Am Do., 20. Mai 2021 um 19:18 Uhr schrieb Mathieu Desnoyers <mathieu.desnoy...@efficios.com>: > > > > ----- On May 20, 2021, at 12:51 PM, Norbert Lange nolang...@gmail.com wrote: > > > Am Do., 20. Mai 2021 um 18:25 Uhr schrieb Mathieu Desnoyers > > <mathieu.desnoy...@efficios.com>: > >> > >> ----- On May 20, 2021, at 11:54 AM, Norbert Lange nolang...@gmail.com > >> wrote: > >> [...] > >> > >> >> What prevents you from linking against lttng-ust.so again ? > >> > > >> > I did not poke around enough with Lttng to be confident it wont have > >> > side effects, > >> > I really don't want it active in production. It doesn't seem there is > >> > much public knowledge with Xenomai either. > >> > lttng-ust.so will spawn threads, lttng-ust-tracepoint.so is mostly > >> > passive, > >> > >> There is indeed a split between instrumentation and runtime threads done > >> with lttng-ust-tracepoint.so vs lttng-ust.so. > >> > >> I understand that this split is missing for tracelog and tracef, and > >> would be a good thing to have. > >> > >> I would be interested to move the tracelog and tracef implementation > >> from liblttng-ust.so to liblttng-ust-tracepoint.so, even this late > >> in the -rc cycle, because all users of tracelog/tracef need to link > >> against liblttng-ust-tracepoint.so anyway. So moving these symbols > >> should not affect anyone. > >> > >> Can you give it a try and let me know if it works for you ? > > > > Will take some time, whats the timeframe you need for feedback? > > Here is the tentative commit: > > https://review.lttng.org/c/lttng-ust/+/5927 Move tracef/tracelog symbols to > liblttng-ust-tracepoint.so >
Make a own thread for this? I testet this, but get errors as liblttng-ust-tracepoint.so depends on symbols from liblttng-ust.so. /usr/lib/gcc/x86_64-linux-gnu/10/../../../../x86_64-linux-gnu/bin/ld: /tmp/opt/hipase2/buildroot-acpu/host/x86_64-buildroot-linux-gnu/sysroot/lib/../lib64/liblttng-ust-tracepoint.so: undefined reference to `lttng_ust_probe_register' /usr/lib/gcc/x86_64-linux-gnu/10/../../../../x86_64-linux-gnu/bin/ld: /tmp/opt/hipase2/buildroot-acpu/host/x86_64-buildroot-linux-gnu/sysroot/lib/../lib64/liblttng-ust-tracepoint.so: undefined reference to `lttng_ust_probe_unregister' _______________________________________________ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
