From: Mark Andrews <marka@isc.org>
Date: Fri, 16 Oct 2009 04:27:07 +0000 (+0000)
Subject: 2714.   [port]          aix/powerpc: 'asm("ics");' needs non standard assembler
X-Git-Tag: v9.5.2-P1~1^5~14
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=67b97c83c178b405e6dcf3a74dd59a6ab2988bc6;p=thirdparty%2Fbind9.git

2714.   [port]          aix/powerpc: 'asm("ics");' needs non standard assembler
                        flags.
---

diff --git a/CHANGES b/CHANGES
index 9e78f90f53f..580b394d96d 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+2714.	[port]		aix/powerpc: 'asm("ics");' needs non standard assembler
+			flags.
+
 2713.	[bug]		powerpc: atomic operations missing asm("ics") /
 			__isync() calls.
 
diff --git a/configure.in b/configure.in
index 5d39005ad68..17f6cb9855c 100644
--- a/configure.in
+++ b/configure.in
@@ -18,7 +18,7 @@ AC_DIVERT_PUSH(1)dnl
 esyscmd([sed "s/^/# /" COPYRIGHT])dnl
 AC_DIVERT_POP()dnl
 
-AC_REVISION($Revision: 1.432.60.35 $)
+AC_REVISION($Revision: 1.432.60.36 $)
 
 AC_INIT(lib/dns/name.c)
 AC_PREREQ(2.59)
@@ -2228,7 +2228,37 @@ AC_ARG_ENABLE(atomic,
 			enable_atomic="autodetect")
 case "$enable_atomic" in
 	yes|''|autodetect)
-		use_atomic=yes
+		case "$host" in
+		powerpc-ibm-aix*)
+			if test "X$GCC" = "Xyes"; then
+				AC_MSG_CHECKING([if asm("isc"); works])
+				AC_TRY_COMPILE(,[
+				main() { asm("ics"); exit(0); }
+				],
+				[AC_MSG_RESULT(yes)
+				 use_atomic=yes],
+				[
+				saved_cflags="$CFLAGS"
+				CFLAGS="$CFLAGS -Wa,-many"
+				AC_TRY_RUN([
+				main() { asm("ics"); exit(0); }
+				],
+				[AC_MSG_RESULT([yes, required -Wa,-many])
+				 use_atomic=yes],
+				[AC_MSG_RESULT([no, use_atomic disabled])
+				 CFLAGS="$saved_cflags"
+				 use_atomic=no],
+				[AC_MSG_RESULT([cross compile, assume yes])
+				 CFLAGS="$saved_cflags"
+				 use_atomic=yes])
+				]
+				)
+			fi
+			;;
+		*)
+			use_atomic=yes
+			;;
+		esac
 		;;
 	no)
 		use_atomic=no