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dpif-netdev: implement subtable lookup validation.
[mirror_ovs.git] / acinclude.m4
CommitLineData
064af421
BP		 1# -*- autoconf -*-
2
0cdd5b13 3# Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019 Nicira, Inc.
064af421 4#
a14bc59f
BP		 5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at:
064af421 8#
a14bc59f
BP		 9# http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
064af421 16
e90e115a
HH		 17dnl Set OVS DPCLS Autovalidator as default subtable search at compile time?
18dnl This enables automatically running all unit tests with all DPCLS
19dnl implementations.
20AC_DEFUN([OVS_CHECK_DPCLS_AUTOVALIDATOR], [
21 AC_ARG_ENABLE([autovalidator],
22 [AC_HELP_STRING([--enable-autovalidator], [Enable DPCLS autovalidator as default subtable search implementation.])],
23 [autovalidator=yes],[autovalidator=no])
24 AC_MSG_CHECKING([whether DPCLS Autovalidator is default implementation])
25 if test "$autovalidator" != yes; then
26 AC_MSG_RESULT([no])
27 else
28 OVS_CFLAGS="$OVS_CFLAGS -DDPCLS_AUTOVALIDATOR_DEFAULT"
29 AC_MSG_RESULT([yes])
30 fi
31])
32
a64e37a1
BP		 33dnl OVS_ENABLE_WERROR
34AC_DEFUN([OVS_ENABLE_WERROR],
35 [AC_ARG_ENABLE(
36 [Werror],
37 [AC_HELP_STRING([--enable-Werror], [Add -Werror to CFLAGS])],
38 [], [enable_Werror=no])
39 AC_CONFIG_COMMANDS_PRE(
40 [if test "X$enable_Werror" = Xyes; then
95626395 41 OVS_CFLAGS="$OVS_CFLAGS -Werror"
308bf988
BP		 42 fi])
43
44 # Unless --enable-Werror is specified, report but do not fail the build
45 # for errors reported by flake8.
46 if test "X$enable_Werror" = Xyes; then
47 FLAKE8_WERROR=
48 else
49 FLAKE8_WERROR=-
50 fi
df265086
BP		 51 AC_SUBST([FLAKE8_WERROR])
52
53 # If --enable-Werror is specified, fail the build on sparse warnings.
54 if test "X$enable_Werror" = Xyes; then
55 SPARSE_WERROR=-Wsparse-error
56 else
57 SPARSE_WERROR=
58 fi
59 AC_SUBST([SPARSE_WERROR])])
a64e37a1 60
e3438006 61dnl OVS_CHECK_LINUX
064af421 62dnl
997d327d 63dnl Configure linux kernel source tree
e3438006 64AC_DEFUN([OVS_CHECK_LINUX], [
8a2d6596
BP		 65 AC_ARG_WITH([linux],
66 [AC_HELP_STRING([--with-linux=/path/to/linux],
67 [Specify the Linux kernel build directory])])
68 AC_ARG_WITH([linux-source],
69 [AC_HELP_STRING([--with-linux-source=/path/to/linux-source],
70 [Specify the Linux kernel source directory
a0903134
YT		 71 (usually figured out automatically from build
72 directory)])])
8a2d6596
BP		 73
74 # Deprecated equivalents to --with-linux, --with-linux-source.
75 AC_ARG_WITH([l26])
76 AC_ARG_WITH([l26-source])
77
78 if test X"$with_linux" != X; then
79 KBUILD=$with_linux
80 elif test X"$with_l26" != X; then
81 KBUILD=$with_l26
82 AC_MSG_WARN([--with-l26 is deprecated, please use --with-linux instead])
83 else
84 KBUILD=
85 fi
86
87 if test X"$KBUILD" != X; then
88 if test X"$with_linux_source" != X; then
89 KSRC=$with_linux_source
90 elif test X"$with_l26_source" != X; then
91 KSRC=$with_l26_source
92 AC_MSG_WARN([--with-l26-source is deprecated, please use --with-linux-source instead])
0a89c170
BP		 93 else
94 KSRC=
8a2d6596
BP		 95 fi
96 elif test X"$with_linux_source" != X || test X"$with_l26_source" != X; then
97 AC_MSG_ERROR([Linux source directory may not be specified without Linux build directory])
98 fi
99
e3438006
BP		 100 if test -n "$KBUILD"; then
101 KBUILD=`eval echo "$KBUILD"`
102 case $KBUILD in
0b6d72fc 103 /*) ;;
e3438006 104 *) KBUILD=`pwd`/$KBUILD ;;
0b6d72fc 105 esac
064af421 106
7c9e113b
BP		 107 # The build directory is what the user provided.
108 # Make sure that it exists.
8a2d6596 109 AC_MSG_CHECKING([for Linux build directory])
e3438006 110 if test -d "$KBUILD"; then
a0903134
YT		 111 AC_MSG_RESULT([$KBUILD])
112 AC_SUBST(KBUILD)
064af421 113 else
a0903134
YT		 114 AC_MSG_RESULT([no])
115 AC_ERROR([source dir $KBUILD doesn't exist])
064af421
BP		 116 fi
117
7c9e113b 118 # Debian breaks kernel headers into "source" header and "build" headers.
e3438006 119 # We want the source headers, but $KBUILD gives us the "build" headers.
7c9e113b 120 # Use heuristics to find the source headers.
8a2d6596 121 AC_MSG_CHECKING([for Linux source directory])
e3438006
BP		 122 if test -n "$KSRC"; then
123 KSRC=`eval echo "$KSRC"`
124 case $KSRC in
f5fb5de6 125 /*) ;;
e3438006 126 *) KSRC=`pwd`/$KSRC ;;
b57f675c 127 esac
e3438006 128 if test ! -e $KSRC/include/linux/kernel.h; then
53319f95 129 AC_MSG_ERROR([$KSRC is not a kernel source directory])
f5fb5de6
BP		 130 fi
131 else
e3438006
BP		 132 KSRC=$KBUILD
133 if test ! -e $KSRC/include/linux/kernel.h; then
fe0731b1
BP		 134 # Debian kernel build Makefiles tend to include a line of the form:
135 # MAKEARGS := -C /usr/src/linux-headers-3.2.0-1-common O=/usr/src/linux-headers-3.2.0-1-486
136 # First try to extract the source directory from this line.
137 KSRC=`sed -n 's/.*-C \([[^ ]]*\).*/\1/p' "$KBUILD"/Makefile`
138 if test ! -e "$KSRC"/include/linux/kernel.h; then
139 # Didn't work. Fall back to name-based heuristics that used to work.
140 case `echo "$KBUILD" | sed 's,/*$,,'` in # (
141 */build)
142 KSRC=`echo "$KBUILD" | sed 's,/build/*$,/source,'`
143 ;; # (
144 *)
145 KSRC=`(cd $KBUILD && pwd -P) | sed 's,-[[^-]]*$,-common,'`
146 ;;
147 esac
148 fi
f5fb5de6 149 fi
fe0731b1 150 if test ! -e "$KSRC"/include/linux/kernel.h; then
8a2d6596 151 AC_MSG_ERROR([cannot find source directory (please use --with-linux-source)])
7c9e113b
BP		 152 fi
153 fi
e3438006 154 AC_MSG_RESULT([$KSRC])
7c9e113b
BP		 155
156 AC_MSG_CHECKING([for kernel version])
71fe9970 157 version=`sed -n 's/^VERSION = //p' "$KSRC/Makefile"`
e3438006
BP		 158 patchlevel=`sed -n 's/^PATCHLEVEL = //p' "$KSRC/Makefile"`
159 sublevel=`sed -n 's/^SUBLEVEL = //p' "$KSRC/Makefile"`
71fe9970 160 if test X"$version" = X || test X"$patchlevel" = X; then
7c9e113b 161 AC_ERROR([cannot determine kernel version])
71fe9970
BP		 162 elif test X"$sublevel" = X; then
163 kversion=$version.$patchlevel
164 else
165 kversion=$version.$patchlevel.$sublevel
7c9e113b 166 fi
71fe9970
BP		 167 AC_MSG_RESULT([$kversion])
168
2adada0e 169 if test "$version" -ge 5; then
ea58abe5 170 if test "$version" = 5 && test "$patchlevel" -le 5; then
2adada0e 171 : # Linux 5.x
d76aabea 172 else
ea58abe5 173 AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 5.5.x is not supported (please refer to the FAQ for advice)])
d76aabea 174 fi
2adada0e
YS		 175 elif test "$version" = 4; then
176 : # Linux 4.x
8063e095 177 elif test "$version" = 3 && test "$patchlevel" -ge 10; then
3afcde43 178 : # Linux 3.x
71fe9970 179 else
8063e095 180 AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version 3.10 or later is required])
064af421 181 fi
2520f452
IY		 182 if (test ! -e "$KBUILD"/include/linux/version.h && \
183 test ! -e "$KBUILD"/include/generated/uapi/linux/version.h)|| \
e3438006
BP		 184 (test ! -e "$KBUILD"/include/linux/autoconf.h && \
185 test ! -e "$KBUILD"/include/generated/autoconf.h); then
a0903134 186 AC_MSG_ERROR([Linux kernel source in $KBUILD is not configured])
064af421 187 fi
e3438006 188 OVS_CHECK_LINUX_COMPAT
064af421 189 fi
e3438006 190 AM_CONDITIONAL(LINUX_ENABLED, test -n "$KBUILD")
064af421
BP		 191])
192
292d5bd9
VB		 193dnl OVS_CHECK_LINUX_NETLINK
194dnl
195dnl Configure Linux netlink compat.
196AC_DEFUN([OVS_CHECK_LINUX_NETLINK], [
197 AC_COMPILE_IFELSE([
198 AC_LANG_PROGRAM([#include <linux/netlink.h>], [
199 struct nla_bitfield32 x = { 0 };
200 ])],
201 [AC_DEFINE([HAVE_NLA_BITFIELD32], [1],
202 [Define to 1 if struct nla_bitfield32 is available.])])
203])
204
1dc0da67
PB		 205dnl OVS_CHECK_LINUX_TC
206dnl
207dnl Configure Linux tc compat.
