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$enable_panic_dumplog = xyes ; then
55 AC_DEFINE(LNET_DUMP_ON_PANIC, 1, [use dumplog on panic])
56 AC_MSG_RESULT([yes (by request)])
62 # check kernel __u64 type
63 AC_DEFUN([LIBCFS_U64_LONG_LONG_LINUX],
65 AC_MSG_CHECKING([kernel __u64 is long long type])
66 tmp_flags="$EXTRA_KCFLAGS"
67 EXTRA_KCFLAGS="$EXTRA_KCFLAGS -Werror"
68 LB_LINUX_TRY_COMPILE([
69 #include <linux/types.h>
70 #include <linux/stddef.h>
72 unsigned long long *data;
74 data = (__u64*)sizeof(data);
77 AC_DEFINE(HAVE_KERN__U64_LONG_LONG, 1,
78 [kernel __u64 is long long type])
82 EXTRA_KCFLAGS="$tmp_flags"
85 # check cpumask_size (2.6.28)
86 AC_DEFUN([LIBCFS_CPUMASK_SIZE],
87 [AC_MSG_CHECKING([whether have cpumask_size()])
88 LB_LINUX_TRY_COMPILE([
89 #include <linux/cpumask.h>
91 int size = cpumask_size();
94 AC_DEFINE(HAVE_CPUMASK_SIZE, 1, [have cpumask_size()])
100 # check cpu topology functions
102 # topology_core_cpumask (2.6.29, not on all archs)
103 # topology_core_siblings (not on all archs)
104 # topology_thread_cpumask (2.6.29, not on all archs)
105 # topology_thread_siblings (not on all archs)
106 # cpumask_of_node/node_to_cpumask (not always exported)
107 AC_DEFUN([LIBCFS_CPU_TOPOLOGY],
108 [AC_MSG_CHECKING([whether have topology.h])
109 LB_LINUX_TRY_COMPILE([
110 #include <linux/topology.h>
112 AC_DEFINE(HAVE_CPU_TOPOLOGY, 1, [have CPU topology])
115 AC_MSG_CHECKING([whether have topology_core_cpumask])
116 LB_LINUX_TRY_COMPILE([
117 #include <linux/topology.h>
119 cpumask_t *mask = topology_core_cpumask(0);
121 AC_DEFINE(HAVE_TOPOLOGY_CORE_CPUMASK, 1,
122 [have topology_core_cpumask])
128 AC_MSG_CHECKING([whether have topology_core_siblings])
129 LB_LINUX_TRY_COMPILE([
130 #include <linux/topology.h>
132 cpumask_t mask = topology_core_siblings(0);
134 AC_DEFINE(HAVE_TOPOLOGY_CORE_SIBLINGS, 1,
135 [have topology_core_siblings])
141 AC_MSG_CHECKING([whether have topology_thread_cpumask])
142 LB_LINUX_TRY_COMPILE([
143 #include <linux/topology.h>
145 cpumask_t *mask = topology_thread_cpumask(0);
147 AC_DEFINE(HAVE_TOPOLOGY_THREAD_CPUMASK, 1,
148 [have topology_thread_cpumask])
154 AC_MSG_CHECKING([whether have topology_thread_siblings])
155 LB_LINUX_TRY_COMPILE([
156 #include <linux/topology.h>
158 cpumask_t mask = topology_thread_siblings(0);
160 AC_DEFINE(HAVE_TOPOLOGY_THREAD_SIBLINGS, 1,
161 [have topology_thread_siblings])
167 AC_MSG_CHECKING([whether OFED backports have cpumask_of_node])
168 # Some OFED has cpumask_of_node backports defined in
169 # its private include/linux/cpumask.h. However, it is
170 # defined conflictingly with kernel's cpumask_of_node.
