| 1 | /* BFD XCOFF object file private structure. |
| 2 | Copyright (C) 2001 Free Software Foundation, Inc. |
| 3 | Written by Tom Rix, Redhat. |
| 4 | |
| 5 | This file is part of BFD, the Binary File Descriptor library. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | #ifndef LIBXCOFF_H |
| 22 | #define LIBXCOFF_H |
| 23 | |
| 24 | /* This is the backend information kept for XCOFF files. This |
| 25 | structure is constant for a particular backend. The first element |
| 26 | is the COFF backend data structure, so that XCOFF targets can use |
| 27 | the generic COFF code. */ |
| 28 | |
| 29 | struct xcoff_backend_data_rec |
| 30 | { |
| 31 | /* |
| 32 | * COFF backend information. Must be the first field. |
| 33 | * This is where the std coff swap table goes |
| 34 | */ |
| 35 | bfd_coff_backend_data coff; |
| 36 | |
| 37 | /* Magic number */ |
| 38 | unsigned short _xcoff_magic_number; |
| 39 | |
| 40 | /* Architecture and machine for coff_set_arch_mach_hook */ |
| 41 | enum bfd_architecture _xcoff_architecture; |
| 42 | long _xcoff_machine; |
| 43 | |
| 44 | /* function pointers to xcoff specific swap routines */ |
| 45 | void (* _xcoff_swap_ldhdr_in)(bfd *, const PTR, struct internal_ldhdr *); |
| 46 | void (* _xcoff_swap_ldhdr_out)(bfd *, const struct internal_ldhdr *, PTR); |
| 47 | void (* _xcoff_swap_ldsym_in)(bfd *, const PTR, struct internal_ldsym *); |
| 48 | void (* _xcoff_swap_ldsym_out)(bfd *, const struct internal_ldsym *, PTR); |
| 49 | void (* _xcoff_swap_ldrel_in)(bfd *, const PTR, struct internal_ldrel *); |
| 50 | void (* _xcoff_swap_ldrel_out)(bfd *, const struct internal_ldrel *, PTR); |
| 51 | |
| 52 | /* size of the the external struct */ |
| 53 | unsigned int _xcoff_ldhdrsz; |
| 54 | unsigned int _xcoff_ldsymsz; |
| 55 | unsigned int _xcoff_ldrelsz; |
| 56 | |
| 57 | /* size an entry in a descriptor section */ |
| 58 | unsigned int _xcoff_function_descriptor_size; |
| 59 | |
| 60 | /* size of the small aout file header */ |
| 61 | unsigned int _xcoff_small_aout_header_size; |
| 62 | |
| 63 | /* |
| 64 | * version |
| 65 | * loader version |
| 66 | * 1 : xcoff32 |
| 67 | * 2 : xcoff64 |
| 68 | */ |
| 69 | unsigned long _xcoff_ldhdr_version; |
| 70 | |
| 71 | boolean (* _xcoff_put_symbol_name)(bfd *, struct bfd_strtab_hash *, |
| 72 | struct internal_syment *, |
| 73 | const char *); |
| 74 | |
| 75 | boolean (* _xcoff_put_ldsymbol_name)(bfd *, struct xcoff_loader_info *, |
| 76 | struct internal_ldsym *, |
| 77 | const char *); |
| 78 | |
| 79 | reloc_howto_type *_xcoff_dynamic_reloc; |
| 80 | |
| 81 | asection * (* _xcoff_create_csect_from_smclas) (bfd *, union internal_auxent *, const char *); |
| 82 | |
| 83 | /* |
| 84 | * line_no and reloc overflow |
| 85 | * 32 overflows to another section when the line_no or reloc count go |
| 86 | * over 0xffff. 64 does not overflow. |
| 87 | */ |
| 88 | boolean (*_xcoff_is_lineno_count_overflow)(bfd *, bfd_vma); |
| 89 | boolean (*_xcoff_is_reloc_count_overflow)(bfd *, bfd_vma); |
| 90 | |
| 91 | /* |
| 92 | * .loader symbol table offset |
| 93 | * 32 is after the .loader header |
| 94 | * 64 is offset in .loader header |
| 95 | * |
| 96 | * Similar for the reloc table |
| 97 | */ |
| 98 | bfd_vma (*_xcoff_loader_symbol_offset)(bfd *, struct internal_ldhdr *); |
| 99 | bfd_vma (*_xcoff_loader_reloc_offset)(bfd *, struct internal_ldhdr *); |
| 100 | |
| 101 | |
| 102 | /* |
| 103 | * Global linkage |
| 104 | * |
| 105 | * The first word of global linkage code must be be modified by |
| 106 | * filling in the correct TOC offset. |
| 107 | */ |
| 108 | unsigned long *_xcoff_glink_code; |
| 109 | |
| 110 | /* |
| 111 | * Size of the global link code in bytes of the xcoff_glink_code table |
