bfd/libaout.h

   1 /* BFD back-end data structures for a.out (and similar) files.
   2    Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 1998
   3    Free Software Foundation, Inc.
   4    Written by Cygnus Support.
   5
   6 This file is part of BFD, the Binary File Descriptor library.
   7
   8 This program is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2 of the License, or
  11 (at your option) any later version.
  12
  13 This program is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with this program; if not, write to the Free Software
  20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  21
  22 #ifndef LIBAOUT_H
  23 #define LIBAOUT_H
  24
  25 /* We try to encapsulate the differences in the various a.out file
  26    variants in a few routines, and otherwise share large masses of code.
  27    This means we only have to fix bugs in one place, most of the time.  */
  28
  29 #include "bfdlink.h"
  30
  31 /* Parameterize the a.out code based on whether it is being built
  32    for a 32-bit architecture or a 64-bit architecture.  */
  33 #if ARCH_SIZE==64
  34 #define GET_WORD bfd_h_get_64
  35 #define GET_SWORD bfd_h_get_signed_64
  36 #define PUT_WORD bfd_h_put_64
  37 #ifndef NAME
  38 #define NAME(x,y) CAT3(x,_64_,y)
  39 #endif
  40 #define JNAME(x) CAT(x,_64)
  41 #define BYTES_IN_WORD 8
  42 #else /* ARCH_SIZE == 32 */
  43 #define GET_WORD bfd_h_get_32
  44 #define GET_SWORD bfd_h_get_signed_32
  45 #define PUT_WORD bfd_h_put_32
  46 #ifndef NAME
  47 #define NAME(x,y) CAT3(x,_32_,y)
  48 #endif
  49 #define JNAME(x) CAT(x,_32)
  50 #define BYTES_IN_WORD 4
  51 #endif /* ARCH_SIZE==32 */
  52
  53 /* Declare at file level, since used in parameter lists, which have
  54    weird scope.  */
  55 struct external_exec;
  56 struct external_nlist;
  57 struct reloc_ext_external;
  58 struct reloc_std_external;
  59 \f
  60 /* a.out backend linker hash table entries.  */
  61
  62 struct aout_link_hash_entry
  63 {
  64   struct bfd_link_hash_entry root;
  65   /* Whether this symbol has been written out.  */
  66   boolean written;
  67   /* Symbol index in output file.  */
  68   int indx;
  69 };
  70
  71 /* a.out backend linker hash table.  */
  72
  73 struct aout_link_hash_table
  74 {
  75   struct bfd_link_hash_table root;
  76 };
  77
  78 /* Look up an entry in an a.out link hash table.  */
  79
  80 #define aout_link_hash_lookup(table, string, create, copy, follow) \
  81   ((struct aout_link_hash_entry *) \
  82    bfd_link_hash_lookup (&(table)->root, (string), (create), (copy), (follow)))
  83
  84 /* Traverse an a.out link hash table.  */
  85
  86 #define aout_link_hash_traverse(table, func, info)                      \
  87   (bfd_link_hash_traverse                                               \
  88    (&(table)->root,                                                     \
  89     (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func),  \
  90     (info)))
  91
  92 /* Get the a.out link hash table from the info structure.  This is
  93    just a cast.  */
  94
  95 #define aout_hash_table(p) ((struct aout_link_hash_table *) ((p)->hash))
  96 \f
  97 /* Back-end information for various a.out targets.  */
  98 struct aout_backend_data
  99 {
 100   /* Are ZMAGIC files mapped contiguously?  If so, the text section may
 101      need more padding, if the segment size (granularity for memory access
 102      control) is larger than the page size.  */
 103   unsigned char zmagic_mapped_contiguous;
 104   /* If this flag is set, ZMAGIC/NMAGIC file headers get mapped in with the
 105      text section, which starts immediately after the file header.
