gas/config/tc-vax.h

   1 /* tc-vax.h -- Header file for tc-vax.c.
   2    Copyright 1987, 1991, 1992, 1993, 1995, 1996, 1997, 2000
   3    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 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_VAX 1
  23
  24 #define TARGET_BYTES_BIG_ENDIAN 0
  25
  26 #ifdef OBJ_AOUT
  27 #ifdef TE_NetBSD
  28 #define TARGET_FORMAT "a.out-vax-netbsd"
  29 #endif
  30 #ifndef TARGET_FORMAT
  31 #define TARGET_FORMAT "a.out-vax-bsd"
  32 #endif
  33 #endif
  34
  35 #ifdef OBJ_VMS
  36 #define TARGET_FORMAT "vms-vax"
  37 #endif
  38
  39 #ifdef OBJ_ELF
  40 #define TARGET_FORMAT "elf32-vax"
  41 #endif
  42
  43 #define BFD_ARCH        bfd_arch_vax    /* for non-BFD_ASSEMBLER */
  44 #define TARGET_ARCH     bfd_arch_vax    /* BFD_ASSEMBLER */
  45
  46 #ifdef BFD_ASSEMBLER
  47 #define NO_RELOC        BFD_RELOC_NONE
  48 #else
  49 #define NO_RELOC        0
  50 #endif
  51 #define NOP_OPCODE      0x01
  52
  53 #define tc_aout_pre_write_hook(x)       {;}     /* not used */
  54 #define tc_crawl_symbol_chain(a)        {;}     /* not used */
  55 #define md_operand(x)
  56
  57 long md_chars_to_number PARAMS ((unsigned char *, int));
  58
  59 extern const struct relax_type md_relax_table[];
  60 #define TC_GENERIC_RELAX_TABLE md_relax_table
  61
  62 /* This expression evaluates to false if the relocation is for a local object
  63    for which we still want to do the relocation at runtime.  True if we
  64    are willing to perform this relocation while building the .o file.  If
  65    the reloc is against an externally visible symbol, then the assembler
  66    should never do the relocation.  */
  67
  68 #ifdef BFD_ASSEMBLER
  69 #define TC_RELOC_RTSYM_LOC_FIXUP(FIX)                   \
  70         ((FIX)->fx_addsy == NULL                        \
  71          || (! S_IS_EXTERNAL ((FIX)->fx_addsy)          \
  72              && ! S_IS_WEAK ((FIX)->fx_addsy)           \
  73              && S_IS_DEFINED ((FIX)->fx_addsy)          \
  74              && ! S_IS_COMMON ((FIX)->fx_addsy)))
  75 #define TC_FIX_ADJUSTABLE(FIX)                          \
  76         (!symbol_used_in_reloc_p ((FIX)) && tc_fix_adjustable ((FIX)))
  77 #define tc_fix_adjustable(FIX)                                  \
  78         ((FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT           \
  79          && (FIX)->fx_r_type != BFD_RELOC_32_PLT_PCREL          \
  80          && (FIX)->fx_r_type != BFD_RELOC_32_GOT_PCREL          \
  81          && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY          \
  82          && ! S_IS_EXTERNAL ((FIX)->fx_addsy)                   \
  83          && ! S_IS_WEAK ((FIX)->fx_addsy)                       \
  84          && ((FIX)->fx_pcrel                                    \
  85              || ((FIX)->fx_subsy != NULL                        \
  86                  && (S_GET_SEGMENT ((FIX)->fx_subsy)            \
  87                      == S_GET_SEGMENT ((FIX)->fx_addsy)))       \
  88              || S_IS_LOCAL ((FIX)->fx_addsy)))
  89 #endif
  90
  91 /*
  92  * Local Variables:
  93  * comment-column: 0
  94  * fill-column: 131
  95  * End:
  96  */