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 GET_MAGIC bfd_h_get_32
  37 #define PUT_WORD bfd_h_put_64
  38 #define PUT_MAGIC bfd_h_put_32
  39 #ifndef NAME
  40 #define NAME(x,y) CAT3(x,_64_,y)
  41 #endif
  42 #define JNAME(x) CAT(x,_64)
  43 #define BYTES_IN_WORD 8
  44 #else
  45 #if ARCH_SIZE==16
  46 #define GET_WORD bfd_h_get_16
  47 #define GET_SWORD bfd_h_get_signed_16
  48 #define GET_MAGIC bfd_h_get_16
  49 #define PUT_WORD bfd_h_put_16
  50 #define PUT_MAGIC bfd_h_put_16
  51 #ifndef NAME
  52 #define NAME(x,y) CAT3(x,_16_,y)
  53 #endif
  54 #define JNAME(x) CAT(x,_16)
  55 #define BYTES_IN_WORD 2
  56 #else /* ARCH_SIZE == 32 */
  57 #define GET_WORD bfd_h_get_32
  58 #define GET_SWORD bfd_h_get_signed_32
  59 #define GET_MAGIC bfd_h_get_32
  60 #define PUT_WORD bfd_h_put_32
  61 #define PUT_MAGIC bfd_h_put_32
  62 #ifndef NAME
  63 #define NAME(x,y) CAT3(x,_32_,y)
  64 #endif
  65 #define JNAME(x) CAT(x,_32)
  66 #define BYTES_IN_WORD 4
  67 #endif /* ARCH_SIZE==32 */
  68 #endif /* ARCH_SIZE==64 */
  69
  70 /* Declare at file level, since used in parameter lists, which have
  71    weird scope.  */
  72 struct external_exec;
  73 struct external_nlist;
  74 struct reloc_ext_external;
  75 struct reloc_std_external;
  76 \f
  77 /* a.out backend linker hash table entries.  */
  78
  79 struct aout_link_hash_entry
  80 {
  81   struct bfd_link_hash_entry root;
  82   /* Whether this symbol has been written out.  */
  83   boolean written;
  84   /* Symbol index in output file.  */
  85   int indx;
  86 };
  87
  88 /* a.out backend linker hash table.  */
  89
  90 struct aout_link_hash_table
  91 {
  92   struct bfd_link_hash_table root;
  93 };
  94
  95 /* Look up an entry in an a.out link hash table.  */
  96
  97 #define aout_link_hash_lookup(table, string, create, copy, follow) \
  98   ((struct aout_link_hash_entry *) \
  99    bfd_link_hash_lookup (&(table)->root, (string), (create), (copy), (follow)))
 100
 101 /* Traverse an a.out link hash table.  */
 102
 103 #define aout_link_hash_traverse(table, func, info)                      \
 104   (bfd_link_hash_traverse                                               \
 105    (&(table)->root,                                                     \
 106     (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func),  \
 107     (info)))
 108
 109 /* Get the a.out link hash table from the info structure.  This is
 110    just a cast.  */
 111
 112 #define aout_hash_table(p) ((struct aout_link_hash_table *) ((p)->hash))
 113 \f
 114 /* Back-end information for various a.out targets.  */
 115 struct aout_backend_data
 116 {
 117   /* Are ZMAGIC files mapped contiguously?  If so, the text section may
 118      need more padding, if the segment size (granularity for memory access
 119      control) is larger than the page size.  */
 120   unsigned char zmagic_mapped_contiguous;
 121   /* If this flag is set, ZMAGIC/NMAGIC file headers get mapped in with the
 122      text section, which starts immediately after the file header.
