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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 "$version" -ge 4; then |
b03d0587 | 146 | if test "$version" = 4 && test "$patchlevel" -le 12; then |
3afcde43 | 147 | : # Linux 4.x |
d76aabea | 148 | else |
2c0e107e | 149 | AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 4.11.x is not supported (please refer to the FAQ for advice)]) |
d76aabea | 150 | fi |
8063e095 | 151 | elif test "$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>], [ | |
173 | int x = TCA_ACT_COOKIE; | |
174 | ])], | |
175 | [AC_DEFINE([HAVE_TCA_ACT_COOKIE], [1], | |
176 | [Define to 1 if TCA_ACT_COOKIE is avaiable.])]) | |
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.])]) | |
191 | ]) | |
192 | ||
8a9562d2 PS |
193 | dnl OVS_CHECK_DPDK |
194 | dnl | |
195 | dnl Configure DPDK source tree | |
196 | AC_DEFUN([OVS_CHECK_DPDK], [ | |
197 | AC_ARG_WITH([dpdk], | |
198 | [AC_HELP_STRING([--with-dpdk=/path/to/dpdk], | |
4c16ee48 MV |
199 | [Specify the DPDK build directory])], |
200 | [have_dpdk=true]) | |
8a9562d2 | 201 | |
40b5ea86 | 202 | AC_MSG_CHECKING([whether dpdk datapath is enabled]) |
4c16ee48 | 203 | if test "$have_dpdk" != true || test "$with_dpdk" = no; then |
40b5ea86 BB |
204 | AC_MSG_RESULT([no]) |
205 | DPDKLIB_FOUND=false | |
206 | else | |
207 | AC_MSG_RESULT([yes]) | |
208 | case "$with_dpdk" in | |
209 | yes) | |
210 | DPDK_AUTO_DISCOVER="true" | |
211 | DPDK_INCLUDE="/usr/local/include/dpdk -I/usr/include/dpdk" | |
212 | ;; | |
213 | *) | |
214 | DPDK_AUTO_DISCOVER="false" | |
215 | DPDK_INCLUDE="$with_dpdk/include" | |
216 | # If 'with_dpdk' is passed install directory, point to headers | |
217 | # installed in $DESTDIR/$prefix/include/dpdk | |
214ac6d4 BP |
218 | if test ! -e "$DPDK_INCLUDE/rte_config.h" && \ |
219 | test -e "$DPDK_INCLUDE/dpdk/rte_config.h"; then | |
220 | DPDK_INCLUDE=$DPDK_INCLUDE/dpdk | |
221 | fi | |
40b5ea86 BB |
222 | DPDK_LIB_DIR="$with_dpdk/lib" |
223 | ;; | |
224 | esac | |
8a9562d2 | 225 | |
18f777b2 | 226 | DPDK_LIB="-ldpdk" |
10d01ad2 | 227 | DPDK_EXTRA_LIB="" |
8a9562d2 | 228 | |
95626395 TG |
229 | ovs_save_CFLAGS="$CFLAGS" |
230 | ovs_save_LDFLAGS="$LDFLAGS" | |
c1223b11 | 231 | CFLAGS="$CFLAGS -I$DPDK_INCLUDE" |
40b5ea86 BB |
232 | if test "$DPDK_AUTO_DISCOVER" = "false"; then |
233 | LDFLAGS="$LDFLAGS -L${DPDK_LIB_DIR}" | |
234 | fi | |
235 | ||
435aaddd CL |
236 | AC_COMPILE_IFELSE([ |
237 | AC_LANG_PROGRAM( | |
238 | [ | |
239 | #include <rte_config.h> | |
240 | #if RTE_LIBRTE_VHOST_NUMA | |
241 | #error | |
242 | #endif | |
243 | ], []) | |
244 | ], [], | |
245 | [AC_SEARCH_LIBS([get_mempolicy],[numa],[],[AC_MSG_ERROR([unable to find libnuma, install the dependency package])]) | |
5b9bf9e0 CL |
246 | DPDK_EXTRA_LIB="-lnuma" |
247 | AC_DEFINE([VHOST_NUMA], [1], [NUMA Aware vHost support detected in DPDK.])]) | |
16dfb8fa | 248 | |
4b88d678 CL |
249 | AC_COMPILE_IFELSE([ |
250 | AC_LANG_PROGRAM( | |
251 | [ | |
252 | #include <rte_config.h> | |
253 | #if RTE_LIBRTE_PMD_PCAP | |
254 | #error | |
255 | #endif | |
256 | ], []) | |
257 | ], [], | |
258 | [AC_SEARCH_LIBS([pcap_dump],[pcap],[],[AC_MSG_ERROR([unable to find libpcap, install the dependency package])]) | |
259 | DPDK_EXTRA_LIB="-lpcap" | |
260 | AC_COMPILE_IFELSE([ | |
261 | AC_LANG_PROGRAM( | |
262 | [ | |
263 | #include <rte_config.h> | |
264 | #if RTE_LIBRTE_PDUMP | |
265 | #error | |
266 | #endif | |
267 | ], []) | |
268 | ], [], | |
269 | [AC_DEFINE([DPDK_PDUMP], [1], [DPDK pdump enabled in OVS.])]) | |
270 | ]) | |
271 | ||
c1223b11 DDP |
272 | # On some systems we have to add -ldl to link with dpdk |
273 | # | |
274 | # This code, at first, tries to link without -ldl (""), | |
275 | # then adds it and tries again. | |
276 | # Before each attempt the search cache must be unset, | |
277 | # otherwise autoconf will stick with the old result | |
278 | ||
40b5ea86 | 279 | DPDKLIB_FOUND=false |
c1223b11 DDP |
280 | save_LIBS=$LIBS |
281 | for extras in "" "-ldl"; do | |
435aaddd | 282 | LIBS="$DPDK_LIB $extras $save_LIBS $DPDK_EXTRA_LIB" |
c1223b11 DDP |
283 | AC_LINK_IFELSE( |
284 | [AC_LANG_PROGRAM([#include <rte_config.h> | |
285 | #include <rte_eal.h>], | |
286 | [int rte_argc; char ** rte_argv; | |
287 | rte_eal_init(rte_argc, rte_argv);])], | |
40b5ea86 BB |
288 | [DPDKLIB_FOUND=true]) |
289 | if $DPDKLIB_FOUND; then | |
c1223b11 DDP |
290 | break |
291 | fi | |
292 | done | |
40b5ea86 BB |
293 | |
294 | # If linking unsuccessful | |
295 | if test "$DPDKLIB_FOUND" = "false" ; then | |
296 | if $DPDK_AUTO_DISCOVER; then | |
297 | 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]) | |
298 | else | |
299 | AC_MSG_ERROR([Could not find DPDK libraries in $DPDK_LIB_DIR]) | |
300 | fi | |
c1223b11 | 301 | fi |
95626395 TG |
302 | CFLAGS="$ovs_save_CFLAGS" |
303 | LDFLAGS="$ovs_save_LDFLAGS" | |
40b5ea86 BB |
304 | if test "$DPDK_AUTO_DISCOVER" = "false"; then |
305 | OVS_LDFLAGS="$OVS_LDFLAGS -L$DPDK_LIB_DIR" | |
306 | fi | |
ab2a3154 IM |
307 | OVS_CFLAGS="$OVS_CFLAGS -I$DPDK_INCLUDE" |
308 | OVS_ENABLE_OPTION([-mssse3]) | |
8a9562d2 | 309 | |
3c94676c | 310 | # DPDK pmd drivers are not linked unless --whole-archive is used. |
d7310583 DDP |
311 | # |
312 | # This happens because the rest of the DPDK code doesn't use any symbol in | |
313 | # the pmd driver objects, and the drivers register themselves using an | |
314 | # __attribute__((constructor)) function. | |
315 | # | |
316 | # These options are specified inside a single -Wl directive to prevent | |
317 | # autotools from reordering them. | |
3c94676c | 318 | DPDK_vswitchd_LDFLAGS=-Wl,--whole-archive,$DPDK_LIB,--no-whole-archive |
