configure.ac

   1 AC_PREREQ(2.59)
   2 AC_INIT([userspace-rcu],[0.11.0-pre],[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
   6 AC_SUBST([URCU_LIBRARY_VERSION], [6:0:0])
   7
   8 AC_CONFIG_HEADERS([include/config.h include/urcu/config.h])
   9 AC_CONFIG_AUX_DIR([config])
  10 AC_CONFIG_MACRO_DIR([m4])
  11
  12 AC_CANONICAL_TARGET
  13 AC_CANONICAL_HOST
  14
  15 AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip nostdinc])
  16 AM_MAINTAINER_MODE([enable])
  17
  18 # Enable silent rules if available (Introduced in AM 1.11)
  19 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
  20
  21 AC_REQUIRE_AUX_FILE([tap-driver.sh])
  22
  23 AH_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.])
  24 AH_TEMPLATE([CONFIG_RCU_HAVE_FENCE], [Defined when on a system that has memory fence instructions.])
  25 AH_TEMPLATE([CONFIG_RCU_HAVE_FUTEX], [Defined when on a system with futex support.])
  26 AH_TEMPLATE([CONFIG_RCU_COMPAT_ARCH], [Compatibility mode for i386 which lacks cmpxchg instruction.])
  27 AH_TEMPLATE([CONFIG_RCU_ARM_HAVE_DMB], [Use the dmb instruction if available for use on ARM.])
  28 AH_TEMPLATE([CONFIG_RCU_TLS], [TLS provided by the compiler.])
  29 AH_TEMPLATE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [clock_gettime() is detected.])
  30 AH_TEMPLATE([CONFIG_RCU_FORCE_SYS_MEMBARRIER], [Require the operating system to support the membarrier system call for default and bulletproof flavors.])
  31 AH_TEMPLATE([CONFIG_RCU_DEBUG], [Enable internal debugging self-checks. Introduce performance penalty.])
  32 AH_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.])
  33
  34 # Allow requiring the operating system to support the membarrier system
  35 # call. Applies to default and bulletproof flavors.
  36 AC_ARG_ENABLE([sys-membarrier-fallback],
  37         AS_HELP_STRING([--disable-sys-membarrier-fallback], [Abort if sys-membarrier is needed but not available rather than using a fallback.]),
  38         [def_sys_membarrier_fallback=$enableval],
  39         [def_sys_membarrier_fallback="yes"])
  40 AS_IF([test "x$def_sys_membarrier_fallback" != "xyes"], [AC_DEFINE([CONFIG_RCU_FORCE_SYS_MEMBARRIER], [1])])
  41
  42 # Allow overriding storage used for TLS variables.
  43 AC_ARG_ENABLE([compiler-tls],
  44         AS_HELP_STRING([--disable-compiler-tls], [Use pthread_getspecific() to emulate Thread Local Storage (TLS) variables.]),
  45         [def_compiler_tls=$enableval],
  46         [def_compiler_tls="yes"])
  47
  48 # Checks for C compiler
  49 AC_USE_SYSTEM_EXTENSIONS
  50 AC_PROG_CC
  51 AC_PROG_CC_STDC
  52
  53 # If not overridden, use ax_tls.m4 to check if TLS is available.
  54 AS_IF([test "x$def_compiler_tls" = "xyes"],
  55         [AX_TLS([def_tls_detect=$ac_cv_tls], [:])],
  56         [:])
  57
  58 AS_IF([test "x$def_tls_detect" = "x"],
  59         [:],
  60         [AC_DEFINE_UNQUOTED([CONFIG_RCU_TLS], $def_tls_detect)])
  61
  62 # Checks for programs.
  63 AC_PROG_AWK
  64 AC_PROG_MAKE_SET
  65 AC_CHECK_PROGS(NPROC, [nproc gnproc])
  66 AC_CHECK_PROGS(GETCONF, [getconf])
  67 AS_IF([test "x$NPROC" != "x"],
  68         [NPROC_CMD=$NPROC],
  69         [AS_IF([test "x$GETCONF" != "x"],
  70                 [NPROC_CMD="$GETCONF _NPROCESSORS_ONLN"],
  71                 [NPROC_CMD="echo 1"]
  72         )]
  73 )
  74 AC_SUBST([NPROC_CMD], [$NPROC_CMD])
  75
  76 LT_INIT
  77
  78 # Checks for typedefs, structures, and compiler characteristics.
