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064af421 BP |
1 | # -*- autoconf -*- |
2 | ||
344f6253 | 3 | # Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 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 | |
a64e37a1 BP |
17 | dnl OVS_ENABLE_WERROR |
18 | AC_DEFUN([OVS_ENABLE_WERROR], | |
19 | [AC_ARG_ENABLE( | |
20 | [Werror], | |
21 | [AC_HELP_STRING([--enable-Werror], [Add -Werror to CFLAGS])], | |
22 | [], [enable_Werror=no]) | |
23 | AC_CONFIG_COMMANDS_PRE( | |
24 | [if test "X$enable_Werror" = Xyes; then | |
95626395 | 25 | OVS_CFLAGS="$OVS_CFLAGS -Werror" |
308bf988 BP |
26 | fi]) |
27 | ||
28 | # Unless --enable-Werror is specified, report but do not fail the build | |
29 | # for errors reported by flake8. | |
30 | if test "X$enable_Werror" = Xyes; then | |
31 | FLAKE8_WERROR= | |
32 | else | |
33 | FLAKE8_WERROR=- | |
34 | fi | |
35 | AC_SUBST([FLAKE8_WERROR])]) | |
a64e37a1 | 36 | |
e3438006 | 37 | dnl OVS_CHECK_LINUX |
064af421 | 38 | dnl |
997d327d | 39 | dnl Configure linux kernel source tree |
e3438006 | 40 | AC_DEFUN([OVS_CHECK_LINUX], [ |
8a2d6596 BP |
41 | AC_ARG_WITH([linux], |
42 | [AC_HELP_STRING([--with-linux=/path/to/linux], | |
43 | [Specify the Linux kernel build directory])]) | |
44 | AC_ARG_WITH([linux-source], | |
45 | [AC_HELP_STRING([--with-linux-source=/path/to/linux-source], | |
46 | [Specify the Linux kernel source directory | |
a0903134 YT |
47 | (usually figured out automatically from build |
48 | directory)])]) | |
8a2d6596 BP |
49 | |
50 | # Deprecated equivalents to --with-linux, --with-linux-source. | |
51 | AC_ARG_WITH([l26]) | |
52 | AC_ARG_WITH([l26-source]) | |
53 | ||
54 | if test X"$with_linux" != X; then | |
55 | KBUILD=$with_linux | |
56 | elif test X"$with_l26" != X; then | |
57 | KBUILD=$with_l26 | |
58 | AC_MSG_WARN([--with-l26 is deprecated, please use --with-linux instead]) | |
59 | else | |
60 | KBUILD= | |
61 | fi | |
62 | ||
63 | if test X"$KBUILD" != X; then | |
64 | if test X"$with_linux_source" != X; then | |
65 | KSRC=$with_linux_source | |
66 | elif test X"$with_l26_source" != X; then | |
67 | KSRC=$with_l26_source | |
68 | AC_MSG_WARN([--with-l26-source is deprecated, please use --with-linux-source instead]) | |
0a89c170 BP |
69 | else |
70 | KSRC= | |
8a2d6596 BP |
71 | fi |
72 | elif test X"$with_linux_source" != X || test X"$with_l26_source" != X; then | |
73 | AC_MSG_ERROR([Linux source directory may not be specified without Linux build directory]) | |
74 | fi | |
75 | ||
e3438006 BP |
76 | if test -n "$KBUILD"; then |
77 | KBUILD=`eval echo "$KBUILD"` | |
78 | case $KBUILD in | |
0b6d72fc | 79 | /*) ;; |
e3438006 | 80 | *) KBUILD=`pwd`/$KBUILD ;; |
0b6d72fc | 81 | esac |
064af421 | 82 | |
7c9e113b BP |
83 | # The build directory is what the user provided. |
84 | # Make sure that it exists. | |
8a2d6596 | 85 | AC_MSG_CHECKING([for Linux build directory]) |
e3438006 | 86 | if test -d "$KBUILD"; then |
a0903134 YT |
87 | AC_MSG_RESULT([$KBUILD]) |
88 | AC_SUBST(KBUILD) | |
064af421 | 89 | else |
a0903134 YT |
90 | AC_MSG_RESULT([no]) |
91 | AC_ERROR([source dir $KBUILD doesn't exist]) | |
064af421 BP |
92 | fi |
93 | ||
7c9e113b | 94 | # Debian breaks kernel headers into "source" header and "build" headers. |
e3438006 | 95 | # We want the source headers, but $KBUILD gives us the "build" headers. |
7c9e113b | 96 | # Use heuristics to find the source headers. |
8a2d6596 | 97 | AC_MSG_CHECKING([for Linux source directory]) |
e3438006 BP |
98 | if test -n "$KSRC"; then |
99 | KSRC=`eval echo "$KSRC"` | |
100 | case $KSRC in | |
f5fb5de6 | 101 | /*) ;; |
e3438006 | 102 | *) KSRC=`pwd`/$KSRC ;; |
b57f675c | 103 | esac |
e3438006 | 104 | if test ! -e $KSRC/include/linux/kernel.h; then |
53319f95 | 105 | AC_MSG_ERROR([$KSRC is not a kernel source directory]) |
f5fb5de6 BP |
106 | fi |
107 | else | |
e3438006 BP |
108 | KSRC=$KBUILD |
109 | if test ! -e $KSRC/include/linux/kernel.h; then | |
fe0731b1 BP |
110 | # Debian kernel build Makefiles tend to include a line of the form: |
111 | # MAKEARGS := -C /usr/src/linux-headers-3.2.0-1-common O=/usr/src/linux-headers-3.2.0-1-486 | |
112 | # First try to extract the source directory from this line. | |
113 | KSRC=`sed -n 's/.*-C \([[^ ]]*\).*/\1/p' "$KBUILD"/Makefile` | |
114 | if test ! -e "$KSRC"/include/linux/kernel.h; then | |
115 | # Didn't work. Fall back to name-based heuristics that used to work. | |
116 | case `echo "$KBUILD" | sed 's,/*$,,'` in # ( | |
117 | */build) | |
118 | KSRC=`echo "$KBUILD" | sed 's,/build/*$,/source,'` | |
119 | ;; # ( | |
120 | *) | |
121 | KSRC=`(cd $KBUILD && pwd -P) | sed 's,-[[^-]]*$,-common,'` | |
122 | ;; | |
123 | esac | |
124 | fi | |
f5fb5de6 | 125 | fi |
fe0731b1 | 126 | if test ! -e "$KSRC"/include/linux/kernel.h; then |
8a2d6596 | 127 | AC_MSG_ERROR([cannot find source directory (please use --with-linux-source)]) |
7c9e113b BP |
128 | fi |
129 | fi | |
e3438006 | 130 | AC_MSG_RESULT([$KSRC]) |
7c9e113b BP |
131 | |
132 | AC_MSG_CHECKING([for kernel version]) | |
71fe9970 | 133 | version=`sed -n 's/^VERSION = //p' "$KSRC/Makefile"` |
e3438006 BP |
134 | patchlevel=`sed -n 's/^PATCHLEVEL = //p' "$KSRC/Makefile"` |
135 | sublevel=`sed -n 's/^SUBLEVEL = //p' "$KSRC/Makefile"` | |
71fe9970 | 136 | if test X"$version" = X || test X"$patchlevel" = X; then |
7c9e113b | 137 | AC_ERROR([cannot determine kernel version]) |
71fe9970 BP |
138 | elif test X"$sublevel" = X; then |
139 | kversion=$version.$patchlevel | |
140 | else | |
141 | kversion=$version.$patchlevel.$sublevel | |
7c9e113b | 142 | fi |
71fe9970 BP |
143 | AC_MSG_RESULT([$kversion]) |
144 | ||
3afcde43 | 145 | if test "$version" -ge 4; then |
1465deac | 146 | if test "$version" = 4 && test "$patchlevel" -le 13; then |
3afcde43 | 147 | : # Linux 4.x |
d76aabea | 148 | else |
1465deac | 149 | AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 4.13.x is not supported (please refer to the FAQ for advice)]) |
d76aabea | 150 | fi |
8063e095 | 151 | elif test "$version" = 3 && test "$patchlevel" -ge 10; then |
3afcde43 | 152 | : # Linux 3.x |
71fe9970 | 153 | else |
8063e095 | 154 | AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version 3.10 or later is required]) |
064af421 | 155 | fi |
2520f452 IY |
156 | if (test ! -e "$KBUILD"/include/linux/version.h && \ |
157 | test ! -e "$KBUILD"/include/generated/uapi/linux/version.h)|| \ | |
e3438006 BP |
158 | (test ! -e "$KBUILD"/include/linux/autoconf.h && \ |
159 | test ! -e "$KBUILD"/include/generated/autoconf.h); then | |
a0903134 | 160 | AC_MSG_ERROR([Linux kernel source in $KBUILD is not configured]) |
064af421 | 161 | fi |
e3438006 | 162 | OVS_CHECK_LINUX_COMPAT |
064af421 | 163 | fi |
e3438006 | 164 | AM_CONDITIONAL(LINUX_ENABLED, test -n "$KBUILD") |
