asan_device_setup script is using LD_PRELOAD to inject the ASan runtime library into the Zygote process. This breaks when the Zygote or any of its descendants spawn a process with different bitness due to the fact that the ASan-RT library name includes the target architecture. The fix is to preload the library through a symlink which has the same name in lib and lib64. llvm-svn: 286188