  79 AC_C_INLINE
  80 AC_TYPE_PID_T
  81 AC_TYPE_SIZE_T
  82 AC_TYPE_SSIZE_T
  83 AC_TYPE_UINT16_T
  84 AC_TYPE_INT32_T
  85 AC_TYPE_UINT32_T
  86 AC_TYPE_UINT64_T
  87 AC_TYPE_UINT8_T
  88
  89 AX_C___ATTRIBUTE__
  90 AS_IF([test "x$ax_cv___attribute__" = "xyes"],
  91         [:],
  92         [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])])
  93
  94 AX_PTHREAD(,[AC_MSG_ERROR([Could not configure pthreads support])])
  95
  96 AM_CFLAGS="$AM_CFLAGS $PTHREAD_CFLAGS"
  97
  98 # Checks for library functions.
  99 AC_FUNC_MMAP
 100 AC_FUNC_FORK
 101 AC_CHECK_FUNCS([ \
 102         atexit \
 103         getcpuid \
 104         gettid \
 105         gettimeofday \
 106         memeset \
 107         memset \
 108         munmap \
 109         rand_r \
 110         sched_getcpu \
 111         strerror \
 112         strtoul \
 113         sysconf \
 114 ])
 115
 116 # AC_FUNC_MALLOC causes problems when cross-compiling.
 117 #AC_FUNC_MALLOC
 118
 119 # Check for headers
 120 AC_HEADER_STDBOOL
 121 AC_CHECK_HEADERS([ \
 122         limits.h \
 123         stddef.h \
 124         sys/param.h \
 125         sys/time.h \
 126 ])
 127
 128 # Find arch type
 129 AS_CASE([$host_cpu],
 130         [k1om], [ARCHTYPE="x86"],
 131         [i386], [ARCHTYPE="x86" && SUBARCHTYPE="x86compat"],
 132         [i486], [ARCHTYPE="x86"],
 133         [i586], [ARCHTYPE="x86"],
 134         [i686], [ARCHTYPE="x86"],
 135         [amd64], [ARCHTYPE="x86"],
 136         [x86_64], [ARCHTYPE="x86"],
 137         [powerpc], [ARCHTYPE="ppc"],
 138         [ppc64], [ARCHTYPE="ppc"],
 139         [powerpc64], [ARCHTYPE="ppc"],
 140         [powerpc64le], [ARCHTYPE="ppc"],
 141         [ppc], [ARCHTYPE="ppc"],
 142         [s390], [ARCHTYPE="s390"],
 143         [s390x], [ARCHTYPE="s390"],
 144         [sparc], [ARCHTYPE="sparc64"],
 145         [sparc64], [ARCHTYPE="sparc64"],
 146         [alpha*], [ARCHTYPE="alpha"],
 147         [ia64], [ARCHTYPE="ia64"],
 148         [arm*], [ARCHTYPE="arm"],
 149         [aarch64*], [ARCHTYPE="aarch64"],
 150         [mips*], [ARCHTYPE="mips"],
 151         [nios2*], [ARCHTYPE="nios2"],
 152         [tile*], [ARCHTYPE="tile"],
 153         [hppa*], [ARCHTYPE="hppa"],
 154         [m68k], [ARCHTYPE="m68k"],
 155         [riscv*], [ARCHTYPE="riscv"],
 156         [ARCHTYPE="unknown"]
 157 )
 158
 159 AS_CASE([$host],[*-cygwin*],
 160         [AM_CONDITIONAL(USE_CYGWIN, true)],
 161         [AM_CONDITIONAL(USE_CYGWIN, false)]
 162 )
 163
 164 AC_SUBST(ARCHTYPE)
 165 AC_SUBST(SUBARCHTYPE)
 166
 167 UATOMICSRC=include/urcu/uatomic/$ARCHTYPE.h
 168 ARCHSRC=include/urcu/arch/$ARCHTYPE.h
 169
 170 AS_IF([test "x$SUBARCHTYPE" = xx86compat],[
 171         AC_DEFINE([CONFIG_RCU_COMPAT_ARCH], [1])
 172 ])
 173
 174 AS_IF([test "$host_cpu" = "armv7l"],[
 175         AM_CFLAGS="$AM_CFLAGS -mcpu=cortex-a9 -mtune=cortex-a9 -O1"
 176 ])
 177
 178 # ARM-specific checks
 179 AS_IF([test "x$ARCHTYPE" = "xarm"],[
 180         AC_MSG_CHECKING([for dmb instruction])
 181         AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 182                                 int main()
 183                                 {
 184                                         asm volatile("dmb":::"memory");
 185                                         return 0;
 186                                 }
 187                 ]])
 188         ],[
 189                 AC_MSG_RESULT([yes])
