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716154c5 BB |
1 | ############################################################################### |
2 | # Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. | |
3 | # Copyright (C) 2007 The Regents of the University of California. | |
4 | # Written by Brian Behlendorf <behlendorf1@llnl.gov>. | |
5 | ############################################################################### | |
6 | # SPL_AC_CONFIG_KERNEL: Default SPL kernel configuration. | |
7 | ############################################################################### | |
8 | ||
86933a6e BB |
9 | AC_DEFUN([SPL_AC_CONFIG_KERNEL], [ |
10 | SPL_AC_KERNEL | |
11 | ||
86933a6e BB |
12 | if test "${LINUX_OBJ}" != "${LINUX}"; then |
13 | KERNELMAKE_PARAMS="$KERNELMAKE_PARAMS O=$LINUX_OBJ" | |
14 | fi | |
86933a6e | 15 | AC_SUBST(KERNELMAKE_PARAMS) |
a7958f7e BB |
16 | |
17 | KERNELCPPFLAGS="$KERNELCPPFLAGS -Wstrict-prototypes" | |
86933a6e BB |
18 | AC_SUBST(KERNELCPPFLAGS) |
19 | ||
0408008b | 20 | SPL_AC_TEST_MODULE |
5e9b5d83 | 21 | SPL_AC_ATOMIC_SPINLOCK |
33a20369 | 22 | SPL_AC_SHRINKER_CALLBACK |
79a3bf13 | 23 | SPL_AC_CTL_NAME |
0f836a62 | 24 | SPL_AC_CONFIG_TRIM_UNUSED_KSYMS |
80093b6f | 25 | SPL_AC_PDE_DATA |
a54718cf | 26 | SPL_AC_SET_FS_PWD_WITH_CONST |
0d0b5237 | 27 | SPL_AC_2ARGS_VFS_FSYNC |
bbdc6ae4 | 28 | SPL_AC_INODE_TRUNCATE_RANGE |
9b2048c2 | 29 | SPL_AC_FS_STRUCT_SPINLOCK |
80093b6f | 30 | SPL_AC_KUIDGID_T |
1c7b3eaf | 31 | SPL_AC_KERNEL_FALLOCATE |
42b3ce62 BB |
32 | SPL_AC_CONFIG_ZLIB_INFLATE |
33 | SPL_AC_CONFIG_ZLIB_DEFLATE | |
3dfc591a | 34 | SPL_AC_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE |
a55bcaad | 35 | SPL_AC_SHRINK_CONTROL_STRUCT |
588d9004 | 36 | SPL_AC_RWSEM_SPINLOCK_IS_RAW |
0f836a62 AX |
37 | SPL_AC_RWSEM_ACTIVITY |
38 | SPL_AC_RWSEM_ATOMIC_LONG_COUNT | |
10087fe1 | 39 | SPL_AC_SCHED_RT_HEADER |
2ea56c1d AX |
40 | SPL_AC_SCHED_SIGNAL_HEADER |
41 | SPL_AC_4ARGS_VFS_GETATTR | |
42 | SPL_AC_3ARGS_VFS_GETATTR | |
2a305c34 | 43 | SPL_AC_2ARGS_VFS_GETATTR |
33a20369 | 44 | SPL_AC_USLEEP_RANGE |
9e4fb5c2 | 45 | SPL_AC_KMEM_CACHE_ALLOCFLAGS |
b97c7791 | 46 | SPL_AC_KERNEL_INODE_TIMES |
10946b02 | 47 | SPL_AC_WAIT_ON_BIT |
0f836a62 | 48 | SPL_AC_INODE_LOCK |
ac9cc135 | 49 | SPL_AC_GROUP_INFO_GID |
ec06701b AX |
50 | SPL_AC_KMEM_CACHE_CREATE_USERCOPY |
51 | SPL_AC_WAIT_QUEUE_ENTRY_T | |
52 | SPL_AC_WAIT_QUEUE_HEAD_ENTRY | |
34ee731f | 53 | SPL_AC_IO_SCHEDULE_TIMEOUT |
99d6d8dc AX |
54 | SPL_AC_KERNEL_WRITE |
55 | SPL_AC_KERNEL_READ | |
f3bc16ff | 56 | SPL_AC_KERNEL_TIMER_FUNCTION_TIMER_LIST |
86933a6e BB |
57 | ]) |
58 | ||
59 | AC_DEFUN([SPL_AC_MODULE_SYMVERS], [ | |
bb339d06 | 60 | modpost=$LINUX/scripts/Makefile.modpost |
86933a6e | 61 | AC_MSG_CHECKING([kernel file name for module symbols]) |
0408008b | 62 | if test "x$enable_linux_builtin" != xyes -a -f "$modpost"; then |
bb339d06 BB |
63 | if grep -q Modules.symvers $modpost; then |
64 | LINUX_SYMBOLS=Modules.symvers | |
65 | else | |
66 | LINUX_SYMBOLS=Module.symvers | |
67 | fi | |
912fd84d BB |
68 | |
69 | if ! test -f "$LINUX_OBJ/$LINUX_SYMBOLS"; then | |
70 | AC_MSG_ERROR([ | |
71 | *** Please make sure the kernel devel package for your distribution | |
80093b6f | 72 | *** is installed. If you are building with a custom kernel, make sure the |
912fd84d BB |
73 | *** kernel is configured, built, and the '--with-linux=PATH' configure |
74 | *** option refers to the location of the kernel source.]) | |
75 | fi | |
86933a6e | 76 | else |
bb339d06 | 77 | LINUX_SYMBOLS=NONE |
86933a6e BB |
78 | fi |
79 | AC_MSG_RESULT($LINUX_SYMBOLS) | |
80 | AC_SUBST(LINUX_SYMBOLS) | |
81 | ]) | |