 123      If not, the text section starts on the next page.  */
 124   unsigned char text_includes_header;
 125
 126   /* If this flag is set, then if the entry address is not in the
 127      first SEGMENT_SIZE bytes of the text section, it is taken to be
 128      the address of the start of the text section.  This can be useful
 129      for kernels.  */
 130   unsigned char entry_is_text_address;
 131
 132   /* The value to pass to N_SET_FLAGS.  */
 133   unsigned char exec_hdr_flags;
 134
 135   /* If the text section VMA isn't specified, and we need an absolute
 136      address, use this as the default.  If we're producing a relocatable
 137      file, zero is always used.  */
 138   /* ?? Perhaps a callback would be a better choice?  Will this do anything
 139      reasonable for a format that handles multiple CPUs with different
 140      load addresses for each?  */
 141   bfd_vma default_text_vma;
 142
 143   /* Callback for setting the page and segment sizes, if they can't be
 144      trivially determined from the architecture.  */
 145   boolean (*set_sizes) PARAMS ((bfd *));
 146
 147   /* zmagic files only. For go32, the length of the exec header contributes
 148      to the size of the text section in the file for alignment purposes but
 149      does *not* get counted in the length of the text section. */
 150   unsigned char exec_header_not_counted;
 151
 152   /* Callback from the add symbols phase of the linker code to handle
 153      a dynamic object.  */
 154   boolean (*add_dynamic_symbols) PARAMS ((bfd *, struct bfd_link_info *,
 155                                           struct external_nlist **,
 156                                           bfd_size_type *, char **));
 157
 158   /* Callback from the add symbols phase of the linker code to handle
 159      adding a single symbol to the global linker hash table.  */
 160   boolean (*add_one_symbol) PARAMS ((struct bfd_link_info *, bfd *,
 161                                      const char *, flagword, asection *,
 162                                      bfd_vma, const char *, boolean,
 163                                      boolean,
 164                                      struct bfd_link_hash_entry **));
 165
 166   /* Called to handle linking a dynamic object.  */
 167   boolean (*link_dynamic_object) PARAMS ((struct bfd_link_info *, bfd *));
 168
 169   /* Called for each global symbol being written out by the linker.
 170      This should write out the dynamic symbol information.  */
 171   boolean (*write_dynamic_symbol) PARAMS ((bfd *, struct bfd_link_info *,
 172                                            struct aout_link_hash_entry *));
 173
 174   /* If this callback is not NULL, the linker calls it for each reloc.
 175      RELOC is a pointer to the unswapped reloc.  If *SKIP is set to
 176      true, the reloc will be skipped.  *RELOCATION may be changed to
 177      change the effects of the relocation.  */
 178   boolean (*check_dynamic_reloc) PARAMS ((struct bfd_link_info *info,
 179                                           bfd *input_bfd,
 180                                           asection *input_section,
 181                                           struct aout_link_hash_entry *h,
 182                                           PTR reloc, bfd_byte *contents,
 183                                           boolean *skip,
 184                                           bfd_vma *relocation));
 185
 186   /* Called at the end of a link to finish up any dynamic linking
 187      information.  */
 188   boolean (*finish_dynamic_link) PARAMS ((bfd *, struct bfd_link_info *));
 189 };
 190 #define aout_backend_info(abfd) \
 191         ((CONST struct aout_backend_data *)((abfd)->xvec->backend_data))
 192
 193 /* This is the layout in memory of a "struct exec" while we process it.
