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|
AC_DEFUN([ZFS_AC_CONFIG], [
AC_ARG_WITH([zfs-config],
AS_HELP_STRING([--with-config=CONFIG],
[Config file 'kernel|user|lustre']),
[zfsconfig="$withval"])
AC_MSG_CHECKING([zfs config file])
if test -z "$zfsconfig" || test ! -r config/$zfsconfig; then
AC_MSG_RESULT([no])
AC_MSG_ERROR([
*** Please specify one of the valid config files located
*** in ./config/ with the '--with-zfs-config=CONFIG' option])
fi
AC_MSG_RESULT([$zfsconfig]);
. ./config/$zfsconfig
TOPDIR=`/bin/pwd`
ZFSDIR=${TOPDIR}/$BUILDDIR
LIBDIR=$ZFSDIR/lib
CMDDIR=$ZFSDIR/zcmd
AC_SUBST(TOPDIR)
AC_SUBST(ZFSDIR)
AC_SUBST(LIBDIR)
AC_SUBST(CMDDIR)
])
AC_DEFUN([ZFS_AC_KERNEL], [
ver=`uname -r`
AC_ARG_WITH([linux],
AS_HELP_STRING([--with-linux=PATH],
[Path to kernel source]),
[kernelsrc="$withval"; kernelbuild="$withval"])
AC_ARG_WITH(linux-obj,
AS_HELP_STRING([--with-linux-obj=PATH],
[Path to kernel build objects]),
[kernelbuild="$withval"])
AC_MSG_CHECKING([kernel source directory])
if test -z "$kernelsrc"; then
kernelbuild=
sourcelink=/lib/modules/${ver}/source
buildlink=/lib/modules/${ver}/build
if test -e $sourcelink; then
kernelsrc=`(cd $sourcelink; /bin/pwd)`
fi
if test -e $buildlink; then
kernelbuild=`(cd $buildlink; /bin/pwd)`
fi
if test -z "$kernelsrc"; then
kernelsrc=$kernelbuild
fi
if test -z "$kernelsrc" -o -z "$kernelbuild"; then
AC_MSG_RESULT([Not found])
AC_MSG_ERROR([
*** Please specify the location of the kernel source
*** with the '--with-linux=PATH' option])
fi
fi
AC_MSG_RESULT([$kernelsrc])
AC_MSG_CHECKING([kernel build directory])
AC_MSG_RESULT([$kernelbuild])
AC_MSG_CHECKING([kernel source version])
if test -r $kernelbuild/include/linux/version.h &&
fgrep -q UTS_RELEASE $kernelbuild/include/linux/version.h; then
kernsrcver=`(echo "#include <linux/version.h>";
echo "kernsrcver=UTS_RELEASE") |
cpp -I $kernelbuild/include |
grep "^kernsrcver=" | cut -d \" -f 2`
elif test -r $kernelbuild/include/linux/utsrelease.h &&
fgrep -q UTS_RELEASE $kernelbuild/include/linux/utsrelease.h; then
kernsrcver=`(echo "#include <linux/utsrelease.h>";
echo "kernsrcver=UTS_RELEASE") |
cpp -I $kernelbuild/include |
grep "^kernsrcver=" | cut -d \" -f 2`
fi
if test -z "$kernsrcver"; then
AC_MSG_RESULT([Not found])
