X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=configure.ac;h=8eec26951e47dce19691843c4b44807c531215a5;hp=ce06254ac7621417c9208511c4cf4a86c750e688;hb=2af1c19e6a553878fcb2a5106f050d5ed7ac0f54;hpb=6e464eba97cf74320fe4e2b8da6dbe5039582948 diff --git a/configure.ac b/configure.ac index ce06254..8eec269 100644 --- a/configure.ac +++ b/configure.ac @@ -1,147 +1,261 @@ -# -*- Autoconf -*- -# Process this file with autoconf to produce a configure script. - - -AC_INIT([userspace-rcu],[0.6.6],[mathieu dot desnoyers at efficios dot com]) +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], [1:0:0]) +AC_SUBST([URCU_LIBRARY_VERSION], [4:0:0]) +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.]) + +# 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$ax_cv___attribute__" = "xyes"], + [:], + [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])]) + +AX_PTHREAD(,[AC_MSG_ERROR([Could not configure pthreads support])]) +LIBS="$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 $host_cpu in - i386) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;; - i486) ARCHTYPE="x86";; - i586) ARCHTYPE="x86";; - i686) ARCHTYPE="x86";; - amd64) ARCHTYPE="x86";; - x86_64) ARCHTYPE="x86";; - powerpc) ARCHTYPE="ppc" ;; - ppc64) ARCHTYPE="ppc" ;; - powerpc64) ARCHTYPE="ppc" ;; - ppc) ARCHTYPE="ppc" ;; - s390) ARCHTYPE="s390" ;; - s390x) ARCHTYPE="s390" ;; - sparc64) ARCHTYPE="sparc64" ;; - alpha*) ARCHTYPE="alpha" ;; - ia64) ARCHTYPE="gcc" ;; - arm*) ARCHTYPE="arm" ;; - *) ARCHTYPE="unknown";; -esac - -if test "x$ARCHTYPE" = "xarm" ; then -AC_MSG_CHECKING([checking for dmb instruction]) -AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ -]], [[ -asm volatile("dmb":::"memory"); -]])],[ - AC_MSG_RESULT([yes]) - AC_DEFINE([CONFIG_RCU_ARM_HAVE_DMB], [1]) +AS_CASE([$host_cpu], + [k1om], [ARCHTYPE="x86"], + [i386], [ARCHTYPE="x86" && SUBARCHTYPE="x86compat"], + [i486], [ARCHTYPE="x86"], + [i586], [ARCHTYPE="x86"], + [i686], [ARCHTYPE="x86"], + [amd64], [ARCHTYPE="x86"], + [x86_64], [ARCHTYPE="x86"], + [powerpc], [ARCHTYPE="ppc"], + [ppc64], [ARCHTYPE="ppc"], + [powerpc64], [ARCHTYPE="ppc"], + [powerpc64le], [ARCHTYPE="ppc"], + [ppc], [ARCHTYPE="ppc"], + [s390], [ARCHTYPE="s390"], + [s390x], [ARCHTYPE="s390"], + [sparc], [ARCHTYPE="sparc64"], + [sparc64], [ARCHTYPE="sparc64"], + [alpha*], [ARCHTYPE="alpha"], + [ia64], [ARCHTYPE="ia64"], + [arm*], [ARCHTYPE="arm"], + [aarch64*], [ARCHTYPE="aarch64"], + [mips*], [ARCHTYPE="mips"], + [nios2*], [ARCHTYPE="nios2"], + [tile*], [ARCHTYPE="tile"], + [hppa*], [ARCHTYPE="hppa"], + [ARCHTYPE="unknown"] +) -],[ - AC_MSG_RESULT([no]) +AS_CASE([$host],[*-*-linux-androideabi], + [AM_CONDITIONAL(TARGET_IS_ANDROID, true)], + [AM_CONDITIONAL(TARGET_IS_ANDROID, false)] +) -]) -fi +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/$ARCHTYPE.h -if test "$ARCHTYPE" == "armv7l"; then - CFLAGS="-mcpu=cortex-a9 -mtune=cortex-a9 -O" -fi -AC_SUBST(ARCHTYPE) -AC_SUBST(SUBARCHTYPE) +AS_IF([test "x$SUBARCHTYPE" = xx86compat],[ + AC_DEFINE([CONFIG_RCU_COMPAT_ARCH], [1]) +]) + +AS_IF([test "$host_cpu" = "armv7l"],[ + CFLAGS="$CFLAGS -mcpu=cortex-a9 -mtune=cortex-a9 -O1" +]) -[ -#if test "x$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_COMPILE_IFELSE([AC_LANG_PROGRAM([[ -#include -]], [[ -#ifndef __NR_futex -#error "futexes not available" -#endif -]])],[ +# 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$host_cpu" != "xk1om"],[ + AC_MSG_RESULT([yes]) + AC_DEFINE([CONFIG_RCU_HAVE_FENCE], [1]) + ],[ + AC_MSG_RESULT([no]) + ]) +]) + +# Check if sys_futex() is available +AC_MSG_CHECKING([for sys_futex()]) +AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ + #include + #ifndef __NR_futex + #error "futexes not available" + #endif + ]]) +],[ AC_MSG_RESULT([yes]) AC_DEFINE([CONFIG_RCU_HAVE_FUTEX], [1]) compat_futex_test=0 - ],[ AC_MSG_RESULT([no]) compat_futex_test=1 - ]) -AM_CONDITIONAL([COMPAT_FUTEX], [ test "x$compat_futex_test" = "x1" ]) +# 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_ARCH], [test "x$SUBARCHTYPE" = xx86compat ]) +AM_CONDITIONAL([COMPAT_FUTEX], [test "x$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], + 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 "$def_smp_support" = "no"; then - echo "SMP support disabled." -else -] - AC_DEFINE([CONFIG_RCU_SMP], [1]) -[ - echo "SMP support enabled." -fi -] # From the sched_setaffinity(2)'s man page: # ~~~~ @@ -169,60 +283,89 @@ fi # int sched_setaffinity (pid_t __pid, const cpu_set_t *__mask); # ~~~~ -dnl Since we define _GNU_SOURCE in the sources, must do so too in the -dnl autoconf tests, as defining _GNU_SOURCE or not exposes -dnl sched_setaffinity bits differently. +# Since we define _GNU_SOURCE in the sources, must do so too in the +# autoconf tests, as defining _GNU_SOURCE or not exposes +# sched_setaffinity bits differently. saved_CFLAGS=$CFLAGS CFLAGS="$CFLAGS -D_GNU_SOURCE" +AC_CHECK_TYPES([cpu_set_t], + [have_cpu_set_t="yes"], + [have_cpu_set_t="no"], + [#include ]) + +# 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; + } + ]]) +],[ + 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 + 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 ], - [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 ], - [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 ] - ) - ] -) +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 + 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=$saved_CFLAGS @@ -232,12 +375,33 @@ AC_CONFIG_LINKS([ ]) AC_CONFIG_FILES([ Makefile + doc/Makefile + doc/examples/Makefile tests/Makefile - liburcu-cds.pc + tests/common/Makefile + tests/unit/Makefile + tests/benchmark/Makefile + tests/regression/Makefile + tests/regression/regression_tests + tests/utils/Makefile liburcu.pc liburcu-bp.pc + liburcu-cds.pc liburcu-qsbr.pc liburcu-mb.pc liburcu-signal.pc ]) AC_OUTPUT + +# Report on selected configure options +AS_IF([test "x$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.") +])