064af421 BP |
165 | ]) |
166 | ||
1dc0da67 PB |
167 | dnl OVS_CHECK_LINUX_TC |
168 | dnl | |
169 | dnl Configure Linux tc compat. | |
170 | AC_DEFUN([OVS_CHECK_LINUX_TC], [ | |
171 | AC_COMPILE_IFELSE([ | |
172 | AC_LANG_PROGRAM([#include <linux/pkt_cls.h>], [ | |
2517aa5a | 173 | int x = TCA_FLOWER_KEY_IP_TTL_MASK; |
1dc0da67 | 174 | ])], |
2517aa5a PB |
175 | [AC_DEFINE([HAVE_TCA_FLOWER_KEY_IP_TTL_MASK], [1], |
176 | [Define to 1 if TCA_FLOWER_KEY_IP_TTL_MASK is avaiable.])]) | |
1dc0da67 PB |
177 | |
178 | AC_COMPILE_IFELSE([ | |
179 | AC_LANG_PROGRAM([#include <linux/tc_act/tc_vlan.h>], [ | |
180 | int x = TCA_VLAN_PUSH_VLAN_PRIORITY; | |
181 | ])], | |
182 | [AC_DEFINE([HAVE_TCA_VLAN_PUSH_VLAN_PRIORITY], [1], | |
183 | [Define to 1 if TCA_VLAN_PUSH_VLAN_PRIORITY is avaiable.])]) | |
184 | ||
185 | AC_COMPILE_IFELSE([ | |
186 | AC_LANG_PROGRAM([#include <linux/tc_act/tc_tunnel_key.h>], [ | |
187 | int x = TCA_TUNNEL_KEY_ENC_DST_PORT; | |
188 | ])], | |
189 | [AC_DEFINE([HAVE_TCA_TUNNEL_KEY_ENC_DST_PORT], [1], | |
190 | [Define to 1 if TCA_TUNNEL_KEY_ENC_DST_PORT is avaiable.])]) | |
e5b1657e PB |
191 | |
192 | AC_COMPILE_IFELSE([ | |
193 | AC_LANG_PROGRAM([#include <linux/tc_act/tc_pedit.h>], [ | |
194 | int x = TCA_PEDIT_KEY_EX_HDR_TYPE_UDP; | |
195 | ])], | |
196 | [AC_DEFINE([HAVE_TCA_PEDIT_KEY_EX_HDR_TYPE_UDP], [1], | |
197 | [Define to 1 if TCA_PEDIT_KEY_EX_HDR_TYPE_UDP is avaiable.])]) | |
1dc0da67 PB |
198 | ]) |
199 | ||
8a9562d2 PS |
200 | dnl OVS_CHECK_DPDK |
201 | dnl | |
202 | dnl Configure DPDK source tree | |
203 | AC_DEFUN([OVS_CHECK_DPDK], [ | |
204 | AC_ARG_WITH([dpdk], | |
205 | [AC_HELP_STRING([--with-dpdk=/path/to/dpdk], | |
4c16ee48 MV |
206 | [Specify the DPDK build directory])], |
207 | [have_dpdk=true]) | |
8a9562d2 | 208 | |
40b5ea86 | 209 | AC_MSG_CHECKING([whether dpdk datapath is enabled]) |
4c16ee48 | 210 | if test "$have_dpdk" != true || test "$with_dpdk" = no; then |
40b5ea86 BB |
211 | AC_MSG_RESULT([no]) |
212 | DPDKLIB_FOUND=false | |
213 | else | |
214 | AC_MSG_RESULT([yes]) | |
215 | case "$with_dpdk" in | |
216 | yes) | |
217 | DPDK_AUTO_DISCOVER="true" | |
96195c09 CE |
218 | PKG_CHECK_MODULES([DPDK], [libdpdk], |
219 | [DPDK_INCLUDE="$DPDK_CFLAGS"], | |
220 | [DPDK_INCLUDE="-I/usr/local/include/dpdk -I/usr/include/dpdk"]) | |
40b5ea86 BB |
221 | ;; |
222 | *) | |
223 | DPDK_AUTO_DISCOVER="false" | |
96195c09 | 224 | DPDK_INCLUDE_PATH="$with_dpdk/include" |
40b5ea86 BB |
225 | # If 'with_dpdk' is passed install directory, point to headers |
226 | # installed in $DESTDIR/$prefix/include/dpdk | |
96195c09 CE |
227 | if test -e "$DPDK_INCLUDE_PATH/rte_config.h"; then |
228 | DPDK_INCLUDE="-I$DPDK_INCLUDE_PATH" | |
229 | elif test -e "$DPDK_INCLUDE_PATH/dpdk/rte_config.h"; then | |
230 | DPDK_INCLUDE="-I$DPDK_INCLUDE_PATH/dpdk" | |
214ac6d4 | 231 | fi |
40b5ea86 BB |
232 | DPDK_LIB_DIR="$with_dpdk/lib" |
233 | ;; | |
234 | esac | |
8a9562d2 | 235 | |
18f777b2 | 236 | DPDK_LIB="-ldpdk" |
10d01ad2 | 237 | DPDK_EXTRA_LIB="" |
8a9562d2 | 238 | |
95626395 TG |
239 | ovs_save_CFLAGS="$CFLAGS" |
240 | ovs_save_LDFLAGS="$LDFLAGS" | |
96195c09 | 241 | CFLAGS="$CFLAGS $DPDK_INCLUDE" |
40b5ea86 BB |
242 | if test "$DPDK_AUTO_DISCOVER" = "false"; then |
243 | LDFLAGS="$LDFLAGS -L${DPDK_LIB_DIR}" | |
244 | fi | |
245 | ||
435aaddd CL |
246 | AC_COMPILE_IFELSE([ |
247 | AC_LANG_PROGRAM( | |
248 | [ | |
249 | #include <rte_config.h> | |
250 | #if RTE_LIBRTE_VHOST_NUMA | |
251 | #error | |
252 | #endif | |
253 | ], []) | |
254 | ], [], | |
255 | [AC_SEARCH_LIBS([get_mempolicy],[numa],[],[AC_MSG_ERROR([unable to find libnuma, install the dependency package])]) | |
5b9bf9e0 CL |
256 | DPDK_EXTRA_LIB="-lnuma" |
257 | AC_DEFINE([VHOST_NUMA], [1], [NUMA Aware vHost support detected in DPDK.])]) | |
16dfb8fa | 258 | |
4b88d678 CL |
259 | AC_COMPILE_IFELSE([ |
260 | AC_LANG_PROGRAM( | |
261 | [ | |
262 | #include <rte_config.h> | |
263 | #if RTE_LIBRTE_PMD_PCAP | |
264 | #error | |
265 | #endif | |
266 | ], []) | |
267 | ], [], | |
268 | [AC_SEARCH_LIBS([pcap_dump],[pcap],[],[AC_MSG_ERROR([unable to find libpcap, install the dependency package])]) | |
269 | DPDK_EXTRA_LIB="-lpcap" | |
270 | AC_COMPILE_IFELSE([ | |
271 | AC_LANG_PROGRAM( | |
272 | [ | |
273 | #include <rte_config.h> | |
274 | #if RTE_LIBRTE_PDUMP | |
275 | #error | |
276 | #endif | |
277 | ], []) | |
278 | ], [], | |
279 | [AC_DEFINE([DPDK_PDUMP], [1], [DPDK pdump enabled in OVS.])]) | |
280 | ]) | |
281 | ||
c1223b11 DDP |
282 | # On some systems we have to add -ldl to link with dpdk |
283 | # | |
284 | # This code, at first, tries to link without -ldl (""), | |
285 | # then adds it and tries again. | |
286 | # Before each attempt the search cache must be unset, | |
287 | # otherwise autoconf will stick with the old result | |
288 | ||
40b5ea86 | 289 | DPDKLIB_FOUND=false |
c1223b11 DDP |
290 | save_LIBS=$LIBS |
291 | for extras in "" "-ldl"; do | |
435aaddd | 292 | LIBS="$DPDK_LIB $extras $save_LIBS $DPDK_EXTRA_LIB" |
c1223b11 DDP |
293 | AC_LINK_IFELSE( |
294 | [AC_LANG_PROGRAM([#include <rte_config.h> | |
295 | #include <rte_eal.h>], | |
296 | [int rte_argc; char ** rte_argv; | |
297 | rte_eal_init(rte_argc, rte_argv);])], | |
40b5ea86 BB |
298 | [DPDKLIB_FOUND=true]) |
299 | if $DPDKLIB_FOUND; then | |
c1223b11 DDP |
300 | break |
301 | fi | |
302 | done | |
40b5ea86 BB |
303 | |
304 | # If linking unsuccessful | |
305 | if test "$DPDKLIB_FOUND" = "false" ; then | |
306 | if $DPDK_AUTO_DISCOVER; then | |
307 | AC_MSG_ERROR([Could not find DPDK library in default search path, Use --with-dpdk to specify the DPDK library installed in non-standard location]) | |
308 | else | |
309 | AC_MSG_ERROR([Could not find DPDK libraries in $DPDK_LIB_DIR]) | |
310 | fi | |
c1223b11 | 311 | fi |
95626395 TG |
312 | CFLAGS="$ovs_save_CFLAGS" |
313 | LDFLAGS="$ovs_save_LDFLAGS" | |
40b5ea86 BB |
314 | if test "$DPDK_AUTO_DISCOVER" = "false"; then |
315 | OVS_LDFLAGS="$OVS_LDFLAGS -L$DPDK_LIB_DIR" | |
316 | fi | |
96195c09 | 317 | OVS_CFLAGS="$OVS_CFLAGS $DPDK_INCLUDE" |
ab2a3154 | 318 | OVS_ENABLE_OPTION([-mssse3]) |
8a9562d2 | 319 | |
3c94676c | 320 | # DPDK pmd drivers are not linked unless --whole-archive is used. |
d7310583 DDP |
321 | # |
322 | # This happens because the rest of the DPDK code doesn't use any symbol in | |
323 | # the pmd driver objects, and the drivers register themselves using an | |
324 | # __attribute__((constructor)) function. | |
325 | # | |
326 | # These options are specified inside a single -Wl directive to prevent | |
327 | # autotools from reordering them. | |
3c94676c | 328 | DPDK_vswitchd_LDFLAGS=-Wl,--whole-archive,$DPDK_LIB,--no-whole-archive |
