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Rewrite bfd error handler
[deliverable/binutils-gdb.git] / bfd / aoutx.h
CommitLineData
252b5132 1/* BFD semi-generic back-end for a.out binaries.
2571583a 2 Copyright (C) 1990-2017 Free Software Foundation, Inc.
252b5132
RH		 3 Written by Cygnus Support.
4
f7c33884 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
f7c33884
NC		 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
cd123cb7 9 the Free Software Foundation; either version 3 of the License, or
f7c33884 10 (at your option) any later version.
252b5132 11
f7c33884
NC		 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.
252b5132 16
f7c33884
NC		 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
cd123cb7
NC		 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
252b5132
RH		 21
22/*
23SECTION
24 a.out backends
25
252b5132
RH		 26DESCRIPTION
27
28 BFD supports a number of different flavours of a.out format,
29 though the major differences are only the sizes of the
30 structures on disk, and the shape of the relocation
31 information.
32
33 The support is split into a basic support file @file{aoutx.h}
34 and other files which derive functions from the base. One
35 derivation file is @file{aoutf1.h} (for a.out flavour 1), and
36 adds to the basic a.out functions support for sun3, sun4, 386
37 and 29k a.out files, to create a target jump vector for a
38 specific target.
39
40 This information is further split out into more specific files
41 for each machine, including @file{sunos.c} for sun3 and sun4,
42 @file{newsos3.c} for the Sony NEWS, and @file{demo64.c} for a
43 demonstration of a 64 bit a.out format.
44
45 The base file @file{aoutx.h} defines general mechanisms for
46 reading and writing records to and from disk and various
47 other methods which BFD requires. It is included by
48 @file{aout32.c} and @file{aout64.c} to form the names
49 <<aout_32_swap_exec_header_in>>, <<aout_64_swap_exec_header_in>>, etc.
50
51 As an example, this is what goes on to make the back end for a
52 sun4, from @file{aout32.c}:
53
54| #define ARCH_SIZE 32
55| #include "aoutx.h"
56
57 Which exports names:
58
59| ...
60| aout_32_canonicalize_reloc
61| aout_32_find_nearest_line
62| aout_32_get_lineno
63| aout_32_get_reloc_upper_bound
64| ...
65
66 from @file{sunos.c}:
67
68| #define TARGET_NAME "a.out-sunos-big"
6d00b590 69| #define VECNAME sparc_aout_sunos_be_vec
252b5132
RH		 70| #include "aoutf1.h"
71
72 requires all the names from @file{aout32.c}, and produces the jump vector
73
6d00b590 74| sparc_aout_sunos_be_vec
252b5132
RH		 75
76 The file @file{host-aout.c} is a special case. It is for a large set
77 of hosts that use ``more or less standard'' a.out files, and
78 for which cross-debugging is not interesting. It uses the
79 standard 32-bit a.out support routines, but determines the
80 file offsets and addresses of the text, data, and BSS
81 sections, the machine architecture and machine type, and the
82 entry point address, in a host-dependent manner. Once these
83 values have been determined, generic code is used to handle
84 the object file.
85
86 When porting it to run on a new system, you must supply:
87
88| HOST_PAGE_SIZE
89| HOST_SEGMENT_SIZE
90| HOST_MACHINE_ARCH (optional)
91| HOST_MACHINE_MACHINE (optional)
92| HOST_TEXT_START_ADDR
93| HOST_STACK_END_ADDR
94
95 in the file @file{../include/sys/h-@var{XXX}.h} (for your host). These
96 values, plus the structures and macros defined in @file{a.out.h} on
97 your host system, will produce a BFD target that will access
98 ordinary a.out files on your host. To configure a new machine
99 to use @file{host-aout.c}, specify:
100
101| TDEFAULTS = -DDEFAULT_VECTOR=host_aout_big_vec
102| TDEPFILES= host-aout.o trad-core.o
103
1110793a 104 in the @file{config/@var{XXX}.mt} file, and modify @file{configure.ac}
252b5132
RH		 105 to use the
106 @file{@var{XXX}.mt} file (by setting "<<bfd_target=XXX>>") when your
5ed6aba4 107 configuration is selected. */
252b5132
RH		 108
109/* Some assumptions:
110 * Any BFD with D_PAGED set is ZMAGIC, and vice versa.
111 Doesn't matter what the setting of WP_TEXT is on output, but it'll
112 get set on input.
113 * Any BFD with D_PAGED clear and WP_TEXT set is NMAGIC.
114 * Any BFD with both flags clear is OMAGIC.
115 (Just want to make these explicit, so the conditions tested in this
116 file make sense if you're more familiar with a.out than with BFD.) */
117
118#define KEEPIT udata.i
119
252b5132 120#include "sysdep.h"
3db64b00 121#include "bfd.h"
3882b010 122#include "safe-ctype.h"
252b5132
RH		 123#include "bfdlink.h"
124
125#include "libaout.h"
126#include "libbfd.h"
127#include "aout/aout64.h"
128#include "aout/stab_gnu.h"
129#include "aout/ar.h"
130
252b5132
RH		 131/*
132SUBSECTION
133 Relocations
134
135DESCRIPTION
136 The file @file{aoutx.h} provides for both the @emph{standard}
137 and @emph{extended} forms of a.out relocation records.
138
139 The standard records contain only an
140 address, a symbol index, and a type field. The extended records
141 (used on 29ks and sparcs) also have a full integer for an
5ed6aba4 142 addend. */
252b5132 143
252b5132
RH		 144#ifndef CTOR_TABLE_RELOC_HOWTO
145#define CTOR_TABLE_RELOC_IDX 2
923f08ff
AM		 146#define CTOR_TABLE_RELOC_HOWTO(BFD) \
147 ((obj_reloc_entry_size (BFD) == RELOC_EXT_SIZE \
148 ? howto_table_ext : howto_table_std) \
149 + CTOR_TABLE_RELOC_IDX)
252b5132
RH		 150#endif
151
152#ifndef MY_swap_std_reloc_in
116c20d2 153#define MY_swap_std_reloc_in NAME (aout, swap_std_reloc_in)
252b5132
RH		 154#endif
155
1642229e 156#ifndef MY_swap_ext_reloc_in
116c20d2 157#define MY_swap_ext_reloc_in NAME (aout, swap_ext_reloc_in)
1642229e
HPN		 158#endif
159
252b5132 160#ifndef MY_swap_std_reloc_out
116c20d2 161#define MY_swap_std_reloc_out NAME (aout, swap_std_reloc_out)
252b5132
RH		 162#endif
163
1642229e 164#ifndef MY_swap_ext_reloc_out
116c20d2 165#define MY_swap_ext_reloc_out NAME (aout, swap_ext_reloc_out)
1642229e
HPN		 166#endif
167
252b5132
RH		 168#ifndef MY_final_link_relocate
169#define MY_final_link_relocate _bfd_final_link_relocate
170#endif
171
172#ifndef MY_relocate_contents
173#define MY_relocate_contents _bfd_relocate_contents
174#endif
175
116c20d2
NC		 176#define howto_table_ext NAME (aout, ext_howto_table)
177#define howto_table_std NAME (aout, std_howto_table)
252b5132
RH		 178
179reloc_howto_type howto_table_ext[] =
180{
116c20d2
NC		 181 /* Type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone. */
182 HOWTO (RELOC_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, 0, "8", FALSE, 0, 0x000000ff, FALSE),
183 HOWTO (RELOC_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, 0, "16", FALSE, 0, 0x0000ffff, FALSE),
184 HOWTO (RELOC_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "32", FALSE, 0, 0xffffffff, FALSE),
185 HOWTO (RELOC_DISP8, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0, "DISP8", FALSE, 0, 0x000000ff, FALSE),
186 HOWTO (RELOC_DISP16, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0, "DISP16", FALSE, 0, 0x0000ffff, FALSE),
187 HOWTO (RELOC_DISP32, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0, "DISP32", FALSE, 0, 0xffffffff, FALSE),
188 HOWTO (RELOC_WDISP30, 2, 2, 30, TRUE, 0, complain_overflow_signed, 0, "WDISP30", FALSE, 0, 0x3fffffff, FALSE),
189 HOWTO (RELOC_WDISP22, 2, 2, 22, TRUE, 0, complain_overflow_signed, 0, "WDISP22", FALSE, 0, 0x003fffff, FALSE),
190 HOWTO (RELOC_HI22, 10, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "HI22", FALSE, 0, 0x003fffff, FALSE),
191 HOWTO (RELOC_22, 0, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "22", FALSE, 0, 0x003fffff, FALSE),
192 HOWTO (RELOC_13, 0, 2, 13, FALSE, 0, complain_overflow_bitfield, 0, "13", FALSE, 0, 0x00001fff, FALSE),
193 HOWTO (RELOC_LO10, 0, 2, 10, FALSE, 0, complain_overflow_dont, 0, "LO10", FALSE, 0, 0x000003ff, FALSE),
194 HOWTO (RELOC_SFA_BASE,0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "SFA_BASE", FALSE, 0, 0xffffffff, FALSE),
195 HOWTO (RELOC_SFA_OFF13,0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "SFA_OFF13", FALSE, 0, 0xffffffff, FALSE),
196 HOWTO (RELOC_BASE10, 0, 2, 10, FALSE, 0, complain_overflow_dont, 0, "BASE10", FALSE, 0, 0x000003ff, FALSE),
197 HOWTO (RELOC_BASE13, 0, 2, 13, FALSE, 0, complain_overflow_signed, 0, "BASE13", FALSE, 0, 0x00001fff, FALSE),
198 HOWTO (RELOC_BASE22, 10, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "BASE22", FALSE, 0, 0x003fffff, FALSE),
199 HOWTO (RELOC_PC10, 0, 2, 10, TRUE, 0, complain_overflow_dont, 0, "PC10", FALSE, 0, 0x000003ff, TRUE),
200 HOWTO (RELOC_PC22, 10, 2, 22, TRUE, 0, complain_overflow_signed, 0, "PC22", FALSE, 0, 0x003fffff, TRUE),
201 HOWTO (RELOC_JMP_TBL, 2, 2, 30, TRUE, 0, complain_overflow_signed, 0, "JMP_TBL", FALSE, 0, 0x3fffffff, FALSE),
202 HOWTO (RELOC_SEGOFF16,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "SEGOFF16", FALSE, 0, 0x00000000, FALSE),
203 HOWTO (RELOC_GLOB_DAT,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "GLOB_DAT", FALSE, 0, 0x00000000, FALSE),
204 HOWTO (RELOC_JMP_SLOT,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "JMP_SLOT", FALSE, 0, 0x00000000, FALSE),
205 HOWTO (RELOC_RELATIVE,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "RELATIVE", FALSE, 0, 0x00000000, FALSE),
6346d5ca
AM		 206 HOWTO (0, 0, 3, 0, FALSE, 0, complain_overflow_dont, 0, "R_SPARC_NONE",FALSE, 0, 0x00000000, TRUE),
207 HOWTO (0, 0, 3, 0, FALSE, 0, complain_overflow_dont, 0, "R_SPARC_NONE",FALSE, 0, 0x00000000, TRUE),
252b5132 208#define RELOC_SPARC_REV32 RELOC_WDISP19
116c20d2 209 HOWTO (RELOC_SPARC_REV32, 0, 2, 32, FALSE, 0, complain_overflow_dont, 0,"R_SPARC_REV32",FALSE, 0, 0xffffffff, FALSE),
252b5132
RH		 210};
211
212/* Convert standard reloc records to "arelent" format (incl byte swap). */
213
5ed6aba4
NC		 214reloc_howto_type howto_table_std[] =
215{
f7c33884 216 /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone. */
b34976b6
AM		 217HOWTO ( 0, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,0,"8", TRUE, 0x000000ff,0x000000ff, FALSE),
218HOWTO ( 1, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,0,"16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
219HOWTO ( 2, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"32", TRUE, 0xffffffff,0xffffffff, FALSE),
220HOWTO ( 3, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,0,"64", TRUE, 0xdeaddead,0xdeaddead, FALSE),
221HOWTO ( 4, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0,"DISP8", TRUE, 0x000000ff,0x000000ff, FALSE),
222HOWTO ( 5, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0,"DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
223HOWTO ( 6, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0,"DISP32", TRUE, 0xffffffff,0xffffffff, FALSE),
224HOWTO ( 7, 0, 4, 64, TRUE, 0, complain_overflow_signed, 0,"DISP64", TRUE, 0xfeedface,0xfeedface, FALSE),
225HOWTO ( 8, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"GOT_REL", FALSE, 0,0x00000000, FALSE),
226HOWTO ( 9, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,0,"BASE16", FALSE,0xffffffff,0xffffffff, FALSE),
227HOWTO (10, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"BASE32", FALSE,0xffffffff,0xffffffff, FALSE),
5f771d47
ILT		 228EMPTY_HOWTO (-1),
229EMPTY_HOWTO (-1),
230EMPTY_HOWTO (-1),
231EMPTY_HOWTO (-1),
232EMPTY_HOWTO (-1),
b34976b6 233 HOWTO (16, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"JMP_TABLE", FALSE, 0,0x00000000, FALSE),
5f771d47
ILT		 234EMPTY_HOWTO (-1),
235EMPTY_HOWTO (-1),
236EMPTY_HOWTO (-1),
237EMPTY_HOWTO (-1),
238EMPTY_HOWTO (-1),
239EMPTY_HOWTO (-1),
240EMPTY_HOWTO (-1),
241EMPTY_HOWTO (-1),
242EMPTY_HOWTO (-1),
243EMPTY_HOWTO (-1),
244EMPTY_HOWTO (-1),
245EMPTY_HOWTO (-1),
246EMPTY_HOWTO (-1),
247EMPTY_HOWTO (-1),
248EMPTY_HOWTO (-1),
b34976b6 249 HOWTO (32, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"RELATIVE", FALSE, 0,0x00000000, FALSE),
5f771d47
ILT		 250EMPTY_HOWTO (-1),
251EMPTY_HOWTO (-1),
252EMPTY_HOWTO (-1),
253EMPTY_HOWTO (-1),
254EMPTY_HOWTO (-1),
255EMPTY_HOWTO (-1),
256EMPTY_HOWTO (-1),
b34976b6 257 HOWTO (40, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"BASEREL", FALSE, 0,0x00000000, FALSE),
252b5132
RH		 258};
259
923f08ff 260#define TABLE_SIZE(TABLE) (sizeof (TABLE) / sizeof (TABLE[0]))
252b5132
RH		 261
262reloc_howto_type *
116c20d2 263NAME (aout, reloc_type_lookup) (bfd *abfd, bfd_reloc_code_real_type code)
252b5132 264{
116c20d2
NC		 265#define EXT(i, j) case i: return & howto_table_ext [j]
266#define STD(i, j) case i: return & howto_table_std [j]
252b5132 267 int ext = obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE;
f7c33884 268
252b5132 269 if (code == BFD_RELOC_CTOR)
30d10e9e 270 switch (bfd_arch_bits_per_address (abfd))
252b5132
RH		 271 {
272 case 32:
273 code = BFD_RELOC_32;
274 break;
275 case 64:
276 code = BFD_RELOC_64;
277 break;
278 }
f7c33884 279
252b5132
RH		 280 if (ext)
281 switch (code)
282 {
1642229e
HPN		 283 EXT (BFD_RELOC_8, 0);
284 EXT (BFD_RELOC_16, 1);
252b5132
RH		 285 EXT (BFD_RELOC_32, 2);
286 EXT (BFD_RELOC_HI22, 8);
287 EXT (BFD_RELOC_LO10, 11);
288 EXT (BFD_RELOC_32_PCREL_S2, 6);
289 EXT (BFD_RELOC_SPARC_WDISP22, 7);
290 EXT (BFD_RELOC_SPARC13, 10);
291 EXT (BFD_RELOC_SPARC_GOT10, 14);
292 EXT (BFD_RELOC_SPARC_BASE13, 15);
293 EXT (BFD_RELOC_SPARC_GOT13, 15);
294 EXT (BFD_RELOC_SPARC_GOT22, 16);
295 EXT (BFD_RELOC_SPARC_PC10, 17);
296 EXT (BFD_RELOC_SPARC_PC22, 18);
297 EXT (BFD_RELOC_SPARC_WPLT30, 19);
298 EXT (BFD_RELOC_SPARC_REV32, 26);
116c20d2
NC		 299 default:
300 return NULL;
252b5132
RH		 301 }
302 else
f7c33884 303 /* std relocs. */
252b5132
RH		 304 switch (code)
305 {
2846975a 306 STD (BFD_RELOC_8, 0);
252b5132
RH		 307 STD (BFD_RELOC_16, 1);
308 STD (BFD_RELOC_32, 2);
309 STD (BFD_RELOC_8_PCREL, 4);
310 STD (BFD_RELOC_16_PCREL, 5);
311 STD (BFD_RELOC_32_PCREL, 6);
312 STD (BFD_RELOC_16_BASEREL, 9);
313 STD (BFD_RELOC_32_BASEREL, 10);
116c20d2
NC		 314 default:
315 return NULL;
252b5132
RH		 316 }
317}
318
157090f7
AM		 319reloc_howto_type *
320NAME (aout, reloc_name_lookup) (bfd *abfd, const char *r_name)
321{
322 unsigned int i, size;
323 reloc_howto_type *howto_table;
324
325 if (obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE)
326 {
327 howto_table = howto_table_ext;
328 size = sizeof (howto_table_ext) / sizeof (howto_table_ext[0]);
329 }
330 else
331 {
332 howto_table = howto_table_std;
333 size = sizeof (howto_table_std) / sizeof (howto_table_std[0]);
334 }
335
336 for (i = 0; i < size; i++)
337 if (howto_table[i].name != NULL
338 && strcasecmp (howto_table[i].name, r_name) == 0)
339 return &howto_table[i];
340
341 return NULL;
342}
343
252b5132
RH		 344/*
345SUBSECTION
346 Internal entry points
347
348DESCRIPTION
349 @file{aoutx.h} exports several routines for accessing the
350 contents of an a.out file, which are gathered and exported in
351 turn by various format specific files (eg sunos.c).
252b5132
RH		 352*/
353
354/*
355FUNCTION
356 aout_@var{size}_swap_exec_header_in
357
358SYNOPSIS
359 void aout_@var{size}_swap_exec_header_in,
360 (bfd *abfd,
116c20d2 361 struct external_exec *bytes,
252b5132
RH		 362 struct internal_exec *execp);
363
364DESCRIPTION
365 Swap the information in an executable header @var{raw_bytes} taken
366 from a raw byte stream memory image into the internal exec header
367 structure @var{execp}.
368*/
369
370#ifndef NAME_swap_exec_header_in
371void
116c20d2
NC		 372NAME (aout, swap_exec_header_in) (bfd *abfd,
373 struct external_exec *bytes,
374 struct internal_exec *execp)
252b5132 375{
252b5132
RH		 376 /* The internal_exec structure has some fields that are unused in this
377 configuration (IE for i960), so ensure that all such uninitialized
378 fields are zero'd out. There are places where two of these structs
0ef5a5bd 379 are memcmp'd, and thus the contents do matter. */
116c20d2 380 memset ((void *) execp, 0, sizeof (struct internal_exec));
252b5132 381 /* Now fill in fields in the execp, from the bytes in the raw data. */
dc810e39 382 execp->a_info = H_GET_32 (abfd, bytes->e_info);
252b5132
RH		 383 execp->a_text = GET_WORD (abfd, bytes->e_text);
384 execp->a_data = GET_WORD (abfd, bytes->e_data);
385 execp->a_bss = GET_WORD (abfd, bytes->e_bss);
386 execp->a_syms = GET_WORD (abfd, bytes->e_syms);
387 execp->a_entry = GET_WORD (abfd, bytes->e_entry);
388 execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
389 execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
390}
116c20d2 391#define NAME_swap_exec_header_in NAME (aout, swap_exec_header_in)
252b5132
RH		 392#endif
393
394/*
395FUNCTION
396 aout_@var{size}_swap_exec_header_out
397
398SYNOPSIS
399 void aout_@var{size}_swap_exec_header_out
400 (bfd *abfd,
401 struct internal_exec *execp,
402 struct external_exec *raw_bytes);
403
404DESCRIPTION
405 Swap the information in an internal exec header structure
406 @var{execp} into the buffer @var{raw_bytes} ready for writing to disk.
407*/
408void
116c20d2
NC		 409NAME (aout, swap_exec_header_out) (bfd *abfd,
410 struct internal_exec *execp,
411 struct external_exec *bytes)
252b5132 412{
0ef5a5bd 413 /* Now fill in fields in the raw data, from the fields in the exec struct. */
dc810e39 414 H_PUT_32 (abfd, execp->a_info , bytes->e_info);
252b5132
RH		 415 PUT_WORD (abfd, execp->a_text , bytes->e_text);
416 PUT_WORD (abfd, execp->a_data , bytes->e_data);
417 PUT_WORD (abfd, execp->a_bss , bytes->e_bss);
418 PUT_WORD (abfd, execp->a_syms , bytes->e_syms);
419 PUT_WORD (abfd, execp->a_entry , bytes->e_entry);
420 PUT_WORD (abfd, execp->a_trsize, bytes->e_trsize);
421 PUT_WORD (abfd, execp->a_drsize, bytes->e_drsize);
422}
423
424/* Make all the section for an a.out file. */
425
b34976b6 426bfd_boolean
116c20d2 427NAME (aout, make_sections) (bfd *abfd)
252b5132 428{
116c20d2 429 if (obj_textsec (abfd) == NULL && bfd_make_section (abfd, ".text") == NULL)
b34976b6 430 return FALSE;
116c20d2 431 if (obj_datasec (abfd) == NULL && bfd_make_section (abfd, ".data") == NULL)
b34976b6 432 return FALSE;
116c20d2 433 if (obj_bsssec (abfd) == NULL && bfd_make_section (abfd, ".bss") == NULL)
b34976b6
AM		 434 return FALSE;
435 return TRUE;
252b5132
RH		 436}
437
438/*
439FUNCTION
440 aout_@var{size}_some_aout_object_p
441
442SYNOPSIS
443 const bfd_target *aout_@var{size}_some_aout_object_p
444 (bfd *abfd,
116c20d2
NC		 445 struct internal_exec *execp,
446 const bfd_target *(*callback_to_real_object_p) (bfd *));
252b5132
RH		 447
448DESCRIPTION
449 Some a.out variant thinks that the file open in @var{abfd}
450 checking is an a.out file. Do some more checking, and set up
451 for access if it really is. Call back to the calling
452 environment's "finish up" function just before returning, to
453 handle any last-minute setup.
454*/
455
456const bfd_target *
116c20d2
NC		 457NAME (aout, some_aout_object_p) (bfd *abfd,
458 struct internal_exec *execp,
459 const bfd_target *(*callback_to_real_object_p) (bfd *))
252b5132
RH		 460{
461 struct aout_data_struct *rawptr, *oldrawptr;
462 const bfd_target *result;
116c20d2 463 bfd_size_type amt = sizeof (* rawptr);
252b5132 464
a50b1753 465 rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
252b5132 466 if (rawptr == NULL)
116c20d2 467 return NULL;
252b5132
RH		 468
469 oldrawptr = abfd->tdata.aout_data;
470 abfd->tdata.aout_data = rawptr;
471
472 /* Copy the contents of the old tdata struct.
473 In particular, we want the subformat, since for hpux it was set in
474 hp300hpux.c:swap_exec_header_in and will be used in
475 hp300hpux.c:callback. */
476 if (oldrawptr != NULL)
477 *abfd->tdata.aout_data = *oldrawptr;
478
479 abfd->tdata.aout_data->a.hdr = &rawptr->e;
f7c33884
NC		 480 /* Copy in the internal_exec struct. */
481 *(abfd->tdata.aout_data->a.hdr) = *execp;
252b5132
RH		 482 execp = abfd->tdata.aout_data->a.hdr;
483
f7c33884 484 /* Set the file flags. */
252b5132
RH		 485 abfd->flags = BFD_NO_FLAGS;
486 if (execp->a_drsize || execp->a_trsize)
487 abfd->flags |= HAS_RELOC;
f7c33884 488 /* Setting of EXEC_P has been deferred to the bottom of this function. */
252b5132
RH		 489 if (execp->a_syms)
490 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
bbb1afc8 491 if (N_DYNAMIC (execp))
252b5132
RH		 492 abfd->flags |= DYNAMIC;
493
bbb1afc8 494 if (N_MAGIC (execp) == ZMAGIC)
252b5132
RH		 495 {
496 abfd->flags |= D_PAGED | WP_TEXT;
497 adata (abfd).magic = z_magic;
498 }
bbb1afc8 499 else if (N_MAGIC (execp) == QMAGIC)
252b5132
RH		 500 {
501 abfd->flags |= D_PAGED | WP_TEXT;
502 adata (abfd).magic = z_magic;
503 adata (abfd).subformat = q_magic_format;
504 }
bbb1afc8 505 else if (N_MAGIC (execp) == NMAGIC)
252b5132
RH		 506 {
507 abfd->flags |= WP_TEXT;
508 adata (abfd).magic = n_magic;
509 }
bbb1afc8
AM		 510 else if (N_MAGIC (execp) == OMAGIC
511 || N_MAGIC (execp) == BMAGIC)
252b5132
RH		 512 adata (abfd).magic = o_magic;
513 else
116c20d2
NC		 514 /* Should have been checked with N_BADMAG before this routine
515 was called. */
516 abort ();
252b5132
RH		 517
518 bfd_get_start_address (abfd) = execp->a_entry;
519
116c20d2 520 obj_aout_symbols (abfd) = NULL;
252b5132
RH		 521 bfd_get_symcount (abfd) = execp->a_syms / sizeof (struct external_nlist);
522
523 /* The default relocation entry size is that of traditional V7 Unix. */
524 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
525
0ef5a5bd 526 /* The default symbol entry size is that of traditional Unix. */
252b5132
RH		 527 obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE;
528
529#ifdef USE_MMAP
530 bfd_init_window (&obj_aout_sym_window (abfd));
531 bfd_init_window (&obj_aout_string_window (abfd));
532#endif
533 obj_aout_external_syms (abfd) = NULL;
534 obj_aout_external_strings (abfd) = NULL;
535 obj_aout_sym_hashes (abfd) = NULL;
536
116c20d2 537 if (! NAME (aout, make_sections) (abfd))
487e54f2 538 goto error_ret;
252b5132 539
eea6121a
AM		 540 obj_datasec (abfd)->size = execp->a_data;
541 obj_bsssec (abfd)->size = execp->a_bss;
252b5132
RH		 542
543 obj_textsec (abfd)->flags =
544 (execp->a_trsize != 0
545 ? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC)
546 : (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS));
547 obj_datasec (abfd)->flags =
548 (execp->a_drsize != 0
549 ? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC)
550 : (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS));
551 obj_bsssec (abfd)->flags = SEC_ALLOC;
552
553#ifdef THIS_IS_ONLY_DOCUMENTATION
554 /* The common code can't fill in these things because they depend
555 on either the start address of the text segment, the rounding
556 up of virtual addresses between segments, or the starting file
557 position of the text segment -- all of which varies among different
558 versions of a.out. */
559
560 /* Call back to the format-dependent code to fill in the rest of the
561 fields and do any further cleanup. Things that should be filled
562 in by the callback: */
563
564 struct exec *execp = exec_hdr (abfd);
565
bbb1afc8 566 obj_textsec (abfd)->size = N_TXTSIZE (execp);
f7c33884 567 /* Data and bss are already filled in since they're so standard. */
252b5132 568
f7c33884 569 /* The virtual memory addresses of the sections. */
bbb1afc8
AM		 570 obj_textsec (abfd)->vma = N_TXTADDR (execp);
571 obj_datasec (abfd)->vma = N_DATADDR (execp);
572 obj_bsssec (abfd)->vma = N_BSSADDR (execp);
252b5132 573
f7c33884 574 /* The file offsets of the sections. */
bbb1afc8
AM		 575 obj_textsec (abfd)->filepos = N_TXTOFF (execp);
576 obj_datasec (abfd)->filepos = N_DATOFF (execp);
252b5132 577
f7c33884 578 /* The file offsets of the relocation info. */
bbb1afc8
AM		 579 obj_textsec (abfd)->rel_filepos = N_TRELOFF (execp);
580 obj_datasec (abfd)->rel_filepos = N_DRELOFF (execp);
252b5132
RH		 581
582 /* The file offsets of the string table and symbol table. */
bbb1afc8
AM		 583 obj_str_filepos (abfd) = N_STROFF (execp);
584 obj_sym_filepos (abfd) = N_SYMOFF (execp);
252b5132
RH		 585
586 /* Determine the architecture and machine type of the object file. */
bbb1afc8 587 switch (N_MACHTYPE (exec_hdr (abfd)))
923f08ff
AM		 588 {
589 default:
590 abfd->obj_arch = bfd_arch_obscure;
591 break;
592 }
252b5132 593
923f08ff
AM		 594 adata (abfd)->page_size = TARGET_PAGE_SIZE;
595 adata (abfd)->segment_size = SEGMENT_SIZE;
596 adata (abfd)->exec_bytes_size = EXEC_BYTES_SIZE;
252b5132
RH		 597
598 return abfd->xvec;
599
600 /* The architecture is encoded in various ways in various a.out variants,
601 or is not encoded at all in some of them. The relocation size depends
602 on the architecture and the a.out variant. Finally, the return value
603 is the bfd_target vector in use. If an error occurs, return zero and
604 set bfd_error to the appropriate error code.
