1  /* tc-microblaze.h -- Header file for tc-microblaze.c.
       2  
       3     Copyright (C) 2009-2023 Free Software Foundation, Inc.
       4  
       5     This file is part of GAS, the GNU Assembler.
       6  
       7     GAS is free software; you can redistribute it and/or modify
       8     it under the terms of the GNU General Public License as published by
       9     the Free Software Foundation; either version 3, or (at your option)
      10     any later version.
      11  
      12     GAS is distributed in the hope that it will be useful,
      13     but WITHOUT ANY WARRANTY; without even the implied warranty of
      14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      15     GNU General Public License for more details.
      16  
      17     You should have received a copy of the GNU General Public License
      18     along with GAS; see the file COPYING.  If not, write to the Free
      19     Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
      20     02110-1301, USA.  */
      21  
      22  #ifndef	TC_MICROBLAZE
      23  #define TC_MICROBLAZE 1
      24  
      25  #define TARGET_ARCH	bfd_arch_microblaze
      26  #ifndef TARGET_BYTES_BIG_ENDIAN
      27  /* Used to initialise target_big_endian.  */
      28  #define TARGET_BYTES_BIG_ENDIAN 1
      29  #endif
      30  
      31  #define IGNORE_NONSTANDARD_ESCAPES
      32  
      33  #define TC_RELOC_MANGLE(a,b,c) tc_reloc_mangle (a, b, c)
      34  
      35  /* We need to handle expressions of type "symbol op symbol" and create
      36     relocs for such expressions as -relax in linker can change the value
      37     of such expressions */
      38  #define TC_CONS_FIX_NEW cons_fix_new_microblaze
      39  #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) \
      40    parse_cons_expression_microblaze (EXP, NBYTES)
      41  extern bfd_reloc_code_real_type parse_cons_expression_microblaze
      42    (expressionS *, int);
      43  
      44  #define TC_FORCE_RELOCATION_SECTION(FIXP,SEG) 1
      45  #define UNDEFINED_DIFFERENCE_OK 1
      46  
      47  #define TC_FORCE_RELOCATION_LOCAL(FIX)				\
      48    (GENERIC_FORCE_RELOCATION_LOCAL (FIX)				\
      49     || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOT		\
      50     || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_PLT		\
      51     || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOTOFF	\
      52     || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_32_GOTOFF)
      53  
      54  #define TC_VALIDATE_FIX_SUB(FIX, SEG) \
      55    (md_register_arithmetic || (SEG) != reg_section)
      56  
      57  #define tc_fix_adjustable(X)  tc_microblaze_fix_adjustable(X)
      58  extern int tc_microblaze_fix_adjustable (struct fix *);
      59  
      60  extern const struct relax_type md_relax_table[];
      61  #define TC_GENERIC_RELAX_TABLE md_relax_table
      62  
      63  /* We don't need to handle .word strangely.  */
      64  #define WORKING_DOT_WORD
      65  
      66  #define LISTING_HEADER        	"Xilinx MicroBlaze GAS Listing"
      67  #define LISTING_LHS_CONT_LINES	4
      68  
      69  #define NEED_FX_R_TYPE	1
      70  
      71  /* We want local label support.  */
      72  #define LOCAL_LABELS_FB 1
      73  
      74  /* Want the section information too... */
      75  #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
      76  
      77  #define MD_APPLY_FIX3  /* We want the segment as well.  */
      78  
      79  /* We set the fx_done field appropriately in md_apply_fix.  */
      80  #define TC_HANDLES_FX_DONE
      81  
      82  #ifdef OBJ_ELF
      83  
      84  #define TARGET_FORMAT (target_big_endian ? "elf32-microblaze" : "elf32-microblazeel")
      85  
      86  #define ELF_TC_SPECIAL_SECTIONS \
      87    { ".sdata",		SHT_PROGBITS,	SHF_ALLOC + SHF_WRITE }, \
      88    { ".sbss",		SHT_NOBITS,	SHF_ALLOC + SHF_WRITE }, \
      89    { ".sdata2",		SHT_PROGBITS,	SHF_ALLOC }, \
      90    { ".sbss2",		SHT_PROGBITS,	SHF_ALLOC }, \
      91  /* Other special sections not generated by the assembler: .reginfo,
      92     .liblist, .conflict, .gptab, .got, .dynamic, .rel.dyn.  */
      93  
      94  #endif /* OBJ_ELF */
      95  
      96  #ifndef TARGET_FORMAT
      97  # error No target format specified.
      98  #endif
      99  
     100  extern void 	 cons_fix_new_microblaze       (fragS *, int, int,
     101  						expressionS *,
     102  						bfd_reloc_code_real_type);
     103  #define EXTERN_FORCE_RELOC -1
     104  
     105  #endif /* TC_MICROBLAZE */