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Fix build with GCC 4.2
[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
64517994 741 || machine == bfd_mach_sparc_v8plusm8
74d26813
L		 742 || machine == bfd_mach_sparc_v9
743 || machine == bfd_mach_sparc_v9a
4f26fb3a
JM		 744 || machine == bfd_mach_sparc_v9b
745 || machine == bfd_mach_sparc_v9c
746 || machine == bfd_mach_sparc_v9d
747 || machine == bfd_mach_sparc_v9e
748 || machine == bfd_mach_sparc_v9v
64517994
JM		 749 || machine == bfd_mach_sparc_v9m
750 || machine == bfd_mach_sparc_v9m8)
923f08ff
AM		 751 arch_flags = M_SPARC;
752 else if (machine == bfd_mach_sparc_sparclet)
753 arch_flags = M_SPARCLET;
754 break;
755
756 case bfd_arch_m68k:
757 switch (machine)
758 {
759 case 0: arch_flags = M_68010; break;
b34976b6 760 case bfd_mach_m68000: arch_flags = M_UNKNOWN; *unknown = FALSE; break;
923f08ff
AM		 761 case bfd_mach_m68010: arch_flags = M_68010; break;
762 case bfd_mach_m68020: arch_flags = M_68020; break;
763 default: arch_flags = M_UNKNOWN; break;
764 }
252b5132 765 break;
923f08ff
AM		 766
767 case bfd_arch_i386:
3b77b1d5
AM		 768 if (machine == 0
769 || machine == bfd_mach_i386_i386
770 || machine == bfd_mach_i386_i386_intel_syntax)
923f08ff 771 arch_flags = M_386;
252b5132 772 break;
923f08ff 773
923f08ff
AM		 774 case bfd_arch_arm:
775 if (machine == 0)
776 arch_flags = M_ARM;
252b5132 777 break;
252b5132 778
923f08ff
AM		 779 case bfd_arch_mips:
780 switch (machine)
781 {
782 case 0:
783 case bfd_mach_mips3000:
784 case bfd_mach_mips3900:
785 arch_flags = M_MIPS1;
786 break;
787 case bfd_mach_mips6000:
788 arch_flags = M_MIPS2;
789 break;
790 case bfd_mach_mips4000:
791 case bfd_mach_mips4010:
792 case bfd_mach_mips4100:
793 case bfd_mach_mips4300:
794 case bfd_mach_mips4400:
795 case bfd_mach_mips4600:
796 case bfd_mach_mips4650:
797 case bfd_mach_mips8000:
0d2e43ed 798 case bfd_mach_mips9000:
923f08ff
AM		 799 case bfd_mach_mips10000:
800 case bfd_mach_mips12000:
3aa3176b
TS		 801 case bfd_mach_mips14000:
802 case bfd_mach_mips16000:
923f08ff
AM		 803 case bfd_mach_mips16:
804 case bfd_mach_mipsisa32:
af7ee8bf 805 case bfd_mach_mipsisa32r2:
ae52f483
AB		 806 case bfd_mach_mipsisa32r3:
807 case bfd_mach_mipsisa32r5:
7361da2c 808 case bfd_mach_mipsisa32r6:
923f08ff
AM		 809 case bfd_mach_mips5:
810 case bfd_mach_mipsisa64:
5f74bc13 811 case bfd_mach_mipsisa64r2:
ae52f483
AB		 812 case bfd_mach_mipsisa64r3:
813 case bfd_mach_mipsisa64r5:
7361da2c 814 case bfd_mach_mipsisa64r6:
923f08ff 815 case bfd_mach_mips_sb1:
52b6b6b9 816 case bfd_mach_mips_xlr:
923f08ff
AM		 817 /* FIXME: These should be MIPS3, MIPS4, MIPS16, MIPS32, etc. */
818 arch_flags = M_MIPS2;
819 break;
820 default:
821 arch_flags = M_UNKNOWN;
822 break;
823 }
824 break;
825
826 case bfd_arch_ns32k:
827 switch (machine)
828 {
829 case 0: arch_flags = M_NS32532; break;
830 case 32032: arch_flags = M_NS32032; break;
831 case 32532: arch_flags = M_NS32532; break;
832 default: arch_flags = M_UNKNOWN; break;
833 }
834 break;
252b5132 835
923f08ff 836 case bfd_arch_vax:
b34976b6 837 *unknown = FALSE;
923f08ff 838 break;
06c15ad7 839
923f08ff
AM		 840 case bfd_arch_cris:
841 if (machine == 0 || machine == 255)
842 arch_flags = M_CRIS;
843 break;
844
727e493d
MK		 845 case bfd_arch_m88k:
846 *unknown = FALSE;
847 break;
848
923f08ff
AM		 849 default:
850 arch_flags = M_UNKNOWN;
851 }
252b5132
RH		 852
853 if (arch_flags != M_UNKNOWN)
b34976b6 854 *unknown = FALSE;
252b5132
RH		 855
856 return arch_flags;
857}
858
252b5132
RH		 859/*
860FUNCTION
861 aout_@var{size}_set_arch_mach
862
863SYNOPSIS
b34976b6 864 bfd_boolean aout_@var{size}_set_arch_mach,
252b5132
RH		 865 (bfd *,
866 enum bfd_architecture arch,
116c20d2 867 unsigned long machine);
252b5132
RH		 868
869DESCRIPTION
870 Set the architecture and the machine of the BFD @var{abfd} to the
871 values @var{arch} and @var{machine}. Verify that @var{abfd}'s format
872 can support the architecture required.
873*/
874
b34976b6 875bfd_boolean
116c20d2
NC		 876NAME (aout, set_arch_mach) (bfd *abfd,
877 enum bfd_architecture arch,
878 unsigned long machine)
252b5132
RH		 879{
880 if (! bfd_default_set_arch_mach (abfd, arch, machine))
b34976b6 881 return FALSE;
252b5132
RH		 882
883 if (arch != bfd_arch_unknown)
884 {
b34976b6 885 bfd_boolean unknown;
252b5132 886
116c20d2 887 NAME (aout, machine_type) (arch, machine, &unknown);
252b5132 888 if (unknown)
b34976b6 889 return FALSE;
252b5132
RH		 890 }
891
f7c33884 892 /* Determine the size of a relocation entry. */
923f08ff
AM		 893 switch (arch)
894 {
895 case bfd_arch_sparc:
923f08ff
AM		 896 case bfd_arch_mips:
897 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
898 break;
899 default:
900 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
901 break;
902 }
252b5132 903
923f08ff 904 return (*aout_backend_info (abfd)->set_sizes) (abfd);
252b5132
RH		 905}
906
907static void
116c20d2 908adjust_o_magic (bfd *abfd, struct internal_exec *execp)
252b5132
RH		 909{
910 file_ptr pos = adata (abfd).exec_bytes_size;
911 bfd_vma vma = 0;
912 int pad = 0;
913
914 /* Text. */
923f08ff
AM		 915 obj_textsec (abfd)->filepos = pos;
916 if (!obj_textsec (abfd)->user_set_vma)
917 obj_textsec (abfd)->vma = vma;
252b5132 918 else
923f08ff 919 vma = obj_textsec (abfd)->vma;
252b5132 920
eea6121a
AM		 921 pos += obj_textsec (abfd)->size;
922 vma += obj_textsec (abfd)->size;
252b5132
RH		 923
924 /* Data. */
923f08ff 925 if (!obj_datasec (abfd)->user_set_vma)
252b5132 926 {
eea6121a 927 obj_textsec (abfd)->size += pad;
252b5132
RH		 928 pos += pad;
929 vma += pad;
923f08ff 930 obj_datasec (abfd)->vma = vma;
252b5132
RH		 931 }
932 else
923f08ff
AM		 933 vma = obj_datasec (abfd)->vma;
934 obj_datasec (abfd)->filepos = pos;
eea6121a
AM		 935 pos += obj_datasec (abfd)->size;
936 vma += obj_datasec (abfd)->size;
252b5132
RH		 937
938 /* BSS. */
923f08ff 939 if (!obj_bsssec (abfd)->user_set_vma)
252b5132 940 {
eea6121a 941 obj_datasec (abfd)->size += pad;
252b5132
RH		 942 pos += pad;
943 vma += pad;
923f08ff 944 obj_bsssec (abfd)->vma = vma;
252b5132
RH		 945 }
946 else
947 {
08da05b0 948 /* The VMA of the .bss section is set by the VMA of the
252b5132
RH		 949 .data section plus the size of the .data section. We may
950 need to add padding bytes to make this true. */
951 pad = obj_bsssec (abfd)->vma - vma;
952 if (pad > 0)
953 {
eea6121a 954 obj_datasec (abfd)->size += pad;
252b5132
RH		 955 pos += pad;
956 }
957 }
923f08ff 958 obj_bsssec (abfd)->filepos = pos;
252b5132
RH		 959
960 /* Fix up the exec header. */
eea6121a
AM		 961 execp->a_text = obj_textsec (abfd)->size;
962 execp->a_data = obj_datasec (abfd)->size;
963 execp->a_bss = obj_bsssec (abfd)->size;
bbb1afc8 964 N_SET_MAGIC (execp, OMAGIC);
252b5132
RH		 965}
966
967static void
116c20d2 968adjust_z_magic (bfd *abfd, struct internal_exec *execp)
252b5132
RH		 969{
970 bfd_size_type data_pad, text_pad;
971 file_ptr text_end;
dc810e39 972 const struct aout_backend_data *abdp;
116c20d2
NC		 973 /* TRUE if text includes exec header. */
974 bfd_boolean ztih;
0ef5a5bd 975
252b5132
RH		 976 abdp = aout_backend_info (abfd);
977
978 /* Text. */
979 ztih = (abdp != NULL
980 && (abdp->text_includes_header
981 || obj_aout_subformat (abfd) == q_magic_format));
923f08ff
AM		 982 obj_textsec (abfd)->filepos = (ztih
983 ? adata (abfd).exec_bytes_size
984 : adata (abfd).zmagic_disk_block_size);
985 if (! obj_textsec (abfd)->user_set_vma)
252b5132
RH		 986 {
987 /* ?? Do we really need to check for relocs here? */
923f08ff
AM		 988 obj_textsec (abfd)->vma = ((abfd->flags & HAS_RELOC)
989 ? 0
990 : (ztih
991 ? (abdp->default_text_vma
992 + adata (abfd).exec_bytes_size)
993 : abdp->default_text_vma));
252b5132
RH		 994 text_pad = 0;
995 }
996 else
997 {
998 /* The .text section is being loaded at an unusual address. We
999 may need to pad it such that the .data section starts at a page
1000 boundary. */
1001 if (ztih)
1002 text_pad = ((obj_textsec (abfd)->filepos - obj_textsec (abfd)->vma)
1003 & (adata (abfd).page_size - 1));
1004 else
1005 text_pad = ((- obj_textsec (abfd)->vma)
1006 & (adata (abfd).page_size - 1));
1007 }
1008
1009 /* Find start of data. */
1010 if (ztih)
1011 {
eea6121a 1012 text_end = obj_textsec (abfd)->filepos + obj_textsec (abfd)->size;
252b5132
