4 # whether to enable various libcfs debugs (CDEBUG, ENTRY/EXIT, LASSERT, etc.)
6 AC_DEFUN([LIBCFS_CONFIG_CDEBUG], [
7 AC_MSG_CHECKING([whether to enable CDEBUG, CWARN])
8 AC_ARG_ENABLE([libcfs_cdebug],
9 AC_HELP_STRING([--disable-libcfs-cdebug],
10 [disable libcfs CDEBUG, CWARN]),
11 [], [enable_libcfs_cdebug="yes"])
12 AC_MSG_RESULT([$enable_libcfs_cdebug])
13 AS_IF([test "x$enable_libcfs_cdebug" = xyes],
14 [AC_DEFINE(CDEBUG_ENABLED, 1, [enable libcfs CDEBUG, CWARN])])
16 AC_MSG_CHECKING([whether to enable ENTRY/EXIT])
17 AC_ARG_ENABLE([libcfs_trace],
18 AC_HELP_STRING([--disable-libcfs-trace],
19 [disable libcfs ENTRY/EXIT]),
20 [], [enable_libcfs_trace="yes"])
21 AC_MSG_RESULT([$enable_libcfs_trace])
22 AS_IF([test "x$enable_libcfs_trace" = xyes],
23 [AC_DEFINE(CDEBUG_ENTRY_EXIT, 1, [enable libcfs ENTRY/EXIT])])
25 AC_MSG_CHECKING([whether to enable LASSERT, LASSERTF])
26 AC_ARG_ENABLE([libcfs_assert],
27 AC_HELP_STRING([--disable-libcfs-assert],
28 [disable libcfs LASSERT, LASSERTF]),
29 [], [enable_libcfs_assert="yes"])
30 AC_MSG_RESULT([$enable_libcfs_assert])
31 AS_IF([test x$enable_libcfs_assert = xyes],
32 [AC_DEFINE(LIBCFS_DEBUG, 1, [enable libcfs LASSERT, LASSERTF])])
33 ]) # LIBCFS_CONFIG_CDEBUG
36 # LIBCFS_CONFIG_PANIC_DUMPLOG
38 # check if tunable panic_dumplog is wanted
40 AC_DEFUN([LIBCFS_CONFIG_PANIC_DUMPLOG], [
41 AC_MSG_CHECKING([whether to use tunable 'panic_dumplog' support])
42 AC_ARG_ENABLE([panic_dumplog],
43 AC_HELP_STRING([--enable-panic_dumplog],
44 [enable panic_dumplog]),
45 [], [enable_panic_dumplog="no"])
46 AC_MSG_RESULT([$enable_panic_dumplog])
47 AS_IF([test "x$enable_panic_dumplog" = xyes],
48 [AC_DEFINE(LNET_DUMP_ON_PANIC, 1, [use dumplog on panic])])
49 ]) # LIBCFS_CONFIG_PANIC_DUMPLOG
52 # Kernel version 3.11 introduced ktime_get_ts64
54 AC_DEFUN([LIBCFS_KTIME_GET_TS64],[
55 LB_CHECK_COMPILE([does function 'ktime_get_ts64' exist],
57 #include <linux/hrtimer.h>
58 #include <linux/ktime.h>
60 struct timespec64 *ts = NULL;
64 AC_DEFINE(HAVE_KTIME_GET_TS64, 1,
65 ['ktime_get_ts64' is available])
67 ]) # LIBCFS_KTIME_GET_TS64
70 # Kernel version 3.12-rc4 commit c2d816443ef30 added prepare_to_wait_event()
72 AC_DEFUN([LIBCFS_PREPARE_TO_WAIT_EVENT],[
73 LB_CHECK_COMPILE([does function 'prepare_to_wait_event' exist],
74 prepare_to_wait_event, [
75 #include <linux/wait.h>
77 prepare_to_wait_event(NULL, NULL, 0);
79 AC_DEFINE(HAVE_PREPARE_TO_WAIT_EVENT, 1,
80 ['prepare_to_wait_event' is available])
82 ]) # LIBCFS_PREPARE_TO_WAIT_EVENT
85 # Linux kernel 3.12 introduced struct kernel_param_ops
86 # This has been backported to all lustre supported
87 # clients except RHEL6. We have to handle the differences.
89 AC_DEFUN([LIBCFS_KERNEL_PARAM_OPS],[
90 LB_CHECK_COMPILE([does 'struct kernel_param_ops' exist],
92 #include <linux/module.h>
94 struct kernel_param_ops ops;
98 AC_DEFINE(HAVE_KERNEL_PARAM_OPS, 1,
99 ['struct kernel_param_ops' is available])
101 ]) # LIBCFS_KERNEL_PARAM_OPS
104 # Kernel version 3.12 introduced ktime_add
106 AC_DEFUN([LIBCFS_KTIME_ADD],[
107 LB_CHECK_COMPILE([does function 'ktime_add' exist],
109 #include <linux/hrtimer.h>
110 #include <linux/ktime.h>
112 ktime_t start = ktime_set(0, 0);
116 total = ktime_add(start, end);
118 AC_DEFINE(HAVE_KTIME_ADD, 1,
119 [ktime_add is available])
121 ]) # LIBCFS_KTIME_ADD
124 # Kernel version 3.12 introduced ktime_after
126 AC_DEFUN([LIBCFS_KTIME_AFTER],[
127 LB_CHECK_COMPILE([does function 'ktime_after' exist],
129 #include <linux/hrtimer.h>
130 #include <linux/ktime.h>
132 ktime_t start = ktime_set(0, 0);
135 ktime_after(start, end);
137 AC_DEFINE(HAVE_KTIME_AFTER, 1,
138 [ktime_after is available])
140 ]) # LIBCFS_KTIME_AFTER
143 # Kernel version 3.12 introduced ktime_before
144 # See linux commit 67cb9366ff5f99868100198efba5ca88aaa6ad25
146 AC_DEFUN([LIBCFS_KTIME_BEFORE],[
147 LB_CHECK_COMPILE([does function 'ktime_before' exist],
149 #include <linux/hrtimer.h>
150 #include <linux/ktime.h>
152 ktime_t start = ktime_set(0, 0);
155 ktime_before(start, end);
157 AC_DEFINE(HAVE_KTIME_BEFORE, 1,
158 [ktime_before is available])
160 ]) # LIBCFS_KTIME_BEFORE
163 # Kernel version 3.12 introduced ktime_compare
165 AC_DEFUN([LIBCFS_KTIME_COMPARE],[
166 LB_CHECK_COMPILE([does function 'ktime_compare' exist],
168 #include <linux/hrtimer.h>
169 #include <linux/ktime.h>
171 ktime_t start = ktime_set(0, 0);
174 ktime_compare(start, end);
176 AC_DEFINE(HAVE_KTIME_COMPARE, 1,
177 [ktime_compare is available])
179 ]) # LIBCFS_KTIME_COMPARE
182 # FC19 3.12 kernel struct shrinker change
184 AC_DEFUN([LIBCFS_SHRINKER_COUNT],[
185 LB_CHECK_COMPILE([shrinker has 'count_objects'],
186 shrinker_count_objects, [
187 #include <linux/mmzone.h>
