4 # whether to enable various libcfs debugs (CDEBUG, ENTRY/EXIT, LASSERT, etc.)
6 AC_DEFUN([LN_CONFIG_CDEBUG],
8 AC_MSG_CHECKING([whether to enable CDEBUG, CWARN])
9 AC_ARG_ENABLE([libcfs_cdebug],
10 AC_HELP_STRING([--disable-libcfs-cdebug],
11 [disable libcfs CDEBUG, CWARN]),
12 [],[enable_libcfs_cdebug='yes'])
13 AC_MSG_RESULT([$enable_libcfs_cdebug])
14 if test x$enable_libcfs_cdebug = xyes; then
15 AC_DEFINE(CDEBUG_ENABLED, 1, [enable libcfs CDEBUG, CWARN])
17 AC_DEFINE(CDEBUG_ENABLED, 0, [disable libcfs CDEBUG, CWARN])
20 AC_MSG_CHECKING([whether to enable ENTRY/EXIT])
21 AC_ARG_ENABLE([libcfs_trace],
22 AC_HELP_STRING([--disable-libcfs-trace],
23 [disable libcfs ENTRY/EXIT]),
24 [],[enable_libcfs_trace='yes'])
25 AC_MSG_RESULT([$enable_libcfs_trace])
26 if test x$enable_libcfs_trace = xyes; then
27 AC_DEFINE(CDEBUG_ENTRY_EXIT, 1, [enable libcfs ENTRY/EXIT])
29 AC_DEFINE(CDEBUG_ENTRY_EXIT, 0, [disable libcfs ENTRY/EXIT])
32 AC_MSG_CHECKING([whether to enable LASSERT, LASSERTF])
33 AC_ARG_ENABLE([libcfs_assert],
34 AC_HELP_STRING([--disable-libcfs-assert],
35 [disable libcfs LASSERT, LASSERTF]),
36 [],[enable_libcfs_assert='yes'])
37 AC_MSG_RESULT([$enable_libcfs_assert])
38 if test x$enable_libcfs_assert = xyes; then
39 AC_DEFINE(LIBCFS_DEBUG, 1, [enable libcfs LASSERT, LASSERTF])
44 # LIBCFS_CONFIG_PANIC_DUMPLOG
46 # check if tunable panic_dumplog is wanted
48 AC_DEFUN([LIBCFS_CONFIG_PANIC_DUMPLOG],
49 [AC_MSG_CHECKING([for tunable panic_dumplog support])
50 AC_ARG_ENABLE([panic_dumplog],
51 AC_HELP_STRING([--enable-panic_dumplog],
52 [enable panic_dumplog]),
53 [],[enable_panic_dumplog='no'])
54 if test x$enable_panic_dumplog = xyes ; then
55 AC_DEFINE(LNET_DUMP_ON_PANIC, 1, [use dumplog on panic])
56 AC_MSG_RESULT([yes (by request)])
63 # LIBCFS_FUNC_CPU_ONLINE
65 # cpu_online is different in rh 2.4, vanilla 2.4, and 2.6
67 AC_DEFUN([LIBCFS_FUNC_CPU_ONLINE],
68 [AC_MSG_CHECKING([if kernel defines cpu_online()])
69 LB_LINUX_TRY_COMPILE([
70 #include <linux/sched.h>
75 AC_DEFINE(HAVE_CPU_ONLINE, 1, [cpu_online found])
84 # check if gfp_t is typedef-ed
86 AC_DEFUN([LIBCFS_TYPE_GFP_T],
87 [AC_MSG_CHECKING([if kernel defines gfp_t])
88 LB_LINUX_TRY_COMPILE([
89 #include <linux/gfp.h>
94 AC_DEFINE(HAVE_GFP_T, 1, [gfp_t found])
101 # LIBCFS_FUNC_SHOW_TASK
103 # we export show_task(), but not all kernels have it (yet)
105 AC_DEFUN([LIBCFS_FUNC_SHOW_TASK],
106 [LB_CHECK_SYMBOL_EXPORT([show_task],
107 [kernel/ksyms.c kernel/sched.c],[
108 AC_DEFINE(HAVE_SHOW_TASK, 1, [show_task is exported])
110 LB_CHECK_SYMBOL_EXPORT([sched_show_task],
111 [kernel/ksyms.c kernel/sched.c],[
112 AC_DEFINE(HAVE_SCHED_SHOW_TASK, 1, [sched_show_task is exported])
117 # check kernel __u64 type
118 AC_DEFUN([LIBCFS_U64_LONG_LONG_LINUX],
120 AC_MSG_CHECKING([kernel __u64 is long long type])
