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1AC_PREREQ(2.59)
2AC_INIT([userspace-rcu],[0.12.0],[mathieu dot desnoyers at efficios dot com], [], [http://liburcu.org/])
3
4# Following the numbering scheme proposed by libtool for the library version
5# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
6AC_SUBST([URCU_LIBRARY_VERSION], [7:0:1])
7
8AC_CONFIG_HEADERS([include/config.h include/urcu/config.h])
9AC_CONFIG_AUX_DIR([config])
10AC_CONFIG_MACRO_DIR([m4])
11
12AC_CANONICAL_TARGET
13AC_CANONICAL_HOST
14
15AM_INIT_AUTOMAKE([1.12 foreign dist-bzip2 no-dist-gzip nostdinc])
16AM_MAINTAINER_MODE([enable])
17
18# Enable silent rules if available (Introduced in AM 1.11)
19m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
20
21AC_REQUIRE_AUX_FILE([tap-driver.sh])
22
23AH_TEMPLATE([CONFIG_RCU_SMP], [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.])
24AH_TEMPLATE([CONFIG_RCU_TLS], [TLS provided by the compiler.])
25AH_TEMPLATE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [clock_gettime() is detected.])
26AH_TEMPLATE([CONFIG_RCU_FORCE_SYS_MEMBARRIER], [Require the operating system to support the membarrier system call for default and bulletproof flavors.])
27AH_TEMPLATE([CONFIG_RCU_DEBUG], [Enable internal debugging self-checks. Introduces a performance penalty.])
28AH_TEMPLATE([CONFIG_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.])
29
30# Allow requiring the operating system to support the membarrier system
31# call. Applies to default and bulletproof flavors.
32AC_ARG_ENABLE([sys-membarrier-fallback],
33 AS_HELP_STRING([--disable-sys-membarrier-fallback], [Abort if sys-membarrier is needed but not available rather than using a fallback.]),
34 [def_sys_membarrier_fallback=$enableval],
35 [def_sys_membarrier_fallback="yes"])
36AS_IF([test "x$def_sys_membarrier_fallback" != "xyes"], [AC_DEFINE([CONFIG_RCU_FORCE_SYS_MEMBARRIER], [1])])
37
38# Allow overriding storage used for TLS variables.
39AC_ARG_ENABLE([compiler-tls],
40 AS_HELP_STRING([--disable-compiler-tls], [Use pthread_getspecific() to emulate Thread Local Storage (TLS) variables.]),
41 [def_compiler_tls=$enableval],
42 [def_compiler_tls="yes"])
43
44# Checks for C compiler
45AC_USE_SYSTEM_EXTENSIONS
46AC_PROG_CC
47AC_PROG_CC_STDC
48
49AS_IF([test "x$def_compiler_tls" = "xyes"], AC_DEFINE([CONFIG_RCU_TLS], [1]), [:])
50
51# Checks for programs.
52AC_PROG_AWK
53AC_PROG_MAKE_SET
54AC_CHECK_PROGS(NPROC, [nproc gnproc])
55AC_CHECK_PROGS(GETCONF, [getconf])
56AS_IF([test "x$NPROC" != "x"],
57 [NPROC_CMD=$NPROC],
58 [AS_IF([test "x$GETCONF" != "x"],
59 [NPROC_CMD="$GETCONF _NPROCESSORS_ONLN"],
60 [NPROC_CMD="echo 1"]
61 )]
62)
63AC_SUBST([NPROC_CMD], [$NPROC_CMD])
64
65LT_INIT
66
67# Checks for typedefs, structures, and compiler characteristics.
68AC_C_INLINE
69AC_TYPE_PID_T
70AC_TYPE_SIZE_T
71AC_TYPE_SSIZE_T
72AC_TYPE_UINT16_T
73AC_TYPE_INT32_T
74AC_TYPE_UINT32_T
75AC_TYPE_UINT64_T
76AC_TYPE_UINT8_T
77
78AX_C___ATTRIBUTE__
79AS_IF([test "x$ax_cv___attribute__" = "xyes"],
80 [:],
81 [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])])
82
83AX_PTHREAD(,[AC_MSG_ERROR([Could not configure pthreads support])])
84
85AM_CFLAGS="$AM_CFLAGS $PTHREAD_CFLAGS"
86
87# Checks for library functions.
