Function wasmfs_before_preload

system/lib/wasmfs/wasmfs.cpp:37–37

// If the user does not implement this hook, do nothing.
__attribute__((weak)) extern "C" void wasmfs_before_preload(void) {}

// Set up global data structures and preload files.
WasmFS::WasmFS() : rootDirectory(initRootDirectory()), cwd(rootDirectory) {