build: add Makefile

Makefile

@@ -0,0 +1,54 @@
+ARCHS := x86_64 arm aarch64 powerpc
+TARGETS := $(addprefix build-, $(ARCHS))
+
+.PHONY: clean help download_packages build patch-gdb build-docker-image $(TARGETS)
+
+help:
+	@echo "Usage:"
+	@echo "  make build"
+	@echo ""
+
+	@for target in $(TARGETS); do \
+		echo "  $$target"; \
+	done
+
+	@echo ""
+	@echo "  make clean"
+
+build/build-docker-image.stamp: Dockerfile
+	mkdir -p build
+	docker build -t gdb-static .
+	touch build/build-docker-image.stamp
+
+build-docker-image: build/build-docker-image.stamp
+
+build/download-packages.stamp: build/build-docker-image.stamp src/download_packages.sh
+	mkdir -p build/packages
+	docker run --user $(shell id -u):$(shell id -g) \
+		--rm --volume .:/app/gdb gdb-static env TERM=xterm-256color \
+		/app/gdb/src/download_packages.sh /app/gdb/build/packages
+	touch build/download-packages.stamp
+
+download-packages: build/download-packages.stamp
+
+build/patch-gdb.stamp: build/build-docker-image.stamp src/gdb_static.patch build/download-packages.stamp
+	docker run --user $(shell id -u):$(shell id -g) \
+		--rm --volume .:/app/gdb gdb-static env TERM=xterm-256color \
+		/app/gdb/src/patch_gdb.sh /app/gdb/build/packages/gdb /app/gdb/src/gdb_static.patch
+	touch build/patch-gdb.stamp
+
+patch-gdb: build/patch-gdb.stamp
+
+build: $(TARGETS)
+
+$(TARGETS): build-%: download-packages patch-gdb build-docker-image
+	mkdir -p build
+	docker run --user $(shell id -u):$(shell id -g) \
+		--rm --volume .:/app/gdb gdb-static env TERM=xterm-256color \
+		/app/gdb/src/build.sh $* /app/gdb/build/ /app/gdb/src/gdb_static.patch
+
+clean:
+	rm -rf build
+# Kill and remove all containers of image gdb-static
+	docker ps -a | grep -P "^[a-f0-9]+\s+gdb-static\s+" | awk '{print $$1}' | xargs docker rm -f 2>/dev/null || true
+	docker rmi -f gdb-static 2>/dev/null || true