Patrick Matthäi <[email protected]> 于2022年5月5日周四 19:54写道：
> Hello mips(el) porters, > (please CC us, we are not subscribed). > > We are trying to build fastnetmon on mipsel, without success. Maybe you > can help us on fixing this?: > > /usr/bin/c++ -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. > -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time > -D_FORTIFY_SOURCE=2 -Wl,-z,relro -Wl,-z,now -rdynamic > CMakeFiles/fastnetmon.dir/fastnetmon.cpp.o -o fastnetmon -latomic > libgraphite_metrics.a libinfluxdb_metrics.a -lgpr -lgrpc++ -lgrpc > libfastnetmon_grpc_pb_cc.a libfastnetmon_pb_cc.a -lprotobuf -lhiredis > -lmongoc-1.0 -lbson-1.0 -llog4cpp -lpthread libpatricia.a > libfastnetmon_pcap_format.a libipfix_rfc.a libfast_library.a > libunified_parser.a -lssl -lcrypto libgobgp_action.a libexabgp_action.a > libafpacket_plugin.a libsflow_plugin.a libnetflow_plugin.a libpcap_plugin.a > libexample_plugin.a libfastnetmon_logic.a > /usr/lib/mipsel-linux-gnu/libboost_thread.so.1.74.0 > /usr/lib/mipsel-linux-gnu/libboost_atomic.so.1.74.0 -lpthread > /usr/lib/mipsel-linux-gnu/libboost_regex.so.1.74.0 > /usr/lib/mipsel-linux-gnu/libboost_program_options.so.1.74.0 > /usr/lib/mipsel-linux-gnu/libboost_system.so.1.74.0 libpatricia.a > libfastnetmon_pcap_format.a libsimple_packet_capnp.a -lcapnp -lkj -ljson-c > -lssl -lcrypto -lgpr -lgrpc++ -lgrpc -lprotobuf libgobgp_api_client_pb_cc.a > libgobgp_api_client_grpc_pb_cc.a libattribute_pb_cc.a libunified_parser.a > libfastnetmon_packet_parser.a libsimple_packet_parser_ng.a > libnetwork_data_structures.a liblibsflow.a libipfix_rfc.a libnetflow.a -lpcap > -lhiredis -lmongoc-1.0 -lbson-1.0 libexabgp_action.a libbgp_protocol.a > > In this command, libfastnetmon_logic.a is put after -latomic, while libfastnetmon_logic.a(fastnetmon_logic.cpp.o) uses symbols from libatomic. Due to the limitation of gnu ld, -latomic should be put after libfastnetmon_logic.a. /usr/bin/ld: libfastnetmon_logic.a(fastnetmon_logic.cpp.o): undefined reference to symbol '__atomic_fetch_add_8@@LIBATOMIC_1.0' > /usr/bin/ld: /usr/lib/gcc/mipsel-linux-gnu/11/libatomic.so: error adding > symbols: DSO missing from command line > > > > -------- Weitergeleitete Nachricht -------- > Betreff: Re: GoBGP and FastNetMon on Debian > Datum: Thu, 5 May 2022 11:33:33 +0100 > Von: Pavel Odintsov <[email protected]> <[email protected]> > An: Patrick Matthäi <[email protected]> <[email protected]> > > Hello! > > That's extremely strange indeed. > > Cmake claims that library is here: > > -- Performing Test HAVE__ATOMIC_ADD_FETCH - Failed > -- We have no __atomic_add_fetch, will try linking with libatomic > -- Looking for __atomic_add_fetch_8 in atomic > -- Looking for __atomic_add_fetch_8 in atomic - found > -- Linked with atomic library > -- Performing Test HAVE__SYNC_FETCH_AND_ADD > -- Performing Test HAVE__SYNC_FETCH_AND_ADD - Failed > -- We have no __sync_fetch_and_add on this platform, will try linking with > libatomic > -- Looking for __sync_fetch_and_add_8 in atomic > -- Looking for __sync_fetch_and_add_8 in atomic - not found > -- We have no support for __sync_fetch_and_add in atomic library, skip linking > > Do you have ssh access to any machine with this such architecture? > > On Thu, 5 May 2022 at 10:37, Patrick Matthäi <[email protected]> > wrote: > >> Hey, >> >> hmpf, I hate mipsel.. >> >> https://buildd.debian.org/status/fetch.php?pkg=fastnetmon&arch=mipsel&ver=1.2.0%2Bgit20220505-1&stamp=1651743326&raw=0 >> >> >> Am 05.05.2022 um 02:14 schrieb Pavel Odintsov: >> >> Good morning! >> >> I