9475dfeb | 319 | AC_SUBST([DPDK_vswitchd_LDFLAGS]) |
8a9562d2 | 320 | AC_DEFINE([DPDK_NETDEV], [1], [System uses the DPDK module.]) |
8a9562d2 PS |
321 | fi |
322 | ||
40b5ea86 | 323 | AM_CONDITIONAL([DPDK_NETDEV], test "$DPDKLIB_FOUND" = true) |
8a9562d2 PS |
324 | ]) |
325 | ||
8828e5c7 | 326 | dnl OVS_GREP_IFELSE(FILE, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
064af421 BP |
327 | dnl |
328 | dnl Greps FILE for REGEX. If it matches, runs IF-MATCH, otherwise IF-NO-MATCH. | |
8828e5c7 BP |
329 | dnl If IF-MATCH is empty then it defines to OVS_DEFINE(HAVE_<REGEX>), with |
330 | dnl <REGEX> translated to uppercase. | |
064af421 BP |
331 | AC_DEFUN([OVS_GREP_IFELSE], [ |
332 | AC_MSG_CHECKING([whether $2 matches in $1]) | |
7507ec48 JG |
333 | if test -f $1; then |
334 | grep '$2' $1 >/dev/null 2>&1 | |
335 | status=$? | |
336 | case $status in | |
997d327d | 337 | 0) |
7507ec48 | 338 | AC_MSG_RESULT([yes]) |
8828e5c7 | 339 | m4_if([$3], [], [OVS_DEFINE([HAVE_]m4_toupper([$2]))], [$3]) |
7507ec48 | 340 | ;; |
997d327d | 341 | 1) |
7507ec48 JG |
342 | AC_MSG_RESULT([no]) |
343 | $4 | |
344 | ;; | |
997d327d | 345 | *) |
7507ec48 JG |
346 | AC_MSG_ERROR([grep exited with status $status]) |
347 | ;; | |
348 | esac | |
349 | else | |
350 | AC_MSG_RESULT([file not found]) | |
351 | $4 | |
352 | fi | |
064af421 BP |
353 | ]) |
354 | ||
13dd4a97 JS |
355 | dnl OVS_FIND_FIELD_IFELSE(FILE, STRUCTURE, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
356 | dnl | |
357 | dnl Looks for STRUCTURE in FILE. If it is found, greps for REGEX within the | |
358 | dnl structure definition. If this is successful, runs IF-MATCH, otherwise | |
359 | dnl IF_NO_MATCH. If IF-MATCH is empty then it defines to | |
360 | dnl OVS_DEFINE(HAVE_<STRUCTURE>_WITH_<REGEX>), with <STRUCTURE> and <REGEX> | |
361 | dnl translated to uppercase. | |
362 | AC_DEFUN([OVS_FIND_FIELD_IFELSE], [ | |
363 | AC_MSG_CHECKING([whether $2 has member $3 in $1]) | |
364 | if test -f $1; then | |
83a27884 | 365 | awk '/$2.{/,/^}/' $1 2>/dev/null | grep '$3' >/dev/null |
13dd4a97 JS |
366 | status=$? |
367 | case $status in | |
368 | 0) | |
369 | AC_MSG_RESULT([yes]) | |
370 | m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4]) | |
371 | ;; | |
372 | 1) | |
373 | AC_MSG_RESULT([no]) | |
374 | $5 | |
375 | ;; | |
376 | *) | |
377 | AC_MSG_ERROR([grep exited with status $status]) | |
378 | ;; | |
379 | esac | |
380 | else | |
381 | AC_MSG_RESULT([file not found]) | |
382 | $5 | |
383 | fi | |
384 | ]) | |
385 | ||
71ce9edd JR |
386 | dnl OVS_FIND_PARAM_IFELSE(FILE, FUNCTION, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
387 | dnl | |
388 | dnl Looks for FUNCTION in FILE. If it is found, greps for REGEX within | |
389 | dnl the function signature starting from the line matching FUNCTION | |
390 | dnl and ending with the line containing the closing parenthesis. If | |
391 | dnl this is successful, runs IF-MATCH, otherwise IF_NO_MATCH. If | |
392 | dnl IF-MATCH is empty then it defines to | |
393 | dnl OVS_DEFINE(HAVE_<FUNCTION>_WITH_<REGEX>), with <FUNCTION> and | |
394 | dnl <REGEX> translated to uppercase. | |
395 | AC_DEFUN([OVS_FIND_PARAM_IFELSE], [ | |
396 | AC_MSG_CHECKING([whether $2 has parameter $3 in $1]) | |
397 | if test -f $1; then | |
398 | awk '/$2[[ \t\n]]*\(/,/\)/' $1 2>/dev/null | grep '$3' >/dev/null | |
399 | status=$? | |
400 | case $status in | |
401 | 0) | |
402 | AC_MSG_RESULT([yes]) | |
403 | m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4]) | |
404 | ;; | |
405 | 1) | |
406 | AC_MSG_RESULT([no]) | |
407 | $5 | |
408 | ;; | |
409 | *) | |
410 | AC_MSG_ERROR([grep exited with status $status]) | |
411 | ;; | |
412 | esac | |
413 | else | |
414 | AC_MSG_RESULT([file not found]) | |
415 | $5 | |
416 | fi | |
417 | ]) | |
418 | ||
064af421 BP |
419 | dnl OVS_DEFINE(NAME) |
420 | dnl | |
421 | dnl Defines NAME to 1 in kcompat.h. | |
422 | AC_DEFUN([OVS_DEFINE], [ | |
22bcc0e7 | 423 | echo '#define $1 1' >> datapath/linux/kcompat.h.new |
064af421 BP |
424 | ]) |
425 | ||
e3438006 | 426 | dnl OVS_CHECK_LINUX_COMPAT |
064af421 | 427 | dnl |
8063e095 | 428 | dnl Runs various Autoconf checks on the Linux kernel source in |
e3438006 BP |
429 | dnl the directory in $KBUILD. |
430 | AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [ | |
22bcc0e7 JG |
431 | rm -f datapath/linux/kcompat.h.new |
432 | mkdir -p datapath/linux | |
433 | : > datapath/linux/kcompat.h.new | |
4aa13c0c | 434 | |
e23775f2 PS |
435 | echo '#include <linux/version.h> |
436 | #ifndef RHEL_RELEASE_CODE | |
437 | #define RHEL_RELEASE_CODE 0 | |
438 | #define RHEL_RELEASE_VERSION(a, b) 0 | |
439 | #endif' >> datapath/linux/kcompat.h.new | |
440 | ||
e3438006 | 441 | OVS_GREP_IFELSE([$KSRC/arch/x86/include/asm/checksum_32.h], [src_err,], |
25fb3596 JG |
442 | [OVS_DEFINE([HAVE_CSUM_COPY_DBG])]) |
443 | ||
e23775f2 PS |
444 | OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup.*net], |
445 | [OVS_DEFINE([HAVE_IPV6_DST_LOOKUP_NET])]) | |
446 | OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_stub]) | |
447 | ||
e3438006 | 448 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [ERR_CAST]) |
4303ec34 | 449 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [IS_ERR_OR_NULL]) |
54125dd0 | 450 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [PTR_ERR_OR_ZERO]) |
4aa13c0c | 451 | |
d923a695 | 452 | OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [eth_hw_addr_random]) |
e2f3178f | 453 | OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [ether_addr_copy]) |
d923a695 | 454 | |
e23775f2 PS |
455 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [IFLA_GENEVE_TOS]) |
