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="$EXTRA_KCFLAGS -Werror"
123 LB_LINUX_TRY_COMPILE([
124 #include <linux/types.h>
125 #include <linux/stddef.h>
127 unsigned long long *data;
129 data = (__u64*)sizeof(data);
132 AC_DEFINE(HAVE_KERN__U64_LONG_LONG, 1,
133 [kernel __u64 is long long type])
137 EXTRA_KCFLAGS="$tmp_flags"
140 # check if task_struct with rcu memeber
141 AC_DEFUN([LIBCFS_TASK_RCU],
142 [AC_MSG_CHECKING([if task_struct has a rcu field])
143 LB_LINUX_TRY_COMPILE([
144 #include <linux/sched.h>
146 memset(((struct task_struct *)0)->rcu.next, 0, 0);
149 AC_DEFINE(HAVE_TASK_RCU, 1, [task_struct has rcu field])
155 # LIBCFS_TASKLIST_LOCK
156 # 2.6.18 remove tasklist_lock export
157 AC_DEFUN([LIBCFS_TASKLIST_LOCK],
158 [LB_CHECK_SYMBOL_EXPORT([tasklist_lock],
160 AC_DEFINE(HAVE_TASKLIST_LOCK, 1,
161 [tasklist_lock exported])
167 # kmem_cache_destroy(cachep) return void instead of
169 AC_DEFUN([LIBCFS_KMEM_CACHE_DESTROY_INT],
170 [AC_MSG_CHECKING([kmem_cache_destroy(cachep) return int])
171 LB_LINUX_TRY_COMPILE([
172 #include <linux/slab.h>
174 int i = kmem_cache_destroy(NULL);
177 AC_DEFINE(HAVE_KMEM_CACHE_DESTROY_INT, 1,
178 [kmem_cache_destroy(cachep) return int])
185 #panic_notifier_list use atomic_notifier operations
187 AC_DEFUN([LIBCFS_ATOMIC_PANIC_NOTIFIER],
188 [AC_MSG_CHECKING([panic_notifier_list is atomic])
189 LB_LINUX_TRY_COMPILE([
190 #include <linux/notifier.h>
191 #include <linux/kernel.h>
193 struct atomic_notifier_head panic_notifier_list;
196 AC_DEFINE(HAVE_ATOMIC_PANIC_NOTIFIER, 1,
197 [panic_notifier_list is atomic_notifier_head])
203 # since 2.6.19 nlmsg_multicast() needs 5 argument.
204 AC_DEFUN([LIBCFS_NLMSG_MULTICAST],
205 [AC_MSG_CHECKING([nlmsg_multicast needs 5 argument])
206 LB_LINUX_TRY_COMPILE([
207 #include <net/netlink.h>
209 nlmsg_multicast(NULL, NULL, 0, 0, 0);
212 AC_DEFINE(HAVE_NLMSG_MULTICAST_5ARGS, 1,
213 [nlmsg_multicast needs 5 argument])
222 # If we have netlink.h, and nlmsg_new takes 2 args (2.6.19)
224 AC_DEFUN([LIBCFS_NETLINK],
225 [AC_MSG_CHECKING([if netlink.h can be compiled])
226 LB_LINUX_TRY_COMPILE([
227 #include <net/netlink.h>
230 AC_DEFINE(HAVE_NETLINK, 1, [net/netlink.h found])
232 AC_MSG_CHECKING([if nlmsg_new takes a 2nd argument])
233 LB_LINUX_TRY_COMPILE([
234 #include <net/netlink.h>
236 nlmsg_new(100, GFP_KERNEL);
239 AC_DEFINE(HAVE_NETLINK_NL2, 1, [nlmsg_new takes 2 args])
248 # 2.6.20 API change INIT_WORK use 2 args and not
250 AC_DEFUN([LIBCFS_3ARGS_INIT_WORK],
251 [AC_MSG_CHECKING([check INIT_WORK want 3 args])
252 LB_LINUX_TRY_COMPILE([
253 #include <linux/workqueue.h>
255 struct work_struct work;
257 INIT_WORK(&work, NULL, NULL);
260 AC_DEFINE(HAVE_3ARGS_INIT_WORK, 1,
261 [INIT_WORK use 3 args and store data inside])
267 # 2.6.21 api change. 'register_sysctl_table' use only one argument,
268 # instead of more old which need two.
