| 1 | /* tc-sparc.h - Macros and type defines for the sparc.
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| 2 | Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
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| 3 | 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
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| 4 |
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| 5 | This file is part of GAS, the GNU Assembler.
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| 6 |
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| 7 | GAS is free software; you can redistribute it and/or modify
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| 8 | it under the terms of the GNU General Public License as
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| 9 | published by the Free Software Foundation; either version 2,
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| 10 | or (at your option) any later version.
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| 11 |
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| 12 | GAS is distributed in the hope that it will be useful, but
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| 13 | WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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| 15 | the GNU General Public License for more details.
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| 16 |
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| 17 | You should have received a copy of the GNU General Public
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| 18 | License along with GAS; see the file COPYING. If not, write
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| 19 | to the Free Software Foundation, 59 Temple Place - Suite 330,
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| 20 | Boston, MA 02111-1307, USA. */
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| 21 |
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| 22 | #ifndef TC_SPARC
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| 23 | #define TC_SPARC 1
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| 24 |
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| 25 | #ifdef ANSI_PROTOTYPES
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| 26 | struct frag;
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| 27 | #endif
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| 28 |
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| 29 | /* This is used to set the default value for `target_big_endian'. */
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| 30 | #define TARGET_BYTES_BIG_ENDIAN 1
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| 31 |
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| 32 | #define LOCAL_LABELS_FB 1
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| 33 |
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| 34 | #define TARGET_ARCH bfd_arch_sparc
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| 35 |
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| 36 | extern const char *sparc_target_format PARAMS ((void));
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| 37 | #define TARGET_FORMAT sparc_target_format ()
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| 38 |
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| 39 | #define RELOC_EXPANSION_POSSIBLE
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| 40 | #define MAX_RELOC_EXPANSION 2
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| 41 |
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| 42 | #if 0
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| 43 | #ifdef TE_SPARCAOUT
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| 44 | /* Bi-endian support may eventually be unconditional, but until things are
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| 45 | working well it's only provided for targets that need it. */
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| 46 | #define SPARC_BIENDIAN
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| 47 | #endif
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| 48 | #endif
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| 49 | /* Make it unconditional and check if -EL is valid after option parsing */
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| 50 | #define SPARC_BIENDIAN
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| 51 |
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| 52 | #define WORKING_DOT_WORD
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| 53 |
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| 54 | #define md_convert_frag(b,s,f) \
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| 55 | as_fatal (_("sparc convert_frag\n"))
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| 56 | #define md_estimate_size_before_relax(f,s) \
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| 57 | (as_fatal (_("estimate_size_before_relax called")), 1)
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| 58 |
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| 59 | #define LISTING_HEADER "SPARC GAS "
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| 60 |
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| 61 | extern int sparc_pic_code;
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| 62 |
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| 63 | /* We require .word, et. al., to be aligned correctly. */
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| 64 | #define md_cons_align(nbytes) sparc_cons_align (nbytes)
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| 65 | extern void sparc_cons_align PARAMS ((int));
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| 66 |
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| 67 | #define HANDLE_ALIGN(fragp) sparc_handle_align (fragp)
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| 68 | extern void sparc_handle_align PARAMS ((struct frag *));
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| 69 |
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| 70 | #define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4 + 4)
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| 71 |
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| 72 | /* I know that "call 0" fails in sparc-coff if this doesn't return 1. I
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| 73 | don't know about other relocation types, or other formats, yet. */
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| 74 | #ifdef OBJ_COFF
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| 75 | #define TC_FORCE_RELOCATION_ABS(FIX) \
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| 76 | ((FIX)->fx_r_type == BFD_RELOC_32_PCREL_S2 \
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| 77 | || TC_FORCE_RELOCATION (FIX))
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| 78 |
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| 79 | #define RELOC_REQUIRES_SYMBOL
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| 80 | #endif
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| 81 |
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| 82 | #ifdef OBJ_AOUT
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| 83 | /* This expression evaluates to true if the relocation is for a local
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| 84 | object for which we still want to do the relocation at runtime.
