Add support for Andes NDS32:

BFD:
	* Makefile.am (BFD32_BACKENDS, BFD32_BACKENDS_CFILES): Add nds32
	files.
	* Makefile.in: Regenerate.
	* archures.c (bfd_nds32_arch): Add nds32 target.
	* bfd-in2.h: Regenerate.
	* config.bfd (nds32*le-*-linux): Add bfd_elf32_nds32lelin_vec
	and bfd_elf32_nds32belin_vec.
	(nds32*be-*-linux*): Likewise.
	(nds32*le-*-*): Add bfd_elf32_nds32le_vec and bfd_elf32_nds32be_vec.
	(nds32*be-*-*): Likewise.
	* configure.in (bfd_elf32_nds32be_vec): Add elf32-nds32.lo.
	(bfd_elf32_nds32le_vec): Likewise.
	(bfd_elf32_nds32belin_vec): Likewise.
	(bfd_elf32_nds32lelin_vec): Likewise.
	* configure: Regenerate.
	* cpu-nds32.c: New file for nds32.
	* elf-bfd.h: Add NDS32_ELF_DATA.
	* elf32-nds32.c: New file for nds32.
	* elf32-nds32.h: New file for nds32.
	* libbfd.h: Regenerate.
	* reloc.c: Add relocations for nds32.
	* targets.c (bfd_elf32_nds32be_vec): New declaration for nds32.
	(bfd_elf32_nds32le_vec): Likewise.
	(bfd_elf32_nds32belin_vec): Likewise.
	(bfd_elf32_nds32lelin_vec): Likewise.

BINUTILS:
	* readelf.c: Include elf/nds32.h
	(guess_is_rela): Add case for EM_NDS32.
	(dump_relocations): Add case for EM_NDS32.
	(decode_NDS32_machine_flags): New.
	(get_machine_flags): Add case for EM_NDS32.
	(is_32bit_abs_reloc): Likewise.
	(is_16bit_abs_reloc): Likewise.
	(process_nds32_specific): New.
	(process_arch_specific): Add case for EM_NDS32.
	* NEWS: Announce Andes nds32 support.
	* MAINTAINERS: Add nds32 maintainers.
  TESTSUITE:
	* binutils-all/objdump.exp: Add NDS32 cpu.
	* binutils-all/readelf.r: Skip extra reloc created by NDS32.

GAS:
	* Makefile.am (TARGET_CPU_CFILES): Add config/tc-nds32.c.
	(TARGET_CPU_HFILES): Add config/tc-nds32.h.
	* Makefile.in: Regenerate.
	* configure.in (nds32): Add nds32 target extension config support.
	* configure.tgt : Add case for nds32-*-elf* and nds32-*-linux*.
	* configure: Regenerate.
	* config/tc-nds32.c: New file for nds32.
	* config/tc-nds32.h: New file for nds32.
	* doc/Makefile.am (CPU_DOCS): Add c-nds32.texi.
	* doc/Makefile.in: Regenerate.
	* doc/as.texinfo: Add nds32 options.
	* doc/all.texi: Set NDS32.
	* doc/c-nds32.texi: New file dor nds32 document.
	* NEWS: Announce Andes nds32 support.
  TESTSUITE:
	* gas/all/gas.exp: Add expected failures for NDS32.
	* gas/elf/elf.exp: Likewise.
	* gas/lns/lns.exp: Use alternate test.
	* gas/macros/irp.d: Skip for NDS32.
	* gas/macros/macros.exp: Skip some tests for the NDS32.
	* gas/macros/rept.d: Skip for NDS32.
	* gas/macros/test3.d: Skip for NDS32.
	* gas/nds32: New directory.
	* gas/nds32/alu-1.s: New test.
	* gas/nds32/alu-1.d: Likewise.
	* gas/nds32/alu-2.s: Likewise.
	* gas/nds32/alu-2.d: Likewise.
	* gas/nds32/br-1.d: Likewise.
	* gas/nds32/br-1.s: Likewise.
	* gas/nds32/br-2.d: Likewise.
	* gas/nds32/br-2.s: Likewise.
	* gas/nds32/ji-jr.d: Likewise.
	* gas/nds32/ji-jr.s: Likewise.
	* gas/nds32/ls.d: Likewise.
	* gas/nds32/ls.s: Likewise.
	* gas/nds32/lsi.d: Likewise.
	* gas/nds32/lsi.s: Likewise.
	* gas/nds32/to-16bit-v1.d: Likewise.
	* gas/nds32/to-16bit-v1.s: Likewise.
	* gas/nds32/to-16bit-v2.d: Likewise.
	* gas/nds32/to-16bit-v2.s: Likewise.
	* gas/nds32/to-16bit-v3.d: Likewise.
	* gas/nds32/to-16bit-v3.s: Likewise.
	* gas/nds32/nds32.exp: New test driver.

