Andes Technology has good news for you, we plan to update the nds32 port of binutils on upstream!

We have not only removed all unsupported and obsolete code, but also supported lost of new features,
including better link-time relaxations and TLS implementations. Besides, the files generated by the
newly assembler and linker usually get higher performance and more optimized code size.

ld	* emultempl/nds32elf.em (hyper_relax): New variable.
	(nds32_elf_create_output_section_statements):
	the parameters of bfd_elf32_nds32_set_target_option
	(PARSE_AND_LIST_PROLOGUE, PARSE_AND_LIST_OPTIONS,
	PARSE_AND_LIST_ARGS_CASES): Add new option --mhyper-relax.
	* emultempl/nds32elf.em (nds32_elf_after_open): Updated.
	* emultempl/nds32elf.em (tls_desc_trampoline): New variable.
	* (nds32_elf_create_output_section_statements): Updated.
	* (nds32_elf_after_parse): Disable relaxations when PIC is enable.
	* (PARSE_AND_LIST_PROLOGUE, PARSE_AND_LIST_OPTIONS,
	PARSE_AND_LIST_ARGS_CASES): Add new option --m[no-]tlsdesc-trampoline.

include	* elf/nds32.h: Remove the unused target features.
	* dis-asm.h (disassemble_init_nds32): Declared.
	* elf/nds32.h (E_NDS32_NULL): Removed.
	(E_NDS32_HAS_DSP_INST, E_NDS32_HAS_ZOL): New.
	* opcode/nds32.h: Ident.
	(N32_SUB6, INSN_LW): New macros.
	(enum n32_opcodes): Updated.
	* elf/nds32.h: Doc fixes.
	* elf/nds32.h: Add R_NDS32_LSI.
	* elf/nds32.h: Add new relocations for TLS.

gas 	* config/tc-nds32.c: Remove the unused target features.
	(nds32_relax_relocs, md_pseudo_table, nds32_elf_record_fixup_exp,
	nds32_set_elf_flags_by_insn, nds32_insert_relax_entry,
	nds32_apply_fix): Likewise.
	(nds32_no_ex9_begin): Removed.
	* config/tc-nds32.c (add_mapping_symbol_for_align,
	make_mapping_symbol, add_mapping_symbol): New functions.
	* config/tc-nds32.h (enum mstate): New.
	(nds32_segment_info_type): Likewise.
	* configure.ac (--enable-dsp-ext, --enable-zol-ext): New options.
	* config.in: Regenerated.
	* configure: Regenerated.
	* config/tc-nds32.c (nds32_dx_regs):
	Set the value according to the configuration.
	(nds32_perf_ext, nds32_perf_ext2, nds32_string_ext, nds32_audio_ext):
	Likewise.
	(nds32_dsp_ext): New variable. Set the value according to the
	configuration.
	(nds32_zol_ext): Likewise.
	(asm_desc, nds32_pseudo_opcode_table): Make them static.
	(nds32_set_elf_flags_by_insn): Updated.
	(nds32_check_insn_available): Updated.
	(nds32_str_tolower): New function.
	* config/tc-nds32.c (relax_table): Updated.
	(md_begin): Updated.
	(md_assemble): Use XNEW macro to allocate space for `insn.info',
	and then remember to free it.
	(md_section_align): Cast (-1) to ValueT.
	(nds32_get_align): Cast (~0U) to addressT.
	(nds32_relax_branch_instructions): Updated.
	(md_convert_frag): Add new local variable `final_r_type'.
	(invalid_prev_frag): Add new bfd_boolean parameter `relax'.
	All callers changed.
	* config/tc-nds32.c (struct nds32_relocs_pattern): Add `insn' field.
	(struct nds32_hint_map): Add `option_list' field.
	(struct suffix_name, suffix_table): Remove the unused `pic' field.
	(do_pseudo_b, do_pseudo_bal): Remove the suffix checking.
	(do_pseudo_la_internal, do_pseudo_pushpopm): Indent.
	(relax_hint_bias, relax_hint_id_current): New static variables.
	(reset_bias, relax_hint_begin): New variables.
	(nds_itoa): New function.
	(CLEAN_REG, GET_OPCODE): New macros.
	(struct relax_hint_id): New.
	(nds32_relax_hint): For .relax_hint directive, we can use `begin'
	and `end' to mark the relax pattern without giving exactly id number.
	(nds32_elf_append_relax_relocs): Handle the case that the .relax_hint
	directives are attached to pseudo instruction.
	(nds32_elf_save_pseudo_pattern): Change the second parameter from
	instruction's opcode to byte code.
	(nds32_elf_build_relax_relation): Add new bfd_boolean parameter
	`pseudo_hint'.
	(nds32_lookup_pseudo_opcode): Fix the overflow issue.
	(enum nds32_insn_type): Add N32_RELAX_ALU1 and N32_RELAX_16BIT.
	(nds32_elf_record_fixup_exp, relax_ls_table, hint_map,
	nds32_find_reloc_table, nds32_match_hint_insn, nds32_parse_name):
	Updated.
	* config/tc-nds32.h (MAX_RELAX_NUM): Extend it to 6.
	(enum nds32_relax_hint_type): Merge NDS32_RELAX_HINT_LA and
	NDS32_RELAX_HINT_LS into NDS32_RELAX_HINT_LALS. Add
	NDS32_RELAX_HINT_LA_PLT, NDS32_RELAX_HINT_LA_GOT and
	NDS32_RELAX_HINT_LA_GOTOFF.
	* config/tc-nds32.h (relax_ls_table): Add floating load/store
	to gp relax pattern.
	(hint_map, nds32_find_reloc_table): Likewise.
	* configure.ac: Define NDS32_LINUX_TOOLCHAIN.
	* configure: Regenerated.
	* config.in: Regenerated.
	* config/tc-nds32.h (enum nds32_ramp): Updated.
	(enum nds32_relax_hint_type): Likewise.
	* config/tc-nds32.c: Include "errno.h" and "limits.h".
	(relax_ls_table): Add TLS relax patterns.
	(nds32_elf_append_relax_relocs): Attach BFD_RELOC_NDS32_GROUP on
	each instructions of TLS patterns.
	(nds32_elf_record_fixup_exp): Updated.
	(nds32_apply_fix): Likewise.
	(suffix_table): Add TLSDESC suffix.

