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" |
| a64e37a1 BP |
26 | fi])]) |
| 27 | ||
| e3438006 | 28 | dnl OVS_CHECK_LINUX |
| 064af421 | 29 | dnl |
| 997d327d | 30 | dnl Configure linux kernel source tree |
| e3438006 | 31 | AC_DEFUN([OVS_CHECK_LINUX], [ |
| 8a2d6596 BP |
32 | AC_ARG_WITH([linux], |
| 33 | [AC_HELP_STRING([--with-linux=/path/to/linux], | |
| 34 | [Specify the Linux kernel build directory])]) | |
| 35 | AC_ARG_WITH([linux-source], | |
| 36 | [AC_HELP_STRING([--with-linux-source=/path/to/linux-source], | |
| 37 | [Specify the Linux kernel source directory | |
| a0903134 YT |
38 | (usually figured out automatically from build |
| 39 | directory)])]) | |
| 8a2d6596 BP |
40 | |
| 41 | # Deprecated equivalents to --with-linux, --with-linux-source. | |
| 42 | AC_ARG_WITH([l26]) | |
| 43 | AC_ARG_WITH([l26-source]) | |
| 44 | ||
| 45 | if test X"$with_linux" != X; then | |
| 46 | KBUILD=$with_linux | |
| 47 | elif test X"$with_l26" != X; then | |
| 48 | KBUILD=$with_l26 | |
| 49 | AC_MSG_WARN([--with-l26 is deprecated, please use --with-linux instead]) | |
| 50 | else | |
| 51 | KBUILD= | |
| 52 | fi | |
| 53 | ||
| 54 | if test X"$KBUILD" != X; then | |
| 55 | if test X"$with_linux_source" != X; then | |
| 56 | KSRC=$with_linux_source | |
| 57 | elif test X"$with_l26_source" != X; then | |
| 58 | KSRC=$with_l26_source | |
| 59 | AC_MSG_WARN([--with-l26-source is deprecated, please use --with-linux-source instead]) | |
| 0a89c170 BP |
60 | else |
| 61 | KSRC= | |
| 8a2d6596 BP |
62 | fi |
| 63 | elif test X"$with_linux_source" != X || test X"$with_l26_source" != X; then | |
| 64 | AC_MSG_ERROR([Linux source directory may not be specified without Linux build directory]) | |
| 65 | fi | |
| 66 | ||
| e3438006 BP |
67 | if test -n "$KBUILD"; then |
| 68 | KBUILD=`eval echo "$KBUILD"` | |
| 69 | case $KBUILD in | |
| 0b6d72fc | 70 | /*) ;; |
| e3438006 | 71 | *) KBUILD=`pwd`/$KBUILD ;; |
| 0b6d72fc | 72 | esac |
| 064af421 | 73 | |
| 7c9e113b BP |
74 | # The build directory is what the user provided. |
| 75 | # Make sure that it exists. | |
| 8a2d6596 | 76 | AC_MSG_CHECKING([for Linux build directory]) |
| e3438006 | 77 | if test -d "$KBUILD"; then |
| a0903134 YT |
78 | AC_MSG_RESULT([$KBUILD]) |
| 79 | AC_SUBST(KBUILD) | |
| 064af421 | 80 | else |
| a0903134 YT |
81 | AC_MSG_RESULT([no]) |
| 82 | AC_ERROR([source dir $KBUILD doesn't exist]) | |
| 064af421 BP |
83 | fi |
| 84 | ||
| 7c9e113b | 85 | # Debian breaks kernel headers into "source" header and "build" headers. |
| e3438006 | 86 | # We want the source headers, but $KBUILD gives us the "build" headers. |
| 7c9e113b | 87 | # Use heuristics to find the source headers. |
| 8a2d6596 | 88 | AC_MSG_CHECKING([for Linux source directory]) |
| e3438006 BP |
89 | if test -n "$KSRC"; then |
| 90 | KSRC=`eval echo "$KSRC"` | |
| 91 | case $KSRC in | |
| f5fb5de6 | 92 | /*) ;; |
| e3438006 | 93 | *) KSRC=`pwd`/$KSRC ;; |
| b57f675c | 94 | esac |
| e3438006 | 95 | if test ! -e $KSRC/include/linux/kernel.h; then |
| 53319f95 | 96 | AC_MSG_ERROR([$KSRC is not a kernel source directory]) |
| f5fb5de6 BP |
97 | fi |
| 98 | else | |
| e3438006 BP |
99 | KSRC=$KBUILD |
| 100 | if test ! -e $KSRC/include/linux/kernel.h; then | |
| fe0731b1 BP |
101 | # Debian kernel build Makefiles tend to include a line of the form: |
| 102 | # MAKEARGS := -C /usr/src/linux-headers-3.2.0-1-common O=/usr/src/linux-headers-3.2.0-1-486 | |
| 103 | # First try to extract the source directory from this line. | |
| 104 | KSRC=`sed -n 's/.*-C \([[^ ]]*\).*/\1/p' "$KBUILD"/Makefile` | |
| 105 | if test ! -e "$KSRC"/include/linux/kernel.h; then | |
| 106 | # Didn't work. Fall back to name-based heuristics that used to work. | |
| 107 | case `echo "$KBUILD" | sed 's,/*$,,'` in # ( | |
| 108 | */build) | |
| 109 | KSRC=`echo "$KBUILD" | sed 's,/build/*$,/source,'` | |
| 110 | ;; # ( | |
| 111 | *) | |
| 112 | KSRC=`(cd $KBUILD && pwd -P) | sed 's,-[[^-]]*$,-common,'` | |
| 113 | ;; | |
| 114 | esac | |
| 115 | fi | |
| f5fb5de6 | 116 | fi |
| fe0731b1 | 117 | if test ! -e "$KSRC"/include/linux/kernel.h; then |
| 8a2d6596 | 118 | AC_MSG_ERROR([cannot find source directory (please use --with-linux-source)]) |
| 7c9e113b BP |
119 | fi |
| 120 | fi | |
| e3438006 | 121 | AC_MSG_RESULT([$KSRC]) |
| 7c9e113b BP |
122 | |
| 123 | AC_MSG_CHECKING([for kernel version]) | |
| 71fe9970 | 124 | version=`sed -n 's/^VERSION = //p' "$KSRC/Makefile"` |
| e3438006 BP |
125 | patchlevel=`sed -n 's/^PATCHLEVEL = //p' "$KSRC/Makefile"` |
| 126 | sublevel=`sed -n 's/^SUBLEVEL = //p' "$KSRC/Makefile"` | |
| 71fe9970 | 127 | if test X"$version" = X || test X"$patchlevel" = X; then |
| 7c9e113b | 128 | AC_ERROR([cannot determine kernel version]) |
| 71fe9970 BP |
129 | elif test X"$sublevel" = X; then |
| 130 | kversion=$version.$patchlevel | |
| 131 | else | |
| 132 | kversion=$version.$patchlevel.$sublevel | |
| 7c9e113b | 133 | fi |
| 71fe9970 BP |
134 | AC_MSG_RESULT([$kversion]) |
| 135 | ||
| 3afcde43 | 136 | if test "$version" -ge 4; then |
| 2c0e107e | 137 | if test "$version" = 4 && test "$patchlevel" -le 11; then |
| 3afcde43 | 138 | : # Linux 4.x |
| d76aabea | 139 | else |
| 2c0e107e | 140 | AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 4.11.x is not supported (please refer to the FAQ for advice)]) |
| d76aabea | 141 | fi |
| 8063e095 | 142 | elif test "$version" = 3 && test "$patchlevel" -ge 10; then |
| 3afcde43 | 143 | : # Linux 3.x |
| 71fe9970 | 144 | else |
| 8063e095 | 145 | AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version 3.10 or later is required]) |
| 064af421 | 146 | fi |
| 2520f452 IY |
147 | if (test ! -e "$KBUILD"/include/linux/version.h && \ |
| 148 | test ! -e "$KBUILD"/include/generated/uapi/linux/version.h)|| \ | |
| e3438006 BP |
149 | (test ! -e "$KBUILD"/include/linux/autoconf.h && \ |
| 150 | test ! -e "$KBUILD"/include/generated/autoconf.h); then | |
| a0903134 | 151 | AC_MSG_ERROR([Linux kernel source in $KBUILD is not configured]) |
| 064af421 | 152 | fi |
| e3438006 | 153 | OVS_CHECK_LINUX_COMPAT |
| 064af421 | 154 | fi |
| e3438006 | 155 | AM_CONDITIONAL(LINUX_ENABLED, test -n "$KBUILD") |
| 064af421 BP |
156 | ]) |
| 157 | ||
| 8a9562d2 PS |
158 | dnl OVS_CHECK_DPDK |
| 159 | dnl | |