456 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [rtnl_link_stats64]) | |
457 | OVS_GREP_IFELSE([$KSRC/include/linux/if_link.h], [rtnl_link_stats64]) | |
d923a695 | 458 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_set_encap_proto]) |
ec96e663 | 459 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_hwaccel_push_inside]) |
d923a695 | 460 | |
e3438006 | 461 | OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [ipv4_is_multicast]) |
46d69d18 | 462 | OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [proto_ports_offset]) |
2ea82414 PS |
463 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*dst_entry], |
464 | [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_DST_ENTRY])]) | |
e23775f2 PS |
465 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*net], |
466 | [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_NET])]) | |
467 | ||
13dd4a97 JS |
468 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [inet_get_local_port_range.*net], |
469 | [OVS_DEFINE([HAVE_INET_GET_LOCAL_PORT_RANGE_USING_NET])]) | |
39c0ff22 JS |
470 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_defrag.*net], |
471 | [OVS_DEFINE([HAVE_IP_DEFRAG_TAKES_NET])]) | |
0374bcbe EB |
472 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h], |
473 | [ip_do_fragment], [net], | |
474 | [OVS_DEFINE([HAVE_IP_DO_FRAGMENT_TAKES_NET])]) | |
0643a78b PS |
475 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h], |
476 | [ip_local_out], [net], | |
477 | [OVS_DEFINE([HAVE_IP_LOCAL_OUT_TAKES_NET])]) | |
478 | ||
cfda4537 | 479 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_skb_dst_mtu]) |
0f09d6e3 JS |
480 | |
481 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [IPSKB_FRAG_PMTU], | |
482 | [OVS_DEFINE([HAVE_CORRECT_MRU_HANDLING])]) | |
06f1a61a | 483 | OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], [__ip_tunnel_change_mtu]) |
595e069a JS |
484 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [hashfn.*const], |
485 | [OVS_DEFINE([HAVE_INET_FRAGS_CONST])]) | |
8f00ece9 JS |
486 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [last_in], |
487 | [OVS_DEFINE([HAVE_INET_FRAGS_LAST_IN])]) | |
e0d45da3 | 488 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evicting]) |
ccd0a13b | 489 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evictor]) |
91408ae0 JS |
490 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags], |
491 | [frags_work]) | |
d1c390e6 JS |
492 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags], |
493 | [rwlock]) | |
e0d45da3 JS |
494 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_queue], |
495 | [list_evictor]) | |
38f45380 | 496 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_lru_move]) |
6ccf21ca YHW |
497 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/inet_frag.h], |
498 | [sub_frag_mem_limit], [struct.netns_frags], | |
499 | [OVS_DEFINE([HAVE_SUB_FRAG_MEM_LIMIT_ARG_STRUCT_NETNS_FRAGS])]) | |
500 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [void.*inet_frags_init], | |
501 | [OVS_DEFINE([HAVE_VOID_INET_FRAGS_INIT])]) | |
401da7b9 JS |
502 | OVS_GREP_IFELSE([$KSRC/include/net/inetpeer.h], [vif], |
503 | [OVS_DEFINE([HAVE_INETPEER_VIF_SUPPORT])]) | |
8f00ece9 | 504 | |
f2252c61 PS |
505 | dnl Check for dst_cache and ipv6 lable to use backported tunnel infrastructure. |
506 | dnl OVS does not really need ipv6 label field, but its presence signifies that | |
507 | dnl the stack has all required ipv6 support. | |
508 | dnl OVS also does not need dst_cache But this dependency allows us to write | |
509 | dnl much cleaner code. | |
510 | ||
3259c4ff PS |
511 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ip_tunnels.h], [ip_tunnel_key], |
512 | [label], | |
513 | [OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], | |
514 | [iptunnel_pull_offloads], | |
997d327d | 515 | [OVS_GREP_IFELSE([$KSRC/include/net/dst_cache.h], [dst_cache], |
f2252c61 | 516 | [OVS_DEFINE([USE_UPSTREAM_TUNNEL])])])]) |
4aa13c0c | 517 | |
65590144 YHW |
518 | OVS_GREP_IFELSE([$KSRC/include/net/mpls.h], [mpls_hdr], |
519 | [OVS_DEFINE([MPLS_HEADER_IS_L3])]) | |
fdce83a3 PS |
520 | OVS_GREP_IFELSE([$KSRC/include/linux/net.h], [sock_create_kern.*net], |
521 | [OVS_DEFINE([HAVE_SOCK_CREATE_KERN_NET])]) | |
aad7cb91 | 522 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_fill_metadata_dst]) |
e3438006 BP |
523 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_disable_lro]) |
524 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_stats]) | |
525 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_by_index_rcu]) | |
3f506f07 | 526 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_recursion_level]) |
42d5dd95 TG |
527 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [__skb_gso_segment]) |
528 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [can_checksum_protocol]) | |
e23775f2 | 529 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_get_iflink]) |
0a0d9095 PS |
530 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_features_check], |
531 | [OVS_DEFINE([USE_UPSTREAM_TUNNEL_GSO])]) | |
f2252c61 PS |
532 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_vxlan_port]) |
533 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_geneve_port]) | |
d1890de5 | 534 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netdev_features_t]) |
8063e095 PS |
535 | dnl Ubuntu kernel 3.13 has defined this struct but not used for netdev->tstats. |
536 | dnl So check type of tstats. | |
537 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [pcpu_sw_netstats.*tstats], | |
538 | [OVS_DEFINE([HAVE_PCPU_SW_NETSTATS])]) | |