82 | ||
57d86234 | 83 | AC_DEFUN([SPL_AC_KERNEL], [ |
57d86234 | 84 | AC_ARG_WITH([linux], |
85 | AS_HELP_STRING([--with-linux=PATH], | |
86 | [Path to kernel source]), | |
39a3d2a4 | 87 | [kernelsrc="$withval"]) |
57d86234 | 88 | |
89 | AC_ARG_WITH([linux-obj], | |
90 | AS_HELP_STRING([--with-linux-obj=PATH], | |
91 | [Path to kernel build objects]), | |
92 | [kernelbuild="$withval"]) | |
93 | ||
94 | AC_MSG_CHECKING([kernel source directory]) | |
95 | if test -z "$kernelsrc"; then | |
22ccfaa8 BB |
96 | if test -e "/lib/modules/$(uname -r)/source"; then |
97 | headersdir="/lib/modules/$(uname -r)/source" | |
98 | sourcelink=$(readlink -f "$headersdir") | |
99 | elif test -e "/lib/modules/$(uname -r)/build"; then | |
100 | headersdir="/lib/modules/$(uname -r)/build" | |
534c4e38 BM |
101 | sourcelink=$(readlink -f "$headersdir") |
102 | else | |
103 | sourcelink=$(ls -1d /usr/src/kernels/* \ | |
723aa3b0 | 104 | /usr/src/linux-* \ |
534c4e38 BM |
105 | 2>/dev/null | grep -v obj | tail -1) |
106 | fi | |
57d86234 | 107 | |
8fd4e3af | 108 | if test -n "$sourcelink" && test -e ${sourcelink}; then |
d4326403 | 109 | kernelsrc=`readlink -f ${sourcelink}` |
d4326403 | 110 | else |
251677e9 | 111 | kernelsrc="[Not found]" |
57d86234 | 112 | fi |
c5f70460 BB |
113 | else |
114 | if test "$kernelsrc" = "NONE"; then | |
115 | kernsrcver=NONE | |
116 | fi | |
ec06701b | 117 | withlinux=yes |
57d86234 | 118 | fi |
119 | ||
120 | AC_MSG_RESULT([$kernelsrc]) | |
251677e9 BB |
121 | if test ! -d "$kernelsrc"; then |
122 | AC_MSG_ERROR([ | |
123 | *** Please make sure the kernel devel package for your distribution | |
80093b6f | 124 | *** is installed and then try again. If that fails, you can specify the |
251677e9 BB |
125 | *** location of the kernel source with the '--with-linux=PATH' option.]) |
126 | fi | |
127 | ||
57d86234 | 128 | AC_MSG_CHECKING([kernel build directory]) |
39a3d2a4 | 129 | if test -z "$kernelbuild"; then |
ec06701b | 130 | if test x$withlinux != xyes -a -e "/lib/modules/$(uname -r)/build"; then |
22ccfaa8 BB |
131 | kernelbuild=`readlink -f /lib/modules/$(uname -r)/build` |
132 | elif test -d ${kernelsrc}-obj/${target_cpu}/${target_cpu}; then | |
e2d28a37 BB |
133 | kernelbuild=${kernelsrc}-obj/${target_cpu}/${target_cpu} |
134 | elif test -d ${kernelsrc}-obj/${target_cpu}/default; then | |
135 | kernelbuild=${kernelsrc}-obj/${target_cpu}/default | |
136 | elif test -d `dirname ${kernelsrc}`/build-${target_cpu}; then | |
137 | kernelbuild=`dirname ${kernelsrc}`/build-${target_cpu} | |
39a3d2a4 BB |
138 | else |
139 | kernelbuild=${kernelsrc} | |
140 | fi | |
bf338d8d | 141 | fi |
57d86234 | 142 | AC_MSG_RESULT([$kernelbuild]) |
143 | ||
144 | AC_MSG_CHECKING([kernel source version]) | |
fd921c2e BB |
145 | utsrelease1=$kernelbuild/include/linux/version.h |
146 | utsrelease2=$kernelbuild/include/linux/utsrelease.h | |
147 | utsrelease3=$kernelbuild/include/generated/utsrelease.h | |
148 | if test -r $utsrelease1 && fgrep -q UTS_RELEASE $utsrelease1; then | |
149 | utsrelease=linux/version.h | |
150 | elif test -r $utsrelease2 && fgrep -q UTS_RELEASE $utsrelease2; then | |
151 | utsrelease=linux/utsrelease.h | |
152 | elif test -r $utsrelease3 && fgrep -q UTS_RELEASE $utsrelease3; then | |
153 | utsrelease=generated/utsrelease.h | |
154 | fi | |
57d86234 | 155 | |
fd921c2e BB |
156 | if test "$utsrelease"; then |
157 | kernsrcver=`(echo "#include <$utsrelease>"; | |
57d86234 | 158 | echo "kernsrcver=UTS_RELEASE") | |
d4326403 | 159 | cpp -I $kernelbuild/include | |
57d86234 | 160 | grep "^kernsrcver=" | cut -d \" -f 2` |
57d86234 | 161 | |
fd921c2e BB |
162 | if test -z "$kernsrcver"; then |