LD:
	* Makefile.am (ALL_EMULATION_SOURCES): Add nds32 target.
	* Makefile.in: Regenerate.
	* configure.tgt: Add case for nds32*le-*-elf*, nds32*be-*-elf*,
	nds32*le-*-linux-gnu*, and nds32*be-*-linux-gnu*.
	* emulparams/nds32belf.sh: New file for nds32.
	* emulparams/nds32belf_linux.sh: Likewise.
	* emulparams/nds32belf16m.sh: Likewise.
	* emulparams/nds32elf.sh: Likewise.
	* emulparams/nds32elf_linux.sh: Likewise.
	* emulparams/nds32elf16m.sh: Likewise.
	* emultempl/nds32elf.em: Likewise.
	* scripttempl/nds32elf.sc}: Likewise.
	* gen-doc.texi: Set NDS32.
	* ld.texinfo: Set NDS32.
	* NEWS: Announce Andes nds32 support.
  TESTSUITE:
	* lib/ld-lib.exp: Add NDS32 to list of targets that do not support
	shared library generation.
	* ld-nds32: New directory.
	* ld-nds32/branch.d: New test.
	* ld-nds32/branch.ld: New test.
	* ld-nds32/branch.s: New test.
	* ld-nds32/diff.d: New test.
	* ld-nds32/diff.ld: New test.
	* ld-nds32/diff.s: New test.
	* ld-nds32/gp.d: New test.
	* ld-nds32/gp.ld: New test.
	* ld-nds32/gp.s: New test.
	* ld-nds32/imm.d: New test.
	* ld-nds32/imm.ld: New test.
	* ld-nds32/imm.s: New test.
	* ld-nds32/imm_symbol.s: New test.
	* ld-nds32/relax_jmp.d: New test.
	* ld-nds32/relax_jmp.ld: New test.
	* ld-nds32/relax_jmp.s: New test.
	* ld-nds32/relax_load_store.d: New test.
	* ld-nds32/relax_load_store.ld: New test.
	* ld-nds32/relax_load_store.s: New test.
	* ld-nds32/nds32.exp: New file.

OPCODES:
	* Makefile.am (TARGET_LIBOPCODES_CFILES): Add nds32-asm.c
	and nds32-dis.c.
	* Makefile.in: Regenerate.
	* configure.in: Add case for bfd_nds32_arch.
	* configure: Regenerate.
	* disassemble.c (ARCH_nds32): Define.
	* nds32-asm.c: New file for nds32.
	* nds32-asm.h: New file for nds32.
	* nds32-dis.c: New file for nds32.
	* nds32-opc.h: New file for nds32.

INCLUDE:
	* dis-asm.h (print_insn_nds32): Add nds32 target.
	* elf/nds32.h: New file for nds32.
	* opcode/nds32.h: New file for nds32.

