[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_28":-5,"_38":-5,"_39":40,"_41":42,"_43":44,"_45":46,"_47":48,"_49":50,"_51":52,"_53":54,"_55":56,"_57":58},"routes/_store+/_readers+/email_author.$slug/route",{"_9":10,"_11":-5},"book",{"_12":13,"_14":15,"_16":17,"_18":19,"_20":21,"_22":23},"currentUser","id","Z2lkOi8vbGVhbnB1Yi9TdG9yZTo6Qm9va1Byb2R1Y3QvODEyMjA","title","Inside the Debugger: Building a Source-Level Debugger in Rust","state","published","contactAuthorMethod","email","aboutText","

A debugger is not magic. It is a careful orchestration of operating system primitives, CPU features, and compiler-generated metadata that together let you pause a running program, inspect its state, and control its execution one instruction at a time. This book teaches you how to build a fully functional source-level debugger from scratch in Rust. Starting from the fundamentals of processes, virtual memory, and executable formats, we progressively implement every feature a real debugger needs: process attachment, software and hardware breakpoints, single stepping, register inspection, memory read and write, symbol resolution, stack unwinding, call frame inspection, DWARF debug information parsing, source-level debugging, expression evaluation, watchpoints, multithreaded debugging, shared library support, signal handling, and remote debugging concepts. Every concept is accompanied by complete, production-quality Rust code that builds upon previous chapters into a cohesive debugger. By the end of this book, you will have built a capable debugger entirely in Rust and gained deep insight into how programs execute, how operating systems manage processes, and how compilers encode the information needed to map machine code back to source code.

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Kick off your book project, get started with GhostAI, get better at marketing, or spend the day doing all three! Free live workshops on Zoom. Saturday, June 27, 2026.

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