Fix: tests: invoke destroy APIs for queues/stacks
[urcu.git] / configure.ac
index 6b8a35a992aa4f28aae9d354365e976370619c80..8eec26951e47dce19691843c4b44807c531215a5 100644 (file)
-#                                               -*- Autoconf -*-
-# Process this file with autoconf to produce a configure script.
+AC_PREREQ(2.59)
+AC_INIT([userspace-rcu],[0.9.0],[mathieu dot desnoyers at efficios dot com], [], [http://liburcu.org/])
 
+# Following the numbering scheme proposed by libtool for the library version
+# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
+AC_SUBST([URCU_LIBRARY_VERSION], [4:0:0])
 
-AC_INIT([userspace-rcu], [0.5.4], [mathieu dot desnoyers at efficios dot com])
+AC_CONFIG_SRCDIR([urcu.h])
+AC_CONFIG_HEADERS([config.h urcu/config.h])
 AC_CONFIG_AUX_DIR([config])
+AC_CONFIG_MACRO_DIR([m4])
+
 AC_CANONICAL_TARGET
 AC_CANONICAL_HOST
-AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip])
-m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
-AC_CONFIG_SRCDIR([urcu.h])
-AM_PROG_MKDIR_P
+AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip])
+AM_MAINTAINER_MODE([enable])
 
-AC_CONFIG_HEADERS([config.h urcu/config.h])
+# Enable silent rules if available (Introduced in AM 1.11)
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
-# Keep at the end to do not pollute installed header.
 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.])
 AH_TEMPLATE([CONFIG_RCU_HAVE_FENCE], [Defined when on a system that has memory fence instructions.])
 AH_TEMPLATE([CONFIG_RCU_HAVE_FUTEX], [Defined when on a system with futex support.])
-AH_TEMPLATE([CONFIG_RCU_COMPAT_ARCH], [Compatibility mode for i386 which lacks
-cmpxchg instruction.])
-AH_TEMPLATE([CONFIG_RCU_ARM_HAVE_DMB], [Use the dmb instruction is available for use on ARM.])
+AH_TEMPLATE([CONFIG_RCU_COMPAT_ARCH], [Compatibility mode for i386 which lacks cmpxchg instruction.])
+AH_TEMPLATE([CONFIG_RCU_ARM_HAVE_DMB], [Use the dmb instruction if available for use on ARM.])
+AH_TEMPLATE([CONFIG_RCU_TLS], [TLS provided by the compiler.])
+AH_TEMPLATE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [clock_gettime() is detected.])
 
-# Checks for programs.
+# Allow overriding storage used for TLS variables.
+AC_ARG_ENABLE([compiler-tls],
+       AS_HELP_STRING([--disable-compiler-tls], [Use pthread_getspecific() to emulate Thread Local Storage (TLS) variables.]),
+       [def_compiler_tls=$enableval],
+       [def_compiler_tls="yes"])
+
+# If not overridden, use ax_tls.m4 to check if TLS is available.
+AS_IF([test "x$def_compiler_tls" = "xyes"],
+       [AX_TLS([def_tls_detect=$ac_cv_tls], [:])],
+       [:])
+
+AS_IF([test "x$def_tls_detect" = "x"],
+       [:],
+       [AC_DEFINE_UNQUOTED([CONFIG_RCU_TLS], $def_tls_detect)])
+
+# Checks for C compiler
+AC_USE_SYSTEM_EXTENSIONS
 AC_PROG_CC
+AC_PROG_CC_STDC
+
+# Checks for programs.
+AC_PROG_AWK
 AC_PROG_MAKE_SET
-AC_PROG_LIBTOOL
+AC_CHECK_PROGS(NPROC, [nproc gnproc])
+AC_CHECK_PROGS(GETCONF, [getconf])
+AS_IF([test "x$NPROC" != "x"],
+       [NPROC_CMD=$NPROC],
+       [AS_IF([test "x$GETCONF" != "x"],
+               [NPROC_CMD="$GETCONF _NPROCESSORS_ONLN"],
+               [NPROC_CMD="echo 1"]
+       )]
+)
+AC_SUBST([NPROC_CMD], [$NPROC_CMD])
+
+LT_INIT
 
 # Checks for typedefs, structures, and compiler characteristics.
 AC_C_INLINE
 AC_TYPE_PID_T
 AC_TYPE_SIZE_T
+AC_TYPE_SSIZE_T
+AC_TYPE_UINT16_T
+AC_TYPE_INT32_T
+AC_TYPE_UINT32_T
+AC_TYPE_UINT64_T
+AC_TYPE_UINT8_T
+
+AX_C___ATTRIBUTE__
+AS_IF([test "x$ax_cv___attribute__" = "xyes"],
+       [:],
+       [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])])
+
+AX_PTHREAD(,[AC_MSG_ERROR([Could not configure pthreads support])])
+LIBS="$PTHREAD_LIBS $LIBS"
+CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+CC="$PTHREAD_CC"
 