 194    All 'lengths' are given as a number of bytes.
 195    All 'alignments' are for relinkable files only;  an alignment of
 196         'n' indicates the corresponding segment must begin at an
 197         address that is a multiple of (2**n).  */
 198
 199 struct internal_exec
 200 {
 201     long a_info;                /* Magic number and flags, packed */
 202     bfd_vma a_text;             /* length of text, in bytes  */
 203     bfd_vma a_data;             /* length of data, in bytes  */
 204     bfd_vma a_bss;              /* length of uninitialized data area in mem */
 205     bfd_vma a_syms;             /* length of symbol table data in file */
 206     bfd_vma a_entry;            /* start address */
 207     bfd_vma a_trsize;           /* length of text's relocation info, in bytes */
 208     bfd_vma a_drsize;           /* length of data's relocation info, in bytes */
 209     /* Added for i960 */
 210     bfd_vma a_tload;            /* Text runtime load address */
 211     bfd_vma a_dload;            /* Data runtime load address */
 212     unsigned char a_talign;     /* Alignment of text segment */
 213     unsigned char a_dalign;     /* Alignment of data segment */
 214     unsigned char a_balign;     /* Alignment of bss segment */
 215     char a_relaxable;           /* Enough info for linker relax */
 216 };
 217
 218 /* Magic number is written
 219 < MSB          >
 220 3130292827262524232221201918171615141312111009080706050403020100
 221 < FLAGS        >< MACHINE TYPE ><  MAGIC NUMBER                >
 222 */
 223 /* Magic number for NetBSD is
 224 <MSB           >
 225 3130292827262524232221201918171615141312111009080706050403020100
 226 < FLAGS    >< MACHINE TYPE     ><  MAGIC NUMBER                >
 227 */
 228
 229 enum machine_type {
 230   M_UNKNOWN = 0,
 231   M_68010 = 1,
 232   M_68020 = 2,
 233   M_SPARC = 3,
 234   /* skip a bunch so we don't run into any of suns numbers */
 235   /* make these up for the ns32k*/
 236   M_NS32032 = (64),             /* ns32032 running ? */
 237   M_NS32532 = (64 + 5),         /* ns32532 running mach */
 238
 239   M_386 = 100,
 240   M_29K = 101,          /* AMD 29000 */
 241   M_386_DYNIX = 102,    /* Sequent running dynix */
 242   M_ARM = 103,          /* Advanced Risc Machines ARM */
 243   M_SPARCLET = 131,     /* SPARClet = M_SPARC + 128 */
 244   M_386_NETBSD = 134,   /* NetBSD/i386 binary */
 245   M_68K_NETBSD = 135,   /* NetBSD/m68k binary */
 246   M_68K4K_NETBSD = 136, /* NetBSD/m68k4k binary */
 247   M_532_NETBSD = 137,   /* NetBSD/ns32k binary */
 248   M_SPARC_NETBSD = 138, /* NetBSD/sparc binary */
 249   M_PMAX_NETBSD = 139,  /* NetBSD/pmax (MIPS little-endian) binary */
 250   M_VAX_NETBSD = 140,   /* NetBSD/vax binary */
 251   M_ALPHA_NETBSD = 141, /* NetBSD/alpha binary */
 252   M_ARM6_NETBSD = 143,  /* NetBSD/arm32 binary */
 253   M_SPARCLET_1 = 147,   /* 0x93, reserved */
 254   M_MIPS1 = 151,        /* MIPS R2000/R3000 binary */
 255   M_MIPS2 = 152,        /* MIPS R4000/R6000 binary */
 256   M_SPARCLET_2 = 163,   /* 0xa3, reserved */
 257   M_SPARCLET_3 = 179,   /* 0xb3, reserved */
 258   M_SPARCLET_4 = 195,   /* 0xc3, reserved */
 259   M_HP200 = 200,        /* HP 200 (68010) BSD binary */
 260   M_HP300 = (300 % 256), /* HP 300 (68020+68881) BSD binary */
 261   M_HPUX = (0x20c % 256), /* HP 200/300 HPUX binary */
 262   M_SPARCLET_5 = 211,   /* 0xd3, reserved */
 263   M_SPARCLET_6 = 227,   /* 0xe3, reserved */
 264   /*  M_SPARCLET_7 = 243        / * 0xf3, reserved */
 265   M_SPARCLITE_LE = 243,
 266   M_CRIS = 255          /* Axis CRIS binary.  */
 267 };
 268
 269 #define N_DYNAMIC(exec) ((exec).a_info & 0x80000000)
 270
 271 #ifndef N_MAGIC
 272 # define N_MAGIC(exec) ((exec).a_info & 0xffff)
 273 #endif
 274
 275 #ifndef N_MACHTYPE
