Commit | Line | Data |
---|---|---|
23975ca7 MJ |
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]) | |
d5a39857 | 9 | m4_define([urcu_version_minor], [15]) |
23975ca7 | 10 | m4_define([urcu_version_patch], [0]) |
d5a39857 | 11 | m4_define([urcu_version_dev_stage], [-pre]) |
23975ca7 MJ |
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" | |
98bc124a YB |
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 | |
5feb4925 | 17 | m4_define([urcu_lib_version_current], [9]) |
23975ca7 | 18 | m4_define([urcu_lib_version_revision], [0]) |
5feb4925 | 19 | m4_define([urcu_lib_version_age], [1]) |
23975ca7 MJ |
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 | ||
afb6113f | 27 | AC_PREREQ([2.69]) |
23975ca7 | 28 | AC_INIT([userspace-rcu],[urcu_version],[mathieu dot desnoyers at efficios dot com],[],[http://liburcu.org/]) |
98bc124a | 29 | |
6893800a | 30 | AC_CONFIG_HEADERS([include/config.h include/urcu/config.h]) |
48d848c7 | 31 | AC_CONFIG_AUX_DIR([config]) |
074c3a1b MJ |
32 | AC_CONFIG_MACRO_DIR([m4]) |
33 | ||
7d413817 MD |
34 | AC_CANONICAL_TARGET |
35 | AC_CANONICAL_HOST | |
074c3a1b | 36 | |
afb6113f MJ |
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]) | |
35eb2d6c | 43 | AM_MAINTAINER_MODE([enable]) |
7d413817 | 44 | |
afb6113f MJ |
45 | # Enable silent rules by default |
46 | AM_SILENT_RULES([yes]) | |
e72596d1 | 47 | |
514079bb MJ |
48 | |
49 | ## ## | |
50 | ## OS and Arch specific defaults ## | |
51 | ## ## | |
52 | ||
53 | AS_CASE([$host], | |
5159c1cf | 54 | [*-cygwin* | *-msys*], [LT_NO_UNDEFINED="-no-undefined"] |
514079bb MJ |
55 | ) |
56 | ||
57 | ||
8b2f0590 MJ |
58 | ## ## |
59 | ## C compiler checks ## | |
60 | ## ## | |
61 | ||
62 | # Choose the C compiler | |
63 | AC_PROG_CC | |
64 | # AC_PROG_CC_STDC was merged in AC_PROG_CC in autoconf 2.70 | |
65 | m4_version_prereq([2.70], [], [AC_PROG_CC_STDC]) | |
66 | ||
67 | # Make sure the C compiler supports C99 | |
68 | AS_IF([test "$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 | ||
3afcf5a0 OD |
74 | # Check if the selected C compiler supports atomic builtins |
75 | AE_CC_ATOMIC_BUILTINS | |
76 | ||
77 | ||
153b081a SM |
78 | ## ## |
79 | ## C++ compiler checks ## | |
80 | ## ## | |
81 | ||
82 | # Require a C++11 compiler without GNU extensions (-std=c++11) | |
83 | AX_CXX_COMPILE_STDCXX([11], [noext], [mandatory]) | |
84 | ||
8b2f0590 MJ |
85 | # Make sure the C compiler supports __attribute__ |
86 | AX_C___ATTRIBUTE__ | |
87 | AS_IF([test "x$ax_cv___attribute__" != "xyes"], | |
88 | [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])]) | |
89 | ||
90 | # Make sure we have pthread support | |
91 | AX_PTHREAD([], [AC_MSG_ERROR([Could not configure pthread support])]) | |
92 | ||
8b2f0590 MJ |
93 | # Checks for typedefs, structures, and compiler characteristics. |
94 | AC_C_INLINE | |
95 | AC_C_TYPEOF | |
96 | AC_TYPE_INT32_T | |
97 | AC_TYPE_PID_T | |
98 | AC_TYPE_SIZE_T | |
99 | AC_TYPE_SSIZE_T | |
100 | AC_TYPE_UINT16_T | |
101 | AC_TYPE_UINT32_T | |
102 | AC_TYPE_UINT64_T | |
103 | AC_TYPE_UINT8_T | |
