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