 276 # define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff))
 277 #endif
 278
 279 #ifndef N_FLAGS
 280 # define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff)
 281 #endif
 282
 283 #ifndef N_SET_INFO
 284 # define N_SET_INFO(exec, magic, type, flags) \
 285 ((exec).a_info = ((magic) & 0xffff) \
 286  | (((int)(type) & 0xff) << 16) \
 287  | (((flags) & 0xff) << 24))
 288 #endif
 289
 290 #ifndef N_SET_DYNAMIC
 291 # define N_SET_DYNAMIC(exec, dynamic) \
 292 ((exec).a_info = (dynamic) ? ((exec).a_info | 0x80000000) : \
 293 ((exec).a_info & 0x7fffffff))
 294 #endif
 295
 296 #ifndef N_SET_MAGIC
 297 # define N_SET_MAGIC(exec, magic) \
 298 ((exec).a_info = (((exec).a_info & 0xffff0000) | ((magic) & 0xffff)))
 299 #endif
 300
 301 #ifndef N_SET_MACHTYPE
 302 # define N_SET_MACHTYPE(exec, machtype) \
 303 ((exec).a_info = \
 304  ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16))
 305 #endif
 306
 307 #ifndef N_SET_FLAGS
 308 # define N_SET_FLAGS(exec, flags) \
 309 ((exec).a_info = \
 310  ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24))
 311 #endif
 312
 313 typedef struct aout_symbol {
 314   asymbol symbol;
 315   short desc;
 316   char other;
 317   unsigned char type;
 318 } aout_symbol_type;
 319
 320 /* The `tdata' struct for all a.out-like object file formats.
 321    Various things depend on this struct being around any time an a.out
 322    file is being handled.  An example is dbxread.c in GDB.  */
 323
 324 struct aoutdata {
 325   struct internal_exec *hdr;            /* exec file header */
 326   aout_symbol_type *symbols;            /* symtab for input bfd */
 327
 328   /* For ease, we do this */
 329   asection *textsec;
 330   asection *datasec;
 331   asection *bsssec;
 332
 333   /* We remember these offsets so that after check_file_format, we have
 334      no dependencies on the particular format of the exec_hdr.  */
 335   file_ptr sym_filepos;
 336   file_ptr str_filepos;
 337
 338   /* Size of a relocation entry in external form */
 339   unsigned reloc_entry_size;
 340
 341   /* Size of a symbol table entry in external form */
 342   unsigned symbol_entry_size;
 343
 344   /* Page size - needed for alignment of demand paged files. */
 345   unsigned long page_size;
 346
 347   /* Segment size - needed for alignment of demand paged files. */
 348   unsigned long segment_size;
 349
 350   /* Zmagic disk block size - need to align the start of the text
 351      section in ZMAGIC binaries.  Normally the same as page_size.  */
 352   unsigned long zmagic_disk_block_size;
 353
 354   unsigned exec_bytes_size;
 355   unsigned vma_adjusted : 1;
 356
 357   /* used when a bfd supports several highly similar formats */
 358   enum
 359     {
 360       default_format = 0,
 361       /* Used on HP 9000/300 running HP/UX.  See hp300hpux.c.  */
 362       gnu_encap_format,
 363       /* Used on Linux, 386BSD, etc.  See include/aout/aout64.h.  */
 364       q_magic_format
 365     } subformat;
 366
 367   enum
 368     {
 369       undecided_magic = 0,
 370       z_magic,
 371       o_magic,
 372       n_magic
 373     } magic;
 374
 375   /* A buffer for find_nearest_line.  */
 376   char *line_buf;
 377
 378   /* The external symbol information.  */
 379   struct external_nlist *external_syms;
 380   bfd_size_type external_sym_count;
 381   bfd_window sym_window;
 382   char *external_strings;
 383   bfd_size_type external_string_size;
 384   bfd_window string_window;
 385   struct aout_link_hash_entry **sym_hashes;
 386
 387   /* A pointer for shared library information.  */
 388   PTR dynamic_info;
 389
 390   /* A mapping from local symbols to offsets into the global offset
 391      table, used when linking on SunOS.  This is indexed by the symbol
 392      index.  */
 393   bfd_vma *local_got_offsets;