RH		 1013 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
1014 }
1015 else
1016 {
1017 /* Note that if page_size == zmagic_disk_block_size, then
1018 filepos == page_size, and this case is the same as the ztih
1019 case. */
eea6121a 1020 text_end = obj_textsec (abfd)->size;
252b5132
RH		 1021 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
1022 text_end += obj_textsec (abfd)->filepos;
1023 }
eea6121a 1024 obj_textsec (abfd)->size += text_pad;
252b5132
RH		 1025 text_end += text_pad;
1026
1027 /* Data. */
923f08ff 1028 if (!obj_datasec (abfd)->user_set_vma)
252b5132
RH		 1029 {
1030 bfd_vma vma;
eea6121a 1031 vma = obj_textsec (abfd)->vma + obj_textsec (abfd)->size;
923f08ff 1032 obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
252b5132
RH		 1033 }
1034 if (abdp && abdp->zmagic_mapped_contiguous)
1035 {
dee0a8f4
NC		 1036 asection * text = obj_textsec (abfd);
1037 asection * data = obj_datasec (abfd);
1038
eea6121a 1039 text_pad = data->vma - (text->vma + text->size);
dee0a8f4
NC		 1040 /* Only pad the text section if the data
1041 section is going to be placed after it. */
1042 if (text_pad > 0)
eea6121a 1043 text->size += text_pad;
252b5132 1044 }
923f08ff 1045 obj_datasec (abfd)->filepos = (obj_textsec (abfd)->filepos
eea6121a 1046 + obj_textsec (abfd)->size);
0ef5a5bd 1047
252b5132 1048 /* Fix up exec header while we're at it. */
eea6121a 1049 execp->a_text = obj_textsec (abfd)->size;
252b5132 1050 if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted)))
923f08ff 1051 execp->a_text += adata (abfd).exec_bytes_size;
252b5132 1052 if (obj_aout_subformat (abfd) == q_magic_format)
bbb1afc8 1053 N_SET_MAGIC (execp, QMAGIC);
252b5132 1054 else
bbb1afc8 1055 N_SET_MAGIC (execp, ZMAGIC);
252b5132
RH		 1056
1057 /* Spec says data section should be rounded up to page boundary. */
eea6121a
AM		 1058 obj_datasec (abfd)->size
1059 = align_power (obj_datasec (abfd)->size,
923f08ff 1060 obj_bsssec (abfd)->alignment_power);
eea6121a 1061 execp->a_data = BFD_ALIGN (obj_datasec (abfd)->size,
923f08ff 1062 adata (abfd).page_size);
eea6121a 1063 data_pad = execp->a_data - obj_datasec (abfd)->size;
252b5132
RH		 1064
1065 /* BSS. */
923f08ff
AM		 1066 if (!obj_bsssec (abfd)->user_set_vma)
1067 obj_bsssec (abfd)->vma = (obj_datasec (abfd)->vma
eea6121a 1068 + obj_datasec (abfd)->size);
252b5132
RH		 1069 /* If the BSS immediately follows the data section and extra space
1070 in the page is left after the data section, fudge data
1071 in the header so that the bss section looks smaller by that
1072 amount. We'll start the bss section there, and lie to the OS.
1073 (Note that a linker script, as well as the above assignment,
1074 could have explicitly set the BSS vma to immediately follow
1075 the data section.) */
923f08ff 1076 if (align_power (obj_bsssec (abfd)->vma, obj_bsssec (abfd)->alignment_power)
eea6121a
AM		 1077 == obj_datasec (abfd)->vma + obj_datasec (abfd)->size)
1078 execp->a_bss = (data_pad > obj_bsssec (abfd)->size
1079 ? 0 : obj_bsssec (abfd)->size - data_pad);
252b5132 1080 else
eea6121a 1081 execp->a_bss = obj_bsssec (abfd)->size;
252b5132
RH		 1082}
1083
1084static void
116c20d2 1085adjust_n_magic (bfd *abfd, struct internal_exec *execp)
252b5132 1086{
923f08ff 1087 file_ptr pos = adata (abfd).exec_bytes_size;
252b5132
RH		 1088 bfd_vma vma = 0;
1089 int pad;
0ef5a5bd 1090
252b5132 1091 /* Text. */
923f08ff
AM		 1092 obj_textsec (abfd)->filepos = pos;
1093 if (!obj_textsec (abfd)->user_set_vma)
1094 obj_textsec (abfd)->vma = vma;
252b5132 1095 else
923f08ff 1096 vma = obj_textsec (abfd)->vma;
eea6121a
AM		 1097 pos += obj_textsec (abfd)->size;
1098 vma += obj_textsec (abfd)->size;
252b5132
RH		 1099
1100 /* Data. */
923f08ff
AM		 1101 obj_datasec (abfd)->filepos = pos;
1102 if (!obj_datasec (abfd)->user_set_vma)
1103 obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
1104 vma = obj_datasec (abfd)->vma;
0ef5a5bd 1105
252b5132 1106 /* Since BSS follows data immediately, see if it needs alignment. */
eea6121a 1107 vma += obj_datasec (abfd)->size;
923f08ff 1108 pad = align_power (vma, obj_bsssec (abfd)->alignment_power) - vma;
eea6121a
AM		 1109 obj_datasec (abfd)->size += pad;
1110 pos += obj_datasec (abfd)->size;
252b5132
RH		 1111
1112 /* BSS. */
923f08ff
AM		 1113 if (!obj_bsssec (abfd)->user_set_vma)
1114 obj_bsssec (abfd)->vma = vma;
252b5132 1115 else
923f08ff 1116 vma = obj_bsssec (abfd)->vma;
252b5132
RH		 1117
1118 /* Fix up exec header. */
eea6121a
AM		 1119 execp->a_text = obj_textsec (abfd)->size;
1120 execp->a_data = obj_datasec (abfd)->size;
1121 execp->a_bss = obj_bsssec (abfd)->size;
bbb1afc8 1122 N_SET_MAGIC (execp, NMAGIC);
252b5132
RH		 1123}
1124
b34976b6 1125bfd_boolean
3a8c4a5b 1126NAME (aout, adjust_sizes_and_vmas) (bfd *abfd)
252b5132
RH		 1127{
1128 struct internal_exec *execp = exec_hdr (abfd);
1129
116c20d2 1130 if (! NAME (aout, make_sections) (abfd))
b34976b6 1131 return FALSE;
252b5132 1132
923f08ff 1133 if (adata (abfd).magic != undecided_magic)
b34976b6 1134 return TRUE;
252b5132 1135
eea6121a
AM		 1136 obj_textsec (abfd)->size =
1137 align_power (obj_textsec (abfd)->size,
923f08ff 1138 obj_textsec (abfd)->alignment_power);
252b5132 1139
252b5132
RH		 1140 /* Rule (heuristic) for when to pad to a new page. Note that there
1141 are (at least) two ways demand-paged (ZMAGIC) files have been
1142 handled. Most Berkeley-based systems start the text segment at
1143 (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text
1144 segment right after the exec header; the latter is counted in the
1145 text segment size, and is paged in by the kernel with the rest of
0ef5a5bd 1146 the text. */
252b5132
RH		 1147
1148 /* This perhaps isn't the right way to do this, but made it simpler for me
1149 to understand enough to implement it. Better would probably be to go
1150 right from BFD flags to alignment/positioning characteristics. But the
1151 old code was sloppy enough about handling the flags, and had enough
1152 other magic, that it was a little hard for me to understand. I think
1153 I understand it better now, but I haven't time to do the cleanup this
1154 minute. */
1155
1156 if (abfd->flags & D_PAGED)
1157 /* Whether or not WP_TEXT is set -- let D_PAGED override. */
923f08ff 1158 adata (abfd).magic = z_magic;
252b5132 1159 else if (abfd->flags & WP_TEXT)
923f08ff 1160 adata (abfd).magic = n_magic;
252b5132 1161 else
923f08ff 1162 adata (abfd).magic = o_magic;
252b5132
RH		 1163
1164#ifdef BFD_AOUT_DEBUG /* requires gcc2 */
1165#if __GNUC__ >= 2
1166 fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n",
1167 ({ char *str;
923f08ff
AM		 1168 switch (adata (abfd).magic)
1169 {
1170 case n_magic: str = "NMAGIC"; break;
1171 case o_magic: str = "OMAGIC"; break;
1172 case z_magic: str = "ZMAGIC"; break;
1173 default: abort ();
1174 }
252b5132
RH		 1175 str;
1176 }),
eea6121a 1177 obj_textsec (abfd)->vma, obj_textsec (abfd)->size,
923f08ff 1178 obj_textsec (abfd)->alignment_power,
eea6121a 1179 obj_datasec (abfd)->vma, obj_datasec (abfd)->size,
923f08ff 1180 obj_datasec (abfd)->alignment_power,
eea6121a 1181 obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size,
923f08ff 1182 obj_bsssec (abfd)->alignment_power);
252b5132
RH		 1183#endif
1184#endif
1185
923f08ff 1186 switch (adata (abfd).magic)
252b5132
RH		 1187 {
1188 case o_magic:
1189 adjust_o_magic (abfd, execp);
1190 break;
1191 case z_magic:
1192 adjust_z_magic (abfd, execp);
1193 break;
1194 case n_magic:
1195 adjust_n_magic (abfd, execp);
1196 break;
1197 default:
1198 abort ();
1199 }
1200
1201#ifdef BFD_AOUT_DEBUG
1202 fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n",
eea6121a 1203 obj_textsec (abfd)->vma, obj_textsec (abfd)->size,
923f08ff 1204 obj_textsec (abfd)->filepos,
eea6121a 1205 obj_datasec (abfd)->vma, obj_datasec (abfd)->size,
923f08ff 1206 obj_datasec (abfd)->filepos,
eea6121a 1207 obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size);
252b5132
RH		 1208#endif
1209
b34976b6 1210 return TRUE;
252b5132
RH		 1211}
1212
1213/*
1214FUNCTION
1215 aout_@var{size}_new_section_hook
1216
1217SYNOPSIS
b34976b6 1218 bfd_boolean aout_@var{size}_new_section_hook,
252b5132 1219 (bfd *abfd,
116c20d2 1220 asection *newsect);
252b5132
RH		 1221
1222DESCRIPTION
1223 Called by the BFD in response to a @code{bfd_make_section}
1224 request.