121 tmp_flags="$EXTRA_KCFLAGS"
122 EXTRA_KCFLAGS="$EXTRA_KCFLAGS -Werror"
123 LB_LINUX_TRY_COMPILE([
124 #include <linux/types.h>
125 #include <linux/stddef.h>
127 unsigned long long *data1;
133 AC_DEFINE(HAVE_KERN__U64_LONG_LONG, 1,
134 [kernel __u64 is long long type])
138 EXTRA_KCFLAGS="$tmp_flags"
141 # check if task_struct with rcu memeber
142 AC_DEFUN([LIBCFS_TASK_RCU],
143 [AC_MSG_CHECKING([if task_struct has a rcu field])
144 LB_LINUX_TRY_COMPILE([
145 #include <linux/sched.h>
147 struct task_struct tsk;
152 AC_DEFINE(HAVE_TASK_RCU, 1,
153 [task_struct has rcu field])
159 # LIBCFS_TASKLIST_LOCK
160 # 2.6.18 remove tasklist_lock export
161 AC_DEFUN([LIBCFS_TASKLIST_LOCK],
162 [LB_CHECK_SYMBOL_EXPORT([tasklist_lock],
164 AC_DEFINE(HAVE_TASKLIST_LOCK, 1,
165 [tasklist_lock exported])
171 # kmem_cache_destroy(cachep) return void instead of
173 AC_DEFUN([LIBCFS_KMEM_CACHE_DESTROY_INT],
174 [AC_MSG_CHECKING([kmem_cache_destroy(cachep) return int])
175 LB_LINUX_TRY_COMPILE([
176 #include <linux/slab.h>
178 int i = kmem_cache_destroy(NULL);
181 AC_DEFINE(HAVE_KMEM_CACHE_DESTROY_INT, 1,
182 [kmem_cache_destroy(cachep) return int])
189 #panic_notifier_list use atomic_notifier operations
191 AC_DEFUN([LIBCFS_ATOMIC_PANIC_NOTIFIER],
192 [AC_MSG_CHECKING([panic_notifier_list is atomic])
193 LB_LINUX_TRY_COMPILE([
194 #include <linux/notifier.h>
195 #include <linux/kernel.h>
197 struct atomic_notifier_head panic_notifier_list;
200 AC_DEFINE(HAVE_ATOMIC_PANIC_NOTIFIER, 1,
201 [panic_notifier_list is atomic_notifier_head])
207 # since 2.6.19 nlmsg_multicast() needs 5 argument.
208 AC_DEFUN([LIBCFS_NLMSG_MULTICAST],
209 [AC_MSG_CHECKING([nlmsg_multicast needs 5 argument])
210 LB_LINUX_TRY_COMPILE([
211 #include <net/netlink.h>
213 nlmsg_multicast(NULL, NULL, 0, 0, 0);
216 AC_DEFINE(HAVE_NLMSG_MULTICAST_5ARGS, 1,
217 [nlmsg_multicast needs 5 argument])
226 # If we have netlink.h, and nlmsg_new takes 2 args (2.6.19)
228 AC_DEFUN([LIBCFS_NETLINK],
229 [AC_MSG_CHECKING([if netlink.h can be compiled])
230 LB_LINUX_TRY_COMPILE([
231 #include <net/netlink.h>
234 AC_DEFINE(HAVE_NETLINK, 1, [net/netlink.h found])
236 AC_MSG_CHECKING([if nlmsg_new takes a 2nd argument])
237 LB_LINUX_TRY_COMPILE([
238 #include <net/netlink.h>
240 nlmsg_new(100, GFP_KERNEL);
243 AC_DEFINE(HAVE_NETLINK_NL2, 1, [nlmsg_new takes 2 args])
252 # 2.6.20 API change INIT_WORK use 2 args and not
254 AC_DEFUN([LIBCFS_3ARGS_INIT_WORK],
255 [AC_MSG_CHECKING([check INIT_WORK want 3 args])
256 LB_LINUX_TRY_COMPILE([
257 #include <linux/workqueue.h>
259 struct work_struct work;
261 INIT_WORK(&work, NULL, NULL);
264 AC_DEFINE(HAVE_3ARGS_INIT_WORK, 1,
265 [INIT_WORK use 3 args and store data inside])
271 # 2.6.21 api change. 'register_sysctl_table' use only one argument,
272 # instead of more old which need two.
