X-Git-Url: http://git.onelab.eu/?p=sliver-openvswitch.git;a=blobdiff_plain;f=acinclude.m4;h=e8a8a2e26b07899851775a39fbe90ff5a4075bbe;hp=b5876a880325d7af7a9a9962088f0c66ea81c4e0;hb=HEAD;hpb=6c4ea27c48b30eaec8e37e642d5072f53c5b2670 diff --git a/acinclude.m4 b/acinclude.m4 index b5876a880..e8a8a2e26 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -1,6 +1,6 @@ # -*- autoconf -*- -# Copyright (c) 2008, 2009, 2010, 2011, 2012 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. @@ -134,17 +134,20 @@ AC_DEFUN([OVS_CHECK_LINUX], [ 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 14; then + : # Linux 3.x + else + AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 3.14.x is not supported (please refer to the FAQ for advice)]) + fi else - if test "$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 || \ + if (test ! -e "$KBUILD"/include/linux/version.h && \ + test ! -e "$KBUILD"/include/generated/uapi/linux/version.h)|| \ (test ! -e "$KBUILD"/include/linux/autoconf.h && \ test ! -e "$KBUILD"/include/generated/autoconf.h); then AC_MSG_ERROR([Linux kernel source in $KBUILD is not configured]) @@ -154,6 +157,32 @@ AC_DEFUN([OVS_CHECK_LINUX], [ AM_CONDITIONAL(LINUX_ENABLED, test -n "$KBUILD") ]) +dnl OVS_CHECK_DPDK +dnl +dnl Configure DPDK source tree +AC_DEFUN([OVS_CHECK_DPDK], [ + AC_ARG_WITH([dpdk], + [AC_HELP_STRING([--with-dpdk=/path/to/dpdk], + [Specify the DPDP build directory])]) + + if test X"$with_dpdk" != X; then + RTE_SDK=$with_dpdk + + DPDK_INCLUDE=$RTE_SDK/include + DPDK_LIB_DIR=$RTE_SDK/lib + DPDK_LIBS="$DPDK_LIB_DIR/libintel_dpdk.a" + + LIBS="$DPDK_LIBS $LIBS" + CPPFLAGS="-I$DPDK_INCLUDE $CPPFLAGS" + + AC_DEFINE([DPDK_NETDEV], [1], [System uses the DPDK module.]) + else + RTE_SDK= + fi + + AM_CONDITIONAL([DPDK_NETDEV], test -n "$RTE_SDK") +]) + dnl OVS_GREP_IFELSE(FILE, REGEX, [IF-MATCH], [IF-NO-MATCH]) dnl dnl Greps FILE for REGEX. If it matches, runs IF-MATCH, otherwise IF-NO-MATCH. @@ -214,15 +243,27 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [ OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [ERR_CAST]) + OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [eth_hw_addr_random]) + OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [ether_addr_copy]) + + OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_set_encap_proto]) + OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [ipv4_is_multicast]) OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_disable_lro]) OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_stats]) OVS_GREP_IFELSE([$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/netdevice.h], [pcpu_sw_netstats]) + + OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32]) OVS_GREP_IFELSE([$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 @@ -231,8 +272,7 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [ # 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([$KSRC/include/linux/skbuff.h], @@ -248,25 +288,43 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [ [OVS_DEFINE([HAVE_SKB_WARN_LRO])]) OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [consume_skb]) OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_frag_page]) - - OVS_GREP_IFELSE([$KSRC/include/linux/string.h], [kmemdup], [], - [OVS_GREP_IFELSE([$KSRC/include/linux/slab.h], [kmemdup])]) + OVS_GREP_IFELSE([$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/skbuff.h], [skb_orphan_frags]) + OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_get_hash]) + OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash]) + OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [l4_rxhash]) OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [bool], [OVS_DEFINE([HAVE_BOOL_TYPE])]) OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [__wsum], [OVS_DEFINE([HAVE_CSUM_TYPES])]) + OVS_GREP_IFELSE([$KSRC/include/uapi/linux/types.h], [__wsum], + [OVS_DEFINE([HAVE_CSUM_TYPES])]) OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_replace4]) OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_unfold]) - OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [NLA_NUL_STRING]) + OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [parallel_ops]) + 