gas/config/tc-sparc.h

   1 /* tc-sparc.h - Macros and type defines for the sparc.
   2    Copyright (C) 1989-2019 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
   8    published by the Free Software Foundation; either version 3,
   9    or (at your option) any later version.
  10
  11    GAS is distributed in the hope that it will be useful, but
  12    WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  14    the GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public
  17    License along with GAS; see the file COPYING.  If not, write
  18    to the Free Software Foundation, 51 Franklin Street - Fifth Floor,
  19    Boston, MA 02110-1301, USA.  */
  20
  21 #ifndef TC_SPARC
  22 #define TC_SPARC 1
  23
  24 struct frag;
  25
  26 /* This is used to set the default value for `target_big_endian'.  */
  27 #define TARGET_BYTES_BIG_ENDIAN 1
  28
  29 #define LOCAL_LABELS_FB 1
  30
  31 #define TARGET_ARCH bfd_arch_sparc
  32
  33 extern unsigned long sparc_mach (void);
  34 #define TARGET_MACH sparc_mach ()
  35
  36 #ifdef TE_FreeBSD
  37 #define ELF_TARGET_FORMAT       "elf32-sparc"
  38 #define ELF64_TARGET_FORMAT     "elf64-sparc-freebsd"
  39 #endif
  40
  41 #ifdef TE_SOLARIS
  42 #define ELF_TARGET_FORMAT       "elf32-sparc-sol2"
  43 #define ELF64_TARGET_FORMAT     "elf64-sparc-sol2"
  44 #endif
  45
  46 #ifndef ELF_TARGET_FORMAT
  47 #define ELF_TARGET_FORMAT       "elf32-sparc"
  48 #endif
  49
  50 #ifndef ELF64_TARGET_FORMAT
  51 #define ELF64_TARGET_FORMAT     "elf64-sparc"
  52 #endif
  53
  54 extern const char *sparc_target_format (void);
  55 #define TARGET_FORMAT sparc_target_format ()
  56
  57 #define RELOC_EXPANSION_POSSIBLE
  58 #define MAX_RELOC_EXPANSION 2
  59
  60 /* Make it unconditional and check if -EL is valid after option parsing */
  61 #define SPARC_BIENDIAN
  62
  63 #define WORKING_DOT_WORD
  64
  65 #define md_convert_frag(b,s,f) \
  66   as_fatal (_("sparc convert_frag\n"))
  67 #define md_estimate_size_before_relax(f,s) \
  68   (as_fatal (_("estimate_size_before_relax called")), 1)
  69
  70 #define LISTING_HEADER "SPARC GAS "
  71
  72 extern int sparc_pic_code;
  73
  74 /* We require .word, et. al., to be aligned correctly.  */
  75 #define md_cons_align(nbytes) sparc_cons_align (nbytes)
  76 extern void sparc_cons_align (int);
  77
  78 #define HANDLE_ALIGN(fragp) sparc_handle_align (fragp)
  79 extern void sparc_handle_align (struct frag *);
  80
  81 #define MAX_MEM_FOR_RS_ALIGN_CODE  (3 + 4 + 4)
  82
  83 #define DIFF_EXPR_OK    /* foo-. gets turned into PC relative relocs */
  84
  85 /* Don't turn certain relocs into relocations against sections.  This
  86    is required for the dynamic linker to operate properly.  When
  87    generating PIC, we need to keep any non PC relative reloc.  The PIC
  88    part of this test must be parallel to the code in tc_gen_reloc which
  89    converts relocations to GOT relocations.  */
  90 #define tc_fix_adjustable(FIX)                                          \
  91   ((FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT                         \
  92    && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY                        \
  93    && ((FIX)->fx_r_type < BFD_RELOC_SPARC_TLS_GD_HI22                   \
  94        || (FIX)->fx_r_type > BFD_RELOC_SPARC_TLS_TPOFF64)               \
  95    && (! sparc_pic_code                                                 \
  96        || ((FIX)->fx_r_type != BFD_RELOC_HI22                           \
  97            && (FIX)->fx_r_type != BFD_RELOC_LO10                        \
  98            && (FIX)->fx_r_type != BFD_RELOC_SPARC13                     \
  99            && ((FIX)->fx_r_type != BFD_RELOC_32_PCREL_S2                \