163 | AC_MSG_RESULT([Not found]) | |
164 | AC_MSG_ERROR([*** Cannot determine kernel version.]) | |
165 | fi | |
166 | else | |
57d86234 | 167 | AC_MSG_RESULT([Not found]) |
0408008b ED |
168 | if test "x$enable_linux_builtin" != xyes; then |
169 | AC_MSG_ERROR([*** Cannot find UTS_RELEASE definition.]) | |
170 | else | |
171 | AC_MSG_ERROR([ | |
172 | *** Cannot find UTS_RELEASE definition. | |
173 | *** Please run 'make prepare' inside the kernel source tree.]) | |
174 | fi | |
57d86234 | 175 | fi |
176 | ||
177 | AC_MSG_RESULT([$kernsrcver]) | |
178 | ||
57d86234 | 179 | LINUX=${kernelsrc} |
180 | LINUX_OBJ=${kernelbuild} | |
c5f70460 BB |
181 | LINUX_VERSION=${kernsrcver} |
182 | ||
57d86234 | 183 | AC_SUBST(LINUX) |
184 | AC_SUBST(LINUX_OBJ) | |
c5f70460 | 185 | AC_SUBST(LINUX_VERSION) |
57d86234 | 186 | |
86933a6e | 187 | SPL_AC_MODULE_SYMVERS |
2e0e7e69 BB |
188 | ]) |
189 | ||
287b2fb1 BB |
190 | dnl # |
191 | dnl # Default SPL user configuration | |
192 | dnl # | |
ad35b6a6 | 193 | AC_DEFUN([SPL_AC_CONFIG_USER], []) |
287b2fb1 BB |
194 | |
195 | dnl # | |
196 | dnl # Check for rpm+rpmbuild to build RPM packages. If these tools | |
80093b6f | 197 | dnl # are missing, it is non-fatal, but you will not be able to build |
287b2fb1 BB |
198 | dnl # RPM packages and will be warned if you try too. |
199 | dnl # | |
80093b6f | 200 | dnl # By default, the generic spec file will be used because it requires |
493972c8 BB |
201 | dnl # minimal dependencies. Distribution specific spec files can be |
202 | dnl # placed under the 'rpm/<distribution>' directory and enabled using | |
203 | dnl # the --with-spec=<distribution> configure option. | |
204 | dnl # | |
287b2fb1 BB |
205 | AC_DEFUN([SPL_AC_RPM], [ |
206 | RPM=rpm | |
207 | RPMBUILD=rpmbuild | |
208 | ||
209 | AC_MSG_CHECKING([whether $RPM is available]) | |
210 | AS_IF([tmp=$($RPM --version 2>/dev/null)], [ | |
211 | RPM_VERSION=$(echo $tmp | $AWK '/RPM/ { print $[3] }') | |
212 | HAVE_RPM=yes | |
213 | AC_MSG_RESULT([$HAVE_RPM ($RPM_VERSION)]) | |
214 | ],[ | |
215 | HAVE_RPM=no | |
216 | AC_MSG_RESULT([$HAVE_RPM]) | |
217 | ]) | |
218 | ||
219 | AC_MSG_CHECKING([whether $RPMBUILD is available]) | |
220 | AS_IF([tmp=$($RPMBUILD --version 2>/dev/null)], [ | |
221 | RPMBUILD_VERSION=$(echo $tmp | $AWK '/RPM/ { print $[3] }') | |
222 | HAVE_RPMBUILD=yes | |
223 | AC_MSG_RESULT([$HAVE_RPMBUILD ($RPMBUILD_VERSION)]) | |
224 | ],[ | |
225 | HAVE_RPMBUILD=no | |
226 | AC_MSG_RESULT([$HAVE_RPMBUILD]) | |
227 | ]) | |
228 | ||
74894160 AX |
229 | RPM_DEFINE_COMMON='--define "$(DEBUG_SPL) 1"' |
230 | RPM_DEFINE_COMMON+=' --define "$(DEBUG_KMEM) 1"' | |
231 | RPM_DEFINE_COMMON+=' --define "$(DEBUG_KMEM_TRACKING) 1"' | |
493972c8 BB |
232 | RPM_DEFINE_UTIL= |
233 | RPM_DEFINE_KMOD='--define "kernels $(LINUX_VERSION)"' | |
34ee731f | 234 | RPM_DEFINE_KMOD+=' --define "_wrong_version_format_terminate_build 0"' |
493972c8 BB |
235 | RPM_DEFINE_DKMS= |
236 | ||
237 | SRPM_DEFINE_COMMON='--define "build_src_rpm 1"' | |
238 | SRPM_DEFINE_UTIL= | |
239 | SRPM_DEFINE_KMOD= | |
240 | SRPM_DEFINE_DKMS= | |
241 | ||
242 | RPM_SPEC_DIR="rpm/generic" | |
243 | AC_ARG_WITH([spec], | |
244 | AS_HELP_STRING([--with-spec=SPEC], | |
10946b02 | 245 | [Spec files 'generic|redhat']), |
493972c8 BB |
246 | [RPM_SPEC_DIR="rpm/$withval"]) |
247 | ||
248 | AC_MSG_CHECKING([whether spec files are available]) | |
249 | AC_MSG_RESULT([yes ($RPM_SPEC_DIR/*.spec.in)]) | |
250 | ||
287b2fb1 BB |
251 | AC_SUBST(HAVE_RPM) |
252 | AC_SUBST(RPM) | |
253 | AC_SUBST(RPM_VERSION) | |
254 | ||
255 | AC_SUBST(HAVE_RPMBUILD) | |
256 | AC_SUBST(RPMBUILD) | |
