gdbghidra - a visual bridge between a GDB session and GHIDRA
The purpose of gdbghidra is to provide means during interactive debug sessions in gdb to quickly follow the flow in GHIDRA; similar to our gdbida plugin for IDA Pro. gdbghidra is not meant to be a full debugger. Instead, it merely serves as a small helper tool to assist during interactive debug sessions that make use of a mixture of tools. It provides simple means to quickly follow along a gdb debug session in GHIDRA. Also it does not need any dependencies on the Python side.
gdbghidra consists of the following two parts:
- data/gdb_ghidra_bridge_client.py : gdb python script
- Sync/colorize cursor inside GHIDRA to PC of GDB session
- Sync stack to GHIDRA on GDB break
- Automatically set register values within GHIDRA for better decompilation
- GHIDRA register window
- Set/Toggle/Delete breakpoints from GHIDRA
- Automatic relocation
Make a change the ~/.gdbinit configuration file to include the plugin:
To install the plugin in GHIDRA follow these steps:
- Open GHIDRA and select
- Press the green
+button and select
- Make sure the Plugin has a tick in the box left.
- Start GHIDRA CodeBrowser.
File/Configureand press the adapter icon in above left oft 'Ghidra Core'.
- Filter for
gdband make sure
Now you should see the
GDBGhidraPlugin window. You can now configure the listener port using the
configuration button and start the server using the
Next, configure the gdb stub to connect to gdbghidras's port (either command line or gdbinit):
To build this plugin using gradle run the following command inside gdbghidra directory
This produces a fresh extension zip within the
If you want to build gdbghidra from source using GHIDRA's eclipse environment make sure to add
json-simple-1.1.1.jar to the classpath as follows:
- Click the
RunMenu and select
- Navigate to
- Navigate down the list to
User Entries, select
User Entriesand click on
Between GHIDRA and GDB a simple JSON message format is spoken which could also be used to connect other tools/debuggers to this GHIDRA plugin.
Please be aware that this is not considered to be finished. Specifically, the following thoughts are on my mind:
- Network listening input masks untested for errors.
- The network connection is not authenticated in any way.
- A lot of potential for additional commands. For now, I kept it super simple.