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, 2006, 2007, 2008, 2010 4 Free Software Foundation, Inc. 5 6 This file is part of GAS, the GNU Assembler. 7 8 GAS is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as 10 published by the Free Software Foundation; either version 3, 11 or (at your option) any later version. 12 13 GAS is distributed in the hope that it will be useful, but 14 WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 16 the GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public 19 License along with GAS; see the file COPYING. If not, write 20 to the Free Software Foundation, 51 Franklin Street - Fifth Floor, 21 Boston, MA 02110-1301, USA. */ 22 23#ifndef TC_SPARC 24#define TC_SPARC 1 25 26struct frag; 27 28/* This is used to set the default value for `target_big_endian'. */ 29#define TARGET_BYTES_BIG_ENDIAN 1 30 31#define LOCAL_LABELS_FB 1 32 33#define TARGET_ARCH bfd_arch_sparc 34 35#ifdef TE_FreeBSD 36#define ELF_TARGET_FORMAT "elf32-sparc-freebsd" 37#define ELF64_TARGET_FORMAT "elf64-sparc-freebsd" 38#endif 39 40#ifdef TE_SOLARIS 41#define ELF_TARGET_FORMAT "elf32-sparc-sol2" 42#define ELF64_TARGET_FORMAT "elf64-sparc-sol2" 43#endif 44 45#ifndef ELF_TARGET_FORMAT 46#define ELF_TARGET_FORMAT "elf32-sparc" 47#endif 48 49#ifndef ELF64_TARGET_FORMAT 50#define ELF64_TARGET_FORMAT "elf64-sparc" 51#endif 52 53extern const char *sparc_target_format (void); 54#define TARGET_FORMAT sparc_target_format () 55 56#define RELOC_EXPANSION_POSSIBLE 57#define MAX_RELOC_EXPANSION 2 58 59/* Make it unconditional and check if -EL is valid after option parsing */ 60#define SPARC_BIENDIAN 61 62#define WORKING_DOT_WORD 63 64#define md_convert_frag(b,s,f) \ 65 as_fatal (_("sparc convert_frag\n")) 66#define md_estimate_size_before_relax(f,s) \ 67 (as_fatal (_("estimate_size_before_relax called")), 1) 68 69#define LISTING_HEADER "SPARC GAS " 70 71extern int sparc_pic_code; 72 73/* We require .word, et. al., to be aligned correctly. */ 74#define md_cons_align(nbytes) sparc_cons_align (nbytes) 75extern void sparc_cons_align (int); 76 77#define HANDLE_ALIGN(fragp) sparc_handle_align (fragp) 78extern void sparc_handle_align (struct frag *); 79 80#define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4 + 4) 81 82/* I know that "call 0" fails in sparc-coff if this doesn't return 1. I 83 don't know about other relocation types, or other formats, yet. */ 84#ifdef OBJ_COFF 85#define TC_FORCE_RELOCATION_ABS(FIX) \ 86 ((FIX)->fx_r_type == BFD_RELOC_32_PCREL_S2 \ 87 || TC_FORCE_RELOCATION (FIX)) 88 89#define RELOC_REQUIRES_SYMBOL 90#endif 91 92#ifdef OBJ_AOUT 93/* This expression evaluates to true if the relocation is for a local 94 object for which we still want to do the relocation at runtime. 95 False if we are willing to perform this relocation while building 96 the .o file. */ 97 98#define TC_FORCE_RELOCATION_LOCAL(FIX) \ 99 (!