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glfs/kernel-config/Makefile

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uefi: Use new kernel config Fix an issue causing kernel-config.py not to process indented "source" directive in Kconfig for this.
2023-07-30 01:43:02 +08:00
INPUT = $(wildcard */*.toml */*/*.toml */*/*/*.toml)
Add kernel-config infrastructure The kernel-config.py script takes a toml file containing a set of kernel configuration key-value pairs. Then it parses the Kconfig files in a kernel source tree and render the given configuration as a LFS-style <screen> in a separate XML file. The XML file can be used in the book with xinclude. Some "features": 1. The lines are limited to 80 columns. If the text of the configuration option is too long, it will be trimmed; if the symbolic name of the option cannot fit in this line, a separate line will be used for it. 2. If a configuration option is given but it does not exist in Kconfig files, the script will abort immediately. This helps catching removed options. 3. The script also aborts immediately if a configuration option is illegal, for example setting an option to 'M' while it cannot be a module. 4. The infrastructure is not wired into the main Makefile. It's because not all editors have the latest kernel tree, and even if they do the locations of the kernel tree are still different. To update the generated XML files, use "make -C kernel-config KERNEL_TREE=/sources/linux-x.y.z". Backword incompatible change: The script no longer outputs "CONFIG_" prefix for the symbolic name. It really does not make too much sense to waste 7 characters here because it's a common prefix for all options! A limitation: The script does not really validate the configuration. Generally validating the configuration requires to solve the 3-CNF-SAT problem, which is NP-complete.
2023-07-29 23:48:10 +08:00
OUTPUT = $(patsubst %.toml, ../%-kernel.xml, $(INPUT))
ifeq ($(KERNEL_TREE),)
$(error "must set KERNEL_TREE=/path/to/kernel/source")
endif
introduction: Use new kernel configuration rendering in conventions
2023-07-31 20:59:44 +08:00
all: $(OUTPUT) ../introduction/welcome/conventions-kernel.xml
Add kernel-config infrastructure The kernel-config.py script takes a toml file containing a set of kernel configuration key-value pairs. Then it parses the Kconfig files in a kernel source tree and render the given configuration as a LFS-style <screen> in a separate XML file. The XML file can be used in the book with xinclude. Some "features": 1. The lines are limited to 80 columns. If the text of the configuration option is too long, it will be trimmed; if the symbolic name of the option cannot fit in this line, a separate line will be used for it. 2. If a configuration option is given but it does not exist in Kconfig files, the script will abort immediately. This helps catching removed options. 3. The script also aborts immediately if a configuration option is illegal, for example setting an option to 'M' while it cannot be a module. 4. The infrastructure is not wired into the main Makefile. It's because not all editors have the latest kernel tree, and even if they do the locations of the kernel tree are still different. To update the generated XML files, use "make -C kernel-config KERNEL_TREE=/sources/linux-x.y.z". Backword incompatible change: The script no longer outputs "CONFIG_" prefix for the symbolic name. It really does not make too much sense to waste 7 characters here because it's a common prefix for all options! A limitation: The script does not really validate the configuration. Generally validating the configuration requires to solve the 3-CNF-SAT problem, which is NP-complete.
2023-07-29 23:48:10 +08:00
kernel.version: s-kernel-version; @true
s-kernel-version: Makefile kernel_version.py
./kernel_version.py $(KERNEL_TREE) > tmp-kernel.version
if ! diff tmp-kernel.version $@ 2>/dev/null >/dev/null; then \
mv tmp-kernel.version kernel.version; \
fi
touch s-kernel-version
../%-kernel.xml: %.toml kernel-config.py kernel_version.py kernel.version
./kernel-config.py $(KERNEL_TREE) $< > $@
introduction: Use new kernel configuration rendering in conventions
2023-07-31 20:59:44 +08:00
../introduction/welcome/conventions-kernel.xml: kernel-config.py testdata/Kconfig testdata/config.toml.example
./kernel-config.py testdata testdata/config.toml.example > $@
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