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"
86 # LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
88 # 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops'
90 AC_DEFUN([LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK],
91 [AC_MSG_CHECKING([if 'struct stacktrace_ops' has 'walk_stack' field])
92 LB_LINUX_TRY_COMPILE([
93 #include <asm/stacktrace.h>
95 ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL);
98 AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1, ['struct stacktrace_ops' has 'walk_stack' field])
105 # RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
107 AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR],
108 [AC_MSG_CHECKING([shrinker want self pointer in handler])
109 LB_LINUX_TRY_COMPILE([
110 #include <linux/mm.h>
112 struct shrinker *tmp = NULL;
113 tmp->shrink(tmp, 0, 0);
116 AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
117 [shrinker want self pointer in handler])
124 # 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
126 AC_DEFUN([LIBCFS_SYSCTL_CTLNAME],
127 [AC_MSG_CHECKING([if ctl_table has a ctl_name field])
128 LB_LINUX_TRY_COMPILE([
129 #include <linux/sysctl.h>
132 ct.ctl_name = sizeof(ct);
135 AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1,
136 [ctl_table has ctl_name field])
143 # LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
145 # 2.6.34 adds __add_wait_queue_exclusive
147 AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE],
148 [AC_MSG_CHECKING([if __add_wait_queue_exclusive exists])
149 LB_LINUX_TRY_COMPILE([
150 #include <linux/wait.h>
152 wait_queue_head_t queue;
155 __add_wait_queue_exclusive(&queue, &wait);
158 AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
159 [__add_wait_queue_exclusive exists])
166 # 2.6.35 kernel has sk_sleep function
168 AC_DEFUN([LC_SK_SLEEP],
169 [AC_MSG_CHECKING([if kernel has sk_sleep])
170 LB_LINUX_TRY_COMPILE([
171 #include <net/sock.h>
176 AC_DEFINE(HAVE_SK_SLEEP, 1, [kernel has sk_sleep])
183 # 2.6.39 adds a base pointer address argument to dump_trace
184 AC_DEFUN([LIBCFS_DUMP_TRACE_ADDRESS],
185 [AC_MSG_CHECKING([dump_trace want address])
186 LB_LINUX_TRY_COMPILE([
189 #include <asm/stacktrace.h>
191 dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
194 AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
195 [dump_trace want address argument])
203 # FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
204 # pressure shrinker from Linux 3.0
206 AC_DEFUN([LC_SHRINK_CONTROL],
207 [AC_MSG_CHECKING([shrink_control is present])
208 LB_LINUX_TRY_COMPILE([
209 #include <linux/mm.h>
211 struct shrink_control tmp = {0};
212 tmp.nr_to_scan = sizeof(tmp);
215 AC_DEFINE(HAVE_SHRINK_CONTROL, 1,
216 [shrink_control is present])
222 # 3.0 removes stacktrace_ops warning* functions
223 AC_DEFUN([LIBCFS_STACKTRACE_WARNING],
224 [AC_MSG_CHECKING([whether stacktrace_ops.warning is exist])
225 LB_LINUX_TRY_COMPILE([
228 #include <asm/stacktrace.h>
230 ((struct stacktrace_ops *)0)->warning(NULL, NULL);
233 AC_DEFINE(HAVE_STACKTRACE_WARNING, 1, [stacktrace_ops.warning is exist])
241 # FC18 3.7.2-201 unexport sock_map_fd() change to
242 # use sock_alloc_file().