| 160 | dnl Configure DPDK source tree | |
| 161 | AC_DEFUN([OVS_CHECK_DPDK], [ | |
| 162 | AC_ARG_WITH([dpdk], | |
| 163 | [AC_HELP_STRING([--with-dpdk=/path/to/dpdk], | |
| 4c16ee48 MV |
164 | [Specify the DPDK build directory])], |
| 165 | [have_dpdk=true]) | |
| 8a9562d2 | 166 | |
| 40b5ea86 | 167 | AC_MSG_CHECKING([whether dpdk datapath is enabled]) |
| 4c16ee48 | 168 | if test "$have_dpdk" != true || test "$with_dpdk" = no; then |
| 40b5ea86 BB |
169 | AC_MSG_RESULT([no]) |
| 170 | DPDKLIB_FOUND=false | |
| 171 | else | |
| 172 | AC_MSG_RESULT([yes]) | |
| 173 | case "$with_dpdk" in | |
| 174 | yes) | |
| 175 | DPDK_AUTO_DISCOVER="true" | |
| 176 | DPDK_INCLUDE="/usr/local/include/dpdk -I/usr/include/dpdk" | |
| 177 | ;; | |
| 178 | *) | |
| 179 | DPDK_AUTO_DISCOVER="false" | |
| 180 | DPDK_INCLUDE="$with_dpdk/include" | |
| 181 | # If 'with_dpdk' is passed install directory, point to headers | |
| 182 | # installed in $DESTDIR/$prefix/include/dpdk | |
| 183 | AC_CHECK_FILE([$DPDK_INCLUDE/rte_config.h], [], | |
| 184 | [AC_CHECK_FILE([$DPDK_INCLUDE/dpdk/rte_config.h], | |
| 185 | [DPDK_INCLUDE=$DPDK_INCLUDE/dpdk], [])]) | |
| 186 | DPDK_LIB_DIR="$with_dpdk/lib" | |
| 187 | ;; | |
| 188 | esac | |
| 8a9562d2 | 189 | |
| 18f777b2 | 190 | DPDK_LIB="-ldpdk" |
| 10d01ad2 | 191 | DPDK_EXTRA_LIB="" |
| 8a9562d2 | 192 | |
| 95626395 TG |
193 | ovs_save_CFLAGS="$CFLAGS" |
| 194 | ovs_save_LDFLAGS="$LDFLAGS" | |
| c1223b11 | 195 | CFLAGS="$CFLAGS -I$DPDK_INCLUDE" |
| 40b5ea86 BB |
196 | if test "$DPDK_AUTO_DISCOVER" = "false"; then |
| 197 | LDFLAGS="$LDFLAGS -L${DPDK_LIB_DIR}" | |
| 198 | fi | |
| 199 | ||
| 435aaddd CL |
200 | AC_COMPILE_IFELSE([ |
| 201 | AC_LANG_PROGRAM( | |
| 202 | [ | |
| 203 | #include <rte_config.h> | |
| 204 | #if RTE_LIBRTE_VHOST_NUMA | |
| 205 | #error | |
| 206 | #endif | |
| 207 | ], []) | |
| 208 | ], [], | |
| 209 | [AC_SEARCH_LIBS([get_mempolicy],[numa],[],[AC_MSG_ERROR([unable to find libnuma, install the dependency package])]) | |
| 5b9bf9e0 CL |
210 | DPDK_EXTRA_LIB="-lnuma" |
| 211 | AC_DEFINE([VHOST_NUMA], [1], [NUMA Aware vHost support detected in DPDK.])]) | |
| 16dfb8fa | 212 | |
| 4b88d678 CL |
213 | AC_COMPILE_IFELSE([ |
| 214 | AC_LANG_PROGRAM( | |
| 215 | [ | |
| 216 | #include <rte_config.h> | |
| 217 | #if RTE_LIBRTE_PMD_PCAP | |
| 218 | #error | |
| 219 | #endif | |
| 220 | ], []) | |
| 221 | ], [], | |
| 222 | [AC_SEARCH_LIBS([pcap_dump],[pcap],[],[AC_MSG_ERROR([unable to find libpcap, install the dependency package])]) | |
| 223 | DPDK_EXTRA_LIB="-lpcap" | |
| 224 | AC_COMPILE_IFELSE([ | |
| 225 | AC_LANG_PROGRAM( | |
| 226 | [ | |
| 227 | #include <rte_config.h> | |
| 228 | #if RTE_LIBRTE_PDUMP | |
| 229 | #error | |
| 230 | #endif | |
| 231 | ], []) | |
| 232 | ], [], | |
| 233 | [AC_DEFINE([DPDK_PDUMP], [1], [DPDK pdump enabled in OVS.])]) | |
| 234 | ]) | |
| 235 | ||
| c1223b11 DDP |
236 | # On some systems we have to add -ldl to link with dpdk |
| 237 | # | |
| 238 | # This code, at first, tries to link without -ldl (""), | |
| 239 | # then adds it and tries again. | |
| 240 | # Before each attempt the search cache must be unset, | |
| 241 | # otherwise autoconf will stick with the old result | |
| 242 | ||
| 40b5ea86 | 243 | DPDKLIB_FOUND=false |
| c1223b11 DDP |
244 | save_LIBS=$LIBS |
| 245 | for extras in "" "-ldl"; do | |
| 435aaddd | 246 | LIBS="$DPDK_LIB $extras $save_LIBS $DPDK_EXTRA_LIB" |
| c1223b11 DDP |
247 | AC_LINK_IFELSE( |
| 248 | [AC_LANG_PROGRAM([#include <rte_config.h> | |
| 249 | #include <rte_eal.h>], | |
| 250 | [int rte_argc; char ** rte_argv; | |
| 251 | rte_eal_init(rte_argc, rte_argv);])], | |
| 40b5ea86 BB |
252 | [DPDKLIB_FOUND=true]) |
| 253 | if $DPDKLIB_FOUND; then | |
| c1223b11 DDP |
254 | break |
| 255 | fi | |
| 256 | done | |
| 40b5ea86 BB |
257 | |
| 258 | # If linking unsuccessful | |
| 259 | if test "$DPDKLIB_FOUND" = "false" ; then | |
| 260 | if $DPDK_AUTO_DISCOVER; then | |
| 261 | 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]) | |
| 262 | else | |
| 263 | AC_MSG_ERROR([Could not find DPDK libraries in $DPDK_LIB_DIR]) | |
| 264 | fi | |
| c1223b11 | 265 | fi |
| 95626395 TG |
266 | CFLAGS="$ovs_save_CFLAGS" |
| 267 | LDFLAGS="$ovs_save_LDFLAGS" | |
| 40b5ea86 BB |
268 | if test "$DPDK_AUTO_DISCOVER" = "false"; then |
| 269 | OVS_LDFLAGS="$OVS_LDFLAGS -L$DPDK_LIB_DIR" | |
| 270 | fi | |
| ab2a3154 IM |
271 | OVS_CFLAGS="$OVS_CFLAGS -I$DPDK_INCLUDE" |
| 272 | OVS_ENABLE_OPTION([-mssse3]) | |
| 8a9562d2 | 273 | |
| 3c94676c | 274 | # DPDK pmd drivers are not linked unless --whole-archive is used. |
| d7310583 DDP |
275 | # |
| 276 | # This happens because the rest of the DPDK code doesn't use any symbol in | |
| 277 | # the pmd driver objects, and the drivers register themselves using an | |
| 278 | # __attribute__((constructor)) function. | |
| 279 | # | |
| 280 | # These options are specified inside a single -Wl directive to prevent | |
| 281 | # autotools from reordering them. | |
| 3c94676c | 282 | DPDK_vswitchd_LDFLAGS=-Wl,--whole-archive,$DPDK_LIB,--no-whole-archive |
| 9475dfeb | 283 | AC_SUBST([DPDK_vswitchd_LDFLAGS]) |
| 8a9562d2 | 284 | AC_DEFINE([DPDK_NETDEV], [1], [System uses the DPDK module.]) |
| 8a9562d2 PS |
285 | fi |
| 286 | ||
| 40b5ea86 | 287 | AM_CONDITIONAL([DPDK_NETDEV], test "$DPDKLIB_FOUND" = true) |
| 8a9562d2 PS |
288 | ]) |
| 289 | ||
| 8828e5c7 | 290 | dnl OVS_GREP_IFELSE(FILE, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
| 064af421 BP |
291 | dnl |
| 292 | dnl Greps FILE for REGEX. If it matches, runs IF-MATCH, otherwise IF-NO-MATCH. | |
| 8828e5c7 BP |
293 | dnl If IF-MATCH is empty then it defines to OVS_DEFINE(HAVE_<REGEX>), with |
| 294 | dnl <REGEX> translated to uppercase. | |
| 064af421 BP |
295 | AC_DEFUN([OVS_GREP_IFELSE], [ |
| 296 | AC_MSG_CHECKING([whether $2 matches in $1]) | |
| 7507ec48 JG |
297 | if test -f $1; then |
| 298 | grep '$2' $1 >/dev/null 2>&1 | |
| 299 | status=$? | |
| 300 | case $status in | |
| 997d327d | 301 | 0) |
| 7507ec48 | 302 | AC_MSG_RESULT([yes]) |
| 8828e5c7 | 303 | m4_if([$3], [], [OVS_DEFINE([HAVE_]m4_toupper([$2]))], [$3]) |
| 7507ec48 | 304 | ;; |
| 997d327d | 305 | 1) |
| 7507ec48 JG |
306 | AC_MSG_RESULT([no]) |
| 307 | $4 | |
| 308 | ;; | |
| 997d327d | 309 | *) |
| 7507ec48 JG |
