#
# Set things accordingly for a linux kernel
#
-AC_DEFUN([LB_LINUX_VERSION],[
+AC_DEFUN([LB_LINUX_VERSION], [
KMODEXT=".ko"
+AC_SUBST(KMODEXT)
-MODULE_TARGET="SUBDIRS"
makerule="$PWD/build"
-AC_MSG_CHECKING([for external module build support])
+AC_CACHE_CHECK([for external module build target], lb_cv_module_target, [
+lb_cv_module_target=""
+MODULE_TARGET="SUBDIRS"
rm -f build/conftest.i
-LB_LINUX_TRY_MAKE([],[],
+LB_LINUX_TRY_MAKE([], [],
[$makerule LUSTRE_KERNEL_TEST=conftest.i],
[test -s build/conftest.i],
- [
- AC_MSG_RESULT([no])
- ],[
- makerule="_module_$makerule"
+ [lb_cv_module_target="SUBDIRS"], [
MODULE_TARGET="M"
- LB_LINUX_TRY_MAKE([],[],
+ makerule="_module_$PWD/build"
+ LB_LINUX_TRY_MAKE([], [],
[$makerule LUSTRE_KERNEL_TEST=conftest.i],
[test -s build/conftest.i],
- [
- AC_MSG_RESULT([yes])
- ],[
+ [lb_cv_module_target="M"], [
AC_MSG_ERROR([unknown; check config.log for details])
])
])
-
+])
+AS_IF([test -z "$lb_cv_module_target"],
+ [AC_MSG_ERROR([unknown external module build target])],
+[test "x$lb_cv_module_target" = "xM"],
+ [makerule="_module_$PWD/build"])
+MODULE_TARGET=$lb_cv_module_target
AC_SUBST(MODULE_TARGET)
-AC_SUBST(KMODEXT)
])
#
# Determine the Linux kernel version string from the utsrelease
#
AC_DEFUN([LB_LINUX_UTSRELEASE], [
- AC_MSG_CHECKING([kernel source version])
-
- utsrelease1=${LINUX_OBJ}/include/generated/utsrelease.h
- utsrelease2=${LINUX_OBJ}/include/linux/utsrelease.h
- utsrelease3=${LINUX_OBJ}/include/linux/version.h
- AS_IF([test -r ${utsrelease1} && fgrep -q UTS_RELEASE ${utsrelease1}], [
- utsrelease=${utsrelease1}
- ], [test -r ${utsrelease2} && fgrep -q UTS_RELEASE ${utsrelease2}], [
- utsrelease=${utsrelease2}
- ], [test -r ${utsrelease3} && fgrep -q UTS_RELEASE ${utsrelease3}], [
- utsrelease=${utsrelease3}
- ])
-
- AS_IF([test ! -z "${utsrelease}"], [
- UTS_RELEASE=$(awk -F \" '/ UTS_RELEASE / { print [$]2 }' \
- ${utsrelease})
- AS_IF([test -z "$UTS_RELEASE"], [
- AC_MSG_RESULT([Not found])
- AC_MSG_ERROR([*** Cannot determine kernel version.])
- ])
- ], [
- AC_MSG_RESULT([Not found])
- AC_MSG_ERROR([
- *** Cannot find UTS_RELEASE definition.
- *** This is often provided by the kernel-devel package.])
+AC_CACHE_CHECK([for Linux kernel utsrelease], lb_cv_utsrelease, [
+lb_cv_utsrelease=""
+utsrelease1=$LINUX_OBJ/include/generated/utsrelease.h
+utsrelease2=$LINUX_OBJ/include/linux/utsrelease.h
+utsrelease3=$LINUX_OBJ/include/linux/version.h
+AS_IF([test -r $utsrelease1 && fgrep -q UTS_RELEASE $utsrelease1],
+ [utsrelease=$utsrelease1],
+[test -r $utsrelease2 && fgrep -q UTS_RELEASE $utsrelease2],
+ [utsrelease=$utsrelease2],
+[test -r $utsrelease3 && fgrep -q UTS_RELEASE $utsrelease3],
+ [utsrelease=$utsrelease3])
+AS_IF([test -n "$utsrelease"],
+ [lb_cv_utsrelease=$(awk -F \" '/ UTS_RELEASE / { print [$]2 }' $utsrelease)],
+ [AC_MSG_ERROR([
+
+Cannot find UTS_RELEASE definition.
+
+This is often provided by the kernel-devel package.
+])
])
-
- AC_MSG_RESULT([${UTS_RELEASE}])
-
- LINUX_VERSION=${UTS_RELEASE}
- AC_SUBST(LINUX_VERSION)
- LINUXRELEASE=${UTS_RELEASE}
- AC_SUBST(LINUXRELEASE)
])
-
+AS_IF([test -z "$lb_cv_utsrelease"],
+ [AC_MSG_ERROR([Cannot determine Linux kernel version.])])
+LINUXRELEASE=$lb_cv_utsrelease
+AC_SUBST(LINUXRELEASE)
+])
#
# LB_LINUX_RELEASE
#
# get the release version of linux
#
-AC_DEFUN([LB_LINUX_RELEASE],
-[
-LB_LINUX_UTSRELEASE
-
-# ------------ RELEASE --------------------------------
-AC_MSG_CHECKING([for Lustre release])
-AC_ARG_WITH([release],
- AC_HELP_STRING([--with-release=string],
- [set the release string (default=$kvers_YYYYMMDDhhmm)]),
- [RELEASE=$withval],[
- RELEASE=""
- if test -n "$DOWNSTREAM_RELEASE"; then
- RELEASE="${DOWNSTREAM_RELEASE}_"
- fi
- RELEASE="$RELEASE`echo ${LINUXRELEASE} | tr '-' '_'`_$BUILDID"])
-AC_MSG_RESULT($RELEASE)
-AC_SUBST(RELEASE)
-
-# check if the kernel is one from RHEL or SUSE
-AC_MSG_CHECKING([for RedHat kernel version])
- AS_IF([fgrep -q RHEL_RELEASE ${LINUX_OBJ}/include/$VERSION_HDIR/version.h], [
+AC_DEFUN([LB_LINUX_RELEASE], [
+ LB_LINUX_UTSRELEASE
+
+ # Define default states
+ RHEL_KERNEL="no"
+ SUSE_KERNEL="no"
+ UBUNTU_KERNEL="no"
+ # And if any of the above kernels has been detected yet
+ KERNEL_FOUND="no"
+
+ # Check for RedHat first (no need to check KERNEL_FOUND
+ AC_CACHE_CHECK([for RedHat kernel release number], lb_cv_rhel_kernel_version, [
+ lb_cv_rhel_kernel_version=""
+ AS_IF([fgrep -q RHEL_RELEASE $LINUX_OBJ/include/$VERSION_HDIR/version.h], [
+ lb_cv_rhel_kernel_version=$(awk '/ RHEL_MAJOR / { print [$]3 }' \
+ $LINUX_OBJ/include/$VERSION_HDIR/version.h)$(awk \
+ '/ RHEL_MINOR / { print [$]3 }' \
+ $LINUX_OBJ/include/$VERSION_HDIR/version.h)
+ ])
+ ])
+ AS_IF([test -n "$lb_cv_rhel_kernel_version"], [
RHEL_KERNEL="yes"
- RHEL_RELEASE=$(expr 0$(awk -F \" '/ RHEL_RELEASE / { print [$]2 }' \
- ${LINUX_OBJ}/include/$VERSION_HDIR/version.h) + 1)
- KERNEL_VERSION=$(sed -e 's/\(@<:@23@:>@\.@<:@0-9@:>@*\.@<:@0-9@:>@*\).*/\1/' <<< ${LINUXRELEASE})
- RHEL_KERNEL_VERSION=${KERNEL_VERSION}-${RHEL_RELEASE}
- AC_SUBST(RHEL_KERNEL_VERSION)
- AC_MSG_RESULT([${RHEL_KERNEL_VERSION}])
- ], [
- AC_MSG_RESULT([not found])
- LB_LINUX_CONFIG([SUSE_KERNEL],[SUSE_KERNEL="yes"],[])
+ KERNEL_FOUND="yes"
+ RHEL_RELEASE_NO=$lb_cv_rhel_kernel_version
])
-AC_MSG_CHECKING([for kernel module package directory])
-AC_ARG_WITH([kmp-moddir],
- AC_HELP_STRING([--with-kmp-moddir=string],
- [set the kmod updates or extra directory]),
- [KMP_MODDIR=$withval],[
- AS_IF([test x$RHEL_KERNEL = xyes], [KMP_MODDIR="extra"],
- [test x$SUSE_KERNEL = xyes], [KMP_MODDIR="updates"])])
-
-AC_MSG_RESULT($KMP_MODDIR)
-AC_SUBST(KMP_MODDIR)
+ # Check for SuSE
+ AS_IF([test "x$KERNEL_FOUND" = "xno"], [
+ LB_CHECK_CONFIG([SUSE_KERNEL], [
+ SUSE_KERNEL="yes"
+ KERNEL_FOUND="yes"
+ ], [])
+ ])
-moduledir='$(CROSS_PATH)/lib/modules/$(LINUXRELEASE)/$(KMP_MODDIR)/kernel'
-AC_SUBST(moduledir)
+ # Check for Ubuntu
+ AS_IF([test "x$KERNEL_FOUND" = "xno"], [
+ AC_CACHE_CHECK([for Ubuntu kernel signature], lb_cv_ubuntu_kernel_sig, [
+ lb_cv_ubuntu_kernel_sig="no"
+ AS_IF([fgrep -q "CONFIG_VERSION_SIGNATURE \"Ubuntu" $LINUX_OBJ/include/generated/autoconf.h], [
+ lb_cv_ubuntu_kernel_sig="yes"
+ ])
+ ])
+ AS_IF([test "x$lb_cv_ubuntu_kernel_sig" = "xyes"], [
+ UBUNTU_KERNEL="yes"
+ KERNEL_FOUND="yes"
+ ])
+ ])
-modulefsdir='$(moduledir)/fs/$(PACKAGE)'
-AC_SUBST(modulefsdir)
+ # If still no kernel was found, a warning is issued
+ AS_IF([test "x$KERNEL_FOUND" = "xno"], [
+ AC_MSG_WARN([Kernel Distro seems to be neither RedHat, SuSE nor Ubuntu])
+ ])
-modulenetdir='$(moduledir)/net/$(PACKAGE)'
-AC_SUBST(modulenetdir)
+ AC_MSG_CHECKING([for Linux kernel module package directory])
+ AC_ARG_WITH([kmp-moddir],
+ AC_HELP_STRING([--with-kmp-moddir=string],
+ [set the kmod updates or extra directory]),
+ [KMP_MODDIR=$withval
+ IN_KERNEL=''],[
+ AS_IF([test x$RHEL_KERNEL = xyes], [KMP_MODDIR="extra/kernel"],
+ [test x$SUSE_KERNEL = xyes], [KMP_MODDIR="updates/kernel"],
+ [test x$UBUNTU_KERNEL = xyes], [KMP_MODDIR="updates/kernel"],
+ [AC_MSG_WARN([Kernel Distro seems to be neither RedHat, SuSE nor Ubuntu])]
+ )
+ IN_KERNEL="${PACKAGE}"])
+ AC_MSG_RESULT($KMP_MODDIR)
+
+ moduledir="/lib/modules/${LINUXRELEASE}/${KMP_MODDIR}"
+
+ modulefsdir="${moduledir}/fs/${IN_KERNEL}"
+ AC_SUBST(modulefsdir)
+
+ modulenetdir="${moduledir}/net/${IN_KERNEL}"
+ AC_SUBST(modulenetdir)
+
+ AC_SUBST(KMP_MODDIR)
+])
+#
+# LB_LINUX_SYMVERFILE
+#
+# SLES 9 uses a different name for this file - unsure about vanilla kernels
+# around this version, but it matters for servers only.
+AC_DEFUN([LB_LINUX_SYMVERFILE], [
+AC_CACHE_CHECK([for the name of module symbol version file], lb_cv_module_symvers, [
+AS_IF([grep -q Modules.symvers $LINUX/scripts/Makefile.modpost],
+ [lb_cv_module_symvers=Modules.symvers],
+ [lb_cv_module_symvers=Module.symvers])
+])
+SYMVERFILE=$lb_cv_module_symvers
+AC_SUBST(SYMVERFILE)
])
+#
# LB_ARG_REPLACE_PATH(PACKAGE, PATH)
-AC_DEFUN([LB_ARG_REPLACE_PATH],[
- new_configure_args=
- eval "set x $ac_configure_args"
- shift
- for arg; do
- case $arg in
- --with-[$1]=*)
- arg=--with-[$1]=[$2]
- ;;
- *\'*)
- arg=$(printf %s\n ["$arg"] | \
- sed "s/'/'\\\\\\\\''/g")
- ;;
- esac
- dnl AS_VAR_APPEND([new_configure_args], [" '$arg'"])
- new_configure_args="$new_configure_args \"$arg\""
- done
- ac_configure_args=$new_configure_args
+#
+AC_DEFUN([LB_ARG_REPLACE_PATH], [
+new_configure_args=
+eval set -- $ac_configure_args
+for arg; do
+ case $arg in
+ --with-[$1]=*)
+ arg=--with-[$1]=[$2] ;;
+ *\'*)
+ arg=$(printf %s\n ["$arg"] | sed "s/'/'\\\\\\\\''/g") ;;
+ esac
+ dnl AS_VAR_APPEND([new_configure_args], [" '$arg'"])
+ new_configure_args="$new_configure_args '$arg'"
+done
+ac_configure_args=$new_configure_args
])
+#
+# __LB_ARG_CANON_PATH
+#
# this is the work-horse of the next function
+#
AC_DEFUN([__LB_ARG_CANON_PATH], [
[$3]=$(readlink -f $with_$2)
LB_ARG_REPLACE_PATH([$1], $[$3])
])
+#
+# LB_ARG_CANON_PATH
+#
# a front-end for the above function that transforms - and . in the
# PACKAGE portion of --with-PACKAGE into _ suitable for variable names
+#
AC_DEFUN([LB_ARG_CANON_PATH], [
__LB_ARG_CANON_PATH([$1], m4_translit([$1], [-.], [__]), [$2])
])
#
-#
# LB_LINUX_PATH
#
# Find paths for linux, handling kernel-source rpms
#
-AC_DEFUN([LB_LINUX_PATH],
-[# prep some default values
-for DEFAULT_LINUX in /lib/modules/$(uname -r)/{source,build} /usr/src/linux; do
- if readlink -q -e $DEFAULT_LINUX; then
- break
- fi
+AC_DEFUN([LB_LINUX_PATH], [
+for DEFAULT_LINUX in /lib/modules/$(uname -r)/{source,build} /usr/src/linux $(find /usr/src/kernels/ -maxdepth 1 -name @<:@0-9@:>@\* | xargs -r ls -d | tail -n 1); do
+ AS_IF([readlink -q -e $DEFAULT_LINUX >/dev/null], [break])
done
if test "$DEFAULT_LINUX" = "/lib/modules/$(uname -r)/source"; then
PATHS="/lib/modules/$(uname -r)/build"
fi
PATHS+=" $DEFAULT_LINUX"
for DEFAULT_LINUX_OBJ in $PATHS; do
- if readlink -q -e $DEFAULT_LINUX_OBJ; then
- break
- fi
+ AS_IF([readlink -q -e $DEFAULT_LINUX_OBJ >/dev/null], [break])
done
+
AC_MSG_CHECKING([for Linux sources])
AC_ARG_WITH([linux],
AC_HELP_STRING([--with-linux=path],
AC_SUBST(LINUX)
# -------- check for linux --------
-LB_CHECK_FILE([$LINUX],[],
+LB_CHECK_FILE([$LINUX], [],
[AC_MSG_ERROR([Kernel source $LINUX could not be found.])])
# -------- linux objects (for 2.6) --
-AC_MSG_CHECKING([for Linux objects dir])
+AC_MSG_CHECKING([for Linux objects])
AC_ARG_WITH([linux-obj],
AC_HELP_STRING([--with-linux-obj=path],
- [set path to Linux objects dir (default=/lib/modules/$(uname -r)/build,/usr/src/linux)]),
+ [set path to Linux objects (default=/lib/modules/$(uname -r)/build,/usr/src/linux)]),
[LB_ARG_CANON_PATH([linux-obj], [LINUX_OBJ])],
[LINUX_OBJ=$DEFAULT_LINUX_OBJ])
-
AC_MSG_RESULT([$LINUX_OBJ])
AC_SUBST(LINUX_OBJ)
[set path to Linux .conf (default=$LINUX_OBJ/.config)])],
[LB_ARG_CANON_PATH([linux-config], [LINUX_CONFIG])],
[LINUX_CONFIG=$LINUX_OBJ/.config])
+
+# -------- check if .config exists --
+LB_CHECK_FILE([$LINUX_CONFIG], [],
+ [AC_MSG_ERROR([
+
+Kernel config could not be found.
+
+If you are building from a kernel-source rpm consult build/README.kernel-source
+])
+])
AC_SUBST(LINUX_CONFIG)
LB_CHECK_FILE([/boot/kernel.h],
[Use a different kernel version header. Consult build/README.kernel-source for details.]),
[LB_ARG_CANON_PATH([kernel-source-header], [KERNEL_SOURCE_HEADER])])
-# ------------ .config exists ----------------
-LB_CHECK_FILE([$LINUX_CONFIG],[],
- [AC_MSG_ERROR([Kernel config could not be found. If you are building from a kernel-source rpm consult build/README.kernel-source])])
-
# ----------- make dep run? ------------------
# at 2.6.19 # $LINUX/include/linux/config.h is removed
-# and at more old has only one line
-# include <autoconf.h>
-LB_CHECK_FILE([$LINUX_OBJ/include/generated/autoconf.h],[AUTOCONF_HDIR=generated],
- [LB_CHECK_FILE([$LINUX_OBJ/include/linux/autoconf.h],[AUTOCONF_HDIR=linux],
- [AC_MSG_ERROR([Run make config in $LINUX.])])])
- AC_SUBST(AUTOCONF_HDIR)
-LB_CHECK_FILE([$LINUX_OBJ/include/linux/version.h], [VERSION_HDIR=linux],
+# and at more old has only one line include <autoconf.h>
+#
+LB_CHECK_FILE([$LINUX_OBJ/include/generated/autoconf.h],
+ [AUTOCONF_HDIR=generated],
+ [LB_CHECK_FILE([$LINUX_OBJ/include/linux/autoconf.h],
+ [AUTOCONF_HDIR=linux],
+ [AC_MSG_ERROR([Run make config in $LINUX.])])])
+AC_SUBST(AUTOCONF_HDIR)
+
+LB_CHECK_FILE([$LINUX_OBJ/include/linux/version.h],
+ [VERSION_HDIR=linux],
[LB_CHECK_FILE([$LINUX_OBJ/include/generated/uapi/linux/version.h],
[VERSION_HDIR=generated/uapi/linux],
- [AC_MSG_ERROR([Run make config in $LINUX.])])
- ])
- AC_SUBST(VERSION_HDIR)
+ [AC_MSG_ERROR([Run make config in $LINUX.])])])
+AC_SUBST(VERSION_HDIR)
# ----------- kconfig.h exists ---------------
# kernel 3.1, $LINUX/include/linux/kconfig.h is added
# see kernel commit 2a11c8ea20bf850b3a2c60db8c2e7497d28aba99
-LB_CHECK_FILE([$LINUX_OBJ/include/linux/kconfig.h],
- [CONFIG_INCLUDE=include/linux/kconfig.h],
+#
+LB_CHECK_FILE([$LINUX/include/linux/kconfig.h],
+ [CONFIG_INCLUDE=$LINUX/include/linux/kconfig.h],
[CONFIG_INCLUDE=include/$AUTOCONF_HDIR/autoconf.h])
- AC_SUBST(CONFIG_INCLUDE)
+AC_SUBST(CONFIG_INCLUDE)
# ------------ rhconfig.h includes runtime-generated bits --
-# red hat kernel-source checks
+# RedHat kernel-source checks
# we know this exists after the check above. if the user
# tarred up the tree and ran make dep etc. in it, then
# version.h gets overwritten with a standard linux one.
-if grep rhconfig $LINUX_OBJ/include/$VERSION_HDIR/version.h >/dev/null ; then
+AS_IF([grep rhconfig $LINUX_OBJ/include/$VERSION_HDIR/version.h >/dev/null], [
# This is a clean kernel-source tree, we need to
- # enable extensive workarounds to get this to build
- # modules
- LB_CHECK_FILE([$KERNEL_SOURCE_HEADER],
- [if test $KERNEL_SOURCE_HEADER = '/boot/kernel.h' ; then
- AC_MSG_WARN([Using /boot/kernel.h from RUNNING kernel.])
- AC_MSG_WARN([If this is not what you want, use --with-kernel-source-header.])
- AC_MSG_WARN([Consult build/README.kernel-source for details.])
- fi],
- [AC_MSG_ERROR([$KERNEL_SOURCE_HEADER not found. Consult build/README.kernel-source for details.])])
+ # enable extensive workarounds to get this to build modules
+ LB_CHECK_FILE([$KERNEL_SOURCE_HEADER], [
+ AS_IF([test $KERNEL_SOURCE_HEADER = '/boot/kernel.h'],
+ [AC_MSG_WARN([
+
+Using /boot/kernel.h from RUNNING kernel.
+
+If this is not what you want, use --with-kernel-source-header.
+Consult build/README.kernel-source for details.
+])
+ ])],
+ [AC_MSG_ERROR([
+
+$KERNEL_SOURCE_HEADER not found.
+
+Consult build/README.kernel-source for details.
+])
+ ])
EXTRA_KCFLAGS="-include $KERNEL_SOURCE_HEADER $EXTRA_KCFLAGS"
-fi
+])
# this is needed before we can build modules
-LB_LINUX_CROSS
LB_LINUX_VERSION
# --- check that we can build modules at all
-AC_MSG_CHECKING([that modules can be built at all])
-LB_LINUX_TRY_COMPILE([],[],[
- AC_MSG_RESULT([yes])
-],[
- AC_MSG_RESULT([no])
- AC_MSG_WARN([Consult config.log for details.])
- AC_MSG_WARN([If you are trying to build with a kernel-source rpm, consult build/README.kernel-source])
- AC_MSG_ERROR([Kernel modules cannot be built.])
+LB_CHECK_COMPILE([that modules can be built at all], build_modules,
+ [], [], [], [
+ AC_MSG_ERROR([
+
+Kernel modules cannot be built. Consult config.log for details.
+
+If you are trying to build with a kernel-source rpm,
+consult build/README.kernel-source
+])
])
LB_LINUX_RELEASE
]) # end of LB_LINUX_PATH
-# LB_LINUX_SYMVERFILE
-# SLES 9 uses a different name for this file - unsure about vanilla kernels
-# around this version, but it matters for servers only.
-AC_DEFUN([LB_LINUX_SYMVERFILE],
- [AC_MSG_CHECKING([name of module symbol version file])
- if grep -q Modules.symvers $LINUX/scripts/Makefile.modpost ; then
- SYMVERFILE=Modules.symvers
- else
- SYMVERFILE=Module.symvers
- fi
- AC_MSG_RESULT($SYMVERFILE)
- AC_SUBST(SYMVERFILE)
-])
-
-#
-# LB_LINUX_CROSS
-#
-# check for cross compilation
-#
-AC_DEFUN([LB_LINUX_CROSS],
- [AC_MSG_CHECKING([for cross compilation])
-AS_IF([test "x$cross_compiling" = xno], [AC_MSG_RESULT([no])],
- [case $host_vendor in
- # The K1OM architecture is an extension of the x86 architecture
- # and in MPSS 2.1 it's defined in $host_vendor. But in MPSS 3.x
- # it's defined in $host_arch. So, try to support both case.
- k1om | mpss)
- AC_MSG_RESULT([Intel(R) Xeon Phi(TM)])
- CC_TARGET_ARCH=`$CC -v 2>&1 | grep Target: | sed -e 's/Target: //'`
- AC_SUBST(CC_TARGET_ARCH)
- if test \( $CC_TARGET_ARCH != x86_64-k1om-linux \
- -a $CC_TARGET_ARCH != k1om-mpss-linux \)
- then
- AC_MSG_ERROR([Cross compiler not found in PATH.])
- fi
- CROSS_VARS="ARCH=k1om CROSS_COMPILE=${CC_TARGET_ARCH}-"
- CROSS_PATH="${CROSS_PATH:=/opt/lustre/${VERSION}/${CC_TARGET_ARCH}}"
- CCAS=$CC
- # need to produce special section for debuginfo extraction
- LDFLAGS="${LDFLAGS} -Wl,--build-id"
- EXTRA_KLDFLAGS="${EXTRA_KLDFLAGS} -Wl,--build-id"
- if test x$enable_server != xno ; then
- AC_MSG_WARN([Disabling server (not supported for k1om architecture).])
- enable_server='no'
- fi
- ;;
- *)
- AC_MSG_RESULT([yes, but no changes])
- ;;
- esac
+#
+# LC_MODULE_LOADING
+#
+# after 2.6.28 CONFIG_KMOD is removed, and only CONFIG_MODULES remains
+# so we test if request_module is implemented or not
+AC_DEFUN([LC_MODULE_LOADING], [
+AC_CACHE_CHECK([if Linux kernel module loading is possible], lb_cv_module_loading, [
+LB_LINUX_TRY_MAKE([
+ #include <linux/kmod.h>
+], [
+ int myretval=ENOSYS ;
+ return myretval;
+], [
+ $makerule LUSTRE_KERNEL_TEST=conftest.i
+], [dnl
+ grep request_module build/conftest.i |dnl
+ grep -v `grep "int myretval=" build/conftest.i |dnl
+ cut -d= -f2 | cut -d" " -f1`dnl
+ >/dev/null dnl
+], [lb_cv_module_loading="yes"], [lb_cv_module_loading="no"])
+])
+AS_IF([test "$lb_cv_module_loading" = yes],
+ [AC_DEFINE(HAVE_MODULE_LOADING_SUPPORT, 1,
+ [kernel module loading is possible])],
+ [AC_MSG_WARN([
+
+Kernel module loading support is highly recommended.
+
+])
])
-AC_SUBST(CROSS_VARS)
-AC_SUBST(CROSS_PATH)
])
+#
+# LB_PROG_LINUX
+#
+# linux tests
+#
+AC_DEFUN([LB_PROG_LINUX], [
+LB_LINUX_PATH
+LB_LINUX_SYMVERFILE
+
+LB_CHECK_CONFIG([MODULES], [], [
+ AC_MSG_ERROR([
+
+module support is required to build Lustre kernel modules.
+])
+ ])
+
+LB_CHECK_CONFIG([MODVERSIONS])
+
+LB_CHECK_CONFIG([KALLSYMS], [], [
+ AC_MSG_ERROR([
+
+Lustre requires that CONFIG_KALLSYMS is enabled in your kernel.
+])
+ ])
+
+# 2.6.28
+LC_MODULE_LOADING
+])
+
+#
+# LB_USES_DPKG
+#
+# Determine if the target is a dpkg system or rpm
+#
+AC_DEFUN([LB_USES_DPKG], [
+AC_CACHE_CHECK([if this distro uses dpkg], lb_cv_uses_dpkg, [
+lb_cv_uses_dpkg="no"
+AS_CASE([$(lsb_release -i -s 2>/dev/null)],
+ [Ubuntu | Debian], [lb_cv_uses_dpkg="yes"])
+])
+uses_dpkg=$lb_cv_uses_dpkg
+])
+
+#
+# LB_CHECK_EXPORT
+#
+# check symbol exported or not
+# $1 - symbol
+# $2 - file(s) for find.
+# $3 - do 'yes'
+# $4 - do 'no'
+#
+# 2.6 based kernels - put modversion info into $LINUX/Module.modvers or check
+#
+AC_DEFUN([LB_CHECK_EXPORT], [
+AS_VAR_PUSHDEF([lb_export], [lb_cv_export_$1])dnl
+AC_CACHE_CHECK([if Linux kernel exports '$1'], lb_export, [
+AS_VAR_SET([lb_export], [no])
+AS_IF([grep -q -E '[[[:space:]]]$1[[[:space:]]]' $LINUX_OBJ/$SYMVERFILE 2>/dev/null],
+ [AS_VAR_SET([lb_export], [yes])],
+ [for file in $2; do
+ AS_IF([grep -q -E "EXPORT_SYMBOL.*\($1\)" "$LINUX/$file" 2>/dev/null], [
+ AS_VAR_SET([lb_export], [yes])
+ break
+ ])
+ done])
+])
+AS_VAR_IF([lb_export], [yes], [$3], [$4])[]dnl
+AS_VAR_POPDEF([lb_export])dnl
+]) # LB_CHECK_EXPORT
+
+#
+# LB_CHECK_CONFIG
+#
+# check if a given config option is defined
+# $1 - CONFIG_<name>
+# $2 - do 'yes'
+# $3 - do 'no'
+#
+AC_DEFUN([LB_CHECK_CONFIG], [
+LB_CHECK_COMPILE([if Linux kernel was built with CONFIG_$1],
+config_$1, [
+ #include <$AUTOCONF_HDIR/autoconf.h>
+], [
+ #ifndef CONFIG_$1
+ #error CONFIG_$1 not #defined
+ #endif
+], [$2], [$3])
+]) # LB_CHECK_CONFIG
+
+#
+# LB_CHECK_CONFIG_IM
+#
+# check if a given config option is builtin or as module
+# $1 - CONFIG_<name> or CONFIG_<name>_MODULE
+# $2 - do 'yes'
+# $3 - do 'no'
+#
+AC_DEFUN([LB_CHECK_CONFIG_IM], [
+LB_CHECK_COMPILE([if Linux kernel was built with CONFIG_$1 in or as module],
+config_im_$1, [
+ #include <$AUTOCONF_HDIR/autoconf.h>
+], [
+ #if !(defined(CONFIG_$1) || defined(CONFIG_$1_MODULE))
+ #error CONFIG_$1 and CONFIG_$1_MODULE not #defined
+ #endif
+], [$2], [$3])
+]) # LB_CHECK_CONFIG_IM
+
+#
# these are like AC_TRY_COMPILE, but try to build modules against the
# kernel, inside the build directory
+#
+#
# LB_LANG_PROGRAM(C)([PROLOGUE], [BODY])
# --------------------------------------
+#
m4_define([LB_LANG_PROGRAM],
[
#include <linux/kernel.h>
+#include <linux/module.h>
$1
int
main (void)
$2
;
return 0;
-}])
+};
+MODULE_LICENSE("GPL");])
#
# LB_LINUX_COMPILE_IFELSE
#
# like AC_COMPILE_IFELSE
#
+# $1 - AC_LANG_SOURCE()
+# $2 - make target
+# $3 - check command
+# $4 - do 'yes'
+# $5 - do 'no'
+#
AC_DEFUN([LB_LINUX_COMPILE_IFELSE],
-[m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
+[m4_ifvaln([$1], [AC_LANG_CONFTEST([AC_LANG_SOURCE([$1])])])dnl
rm -f build/conftest.o build/conftest.mod.c build/conftest.ko
-SUBARCH=$(echo $target_cpu | sed -e 's/powerpc64/powerpc/' -e 's/x86_64/x86/' -e 's/i.86/x86/' -e 's/k1om/x86/')
-AS_IF([AC_TRY_COMMAND(cp conftest.c build && make -d [$2] ${LD:+"LD=$LD"} CC="$CC" -f $PWD/build/Makefile LUSTRE_LINUX_CONFIG=$LINUX_CONFIG LINUXINCLUDE="$EXTRA_LNET_INCLUDE -I$LINUX/arch/$SUBARCH/include -I$LINUX/arch/$SUBARCH/include/generated -Iinclude -I$LINUX/include -Iinclude2 -I$LINUX/include/uapi -I$LINUX/include/generated -I$LINUX/arch/$SUBARCH/include/uapi -Iarch/$SUBARCH/include/generated/uapi -I$LINUX/include/uapi -Iinclude/generated/uapi -include $CONFIG_INCLUDE" -o tmp_include_depends -o scripts -o include/config/MARKER -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $CROSS_VARS $MODULE_TARGET=$PWD/build) >/dev/null && AC_TRY_COMMAND([$3])],
+SUBARCH=$(echo $target_cpu | sed -e 's/powerpc.*/powerpc/' -e 's/ppc.*/powerpc/' -e 's/x86_64/x86/' -e 's/i.86/x86/' -e 's/k1om/x86/' -e 's/aarch64.*/arm64/')
+AS_IF([AC_TRY_COMMAND(cp conftest.c build && make -d [$2] LDFLAGS= ${LD:+LD="$LD"} CC="$CC" -f $PWD/build/Makefile LUSTRE_LINUX_CONFIG=$LINUX_CONFIG LINUXINCLUDE="$EXTRA_CHECK_INCLUDE -I$LINUX/arch/$SUBARCH/include -Iinclude -Iarch/$SUBARCH/include/generated -I$LINUX/include -Iinclude2 -I$LINUX/include/uapi -Iinclude/generated -I$LINUX/arch/$SUBARCH/include/uapi -Iarch/$SUBARCH/include/generated/uapi -I$LINUX/include/uapi -Iinclude/generated/uapi ${SPL_OBJ:+-include $SPL_OBJ/spl_config.h} ${ZFS_OBJ:+-include $ZFS_OBJ/zfs_config.h} ${SPL:+-I$SPL -I$SPL/include } ${ZFS:+-I$ZFS -I$ZFS/include} -include $CONFIG_INCLUDE" -o tmp_include_depends -o scripts -o include/config/MARKER -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $MODULE_TARGET=$PWD/build) >/dev/null && AC_TRY_COMMAND([$3])],
[$4],
[_AC_MSG_LOG_CONFTEST
m4_ifvaln([$5],[$5])dnl])
])
#
-# LB_LINUX_ARCH
-#
-# Determine the kernel's idea of the current architecture
-#
-AC_DEFUN([LB_LINUX_ARCH],
- [AC_MSG_CHECKING([Linux kernel architecture])
- AS_IF([rm -f $PWD/build/arch
- make -s --no-print-directory echoarch -f $PWD/build/Makefile \
- LUSTRE_LINUX_CONFIG=$LINUX_CONFIG -C $LINUX $CROSS_VARS \
- ARCHFILE=$PWD/build/arch && LINUX_ARCH=`cat $PWD/build/arch`],
- [AC_MSG_RESULT([$LINUX_ARCH])],
- [AC_MSG_ERROR([Could not determine the kernel architecture.])])
- rm -f build/arch])
-
-#
# LB_LINUX_TRY_COMPILE
#
# like AC_TRY_COMPILE
#
-AC_DEFUN([LB_LINUX_TRY_COMPILE],
-[LB_LINUX_COMPILE_IFELSE(
+AC_DEFUN([LB_LINUX_TRY_COMPILE], [
+LB_LINUX_COMPILE_IFELSE(
[AC_LANG_SOURCE([LB_LANG_PROGRAM([[$1]], [[$2]])])],
- [modules],
- [test -s build/conftest.o],
- [$3], [$4])])
-
-#
-# LB_LINUX_CONFIG
-#
-# check if a given config option is defined
-#
-AC_DEFUN([LB_LINUX_CONFIG],[
- AC_MSG_CHECKING([if Linux was built with CONFIG_$1])
- LB_LINUX_TRY_COMPILE([
- #include <$AUTOCONF_HDIR/autoconf.h>
- ],[
- #ifndef CONFIG_$1
- #error CONFIG_$1 not #defined
- #endif
- ],[
- AC_MSG_RESULT([yes])
- $2
- ],[
- AC_MSG_RESULT([no])
- $3
- ])
-])
-
-#
-# LB_LINUX_CONFIG_IM
-#
-# check if a given config option is builtin or as module
-#
-AC_DEFUN([LB_LINUX_CONFIG_IM],[
- AC_MSG_CHECKING([if Linux was built with CONFIG_$1 in or as module])
- LB_LINUX_TRY_COMPILE([
- #include <$AUTOCONF_HDIR/autoconf.h>
- ],[
- #if !(defined(CONFIG_$1) || defined(CONFIG_$1_MODULE))
- #error CONFIG_$1 and CONFIG_$1_MODULE not #defined
- #endif
- ],[
- AC_MSG_RESULT([yes])
- $2
- ],[
- AC_MSG_RESULT([no])
- $3
- ])
+ [modules], [test -s build/conftest.o],
+ [$3], [$4])
])
#
#
# like LB_LINUX_TRY_COMPILE, but with different arguments
#
-AC_DEFUN([LB_LINUX_TRY_MAKE],
- [LB_LINUX_COMPILE_IFELSE(
- [AC_LANG_SOURCE([LB_LANG_PROGRAM([[$1]], [[$2]])])],
- [$3], [$4], [$5], [$6]
- )]
-)
-
-#
-# LB_CONFIG_COMPAT_RDMA
-#
-AC_DEFUN([LB_CONFIG_COMPAT_RDMA],
-[AC_MSG_CHECKING([whether to use Compat RDMA])
-# set default
-AC_ARG_WITH([o2ib],
- AC_HELP_STRING([--with-o2ib=path],
- [build o2iblnd against path]),
- [
- case $with_o2ib in
- yes) O2IBPATHS="$LINUX $LINUX/drivers/infiniband"
- ENABLEO2IB=2
- ;;
- no) ENABLEO2IB=0
- ;;
- *) O2IBPATHS=$with_o2ib
- ENABLEO2IB=3
- ;;
- esac
- ],[
- O2IBPATHS="$LINUX $LINUX/drivers/infiniband"
- ENABLEO2IB=1
- ])
-if test $ENABLEO2IB -eq 0; then
- AC_MSG_RESULT([no])
-else
- o2ib_found=false
- for O2IBPATH in $O2IBPATHS; do
- if test \( -f ${O2IBPATH}/include/rdma/rdma_cm.h -a \
- -f ${O2IBPATH}/include/rdma/ib_cm.h -a \
- -f ${O2IBPATH}/include/rdma/ib_verbs.h -a \
- -f ${O2IBPATH}/include/rdma/ib_fmr_pool.h \); then
- o2ib_found=true
- break
- fi
- done
- compatrdma_found=false
- if $o2ib_found; then
- if test \( -f ${O2IBPATH}/include/linux/compat-2.6.h \); then
- compatrdma_found=true
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_COMPAT_RDMA, 1, [compat rdma found])
- else
- AC_MSG_RESULT([no])
- fi
- fi
-fi
+AC_DEFUN([LB_LINUX_TRY_MAKE], [
+LB_LINUX_COMPILE_IFELSE(
+ [AC_LANG_SOURCE([LB_LANG_PROGRAM([[$1]], [[$2]])])],
+ [$3], [$4], [$5], [$6])
])
#
-# LB_CONFIG_OFED_BACKPORTS
-#
-# include any OFED backport headers in all compile commands
-# NOTE: this does only include the backport paths, not the OFED headers
-# adding the OFED headers is done in the lnet portion
-AC_DEFUN([LB_CONFIG_OFED_BACKPORTS],
-[AC_MSG_CHECKING([whether to use any OFED backport headers])
-if test $ENABLEO2IB -eq 0; then
- AC_MSG_RESULT([no])
-else
- if ! $o2ib_found; then
- AC_MSG_RESULT([no])
- case $ENABLEO2IB in
- 1) ;;
- 2) AC_MSG_ERROR([kernel OpenIB gen2 headers not present]);;
- 3) AC_MSG_ERROR([bad --with-o2ib path]);;
- *) AC_MSG_ERROR([internal error]);;
- esac
- else
- if ! $compatrdma_found; then
- if test -f $O2IBPATH/config.mk; then
- . $O2IBPATH/config.mk
- elif test -f $O2IBPATH/ofed_patch.mk; then
- . $O2IBPATH/ofed_patch.mk
- fi
- else
- case $RHEL_KERNEL_VERSION in
- 2.6.32-358*)
- EXTRA_LNET_INCLUDE="$EXTRA_LNET_INCLUDE -DCONFIG_COMPAT_RHEL_6_4";;
- esac
- fi
- if test -n "$BACKPORT_INCLUDES"; then
- OFED_BACKPORT_PATH="$O2IBPATH/${BACKPORT_INCLUDES/*\/kernel_addons/kernel_addons}/"
- EXTRA_LNET_INCLUDE="-I$OFED_BACKPORT_PATH $EXTRA_LNET_INCLUDE"
- AC_MSG_RESULT([yes])
- else
- AC_MSG_RESULT([no])
- fi
- fi
-fi
-])
-
-# LC_MODULE_LOADING
-# after 2.6.28 CONFIG_KMOD is removed, and only CONFIG_MODULES remains
-# so we test if request_module is implemented or not
-AC_DEFUN([LC_MODULE_LOADING],
-[AC_MSG_CHECKING([if kernel module loading is possible])
-LB_LINUX_TRY_MAKE([
- #include <linux/kmod.h>
-],[
- int myretval=ENOSYS ;
- return myretval;
-],[
- $makerule LUSTRE_KERNEL_TEST=conftest.i
-],[dnl
- grep request_module build/conftest.i |dnl
- grep -v `grep "int myretval=" build/conftest.i |dnl
- cut -d= -f2 | cut -d" " -f1`dnl
- >/dev/null dnl
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_MODULE_LOADING_SUPPORT, 1,
- [kernel module loading is possible])
-],[
- AC_MSG_RESULT(no)
- AC_MSG_WARN([])
- AC_MSG_WARN([Kernel module loading support is highly recommended.])