e23775f2 PS |
539 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netif_needs_gso.*net_device], |
540 | [OVS_DEFINE([HAVE_NETIF_NEEDS_GSO_NETDEV])]) | |
a0c9fedc | 541 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [skb_csum_hwoffload_help]) |
e23775f2 PS |
542 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload]) |
543 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload.*uoff], | |
544 | [OVS_DEFINE([HAVE_UDP_OFFLOAD_ARG_UOFF])]) | |
545 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [gro_remcsum]) | |
8ce37339 | 546 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [IFF_PHONY_HEADROOM]) |
6ccf21ca YHW |
547 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device_ops], |
548 | [extended]) | |
7efb1e09 PS |
549 | OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h], |
550 | [netdev_master_upper_dev_link], [upper_priv], | |
551 | [OVS_DEFINE([HAVE_NETDEV_MASTER_UPPER_DEV_LINK_PRIV])]) | |
6c0bf091 JW |
552 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device], |
553 | [max_mtu]) | |
e23775f2 PS |
554 | |
555 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_state]) | |
556 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_register_net_hook]) | |
cd7330d0 PS |
557 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn.*nf_hook_ops], |
558 | [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_OPS])]) | |
0643a78b PS |
559 | OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn], [priv], |
560 | [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_PRIV])]) | |
561 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops], | |
562 | [owner], [OVS_DEFINE([HAVE_NF_HOOKS_OPS_OWNER])]) | |
563 | ||
e4e04c3b | 564 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter_ipv6.h], [nf_ipv6_ops], |
2b64e8fc | 565 | [fragment.*sock], [OVS_DEFINE([HAVE_NF_IPV6_OPS_FRAGMENT])]) |
e2f3178f | 566 | |
6d9b6937 JR |
567 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
568 | [nf_conn], [struct timer_list[[ \t]]*timeout], | |
569 | [OVS_DEFINE([HAVE_NF_CONN_TIMER])]) | |
570 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], | |
571 | [nf_ct_delete(], [OVS_DEFINE([HAVE_NF_CT_DELETE])]) | |
572 | ||
71ce9edd JR |
573 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
574 | [nf_ct_tmpl_alloc], [nf_conntrack_zone], | |
057772cf | 575 | [OVS_DEFINE([HAVE_NF_CT_TMPL_ALLOC_TAKES_STRUCT_ZONE])]) |
71ce9edd JR |
576 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
577 | [nf_ct_get_tuplepr], [struct.net], | |
fa67f8e0 | 578 | [OVS_DEFINE([HAVE_NF_CT_GET_TUPLEPR_TAKES_STRUCT_NET])]) |
dfa791b2 FW |
579 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
580 | [nf_ct_set]) | |
56ec5593 JS |
581 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
582 | [nf_ct_is_untracked]) | |
ac9cd0d2 JS |
583 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_zones.h], |
584 | [nf_ct_zone_init]) | |
459064e7 JS |
585 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
586 | [nf_connlabels_get]) | |
7f2ab8cd JR |
587 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
588 | [nf_connlabels_get], [int bit], | |
589 | [OVS_DEFINE([HAVE_NF_CONNLABELS_GET_TAKES_BIT])]) | |
9f04eabe JR |
590 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
591 | [nf_conn_labels], [words]) | |
0d330e42 JR |
592 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_ct_nat_ext_add]) |
593 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_alloc_null_binding]) | |
594 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_seqadj.h], [nf_ct_seq_adjust]) | |
057772cf | 595 | |
e2f3178f | 596 | OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32]) |
f000c879 | 597 | OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32_max]) |
4aa13c0c | 598 | |
e23775f2 PS |
599 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [get_link_net]) |
600 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [name_assign_type]) | |
601 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [rtnl_create_link.*src_net], | |
602 | [OVS_DEFINE([HAVE_RTNL_CREATE_LINK_SRC_NET])]) | |
603 | OVS_GREP_IFELSE([$KSRC/include/net/net_namespace.h], [possible_net_t]) | |
604 | ||
e3438006 BP |
605 | OVS_GREP_IFELSE([$KSRC/include/linux/rcupdate.h], [rcu_read_lock_held], [], |
606 | [OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], | |
cf6cb3a2 | 607 | [rcu_read_lock_held])]) |
8fa52250 | 608 | OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], [lockdep_rtnl_is_held]) |
997d327d | 609 | |
6a33828d BP |
610 | # Check for the proto_data_valid member in struct sk_buff. The [^@] |
611 | # is necessary because some versions of this header remove the | |
612 | # member but retain the kerneldoc comment that describes it (which | |
613 | # starts with @). The brackets must be doubled because of m4 | |
614 | # quoting rules. | |
e3438006 | 615 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [[[^@]]proto_data_valid], |
6a33828d | 616 | [OVS_DEFINE([HAVE_PROTO_DATA_VALID])]) |
ccb75a28 | 617 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_checksum_start_offset]) |
e23775f2 | 618 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol]) |
f2252c61 | 619 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol_type]) |
c1eb2500 | 620 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_inner_transport_offset]) |
d23239a2 | 621 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [kfree_skb_list]) |
60c4904f | 622 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [rxhash]) |
5640cbd8 JG |
623 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u16.*rxhash], |
624 | [OVS_DEFINE([HAVE_U16_RXHASH])]) | |
