X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=configure.ac;h=5aa343353ae806de28c22b024a6961fd2e73ab88;hp=0cb4fa46aabba7109382275be53e7142ff09adaa;hb=9a79c612003362a97217613b7906a4782977d373;hpb=8afbdefc6a045ed243ee186a64254888e381a9bb diff --git a/configure.ac b/configure.ac index 0cb4fa4..5aa3433 100644 --- a/configure.ac +++ b/configure.ac @@ -1,25 +1,22 @@ -# -*- Autoconf -*- -# Process this file with autoconf to produce a configure script. - - -AC_INIT([userspace-rcu],[0.7.2],[mathieu dot desnoyers at efficios dot com]) +AC_PREREQ(2.59) +AC_INIT([userspace-rcu],[0.10.0-pre],[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], [1:0:0]) +AC_SUBST([URCU_LIBRARY_VERSION], [5:0:1]) +AC_CONFIG_HEADERS([include/config.h include/urcu/config.h]) AC_CONFIG_AUX_DIR([config]) -AC_CONFIG_MACRO_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])]) - -m4_include([config/ax_tls.m4]) -AC_CONFIG_SRCDIR([urcu.h]) +AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip nostdinc]) +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])]) 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.]) @@ -27,26 +24,105 @@ AH_TEMPLATE([CONFIG_RCU_HAVE_FUTEX], [Defined when on a system with futex suppor 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.]) - -AX_TLS([AC_DEFINE_UNQUOTED([CONFIG_RCU_TLS], $ac_cv_tls)], []) +AH_TEMPLATE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [clock_gettime() is detected.]) +AH_TEMPLATE([CONFIG_RCU_FORCE_SYS_MEMBARRIER], [Require the operating system to support the membarrier system call for default and bulletproof flavors.]) +AH_TEMPLATE([CONFIG_RCU_DEBUG], [Enable internal debugging self-checks. Introduce performance penalty.]) + +# Allow requiring the operating system to support the membarrier system +# call. Applies to default and bulletproof flavors. +AC_ARG_ENABLE([sys-membarrier-fallback], + AS_HELP_STRING([--disable-sys-membarrier-fallback], [Abort if sys-membarrier is needed but not available rather than using a fallback.]), + [def_sys_membarrier_fallback=$enableval], + [def_sys_membarrier_fallback="yes"]) +AS_IF([test "x$def_sys_membarrier_fallback" != "xyes"], [AC_DEFINE([CONFIG_RCU_FORCE_SYS_MEMBARRIER], [1])]) + +# Allow overriding storage used for TLS variables. +AC_ARG_ENABLE([compiler-tls], + AS_HELP_STRING([--disable-compiler-tls], [Use pthread_getspecific() to emulate Thread Local Storage (TLS) variables.]), + [def_compiler_tls=$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], $def_tls_detect)]) + +# Checks for C compiler +AC_USE_SYSTEM_EXTENSIONS +AC_PROG_CC +AC_PROG_CC_STDC # Checks for programs. -AC_PROG_CC +AC_PROG_AWK AC_PROG_MAKE_SET +AC_CHECK_PROGS(NPROC, [nproc gnproc]) +AC_CHECK_PROGS(GETCONF, [getconf]) +AS_IF([test "x$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$ax_cv___attribute__" = "xyes"], + [:], + [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])]) + +AX_PTHREAD(,[AC_MSG_ERROR([Could