9475dfeb | 329 | AC_SUBST([DPDK_vswitchd_LDFLAGS]) |
8a9562d2 | 330 | AC_DEFINE([DPDK_NETDEV], [1], [System uses the DPDK module.]) |
8a9562d2 PS |
331 | fi |
332 | ||
40b5ea86 | 333 | AM_CONDITIONAL([DPDK_NETDEV], test "$DPDKLIB_FOUND" = true) |
8a9562d2 PS |
334 | ]) |
335 | ||
8828e5c7 | 336 | dnl OVS_GREP_IFELSE(FILE, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
064af421 BP |
337 | dnl |
338 | dnl Greps FILE for REGEX. If it matches, runs IF-MATCH, otherwise IF-NO-MATCH. | |
8828e5c7 BP |
339 | dnl If IF-MATCH is empty then it defines to OVS_DEFINE(HAVE_<REGEX>), with |
340 | dnl <REGEX> translated to uppercase. | |
064af421 BP |
341 | AC_DEFUN([OVS_GREP_IFELSE], [ |
342 | AC_MSG_CHECKING([whether $2 matches in $1]) | |
7507ec48 JG |
343 | if test -f $1; then |
344 | grep '$2' $1 >/dev/null 2>&1 | |
345 | status=$? | |
346 | case $status in | |
997d327d | 347 | 0) |
7507ec48 | 348 | AC_MSG_RESULT([yes]) |
8828e5c7 | 349 | m4_if([$3], [], [OVS_DEFINE([HAVE_]m4_toupper([$2]))], [$3]) |
7507ec48 | 350 | ;; |
997d327d | 351 | 1) |
7507ec48 JG |
352 | AC_MSG_RESULT([no]) |
353 | $4 | |
354 | ;; | |
997d327d | 355 | *) |
7507ec48 JG |
356 | AC_MSG_ERROR([grep exited with status $status]) |
357 | ;; | |
358 | esac | |
359 | else | |
360 | AC_MSG_RESULT([file not found]) | |
361 | $4 | |
362 | fi | |
064af421 BP |
363 | ]) |
364 | ||
13dd4a97 JS |
365 | dnl OVS_FIND_FIELD_IFELSE(FILE, STRUCTURE, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
366 | dnl | |
367 | dnl Looks for STRUCTURE in FILE. If it is found, greps for REGEX within the | |
368 | dnl structure definition. If this is successful, runs IF-MATCH, otherwise | |
369 | dnl IF_NO_MATCH. If IF-MATCH is empty then it defines to | |
370 | dnl OVS_DEFINE(HAVE_<STRUCTURE>_WITH_<REGEX>), with <STRUCTURE> and <REGEX> | |
371 | dnl translated to uppercase. | |
372 | AC_DEFUN([OVS_FIND_FIELD_IFELSE], [ | |
373 | AC_MSG_CHECKING([whether $2 has member $3 in $1]) | |
374 | if test -f $1; then | |
83a27884 | 375 | awk '/$2.{/,/^}/' $1 2>/dev/null | grep '$3' >/dev/null |
13dd4a97 JS |
376 | status=$? |
377 | case $status in | |
378 | 0) | |
379 | AC_MSG_RESULT([yes]) | |
380 | m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4]) | |
381 | ;; | |
382 | 1) | |
383 | AC_MSG_RESULT([no]) | |
384 | $5 | |
385 | ;; | |
386 | *) | |
387 | AC_MSG_ERROR([grep exited with status $status]) | |
388 | ;; | |
389 | esac | |
390 | else | |
391 | AC_MSG_RESULT([file not found]) | |
392 | $5 | |
393 | fi | |
394 | ]) | |
395 | ||
71ce9edd JR |
396 | dnl OVS_FIND_PARAM_IFELSE(FILE, FUNCTION, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
397 | dnl | |
398 | dnl Looks for FUNCTION in FILE. If it is found, greps for REGEX within | |
399 | dnl the function signature starting from the line matching FUNCTION | |
400 | dnl and ending with the line containing the closing parenthesis. If | |
401 | dnl this is successful, runs IF-MATCH, otherwise IF_NO_MATCH. If | |
402 | dnl IF-MATCH is empty then it defines to | |
403 | dnl OVS_DEFINE(HAVE_<FUNCTION>_WITH_<REGEX>), with <FUNCTION> and | |
404 | dnl <REGEX> translated to uppercase. | |
405 | AC_DEFUN([OVS_FIND_PARAM_IFELSE], [ | |
406 | AC_MSG_CHECKING([whether $2 has parameter $3 in $1]) | |
407 | if test -f $1; then | |
408 | awk '/$2[[ \t\n]]*\(/,/\)/' $1 2>/dev/null | grep '$3' >/dev/null | |
409 | status=$? | |
410 | case $status in | |
411 | 0) | |
412 | AC_MSG_RESULT([yes]) | |
413 | m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4]) | |
414 | ;; | |
415 | 1) | |
416 | AC_MSG_RESULT([no]) | |
417 | $5 | |
418 | ;; | |
419 | *) | |
420 | AC_MSG_ERROR([grep exited with status $status]) | |
421 | ;; | |
422 | esac | |
423 | else | |
424 | AC_MSG_RESULT([file not found]) | |
425 | $5 | |
426 | fi | |
427 | ]) | |
428 | ||
064af421 BP |
429 | dnl OVS_DEFINE(NAME) |
430 | dnl | |
431 | dnl Defines NAME to 1 in kcompat.h. | |
432 | AC_DEFUN([OVS_DEFINE], [ | |
22bcc0e7 | 433 | echo '#define $1 1' >> datapath/linux/kcompat.h.new |
064af421 BP |
434 | ]) |
435 | ||
e3438006 | 436 | dnl OVS_CHECK_LINUX_COMPAT |
064af421 | 437 | dnl |
8063e095 | 438 | dnl Runs various Autoconf checks on the Linux kernel source in |
e3438006 BP |
439 | dnl the directory in $KBUILD. |
440 | AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [ | |
22bcc0e7 JG |
441 | rm -f datapath/linux/kcompat.h.new |
442 | mkdir -p datapath/linux | |
443 | : > datapath/linux/kcompat.h.new | |
4aa13c0c | 444 | |
e23775f2 PS |
445 | echo '#include <linux/version.h> |
446 | #ifndef RHEL_RELEASE_CODE | |
447 | #define RHEL_RELEASE_CODE 0 | |
448 | #define RHEL_RELEASE_VERSION(a, b) 0 | |
449 | #endif' >> datapath/linux/kcompat.h.new | |
450 | ||
e3438006 | 451 | OVS_GREP_IFELSE([$KSRC/arch/x86/include/asm/checksum_32.h], [src_err,], |
25fb3596 JG |
452 | [OVS_DEFINE([HAVE_CSUM_COPY_DBG])]) |
453 | ||
e23775f2 PS |
454 | OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup.*net], |
455 | [OVS_DEFINE([HAVE_IPV6_DST_LOOKUP_NET])]) | |
456 | OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_stub]) | |
457 | ||
e3438006 | 458 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [ERR_CAST]) |
4303ec34 | 459 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [IS_ERR_OR_NULL]) |
54125dd0 | 460 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [PTR_ERR_OR_ZERO]) |
4aa13c0c | 461 | |
d923a695 | 462 | OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [eth_hw_addr_random]) |
e2f3178f | 463 | OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [ether_addr_copy]) |
d923a695 | 464 | |
e23775f2 PS |
465 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [IFLA_GENEVE_TOS]) |
466 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [rtnl_link_stats64]) | |
467 | OVS_GREP_IFELSE([$KSRC/include/linux/if_link.h], [rtnl_link_stats64]) | |
d923a695 | 468 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_set_encap_proto]) |
ec96e663 | 469 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_hwaccel_push_inside]) |
d923a695 | 470 | |
e3438006 | 471 | OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [ipv4_is_multicast]) |
46d69d18 | 472 | OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [proto_ports_offset]) |
2ea82414 PS |
473 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*dst_entry], |
474 | [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_DST_ENTRY])]) | |
e23775f2 PS |
475 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*net], |
476 | [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_NET])]) | |
477 | ||
13dd4a97 JS |
478 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [inet_get_local_port_range.*net], |
479 | [OVS_DEFINE([HAVE_INET_GET_LOCAL_PORT_RANGE_USING_NET])]) | |
39c0ff22 JS |
