projects / mirror_ovs.git / blame
| Commit | Line | Data |
|---|---|---|
| 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$enable_Werror" = Xyes; then | |
| 31 | FLAKE8_WERROR= | |
| 32 | else | |
| 33 | FLAKE8_WERROR=- | |
| 34 | fi | |
| df265086 BP |
35 | AC_SUBST([FLAKE8_WERROR]) |
| 36 | ||
| 37 | # If --enable-Werror is specified, fail the build on sparse warnings. | |
| 38 | if test "X$enable_Werror" = Xyes; then | |
| 39 | SPARSE_WERROR=-Wsparse-error | |
| 40 | else | |
| 41 | SPARSE_WERROR= | |
| 42 | fi | |
| 43 | AC_SUBST([SPARSE_WERROR])]) | |
| a64e37a1 | 44 | |
| e3438006 | 45 | dnl OVS_CHECK_LINUX |
| 064af421 | 46 | dnl |
| 997d327d | 47 | dnl Configure linux kernel source tree |
| e3438006 | 48 | AC_DEFUN([OVS_CHECK_LINUX], [ |
| 8a2d6596 BP |
49 | AC_ARG_WITH([linux], |
| 50 | [AC_HELP_STRING([--with-linux=/path/to/linux], | |
| 51 | [Specify the Linux kernel build directory])]) | |
| 52 | AC_ARG_WITH([linux-source], | |
| 53 | [AC_HELP_STRING([--with-linux-source=/path/to/linux-source], | |
| 54 | [Specify the Linux kernel source directory | |
| a0903134 YT |
55 | (usually figured out automatically from build |
| 56 | directory)])]) | |
| 8a2d6596 BP |
57 | |
| 58 | # Deprecated equivalents to --with-linux, --with-linux-source. | |
| 59 | AC_ARG_WITH([l26]) | |
| 60 | AC_ARG_WITH([l26-source]) | |
| 61 | ||
| 62 | if test X"$with_linux" != X; then | |
| 63 | KBUILD=$with_linux | |
| 64 | elif test X"$with_l26" != X; then | |
| 65 | KBUILD=$with_l26 | |
| 66 | AC_MSG_WARN([--with-l26 is deprecated, please use --with-linux instead]) | |
| 67 | else | |
| 68 | KBUILD= | |
| 69 | fi | |
| 70 | ||
| 71 | if test X"$KBUILD" != X; then | |
| 72 | if test X"$with_linux_source" != X; then | |
| 73 | KSRC=$with_linux_source | |
| 74 | elif test X"$with_l26_source" != X; then | |
| 75 | KSRC=$with_l26_source | |
| 76 | AC_MSG_WARN([--with-l26-source is deprecated, please use --with-linux-source instead]) | |
| 0a89c170 BP |
77 | else |
| 78 | KSRC= | |
| 8a2d6596 BP |
79 | fi |
| 80 | elif test X"$with_linux_source" != X || test X"$with_l26_source" != X; then | |
| 81 | AC_MSG_ERROR([Linux source directory may not be specified without Linux build directory]) | |
| 82 | fi | |
| 83 | ||
| e3438006 BP |
84 | if test -n "$KBUILD"; then |
| 85 | KBUILD=`eval echo "$KBUILD"` | |
| 86 | case $KBUILD in | |
| 0b6d72fc | 87 | /*) ;; |
| e3438006 | 88 | *) KBUILD=`pwd`/$KBUILD ;; |
| 0b6d72fc | 89 | esac |
| 064af421 | 90 | |
| 7c9e113b BP |
91 | # The build directory is what the user provided. |
| 92 | # Make sure that it exists. | |
| 8a2d6596 | 93 | AC_MSG_CHECKING([for Linux build directory]) |
| e3438006 | 94 | if test -d "$KBUILD"; then |
| a0903134 YT |
95 | AC_MSG_RESULT([$KBUILD]) |
| 96 | AC_SUBST(KBUILD) | |
| 064af421 | 97 | else |
| a0903134 YT |
98 | AC_MSG_RESULT([no]) |
| 99 | AC_ERROR([source dir $KBUILD doesn't exist]) | |
| 064af421 BP |
100 | fi |
| 101 | ||
| 7c9e113b | 102 | # Debian breaks kernel headers into "source" header and "build" headers. |
| e3438006 | 103 | # We want the source headers, but $KBUILD gives us the "build" headers. |
| 7c9e113b | 104 | # Use heuristics to find the source headers. |
| 8a2d6596 | 105 | AC_MSG_CHECKING([for Linux source directory]) |
| e3438006 BP |
106 | if test -n "$KSRC"; then |
| 107 | KSRC=`eval echo "$KSRC"` | |
| 108 | case $KSRC in | |
| f5fb5de6 | 109 | /*) ;; |
| e3438006 | 110 | *) KSRC=`pwd`/$KSRC ;; |
| b57f675c | 111 | esac |
| e3438006 | 112 | if test ! -e $KSRC/include/linux/kernel.h; then |
| 53319f95 | 113 | AC_MSG_ERROR([$KSRC is not a kernel source directory]) |
| f5fb5de6 BP |
114 | fi |
| 115 | else | |
| e3438006 BP |
116 | KSRC=$KBUILD |
| 117 | if test ! -e $KSRC/include/linux/kernel.h; then | |
| fe0731b1 BP |
118 | # Debian kernel build Makefiles tend to include a line of the form: |
| 119 | # MAKEARGS := -C /usr/src/linux-headers-3.2.0-1-common O=/usr/src/linux-headers-3.2.0-1-486 | |
| 120 | # First try to extract the source directory from this line. | |
| 121 | KSRC=`sed -n 's/.*-C \([[^ ]]*\).*/\1/p' "$KBUILD"/Makefile` | |
| 122 | if test ! -e "$KSRC"/include/linux/kernel.h; then | |
| 123 | # Didn't work. Fall back to name-based heuristics that used to work. | |
| 124 | case `echo "$KBUILD" | sed 's,/*$,,'` in # ( | |
| 125 | */build) | |
| 126 | KSRC=`echo "$KBUILD" | sed 's,/build/*$,/source,'` | |
| 127 | ;; # ( | |
| 128 | *) | |
| 129 | KSRC=`(cd $KBUILD && pwd -P) | sed 's,-[[^-]]*$,-common,'` | |
| 130 | ;; | |
| 131 | esac | |
| 132 | fi | |
| f5fb5de6 | 133 | fi |
| fe0731b1 | 134 | if test ! -e "$KSRC"/include/linux/kernel.h; then |
| 8a2d6596 | 135 | AC_MSG_ERROR([cannot find source directory (please use --with-linux-source)]) |
| 7c9e113b BP |
136 | fi |
| 137 | fi | |
| e3438006 | 138 | AC_MSG_RESULT([$KSRC]) |
| 7c9e113b BP |
139 | |
| 140 | AC_MSG_CHECKING([for kernel version]) | |
| 71fe9970 | 141 | version=`sed -n 's/^VERSION = //p' "$KSRC/Makefile"` |
| e3438006 BP |
142 | patchlevel=`sed -n 's/^PATCHLEVEL = //p' "$KSRC/Makefile"` |
| 143 | sublevel=`sed -n 's/^SUBLEVEL = //p' "$KSRC/Makefile"` | |
| 71fe9970 | 144 | if test X"$version" = X || test X"$patchlevel" = X; then |
| 7c9e113b | 145 | AC_ERROR([cannot determine kernel version]) |
| 71fe9970 BP |
146 | elif test X"$sublevel" = X; then |
| 147 | kversion=$version.$patchlevel | |
| 148 | else | |
| 149 | kversion=$version.$patchlevel.$sublevel | |
| 7c9e113b | 150 | fi |
| 71fe9970 BP |
151 | AC_MSG_RESULT([$kversion]) |
| 152 | ||
| 3afcde43 | 153 | if test "$version" -ge 4; then |
| 1465deac | 154 | if test "$version" = 4 && test "$patchlevel" -le 13; then |
| 3afcde43 | 155 | : # Linux 4.x |
| d76aabea | 156 | else |
| 1465deac | 157 | AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 4.13.x is not supported (please refer to the FAQ for advice)]) |
| d76aabea | 158 | fi |
| 8063e095 | 159 | elif test "$version" = 3 && test "$patchlevel" -ge 10; then |
| 3afcde43 | 160 | : # Linux 3.x |
| 71fe9970 | 161 | else |
| 8063e095 | 162 | AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version 3.10 or later is required]) |
| 064af421 | 163 | fi |
| 2520f452 IY |
164 | if (test ! -e "$KBUILD"/include/linux/version.h && \ |
| 165 | test ! -e "$KBUILD"/include/generated/uapi/linux/version.h)|| \ | |
| e3438006 BP |
166 | (test ! -e "$KBUILD"/include/linux/autoconf.h && \ |
| 167 | test ! -e "$KBUILD"/include/generated/autoconf.h); then | |
| a0903134 | 168 | AC_MSG_ERROR([Linux kernel source in $KBUILD is not configured]) |
| 064af421 | 169 | fi |
| e3438006 | 170 | OVS_CHECK_LINUX_COMPAT |
| 064af421 | 171 | fi |
| e3438006 | 172 | AM_CONDITIONAL(LINUX_ENABLED, test -n "$KBUILD") |
| 064af421 BP |
173 | ]) |
| 174 | ||
| 1dc0da67 PB |
175 | dnl OVS_CHECK_LINUX_TC |
| 176 | dnl | |
| 177 | dnl Configure Linux tc compat. | |
| 178 | AC_DEFUN([OVS_CHECK_LINUX_TC], [ | |
| 179 | AC_COMPILE_IFELSE([ | |
| 180 | AC_LANG_PROGRAM([#include <linux/pkt_cls.h>], [ | |
| 2517aa5a | 181 | int x = TCA_FLOWER_KEY_IP_TTL_MASK; |
| 1dc0da67 | 182 | ])], |
