eb3aa9ca3521779498970eaad3342561b8d5999a
[urcu.git] / configure.ac
1 dnl SPDX-License-Identifier: LGPL-2.1-only
2 dnl
3 dnl Copyright (C) 2021 EfficiOS, Inc.
4 dnl
5 dnl Process this file with autoconf to produce a configure script.
6
7 # Project version information
8 m4_define([urcu_version_major], [0])
9 m4_define([urcu_version_minor], [13])
10 m4_define([urcu_version_patch], [0])
11 m4_define([urcu_version_dev_stage], [-pre])
12 m4_define([urcu_version], urcu_version_major[.]urcu_version_minor[.]urcu_version_patch[]urcu_version_dev_stage)
13
14 # Library version information of "liburcu"
15 # Following the numbering scheme proposed by libtool for the library version
16 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
17 m4_define([urcu_lib_version_current], [7])
18 m4_define([urcu_lib_version_revision], [0])
19 m4_define([urcu_lib_version_age], [1])
20 m4_define([urcu_lib_version], urcu_lib_version_current[:]urcu_lib_version_revision[:]urcu_lib_version_age)
21
22
23 ## ##
24 ## Autoconf base setup ##
25 ## ##
26
27 AC_PREREQ([2.69])
28 AC_INIT([userspace-rcu],[urcu_version],[mathieu dot desnoyers at efficios dot com],[],[http://liburcu.org/])
29
30 AC_CONFIG_HEADERS([include/config.h include/urcu/config.h])
31 AC_CONFIG_AUX_DIR([config])
32 AC_CONFIG_MACRO_DIR([m4])
33
34 AC_CANONICAL_TARGET
35 AC_CANONICAL_HOST
36
37
38 ## ##
39 ## Automake base setup ##
40 ## ##
41
42 AM_INIT_AUTOMAKE([1.12 foreign dist-bzip2 no-dist-gzip nostdinc -Wall -Wno-portability -Werror])
43 AM_MAINTAINER_MODE([enable])
44
45 # Enable silent rules by default
46 AM_SILENT_RULES([yes])
47
48
49 ## ##
50 ## OS and Arch specific defaults ##
51 ## ##
52
53 AS_CASE([$host],
54 [*-cygwin*], [LT_NO_UNDEFINED="-no-undefined"]
55 )
56
57
58 ## ##
59 ## C compiler checks ##
60 ## ##
61
62 # Choose the C compiler
63 AC_PROG_CC
64 # AC_PROG_CC_STDC was merged in AC_PROG_CC in autoconf 2.70
65 m4_version_prereq([2.70], [], [AC_PROG_CC_STDC])
66
67 # Make sure the C compiler supports C99
68 AS_IF([test "$ac_cv_prog_cc_c99" = "no"], [AC_MSG_ERROR([The compiler does not support C99])])
69
70 # Enable available system extensions and LFS support
71 AC_USE_SYSTEM_EXTENSIONS
72 AC_SYS_LARGEFILE
73
74 # Make sure the C compiler supports __attribute__
75 AX_C___ATTRIBUTE__
76 AS_IF([test "x$ax_cv___attribute__" != "xyes"],
77 [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])])
78
79 # Make sure we have pthread support
80 AX_PTHREAD([], [AC_MSG_ERROR([Could not configure pthread support])])
81
82 # Make sure the C compiler supports weak symbols
83 AX_SYS_WEAK_ALIAS
84 AS_IF([test "x$ax_cv_sys_weak_alias" = "xno"],
85 [AC_MSG_ERROR([Your platform doesn't support weak symbols.])])
86
87 # Checks for typedefs, structures, and compiler characteristics.
