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 # 2.6.24 request not use real numbers for ctl_name
101 AC_DEFUN([LIBCFS_SYSCTL_UNNUMBERED],
102 [AC_MSG_CHECKING([for CTL_UNNUMBERED])
103 LB_LINUX_TRY_COMPILE([
104 #include <linux/sysctl.h>
106 #ifndef CTL_UNNUMBERED
107 #error CTL_UNNUMBERED not exist in kernel
111 AC_DEFINE(HAVE_SYSCTL_UNNUMBERED, 1,
112 [sysctl has CTL_UNNUMBERED])
119 # LIBCFS_FUNC_DUMP_TRACE
121 # 2.6.23 exports dump_trace() so we can dump_stack() on any task
122 # 2.6.24 has stacktrace_ops.address with "reliable" parameter
124 AC_DEFUN([LIBCFS_FUNC_DUMP_TRACE],
125 [LB_CHECK_SYMBOL_EXPORT([dump_trace],
126 [kernel/ksyms.c arch/${LINUX_ARCH%_64}/kernel/traps_64.c arch/x86/kernel/dumpstack_32.c arch/x86/kernel/dumpstack_64.c],[
127 tmp_flags="$EXTRA_KCFLAGS"
128 EXTRA_KCFLAGS="-Werror"
129 AC_MSG_CHECKING([whether we can really use dump_trace])
130 LB_LINUX_TRY_COMPILE([
133 #include <asm/stacktrace.h>
137 AC_DEFINE(HAVE_DUMP_TRACE, 1, [dump_trace is exported])
142 AC_MSG_CHECKING([whether print_trace_address has reliable argument])
143 LB_LINUX_TRY_COMPILE([
146 #include <asm/stacktrace.h>
148 ((struct stacktrace_ops *)0)->address(NULL, 0, 0);
151 AC_DEFINE(HAVE_TRACE_ADDRESS_RELIABLE, 1,
152 [print_trace_address has reliable argument])
157 AC_MSG_CHECKING([whether stacktrace_ops.warning is exist])
158 LB_LINUX_TRY_COMPILE([
161 #include <asm/stacktrace.h>
163 ((struct stacktrace_ops *)0)->warning(NULL, NULL);
166 AC_DEFINE(HAVE_STACKTRACE_WARNING, 1, [stacktrace_ops.warning is exist])
171 AC_MSG_CHECKING([dump_trace want address])
172 LB_LINUX_TRY_COMPILE([
175 #include <asm/stacktrace.h>
177 dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
180 AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
181 [dump_trace want address argument])
187 EXTRA_KCFLAGS="$tmp_flags"
192 # 2.6.27 have second argument to sock_map_fd
193 AC_DEFUN([LIBCFS_SOCK_MAP_FD_2ARG],
194 [AC_MSG_CHECKING([sock_map_fd have second argument])
195 LB_LINUX_TRY_COMPILE([
196 #include <linux/net.h>
198 sock_map_fd(NULL, 0);
201 AC_DEFINE(HAVE_SOCK_MAP_FD_2ARG, 1,
202 [sock_map_fd have second argument])
209 # LIBCFS_HAVE_IS_COMPAT_TASK
211 # Added in 2.6.17, it wasn't until 2.6.29 that all
212 # Linux architectures have is_compat_task()
214 AC_DEFUN([LIBCFS_HAVE_IS_COMPAT_TASK],
215 [AC_MSG_CHECKING([if is_compat_task() is declared])
216 LB_LINUX_TRY_COMPILE([
217 #include <linux/compat.h>
219 int i __attribute__ ((unused));
220 i = is_compat_task();
223 AC_DEFINE(HAVE_IS_COMPAT_TASK, 1, [is_compat_task() is available])
230 # LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
232 # 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops'
234 AC_DEFUN([LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK],
235 [AC_MSG_CHECKING([if 'struct stacktrace_ops' has 'walk_stack' field])
236 LB_LINUX_TRY_COMPILE([
237 #include <asm/stacktrace.h>
239 ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL);
242 AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1, ['struct stacktrace_ops' has 'walk_stack' field])
248 AC_DEFUN([LIBCFS_HAVE_KEYTYPE_H],
249 [LB_CHECK_FILE([$LINUX/include/linux/key-type.h], [
250 AC_DEFINE(HAVE_LINUX_KEYTYPE_H, 1,
251 [kernel has include/key-type.h])
258 # RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
