bfd/libaout.h

   1 /* BFD back-end data structures for a.out (and similar) files.
   2    Copyright 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
   3    Written by Cygnus Support.
   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 LIBAOUT_H
  22 #define LIBAOUT_H
  23
  24 /* We try to encapsulate the differences in the various a.out file
  25    variants in a few routines, and otherwise share large masses of code.
  26    This means we only have to fix bugs in one place, most of the time.  */
  27
  28 #include "bfdlink.h"
  29
  30 /* Parameterize the a.out code based on whether it is being built
  31    for a 32-bit architecture or a 64-bit architecture.  */
  32 #if ARCH_SIZE==64
  33 #define GET_WORD bfd_h_get_64
  34 #define GET_SWORD bfd_h_get_signed_64
  35 #define PUT_WORD bfd_h_put_64
  36 #ifndef NAME
  37 #define NAME(x,y) CAT3(x,_64_,y)
  38 #endif
  39 #define JNAME(x) CAT(x,_64)
  40 #define BYTES_IN_WORD 8
  41 #else /* ARCH_SIZE == 32 */
  42 #define GET_WORD bfd_h_get_32
  43 #define GET_SWORD bfd_h_get_signed_32
  44 #define PUT_WORD bfd_h_put_32
  45 #ifndef NAME
  46 #define NAME(x,y) CAT3(x,_32_,y)
  47 #endif
  48 #define JNAME(x) CAT(x,_32)
  49 #define BYTES_IN_WORD 4
  50 #endif /* ARCH_SIZE==32 */
  51
  52 /* Declare at file level, since used in parameter lists, which have
  53    weird scope.  */
  54 struct external_exec;
  55 struct external_nlist;
  56 struct reloc_ext_external;
  57 struct reloc_std_external;
  58 \f
  59 /* a.out backend linker hash table entries.  */
  60
  61 struct aout_link_hash_entry
  62 {
  63   struct bfd_link_hash_entry root;
  64   /* Whether this symbol has been written out.  */
  65   boolean written;
  66   /* Symbol index in output file.  */
  67   int indx;
  68 };
  69
  70 /* a.out backend linker hash table.  */
  71
  72 struct aout_link_hash_table
  73 {
  74   struct bfd_link_hash_table root;
  75 };
  76
  77 /* Look up an entry in an a.out link hash table.  */
  78
  79 #define aout_link_hash_lookup(table, string, create, copy, follow) \
  80   ((struct aout_link_hash_entry *) \
  81    bfd_link_hash_lookup (&(table)->root, (string), (create), (copy), (follow)))
  82
  83 /* Traverse an a.out link hash table.  */
  84
  85 #define aout_link_hash_traverse(table, func, info)                      \
  86   (bfd_link_hash_traverse                                               \
  87    (&(table)->root,                                                     \
  88     (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func),  \
  89     (info)))
  90
  91 /* Get the a.out link hash table from the info structure.  This is
  92    just a cast.  */
  93
  94 #define aout_hash_table(p) ((struct aout_link_hash_table *) ((p)->hash))
  95 \f
  96 /* Back-end information for various a.out targets.  */
  97 struct aout_backend_data
  98 {
  99   /* Are ZMAGIC files mapped contiguously?  If so, the text section may
 100      need more padding, if the segment size (granularity for memory access
 101      control) is larger than the page size.  */
 102   unsigned char zmagic_mapped_contiguous;
 103   /* If this flag is set, ZMAGIC/NMAGIC file headers get mapped in with the
 104      text section, which starts immediately after the file header.