273 AC_DEFUN([LIBCFS_2ARGS_REGISTER_SYSCTL],
274 [AC_MSG_CHECKING([check register_sysctl_table want 2 args])
275 LB_LINUX_TRY_COMPILE([
276 #include <linux/sysctl.h>
278 return register_sysctl_table(NULL,0);
281 AC_DEFINE(HAVE_2ARGS_REGISTER_SYSCTL, 1,
282 [register_sysctl_table want 2 args])
288 # 2.6.21 marks kmem_cache_t deprecated and uses struct kmem_cache
290 AC_DEFUN([LIBCFS_KMEM_CACHE],
291 [AC_MSG_CHECKING([check kernel has struct kmem_cache])
292 tmp_flags="$EXTRA_KCFLAGS"
293 EXTRA_KCFLAGS="-Werror"
294 LB_LINUX_TRY_COMPILE([
295 #include <linux/slab.h>
296 typedef struct kmem_cache cache_t;
298 cache_t *cachep = NULL;
300 kmem_cache_alloc(cachep, 0);
303 AC_DEFINE(HAVE_KMEM_CACHE, 1,
304 [kernel has struct kmem_cache])
308 EXTRA_KCFLAGS="$tmp_flags"
311 # 2.6.23 lost dtor argument
312 AC_DEFUN([LIBCFS_KMEM_CACHE_CREATE_DTOR],
313 [AC_MSG_CHECKING([check kmem_cache_create has dtor argument])
314 LB_LINUX_TRY_COMPILE([
315 #include <linux/slab.h>
317 kmem_cache_create(NULL, 0, 0, 0, NULL, NULL);
320 AC_DEFINE(HAVE_KMEM_CACHE_CREATE_DTOR, 1,
321 [kmem_cache_create has dtor argument])
327 #2.6.23 has new shrinker API
328 AC_DEFUN([LC_REGISTER_SHRINKER],
329 [AC_MSG_CHECKING([if kernel has register_shrinker])
330 LB_LINUX_TRY_COMPILE([
331 #include <linux/mm.h>
333 register_shrinker(NULL);
336 AC_DEFINE(HAVE_REGISTER_SHRINKER, 1,
337 [kernel has register_shrinker])
344 AC_DEFUN([LIBCFS_NETLINK_CBMUTEX],
345 [AC_MSG_CHECKING([for mutex in netlink_kernel_create])
346 LB_LINUX_TRY_COMPILE([
347 #include <linux/netlink.h>
349 struct mutex *lock = NULL;
351 netlink_kernel_create(0, 0, NULL, lock, NULL);
354 AC_DEFINE(HAVE_NETLINK_CBMUTEX, 1,
355 [netlink_kernel_create want mutex for callback])
361 # 2.6.24 request not use real numbers for ctl_name
362 AC_DEFUN([LIBCFS_SYSCTL_UNNUMBERED],
363 [AC_MSG_CHECKING([for CTL_UNNUMBERED])
364 LB_LINUX_TRY_COMPILE([
365 #include <linux/sysctl.h>
367 #ifndef CTL_UNNUMBERED
368 #error CTL_UNNUMBERED not exist in kernel
372 AC_DEFINE(HAVE_SYSCTL_UNNUMBERED, 1,
373 [sysctl has CTL_UNNUMBERED])
379 # 2.6.24 lost scatterlist->page
380 AC_DEFUN([LIBCFS_SCATTERLIST_SETPAGE],
381 [AC_MSG_CHECKING([for exist sg_set_page])
382 LB_LINUX_TRY_COMPILE([
383 #include <asm/types.h>
384 #include <linux/scatterlist.h>
386 sg_set_page(NULL,NULL,0,0);
389 AC_DEFINE(HAVE_SCATTERLIST_SETPAGE, 1,
390 [struct scatterlist has page member])
397 AC_DEFUN([LIBCFS_NETWORK_NAMESPACE],
398 [AC_MSG_CHECKING([for network stack has namespaces])
399 LB_LINUX_TRY_COMPILE([
400 #include <net/net_namespace.h>
402 struct net *net = &init_net;