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])]) + OVS_GREP_IFELSE([$KSRC/include/linux/percpu.h], [this_cpu_ptr]) + + OVS_GREP_IFELSE([$KSRC/include/linux/openvswitch.h], [openvswitch_handle_frame_hook], + [OVS_DEFINE([HAVE_RHEL_OVS_HOOK])]) + OVS_CHECK_LOG2_H if cmp -s datapath/linux/kcompat.h.new \ @@ -288,7 +346,10 @@ AC_DEFUN([OVS_CHECK_IF_PACKET], [Define to 1 if net/if_packet.h is available.]) fi]) -dnl Checks for net/if_dl.h +dnl Checks for net/if_dl.h. +dnl +dnl (We use this as a proxy for checking whether we're building on FreeBSD +dnl or NetBSD.) AC_DEFUN([OVS_CHECK_IF_DL], [AC_CHECK_HEADER([net/if_dl.h], [HAVE_IF_DL=yes], @@ -297,6 +358,9 @@ AC_DEFUN([OVS_CHECK_IF_DL], if test "$HAVE_IF_DL" = yes; then AC_DEFINE([HAVE_IF_DL], [1], [Define to 1 if net/if_dl.h is available.]) + + # On these platforms we use libpcap to access network devices. + AC_SEARCH_LIBS([pcap_open_live], [pcap]) fi]) dnl Checks for buggy strtok_r. @@ -338,15 +402,15 @@ dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. -dnl OVS_CHECK_CC_OPTION([OPTION], [ACTION-IF-ACCEPTED], [ACTION-IF-REJECTED]) -dnl Check whether the given C compiler OPTION is accepted. -dnl If so, execute ACTION-IF-ACCEPTED, otherwise ACTION-IF-REJECTED. -AC_DEFUN([OVS_CHECK_CC_OPTION], -[ +AC_DEFUN([_OVS_CHECK_CC_OPTION], [dnl m4_define([ovs_cv_name], [ovs_cv_[]m4_translit([$1], [-], [_])])dnl AC_CACHE_CHECK([whether $CC accepts $1], [ovs_cv_name], [ovs_save_CFLAGS="$CFLAGS" - CFLAGS="$CFLAGS $1" + dnl Include -Werror in the compiler options, because without -Werror + dnl clang's GCC-compatible compiler driver does not return a failure + dnl exit status even though it complains about options it does not + dnl understand. + CFLAGS="$CFLAGS $WERROR $1" AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,)], [ovs_cv_name[]=yes], [ovs_cv_name[]=no]) CFLAGS="$ovs_save_CFLAGS"]) if test $ovs_cv_name = yes; then @@ -356,6 +420,21 @@ AC_DEFUN([OVS_CHECK_CC_OPTION], fi ]) +dnl OVS_CHECK_WERROR +dnl +dnl Check whether the C compiler accepts -Werror. +dnl Sets $WERROR to "-Werror", if so, and otherwise to the empty string. +AC_DEFUN([OVS_CHECK_WERROR], + [WERROR= + _OVS_CHECK_CC_OPTION([-Werror], [WERROR=-Werror])]) + +dnl OVS_CHECK_CC_OPTION([OPTION], [ACTION-IF-ACCEPTED], [ACTION-IF-REJECTED]) +dnl Check whether the given C compiler OPTION is accepted. +dnl If so, execute ACTION-IF-ACCEPTED, otherwise ACTION-IF-REJECTED. +AC_DEFUN([OVS_CHECK_CC_OPTION], + [AC_REQUIRE([OVS_CHECK_WERROR]) + _OVS_CHECK_CC_OPTION([$1], [$2], [$3])]) + dnl OVS_ENABLE_OPTION([OPTION]) dnl Check whether the given C compiler OPTION is accepted. dnl If so, add it to WARNING_FLAGS. @@ -405,7 +484,7 @@ dnl OVS_MAKE_HAS_IF([if-true], [if-false]) dnl dnl Checks whether make has the GNU make $(if condition,then,else) extension. dnl Runs 'if-true' if so, 'if-false' otherwise. -AC_DEFUN([OVS_MAKE_HAS_IF], +AC_DEFUN([OVS_CHECK_MAKE_IF], [AC_CACHE_CHECK( [whether ${MAKE-make} has GNU make \$(if) extension], [ovs_cv_gnu_make_if], @@ -425,8 +504,28 @@ EOF ovs_cv_gnu_make_if=yes else ovs_cv_gnu_make_if=no - fi]) - AS_IF([test $ovs_cv_gnu_make_if = yes], [$1], [$2])]) + fi])]) + +dnl OVS_CHECK_GNU_MAKE +dnl +dnl Checks whether make is GNU make (because Linux kernel Makefiles +dnl only work with GNU make). +AC_DEFUN([OVS_CHECK_GNU_MAKE], + [AC_CACHE_CHECK( + [whether ${MAKE-make} is GNU make], + [ovs_cv_gnu_make], + [rm -f conftest.out + AS_ECHO(["$as_me:$LINENO: invoking ${MAKE-make} --version:"]) >&AS_MESSAGE_LOG_FD 2>&1 + ${MAKE-make} --version >conftest.out 2>&1 + cat conftest.out >&AS_MESSAGE_LOG_FD 2>&1 + result=`cat conftest.out` + rm -f conftest.mk conftest.out + + case $result in # ( + GNU*) ovs_cv_gnu_make=yes ;; # ( + *) ovs_cv_gnu_make=no ;; + esac]) + AM_CONDITIONAL([GNU_MAKE], [test $ovs_cv_gnu_make = yes])]) dnl OVS_CHECK_SPARSE_TARGET dnl @@ -447,11 +546,85 @@ AC_DEFUN([OVS_CHECK_SPARSE_TARGET], AC_SUBST([SPARSEFLAGS]) AC_SUBST([CGCCFLAGS])]) +dnl OVS_SPARSE_EXTRA_INCLUDES +dnl +dnl The cgcc script from "sparse" does not search gcc's default +dnl search path. Get the default search path from GCC and pass +dnl them to sparse. +AC_DEFUN([OVS_SPARSE_EXTRA_INCLUDES], + AC_SUBST([SPARSE_EXTRA_INCLUDES], + [`$CC -v -E - &1 >/dev/null | sed -n -e '/^#include.*search.*starts.*here:/,/^End.*of.*search.*list\./s/^ \(.*\)/-I \1/p' |grep -v /usr/lib | grep -x -v '\-I /usr/include' | tr \\\n ' ' `] )) + dnl OVS_ENABLE_SPARSE AC_DEFUN([OVS_ENABLE_SPARSE], [AC_REQUIRE([OVS_CHECK_SPARSE_TARGET]) - OVS_MAKE_HAS_IF( - [AC_CONFIG_COMMANDS_PRE( - [: ${SPARSE=sparse} - AC_SUBST([SPARSE]) - CC='$(if $(C),REAL_CC="'"$CC"'" CHECK="$(SPARSE) -I $(top_srcdir)/include/sparse $(SPARSEFLAGS)" cgcc $(CGCCFLAGS),'"$CC"')'])])]) + AC_REQUIRE([OVS_CHECK_MAKE_IF]) + AC_REQUIRE([OVS_SPARSE_EXTRA_INCLUDES]) + : ${SPARSE=sparse} + AC_SUBST([SPARSE]) + AC_CONFIG_COMMANDS_PRE( + [if test $ovs_cv_gnu_make_if = yes; then + CC='$(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 +dnl +dnl This checks for three known variants of pthreads functions for setting +dnl the name of the current thread: +dnl +dnl glibc: int pthread_setname_np(pthread_t, const char *name); +dnl NetBSD: int pthread_setname_np(pthread_t, const char *format, void *arg); +dnl FreeBSD: int pthread_set_name_np(pthread_t, const char *name); +dnl +dnl For glibc and FreeBSD, the arguments are just a thread and its name. For +dnl NetBSD, 'format' is a printf() format string and 'arg' is an argument to +dnl provide to it. +dnl +dnl This macro defines: +dnl +dnl glibc: HAVE_GLIBC_PTHREAD_SETNAME_NP +dnl NetBSD: HAVE_NETBSD_PTHREAD_SETNAME_NP +dnl FreeBSD: HAVE_PTHREAD_SET_NAME_NP +AC_DEFUN([OVS_CHECK_PTHREAD_SET_NAME], + [AC_CHECK_FUNCS([pthread_set_name_np]) + if test $ac_cv_func_pthread_set_name_np != yes; then + AC_CACHE_CHECK( + [for pthread_setname_np() variant], + [ovs_cv_pthread_setname_np], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM([#include + ], [pthread_setname_np(pthread_self(), "name");])], + [ovs_cv_pthread_setname_np=glibc], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM([#include +], [pthread_setname_np(pthread_self(), "%s", "name");])], + [ovs_cv_pthread_setname_np=netbsd], + [ovs_cv_pthread_setname_np=none])])]) + case $ovs_cv_pthread_setname_np in # ( + glibc) + AC_DEFINE( + [HAVE_GLIBC_PTHREAD_SETNAME_NP], [1], + [Define to 1 if pthread_setname_np() is available and takes 2 parameters (like glibc).]) + ;; # ( + netbsd) + AC_DEFINE( + [HAVE_NETBSD_PTHREAD_SETNAME_NP], [1], + [Define to 1 if pthread_setname_np() is available and takes 3 parameters (like NetBSD).]) + ;; + esac + fi]) + +dnl OVS_CHECK_LINUX_HOST. +dnl +dnl Checks whether we're building for a Linux host, based on the presence of +dnl the __linux__ preprocessor symbol, and sets up an Automake conditional +dnl LINUX based on the result. +AC_DEFUN([OVS_CHECK_LINUX_HOST], + [AC_CACHE_CHECK( + [whether __linux__ is defined], + [ovs_cv_linux], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([enum { LINUX = __linux__};], [])], + [ovs_cv_linux=true], + [ovs_cv_linux=false])]) + AM_CONDITIONAL([LINUX], [$ovs_cv_linux])])