c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2026-05-22 02:27:36 +03:00
Code Issues Packages Projects Releases Wiki Activity

Add support for $KERNEL_{CC,LD,LLVM} variables

Browse Source 
Currently, $(CC), $(LD), and $(LLVM) variables aren't passed to kbuild
while building modules.  This causes modules to build with the default
GNU GCC toolchain and prevents experimenting with other toolchains such
as CLANG/LLVM.  It can also lead to build failure if the CFLAGS/LDFLAGS
passed are incompatible with gcc/ld.

Pass $KERNEL_CC, $KERNEL_LD, and $KERNEL_LLVM as $(CC), $(LD), and
$(LLVM), respectively, to kbuild for each that is defined in the
environment.  This should take care of the majority of alternative
toolchain use cases.

Reviewed-by: Damian Szuberski <szuberskidamian@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Peter Levine <plevine457@gmail.com>
Closes #13046
This commit is contained in:
Peter Levine
2022-02-02 00:44:59 -05:00
committed by Tony Hutter
parent 52aae04c6a
commit c7fcf00917
2 changed files with 10 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
config/kernel.m4
+7 -1
View File
@@ -601,9 +601,15 @@ dnl #
dnl # Used internally by ZFS_LINUX_TEST_{COMPILE,MODPOST}
dnl #
AC_DEFUN([ZFS_LINUX_COMPILE], [
AC_ARG_VAR([KERNEL_CC], [C compiler for
building kernel modules])
AC_ARG_VAR([KERNEL_LD], [Linker for
building kernel modules])
AC_ARG_VAR([KERNEL_LLVM], [Binary option to
build kernel modules with LLVM/CLANG toolchain])
AC_TRY_COMMAND([
KBUILD_MODPOST_NOFINAL="$5" KBUILD_MODPOST_WARN="$6"
make modules -k -j$TEST_JOBS -C $LINUX_OBJ $ARCH_UM
make modules -k -j$TEST_JOBS ${KERNEL_CC:+CC=$KERNEL_CC} ${KERNEL_LD:+LD=$KERNEL_LD} ${KERNEL_LLVM:+LLVM=$KERNEL_LLVM} -C $LINUX_OBJ $ARCH_UM
M=$PWD/$1 >$1/build.log 2>&1])
AS_IF([AC_TRY_COMMAND([$2])], [$3], [$4])
])