1 files changed, 147 insertions, 0 deletions

diff --git a/bfd/elf32-nds32.h b/bfd/elf32-nds32.h
new file mode 100644
index 0000000..7b97f30
--- /dev/null
+++ b/bfd/elf32-nds32.h
@@ -0,0 +1,147 @@
+/* NDS32-specific support for 32-bit ELF.
+   Copyright (C) 2012-2013 Free Software Foundation, Inc.
+   Contributed by Andes Technology Corporation.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program 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 of the License, or
+   (at your option) any later version.
+
+   This program 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 this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+   02110-1301, USA.*/
+
+#ifndef ELF32_NDS32_H
+#define ELF32_NDS32_H
+
+/* Relocation flags encoded in r_addend.  */
+
+/* Relocation flags for R_NDS32_ERLAX_ENTRY.  */
+
+/* Set if relax on this section is done or disabled.  */
+#define R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG			(1 << 31)
+/* Optimize for performance.  */
+#define R_NDS32_RELAX_ENTRY_OPTIMIZE_FLAG			(1 << 30)
+/* Optimize for size.  Branch destination 4-byte adjustment
+   may be disabled.  */
+#define R_NDS32_RELAX_ENTRY_OPTIMIZE_FOR_SPACE_FLAG		(1 << 29)
+/* To distinguish the assembly code generated by compiler
+   or written manually.  */
+#define R_NDS32_RELAX_ENTRY_VERBATIM_FLAG			(1 << 28)
+/* EX9 and link-time IFC must be explicitly enabled, so we
+   won't mess up handcraft assembly code.  */
+/* Enable EX9 optimization for this section.  */
+#define R_NDS32_RELAX_ENTRY_EX9_FLAG				(1 << 2)
+/* Enable IFC optimization for this section.  */
+#define R_NDS32_RELAX_ENTRY_IFC_FLAG				(1 << 3)
+
+
+/* Relocation flags for R_NDS32_INSN16.  */
+
+#define R_NDS32_INSN16_CONVERT_FLAG				(1 << 0)
+/* Convert a gp-relative access (e.g., lwi.gp)
+   to fp-as-gp access (lwi37.fp).
+   This value is used by linker internally only.
+   It's fine to change the vlaue.  */
+#define R_NDS32_INSN16_FP7U2_FLAG				(1 << 1)
+
+/* Relocation flags for R_NDS32_RELAX_REGION_OMIT_FP_START/END.  */
+
+/* OMIT_FP_FLAG marks the region for applying fp-as-gp
+   optimization.  */
+#define R_NDS32_RELAX_REGION_OMIT_FP_FLAG			(1 << 0)
+/* NOT_OMIT_FP_FLAG is set if this region is not worth
+   for fp-as-gp.  */
+#define R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG			(1 << 1)
+/* Suppress EX9 optimization in the region.  */
+#define R_NDS32_RELAX_REGION_NO_EX9_FLAG			(1 << 2)
+/* A Innermost loop region.  Some optimizations is suppressed
+   in this region due to performance drop.  */
+#define R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG		(1 << 4)
+
+/* Relax tag for nds32_elf_relax_section, we have to specify which
+   optimization do in this round.  */
+enum
+{
+  NDS32_RELAX_NONE_ROUND = 0,
+  NDS32_RELAX_JUMP_IFC_ROUND = 1,
+  NDS32_RELAX_EX9_BUILD_ROUND,
+  NDS32_RELAX_EX9_REPLACE_ROUND
+
+};
+
+/* Optimization status mask.  */
+#define NDS32_RELAX_JUMP_IFC_DONE	(1 << 0)
+#define NDS32_RELAX_EX9_DONE		(1 << 1)
+
+/* Optimization turn on mask.  */
+#define NDS32_RELAX_JUMP_IFC_ON		(1 << 0)
+#define NDS32_RELAX_EX9_ON		(1 << 1)
+
+/* The break 0xea defined for ex9 table to keep for trace32 to use 0xeaea.  */
+#define INSN_BREAK_EA   0x64001d4a
+
+extern void nds32_insertion_sort
+  (void *, size_t, size_t, int (*) (const void *, const void *));
+
+extern int         nds32_elf_ex9_init (void);
+extern void        nds32_elf_ex9_reloc_jmp (struct bfd_link_info *);
+extern void        nds32_elf_ex9_finish (struct bfd_link_info *);
+extern bfd_boolean nds32_elf_ex9_itb_base (struct bfd_link_info *);
+extern void        nds32_elf_ex9_import_table (struct bfd_link_info *);
+extern bfd_boolean nds32_elf_ifc_reloc (void);
+extern bfd_boolean nds32_elf_ifc_finish (struct bfd_link_info *);
+extern int         nds32_convert_32_to_16 (bfd *, uint32_t, uint16_t *, int *);
+extern int         nds32_convert_16_to_32 (bfd *, uint16_t, uint32_t *);
+extern void        bfd_elf32_nds32_set_target_option (struct bfd_link_info *, int, int,
+						      FILE *, int, int, int, int, FILE *, FILE *,
+						      int, int, bfd_boolean, bfd_boolean);
+
+#define nds32_elf_hash_table(info) \
+  (elf_hash_table_id ((struct elf_link_hash_table *) ((info)->hash)) \
+   == NDS32_ELF_DATA ? ((struct elf_nds32_link_hash_table *) ((info)->hash)) : NULL)
+
+/* Hash table structure for target nds32.  There are some members to
+   save target options passed from nds32elf.em to bfd.  */
+
+struct elf_nds32_link_hash_table
+{
+  struct elf_link_hash_table root;
+
+  /* Short-cuts to get to dynamic linker sections.  */
+  asection *sgot;
+  asection *sgotplt;
+  asection *srelgot;
+  asection *splt;
+  asection *srelplt;
+  asection *sdynbss;
+  asection *srelbss;
+
+  /* Small local sym to section mapping cache.  */
+  struct sym_cache sym_cache;
+
+  /* Target dependent options.  */
+  int relax_fp_as_gp;		/* --mrelax-omit-fp  */
+  int eliminate_gc_relocs;	/* --meliminate-gc-relocs  */
+  FILE *sym_ld_script;		/* --mgen-symbol-ld-script=<file>  */
+  /* Disable if linking a dynamically linked executable.  */
+  int load_store_relax;
+  int target_optimize;		/* Switch optimization.  */
+  int relax_status;		/* Finished optimization.  */
+  int relax_round;		/* Going optimization.  */
+  FILE *ex9_export_file;	/* --mexport-ex9=<file>  */
+  FILE *ex9_import_file;	/* --mimport-ex9=<file>  */
+  int update_ex9_table;		/* --mupdate-ex9.  */
+  int ex9_limit;
+  bfd_boolean ex9_loop_aware;	/* Ignore ex9 if inside a loop.  */
+  bfd_boolean ifc_loop_aware;	/* Ignore ifc if inside a loop.  */
+};
+#endif