188 #include <linux/shrinker.h>
190 struct shrinker shrinker;
192 shrinker.count_objects = NULL;
194 AC_DEFINE(HAVE_SHRINKER_COUNT, 1,
195 [shrinker has count_objects member])
197 ]) # LIBCFS_SHRINKER_COUNT
200 # LIBCFS_IOV_ITER_HAS_TYPE
202 # kernel 3.15-rc4 commit 71d8e532b1549a478e6a6a8a44f309d050294d00
203 # start adding the tag to iov_iter
205 AC_DEFUN([LIBCFS_IOV_ITER_HAS_TYPE], [
206 tmp_flags="$EXTRA_KCFLAGS"
207 EXTRA_KCFLAGS="-Werror"
208 LB_CHECK_COMPILE([if iov_iter has member type],
209 iov_iter_has_type_member, [
210 #include <linux/uio.h>
212 struct iov_iter iter = { .type = ITER_KVEC };
215 AC_DEFINE(HAVE_IOV_ITER_HAS_TYPE_MEMBER, 1,
216 [if iov_iter has member type])
218 EXTRA_KCFLAGS="$tmp_flags"
219 ]) # LIBCFS_IOV_ITER_HAS_TYPE
222 # Kernel version 3.17 changed hlist_add_after to
225 AC_DEFUN([LIBCFS_HLIST_ADD_AFTER],[
226 LB_CHECK_COMPILE([does function 'hlist_add_after' exist],
228 #include <linux/list.h>
230 hlist_add_after(NULL, NULL);
232 AC_DEFINE(HAVE_HLIST_ADD_AFTER, 1,
233 [hlist_add_after is available])
235 ]) # LIBCFS_HLIST_ADD_AFTER
238 # Kernel version 3.17 introduced struct timespec64
240 AC_DEFUN([LIBCFS_TIMESPEC64],[
241 LB_CHECK_COMPILE([does 'struct timespec64' exist],
243 #include <linux/time.h>
245 struct timespec64 ts;
250 AC_DEFINE(HAVE_TIMESPEC64, 1,
251 ['struct timespec64' is available])
253 ]) # LIBCFS_TIMESPEC64
256 # Kernel version 3.17 introduced ktime_get_real_ts64
258 AC_DEFUN([LIBCFS_KTIME_GET_REAL_TS64],[
259 LB_CHECK_COMPILE([does function 'ktime_get_real_ts64' exist],
260 ktime_get_real_ts64, [
261 #include <linux/ktime.h>
263 struct timespec64 *ts = NULL;
265 ktime_get_real_ts64(ts);
267 AC_DEFINE(HAVE_KTIME_GET_REAL_TS64, 1,
268 ['ktime_get_real_ts64' is available])
270 ]) # LIBCFS_KTIME_GET_REAL_TS64
273 # Kernel version 3.17 introduced ktime_get_real_seconds
275 AC_DEFUN([LIBCFS_KTIME_GET_REAL_SECONDS],[
276 LB_CHECK_COMPILE([does function 'ktime_get_real_seconds' exist],
277 ktime_get_real_seconds, [
278 #include <linux/hrtimer.h>
279 #include <linux/ktime.h>
283 now = ktime_get_real_seconds();
285 AC_DEFINE(HAVE_KTIME_GET_REAL_SECONDS, 1,
286 ['ktime_get_real_seconds' is available])
288 ]) # LIBCFS_KTIME_GET_REAL_SECONDS
291 # Kernel version 3.17 created ktime_get_ns wrapper
293 AC_DEFUN([LIBCFS_KTIME_GET_NS],[
294 LB_CHECK_COMPILE([does function 'ktime_get_ns' exist],
296 #include <linux/hrtimer.h>
297 #include <linux/ktime.h>
301 nanoseconds = ktime_get_ns();
303 AC_DEFINE(NEED_KTIME_GET_NS, 1,
304 ['ktime_get_ns' is not available])
306 ]) # LIBCFS_KTIME_GET_NS
309 # Kernel version 3.17 created ktime_get_real_ns wrapper
311 AC_DEFUN([LIBCFS_KTIME_GET_REAL_NS],[
312 LB_CHECK_COMPILE([does function 'ktime_get_real_ns' exist],
314 #include <linux/hrtimer.h>
315 #include <linux/ktime.h>
319 nanoseconds = ktime_get_real_ns();
321 AC_DEFINE(NEED_KTIME_GET_REAL_NS, 1,
322 ['ktime_get_real_ns' is not available])
324 ]) # LIBCFS_KTIME_GET_REAL_NS
327 # Kernel version 3.17 introduced ktime_to_timespec64
329 AC_DEFUN([LIBCFS_KTIME_TO_TIMESPEC64],[
330 LB_CHECK_COMPILE([does function 'ktime_to_timespec64' exist],
331 ktime_to_timespec64, [
332 #include <linux/hrtimer.h>
333 #include <linux/ktime.h>
335 ktime_t now = ktime_set(0, 0);
336 struct timespec64 ts;
338 ts = ktime_to_timespec64(now);
340 AC_DEFINE(HAVE_KTIME_TO_TIMESPEC64, 1,
341 ['ktime_to_timespec64' is available])
343 ]) # LIBCFS_KTIME_TO_TIMESPEC64
346 # Kernel version 3.17 introduced timespec64_sub
348 AC_DEFUN([LIBCFS_TIMESPEC64_SUB],[
349 LB_CHECK_COMPILE([does function 'timespec64_sub' exist],
351 #include <linux/time.h>
353 struct timespec64 later = { }, earlier = { }, diff;
355 diff = timespec64_sub(later, earlier);
357 AC_DEFINE(HAVE_TIMESPEC64_SUB, 1,
358 ['timespec64_sub' is available])
360 ]) # LIBCFS_TIMESPEC64_SUB
363 # Kernel version 3.17 introduced timespec64_to_ktime
365 AC_DEFUN([LIBCFS_TIMESPEC64_TO_KTIME],[
366 LB_CHECK_COMPILE([does function 'timespec64_to_ktime' exist],
367 timespec64_to_ktime, [
368 #include <linux/ktime.h>
370 struct timespec64 ts;
373 now = timespec64_to_ktime(ts);
375 AC_DEFINE(HAVE_TIMESPEC64_TO_KTIME, 1,
376 ['timespec64_to_ktime' is available])
378 ]) # LIBCFS_TIMESPEC64_TO_KTIME
381 # Kernel version 3.19 introduced ktime_get_seconds
383 AC_DEFUN([LIBCFS_KTIME_GET_SECONDS],[
384 LB_CHECK_COMPILE([does function 'ktime_get_seconds' exist],
386 #include <linux/ktime.h>
390 now = ktime_get_seconds();
392 AC_DEFINE(HAVE_KTIME_GET_SECONDS, 1,
393 ['ktime_get_seconds' is available])
395 ]) # LIBCFS_KTIME_GET_SECONDS
398 # Kernel version 4.0 commit 41fbf3b39d5eca01527338b4d0ee15ee1ae1023c
399 # introduced the helper function ktime_ms_delta.
