GDB currently sends a qTStatus even if the target previously replied
an empty packet to a previous qTStatus. If the target doesn't
recognize the packet, there's no point in trying again.
The machinery we have in place is packet_ok, which has the nice side
effect of forcing one to install a configuration command/knob for the
packet in question, which is often handy when you need to debug
things, and/or emulate a target that doesn't support the packet, or even,
it can be used as workaround for the old broken kgdb's that return error
to qTSTatus instead of an empty packet.
gdb/
2013-03-28 Pedro Alves <palves@redhat.com>
* NEWS (New options): New section.
(New options): Mention set/show remote trace-status-packet.
* remote.c (PACKET_qTStatus): New enumeration value.
(remote_get_trace_status): Skip sending qTStatus if the packet is
disabled. Use packet_ok.
(_initialize_remote): Register a configuration command for
qTStatus packet.
gdb/doc/
2013-03-28 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Remote Configuration) <set remote @var{name}-packet
table>: Add entry for "trace-status".
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| .. | ||
| a4rc.sed | ||
| agentexpr.texi | ||
| all-cfg.texi | ||
| annotate.texinfo | ||
| ChangeLog | ||
| fdl.texi | ||
| gdb.texinfo | ||
| gdbint.texinfo | ||
| gpl.texi | ||
| lpsrc.sed | ||
| LRS | ||
| Makefile.in | ||
| observer.texi | ||
| psrc.sed | ||
| refcard.tex | ||
| stabs.texinfo | ||
| stack_frame.eps | ||
| stack_frame.pdf | ||
| stack_frame.png | ||
| stack_frame.svg | ||
| stack_frame.txt | ||