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Update debugger docs
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‎README.md

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@@ -4,30 +4,25 @@ This is the repository for Binary Ninja Debugger. The debugger is written in C++
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## Platform and Target Support
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This is the current comparability matrix of the debugger. The horizontal lines stand for where we run BN and the vertical lines stand for the targets.
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| Target 🔽 Host ▶️ | macOS | Linux | Windows | Note |
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|-----------------------|--------------------|--------------------|--------------------|------|
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| macOS | Yes (Local/Remote) | Yes (Remote) | Yes (Remote) | |
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| Linux | Yes (Remote) | Yes (Local/Remote) | Yes (Remote) | |
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| Windows | Planned | Planned | Yes (Local/Remote) | |
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| GDB Server | Yes | Yes | Yes | (1) |
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| LLDB Server | Yes | Yes | Yes | |
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| Windows Kernel | TBD | TBD | Planned | |
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| DebugAdapter Protocol | Planned | Planned | Planned | |
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Explanation:
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- `Yes` means the feature is supported.
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- `Planned` means that we plan to implement it.
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- `TBD` means that we have not decided whether to support it, or how to support it.
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- `No` means it is not possible to do, at least for now.
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Notes:
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(1). Right now, we only support gdbserver with android remote debugging. Support for other gdbserver or gdb stub, e.g., qiling, VMWare, QEMU, will be added later.
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The progress is tracked in [this issue](https://github.com/Vector35/debugger/issues/122).
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This is the current comparability matrix of the debugger. The columns stand for where we run BN and the rows stand for the targets.
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| Target 🔽 Host ▶️ | macOS | Linux | Windows | Note |
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|--------------------------------------|---------------------------------------------------------|---------------------------------------------------------|---------------------------------------------------------|------|
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| macOS user | Yes (Local/Remote) | Yes (Remote) | Yes (Remote) | |
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| Linux user | Yes (Remote) | Yes (Local/Remote) | Yes (Remote) | |
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| Windows user | [#70](https://github.com/Vector35/debugger/issues/70) | [#70](https://github.com/Vector35/debugger/issues/70) | Yes (Local/Remote) | |
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| GDB Server | Yes | Yes | Yes | |
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| GDB RSP (QEMU/VMWare/Qiling/Android) | Yes | Yes | Yes | |
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| GDB Machine Interface | [#170](https://github.com/Vector35/debugger/issues/170) | [#170](https://github.com/Vector35/debugger/issues/170) | [#170](https://github.com/Vector35/debugger/issues/170) | |
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| LLDB Server | Yes | Yes | Yes | |
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| iOS/debugserver | Yes | Yes | Yes | |
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| Windows Kernel | No | No | Yes (Local/Remote) | |
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| Windows TTD (WinDbg) | No | No | Yes (Local) | |
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| Linux TTD (rr) | Yes (Remote) | Yes (Local/Remote) | Yes (Remote) | |
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| Windows Dump File | No | No | Yes (Local) | |
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| Corellium | Yes (Remote) | Yes (Remote) | Yes (Remote) | |
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The progress is also tracked in issue [#122](https://github.com/Vector35/debugger/issues/122).
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‎build.md

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# or git checkout commit_hash
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```
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- Download LLDB development build for your OS at https://github.com/Vector35/lldb-artifacts/releases - make sure that the correct LLDB version is downloaded (`grep 'LLVM_VERSION ' core/CMakeLists.txt` can help)
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- Download LLDB development build for your OS at https://github.com/Vector35/lldb-artifacts/releases/latest - make sure that the correct LLDB version is downloaded (`grep 'LLVM_VERSION ' core/CMakeLists.txt` can help)
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- Extract the zip archive to `~/libclang`
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- Download Qt development build for your OS at https://github.com/Vector35/qt-artifacts/releases.
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- Download Qt development build for your OS at https://github.com/Vector35/qt-artifacts/releases/latest.
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- Extract the zip archive to `~/Qt`
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- Build the debugger