 106      If not, the text section starts on the next page.  */
 107   unsigned char text_includes_header;
 108
 109   /* If this flag is set, then if the entry address is not in the
 110      first SEGMENT_SIZE bytes of the text section, it is taken to be
 111      the address of the start of the text section.  This can be useful
 112      for kernels.  */
 113   unsigned char entry_is_text_address;
 114
 115   /* The value to pass to N_SET_FLAGS.  */
 116   unsigned char exec_hdr_flags;
 117
 118   /* If the text section VMA isn't specified, and we need an absolute
 119      address, use this as the default.  If we're producing a relocatable
 120      file, zero is always used.  */
 121   /* ?? Perhaps a callback would be a better choice?  Will this do anything
 122      reasonable for a format that handles multiple CPUs with different
 123      load addresses for each?  */
 124   bfd_vma default_text_vma;
 125
 126   /* Callback for setting the page and segment sizes, if they can't be
 127      trivially determined from the architecture.  */
 128   boolean (*set_sizes) PARAMS ((bfd *));
 129
 130   /* zmagic files only. For go32, the length of the exec header contributes
 131      to the size of the text section in the file for alignment purposes but
 132      does *not* get counted in the length of the text section. */
 133   unsigned char exec_header_not_counted;
 134
 135   /* Callback from the add symbols phase of the linker code to handle
 136      a dynamic object.  */
 137   boolean (*add_dynamic_symbols) PARAMS ((bfd *, struct bfd_link_info *,
 138                                           struct external_nlist **,
 139                                           bfd_size_type *, char **));
 140
 141   /* Callback from the add symbols phase of the linker code to handle
 142      adding a single symbol to the global linker hash table.  */
 143   boolean (*add_one_symbol) PARAMS ((struct bfd_link_info *, bfd *,
 144                                      const char *, flagword, asection *,
 145                                      bfd_vma, const char *, boolean,
 146                                      boolean,
 147                                      struct bfd_link_hash_entry **));
 148
 149   /* Called to handle linking a dynamic object.  */
 150   boolean (*link_dynamic_object) PARAMS ((struct bfd_link_info *, bfd *));
 151
 152   /* Called for each global symbol being written out by the linker.
 153      This should write out the dynamic symbol information.  */
 154   boolean (*write_dynamic_symbol) PARAMS ((bfd *, struct bfd_link_info *,
 155                                            struct aout_link_hash_entry *));
 156
 157   /* If this callback is not NULL, the linker calls it for each reloc.
 158      RELOC is a pointer to the unswapped reloc.  If *SKIP is set to
 159      true, the reloc will be skipped.  *RELOCATION may be changed to
 160      change the effects of the relocation.  */
 161   boolean (*check_dynamic_reloc) PARAMS ((struct bfd_link_info *info,
 162                                           bfd *input_bfd,
 163                                           asection *input_section,
 164                                           struct aout_link_hash_entry *h,
 165                                           PTR reloc, bfd_byte *contents,
 166                                           boolean *skip,
 167                                           bfd_vma *relocation));
 168
 169   /* Called at the end of a link to finish up any dynamic linking
 170      information.  */
 171   boolean (*finish_dynamic_link) PARAMS ((bfd *, struct bfd_link_info *));
 172 };
 173 #define aout_backend_info(abfd) \
 174         ((CONST struct aout_backend_data *)((abfd)->xvec->backend_data))
 175
 176 /* This is the layout in memory of a "struct exec" while we process it.
