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 [LB_CHECK_SYMBOL_EXPORT([sock_alloc_file], [net/socket.c],[
247 LB_LINUX_TRY_COMPILE([
248 #include <linux/net.h>
250 sock_alloc_file(NULL, 0, NULL);
252 AC_DEFINE(HAVE_SOCK_ALLOC_FILE_3ARGS, 1,
253 [sock_alloc_file takes 3 arguments])
255 AC_DEFINE(HAVE_SOCK_ALLOC_FILE, 1,
256 [sock_alloc_file is exported])
262 AC_DEFUN([LIBCFS_HAVE_CRC32],
263 [LB_LINUX_CONFIG_IM([CRC32],
264 [have_crc32=true],[have_crc32=false])
265 if test x$have_crc32 = xtrue; then
266 AC_DEFINE(HAVE_CRC32, 1, [kernel compiled with CRC32 functions])
270 AC_DEFUN([LIBCFS_ENABLE_CRC32_ACCEL],
271 [LB_LINUX_CONFIG_IM([CRYPTO_CRC32_PCLMUL],
272 [enable_crc32_crypto=false],[enable_crc32_crypto=true])
273 if test x$have_crc32 = xtrue -a x$enable_crc32_crypto = xtrue; then
274 AC_DEFINE(NEED_CRC32_ACCEL, 1, [need pclmulqdq based crc32])
277 No crc32 pclmulqdq crypto api found, enable internal pclmulqdq based crc32
282 AC_DEFUN([LIBCFS_ENABLE_CRC32C_ACCEL],
283 [LB_LINUX_CONFIG_IM([CRYPTO_CRC32C_INTEL],
284 [enable_crc32c_crypto=false],[enable_crc32c_crypto=true])
285 if test x$enable_crc32c_crypto = xtrue; then
286 AC_DEFINE(NEED_CRC32C_ACCEL, 1, [need pclmulqdq based crc32c])
289 No crc32c pclmulqdq crypto api found, enable internal pclmulqdq based crc32c
297 # LNet linux kernel checks
299 AC_DEFUN([LIBCFS_PROG_LINUX],
301 LIBCFS_CONFIG_PANIC_DUMPLOG
303 LIBCFS_U64_LONG_LONG_LINUX
305 LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
306 LC_SHRINKER_WANT_SHRINK_PTR
308 LIBCFS_SYSCTL_CTLNAME
310 LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
314 LIBCFS_DUMP_TRACE_ADDRESS
318 LIBCFS_STACKTRACE_WARNING
320 LIBCFS_SOCK_ALLOC_FILE
323 LIBCFS_ENABLE_CRC32_ACCEL
325 LIBCFS_ENABLE_CRC32C_ACCEL
333 AC_DEFUN([LIBCFS_PROG_DARWIN],
334 [LB_DARWIN_CHECK_FUNCS([get_preemption_level])
338 # LIBCFS_PATH_DEFAULTS
340 # default paths for installed files
342 AC_DEFUN([LIBCFS_PATH_DEFAULTS],
349 # other configure checks
351 AC_DEFUN([LIBCFS_CONFIGURE],
352 [# lnet/utils/portals.c
353 AC_CHECK_HEADERS([asm/types.h endian.h sys/ioctl.h])
356 AC_CHECK_HEADERS([linux/version.h])
358 AC_CHECK_TYPE([spinlock_t],
359 [AC_DEFINE(HAVE_SPINLOCK_T, 1, [spinlock_t is defined])],
361 [#include <linux/spinlock.h>])
363 # lnet/utils/wirecheck.c
364 AC_CHECK_FUNCS([strnlen])
366 # lnet/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
367 AC_CHECK_FUNCS([strlcpy])
369 # libcfs/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
370 AC_CHECK_FUNCS([strlcat])
372 AC_CHECK_TYPE([umode_t],
373 [AC_DEFINE(HAVE_UMODE_T, 1, [umode_t is defined])],
375 [#include <asm/types.h>])
377 AC_CHECK_TYPE([__s8],
378 [AC_DEFINE(HAVE___S8, 1, [__s8 is defined])],
380 [#include <asm/types.h>])
382 AC_CHECK_TYPE([__u8],
383 [AC_DEFINE(HAVE___U8, 1, [__u8 is defined])],
385 [#include <asm/types.h>])
387 AC_CHECK_TYPE([__s16],
388 [AC_DEFINE(HAVE___S16, 1, [__s16 is defined])],
