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ea67bad278
I update my kernel frequently and may not be running a kernel with headers installed. That always leads me to: 1) run `meson test -C build` 2) Oh, crap, it fails: no kernel headers 3) Find whatever kernel header is installed and point KDIR to it We can do better and tell KDIR=any to use whatever it finds. Signed-off-by: Lucas De Marchi <lucas.de.marchi@gmail.com> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Link: https://github.com/kmod-project/kmod/pull/384
37 lines
1.3 KiB
Makefile
37 lines
1.3 KiB
Makefile
# When KDIR is not manually set, use the MODULE_DIRECTORY for the pre-existent
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# kmod, not the one being built, to figure out how to get to the kernel
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# sources/headers of the currently running kernel for building our own dummy
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# kernel modules. The final location of the modules may change later by
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# scripts/setup-rootfs.sh that assembles a per-test-rootfs.
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#
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# KDIR=any can also be used to use any installed headers, not necessarily the
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# currently running one. This makes it easier to handle distros that
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# install modules in a different dir even for minor updates.
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MODULE_DIRECTORY := $(shell pkg-config --variable module_directory kmod)
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ifeq ($(MODULE_DIRECTORY),)
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MODULE_DIRECTORY := /lib/modules
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endif
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ifndef KDIR
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KDIR := $(MODULE_DIRECTORY)/$$(uname -r)/build
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else ifeq ($(KDIR),any)
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KDIR := $(shell find $(MODULE_DIRECTORY) -maxdepth 1 -mindepth 1 -type d | sort -V | tail -n1)/build
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endif
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ARCH_SPECIFIC_MODULES := mod-simple-x86_64.ko mod-simple-i386.ko mod-simple-sparc64.ko
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default: modules
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mod-simple-%.ko: mod-simple-%.c Makefile.arch
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$(eval arch=$(patsubst mod-simple-%.ko,%,$@))
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$(MAKE) KDIR=$(KDIR_$(arch)) ARCH=$(arch) CROSS_COMPILE=$(CROSS_COMPILE_$(arch)) -f Makefile.arch
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modules:
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$(MAKE) -C $(KDIR) M=$$PWD modules
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arch-modules: $(ARCH_SPECIFIC_MODULES)
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clean:
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$(MAKE) -C $(KDIR) M=$$PWD clean
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