1225*/
b34976b6 1226bfd_boolean
116c20d2 1227NAME (aout, new_section_hook) (bfd *abfd, asection *newsect)
252b5132 1228{
f7c33884 1229 /* Align to double at least. */
923f08ff 1230 newsect->alignment_power = bfd_get_arch_info (abfd)->section_align_power;
252b5132 1231
252b5132 1232 if (bfd_get_format (abfd) == bfd_object)
f7c33884
NC		 1233 {
1234 if (obj_textsec (abfd) == NULL && !strcmp (newsect->name, ".text"))
1235 {
1236 obj_textsec (abfd)= newsect;
1237 newsect->target_index = N_TEXT;
f7c33884 1238 }
f592407e 1239 else if (obj_datasec (abfd) == NULL && !strcmp (newsect->name, ".data"))
f7c33884
NC		 1240 {
1241 obj_datasec (abfd) = newsect;
1242 newsect->target_index = N_DATA;
f7c33884 1243 }
f592407e 1244 else if (obj_bsssec (abfd) == NULL && !strcmp (newsect->name, ".bss"))
f7c33884
NC		 1245 {
1246 obj_bsssec (abfd) = newsect;
1247 newsect->target_index = N_BSS;
f7c33884
NC		 1248 }
1249 }
252b5132 1250
f7c33884 1251 /* We allow more than three sections internally. */
f592407e 1252 return _bfd_generic_new_section_hook (abfd, newsect);
252b5132
RH		 1253}
1254
b34976b6 1255bfd_boolean
116c20d2
NC		 1256NAME (aout, set_section_contents) (bfd *abfd,
1257 sec_ptr section,
1258 const void * location,
1259 file_ptr offset,
1260 bfd_size_type count)
252b5132 1261{
252b5132
RH		 1262 if (! abfd->output_has_begun)
1263 {
3a8c4a5b 1264 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
b34976b6 1265 return FALSE;
252b5132
RH		 1266 }
1267
1268 if (section == obj_bsssec (abfd))
1269 {
1270 bfd_set_error (bfd_error_no_contents);
b34976b6 1271 return FALSE;
252b5132
RH		 1272 }
1273
1274 if (section != obj_textsec (abfd)
1275 && section != obj_datasec (abfd))
1276 {
e6af3a53
NC		 1277 if (aout_section_merge_with_text_p (abfd, section))
1278 section->filepos = obj_textsec (abfd)->filepos +
1279 (section->vma - obj_textsec (abfd)->vma);
1280 else
1281 {
4eca0228 1282 _bfd_error_handler
695344c0 1283 /* xgettext:c-format */
dae82561
AM		 1284 (_("%B: can not represent section `%A' in a.out object file format"),
1285 abfd, section);
e6af3a53
NC		 1286 bfd_set_error (bfd_error_nonrepresentable_section);
1287 return FALSE;
1288 }
252b5132
RH		 1289 }
1290
1291 if (count != 0)
1292 {
1293 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
dc810e39 1294 || bfd_bwrite (location, count, abfd) != count)
b34976b6 1295 return FALSE;
252b5132
RH		 1296 }
1297
b34976b6 1298 return TRUE;
252b5132
RH		 1299}
1300\f
1301/* Read the external symbols from an a.out file. */
1302
b34976b6 1303static bfd_boolean
116c20d2 1304aout_get_external_symbols (bfd *abfd)
252b5132 1305{
116c20d2 1306 if (obj_aout_external_syms (abfd) == NULL)
252b5132
RH		 1307 {
1308 bfd_size_type count;
1309 struct external_nlist *syms;
7c53fd1c 1310 bfd_size_type amt = exec_hdr (abfd)->a_syms;
252b5132 1311
7c53fd1c 1312 count = amt / EXTERNAL_NLIST_SIZE;
6b8f0fd5
MS		 1313 if (count == 0)
1314 return TRUE; /* Nothing to do. */
252b5132
RH		 1315
1316#ifdef USE_MMAP
7c53fd1c 1317 if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd), amt,
b34976b6
AM		 1318 &obj_aout_sym_window (abfd), TRUE))
1319 return FALSE;
252b5132
RH		 1320 syms = (struct external_nlist *) obj_aout_sym_window (abfd).data;
1321#else
1322 /* We allocate using malloc to make the values easy to free
1323 later on. If we put them on the objalloc it might not be
1324 possible to free them. */
7c53fd1c 1325 syms = (struct external_nlist *) bfd_malloc (amt);
6b8f0fd5 1326 if (syms == NULL)
b34976b6 1327 return FALSE;
252b5132 1328
7c53fd1c
AM		 1329 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
1330 || bfd_bread (syms, amt, abfd) != amt)
1331 {
1332 free (syms);
1333 return FALSE;
1334 }
252b5132
RH		 1335#endif
1336
1337 obj_aout_external_syms (abfd) = syms;
1338 obj_aout_external_sym_count (abfd) = count;
1339 }
0ef5a5bd 1340
252b5132
RH		 1341 if (obj_aout_external_strings (abfd) == NULL
1342 && exec_hdr (abfd)->a_syms != 0)
1343 {
1344 unsigned char string_chars[BYTES_IN_WORD];
1345 bfd_size_type stringsize;
1346 char *strings;
dc810e39 1347 bfd_size_type amt = BYTES_IN_WORD;
252b5132
RH		 1348
1349 /* Get the size of the strings. */
1350 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
116c20d2 1351 || bfd_bread ((void *) string_chars, amt, abfd) != amt)
b34976b6 1352 return FALSE;
252b5132
RH		 1353 stringsize = GET_WORD (abfd, string_chars);
1354
1355#ifdef USE_MMAP
82e51918 1356 if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize,
b34976b6
AM		 1357 &obj_aout_string_window (abfd), TRUE))
1358 return FALSE;
252b5132
RH		 1359 strings = (char *) obj_aout_string_window (abfd).data;
1360#else
a50b1753 1361 strings = (char *) bfd_malloc (stringsize + 1);
252b5132 1362 if (strings == NULL)
b34976b6 1363 return FALSE;
252b5132
RH		 1364
1365 /* Skip space for the string count in the buffer for convenience
1366 when using indexes. */
dc810e39
AM		 1367 amt = stringsize - BYTES_IN_WORD;
1368 if (bfd_bread (strings + BYTES_IN_WORD, amt, abfd) != amt)
252b5132
RH		 1369 {
1370 free (strings);
b34976b6 1371 return FALSE;
252b5132
RH		 1372 }
1373#endif
1374
1375 /* Ensure that a zero index yields an empty string. */
1376 strings[0] = '\0';
1377
1378 strings[stringsize - 1] = 0;
1379
1380 obj_aout_external_strings (abfd) = strings;
1381 obj_aout_external_string_size (abfd) = stringsize;
1382 }
1383
b34976b6 1384 return TRUE;
252b5132
RH		 1385}
1386
1387/* Translate an a.out symbol into a BFD symbol. The desc, other, type
1388 and symbol->value fields of CACHE_PTR will be set from the a.out
1389 nlist structure. This function is responsible for setting
1390 symbol->flags and symbol->section, and adjusting symbol->value. */
1391
b34976b6 1392static bfd_boolean
116c20d2 1393translate_from_native_sym_flags (bfd *abfd, aout_symbol_type *cache_ptr)
252b5132
RH		 1394{
1395 flagword visible;
1396
1397 if ((cache_ptr->type & N_STAB) != 0
1398 || cache_ptr->type == N_FN)
1399 {
1400 asection *sec;
1401
1402 /* This is a debugging symbol. */
252b5132
RH		 1403 cache_ptr->symbol.flags = BSF_DEBUGGING;
1404
1405 /* Work out the symbol section. */
1406 switch (cache_ptr->type & N_TYPE)
1407 {
1408 case N_TEXT:
1409 case N_FN:
1410 sec = obj_textsec (abfd);
1411 break;
1412 case N_DATA:
1413 sec = obj_datasec (abfd);
1414 break;
1415 case N_BSS:
1416 sec = obj_bsssec (abfd);
1417 break;
1418 default:
1419 case N_ABS:
1420 sec = bfd_abs_section_ptr;
1421 break;
1422 }
1423
1424 cache_ptr->symbol.section = sec;
1425 cache_ptr->symbol.value -= sec->vma;
1426
b34976b6 1427 return TRUE;
252b5132
RH		 1428 }
1429
1430 /* Get the default visibility. This does not apply to all types, so
1431 we just hold it in a local variable to use if wanted. */
1432 if ((cache_ptr->type & N_EXT) == 0)
1433 visible = BSF_LOCAL;
1434 else
1435 visible = BSF_GLOBAL;
1436
1437 switch (cache_ptr->type)
1438 {
1439 default:
1440 case N_ABS: case N_ABS | N_EXT:
1441 cache_ptr->symbol.section = bfd_abs_section_ptr;
1442 cache_ptr->symbol.flags = visible;
1443 break;
1444
1445 case N_UNDF | N_EXT:
1446 if (cache_ptr->symbol.value != 0)
1447 {
1448 /* This is a common symbol. */
1449 cache_ptr->symbol.flags = BSF_GLOBAL;
1450 cache_ptr->symbol.section = bfd_com_section_ptr;
1451 }
1452 else
1453 {
1454 cache_ptr->symbol.flags = 0;
1455 cache_ptr->symbol.section = bfd_und_section_ptr;
1456 }
1457 break;
1458
1459 case N_TEXT: case N_TEXT | N_EXT:
1460 cache_ptr->symbol.section = obj_textsec (abfd);
1461 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1462 cache_ptr->symbol.flags = visible;
1463 break;
1464
1465 /* N_SETV symbols used to represent set vectors placed in the
1466 data section. They are no longer generated. Theoretically,
1467 it was possible to extract the entries and combine them with
1468 new ones, although I don't know if that was ever actually
1469 done. Unless that feature is restored, treat them as data
1470 symbols. */
1471 case N_SETV: case N_SETV | N_EXT:
1472 case N_DATA: case N_DATA | N_EXT:
1473 cache_ptr->symbol.section = obj_datasec (abfd);
1474 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1475 cache_ptr->symbol.flags = visible;
1476 break;
1477
1478 case N_BSS: case N_BSS | N_EXT:
1479 cache_ptr->symbol.section = obj_bsssec (abfd);
1480 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1481 cache_ptr->symbol.flags = visible;
1482 break;
1483
1484 case N_SETA: case N_SETA | N_EXT:
1485 case N_SETT: case N_SETT | N_EXT:
1486 case N_SETD: case N_SETD | N_EXT:
1487 case N_SETB: case N_SETB | N_EXT:
1488 {
1489 /* This code is no longer needed. It used to be used to make
1490 the linker handle set symbols, but they are now handled in
1491 the add_symbols routine instead. */
252b5132
RH		 1492 switch (cache_ptr->type & N_TYPE)
1493 {
1494 case N_SETA:
1495 cache_ptr->symbol.section = bfd_abs_section_ptr;
1496 break;
1497 case N_SETT:
1498 cache_ptr->symbol.section = obj_textsec (abfd);
1499 break;
1500 case N_SETD:
1501 cache_ptr->symbol.section = obj_datasec (abfd);
1502 break;
1503 case N_SETB:
1504 cache_ptr->symbol.section = obj_bsssec (abfd);
1505 break;
1506 }
1507
1508 cache_ptr->symbol.flags |= BSF_CONSTRUCTOR;
1509 }
1510 break;
1511
1512 case N_WARNING:
1513 /* This symbol is the text of a warning message. The next
1514 symbol is the symbol to associate the warning with. If a
1515 reference is made to that symbol, a warning is issued. */
1516 cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_WARNING;
1517 cache_ptr->symbol.section = bfd_abs_section_ptr;
1518 break;
1519
1520 case N_INDR: case N_INDR | N_EXT:
1521 /* An indirect symbol. This consists of two symbols in a row.
