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 # 2.6.24 request not use real numbers for ctl_name
86 AC_DEFUN([LIBCFS_SYSCTL_UNNUMBERED],
87 [AC_MSG_CHECKING([for CTL_UNNUMBERED])
88 LB_LINUX_TRY_COMPILE([
89 #include <linux/sysctl.h>
91 #ifndef CTL_UNNUMBERED
92 #error CTL_UNNUMBERED not exist in kernel
96 AC_DEFINE(HAVE_SYSCTL_UNNUMBERED, 1,
97 [sysctl has CTL_UNNUMBERED])
104 # LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
106 # 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops'
108 AC_DEFUN([LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK],
109 [AC_MSG_CHECKING([if 'struct stacktrace_ops' has 'walk_stack' field])
110 LB_LINUX_TRY_COMPILE([
111 #include <asm/stacktrace.h>
113 ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL);
116 AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1, ['struct stacktrace_ops' has 'walk_stack' field])
123 # RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
125 AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR],
126 [AC_MSG_CHECKING([shrinker want self pointer in handler])
127 LB_LINUX_TRY_COMPILE([
128 #include <linux/mm.h>
130 struct shrinker *tmp = NULL;
131 tmp->shrink(tmp, 0, 0);
134 AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
135 [shrinker want self pointer in handler])
142 # 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
144 AC_DEFUN([LIBCFS_SYSCTL_CTLNAME],
145 [AC_MSG_CHECKING([if ctl_table has a ctl_name field])
146 LB_LINUX_TRY_COMPILE([
147 #include <linux/sysctl.h>
150 ct.ctl_name = sizeof(ct);
153 AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1,
154 [ctl_table has ctl_name field])
161 # LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
163 # 2.6.34 adds __add_wait_queue_exclusive
165 AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE],
166 [AC_MSG_CHECKING([if __add_wait_queue_exclusive exists])
167 LB_LINUX_TRY_COMPILE([
168 #include <linux/wait.h>
170 wait_queue_head_t queue;
173 __add_wait_queue_exclusive(&queue, &wait);
176 AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
177 [__add_wait_queue_exclusive exists])
184 # 2.6.35 kernel has sk_sleep function
186 AC_DEFUN([LC_SK_SLEEP],
187 [AC_MSG_CHECKING([if kernel has sk_sleep])
188 LB_LINUX_TRY_COMPILE([
189 #include <net/sock.h>
194 AC_DEFINE(HAVE_SK_SLEEP, 1, [kernel has sk_sleep])
201 # 2.6.39 adds a base pointer address argument to dump_trace
202 AC_DEFUN([LIBCFS_DUMP_TRACE_ADDRESS],
203 [AC_MSG_CHECKING([dump_trace want address])
204 LB_LINUX_TRY_COMPILE([
207 #include <asm/stacktrace.h>
209 dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
212 AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
213 [dump_trace want address argument])
221 # FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
222 # pressure shrinker from Linux 3.0
224 AC_DEFUN([LC_SHRINK_CONTROL],
225 [AC_MSG_CHECKING([shrink_control is present])
226 LB_LINUX_TRY_COMPILE([
227 #include <linux/mm.h>
229 struct shrink_control tmp = {0};
230 tmp.nr_to_scan = sizeof(tmp);
233 AC_DEFINE(HAVE_SHRINK_CONTROL, 1,
234 [shrink_control is present])
240 # 3.0 removes stacktrace_ops warning* functions
241 AC_DEFUN([LIBCFS_STACKTRACE_WARNING],
242 [AC_MSG_CHECKING([whether stacktrace_ops.warning is exist])
243 LB_LINUX_TRY_COMPILE([
246 #include <asm/stacktrace.h>
248 ((struct stacktrace_ops *)0)->warning(NULL, NULL);
251 AC_DEFINE(HAVE_STACKTRACE_WARNING, 1, [stacktrace_ops.warning is exist])
259 # FC18 3.7.2-201 unexport sock_map_fd() change to
260 # use sock_alloc_file().