104 | ||
ee334e48 MJ |
105 | # Detect warning flags supported by the C compiler and append them to |
106 | # WARN_CFLAGS. | |
107 | m4_define([WARN_FLAGS_LIST], [ dnl | |
108 | -Wall dnl | |
109 | -Wextra dnl | |
110 | -Wmissing-prototypes dnl | |
111 | -Wmissing-declarations dnl | |
112 | -Wnull-dereference dnl | |
113 | -Wundef dnl | |
114 | -Wshadow dnl | |
115 | -Wjump-misses-init dnl | |
116 | -Wsuggest-attribute=format dnl | |
117 | -Wtautological-constant-out-of-range-compare dnl | |
118 | -Wnested-externs dnl | |
119 | -Wwrite-strings dnl | |
120 | -Wformat=2 dnl | |
121 | -Wstrict-aliasing dnl | |
122 | -Wmissing-noreturn dnl | |
123 | -Winit-self dnl | |
124 | -Wduplicated-cond dnl | |
125 | -Wduplicated-branches dnl | |
126 | -Wlogical-op dnl | |
127 | dnl | |
128 | dnl-Wredundant-decls dnl | |
129 | -Wno-null-dereference dnl | |
130 | ]) | |
131 | ||
132 | # Pass -Werror as an extra flag during the test: this is needed to make the | |
133 | # -Wunknown-warning-option diagnostic fatal with clang. | |
134 | AC_LANG_PUSH([C]) | |
135 | AX_APPEND_COMPILE_FLAGS([WARN_FLAGS_LIST], [WARN_CFLAGS], [-Werror]) | |
136 | AC_LANG_POP([C]) | |
137 | ||
153b081a SM |
138 | AC_LANG_PUSH([C++]) |
139 | AX_APPEND_COMPILE_FLAGS([WARN_FLAGS_LIST], [WARN_CXXFLAGS], [-Werror]) | |
140 | AC_LANG_POP([C++]) | |
141 | ||
35701ce9 | 142 | AE_IF_FEATURE_ENABLED([Werror], [WARN_CFLAGS="${WARN_CFLAGS} -Werror"]) |
153b081a | 143 | AE_IF_FEATURE_ENABLED([Werror], [WARN_CXXFLAGS="${WARN_CXXFLAGS} -Werror"]) |
35701ce9 | 144 | |
8b2f0590 | 145 | |
6b5533b0 MJ |
146 | ## ## |
147 | ## Header checks ## | |
148 | ## ## | |
149 | ||
150 | AC_HEADER_STDBOOL | |
151 | AC_CHECK_HEADERS([ \ | |
152 | limits.h \ | |
153 | stddef.h \ | |
154 | sys/param.h \ | |
155 | sys/time.h \ | |
156 | ]) | |
157 | ||
158 | ||
159 | ## ## | |
160 | ## Programs checks ## | |
161 | ## ## | |
162 | ||
163 | AC_PROG_AWK | |
164 | AC_PROG_GREP | |
165 | AC_PROG_MAKE_SET | |
166 | AC_CHECK_PROGS(NPROC, [nproc gnproc]) | |
f0124a5a | 167 | AC_CHECK_PROGS(GETCONF, [getconf]) |
de6cb9d5 | 168 | AC_CHECK_PROGS(TIME, [time]) |
6b5533b0 MJ |
169 | |
170 | # Initialize and configure libtool | |
171 | LT_INIT | |
172 | ||
173 | ||
c673679b MJ |
174 | ## ## |
175 | ## Library checks ## | |
176 | ## ## | |
177 | ||
178 | # Checks for library functions. | |
179 | AC_FUNC_MMAP | |
180 | AC_FUNC_FORK | |
181 | AC_CHECK_FUNCS([ \ | |
182 | atexit \ | |
183 | getcpuid \ | |
184 | gettid \ | |
185 | gettimeofday \ | |
186 | memeset \ | |
187 | memset \ | |
188 | munmap \ | |
189 | rand_r \ | |
190 | sched_getcpu \ | |
0614a2e6 | 191 | sched_setaffinity \ |
c673679b MJ |
192 | strerror \ |
193 | strtoul \ | |
194 | sysconf \ | |
195 | ]) | |
196 | ||
197 | # AC_FUNC_MALLOC causes problems when cross-compiling. | |
198 | #AC_FUNC_MALLOC | |
199 | ||
200 | # Search for clock_gettime() in -lrt | |
201 | AC_SEARCH_LIBS([clock_gettime], [rt], [ | |
202 | AC_DEFINE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [1], [clock_gettime() is detected.]) | |
