# Set things accordingly for a 2.5 kernel
#
AC_DEFUN([LB_LINUX_VERSION],
-[AC_CHECK_FILE([$LINUX/include/linux/namei.h],
+[LB_CHECK_FILE([$LINUX/include/linux/namei.h],
[
linux25="yes"
KMODEXT=".ko"
[
AC_MSG_RESULT([no])
],[
- AC_MSG_RESULT([yes])
makerule="_module_$makerule"
MODULE_TARGET="M"
+ LB_LINUX_TRY_MAKE([],[],
+ [$makerule LUSTRE_KERNEL_TEST=conftest.i],
+ [test -s build/conftest.i],
+ [
+ AC_MSG_RESULT([yes])
+ ],[
+ AC_MSG_ERROR([unknown; check config.log for details])
+ ])
])
-
else
makerule="_dir_$PWD/build"
fi
[LINUXRELEASE=
rm -f build/conftest.i
AC_MSG_CHECKING([for Linux release])
+if test -s $LINUX_OBJ/include/linux/utsrelease.h ; then
+ LINUXRELEASEHEADER=utsrelease.h
+else
+ LINUXRELEASEHEADER=version.h
+fi
LB_LINUX_TRY_MAKE([
- #include <linux/version.h>
+ #include <linux/$LINUXRELEASEHEADER>
],[
char *LINUXRELEASE;
LINUXRELEASE=UTS_RELEASE;
RELEASE="`echo ${LINUXRELEASE} | tr '-' '_'`_`date +%Y%m%d%H%M`"
AC_MSG_RESULT($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_MAJOR
+ #error "not redhat kernel"
+ #endif
+ ],[
+ RHEL_KENEL="yes"
+ AC_MSG_RESULT([yes])
+ ],[
+ AC_MSG_RESULT([no])
+])
+
+AC_MSG_CHECKING([that SuSe kernel])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/version.h>
+ ],[
+ #ifndef SLE_VERSION_CODE
+ #error "not sles kernel"
+ #endif
+ ],[
+ SUSE_KERNEL="yes"
+ AC_MSG_RESULT([yes])
+ ],[
+ AC_MSG_RESULT([no])
+])
+
])
#
+#
# LB_LINUX_PATH
#
# Find paths for linux, handling kernel-source rpms
AC_ARG_WITH([linux],
AC_HELP_STRING([--with-linux=path],
[set path to Linux source (default=/usr/src/linux)]),
- [LINUX=$with_linux],
+ [
+ if ! [[[ $with_linux = /* ]]]; then
+ AC_MSG_ERROR([You must provide an absolute pathname to the --with-linux= option.])
+ else
+ LINUX=$with_linux
+ fi
+ ],
[LINUX=/usr/src/linux])
AC_MSG_RESULT([$LINUX])
AC_SUBST(LINUX)
+# -------- check for linux --------
+LB_CHECK_FILE([$LINUX],[],
+ [AC_MSG_ERROR([Kernel source $LINUX could not be found.])])
+
# -------- linux objects (for 2.6) --
AC_MSG_CHECKING([for Linux objects dir])
AC_ARG_WITH([linux-obj],
AC_MSG_RESULT([$LINUX_OBJ])
AC_SUBST(LINUX_OBJ)
-# -------- check for .confg --------
+# -------- check for .config --------
AC_ARG_WITH([linux-config],
[AC_HELP_STRING([--with-linux-config=path],
[set path to Linux .conf (default=$LINUX_OBJ/.config)])],
[LINUX_CONFIG=$LINUX_OBJ/.config])
AC_SUBST(LINUX_CONFIG)
-AC_CHECK_FILE([/boot/kernel.h],
+LB_CHECK_FILE([/boot/kernel.h],
[KERNEL_SOURCE_HEADER='/boot/kernel.h'],
- [AC_CHECK_FILE([/var/adm/running-kernel.h],
+ [LB_CHECK_FILE([/var/adm/running-kernel.h],
[KERNEL_SOURCE_HEADER='/var/adm/running-kernel.h'])])
AC_ARG_WITH([kernel-source-header],
[KERNEL_SOURCE_HEADER=$with_kernel_source_header])
# ------------ .config exists ----------------
-AC_CHECK_FILE([$LINUX_CONFIG],[],
+LB_CHECK_FILE([$LINUX_CONFIG],[],
[AC_MSG_ERROR([Kernel config could not be found. If you are building from a kernel-source rpm consult build/README.kernel-source])])
# ----------- make dep run? ------------------
-AC_CHECK_FILES([$LINUX_OBJ/include/linux/autoconf.h
+# at 2.6.19 # $LINUX/include/linux/config.h is removed
+# and at more old has only one line
+# include <autoconf.h>
+LB_CHECK_FILES([$LINUX_OBJ/include/linux/autoconf.h
$LINUX_OBJ/include/linux/version.h
- $LINUX/include/linux/config.h],[],
+ ],[],
[AC_MSG_ERROR([Run make config in $LINUX.])])
# ------------ rhconfig.h includes runtime-generated bits --
# This is a clean kernel-source tree, we need to
# enable extensive workarounds to get this to build
# modules
- AC_CHECK_FILE([$KERNEL_SOURCE_HEADER],
+ 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.])
fi
# this is needed before we can build modules
+LB_LINUX_UML
LB_LINUX_VERSION
# --- check that we can build modules at all
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 could not be built.])
+ AC_MSG_ERROR([Kernel modules cannot be built.])
