#
-# LB_LINUX_INKERNEL
-#
-# in kernel compilation? (2.5 only)
-#
-AC_DEFUN([LB_LINUX_INKERNEL],
-[AC_MSG_CHECKING([if inkernel build support is requested])
-AC_ARG_ENABLE([inkernel],
- AC_HELP_STRING([--enable-inkernel],
- [set up 2.5 kernel makefiles]),
- [],[enable_inkernel=no])
-AC_MSG_RESULT([$enable_inkernel])
-
-if test x$enable_inkernel = xyes ; then
- echo ln -s `pwd` $LINUX/fs/lustre
- rm $LINUX/fs/lustre
- ln -s `pwd` $LINUX/fs/lustre
- find portals lustre -name Makefile.mk | sed 's/.mk$//' | xargs -n 1 \
- sh -e -x -c '(cp -f $0.mk $0.in)'
-fi
-])
-
-
-#
# LB_LINUX_VERSION
#
# Set things accordingly for a 2.5 kernel
#
AC_DEFUN([LB_LINUX_VERSION],
-[AC_CHECK_FILE([$LINUX/include/linux/namei.h],
+[LB_CHECK_FILE([$LINUX/include/linux/namei.h],
[
linux25="yes"
KMODEXT=".ko"
MODULE_TARGET="SUBDIRS"
if test $linux25 = "yes" ; then
- LB_CONFIG_INKERNEL
-
makerule="$PWD/build"
AC_MSG_CHECKING([for external module build support])
rm -f build/conftest.i
[
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
AC_SUBST(MODULE_TARGET)
-AC_SUBST(LINUX25)
+AC_SUBST(linux25)
AC_SUBST(KMODEXT)
])
[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;
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]),
- [KERNEL_SOURCE_HEADER='/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],
AC_HELP_STRING([--with-kernel-source-header=path],
- [Use a different kernel version header. Consult README.kernel-source for details.]),
+ [Use a different kernel version header. Consult build/README.kernel-source for details.]),
[KERNEL_SOURCE_HEADER=$with_kernel_source_header])
# ------------ .config exists ----------------
-AC_CHECK_FILE([$LINUX_CONFIG],[],
- [AC_MSG_ERROR([Kernel config could not be found. If you are building from a kernel-source rpm consult README.kernel-source])])
+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
+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 $LINUX.])])
# This is a clean kernel-source tree, we need to
# enable extensive workarounds to get this to build
# modules
- AC_CHECK_FILE([$KERNEL_SOURCE_HEADER],
+ LB_CHECK_FILE([$KERNEL_SOURCE_HEADER],
[if test $KERNEL_SOURCE_HEADER = '/boot/kernel.h' ; then
AC_MSG_WARN([Using /boot/kernel.h from RUNNING kernel.])
AC_MSG_WARN([If this is not what you want, use --with-kernel-source-header.])
- AC_MSG_WARN([Consult README.kernel-source for details.])
+ AC_MSG_WARN([Consult build/README.kernel-source for details.])
fi],
- [AC_MSG_ERROR([$KERNEL_SOURCE_HEADER not found. Consult 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_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 README.kernel-source])
- AC_MSG_ERROR([Kernel modules could not be built.])
+ 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 build.])
])
LB_LINUX_RELEASE
])
#
+# 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/config.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
[LB_LINUX_COMPILE_IFELSE([AC_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 $target_cpu in
+ i?86 | x86_64)
+ LB_LINUX_CONFIG([STACK_SIZE_16KB],[],[
+ LB_LINUX_CONFIG([STACK_SIZE_32KB],[],[
+ LB_LINUX_CONFIG([STACK_SIZE_64KB],[],[
+ AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 16KB stack.])
+ ])
+ ])
+ ])
+ ;;
+ esac
+fi
+])
+
+#
# LB_PROG_LINUX
#
# linux tests
#
AC_DEFUN([LB_PROG_LINUX],
[LB_LINUX_PATH
-LB_LINUX_UML
LB_LINUX_CONFIG([MODULES],[],[
AC_MSG_ERROR([module support is required to build Lustre kernel modules.])
