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Support for cross-compiling kernel modules

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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.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Phil Sutter <phil@nwl.cc>
Closes #16924
This commit is contained in:
n0-1
2025-01-06 02:27:19 +01:00
committed by Brian Behlendorf
parent 9f1c5e0b10
commit 307fd0da1f
5 changed files with 15 additions and 2 deletions
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module/Makefile.in
+2
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@@ -55,6 +55,8 @@ modules-Linux:
mkdir -p $(sort $(dir $(zfs-objs) $(zfs-)))
$(MAKE) -C @LINUX_OBJ@ $(if @KERNEL_CC@,CC=@KERNEL_CC@) \
$(if @KERNEL_LD@,LD=@KERNEL_LD@) $(if @KERNEL_LLVM@,LLVM=@KERNEL_LLVM@) \
$(if @KERNEL_CROSS_COMPILE@,CROSS_COMPILE=@KERNEL_CROSS_COMPILE@) \
$(if @KERNEL_ARCH@,ARCH=@KERNEL_ARCH@) \
M="$$PWD" @KERNEL_MAKE@ CONFIG_ZFS=m modules
modules-FreeBSD: