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LU-4036 autoconf: don't check ext4 src when disable server
[fs/lustre-release.git] / config / lustre-build-linux.m4
index ec77262..49f06bd 100644 (file)
@@ -33,44 +33,57 @@ AC_SUBST(KMODEXT)
 ])
 
 #
+# LB_LINUX_UTSRELEASE
+#
+# 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_MSG_RESULT([${UTS_RELEASE}])
+
+       LINUX_VERSION=${UTS_RELEASE}
+       AC_SUBST(LINUX_VERSION)
+       LINUXRELEASE=${UTS_RELEASE}
+       AC_SUBST(LINUXRELEASE)
+])
+
+
+#
 # LB_LINUX_RELEASE
 #
 # get the release version of linux
 #
 AC_DEFUN([LB_LINUX_RELEASE],
-[LINUXRELEASE=
-rm -f build/conftest.i
-AC_MSG_CHECKING([for Linux release])
-if test -s $LINUX_OBJ/include/$AUTOCONF_HDIR/utsrelease.h ; then
-       LINUXRELEASEHEADER=$AUTOCONF_HDIR/utsrelease.h
-else
-       LINUXRELEASEHEADER=linux/version.h
-fi
-LB_LINUX_TRY_MAKE([
-       #include <$LINUXRELEASEHEADER>
-],[
-       char *LINUXRELEASE;
-       LINUXRELEASE=UTS_RELEASE;
-],[
-       $makerule LUSTRE_KERNEL_TEST=conftest.i
-],[
-       test -s build/conftest.i
-],[
-       # LINUXRELEASE="UTS_RELEASE"
-       eval $(grep "LINUXRELEASE=" build/conftest.i)
-],[
-       AC_MSG_RESULT([unknown])
-       AC_MSG_ERROR([Could not preprocess test program.  Consult config.log for details.])
-])
-rm -f build/conftest.i
-if test x$LINUXRELEASE = x ; then
-       AC_MSG_RESULT([unknown])
-       AC_MSG_ERROR([Could not determine Linux release version from linux/version.h.])
-fi
-AC_MSG_RESULT([$LINUXRELEASE])
-AC_SUBST(LINUXRELEASE)
+[
+LB_LINUX_UTSRELEASE
 
-moduledir='/lib/modules/'$LINUXRELEASE/updates/kernel
+moduledir='$(CROSS_PATH)/lib/modules/$(LINUXRELEASE)/updates/kernel'
 AC_SUBST(moduledir)
 
 modulefsdir='$(moduledir)/fs/$(PACKAGE)'
@@ -81,7 +94,7 @@ AC_SUBST(modulenetdir)
 
 # ------------ RELEASE --------------------------------
 AC_MSG_CHECKING([for Lustre release])
-AC_ARG_WITH([release],
+AC_ARG_WITH([release],[
        AC_HELP_STRING([--with-release=string],
                       [set the release string (default=$kvers_YYYYMMDDhhmm)]),
        [RELEASE=$withval],
@@ -89,27 +102,25 @@ AC_ARG_WITH([release],
        if test -n "$DOWNSTREAM_RELEASE"; then
                RELEASE="${DOWNSTREAM_RELEASE}_"
        fi
-       RELEASE="$RELEASE`echo ${LINUXRELEASE} | tr '-' '_'`_$BUILDID")
+       RELEASE="$RELEASE`echo ${LINUXRELEASE} | tr '-' '_'`_$BUILDID"
+])
 AC_MSG_RESULT($RELEASE)
 AC_SUBST(RELEASE)
 
-# check is redhat/suse kernels
-AC_MSG_CHECKING([that RedHat kernel])
-LB_LINUX_TRY_COMPILE([
-               #include <linux/version.h>
-       ],[
-               #ifndef RHEL_RELEASE_CODE
-               #error "not redhat kernel"
-               #endif
-       ],[
+# 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], [
                RHEL_KERNEL="yes"
-               AC_MSG_RESULT([yes])
-       ],[
-               AC_MSG_RESULT([no])
-])
-
-LB_LINUX_CONFIG([SUSE_KERNEL],[SUSE_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"],[])
+       ])
 ])
 
 # LB_ARG_REPLACE_PATH(PACKAGE, PATH)
@@ -222,8 +233,12 @@ 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],[],
-       [AC_MSG_ERROR([Run make config in $LINUX.])])
+LB_CHECK_FILE([$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)
 
 # ----------- kconfig.h exists ---------------
 # kernel 3.1, $LINUX/include/linux/kconfig.h is added
@@ -240,7 +255,7 @@ LB_CHECK_FILE([$LINUX_OBJ/include/linux/kconfig.h],
 # 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/linux/version.h >/dev/null ; then
+if grep rhconfig $LINUX_OBJ/include/$VERSION_HDIR/version.h >/dev/null ; then
        # This is a clean kernel-source tree, we need to
        # enable extensive workarounds to get this to build
        # modules
@@ -255,6 +270,7 @@ if grep rhconfig $LINUX_OBJ/include/linux/version.h >/dev/null ; then
 fi
 
 # this is needed before we can build modules
+LB_LINUX_CROSS
 LB_LINUX_VERSION
 
 # --- check that we can build modules at all
@@ -285,6 +301,49 @@ AC_DEFUN([LB_LINUX_SYMVERFILE],
        AC_SUBST(SYMVERFILE)
 ])
 
+#
+# LB_LINUX_CROSS
+#
+# check for cross compilation
+#
+AC_DEFUN([LB_LINUX_CROSS],
+       [AC_MSG_CHECKING([for cross compilation])
+CROSS_VARS=
+CROSS_PATH=
+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
+       ])
+AC_SUBST(CROSS_VARS)
+AC_SUBST(CROSS_PATH)
+])
+
 # these are like AC_TRY_COMPILE, but try to build modules against the
 # kernel, inside the build directory
 
@@ -312,7 +371,8 @@ $2
 AC_DEFUN([LB_LINUX_COMPILE_IFELSE],
 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
 rm -f build/conftest.o build/conftest.mod.c build/conftest.ko
-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/`echo $target_cpu|sed -e 's/powerpc64/powerpc/' -e 's/x86_64/x86/' -e 's/i.86/x86/'`/include -I$LINUX/arch/`echo $target_cpu|sed -e 's/ppc.*/powerpc/' -e 's/x86_64/x86/' -e 's/i.86/x86/'`/include/generated -I$LINUX_OBJ/include -I$LINUX/include -I$LINUX_OBJ/include2 -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([$3])],
+SUBARCH=$(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])],
        [$4],
        [_AC_MSG_LOG_CONFTEST
 m4_ifvaln([$5],[$5])dnl])
@@ -328,7 +388,7 @@ 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 $LINUX \
+                     LUSTRE_LINUX_CONFIG=$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.])])
@@ -473,11 +533,16 @@ else
                esac
        else
                if ! $compatrdma_found; then
-                       if test -f $O2IBPATH/config.mk; 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}/"