 190                 AC_DEFINE([CONFIG_RCU_ARM_HAVE_DMB], [1])
 191         ],[
 192                 AC_MSG_RESULT([no])
 193         ])
 194 ])
 195
 196 # Tile-specific checks
 197 AS_IF([echo "$host_cpu" | grep "^tile"],[
 198         AC_MSG_CHECKING([for Tile architecture type])
 199         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 200                                 #ifndef __tilegx__
 201                                 #error
 202                                 #endif
 203                 ]])
 204         ],[
 205                 AC_MSG_RESULT([ok])
 206         ],[
 207                 AC_MSG_FAILURE([URCU has only been tested on the TileGx architecture. For other Tile* architectures, please run the tests first and report the results to the maintainer so that proper support can be added.])
 208         ])
 209 ])
 210
 211 # x86-specific checks
 212 AS_IF([test "x$ARCHTYPE" = "xx86"],[
 213         AC_MSG_CHECKING([if architecture really supports the mfence instruction])
 214         #For now, using lock; addl compatibility mode even for i686, because the
 215         #Pentium III is seen as a i686, but lacks mfence instruction.
 216         #Only using fence for x86_64.
 217         #
 218         #k1om is the name for the Intel MIC family (Xeon Phi). It is an x86_64
 219         #variant but lacks fence instructions.
 220         AS_IF([test "x$host_cpu" != "xi386" -a "x$host_cpu" != "xi486" -a "x$host_cpu" != "xi586" -a "x$host_cpu" != "xi686" -a "x$host_vendor" != "xk1om" -a "x$host_cpu" != "xk1om"],[
 221                 AC_MSG_RESULT([yes])
 222                 AC_DEFINE([CONFIG_RCU_HAVE_FENCE], [1])
 223                 config_rcu_have_fence=yes
 224         ],[
 225                 AC_MSG_RESULT([no])
 226                 config_rcu_have_fence=no
 227         ])
 228 ])
 229
 230 # Check if sys_futex() is available
 231 AC_MSG_CHECKING([for sys_futex()])
 232 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 233                 #include <sys/syscall.h>
 234                 #ifndef __NR_futex
 235                 #error "futexes not available"
 236                 #endif
 237         ]])
 238 ],[
 239         AC_MSG_RESULT([yes])
 240         AC_DEFINE([CONFIG_RCU_HAVE_FUTEX], [1])
 241         compat_futex_test=0
 242 ],[
 243         AC_MSG_RESULT([no])
 244         compat_futex_test=1
 245 ])
 246
 247 # Search for clock_gettime
 248 AC_SEARCH_LIBS([clock_gettime], [rt], [
 249         AC_DEFINE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [1])
 250         config_rcu_have_clock_gettime=yes
 251 ], [])
 252
 253 AM_CONDITIONAL([COMPAT_FUTEX], [test "x$compat_futex_test" = "x1"])
 254 AM_CONDITIONAL([COMPAT_ARCH], [test "x$SUBARCHTYPE" = "xx86compat"])
 255 AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"])
 256
 257 # smp-support configure option
 258 AC_ARG_ENABLE([smp-support],
 259         AS_HELP_STRING([--disable-smp-support], [Disable SMP support. Warning: only use this on uniprocessor systems. [default=enabled]]),
 260         [def_smp_support=$enableval],
 261         [def_smp_support="yes"])
 262 AS_IF([test "x$def_smp_support" = "xyes"], [AC_DEFINE([CONFIG_RCU_SMP], [1])])
 263
 264 # RCU debugging option
 265 AC_ARG_ENABLE([rcu-debug],
 266       AS_HELP_STRING([--enable-rcu-debug], [Enable internal debugging
 267                       self-checks. Introduce performance penalty.]))
