Add support for Xilinx MicroBlaze processor.

        * bfd/Makefile.am: Add cpu-microblaze.{lo,c}, elf32-microblaze.{lo,c}.
        * bfd/Makefile.in: Same.
        * bfd/archures.c: Add bfd_arch_microblaze.
        * bfd/bfd-in2.h: Regenerate.
        * bfd/config.bfd: Add microblaze target.
        * bfd/configure: Add bfd_elf32_microblaze_vec target.
        * bfd/configure.in: Same.
        * bfd/cpu-microblaze.c: New.
        * bfd/elf32-microblaze.c: New.
        * bfd/libbfd-in.h: Add prototype _bfd_dwarf2_fixup_section_debug_loc().
        * bfd/libbfd.h: Regenerate.
        * bfd/reloc.c: Add MICROBLAZE relocations.
        * bfd/section.c: Add struct relax_table and relax_count to section.
        * bfd/targets.c: Add bfd_elf32_microblaze_vec.
        * binutils/MAINTAINERS: Add self as maintainer.
        * binutils/readelf.c: Include elf/microblaze.h, add EM_MICROBLAZE &
        EM_MICROBLAZE_OLD to guess_is_rela(), dump_relocations(),
        get_machine_name().
        * config.sub: Add microblaze target.
        * configure: Same.
        * configure.ac: Same.
        * gas/Makefile.am: add microblaze to CPU_TYPES, config/tc-microblaze.c to
        TARGET_CPU_CFILES, config/tc-microblaze.h to TARGET_CPU_HFILES, add
        DEP_microblaze_elf target.
        * gas/Makefile.in: Same.
        * gas/config/tc-microblaze.c: Add MicroBlaze assembler.
        * gas/config/tc-microblaze.h: Add header for tc-microblaze.c.
        * gas/configure: Add microblaze target.
        * gas/configure.in: Same.
        * gas/configure.tgt: Same.
        * gas/doc/Makefile.am: Add c-microblaze.texi to CPU_DOCS.
        * gas/doc/Makefile.in: Same.
        * gas/doc/all.texi: Set MICROBLAZE.
        * gas/doc/as.texinfo: Add MicroBlaze doc links.
        * gas/doc/c-microblaze.texi: New MicroBlaze docs.
        * include/dis-asm.h: Decl print_insn_microblaze().
        * include/elf/common.h: Define EM_MICROBLAZE & EM_MICROBLAZE_OLD.
        * include/elf/microblaze.h: New reloc definitions.
        * ld/Makefile.am: Add eelf32mb_linux.o, eelf32microblaze.o to
        ALL_EMULATIONS, targets.
        * ld/Makefile.in: Same.
        * ld/configure.tgt: Add microblaze*-linux*, microblaze* targets.
        * ld/emulparams/elf32mb_linux.sh: New.
        * ld/emulparams/elf32microblaze.sh. New.
        * ld/scripttempl/elfmicroblaze.sc: New.
        * opcodes/Makefile.am: Add microblaze-opc.h to HFILES, microblaze-dis.c to
        CFILES, microblaze-dis.lo to ALL_MACHINES, targets.
        * opcodes/Makefile.in: Same.
        * opcodes/configure: Add bfd_microblaze_arch target.
        * opcodes/configure.in: Same.
        * opcodes/disassemble.c: Define ARCH_microblaze, return
        print_insn_microblaze().
        * opcodes/microblaze-dis.c: New MicroBlaze disassembler.
        * opcodes/microblaze-opc.h: New MicroBlaze opcode definitions.
        * opcodes/microblaze-opcm.h: New MicroBlaze opcode types.

