| BASE:=base.tar.gz | |
| DEV_BUILD:=0 | |
| GO:=go | |
| GO_FLAGS:=-ldflags "-s -w" # strip Go binaries | |
| CGO_ENABLED:=0 | |
| GOMODVENDOR:= | |
| CFLAGS:=-O2 -Wall | |
| LDFLAGS:=-static -s # strip C binaries | |
| GO_FLAGS_EXTRA:= | |
| ifeq "$(GOMODVENDOR)" "1" | |
| GO_FLAGS_EXTRA += -mod=vendor | |
| endif | |
| GO_BUILD_TAGS:= | |
| ifneq ($(strip $(GO_BUILD_TAGS)),) | |
| GO_FLAGS_EXTRA += -tags="$(GO_BUILD_TAGS)" | |
| endif | |
| GO_BUILD:=CGO_ENABLED=$(CGO_ENABLED) $(GO) build $(GO_FLAGS) $(GO_FLAGS_EXTRA) | |
| SRCROOT=$(dir $(abspath $(firstword $(MAKEFILE_LIST)))) | |
| # additional directories to search for rule prerequisites and targets | |
| VPATH=$(SRCROOT) | |
| DELTA_TARGET=out/delta.tar.gz | |
| ifeq "$(DEV_BUILD)" "1" | |
| DELTA_TARGET=out/delta-dev.tar.gz | |
| endif | |
| # The link aliases for gcstools | |
| GCS_TOOLS=\ | |
| generichook \ | |
| install-drivers | |
| .PHONY: all always rootfs test | |
| .DEFAULT_GOAL := all | |
| all: out/initrd.img out/rootfs.tar.gz | |
| clean: | |
| find -name '*.o' -print0 | xargs -0 -r rm | |
| rm -rf bin deps rootfs out | |
| test: | |
| cd $(SRCROOT) && $(GO) test -v ./internal/guest/... | |
| rootfs: out/rootfs.vhd | |
| out/rootfs.vhd: out/rootfs.tar.gz bin/cmd/tar2ext4 | |
| gzip -f -d ./out/rootfs.tar.gz | |
| bin/cmd/tar2ext4 -vhd -i ./out/rootfs.tar -o $@ | |
| out/rootfs.tar.gz: out/initrd.img | |
| rm -rf rootfs-conv | |
| mkdir rootfs-conv | |
| gunzip -c out/initrd.img | (cd rootfs-conv && cpio -imd) | |
| tar -zcf $@ -C rootfs-conv . | |
| rm -rf rootfs-conv | |
| out/initrd.img: $(BASE) $(DELTA_TARGET) $(SRCROOT)/hack/catcpio.sh | |
| $(SRCROOT)/hack/catcpio.sh "$(BASE)" $(DELTA_TARGET) > out/initrd.img.uncompressed | |
| gzip -c out/initrd.img.uncompressed > $@ | |
| rm out/initrd.img.uncompressed | |
| # This target includes utilities which may be useful for testing purposes. | |
| out/delta-dev.tar.gz: out/delta.tar.gz bin/internal/tools/snp-report | |
| rm -rf rootfs-dev | |
| mkdir rootfs-dev | |
| tar -xzf out/delta.tar.gz -C rootfs-dev | |
| cp bin/internal/tools/snp-report rootfs-dev/bin/ | |
| tar -zcf $@ -C rootfs-dev . | |
| rm -rf rootfs-dev | |
| out/delta.tar.gz: bin/init bin/vsockexec bin/cmd/gcs bin/cmd/gcstools bin/cmd/hooks/wait-paths Makefile | |
| @mkdir -p out | |
| rm -rf rootfs | |
| mkdir -p rootfs/bin/ | |
| mkdir -p rootfs/info/ | |
| cp bin/init rootfs/ | |
| cp bin/vsockexec rootfs/bin/ | |
| cp bin/cmd/gcs rootfs/bin/ | |
| cp bin/cmd/gcstools rootfs/bin/ | |
| cp bin/cmd/hooks/wait-paths rootfs/bin/ | |
| for tool in $(GCS_TOOLS); do ln -s gcstools rootfs/bin/$$tool; done | |
| git -C $(SRCROOT) rev-parse HEAD > rootfs/info/gcs.commit && \ | |
| git -C $(SRCROOT) rev-parse --abbrev-ref HEAD > rootfs/info/gcs.branch && \ | |
| date --iso-8601=minute --utc > rootfs/info/tar.date | |
| $(if $(and $(realpath $(subst .tar,.testdata.json,$(BASE))), $(shell which jq)), \ | |
| jq -r '.IMAGE_NAME' $(subst .tar,.testdata.json,$(BASE)) 2>/dev/null > rootfs/info/image.name && \ | |
| jq -r '.DATETIME' $(subst .tar,.testdata.json,$(BASE)) 2>/dev/null > rootfs/info/build.date) | |
| tar -zcf $@ -C rootfs . | |
| rm -rf rootfs | |
| bin/cmd/gcs bin/cmd/gcstools bin/cmd/hooks/wait-paths bin/cmd/tar2ext4 bin/internal/tools/snp-report: | |
| @mkdir -p $(dir $@) | |
| GOOS=linux $(GO_BUILD) -o $@ $(SRCROOT)/$(@:bin/%=%) | |
| bin/vsockexec: vsockexec/vsockexec.o vsockexec/vsock.o | |
| @mkdir -p bin | |
| $(CC) $(LDFLAGS) -o $@ $^ | |
| bin/init: init/init.o vsockexec/vsock.o | |
| @mkdir -p bin | |
| $(CC) $(LDFLAGS) -o $@ $^ | |
| %.o: %.c | |
| @mkdir -p $(dir $@) | |
| $(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $< |