 268 AS_IF([test "x$enable_rcu_debug" = "xyes"], [
 269        AC_DEFINE([CONFIG_RCU_DEBUG], [1])
 270 ])
 271
 272 # rculfhash iterator debugging
 273 AC_ARG_ENABLE([cds-lfht-iter-debug],
 274       AS_HELP_STRING([--enable-cds-lfht-iter-debug], [Enable extra debugging checks for lock-free hash table iterator traversal. Alters the rculfhash ABI. Make sure to compile both library and application with matching configuration.]))
 275 AS_IF([test "x$enable_cds_lfht_iter_debug" = "xyes"], [
 276        AC_DEFINE([CONFIG_CDS_LFHT_ITER_DEBUG], [1])
 277 ])
 278
 279 # From the sched_setaffinity(2)'s man page:
 280 # ~~~~
 281 # The CPU affinity system calls were introduced in Linux kernel 2.5.8.
 282 # The library interfaces were introduced in glibc 2.3.  Initially, the
 283 # glibc interfaces included a cpusetsize argument.  In glibc 2.3.3,
 284 # the cpuset size argument was removed, but this argument was
 285 # restored in glibc 2.3.4.
 286 # ~~~~
 287
 288 # In addition to that, some vendors ported the system call to 2.4
 289 # kernels.
 290
 291 # Furthermore, when the function first appeared, the MASK argument was
 292 # an unsigned long pointer, while later it was made into a cpu_set_t
 293 # pointer.  Systems that have the cpu_set_t version also should have
 294 # the CPU_ZERO, CPU_SET, etc. macros.
 295
 296 # All this mess means we have to cater for at least 3 different
 297 # sched_setaffinity prototypes:
 298
 299 # ~~~~
 300 #  int sched_setaffinity (pid_t pid, unsigned int len, unsigned long *mask);
 301 #  int sched_setaffinity (pid_t __pid, size_t __cpusetsize, const cpu_set_t *__cpuset);
 302 #  int sched_setaffinity (pid_t __pid, const cpu_set_t *__mask);
 303 # ~~~~
 304
 305 AC_CHECK_TYPES([cpu_set_t],
 306         [have_cpu_set_t="yes"],
 307         [have_cpu_set_t="no"],
 308         [#include <sched.h>])
 309
 310 # Confirm that we have CPU_ZERO, and it actually works.
 311 AC_MSG_CHECKING([whether CPU_ZERO works])
 312 AH_TEMPLATE([HAVE_CPU_ZERO], [Defined to 1 if we have CPU_ZERO and it works])
 313 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 314                 #include <sched.h>
 315                 int main()
 316                 {
 317                         cpu_set_t foo; CPU_ZERO(&foo);
 318                         return 0;
 319                 }
 320         ]])
 321 ],[
 322         AC_DEFINE(HAVE_CPU_ZERO, 1)
 323         AC_MSG_RESULT([yes])
 324 ],[
 325         AC_MSG_RESULT([no])
 326 ])
 327
 328 # Confirm that we have CPU_SET, and it actually works.
 329 AC_MSG_CHECKING([whether CPU_SET works])
 330 AH_TEMPLATE([HAVE_CPU_SET], [Defined to 1 if we have CPU_SET and it works])
 331 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 332                 #include <sched.h>
 333                 int main()
 334                 {
 335                         cpu_set_t foo, mask; CPU_SET(0, &foo);
 336                         return 0;
 337                 }
 338         ]])
 339 ],[
 340         AC_DEFINE(HAVE_CPU_SET, 1)
 341         AC_MSG_RESULT([yes])
 342 ],[
 343         AC_MSG_RESULT([no])
 344 ])
 345
 346 # First check if the function is available at all.