605
606 Formats such as b.out, which have additional fields in the a.out
607 header, should cope with them in this callback as well. */
608#endif /* DOCUMENTATION */
609
beb0d161 610 result = (*callback_to_real_object_p) (abfd);
252b5132
RH		 611
612 /* Now that the segment addresses have been worked out, take a better
613 guess at whether the file is executable. If the entry point
614 is within the text segment, assume it is. (This makes files
615 executable even if their entry point address is 0, as long as
616 their text starts at zero.).
617
618 This test had to be changed to deal with systems where the text segment
619 runs at a different location than the default. The problem is that the
620 entry address can appear to be outside the text segment, thus causing an
621 erroneous conclusion that the file isn't executable.
622
623 To fix this, we now accept any non-zero entry point as an indication of
624 executability. This will work most of the time, since only the linker
0ef5a5bd 625 sets the entry point, and that is likely to be non-zero for most systems. */
252b5132
RH		 626
627 if (execp->a_entry != 0
923f08ff
AM		 628 || (execp->a_entry >= obj_textsec (abfd)->vma
629 && execp->a_entry < (obj_textsec (abfd)->vma
4c1534c7
AM		 630 + obj_textsec (abfd)->size)
631 && execp->a_trsize == 0
632 && execp->a_drsize == 0))
252b5132
RH		 633 abfd->flags |= EXEC_P;
634#ifdef STAT_FOR_EXEC
635 else
636 {
637 struct stat stat_buf;
638
639 /* The original heuristic doesn't work in some important cases.
640 The a.out file has no information about the text start
641 address. For files (like kernels) linked to non-standard
642 addresses (ld -Ttext nnn) the entry point may not be between
643 the default text start (obj_textsec(abfd)->vma) and
644 (obj_textsec(abfd)->vma) + text size. This is not just a mach
645 issue. Many kernels are loaded at non standard addresses. */
646 if (abfd->iostream != NULL
647 && (abfd->flags & BFD_IN_MEMORY) == 0
923f08ff 648 && (fstat (fileno ((FILE *) (abfd->iostream)), &stat_buf) == 0)
252b5132
RH		 649 && ((stat_buf.st_mode & 0111) != 0))
650 abfd->flags |= EXEC_P;
651 }
652#endif /* STAT_FOR_EXEC */
653
654 if (result)
0e71e495 655 return result;
487e54f2
AM		 656
657 error_ret:
658 bfd_release (abfd, rawptr);
659 abfd->tdata.aout_data = oldrawptr;
660 return NULL;
252b5132
RH		 661}
662
663/*
664FUNCTION
665 aout_@var{size}_mkobject
666
667SYNOPSIS
b34976b6 668 bfd_boolean aout_@var{size}_mkobject, (bfd *abfd);
252b5132
RH		 669
670DESCRIPTION
671 Initialize BFD @var{abfd} for use with a.out files.
672*/
673
b34976b6 674bfd_boolean
116c20d2 675NAME (aout, mkobject) (bfd *abfd)
252b5132 676{
dc810e39 677 struct aout_data_struct *rawptr;
116c20d2 678 bfd_size_type amt = sizeof (* rawptr);
252b5132
RH		 679
680 bfd_set_error (bfd_error_system_call);
681
a50b1753 682 rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
252b5132 683 if (rawptr == NULL)
b34976b6 684 return FALSE;
252b5132
RH		 685
686 abfd->tdata.aout_data = rawptr;
687 exec_hdr (abfd) = &(rawptr->e);
688
116c20d2
NC		 689 obj_textsec (abfd) = NULL;
690 obj_datasec (abfd) = NULL;
691 obj_bsssec (abfd) = NULL;
252b5132 692
b34976b6 693 return TRUE;
252b5132
RH		 694}
695
252b5132
RH		 696/*
697FUNCTION
698 aout_@var{size}_machine_type
699
700SYNOPSIS
701 enum machine_type aout_@var{size}_machine_type
702 (enum bfd_architecture arch,
116c20d2
NC		 703 unsigned long machine,
704 bfd_boolean *unknown);
252b5132
RH		 705
706DESCRIPTION
707 Keep track of machine architecture and machine type for
708 a.out's. Return the <<machine_type>> for a particular
709 architecture and machine, or <<M_UNKNOWN>> if that exact architecture
710 and machine can't be represented in a.out format.
711
712 If the architecture is understood, machine type 0 (default)
713 is always understood.
714*/
715
716enum machine_type
116c20d2
NC		 717NAME (aout, machine_type) (enum bfd_architecture arch,
718 unsigned long machine,
719 bfd_boolean *unknown)
252b5132
RH		 720{
721 enum machine_type arch_flags;
722
723 arch_flags = M_UNKNOWN;
b34976b6 724 *unknown = TRUE;
252b5132 725
923f08ff
AM		 726 switch (arch)
727 {
728 case bfd_arch_sparc:
729 if (machine == 0
730 || machine == bfd_mach_sparc
731 || machine == bfd_mach_sparc_sparclite
732 || machine == bfd_mach_sparc_sparclite_le
74d26813
L		 733 || machine == bfd_mach_sparc_v8plus
734 || machine == bfd_mach_sparc_v8plusa
735 || machine == bfd_mach_sparc_v8plusb
4f26fb3a
JM		 736 || machine == bfd_mach_sparc_v8plusc
737 || machine == bfd_mach_sparc_v8plusd
738 || machine == bfd_mach_sparc_v8pluse
739 || machine == bfd_mach_sparc_v8plusv
740 || machine == bfd_mach_sparc_v8plusm
74d26813
L		 741 || machine == bfd_mach_sparc_v9
742 || machine == bfd_mach_sparc_v9a
4f26fb3a
JM		 743 || machine == bfd_mach_sparc_v9b
744 || machine == bfd_mach_sparc_v9c
745 || machine == bfd_mach_sparc_v9d
746 || machine == bfd_mach_sparc_v9e
747 || machine == bfd_mach_sparc_v9v
748 || machine == bfd_mach_sparc_v9m)
923f08ff
AM		 749 arch_flags = M_SPARC;
750 else if (machine == bfd_mach_sparc_sparclet)
751 arch_flags = M_SPARCLET;
752 break;
753
754 case bfd_arch_m68k:
755 switch (machine)
756 {
757 case 0: arch_flags = M_68010; break;
b34976b6 758 case bfd_mach_m68000: arch_flags = M_UNKNOWN; *unknown = FALSE; break;
923f08ff
AM		 759 case bfd_mach_m68010: arch_flags = M_68010; break;
760 case bfd_mach_m68020: arch_flags = M_68020; break;
761 default: arch_flags = M_UNKNOWN; break;
762 }
252b5132 763 break;
923f08ff
AM		 764
765 case bfd_arch_i386:
3b77b1d5
AM		 766 if (machine == 0
767 || machine == bfd_mach_i386_i386
768 || machine == bfd_mach_i386_i386_intel_syntax)
923f08ff 769 arch_flags = M_386;
252b5132 770 break;
923f08ff 771
923f08ff
AM		 772 case bfd_arch_arm:
773 if (machine == 0)
774 arch_flags = M_ARM;
252b5132 775 break;
252b5132 776
923f08ff
AM		 777 case bfd_arch_mips:
778 switch (machine)
779 {
780 case 0:
781 case bfd_mach_mips3000:
782 case bfd_mach_mips3900:
783 arch_flags = M_MIPS1;
784 break;
785 case bfd_mach_mips6000:
786 arch_flags = M_MIPS2;
787 break;
788 case bfd_mach_mips4000:
789 case bfd_mach_mips4010:
790 case bfd_mach_mips4100:
791 case bfd_mach_mips4300:
792 case bfd_mach_mips4400:
793 case bfd_mach_mips4600:
794 case bfd_mach_mips4650:
795 case bfd_mach_mips8000:
0d2e43ed 796 case bfd_mach_mips9000:
923f08ff
AM		 797 case bfd_mach_mips10000:
798 case bfd_mach_mips12000:
3aa3176b
TS		 799 case bfd_mach_mips14000:
800 case bfd_mach_mips16000:
923f08ff
AM		 801 case bfd_mach_mips16:
802 case bfd_mach_mipsisa32:
af7ee8bf 803 case bfd_mach_mipsisa32r2:
ae52f483
AB		 804 case bfd_mach_mipsisa32r3:
805 case bfd_mach_mipsisa32r5:
7361da2c 806 case bfd_mach_mipsisa32r6:
923f08ff
AM		 807 case bfd_mach_mips5:
808 case bfd_mach_mipsisa64:
5f74bc13 809 case bfd_mach_mipsisa64r2:
ae52f483
AB		 810 case bfd_mach_mipsisa64r3:
811 case bfd_mach_mipsisa64r5:
7361da2c 812 case bfd_mach_mipsisa64r6:
923f08ff 813 case bfd_mach_mips_sb1:
52b6b6b9 814 case bfd_mach_mips_xlr:
923f08ff
AM		 815 /* FIXME: These should be MIPS3, MIPS4, MIPS16, MIPS32, etc. */
816 arch_flags = M_MIPS2;
817 break;
818 default:
819 arch_flags = M_UNKNOWN;
820 break;
821 }
822 break;
823
824 case bfd_arch_ns32k:
825 switch (machine)
826 {
827 case 0: arch_flags = M_NS32532; break;
828 case 32032: arch_flags = M_NS32032; break;
829 case 32532: arch_flags = M_NS32532; break;
830 default: arch_flags = M_UNKNOWN; break;
831 }
832 break;
252b5132 833
923f08ff 834 case bfd_arch_vax:
b34976b6 835 *unknown = FALSE;
923f08ff 836 break;
06c15ad7 837
923f08ff
AM		 838 case bfd_arch_cris:
839 if (machine == 0 || machine == 255)
840 arch_flags = M_CRIS;
841 break;
842
727e493d
MK		 843 case bfd_arch_m88k:
844 *unknown = FALSE;
845 break;
846
923f08ff
AM		 847 default:
848 arch_flags = M_UNKNOWN;
849 }
252b5132
RH		 850
851 if (arch_flags != M_UNKNOWN)
b34976b6 852 *unknown = FALSE;
252b5132
RH		 853
854 return arch_flags;
855}
856
252b5132
RH		 857/*
858FUNCTION
859 aout_@var{size}_set_arch_mach
860
861SYNOPSIS
b34976b6 862 bfd_boolean aout_@var{size}_set_arch_mach,
252b5132
RH		 863 (bfd *,
864 enum bfd_architecture arch,
116c20d2 865 unsigned long machine);
252b5132
RH		 866
867DESCRIPTION
868 Set the architecture and the machine of the BFD @var{abfd} to the
869 values @var{arch} and @var{machine}. Verify that @var{abfd}'s format
870 can support the architecture required.
871*/
872
b34976b6 873bfd_boolean
116c20d2
NC		 874NAME (aout, set_arch_mach) (bfd *abfd,
875 enum bfd_architecture arch,
876 unsigned long machine)
252b5132
RH		 877{
878 if (! bfd_default_set_arch_mach (abfd, arch, machine))
b34976b6 879 return FALSE;
252b5132
RH		 880
881 if (arch != bfd_arch_unknown)
882 {
b34976b6 883 bfd_boolean unknown;
252b5132 884
116c20d2 885 NAME (aout, machine_type) (arch, machine, &unknown);
252b5132 886 if (unknown)
b34976b6 887 return FALSE;
252b5132
RH		 888 }
889
f7c33884 890 /* Determine the size of a relocation entry. */
923f08ff
AM		 891 switch (arch)
892 {
893 case bfd_arch_sparc:
923f08ff
AM		 894 case bfd_arch_mips:
895 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
896 break;
897 default:
898 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
899 break;
900 }
252b5132 901
923f08ff 902 return (*aout_backend_info (abfd)->set_sizes) (abfd);
252b5132
RH		 903}
904
905static void
116c20d2 906adjust_o_magic (bfd *abfd, struct internal_exec *execp)
252b5132
RH		 907{
908 file_ptr pos = adata (abfd).exec_bytes_size;
909 bfd_vma vma = 0;
910 int pad = 0;
911
912 /* Text. */
923f08ff
AM		 913 obj_textsec (abfd)->filepos = pos;
914 if (!obj_textsec (abfd)->user_set_vma)
915 obj_textsec (abfd)->vma = vma;
252b5132 916 else
923f08ff 917 vma = obj_textsec (abfd)->vma;
252b5132 918
eea6121a
AM		 919 pos += obj_textsec (abfd)->size;
920 vma += obj_textsec (abfd)->size;
252b5132
RH		 921
922 /* Data. */
923f08ff 923 if (!obj_datasec (abfd)->user_set_vma)
252b5132 924 {
eea6121a 925 obj_textsec (abfd)->size += pad;
252b5132
RH		 926 pos += pad;
927 vma += pad;
923f08ff 928 obj_datasec (abfd)->vma = vma;
252b5132
RH		 929 }
930 else
923f08ff
AM		 931 vma = obj_datasec (abfd)->vma;
932 obj_datasec (abfd)->filepos = pos;
eea6121a
AM		 933 pos += obj_datasec (abfd)->size;
934 vma += obj_datasec (abfd)->size;
252b5132
RH		 935
936 /* BSS. */
923f08ff 937 if (!obj_bsssec (abfd)->user_set_vma)
252b5132 938 {
eea6121a 939 obj_datasec (abfd)->size += pad;
252b5132
RH		 940 pos += pad;
941 vma += pad;
923f08ff 942 obj_bsssec (abfd)->vma = vma;
252b5132
RH		 943 }
944 else
945 {
08da05b0 946 /* The VMA of the .bss section is set by the VMA of the
252b5132
RH		 947 .data section plus the size of the .data section. We may
948 need to add padding bytes to make this true. */
949 pad = obj_bsssec (abfd)->vma - vma;
950 if (pad > 0)
951 {
eea6121a 952 obj_datasec (abfd)->size += pad;
252b5132
RH		 953 pos += pad;
954 }
955 }
923f08ff 956 obj_bsssec (abfd)->filepos = pos;
252b5132
RH		 957
958 /* Fix up the exec header. */
eea6121a
AM		 959 execp->a_text = obj_textsec (abfd)->size;
960 execp->a_data = obj_datasec (abfd)->size;
961 execp->a_bss = obj_bsssec (abfd)->size;
bbb1afc8 962 N_SET_MAGIC (execp, OMAGIC);
252b5132
RH		 963}
964
965static void
116c20d2 966adjust_z_magic (bfd *abfd, struct internal_exec *execp)
252b5132
RH		 967{
968 bfd_size_type data_pad, text_pad;
969 file_ptr text_end;
dc810e39 970 const struct aout_backend_data *abdp;
116c20d2
NC		 971 /* TRUE if text includes exec header. */
972 bfd_boolean ztih;
0ef5a5bd 973
252b5132
RH		 974 abdp = aout_backend_info (abfd);
975
976 /* Text. */
977 ztih = (abdp != NULL
978 && (abdp->text_includes_header
979 || obj_aout_subformat (abfd) == q_magic_format));
923f08ff
AM		 980 obj_textsec (abfd)->filepos = (ztih
981 ? adata (abfd).exec_bytes_size
982 : adata (abfd).zmagic_disk_block_size);
983 if (! obj_textsec (abfd)->user_set_vma)
252b5132
RH		 984 {
985 /* ?? Do we really need to check for relocs here? */
923f08ff
AM		 986 obj_textsec (abfd)->vma = ((abfd->flags & HAS_RELOC)
987 ? 0
988 : (ztih
989 ? (abdp->default_text_vma
990 + adata (abfd).exec_bytes_size)
991 : abdp->default_text_vma));
252b5132
RH		 992 text_pad = 0;
993 }
994 else
995 {
996 /* The .text section is being loaded at an unusual address. We
997 may need to pad it such that the .data section starts at a page
998 boundary. */
999 if (ztih)
1000 text_pad = ((obj_textsec (abfd)->filepos - obj_textsec (abfd)->vma)
1001 & (adata (abfd).page_size - 1));
1002 else
1003 text_pad = ((- obj_textsec (abfd)->vma)
1004 & (adata (abfd).page_size - 1));
1005 }
1006
1007 /* Find start of data. */
1008 if (ztih)
1009 {
eea6121a 1010 text_end = obj_textsec (abfd)->filepos + obj_textsec (abfd)->size;
252b5132
RH		 1011 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
1012 }
1013 else
1014 {
1015 /* Note that if page_size == zmagic_disk_block_size, then
1016 filepos == page_size, and this case is the same as the ztih
1017 case. */
eea6121a 1018 text_end = obj_textsec (abfd)->size;
252b5132
RH		 1019 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
1020 text_end += obj_textsec (abfd)->filepos;
1021 }
eea6121a 1022 obj_textsec (abfd)->size += text_pad;
252b5132
RH		 1023 text_end += text_pad;
1024
1025 /* Data. */
923f08ff 1026 if (!obj_datasec (abfd)->user_set_vma)
252b5132
RH		 1027 {
1028 bfd_vma vma;
eea6121a 1029 vma = obj_textsec (abfd)->vma + obj_textsec (abfd)->size;
923f08ff 1030 obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
252b5132
RH		 1031 }
1032 if (abdp && abdp->zmagic_mapped_contiguous)
1033 {
dee0a8f4
NC		 1034 asection * text = obj_textsec (abfd);
1035 asection * data = obj_datasec (abfd);
1036
eea6121a 1037 text_pad = data->vma - (text->vma + text->size);
dee0a8f4
NC		 1038 /* Only pad the text section if the data
1039 section is going to be placed after it. */
1040 if (text_pad > 0)
eea6121a 1041 text->size += text_pad;
252b5132 1042 }
923f08ff 1043 obj_datasec (abfd)->filepos = (obj_textsec (abfd)->filepos
eea6121a 1044 + obj_textsec (abfd)->size);
0ef5a5bd 1045
252b5132 1046 /* Fix up exec header while we're at it. */
eea6121a 1047 execp->a_text = obj_textsec (abfd)->size;
252b5132 1048 if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted)))
923f08ff 1049 execp->a_text += adata (abfd).exec_bytes_size;
252b5132 1050 if (obj_aout_subformat (abfd) == q_magic_format)
bbb1afc8 1051 N_SET_MAGIC (execp, QMAGIC);
252b5132 1052 else
bbb1afc8 1053 N_SET_MAGIC (execp, ZMAGIC);
252b5132
RH		 1054
1055 /* Spec says data section should be rounded up to page boundary. */
eea6121a
AM		 1056 obj_datasec (abfd)->size
1057 = align_power (obj_datasec (abfd)->size,
923f08ff 1058 obj_bsssec (abfd)->alignment_power);
eea6121a 1059 execp->a_data = BFD_ALIGN (obj_datasec (abfd)->size,
923f08ff 1060 adata (abfd).page_size);
eea6121a 1061 data_pad = execp->a_data - obj_datasec (abfd)->size;
252b5132
RH		 1062
1063 /* BSS. */
923f08ff
AM		 1064 if (!obj_bsssec (abfd)->user_set_vma)
1065 obj_bsssec (abfd)->vma = (obj_datasec (abfd)->vma
eea6121a 1066 + obj_datasec (abfd)->size);
252b5132
RH		 1067 /* If the BSS immediately follows the data section and extra space
1068 in the page is left after the data section, fudge data
1069 in the header so that the bss section looks smaller by that
1070 amount. We'll start the bss section there, and lie to the OS.
1071 (Note that a linker script, as well as the above assignment,
1072 could have explicitly set the BSS vma to immediately follow
1073 the data section.) */
923f08ff 1074 if (align_power (obj_bsssec (abfd)->vma, obj_bsssec (abfd)->alignment_power)
eea6121a
AM		 1075 == obj_datasec (abfd)->vma + obj_datasec (abfd)->size)
1076 execp->a_bss = (data_pad > obj_bsssec (abfd)->size
1077 ? 0 : obj_bsssec (abfd)->size - data_pad);
252b5132 1078 else
eea6121a 1079 execp->a_bss = obj_bsssec (abfd)->size;
252b5132
RH		 1080}
1081
1082static void
116c20d2 1083adjust_n_magic (bfd *abfd, struct internal_exec *execp)
252b5132 1084{
923f08ff 1085 file_ptr pos = adata (abfd).exec_bytes_size;
252b5132
RH		 1086 bfd_vma vma = 0;
1087 int pad;
0ef5a5bd 1088
252b5132 1089 /* Text. */
923f08ff
AM		 1090 obj_textsec (abfd)->filepos = pos;
1091 if (!obj_textsec (abfd)->user_set_vma)
1092 obj_textsec (abfd)->vma = vma;
252b5132 1093 else
923f08ff 1094 vma = obj_textsec (abfd)->vma;
eea6121a
AM		 1095 pos += obj_textsec (abfd)->size;
1096 vma += obj_textsec (abfd)->size;
252b5132
RH		 1097
1098 /* Data. */
923f08ff
AM		 1099 obj_datasec (abfd)->filepos = pos;
1100 if (!obj_datasec (abfd)->user_set_vma)
1101 obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
1102 vma = obj_datasec (abfd)->vma;
0ef5a5bd 1103
252b5132 1104 /* Since BSS follows data immediately, see if it needs alignment. */
eea6121a 1105 vma += obj_datasec (abfd)->size;
923f08ff 1106 pad = align_power (vma, obj_bsssec (abfd)->alignment_power) - vma;
eea6121a
AM		 1107 obj_datasec (abfd)->size += pad;
1108 pos += obj_datasec (abfd)->size;
252b5132
RH		 1109
1110 /* BSS. */
923f08ff
AM		 1111 if (!obj_bsssec (abfd)->user_set_vma)
1112 obj_bsssec (abfd)->vma = vma;
252b5132 1113 else
923f08ff 1114 vma = obj_bsssec (abfd)->vma;
252b5132
RH		 1115
1116 /* Fix up exec header. */
eea6121a
AM		 1117 execp->a_text = obj_textsec (abfd)->size;
1118 execp->a_data = obj_datasec (abfd)->size;
1119 execp->a_bss = obj_bsssec (abfd)->size;
bbb1afc8 1120 N_SET_MAGIC (execp, NMAGIC);
252b5132
RH		 1121}
1122
b34976b6 1123bfd_boolean
3a8c4a5b 1124NAME (aout, adjust_sizes_and_vmas) (bfd *abfd)
252b5132
RH		 1125{
1126 struct internal_exec *execp = exec_hdr (abfd);
1127
116c20d2 1128 if (! NAME (aout, make_sections) (abfd))
b34976b6 1129 return FALSE;
252b5132 1130
923f08ff 1131 if (adata (abfd).magic != undecided_magic)
b34976b6 1132 return TRUE;
252b5132 1133
eea6121a
AM		 1134 obj_textsec (abfd)->size =
1135 align_power (obj_textsec (abfd)->size,
923f08ff 1136 obj_textsec (abfd)->alignment_power);
252b5132 1137
252b5132
RH		 1138 /* Rule (heuristic) for when to pad to a new page. Note that there
1139 are (at least) two ways demand-paged (ZMAGIC) files have been
1140 handled. Most Berkeley-based systems start the text segment at
1141 (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text
1142 segment right after the exec header; the latter is counted in the
1143 text segment size, and is paged in by the kernel with the rest of
0ef5a5bd 1144 the text. */
252b5132
RH		 1145
1146 /* This perhaps isn't the right way to do this, but made it simpler for me
1147 to understand enough to implement it. Better would probably be to go
1148 right from BFD flags to alignment/positioning characteristics. But the
1149 old code was sloppy enough about handling the flags, and had enough
1150 other magic, that it was a little hard for me to understand. I think
1151 I understand it better now, but I haven't time to do the cleanup this
1152 minute. */
1153
1154 if (abfd->flags & D_PAGED)
1155 /* Whether or not WP_TEXT is set -- let D_PAGED override. */
923f08ff 1156 adata (abfd).magic = z_magic;
252b5132 1157 else if (abfd->flags & WP_TEXT)
923f08ff 1158 adata (abfd).magic = n_magic;
252b5132 1159 else
923f08ff 1160 adata (abfd).magic = o_magic;
252b5132
RH		 1161
1162#ifdef BFD_AOUT_DEBUG /* requires gcc2 */
1163#if __GNUC__ >= 2
1164 fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n",
1165 ({ char *str;
923f08ff
AM		 1166 switch (adata (abfd).magic)
1167 {
1168 case n_magic: str = "NMAGIC"; break;
1169 case o_magic: str = "OMAGIC"; break;
1170 case z_magic: str = "ZMAGIC"; break;
1171 default: abort ();
1172 }
252b5132
RH		 1173 str;
1174 }),
eea6121a 1175 obj_textsec (abfd)->vma, obj_textsec (abfd)->size,
923f08ff 1176 obj_textsec (abfd)->alignment_power,
eea6121a 1177 obj_datasec (abfd)->vma, obj_datasec (abfd)->size,
923f08ff 1178 obj_datasec (abfd)->alignment_power,
eea6121a 1179 obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size,
923f08ff 1180 obj_bsssec (abfd)->alignment_power);
252b5132
RH		 1181#endif
1182#endif
1183
923f08ff 1184 switch (adata (abfd).magic)
252b5132
RH		 1185 {
1186 case o_magic:
1187 adjust_o_magic (abfd, execp);
1188 break;
1189 case z_magic:
1190 adjust_z_magic (abfd, execp);
1191 break;
1192 case n_magic:
1193 adjust_n_magic (abfd, execp);
1194 break;
1195 default:
1196 abort ();
1197 }
1198
1199#ifdef BFD_AOUT_DEBUG
1200 fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n",
eea6121a 1201 obj_textsec (abfd)->vma, obj_textsec (abfd)->size,
923f08ff 1202 obj_textsec (abfd)->filepos,
eea6121a 1203 obj_datasec (abfd)->vma, obj_datasec (abfd)->size,
923f08ff 1204 obj_datasec (abfd)->filepos,
eea6121a 1205 obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size);
252b5132
RH		 1206#endif
1207
b34976b6 1208 return TRUE;
252b5132
RH		 1209}
1210
1211/*
1212FUNCTION
1213 aout_@var{size}_new_section_hook
1214
1215SYNOPSIS
b34976b6 1216 bfd_boolean aout_@var{size}_new_section_hook,
252b5132 1217 (bfd *abfd,
116c20d2 1218 asection *newsect);
252b5132
RH		 1219
1220DESCRIPTION
1221 Called by the BFD in response to a @code{bfd_make_section}
1222 request.