88 AC_C_INLINE
89 AC_C_TYPEOF
90 AC_TYPE_INT32_T
91 AC_TYPE_PID_T
92 AC_TYPE_SIZE_T
93 AC_TYPE_SSIZE_T
94 AC_TYPE_UINT16_T
95 AC_TYPE_UINT32_T
96 AC_TYPE_UINT64_T
97 AC_TYPE_UINT8_T
98
99
100 ## ##
101 ## Header checks ##
102 ## ##
103
104 AC_HEADER_STDBOOL
105 AC_CHECK_HEADERS([ \
106 limits.h \
107 stddef.h \
108 sys/param.h \
109 sys/time.h \
110 ])
111
112
113 ## ##
114 ## Programs checks ##
115 ## ##
116
117 AC_PROG_AWK
118 AC_PROG_GREP
119 AC_PROG_MAKE_SET
120 AC_CHECK_PROGS(NPROC, [nproc gnproc])
121 AC_CHECK_PROG(GETCONF, [getconf])
122 AS_IF([test "x$NPROC" != "x"],
123 [NPROC_CMD=$NPROC],
124 [AS_IF([test "x$GETCONF" != "x"],
125 [NPROC_CMD="$GETCONF _NPROCESSORS_ONLN"],
126 [NPROC_CMD="echo 1"]
127 )]
128 )
129 AC_SUBST([NPROC_CMD], [$NPROC_CMD])
130
131 # Initialize and configure libtool
132 LT_INIT
133
134
135 ## ##
136 ## Library checks ##
137 ## ##
138
139 # Checks for library functions.
140 AC_FUNC_MMAP
141 AC_FUNC_FORK
142 AC_CHECK_FUNCS([ \
143 atexit \
144 getcpuid \
145 gettid \
146 gettimeofday \
147 memeset \
148 memset \
149 munmap \
150 rand_r \
151 sched_getcpu \
152 sched_setaffinity \
153 strerror \
154 strtoul \
155 sysconf \
156 ])
157
158 # AC_FUNC_MALLOC causes problems when cross-compiling.
159 #AC_FUNC_MALLOC
160
161 # Search for clock_gettime() in -lrt
162 AC_SEARCH_LIBS([clock_gettime], [rt], [
163 AC_DEFINE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [1], [clock_gettime() is detected.])
164 ])
165
166
167 ## ##
168 ## Optionnal features selection ##
169 ## ##
170
171 # Allow to fallback to FIXME if the membarrier syscall is unavailable on the
172 # running kernel, when disabled, abort if the syscall is unavailable. Applies
173 # to default and bulletproof flavors.
174 # Enabled by default
175 AE_FEATURE_DEFAULT_ENABLE
176 AE_FEATURE([sys-membarrier-fallback], [Abort if sys-membarrier is needed but not available rather than using a fallback.])
177
178 # Use compiler Thread Local Storage, when disabled use pthread_getspecific() to emulate TLS.
179 # Enabled by default
180 AE_FEATURE_DEFAULT_ENABLE
181 AE_FEATURE([compiler-tls], [Use pthread_getspecific() to emulate Thread Local Storage (TLS) variables.])
182
183 # smp-support configure option
184 # Enabled by default
185 AE_FEATURE_DEFAULT_ENABLE
186 AE_FEATURE([smp-support], [Disable SMP support. Warning: only use this on uniprocessor systems.])
187
188 # RCU debugging option
189 # Disabled by default
190 AE_FEATURE_DEFAULT_DISABLE
191 AE_FEATURE([rcu-debug], [Enable internal debugging self-checks. Introduces a performance penalty.])
192
193 # rculfhash iterator debugging
194 # Disabled by default
195 AE_FEATURE_DEFAULT_DISABLE
196 AE_FEATURE([cds-lfht-iter-debug], [Enable extra debugging checks for lock-free hash table iterator traversal. Alters the rculfhash ABI. Make sure to compile both library and application with matching configuration.])