| 2517aa5a PB |
183 | [AC_DEFINE([HAVE_TCA_FLOWER_KEY_IP_TTL_MASK], [1], |
| 184 | [Define to 1 if TCA_FLOWER_KEY_IP_TTL_MASK is avaiable.])]) | |
| 1dc0da67 PB |
185 | |
| 186 | AC_COMPILE_IFELSE([ | |
| 187 | AC_LANG_PROGRAM([#include <linux/tc_act/tc_vlan.h>], [ | |
| 188 | int x = TCA_VLAN_PUSH_VLAN_PRIORITY; | |
| 189 | ])], | |
| 190 | [AC_DEFINE([HAVE_TCA_VLAN_PUSH_VLAN_PRIORITY], [1], | |
| 191 | [Define to 1 if TCA_VLAN_PUSH_VLAN_PRIORITY is avaiable.])]) | |
| 192 | ||
| 193 | AC_COMPILE_IFELSE([ | |
| 194 | AC_LANG_PROGRAM([#include <linux/tc_act/tc_tunnel_key.h>], [ | |
| 195 | int x = TCA_TUNNEL_KEY_ENC_DST_PORT; | |
| 196 | ])], | |
| 197 | [AC_DEFINE([HAVE_TCA_TUNNEL_KEY_ENC_DST_PORT], [1], | |
| 198 | [Define to 1 if TCA_TUNNEL_KEY_ENC_DST_PORT is avaiable.])]) | |
| e5b1657e PB |
199 | |
| 200 | AC_COMPILE_IFELSE([ | |
| 201 | AC_LANG_PROGRAM([#include <linux/tc_act/tc_pedit.h>], [ | |
| 202 | int x = TCA_PEDIT_KEY_EX_HDR_TYPE_UDP; | |
| 203 | ])], | |
| 204 | [AC_DEFINE([HAVE_TCA_PEDIT_KEY_EX_HDR_TYPE_UDP], [1], | |
| 205 | [Define to 1 if TCA_PEDIT_KEY_EX_HDR_TYPE_UDP is avaiable.])]) | |
| 1dc0da67 PB |
206 | ]) |
| 207 | ||
| 8a9562d2 PS |
208 | dnl OVS_CHECK_DPDK |
| 209 | dnl | |
| 210 | dnl Configure DPDK source tree | |
| 211 | AC_DEFUN([OVS_CHECK_DPDK], [ | |
| 212 | AC_ARG_WITH([dpdk], | |
| 213 | [AC_HELP_STRING([--with-dpdk=/path/to/dpdk], | |
| 4c16ee48 MV |
214 | [Specify the DPDK build directory])], |
| 215 | [have_dpdk=true]) | |
| 8a9562d2 | 216 | |
| 40b5ea86 | 217 | AC_MSG_CHECKING([whether dpdk datapath is enabled]) |
| 4c16ee48 | 218 | if test "$have_dpdk" != true || test "$with_dpdk" = no; then |
| 40b5ea86 BB |
219 | AC_MSG_RESULT([no]) |
| 220 | DPDKLIB_FOUND=false | |
| 221 | else | |
| 222 | AC_MSG_RESULT([yes]) | |
| 223 | case "$with_dpdk" in | |
| 224 | yes) | |
| 225 | DPDK_AUTO_DISCOVER="true" | |
| 96195c09 CE |
226 | PKG_CHECK_MODULES([DPDK], [libdpdk], |
| 227 | [DPDK_INCLUDE="$DPDK_CFLAGS"], | |
| 228 | [DPDK_INCLUDE="-I/usr/local/include/dpdk -I/usr/include/dpdk"]) | |
| 40b5ea86 BB |
229 | ;; |
| 230 | *) | |
| 231 | DPDK_AUTO_DISCOVER="false" | |
| 96195c09 | 232 | DPDK_INCLUDE_PATH="$with_dpdk/include" |
| 40b5ea86 BB |
233 | # If 'with_dpdk' is passed install directory, point to headers |
| 234 | # installed in $DESTDIR/$prefix/include/dpdk | |
| 96195c09 CE |
235 | if test -e "$DPDK_INCLUDE_PATH/rte_config.h"; then |
| 236 | DPDK_INCLUDE="-I$DPDK_INCLUDE_PATH" | |
| 237 | elif test -e "$DPDK_INCLUDE_PATH/dpdk/rte_config.h"; then | |
| 238 | DPDK_INCLUDE="-I$DPDK_INCLUDE_PATH/dpdk" | |
| 214ac6d4 | 239 | fi |
| 40b5ea86 BB |
240 | DPDK_LIB_DIR="$with_dpdk/lib" |
| 241 | ;; | |
| 242 | esac | |
| 8a9562d2 | 243 | |
| 18f777b2 | 244 | DPDK_LIB="-ldpdk" |
| 10d01ad2 | 245 | DPDK_EXTRA_LIB="" |
| 8a9562d2 | 246 | |
| 95626395 TG |
247 | ovs_save_CFLAGS="$CFLAGS" |
| 248 | ovs_save_LDFLAGS="$LDFLAGS" | |
| 96195c09 | 249 | CFLAGS="$CFLAGS $DPDK_INCLUDE" |
| 40b5ea86 BB |
250 | if test "$DPDK_AUTO_DISCOVER" = "false"; then |
| 251 | LDFLAGS="$LDFLAGS -L${DPDK_LIB_DIR}" | |
| 252 | fi | |
| 253 | ||
| 435aaddd CL |
254 | AC_COMPILE_IFELSE([ |
| 255 | AC_LANG_PROGRAM( | |
| 256 | [ | |
| 257 | #include <rte_config.h> | |
| 258 | #if RTE_LIBRTE_VHOST_NUMA | |
| 259 | #error | |
| 260 | #endif | |
| 261 | ], []) | |
| 262 | ], [], | |
| 263 | [AC_SEARCH_LIBS([get_mempolicy],[numa],[],[AC_MSG_ERROR([unable to find libnuma, install the dependency package])]) | |
| 5b9bf9e0 CL |
264 | DPDK_EXTRA_LIB="-lnuma" |
| 265 | AC_DEFINE([VHOST_NUMA], [1], [NUMA Aware vHost support detected in DPDK.])]) | |
| 16dfb8fa | 266 | |
| 4b88d678 CL |
267 | AC_COMPILE_IFELSE([ |
| 268 | AC_LANG_PROGRAM( | |
| 269 | [ | |
| 270 | #include <rte_config.h> | |
| 271 | #if RTE_LIBRTE_PMD_PCAP | |
| 272 | #error | |
| 273 | #endif | |
| 274 | ], []) | |
| 275 | ], [], | |
| 276 | [AC_SEARCH_LIBS([pcap_dump],[pcap],[],[AC_MSG_ERROR([unable to find libpcap, install the dependency package])]) | |
| 277 | DPDK_EXTRA_LIB="-lpcap" | |
| 278 | AC_COMPILE_IFELSE([ | |
| 279 | AC_LANG_PROGRAM( | |
| 280 | [ | |
| 281 | #include <rte_config.h> | |
| 282 | #if RTE_LIBRTE_PDUMP | |
| 283 | #error | |
| 284 | #endif | |
| 285 | ], []) | |
| 286 | ], [], | |
| 287 | [AC_DEFINE([DPDK_PDUMP], [1], [DPDK pdump enabled in OVS.])]) | |
| 288 | ]) | |
| 289 | ||
| c1223b11 DDP |
290 | # On some systems we have to add -ldl to link with dpdk |
| 291 | # | |
| 292 | # This code, at first, tries to link without -ldl (""), | |
| 293 | # then adds it and tries again. | |
| 294 | # Before each attempt the search cache must be unset, | |
| 295 | # otherwise autoconf will stick with the old result | |
| 296 | ||
| 40b5ea86 | 297 | DPDKLIB_FOUND=false |
| c1223b11 DDP |
298 | save_LIBS=$LIBS |
| 299 | for extras in "" "-ldl"; do | |
| 435aaddd | 300 | LIBS="$DPDK_LIB $extras $save_LIBS $DPDK_EXTRA_LIB" |
| c1223b11 DDP |
301 | AC_LINK_IFELSE( |
| 302 | [AC_LANG_PROGRAM([#include <rte_config.h> | |
| 303 | #include <rte_eal.h>], | |
| 304 | [int rte_argc; char ** rte_argv; | |
| 305 | rte_eal_init(rte_argc, rte_argv);])], | |
| 40b5ea86 BB |
306 | [DPDKLIB_FOUND=true]) |
| 307 | if $DPDKLIB_FOUND; then | |
| c1223b11 DDP |
308 | break |
| 309 | fi | |
| 310 | done | |
| 40b5ea86 BB |
311 | |
| 312 | # If linking unsuccessful | |
| 313 | if test "$DPDKLIB_FOUND" = "false" ; then | |
| 314 | if $DPDK_AUTO_DISCOVER; then | |
| 315 | 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]) | |
| 316 | else | |
| 317 | AC_MSG_ERROR([Could not find DPDK libraries in $DPDK_LIB_DIR]) | |
| 318 | fi | |
| c1223b11 | 319 | fi |
| 95626395 TG |
320 | CFLAGS="$ovs_save_CFLAGS" |
| 321 | LDFLAGS="$ovs_save_LDFLAGS" | |
| 40b5ea86 BB |
322 | if test "$DPDK_AUTO_DISCOVER" = "false"; then |
| 323 | OVS_LDFLAGS="$OVS_LDFLAGS -L$DPDK_LIB_DIR" | |
| 324 | fi | |
| 96195c09 | 325 | OVS_CFLAGS="$OVS_CFLAGS $DPDK_INCLUDE" |
| ab2a3154 | 326 | OVS_ENABLE_OPTION([-mssse3]) |
| 8a9562d2 | 327 | |
| 3c94676c | 328 | # DPDK pmd drivers are not linked unless --whole-archive is used. |
| d7310583 DDP |
329 | # |
| 330 | # This happens because the rest of the DPDK code doesn't use any symbol in | |
| 331 | # the pmd driver objects, and the drivers register themselves using an | |
| 332 | # __attribute__((constructor)) function. | |
| 333 | # | |
| 334 | # These options are specified inside a single -Wl directive to prevent | |
| 335 | # autotools from reordering them. | |
| 3c94676c | 336 | DPDK_vswitchd_LDFLAGS=-Wl,--whole-archive,$DPDK_LIB,--no-whole-archive |
| 9475dfeb | 337 | AC_SUBST([DPDK_vswitchd_LDFLAGS]) |
| 8a9562d2 | 338 | AC_DEFINE([DPDK_NETDEV], [1], [System uses the DPDK module.]) |
| 8a9562d2 PS |
339 | fi |
| 340 | ||
| 40b5ea86 | 341 | AM_CONDITIONAL([DPDK_NETDEV], test "$DPDKLIB_FOUND" = true) |
| 8a9562d2 PS |
342 | ]) |
| 343 | ||
| 8828e5c7 | 344 | dnl OVS_GREP_IFELSE(FILE, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
| 064af421 BP |
345 | dnl |
| 346 | dnl Greps FILE for REGEX. If it matches, runs IF-MATCH, otherwise IF-NO-MATCH. | |
