WebAssembly for Cloud: A Basic Guide for Wasm-Based Cloud Apps

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022

S. M. JainWebAssembly for Cloudhttps://doi.org/10.1007/978-1-4842-7496-5_2

2. WebAssembly Module Internals: Sections and Memory Model

Shashank Mohan Jain¹  

(1)

Bangalore, India

 

This chapter explains what constitutes a WebAssembly module and shows you what its memory model looks like. It discusses how the different sections of the WebAssembly module are structured and the significance of each section.

Figure 2-1 shows the structure of a Wasm file.

Figure 2-1

Structure of a WebAssembly file

The WebAssembly header is an 8-byte filled with the magic number \0asm in ...