 177    All 'lengths' are given as a number of bytes.
 178    All 'alignments' are for relinkable files only;  an alignment of
 179         'n' indicates the corresponding segment must begin at an
 180         address that is a multiple of (2**n).  */
 181
 182 struct internal_exec
 183 {
 184     long a_info;                /* Magic number and flags, packed */
 185     bfd_vma a_text;             /* length of text, in bytes  */
 186     bfd_vma a_data;             /* length of data, in bytes  */
 187     bfd_vma a_bss;              /* length of uninitialized data area in mem */
 188     bfd_vma a_syms;             /* length of symbol table data in file */
 189     bfd_vma a_entry;            /* start address */
 190     bfd_vma a_trsize;           /* length of text's relocation info, in bytes */
 191     bfd_vma a_drsize;           /* length of data's relocation info, in bytes */
 192     /* Added for i960 */
 193     bfd_vma a_tload;            /* Text runtime load address */
 194     bfd_vma a_dload;            /* Data runtime load address */
 195     unsigned char a_talign;     /* Alignment of text segment */
 196     unsigned char a_dalign;     /* Alignment of data segment */
 197     unsigned char a_balign;     /* Alignment of bss segment */
 198     char a_relaxable;           /* Enough info for linker relax */
 199 };
 200
 201 /* Magic number is written
 202 < MSB          >
 203 3130292827262524232221201918171615141312111009080706050403020100
 204 < FLAGS        >< MACHINE TYPE ><  MAGIC NUMBER                >
 205 */
 206 /* Magic number for NetBSD is
 207 <MSB           >
 208 3130292827262524232221201918171615141312111009080706050403020100
 209 < FLAGS    >< MACHINE TYPE     ><  MAGIC NUMBER                >
 210 */
 211
 212 enum machine_type {
 213   M_UNKNOWN = 0,
 214   M_68010 = 1,
 215   M_68020 = 2,
 216   M_SPARC = 3,
 217   /* skip a bunch so we don't run into any of suns numbers */
 218   /* make these up for the ns32k*/
 219   M_NS32032 = (64),             /* ns32032 running ? */
 220   M_NS32532 = (64 + 5),         /* ns32532 running mach */
 221
 222   M_386 = 100,
 223   M_29K = 101,          /* AMD 29000 */
 224   M_386_DYNIX = 102,    /* Sequent running dynix */
 225   M_ARM = 103,          /* Advanced Risc Machines ARM */
 226   M_SPARCLET = 131,     /* SPARClet = M_SPARC + 128 */
 227   M_386_NETBSD = 134,   /* NetBSD/i386 binary */
 228   M_68K_NETBSD = 135,   /* NetBSD/m68k binary */
 229   M_68K4K_NETBSD = 136, /* NetBSD/m68k4k binary */
 230   M_532_NETBSD = 137,   /* NetBSD/ns32k binary */
 231   M_SPARC_NETBSD = 138, /* NetBSD/sparc binary */
 232   M_PMAX_NETBSD = 139,  /* NetBSD/pmax (MIPS little-endian) binary */
 233   M_VAX_NETBSD = 140,   /* NetBSD/vax binary */
 234   M_ALPHA_NETBSD = 141, /* NetBSD/alpha binary */
 235   M_ARM6_NETBSD = 143,  /* NetBSD/arm32 binary */
 236   M_SPARCLET_1 = 147,   /* 0x93, reserved */
 237   M_MIPS1 = 151,        /* MIPS R2000/R3000 binary */
 238   M_MIPS2 = 152,        /* MIPS R4000/R6000 binary */
 239   M_SPARCLET_2 = 163,   /* 0xa3, reserved */
 240   M_SPARCLET_3 = 179,   /* 0xb3, reserved */
 241   M_SPARCLET_4 = 195,   /* 0xc3, reserved */
 242   M_HP200 = 200,        /* HP 200 (68010) BSD binary */
 243   M_HP300 = (300 % 256), /* HP 300 (68020+68881) BSD binary */
 244   M_HPUX = (0x20c % 256), /* HP 200/300 HPUX binary */
 245   M_SPARCLET_5 = 211,   /* 0xd3, reserved */
 246   M_SPARCLET_6 = 227,   /* 0xe3, reserved */
 247   /*  M_SPARCLET_7 = 243        / * 0xf3, reserved */
 248   M_SPARCLITE_LE = 243
 249 };
 250
 251 #define N_DYNAMIC(exec) ((exec).a_info & 0x80000000)
 252
 253 #ifndef N_MAGIC
 254 # define N_MAGIC(exec) ((exec).a_info & 0xffff)
 255 #endif
 256
 257 #ifndef N_MACHTYPE