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| 85 | False if we are willing to perform this relocation while building
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| 86 | the .o file. */
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| 87 |
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| 88 | #define TC_FORCE_RELOCATION_LOCAL(FIX) \
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| 89 | (!(FIX)->fx_pcrel \
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| 90 | || (FIX)->fx_plt \
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| 91 | || (sparc_pic_code \
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| 92 | && S_IS_EXTERNAL ((FIX)->fx_addsy)) \
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| 93 | || TC_FORCE_RELOCATION (FIX))
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| 94 | #endif
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| 95 |
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| 96 | #ifdef OBJ_ELF
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| 97 | /* Don't turn certain relocs into relocations against sections. This
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| 98 | is required for the dynamic linker to operate properly. When
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| 99 | generating PIC, we need to keep any non PC relative reloc. The PIC
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| 100 | part of this test must be parallel to the code in tc_gen_reloc which
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| 101 | converts relocations to GOT relocations. */
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| 102 | #define tc_fix_adjustable(FIX) \
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| 103 | ((FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \
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| 104 | && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \
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| 105 | && ((FIX)->fx_r_type < BFD_RELOC_SPARC_TLS_GD_HI22 \
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| 106 | || (FIX)->fx_r_type > BFD_RELOC_SPARC_TLS_TPOFF64) \
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| 107 | && (! sparc_pic_code \
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| 108 | || ((FIX)->fx_r_type != BFD_RELOC_HI22 \
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| 109 | && (FIX)->fx_r_type != BFD_RELOC_LO10 \
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| 110 | && (FIX)->fx_r_type != BFD_RELOC_SPARC13 \
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| 111 | && ((FIX)->fx_r_type != BFD_RELOC_32_PCREL_S2 \
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| 112 | || !generic_force_reloc (FIX)) \
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| 113 | && ((FIX)->fx_pcrel \
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| 114 | || ((FIX)->fx_subsy != NULL \
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| 115 | && (S_GET_SEGMENT ((FIX)->fx_subsy) \
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| 116 | == S_GET_SEGMENT ((FIX)->fx_addsy))) \
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| 117 | || S_IS_LOCAL ((FIX)->fx_addsy)))))
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| 118 |
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| 119 | /* Values passed to md_apply_fix3 don't include the symbol value. */
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| 120 | #define MD_APPLY_SYM_VALUE(FIX) 0
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| 121 |
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| 122 | /* Finish up the entire symtab. */
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| 123 | #define tc_adjust_symtab() sparc_adjust_symtab ()
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| 124 | extern void sparc_adjust_symtab PARAMS ((void));
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| 125 | #endif
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| 126 |
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| 127 | #ifdef OBJ_AOUT
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| 128 | /* When generating PIC code, we must not adjust any reloc which will
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| 129 | turn into a reloc against the global offset table, nor any reloc
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| 130 | which we will need if a symbol is overridden. */
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| 131 | #define tc_fix_adjustable(FIX) \
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| 132 | (! sparc_pic_code \
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| 133 | || ((FIX)->fx_pcrel \
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| 134 | && ((FIX)->fx_addsy == NULL \
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| 135 | || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
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| 136 | && ! S_IS_WEAK ((FIX)->fx_addsy)))) \
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| 137 | || (FIX)->fx_r_type == BFD_RELOC_16 \
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| 138 | || (FIX)->fx_r_type == BFD_RELOC_32)
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| 139 | #endif
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| 140 |
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| 141 | #define elf_tc_final_processing sparc_elf_final_processing
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| 142 | extern void sparc_elf_final_processing PARAMS ((void));
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| 143 |
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| 144 | #define md_operand(x)
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| 145 |
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| 146 | extern void sparc_md_end PARAMS ((void));
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| 147 | #define md_end() sparc_md_end ()
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| 148 |
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| 149 | #endif
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| 150 |
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| 151 | #ifdef OBJ_ELF
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| 152 | #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) sparc_cons (EXP, NBYTES)
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| 153 | extern void sparc_cons PARAMS ((expressionS *, int));
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| 154 | #endif
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| 155 |
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| 156 | #define TC_CONS_FIX_NEW cons_fix_new_sparc
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| 157 | extern void cons_fix_new_sparc
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| 158 | PARAMS ((struct frag *, int, unsigned int, struct expressionS *));
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| 159 |
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| 160 | #define TC_FIX_TYPE valueT
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| 161 |
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| 162 | #define TC_INIT_FIX_DATA(X) \
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| 163 | do \
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| 164 | { \
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| 165 | (X)->tc_fix_data = 0; \
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| 166 | } \
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| 167 | while (0)
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| 168 |
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| 169 | #define TC_FIX_DATA_PRINT(FILE, FIX) \
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| 170 | do \
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| 171 | { \
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| 172 | fprintf ((FILE), "addend2=%ld\n", \
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| 173 | (unsigned long) (FIX)->tc_fix_data); \
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| 174 | } \
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| 175 | while (0)
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| 176 |
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| 177 | #define DWARF2_LINE_MIN_INSN_LENGTH 4
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| 178 |
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| 179 | /* end of tc-sparc.h */
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