261 # upstream commit 56b31d1c9f1e6a3ad92e7bfe252721e05d92b285
263 AC_DEFUN([LIBCFS_SOCK_ALLOC_FILE],
264 [AC_MSG_CHECKING([sock_alloc_file is exported])
265 LB_CHECK_SYMBOL_EXPORT([sock_alloc_file], [net/socket.c],[
266 LB_LINUX_TRY_COMPILE([
267 #include <linux/net.h>
269 sock_alloc_file(NULL, 0, NULL);
272 AC_DEFINE(HAVE_SOCK_ALLOC_FILE_3ARGS, 1,
273 [sock_alloc_file takes 3 arguments])
276 AC_DEFINE(HAVE_SOCK_ALLOC_FILE, 1,
277 [sock_alloc_file is exported])
283 AC_DEFUN([LIBCFS_HAVE_CRC32],
284 [LB_LINUX_CONFIG_IM([CRC32],
285 [have_crc32=true],[have_crc32=false])
286 if test x$have_crc32 = xtrue; then
287 AC_DEFINE(HAVE_CRC32, 1, [kernel compiled with CRC32 functions])
291 AC_DEFUN([LIBCFS_ENABLE_CRC32_ACCEL],
292 [LB_LINUX_CONFIG_IM([CRYPTO_CRC32_PCLMUL],
293 [enable_crc32_crypto=false],[enable_crc32_crypto=true])
294 if test x$have_crc32 = xtrue -a x$enable_crc32_crypto = xtrue; then
295 AC_DEFINE(NEED_CRC32_ACCEL, 1, [need pclmulqdq based crc32])
296 AC_MSG_WARN([No crc32 pclmulqdq crypto api found,
297 enable internal pclmulqdq based crc32])
301 AC_DEFUN([LIBCFS_ENABLE_CRC32C_ACCEL],
302 [LB_LINUX_CONFIG_IM([CRYPTO_CRC32C_INTEL],
303 [enable_crc32c_crypto=false],[enable_crc32c_crypto=true])
304 if test x$enable_crc32c_crypto = xtrue; then
305 AC_DEFINE(NEED_CRC32C_ACCEL, 1, [need pclmulqdq based crc32c])
306 AC_MSG_WARN([No crc32c pclmulqdq crypto api found,
307 enable internal pclmulqdq based crc32c])
314 # LNet linux kernel checks
316 AC_DEFUN([LIBCFS_PROG_LINUX],
318 LIBCFS_CONFIG_PANIC_DUMPLOG
320 LIBCFS_U64_LONG_LONG_LINUX
322 LIBCFS_SYSCTL_UNNUMBERED
324 LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
325 LC_SHRINKER_WANT_SHRINK_PTR
327 LIBCFS_SYSCTL_CTLNAME
329 LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
333 LIBCFS_DUMP_TRACE_ADDRESS
337 LIBCFS_STACKTRACE_WARNING
339 LIBCFS_SOCK_ALLOC_FILE
342 LIBCFS_ENABLE_CRC32_ACCEL
344 LIBCFS_ENABLE_CRC32C_ACCEL
352 AC_DEFUN([LIBCFS_PROG_DARWIN],
353 [LB_DARWIN_CHECK_FUNCS([get_preemption_level])
357 # LIBCFS_PATH_DEFAULTS
359 # default paths for installed files
361 AC_DEFUN([LIBCFS_PATH_DEFAULTS],
368 # other configure checks
370 AC_DEFUN([LIBCFS_CONFIGURE],
371 [# lnet/utils/portals.c
372 AC_CHECK_HEADERS([asm/types.h endian.h sys/ioctl.h])
375 AC_CHECK_HEADERS([linux/version.h])
377 AC_CHECK_TYPE([spinlock_t],
378 [AC_DEFINE(HAVE_SPINLOCK_T, 1, [spinlock_t is defined])],
380 [#include <linux/spinlock.h>])
382 # lnet/utils/wirecheck.c
383 AC_CHECK_FUNCS([strnlen])
385 # lnet/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
386 AC_CHECK_FUNCS([strlcpy])
388 # libcfs/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
389 AC_CHECK_FUNCS([strlcat])
391 AC_CHECK_TYPE([umode_t],
392 [AC_DEFINE(HAVE_UMODE_T, 1, [umode_t is defined])],
394 [#include <asm/types.h>])
396 AC_CHECK_TYPE([__s8],
397 [AC_DEFINE(HAVE___S8, 1, [__s8 is defined])],
399 [#include <asm/types.h>])
401 AC_CHECK_TYPE([__u8],
402 [AC_DEFINE(HAVE___U8, 1, [__u8 is defined])],
404 [#include <asm/types.h>])
