Update the libgcc support for VxWorks AE/653

2019-11-12  Olivier Hainque  <hainque@adacore.com>

	libgcc/

        * config/t-gthr-vxworksae: New file, add all the gthr-vxworks
        sources except the cxx0x support to LIB2ADDEH.  We don't support
        cxx0x on AE/653.
        * config/t-vxworksae: New file.

        * config.host: Handle *-*-vxworksae: Add the two aforementioned
	Makefile fragment files at their expected position in the tmake_file
	list, in accordance with what is done for other VxWorks variants.

From-SVN: r278250

libgcc/ChangeLog

+2019-11-12  Olivier Hainque  <hainque@adacore.com>
+
+	* config/t-gthr-vxworksae: New file, add all the gthr-vxworks
+	sources except the cxx0x support to LIB2ADDEH.  We don't support
+	cxx0x on AE/653.
+	* config/t-vxworksae: New file.
+	* config.host: Handle *-*-vxworksae: Add the two aforementioned
+	Makefile fragment files at their expected position in the tmake_file
+	list, in accordance with what is done for other VxWorks variants.
+
 2019-11-12  Corentin Gay  <gay@adacore.com>
 	    Jerome Lambourg  <lambourg@adacore.com>
 	    Olivier Hainque  <hainque@adacore.com>

libgcc/config.host

@@ -321,6 +321,9 @@ case ${host} in
 *-*-vxworks7*)
   tmake_file=t-vxworks7
   ;;
+*-*-vxworksae*)
+  tmake_file=t-vxworksae
+  ;;
 *-*-vxworks*)
   tmake_file=t-vxworks
   ;;
@@ -1520,6 +1523,9 @@ esac
 case ${target_thread_file} in
 vxworks)
 	case ${host} in
+	*-*-vxworksae)
+		tmake_file="${tmake_file} t-gthr-vxworksae"
+		;;
 	*-*-vxworks*)
 		tmake_file="${tmake_file} t-gthr-vxworks"
 		;;

libgcc/config/t-gthr-vxworksae

+# Extra libgcc2 modules used by gthr-vxworks.h functions. We don't
+# support the C++ threads on vx653.
+
+LIB2ADDEH += $(srcdir)/config/gthr-vxworks.c\
+	     $(srcdir)/config/gthr-vxworks-cond.c\
+	     $(srcdir)/config/gthr-vxworks-tls.c
+

libgcc/config/t-vxworksae

+# Don't build libgcc.a with debug info
+LIBGCC2_DEBUG_CFLAGS =
+
+# We do not have access to the cache library when building a vThreads
+# application.
+
+# This ensures that the correct target headers are used; some VxWorks
+# system headers have names that collide with GCC's internal (host)
+# headers, e.g. regs.h. Make sure the local libgcc headers still
+# prevail (e.g. unwind.h), and that gcc provided header files intended
+# to be user visible eventually are visible as well.
+LIBGCC2_INCLUDES = -nostdinc -I. \
+  -I$(MULTIBUILDTOP)../../gcc/include \
+  `case "/$(MULTIDIR)" in \
+     */mvthreads*) echo -I$(WIND_BASE)/target/vThreads/h -I$(WIND_BASE)/target/val/h -I$(WIND_BASE)/target/h/wrn/coreip ;; \
+     *) echo -I$(WIND_BASE)/target/h -I$(WIND_BASE)/target/h/wrn/coreip ;; \
+   esac`