405 AC_DEFINE(HAVE_INIT_NET, 1,
406 [kernel is support network namespaces ])
414 AC_DEFUN([LIBCFS_NETLINK_NETNS],
415 [AC_MSG_CHECKING([for netlink support net ns])
416 LB_LINUX_TRY_COMPILE([
417 #include <linux/netlink.h>
419 struct net *net = NULL;
420 struct mutex *lock = NULL;
422 netlink_kernel_create(net, 0, 0, NULL,
427 AC_DEFINE(HAVE_NETLINK_NS, 1,
428 [netlink is support network namespace])
430 # for now - if kernel have netlink ns - he uses cbmutex
431 AC_DEFINE(HAVE_NETLINK_CBMUTEX, 1,
432 [netlink_kernel_create want mutex for callback])
440 AC_DEFUN([LIBCFS_NL_BROADCAST_GFP],
441 [AC_MSG_CHECKING([for netlink_broadcast is want to have gfp parameter])
442 LB_LINUX_TRY_COMPILE([
443 #include <linux/netlink.h>
445 gfp_t gfp = GFP_KERNEL;
447 netlink_broadcast(NULL, NULL, 0, 0, gfp);
450 AC_DEFINE(HAVE_NL_BROADCAST_GFP, 1,
451 [netlink brouacast is want to have gfp paramter])
458 # LIBCFS_FUNC_DUMP_TRACE
460 # 2.6.23 exports dump_trace() so we can dump_stack() on any task
461 # 2.6.24 has stacktrace_ops.address with "reliable" parameter
463 AC_DEFUN([LIBCFS_FUNC_DUMP_TRACE],
464 [LB_CHECK_SYMBOL_EXPORT([dump_trace],
465 [kernel/ksyms.c arch/${LINUX_ARCH%_64}/kernel/traps_64.c arch/x86/kernel/dumpstack_32.c arch/x86/kernel/dumpstack_64.c],[
466 tmp_flags="$EXTRA_KCFLAGS"
467 EXTRA_KCFLAGS="-Werror"
468 AC_MSG_CHECKING([whether we can really use dump_trace])
469 LB_LINUX_TRY_COMPILE([
472 #include <asm/stacktrace.h>
476 AC_DEFINE(HAVE_DUMP_TRACE, 1, [dump_trace is exported])
481 AC_MSG_CHECKING([whether print_trace_address has reliable argument])
482 LB_LINUX_TRY_COMPILE([
485 void print_addr(void *data, unsigned long addr, int reliable);
486 #include <asm/stacktrace.h>
488 struct stacktrace_ops ops;
489 ops.address = print_addr;
492 AC_DEFINE(HAVE_TRACE_ADDRESS_RELIABLE, 1,
493 [print_trace_address has reliable argument])
498 AC_MSG_CHECKING([dump_trace want address])
499 LB_LINUX_TRY_COMPILE([
502 #include <asm/stacktrace.h>
504 dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
507 AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
508 [dump_trace want address argument])
514 EXTRA_KCFLAGS="$tmp_flags"
519 # 2.6.26 use int instead of atomic for sem.count
520 AC_DEFUN([LIBCFS_SEM_COUNT],
521 [AC_MSG_CHECKING([atomic sem.count])
522 LB_LINUX_TRY_COMPILE([
523 #include <asm/semaphore.h>
527 atomic_read(&s.count);
530 AC_DEFINE(HAVE_SEM_COUNT_ATOMIC, 1,
531 [semaphore counter is atomic])
537 # 2.6.27 have second argument to sock_map_fd
538 AC_DEFUN([LIBCFS_SOCK_MAP_FD_2ARG],
539 [AC_MSG_CHECKING([sock_map_fd have second argument])
