Cxbx-Reloaded/src/CxbxDebugger

CxbxDebugger

CxbxDebugger is an experimental tool to aid debugging Xbox executables from within Cxbx.

The goal is to resolve XBE symbols using the function signatures identified by Cxbx-Reloaded.

This is a workaround for patching or creating PDB files at runtime for Cxbx-Reloaded (where the memory region is pre-allocated - see virtual_memory_placeholder). However, in future it may be viable to supporting loading symbols from matching PDB files.

Methods

The debugger is a standalone C# application which wraps the child instance of Cxbx-Reloaded used to launch the XBE file.

It uses the debugger API provided by Windows, primarily WaitForDebugEvent and ContinueDebugEvent. The C# implementation is taken from the VsChromium project.

Roadmap

Primary

• Create wrapper for the Cxbx-Reloaded child process
• Support new threads
• Support displaying of interrupts and exceptions
• Support resolving relevant XBE symbols from a callstack

Secondary

• Suspending threads and checking memory
• Breakpoints - inserting and handling interrupts

Thanks

• The Chromium Project for @VsChromium, specifically these Win32 sources

• Sebastian Solnica (@lowleveldesign) for Process Governor and MinDBG

• Alexander Bothe (@aBothe) for DDebugger