3ba713aabf
Removed all MOBILEAPP preprocessor conditionals from Util.hpp/.cpp Added isMobileApp function to help remove further conditionals. Signed-off-by: Jaume Pujantell <jaume.pujantell@collabora.com> Change-Id: I038a4db47ec2a2c7bb10f5696df5571b13bd9a61 |
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base64.hpp | ||
Makefile.am | ||
poco-1.12.4-emscripten.patch | ||
poco-devel-emscripten.patch | ||
poco-no-special-expat-sauce.diff | ||
README | ||
README.no-container.md | ||
wasmapp.cpp | ||
wasmapp.hpp |
NOTE: For instructions on how to build and run it without the Allotropia-supplied container, see wasm/README.no-container.md. = WASM with emscripten = Building for WASM with emscripten is still a bit immature and many projects need patching to work. Note that there are wrapper tools like "emconfigure", "emmake", "emcmake" that tend to set up environment variables like CC properly, although some project's build system unfortunately override that. Linking WASM executable uses a lot of memory; without optimisations or with -O1 in LDFLAGS, /usr/bin/time prints "1660068maxresident" which should work anywhere, but with -O2 in LDFLAGS (which is the default) some LTO happens that uses about 8x as much RAM, "12261016maxresident" or ~12 GiB... so append CXXFLAGS='-g -O1' or similar to the configure invocation if out of memory. For convenience it's recommended to build with a docker container that has the required build tools. podman pull public.ecr.aws/allotropia/libo-builders/wasm == Build LO core == First you need to build LibreOffice core with emscripten. Currently best to use "feature/wasm" branch. It can be good to create an environment file you can source in new shells eg. export GITREPO=$HOME/lo/feature_wasm export EXTSOURCES=$HOME/lo/ext_sources export BUILDDIR=/data/lo/build_feature_wasm export ONLINEGITREPO=$HOME/lo/online export ONLINEBUILDDIR=/data/lo/build_online_wasm These examples assume that the git repo is in $GITREPO, the build directory in $BUILDDIR and the tarball download cache in $EXTSOURCES - adjust these to your preferences. podman run -v $GITREPO:$GITREPO:ro -v $BUILDDIR:$BUILDDIR -v $EXTSOURCES:/ext_sources:rw --security-opt=label=disable -ti public.ecr.aws/allotropia/libo-builders/wasm /bin/bash -c "source /home/builder/emsdk/emsdk_env.sh && cd $BUILDDIR/ && $GITREPO/autogen.sh --with-external-tar=/ext_sources --with-distro=CPWASM-LOKit" podman run -v $GITREPO:$GITREPO:ro -v $BUILDDIR:$BUILDDIR -v $EXTSOURCES:/ext_sources:rw --security-opt=label=disable -ti public.ecr.aws/allotropia/libo-builders/wasm /bin/bash -c "source /home/builder/emsdk/emsdk_env.sh && cd $BUILDDIR/ && make -rj8" == Build Online using dependencies from container == The container contains prebuilt libzstd and POCO for convenience. Note that here the LO core (and builddir, if separate) must be mapped to the same directory in the container as it was when building core, due to files containing absolute paths. podman run -v $GITREPO:$GITREPO:ro -v $BUILDDIR:$BUILDDIR:ro -v $ONLINEGITREPO:$ONLINEGITREPO:rw -v $ONLINEBUILDDIR:$ONLINEBUILDDIR:rw --security-opt=label=disable -ti public.ecr.aws/allotropia/libo-builders/wasm /bin/bash -c "source /home/builder/emsdk/emsdk_env.sh && cd $ONLINEBUILDDIR/ && $ONLINEGITREPO/autogen.sh && emconfigure $ONLINEGITREPO/configure --disable-werror --with-lokit-path=$GITREPO/include --with-lo-path=$BUILDDIR/instdir --with-lo-builddir=$BUILDDIR --with-zstd-includes=/usr/local/include --with-zstd-libs=/usr/local/lib --with-poco-includes=/usr/local/include --with-poco-libs=/usr/local/lib --host=wasm32-local-emscripten" podman run -v $GITREPO:$GITREPO:ro -v $BUILDDIR:$BUILDDIR:ro -v $ONLINEGITREPO:$ONLINEGITREPO:rw -v $ONLINEBUILDDIR:$ONLINEBUILDDIR:rw --security-opt=label=disable -ti public.ecr.aws/allotropia/libo-builders/wasm /bin/bash -c "source /home/builder/emsdk/emsdk_env.sh && cd $ONLINEBUILDDIR/ && emmake make -rj8" == Build Online