binutils* testsuite/binutils-all/objcopy.exp: Set the unsupported reloc number
	from 215 to 255 for NDS32.

bfd	* elf32-nds32.c (nds32_elf_relax_loadstore):
	Remove the unused target features.
	(bfd_elf32_nds32_set_target_option): Remove the unused parameters.
	(nds32_elf_relax_piclo12, nds32_elf_relax_letlslo12,
	nds32_elf_relax_letlsadd, nds32_elf_relax_letlsls,
	nds32_elf_relax_pltgot_suff, nds32_elf_relax_got_suff
	nds32_elf_relax_gotoff_suff, calculate_plt_memory_address,
	calculate_plt_offset, calculate_got_memory_address,
	nds32_elf_check_dup_relocs): Removed.
	All callers changed.
	* elf32-nds32.h: Remove the unused macros and defines.
	(elf_nds32_link_hash_table): Remove the unused variable.
	(bfd_elf32_nds32_set_target_option): Update prototype.
	(nds32_elf_ex9_init): Removed.
	* elf32-nds32.c (nds32_convert_32_to_16): Updated.
	* elf32-nds32.c (HOWTO2, HOWTO3): Define new HOWTO macros
	to initialize array nds32_elf_howto_table in any order
	without lots of EMPTY_HOWTO.
	(nds32_reloc_map): Updated.
	* reloc.c: Add BFD_RELOC_NDS32_LSI.
	* bfd-in2.h: Regenerated.
	* bfd/libbfd.h: Regenerated.
	* elf32-nds32.c (nds32_elf_relax_howto_table): Add R_NDS32_LSI.
	(nds32_reloc_map): Likewise.
	(nds32_elf_relax_flsi): New function.
	(nds32_elf_relax_section): Support floating load/store relaxation.
	* elf32-nds32.c (NDS32_GUARD_SEC_P, elf32_nds32_local_gp_offset):
	New macro.
	(struct elf_nds32_link_hash_entry): New `offset_to_gp' field.
	(struct elf_nds32_obj_tdata): New `offset_to_gp' and `hdr_size' fields.
	(elf32_nds32_allocate_local_sym_info, nds32_elf_relax_guard,
	nds32_elf_is_target_special_symbol, nds32_elf_maybe_function_sym):
	New functions.
	(nds32_info_to_howto_rel): Add BFD_ASSERT.
	(bfd_elf32_bfd_reloc_type_table_lookup, nds32_elf_link_hash_newfunc,
	nds32_elf_link_hash_table_create, nds32_elf_relocate_section,
	nds32_elf_relax_loadstore, nds32_elf_relax_lo12, nds32_relax_adjust_label,
	bfd_elf32_nds32_set_target_option, nds32_fag_mark_relax): Updated.
	(nds32_elf_final_sda_base): Improve it to find the better gp value.
	(insert_nds32_elf_blank): Must consider `len' when inserting blanks.
	* elf32-nds32.h (bfd_elf32_nds32_set_target_option): Update prototype.
	(struct elf_nds32_link_hash_table): Add new variable `hyper_relax'.
	* elf32-nds32.c (elf32_nds32_allocate_dynrelocs): New function.
	(create_got_section): Likewise.
	(allocate_dynrelocs, nds32_elf_size_dynamic_sections,
	nds32_elf_relocate_section, nds32_elf_finish_dynamic_symbol): Updated.
	(nds32_elf_check_relocs): Fix the issue that the shared library may
	has TEXTREL entry in the dynamic section.
	(nds32_elf_create_dynamic_sections): Enable to call readonly_dynrelocs
	since the TEXTREL issue is fixed in the nds32_elf_check_relocs.
	(nds32_elf_finish_dynamic_sections): Update and add DT_RELASZ
	dynamic entry.
	(calculate_offset): Remove the unused parameter `pic_ext_target' and
	related codes.
	All callers changed.
	(elf_backend_dtrel_excludes_plt): Disable it temporarily since it
	will cause some errors for our test cases.
	* elf32-nds32.c (nds32_elf_merge_private_bfd_data): Allow to link the
	generic object.
	* reloc.c: Add TLS relocations.
	* libbfd.h: Regenerated.
	* bfd-in2.h: Regenerated.
	* elf32-nds32.h (struct section_id_list_t): New.
	(elf32_nds32_lookup_section_id, elf32_nds32_check_relax_group,
	elf32_nds32_unify_relax_group, nds32_elf_unify_tls_model):
	New prototypes.
	(elf32_nds32_compute_jump_table_size, elf32_nds32_local_tlsdesc_gotent):
	New macro.
	(nds32_insertion_sort, bfd_elf32_nds32_set_target_option,
	elf_nds32_link_hash_table): Updated.
	* elf32-nds32.c (enum elf_nds32_tls_type): New.
	(struct elf32_nds32_relax_group_t, struct relax_group_list_t): New.
	(elf32_nds32_add_dynreloc, patch_tls_desc_to_ie, get_tls_type,
	fls, ones32, list_insert, list_insert_sibling, dump_chain,
	elf32_nds32_check_relax_group, elf32_nds32_lookup_section_id,
	elf32_nds32_unify_relax_group, nds32_elf_unify_tls_model): New functions.
	(elf_nds32_obj_tdata): Add new fields.
	(elf32_nds32_relax_group_ptr, nds32_elf_local_tlsdesc_gotent): New macros.
	(nds32_elf_howto_table): Add TLS relocations.
	(nds32_reloc_map): Likewise.
	(nds32_elf_copy_indirect_symbol, nds32_elf_size_dynamic_sections,
	nds32_elf_finish_dynamic_symbol, elf32_nds32_allocate_local_sym_info,
	nds32_elf_relocate_section, bfd_elf32_nds32_set_target_option,
	nds32_elf_check_relocs, allocate_dynrelocs): Updated.
	(nds32_elf_relax_section): Call nds32_elf_unify_tls_model.
	(dtpoff_base): Rename it to `gottpof' and then update it.