480 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_defrag.*net], |
481 | [OVS_DEFINE([HAVE_IP_DEFRAG_TAKES_NET])]) | |
0374bcbe EB |
482 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h], |
483 | [ip_do_fragment], [net], | |
484 | [OVS_DEFINE([HAVE_IP_DO_FRAGMENT_TAKES_NET])]) | |
0643a78b PS |
485 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h], |
486 | [ip_local_out], [net], | |
487 | [OVS_DEFINE([HAVE_IP_LOCAL_OUT_TAKES_NET])]) | |
488 | ||
cfda4537 | 489 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_skb_dst_mtu]) |
0f09d6e3 JS |
490 | |
491 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [IPSKB_FRAG_PMTU], | |
492 | [OVS_DEFINE([HAVE_CORRECT_MRU_HANDLING])]) | |
06f1a61a | 493 | OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], [__ip_tunnel_change_mtu]) |
595e069a JS |
494 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [hashfn.*const], |
495 | [OVS_DEFINE([HAVE_INET_FRAGS_CONST])]) | |
8f00ece9 JS |
496 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [last_in], |
497 | [OVS_DEFINE([HAVE_INET_FRAGS_LAST_IN])]) | |
e0d45da3 | 498 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evicting]) |
ccd0a13b | 499 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evictor]) |
91408ae0 JS |
500 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags], |
501 | [frags_work]) | |
d1c390e6 JS |
502 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags], |
503 | [rwlock]) | |
e0d45da3 JS |
504 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_queue], |
505 | [list_evictor]) | |
38f45380 | 506 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_lru_move]) |
6ccf21ca YHW |
507 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/inet_frag.h], |
508 | [sub_frag_mem_limit], [struct.netns_frags], | |
509 | [OVS_DEFINE([HAVE_SUB_FRAG_MEM_LIMIT_ARG_STRUCT_NETNS_FRAGS])]) | |
510 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [void.*inet_frags_init], | |
511 | [OVS_DEFINE([HAVE_VOID_INET_FRAGS_INIT])]) | |
401da7b9 JS |
512 | OVS_GREP_IFELSE([$KSRC/include/net/inetpeer.h], [vif], |
513 | [OVS_DEFINE([HAVE_INETPEER_VIF_SUPPORT])]) | |
8f00ece9 | 514 | |
f2252c61 PS |
515 | dnl Check for dst_cache and ipv6 lable to use backported tunnel infrastructure. |
516 | dnl OVS does not really need ipv6 label field, but its presence signifies that | |
517 | dnl the stack has all required ipv6 support. | |
518 | dnl OVS also does not need dst_cache But this dependency allows us to write | |
519 | dnl much cleaner code. | |
520 | ||
3259c4ff PS |
521 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ip_tunnels.h], [ip_tunnel_key], |
522 | [label], | |
523 | [OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], | |
524 | [iptunnel_pull_offloads], | |
997d327d | 525 | [OVS_GREP_IFELSE([$KSRC/include/net/dst_cache.h], [dst_cache], |
f2252c61 | 526 | [OVS_DEFINE([USE_UPSTREAM_TUNNEL])])])]) |
4aa13c0c | 527 | |
65590144 YHW |
528 | OVS_GREP_IFELSE([$KSRC/include/net/mpls.h], [mpls_hdr], |
529 | [OVS_DEFINE([MPLS_HEADER_IS_L3])]) | |
fdce83a3 PS |
530 | OVS_GREP_IFELSE([$KSRC/include/linux/net.h], [sock_create_kern.*net], |
531 | [OVS_DEFINE([HAVE_SOCK_CREATE_KERN_NET])]) | |
aad7cb91 | 532 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_fill_metadata_dst]) |
e3438006 BP |
533 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_disable_lro]) |
534 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_stats]) | |
535 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_by_index_rcu]) | |
3f506f07 | 536 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_recursion_level]) |
42d5dd95 TG |
537 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [__skb_gso_segment]) |
538 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [can_checksum_protocol]) | |
e23775f2 | 539 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_get_iflink]) |
0a0d9095 PS |
540 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_features_check], |
541 | [OVS_DEFINE([USE_UPSTREAM_TUNNEL_GSO])]) | |
f2252c61 PS |
542 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_vxlan_port]) |
543 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_geneve_port]) | |
d1890de5 | 544 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netdev_features_t]) |
8063e095 PS |
545 | dnl Ubuntu kernel 3.13 has defined this struct but not used for netdev->tstats. |
546 | dnl So check type of tstats. | |
547 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [pcpu_sw_netstats.*tstats], | |
548 | [OVS_DEFINE([HAVE_PCPU_SW_NETSTATS])]) | |
e23775f2 PS |
549 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netif_needs_gso.*net_device], |
550 | [OVS_DEFINE([HAVE_NETIF_NEEDS_GSO_NETDEV])]) | |
a0c9fedc | 551 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [skb_csum_hwoffload_help]) |
e23775f2 PS |
552 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload]) |
553 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload.*uoff], | |
554 | [OVS_DEFINE([HAVE_UDP_OFFLOAD_ARG_UOFF])]) | |
555 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [gro_remcsum]) | |
8ce37339 | 556 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [IFF_PHONY_HEADROOM]) |
6ccf21ca YHW |
557 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device_ops], |
558 | [extended]) | |
7efb1e09 PS |
559 | OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h], |
560 | [netdev_master_upper_dev_link], [upper_priv], | |
561 | [OVS_DEFINE([HAVE_NETDEV_MASTER_UPPER_DEV_LINK_PRIV])]) | |
b7ab7316 YHW |
562 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], |
563 | [netdev_master_upper_dev_link_rh], | |
564 | [OVS_DEFINE([HAVE_NETDEV_MASTER_UPPER_DEV_LINK_RH])]) | |
565 | ||
6c0bf091 JW |
566 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device], |
567 | [max_mtu]) | |
e23775f2 PS |
568 | |
569 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_state]) | |
570 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_register_net_hook]) | |
cd7330d0 PS |
571 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn.*nf_hook_ops], |
572 | [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_OPS])]) | |
0643a78b PS |
573 | OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn], [priv], |
574 | [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_PRIV])]) | |
575 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops], | |
576 | [owner], [OVS_DEFINE([HAVE_NF_HOOKS_OPS_OWNER])]) | |
577 | ||
e4e04c3b | 578 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter_ipv6.h], [nf_ipv6_ops], |
2b64e8fc | 579 | [fragment.*sock], [OVS_DEFINE([HAVE_NF_IPV6_OPS_FRAGMENT])]) |
e2f3178f | 580 | |
6d9b6937 JR |
581 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
582 | [nf_conn], [struct timer_list[[ \t]]*timeout], | |