401 AC_DEFUN([LIBCFS_KTIME_MS_DELTA],[
402 LB_CHECK_COMPILE([does function 'ktime_ms_delta' exist],
404 #include <linux/ktime.h>
406 ktime_t start = ktime_set(0, 0);
409 ktime_ms_delta(start, end);
411 AC_DEFINE(HAVE_KTIME_MS_DELTA, 1,
412 ['ktime_ms_delta' is available])
414 ]) # LIBCFS_KTIME_MS_DELTA
417 # Kernel version 4.1 commit b51d23e4e9fea6f264d39535c2a62d1f51e7ccc3
418 # create per module locks which added kernel_param_[un]lock(). Older
419 # kernels you have to use __kernel_param_[un]lock(). In that case its
420 # a global lock for all modules but that is okay since its a rare event.
422 AC_DEFUN([LIBCFS_KERNEL_PARAM_LOCK],[
423 LB_CHECK_COMPILE([does function 'kernel_param_[un]lock' exist],
425 #include <linux/moduleparam.h>
427 kernel_param_lock(NULL);
428 kernel_param_unlock(NULL);
430 AC_DEFINE(HAVE_KERNEL_PARAM_LOCK, 1,
431 ['kernel_param_[un]lock' is available])
433 ]) # LIBCFS_KERNEL_PARAM_LOCK
436 # Kernel version 4.2 changed topology_thread_cpumask
437 # to topology_sibling_cpumask
439 AC_DEFUN([LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK],[
440 LB_CHECK_COMPILE([does function 'topology_sibling_cpumask' exist],
441 topology_sibling_cpumask, [
442 #include <linux/topology.h>
444 const struct cpumask *mask;
446 mask = topology_sibling_cpumask(0);
448 AC_DEFINE(HAVE_TOPOLOGY_SIBLING_CPUMASK, 1,
449 [topology_sibling_cpumask is available])
451 ]) # LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK
454 # Kernel version 4.4 commit ef951599074ba4fad2d0efa0a977129b41e6d203
455 # introduced kstrtobool and kstrtobool_from_user.
457 AC_DEFUN([LIBCFS_KSTRTOBOOL_FROM_USER], [
458 LB_CHECK_COMPILE([if Linux kernel has 'kstrtobool_from_user'],
459 kstrtobool_from_user, [
460 #include <linux/kernel.h>
463 return kstrtobool_from_user(NULL, 0, &result);
465 AC_DEFINE(HAVE_KSTRTOBOOL_FROM_USER, 1,
466 [kernel has kstrtobool_from_user])
468 ]) # LIBCFS_KSTRTOBOOL_FROM_USER
471 # Kernel version 4.5-rc1 commit d12481bc58fba89427565f8592e88446ec084a24
472 # added crypto hash helpers
474 AC_DEFUN([LIBCFS_CRYPTO_HASH_HELPERS], [
475 LB_CHECK_COMPILE([does crypto hash helper functions exist],
476 crypto_hash_helpers, [
477 #include <crypto/hash.h>
479 crypto_ahash_alg_name(NULL);
480 crypto_ahash_driver_name(NULL);
482 AC_DEFINE(HAVE_CRYPTO_HASH_HELPERS, 1,
483 [crypto hash helper functions are available])
485 ]) # LIBCFS_CRYPTO_HASH_HELPERS
488 # Kernel version 4.5-rc1 commit 3502cad73c4bbf8f6365d539e814159275252c59
489 # introduced rhashtable_replace_fast
491 AC_DEFUN([LIBCFS_RHASHTABLE_REPLACE], [
492 LB_CHECK_COMPILE([if 'rhashtable_replace_fast' exists],
493 rhashtable_replace_fast, [
494 #include <linux/rhashtable.h>
496 const struct rhashtable_params params = { 0 };
498 rhashtable_replace_fast(NULL, NULL, NULL, params);
500 AC_DEFINE(HAVE_RHASHTABLE_REPLACE, 1,
501 [rhashtable_replace_fast() is available])
503 ]) # LIBCFS_RHASHTABLE_REPLACE
506 # Kernel version 4.5-rc3 commit 2fe829aca9d7bed5fd6b49c6a1452e5e486b6cc3dd
507 # made kset_find_obj() exportable to modules
509 AC_DEFUN([LIBCFS_EXPORT_KSET_FIND_OBJ], [
510 LB_CHECK_EXPORT([kset_find_obj], [lib/kobject.c],
511 [AC_DEFINE(HAVE_KSET_FIND_OBJ, 1,
512 [kset_find_obj is exported by the kernel])])
513 ]) # LIBCFS_EXPORT_KSET_FIND_OBJ
516 # Kernel version 4.6+ commit ef703f49a6c5b909a85149bb6625c4ed0d697186
517 # fixed the brokenness of hash_64(). The fix removed GOLDEN_RATIO_PRIME_64
518 # since it was a poor prime value.
