gas/config/tc-dlx.h

   1 /* tc-dlx.h -- Assemble for the DLX
   2    Copyright 2002 Free Software Foundation, Inc.
   3
   4    This file is part of GAS, the GNU Assembler.
   5
   6    GAS is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    GAS is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GAS; see the file COPYING.  If not, write to the Free
  18    Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  19    02111-1307, USA.  */
  20
  21 /* Initially created by Kuang Hwa Lin, 3/20/2002.  */
  22
  23 #include "write.h" /* For the definition of fixS.  */
  24
  25 #define TC_DLX
  26
  27 #ifndef BFD_ASSEMBLER
  28  #error DLX support requires BFD_ASSEMBLER
  29 #endif
  30
  31 #ifndef  __BFD_H_SEEN__
  32 #include "bfd.h"
  33 #endif
  34
  35 /* The target BFD architecture.  */
  36 #define TARGET_ARCH bfd_arch_dlx
  37 #define TARGET_FORMAT "elf32-dlx"
  38 #define TARGET_BYTES_BIG_ENDIAN 1
  39
  40 #define WORKING_DOT_WORD
  41
  42 #define LEX_DOLLAR 1
  43
  44 /* #define md_operand(x) */
  45 extern void dlx_pop_insert              PARAMS ((void));
  46 extern int set_dlx_skip_hi16_flag       PARAMS ((int));
  47
  48 #define md_pop_insert()                 dlx_pop_insert ()
  49
  50 #define md_convert_frag(b,s,f)          as_fatal ("alpha convert_frag\n")
  51 #define md_convert_frag(b,s,f)          as_fatal ("alpha convert_frag\n")
  52 #define md_estimate_size_before_relax(f,s) \
  53                         (as_fatal ("estimate_size_before_relax called"),1)
  54
  55 #define tc_unrecognized_line(c) dlx_unrecognized_line (c)
  56
  57 extern int dlx_unrecognized_line PARAMS ((int));
  58
  59 #define tc_headers_hook(a)              ;       /* not used */
  60 #define tc_headers_hook(a)              ;       /* not used */
  61 #define tc_crawl_symbol_chain(a)        ;       /* not used */
  62 #define tc_coff_symbol_emit_hook(a)     ;       /* not used */
  63
  64 #define AOUT_MACHTYPE 101
  65 #define TC_COFF_FIX2RTYPE(fix_ptr) tc_coff_fix2rtype (fix_ptr)
  66 #define BFD_ARCH bfd_arch_dlx
  67 #define COFF_MAGIC DLXMAGIC
  68 /* Should the reloc be output ?
  69         on the 29k, this is true only if there is a symbol attatched.
  70         on the h8, this is allways true, since no fixup is done
  71         on dlx, I have no idea!! but lets keep it here just for fun.
  72 */
  73 #define TC_COUNT_RELOC(x) (x->fx_addsy)
  74 #define TC_CONS_RELOC BFD_RELOC_32_PCREL
  75
  76 /* We need to force out some relocations when relaxing.  */
  77 #define TC_FORCE_RELOCATION(fix) md_dlx_force_relocation (fix)
  78 struct fix;
  79 extern int md_dlx_force_relocation PARAMS ((struct fix *));
  80
  81 #define obj_fix_adjustable(fixP) md_dlx_fix_adjustable(fixP)
  82 struct fix;
  83 extern boolean md_dlx_fix_adjustable PARAMS ((struct fix *));
  84
  85 /* This arranges for gas/write.c to not apply a relocation if
  86    obj_fix_adjustable() says it is not adjustable.  */
  87 #define TC_FIX_ADJUSTABLE(fixP) obj_fix_adjustable (fixP)
  88
  89 #define NEED_FX_R_TYPE
  90
  91 /* Zero Based Segment?? sound very dangerous to me!     */
  92 #define ZERO_BASED_SEGMENTS
  93
  94 /* Permit temporary numeric labels.  */
  95 #define LOCAL_LABELS_FB 1
  96 #ifdef  LOCAL_LABELS_DOLLAR
  97 #undef  LOCAL_LABELS_DOLLAR
  98 #endif
  99 #define LOCAL_LABELS_DOLLAR 0
 100
 101 #define DIFF_EXPR_OK            /* .-foo gets turned into PC relative relocs */
 102