203 | ]) | |
204 | ||
205 | ||
f99c6e92 MJ |
206 | ## ## |
207 | ## Optional features selection ## | |
208 | ## ## | |
86bc2ad8 MJ |
209 | |
210 | # Allow to fallback to FIXME if the membarrier syscall is unavailable on the | |
211 | # running kernel, when disabled, abort if the syscall is unavailable. Applies | |
212 | # to default and bulletproof flavors. | |
213 | # Enabled by default | |
214 | AE_FEATURE_DEFAULT_ENABLE | |
215 | AE_FEATURE([sys-membarrier-fallback], [Abort if sys-membarrier is needed but not available rather than using a fallback.]) | |
216 | ||
217 | # Use compiler Thread Local Storage, when disabled use pthread_getspecific() to emulate TLS. | |
218 | # Enabled by default | |
219 | AE_FEATURE_DEFAULT_ENABLE | |
220 | AE_FEATURE([compiler-tls], [Use pthread_getspecific() to emulate Thread Local Storage (TLS) variables.]) | |
c673679b | 221 | |
86bc2ad8 MJ |
222 | # smp-support configure option |
223 | # Enabled by default | |
224 | AE_FEATURE_DEFAULT_ENABLE | |
225 | AE_FEATURE([smp-support], [Disable SMP support. Warning: only use this on uniprocessor systems.]) | |
d8d9a340 | 226 | |
86bc2ad8 MJ |
227 | # RCU debugging option |
228 | # Disabled by default | |
229 | AE_FEATURE_DEFAULT_DISABLE | |
230 | AE_FEATURE([rcu-debug], [Enable internal debugging self-checks. Introduces a performance penalty.]) | |
a767fdc3 | 231 | |
86bc2ad8 MJ |
232 | # rculfhash iterator debugging |
233 | # Disabled by default | |
234 | AE_FEATURE_DEFAULT_DISABLE | |
235 | 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.]) | |
75478b32 | 236 | |
3afcf5a0 OD |
237 | # Use compiler atomic builtins, when disabled use our legacy uatomic implementation. |
238 | # Disabled by default | |
239 | AE_FEATURE_DEFAULT_DISABLE | |
240 | AE_FEATURE([compiler-atomic-builtins], [Enable the use of compiler atomic builtins.]) | |
241 | ||
0e2125fb OD |
242 | # emit legacy memory barriers |
243 | # Enable by default | |
244 | AE_FEATURE_DEFAULT_ENABLE | |
245 | AE_FEATURE([legacy-mb], [Disable legacy memory barriers.]) | |
246 | ||
35701ce9 SM |
247 | # When given, add -Werror to WARN_CFLAGS and WARN_CXXFLAGS. |
248 | # Disabled by default | |
249 | AE_FEATURE_DEFAULT_DISABLE | |
250 | AE_FEATURE([Werror],[Treat compiler warnings as errors.]) | |
48d848c7 | 251 | |
86bc2ad8 MJ |
252 | ## ## |
253 | ## Set defines for optional features conditionnals in the source code ## | |
254 | ## ## | |
48d848c7 | 255 | |
86bc2ad8 MJ |
256 | AE_IF_FEATURE_DISABLED([sys-membarrier-fallback], [ |
257 | AC_DEFINE([CONFIG_RCU_FORCE_SYS_MEMBARRIER], [1], [Require the operating system to support the membarrier system call for default and bulletproof flavors.]) | |
258 | ]) | |
cdadd34c | 259 | |
86bc2ad8 MJ |
260 | AE_IF_FEATURE_ENABLED([compiler-tls], [ |
261 | AC_DEFINE([CONFIG_RCU_TLS], [1], [Use compiler provided Thread Local Storage.]) | |
262 | ]) | |
0854ccff | 263 | |
86bc2ad8 MJ |
264 | AE_IF_FEATURE_ENABLED([smp-support], [ |
265 | 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.]) | |
266 | ]) | |
7d413817 | 267 | |