| 8828e5c7 BP |
347 | dnl If IF-MATCH is empty then it defines to OVS_DEFINE(HAVE_<REGEX>), with |
| 348 | dnl <REGEX> translated to uppercase. | |
| 064af421 BP |
349 | AC_DEFUN([OVS_GREP_IFELSE], [ |
| 350 | AC_MSG_CHECKING([whether $2 matches in $1]) | |
| 7507ec48 JG |
351 | if test -f $1; then |
| 352 | grep '$2' $1 >/dev/null 2>&1 | |
| 353 | status=$? | |
| 354 | case $status in | |
| 997d327d | 355 | 0) |
| 7507ec48 | 356 | AC_MSG_RESULT([yes]) |
| 8828e5c7 | 357 | m4_if([$3], [], [OVS_DEFINE([HAVE_]m4_toupper([$2]))], [$3]) |
| 7507ec48 | 358 | ;; |
| 997d327d | 359 | 1) |
| 7507ec48 JG |
360 | AC_MSG_RESULT([no]) |
| 361 | $4 | |
| 362 | ;; | |
| 997d327d | 363 | *) |
| 7507ec48 JG |
364 | AC_MSG_ERROR([grep exited with status $status]) |
| 365 | ;; | |
| 366 | esac | |
| 367 | else | |
| 368 | AC_MSG_RESULT([file not found]) | |
| 369 | $4 | |
| 370 | fi | |
| 064af421 BP |
371 | ]) |
| 372 | ||
| 13dd4a97 JS |
373 | dnl OVS_FIND_FIELD_IFELSE(FILE, STRUCTURE, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
| 374 | dnl | |
| 375 | dnl Looks for STRUCTURE in FILE. If it is found, greps for REGEX within the | |
| 376 | dnl structure definition. If this is successful, runs IF-MATCH, otherwise | |
| 377 | dnl IF_NO_MATCH. If IF-MATCH is empty then it defines to | |
| 378 | dnl OVS_DEFINE(HAVE_<STRUCTURE>_WITH_<REGEX>), with <STRUCTURE> and <REGEX> | |
| 379 | dnl translated to uppercase. | |
| 380 | AC_DEFUN([OVS_FIND_FIELD_IFELSE], [ | |
| 381 | AC_MSG_CHECKING([whether $2 has member $3 in $1]) | |
| 382 | if test -f $1; then | |
| 83a27884 | 383 | awk '/$2.{/,/^}/' $1 2>/dev/null | grep '$3' >/dev/null |
| 13dd4a97 JS |
384 | status=$? |
| 385 | case $status in | |
| 386 | 0) | |
| 387 | AC_MSG_RESULT([yes]) | |
| 388 | m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4]) | |
| 389 | ;; | |
| 390 | 1) | |
| 391 | AC_MSG_RESULT([no]) | |
| 392 | $5 | |
| 393 | ;; | |
| 394 | *) | |
| 395 | AC_MSG_ERROR([grep exited with status $status]) | |
| 396 | ;; | |
| 397 | esac | |
| 398 | else | |
| 399 | AC_MSG_RESULT([file not found]) | |
| 400 | $5 | |
| 401 | fi | |
| 402 | ]) | |
| 403 | ||
| 71ce9edd JR |
404 | dnl OVS_FIND_PARAM_IFELSE(FILE, FUNCTION, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
| 405 | dnl | |
| 406 | dnl Looks for FUNCTION in FILE. If it is found, greps for REGEX within | |
| 407 | dnl the function signature starting from the line matching FUNCTION | |
| 408 | dnl and ending with the line containing the closing parenthesis. If | |
| 409 | dnl this is successful, runs IF-MATCH, otherwise IF_NO_MATCH. If | |
| 410 | dnl IF-MATCH is empty then it defines to | |
| 411 | dnl OVS_DEFINE(HAVE_<FUNCTION>_WITH_<REGEX>), with <FUNCTION> and | |
| 412 | dnl <REGEX> translated to uppercase. | |
| 413 | AC_DEFUN([OVS_FIND_PARAM_IFELSE], [ | |
| 414 | AC_MSG_CHECKING([whether $2 has parameter $3 in $1]) | |
| 415 | if test -f $1; then | |
| 416 | awk '/$2[[ \t\n]]*\(/,/\)/' $1 2>/dev/null | grep '$3' >/dev/null | |
| 417 | status=$? | |
| 418 | case $status in | |
| 419 | 0) | |
| 420 | AC_MSG_RESULT([yes]) | |
| 421 | m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4]) | |
| 422 | ;; | |
| 423 | 1) | |
| 424 | AC_MSG_RESULT([no]) | |
| 425 | $5 | |
| 426 | ;; | |
| 427 | *) | |
| 428 | AC_MSG_ERROR([grep exited with status $status]) | |
| 429 | ;; | |
| 430 | esac | |
| 431 | else | |
| 432 | AC_MSG_RESULT([file not found]) | |
| 433 | $5 | |
| 434 | fi | |
| 435 | ]) | |
| 436 | ||
| 064af421 BP |
437 | dnl OVS_DEFINE(NAME) |
| 438 | dnl | |
| 439 | dnl Defines NAME to 1 in kcompat.h. | |
| 440 | AC_DEFUN([OVS_DEFINE], [ | |
| 22bcc0e7 | 441 | echo '#define $1 1' >> datapath/linux/kcompat.h.new |
| 064af421 BP |
442 | ]) |
| 443 | ||
| e3438006 | 444 | dnl OVS_CHECK_LINUX_COMPAT |
| 064af421 | 445 | dnl |
| 8063e095 | 446 | dnl Runs various Autoconf checks on the Linux kernel source in |
| e3438006 BP |
447 | dnl the directory in $KBUILD. |
| 448 | AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [ | |
| 22bcc0e7 JG |
449 | rm -f datapath/linux/kcompat.h.new |
| 450 | mkdir -p datapath/linux | |
| 451 | : > datapath/linux/kcompat.h.new | |
| 4aa13c0c | 452 | |
| e23775f2 PS |
453 | echo '#include <linux/version.h> |
| 454 | #ifndef RHEL_RELEASE_CODE | |
| 455 | #define RHEL_RELEASE_CODE 0 | |
| 456 | #define RHEL_RELEASE_VERSION(a, b) 0 | |
| 457 | #endif' >> datapath/linux/kcompat.h.new | |
| 458 | ||
| e3438006 | 459 | OVS_GREP_IFELSE([$KSRC/arch/x86/include/asm/checksum_32.h], [src_err,], |
| 25fb3596 JG |
460 | [OVS_DEFINE([HAVE_CSUM_COPY_DBG])]) |
| 461 | ||
| e23775f2 PS |
462 | OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup.*net], |
| 463 | [OVS_DEFINE([HAVE_IPV6_DST_LOOKUP_NET])]) | |
| 464 | OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_stub]) | |
| 465 | ||
| e3438006 | 466 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [ERR_CAST]) |
| 4303ec34 | 467 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [IS_ERR_OR_NULL]) |
| 54125dd0 | 468 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [PTR_ERR_OR_ZERO]) |
| 4aa13c0c | 469 | |
| d923a695 | 470 | OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [eth_hw_addr_random]) |
| e2f3178f | 471 | OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [ether_addr_copy]) |
| d923a695 | 472 | |
| e23775f2 PS |
473 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [IFLA_GENEVE_TOS]) |
| 474 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [rtnl_link_stats64]) | |
| 475 | OVS_GREP_IFELSE([$KSRC/include/linux/if_link.h], [rtnl_link_stats64]) | |
| d923a695 | 476 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_set_encap_proto]) |
| ec96e663 | 477 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_hwaccel_push_inside]) |
| d923a695 | 478 | |
| e3438006 | 479 | OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [ipv4_is_multicast]) |
| 46d69d18 | 480 | OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [proto_ports_offset]) |
| 2ea82414 PS |
481 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*dst_entry], |
| 482 | [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_DST_ENTRY])]) | |
| e23775f2 PS |
483 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*net], |
| 484 | [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_NET])]) | |
| 485 | ||
| 13dd4a97 JS |
486 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [inet_get_local_port_range.*net], |
| 487 | [OVS_DEFINE([HAVE_INET_GET_LOCAL_PORT_RANGE_USING_NET])]) | |
| 39c0ff22 JS |
488 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_defrag.*net], |
| 489 | [OVS_DEFINE([HAVE_IP_DEFRAG_TAKES_NET])]) | |
| 0374bcbe EB |
490 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h], |
| 491 | [ip_do_fragment], [net], | |
| 492 | [OVS_DEFINE([HAVE_IP_DO_FRAGMENT_TAKES_NET])]) | |
| 0643a78b PS |
493 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h], |
| 494 | [ip_local_out], [net], | |
| 495 | [OVS_DEFINE([HAVE_IP_LOCAL_OUT_TAKES_NET])]) | |
| 496 | ||
