1 /* tc-sparc.h - Macros and type defines for the sparc. 2 Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 3 1999, 2000, 2001, 2002, 2003, 2005 Free Software Foundation, Inc. 4 5 This file is part of GAS, the GNU Assembler. 6 7 GAS is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as 9 published by the Free Software Foundation; either version 2, 10 or (at your option) any later version. 11 12 GAS is distributed in the hope that it will be useful, but 13 WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 15 the GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public 18 License along with GAS; see the file COPYING. If not, write 19 to the Free Software Foundation, 51 Franklin Street - Fifth Floor, 20 Boston, MA 02110-1301, USA. */ 21 22 #ifndef TC_SPARC 23 #define TC_SPARC 1 24 25 #ifdef ANSI_PROTOTYPES 26 struct frag; 27 #endif 28 29 /* This is used to set the default value for `target_big_endian'. */ 30 #define TARGET_BYTES_BIG_ENDIAN 1 31 32 #define LOCAL_LABELS_FB 1 33 34 #define TARGET_ARCH bfd_arch_sparc 35 36 extern const char *sparc_target_format PARAMS ((void)); 37 #define TARGET_FORMAT sparc_target_format () 38 39 #define RELOC_EXPANSION_POSSIBLE 40 #define MAX_RELOC_EXPANSION 2 41 42 /* Make it unconditional and check if -EL is valid after option parsing */ 43 #define SPARC_BIENDIAN 44 45 #define WORKING_DOT_WORD 46 47 #define md_convert_frag(b,s,f) \ 48 as_fatal (_("sparc convert_frag\n")) 49 #define md_estimate_size_before_relax(f,s) \ 50 (as_fatal (_("estimate_size_before_relax called")), 1) 51 52 #define LISTING_HEADER "SPARC GAS " 53 54 extern int sparc_pic_code; 55 56 /* We require .word, et. al., to be aligned correctly. */ 57 #define md_cons_align(nbytes) sparc_cons_align (nbytes) 58 extern void sparc_cons_align PARAMS ((int)); 59 60 #define HANDLE_ALIGN(fragp) sparc_handle_align (fragp) 61 extern void sparc_handle_align PARAMS ((struct frag *)); 62 63 #define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4 + 4) 64 65 /* I know that "call 0" fails in sparc-coff if this doesn't return 1. I 66 don't know about other relocation types, or other formats, yet. */ 67 #ifdef OBJ_COFF 68 #define TC_FORCE_RELOCATION_ABS(FIX) \ 69 ((FIX)->fx_r_type == BFD_RELOC_32_PCREL_S2 \ 70 || TC_FORCE_RELOCATION (FIX)) 71 72 #define RELOC_REQUIRES_SYMBOL 73 #endif 74 75 #ifdef OBJ_AOUT 76 /* This expression evaluates to true if the relocation is for a local 77 object for which we still want to do the relocation at runtime. 78 False if we are willing to perform this relocation while building 79 the .o file. */ 80 81 #define TC_FORCE_RELOCATION_LOCAL(FIX) \ 82 (!(FIX)->fx_pcrel \ 83 || (FIX)->fx_plt \ 84 || (sparc_pic_code \ 85 && S_IS_EXTERNAL ((FIX)->fx_addsy)) \ 86 || TC_FORCE_RELOCATION (FIX)) 87 #endif 88 89 #ifdef OBJ_ELF 90 /* Don't turn certain relocs into relocations against sections. This 91 is required for the dynamic linker to operate properly. When 92 generating PIC, we need to keep any non PC relative reloc. The PIC 93 part of this test must be parallel to the code in tc_gen_reloc which 94 converts relocations to GOT relocations. */ 95 #define tc_fix_adjustable(FIX) \ 96 ((FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \ 97 && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \ 98 && ((FIX)->fx_r_type < BFD_RELOC_SPARC_TLS_GD_HI22 \ 99 || (FIX)->fx_r_type > BFD_RELOC_SPARC_TLS_TPOFF64) \ 100 && (! sparc_pic_code \ 101 || ((FIX)->fx_r_type != BFD_RELOC_HI22 \ 102 && (FIX)->fx_r_type != BFD_RELOC_LO10 \ 103 && (FIX)->fx_r_type != BFD_RELOC_SPARC13 \ 104 && ((FIX)->fx_r_type != BFD_RELOC_32_PCREL_S2 \ 105 || !generic_force_reloc (FIX)) \ 106 && ((FIX)->fx_pcrel \ 107 || ((FIX)->fx_subsy != NULL \ 108 && (S_GET_SEGMENT ((FIX)->fx_subsy) \ 109 == S_GET_SEGMENT ((FIX)->fx_addsy))) \ 110 || S_IS_LOCAL ((FIX)->fx_addsy))))) 111 112 /* Values passed to md_apply_fix don't include the symbol value. */ 113 #define MD_APPLY_SYM_VALUE(FIX) 0 114 115 /* Finish up the entire symtab. */ 116 #define tc_adjust_symtab() sparc_adjust_symtab () 117 extern void sparc_adjust_symtab PARAMS ((void)); 118 #endif 119 120 #ifdef OBJ_AOUT 121 /* When generating PIC code, we must not adjust any reloc which will 122 turn into a reloc against the global offset table, nor any reloc 123 which we will need if a symbol is overridden. */ 124 #define tc_fix_adjustable(FIX) \ 125 (! sparc_pic_code \ 126 || ((FIX)->fx_pcrel \ 127 && ((FIX)->fx_addsy == NULL \ 128 || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \ 129 && ! S_IS_WEAK ((FIX)->fx_addsy)))) \ 130 || (FIX)->fx_r_type == BFD_RELOC_16 \ 131 || (FIX)->fx_r_type == BFD_RELOC_32) 132 #endif 133 134 #define elf_tc_final_processing sparc_elf_final_processing 135 extern void sparc_elf_final_processing PARAMS ((void)); 136 137 #define md_operand(x) 138 139 extern void sparc_md_end PARAMS ((void)); 140 #define md_end() sparc_md_end () 141 142 #endif 143 144 #ifdef OBJ_ELF 145 #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) sparc_cons (EXP, NBYTES) 146 extern void sparc_cons PARAMS ((expressionS *, int)); 147 #endif 148 149 #define TC_CONS_FIX_NEW cons_fix_new_sparc 150 extern void cons_fix_new_sparc 151 PARAMS ((struct frag *, int, unsigned int, struct expressionS *)); 152 153 #define TC_FIX_TYPE valueT 154 155 #define TC_INIT_FIX_DATA(X) \ 156 do \ 157 { \ 158 (X)->tc_fix_data = 0; \ 159 } \ 160 while (0) 161 162 #define TC_FIX_DATA_PRINT(FILE, FIX) \ 163 do \ 164 { \ 165 fprintf ((FILE), "addend2=%ld\n", \ 166 (unsigned long) (FIX)->tc_fix_data); \ 167 } \ 168 while (0) 169 170 #define TARGET_USE_CFIPOP 1 171 172 #define tc_cfi_frame_initial_instructions sparc_cfi_frame_initial_instructions 173 extern void sparc_cfi_frame_initial_instructions PARAMS ((void)); 174 175 #define tc_regname_to_dw2regnum sparc_regname_to_dw2regnum 176 extern int sparc_regname_to_dw2regnum PARAMS ((const char *regname)); 177 178 #define tc_cfi_emit_pcrel_expr sparc_cfi_emit_pcrel_expr 179 extern void sparc_cfi_emit_pcrel_expr PARAMS ((expressionS *, unsigned int)); 180 181 extern int sparc_cie_data_alignment; 182 183 #define DWARF2_LINE_MIN_INSN_LENGTH 4 184 #define DWARF2_DEFAULT_RETURN_COLUMN 15 185 #define DWARF2_CIE_DATA_ALIGNMENT sparc_cie_data_alignment 186 187 /* end of tc-sparc.h */ 188