gas/config/tc-mips.h

   1 /* tc-mips.c -- header file for tc-mips.c.
   2    Copyright (C) 1993 Free Software Foundation, Inc.
   3    Contributed by the OSF and Ralph Campbell.
   4    Written by Keith Knowles and Ralph Campbell, working independently.
   5    Modified for ECOFF support by Ian Lance Taylor of Cygnus Support.
   6
   7    This file is part of GAS.
   8
   9    GAS is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2, or (at your option)
  12    any later version.
  13
  14    GAS is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with GAS; see the file COPYING.  If not, write to
  21    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  22
  23 #define TC_MIPS
  24
  25 #define TARGET_ARCH bfd_arch_mips
  26
  27 #define ONLY_STANDARD_ESCAPES
  28 #define BACKSLASH_V
  29 #define WORKING_DOT_WORD        1
  30 #define OLD_FLOAT_READS
  31 #define REPEAT_CONS_EXPRESSIONS
  32 #define RELOC_EXPANSION_POSSIBLE
  33 #define MAX_RELOC_EXPANSION 3
  34 #define LOCAL_LABELS_FB 1
  35
  36 /* The MIPS assembler appears to keep all symbols.  */
  37 #define LOCAL_LABEL(name) 0
  38
  39 #define md_relax_frag(fragp, stretch)   (0)
  40 #define md_undefined_symbol(name)       (0)
  41 #define md_operand(x)
  42
  43 /* We permit PC relative difference expressions when generating
  44    embedded PIC code.  */
  45 #define DIFF_EXPR_OK
  46
  47 #define LITTLE_ENDIAN   1234
  48 #define BIG_ENDIAN      4321
  49
  50 /* Default to big endian.  */
  51 #ifndef TARGET_BYTES_LITTLE_ENDIAN
  52 #undef  TARGET_BYTES_BIG_ENDIAN
  53 #define TARGET_BYTES_BIG_ENDIAN         1
  54 #endif
  55
  56 #if TARGET_BYTES_BIG_ENDIAN
  57 #define BYTE_ORDER      BIG_ENDIAN
  58 #else
  59 #define BYTE_ORDER      LITTLE_ENDIAN
  60 #endif
  61
  62 /* The endianness of the target format may change based on command
  63    line arguments.  */
  64 #define TARGET_FORMAT mips_target_format()
  65 extern const char *mips_target_format ();
  66
  67 struct mips_cl_insn {
  68     unsigned long               insn_opcode;
  69     const struct mips_opcode    *insn_mo;
  70 };
  71
  72 extern int tc_get_register PARAMS ((int frame));
  73
  74 #define md_parse_long_option(arg) mips_parse_long_option (arg)
  75 extern int mips_parse_long_option PARAMS ((const char *));
  76
  77 #define tc_frob_label(sym) mips_define_label (sym)
  78 extern void mips_define_label PARAMS ((struct symbol *));
  79
  80 #define TC_CONS_FIX_NEW cons_fix_new_mips
  81 extern void cons_fix_new_mips ();
  82
  83 /* When generating embedded PIC code we must keep PC relative
  84    relocations.  */
  85 #define TC_FORCE_RELOCATION(fixp) mips_force_relocation (fixp)
  86 extern int mips_force_relocation ();
  87
  88 /* md_apply_fix sets fx_done correctly.  */
  89 #define TC_HANDLE_FX_DONE 1
  90
  91 /* Register mask variables.  These are set by the MIPS assembly code
  92    and used by ECOFF and possibly other object file formats.  */
  93 extern unsigned long mips_gprmask;
  94 extern unsigned long mips_cprmask[4];
  95
  96 #ifdef OBJ_ELF
  97
  98 #define elf_tc_final_processing mips_elf_final_processing
  99 extern void mips_elf_final_processing PARAMS ((void));
 100
 101 #define ELF_TC_SPECIAL_SECTIONS \
 102   { ".sdata",   SHT_PROGBITS,   SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL  }, \
 103   { ".sbss",    SHT_NOBITS,     SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL  }, \
 104   { ".lit4",    SHT_PROGBITS,   SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL  }, \
 105   { ".lit8",    SHT_PROGBITS,   SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL  }, \
 106   { ".ucode",   SHT_MIPS_UCODE, 0                                       }, \
 107   { ".mdebug",  SHT_MIPS_DEBUG, 0                                       },
 108 /* Other special sections not generated by the assembler: .reginfo,
 109    .liblist, .conflict, .gptab, .got, .dynamic, .rel.dyn.  */
 110
 111 #endif
 112
 113 extern void md_mips_end PARAMS ((void));
 114 #define md_end()        md_mips_end()
 115
 116 #define USE_GLOBAL_POINTER_OPT  (OUTPUT_FLAVOR == bfd_target_ecoff_flavour \
 117                                  || OUTPUT_FLAVOR == bfd_target_elf_flavour)