c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2026-05-22 18:40:43 +03:00
Code Issues Packages Projects Releases Wiki Activity

Support for cross-compiling kernel modules

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files
config/kernel.m4
+5
View File
@@ -681,11 +681,16 @@ AC_DEFUN([ZFS_LINUX_COMPILE], [
building kernel modules])
AC_ARG_VAR([KERNEL_LLVM], [Binary option to
build kernel modules with LLVM/CLANG toolchain])
AC_ARG_VAR([KERNEL_CROSS_COMPILE], [Cross compile prefix
for kernel module builds])
AC_ARG_VAR([KERNEL_ARCH], [Architecture to build kernel modules for])
AC_TRY_COMMAND([
KBUILD_MODPOST_NOFINAL="$5" KBUILD_MODPOST_WARN="$6"
make modules -k -j$TEST_JOBS ${KERNEL_CC:+CC=$KERNEL_CC}
${KERNEL_LD:+LD=$KERNEL_LD} ${KERNEL_LLVM:+LLVM=$KERNEL_LLVM}
CONFIG_MODULES=y CFLAGS_MODULE=-DCONFIG_MODULES
${KERNEL_CROSS_COMPILE:+CROSS_COMPILE=$KERNEL_CROSS_COMPILE}
${KERNEL_ARCH:+ARCH=$KERNEL_ARCH}
-C $LINUX_OBJ $ARCH_UM M=$PWD/$1 >$1/build.log 2>&1])
AS_IF([AC_TRY_COMMAND([$2])], [$3], [$4])
])
config/zfs-build.m4
+2
View File
@@ -393,6 +393,8 @@ AC_DEFUN([ZFS_AC_RPM], [
RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kernel_cc KERNEL_CC=$(KERNEL_CC)"'
RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kernel_ld KERNEL_LD=$(KERNEL_LD)"'
RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kernel_llvm KERNEL_LLVM=$(KERNEL_LLVM)"'
RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kernel_cross_compile KERNEL_CROSS_COMPILE=$(KERNEL_CROSS_COMPILE)"'
RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kernel_arch KERNEL_ARCH=$(KERNEL_ARCH)"'
])
RPM_DEFINE_DKMS=''