 258 # define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff))
 259 #endif
 260
 261 #ifndef N_FLAGS
 262 # define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff)
 263 #endif
 264
 265 #ifndef N_SET_INFO
 266 # define N_SET_INFO(exec, magic, type, flags) \
 267 ((exec).a_info = ((magic) & 0xffff) \
 268  | (((int)(type) & 0xff) << 16) \
 269  | (((flags) & 0xff) << 24))
 270 #endif
 271
 272 #ifndef N_SET_DYNAMIC
 273 # define N_SET_DYNAMIC(exec, dynamic) \
 274 ((exec).a_info = (dynamic) ? ((exec).a_info | 0x80000000) : \
 275 ((exec).a_info & 0x7fffffff))
 276 #endif
 277
 278 #ifndef N_SET_MAGIC
 279 # define N_SET_MAGIC(exec, magic) \
 280 ((exec).a_info = (((exec).a_info & 0xffff0000) | ((magic) & 0xffff)))
 281 #endif
 282
 283 #ifndef N_SET_MACHTYPE
 284 # define N_SET_MACHTYPE(exec, machtype) \
 285 ((exec).a_info = \
 286  ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16))
 287 #endif
 288
 289 #ifndef N_SET_FLAGS
 290 # define N_SET_FLAGS(exec, flags) \
 291 ((exec).a_info = \
 292  ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24))
 293 #endif
 294
 295 typedef struct aout_symbol {
 296   asymbol symbol;
 297   short desc;
 298   char other;
 299   unsigned char type;
 300 } aout_symbol_type;
 301
 302 /* The `tdata' struct for all a.out-like object file formats.
 303    Various things depend on this struct being around any time an a.out
 304    file is being handled.  An example is dbxread.c in GDB.  */
 305
 306 struct aoutdata {
 307   struct internal_exec *hdr;            /* exec file header */
 308   aout_symbol_type *symbols;            /* symtab for input bfd */
 309
 310   /* For ease, we do this */
 311   asection *textsec;
 312   asection *datasec;
 313   asection *bsssec;
 314
 315   /* We remember these offsets so that after check_file_format, we have
 316      no dependencies on the particular format of the exec_hdr.  */
 317   file_ptr sym_filepos;
 318   file_ptr str_filepos;
 319
 320   /* Size of a relocation entry in external form */
 321   unsigned reloc_entry_size;
 322
 323   /* Size of a symbol table entry in external form */
 324   unsigned symbol_entry_size;
 325
 326   /* Page size - needed for alignment of demand paged files. */
 327   unsigned long page_size;
 328
 329   /* Segment size - needed for alignment of demand paged files. */
 330   unsigned long segment_size;
 331
 332   /* Zmagic disk block size - need to align the start of the text
 333      section in ZMAGIC binaries.  Normally the same as page_size.  */
 334   unsigned long zmagic_disk_block_size;
 335
 336   unsigned exec_bytes_size;
 337   unsigned vma_adjusted : 1;
 338
 339   /* used when a bfd supports several highly similar formats */
 340   enum
 341     {
 342       default_format = 0,
 343       /* Used on HP 9000/300 running HP/UX.  See hp300hpux.c.  */
 344       gnu_encap_format,
 345       /* Used on Linux, 386BSD, etc.  See include/aout/aout64.h.  */
 346       q_magic_format
 347     } subformat;
 348
 349   enum
 350     {
 351       undecided_magic = 0,
 352       z_magic,
 353       o_magic,
 354       n_magic
 355     } magic;
 356
 357   /* A buffer for find_nearest_line.  */
 358   char *line_buf;
 359
 360   /* The external symbol information.  */
 361   struct external_nlist *external_syms;
 362   bfd_size_type external_sym_count;
 363   bfd_window sym_window;
 364   char *external_strings;
 365   bfd_size_type external_string_size;
 366   bfd_window string_window;
 367   struct aout_link_hash_entry **sym_hashes;
 368
 369   /* A pointer for shared library information.  */
 370   PTR dynamic_info;
 371
 372   /* A mapping from local symbols to offsets into the global offset
 373      table, used when linking on SunOS.  This is indexed by the symbol
 374      index.  */
 375   bfd_vma *local_got_offsets;