540 LB_LINUX_TRY_COMPILE([
541 #include <linux/net.h>
543 sock_map_fd(NULL, 0);
546 AC_DEFINE(HAVE_SOCK_MAP_FD_2ARG, 1,
547 [sock_map_fd have second argument])
553 # LIBCFS_CRED_WRAPPERS
555 # wrappers for task's credentials are in sles11
557 AC_DEFUN([LIBCFS_CRED_WRAPPERS],
558 [AC_MSG_CHECKING([if kernel has wrappers for task's credentials])
559 LB_LINUX_TRY_COMPILE([
560 #include <linux/sched.h>
567 AC_DEFINE(HAVE_CRED_WRAPPERS, 1, [task's cred wrappers found])
574 # LN_STRUCT_CRED_IN_TASK
576 # struct cred was introduced in 2.6.29 to streamline credentials in task struct
578 AC_DEFUN([LIBCFS_STRUCT_CRED_IN_TASK],
579 [AC_MSG_CHECKING([if kernel has struct cred])
580 LB_LINUX_TRY_COMPILE([
581 #include <linux/sched.h>
583 struct task_struct *tsk = NULL;
584 tsk->real_cred = NULL;
587 AC_DEFINE(HAVE_STRUCT_CRED, 1, [struct cred found])
594 # LIBCFS_FUNC_UNSHARE_FS_STRUCT
596 # unshare_fs_struct was introduced in 2.6.30 to prevent others to directly
597 # mess with copy_fs_struct
599 AC_DEFUN([LIBCFS_FUNC_UNSHARE_FS_STRUCT],
600 [AC_MSG_CHECKING([if kernel defines unshare_fs_struct()])
601 tmp_flags="$EXTRA_KCFLAGS"
602 EXTRA_KCFLAGS="-Werror"
603 LB_LINUX_TRY_COMPILE([
604 #include <linux/sched.h>
605 #include <linux/fs_struct.h>
610 AC_DEFINE(HAVE_UNSHARE_FS_STRUCT, 1, [unshare_fs_struct found])
614 EXTRA_KCFLAGS="$tmp_flags"
618 # LIBCFS_HAVE_IS_COMPAT_TASK
620 # Added in 2.6.17, it wasn't until 2.6.29 that all
621 # Linux architectures have is_compat_task()
623 AC_DEFUN([LIBCFS_HAVE_IS_COMPAT_TASK],
624 [AC_MSG_CHECKING([if is_compat_task() is declared])
625 LB_LINUX_TRY_COMPILE([
626 #include <linux/compat.h>
628 int i = is_compat_task();
631 AC_DEFINE(HAVE_IS_COMPAT_TASK, 1, [is_compat_task() is available])
638 # LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
640 # 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops'
642 AC_DEFUN([LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK],
643 [AC_MSG_CHECKING([if 'struct stacktrace_ops' has 'walk_stack' field])
644 LB_LINUX_TRY_COMPILE([
645 #include <asm/stacktrace.h>
646 unsigned long walkstack(struct thread_info *tinfo,
647 unsigned long *stack,
649 const struct stacktrace_ops *ops,
654 struct stacktrace_ops ops;
656 ops.walk_stack = walkstack;
659 AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1, ['struct stacktrace_ops' has 'walk_stack' field])
665 AC_DEFUN([LIBCFS_HAVE_OOM_H],
666 [LB_CHECK_FILE([$LINUX/include/linux/oom.h], [
667 AC_DEFINE(HAVE_LINUX_OOM_H, 1,
668 [kernel has include/oom.h])
674 # 2.6.18 store oom parameters in task struct.