- AC_MSG_WARN([])
-])
+# LB_CHECK_COMPILE
+# $1 - checking message
+# $2 - variable name
+# $3 - header
+# $4 - body
+# $5 - do 'yes'
+# $6 - do 'no'
+#
+AC_DEFUN([LB_CHECK_COMPILE], [
+AS_VAR_PUSHDEF([lb_compile], [lb_cv_compile_$2])dnl
+AC_CACHE_CHECK([$1], lb_compile, [
+ LB_LINUX_TRY_COMPILE([$3], [$4],
+ [AS_VAR_SET([lb_compile], [yes])],
+ [AS_VAR_SET([lb_compile], [no])])
])
+AS_VAR_IF([lb_compile], [yes], [$5], [$6])[]dnl
+AS_VAR_POPDEF([lb_compile])dnl
+]) # LB_CHECK_COMPILE
#
-# LB_PROG_LINUX
-#
-# linux tests
-#
-AC_DEFUN([LB_PROG_LINUX],
-[LB_LINUX_PATH
-LB_LINUX_ARCH
-LB_LINUX_SYMVERFILE
-
-
-LB_LINUX_CONFIG([MODULES],[],[
- AC_MSG_ERROR([module support is required to build Lustre kernel modules.])
-])
-
-LB_LINUX_CONFIG([MODVERSIONS])
-
-LB_LINUX_CONFIG([KALLSYMS],[],[
- AC_MSG_ERROR([Lustre requires that CONFIG_KALLSYMS is enabled in your kernel.])
-])
-
-# 2.6.28
-LC_MODULE_LOADING
-
-LB_CONFIG_COMPAT_RDMA
-
-# it's ugly to be doing anything with OFED outside of the lnet module, but
-# this has to be done here so that the backports path is set before all of
-# the LN_PROG_LINUX checks are done
-LB_CONFIG_OFED_BACKPORTS
-])
-
-#
-# LB_CHECK_SYMBOL_EXPORT
-# check symbol exported or not
-# $1 - symbol
-# $2 - file(s) for find.
-# $3 - do 'yes'
-# $4 - do 'no'
-#
-# 2.6 based kernels - put modversion info into $LINUX/Module.modvers
-# or check
-AC_DEFUN([LB_CHECK_SYMBOL_EXPORT],
-[AC_MSG_CHECKING([if Linux was built with symbol $1 exported])
-grep -q -E '[[[:space:]]]$1[[[:space:]]]' $LINUX/$SYMVERFILE 2>/dev/null
-rc=$?
-if test $rc -ne 0; then
- export=0
- for file in $2; do
- grep -q -E "EXPORT_SYMBOL.*\($1\)" "$LINUX/$file" 2>/dev/null
- rc=$?
- if test $rc -eq 0; then
- export=1
- break;
- fi
- done
- if test $export -eq 0; then
- AC_MSG_RESULT([no])
- $4
- else
- AC_MSG_RESULT([yes])
- $3
- fi
-else
- AC_MSG_RESULT([yes])
- $3
-fi
-])
-
+# LB_CHECK_LINUX_HEADER
#
# Like AC_CHECK_HEADER but checks for a kernel-space header
#
-m4_define([LB_CHECK_LINUX_HEADER],
-[AS_VAR_PUSHDEF([ac_Header], [ac_cv_header_$1])dnl
-AC_CACHE_CHECK([for $1], ac_Header,
- [LB_LINUX_COMPILE_IFELSE([LB_LANG_PROGRAM([@%:@include <$1>])],
- [modules],
- [test -s build/conftest.o],
- [AS_VAR_SET(ac_Header, [yes])],
- [AS_VAR_SET(ac_Header, [no])])])
-AS_IF([test AS_VAR_GET(ac_Header) = yes], [$2], [$3])[]dnl
-AS_VAR_POPDEF([ac_Header])dnl
-])
-
-#
-# LB_USES_DPKG
-#
-# Determine if the target is a dpkg system or rpm
-#
-AC_DEFUN([LB_USES_DPKG],
-[
-AC_MSG_CHECKING([if this distro uses dpkg])
-case `lsb_release -i -s 2>/dev/null` in
- Ubuntu | Debian)
- AC_MSG_RESULT([yes])
- uses_dpkg=yes
- ;;
- *)
- AC_MSG_RESULT([no])
- uses_dpkg=no
- ;;
-esac
+m4_define([LB_CHECK_LINUX_HEADER], [
+AS_VAR_PUSHDEF([lb_header], [lb_cv_header_$1])dnl
+AC_CACHE_CHECK([for $1], lb_header, [
+ LB_LINUX_COMPILE_IFELSE([LB_LANG_PROGRAM([@%:@include <$1>])],
+ [modules], [test -s build/conftest.o],
+ [AS_VAR_SET([lb_header], [yes])],
+ [AS_VAR_SET([lb_header], [no])])
])
+AS_VAR_IF([lb_header], [yes], [$2], [$3])[]dnl
+AS_VAR_POPDEF([lb_header])dnl
+]) # LB_CHECK_LINUX_HEADER
git://git.whamcloud.com / fs / lustre-release.git / blobdiff