310 | AC_MSG_ERROR([grep exited with status $status]) |
| 311 | ;; | |
| 312 | esac | |
| 313 | else | |
| 314 | AC_MSG_RESULT([file not found]) | |
| 315 | $4 | |
| 316 | fi | |
| 064af421 BP |
317 | ]) |
| 318 | ||
| 13dd4a97 JS |
319 | dnl OVS_FIND_FIELD_IFELSE(FILE, STRUCTURE, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
| 320 | dnl | |
| 321 | dnl Looks for STRUCTURE in FILE. If it is found, greps for REGEX within the | |
| 322 | dnl structure definition. If this is successful, runs IF-MATCH, otherwise | |
| 323 | dnl IF_NO_MATCH. If IF-MATCH is empty then it defines to | |
| 324 | dnl OVS_DEFINE(HAVE_<STRUCTURE>_WITH_<REGEX>), with <STRUCTURE> and <REGEX> | |
| 325 | dnl translated to uppercase. | |
| 326 | AC_DEFUN([OVS_FIND_FIELD_IFELSE], [ | |
| 327 | AC_MSG_CHECKING([whether $2 has member $3 in $1]) | |
| 328 | if test -f $1; then | |
| 83a27884 | 329 | awk '/$2.{/,/^}/' $1 2>/dev/null | grep '$3' >/dev/null |
| 13dd4a97 JS |
330 | status=$? |
| 331 | case $status in | |
| 332 | 0) | |
| 333 | AC_MSG_RESULT([yes]) | |
| 334 | m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4]) | |
| 335 | ;; | |
| 336 | 1) | |
| 337 | AC_MSG_RESULT([no]) | |
| 338 | $5 | |
| 339 | ;; | |
| 340 | *) | |
| 341 | AC_MSG_ERROR([grep exited with status $status]) | |
| 342 | ;; | |
| 343 | esac | |
| 344 | else | |
| 345 | AC_MSG_RESULT([file not found]) | |
| 346 | $5 | |
| 347 | fi | |
| 348 | ]) | |
| 349 | ||
| 71ce9edd JR |
350 | dnl OVS_FIND_PARAM_IFELSE(FILE, FUNCTION, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
| 351 | dnl | |
| 352 | dnl Looks for FUNCTION in FILE. If it is found, greps for REGEX within | |
| 353 | dnl the function signature starting from the line matching FUNCTION | |
| 354 | dnl and ending with the line containing the closing parenthesis. If | |
| 355 | dnl this is successful, runs IF-MATCH, otherwise IF_NO_MATCH. If | |
| 356 | dnl IF-MATCH is empty then it defines to | |
| 357 | dnl OVS_DEFINE(HAVE_<FUNCTION>_WITH_<REGEX>), with <FUNCTION> and | |
| 358 | dnl <REGEX> translated to uppercase. | |
| 359 | AC_DEFUN([OVS_FIND_PARAM_IFELSE], [ | |
| 360 | AC_MSG_CHECKING([whether $2 has parameter $3 in $1]) | |
| 361 | if test -f $1; then | |
| 362 | awk '/$2[[ \t\n]]*\(/,/\)/' $1 2>/dev/null | grep '$3' >/dev/null | |
| 363 | status=$? | |
| 364 | case $status in | |
| 365 | 0) | |
| 366 | AC_MSG_RESULT([yes]) | |
| 367 | m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4]) | |
| 368 | ;; | |
| 369 | 1) | |
| 370 | AC_MSG_RESULT([no]) | |
| 371 | $5 | |
| 372 | ;; | |
| 373 | *) | |
| 374 | AC_MSG_ERROR([grep exited with status $status]) | |
| 375 | ;; | |
| 376 | esac | |
| 377 | else | |
| 378 | AC_MSG_RESULT([file not found]) | |
| 379 | $5 | |
| 380 | fi | |
| 381 | ]) | |
| 382 | ||
| 064af421 BP |
383 | dnl OVS_DEFINE(NAME) |
| 384 | dnl | |
| 385 | dnl Defines NAME to 1 in kcompat.h. | |
| 386 | AC_DEFUN([OVS_DEFINE], [ | |
| 22bcc0e7 | 387 | echo '#define $1 1' >> datapath/linux/kcompat.h.new |
| 064af421 BP |
388 | ]) |
| 389 | ||
| e3438006 | 390 | dnl OVS_CHECK_LINUX_COMPAT |
| 064af421 | 391 | dnl |
| 8063e095 | 392 | dnl Runs various Autoconf checks on the Linux kernel source in |
| e3438006 BP |
393 | dnl the directory in $KBUILD. |
| 394 | AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [ | |
| 22bcc0e7 JG |
395 | rm -f datapath/linux/kcompat.h.new |
| 396 | mkdir -p datapath/linux | |
| 397 | : > datapath/linux/kcompat.h.new | |
| 4aa13c0c | 398 | |
| e23775f2 PS |
399 | echo '#include <linux/version.h> |
| 400 | #ifndef RHEL_RELEASE_CODE | |
| 401 | #define RHEL_RELEASE_CODE 0 | |
| 402 | #define RHEL_RELEASE_VERSION(a, b) 0 | |
| 403 | #endif' >> datapath/linux/kcompat.h.new | |
| 404 | ||
| e3438006 | 405 | OVS_GREP_IFELSE([$KSRC/arch/x86/include/asm/checksum_32.h], [src_err,], |
| 25fb3596 JG |
406 | [OVS_DEFINE([HAVE_CSUM_COPY_DBG])]) |
| 407 | ||
| e23775f2 PS |
408 | OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup.*net], |
| 409 | [OVS_DEFINE([HAVE_IPV6_DST_LOOKUP_NET])]) | |
| 410 | OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_stub]) | |
| 411 | ||
| e3438006 | 412 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [ERR_CAST]) |
| 4303ec34 | 413 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [IS_ERR_OR_NULL]) |
| 54125dd0 | 414 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [PTR_ERR_OR_ZERO]) |
| 4aa13c0c | 415 | |
| d923a695 | 416 | OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [eth_hw_addr_random]) |
| e2f3178f | 417 | OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [ether_addr_copy]) |
| d923a695 | 418 | |
| e23775f2 PS |
419 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [IFLA_GENEVE_TOS]) |
| 420 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [rtnl_link_stats64]) | |
| 421 | OVS_GREP_IFELSE([$KSRC/include/linux/if_link.h], [rtnl_link_stats64]) | |
| d923a695 | 422 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_set_encap_proto]) |
| ec96e663 | 423 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_hwaccel_push_inside]) |
| d923a695 | 424 | |
| e3438006 | 425 | OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [ipv4_is_multicast]) |
| 46d69d18 | 426 | OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [proto_ports_offset]) |
| 2ea82414 PS |
427 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*dst_entry], |
| 428 | [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_DST_ENTRY])]) | |
| e23775f2 PS |
429 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*net], |
| 430 | [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_NET])]) | |
| 431 | ||
| 13dd4a97 JS |
432 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [inet_get_local_port_range.*net], |
| 433 | [OVS_DEFINE([HAVE_INET_GET_LOCAL_PORT_RANGE_USING_NET])]) | |
| 39c0ff22 JS |
434 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_defrag.*net], |
| 435 | [OVS_DEFINE([HAVE_IP_DEFRAG_TAKES_NET])]) | |
| 0374bcbe EB |
436 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h], |
| 437 | [ip_do_fragment], [net], | |
| 438 | [OVS_DEFINE([HAVE_IP_DO_FRAGMENT_TAKES_NET])]) | |
| 0643a78b PS |
439 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h], |
| 440 | [ip_local_out], [net], | |
| 441 | [OVS_DEFINE([HAVE_IP_LOCAL_OUT_TAKES_NET])]) | |
| 442 | ||