| cfda4537 | 497 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_skb_dst_mtu]) |
| 0f09d6e3 JS |
498 | |
| 499 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [IPSKB_FRAG_PMTU], | |
| 500 | [OVS_DEFINE([HAVE_CORRECT_MRU_HANDLING])]) | |
| 06f1a61a | 501 | OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], [__ip_tunnel_change_mtu]) |
| 595e069a JS |
502 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [hashfn.*const], |
| 503 | [OVS_DEFINE([HAVE_INET_FRAGS_CONST])]) | |
| 8f00ece9 JS |
504 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [last_in], |
| 505 | [OVS_DEFINE([HAVE_INET_FRAGS_LAST_IN])]) | |
| e0d45da3 | 506 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evicting]) |
| ccd0a13b | 507 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evictor]) |
| 91408ae0 JS |
508 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags], |
| 509 | [frags_work]) | |
| d1c390e6 JS |
510 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags], |
| 511 | [rwlock]) | |
| e0d45da3 JS |
512 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_queue], |
| 513 | [list_evictor]) | |
| 38f45380 | 514 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_lru_move]) |
| 6ccf21ca YHW |
515 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/inet_frag.h], |
| 516 | [sub_frag_mem_limit], [struct.netns_frags], | |
| 517 | [OVS_DEFINE([HAVE_SUB_FRAG_MEM_LIMIT_ARG_STRUCT_NETNS_FRAGS])]) | |
| 518 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [void.*inet_frags_init], | |
| 519 | [OVS_DEFINE([HAVE_VOID_INET_FRAGS_INIT])]) | |
| 401da7b9 JS |
520 | OVS_GREP_IFELSE([$KSRC/include/net/inetpeer.h], [vif], |
| 521 | [OVS_DEFINE([HAVE_INETPEER_VIF_SUPPORT])]) | |
| 8f00ece9 | 522 | |
| f2252c61 PS |
523 | dnl Check for dst_cache and ipv6 lable to use backported tunnel infrastructure. |
| 524 | dnl OVS does not really need ipv6 label field, but its presence signifies that | |
| 525 | dnl the stack has all required ipv6 support. | |
| 526 | dnl OVS also does not need dst_cache But this dependency allows us to write | |
| 527 | dnl much cleaner code. | |
| 528 | ||
| 3259c4ff PS |
529 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ip_tunnels.h], [ip_tunnel_key], |
| 530 | [label], | |
| 531 | [OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], | |
| 532 | [iptunnel_pull_offloads], | |
| 997d327d | 533 | [OVS_GREP_IFELSE([$KSRC/include/net/dst_cache.h], [dst_cache], |
| f2252c61 | 534 | [OVS_DEFINE([USE_UPSTREAM_TUNNEL])])])]) |
| 4aa13c0c | 535 | |
| 65590144 YHW |
536 | OVS_GREP_IFELSE([$KSRC/include/net/mpls.h], [mpls_hdr], |
| 537 | [OVS_DEFINE([MPLS_HEADER_IS_L3])]) | |
| fdce83a3 PS |
538 | OVS_GREP_IFELSE([$KSRC/include/linux/net.h], [sock_create_kern.*net], |
| 539 | [OVS_DEFINE([HAVE_SOCK_CREATE_KERN_NET])]) | |
| aad7cb91 | 540 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_fill_metadata_dst]) |
| e3438006 BP |
541 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_disable_lro]) |
| 542 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_stats]) | |
| 543 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_by_index_rcu]) | |
| 3f506f07 | 544 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_recursion_level]) |
| 42d5dd95 | 545 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [__skb_gso_segment]) |
| 96b82f6d | 546 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [skb_gso_error_unwind]) |
| 42d5dd95 | 547 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [can_checksum_protocol]) |
| e23775f2 | 548 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_get_iflink]) |
| 0a0d9095 PS |
549 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_features_check], |
| 550 | [OVS_DEFINE([USE_UPSTREAM_TUNNEL_GSO])]) | |
| f2252c61 PS |
551 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_vxlan_port]) |
| 552 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_geneve_port]) | |
| d1890de5 | 553 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netdev_features_t]) |
| 8063e095 PS |
554 | dnl Ubuntu kernel 3.13 has defined this struct but not used for netdev->tstats. |
| 555 | dnl So check type of tstats. | |
| 556 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [pcpu_sw_netstats.*tstats], | |
| 557 | [OVS_DEFINE([HAVE_PCPU_SW_NETSTATS])]) | |
| e23775f2 PS |
558 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netif_needs_gso.*net_device], |
| 559 | [OVS_DEFINE([HAVE_NETIF_NEEDS_GSO_NETDEV])]) | |
| a0c9fedc | 560 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [skb_csum_hwoffload_help]) |
| e23775f2 PS |
561 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload]) |
| 562 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload.*uoff], | |
| 563 | [OVS_DEFINE([HAVE_UDP_OFFLOAD_ARG_UOFF])]) | |
| 564 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [gro_remcsum]) | |
| 8ce37339 | 565 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [IFF_PHONY_HEADROOM]) |
| 6ccf21ca YHW |
566 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device_ops], |
| 567 | [extended]) | |
| 7efb1e09 PS |
568 | OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h], |
| 569 | [netdev_master_upper_dev_link], [upper_priv], | |
| 570 | [OVS_DEFINE([HAVE_NETDEV_MASTER_UPPER_DEV_LINK_PRIV])]) | |
| b7ab7316 YHW |
571 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], |
| 572 | [netdev_master_upper_dev_link_rh], | |
| 573 | [OVS_DEFINE([HAVE_NETDEV_MASTER_UPPER_DEV_LINK_RH])]) | |
| 574 | ||
| 6c0bf091 JW |
575 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device], |
| 576 | [max_mtu]) | |
| e23775f2 PS |
577 | |
| 578 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_state]) | |
| 579 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_register_net_hook]) | |
| cd7330d0 PS |
580 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn.*nf_hook_ops], |
| 581 | [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_OPS])]) | |
| 0643a78b PS |
582 | OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn], [priv], |
| 583 | [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_PRIV])]) | |
| 584 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops], | |
| 585 | [owner], [OVS_DEFINE([HAVE_NF_HOOKS_OPS_OWNER])]) | |
| 586 | ||
| e4e04c3b | 587 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter_ipv6.h], [nf_ipv6_ops], |
| 2b64e8fc | 588 | [fragment.*sock], [OVS_DEFINE([HAVE_NF_IPV6_OPS_FRAGMENT])]) |
| e2f3178f | 589 | |
| 6d9b6937 JR |
590 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
| 591 | [nf_conn], [struct timer_list[[ \t]]*timeout], | |
| 592 | [OVS_DEFINE([HAVE_NF_CONN_TIMER])]) | |
| 593 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], | |
| 594 | [nf_ct_delete(], [OVS_DEFINE([HAVE_NF_CT_DELETE])]) | |
| 595 | ||
| 71ce9edd JR |
596 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
| 597 | [nf_ct_tmpl_alloc], [nf_conntrack_zone], | |
| 057772cf | 598 | [OVS_DEFINE([HAVE_NF_CT_TMPL_ALLOC_TAKES_STRUCT_ZONE])]) |
| 71ce9edd JR |
599 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
| 600 | [nf_ct_get_tuplepr], [struct.net], | |