269 AC_DEFUN([LIBCFS_2ARGS_REGISTER_SYSCTL],
270 [AC_MSG_CHECKING([check register_sysctl_table want 2 args])
271 LB_LINUX_TRY_COMPILE([
272 #include <linux/sysctl.h>
274 return register_sysctl_table(NULL,0);
277 AC_DEFINE(HAVE_2ARGS_REGISTER_SYSCTL, 1,
278 [register_sysctl_table want 2 args])
284 # 2.6.21 marks kmem_cache_t deprecated and uses struct kmem_cache
286 AC_DEFUN([LIBCFS_KMEM_CACHE],
287 [AC_MSG_CHECKING([check kernel has struct kmem_cache])
288 tmp_flags="$EXTRA_KCFLAGS"
289 EXTRA_KCFLAGS="-Werror"
290 LB_LINUX_TRY_COMPILE([
291 #include <linux/slab.h>
292 typedef struct kmem_cache cache_t;
294 cache_t *cachep = NULL;
296 kmem_cache_alloc(cachep, 0);
299 AC_DEFINE(HAVE_KMEM_CACHE, 1,
300 [kernel has struct kmem_cache])
304 EXTRA_KCFLAGS="$tmp_flags"
307 # 2.6.23 lost dtor argument
308 AC_DEFUN([LIBCFS_KMEM_CACHE_CREATE_DTOR],
309 [AC_MSG_CHECKING([check kmem_cache_create has dtor argument])
310 LB_LINUX_TRY_COMPILE([
311 #include <linux/slab.h>
313 kmem_cache_create(NULL, 0, 0, 0, NULL, NULL);
316 AC_DEFINE(HAVE_KMEM_CACHE_CREATE_DTOR, 1,
317 [kmem_cache_create has dtor argument])
323 #2.6.23 has new shrinker API
324 AC_DEFUN([LC_REGISTER_SHRINKER],
325 [AC_MSG_CHECKING([if kernel has register_shrinker])
326 LB_LINUX_TRY_COMPILE([
327 #include <linux/mm.h>
329 register_shrinker(NULL);
332 AC_DEFINE(HAVE_REGISTER_SHRINKER, 1,
333 [kernel has register_shrinker])
340 AC_DEFUN([LIBCFS_NETLINK_CBMUTEX],
341 [AC_MSG_CHECKING([for mutex in netlink_kernel_create])
342 LB_LINUX_TRY_COMPILE([
343 #include <linux/netlink.h>
345 struct mutex *lock = NULL;
347 netlink_kernel_create(0, 0, NULL, lock, NULL);
350 AC_DEFINE(HAVE_NETLINK_CBMUTEX, 1,
351 [netlink_kernel_create want mutex for callback])
357 # 2.6.24 request not use real numbers for ctl_name
358 AC_DEFUN([LIBCFS_SYSCTL_UNNUMBERED],
359 [AC_MSG_CHECKING([for CTL_UNNUMBERED])
360 LB_LINUX_TRY_COMPILE([
361 #include <linux/sysctl.h>
363 #ifndef CTL_UNNUMBERED
364 #error CTL_UNNUMBERED not exist in kernel
368 AC_DEFINE(HAVE_SYSCTL_UNNUMBERED, 1,
369 [sysctl has CTL_UNNUMBERED])
375 # 2.6.24 lost scatterlist->page
376 AC_DEFUN([LIBCFS_SCATTERLIST_SETPAGE],
377 [AC_MSG_CHECKING([for exist sg_set_page])
378 LB_LINUX_TRY_COMPILE([
379 #include <asm/types.h>
380 #include <linux/scatterlist.h>
382 sg_set_page(NULL,NULL,0,0);
385 AC_DEFINE(HAVE_SCATTERLIST_SETPAGE, 1,
386 [struct scatterlist has page member])
393 AC_DEFUN([LIBCFS_NETWORK_NAMESPACE],
394 [AC_MSG_CHECKING([for network stack has namespaces])
395 LB_LINUX_TRY_COMPILE([
396 #include <net/net_namespace.h>
398 struct net *net = &init_net;
401 AC_DEFINE(HAVE_INIT_NET, 1,
402 [kernel is support network namespaces ])
410 AC_DEFUN([LIBCFS_NETLINK_NETNS],
411 [AC_MSG_CHECKING([for netlink support net ns])
