Just thinking further - is there any place/event handler in an openocd
board/target script that could output such a string in the knowledge that
openocd was fully initialized (including GDB/MI socket interface/server)?
I can't see anything obvious in the documentation or example scripts.
Thanks.
---
** [tickets:#147] How to know when OpenOCD is fully ready?**
**Status:** new
**Milestone:** 0.9.0
**Created:** Tue Mar 07, 2017 11:29 PM UTC by Tommy Murphy
**Last Updated:** Tue Mar 07, 2017 11:58 PM UTC
**Owner:** nobody
Hi there - I searched the existing tickets but didn't see any obvious mention
of this issue.
I cannot see any way to know that OpenOCD is fully initialized and ready to
accept connections - e.g. GDB/MI connections on port 3333 (by default). For
example the GNU ARM Eclipse plugins call OpenOCD with any user specified
command line options as well as -c 'echo "Started by GNU ARM Eclipse"' and then
waits for OpenOCD to output the string "Started by GNU ARM Eclipse" before
starting gdb which will then connect to OpenOCD's GDB/MI socket interface via
target remote ... etc. See
https://github.com/gnuarmeclipse/plug-ins/issues/186#issuecomment-284703073.
Liviu Ionescu (creator of GNU ARM Eclipse) chose this as the only way he could
see to attempt to synchronize OpenOCD with gdb so that gdb was only launched
when OpenOCD was ready. However there is still a race condition here as OpenOCD
processes the echo command before it has fully initialized the target
interface, opened/initialized the GDB/MI socket interface etc. In some cases
OpenOCD may be fuly ready for gdb by the time that gdb connects but if the
OpenOCD startup/init code takes "too long" then it may not and then gdb fails
to connect.
Is there any mechanism whereby a process can know that OpenOCD is "fully ready"
before starting another process such as gdb which will connect to it? Even if
OpenOCD output a simple string indicating that the relevant interface was
initialized and ready for connections would help (e.g. Ready for GDB/MI
connections on port 3333").
Any suggestions?
Thanks a lot.
---
Sent from sourceforge.net because [email protected] is
subscribed to https://sourceforge.net/p/openocd/tickets/
To unsubscribe from further messages, a project admin can change settings at
https://sourceforge.net/p/openocd/admin/tickets/options. Or, if this is a
mailing list, you can unsubscribe from the mailing list.
------------------------------------------------------------------------------
Announcing the Oxford Dictionaries API! The API offers world-renowned
dictionary content that is easy and intuitive to access. Sign up for an
account today to start using our lexical data to power your apps and
projects. Get started today and enter our developer competition.
http://sdm.link/oxford
_______________________________________________
OpenOCD-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/openocd-devel