208AC_DEFUN([OVS_CHECK_LINUX_TC], [
209 AC_COMPILE_IFELSE([
210 AC_LANG_PROGRAM([#include <linux/pkt_cls.h>], [
292d5bd9 211 int x = TCA_ACT_FLAGS;
1dc0da67 212 ])],
292d5bd9
VB		 213 [AC_DEFINE([HAVE_TCA_ACT_FLAGS], [1],
214 [Define to 1 if TCA_ACT_FLAGS is available.])])
1dc0da67 215
c0a1df2e
RD		 216 AC_CHECK_MEMBERS([struct tcf_t.firstuse], [], [], [#include <linux/pkt_cls.h>])
217
1dc0da67
PB		 218 AC_COMPILE_IFELSE([
219 AC_LANG_PROGRAM([#include <linux/tc_act/tc_vlan.h>], [
220 int x = TCA_VLAN_PUSH_VLAN_PRIORITY;
221 ])],
222 [AC_DEFINE([HAVE_TCA_VLAN_PUSH_VLAN_PRIORITY], [1],
dd83253e 223 [Define to 1 if TCA_VLAN_PUSH_VLAN_PRIORITY is available.])])
1dc0da67 224
abef7959
JH		 225 AC_COMPILE_IFELSE([
226 AC_LANG_PROGRAM([#include <linux/tc_act/tc_mpls.h>], [
227 int x = TCA_MPLS_TTL;
228 ])],
229 [AC_DEFINE([HAVE_TCA_MPLS_TTL], [1],
230 [Define to 1 if HAVE_TCA_MPLS_TTL is available.])])
231
1dc0da67
PB		 232 AC_COMPILE_IFELSE([
233 AC_LANG_PROGRAM([#include <linux/tc_act/tc_tunnel_key.h>], [
4b12e454 234 int x = TCA_TUNNEL_KEY_ENC_TTL;
1dc0da67 235 ])],
4b12e454
OG		 236 [AC_DEFINE([HAVE_TCA_TUNNEL_KEY_ENC_TTL], [1],
237 [Define to 1 if TCA_TUNNEL_KEY_ENC_TTL is available.])])
e5b1657e
PB		 238
239 AC_COMPILE_IFELSE([
240 AC_LANG_PROGRAM([#include <linux/tc_act/tc_pedit.h>], [
241 int x = TCA_PEDIT_KEY_EX_HDR_TYPE_UDP;
242 ])],
243 [AC_DEFINE([HAVE_TCA_PEDIT_KEY_EX_HDR_TYPE_UDP], [1],
dd83253e 244 [Define to 1 if TCA_PEDIT_KEY_EX_HDR_TYPE_UDP is available.])])
7808b2b9
JH		 245
246 AC_COMPILE_IFELSE([
247 AC_LANG_PROGRAM([#include <linux/tc_act/tc_skbedit.h>], [
248 int x = TCA_SKBEDIT_FLAGS;
249 ])],
250 [AC_DEFINE([HAVE_TCA_SKBEDIT_FLAGS], [1],
251 [Define to 1 if TCA_SKBEDIT_FLAGS is available.])])
1dc0da67
PB		 252])
253
8c7130da
AC		 254dnl OVS_CHECK_LINUX_SCTP_CT
255dnl
256dnl Checks for kernels which need additional SCTP state
257AC_DEFUN([OVS_CHECK_LINUX_SCTP_CT], [
258 AC_COMPILE_IFELSE([
259 AC_LANG_PROGRAM([#include <linux/netfilter/nfnetlink.h>
260#include <linux/netfilter/nfnetlink_conntrack.h>
261#include <linux/netfilter/nf_conntrack_common.h>
262#include <linux/netfilter/nf_conntrack_sctp.h>], [
263 int x = SCTP_CONNTRACK_HEARTBEAT_SENT;
264 ])],
265 [AC_DEFINE([HAVE_SCTP_CONNTRACK_HEARTBEATS], [1],
266 [Define to 1 if SCTP_CONNTRACK_HEARTBEAT_SENT is available.])])
267])
268
fd4d4777
YHW		 269dnl OVS_CHECK_LINUX_VIRTIO_TYPES
270dnl
271dnl Checks for kernels that need virtio_types definition.
272AC_DEFUN([OVS_CHECK_LINUX_VIRTIO_TYPES], [
273 AC_COMPILE_IFELSE([
274 AC_LANG_PROGRAM([#include <linux/virtio_types.h>], [
275 __virtio16 x = 0;
276 ])],
277 [AC_DEFINE([HAVE_VIRTIO_TYPES], [1],
278 [Define to 1 if __virtio16 is available.])])
279])
280
f0d1ead8
IM		 281dnl OVS_FIND_DEPENDENCY(FUNCTION, SEARCH_LIBS, NAME_TO_PRINT)
282dnl
283dnl Check for a function in a library list.
284AC_DEFUN([OVS_FIND_DEPENDENCY], [
285 AC_SEARCH_LIBS([$1], [$2], [], [
286 AC_MSG_ERROR([unable to find $3, install the dependency package])
287 ])
288])
289
0de1b425
WT		 290dnl OVS_CHECK_LINUX_AF_XDP
291dnl
292dnl Check both Linux kernel AF_XDP and libbpf support
293AC_DEFUN([OVS_CHECK_LINUX_AF_XDP], [
294 AC_ARG_ENABLE([afxdp],
295 [AC_HELP_STRING([--enable-afxdp], [Enable AF-XDP support])],
296 [], [enable_afxdp=no])
297 AC_MSG_CHECKING([whether AF_XDP is enabled])
298 if test "$enable_afxdp" != yes; then
299 AC_MSG_RESULT([no])
300 AF_XDP_ENABLE=false
301 else
302 AC_MSG_RESULT([yes])
303 AF_XDP_ENABLE=true
304
305 AC_CHECK_HEADER([bpf/libbpf.h], [],
306 [AC_MSG_ERROR([unable to find bpf/libbpf.h for AF_XDP support])])
307
308 AC_CHECK_HEADER([linux/if_xdp.h], [],
309 [AC_MSG_ERROR([unable to find linux/if_xdp.h for AF_XDP support])])
310
311 AC_CHECK_HEADER([bpf/xsk.h], [],
312 [AC_MSG_ERROR([unable to find bpf/xsk.h for AF_XDP support])])
313
314 AC_CHECK_FUNCS([pthread_spin_lock], [],
315 [AC_MSG_ERROR([unable to find pthread_spin_lock for AF_XDP support])])
316
e8568993
YHW		 317 OVS_FIND_DEPENDENCY([numa_alloc_onnode], [numa], [libnuma])
318
0de1b425
WT		 319 AC_DEFINE([HAVE_AF_XDP], [1],
320 [Define to 1 if AF_XDP support is available and enabled.])
321 LIBBPF_LDADD=" -lbpf -lelf"
322 AC_SUBST([LIBBPF_LDADD])
e50547b5
WT		 323
324 AC_CHECK_DECL([xsk_ring_prod__needs_wakeup], [
325 AC_DEFINE([HAVE_XDP_NEED_WAKEUP], [1],
326 [XDP need wakeup support detected in xsk.h.])
327 ], [], [[#include <bpf/xsk.h>]])
0de1b425
WT		 328 fi
329 AM_CONDITIONAL([HAVE_AF_XDP], test "$AF_XDP_ENABLE" = true)
330])
331
8a9562d2
PS		 332dnl OVS_CHECK_DPDK
333dnl
334dnl Configure DPDK source tree
335AC_DEFUN([OVS_CHECK_DPDK], [
336 AC_ARG_WITH([dpdk],
337 [AC_HELP_STRING([--with-dpdk=/path/to/dpdk],
4c16ee48
MV		 338 [Specify the DPDK build directory])],
339 [have_dpdk=true])
8a9562d2 340
49df3c0f 341 AC_MSG_CHECKING([whether dpdk is enabled])
4c16ee48 342 if test "$have_dpdk" != true || test "$with_dpdk" = no; then
40b5ea86
BB		 343 AC_MSG_RESULT([no])
344 DPDKLIB_FOUND=false
345 else
346 AC_MSG_RESULT([yes])
347 case "$with_dpdk" in
348 yes)
349 DPDK_AUTO_DISCOVER="true"
5b5aa2d8
CE		 350 PKG_CHECK_MODULES_STATIC([DPDK], [libdpdk], [
351 DPDK_INCLUDE="$DPDK_CFLAGS"
352 DPDK_LIB="$DPDK_LIBS"], [
353 DPDK_INCLUDE="-I/usr/local/include/dpdk -I/usr/include/dpdk"
354 DPDK_LIB="-ldpdk"])
40b5ea86
BB		 355 ;;
356 *)
357 DPDK_AUTO_DISCOVER="false"
96195c09 358 DPDK_INCLUDE_PATH="$with_dpdk/include"
40b5ea86
BB		 359 # If 'with_dpdk' is passed install directory, point to headers
360 # installed in $DESTDIR/$prefix/include/dpdk
96195c09
CE		 361 if test -e "$DPDK_INCLUDE_PATH/rte_config.h"; then
362 DPDK_INCLUDE="-I$DPDK_INCLUDE_PATH"
363 elif test -e "$DPDK_INCLUDE_PATH/dpdk/rte_config.h"; then
364 DPDK_INCLUDE="-I$DPDK_INCLUDE_PATH/dpdk"
214ac6d4 365 fi
40b5ea86 366 DPDK_LIB_DIR="$with_dpdk/lib"
5b5aa2d8 367 DPDK_LIB="-ldpdk"
40b5ea86
BB		 368 ;;
369 esac
8a9562d2 370
95626395
TG		 371 ovs_save_CFLAGS="$CFLAGS"
372 ovs_save_LDFLAGS="$LDFLAGS"
96195c09 373 CFLAGS="$CFLAGS $DPDK_INCLUDE"
40b5ea86
BB		 374 if test "$DPDK_AUTO_DISCOVER" = "false"; then
375 LDFLAGS="$LDFLAGS -L${DPDK_LIB_DIR}"
376 fi
377
865cee2b
IM		 378 AC_CHECK_HEADERS([rte_config.h], [], [
379 AC_MSG_ERROR([unable to find rte_config.h in $with_dpdk])
380 ], [AC_INCLUDES_DEFAULT])
381
f0d1ead8
IM		 382 AC_CHECK_DECLS([RTE_LIBRTE_VHOST_NUMA, RTE_EAL_NUMA_AWARE_HUGEPAGES], [
383 OVS_FIND_DEPENDENCY([get_mempolicy], [numa], [libnuma])
384 ], [], [[#include <rte_config.h>]])
4b88d678 385
976c452a
CL		 386 AC_CHECK_DECL([RTE_LIBRTE_PMD_PCAP], [
387 OVS_FIND_DEPENDENCY([pcap_dump_close], [pcap], [libpcap])
388 ], [], [[#include <rte_config.h>]])
389
5bb068a7
CL		 390 AC_CHECK_DECL([RTE_LIBRTE_PMD_AF_XDP], [
391 LIBBPF_LDADD="-lbpf"
392 ], [], [[#include <rte_config.h>]])