406 AC_CHECK_TYPE([__s16],
407 [AC_DEFINE(HAVE___S16, 1, [__s16 is defined])],
409 [#include <asm/types.h>])
411 AC_CHECK_TYPE([__u16],
412 [AC_DEFINE(HAVE___U16, 1, [__u16 is defined])],
414 [#include <asm/types.h>])
416 AC_CHECK_TYPE([__s32],
417 [AC_DEFINE(HAVE___S32, 1, [__s32 is defined])],
419 [#include <asm/types.h>])
421 AC_CHECK_TYPE([__u32],
422 [AC_DEFINE(HAVE___U32, 1, [__u32 is defined])],
424 [#include <asm/types.h>])
426 AC_CHECK_TYPE([__u64],
427 [AC_DEFINE(HAVE___U64, 1, [__u64 is defined])],
429 [#include <asm/types.h>])
431 AC_CHECK_TYPE([__s64],
432 [AC_DEFINE(HAVE___S64, 1, [__s64 is defined])],
434 [#include <asm/types.h>])
436 # check userland __u64 type
437 AC_MSG_CHECKING([userspace __u64 is long long type])
439 CFLAGS="$CFLAGS -Werror"
442 #include <linux/types.h>
443 #include <linux/stddef.h>
445 unsigned long long *data1;
454 AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
455 [__u64 is long long type])
461 # -------- Check for required packages --------------
464 AC_MSG_CHECKING([if efence debugging support is requested])
465 AC_ARG_ENABLE(efence,
466 AC_HELP_STRING([--enable-efence],
467 [use efence library]),
468 [],[enable_efence='no'])
469 AC_MSG_RESULT([$enable_efence])
470 if test "$enable_efence" = "yes" ; then
472 AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
479 # -------- check for -lpthread support ----
480 AC_MSG_CHECKING([whether to use libpthread for libcfs library])
481 AC_ARG_ENABLE([libpthread],
482 AC_HELP_STRING([--disable-libpthread],
483 [disable libpthread]),
484 [],[enable_libpthread=yes])
485 if test "$enable_libpthread" = "yes" ; then
486 AC_CHECK_LIB([pthread], [pthread_create],
487 [ENABLE_LIBPTHREAD="yes"],
488 [ENABLE_LIBPTHREAD="no"])
489 if test "$ENABLE_LIBPTHREAD" = "yes" ; then
490 AC_MSG_RESULT([$ENABLE_LIBPTHREAD])
491 PTHREAD_LIBS="-lpthread"
492 AC_DEFINE([HAVE_LIBPTHREAD], 1, [use libpthread])
495 AC_MSG_RESULT([no libpthread is found])
497 AC_SUBST(PTHREAD_LIBS)
499 AC_MSG_RESULT([no (disabled explicitly)])
500 ENABLE_LIBPTHREAD="no"
502 AC_SUBST(ENABLE_LIBPTHREAD)
508 # LIBCFS_CONDITIONALS
510 # AM_CONDITOINAL defines for lnet
512 AC_DEFUN([LIBCFS_CONDITIONALS],
514 AM_CONDITIONAL(HAVE_CRC32, test x$have_crc32 = xtrue)
515 AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32, test x$have_crc32 = xtrue -a x$enable_crc32_crypto = xtrue)
516 AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32C, test x$enable_crc32c_crypto = xtrue)
520 # LIBCFS_CONFIG_FILES
522 # files that should be generated with AC_OUTPUT
524 AC_DEFUN([LIBCFS_CONFIG_FILES],
529 libcfs/autoconf/Makefile
530 libcfs/include/Makefile
531 libcfs/include/libcfs/Makefile
532 libcfs/include/libcfs/linux/Makefile
533 libcfs/include/libcfs/posix/Makefile
534 libcfs/include/libcfs/util/Makefile
535 libcfs/libcfs/Makefile
536 libcfs/libcfs/autoMakefile
537 libcfs/libcfs/linux/Makefile
538 libcfs/libcfs/posix/Makefile
539 libcfs/libcfs/util/Makefile
540 libcfs/include/libcfs/darwin/Makefile
541 libcfs/libcfs/darwin/Makefile