WebAssembly in Action

Chapter 8. Dynamic linking: The implementation

This chapter covers

• Using dynamic linking in a single-page application
• Creating multiple instances of Emscripten’s JavaScript Module object, with each instance dynamically linked to a different WebAssembly side module
• Reducing the size of the WebAssembly main module by enabling dead code elimination

In chapter 7, you learned about the different approaches available for dynamically linking WebAssembly modules:

• dlopen, in which your C or C++ code manually links to a module, obtaining function pointers to the specific functions as they’re required
• dynamicLibraries, in which your JavaScript provides Emscripten with a list of modules to link to, and Emscripten automatically links to those modules ...