 376 };
 377
 378 struct  aout_data_struct {
 379     struct aoutdata a;
 380     struct internal_exec e;
 381 };
 382
 383 #define adata(bfd)              ((bfd)->tdata.aout_data->a)
 384 #define exec_hdr(bfd)           (adata(bfd).hdr)
 385 #define obj_aout_symbols(bfd)   (adata(bfd).symbols)
 386 #define obj_textsec(bfd)        (adata(bfd).textsec)
 387 #define obj_datasec(bfd)        (adata(bfd).datasec)
 388 #define obj_bsssec(bfd)         (adata(bfd).bsssec)
 389 #define obj_sym_filepos(bfd)    (adata(bfd).sym_filepos)
 390 #define obj_str_filepos(bfd)    (adata(bfd).str_filepos)
 391 #define obj_reloc_entry_size(bfd) (adata(bfd).reloc_entry_size)
 392 #define obj_symbol_entry_size(bfd) (adata(bfd).symbol_entry_size)
 393 #define obj_aout_subformat(bfd) (adata(bfd).subformat)
 394 #define obj_aout_external_syms(bfd) (adata(bfd).external_syms)
 395 #define obj_aout_external_sym_count(bfd) (adata(bfd).external_sym_count)
 396 #define obj_aout_sym_window(bfd) (adata(bfd).sym_window)
 397 #define obj_aout_external_strings(bfd) (adata(bfd).external_strings)
 398 #define obj_aout_external_string_size(bfd) (adata(bfd).external_string_size)
 399 #define obj_aout_string_window(bfd) (adata(bfd).string_window)
 400 #define obj_aout_sym_hashes(bfd) (adata(bfd).sym_hashes)
 401 #define obj_aout_dynamic_info(bfd) (adata(bfd).dynamic_info)
 402
 403 /* We take the address of the first element of an asymbol to ensure that the
 404    macro is only ever applied to an asymbol */
 405 #define aout_symbol(asymbol) ((aout_symbol_type *)(&(asymbol)->the_bfd))
 406
 407 /* Information we keep for each a.out section.  This is currently only
 408    used by the a.out backend linker.  */
 409
 410 struct aout_section_data_struct
 411 {
 412   /* The unswapped relocation entries for this section.  */
 413   PTR relocs;
 414 };
 415
 416 #define aout_section_data(s) \
 417   ((struct aout_section_data_struct *) (s)->used_by_bfd)
 418
 419 #define set_aout_section_data(s,v) \
 420   ((s)->used_by_bfd = (PTR)&(v)->relocs)
 421
 422 /* Prototype declarations for functions defined in aoutx.h  */
 423
 424 boolean
 425 NAME(aout,squirt_out_relocs) PARAMS ((bfd *abfd, asection *section));
 426
 427 boolean
 428 NAME(aout,make_sections) PARAMS ((bfd *));
 429
 430 const bfd_target *
 431 NAME(aout,some_aout_object_p) PARAMS ((bfd *abfd,
 432                                        struct internal_exec *execp,
 433                                        const bfd_target *(*callback)(bfd *)));
 434
 435 boolean
 436 NAME(aout,mkobject) PARAMS ((bfd *abfd));
 437
 438 enum machine_type
 439 NAME(aout,machine_type) PARAMS ((enum bfd_architecture arch,
 440                                  unsigned long machine,
 441                                  boolean *unknown));
 442
 443 boolean
 444 NAME(aout,set_arch_mach) PARAMS ((bfd *abfd, enum bfd_architecture arch,
 445                                   unsigned long machine));
 446
 447 boolean
 448 NAME(aout,new_section_hook) PARAMS ((bfd *abfd, asection *newsect));
 449
 450 boolean
 451 NAME(aout,set_section_contents) PARAMS ((bfd *abfd, sec_ptr section,
 452                          PTR location, file_ptr offset, bfd_size_type count));
 453
 454 asymbol *
 455 NAME(aout,make_empty_symbol) PARAMS ((bfd *abfd));
 456
 457 boolean
 458 NAME(aout,translate_symbol_table) PARAMS ((bfd *, aout_symbol_type *,
 459                                            struct external_nlist *,
 460                                            bfd_size_type, char *,
 461                                            bfd_size_type,
 462                                            boolean dynamic));
 463
 464 boolean
 465 NAME(aout,slurp_symbol_table) PARAMS ((bfd *abfd));
 466
 467 boolean