583 | [OVS_DEFINE([HAVE_NF_CONN_TIMER])]) | |
584 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], | |
585 | [nf_ct_delete(], [OVS_DEFINE([HAVE_NF_CT_DELETE])]) | |
586 | ||
71ce9edd JR |
587 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
588 | [nf_ct_tmpl_alloc], [nf_conntrack_zone], | |
057772cf | 589 | [OVS_DEFINE([HAVE_NF_CT_TMPL_ALLOC_TAKES_STRUCT_ZONE])]) |
71ce9edd JR |
590 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
591 | [nf_ct_get_tuplepr], [struct.net], | |
fa67f8e0 | 592 | [OVS_DEFINE([HAVE_NF_CT_GET_TUPLEPR_TAKES_STRUCT_NET])]) |
dfa791b2 FW |
593 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
594 | [nf_ct_set]) | |
56ec5593 JS |
595 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
596 | [nf_ct_is_untracked]) | |
ac9cd0d2 JS |
597 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_zones.h], |
598 | [nf_ct_zone_init]) | |
459064e7 JS |
599 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
600 | [nf_connlabels_get]) | |
7f2ab8cd JR |
601 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
602 | [nf_connlabels_get], [int bit], | |
603 | [OVS_DEFINE([HAVE_NF_CONNLABELS_GET_TAKES_BIT])]) | |
9f04eabe JR |
604 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
605 | [nf_conn_labels], [words]) | |
0d330e42 JR |
606 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_ct_nat_ext_add]) |
607 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_alloc_null_binding]) | |
608 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_seqadj.h], [nf_ct_seq_adjust]) | |
057772cf | 609 | |
e2f3178f | 610 | OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32]) |
f000c879 | 611 | OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32_max]) |
4aa13c0c | 612 | |
e23775f2 PS |
613 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [get_link_net]) |
614 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [name_assign_type]) | |
615 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [rtnl_create_link.*src_net], | |
616 | [OVS_DEFINE([HAVE_RTNL_CREATE_LINK_SRC_NET])]) | |
617 | OVS_GREP_IFELSE([$KSRC/include/net/net_namespace.h], [possible_net_t]) | |
618 | ||
e3438006 BP |
619 | OVS_GREP_IFELSE([$KSRC/include/linux/rcupdate.h], [rcu_read_lock_held], [], |
620 | [OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], | |
cf6cb3a2 | 621 | [rcu_read_lock_held])]) |
8fa52250 | 622 | OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], [lockdep_rtnl_is_held]) |
997d327d | 623 | |
6a33828d BP |
624 | # Check for the proto_data_valid member in struct sk_buff. The [^@] |
625 | # is necessary because some versions of this header remove the | |
626 | # member but retain the kerneldoc comment that describes it (which | |
627 | # starts with @). The brackets must be doubled because of m4 | |
628 | # quoting rules. | |
e3438006 | 629 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [[[^@]]proto_data_valid], |
6a33828d | 630 | [OVS_DEFINE([HAVE_PROTO_DATA_VALID])]) |
ccb75a28 | 631 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_checksum_start_offset]) |
e23775f2 | 632 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol]) |
f2252c61 | 633 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol_type]) |
c1eb2500 | 634 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_inner_transport_offset]) |
d23239a2 | 635 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [kfree_skb_list]) |
60c4904f | 636 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [rxhash]) |
5640cbd8 JG |
637 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u16.*rxhash], |
638 | [OVS_DEFINE([HAVE_U16_RXHASH])]) | |
e3438006 | 639 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_dst(], |
85444c3f | 640 | [OVS_DEFINE([HAVE_SKB_DST_ACCESSOR_FUNCS])]) |
997d327d | 641 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], |
8828e5c7 | 642 | [skb_copy_from_linear_data_offset]) |
b9c15df9 PS |
643 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], |
644 | [skb_reset_tail_pointer]) | |
e3438006 | 645 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_cow_head]) |
e3438006 | 646 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_warn_if_lro], |
4aa13c0c | 647 | [OVS_DEFINE([HAVE_SKB_WARN_LRO])]) |
e3438006 | 648 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [consume_skb]) |
6c4ea27c | 649 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_frag_page]) |
da4bbeb7 | 650 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_has_frag_list]) |
0aa6fda7 | 651 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_fill_page_desc]) |
d923a695 | 652 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_reset_mac_len]) |
dc0d542d | 653 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_unclone]) |
1edc458d | 654 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_orphan_frags]) |
c253c2e3 MC |
655 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_get_hash(], |
656 | [OVS_DEFINE([HAVE_SKB_GET_HASH])]) | |
e2f3178f | 657 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash]) |
705e9260 PS |
658 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [int.skb_zerocopy(], |
659 | [OVS_DEFINE([HAVE_SKB_ZEROCOPY])]) | |
75e93287 FL |
660 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u8.*l4_rxhash], |
661 | [OVS_DEFINE([HAVE_L4_RXHASH])]) | |
5cce04b6 | 662 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_ensure_writable]) |
97894370 | 663 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_pop]) |
a27c454e | 664 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_vlan_pop]) |
97894370 | 665 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_push]) |
c6e13fcc | 666 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash_if_not_l4]) |
ea3acd7a | 667 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_postpush_rcsum]) |
73daf51a | 668 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [lco_csum]) |
d3c313c1 | 669 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_nfct]) |
0ace0a26 | 670 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_put_zero]) |
4aa13c0c | 671 | |
e3438006 | 672 | OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [bool], |
4aa13c0c | 673 | [OVS_DEFINE([HAVE_BOOL_TYPE])]) |
e3438006 | 674 | OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [__wsum], |
e215ebca | 675 | [OVS_DEFINE([HAVE_CSUM_TYPES])]) |
8dbe1f9f PS |
676 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/types.h], [__wsum], |
677 | [OVS_DEFINE([HAVE_CSUM_TYPES])]) | |
4aa13c0c | 678 | |
e3438006 BP |
679 | OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_replace4]) |
680 | OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_unfold]) | |
4aa13c0c | 681 | |
0d03e51c | 682 | OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [dst_discard_sk]) |