257 | AC_SUBST(RPMBUILD_VERSION) | |
493972c8 BB |
258 | |
259 | AC_SUBST(RPM_SPEC_DIR) | |
260 | AC_SUBST(RPM_DEFINE_UTIL) | |
261 | AC_SUBST(RPM_DEFINE_KMOD) | |
262 | AC_SUBST(RPM_DEFINE_DKMS) | |
263 | AC_SUBST(RPM_DEFINE_COMMON) | |
264 | AC_SUBST(SRPM_DEFINE_UTIL) | |
265 | AC_SUBST(SRPM_DEFINE_KMOD) | |
266 | AC_SUBST(SRPM_DEFINE_DKMS) | |
267 | AC_SUBST(SRPM_DEFINE_COMMON) | |
287b2fb1 BB |
268 | ]) |
269 | ||
270 | dnl # | |
271 | dnl # Check for dpkg+dpkg-buildpackage to build DEB packages. If these | |
272 | dnl # tools are missing it is non-fatal but you will not be able to build | |
273 | dnl # DEB packages and will be warned if you try too. | |
274 | dnl # | |
275 | AC_DEFUN([SPL_AC_DPKG], [ | |
276 | DPKG=dpkg | |
277 | DPKGBUILD=dpkg-buildpackage | |
278 | ||
279 | AC_MSG_CHECKING([whether $DPKG is available]) | |
280 | AS_IF([tmp=$($DPKG --version 2>/dev/null)], [ | |
281 | DPKG_VERSION=$(echo $tmp | $AWK '/Debian/ { print $[7] }') | |
282 | HAVE_DPKG=yes | |
283 | AC_MSG_RESULT([$HAVE_DPKG ($DPKG_VERSION)]) | |
284 | ],[ | |
285 | HAVE_DPKG=no | |
286 | AC_MSG_RESULT([$HAVE_DPKG]) | |
287 | ]) | |
288 | ||
289 | AC_MSG_CHECKING([whether $DPKGBUILD is available]) | |
290 | AS_IF([tmp=$($DPKGBUILD --version 2>/dev/null)], [ | |
291 | DPKGBUILD_VERSION=$(echo $tmp | \ | |
292 | $AWK '/Debian/ { print $[4] }' | cut -f-4 -d'.') | |
293 | HAVE_DPKGBUILD=yes | |
294 | AC_MSG_RESULT([$HAVE_DPKGBUILD ($DPKGBUILD_VERSION)]) | |
295 | ],[ | |
296 | HAVE_DPKGBUILD=no | |
297 | AC_MSG_RESULT([$HAVE_DPKGBUILD]) | |
298 | ]) | |
299 | ||
300 | AC_SUBST(HAVE_DPKG) | |
301 | AC_SUBST(DPKG) | |
302 | AC_SUBST(DPKG_VERSION) | |
303 | ||
304 | AC_SUBST(HAVE_DPKGBUILD) | |
305 | AC_SUBST(DPKGBUILD) | |
306 | AC_SUBST(DPKGBUILD_VERSION) | |
307 | ]) | |
308 | ||
309 | dnl # | |
310 | dnl # Until native packaging for various different packing systems | |
311 | dnl # can be added the least we can do is attempt to use alien to | |
312 | dnl # convert the RPM packages to the needed package type. This is | |
313 | dnl # a hack but so far it has worked reasonable well. | |
314 | dnl # | |
315 | AC_DEFUN([SPL_AC_ALIEN], [ | |
316 | ALIEN=alien | |
317 | ||
318 | AC_MSG_CHECKING([whether $ALIEN is available]) | |
319 | AS_IF([tmp=$($ALIEN --version 2>/dev/null)], [ | |
320 | ALIEN_VERSION=$(echo $tmp | $AWK '{ print $[3] }') | |
321 | HAVE_ALIEN=yes | |
322 | AC_MSG_RESULT([$HAVE_ALIEN ($ALIEN_VERSION)]) | |
323 | ],[ | |
324 | HAVE_ALIEN=no | |
325 | AC_MSG_RESULT([$HAVE_ALIEN]) | |
326 | ]) | |
327 | ||
328 | AC_SUBST(HAVE_ALIEN) | |
329 | AC_SUBST(ALIEN) | |
330 | AC_SUBST(ALIEN_VERSION) | |
331 | ]) | |
332 | ||
333 | dnl # | |
334 | dnl # Using the VENDOR tag from config.guess set the default | |
335 | dnl # package type for 'make pkg': (rpm | deb | tgz) | |
336 | dnl # | |
337 | AC_DEFUN([SPL_AC_DEFAULT_PACKAGE], [ | |
73fc084e | 338 | AC_MSG_CHECKING([linux distribution]) |
a3a69b74 BB |
339 | if test -f /etc/toss-release ; then |
340 | VENDOR=toss ; | |
73fc084e BB |
341 | elif test -f /etc/fedora-release ; then |
342 | VENDOR=fedora ; | |
a3a69b74 BB |
343 | elif test -f /etc/redhat-release ; then |
344 | VENDOR=redhat ; | |
345 | elif test -f /etc/gentoo-release ; then | |
346 | VENDOR=gentoo ; | |
cd2817f8 PS |
347 | elif test -f /etc/arch-release ; then |
348 | VENDOR=arch ; | |
73fc084e BB |
349 | elif test -f /etc/SuSE-release ; then |
350 | VENDOR=sles ; | |
351 | elif test -f /etc/slackware-version ; then | |
352 | VENDOR=slackware ; | |
a3a69b74 BB |
353 | elif test -f /etc/lunar.release ; then |
354 | VENDOR=lunar ; | |
355 | elif test -f /etc/lsb-release ; then | |
356 | VENDOR=ubuntu ; | |