88AC_FUNC_MMAP
89AC_FUNC_FORK
90AC_CHECK_FUNCS([ \
91 atexit \
92 getcpuid \
93 gettid \
94 gettimeofday \
95 memeset \
96 memset \
97 munmap \
98 rand_r \
99 sched_getcpu \
100 strerror \
101 strtoul \
102 sysconf \
103])
104
105# AC_FUNC_MALLOC causes problems when cross-compiling.
106#AC_FUNC_MALLOC
107
108# Check for headers
109AC_HEADER_STDBOOL
110AC_CHECK_HEADERS([ \
111 limits.h \
112 stddef.h \
113 sys/param.h \
114 sys/time.h \
115])
116
117AS_CASE([$host],[*-cygwin*],
118 [AM_CONDITIONAL(USE_CYGWIN, true)],
119 [AM_CONDITIONAL(USE_CYGWIN, false)]
120)
121
122AS_IF([test "$host_cpu" = "armv7l"],[
123 AM_CFLAGS="$AM_CFLAGS -mcpu=cortex-a9 -mtune=cortex-a9 -O1"
124])
125
126# Search for clock_gettime
127AC_SEARCH_LIBS([clock_gettime], [rt], [
128 AC_DEFINE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [1])
129 config_rcu_have_clock_gettime=yes
130], [])
131
132AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"])
133
134# smp-support configure option
135AC_ARG_ENABLE([smp-support],
136 AS_HELP_STRING([--disable-smp-support], [Disable SMP support. Warning: only use this on uniprocessor systems. [default=enabled]]),
137 [def_smp_support=$enableval],
138 [def_smp_support="yes"])
139AS_IF([test "x$def_smp_support" = "xyes"], [AC_DEFINE([CONFIG_RCU_SMP], [1])])
140
141# RCU debugging option
142AC_ARG_ENABLE([rcu-debug],
143 AS_HELP_STRING([--enable-rcu-debug], [Enable internal debugging
144 self-checks. Introduces a performance penalty.]))
145AS_IF([test "x$enable_rcu_debug" = "xyes"], [
146 AC_DEFINE([CONFIG_RCU_DEBUG], [1])
147])
148
149# rculfhash iterator debugging
150AC_ARG_ENABLE([cds-lfht-iter-debug],
151 AS_HELP_STRING([--enable-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.]))
152AS_IF([test "x$enable_cds_lfht_iter_debug" = "xyes"], [
153 AC_DEFINE([CONFIG_CDS_LFHT_ITER_DEBUG], [1])
154])
155
156# From the sched_setaffinity(2)'s man page:
157# ~~~~
158# The CPU affinity system calls were introduced in Linux kernel 2.5.8.
159# The library interfaces were introduced in glibc 2.3. Initially, the
160# glibc interfaces included a cpusetsize argument. In glibc 2.3.3,
161# the cpuset size argument was removed, but this argument was
162# restored in glibc 2.3.4.
163# ~~~~
164
165# In addition to that, some vendors ported the system call to 2.4
166# kernels.
167
168# Furthermore, when the function first appeared, the MASK argument was
169# an unsigned long pointer, while later it was made into a cpu_set_t
170# pointer. Systems that have the cpu_set_t version also should have
171# the CPU_ZERO, CPU_SET, etc. macros.
172
173# All this mess means we have to cater for at least 3 different
174# sched_setaffinity prototypes:
175
176# ~~~~
177# int sched_setaffinity (pid_t pid, unsigned int len, unsigned long *mask);
178# int sched_setaffinity (pid_t __pid, size_t __cpusetsize, const cpu_set_t *__cpuset);
179# int sched_setaffinity (pid_t __pid, const cpu_set_t *__mask);
180# ~~~~
181
182AC_CHECK_TYPES([cpu_set_t],
183 [have_cpu_set_t="yes"],
184 [have_cpu_set_t="no"],
185 [#include <sched.h>])
186
187# Confirm that we have CPU_ZERO, and it actually works.
