mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2025-10-26 18:05:04 +03:00
Fix Linux kernel directories detection
Most modern Linux distributions have separate locations for bare
source and prebuilt ("build") files. Additionally, there are `source`
and `build` symlinks in `/lib/modules/$(KERNEL_VERSION)` pointing to
them. The order of directory search is now:
- `configure` command line values if both `--with-linux` and
`--with-linux-obj` were defined
- If only `--with-linux` was defined, `--with-linux-obj` is assumed
to have the same value as `--with-linux`
- If neither `--with-linux` nor `--with-linux-obj` were defined
autodetection is used:
- `/lib/modules/$(uname -r)/{source,build}` respectively, if exist
- The first directory in `/lib/modules` with the highest version
number according to `sort -V` which contains `source` and `build`
symlinks/directories
- The first directory matching `/usr/src/kernels/*` and
`/usr/src/linux-*` with the highest version number according to
`sort -V`. Here the source and prebuilt directories are assumed
to be the same.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes #9935
Closes #13096
This commit is contained in:
Damian Szuberski
GitHub
parent
52a36bd41a
commit
72f3c8b130
105
config/kernel.m4
105
config/kernel.m4
@ -280,6 +280,35 @@ AC_DEFUN([ZFS_AC_MODULE_SYMVERS], [
|
||||
dnl #
|
||||
dnl # Detect the kernel to be built against
|
||||
dnl #
|
||||
dnl # Most modern Linux distributions have separate locations for bare
|
||||
dnl # source (source) and prebuilt (build) files. Additionally, there are
|
||||
dnl # `source` and `build` symlinks in `/lib/modules/$(KERNEL_VERSION)`
|
||||
dnl # pointing to them. The directory search order is now:
|
||||
dnl #
|
||||
dnl # - `configure` command line values if both `--with-linux` and
|
||||
dnl # `--with-linux-obj` were defined
|
||||
dnl #
|
||||
dnl # - If only `--with-linux` was defined, `--with-linux-obj` is assumed
|
||||
dnl # to have the same value as `--with-linux`
|
||||
dnl #
|
||||
dnl # - If neither `--with-linux` nor `--with-linux-obj` were defined
|
||||
dnl # autodetection is used:
|
||||
dnl #
|
||||
dnl # - `/lib/modules/$(uname -r)/{source,build}` respectively, if exist.
|
||||
dnl #
|
||||
dnl # - If only `/lib/modules/$(uname -r)/build` exists, it is assumed
|
||||
dnl # to be both source and build directory.
|
||||
dnl #
|
||||
dnl # - The first directory in `/lib/modules` with the highest version
|
||||
dnl # number according to `sort -V` which contains both `source` and
|
||||
dnl # `build` symlinks/directories. If module directory contains only
|
||||
dnl # `build` component, it is assumed to be both source and build
|
||||
dnl # directory.
|
||||
dnl #
|
||||
dnl # - Last resort: the first directory matching `/usr/src/kernels/*`
|
||||
dnl # and `/usr/src/linux-*` with the highest version number according
|
||||
dnl # to `sort -V` is assumed to be both source and build directory.
|
||||
dnl #
|
||||
AC_DEFUN([ZFS_AC_KERNEL], [
|
||||
AC_ARG_WITH([linux],
|
||||
AS_HELP_STRING([--with-linux=PATH],
|
||||
@ -291,25 +320,52 @@ AC_DEFUN([ZFS_AC_KERNEL], [
|
||||
[Path to kernel build objects]),
|
||||
[kernelbuild="$withval"])
|
||||
|
||||
AC_MSG_CHECKING([kernel source directory])
|
||||
AS_IF([test -z "$kernelsrc"], [
|
||||
AS_IF([test -e "/lib/modules/$(uname -r)/source"], [
|
||||
headersdir="/lib/modules/$(uname -r)/source"
|
||||
sourcelink=$(readlink -f "$headersdir")
|
||||
AC_MSG_CHECKING([kernel source and build directories])