1223*/
b34976b6 1224bfd_boolean
116c20d2 1225NAME (aout, new_section_hook) (bfd *abfd, asection *newsect)
252b5132 1226{
f7c33884 1227 /* Align to double at least. */
923f08ff 1228 newsect->alignment_power = bfd_get_arch_info (abfd)->section_align_power;
252b5132 1229
252b5132 1230 if (bfd_get_format (abfd) == bfd_object)
f7c33884
NC		 1231 {
1232 if (obj_textsec (abfd) == NULL && !strcmp (newsect->name, ".text"))
1233 {
1234 obj_textsec (abfd)= newsect;
1235 newsect->target_index = N_TEXT;
f7c33884 1236 }
f592407e 1237 else if (obj_datasec (abfd) == NULL && !strcmp (newsect->name, ".data"))
f7c33884
NC		 1238 {
1239 obj_datasec (abfd) = newsect;
1240 newsect->target_index = N_DATA;
f7c33884 1241 }
f592407e 1242 else if (obj_bsssec (abfd) == NULL && !strcmp (newsect->name, ".bss"))
f7c33884
NC		 1243 {
1244 obj_bsssec (abfd) = newsect;
1245 newsect->target_index = N_BSS;
f7c33884
NC		 1246 }
1247 }
252b5132 1248
f7c33884 1249 /* We allow more than three sections internally. */
f592407e 1250 return _bfd_generic_new_section_hook (abfd, newsect);
252b5132
RH		 1251}
1252
b34976b6 1253bfd_boolean
116c20d2
NC		 1254NAME (aout, set_section_contents) (bfd *abfd,
1255 sec_ptr section,
1256 const void * location,
1257 file_ptr offset,
1258 bfd_size_type count)
252b5132 1259{
252b5132
RH		 1260 if (! abfd->output_has_begun)
1261 {
3a8c4a5b 1262 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
b34976b6 1263 return FALSE;
252b5132
RH		 1264 }
1265
1266 if (section == obj_bsssec (abfd))
1267 {
1268 bfd_set_error (bfd_error_no_contents);
b34976b6 1269 return FALSE;
252b5132
RH		 1270 }
1271
1272 if (section != obj_textsec (abfd)
1273 && section != obj_datasec (abfd))
1274 {
e6af3a53
NC		 1275 if (aout_section_merge_with_text_p (abfd, section))
1276 section->filepos = obj_textsec (abfd)->filepos +
1277 (section->vma - obj_textsec (abfd)->vma);
1278 else
1279 {
4eca0228 1280 _bfd_error_handler
695344c0 1281 /* xgettext:c-format */
e6af3a53
NC		 1282 (_("%s: can not represent section `%s' in a.out object file format"),
1283 bfd_get_filename (abfd), bfd_get_section_name (abfd, section));
1284 bfd_set_error (bfd_error_nonrepresentable_section);
1285 return FALSE;
1286 }
252b5132
RH		 1287 }
1288
1289 if (count != 0)
1290 {
1291 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
dc810e39 1292 || bfd_bwrite (location, count, abfd) != count)
b34976b6 1293 return FALSE;
252b5132
RH		 1294 }
1295
b34976b6 1296 return TRUE;
252b5132
RH		 1297}
1298\f
1299/* Read the external symbols from an a.out file. */
1300
b34976b6 1301static bfd_boolean
116c20d2 1302aout_get_external_symbols (bfd *abfd)
252b5132 1303{
116c20d2 1304 if (obj_aout_external_syms (abfd) == NULL)
252b5132
RH		 1305 {
1306 bfd_size_type count;
1307 struct external_nlist *syms;
7c53fd1c 1308 bfd_size_type amt = exec_hdr (abfd)->a_syms;
252b5132 1309
7c53fd1c 1310 count = amt / EXTERNAL_NLIST_SIZE;
6b8f0fd5
MS		 1311 if (count == 0)
1312 return TRUE; /* Nothing to do. */
252b5132
RH		 1313
1314#ifdef USE_MMAP
7c53fd1c 1315 if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd), amt,
b34976b6
AM		 1316 &obj_aout_sym_window (abfd), TRUE))
1317 return FALSE;
252b5132
RH		 1318 syms = (struct external_nlist *) obj_aout_sym_window (abfd).data;
1319#else
1320 /* We allocate using malloc to make the values easy to free
1321 later on. If we put them on the objalloc it might not be
1322 possible to free them. */
7c53fd1c 1323 syms = (struct external_nlist *) bfd_malloc (amt);
6b8f0fd5 1324 if (syms == NULL)
b34976b6 1325 return FALSE;
252b5132 1326
7c53fd1c
AM		 1327 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
1328 || bfd_bread (syms, amt, abfd) != amt)
1329 {
1330 free (syms);
1331 return FALSE;
1332 }
252b5132
RH		 1333#endif
1334
1335 obj_aout_external_syms (abfd) = syms;
1336 obj_aout_external_sym_count (abfd) = count;
1337 }
0ef5a5bd 1338
252b5132
RH		 1339 if (obj_aout_external_strings (abfd) == NULL
1340 && exec_hdr (abfd)->a_syms != 0)
1341 {
1342 unsigned char string_chars[BYTES_IN_WORD];
1343 bfd_size_type stringsize;
1344 char *strings;
dc810e39 1345 bfd_size_type amt = BYTES_IN_WORD;
252b5132
RH		 1346
1347 /* Get the size of the strings. */
1348 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
116c20d2 1349 || bfd_bread ((void *) string_chars, amt, abfd) != amt)
b34976b6 1350 return FALSE;
252b5132
RH		 1351 stringsize = GET_WORD (abfd, string_chars);
1352
1353#ifdef USE_MMAP
82e51918 1354 if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize,
b34976b6
AM		 1355 &obj_aout_string_window (abfd), TRUE))
1356 return FALSE;
252b5132
RH		 1357 strings = (char *) obj_aout_string_window (abfd).data;
1358#else
a50b1753 1359 strings = (char *) bfd_malloc (stringsize + 1);
252b5132 1360 if (strings == NULL)
b34976b6 1361 return FALSE;
252b5132
RH		 1362
1363 /* Skip space for the string count in the buffer for convenience
1364 when using indexes. */
dc810e39
AM		 1365 amt = stringsize - BYTES_IN_WORD;
1366 if (bfd_bread (strings + BYTES_IN_WORD, amt, abfd) != amt)
252b5132
RH		 1367 {
1368 free (strings);
b34976b6 1369 return FALSE;
252b5132
RH		 1370 }
1371#endif
1372
1373 /* Ensure that a zero index yields an empty string. */
1374 strings[0] = '\0';
1375
1376 strings[stringsize - 1] = 0;
1377
1378 obj_aout_external_strings (abfd) = strings;
1379 obj_aout_external_string_size (abfd) = stringsize;
1380 }
1381
b34976b6 1382 return TRUE;
252b5132
RH		 1383}
1384
1385/* Translate an a.out symbol into a BFD symbol. The desc, other, type
1386 and symbol->value fields of CACHE_PTR will be set from the a.out
1387 nlist structure. This function is responsible for setting
1388 symbol->flags and symbol->section, and adjusting symbol->value. */
1389
b34976b6 1390static bfd_boolean
116c20d2 1391translate_from_native_sym_flags (bfd *abfd, aout_symbol_type *cache_ptr)
252b5132
RH		 1392{
1393 flagword visible;
1394
1395 if ((cache_ptr->type & N_STAB) != 0
1396 || cache_ptr->type == N_FN)
1397 {
1398 asection *sec;
1399
1400 /* This is a debugging symbol. */
252b5132
RH		 1401 cache_ptr->symbol.flags = BSF_DEBUGGING;
1402
1403 /* Work out the symbol section. */
1404 switch (cache_ptr->type & N_TYPE)
1405 {
1406 case N_TEXT:
1407 case N_FN:
1408 sec = obj_textsec (abfd);
1409 break;
1410 case N_DATA:
1411 sec = obj_datasec (abfd);
1412 break;
1413 case N_BSS:
1414 sec = obj_bsssec (abfd);
1415 break;
1416 default:
1417 case N_ABS:
1418 sec = bfd_abs_section_ptr;
1419 break;
1420 }
1421
1422 cache_ptr->symbol.section = sec;
1423 cache_ptr->symbol.value -= sec->vma;
1424
b34976b6 1425 return TRUE;
252b5132
RH		 1426 }
1427
1428 /* Get the default visibility. This does not apply to all types, so
1429 we just hold it in a local variable to use if wanted. */
1430 if ((cache_ptr->type & N_EXT) == 0)
1431 visible = BSF_LOCAL;
1432 else
1433 visible = BSF_GLOBAL;
1434
1435 switch (cache_ptr->type)
1436 {
1437 default:
1438 case N_ABS: case N_ABS | N_EXT:
1439 cache_ptr->symbol.section = bfd_abs_section_ptr;
1440 cache_ptr->symbol.flags = visible;
1441 break;
1442
1443 case N_UNDF | N_EXT:
1444 if (cache_ptr->symbol.value != 0)
1445 {
1446 /* This is a common symbol. */
1447 cache_ptr->symbol.flags = BSF_GLOBAL;
1448 cache_ptr->symbol.section = bfd_com_section_ptr;
1449 }
1450 else
1451 {
1452 cache_ptr->symbol.flags = 0;
1453 cache_ptr->symbol.section = bfd_und_section_ptr;
1454 }
1455 break;
1456
1457 case N_TEXT: case N_TEXT | N_EXT:
1458 cache_ptr->symbol.section = obj_textsec (abfd);
1459 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1460 cache_ptr->symbol.flags = visible;
1461 break;
1462
1463 /* N_SETV symbols used to represent set vectors placed in the
1464 data section. They are no longer generated. Theoretically,
1465 it was possible to extract the entries and combine them with
1466 new ones, although I don't know if that was ever actually
1467 done. Unless that feature is restored, treat them as data
1468 symbols. */
1469 case N_SETV: case N_SETV | N_EXT:
1470 case N_DATA: case N_DATA | N_EXT:
1471 cache_ptr->symbol.section = obj_datasec (abfd);
1472 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1473 cache_ptr->symbol.flags = visible;
1474 break;
1475
1476 case N_BSS: case N_BSS | N_EXT:
1477 cache_ptr->symbol.section = obj_bsssec (abfd);
1478 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1479 cache_ptr->symbol.flags = visible;
1480 break;
1481
1482 case N_SETA: case N_SETA | N_EXT:
1483 case N_SETT: case N_SETT | N_EXT:
1484 case N_SETD: case N_SETD | N_EXT:
1485 case N_SETB: case N_SETB | N_EXT:
1486 {
1487 /* This code is no longer needed. It used to be used to make
1488 the linker handle set symbols, but they are now handled in
1489 the add_symbols routine instead. */
252b5132
RH		 1490 switch (cache_ptr->type & N_TYPE)
1491 {
1492 case N_SETA:
1493 cache_ptr->symbol.section = bfd_abs_section_ptr;
1494 break;
1495 case N_SETT:
1496 cache_ptr->symbol.section = obj_textsec (abfd);
1497 break;
1498 case N_SETD:
1499 cache_ptr->symbol.section = obj_datasec (abfd);
1500 break;
1501 case N_SETB:
1502 cache_ptr->symbol.section = obj_bsssec (abfd);
1503 break;
1504 }
1505
1506 cache_ptr->symbol.flags |= BSF_CONSTRUCTOR;
1507 }
1508 break;
1509
1510 case N_WARNING:
1511 /* This symbol is the text of a warning message. The next
1512 symbol is the symbol to associate the warning with. If a
1513 reference is made to that symbol, a warning is issued. */
1514 cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_WARNING;
1515 cache_ptr->symbol.section = bfd_abs_section_ptr;
1516 break;
1517
1518 case N_INDR: case N_INDR | N_EXT:
1519 /* An indirect symbol. This consists of two symbols in a row.
1520 The first symbol is the name of the indirection. The second
1521 symbol is the name of the target. A reference to the first
1522 symbol becomes a reference to the second. */
1523 cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_INDIRECT | visible;
1524 cache_ptr->symbol.section = bfd_ind_section_ptr;
1525 break;
1526
1527 case N_WEAKU:
1528 cache_ptr->symbol.section = bfd_und_section_ptr;
1529 cache_ptr->symbol.flags = BSF_WEAK;
1530 break;
1531
1532 case N_WEAKA:
1533 cache_ptr->symbol.section = bfd_abs_section_ptr;
1534 cache_ptr->symbol.flags = BSF_WEAK;
1535 break;
1536
1537 case N_WEAKT:
1538 cache_ptr->symbol.section = obj_textsec (abfd);
1539 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1540 cache_ptr->symbol.flags = BSF_WEAK;
1541 break;
1542
1543 case N_WEAKD:
1544 cache_ptr->symbol.section = obj_datasec (abfd);
1545 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1546 cache_ptr->symbol.flags = BSF_WEAK;
1547 break;
1548
1549 case N_WEAKB:
1550 cache_ptr->symbol.section = obj_bsssec (abfd);
1551 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1552 cache_ptr->symbol.flags = BSF_WEAK;
1553 break;
1554 }
1555
b34976b6 1556 return TRUE;
252b5132
RH		 1557}
1558
1559/* Set the fields of SYM_POINTER according to CACHE_PTR. */
1560
b34976b6 1561static bfd_boolean
116c20d2
NC		 1562translate_to_native_sym_flags (bfd *abfd,
1563 asymbol *cache_ptr,
1564 struct external_nlist *sym_pointer)
252b5132
RH		 1565{
1566 bfd_vma value = cache_ptr->value;
1567 asection *sec;
1568 bfd_vma off;
1569
1570 /* Mask out any existing type bits in case copying from one section
1571 to another. */
1572 sym_pointer->e_type[0] &= ~N_TYPE;
1573
1574 sec = bfd_get_section (cache_ptr);
1575 off = 0;
1576
1577 if (sec == NULL)
1578 {
1579 /* This case occurs, e.g., for the *DEBUG* section of a COFF
1580 file. */
4eca0228 1581 _bfd_error_handler
695344c0 1582 /* xgettext:c-format */
4eca0228
AM		 1583 (_("%s: can not represent section for symbol `%s' in a.out "
1584 "object file format"),
0ef5a5bd 1585 bfd_get_filename (abfd),
252b5132
RH		 1586 cache_ptr->name != NULL ? cache_ptr->name : _("*unknown*"));
1587 bfd_set_error (bfd_error_nonrepresentable_section);
b34976b6 1588 return FALSE;
252b5132
RH		 1589 }
1590
1591 if (sec->output_section != NULL)
1592 {
1593 off = sec->output_offset;
1594 sec = sec->output_section;
1595 }
1596
1597 if (bfd_is_abs_section (sec))
1598 sym_pointer->e_type[0] |= N_ABS;
1599 else if (sec == obj_textsec (abfd))
1600 sym_pointer->e_type[0] |= N_TEXT;
1601 else if (sec == obj_datasec (abfd))
1602 sym_pointer->e_type[0] |= N_DATA;
1603 else if (sec == obj_bsssec (abfd))
1604 sym_pointer->e_type[0] |= N_BSS;
1605 else if (bfd_is_und_section (sec))
1606 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1607 else if (bfd_is_ind_section (sec))
1608 sym_pointer->e_type[0] = N_INDR;
1609 else if (bfd_is_com_section (sec))
1610 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1611 else
1612 {
e6af3a53
NC		 1613 if (aout_section_merge_with_text_p (abfd, sec))
1614 sym_pointer->e_type[0] |= N_TEXT;
1615 else
1616 {
4eca0228 1617 _bfd_error_handler
695344c0 1618 /* xgettext:c-format */
e6af3a53
NC		 1619 (_("%s: can not represent section `%s' in a.out object file format"),
1620 bfd_get_filename (abfd), bfd_get_section_name (abfd, sec));
1621 bfd_set_error (bfd_error_nonrepresentable_section);
1622 return FALSE;
1623 }
252b5132
RH		 1624 }
1625
f7c33884 1626 /* Turn the symbol from section relative to absolute again. */
252b5132
RH		 1627 value += sec->vma + off;
1628
1629 if ((cache_ptr->flags & BSF_WARNING) != 0)
1630 sym_pointer->e_type[0] = N_WARNING;
1631
1632 if ((cache_ptr->flags & BSF_DEBUGGING) != 0)
1633 sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type;
1634 else if ((cache_ptr->flags & BSF_GLOBAL) != 0)
1635 sym_pointer->e_type[0] |= N_EXT;
930d924d
L		 1636 else if ((cache_ptr->flags & BSF_LOCAL) != 0)
1637 sym_pointer->e_type[0] &= ~N_EXT;
252b5132
RH		 1638
1639 if ((cache_ptr->flags & BSF_CONSTRUCTOR) != 0)
1640 {
1641 int type = ((aout_symbol_type *) cache_ptr)->type;
f7c33884 1642
252b5132
RH		 1643 switch (type)
1644 {
1645 case N_ABS: type = N_SETA; break;
1646 case N_TEXT: type = N_SETT; break;
1647 case N_DATA: type = N_SETD; break;
1648 case N_BSS: type = N_SETB; break;
1649 }
1650 sym_pointer->e_type[0] = type;
1651 }
1652
1653 if ((cache_ptr->flags & BSF_WEAK) != 0)
1654 {
1655 int type;
1656
1657 switch (sym_pointer->e_type[0] & N_TYPE)
1658 {
1659 default:
1660 case N_ABS: type = N_WEAKA; break;
1661 case N_TEXT: type = N_WEAKT; break;
1662 case N_DATA: type = N_WEAKD; break;
1663 case N_BSS: type = N_WEAKB; break;
1664 case N_UNDF: type = N_WEAKU; break;
1665 }
1666 sym_pointer->e_type[0] = type;
1667 }
1668
923f08ff 1669 PUT_WORD (abfd, value, sym_pointer->e_value);
252b5132 1670
b34976b6 1671 return TRUE;
252b5132
RH		 1672}
1673\f
0ef5a5bd 1674/* Native-level interface to symbols. */
252b5132
RH		 1675
1676asymbol *
116c20d2 1677NAME (aout, make_empty_symbol) (bfd *abfd)
252b5132 1678{
dc810e39 1679 bfd_size_type amt = sizeof (aout_symbol_type);
116c20d2 1680
d3ce72d0
NC		 1681 aout_symbol_type *new_symbol = (aout_symbol_type *) bfd_zalloc (abfd, amt);
1682 if (!new_symbol)
252b5132 1683 return NULL;
d3ce72d0 1684 new_symbol->symbol.the_bfd = abfd;
252b5132 1685
d3ce72d0 1686 return &new_symbol->symbol;
252b5132
RH		 1687}
1688
1689/* Translate a set of internal symbols into external symbols. */
1690
b34976b6 1691bfd_boolean
116c20d2
NC		 1692NAME (aout, translate_symbol_table) (bfd *abfd,
1693 aout_symbol_type *in,
1694 struct external_nlist *ext,
1695 bfd_size_type count,
1696 char *str,
1697 bfd_size_type strsize,
1698 bfd_boolean dynamic)
252b5132
RH		 1699{
1700 struct external_nlist *ext_end;
1701
1702 ext_end = ext + count;
1703 for (; ext < ext_end; ext++, in++)
1704 {
1705 bfd_vma x;
1706
1707 x = GET_WORD (abfd, ext->e_strx);
1708 in->symbol.the_bfd = abfd;
1709
1710 /* For the normal symbols, the zero index points at the number
1711 of bytes in the string table but is to be interpreted as the
1712 null string. For the dynamic symbols, the number of bytes in
1713 the string table is stored in the __DYNAMIC structure and the
1714 zero index points at an actual string. */
1715 if (x == 0 && ! dynamic)
1716 in->symbol.name = "";
1717 else if (x < strsize)
1718 in->symbol.name = str + x;
1719 else
b34976b6 1720 return FALSE;
252b5132
RH		 1721
1722 in->symbol.value = GET_SWORD (abfd, ext->e_value);
dc810e39
AM		 1723 in->desc = H_GET_16 (abfd, ext->e_desc);
1724 in->other = H_GET_8 (abfd, ext->e_other);
1725 in->type = H_GET_8 (abfd, ext->e_type);
252b5132
RH		 1726 in->symbol.udata.p = NULL;
1727
1728 if (! translate_from_native_sym_flags (abfd, in))
b34976b6 1729 return FALSE;
252b5132
RH		 1730
1731 if (dynamic)
1732 in->symbol.flags |= BSF_DYNAMIC;
1733 }
1734
b34976b6 1735 return TRUE;
252b5132
RH		 1736}
1737
1738/* We read the symbols into a buffer, which is discarded when this
1739 function exits. We read the strings into a buffer large enough to
0ef5a5bd 1740 hold them all plus all the cached symbol entries. */
252b5132 1741
b34976b6 1742bfd_boolean
116c20d2 1743NAME (aout, slurp_symbol_table) (bfd *abfd)
252b5132
RH		 1744{
1745 struct external_nlist *old_external_syms;
1746 aout_symbol_type *cached;
dc810e39 1747 bfd_size_type cached_size;
252b5132 1748
f7c33884 1749 /* If there's no work to be done, don't do any. */
116c20d2 1750 if (obj_aout_symbols (abfd) != NULL)
b34976b6 1751 return TRUE;
252b5132
RH		 1752
1753 old_external_syms = obj_aout_external_syms (abfd);
1754
1755 if (! aout_get_external_symbols (abfd))
b34976b6 1756 return FALSE;
252b5132 1757
dc810e39 1758 cached_size = obj_aout_external_sym_count (abfd);
87b32780
MS		 1759 if (cached_size == 0)
1760 return TRUE; /* Nothing to do. */
1761
dc810e39 1762 cached_size *= sizeof (aout_symbol_type);
a50b1753 1763 cached = (aout_symbol_type *) bfd_zmalloc (cached_size);
87b32780 1764 if (cached == NULL)
b34976b6 1765 return FALSE;
252b5132
RH		 1766
1767 /* Convert from external symbol information to internal. */
116c20d2 1768 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 1769 (abfd, cached,
1770 obj_aout_external_syms (abfd),
1771 obj_aout_external_sym_count (abfd),
1772 obj_aout_external_strings (abfd),
1773 obj_aout_external_string_size (abfd),
b34976b6 1774 FALSE)))
252b5132
RH		 1775 {
1776 free (cached);
b34976b6 1777 return FALSE;
252b5132
RH		 1778 }
1779
1780 bfd_get_symcount (abfd) = obj_aout_external_sym_count (abfd);
1781
1782 obj_aout_symbols (abfd) = cached;
1783
1784 /* It is very likely that anybody who calls this function will not
1785 want the external symbol information, so if it was allocated
1786 because of our call to aout_get_external_symbols, we free it up
1787 right away to save space. */
116c20d2
NC		 1788 if (old_external_syms == NULL
1789 && obj_aout_external_syms (abfd) != NULL)
252b5132
RH		 1790 {
1791#ifdef USE_MMAP
1792 bfd_free_window (&obj_aout_sym_window (abfd));
1793#else
1794 free (obj_aout_external_syms (abfd));
1795#endif
1796 obj_aout_external_syms (abfd) = NULL;
1797 }
1798
b34976b6 1799 return TRUE;
252b5132
RH		 1800}
1801\f
1802/* We use a hash table when writing out symbols so that we only write
1803 out a particular string once. This helps particularly when the
1804 linker writes out stabs debugging entries, because each different
1805 contributing object file tends to have many duplicate stabs
1806 strings.
1807
1808 This hash table code breaks dbx on SunOS 4.1.3, so we don't do it
1809 if BFD_TRADITIONAL_FORMAT is set. */
1810
252b5132
RH		 1811/* Get the index of a string in a strtab, adding it if it is not
1812 already present. */
1813
116c20d2
NC		 1814static inline bfd_size_type
1815add_to_stringtab (bfd *abfd,
1816 struct bfd_strtab_hash *tab,
1817 const char *str,
1818 bfd_boolean copy)
252b5132 1819{
b34976b6 1820 bfd_boolean hash;
91d6fa6a 1821 bfd_size_type str_index;
252b5132
RH		 1822
1823 /* An index of 0 always means the empty string. */
1824 if (str == 0 || *str == '\0')
1825 return 0;
1826
1827 /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx
1828 doesn't understand a hashed string table. */
b34976b6 1829 hash = TRUE;
252b5132 1830 if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
b34976b6 1831 hash = FALSE;
252b5132 1832
91d6fa6a 1833 str_index = _bfd_stringtab_add (tab, str, hash, copy);
252b5132 1834
91d6fa6a 1835 if (str_index != (bfd_size_type) -1)
116c20d2
NC		 1836 /* Add BYTES_IN_WORD to the return value to account for the
1837 space taken up by the string table size. */
91d6fa6a 1838 str_index += BYTES_IN_WORD;
252b5132 1839
91d6fa6a 1840 return str_index;
252b5132
RH		 1841}
1842
1843/* Write out a strtab. ABFD is already at the right location in the
1844 file. */
1845
b34976b6 1846static bfd_boolean
116c20d2 1847emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab)
252b5132
RH		 1848{
1849 bfd_byte buffer[BYTES_IN_WORD];
dc810e39 1850 bfd_size_type amt = BYTES_IN_WORD;
252b5132
RH		 1851
1852 /* The string table starts with the size. */
1853 PUT_WORD (abfd, _bfd_stringtab_size (tab) + BYTES_IN_WORD, buffer);
116c20d2 1854 if (bfd_bwrite ((void *) buffer, amt, abfd) != amt)
b34976b6 1855 return FALSE;
252b5132
RH		 1856
1857 return _bfd_stringtab_emit (abfd, tab);
1858}
1859\f
b34976b6 1860bfd_boolean
116c20d2 1861NAME (aout, write_syms) (bfd *abfd)
252b5132
RH		 1862{
1863 unsigned int count ;
1864 asymbol **generic = bfd_get_outsymbols (abfd);
1865 struct bfd_strtab_hash *strtab;
1866
1867 strtab = _bfd_stringtab_init ();
1868 if (strtab == NULL)
b34976b6 1869 return FALSE;
252b5132
RH		 1870
1871 for (count = 0; count < bfd_get_symcount (abfd); count++)
1872 {
1873 asymbol *g = generic[count];
1874 bfd_size_type indx;
1875 struct external_nlist nsp;
dc810e39 1876 bfd_size_type amt;
252b5132 1877
b34976b6 1878 indx = add_to_stringtab (abfd, strtab, g->name, FALSE);
252b5132
RH		 1879 if (indx == (bfd_size_type) -1)
1880 goto error_return;
1881 PUT_WORD (abfd, indx, (bfd_byte *) nsp.e_strx);
1882
923f08ff 1883 if (bfd_asymbol_flavour (g) == abfd->xvec->flavour)
252b5132 1884 {
923f08ff
AM		 1885 H_PUT_16 (abfd, aout_symbol (g)->desc, nsp.e_desc);
1886 H_PUT_8 (abfd, aout_symbol (g)->other, nsp.e_other);
1887 H_PUT_8 (abfd, aout_symbol (g)->type, nsp.e_type);
252b5132
RH		 1888 }
1889 else
1890 {
dc810e39
AM		 1891 H_PUT_16 (abfd, 0, nsp.e_desc);
1892 H_PUT_8 (abfd, 0, nsp.e_other);
1893 H_PUT_8 (abfd, 0, nsp.e_type);
252b5132
RH		 1894 }
1895
1896 if (! translate_to_native_sym_flags (abfd, g, &nsp))
1897 goto error_return;
1898
dc810e39 1899 amt = EXTERNAL_NLIST_SIZE;
116c20d2 1900 if (bfd_bwrite ((void *) &nsp, amt, abfd) != amt)
252b5132
RH		 1901 goto error_return;
1902
1903 /* NB: `KEEPIT' currently overlays `udata.p', so set this only
1904 here, at the end. */
1905 g->KEEPIT = count;
1906 }
1907
1908 if (! emit_stringtab (abfd, strtab))
1909 goto error_return;
1910
1911 _bfd_stringtab_free (strtab);
1912
b34976b6 1913 return TRUE;
252b5132
RH		 1914
1915error_return:
1916 _bfd_stringtab_free (strtab);
b34976b6 1917 return FALSE;
252b5132 1918}
252b5132
RH		 1919\f
1920long
116c20d2 1921NAME (aout, canonicalize_symtab) (bfd *abfd, asymbol **location)
252b5132 1922{
116c20d2
NC		 1923 unsigned int counter = 0;
1924 aout_symbol_type *symbase;
252b5132 1925
116c20d2
NC		 1926 if (!NAME (aout, slurp_symbol_table) (abfd))
1927 return -1;
252b5132 1928
116c20d2
NC		 1929 for (symbase = obj_aout_symbols (abfd);
1930 counter++ < bfd_get_symcount (abfd);
1931 )
1932 *(location++) = (asymbol *) (symbase++);
1933 *location++ =0;
1934 return bfd_get_symcount (abfd);
252b5132 1935}
252b5132 1936\f
f7c33884 1937/* Standard reloc stuff. */
0ef5a5bd 1938/* Output standard relocation information to a file in target byte order. */
252b5132 1939
116c20d2
NC		 1940extern void NAME (aout, swap_std_reloc_out)
1941 (bfd *, arelent *, struct reloc_std_external *);
252b5132
RH		 1942
1943void
116c20d2
NC		 1944NAME (aout, swap_std_reloc_out) (bfd *abfd,
1945 arelent *g,
1946 struct reloc_std_external *natptr)
252b5132
RH		 1947{
1948 int r_index;
1949 asymbol *sym = *(g->sym_ptr_ptr);
1950 int r_extern;
1951 unsigned int r_length;
1952 int r_pcrel;
1953 int r_baserel, r_jmptable, r_relative;
1954 asection *output_section = sym->section->output_section;
1955
923f08ff 1956 PUT_WORD (abfd, g->address, natptr->r_address);
252b5132 1957
e2996cc3 1958 BFD_ASSERT (g->howto != NULL);
f7c33884
NC		 1959 r_length = g->howto->size ; /* Size as a power of two. */
1960 r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */
252b5132
RH		 1961 /* XXX This relies on relocs coming from a.out files. */
1962 r_baserel = (g->howto->type & 8) != 0;
1963 r_jmptable = (g->howto->type & 16) != 0;
1964 r_relative = (g->howto->type & 32) != 0;
1965
f7c33884 1966 /* Name was clobbered by aout_write_syms to be symbol index. */
252b5132
RH		 1967
1968 /* If this relocation is relative to a symbol then set the
1969 r_index to the symbols index, and the r_extern bit.