1dba1690 | 683 | OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [__skb_dst_copy]) |
0d03e51c | 684 | |
114fce23 SG |
685 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_has_listeners]) |
686 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [mcgrp_offset]) | |
14002a59 | 687 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [parallel_ops]) |
6233a1bd TG |
688 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [netlink_has_listeners(net->genl_sock], |
689 | [OVS_DEFINE([HAVE_GENL_HAS_LISTENERS_TAKES_NET])]) | |
c623ba49 | 690 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genlmsg_parse]) |
13dd4a97 JS |
691 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_notify.*family], |
692 | [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_FAMILY])]) | |
0643a78b PS |
693 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/genetlink.h], |
694 | [genl_notify], [net], | |
695 | [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_NET])]) | |
696 | ||
13dd4a97 JS |
697 | |
698 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/genetlink.h], | |
699 | [genl_multicast_group], [id]) | |
fdce83a3 | 700 | OVS_GREP_IFELSE([$KSRC/include/net/geneve.h], [geneve_hdr]) |
13dd4a97 | 701 | |
cc1d0dea | 702 | OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_cisco_register]) |
e23775f2 | 703 | OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_handle_offloads]) |
8abaa53c | 704 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [IP6_FH_F_SKIP_RH]) |
e23775f2 | 705 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [ip6_local_out_sk]) |
2d3ef70b | 706 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [__ipv6_addr_jhash]) |
a94ebc39 JS |
707 | OVS_GREP_IFELSE([$KSRC/include/net/ip6_fib.h], [rt6i.*u.dst], |
708 | [OVS_DEFINE([HAVE_RT6INFO_DST_UNION])]) | |
213e1f54 JS |
709 | OVS_GREP_IFELSE([$KSRC/include/net/ip6_route.h], [ip6_frag.*sock], |
710 | [OVS_DEFINE([HAVE_IP_FRAGMENT_TAKES_SOCK])]) | |
711 | ||
91b37647 | 712 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_64bit]) |
e3438006 | 713 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_get_be16]) |
42d5dd95 TG |
714 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be16]) |
715 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be32]) | |
716 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be64]) | |
dd693f9b | 717 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_in_addr]) |
e3438006 | 718 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_find_nested]) |
0fcc086d | 719 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_is_last]) |
6dbd98e6 SH |
720 | OVS_GREP_IFELSE([$KSRC/include/linux/netlink.h], [void.*netlink_set_err], |
721 | [OVS_DEFINE([HAVE_VOID_NETLINK_SET_ERR])]) | |
15702dc9 JB |
722 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netlink.h], |
723 | [nla_parse], [netlink_ext_ack], | |
724 | [OVS_DEFINE([HAVE_NETLINK_EXT_ACK])]) | |
4aa13c0c | 725 | |
c4e976db JG |
726 | OVS_GREP_IFELSE([$KSRC/include/net/sctp/checksum.h], [sctp_compute_cksum]) |
727 | ||
e3438006 | 728 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [ADD_ALL_VLANS_CMD], |
431488e6 | 729 | [OVS_DEFINE([HAVE_VLAN_BUG_WORKAROUND])]) |
1f649f1c | 730 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_insert_tag_set_proto]) |
17e3889f | 731 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [__vlan_insert_tag]) |
e23775f2 | 732 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_get_protocol]) |
5c3f23fe | 733 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [skb_vlan_tagged]) |
ca6da1b1 | 734 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [eth_type_vlan]) |
431488e6 | 735 | |
aadd6ae9 JS |
736 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/dst_metadata.h], |
737 | [metadata_dst_alloc], [metadata_type]) | |
738 | ||
09f27436 JG |
739 | OVS_GREP_IFELSE([$KSRC/include/linux/u64_stats_sync.h], [u64_stats_fetch_begin_irq]) |
740 | ||
3174a818 TG |
741 | OVS_GREP_IFELSE([$KSRC/include/net/vxlan.h], [struct vxlan_metadata], |
742 | [OVS_DEFINE([HAVE_VXLAN_METADATA])]) | |
f6a0c895 | 743 | OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_flow_src_port], |
13dd4a97 JS |
744 | [OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [inet_get_local_port_range(net], |
745 | [OVS_DEFINE([HAVE_UDP_FLOW_SRC_PORT])])]) | |
746 | OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_v4_check]) | |
e23775f2 | 747 | OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_gro_complete]) |
06aeda48 PS |
748 | OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [sk_buff.*udp_tunnel_handle_offloads], |
749 | [OVS_DEFINE([HAVE_UDP_TUNNEL_HANDLE_OFFLOAD_RET_SKB])]) | |
d7e58913 PS |
750 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_sock_cfg], |
751 | [gro_receive]) | |
e23775f2 PS |
752 | |
753 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [ignore_df], | |
f6a0c895 TG |
754 | [OVS_DEFINE([HAVE_IGNORE_DF_RENAME])]) |
755 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netdevice.h], [NET_NAME_UNKNOWN], | |
756 | [OVS_DEFINE([HAVE_NET_NAME_UNKNOWN])]) | |
f285d3e7 | 757 | |
b7ebebcd PS |
758 | OVS_GREP_IFELSE([$KSRC/include/net/sock.h], [sk_no_check_tx]) |
759 | OVS_GREP_IFELSE([$KSRC/include/linux/udp.h], [no_check6_tx]) | |
21a719d6 FL |
760 | OVS_GREP_IFELSE([$KSRC/include/linux/utsrelease.h], [el6], |
761 | [OVS_DEFINE([HAVE_RHEL6_PER_CPU])]) | |
c970aa4e PS |
762 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/protocol.h], |
763 | [udp_add_offload], [net], | |
764 | [OVS_DEFINE([HAVE_UDP_ADD_OFFLOAD_TAKES_NET])]) | |
802d12b6 GR |
765 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/ipv6/nf_defrag_ipv6.h], |
766 | [nf_defrag_ipv6_enable], [net], | |
767 | [OVS_DEFINE([HAVE_DEFRAG_ENABLE_TAKES_NET])]) | |
bef862bc GR |
768 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [family_list], |
769 | [OVS_DEFINE([HAVE_GENL_FAMILY_LIST])]) | |
7f15e8dd GR |
770 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device], |
771 | [needs_free_netdev], | |
772 | [OVS_DEFINE([HAVE_NEEDS_FREE_NETDEV])]) | |
14365643 GR |
773 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/vxlan.h], [vxlan_dev], [cfg], |
774 | [OVS_DEFINE([HAVE_VXLAN_DEV_CFG])]) | |
ac8e3c6d | 775 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h], |
35fc0638 GR |
776 | [nf_conntrack_helper_put], |
777 | [OVS_DEFINE(HAVE_NF_CONNTRACK_HELPER_PUT)]) | |
f90e29c9 | 778 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],[[[[:space:]]]SKB_GSO_UDP[[[:space:]]]], |
ad283644 | 779 | [OVS_DEFINE([HAVE_SKB_GSO_UDP])]) |
e0b0150c GR |
780 | OVS_GREP_IFELSE([$KSRC/include/net/dst.h],[DST_NOCACHE], |
781 | [OVS_DEFINE([HAVE_DST_NOCACHE])]) | |
6b51641a GR |