675 # 2.6.32 store oom parameters in signal struct
676 AC_DEFUN([LIBCFS_OOMADJ_IN_SIG],
677 [AC_MSG_CHECKING([kernel store oom parameters in task])
678 LB_LINUX_TRY_COMPILE([
679 #include <linux/sched.h>
681 struct signal_struct s;
686 AC_DEFINE(HAVE_OOMADJ_IN_SIG, 1,
687 [kernel store a oom parameters in signal struct])
694 # LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
696 # 2.6.34 adds __add_wait_queue_exclusive
698 AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE],
699 [AC_MSG_CHECKING([if __add_wait_queue_exclusive exists])
700 LB_LINUX_TRY_COMPILE([
701 #include <linux/wait.h>
703 wait_queue_head_t queue;
706 __add_wait_queue_exclusive(&queue, &wait);
709 AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
710 [__add_wait_queue_exclusive exists])
716 # RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
717 AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR],
718 [AC_MSG_CHECKING([shrinker want self pointer in handler])
719 LB_LINUX_TRY_COMPILE([
720 #include <linux/mm.h>
722 struct shrinker tmp = {0};
723 tmp.shrink(NULL, 0, 0);
726 AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
727 [shrinker want self pointer in handler])
736 # LNet linux kernel checks
738 AC_DEFUN([LIBCFS_PROG_LINUX],
740 LIBCFS_FUNC_CPU_ONLINE
742 LIBCFS_CONFIG_PANIC_DUMPLOG
744 LIBCFS_FUNC_SHOW_TASK
745 LIBCFS_U64_LONG_LONG_LINUX
749 LIBCFS_HAVE_IS_COMPAT_TASK
752 LIBCFS_NLMSG_MULTICAST
753 LIBCFS_KMEM_CACHE_DESTROY_INT
754 LIBCFS_ATOMIC_PANIC_NOTIFIER
756 LIBCFS_3ARGS_INIT_WORK
758 LIBCFS_2ARGS_REGISTER_SYSCTL
761 LIBCFS_KMEM_CACHE_CREATE_DTOR
762 LIBCFS_NETLINK_CBMUTEX
765 LIBCFS_SYSCTL_UNNUMBERED
766 LIBCFS_SCATTERLIST_SETPAGE
767 LIBCFS_NL_BROADCAST_GFP
768 LIBCFS_NETWORK_NAMESPACE
770 LIBCFS_FUNC_DUMP_TRACE
776 LIBCFS_STRUCT_CRED_IN_TASK
778 LIBCFS_FUNC_UNSHARE_FS_STRUCT
779 LIBCFS_SOCK_MAP_FD_2ARG
781 LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
782 LC_SHRINKER_WANT_SHRINK_PTR
786 LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
794 AC_DEFUN([LIBCFS_PROG_DARWIN],
795 [LB_DARWIN_CHECK_FUNCS([get_preemption_level])
799 # LIBCFS_PATH_DEFAULTS
801 # default paths for installed files
803 AC_DEFUN([LIBCFS_PATH_DEFAULTS],
810 # other configure checks
812 AC_DEFUN([LIBCFS_CONFIGURE],
813 [# lnet/utils/portals.c
814 AC_CHECK_HEADERS([asm/types.h endian.h sys/ioctl.h])
817 AC_CHECK_HEADERS([linux/version.h])
819 AC_CHECK_TYPE([spinlock_t],
820 [AC_DEFINE(HAVE_SPINLOCK_T, 1, [spinlock_t is defined])],
822 [#include <linux/spinlock.h>])
824 # lnet/utils/wirecheck.c
825 AC_CHECK_FUNCS([strnlen])
827 AC_CHECK_TYPE([umode_t],
828 [AC_DEFINE(HAVE_UMODE_T, 1, [umode_t is defined])],
830 [#include <asm/types.h>])
832 AC_CHECK_TYPE([__s8],
833 [AC_DEFINE(HAVE___S8, 1, [__s8 is defined])],
835 [#include <asm/types.h>])
837 AC_CHECK_TYPE([__u8],