| cfda4537 | 443 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_skb_dst_mtu]) |
| 0f09d6e3 JS |
444 | |
| 445 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [IPSKB_FRAG_PMTU], | |
| 446 | [OVS_DEFINE([HAVE_CORRECT_MRU_HANDLING])]) | |
| 06f1a61a | 447 | OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], [__ip_tunnel_change_mtu]) |
| 595e069a JS |
448 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [hashfn.*const], |
| 449 | [OVS_DEFINE([HAVE_INET_FRAGS_CONST])]) | |
| 8f00ece9 JS |
450 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [last_in], |
| 451 | [OVS_DEFINE([HAVE_INET_FRAGS_LAST_IN])]) | |
| e0d45da3 | 452 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evicting]) |
| ccd0a13b | 453 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evictor]) |
| 91408ae0 JS |
454 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags], |
| 455 | [frags_work]) | |
| d1c390e6 JS |
456 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags], |
| 457 | [rwlock]) | |
| e0d45da3 JS |
458 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_queue], |
| 459 | [list_evictor]) | |
| 38f45380 | 460 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_lru_move]) |
| 6ccf21ca YHW |
461 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/inet_frag.h], |
| 462 | [sub_frag_mem_limit], [struct.netns_frags], | |
| 463 | [OVS_DEFINE([HAVE_SUB_FRAG_MEM_LIMIT_ARG_STRUCT_NETNS_FRAGS])]) | |
| 464 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [void.*inet_frags_init], | |
| 465 | [OVS_DEFINE([HAVE_VOID_INET_FRAGS_INIT])]) | |
| 401da7b9 JS |
466 | OVS_GREP_IFELSE([$KSRC/include/net/inetpeer.h], [vif], |
| 467 | [OVS_DEFINE([HAVE_INETPEER_VIF_SUPPORT])]) | |
| 8f00ece9 | 468 | |
| f2252c61 PS |
469 | dnl Check for dst_cache and ipv6 lable to use backported tunnel infrastructure. |
| 470 | dnl OVS does not really need ipv6 label field, but its presence signifies that | |
| 471 | dnl the stack has all required ipv6 support. | |
| 472 | dnl OVS also does not need dst_cache But this dependency allows us to write | |
| 473 | dnl much cleaner code. | |
| 474 | ||
| 3259c4ff PS |
475 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ip_tunnels.h], [ip_tunnel_key], |
| 476 | [label], | |
| 477 | [OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], | |
| 478 | [iptunnel_pull_offloads], | |
| 997d327d | 479 | [OVS_GREP_IFELSE([$KSRC/include/net/dst_cache.h], [dst_cache], |
| f2252c61 | 480 | [OVS_DEFINE([USE_UPSTREAM_TUNNEL])])])]) |
| 4aa13c0c | 481 | |
| fdce83a3 PS |
482 | OVS_GREP_IFELSE([$KSRC/include/linux/net.h], [sock_create_kern.*net], |
| 483 | [OVS_DEFINE([HAVE_SOCK_CREATE_KERN_NET])]) | |
| aad7cb91 | 484 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_fill_metadata_dst]) |
| e3438006 BP |
485 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_disable_lro]) |
| 486 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_stats]) | |
| 487 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_by_index_rcu]) | |
| 3f506f07 | 488 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_recursion_level]) |
| 42d5dd95 TG |
489 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [__skb_gso_segment]) |
| 490 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [can_checksum_protocol]) | |
| e23775f2 | 491 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_get_iflink]) |
| 0a0d9095 PS |
492 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_features_check], |
| 493 | [OVS_DEFINE([USE_UPSTREAM_TUNNEL_GSO])]) | |
| f2252c61 PS |
494 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_vxlan_port]) |
| 495 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_geneve_port]) | |
| d1890de5 | 496 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netdev_features_t]) |
| 8063e095 PS |
497 | dnl Ubuntu kernel 3.13 has defined this struct but not used for netdev->tstats. |
| 498 | dnl So check type of tstats. | |
| 499 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [pcpu_sw_netstats.*tstats], | |
| 500 | [OVS_DEFINE([HAVE_PCPU_SW_NETSTATS])]) | |
| e23775f2 PS |
501 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netif_needs_gso.*net_device], |
| 502 | [OVS_DEFINE([HAVE_NETIF_NEEDS_GSO_NETDEV])]) | |
| 503 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload]) | |
| 504 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload.*uoff], | |
| 505 | [OVS_DEFINE([HAVE_UDP_OFFLOAD_ARG_UOFF])]) | |
| 506 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [gro_remcsum]) | |
| 8ce37339 | 507 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [IFF_PHONY_HEADROOM]) |
| 6ccf21ca YHW |
508 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device_ops], |
| 509 | [extended]) | |
| 7efb1e09 PS |
510 | OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h], |
| 511 | [netdev_master_upper_dev_link], [upper_priv], | |
| 512 | [OVS_DEFINE([HAVE_NETDEV_MASTER_UPPER_DEV_LINK_PRIV])]) | |
| 6c0bf091 JW |
513 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device], |
| 514 | [max_mtu]) | |
| e23775f2 PS |
515 | |
| 516 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_state]) | |
| 517 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_register_net_hook]) | |
| cd7330d0 PS |
518 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn.*nf_hook_ops], |
| 519 | [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_OPS])]) | |
| 0643a78b PS |
520 | OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn], [priv], |
| 521 | [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_PRIV])]) | |
| 522 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops], | |
| 523 | [owner], [OVS_DEFINE([HAVE_NF_HOOKS_OPS_OWNER])]) | |
| 524 | ||
| e4e04c3b | 525 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter_ipv6.h], [nf_ipv6_ops], |
| 2b64e8fc | 526 | [fragment.*sock], [OVS_DEFINE([HAVE_NF_IPV6_OPS_FRAGMENT])]) |
| e2f3178f | 527 | |
| 6d9b6937 JR |
528 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
| 529 | [nf_conn], [struct timer_list[[ \t]]*timeout], | |
| 530 | [OVS_DEFINE([HAVE_NF_CONN_TIMER])]) | |
| 531 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], | |
| 532 | [nf_ct_delete(], [OVS_DEFINE([HAVE_NF_CT_DELETE])]) | |
| 533 | ||
| 71ce9edd JR |
534 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
| 535 | [nf_ct_tmpl_alloc], [nf_conntrack_zone], | |