520 AC_DEFUN([LIBCFS_BROKEN_HASH_64], [
521 LB_CHECK_COMPILE([kernel has fixed hash_64()],
523 #include <linux/hash.h>
525 int tmp = GOLDEN_RATIO_PRIME_64;
527 AC_DEFINE(HAVE_BROKEN_HASH_64, 1, [kernel hash_64() is broken])
529 ]) # LIBCFS_BROKEN_HASH_64
532 # LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
534 # linux 4.6 kernel changed stacktrace_ops address to return an int
536 AC_DEFUN([LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT], [
537 LB_CHECK_COMPILE([if 'struct stacktrace_ops' address function returns an int],
538 stacktrace_ops_address_return_int, [
539 #include <asm/stacktrace.h>
543 rc = ((struct stacktrace_ops *)0)->address(NULL, 0, 0);
545 AC_DEFINE(STACKTRACE_OPS_ADDRESS_RETURN_INT, 1,
546 ['struct stacktrace_ops' address function returns an int])
548 ]) # LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
551 # Kernel version 4.6 removed both struct task_struct and struct mm_struct
552 # arguments to get_user_pages
554 AC_DEFUN([LIBCFS_GET_USER_PAGES_6ARG], [
555 LB_CHECK_COMPILE([if 'get_user_pages()' takes 6 arguments],
556 get_user_pages_6arg, [
557 #include <linux/mm.h>
561 rc = get_user_pages(0, 0, 0, 0, NULL, NULL);
563 AC_DEFINE(HAVE_GET_USER_PAGES_6ARG, 1,
564 [get_user_pages takes 6 arguments])
566 ]) # LIBCFS_GET_USER_PAGES_6ARG
571 # 4.6 kernel created stringhash.h which moved stuff out of dcache.h
572 # commit f4bcbe792b8f434e32487cff9d9e30ab45a3ce02
574 AC_DEFUN([LIBCFS_STRINGHASH], [
575 LB_CHECK_LINUX_HEADER([linux/stringhash.h], [
576 AC_DEFINE(HAVE_STRINGHASH, 1,
577 [stringhash.h is present])])
578 ]) # LIBCFS_STRINGHASH
581 # LIBCFS_RHASHTABLE_INSERT_FAST
583 # 4.7+ kernel commit 5ca8cc5bf11faed257c762018aea9106d529232f
584 # changed __rhashtable_insert_fast to support the new function
585 # rhashtable_lookup_get_insert_key().
587 AC_DEFUN([LIBCFS_RHASHTABLE_INSERT_FAST], [
588 tmp_flags="$EXTRA_KCFLAGS"
589 EXTRA_KCFLAGS="-Werror"
590 LB_CHECK_COMPILE([if internal '__rhashtable_insert_fast()' returns int],
591 rhashtable_insert_fast, [
592 #include <linux/rhashtable.h>
594 const struct rhashtable_params params = { 0 };
597 rc = __rhashtable_insert_fast(NULL, NULL, NULL, params);
599 AC_DEFINE(HAVE_HASHTABLE_INSERT_FAST_RETURN_INT, 1,
600 ['__rhashtable_insert_fast()' returns int])
602 EXTRA_KCFLAGS="$tmp_flags"
603 ]) # LIBCFS_RHASHTABLE_INSERT_FAST
606 # Kernel version 4.7-rc1 commit 8f6fd83c6c5ec66a4a70c728535ddcdfef4f3697
607 # added 3rd arg to rhashtable_walk_init
609 AC_DEFUN([LIBCFS_RHASHTABLE_WALK_INIT_3ARG], [
610 LB_CHECK_COMPILE([if 'rhashtable_walk_init' has 3 args],
611 rhashtable_walk_init, [
612 #include <linux/gfp.h>
613 #include <linux/rhashtable.h>
615 rhashtable_walk_init(NULL, NULL, GFP_KERNEL);
617 AC_DEFINE(HAVE_3ARG_RHASHTABLE_WALK_INIT, 1,
618 [rhashtable_walk_init() has 3 args])
620 ]) # LIBCFS_RHASHTABLE_REPLACE
623 # Kernel version 4.8-rc6 commit ca26893f05e86497a86732768ec53cd38c0819ca
624 # introduced rhashtable_lookup
626 AC_DEFUN([LIBCFS_RHASHTABLE_LOOKUP], [
627 LB_CHECK_COMPILE([if 'rhashtable_lookup' exist],
629 #include <linux/rhashtable.h>
631 const struct rhashtable_params params = { 0 };
634 ret = rhashtable_lookup(NULL, NULL, params);
636 AC_DEFINE(HAVE_RHASHTABLE_LOOKUP, 1,
637 [rhashtable_lookup() is available])
639 ]) # LIBCFS_RHASHTABLE_LOOKUP
643 # Kernel version 4.8-rc6 commit ca26893f05e86497a86732768ec53cd38c0819ca
644 # created the rhlist interface to allow inserting duplicate objects
645 # into the same table.
647 AC_DEFUN([LIBCFS_RHLTABLE], [
648 LB_CHECK_COMPILE([does 'struct rhltable' exist],
650 #include <linux/rhashtable.h>
652 struct rhltable *hlt;
654 rhltable_destroy(hlt);
656 AC_DEFINE(HAVE_RHLTABLE, 1,
657 [struct rhltable exist])
662 # LIBCFS_STACKTRACE_OPS
664 # Kernel version 4.8 commit c8fe4609827aedc9c4b45de80e7cdc8ccfa8541b
665 # removed both struct stacktrace_ops and dump_trace() function
667 AC_DEFUN([LIBCFS_STACKTRACE_OPS], [
668 LB_CHECK_COMPILE([if 'struct stacktrace_ops' exists],
672 #include <asm/stacktrace.h>
674 struct stacktrace_ops ops;
677 AC_DEFINE(HAVE_STACKTRACE_OPS, 1,
678 [struct stacktrace_ops exists])
680 ]) # LIBCFS_STACKTRACE_OPS
683 # Kernel version 4.9-rc1 commit 246779dd090bd1b74d2652b3a6ca7759f593b27a
684 # introduced rhashtable_walk_enter
686 AC_DEFUN([LIBCFS_RHASHTABLE_WALK_ENTER], [
687 LB_CHECK_COMPILE([if 'rhashtable_walk_enter' exists],
688 rhashtable_walk_enter, [
689 #include <linux/rhashtable.h>
691 rhashtable_walk_enter(NULL, NULL);
693 AC_DEFINE(HAVE_RHASHTABLE_WALK_ENTER, 1,
694 [rhashtable_walk_enter() is available])
696 ]) # LIBCFS_RHASHTABLE_REPLACE
699 # Kernel version 4.9 commit 768ae309a96103ed02eb1e111e838c87854d8b51
700 # mm: replace get_user_pages() write/force parameters with gup_flags
702 AC_DEFUN([LIBCFS_GET_USER_PAGES_GUP_FLAGS], [
703 LB_CHECK_COMPILE([if 'get_user_pages()' takes gup_flags in arguments],
704 get_user_pages_gup_flags, [
705 #include <linux/mm.h>
708 rc = get_user_pages(0, 0, FOLL_WRITE, NULL, NULL);
710 AC_DEFINE(HAVE_GET_USER_PAGES_GUP_FLAGS, 1,
711 [get_user_pages takes gup_flags in arguments])
713 ]) # LIBCFS_GET_USER_PAGES_GUP_FLAGS
716 # Kernel version 4.10 commit 7b737965b33188bd3dbb44e938535c4006d97fbb
717 # libcfs: Convert to hotplug state machine
719 AC_DEFUN([LIBCFS_HOTPLUG_STATE_MACHINE], [
720 LB_CHECK_COMPILE([if libcfs supports CPU hotplug state machine],
721 cpu_hotplug_state_machine, [
722 #include <linux/cpuhotplug.h>
724 cpuhp_remove_state(CPUHP_LUSTRE_CFS_DEAD);
726 AC_DEFINE(HAVE_HOTPLUG_STATE_MACHINE, 1,
727 [hotplug state machine is supported])
729 ]) # LIBCFS_HOTPLUG_STATE_MACHINE
732 # Kernel version 4.10-rc3 commit f405df5de3170c00e5c54f8b7cf4766044a032ba
733 # introduced refcount_t which is atomic_t plus over flow guards.
