On 14.04.21 15:20, Peter Eisentraut wrote:
> On 12.04.21 07:46, Craig Ringer wrote:
>> > To use systemtap semaphores (the _ENABLED macros) you need to run
>> dtrace
>> > -g to generate a probes.o then link that into postgres.
>> >
>> > I don't think we do that. I'll double check soon.
>>
>> We do that. (It's -G.)
>>
>>
>> Huh. I could've sworn we didn't. My mistake, it's there in
>> src/backend/Makefile .
>>
>> In that case I'll amend the patch to use semaphore guards.
>
> This whole thread is now obviously moved to consideration for PG15, but
> I did add an open item about this particular issue
> (https://wiki.postgresql.org/wiki/PostgreSQL_14_Open_Items, search for
> "dtrace"). So if you could produce a separate patch that adds the
> _ENABLED guards targeting PG14 (and PG13), that would be helpful.
Here is a proposed patch for this.