 # Checks for library functions.
 AC_FUNC_MALLOC
 AC_FUNC_MMAP
-AC_CHECK_FUNCS([bzero gettimeofday munmap sched_getcpu strtoul sysconf])
+AC_FUNC_FORK
+AC_CHECK_FUNCS([ \
+       atexit \
+       getcpuid \
+       gettid \
+       gettimeofday \
+       memeset \
+       memset \
+       munmap \
+       sched_getcpu \
+       strerror \
+       strtoul \
+       sysconf \
+])
+
+# Check for headers
+AC_HEADER_STDBOOL
+AC_CHECK_HEADERS([ \
+       limits.h \
+       stddef.h \
+       sys/param.h \
+       sys/time.h \
+])
 
 # Find arch type
-case $host_cpu in
-       i386) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;;
-       i486) ARCHTYPE="x86";;
-       i586) ARCHTYPE="x86";;
-       i686) ARCHTYPE="x86";;
-       x86_64) ARCHTYPE="x86";;
-       powerpc) ARCHTYPE="ppc" ;;
-       ppc64) ARCHTYPE="ppc" ;;
-       powerpc64) ARCHTYPE="ppc" ;;
-       ppc) ARCHTYPE="ppc" ;;
-       s390) ARCHTYPE="s390" ;;
-       s390x) ARCHTYPE="s390" ;;
-       sparc64) ARCHTYPE="sparc64" ;;
-       alpha*) ARCHTYPE="alpha" ;;
-       ia64) ARCHTYPE="gcc" ;;
-       arm*) ARCHTYPE="arm" ;;
-       *) ARCHTYPE="unknown";;
-esac
-
-if test "x$ARCHTYPE" = "xarm" ; then
-AC_MSG_CHECKING([checking for dmb instruction])
-AC_TRY_COMPILE(
-[
-],
-[
-asm volatile("dmb":::"memory");
-],
-[
-       AC_MSG_RESULT([yes])
-       AC_DEFINE([CONFIG_RCU_ARM_HAVE_DMB], [1])
-]
-,
-[
-       AC_MSG_RESULT([no])
-]
+AS_CASE([$host_cpu],
+       [k1om], [ARCHTYPE="x86"],
+       [i386], [ARCHTYPE="x86" && SUBARCHTYPE="x86compat"],
+       [i486], [ARCHTYPE="x86"],
+       [i586], [ARCHTYPE="x86"],
+       [i686], [ARCHTYPE="x86"],
+       [amd64], [ARCHTYPE="x86"],
+       [x86_64], [ARCHTYPE="x86"],
+       [powerpc], [ARCHTYPE="ppc"],
+       [ppc64], [ARCHTYPE="ppc"],
+       [powerpc64], [ARCHTYPE="ppc"],
+       [powerpc64le], [ARCHTYPE="ppc"],
+       [ppc], [ARCHTYPE="ppc"],
+       [s390], [ARCHTYPE="s390"],
+       [s390x], [ARCHTYPE="s390"],
+       [sparc], [ARCHTYPE="sparc64"],
+       [sparc64], [ARCHTYPE="sparc64"],
+       [alpha*], [ARCHTYPE="alpha"],
+       [ia64], [ARCHTYPE="ia64"],
+       [arm*], [ARCHTYPE="arm"],
+       [aarch64*], [ARCHTYPE="aarch64"],
+       [mips*], [ARCHTYPE="mips"],
+       [nios2*], [ARCHTYPE="nios2"],
+       [tile*], [ARCHTYPE="tile"],
+       [hppa*], [ARCHTYPE="hppa"],
+       [ARCHTYPE="unknown"]
+)
+
+AS_CASE([$host],[*-*-linux-androideabi],
+       [AM_CONDITIONAL(TARGET_IS_ANDROID, true)],
+       [AM_CONDITIONAL(TARGET_IS_ANDROID, false)]
+)
+
+AS_CASE([$host],[*-cygwin*],
+       [AM_CONDITIONAL(USE_CYGWIN, true)],
+       [AM_CONDITIONAL(USE_CYGWIN, false)]
 )
-fi
-
-UATOMICSRC=urcu/uatomic_arch_$ARCHTYPE.h
-ARCHSRC=urcu/arch_$ARCHTYPE.h
-if test "x$ARCHTYPE" != xx86 -a "x$ARCHTYPE" != xppc; then
-       APISRC=tests/api_gcc.h
-else
-       APISRC=tests/api_$ARCHTYPE.h
-fi
-if test "$ARCHTYPE" == "armv7l"; then
-       CFLAGS="-mcpu=cortex-a9 -mtune=cortex-a9 -O"
-fi
 
