+    if 'build-id' not in f:
+      file_list.append(f)
+  tmp_list = [
+      os.path.join(dirpath, f)
+      for dirpath, _, files in os.walk(root_dir)
+      for f in fnmatch.filter(files, '*.dwp')
+  ]
+  file_list += tmp_list
+  return file_list
+
+
+def VerifyArgs(compiler, filename, tmp_dir, root_dir, options, parser):
+  """Verify that the option values and combinations are valid."""
+
+  if options.filename and options.all_files:
+    UsageError(parser, 'Cannot use both --file and --all_files.')
+  if options.filename and options.root_dir:
+    UsageError(parser, 'Cannot use both --file and --root_dir.')
+  if options.all_files and not options.root_dir:
+    UsageError(parser, 'Missing --root_dir option.')
+  if options.root_dir and not options.all_files:
+    UsageError(parser, 'Missing --all_files option.')
+  if not options.filename and not options.all_files:
+    UsageError(parser, 'Must specify either --file or --all_files.')
+
+  # Verify that the values specified are valid.
+  if filename:
+    if not os.path.exists(filename):
+      UsageError(parser, 'Cannot find %s' % filename)
+  compiler = options.compiler.lower()
+  if compiler not in COMPILERS:
+    UsageError(parser, '%s is not a valid compiler (gcc or clang).' % compiler)
+  if root_dir and not os.path.exists(root_dir):
+    UsageError(parser, '%s does not exist.' % root_dir)
+  if not os.path.exists(tmp_dir):
+    os.makedirs(tmp_dir)
+
+
+def CheckFile(filename, compiler, tmp_dir, options, cmd_executer):
+  """Verify the information in a single file."""
+
+  print('Checking %s' % filename)
+  # Verify that file contains debug information.
+  cmd = 'readelf -SW %s | grep debug_info' % filename
+  retval = cmd_executer.RunCommand(cmd, print_to_console=False)
+  if retval != 0:
+    print('No debug info in this file. Unable to verify compiler.')
+    # There's no debug info in this file, so skip it.
+    return ERR_NO_DEBUG_INFO
+
+  tmp_name = os.path.basename(filename) + '.dwarf'
+  dwarf_file = os.path.join(tmp_dir, tmp_name)
+  status = CreateTmpDwarfFile(filename, dwarf_file, cmd_executer)
+
+  if status != 0:
+    print('Unable to create dwarf file for %s (status: %d).' % (filename,
+                                                                status))
+    return status
+
+  comp_str = COMPILER_STRINGS[compiler]
+
+  retval = 0
+  with open(dwarf_file, 'r') as in_file:
+    lines = in_file.readlines()
+    looking_for_name = False
+    for line in lines:
+      if 'DW_AT_producer' in line:
+        looking_for_name = False
+        if 'GNU AS' in line:
+          continue
+        if comp_str not in line:
+          looking_for_name = True
+          retval = 1
+      elif looking_for_name:
+        if 'DW_AT_name' in line:
+          words = line.split(':')
+          bad_file = words[-1]
+          print('FAIL:  %s was not compiled with %s.' % (bad_file.rstrip(),
+                                                         compiler))
+          looking_for_name = False
+        elif 'DW_TAG_' in line:
+          looking_for_name = False
+
+  if not options.keep_file:
+    os.remove(dwarf_file)
+
+  return retval
+
+
+def Main(argv):
+
+  cmd_executer = command_executer.GetCommandExecuter()
+  parser = argparse.ArgumentParser()
+  parser.add_argument(
+      '--file', dest='filename', help='Name of file to be verified.')
+  parser.add_argument(
+      '--compiler',
+      dest='compiler',
+      required=True,
+      help='Desired compiler (gcc or clang)')
+  parser.add_argument(
+      '--tmp_dir',
+      dest='tmp_dir',
+      help='Directory in which to put dwarf dump file.'
+      ' Defaults to /tmp')
+  parser.add_argument(
+      '--keep_file',
+      dest='keep_file',
+      default=False,
+      action='store_true',
+      help='Do not delete dwarf file when done.')
+  parser.add_argument(
+      '--all_files',
+      dest='all_files',
+      default=False,
+      action='store_true',
+      help='Find and check ALL .debug/.dwp files '
+      'in subtree.  Must be used with --root_dir '
+      '(and NOT with --file).')
+  parser.add_argument(
+      '--root_dir',
+      dest='root_dir',
+      help='Root of subtree in which to look for '
+      'files.  Must be used with --all_files, and'
+      ' not with --file.')
+
+  options = parser.parse_args(argv)
+
+  compiler = options.compiler
+  filename = None
+  if options.filename:
+    filename = os.path.realpath(os.path.expanduser(options.filename))
+  tmp_dir = '/tmp'
+  if options.tmp_dir:
+    tmp_dir = os.path.realpath(os.path.expanduser(options.tmp_dir))
+  root_dir = None
+  if options.root_dir:
+    root_dir = os.path.realpath(os.path.expanduser(options.root_dir))
+
+  VerifyArgs(compiler, filename, tmp_dir, root_dir, options, parser)
+
+  file_list = []
+  if filename:
+    file_list.append(filename)
+  else:
+    file_list = FindAllFiles(root_dir)
+
+  bad_files = []
+  unknown_files = []
+  all_pass = True
+  for f in file_list:
+    result = CheckFile(f, compiler, tmp_dir, options, cmd_executer)
+    if result == ERR_NO_DEBUG_INFO:
+      unknown_files.append(f)
+      all_pass = False
+    elif result != 0:
+      bad_files.append(f)
+      all_pass = False
+
+  if all_pass:
+    print('\n\nSUCCESS:  All compilation units were compiled with %s.\n' %
+          compiler)
+    return 0
+  else:
+    if len(bad_files) == 0:
+      print(
+          '\n\n*Mostly* SUCCESS: All files that could be checked were compiled '
+          'with %s.' % compiler)
+      print(
+          '\n\nUnable to verify the following files (no debug info in them):\n')
+      for f in unknown_files:
+        print(f)
+    else:
+      print('\n\nFAILED:  The following files were not compiled with %s:\n' %
+            compiler)
+      for f in bad_files:
+        print(f)
+      if len(unknown_files) > 0:
+        print('\n\nUnable to verify the following files (no debug info in '
+              'them):\n')
+        for f in unknown_files:
+          print(f)
+    return 1
+
+
+if __name__ == '__main__':
+  sys.exit(Main(sys.argv[1:]))