Add Manibuilder

Add a set of Dockerfiles for build testing. If you have an x86 machine
and ~20GiB free disk space, run `make register` and `make -jxx` in
util/manibuilder and go eat some pizza. The former runs a privileged
docker container to set binfmt_misc up for qemu (read the code, don't
trust it).

Regarding the build targets, this is the original state of Manibuilder
as it was used to build-test `flashrom-1.0`. Some fixes to the frame-
work were applied, but fixups for the targets will be done in separate
patches to maintain their original state for reference.

Change-Id: I60863a5c7d70dde71486fccb66cb59b30ba4d982
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/23005
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

util/manibuilder/Makefile

@@ -0,0 +1,97 @@
+QUIET_TEST := @
+
+include Makefile.targets
+
+CC := ccache cc
+MAKECMD := make
+
+spc :=
+spc := $(spc) $(spc)
+
+stem = $(word 1,$(subst :,$(spc),$(subst \:,$(spc),$(1))))
+ident = $(subst :,_,$(subst \:,_,$(1)))
+
+PKGSRC_MIRROR = http://cdn.netbsd.org/
+NETBSD_MIRROR = http://ftp.de.netbsd.org/
+
+anita\:amd64-build: PKGSRC_PATH=pub/pkgsrc/packages/NetBSD/amd64/7.1/All
+anita\:amd64-build: NETBSD_IMAGE=pub/NetBSD/NetBSD-7.1/amd64/
+
+anita\:i386-build: PKGSRC_PATH=pub/pkgsrc/packages/NetBSD/i386/7.1/All
+anita\:i386-build: NETBSD_IMAGE=pub/NetBSD/NetBSD-7.1/i386/
+
+$(addsuffix -build,$(ANITA_TAGS)): %-build: Dockerfile.anita anita-wrapper.sh
+	$(QUIET_SETUP)docker build . -f $< -t mani/$* \
+		--build-arg PKG_PATH=$(PKGSRC_MIRROR)$(PKGSRC_PATH) \
+		--build-arg INST_IMG=$(NETBSD_MIRROR)$(NETBSD_IMAGE)
+
+define build_template
+Dockerfile.$(call ident,$(1)): Dockerfile.$(call stem,$(1)) mani-wrapper.sh
+	$(QUIET_SETUP)sed -e 's|^FROM manibase|FROM $(2)/$(1)|' $$< >$$@
+
+.INTERMEDIATE: Dockerfile.$(call ident,$(1))
+
+$(1)-build: Dockerfile.$(call ident,$(1))
+	$(QUIET_SETUP)docker build . -f $$< -t mani/$(1)
+endef
+
+$(foreach tag,$(MULTIARCH_TAGS), \
+	$(eval $(call build_template,$(tag),multiarch)))
+
+djgpp\:6.1.0-build: %-build: Dockerfile.djgpp mani-wrapper.sh
+	$(QUIET_SETUP)docker build . -f $< -t mani/$*
+
+$(addsuffix -check-build,$(ALL_TAGS)): %-check-build:
+	$(QUIET_SETUP)\
+	[ $$(docker image ls -q mani/$*) ] \
+		|| $(MAKE) $*-build $(if $(QUIET_SETUP),>/dev/null 2>/dev/null)
+
+$(filter centos%,$(MULTIARCH_TAGS)) anita\:sparc: CC=cc
+djgpp\:6.1.0: CC=ccache i586-pc-msdosdjgpp-gcc
+djgpp\:6.1.0: STRIP=i586-pc-msdosdjgpp-strip
+djgpp\:6.1.0: LIBS_BASE=../
+djgpp\:6.1.0: TARGET=strip
+$(ANITA_TAGS): MAKECMD=gmake
+$(ALL_TAGS): export QUIET_SETUP=$(QUIET_TEST)
+$(ALL_TAGS): %: %-check-build
+	$(QUIET_TEST)docker rm -f mani_$(call ident,$*) >/dev/null 2>&1 || true
+	$(QUIET_TEST)\
+	docker run \
+		--env IDENT=$(call ident,$*) \
+		--volume manicache:/home/mani/.ccache \
+		--name mani_$(call ident,$*) mani/$* \
+		"git fetch origin $${TEST_REVISION:-master} && \
+		 git checkout FETCH_HEAD && \
+		 $(MAKECMD) clean && $(MAKECMD) -j$${CPUS:-1} CC='$(CC)' \
+		 $(if $(STRIP),STRIP='$(STRIP)') \
+		 $(if $(LIBS_BASE),LIBS_BASE='$(LIBS_BASE)') \
+		 $(TARGET)" \
+		$(if $(QUIET_TEST),>/dev/null 2>&1) || echo $*: $$?
+
+$(addsuffix -shell,$(ALL_TAGS)): %-shell: %-check-build
+	$(QUIET_SETUP)\
+	if [ $$(docker ps -a -q -f name=mani_$(call ident,$*)) ]; then \
+		docker commit mani_$(call ident,$*) mani_run/$* && \
+		docker run --rm -it \
+			--env IDENT=$(call ident,$*) \
+			--volume manicache:/home/mani/.ccache \
+			--entrypoint /bin/sh mani_run/$* \
+			/home/mani/mani-wrapper.sh \
+			$(patsubst %,"%",$(SHELL_ARG)); \
+		docker image rm mani_run/$*; \
+	else \
+		docker run --rm -it \
+			--env IDENT=$(call ident,$*) \
+			--volume manicache:/home/mani/.ccache \
+			mani/$* $(patsubst %,"%",$(SHELL_ARG)); \
+	fi
+
+.PHONY: $(foreach s,-build -check-build -shell, $(addsuffix $(s),$(ALL_TAGS)))
+
+register:
+	docker build . \
+		-f Dockerfile.qemu-user-static \
+		-t mani/qemu-user-static:register
+	docker run --rm --privileged mani/qemu-user-static:register --reset
+
+.PHONY: register