# -*- autoconf -*-
-# Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
+# Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
AC_MSG_RESULT([$kversion])
if test "$version" -ge 3; then
- : # Linux 3.x
- elif test "$version" = 2 && test "$patchlevel" -ge 6; then
- : # Linux 2.6.x
+ if test "$version" = 3 && test "$patchlevel" -le 11; then
+ : # Linux 3.x
+ else
+ AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 3.11.x is not supported])
+ fi
else
- if test "$KBUILD" = "$KSRC"; then
- AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version 2.6 or later is required])
+ if test "$version" -le 1 || test "$patchlevel" -le 5 || test "$sublevel" -le 31; then
+ AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version 2.6.32 or later is required])
else
- AC_ERROR([Linux kernel in build tree $KBUILD (source tree $KSRC) is version $kversion, but version 2.6 or later is required])
+ : # Linux 2.6.x
fi
fi
if (test ! -e "$KBUILD"/include/linux/version.h && \
OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_by_index_rcu])
OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [__skb_gso_segment])
OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [can_checksum_protocol])
+ OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netdev_features_t])
OVS_GREP_IFELSE([$KSRC/include/linux/rcupdate.h], [rcu_read_lock_held], [],
[OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h],
[rcu_read_lock_held])])
+ OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], [lockdep_rtnl_is_held])
# Check for the proto_data_valid member in struct sk_buff. The [^@]
# is necessary because some versions of this header remove the
# quoting rules.
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [[[^@]]proto_data_valid],
[OVS_DEFINE([HAVE_PROTO_DATA_VALID])])
- OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [raw],
- [OVS_DEFINE([HAVE_MAC_RAW])])
+ OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [rxhash])
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_dst(],
[OVS_DEFINE([HAVE_SKB_DST_ACCESSOR_FUNCS])])
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
[OVS_DEFINE([HAVE_SKB_WARN_LRO])])
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [consume_skb])
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_frag_page])
+ OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_has_frag_list])
+ OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_fill_page_desc])
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_reset_mac_len])
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_unclone])
- OVS_GREP_IFELSE([$KSRC/include/linux/string.h], [kmemdup], [],
- [OVS_GREP_IFELSE([$KSRC/include/linux/slab.h], [kmemdup])])
-
OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [bool],
[OVS_DEFINE([HAVE_BOOL_TYPE])])
OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [__wsum],
OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_unfold])
OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [parallel_ops])
- OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [NLA_NUL_STRING])
+ OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_cisco_register])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_get_be16])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be16])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be32])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be64])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_find_nested])
+ OVS_GREP_IFELSE([$KSRC/include/net/sctp/checksum.h], [sctp_compute_cksum])
+
OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [ADD_ALL_VLANS_CMD],
[OVS_DEFINE([HAVE_VLAN_BUG_WORKAROUND])])
AC_SUBST([SPARSE])
AC_CONFIG_COMMANDS_PRE(
[if test $ovs_cv_gnu_make_if = yes; then
- CC='$(if $(C),REAL_CC="'"$CC"'" CHECK="$(SPARSE) -I $(top_srcdir)/include/sparse $(SPARSEFLAGS) $(SPARSE_EXTRA_INCLUDES) " cgcc $(CGCCFLAGS),'"$CC"')'
+ CC='$(if $(C),env REAL_CC="'"$CC"'" CHECK="$(SPARSE) -I $(top_srcdir)/include/sparse $(SPARSEFLAGS) $(SPARSE_EXTRA_INCLUDES) " cgcc $(CGCCFLAGS),'"$CC"')'
fi])])
dnl OVS_PTHREAD_SET_NAME
;;
esac
fi])
+
+dnl OVS_CHECK_LINUX_HOST.
+dnl
+dnl Checks whether we're building for a Linux host, based on the presence of
+dnl the __linux__ preprocessor symbol, and sets up an Automake conditional
+dnl LINUX based on the result.
+AC_DEFUN([OVS_CHECK_LINUX_HOST],
+ [AC_CACHE_CHECK(
+ [whether __linux__ is defined],
+ [ovs_cv_linux],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([enum { LINUX = __linux__};], [])],
+ [ovs_cv_linux=true],
+ [ovs_cv_linux=false])])
+ AM_CONDITIONAL([LINUX], [$ovs_cv_linux])])