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])
122 AC_DEFUN([LIBCFS_HAVE_KEYTYPE_H],
123 [LB_CHECK_FILE([$LINUX/include/linux/key-type.h], [
124 AC_DEFINE(HAVE_LINUX_KEYTYPE_H, 1,
125 [kernel has include/key-type.h])
132 # RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
134 AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR],
135 [AC_MSG_CHECKING([shrinker want self pointer in handler])
136 LB_LINUX_TRY_COMPILE([
137 #include <linux/mm.h>
139 struct shrinker *tmp = NULL;
140 tmp->shrink(tmp, 0, 0);
143 AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
144 [shrinker want self pointer in handler])
151 # 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
153 AC_DEFUN([LIBCFS_SYSCTL_CTLNAME],
154 [AC_MSG_CHECKING([if ctl_table has a ctl_name field])
155 LB_LINUX_TRY_COMPILE([
156 #include <linux/sysctl.h>
159 ct.ctl_name = sizeof(ct);
162 AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1,
163 [ctl_table has ctl_name field])
170 # LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
172 # 2.6.34 adds __add_wait_queue_exclusive
174 AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE],
175 [AC_MSG_CHECKING([if __add_wait_queue_exclusive exists])
176 LB_LINUX_TRY_COMPILE([
177 #include <linux/wait.h>
179 wait_queue_head_t queue;
182 __add_wait_queue_exclusive(&queue, &wait);
185 AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
186 [__add_wait_queue_exclusive exists])
193 # 2.6.35 kernel has sk_sleep function
195 AC_DEFUN([LC_SK_SLEEP],
196 [AC_MSG_CHECKING([if kernel has sk_sleep])
197 LB_LINUX_TRY_COMPILE([
198 #include <net/sock.h>
203 AC_DEFINE(HAVE_SK_SLEEP, 1, [kernel has sk_sleep])
210 # 2.6.39 adds a base pointer address argument to dump_trace
211 AC_DEFUN([LIBCFS_DUMP_TRACE_ADDRESS],
212 [AC_MSG_CHECKING([dump_trace want address])
213 LB_LINUX_TRY_COMPILE([
216 #include <asm/stacktrace.h>
218 dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
221 AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
222 [dump_trace want address argument])
230 # FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
231 # pressure shrinker from Linux 3.0
233 AC_DEFUN([LC_SHRINK_CONTROL],
234 [AC_MSG_CHECKING([shrink_control is present])
235 LB_LINUX_TRY_COMPILE([
236 #include <linux/mm.h>
238 struct shrink_control tmp = {0};
239 tmp.nr_to_scan = sizeof(tmp);
242 AC_DEFINE(HAVE_SHRINK_CONTROL, 1,
243 [shrink_control is present])
249 # 3.0 removes stacktrace_ops warning* functions
250 AC_DEFUN([LIBCFS_STACKTRACE_WARNING],
251 [AC_MSG_CHECKING([whether stacktrace_ops.warning is exist])
252 LB_LINUX_TRY_COMPILE([
255 #include <asm/stacktrace.h>
257 ((struct stacktrace_ops *)0)->warning(NULL, NULL);
260 AC_DEFINE(HAVE_STACKTRACE_WARNING, 1, [stacktrace_ops.warning is exist])
268 # FC18 3.7.2-201 unexport sock_map_fd() change to
269 # use sock_alloc_file().
270 # upstream commit 56b31d1c9f1e6a3ad92e7bfe252721e05d92b285
272 AC_DEFUN([LIBCFS_SOCK_ALLOC_FILE],
273 [AC_MSG_CHECKING([sock_alloc_file is exported])
274 LB_CHECK_SYMBOL_EXPORT([sock_alloc_file], [net/socket.c],[
275 LB_LINUX_TRY_COMPILE([
276 #include <linux/net.h>
278 sock_alloc_file(NULL, 0, NULL);
281 AC_DEFINE(HAVE_SOCK_ALLOC_FILE_3ARGS, 1,
282 [sock_alloc_file takes 3 arguments])
285 AC_DEFINE(HAVE_SOCK_ALLOC_FILE, 1,
286 [sock_alloc_file is exported])
295 # LNet linux kernel checks
297 AC_DEFUN([LIBCFS_PROG_LINUX],
299 LIBCFS_CONFIG_PANIC_DUMPLOG
301 LIBCFS_U64_LONG_LONG_LINUX
303 LIBCFS_SYSCTL_UNNUMBERED
304 LIBCFS_HAVE_KEYTYPE_H
306 LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
307 LC_SHRINKER_WANT_SHRINK_PTR
309 LIBCFS_SYSCTL_CTLNAME
311 LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
315 LIBCFS_DUMP_TRACE_ADDRESS
319 LIBCFS_STACKTRACE_WARNING
321 LIBCFS_SOCK_ALLOC_FILE
329 AC_DEFUN([LIBCFS_PROG_DARWIN],