243 # upstream commit 56b31d1c9f1e6a3ad92e7bfe252721e05d92b285
245 AC_DEFUN([LIBCFS_SOCK_ALLOC_FILE],
246 [AC_MSG_CHECKING([sock_alloc_file is exported])
247 LB_CHECK_SYMBOL_EXPORT([sock_alloc_file], [net/socket.c],[
248 LB_LINUX_TRY_COMPILE([
249 #include <linux/net.h>
251 sock_alloc_file(NULL, 0, NULL);
254 AC_DEFINE(HAVE_SOCK_ALLOC_FILE_3ARGS, 1,
255 [sock_alloc_file takes 3 arguments])
258 AC_DEFINE(HAVE_SOCK_ALLOC_FILE, 1,
259 [sock_alloc_file is exported])
265 AC_DEFUN([LIBCFS_HAVE_CRC32],
266 [LB_LINUX_CONFIG_IM([CRC32],
267 [have_crc32=true],[have_crc32=false])
268 if test x$have_crc32 = xtrue; then
269 AC_DEFINE(HAVE_CRC32, 1, [kernel compiled with CRC32 functions])
273 AC_DEFUN([LIBCFS_ENABLE_CRC32_ACCEL],
274 [LB_LINUX_CONFIG_IM([CRYPTO_CRC32_PCLMUL],
275 [enable_crc32_crypto=false],[enable_crc32_crypto=true])
276 if test x$have_crc32 = xtrue -a x$enable_crc32_crypto = xtrue; then
277 AC_DEFINE(NEED_CRC32_ACCEL, 1, [need pclmulqdq based crc32])
278 AC_MSG_WARN([No crc32 pclmulqdq crypto api found,
279 enable internal pclmulqdq based crc32])
283 AC_DEFUN([LIBCFS_ENABLE_CRC32C_ACCEL],
284 [LB_LINUX_CONFIG_IM([CRYPTO_CRC32C_INTEL],
285 [enable_crc32c_crypto=false],[enable_crc32c_crypto=true])
286 if test x$enable_crc32c_crypto = xtrue; then
287 AC_DEFINE(NEED_CRC32C_ACCEL, 1, [need pclmulqdq based crc32c])
288 AC_MSG_WARN([No crc32c pclmulqdq crypto api found,
289 enable internal pclmulqdq based crc32c])
296 # LNet linux kernel checks
298 AC_DEFUN([LIBCFS_PROG_LINUX],
300 LIBCFS_CONFIG_PANIC_DUMPLOG
302 LIBCFS_U64_LONG_LONG_LINUX
304 LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
305 LC_SHRINKER_WANT_SHRINK_PTR
307 LIBCFS_SYSCTL_CTLNAME
309 LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
313 LIBCFS_DUMP_TRACE_ADDRESS
317 LIBCFS_STACKTRACE_WARNING
319 LIBCFS_SOCK_ALLOC_FILE
322 LIBCFS_ENABLE_CRC32_ACCEL
324 LIBCFS_ENABLE_CRC32C_ACCEL
332 AC_DEFUN([LIBCFS_PROG_DARWIN],
333 [LB_DARWIN_CHECK_FUNCS([get_preemption_level])
337 # LIBCFS_PATH_DEFAULTS
339 # default paths for installed files
341 AC_DEFUN([LIBCFS_PATH_DEFAULTS],
348 # other configure checks
350 AC_DEFUN([LIBCFS_CONFIGURE],
351 [# lnet/utils/portals.c
352 AC_CHECK_HEADERS([asm/types.h endian.h sys/ioctl.h])
355 AC_CHECK_HEADERS([linux/version.h])
357 AC_CHECK_TYPE([spinlock_t],
358 [AC_DEFINE(HAVE_SPINLOCK_T, 1, [spinlock_t is defined])],
360 [#include <linux/spinlock.h>])
362 # lnet/utils/wirecheck.c
363 AC_CHECK_FUNCS([strnlen])
365 # lnet/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
366 AC_CHECK_FUNCS([strlcpy])
368 # libcfs/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
369 AC_CHECK_FUNCS([strlcat])
371 AC_CHECK_TYPE([umode_t],
372 [AC_DEFINE(HAVE_UMODE_T, 1, [umode_t is defined])],
374 [#include <asm/types.h>])
376 AC_CHECK_TYPE([__s8],
377 [AC_DEFINE(HAVE___S8, 1, [__s8 is defined])],
379 [#include <asm/types.h>])
381 AC_CHECK_TYPE([__u8],
382 [AC_DEFINE(HAVE___U8, 1, [__u8 is defined])],
384 [#include <asm/types.h>])
386 AC_CHECK_TYPE([__s16],