1522 The first symbol is the name of the indirection. The second
1523 symbol is the name of the target. A reference to the first
1524 symbol becomes a reference to the second. */
1525 cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_INDIRECT | visible;
1526 cache_ptr->symbol.section = bfd_ind_section_ptr;
1527 break;
1528
1529 case N_WEAKU:
1530 cache_ptr->symbol.section = bfd_und_section_ptr;
1531 cache_ptr->symbol.flags = BSF_WEAK;
1532 break;
1533
1534 case N_WEAKA:
1535 cache_ptr->symbol.section = bfd_abs_section_ptr;
1536 cache_ptr->symbol.flags = BSF_WEAK;
1537 break;
1538
1539 case N_WEAKT:
1540 cache_ptr->symbol.section = obj_textsec (abfd);
1541 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1542 cache_ptr->symbol.flags = BSF_WEAK;
1543 break;
1544
1545 case N_WEAKD:
1546 cache_ptr->symbol.section = obj_datasec (abfd);
1547 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1548 cache_ptr->symbol.flags = BSF_WEAK;
1549 break;
1550
1551 case N_WEAKB:
1552 cache_ptr->symbol.section = obj_bsssec (abfd);
1553 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1554 cache_ptr->symbol.flags = BSF_WEAK;
1555 break;
1556 }
1557
b34976b6 1558 return TRUE;
252b5132
RH		 1559}
1560
1561/* Set the fields of SYM_POINTER according to CACHE_PTR. */
1562
b34976b6 1563static bfd_boolean
116c20d2
NC		 1564translate_to_native_sym_flags (bfd *abfd,
1565 asymbol *cache_ptr,
1566 struct external_nlist *sym_pointer)
252b5132
RH		 1567{
1568 bfd_vma value = cache_ptr->value;
1569 asection *sec;
1570 bfd_vma off;
1571
1572 /* Mask out any existing type bits in case copying from one section
1573 to another. */
1574 sym_pointer->e_type[0] &= ~N_TYPE;
1575
1576 sec = bfd_get_section (cache_ptr);
1577 off = 0;
1578
1579 if (sec == NULL)
1580 {
1581 /* This case occurs, e.g., for the *DEBUG* section of a COFF
1582 file. */
4eca0228 1583 _bfd_error_handler
695344c0 1584 /* xgettext:c-format */
dae82561 1585 (_("%B: can not represent section for symbol `%s' in a.out "
4eca0228 1586 "object file format"),
dae82561 1587 abfd,
252b5132
RH		 1588 cache_ptr->name != NULL ? cache_ptr->name : _("*unknown*"));
1589 bfd_set_error (bfd_error_nonrepresentable_section);
b34976b6 1590 return FALSE;
252b5132
RH		 1591 }
1592
1593 if (sec->output_section != NULL)
1594 {
1595 off = sec->output_offset;
1596 sec = sec->output_section;
1597 }
1598
1599 if (bfd_is_abs_section (sec))
1600 sym_pointer->e_type[0] |= N_ABS;
1601 else if (sec == obj_textsec (abfd))
1602 sym_pointer->e_type[0] |= N_TEXT;
1603 else if (sec == obj_datasec (abfd))
1604 sym_pointer->e_type[0] |= N_DATA;
1605 else if (sec == obj_bsssec (abfd))
1606 sym_pointer->e_type[0] |= N_BSS;
1607 else if (bfd_is_und_section (sec))
1608 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1609 else if (bfd_is_ind_section (sec))
1610 sym_pointer->e_type[0] = N_INDR;
1611 else if (bfd_is_com_section (sec))
1612 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1613 else
1614 {
e6af3a53
NC		 1615 if (aout_section_merge_with_text_p (abfd, sec))
1616 sym_pointer->e_type[0] |= N_TEXT;
1617 else
1618 {
4eca0228 1619 _bfd_error_handler
695344c0 1620 /* xgettext:c-format */
dae82561
AM		 1621 (_("%B: can not represent section `%A' in a.out object file format"),
1622 abfd, sec);
e6af3a53
NC		 1623 bfd_set_error (bfd_error_nonrepresentable_section);
1624 return FALSE;
1625 }
252b5132
RH		 1626 }
1627
f7c33884 1628 /* Turn the symbol from section relative to absolute again. */
252b5132
RH		 1629 value += sec->vma + off;
1630
1631 if ((cache_ptr->flags & BSF_WARNING) != 0)
1632 sym_pointer->e_type[0] = N_WARNING;
1633
1634 if ((cache_ptr->flags & BSF_DEBUGGING) != 0)
1635 sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type;
1636 else if ((cache_ptr->flags & BSF_GLOBAL) != 0)
1637 sym_pointer->e_type[0] |= N_EXT;
930d924d
L		 1638 else if ((cache_ptr->flags & BSF_LOCAL) != 0)
1639 sym_pointer->e_type[0] &= ~N_EXT;
252b5132
RH		 1640
1641 if ((cache_ptr->flags & BSF_CONSTRUCTOR) != 0)
1642 {
1643 int type = ((aout_symbol_type *) cache_ptr)->type;
f7c33884 1644
252b5132
RH		 1645 switch (type)
1646 {
1647 case N_ABS: type = N_SETA; break;
1648 case N_TEXT: type = N_SETT; break;
1649 case N_DATA: type = N_SETD; break;
1650 case N_BSS: type = N_SETB; break;
1651 }
1652 sym_pointer->e_type[0] = type;
1653 }
1654
1655 if ((cache_ptr->flags & BSF_WEAK) != 0)
1656 {
1657 int type;
1658
1659 switch (sym_pointer->e_type[0] & N_TYPE)
1660 {
1661 default:
1662 case N_ABS: type = N_WEAKA; break;
1663 case N_TEXT: type = N_WEAKT; break;
1664 case N_DATA: type = N_WEAKD; break;
1665 case N_BSS: type = N_WEAKB; break;
1666 case N_UNDF: type = N_WEAKU; break;
1667 }
1668 sym_pointer->e_type[0] = type;
1669 }
1670
923f08ff 1671 PUT_WORD (abfd, value, sym_pointer->e_value);
252b5132 1672
b34976b6 1673 return TRUE;
252b5132
RH		 1674}
1675\f
0ef5a5bd 1676/* Native-level interface to symbols. */
252b5132
RH		 1677
1678asymbol *
116c20d2 1679NAME (aout, make_empty_symbol) (bfd *abfd)
252b5132 1680{
dc810e39 1681 bfd_size_type amt = sizeof (aout_symbol_type);
116c20d2 1682
d3ce72d0
NC		 1683 aout_symbol_type *new_symbol = (aout_symbol_type *) bfd_zalloc (abfd, amt);
1684 if (!new_symbol)
252b5132 1685 return NULL;
d3ce72d0 1686 new_symbol->symbol.the_bfd = abfd;
252b5132 1687
d3ce72d0 1688 return &new_symbol->symbol;
252b5132
RH		 1689}
1690
1691/* Translate a set of internal symbols into external symbols. */
1692
b34976b6 1693bfd_boolean
116c20d2
NC		 1694NAME (aout, translate_symbol_table) (bfd *abfd,
1695 aout_symbol_type *in,
1696 struct external_nlist *ext,
1697 bfd_size_type count,
1698 char *str,
1699 bfd_size_type strsize,
1700 bfd_boolean dynamic)
252b5132
RH		 1701{
1702 struct external_nlist *ext_end;
1703
1704 ext_end = ext + count;
1705 for (; ext < ext_end; ext++, in++)
1706 {
1707 bfd_vma x;
1708
1709 x = GET_WORD (abfd, ext->e_strx);
1710 in->symbol.the_bfd = abfd;
1711
1712 /* For the normal symbols, the zero index points at the number
1713 of bytes in the string table but is to be interpreted as the
1714 null string. For the dynamic symbols, the number of bytes in
1715 the string table is stored in the __DYNAMIC structure and the
1716 zero index points at an actual string. */
1717 if (x == 0 && ! dynamic)
1718 in->symbol.name = "";
1719 else if (x < strsize)
1720 in->symbol.name = str + x;
1721 else
b34976b6 1722 return FALSE;
252b5132
RH		 1723
1724 in->symbol.value = GET_SWORD (abfd, ext->e_value);
dc810e39
AM		 1725 in->desc = H_GET_16 (abfd, ext->e_desc);
1726 in->other = H_GET_8 (abfd, ext->e_other);
1727 in->type = H_GET_8 (abfd, ext->e_type);
252b5132
RH		 1728 in->symbol.udata.p = NULL;
1729
1730 if (! translate_from_native_sym_flags (abfd, in))
b34976b6 1731 return FALSE;
252b5132
RH		 1732
1733 if (dynamic)
1734 in->symbol.flags |= BSF_DYNAMIC;
1735 }
1736
b34976b6 1737 return TRUE;
252b5132
RH		 1738}
1739
1740/* We read the symbols into a buffer, which is discarded when this
1741 function exits. We read the strings into a buffer large enough to
0ef5a5bd 1742 hold them all plus all the cached symbol entries. */
252b5132 1743
b34976b6 1744bfd_boolean
116c20d2 1745NAME (aout, slurp_symbol_table) (bfd *abfd)
252b5132
RH		 1746{
1747 struct external_nlist *old_external_syms;
1748 aout_symbol_type *cached;
dc810e39 1749 bfd_size_type cached_size;
252b5132 1750
f7c33884 1751 /* If there's no work to be done, don't do any. */
116c20d2 1752 if (obj_aout_symbols (abfd) != NULL)
b34976b6 1753 return TRUE;
252b5132
RH		 1754
1755 old_external_syms = obj_aout_external_syms (abfd);
1756
1757 if (! aout_get_external_symbols (abfd))
b34976b6 1758 return FALSE;
252b5132 1759
dc810e39 1760 cached_size = obj_aout_external_sym_count (abfd);
87b32780
MS		 1761 if (cached_size == 0)
1762 return TRUE; /* Nothing to do. */
1763
dc810e39 1764 cached_size *= sizeof (aout_symbol_type);
a50b1753 1765 cached = (aout_symbol_type *) bfd_zmalloc (cached_size);
87b32780 1766 if (cached == NULL)
b34976b6 1767 return FALSE;
252b5132
RH		 1768
1769 /* Convert from external symbol information to internal. */
116c20d2 1770 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 1771 (abfd, cached,
1772 obj_aout_external_syms (abfd),
1773 obj_aout_external_sym_count (abfd),
1774 obj_aout_external_strings (abfd),
1775 obj_aout_external_string_size (abfd),
b34976b6 1776 FALSE)))
252b5132
RH		 1777 {
1778 free (cached);
b34976b6 1779 return FALSE;
252b5132
RH		 1780 }
1781
1782 bfd_get_symcount (abfd) = obj_aout_external_sym_count (abfd);
1783
1784 obj_aout_symbols (abfd) = cached;
1785
1786 /* It is very likely that anybody who calls this function will not
1787 want the external symbol information, so if it was allocated
1788 because of our call to aout_get_external_symbols, we free it up
1789 right away to save space. */
116c20d2
NC		 1790 if (old_external_syms == NULL
1791 && obj_aout_external_syms (abfd) != NULL)
252b5132
RH		 1792 {
1793#ifdef USE_MMAP
1794 bfd_free_window (&obj_aout_sym_window (abfd));
1795#else
1796 free (obj_aout_external_syms (abfd));
1797#endif
1798 obj_aout_external_syms (abfd) = NULL;
1799 }
1800
b34976b6 1801 return TRUE;
252b5132
RH		 1802}
1803\f
1804/* We use a hash table when writing out symbols so that we only write
1805 out a particular string once. This helps particularly when the
1806 linker writes out stabs debugging entries, because each different
1807 contributing object file tends to have many duplicate stabs
1808 strings.
