gas/config/tc-mep.h

   1 /* tc-mep.h -- Header file for tc-mep.c.
   2    Copyright (C) 2001-2024 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 3, 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
  18    the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  19    Boston, MA 02110-1301, USA. */
  20
  21 #define TC_MEP
  22
  23 /* Support computed relocations.  */
  24 #define OBJ_COMPLEX_RELC
  25
  26 /* Support many operands per instruction.  */
  27 #define GAS_CGEN_MAX_FIXUPS 10
  28
  29 #define LISTING_HEADER "MEP GAS "
  30
  31 /* The target BFD architecture.  */
  32 #define TARGET_ARCH bfd_arch_mep
  33
  34 #define TARGET_FORMAT (target_big_endian ? "elf32-mep" : "elf32-mep-little")
  35
  36 /* This is the default.  */
  37 #define TARGET_BYTES_BIG_ENDIAN 0
  38
  39 /* Permit temporary numeric labels. */
  40 #define LOCAL_LABELS_FB 1
  41
  42 /* Do not define DIFF_EXPR_OK - the MeP does not have a 32-bit PC-relative reloc.  */
  43
  44 /* We don't need to handle .word strangely.  */
  45 #define WORKING_DOT_WORD
  46
  47 /* Values passed to md_apply_fix don't include the symbol value.  */
  48 #define MD_APPLY_SYM_VALUE(FIX) 0
  49
  50 #define MD_APPLY_FIX
  51 #define md_apply_fix mep_apply_fix
  52 extern void mep_apply_fix (struct fix *, valueT *, segT);
  53
  54 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
  55 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
  56
  57 #define tc_frob_file() mep_frob_file ()
  58 extern void mep_frob_file (void);
  59
  60 #define tc_fix_adjustable(fixP) mep_fix_adjustable (fixP)
  61 extern bool mep_fix_adjustable (struct fix *);
  62
  63 /* After creating a fixup for an instruction operand, we need
  64    to check for HI16 relocs and queue them up for later sorting.  */
  65 #define md_cgen_record_fixup_exp  mep_cgen_record_fixup_exp
  66
  67 /* When relaxing, we need to emit various relocs we otherwise wouldn't.  */
  68 #define TC_FORCE_RELOCATION(fix) mep_force_relocation (fix)
  69 extern int mep_force_relocation (struct fix *);
  70
  71 #define tc_gen_reloc gas_cgen_tc_gen_reloc
  72
  73 extern void gas_cgen_md_operand (expressionS *);
  74 #define md_operand(x) gas_cgen_md_operand (x)
  75
  76 #define md_flush_pending_output() mep_flush_pending_output()
  77 extern int mep_flush_pending_output(void);
  78
  79 extern const struct relax_type md_relax_table[];
  80 #define TC_GENERIC_RELAX_TABLE md_relax_table
  81
  82 extern long mep_relax_frag (segT, fragS *, long);
  83 #define md_relax_frag mep_relax_frag
  84
  85 /* Account for inserting a jmp after the insn.  */
  86 #define TC_CGEN_MAX_RELAX(insn, len) ((len) + 4)
  87
  88 extern void mep_prepare_relax_scan (fragS *, offsetT *, relax_substateT);
  89 #define md_prepare_relax_scan(FRAGP, ADDR, AIM, STATE, TYPE) \
  90         mep_prepare_relax_scan (FRAGP, &AIM, STATE)
  91
  92 /* Support for core/vliw mode switching.  */
  93 #define CORE 0
  94 #define VLIW 1
  95 #define MAX_PARALLEL_INSNS 56 /* From email from Toshiba.  */
  96 #define VTEXT_SECTION_NAME ".vtext"
  97
  98 /* Needed to process pending instructions when a label is encountered.  */
  99 #define TC_START_LABEL(STR, NUL_CHAR, NEXT_CHAR)        \
 100   (NEXT_CHAR == ':' && mep_flush_pending_output ())
 101
 102 #define tc_unrecognized_line(c) mep_unrecognized_line (c)
 103 extern int mep_unrecognized_line (int);
 104 #define md_cleanup mep_cleanup
 105 extern void mep_cleanup (void);
 106
 107 #define md_elf_section_letter           mep_elf_section_letter
 108 extern bfd_vma mep_elf_section_letter (int, const char **);
 109 #define md_elf_section_flags            mep_elf_section_flags
 110 extern flagword mep_elf_section_flags  (flagword, bfd_vma, int);
 111
 112 #define ELF_TC_SPECIAL_SECTIONS \
 113   { VTEXT_SECTION_NAME, SHT_PROGBITS, SHF_ALLOC|SHF_EXECINSTR|SHF_MEP_VLIW },
 114
 115 /* The values of the following enum are for use with parinsnum, which
 116    is a variable in md_assemble that keeps track of whether or not the
 117    next instruction is expected to be the first or second instruction in
 118    a parallelization group.  */
 119 typedef enum exp_par_insn_{FIRST, SECOND} EXP_PAR_INSN;