hope you liked your movie yesterday. >> >> I did my side of task and resurrected logic which uses __atomic_add_fetch >> instead of __sync_fetch_and_add: >> https://github.com/pavel-odintsov/fastnetmon/commit/dad1c7b0b9fe16d24566649aa92d757050f4ec2a >> >> >> Good news that we have it in place for Debian build for multiple >> platforms we had issues previously: >> https://salsa.debian.org/debian/fastnetmon/-/blob/master/debian/rules#L11 >> >> Please keep me updated about mipsel builds. >> >> We have some work to get rid of atomic increments and replace them by >> locks and I hope we will drop this magic in coming releases. >> >> >> On Wed, 4 May 2022 at 18:54, Pavel Odintsov <[email protected]> >> wrote: >> >>> Hello! >>> >>> Excellent! >>> >>> Have a great evening! >>> >>> On Wed, 4 May 2022 at 18:54, Patrick Matthäi <[email protected]> >>> wrote: >>> >>>> Yes i will try tomorrow, now i Went to the Cinema :) >>>> >>>> Am 04.05.2022 19:45 schrieb Pavel Odintsov <[email protected]>: >>>> >>>> Hello! >>>> >>>> It may be really fun but I even had fix for it back in time: >>>> https://github.com/pavel-odintsov/fastnetmon/commit/d5711bb3da43bff3f90a33c5d5ab9b5a262660c5 >>>> >>>> >>>> I think it was removed during one of many code refactorings from >>>> previous years. >>>> >>>> I'll return this logic back shortly. >>>> >>>> Is it possible to set flag cmake .. -DUSE_NEW_ATOMIC_BUILTINS=ON only >>>> for mipsel targets? I'm not 100% sure about this patch to enable it for all >>>> platforms. >>>> >>>> Thank you! >>>> >>>> On Wed, 4 May 2022 at 18:41, Pavel Odintsov <[email protected]> >>>> wrote: >>>> >>>> Hello! >>>> >>>> Oh, sad stuff indeed. >>>> >>>> -- Will use new memory model aware atomic builtins >>>> -- Performing Test HAVE__ATOMIC_ADD_FETCH >>>> -- Performing Test HAVE__ATOMIC_ADD_FETCH - Failed >>>> -- We have no __atomic_add_fetch, will try linking with libatomic >>>> -- Looking for __atomic_add_fetch_8 in atomic >>>> -- Looking for __atomic_add_fetch_8 in atomic - found >>>> -- Linked with atomic library >>>> -- Performing Test HAVE__SYNC_FETCH_AND_ADD >>>> -- Performing Test HAVE__SYNC_FETCH_AND_ADD - Failed >>>> -- We have no __sync_fetch_and_add on this platform, will try linking >>>> with libatomic >>>> -- Looking for __sync_fetch_and_add_8 in atomic >>>> -- Looking for __sync_fetch_and_add_8 in atomic - not found >>>> -- We have no support for __sync_fetch_and_add in atomic library, skip >>>> linking >>>> >>>> We actually linked with libatomic for __atomic_add_fetch but it looks >>>> like __sync_fetch_and_add_8 is missing from libatomic. >>>> >>>> But I found something in Debian's bug tracker: >>>> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=869805 which is >>>> quite insightful about this exact issue. >>>> >>>> On Wed, 4 May 2022 at 18:17, Patrick Matthäi <[email protected]> >>>> wrote: >>>> >>>> >>>> https://buildd.debian.org/status/fetch.php?pkg=fastnetmon&arch=mipsel&ver=1.2.0%2Bgit20220504-1&stamp=1651682939&raw=0 >>>> >>>> Does not work :/ But I see the -latomic humpf.. >>>> Am 04.05.2022 um 14:49 schrieb Pavel Odintsov: >>>> >>>> Hello! >>>> >>>> Thank you for feedback. >>>> >>>> I added some logic to fix it or at least confirm root cause of this >>>> issue with atomic: >>>> >>>> https://github.com/pavel-odintsov/fastnetmon/commit/89e8923759175a104aa491d4d0b683d627088110 >>>> >>>> Would you mind adding this patch and trying build again? >>>> >>>> Thank you! >>>> >>>> On Tue, 3 May 2022 at 19:18, Patrick Matthäi <[email protected]> >>>> wrote: >>>> >>>> > -- YunQiang Su