330 [LB_DARWIN_CHECK_FUNCS([get_preemption_level])
334 # LIBCFS_PATH_DEFAULTS
336 # default paths for installed files
338 AC_DEFUN([LIBCFS_PATH_DEFAULTS],
345 # other configure checks
347 AC_DEFUN([LIBCFS_CONFIGURE],
348 [# lnet/utils/portals.c
349 AC_CHECK_HEADERS([asm/types.h endian.h sys/ioctl.h])
352 AC_CHECK_HEADERS([linux/version.h])
354 AC_CHECK_TYPE([spinlock_t],
355 [AC_DEFINE(HAVE_SPINLOCK_T, 1, [spinlock_t is defined])],
357 [#include <linux/spinlock.h>])
359 # lnet/utils/wirecheck.c
360 AC_CHECK_FUNCS([strnlen])
362 # lnet/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
363 AC_CHECK_FUNCS([strlcpy])
365 # libcfs/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
366 AC_CHECK_FUNCS([strlcat])
368 AC_CHECK_TYPE([umode_t],
369 [AC_DEFINE(HAVE_UMODE_T, 1, [umode_t is defined])],
371 [#include <asm/types.h>])
373 AC_CHECK_TYPE([__s8],
374 [AC_DEFINE(HAVE___S8, 1, [__s8 is defined])],
376 [#include <asm/types.h>])
378 AC_CHECK_TYPE([__u8],
379 [AC_DEFINE(HAVE___U8, 1, [__u8 is defined])],
381 [#include <asm/types.h>])
383 AC_CHECK_TYPE([__s16],
384 [AC_DEFINE(HAVE___S16, 1, [__s16 is defined])],
386 [#include <asm/types.h>])
388 AC_CHECK_TYPE([__u16],
389 [AC_DEFINE(HAVE___U16, 1, [__u16 is defined])],
391 [#include <asm/types.h>])
393 AC_CHECK_TYPE([__s32],
394 [AC_DEFINE(HAVE___S32, 1, [__s32 is defined])],
396 [#include <asm/types.h>])
398 AC_CHECK_TYPE([__u32],
399 [AC_DEFINE(HAVE___U32, 1, [__u32 is defined])],
401 [#include <asm/types.h>])
403 AC_CHECK_TYPE([__u64],
404 [AC_DEFINE(HAVE___U64, 1, [__u64 is defined])],
406 [#include <asm/types.h>])
408 AC_CHECK_TYPE([__s64],
409 [AC_DEFINE(HAVE___S64, 1, [__s64 is defined])],
411 [#include <asm/types.h>])
413 # check userland __u64 type
414 AC_MSG_CHECKING([userspace __u64 is long long type])
416 CFLAGS="$CFLAGS -Werror"
419 #include <linux/types.h>
420 #include <linux/stddef.h>
422 unsigned long long *data1;
431 AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
432 [__u64 is long long type])
438 # -------- Check for required packages --------------
441 AC_MSG_CHECKING([if efence debugging support is requested])
442 AC_ARG_ENABLE(efence,
443 AC_HELP_STRING([--enable-efence],
444 [use efence library]),
445 [],[enable_efence='no'])
446 AC_MSG_RESULT([$enable_efence])
447 if test "$enable_efence" = "yes" ; then
449 AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
456 # -------- check for -lpthread support ----
457 AC_MSG_CHECKING([whether to use libpthread for libcfs library])
458 AC_ARG_ENABLE([libpthread],
459 AC_HELP_STRING([--disable-libpthread],
460 [disable libpthread]),
461 [],[enable_libpthread=yes])
462 if test "$enable_libpthread" = "yes" ; then
463 AC_CHECK_LIB([pthread], [pthread_create],
464 [ENABLE_LIBPTHREAD="yes"],
465 [ENABLE_LIBPTHREAD="no"])
466 if test "$ENABLE_LIBPTHREAD" = "yes" ; then
467 AC_MSG_RESULT([$ENABLE_LIBPTHREAD])
468 PTHREAD_LIBS="-lpthread"
469 AC_DEFINE([HAVE_LIBPTHREAD], 1, [use libpthread])
472 AC_MSG_RESULT([no libpthread is found])
474 AC_SUBST(PTHREAD_LIBS)
476 AC_MSG_RESULT([no (disabled explicitly)])
477 ENABLE_LIBPTHREAD="no"
479 AC_SUBST(ENABLE_LIBPTHREAD)
485 # LIBCFS_CONDITIONALS
487 # AM_CONDITOINAL defines for lnet
489 AC_DEFUN([LIBCFS_CONDITIONALS],
494 # LIBCFS_CONFIG_FILES
496 # files that should be generated with AC_OUTPUT
498 AC_DEFUN([LIBCFS_CONFIG_FILES],
503 libcfs/autoconf/Makefile
504 libcfs/include/Makefile
505 libcfs/include/libcfs/Makefile
506 libcfs/include/libcfs/linux/Makefile
507 libcfs/include/libcfs/posix/Makefile
508 libcfs/include/libcfs/util/Makefile
509 libcfs/libcfs/Makefile
510 libcfs/libcfs/autoMakefile
511 libcfs/libcfs/linux/Makefile
512 libcfs/libcfs/posix/Makefile
513 libcfs/libcfs/util/Makefile
514 libcfs/include/libcfs/darwin/Makefile
515 libcfs/libcfs/darwin/Makefile