not configure pthreads support])]) # Checks for library functions. -AC_FUNC_MALLOC AC_FUNC_MMAP -AC_CHECK_FUNCS([bzero gettimeofday munmap sched_getcpu strtoul sysconf]) +AC_FUNC_FORK +AC_CHECK_FUNCS([ \ + atexit \ + getcpuid \ + gettid \ + gettimeofday \ + memeset \ + memset \ + munmap \ + rand_r \ + sched_getcpu \ + strerror \ + strtoul \ + sysconf \ +]) + +# AC_FUNC_MALLOC causes problems when cross-compiling. +#AC_FUNC_MALLOC + +# Check for headers +AC_HEADER_STDBOOL +AC_CHECK_HEADERS([ \ + limits.h \ + stddef.h \ + sys/param.h \ + sys/time.h \ +]) # Find arch type AS_CASE([$host_cpu], + [k1om], [ARCHTYPE="x86"], [i386], [ARCHTYPE="x86" && SUBARCHTYPE="x86compat"], [i486], [ARCHTYPE="x86"], [i586], [ARCHTYPE="x86"], @@ -56,28 +132,40 @@ AS_CASE([$host_cpu], [powerpc], [ARCHTYPE="ppc"], [ppc64], [ARCHTYPE="ppc"], [powerpc64], [ARCHTYPE="ppc"], + [powerpc64le], [ARCHTYPE="ppc"], [ppc], [ARCHTYPE="ppc"], [s390], [ARCHTYPE="s390"], [s390x], [ARCHTYPE="s390"], + [sparc], [ARCHTYPE="sparc64"], [sparc64], [ARCHTYPE="sparc64"], [alpha*], [ARCHTYPE="alpha"], - [ia64], [ARCHTYPE="gcc"], + [ia64], [ARCHTYPE="ia64"], [arm*], [ARCHTYPE="arm"], + [aarch64*], [ARCHTYPE="aarch64"], + [mips*], [ARCHTYPE="mips"], + [nios2*], [ARCHTYPE="nios2"], + [tile*], [ARCHTYPE="tile"], + [hppa*], [ARCHTYPE="hppa"], [ARCHTYPE="unknown"] ) +AS_CASE([$host],[*-cygwin*], + [AM_CONDITIONAL(USE_CYGWIN, true)], + [AM_CONDITIONAL(USE_CYGWIN, false)] +) + AC_SUBST(ARCHTYPE) AC_SUBST(SUBARCHTYPE) -UATOMICSRC=urcu/uatomic/$ARCHTYPE.h -ARCHSRC=urcu/arch/$ARCHTYPE.h +UATOMICSRC=include/urcu/uatomic/$ARCHTYPE.h +ARCHSRC=include/urcu/arch/$ARCHTYPE.h AS_IF([test "x$SUBARCHTYPE" = xx86compat],[ AC_DEFINE([CONFIG_RCU_COMPAT_ARCH], [1]) ]) AS_IF([test "$host_cpu" = "armv7l"],[ - CFLAGS="$CFLAGS -mcpu=cortex-a9 -mtune=cortex-a9 -O1" + AM_CFLAGS="$AM_CFLAGS -mcpu=cortex-a9 -mtune=cortex-a9 -O1" ]) # ARM-specific checks @@ -98,17 +186,37 @@ AS_IF([test "x$ARCHTYPE" = "xarm"],[ ]) ]) +# Tile-specific checks +AS_IF([echo "$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$ARCHTYPE" = "xx86"],[ AC_MSG_CHECKING([if architecture really supports the mfence instruction]) #For now, using lock; addl compatibility mode even for i686, because the #Pentium III is seen as a i686, but lacks mfence instruction. #Only using fence for x86_64. - AS_IF([test "x$host_cpu" != "xi386" -a "x$host_cpu" != "xi486" -a "x$host_cpu" != "xi586" -a "x$host_cpu" != "xi686"],[ + # + #k1om is the name for the Intel MIC family (Xeon Phi). It is an x86_64 + #variant but lacks fence instructions. + AS_IF([test "x$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$host_cpu" != "xk1om"],[ AC_MSG_RESULT([yes]) AC_DEFINE([CONFIG_RCU_HAVE_FENCE], [1]) + config_rcu_have_fence=yes ],[ AC_MSG_RESULT([no]) + config_rcu_have_fence=no ]) ]) @@ -129,8 +237,15 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ compat_futex_test=1 ]) +# Search for clock_gettime +AC_SEARCH_LIBS([clock_gettime], [rt], [ + AC_DEFINE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [1]) + config_rcu_have_clock_gettime=yes +], []) + AM_CONDITIONAL([COMPAT_FUTEX], [test "x$compat_futex_test" = "x1"]) AM_CONDITIONAL([COMPAT_ARCH], [test "x$SUBARCHTYPE" = "xx86compat"]) +AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"]) # smp-support configure option AC_ARG_ENABLE([smp-support], @@ -139,6 +254,13 @@ AC_ARG_ENABLE([smp-support], [def_smp_support="yes"]) AS_IF([test "x$def_smp_support" = "xyes"], [AC_DEFINE([CONFIG_RCU_SMP], [1])]) +# RCU debugging option +AC_ARG_ENABLE([rcu-debug], + AS_HELP_STRING([--enable-rcu-debug], [Enable internal debugging + self-checks. Introduce performance penalty.])) +AS_IF([test "x$enable_rcu_debug" = "xyes"], [ + AC_DEFINE([CONFIG_RCU_DEBUG], [1]) +]) # From the sched_setaffinity(2)'s man page: # ~~~~ @@ -166,11 +288,46 @@ AS_IF([test "x$def_smp_support" = "xyes"], [AC_DEFINE([CONFIG_RCU_SMP], [1])]) # int sched_setaffinity (pid_t __pid, const cpu_set_t *__mask); # ~~~~ -# Since we define _GNU_SOURCE in the sources, must do so too in the -# autoconf tests, as defining _GNU_SOURCE or not exposes -# sched_setaffinity bits differently. -saved_CFLAGS=$CFLAGS -CFLAGS="$CFLAGS -D_GNU_SOURCE" +AC_CHECK_TYPES([cpu_set_t], + [have_cpu_set_t="yes"], + [have_cpu_set_t="no"], + [#include ]) + +# Confirm that we have CPU_ZERO, and it actually works. +AC_MSG_CHECKING([whether CPU_ZERO works]) +AH_TEMPLATE([HAVE_CPU_ZERO], [Defined to 1 if we have CPU_ZERO and it works]) +AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ + #include + int main() + { + cpu_set_t foo; CPU_ZERO(&foo); + return 0; + } + ]]) +],[ + AC_DEFINE(HAVE_CPU_ZERO, 1) + AC_MSG_RESULT([yes]) +],[ + AC_MSG_RESULT([no]) +]) + +# Confirm that we have CPU_SET, and it actually works. +AC_MSG_CHECKING([whether CPU_SET works]) +AH_TEMPLATE([HAVE_CPU_SET], [Defined to 1 if we have CPU_SET and it works]) +AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ + #include + int main() + { + cpu_set_t foo, mask; CPU_SET(0, &foo); + return 0; + } + ]]) +],[ + AC_DEFINE(HAVE_CPU_SET, 1) + AC_MSG_RESULT([yes]) +],[ + AC_MSG_RESULT([no]) +]) # First check if the function is available at all. AC_CHECK_FUNCS([sched_setaffinity],[ @@ -180,27 +337,8 @@ AC_CHECK_FUNCS([sched_setaffinity],[ # version with 2 or 3 arguments. In that case, CPU_ZERO, etc., # should also be present, but we confirm nonetheless. - AC_CHECK_TYPES([cpu_set_t],[ - # We do have it. Confirm that we have CPU_ZERO, and it actually works. - AC_MSG_CHECKING([whether CPU_ZERO works]) - AH_TEMPLATE([HAVE_CPU_ZERO], [Defined to 1 if we have CPU_ZERO and it works]) - AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ - #define _GNU_SOURCE - #include - int main() - { - cpu_set_t foo; CPU_ZERO (&foo); - return 0; - } - ]]) - ],[ - # Works! - AC_DEFINE(HAVE_CPU_ZERO, 