390 [#include <asm/types.h>])
392 AC_CHECK_TYPE([__u16],
393 [AC_DEFINE(HAVE___U16, 1, [__u16 is defined])],
395 [#include <asm/types.h>])
397 AC_CHECK_TYPE([__s32],
398 [AC_DEFINE(HAVE___S32, 1, [__s32 is defined])],
400 [#include <asm/types.h>])
402 AC_CHECK_TYPE([__u32],
403 [AC_DEFINE(HAVE___U32, 1, [__u32 is defined])],
405 [#include <asm/types.h>])
407 AC_CHECK_TYPE([__u64],
408 [AC_DEFINE(HAVE___U64, 1, [__u64 is defined])],
410 [#include <asm/types.h>])
412 AC_CHECK_TYPE([__s64],
413 [AC_DEFINE(HAVE___S64, 1, [__s64 is defined])],
415 [#include <asm/types.h>])
417 # check userland __u64 type
418 AC_MSG_CHECKING([userspace __u64 is long long type])
420 CFLAGS="$CFLAGS -Werror"
423 #include <linux/types.h>
424 #include <linux/stddef.h>
426 unsigned long long *data1;
435 AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
436 [__u64 is long long type])
442 # -------- Check for required packages --------------
445 AC_MSG_CHECKING([if efence debugging support is requested])
446 AC_ARG_ENABLE(efence,
447 AC_HELP_STRING([--enable-efence],
448 [use efence library]),
449 [],[enable_efence='no'])
450 AC_MSG_RESULT([$enable_efence])
451 if test "$enable_efence" = "yes" ; then
453 AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
460 # -------- check for -lpthread support ----
461 AC_ARG_ENABLE([libpthread],
462 AC_HELP_STRING([--disable-libpthread],
463 [disable libpthread]),
464 [],[enable_libpthread=yes])
465 if test "$enable_libpthread" = "yes" ; then
466 AC_CHECK_LIB([pthread], [pthread_create],
467 [ENABLE_LIBPTHREAD="yes"],
468 [ENABLE_LIBPTHREAD="no"])
469 AC_MSG_CHECKING([whether to use libpthread for libcfs library])
470 AC_MSG_RESULT([$ENABLE_LIBPTHREAD])
471 if test "$ENABLE_LIBPTHREAD" = "yes" ; then
472 PTHREAD_LIBS="-lpthread"
473 AC_DEFINE([HAVE_LIBPTHREAD], 1, [use libpthread])
477 AC_SUBST(PTHREAD_LIBS)
479 AC_MSG_WARN([Using libpthread for libcfs library is disabled explicitly])
480 ENABLE_LIBPTHREAD="no"
482 AC_SUBST(ENABLE_LIBPTHREAD)
486 # LIBCFS_CONDITIONALS
488 # AM_CONDITOINAL defines for lnet
490 AC_DEFUN([LIBCFS_CONDITIONALS],
492 AM_CONDITIONAL(HAVE_CRC32, test x$have_crc32 = xtrue)
493 AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32, test x$have_crc32 = xtrue -a x$enable_crc32_crypto = xtrue)
494 AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32C, test x$enable_crc32c_crypto = xtrue)
498 # LIBCFS_CONFIG_FILES
500 # files that should be generated with AC_OUTPUT
502 AC_DEFUN([LIBCFS_CONFIG_FILES],
507 libcfs/autoconf/Makefile
508 libcfs/include/Makefile
509 libcfs/include/libcfs/Makefile
510 libcfs/include/libcfs/linux/Makefile
511 libcfs/include/libcfs/posix/Makefile
512 libcfs/include/libcfs/util/Makefile
513 libcfs/libcfs/Makefile
514 libcfs/libcfs/autoMakefile
515 libcfs/libcfs/linux/Makefile
516 libcfs/libcfs/posix/Makefile
517 libcfs/libcfs/util/Makefile
518 libcfs/include/libcfs/darwin/Makefile
519 libcfs/libcfs/darwin/Makefile