# Process this file with autoconf to produce a configure script.
-AC_INIT([userspace-rcu], [0.4.4], [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
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.])
# Checks for programs.
AC_PROG_CC
# Checks for library functions.
AC_FUNC_MALLOC
AC_FUNC_MMAP
-AC_CHECK_FUNCS([bzero gettimeofday munmap strtoul])
+AC_CHECK_FUNCS([bzero gettimeofday munmap sched_getcpu strtoul sysconf])
# Find arch type
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
- UATOMICSRC=urcu/uatomic_arch_$ARCHTYPE.h
- ARCHSRC=urcu/arch_$ARCHTYPE.h
-else
- UATOMICSRC=urcu/uatomic_generic.h
- ARCHSRC=urcu/arch_generic.h
+if test "x$ARCHTYPE" = "xarm" ; then
+AC_MSG_CHECKING([checking for dmb instruction])
+AC_TRY_COMPILE(
+[
+],
+[
+asm volatile("dmb":::"memory");
+],
+[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE([CONFIG_RCU_ARM_HAVE_DMB], [1])
+]
+,
+[
+ AC_MSG_RESULT([no])
+]
+)
fi
+
+UATOMICSRC=urcu/uatomic_arch_$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)
AC_CONFIG_FILES([
Makefile
tests/Makefile
+ liburcu.pc
+ liburcu-bp.pc
+ liburcu-qsbr.pc
+ liburcu-mb.pc
+ liburcu-signal.pc
])
AC_OUTPUT