gas/config/tc-i370.h

   1 /* tc-i370.h -- Header file for tc-i370.c.
   2    Copyright (C) 1994, 95, 96, 97, 98, 2000 Free Software Foundation, Inc.
   3    Written by Ian Lance Taylor, Cygnus Support.
   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 2, 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, 59 Temple Place - Suite 330, Boston, MA
  20    02111-1307, USA. */
  21
  22 #define TC_I370
  23
  24 #ifdef ANSI_PROTOTYPES
  25 struct fix;
  26 #endif
  27
  28 /* Set the endianness we are using.  Default to big endian.  */
  29 #ifndef TARGET_BYTES_BIG_ENDIAN
  30 #define TARGET_BYTES_BIG_ENDIAN 1
  31 #endif
  32
  33 #ifndef BFD_ASSEMBLER
  34  #error I370 support requires BFD_ASSEMBLER
  35 #endif
  36
  37 /* The target BFD architecture.  */
  38 #define TARGET_ARCH (i370_arch ())
  39 extern enum bfd_architecture i370_arch PARAMS ((void));
  40
  41 /* Whether or not the target is big endian */
  42 extern int target_big_endian;
  43
  44 /* The target BFD format.  */
  45 #ifdef OBJ_ELF
  46 #define TARGET_FORMAT ("elf32-i370")
  47 #endif
  48
  49 /* Permit temporary numeric labels.  */
  50 #define LOCAL_LABELS_FB 1
  51
  52 /* $ is used to refer to the current location.  */
  53 /* #define DOLLAR_DOT */
  54
  55 #ifdef OBJ_ELF
  56 #define DIFF_EXPR_OK            /* foo-. gets turned into PC relative relocs */
  57 #endif
  58
  59 /* We don't need to handle .word strangely.  */
  60 #define WORKING_DOT_WORD
  61
  62 /* We set the fx_done field appropriately in md_apply_fix.  */
  63 #define TC_HANDLES_FX_DONE
  64 \f
  65
  66 #ifdef OBJ_ELF
  67
  68 /* Branch prediction relocations must force relocation.  */
  69 #define TC_FORCE_RELOCATION_SECTION(FIXP,SEC) 1
  70
  71 /* Support for SHF_EXCLUDE and SHT_ORDERED */
  72 extern int i370_section_letter PARAMS ((int, char **));
  73 extern int i370_section_type PARAMS ((char *, size_t));
  74 extern int i370_section_word PARAMS ((char *, size_t));
  75 extern int i370_section_flags PARAMS ((int, int, int));
  76
  77 #define md_elf_section_letter(LETTER, PTR_MSG)  i370_section_letter (LETTER, PTR_MSG)
  78 #define md_elf_section_type(STR, LEN)           i370_section_type (STR, LEN)
  79 #define md_elf_section_word(STR, LEN)           i370_section_word (STR, LEN)
  80 #define md_elf_section_flags(FLAGS, ATTR, TYPE) i370_section_flags (FLAGS, ATTR, TYPE)
  81
  82 #define tc_comment_chars i370_comment_chars
  83 extern const char *i370_comment_chars;
  84
  85 /* We must never ever try to resolve references to externally visible
  86    symbols in the assembler, because the .o file might go into a shared
  87    library, and some other shared library might override that symbol.  */
  88 #define TC_RELOC_RTSYM_LOC_FIXUP(FIX)  \
  89   ((FIX)->fx_addsy == NULL \
  90    || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
  91        && ! S_IS_WEAK ((FIX)->fx_addsy) \
  92        && S_IS_DEFINED ((FIX)->fx_addsy) \
  93        && ! S_IS_COMMON ((FIX)->fx_addsy)))
  94
  95 #endif /* OBJ_ELF */
  96
  97 /* call md_apply_fix3 with segment instead of md_apply_fix */
  98 #define MD_APPLY_FIX3
  99
 100 /* call md_pcrel_from_section, not md_pcrel_from */
 101 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section(FIXP, SEC)
 102 extern long md_pcrel_from_section PARAMS ((struct fix *, segT));
 103
 104 #define md_operand(x)