86bc2ad8 MJ |
268 | AE_IF_FEATURE_ENABLED([rcu-debug], [ |
269 | AC_DEFINE([CONFIG_RCU_DEBUG], [1], [Enable internal debugging self-checks. Introduces a performance penalty.]) | |
d4e640c0 | 270 | ]) |
48d848c7 | 271 | |
86bc2ad8 MJ |
272 | AE_IF_FEATURE_ENABLED([cds-lfht-iter-debug], [ |
273 | 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.]) | |
d7c76f85 MD |
274 | ]) |
275 | ||
3afcf5a0 OD |
276 | AE_IF_FEATURE_ENABLED([compiler-atomic-builtins], [ |
277 | AC_DEFINE([CONFIG_RCU_USE_ATOMIC_BUILTINS], [1], [Use compiler atomic builtins.]) | |
278 | ]) | |
86bc2ad8 | 279 | |
0e2125fb OD |
280 | AE_IF_FEATURE_ENABLED([legacy-mb], [ |
281 | AC_DEFINE([CONFIG_RCU_EMIT_LEGACY_MB], [1], [Emit legacy memory barriers that were documented in the APIs.]) | |
282 | ]) | |
283 | ||
1136f454 MJ |
284 | ## ## |
285 | ## Set automake variables for optional feature conditionnals in Makefile.am ## | |
286 | ## ## | |
287 | ||
288 | # Building the examples requires the shared libraries to be enabled | |
289 | AM_CONDITIONAL([ENABLE_EXAMPLES], AE_IS_FEATURE_ENABLED([shared])) | |
290 | ||
291 | ||
3afcf5a0 OD |
292 | ## ## |
293 | ## Check for optional features dependencies ## | |
294 | ## ## | |
295 | ||
296 | ||
297 | AE_IF_FEATURE_ENABLED([compiler-atomic-builtins], [ | |
298 | AS_IF([test "x$ae_cv_cc_atomic_builtins" != xyes], [ | |
299 | AC_MSG_ERROR([The compiler does not support atomic builtins.]) | |
300 | ]) | |
301 | ]) | |
302 | ||
23975ca7 MJ |
303 | ## ## |
304 | ## Substitute variables for use in Makefile.am ## | |
305 | ## ## | |
306 | ||
307 | # Library versions for libtool | |
308 | AC_SUBST([URCU_LIBRARY_VERSION], [urcu_lib_version]) | |
309 | ||
514079bb MJ |
310 | AC_SUBST(LT_NO_UNDEFINED) |
311 | ||
01956342 MJ |
312 | # The order in which the include folders are searched is important. |
313 | # The top_builddir should always be searched first in the event that a build | |
314 | # time generated file is included. | |
315 | AM_CPPFLAGS="-I\$(top_builddir)/include -I\$(top_srcdir)/include -include config.h" | |
9a79c612 MJ |
316 | AC_SUBST(AM_CPPFLAGS) |
317 | ||
ee334e48 | 318 | AM_CFLAGS="$WARN_CFLAGS $PTHREAD_CFLAGS" |
9a79c612 | 319 | AC_SUBST(AM_CFLAGS) |
d8540fc5 | 320 | |
153b081a SM |
321 | AM_CXXFLAGS="$WARN_CXXFLAGS $PTHREAD_CFLAGS" |
322 | AC_SUBST(AM_CXXFLAGS) | |
323 | ||
0614a2e6 MJ |
324 | |
325 | ## ## | |
326 | ## Output files generated by configure ## | |
327 | ## ## | |
328 | ||
48d848c7 PMF |
329 | AC_CONFIG_FILES([ |
330 | Makefile | |
fe999c05 | 331 | doc/Makefile |
8bad63a0 | 332 | doc/examples/Makefile |
c0ecb6ea | 333 | extras/Makefile |
6893800a MJ |
334 | include/Makefile |
335 | src/Makefile | |
48d848c7 | 336 | tests/Makefile |
f5ab766e MD |
337 | tests/common/Makefile |
338 | tests/unit/Makefile | |
339 | tests/benchmark/Makefile | |
340 | tests/regression/Makefile | |
1b387491 | 341 | tests/utils/Makefile |
6893800a MJ |
342 | src/liburcu.pc |
343 | src/liburcu-bp.pc | |
344 | src/liburcu-cds.pc | |
345 | src/liburcu-qsbr.pc | |
346 | src/liburcu-mb.pc | |
