Add big-endian support for tilegx.

bfd/
	* config.bfd (tilegx-*-*): rename little endian vector; add big
	endian vector.
	(tilegxbe-*-*): New case.
	* configure.in (bfd_elf32_tilegx_vec): Rename...
	(bfd_elf32_tilegx_le_vec): ... to this.
	(bfd_elf32_tilegx_be_vec): New vector.
	(bfd_elf64_tilegx_vec): Rename...
	(bfd_elf64_tilegx_le_vec): ... to this.
	(bfd_elf64_tilegx_be_vec): New vector.
	* configure: Regenerate.
	* elf32-tilegx.c (TARGET_LITTLE_SYM): Rename.
	(TARGET_LITTLE_NAME): Ditto.
	(TARGET_BIG_SYM): Define.
	(TARGET_BIG_NAME): Define.
	* elf64-tilegx.c (TARGET_LITTLE_SYM): Rename.
	(TARGET_LITTLE_NAME): Ditto.
	(TARGET_BIG_SYM): Define.
	(TARGET_BIG_NAME): Define.
	* targets.c (bfd_elf32_tilegx_vec): Rename...
	(bfd_elf32_tilegx_le_vec): ... to this.
	(bfd_elf32_tilegx_be_vec): Declare.
	(bfd_elf64_tilegx_vec): Rename...
	(bfd_elf64_tilegx_le_vec): ... to this.
	(bfd_elf64_tilegx_be_vec): Declare.
	(_bfd_target_vector): Add / rename above vectors.

binutils/testsuite/
	* binutils-all/objdump.exp (cpus_expected): Add tilegx.

gas/
	* tc-tilegx.c (tilegx_target_format): Handle big endian.
	(OPTION_EB): Define.
	(OPTION_EL): Define.
	(md_longopts): Add entries for "EB" and "EL".
	(md_parse_option): Handle OPTION_EB and OPTION_EL.
	(md_show_usage): Add -EB and -EL.
	(md_number_to_chars): New.
	* tc-tilegx.h (TARGET_BYTES_BIG_ENDIAN): Guard definition with
	ifndef.
	(md_number_to_chars): Delete.
	* configure.tgt (tilegx*be): Handle.
	* doc/as.texinfo [TILE-Gx]: Document -EB and -EL.
	* doc/c-tilegx.texi: Ditto.

ld/
	* Makefile.am (ALL_EMULATION_SOURCES): Add eelf32tilegx_be.c.
	(ALL_64_EMULATION_SOURCES): Add eelf64tilegx_be.c.
	(eelf32tilegx_be.c): Add rule to build this file.
	(eelf64tilegx_be.c): Ditto.
	* Makefile.in: Regenerate.
	* configure.tgt (tilegx-*-*): Support big endian.
	(tilegxbe-*-*): New.
	* emulparams/elf32tilegx.sh (OUTPUT_FORMAT): Rename.
	(BIG_OUTPUT_FORMAT): Define.
	(LITTLE_OUTPUT_FORMAT): Define.
	* emulparams/elf32tilegx_be.sh: New.
	* emulparams/elf64tilegx.sh (OUTPUT_FORMAT): Rename.
	(BIG_OUTPUT_FORMAT): Define.
	(LITTLE_OUTPUT_FORMAT): Define.
	* emulparams/elf64tilegx_be.sh: New.

ld/testsuite/
	* ld-tilegx/reloc-be.d: New.
	* ld-tilegx/reloc-le.d: New.
	* ld-tilegx/reloc.d: Delete.
	* ld-tilegx/tilegx.exp: Test big and little endian.

6 files changed, 52 insertions, 6 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index dda0c1a..fd16b97 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,6 +1,19 @@
 2012-02-25  Walter Lee  <walt@tilera.com>
 
-	* tc-tilegx.c (md_begin): set architecture and machine.
+	* tc-tilegx.c (md_begin): Set architecture and machine.
+	(tilegx_target_format): Handle big endian.
+	(OPTION_EB): Define.
+	(OPTION_EL): Define.
+	(md_longopts): Add entries for "EB" and "EL".
+	(md_parse_option): Handle OPTION_EB and OPTION_EL.
+	(md_show_usage): Add -EB and -EL.
+	(md_number_to_chars): New.
+	* tc-tilegx.h (TARGET_BYTES_BIG_ENDIAN): Guard definition with
+	ifndef.
+	(md_number_to_chars): Delete.
+	* configure.tgt (tilegx*be): Handle.
+	* doc/as.texinfo [TILE-Gx]: Document -EB and -EL.
+	* doc/c-tilegx.texi: Ditto.
 
 2012-02-21  H.J. Lu  <hongjiu.lu@intel.com>
 
diff --git a/gas/config/tc-tilegx.c b/gas/config/tc-tilegx.c
index 9f6e349..01237d1 100644
--- a/gas/config/tc-tilegx.c
+++ b/gas/config/tc-tilegx.c
@@ -72,12 +72,18 @@ static int tilegx_arch_size = 64;
 const char *
 tilegx_target_format (void)
 {
-  return tilegx_arch_size == 64 ? "elf64-tilegx" : "elf32-tilegx";
+    if (target_big_endian) {
+        return tilegx_arch_size == 64 ? "elf64-tilegx-be" : "elf32-tilegx-be";
+    } else {
+        return tilegx_arch_size == 64 ? "elf64-tilegx-le" : "elf32-tilegx-le";
+    }
 }
 