opcodes	* nds32-asm.c (operand_fields): Remove the unused fields.
	(nds32_opcodes): Remove the unused instructions.
	* nds32-dis.c (nds32_ex9_info): Removed.
	(nds32_parse_opcode): Updated.
	(print_insn_nds32): Likewise.
	* nds32-asm.c (config.h, stdlib.h, string.h): New includes.
	(LEX_SET_FIELD, LEX_GET_FIELD): Update defines.
	(nds32_asm_init, build_operand_hash_table, build_keyword_hash_table,
	build_opcode_hash_table): New functions.
	(nds32_keyword_table, nds32_keyword_count_table, nds32_field_table,
	nds32_opcode_table): New.
	(hw_ktabs): Declare it to a pointer rather than an array.
	(build_hash_table): Removed.
	* nds32-asm.h (enum): Add SYN_INPUT, SYN_OUTPUT, SYN_LOPT,
	SYN_ROPT and upadte HW_GPR and HW_INT.
	* nds32-dis.c (keywords): Remove const.
	(match_field): New function.
	(nds32_parse_opcode): Updated.
	* disassemble.c (disassemble_init_for_target):
	Add disassemble_init_nds32.
	* nds32-dis.c (eum map_type): New.
	(nds32_private_data): Likewise.
	(get_mapping_symbol_type, is_mapping_symbol, nds32_symbol_is_valid,
	nds32_add_opcode_hash_table, disassemble_init_nds32): New functions.
	(print_insn_nds32): Updated.
	* nds32-asm.c (parse_aext_reg): Add new parameter.
	(parse_re, parse_re2, parse_aext_reg): Only reduced registers
	are allowed to use.
	All callers changed.
	* nds32-asm.c (keyword_usr, keyword_sr): Updated.
	(operand_fields): Add new fields.
	(nds32_opcodes): Add new instructions.
	(keyword_aridxi_mx): New keyword.
	* nds32-asm.h (enum): Add NASM_ATTR_DSP_ISAEXT, HW_AEXT_ARIDXI_MX
	and NASM_ATTR_ZOL.
	(ALU2_1, ALU2_2, ALU2_3): New macros.
	* nds32-dis.c (nds32_filter_unknown_insn): Updated.

