1 /* tc-sparc.h - Macros and type defines for the sparc. 2 Copyright (C) 1989-2016 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 #ifdef TE_FreeBSD 34 #define ELF_TARGET_FORMAT "elf32-sparc" 35 #define ELF64_TARGET_FORMAT "elf64-sparc-freebsd" 36 #endif 37 38 #ifdef TE_SOLARIS 39 #define ELF_TARGET_FORMAT "elf32-sparc-sol2" 40 #define ELF64_TARGET_FORMAT "elf64-sparc-sol2" 41 #endif 42 43 #ifndef ELF_TARGET_FORMAT 44 #define ELF_TARGET_FORMAT "elf32-sparc" 45 #endif 46 47 #ifndef ELF64_TARGET_FORMAT 48 #define ELF64_TARGET_FORMAT "elf64-sparc" 49 #endif 50 51 extern const char *sparc_target_format (void); 52 #define TARGET_FORMAT sparc_target_format () 53 54 #define RELOC_EXPANSION_POSSIBLE 55 #define MAX_RELOC_EXPANSION 2 56 57 /* Make it unconditional and check if -EL is valid after option parsing */ 58 #define SPARC_BIENDIAN 59 60 #define WORKING_DOT_WORD 61 62 #define md_convert_frag(b,s,f) \ 63 as_fatal (_("sparc convert_frag\n")) 64 #define md_estimate_size_before_relax(f,s) \ 65 (as_fatal (_("estimate_size_before_relax called")), 1) 66 67 #define LISTING_HEADER "SPARC GAS " 68 69 extern int sparc_pic_code; 70 71 /* We require .word, et. al., to be aligned correctly. */ 72 #define md_cons_align(nbytes) sparc_cons_align (nbytes) 73 extern void sparc_cons_align (int); 74 75 #define HANDLE_ALIGN(fragp) sparc_handle_align (fragp) 76 extern void sparc_handle_align (struct frag *); 77 78 #define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4 + 4) 79 80 /* I know that "call 0" fails in sparc-coff if this doesn't return 1. I 81 don't know about other relocation types, or other formats, yet. */ 82 #ifdef OBJ_COFF 83 #define TC_FORCE_RELOCATION_ABS(FIX) \ 84 ((FIX)->fx_r_type == BFD_RELOC_32_PCREL_S2 \ 85 || TC_FORCE_RELOCATION (FIX)) 86 87 #define RELOC_REQUIRES_SYMBOL 88 #endif 89 90 #ifdef OBJ_AOUT 91 /* This expression evaluates to true if the relocation is for a local 92 object for which we still want to do the relocation at runtime. 93 False if we are willing to perform this relocation while building 94 the .o file. */ 95 96 #define TC_FORCE_RELOCATION_LOCAL(FIX) \ 97 (!(FIX)->fx_pcrel \ 98 || (sparc_pic_code \ 99 && S_IS_EXTERNAL ((FIX)->fx_addsy)) \ 100 || TC_FORCE_RELOCATION (FIX)) 101 #endif 102 103 #ifdef OBJ_ELF 104 /* Don't turn certain relocs into relocations against sections. This 105 is required for the dynamic linker to operate properly. When 106 generating PIC, we need to keep any non PC relative reloc. The PIC 107 part of this test must be parallel to the code in tc_gen_reloc which 108 converts relocations to GOT relocations. */ 109 #define tc_fix_adjustable(FIX) \ 110 ((FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \ 111 && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \ 112 && ((FIX)->fx_r_type < BFD_RELOC_SPARC_TLS_GD_HI22 \ 113 || (FIX)->fx_r_type > BFD_RELOC_SPARC_TLS_TPOFF64) \ 114 && (! sparc_pic_code \ 115 || ((FIX)->fx_r_type != BFD_RELOC_HI22 \ 116 && (FIX)->fx_r_type != BFD_RELOC_LO10 \ 117 && (FIX)->fx_r_type != BFD_RELOC_SPARC13 \ 118 && ((FIX)->fx_r_type != BFD_RELOC_32_PCREL_S2 \ 119 || !generic_force_reloc (FIX)) \ 120 && ((FIX)->fx_pcrel \ 121 || ((FIX)->fx_subsy != NULL \ 122 && (S_GET_SEGMENT ((FIX)->fx_subsy) \ 123 == S_GET_SEGMENT ((FIX)->fx_addsy))) \ 124 || S_IS_LOCAL ((FIX)->fx_addsy))))) 125 126 /* Values passed to md_apply_fix don't include the symbol value. */ 127 #define MD_APPLY_SYM_VALUE(FIX) 0 128 129 /* Finish up the entire symtab. */ 130 #define tc_adjust_symtab() sparc_adjust_symtab () 131 extern void sparc_adjust_symtab (void); 132 #endif 133 134 #ifdef OBJ_AOUT 135 /* When generating PIC code, we must not adjust any reloc which will 136 turn into a reloc against the global offset table, nor any reloc 137 which we will need if a symbol is overridden. */ 138 #define tc_fix_adjustable(FIX) \ 139 (! sparc_pic_code \ 140 || ((FIX)->fx_pcrel \ 141 && ((FIX)->fx_addsy == NULL \ 142 || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \ 143 && ! S_IS_WEAK ((FIX)->fx_addsy)))) \ 144 || (FIX)->fx_r_type == BFD_RELOC_16 \ 145 || (FIX)->fx_r_type == BFD_RELOC_32) 146 #endif 147 148 #define elf_tc_final_processing sparc_elf_final_processing 149 extern void sparc_elf_final_processing (void); 150 151 #define md_operand(x) 152 153 extern void sparc_md_end (void); 154 #define md_end() sparc_md_end () 155 156 #endif 157 158 #define TC_PARSE_CONS_RETURN_TYPE const char * 159 #define TC_PARSE_CONS_RETURN_NONE NULL 160 161 #ifdef OBJ_ELF 162 #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) sparc_cons (EXP, NBYTES) 163 extern const char *sparc_cons (expressionS *, int); 164 #endif 165 166 #define TC_CONS_FIX_NEW cons_fix_new_sparc 167 extern void cons_fix_new_sparc 168 (struct frag *, int, unsigned int, struct expressionS *, const char *); 169 170 #define TC_FIX_TYPE valueT 171 172 #define TC_INIT_FIX_DATA(X) \ 173 do \ 174 { \ 175 (X)->tc_fix_data = 0; \ 176 } \ 177 while (0) 178 179 #define TC_FIX_DATA_PRINT(FILE, FIX) \ 180 do \ 181 { \ 182 fprintf ((FILE), "addend2=%ld\n", \ 183 (unsigned long) (FIX)->tc_fix_data); \ 184 } \ 185 while (0) 186 187 #define TARGET_USE_CFIPOP 1 188 189 #define tc_cfi_frame_initial_instructions sparc_cfi_frame_initial_instructions 190 extern void sparc_cfi_frame_initial_instructions (void); 191 192 #define tc_regname_to_dw2regnum sparc_regname_to_dw2regnum 193 extern int sparc_regname_to_dw2regnum (char *regname); 194 195 #define tc_cfi_emit_pcrel_expr sparc_cfi_emit_pcrel_expr 196 extern void sparc_cfi_emit_pcrel_expr (expressionS *, unsigned int); 197 198 extern int sparc_cie_data_alignment; 199 200 #define DWARF2_LINE_MIN_INSN_LENGTH 4 201 #define DWARF2_DEFAULT_RETURN_COLUMN 15 202 #define DWARF2_CIE_DATA_ALIGNMENT sparc_cie_data_alignment 203 204 /* end of tc-sparc.h */ 205
