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])
18 AC_MSG_CHECKING([whether to enable ENTRY/EXIT])
19 AC_ARG_ENABLE([libcfs_trace],
20 AC_HELP_STRING([--disable-libcfs-trace],
21 [disable libcfs ENTRY/EXIT]),
22 [],[enable_libcfs_trace='yes'])
23 AC_MSG_RESULT([$enable_libcfs_trace])
24 if test x$enable_libcfs_trace = xyes; then
25 AC_DEFINE(CDEBUG_ENTRY_EXIT, 1, [enable libcfs ENTRY/EXIT])
28 AC_MSG_CHECKING([whether to enable LASSERT, LASSERTF])
29 AC_ARG_ENABLE([libcfs_assert],
30 AC_HELP_STRING([--disable-libcfs-assert],
31 [disable libcfs LASSERT, LASSERTF]),
32 [],[enable_libcfs_assert='yes'])
33 AC_MSG_RESULT([$enable_libcfs_assert])
34 if test x$enable_libcfs_assert = xyes; then
35 AC_DEFINE(LIBCFS_DEBUG, 1, [enable libcfs LASSERT, LASSERTF])
40 # LIBCFS_CONFIG_PANIC_DUMPLOG
42 # check if tunable panic_dumplog is wanted
44 AC_DEFUN([LIBCFS_CONFIG_PANIC_DUMPLOG],
45 [AC_MSG_CHECKING([for tunable panic_dumplog support])
46 AC_ARG_ENABLE([panic_dumplog],
47 AC_HELP_STRING([--enable-panic_dumplog],
48 [enable panic_dumplog]),
49 [],[enable_panic_dumplog='no'])
50 if test x$enable_panic_dumplog = xyes ; then
51 AC_DEFINE(LNET_DUMP_ON_PANIC, 1, [use dumplog on panic])
52 AC_MSG_RESULT([yes (by request)])
58 # check kernel __u64 type
59 AC_DEFUN([LIBCFS_U64_LONG_LONG_LINUX],
61 AC_MSG_CHECKING([kernel __u64 is long long type])
62 tmp_flags="$EXTRA_KCFLAGS"
63 EXTRA_KCFLAGS="$EXTRA_KCFLAGS -Werror"
64 LB_LINUX_TRY_COMPILE([
65 #include <linux/types.h>
66 #include <linux/stddef.h>
68 unsigned long long *data;
70 data = (__u64*)sizeof(data);
73 AC_DEFINE(HAVE_KERN__U64_LONG_LONG, 1,
74 [kernel __u64 is long long type])
78 EXTRA_KCFLAGS="$tmp_flags"
82 # LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
84 # 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops'
86 AC_DEFUN([LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK],
87 [AC_MSG_CHECKING([if 'struct stacktrace_ops' has 'walk_stack' field])
88 LB_LINUX_TRY_COMPILE([
89 #include <asm/stacktrace.h>
91 ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL);
94 AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1, ['struct stacktrace_ops' has 'walk_stack' field])
101 # RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
103 AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR],
104 [AC_MSG_CHECKING([shrinker want self pointer in handler])
105 LB_LINUX_TRY_COMPILE([
106 #include <linux/mm.h>
108 struct shrinker *tmp = NULL;
109 tmp->shrink(tmp, 0, 0);
112 AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
113 [shrinker want self pointer in handler])
120 # 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
122 AC_DEFUN([LIBCFS_SYSCTL_CTLNAME],
123 [AC_MSG_CHECKING([if ctl_table has a ctl_name field])
124 LB_LINUX_TRY_COMPILE([
125 #include <linux/sysctl.h>
128 ct.ctl_name = sizeof(ct);
131 AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1,
132 [ctl_table has ctl_name field])
139 # LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
141 # 2.6.34 adds __add_wait_queue_exclusive
143 AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE],
144 [AC_MSG_CHECKING([if __add_wait_queue_exclusive exists])
145 LB_LINUX_TRY_COMPILE([
146 #include <linux/wait.h>
148 wait_queue_head_t queue;
151 __add_wait_queue_exclusive(&queue, &wait);
154 AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
155 [__add_wait_queue_exclusive exists])
162 # 2.6.35 kernel has sk_sleep function
164 AC_DEFUN([LC_SK_SLEEP],
165 [AC_MSG_CHECKING([if kernel has sk_sleep])
