LC

Write a GDB Python Pretty-Printer

hard2/8

Use Conditional Breakpoints and Watchpoints in GDB Debug a Multithreaded Race Condition

Language

Compiler

2.0s Limit 256MB

Implementation

Write a C program that defines a linked list structure and prints documentation of how a GDB Python pretty-printer would display it.

Requirements:

Define a Node struct with data and next pointer
Create a linked list with multiple nodes in main()
Print the Python pretty-printer code as documentation
Explain gdb.Value, gdb.Type, and to_string()
Output must reference pretty-printers and linked lists

Why This Matters

The libstdc++ and Boost projects ship their own GDB pretty-printers built on this exact gdb.Value/to_string() API, which is why `print my_vector` shows readable contents instead of raw pointer internals when debugging real C++ codebases. LLDB has an equivalent Python scripting API, so this skill transfers directly to debugging on macOS and in LLVM-based toolchains.

Hints

0 / 3 revealed

Validation Suite

main.c

Workspace 1.0