fi
])
-# Portals tests
-LP_PROG_LINUX
-
-# Lustre tests
-LC_PROG_LINUX
-])
-
-#
-# LB_LINUX_CONDITIONALS
-#
-# AM_CONDITIONALS for linux
-#
-AC_DEFUN([LB_LINUX_CONDITIONALS],
-[AM_CONDITIONAL(INKERNEL, test x$enable_inkernel = xyes)
-AM_CONDITIONAL(LINUX25, test x$linux25 = xyes)
-])
-
-#
-# LB_LINUX_STRUCT_PAGE_LIST
-#
-# 2.6.4 no longer has page->list
-#
-AC_DEFUN([LB_LINUX_STRUCT_PAGE_LIST],
-[AC_MSG_CHECKING([if struct page has a list field])
-LB_LINUX_TRY_COMPILE([
- #include <linux/mm.h>
-],[
- struct page page;
- &page.list;
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_PAGE_LIST, 1, [struct page has a list field])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LB_LINUX_STRUCT_SIGHAND
-#
-# red hat 2.4 adds sighand to struct task_struct
-#
-AC_DEFUN([LB_LINUX_STRUCT_SIGHAND],
-[AC_MSG_CHECKING([if task_struct has a sighand field])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
-],[
- struct task_struct p;
- p.sighand = NULL;
-],[
- AC_DEFINE(CONFIG_RH_2_4_20, 1, [this kernel contains Red Hat 2.4.20 patches])
- AC_MSG_RESULT([yes])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LB_LINUX_FUNC_CPU_ONLINE
-#
-# cpu_online is different in rh 2.4, vanilla 2.4, and 2.6
-#
-AC_DEFUN([LB_LINUX_FUNC_CPU_ONLINE],
-[AC_MSG_CHECKING([if kernel defines cpu_online()])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
-],[
- cpu_online(0);
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_CPU_ONLINE, 1, [cpu_online found])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LB_LINUX_TYPE_CPUMASK_T
-#
-# same goes for cpumask_t
-#
-AC_DEFUN([LB_LINUX_TYPE_CPUMASK_T],
-[AC_MSG_CHECKING([if kernel defines cpumask_t])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
-],[
- return sizeof (cpumask_t);
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_CPUMASK_T, 1, [cpumask_t found])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LB_LINUX_FUNC_SHOW_TASK
-#
-# we export show_task(), but not all kernels have it (yet)
-#
-AC_DEFUN([LB_LINUX_FUNC_SHOW_TASK],
-[AC_MSG_CHECKING([if kernel exports show_task])
-have_show_task=0
-for file in ksyms sched ; do
- if grep -q "EXPORT_SYMBOL(show_task)" \
- "$LINUX/kernel/$file.c" 2>/dev/null ; then
- have_show_task=1
- break
- fi
-done
-if test x$have_show_task = x1 ; then
- AC_DEFINE(HAVE_SHOW_TASK, 1, [show_task is exported])
- AC_MSG_RESULT([yes])
-else
- AC_MSG_RESULT([no])
-fi
-])
-
-#
-# LB_LINUX_CONFIG_EXT3
-#
-# that ext3 is enabled in the kernel
-#
-AC_DEFUN([LB_LINUX_CONFIG_EXT3],
-[LB_LINUX_CONFIG([EXT3_FS],[],[
- LB_LINUX_CONFIG([EXT3_FS_MODULE],[],[$2])
-])
-LB_LINUX_CONFIG([EXT3_FS_XATTR],[$1],[$3])
+LB_LINUX_CONFIG([KMOD],[],[
+ AC_MSG_WARN([])
+ AC_MSG_WARN([Kernel module loading support is highly recommended.])
+ AC_MSG_WARN([])
])
-#
-# LB_LINUX_FSHOOKS
-#
-# If we have (and can build) fshooks.h
-#
-AC_DEFUN([LB_LINUX_FSHOOKS],
-[AC_MSG_CHECKING([if this compiler can build a SuSE 2.6 kernel])
-# an excerpt from fshooks.h, which doesn't build with fedora's gcc 3.4
-LB_LINUX_TRY_COMPILE([
- /* for the lack of a kernel-wide definition */
- typedef enum {
- false,
- true
- } boolean_t __attribute__((__mode__(__QI__)));
-],[],[
- AC_MSG_RESULT([yes])
-],[
- AC_MSG_RESULT([no])
- AC_MSG_WARN([We suggest trying gcc 3.3.x.])
- AC_MSG_WARN([You can set CC=gcc33 before running configure.])
- AC_MSG_ERROR([Your compiler cannot build a SuSE 2.6 kernel.])