393
f0d1ead8
IM		 394 AC_CHECK_DECL([RTE_LIBRTE_VHOST_NUMA], [
395 AC_DEFINE([VHOST_NUMA], [1], [NUMA Aware vHost support detected in DPDK.])
396 ], [], [[#include <rte_config.h>]])
fc3b425f 397
f0d1ead8
IM		 398 AC_CHECK_DECL([RTE_LIBRTE_MLX5_PMD], [dnl found
399 OVS_FIND_DEPENDENCY([mnl_attr_put], [mnl], [libmnl])
b926f577 400 AC_CHECK_DECL([RTE_IBVERBS_LINK_DLOPEN], [], [dnl not found
f0d1ead8
IM		 401 OVS_FIND_DEPENDENCY([mlx5dv_create_wq], [mlx5], [libmlx5])
402 OVS_FIND_DEPENDENCY([verbs_init_cq], [ibverbs], [libibverbs])
403 ], [[#include <rte_config.h>]])
404 ], [], [[#include <rte_config.h>]])
84844e3f 405
f0d1ead8 406 AC_CHECK_DECL([RTE_LIBRTE_MLX4_PMD], [dnl found
b926f577 407 AC_CHECK_DECL([RTE_IBVERBS_LINK_DLOPEN], [], [dnl not found
f0d1ead8
IM		 408 OVS_FIND_DEPENDENCY([mlx4dv_init_obj], [mlx4], [libmlx4])
409 OVS_FIND_DEPENDENCY([verbs_init_cq], [ibverbs], [libibverbs])
410 ], [[#include <rte_config.h>]])
411 ], [], [[#include <rte_config.h>]])
939bad9a 412
e2f37511
IM		 413 # DPDK uses dlopen to load plugins.
414 OVS_FIND_DEPENDENCY([dlopen], [dl], [libdl])
415
416 AC_MSG_CHECKING([whether linking with dpdk works])
417 LIBS="$DPDK_LIB $LIBS"
418 AC_LINK_IFELSE(
419 [AC_LANG_PROGRAM([#include <rte_config.h>
420 #include <rte_eal.h>],
421 [int rte_argc; char ** rte_argv;
422 rte_eal_init(rte_argc, rte_argv);])],
423 [AC_MSG_RESULT([yes])
424 DPDKLIB_FOUND=true],
425 [AC_MSG_RESULT([no])
426 if test "$DPDK_AUTO_DISCOVER" = "true"; then
427 AC_MSG_ERROR(m4_normalize([
428 Could not find DPDK library in default search path, Use --with-dpdk
429 to specify the DPDK library installed in non-standard location]))
430 else
431 AC_MSG_ERROR([Could not find DPDK libraries in $DPDK_LIB_DIR])
432 fi
433 ])
c1223b11 434
95626395
TG		 435 CFLAGS="$ovs_save_CFLAGS"
436 LDFLAGS="$ovs_save_LDFLAGS"
40b5ea86
BB		 437 if test "$DPDK_AUTO_DISCOVER" = "false"; then
438 OVS_LDFLAGS="$OVS_LDFLAGS -L$DPDK_LIB_DIR"
439 fi
96195c09 440 OVS_CFLAGS="$OVS_CFLAGS $DPDK_INCLUDE"
ab2a3154 441 OVS_ENABLE_OPTION([-mssse3])
8a9562d2 442
3c94676c 443 # DPDK pmd drivers are not linked unless --whole-archive is used.
d7310583
DDP		 444 #
445 # This happens because the rest of the DPDK code doesn't use any symbol in
446 # the pmd driver objects, and the drivers register themselves using an
447 # __attribute__((constructor)) function.
448 #
449 # These options are specified inside a single -Wl directive to prevent
450 # autotools from reordering them.
5b5aa2d8
CE		 451 #
452 # OTOH newer versions of dpdk pkg-config (generated with Meson)
453 # will already have flagged just the right set of libs with
454 # --whole-archive - in those cases do not wrap it once more.
455 case "$DPDK_LIB" in
456 *whole-archive*) DPDK_vswitchd_LDFLAGS=$DPDK_LIB;;
457 *) DPDK_vswitchd_LDFLAGS=-Wl,--whole-archive,$DPDK_LIB,--no-whole-archive
458 esac
9475dfeb 459 AC_SUBST([DPDK_vswitchd_LDFLAGS])
8a9562d2 460 AC_DEFINE([DPDK_NETDEV], [1], [System uses the DPDK module.])
8a9562d2
PS		 461 fi
462
40b5ea86 463 AM_CONDITIONAL([DPDK_NETDEV], test "$DPDKLIB_FOUND" = true)
8a9562d2
PS		 464])
465
8828e5c7 466dnl OVS_GREP_IFELSE(FILE, REGEX, [IF-MATCH], [IF-NO-MATCH])
064af421
BP		 467dnl
468dnl Greps FILE for REGEX. If it matches, runs IF-MATCH, otherwise IF-NO-MATCH.
8828e5c7
BP		 469dnl If IF-MATCH is empty then it defines to OVS_DEFINE(HAVE_<REGEX>), with
470dnl <REGEX> translated to uppercase.
064af421
BP		 471AC_DEFUN([OVS_GREP_IFELSE], [
472 AC_MSG_CHECKING([whether $2 matches in $1])
7507ec48
JG		 473 if test -f $1; then
474 grep '$2' $1 >/dev/null 2>&1
475 status=$?
476 case $status in
997d327d 477 0)
7507ec48 478 AC_MSG_RESULT([yes])
8828e5c7 479 m4_if([$3], [], [OVS_DEFINE([HAVE_]m4_toupper([$2]))], [$3])
7507ec48 480 ;;
997d327d 481 1)
7507ec48
JG		 482 AC_MSG_RESULT([no])
483 $4
484 ;;
997d327d 485 *)
7507ec48
JG		 486 AC_MSG_ERROR([grep exited with status $status])
487 ;;
488 esac
489 else
490 AC_MSG_RESULT([file not found])
491 $4
492 fi
064af421
BP		 493])
494
13dd4a97
JS		 495dnl OVS_FIND_FIELD_IFELSE(FILE, STRUCTURE, REGEX, [IF-MATCH], [IF-NO-MATCH])
496dnl
497dnl Looks for STRUCTURE in FILE. If it is found, greps for REGEX within the
498dnl structure definition. If this is successful, runs IF-MATCH, otherwise
499dnl IF_NO_MATCH. If IF-MATCH is empty then it defines to
500dnl OVS_DEFINE(HAVE_<STRUCTURE>_WITH_<REGEX>), with <STRUCTURE> and <REGEX>
501dnl translated to uppercase.
502AC_DEFUN([OVS_FIND_FIELD_IFELSE], [
503 AC_MSG_CHECKING([whether $2 has member $3 in $1])
504 if test -f $1; then
83a27884 505 awk '/$2.{/,/^}/' $1 2>/dev/null | grep '$3' >/dev/null
13dd4a97
JS		 506 status=$?
507 case $status in
508 0)
509 AC_MSG_RESULT([yes])
510 m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4])
511 ;;
512 1)
513 AC_MSG_RESULT([no])
514 $5
515 ;;
516 *)
517 AC_MSG_ERROR([grep exited with status $status])
518 ;;
519 esac
520 else
521 AC_MSG_RESULT([file not found])
522 $5
523 fi
524])
525
71ce9edd
JR		 526dnl OVS_FIND_PARAM_IFELSE(FILE, FUNCTION, REGEX, [IF-MATCH], [IF-NO-MATCH])
527dnl
528dnl Looks for FUNCTION in FILE. If it is found, greps for REGEX within
529dnl the function signature starting from the line matching FUNCTION
530dnl and ending with the line containing the closing parenthesis. If
531dnl this is successful, runs IF-MATCH, otherwise IF_NO_MATCH. If
532dnl IF-MATCH is empty then it defines to
533dnl OVS_DEFINE(HAVE_<FUNCTION>_WITH_<REGEX>), with <FUNCTION> and
534dnl <REGEX> translated to uppercase.
535AC_DEFUN([OVS_FIND_PARAM_IFELSE], [
536 AC_MSG_CHECKING([whether $2 has parameter $3 in $1])
537 if test -f $1; then
538 awk '/$2[[ \t\n]]*\(/,/\)/' $1 2>/dev/null | grep '$3' >/dev/null
539 status=$?
540 case $status in
541 0)
542 AC_MSG_RESULT([yes])
543 m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4])
544 ;;
545 1)
546 AC_MSG_RESULT([no])
547 $5
548 ;;
549 *)
550 AC_MSG_ERROR([grep exited with status $status])
551 ;;
552 esac
553 else
554 AC_MSG_RESULT([file not found])
555 $5
556 fi
557])
558
82b7e6d1
GR		 559dnl OVS_FIND_OP_PARAM_IFELSE(FILE, OP, REGEX, [IF-MATCH], [IF-NO-MATCH])
560dnl
561dnl Looks for OP in FILE. If it is found, greps for REGEX within the
562dnl OP definition. If this is successful, runs IF-MATCH, otherwise
563dnl IF_NO_MATCH. If IF-MATCH is empty then it defines to
564dnl OVS_DEFINE(HAVE_<OP>_WITH_<REGEX>), with <OP> and <REGEX>
565dnl translated to uppercase.
566AC_DEFUN([OVS_FIND_OP_PARAM_IFELSE], [
567 AC_MSG_CHECKING([whether $2 has member $3 in $1])
568 if test -f $1; then
569 awk '/$2[[ \t\n]]*\)\(/,/;/' $1 2>/dev/null | grep '$3' >/dev/null
570 status=$?
