blob: 22f709edef503e33b490a03aee486274a35b9679 [file] [log] [blame]
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "device/udev_linux/udev_loader.h"
#include "base/logging.h"
#include "device/udev_linux/udev0_loader.h"
#include "device/udev_linux/udev1_loader.h"
namespace device {
namespace {
UdevLoader* g_udev_loader = NULL;
} // namespace
// static
UdevLoader* UdevLoader::Get() {
if (g_udev_loader)
return g_udev_loader;
scoped_ptr<UdevLoader> udev_loader;
// This is an ugly hack to get around the fact that a MSAN build on Precise
// will only build an instrumented copy of libudev0 and not libudev1. If one
// runs the binary on Trusty, it will end up loading an uninstrumented
// libudev1 at run time. http://crbug.com/437464
// TODO(thestig): Remove this after upgrading our MSAN LKGR builders to
// Trusty.
#if !defined(MEMORY_SANITIZER)
udev_loader.reset(new Udev1Loader);
if (udev_loader->Init()) {
g_udev_loader = udev_loader.release();
return g_udev_loader;
}
#endif
udev_loader.reset(new Udev0Loader);
if (udev_loader->Init()) {
g_udev_loader = udev_loader.release();
return g_udev_loader;
}
CHECK(false);
return NULL;
}
UdevLoader::~UdevLoader() {
}
} // namespace device