AC_MSG_ERROR([
*** Cannot determine the version of the linux kernel source.
*** Please prepare the kernel before running this script])
fi
AC_MSG_RESULT([$kernsrcver])
kmoduledir=${INSTALL_MOD_PATH}/lib/modules/$kernsrcver
LINUX=${kernelsrc}
LINUX_OBJ=${kernelbuild}
AC_SUBST(LINUX)
AC_SUBST(LINUX_OBJ)
AC_SUBST(kmoduledir)
])
AC_DEFUN([ZFS_AC_SPL], [
AC_ARG_WITH([spl],
AS_HELP_STRING([--with-spl=PATH],
[Path to spl source]),
[splsrc="$withval"; splbuild="$withval"])
AC_ARG_WITH([spl-obj],
AS_HELP_STRING([--with-spl-obj=PATH],
[Path to spl build objects]),
[splbuild="$withval"])
AC_MSG_CHECKING([spl source directory])
if test -z "$splsrc"; then
splbuild=
sourcelink=/tmp/`whoami`/spl
buildlink=/tmp/`whoami`/spl
if test -e $sourcelink; then
splsrc=`(cd $sourcelink; /bin/pwd)`
fi
if test -e $buildlink; then
splbuild=`(cd $buildlink; /bin/pwd)`
fi
if test -z "$splsrc"; then
splsrc=$splbuild
fi
fi
if test -z "$splsrc" -o -z "$splbuild"; then
sourcelink=/lib/modules/${ver}/source
buildlink=/lib/modules/${ver}/build
if test -e $sourcelink; then
splsrc=`(cd $sourcelink; /bin/pwd)`
fi
if test -e $buildlink; then
splbuild=`(cd $buildlink; /bin/pwd)`
fi
if test -z "$splsrc"; then
splsrc=$splbuild
fi
if test -z "$splsrc" -o -z "$splbuild"; then
AC_MSG_RESULT([Not found])
AC_MSG_ERROR([
*** Please specify the location of the spl source
*** with the '--with-spl=PATH' option])
fi
fi
AC_MSG_RESULT([$splsrc])
AC_MSG_CHECKING([spl build directory])
AC_MSG_RESULT([$splbuild])
AC_MSG_CHECKING([spl source version])
if test -r $splbuild/spl_config.h &&
fgrep -q VERSION $splbuild/spl_config.h; then
splsrcver=`(echo "#include <spl_config.h>";
echo "splsrcver=VERSION") |
cpp -I $splbuild |
grep "^splsrcver=" | cut -d \" -f 2`
fi
if test -z "$splsrcver"; then
AC_MSG_RESULT([Not found])
AC_MSG_ERROR([
*** Cannot determine the version of the spl source.
*** Please prepare the spl source before running this script])
fi
AC_MSG_RESULT([$splsrcver])
AC_MSG_CHECKING([spl Module.symvers])
if test -r $splbuild/modules/Module.symvers; then
splsymvers=$splbuild/modules/Module.symvers
elif test -r $kernelbuild/Module.symvers; then
splsymvers=$kernelbuild/Module.symvers
fi
if test -z "$splsymvers"; then
AC_MSG_RESULT([Not found])
AC_MSG_ERROR([
*** Cannot find extra Module.symvers in the spl source.
*** Please prepare the spl source before running this script])
fi
AC_MSG_RESULT([$splsymvers])
AC_SUBST(splsrc)
AC_SUBST(splsymvers)
])
AC_DEFUN([ZFS_AC_LICENSE], [
AC_MSG_CHECKING([license])
AC_MSG_RESULT([CDDL])
dnl # AC_DEFINE([HAVE_GPL_ONLY_SYMBOLS], [1],
dnl # [Define to 1 if module is licensed under the GPL])
])
AC_DEFUN([ZFS_AC_DEBUG], [
AC_MSG_CHECKING([whether debugging is enabled])
AC_ARG_ENABLE( [debug],
AS_HELP_STRING([--enable-debug],
[Enable generic debug support (default off)]),
[ case "$enableval" in
yes) zfs_ac_debug=yes ;;
no) zfs_ac_debug=no ;;
*) AC_MSG_RESULT([Error!])
AC_MSG_ERROR([Bad value "$enableval" for --enable-debug]) ;;
esac ]
)
if test "$zfs_ac_debug" = yes; then
AC_MSG_RESULT([yes])
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG "
HOSTCFLAGS="${HOSTCFLAGS} -DDEBUG "
else
AC_MSG_RESULT([no])
AC_DEFINE([NDEBUG], [1],
[Define to 1 to disable debug tracing])
KERNELCPPFLAGS="${KERNELCPPFLAGS} -DNDEBUG "
HOSTCFLAGS="${HOSTCFLAGS} -DNDEBUG "
fi
])
AC_DEFUN([ZFS_AC_SCRIPT_CONFIG], [
SCRIPT_CONFIG=.script-config
rm -f ${SCRIPT_CONFIG}
echo "KERNELSRC=${LINUX}" >>${SCRIPT_CONFIG}
echo "KERNELBUILD=${LINUX_OBJ}" >>${SCRIPT_CONFIG}
echo "KERNELSRCVER=$kernsrcver" >>${SCRIPT_CONFIG}
echo >>${SCRIPT_CONFIG}
echo "SPLSRC=$splsrc" >>${SCRIPT_CONFIG}
echo "SPLBUILD=$splbuild" >>${SCRIPT_CONFIG}
echo "SPLSRCVER=$splsrcver" >>${SCRIPT_CONFIG}
echo "SPLSYMVERS=$splsymvers" >>${SCRIPT_CONFIG}
echo >>${SCRIPT_CONFIG}
echo "ZFSSRC=${TOPDIR}/src" >>${SCRIPT_CONFIG}
echo "ZFSBUILD=${ZFSDIR}" >>${SCRIPT_CONFIG}
echo >>${SCRIPT_CONFIG}
echo "TOPDIR=${TOPDIR} >>${SCRIPT_CONFIG}
echo "LIBDIR=${LIBDIR} >>${SCRIPT_CONFIG}
echo "CMDDIR=${CMDDIR} >>${SCRIPT_CONFIG}
])
dnl #
dnl # ZFS_LINUX_CONFTEST
dnl #
AC_DEFUN([ZFS_LINUX_CONFTEST], [
cat >conftest.c <<_ACEOF
$1
_ACEOF
])
dnl #
dnl # ZFS_LANG_PROGRAM(C)([PROLOGUE], [BODY])
dnl #
m4_define([ZFS_LANG_PROGRAM], [
$1
int
main (void)
{
dnl Do *not* indent the following line: there may be CPP directives.