 347 AC_CHECK_FUNCS([sched_setaffinity],[
 348         # Okay, we have it.  Check if also have cpu_set_t.  If we don't,
 349         # then we have the first version using unsigned long, and no
 350         # CPU_ZERO, etc. macros.  If we do have cpu_set_t, we may have the
 351         # version with 2 or 3 arguments.  In that case, CPU_ZERO, etc.,
 352         # should also be present, but we confirm nonetheless.
 353
 354         AS_IF([test "x$have_cpu_set_t" = "xyes"], [
 355                 # We do have it.
 356                 # Check how many arguments does sched_setaffinity take.
 357                 # Should be 3 or 2.
 358                 AC_MSG_CHECKING([how many arguments sched_setaffinity takes])
 359                 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 360                                 #include <sched.h>
 361                                 int main()
 362                                 {
 363                                         cpu_set_t foo;
 364                                         sched_setaffinity(0, sizeof (foo), &foo);
 365                                         return 0;
 366                                 }
 367                         ]])
 368                 ],
 369                 [sched_set_affinity_args=3],
 370                 [sched_set_affinity_args=2])
 371                 AC_DEFINE_UNQUOTED(SCHED_SETAFFINITY_ARGS,
 372                         $sched_set_affinity_args,
 373                         [Defined to sched_setaffinity's number of arguments.])
 374                 AC_MSG_RESULT([$sched_set_affinity_args])
 375         ],[
 376                 # No cpu_set_t, always 3 args.
 377                 AC_DEFINE(SCHED_SETAFFINITY_ARGS, 3)
 378         ])
 379 ])
 380
 381 AM_CPPFLAGS="-include config.h"
 382 AC_SUBST(AM_CPPFLAGS)
 383
 384 AM_CFLAGS="-Wall -Wextra -Wno-unused-parameter $AM_CFLAGS"
 385 AC_SUBST(AM_CFLAGS)
 386
 387 AC_CONFIG_LINKS([
 388         include/urcu/arch.h:$ARCHSRC
 389         include/urcu/uatomic.h:$UATOMICSRC
 390 ])
 391 AC_CONFIG_FILES([
 392         Makefile
 393         doc/Makefile
 394         doc/examples/Makefile
 395         include/Makefile
 396         src/Makefile
 397         tests/Makefile
 398         tests/common/Makefile
 399         tests/unit/Makefile
 400         tests/benchmark/Makefile
 401         tests/regression/Makefile
 402         tests/utils/Makefile
 403         src/liburcu.pc
 404         src/liburcu-bp.pc
 405         src/liburcu-cds.pc
 406         src/liburcu-qsbr.pc
 407         src/liburcu-mb.pc
 408         src/liburcu-signal.pc
 409 ])
 410
 411 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_perf_global.tap])
 412 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_perf_percpu.tap])
 413 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_perf_perthread.tap])
 414 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_rperf_global.tap])
 415 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_rperf_percpu.tap])
 416 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_rperf_perthread.tap])
 417 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_stress_global.tap])
 418 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_stress_percpu.tap])
 419 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_stress_perthread.tap])
 420 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_bp_uperf_global.tap])
 421 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_bp_uperf_percpu.tap])
 422 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_bp_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_bp_uperf_perthread.tap])
 423 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_perf_global.tap])
 424 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_perf_percpu.tap])
 425 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_perf_perthread.tap])
 426 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_rperf_global.tap])
 427 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_rperf_percpu.tap])
 428 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_rperf_perthread.tap])
 429 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_stress_global.tap])
 430 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_stress_percpu.tap])
 431 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_stress_perthread.tap])
 432 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_mb_uperf_global.tap])
 433 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_mb_uperf_percpu.tap])
 434 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_mb_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_mb_uperf_perthread.tap])
 435 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_perf_global.tap])
 436 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_perf_percpu.tap])
 437 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_perf_perthread.tap])
 438 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_rperf_global.tap])
 439 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_rperf_percpu.tap])
 440 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_rperf_perthread.tap])
 441 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_stress_global.tap])
