gas/config/tc-microblaze.h

   1 /* tc-microblaze.h -- Header file for tc-microblaze.c.
   2
   3    Copyright 2009 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 /* Used to initialise target_big_endian.  */
  27 #define TARGET_BYTES_BIG_ENDIAN 1
  28
  29 #define IGNORE_NONSTANDARD_ESCAPES
  30
  31 #define TC_RELOC_MANGLE(a,b,c) tc_reloc_mangle (a, b, c)
  32
  33 /* We need to handle expressions of type "symbol op symbol" and create
  34    relocs for such expressions as -relax in linker can change the value
  35    of such expressions */
  36 #define TC_CONS_FIX_NEW cons_fix_new_microblaze
  37 #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_cons_expression_microblaze (EXP, NBYTES)
  38 extern void parse_cons_expression_microblaze PARAMS ((expressionS *, int));
  39
  40 #define TC_FORCE_RELOCATION_SECTION(FIXP,SEG) 1
  41 #define UNDEFINED_DIFFERENCE_OK 1
  42
  43 #define TC_FORCE_RELOCATION_LOCAL(FIX)  \
  44   (!(FIX)->fx_pcrel                     \
  45    || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOT   \
  46    || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_PLT   \
  47    || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOTOFF        \
  48    || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_32_GOTOFF        \
  49    || TC_FORCE_RELOCATION (FIX))
  50
  51 #define tc_fix_adjustable(X)  tc_microblaze_fix_adjustable(X)
  52 extern int tc_microblaze_fix_adjustable (struct fix *);
  53
  54 extern const struct relax_type md_relax_table[];
  55 #define TC_GENERIC_RELAX_TABLE md_relax_table
  56
  57 /* We don't need to handle .word strangely.  */
  58 #define WORKING_DOT_WORD
  59
  60 #define LISTING_HEADER          "Xilinx MicroBlaze GAS Listing"
  61 #define LISTING_LHS_CONT_LINES  4
  62
  63 #define NEED_FX_R_TYPE  1
  64
  65 /* We want local label support.  */
  66 #define LOCAL_LABELS_FB 1
  67
  68 /* Want the section information too... */
  69 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
  70
  71 #define MD_APPLY_FIX3  /* We want the segment as well.  */
  72
  73 /* We set the fx_done field appropriately in md_apply_fix.  */
  74 #define TC_HANDLES_FX_DONE
  75
  76 #ifdef OBJ_ELF
  77
  78 #define TARGET_FORMAT (target_big_endian ? "elf32-microblaze" : "elf32-microblaze-little")
  79
  80 #define ELF_TC_SPECIAL_SECTIONS \
  81   { ".sdata",           SHT_PROGBITS,   SHF_ALLOC + SHF_WRITE }, \
  82   { ".sbss",            SHT_NOBITS,     SHF_ALLOC + SHF_WRITE }, \
  83   { ".sdata2",          SHT_PROGBITS,   SHF_ALLOC }, \
  84   { ".sbss2",           SHT_PROGBITS,   SHF_ALLOC }, \
  85 /* Other special sections not generated by the assembler: .reginfo,
  86    .liblist, .conflict, .gptab, .got, .dynamic, .rel.dyn.  */
  87
  88 #endif /* OBJ_ELF */
  89
  90 #ifndef TARGET_FORMAT
  91 # error No target format specified.
  92 #endif
  93
  94 #include "write.h"        /* For definition of fixS */
  95
  96 extern void      md_begin            (void);
  97 extern void      md_assemble         (char *);
  98 extern symbolS * md_undefined_symbol (char *);
  99 extern char *    md_atof             (int, char *, int *);
 100 extern int       md_parse_option     (int, char *);
 101 extern void      md_show_usage       (FILE *);
 102 extern void      md_convert_frag               (bfd *, segT, fragS *);
 103 extern void      md_operand                    (expressionS *);
 104 extern int       md_estimate_size_before_relax (fragS *, segT);
 105 extern void      md_number_to_chars            (char *, valueT, int);
 106 extern valueT    md_section_align              (segT, valueT);
 107 extern long      md_pcrel_from_section         (fixS *, segT);
 108 extern arelent * tc_gen_reloc                  (asection *, fixS *);
 109 extern void      cons_fix_new_microblaze       (fragS *, int, int, expressionS *);
 110 extern void      md_apply_fix3                 (fixS *, valueT *, segT);
 111
 112 #define EXTERN_FORCE_RELOC -1
 113
 114 #endif /* TC_MICROBLAZE */