571 case $status in
572 0)
573 AC_MSG_RESULT([yes])
574 m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4])
575 ;;
576 1)
577 AC_MSG_RESULT([no])
578 $5
579 ;;
580 *)
581 AC_MSG_ERROR([grep exited with status $status])
582 ;;
583 esac
584 else
585 AC_MSG_RESULT([file not found])
586 $5
587 fi
588])
589
064af421
BP		 590dnl OVS_DEFINE(NAME)
591dnl
592dnl Defines NAME to 1 in kcompat.h.
593AC_DEFUN([OVS_DEFINE], [
22bcc0e7 594 echo '#define $1 1' >> datapath/linux/kcompat.h.new
064af421
BP		 595])
596
e3438006 597dnl OVS_CHECK_LINUX_COMPAT
064af421 598dnl
8063e095 599dnl Runs various Autoconf checks on the Linux kernel source in
e3438006
BP		 600dnl the directory in $KBUILD.
601AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
22bcc0e7
JG		 602 rm -f datapath/linux/kcompat.h.new
603 mkdir -p datapath/linux
604 : > datapath/linux/kcompat.h.new
4aa13c0c 605
e23775f2
PS		 606 echo '#include <linux/version.h>
607#ifndef RHEL_RELEASE_CODE
608#define RHEL_RELEASE_CODE 0
609#define RHEL_RELEASE_VERSION(a, b) 0
610#endif' >> datapath/linux/kcompat.h.new
611
e3438006 612 OVS_GREP_IFELSE([$KSRC/arch/x86/include/asm/checksum_32.h], [src_err,],
25fb3596
JG		 613 [OVS_DEFINE([HAVE_CSUM_COPY_DBG])])
614
db1dcb23
DB		 615 OVS_GREP_IFELSE([$KSRC/include/net/ip6_fib.h], [rt6_get_cookie],
616 [OVS_DEFINE([HAVE_RT6_GET_COOKIE])])
617
33f9c873
GR		 618 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_stub],
619 [dst_entry])
e23775f2
PS		 620 OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup.*net],
621 [OVS_DEFINE([HAVE_IPV6_DST_LOOKUP_NET])])
5519e384
YHW		 622 OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup_flow.*net],
623 [OVS_DEFINE([HAVE_IPV6_DST_LOOKUP_FLOW_NET])])
e23775f2 624 OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_stub])
5519e384 625 OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup_flow])
e23775f2 626
e3438006 627 OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [ERR_CAST])
4303ec34 628 OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [IS_ERR_OR_NULL])
54125dd0 629 OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [PTR_ERR_OR_ZERO])
4aa13c0c 630
8aef057b 631 OVS_GREP_IFELSE([$KSRC/include/linux/jump_label.h], [static_branch_unlikely(],
6660a959 632 [OVS_DEFINE([HAVE_UPSTREAM_STATIC_KEY])])
8aef057b
YHW		 633 OVS_GREP_IFELSE([$KSRC/include/linux/jump_label.h], [DEFINE_STATIC_KEY_FALSE],
634 [OVS_DEFINE([HAVE_DEFINE_STATIC_KEY])])
6660a959 635
d923a695 636 OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [eth_hw_addr_random])
e2f3178f 637 OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [ether_addr_copy])
d923a695 638
e23775f2
PS		 639 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [IFLA_GENEVE_TOS])
640 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [rtnl_link_stats64])
641 OVS_GREP_IFELSE([$KSRC/include/linux/if_link.h], [rtnl_link_stats64])
d923a695 642 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_set_encap_proto])
ec96e663 643 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_hwaccel_push_inside])
9feb5bda 644 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [__vlan_hwaccel_clear_tag])
d923a695 645
e3438006 646 OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [ipv4_is_multicast])
46d69d18 647 OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [proto_ports_offset])
2ea82414
PS		 648 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*dst_entry],
649 [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_DST_ENTRY])])
e23775f2
PS		 650 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*net],
651 [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_NET])])
652
13dd4a97
JS		 653 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [inet_get_local_port_range.*net],
654 [OVS_DEFINE([HAVE_INET_GET_LOCAL_PORT_RANGE_USING_NET])])
39c0ff22
JS		 655 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_defrag.*net],
656 [OVS_DEFINE([HAVE_IP_DEFRAG_TAKES_NET])])
0374bcbe
EB		 657 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h],
658 [ip_do_fragment], [net],
659 [OVS_DEFINE([HAVE_IP_DO_FRAGMENT_TAKES_NET])])
0643a78b
PS		 660 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h],
661 [ip_local_out], [net],
662 [OVS_DEFINE([HAVE_IP_LOCAL_OUT_TAKES_NET])])
663
cfda4537 664 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_skb_dst_mtu])
0f09d6e3
JS		 665
666 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [IPSKB_FRAG_PMTU],
667 [OVS_DEFINE([HAVE_CORRECT_MRU_HANDLING])])
06f1a61a 668 OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], [__ip_tunnel_change_mtu])
595e069a
JS		 669 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [hashfn.*const],
670 [OVS_DEFINE([HAVE_INET_FRAGS_CONST])])
8f00ece9
JS		 671 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [last_in],
672 [OVS_DEFINE([HAVE_INET_FRAGS_LAST_IN])])
e0d45da3 673 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evicting])
ccd0a13b 674 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evictor])
91408ae0
JS		 675 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags],
676 [frags_work])
d1c390e6
JS		 677 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags],
678 [rwlock])
e0d45da3
JS		 679 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_queue],
680 [list_evictor])
38f45380 681 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_lru_move])
6ccf21ca
YHW		 682 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/inet_frag.h],
683 [sub_frag_mem_limit], [struct.netns_frags],
684 [OVS_DEFINE([HAVE_SUB_FRAG_MEM_LIMIT_ARG_STRUCT_NETNS_FRAGS])])
685 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [void.*inet_frags_init],
686 [OVS_DEFINE([HAVE_VOID_INET_FRAGS_INIT])])
401da7b9
JS		 687 OVS_GREP_IFELSE([$KSRC/include/net/inetpeer.h], [vif],
688 [OVS_DEFINE([HAVE_INETPEER_VIF_SUPPORT])])
8f00ece9 689
f2252c61
PS		 690 dnl Check for dst_cache and ipv6 lable to use backported tunnel infrastructure.
691 dnl OVS does not really need ipv6 label field, but its presence signifies that
692 dnl the stack has all required ipv6 support.
693 dnl OVS also does not need dst_cache But this dependency allows us to write
694 dnl much cleaner code.
695
3259c4ff
PS		 696 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ip_tunnels.h], [ip_tunnel_key],
697 [label],
698 [OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h],
699 [iptunnel_pull_offloads],
997d327d 700 [OVS_GREP_IFELSE([$KSRC/include/net/dst_cache.h], [dst_cache],
e1ededf4
GR		 701 [OVS_GREP_IFELSE([$KSRC/include/net/erspan.h], [erspan_md2],
702 [OVS_DEFINE([USE_UPSTREAM_TUNNEL])])])])])
4aa13c0c 703
138df3e5
GR		 704 OVS_GREP_IFELSE([$KSRC/include/net/dst_cache.h], [dst_cache],
705 [OVS_DEFINE([USE_BUILTIN_DST_CACHE])])
65590144
YHW		 706 OVS_GREP_IFELSE([$KSRC/include/net/mpls.h], [mpls_hdr],
707 [OVS_DEFINE([MPLS_HEADER_IS_L3])])
fdce83a3
PS		 708 OVS_GREP_IFELSE([$KSRC/include/linux/net.h], [sock_create_kern.*net],
709 [OVS_DEFINE([HAVE_SOCK_CREATE_KERN_NET])])
aad7cb91 710 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_fill_metadata_dst])
e3438006
BP		 711 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_disable_lro])
712 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_stats])
713 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_by_index_rcu])
3f506f07 714 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_recursion_level])
42d5dd95 715 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [__skb_gso_segment])
96b82f6d 716 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [skb_gso_error_unwind])
42d5dd95 717 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [can_checksum_protocol])
e23775f2 718 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_get_iflink])
0a0d9095
PS		 719 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_features_check],
720 [OVS_DEFINE([USE_UPSTREAM_TUNNEL_GSO])])
f2252c61
PS		 721 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_vxlan_port])
722 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_geneve_port])
e2e11c89 723 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_udp_tunnel_add])
d1890de5 724 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netdev_features_t])
8063e095
PS		 725 dnl Ubuntu kernel 3.13 has defined this struct but not used for netdev->tstats.
726 dnl So check type of tstats.
