May 2022
Intermediate to advanced
232 pages
3h 52m
English
Content preview from Practical WebAssembly
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Chapter 2: Understanding Emscripten
In this chapter, we will learn about Emscripten, which is a toolchain to convert C/C++ code into a WebAssembly module.
Emscripten consists of two components:
- Emscripten compiler frontend
- Emscripten SDK (emsdk)
The Clang compiler frontend compiles C/C++ code into LLVM intermediate representation (LLVM IR) and then uses the LLVM backend to convert the LLVM IR into native code. The Clang compiler is fast, uses little memory, and is compatible with GNU Compiler Collection (GCC). Emscripten is similar to Clang; the former produces a wasm binary while the latter produces a native binary. The Emscripten compiler frontend (emcc) is the compiler frontend that converts C/C++ into LLVM IR (both binary and human-readable ...
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