260 AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR],
261 [AC_MSG_CHECKING([shrinker want self pointer in handler])
262 LB_LINUX_TRY_COMPILE([
263 #include <linux/mm.h>
265 struct shrinker *tmp = NULL;
266 tmp->shrink(tmp, 0, 0);
269 AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
270 [shrinker want self pointer in handler])
277 # 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
279 AC_DEFUN([LIBCFS_SYSCTL_CTLNAME],
280 [AC_MSG_CHECKING([if ctl_table has a ctl_name field])
281 LB_LINUX_TRY_COMPILE([
282 #include <linux/sysctl.h>
285 ct.ctl_name = sizeof(ct);
288 AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1,
289 [ctl_table has ctl_name field])
296 # LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
298 # 2.6.34 adds __add_wait_queue_exclusive
300 AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE],
301 [AC_MSG_CHECKING([if __add_wait_queue_exclusive exists])
302 LB_LINUX_TRY_COMPILE([
303 #include <linux/wait.h>
305 wait_queue_head_t queue;
308 __add_wait_queue_exclusive(&queue, &wait);
311 AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
312 [__add_wait_queue_exclusive exists])
319 # 2.6.35 kernel has sk_sleep function
321 AC_DEFUN([LC_SK_SLEEP],
322 [AC_MSG_CHECKING([if kernel has sk_sleep])
323 LB_LINUX_TRY_COMPILE([
324 #include <net/sock.h>
329 AC_DEFINE(HAVE_SK_SLEEP, 1, [kernel has sk_sleep])
336 # FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
337 # pressure shrinker from Linux 3.0
339 AC_DEFUN([LC_SHRINK_CONTROL],
340 [AC_MSG_CHECKING([shrink_control is present])
341 LB_LINUX_TRY_COMPILE([
342 #include <linux/mm.h>
344 struct shrink_control tmp = {0};
345 tmp.nr_to_scan = sizeof(tmp);
348 AC_DEFINE(HAVE_SHRINK_CONTROL, 1,
349 [shrink_control is present])
356 # FC18 3.7.2-201 unexport sock_map_fd() change to
357 # use sock_alloc_file().
358 # upstream commit 56b31d1c9f1e6a3ad92e7bfe252721e05d92b285
360 AC_DEFUN([LIBCFS_SOCK_ALLOC_FILE],
361 [AC_MSG_CHECKING([sock_alloc_file is exported])
362 LB_CHECK_SYMBOL_EXPORT([sock_alloc_file], [net/socket.c],[
363 LB_LINUX_TRY_COMPILE([
364 #include <linux/net.h>
366 sock_alloc_file(NULL, 0, NULL);
369 AC_DEFINE(HAVE_SOCK_ALLOC_FILE_3ARGS, 1,
370 [sock_alloc_file takes 3 arguments])
373 AC_DEFINE(HAVE_SOCK_ALLOC_FILE, 1,
374 [sock_alloc_file is exported])
383 # LNet linux kernel checks
385 AC_DEFUN([LIBCFS_PROG_LINUX],
387 LIBCFS_CONFIG_PANIC_DUMPLOG
389 LIBCFS_U64_LONG_LONG_LINUX
391 LIBCFS_HAVE_IS_COMPAT_TASK
393 LIBCFS_SYSCTL_UNNUMBERED
394 LIBCFS_FUNC_DUMP_TRACE
395 LIBCFS_HAVE_KEYTYPE_H
397 LIBCFS_SOCK_MAP_FD_2ARG
399 LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
400 LC_SHRINKER_WANT_SHRINK_PTR
402 LIBCFS_SYSCTL_CTLNAME
404 LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
410 LIBCFS_SOCK_ALLOC_FILE
418 AC_DEFUN([LIBCFS_PROG_DARWIN],
419 [LB_DARWIN_CHECK_FUNCS([get_preemption_level])
423 # LIBCFS_PATH_DEFAULTS
425 # default paths for installed files
427 AC_DEFUN([LIBCFS_PATH_DEFAULTS],
434 # other configure checks
436 AC_DEFUN([LIBCFS_CONFIGURE],
437 [# lnet/utils/portals.c
438 AC_CHECK_HEADERS([asm/types.h endian.h sys/ioctl.h])
441 AC_CHECK_HEADERS([linux/version.h])
443 AC_CHECK_TYPE([spinlock_t],
444 [AC_DEFINE(HAVE_SPINLOCK_T, 1, [spinlock_t is defined])],
446 [#include <linux/spinlock.h>])
448 # lnet/utils/wirecheck.c