 442 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_stress_percpu.tap])
 443 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_stress_perthread.tap])
 444 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_uperf_global.tap])
 445 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_uperf_percpu.tap])
 446 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_membarrier_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_membarrier_uperf_perthread.tap])
 447 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_perf_global.tap])
 448 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_perf_percpu.tap])
 449 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_perf_perthread.tap])
 450 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_rperf_global.tap])
 451 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_rperf_percpu.tap])
 452 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_rperf_perthread.tap])
 453 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_stress_global.tap])
 454 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_stress_percpu.tap])
 455 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_stress_perthread.tap])
 456 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_uperf_global.tap])
 457 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_uperf_percpu.tap])
 458 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_qsbr_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_qsbr_uperf_perthread.tap])
 459 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_perf_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_perf_global.tap])
 460 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_perf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_perf_percpu.tap])
 461 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_perf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_perf_perthread.tap])
 462 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_rperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_rperf_global.tap])
 463 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_rperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_rperf_percpu.tap])
 464 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_rperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_rperf_perthread.tap])
 465 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_stress_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_stress_global.tap])
 466 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_stress_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_stress_percpu.tap])
 467 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_stress_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_stress_perthread.tap])
 468 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_uperf_global.tap], [chmod +x tests/regression/rcutorture_urcu_signal_uperf_global.tap])
 469 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_uperf_percpu.tap], [chmod +x tests/regression/rcutorture_urcu_signal_uperf_percpu.tap])
 470 AC_CONFIG_FILES([tests/regression/rcutorture_urcu_signal_uperf_perthread.tap], [chmod +x tests/regression/rcutorture_urcu_signal_uperf_perthread.tap])
 471
 472
 473 AC_OUTPUT
 474
 475 #
 476 # Mini-report on what will be built.
 477 #
 478
 479 PPRINT_INIT
 480 PPRINT_SET_INDENT(1)
 481 PPRINT_SET_TS(38)
 482
 483 AS_ECHO
 484 AS_ECHO("${PPRINT_COLOR_BLDBLU}Userspace-RCU $PACKAGE_VERSION${PPRINT_COLOR_RST}")
 485 AS_ECHO
 486
 487 PPRINT_SUBTITLE([Features])
 488
 489 PPRINT_PROP_STRING([Target architecture], $host_cpu)
 490
 491 # SMP support enabled/disabled
 492 test "x$def_smp_support" = "xyes" && value=1 || value=0
 493 PPRINT_PROP_BOOL([SMP support], $value)
 494
 495 # Memory fence support available
 496 test "x$config_rcu_have_fence" = "xyes" && value=1 || value=0
 497 PPRINT_PROP_BOOL([Memory fence instructions], $value)
 498
 499 # Futex support available
 500 test "x$compat_futex_test" = "x0" && value=1 || value=0
 501 PPRINT_PROP_BOOL([Futex support], $value)
 502
 503 # TLS
 504 test "x$def_tls_detect" = "x" && value="pthread_getspecific()" || value="$def_tls_detect"
 505 PPRINT_PROP_STRING([Thread Local Storage (TLS)], [$value])
 506
 507 # clock_gettime() available
 508 test "x$config_rcu_have_clock_gettime" = "xyes" && value=1 || value=0
 509 PPRINT_PROP_BOOL([clock_gettime()], $value)
 510
 511 # Require membarrier
 512 test "x$def_sys_membarrier_fallback" != "xyes" && value=1 || value=0
 513 PPRINT_PROP_BOOL([Require membarrier], $value)
 514
 515 # RCU debug enabled/disabled
 516 test "x$enable_rcu_debug" = "xyes" && value=1 || value=0
 517 PPRINT_PROP_BOOL([Internal debugging], $value)
 518
 519 # rculfhash iterator debug enabled/disabled
 520 test "x$enable_cds_lfht_iter_debug" = "xyes" && value=1 || value=0
 521 PPRINT_PROP_BOOL([Lock-free hash table iterator debugging], $value)
 522
 523 PPRINT_PROP_BOOL([Multi-flavor support], 1)
 524
 525 report_bindir="`eval eval echo $bindir`"
 526 report_libdir="`eval eval echo $libdir`"
 527
 528 # Print the bindir and libdir this `make install' will install into.
 529 AS_ECHO
 530 PPRINT_SUBTITLE([Install directories])
 531 PPRINT_PROP_STRING([Binaries], [$report_bindir])
 532 PPRINT_PROP_STRING([Libraries], [$report_libdir])
 533