1809
1810 This hash table code breaks dbx on SunOS 4.1.3, so we don't do it
1811 if BFD_TRADITIONAL_FORMAT is set. */
1812
252b5132
RH		 1813/* Get the index of a string in a strtab, adding it if it is not
1814 already present. */
1815
116c20d2
NC		 1816static inline bfd_size_type
1817add_to_stringtab (bfd *abfd,
1818 struct bfd_strtab_hash *tab,
1819 const char *str,
1820 bfd_boolean copy)
252b5132 1821{
b34976b6 1822 bfd_boolean hash;
91d6fa6a 1823 bfd_size_type str_index;
252b5132
RH		 1824
1825 /* An index of 0 always means the empty string. */
1826 if (str == 0 || *str == '\0')
1827 return 0;
1828
1829 /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx
1830 doesn't understand a hashed string table. */
b34976b6 1831 hash = TRUE;
252b5132 1832 if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
b34976b6 1833 hash = FALSE;
252b5132 1834
91d6fa6a 1835 str_index = _bfd_stringtab_add (tab, str, hash, copy);
252b5132 1836
91d6fa6a 1837 if (str_index != (bfd_size_type) -1)
116c20d2
NC		 1838 /* Add BYTES_IN_WORD to the return value to account for the
1839 space taken up by the string table size. */
91d6fa6a 1840 str_index += BYTES_IN_WORD;
252b5132 1841
91d6fa6a 1842 return str_index;
252b5132
RH		 1843}
1844
1845/* Write out a strtab. ABFD is already at the right location in the
1846 file. */
1847
b34976b6 1848static bfd_boolean
116c20d2 1849emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab)
252b5132
RH		 1850{
1851 bfd_byte buffer[BYTES_IN_WORD];
dc810e39 1852 bfd_size_type amt = BYTES_IN_WORD;
252b5132
RH		 1853
1854 /* The string table starts with the size. */
1855 PUT_WORD (abfd, _bfd_stringtab_size (tab) + BYTES_IN_WORD, buffer);
116c20d2 1856 if (bfd_bwrite ((void *) buffer, amt, abfd) != amt)
b34976b6 1857 return FALSE;
252b5132
RH		 1858
1859 return _bfd_stringtab_emit (abfd, tab);
1860}
1861\f
b34976b6 1862bfd_boolean
116c20d2 1863NAME (aout, write_syms) (bfd *abfd)
252b5132
RH		 1864{
1865 unsigned int count ;
1866 asymbol **generic = bfd_get_outsymbols (abfd);
1867 struct bfd_strtab_hash *strtab;
1868
1869 strtab = _bfd_stringtab_init ();
1870 if (strtab == NULL)
b34976b6 1871 return FALSE;
252b5132
RH		 1872
1873 for (count = 0; count < bfd_get_symcount (abfd); count++)
1874 {
1875 asymbol *g = generic[count];
1876 bfd_size_type indx;
1877 struct external_nlist nsp;
dc810e39 1878 bfd_size_type amt;
252b5132 1879
b34976b6 1880 indx = add_to_stringtab (abfd, strtab, g->name, FALSE);
252b5132
RH		 1881 if (indx == (bfd_size_type) -1)
1882 goto error_return;
1883 PUT_WORD (abfd, indx, (bfd_byte *) nsp.e_strx);
1884
923f08ff 1885 if (bfd_asymbol_flavour (g) == abfd->xvec->flavour)
252b5132 1886 {
923f08ff
AM		 1887 H_PUT_16 (abfd, aout_symbol (g)->desc, nsp.e_desc);
1888 H_PUT_8 (abfd, aout_symbol (g)->other, nsp.e_other);
1889 H_PUT_8 (abfd, aout_symbol (g)->type, nsp.e_type);
252b5132
RH		 1890 }
1891 else
1892 {
dc810e39
AM		 1893 H_PUT_16 (abfd, 0, nsp.e_desc);
1894 H_PUT_8 (abfd, 0, nsp.e_other);
1895 H_PUT_8 (abfd, 0, nsp.e_type);
252b5132
RH		 1896 }
1897
1898 if (! translate_to_native_sym_flags (abfd, g, &nsp))
1899 goto error_return;
1900
dc810e39 1901 amt = EXTERNAL_NLIST_SIZE;
116c20d2 1902 if (bfd_bwrite ((void *) &nsp, amt, abfd) != amt)
252b5132
RH		 1903 goto error_return;
1904
1905 /* NB: `KEEPIT' currently overlays `udata.p', so set this only
1906 here, at the end. */
1907 g->KEEPIT = count;
1908 }
1909
1910 if (! emit_stringtab (abfd, strtab))
1911 goto error_return;
1912
1913 _bfd_stringtab_free (strtab);
1914
b34976b6 1915 return TRUE;
252b5132
RH		 1916
1917error_return:
1918 _bfd_stringtab_free (strtab);
b34976b6 1919 return FALSE;
252b5132 1920}
252b5132
RH		 1921\f
1922long
116c20d2 1923NAME (aout, canonicalize_symtab) (bfd *abfd, asymbol **location)
252b5132 1924{
116c20d2
NC		 1925 unsigned int counter = 0;
1926 aout_symbol_type *symbase;
252b5132 1927
116c20d2
NC		 1928 if (!NAME (aout, slurp_symbol_table) (abfd))
1929 return -1;
252b5132 1930
116c20d2
NC		 1931 for (symbase = obj_aout_symbols (abfd);
1932 counter++ < bfd_get_symcount (abfd);
1933 )
1934 *(location++) = (asymbol *) (symbase++);
1935 *location++ =0;
1936 return bfd_get_symcount (abfd);
252b5132 1937}
252b5132 1938\f
f7c33884 1939/* Standard reloc stuff. */
0ef5a5bd 1940/* Output standard relocation information to a file in target byte order. */
252b5132 1941
116c20d2
NC		 1942extern void NAME (aout, swap_std_reloc_out)
1943 (bfd *, arelent *, struct reloc_std_external *);
252b5132
RH		 1944
1945void
116c20d2
NC		 1946NAME (aout, swap_std_reloc_out) (bfd *abfd,
1947 arelent *g,
1948 struct reloc_std_external *natptr)
252b5132
RH		 1949{
1950 int r_index;
1951 asymbol *sym = *(g->sym_ptr_ptr);
1952 int r_extern;
1953 unsigned int r_length;
1954 int r_pcrel;
1955 int r_baserel, r_jmptable, r_relative;
1956 asection *output_section = sym->section->output_section;
1957
923f08ff 1958 PUT_WORD (abfd, g->address, natptr->r_address);
252b5132 1959
e2996cc3 1960 BFD_ASSERT (g->howto != NULL);
f7c33884
NC		 1961 r_length = g->howto->size ; /* Size as a power of two. */
1962 r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */
252b5132
RH		 1963 /* XXX This relies on relocs coming from a.out files. */
1964 r_baserel = (g->howto->type & 8) != 0;
1965 r_jmptable = (g->howto->type & 16) != 0;
1966 r_relative = (g->howto->type & 32) != 0;
1967
f7c33884 1968 /* Name was clobbered by aout_write_syms to be symbol index. */
252b5132
RH		 1969
1970 /* If this relocation is relative to a symbol then set the
1971 r_index to the symbols index, and the r_extern bit.
1972
1973 Absolute symbols can come in in two ways, either as an offset
1974 from the abs section, or as a symbol which has an abs value.
f7c33884 1975 check for that here. */
252b5132 1976
252b5132
RH		 1977 if (bfd_is_com_section (output_section)
1978 || bfd_is_abs_section (output_section)
22184a77
NC		 1979 || bfd_is_und_section (output_section)
1980 /* PR gas/3041 a.out relocs against weak symbols
1981 must be treated as if they were against externs. */
1982 || (sym->flags & BSF_WEAK))
252b5132
RH		 1983 {
1984 if (bfd_abs_section_ptr->symbol == sym)
f7c33884
NC		 1985 {
1986 /* Whoops, looked like an abs symbol, but is
1987 really an offset from the abs section. */
1988 r_index = N_ABS;
1989 r_extern = 0;
1990 }
252b5132 1991 else
f7c33884
NC		 1992 {
1993 /* Fill in symbol. */
1994 r_extern = 1;
1995 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
1996 }
252b5132
RH		 1997 }
1998 else
1999 {
f7c33884 2000 /* Just an ordinary section. */
252b5132
RH		 2001 r_extern = 0;
2002 r_index = output_section->target_index;
2003 }
2004
f7c33884 2005 /* Now the fun stuff. */
923f08ff
AM		 2006 if (bfd_header_big_endian (abfd))
2007 {
252b5132
RH		 2008 natptr->r_index[0] = r_index >> 16;
2009 natptr->r_index[1] = r_index >> 8;
2010 natptr->r_index[2] = r_index;
923f08ff
AM		 2011 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
2012 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
2013 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
2014 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
2015 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
2016 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
2017 }
2018 else
2019 {
2020 natptr->r_index[2] = r_index >> 16;
2021 natptr->r_index[1] = r_index >> 8;
2022 natptr->r_index[0] = r_index;
2023 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
2024 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
2025 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
2026 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
2027 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
2028 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
2029 }
252b5132
RH		 2030}
2031
f7c33884 2032/* Extended stuff. */
0ef5a5bd 2033/* Output extended relocation information to a file in target byte order. */
252b5132 2034
116c20d2
NC		 2035extern void NAME (aout, swap_ext_reloc_out)
2036 (bfd *, arelent *, struct reloc_ext_external *);
252b5132
RH		 2037
2038void
116c20d2
NC		 2039NAME (aout, swap_ext_reloc_out) (bfd *abfd,
2040 arelent *g,
2041 struct reloc_ext_external *natptr)
252b5132
RH		 2042{
2043 int r_index;
2044 int r_extern;
2045 unsigned int r_type;
dc810e39 2046 bfd_vma r_addend;
252b5132
RH		 2047 asymbol *sym = *(g->sym_ptr_ptr);
2048 asection *output_section = sym->section->output_section;
2049
2050 PUT_WORD (abfd, g->address, natptr->r_address);
2051
2052 r_type = (unsigned int) g->howto->type;
2053
2054 r_addend = g->addend;
2055 if ((sym->flags & BSF_SECTION_SYM) != 0)
2056 r_addend += (*(g->sym_ptr_ptr))->section->output_section->vma;
2057
2058 /* If this relocation is relative to a symbol then set the
2059 r_index to the symbols index, and the r_extern bit.