(FIX)->fx_pcrel \ 100 || (sparc_pic_code \ 101 && S_IS_EXTERNAL ((FIX)->fx_addsy)) \ 102 || TC_FORCE_RELOCATION (FIX)) 103#endif 104 105#ifdef OBJ_ELF 106/* Don't turn certain relocs into relocations against sections. This 107 is required for the dynamic linker to operate properly. When 108 generating PIC, we need to keep any non PC relative reloc. The PIC 109 part of this test must be parallel to the code in tc_gen_reloc which 110 converts relocations to GOT relocations. */ 111#define tc_fix_adjustable(FIX) \ 112 ((FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \ 113 && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \ 114 && ((FIX)->fx_r_type < BFD_RELOC_SPARC_TLS_GD_HI22 \ 115 || (FIX)->fx_r_type > BFD_RELOC_SPARC_TLS_TPOFF64) \ 116 && (! sparc_pic_code \ 117 || ((FIX)->fx_r_type != BFD_RELOC_HI22 \ 118 && (FIX)->fx_r_type != BFD_RELOC_LO10 \ 119 && (FIX)->fx_r_type != BFD_RELOC_SPARC13 \ 120 && ((FIX)->fx_r_type != BFD_RELOC_32_PCREL_S2 \ 121 || !generic_force_reloc (FIX)) \ 122 && ((FIX)->fx_pcrel \ 123 || ((FIX)->fx_subsy != NULL \ 124 && (S_GET_SEGMENT ((FIX)->fx_subsy) \ 125 == S_GET_SEGMENT ((FIX)->fx_addsy))) \ 126 || S_IS_LOCAL ((FIX)->fx_addsy))))) 127 128/* Values passed to md_apply_fix don't include the symbol value. */ 129#define MD_APPLY_SYM_VALUE(FIX) 0 130 131/* Finish up the entire symtab. */ 132#define tc_adjust_symtab() sparc_adjust_symtab () 133extern void sparc_adjust_symtab (void); 134#endif 135 136#ifdef OBJ_AOUT 137/* When generating PIC code, we must not adjust any reloc which will 138 turn into a reloc against the global offset table, nor any reloc 139 which we will need if a symbol is overridden. */ 140#define tc_fix_adjustable(FIX) \ 141 (! sparc_pic_code \ 142 || ((FIX)->fx_pcrel \ 143 && ((FIX)->fx_addsy == NULL \ 144 || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \ 145 && ! S_IS_WEAK ((FIX)->fx_addsy)))) \ 146 || (FIX)->fx_r_type == BFD_RELOC_16 \ 147 || (FIX)->fx_r_type == BFD_RELOC_32) 148#endif 149 150#define elf_tc_final_processing sparc_elf_final_processing 151extern void sparc_elf_final_processing (void); 152 153#define md_operand(x) 154 155extern void sparc_md_end (void); 156#define md_end() sparc_md_end () 157 158#endif 159 160#ifdef OBJ_ELF 161#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) sparc_cons (EXP, NBYTES) 162extern void sparc_cons (expressionS *, int); 163#endif 164 165#define TC_CONS_FIX_NEW cons_fix_new_sparc 166extern void cons_fix_new_sparc 167 (struct frag *, int, unsigned int, struct expressionS *); 168 169#define TC_FIX_TYPE valueT 170 171#define TC_INIT_FIX_DATA(X) \ 172 do \ 173 { \ 174 (X)->tc_fix_data = 0; \ 175 } \ 176 while (0) 177 178#define TC_FIX_DATA_PRINT(FILE, FIX) \ 179 do \ 180 { \ 181 fprintf ((FILE), "addend2=%ld\n", \ 182 (unsigned long) (FIX)->tc_fix_data); \ 183 } \ 184 while (0) 185 186#define TARGET_USE_CFIPOP 1 187 188#define tc_cfi_frame_initial_instructions sparc_cfi_frame_initial_instructions 189extern void sparc_cfi_frame_initial_instructions (void); 190 191#define tc_regname_to_dw2regnum sparc_regname_to_dw2regnum 192extern int sparc_regname_to_dw2regnum (char *regname); 193 194#define tc_cfi_emit_pcrel_expr sparc_cfi_emit_pcrel_expr 195extern void sparc_cfi_emit_pcrel_expr (expressionS *, unsigned int); 196 197extern int sparc_cie_data_alignment; 198 199#define DWARF2_LINE_MIN_INSN_LENGTH 4 200#define DWARF2_DEFAULT_RETURN_COLUMN 15 201#define DWARF2_CIE_DATA_ALIGNMENT sparc_cie_data_alignment 202 203/* end of tc-sparc.h */ 204