109 lines
3.5 KiB
Python
Executable File
109 lines
3.5 KiB
Python
Executable File
#!/usr/bin/python3
|
|
# Dump the output of LD_TRACE_LOADED_OBJECTS in architecture neutral format.
|
|
# Copyright (C) 2022 Free Software Foundation, Inc.
|
|
# Copyright The GNU Toolchain Authors.
|
|
# This file is part of the GNU C Library.
|
|
#
|
|
# The GNU C Library is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU Lesser General Public
|
|
# License as published by the Free Software Foundation; either
|
|
# version 2.1 of the License, or (at your option) any later version.
|
|
#
|
|
# The GNU C Library is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
# Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public
|
|
# License along with the GNU C Library; if not, see
|
|
# <https://www.gnu.org/licenses/>.
|
|
|
|
import argparse
|
|
import os
|
|
import subprocess
|
|
import sys
|
|
|
|
try:
|
|
subprocess.run
|
|
except:
|
|
class _CompletedProcess:
|
|
def __init__(self, args, returncode, stdout=None, stderr=None):
|
|
self.args = args
|
|
self.returncode = returncode
|
|
self.stdout = stdout
|
|
self.stderr = stderr
|
|
|
|
def _run(*popenargs, input=None, timeout=None, check=False, **kwargs):
|
|
assert(timeout is None)
|
|
with subprocess.Popen(*popenargs, **kwargs) as process:
|
|
try:
|
|
stdout, stderr = process.communicate(input)
|
|
except:
|
|
process.kill()
|
|
process.wait()
|
|
raise
|
|
returncode = process.poll()
|
|
if check and returncode:
|
|
raise subprocess.CalledProcessError(returncode, popenargs)
|
|
return _CompletedProcess(popenargs, returncode, stdout, stderr)
|
|
|
|
subprocess.run = _run
|
|
|
|
def is_vdso(lib):
|
|
return lib.startswith('linux-gate') or lib.startswith('linux-vdso')
|
|
|
|
|
|
def parse_trace(cmd, fref):
|
|
new_env = os.environ.copy()
|
|
new_env['LD_TRACE_LOADED_OBJECTS'] = '1'
|
|
trace_out = subprocess.run(cmd, stdout=subprocess.PIPE, check=True,
|
|
universal_newlines=True, env=new_env).stdout
|
|
trace = []
|
|
for line in trace_out.splitlines():
|
|
line = line.strip()
|
|
if is_vdso(line):
|
|
continue
|
|
fields = line.split('=>' if '=>' in line else ' ')
|
|
lib = os.path.basename(fields[0].strip())
|
|
if lib.startswith('ld'):
|
|
lib = 'ld'
|
|
elif lib.startswith('libc'):
|
|
lib = 'libc'
|
|
found = 1 if fields[1].strip() != 'not found' else 0
|
|
trace += ['{} {}'.format(lib, found)]
|
|
trace = sorted(trace)
|
|
|
|
reference = sorted(line.replace('\n','') for line in fref.readlines())
|
|
|
|
ret = 0 if trace == reference else 1
|
|
if ret != 0:
|
|
for i in reference:
|
|
if i not in trace:
|
|
print("Only in {}: {}".format(fref.name, i))
|
|
for i in trace:
|
|
if i not in reference:
|
|
print("Only in trace: {}".format(i))
|
|
|
|
sys.exit(ret)
|
|
|
|
|
|
def get_parser():
|
|
parser = argparse.ArgumentParser(description=__doc__)
|
|
parser.add_argument('command',
|
|
help='comand to run')
|
|
parser.add_argument('reference',
|
|
help='reference file to compare')
|
|
return parser
|
|
|
|
|
|
def main(argv):
|
|
parser = get_parser()
|
|
opts = parser.parse_args(argv)
|
|
with open(opts.reference, 'r') as fref:
|
|
# Remove the initial 'env' command.
|
|
parse_trace(opts.command.split()[1:], fref)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main(sys.argv[1:])
|