2060
2061 Absolute symbols can come in in two ways, either as an offset
2062 from the abs section, or as a symbol which has an abs value.
2063 check for that here. */
252b5132
RH		 2064 if (bfd_is_abs_section (bfd_get_section (sym)))
2065 {
2066 r_extern = 0;
2067 r_index = N_ABS;
2068 }
2069 else if ((sym->flags & BSF_SECTION_SYM) == 0)
2070 {
2071 if (bfd_is_und_section (bfd_get_section (sym))
2072 || (sym->flags & BSF_GLOBAL) != 0)
2073 r_extern = 1;
2074 else
2075 r_extern = 0;
2076 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
2077 }
2078 else
2079 {
f7c33884 2080 /* Just an ordinary section. */
252b5132
RH		 2081 r_extern = 0;
2082 r_index = output_section->target_index;
2083 }
2084
f7c33884 2085 /* Now the fun stuff. */
923f08ff
AM		 2086 if (bfd_header_big_endian (abfd))
2087 {
2088 natptr->r_index[0] = r_index >> 16;
2089 natptr->r_index[1] = r_index >> 8;
2090 natptr->r_index[2] = r_index;
2091 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
2092 | (r_type << RELOC_EXT_BITS_TYPE_SH_BIG));
2093 }
2094 else
2095 {
2096 natptr->r_index[2] = r_index >> 16;
2097 natptr->r_index[1] = r_index >> 8;
2098 natptr->r_index[0] = r_index;
2099 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
2100 | (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE));
2101 }
252b5132
RH		 2102
2103 PUT_WORD (abfd, r_addend, natptr->r_addend);
2104}
2105
2106/* BFD deals internally with all things based from the section they're
2107 in. so, something in 10 bytes into a text section with a base of
2108 50 would have a symbol (.text+10) and know .text vma was 50.
2109
2110 Aout keeps all it's symbols based from zero, so the symbol would
2111 contain 60. This macro subs the base of each section from the value
923f08ff
AM		 2112 to give the true offset from the section. */
2113
2114#define MOVE_ADDRESS(ad) \
2115 if (r_extern) \
2116 { \
2117 /* Undefined symbol. */ \
2118 cache_ptr->sym_ptr_ptr = symbols + r_index; \
252b5132 2119 cache_ptr->addend = ad; \
252b5132 2120 } \
923f08ff
AM		 2121 else \
2122 { \
2123 /* Defined, section relative. Replace symbol with pointer to \
2124 symbol which points to section. */ \
2125 switch (r_index) \
2126 { \
2127 case N_TEXT: \
2128 case N_TEXT | N_EXT: \
2129 cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \
2130 cache_ptr->addend = ad - su->textsec->vma; \
2131 break; \
2132 case N_DATA: \
2133 case N_DATA | N_EXT: \
2134 cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \
2135 cache_ptr->addend = ad - su->datasec->vma; \
2136 break; \
2137 case N_BSS: \
2138 case N_BSS | N_EXT: \
2139 cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \
2140 cache_ptr->addend = ad - su->bsssec->vma; \
2141 break; \
2142 default: \
2143 case N_ABS: \
2144 case N_ABS | N_EXT: \
2145 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
2146 cache_ptr->addend = ad; \
2147 break; \
2148 } \
2149 }
252b5132
RH		 2150
2151void
116c20d2
NC		 2152NAME (aout, swap_ext_reloc_in) (bfd *abfd,
2153 struct reloc_ext_external *bytes,
2154 arelent *cache_ptr,
2155 asymbol **symbols,
2156 bfd_size_type symcount)
252b5132
RH		 2157{
2158 unsigned int r_index;
2159 int r_extern;
2160 unsigned int r_type;
2161 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2162
2163 cache_ptr->address = (GET_SWORD (abfd, bytes->r_address));
2164
f7c33884 2165 /* Now the fun stuff. */
923f08ff
AM		 2166 if (bfd_header_big_endian (abfd))
2167 {
d45913a0
DA		 2168 r_index = (((unsigned int) bytes->r_index[0] << 16)
2169 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2170 | bytes->r_index[2]);
2171 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
2172 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
2173 >> RELOC_EXT_BITS_TYPE_SH_BIG);
2174 }
2175 else
2176 {
d45913a0
DA		 2177 r_index = (((unsigned int) bytes->r_index[2] << 16)
2178 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2179 | bytes->r_index[0]);
2180 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
2181 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
2182 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
2183 }
252b5132 2184
ad756e3f
AM		 2185 if (r_type < TABLE_SIZE (howto_table_ext))
2186 cache_ptr->howto = howto_table_ext + r_type;
2187 else
2188 cache_ptr->howto = NULL;
252b5132
RH		 2189
2190 /* Base relative relocs are always against the symbol table,
2191 regardless of the setting of r_extern. r_extern just reflects
2192 whether the symbol the reloc is against is local or global. */
d45913a0
DA		 2193 if (r_type == (unsigned int) RELOC_BASE10
2194 || r_type == (unsigned int) RELOC_BASE13
2195 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 2196 r_extern = 1;
2197
2198 if (r_extern && r_index > symcount)
2199 {
2200 /* We could arrange to return an error, but it might be useful
2201 to see the file even if it is bad. */
2202 r_extern = 0;
2203 r_index = N_ABS;
2204 }
2205
923f08ff 2206 MOVE_ADDRESS (GET_SWORD (abfd, bytes->r_addend));
252b5132
RH		 2207}
2208
2209void
116c20d2
NC		 2210NAME (aout, swap_std_reloc_in) (bfd *abfd,
2211 struct reloc_std_external *bytes,
2212 arelent *cache_ptr,
2213 asymbol **symbols,
2214 bfd_size_type symcount)
252b5132
RH		 2215{
2216 unsigned int r_index;
2217 int r_extern;
2218 unsigned int r_length;
2219 int r_pcrel;
2220 int r_baserel, r_jmptable, r_relative;
2221 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2222 unsigned int howto_idx;
2223
dc810e39 2224 cache_ptr->address = H_GET_32 (abfd, bytes->r_address);
252b5132 2225
f7c33884 2226 /* Now the fun stuff. */
923f08ff
AM		 2227 if (bfd_header_big_endian (abfd))
2228 {
d45913a0
DA		 2229 r_index = (((unsigned int) bytes->r_index[0] << 16)
2230 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2231 | bytes->r_index[2]);
2232 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
2233 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
2234 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
2235 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
2236 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
2237 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
2238 >> RELOC_STD_BITS_LENGTH_SH_BIG);
2239 }
2240 else
2241 {
d45913a0
DA		 2242 r_index = (((unsigned int) bytes->r_index[2] << 16)
2243 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2244 | bytes->r_index[0]);
2245 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
2246 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
2247 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE));
2248 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE));
2249 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_LITTLE));
2250 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
2251 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
2252 }
252b5132 2253
923f08ff
AM		 2254 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
2255 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 2256 if (howto_idx < TABLE_SIZE (howto_table_std))
2257 {
2258 cache_ptr->howto = howto_table_std + howto_idx;
2259 if (cache_ptr->howto->type == (unsigned int) -1)
2260 cache_ptr->howto = NULL;
2261 }
2262 else
2263 cache_ptr->howto = NULL;
252b5132
RH		 2264
2265 /* Base relative relocs are always against the symbol table,
2266 regardless of the setting of r_extern. r_extern just reflects
2267 whether the symbol the reloc is against is local or global. */
2268 if (r_baserel)
2269 r_extern = 1;
2270
2271 if (r_extern && r_index > symcount)
2272 {
2273 /* We could arrange to return an error, but it might be useful
2274 to see the file even if it is bad. */
2275 r_extern = 0;
2276 r_index = N_ABS;
2277 }
2278
923f08ff 2279 MOVE_ADDRESS (0);
252b5132
RH		 2280}
2281
2282/* Read and swap the relocs for a section. */
2283
b34976b6 2284bfd_boolean
116c20d2 2285NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols)
252b5132 2286{
dc810e39 2287 bfd_size_type count;
252b5132 2288 bfd_size_type reloc_size;
116c20d2 2289 void * relocs;
252b5132
RH		 2290 arelent *reloc_cache;
2291 size_t each_size;
2292 unsigned int counter = 0;
2293 arelent *cache_ptr;
dc810e39 2294 bfd_size_type amt;
252b5132
RH		 2295
2296 if (asect->relocation)
b34976b6 2297 return TRUE;
252b5132
RH		 2298
2299 if (asect->flags & SEC_CONSTRUCTOR)
b34976b6 2300 return TRUE;
252b5132
RH		 2301
2302 if (asect == obj_datasec (abfd))
923f08ff 2303 reloc_size = exec_hdr (abfd)->a_drsize;
252b5132 2304 else if (asect == obj_textsec (abfd))
923f08ff 2305 reloc_size = exec_hdr (abfd)->a_trsize;
252b5132
RH		 2306 else if (asect == obj_bsssec (abfd))
2307 reloc_size = 0;
2308 else
2309 {
2310 bfd_set_error (bfd_error_invalid_operation);
b34976b6 2311 return FALSE;
252b5132
RH		 2312 }
2313
078c4bfc
MS		 2314 if (reloc_size == 0)
2315 return TRUE; /* Nothing to be done. */
2316
252b5132 2317 if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
b34976b6 2318 return FALSE;
252b5132
RH		 2319
2320 each_size = obj_reloc_entry_size (abfd);
2321
2322 count = reloc_size / each_size;
078c4bfc
MS		 2323 if (count == 0)
2324 return TRUE; /* Nothing to be done. */
252b5132 2325
dc810e39 2326 amt = count * sizeof (arelent);
a50b1753 2327 reloc_cache = (arelent *) bfd_zmalloc (amt);
078c4bfc 2328 if (reloc_cache == NULL)
b34976b6 2329 return FALSE;
252b5132 2330
dc810e39 2331 relocs = bfd_malloc (reloc_size);
078c4bfc 2332 if (relocs == NULL)
252b5132
RH		 2333 {
2334 free (reloc_cache);
b34976b6 2335 return FALSE;
252b5132
RH		 2336 }
2337
dc810e39 2338 if (bfd_bread (relocs, reloc_size, abfd) != reloc_size)
252b5132
RH		 2339 {
2340 free (relocs);
2341 free (reloc_cache);
b34976b6 2342 return FALSE;
252b5132
RH		 2343 }
2344
2345 cache_ptr = reloc_cache;
2346 if (each_size == RELOC_EXT_SIZE)
2347 {
dc810e39 2348 struct reloc_ext_external *rptr = (struct reloc_ext_external *) relocs;
252b5132
RH		 2349
2350 for (; counter < count; counter++, rptr++, cache_ptr++)
1642229e 2351 MY_swap_ext_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2352 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2353 }
2354 else
2355 {
dc810e39 2356 struct reloc_std_external *rptr = (struct reloc_std_external *) relocs;
252b5132
RH		 2357
2358 for (; counter < count; counter++, rptr++, cache_ptr++)
2359 MY_swap_std_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2360 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2361 }
2362
2363 free (relocs);
2364
2365 asect->relocation = reloc_cache;
2366 asect->reloc_count = cache_ptr - reloc_cache;
2367
b34976b6 2368 return TRUE;
252b5132
RH		 2369}
2370
2371/* Write out a relocation section into an object file. */
2372
b34976b6 2373bfd_boolean
116c20d2 2374NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section)
252b5132
RH		 2375{
2376 arelent **generic;
2377 unsigned char *native, *natptr;
2378 size_t each_size;
2379
2380 unsigned int count = section->reloc_count;
dc810e39 2381 bfd_size_type natsize;
252b5132
RH		 2382
2383 if (count == 0 || section->orelocation == NULL)
b34976b6 2384 return TRUE;
252b5132
RH		 2385
2386 each_size = obj_reloc_entry_size (abfd);
dc810e39 2387 natsize = (bfd_size_type) each_size * count;
a50b1753 2388 native = (unsigned char *) bfd_zalloc (abfd, natsize);
252b5132 2389 if (!native)
b34976b6 2390 return FALSE;
252b5132
RH		 2391
2392 generic = section->orelocation;
2393
2394 if (each_size == RELOC_EXT_SIZE)
2395 {
2396 for (natptr = native;
2397 count != 0;
2398 --count, natptr += each_size, ++generic)
e2996cc3 2399 {
92744f05
NC		 2400 /* PR 20921: If the howto field has not been initialised then skip
2401 this reloc.