1 files changed, 392 insertions, 134 deletions

diff --git a/opcodes/nds32-dis.c b/opcodes/nds32-dis.c
index 418019a..81ae124 100644
--- a/opcodes/nds32-dis.c
+++ b/opcodes/nds32-dis.c
@@ -35,16 +35,42 @@
 /* Get fields macro define.  */
 #define MASK_OP(insn, mask)	((insn) & (0x3f << 25 | (mask)))
 
+/* For mapping symbol.  */
+enum map_type
+{
+  MAP_DATA0,
+  MAP_DATA1,
+  MAP_DATA2,
+  MAP_DATA3,
+  MAP_DATA4,
+  MAP_CODE,
+};
+
+struct nds32_private_data
+{
+  /* Whether any mapping symbols are present in the provided symbol
+     table.  -1 if we do not know yet, otherwise 0 or 1.  */
+  int has_mapping_symbols;
+
+  /* Track the last type (although this doesn't seem to be useful).  */
+  enum map_type last_mapping_type;
+
+  /* Tracking symbol table information.  */
+  int last_symbol_index;
+  bfd_vma last_addr;
+};
+
 /* Default text to print if an instruction isn't recognized.  */
 #define UNKNOWN_INSN_MSG _("*unknown*")
 #define NDS32_PARSE_INSN16      0x01
 #define NDS32_PARSE_INSN32      0x02
-#define NDS32_PARSE_EX9IT       0x04
-#define NDS32_PARSE_EX9TAB      0x08
 
+extern const field_t *nds32_field_table[NDS32_CORE_COUNT];
+extern opcode_t *nds32_opcode_table[NDS32_CORE_COUNT];
+extern keyword_t **nds32_keyword_table[NDS32_CORE_COUNT];
 extern struct nds32_opcode nds32_opcodes[];
 extern const field_t operand_fields[];
-extern const keyword_t *keywords[];
+extern keyword_t *keywords[];
 extern const keyword_t keyword_gpr[];
 static void print_insn16 (bfd_vma pc, disassemble_info *info,
 			  uint32_t insn, uint32_t parse_mode);
@@ -52,6 +78,10 @@ static void print_insn32 (bfd_vma pc, disassemble_info *info, uint32_t insn,
 			  uint32_t parse_mode);
 static uint32_t nds32_mask_opcode (uint32_t);
 static void nds32_special_opcode (uint32_t, struct nds32_opcode **);
+static int get_mapping_symbol_type (struct disassemble_info *, int,
+				    enum map_type *);
+static int is_mapping_symbol (struct disassemble_info *, int,
+			      enum map_type *);
 
 /* define in objdump.c.  */
 struct objdump_disasm_info
@@ -65,62 +95,10 @@ struct objdump_disasm_info
   arelent *          reloc;
 };
 
-/* file_ptr    ex9_filepos=NULL;.  */
-bfd_byte *ex9_data = NULL;
-int ex9_ready = 0, ex9_base_offset = 0;
-
 /* Hash function for disassemble.  */
 
 static htab_t opcode_htab;
 
-static void
-nds32_ex9_info (bfd_vma pc ATTRIBUTE_UNUSED,
-		disassemble_info *info, uint32_t ex9_index)
-{
-  uint32_t insn;
-  static asymbol *itb = NULL;
-  bfd_byte buffer[4];
-  long unsigned int isec_vma;
-
-  /* Lookup itb symbol.  */
-  if (!itb)
-    {
-      int i;
-
-      for (i = 0; i < info->symtab_size; i++)
-	if (bfd_asymbol_name (info->symtab[i])
-	    && (strcmp (bfd_asymbol_name (info->symtab[i]), "$_ITB_BASE_") == 0
-		|| strcmp (bfd_asymbol_name (info->symtab[i]),
-			   "_ITB_BASE_") == 0))
-	  {
-	    itb = info->symtab[i];
-	    break;
-	  }
-
-      /* Lookup it only once, in case _ITB_BASE_ doesn't exist at all.  */
-      if (itb == NULL)
-	itb = (void *) -1;
-    }
-
-  if (itb == (void *) -1)
-    return;
-
-  isec_vma = itb->section->vma;
-  isec_vma = itb->section->vma - bfd_asymbol_value (itb);
-  if (!itb->section || !itb->section->owner)
-    return;
-  bfd_get_section_contents (itb->section->owner, itb->section, buffer,
-			    ex9_index * 4 - isec_vma, 4);
-  insn = bfd_getb32 (buffer);
-  /* 16-bit instructions in ex9 table.  */
-  if (insn & 0x80000000)
-    print_insn16 (pc, info, (insn & 0x0000FFFF),
-		  NDS32_PARSE_INSN16 | NDS32_PARSE_EX9IT);
-  /* 32-bit instructions in ex9 table.  */
-  else
-    print_insn32 (pc, info, insn, NDS32_PARSE_INSN32 | NDS32_PARSE_EX9IT);
-}
-
 /* Find the value map register name.  */
 
 static keyword_t *
@@ -221,6 +199,30 @@ nds32_parse_audio_ext (const field_t *pfd,
     func (stream, "$%s", psys_reg->name);
 }
 
+/* Match instruction opcode with keyword table.  */
+
+static field_t *
+match_field (char *name)
+{
+  field_t *pfd;
+  int k;
+
+  for (k = 0; k < NDS32_CORE_COUNT; k++)
+    {
+      pfd = (field_t *) nds32_field_table[k];
+      while (1)
+	{
+	  if (pfd->name == NULL)
+	    break;
+	  if (strcmp (name, pfd->name) == 0)
+	    return pfd;
+	  pfd++;
+	}
+    }
+
+  return NULL;
+}
+
 /* Dump instruction.  If the opcode is unknown, return FALSE.  */
 
 static void
@@ -245,9 +247,6 @@ nds32_parse_opcode (struct nds32_opcode *opc, bfd_vma pc ATTRIBUTE_UNUSED,
       return;
     }
 
