makefile

$(shell mkdir -p bin)
$(shell mkdir -p build)
$(shell mkdir -p build/usr/local/include)

INCLUDE_FLAGS := -I$(realpath build/usr/local/include)
LDFLAGS := -s -static -lm -lseccomp
CC := gcc -O2 -W -Wall -Wextra -pedantic -Werror -std=c11 $(INCLUDE_FLAGS)
AMALG := amalg

OBJECTS := build/main.o build/sandbox.o build/luajit_wrapper.o build/usr/local/lib/libluajit-5.1.a build/fake_dl.o
OBJECTS := $(OBJECTS) build/resumer.o

.PHONY: default
default: bin/exe

.PHONY: test
test: bin/exe
	./test_runner.py -vvvv

.PHONY: test-fast
test-fast: bin/exe
	./test_runner.py -vvvv --fast

.PHONY: clean
clean:
	rm -rf bin/* build/*

.PHONY: cleaner
cleaner: clean third_party/luajit-2.0/Makefile
	cd third_party/luajit-2.0 && make clean

.PHONY: cleanest
cleanest: clean
	find third_party/luajit-2.0/ -mindepth 1 -maxdepth 1 -exec rm -r {} \+

bin/exe: $(OBJECTS)
	$(CC) $+ -o $@ $(LDFLAGS)

build/main.o: src/main.c build/usr/local/include/luajit-2.0/lua.h
build/sandbox.o: src/sandbox.c src/sandbox.h
build/luajit_wrapper.o: src/luajit_wrapper.c src/luajit_wrapper.h
build/fake_dl.o: src/fake_dl.c
build/resumer.o: src/c-runtime/resumer.c src/c-runtime/resumer.h src/c-runtime/lj_headers.h

build/%.o:
	$(CC) -c $< -o $@

build/usr/local/include/luajit-2.0/% build/usr/local/lib/%: third_party/luajit-2.0/Makefile
	cd third_party/luajit-2.0/ && $(MAKE) CFLAGS="-DLUAJIT_ENABLE_LUA52COMPAT" $(AMALG)
	cd third_party/luajit-2.0/ && $(MAKE) install DESTDIR=$(realpath build)

third_party/luajit-2.0/Makefile:
	git submodule update third_party/luajit-2.0/