735 AC_DEFUN([LIBCFS_REFCOUNT_T], [
736 LB_CHECK_LINUX_HEADER([linux/refcount.h], [
737 AC_DEFINE(HAVE_REFCOUNT_T, 1,
738 [refcount_t is supported])])
739 ]) # LIBCFS_REFCOUNT_T
742 # LIBCFS_SCHED_HEADERS
744 # 4.11 has broken up sched.h into more headers.
746 AC_DEFUN([LIBCFS_SCHED_HEADERS], [
747 LB_CHECK_LINUX_HEADER([linux/sched/signal.h], [
748 AC_DEFINE(HAVE_SCHED_HEADERS, 1,
749 [linux/sched header directory exist])])
750 ]) # LIBCFS_SCHED_HEADERS
753 # Kernel version 4.11-rc1 commit 2c935bc57221cc2edc787c72ea0e2d30cdcd3d5e
754 # introduce kref_read
756 AC_DEFUN([LIBCFS_KREF_READ], [
757 LB_CHECK_COMPILE([if 'kref_read' exists],
759 #include <linux/kref.h>
763 AC_DEFINE(HAVE_KREF_READ, 1,
764 [kref_read() is available])
769 # Kernel version 4.11-rc1 commit da20420f83ea0fbcf3d03afda08d971ea1d8a356
770 # introduced rht_bucket_var
772 AC_DEFUN([LIBCFS_RHT_BUCKET_VAR], [
773 LB_CHECK_COMPILE([if 'rht_bucket_var' exists],
775 #include <linux/rhashtable.h>
778 rht_bucket_var(NULL, 0);
780 AC_DEFINE(HAVE_RHT_BUCKET_VAR, 1,
781 [rht_bucket_var() is available])
783 ]) # LIBCFS_RHT_BUCKET_VAR
786 # Kernel version 4.11 commit f9fe1c12d126f9887441fa5bb165046f30ddd4b5
787 # introduced rhashtable_lookup_get_insert_fast
789 AC_DEFUN([LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST], [
790 LB_CHECK_COMPILE([if 'rhashtable_lookup_get_insert_fast' exist],
791 rhashtable_lookup_get_insert_fast, [
792 #include <linux/rhashtable.h>
794 const struct rhashtable_params params = { 0 };
797 ret = rhashtable_lookup_get_insert_fast(NULL, NULL, params);
799 AC_DEFINE(HAVE_RHASHTABLE_LOOKUP_GET_INSERT_FAST, 1,
800 [rhashtable_lookup_get_insert_fast() is available])
802 ]) # LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST
805 # Kernel version 4.12-rc2 8f553c498e1772cccb39a114da4a498d22992758
806 # provide proper CPU hotplug locking
808 AC_DEFUN([LIBCFS_CPUS_READ_LOCK], [
809 LB_CHECK_COMPILE([if 'cpus_read_[un]lock' exist],
811 #include <linux/cpu.h>
816 AC_DEFINE(HAVE_CPUS_READ_LOCK, 1, ['cpus_read_lock' exist])
818 ]) # LIBCFS_CPUS_READ_LOCK
821 # Kernel version 4.12-rc3 f9727a17db9bab71ddae91f74f11a8a2f9a0ece6
822 # renamed uuid_be to uuid_t
824 AC_DEFUN([LIBCFS_UUID_T], [
825 LB_CHECK_COMPILE([if 'uuid_t' exist],
827 #include <linux/uuid.h>
831 memset(uuid.b, 0, 16);
833 AC_DEFINE(HAVE_UUID_T, 1, ['uuid_t' exist])
838 # Kernel version 4.12-rc3 commit fd851a3cdc196bfc1d229b5f22369069af532bf8
839 # introduce processor.h
841 AC_DEFUN([LIBCFS_HAVE_PROCESSOR_HEADER], [
842 LB_CHECK_LINUX_HEADER([linux/processor.h], [
843 AC_DEFINE(HAVE_PROCESSOR_H, 1,
844 [processor.h is present])])
845 ]) # LIBCFS_HAVE_PROCESSOR_HEADER
848 # Kernel verison 4.12-rc6 commit 5dd43ce2f69d42a71dcacdb13d17d8c0ac1fe8f7
851 AC_DEFUN([LIBCFS_HAVE_WAIT_BIT_HEADER], [
852 LB_CHECK_LINUX_HEADER([linux/wait_bit.h], [
853 AC_DEFINE(HAVE_WAIT_BIT_HEADER_H, 1,
854 [wait_bit.h is present])])
855 ]) # LIBCFS_HAVE_WAIT_BIT_HEADER
858 # Kernel version 4.12-rc6 commmit 2055da97389a605c8a00d163d40903afbe413921
860 # struct wait_queue_head::task_list => ::head
861 # struct wait_queue_entry::task_list => ::entry
863 AC_DEFUN([LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME], [
864 LB_CHECK_COMPILE([if linux wait_queue_head list_head is named head],
865 wait_queue_task_list, [
866 #include <linux/wait.h>
870 INIT_LIST_HEAD(&e.head);
872 AC_DEFINE(HAVE_WAIT_QUEUE_ENTRY_LIST, 1,
873 [linux wait_queue_head_t list_head is name head])
875 ]) # LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME
878 # LIBCFS_WAIT_QUEUE_ENTRY
880 # Kernel version 4.13 ac6424b981bce1c4bc55675c6ce11bfe1bbfa64f
881 # Rename wait_queue_t => wait_queue_entry_t