727 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [pcpu_sw_netstats.*tstats],
728 [OVS_DEFINE([HAVE_PCPU_SW_NETSTATS])])
e23775f2
PS		 729 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netif_needs_gso.*net_device],
730 [OVS_DEFINE([HAVE_NETIF_NEEDS_GSO_NETDEV])])
a0c9fedc 731 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [skb_csum_hwoffload_help])
e23775f2
PS		 732 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload])
733 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload.*uoff],
734 [OVS_DEFINE([HAVE_UDP_OFFLOAD_ARG_UOFF])])
735 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [gro_remcsum])
8ce37339 736 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [IFF_PHONY_HEADROOM])
6ccf21ca
YHW		 737 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device_ops],
738 [extended])
7efb1e09
PS		 739 OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h],
740 [netdev_master_upper_dev_link], [upper_priv],
741 [OVS_DEFINE([HAVE_NETDEV_MASTER_UPPER_DEV_LINK_PRIV])])
b7ab7316
YHW		 742 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h],
743 [netdev_master_upper_dev_link_rh],
744 [OVS_DEFINE([HAVE_NETDEV_MASTER_UPPER_DEV_LINK_RH])])
745
6c0bf091
JW		 746 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device],
747 [max_mtu])
39ca3383
YHW		 748 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device_ops_extended],
749 [ndo_change_mtu], [OVS_DEFINE([HAVE_RHEL7_MAX_MTU])])
140c8971
PM		 750 OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h],
751 [dev_change_flags], [extack],
752 [OVS_DEFINE([HAVE_DEV_CHANGE_FLAGS_TAKES_EXTACK])])
e23775f2
PS		 753
754 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_state])
4fdec898
FW		 755 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_state],
756 [struct net ], [OVS_DEFINE([HAVE_NF_HOOK_STATE_NET])])
e23775f2 757 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_register_net_hook])
cd7330d0
PS		 758 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn.*nf_hook_ops],
759 [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_OPS])])
0643a78b
PS		 760 OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn], [priv],
761 [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_PRIV])])
762 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops],
763 [owner], [OVS_DEFINE([HAVE_NF_HOOKS_OPS_OWNER])])
179fccce 764 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [NFPROTO_INET])
d42fb06d 765 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [CONFIG_NF_NAT_NEEDED])
179fccce 766
0643a78b 767
e4e04c3b 768 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter_ipv6.h], [nf_ipv6_ops],
2b64e8fc 769 [fragment.*sock], [OVS_DEFINE([HAVE_NF_IPV6_OPS_FRAGMENT])])
e2f3178f 770
6d9b6937
JR		 771 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
772 [nf_conn], [struct timer_list[[ \t]]*timeout],
773 [OVS_DEFINE([HAVE_NF_CONN_TIMER])])
774 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
775 [nf_ct_delete(], [OVS_DEFINE([HAVE_NF_CT_DELETE])])
776
71ce9edd
JR		 777 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
778 [nf_ct_tmpl_alloc], [nf_conntrack_zone],
057772cf 779 [OVS_DEFINE([HAVE_NF_CT_TMPL_ALLOC_TAKES_STRUCT_ZONE])])
71ce9edd
JR		 780 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
781 [nf_ct_get_tuplepr], [struct.net],
fa67f8e0 782 [OVS_DEFINE([HAVE_NF_CT_GET_TUPLEPR_TAKES_STRUCT_NET])])
dfa791b2
FW		 783 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
784 [nf_ct_set])
56ec5593
JS		 785 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
786 [nf_ct_is_untracked])
c1d728db
YHW		 787 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
788 [nf_ct_invert_tuplepr])
ac9cd0d2
JS		 789 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_zones.h],
790 [nf_ct_zone_init])
eca4cde0
YS		 791 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_l3proto.h],
792 [net_ns_get])
459064e7
JS		 793 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h],
794 [nf_connlabels_get])
7f2ab8cd
JR		 795 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h],
796 [nf_connlabels_get], [int bit],
797 [OVS_DEFINE([HAVE_NF_CONNLABELS_GET_TAKES_BIT])])
9f04eabe
JR		 798 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h],
799 [nf_conn_labels], [words])
0d330e42
JR		 800 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_ct_nat_ext_add])
801 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_alloc_null_binding])
fdec3c17 802 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_range2])
9ea96dce
YHW		 803 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_packet],
804 [OVS_DEFINE([HAVE_UPSTREAM_NF_NAT])])
0d330e42 805 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_seqadj.h], [nf_ct_seq_adjust])
74496432 806 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_count.h], [nf_conncount_gc_list],
4bfdefea
YS		 807 [OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_count.h],
808 [int nf_conncount_add],
809 [], [OVS_DEFINE([HAVE_UPSTREAM_NF_CONNCOUNT])])])
2fc8309b
YHW		 810 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_timeout.h], [nf_ct_set_timeout])
811 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_timeout.h], [struct nf_ct_timeout],
812 [OVS_DEFINE([HAVE_NF_CT_TIMEOUT])])
813 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_timeout.h],
814 [\(*nf_ct_timeout_find_get_hook\)], [net],
815 [OVS_DEFINE([HAVE_NF_CT_TIMEOUT_FIND_GET_HOOK_NET])])
057772cf 816
9048ab60
GR		 817 OVS_GREP_IFELSE([$KSRC/include/linux/random.h],
818 [prandom_u32[[\(]]],
819 [OVS_DEFINE([HAVE_PRANDOM_U32])])
f000c879 820 OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32_max])
4aa13c0c 821
e23775f2
PS		 822 OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [get_link_net])
823 OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [name_assign_type])
824 OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [rtnl_create_link.*src_net],
825 [OVS_DEFINE([HAVE_RTNL_CREATE_LINK_SRC_NET])])
826 OVS_GREP_IFELSE([$KSRC/include/net/net_namespace.h], [possible_net_t])
827
e3438006
BP		 828 OVS_GREP_IFELSE([$KSRC/include/linux/rcupdate.h], [rcu_read_lock_held], [],
829 [OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h],
cf6cb3a2 830 [rcu_read_lock_held])])
8fa52250 831 OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], [lockdep_rtnl_is_held])
3d10a0c8 832 OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], [net_rwsem])
8b7cc752
YS		 833 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/rtnetlink.h],
834 [rtnl_create_link], [extack],
835 [OVS_DEFINE([HAVE_RTNL_CREATE_LINK_TAKES_EXTACK])])
efcae7df 836 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [nf_reset_ct])
997d327d 837
6a33828d
BP		 838 # Check for the proto_data_valid member in struct sk_buff. The [^@]
839 # is necessary because some versions of this header remove the
840 # member but retain the kerneldoc comment that describes it (which
841 # starts with @). The brackets must be doubled because of m4
842 # quoting rules.
e3438006 843 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [[[^@]]proto_data_valid],
6a33828d 844 [OVS_DEFINE([HAVE_PROTO_DATA_VALID])])
ccb75a28 845 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_checksum_start_offset])
e23775f2 846 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol])
f2252c61 847 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol_type])
c1eb2500 848 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_inner_transport_offset])
d23239a2 849 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [kfree_skb_list])
60c4904f 850 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [rxhash])
5640cbd8
JG		 851 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u16.*rxhash],
852 [OVS_DEFINE([HAVE_U16_RXHASH])])
e3438006 853 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_dst(],
85444c3f 854 [OVS_DEFINE([HAVE_SKB_DST_ACCESSOR_FUNCS])])
997d327d 855 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
8828e5c7 856 [skb_copy_from_linear_data_offset])
b9c15df9
PS		 857 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
858 [skb_reset_tail_pointer])
e3438006 859 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_cow_head])
e3438006 860 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_warn_if_lro],
4aa13c0c 861 [OVS_DEFINE([HAVE_SKB_WARN_LRO])])
e3438006 862 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [consume_skb])
6c4ea27c 863 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_frag_page])
da4bbeb7 864 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_has_frag_list])
0aa6fda7 865 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_fill_page_desc])
d923a695 866 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_reset_mac_len])
dc0d542d 867 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_unclone])
1edc458d 868 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_orphan_frags])
c253c2e3
MC		 869 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_get_hash(],
870 [OVS_DEFINE([HAVE_SKB_GET_HASH])])
e2f3178f 871 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash])
705e9260
PS		 872 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [int.skb_zerocopy(],
873 [OVS_DEFINE([HAVE_SKB_ZEROCOPY])])
75e93287
FL		 874 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u8.*l4_rxhash],
875 [OVS_DEFINE([HAVE_L4_RXHASH])])
5cce04b6 876 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_ensure_writable])
97894370 877 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_pop])
a27c454e 878 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_vlan_pop])
97894370 879 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_push])
c6e13fcc 880 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash_if_not_l4])
ea3acd7a 881 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_postpush_rcsum])
73daf51a 882 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [lco_csum])
d3c313c1 883 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_nfct])
0ace0a26 884 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_put_zero])