| fa67f8e0 | 601 | [OVS_DEFINE([HAVE_NF_CT_GET_TUPLEPR_TAKES_STRUCT_NET])]) |
| dfa791b2 FW |
602 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
| 603 | [nf_ct_set]) | |
| 56ec5593 JS |
604 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
| 605 | [nf_ct_is_untracked]) | |
| ac9cd0d2 JS |
606 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_zones.h], |
| 607 | [nf_ct_zone_init]) | |
| 459064e7 JS |
608 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
| 609 | [nf_connlabels_get]) | |
| 7f2ab8cd JR |
610 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
| 611 | [nf_connlabels_get], [int bit], | |
| 612 | [OVS_DEFINE([HAVE_NF_CONNLABELS_GET_TAKES_BIT])]) | |
| 9f04eabe JR |
613 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
| 614 | [nf_conn_labels], [words]) | |
| 0d330e42 JR |
615 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_ct_nat_ext_add]) |
| 616 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_alloc_null_binding]) | |
| 617 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_seqadj.h], [nf_ct_seq_adjust]) | |
| 057772cf | 618 | |
| e2f3178f | 619 | OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32]) |
| f000c879 | 620 | OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32_max]) |
| 4aa13c0c | 621 | |
| e23775f2 PS |
622 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [get_link_net]) |
| 623 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [name_assign_type]) | |
| 624 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [rtnl_create_link.*src_net], | |
| 625 | [OVS_DEFINE([HAVE_RTNL_CREATE_LINK_SRC_NET])]) | |
| 626 | OVS_GREP_IFELSE([$KSRC/include/net/net_namespace.h], [possible_net_t]) | |
| 627 | ||
| e3438006 BP |
628 | OVS_GREP_IFELSE([$KSRC/include/linux/rcupdate.h], [rcu_read_lock_held], [], |
| 629 | [OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], | |
| cf6cb3a2 | 630 | [rcu_read_lock_held])]) |
| 8fa52250 | 631 | OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], [lockdep_rtnl_is_held]) |
| 997d327d | 632 | |
| 6a33828d BP |
633 | # Check for the proto_data_valid member in struct sk_buff. The [^@] |
| 634 | # is necessary because some versions of this header remove the | |
| 635 | # member but retain the kerneldoc comment that describes it (which | |
| 636 | # starts with @). The brackets must be doubled because of m4 | |
| 637 | # quoting rules. | |
| e3438006 | 638 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [[[^@]]proto_data_valid], |
| 6a33828d | 639 | [OVS_DEFINE([HAVE_PROTO_DATA_VALID])]) |
| ccb75a28 | 640 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_checksum_start_offset]) |
| e23775f2 | 641 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol]) |
| f2252c61 | 642 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol_type]) |
| c1eb2500 | 643 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_inner_transport_offset]) |
| d23239a2 | 644 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [kfree_skb_list]) |
| 60c4904f | 645 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [rxhash]) |
| 5640cbd8 JG |
646 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u16.*rxhash], |
| 647 | [OVS_DEFINE([HAVE_U16_RXHASH])]) | |
| e3438006 | 648 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_dst(], |
| 85444c3f | 649 | [OVS_DEFINE([HAVE_SKB_DST_ACCESSOR_FUNCS])]) |
| 997d327d | 650 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], |
| 8828e5c7 | 651 | [skb_copy_from_linear_data_offset]) |
| b9c15df9 PS |
652 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], |
| 653 | [skb_reset_tail_pointer]) | |
| e3438006 | 654 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_cow_head]) |
| e3438006 | 655 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_warn_if_lro], |
| 4aa13c0c | 656 | [OVS_DEFINE([HAVE_SKB_WARN_LRO])]) |
| e3438006 | 657 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [consume_skb]) |
| 6c4ea27c | 658 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_frag_page]) |
| da4bbeb7 | 659 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_has_frag_list]) |
| 0aa6fda7 | 660 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_fill_page_desc]) |
| d923a695 | 661 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_reset_mac_len]) |
| dc0d542d | 662 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_unclone]) |
| 1edc458d | 663 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_orphan_frags]) |
| c253c2e3 MC |
664 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_get_hash(], |
| 665 | [OVS_DEFINE([HAVE_SKB_GET_HASH])]) | |
| e2f3178f | 666 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash]) |
| 705e9260 PS |
667 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [int.skb_zerocopy(], |
| 668 | [OVS_DEFINE([HAVE_SKB_ZEROCOPY])]) | |
| 75e93287 FL |
669 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u8.*l4_rxhash], |
| 670 | [OVS_DEFINE([HAVE_L4_RXHASH])]) | |
| 5cce04b6 | 671 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_ensure_writable]) |
| 97894370 | 672 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_pop]) |
| a27c454e | 673 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_vlan_pop]) |
| 97894370 | 674 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_push]) |
| c6e13fcc | 675 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash_if_not_l4]) |
| ea3acd7a | 676 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_postpush_rcsum]) |
| 73daf51a | 677 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [lco_csum]) |
| d3c313c1 | 678 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_nfct]) |
| 0ace0a26 | 679 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_put_zero]) |
| 4aa13c0c | 680 | |
| e3438006 | 681 | OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [bool], |
| 4aa13c0c | 682 | [OVS_DEFINE([HAVE_BOOL_TYPE])]) |
| e3438006 | 683 | OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [__wsum], |
| e215ebca | 684 | [OVS_DEFINE([HAVE_CSUM_TYPES])]) |
| 8dbe1f9f PS |
685 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/types.h], [__wsum], |
| 686 | [OVS_DEFINE([HAVE_CSUM_TYPES])]) | |
| 4aa13c0c | 687 | |
| e3438006 BP |
688 | OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_replace4]) |
| 689 | OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_unfold]) | |
| 4aa13c0c | 690 | |
| 0d03e51c | 691 | OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [dst_discard_sk]) |
| 1dba1690 | 692 | OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [__skb_dst_copy]) |
| 0d03e51c | 693 | |
| 114fce23 SG |
694 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_has_listeners]) |
| 695 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [mcgrp_offset]) | |
| 14002a59 | 696 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [parallel_ops]) |
| 6233a1bd TG |
697 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [netlink_has_listeners(net->genl_sock], |
| 698 | [OVS_DEFINE([HAVE_GENL_HAS_LISTENERS_TAKES_NET])]) | |
| c623ba49 | 699 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genlmsg_parse]) |
