if test -s $LINUX_OBJ/include/$AUTOCONF_HDIR/utsrelease.h ; then
LINUXRELEASEHEADER=$AUTOCONF_HDIR/utsrelease.h
else
- LINUXRELEASEHEADER=linux/version.h
+ LINUXRELEASEHEADER=$VERSION_HDIR/version.h
fi
LB_LINUX_TRY_MAKE([
#include <$LINUXRELEASEHEADER>
rm -f build/conftest.i
if test x$LINUXRELEASE = x ; then
AC_MSG_RESULT([unknown])
- AC_MSG_ERROR([Could not determine Linux release version from linux/version.h.])
+ AC_MSG_ERROR([Could not determine Linux release version from $LINUXRELEASEHEADER.])
fi
AC_MSG_RESULT([$LINUXRELEASE])
AC_SUBST(LINUXRELEASE)
# check is redhat/suse kernels
AC_MSG_CHECKING([that RedHat kernel])
LB_LINUX_TRY_COMPILE([
- #include <linux/version.h>
+ #include <$VERSION_HDIR/version.h>
],[
#ifndef RHEL_RELEASE_CODE
#error "not redhat kernel"
[LB_CHECK_FILE([$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
# 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
[AC_MSG_CHECKING([for cross compilation])
CROSS_VARS=
CROSS_PATH=
-case $target_vendor in
- # The K1OM architecture is an extension of the x86 architecture.
- # So, the $target_arch is x86_64.
- k1om)
- AC_MSG_RESULT([Intel(R) Xeon Phi(TM)])
- CC_TARGET_ARCH=`$CC -v 2>&1 | grep Target: | sed -e 's/Target: //'`
- if test $CC_TARGET_ARCH != x86_64-$target_vendor-linux ; then
- AC_MSG_ERROR([Cross compiler not found in PATH.])
- fi
- CROSS_VARS="ARCH=$target_vendor CROSS_COMPILE=x86_64-$target_vendor-linux-"
- CROSS_PATH=${CROSS_PATH:=/opt/intel/mic/lustre/device-k1om}
- CCAS=$CC
- # need to produce special section for debuginfo extraction
- LDFLAGS="${LDFLAGS} -Wl,--build-id"
- EXTRA_KLDFLAGS="${EXTRA_KLDFLAGS} -Wl,--build-id"
- if test x$enable_server = xyes ; then
- AC_MSG_WARN([Disabling server (not supported for x86_64-$target_vendor-linux).])
- enable_server='no'
- fi
- ;;
- *)
- AC_MSG_RESULT([no])
- ;;
-esac
+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.
+ # So, the $host_arch is x86_64.
+ k1om)
+ AC_MSG_RESULT([Intel(R) Xeon Phi(TM)])
+ CC_TARGET_ARCH=`$CC -v 2>&1 | grep Target: | sed -e 's/Target: //'`
+ if test $CC_TARGET_ARCH != x86_64-$host_vendor-linux ; then
+ AC_MSG_ERROR([Cross compiler not found in PATH.])
+ fi
+ CROSS_VARS="ARCH=$host_vendor CROSS_COMPILE=x86_64-$host_vendor-linux-"
+ CROSS_PATH=${CROSS_PATH:=/opt/intel/mic/lustre/device-k1om}
+ CCAS=$CC
+ # need to produce special section for debuginfo extraction
+ LDFLAGS="${LDFLAGS} -Wl,--build-id"
+ EXTRA_KLDFLAGS="${EXTRA_KLDFLAGS} -Wl,--build-id"
+ if test x$enable_server = xyes ; then
+ AC_MSG_WARN([Disabling server (not supported for x86_64-$host_vendor-linux).])
+ enable_server='no'
+ fi
+ ;;
+ *)
+ AC_MSG_RESULT([yes, but no changes])
+ ;;
+ esac
+ ])
AC_SUBST(CROSS_VARS)
AC_SUBST(CROSS_PATH)
])
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" $CROSS_VARS $MODULE_TARGET=$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/')
+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])