Be sure to set the following in your .gdbinit as well:
set tcp auto-retry on
This will instruct GDB to retry a connection to the remote target if it is
not available.
On Tue, Mar 7, 2017 at 5:58 PM, RayeR <[email protected]> wrote:
> Would be good to know. I simply increased GDB timeout a bit in my
> gdbinit.cfg
> set remotetimeout 5
> to wait a while when OOCD is ready.
> ------------------------------
>
> * [tickets:#147] <https://sourceforge.net/p/openocd/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 11:29 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.
> ------------------------------
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