Introduce TARGET_VXWORKS64 for VxWorks 64bit ports

2018-09-21  Olivier Hainque  <hainque@adacore.com>

	* config.gcc: Enforce def of TARGET_VXWORKS64 to 1 from
	triplet, similar to support for VxWorks7.
	* config/vxworks-dummy.h: Provide a default definition
	of TARGET_VXWORKS64 to 0.

From-SVN: r264474

gcc/ChangeLog

 2018-09-21  Olivier Hainque  <hainque@adacore.com>
 
+	* config.gcc: Enforce def of TARGET_VXWORKS64 to 1 from
+	triplet, similar to support for VxWorks7.
+	* config/vxworks-dummy.h: Provide a default definition
+	of TARGET_VXWORKS64 to 0.
+
+2018-09-21  Olivier Hainque  <hainque@adacore.com>
+
 	* config/vxworks.h (TARGET_VXWORKS7): Move default definition ...
 	* config/vxworks-dummy.h: here.
 

gcc/config.gcc

@@ -941,6 +941,11 @@ case ${target} in
       tm_defines="$tm_defines TARGET_VXWORKS7=1"
       ;;
   esac
+  case $target in
+    *64-*-vxworks*)
+      tm_defines="$tm_defines TARGET_VXWORKS64=1"
+      ;;
+  esac
   ;;
 *-*-elf|arc*-*-elf*)
   # Assume that newlib is being used and so __cxa_atexit is provided.

gcc/config/vxworks-dummy.h

@@ -22,7 +22,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
-/* True if we're targeting VxWorks, then VxWorks7.  */
+/* True if we're targeting VxWorks, VxWorks7 and/or 64bit.  */
 #ifndef TARGET_VXWORKS
 #define TARGET_VXWORKS 0
 #endif
@@ -31,6 +31,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #define TARGET_VXWORKS7 0
 #endif
 
+#ifndef TARGET_VXWORKS64
+#define TARGET_VXWORKS64 0
+#endif
+
 /* True if generating code for a VxWorks RTP.  */
 #ifndef TARGET_VXWORKS_RTP
 #define TARGET_VXWORKS_RTP false