| 057772cf | 536 | [OVS_DEFINE([HAVE_NF_CT_TMPL_ALLOC_TAKES_STRUCT_ZONE])]) |
| 71ce9edd JR |
537 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
| 538 | [nf_ct_get_tuplepr], [struct.net], | |
| fa67f8e0 | 539 | [OVS_DEFINE([HAVE_NF_CT_GET_TUPLEPR_TAKES_STRUCT_NET])]) |
| dfa791b2 FW |
540 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
| 541 | [nf_ct_set]) | |
| ac9cd0d2 JS |
542 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_zones.h], |
| 543 | [nf_ct_zone_init]) | |
| 459064e7 JS |
544 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
| 545 | [nf_connlabels_get]) | |
| 7f2ab8cd JR |
546 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
| 547 | [nf_connlabels_get], [int bit], | |
| 548 | [OVS_DEFINE([HAVE_NF_CONNLABELS_GET_TAKES_BIT])]) | |
| 9f04eabe JR |
549 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
| 550 | [nf_conn_labels], [words]) | |
| 0d330e42 JR |
551 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_ct_nat_ext_add]) |
| 552 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_alloc_null_binding]) | |
| 553 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_seqadj.h], [nf_ct_seq_adjust]) | |
| 057772cf | 554 | |
| e2f3178f | 555 | OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32]) |
| f000c879 | 556 | OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32_max]) |
| 4aa13c0c | 557 | |
| e23775f2 PS |
558 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [get_link_net]) |
| 559 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [name_assign_type]) | |
| 560 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [rtnl_create_link.*src_net], | |
| 561 | [OVS_DEFINE([HAVE_RTNL_CREATE_LINK_SRC_NET])]) | |
| 562 | OVS_GREP_IFELSE([$KSRC/include/net/net_namespace.h], [possible_net_t]) | |
| 563 | ||
| e3438006 BP |
564 | OVS_GREP_IFELSE([$KSRC/include/linux/rcupdate.h], [rcu_read_lock_held], [], |
| 565 | [OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], | |
| cf6cb3a2 | 566 | [rcu_read_lock_held])]) |
| 8fa52250 | 567 | OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], [lockdep_rtnl_is_held]) |
| 997d327d | 568 | |
| 6a33828d BP |
569 | # Check for the proto_data_valid member in struct sk_buff. The [^@] |
| 570 | # is necessary because some versions of this header remove the | |
| 571 | # member but retain the kerneldoc comment that describes it (which | |
| 572 | # starts with @). The brackets must be doubled because of m4 | |
| 573 | # quoting rules. | |
| e3438006 | 574 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [[[^@]]proto_data_valid], |
| 6a33828d | 575 | [OVS_DEFINE([HAVE_PROTO_DATA_VALID])]) |
| ccb75a28 | 576 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_checksum_start_offset]) |
| e23775f2 | 577 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol]) |
| f2252c61 | 578 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol_type]) |
| c1eb2500 | 579 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_inner_transport_offset]) |
| d23239a2 | 580 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [kfree_skb_list]) |
| 60c4904f | 581 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [rxhash]) |
| 5640cbd8 JG |
582 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u16.*rxhash], |
| 583 | [OVS_DEFINE([HAVE_U16_RXHASH])]) | |
| e3438006 | 584 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_dst(], |
| 85444c3f | 585 | [OVS_DEFINE([HAVE_SKB_DST_ACCESSOR_FUNCS])]) |
| 997d327d | 586 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], |
| 8828e5c7 | 587 | [skb_copy_from_linear_data_offset]) |
| b9c15df9 PS |
588 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], |
| 589 | [skb_reset_tail_pointer]) | |
| e3438006 | 590 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_cow_head]) |
| e3438006 | 591 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_warn_if_lro], |
| 4aa13c0c | 592 | [OVS_DEFINE([HAVE_SKB_WARN_LRO])]) |
| e3438006 | 593 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [consume_skb]) |
| 6c4ea27c | 594 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_frag_page]) |
| da4bbeb7 | 595 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_has_frag_list]) |
| 0aa6fda7 | 596 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_fill_page_desc]) |
| d923a695 | 597 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_reset_mac_len]) |
| dc0d542d | 598 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_unclone]) |
| 1edc458d | 599 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_orphan_frags]) |
| c253c2e3 MC |
600 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_get_hash(], |
| 601 | [OVS_DEFINE([HAVE_SKB_GET_HASH])]) | |
| e2f3178f | 602 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash]) |
| 705e9260 PS |
603 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [int.skb_zerocopy(], |
| 604 | [OVS_DEFINE([HAVE_SKB_ZEROCOPY])]) | |
| 75e93287 FL |
605 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u8.*l4_rxhash], |
| 606 | [OVS_DEFINE([HAVE_L4_RXHASH])]) | |
| 5cce04b6 | 607 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_ensure_writable]) |
| 97894370 | 608 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_pop]) |
| a27c454e | 609 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_vlan_pop]) |
| 97894370 | 610 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_push]) |
| c6e13fcc | 611 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash_if_not_l4]) |
| ea3acd7a | 612 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_postpush_rcsum]) |
| 73daf51a | 613 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [lco_csum]) |
| d3c313c1 | 614 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_nfct]) |
| 4aa13c0c | 615 | |
| e3438006 | 616 | OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [bool], |
| 4aa13c0c | 617 | [OVS_DEFINE([HAVE_BOOL_TYPE])]) |
| e3438006 | 618 | OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [__wsum], |
| e215ebca | 619 | [OVS_DEFINE([HAVE_CSUM_TYPES])]) |
| 8dbe1f9f PS |
620 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/types.h], [__wsum], |
| 621 | [OVS_DEFINE([HAVE_CSUM_TYPES])]) | |
| 4aa13c0c | 622 | |
| e3438006 BP |
623 | OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_replace4]) |
| 624 | OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_unfold]) | |