1970
1971 Absolute symbols can come in in two ways, either as an offset
1972 from the abs section, or as a symbol which has an abs value.
f7c33884 1973 check for that here. */
252b5132 1974
252b5132
RH		 1975 if (bfd_is_com_section (output_section)
1976 || bfd_is_abs_section (output_section)
22184a77
NC		 1977 || bfd_is_und_section (output_section)
1978 /* PR gas/3041 a.out relocs against weak symbols
1979 must be treated as if they were against externs. */
1980 || (sym->flags & BSF_WEAK))
252b5132
RH		 1981 {
1982 if (bfd_abs_section_ptr->symbol == sym)
f7c33884
NC		 1983 {
1984 /* Whoops, looked like an abs symbol, but is
1985 really an offset from the abs section. */
1986 r_index = N_ABS;
1987 r_extern = 0;
1988 }
252b5132 1989 else
f7c33884
NC		 1990 {
1991 /* Fill in symbol. */
1992 r_extern = 1;
1993 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
1994 }
252b5132
RH		 1995 }
1996 else
1997 {
f7c33884 1998 /* Just an ordinary section. */
252b5132
RH		 1999 r_extern = 0;
2000 r_index = output_section->target_index;
2001 }
2002
f7c33884 2003 /* Now the fun stuff. */
923f08ff
AM		 2004 if (bfd_header_big_endian (abfd))
2005 {
252b5132
RH		 2006 natptr->r_index[0] = r_index >> 16;
2007 natptr->r_index[1] = r_index >> 8;
2008 natptr->r_index[2] = r_index;
923f08ff
AM		 2009 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
2010 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
2011 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
2012 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
2013 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
2014 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
2015 }
2016 else
2017 {
2018 natptr->r_index[2] = r_index >> 16;
2019 natptr->r_index[1] = r_index >> 8;
2020 natptr->r_index[0] = r_index;
2021 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
2022 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
2023 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
2024 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
2025 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
2026 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
2027 }
252b5132
RH		 2028}
2029
f7c33884 2030/* Extended stuff. */
0ef5a5bd 2031/* Output extended relocation information to a file in target byte order. */
252b5132 2032
116c20d2
NC		 2033extern void NAME (aout, swap_ext_reloc_out)
2034 (bfd *, arelent *, struct reloc_ext_external *);
252b5132
RH		 2035
2036void
116c20d2
NC		 2037NAME (aout, swap_ext_reloc_out) (bfd *abfd,
2038 arelent *g,
2039 struct reloc_ext_external *natptr)
252b5132
RH		 2040{
2041 int r_index;
2042 int r_extern;
2043 unsigned int r_type;
dc810e39 2044 bfd_vma r_addend;
252b5132
RH		 2045 asymbol *sym = *(g->sym_ptr_ptr);
2046 asection *output_section = sym->section->output_section;
2047
2048 PUT_WORD (abfd, g->address, natptr->r_address);
2049
2050 r_type = (unsigned int) g->howto->type;
2051
2052 r_addend = g->addend;
2053 if ((sym->flags & BSF_SECTION_SYM) != 0)
2054 r_addend += (*(g->sym_ptr_ptr))->section->output_section->vma;
2055
2056 /* If this relocation is relative to a symbol then set the
2057 r_index to the symbols index, and the r_extern bit.
2058
2059 Absolute symbols can come in in two ways, either as an offset
2060 from the abs section, or as a symbol which has an abs value.
2061 check for that here. */
252b5132
RH		 2062 if (bfd_is_abs_section (bfd_get_section (sym)))
2063 {
2064 r_extern = 0;
2065 r_index = N_ABS;
2066 }
2067 else if ((sym->flags & BSF_SECTION_SYM) == 0)
2068 {
2069 if (bfd_is_und_section (bfd_get_section (sym))
2070 || (sym->flags & BSF_GLOBAL) != 0)
2071 r_extern = 1;
2072 else
2073 r_extern = 0;
2074 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
2075 }
2076 else
2077 {
f7c33884 2078 /* Just an ordinary section. */
252b5132
RH		 2079 r_extern = 0;
2080 r_index = output_section->target_index;
2081 }
2082
f7c33884 2083 /* Now the fun stuff. */
923f08ff
AM		 2084 if (bfd_header_big_endian (abfd))
2085 {
2086 natptr->r_index[0] = r_index >> 16;
2087 natptr->r_index[1] = r_index >> 8;
2088 natptr->r_index[2] = r_index;
2089 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
2090 | (r_type << RELOC_EXT_BITS_TYPE_SH_BIG));
2091 }
2092 else
2093 {
2094 natptr->r_index[2] = r_index >> 16;
2095 natptr->r_index[1] = r_index >> 8;
2096 natptr->r_index[0] = r_index;
2097 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
2098 | (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE));
2099 }
252b5132
RH		 2100
2101 PUT_WORD (abfd, r_addend, natptr->r_addend);
2102}
2103
2104/* BFD deals internally with all things based from the section they're
2105 in. so, something in 10 bytes into a text section with a base of
2106 50 would have a symbol (.text+10) and know .text vma was 50.
2107
2108 Aout keeps all it's symbols based from zero, so the symbol would
2109 contain 60. This macro subs the base of each section from the value
923f08ff
AM		 2110 to give the true offset from the section. */
2111
2112#define MOVE_ADDRESS(ad) \
2113 if (r_extern) \
2114 { \
2115 /* Undefined symbol. */ \
2116 cache_ptr->sym_ptr_ptr = symbols + r_index; \
252b5132 2117 cache_ptr->addend = ad; \
252b5132 2118 } \
923f08ff
AM		 2119 else \
2120 { \
2121 /* Defined, section relative. Replace symbol with pointer to \
2122 symbol which points to section. */ \
2123 switch (r_index) \
2124 { \
2125 case N_TEXT: \
2126 case N_TEXT | N_EXT: \
2127 cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \
2128 cache_ptr->addend = ad - su->textsec->vma; \
2129 break; \
2130 case N_DATA: \
2131 case N_DATA | N_EXT: \
2132 cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \
2133 cache_ptr->addend = ad - su->datasec->vma; \
2134 break; \
2135 case N_BSS: \
2136 case N_BSS | N_EXT: \
2137 cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \
2138 cache_ptr->addend = ad - su->bsssec->vma; \
2139 break; \
2140 default: \
2141 case N_ABS: \
2142 case N_ABS | N_EXT: \
2143 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
2144 cache_ptr->addend = ad; \
2145 break; \
2146 } \
2147 }
252b5132
RH		 2148
2149void
116c20d2
NC		 2150NAME (aout, swap_ext_reloc_in) (bfd *abfd,
2151 struct reloc_ext_external *bytes,
2152 arelent *cache_ptr,
2153 asymbol **symbols,
2154 bfd_size_type symcount)
252b5132
RH		 2155{
2156 unsigned int r_index;
2157 int r_extern;
2158 unsigned int r_type;
2159 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2160
2161 cache_ptr->address = (GET_SWORD (abfd, bytes->r_address));
2162
f7c33884 2163 /* Now the fun stuff. */
923f08ff
AM		 2164 if (bfd_header_big_endian (abfd))
2165 {
d45913a0
DA		 2166 r_index = (((unsigned int) bytes->r_index[0] << 16)
2167 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2168 | bytes->r_index[2]);
2169 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
2170 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
2171 >> RELOC_EXT_BITS_TYPE_SH_BIG);
2172 }
2173 else
2174 {
d45913a0
DA		 2175 r_index = (((unsigned int) bytes->r_index[2] << 16)
2176 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2177 | bytes->r_index[0]);
2178 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
2179 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
2180 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
2181 }
252b5132 2182
ad756e3f
AM		 2183 if (r_type < TABLE_SIZE (howto_table_ext))
2184 cache_ptr->howto = howto_table_ext + r_type;
2185 else
2186 cache_ptr->howto = NULL;
252b5132
RH		 2187
2188 /* Base relative relocs are always against the symbol table,
2189 regardless of the setting of r_extern. r_extern just reflects
2190 whether the symbol the reloc is against is local or global. */
d45913a0
DA		 2191 if (r_type == (unsigned int) RELOC_BASE10
2192 || r_type == (unsigned int) RELOC_BASE13
2193 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 2194 r_extern = 1;
2195
2196 if (r_extern && r_index > symcount)
2197 {
2198 /* We could arrange to return an error, but it might be useful
2199 to see the file even if it is bad. */
2200 r_extern = 0;
2201 r_index = N_ABS;
2202 }
2203
923f08ff 2204 MOVE_ADDRESS (GET_SWORD (abfd, bytes->r_addend));
252b5132
RH		 2205}
2206
2207void
116c20d2
NC		 2208NAME (aout, swap_std_reloc_in) (bfd *abfd,
2209 struct reloc_std_external *bytes,
2210 arelent *cache_ptr,
2211 asymbol **symbols,
2212 bfd_size_type symcount)
252b5132
RH		 2213{
2214 unsigned int r_index;
2215 int r_extern;
2216 unsigned int r_length;
2217 int r_pcrel;
2218 int r_baserel, r_jmptable, r_relative;
2219 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2220 unsigned int howto_idx;
2221
dc810e39 2222 cache_ptr->address = H_GET_32 (abfd, bytes->r_address);
252b5132 2223
f7c33884 2224 /* Now the fun stuff. */
923f08ff
AM		 2225 if (bfd_header_big_endian (abfd))
2226 {
d45913a0
DA		 2227 r_index = (((unsigned int) bytes->r_index[0] << 16)
2228 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2229 | bytes->r_index[2]);
2230 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
2231 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
2232 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
2233 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
2234 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
2235 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
2236 >> RELOC_STD_BITS_LENGTH_SH_BIG);
2237 }
2238 else
2239 {
d45913a0
DA		 2240 r_index = (((unsigned int) bytes->r_index[2] << 16)
2241 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2242 | bytes->r_index[0]);
2243 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
2244 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
2245 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE));
2246 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE));
2247 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_LITTLE));
2248 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
2249 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
2250 }
252b5132 2251
923f08ff
AM		 2252 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
2253 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 2254 if (howto_idx < TABLE_SIZE (howto_table_std))
2255 {
2256 cache_ptr->howto = howto_table_std + howto_idx;
2257 if (cache_ptr->howto->type == (unsigned int) -1)
2258 cache_ptr->howto = NULL;
2259 }
2260 else
2261 cache_ptr->howto = NULL;
252b5132
RH		 2262
2263 /* Base relative relocs are always against the symbol table,
2264 regardless of the setting of r_extern. r_extern just reflects
2265 whether the symbol the reloc is against is local or global. */
2266 if (r_baserel)
2267 r_extern = 1;
2268
2269 if (r_extern && r_index > symcount)
2270 {
2271 /* We could arrange to return an error, but it might be useful
2272 to see the file even if it is bad. */
2273 r_extern = 0;
2274 r_index = N_ABS;
2275 }
2276
923f08ff 2277 MOVE_ADDRESS (0);
252b5132
RH		 2278}
2279
2280/* Read and swap the relocs for a section. */
2281
b34976b6 2282bfd_boolean
116c20d2 2283NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols)
252b5132 2284{
dc810e39 2285 bfd_size_type count;
252b5132 2286 bfd_size_type reloc_size;
116c20d2 2287 void * relocs;
252b5132
RH		 2288 arelent *reloc_cache;
2289 size_t each_size;
2290 unsigned int counter = 0;
2291 arelent *cache_ptr;
dc810e39 2292 bfd_size_type amt;
252b5132
RH		 2293
2294 if (asect->relocation)
b34976b6 2295 return TRUE;
252b5132
RH		 2296
2297 if (asect->flags & SEC_CONSTRUCTOR)
b34976b6 2298 return TRUE;
252b5132
RH		 2299
2300 if (asect == obj_datasec (abfd))
923f08ff 2301 reloc_size = exec_hdr (abfd)->a_drsize;
252b5132 2302 else if (asect == obj_textsec (abfd))
923f08ff 2303 reloc_size = exec_hdr (abfd)->a_trsize;
252b5132
RH		 2304 else if (asect == obj_bsssec (abfd))
2305 reloc_size = 0;
2306 else
2307 {
2308 bfd_set_error (bfd_error_invalid_operation);
b34976b6 2309 return FALSE;
252b5132
RH		 2310 }
2311
078c4bfc
MS		 2312 if (reloc_size == 0)
2313 return TRUE; /* Nothing to be done. */
2314
252b5132 2315 if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
b34976b6 2316 return FALSE;
252b5132
RH		 2317
2318 each_size = obj_reloc_entry_size (abfd);
2319
2320 count = reloc_size / each_size;
078c4bfc
MS		 2321 if (count == 0)
2322 return TRUE; /* Nothing to be done. */
252b5132 2323
dc810e39 2324 amt = count * sizeof (arelent);
a50b1753 2325 reloc_cache = (arelent *) bfd_zmalloc (amt);
078c4bfc 2326 if (reloc_cache == NULL)
b34976b6 2327 return FALSE;
252b5132 2328
dc810e39 2329 relocs = bfd_malloc (reloc_size);
078c4bfc 2330 if (relocs == NULL)
252b5132
RH		 2331 {
2332 free (reloc_cache);
b34976b6 2333 return FALSE;
252b5132
RH		 2334 }
2335
dc810e39 2336 if (bfd_bread (relocs, reloc_size, abfd) != reloc_size)
252b5132
RH		 2337 {
2338 free (relocs);
2339 free (reloc_cache);
b34976b6 2340 return FALSE;
252b5132
RH		 2341 }
2342
2343 cache_ptr = reloc_cache;
2344 if (each_size == RELOC_EXT_SIZE)
2345 {
dc810e39 2346 struct reloc_ext_external *rptr = (struct reloc_ext_external *) relocs;
252b5132
RH		 2347
2348 for (; counter < count; counter++, rptr++, cache_ptr++)
1642229e 2349 MY_swap_ext_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2350 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2351 }
2352 else
2353 {
dc810e39 2354 struct reloc_std_external *rptr = (struct reloc_std_external *) relocs;
252b5132
RH		 2355
2356 for (; counter < count; counter++, rptr++, cache_ptr++)
2357 MY_swap_std_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2358 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2359 }
2360
2361 free (relocs);
2362
2363 asect->relocation = reloc_cache;
2364 asect->reloc_count = cache_ptr - reloc_cache;
2365
b34976b6 2366 return TRUE;
252b5132
RH		 2367}
2368
2369/* Write out a relocation section into an object file. */
2370
b34976b6 2371bfd_boolean
116c20d2 2372NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section)
252b5132
RH		 2373{
2374 arelent **generic;
2375 unsigned char *native, *natptr;
2376 size_t each_size;
2377
2378 unsigned int count = section->reloc_count;
dc810e39 2379 bfd_size_type natsize;
252b5132
RH		 2380
2381 if (count == 0 || section->orelocation == NULL)
b34976b6 2382 return TRUE;
252b5132
RH		 2383
2384 each_size = obj_reloc_entry_size (abfd);
dc810e39 2385 natsize = (bfd_size_type) each_size * count;
a50b1753 2386 native = (unsigned char *) bfd_zalloc (abfd, natsize);
252b5132 2387 if (!native)
b34976b6 2388 return FALSE;
252b5132
RH		 2389
2390 generic = section->orelocation;
2391
2392 if (each_size == RELOC_EXT_SIZE)
2393 {
2394 for (natptr = native;
2395 count != 0;
2396 --count, natptr += each_size, ++generic)
e2996cc3 2397 {
92744f05
NC		 2398 /* PR 20921: If the howto field has not been initialised then skip
2399 this reloc.
2400 PR 20929: Similarly for the symbol field. */
2401 if ((*generic)->howto == NULL
2402 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2403 {
2404 bfd_set_error (bfd_error_invalid_operation);
92744f05
NC		 2405 _bfd_error_handler (_("\
2406%B: attempt to write out unknown reloc type"), abfd);
e2996cc3
NC		 2407 return FALSE;
2408 }
2409 MY_swap_ext_reloc_out (abfd, *generic,
2410 (struct reloc_ext_external *) natptr);
2411 }
252b5132
RH		 2412 }
2413 else
2414 {
2415 for (natptr = native;
2416 count != 0;
2417 --count, natptr += each_size, ++generic)
e2996cc3 2418 {
92744f05
NC		 2419 if ((*generic)->howto == NULL
2420 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2421 {
2422 bfd_set_error (bfd_error_invalid_operation);
92744f05
NC		 2423 _bfd_error_handler (_("\
2424%B: attempt to write out unknown reloc type"), abfd);
e2996cc3
NC		 2425 return FALSE;
2426 }
2427 MY_swap_std_reloc_out (abfd, *generic,
2428 (struct reloc_std_external *) natptr);
2429 }
252b5132
RH		 2430 }
2431
116c20d2 2432 if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
dc810e39 2433 {
923f08ff 2434 bfd_release (abfd, native);
b34976b6 2435 return FALSE;
dc810e39 2436 }
252b5132
RH		 2437 bfd_release (abfd, native);
2438
b34976b6 2439 return TRUE;
252b5132
RH		 2440}
2441
f7c33884
NC		 2442/* This is stupid. This function should be a boolean predicate. */
2443
252b5132 2444long
116c20d2
NC		 2445NAME (aout, canonicalize_reloc) (bfd *abfd,
2446 sec_ptr section,
2447 arelent **relptr,
2448 asymbol **symbols)
252b5132
RH		 2449{
2450 arelent *tblptr = section->relocation;
2451 unsigned int count;
2452
2453 if (section == obj_bsssec (abfd))
2454 {
2455 *relptr = NULL;
2456 return 0;
2457 }
2458
116c20d2 2459 if (!(tblptr || NAME (aout, slurp_reloc_table) (abfd, section, symbols)))
252b5132
RH		 2460 return -1;
2461
923f08ff
AM		 2462 if (section->flags & SEC_CONSTRUCTOR)
2463 {
2464 arelent_chain *chain = section->constructor_chain;
2465 for (count = 0; count < section->reloc_count; count ++)
2466 {
2467 *relptr ++ = &chain->relent;
2468 chain = chain->next;
2469 }
252b5132 2470 }
923f08ff
AM		 2471 else
2472 {
2473 tblptr = section->relocation;
252b5132 2474
923f08ff
AM		 2475 for (count = 0; count++ < section->reloc_count; )
2476 {
2477 *relptr++ = tblptr++;
2478 }
2479 }
252b5132
RH		 2480 *relptr = 0;
2481
2482 return section->reloc_count;
2483}
2484
2485long
116c20d2 2486NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect)
252b5132 2487{
923f08ff
AM		 2488 if (bfd_get_format (abfd) != bfd_object)
2489 {
2490 bfd_set_error (bfd_error_invalid_operation);
2491 return -1;
2492 }
f7c33884 2493
923f08ff 2494 if (asect->flags & SEC_CONSTRUCTOR)
116c20d2 2495 return sizeof (arelent *) * (asect->reloc_count + 1);
252b5132
RH		 2496
2497 if (asect == obj_datasec (abfd))
116c20d2
NC		 2498 return sizeof (arelent *)
2499 * ((exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd))
2500 + 1);
252b5132
RH		 2501
2502 if (asect == obj_textsec (abfd))
116c20d2
NC		 2503 return sizeof (arelent *)
2504 * ((exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd))
2505 + 1);
252b5132
RH		 2506
2507 if (asect == obj_bsssec (abfd))
2508 return sizeof (arelent *);
2509
2510 if (asect == obj_bsssec (abfd))
2511 return 0;
2512
2513 bfd_set_error (bfd_error_invalid_operation);
2514 return -1;
2515}
252b5132
RH		 2516\f
2517long
116c20d2 2518NAME (aout, get_symtab_upper_bound) (bfd *abfd)
252b5132 2519{
116c20d2 2520 if (!NAME (aout, slurp_symbol_table) (abfd))
252b5132
RH		 2521 return -1;
2522
2523 return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
2524}
2525
1725a96e 2526alent *
116c20d2
NC		 2527NAME (aout, get_lineno) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2528 asymbol *ignore_symbol ATTRIBUTE_UNUSED)
252b5132 2529{
116c20d2 2530 return NULL;
252b5132
RH		 2531}
2532
252b5132 2533void
116c20d2
NC		 2534NAME (aout, get_symbol_info) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2535 asymbol *symbol,
2536 symbol_info *ret)
252b5132
RH		 2537{
2538 bfd_symbol_info (symbol, ret);
2539
2540 if (ret->type == '?')