166 LB_LINUX_TRY_COMPILE([
167 #include <net/sock.h>
172 AC_DEFINE(HAVE_SK_SLEEP, 1, [kernel has sk_sleep])
179 # 2.6.39 adds a base pointer address argument to dump_trace
180 AC_DEFUN([LIBCFS_DUMP_TRACE_ADDRESS],
181 [AC_MSG_CHECKING([dump_trace want address])
182 LB_LINUX_TRY_COMPILE([
185 #include <asm/stacktrace.h>
187 dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
190 AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
191 [dump_trace want address argument])
199 # FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
200 # pressure shrinker from Linux 3.0
202 AC_DEFUN([LC_SHRINK_CONTROL],
203 [AC_MSG_CHECKING([shrink_control is present])
204 LB_LINUX_TRY_COMPILE([
205 #include <linux/mm.h>
207 struct shrink_control tmp = {0};
208 tmp.nr_to_scan = sizeof(tmp);
211 AC_DEFINE(HAVE_SHRINK_CONTROL, 1,
212 [shrink_control is present])
218 # 3.0 removes stacktrace_ops warning* functions
219 AC_DEFUN([LIBCFS_STACKTRACE_WARNING],
220 [AC_MSG_CHECKING([whether stacktrace_ops.warning is exist])
221 LB_LINUX_TRY_COMPILE([
224 #include <asm/stacktrace.h>
226 ((struct stacktrace_ops *)0)->warning(NULL, NULL);
229 AC_DEFINE(HAVE_STACKTRACE_WARNING, 1, [stacktrace_ops.warning is exist])
236 # 3.4 introduced process namespace
237 AC_DEFUN([LIBCFS_PROCESS_NAMESPACE],[
238 LB_CHECK_LINUX_HEADER([linux/uidgid.h], [
239 AC_DEFINE(HAVE_UIDGID_HEADER, 1, [uidgid.h is present])
244 # FC18 3.7.2-201 unexport sock_map_fd() change to
245 # use sock_alloc_file().
246 # upstream commit 56b31d1c9f1e6a3ad92e7bfe252721e05d92b285
248 AC_DEFUN([LIBCFS_SOCK_ALLOC_FILE],
249 [LB_CHECK_SYMBOL_EXPORT([sock_alloc_file], [net/socket.c],[
250 LB_LINUX_TRY_COMPILE([
251 #include <linux/net.h>
253 sock_alloc_file(NULL, 0, NULL);
255 AC_DEFINE(HAVE_SOCK_ALLOC_FILE_3ARGS, 1,
256 [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$enable_crc32_crypto = xtrue; then
277 AC_DEFINE(NEED_CRC32_ACCEL, 1, [need pclmulqdq based crc32])
280 No crc32 pclmulqdq crypto api found, enable internal pclmulqdq based crc32
285 AC_DEFUN([LIBCFS_ENABLE_CRC32C_ACCEL],
286 [LB_LINUX_CONFIG_IM([CRYPTO_CRC32C_INTEL],
287 [enable_crc32c_crypto=false],[enable_crc32c_crypto=true])
288 if test x$enable_crc32c_crypto = xtrue; then
289 AC_DEFINE(NEED_CRC32C_ACCEL, 1, [need pclmulqdq based crc32c])
292 No crc32c pclmulqdq crypto api found, enable internal pclmulqdq based crc32c
300 # LNet linux kernel checks
302 AC_DEFUN([LIBCFS_PROG_LINUX],
304 LIBCFS_CONFIG_PANIC_DUMPLOG
306 LIBCFS_U64_LONG_LONG_LINUX
308 LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
309 LC_SHRINKER_WANT_SHRINK_PTR
311 LIBCFS_SYSCTL_CTLNAME
313 LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
317 LIBCFS_DUMP_TRACE_ADDRESS
321 LIBCFS_STACKTRACE_WARNING
323 LIBCFS_PROCESS_NAMESPACE
325 LIBCFS_SOCK_ALLOC_FILE
328 LIBCFS_ENABLE_CRC32_ACCEL
330 LIBCFS_ENABLE_CRC32C_ACCEL
338 AC_DEFUN([LIBCFS_PROG_DARWIN],
339 [LB_DARWIN_CHECK_FUNCS([get_preemption_level])
343 # LIBCFS_PATH_DEFAULTS
345 # default paths for installed files
347 AC_DEFUN([LIBCFS_PATH_DEFAULTS],
354 # other configure checks
356 AC_DEFUN([LIBCFS_CONFIGURE],
357 [# lnet/utils/portals.c
358 AC_CHECK_HEADERS([asm/types.h endian.h sys/ioctl.h])
361 AC_CHECK_HEADERS([linux/version.h])
363 AC_CHECK_TYPE([spinlock_t],
364 [AC_DEFINE(HAVE_SPINLOCK_T, 1, [spinlock_t is defined])],
366 [#include <linux/spinlock.h>])
368 # lnet/utils/wirecheck.c
369 AC_CHECK_FUNCS([strnlen])
371 # lnet/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