171 if test -f $OFED_BACKPORT_PATH/linux/cpumask.h; then
172 grep -q cpumask_of_node $OFED_BACKPORT_PATH/linux/cpumask.h 2>/dev/null
174 if test $rc -eq 0; then
175 AC_DEFINE(HAVE_OFED_CPUMASK_OF_NODE, 1, [have cpumask_of_node])
182 AC_MSG_CHECKING([whether have cpumask_of_node])
183 LB_LINUX_TRY_COMPILE([
184 #include <linux/topology.h>
186 cpumask_t *mask = cpumask_of_node(0);
188 AC_DEFINE(HAVE_CPUMASK_OF_NODE, 1, [have cpumask_of_node])
194 AC_MSG_CHECKING([whether have cpumask_copy])
195 LB_LINUX_TRY_COMPILE([
196 #include <linux/cpumask.h>
198 cpumask_copy(NULL, NULL);
200 AC_DEFINE(HAVE_CPUMASK_COPY, 1, [have cpumask_copy])
206 AC_MSG_CHECKING([whether have node_to_cpumask])
207 LB_LINUX_TRY_COMPILE([
208 #include <linux/topology.h>
210 cpumask_t mask = node_to_cpumask(0);
212 AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1, [have node_to_cpumask])
223 # 2.6.24 request not use real numbers for ctl_name
224 AC_DEFUN([LIBCFS_SYSCTL_UNNUMBERED],
225 [AC_MSG_CHECKING([for CTL_UNNUMBERED])
226 LB_LINUX_TRY_COMPILE([
227 #include <linux/sysctl.h>
229 #ifndef CTL_UNNUMBERED
230 #error CTL_UNNUMBERED not exist in kernel
234 AC_DEFINE(HAVE_SYSCTL_UNNUMBERED, 1,
235 [sysctl has CTL_UNNUMBERED])
242 # LIBCFS_FUNC_DUMP_TRACE
244 # 2.6.23 exports dump_trace() so we can dump_stack() on any task
245 # 2.6.24 has stacktrace_ops.address with "reliable" parameter
247 AC_DEFUN([LIBCFS_FUNC_DUMP_TRACE],
248 [LB_CHECK_SYMBOL_EXPORT([dump_trace],
249 [kernel/ksyms.c arch/${LINUX_ARCH%_64}/kernel/traps_64.c arch/x86/kernel/dumpstack_32.c arch/x86/kernel/dumpstack_64.c],[
250 tmp_flags="$EXTRA_KCFLAGS"
251 EXTRA_KCFLAGS="-Werror"
252 AC_MSG_CHECKING([whether we can really use dump_trace])
253 LB_LINUX_TRY_COMPILE([
256 #include <asm/stacktrace.h>
260 AC_DEFINE(HAVE_DUMP_TRACE, 1, [dump_trace is exported])
265 AC_MSG_CHECKING([whether print_trace_address has reliable argument])
266 LB_LINUX_TRY_COMPILE([
269 #include <asm/stacktrace.h>
271 ((struct stacktrace_ops *)0)->address(NULL, 0, 0);
274 AC_DEFINE(HAVE_TRACE_ADDRESS_RELIABLE, 1,
275 [print_trace_address has reliable argument])
280 AC_MSG_CHECKING([whether stacktrace_ops.warning is exist])
281 LB_LINUX_TRY_COMPILE([
284 #include <asm/stacktrace.h>
286 ((struct stacktrace_ops *)0)->warning(NULL, NULL);
289 AC_DEFINE(HAVE_STACKTRACE_WARNING, 1, [stacktrace_ops.warning is exist])
294 AC_MSG_CHECKING([dump_trace want address])
295 LB_LINUX_TRY_COMPILE([
298 #include <asm/stacktrace.h>
300 dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
303 AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
304 [dump_trace want address argument])
310 EXTRA_KCFLAGS="$tmp_flags"
315 # 2.6.27 have second argument to sock_map_fd
316 AC_DEFUN([LIBCFS_SOCK_MAP_FD_2ARG],
317 [AC_MSG_CHECKING([sock_map_fd have second argument])
318 LB_LINUX_TRY_COMPILE([
319 #include <linux/net.h>
321 sock_map_fd(NULL, 0);
324 AC_DEFINE(HAVE_SOCK_MAP_FD_2ARG, 1,
325 [sock_map_fd have second argument])
332 # LIBCFS_HAVE_IS_COMPAT_TASK
334 # Added in 2.6.17, it wasn't until 2.6.29 that all
335 # Linux architectures have is_compat_task()
337 AC_DEFUN([LIBCFS_HAVE_IS_COMPAT_TASK],
338 [AC_MSG_CHECKING([if is_compat_task() is declared])
339 LB_LINUX_TRY_COMPILE([
340 #include <linux/compat.h>
342 int i __attribute__ ((unused));
343 i = is_compat_task();
346 AC_DEFINE(HAVE_IS_COMPAT_TASK, 1, [is_compat_task() is available])
353 # LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
355 # 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops'
357 AC_DEFUN([LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK],