 394 };
 395
 396 struct  aout_data_struct {
 397     struct aoutdata a;
 398     struct internal_exec e;
 399 };
 400
 401 #define adata(bfd)              ((bfd)->tdata.aout_data->a)
 402 #define exec_hdr(bfd)           (adata(bfd).hdr)
 403 #define obj_aout_symbols(bfd)   (adata(bfd).symbols)
 404 #define obj_textsec(bfd)        (adata(bfd).textsec)
 405 #define obj_datasec(bfd)        (adata(bfd).datasec)
 406 #define obj_bsssec(bfd)         (adata(bfd).bsssec)
 407 #define obj_sym_filepos(bfd)    (adata(bfd).sym_filepos)
 408 #define obj_str_filepos(bfd)    (adata(bfd).str_filepos)
 409 #define obj_reloc_entry_size(bfd) (adata(bfd).reloc_entry_size)
 410 #define obj_symbol_entry_size(bfd) (adata(bfd).symbol_entry_size)
 411 #define obj_aout_subformat(bfd) (adata(bfd).subformat)
 412 #define obj_aout_external_syms(bfd) (adata(bfd).external_syms)
 413 #define obj_aout_external_sym_count(bfd) (adata(bfd).external_sym_count)
 414 #define obj_aout_sym_window(bfd) (adata(bfd).sym_window)
 415 #define obj_aout_external_strings(bfd) (adata(bfd).external_strings)
 416 #define obj_aout_external_string_size(bfd) (adata(bfd).external_string_size)
 417 #define obj_aout_string_window(bfd) (adata(bfd).string_window)
 418 #define obj_aout_sym_hashes(bfd) (adata(bfd).sym_hashes)
 419 #define obj_aout_dynamic_info(bfd) (adata(bfd).dynamic_info)
 420
 421 /* We take the address of the first element of an asymbol to ensure that the
 422    macro is only ever applied to an asymbol */
 423 #define aout_symbol(asymbol) ((aout_symbol_type *)(&(asymbol)->the_bfd))
 424
 425 /* Information we keep for each a.out section.  This is currently only
 426    used by the a.out backend linker.  */
 427
 428 struct aout_section_data_struct
 429 {
 430   /* The unswapped relocation entries for this section.  */
 431   PTR relocs;
 432 };
 433
 434 #define aout_section_data(s) \
 435   ((struct aout_section_data_struct *) (s)->used_by_bfd)
 436
 437 #define set_aout_section_data(s,v) \
 438   ((s)->used_by_bfd = (PTR)&(v)->relocs)
 439
 440 /* Prototype declarations for functions defined in aoutx.h  */
 441
 442 boolean
 443 NAME(aout,squirt_out_relocs) PARAMS ((bfd *abfd, asection *section));
 444
 445 boolean
 446 NAME(aout,make_sections) PARAMS ((bfd *));
 447
 448 const bfd_target *
 449 NAME(aout,some_aout_object_p) PARAMS ((bfd *abfd,
 450                                        struct internal_exec *execp,
 451                                        const bfd_target *(*callback)(bfd *)));
 452
 453 boolean
 454 NAME(aout,mkobject) PARAMS ((bfd *abfd));
 455
 456 enum machine_type
 457 NAME(aout,machine_type) PARAMS ((enum bfd_architecture arch,
 458                                  unsigned long machine,
 459                                  boolean *unknown));
 460
 461 boolean
 462 NAME(aout,set_arch_mach) PARAMS ((bfd *abfd, enum bfd_architecture arch,
 463                                   unsigned long machine));
 464
 465 boolean
 466 NAME(aout,new_section_hook) PARAMS ((bfd *abfd, asection *newsect));
 467
 468 boolean
 469 NAME(aout,set_section_contents) PARAMS ((bfd *abfd, sec_ptr section,
 470                          PTR location, file_ptr offset, bfd_size_type count));
 471
 472 asymbol *
 473 NAME(aout,make_empty_symbol) PARAMS ((bfd *abfd));
 474
 475 boolean
 476 NAME(aout,translate_symbol_table) PARAMS ((bfd *, aout_symbol_type *,
 477                                            struct external_nlist *,
 478                                            bfd_size_type, char *,
 479                                            bfd_size_type,
 480                                            boolean dynamic));
 481
 482 boolean
 483 NAME(aout,slurp_symbol_table) PARAMS ((bfd *abfd));
 484
 485 boolean
 486 NAME(aout,write_syms) PARAMS ((bfd *abfd));
 487
