X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=configure.ac;h=f47742545d9240f3a6555f711fa862550366bb5b;hp=d1d43e645c3366e457c5d34d8475a21af5cc80e2;hb=e4ed2fa0b64d29cb1864d7eeab7779fd738d4fdf;hpb=ca91060ec7b0c64249c514ee4114753443ecd70f

diff --git a/configure.ac b/configure.ac
index d1d43e6..f477425 100644
--- a/configure.ac
+++ b/configure.ac
@@ -21,7 +21,6 @@ m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 AC_REQUIRE_AUX_FILE([tap-driver.sh])
 
 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_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.])
 AH_TEMPLATE([CONFIG_RCU_FORCE_SYS_MEMBARRIER], [Require the operating system to support the membarrier system call for default and bulletproof flavors.])
@@ -120,28 +119,6 @@ AS_CASE([$host],[*-cygwin*],
 	[AM_CONDITIONAL(USE_CYGWIN, false)]
 )
 
-AS_IF([test "$host_cpu" = "armv7l"],[
-	AM_CFLAGS="$AM_CFLAGS -mcpu=cortex-a9 -mtune=cortex-a9 -O1"
-])
-
-# ARM-specific checks
-AS_CASE([$host_cpu], [arm*], [
-	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])
-	])
-])
-
 # Search for clock_gettime
 AC_SEARCH_LIBS([clock_gettime], [rt], [
 	AC_DEFINE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [1])