 AC_SUBST(ARCHTYPE)
 AC_SUBST(SUBARCHTYPE)
 
-[
-#if test "x$ARCHTYPE" = "xx86" -a "x$host_cpu" != "xi386" -a "x$host_cpu" != "xi486" -a "x$host_cpu" != "xi586"; then
-#For now, using lock; addl compatibility mode even for i686, because the
-#Pentium III is seen as a i686, but lacks mfence instruction.
-#Only using fence for x86_64.
-if test "x$ARCHTYPE" = "xx86" -a "x$host_cpu" != "xi386" -a "x$host_cpu" != "xi486" -a "x$host_cpu" != "xi586" -a "x$host_cpu" != "xi686"; then
-]
-       AC_DEFINE([CONFIG_RCU_HAVE_FENCE], [1])
-[
-fi
-]
-
-AC_MSG_CHECKING([sys_futex()])
-AC_TRY_COMPILE(
-[
-#include <sys/syscall.h>
-],
-[
-#ifndef __NR_futex
-#error "futexes not available"
-#endif
-],
-[
+UATOMICSRC=urcu/uatomic/$ARCHTYPE.h
+ARCHSRC=urcu/arch/$ARCHTYPE.h
+
+AS_IF([test "x$SUBARCHTYPE" = xx86compat],[
+       AC_DEFINE([CONFIG_RCU_COMPAT_ARCH], [1])
+])
+
+AS_IF([test "$host_cpu" = "armv7l"],[
+       CFLAGS="$CFLAGS -mcpu=cortex-a9 -mtune=cortex-a9 -O1"
+])
+
+# ARM-specific checks
+AS_IF([test "x$ARCHTYPE" = "xarm"],[
+       AC_MSG_CHECKING([for dmb instruction])
+       AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+                               int main()
+                               {
+                                       asm volatile("dmb":::"memory");
+                                       return 0;
+                               }
+               ]])
+       ],[
+               AC_MSG_RESULT([yes])
+               AC_DEFINE([CONFIG_RCU_ARM_HAVE_DMB], [1])
+       ],[
+               AC_MSG_RESULT([no])
+       ])
+])
+
+# Tile-specific checks
+AS_IF([echo "$host_cpu" | grep "^tile"],[
+       AC_MSG_CHECKING([for Tile architecture type])
+       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+                               #ifndef __tilegx__
+                               #error
+                               #endif
+               ]])
+       ],[
+               AC_MSG_RESULT([ok])
+       ],[
+               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.])
+       ])
+])
+
+# x86-specific checks
+AS_IF([test "x$ARCHTYPE" = "xx86"],[
+       AC_MSG_CHECKING([if architecture really supports the mfence instruction])
+       #For now, using lock; addl compatibility mode even for i686, because the
+       #Pentium III is seen as a i686, but lacks mfence instruction.
+       #Only using fence for x86_64.
+       #
+       #k1om is the name for the Intel MIC family (Xeon Phi). It is an x86_64
+       #variant but lacks fence instructions.
+       AS_IF([test "x$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"],[
+               AC_MSG_RESULT([yes])
+               AC_DEFINE([CONFIG_RCU_HAVE_FENCE], [1])
+       ],[
+               AC_MSG_RESULT([no])
+       ])
+])
+
+# Check if sys_futex() is available
+AC_MSG_CHECKING([for sys_futex()])
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+               #include <sys/syscall.h>
+               #ifndef __NR_futex
+               #error "futexes not available"
+               #endif
+       ]])
+],[
        AC_MSG_RESULT([yes])
        AC_DEFINE([CONFIG_RCU_HAVE_FUTEX], [1])
        compat_futex_test=0
-]
-,
-[
+],[
        AC_MSG_RESULT([no])
        compat_futex_test=1
-]
+])
+
+# Search for clock_gettime
+AC_SEARCH_LIBS([clock_gettime], [rt], [
+       AC_DEFINE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [1])
+], [])
+
+# Check for pthread
+AC_CHECK_LIB([pthread], [pthread_create],
+       [AM_CONDITIONAL(LIBC_INCLUDES_PTHREAD, false)],
+       [AC_CHECK_LIB([c], [pthread_create],
+               [AM_CONDITIONAL(LIBC_INCLUDES_PTHREAD, true)],
+               [AC_MSG_ERROR([Cannot find libpthread. Use [LDFLAGS]=-Ldir to specify its location.])]
+       )]
 )
 
