| 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 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, 59 Temple Place - Suite 330, |
| 20 | Boston, MA 02111-1307, 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_fix3 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 */ |