1) - AC_MSG_RESULT([yes]) - ],[ - AC_MSG_RESULT([no]) - ]) - + AS_IF([test "x$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]) @@ -209,45 +347,104 @@ AC_CHECK_FUNCS([sched_setaffinity],[ int main() { cpu_set_t foo; - sched_setaffinity (0, sizeof (foo), &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, + 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) - ], - [#include ]) + ]) ]) -CFLAGS=$saved_CFLAGS +AM_CPPFLAGS="-include config.h" +AC_SUBST(AM_CPPFLAGS) + +AC_SUBST(AM_CFLAGS) AC_CONFIG_LINKS([ - urcu/arch.h:$ARCHSRC - urcu/uatomic.h:$UATOMICSRC + include/urcu/arch.h:$ARCHSRC + include/urcu/uatomic.h:$UATOMICSRC ]) AC_CONFIG_FILES([ Makefile doc/Makefile + doc/examples/Makefile + include/Makefile + src/Makefile tests/Makefile - liburcu.pc - liburcu-bp.pc - liburcu-cds.pc - liburcu-qsbr.pc - liburcu-mb.pc - liburcu-signal.pc + tests/common/Makefile + tests/unit/Makefile + tests/benchmark/Makefile + tests/regression/Makefile + tests/regression/regression_tests + tests/utils/Makefile + src/liburcu.pc + src/liburcu-bp.pc + src/liburcu-cds.pc + src/liburcu-qsbr.pc + src/liburcu-mb.pc + src/liburcu-signal.pc ]) AC_OUTPUT -# Report on selected configure options -AS_IF([test "x$def_smp_support" = "xyes"],[ - AS_ECHO("SMP support enabled.") -],[ - AS_ECHO("SMP support disabled.") -]) +# +# Mini-report on what will be built. +# + +PPRINT_INIT +PPRINT_SET_INDENT(1) +PPRINT_SET_TS(38) + +AS_ECHO +AS_ECHO("${PPRINT_COLOR_BLDBLU}Userspace-RCU $PACKAGE_VERSION${PPRINT_COLOR_RST}") +AS_ECHO + +PPRINT_SUBTITLE([Features]) + +PPRINT_PROP_STRING([Target architecture], $host_cpu) + +# SMP support enabled/disabled +test "x$def_smp_support" = "xyes" && value=1 || value=0 +PPRINT_PROP_BOOL([SMP support], $value) + +# Memory fence support available +test "x$config_rcu_have_fence" = "xyes" && value=1 || value=0 +PPRINT_PROP_BOOL([Memory fence instructions], $value) + +# Futex support available +test "x$compat_futex_test" = "x0" && value=1 || value=0 +PPRINT_PROP_BOOL([Futex support], $value) + +# TLS +test "x$def_tls_detect" = "x" && value="pthread_getspecific()" || value="$def_tls_detect" +PPRINT_PROP_STRING([Thread Local Storage (TLS)], [$value]) + +# clock_gettime() available +test "x$config_rcu_have_clock_gettime" = "xyes" && value=1 || value=0 +PPRINT_PROP_BOOL([clock_gettime()], $value) + +# Require membarrier +test "x$def_sys_membarrier_fallback" != "xyes" && value=1 || value=0 +PPRINT_PROP_BOOL([Require membarrier], $value) + +# RCU debug enabled/disabled +test "x$enable_rcu_debug" = "xyes" && value=1 || value=0 +PPRINT_PROP_BOOL([Internal debugging], $value) + +report_bindir="`eval eval echo $bindir`" +report_libdir="`eval eval echo $libdir`" + +# Print the bindir and libdir this `make install' will install into. +AS_ECHO +PPRINT_SUBTITLE([Install directories]) +PPRINT_PROP_STRING([Binaries], [$report_bindir]) +PPRINT_PROP_STRING([Libraries], [$report_libdir]) +