449 AC_CHECK_FUNCS([strnlen])
451 # lnet/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
452 AC_CHECK_FUNCS([strlcpy])
454 # libcfs/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
455 AC_CHECK_FUNCS([strlcat])
457 AC_CHECK_TYPE([umode_t],
458 [AC_DEFINE(HAVE_UMODE_T, 1, [umode_t is defined])],
460 [#include <asm/types.h>])
462 AC_CHECK_TYPE([__s8],
463 [AC_DEFINE(HAVE___S8, 1, [__s8 is defined])],
465 [#include <asm/types.h>])
467 AC_CHECK_TYPE([__u8],
468 [AC_DEFINE(HAVE___U8, 1, [__u8 is defined])],
470 [#include <asm/types.h>])
472 AC_CHECK_TYPE([__s16],
473 [AC_DEFINE(HAVE___S16, 1, [__s16 is defined])],
475 [#include <asm/types.h>])
477 AC_CHECK_TYPE([__u16],
478 [AC_DEFINE(HAVE___U16, 1, [__u16 is defined])],
480 [#include <asm/types.h>])
482 AC_CHECK_TYPE([__s32],
483 [AC_DEFINE(HAVE___S32, 1, [__s32 is defined])],
485 [#include <asm/types.h>])
487 AC_CHECK_TYPE([__u32],
488 [AC_DEFINE(HAVE___U32, 1, [__u32 is defined])],
490 [#include <asm/types.h>])
492 AC_CHECK_TYPE([__u64],
493 [AC_DEFINE(HAVE___U64, 1, [__u64 is defined])],
495 [#include <asm/types.h>])
497 AC_CHECK_TYPE([__s64],
498 [AC_DEFINE(HAVE___S64, 1, [__s64 is defined])],
500 [#include <asm/types.h>])
502 # check userland __u64 type
503 AC_MSG_CHECKING([userspace __u64 is long long type])
505 CFLAGS="$CFLAGS -Werror"
508 #include <linux/types.h>
509 #include <linux/stddef.h>
511 unsigned long long *data1;
520 AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
521 [__u64 is long long type])
527 # -------- Check for required packages --------------
530 AC_MSG_CHECKING([if efence debugging support is requested])
531 AC_ARG_ENABLE(efence,
532 AC_HELP_STRING([--enable-efence],
533 [use efence library]),
534 [],[enable_efence='no'])
535 AC_MSG_RESULT([$enable_efence])
536 if test "$enable_efence" = "yes" ; then
538 AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
545 # -------- check for -lpthread support ----
546 AC_MSG_CHECKING([whether to use libpthread for libcfs library])
547 AC_ARG_ENABLE([libpthread],
548 AC_HELP_STRING([--disable-libpthread],
549 [disable libpthread]),
550 [],[enable_libpthread=yes])
551 if test "$enable_libpthread" = "yes" ; then
552 AC_CHECK_LIB([pthread], [pthread_create],
553 [ENABLE_LIBPTHREAD="yes"],
554 [ENABLE_LIBPTHREAD="no"])
555 if test "$ENABLE_LIBPTHREAD" = "yes" ; then
556 AC_MSG_RESULT([$ENABLE_LIBPTHREAD])
557 PTHREAD_LIBS="-lpthread"
558 AC_DEFINE([HAVE_LIBPTHREAD], 1, [use libpthread])
561 AC_MSG_RESULT([no libpthread is found])
563 AC_SUBST(PTHREAD_LIBS)
565 AC_MSG_RESULT([no (disabled explicitly)])
566 ENABLE_LIBPTHREAD="no"
568 AC_SUBST(ENABLE_LIBPTHREAD)
574 # LIBCFS_CONDITIONALS
576 # AM_CONDITOINAL defines for lnet
578 AC_DEFUN([LIBCFS_CONDITIONALS],
583 # LIBCFS_CONFIG_FILES
585 # files that should be generated with AC_OUTPUT
587 AC_DEFUN([LIBCFS_CONFIG_FILES],
592 libcfs/autoconf/Makefile
593 libcfs/include/Makefile
594 libcfs/include/libcfs/Makefile
595 libcfs/include/libcfs/linux/Makefile
596 libcfs/include/libcfs/posix/Makefile
597 libcfs/include/libcfs/util/Makefile
598 libcfs/libcfs/Makefile
599 libcfs/libcfs/autoMakefile
600 libcfs/libcfs/linux/Makefile
601 libcfs/libcfs/posix/Makefile
602 libcfs/libcfs/util/Makefile
603 libcfs/include/libcfs/darwin/Makefile
604 libcfs/libcfs/darwin/Makefile