357 | elif test -f /etc/debian_version ; then | |
358 | VENDOR=debian ; | |
73fc084e BB |
359 | else |
360 | VENDOR= ; | |
361 | fi | |
362 | AC_MSG_RESULT([$VENDOR]) | |
363 | AC_SUBST(VENDOR) | |
287b2fb1 BB |
364 | |
365 | AC_MSG_CHECKING([default package type]) | |
366 | case "$VENDOR" in | |
a3a69b74 BB |
367 | toss) DEFAULT_PACKAGE=rpm ;; |
368 | redhat) DEFAULT_PACKAGE=rpm ;; | |
369 | fedora) DEFAULT_PACKAGE=rpm ;; | |
370 | gentoo) DEFAULT_PACKAGE=tgz ;; | |
5f0a4b08 | 371 | arch) DEFAULT_PACKAGE=tgz ;; |
a3a69b74 BB |
372 | sles) DEFAULT_PACKAGE=rpm ;; |
373 | slackware) DEFAULT_PACKAGE=tgz ;; | |
374 | lunar) DEFAULT_PACKAGE=tgz ;; | |
375 | ubuntu) DEFAULT_PACKAGE=deb ;; | |
376 | debian) DEFAULT_PACKAGE=deb ;; | |
377 | *) DEFAULT_PACKAGE=rpm ;; | |
287b2fb1 BB |
378 | esac |
379 | ||
380 | AC_MSG_RESULT([$DEFAULT_PACKAGE]) | |
381 | AC_SUBST(DEFAULT_PACKAGE) | |
382 | ]) | |
383 | ||
384 | dnl # | |
385 | dnl # Default SPL user configuration | |
386 | dnl # | |
387 | AC_DEFUN([SPL_AC_PACKAGE], [ | |
0b14b9f3 | 388 | SPL_AC_DEFAULT_PACKAGE |
287b2fb1 BB |
389 | SPL_AC_RPM |
390 | SPL_AC_DPKG | |
391 | SPL_AC_ALIEN | |
287b2fb1 BB |
392 | ]) |
393 | ||
6a1c3d41 | 394 | AC_DEFUN([SPL_AC_LICENSE], [ |
10946b02 AX |
395 | AC_MSG_CHECKING([spl author]) |
396 | AC_MSG_RESULT([$SPL_META_AUTHOR]) | |
397 | ||
86933a6e | 398 | AC_MSG_CHECKING([spl license]) |
10946b02 | 399 | AC_MSG_RESULT([$SPL_META_LICENSE]) |
86933a6e BB |
400 | ]) |
401 | ||
402 | AC_DEFUN([SPL_AC_CONFIG], [ | |
0408008b ED |
403 | SPL_CONFIG=all |
404 | AC_ARG_WITH([config], | |
405 | AS_HELP_STRING([--with-config=CONFIG], | |
406 | [Config file 'kernel|user|all|srpm']), | |
407 | [SPL_CONFIG="$withval"]) | |
408 | AC_ARG_ENABLE([linux-builtin], | |
409 | [AC_HELP_STRING([--enable-linux-builtin], | |
410 | [Configure for builtin in-tree kernel modules @<:@default=no@:>@])], | |
411 | [], | |
412 | [enable_linux_builtin=no]) | |
413 | ||
414 | AC_MSG_CHECKING([spl config]) | |
415 | AC_MSG_RESULT([$SPL_CONFIG]); | |
416 | AC_SUBST(SPL_CONFIG) | |
417 | ||
418 | case "$SPL_CONFIG" in | |
419 | kernel) SPL_AC_CONFIG_KERNEL ;; | |
420 | user) SPL_AC_CONFIG_USER ;; | |
421 | all) SPL_AC_CONFIG_KERNEL | |
422 | SPL_AC_CONFIG_USER ;; | |
c1541dfe | 423 | srpm) ;; |
0408008b ED |
424 | *) |
425 | AC_MSG_RESULT([Error!]) | |
426 | AC_MSG_ERROR([Bad value "$SPL_CONFIG" for --with-config, | |
427 | user kernel|user|all|srpm]) ;; | |
428 | esac | |
429 | ||
430 | AM_CONDITIONAL([CONFIG_USER], | |
431 | [test "$SPL_CONFIG" = user -o "$SPL_CONFIG" = all]) | |
432 | AM_CONDITIONAL([CONFIG_KERNEL], | |
433 | [test "$SPL_CONFIG" = kernel -o "$SPL_CONFIG" = all] && | |
434 | [test "x$enable_linux_builtin" != xyes ]) | |
6a1c3d41 | 435 | ]) |
436 | ||
055ffd98 BB |
437 | dnl # |
438 | dnl # Enable if the SPL should be compiled with internal debugging enabled. | |
439 | dnl # By default this support is disabled. | |
440 | dnl # | |
57d86234 | 441 | AC_DEFUN([SPL_AC_DEBUG], [ |
c950d148 | 442 | AC_MSG_CHECKING([whether debugging is enabled]) |
055ffd98 BB |
443 | AC_ARG_ENABLE([debug], |
444 | [AS_HELP_STRING([--enable-debug], | |
445 | [Enable generic debug support @<:@default=no@:>@])], | |
446 | [], | |
447 | [enable_debug=no]) | |
448 | ||
449 | AS_IF([test "x$enable_debug" = xyes], | |
c950d148 | 450 | [ |
c950d148 BB |
451 | KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG -Werror" |
452 | DEBUG_CFLAGS="-DDEBUG -Werror" | |
3c208a54 BB |
453 | DEBUG_SPL="_with_debug" |
454 | ], [ | |
c950d148 BB |
455 | KERNELCPPFLAGS="${KERNELCPPFLAGS} -DNDEBUG" |
456 | DEBUG_CFLAGS="-DNDEBUG" | |
3c208a54 | 457 | DEBUG_SPL="_without_debug" |