e3438006 | 625 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_dst(], |
85444c3f | 626 | [OVS_DEFINE([HAVE_SKB_DST_ACCESSOR_FUNCS])]) |
997d327d | 627 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], |
8828e5c7 | 628 | [skb_copy_from_linear_data_offset]) |
b9c15df9 PS |
629 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], |
630 | [skb_reset_tail_pointer]) | |
e3438006 | 631 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_cow_head]) |
e3438006 | 632 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_warn_if_lro], |
4aa13c0c | 633 | [OVS_DEFINE([HAVE_SKB_WARN_LRO])]) |
e3438006 | 634 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [consume_skb]) |
6c4ea27c | 635 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_frag_page]) |
da4bbeb7 | 636 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_has_frag_list]) |
0aa6fda7 | 637 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_fill_page_desc]) |
d923a695 | 638 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_reset_mac_len]) |
dc0d542d | 639 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_unclone]) |
1edc458d | 640 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_orphan_frags]) |
c253c2e3 MC |
641 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_get_hash(], |
642 | [OVS_DEFINE([HAVE_SKB_GET_HASH])]) | |
e2f3178f | 643 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash]) |
705e9260 PS |
644 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [int.skb_zerocopy(], |
645 | [OVS_DEFINE([HAVE_SKB_ZEROCOPY])]) | |
75e93287 FL |
646 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u8.*l4_rxhash], |
647 | [OVS_DEFINE([HAVE_L4_RXHASH])]) | |
5cce04b6 | 648 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_ensure_writable]) |
97894370 | 649 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_pop]) |
a27c454e | 650 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_vlan_pop]) |
97894370 | 651 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_push]) |
c6e13fcc | 652 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash_if_not_l4]) |
ea3acd7a | 653 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_postpush_rcsum]) |
73daf51a | 654 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [lco_csum]) |
d3c313c1 | 655 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_nfct]) |
0ace0a26 | 656 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_put_zero]) |
4aa13c0c | 657 | |
e3438006 | 658 | OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [bool], |
4aa13c0c | 659 | [OVS_DEFINE([HAVE_BOOL_TYPE])]) |
e3438006 | 660 | OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [__wsum], |
e215ebca | 661 | [OVS_DEFINE([HAVE_CSUM_TYPES])]) |
8dbe1f9f PS |
662 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/types.h], [__wsum], |
663 | [OVS_DEFINE([HAVE_CSUM_TYPES])]) | |
4aa13c0c | 664 | |
e3438006 BP |
665 | OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_replace4]) |
666 | OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_unfold]) | |
4aa13c0c | 667 | |
0d03e51c | 668 | OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [dst_discard_sk]) |
1dba1690 | 669 | OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [__skb_dst_copy]) |
0d03e51c | 670 | |
114fce23 SG |
671 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_has_listeners]) |
672 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [mcgrp_offset]) | |
14002a59 | 673 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [parallel_ops]) |
6233a1bd TG |
674 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [netlink_has_listeners(net->genl_sock], |
675 | [OVS_DEFINE([HAVE_GENL_HAS_LISTENERS_TAKES_NET])]) | |
c623ba49 | 676 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genlmsg_parse]) |
13dd4a97 JS |
677 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_notify.*family], |
678 | [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_FAMILY])]) | |
0643a78b PS |
679 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/genetlink.h], |
680 | [genl_notify], [net], | |
681 | [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_NET])]) | |
682 | ||
13dd4a97 JS |
683 | |
684 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/genetlink.h], | |
685 | [genl_multicast_group], [id]) | |
fdce83a3 | 686 | OVS_GREP_IFELSE([$KSRC/include/net/geneve.h], [geneve_hdr]) |
13dd4a97 | 687 | |
cc1d0dea | 688 | OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_cisco_register]) |
e23775f2 | 689 | OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_handle_offloads]) |
8abaa53c | 690 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [IP6_FH_F_SKIP_RH]) |
e23775f2 | 691 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [ip6_local_out_sk]) |
2d3ef70b | 692 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [__ipv6_addr_jhash]) |
a94ebc39 JS |
693 | OVS_GREP_IFELSE([$KSRC/include/net/ip6_fib.h], [rt6i.*u.dst], |
694 | [OVS_DEFINE([HAVE_RT6INFO_DST_UNION])]) | |
213e1f54 JS |
695 | OVS_GREP_IFELSE([$KSRC/include/net/ip6_route.h], [ip6_frag.*sock], |
696 | [OVS_DEFINE([HAVE_IP_FRAGMENT_TAKES_SOCK])]) | |
697 | ||
91b37647 | 698 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_64bit]) |
e3438006 | 699 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_get_be16]) |
42d5dd95 TG |
700 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be16]) |
701 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be32]) | |
702 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be64]) | |
dd693f9b | 703 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_in_addr]) |
e3438006 | 704 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_find_nested]) |