‎core/debugger.cpp

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{
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Ref<Settings> settings = Settings::Instance();
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settings->RegisterGroup("debugger", "Debugger");
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/*
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Removed blockPython -- we can re-add it once this debugger is enabled by
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default
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Leaving this function for migration of the settings popup.
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*/
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settings->RegisterSetting("debugger.stopAtSystemEntryPoint",
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R"({
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"title" : "Stop At System Entry Point",
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})");
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settings->RegisterSetting("debugger.tryUnloadWrongDbgEngDLL",
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R"({
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"title" : "Attempt to unload the DLL with wrong path",
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"title" : "Attempt to unload the DbgEng DLLs from wrong path",
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"type" : "boolean",
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"default" : false,
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"description" : "Attempt to unload the already loaded DLL if they are from a wrong path. You may turn this on if the DbgEng DLLs, e.g., dbghelp.dll, is loaded from a wrong path, but it happens early than the debugger initialization",
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"title" : "Stack Variable Annotations",
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"type" : "boolean",
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"default" : false,
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"description" : "Add stack variable annotations",
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"description" : "Annotate stack variables in linear view",
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"ignore" : ["SettingsProjectScope", "SettingsResourceScope"]
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})");
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‎docs/guide/corellium-remote-debugging.md

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# Corellium Remote Debugging
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[Corellium](https://www.corellium.com/) is a leading solution for virtual devices. It exposes a hypervisor-level
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debugger that enables the debugging of the entire device. Binary Ninja debugger has a dedicated debug adapter to
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connect to it. Below is a guide to set it up.
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## Preparation
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- Create a virtual device following the Corellium documentation
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- In the "Connect" page, download the OpenVPN configuration file and connect to the [VPN](https://support.corellium.com/features/connect/vpn)
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- In the "Connect" page, find the gdb connection string, e.g., `lldb --one-line "gdb-remote 10.11.1.4:4000"`. Take
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note of the IP address and port
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- Download and install the [Debug Accelerator](https://support.corellium.com/features/connect/debug-accelerator)
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- Run `/path/to/debug_accelerator 10.11.1.1:4000 127.0.0.1:4000`, where the first address is the remote ip:port to
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connect to, and the second one is a local ip:port to listen on
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## Connect to the Debugger from Binary NInja
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- In Menu, click "File" -> "Create New Mapped Data"
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- In the dialog that pops up, select an architecture that matches your target, which should be `aarch64`
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- In Menu, click "Debugger" -> "Connect to Remote Process..."
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- In the "Debug Adapter Settings" dialog, Select the `Corellium` adapter
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- Type in the local ip:port that the debug accelerator is operating on, e.g., `127.0.0.1:4000`
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- Click "Accept"
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Note, the above guide is for the cloud version of Corellium. If you have a
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[Desktop Appliance](https://support.corellium.com/environments/desktop-appliance), then you can skip the VPN connection
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and the debug accelerator -- the local connection is often times faster without it.
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‎docs/guide/dbgeng-ttd.md

