1#!/bin/bash 2# Copyright 2021 Google LLC 3# 4# Use of this source code is governed by a BSD-style license that can be 5# found in the LICENSE file. 6 7set -ex 8 9BASE_DIR=`cd $(dirname ${BASH_SOURCE[0]}) && pwd` 10# This expects the environment variable EMSDK to be set 11if [[ ! -d $EMSDK ]]; then 12 cat >&2 << "EOF" 13Be sure to set the EMSDK environment variable to the location of Emscripten SDK: 14 15 https://emscripten.org/docs/getting_started/downloads.html 16EOF 17 exit 1 18fi 19 20# Navigate to SKIA_HOME from where this file is located. 21pushd $BASE_DIR/../.. 22 23if [[ $@ == *debug* ]]; then 24 echo "Building a Debug build" 25 DEBUG=true 26 EXTRA_CFLAGS="\"-DSK_DEBUG\", \"-DGPU_TEST_UTILS\", " 27 RELEASE_CONF="-O1 --js-opts 0 -s DEMANGLE_SUPPORT=1 -frtti -s ASSERTIONS=1 -s GL_ASSERTIONS=1 -g \ 28 -DSK_DEBUG" 29 BUILD_DIR=${BUILD_DIR:="out/tskit_debug"} 30else 31 echo "Building a release build" 32 DEBUG=false 33 BUILD_DIR=${BUILD_DIR:="out/tskit"} 34 RELEASE_CONF="-O3 --closure 1 -DSK_RELEASE" 35 EXTRA_CFLAGS="\"-DSK_RELEASE\", \"-DGPU_TEST_UTILS\", " 36fi 37 38EXTENSION_OPT="--pre-js $BASE_DIR/build/extension.js \ 39$BASE_DIR/bindings/extension.cpp 40" 41if [[ $@ = *no_ext* ]] ; then 42 echo "disabling extension" 43 EXTENSION_OPT="" 44fi 45 46mkdir -p $BUILD_DIR 47# sometimes the .a files keep old symbols around - cleaning them out makes sure 48# we get a fresh build. 49rm -f $BUILD_DIR/*.a 50 51source $EMSDK/emsdk_env.sh 52EMCC=`which emcc` 53EMCXX=`which em++` 54EMAR=`which emar` 55 56export EMCC_CLOSURE_ARGS="--externs $BASE_DIR/build/externs.js " 57 58EMCC_DEBUG=1 ${EMCXX} \ 59 $RELEASE_CONF \ 60 -I. \ 61 -std=c++17 \ 62 --bind \ 63 --no-entry \ 64 --pre-js $BASE_DIR/build/load.js \ 65 --pre-js $BASE_DIR/build/memory.js \ 66 --pre-js $BASE_DIR/build/core.js \ 67 $BASE_DIR/bindings/core.cpp \ 68 $EXTENSION_OPT \ 69 -s ALLOW_MEMORY_GROWTH=1 \ 70 -s EXPORT_NAME="InitTSKit" \ 71 -s EXPORTED_FUNCTIONS=['_malloc','_free'] \ 72 -s FORCE_FILESYSTEM=0 \ 73 -s FILESYSTEM=0 \ 74 -s MODULARIZE=1 \ 75 -s NO_EXIT_RUNTIME=1 \ 76 -s INITIAL_MEMORY=256MB \ 77 -s WASM=1 \ 78 -o $BUILD_DIR/tskit.js 79