b=17952

[fs/lustre-release.git] / build / autoconf / lustre-build-linux.m4

diff --git a/build/autoconf/lustre-build-linux.m4 b/build/autoconf/lustre-build-linux.m4
index 8e7c8c1..e0eafbd 100644 (file)
--- a/build/autoconf/lustre-build-linux.m4
+++ b/build/autoconf/lustre-build-linux.m4
@@ -98,6 +98,36 @@ AC_MSG_CHECKING([for Lustre 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])
+])
+
 ])
 
 #
@@ -111,7 +141,13 @@ AC_DEFUN([LB_LINUX_PATH],
 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)
@@ -200,6 +236,20 @@ LB_LINUX_TRY_COMPILE([],[],[
 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
@@ -209,9 +259,9 @@ LB_LINUX_RELEASE
 AC_DEFUN([LB_LINUX_MODPOST],
 [
 # Find the modpost utility
-AC_CHECK_FILE([$LINUX_OBJ/scripts/mod/modpost],
+LB_CHECK_FILE([$LINUX_OBJ/scripts/mod/modpost],
        [MODPOST=$LINUX_OBJ/scripts/mod/modpost],
-       [AC_CHECK_FILE([$LINUX_OBJ/scripts/modpost],
+       [LB_CHECK_FILE([$LINUX_OBJ/scripts/modpost],
                [MODPOST=$LINUX_OBJ/scripts/modpost],
                AC_MSG_ERROR([modpost not found.])
        )]
@@ -255,7 +305,7 @@ if test -e $LINUX/include/asm-um ; then
                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)])
@@ -301,7 +351,7 @@ $2
 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 LINUXINCLUDE="$EXTRA_LNET_INCLUDE -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 $MODULE_TARGET=$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
@@ -309,6 +359,21 @@ rm -f build/conftest.o build/conftest.mod.c build/conftest.mod.o build/conftest.
 ])
 
 #
+# 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
@@ -328,9 +393,7 @@ AC_DEFUN([LB_LINUX_TRY_COMPILE],
 AC_DEFUN([LB_LINUX_CONFIG],
 [AC_MSG_CHECKING([if Linux was built with CONFIG_$1])
 LB_LINUX_TRY_COMPILE([
-#ifndef AUTOCONF_INCLUDED
-#include <linux/config.h>
-#endif
+#include <linux/autoconf.h>
 ],[
 #ifndef CONFIG_$1
 #error CONFIG_$1 not #defined
@@ -351,7 +414,9 @@ $3
 #
 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>],[
+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
@@ -400,6 +465,9 @@ fi
 #
 AC_DEFUN([LB_PROG_LINUX],
 [LB_LINUX_PATH
+LB_LINUX_ARCH
+LB_LINUX_SYMVERFILE
+
 
 LB_LINUX_CONFIG([MODULES],[],[
        AC_MSG_ERROR([module support is required to build Lustre kernel modules.])
@@ -449,12 +517,12 @@ AC_DEFUN([LB_LINUX_CONDITIONALS],
 # 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/Module.symvers 2>/dev/null
+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
+       grep -q -E "EXPORT_SYMBOL.*\($1\)" "$LINUX/$file" 2>/dev/null
        rc=$?
        if test $rc -eq 0; then
                export=1