 105      If not, the text section starts on the next page.  */
 106   unsigned char text_includes_header;
 107
 108   /* The value to pass to N_SET_FLAGS.  */
 109   unsigned char exec_hdr_flags;
 110
 111   /* If the text section VMA isn't specified, and we need an absolute
 112      address, use this as the default.  If we're producing a relocatable
 113      file, zero is always used.  */
 114   /* ?? Perhaps a callback would be a better choice?  Will this do anything
 115      reasonable for a format that handles multiple CPUs with different
 116      load addresses for each?  */
 117   bfd_vma default_text_vma;
 118
 119   /* Callback for setting the page and segment sizes, if they can't be
 120      trivially determined from the architecture.  */
 121   boolean (*set_sizes) PARAMS ((bfd *));
 122
 123   /* zmagic files only. For go32, the length of the exec header contributes
 124      to the size of the text section in the file for alignment purposes but
 125      does *not* get counted in the length of the text section. */
 126   unsigned char exec_header_not_counted;
 127
 128   /* Callback from the add symbols phase of the linker code to handle
 129      a dynamic object.  */
 130   boolean (*add_dynamic_symbols) PARAMS ((bfd *, struct bfd_link_info *,
 131                                           struct external_nlist **,
 132                                           bfd_size_type *, char **));
 133
 134   /* Callback from the add symbols phase of the linker code to handle
 135      adding a single symbol to the global linker hash table.  */
 136   boolean (*add_one_symbol) PARAMS ((struct bfd_link_info *, bfd *,
 137                                      const char *, flagword, asection *,
 138                                      bfd_vma, const char *, boolean,
 139                                      boolean,
 140                                      struct bfd_link_hash_entry **));
 141
 142   /* Called to handle linking a dynamic object.  */
 143   boolean (*link_dynamic_object) PARAMS ((struct bfd_link_info *, bfd *));
 144
 145   /* Called for each global symbol being written out by the linker.
 146      This should write out the dynamic symbol information.  */
 147   boolean (*write_dynamic_symbol) PARAMS ((bfd *, struct bfd_link_info *,
 148                                            struct aout_link_hash_entry *));
 149
 150   /* If this callback is not NULL, the linker calls it for each reloc.
 151      RELOC is a pointer to the unswapped reloc.  If *SKIP is set to
 152      true, the reloc will be skipped.  *RELOCATION may be changed to
 153      change the effects of the relocation.  */
 154   boolean (*check_dynamic_reloc) PARAMS ((struct bfd_link_info *info,
 155                                           bfd *input_bfd,
 156                                           asection *input_section,
 157                                           struct aout_link_hash_entry *h,
 158                                           PTR reloc, bfd_byte *contents,
 159                                           boolean *skip,
 160                                           bfd_vma *relocation));
 161
 162   /* Called at the end of a link to finish up any dynamic linking
 163      information.  */
 164   boolean (*finish_dynamic_link) PARAMS ((bfd *, struct bfd_link_info *));
 165 };
 166 #define aout_backend_info(abfd) \
 167         ((CONST struct aout_backend_data *)((abfd)->xvec->backend_data))
 168
 169 /* This is the layout in memory of a "struct exec" while we process it.
 170    All 'lengths' are given as a number of bytes.
 171    All 'alignments' are for relinkable files only;  an alignment of
 172         'n' indicates the corresponding segment must begin at an
 173         address that is a multiple of (2**n).  */
 174
 175 struct internal_exec
 176 {
 177     long a_info;                /* Magic number and flags, packed */
 178     bfd_vma a_text;             /* length of text, in bytes  */
 179     bfd_vma a_data;             /* length of data, in bytes  */
