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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  22
  23 #ifndef TC_MIPS
  24
  25 #define TC_MIPS
  26
  27 #define TARGET_ARCH bfd_arch_mips
  28
  29 #define ONLY_STANDARD_ESCAPES
  30 #define WORKING_DOT_WORD        1
  31 #define OLD_FLOAT_READS
  32 #define REPEAT_CONS_EXPRESSIONS
  33 #define RELOC_EXPANSION_POSSIBLE
  34 #define MAX_RELOC_EXPANSION 3
  35 #define LOCAL_LABELS_FB 1
  36
  37 /* Maximum symbol offset that can be encoded in a BFD_RELOC_MIPS_GPREL
  38    relocation: */
  39 #define MAX_GPREL_OFFSET (0x7FF4)
  40
  41 #define LOCAL_LABEL(name) mips_local_label (name)
  42 extern int mips_local_label PARAMS ((const char *));
  43
  44 #define md_relax_frag(fragp, stretch)   (0)
  45 #define md_undefined_symbol(name)       (0)
  46 #define md_operand(x)
  47
  48 /* We permit PC relative difference expressions when generating
  49    embedded PIC code.  */
  50 #define DIFF_EXPR_OK
  51
  52 #define LITTLE_ENDIAN   1234
  53 #define BIG_ENDIAN      4321
  54
  55 /* Default to big endian.  */
  56 #ifndef TARGET_BYTES_LITTLE_ENDIAN
  57 #undef  TARGET_BYTES_BIG_ENDIAN
  58 #define TARGET_BYTES_BIG_ENDIAN         1
  59 #endif
  60
  61 /* The endianness of the target format may change based on command
  62    line arguments.  */
  63 #define TARGET_FORMAT mips_target_format()
  64 extern const char *mips_target_format ();
  65
  66 struct mips_cl_insn {
  67     unsigned long               insn_opcode;
  68     const struct mips_opcode    *insn_mo;
  69 };
  70
  71 extern int tc_get_register PARAMS ((int frame));
  72
  73 #define md_parse_long_option(arg) mips_parse_long_option (arg)
  74 extern int mips_parse_long_option PARAMS ((const char *));
  75
  76 #define tc_frob_label(sym) mips_define_label (sym)
  77 extern void mips_define_label PARAMS ((struct symbol *));
  78
  79 #define tc_frob_file() mips_frob_file ()
  80 extern void mips_frob_file PARAMS ((void));
  81
  82 #define TC_CONS_FIX_NEW cons_fix_new_mips
  83 extern void cons_fix_new_mips ();
  84
  85 /* When generating embedded PIC code we must keep PC relative
  86    relocations.  */
  87 #define TC_FORCE_RELOCATION(fixp) mips_force_relocation (fixp)
  88 extern int mips_force_relocation ();
  89
  90 /* md_apply_fix sets fx_done correctly.  */
  91 #define TC_HANDLE_FX_DONE 1
  92
  93 /* Register mask variables.  These are set by the MIPS assembly code
  94    and used by ECOFF and possibly other object file formats.  */
  95 extern unsigned long mips_gprmask;
  96 extern unsigned long mips_cprmask[4];
  97
  98 #ifdef OBJ_ELF
  99
 100 #define elf_tc_final_processing mips_elf_final_processing
 101 extern void mips_elf_final_processing PARAMS ((void));
 102
 103 #define ELF_TC_SPECIAL_SECTIONS \
 104   { ".sdata",   SHT_PROGBITS,   SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL  }, \
 105   { ".sbss",    SHT_NOBITS,     SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL  }, \
 106   { ".lit4",    SHT_PROGBITS,   SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL  }, \
 107   { ".lit8",    SHT_PROGBITS,   SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL  }, \
 108   { ".ucode",   SHT_MIPS_UCODE, 0                                       }, \
 109   { ".mdebug",  SHT_MIPS_DEBUG, 0                                       },
 110 /* Other special sections not generated by the assembler: .reginfo,
 111    .liblist, .conflict, .gptab, .got, .dynamic, .rel.dyn.  */
 112
 113 #endif
 114
 115 extern void md_mips_end PARAMS ((void));
 116 #define md_end()        md_mips_end()
 117
 118 #define USE_GLOBAL_POINTER_OPT  (OUTPUT_FLAVOR == bfd_target_ecoff_flavour \
 119                                  || OUTPUT_FLAVOR == bfd_target_elf_flavour)
 120
 121 extern void mips_pop_insert PARAMS ((void));
 122 #define md_pop_insert()         mips_pop_insert()
 123
 124 extern void mips_flush_pending_output PARAMS ((void));
 125 #define md_flush_pending_output mips_flush_pending_output
 126
 127 extern void mips_enable_auto_align PARAMS ((void));
 128 #define md_elf_section_change_hook()    mips_enable_auto_align()
 129
 130 extern void mips_init_after_args PARAMS ((void));
 131 #define tc_init_after_args mips_init_after_args
 132
 133 #endif /* TC_MIPS */