| 112 | */ |
| 113 | unsigned long _xcoff_glink_size; |
| 114 | |
| 115 | }; |
| 116 | |
| 117 | /* Look up an entry in an XCOFF link hash table. */ |
| 118 | |
| 119 | #define xcoff_link_hash_lookup(table, string, create, copy, follow) \ |
| 120 | ((struct xcoff_link_hash_entry *) \ |
| 121 | bfd_link_hash_lookup (&(table)->root, (string), (create), (copy),\ |
| 122 | (follow))) |
| 123 | |
| 124 | /* Traverse an XCOFF link hash table. */ |
| 125 | |
| 126 | #define xcoff_link_hash_traverse(table, func, info) \ |
| 127 | (bfd_link_hash_traverse \ |
| 128 | (&(table)->root, \ |
| 129 | (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \ |
| 130 | (info))) |
| 131 | |
| 132 | /* Get the XCOFF link hash table from the info structure. This is |
| 133 | just a cast. */ |
| 134 | |
| 135 | #define xcoff_hash_table(p) ((struct xcoff_link_hash_table *) ((p)->hash)) |
| 136 | |
| 137 | |
| 138 | #define xcoff_backend(abfd) \ |
| 139 | ((struct xcoff_backend_data_rec *) (abfd)->xvec->backend_data) |
| 140 | |
| 141 | #define bfd_xcoff_magic_number(a) ((xcoff_backend(a)->_xcoff_magic_number)) |
| 142 | #define bfd_xcoff_architecture(a) ((xcoff_backend(a)->_xcoff_architecture)) |
| 143 | #define bfd_xcoff_machine(a) ((xcoff_backend(a)->_xcoff_machine)) |
| 144 | |
| 145 | #define bfd_xcoff_swap_ldhdr_in(a, b, c) \ |
| 146 | ((xcoff_backend(a)->_xcoff_swap_ldhdr_in) ((a), (b), (c))) |
| 147 | |
| 148 | #define bfd_xcoff_swap_ldhdr_out(a, b, c) \ |
| 149 | ((xcoff_backend(a)->_xcoff_swap_ldhdr_out) ((a), (b), (c))) |
| 150 | |
| 151 | #define bfd_xcoff_swap_ldsym_in(a, b, c) \ |
| 152 | ((xcoff_backend(a)->_xcoff_swap_ldsym_in) ((a), (b), (c))) |
| 153 | |
| 154 | #define bfd_xcoff_swap_ldsym_out(a, b, c) \ |
| 155 | ((xcoff_backend(a)->_xcoff_swap_ldsym_out) ((a), (b), (c))) |
| 156 | |
| 157 | #define bfd_xcoff_swap_ldrel_in(a, b, c) \ |
| 158 | ((xcoff_backend(a)->_xcoff_swap_ldrel_in) ((a), (b), (c))) |
| 159 | |
| 160 | #define bfd_xcoff_swap_ldrel_out(a, b, c) \ |
| 161 | ((xcoff_backend(a)->_xcoff_swap_ldrel_out) ((a), (b), (c))) |
| 162 | |
| 163 | #define bfd_xcoff_ldhdrsz(a) ((xcoff_backend(a)->_xcoff_ldhdrsz)) |
| 164 | #define bfd_xcoff_ldsymsz(a) ((xcoff_backend(a)->_xcoff_ldsymsz)) |
| 165 | #define bfd_xcoff_ldrelsz(a) ((xcoff_backend(a)->_xcoff_ldrelsz)) |
| 166 | #define bfd_xcoff_function_descriptor_size(a) \ |
| 167 | ((xcoff_backend(a)->_xcoff_function_descriptor_size)) |
| 168 | #define bfd_xcoff_small_aout_header_size(a) \ |
| 169 | ((xcoff_backend(a)->_xcoff_small_aout_header_size)) |
| 170 | |
| 171 | #define bfd_xcoff_ldhdr_version(a) ((xcoff_backend(a)->_xcoff_ldhdr_version)) |
| 172 | |
| 173 | #define bfd_xcoff_put_symbol_name(a, b, c, d) \ |
| 174 | ((xcoff_backend(a)->_xcoff_put_symbol_name) ((a), (b), (c), (d))) |
| 175 | |
| 176 | #define bfd_xcoff_put_ldsymbol_name(a, b, c, d) \ |
| 177 | ((xcoff_backend(a)->_xcoff_put_ldsymbol_name) ((a), (b), (c), (d))) |
| 178 | |
| 179 | /* Get the XCOFF hash table entries for a BFD. */ |
| 180 | #define obj_xcoff_sym_hashes(bfd) \ |
| 181 | ((struct xcoff_link_hash_entry **) obj_coff_sym_hashes (bfd)) |
| 182 | |
| 183 | #define bfd_xcoff_dynamic_reloc_howto(a) \ |
| 184 | ((xcoff_backend(a)->_xcoff_dynamic_reloc)) |
| 185 | |
| 186 | #define bfd_xcoff_create_csect_from_smclas(a, b, c) \ |
| 187 | ((xcoff_backend(a)->_xcoff_create_csect_from_smclas((a), (b), (c)))) |
| 188 | |
| 189 | #define bfd_xcoff_is_lineno_count_overflow(a, b) \ |
| 190 | ((xcoff_backend(a)->_xcoff_is_lineno_count_overflow((a), (b)))) |
| 191 | |
| 192 | #define bfd_xcoff_is_reloc_count_overflow(a, b) \ |
| 193 | ((xcoff_backend(a)->_xcoff_is_reloc_count_overflow((a), (b)))) |
