gas/config/tc-rx.h

   1 /* tc-rx.h - header file for Renesas RX
   2    Copyright (C) 2008-2021 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 the Free
  18    Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
  19    02110-1301, USA.  */
  20
  21 #define TC_RX
  22
  23 extern int target_big_endian;
  24
  25 #define LISTING_HEADER (target_big_endian ? "RX GAS BE" : "RX GAS LE")
  26 #define LISTING_LHS_WIDTH 8
  27 #define LISTING_WORD_SIZE 1
  28
  29 #define TARGET_ARCH bfd_arch_rx
  30
  31 /* Instruction bytes are big endian, data bytes can be either.  */
  32 #define TARGET_BYTES_BIG_ENDIAN 0
  33
  34 #ifndef TE_LINUX
  35 #define TARGET_FORMAT (target_big_endian ? "elf32-rx-be" : "elf32-rx-le")
  36 #else
  37 #define TARGET_FORMAT "elf32-rx-linux"
  38 #endif
  39
  40 /* We don't need to handle .word strangely.  */
  41 #define WORKING_DOT_WORD
  42
  43 /* Permit temporary numeric labels.  */
  44 #define LOCAL_LABELS_FB 1
  45 /* But make sure that the binutils treat them as locals.  */
  46 #define LOCAL_LABEL_PREFIX '.'
  47
  48 /* Allow classic-style constants.  */
  49 #define NUMBERS_WITH_SUFFIX 1
  50
  51 /* .-foo gets turned into PC relative relocs.  */
  52 #define DIFF_EXPR_OK
  53
  54 #define md_end rx_md_end
  55 extern void rx_md_end (void);
  56
  57 /* Note - the definition of MD_RELAX_FRAG here includes a reference to the
  58    MAX_ITERATIONS variable which is defined locally in write.c:relax_segment()
  59    but which is not normally passed to target specific relaxing code.  This
  60    reference is needed however as the number of iterations of the RX relaxing
  61    code needs to be constrained by the maximum number of iterations allowed
  62    by relax_segment().  See PR 24464 for more details.  */
  63 #define md_relax_frag(SEG, FRAGP, STRETCH) \
  64   rx_relax_frag ((SEG), (FRAGP), (STRETCH), max_iterations)
  65 extern int rx_relax_frag (segT, fragS *, long, unsigned long);
  66
  67 #define TC_FRAG_TYPE struct rx_bytesT *
  68 #define TC_FRAG_INIT(fragp, max_bytes) rx_frag_init (fragp)
  69 extern void rx_frag_init (fragS *);
  70
  71 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
  72 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
  73
  74 /* RX doesn't have a 32 bit PCREL relocations.  */
  75 #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) 1
  76
  77 #define TC_VALIDATE_FIX_SUB(FIX, SEG)           \
  78   rx_validate_fix_sub (FIX)
  79 extern int rx_validate_fix_sub (struct fix *);
  80
  81 #define TC_CONS_FIX_NEW(FRAG, WHERE, NBYTES, EXP, RELOC)        \
  82   rx_cons_fix_new (FRAG, WHERE, NBYTES, EXP, RELOC)
  83 extern void rx_cons_fix_new (fragS *, int, int, expressionS *,
  84                              bfd_reloc_code_real_type);
  85
  86 #define tc_fix_adjustable(x) 0
  87
  88 #define md_do_align(n, fill, len, max, around)                          \
  89   if ((n)                                                               \
  90       && !need_pass_2                                                   \
  91       && (!(fill)                                                       \
  92           || ((char)*(fill) == (char)0x03 && (len) == 1))               \
  93       && subseg_text_p (now_seg))                                       \
  94     {                                                                   \
  95       frag_align_code ((n), (max));                                     \
  96       goto around;                                                      \
  97     }
  98
  99 #define MAX_MEM_FOR_RS_ALIGN_CODE 8
 100 #define HANDLE_ALIGN(FRAG) rx_handle_align (FRAG)
 101 extern void rx_handle_align (fragS *);
 102
 103 #define RELOC_EXPANSION_POSSIBLE 1
 104 #define MAX_RELOC_EXPANSION      4
 105
 106 #define elf_tc_final_processing rx_elf_final_processing
 107 extern void rx_elf_final_processing (void);
 108
 109 extern bfd_boolean rx_use_conventional_section_names;
 110 #define TEXT_SECTION_NAME       (rx_use_conventional_section_names ? ".text" : "P")
 111 #define DATA_SECTION_NAME       (rx_use_conventional_section_names ? ".data" : "D_1")
 112 #define BSS_SECTION_NAME        (rx_use_conventional_section_names ? ".bss"  : "B_1")
 113
 114 #define md_start_line_hook rx_start_line
 115 extern void rx_start_line (void);