c950d148 | 458 | ]) |
055ffd98 | 459 | |
c950d148 | 460 | AC_SUBST(DEBUG_CFLAGS) |
3c208a54 | 461 | AC_SUBST(DEBUG_SPL) |
055ffd98 | 462 | AC_MSG_RESULT([$enable_debug]) |
57d86234 | 463 | ]) |
464 | ||
055ffd98 BB |
465 | dnl # |
466 | dnl # Enabled by default it provides a minimal level of memory tracking. | |
467 | dnl # A total count of bytes allocated is kept for each alloc and free. | |
468 | dnl # Then at module unload time a report to the console will be printed | |
f6188ddd | 469 | dnl # if memory was leaked. |
055ffd98 | 470 | dnl # |
57d86234 | 471 | AC_DEFUN([SPL_AC_DEBUG_KMEM], [ |
055ffd98 BB |
472 | AC_ARG_ENABLE([debug-kmem], |
473 | [AS_HELP_STRING([--enable-debug-kmem], | |
f6188ddd | 474 | [Enable basic kmem accounting @<:@default=no@:>@])], |
055ffd98 | 475 | [], |
f6188ddd | 476 | [enable_debug_kmem=no]) |
57d86234 | 477 | |
055ffd98 | 478 | AS_IF([test "x$enable_debug_kmem" = xyes], |
3c208a54 BB |
479 | [ |
480 | KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_KMEM" | |
481 | DEBUG_KMEM="_with_debug_kmem" | |
482 | AC_DEFINE([DEBUG_KMEM], [1], | |
055ffd98 | 483 | [Define to 1 to enable basic kmem accounting]) |
3c208a54 BB |
484 | ], [ |
485 | DEBUG_KMEM="_without_debug_kmem" | |
486 | ]) | |
055ffd98 | 487 | |
3c208a54 | 488 | AC_SUBST(DEBUG_KMEM) |
055ffd98 BB |
489 | AC_MSG_CHECKING([whether basic kmem accounting is enabled]) |
490 | AC_MSG_RESULT([$enable_debug_kmem]) | |
57d86234 | 491 | ]) |
492 | ||
055ffd98 BB |
493 | dnl # |
494 | dnl # Disabled by default it provides detailed memory tracking. This | |
495 | dnl # feature also requires --enable-debug-kmem to be set. When enabled | |
496 | dnl # not only will total bytes be tracked but also the location of every | |
497 | dnl # alloc and free. When the SPL module is unloaded a list of all leaked | |
498 | dnl # addresses and where they were allocated will be dumped to the console. | |
499 | dnl # Enabling this feature has a significant impact on performance but it | |
500 | dnl # makes finding memory leaks pretty straight forward. | |
501 | dnl # | |
502 | AC_DEFUN([SPL_AC_DEBUG_KMEM_TRACKING], [ | |
503 | AC_ARG_ENABLE([debug-kmem-tracking], | |
504 | [AS_HELP_STRING([--enable-debug-kmem-tracking], | |
505 | [Enable detailed kmem tracking @<:@default=no@:>@])], | |
506 | [], | |
507 | [enable_debug_kmem_tracking=no]) | |
508 | ||
509 | AS_IF([test "x$enable_debug_kmem_tracking" = xyes], | |
3c208a54 BB |
510 | [ |
511 | KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_KMEM_TRACKING" | |
512 | DEBUG_KMEM_TRACKING="_with_debug_kmem_tracking" | |
513 | AC_DEFINE([DEBUG_KMEM_TRACKING], [1], | |
055ffd98 | 514 | [Define to 1 to enable detailed kmem tracking]) |
3c208a54 BB |
515 | ], [ |
516 | DEBUG_KMEM_TRACKING="_without_debug_kmem_tracking" | |
517 | ]) | |
055ffd98 | 518 | |
3c208a54 | 519 | AC_SUBST(DEBUG_KMEM_TRACKING) |
055ffd98 BB |
520 | AC_MSG_CHECKING([whether detailed kmem tracking is enabled]) |
521 | AC_MSG_RESULT([$enable_debug_kmem_tracking]) | |
57d86234 | 522 | ]) |
523 | ||
524 | dnl # | |
525 | dnl # SPL_LINUX_CONFTEST | |
526 | dnl # | |
527 | AC_DEFUN([SPL_LINUX_CONFTEST], [ | |
dbe561d8 | 528 | cat confdefs.h - <<_ACEOF >conftest.c |
57d86234 | 529 | $1 |
530 | _ACEOF | |
531 | ]) | |
532 | ||
533 | dnl # | |
534 | dnl # SPL_LANG_PROGRAM(C)([PROLOGUE], [BODY]) | |
535 | dnl # | |
536 | m4_define([SPL_LANG_PROGRAM], [ | |
537 | $1 | |
538 | int | |
539 | main (void) | |
540 | { | |
541 | dnl Do *not* indent the following line: there may be CPP directives. | |
542 | dnl Don't move the `;' right after for the same reason. | |
543 | $2 | |
544 | ; | |
545 | return 0; | |