2402 PR 20929: Similarly for the symbol field. */
2403 if ((*generic)->howto == NULL
2404 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2405 {
2406 bfd_set_error (bfd_error_invalid_operation);
92744f05
NC		 2407 _bfd_error_handler (_("\
2408%B: attempt to write out unknown reloc type"), abfd);
e2996cc3
NC		 2409 return FALSE;
2410 }
2411 MY_swap_ext_reloc_out (abfd, *generic,
2412 (struct reloc_ext_external *) natptr);
2413 }
252b5132
RH		 2414 }
2415 else
2416 {
2417 for (natptr = native;
2418 count != 0;
2419 --count, natptr += each_size, ++generic)
e2996cc3 2420 {
92744f05
NC		 2421 if ((*generic)->howto == NULL
2422 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2423 {
2424 bfd_set_error (bfd_error_invalid_operation);
92744f05
NC		 2425 _bfd_error_handler (_("\
2426%B: attempt to write out unknown reloc type"), abfd);
e2996cc3
NC		 2427 return FALSE;
2428 }
2429 MY_swap_std_reloc_out (abfd, *generic,
2430 (struct reloc_std_external *) natptr);
2431 }
252b5132
RH		 2432 }
2433
116c20d2 2434 if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
dc810e39 2435 {
923f08ff 2436 bfd_release (abfd, native);
b34976b6 2437 return FALSE;
dc810e39 2438 }
252b5132
RH		 2439 bfd_release (abfd, native);
2440
b34976b6 2441 return TRUE;
252b5132
RH		 2442}
2443
f7c33884
NC		 2444/* This is stupid. This function should be a boolean predicate. */
2445
252b5132 2446long
116c20d2
NC		 2447NAME (aout, canonicalize_reloc) (bfd *abfd,
2448 sec_ptr section,
2449 arelent **relptr,
2450 asymbol **symbols)
252b5132
RH		 2451{
2452 arelent *tblptr = section->relocation;
2453 unsigned int count;
2454
2455 if (section == obj_bsssec (abfd))
2456 {
2457 *relptr = NULL;
2458 return 0;
2459 }
2460
116c20d2 2461 if (!(tblptr || NAME (aout, slurp_reloc_table) (abfd, section, symbols)))
252b5132
RH		 2462 return -1;
2463
923f08ff
AM		 2464 if (section->flags & SEC_CONSTRUCTOR)
2465 {
2466 arelent_chain *chain = section->constructor_chain;
2467 for (count = 0; count < section->reloc_count; count ++)
2468 {
2469 *relptr ++ = &chain->relent;
2470 chain = chain->next;
2471 }
252b5132 2472 }
923f08ff
AM		 2473 else
2474 {
2475 tblptr = section->relocation;
252b5132 2476
923f08ff
AM		 2477 for (count = 0; count++ < section->reloc_count; )
2478 {
2479 *relptr++ = tblptr++;
2480 }
2481 }
252b5132
RH		 2482 *relptr = 0;
2483
2484 return section->reloc_count;
2485}
2486
2487long
116c20d2 2488NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect)
252b5132 2489{
923f08ff
AM		 2490 if (bfd_get_format (abfd) != bfd_object)
2491 {
2492 bfd_set_error (bfd_error_invalid_operation);
2493 return -1;
2494 }
f7c33884 2495
923f08ff 2496 if (asect->flags & SEC_CONSTRUCTOR)
116c20d2 2497 return sizeof (arelent *) * (asect->reloc_count + 1);
252b5132
RH		 2498
2499 if (asect == obj_datasec (abfd))
116c20d2
NC		 2500 return sizeof (arelent *)
2501 * ((exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd))
2502 + 1);
252b5132
RH		 2503
2504 if (asect == obj_textsec (abfd))
116c20d2
NC		 2505 return sizeof (arelent *)
2506 * ((exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd))
2507 + 1);
252b5132
RH		 2508
2509 if (asect == obj_bsssec (abfd))
2510 return sizeof (arelent *);
2511
2512 if (asect == obj_bsssec (abfd))
2513 return 0;
2514
2515 bfd_set_error (bfd_error_invalid_operation);
2516 return -1;
2517}
252b5132
RH		 2518\f
2519long
116c20d2 2520NAME (aout, get_symtab_upper_bound) (bfd *abfd)
252b5132 2521{
116c20d2 2522 if (!NAME (aout, slurp_symbol_table) (abfd))
252b5132
RH		 2523 return -1;
2524
2525 return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
2526}
2527
1725a96e 2528alent *
116c20d2
NC		 2529NAME (aout, get_lineno) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2530 asymbol *ignore_symbol ATTRIBUTE_UNUSED)
252b5132 2531{
116c20d2 2532 return NULL;
252b5132
RH		 2533}
2534
252b5132 2535void
116c20d2
NC		 2536NAME (aout, get_symbol_info) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2537 asymbol *symbol,
2538 symbol_info *ret)
252b5132
RH		 2539{
2540 bfd_symbol_info (symbol, ret);
2541
2542 if (ret->type == '?')