4aa13c0c 885
e3438006 886 OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [__wsum],
e215ebca 887 [OVS_DEFINE([HAVE_CSUM_TYPES])])
8dbe1f9f
PS		 888 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/types.h], [__wsum],
889 [OVS_DEFINE([HAVE_CSUM_TYPES])])
4aa13c0c 890
e3438006
BP		 891 OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_replace4])
892 OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_unfold])
4aa13c0c 893
0d03e51c 894 OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [dst_discard_sk])
1dba1690 895 OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [__skb_dst_copy])
0d03e51c 896
114fce23
SG		 897 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_has_listeners])
898 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [mcgrp_offset])
14002a59 899 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [parallel_ops])
6233a1bd
TG		 900 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [netlink_has_listeners(net->genl_sock],
901 [OVS_DEFINE([HAVE_GENL_HAS_LISTENERS_TAKES_NET])])
c623ba49 902 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genlmsg_parse])
13dd4a97
JS		 903 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_notify.*family],
904 [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_FAMILY])])
f1e9590e 905 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_validate_flags])
0643a78b
PS		 906 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/genetlink.h],
907 [genl_notify], [net],
908 [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_NET])])
909
13dd4a97
JS		 910
911 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/genetlink.h],
912 [genl_multicast_group], [id])
fdce83a3 913 OVS_GREP_IFELSE([$KSRC/include/net/geneve.h], [geneve_hdr])
13dd4a97 914
cc1d0dea 915 OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_cisco_register])
e23775f2 916 OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_handle_offloads])
8abaa53c 917 OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [IP6_FH_F_SKIP_RH])
e23775f2 918 OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [ip6_local_out_sk])
2d3ef70b 919 OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [__ipv6_addr_jhash])
a94ebc39
JS		 920 OVS_GREP_IFELSE([$KSRC/include/net/ip6_fib.h], [rt6i.*u.dst],
921 [OVS_DEFINE([HAVE_RT6INFO_DST_UNION])])
213e1f54
JS		 922 OVS_GREP_IFELSE([$KSRC/include/net/ip6_route.h], [ip6_frag.*sock],
923 [OVS_DEFINE([HAVE_IP_FRAGMENT_TAKES_SOCK])])
924
91b37647 925 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_64bit])
e3438006 926 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_get_be16])
42d5dd95
TG		 927 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be16])
928 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be32])
929 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be64])
dd693f9b 930 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_in_addr])
e3438006 931 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_find_nested])
0fcc086d 932 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_is_last])
09c33996 933 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_nest_start_noflag])
6dbd98e6
SH		 934 OVS_GREP_IFELSE([$KSRC/include/linux/netlink.h], [void.*netlink_set_err],
935 [OVS_DEFINE([HAVE_VOID_NETLINK_SET_ERR])])
15702dc9
JB		 936 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netlink.h],
937 [nla_parse], [netlink_ext_ack],
938 [OVS_DEFINE([HAVE_NETLINK_EXT_ACK])])
4aa13c0c 939
c4e976db
JG		 940 OVS_GREP_IFELSE([$KSRC/include/net/sctp/checksum.h], [sctp_compute_cksum])
941
1f649f1c 942 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_insert_tag_set_proto])
17e3889f 943 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [__vlan_insert_tag])
e23775f2 944 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_get_protocol])
5c3f23fe 945 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [skb_vlan_tagged])
ca6da1b1 946 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [eth_type_vlan])
431488e6 947
aadd6ae9
JS		 948 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/dst_metadata.h],
949 [metadata_dst_alloc], [metadata_type])
950
09f27436
JG		 951 OVS_GREP_IFELSE([$KSRC/include/linux/u64_stats_sync.h], [u64_stats_fetch_begin_irq])
952
3174a818
TG		 953 OVS_GREP_IFELSE([$KSRC/include/net/vxlan.h], [struct vxlan_metadata],
954 [OVS_DEFINE([HAVE_VXLAN_METADATA])])
f6a0c895 955 OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_flow_src_port],
13dd4a97
JS		 956 [OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [inet_get_local_port_range(net],
957 [OVS_DEFINE([HAVE_UDP_FLOW_SRC_PORT])])])
958 OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_v4_check])
e23775f2 959 OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_gro_complete])
06aeda48
PS		 960 OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [sk_buff.*udp_tunnel_handle_offloads],
961 [OVS_DEFINE([HAVE_UDP_TUNNEL_HANDLE_OFFLOAD_RET_SKB])])
d7e58913
PS		 962 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_sock_cfg],
963 [gro_receive])
e23775f2
PS		 964
965 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [ignore_df],
f6a0c895
TG		 966 [OVS_DEFINE([HAVE_IGNORE_DF_RENAME])])
967 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netdevice.h], [NET_NAME_UNKNOWN],
968 [OVS_DEFINE([HAVE_NET_NAME_UNKNOWN])])
f285d3e7 969
b7ebebcd
PS		 970 OVS_GREP_IFELSE([$KSRC/include/net/sock.h], [sk_no_check_tx])
971 OVS_GREP_IFELSE([$KSRC/include/linux/udp.h], [no_check6_tx])
21a719d6
FL		 972 OVS_GREP_IFELSE([$KSRC/include/linux/utsrelease.h], [el6],
973 [OVS_DEFINE([HAVE_RHEL6_PER_CPU])])
c970aa4e
PS		 974 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/protocol.h],
975 [udp_add_offload], [net],
976 [OVS_DEFINE([HAVE_UDP_ADD_OFFLOAD_TAKES_NET])])
802d12b6
GR		 977 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/ipv6/nf_defrag_ipv6.h],
978 [nf_defrag_ipv6_enable], [net],
979 [OVS_DEFINE([HAVE_DEFRAG_ENABLE_TAKES_NET])])
bef862bc
GR		 980 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [family_list],
981 [OVS_DEFINE([HAVE_GENL_FAMILY_LIST])])
7f15e8dd
GR		 982 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device],
983 [needs_free_netdev],
984 [OVS_DEFINE([HAVE_NEEDS_FREE_NETDEV])])
14365643
GR		 985 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/vxlan.h], [vxlan_dev], [cfg],
986 [OVS_DEFINE([HAVE_VXLAN_DEV_CFG])])
ac8e3c6d 987 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h],
35fc0638
GR		 988 [nf_conntrack_helper_put],
989 [OVS_DEFINE(HAVE_NF_CONNTRACK_HELPER_PUT)])
4c941202
YHW		 990 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h],
991 [nf_nat_helper_try_module_get])
992 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h],
993 [nf_nat_helper_put])
f90e29c9 994 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],[[[[:space:]]]SKB_GSO_UDP[[[:space:]]]],
ad283644 995 [OVS_DEFINE([HAVE_SKB_GSO_UDP])])
db1dcb23
DB		 996 OVS_GREP_IFELSE([$KSRC/include/net/dst.h],[DST_NOCACHE],
997 [OVS_DEFINE([HAVE_DST_NOCACHE])])
6b51641a
GR		 998 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/rtnetlink.h], [rtnl_link_ops],
999 [extack],
1000 [OVS_DEFINE([HAVE_EXT_ACK_IN_RTNL_LINKOPS])])
a5220693
GR		 1001 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops],
1002 [list],
1003 [OVS_DEFINE([HAVE_LIST_IN_NF_HOOK_OPS])])
c0802634
EG		 1004 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netfilter/nf_conntrack_common.h],
1005 [IP_CT_UNTRACKED])
36d3520b
GR		 1006 OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h],
1007 [netdev_master_upper_dev_link], [extack],
1008 [OVS_DEFINE([HAVE_UPPER_DEV_LINK_EXTACK])])
a61fbfa4
GR		 1009 OVS_GREP_IFELSE([$KSRC/include/linux/compiler_types.h],
1010 [__LINUX_COMPILER_TYPES_H],
1011 [OVS_DEFINE([HAVE_LINUX_COMPILER_TYPES_H])])
6deeb55a
AB		 1012 OVS_GREP_IFELSE([$KSRC/include/linux/timekeeping.h],
1013 [ktime_get_ts64],
1014 [OVS_DEFINE([HAVE_KTIME_GET_TS64])])
b147f2e9
JB		 1015 OVS_GREP_IFELSE([$KSRC/include/net/net_namespace.h],
1016 [EXPORT_SYMBOL_GPL(peernet2id_alloc)],
1017 [OVS_DEFINE([HAVE_PEERNET2ID_ALLOC])])
1cb57039
AZ		 1018 OVS_GREP_IFELSE([$KSRC/include/linux/timekeeping.h],
1019 [ktime_get_ns],
1020 [OVS_DEFINE([HAVE_KTIME_GET_NS])])
b3e647ca
GR		 1021 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h],
1022 frag_percpu_counter_batch[],
1023 [OVS_DEFINE([HAVE_FRAG_PERCPU_COUNTER_BATCH])])
8e53509c
WT		 1024 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1025 [null_compute_pseudo],
1026 [OVS_DEFINE([HAVE_NULL_COMPUTE_PSEUDO])])
1027 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1028 [__skb_checksum_convert],
1029 [OVS_DEFINE([HAVE_SKB_CHECKSUM_CONVERT])])
1030 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device],
1031 [max_mtu],
1032 [OVS_DEFINE([HAVE_NET_DEVICE_MAX_MTU])])
8e53509c
WT		 1033 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ip6_tunnel.h], [__ip6_tnl_parm],
1034 [erspan_ver],
1035 [OVS_DEFINE([HAVE_IP6_TNL_PARM_ERSPAN_VER])])
1036 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1037 [SKB_GSO_IPXIP6],
1038 [OVS_DEFINE([HAVE_SKB_GSO_IPXIP6])])
1039 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ipv6.h],
1040 [ip6_make_flowlabel], [fl6],
1041 [OVS_DEFINE([HAVE_IP6_MAKE_FLOWLABEL_FL6])])
1042 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ipv6.h], [netns_sysctl_ipv6],
1043 [auto_flowlabels],
1044 [OVS_DEFINE([HAVE_NETNS_SYSCTL_IPV6_AUTO_FLOWLABELS])])
1045 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h],
1046 [netif_keep_dst],
1047 [OVS_DEFINE([HAVE_NETIF_KEEP_DST])])
1048 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device_ops],
1049 [ndo_get_iflink],
1050 [OVS_DEFINE([HAVE_NDO_GET_IFLINK])])
1051 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1052 [skb_set_inner_ipproto],
1053 [OVS_DEFINE([HAVE_SKB_SET_INNER_IPPROTO])])
1054 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1055 [tunnel_encap_types],
1056 [OVS_DEFINE([HAVE_TUNNEL_ENCAP_TYPES])])
1057 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1058 [IFLA_IPTUN_ENCAP_TYPE],
