| #!/usr/bin/env python3 |
| # Copyright 2012 The Chromium Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Diagnose some common system configuration problems on Linux, and |
| suggest fixes.""" |
| |
| from __future__ import print_function |
| |
| import os |
| import subprocess |
| import sys |
| |
| all_checks = [] |
| |
| def Check(name): |
| """Decorator that defines a diagnostic check.""" |
| |
| def wrap(func): |
| all_checks.append((name, func)) |
| return func |
| |
| return wrap |
| |
| |
| @Check("/usr/bin/ld is not gold") |
| def CheckSystemLd(): |
| proc = subprocess.Popen(['/usr/bin/ld', '-v'], stdout=subprocess.PIPE) |
| stdout = proc.communicate()[0].decode('utf-8') |
| if 'GNU gold' in stdout: |
| return ("When /usr/bin/ld is gold, system updates can silently\n" |
| "corrupt your graphics drivers.\n" |
| "Try 'sudo apt-get remove binutils-gold'.\n") |
| return None |
| |
| |
| @Check("random lds are not in the $PATH") |
| def CheckPathLd(): |
| proc = subprocess.Popen(['which', '-a', 'ld'], stdout=subprocess.PIPE) |
| stdout = proc.communicate()[0].decode('utf-8') |
| instances = stdout.split() |
| if len(instances) > 1: |
| return ("You have multiple 'ld' binaries in your $PATH:\n" + |
| '\n'.join(' - ' + i for i in instances) + "\n" |
| "You should delete all of them but your system one.\n" |
| "gold is hooked into your build via depot tools.\n") |
| return None |
| |
| |
| @Check("/usr/bin/ld doesn't point to gold") |
| def CheckLocalGold(): |
| # Check /usr/bin/ld* symlinks. |
| for path in ('ld.bfd', 'ld'): |
| path = '/usr/bin/' + path |
| try: |
| target = os.readlink(path) |
| except OSError as e: |
| if e.errno == 2: |
| continue # No such file |
| if e.errno == 22: |
| continue # Not a symlink |
| raise |
| if '/usr/local/gold' in target: |
| return ("%s is a symlink into /usr/local/gold.\n" |
| "It's difficult to make a recommendation, because you\n" |
| "probably set this up yourself. But you should make\n" |
| "/usr/bin/ld be the standard linker, which you likely\n" |
| "renamed /usr/bin/ld.bfd or something like that.\n" % path) |
| |
| return None |
| |
| |
| @Check("random ninja binaries are not in the $PATH") |
| def CheckPathNinja(): |
| proc = subprocess.Popen(['which', 'ninja'], stdout=subprocess.PIPE) |
| stdout = proc.communicate()[0].decode('utf-8') |
| if not 'depot_tools' in stdout: |
| return ("The ninja binary in your path isn't from depot_tools:\n" + " " + |
| stdout + "Remove custom ninjas from your path so that the one\n" |
| "in depot_tools is used.\n") |
| return None |
| |
| |
| @Check("build dependencies are satisfied") |
| def CheckBuildDeps(): |
| script_path = os.path.join( |
| os.path.dirname(os.path.dirname(os.path.abspath(__file__))), 'build', |
| 'install-build-deps.sh') |
| proc = subprocess.Popen([script_path, '--quick-check'], |
| stdout=subprocess.PIPE) |
| stdout = proc.communicate()[0].decode('utf-8') |
| if 'WARNING' in stdout: |
| return ("Your build dependencies are out-of-date.\n" |
| "Run '" + script_path + "' to update.") |
| return None |
| |
| |
| def RunChecks(): |
| for name, check in all_checks: |
| sys.stdout.write("* Checking %s: " % name) |
| sys.stdout.flush() |
| error = check() |
| if not error: |
| print("ok") |
| else: |
| print("FAIL") |
| print(error) |
| |
| |
| if __name__ == '__main__': |
| RunChecks() |