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build: Use Docker image cross compiling for M1 Mac #81

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Nov 12, 2021
Merged

build: Use Docker image cross compiling for M1 Mac #81

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11 changes: 10 additions & 1 deletion Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,15 @@ INITRAMFS_PATH := build/$(IMAGE_FILENAME).initramfs
export INIT_SCRIPT := $(shell tools/inspect-init-in-docker-image.py $(IMAGE))
endif

# Set the platform name for docker image cross compiling.
ifeq ($(ARCH),x64)
docker_platform = linux/amd64
endif

ifeq ($(docker_platform),)
$(error "docker_platform is not set for $(ARCH)!")
endif

topdir := $(PWD)
build_mode := $(if $(RELEASE),release,debug)
target_json := kernel/arch/$(ARCH)/$(ARCH).json
Expand Down Expand Up @@ -171,7 +180,7 @@ clean:
#
build/kerla.initramfs: $(wildcard initramfs/*) $(wildcard initramfs/*/*) Makefile
$(PROGRESS) "BUILD" initramfs
cd initramfs && docker buildx build -t kerla-initramfs .
cd initramfs && docker buildx build --platform $(docker_platform) -t kerla-initramfs .
$(PROGRESS) "EXPORT" initramfs
mkdir -p build
$(PYTHON3) tools/docker2initramfs.py $@ kerla-initramfs
Expand Down