|
||||
AS_IF([test -n "$kernelsrc" && test -z "$kernelbuild"], [
|
||||
kernelbuild="$kernelsrc"
|
||||
], [test -z "$kernelsrc"], [
|
||||
AS_IF([test -e "/lib/modules/$(uname -r)/source" && \
|
||||
test -e "/lib/modules/$(uname -r)/build"], [
|
||||
src="/lib/modules/$(uname -r)/source"
|
||||
build="/lib/modules/$(uname -r)/build"
|
||||
], [test -e "/lib/modules/$(uname -r)/build"], [
|
||||
headersdir="/lib/modules/$(uname -r)/build"
|
||||
sourcelink=$(readlink -f "$headersdir")
|
||||
build="/lib/modules/$(uname -r)/build"
|
||||
src="$build"
|
||||
], [
|
||||
sourcelink=$(ls -1d /usr/src/kernels/* \
|
||||
/usr/src/linux-* \
|
||||
2>/dev/null | grep -v obj | tail -1)
|
||||
src=
|
||||
|
||||
for d in $(ls -1d /lib/modules/* 2>/dev/null | sort -Vr); do
|
||||
if test -e "$d/source" && test -e "$d/build"; then
|
||||
src="$d/source"
|
||||
build="$d/build"
|
||||
break
|
||||
fi
|
||||
|
||||
if test -e "$d/build"; then
|
||||
src="$d/build"
|
||||
build="$d/build"
|
||||
break
|
||||
fi
|
||||
done
|
||||
|
||||
# the least reliable method
|
||||
if test -z "$src"; then
|
||||
src=$(ls -1d /usr/src/kernels/* /usr/src/linux-* \
|
||||
2>/dev/null | grep -v obj | sort -Vr | head -1)
|
||||
build="$src"
|
||||
fi
|
||||
])
|
||||
|
||||
AS_IF([test -n "$sourcelink" && test -e ${sourcelink}], [
|
||||
kernelsrc=`readlink -f ${sourcelink}`
|
||||
AS_IF([test -n "$src" && test -e "$src"], [
|
||||
kernelsrc=$(readlink -e "$src")
|
||||
], [
|
||||
kernelsrc="[Not found]"
|
||||
])
|
||||
AS_IF([test -n "$build" && test -e "$build"], [
|
||||
kernelbuild=$(readlink -e "$build")
|
||||
], [
|
||||
kernelbuild="[Not found]"
|
||||
])
|
||||
], [
|
||||
AS_IF([test "$kernelsrc" = "NONE"], [
|
||||
kernsrcver=NONE
|
||||
@ -317,30 +373,19 @@ AC_DEFUN([ZFS_AC_KERNEL], [
|
||||
withlinux=yes
|
||||
])
|
||||
|
||||
AC_MSG_RESULT([done])
|
||||
AC_MSG_CHECKING([kernel source directory])
|
||||
AC_MSG_RESULT([$kernelsrc])
|
||||
AS_IF([test ! -d "$kernelsrc"], [
|
||||
AC_MSG_CHECKING([kernel build directory])
|
||||
AC_MSG_RESULT([$kernelbuild])
|
||||
AS_IF([test ! -d "$kernelsrc" || test ! -d "$kernelbuild"], [
|
||||
AC_MSG_ERROR([
|
||||
*** Please make sure the kernel devel package for your distribution
|
||||
*** is installed and then try again. If that fails, you can specify the
|
||||
*** location of the kernel source with the '--with-linux=PATH' option.])
|
||||
*** location of the kernel source and build with the '--with-linux=PATH' and
|
||||
*** '--with-linux-obj=PATH' options respectively.])
|
||||
])
|
||||
|
||||
AC_MSG_CHECKING([kernel build directory])
|
||||
AS_IF([test -z "$kernelbuild"], [
|
||||
AS_IF([test x$withlinux != xyes -a -e "/lib/modules/$(uname -r)/build"], [
|
||||
kernelbuild=`readlink -f /lib/modules/$(uname -r)/build`
|
||||
], [test -d ${kernelsrc}-obj/${target_cpu}/${target_cpu}], [
|
||||
kernelbuild=${kernelsrc}-obj/${target_cpu}/${target_cpu}
|
||||
], [test -d ${kernelsrc}-obj/${target_cpu}/default], [
|
||||
kernelbuild=${kernelsrc}-obj/${target_cpu}/default
|
||||
], [test -d `dirname ${kernelsrc}`/build-${target_cpu}], [
|
||||
kernelbuild=`dirname ${kernelsrc}`/build-${target_cpu}
|
||||
], [
|
||||
kernelbuild=${kernelsrc}
|
||||
])
|
||||
])
|
||||
AC_MSG_RESULT([$kernelbuild])
|
||||
|
||||
AC_MSG_CHECKING([kernel source version])
|
||||
utsrelease1=$kernelbuild/include/linux/version.h
|
||||
utsrelease2=$kernelbuild/include/linux/utsrelease.h
|
||||
|
||||
Loading…
Reference in New Issue
Block a user