1059 [OVS_DEFINE([HAVE_IFLA_IPTUN_ENCAP_TYPE])])
1060 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1061 [IFLA_IPTUN_COLLECT_METADATA],
1062 [OVS_DEFINE([HAVE_IFLA_IPTUN_COLLECT_METADATA])])
e1ededf4
GR		 1063 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1064 [IFLA_GRE_ENCAP_DPORT])
1065 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1066 [IFLA_GRE_COLLECT_METADATA])
1067 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1068 [IFLA_GRE_IGNORE_DF])
1069 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1070 [IFLA_GRE_FWMARK])
1071 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1072 [IFLA_GRE_ERSPAN_INDEX])
1073 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1074 [IFLA_GRE_ERSPAN_HWID])
436d36db
GR		 1075 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1076 [IFLA_IPTUN_FWMARK])
10f24236
GR		 1077 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/skbuff.h], [sk_buff],
1078 [csum_valid],
1079 [OVS_DEFINE([HAVE_SKBUFF_CSUM_VALID])])
9feb5bda
MM		 1080 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/skbuff.h], [sk_buff],
1081 [vlan_present],
1082 [OVS_DEFINE([HAVE_SKBUFF_VLAN_PRESENT])])
10f24236
GR		 1083 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1084 [skb_checksum_simple_validate])
44a629b5
GR		 1085 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h],
1086 [void.*ndo_get_stats64],
1087 [OVS_DEFINE([HAVE_VOID_NDO_GET_STATS64])])
7f63d830
YS		 1088 OVS_GREP_IFELSE([$KSRC/include/linux/timer.h], [init_timer_deferrable],
1089 [OVS_DEFINE([HAVE_INIT_TIMER_DEFERRABLE])])
3f3b76f9
GR		 1090 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip_tunnels.h],
1091 [ip_tunnel_info_opts_set], [flags],
1092 [OVS_DEFINE([HAVE_IP_TUNNEL_INFO_OPTS_SET_FLAGS])])
4a90b277
GR		 1093 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags],
1094 [rnd],
1095 [OVS_DEFINE([HAVE_INET_FRAGS_RND])])
f7246940
GS		 1096 OVS_GREP_IFELSE([$KSRC/include/linux/overflow.h], [__LINUX_OVERFLOW_H],
1097 [OVS_DEFINE([HAVE_OVERFLOW_H])])
8f6d230f
YS		 1098 OVS_GREP_IFELSE([$KSRC/include/linux/overflow.h], [struct_size],
1099 [OVS_DEFINE([HAVE_STRUCT_SIZE])])
f7246940
GS		 1100 OVS_GREP_IFELSE([$KSRC/include/linux/mm.h], [kvmalloc_array],
1101 [OVS_DEFINE([HAVE_KVMALLOC_ARRAY])])
1102 OVS_GREP_IFELSE([$KSRC/include/linux/mm.h], [kvmalloc_node],
1103 [OVS_DEFINE([HAVE_KVMALLOC_NODE])])
945d6d1c
YS		 1104 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_l3proto.h],
1105 [nf_conntrack_l3proto],
1106 [OVS_DEFINE([HAVE_NF_CONNTRACK_L3PROATO_H])])
4fdec898
FW		 1107 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_core.h],
1108 [nf_conntrack_in], [nf_hook_state],
1109 [OVS_DEFINE([HAVE_NF_CONNTRACK_IN_TAKES_NF_HOOK_STATE])])
7857a9b4
FW		 1110 OVS_GREP_IFELSE([$KSRC/include/net/ipv6_frag.h], [IP6_DEFRAG_CONNTRACK_IN],
1111 [OVS_DEFINE([HAVE_IPV6_FRAG_H])])
7685ce31
GF		 1112 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h],
1113 [nf_ct_helper_ext_add], [nf_conntrack_helper],
1114 [OVS_DEFINE([HAVE_NF_CT_HELPER_EXT_ADD_TAKES_HELPER])])
6d97adee
GR		 1115 OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_calc_hlen],
1116 [OVS_DEFINE([HAVE_GRE_CALC_HLEN])])
1117 OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [ip_gre_calc_hlen],
1118 [OVS_DEFINE([HAVE_IP_GRE_CALC_HLEN])])
4bfdefea
YS		 1119 OVS_GREP_IFELSE([$KSRC/include/linux/rbtree.h], [rb_link_node_rcu],
1120 [OVS_DEFINE([HAVE_RBTREE_RB_LINK_NODE_RCU])])
6634cc8a
GR		 1121 OVS_GREP_IFELSE([$KSRC/include/net/dst_ops.h], [bool confirm_neigh],
1122 [OVS_DEFINE([HAVE_DST_OPS_CONFIRM_NEIGH])])
f77d85b1
GR		 1123 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [fqdir],
1124 [OVS_DEFINE([HAVE_INET_FRAG_FQDIR])])
2ef0f1c2
JB		 1125 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/genetlink.h], [genl_ops],
1126 [policy],
1127 [OVS_DEFINE([HAVE_GENL_OPS_POLICY])])
6db0f72d
JB		 1128 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h],
1129 [nla_parse_deprecated_strict],
1130 [OVS_DEFINE([HAVE_NLA_PARSE_DEPRECATED_STRICT])])
82b7e6d1
GR		 1131 OVS_FIND_OP_PARAM_IFELSE([$KSRC/include/net/rtnetlink.h],
1132 [validate], [extack],
1133 [OVS_DEFINE([HAVE_RTNLOP_VALIDATE_WITH_EXTACK])])
9ba57fc7
HZ		 1134 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1135 [__skb_set_hash])
1136 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [sw_hash])
1137 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_get_hash_raw])
21a719d6 1138
22bcc0e7
JG		 1139 if cmp -s datapath/linux/kcompat.h.new \
1140 datapath/linux/kcompat.h >/dev/null 2>&1; then
1141 rm datapath/linux/kcompat.h.new
064af421 1142 else
22bcc0e7 1143 mv datapath/linux/kcompat.h.new datapath/linux/kcompat.h
064af421
BP		 1144 fi
1145])
1146
f6eb6b20 1147dnl Checks for net/if_dl.h.
d30e714c 1148dnl
d23fa2ed
YT		 1149dnl (We use this as a proxy for checking whether we're building on FreeBSD
1150dnl or NetBSD.)
9360d9b7
EM		 1151AC_DEFUN([OVS_CHECK_IF_DL],
1152 [AC_CHECK_HEADER([net/if_dl.h],
1153 [HAVE_IF_DL=yes],
1154 [HAVE_IF_DL=no])
1155 AM_CONDITIONAL([HAVE_IF_DL], [test "$HAVE_IF_DL" = yes])
1156 if test "$HAVE_IF_DL" = yes; then
1157 AC_DEFINE([HAVE_IF_DL], [1],
1158 [Define to 1 if net/if_dl.h is available.])
d30e714c 1159
d23fa2ed 1160 # On these platforms we use libpcap to access network devices.
d30e714c 1161 AC_SEARCH_LIBS([pcap_open_live], [pcap])
9360d9b7
EM		 1162 fi])
1163
e50097d2
BP		 1164dnl Checks for buggy strtok_r.
1165dnl
1166dnl Some versions of glibc 2.7 has a bug in strtok_r when compiling
1167dnl with optimization that can cause segfaults:
1168dnl
1169dnl http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614.
1170AC_DEFUN([OVS_CHECK_STRTOK_R],
1171 [AC_CACHE_CHECK(
1172 [whether strtok_r macro segfaults on some inputs],
1173 [ovs_cv_strtok_r_bug],
1174 [AC_RUN_IFELSE(
1175 [AC_LANG_PROGRAM([#include <stdio.h>
1176 #include <string.h>
1177 ],
416e7132
BP		 1178 [[#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
1179 /* Assume bug is present, because relatively minor
1180 changes in compiler settings (e.g. optimization
1181 level) can make it crop up. */
1182 return 1;
1183 #else
1184 char string[] = ":::";
e50097d2
BP		 1185 char *save_ptr = (char *) 0xc0ffee;
1186 char *token1, *token2;
1187 token1 = strtok_r(string, ":", &save_ptr);
1188 token2 = strtok_r(NULL, ":", &save_ptr);
5819a7cd 1189 freopen ("/dev/null", "w", stdout);
e50097d2
BP		 1190 printf ("%s %s\n", token1, token2);
1191 return 0;
416e7132 1192 #endif
e50097d2
BP		 1193 ]])],
1194 [ovs_cv_strtok_r_bug=no],
1195 [ovs_cv_strtok_r_bug=yes],
1196 [ovs_cv_strtok_r_bug=yes])])
1197 if test $ovs_cv_strtok_r_bug = yes; then
1198 AC_DEFINE([HAVE_STRTOK_R_BUG], [1],
1199 [Define if strtok_r macro segfaults on some inputs])
1200 fi
1201])
1202
064af421
BP		 1203dnl ----------------------------------------------------------------------
1204dnl These macros are from GNU PSPP, with the following original license:
1205dnl Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
1206dnl This file is free software; the Free Software Foundation
1207dnl gives unlimited permission to copy and/or distribute it,
1208dnl with or without modifications, as long as this notice is preserved.
1209
50194820 1210AC_DEFUN([_OVS_CHECK_CC_OPTION], [dnl
726af752 1211 m4_define([ovs_cv_name], [ovs_cv_[]m4_translit([$1], [-= ], [__])])dnl
064af421
BP		 1212 AC_CACHE_CHECK([whether $CC accepts $1], [ovs_cv_name],
1213 [ovs_save_CFLAGS="$CFLAGS"
50194820
BP		 1214 dnl Include -Werror in the compiler options, because without -Werror
1215 dnl clang's GCC-compatible compiler driver does not return a failure
1216 dnl exit status even though it complains about options it does not
1217 dnl understand.
c2deac54
YT		 1218 dnl
1219 dnl Also, check stderr as gcc exits with status 0 for options
1220 dnl rejected at getopt level.
1221 dnl % touch /tmp/a.c
1222 dnl % gcc -g -c -Werror -Qunused-arguments /tmp/a.c; echo $?
1223 dnl gcc: unrecognized option '-Qunused-arguments'
1224 dnl 0
1225 dnl %
4c1e8cb9
BP		 1226 dnl
1227 dnl In addition, GCC does not complain about a -Wno-<foo> option that
1228 dnl it does not understand, unless it has another error to report, so
1229 dnl instead of testing for -Wno-<foo>, test for the positive version.
1230 CFLAGS="$CFLAGS $WERROR m4_bpatsubst([$1], [-Wno-], [-W])"
37f4615e
BP		 1231 AC_COMPILE_IFELSE(
1232 [AC_LANG_SOURCE([int x;])],
1233 [if test -s conftest.err && grep "unrecognized option" conftest.err
1234 then
1235 ovs_cv_name[]=no
1236 else
1237 ovs_cv_name[]=yes
1238 fi],
1239 [ovs_cv_name[]=no])
064af421
BP		 1240 CFLAGS="$ovs_save_CFLAGS"])
1241 if test $ovs_cv_name = yes; then
83f6c050 1242 m4_if([$2], [], [:], [$2])
064af421
BP		 1243 else
1244 m4_if([$3], [], [:], [$3])
1245 fi
1246])
1247
50194820
BP		 1248dnl OVS_CHECK_WERROR
1249dnl
1250dnl Check whether the C compiler accepts -Werror.
1251dnl Sets $WERROR to "-Werror", if so, and otherwise to the empty string.
1252AC_DEFUN([OVS_CHECK_WERROR],
1253 [WERROR=
1254 _OVS_CHECK_CC_OPTION([-Werror], [WERROR=-Werror])])
1255
1256dnl OVS_CHECK_CC_OPTION([OPTION], [ACTION-IF-ACCEPTED], [ACTION-IF-REJECTED])
1257dnl Check whether the given C compiler OPTION is accepted.
1258dnl If so, execute ACTION-IF-ACCEPTED, otherwise ACTION-IF-REJECTED.
1259AC_DEFUN([OVS_CHECK_CC_OPTION],
1260 [AC_REQUIRE([OVS_CHECK_WERROR])
1261 _OVS_CHECK_CC_OPTION([$1], [$2], [$3])])
1262
064af421
BP		 1263dnl OVS_ENABLE_OPTION([OPTION])
1264dnl Check whether the given C compiler OPTION is accepted.
d161c099 1265dnl If so, add it to WARNING_FLAGS.
064af421
BP		 1266dnl Example: OVS_ENABLE_OPTION([-Wdeclaration-after-statement])
1267AC_DEFUN([OVS_ENABLE_OPTION],
d161c099
BP		 1268 [OVS_CHECK_CC_OPTION([$1], [WARNING_FLAGS="$WARNING_FLAGS $1"])
1269 AC_SUBST([WARNING_FLAGS])])
c72e245a
BP		 1270
1271dnl OVS_CONDITIONAL_CC_OPTION([OPTION], [CONDITIONAL])
1272dnl Check whether the given C compiler OPTION is accepted.
1273dnl If so, enable the given Automake CONDITIONAL.
