xref: /openbsd/gnu/usr.bin/binutils/bfd/libaout.h (revision 133306f0)
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 
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 
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) */
625