-  if (parse_mode & NDS32_PARSE_EX9IT)
-    func (stream, "		!");
-
   pstr_src = opc->instruction;
   if (*pstr_src == 0)
     {
@@ -294,15 +293,8 @@ nds32_parse_opcode (struct nds32_opcode *opc, bfd_vma pc ATTRIBUTE_UNUSED,
 	    }
 	  *pstr_tmp = 0;
 
-	  pfd = (const field_t *) &operand_fields[0];
-	  while (1)
-	    {
-	      if (pfd->name == NULL)
-		return;
-	      else if (strcmp (&tmp_string[0], pfd->name) == 0)
-		break;
-	      pfd++;
-	    }
+	  if ((pfd = match_field (&tmp_string[0])) == NULL)
+	    return;
 
 	  /* For insn-16.  */
 	  if (parse_mode & NDS32_PARSE_INSN16)
@@ -348,12 +340,11 @@ nds32_parse_opcode (struct nds32_opcode *opc, bfd_vma pc ATTRIBUTE_UNUSED,
 		      int_value = 0 - (128 - int_value);
 		      func (stream, "#%d", int_value);
 		    }
-		  /* beqz38/bnez38/beqs38/bnes38/j8/beqzs8/bnezs8/ifcall9.  */
+		  /* beqz38/bnez38/beqs38/bnes38/j8/beqzs8/bnezs8.  */
 		  else if ((opc->value == 0xc000) || (opc->value == 0xc800)
 			   || (opc->value == 0xd000) || (opc->value == 0xd800)
 			   || (opc->value == 0xd500) || (opc->value == 0xe800)
-			   || (opc->value == 0xe900)
-			   || (opc->value == 0xf800))
+			   || (opc->value == 0xe900))
 		    {
 		      info->print_address_func (int_value + pc, info);
 		    }
@@ -365,12 +356,6 @@ nds32_parse_opcode (struct nds32_opcode *opc, bfd_vma pc ATTRIBUTE_UNUSED,
 			func (stream, "~$%s", keyword_gpr[push25gpr].name);
 		      func (stream, ", $fp, $gp, $lp}");
 		    }
-		  /* ex9.it.  */
-		  else if ((opc->value == 0xdd40) || (opc->value == 0xea00))
-		    {
-		      func (stream, "#%d", int_value);
-		      nds32_ex9_info (pc, info, int_value);
-		    }
 		  else if (pfd->hw_res == HW_INT)
 		    {
 		      if (int_value < 10)
@@ -394,12 +379,13 @@ nds32_parse_opcode (struct nds32_opcode *opc, bfd_vma pc ATTRIBUTE_UNUSED,
 	      nds32_parse_audio_ext (pfd, info, insn);
 	    }
 	  /* for insn-32.  */
-	  else if (pfd->hw_res < _HW_LAST)
+	  else if (pfd->hw_res < HW_INT)
 	    {
 	      int_value =
 		__GF (insn, pfd->bitpos, pfd->bitsize) << pfd->shift;
 
-	      psys_reg = (keyword_t*) keywords[pfd->hw_res];
+	      psys_reg = *(nds32_keyword_table[pfd->hw_res >> 8]
+			   + (pfd->hw_res & 0xff));
 