838 [AC_DEFINE(HAVE___U8, 1, [__u8 is defined])],
840 [#include <asm/types.h>])
842 AC_CHECK_TYPE([__s16],
843 [AC_DEFINE(HAVE___S16, 1, [__s16 is defined])],
845 [#include <asm/types.h>])
847 AC_CHECK_TYPE([__u16],
848 [AC_DEFINE(HAVE___U16, 1, [__u16 is defined])],
850 [#include <asm/types.h>])
852 AC_CHECK_TYPE([__s32],
853 [AC_DEFINE(HAVE___S32, 1, [__s32 is defined])],
855 [#include <asm/types.h>])
857 AC_CHECK_TYPE([__u32],
858 [AC_DEFINE(HAVE___U32, 1, [__u32 is defined])],
860 [#include <asm/types.h>])
862 AC_CHECK_TYPE([__u64],
863 [AC_DEFINE(HAVE___U64, 1, [__u64 is defined])],
865 [#include <asm/types.h>])
867 AC_CHECK_TYPE([__s64],
868 [AC_DEFINE(HAVE___S64, 1, [__s64 is defined])],
870 [#include <asm/types.h>])
872 # check userland __u64 type
873 AC_MSG_CHECKING([userspace __u64 is long long type])
875 CFLAGS="$CFLAGS -Werror"
878 #include <linux/types.h>
879 #include <linux/stddef.h>
881 unsigned long long *data1;
889 AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
890 [__u64 is long long type])
896 # -------- Check for required packages --------------
899 AC_MSG_CHECKING([if efence debugging support is requested])
900 AC_ARG_ENABLE(efence,
901 AC_HELP_STRING([--enable-efence],
902 [use efence library]),
903 [],[enable_efence='no'])
904 AC_MSG_RESULT([$enable_efence])
905 if test "$enable_efence" = "yes" ; then
907 AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
914 # -------- check for -lpthread support ----
915 AC_MSG_CHECKING([whether to use libpthread for libcfs library])
916 AC_ARG_ENABLE([libpthread],
917 AC_HELP_STRING([--disable-libpthread],
918 [disable libpthread]),
919 [],[enable_libpthread=yes])
920 if test "$enable_libpthread" = "yes" ; then
921 AC_CHECK_LIB([pthread], [pthread_create],
922 [ENABLE_LIBPTHREAD="yes"],
923 [ENABLE_LIBPTHREAD="no"])
924 if test "$ENABLE_LIBPTHREAD" = "yes" ; then
925 AC_MSG_RESULT([$ENABLE_LIBPTHREAD])
926 PTHREAD_LIBS="-lpthread"
927 AC_DEFINE([HAVE_LIBPTHREAD], 1, [use libpthread])
930 AC_MSG_RESULT([no libpthread is found])
932 AC_SUBST(PTHREAD_LIBS)
934 AC_MSG_RESULT([no (disabled explicitly)])
935 ENABLE_LIBPTHREAD="no"
937 AC_SUBST(ENABLE_LIBPTHREAD)
943 # LIBCFS_CONDITIONALS
945 # AM_CONDITOINAL defines for lnet
947 AC_DEFUN([LIBCFS_CONDITIONALS],
952 # LIBCFS_CONFIG_FILES
954 # files that should be generated with AC_OUTPUT
956 AC_DEFUN([LIBCFS_CONFIG_FILES],
961 libcfs/autoconf/Makefile
962 libcfs/include/Makefile
963 libcfs/include/libcfs/Makefile
964 libcfs/include/libcfs/linux/Makefile
965 libcfs/include/libcfs/posix/Makefile
966 libcfs/include/libcfs/util/Makefile
967 libcfs/libcfs/Makefile
968 libcfs/libcfs/autoMakefile
969 libcfs/libcfs/linux/Makefile
970 libcfs/libcfs/posix/Makefile
971 libcfs/libcfs/util/Makefile
972 libcfs/include/libcfs/darwin/Makefile
973 libcfs/libcfs/darwin/Makefile