 488 void
 489 NAME(aout,reclaim_symbol_table) PARAMS ((bfd *abfd));
 490
 491 long
 492 NAME(aout,get_symtab_upper_bound) PARAMS ((bfd *abfd));
 493
 494 long
 495 NAME(aout,get_symtab) PARAMS ((bfd *abfd, asymbol **location));
 496
 497 void
 498 NAME(aout,swap_ext_reloc_in) PARAMS ((bfd *, struct reloc_ext_external *,
 499                                       arelent *, asymbol **, bfd_size_type));
 500 void
 501 NAME(aout,swap_std_reloc_in) PARAMS ((bfd *, struct reloc_std_external *,
 502                                       arelent *, asymbol **, bfd_size_type));
 503
 504 reloc_howto_type *
 505 NAME(aout,reloc_type_lookup) PARAMS ((bfd *abfd,
 506                                       bfd_reloc_code_real_type code));
 507
 508 boolean
 509 NAME(aout,slurp_reloc_table) PARAMS ((bfd *abfd, sec_ptr asect,
 510                                       asymbol **symbols));
 511
 512 long
 513 NAME(aout,canonicalize_reloc) PARAMS ((bfd *abfd, sec_ptr section,
 514                                        arelent **relptr, asymbol **symbols));
 515
 516 long
 517 NAME(aout,get_reloc_upper_bound) PARAMS ((bfd *abfd, sec_ptr asect));
 518
 519 void
 520 NAME(aout,reclaim_reloc) PARAMS ((bfd *ignore_abfd, sec_ptr ignore));
 521
 522 alent *
 523 NAME(aout,get_lineno) PARAMS ((bfd *ignore_abfd, asymbol *ignore_symbol));
 524
 525 void
 526 NAME(aout,print_symbol) PARAMS ((bfd *ignore_abfd, PTR file,
 527                             asymbol *symbol, bfd_print_symbol_type how));
 528
 529 void
 530 NAME(aout,get_symbol_info) PARAMS ((bfd *ignore_abfd,
 531                            asymbol *symbol, symbol_info *ret));
 532
 533 boolean
 534 NAME(aout,find_nearest_line) PARAMS ((bfd *abfd, asection *section,
 535       asymbol **symbols, bfd_vma offset, CONST char **filename_ptr,
 536       CONST char **functionname_ptr, unsigned int *line_ptr));
 537
 538 long
 539 NAME(aout,read_minisymbols) PARAMS ((bfd *, boolean, PTR *, unsigned int *));
 540
 541 asymbol *
 542 NAME(aout,minisymbol_to_symbol) PARAMS ((bfd *, boolean, const PTR,
 543                                          asymbol *));
 544
 545 int
 546 NAME(aout,sizeof_headers) PARAMS ((bfd *abfd, boolean exec));
 547
 548 boolean
 549 NAME(aout,adjust_sizes_and_vmas) PARAMS ((bfd *abfd,
 550        bfd_size_type *text_size, file_ptr *text_end));
 551
 552 void
 553 NAME(aout,swap_exec_header_in) PARAMS ((bfd *abfd,
 554        struct external_exec *raw_bytes, struct internal_exec *execp));
 555
 556 void
 557 NAME(aout,swap_exec_header_out) PARAMS ((bfd *abfd,
 558        struct internal_exec *execp, struct external_exec *raw_bytes));
 559
 560 struct bfd_hash_entry *
 561 NAME(aout,link_hash_newfunc)
 562   PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
 563
 564 boolean
 565 NAME(aout,link_hash_table_init)
 566      PARAMS ((struct aout_link_hash_table *, bfd *,
 567               struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 568                                           struct bfd_hash_table *,
 569                                           const char *)));
 570
 571 struct bfd_link_hash_table *
 572 NAME(aout,link_hash_table_create) PARAMS ((bfd *));
 573
 574 boolean
 575 NAME(aout,link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
 576
 577 boolean
 578 NAME(aout,final_link) PARAMS ((bfd *, struct bfd_link_info *,
 579                                void (*) (bfd *, file_ptr *, file_ptr *,
 580                                          file_ptr *)));
 581
 582 boolean
 583 NAME(aout,bfd_free_cached_info) PARAMS ((bfd *));
 584
 585 /* A.out uses the generic versions of these routines... */
 586
 587 #define aout_16_get_section_contents    _bfd_generic_get_section_contents
 588
 589 #define aout_32_get_section_contents    _bfd_generic_get_section_contents