372 AC_CHECK_FUNCS([strlcpy])
374 # libcfs/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
375 AC_CHECK_FUNCS([strlcat])
377 AC_CHECK_TYPE([umode_t],
378 [AC_DEFINE(HAVE_UMODE_T, 1, [umode_t is defined])],
380 [#include <asm/types.h>])
382 AC_CHECK_TYPE([__s8],
383 [AC_DEFINE(HAVE___S8, 1, [__s8 is defined])],
385 [#include <asm/types.h>])
387 AC_CHECK_TYPE([__u8],
388 [AC_DEFINE(HAVE___U8, 1, [__u8 is defined])],
390 [#include <asm/types.h>])
392 AC_CHECK_TYPE([__s16],
393 [AC_DEFINE(HAVE___S16, 1, [__s16 is defined])],
395 [#include <asm/types.h>])
397 AC_CHECK_TYPE([__u16],
398 [AC_DEFINE(HAVE___U16, 1, [__u16 is defined])],
400 [#include <asm/types.h>])
402 AC_CHECK_TYPE([__s32],
403 [AC_DEFINE(HAVE___S32, 1, [__s32 is defined])],
405 [#include <asm/types.h>])
407 AC_CHECK_TYPE([__u32],
408 [AC_DEFINE(HAVE___U32, 1, [__u32 is defined])],
410 [#include <asm/types.h>])
412 AC_CHECK_TYPE([__u64],
413 [AC_DEFINE(HAVE___U64, 1, [__u64 is defined])],
415 [#include <asm/types.h>])
417 AC_CHECK_TYPE([__s64],
418 [AC_DEFINE(HAVE___S64, 1, [__s64 is defined])],
420 [#include <asm/types.h>])
422 # check userland __u64 type
423 AC_MSG_CHECKING([userspace __u64 is long long type])
425 CFLAGS="$CFLAGS -Werror"
428 #include <linux/types.h>
429 #include <linux/stddef.h>
431 unsigned long long *data1;
440 AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
441 [__u64 is long long type])
447 # -------- Check for required packages --------------
450 AC_MSG_CHECKING([if efence debugging support is requested])
451 AC_ARG_ENABLE(efence,
452 AC_HELP_STRING([--enable-efence],
453 [use efence library]),
454 [],[enable_efence='no'])
455 AC_MSG_RESULT([$enable_efence])
456 if test "$enable_efence" = "yes" ; then
458 AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
465 # -------- check for -lpthread support ----
466 AC_ARG_ENABLE([libpthread],
467 AC_HELP_STRING([--disable-libpthread],
468 [disable libpthread]),
469 [],[enable_libpthread=yes])
470 if test "$enable_libpthread" = "yes" ; then
471 AC_CHECK_LIB([pthread], [pthread_create],
472 [ENABLE_LIBPTHREAD="yes"],
473 [ENABLE_LIBPTHREAD="no"])
474 AC_MSG_CHECKING([whether to use libpthread for libcfs library])
475 AC_MSG_RESULT([$ENABLE_LIBPTHREAD])
476 if test "$ENABLE_LIBPTHREAD" = "yes" ; then
477 PTHREAD_LIBS="-lpthread"
478 AC_DEFINE([HAVE_LIBPTHREAD], 1, [use libpthread])
482 AC_SUBST(PTHREAD_LIBS)
484 AC_MSG_WARN([Using libpthread for libcfs library is disabled explicitly])
485 ENABLE_LIBPTHREAD="no"
487 AC_SUBST(ENABLE_LIBPTHREAD)
491 # LIBCFS_CONDITIONALS
493 # AM_CONDITOINAL defines for lnet
495 AC_DEFUN([LIBCFS_CONDITIONALS],
497 AM_CONDITIONAL(HAVE_CRC32, test x$have_crc32 = xtrue)
498 AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32, test x$have_crc32 = xtrue -a x$enable_crc32_crypto = xtrue)
499 AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32C, test x$enable_crc32c_crypto = xtrue)
503 # LIBCFS_CONFIG_FILES
505 # files that should be generated with AC_OUTPUT
507 AC_DEFUN([LIBCFS_CONFIG_FILES],
512 libcfs/autoconf/Makefile
513 libcfs/include/Makefile
514 libcfs/include/libcfs/Makefile
515 libcfs/include/libcfs/linux/Makefile
516 libcfs/include/libcfs/posix/Makefile
517 libcfs/include/libcfs/util/Makefile
518 libcfs/libcfs/Makefile
519 libcfs/libcfs/autoMakefile
520 libcfs/libcfs/linux/Makefile
521 libcfs/libcfs/posix/Makefile
522 libcfs/libcfs/util/Makefile
523 libcfs/include/libcfs/darwin/Makefile
524 libcfs/libcfs/darwin/Makefile