Makefile

WASMCEPTION ?= /Users/yury/Work/llvmwasm/inception
EMSCRIPTEN ?= /Users/yury/Work/emscripten
LLVM_DWARFDUMP ?= $(WASMCEPTION)/dist/bin/llvm-dwarfdump
PUBLISH_URL ?= https://yurydelendik.github.io/sqlite-playground/
CUR_DIR = $(shell pwd)
WASM2JS = /Users/yury/Work/binaryen/bin/wasm2js
WASM_SOURCEMAP_CMD = $(EMSCRIPTEN)/tools/wasm-sourcemap.py \
  --dwarfdump $(LLVM_DWARFDUMP) \
  --prefix $(HOME)/=wasm-src:///
LLVM = $(WASMCEPTION)/dist/bin/clang \
  -Imisc/ \
  --target=wasm32-unknown-unknown-wasm \
  --sysroot $(WASMCEPTION)/sysroot \
  -nostartfiles -O2 -v -g
EXPORTS = \
  alloc_mem \
  free_mem \
  init_db \
  destroy_db \
  exec_cmd \
  get_last_error \
  $(NULL)

build: build/playground.wasm build/playground.wasm.map

build/playground.o: src/playground.c misc/sqlite3.h Makefile
	# Build wasm binaries
	mkdir -p build/
	$(LLVM) $(CUR_DIR)/src/playground.c -c -o build/playground.o

build/sqlite3.o: misc/sqlite3.c misc/sqlite3.h Makefile
	# Build wasm binaries
	mkdir -p build/
	$(LLVM) $(CUR_DIR)/misc/sqlite3.c -c -o build/sqlite3.o

LINKER_PREFIX := -Wl,
build/playground.wasm: build/playground.o build/sqlite3.o
	$(LLVM) build/playground.o build/sqlite3.o -o build/playground.wasm \
	  $(LINKER_PREFIX)--no-entry,--no-threads,--allow-undefined-file=src/playground.syms \
	  $(patsubst %,$(LINKER_PREFIX)--export=%,$(EXPORTS))
	# Make sources available for debugger
	mkdir -p build/src; cp src/playground.c build/src/
	mkdir -p build/misc; cp misc/sqlite3.c misc/sqlite3.h build/misc/

build/playground.wasm.map: build/playground.wasm
	$(WASM_SOURCEMAP_CMD) \
	  -s -o build/playground.wasm.map \
	  -x -u $(PUBLISH_URL)build/playground.wasm.map -w build/playground.prod.wasm \
		build/playground.wasm

build/playground.js: build/playground.wasm build/playground.wasm.map
	$(WASM2JS) \
		-ism build/playground.wasm.map \
		build/playground.wasm \
		-o build/playground.jsm \
		-osm build/playground.jsm.map \
		-osu playground.jsm.map
	node --max-old-space-size=16384 ./node_modules/.bin/babel \
	  --plugins @babel/transform-modules-umd --presets @babel/preset-env build/playground.jsm \
		-o build/playground.js -s true --module-id sqliteplayground
	node -e "const fs=require('fs'); \
	  const{sourcesContent}=JSON.parse(fs.readFileSync('build/playground.wasm.map')); \
		const map = JSON.parse(fs.readFileSync('build/playground.js.map'));map.sourcesContent = sourcesContent; \
		fs.writeFileSync('build/playground.js.map', JSON.stringify(map));"

clean:
	-rm build/playground.* build/sqlite3.*

.PHONY: build clean