| 13dd4a97 JS |
700 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_notify.*family], |
| 701 | [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_FAMILY])]) | |
| 0643a78b PS |
702 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/genetlink.h], |
| 703 | [genl_notify], [net], | |
| 704 | [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_NET])]) | |
| 705 | ||
| 13dd4a97 JS |
706 | |
| 707 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/genetlink.h], | |
| 708 | [genl_multicast_group], [id]) | |
| fdce83a3 | 709 | OVS_GREP_IFELSE([$KSRC/include/net/geneve.h], [geneve_hdr]) |
| 13dd4a97 | 710 | |
| cc1d0dea | 711 | OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_cisco_register]) |
| e23775f2 | 712 | OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_handle_offloads]) |
| 8abaa53c | 713 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [IP6_FH_F_SKIP_RH]) |
| e23775f2 | 714 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [ip6_local_out_sk]) |
| 2d3ef70b | 715 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [__ipv6_addr_jhash]) |
| a94ebc39 JS |
716 | OVS_GREP_IFELSE([$KSRC/include/net/ip6_fib.h], [rt6i.*u.dst], |
| 717 | [OVS_DEFINE([HAVE_RT6INFO_DST_UNION])]) | |
| 213e1f54 JS |
718 | OVS_GREP_IFELSE([$KSRC/include/net/ip6_route.h], [ip6_frag.*sock], |
| 719 | [OVS_DEFINE([HAVE_IP_FRAGMENT_TAKES_SOCK])]) | |
| 720 | ||
| 91b37647 | 721 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_64bit]) |
| e3438006 | 722 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_get_be16]) |
| 42d5dd95 TG |
723 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be16]) |
| 724 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be32]) | |
| 725 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be64]) | |
| dd693f9b | 726 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_in_addr]) |
| e3438006 | 727 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_find_nested]) |
| 0fcc086d | 728 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_is_last]) |
| 6dbd98e6 SH |
729 | OVS_GREP_IFELSE([$KSRC/include/linux/netlink.h], [void.*netlink_set_err], |
| 730 | [OVS_DEFINE([HAVE_VOID_NETLINK_SET_ERR])]) | |
| 15702dc9 JB |
731 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netlink.h], |
| 732 | [nla_parse], [netlink_ext_ack], | |
| 733 | [OVS_DEFINE([HAVE_NETLINK_EXT_ACK])]) | |
| 4aa13c0c | 734 | |
| c4e976db JG |
735 | OVS_GREP_IFELSE([$KSRC/include/net/sctp/checksum.h], [sctp_compute_cksum]) |
| 736 | ||
| e3438006 | 737 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [ADD_ALL_VLANS_CMD], |
| 431488e6 | 738 | [OVS_DEFINE([HAVE_VLAN_BUG_WORKAROUND])]) |
| 1f649f1c | 739 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_insert_tag_set_proto]) |
| 17e3889f | 740 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [__vlan_insert_tag]) |
| e23775f2 | 741 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_get_protocol]) |
| 5c3f23fe | 742 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [skb_vlan_tagged]) |
| ca6da1b1 | 743 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [eth_type_vlan]) |
| 431488e6 | 744 | |
| aadd6ae9 JS |
745 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/dst_metadata.h], |
| 746 | [metadata_dst_alloc], [metadata_type]) | |
| 747 | ||
| 09f27436 JG |
748 | OVS_GREP_IFELSE([$KSRC/include/linux/u64_stats_sync.h], [u64_stats_fetch_begin_irq]) |
| 749 | ||
| 3174a818 TG |
750 | OVS_GREP_IFELSE([$KSRC/include/net/vxlan.h], [struct vxlan_metadata], |
| 751 | [OVS_DEFINE([HAVE_VXLAN_METADATA])]) | |
| f6a0c895 | 752 | OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_flow_src_port], |
| 13dd4a97 JS |
753 | [OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [inet_get_local_port_range(net], |
| 754 | [OVS_DEFINE([HAVE_UDP_FLOW_SRC_PORT])])]) | |
| 755 | OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_v4_check]) | |
| e23775f2 | 756 | OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_gro_complete]) |
| 06aeda48 PS |
757 | OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [sk_buff.*udp_tunnel_handle_offloads], |
| 758 | [OVS_DEFINE([HAVE_UDP_TUNNEL_HANDLE_OFFLOAD_RET_SKB])]) | |
| d7e58913 PS |
759 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_sock_cfg], |
| 760 | [gro_receive]) | |
| e23775f2 PS |
761 | |
| 762 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [ignore_df], | |
| f6a0c895 TG |
763 | [OVS_DEFINE([HAVE_IGNORE_DF_RENAME])]) |
| 764 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netdevice.h], [NET_NAME_UNKNOWN], | |
| 765 | [OVS_DEFINE([HAVE_NET_NAME_UNKNOWN])]) | |
| f285d3e7 | 766 | |
| b7ebebcd PS |
767 | OVS_GREP_IFELSE([$KSRC/include/net/sock.h], [sk_no_check_tx]) |
| 768 | OVS_GREP_IFELSE([$KSRC/include/linux/udp.h], [no_check6_tx]) | |
| 21a719d6 FL |
769 | OVS_GREP_IFELSE([$KSRC/include/linux/utsrelease.h], [el6], |
| 770 | [OVS_DEFINE([HAVE_RHEL6_PER_CPU])]) | |
| c970aa4e PS |
771 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/protocol.h], |
| 772 | [udp_add_offload], [net], | |
| 773 | [OVS_DEFINE([HAVE_UDP_ADD_OFFLOAD_TAKES_NET])]) | |
| 802d12b6 GR |
774 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/ipv6/nf_defrag_ipv6.h], |
| 775 | [nf_defrag_ipv6_enable], [net], | |
| 776 | [OVS_DEFINE([HAVE_DEFRAG_ENABLE_TAKES_NET])]) | |
| bef862bc GR |
777 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [family_list], |
| 778 | [OVS_DEFINE([HAVE_GENL_FAMILY_LIST])]) | |
| 7f15e8dd GR |
779 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device], |
| 780 | [needs_free_netdev], | |
| 781 | [OVS_DEFINE([HAVE_NEEDS_FREE_NETDEV])]) | |
| 14365643 GR |
782 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/vxlan.h], [vxlan_dev], [cfg], |
| 783 | [OVS_DEFINE([HAVE_VXLAN_DEV_CFG])]) | |
| ac8e3c6d | 784 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h], |
| 35fc0638 GR |
785 | [nf_conntrack_helper_put], |
| 786 | [OVS_DEFINE(HAVE_NF_CONNTRACK_HELPER_PUT)]) | |
| f90e29c9 | 787 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],[[[[:space:]]]SKB_GSO_UDP[[[:space:]]]], |
| ad283644 | 788 | [OVS_DEFINE([HAVE_SKB_GSO_UDP])]) |
| e0b0150c GR |
789 | OVS_GREP_IFELSE([$KSRC/include/net/dst.h],[DST_NOCACHE], |
| 790 | [OVS_DEFINE([HAVE_DST_NOCACHE])]) | |
| 6b51641a GR |
791 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/rtnetlink.h], [rtnl_link_ops], |
| 792 | [extack], | |
| 793 | [OVS_DEFINE([HAVE_EXT_ACK_IN_RTNL_LINKOPS])]) | |
| a5220693 GR |
794 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops], |
| 795 | [list], | |
| 796 | [OVS_DEFINE([HAVE_LIST_IN_NF_HOOK_OPS])]) | |
| c0802634 EG |
797 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netfilter/nf_conntrack_common.h], |
| 798 | [IP_CT_UNTRACKED]) | |
| 36d3520b GR |
799 | OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h], |
| 800 | [netdev_master_upper_dev_link], [extack], | |
| 801 | [OVS_DEFINE([HAVE_UPPER_DEV_LINK_EXTACK])]) | |
| a61fbfa4 GR |
802 | OVS_GREP_IFELSE([$KSRC/include/linux/compiler_types.h], |
| 803 | [__LINUX_COMPILER_TYPES_H], | |