546 | } | |
547 | ]) | |
548 | ||
549 | dnl # | |
550 | dnl # SPL_LINUX_COMPILE_IFELSE / like AC_COMPILE_IFELSE | |
551 | dnl # | |
552 | AC_DEFUN([SPL_LINUX_COMPILE_IFELSE], [ | |
c5f70460 | 553 | m4_ifvaln([$1], [SPL_LINUX_CONFTEST([$1])]) |
df7cc5bc | 554 | rm -Rf build && mkdir -p build && touch build/conftest.mod.c |
c5f70460 | 555 | echo "obj-m := conftest.o" >build/Makefile |
df7cc5bc ED |
556 | modpost_flag='' |
557 | test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage | |
c5f70460 | 558 | AS_IF( |
df7cc5bc ED |
559 | [AC_TRY_COMMAND(cp conftest.c build && make [$2] -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag) >/dev/null && AC_TRY_COMMAND([$3])], |
560 | [$4], | |
561 | [_AC_MSG_LOG_CONFTEST m4_ifvaln([$5],[$5])] | |
c5f70460 BB |
562 | ) |
563 | rm -Rf build | |
57d86234 | 564 | ]) |
565 | ||
566 | dnl # | |
567 | dnl # SPL_LINUX_TRY_COMPILE like AC_TRY_COMPILE | |
568 | dnl # | |
569 | AC_DEFUN([SPL_LINUX_TRY_COMPILE], | |
570 | [SPL_LINUX_COMPILE_IFELSE( | |
d50bd9e2 | 571 | [AC_LANG_SOURCE([SPL_LANG_PROGRAM([[$1]], [[$2]])])], |
572 | [modules], | |
573 | [test -s build/conftest.o], | |
574 | [$3], [$4]) | |
57d86234 | 575 | ]) |
576 | ||
57d86234 | 577 | dnl # |
578 | dnl # SPL_CHECK_SYMBOL_EXPORT | |
579 | dnl # check symbol exported or not | |
580 | dnl # | |
723aa3b0 | 581 | AC_DEFUN([SPL_CHECK_SYMBOL_EXPORT], [ |
2e0e7e69 BB |
582 | grep -q -E '[[[:space:]]]$1[[[:space:]]]' \ |
583 | $LINUX_OBJ/Module*.symvers 2>/dev/null | |
57d86234 | 584 | rc=$? |
585 | if test $rc -ne 0; then | |
586 | export=0 | |
587 | for file in $2; do | |
2e0e7e69 BB |
588 | grep -q -E "EXPORT_SYMBOL.*($1)" \ |
589 | "$LINUX_OBJ/$file" 2>/dev/null | |
57d86234 | 590 | rc=$? |
723aa3b0 ED |
591 | if test $rc -eq 0; then |
592 | export=1 | |
593 | break; | |
594 | fi | |
57d86234 | 595 | done |
723aa3b0 | 596 | if test $export -eq 0; then : |
57d86234 | 597 | $4 |
723aa3b0 | 598 | else : |
57d86234 | 599 | $3 |
600 | fi | |
723aa3b0 | 601 | else : |
57d86234 | 602 | $3 |
603 | fi | |
604 | ]) | |
605 | ||
723aa3b0 ED |
606 | dnl # |
607 | dnl # SPL_LINUX_TRY_COMPILE_SYMBOL | |
608 | dnl # like SPL_LINUX_TRY_COMPILE, except SPL_CHECK_SYMBOL_EXPORT | |
609 | dnl # is called if not compiling for builtin | |
610 | dnl # | |
611 | AC_DEFUN([SPL_LINUX_TRY_COMPILE_SYMBOL], [ | |
612 | SPL_LINUX_TRY_COMPILE([$1], [$2], [rc=0], [rc=1]) | |
613 | if test $rc -ne 0; then : | |
614 | $6 | |
615 | else | |
616 | if test "x$enable_linux_builtin" != xyes; then | |
617 | SPL_CHECK_SYMBOL_EXPORT([$3], [$4], [rc=0], [rc=1]) | |
618 | fi | |
619 | if test $rc -ne 0; then : | |
620 | $6 | |
621 | else : | |
622 | $5 | |
623 | fi | |
624 | fi | |
625 | ]) | |
626 | ||
12ff95ff BB |
627 | dnl # |
628 | dnl # SPL_CHECK_SYMBOL_HEADER | |
629 | dnl # check if a symbol prototype is defined in listed headers. | |
630 | dnl # | |
631 | AC_DEFUN([SPL_CHECK_SYMBOL_HEADER], [ | |
632 | AC_MSG_CHECKING([whether symbol $1 exists in header]) | |
633 | header=0 | |
634 | for file in $3; do | |
635 | grep -q "$2" "$LINUX/$file" 2>/dev/null | |
636 | rc=$? | |
723aa3b0 ED |
637 | if test $rc -eq 0; then |
638 | header=1 | |
639 | break; | |
640 | fi | |
12ff95ff BB |
641 | done |
642 | if test $header -eq 0; then | |
643 | AC_MSG_RESULT([no]) | |
644 | $5 | |
645 | else | |
646 | AC_MSG_RESULT([yes]) | |
647 | $4 | |
648 | fi | |
649 | ]) | |
650 | ||
86de8532 | 651 | dnl # |
652 | dnl # SPL_CHECK_HEADER | |
653 | dnl # check whether header exists and define HAVE_$2_HEADER | |
654 | dnl # | |
655 | AC_DEFUN([SPL_CHECK_HEADER], | |
656 | [AC_MSG_CHECKING([whether header $1 exists]) | |
