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* [Bug gdb/27439] New: Detection of a running target/process
@ 2021-02-19 9:51 anders at janssonsoftware dot se
2021-02-21 16:13 ` [Bug gdb/27439] " simark at simark dot ca
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: anders at janssonsoftware dot se @ 2021-02-19 9:51 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=27439
Bug ID: 27439
Summary: Detection of a running target/process
Product: gdb
Version: 8.3
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gdb
Assignee: unassigned at sourceware dot org
Reporter: anders at janssonsoftware dot se
Target Milestone: ---
Perhaps more of a question (sorry if on the wrong list!).
As i understand it the RSP-protocol has the "stop reply" packets used by an
RSP-stub/GDB-server to inform GDB-client that my debug target has stopped. But
i cant find any information if its possible for an RSP-stub/GDB-server to
inform the GDB-client if my debug target starts to execute by some external
event not controlled by the GDB-client itself.
For example:
* During a GDB session (target halted) i repower/reset an development board and
the process starts to execute. Can GDB be notified about this?
* In a heterogeneous multi-core scenario where the starting/stopping of the
cores are controlled by ARM cortex-M Cross Triggering. Different cores are
controlled by multiple GDB-sessions. Perhaps the same issue as above. One
GDB-session needs to get notified that the debug target started to execute.
Anyone know if there exists some RSP support for this. Some sort of "Running
reply"?
Best Regards
Anders Jansson
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* [Bug gdb/27439] Detection of a running target/process
2021-02-19 9:51 [Bug gdb/27439] New: Detection of a running target/process anders at janssonsoftware dot se
@ 2021-02-21 16:13 ` simark at simark dot ca
2021-02-23 19:13 ` tromey at sourceware dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: simark at simark dot ca @ 2021-02-21 16:13 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=27439
Simon Marchi <simark at simark dot ca> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |simark at simark dot ca
--- Comment #1 from Simon Marchi <simark at simark dot ca> ---
Off the top of my head, I don't think that kind of thing is supported right
now.
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* [Bug gdb/27439] Detection of a running target/process
2021-02-19 9:51 [Bug gdb/27439] New: Detection of a running target/process anders at janssonsoftware dot se
2021-02-21 16:13 ` [Bug gdb/27439] " simark at simark dot ca
@ 2021-02-23 19:13 ` tromey at sourceware dot org
2021-02-24 7:36 ` anders at janssonsoftware dot se
2021-02-24 14:06 ` clyon at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: tromey at sourceware dot org @ 2021-02-23 19:13 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=27439
Tom Tromey <tromey at sourceware dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |tromey at sourceware dot org
--- Comment #2 from Tom Tromey <tromey at sourceware dot org> ---
FWIW I imagine this would require some work on the gdb side as well.
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* [Bug gdb/27439] Detection of a running target/process
2021-02-19 9:51 [Bug gdb/27439] New: Detection of a running target/process anders at janssonsoftware dot se
2021-02-21 16:13 ` [Bug gdb/27439] " simark at simark dot ca
2021-02-23 19:13 ` tromey at sourceware dot org
@ 2021-02-24 7:36 ` anders at janssonsoftware dot se
2021-02-24 14:06 ` clyon at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: anders at janssonsoftware dot se @ 2021-02-24 7:36 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=27439
--- Comment #3 from Anders Jansson <anders at janssonsoftware dot se> ---
Thanks for the replies. At least not an obvious solution to this it seems.
Yes i guess it would require some work on the gdb side if additional RSP
commands should be handled. For my use cases (at least as a starting point) i
think it would be sufficient with a "polling" solution perhaps not requiring
any extra RSP. If it was possible to issue a gdb command and make it reevaluate
the target status. Then different MI frontends (Eclipse etc) could issue some
sort of "refresh"-command periodically so the IDEs always presents the correct
state.
1. GDB show target/core is in halted state.
2. Issue "refresh" command.
3. If target/core is running gdb is moved to running state (and sends the
"running MI records"). Otherwise it do nothing.
Will do some experimenting. Only need to get into the GDB code first :)
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* [Bug gdb/27439] Detection of a running target/process
2021-02-19 9:51 [Bug gdb/27439] New: Detection of a running target/process anders at janssonsoftware dot se
` (2 preceding siblings ...)
2021-02-24 7:36 ` anders at janssonsoftware dot se
@ 2021-02-24 14:06 ` clyon at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: clyon at gcc dot gnu.org @ 2021-02-24 14:06 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=27439
Christophe Lyon <clyon at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |clyon at gcc dot gnu.org
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2021-02-19 9:51 [Bug gdb/27439] New: Detection of a running target/process anders at janssonsoftware dot se
2021-02-21 16:13 ` [Bug gdb/27439] " simark at simark dot ca
2021-02-23 19:13 ` tromey at sourceware dot org
2021-02-24 7:36 ` anders at janssonsoftware dot se
2021-02-24 14:06 ` clyon at gcc dot gnu.org
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