197
198
199 ## ##
200 ## Set defines for optional features conditionnals in the source code ##
201 ## ##
202
203 AE_IF_FEATURE_DISABLED([sys-membarrier-fallback], [
204 AC_DEFINE([CONFIG_RCU_FORCE_SYS_MEMBARRIER], [1], [Require the operating system to support the membarrier system call for default and bulletproof flavors.])
205 ])
206
207 AE_IF_FEATURE_ENABLED([compiler-tls], [
208 AC_DEFINE([CONFIG_RCU_TLS], [1], [Use compiler provided Thread Local Storage.])
209 ])
210
211 AE_IF_FEATURE_ENABLED([smp-support], [
212 AC_DEFINE([CONFIG_RCU_SMP], [1], [Enable SMP support. With SMP support enabled, uniprocessors are also supported. With SMP support disabled, UP systems work fine, but the behavior of SMP systems is undefined.])
213 ])
214
215 AE_IF_FEATURE_ENABLED([rcu-debug], [
216 AC_DEFINE([CONFIG_RCU_DEBUG], [1], [Enable internal debugging self-checks. Introduces a performance penalty.])
217 ])
218
219 AE_IF_FEATURE_ENABLED([cds-lfht-iter-debug], [
220 AC_DEFINE([CONFIG_CDS_LFHT_ITER_DEBUG], [1], [Enable extra debugging checks for lock-free hash table iterator traversal. Alters the rculfhash ABI. Make sure to compile both library and application with matching configuration.])
221 ])
222
223
224 ## ##
225 ## Set automake variables for optional feature conditionnals in Makefile.am ##
226 ## ##
227
228 # Building the examples requires the shared libraries to be enabled
229 AM_CONDITIONAL([ENABLE_EXAMPLES], AE_IS_FEATURE_ENABLED([shared]))
230
231
232 ## ##
233 ## Substitute variables for use in Makefile.am ##
234 ## ##
235
236 # Library versions for libtool
237 AC_SUBST([URCU_LIBRARY_VERSION], [urcu_lib_version])
238
239 AC_SUBST(LT_NO_UNDEFINED)
240
241 # The order in which the include folders are searched is important.
242 # The top_builddir should always be searched first in the event that a build
243 # time generated file is included.
244 AM_CPPFLAGS="-I\$(top_builddir)/include -I\$(top_srcdir)/include -include config.h"
245 AC_SUBST(AM_CPPFLAGS)
246
247 AM_CFLAGS="-Wall -Wextra -Wno-unused-parameter $PTHREAD_CFLAGS"
248 AC_SUBST(AM_CFLAGS)
249
250
251 ## ##
252 ## Output files generated by configure ##
253 ## ##
254
255 AC_CONFIG_FILES([
256 Makefile
257 doc/Makefile
258 doc/examples/Makefile
259 include/Makefile
260 src/Makefile
261 tests/Makefile
262 tests/common/Makefile
263 tests/unit/Makefile
264 tests/benchmark/Makefile
265 tests/regression/Makefile
266 tests/utils/Makefile
267 src/liburcu.pc
268 src/liburcu-bp.pc
269 src/liburcu-cds.pc
270 src/liburcu-qsbr.pc
271 src/liburcu-mb.pc
272 src/liburcu-signal.pc
273 ])
274
275 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_perf_global.tap])
276 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_perf_percpu.tap])
277 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_perf_perthread.tap])
278 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_rperf_global.tap])
279 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_rperf_percpu.tap])
280 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_rperf_perthread.tap])
281 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_stress_global.tap])
282 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_stress_percpu.tap])
283 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_stress_perthread.tap])
284 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_uperf_global.tap])
285 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_uperf_percpu.tap])
286 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_uperf_perthread.tap])
287 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_perf_global.tap])
288 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_perf_percpu.tap])
289 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_perf_perthread.tap])
290 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_rperf_global.tap])
291 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_rperf_percpu.tap])
292 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_rperf_perthread.tap])
293 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_stress_global.tap])
294 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_stress_percpu.tap])
295 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_stress_perthread.tap])
296 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_uperf_global.tap])
297 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_uperf_percpu.tap])
298 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_uperf_perthread.tap])
299 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_perf_global.tap])