dependencies manually == Then build libzstd: * with assembly code disabled * using the Makefile (didn't try its other build systems) tar -xzvf ~/Downloads/zstd-1.5.2.tar.gz cd zstd-1.5.2/ podman run -v /data/lo/zstd-1.5.2:/data/lo/zstd-1.5.2:rw --security-opt=label=disable -ti public.ecr.aws/allotropia/libo-builders/wasm /bin/bash -c 'source /home/builder/emsdk/emsdk_env.sh && cd /data/lo/zstd-1.5.2/ && emmake make -j8 lib-nomt ZSTD_NO_ASM=1' Then build POCO: * this requires two patches (currently exists patch for 1.12.4 and untested "devel" branch) plus renaming one source file (which actually is from expat but Poco includes) * note that the header Poco/Platform.h maps EMSCRIPTEN to POCO_OS_LINUX * it has both Makefiles and CMake but i couldn't get CMake to use CXXFLAGS to disable some Linux-specific code; i tried variations on: emcmake cmake -S .. -DENABLE_MONGODB=off -DENABLE_DATA_SQLITE=off -DENABLE_REDIS=off -DENABLE_PROMETHEUS=off -DENABLE_PDF=off -DENABLE_SEVENZIP=off -DENABLE_ZIP=off -DENABLE_CPPPARSER=off -DENABLE_POCODOC=off -DENABLE_PAGECOMPILER=off -DENABLE_PAGECOMPILER_FILE2PAGE=off -DENABLE_ACTIVERECORD=off -DENABLE_ACTIVERECORD_COMPILER=off -DENABLE_DATA=off -DENABLE_DATA_ODBC=off -DENABLE_DATA_POSTGRESQL=off -DENABLE_DATA_MYSQL=off -DENABLE_APACHECONNECTOR=off -DENABLE_JWT=off CXXFLAGS=-DPOCO_NO_LINUX_IF_PACKET_H * Online requires a single include directory so "make install" must be used tar -xjvf ~/Downloads/poco-1.12.4-all.tar.bz2 cd poco-1.12.4-all patch -p1 < $ONLINEGITREPO/wasm/poco-1.12.4-emscripten.patch mv XML/src/xmlparse.cpp XML/src/xmlparse.c patch -p0 < $ONLINEGITREPO/wasm/poco-no-special-expat-sauce.diff podman run -v /data/lo/poco-1.12.4-all:/data/lo/poco-1.12.4-all:rw --security-opt=label=disable -ti public.ecr.aws/allotropia/libo-builders/wasm /bin/bash -c 'source /home/builder/emsdk/emsdk_env.sh && cd /data/lo/poco-1.12.4-all && emconfigure ./configure --static --no-samples --no-tests --omit=Crypto,NetSSL_OpenSSL,JWT,Data,Data/SQLite,Data/ODBC,Data/MySQL,Data/PostgreSQL,Zip,PageCompiler,PageCompiler/File2Page,MongoDB,Redis,ActiveRecord,ActiveRecord/Compiler,Prometheus && emmake make -j8 CC=/home/builder/emsdk/upstream/emscripten/emcc CXX=/home/builder/emsdk/upstream/emscripten/em++ LD=/home/builder/emsdk/upstream/emscripten/em++ CXXFLAGS="-DPOCO_NO_LINUX_IF_PACKET_H -DPOCO_NO_INOTIFY -pthread -s USE_PTHREADS=1 -s DISABLE_EXCEPTION_CATCHING=0" && make -j8 install INSTALLDIR=/data/lo/poco-1.12.4-all/install' == Build Online with manually built dependencies == Then build Online itself: Note that here the LO core (and builddir, if separate) must be mapped to the same directory in the container as it was when building core, due to files containing absolute paths. podman run -v /data/lo/zstd-1.5.2:/data/lo/zstd-1.5.2:ro -v /data/lo/poco-1.12.4-all:/data/lo/poco-1.12.4-all:ro -v $GITREPO:$GITREPO:ro -v $BUILDDIR:$BUILDDIR:ro -v $ONLINEGITREPO:$ONLINEGITREPO:rw -v $ONLINEBUILDDIR:$ONLINEBUILDDIR:rw --security-opt=label=disable -ti public.ecr.aws/allotropia/libo-builders/wasm /bin/bash -c "source /home/builder/emsdk/emsdk_env.sh && cd $ONLINEBUILDDIR/ && $ONLINEGITREPO/autogen.sh && emconfigure $ONLINEGITREPO/configure --with-lokit-path=$GITREPO/include --with-lo-path=$BUILDDIR/instdir --with-lo-builddir=$BUILDDIR --with-zstd-includes=/data/lo/zstd-1.5.2/lib --with-zstd-libs=/data/lo/zstd-1.5.2/lib --with-poco-includes=/data/lo/poco-1.12.4-all/install/include --with-poco-libs=/data/lo/poco-1.12.4-all/install/lib --host=wasm32-local-emscripten" podman run -v /data/lo/zstd-1.5.2:/data/lo/zstd-1.5.2:ro -v /data/lo/poco-1.12.4-all:/data/lo/poco-1.12.4-all:ro -v $GITREPO:$GITREPO:ro -v $BUILDDIR:$BUILDDIR:ro -v $ONLINEGITREPO:$ONLINEGITREPO:rw -v $ONLINEBUILDDIR:$ONLINEBUILDDIR:rw --security-opt=label=disable -ti public.ecr.aws/allotropia/libo-builders/wasm /bin/bash -c "source /home/builder/emsdk/emsdk_env.sh && cd $ONLINEBUILDDIR/ && emmake make"