e17862a71e
After the update to emscripten 1.39.6, source maps don't work on ASMJS builds and debugger needed the same change of the default MAIN_MODULE setting as canvaskit and pathkit. Change-Id: Ifb920dee998ae41fd500adca587b1ad20cfef584 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/267076 Reviewed-by: Kevin Lubick <kjlubick@google.com>
135 lines
4.0 KiB
Bash
Executable File
135 lines
4.0 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2018 Google LLC
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#
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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set -ex
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BASE_DIR=`cd $(dirname ${BASH_SOURCE[0]}) && pwd`
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HTML_SHELL=$BASE_DIR/shell.html
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BUILD_DIR=${BUILD_DIR:="out/pathkit"}
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mkdir -p $BUILD_DIR
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# sometimes the .a files keep old symbols around - cleaning them out makes sure
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# we get a fresh build.
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rm -f $BUILD_DIR/*.a
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# This expects the environment variable EMSDK to be set
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if [[ ! -d $EMSDK ]]; then
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echo "Be sure to set the EMSDK environment variable."
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exit 1
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fi
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# Navigate to SKIA_HOME from where this file is located.
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pushd $BASE_DIR/../..
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echo "Putting output in $BUILD_DIR (pwd = `pwd`)"
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# Run this from $SKIA_HOME, not from the directory this file is in.
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if [[ ! -d ./src ]]; then
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echo "Cannot locate Skia source. Is the source checkout okay? Exiting."
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exit 1
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fi
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if [[ $@ == *help* ]]; then
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echo "By default, this script builds a production WASM build of PathKit."
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echo ""
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echo "It is put in ${BUILD_DIR}, configured by the BUILD_DIR environment"
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echo "variable. Additionally, the EMSDK environment variable must be set."
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echo "This script takes several optional parameters:"
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echo " test = Make a build suitable for running tests or profiling"
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echo " debug = Make a build suitable for debugging (defines SK_DEBUG)"
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echo " asm.js = Build for asm.js instead of WASM (very experimental)"
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echo " serve = starts a webserver allowing a user to navigate to"
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echo " localhost:8000/pathkit.html to view the demo page."
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exit 0
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fi
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# Use -O0 for larger builds (but generally quicker)
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# Use -Oz for (much slower, but smaller/faster) production builds
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export EMCC_CLOSURE_ARGS="--externs $BASE_DIR/externs.js "
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RELEASE_CONF="-Oz --closure 1 -s EVAL_CTORS=1 --llvm-lto 3 -s ELIMINATE_DUPLICATE_FUNCTIONS=1 -DSK_RELEASE"
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# It is very important for the -DSK_RELEASE/-DSK_DEBUG to match on the libskia.a, otherwise
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# things like SKDEBUGCODE are sometimes compiled in and sometimes not, which can cause headaches
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# like sizeof() mismatching between .cpp files and .h files.
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EXTRA_CFLAGS="\"-DSK_RELEASE\""
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if [[ $@ == *test* ]]; then
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echo "Building a Testing/Profiling build"
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RELEASE_CONF="-O2 --profiling -DPATHKIT_TESTING -DSK_RELEASE"
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elif [[ $@ == *debug* ]]; then
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echo "Building a Debug build"
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EXTRA_CFLAGS="\"-DSK_DEBUG\""
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RELEASE_CONF="-O0 --js-opts 0 -s SAFE_HEAP=1 -s ASSERTIONS=1 -g3 -DPATHKIT_TESTING -DSK_DEBUG"
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fi
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WASM_CONF="-s WASM=1"
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if [[ $@ == *asm.js* ]]; then
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echo "Building with asm.js instead of WASM"
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WASM_CONF="-s WASM=0 -s ALLOW_MEMORY_GROWTH=1"
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fi
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OUTPUT="-o $BUILD_DIR/pathkit.js"
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source $EMSDK/emsdk_env.sh
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EMCC=`which emcc`
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EMCXX=`which em++`
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EMAR=`which emar`
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# Turn off exiting while we check for ninja (which may not be on PATH)
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set +e
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NINJA=`which ninja`
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if [[ -z $NINJA ]]; then
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git clone "https://chromium.googlesource.com/chromium/tools/depot_tools.git" --depth 1 $BUILD_DIR/depot_tools
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NINJA=$BUILD_DIR/depot_tools/ninja
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fi
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# Re-enable error checking
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set -e
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echo "Compiling bitcode"
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./bin/fetch-gn
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./bin/gn gen ${BUILD_DIR} \
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--args="cc=\"${EMCC}\" \
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cxx=\"${EMCXX}\" \
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ar=\"${EMAR}\" \
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extra_cflags=[\"-DSK_DISABLE_READBUFFER=1\",\"-s\", \"WARN_UNALIGNED=1\",
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\"-s\", \"MAIN_MODULE=1\",
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${EXTRA_CFLAGS}
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] \
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is_debug=false \
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is_official_build=true \
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is_component_build=false \
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werror=true \
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target_cpu=\"wasm\" "
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${NINJA} -C ${BUILD_DIR} libpathkit.a
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echo "Generating WASM"
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${EMCXX} $RELEASE_CONF -std=c++17 \
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-I. \
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--bind \
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--pre-js $BASE_DIR/helper.js \
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--pre-js $BASE_DIR/chaining.js \
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--post-js $BASE_DIR/ready.js \
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-DSK_DISABLE_READBUFFER=1 \
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-fno-rtti -fno-exceptions -DEMSCRIPTEN_HAS_UNBOUND_TYPE_NAMES=0 \
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$WASM_CONF \
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-s ERROR_ON_UNDEFINED_SYMBOLS=1 \
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-s EXPORT_NAME="PathKitInit" \
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-s MODULARIZE=1 \
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-s NO_EXIT_RUNTIME=1 \
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-s NO_FILESYSTEM=1 \
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-s STRICT=1 \
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-s WARN_UNALIGNED=1 \
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$OUTPUT \
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$BASE_DIR/pathkit_wasm_bindings.cpp \
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${BUILD_DIR}/libpathkit.a
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if [[ $@ == *serve* ]]; then
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pushd $BUILD_DIR
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python serve.py
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fi
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