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# Time Travel Debugging
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# Time Travel Debugging (Windows)
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Time travel debugging (TTD) allows you to record an execution trace of a program or system and replay it back and forth.
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It can speed up the process of reverse engineering/vulnerability research, and deal with certain tasks that are not easy to handle in regular forward debugging.
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Several tools implement TTD. As of now, Binary Ninja debugger integrates with the WinDbg/DbgEng TTD so that you can replay and analyze a trace recorded by WinDbg.
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Several tools implement TTD. On Windows, Binary Ninja debugger integrates with the WinDbg/DbgEng TTD so that you can replay and analyze a trace recorded by WinDbg.
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The combination of TTD and your familiar reverse engineer tool would hopefully supercharge the ability to time travel and make your workflow even more effective.
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Below is a guide to set it up.
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### Record a TTD Trace in Binary Ninja
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- Make sure you have WinDbg property installed and configured
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- Open the file you wish to trace in Binary Ninja (optional)
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- Click Menu -> "Debugger" -> "Record TTD Trace"
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- <img src="../../img/debugger/ttd_record.png" width="600px">
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<img src="../../img/debugger/ttd_record.png" width="600px">
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- In the "TTD Record" dialog, configure the recording as you wish:
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- Executable Path: the path of the executable to trace
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- Working Directory: the working directory to launch the executable in
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- Open the .exe or .dll file in Binary Ninja
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- Click `Debugger` -> `Debug Adapter Settings`
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- For `Adapter Type`, select `DBGENG_TTD`
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- For `Executable Path`, select the trace file recorded in the previous step
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- Select `DBGENG_TTD` as the debug adapter
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- For `Trace Path`, select the trace file recorded in the previous step
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- E.g., `C:/Users/xushe/Documents/helloworld01.run`
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- Click `Accept`
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- t-: step into back
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- g-u: step out back
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- The [!position](https://learn.microsoft.com/en-us/windows-hardware/drivers/debugger/time-travel-debugging-extension-positions) command prints the `position` of all active threads
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- The [!tt](https://learn.microsoft.com/en-us/windows-hardware/drivers/debugger/time-travel-debugging-extension-tt) command navigates to a `position` in the trace
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- The [!tt navigation](https://learn.microsoft.com/en-us/windows-hardware/drivers/debugger/time-travel-debugging-extension-tt) command navigates to a `position` in the trace
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- E.g., `!tt 1A0:12F`
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- While using the debugger, when the target stops, the current position will be printed in the debugger console
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- The new [!tt breakpoint](https://learn.microsoft.com/en-us/windows-hardware/drivers/debuggercmds/time-travel-debugging-extension-tt#tt-break-commands) now supports breaking the target when a memory is read/written/executed, a register value is changed, or a module has been loaded, both in forward and backward direction. This is very powerful and worth checking out!
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## Feedback and Suggestions

‎docs/guide/gdbrsp-ttd.md

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# Time Travel Debugging (Linux)
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Time travel debugging (TTD) allows you to record an execution trace of a program or system and replay it back and forth.
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It can speed up the process of reverse engineering/vulnerability research, and deal with certain tasks that are not easy to handle in regular forward debugging.
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Several tools implement TTD. On Linux, Binary Ninja debugger has a GDB RSP adapter which can be used to replay/debug the
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trace produced by [rr](https://rr-project.org/).
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The combination of TTD and your familiar reverse engineer tool would hopefully supercharge the ability to time travel
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and make your workflow even more effective.
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Below is a guide to set it up.
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## Install rr
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- Download and install the latest release from https://github.com/rr-debugger/rr/releases
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## Record an rr Trace
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- Record a trace with `rr your_program arg1 arg2`
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- This saves the trace into the default directory (`$HOME/.local/share/rr`). To specify a custom directory,
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use `-o target_dir`
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- For more options during the record, check out `rr record -h`
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## Replay an rr Trace
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- Run `rr replay -h 0.0.0.0 -s 31337`
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- This will instruct rr to spawn a GDB stub and listen on port 31337 of all interfaces
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- It will replay the last recorded trace. To replay a different trace, specify the trace directory on the command line
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- For more options during the replay, check out `rr replay -h`
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## Connect to the gdb stub in Binary Ninja
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- Open the binary file in Binary Ninja (optional)
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- Click Menu -> "Debugger" -> "Connect To Remote Process", the `Debug Adapter Settings` will popup
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- Select `GDB RSP` as the debug adapter
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- Type in the `IP Address` and `Port` in the previous step
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- Click `Accept`
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<img src="../../img/debugger/gdbrsp_ttd.png" width="600px">
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## Debug the rr Trace
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- Once connected, the debugger should be paused within the loader (ld)
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- Now resume the target once, and the target should be paused at the program entry point
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- Most of the debugger functionalities should work in the very same way as a forward debugging
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- The control buttons in the debugger sidebar widget shows four new buttons for reverse debugging on the right side:
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- <img src="../../img/debugger/ttd_buttons.png" width="600px">
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- These new buttons are in red color and flipped
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- You can hover over the button to see what they do and the keybindings for them

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