 100                || !generic_force_reloc (FIX))                           \
 101            && ((FIX)->fx_pcrel                                          \
 102                || ((FIX)->fx_subsy != NULL                              \
 103                    && (S_GET_SEGMENT ((FIX)->fx_subsy)                  \
 104                        == S_GET_SEGMENT ((FIX)->fx_addsy)))             \
 105                || S_IS_LOCAL ((FIX)->fx_addsy)))))
 106
 107 /* Values passed to md_apply_fix don't include the symbol value.  */
 108 #define MD_APPLY_SYM_VALUE(FIX) 0
 109
 110 /* Finish up the entire symtab.  */
 111 #define tc_adjust_symtab() sparc_adjust_symtab ()
 112 extern void sparc_adjust_symtab (void);
 113
 114 /* Don't allow the generic code to convert fixups involving the
 115    subtraction of a label in the current section to pc-relative if we
 116    don't have the necessary pc-relative relocation.  */
 117 #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG)         \
 118   (!((FIX)->fx_r_type == BFD_RELOC_64                   \
 119      || (FIX)->fx_r_type == BFD_RELOC_32                \
 120      || (FIX)->fx_r_type == BFD_RELOC_16                \
 121      || (FIX)->fx_r_type == BFD_RELOC_8))
 122
 123 #define elf_tc_final_processing sparc_elf_final_processing
 124 extern void sparc_elf_final_processing (void);
 125
 126 #define md_operand(x)
 127
 128 extern void sparc_md_end (void);
 129 #define md_end() sparc_md_end ()
 130
 131 #define TC_PARSE_CONS_RETURN_TYPE const char *
 132 #define TC_PARSE_CONS_RETURN_NONE NULL
 133
 134 #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) sparc_cons (EXP, NBYTES)
 135 extern const char *sparc_cons (expressionS *, int);
 136
 137 #define TC_CONS_FIX_NEW cons_fix_new_sparc
 138 extern void cons_fix_new_sparc
 139 (struct frag *, int, unsigned int, struct expressionS *, const char *);
 140
 141 #define TC_FIX_TYPE     valueT
 142
 143 #define TC_INIT_FIX_DATA(X)                     \
 144   do                                            \
 145      {                                          \
 146        (X)->tc_fix_data = 0;                    \
 147      }                                          \
 148   while (0)
 149
 150 #define TC_FIX_DATA_PRINT(FILE, FIX)                                    \
 151   do                                                                    \
 152     {                                                                   \
 153       fprintf ((FILE), "addend2=%ld\n",                                 \
 154               (unsigned long) (FIX)->tc_fix_data);                      \
 155     }                                                                   \
 156   while (0)
 157
 158 #define TARGET_USE_CFIPOP 1
 159
 160 #define tc_cfi_frame_initial_instructions sparc_cfi_frame_initial_instructions
 161 extern void sparc_cfi_frame_initial_instructions (void);
 162
 163 #define tc_regname_to_dw2regnum sparc_regname_to_dw2regnum
 164 extern int sparc_regname_to_dw2regnum (char *regname);
 165
 166 #define tc_cfi_emit_pcrel_expr sparc_cfi_emit_pcrel_expr
 167 extern void sparc_cfi_emit_pcrel_expr (expressionS *, unsigned int);
 168
 169 extern int sparc_cie_data_alignment;
 170
 171 #define DWARF2_LINE_MIN_INSN_LENGTH     4
 172 #define DWARF2_DEFAULT_RETURN_COLUMN    15
 173 #define DWARF2_CIE_DATA_ALIGNMENT       sparc_cie_data_alignment
 174
 175 /* cons_fix_new_sparc will chooose BFD_RELOC_SPARC_UA32 for the difference
 176    expressions, but there is no corresponding PC-relative relocation; as this
 177    is for debugging info though, alignment does not matter, so by disabling
 178    this, BFD_RELOC_32_PCREL will be emitted directly instead.  */
 179 #define CFI_DIFF_EXPR_OK 0
 180
 181 #endif