Support for cross-compiling kernel modules #16924
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behlendorf
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Jan 3, 2025
In order to correctly cross-compile, one has to pass ARCH and CROSS_COMPILE make flags to kernel module build calls. Facilitate this in the same way as for custom CC flag by recognizing KERNEL_-prefixed configure environment variables of same name. Signed-off-by: Phil Sutter <[email protected]>
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Jan 4, 2025
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Status: Accepted
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Jan 6, 2025
In order to correctly cross-compile, one has to pass ARCH and CROSS_COMPILE make flags to kernel module build calls. Facilitate this in the same way as for custom CC flag by recognizing KERNEL_-prefixed configure environment variables of same name. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Phil Sutter <[email protected]> Closes openzfs#16924
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In order to correctly cross-compile, one has to pass ARCH and CROSS_COMPILE
make flags to kernel module build calls. Facilitate this in the same way as for
custom CC flag by recognizing KERNEL_-prefixed configure environment variables
of same name.
Motivation and Context
Compiling ZFS modules in a buildroot-like environment seems not possible without this.
Description
See above.
How Has This Been Tested?
Successfully compiled for 32bit ARM in OpenADK.
Types of changes
Checklist:
Signed-off-by.