300 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_perf_percpu.tap])
301 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_perf_perthread.tap])
302 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_rperf_global.tap])
303 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_rperf_percpu.tap])
304 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_rperf_perthread.tap])
305 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_stress_global.tap])
306 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_stress_percpu.tap])
307 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_stress_perthread.tap])
308 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_uperf_global.tap])
309 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_uperf_percpu.tap])
310 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_uperf_perthread.tap])
311 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_perf_global.tap])
312 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_perf_percpu.tap])
313 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_perf_perthread.tap])
314 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_rperf_global.tap])
315 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_rperf_percpu.tap])
316 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_rperf_perthread.tap])
317 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_stress_global.tap])
318 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_stress_percpu.tap])
319 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_stress_perthread.tap])
320 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_uperf_global.tap])
321 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_uperf_percpu.tap])
322 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_uperf_perthread.tap])
323 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_perf_global.tap])
324 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_perf_percpu.tap])
325 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_perf_perthread.tap])
326 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_rperf_global.tap])
327 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_rperf_percpu.tap])
328 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_rperf_perthread.tap])
329 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_stress_global.tap])
330 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_stress_percpu.tap])
331 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_stress_perthread.tap])
332 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_uperf_global.tap])
333 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_uperf_percpu.tap])
334 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_uperf_perthread.tap])
335
336
337 AC_OUTPUT
338
339 #
340 # Mini-report on what will be built.
341 #
342
343 PPRINT_INIT
344 PPRINT_SET_INDENT(1)
345 PPRINT_SET_TS(38)
346
347 AS_ECHO
348 AS_ECHO("${PPRINT_COLOR_BLDBLU}Userspace-RCU $PACKAGE_VERSION${PPRINT_COLOR_RST}")
349 AS_ECHO
350
351 PPRINT_SUBTITLE([Features])
352
353 PPRINT_PROP_STRING([Target architecture], $host_cpu)
354
355 # SMP support enabled/disabled
356 AE_IS_FEATURE_ENABLED([smp-support]) && value=1 || value=0
357 PPRINT_PROP_BOOL([SMP support], $value)
358
359 # TLS
360 AE_IS_FEATURE_ENABLED([compiler-tls]) && value="compiler TLS" || value="pthread_getspecific()"
361 PPRINT_PROP_STRING([Thread Local Storage (TLS)], [$value])
362
363 # clock_gettime() available
364 test "x$ac_cv_search_function_clock_gettime" != "xno" && value=1 || value=0
365 PPRINT_PROP_BOOL([clock_gettime()], $value)
366
367 # Require membarrier
368 AE_IS_FEATURE_ENABLED([sys-membarrier-fallback]) && value=0 || value=1
369 PPRINT_PROP_BOOL([Require membarrier], $value)
370
371 # RCU debug enabled/disabled
372 AE_IS_FEATURE_ENABLED([rcu-debug]) && value=1 || value=0
373 PPRINT_PROP_BOOL([Internal debugging], $value)
374
375 # rculfhash iterator debug enabled/disabled
376 AE_IS_FEATURE_ENABLED([cds-lfht-iter-debug]) && value=1 || value=0
377 PPRINT_PROP_BOOL([Lock-free HT iterator debugging], $value)
378
379 PPRINT_PROP_BOOL([Multi-flavor support], 1)
380
381 report_bindir="`eval eval echo $bindir`"
382 report_libdir="`eval eval echo $libdir`"
383
384 # Print the bindir and libdir this 'make install' will install into.
385 AS_ECHO
386 PPRINT_SUBTITLE([Install directories])
387 PPRINT_PROP_STRING([Binaries], [$report_bindir])
388 PPRINT_PROP_STRING([Libraries], [$report_libdir])
389
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