| 804 | [OVS_DEFINE([HAVE_LINUX_COMPILER_TYPES_H])]) | |
| 21a719d6 | 805 | |
| 22bcc0e7 JG |
806 | if cmp -s datapath/linux/kcompat.h.new \ |
| 807 | datapath/linux/kcompat.h >/dev/null 2>&1; then | |
| 808 | rm datapath/linux/kcompat.h.new | |
| 064af421 | 809 | else |
| 22bcc0e7 | 810 | mv datapath/linux/kcompat.h.new datapath/linux/kcompat.h |
| 064af421 BP |
811 | fi |
| 812 | ]) | |
| 813 | ||
| 814 | dnl Checks for net/if_packet.h. | |
| 815 | AC_DEFUN([OVS_CHECK_IF_PACKET], | |
| 816 | [AC_CHECK_HEADER([net/if_packet.h], | |
| 817 | [HAVE_IF_PACKET=yes], | |
| 818 | [HAVE_IF_PACKET=no]) | |
| 819 | AM_CONDITIONAL([HAVE_IF_PACKET], [test "$HAVE_IF_PACKET" = yes]) | |
| 820 | if test "$HAVE_IF_PACKET" = yes; then | |
| 821 | AC_DEFINE([HAVE_IF_PACKET], [1], | |
| 822 | [Define to 1 if net/if_packet.h is available.]) | |
| 823 | fi]) | |
| 824 | ||
| f6eb6b20 | 825 | dnl Checks for net/if_dl.h. |
| d30e714c | 826 | dnl |
| d23fa2ed YT |
827 | dnl (We use this as a proxy for checking whether we're building on FreeBSD |
| 828 | dnl or NetBSD.) | |
| 9360d9b7 EM |
829 | AC_DEFUN([OVS_CHECK_IF_DL], |
| 830 | [AC_CHECK_HEADER([net/if_dl.h], | |
| 831 | [HAVE_IF_DL=yes], | |
| 832 | [HAVE_IF_DL=no]) | |
| 833 | AM_CONDITIONAL([HAVE_IF_DL], [test "$HAVE_IF_DL" = yes]) | |
| 834 | if test "$HAVE_IF_DL" = yes; then | |
| 835 | AC_DEFINE([HAVE_IF_DL], [1], | |
| 836 | [Define to 1 if net/if_dl.h is available.]) | |
| d30e714c | 837 | |
| d23fa2ed | 838 | # On these platforms we use libpcap to access network devices. |
| d30e714c | 839 | AC_SEARCH_LIBS([pcap_open_live], [pcap]) |
| 9360d9b7 EM |
840 | fi]) |
| 841 | ||
| e50097d2 BP |
842 | dnl Checks for buggy strtok_r. |
| 843 | dnl | |
| 844 | dnl Some versions of glibc 2.7 has a bug in strtok_r when compiling | |
| 845 | dnl with optimization that can cause segfaults: | |
| 846 | dnl | |
| 847 | dnl http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614. | |
| 848 | AC_DEFUN([OVS_CHECK_STRTOK_R], | |
| 849 | [AC_CACHE_CHECK( | |
| 850 | [whether strtok_r macro segfaults on some inputs], | |
| 851 | [ovs_cv_strtok_r_bug], | |
| 852 | [AC_RUN_IFELSE( | |
| 853 | [AC_LANG_PROGRAM([#include <stdio.h> | |
| 854 | #include <string.h> | |
| 855 | ], | |
| 416e7132 BP |
856 | [[#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 |
| 857 | /* Assume bug is present, because relatively minor | |
| 858 | changes in compiler settings (e.g. optimization | |
| 859 | level) can make it crop up. */ | |
| 860 | return 1; | |
| 861 | #else | |
| 862 | char string[] = ":::"; | |
| e50097d2 BP |
863 | char *save_ptr = (char *) 0xc0ffee; |
| 864 | char *token1, *token2; | |
| 865 | token1 = strtok_r(string, ":", &save_ptr); | |
| 866 | token2 = strtok_r(NULL, ":", &save_ptr); | |
| 5819a7cd | 867 | freopen ("/dev/null", "w", stdout); |
| e50097d2 BP |
868 | printf ("%s %s\n", token1, token2); |
| 869 | return 0; | |
| 416e7132 | 870 | #endif |
| e50097d2 BP |
871 | ]])], |
| 872 | [ovs_cv_strtok_r_bug=no], | |
| 873 | [ovs_cv_strtok_r_bug=yes], | |
| 874 | [ovs_cv_strtok_r_bug=yes])]) | |
| 875 | if test $ovs_cv_strtok_r_bug = yes; then | |
| 876 | AC_DEFINE([HAVE_STRTOK_R_BUG], [1], | |
| 877 | [Define if strtok_r macro segfaults on some inputs]) | |
| 878 | fi | |
| 879 | ]) | |
| 880 | ||
| 064af421 BP |
881 | dnl ---------------------------------------------------------------------- |
| 882 | dnl These macros are from GNU PSPP, with the following original license: | |
| 883 | dnl Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc. | |
| 884 | dnl This file is free software; the Free Software Foundation | |
| 885 | dnl gives unlimited permission to copy and/or distribute it, | |
| 886 | dnl with or without modifications, as long as this notice is preserved. | |
| 887 | ||
| 50194820 | 888 | AC_DEFUN([_OVS_CHECK_CC_OPTION], [dnl |
| 726af752 | 889 | m4_define([ovs_cv_name], [ovs_cv_[]m4_translit([$1], [-= ], [__])])dnl |
| 064af421 BP |
890 | AC_CACHE_CHECK([whether $CC accepts $1], [ovs_cv_name], |
| 891 | [ovs_save_CFLAGS="$CFLAGS" | |
| 50194820 BP |
892 | dnl Include -Werror in the compiler options, because without -Werror |
| 893 | dnl clang's GCC-compatible compiler driver does not return a failure | |
| 894 | dnl exit status even though it complains about options it does not | |
| 895 | dnl understand. | |
| c2deac54 YT |
896 | dnl |
| 897 | dnl Also, check stderr as gcc exits with status 0 for options | |
| 898 | dnl rejected at getopt level. | |
| 899 | dnl % touch /tmp/a.c | |
| 900 | dnl % gcc -g -c -Werror -Qunused-arguments /tmp/a.c; echo $? | |
| 901 | dnl gcc: unrecognized option '-Qunused-arguments' | |
| 902 | dnl 0 | |
| 903 | dnl % | |
| 50194820 | 904 | CFLAGS="$CFLAGS $WERROR $1" |
| 37f4615e BP |
905 | AC_COMPILE_IFELSE( |
| 906 | [AC_LANG_SOURCE([int x;])], | |
| 907 | [if test -s conftest.err && grep "unrecognized option" conftest.err | |
| 908 | then | |
| 909 | ovs_cv_name[]=no | |
| 910 | else | |
| 911 | ovs_cv_name[]=yes | |
| 912 | fi], | |
| 913 | [ovs_cv_name[]=no]) | |
| 064af421 BP |
914 | CFLAGS="$ovs_save_CFLAGS"]) |
| 915 | if test $ovs_cv_name = yes; then | |
| 83f6c050 | 916 | m4_if([$2], [], [:], [$2]) |
| 064af421 BP |
917 | else |
| 918 | m4_if([$3], [], [:], [$3]) | |
| 919 | fi | |
| 920 | ]) | |
| 921 | ||
| 50194820 BP |
922 | dnl OVS_CHECK_WERROR |
| 923 | dnl | |
| 924 | dnl Check whether the C compiler accepts -Werror. | |
| 925 | dnl Sets $WERROR to "-Werror", if so, and otherwise to the empty string. | |
| 926 | AC_DEFUN([OVS_CHECK_WERROR], | |
| 927 | [WERROR= | |
| 928 | _OVS_CHECK_CC_OPTION([-Werror], [WERROR=-Werror])]) | |
| 929 | ||
| 930 | dnl OVS_CHECK_CC_OPTION([OPTION], [ACTION-IF-ACCEPTED], [ACTION-IF-REJECTED]) | |
| 931 | dnl Check whether the given C compiler OPTION is accepted. | |
| 932 | dnl If so, execute ACTION-IF-ACCEPTED, otherwise ACTION-IF-REJECTED. | |
| 933 | AC_DEFUN([OVS_CHECK_CC_OPTION], | |
| 934 | [AC_REQUIRE([OVS_CHECK_WERROR]) | |
| 935 | _OVS_CHECK_CC_OPTION([$1], [$2], [$3])]) | |
| 936 | ||
| 064af421 BP |
937 | dnl OVS_ENABLE_OPTION([OPTION]) |
| 938 | dnl Check whether the given C compiler OPTION is accepted. | |
| d161c099 | 939 | dnl If so, add it to WARNING_FLAGS. |
| 064af421 BP |
940 | dnl Example: OVS_ENABLE_OPTION([-Wdeclaration-after-statement]) |
| 941 | AC_DEFUN([OVS_ENABLE_OPTION], | |
| d161c099 BP |
942 | [OVS_CHECK_CC_OPTION([$1], [WARNING_FLAGS="$WARNING_FLAGS $1"]) |
| 943 | AC_SUBST([WARNING_FLAGS])]) | |
| c72e245a BP |
944 | |
| 945 | dnl OVS_CONDITIONAL_CC_OPTION([OPTION], [CONDITIONAL]) | |
| 946 | dnl Check whether the given C compiler OPTION is accepted. | |
| 947 | dnl If so, enable the given Automake CONDITIONAL. | |
| 948 | ||
| 949 | dnl Example: OVS_CONDITIONAL_CC_OPTION([-Wno-unused], [HAVE_WNO_UNUSED]) | |
| 950 | AC_DEFUN([OVS_CONDITIONAL_CC_OPTION], | |
| 951 | [OVS_CHECK_CC_OPTION( | |
| 952 | [$1], [ovs_have_cc_option=yes], [ovs_have_cc_option=no]) | |
| 953 | AM_CONDITIONAL([$2], [test $ovs_have_cc_option = yes])]) | |