 	      psys_reg = nds32_find_reg_keyword (psys_reg, int_value);
 	      /* For HW_SR, dump the index when it can't
@@ -444,15 +430,7 @@ nds32_parse_opcode (struct nds32_opcode *opc, bfd_vma pc ATTRIBUTE_UNUSED,
 		  /* FIXME: Handle relocation.  */
 		  if (info->flags & INSN_HAS_RELOC)
 		    pc = 0;
-		  /* Check if insn32 in ex9 table.  */
-		  if (parse_mode & NDS32_PARSE_EX9IT)
-		    info->print_address_func ((pc & 0xFE000000) | int_value,
-					      info);
-		  /* Check if decode ex9 table,  PC(31,25)|Inst(23,0)<<1.  */
-		  else if (parse_mode & NDS32_PARSE_EX9TAB)
-		    func (stream, "PC(31,25)|#0x%x", int_value);
-		  else
-		    info->print_address_func (int_value + pc, info);
+		  info->print_address_func (int_value + pc, info);
 		}
 	      else if (op == N32_OP6_LSMW)
 		{
@@ -571,7 +549,7 @@ nds32_filter_unknown_insn (uint32_t insn, struct nds32_opcode **opc)
       if (__GF (insn, 5, 5) != 0)
         *opc = NULL;
       break;
-    case BR2 (IFCALL):
+    case BR2 (SOP0):
       if (__GF (insn, 20, 5) != 0)
         *opc = NULL;
       break;
@@ -765,7 +743,14 @@ nds32_mask_opcode (uint32_t insn)
 	       || __GF (insn, 0, 7) == (N32_ALU2_MTUSR | N32_BIT (6)))
 	/* RDOV CLROV */
 	return MASK_OP (insn, 0xf81ff);
-      return MASK_OP (insn, 0x1ff);
+      else if (__GF (insn, 0, 10) == (N32_ALU2_ONEOP | N32_BIT (7)))
+	{
+	  /* INSB */
+	  if (__GF (insn, 12, 3) == 4)
+	    return MASK_OP (insn, 0x73ff);
+	  return MASK_OP (insn, 0x7fff);
+	}
+      return MASK_OP (insn, 0x3ff);
     case N32_OP6_ALU1:
     case N32_OP6_SIMD:
       return MASK_OP (insn, 0x1f);
@@ -794,7 +779,10 @@ nds32_mask_opcode (uint32_t insn)
     case N32_OP6_BR1:
       return MASK_OP (insn, 0x1 << 14);
     case N32_OP6_BR2:
-      return MASK_OP (insn, 0xf << 16);
+      if (__GF (insn, 16, 4) == 0)
+	return MASK_OP (insn, 0x1ff << 16);
+      else
+	return MASK_OP (insn, 0xf << 16);
     case N32_OP6_BR3:
       return MASK_OP (insn, 0x1 << 19);
     case N32_OP6_MISC:
@@ -887,7 +875,8 @@ nds32_mask_opcode (uint32_t insn)
 	    /* AMAWzSSA AMWzSSA */
 	    return MASK_OP (insn, (0x1f << 20) | (0x3 << 7));
 	  else
-	    /* AMAWzSL.L AMAWzSL2.S AMAWzSL2.L AMWzSL.L AMWzSL.L AMWzSL2.S */
+	    /* AMAWzSL.L AMAWzSL2.S AMAWzSL2.L
+	       AMWzSL.L AMWzSL.L AMWzSL2.S */
 	    return MASK_OP (insn, (0x1f << 20) | (0x7 << 6));
 	case 0x2:
 	  if (__GF (insn, 6, 3) == 2)
@@ -897,7 +886,8 @@ nds32_mask_opcode (uint32_t insn)
 	    /* AMAWyySSA AMWyySSA */
 	    return MASK_OP (insn, (0x1f << 20) | (0x3 << 7));
 	  else
-	    /* AMAWyySL.L AMAWyySL2.S AMAWyySL2.L AMWyySL.L AMWyySL.L AMWyySL2.S */
+	    /* AMAWyySL.L AMAWyySL2.S AMAWyySL2.L
+	       AMWyySL.L AMWyySL.L AMWyySL2.S */
 	    return MASK_OP (insn, (0x1f << 20) | (0x7 << 6));
 	}
       return MASK_OP (insn, 0x1f << 20);
@@ -968,13 +958,8 @@ nds32_special_opcode (uint32_t insn, struct nds32_opcode **opc)
     case JREG (JR) | JREG_RET:
       if (__GF (insn, 8, 2) != 0)
 	string = "tit";
-    break;
+      break;
     case N32_OP6_COP:
-    break;
-    case 0xea00:
-      /* break16 ex9 */
-      if (__GF (insn, 5, 4) != 0)
-	string = "ex9";
       break;
     case 0x9200:
       /* nop16 */
@@ -1005,46 +990,187 @@ print_insn_nds32 (bfd_vma pc, disassemble_info *info)
 {
   int status;
   bfd_byte buf[4];
+  bfd_byte buf_data[16];
+  long long given;
+  long long given1;
   uint32_t insn;
-  static int init = 1;
-  int i = 0;
-  struct nds32_opcode *opc;
-  struct nds32_opcode **slot;
+  int n;
+  int last_symbol_index = -1;
+  bfd_vma addr;
+  int is_data = FALSE;
+  bfd_boolean found = FALSE;
+  struct nds32_private_data *private_data;
+  unsigned int size = 16;
+  enum map_type mapping_type = MAP_CODE;
+
+  if (info->private_data == NULL)
+    {
+      /* Note: remain lifecycle throughout whole execution.  */
+      static struct nds32_private_data private;
+      private.has_mapping_symbols = -1;	/* unknown yet.  */
+      private.last_symbol_index = -1;
+      private.last_addr = 0;
+      info->private_data = &private;
+    }
+  private_data = info->private_data;
 
-  if (init)
+  if (info->symtab_size != 0)
     {
-      /* Build opcode table.  */
-      opcode_htab = htab_create_alloc (1024, htab_hash_hash, htab_hash_eq,
-				       NULL, xcalloc, free);
+      int start;
+      if (pc == 0)
+	start = 0;
+      else
+	{
+	  start = info->symtab_pos;
+	  if (start < private_data->last_symbol_index)
+	    start = private_data->last_symbol_index;
+	}
+
+      if (0 > start)
+	start = 0;
 