2541 {
923f08ff 2542 int type_code = aout_symbol (symbol)->type & 0xff;
252b5132
RH		 2543 const char *stab_name = bfd_get_stab_name (type_code);
2544 static char buf[10];
2545
2546 if (stab_name == NULL)
2547 {
e60b52c6 2548 sprintf (buf, "(%d)", type_code);
252b5132
RH		 2549 stab_name = buf;
2550 }
2551 ret->type = '-';
2552 ret->stab_type = type_code;
923f08ff
AM		 2553 ret->stab_other = (unsigned) (aout_symbol (symbol)->other & 0xff);
2554 ret->stab_desc = (unsigned) (aout_symbol (symbol)->desc & 0xffff);
252b5132
RH		 2555 ret->stab_name = stab_name;
2556 }
2557}
2558
252b5132 2559void
116c20d2
NC		 2560NAME (aout, print_symbol) (bfd *abfd,
2561 void * afile,
2562 asymbol *symbol,
2563 bfd_print_symbol_type how)
252b5132
RH		 2564{
2565 FILE *file = (FILE *)afile;
2566
923f08ff 2567 switch (how)
252b5132 2568 {
923f08ff
AM		 2569 case bfd_print_symbol_name:
2570 if (symbol->name)
2571 fprintf (file,"%s", symbol->name);
2572 break;
2573 case bfd_print_symbol_more:
2574 fprintf (file,"%4x %2x %2x",
2575 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2576 (unsigned) (aout_symbol (symbol)->other & 0xff),
2577 (unsigned) (aout_symbol (symbol)->type));
2578 break;
2579 case bfd_print_symbol_all:
2580 {
2581 const char *section_name = symbol->section->name;
252b5132 2582
116c20d2 2583 bfd_print_symbol_vandf (abfd, (void *)file, symbol);
252b5132 2584
923f08ff
AM		 2585 fprintf (file," %-5s %04x %02x %02x",
2586 section_name,
2587 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2588 (unsigned) (aout_symbol (symbol)->other & 0xff),
2589 (unsigned) (aout_symbol (symbol)->type & 0xff));
2590 if (symbol->name)
2591 fprintf (file," %s", symbol->name);
2592 }
2593 break;
252b5132 2594 }
252b5132
RH		 2595}
2596
2597/* If we don't have to allocate more than 1MB to hold the generic
2598 symbols, we use the generic minisymbol methord: it's faster, since
2599 it only translates the symbols once, not multiple times. */
2600#define MINISYM_THRESHOLD (1000000 / sizeof (asymbol))
2601
2602/* Read minisymbols. For minisymbols, we use the unmodified a.out
2603 symbols. The minisymbol_to_symbol function translates these into
2604 BFD asymbol structures. */
2605
2606long
116c20d2
NC		 2607NAME (aout, read_minisymbols) (bfd *abfd,
2608 bfd_boolean dynamic,
2609 void * *minisymsp,
2610 unsigned int *sizep)
252b5132
RH		 2611{
2612 if (dynamic)
116c20d2
NC		 2613 /* We could handle the dynamic symbols here as well, but it's
2614 easier to hand them off. */
2615 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
252b5132
RH		 2616
2617 if (! aout_get_external_symbols (abfd))
2618 return -1;
2619
2620 if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2621 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
2622
116c20d2 2623 *minisymsp = (void *) obj_aout_external_syms (abfd);
252b5132
RH		 2624
2625 /* By passing the external symbols back from this routine, we are
2626 giving up control over the memory block. Clear
2627 obj_aout_external_syms, so that we do not try to free it
2628 ourselves. */
2629 obj_aout_external_syms (abfd) = NULL;
2630
2631 *sizep = EXTERNAL_NLIST_SIZE;
2632 return obj_aout_external_sym_count (abfd);
2633}
2634
2635/* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
2636 unmodified a.out symbol. The SYM argument is a structure returned
2637 by bfd_make_empty_symbol, which we fill in here. */
2638
2639asymbol *
116c20d2
NC		 2640NAME (aout, minisymbol_to_symbol) (bfd *abfd,
2641 bfd_boolean dynamic,
2642 const void * minisym,
2643 asymbol *sym)
252b5132
RH		 2644{
2645 if (dynamic
2646 || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2647 return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
2648
2649 memset (sym, 0, sizeof (aout_symbol_type));
2650
2651 /* We call translate_symbol_table to translate a single symbol. */
116c20d2 2652 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 2653 (abfd,
2654 (aout_symbol_type *) sym,
2655 (struct external_nlist *) minisym,
2656 (bfd_size_type) 1,
2657 obj_aout_external_strings (abfd),
2658 obj_aout_external_string_size (abfd),
b34976b6 2659 FALSE)))
252b5132
RH		 2660 return NULL;
2661
2662 return sym;
2663}
2664
f7c33884
NC		 2665/* Provided a BFD, a section and an offset into the section, calculate
2666 and return the name of the source file and the line nearest to the
2667 wanted location. */
252b5132 2668
b34976b6 2669bfd_boolean
116c20d2 2670NAME (aout, find_nearest_line) (bfd *abfd,
116c20d2 2671 asymbol **symbols,
fb167eb2 2672 asection *section,
116c20d2
NC		 2673 bfd_vma offset,
2674 const char **filename_ptr,
2675 const char **functionname_ptr,
fb167eb2
AM		 2676 unsigned int *line_ptr,
2677 unsigned int *disriminator_ptr)
252b5132 2678{
f7c33884 2679 /* Run down the file looking for the filename, function and linenumber. */
252b5132 2680 asymbol **p;
dc810e39
AM		 2681 const char *directory_name = NULL;
2682 const char *main_file_name = NULL;
2683 const char *current_file_name = NULL;
116c20d2 2684 const char *line_file_name = NULL; /* Value of current_file_name at line number. */
dc810e39 2685 const char *line_directory_name = NULL; /* Value of directory_name at line number. */
252b5132
RH		 2686 bfd_vma low_line_vma = 0;
2687 bfd_vma low_func_vma = 0;
2688 asymbol *func = 0;
dc810e39 2689 bfd_size_type filelen, funclen;
252b5132
RH		 2690 char *buf;
2691
2692 *filename_ptr = abfd->filename;
50455f1a 2693 *functionname_ptr = NULL;
252b5132 2694 *line_ptr = 0;
fb167eb2
AM		 2695 if (disriminator_ptr)
2696 *disriminator_ptr = 0;
f7c33884 2697
116c20d2 2698 if (symbols != NULL)
923f08ff
AM		 2699 {
2700 for (p = symbols; *p; p++)
2701 {
2702 aout_symbol_type *q = (aout_symbol_type *) (*p);
2703 next:
2704 switch (q->type)
2705 {
2706 case N_TEXT:
2707 /* If this looks like a file name symbol, and it comes after
2708 the line number we have found so far, but before the
2709 offset, then we have probably not found the right line
2710 number. */
2711 if (q->symbol.value <= offset
2712 && ((q->symbol.value > low_line_vma
2713 && (line_file_name != NULL
2714 || *line_ptr != 0))
2715 || (q->symbol.value > low_func_vma
2716 && func != NULL)))
2717 {
2718 const char *symname;
252b5132 2719
923f08ff
AM		 2720 symname = q->symbol.name;
2721 if (strcmp (symname + strlen (symname) - 2, ".o") == 0)
2722 {
2723 if (q->symbol.value > low_line_vma)
2724 {
2725 *line_ptr = 0;
2726 line_file_name = NULL;
2727 }
2728 if (q->symbol.value > low_func_vma)
2729 func = NULL;
2730 }
2731 }
2732 break;
252b5132 2733
923f08ff
AM		 2734 case N_SO:
2735 /* If this symbol is less than the offset, but greater than
2736 the line number we have found so far, then we have not
2737 found the right line number. */
2738 if (q->symbol.value <= offset)
2739 {
2740 if (q->symbol.value > low_line_vma)
2741 {
2742 *line_ptr = 0;
2743 line_file_name = NULL;
2744 }
2745 if (q->symbol.value > low_func_vma)
2746 func = NULL;
2747 }
252b5132 2748
923f08ff
AM		 2749 main_file_name = current_file_name = q->symbol.name;
2750 /* Look ahead to next symbol to check if that too is an N_SO. */
2751 p++;
2752 if (*p == NULL)
c3864421 2753 goto done;
923f08ff
AM		 2754 q = (aout_symbol_type *) (*p);
2755 if (q->type != (int)N_SO)
2756 goto next;
2757
2758 /* Found a second N_SO First is directory; second is filename. */
2759 directory_name = current_file_name;
2760 main_file_name = current_file_name = q->symbol.name;
2761 if (obj_textsec (abfd) != section)
2762 goto done;
2763 break;
2764 case N_SOL:
2765 current_file_name = q->symbol.name;
2766 break;
252b5132 2767
923f08ff 2768 case N_SLINE:
252b5132 2769
923f08ff
AM		 2770 case N_DSLINE:
2771 case N_BSLINE:
2772 /* We'll keep this if it resolves nearer than the one we have
2773 already. */
2774 if (q->symbol.value >= low_line_vma
2775 && q->symbol.value <= offset)
2776 {
2777 *line_ptr = q->desc;
2778 low_line_vma = q->symbol.value;
2779 line_file_name = current_file_name;
2780 line_directory_name = directory_name;
2781 }
2782 break;
2783 case N_FUN:
2784 {
f7c33884 2785 /* We'll keep this if it is nearer than the one we have already. */
923f08ff 2786 if (q->symbol.value >= low_func_vma &&
f7c33884
NC		 2787 q->symbol.value <= offset)
2788 {
2789 low_func_vma = q->symbol.value;
2790 func = (asymbol *)q;
2791 }
923f08ff
AM		 2792 else if (q->symbol.value > offset)
2793 goto done;
2794 }
2795 break;
2796 }
252b5132 2797 }
252b5132 2798 }
252b5132
RH		 2799
2800 done:
2801 if (*line_ptr != 0)
2802 {
2803 main_file_name = line_file_name;
2804 directory_name = line_directory_name;
2805 }
2806
2807 if (main_file_name == NULL
5af11cab 2808 || IS_ABSOLUTE_PATH (main_file_name)
252b5132
RH		 2809 || directory_name == NULL)
2810 filelen = 0;
2811 else
2812 filelen = strlen (directory_name) + strlen (main_file_name);
f7c33884 2813
252b5132
RH		 2814 if (func == NULL)
2815 funclen = 0;
2816 else
2817 funclen = strlen (bfd_asymbol_name (func));
2818
2819 if (adata (abfd).line_buf != NULL)
2820 free (adata (abfd).line_buf);
f7c33884 2821
252b5132
RH		 2822 if (filelen + funclen == 0)
2823 adata (abfd).line_buf = buf = NULL;
2824 else
2825 {
a50b1753 2826 buf = (char *) bfd_malloc (filelen + funclen + 3);
252b5132
RH		 2827 adata (abfd).line_buf = buf;
2828 if (buf == NULL)
b34976b6 2829 return FALSE;
252b5132
RH		 2830 }
2831
2832 if (main_file_name != NULL)
2833 {
5af11cab 2834 if (IS_ABSOLUTE_PATH (main_file_name) || directory_name == NULL)
252b5132
RH		 2835 *filename_ptr = main_file_name;
2836 else
2837 {
50455f1a
NC		 2838 if (buf == NULL)
2839 /* PR binutils/20891: In a corrupt input file both
2840 main_file_name and directory_name can be empty... */
2841 * filename_ptr = NULL;
2842 else
2843 {
2844 snprintf (buf, filelen + 1, "%s%s", directory_name,
2845 main_file_name);
2846 *filename_ptr = buf;
2847 buf += filelen + 1;
2848 }
252b5132
RH		 2849 }
2850 }
2851
2852 if (func)
2853 {
2854 const char *function = func->name;
dc810e39 2855 char *colon;
252b5132 2856
e82ab856
NC		 2857 if (buf == NULL)
2858 {
2859 /* PR binutils/20892: In a corrupt input file func can be empty. */
2860 * functionname_ptr = NULL;
2861 return TRUE;
2862 }
252b5132
RH		 2863 /* The caller expects a symbol name. We actually have a
2864 function name, without the leading underscore. Put the
2865 underscore back in, so that the caller gets a symbol name. */
2866 if (bfd_get_symbol_leading_char (abfd) == '\0')
2867 strcpy (buf, function);
2868 else
2869 {
2870 buf[0] = bfd_get_symbol_leading_char (abfd);
2871 strcpy (buf + 1, function);
2872 }
f7c33884 2873 /* Have to remove : stuff. */
dc810e39
AM		 2874 colon = strchr (buf, ':');
2875 if (colon != NULL)
2876 *colon = '\0';
252b5132
RH		 2877 *functionname_ptr = buf;
2878 }
2879
b34976b6 2880 return TRUE;
252b5132
RH		 2881}
2882
252b5132 2883int
a6b96beb
AM		 2884NAME (aout, sizeof_headers) (bfd *abfd,
2885 struct bfd_link_info *info ATTRIBUTE_UNUSED)
252b5132 2886{
923f08ff 2887 return adata (abfd).exec_bytes_size;
252b5132
RH		 2888}
2889
2890/* Free all information we have cached for this BFD. We can always
2891 read it again later if we need it. */
2892
b34976b6 2893bfd_boolean
116c20d2 2894NAME (aout, bfd_free_cached_info) (bfd *abfd)
252b5132
RH		 2895{
2896 asection *o;
2897
920581c5
L		 2898 if (bfd_get_format (abfd) != bfd_object
2899 || abfd->tdata.aout_data == NULL)
b34976b6 2900 return TRUE;
252b5132
RH		 2901
2902#define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
2903 BFCI_FREE (obj_aout_symbols (abfd));
2904#ifdef USE_MMAP
2905 obj_aout_external_syms (abfd) = 0;
2906 bfd_free_window (&obj_aout_sym_window (abfd));
2907 bfd_free_window (&obj_aout_string_window (abfd));
2908 obj_aout_external_strings (abfd) = 0;
2909#else
2910 BFCI_FREE (obj_aout_external_syms (abfd));
2911 BFCI_FREE (obj_aout_external_strings (abfd));
2912#endif
116c20d2 2913 for (o = abfd->sections; o != NULL; o = o->next)
252b5132
RH		 2914 BFCI_FREE (o->relocation);
2915#undef BFCI_FREE
2916
b34976b6 2917 return TRUE;
252b5132
RH		 2918}
2919\f
2920/* a.out link code. */
2921
252b5132
RH		 2922/* Routine to create an entry in an a.out link hash table. */
2923
2924struct bfd_hash_entry *
116c20d2
NC		 2925NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry,
2926 struct bfd_hash_table *table,
2927 const char *string)
252b5132
RH		 2928{
2929 struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry;
2930
2931 /* Allocate the structure if it has not already been allocated by a
2932 subclass. */
116c20d2 2933 if (ret == NULL)
a50b1753
NC		 2934 ret = (struct aout_link_hash_entry *) bfd_hash_allocate (table,
2935 sizeof (* ret));
116c20d2
NC		 2936 if (ret == NULL)
2937 return NULL;
252b5132
RH		 2938
2939 /* Call the allocation method of the superclass. */
2940 ret = ((struct aout_link_hash_entry *)
2941 _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2942 table, string));
2943 if (ret)
2944 {
2945 /* Set local fields. */
b34976b6 2946 ret->written = FALSE;
252b5132
RH		 2947 ret->indx = -1;
2948 }
2949
2950 return (struct bfd_hash_entry *) ret;
2951}
2952
2953/* Initialize an a.out link hash table. */
2954
b34976b6 2955bfd_boolean
116c20d2
NC		 2956NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table,
2957 bfd *abfd,
2958 struct bfd_hash_entry *(*newfunc)
2959 (struct bfd_hash_entry *, struct bfd_hash_table *,
66eb6687
AM		 2960 const char *),
2961 unsigned int entsize)
252b5132 2962{
66eb6687 2963 return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize);
252b5132
RH		 2964}
2965
2966/* Create an a.out link hash table. */
2967
2968struct bfd_link_hash_table *
116c20d2 2969NAME (aout, link_hash_table_create) (bfd *abfd)
252b5132
RH		 2970{
2971 struct aout_link_hash_table *ret;
116c20d2 2972 bfd_size_type amt = sizeof (* ret);
252b5132 2973
a50b1753 2974 ret = (struct aout_link_hash_table *) bfd_malloc (amt);
252b5132 2975 if (ret == NULL)
116c20d2 2976 return NULL;
5ed6aba4 2977
66eb6687
AM		 2978 if (!NAME (aout, link_hash_table_init) (ret, abfd,
2979 NAME (aout, link_hash_newfunc),
2980 sizeof (struct aout_link_hash_entry)))
252b5132
RH		 2981 {
2982 free (ret);
116c20d2 2983 return NULL;
252b5132
RH		 2984 }
2985 return &ret->root;
2986}
2987
116c20d2 2988/* Add all symbols from an object file to the hash table. */
252b5132 2989
b34976b6 2990static bfd_boolean
116c20d2 2991aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 2992{
116c20d2
NC		 2993 bfd_boolean (*add_one_symbol)
2994 (struct bfd_link_info *, bfd *, const char *, flagword, asection *,
2995 bfd_vma, const char *, bfd_boolean, bfd_boolean,
2996 struct bfd_link_hash_entry **);
2997 struct external_nlist *syms;
2998 bfd_size_type sym_count;
2999 char *strings;
3000 bfd_boolean copy;
3001 struct aout_link_hash_entry **sym_hash;
3002 struct external_nlist *p;
3003 struct external_nlist *pend;
3004 bfd_size_type amt;
252b5132 3005
116c20d2
NC		 3006 syms = obj_aout_external_syms (abfd);
3007 sym_count = obj_aout_external_sym_count (abfd);
3008 strings = obj_aout_external_strings (abfd);
3009 if (info->keep_memory)
3010 copy = FALSE;
3011 else
3012 copy = TRUE;
252b5132 3013
116c20d2 3014 if (aout_backend_info (abfd)->add_dynamic_symbols != NULL)
252b5132 3015 {
116c20d2
NC		 3016 if (! ((*aout_backend_info (abfd)->add_dynamic_symbols)
3017 (abfd, info, &syms, &sym_count, &strings)))
b34976b6 3018 return FALSE;
252b5132
RH		 3019 }
3020
20c6e70e
MS		 3021 if (sym_count == 0)
3022 return TRUE; /* Nothing to do. */
3023
116c20d2
NC		 3024 /* We keep a list of the linker hash table entries that correspond
3025 to particular symbols. We could just look them up in the hash
3026 table, but keeping the list is more efficient. Perhaps this
3027 should be conditional on info->keep_memory. */
3028 amt = sym_count * sizeof (struct aout_link_hash_entry *);
a50b1753 3029 sym_hash = (struct aout_link_hash_entry **) bfd_alloc (abfd, amt);
20c6e70e 3030 if (sym_hash == NULL)
116c20d2
NC		 3031 return FALSE;
3032 obj_aout_sym_hashes (abfd) = sym_hash;
252b5132 3033
116c20d2
NC		 3034 add_one_symbol = aout_backend_info (abfd)->add_one_symbol;
3035 if (add_one_symbol == NULL)
3036 add_one_symbol = _bfd_generic_link_add_one_symbol;
252b5132 3037
116c20d2
NC		 3038 p = syms;
3039 pend = p + sym_count;
3040 for (; p < pend; p++, sym_hash++)
252b5132 3041 {
116c20d2 3042 int type;
252b5132 3043 const char *name;
116c20d2
NC		 3044 bfd_vma value;
3045 asection *section;
3046 flagword flags;
3047 const char *string;
252b5132 3048
116c20d2 3049 *sym_hash = NULL;
252b5132 3050
116c20d2 3051 type = H_GET_8 (abfd, p->e_type);
252b5132 3052
116c20d2
NC		 3053 /* Ignore debugging symbols. */
3054 if ((type & N_STAB) != 0)
3055 continue;
252b5132 3056
e517df3d 3057 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
531336e3 3058 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3059 return FALSE;
116c20d2
NC		 3060 name = strings + GET_WORD (abfd, p->e_strx);
3061 value = GET_WORD (abfd, p->e_value);
3062 flags = BSF_GLOBAL;
3063 string = NULL;
3064 switch (type)
252b5132 3065 {
116c20d2
NC		 3066 default:
3067 abort ();
f7c33884 3068
116c20d2
NC		 3069 case N_UNDF:
3070 case N_ABS:
3071 case N_TEXT:
3072 case N_DATA:
3073 case N_BSS:
3074 case N_FN_SEQ:
3075 case N_COMM:
3076 case N_SETV:
3077 case N_FN:
3078 /* Ignore symbols that are not externally visible. */
3079 continue;
3080 case N_INDR:
3081 /* Ignore local indirect symbol. */
3082 ++p;
3083 ++sym_hash;
3084 continue;
252b5132 3085
116c20d2
NC		 3086 case N_UNDF | N_EXT:
3087 if (value == 0)
f7c33884 3088 {
116c20d2
NC		 3089 section = bfd_und_section_ptr;
3090 flags = 0;
252b5132
RH		 3091 }
3092 else
3093 section = bfd_com_section_ptr;
3094 break;
3095 case N_ABS | N_EXT:
3096 section = bfd_abs_section_ptr;
3097 break;
3098 case N_TEXT | N_EXT:
3099 section = obj_textsec (abfd);
3100 value -= bfd_get_section_vma (abfd, section);
3101 break;
3102 case N_DATA | N_EXT:
3103 case N_SETV | N_EXT:
3104 /* Treat N_SETV symbols as N_DATA symbol; see comment in
3105 translate_from_native_sym_flags. */
3106 section = obj_datasec (abfd);
3107 value -= bfd_get_section_vma (abfd, section);
3108 break;
3109 case N_BSS | N_EXT:
3110 section = obj_bsssec (abfd);
3111 value -= bfd_get_section_vma (abfd, section);
3112 break;
3113 case N_INDR | N_EXT:
3114 /* An indirect symbol. The next symbol is the symbol
3115 which this one really is. */
39d4daf6
NC		 3116 /* See PR 20925 for a reproducer. */
3117 if (p + 1 >= pend)
3118 return FALSE;
252b5132 3119 ++p;
e517df3d 3120 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3121 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3122 return FALSE;
252b5132
RH		 3123 string = strings + GET_WORD (abfd, p->e_strx);
3124 section = bfd_ind_section_ptr;
3125 flags |= BSF_INDIRECT;
3126 break;
3127 case N_COMM | N_EXT:
3128 section = bfd_com_section_ptr;
3129 break;
3130 case N_SETA: case N_SETA | N_EXT:
3131 section = bfd_abs_section_ptr;
3132 flags |= BSF_CONSTRUCTOR;
3133 break;
3134 case N_SETT: case N_SETT | N_EXT:
3135 section = obj_textsec (abfd);
3136 flags |= BSF_CONSTRUCTOR;
3137 value -= bfd_get_section_vma (abfd, section);
3138 break;
3139 case N_SETD: case N_SETD | N_EXT:
3140 section = obj_datasec (abfd);
3141 flags |= BSF_CONSTRUCTOR;
3142 value -= bfd_get_section_vma (abfd, section);
3143 break;
3144 case N_SETB: case N_SETB | N_EXT:
3145 section = obj_bsssec (abfd);
3146 flags |= BSF_CONSTRUCTOR;
3147 value -= bfd_get_section_vma (abfd, section);
3148 break;
3149 case N_WARNING:
3150 /* A warning symbol. The next symbol is the one to warn
9f400ee9
HPN		 3151 about. If there is no next symbol, just look away. */
3152 if (p + 1 >= pend)
3153 return TRUE;
252b5132
RH		 3154 ++p;
3155 string = name;
e517df3d 3156 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3157 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3158 return FALSE;
252b5132
RH		 3159 name = strings + GET_WORD (abfd, p->e_strx);
3160 section = bfd_und_section_ptr;
3161 flags |= BSF_WARNING;
3162 break;
3163 case N_WEAKU:
3164 section = bfd_und_section_ptr;
3165 flags = BSF_WEAK;
3166 break;
3167 case N_WEAKA:
3168 section = bfd_abs_section_ptr;
3169 flags = BSF_WEAK;
3170 break;
3171 case N_WEAKT:
3172 section = obj_textsec (abfd);
3173 value -= bfd_get_section_vma (abfd, section);
3174 flags = BSF_WEAK;
3175 break;
3176 case N_WEAKD:
3177 section = obj_datasec (abfd);
3178 value -= bfd_get_section_vma (abfd, section);
3179 flags = BSF_WEAK;
3180 break;
3181 case N_WEAKB:
3182 section = obj_bsssec (abfd);
3183 value -= bfd_get_section_vma (abfd, section);
3184 flags = BSF_WEAK;
3185 break;
3186 }
3187
3188 if (! ((*add_one_symbol)
b34976b6 3189 (info, abfd, name, flags, section, value, string, copy, FALSE,
252b5132 3190 (struct bfd_link_hash_entry **) sym_hash)))
b34976b6 3191 return FALSE;
252b5132
RH		 3192
3193 /* Restrict the maximum alignment of a common symbol based on
3194 the architecture, since a.out has no way to represent
3195 alignment requirements of a section in a .o file. FIXME:
3196 This isn't quite right: it should use the architecture of the
3197 output file, not the input files. */
3198 if ((*sym_hash)->root.type == bfd_link_hash_common
3199 && ((*sym_hash)->root.u.c.p->alignment_power >
3200 bfd_get_arch_info (abfd)->section_align_power))
3201 (*sym_hash)->root.u.c.p->alignment_power =
3202 bfd_get_arch_info (abfd)->section_align_power;
3203
3204 /* If this is a set symbol, and we are not building sets, then
3205 it is possible for the hash entry to not have been set. In
3206 such a case, treat the symbol as not globally defined. */
3207 if ((*sym_hash)->root.type == bfd_link_hash_new)
3208 {
3209 BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0);
3210 *sym_hash = NULL;
3211 }
3212
3213 if (type == (N_INDR | N_EXT) || type == N_WARNING)
3214 ++sym_hash;
3215 }
3216
b34976b6 3217 return TRUE;
252b5132 3218}
252b5132 3219
116c20d2
NC		 3220/* Free up the internal symbols read from an a.out file. */
3221
3222static bfd_boolean
3223aout_link_free_symbols (bfd *abfd)
252b5132 3224{
116c20d2
NC		 3225 if (obj_aout_external_syms (abfd) != NULL)
3226 {
3227#ifdef USE_MMAP
3228 bfd_free_window (&obj_aout_sym_window (abfd));
3229#else
3230 free ((void *) obj_aout_external_syms (abfd));
3231#endif
3232 obj_aout_external_syms (abfd) = NULL;
3233 }
3234 if (obj_aout_external_strings (abfd) != NULL)
3235 {
3236#ifdef USE_MMAP
3237 bfd_free_window (&obj_aout_string_window (abfd));
3238#else
3239 free ((void *) obj_aout_external_strings (abfd));
3240#endif
3241 obj_aout_external_strings (abfd) = NULL;
3242 }
3243 return TRUE;
3244}
252b5132 3245
116c20d2 3246/* Add symbols from an a.out object file. */
252b5132 3247
116c20d2
NC		 3248static bfd_boolean
3249aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 3250{
116c20d2
NC		 3251 if (! aout_get_external_symbols (abfd))
3252 return FALSE;
3253 if (! aout_link_add_symbols (abfd, info))
3254 return FALSE;
3255 if (! info->keep_memory)
3256 {
3257 if (! aout_link_free_symbols (abfd))
3258 return FALSE;
3259 }
3260 return TRUE;
3261}
252b5132 3262
116c20d2
NC		 3263/* Look through the internal symbols to see if this object file should
3264 be included in the link. We should include this object file if it
3265 defines any symbols which are currently undefined. If this object
3266 file defines a common symbol, then we may adjust the size of the
3267 known symbol but we do not include the object file in the link
3268 (unless there is some other reason to include it). */
252b5132 3269
116c20d2
NC		 3270static bfd_boolean
3271aout_link_check_ar_symbols (bfd *abfd,
3272 struct bfd_link_info *info,
5d3236ee
DK		 3273 bfd_boolean *pneeded,
3274 bfd **subsbfd)
252b5132 3275{
116c20d2
NC		 3276 struct external_nlist *p;
3277 struct external_nlist *pend;
3278 char *strings;
252b5132 3279
116c20d2 3280 *pneeded = FALSE;
252b5132 3281
116c20d2
NC		 3282 /* Look through all the symbols. */
3283 p = obj_aout_external_syms (abfd);
3284 pend = p + obj_aout_external_sym_count (abfd);
3285 strings = obj_aout_external_strings (abfd);
3286 for (; p < pend; p++)
3287 {
3288 int type = H_GET_8 (abfd, p->e_type);
3289 const char *name;
3290 struct bfd_link_hash_entry *h;
252b5132 3291
116c20d2
NC		 3292 /* Ignore symbols that are not externally visible. This is an
3293 optimization only, as we check the type more thoroughly
3294 below. */
3295 if (((type & N_EXT) == 0
3296 || (type & N_STAB) != 0
3297 || type == N_FN)
3298 && type != N_WEAKA
3299 && type != N_WEAKT
3300 && type != N_WEAKD
3301 && type != N_WEAKB)
3302 {
3303 if (type == N_WARNING
3304 || type == N_INDR)
3305 ++p;
3306 continue;
3307 }
3308
3309 name = strings + GET_WORD (abfd, p->e_strx);
3310 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
3311
3312 /* We are only interested in symbols that are currently
3313 undefined or common. */
3314 if (h == NULL
3315 || (h->type != bfd_link_hash_undefined
3316 && h->type != bfd_link_hash_common))
3317 {
3318 if (type == (N_INDR | N_EXT))
3319 ++p;
3320 continue;
3321 }
3322
3323 if (type == (N_TEXT | N_EXT)
3324 || type == (N_DATA | N_EXT)
3325 || type == (N_BSS | N_EXT)
3326 || type == (N_ABS | N_EXT)
3327 || type == (N_INDR | N_EXT))
3328 {
3329 /* This object file defines this symbol. We must link it
3330 in. This is true regardless of whether the current
3331 definition of the symbol is undefined or common.
3332
3333 If the current definition is common, we have a case in
3334 which we have already seen an object file including:
3335 int a;
3336 and this object file from the archive includes:
3337 int a = 5;
3338 In such a case, whether to include this object is target
3339 dependant for backward compatibility.