| 064af421 | 954 | dnl ---------------------------------------------------------------------- |
| ed2d4f6a BP |
955 | |
| 956 | dnl Check for too-old XenServer. | |
| 957 | AC_DEFUN([OVS_CHECK_XENSERVER_VERSION], | |
| 958 | [AC_CACHE_CHECK([XenServer release], [ovs_cv_xsversion], | |
| 959 | [if test -e /etc/redhat-release; then | |
| 960 | ovs_cv_xsversion=`sed -n 's/^XenServer DDK release \([[^-]]*\)-.*/\1/p' /etc/redhat-release` | |
| 961 | fi | |
| 962 | if test -z "$ovs_cv_xsversion"; then | |
| 963 | ovs_cv_xsversion=none | |
| 964 | fi]) | |
| 965 | case $ovs_cv_xsversion in | |
| 966 | none) | |
| 967 | ;; | |
| 968 | ||
| 969 | [[1-9]][[0-9]]* | dnl XenServer 10 or later | |
| 970 | [[6-9]]* | dnl XenServer 6 or later | |
| 971 | 5.[[7-9]]* | dnl XenServer 5.7 or later | |
| 972 | 5.6.[[1-9]][[0-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.1000 or later | |
| 973 | 5.6.[[2-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.200 or later | |
| 974 | 5.6.1[[0-9]][[0-9]]) dnl Xenserver 5.6.100 or later | |
| 975 | ;; | |
| 976 | ||
| 977 | *) | |
| 978 | AC_MSG_ERROR([This appears to be XenServer $ovs_cv_xsversion, but only XenServer 5.6.100 or later is supported. (If you are really using a supported version of XenServer, you may override this error message by specifying 'ovs_cv_xsversion=5.6.100' on the "configure" command line.)]) | |
| 979 | ;; | |
| 980 | esac]) | |
| 29d935d6 | 981 | |
| 643c0c34 BP |
982 | dnl OVS_CHECK_SPARSE_TARGET |
| 983 | dnl | |
| 984 | dnl The "cgcc" script from "sparse" isn't very good at detecting the | |
| 985 | dnl target for which the code is being built. This helps it out. | |
| 986 | AC_DEFUN([OVS_CHECK_SPARSE_TARGET], | |
| 987 | [AC_CACHE_CHECK( | |
| 988 | [target hint for cgcc], | |
| 989 | [ac_cv_sparse_target], | |
| 990 | [AS_CASE([`$CC -dumpmachine 2>/dev/null`], | |
| 991 | [i?86-* | athlon-*], [ac_cv_sparse_target=x86], | |
| 992 | [x86_64-*], [ac_cv_sparse_target=x86_64], | |
| 993 | [ac_cv_sparse_target=other])]) | |
| 994 | AS_CASE([$ac_cv_sparse_target], | |
| 995 | [x86], [SPARSEFLAGS= CGCCFLAGS=-target=i86], | |
| 996 | [x86_64], [SPARSEFLAGS=-m64 CGCCFLAGS=-target=x86_64], | |
| 997 | [SPARSEFLAGS= CGCCFLAGS=]) | |
| 998 | AC_SUBST([SPARSEFLAGS]) | |
| 999 | AC_SUBST([CGCCFLAGS])]) | |
| 1000 | ||
| 32e96ab7 AZ |
1001 | dnl OVS_SPARSE_EXTRA_INCLUDES |
| 1002 | dnl | |
| 1003 | dnl The cgcc script from "sparse" does not search gcc's default | |
| 1004 | dnl search path. Get the default search path from GCC and pass | |
| 1005 | dnl them to sparse. | |
| 1006 | AC_DEFUN([OVS_SPARSE_EXTRA_INCLUDES], | |
| 1007 | AC_SUBST([SPARSE_EXTRA_INCLUDES], | |
| 1008 | [`$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 ' ' `] )) | |
| 1009 | ||
| 29d935d6 BP |
1010 | dnl OVS_ENABLE_SPARSE |
| 1011 | AC_DEFUN([OVS_ENABLE_SPARSE], | |
| 643c0c34 | 1012 | [AC_REQUIRE([OVS_CHECK_SPARSE_TARGET]) |
| 32e96ab7 | 1013 | AC_REQUIRE([OVS_SPARSE_EXTRA_INCLUDES]) |
| 372d58a4 BP |
1014 | : ${SPARSE=sparse} |
| 1015 | AC_SUBST([SPARSE]) | |
| 1016 | AC_CONFIG_COMMANDS_PRE( | |
| d4042a70 BP |
1017 | [CC='$(if $(C:0=),env REAL_CC="'"$CC"'" CHECK="$(SPARSE) $(SPARSE_WERROR) -I $(top_srcdir)/include/sparse $(SPARSEFLAGS) $(SPARSE_EXTRA_INCLUDES) " cgcc $(CGCCFLAGS),'"$CC"')']) |
| 1018 | ||
| 1019 | AC_ARG_ENABLE( | |
| 1020 | [sparse], | |
| 1021 | [AC_HELP_STRING([--enable-sparse], [Run "sparse" by default])], | |
| 1022 | [], [enable_sparse=no]) | |
| 1023 | AM_CONDITIONAL([ENABLE_SPARSE_BY_DEFAULT], [test $enable_sparse = yes])]) | |
| 8a8cd0ac | 1024 | |
| 0eaaacac FL |
1025 | dnl OVS_CTAGS_IDENTIFIERS |
| 1026 | dnl | |
| 1027 | dnl ctags ignores symbols with extras identifiers. This builds a list of | |
| 1028 | dnl specially handled identifiers to be ignored. | |
| 1029 | AC_DEFUN([OVS_CTAGS_IDENTIFIERS], | |
| 1030 | AC_SUBST([OVS_CTAGS_IDENTIFIERS_LIST], | |
| c9990318 | 1031 | [`printf %s '-I "'; sed -n 's/^#define \(OVS_[A-Z_]\+\)(\.\.\.)$/\1+/p' ${srcdir}/include/openvswitch/compiler.h | tr \\\n ' ' ; printf '"'`] )) |
| 0eaaacac | 1032 | |
| 8a8cd0ac BP |
1033 | dnl OVS_PTHREAD_SET_NAME |
| 1034 | dnl | |
| 1035 | dnl This checks for three known variants of pthreads functions for setting | |
| 1036 | dnl the name of the current thread: | |
| 1037 | dnl | |
| 1038 | dnl glibc: int pthread_setname_np(pthread_t, const char *name); | |
| 1039 | dnl NetBSD: int pthread_setname_np(pthread_t, const char *format, void *arg); | |
| 1040 | dnl FreeBSD: int pthread_set_name_np(pthread_t, const char *name); | |
| 1041 | dnl | |
| 1042 | dnl For glibc and FreeBSD, the arguments are just a thread and its name. For | |
| 1043 | dnl NetBSD, 'format' is a printf() format string and 'arg' is an argument to | |
| 1044 | dnl provide to it. | |
| 1045 | dnl | |
| 1046 | dnl This macro defines: | |
| 1047 | dnl | |
| 1048 | dnl glibc: HAVE_GLIBC_PTHREAD_SETNAME_NP | |
| 1049 | dnl NetBSD: HAVE_NETBSD_PTHREAD_SETNAME_NP | |
| 1050 | dnl FreeBSD: HAVE_PTHREAD_SET_NAME_NP | |
| 1051 | AC_DEFUN([OVS_CHECK_PTHREAD_SET_NAME], | |
| 1052 | [AC_CHECK_FUNCS([pthread_set_name_np]) | |
| 1053 | if test $ac_cv_func_pthread_set_name_np != yes; then | |
| 1054 | AC_CACHE_CHECK( | |
| 1055 | [for pthread_setname_np() variant], | |
| 1056 | [ovs_cv_pthread_setname_np], | |
| 1057 | [AC_LINK_IFELSE( | |
| a0903134 | 1058 | [AC_LANG_PROGRAM([#include <pthread.h> |
| 8a8cd0ac | 1059 | ], [pthread_setname_np(pthread_self(), "name");])], |
| a0903134 | 1060 | [ovs_cv_pthread_setname_np=glibc], |
| 8a8cd0ac | 1061 | [AC_LINK_IFELSE( |
| a0903134 | 1062 | [AC_LANG_PROGRAM([#include <pthread.h> |
| 8a8cd0ac BP |
1063 | ], [pthread_setname_np(pthread_self(), "%s", "name");])], |
| 1064 | [ovs_cv_pthread_setname_np=netbsd], | |
| a0903134 | 1065 | [ovs_cv_pthread_setname_np=none])])]) |
| 8a8cd0ac BP |
1066 | case $ovs_cv_pthread_setname_np in # ( |
| 1067 | glibc) | |
| a0903134 YT |
1068 | AC_DEFINE( |
| 1069 | [HAVE_GLIBC_PTHREAD_SETNAME_NP], [1], | |
| 1070 | [Define to 1 if pthread_setname_np() is available and takes 2 parameters (like glibc).]) | |
| 1071 | ;; # ( | |
| 8a8cd0ac | 1072 | netbsd) |
| a0903134 YT |
1073 | AC_DEFINE( |
| 1074 | [HAVE_NETBSD_PTHREAD_SETNAME_NP], [1], | |
| 1075 | [Define to 1 if pthread_setname_np() is available and takes 3 parameters (like NetBSD).]) | |
| 1076 | ;; | |
| 8a8cd0ac BP |
1077 | esac |
| 1078 | fi]) | |
| 5020f5f0 BP |
1079 | |
| 1080 | dnl OVS_CHECK_LINUX_HOST. | |
| 1081 | dnl | |
| 1082 | dnl Checks whether we're building for a Linux host, based on the presence of | |
| 1083 | dnl the __linux__ preprocessor symbol, and sets up an Automake conditional | |
| 1084 | dnl LINUX based on the result. | |
| 1085 | AC_DEFUN([OVS_CHECK_LINUX_HOST], | |
| 1086 | [AC_CACHE_CHECK( | |
| 1087 | [whether __linux__ is defined], | |
| 1088 | [ovs_cv_linux], | |
| 1089 | [AC_COMPILE_IFELSE( | |
| 1090 | [AC_LANG_PROGRAM([enum { LINUX = __linux__};], [])], | |
| 1091 | [ovs_cv_linux=true], | |
| 1092 | [ovs_cv_linux=false])]) | |
| 1093 | AM_CONDITIONAL([LINUX], [$ovs_cv_linux])]) |