 180     bfd_vma a_bss;              /* length of uninitialized data area in mem */
 181     bfd_vma a_syms;             /* length of symbol table data in file */
 182     bfd_vma a_entry;            /* start address */
 183     bfd_vma a_trsize;           /* length of text's relocation info, in bytes */
 184     bfd_vma a_drsize;           /* length of data's relocation info, in bytes */
 185     /* Added for i960 */
 186     bfd_vma a_tload;            /* Text runtime load address */
 187     bfd_vma a_dload;            /* Data runtime load address */
 188     unsigned char a_talign;     /* Alignment of text segment */
 189     unsigned char a_dalign;     /* Alignment of data segment */
 190     unsigned char a_balign;     /* Alignment of bss segment */
 191     char a_relaxable;           /* Enough info for linker relax */
 192 };
 193
 194 /* Magic number is written
 195 < MSB          >
 196 3130292827262524232221201918171615141312111009080706050403020100
 197 < FLAGS        >< MACHINE TYPE ><  MAGIC NUMBER                >
 198 */
 199 /* Magic number for NetBSD is
 200 <MSB           >
 201 3130292827262524232221201918171615141312111009080706050403020100
 202 < FLAGS    >< MACHINE TYPE     ><  MAGIC NUMBER                >
 203 */
 204
 205 enum machine_type {
 206   M_UNKNOWN = 0,
 207   M_68010 = 1,
 208   M_68020 = 2,
 209   M_SPARC = 3,
 210   /* skip a bunch so we don't run into any of suns numbers */
 211   /* make these up for the ns32k*/
 212   M_NS32032 = (64),             /* ns32032 running ? */
 213   M_NS32532 = (64 + 5),         /* ns32532 running mach */
 214
 215   M_386 = 100,
 216   M_29K = 101,          /* AMD 29000 */
 217   M_386_DYNIX = 102,    /* Sequent running dynix */
 218   M_ARM = 103,          /* Advanced Risc Machines ARM */
 219   M_386_NETBSD = 134,   /* NetBSD/i386 binary */
 220   M_68K_NETBSD = 135,   /* NetBSD/m68k binary */
 221   M_68K4K_NETBSD = 136, /* NetBSD/m68k4k binary */
 222   M_532_NETBSD = 137,   /* NetBSD/ns32k binary */
 223   M_SPARC_NETBSD = 138, /* NetBSD/sparc binary */
 224   M_SPARCLET = 142,     /* SPARClet */
 225   M_MIPS1 = 151,        /* MIPS R2000/R3000 binary */
 226   M_MIPS2 = 152,        /* MIPS R4000/R6000 binary */
 227 /* start-sanitize-rce */
 228   M_RCE = 155,          /* Motorola RCE binary */
 229 /* end-sanitize-rce */
 230   M_HP200 = 200,        /* HP 200 (68010) BSD binary */
 231   M_HP300 = (300 % 256), /* HP 300 (68020+68881) BSD binary */
 232   M_HPUX = (0x20c % 256)/* HP 200/300 HPUX binary */
 233 };
 234
 235 #define N_DYNAMIC(exec) ((exec).a_info & 0x80000000)
 236
 237 #ifndef N_MAGIC
 238 # define N_MAGIC(exec) ((exec).a_info & 0xffff)
 239 #endif
 240
 241 #ifndef N_MACHTYPE
 242 # define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff))
 243 #endif
 244
 245 #ifndef N_FLAGS
 246 # define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff)
 247 #endif
 248
 249 #ifndef N_SET_INFO
 250 # define N_SET_INFO(exec, magic, type, flags) \
 251 ((exec).a_info = ((magic) & 0xffff) \
 252  | (((int)(type) & 0xff) << 16) \
 253  | (((flags) & 0xff) << 24))
 254 #endif
 255
 256 #ifndef N_SET_DYNAMIC
 257 # define N_SET_DYNAMIC(exec, dynamic) \
 258 ((exec).a_info = (dynamic) ? ((exec).a_info | 0x80000000) : \
 259 ((exec).a_info & 0x7fffffff))
 260 #endif
 261
 262 #ifndef N_SET_MAGIC
 263 # define N_SET_MAGIC(exec, magic) \
 264 ((exec).a_info = (((exec).a_info & 0xffff0000) | ((magic) & 0xffff)))
 265 #endif
 266
 267 #ifndef N_SET_MACHTYPE
 268 # define N_SET_MACHTYPE(exec, machtype) \
 269 ((exec).a_info = \
 270  ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16))
 271 #endif
 272
 273 #ifndef N_SET_FLAGS
 274 # define N_SET_FLAGS(exec, flags) \
 275 ((exec).a_info = \
 276  ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24))
 277 #endif
 278
 279 typedef struct aout_symbol {
 280   asymbol symbol;
 281   short desc;
 282   char other;
 283   unsigned char type;
 284 } aout_symbol_type;
 285
 286 /* The `tdata' struct for all a.out-like object file formats.