3340
3341 FIXME: The SunOS 4.1.3 linker will pull in the archive
3342 element if the symbol is defined in the .data section,
3343 but not if it is defined in the .text section. That
3344 seems a bit crazy to me, and it has not been implemented
3345 yet. However, it might be correct. */
3346 if (h->type == bfd_link_hash_common)
3347 {
3348 int skip = 0;
3349
f88dc410 3350 switch (info->common_skip_ar_symbols)
116c20d2
NC		 3351 {
3352 case bfd_link_common_skip_text:
3353 skip = (type == (N_TEXT | N_EXT));
3354 break;
3355 case bfd_link_common_skip_data:
3356 skip = (type == (N_DATA | N_EXT));
3357 break;
3358 default:
3359 case bfd_link_common_skip_all:
3360 skip = 1;
3361 break;
3362 }
3363
3364 if (skip)
3365 continue;
3366 }
3367
0e144ba7
AM		 3368 if (!(*info->callbacks
3369 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3370 return FALSE;
3371 *pneeded = TRUE;
3372 return TRUE;
3373 }
3374
3375 if (type == (N_UNDF | N_EXT))
3376 {
3377 bfd_vma value;
3378
3379 value = GET_WORD (abfd, p->e_value);
3380 if (value != 0)
3381 {
3382 /* This symbol is common in the object from the archive
3383 file. */
3384 if (h->type == bfd_link_hash_undefined)
3385 {
3386 bfd *symbfd;
3387 unsigned int power;
3388
3389 symbfd = h->u.undef.abfd;
3390 if (symbfd == NULL)
3391 {
3392 /* This symbol was created as undefined from
3393 outside BFD. We assume that we should link
3394 in the object file. This is done for the -u
3395 option in the linker. */
0e144ba7
AM		 3396 if (!(*info->callbacks
3397 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3398 return FALSE;
3399 *pneeded = TRUE;
3400 return TRUE;
3401 }
3402 /* Turn the current link symbol into a common
3403 symbol. It is already on the undefs list. */
3404 h->type = bfd_link_hash_common;
a50b1753 3405 h->u.c.p = (struct bfd_link_hash_common_entry *)
0e144ba7
AM		 3406 bfd_hash_allocate (&info->hash->table,
3407 sizeof (struct bfd_link_hash_common_entry));
116c20d2
NC		 3408 if (h->u.c.p == NULL)
3409 return FALSE;
3410
3411 h->u.c.size = value;
3412
3413 /* FIXME: This isn't quite right. The maximum
3414 alignment of a common symbol should be set by the
3415 architecture of the output file, not of the input
3416 file. */
3417 power = bfd_log2 (value);
3418 if (power > bfd_get_arch_info (abfd)->section_align_power)
3419 power = bfd_get_arch_info (abfd)->section_align_power;
3420 h->u.c.p->alignment_power = power;
3421
3422 h->u.c.p->section = bfd_make_section_old_way (symbfd,
3423 "COMMON");
3424 }
3425 else
3426 {
3427 /* Adjust the size of the common symbol if
3428 necessary. */
3429 if (value > h->u.c.size)
3430 h->u.c.size = value;
3431 }
3432 }
3433 }
3434
3435 if (type == N_WEAKA
3436 || type == N_WEAKT
3437 || type == N_WEAKD
3438 || type == N_WEAKB)
3439 {
3440 /* This symbol is weak but defined. We must pull it in if
3441 the current link symbol is undefined, but we don't want
3442 it if the current link symbol is common. */
3443 if (h->type == bfd_link_hash_undefined)
3444 {
0e144ba7
AM		 3445 if (!(*info->callbacks
3446 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3447 return FALSE;
3448 *pneeded = TRUE;
3449 return TRUE;
3450 }
3451 }
3452 }
3453
3454 /* We do not need this object file. */
3455 return TRUE;
3456}
3457/* Check a single archive element to see if we need to include it in
3458 the link. *PNEEDED is set according to whether this element is
3459 needed in the link or not. This is called from
3460 _bfd_generic_link_add_archive_symbols. */
3461
3462static bfd_boolean
3463aout_link_check_archive_element (bfd *abfd,
3464 struct bfd_link_info *info,
13e570f8
AM		 3465 struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
3466 const char *name ATTRIBUTE_UNUSED,
116c20d2
NC		 3467 bfd_boolean *pneeded)
3468{
0e144ba7
AM		 3469 bfd *oldbfd;
3470 bfd_boolean needed;
5d3236ee 3471
0e144ba7 3472 if (!aout_get_external_symbols (abfd))
116c20d2
NC		 3473 return FALSE;
3474
0e144ba7
AM		 3475 oldbfd = abfd;
3476 if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd))
116c20d2
NC		 3477 return FALSE;
3478
0e144ba7
AM		 3479 needed = *pneeded;
3480 if (needed)
116c20d2 3481 {
5d3236ee
DK		 3482 /* Potentially, the add_archive_element hook may have set a
3483 substitute BFD for us. */
0e144ba7
AM		 3484 if (abfd != oldbfd)
3485 {
3486 if (!info->keep_memory
3487 && !aout_link_free_symbols (oldbfd))
3488 return FALSE;
3489 if (!aout_get_external_symbols (abfd))
3490 return FALSE;
3491 }
3492 if (!aout_link_add_symbols (abfd, info))
116c20d2
NC		 3493 return FALSE;
3494 }
3495
0e144ba7 3496 if (!info->keep_memory || !needed)
116c20d2 3497 {
0e144ba7 3498 if (!aout_link_free_symbols (abfd))
116c20d2
NC		 3499 return FALSE;
3500 }
3501
3502 return TRUE;
3503}
3504
3505/* Given an a.out BFD, add symbols to the global hash table as
3506 appropriate. */
3507
3508bfd_boolean
3509NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
3510{
3511 switch (bfd_get_format (abfd))
3512 {
3513 case bfd_object:
3514 return aout_link_add_object_symbols (abfd, info);
3515 case bfd_archive:
3516 return _bfd_generic_link_add_archive_symbols
3517 (abfd, info, aout_link_check_archive_element);
3518 default:
3519 bfd_set_error (bfd_error_wrong_format);
3520 return FALSE;
3521 }
3522}
3523\f
3524/* A hash table used for header files with N_BINCL entries. */
3525
3526struct aout_link_includes_table
3527{
3528 struct bfd_hash_table root;
3529};
3530
3531/* A linked list of totals that we have found for a particular header
3532 file. */
3533
3534struct aout_link_includes_totals
3535{
3536 struct aout_link_includes_totals *next;
3537 bfd_vma total;
3538};
3539
3540/* An entry in the header file hash table. */
3541
3542struct aout_link_includes_entry
3543{
3544 struct bfd_hash_entry root;
3545 /* List of totals we have found for this file. */
3546 struct aout_link_includes_totals *totals;
3547};
3548
3549/* Look up an entry in an the header file hash table. */
3550
3551#define aout_link_includes_lookup(table, string, create, copy) \
3552 ((struct aout_link_includes_entry *) \
3553 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
3554
3555/* During the final link step we need to pass around a bunch of
3556 information, so we do it in an instance of this structure. */
3557
3558struct aout_final_link_info
3559{
3560 /* General link information. */
3561 struct bfd_link_info *info;
3562 /* Output bfd. */
252b5132
RH		 3563 bfd *output_bfd;
3564 /* Reloc file positions. */
3565 file_ptr treloff, dreloff;
3566 /* File position of symbols. */
3567 file_ptr symoff;
3568 /* String table. */
3569 struct bfd_strtab_hash *strtab;
3570 /* Header file hash table. */
3571 struct aout_link_includes_table includes;
3572 /* A buffer large enough to hold the contents of any section. */
3573 bfd_byte *contents;
3574 /* A buffer large enough to hold the relocs of any section. */
116c20d2 3575 void * relocs;
252b5132
RH		 3576 /* A buffer large enough to hold the symbol map of any input BFD. */
3577 int *symbol_map;
3578 /* A buffer large enough to hold output symbols of any input BFD. */
3579 struct external_nlist *output_syms;
3580};
3581
252b5132
RH		 3582/* The function to create a new entry in the header file hash table. */
3583
3584static struct bfd_hash_entry *
116c20d2
NC		 3585aout_link_includes_newfunc (struct bfd_hash_entry *entry,
3586 struct bfd_hash_table *table,
3587 const char *string)
252b5132
RH		 3588{
3589 struct aout_link_includes_entry *ret =
3590 (struct aout_link_includes_entry *) entry;
3591
3592 /* Allocate the structure if it has not already been allocated by a
3593 subclass. */
116c20d2 3594 if (ret == NULL)
a50b1753
NC		 3595 ret = (struct aout_link_includes_entry *)
3596 bfd_hash_allocate (table, sizeof (* ret));
116c20d2
NC		 3597 if (ret == NULL)
3598 return NULL;
252b5132
RH		 3599
3600 /* Call the allocation method of the superclass. */
3601 ret = ((struct aout_link_includes_entry *)
3602 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
3603 if (ret)
3604 {
3605 /* Set local fields. */
3606 ret->totals = NULL;
3607 }
3608
3609 return (struct bfd_hash_entry *) ret;
3610}
3611
116c20d2
NC		 3612/* Write out a symbol that was not associated with an a.out input
3613 object. */
252b5132 3614
116c20d2 3615static bfd_boolean
7686d77d 3616aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data)
252b5132 3617{
7686d77d 3618 struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh;
57402f1e 3619 struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data;
116c20d2
NC		 3620 bfd *output_bfd;
3621 int type;
3622 bfd_vma val;
3623 struct external_nlist outsym;
3624 bfd_size_type indx;
3625 bfd_size_type amt;
252b5132 3626
116c20d2
NC		 3627 if (h->root.type == bfd_link_hash_warning)
3628 {
3629 h = (struct aout_link_hash_entry *) h->root.u.i.link;
3630 if (h->root.type == bfd_link_hash_new)
3631 return TRUE;
3632 }
252b5132 3633
57402f1e 3634 output_bfd = flaginfo->output_bfd;
252b5132 3635
116c20d2 3636 if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
252b5132 3637 {
116c20d2 3638 if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
57402f1e 3639 (output_bfd, flaginfo->info, h)))
252b5132 3640 {
116c20d2
NC		 3641 /* FIXME: No way to handle errors. */
3642 abort ();
252b5132 3643 }
116c20d2 3644 }
252b5132 3645
116c20d2
NC		 3646 if (h->written)
3647 return TRUE;
252b5132 3648
116c20d2 3649 h->written = TRUE;
252b5132 3650
116c20d2
NC		 3651 /* An indx of -2 means the symbol must be written. */
3652 if (h->indx != -2
57402f1e
NC		 3653 && (flaginfo->info->strip == strip_all
3654 || (flaginfo->info->strip == strip_some
3655 && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string,
116c20d2
NC		 3656 FALSE, FALSE) == NULL)))
3657 return TRUE;
252b5132 3658
116c20d2 3659 switch (h->root.type)
252b5132 3660 {
116c20d2
NC		 3661 default:
3662 case bfd_link_hash_warning:
3663 abort ();
3664 /* Avoid variable not initialized warnings. */
3665 return TRUE;
3666 case bfd_link_hash_new:
3667 /* This can happen for set symbols when sets are not being
3668 built. */
3669 return TRUE;
3670 case bfd_link_hash_undefined:
3671 type = N_UNDF | N_EXT;
3672 val = 0;
3673 break;
3674 case bfd_link_hash_defined:
3675 case bfd_link_hash_defweak:
3676 {
3677 asection *sec;
252b5132 3678
116c20d2
NC		 3679 sec = h->root.u.def.section->output_section;
3680 BFD_ASSERT (bfd_is_abs_section (sec)
3681 || sec->owner == output_bfd);
3682 if (sec == obj_textsec (output_bfd))
3683 type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
3684 else if (sec == obj_datasec (output_bfd))
3685 type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
3686 else if (sec == obj_bsssec (output_bfd))
3687 type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
3688 else
3689 type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
3690 type |= N_EXT;
3691 val = (h->root.u.def.value
3692 + sec->vma
3693 + h->root.u.def.section->output_offset);
3694 }
3695 break;
3696 case bfd_link_hash_common:
3697 type = N_UNDF | N_EXT;
3698 val = h->root.u.c.size;
3699 break;
3700 case bfd_link_hash_undefweak:
3701 type = N_WEAKU;
3702 val = 0;
c38eb2a6 3703 break;
116c20d2
NC		 3704 case bfd_link_hash_indirect:
3705 /* We ignore these symbols, since the indirected symbol is
3706 already in the hash table. */
3707 return TRUE;
3708 }
252b5132 3709
116c20d2
NC		 3710 H_PUT_8 (output_bfd, type, outsym.e_type);
3711 H_PUT_8 (output_bfd, 0, outsym.e_other);
3712 H_PUT_16 (output_bfd, 0, outsym.e_desc);
57402f1e 3713 indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string,
116c20d2
NC		 3714 FALSE);
3715 if (indx == - (bfd_size_type) 1)
3716 /* FIXME: No way to handle errors. */
3717 abort ();
252b5132 3718
116c20d2
NC		 3719 PUT_WORD (output_bfd, indx, outsym.e_strx);
3720 PUT_WORD (output_bfd, val, outsym.e_value);
252b5132 3721
116c20d2 3722 amt = EXTERNAL_NLIST_SIZE;
57402f1e 3723 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0
116c20d2
NC		 3724 || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt)
3725 /* FIXME: No way to handle errors. */
3726 abort ();
252b5132 3727
57402f1e 3728 flaginfo->symoff += EXTERNAL_NLIST_SIZE;
116c20d2
NC		 3729 h->indx = obj_aout_external_sym_count (output_bfd);
3730 ++obj_aout_external_sym_count (output_bfd);
252b5132 3731
116c20d2
NC		 3732 return TRUE;
3733}
252b5132 3734
116c20d2 3735/* Handle a link order which is supposed to generate a reloc. */
252b5132 3736
116c20d2 3737static bfd_boolean
57402f1e 3738aout_link_reloc_link_order (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3739 asection *o,
3740 struct bfd_link_order *p)
3741{
3742 struct bfd_link_order_reloc *pr;
3743 int r_index;
3744 int r_extern;
3745 reloc_howto_type *howto;
3746 file_ptr *reloff_ptr = NULL;
3747 struct reloc_std_external srel;
3748 struct reloc_ext_external erel;
3749 void * rel_ptr;
3750 bfd_size_type amt;
252b5132 3751
116c20d2 3752 pr = p->u.reloc.p;
252b5132 3753
116c20d2
NC		 3754 if (p->type == bfd_section_reloc_link_order)
3755 {
3756 r_extern = 0;
3757 if (bfd_is_abs_section (pr->u.section))
3758 r_index = N_ABS | N_EXT;
3759 else
3760 {
57402f1e 3761 BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd);
116c20d2
NC		 3762 r_index = pr->u.section->target_index;
3763 }
3764 }
3765 else
3766 {
3767 struct aout_link_hash_entry *h;
252b5132 3768
116c20d2
NC		 3769 BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
3770 r_extern = 1;
3771 h = ((struct aout_link_hash_entry *)
57402f1e 3772 bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info,
116c20d2
NC		 3773 pr->u.name, FALSE, FALSE, TRUE));
3774 if (h != NULL
3775 && h->indx >= 0)
3776 r_index = h->indx;
3777 else if (h != NULL)
3778 {
3779 /* We decided to strip this symbol, but it turns out that we
3780 can't. Note that we lose the other and desc information
3781 here. I don't think that will ever matter for a global
3782 symbol. */
3783 h->indx = -2;
3784 h->written = FALSE;
57402f1e 3785 if (!aout_link_write_other_symbol (&h->root.root, flaginfo))
116c20d2
NC		 3786 return FALSE;
3787 r_index = h->indx;
3788 }
3789 else
3790 {
1a72702b
AM		 3791 (*flaginfo->info->callbacks->unattached_reloc)
3792 (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0);
116c20d2
NC		 3793 r_index = 0;
3794 }
3795 }
252b5132 3796
57402f1e 3797 howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc);
116c20d2 3798 if (howto == 0)
252b5132 3799 {
116c20d2
NC		 3800 bfd_set_error (bfd_error_bad_value);
3801 return FALSE;
252b5132
RH		 3802 }
3803
57402f1e
NC		 3804 if (o == obj_textsec (flaginfo->output_bfd))
3805 reloff_ptr = &flaginfo->treloff;
3806 else if (o == obj_datasec (flaginfo->output_bfd))
3807 reloff_ptr = &flaginfo->dreloff;
116c20d2
NC		 3808 else
3809 abort ();
3810
57402f1e 3811 if (obj_reloc_entry_size (flaginfo->output_bfd) == RELOC_STD_SIZE)
252b5132 3812 {
116c20d2 3813#ifdef MY_put_reloc
57402f1e 3814 MY_put_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset, howto,
116c20d2
NC		 3815 &srel);
3816#else
3817 {
3818 int r_pcrel;
3819 int r_baserel;
3820 int r_jmptable;
3821 int r_relative;
3822 int r_length;
252b5132 3823
116c20d2
NC		 3824 r_pcrel = (int) howto->pc_relative;
3825 r_baserel = (howto->type & 8) != 0;
3826 r_jmptable = (howto->type & 16) != 0;
3827 r_relative = (howto->type & 32) != 0;
3828 r_length = howto->size;
252b5132 3829
57402f1e
NC		 3830 PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address);
3831 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3832 {
3833 srel.r_index[0] = r_index >> 16;
3834 srel.r_index[1] = r_index >> 8;
3835 srel.r_index[2] = r_index;
3836 srel.r_type[0] =
3837 ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
3838 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
3839 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
3840 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
3841 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
3842 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
3843 }
3844 else
3845 {
3846 srel.r_index[2] = r_index >> 16;
3847 srel.r_index[1] = r_index >> 8;
3848 srel.r_index[0] = r_index;
3849 srel.r_type[0] =
3850 ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
3851 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
3852 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
3853 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
3854 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
3855 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
3856 }
3857 }
3858#endif
3859 rel_ptr = (void *) &srel;
252b5132 3860
116c20d2
NC		 3861 /* We have to write the addend into the object file, since
3862 standard a.out relocs are in place. It would be more
3863 reliable if we had the current contents of the file here,
3864 rather than assuming zeroes, but we can't read the file since
3865 it was opened using bfd_openw. */
3866 if (pr->addend != 0)
252b5132 3867 {
116c20d2
NC		 3868 bfd_size_type size;
3869 bfd_reloc_status_type r;
3870 bfd_byte *buf;
3871 bfd_boolean ok;
3872
3873 size = bfd_get_reloc_size (howto);
a50b1753 3874 buf = (bfd_byte *) bfd_zmalloc (size);
6346d5ca 3875 if (buf == NULL && size != 0)
116c20d2 3876 return FALSE;
57402f1e 3877 r = MY_relocate_contents (howto, flaginfo->output_bfd,
116c20d2
NC		 3878 (bfd_vma) pr->addend, buf);
3879 switch (r)
252b5132 3880 {
116c20d2
NC		 3881 case bfd_reloc_ok:
3882 break;
3883 default:
3884 case bfd_reloc_outofrange:
3885 abort ();
3886 case bfd_reloc_overflow:
1a72702b
AM		 3887 (*flaginfo->info->callbacks->reloc_overflow)
3888 (flaginfo->info, NULL,
3889 (p->type == bfd_section_reloc_link_order
3890 ? bfd_section_name (flaginfo->output_bfd,
3891 pr->u.section)
3892 : pr->u.name),
3893 howto->name, pr->addend, NULL, NULL, (bfd_vma) 0);
116c20d2 3894 break;
252b5132 3895 }
57402f1e 3896 ok = bfd_set_section_contents (flaginfo->output_bfd, o, (void *) buf,
116c20d2
NC		 3897 (file_ptr) p->offset, size);
3898 free (buf);
3899 if (! ok)
3900 return FALSE;
252b5132
RH		 3901 }
3902 }
116c20d2 3903 else
252b5132 3904 {
116c20d2 3905#ifdef MY_put_ext_reloc
57402f1e 3906 MY_put_ext_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset,
116c20d2
NC		 3907 howto, &erel, pr->addend);
3908#else
57402f1e 3909 PUT_WORD (flaginfo->output_bfd, p->offset, erel.r_address);
252b5132 3910
57402f1e 3911 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3912 {
3913 erel.r_index[0] = r_index >> 16;
3914 erel.r_index[1] = r_index >> 8;
3915 erel.r_index[2] = r_index;
3916 erel.r_type[0] =
3917 ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
3918 | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG));
3919 }
3920 else
3921 {
3922 erel.r_index[2] = r_index >> 16;
3923 erel.r_index[1] = r_index >> 8;
3924 erel.r_index[0] = r_index;
3925 erel.r_type[0] =
3926 (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
3927 | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
3928 }
252b5132 3929
57402f1e 3930 PUT_WORD (flaginfo->output_bfd, (bfd_vma) pr->addend, erel.r_addend);
116c20d2 3931#endif /* MY_put_ext_reloc */
252b5132 3932
116c20d2 3933 rel_ptr = (void *) &erel;
252b5132 3934 }
252b5132 3935
57402f1e
NC		 3936 amt = obj_reloc_entry_size (flaginfo->output_bfd);
3937 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
3938 || bfd_bwrite (rel_ptr, amt, flaginfo->output_bfd) != amt)
116c20d2 3939 return FALSE;
252b5132 3940
57402f1e 3941 *reloff_ptr += obj_reloc_entry_size (flaginfo->output_bfd);
252b5132 3942
116c20d2
NC		 3943 /* Assert that the relocs have not run into the symbols, and that n
3944 the text relocs have not run into the data relocs. */
57402f1e
NC		 3945 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
3946 && (reloff_ptr != &flaginfo->treloff
116c20d2 3947 || (*reloff_ptr
57402f1e 3948 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 3949
3950 return TRUE;
252b5132
RH		 3951}
3952
116c20d2 3953/* Get the section corresponding to a reloc index. */
252b5132 3954
116c20d2
NC		 3955static INLINE asection *
3956aout_reloc_index_to_section (bfd *abfd, int indx)
252b5132 3957{
116c20d2 3958 switch (indx & N_TYPE)
252b5132 3959 {
116c20d2
NC		 3960 case N_TEXT: return obj_textsec (abfd);
3961 case N_DATA: return obj_datasec (abfd);
3962 case N_BSS: return obj_bsssec (abfd);
3963 case N_ABS:
3964 case N_UNDF: return bfd_abs_section_ptr;
3965 default: abort ();
252b5132 3966 }
116c20d2 3967 return NULL;
252b5132
RH		 3968}
3969
116c20d2 3970/* Relocate an a.out section using standard a.out relocs. */
252b5132 3971
b34976b6 3972static bfd_boolean
57402f1e 3973aout_link_input_section_std (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3974 bfd *input_bfd,
3975 asection *input_section,
3976 struct reloc_std_external *relocs,
3977 bfd_size_type rel_size,
3978 bfd_byte *contents)
252b5132 3979{
116c20d2
NC		 3980 bfd_boolean (*check_dynamic_reloc)
3981 (struct bfd_link_info *, bfd *, asection *,
3982 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
3983 bfd_vma *);
252b5132 3984 bfd *output_bfd;
116c20d2
NC		 3985 bfd_boolean relocatable;
3986 struct external_nlist *syms;
252b5132 3987 char *strings;
116c20d2 3988 struct aout_link_hash_entry **sym_hashes;
252b5132 3989 int *symbol_map;
116c20d2
NC		 3990 bfd_size_type reloc_count;
3991 struct reloc_std_external *rel;
3992 struct reloc_std_external *rel_end;
252b5132 3993
57402f1e 3994 output_bfd = flaginfo->output_bfd;
116c20d2 3995 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
252b5132 3996
116c20d2
NC		 3997 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE);
3998 BFD_ASSERT (input_bfd->xvec->header_byteorder
3999 == output_bfd->xvec->header_byteorder);
252b5132 4000
0e1862bb 4001 relocatable = bfd_link_relocatable (flaginfo->info);
116c20d2
NC		 4002 syms = obj_aout_external_syms (input_bfd);
4003 strings = obj_aout_external_strings (input_bfd);
4004 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4005 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4006
4007 reloc_count = rel_size / RELOC_STD_SIZE;
4008 rel = relocs;
4009 rel_end = rel + reloc_count;
4010 for (; rel < rel_end; rel++)
252b5132 4011 {
116c20d2
NC		 4012 bfd_vma r_addr;
4013 int r_index;
4014 int r_extern;
4015 int r_pcrel;
4016 int r_baserel = 0;
4017 reloc_howto_type *howto;
4018 struct aout_link_hash_entry *h = NULL;
4019 bfd_vma relocation;
4020 bfd_reloc_status_type r;
252b5132 4021
116c20d2 4022 r_addr = GET_SWORD (input_bfd, rel->r_address);
252b5132 4023
116c20d2
NC		 4024#ifdef MY_reloc_howto
4025 howto = MY_reloc_howto (input_bfd, rel, r_index, r_extern, r_pcrel);
4026#else
4027 {
4028 int r_jmptable;
4029 int r_relative;
4030 int r_length;
4031 unsigned int howto_idx;
252b5132 4032
116c20d2
NC		 4033 if (bfd_header_big_endian (input_bfd))
4034 {
4035 r_index = (((unsigned int) rel->r_index[0] << 16)
4036 | ((unsigned int) rel->r_index[1] << 8)
4037 | rel->r_index[2]);
4038 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
4039 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
4040 r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
4041 r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
4042 r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
4043 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
4044 >> RELOC_STD_BITS_LENGTH_SH_BIG);
4045 }
4046 else
4047 {
4048 r_index = (((unsigned int) rel->r_index[2] << 16)
4049 | ((unsigned int) rel->r_index[1] << 8)
4050 | rel->r_index[0]);
4051 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
4052 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
4053 r_baserel = (0 != (rel->r_type[0]
4054 & RELOC_STD_BITS_BASEREL_LITTLE));
4055 r_jmptable= (0 != (rel->r_type[0]
4056 & RELOC_STD_BITS_JMPTABLE_LITTLE));
4057 r_relative= (0 != (rel->r_type[0]
4058 & RELOC_STD_BITS_RELATIVE_LITTLE));
4059 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
4060 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
4061 }
252b5132 4062
116c20d2
NC		 4063 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
4064 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 4065 if (howto_idx < TABLE_SIZE (howto_table_std))
4066 howto = howto_table_std + howto_idx;
4067 else
4068 howto = NULL;
116c20d2
NC		 4069 }
4070#endif
252b5132 4071
ad756e3f
AM		 4072 if (howto == NULL)
4073 {
57402f1e 4074 (*flaginfo->info->callbacks->einfo)
ad756e3f
AM		 4075 (_("%P: %B: unexpected relocation type\n"), input_bfd);
4076 bfd_set_error (bfd_error_bad_value);
4077 return FALSE;
4078 }
4079
116c20d2 4080 if (relocatable)
252b5132 4081 {
116c20d2
NC		 4082 /* We are generating a relocatable output file, and must
4083 modify the reloc accordingly. */
4084 if (r_extern)
252b5132 4085 {
116c20d2
NC		 4086 /* If we know the symbol this relocation is against,
4087 convert it into a relocation against a section. This
4088 is what the native linker does. */
4089 h = sym_hashes[r_index];
4090 if (h != NULL
4091 && (h->root.type == bfd_link_hash_defined
4092 || h->root.type == bfd_link_hash_defweak))
252b5132 4093 {
252b5132
RH		 4094 asection *output_section;
4095
116c20d2
NC		 4096 /* Change the r_extern value. */
4097 if (bfd_header_big_endian (output_bfd))
4098 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_BIG;
4099 else
4100 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE;
252b5132 4101
116c20d2
NC		 4102 /* Compute a new r_index. */
4103 output_section = h->root.u.def.section->output_section;
252b5132 4104 if (output_section == obj_textsec (output_bfd))
116c20d2 4105 r_index = N_TEXT;
252b5132 4106 else if (output_section == obj_datasec (output_bfd))
116c20d2 4107 r_index = N_DATA;
252b5132 4108 else if (output_section == obj_bsssec (output_bfd))
116c20d2 4109 r_index = N_BSS;
252b5132 4110 else
116c20d2 4111 r_index = N_ABS;
252b5132 4112
116c20d2
NC		 4113 /* Add the symbol value and the section VMA to the
4114 addend stored in the contents. */
4115 relocation = (h->root.u.def.value
4116 + output_section->vma
4117 + h->root.u.def.section->output_offset);
252b5132 4118 }
116c20d2 4119 else
252b5132 4120 {
116c20d2
NC		 4121 /* We must change r_index according to the symbol
4122 map. */
4123 r_index = symbol_map[r_index];
252b5132 4124
116c20d2 4125 if (r_index == -1)
252b5132 4126 {
116c20d2 4127 if (h != NULL)
252b5132 4128 {
116c20d2
NC		 4129 /* We decided to strip this symbol, but it
4130 turns out that we can't. Note that we
4131 lose the other and desc information here.