0fcc086d | 705 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_is_last]) |
6dbd98e6 SH |
706 | OVS_GREP_IFELSE([$KSRC/include/linux/netlink.h], [void.*netlink_set_err], |
707 | [OVS_DEFINE([HAVE_VOID_NETLINK_SET_ERR])]) | |
15702dc9 JB |
708 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netlink.h], |
709 | [nla_parse], [netlink_ext_ack], | |
710 | [OVS_DEFINE([HAVE_NETLINK_EXT_ACK])]) | |
4aa13c0c | 711 | |
c4e976db JG |
712 | OVS_GREP_IFELSE([$KSRC/include/net/sctp/checksum.h], [sctp_compute_cksum]) |
713 | ||
e3438006 | 714 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [ADD_ALL_VLANS_CMD], |
431488e6 | 715 | [OVS_DEFINE([HAVE_VLAN_BUG_WORKAROUND])]) |
1f649f1c | 716 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_insert_tag_set_proto]) |
17e3889f | 717 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [__vlan_insert_tag]) |
e23775f2 | 718 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_get_protocol]) |
5c3f23fe | 719 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [skb_vlan_tagged]) |
ca6da1b1 | 720 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [eth_type_vlan]) |
431488e6 | 721 | |
aadd6ae9 JS |
722 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/dst_metadata.h], |
723 | [metadata_dst_alloc], [metadata_type]) | |
724 | ||
09f27436 JG |
725 | OVS_GREP_IFELSE([$KSRC/include/linux/u64_stats_sync.h], [u64_stats_fetch_begin_irq]) |
726 | ||
3174a818 TG |
727 | OVS_GREP_IFELSE([$KSRC/include/net/vxlan.h], [struct vxlan_metadata], |
728 | [OVS_DEFINE([HAVE_VXLAN_METADATA])]) | |
f6a0c895 | 729 | OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_flow_src_port], |
13dd4a97 JS |
730 | [OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [inet_get_local_port_range(net], |
731 | [OVS_DEFINE([HAVE_UDP_FLOW_SRC_PORT])])]) | |
732 | OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_v4_check]) | |
e23775f2 | 733 | OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_gro_complete]) |
06aeda48 PS |
734 | OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [sk_buff.*udp_tunnel_handle_offloads], |
735 | [OVS_DEFINE([HAVE_UDP_TUNNEL_HANDLE_OFFLOAD_RET_SKB])]) | |
d7e58913 PS |
736 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_sock_cfg], |
737 | [gro_receive]) | |
e23775f2 PS |
738 | |
739 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [ignore_df], | |
f6a0c895 TG |
740 | [OVS_DEFINE([HAVE_IGNORE_DF_RENAME])]) |
741 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netdevice.h], [NET_NAME_UNKNOWN], | |
742 | [OVS_DEFINE([HAVE_NET_NAME_UNKNOWN])]) | |
f285d3e7 | 743 | |
b7ebebcd PS |
744 | OVS_GREP_IFELSE([$KSRC/include/net/sock.h], [sk_no_check_tx]) |
745 | OVS_GREP_IFELSE([$KSRC/include/linux/udp.h], [no_check6_tx]) | |
21a719d6 FL |
746 | OVS_GREP_IFELSE([$KSRC/include/linux/utsrelease.h], [el6], |
747 | [OVS_DEFINE([HAVE_RHEL6_PER_CPU])]) | |
c970aa4e PS |
748 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/protocol.h], |
749 | [udp_add_offload], [net], | |
750 | [OVS_DEFINE([HAVE_UDP_ADD_OFFLOAD_TAKES_NET])]) | |
802d12b6 GR |
751 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/ipv6/nf_defrag_ipv6.h], |
752 | [nf_defrag_ipv6_enable], [net], | |
753 | [OVS_DEFINE([HAVE_DEFRAG_ENABLE_TAKES_NET])]) | |
bef862bc GR |
754 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [family_list], |
755 | [OVS_DEFINE([HAVE_GENL_FAMILY_LIST])]) | |
7f15e8dd GR |
756 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device], |
757 | [needs_free_netdev], | |
758 | [OVS_DEFINE([HAVE_NEEDS_FREE_NETDEV])]) | |
14365643 GR |
759 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/vxlan.h], [vxlan_dev], [cfg], |
760 | [OVS_DEFINE([HAVE_VXLAN_DEV_CFG])]) | |
ac8e3c6d GR |
761 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h], |
762 | [nf_conntrack_helper_put]) | |
21a719d6 | 763 | |
22bcc0e7 JG |
764 | if cmp -s datapath/linux/kcompat.h.new \ |
765 | datapath/linux/kcompat.h >/dev/null 2>&1; then | |
766 | rm datapath/linux/kcompat.h.new | |
064af421 | 767 | else |
22bcc0e7 | 768 | mv datapath/linux/kcompat.h.new datapath/linux/kcompat.h |
064af421 BP |
769 | fi |
770 | ]) | |
771 | ||
772 | dnl Checks for net/if_packet.h. | |
773 | AC_DEFUN([OVS_CHECK_IF_PACKET], | |
774 | [AC_CHECK_HEADER([net/if_packet.h], | |
775 | [HAVE_IF_PACKET=yes], | |
776 | [HAVE_IF_PACKET=no]) | |
777 | AM_CONDITIONAL([HAVE_IF_PACKET], [test "$HAVE_IF_PACKET" = yes]) | |
778 | if test "$HAVE_IF_PACKET" = yes; then | |
779 | AC_DEFINE([HAVE_IF_PACKET], [1], | |
780 | [Define to 1 if net/if_packet.h is available.]) | |
781 | fi]) | |
782 | ||
f6eb6b20 | 783 | dnl Checks for net/if_dl.h. |
d30e714c | 784 | dnl |
d23fa2ed YT |
785 | dnl (We use this as a proxy for checking whether we're building on FreeBSD |
786 | dnl or NetBSD.) | |
9360d9b7 EM |
787 | AC_DEFUN([OVS_CHECK_IF_DL], |
788 | [AC_CHECK_HEADER([net/if_dl.h], | |
789 | [HAVE_IF_DL=yes], | |
790 | [HAVE_IF_DL=no]) | |
791 | AM_CONDITIONAL([HAVE_IF_DL], [test "$HAVE_IF_DL" = yes]) | |
792 | if test "$HAVE_IF_DL" = yes; then | |
793 | AC_DEFINE([HAVE_IF_DL], [1], | |
794 | [Define to 1 if net/if_dl.h is available.]) | |
d30e714c | 795 | |
d23fa2ed | 796 | # On these platforms we use libpcap to access network devices. |
d30e714c | 797 | AC_SEARCH_LIBS([pcap_open_live], [pcap]) |
9360d9b7 EM |
798 | fi]) |
799 | ||
e50097d2 BP |
800 | dnl Checks for buggy strtok_r. |
801 | dnl | |
802 | dnl Some versions of glibc 2.7 has a bug in strtok_r when compiling | |
803 | dnl with optimization that can cause segfaults: | |
804 | dnl | |
805 | dnl http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614. | |
806 | AC_DEFUN([OVS_CHECK_STRTOK_R], | |
