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https://github.com/linuxkit/linuxkit.git
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f44421042e
Building debug kernels (with additional run time checks and debugging) was broken a few commits back. This adds back support for building debug kernels. In addition, it builds and uploads debug kernels for selected kernel series (4.9.x LTS and latest stable). The tag for these kernels has a "_dbg" suffix. Update documentation. Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
70 lines
2.5 KiB
Makefile
70 lines
2.5 KiB
Makefile
# This builds the supported LinuxKit kernels. Kernels are wrapped up
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# in a minimal toybox container, which contains the bzImage, a tar
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# ball with modules and the kernel source.
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#
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# Each kernel is pushed to hub twice, once as
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# linuxkit/kernel:<kernel>.<major>.<minor>-<hash> and once as
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# inuxkit/kernel:<kernel>.<major>.x. The <hash> is the git tree hash
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# of the current directory. The build will only rebuild the kernel
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# image if the git tree hash changed.
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# Git tree hash of this directory. Override to force build
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HASH?=$(shell git ls-tree HEAD -- ../$(notdir $(CURDIR)) | awk '{print $$3}')
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# Name on Hub
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IMAGE:=kernel
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.PHONY: check tag push sign
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# Targets:
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# build: builds all kernels
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# push: pushes all tagged kernel images to hub
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# sign: sign and push all kernel images to hub
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build:
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push:
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sign:
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# A template for defining kernel build
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# Arguments:
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# $1: Full kernel version, e.g., 4.9.22
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# $2: Kernel "series", e.g., 4.9.x
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# $3: Build a debug kernel (used as suffix for image)
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# This defines targets like:
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# build_4.9.x, push_4.9.x and sign_4.9.x and adds them as dependencies
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# to the global targets
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# Set $3 to "_dbg", to build debug kernels. This defines targets like
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# build_4.9.x_dbg and adds "_dbg" to the hub image name.
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define kernel
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build_$(2)$(3): Dockerfile Makefile $(wildcard patches-$(2)/*) kernel_config-$(2) kernel_config.debug
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docker pull linuxkit/$(IMAGE):$(1)$(3)-$(HASH) || \
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docker build \
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--build-arg KERNEL_VERSION=$(1) \
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--build-arg KERNEL_SERIES=$(2) \
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--build-arg DEBUG=$(3) \
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--no-cache -t linuxkit/$(IMAGE):$(1)$(3)-$(HASH) .
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push_$(2)$(3): build_$(2)$(3)
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docker pull linuxkit/$(IMAGE):$(1)$(3)-$(HASH) || \
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(docker push linuxkit/$(IMAGE):$(1)$(3)-$(HASH) && \
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docker tag linuxkit/$(IMAGE):$(1)$(3)-$(HASH) linuxkit/$(IMAGE):$(2)$(3) && \
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docker push linuxkit/$(IMAGE):$(2)$(3))
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sign_$(2)$(3): build_$(2)$(3)
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DOCKER_CONTENT_TRUST=1 docker pull linuxkit/$(IMAGE):$(1)$(3)-$(HASH) || \
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(DOCKER_CONTENT_TRUST=1 docker push linuxkit/$(IMAGE):$(1)$(3)-$(HASH) && \
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docker tag linuxkit/$(IMAGE):$(1)$(3)-$(HASH) linuxkit/$(IMAGE):$(2)$(3) && \
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DOCKER_CONTENT_TRUST=1 docker push linuxkit/$(IMAGE):$(2)$(3))
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build: build_$(2)$(3)
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push: push_$(2)$(3)
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sign: sign_$(2)$(3)
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endef
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#
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# Build Targets
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# Debug targets only for latest stable and LTS stable
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#
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$(eval $(call kernel,4.10.13,4.10.x))
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$(eval $(call kernel,4.10.13,4.10.x,_dbg))
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$(eval $(call kernel,4.9.25,4.9.x))
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$(eval $(call kernel,4.9.25,4.9.x,_dbg))
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$(eval $(call kernel,4.4.64,4.4.x))
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