188AC_MSG_CHECKING([whether CPU_ZERO works])
189AH_TEMPLATE([HAVE_CPU_ZERO], [Defined to 1 if we have CPU_ZERO and it works])
190AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
191 #include <sched.h>
192 int main()
193 {
194 cpu_set_t foo; CPU_ZERO(&foo);
195 return 0;
196 }
197 ]])
198],[
199 AC_DEFINE(HAVE_CPU_ZERO, 1)
200 AC_MSG_RESULT([yes])
201],[
202 AC_MSG_RESULT([no])
203])
204
205# Confirm that we have CPU_SET, and it actually works.
206AC_MSG_CHECKING([whether CPU_SET works])
207AH_TEMPLATE([HAVE_CPU_SET], [Defined to 1 if we have CPU_SET and it works])
208AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
209 #include <sched.h>
210 int main()
211 {
212 cpu_set_t foo; CPU_SET(0, &foo);
213 return 0;
214 }
215 ]])
216],[
217 AC_DEFINE(HAVE_CPU_SET, 1)
218 AC_MSG_RESULT([yes])
219],[
220 AC_MSG_RESULT([no])
221])
222
223# First check if the function is available at all.
224AC_CHECK_FUNCS([sched_setaffinity],[
225 # Okay, we have it. Check if also have cpu_set_t. If we don't,
226 # then we have the first version using unsigned long, and no
227 # CPU_ZERO, etc. macros. If we do have cpu_set_t, we may have the
228 # version with 2 or 3 arguments. In that case, CPU_ZERO, etc.,
229 # should also be present, but we confirm nonetheless.
230
231 AS_IF([test "x$have_cpu_set_t" = "xyes"], [
232 # We do have it.
233 # Check how many arguments does sched_setaffinity take.
234 # Should be 3 or 2.
235 AC_MSG_CHECKING([how many arguments sched_setaffinity takes])
236 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
237 #include <sched.h>
238 int main()
239 {
240 cpu_set_t foo;
241 sched_setaffinity(0, sizeof (foo), &foo);
242 return 0;
243 }
244 ]])
245 ],
246 [sched_set_affinity_args=3],
247 [sched_set_affinity_args=2])
248 AC_DEFINE_UNQUOTED(SCHED_SETAFFINITY_ARGS,
249 $sched_set_affinity_args,
250 [Defined to sched_setaffinity's number of arguments.])
251 AC_MSG_RESULT([$sched_set_affinity_args])
252 ],[
253 # No cpu_set_t, always 3 args.
254 AC_DEFINE(SCHED_SETAFFINITY_ARGS, 3)
255 ])
256])
257
258AM_CPPFLAGS="-include config.h"
259AC_SUBST(AM_CPPFLAGS)
260
261AM_CFLAGS="-Wall -Wextra -Wno-unused-parameter $AM_CFLAGS"
262AC_SUBST(AM_CFLAGS)
263
264AC_CONFIG_FILES([
265 Makefile
266 doc/Makefile
267 doc/examples/Makefile
268 include/Makefile
269 src/Makefile
270 tests/Makefile
271 tests/common/Makefile
272 tests/unit/Makefile
273 tests/benchmark/Makefile
274 tests/regression/Makefile
275 tests/utils/Makefile
276 src/liburcu.pc
277 src/liburcu-bp.pc
278 src/liburcu-cds.pc
279 src/liburcu-qsbr.pc
280 src/liburcu-mb.pc
281 src/liburcu-signal.pc
282])
283
284AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_perf_global.tap])
285AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_perf_percpu.tap])
286AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_perf_perthread.tap])
287AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_rperf_global.tap])
288AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_rperf_percpu.tap])
289AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_rperf_perthread.tap])
290AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_stress_global.tap])
291AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_stress_percpu.tap])
292AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_stress_perthread.tap])
293AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_uperf_global.tap])
294AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_uperf_percpu.tap])
295AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_uperf_perthread.tap])
296AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_perf_global.tap])
297AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_perf_percpu.tap])
298AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_perf_perthread.tap])
299AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_rperf_global.tap])
300AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_rperf_percpu.tap])
301AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_rperf_perthread.tap])
302AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_stress_global.tap])
303AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_stress_percpu.tap])
304AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_stress_perthread.tap])
305AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_uperf_global.tap])
306AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_uperf_percpu.tap])
307AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_uperf_perthread.tap])
308AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_perf_global.tap])
309AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_perf_percpu.tap])
310AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_perf_perthread.tap])
311AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_rperf_global.tap])
312AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_rperf_percpu.tap])
313AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_rperf_perthread.tap])
314AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_stress_global.tap])
315AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_stress_percpu.tap])
316AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_stress_perthread.tap])
317AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_uperf_global.tap])
318AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_uperf_percpu.tap])
319AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_uperf_perthread.tap])
320AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_perf_global.tap])
321AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_perf_percpu.tap])
322AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_perf_perthread.tap])
323AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_rperf_global.tap])
324AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_rperf_percpu.tap])
325AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_rperf_perthread.tap])
326AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_stress_global.tap])
327AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_stress_percpu.tap])
328AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_stress_perthread.tap])
329AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_uperf_global.tap])
330AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_uperf_percpu.tap])
331AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_uperf_perthread.tap])
332AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_perf_global.tap])
333AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_perf_percpu.tap])
334AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_perf_perthread.tap])
335AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_rperf_global.tap])
336AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_rperf_percpu.tap])
337AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_rperf_perthread.tap])
338AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_stress_global.tap])
339AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_stress_percpu.tap])
340AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_stress_perthread.tap])
341AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_uperf_global.tap])
342AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_uperf_percpu.tap])
343AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_uperf_perthread.tap])
344
345
346AC_OUTPUT
347
348#
349# Mini-report on what will be built.
350#
351
352PPRINT_INIT
353PPRINT_SET_INDENT(1)
354PPRINT_SET_TS(38)
355
356AS_ECHO
357AS_ECHO("${PPRINT_COLOR_BLDBLU}Userspace-RCU $PACKAGE_VERSION${PPRINT_COLOR_RST}")
358AS_ECHO
359
360PPRINT_SUBTITLE([Features])
361
362PPRINT_PROP_STRING([Target architecture], $host_cpu)
363
364# SMP support enabled/disabled
365test "x$def_smp_support" = "xyes" && value=1 || value=0
366PPRINT_PROP_BOOL([SMP support], $value)
367
368# TLS
369test "x$def_compiler_tls" = "xyes" && value="compiler TLS" || value="pthread_getspecific()"
370PPRINT_PROP_STRING([Thread Local Storage (TLS)], [$value])
371
372# clock_gettime() available
373test "x$config_rcu_have_clock_gettime" = "xyes" && value=1 || value=0
374PPRINT_PROP_BOOL([clock_gettime()], $value)
375
376# Require membarrier
377test "x$def_sys_membarrier_fallback" != "xyes" && value=1 || value=0
378PPRINT_PROP_BOOL([Require membarrier], $value)
379
380# RCU debug enabled/disabled
381test "x$enable_rcu_debug" = "xyes" && value=1 || value=0
382PPRINT_PROP_BOOL([Internal debugging], $value)
383
384# rculfhash iterator debug enabled/disabled
385test "x$enable_cds_lfht_iter_debug" = "xyes" && value=1 || value=0
386PPRINT_PROP_BOOL([Lock-free hash table iterator debugging], $value)
387
388PPRINT_PROP_BOOL([Multi-flavor support], 1)
389
390report_bindir="`eval eval echo $bindir`"
391report_libdir="`eval eval echo $libdir`"
392
393# Print the bindir and libdir this `make install' will install into.
394AS_ECHO
395PPRINT_SUBTITLE([Install directories])
396PPRINT_PROP_STRING([Binaries], [$report_bindir])
397PPRINT_PROP_STRING([Libraries], [$report_libdir])
398
Userspace RCU (urcu) for Linux
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