-      while (nds32_opcodes[i].opcode != NULL)
+      if (private_data->has_mapping_symbols != 0
+	  && ((strncmp (".text", info->section->name, 5) == 0)))
 	{
-	  opc = &nds32_opcodes[i];
-	  slot =
-	    (struct nds32_opcode **) htab_find_slot (opcode_htab, &opc->value,
-						     INSERT);
-	  if (*slot == NULL)
+	  for (n = start; n < info->symtab_size; n++)
 	    {
-	      /* This is the new one.  */
-	      *slot = opc;
+	      addr = bfd_asymbol_value (info->symtab[n]);
+	      if (addr > pc)
+		break;
+	      if (get_mapping_symbol_type (info, n, &mapping_type))
+		{
+		  last_symbol_index = n;
+		  found = TRUE;
+		}
 	    }
-	  else
+
+	  if (found)
+	    private_data->has_mapping_symbols = 1;
+	  else if (!found && private_data->has_mapping_symbols == -1)
+	    {
+	      /* Make sure there are no any mapping symbol.  */
+	      for (n = 0; n < info->symtab_size; n++)
+		{
+		  if (is_mapping_symbol (info, n, &mapping_type))
+		    {
+		      private_data->has_mapping_symbols = -1;
+		      break;
+		    }
+		}
+	      if (private_data->has_mapping_symbols == -1)
+		private_data->has_mapping_symbols = 0;
+	    }
+
+	  private_data->last_symbol_index = last_symbol_index;
+	  private_data->last_mapping_type = mapping_type;
+	  is_data = (private_data->last_mapping_type == MAP_DATA0
+		     || private_data->last_mapping_type == MAP_DATA1
+		     || private_data->last_mapping_type == MAP_DATA2
+		     || private_data->last_mapping_type == MAP_DATA3
+		     || private_data->last_mapping_type == MAP_DATA4);
+	}
+    }
+
+  /* Wonder data or instruction.  */
+  if (is_data)
+    {
+      unsigned int i1;
+
+      /* Fix corner case: there is no next mapping symbol,
+	 let mapping type decides size */
+      if (last_symbol_index + 1 >= info->symtab_size)
+	{
+	  if (mapping_type == MAP_DATA0)
+	    size = 1;
+	  if (mapping_type == MAP_DATA1)
+	    size = 2;
+	  if (mapping_type == MAP_DATA2)
+	    size = 4;
+	  if (mapping_type == MAP_DATA3)
+	    size = 8;
+	  if (mapping_type == MAP_DATA4)
+	    size = 16;
+	}
+      for (n = last_symbol_index + 1; n < info->symtab_size; n++)
+	{
+	  addr = bfd_asymbol_value (info->symtab[n]);
+
+	  enum map_type fake_mapping_type;
+	  if (get_mapping_symbol_type (info, n, &fake_mapping_type)
+	      && (addr > pc
+		  && ((info->section == NULL)
+		      || (info->section == info->symtab[n]->section)))
+	      && (addr - pc < size))
+	    {
+	      size = addr - pc;
+	      break;
+	    }
+	}
+
+      if (size == 3)
+	size = (pc & 1) ? 1 : 2;
+
+      /* Read bytes from BFD.  */
+      info->read_memory_func (pc, (bfd_byte *) buf_data, size, info);
+      given = 0;
+      given1 = 0;
+      /* Start assembling data.  */
+      /* Little endian of data.  */
+      if (info->endian == BFD_ENDIAN_LITTLE)
+	{
+	  for (i1 = size - 1;; i1--)
 	    {
-	      /* Already exists.  Append to the list.  */
-	      opc = *slot;
-	      while (opc->next)
-		opc = opc->next;
-	      opc->next = &nds32_opcodes[i];
+	      if (i1 >= 8)
+		given1 = buf_data[i1] | (given1 << 8);
+	      else
+		given = buf_data[i1] | (given << 8);
+
+	      if (i1 == 0)
+		break;
 	    }
-	  i++;
 	}
-      init = 0;
+      else
+	{
+	  /* Big endian of data.  */
+	  for (i1 = 0; i1 < size; i1++)
+	    {
+	      if (i1 <= 7)
+		given = buf_data[i1] | (given << 8);
+	      else
+		given1 = buf_data[i1] | (given1 << 8);
+	    }
+	}
+
+      info->bytes_per_line = 4;
+
+      if (size == 16)
+	info->fprintf_func (info->stream, ".qword\t0x%016llx%016llx",
+			    given, given1);
+      else if (size == 8)
+	info->fprintf_func (info->stream, ".dword\t0x%016llx", given);
+      else if (size == 4)
+	info->fprintf_func (info->stream, ".word\t0x%08llx", given);
+      else if (size == 2)
+	{
+	  /* short */
+	  if (mapping_type == MAP_DATA0)
+	    info->fprintf_func (info->stream, ".byte\t0x%02llx", given & 0xFF);
+	  else
+	    info->fprintf_func (info->stream, ".short\t0x%04llx", given);
+	}
+      else
+	{
+	  /* byte */
+	  info->fprintf_func (info->stream, ".byte\t0x%02llx", given);
+	}
+
+      return size;
     }
 
