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, 74 insertions, 2 deletions

diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index d957610..adaba63 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -1405,6 +1405,13 @@ typedef struct bfd_section
      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
@@ -1494,6 +1501,17 @@ typedef struct bfd_section
   } 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
@@ -1629,8 +1647,8 @@ extern asection bfd_ind_section;
   /* 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,                    \
@@ -2071,6 +2089,7 @@ enum bfd_architecture
 #define bfd_mach_r800           11 /* R800: successor with multiplication.  */
   bfd_arch_lm32,      /* Lattice Mico32 */
 #define bfd_mach_lm32      1
+  bfd_arch_microblaze,/* Xilinx MicroBlaze. */
   bfd_arch_last
   };
 
@@ -4513,6 +4532,59 @@ BFD_RELOC_MACH_O_PAIR.  */
 
 /* Mach-O generic relocations.  */
   BFD_RELOC_MACH_O_PAIR,
+
+/* This is a 32 bit reloc for the microblaze that stores the 
+low 16 bits of a value  */
+  BFD_RELOC_MICROBLAZE_32_LO,
+
+/* This is a 32 bit pc-relative reloc for the microblaze that 
+stores the low 16 bits of a value  */
+  BFD_RELOC_MICROBLAZE_32_LO_PCREL,
+
+/* This is a 32 bit reloc for the microblaze that stores a 
+value relative to the read-only small data area anchor  */
+  BFD_RELOC_MICROBLAZE_32_ROSDA,
+
+/* This is a 32 bit reloc for the microblaze that stores a 
+value relative to the read-write small data area anchor  */
+  BFD_RELOC_MICROBLAZE_32_RWSDA,
+
+/* This is a 32 bit reloc for the microblaze to handle 
+expressions of the form "Symbol Op Symbol"  */
+  BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM,
+
+/* This is a 64 bit reloc that stores the 32 bit pc relative 
+value in two words (with an imm instruction).  No relocation is 
+done here - only used for relaxing  */
+  BFD_RELOC_MICROBLAZE_64_NONE,
+
+/* This is a 64 bit reloc that stores the 32 bit pc relative 
+value in two words (with an imm instruction).  The relocation is
+PC-relative GOT offset  */
+  BFD_RELOC_MICROBLAZE_64_GOTPC,
+
+/* This is a 64 bit reloc that stores the 32 bit pc relative 
+value in two words (with an imm instruction).  The relocation is
+GOT offset  */
+  BFD_RELOC_MICROBLAZE_64_GOT,
+
+/* This is a 64 bit reloc that stores the 32 bit pc relative 
+value in two words (with an imm instruction).  The relocation is
+PC-relative offset into PLT  */
+  BFD_RELOC_MICROBLAZE_64_PLT,
+
+/* This is a 64 bit reloc that stores the 32 bit GOT relative 
+value in two words (with an imm instruction).  The relocation is
+relative offset from _GLOBAL_OFFSET_TABLE_  */
+  BFD_RELOC_MICROBLAZE_64_GOTOFF,
+
+/* This is a 32 bit reloc that stores the 32 bit GOT relative 
+value in a word.  The relocation is relative offset from  */
+  BFD_RELOC_MICROBLAZE_32_GOTOFF,
+
+/* This is used to tell the dynamic linker to copy the value out of
+the dynamic object into the runtime process image.  */
+  BFD_RELOC_MICROBLAZE_COPY,
   BFD_RELOC_UNUSED };
 typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
 reloc_howto_type *bfd_reloc_type_lookup