Bi-endian support for moxie

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@191285 138bc75d-0d04-0410-961f-82ee72b054a4

3 files changed, 44 insertions, 5 deletions

diff --git a/gcc/config/moxie/moxie.h b/gcc/config/moxie/moxie.h
index c80d26c5ae9..7604ac427a0 100644
--- a/gcc/config/moxie/moxie.h
+++ b/gcc/config/moxie/moxie.h
@@ -41,9 +41,13 @@
 #define LIB_SPEC "%{!shared:%{!symbolic:-lc}}"
 
 #undef  LINK_SPEC
-#define LINK_SPEC "%{h*} %{v:-V} \
+#define LINK_SPEC "%{h*} %{v:-V} %{!mel:-EB} %{mel:-EL}\
 		   %{static:-Bstatic} %{shared:-shared} %{symbolic:-Bsymbolic}"
 
+#ifndef MULTILIB_DEFAULTS
+#define MULTILIB_DEFAULTS { "meb" }
+#endif
+
 /* Layout of Source Language Data Types */
 
 #define INT_TYPE_SIZE 32
@@ -192,6 +196,7 @@ enum reg_class
 /* The Overall Framework of an Assembler File */
 
 #undef  ASM_SPEC
+#define ASM_SPEC "%{!mel:-EB} %{mel:-EL}"
 #define ASM_COMMENT_START "#"
 #define ASM_APP_ON ""
 #define ASM_APP_OFF ""
@@ -291,8 +296,8 @@ enum reg_class
 /* Storage Layout */
 
 #define BITS_BIG_ENDIAN 0
-#define BYTES_BIG_ENDIAN 1
-#define WORDS_BIG_ENDIAN 1
+#define BYTES_BIG_ENDIAN ( ! TARGET_LITTLE_ENDIAN )
+#define WORDS_BIG_ENDIAN ( ! TARGET_LITTLE_ENDIAN )
 
 /* Alignment required for a function entry point, in bits.  */
 #define FUNCTION_BOUNDARY 16
@@ -473,8 +478,12 @@ enum reg_class
 
 #define TARGET_CPU_CPP_BUILTINS() \
   { \
-    builtin_define_std ("moxie");		\
-    builtin_define_std ("MOXIE");		\
+    builtin_define_std ("moxie");			\
+    builtin_define_std ("MOXIE");			\
+    if (TARGET_LITTLE_ENDIAN)				\
+      builtin_define ("__MOXIE_LITTLE_ENDIAN__");	\
+    else						\
+      builtin_define ("__MOXIE_BIG_ENDIAN__");		\
   }
 
 #define HAS_LONG_UNCOND_BRANCH true
diff --git a/gcc/config/moxie/moxie.opt b/gcc/config/moxie/moxie.opt
new file mode 100644
index 00000000000..00f3ff82cc8
--- /dev/null
+++ b/gcc/config/moxie/moxie.opt
@@ -0,0 +1,27 @@
+; Options for the moxie compiler port.
+
+; Copyright (C) 2012 Free Software Foundation, Inc.
+;
+; This file is part of GCC.
+;
+; GCC is free software; you can redistribute it and/or modify it under
+; the terms of the GNU General Public License as published by the Free
+; Software Foundation; either version 3, or (at your option) any later
+; version.
+;
+; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+; WARRANTY; without even the implied warranty of MERCHANTABILITY or
+; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+; for more details.
+;
+; You should have received a copy of the GNU General Public License
+; along with GCC; see the file COPYING3.  If not see
+; <http://www.gnu.org/licenses/>.
+
+meb
+Target RejectNegative Report InverseMask(LITTLE_ENDIAN)
+Generate big-endian code
+
+mel
+Target RejectNegative Report Mask(LITTLE_ENDIAN)
+Generate little-endian code
diff --git a/gcc/config/moxie/t-moxie b/gcc/config/moxie/t-moxie
index 5498ecbb354..9111fd603ab 100644
--- a/gcc/config/moxie/t-moxie
+++ b/gcc/config/moxie/t-moxie
@@ -18,3 +18,6 @@
 # along with GCC; see the file COPYING3.  If not see
 # <http://www.gnu.org/licenses/>.
 
+MULTILIB_OPTIONS     = meb/mel
+MULTILIB_DIRNAMES    = eb el
+