gdb_6_5-20060621-release
The GDB version available on the devel qemu machines is GDB version
6.5.15.fc6rh Red Hat Linux gdb configured as i386-redhat-linux-gnu. Unfortunately, this is such an old version that there is no online documentation available anymore (as far as I could tell).
Personally, I'm less motivated to RTDC if I know I have the wrong version of the docs. ("Does X still work? Why is flag Y behaving weirdly? None of this behavior was documented!!!")
So, here is the freshly-generated official GDB documentation for version
gdb_6_5-20060621-release(it was the closest version I could find), generated from the official sources. Link below: https://oldgdbdocs.web.illinois.edu/
The web documentation is available here: see bottom of webpage
The PDF version is available here: see bottom of webpage
I hope this website saves some of you from headaches caused by reading differently-versioned documentation!