   status = info->read_memory_func (pc, (bfd_byte *) buf, 4, info);
   if (status)
     {
-      /* for the last 16-bit instruction.  */
+      /* For the last 16-bit instruction.  */
       status = info->read_memory_func (pc, (bfd_byte *) buf, 2, info);
       if (status)
 	{
@@ -1057,12 +1183,6 @@ print_insn_nds32 (bfd_vma pc, disassemble_info *info)
   /* 16-bit instruction.  */
   if (insn & 0x80000000)
     {
-      if (info->section && strstr (info->section->name, ".ex9.itable") != NULL)
-	{
-	  print_insn16 (pc, info, (insn & 0x0000FFFF),
-			NDS32_PARSE_INSN16 | NDS32_PARSE_EX9TAB);
-	  return 4;
-	}
       print_insn16 (pc, info, (insn >> 16), NDS32_PARSE_INSN16);
       return 2;
     }
@@ -1070,11 +1190,149 @@ print_insn_nds32 (bfd_vma pc, disassemble_info *info)
   /* 32-bit instructions.  */
   else
     {
-      if (info->section
-	  && strstr (info->section->name, ".ex9.itable") != NULL)
-	print_insn32 (pc, info, insn, NDS32_PARSE_INSN32 | NDS32_PARSE_EX9TAB);
-      else
-	print_insn32 (pc, info, insn, NDS32_PARSE_INSN32);
+      print_insn32 (pc, info, insn, NDS32_PARSE_INSN32);
       return 4;
     }
 }
+
+/* Ignore disassembling unnecessary name.  */
+
+static bfd_boolean
+nds32_symbol_is_valid (asymbol *sym,
+		       struct disassemble_info *info ATTRIBUTE_UNUSED)
+{
+  const char *name;
+
+  if (sym == NULL)
+    return FALSE;
+
+  name = bfd_asymbol_name (sym);
+
+  /* Mapping symbol is invalid.  */
+  if (name[0] == '$')
+    return FALSE;
+  return TRUE;
+}
+
+static void
+nds32_add_opcode_hash_table (unsigned indx)
+{
+  opcode_t *opc;
+
+  opc = nds32_opcode_table[indx];
+  if (opc == NULL)
+    return;
+
+  while (opc->opcode != NULL)
+    {
+      opcode_t **slot;
+
+      slot = (opcode_t **) htab_find_slot
+	(opcode_htab, &opc->value, INSERT);
+      if (*slot == NULL)
+	{
+	  /* This is the new one.  */
+	  *slot = opc;
+	}
+      else
+	{
+	  opcode_t *tmp;
+
+	  /* Already exists.  Append to the list.  */
+	  tmp = *slot;
+	  while (tmp->next)
+	    tmp = tmp->next;
+	  tmp->next = opc;
+	  opc->next = NULL;
+	}
+      opc++;
+    }
+}
+
+void
+disassemble_init_nds32 (struct disassemble_info *info)
+{
+  static unsigned init_done = 0;
+  unsigned k;
+
+  /* Set up symbol checking function.  */
+  info->symbol_is_valid = nds32_symbol_is_valid;
+
+  /* Only need to initialize once:
+     High level will call this function for every object file.
+     For example, when disassemble all members of a library.  */
+  if (init_done)
+    return;
+
+  /* Setup main core.  */
+  nds32_keyword_table[NDS32_MAIN_CORE] = &keywords[0];
+  nds32_opcode_table[NDS32_MAIN_CORE] = &nds32_opcodes[0];
+  nds32_field_table[NDS32_MAIN_CORE] = &operand_fields[0];
+
+  /* Build opcode table.  */
+  opcode_htab = htab_create_alloc (1024, htab_hash_hash, htab_hash_eq,
+				   NULL, xcalloc, free);
+
+  for (k = 0; k < NDS32_CORE_COUNT; k++)
+    {
+      /* Add op-codes.  */
+      nds32_add_opcode_hash_table (k);
+    }
+
+  init_done = 1;
+}
+
+static int
+is_mapping_symbol (struct disassemble_info *info, int n,
+		   enum map_type *map_type)
+{
+  const char *name = NULL;
+
+  /* Get symbol name.  */
+  name = bfd_asymbol_name (info->symtab[n]);
+
+  if (name[1] == 'c')
+    {
+      *map_type = MAP_CODE;
+      return TRUE;
+    }
+  else if (name[1] == 'd' && name[2] == '0')
+    {
+      *map_type = MAP_DATA0;
+      return TRUE;
+    }
+  else if (name[1] == 'd' && name[2] == '1')
+    {
+      *map_type = MAP_DATA1;
+      return TRUE;
+    }
+  else if (name[1] == 'd' && name[2] == '2')
+    {
+      *map_type = MAP_DATA2;
+      return TRUE;
+    }
+  else if (name[1] == 'd' && name[2] == '3')
+    {
+      *map_type = MAP_DATA3;
+      return TRUE;
+    }
+  else if (name[1] == 'd' && name[2] == '4')
+    {
+      *map_type = MAP_DATA4;
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+static int
+get_mapping_symbol_type (struct disassemble_info *info, int n,
+			 enum map_type *map_type)
+{
+  /* If the symbol is in a different section, ignore it.  */
+  if (info->section != NULL
+      && info->section != info->symtab[n]->section)
+    return FALSE;
+
+  return is_mapping_symbol (info, n, map_type);
+}