807 | [AC_CACHE_CHECK( | |
808 | [whether strtok_r macro segfaults on some inputs], | |
809 | [ovs_cv_strtok_r_bug], | |
810 | [AC_RUN_IFELSE( | |
811 | [AC_LANG_PROGRAM([#include <stdio.h> | |
812 | #include <string.h> | |
813 | ], | |
416e7132 BP |
814 | [[#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 |
815 | /* Assume bug is present, because relatively minor | |
816 | changes in compiler settings (e.g. optimization | |
817 | level) can make it crop up. */ | |
818 | return 1; | |
819 | #else | |
820 | char string[] = ":::"; | |
e50097d2 BP |
821 | char *save_ptr = (char *) 0xc0ffee; |
822 | char *token1, *token2; | |
823 | token1 = strtok_r(string, ":", &save_ptr); | |
824 | token2 = strtok_r(NULL, ":", &save_ptr); | |
5819a7cd | 825 | freopen ("/dev/null", "w", stdout); |
e50097d2 BP |
826 | printf ("%s %s\n", token1, token2); |
827 | return 0; | |
416e7132 | 828 | #endif |
e50097d2 BP |
829 | ]])], |
830 | [ovs_cv_strtok_r_bug=no], | |
831 | [ovs_cv_strtok_r_bug=yes], | |
832 | [ovs_cv_strtok_r_bug=yes])]) | |
833 | if test $ovs_cv_strtok_r_bug = yes; then | |
834 | AC_DEFINE([HAVE_STRTOK_R_BUG], [1], | |
835 | [Define if strtok_r macro segfaults on some inputs]) | |
836 | fi | |
837 | ]) | |
838 | ||
064af421 BP |
839 | dnl ---------------------------------------------------------------------- |
840 | dnl These macros are from GNU PSPP, with the following original license: | |
841 | dnl Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc. | |
842 | dnl This file is free software; the Free Software Foundation | |
843 | dnl gives unlimited permission to copy and/or distribute it, | |
844 | dnl with or without modifications, as long as this notice is preserved. | |
845 | ||
50194820 | 846 | AC_DEFUN([_OVS_CHECK_CC_OPTION], [dnl |
726af752 | 847 | m4_define([ovs_cv_name], [ovs_cv_[]m4_translit([$1], [-= ], [__])])dnl |
064af421 BP |
848 | AC_CACHE_CHECK([whether $CC accepts $1], [ovs_cv_name], |
849 | [ovs_save_CFLAGS="$CFLAGS" | |
50194820 BP |
850 | dnl Include -Werror in the compiler options, because without -Werror |
851 | dnl clang's GCC-compatible compiler driver does not return a failure | |
852 | dnl exit status even though it complains about options it does not | |
853 | dnl understand. | |
c2deac54 YT |
854 | dnl |
855 | dnl Also, check stderr as gcc exits with status 0 for options | |
856 | dnl rejected at getopt level. | |
857 | dnl % touch /tmp/a.c | |
858 | dnl % gcc -g -c -Werror -Qunused-arguments /tmp/a.c; echo $? | |
859 | dnl gcc: unrecognized option '-Qunused-arguments' | |
860 | dnl 0 | |
861 | dnl % | |
50194820 | 862 | CFLAGS="$CFLAGS $WERROR $1" |
37f4615e BP |
863 | AC_COMPILE_IFELSE( |
864 | [AC_LANG_SOURCE([int x;])], | |
865 | [if test -s conftest.err && grep "unrecognized option" conftest.err | |
866 | then | |
867 | ovs_cv_name[]=no | |
868 | else | |
869 | ovs_cv_name[]=yes | |
870 | fi], | |
871 | [ovs_cv_name[]=no]) | |
064af421 BP |
872 | CFLAGS="$ovs_save_CFLAGS"]) |
873 | if test $ovs_cv_name = yes; then | |
83f6c050 | 874 | m4_if([$2], [], [:], [$2]) |
064af421 BP |
875 | else |
876 | m4_if([$3], [], [:], [$3]) | |
877 | fi | |
878 | ]) | |
879 | ||
50194820 BP |
880 | dnl OVS_CHECK_WERROR |
881 | dnl | |
882 | dnl Check whether the C compiler accepts -Werror. | |
883 | dnl Sets $WERROR to "-Werror", if so, and otherwise to the empty string. | |
884 | AC_DEFUN([OVS_CHECK_WERROR], | |
885 | [WERROR= | |
886 | _OVS_CHECK_CC_OPTION([-Werror], [WERROR=-Werror])]) | |
887 | ||
888 | dnl OVS_CHECK_CC_OPTION([OPTION], [ACTION-IF-ACCEPTED], [ACTION-IF-REJECTED]) | |
889 | dnl Check whether the given C compiler OPTION is accepted. | |
890 | dnl If so, execute ACTION-IF-ACCEPTED, otherwise ACTION-IF-REJECTED. | |
891 | AC_DEFUN([OVS_CHECK_CC_OPTION], | |
892 | [AC_REQUIRE([OVS_CHECK_WERROR]) | |
893 | _OVS_CHECK_CC_OPTION([$1], [$2], [$3])]) | |
894 | ||
064af421 BP |
895 | dnl OVS_ENABLE_OPTION([OPTION]) |
896 | dnl Check whether the given C compiler OPTION is accepted. | |
d161c099 | 897 | dnl If so, add it to WARNING_FLAGS. |
064af421 BP |
898 | dnl Example: OVS_ENABLE_OPTION([-Wdeclaration-after-statement]) |
899 | AC_DEFUN([OVS_ENABLE_OPTION], | |
d161c099 BP |
900 | [OVS_CHECK_CC_OPTION([$1], [WARNING_FLAGS="$WARNING_FLAGS $1"]) |
901 | AC_SUBST([WARNING_FLAGS])]) | |
c72e245a BP |
902 | |
903 | dnl OVS_CONDITIONAL_CC_OPTION([OPTION], [CONDITIONAL]) | |
904 | dnl Check whether the given C compiler OPTION is accepted. | |
905 | dnl If so, enable the given Automake CONDITIONAL. | |
906 | ||
907 | dnl Example: OVS_CONDITIONAL_CC_OPTION([-Wno-unused], [HAVE_WNO_UNUSED]) | |
908 | AC_DEFUN([OVS_CONDITIONAL_CC_OPTION], | |
909 | [OVS_CHECK_CC_OPTION( | |
910 | [$1], [ovs_have_cc_option=yes], [ovs_have_cc_option=no]) | |
911 | AM_CONDITIONAL([$2], [test $ovs_have_cc_option = yes])]) | |
064af421 | 912 | dnl ---------------------------------------------------------------------- |
ed2d4f6a BP |
913 | |
914 | dnl Check for too-old XenServer. | |
915 | AC_DEFUN([OVS_CHECK_XENSERVER_VERSION], | |
916 | [AC_CACHE_CHECK([XenServer release], [ovs_cv_xsversion], | |
917 | [if test -e /etc/redhat-release; then | |
918 | ovs_cv_xsversion=`sed -n 's/^XenServer DDK release \([[^-]]*\)-.*/\1/p' /etc/redhat-release` | |
919 | fi | |
920 | if test -z "$ovs_cv_xsversion"; then | |
921 | ovs_cv_xsversion=none | |
922 | fi]) | |
923 | case $ovs_cv_xsversion in | |
924 | none) | |
925 | ;; | |
926 | ||
927 | [[1-9]][[0-9]]* | dnl XenServer 10 or later | |
928 | [[6-9]]* | dnl XenServer 6 or later | |
929 | 5.[[7-9]]* | dnl XenServer 5.7 or later | |
930 | 5.6.[[1-9]][[0-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.1000 or later | |