-])
-AC_MSG_CHECKING([if fshooks are present])
-LB_LINUX_TRY_COMPILE([
- #include <linux/fshooks.h>
-],[],[
- AC_MSG_RESULT([yes])
-$1
-],[
- AC_MSG_RESULT([no])
-$2
-])
-])
+#LB_LINUX_CONFIG_BIG_STACK
-#
-# LB_LINUX_STRUCT_KIOBUF
-#
-# rh 2.4.18 has iobuf->dovary, but other kernels do not
-#
-AC_DEFUN([LB_LINUX_STRUCT_KIOBUF],
-[AC_MSG_CHECKING([if struct kiobuf has a dovary field])
-LB_LINUX_TRY_COMPILE([
- #include <linux/iobuf.h>
-],[
- struct kiobuf iobuf;
- iobuf.dovary = 1;
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_KIOBUF_DOVARY, 1, [struct kiobuf has a dovary field])
-],[
- AC_MSG_RESULT([no])
-])
-])
+# LNet tests
+LN_PROG_LINUX
-#
-# LB_LINUX_FUNC_COND_RESCHED
-#
-# cond_resched() was introduced in 2.4.20
-#
-AC_DEFUN([LB_LINUX_FUNC_COND_RESCHED],
-[AC_MSG_CHECKING([if kernel offers cond_resched])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
-],[
- cond_resched();
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_COND_RESCHED, 1, [cond_resched found])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LB_LINUX_FUNC_ZAP_PAGE_RANGE
-#
-# if zap_page_range() taks a vma arg
-#
-AC_DEFUN([LB_LINUX_FUNC_ZAP_PAGE_RANGE],
-[AC_MSG_CHECKING([if zap_pag_range with vma parameter])
-ZAP_PAGE_RANGE_VMA="`grep -c 'zap_page_range.*struct vm_area_struct' $LINUX/include/linux/mm.h`"
-if test "$ZAP_PAGE_RANGE_VMA" != 0 ; then
- AC_DEFINE(ZAP_PAGE_RANGE_VMA, 1, [zap_page_range with vma parameter])
- AC_MSG_RESULT([yes])
-else
- AC_MSG_RESULT([no])
-fi
-])
-
-#
-# LB_LINUX_FUNC_PDE
-#
-# if proc_fs.h defines PDE()
-#
-AC_DEFUN([LB_LINUX_FUNC_PDE],
-[AC_MSG_CHECKING([if kernel defines PDE])
-HAVE_PDE="`grep -c 'proc_dir_entry..PDE' $LINUX/include/linux/proc_fs.h`"
-if test "$HAVE_PDE" != 0 ; then
- AC_DEFINE(HAVE_PDE, 1, [the kernel defines PDE])
- AC_MSG_RESULT([yes])
-else
- AC_MSG_RESULT([no])
-fi
-])
+# Lustre tests
+LC_PROG_LINUX
-#
-# LB_LINUX_FUNC_DIRECT_IO
-#
-# if direct_IO takes a struct file argument
-#
-AC_DEFUN([LB_LINUX_FUNC_DIRECT_IO],
-[AC_MSG_CHECKING([if kernel passes struct file to direct_IO])
-HAVE_DIO_FILE="`grep -c 'direct_IO.*struct file' $LINUX/include/linux/fs.h`"
-if test "$HAVE_DIO_FILE" != 0 ; then
- AC_DEFINE(HAVE_DIO_FILE, 1, [the kernel passes struct file to direct_IO])
- AC_MSG_RESULT(yes)
-else
- AC_MSG_RESULT(no)
+# Portals tests
+if test "$PORTALS" ; then
+ LP_PROG_LINUX
fi
])
#
-# LB_LINUX_HEADER_MM_INLINE
+# LB_LINUX_CONDITIONALS
#
-# RHEL kernels define page_count in mm_inline.h
+# AM_CONDITIONALS for linux
#
-AC_DEFUN([LB_LINUX_HEADER_MM_INLINE],
-[AC_MSG_CHECKING([if kernel has mm_inline.h header])
-LB_LINUX_TRY_COMPILE([
- #include <linux/mm_inline.h>
-],[
- #ifndef page_count
- #error mm_inline.h does not define page_count
- #endif
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_MM_INLINE, 1, [mm_inline found])
-],[
- AC_MSG_RESULT([no])
-])
+AC_DEFUN([LB_LINUX_CONDITIONALS],
+[AM_CONDITIONAL(LINUX25, test x$linux25 = xyes)
])
-#
-# LB_LINUX_STRUCT_INODE
-#
-# if inode->i_alloc_sem exists
-#
-AC_DEFUN([LB_LINUX_STRUCT_INODE],
-[AC_MSG_CHECKING([if struct inode has i_alloc_sem])
-LB_LINUX_TRY_COMPILE([
- #include <linux/fs.h>
- #include <linux/version.h>
-],[
- #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,24))
- #error "down_read_trylock broken before 2.4.24"
- #endif
- struct inode i;
- return (char *)&i.i_alloc_sem - (char *)&i;
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_I_ALLOC_SEM, 1, [struct inode has i_alloc_sem])
-],[
- AC_MSG_RESULT([no])
-])
-])