12.07.2023 05:13, Nicholas Piggin wrote:
On Tue Jul 11, 2023 at 6:59 PM AEST, Nicholas Piggin wrote:
The gdb remote protocol has a special interrupt character (0x03) that is
transmitted outside the regular packet processing, and represents a
Ctrl-C pressed in the client. Despite not being a regular packet, it
does expect a regular stop response if the stub successfully stops the
running program.
See: https://sourceware.org/gdb/onlinedocs/gdb/Interrupts.html
Inhibiting the stop reply packet can lead to gdb client hang. So permit
a stop response when receiving a character from gdb that stops the vm.
Additionally, add a warning if that was not a 0x03 character, because
the gdb session is likely to end up getting confused if this happens.
Cc: qemu-sta...@nongnu.org
Oh, I should note that this doesn't apply to any stable
branches I'm sorry. Will be more careful with the tag...
That's entirely Okay, since the Fixes: tag helps to determine if it fits
or not, and 758370052fb is v8.0.0-803-g758370052f. It's worse to miss
something important :)
Thank you!
/mjt