| 4aa13c0c | 625 | |
| 0d03e51c | 626 | OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [dst_discard_sk]) |
| 1dba1690 | 627 | OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [__skb_dst_copy]) |
| 0d03e51c | 628 | |
| 114fce23 SG |
629 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_has_listeners]) |
| 630 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [mcgrp_offset]) | |
| 14002a59 | 631 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [parallel_ops]) |
| 6233a1bd TG |
632 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [netlink_has_listeners(net->genl_sock], |
| 633 | [OVS_DEFINE([HAVE_GENL_HAS_LISTENERS_TAKES_NET])]) | |
| c623ba49 | 634 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genlmsg_parse]) |
| 13dd4a97 JS |
635 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_notify.*family], |
| 636 | [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_FAMILY])]) | |
| 0643a78b PS |
637 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/genetlink.h], |
| 638 | [genl_notify], [net], | |
| 639 | [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_NET])]) | |
| 640 | ||
| 13dd4a97 JS |
641 | |
| 642 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/genetlink.h], | |
| 643 | [genl_multicast_group], [id]) | |
| fdce83a3 | 644 | OVS_GREP_IFELSE([$KSRC/include/net/geneve.h], [geneve_hdr]) |
| 13dd4a97 | 645 | |
| cc1d0dea | 646 | OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_cisco_register]) |
| e23775f2 | 647 | OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_handle_offloads]) |
| 8abaa53c | 648 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [IP6_FH_F_SKIP_RH]) |
| e23775f2 | 649 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [ip6_local_out_sk]) |
| 2d3ef70b | 650 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [__ipv6_addr_jhash]) |
| a94ebc39 JS |
651 | OVS_GREP_IFELSE([$KSRC/include/net/ip6_fib.h], [rt6i.*u.dst], |
| 652 | [OVS_DEFINE([HAVE_RT6INFO_DST_UNION])]) | |
| 213e1f54 JS |
653 | OVS_GREP_IFELSE([$KSRC/include/net/ip6_route.h], [ip6_frag.*sock], |
| 654 | [OVS_DEFINE([HAVE_IP_FRAGMENT_TAKES_SOCK])]) | |
| 655 | ||
| 91b37647 | 656 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_64bit]) |
| e3438006 | 657 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_get_be16]) |
| 42d5dd95 TG |
658 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be16]) |
| 659 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be32]) | |
| 660 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be64]) | |
| dd693f9b | 661 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_in_addr]) |
| e3438006 | 662 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_find_nested]) |
| 0fcc086d | 663 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_is_last]) |
| 6dbd98e6 SH |
664 | OVS_GREP_IFELSE([$KSRC/include/linux/netlink.h], [void.*netlink_set_err], |
| 665 | [OVS_DEFINE([HAVE_VOID_NETLINK_SET_ERR])]) | |
| 15702dc9 JB |
666 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netlink.h], |
| 667 | [nla_parse], [netlink_ext_ack], | |
| 668 | [OVS_DEFINE([HAVE_NETLINK_EXT_ACK])]) | |
| 4aa13c0c | 669 | |
| c4e976db JG |
670 | OVS_GREP_IFELSE([$KSRC/include/net/sctp/checksum.h], [sctp_compute_cksum]) |
| 671 | ||
| e3438006 | 672 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [ADD_ALL_VLANS_CMD], |
| 431488e6 | 673 | [OVS_DEFINE([HAVE_VLAN_BUG_WORKAROUND])]) |
| 1f649f1c | 674 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_insert_tag_set_proto]) |
| 17e3889f | 675 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [__vlan_insert_tag]) |
| e23775f2 | 676 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_get_protocol]) |
| 5c3f23fe | 677 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [skb_vlan_tagged]) |
| ca6da1b1 | 678 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [eth_type_vlan]) |
| 431488e6 | 679 | |
| 09f27436 JG |
680 | OVS_GREP_IFELSE([$KSRC/include/linux/u64_stats_sync.h], [u64_stats_fetch_begin_irq]) |
| 681 | ||
| 3174a818 TG |
682 | OVS_GREP_IFELSE([$KSRC/include/net/vxlan.h], [struct vxlan_metadata], |
| 683 | [OVS_DEFINE([HAVE_VXLAN_METADATA])]) | |
| f6a0c895 | 684 | OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_flow_src_port], |
| 13dd4a97 JS |
685 | [OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [inet_get_local_port_range(net], |
| 686 | [OVS_DEFINE([HAVE_UDP_FLOW_SRC_PORT])])]) | |
| 687 | OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_v4_check]) | |
| e23775f2 | 688 | OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_gro_complete]) |
| 06aeda48 PS |
689 | OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [sk_buff.*udp_tunnel_handle_offloads], |
| 690 | [OVS_DEFINE([HAVE_UDP_TUNNEL_HANDLE_OFFLOAD_RET_SKB])]) | |
| d7e58913 PS |
691 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_sock_cfg], |
| 692 | [gro_receive]) | |
| e23775f2 PS |
693 | |
| 694 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [ignore_df], | |
| f6a0c895 TG |
695 | [OVS_DEFINE([HAVE_IGNORE_DF_RENAME])]) |
| 696 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netdevice.h], [NET_NAME_UNKNOWN], | |
| 697 | [OVS_DEFINE([HAVE_NET_NAME_UNKNOWN])]) | |
| f285d3e7 | 698 | |
| b7ebebcd PS |
699 | OVS_GREP_IFELSE([$KSRC/include/net/sock.h], [sk_no_check_tx]) |
| 700 | OVS_GREP_IFELSE([$KSRC/include/linux/udp.h], [no_check6_tx]) | |
| 21a719d6 FL |
701 | OVS_GREP_IFELSE([$KSRC/include/linux/utsrelease.h], [el6], |
| 702 | [OVS_DEFINE([HAVE_RHEL6_PER_CPU])]) | |
| c970aa4e PS |
703 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/protocol.h], |
| 704 | [udp_add_offload], [net], | |
| 705 | [OVS_DEFINE([HAVE_UDP_ADD_OFFLOAD_TAKES_NET])]) | |
| 706 | ||
| 21a719d6 | 707 | |
| 22bcc0e7 JG |
708 | if cmp -s datapath/linux/kcompat.h.new \ |
| 709 | datapath/linux/kcompat.h >/dev/null 2>&1; then | |
| 710 | rm datapath/linux/kcompat.h.new | |
| 064af421 | 711 | else |
| 22bcc0e7 | 712 | mv datapath/linux/kcompat.h.new datapath/linux/kcompat.h |
| 064af421 BP |
713 | fi |
| 714 | ]) | |
| 715 | ||
| 716 | dnl Checks for net/if_packet.h. | |
| 717 | AC_DEFUN([OVS_CHECK_IF_PACKET], | |
| 718 | [AC_CHECK_HEADER([net/if_packet.h], | |
| 719 | [HAVE_IF_PACKET=yes], | |
| 720 | [HAVE_IF_PACKET=no]) | |