931 | 5.6.[[2-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.200 or later | |
932 | 5.6.1[[0-9]][[0-9]]) dnl Xenserver 5.6.100 or later | |
933 | ;; | |
934 | ||
935 | *) | |
936 | AC_MSG_ERROR([This appears to be XenServer $ovs_cv_xsversion, but only XenServer 5.6.100 or later is supported. (If you are really using a supported version of XenServer, you may override this error message by specifying 'ovs_cv_xsversion=5.6.100' on the "configure" command line.)]) | |
937 | ;; | |
938 | esac]) | |
29d935d6 | 939 | |
643c0c34 BP |
940 | dnl OVS_CHECK_SPARSE_TARGET |
941 | dnl | |
942 | dnl The "cgcc" script from "sparse" isn't very good at detecting the | |
943 | dnl target for which the code is being built. This helps it out. | |
944 | AC_DEFUN([OVS_CHECK_SPARSE_TARGET], | |
945 | [AC_CACHE_CHECK( | |
946 | [target hint for cgcc], | |
947 | [ac_cv_sparse_target], | |
948 | [AS_CASE([`$CC -dumpmachine 2>/dev/null`], | |
949 | [i?86-* | athlon-*], [ac_cv_sparse_target=x86], | |
950 | [x86_64-*], [ac_cv_sparse_target=x86_64], | |
951 | [ac_cv_sparse_target=other])]) | |
952 | AS_CASE([$ac_cv_sparse_target], | |
953 | [x86], [SPARSEFLAGS= CGCCFLAGS=-target=i86], | |
954 | [x86_64], [SPARSEFLAGS=-m64 CGCCFLAGS=-target=x86_64], | |
955 | [SPARSEFLAGS= CGCCFLAGS=]) | |
956 | AC_SUBST([SPARSEFLAGS]) | |
957 | AC_SUBST([CGCCFLAGS])]) | |
958 | ||
32e96ab7 AZ |
959 | dnl OVS_SPARSE_EXTRA_INCLUDES |
960 | dnl | |
961 | dnl The cgcc script from "sparse" does not search gcc's default | |
962 | dnl search path. Get the default search path from GCC and pass | |
963 | dnl them to sparse. | |
964 | AC_DEFUN([OVS_SPARSE_EXTRA_INCLUDES], | |
965 | AC_SUBST([SPARSE_EXTRA_INCLUDES], | |
966 | [`$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 ' ' `] )) | |
967 | ||
29d935d6 BP |
968 | dnl OVS_ENABLE_SPARSE |
969 | AC_DEFUN([OVS_ENABLE_SPARSE], | |
643c0c34 | 970 | [AC_REQUIRE([OVS_CHECK_SPARSE_TARGET]) |
32e96ab7 | 971 | AC_REQUIRE([OVS_SPARSE_EXTRA_INCLUDES]) |
372d58a4 BP |
972 | : ${SPARSE=sparse} |
973 | AC_SUBST([SPARSE]) | |
974 | AC_CONFIG_COMMANDS_PRE( | |
344f6253 | 975 | [CC='$(if $(C),env REAL_CC="'"$CC"'" CHECK="$(SPARSE) -I $(top_srcdir)/include/sparse $(SPARSEFLAGS) $(SPARSE_EXTRA_INCLUDES) " cgcc $(CGCCFLAGS),'"$CC"')'])]) |
8a8cd0ac | 976 | |
0eaaacac FL |
977 | dnl OVS_CTAGS_IDENTIFIERS |
978 | dnl | |
979 | dnl ctags ignores symbols with extras identifiers. This builds a list of | |
980 | dnl specially handled identifiers to be ignored. | |
981 | AC_DEFUN([OVS_CTAGS_IDENTIFIERS], | |
982 | AC_SUBST([OVS_CTAGS_IDENTIFIERS_LIST], | |
c9990318 | 983 | [`printf %s '-I "'; sed -n 's/^#define \(OVS_[A-Z_]\+\)(\.\.\.)$/\1+/p' ${srcdir}/include/openvswitch/compiler.h | tr \\\n ' ' ; printf '"'`] )) |
0eaaacac | 984 | |
8a8cd0ac BP |
985 | dnl OVS_PTHREAD_SET_NAME |
986 | dnl | |
987 | dnl This checks for three known variants of pthreads functions for setting | |
988 | dnl the name of the current thread: | |
989 | dnl | |
990 | dnl glibc: int pthread_setname_np(pthread_t, const char *name); | |
991 | dnl NetBSD: int pthread_setname_np(pthread_t, const char *format, void *arg); | |
992 | dnl FreeBSD: int pthread_set_name_np(pthread_t, const char *name); | |
993 | dnl | |
994 | dnl For glibc and FreeBSD, the arguments are just a thread and its name. For | |
995 | dnl NetBSD, 'format' is a printf() format string and 'arg' is an argument to | |
996 | dnl provide to it. | |
997 | dnl | |
998 | dnl This macro defines: | |
999 | dnl | |
1000 | dnl glibc: HAVE_GLIBC_PTHREAD_SETNAME_NP | |
1001 | dnl NetBSD: HAVE_NETBSD_PTHREAD_SETNAME_NP | |
1002 | dnl FreeBSD: HAVE_PTHREAD_SET_NAME_NP | |
1003 | AC_DEFUN([OVS_CHECK_PTHREAD_SET_NAME], | |
1004 | [AC_CHECK_FUNCS([pthread_set_name_np]) | |
1005 | if test $ac_cv_func_pthread_set_name_np != yes; then | |
1006 | AC_CACHE_CHECK( | |
1007 | [for pthread_setname_np() variant], | |
1008 | [ovs_cv_pthread_setname_np], | |
1009 | [AC_LINK_IFELSE( | |
a0903134 | 1010 | [AC_LANG_PROGRAM([#include <pthread.h> |
8a8cd0ac | 1011 | ], [pthread_setname_np(pthread_self(), "name");])], |
a0903134 | 1012 | [ovs_cv_pthread_setname_np=glibc], |
8a8cd0ac | 1013 | [AC_LINK_IFELSE( |
a0903134 | 1014 | [AC_LANG_PROGRAM([#include <pthread.h> |
8a8cd0ac BP |
1015 | ], [pthread_setname_np(pthread_self(), "%s", "name");])], |
1016 | [ovs_cv_pthread_setname_np=netbsd], | |
a0903134 | 1017 | [ovs_cv_pthread_setname_np=none])])]) |
8a8cd0ac BP |
1018 | case $ovs_cv_pthread_setname_np in # ( |
1019 | glibc) | |
a0903134 YT |
1020 | AC_DEFINE( |
1021 | [HAVE_GLIBC_PTHREAD_SETNAME_NP], [1], | |
1022 | [Define to 1 if pthread_setname_np() is available and takes 2 parameters (like glibc).]) | |
1023 | ;; # ( | |
8a8cd0ac | 1024 | netbsd) |
a0903134 YT |
1025 | AC_DEFINE( |
1026 | [HAVE_NETBSD_PTHREAD_SETNAME_NP], [1], | |
1027 | [Define to 1 if pthread_setname_np() is available and takes 3 parameters (like NetBSD).]) | |
1028 | ;; | |
8a8cd0ac BP |
1029 | esac |
1030 | fi]) | |
5020f5f0 BP |
1031 | |
1032 | dnl OVS_CHECK_LINUX_HOST. | |
1033 | dnl | |
1034 | dnl Checks whether we're building for a Linux host, based on the presence of | |
1035 | dnl the __linux__ preprocessor symbol, and sets up an Automake conditional | |
1036 | dnl LINUX based on the result. | |
1037 | AC_DEFUN([OVS_CHECK_LINUX_HOST], | |
1038 | [AC_CACHE_CHECK( | |
1039 | [whether __linux__ is defined], | |
1040 | [ovs_cv_linux], | |
1041 | [AC_COMPILE_IFELSE( | |
1042 | [AC_LANG_PROGRAM([enum { LINUX = __linux__};], [])], | |
1043 | [ovs_cv_linux=true], | |
1044 | [ovs_cv_linux=false])]) | |
1045 | AM_CONDITIONAL([LINUX], [$ovs_cv_linux])]) |