])
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_MODPOST
+#
+# Find modpost and check it
+#
+AC_DEFUN([LB_LINUX_MODPOST],
+[
+# Find the modpost utility
+LB_CHECK_FILE([$LINUX_OBJ/scripts/mod/modpost],
+ [MODPOST=$LINUX_OBJ/scripts/mod/modpost],
+ [LB_CHECK_FILE([$LINUX_OBJ/scripts/modpost],
+ [MODPOST=$LINUX_OBJ/scripts/modpost],
+ AC_MSG_ERROR([modpost not found.])
+ )]
+)
+AC_SUBST(MODPOST)
+
+# Ensure it can run
+AC_MSG_CHECKING([if modpost can be run])
+if $MODPOST ; then
+ AC_MSG_RESULT([yes])
+else
+ AC_MSG_ERROR([modpost can not be run.])
+fi
+
+# Check if modpost supports (and therefore requires) -m
+AC_MSG_CHECKING([if modpost supports -m])
+if $MODPOST -m 2>/dev/null ; then
+ AC_MSG_RESULT([yes])
+ MODPOST_ARGS=-m
+else
+ AC_MSG_RESULT([no])
+ MODPOST_ARGS=""
+fi
+AC_SUBST(MODPOST_ARGS)
])
#
UML_CFLAGS='-O0'
AC_MSG_RESULT(yes)
else
- AC_MSG_RESULT([no (asm doesn't point at asm-um)])
+ AC_MSG_RESULT([no])
fi
else
AC_MSG_RESULT([no (asm-um missing)])
_ACEOF
])
+
+# LB_LANG_PROGRAM(C)([PROLOGUE], [BODY])
+# --------------------------------------
+m4_define([LB_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;
+}])
+
#
# LB_LINUX_COMPILE_IFELSE
#
AC_DEFUN([LB_LINUX_COMPILE_IFELSE],
[m4_ifvaln([$1], [LB_LINUX_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 [$2] CC="$CC" -f $PWD/build/Makefile LUSTRE_LINUX_CONFIG=$LINUX_CONFIG -o tmp_include_depends -o scripts -o include/config/MARKER -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM $MODULE_TARGET=$PWD/build) >/dev/null && AC_TRY_COMMAND([$3])],
+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/include -I$LINUX_OBJ/include -I$LINUX_OBJ/include2 -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 $MODULE_TARGET=$PWD/build) >/dev/null && AC_TRY_COMMAND([$3])],
[$4],
[_AC_MSG_LOG_CONFTEST
m4_ifvaln([$5],[$5])dnl])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_OBJ $ARCH_UM \
+ ARCHFILE=$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_LANG_PROGRAM([[$1]], [[$2]])],
+ [AC_LANG_SOURCE([LB_LANG_PROGRAM([[$1]], [[$2]])])],
[modules],
[test -s build/conftest.o],
[$3], [$4])])
#
AC_DEFUN([LB_LINUX_CONFIG],
[AC_MSG_CHECKING([if Linux was built with CONFIG_$1])
-LB_LINUX_TRY_COMPILE([#include <linux/config.h>],[
+LB_LINUX_TRY_COMPILE([
+#include <linux/autoconf.h>
+],[
#ifndef CONFIG_$1
#error CONFIG_$1 not #defined
#endif
])
#
+# 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 <linux/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
+])
+])
+
+#
# LB_LINUX_TRY_MAKE
#
# like LB_LINUX_TRY_COMPILE, but with different arguments
#
AC_DEFUN([LB_LINUX_TRY_MAKE],
-[LB_LINUX_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4], [$5], [$6])])
+[LB_LINUX_COMPILE_IFELSE([AC_LANG_SOURCE([LB_LANG_PROGRAM([[$1]], [[$2]])])], [$3], [$4], [$5], [$6])])
+
+#
+# LB_LINUX_CONFIG_BIG_STACK
+#
+# check for big stack patch
+#
+AC_DEFUN([LB_LINUX_CONFIG_BIG_STACK],
+[if test "x$ARCH_UM" = "x" -a "x$linux25" = "xno" ; then
+ case $target_cpu in
+ i?86 | x86_64)
+ LB_LINUX_CONFIG([STACK_SIZE_16KB],[],[
+ LB_LINUX_CONFIG([STACK_SIZE_32KB],[],[
+ LB_LINUX_CONFIG([STACK_SIZE_64KB],[],[
+ AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 16KB stack.])
+ ])
+ ])
+ ])
+ ;;
+ esac
+fi
+])
#
# LB_PROG_LINUX
#
AC_DEFUN([LB_PROG_LINUX],
[LB_LINUX_PATH
-LB_LINUX_UML
+LB_LINUX_ARCH
+LB_LINUX_SYMVERFILE
+
LB_LINUX_CONFIG([MODULES],[],[
AC_MSG_ERROR([module support is required to build Lustre kernel modules.])
fi
])
-# Portals tests
-LP_PROG_LINUX
+LB_LINUX_CONFIG([KMOD],[],[
+ AC_MSG_WARN([])
+ AC_MSG_WARN([Kernel module loading support is highly recommended.])
+ AC_MSG_WARN([])
+])
+
+#LB_LINUX_CONFIG_BIG_STACK
-# Lustre tests
-LC_PROG_LINUX
])
#
# AM_CONDITIONALS for linux
#
AC_DEFUN([LB_LINUX_CONDITIONALS],
-[AM_CONDITIONAL(INKERNEL, test x$enable_inkernel = xyes)
-AM_CONDITIONAL(LINUX25, test x$linux25 = xyes)
+[AM_CONDITIONAL(LINUX25, test x$linux25 = xyes)
+])
+
+
+#
+# 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 is 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
])
git://git.whamcloud.com / fs / lustre-release.git / blobdiff