 
 #define OPTION_32 (OPTION_MD_BASE + 0)
 #define OPTION_64 (OPTION_MD_BASE + 1)
+#define OPTION_EB (OPTION_MD_BASE + 2)
+#define OPTION_EL (OPTION_MD_BASE + 3)
 
 const char *md_shortopts = "VQ:";
 
@@ -85,6 +91,8 @@ struct option md_longopts[] =
 {
   {"32", no_argument, NULL, OPTION_32},
   {"64", no_argument, NULL, OPTION_64},
+  {"EB", no_argument, NULL, OPTION_EB },
+  {"EL", no_argument, NULL, OPTION_EL },
   {NULL, no_argument, NULL, 0}
 };
 
@@ -113,6 +121,14 @@ md_parse_option (int c, char *arg ATTRIBUTE_UNUSED)
       tilegx_arch_size = 64;
       break;
 
+    case OPTION_EB:
+      target_big_endian = 1;
+      break;
+
+    case OPTION_EL:
+      target_big_endian = 0;
+      break;
+
     default:
       return 0;
     }
@@ -126,6 +142,7 @@ md_show_usage (FILE *stream)
   fprintf (stream, _("\
   -Q                      ignored\n\
   -V                      print assembler version number\n\
+  -EB/-EL                 generate big-endian/little-endian code\n\
   --32/--64               generate 32bit/64bit code\n"));
 }
 
@@ -1269,6 +1286,15 @@ const pseudo_typeS md_pseudo_table[] =
 /* Equal to MAX_PRECISION in atof-ieee.c  */
 #define MAX_LITTLENUMS 6
 
+void
+md_number_to_chars (char * buf, valueT val, int n)
+{
+  if (target_big_endian)
+    number_to_chars_bigendian (buf, val, n);
+  else
+    number_to_chars_littleendian (buf, val, n);
+}
+
 /* Turn the string pointed to by litP into a floating point constant
    of type TYPE, and emit the appropriate bytes.  The number of
    LITTLENUMS emitted is stored in *SIZEP.  An error message is
diff --git a/gas/config/tc-tilegx.h b/gas/config/tc-tilegx.h
index aad6313..ec8a40d 100644
--- a/gas/config/tc-tilegx.h
+++ b/gas/config/tc-tilegx.h
@@ -24,7 +24,9 @@
 
 #define TC_TILEGX
 
+#ifndef TARGET_BYTES_BIG_ENDIAN
 #define TARGET_BYTES_BIG_ENDIAN 0
+#endif
 
 #define WORKING_DOT_WORD
 
@@ -35,8 +37,6 @@ extern const char * tilegx_target_format (void);
 
 #define DWARF2_LINE_MIN_INSN_LENGTH	8
 
-#define md_number_to_chars		number_to_chars_littleendian
-
 #define DIFF_EXPR_OK   /* foo-. gets turned into PC relative relocs */
 
 #define HANDLE_ALIGN(fragp) tilegx_handle_align (fragp)
diff --git a/gas/configure.tgt b/gas/configure.tgt
index c33bb7a..06fb6ca 100644
--- a/gas/configure.tgt
+++ b/gas/configure.tgt
@@ -82,6 +82,8 @@ case ${cpu} in
   sparclet*)		cpu_type=sparc arch=sparclet ;;
   sparclite*)		cpu_type=sparc arch=sparclite ;;
   sparc*)		cpu_type=sparc arch=sparclite ;; # ??? See tc-sparc.c.
+  tilegx*be)		cpu_type=tilegx endian=big ;;
+  tilegx*)		cpu_type=tilegx endian=little ;;
   v850*)		cpu_type=v850 ;;
   x86_64*)		cpu_type=i386 arch=x86_64;;
   xtensa*)		cpu_type=xtensa arch=xtensa ;;
@@ -404,7 +406,7 @@ case ${generic_target} in
   tic54x-*-* | c54x*-*-*)		fmt=coff bfd_gas=yes need_libm=yes;;
   tic6x-*-*)				fmt=elf ;;
 
-  tilepro-*-* | tilegx-*-*)		fmt=elf ;;
+  tilepro-*-* | tilegx*-*-*)		fmt=elf ;;
 
   v850*-*-*)				fmt=elf ;;
 
diff --git a/gas/doc/as.texinfo b/gas/doc/as.texinfo
index 7a41f02..81ad370 100644
--- a/gas/doc/as.texinfo
+++ b/gas/doc/as.texinfo
@@ -497,7 +497,7 @@ gcc(1), ld(1), and the Info entries for @file{binutils} and @file{ld}.
 @ifset TILEGX
 
 @emph{Target TILE-Gx options:}
-   [@b{-m32}|@b{-m64}]
+   [@b{-m32}|@b{-m64}][@b{-EB}][@b{-EL}]
 @end ifset
 @ifset TILEPRO
 @c TILEPro has no machine-dependent assembler options
diff --git a/gas/doc/c-tilegx.texi b/gas/doc/c-tilegx.texi
index 66dd5a3..c2f5bc1 100644
--- a/gas/doc/c-tilegx.texi
+++ b/gas/doc/c-tilegx.texi
@@ -33,6 +33,11 @@ The following table lists all available TILE-Gx specific options:
 @item -m32 | -m64
 Select the word size, either 32 bits or 64 bits.
 
+@cindex @samp{-EB} option, TILE-Gx
+@cindex @samp{-EL} option, TILE-Gx
+@item -EB | -EL
+Select the endianness, either big-endian (-EB) or little-endian (-EL).
+
 @end table
 @c man end