1274
1275dnl Example: OVS_CONDITIONAL_CC_OPTION([-Wno-unused], [HAVE_WNO_UNUSED])
1276AC_DEFUN([OVS_CONDITIONAL_CC_OPTION],
1277 [OVS_CHECK_CC_OPTION(
1278 [$1], [ovs_have_cc_option=yes], [ovs_have_cc_option=no])
1279 AM_CONDITIONAL([$2], [test $ovs_have_cc_option = yes])])
064af421 1280dnl ----------------------------------------------------------------------
ed2d4f6a
BP		 1281
1282dnl Check for too-old XenServer.
1283AC_DEFUN([OVS_CHECK_XENSERVER_VERSION],
1284 [AC_CACHE_CHECK([XenServer release], [ovs_cv_xsversion],
1285 [if test -e /etc/redhat-release; then
1286 ovs_cv_xsversion=`sed -n 's/^XenServer DDK release \([[^-]]*\)-.*/\1/p' /etc/redhat-release`
1287 fi
1288 if test -z "$ovs_cv_xsversion"; then
1289 ovs_cv_xsversion=none
1290 fi])
1291 case $ovs_cv_xsversion in
1292 none)
1293 ;;
1294
1295 [[1-9]][[0-9]]* | dnl XenServer 10 or later
1296 [[6-9]]* | dnl XenServer 6 or later
1297 5.[[7-9]]* | dnl XenServer 5.7 or later
1298 5.6.[[1-9]][[0-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.1000 or later
1299 5.6.[[2-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.200 or later
1300 5.6.1[[0-9]][[0-9]]) dnl Xenserver 5.6.100 or later
1301 ;;
1302
1303 *)
1304 AC_MSG_ERROR([This appears to be XenServer $ovs_cv_xsversion, but only XenServer 5.6.100 or later is supported. (If you are really using a supported version of XenServer, you may override this error message by specifying 'ovs_cv_xsversion=5.6.100' on the "configure" command line.)])
1305 ;;
1306 esac])
29d935d6 1307
643c0c34
BP		 1308dnl OVS_CHECK_SPARSE_TARGET
1309dnl
1310dnl The "cgcc" script from "sparse" isn't very good at detecting the
1311dnl target for which the code is being built. This helps it out.
1312AC_DEFUN([OVS_CHECK_SPARSE_TARGET],
1313 [AC_CACHE_CHECK(
1314 [target hint for cgcc],
1315 [ac_cv_sparse_target],
1316 [AS_CASE([`$CC -dumpmachine 2>/dev/null`],
1317 [i?86-* | athlon-*], [ac_cv_sparse_target=x86],
1318 [x86_64-*], [ac_cv_sparse_target=x86_64],
1319 [ac_cv_sparse_target=other])])
1320 AS_CASE([$ac_cv_sparse_target],
0cdd5b13
BP		 1321 [x86], [SPARSEFLAGS= CGCCFLAGS="-target=i86 -target=host_os_specs"],
1322 [x86_64], [SPARSEFLAGS=-m64 CGCCFLAGS="-target=x86_64 -target=host_os_specs"],
643c0c34 1323 [SPARSEFLAGS= CGCCFLAGS=])
346c6538 1324
e5273084 1325 dnl Get the default defines for vector instructions from compiler to
346c6538
IM		 1326 dnl allow "sparse" correctly check the same code that will be built.
1327 dnl Required for checking DPDK headers.
1328 AC_MSG_CHECKING([vector options for cgcc])
1329 VECTOR=$($CC -dM -E - < /dev/null | grep -E "MMX|SSE|AVX" | \
1330 cut -c 9- | sed 's/ /=/' | sed 's/^/-D/' | tr '\n' ' ')
1331 AC_MSG_RESULT([$VECTOR])
1332 CGCCFLAGS="$CGCCFLAGS $VECTOR"
1333
643c0c34
BP		 1334 AC_SUBST([SPARSEFLAGS])
1335 AC_SUBST([CGCCFLAGS])])
1336
32e96ab7
AZ		 1337dnl OVS_SPARSE_EXTRA_INCLUDES
1338dnl
1339dnl The cgcc script from "sparse" does not search gcc's default
1340dnl search path. Get the default search path from GCC and pass
1341dnl them to sparse.
1342AC_DEFUN([OVS_SPARSE_EXTRA_INCLUDES],
1343 AC_SUBST([SPARSE_EXTRA_INCLUDES],
1344 [`$CC -v -E - </dev/null 2>&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 ' ' `] ))
1345
29d935d6
BP		 1346dnl OVS_ENABLE_SPARSE
1347AC_DEFUN([OVS_ENABLE_SPARSE],
643c0c34 1348 [AC_REQUIRE([OVS_CHECK_SPARSE_TARGET])
32e96ab7 1349 AC_REQUIRE([OVS_SPARSE_EXTRA_INCLUDES])
372d58a4
BP		 1350 : ${SPARSE=sparse}
1351 AC_SUBST([SPARSE])
1352 AC_CONFIG_COMMANDS_PRE(
d4042a70
BP		 1353 [CC='$(if $(C:0=),env REAL_CC="'"$CC"'" CHECK="$(SPARSE) $(SPARSE_WERROR) -I $(top_srcdir)/include/sparse $(SPARSEFLAGS) $(SPARSE_EXTRA_INCLUDES) " cgcc $(CGCCFLAGS),'"$CC"')'])
1354
1355 AC_ARG_ENABLE(
1356 [sparse],
1357 [AC_HELP_STRING([--enable-sparse], [Run "sparse" by default])],
1358 [], [enable_sparse=no])
1359 AM_CONDITIONAL([ENABLE_SPARSE_BY_DEFAULT], [test $enable_sparse = yes])])
8a8cd0ac 1360
0eaaacac
FL		 1361dnl OVS_CTAGS_IDENTIFIERS
1362dnl
9ed9df77
FL		 1363dnl ctags ignores symbols with extras identifiers. This is a list of
1364dnl specially handled identifiers to be ignored. [ctags(1) -I <list>].
0eaaacac
FL		 1365AC_DEFUN([OVS_CTAGS_IDENTIFIERS],
1366 AC_SUBST([OVS_CTAGS_IDENTIFIERS_LIST],
9ed9df77 1367 ["OVS_LOCKABLE OVS_NO_THREAD_SAFETY_ANALYSIS OVS_REQ_RDLOCK+ OVS_ACQ_RDLOCK+ OVS_REQ_WRLOCK+ OVS_ACQ_WRLOCK+ OVS_REQUIRES+ OVS_ACQUIRES+ OVS_TRY_WRLOCK+ OVS_TRY_RDLOCK+ OVS_TRY_LOCK+ OVS_GUARDED_BY+ OVS_EXCLUDED+ OVS_RELEASES+ OVS_ACQ_BEFORE+ OVS_ACQ_AFTER+"]))
0eaaacac 1368
8a8cd0ac
BP		 1369dnl OVS_PTHREAD_SET_NAME
1370dnl
1371dnl This checks for three known variants of pthreads functions for setting
1372dnl the name of the current thread:
1373dnl
1374dnl glibc: int pthread_setname_np(pthread_t, const char *name);
1375dnl NetBSD: int pthread_setname_np(pthread_t, const char *format, void *arg);
1376dnl FreeBSD: int pthread_set_name_np(pthread_t, const char *name);
1377dnl
1378dnl For glibc and FreeBSD, the arguments are just a thread and its name. For
1379dnl NetBSD, 'format' is a printf() format string and 'arg' is an argument to
1380dnl provide to it.
1381dnl
1382dnl This macro defines:
1383dnl
1384dnl glibc: HAVE_GLIBC_PTHREAD_SETNAME_NP
1385dnl NetBSD: HAVE_NETBSD_PTHREAD_SETNAME_NP
1386dnl FreeBSD: HAVE_PTHREAD_SET_NAME_NP
1387AC_DEFUN([OVS_CHECK_PTHREAD_SET_NAME],
1388 [AC_CHECK_FUNCS([pthread_set_name_np])
1389 if test $ac_cv_func_pthread_set_name_np != yes; then
1390 AC_CACHE_CHECK(
1391 [for pthread_setname_np() variant],
1392 [ovs_cv_pthread_setname_np],
1393 [AC_LINK_IFELSE(
a0903134 1394 [AC_LANG_PROGRAM([#include <pthread.h>
8a8cd0ac 1395 ], [pthread_setname_np(pthread_self(), "name");])],
a0903134 1396 [ovs_cv_pthread_setname_np=glibc],
8a8cd0ac 1397 [AC_LINK_IFELSE(
a0903134 1398 [AC_LANG_PROGRAM([#include <pthread.h>
8a8cd0ac
BP		 1399], [pthread_setname_np(pthread_self(), "%s", "name");])],
1400 [ovs_cv_pthread_setname_np=netbsd],
a0903134 1401 [ovs_cv_pthread_setname_np=none])])])
8a8cd0ac
BP		 1402 case $ovs_cv_pthread_setname_np in # (
1403 glibc)
a0903134
YT		 1404 AC_DEFINE(
1405 [HAVE_GLIBC_PTHREAD_SETNAME_NP], [1],
1406 [Define to 1 if pthread_setname_np() is available and takes 2 parameters (like glibc).])
1407 ;; # (
8a8cd0ac 1408 netbsd)
a0903134
YT		 1409 AC_DEFINE(
1410 [HAVE_NETBSD_PTHREAD_SETNAME_NP], [1],
1411 [Define to 1 if pthread_setname_np() is available and takes 3 parameters (like NetBSD).])
1412 ;;
8a8cd0ac
BP		 1413 esac
1414 fi])
5020f5f0
BP		 1415
1416dnl OVS_CHECK_LINUX_HOST.
1417dnl
1418dnl Checks whether we're building for a Linux host, based on the presence of
1419dnl the __linux__ preprocessor symbol, and sets up an Automake conditional
1420dnl LINUX based on the result.
1421AC_DEFUN([OVS_CHECK_LINUX_HOST],
1422 [AC_CACHE_CHECK(
1423 [whether __linux__ is defined],
1424 [ovs_cv_linux],
1425 [AC_COMPILE_IFELSE(
1426 [AC_LANG_PROGRAM([enum { LINUX = __linux__};], [])],
1427 [ovs_cv_linux=true],
1428 [ovs_cv_linux=false])])
1429 AM_CONDITIONAL([LINUX], [$ovs_cv_linux])])
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