dnl Don't move the `;' right after for the same reason.
$2
;
return 0;
}
])
dnl #
dnl # ZFS_LINUX_COMPILE_IFELSE / like AC_COMPILE_IFELSE
dnl #
AC_DEFUN([ZFS_LINUX_COMPILE_IFELSE], [
m4_ifvaln([$1], [ZFS_LINUX_CONFTEST([$1])])dnl
rm -f build/conftest.o build/conftest.mod.c build/conftest.ko build/Makefile
echo "obj-m := conftest.o" >build/Makefile
dnl AS_IF([AC_TRY_COMMAND(cp conftest.c build && make [$2] CC="$CC" -f $PWD/build/Makefile LINUXINCLUDE="-Iinclude -include include/linux/autoconf.h" -o tmp_include_depends -o scripts -o include/config/MARKER -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM SUBDIRS=$PWD/build) >/dev/null && AC_TRY_COMMAND([$3])],
AS_IF([AC_TRY_COMMAND(cp conftest.c build && make [$2] CC="$CC" LINUXINCLUDE="-Iinclude -include include/linux/autoconf.h" -o tmp_include_depends -o scripts -o include/config/MARKER -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build) >/dev/null && AC_TRY_COMMAND([$3])],
[$4],
[_AC_MSG_LOG_CONFTEST
m4_ifvaln([$5],[$5])dnl])dnl
rm -f build/conftest.o build/conftest.mod.c build/conftest.mod.o build/conftest.ko m4_ifval([$1], [build/conftest.c conftest.c])[]dnl
])
dnl #
dnl # ZFS_LINUX_TRY_COMPILE like AC_TRY_COMPILE
dnl #
AC_DEFUN([ZFS_LINUX_TRY_COMPILE],
[ZFS_LINUX_COMPILE_IFELSE(
[AC_LANG_SOURCE([ZFS_LANG_PROGRAM([[$1]], [[$2]])])],
[modules],
[test -s build/conftest.o],
[$3], [$4])
])
dnl #
dnl # ZFS_LINUX_CONFIG
dnl #
AC_DEFUN([ZFS_LINUX_CONFIG],
[AC_MSG_CHECKING([whether Linux was built with CONFIG_$1])
ZFS_LINUX_TRY_COMPILE([
#ifndef AUTOCONF_INCLUDED
#include <linux/config.h>
#endif
],[
#ifndef CONFIG_$1
#error CONFIG_$1 not #defined
#endif
],[
AC_MSG_RESULT([yes])
$2
],[
AC_MSG_RESULT([no])
$3
])
])
dnl #
dnl # ZFS_CHECK_SYMBOL_EXPORT
dnl # check symbol exported or not
dnl #
AC_DEFUN([ZFS_CHECK_SYMBOL_EXPORT],
[AC_MSG_CHECKING([whether symbol $1 is exported])
grep -q -E '[[[:space:]]]$1[[[:space:]]]' $LINUX/Module.symvers 2>/dev/null
rc=$?
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])
$3
fi
])
dnl #
dnl # 2.6.x API change
dnl # bio_end_io_t uses 2 args (size was dropped from prototype)
dnl #
AC_DEFUN([ZFS_AC_2ARGS_BIO_END_IO_T],
[AC_MSG_CHECKING([whether bio_end_io_t wants 2 args])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
ZFS_LINUX_TRY_COMPILE([
#include <linux/bio.h>
],[
void (*wanted_end_io)(struct bio *, int) = NULL;
bio_end_io_t *local_end_io;
local_end_io = wanted_end_io;
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_2ARGS_BIO_END_IO_T, 1,
[bio_end_io_t wants 2 args])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])
|
