Tom Tromey de7d7cb58e Initial implementation of Debugger Adapter Protocol ... The Debugger Adapter Protocol is a JSON-RPC protocol that IDEs can use to communicate with debuggers. You can find more information here: https://microsoft.github.io/debug-adapter-protocol/ Frequently this is implemented as a shim, but it seemed to me that GDB could implement it directly, via the Python API. This patch is the initial implementation. DAP is implemented as a new "interp". This is slightly weird, because it doesn't act like an ordinary interpreter -- for example it doesn't implement a command syntax, and doesn't use GDB's ordinary event loop. However, this seemed like the best approach overall. To run GDB in this mode, use: gdb -i=dap The DAP code will accept JSON-RPC messages on stdin and print responses to stdout. GDB redirects the inferior's stdout to a new pipe so that output can be encapsulated by the protocol. The Python code uses multiple threads to do its work. Separate threads are used for reading JSON from the client and for writing JSON to the client. All GDB work is done in the main thread. (The first implementation used asyncio, but this had some limitations, and so I rewrote it to use threads instead.) This is not a complete implementation of the protocol, but it does implement enough to demonstrate that the overall approach works. There is a rudimentary test suite. It uses a JSON parser written in pure Tcl. This parser is under the same license as Tcl itself, so I felt it was acceptable to simply import it into the tree. There is also a bit of documentation -- just documenting the new interpreter name.		2023-01-02 09:49:37 -07:00
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Makefile.in	Initial implementation of Debugger Adapter Protocol	2023-01-02 09:49:37 -07:00