799d344f | 347 | src/liburcu-memb.pc |
48d848c7 | 348 | ]) |
03c5782e | 349 | |
de6cb9d5 | 350 | AC_CONFIG_FILES([tests/utils/env.sh],[chmod +x tests/utils/env.sh]) |
03c5782e MJ |
351 | |
352 | ||
48d848c7 | 353 | AC_OUTPUT |
a6412536 | 354 | |
628a1a72 MJ |
355 | # |
356 | # Mini-report on what will be built. | |
357 | # | |
358 | ||
d001c886 MJ |
359 | AE_PPRINT_INIT |
360 | AE_PPRINT_SET_INDENT(1) | |
361 | AE_PPRINT_SET_TS(38) | |
628a1a72 MJ |
362 | |
363 | AS_ECHO | |
d001c886 | 364 | AS_ECHO("${AE_PPRINT_COLOR_BLDBLU}Userspace-RCU $PACKAGE_VERSION${AE_PPRINT_COLOR_RST}") |
628a1a72 MJ |
365 | AS_ECHO |
366 | ||
d001c886 | 367 | AE_PPRINT_SUBTITLE([Features]) |
628a1a72 | 368 | |
d001c886 | 369 | AE_PPRINT_PROP_STRING([Target architecture], $host_cpu) |
628a1a72 MJ |
370 | |
371 | # SMP support enabled/disabled | |
86bc2ad8 | 372 | AE_IS_FEATURE_ENABLED([smp-support]) && value=1 || value=0 |
d001c886 | 373 | AE_PPRINT_PROP_BOOL([SMP support], $value) |
628a1a72 | 374 | |
628a1a72 | 375 | # TLS |
86bc2ad8 | 376 | AE_IS_FEATURE_ENABLED([compiler-tls]) && value="compiler TLS" || value="pthread_getspecific()" |
d001c886 | 377 | AE_PPRINT_PROP_STRING([Thread Local Storage (TLS)], [$value]) |
628a1a72 MJ |
378 | |
379 | # clock_gettime() available | |
c673679b | 380 | test "x$ac_cv_search_function_clock_gettime" != "xno" && value=1 || value=0 |
d001c886 | 381 | AE_PPRINT_PROP_BOOL([clock_gettime()], $value) |
628a1a72 MJ |
382 | |
383 | # Require membarrier | |
86bc2ad8 | 384 | AE_IS_FEATURE_ENABLED([sys-membarrier-fallback]) && value=0 || value=1 |
d001c886 | 385 | AE_PPRINT_PROP_BOOL([Require membarrier], $value) |
628a1a72 MJ |
386 | |
387 | # RCU debug enabled/disabled | |
86bc2ad8 | 388 | AE_IS_FEATURE_ENABLED([rcu-debug]) && value=1 || value=0 |
d001c886 | 389 | AE_PPRINT_PROP_BOOL([Internal debugging], $value) |
628a1a72 | 390 | |
d7c76f85 | 391 | # rculfhash iterator debug enabled/disabled |
86bc2ad8 | 392 | AE_IS_FEATURE_ENABLED([cds-lfht-iter-debug]) && value=1 || value=0 |
d001c886 | 393 | AE_PPRINT_PROP_BOOL([Lock-free HT iterator debugging], $value) |
d7c76f85 | 394 | |
d001c886 | 395 | AE_PPRINT_PROP_BOOL([Multi-flavor support], 1) |
4477a870 | 396 | |
3afcf5a0 OD |
397 | # atomic builtins enabled/disabled |
398 | AE_IS_FEATURE_ENABLED([compiler-atomic-builtins]) && value=1 || value=0 | |
399 | AE_PPRINT_PROP_BOOL([Use compiler atomic builtins], $value) | |
400 | ||
0e2125fb OD |
401 | # legacy memory barriers |
402 | AE_IS_FEATURE_ENABLED([legacy-mb]) && value=1 || value=0 | |
403 | AE_PPRINT_PROP_BOOL([Emit legacy memory barriers], $value) | |
404 | ||
628a1a72 MJ |
405 | report_bindir="`eval eval echo $bindir`" |
406 | report_libdir="`eval eval echo $libdir`" | |
407 | ||
86bc2ad8 | 408 | # Print the bindir and libdir this 'make install' will install into. |
628a1a72 | 409 | AS_ECHO |
d001c886 MJ |
410 | AE_PPRINT_SUBTITLE([Install directories]) |
411 | AE_PPRINT_PROP_STRING([Binaries], [$report_bindir]) | |
412 | AE_PPRINT_PROP_STRING([Libraries], [$report_libdir]) | |
75478b32 | 413 |