412 LB_LINUX_TRY_COMPILE([
413 #include <linux/netlink.h>
415 struct net *net = NULL;
416 struct mutex *lock = NULL;
418 netlink_kernel_create(net, 0, 0, NULL,
423 AC_DEFINE(HAVE_NETLINK_NS, 1,
424 [netlink is support network namespace])
426 # for now - if kernel have netlink ns - he uses cbmutex
427 AC_DEFINE(HAVE_NETLINK_CBMUTEX, 1,
428 [netlink_kernel_create want mutex for callback])
436 AC_DEFUN([LIBCFS_NL_BROADCAST_GFP],
437 [AC_MSG_CHECKING([for netlink_broadcast is want to have gfp parameter])
438 LB_LINUX_TRY_COMPILE([
439 #include <linux/netlink.h>
441 gfp_t gfp = GFP_KERNEL;
443 netlink_broadcast(NULL, NULL, 0, 0, gfp);
446 AC_DEFINE(HAVE_NL_BROADCAST_GFP, 1,
447 [netlink brouacast is want to have gfp paramter])
454 # LIBCFS_FUNC_DUMP_TRACE
456 # 2.6.23 exports dump_trace() so we can dump_stack() on any task
457 # 2.6.24 has stacktrace_ops.address with "reliable" parameter
459 AC_DEFUN([LIBCFS_FUNC_DUMP_TRACE],
460 [LB_CHECK_SYMBOL_EXPORT([dump_trace],
461 [kernel/ksyms.c arch/${LINUX_ARCH%_64}/kernel/traps_64.c arch/x86/kernel/dumpstack_32.c arch/x86/kernel/dumpstack_64.c],[
462 tmp_flags="$EXTRA_KCFLAGS"
463 EXTRA_KCFLAGS="-Werror"
464 AC_MSG_CHECKING([whether we can really use dump_trace])
465 LB_LINUX_TRY_COMPILE([
468 #include <asm/stacktrace.h>
472 AC_DEFINE(HAVE_DUMP_TRACE, 1, [dump_trace is exported])
477 AC_MSG_CHECKING([whether print_trace_address has reliable argument])
478 LB_LINUX_TRY_COMPILE([
481 #include <asm/stacktrace.h>
483 ((struct stacktrace_ops *)0)->address(NULL, 0, 0);
486 AC_DEFINE(HAVE_TRACE_ADDRESS_RELIABLE, 1,
487 [print_trace_address has reliable argument])
492 AC_MSG_CHECKING([whether stacktrace_ops.warning is exist])
493 LB_LINUX_TRY_COMPILE([
496 #include <asm/stacktrace.h>
498 ((struct stacktrace_ops *)0)->warning(NULL, NULL);
501 AC_DEFINE(HAVE_STACKTRACE_WARNING, 1, [stacktrace_ops.warning is exist])
506 AC_MSG_CHECKING([dump_trace want address])
507 LB_LINUX_TRY_COMPILE([
510 #include <asm/stacktrace.h>
512 dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
515 AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
516 [dump_trace want address argument])
522 EXTRA_KCFLAGS="$tmp_flags"
527 # 2.6.26 use int instead of atomic for sem.count
528 AC_DEFUN([LIBCFS_SEM_COUNT],
529 [AC_MSG_CHECKING([atomic sem.count])
530 LB_LINUX_TRY_COMPILE([
531 #include <asm/semaphore.h>
535 atomic_read(&s.count);
538 AC_DEFINE(HAVE_SEM_COUNT_ATOMIC, 1,
539 [semaphore counter is atomic])
545 # 2.6.27 have second argument to sock_map_fd
546 AC_DEFUN([LIBCFS_SOCK_MAP_FD_2ARG],
547 [AC_MSG_CHECKING([sock_map_fd have second argument])
548 LB_LINUX_TRY_COMPILE([
549 #include <linux/net.h>
551 sock_map_fd(NULL, 0);
554 AC_DEFINE(HAVE_SOCK_MAP_FD_2ARG, 1,
