1

我正在尝试使用来自 Sixense 的专有 sdk(游戏控制器的驱动程序)。看起来它们静态链接到 boost::thread。我的应用程序和它的一些依赖项也使用了 boost::thread,我得到了一个段错误。

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7bd1bb5 in boost::thread::start_thread() () from /usr/lib/libboost_thread.so.1.42.0
(gdb) bt
#0  0x00007ffff7bd1bb5 in boost::thread::start_thread() () from /usr/lib/libboost_thread.so.1.42.0
#1  0x00007ffff79869bb in USBDetector::start_hotplug_thread() ()
   from /home/joschu/Downloads/sixenseSDK_linux_OSX/samples/linux_x64/sixense_simple3d/libsixense_x64.so
#2  0x00007ffff7986c7e in USBDetector::start(std::vector<unsigned int, std::allocator<unsigned int> >, std::vector<std::vector<unsigned int, std::allocator<unsigned int> >, std::allocator<std::vector<unsigned int, std::allocator<unsigned int> > > >, std::vector<unsigned int, std::allocator<unsigned int> >) () from /home/joschu/Downloads/sixenseSDK_linux_OSX/samples/linux_x64/sixense_simple3d/libsixense_x64.so
#3  0x00007ffff7987298 in USBManagerLinux::start(std::vector<unsigned int, std::allocator<unsigned int> >, std::vector<std::vector<unsigned int, std::allocator<unsigned int> >, std::allocator<std::vector<unsigned int, std::allocator<unsigned int> > > >, std::vector<unsigned int, std::allocator<unsigned int> >, int) () from /home/joschu/Downloads/sixenseSDK_linux_OSX/samples/linux_x64/sixense_simple3d/libsixense_x64.so
#4  0x00007ffff79842f3 in USBManager::start(std::vector<unsigned int, std::allocator<unsigned int> >, std::vector<std::vector<unsigned int, std::allocator<unsigned int> >, std::allocator<std::vector<unsigned int, std::allocator<unsigned int> > > >, std::vector<unsigned int, std::allocator<unsigned int> >, int) () from /home/joschu/Downloads/sixenseSDK_linux_OSX/samples/linux_x64/sixense_simple3d/libsixense_x64.so
#5  0x00007ffff79a03d6 in DriverMain::start(int) ()
   from /home/joschu/Downloads/sixenseSDK_linux_OSX/samples/linux_x64/sixense_simple3d/libsixense_x64.so
#6  0x00007ffff79a1e32 in sixenseInit ()
   from /home/joschu/Downloads/sixenseSDK_linux_OSX/samples/linux_x64/sixense_simple3d/libsixense_x64.so
#7  0x0000000000400d0d in main () at /home/joschu/bulletsim/src/hydra/hi.cpp:6

如果我切换项目链接的方式,我发现我的其他库最终调用了 Sixense 的 boost::thread。

有没有办法解决这个问题?

4

1 回答 1

2

看起来它们静态链接到 boost::thread

你没有说他们静态链接boost::thread到什么。我假设他们将其链接到libsixense_x64.so.

有几种避免名称冲突的通用方法:

  1. 要求 sdk 开发人员清理他们的行为。他们应该做的是静态链接提升并隐藏该事实,例如通过使用 -fvisibility=hidden 进行编译,并且只导出他们想要的接口,而不是导出所有内容(这听起来就是他们所做的)。
  2. 如果不能强制 sdk 开发者清理,可以通过dlopenwith RTLD_LOCALbinding 加载他们的 sdk 库。这使得使用 sdk 有点尴尬,但应该将其符号保留在全局动态链接器命名空间中。
  3. 最后,为了完整性:如果您在 Linux 上(您的消息建议但未说明),您可以使用dlmopen将 sdk 加载到完全独立的动态链接器命名空间中。与选项 2 相比,我没有看到任何优势,并且有几个缺点。
于 2012-04-14T22:55:49.410 回答