 287    Various things depend on this struct being around any time an a.out
 288    file is being handled.  An example is dbxread.c in GDB.  */
 289
 290 struct aoutdata {
 291   struct internal_exec *hdr;            /* exec file header */
 292   aout_symbol_type *symbols;            /* symtab for input bfd */
 293
 294   /* For ease, we do this */
 295   asection *textsec;
 296   asection *datasec;
 297   asection *bsssec;
 298
 299   /* We remember these offsets so that after check_file_format, we have
 300      no dependencies on the particular format of the exec_hdr.  */
 301   file_ptr sym_filepos;
 302   file_ptr str_filepos;
 303
 304   /* Size of a relocation entry in external form */
 305   unsigned reloc_entry_size;
 306
 307   /* Size of a symbol table entry in external form */
 308   unsigned symbol_entry_size;
 309
 310   /* Page size - needed for alignment of demand paged files. */
 311   unsigned long page_size;
 312
 313   /* Segment size - needed for alignment of demand paged files. */
 314   unsigned long segment_size;
 315
 316   /* Zmagic disk block size - need to align the start of the text
 317      section in ZMAGIC binaries.  Normally the same as page_size.  */
 318   unsigned long zmagic_disk_block_size;
 319
 320   unsigned exec_bytes_size;
 321   unsigned vma_adjusted : 1;
 322
 323   /* used when a bfd supports several highly similar formats */
 324   enum
 325     {
 326       default_format = 0,
 327       /* Used on HP 9000/300 running HP/UX.  See hp300hpux.c.  */
 328       gnu_encap_format,
 329       /* Used on Linux, 386BSD, etc.  See include/aout/aout64.h.  */
 330       q_magic_format
 331     } subformat;
 332
 333   enum
 334     {
 335       undecided_magic = 0,
 336       z_magic,
 337       o_magic,
 338       n_magic
 339     } magic;
 340
 341   /* A buffer for find_nearest_line.  */
 342   char *line_buf;
 343
 344   /* The external symbol information.  */
 345   struct external_nlist *external_syms;
 346   bfd_size_type external_sym_count;
 347   bfd_window sym_window;
 348   char *external_strings;
 349   bfd_size_type external_string_size;
 350   bfd_window string_window;
 351   struct aout_link_hash_entry **sym_hashes;
 352
 353   /* A pointer for shared library information.  */
 354   PTR dynamic_info;
 355
 356   /* A mapping from local symbols to offsets into the global offset
 357      table, used when linking on SunOS.  This is indexed by the symbol
 358      index.  */
 359   bfd_vma *local_got_offsets;
 360 };
 361
 362 struct  aout_data_struct {
 363     struct aoutdata a;
 364     struct internal_exec e;
 365 };
 366
 367 #define adata(bfd)              ((bfd)->tdata.aout_data->a)
 368 #define exec_hdr(bfd)           (adata(bfd).hdr)
 369 #define obj_aout_symbols(bfd)   (adata(bfd).symbols)
 370 #define obj_textsec(bfd)        (adata(bfd).textsec)
 371 #define obj_datasec(bfd)        (adata(bfd).datasec)
 372 #define obj_bsssec(bfd)         (adata(bfd).bsssec)
 373 #define obj_sym_filepos(bfd)    (adata(bfd).sym_filepos)
 374 #define obj_str_filepos(bfd)    (adata(bfd).str_filepos)
 375 #define obj_reloc_entry_size(bfd) (adata(bfd).reloc_entry_size)
 376 #define obj_symbol_entry_size(bfd) (adata(bfd).symbol_entry_size)
 377 #define obj_aout_subformat(bfd) (adata(bfd).subformat)
 378 #define obj_aout_external_syms(bfd) (adata(bfd).external_syms)
 379 #define obj_aout_external_sym_count(bfd) (adata(bfd).external_sym_count)
 380 #define obj_aout_sym_window(bfd) (adata(bfd).sym_window)
 381 #define obj_aout_external_strings(bfd) (adata(bfd).external_strings)
 382 #define obj_aout_external_string_size(bfd) (adata(bfd).external_string_size)
 383 #define obj_aout_string_window(bfd) (adata(bfd).string_window)
 384 #define obj_aout_sym_hashes(bfd) (adata(bfd).sym_hashes)
 385 #define obj_aout_dynamic_info(bfd) (adata(bfd).dynamic_info)
 386
 387 /* We take the address of the first element of an asymbol to ensure that the
 388    macro is only ever applied to an asymbol */
 389 #define aout_symbol(asymbol) ((aout_symbol_type *)(&(asymbol)->the_bfd))
 390
 391 /* Information we keep for each a.out section.  This is currently only
 392    used by the a.out backend linker.  */
 393
 394 struct aout_section_data_struct
 395 {
 396   /* The unswapped relocation entries for this section.  */
 397   PTR relocs;
 398 };
 399
 400 #define aout_section_data(s) \
 401   ((struct aout_section_data_struct *) (s)->used_by_bfd)
 402
 403 #define set_aout_section_data(s,v) \
 404   ((s)->used_by_bfd = (PTR)&(v)->relocs)
 405
 406 /* Prototype declarations for functions defined in aoutx.h  */
 407
 408 boolean
 409 NAME(aout,squirt_out_relocs) PARAMS ((bfd *abfd, asection *section));
 410
 411 boolean