358 [AC_MSG_CHECKING([if 'struct stacktrace_ops' has 'walk_stack' field])
359 LB_LINUX_TRY_COMPILE([
360 #include <asm/stacktrace.h>
362 ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL);
365 AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1, ['struct stacktrace_ops' has 'walk_stack' field])
371 AC_DEFUN([LIBCFS_HAVE_KEYTYPE_H],
372 [LB_CHECK_FILE([$LINUX/include/linux/key-type.h], [
373 AC_DEFINE(HAVE_LINUX_KEYTYPE_H, 1,
374 [kernel has include/key-type.h])
381 # RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
383 AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR],
384 [AC_MSG_CHECKING([shrinker want self pointer in handler])
385 LB_LINUX_TRY_COMPILE([
386 #include <linux/mm.h>
388 struct shrinker *tmp = NULL;
389 tmp->shrink(tmp, 0, 0);
392 AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
393 [shrinker want self pointer in handler])
400 # 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
402 AC_DEFUN([LIBCFS_SYSCTL_CTLNAME],
403 [AC_MSG_CHECKING([if ctl_table has a ctl_name field])
404 LB_LINUX_TRY_COMPILE([
405 #include <linux/sysctl.h>
408 ct.ctl_name = sizeof(ct);
411 AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1,
412 [ctl_table has ctl_name field])
419 # LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
421 # 2.6.34 adds __add_wait_queue_exclusive
423 AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE],
424 [AC_MSG_CHECKING([if __add_wait_queue_exclusive exists])
425 LB_LINUX_TRY_COMPILE([
426 #include <linux/wait.h>
428 wait_queue_head_t queue;
431 __add_wait_queue_exclusive(&queue, &wait);
434 AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
435 [__add_wait_queue_exclusive exists])
442 # 2.6.35 kernel has sk_sleep function
444 AC_DEFUN([LC_SK_SLEEP],
445 [AC_MSG_CHECKING([if kernel has sk_sleep])
446 LB_LINUX_TRY_COMPILE([
447 #include <net/sock.h>
452 AC_DEFINE(HAVE_SK_SLEEP, 1, [kernel has sk_sleep])
459 # FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
460 # pressure shrinker from Linux 3.0
462 AC_DEFUN([LC_SHRINK_CONTROL],
463 [AC_MSG_CHECKING([shrink_control is present])
464 LB_LINUX_TRY_COMPILE([
465 #include <linux/mm.h>
467 struct shrink_control tmp = {0};
468 tmp.nr_to_scan = sizeof(tmp);
471 AC_DEFINE(HAVE_SHRINK_CONTROL, 1,
472 [shrink_control is present])
479 # FC18 3.7.2-201 unexport sock_map_fd() change to
480 # use sock_alloc_file().
481 # upstream commit 56b31d1c9f1e6a3ad92e7bfe252721e05d92b285
483 AC_DEFUN([LIBCFS_SOCK_ALLOC_FILE],
484 [AC_MSG_CHECKING([sock_alloc_file is exported])
485 LB_CHECK_SYMBOL_EXPORT([sock_alloc_file], [net/socket.c],[
486 LB_LINUX_TRY_COMPILE([
487 #include <linux/net.h>
489 sock_alloc_file(NULL, 0, NULL);
492 AC_DEFINE(HAVE_SOCK_ALLOC_FILE_3ARGS, 1,
493 [sock_alloc_file takes 3 arguments])
496 AC_DEFINE(HAVE_SOCK_ALLOC_FILE, 1,
497 [sock_alloc_file is exported])
506 # LNet linux kernel checks
508 AC_DEFUN([LIBCFS_PROG_LINUX],
510 LIBCFS_CONFIG_PANIC_DUMPLOG
512 LIBCFS_U64_LONG_LONG_LINUX
514 LIBCFS_HAVE_IS_COMPAT_TASK
516 LIBCFS_SYSCTL_UNNUMBERED
517 LIBCFS_FUNC_DUMP_TRACE
518 LIBCFS_HAVE_KEYTYPE_H
524 LIBCFS_SOCK_MAP_FD_2ARG
526 LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
527 LC_SHRINKER_WANT_SHRINK_PTR
529 LIBCFS_SYSCTL_CTLNAME
531 LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
537 LIBCFS_SOCK_ALLOC_FILE
545 AC_DEFUN([LIBCFS_PROG_DARWIN],
546 [LB_DARWIN_CHECK_FUNCS([get_preemption_level])
550 # LIBCFS_PATH_DEFAULTS
552 # default paths for installed files
554 AC_DEFUN([LIBCFS_PATH_DEFAULTS],
561 # other configure checks
563 AC_DEFUN([LIBCFS_CONFIGURE],