782 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/rtnetlink.h], [rtnl_link_ops], |
783 | [extack], | |
784 | [OVS_DEFINE([HAVE_EXT_ACK_IN_RTNL_LINKOPS])]) | |
a5220693 GR |
785 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops], |
786 | [list], | |
787 | [OVS_DEFINE([HAVE_LIST_IN_NF_HOOK_OPS])]) | |
21a719d6 | 788 | |
22bcc0e7 JG |
789 | if cmp -s datapath/linux/kcompat.h.new \ |
790 | datapath/linux/kcompat.h >/dev/null 2>&1; then | |
791 | rm datapath/linux/kcompat.h.new | |
064af421 | 792 | else |
22bcc0e7 | 793 | mv datapath/linux/kcompat.h.new datapath/linux/kcompat.h |
064af421 BP |
794 | fi |
795 | ]) | |
796 | ||
797 | dnl Checks for net/if_packet.h. | |
798 | AC_DEFUN([OVS_CHECK_IF_PACKET], | |
799 | [AC_CHECK_HEADER([net/if_packet.h], | |
800 | [HAVE_IF_PACKET=yes], | |
801 | [HAVE_IF_PACKET=no]) | |
802 | AM_CONDITIONAL([HAVE_IF_PACKET], [test "$HAVE_IF_PACKET" = yes]) | |
803 | if test "$HAVE_IF_PACKET" = yes; then | |
804 | AC_DEFINE([HAVE_IF_PACKET], [1], | |
805 | [Define to 1 if net/if_packet.h is available.]) | |
806 | fi]) | |
807 | ||
f6eb6b20 | 808 | dnl Checks for net/if_dl.h. |
d30e714c | 809 | dnl |
d23fa2ed YT |
810 | dnl (We use this as a proxy for checking whether we're building on FreeBSD |
811 | dnl or NetBSD.) | |
9360d9b7 EM |
812 | AC_DEFUN([OVS_CHECK_IF_DL], |
813 | [AC_CHECK_HEADER([net/if_dl.h], | |
814 | [HAVE_IF_DL=yes], | |
815 | [HAVE_IF_DL=no]) | |
816 | AM_CONDITIONAL([HAVE_IF_DL], [test "$HAVE_IF_DL" = yes]) | |
817 | if test "$HAVE_IF_DL" = yes; then | |
818 | AC_DEFINE([HAVE_IF_DL], [1], | |
819 | [Define to 1 if net/if_dl.h is available.]) | |
d30e714c | 820 | |
d23fa2ed | 821 | # On these platforms we use libpcap to access network devices. |
d30e714c | 822 | AC_SEARCH_LIBS([pcap_open_live], [pcap]) |
9360d9b7 EM |
823 | fi]) |
824 | ||
e50097d2 BP |
825 | dnl Checks for buggy strtok_r. |
826 | dnl | |
827 | dnl Some versions of glibc 2.7 has a bug in strtok_r when compiling | |
828 | dnl with optimization that can cause segfaults: | |
829 | dnl | |
830 | dnl http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614. | |
831 | AC_DEFUN([OVS_CHECK_STRTOK_R], | |
832 | [AC_CACHE_CHECK( | |
833 | [whether strtok_r macro segfaults on some inputs], | |
834 | [ovs_cv_strtok_r_bug], | |
835 | [AC_RUN_IFELSE( | |
836 | [AC_LANG_PROGRAM([#include <stdio.h> | |
837 | #include <string.h> | |
838 | ], | |
416e7132 BP |
839 | [[#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 |
840 | /* Assume bug is present, because relatively minor | |
841 | changes in compiler settings (e.g. optimization | |
842 | level) can make it crop up. */ | |
843 | return 1; | |
844 | #else | |
845 | char string[] = ":::"; | |
e50097d2 BP |
846 | char *save_ptr = (char *) 0xc0ffee; |
847 | char *token1, *token2; | |
848 | token1 = strtok_r(string, ":", &save_ptr); | |
849 | token2 = strtok_r(NULL, ":", &save_ptr); | |
5819a7cd | 850 | freopen ("/dev/null", "w", stdout); |
e50097d2 BP |
851 | printf ("%s %s\n", token1, token2); |
852 | return 0; | |
416e7132 | 853 | #endif |
e50097d2 BP |
854 | ]])], |
855 | [ovs_cv_strtok_r_bug=no], | |
856 | [ovs_cv_strtok_r_bug=yes], | |
857 | [ovs_cv_strtok_r_bug=yes])]) | |
858 | if test $ovs_cv_strtok_r_bug = yes; then | |
859 | AC_DEFINE([HAVE_STRTOK_R_BUG], [1], | |
860 | [Define if strtok_r macro segfaults on some inputs]) | |
861 | fi | |
862 | ]) | |
863 | ||
064af421 BP |
864 | dnl ---------------------------------------------------------------------- |
865 | dnl These macros are from GNU PSPP, with the following original license: | |
866 | dnl Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc. | |
867 | dnl This file is free software; the Free Software Foundation | |
868 | dnl gives unlimited permission to copy and/or distribute it, | |
869 | dnl with or without modifications, as long as this notice is preserved. | |
870 | ||
50194820 | 871 | AC_DEFUN([_OVS_CHECK_CC_OPTION], [dnl |
726af752 | 872 | m4_define([ovs_cv_name], [ovs_cv_[]m4_translit([$1], [-= ], [__])])dnl |
064af421 BP |
873 | AC_CACHE_CHECK([whether $CC accepts $1], [ovs_cv_name], |
874 | [ovs_save_CFLAGS="$CFLAGS" | |
50194820 BP |
875 | dnl Include -Werror in the compiler options, because without -Werror |
876 | dnl clang's GCC-compatible compiler driver does not return a failure | |
877 | dnl exit status even though it complains about options it does not | |
878 | dnl understand. | |
c2deac54 YT |
879 | dnl |
880 | dnl Also, check stderr as gcc exits with status 0 for options | |
881 | dnl rejected at getopt level. | |
882 | dnl % touch /tmp/a.c | |
883 | dnl % gcc -g -c -Werror -Qunused-arguments /tmp/a.c; echo $? | |
884 | dnl gcc: unrecognized option '-Qunused-arguments' | |
885 | dnl 0 | |
886 | dnl % | |
50194820 | 887 | CFLAGS="$CFLAGS $WERROR $1" |
37f4615e BP |
888 | AC_COMPILE_IFELSE( |
889 | [AC_LANG_SOURCE([int x;])], | |
890 | [if test -s conftest.err && grep "unrecognized option" conftest.err | |
891 | then | |
892 | ovs_cv_name[]=no | |
893 | else | |
894 | ovs_cv_name[]=yes | |
895 | fi], | |
896 | [ovs_cv_name[]=no]) | |
064af421 BP |
897 | CFLAGS="$ovs_save_CFLAGS"]) |
898 | if test $ovs_cv_name = yes; then | |
83f6c050 | 899 | m4_if([$2], [], [:], [$2]) |
064af421 BP |
900 | else |
901 | m4_if([$3], [], [:], [$3]) | |
902 | fi | |
903 | ]) | |
904 | ||
50194820 BP |
905 | dnl OVS_CHECK_WERROR |
906 | dnl | |
907 | dnl Check whether the C compiler accepts -Werror. | |
908 | dnl Sets $WERROR to "-Werror", if so, and otherwise to the empty string. | |
909 | AC_DEFUN([OVS_CHECK_WERROR], | |
910 | [WERROR= | |
911 | _OVS_CHECK_CC_OPTION([-Werror], [WERROR=-Werror])]) | |
912 | ||
913 | dnl OVS_CHECK_CC_OPTION([OPTION], [ACTION-IF-ACCEPTED], [ACTION-IF-REJECTED]) | |
914 | dnl Check whether the given C compiler OPTION is accepted. | |
915 | dnl If so, execute ACTION-IF-ACCEPTED, otherwise ACTION-IF-REJECTED. | |
916 | AC_DEFUN([OVS_CHECK_CC_OPTION], | |
917 | [AC_REQUIRE([OVS_CHECK_WERROR]) | |
918 | _OVS_CHECK_CC_OPTION([$1], [$2], [$3])]) | |
919 | ||
064af421 BP |
920 | dnl OVS_ENABLE_OPTION([OPTION]) |
921 | dnl Check whether the given C compiler OPTION is accepted. | |
d161c099 | 922 | dnl If so, add it to WARNING_FLAGS. |
064af421 BP |
923 | dnl Example: OVS_ENABLE_OPTION([-Wdeclaration-after-statement]) |
924 | AC_DEFUN([OVS_ENABLE_OPTION], | |
d161c099 BP |
925 | [OVS_CHECK_CC_OPTION([$1], [WARNING_FLAGS="$WARNING_FLAGS $1"]) |
926 | AC_SUBST([WARNING_FLAGS])]) | |
c72e245a BP |
927 | |
928 | dnl OVS_CONDITIONAL_CC_OPTION([OPTION], [CONDITIONAL]) | |
929 | dnl Check whether the given C compiler OPTION is accepted. | |
930 | dnl If so, enable the given Automake CONDITIONAL. | |
931 | ||
932 | dnl Example: OVS_CONDITIONAL_CC_OPTION([-Wno-unused], [HAVE_WNO_UNUSED]) | |