-AM_CONDITIONAL([COMPAT_FUTEX], [ test "x$compat_futex_test" = "x1" ])
+AM_CONDITIONAL([COMPAT_FUTEX], [test "x$compat_futex_test" = "x1"])
+AM_CONDITIONAL([COMPAT_ARCH], [test "x$SUBARCHTYPE" = "xx86compat"])
+AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"])
 
-AM_CONDITIONAL([COMPAT_ARCH], [test "x$SUBARCHTYPE" = xx86compat ])
+# smp-support configure option
+AC_ARG_ENABLE([smp-support], 
+       AS_HELP_STRING([--disable-smp-support], [Disable SMP support. Warning: only use this on uniprocessor systems. [default=enabled]]),
+       [def_smp_support=$enableval],
+       [def_smp_support="yes"])
+AS_IF([test "x$def_smp_support" = "xyes"], [AC_DEFINE([CONFIG_RCU_SMP], [1])])
 
-[
-if test "x$SUBARCHTYPE" = xx86compat; then
-]
-       AC_DEFINE([CONFIG_RCU_COMPAT_ARCH], [1])
-[
-fi
-]
-
-AC_ARG_ENABLE([smp-support], [  --disable-smp-support   Disable SMP support. Warning: only use this
-                          on uniprocessor systems. [[default=enabled]]], [def_smp_support=$enableval], [def_smp_support="yes"])
-
-[
-if test "$def_smp_support" = "no"; then
-       echo "SMP support disabled."
-else
-]
-       AC_DEFINE([CONFIG_RCU_SMP], [1])
-[
-       echo "SMP support enabled."
-fi
-]
 
 # From the sched_setaffinity(2)'s man page:
 # ~~~~
@@ -176,75 +283,125 @@ fi
 #  int sched_setaffinity (pid_t __pid, const cpu_set_t *__mask);
 # ~~~~
 
-dnl Since we define _GNU_SOURCE in the sources, must do so too in the
-dnl autoconf tests, as defining _GNU_SOURCE or not exposes
-dnl sched_setaffinity bits differently.
+# Since we define _GNU_SOURCE in the sources, must do so too in the
+# autoconf tests, as defining _GNU_SOURCE or not exposes
+# sched_setaffinity bits differently.
 saved_CFLAGS=$CFLAGS
 CFLAGS="$CFLAGS -D_GNU_SOURCE"
 
