1 /* tc-sparc.h - Macros and type defines for the sparc. 2 Copyright (C) 1989-2022 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 182