234 lines
6.8 KiB
Python
Executable file
234 lines
6.8 KiB
Python
Executable file
#!/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, cmd_executer):
|
|
"""Create a list of all the *.debug and *.dwp files to be checked."""
|
|
|
|
file_list = []
|
|
tmp_list = [
|
|
os.path.join(dirpath, f)
|
|
for dirpath, dirnames, 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, dirnames, 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, cmd_executer)
|
|
|
|
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:]))
|