 412 NAME(aout,make_sections) PARAMS ((bfd *));
 413
 414 const bfd_target *
 415 NAME(aout,some_aout_object_p) PARAMS ((bfd *abfd,
 416                                        struct internal_exec *execp,
 417                                        const bfd_target *(*callback)(bfd *)));
 418
 419 boolean
 420 NAME(aout,mkobject) PARAMS ((bfd *abfd));
 421
 422 enum machine_type
 423 NAME(aout,machine_type) PARAMS ((enum bfd_architecture arch,
 424                                  unsigned long machine,
 425                                  boolean *unknown));
 426
 427 boolean
 428 NAME(aout,set_arch_mach) PARAMS ((bfd *abfd, enum bfd_architecture arch,
 429                                   unsigned long machine));
 430
 431 boolean
 432 NAME(aout,new_section_hook) PARAMS ((bfd *abfd, asection *newsect));
 433
 434 boolean
 435 NAME(aout,set_section_contents) PARAMS ((bfd *abfd, sec_ptr section,
 436                          PTR location, file_ptr offset, bfd_size_type count));
 437
 438 asymbol *
 439 NAME(aout,make_empty_symbol) PARAMS ((bfd *abfd));
 440
 441 boolean
 442 NAME(aout,translate_symbol_table) PARAMS ((bfd *, aout_symbol_type *,
 443                                            struct external_nlist *,
 444                                            bfd_size_type, char *,
 445                                            bfd_size_type,
 446                                            boolean dynamic));
 447
 448 boolean
 449 NAME(aout,slurp_symbol_table) PARAMS ((bfd *abfd));
 450
 451 boolean
 452 NAME(aout,write_syms) PARAMS ((bfd *abfd));
 453
 454 void
 455 NAME(aout,reclaim_symbol_table) PARAMS ((bfd *abfd));
 456
 457 long
 458 NAME(aout,get_symtab_upper_bound) PARAMS ((bfd *abfd));
 459
 460 long
 461 NAME(aout,get_symtab) PARAMS ((bfd *abfd, asymbol **location));
 462
 463 void
 464 NAME(aout,swap_ext_reloc_in) PARAMS ((bfd *, struct reloc_ext_external *,
 465                                       arelent *, asymbol **, bfd_size_type));
 466 void
 467 NAME(aout,swap_std_reloc_in) PARAMS ((bfd *, struct reloc_std_external *,
 468                                       arelent *, asymbol **, bfd_size_type));
 469
 470 reloc_howto_type *
 471 NAME(aout,reloc_type_lookup) PARAMS ((bfd *abfd,
 472                                       bfd_reloc_code_real_type code));
 473
 474 boolean
 475 NAME(aout,slurp_reloc_table) PARAMS ((bfd *abfd, sec_ptr asect,
 476                                       asymbol **symbols));
 477
 478 long
 479 NAME(aout,canonicalize_reloc) PARAMS ((bfd *abfd, sec_ptr section,
 480                                        arelent **relptr, asymbol **symbols));
 481
 482 long
 483 NAME(aout,get_reloc_upper_bound) PARAMS ((bfd *abfd, sec_ptr asect));
 484
 485 void
 486 NAME(aout,reclaim_reloc) PARAMS ((bfd *ignore_abfd, sec_ptr ignore));
 487
 488 alent *
 489 NAME(aout,get_lineno) PARAMS ((bfd *ignore_abfd, asymbol *ignore_symbol));
 490
 491 void
 492 NAME(aout,print_symbol) PARAMS ((bfd *ignore_abfd, PTR file,
 493                             asymbol *symbol, bfd_print_symbol_type how));
 494
 495 void
 496 NAME(aout,get_symbol_info) PARAMS ((bfd *ignore_abfd,
 497                            asymbol *symbol, symbol_info *ret));
 498
 499 boolean
 500 NAME(aout,find_nearest_line) PARAMS ((bfd *abfd, asection *section,
 501       asymbol **symbols, bfd_vma offset, CONST char **filename_ptr,
 502       CONST char **functionname_ptr, unsigned int *line_ptr));
 503
 504 long
 505 NAME(aout,read_minisymbols) PARAMS ((bfd *, boolean, PTR *, unsigned int *));
 506
 507 asymbol *
 508 NAME(aout,minisymbol_to_symbol) PARAMS ((bfd *, boolean, const PTR,
 509                                          asymbol *));
 510
 511 int
 512 NAME(aout,sizeof_headers) PARAMS ((bfd *abfd, boolean exec));
 513
 514 boolean
 515 NAME(aout,adjust_sizes_and_vmas) PARAMS ((bfd *abfd,
 516        bfd_size_type *text_size, file_ptr *text_end));
 517
 518 void
 519 NAME(aout,swap_exec_header_in) PARAMS ((bfd *abfd,
 520        struct external_exec *raw_bytes, struct internal_exec *execp));
 521
 522 void
 523 NAME(aout,swap_exec_header_out) PARAMS ((bfd *abfd,
 524        struct internal_exec *execp, struct external_exec *raw_bytes));
 525
 526 struct bfd_hash_entry *
 527 NAME(aout,link_hash_newfunc)
 528   PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
 529
 530 boolean
 531 NAME(aout,link_hash_table_init)
 532      PARAMS ((struct aout_link_hash_table *, bfd *,
 533               struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 534                                           struct bfd_hash_table *,
 535                                           const char *)));
 536
 537 struct bfd_link_hash_table *