555 [sock_map_fd have second argument])
561 # LIBCFS_CRED_WRAPPERS
563 # wrappers for task's credentials are in sles11
565 AC_DEFUN([LIBCFS_CRED_WRAPPERS],
566 [AC_MSG_CHECKING([if kernel has wrappers for task's credentials])
567 LB_LINUX_TRY_COMPILE([
568 #include <linux/sched.h>
572 uid = current_uid() + sizeof(uid);
575 AC_DEFINE(HAVE_CRED_WRAPPERS, 1, [task's cred wrappers found])
582 # LN_STRUCT_CRED_IN_TASK
584 # struct cred was introduced in 2.6.29 to streamline credentials in task struct
586 AC_DEFUN([LIBCFS_STRUCT_CRED_IN_TASK],
587 [AC_MSG_CHECKING([if kernel has struct cred])
588 LB_LINUX_TRY_COMPILE([
589 #include <linux/sched.h>
591 struct task_struct *tsk = NULL;
592 tsk->real_cred = NULL;
595 AC_DEFINE(HAVE_STRUCT_CRED, 1, [struct cred found])
602 # LIBCFS_FUNC_UNSHARE_FS_STRUCT
604 # unshare_fs_struct was introduced in 2.6.30 to prevent others to directly
605 # mess with copy_fs_struct
607 AC_DEFUN([LIBCFS_FUNC_UNSHARE_FS_STRUCT],
608 [AC_MSG_CHECKING([if kernel defines unshare_fs_struct()])
609 tmp_flags="$EXTRA_KCFLAGS"
610 EXTRA_KCFLAGS="-Werror"
611 LB_LINUX_TRY_COMPILE([
612 #include <linux/sched.h>
613 #include <linux/fs_struct.h>
618 AC_DEFINE(HAVE_UNSHARE_FS_STRUCT, 1, [unshare_fs_struct found])
622 EXTRA_KCFLAGS="$tmp_flags"
626 # LIBCFS_HAVE_IS_COMPAT_TASK
628 # Added in 2.6.17, it wasn't until 2.6.29 that all
629 # Linux architectures have is_compat_task()
631 AC_DEFUN([LIBCFS_HAVE_IS_COMPAT_TASK],
632 [AC_MSG_CHECKING([if is_compat_task() is declared])
633 LB_LINUX_TRY_COMPILE([
634 #include <linux/compat.h>
636 int i = is_compat_task();
639 AC_DEFINE(HAVE_IS_COMPAT_TASK, 1, [is_compat_task() is available])
646 # LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
648 # 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops'
650 AC_DEFUN([LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK],
651 [AC_MSG_CHECKING([if 'struct stacktrace_ops' has 'walk_stack' field])
652 LB_LINUX_TRY_COMPILE([
653 #include <asm/stacktrace.h>
655 ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL);
658 AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1, ['struct stacktrace_ops' has 'walk_stack' field])
664 AC_DEFUN([LIBCFS_HAVE_OOM_H],
665 [LB_CHECK_FILE([$LINUX/include/linux/oom.h], [
666 AC_DEFINE(HAVE_LINUX_OOM_H, 1,
667 [kernel has include/oom.h])
674 # RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
676 AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR],
677 [AC_MSG_CHECKING([shrinker want self pointer in handler])
678 LB_LINUX_TRY_COMPILE([
679 #include <linux/mm.h>
681 struct shrinker *tmp = NULL;
682 tmp->shrink(tmp, 0, 0);
685 AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
686 [shrinker want self pointer in handler])
692 # 2.6.18 store oom parameters in task struct.