657 | SPL_LINUX_TRY_COMPILE([ | |
d50bd9e2 | 658 | #include <$1> |
86de8532 | 659 | ],[ |
660 | return 0; | |
661 | ],[ | |
662 | AC_DEFINE(HAVE_$2_HEADER, 1, [$1 exists]) | |
663 | AC_MSG_RESULT(yes) | |
664 | $3 | |
665 | ],[ | |
666 | AC_MSG_RESULT(no) | |
667 | $4 | |
668 | ]) | |
669 | ]) | |
6a6cafbe | 670 | |
0408008b | 671 | dnl # |
10946b02 AX |
672 | dnl # Basic toolchain sanity check. Verify that kernel modules can |
673 | dnl # be built and which symbols can be used. | |
0408008b ED |
674 | dnl # |
675 | AC_DEFUN([SPL_AC_TEST_MODULE], | |
676 | [AC_MSG_CHECKING([whether modules can be built]) | |
677 | SPL_LINUX_TRY_COMPILE([],[],[ | |
678 | AC_MSG_RESULT([yes]) | |
679 | ],[ | |
680 | AC_MSG_RESULT([no]) | |
681 | if test "x$enable_linux_builtin" != xyes; then | |
682 | AC_MSG_ERROR([*** Unable to build an empty module.]) | |
683 | else | |
684 | AC_MSG_ERROR([ | |
685 | *** Unable to build an empty module. | |
686 | *** Please run 'make scripts' inside the kernel source tree.]) | |
687 | fi | |
688 | ]) | |
10946b02 | 689 | |
879bbbc7 AX |
690 | AS_IF([test "x$cross_compiling" != xyes], [ |
691 | AC_RUN_IFELSE([ | |
692 | AC_LANG_PROGRAM([ | |
693 | #include "$LINUX/include/linux/license.h" | |
694 | ], [ | |
695 | return !license_is_gpl_compatible( | |
696 | "$SPL_META_LICENSE"); | |
697 | ]) | |
698 | ], [ | |
699 | AC_DEFINE([SPL_IS_GPL_COMPATIBLE], [1], | |
700 | [Define to 1 if GPL-only symbols can be used]) | |
10946b02 | 701 | ], [ |
10946b02 | 702 | ]) |
10946b02 | 703 | ]) |
0408008b ED |
704 | ]) |
705 | ||
57d86234 | 706 | dnl # |
d04c8a56 BB |
707 | dnl # Use the atomic implemenation based on global spinlocks. This |
708 | dnl # should only be needed by 32-bit kernels which do not provide | |
709 | dnl # the atomic64_* API. It may be optionally enabled as a fallback | |
710 | dnl # if problems are observed with the direct mapping to the native | |
711 | dnl # Linux atomic operations. You may not disable atomic spinlocks | |
712 | dnl # if you kernel does not an atomic64_* API. | |
57d86234 | 713 | dnl # |
d04c8a56 BB |
714 | AC_DEFUN([SPL_AC_ATOMIC_SPINLOCK], [ |
715 | AC_ARG_ENABLE([atomic-spinlocks], | |
716 | [AS_HELP_STRING([--enable-atomic-spinlocks], | |
717 | [Atomic types use spinlocks @<:@default=check@:>@])], | |
718 | [], | |
719 | [enable_atomic_spinlocks=check]) | |
57d86234 | 720 | |
a0f6da3d | 721 | SPL_LINUX_TRY_COMPILE([ |
dd3678fc | 722 | #include <linux/fs.h> |
a0f6da3d | 723 | ],[ |
03318641 | 724 | atomic64_t *ptr __attribute__ ((unused)); |
a0f6da3d | 725 | ],[ |
d04c8a56 | 726 | have_atomic64_t=yes |
a0f6da3d | 727 | AC_DEFINE(HAVE_ATOMIC64_T, 1, |
d04c8a56 | 728 | [kernel defines atomic64_t]) |
a0f6da3d | 729 | ],[ |
d04c8a56 BB |
730 | have_atomic64_t=no |
731 | ]) | |
732 | ||
733 | AS_IF([test "x$enable_atomic_spinlocks" = xcheck], [ | |
734 | AS_IF([test "x$have_atomic64_t" = xyes], [ | |
735 | enable_atomic_spinlocks=no | |
736 | ],[ | |
737 | enable_atomic_spinlocks=yes | |
738 | ]) | |
a0f6da3d | 739 | ]) |
d04c8a56 BB |
740 | |
741 | AS_IF([test "x$enable_atomic_spinlocks" = xyes], [ | |
742 | AC_DEFINE([ATOMIC_SPINLOCK], [1], | |
743 | [Atomic types use spinlocks]) | |
744 | ],[ | |
745 | AS_IF([test "x$have_atomic64_t" = xno], [ | |
746 | AC_MSG_FAILURE( | |
747 | [--disable-atomic-spinlocks given but required atomic64 support is unavailable]) | |
748 | ]) | |
749 | ]) | |
750 | ||
751 | AC_MSG_CHECKING([whether atomic types use spinlocks]) | |
10946b02 AX |
752 | AC_MSG_RESULT([$enable_atomic_spinlocks]) |
753 | ||
754 | AC_MSG_CHECKING([whether kernel defines atomic64_t]) | |
755 | AC_MSG_RESULT([$have_atomic64_t]) | |
6ae7fef5 | 756 | ]) |