 468 NAME(aout,write_syms) PARAMS ((bfd *abfd));
 469
 470 void
 471 NAME(aout,reclaim_symbol_table) PARAMS ((bfd *abfd));
 472
 473 long
 474 NAME(aout,get_symtab_upper_bound) PARAMS ((bfd *abfd));
 475
 476 long
 477 NAME(aout,get_symtab) PARAMS ((bfd *abfd, asymbol **location));
 478
 479 void
 480 NAME(aout,swap_ext_reloc_in) PARAMS ((bfd *, struct reloc_ext_external *,
 481                                       arelent *, asymbol **, bfd_size_type));
 482 void
 483 NAME(aout,swap_std_reloc_in) PARAMS ((bfd *, struct reloc_std_external *,
 484                                       arelent *, asymbol **, bfd_size_type));
 485
 486 reloc_howto_type *
 487 NAME(aout,reloc_type_lookup) PARAMS ((bfd *abfd,
 488                                       bfd_reloc_code_real_type code));
 489
 490 boolean
 491 NAME(aout,slurp_reloc_table) PARAMS ((bfd *abfd, sec_ptr asect,
 492                                       asymbol **symbols));
 493
 494 long
 495 NAME(aout,canonicalize_reloc) PARAMS ((bfd *abfd, sec_ptr section,
 496                                        arelent **relptr, asymbol **symbols));
 497
 498 long
 499 NAME(aout,get_reloc_upper_bound) PARAMS ((bfd *abfd, sec_ptr asect));
 500
 501 void
 502 NAME(aout,reclaim_reloc) PARAMS ((bfd *ignore_abfd, sec_ptr ignore));
 503
 504 alent *
 505 NAME(aout,get_lineno) PARAMS ((bfd *ignore_abfd, asymbol *ignore_symbol));
 506
 507 void
 508 NAME(aout,print_symbol) PARAMS ((bfd *ignore_abfd, PTR file,
 509                             asymbol *symbol, bfd_print_symbol_type how));
 510
 511 void
 512 NAME(aout,get_symbol_info) PARAMS ((bfd *ignore_abfd,
 513                            asymbol *symbol, symbol_info *ret));
 514
 515 boolean
 516 NAME(aout,find_nearest_line) PARAMS ((bfd *abfd, asection *section,
 517       asymbol **symbols, bfd_vma offset, CONST char **filename_ptr,
 518       CONST char **functionname_ptr, unsigned int *line_ptr));
 519
 520 long
 521 NAME(aout,read_minisymbols) PARAMS ((bfd *, boolean, PTR *, unsigned int *));
 522
 523 asymbol *
 524 NAME(aout,minisymbol_to_symbol) PARAMS ((bfd *, boolean, const PTR,
 525                                          asymbol *));
 526
 527 int
 528 NAME(aout,sizeof_headers) PARAMS ((bfd *abfd, boolean exec));
 529
 530 boolean
 531 NAME(aout,adjust_sizes_and_vmas) PARAMS ((bfd *abfd,
 532        bfd_size_type *text_size, file_ptr *text_end));
 533
 534 void
 535 NAME(aout,swap_exec_header_in) PARAMS ((bfd *abfd,
 536        struct external_exec *raw_bytes, struct internal_exec *execp));
 537
 538 void
 539 NAME(aout,swap_exec_header_out) PARAMS ((bfd *abfd,
 540        struct internal_exec *execp, struct external_exec *raw_bytes));
 541
 542 struct bfd_hash_entry *
 543 NAME(aout,link_hash_newfunc)
 544   PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
 545
 546 boolean
 547 NAME(aout,link_hash_table_init)
 548      PARAMS ((struct aout_link_hash_table *, bfd *,
 549               struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 550                                           struct bfd_hash_table *,
 551                                           const char *)));
 552
 553 struct bfd_link_hash_table *
 554 NAME(aout,link_hash_table_create) PARAMS ((bfd *));
 555
 556 boolean
 557 NAME(aout,link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
 558
 559 boolean
 560 NAME(aout,final_link) PARAMS ((bfd *, struct bfd_link_info *,
 561                                void (*) (bfd *, file_ptr *, file_ptr *,
 562                                          file_ptr *)));
 563
 564 boolean
 565 NAME(aout,bfd_free_cached_info) PARAMS ((bfd *));
 566
 567 /* A.out uses the generic versions of these routines... */
 568
 569 #define aout_32_get_section_contents    _bfd_generic_get_section_contents
 570