 538 NAME(aout,link_hash_table_create) PARAMS ((bfd *));
 539
 540 boolean
 541 NAME(aout,link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
 542
 543 boolean
 544 NAME(aout,final_link) PARAMS ((bfd *, struct bfd_link_info *,
 545                                void (*) (bfd *, file_ptr *, file_ptr *,
 546                                          file_ptr *)));
 547
 548 boolean
 549 NAME(aout,bfd_free_cached_info) PARAMS ((bfd *));
 550
 551 /* A.out uses the generic versions of these routines... */
 552
 553 #define aout_32_get_section_contents    _bfd_generic_get_section_contents
 554
 555 #define aout_64_get_section_contents    _bfd_generic_get_section_contents
 556 #ifndef NO_WRITE_HEADER_KLUDGE
 557 #define NO_WRITE_HEADER_KLUDGE 0
 558 #endif
 559
 560 #ifndef aout_32_bfd_is_local_label
 561 #define aout_32_bfd_is_local_label bfd_generic_is_local_label
 562 #endif
 563
 564 #ifndef WRITE_HEADERS
 565 #define WRITE_HEADERS(abfd, execp)                                            \
 566       {                                                                       \
 567         bfd_size_type text_size; /* dummy vars */                             \
 568         file_ptr text_end;                                                    \
 569         if (adata(abfd).magic == undecided_magic)                             \
 570           NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);     \
 571                                                                               \
 572         execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE;        \
 573         execp->a_entry = bfd_get_start_address (abfd);                        \
 574                                                                               \
 575         execp->a_trsize = ((obj_textsec (abfd)->reloc_count) *                \
 576                            obj_reloc_entry_size (abfd));                      \
 577         execp->a_drsize = ((obj_datasec (abfd)->reloc_count) *                \
 578                            obj_reloc_entry_size (abfd));                      \
 579         NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes);           \
 580                                                                               \
 581         if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) return false;       \
 582         if (bfd_write ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)           \
 583             != EXEC_BYTES_SIZE)                                               \
 584           return false;                                                       \
 585         /* Now write out reloc info, followed by syms and strings */          \
 586                                                                               \
 587         if (bfd_get_outsymbols (abfd) != (asymbol **) NULL                    \
 588             && bfd_get_symcount (abfd) != 0)                                  \
 589             {                                                                 \
 590               if (bfd_seek (abfd, (file_ptr)(N_SYMOFF(*execp)), SEEK_SET)     \
 591                   != 0)                                                       \
 592                 return false;                                                 \
 593                                                                               \
 594               if (! NAME(aout,write_syms)(abfd)) return false;                \
 595                                                                               \
 596               if (bfd_seek (abfd, (file_ptr)(N_TRELOFF(*execp)), SEEK_SET)    \
 597                   != 0)                                                       \
 598                 return false;                                                 \
 599                                                                               \
 600               if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd)))   \
 601                 return false;                                                 \
 602               if (bfd_seek (abfd, (file_ptr)(N_DRELOFF(*execp)), SEEK_SET)    \
 603                   != 0)                                                       \
 604                 return false;                                                 \
 605                                                                               \
 606               if (!NAME(aout,squirt_out_relocs)(abfd, obj_datasec (abfd)))    \
 607                 return false;                                                 \
 608             }                                                                 \
 609       }
 610 #endif
 611
 612 #endif /* ! defined (LIBAOUT_H) */