| 721 | AM_CONDITIONAL([HAVE_IF_PACKET], [test "$HAVE_IF_PACKET" = yes]) | |
| 722 | if test "$HAVE_IF_PACKET" = yes; then | |
| 723 | AC_DEFINE([HAVE_IF_PACKET], [1], | |
| 724 | [Define to 1 if net/if_packet.h is available.]) | |
| 725 | fi]) | |
| 726 | ||
| f6eb6b20 | 727 | dnl Checks for net/if_dl.h. |
| d30e714c | 728 | dnl |
| d23fa2ed YT |
729 | dnl (We use this as a proxy for checking whether we're building on FreeBSD |
| 730 | dnl or NetBSD.) | |
| 9360d9b7 EM |
731 | AC_DEFUN([OVS_CHECK_IF_DL], |
| 732 | [AC_CHECK_HEADER([net/if_dl.h], | |
| 733 | [HAVE_IF_DL=yes], | |
| 734 | [HAVE_IF_DL=no]) | |
| 735 | AM_CONDITIONAL([HAVE_IF_DL], [test "$HAVE_IF_DL" = yes]) | |
| 736 | if test "$HAVE_IF_DL" = yes; then | |
| 737 | AC_DEFINE([HAVE_IF_DL], [1], | |
| 738 | [Define to 1 if net/if_dl.h is available.]) | |
| d30e714c | 739 | |
| d23fa2ed | 740 | # On these platforms we use libpcap to access network devices. |
| d30e714c | 741 | AC_SEARCH_LIBS([pcap_open_live], [pcap]) |
| 9360d9b7 EM |
742 | fi]) |
| 743 | ||
| e50097d2 BP |
744 | dnl Checks for buggy strtok_r. |
| 745 | dnl | |
| 746 | dnl Some versions of glibc 2.7 has a bug in strtok_r when compiling | |
| 747 | dnl with optimization that can cause segfaults: | |
| 748 | dnl | |
| 749 | dnl http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614. | |
| 750 | AC_DEFUN([OVS_CHECK_STRTOK_R], | |
| 751 | [AC_CACHE_CHECK( | |
| 752 | [whether strtok_r macro segfaults on some inputs], | |
| 753 | [ovs_cv_strtok_r_bug], | |
| 754 | [AC_RUN_IFELSE( | |
| 755 | [AC_LANG_PROGRAM([#include <stdio.h> | |
| 756 | #include <string.h> | |
| 757 | ], | |
| 416e7132 BP |
758 | [[#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 |
| 759 | /* Assume bug is present, because relatively minor | |
| 760 | changes in compiler settings (e.g. optimization | |
| 761 | level) can make it crop up. */ | |
| 762 | return 1; | |
| 763 | #else | |
| 764 | char string[] = ":::"; | |
| e50097d2 BP |
765 | char *save_ptr = (char *) 0xc0ffee; |
| 766 | char *token1, *token2; | |
| 767 | token1 = strtok_r(string, ":", &save_ptr); | |
| 768 | token2 = strtok_r(NULL, ":", &save_ptr); | |
| 5819a7cd | 769 | freopen ("/dev/null", "w", stdout); |
| e50097d2 BP |
770 | printf ("%s %s\n", token1, token2); |
| 771 | return 0; | |
| 416e7132 | 772 | #endif |
| e50097d2 BP |
773 | ]])], |
| 774 | [ovs_cv_strtok_r_bug=no], | |
| 775 | [ovs_cv_strtok_r_bug=yes], | |
| 776 | [ovs_cv_strtok_r_bug=yes])]) | |
| 777 | if test $ovs_cv_strtok_r_bug = yes; then | |
| 778 | AC_DEFINE([HAVE_STRTOK_R_BUG], [1], | |
| 779 | [Define if strtok_r macro segfaults on some inputs]) | |
| 780 | fi | |
| 781 | ]) | |
| 782 | ||
| 064af421 BP |
783 | dnl ---------------------------------------------------------------------- |
| 784 | dnl These macros are from GNU PSPP, with the following original license: | |
| 785 | dnl Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc. | |
| 786 | dnl This file is free software; the Free Software Foundation | |
| 787 | dnl gives unlimited permission to copy and/or distribute it, | |
| 788 | dnl with or without modifications, as long as this notice is preserved. | |
| 789 | ||
| 50194820 | 790 | AC_DEFUN([_OVS_CHECK_CC_OPTION], [dnl |
| 726af752 | 791 | m4_define([ovs_cv_name], [ovs_cv_[]m4_translit([$1], [-= ], [__])])dnl |
| 064af421 BP |
792 | AC_CACHE_CHECK([whether $CC accepts $1], [ovs_cv_name], |
| 793 | [ovs_save_CFLAGS="$CFLAGS" | |
| 50194820 BP |
794 | dnl Include -Werror in the compiler options, because without -Werror |
| 795 | dnl clang's GCC-compatible compiler driver does not return a failure | |
| 796 | dnl exit status even though it complains about options it does not | |
| 797 | dnl understand. | |
| c2deac54 YT |
798 | dnl |
| 799 | dnl Also, check stderr as gcc exits with status 0 for options | |
| 800 | dnl rejected at getopt level. | |
| 801 | dnl % touch /tmp/a.c | |
| 802 | dnl % gcc -g -c -Werror -Qunused-arguments /tmp/a.c; echo $? | |
| 803 | dnl gcc: unrecognized option '-Qunused-arguments' | |
| 804 | dnl 0 | |
| 805 | dnl % | |
| 50194820 | 806 | CFLAGS="$CFLAGS $WERROR $1" |
| 37f4615e BP |
807 | AC_COMPILE_IFELSE( |
| 808 | [AC_LANG_SOURCE([int x;])], | |
| 809 | [if test -s conftest.err && grep "unrecognized option" conftest.err | |
| 810 | then | |
| 811 | ovs_cv_name[]=no | |
| 812 | else | |
| 813 | ovs_cv_name[]=yes | |
| 814 | fi], | |
| 815 | [ovs_cv_name[]=no]) | |
| 064af421 BP |
816 | CFLAGS="$ovs_save_CFLAGS"]) |
| 817 | if test $ovs_cv_name = yes; then | |
| 83f6c050 | 818 | m4_if([$2], [], [:], [$2]) |
| 064af421 BP |
819 | else |
| 820 | m4_if([$3], [], [:], [$3]) | |
| 821 | fi | |
| 822 | ]) | |
| 823 | ||
| 50194820 BP |
824 | dnl OVS_CHECK_WERROR |
| 825 | dnl | |
| 826 | dnl Check whether the C compiler accepts -Werror. | |
| 827 | dnl Sets $WERROR to "-Werror", if so, and otherwise to the empty string. | |
| 828 | AC_DEFUN([OVS_CHECK_WERROR], | |
| 829 | [WERROR= | |
| 830 | _OVS_CHECK_CC_OPTION([-Werror], [WERROR=-Werror])]) | |
| 831 | ||
| 832 | dnl OVS_CHECK_CC_OPTION([OPTION], [ACTION-IF-ACCEPTED], [ACTION-IF-REJECTED]) | |
| 833 | dnl Check whether the given C compiler OPTION is accepted. | |
| 834 | dnl If so, execute ACTION-IF-ACCEPTED, otherwise ACTION-IF-REJECTED. | |
| 835 | AC_DEFUN([OVS_CHECK_CC_OPTION], | |
| 836 | [AC_REQUIRE([OVS_CHECK_WERROR]) | |
| 837 | _OVS_CHECK_CC_OPTION([$1], [$2], [$3])]) | |
| 838 | ||
| 064af421 BP |
839 | dnl OVS_ENABLE_OPTION([OPTION]) |
| 840 | dnl Check whether the given C compiler OPTION is accepted. | |
| d161c099 | 841 | dnl If so, add it to WARNING_FLAGS. |
| 064af421 BP |
842 | dnl Example: OVS_ENABLE_OPTION([-Wdeclaration-after-statement]) |
| 843 | AC_DEFUN([OVS_ENABLE_OPTION], | |
| d161c099 BP |
844 | [OVS_CHECK_CC_OPTION([$1], [WARNING_FLAGS="$WARNING_FLAGS $1"]) |
| 845 | AC_SUBST([WARNING_FLAGS])]) | |
| c72e245a BP |
846 | |
| 847 | dnl OVS_CONDITIONAL_CC_OPTION([OPTION], [CONDITIONAL]) | |
| 848 | dnl Check whether the given C compiler OPTION is accepted. | |
| 849 | dnl If so, enable the given Automake CONDITIONAL. | |
| 850 | ||
| 851 | dnl Example: OVS_CONDITIONAL_CC_OPTION([-Wno-unused], [HAVE_WNO_UNUSED]) | |
| 852 | AC_DEFUN([OVS_CONDITIONAL_CC_OPTION], | |
| 853 | [OVS_CHECK_CC_OPTION( | |
| 854 | [$1], [ovs_have_cc_option=yes], [ovs_have_cc_option=no]) | |