+AC_CHECK_TYPES([cpu_set_t],
+       [have_cpu_set_t="yes"],
+       [have_cpu_set_t="no"],
+       [#include <sched.h>])
+
+# Confirm that we have CPU_ZERO, and it actually works.
+AC_MSG_CHECKING([whether CPU_ZERO works])
+AH_TEMPLATE([HAVE_CPU_ZERO], [Defined to 1 if we have CPU_ZERO and it works])
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+               #define _GNU_SOURCE
+               #include <sched.h>
+               int main()
+               {
+                       cpu_set_t foo; CPU_ZERO(&foo);
+                       return 0;
+               }
+       ]])
+],[
+       AC_DEFINE(HAVE_CPU_ZERO, 1)
+       AC_MSG_RESULT([yes])
+],[
+       AC_MSG_RESULT([no])
+])
+
+# Confirm that we have CPU_SET, and it actually works.
+AC_MSG_CHECKING([whether CPU_SET works])
+AH_TEMPLATE([HAVE_CPU_SET], [Defined to 1 if we have CPU_SET and it works])
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+               #define _GNU_SOURCE
+               #include <sched.h>
+               int main()
+               {
+                       cpu_set_t foo, mask; CPU_SET(0, &foo);
+                       return 0;
+               }
+       ]])
+],[
+       AC_DEFINE(HAVE_CPU_SET, 1)
+       AC_MSG_RESULT([yes])
+],[
+       AC_MSG_RESULT([no])
+])
+
 # First check if the function is available at all.
-AC_CHECK_FUNCS(
-  [sched_setaffinity],
-  [ # Okay, we have it.  Check if also have cpu_set_t.  If we don't,
-    # then we have the first version using unsigned long, and no
-    # CPU_ZERO, etc. macros.  If we do have cpu_set_t, we may have the
-    # version with 2 or 3 arguments.  In that case, CPU_ZERO, etc.,
-    # should also be present, but we confirm nonetheless.
-
-    AC_CHECK_TYPES(
-      [cpu_set_t],
-      [ # We do have it.  Confirm that we have CPU_ZERO, and it actually works.
-       AC_MSG_CHECKING([whether CPU_ZERO works])
-       AH_TEMPLATE([HAVE_CPU_ZERO],
-                   [Define to 1 if we have CPU_ZERO and if it works])
-       AC_COMPILE_IFELSE(
-         [AC_LANG_PROGRAM(
-           [#define _GNU_SOURCE
-           #include <sched.h>],
-           [cpu_set_t foo; CPU_ZERO (&foo);])
-         ],
-         [ # Works!
-           AC_DEFINE(HAVE_CPU_ZERO, 1)
-           AC_MSG_RESULT([yes])
-         ],
-         [AC_MSG_RESULT([no])]
-       )
-
-       # Check how many arguments does sched_setaffinity take.
-       # Should be 3 or 2.
-       AC_MSG_CHECKING([how many arguments sched_setaffinity takes])
-       AC_COMPILE_IFELSE(
-         [AC_LANG_PROGRAM(
-           [#include <sched.h>],
-           [cpu_set_t foo; sched_setaffinity (0, sizeof (foo), &foo);])
-         ],
-         [sched_set_affinity_args=3],
-         [sched_set_affinity_args=2])
-       AC_DEFINE_UNQUOTED(SCHED_SETAFFINITY_ARGS, $sched_set_affinity_args,
-        [Define to sched_setaffinity's number of arguments.])
-       AC_MSG_RESULT([$sched_set_affinity_args])
-      ],
-      [ # No cpu_set_t, always 3 args.
-       AC_DEFINE(SCHED_SETAFFINITY_ARGS, 3) ],
-      [#include <sched.h>]
-    )
-  ]
-)
+AC_CHECK_FUNCS([sched_setaffinity],[
+       # Okay, we have it.  Check if also have cpu_set_t.  If we don't,
+       # then we have the first version using unsigned long, and no
+       # CPU_ZERO, etc. macros.  If we do have cpu_set_t, we may have the
+       # version with 2 or 3 arguments.  In that case, CPU_ZERO, etc.,
+       # should also be present, but we confirm nonetheless.
+
+       AS_IF([test "x$have_cpu_set_t" = "xyes"], [
+               # We do have it.
+               # Check how many arguments does sched_setaffinity take.
+               # Should be 3 or 2.
+               AC_MSG_CHECKING([how many arguments sched_setaffinity takes])
+               AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+                               #include <sched.h>
+                               int main()
+                               {
+                                       cpu_set_t foo;
+                                       sched_setaffinity(0, sizeof (foo), &foo);
+                                       return 0;
+                               }
+                       ]])
+               ],
+               [sched_set_affinity_args=3],
+               [sched_set_affinity_args=2])
+               AC_DEFINE_UNQUOTED(SCHED_SETAFFINITY_ARGS,
+                       $sched_set_affinity_args,
+                       [Defined to sched_setaffinity's number of arguments.])
+               AC_MSG_RESULT([$sched_set_affinity_args])
+       ],[
+               # No cpu_set_t, always 3 args.
+               AC_DEFINE(SCHED_SETAFFINITY_ARGS, 3)
+       ])
+])
 
 CFLAGS=$saved_CFLAGS
 
 AC_CONFIG_LINKS([
        urcu/arch.h:$ARCHSRC
-       urcu/uatomic_arch.h:$UATOMICSRC
-       tests/api.h:$APISRC
+       urcu/uatomic.h:$UATOMICSRC
 ])
 AC_CONFIG_FILES([
        Makefile
+       doc/Makefile
+       doc/examples/Makefile
        tests/Makefile
+       tests/common/Makefile
+       tests/unit/Makefile
+       tests/benchmark/Makefile
+       tests/regression/Makefile
+       tests/regression/regression_tests
+       tests/utils/Makefile
        liburcu.pc
        liburcu-bp.pc
+       liburcu-cds.pc
        liburcu-qsbr.pc
        liburcu-mb.pc
        liburcu-signal.pc
 ])
 AC_OUTPUT
+
+# Report on selected configure options
+AS_IF([test "x$def_smp_support" = "xyes"],[
+       AS_ECHO("SMP support enabled.")
+],[
+       AS_ECHO("SMP support disabled.")
+])
+
+AS_IF([test "x$def_tls_detect" = "x"],[
+       AS_ECHO("Thread Local Storage (TLS): pthread_getspecific().")
+],[
+       AS_ECHO("Thread Local Storage (TLS): $def_tls_detect.")
+])
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