883 AC_DEFUN([LIBCFS_WAIT_QUEUE_ENTRY], [
884 LB_CHECK_COMPILE([if 'wait_queue_entry_t' exists],
886 #include <linux/wait.h>
888 wait_queue_entry_t e;
892 AC_DEFINE(HAVE_WAIT_QUEUE_ENTRY, 1,
893 ['wait_queue_entry_t' is available])
895 ]) # LIBCFS_WAIT_QUEUE_ENTRY
898 # LIBCFS_NEW_KERNEL_WRITE
900 # Kernel version 4.14 e13ec939e96b13e664bb6cee361cc976a0ee621a
901 # changed kernel_write prototype to make is plug compatible
902 # with the unexported vfs_write()
904 AC_DEFUN([LIBCFS_NEW_KERNEL_WRITE], [
905 tmp_flags="$EXTRA_KCFLAGS"
906 EXTRA_KCFLAGS="-Werror"
907 LB_CHECK_COMPILE([if 'kernel_write' matches other read/write helpers],
908 kernel_write_match, [
909 #include <linux/fs.h>
911 const void *buf = NULL;
913 return kernel_write(NULL, buf, 0, &pos);
915 AC_DEFINE(HAVE_NEW_KERNEL_WRITE, 1,
916 ['kernel_write' aligns with read/write helpers])
918 EXTRA_KCFLAGS="$tmp_flags"
919 ]) # LIBCFS_NEW_KERNEL_WRITE
922 # LIBCFS_MM_TOTALRAM_PAGES_FUNC
924 # kernel 5.0 commit ca79b0c211af63fa3276f0e3fd7dd9ada2439839
925 # mm: convert totalram_pages and totalhigh_pages variables to atomic
927 AC_DEFUN([LIBCFS_MM_TOTALRAM_PAGES_FUNC], [
928 tmp_flags="$EXTRA_KCFLAGS"
929 EXTRA_KCFLAGS="-Werror"
930 LB_CHECK_COMPILE([if totalram_pages is a function],
932 #include <linux/mm.h>
934 totalram_pages_inc();
936 AC_DEFINE(HAVE_TOTALRAM_PAGES_AS_FUNC, 1,
937 [if totalram_pages is a function])
939 EXTRA_KCFLAGS="$tmp_flags"
940 ]) # LIBCFS_MM_TOTALRAM_PAGES_FUNC
943 # LIBCFS_NEW_KERNEL_WRITE
945 # 4.14 commit bdd1d2d3d251c65b74ac4493e08db18971c09240 changed
946 # the signature of kernel_read to match other read/write helpers
947 # and place offset last.
949 AC_DEFUN([LIBCFS_NEW_KERNEL_READ], [
950 tmp_flags="$EXTRA_KCFLAGS"
951 EXTRA_KCFLAGS="-Werror"
952 LB_CHECK_COMPILE([if 'kernel_read()' has loff_t *pos as last parameter],
954 #include <linux/fs.h>
957 kernel_read(NULL, NULL, 0, &pos);
959 AC_DEFINE(HAVE_KERNEL_READ_LAST_POSP, 1,
960 [kernel_read() signature ends with loff_t *pos])
962 EXTRA_KCFLAGS="$tmp_flags"
963 ]) # LIBCFS_NEW_KERNEL_READ
966 # LIBCFS_DEFINE_TIMER
968 # Kernel version 4.14 commit 1d27e3e2252ba9d949ca82fbdb73cde102cb2067
969 # remove expires and data arguments from DEFINE_TIMER. Also the callback
970 # when from using unsigned long argument to using struct timer_list pointer.
972 AC_DEFUN([LIBCFS_DEFINE_TIMER], [
973 LB_CHECK_COMPILE([if DEFINE_TIMER takes only 2 arguments],
975 #include <linux/timer.h>
977 static DEFINE_TIMER(my_timer, NULL);
979 AC_DEFINE(HAVE_NEW_DEFINE_TIMER, 1,
980 [DEFINE_TIMER uses only 2 arguements])
982 ]) # LIBCFS_DEFINE_TIMER
985 # LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
987 # Kernel 2.6.27 commit 8594698ebddeef5443b7da8258ae33b3eaca61d5
988 # exported save_stack_trace_tsk for x86.
989 # Kernel 2.6.27 commit 01f4b8b8b8db09b88be7df7e51192e4e678b69d3
990 # exported save_stack_trace_tsk for powerpc
991 # Kernel 4.13 commit e27c7fa015d61c8be6a2c32b2144aad2ae6ec975
992 # exported save_stack_trace_tsk for arm64
993 # Kernel 4.14 commit 9a3dc3186fc3795e076a4122da9e0258651a9631
994 # exported save_stack_trace_tsk for arm
996 AC_DEFUN([LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK], [
997 LB_CHECK_EXPORT([save_stack_trace_tsk], [arch/$SUBARCH/kernel/stacktrace.c],
998 [AC_DEFINE(HAVE_SAVE_STACK_TRACE_TSK, 1,
999 [save_stack_trace_tsk is exported])])
1000 ]) # LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
1003 # LIBCFS_TIMER_SETUP
1005 # Kernel version 4.15 commit e99e88a9d2b067465adaa9c111ada99a041bef9a
1006 # setup_timer() was replaced by timer_setup(), where the callback
1007 # argument is the structure already holding the struct timer_list.