 571 #define aout_64_get_section_contents    _bfd_generic_get_section_contents
 572 #ifndef NO_WRITE_HEADER_KLUDGE
 573 #define NO_WRITE_HEADER_KLUDGE 0
 574 #endif
 575
 576 #ifndef aout_32_bfd_is_local_label_name
 577 #define aout_32_bfd_is_local_label_name bfd_generic_is_local_label_name
 578 #endif
 579
 580 #ifndef WRITE_HEADERS
 581 #define WRITE_HEADERS(abfd, execp)                                            \
 582       {                                                                       \
 583         bfd_size_type text_size; /* dummy vars */                             \
 584         file_ptr text_end;                                                    \
 585         if (adata(abfd).magic == undecided_magic)                             \
 586           NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);     \
 587                                                                               \
 588         execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE;        \
 589         execp->a_entry = bfd_get_start_address (abfd);                        \
 590                                                                               \
 591         execp->a_trsize = ((obj_textsec (abfd)->reloc_count) *                \
 592                            obj_reloc_entry_size (abfd));                      \
 593         execp->a_drsize = ((obj_datasec (abfd)->reloc_count) *                \
 594                            obj_reloc_entry_size (abfd));                      \
 595         NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes);           \
 596                                                                               \
 597         if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) return false;       \
 598         if (bfd_write ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)           \
 599             != EXEC_BYTES_SIZE)                                               \
 600           return false;                                                       \
 601         /* Now write out reloc info, followed by syms and strings */          \
 602                                                                               \
 603         if (bfd_get_outsymbols (abfd) != (asymbol **) NULL                    \
 604             && bfd_get_symcount (abfd) != 0)                                  \
 605           {                                                                   \
 606             if (bfd_seek (abfd, (file_ptr)(N_SYMOFF(*execp)), SEEK_SET) != 0) \
 607               return false;                                                   \
 608                                                                               \
 609             if (! NAME(aout,write_syms)(abfd)) return false;                  \
 610           }                                                                   \
 611                                                                               \
 612         if (bfd_seek (abfd, (file_ptr)(N_TRELOFF(*execp)), SEEK_SET) != 0)    \
 613           return false;                                                       \
 614         if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd)))         \
 615           return false;                                                       \
 616                                                                               \
 617         if (bfd_seek (abfd, (file_ptr)(N_DRELOFF(*execp)), SEEK_SET) != 0)    \
 618           return false;                                                       \
 619         if (!NAME(aout,squirt_out_relocs)(abfd, obj_datasec (abfd)))          \
 620           return false;                                                       \
 621       }
 622 #endif
 623
 624 #endif /* ! defined (LIBAOUT_H) */