1 files changed, 114 insertions, 0 deletions

diff --git a/gas/config/tc-microblaze.h b/gas/config/tc-microblaze.h
new file mode 100644
index 0000000..db8d227
--- /dev/null
+++ b/gas/config/tc-microblaze.h
@@ -0,0 +1,114 @@
+/* tc-microblaze.h -- Header file for tc-microblaze.c.
+
+   Copyright 2009 Free Software Foundation, Inc.
+
+   This file is part of GAS, the GNU Assembler.
+
+   GAS 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.
+
+   GAS 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 GAS; see the file COPYING.  If not, write to the Free
+   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+   02110-1301, USA.  */
+
+#ifndef	TC_MICROBLAZE
+#define TC_MICROBLAZE 1
+
+#define TARGET_ARCH	bfd_arch_microblaze
+/* Used to initialise target_big_endian.  */
+#define TARGET_BYTES_BIG_ENDIAN 1
+
+#define IGNORE_NONSTANDARD_ESCAPES
+
+#define TC_RELOC_MANGLE(a,b,c) tc_reloc_mangle (a, b, c)
+
+/* We need to handle expressions of type "symbol op symbol" and create
+   relocs for such expressions as -relax in linker can change the value
+   of such expressions */
+#define TC_CONS_FIX_NEW cons_fix_new_microblaze
+#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_cons_expression_microblaze (EXP, NBYTES)
+extern void parse_cons_expression_microblaze PARAMS ((expressionS *, int));
+
+#define TC_FORCE_RELOCATION_SECTION(FIXP,SEG) 1
+#define UNDEFINED_DIFFERENCE_OK 1
+
+#define TC_FORCE_RELOCATION_LOCAL(FIX)	\
+  (!(FIX)->fx_pcrel			\
+   || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOT	\
+   || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_PLT	\
+   || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOTOFF	\
+   || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_32_GOTOFF	\
+   || TC_FORCE_RELOCATION (FIX))
+
+#define tc_fix_adjustable(X)  tc_microblaze_fix_adjustable(X)
+extern int tc_microblaze_fix_adjustable (struct fix *);
+
+extern const struct relax_type md_relax_table[];
+#define TC_GENERIC_RELAX_TABLE md_relax_table
+
+/* We don't need to handle .word strangely.  */
+#define WORKING_DOT_WORD
+
+#define LISTING_HEADER        	"Xilinx MicroBlaze GAS Listing"
+#define LISTING_LHS_CONT_LINES	4
+
+#define NEED_FX_R_TYPE	1
+
+/* We want local label support.  */
+#define LOCAL_LABELS_FB 1
+     
+/* Want the section information too... */
+#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
+
+#define MD_APPLY_FIX3  /* We want the segment as well.  */
+
+/* We set the fx_done field appropriately in md_apply_fix.  */
+#define TC_HANDLES_FX_DONE
+
+#ifdef OBJ_ELF
+
+#define TARGET_FORMAT (target_big_endian ? "elf32-microblaze" : "elf32-microblaze-little")
+
+#define ELF_TC_SPECIAL_SECTIONS \
+  { ".sdata",		SHT_PROGBITS,	SHF_ALLOC + SHF_WRITE }, \
+  { ".sbss",		SHT_NOBITS,	SHF_ALLOC + SHF_WRITE }, \
+  { ".sdata2",		SHT_PROGBITS,	SHF_ALLOC }, \
+  { ".sbss2",		SHT_PROGBITS,	SHF_ALLOC }, \
+/* Other special sections not generated by the assembler: .reginfo,
+   .liblist, .conflict, .gptab, .got, .dynamic, .rel.dyn.  */
+
+#endif /* OBJ_ELF */
+
+#ifndef TARGET_FORMAT
+# error No target format specified.
+#endif
+
+#include "write.h"        /* For definition of fixS */
+  
+extern void      md_begin            (void);
+extern void      md_assemble         (char *);
+extern symbolS * md_undefined_symbol (char *);
+extern char *    md_atof             (int, char *, int *);
+extern int       md_parse_option     (int, char *);
+extern void      md_show_usage       (FILE *);
+extern void      md_convert_frag               (bfd *, segT, fragS *);
+extern void      md_operand                    (expressionS *);
+extern int       md_estimate_size_before_relax (fragS *, segT);
+extern void      md_number_to_chars            (char *, valueT, int);
+extern valueT    md_section_align              (segT, valueT);
+extern long      md_pcrel_from_section         (fixS *, segT);
+extern arelent * tc_gen_reloc                  (asection *, fixS *);
+extern void 	 cons_fix_new_microblaze       (fragS *, int, int, expressionS *);
+extern void 	 md_apply_fix3 		       (fixS *, valueT *, segT);
+
+#define EXTERN_FORCE_RELOC -1
+
+#endif /* TC_MICROBLAZE */