23 lines
966 B
Makefile
23 lines
966 B
Makefile
# This is a standard makefile for building a kernel module.
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# It looks a bit backwards compared to a normal makefile, but that's because
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# the kernel supplies its own sub-makefile that we use to build the module.
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#
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# The M= option tells the kernel's makefile where to find the module's source
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# files, and the -C option sets the context directory for make.
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#
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# The obj-m variable tells the kernel's makefile what the module's object file
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# should be called. In this case, it's demo_module.o. This is how the sub-makefile
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# infers the name of the module's source file.
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#
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# This build is highly sensitive to compiler version, and requires the system gcc
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# to be the same version as the gcc that built the current kernel.
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#
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# For more info, see: https://www.kernel.org/doc/html/latest/kbuild/modules.html
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obj-m = demo_module.o
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all:
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make -C /lib/modules/$(shell uname -r)/build/ M=$(PWD) modules
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clean:
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make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
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