933 | AC_DEFUN([OVS_CONDITIONAL_CC_OPTION], | |
934 | [OVS_CHECK_CC_OPTION( | |
935 | [$1], [ovs_have_cc_option=yes], [ovs_have_cc_option=no]) | |
936 | AM_CONDITIONAL([$2], [test $ovs_have_cc_option = yes])]) | |
064af421 | 937 | dnl ---------------------------------------------------------------------- |
ed2d4f6a BP |
938 | |
939 | dnl Check for too-old XenServer. | |
940 | AC_DEFUN([OVS_CHECK_XENSERVER_VERSION], | |
941 | [AC_CACHE_CHECK([XenServer release], [ovs_cv_xsversion], | |
942 | [if test -e /etc/redhat-release; then | |
943 | ovs_cv_xsversion=`sed -n 's/^XenServer DDK release \([[^-]]*\)-.*/\1/p' /etc/redhat-release` | |
944 | fi | |
945 | if test -z "$ovs_cv_xsversion"; then | |
946 | ovs_cv_xsversion=none | |
947 | fi]) | |
948 | case $ovs_cv_xsversion in | |
949 | none) | |
950 | ;; | |
951 | ||
952 | [[1-9]][[0-9]]* | dnl XenServer 10 or later | |
953 | [[6-9]]* | dnl XenServer 6 or later | |
954 | 5.[[7-9]]* | dnl XenServer 5.7 or later | |
955 | 5.6.[[1-9]][[0-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.1000 or later | |
956 | 5.6.[[2-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.200 or later | |
957 | 5.6.1[[0-9]][[0-9]]) dnl Xenserver 5.6.100 or later | |
958 | ;; | |
959 | ||
960 | *) | |
961 | AC_MSG_ERROR([This appears to be XenServer $ovs_cv_xsversion, but only XenServer 5.6.100 or later is supported. (If you are really using a supported version of XenServer, you may override this error message by specifying 'ovs_cv_xsversion=5.6.100' on the "configure" command line.)]) | |
962 | ;; | |
963 | esac]) | |
29d935d6 | 964 | |
643c0c34 BP |
965 | dnl OVS_CHECK_SPARSE_TARGET |
966 | dnl | |
967 | dnl The "cgcc" script from "sparse" isn't very good at detecting the | |
968 | dnl target for which the code is being built. This helps it out. | |
969 | AC_DEFUN([OVS_CHECK_SPARSE_TARGET], | |
970 | [AC_CACHE_CHECK( | |
971 | [target hint for cgcc], | |
972 | [ac_cv_sparse_target], | |
973 | [AS_CASE([`$CC -dumpmachine 2>/dev/null`], | |
974 | [i?86-* | athlon-*], [ac_cv_sparse_target=x86], | |
975 | [x86_64-*], [ac_cv_sparse_target=x86_64], | |
976 | [ac_cv_sparse_target=other])]) | |
977 | AS_CASE([$ac_cv_sparse_target], | |
978 | [x86], [SPARSEFLAGS= CGCCFLAGS=-target=i86], | |
979 | [x86_64], [SPARSEFLAGS=-m64 CGCCFLAGS=-target=x86_64], | |
980 | [SPARSEFLAGS= CGCCFLAGS=]) | |
981 | AC_SUBST([SPARSEFLAGS]) | |
982 | AC_SUBST([CGCCFLAGS])]) | |
983 | ||
32e96ab7 AZ |
984 | dnl OVS_SPARSE_EXTRA_INCLUDES |
985 | dnl | |
986 | dnl The cgcc script from "sparse" does not search gcc's default | |
987 | dnl search path. Get the default search path from GCC and pass | |
988 | dnl them to sparse. | |
989 | AC_DEFUN([OVS_SPARSE_EXTRA_INCLUDES], | |
990 | AC_SUBST([SPARSE_EXTRA_INCLUDES], | |
991 | [`$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 ' ' `] )) | |
992 | ||
29d935d6 BP |
993 | dnl OVS_ENABLE_SPARSE |
994 | AC_DEFUN([OVS_ENABLE_SPARSE], | |
643c0c34 | 995 | [AC_REQUIRE([OVS_CHECK_SPARSE_TARGET]) |
32e96ab7 | 996 | AC_REQUIRE([OVS_SPARSE_EXTRA_INCLUDES]) |
372d58a4 BP |
997 | : ${SPARSE=sparse} |
998 | AC_SUBST([SPARSE]) | |
999 | AC_CONFIG_COMMANDS_PRE( | |
344f6253 | 1000 | [CC='$(if $(C),env REAL_CC="'"$CC"'" CHECK="$(SPARSE) -I $(top_srcdir)/include/sparse $(SPARSEFLAGS) $(SPARSE_EXTRA_INCLUDES) " cgcc $(CGCCFLAGS),'"$CC"')'])]) |
8a8cd0ac | 1001 | |
0eaaacac FL |
1002 | dnl OVS_CTAGS_IDENTIFIERS |
1003 | dnl | |
1004 | dnl ctags ignores symbols with extras identifiers. This builds a list of | |
1005 | dnl specially handled identifiers to be ignored. | |
1006 | AC_DEFUN([OVS_CTAGS_IDENTIFIERS], | |
1007 | AC_SUBST([OVS_CTAGS_IDENTIFIERS_LIST], | |
c9990318 | 1008 | [`printf %s '-I "'; sed -n 's/^#define \(OVS_[A-Z_]\+\)(\.\.\.)$/\1+/p' ${srcdir}/include/openvswitch/compiler.h | tr \\\n ' ' ; printf '"'`] )) |
0eaaacac | 1009 | |
8a8cd0ac BP |
1010 | dnl OVS_PTHREAD_SET_NAME |
1011 | dnl | |
1012 | dnl This checks for three known variants of pthreads functions for setting | |
1013 | dnl the name of the current thread: | |
1014 | dnl | |
1015 | dnl glibc: int pthread_setname_np(pthread_t, const char *name); | |
1016 | dnl NetBSD: int pthread_setname_np(pthread_t, const char *format, void *arg); | |
1017 | dnl FreeBSD: int pthread_set_name_np(pthread_t, const char *name); | |
1018 | dnl | |
1019 | dnl For glibc and FreeBSD, the arguments are just a thread and its name. For | |
1020 | dnl NetBSD, 'format' is a printf() format string and 'arg' is an argument to | |
1021 | dnl provide to it. | |
1022 | dnl | |
1023 | dnl This macro defines: | |
1024 | dnl | |
1025 | dnl glibc: HAVE_GLIBC_PTHREAD_SETNAME_NP | |
1026 | dnl NetBSD: HAVE_NETBSD_PTHREAD_SETNAME_NP | |
1027 | dnl FreeBSD: HAVE_PTHREAD_SET_NAME_NP | |
1028 | AC_DEFUN([OVS_CHECK_PTHREAD_SET_NAME], | |
1029 | [AC_CHECK_FUNCS([pthread_set_name_np]) | |
1030 | if test $ac_cv_func_pthread_set_name_np != yes; then | |
1031 | AC_CACHE_CHECK( | |
1032 | [for pthread_setname_np() variant], | |
1033 | [ovs_cv_pthread_setname_np], | |
1034 | [AC_LINK_IFELSE( | |
a0903134 | 1035 | [AC_LANG_PROGRAM([#include <pthread.h> |
8a8cd0ac | 1036 | ], [pthread_setname_np(pthread_self(), "name");])], |
a0903134 | 1037 | [ovs_cv_pthread_setname_np=glibc], |
8a8cd0ac | 1038 | [AC_LINK_IFELSE( |
a0903134 | 1039 | [AC_LANG_PROGRAM([#include <pthread.h> |
8a8cd0ac BP |
1040 | ], [pthread_setname_np(pthread_self(), "%s", "name");])], |
1041 | [ovs_cv_pthread_setname_np=netbsd], | |
a0903134 | 1042 | [ovs_cv_pthread_setname_np=none])])]) |
8a8cd0ac BP |
1043 | case $ovs_cv_pthread_setname_np in # ( |
1044 | glibc) | |
a0903134 YT |
1045 | AC_DEFINE( |
1046 | [HAVE_GLIBC_PTHREAD_SETNAME_NP], [1], | |
1047 | [Define to 1 if pthread_setname_np() is available and takes 2 parameters (like glibc).]) | |
1048 | ;; # ( | |
8a8cd0ac | 1049 | netbsd) |
a0903134 YT |
1050 | AC_DEFINE( |
1051 | [HAVE_NETBSD_PTHREAD_SETNAME_NP], [1], | |
1052 | [Define to 1 if pthread_setname_np() is available and takes 3 parameters (like NetBSD).]) | |
1053 | ;; | |
8a8cd0ac BP |
1054 | esac |
1055 | fi]) | |
5020f5f0 BP |
1056 | |
1057 | dnl OVS_CHECK_LINUX_HOST. | |
1058 | dnl | |
1059 | dnl Checks whether we're building for a Linux host, based on the presence of | |
1060 | dnl the __linux__ preprocessor symbol, and sets up an Automake conditional | |
1061 | dnl LINUX based on the result. | |
1062 | AC_DEFUN([OVS_CHECK_LINUX_HOST], | |
1063 | [AC_CACHE_CHECK( | |
1064 | [whether __linux__ is defined], | |
1065 | [ovs_cv_linux], | |
1066 | [AC_COMPILE_IFELSE( | |
1067 | [AC_LANG_PROGRAM([enum { LINUX = __linux__};], [])], | |
1068 | [ovs_cv_linux=true], | |
1069 | [ovs_cv_linux=false])]) | |
1070 | AM_CONDITIONAL([LINUX], [$ovs_cv_linux])]) |