564 [# lnet/utils/portals.c
565 AC_CHECK_HEADERS([asm/types.h endian.h sys/ioctl.h])
568 AC_CHECK_HEADERS([linux/version.h])
570 AC_CHECK_TYPE([spinlock_t],
571 [AC_DEFINE(HAVE_SPINLOCK_T, 1, [spinlock_t is defined])],
573 [#include <linux/spinlock.h>])
575 # lnet/utils/wirecheck.c
576 AC_CHECK_FUNCS([strnlen])
578 # lnet/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
579 AC_CHECK_FUNCS([strlcpy])
581 # libcfs/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
582 AC_CHECK_FUNCS([strlcat])
584 AC_CHECK_TYPE([umode_t],
585 [AC_DEFINE(HAVE_UMODE_T, 1, [umode_t is defined])],
587 [#include <asm/types.h>])
589 AC_CHECK_TYPE([__s8],
590 [AC_DEFINE(HAVE___S8, 1, [__s8 is defined])],
592 [#include <asm/types.h>])
594 AC_CHECK_TYPE([__u8],
595 [AC_DEFINE(HAVE___U8, 1, [__u8 is defined])],
597 [#include <asm/types.h>])
599 AC_CHECK_TYPE([__s16],
600 [AC_DEFINE(HAVE___S16, 1, [__s16 is defined])],
602 [#include <asm/types.h>])
604 AC_CHECK_TYPE([__u16],
605 [AC_DEFINE(HAVE___U16, 1, [__u16 is defined])],
607 [#include <asm/types.h>])
609 AC_CHECK_TYPE([__s32],
610 [AC_DEFINE(HAVE___S32, 1, [__s32 is defined])],
612 [#include <asm/types.h>])
614 AC_CHECK_TYPE([__u32],
615 [AC_DEFINE(HAVE___U32, 1, [__u32 is defined])],
617 [#include <asm/types.h>])
619 AC_CHECK_TYPE([__u64],
620 [AC_DEFINE(HAVE___U64, 1, [__u64 is defined])],
622 [#include <asm/types.h>])
624 AC_CHECK_TYPE([__s64],
625 [AC_DEFINE(HAVE___S64, 1, [__s64 is defined])],
627 [#include <asm/types.h>])
629 # check userland __u64 type
630 AC_MSG_CHECKING([userspace __u64 is long long type])
632 CFLAGS="$CFLAGS -Werror"
635 #include <linux/types.h>
636 #include <linux/stddef.h>
638 unsigned long long *data1;
647 AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
648 [__u64 is long long type])
654 # -------- Check for required packages --------------
657 AC_MSG_CHECKING([if efence debugging support is requested])
658 AC_ARG_ENABLE(efence,
659 AC_HELP_STRING([--enable-efence],
660 [use efence library]),
661 [],[enable_efence='no'])
662 AC_MSG_RESULT([$enable_efence])
663 if test "$enable_efence" = "yes" ; then
665 AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
672 # -------- check for -lpthread support ----
673 AC_MSG_CHECKING([whether to use libpthread for libcfs library])
674 AC_ARG_ENABLE([libpthread],
675 AC_HELP_STRING([--disable-libpthread],
676 [disable libpthread]),
677 [],[enable_libpthread=yes])
678 if test "$enable_libpthread" = "yes" ; then
679 AC_CHECK_LIB([pthread], [pthread_create],
680 [ENABLE_LIBPTHREAD="yes"],
681 [ENABLE_LIBPTHREAD="no"])
682 if test "$ENABLE_LIBPTHREAD" = "yes" ; then
683 AC_MSG_RESULT([$ENABLE_LIBPTHREAD])
684 PTHREAD_LIBS="-lpthread"
685 AC_DEFINE([HAVE_LIBPTHREAD], 1, [use libpthread])
688 AC_MSG_RESULT([no libpthread is found])
690 AC_SUBST(PTHREAD_LIBS)
692 AC_MSG_RESULT([no (disabled explicitly)])
693 ENABLE_LIBPTHREAD="no"
695 AC_SUBST(ENABLE_LIBPTHREAD)
701 # LIBCFS_CONDITIONALS
703 # AM_CONDITOINAL defines for lnet
705 AC_DEFUN([LIBCFS_CONDITIONALS],
710 # LIBCFS_CONFIG_FILES
712 # files that should be generated with AC_OUTPUT
714 AC_DEFUN([LIBCFS_CONFIG_FILES],
719 libcfs/autoconf/Makefile
720 libcfs/include/Makefile
721 libcfs/include/libcfs/Makefile
722 libcfs/include/libcfs/linux/Makefile
723 libcfs/include/libcfs/posix/Makefile
724 libcfs/include/libcfs/util/Makefile
725 libcfs/libcfs/Makefile
726 libcfs/libcfs/autoMakefile
727 libcfs/libcfs/linux/Makefile
728 libcfs/libcfs/posix/Makefile
729 libcfs/libcfs/util/Makefile
730 libcfs/include/libcfs/darwin/Makefile
731 libcfs/libcfs/darwin/Makefile