 590
 591 #define aout_64_get_section_contents    _bfd_generic_get_section_contents
 592 #ifndef NO_WRITE_HEADER_KLUDGE
 593 #define NO_WRITE_HEADER_KLUDGE 0
 594 #endif
 595
 596 #ifndef aout_32_bfd_is_local_label_name
 597 #define aout_32_bfd_is_local_label_name bfd_generic_is_local_label_name
 598 #endif
 599
 600 #ifndef WRITE_HEADERS
 601 #define WRITE_HEADERS(abfd, execp)                                            \
 602       {                                                                       \
 603         bfd_size_type text_size; /* dummy vars */                             \
 604         file_ptr text_end;                                                    \
 605         if (adata(abfd).magic == undecided_magic)                             \
 606           NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);     \
 607                                                                               \
 608         execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE;        \
 609         execp->a_entry = bfd_get_start_address (abfd);                        \
 610                                                                               \
 611         execp->a_trsize = ((obj_textsec (abfd)->reloc_count) *                \
 612                            obj_reloc_entry_size (abfd));                      \
 613         execp->a_drsize = ((obj_datasec (abfd)->reloc_count) *                \
 614                            obj_reloc_entry_size (abfd));                      \
 615         NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes);           \
 616                                                                               \
 617         if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) return false;       \
 618         if (bfd_write ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)           \
 619             != EXEC_BYTES_SIZE)                                               \
 620           return false;                                                       \
 621         /* Now write out reloc info, followed by syms and strings */          \
 622                                                                               \
 623         if (bfd_get_outsymbols (abfd) != (asymbol **) NULL                    \
 624             && bfd_get_symcount (abfd) != 0)                                  \
 625           {                                                                   \
 626             if (bfd_seek (abfd, (file_ptr)(N_SYMOFF(*execp)), SEEK_SET) != 0) \
 627               return false;                                                   \
 628                                                                               \
 629             if (! NAME(aout,write_syms)(abfd)) return false;                  \
 630           }                                                                   \
 631                                                                               \
 632         if (bfd_seek (abfd, (file_ptr)(N_TRELOFF(*execp)), SEEK_SET) != 0)    \
 633           return false;                                                       \
 634         if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd)))         \
 635           return false;                                                       \
 636                                                                               \
 637         if (bfd_seek (abfd, (file_ptr)(N_DRELOFF(*execp)), SEEK_SET) != 0)    \
 638           return false;                                                       \
 639         if (!NAME(aout,squirt_out_relocs)(abfd, obj_datasec (abfd)))          \
 640           return false;                                                       \
 641       }
 642 #endif
 643
 644 #endif /* ! defined (LIBAOUT_H) */