1009 AC_DEFUN([LIBCFS_TIMER_SETUP], [
1010 LB_CHECK_COMPILE([if setup_timer has been replaced with timer_setup],
1012 #include <linux/timer.h>
1014 timer_setup(NULL, NULL, 0);
1016 AC_DEFINE(HAVE_TIMER_SETUP, 1,
1017 [timer_setup has replaced setup_timer])
1019 ]) # LIBCFS_TIMER_SETUP
1022 # LIBCFS_WAIT_VAR_EVENT
1024 # Kernel version 4.16-rc4 commit 6b2bb7265f0b62605e8caee3613449ed0db270b9
1025 # added wait_var_event()
1027 AC_DEFUN([LIBCFS_WAIT_VAR_EVENT], [
1028 LB_CHECK_COMPILE([if 'wait_var_event' exist],
1030 #ifdef HAVE_WAIT_BIT_HEADER_H
1031 #include <linux/wait_bit.h>
1033 #include <linux/wait.h>
1037 AC_DEFINE(HAVE_WAIT_VAR_EVENT, 1,
1038 ['wait_var_event' is available])
1040 ]) # LIBCFS_WAIT_VAR_EVENT
1043 # LIBCFS_CLEAR_AND_WAKE_UP_BIT
1045 # Kernel version 4.17-rc2 commit 8236b0ae31c837d2b3a2565c5f8d77f637e824cc
1046 # added clear_and_wake_up_bit()
1048 AC_DEFUN([LIBCFS_CLEAR_AND_WAKE_UP_BIT], [
1049 LB_CHECK_COMPILE([if 'clear_and_wake_up_bit' exist],
1050 clear_and_wake_up_bit, [
1051 #ifdef HAVE_WAIT_BIT_HEADER_H
1052 #include <linux/wait_bit.h>
1054 #include <linux/wait.h>
1056 clear_and_wake_up_bit(0, NULL);
1058 AC_DEFINE(HAVE_CLEAR_AND_WAKE_UP_BIT, 1,
1059 ['clear_and_wake_up_bit' is available])
1061 ]) # LIBCFS_CLEAR_AND_WAKE_UP_BIT
1064 # LIBCFS_HAVE_IOV_ITER_TYPE
1066 # kernel 4.20 commit 00e23707442a75b404392cef1405ab4fd498de6b
1067 # iov_iter: Use accessor functions to access an iterator's type and direction.
1069 AC_DEFUN([LIBCFS_HAVE_IOV_ITER_TYPE], [
1070 tmp_flags="$EXTRA_KCFLAGS"
1071 EXTRA_KCFLAGS="-Werror"
1072 LB_CHECK_COMPILE([if iov_iter_type exists],
1073 macro_iov_iter_type_exists, [
1074 #include <linux/uio.h>
1076 struct iov_iter iter = { .type = ITER_KVEC };
1077 enum iter_type type = iov_iter_type(&iter);
1080 AC_DEFINE(HAVE_IOV_ITER_TYPE, 1,
1081 [if iov_iter_type exists])
1083 EXTRA_KCFLAGS="$tmp_flags"
1084 ]) # LIBCFS_HAVE_IOV_ITER_TYPE
1087 # LIBCFS_GET_REQUEST_KEY_AUTH
1089 # kernel 5.0 commit 822ad64d7e46a8e2c8b8a796738d7b657cbb146d
1090 # keys: Fix dependency loop between construction record and auth key
1092 # Added <keys/request_key_auth-type.h> and get_request_key_auth()
1093 # which was propagated to stable
1095 AC_DEFUN([LIBCFS_GET_REQUEST_KEY_AUTH], [
1096 tmp_flags="$EXTRA_KCFLAGS"
1097 EXTRA_KCFLAGS="-Werror"
1098 LB_CHECK_COMPILE([if get_request_key_auth() is available],
1099 get_request_key_auth_exported, [
1100 #include <linux/key.h>
1101 #include <linux/keyctl.h>
1102 #include <keys/request_key_auth-type.h>
1105 const struct key *key = NULL;
1106 struct request_key_auth *rka = get_request_key_auth(key);
1108 ring = key_get(rka->dest_keyring);
1110 AC_DEFINE(HAVE_GET_REQUEST_KEY_AUTH, 1,
1111 [get_request_key_auth() is available])
1113 EXTRA_KCFLAGS="$tmp_flags"
1114 ]) # LIBCFS_GET_REQUEST_KEY_AUTH
1117 # LIBCFS_LOOKUP_USER_KEY
1119 # kernel 5.3 commit 3cf5d076fb4d48979f382bc9452765bf8b79e740
1120 # signal: Remove task parameter from force_sig
1122 AC_DEFUN([LIBCFS_LOOKUP_USER_KEY], [
1123 tmp_flags="$EXTRA_KCFLAGS"
1124 EXTRA_KCFLAGS="-Werror"
1125 LB_CHECK_COMPILE([if lookup_user_key() is available],
1126 lookup_user_key_exported, [
1127 #include <linux/key.h>
1128 #include <linux/keyctl.h>
1130 lookup_user_key(KEY_SPEC_USER_KEYRING, 0, 0);
1132 AC_DEFINE(HAVE_LOOKUP_USER_KEY, 1,
1133 [lookup_user_key() is available])
1135 EXTRA_KCFLAGS="$tmp_flags"
1136 ]) # LIBCFS_LOOKUP_USER_KEY
1139 # LIBCFS_FORCE_SIG_WITH_TASK
1141 # kernel 5.3 commit 3cf5d076fb4d48979f382bc9452765bf8b79e740
1142 # signal: Remove task parameter from force_sig
1144 AC_DEFUN([LIBCFS_FORCE_SIG_WITH_TASK], [
1145 tmp_flags="$EXTRA_KCFLAGS"
1146 EXTRA_KCFLAGS="-Werror"
1147 LB_CHECK_COMPILE([if force_sig has task parameter],
1148 force_sig_with_task, [
1149 #include <linux/sched/signal.h>
1151 force_sig(SIGINT, NULL);
1153 AC_DEFINE(HAVE_FORCE_SIG_WITH_TASK, 1,
1154 [force_sig() has task parameter])
1156 EXTRA_KCFLAGS="$tmp_flags"
1157 ]) # LIBCFS_FORCE_SIG_WITH_TASK
1160 # LIBCFS_CACHE_DETAIL_WRITERS
1162 # kernel v5.3-rc2-1-g64a38e840ce5
1163 # SUNRPC: Track writers of the 'channel' file to improve cache_listeners_exist
1165 AC_DEFUN([LIBCFS_CACHE_DETAIL_WRITERS], [
1166 tmp_flags="$EXTRA_KCFLAGS"
1167 EXTRA_KCFLAGS="-Werror"
1168 LB_CHECK_COMPILE([if struct cache_detail has writers],
1169 cache_detail_writers_atomic, [
1170 #include <linux/sunrpc/cache.h>
1172 static struct cache_detail rsi_cache;
1174 atomic_set(&rsi_cache.writers, 0);
1176 AC_DEFINE(HAVE_CACHE_DETAIL_WRITERS, 1,
1177 [struct cache_detail has writers])