387 [AC_DEFINE(HAVE___S16, 1, [__s16 is defined])],
389 [#include <asm/types.h>])
391 AC_CHECK_TYPE([__u16],
392 [AC_DEFINE(HAVE___U16, 1, [__u16 is defined])],
394 [#include <asm/types.h>])
396 AC_CHECK_TYPE([__s32],
397 [AC_DEFINE(HAVE___S32, 1, [__s32 is defined])],
399 [#include <asm/types.h>])
401 AC_CHECK_TYPE([__u32],
402 [AC_DEFINE(HAVE___U32, 1, [__u32 is defined])],
404 [#include <asm/types.h>])
406 AC_CHECK_TYPE([__u64],
407 [AC_DEFINE(HAVE___U64, 1, [__u64 is defined])],
409 [#include <asm/types.h>])
411 AC_CHECK_TYPE([__s64],
412 [AC_DEFINE(HAVE___S64, 1, [__s64 is defined])],
414 [#include <asm/types.h>])
416 # check userland __u64 type
417 AC_MSG_CHECKING([userspace __u64 is long long type])
419 CFLAGS="$CFLAGS -Werror"
422 #include <linux/types.h>
423 #include <linux/stddef.h>
425 unsigned long long *data1;
434 AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
435 [__u64 is long long type])
441 # -------- Check for required packages --------------
444 AC_MSG_CHECKING([if efence debugging support is requested])
445 AC_ARG_ENABLE(efence,
446 AC_HELP_STRING([--enable-efence],
447 [use efence library]),
448 [],[enable_efence='no'])
449 AC_MSG_RESULT([$enable_efence])
450 if test "$enable_efence" = "yes" ; then
452 AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
459 # -------- check for -lpthread support ----
460 AC_MSG_CHECKING([whether to use libpthread for libcfs library])
461 AC_ARG_ENABLE([libpthread],
462 AC_HELP_STRING([--disable-libpthread],
463 [disable libpthread]),
464 [],[enable_libpthread=yes])
465 if test "$enable_libpthread" = "yes" ; then
466 AC_CHECK_LIB([pthread], [pthread_create],
467 [ENABLE_LIBPTHREAD="yes"],
468 [ENABLE_LIBPTHREAD="no"])
469 if test "$ENABLE_LIBPTHREAD" = "yes" ; then
470 AC_MSG_RESULT([$ENABLE_LIBPTHREAD])
471 PTHREAD_LIBS="-lpthread"
472 AC_DEFINE([HAVE_LIBPTHREAD], 1, [use libpthread])
475 AC_MSG_RESULT([no libpthread is found])
477 AC_SUBST(PTHREAD_LIBS)
479 AC_MSG_RESULT([no (disabled explicitly)])
480 ENABLE_LIBPTHREAD="no"
482 AC_SUBST(ENABLE_LIBPTHREAD)
488 # LIBCFS_CONDITIONALS
490 # AM_CONDITOINAL defines for lnet
492 AC_DEFUN([LIBCFS_CONDITIONALS],
494 AM_CONDITIONAL(HAVE_CRC32, test x$have_crc32 = xtrue)
495 AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32, test x$have_crc32 = xtrue -a x$enable_crc32_crypto = xtrue)
496 AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32C, test x$enable_crc32c_crypto = xtrue)
500 # LIBCFS_CONFIG_FILES
502 # files that should be generated with AC_OUTPUT
504 AC_DEFUN([LIBCFS_CONFIG_FILES],
509 libcfs/autoconf/Makefile
510 libcfs/include/Makefile
511 libcfs/include/libcfs/Makefile
512 libcfs/include/libcfs/linux/Makefile
513 libcfs/include/libcfs/posix/Makefile
514 libcfs/include/libcfs/util/Makefile
515 libcfs/libcfs/Makefile
516 libcfs/libcfs/autoMakefile
517 libcfs/libcfs/linux/Makefile
518 libcfs/libcfs/posix/Makefile
519 libcfs/libcfs/util/Makefile
520 libcfs/include/libcfs/darwin/Makefile
521 libcfs/libcfs/darwin/Makefile