update version to 0.5.4

[urcu.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 1ce19d0c51b6fbc56ec0a019e3c60cecb2899d57..187cf43696a609701edcaef65931998e348df6a5 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 
-AC_INIT([userspace-rcu], [0.4.1], [mathieu dot desnoyers at efficios dot com])
+AC_INIT([userspace-rcu], [0.5.4], [mathieu dot desnoyers at efficios dot com])
 AC_CONFIG_AUX_DIR([config])
 AC_CANONICAL_TARGET
 AC_CANONICAL_HOST
@@ -20,6 +20,7 @@ AH_TEMPLATE([CONFIG_RCU_HAVE_FENCE], [Defined when on a system that has memory f
 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_ARM_HAVE_DMB], [Use the dmb instruction is available for use on ARM.])
 
 # Checks for programs.
 AC_PROG_CC
@@ -51,12 +52,30 @@ case $host_cpu in
        s390x) ARCHTYPE="s390" ;;
        sparc64) ARCHTYPE="sparc64" ;;
        alpha*) ARCHTYPE="alpha" ;;
+       ia64) ARCHTYPE="gcc" ;;
+       arm*) ARCHTYPE="arm" ;;
        *) ARCHTYPE="unknown";;
 esac
 
-if test "$ARCHTYPE" = "unknown"; then
-       AC_MSG_ERROR([Unable to detect the architecture.])
+if test "x$ARCHTYPE" = "xarm" ; then
+AC_MSG_CHECKING([checking for dmb instruction])
+AC_TRY_COMPILE(
+[
+],
+[
+asm volatile("dmb":::"memory");
+],
+[
+       AC_MSG_RESULT([yes])
+       AC_DEFINE([CONFIG_ARM_HAVE_DMB], [1])
+]
+,
+[
+       AC_MSG_RESULT([no])
+]
+)
 fi
+
 UATOMICSRC=urcu/uatomic_arch_$ARCHTYPE.h
 ARCHSRC=urcu/arch_$ARCHTYPE.h
 if test "x$ARCHTYPE" != xx86 -a "x$ARCHTYPE" != xppc; then
@@ -64,6 +83,9 @@ if test "x$ARCHTYPE" != xx86 -a "x$ARCHTYPE" != xppc; then
 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)