lldb_script.py

import lldb
import os
import json


def format_variable(variable):
    data = variable.GetData()
    as_bytes = list(data.uint8)
    return {
        "name": variable.name,
        "address": variable.address_of.value,
        "size": variable.size,
        "data": as_bytes,
        "type": variable.GetType().GetName(),
        "value": variable.value,
    }


def format_variables(frame):
    variables = frame.GetVariables(True, True, True, True)
    return [format_variable(v) for v in variables]


def run(filename):
    debugger = lldb.SBDebugger.Create()
    debugger.SetAsync(False)
    target = debugger.CreateTarget(filename)
    target.BreakpointCreateByName("main")
    process = target.LaunchSimple(None, None, os.getcwd())

    while process.GetState() == lldb.eStateStopped:
        thread = process.GetSelectedThread()
        frame = thread.GetSelectedFrame()
        line_number = frame.GetLineEntry().GetLine()
        if line_number > 100000:
            break
        yield {
            "line_number": line_number,
            "variables": format_variables(frame),
        }
        thread.StepOver()

    process.Kill()


def main():
    filename = os.environ["BINARY_NAME"]
    lines = list(run(filename))
    print(json.dumps(lines))


main()