| 194 | |
| 195 | #define bfd_xcoff_loader_symbol_offset(a, b) \ |
| 196 | ((xcoff_backend(a)->_xcoff_loader_symbol_offset((a), (b)))) |
| 197 | |
| 198 | #define bfd_xcoff_loader_reloc_offset(a, b) \ |
| 199 | ((xcoff_backend(a)->_xcoff_loader_reloc_offset((a), (b)))) |
| 200 | |
| 201 | #define bfd_xcoff_glink_code(a, b) ((xcoff_backend(a)->_xcoff_glink_code[(b)])) |
| 202 | #define bfd_xcoff_glink_code_size(a) ((xcoff_backend(a)->_xcoff_glink_size)) |
| 203 | |
| 204 | #define bfd_xcoff_is_xcoff64(a) (0x01EF == (bfd_xcoff_magic_number(a))) |
| 205 | #define bfd_xcoff_is_xcoff32(a) (0x01DF == (bfd_xcoff_magic_number(a))) |
| 206 | |
| 207 | /* Functions in xcofflink.c. */ |
| 208 | |
| 209 | extern long _bfd_xcoff_get_dynamic_symtab_upper_bound PARAMS ((bfd *)); |
| 210 | extern long _bfd_xcoff_canonicalize_dynamic_symtab |
| 211 | PARAMS ((bfd *, asymbol **)); |
| 212 | extern long _bfd_xcoff_get_dynamic_reloc_upper_bound PARAMS ((bfd *)); |
| 213 | extern long _bfd_xcoff_canonicalize_dynamic_reloc |
| 214 | PARAMS ((bfd *, arelent **, asymbol **)); |
| 215 | extern struct bfd_link_hash_table *_bfd_xcoff_bfd_link_hash_table_create |
| 216 | PARAMS ((bfd *)); |
| 217 | extern boolean _bfd_xcoff_bfd_link_add_symbols |
| 218 | PARAMS ((bfd *, struct bfd_link_info *)); |
| 219 | extern boolean _bfd_xcoff_bfd_final_link |
| 220 | PARAMS ((bfd *, struct bfd_link_info *)); |
| 221 | extern boolean _bfd_xcoff_slurp_symbol_table |
| 222 | PARAMS ((bfd *)); |
| 223 | extern long _bfd_xcoff_get_symbol_table |
| 224 | PARAMS ((bfd *, asymbol **)); |
| 225 | extern asymbol *_bfd_xcoff_make_empty_symbol |
| 226 | PARAMS ((bfd *)); |
| 227 | extern long _bfd_xcoff_get_symbol_table_upper_bound |
| 228 | PARAMS ((bfd *)); |
| 229 | extern void _bfd_xcoff_print_symbol |
| 230 | PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type)); |
| 231 | extern void _bfd_xcoff_get_symbol_info |
| 232 | PARAMS ((bfd *, asymbol *, symbol_info *)); |
| 233 | extern long _bfd_xcoff_canonicalize_reloc |
| 234 | PARAMS((bfd *, sec_ptr, arelent **, asymbol **)); |
| 235 | extern reloc_howto_type *_bfd_xcoff_rtype_to_howto |
| 236 | PARAMS ((bfd *, asection *, struct internal_reloc *, |
| 237 | struct coff_link_hash_entry *, struct internal_syment *, |
| 238 | bfd_vma *)); |
| 239 | extern boolean _bfd_xcoff_set_section_contents |
| 240 | PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type)); |
| 241 | boolean _bfd_xcoff_write_object_contents PARAMS ((bfd *)); |
| 242 | |
| 243 | |
| 244 | /* XCOFF support routines for the linker. */ |
| 245 | |
| 246 | extern boolean bfd_xcoff_link_record_set |
| 247 | PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, |
| 248 | bfd_size_type)); |
| 249 | extern boolean bfd_xcoff_import_symbol |
| 250 | PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, |
| 251 | bfd_vma, const char *, const char *, const char *, unsigned int)); |
| 252 | extern boolean bfd_xcoff_export_symbol |
| 253 | PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *)); |
| 254 | extern boolean bfd_xcoff_link_count_reloc |
| 255 | PARAMS ((bfd *, struct bfd_link_info *, const char *)); |
| 256 | extern boolean bfd_xcoff_record_link_assignment |
| 257 | PARAMS ((bfd *, struct bfd_link_info *, const char *)); |
| 258 | extern boolean bfd_xcoff_size_dynamic_sections |
| 259 | PARAMS ((bfd *, struct bfd_link_info *, const char *, const char *, |
| 260 | unsigned long, unsigned long, unsigned long, boolean, |
| 261 | int, boolean, boolean, struct sec **)); |
| 262 | extern boolean xcoff_slurp_reloc_table |
| 263 | PARAMS ((bfd *, asection *, asymbol **)); |
| 264 | |
| 265 | #endif /* LIBXCOFF_H */ |