693 # 2.6.32 store oom parameters in signal struct
694 AC_DEFUN([LIBCFS_OOMADJ_IN_SIG],
695 [AC_MSG_CHECKING([kernel store oom parameters in task])
696 LB_LINUX_TRY_COMPILE([
697 #include <linux/sched.h>
699 ((struct signal_struct *)0)->oom_adj = 0;
702 AC_DEFINE(HAVE_OOMADJ_IN_SIG, 1,
703 [kernel store a oom parameters in signal struct])
710 # 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
712 AC_DEFUN([LIBCFS_SYSCTL_CTLNAME],
713 [AC_MSG_CHECKING([if ctl_table has a ctl_name field])
714 LB_LINUX_TRY_COMPILE([
715 #include <linux/sysctl.h>
718 ct.ctl_name = sizeof(ct);
721 AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1,
722 [ctl_table has ctl_name field])
729 # LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
731 # 2.6.34 adds __add_wait_queue_exclusive
733 AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE],
734 [AC_MSG_CHECKING([if __add_wait_queue_exclusive exists])
735 LB_LINUX_TRY_COMPILE([
736 #include <linux/wait.h>
738 wait_queue_head_t queue;
741 __add_wait_queue_exclusive(&queue, &wait);
744 AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
745 [__add_wait_queue_exclusive exists])
752 # 2.6.35 kernel has sk_sleep function
754 AC_DEFUN([LC_SK_SLEEP],
755 [AC_MSG_CHECKING([if kernel has sk_sleep])
756 LB_LINUX_TRY_COMPILE([
757 #include <net/sock.h>
762 AC_DEFINE(HAVE_SK_SLEEP, 1, [kernel has sk_sleep])
769 # FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
770 # pressure shrinker from Linux 3.0
772 AC_DEFUN([LC_SHRINK_CONTROL],
773 [AC_MSG_CHECKING([shrink_control is present])
774 LB_LINUX_TRY_COMPILE([
775 #include <linux/mm.h>
777 struct shrink_control tmp = {0};
778 tmp.nr_to_scan = sizeof(tmp);
781 AC_DEFINE(HAVE_SHRINK_CONTROL, 1,
782 [shrink_control is present])
791 # LNet linux kernel checks
793 AC_DEFUN([LIBCFS_PROG_LINUX],
795 LIBCFS_FUNC_CPU_ONLINE
797 LIBCFS_CONFIG_PANIC_DUMPLOG
799 LIBCFS_FUNC_SHOW_TASK
800 LIBCFS_U64_LONG_LONG_LINUX
804 LIBCFS_HAVE_IS_COMPAT_TASK
807 LIBCFS_NLMSG_MULTICAST
808 LIBCFS_KMEM_CACHE_DESTROY_INT
809 LIBCFS_ATOMIC_PANIC_NOTIFIER
811 LIBCFS_3ARGS_INIT_WORK
813 LIBCFS_2ARGS_REGISTER_SYSCTL
816 LIBCFS_KMEM_CACHE_CREATE_DTOR
817 LIBCFS_NETLINK_CBMUTEX
820 LIBCFS_SYSCTL_UNNUMBERED
821 LIBCFS_SCATTERLIST_SETPAGE
822 LIBCFS_NL_BROADCAST_GFP
823 LIBCFS_NETWORK_NAMESPACE
825 LIBCFS_FUNC_DUMP_TRACE
831 LIBCFS_STRUCT_CRED_IN_TASK
833 LIBCFS_FUNC_UNSHARE_FS_STRUCT
834 LIBCFS_SOCK_MAP_FD_2ARG
836 LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
837 LC_SHRINKER_WANT_SHRINK_PTR
841 LIBCFS_SYSCTL_CTLNAME
843 LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
855 AC_DEFUN([LIBCFS_PROG_DARWIN],
856 [LB_DARWIN_CHECK_FUNCS([get_preemption_level])
860 # LIBCFS_PATH_DEFAULTS
862 # default paths for installed files
864 AC_DEFUN([LIBCFS_PATH_DEFAULTS],
871 # other configure checks
873 AC_DEFUN([LIBCFS_CONFIGURE],
874 [# lnet/utils/portals.c
875 AC_CHECK_HEADERS([asm/types.h endian.h sys/ioctl.h])
878 AC_CHECK_HEADERS([linux/version.h])
880 AC_CHECK_TYPE([spinlock_t],
881 [AC_DEFINE(HAVE_SPINLOCK_T, 1, [spinlock_t is defined])],
883 [#include <linux/spinlock.h>])
885 # lnet/utils/wirecheck.c
