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.

bfd/section.c

diff --git a/bfd/section.c b/bfd/section.c
index dc8225f..592da69 100644
--- a/bfd/section.c
+++ b/bfd/section.c
@@ -428,6 +428,13 @@
 .     section size calculated on a previous linker relaxation pass.  *}
 .  bfd_size_type rawsize;
 .
+.  {* Relaxation table. *}
+.  struct relax_table *relax;
+.
+.  {* Count of used relaxation table entries. *}
+.  int relax_count;
+.
+.
 .  {* If this section is going to be output, then this value is the
 .     offset in *bytes* into the output section of the first byte in the
 .     input section (byte ==> smallest addressable unit on the
@@ -517,6 +524,17 @@
 .  } map_head, map_tail;
 .} asection;
 .
+.{* Relax table contains information about instructions which can
+.   be removed by relaxation -- replacing a long address with a 
+.   short address.  *}
+.struct relax_table {
+.  {* Address where bytes may be deleted. *}
+.  bfd_vma addr;
+.  
+.  {* Number of bytes to be deleted.  *}
+.  int size;
+.};
+.
 .{* These sections are global, and are managed by BFD.  The application
 .   and target back end are not permitted to change the values in
 .   these sections.  New code should use the section_ptr macros rather
@@ -652,8 +670,8 @@
 .  {* has_tls_get_addr_call, has_gp_reloc, need_finalize_relax,     *}	\
 .     0,                     0,            0,				\
 .									\
-.  {* reloc_done, vma, lma, size, rawsize                           *}	\
-.     0,          0,   0,   0,    0,					\
+.  {* reloc_done, vma, lma, size, rawsize, relax, relax_count,      *}	\
+.     0,          0,   0,   0,    0,       0,     0,			\
 .									\
 .  {* output_offset, output_section,              alignment_power,  *}	\
 .     0,             (struct bfd_section *) &SEC, 0,			\