| 855 | AM_CONDITIONAL([$2], [test $ovs_have_cc_option = yes])]) | |
| 064af421 | 856 | dnl ---------------------------------------------------------------------- |
| ed2d4f6a BP |
857 | |
| 858 | dnl Check for too-old XenServer. | |
| 859 | AC_DEFUN([OVS_CHECK_XENSERVER_VERSION], | |
| 860 | [AC_CACHE_CHECK([XenServer release], [ovs_cv_xsversion], | |
| 861 | [if test -e /etc/redhat-release; then | |
| 862 | ovs_cv_xsversion=`sed -n 's/^XenServer DDK release \([[^-]]*\)-.*/\1/p' /etc/redhat-release` | |
| 863 | fi | |
| 864 | if test -z "$ovs_cv_xsversion"; then | |
| 865 | ovs_cv_xsversion=none | |
| 866 | fi]) | |
| 867 | case $ovs_cv_xsversion in | |
| 868 | none) | |
| 869 | ;; | |
| 870 | ||
| 871 | [[1-9]][[0-9]]* | dnl XenServer 10 or later | |
| 872 | [[6-9]]* | dnl XenServer 6 or later | |
| 873 | 5.[[7-9]]* | dnl XenServer 5.7 or later | |
| 874 | 5.6.[[1-9]][[0-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.1000 or later | |
| 875 | 5.6.[[2-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.200 or later | |
| 876 | 5.6.1[[0-9]][[0-9]]) dnl Xenserver 5.6.100 or later | |
| 877 | ;; | |
| 878 | ||
| 879 | *) | |
| 880 | AC_MSG_ERROR([This appears to be XenServer $ovs_cv_xsversion, but only XenServer 5.6.100 or later is supported. (If you are really using a supported version of XenServer, you may override this error message by specifying 'ovs_cv_xsversion=5.6.100' on the "configure" command line.)]) | |
| 881 | ;; | |
| 882 | esac]) | |
| 29d935d6 | 883 | |
| 643c0c34 BP |
884 | dnl OVS_CHECK_SPARSE_TARGET |
| 885 | dnl | |
| 886 | dnl The "cgcc" script from "sparse" isn't very good at detecting the | |
| 887 | dnl target for which the code is being built. This helps it out. | |
| 888 | AC_DEFUN([OVS_CHECK_SPARSE_TARGET], | |
| 889 | [AC_CACHE_CHECK( | |
| 890 | [target hint for cgcc], | |
| 891 | [ac_cv_sparse_target], | |
| 892 | [AS_CASE([`$CC -dumpmachine 2>/dev/null`], | |
| 893 | [i?86-* | athlon-*], [ac_cv_sparse_target=x86], | |
| 894 | [x86_64-*], [ac_cv_sparse_target=x86_64], | |
| 895 | [ac_cv_sparse_target=other])]) | |
| 896 | AS_CASE([$ac_cv_sparse_target], | |
| 897 | [x86], [SPARSEFLAGS= CGCCFLAGS=-target=i86], | |
| 898 | [x86_64], [SPARSEFLAGS=-m64 CGCCFLAGS=-target=x86_64], | |
| 899 | [SPARSEFLAGS= CGCCFLAGS=]) | |
| 900 | AC_SUBST([SPARSEFLAGS]) | |
| 901 | AC_SUBST([CGCCFLAGS])]) | |
| 902 | ||
| 32e96ab7 AZ |
903 | dnl OVS_SPARSE_EXTRA_INCLUDES |
| 904 | dnl | |
| 905 | dnl The cgcc script from "sparse" does not search gcc's default | |
| 906 | dnl search path. Get the default search path from GCC and pass | |
| 907 | dnl them to sparse. | |
| 908 | AC_DEFUN([OVS_SPARSE_EXTRA_INCLUDES], | |
| 909 | AC_SUBST([SPARSE_EXTRA_INCLUDES], | |
| 910 | [`$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 ' ' `] )) | |
| 911 | ||
| 29d935d6 BP |
912 | dnl OVS_ENABLE_SPARSE |
| 913 | AC_DEFUN([OVS_ENABLE_SPARSE], | |
| 643c0c34 | 914 | [AC_REQUIRE([OVS_CHECK_SPARSE_TARGET]) |
| 32e96ab7 | 915 | AC_REQUIRE([OVS_SPARSE_EXTRA_INCLUDES]) |
| 372d58a4 BP |
916 | : ${SPARSE=sparse} |
| 917 | AC_SUBST([SPARSE]) | |
| 918 | AC_CONFIG_COMMANDS_PRE( | |
| 344f6253 | 919 | [CC='$(if $(C),env REAL_CC="'"$CC"'" CHECK="$(SPARSE) -I $(top_srcdir)/include/sparse $(SPARSEFLAGS) $(SPARSE_EXTRA_INCLUDES) " cgcc $(CGCCFLAGS),'"$CC"')'])]) |
| 8a8cd0ac BP |
920 | |
| 921 | dnl OVS_PTHREAD_SET_NAME | |
| 922 | dnl | |
| 923 | dnl This checks for three known variants of pthreads functions for setting | |
| 924 | dnl the name of the current thread: | |
| 925 | dnl | |
| 926 | dnl glibc: int pthread_setname_np(pthread_t, const char *name); | |
| 927 | dnl NetBSD: int pthread_setname_np(pthread_t, const char *format, void *arg); | |
| 928 | dnl FreeBSD: int pthread_set_name_np(pthread_t, const char *name); | |
| 929 | dnl | |
| 930 | dnl For glibc and FreeBSD, the arguments are just a thread and its name. For | |
| 931 | dnl NetBSD, 'format' is a printf() format string and 'arg' is an argument to | |
| 932 | dnl provide to it. | |
| 933 | dnl | |
| 934 | dnl This macro defines: | |
| 935 | dnl | |
| 936 | dnl glibc: HAVE_GLIBC_PTHREAD_SETNAME_NP | |
| 937 | dnl NetBSD: HAVE_NETBSD_PTHREAD_SETNAME_NP | |
| 938 | dnl FreeBSD: HAVE_PTHREAD_SET_NAME_NP | |
| 939 | AC_DEFUN([OVS_CHECK_PTHREAD_SET_NAME], | |
| 940 | [AC_CHECK_FUNCS([pthread_set_name_np]) | |
| 941 | if test $ac_cv_func_pthread_set_name_np != yes; then | |
| 942 | AC_CACHE_CHECK( | |
| 943 | [for pthread_setname_np() variant], | |
| 944 | [ovs_cv_pthread_setname_np], | |
| 945 | [AC_LINK_IFELSE( | |
| a0903134 | 946 | [AC_LANG_PROGRAM([#include <pthread.h> |
| 8a8cd0ac | 947 | ], [pthread_setname_np(pthread_self(), "name");])], |
| a0903134 | 948 | [ovs_cv_pthread_setname_np=glibc], |
| 8a8cd0ac | 949 | [AC_LINK_IFELSE( |
| a0903134 | 950 | [AC_LANG_PROGRAM([#include <pthread.h> |
| 8a8cd0ac BP |
951 | ], [pthread_setname_np(pthread_self(), "%s", "name");])], |
| 952 | [ovs_cv_pthread_setname_np=netbsd], | |
| a0903134 | 953 | [ovs_cv_pthread_setname_np=none])])]) |
| 8a8cd0ac BP |
954 | case $ovs_cv_pthread_setname_np in # ( |
| 955 | glibc) | |
| a0903134 YT |
956 | AC_DEFINE( |
| 957 | [HAVE_GLIBC_PTHREAD_SETNAME_NP], [1], | |
| 958 | [Define to 1 if pthread_setname_np() is available and takes 2 parameters (like glibc).]) | |
| 959 | ;; # ( | |
| 8a8cd0ac | 960 | netbsd) |
| a0903134 YT |
961 | AC_DEFINE( |
| 962 | [HAVE_NETBSD_PTHREAD_SETNAME_NP], [1], | |
| 963 | [Define to 1 if pthread_setname_np() is available and takes 3 parameters (like NetBSD).]) | |
| 964 | ;; | |
| 8a8cd0ac BP |
965 | esac |
| 966 | fi]) | |
| 5020f5f0 BP |
967 | |
| 968 | dnl OVS_CHECK_LINUX_HOST. | |
| 969 | dnl | |
| 970 | dnl Checks whether we're building for a Linux host, based on the presence of | |
| 971 | dnl the __linux__ preprocessor symbol, and sets up an Automake conditional | |
| 972 | dnl LINUX based on the result. | |
| 973 | AC_DEFUN([OVS_CHECK_LINUX_HOST], | |
| 974 | [AC_CACHE_CHECK( | |
| 975 | [whether __linux__ is defined], | |
| 976 | [ovs_cv_linux], | |
| 977 | [AC_COMPILE_IFELSE( | |
| 978 | [AC_LANG_PROGRAM([enum { LINUX = __linux__};], [])], | |
| 979 | [ovs_cv_linux=true], | |
| 980 | [ovs_cv_linux=false])]) | |
| 981 | AM_CONDITIONAL([LINUX], [$ovs_cv_linux])]) |