4132 I don't think that will ever matter for a
4133 global symbol. */
4134 if (h->indx < 0)
252b5132 4135 {
116c20d2
NC		 4136 h->indx = -2;
4137 h->written = FALSE;
7686d77d 4138 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4139 flaginfo))
116c20d2 4140 return FALSE;
252b5132 4141 }
116c20d2
NC		 4142 r_index = h->indx;
4143 }
4144 else
4145 {
4146 const char *name;
4147
4148 name = strings + GET_WORD (input_bfd,
4149 syms[r_index].e_strx);
1a72702b
AM		 4150 (*flaginfo->info->callbacks->unattached_reloc)
4151 (flaginfo->info, name,
4152 input_bfd, input_section, r_addr);
116c20d2 4153 r_index = 0;
252b5132
RH		 4154 }
4155 }
116c20d2
NC		 4156
4157 relocation = 0;
252b5132
RH		 4158 }
4159
116c20d2
NC		 4160 /* Write out the new r_index value. */
4161 if (bfd_header_big_endian (output_bfd))
252b5132 4162 {
116c20d2
NC		 4163 rel->r_index[0] = r_index >> 16;
4164 rel->r_index[1] = r_index >> 8;
4165 rel->r_index[2] = r_index;
252b5132
RH		 4166 }
4167 else
4168 {
116c20d2
NC		 4169 rel->r_index[2] = r_index >> 16;
4170 rel->r_index[1] = r_index >> 8;
4171 rel->r_index[0] = r_index;
252b5132
RH		 4172 }
4173 }
252b5132 4174 else
116c20d2
NC		 4175 {
4176 asection *section;
252b5132 4177
116c20d2
NC		 4178 /* This is a relocation against a section. We must
4179 adjust by the amount that the section moved. */
4180 section = aout_reloc_index_to_section (input_bfd, r_index);
4181 relocation = (section->output_section->vma
4182 + section->output_offset
4183 - section->vma);
4184 }
252b5132 4185
116c20d2
NC		 4186 /* Change the address of the relocation. */
4187 PUT_WORD (output_bfd,
4188 r_addr + input_section->output_offset,
4189 rel->r_address);
252b5132 4190
116c20d2
NC		 4191 /* Adjust a PC relative relocation by removing the reference
4192 to the original address in the section and including the
4193 reference to the new address. */
4194 if (r_pcrel)
4195 relocation -= (input_section->output_section->vma
4196 + input_section->output_offset
4197 - input_section->vma);
e92d460e 4198
116c20d2
NC		 4199#ifdef MY_relocatable_reloc
4200 MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
4201#endif
252b5132 4202
116c20d2
NC		 4203 if (relocation == 0)
4204 r = bfd_reloc_ok;
4205 else
4206 r = MY_relocate_contents (howto,
4207 input_bfd, relocation,
4208 contents + r_addr);
252b5132 4209 }
116c20d2
NC		 4210 else
4211 {
4212 bfd_boolean hundef;
252b5132 4213
116c20d2
NC		 4214 /* We are generating an executable, and must do a full
4215 relocation. */
4216 hundef = FALSE;
252b5132 4217
116c20d2
NC		 4218 if (r_extern)
4219 {
4220 h = sym_hashes[r_index];
252b5132 4221
116c20d2
NC		 4222 if (h != NULL
4223 && (h->root.type == bfd_link_hash_defined
4224 || h->root.type == bfd_link_hash_defweak))
4225 {
4226 relocation = (h->root.u.def.value
4227 + h->root.u.def.section->output_section->vma
4228 + h->root.u.def.section->output_offset);
4229 }
4230 else if (h != NULL
4231 && h->root.type == bfd_link_hash_undefweak)
4232 relocation = 0;
4233 else
4234 {
4235 hundef = TRUE;
4236 relocation = 0;
4237 }
4238 }
4239 else
4240 {
4241 asection *section;
252b5132 4242
116c20d2
NC		 4243 section = aout_reloc_index_to_section (input_bfd, r_index);
4244 relocation = (section->output_section->vma
4245 + section->output_offset
4246 - section->vma);
4247 if (r_pcrel)
4248 relocation += input_section->vma;
4249 }
252b5132 4250
116c20d2
NC		 4251 if (check_dynamic_reloc != NULL)
4252 {
4253 bfd_boolean skip;
252b5132 4254
116c20d2 4255 if (! ((*check_dynamic_reloc)
57402f1e 4256 (flaginfo->info, input_bfd, input_section, h,
116c20d2
NC		 4257 (void *) rel, contents, &skip, &relocation)))
4258 return FALSE;
4259 if (skip)
4260 continue;
4261 }
252b5132 4262
116c20d2
NC		 4263 /* Now warn if a global symbol is undefined. We could not
4264 do this earlier, because check_dynamic_reloc might want
4265 to skip this reloc. */
0e1862bb 4266 if (hundef && ! bfd_link_pic (flaginfo->info) && ! r_baserel)
116c20d2
NC		 4267 {
4268 const char *name;
252b5132 4269
116c20d2
NC		 4270 if (h != NULL)
4271 name = h->root.root.string;
4272 else
4273 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4274 (*flaginfo->info->callbacks->undefined_symbol)
4275 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
116c20d2 4276 }
252b5132 4277
116c20d2
NC		 4278 r = MY_final_link_relocate (howto,
4279 input_bfd, input_section,
4280 contents, r_addr, relocation,
4281 (bfd_vma) 0);
252b5132 4282 }
252b5132 4283
116c20d2
NC		 4284 if (r != bfd_reloc_ok)
4285 {
4286 switch (r)
4287 {
4288 default:
4289 case bfd_reloc_outofrange:
4290 abort ();
4291 case bfd_reloc_overflow:
4292 {
4293 const char *name;
252b5132 4294
116c20d2
NC		 4295 if (h != NULL)
4296 name = NULL;
4297 else if (r_extern)
4298 name = strings + GET_WORD (input_bfd,
4299 syms[r_index].e_strx);
4300 else
4301 {
4302 asection *s;
252b5132 4303
116c20d2
NC		 4304 s = aout_reloc_index_to_section (input_bfd, r_index);
4305 name = bfd_section_name (input_bfd, s);
4306 }
1a72702b
AM		 4307 (*flaginfo->info->callbacks->reloc_overflow)
4308 (flaginfo->info, (h ? &h->root : NULL), name, howto->name,
4309 (bfd_vma) 0, input_bfd, input_section, r_addr);
116c20d2
NC		 4310 }
4311 break;
4312 }
4313 }
252b5132
RH		 4314 }
4315
b34976b6 4316 return TRUE;
252b5132
RH		 4317}
4318
116c20d2 4319/* Relocate an a.out section using extended a.out relocs. */
252b5132 4320
b34976b6 4321static bfd_boolean
57402f1e 4322aout_link_input_section_ext (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4323 bfd *input_bfd,
4324 asection *input_section,
4325 struct reloc_ext_external *relocs,
4326 bfd_size_type rel_size,
4327 bfd_byte *contents)
252b5132 4328{
b34976b6 4329 bfd_boolean (*check_dynamic_reloc)
116c20d2
NC		 4330 (struct bfd_link_info *, bfd *, asection *,
4331 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
4332 bfd_vma *);
252b5132 4333 bfd *output_bfd;
1049f94e 4334 bfd_boolean relocatable;
252b5132
RH		 4335 struct external_nlist *syms;
4336 char *strings;
4337 struct aout_link_hash_entry **sym_hashes;
4338 int *symbol_map;
4339 bfd_size_type reloc_count;
116c20d2
NC		 4340 struct reloc_ext_external *rel;
4341 struct reloc_ext_external *rel_end;
252b5132 4342
57402f1e 4343 output_bfd = flaginfo->output_bfd;
252b5132
RH		 4344 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
4345
116c20d2 4346 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_EXT_SIZE);
252b5132
RH		 4347 BFD_ASSERT (input_bfd->xvec->header_byteorder
4348 == output_bfd->xvec->header_byteorder);
4349
0e1862bb 4350 relocatable = bfd_link_relocatable (flaginfo->info);
252b5132
RH		 4351 syms = obj_aout_external_syms (input_bfd);
4352 strings = obj_aout_external_strings (input_bfd);
4353 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4354 symbol_map = flaginfo->symbol_map;
252b5132 4355
116c20d2 4356 reloc_count = rel_size / RELOC_EXT_SIZE;
252b5132
RH		 4357 rel = relocs;
4358 rel_end = rel + reloc_count;
4359 for (; rel < rel_end; rel++)
4360 {
4361 bfd_vma r_addr;
4362 int r_index;
4363 int r_extern;
116c20d2
NC		 4364 unsigned int r_type;
4365 bfd_vma r_addend;
252b5132 4366 struct aout_link_hash_entry *h = NULL;
116c20d2 4367 asection *r_section = NULL;
252b5132 4368 bfd_vma relocation;
252b5132
RH		 4369
4370 r_addr = GET_SWORD (input_bfd, rel->r_address);
4371
116c20d2
NC		 4372 if (bfd_header_big_endian (input_bfd))
4373 {
4374 r_index = (((unsigned int) rel->r_index[0] << 16)
4375 | ((unsigned int) rel->r_index[1] << 8)
4376 | rel->r_index[2]);
4377 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
4378 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
4379 >> RELOC_EXT_BITS_TYPE_SH_BIG);
4380 }
4381 else
4382 {
4383 r_index = (((unsigned int) rel->r_index[2] << 16)
4384 | ((unsigned int) rel->r_index[1] << 8)
4385 | rel->r_index[0]);
4386 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
4387 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
4388 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
4389 }
252b5132 4390
116c20d2 4391 r_addend = GET_SWORD (input_bfd, rel->r_addend);
252b5132 4392
ad756e3f
AM		 4393 if (r_type >= TABLE_SIZE (howto_table_ext))
4394 {
57402f1e 4395 (*flaginfo->info->callbacks->einfo)
ad756e3f
AM		 4396 (_("%P: %B: unexpected relocation type\n"), input_bfd);
4397 bfd_set_error (bfd_error_bad_value);
4398 return FALSE;
4399 }
252b5132 4400
1049f94e 4401 if (relocatable)
252b5132 4402 {
1049f94e 4403 /* We are generating a relocatable output file, and must
252b5132 4404 modify the reloc accordingly. */
116c20d2
NC		 4405 if (r_extern
4406 || r_type == (unsigned int) RELOC_BASE10
4407 || r_type == (unsigned int) RELOC_BASE13
4408 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 4409 {
4410 /* If we know the symbol this relocation is against,
4411 convert it into a relocation against a section. This
4412 is what the native linker does. */
116c20d2
NC		 4413 if (r_type == (unsigned int) RELOC_BASE10
4414 || r_type == (unsigned int) RELOC_BASE13
4415 || r_type == (unsigned int) RELOC_BASE22)
4416 h = NULL;
4417 else
4418 h = sym_hashes[r_index];
4419 if (h != NULL
252b5132
RH		 4420 && (h->root.type == bfd_link_hash_defined
4421 || h->root.type == bfd_link_hash_defweak))
4422 {
4423 asection *output_section;
4424
4425 /* Change the r_extern value. */
4426 if (bfd_header_big_endian (output_bfd))
116c20d2 4427 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_BIG;
252b5132 4428 else
116c20d2 4429 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE;
252b5132
RH		 4430
4431 /* Compute a new r_index. */
4432 output_section = h->root.u.def.section->output_section;
4433 if (output_section == obj_textsec (output_bfd))
4434 r_index = N_TEXT;
4435 else if (output_section == obj_datasec (output_bfd))
4436 r_index = N_DATA;
4437 else if (output_section == obj_bsssec (output_bfd))
4438 r_index = N_BSS;
4439 else
4440 r_index = N_ABS;
4441
4442 /* Add the symbol value and the section VMA to the
116c20d2 4443 addend. */
252b5132
RH		 4444 relocation = (h->root.u.def.value
4445 + output_section->vma
4446 + h->root.u.def.section->output_offset);
116c20d2
NC		 4447
4448 /* Now RELOCATION is the VMA of the final
4449 destination. If this is a PC relative reloc,
4450 then ADDEND is the negative of the source VMA.
4451 We want to set ADDEND to the difference between
4452 the destination VMA and the source VMA, which
4453 means we must adjust RELOCATION by the change in
4454 the source VMA. This is done below. */
252b5132
RH		 4455 }
4456 else
4457 {
4458 /* We must change r_index according to the symbol
4459 map. */
4460 r_index = symbol_map[r_index];
4461
4462 if (r_index == -1)
4463 {
4464 if (h != NULL)
4465 {
4466 /* We decided to strip this symbol, but it
4467 turns out that we can't. Note that we
4468 lose the other and desc information here.
4469 I don't think that will ever matter for a
4470 global symbol. */
4471 if (h->indx < 0)
4472 {
4473 h->indx = -2;
b34976b6 4474 h->written = FALSE;
7686d77d 4475 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4476 flaginfo))
b34976b6 4477 return FALSE;
252b5132
RH		 4478 }
4479 r_index = h->indx;
4480 }
4481 else
4482 {
4483 const char *name;
4484
4485 name = strings + GET_WORD (input_bfd,
4486 syms[r_index].e_strx);
1a72702b
AM		 4487 (*flaginfo->info->callbacks->unattached_reloc)
4488 (flaginfo->info, name,
4489 input_bfd, input_section, r_addr);
252b5132
RH		 4490 r_index = 0;
4491 }
4492 }
4493
4494 relocation = 0;
116c20d2
NC		 4495
4496 /* If this is a PC relative reloc, then the addend
4497 is the negative of the source VMA. We must
4498 adjust it by the change in the source VMA. This
4499 is done below. */
252b5132
RH		 4500 }
4501
4502 /* Write out the new r_index value. */
4503 if (bfd_header_big_endian (output_bfd))
4504 {
4505 rel->r_index[0] = r_index >> 16;
4506 rel->r_index[1] = r_index >> 8;
4507 rel->r_index[2] = r_index;
4508 }
4509 else
4510 {
4511 rel->r_index[2] = r_index >> 16;
4512 rel->r_index[1] = r_index >> 8;
4513 rel->r_index[0] = r_index;
4514 }
4515 }
4516 else
4517 {
252b5132
RH		 4518 /* This is a relocation against a section. We must
4519 adjust by the amount that the section moved. */
116c20d2
NC		 4520 r_section = aout_reloc_index_to_section (input_bfd, r_index);
4521 relocation = (r_section->output_section->vma
4522 + r_section->output_offset
4523 - r_section->vma);
252b5132 4524
116c20d2
NC		 4525 /* If this is a PC relative reloc, then the addend is
4526 the difference in VMA between the destination and the
4527 source. We have just adjusted for the change in VMA
4528 of the destination, so we must also adjust by the
4529 change in VMA of the source. This is done below. */
4530 }
252b5132 4531
116c20d2
NC		 4532 /* As described above, we must always adjust a PC relative
4533 reloc by the change in VMA of the source. However, if
4534 pcrel_offset is set, then the addend does not include the
4535 location within the section, in which case we don't need
4536 to adjust anything. */
4537 if (howto_table_ext[r_type].pc_relative
4538 && ! howto_table_ext[r_type].pcrel_offset)
252b5132
RH		 4539 relocation -= (input_section->output_section->vma
4540 + input_section->output_offset
4541 - input_section->vma);
4542
116c20d2
NC		 4543 /* Change the addend if necessary. */
4544 if (relocation != 0)
4545 PUT_WORD (output_bfd, r_addend + relocation, rel->r_addend);
252b5132 4546
116c20d2
NC		 4547 /* Change the address of the relocation. */
4548 PUT_WORD (output_bfd,
4549 r_addr + input_section->output_offset,
4550 rel->r_address);
252b5132
RH		 4551 }
4552 else
4553 {
b34976b6 4554 bfd_boolean hundef;
116c20d2 4555 bfd_reloc_status_type r;
252b5132
RH		 4556
4557 /* We are generating an executable, and must do a full
4558 relocation. */
b34976b6 4559 hundef = FALSE;
252b5132
RH		 4560
4561 if (r_extern)
4562 {
4563 h = sym_hashes[r_index];
4564
116c20d2 4565 if (h != NULL
252b5132
RH		 4566 && (h->root.type == bfd_link_hash_defined
4567 || h->root.type == bfd_link_hash_defweak))
4568 {
4569 relocation = (h->root.u.def.value
4570 + h->root.u.def.section->output_section->vma
4571 + h->root.u.def.section->output_offset);
4572 }
116c20d2 4573 else if (h != NULL
252b5132
RH		 4574 && h->root.type == bfd_link_hash_undefweak)
4575 relocation = 0;
4576 else
4577 {
b34976b6 4578 hundef = TRUE;
252b5132
RH		 4579 relocation = 0;
4580 }
4581 }
116c20d2
NC		 4582 else if (r_type == (unsigned int) RELOC_BASE10
4583 || r_type == (unsigned int) RELOC_BASE13
4584 || r_type == (unsigned int) RELOC_BASE22)
4585 {
4586 struct external_nlist *sym;
4587 int type;
4588
4589 /* For base relative relocs, r_index is always an index
4590 into the symbol table, even if r_extern is 0. */
4591 sym = syms + r_index;
4592 type = H_GET_8 (input_bfd, sym->e_type);
4593 if ((type & N_TYPE) == N_TEXT
4594 || type == N_WEAKT)
4595 r_section = obj_textsec (input_bfd);
4596 else if ((type & N_TYPE) == N_DATA
4597 || type == N_WEAKD)
4598 r_section = obj_datasec (input_bfd);
4599 else if ((type & N_TYPE) == N_BSS
4600 || type == N_WEAKB)
4601 r_section = obj_bsssec (input_bfd);
4602 else if ((type & N_TYPE) == N_ABS
4603 || type == N_WEAKA)
4604 r_section = bfd_abs_section_ptr;
4605 else
4606 abort ();
4607 relocation = (r_section->output_section->vma
4608 + r_section->output_offset
4609 + (GET_WORD (input_bfd, sym->e_value)
4610 - r_section->vma));
4611 }
252b5132
RH		 4612 else
4613 {
116c20d2 4614 r_section = aout_reloc_index_to_section (input_bfd, r_index);
252b5132 4615
116c20d2
NC		 4616 /* If this is a PC relative reloc, then R_ADDEND is the
4617 difference between the two vmas, or
4618 old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
4619 where
4620 old_dest_sec == section->vma
4621 and
4622 old_src_sec == input_section->vma
4623 and
4624 old_src_off == r_addr
4625
4626 _bfd_final_link_relocate expects RELOCATION +
4627 R_ADDEND to be the VMA of the destination minus
4628 r_addr (the minus r_addr is because this relocation
4629 is not pcrel_offset, which is a bit confusing and
4630 should, perhaps, be changed), or
4631 new_dest_sec
4632 where
4633 new_dest_sec == output_section->vma + output_offset
4634 We arrange for this to happen by setting RELOCATION to
4635 new_dest_sec + old_src_sec - old_dest_sec
4636
4637 If this is not a PC relative reloc, then R_ADDEND is
4638 simply the VMA of the destination, so we set
4639 RELOCATION to the change in the destination VMA, or
4640 new_dest_sec - old_dest_sec
4641 */
4642 relocation = (r_section->output_section->vma
4643 + r_section->output_offset
4644 - r_section->vma);
4645 if (howto_table_ext[r_type].pc_relative)
252b5132
RH		 4646 relocation += input_section->vma;
4647 }
4648
4649 if (check_dynamic_reloc != NULL)
4650 {
b34976b6 4651 bfd_boolean skip;
252b5132
RH		 4652
4653 if (! ((*check_dynamic_reloc)
57402f1e 4654 (flaginfo->info, input_bfd, input_section, h,
116c20d2 4655 (void *) rel, contents, &skip, &relocation)))
b34976b6 4656 return FALSE;
252b5132
RH		 4657 if (skip)
4658 continue;
4659 }
4660
4661 /* Now warn if a global symbol is undefined. We could not
4662 do this earlier, because check_dynamic_reloc might want
4663 to skip this reloc. */
116c20d2 4664 if (hundef
0e1862bb 4665 && ! bfd_link_pic (flaginfo->info)
116c20d2
NC		 4666 && r_type != (unsigned int) RELOC_BASE10
4667 && r_type != (unsigned int) RELOC_BASE13
4668 && r_type != (unsigned int) RELOC_BASE22)
252b5132
RH		 4669 {
4670 const char *name;
4671
4672 if (h != NULL)
4673 name = h->root.root.string;
4674 else
4675 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4676 (*flaginfo->info->callbacks->undefined_symbol)
4677 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
252b5132
RH		 4678 }
4679
116c20d2
NC		 4680 if (r_type != (unsigned int) RELOC_SPARC_REV32)
4681 r = MY_final_link_relocate (howto_table_ext + r_type,
4682 input_bfd, input_section,
4683 contents, r_addr, relocation,
4684 r_addend);
4685 else
252b5132 4686 {
116c20d2 4687 bfd_vma x;
252b5132 4688
116c20d2
NC		 4689 x = bfd_get_32 (input_bfd, contents + r_addr);
4690 x = x + relocation + r_addend;
4691 bfd_putl32 (/*input_bfd,*/ x, contents + r_addr);
4692 r = bfd_reloc_ok;
4693 }
4694
4695 if (r != bfd_reloc_ok)
4696 {
4697 switch (r)
4698 {
4699 default:
4700 case bfd_reloc_outofrange:
4701 abort ();
4702 case bfd_reloc_overflow:
252b5132 4703 {
116c20d2 4704 const char *name;
252b5132 4705
116c20d2
NC		 4706 if (h != NULL)
4707 name = NULL;
4708 else if (r_extern
4709 || r_type == (unsigned int) RELOC_BASE10
4710 || r_type == (unsigned int) RELOC_BASE13
4711 || r_type == (unsigned int) RELOC_BASE22)
4712 name = strings + GET_WORD (input_bfd,
4713 syms[r_index].e_strx);
4714 else
4715 {
4716 asection *s;
4717
4718 s = aout_reloc_index_to_section (input_bfd, r_index);
4719 name = bfd_section_name (input_bfd, s);
4720 }
1a72702b
AM		 4721 (*flaginfo->info->callbacks->reloc_overflow)
4722 (flaginfo->info, (h ? &h->root : NULL), name,
4723 howto_table_ext[r_type].name,
4724 r_addend, input_bfd, input_section, r_addr);
252b5132 4725 }
116c20d2
NC		 4726 break;
4727 }
252b5132
RH		 4728 }
4729 }
4730 }
4731
b34976b6 4732 return TRUE;
252b5132
RH		 4733}
4734
116c20d2
NC		 4735/* Link an a.out section into the output file. */
4736
4737static bfd_boolean
57402f1e 4738aout_link_input_section (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4739 bfd *input_bfd,
4740 asection *input_section,
4741 file_ptr *reloff_ptr,
4742 bfd_size_type rel_size)
4743{
4744 bfd_size_type input_size;
4745 void * relocs;
4746
4747 /* Get the section contents. */
4748 input_size = input_section->size;
4749 if (! bfd_get_section_contents (input_bfd, input_section,
57402f1e 4750 (void *) flaginfo->contents,
116c20d2
NC		 4751 (file_ptr) 0, input_size))
4752 return FALSE;
4753
4754 /* Read in the relocs if we haven't already done it. */
4755 if (aout_section_data (input_section) != NULL
4756 && aout_section_data (input_section)->relocs != NULL)
4757 relocs = aout_section_data (input_section)->relocs;
4758 else
4759 {
57402f1e 4760 relocs = flaginfo->relocs;
116c20d2
NC		 4761 if (rel_size > 0)
4762 {
4763 if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
4764 || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
4765 return FALSE;
4766 }
4767 }
4768
4769 /* Relocate the section contents. */
4770 if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE)
4771 {
57402f1e 4772 if (! aout_link_input_section_std (flaginfo, input_bfd, input_section,
116c20d2 4773 (struct reloc_std_external *) relocs,
57402f1e 4774 rel_size, flaginfo->contents))
116c20d2
NC		 4775 return FALSE;
4776 }
4777 else
4778 {
57402f1e 4779 if (! aout_link_input_section_ext (flaginfo, input_bfd, input_section,
116c20d2 4780 (struct reloc_ext_external *) relocs,
57402f1e 4781 rel_size, flaginfo->contents))
116c20d2
NC		 4782 return FALSE;
4783 }
4784
4785 /* Write out the section contents. */
57402f1e 4786 if (! bfd_set_section_contents (flaginfo->output_bfd,
116c20d2 4787 input_section->output_section,
57402f1e 4788 (void *) flaginfo->contents,
116c20d2
NC		 4789 (file_ptr) input_section->output_offset,
4790 input_size))
4791 return FALSE;
4792
4793 /* If we are producing relocatable output, the relocs were
4794 modified, and we now write them out. */
0e1862bb 4795 if (bfd_link_relocatable (flaginfo->info) && rel_size > 0)
116c20d2 4796 {
57402f1e 4797 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
116c20d2 4798 return FALSE;
57402f1e 4799 if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size)
116c20d2
NC		 4800 return FALSE;
4801 *reloff_ptr += rel_size;
4802
4803 /* Assert that the relocs have not run into the symbols, and
4804 that if these are the text relocs they have not run into the
4805 data relocs. */
57402f1e
NC		 4806 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
4807 && (reloff_ptr != &flaginfo->treloff
116c20d2 4808 || (*reloff_ptr
57402f1e 4809 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 4810 }
4811
4812 return TRUE;
4813}
4814
4815/* Adjust and write out the symbols for an a.out file. Set the new
4816 symbol indices into a symbol_map. */
252b5132 4817
b34976b6 4818static bfd_boolean
57402f1e 4819aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd)
252b5132 4820{
252b5132 4821 bfd *output_bfd;
116c20d2 4822 bfd_size_type sym_count;
252b5132 4823 char *strings;
116c20d2
NC		 4824 enum bfd_link_strip strip;
4825 enum bfd_link_discard discard;
4826 struct external_nlist *outsym;
4827 bfd_size_type strtab_index;
4828 struct external_nlist *sym;
4829 struct external_nlist *sym_end;
4830 struct aout_link_hash_entry **sym_hash;
252b5132 4831 int *symbol_map;
116c20d2
NC		 4832 bfd_boolean pass;
4833 bfd_boolean skip_next;
252b5132 4834
57402f1e 4835 output_bfd = flaginfo->output_bfd;
116c20d2
NC		 4836 sym_count = obj_aout_external_sym_count (input_bfd);
4837 strings = obj_aout_external_strings (input_bfd);
57402f1e
NC		 4838 strip = flaginfo->info->strip;
4839 discard = flaginfo->info->discard;
4840 outsym = flaginfo->output_syms;
252b5132 4841
116c20d2
NC		 4842 /* First write out a symbol for this object file, unless we are
4843 discarding such symbols. */
4844 if (strip != strip_all
4845 && (strip != strip_some
57402f1e 4846 || bfd_hash_lookup (flaginfo->info->keep_hash, input_bfd->filename,
116c20d2
NC		 4847 FALSE, FALSE) != NULL)
4848 && discard != discard_all)
4849 {
4850 H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
4851 H_PUT_8 (output_bfd, 0, outsym->e_other);
4852 H_PUT_16 (output_bfd, 0, outsym->e_desc);
57402f1e 4853 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 4854 input_bfd->filename, FALSE);
4855 if (strtab_index == (bfd_size_type) -1)
4856 return FALSE;
4857 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
4858 PUT_WORD (output_bfd,
4859 (bfd_get_section_vma (output_bfd,
4860 obj_textsec (input_bfd)->output_section)
4861 + obj_textsec (input_bfd)->output_offset),
4862 outsym->e_value);
4863 ++obj_aout_external_sym_count (output_bfd);
4864 ++outsym;
4865 }
252b5132 4866
116c20d2
NC		 4867 pass = FALSE;
4868 skip_next = FALSE;
4869 sym = obj_aout_external_syms (input_bfd);
4870 sym_end = sym + sym_count;
4871 sym_hash = obj_aout_sym_hashes (input_bfd);
57402f1e 4872 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4873 memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map);
4874 for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
252b5132 4875 {
116c20d2
NC		 4876 const char *name;
4877 int type;
4878 struct aout_link_hash_entry *h;
4879 bfd_boolean skip;
4880 asection *symsec;
4881 bfd_vma val = 0;
4882 bfd_boolean copy;
252b5132 4883
116c20d2
NC		 4884 /* We set *symbol_map to 0 above for all symbols. If it has
4885 already been set to -1 for this symbol, it means that we are
4886 discarding it because it appears in a duplicate header file.