1179 EXTRA_KCFLAGS="$tmp_flags"
1180 ]) # LIBCFS_CACHE_DETAIL_WRITERS
1183 # LIBCFS_CONFIG_CRYPTO_CRC32
1185 # The kernel must support CONFIG_CRYPTO_CRC32 to RPC checksumming
1187 AC_DEFUN([LIBCFS_CONFIG_CRYPTO_CRC32], [
1188 LB_CHECK_CONFIG_IM([CRYPTO_CRC32], [],
1191 Lustre requires that CONFIG_CRYPTO_CRC32 is enabled in your kernel.
1193 ]) # LIBCFS_CONFIG_CRYPTO_CRC32
1199 # LibCFS linux kernel checks
1201 AC_DEFUN([LIBCFS_PROG_LINUX], [
1202 AC_MSG_NOTICE([LibCFS kernel checks
1203 ==============================================================================])
1204 LIBCFS_CONFIG_PANIC_DUMPLOG
1205 LIBCFS_CONFIG_CRYPTO_CRC32
1208 LIBCFS_KTIME_GET_TS64
1210 LIBCFS_PREPARE_TO_WAIT_EVENT
1211 LIBCFS_KERNEL_PARAM_OPS
1215 LIBCFS_KTIME_COMPARE
1216 LIBCFS_SHRINKER_COUNT
1218 LIBCFS_IOV_ITER_HAS_TYPE
1220 LIBCFS_HLIST_ADD_AFTER
1223 LIBCFS_KTIME_GET_REAL_TS64
1224 LIBCFS_KTIME_GET_REAL_SECONDS
1225 LIBCFS_KTIME_GET_REAL_NS
1226 LIBCFS_KTIME_TO_TIMESPEC64
1227 LIBCFS_TIMESPEC64_SUB
1228 LIBCFS_TIMESPEC64_TO_KTIME
1230 LIBCFS_KTIME_GET_SECONDS
1232 LIBCFS_KTIME_MS_DELTA
1234 LIBCFS_KERNEL_PARAM_LOCK
1236 LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK
1238 LIBCFS_KSTRTOBOOL_FROM_USER
1240 LIBCFS_CRYPTO_HASH_HELPERS
1241 LIBCFS_EXPORT_KSET_FIND_OBJ
1242 LIBCFS_RHASHTABLE_REPLACE
1244 LIBCFS_BROKEN_HASH_64
1245 LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
1246 LIBCFS_GET_USER_PAGES_6ARG
1249 LIBCFS_RHASHTABLE_INSERT_FAST
1250 LIBCFS_RHASHTABLE_WALK_INIT_3ARG
1252 LIBCFS_RHASHTABLE_LOOKUP
1254 LIBCFS_STACKTRACE_OPS
1256 LIBCFS_GET_USER_PAGES_GUP_FLAGS
1257 LIBCFS_RHASHTABLE_WALK_ENTER
1259 LIBCFS_HOTPLUG_STATE_MACHINE
1262 LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST
1263 LIBCFS_SCHED_HEADERS
1265 LIBCFS_RHT_BUCKET_VAR
1267 LIBCFS_HAVE_PROCESSOR_HEADER
1268 LIBCFS_HAVE_WAIT_BIT_HEADER
1269 LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME
1270 LIBCFS_CPUS_READ_LOCK
1273 LIBCFS_WAIT_QUEUE_ENTRY
1276 LIBCFS_NEW_KERNEL_WRITE
1277 LIBCFS_NEW_KERNEL_READ
1278 LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
1282 LIBCFS_WAIT_VAR_EVENT
1284 LIBCFS_CLEAR_AND_WAKE_UP_BIT
1286 LIBCFS_HAVE_IOV_ITER_TYPE
1288 LIBCFS_MM_TOTALRAM_PAGES_FUNC
1289 LIBCFS_GET_REQUEST_KEY_AUTH
1291 LIBCFS_LOOKUP_USER_KEY
1292 LIBCFS_FORCE_SIG_WITH_TASK
1293 LIBCFS_CACHE_DETAIL_WRITERS
1294 ]) # LIBCFS_PROG_LINUX
1297 # LIBCFS_PATH_DEFAULTS
1299 # default paths for installed files
1301 AC_DEFUN([LIBCFS_PATH_DEFAULTS], [
1302 ]) # LIBCFS_PATH_DEFAULTS
1307 # other configure checks
1309 AC_DEFUN([LIBCFS_CONFIGURE], [
1310 AC_MSG_NOTICE([LibCFS core checks
1311 ==============================================================================])
1313 # libcfs/libcfs/util/nidstrings.c
1314 AC_CHECK_HEADERS([netdb.h asm/types.h endian.h])
1315 AC_CHECK_FUNCS([gethostbyname])
1317 # -------- Check for required packages --------------
1319 AC_MSG_NOTICE([LibCFS required packages checks
1320 ==============================================================================])
1322 AC_MSG_CHECKING([whether to enable readline support])
1323 AC_ARG_ENABLE(readline,
1324 AC_HELP_STRING([--disable-readline],
1325 [disable readline support]),
1326 [], [enable_readline="yes"])
1327 AC_MSG_RESULT([$enable_readline])
1330 AS_IF([test "x$enable_readline" = xyes], [
1331 AC_CHECK_LIB([readline], [readline], [
1332 LIBREADLINE="-lreadline"
1333 AC_DEFINE(HAVE_LIBREADLINE, 1,
1334 [readline library is available])
1337 AC_SUBST(LIBREADLINE)
1339 AC_MSG_CHECKING([whether to use libpthread for libcfs library])
1340 AC_ARG_ENABLE([libpthread],
1341 AC_HELP_STRING([--disable-libpthread],
1342 [disable libpthread]),
1343 [], [enable_libpthread="yes"])
1344 AC_MSG_RESULT([$enable_libpthread])
1347 AS_IF([test "x$enable_libpthread" = xyes], [
1348 AC_CHECK_LIB([pthread], [pthread_create], [
1349 PTHREAD_LIBS="-lpthread"
1350 AC_DEFINE([HAVE_LIBPTHREAD], 1,
1351 [use libpthread for libcfs library])
1354 AC_MSG_WARN([Using libpthread for libcfs library is disabled explicitly])
1356 AC_SUBST(PTHREAD_LIBS)
1357 ]) # LIBCFS_CONFIGURE
1360 # LIBCFS_CONFIG_FILES
1362 # files that should be generated with AC_OUTPUT
1364 AC_DEFUN([LIBCFS_CONFIG_FILES], [
1368 libcfs/autoconf/Makefile
1369 libcfs/include/Makefile
1370 libcfs/include/libcfs/Makefile
1371 libcfs/include/libcfs/linux/Makefile
1372 libcfs/include/libcfs/util/Makefile
1373 libcfs/libcfs/Makefile
1374 libcfs/libcfs/autoMakefile
1375 libcfs/libcfs/linux/Makefile
1376 libcfs/libcfs/util/Makefile
1378 ]) # LIBCFS_CONFIG_FILES