@aparrish do you already know about https://sourceware.org/gdb/current/onlinedocs/gdb.html/Remote-Protocol.html ? it's been around a long time and you can find implementations of "gdbstubs" in all sorts of weird contexts
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@astrid @aparrish in fact this relatively short page I just found seems to be guidance on writing a simple gdbstub implementation intended specifically for emulators, so we're apparently not the only people who thought that might be a good idea 😁 https://www.retroreversing.com/tutorials/gdb-stub-in-c