4887 See the N_BINCL code below. */
4888 if (*symbol_map == -1)
4889 continue;
252b5132 4890
116c20d2
NC		 4891 /* Initialize *symbol_map to -1, which means that the symbol was
4892 not copied into the output file. We will change it later if
4893 we do copy the symbol over. */
4894 *symbol_map = -1;
4895
4896 type = H_GET_8 (input_bfd, sym->e_type);
4897 name = strings + GET_WORD (input_bfd, sym->e_strx);
4898
4899 h = NULL;
4900
4901 if (pass)
252b5132 4902 {
116c20d2
NC		 4903 /* Pass this symbol through. It is the target of an
4904 indirect or warning symbol. */
4905 val = GET_WORD (input_bfd, sym->e_value);
4906 pass = FALSE;
252b5132 4907 }
116c20d2 4908 else if (skip_next)
252b5132 4909 {
116c20d2
NC		 4910 /* Skip this symbol, which is the target of an indirect
4911 symbol that we have changed to no longer be an indirect
4912 symbol. */
4913 skip_next = FALSE;
4914 continue;
252b5132 4915 }
116c20d2
NC		 4916 else
4917 {
4918 struct aout_link_hash_entry *hresolve;
252b5132 4919
116c20d2
NC		 4920 /* We have saved the hash table entry for this symbol, if
4921 there is one. Note that we could just look it up again
4922 in the hash table, provided we first check that it is an
4923 external symbol. */
4924 h = *sym_hash;
252b5132 4925
116c20d2
NC		 4926 /* Use the name from the hash table, in case the symbol was
4927 wrapped. */
4928 if (h != NULL
4929 && h->root.type != bfd_link_hash_warning)
4930 name = h->root.root.string;
252b5132 4931
116c20d2
NC		 4932 /* If this is an indirect or warning symbol, then change
4933 hresolve to the base symbol. We also change *sym_hash so
4934 that the relocation routines relocate against the real
4935 symbol. */
4936 hresolve = h;
4937 if (h != (struct aout_link_hash_entry *) NULL
4938 && (h->root.type == bfd_link_hash_indirect
4939 || h->root.type == bfd_link_hash_warning))
252b5132 4940 {
116c20d2
NC		 4941 hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
4942 while (hresolve->root.type == bfd_link_hash_indirect
4943 || hresolve->root.type == bfd_link_hash_warning)
4944 hresolve = ((struct aout_link_hash_entry *)
4945 hresolve->root.u.i.link);
4946 *sym_hash = hresolve;
4947 }
4948
4949 /* If the symbol has already been written out, skip it. */
4950 if (h != NULL
4951 && h->written)
4952 {
4953 if ((type & N_TYPE) == N_INDR
4954 || type == N_WARNING)
4955 skip_next = TRUE;
4956 *symbol_map = h->indx;
4957 continue;
4958 }
4959
4960 /* See if we are stripping this symbol. */
4961 skip = FALSE;
4962 switch (strip)
4963 {
4964 case strip_none:
4965 break;
4966 case strip_debugger:
4967 if ((type & N_STAB) != 0)
4968 skip = TRUE;
4969 break;
4970 case strip_some:
57402f1e 4971 if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE)
116c20d2
NC		 4972 == NULL)
4973 skip = TRUE;
4974 break;
4975 case strip_all:
4976 skip = TRUE;
4977 break;
4978 }
4979 if (skip)
4980 {
4981 if (h != NULL)
4982 h->written = TRUE;
4983 continue;
4984 }
4985
4986 /* Get the value of the symbol. */
4987 if ((type & N_TYPE) == N_TEXT
4988 || type == N_WEAKT)
4989 symsec = obj_textsec (input_bfd);
4990 else if ((type & N_TYPE) == N_DATA
4991 || type == N_WEAKD)
4992 symsec = obj_datasec (input_bfd);
4993 else if ((type & N_TYPE) == N_BSS
4994 || type == N_WEAKB)
4995 symsec = obj_bsssec (input_bfd);
4996 else if ((type & N_TYPE) == N_ABS
4997 || type == N_WEAKA)
4998 symsec = bfd_abs_section_ptr;
4999 else if (((type & N_TYPE) == N_INDR
5000 && (hresolve == NULL
5001 || (hresolve->root.type != bfd_link_hash_defined
5002 && hresolve->root.type != bfd_link_hash_defweak
5003 && hresolve->root.type != bfd_link_hash_common)))
5004 || type == N_WARNING)
5005 {
5006 /* Pass the next symbol through unchanged. The
5007 condition above for indirect symbols is so that if
5008 the indirect symbol was defined, we output it with
5009 the correct definition so the debugger will
5010 understand it. */
5011 pass = TRUE;
5012 val = GET_WORD (input_bfd, sym->e_value);
5013 symsec = NULL;
5014 }
5015 else if ((type & N_STAB) != 0)
5016 {
5017 val = GET_WORD (input_bfd, sym->e_value);
5018 symsec = NULL;
5019 }
5020 else
5021 {
5022 /* If we get here with an indirect symbol, it means that
5023 we are outputting it with a real definition. In such
5024 a case we do not want to output the next symbol,
5025 which is the target of the indirection. */
5026 if ((type & N_TYPE) == N_INDR)
5027 skip_next = TRUE;
5028
5029 symsec = NULL;
5030
5031 /* We need to get the value from the hash table. We use
5032 hresolve so that if we have defined an indirect
5033 symbol we output the final definition. */
5034 if (h == NULL)
5035 {
5036 switch (type & N_TYPE)
5037 {
5038 case N_SETT:
5039 symsec = obj_textsec (input_bfd);
5040 break;
5041 case N_SETD:
5042 symsec = obj_datasec (input_bfd);
5043 break;
5044 case N_SETB:
5045 symsec = obj_bsssec (input_bfd);
5046 break;
5047 case N_SETA:
5048 symsec = bfd_abs_section_ptr;
5049 break;
5050 default:
5051 val = 0;
5052 break;
5053 }
5054 }
5055 else if (hresolve->root.type == bfd_link_hash_defined
5056 || hresolve->root.type == bfd_link_hash_defweak)
252b5132 5057 {
116c20d2 5058 asection *input_section;
252b5132
RH		 5059 asection *output_section;
5060
116c20d2
NC		 5061 /* This case usually means a common symbol which was
5062 turned into a defined symbol. */
5063 input_section = hresolve->root.u.def.section;
5064 output_section = input_section->output_section;
5065 BFD_ASSERT (bfd_is_abs_section (output_section)
5066 || output_section->owner == output_bfd);
5067 val = (hresolve->root.u.def.value
5068 + bfd_get_section_vma (output_bfd, output_section)
5069 + input_section->output_offset);
5070
5071 /* Get the correct type based on the section. If
5072 this is a constructed set, force it to be
5073 globally visible. */
5074 if (type == N_SETT
5075 || type == N_SETD
5076 || type == N_SETB
5077 || type == N_SETA)
5078 type |= N_EXT;
5079
5080 type &=~ N_TYPE;
252b5132 5081
252b5132 5082 if (output_section == obj_textsec (output_bfd))
116c20d2
NC		 5083 type |= (hresolve->root.type == bfd_link_hash_defined
5084 ? N_TEXT
5085 : N_WEAKT);
252b5132 5086 else if (output_section == obj_datasec (output_bfd))
116c20d2
NC		 5087 type |= (hresolve->root.type == bfd_link_hash_defined
5088 ? N_DATA
5089 : N_WEAKD);
252b5132 5090 else if (output_section == obj_bsssec (output_bfd))
116c20d2
NC		 5091 type |= (hresolve->root.type == bfd_link_hash_defined
5092 ? N_BSS
5093 : N_WEAKB);
252b5132 5094 else
116c20d2
NC		 5095 type |= (hresolve->root.type == bfd_link_hash_defined
5096 ? N_ABS
5097 : N_WEAKA);
5098 }
5099 else if (hresolve->root.type == bfd_link_hash_common)
5100 val = hresolve->root.u.c.size;
5101 else if (hresolve->root.type == bfd_link_hash_undefweak)
5102 {
5103 val = 0;
5104 type = N_WEAKU;
252b5132
RH		 5105 }
5106 else
116c20d2
NC		 5107 val = 0;
5108 }
5109 if (symsec != NULL)
5110 val = (symsec->output_section->vma
5111 + symsec->output_offset
5112 + (GET_WORD (input_bfd, sym->e_value)
5113 - symsec->vma));
5114
5115 /* If this is a global symbol set the written flag, and if
5116 it is a local symbol see if we should discard it. */
5117 if (h != NULL)
5118 {
5119 h->written = TRUE;
5120 h->indx = obj_aout_external_sym_count (output_bfd);
5121 }
5122 else if ((type & N_TYPE) != N_SETT
5123 && (type & N_TYPE) != N_SETD
5124 && (type & N_TYPE) != N_SETB
5125 && (type & N_TYPE) != N_SETA)
5126 {
5127 switch (discard)
252b5132 5128 {
116c20d2
NC		 5129 case discard_none:
5130 case discard_sec_merge:
5131 break;
5132 case discard_l:
5133 if ((type & N_STAB) == 0
5134 && bfd_is_local_label_name (input_bfd, name))
5135 skip = TRUE;
5136 break;
5137 case discard_all:
5138 skip = TRUE;
5139 break;
5140 }
5141 if (skip)
5142 {
5143 pass = FALSE;
5144 continue;
5145 }
5146 }
252b5132 5147
116c20d2
NC		 5148 /* An N_BINCL symbol indicates the start of the stabs
5149 entries for a header file. We need to scan ahead to the
5150 next N_EINCL symbol, ignoring nesting, adding up all the
5151 characters in the symbol names, not including the file
5152 numbers in types (the first number after an open
5153 parenthesis). */
5154 if (type == (int) N_BINCL)
5155 {
5156 struct external_nlist *incl_sym;
5157 int nest;
5158 struct aout_link_includes_entry *incl_entry;
5159 struct aout_link_includes_totals *t;
5160
5161 val = 0;
5162 nest = 0;
5163 for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
5164 {
5165 int incl_type;
5166
5167 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5168 if (incl_type == (int) N_EINCL)
252b5132 5169 {
116c20d2
NC		 5170 if (nest == 0)
5171 break;
5172 --nest;
5173 }
5174 else if (incl_type == (int) N_BINCL)
5175 ++nest;
5176 else if (nest == 0)
5177 {
5178 const char *s;
5179
5180 s = strings + GET_WORD (input_bfd, incl_sym->e_strx);
5181 for (; *s != '\0'; s++)
252b5132 5182 {
116c20d2
NC		 5183 val += *s;
5184 if (*s == '(')
252b5132 5185 {
116c20d2
NC		 5186 /* Skip the file number. */
5187 ++s;
5188 while (ISDIGIT (*s))
5189 ++s;
5190 --s;
252b5132 5191 }
252b5132 5192 }
116c20d2
NC		 5193 }
5194 }
252b5132 5195
116c20d2
NC		 5196 /* If we have already included a header file with the
5197 same value, then replace this one with an N_EXCL
5198 symbol. */
57402f1e
NC		 5199 copy = (bfd_boolean) (! flaginfo->info->keep_memory);
5200 incl_entry = aout_link_includes_lookup (&flaginfo->includes,
116c20d2
NC		 5201 name, TRUE, copy);
5202 if (incl_entry == NULL)
5203 return FALSE;
5204 for (t = incl_entry->totals; t != NULL; t = t->next)
5205 if (t->total == val)
5206 break;
5207 if (t == NULL)
5208 {
5209 /* This is the first time we have seen this header
5210 file with this set of stabs strings. */
a50b1753 5211 t = (struct aout_link_includes_totals *)
57402f1e 5212 bfd_hash_allocate (&flaginfo->includes.root,
116c20d2
NC		 5213 sizeof *t);
5214 if (t == NULL)
5215 return FALSE;
5216 t->total = val;
5217 t->next = incl_entry->totals;
5218 incl_entry->totals = t;
5219 }
5220 else
5221 {
5222 int *incl_map;
5223
5224 /* This is a duplicate header file. We must change
5225 it to be an N_EXCL entry, and mark all the
5226 included symbols to prevent outputting them. */
5227 type = (int) N_EXCL;
5228
5229 nest = 0;
5230 for (incl_sym = sym + 1, incl_map = symbol_map + 1;
5231 incl_sym < sym_end;
5232 incl_sym++, incl_map++)
5233 {
5234 int incl_type;
5235
5236 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5237 if (incl_type == (int) N_EINCL)
5238 {
5239 if (nest == 0)
5240 {
5241 *incl_map = -1;
5242 break;
5243 }
5244 --nest;
252b5132 5245 }
116c20d2
NC		 5246 else if (incl_type == (int) N_BINCL)
5247 ++nest;
5248 else if (nest == 0)
5249 *incl_map = -1;
252b5132 5250 }
252b5132
RH		 5251 }
5252 }
116c20d2
NC		 5253 }
5254
5255 /* Copy this symbol into the list of symbols we are going to
5256 write out. */
5257 H_PUT_8 (output_bfd, type, outsym->e_type);
5258 H_PUT_8 (output_bfd, H_GET_8 (input_bfd, sym->e_other), outsym->e_other);
5259 H_PUT_16 (output_bfd, H_GET_16 (input_bfd, sym->e_desc), outsym->e_desc);
5260 copy = FALSE;
57402f1e 5261 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5262 {
5263 /* name points into a string table which we are going to
5264 free. If there is a hash table entry, use that string.
5265 Otherwise, copy name into memory. */
5266 if (h != NULL)
5267 name = h->root.root.string;
252b5132 5268 else
116c20d2
NC		 5269 copy = TRUE;
5270 }
57402f1e 5271 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 5272 name, copy);
5273 if (strtab_index == (bfd_size_type) -1)
5274 return FALSE;
5275 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
5276 PUT_WORD (output_bfd, val, outsym->e_value);
5277 *symbol_map = obj_aout_external_sym_count (output_bfd);
5278 ++obj_aout_external_sym_count (output_bfd);
5279 ++outsym;
5280 }
252b5132 5281
116c20d2 5282 /* Write out the output symbols we have just constructed. */
57402f1e 5283 if (outsym > flaginfo->output_syms)
116c20d2
NC		 5284 {
5285 bfd_size_type outsym_size;
252b5132 5286
57402f1e 5287 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0)
116c20d2 5288 return FALSE;
57402f1e 5289 outsym_size = outsym - flaginfo->output_syms;
116c20d2 5290 outsym_size *= EXTERNAL_NLIST_SIZE;
57402f1e 5291 if (bfd_bwrite ((void *) flaginfo->output_syms, outsym_size, output_bfd)
116c20d2
NC		 5292 != outsym_size)
5293 return FALSE;
57402f1e 5294 flaginfo->symoff += outsym_size;
116c20d2 5295 }
252b5132 5296
116c20d2
NC		 5297 return TRUE;
5298}
252b5132 5299
116c20d2 5300/* Link an a.out input BFD into the output file. */
252b5132 5301
116c20d2 5302static bfd_boolean
57402f1e 5303aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd)
116c20d2 5304{
116c20d2 5305 BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
252b5132 5306
116c20d2
NC		 5307 /* If this is a dynamic object, it may need special handling. */
5308 if ((input_bfd->flags & DYNAMIC) != 0
5309 && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
5310 return ((*aout_backend_info (input_bfd)->link_dynamic_object)
57402f1e 5311 (flaginfo->info, input_bfd));
252b5132 5312
116c20d2 5313 /* Get the symbols. We probably have them already, unless
57402f1e 5314 flaginfo->info->keep_memory is FALSE. */
116c20d2
NC		 5315 if (! aout_get_external_symbols (input_bfd))
5316 return FALSE;
252b5132 5317
116c20d2 5318 /* Write out the symbols and get a map of the new indices. The map
57402f1e
NC		 5319 is placed into flaginfo->symbol_map. */
5320 if (! aout_link_write_symbols (flaginfo, input_bfd))
116c20d2 5321 return FALSE;
252b5132 5322
116c20d2
NC		 5323 /* Relocate and write out the sections. These functions use the
5324 symbol map created by aout_link_write_symbols. The linker_mark
5325 field will be set if these sections are to be included in the
5326 link, which will normally be the case. */
5327 if (obj_textsec (input_bfd)->linker_mark)
5328 {
57402f1e 5329 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5330 obj_textsec (input_bfd),
57402f1e 5331 &flaginfo->treloff,
116c20d2
NC		 5332 exec_hdr (input_bfd)->a_trsize))
5333 return FALSE;
5334 }
5335 if (obj_datasec (input_bfd)->linker_mark)
5336 {
57402f1e 5337 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5338 obj_datasec (input_bfd),
57402f1e 5339 &flaginfo->dreloff,
116c20d2
NC		 5340 exec_hdr (input_bfd)->a_drsize))
5341 return FALSE;
5342 }
5343
5344 /* If we are not keeping memory, we don't need the symbols any
5345 longer. We still need them if we are keeping memory, because the
5346 strings in the hash table point into them. */
57402f1e 5347 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5348 {
5349 if (! aout_link_free_symbols (input_bfd))
5350 return FALSE;
5351 }
5352
5353 return TRUE;
5354}
5355
5356/* Do the final link step. This is called on the output BFD. The
5357 INFO structure should point to a list of BFDs linked through the
c72f2fb2 5358 link.next field which can be used to find each BFD which takes part
116c20d2
NC		 5359 in the output. Also, each section in ABFD should point to a list
5360 of bfd_link_order structures which list all the input sections for
5361 the output section. */
5362
5363bfd_boolean
5364NAME (aout, final_link) (bfd *abfd,
5365 struct bfd_link_info *info,
5366 void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *))
5367{
5368 struct aout_final_link_info aout_info;
5369 bfd_boolean includes_hash_initialized = FALSE;
5370 bfd *sub;
5371 bfd_size_type trsize, drsize;
5372 bfd_size_type max_contents_size;
5373 bfd_size_type max_relocs_size;
5374 bfd_size_type max_sym_count;
116c20d2
NC		 5375 struct bfd_link_order *p;
5376 asection *o;
5377 bfd_boolean have_link_order_relocs;
5378
0e1862bb 5379 if (bfd_link_pic (info))
116c20d2
NC		 5380 abfd->flags |= DYNAMIC;
5381
5382 aout_info.info = info;
5383 aout_info.output_bfd = abfd;
5384 aout_info.contents = NULL;
5385 aout_info.relocs = NULL;
5386 aout_info.symbol_map = NULL;
5387 aout_info.output_syms = NULL;
252b5132 5388
66eb6687
AM		 5389 if (!bfd_hash_table_init_n (&aout_info.includes.root,
5390 aout_link_includes_newfunc,
5391 sizeof (struct aout_link_includes_entry),
5392 251))
116c20d2
NC		 5393 goto error_return;
5394 includes_hash_initialized = TRUE;
252b5132 5395
116c20d2
NC		 5396 /* Figure out the largest section size. Also, if generating
5397 relocatable output, count the relocs. */
5398 trsize = 0;
5399 drsize = 0;
5400 max_contents_size = 0;
5401 max_relocs_size = 0;
5402 max_sym_count = 0;
c72f2fb2 5403 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2
NC		 5404 {
5405 bfd_size_type sz;
252b5132 5406
0e1862bb 5407 if (bfd_link_relocatable (info))
116c20d2
NC		 5408 {
5409 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
252b5132 5410 {
116c20d2
NC		 5411 trsize += exec_hdr (sub)->a_trsize;
5412 drsize += exec_hdr (sub)->a_drsize;
252b5132 5413 }
252b5132
RH		 5414 else
5415 {
116c20d2
NC		 5416 /* FIXME: We need to identify the .text and .data sections
5417 and call get_reloc_upper_bound and canonicalize_reloc to
5418 work out the number of relocs needed, and then multiply
5419 by the reloc size. */
4eca0228 5420 _bfd_error_handler
695344c0 5421 /* xgettext:c-format */
116c20d2
NC		 5422 (_("%s: relocatable link from %s to %s not supported"),
5423 bfd_get_filename (abfd),
5424 sub->xvec->name, abfd->xvec->name);
5425 bfd_set_error (bfd_error_invalid_operation);
5426 goto error_return;
252b5132 5427 }
116c20d2 5428 }
252b5132 5429
116c20d2
NC		 5430 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
5431 {
5432 sz = obj_textsec (sub)->size;
5433 if (sz > max_contents_size)
5434 max_contents_size = sz;
5435 sz = obj_datasec (sub)->size;
5436 if (sz > max_contents_size)
5437 max_contents_size = sz;
252b5132 5438
116c20d2
NC		 5439 sz = exec_hdr (sub)->a_trsize;
5440 if (sz > max_relocs_size)
5441 max_relocs_size = sz;
5442 sz = exec_hdr (sub)->a_drsize;
5443 if (sz > max_relocs_size)
5444 max_relocs_size = sz;
252b5132 5445
116c20d2
NC		 5446 sz = obj_aout_external_sym_count (sub);
5447 if (sz > max_sym_count)
5448 max_sym_count = sz;
252b5132
RH		 5449 }
5450 }
5451
0e1862bb 5452 if (bfd_link_relocatable (info))
116c20d2
NC		 5453 {
5454 if (obj_textsec (abfd) != NULL)
5455 trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
8423293d 5456 ->map_head.link_order)
116c20d2
NC		 5457 * obj_reloc_entry_size (abfd));
5458 if (obj_datasec (abfd) != NULL)
5459 drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
8423293d 5460 ->map_head.link_order)
116c20d2
NC		 5461 * obj_reloc_entry_size (abfd));
5462 }
252b5132 5463
116c20d2
NC		 5464 exec_hdr (abfd)->a_trsize = trsize;
5465 exec_hdr (abfd)->a_drsize = drsize;
252b5132 5466
116c20d2 5467 exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
252b5132 5468
116c20d2
NC		 5469 /* Adjust the section sizes and vmas according to the magic number.
5470 This sets a_text, a_data and a_bss in the exec_hdr and sets the
5471 filepos for each section. */
3a8c4a5b 5472 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
116c20d2 5473 goto error_return;
252b5132 5474
116c20d2
NC		 5475 /* The relocation and symbol file positions differ among a.out
5476 targets. We are passed a callback routine from the backend
5477 specific code to handle this.
5478 FIXME: At this point we do not know how much space the symbol
5479 table will require. This will not work for any (nonstandard)
5480 a.out target that needs to know the symbol table size before it
5481 can compute the relocation file positions. This may or may not
5482 be the case for the hp300hpux target, for example. */
5483 (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
5484 &aout_info.symoff);
5485 obj_textsec (abfd)->rel_filepos = aout_info.treloff;
5486 obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
5487 obj_sym_filepos (abfd) = aout_info.symoff;
252b5132 5488
116c20d2
NC		 5489 /* We keep a count of the symbols as we output them. */
5490 obj_aout_external_sym_count (abfd) = 0;
5491
5492 /* We accumulate the string table as we write out the symbols. */
5493 aout_info.strtab = _bfd_stringtab_init ();
5494 if (aout_info.strtab == NULL)
5495 goto error_return;
5496
5497 /* Allocate buffers to hold section contents and relocs. */
a50b1753 5498 aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
116c20d2 5499 aout_info.relocs = bfd_malloc (max_relocs_size);
c38eb2a6 5500 aout_info.symbol_map = (int *) bfd_malloc (max_sym_count * sizeof (int));
a50b1753
NC		 5501 aout_info.output_syms = (struct external_nlist *)
5502 bfd_malloc ((max_sym_count + 1) * sizeof (struct external_nlist));
116c20d2
NC		 5503 if ((aout_info.contents == NULL && max_contents_size != 0)
5504 || (aout_info.relocs == NULL && max_relocs_size != 0)
5505 || (aout_info.symbol_map == NULL && max_sym_count != 0)
5506 || aout_info.output_syms == NULL)
5507 goto error_return;
5508
5509 /* If we have a symbol named __DYNAMIC, force it out now. This is
5510 required by SunOS. Doing this here rather than in sunos.c is a
5511 hack, but it's easier than exporting everything which would be
5512 needed. */
5513 {
5514 struct aout_link_hash_entry *h;
5515
5516 h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
5517 FALSE, FALSE, FALSE);
5518 if (h != NULL)
7686d77d 5519 aout_link_write_other_symbol (&h->root.root, &aout_info);
116c20d2
NC		 5520 }
5521
5522 /* The most time efficient way to do the link would be to read all
5523 the input object files into memory and then sort out the
5524 information into the output file. Unfortunately, that will
5525 probably use too much memory. Another method would be to step
5526 through everything that composes the text section and write it
5527 out, and then everything that composes the data section and write
5528 it out, and then write out the relocs, and then write out the
5529 symbols. Unfortunately, that requires reading stuff from each
5530 input file several times, and we will not be able to keep all the
5531 input files open simultaneously, and reopening them will be slow.
5532
5533 What we do is basically process one input file at a time. We do
5534 everything we need to do with an input file once--copy over the
5535 section contents, handle the relocation information, and write
5536 out the symbols--and then we throw away the information we read
5537 from it. This approach requires a lot of lseeks of the output
5538 file, which is unfortunate but still faster than reopening a lot
5539 of files.
5540
5541 We use the output_has_begun field of the input BFDs to see
5542 whether we have already handled it. */
c72f2fb2 5543 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2 5544 sub->output_has_begun = FALSE;
252b5132 5545
116c20d2
NC		 5546 /* Mark all sections which are to be included in the link. This
5547 will normally be every section. We need to do this so that we
5548 can identify any sections which the linker has decided to not
5549 include. */
5550 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5551 {
8423293d 5552 for (p = o->map_head.link_order; p != NULL; p = p->next)
116c20d2
NC		 5553 if (p->type == bfd_indirect_link_order)
5554 p->u.indirect.section->linker_mark = TRUE;
252b5132
RH		 5555 }
5556
116c20d2
NC		 5557 have_link_order_relocs = FALSE;
5558 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5559 {
8423293d 5560 for (p = o->map_head.link_order;
116c20d2
NC		 5561 p != NULL;
5562 p = p->next)
252b5132 5563 {
116c20d2
NC		 5564 if (p->type == bfd_indirect_link_order
5565 && (bfd_get_flavour (p->u.indirect.section->owner)
5566 == bfd_target_aout_flavour))
252b5132 5567 {
116c20d2
NC		 5568 bfd *input_bfd;
5569
5570 input_bfd = p->u.indirect.section->owner;
5571 if (! input_bfd->output_has_begun)
252b5132 5572 {
116c20d2
NC		 5573 if (! aout_link_input_bfd (&aout_info, input_bfd))
5574 goto error_return;
5575 input_bfd->output_has_begun = TRUE;
252b5132 5576 }
252b5132 5577 }
116c20d2
NC		 5578 else if (p->type == bfd_section_reloc_link_order
5579 || p->type == bfd_symbol_reloc_link_order)
5580 {
5581 /* These are handled below. */
5582 have_link_order_relocs = TRUE;
5583 }
5584 else
5585 {
5586 if (! _bfd_default_link_order (abfd, info, o, p))
5587 goto error_return;
5588 }
252b5132
RH		 5589 }
5590 }
252b5132 5591
116c20d2 5592 /* Write out any symbols that we have not already written out. */
7686d77d
AM		 5593 bfd_hash_traverse (&info->hash->table,
5594 aout_link_write_other_symbol,
5595 &aout_info);
116c20d2
NC		 5596
5597 /* Now handle any relocs we were asked to create by the linker.
5598 These did not come from any input file. We must do these after
5599 we have written out all the symbols, so that we know the symbol
5600 indices to use. */
5601 if (have_link_order_relocs)
5602 {
5603 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5604 {
8423293d 5605 for (p = o->map_head.link_order;
116c20d2
NC		 5606 p != NULL;
5607 p = p->next)
5608 {
5609 if (p->type == bfd_section_reloc_link_order
5610 || p->type == bfd_symbol_reloc_link_order)
5611 {
5612 if (! aout_link_reloc_link_order (&aout_info, o, p))
5613 goto error_return;
5614 }
5615 }
252b5132 5616 }
116c20d2 5617 }
252b5132 5618
116c20d2
NC		 5619 if (aout_info.contents != NULL)
5620 {
5621 free (aout_info.contents);
5622 aout_info.contents = NULL;
5623 }
5624 if (aout_info.relocs != NULL)
5625 {
5626 free (aout_info.relocs);
5627 aout_info.relocs = NULL;
5628 }
5629 if (aout_info.symbol_map != NULL)
5630 {
5631 free (aout_info.symbol_map);
5632 aout_info.symbol_map = NULL;
5633 }
5634 if (aout_info.output_syms != NULL)
5635 {
5636 free (aout_info.output_syms);
5637 aout_info.output_syms = NULL;
5638 }
5639 if (includes_hash_initialized)
5640 {
5641 bfd_hash_table_free (&aout_info.includes.root);
5642 includes_hash_initialized = FALSE;
5643 }
252b5132 5644
116c20d2
NC		 5645 /* Finish up any dynamic linking we may be doing. */
5646 if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
5647 {
5648 if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
5649 goto error_return;
252b5132
RH		 5650 }
5651
116c20d2
NC		 5652 /* Update the header information. */
5653 abfd->symcount = obj_aout_external_sym_count (abfd);
5654 exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
5655 obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
5656 obj_textsec (abfd)->reloc_count =
5657 exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
5658 obj_datasec (abfd)->reloc_count =
5659 exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
252b5132 5660
116c20d2 5661 /* Write out the string table, unless there are no symbols. */
f6e688f7
AM		 5662 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0)
5663 goto error_return;
116c20d2
NC		 5664 if (abfd->symcount > 0)
5665 {
f6e688f7 5666 if (!emit_stringtab (abfd, aout_info.strtab))
116c20d2
NC		 5667 goto error_return;
5668 }
f6e688f7 5669 else
116c20d2 5670 {
f6e688f7 5671 bfd_byte b[BYTES_IN_WORD];
252b5132 5672
f6e688f7
AM		 5673 memset (b, 0, BYTES_IN_WORD);
5674 if (bfd_bwrite (b, (bfd_size_type) BYTES_IN_WORD, abfd) != BYTES_IN_WORD)
116c20d2
NC		 5675 goto error_return;
5676 }
252b5132 5677
b34976b6 5678 return TRUE;
116c20d2
NC		 5679
5680 error_return:
5681 if (aout_info.contents != NULL)
5682 free (aout_info.contents);
5683 if (aout_info.relocs != NULL)
5684 free (aout_info.relocs);
5685 if (aout_info.symbol_map != NULL)
5686 free (aout_info.symbol_map);
5687 if (aout_info.output_syms != NULL)
5688 free (aout_info.output_syms);
5689 if (includes_hash_initialized)
5690 bfd_hash_table_free (&aout_info.includes.root);
5691 return FALSE;
252b5132 5692}
GDB Binutils - Deliverables
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