gas/config/tc-spu.h

   1 /* spu.h -- Assembler for spu
   2
   3    Copyright 2006, 2007 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, 51 Franklin Street - Fifth Floor, Boston, MA
  20    02110-1301, USA.  */
  21
  22 #define TC_SPU
  23
  24 #include "opcode/spu.h"
  25
  26 #ifdef OBJ_ELF
  27 #define TARGET_FORMAT "elf32-spu"
  28 #define TARGET_ARCH bfd_arch_spu
  29 #define TARGET_NAME "elf32-spu"
  30 #endif
  31
  32 #define TARGET_BYTES_BIG_ENDIAN 1
  33
  34 #ifndef TARGET_NAME
  35 #define TARGET_NAME "coff-spu"
  36 #endif
  37
  38 #ifndef TARGET_ARCH
  39 #define TARGET_ARCH bfd_arch_spu
  40 #endif
  41
  42 #define COFF_MAGIC SPU_MAGIC
  43 #define BFD_ARCH bfd_arch_spu
  44
  45 #define NEED_FX_R_TYPE
  46 #define TC_KEEP_FX_OFFSET
  47 /* #define TC_CONS_RELOC RELOC_32 */
  48
  49 struct tc_fix_info {
  50   unsigned short arg_format;
  51   unsigned short insn_tag;
  52 };
  53
  54 /* fixS will have a member named tc_fix_data of this type.  */
  55 #define TC_FIX_TYPE struct tc_fix_info
  56 #define TC_INIT_FIX_DATA(FIXP) \
  57   do                                            \
  58     {                                           \
  59       (FIXP)->tc_fix_data.arg_format = 0;       \
  60       (FIXP)->tc_fix_data.insn_tag = 0;         \
  61     }                                           \
  62   while (0)
  63
  64 /* Don't reduce function symbols to section symbols, and don't adjust
  65    references to PPU symbols.  */
  66 #define tc_fix_adjustable(FIXP) \
  67   (!(S_IS_FUNCTION ((FIXP)->fx_addsy)                   \
  68      || (FIXP)->fx_r_type == BFD_RELOC_SPU_PPU32        \
  69      || (FIXP)->fx_r_type == BFD_RELOC_SPU_PPU64))
  70
  71 /* Keep relocs on calls.  Branches to function symbols are tail or
  72    sibling calls.  */
  73 #define TC_FORCE_RELOCATION(FIXP) \
  74   ((FIXP)->tc_fix_data.insn_tag == M_BRSL               \
  75    || (FIXP)->tc_fix_data.insn_tag == M_BRASL           \
  76    || (((FIXP)->tc_fix_data.insn_tag == M_BR            \
  77         || (FIXP)->tc_fix_data.insn_tag == M_BRA)       \
  78        && (FIXP)->fx_addsy != NULL                      \
  79        && S_IS_FUNCTION ((FIXP)->fx_addsy))             \
  80    || (FIXP)->fx_r_type == BFD_RELOC_SPU_PPU32          \
  81    || (FIXP)->fx_r_type == BFD_RELOC_SPU_PPU64          \
  82    || generic_force_reloc (FIXP))
  83
  84 /* Values passed to md_apply_fix don't include symbol values.  */
  85 #define MD_APPLY_SYM_VALUE(FIX) 0
  86
  87 /* The spu uses pseudo-ops with no leading period.  */
  88 #define NO_PSEUDO_DOT 1
  89
  90 /* Don't warn on word overflow; it happens on %hi relocs.  */
  91 #undef WARN_SIGNED_OVERFLOW_WORD
  92
  93 #ifdef OBJ_ELF
  94 #define DIFF_EXPR_OK
  95 #endif
  96
  97 #define WORKING_DOT_WORD
  98
  99 #define md_number_to_chars number_to_chars_bigendian
 100
 101 #define md_convert_frag(b,s,f)          {as_fatal (_("spu convert_frag\n"));}
 102
 103 /* We don't need to do anything special for undefined symbols.  */
 104 #define md_undefined_symbol(s) 0
 105
 106 /* We have no special operand handling.  */
 107 #define md_operand(e)
 108
 109 /* Fill in rs_align_code fragments.  */
 110 extern void spu_handle_align PARAMS ((fragS *));
 111 #define HANDLE_ALIGN(frag)  spu_handle_align (frag)
 112
 113 #define MAX_MEM_FOR_RS_ALIGN_CODE  (7 + 8)
 114
 115 #ifdef SPUCOFF
 116
 117 /* Whether a reloc should be output.  */
 118 #define TC_COUNT_RELOC(fixp) ((fixp)->fx_addsy != NULL || (fixp)->fx_subsy != NULL)
 119
 120 /* Get the BFD reloc type to use for a gas fixS structure.  */
 121 #define TC_COFF_FIX2RTYPE(fixp) tc_coff_fix2rtype (fixp)
 122
 123 /* No special hook needed for symbols.  */
 124 #define tc_coff_symbol_emit_hook(s)
 125
 126 /* Align sections to a four byte boundary.  */
 127 #ifndef max
 128 #define max(a,b)        (((a) > (b)) ? (a) : (b))
 129 #endif
 130 #define SUB_SEGMENT_ALIGN(SEG)  max (section_alignment[(int) (SEG)], 4)
 131
 132 #endif /* SPUCOFF */