debugger

A (very) simple debugger built in C using ptrace(2).

Inspired by Eli Bendersky's article How debuggers work.

Usage

./bin/debugger [-b breakpoints] pathname [arguments]

• breakpoints must be a comma-separated list of addresses.
• arguments are the debugged program's command-line arguments (excluding the 0th argument).

Features

Dumps all register values at each breakpoint.

Internally, there's also support for reading from or even writing to process memory,
but the command-line interface doesn't support any of that yet.

Build

Build with make, or force a clean build with make clean all.

Examples/Tests

resources/helloworld contains a (very basic) helloworld program hand-written in assembler.

• ./run.sh builds and runs the debugger on that program, with some breakpoints set
• ./test.sh does the same, but tests a few more edge cases