[GitHub] [couchdb] nickva commented on issue #3454: Restoring ppc64le to the CI builds

[GitBox <gi...@apache.org>]

nickva commented on issue #3454:
URL: https://github.com/apache/couchdb/issues/3454#issuecomment-876738187


   Working with @afsanjar and other members of the Power team we have a new PowerVS machine connecting to our Apache CouchDB Jenkins instance.
   
   It's also added to the couchdb-infra-cm so it can be discovered and set-up that way (get the external IPs, run playbooks on it, etc). It's a bit of a special case still as `cloud.ibm.com` API for PowerVS instances is quite a bit different than for the other VPC instances.
   
   A few issues encountered currently are:
   
    * qemu cross platform architecture setup in couchdb-ci crashes with ppc64le build fails when building on MacOS BigSur (x86_64):
   ```
   CONTAINERARCH=ppc64le ERLANGVERSION=21.3.8.17 ./build.sh platform debian-buster
   => # qemu: uncaught target signal 4 (Illegal instruction) - core dumped
   ```
   
    * I tried building on the machine itself and it looks like fails to build foundationdb. We have a setting to ignore missing intrinsics, however it later on stumbles on a missing __rdtsc instruction:
   ```
   apt-dependencies.sh in couchdb-ci repo:
   
   if [ "${ARCH}" == "ppc64le" ]; then
       cmake -DCMAKE_CXX_FLAGS="-DNO_WARN_X86_INTRINSICS" -G Ninja ..
   ```
   
   ```
   [108/751] Building CXX object flow/CMakeFiles/flow.dir/Net2.actor.g.cpp.o
   FAILED: flow/CMakeFiles/flow.dir/Net2.actor.g.cpp.o
   /usr/bin/c++  -DBOOST_ERROR_CODE_HEADER_ONLY -DBOOST_SYSTEM_NO_DEPRECATED -DHAS_ALIGNED_ALLOC -DNO_INTELLISENSE -DUSE_UCONTEXT -I../ -I. -isystem boostProject-prefix/src/boostProject -DNO_WARN_X86_INTRINSICS -O3 -DNDEBUG   -DCMAKE_BUILD -ggdb -fno-omit-frame-pointer -Wno-pragmas -Wno-attributes -Wno-error=format -Wunused-variable -Wno-deprecated -fvisibility=hidden -Wreturn-type -fPIC -DHAVE_OPENSSL -std=gnu++17 -MD -MT flow/CMakeFiles/flow.dir/Net2.actor.g.cpp.o -MF flow/CMakeFiles/flow.dir/Net2.actor.g.cpp.o.d -o flow/CMakeFiles/flow.dir/Net2.actor.g.cpp.o -c flow/Net2.actor.g.cpp
   In file included from /foundationdb/flow/Net2.actor.cpp:21:
   /foundationdb/flow/Net2.actor.cpp: In member function 'virtual void N2::Net2::run()':
   ../flow/Platform.h:438:28: error: '__rdtsc' was not declared in this scope
    #define timestampCounter() __rdtsc()
                               ^~~~~~~
   /foundationdb/flow/Net2.actor.cpp:1186:15: note: in expansion of macro 'timestampCounter'
       tscBegin = timestampCounter();
                  ^~~~~~~~~~~~~~~~
   ../flow/Platform.h:438:28: note: suggested alternative: '__dt '
   
   ninja: build stopped: subcommand failed.
   ```
      So to make it work I had to skip building foundationdb, so the image will work on 3.x only, and also build it on the Power machine in docker not via multi-arch docker+qemu setup in https://github.com/apache/couchdb-ci


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