| # |
| # This file builds the js components using emscripten. You normally don't need |
| # to run this, as the builds are bundled in the repo in bin/. Running this is |
| # useful if you are a developer and want to update those builds. |
| # |
| # Usage: build-js.sh |
| # Usage: EMSCRIPTEN=path/to/emscripten build-js.sh # explicit emscripten dir |
| # |
| # Emscripten's em++ and tools/webidl_binder.py will be accessed through the |
| # env var EMSCRIPTEN, e.g. ${EMSCRIPTEN}/em++ |
| # |
| # You can get emscripten from |
| # http://kripken.github.io/emscripten-site/docs/getting_started/downloads.html |
| # |
| set -e |
| |
| if [ "$1" == "-h" ] || [ "$1" == "--help" ] || [ "$1" == "-help" ]; then |
| echo "usage: $0 [-g]" >&2 |
| echo " -g produce debug build" >&2 |
| echo "" |
| echo "If EMSCRIPTEN is set in the envionment, emscripten will be loaded" |
| echo "from that directory. Otherwise the location of emscripten is resolved" |
| echo "through PATH." |
| exit 1 |
| fi |
| |
| if [ -z $EMSCRIPTEN ]; then |
| if (which emcc >/dev/null); then |
| # Found emcc in PATH -- set EMSCRIPTEN (we need this to access webidl_binder.py) |
| EMSCRIPTEN=$(dirname "$(which emcc)") |
| else |
| echo "$0: EMSCRIPTEN environment variable is not set and emcc was not found in PATH" >&2 |
| exit 1 |
| fi |
| elif [ ! -d "$EMSCRIPTEN" ]; then |
| echo "$0: \"$EMSCRIPTEN\" (\$EMSCRIPTEN) is not a directory" >&2 |
| exit 1 |
| fi |
| |
| EMCC_ARGS="-std=c++11 --memory-init-file 0" |
| EMCC_ARGS="$EMCC_ARGS -s ALLOW_MEMORY_GROWTH=1" |
| EMCC_ARGS="$EMCC_ARGS -s DEMANGLE_SUPPORT=1" |
| OUT_FILE_SUFFIX= |
| |
| if [ "$1" == "-g" ]; then |
| EMCC_ARGS="$EMCC_ARGS -O2" # need emcc js opts to be decently fast |
| EMCC_ARGS="$EMCC_ARGS --llvm-opts 0 --llvm-lto 0" |
| EMCC_ARGS="$EMCC_ARGS -profiling" |
| OUT_FILE_SUFFIX=-g |
| else |
| EMCC_ARGS="$EMCC_ARGS -Oz" |
| EMCC_ARGS="$EMCC_ARGS --llvm-lto 1" |
| EMCC_ARGS="$EMCC_ARGS -s ELIMINATE_DUPLICATE_FUNCTIONS=1" |
| # Why these settings? |
| # See https://gist.github.com/rsms/e33c61a25a31c08260161a087be03169 |
| fi |
| |
| |
| echo "building wasm.js" |
| |
| "$EMSCRIPTEN/em++" \ |
| $EMCC_ARGS \ |
| src/wasm-js.cpp \ |
| src/ast/ExpressionAnalyzer.cpp \ |
| src/ast/ExpressionManipulator.cpp \ |
| src/passes/pass.cpp \ |
| src/passes/DeadCodeElimination.cpp \ |
| src/passes/Print.cpp \ |
| src/passes/LegalizeJSInterface.cpp \ |
| src/passes/Vacuum.cpp \ |
| src/emscripten-optimizer/parser.cpp \ |
| src/emscripten-optimizer/simple_ast.cpp \ |
| src/emscripten-optimizer/optimizer-shared.cpp \ |
| src/wasm-emscripten.cpp \ |
| src/support/colors.cpp \ |
| src/support/safe_integer.cpp \ |
| src/support/bits.cpp \ |
| src/support/threads.cpp \ |
| src/asmjs/asm_v_wasm.cpp \ |
| src/asmjs/shared-constants.cpp \ |
| src/wasm/wasm.cpp \ |
| src/wasm/wasm-s-parser.cpp \ |
| src/wasm/wasm-binary.cpp \ |
| -Isrc/ \ |
| -o bin/wasm${OUT_FILE_SUFFIX}.js \ |
| -s MODULARIZE=1 \ |
| -s 'EXPORT_NAME="WasmJS"' |
| #-DWASM_JS_DEBUG |
| #-DWASM_INTERPRETER_DEBUG=2 |
| |
| echo "building binaryen.js" |
| |
| if [ "$1" != "-g" ]; then |
| EMCC_ARGS="$EMCC_ARGS --closure 1" |
| fi |
| |
| python "$EMSCRIPTEN/tools/webidl_binder.py" src/js/binaryen.idl glue |
| |
| "$EMSCRIPTEN/em++" \ |
| $EMCC_ARGS \ |
| -std=c++11 \ |
| src/binaryen-js.cpp \ |
| src/passes/pass.cpp \ |
| src/passes/MergeBlocks.cpp \ |
| src/passes/Print.cpp \ |
| src/passes/RemoveUnusedBrs.cpp \ |
| src/passes/RemoveUnusedNames.cpp \ |
| src/passes/PostEmscripten.cpp \ |
| src/passes/SimplifyLocals.cpp \ |
| src/passes/ReorderLocals.cpp \ |
| src/passes/Vacuum.cpp \ |
| src/passes/DuplicateFunctionElimination.cpp \ |
| src/passes/CoalesceLocals.cpp \ |
| src/emscripten-optimizer/parser.cpp \ |
| src/emscripten-optimizer/simple_ast.cpp \ |
| src/emscripten-optimizer/optimizer-shared.cpp \ |
| src/support/colors.cpp \ |
| src/support/safe_integer.cpp \ |
| src/support/bits.cpp \ |
| src/support/threads.cpp \ |
| src/asmjs/asm_v_wasm.cpp \ |
| src/asmjs/shared-constants.cpp \ |
| src/wasm/wasm.cpp \ |
| src/wasm/wasm-s-parser.cpp \ |
| src/wasm/wasm-binary.cpp \ |
| -Isrc/ \ |
| -o bin/binaryen${OUT_FILE_SUFFIX}.js \ |
| -s 'EXPORT_NAME="Binaryen"' \ |
| --memory-init-file 0 \ |
| -s INVOKE_RUN=0 \ |
| --pre-js src/js/binaryen.js-pre.js \ |
| --post-js glue.js \ |
| --post-js src/js/binaryen.js-extended.js \ |
| --post-js src/js/binaryen.js-post.js |