886 AC_CHECK_FUNCS([strnlen])
888 AC_CHECK_TYPE([umode_t],
889 [AC_DEFINE(HAVE_UMODE_T, 1, [umode_t is defined])],
891 [#include <asm/types.h>])
893 AC_CHECK_TYPE([__s8],
894 [AC_DEFINE(HAVE___S8, 1, [__s8 is defined])],
896 [#include <asm/types.h>])
898 AC_CHECK_TYPE([__u8],
899 [AC_DEFINE(HAVE___U8, 1, [__u8 is defined])],
901 [#include <asm/types.h>])
903 AC_CHECK_TYPE([__s16],
904 [AC_DEFINE(HAVE___S16, 1, [__s16 is defined])],
906 [#include <asm/types.h>])
908 AC_CHECK_TYPE([__u16],
909 [AC_DEFINE(HAVE___U16, 1, [__u16 is defined])],
911 [#include <asm/types.h>])
913 AC_CHECK_TYPE([__s32],
914 [AC_DEFINE(HAVE___S32, 1, [__s32 is defined])],
916 [#include <asm/types.h>])
918 AC_CHECK_TYPE([__u32],
919 [AC_DEFINE(HAVE___U32, 1, [__u32 is defined])],
921 [#include <asm/types.h>])
923 AC_CHECK_TYPE([__u64],
924 [AC_DEFINE(HAVE___U64, 1, [__u64 is defined])],
926 [#include <asm/types.h>])
928 AC_CHECK_TYPE([__s64],
929 [AC_DEFINE(HAVE___S64, 1, [__s64 is defined])],
931 [#include <asm/types.h>])
933 # check userland __u64 type
934 AC_MSG_CHECKING([userspace __u64 is long long type])
936 CFLAGS="$CFLAGS -Werror"
939 #include <linux/types.h>
940 #include <linux/stddef.h>
942 unsigned long long *data1;
950 AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
951 [__u64 is long long type])
957 # -------- Check for required packages --------------
960 AC_MSG_CHECKING([if efence debugging support is requested])
961 AC_ARG_ENABLE(efence,
962 AC_HELP_STRING([--enable-efence],
963 [use efence library]),
964 [],[enable_efence='no'])
965 AC_MSG_RESULT([$enable_efence])
966 if test "$enable_efence" = "yes" ; then
968 AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
975 # -------- check for -lpthread support ----
976 AC_MSG_CHECKING([whether to use libpthread for libcfs library])
977 AC_ARG_ENABLE([libpthread],
978 AC_HELP_STRING([--disable-libpthread],
979 [disable libpthread]),
980 [],[enable_libpthread=yes])
981 if test "$enable_libpthread" = "yes" ; then
982 AC_CHECK_LIB([pthread], [pthread_create],
983 [ENABLE_LIBPTHREAD="yes"],
984 [ENABLE_LIBPTHREAD="no"])
985 if test "$ENABLE_LIBPTHREAD" = "yes" ; then
986 AC_MSG_RESULT([$ENABLE_LIBPTHREAD])
987 PTHREAD_LIBS="-lpthread"
988 AC_DEFINE([HAVE_LIBPTHREAD], 1, [use libpthread])
991 AC_MSG_RESULT([no libpthread is found])
993 AC_SUBST(PTHREAD_LIBS)
995 AC_MSG_RESULT([no (disabled explicitly)])
996 ENABLE_LIBPTHREAD="no"
998 AC_SUBST(ENABLE_LIBPTHREAD)
1004 # LIBCFS_CONDITIONALS
1006 # AM_CONDITOINAL defines for lnet
1008 AC_DEFUN([LIBCFS_CONDITIONALS],
1013 # LIBCFS_CONFIG_FILES
1015 # files that should be generated with AC_OUTPUT
1017 AC_DEFUN([LIBCFS_CONFIG_FILES],
1022 libcfs/autoconf/Makefile
1023 libcfs/include/Makefile
1024 libcfs/include/libcfs/Makefile
1025 libcfs/include/libcfs/linux/Makefile
1026 libcfs/include/libcfs/posix/Makefile
1027 libcfs/include/libcfs/util/Makefile
1028 libcfs/libcfs/Makefile
1029 libcfs/libcfs/autoMakefile
1030 libcfs/libcfs/linux/Makefile
1031 libcfs/libcfs/posix/Makefile
1032 libcfs/libcfs/util/Makefile
1033 libcfs/include/libcfs/darwin/Makefile
1034 libcfs/libcfs/darwin/Makefile