2543 {
923f08ff 2544 int type_code = aout_symbol (symbol)->type & 0xff;
252b5132
RH		 2545 const char *stab_name = bfd_get_stab_name (type_code);
2546 static char buf[10];
2547
2548 if (stab_name == NULL)
2549 {
e60b52c6 2550 sprintf (buf, "(%d)", type_code);
252b5132
RH		 2551 stab_name = buf;
2552 }
2553 ret->type = '-';
2554 ret->stab_type = type_code;
923f08ff
AM		 2555 ret->stab_other = (unsigned) (aout_symbol (symbol)->other & 0xff);
2556 ret->stab_desc = (unsigned) (aout_symbol (symbol)->desc & 0xffff);
252b5132
RH		 2557 ret->stab_name = stab_name;
2558 }
2559}
2560
252b5132 2561void
116c20d2
NC		 2562NAME (aout, print_symbol) (bfd *abfd,
2563 void * afile,
2564 asymbol *symbol,
2565 bfd_print_symbol_type how)
252b5132
RH		 2566{
2567 FILE *file = (FILE *)afile;
2568
923f08ff 2569 switch (how)
252b5132 2570 {
923f08ff
AM		 2571 case bfd_print_symbol_name:
2572 if (symbol->name)
2573 fprintf (file,"%s", symbol->name);
2574 break;
2575 case bfd_print_symbol_more:
2576 fprintf (file,"%4x %2x %2x",
2577 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2578 (unsigned) (aout_symbol (symbol)->other & 0xff),
2579 (unsigned) (aout_symbol (symbol)->type));
2580 break;
2581 case bfd_print_symbol_all:
2582 {
2583 const char *section_name = symbol->section->name;
252b5132 2584
116c20d2 2585 bfd_print_symbol_vandf (abfd, (void *)file, symbol);
252b5132 2586
923f08ff
AM		 2587 fprintf (file," %-5s %04x %02x %02x",
2588 section_name,
2589 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2590 (unsigned) (aout_symbol (symbol)->other & 0xff),
2591 (unsigned) (aout_symbol (symbol)->type & 0xff));
2592 if (symbol->name)
2593 fprintf (file," %s", symbol->name);
2594 }
2595 break;
252b5132 2596 }
252b5132
RH		 2597}
2598
2599/* If we don't have to allocate more than 1MB to hold the generic
2600 symbols, we use the generic minisymbol methord: it's faster, since
2601 it only translates the symbols once, not multiple times. */
2602#define MINISYM_THRESHOLD (1000000 / sizeof (asymbol))
2603
2604/* Read minisymbols. For minisymbols, we use the unmodified a.out
2605 symbols. The minisymbol_to_symbol function translates these into
2606 BFD asymbol structures. */
2607
2608long
116c20d2
NC		 2609NAME (aout, read_minisymbols) (bfd *abfd,
2610 bfd_boolean dynamic,
2611 void * *minisymsp,
2612 unsigned int *sizep)
252b5132
RH		 2613{
2614 if (dynamic)
116c20d2
NC		 2615 /* We could handle the dynamic symbols here as well, but it's
2616 easier to hand them off. */
2617 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
252b5132
RH		 2618
2619 if (! aout_get_external_symbols (abfd))
2620 return -1;
2621
2622 if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2623 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
2624
116c20d2 2625 *minisymsp = (void *) obj_aout_external_syms (abfd);
252b5132
RH		 2626
2627 /* By passing the external symbols back from this routine, we are
2628 giving up control over the memory block. Clear
2629 obj_aout_external_syms, so that we do not try to free it
2630 ourselves. */
2631 obj_aout_external_syms (abfd) = NULL;
2632
2633 *sizep = EXTERNAL_NLIST_SIZE;
2634 return obj_aout_external_sym_count (abfd);
2635}
2636
2637/* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
2638 unmodified a.out symbol. The SYM argument is a structure returned
2639 by bfd_make_empty_symbol, which we fill in here. */
2640
2641asymbol *
116c20d2
NC		 2642NAME (aout, minisymbol_to_symbol) (bfd *abfd,
2643 bfd_boolean dynamic,
2644 const void * minisym,
2645 asymbol *sym)
252b5132
RH		 2646{
2647 if (dynamic
2648 || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2649 return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
2650
2651 memset (sym, 0, sizeof (aout_symbol_type));
2652
2653 /* We call translate_symbol_table to translate a single symbol. */
116c20d2 2654 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 2655 (abfd,
2656 (aout_symbol_type *) sym,
2657 (struct external_nlist *) minisym,
2658 (bfd_size_type) 1,
2659 obj_aout_external_strings (abfd),
2660 obj_aout_external_string_size (abfd),
b34976b6 2661 FALSE)))
252b5132
RH		 2662 return NULL;
2663
2664 return sym;
2665}
2666
f7c33884
NC		 2667/* Provided a BFD, a section and an offset into the section, calculate
2668 and return the name of the source file and the line nearest to the
2669 wanted location. */
252b5132 2670
b34976b6 2671bfd_boolean
116c20d2 2672NAME (aout, find_nearest_line) (bfd *abfd,
116c20d2 2673 asymbol **symbols,
fb167eb2 2674 asection *section,
116c20d2
NC		 2675 bfd_vma offset,
2676 const char **filename_ptr,
2677 const char **functionname_ptr,
fb167eb2
AM		 2678 unsigned int *line_ptr,
2679 unsigned int *disriminator_ptr)
252b5132 2680{
f7c33884 2681 /* Run down the file looking for the filename, function and linenumber. */
252b5132 2682 asymbol **p;
dc810e39
AM		 2683 const char *directory_name = NULL;
2684 const char *main_file_name = NULL;
2685 const char *current_file_name = NULL;
116c20d2 2686 const char *line_file_name = NULL; /* Value of current_file_name at line number. */
dc810e39 2687 const char *line_directory_name = NULL; /* Value of directory_name at line number. */
252b5132
RH		 2688 bfd_vma low_line_vma = 0;
2689 bfd_vma low_func_vma = 0;
2690 asymbol *func = 0;
dc810e39 2691 bfd_size_type filelen, funclen;
252b5132
RH		 2692 char *buf;
2693
2694 *filename_ptr = abfd->filename;
50455f1a 2695 *functionname_ptr = NULL;
252b5132 2696 *line_ptr = 0;
fb167eb2
AM		 2697 if (disriminator_ptr)
2698 *disriminator_ptr = 0;
f7c33884 2699
116c20d2 2700 if (symbols != NULL)
923f08ff
AM		 2701 {
2702 for (p = symbols; *p; p++)
2703 {
2704 aout_symbol_type *q = (aout_symbol_type *) (*p);
2705 next:
2706 switch (q->type)
2707 {
2708 case N_TEXT:
2709 /* If this looks like a file name symbol, and it comes after
2710 the line number we have found so far, but before the
2711 offset, then we have probably not found the right line
2712 number. */
2713 if (q->symbol.value <= offset
2714 && ((q->symbol.value > low_line_vma
2715 && (line_file_name != NULL
2716 || *line_ptr != 0))
2717 || (q->symbol.value > low_func_vma
2718 && func != NULL)))
2719 {
2720 const char *symname;
252b5132 2721
923f08ff
AM		 2722 symname = q->symbol.name;
2723 if (strcmp (symname + strlen (symname) - 2, ".o") == 0)
2724 {
2725 if (q->symbol.value > low_line_vma)
2726 {
2727 *line_ptr = 0;
2728 line_file_name = NULL;
2729 }
2730 if (q->symbol.value > low_func_vma)
2731 func = NULL;
2732 }
2733 }
2734 break;
252b5132 2735
923f08ff
AM		 2736 case N_SO:
2737 /* If this symbol is less than the offset, but greater than
2738 the line number we have found so far, then we have not
2739 found the right line number. */
2740 if (q->symbol.value <= offset)
2741 {
2742 if (q->symbol.value > low_line_vma)
2743 {
2744 *line_ptr = 0;
2745 line_file_name = NULL;
2746 }
2747 if (q->symbol.value > low_func_vma)
2748 func = NULL;
2749 }
252b5132 2750
923f08ff
AM		 2751 main_file_name = current_file_name = q->symbol.name;
2752 /* Look ahead to next symbol to check if that too is an N_SO. */
2753 p++;
2754 if (*p == NULL)
c3864421 2755 goto done;
923f08ff
AM		 2756 q = (aout_symbol_type *) (*p);
2757 if (q->type != (int)N_SO)
2758 goto next;
2759
2760 /* Found a second N_SO First is directory; second is filename. */
2761 directory_name = current_file_name;
2762 main_file_name = current_file_name = q->symbol.name;
2763 if (obj_textsec (abfd) != section)
2764 goto done;
2765 break;
2766 case N_SOL:
2767 current_file_name = q->symbol.name;
2768 break;
252b5132 2769
923f08ff 2770 case N_SLINE:
252b5132 2771
923f08ff
AM		 2772 case N_DSLINE:
2773 case N_BSLINE:
2774 /* We'll keep this if it resolves nearer than the one we have
2775 already. */
2776 if (q->symbol.value >= low_line_vma
2777 && q->symbol.value <= offset)
2778 {
2779 *line_ptr = q->desc;
2780 low_line_vma = q->symbol.value;
2781 line_file_name = current_file_name;
2782 line_directory_name = directory_name;
2783 }
2784 break;
2785 case N_FUN:
2786 {
f7c33884 2787 /* We'll keep this if it is nearer than the one we have already. */
923f08ff 2788 if (q->symbol.value >= low_func_vma &&
f7c33884
NC		 2789 q->symbol.value <= offset)
2790 {
2791 low_func_vma = q->symbol.value;
2792 func = (asymbol *)q;
2793 }
923f08ff
AM		 2794 else if (q->symbol.value > offset)
2795 goto done;
2796 }
2797 break;
2798 }
252b5132 2799 }
252b5132 2800 }
252b5132
RH		 2801
2802 done:
2803 if (*line_ptr != 0)
2804 {
2805 main_file_name = line_file_name;
2806 directory_name = line_directory_name;
2807 }
2808
2809 if (main_file_name == NULL
5af11cab 2810 || IS_ABSOLUTE_PATH (main_file_name)
252b5132
RH		 2811 || directory_name == NULL)
2812 filelen = 0;
2813 else
2814 filelen = strlen (directory_name) + strlen (main_file_name);
f7c33884 2815
252b5132
RH		 2816 if (func == NULL)
2817 funclen = 0;
2818 else
2819 funclen = strlen (bfd_asymbol_name (func));
2820
2821 if (adata (abfd).line_buf != NULL)
2822 free (adata (abfd).line_buf);
f7c33884 2823
252b5132
RH		 2824 if (filelen + funclen == 0)
2825 adata (abfd).line_buf = buf = NULL;
2826 else
2827 {
a50b1753 2828 buf = (char *) bfd_malloc (filelen + funclen + 3);
252b5132
RH		 2829 adata (abfd).line_buf = buf;
2830 if (buf == NULL)
b34976b6 2831 return FALSE;
252b5132
RH		 2832 }
2833
2834 if (main_file_name != NULL)
2835 {
5af11cab 2836 if (IS_ABSOLUTE_PATH (main_file_name) || directory_name == NULL)
252b5132
RH		 2837 *filename_ptr = main_file_name;
2838 else
2839 {
50455f1a
NC		 2840 if (buf == NULL)
2841 /* PR binutils/20891: In a corrupt input file both
2842 main_file_name and directory_name can be empty... */
2843 * filename_ptr = NULL;
2844 else
2845 {
2846 snprintf (buf, filelen + 1, "%s%s", directory_name,
2847 main_file_name);
2848 *filename_ptr = buf;
2849 buf += filelen + 1;
2850 }
252b5132
RH		 2851 }
2852 }
2853
2854 if (func)
2855 {
2856 const char *function = func->name;
dc810e39 2857 char *colon;
252b5132 2858
e82ab856
NC		 2859 if (buf == NULL)
2860 {
2861 /* PR binutils/20892: In a corrupt input file func can be empty. */
2862 * functionname_ptr = NULL;
2863 return TRUE;
2864 }
252b5132
RH		 2865 /* The caller expects a symbol name. We actually have a
2866 function name, without the leading underscore. Put the
2867 underscore back in, so that the caller gets a symbol name. */
2868 if (bfd_get_symbol_leading_char (abfd) == '\0')
2869 strcpy (buf, function);
2870 else
2871 {
2872 buf[0] = bfd_get_symbol_leading_char (abfd);
2873 strcpy (buf + 1, function);
2874 }
f7c33884 2875 /* Have to remove : stuff. */
dc810e39
AM		 2876 colon = strchr (buf, ':');
2877 if (colon != NULL)
2878 *colon = '\0';
252b5132
RH		 2879 *functionname_ptr = buf;
2880 }
2881
b34976b6 2882 return TRUE;
252b5132
RH		 2883}
2884
252b5132 2885int
a6b96beb
AM		 2886NAME (aout, sizeof_headers) (bfd *abfd,
2887 struct bfd_link_info *info ATTRIBUTE_UNUSED)
252b5132 2888{
923f08ff 2889 return adata (abfd).exec_bytes_size;
252b5132
RH		 2890}
2891
2892/* Free all information we have cached for this BFD. We can always
2893 read it again later if we need it. */
2894
b34976b6 2895bfd_boolean
116c20d2 2896NAME (aout, bfd_free_cached_info) (bfd *abfd)
252b5132
RH		 2897{
2898 asection *o;
2899
920581c5
L		 2900 if (bfd_get_format (abfd) != bfd_object
2901 || abfd->tdata.aout_data == NULL)
b34976b6 2902 return TRUE;
252b5132
RH		 2903
2904#define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
2905 BFCI_FREE (obj_aout_symbols (abfd));
2906#ifdef USE_MMAP
2907 obj_aout_external_syms (abfd) = 0;
2908 bfd_free_window (&obj_aout_sym_window (abfd));
2909 bfd_free_window (&obj_aout_string_window (abfd));
2910 obj_aout_external_strings (abfd) = 0;
2911#else
2912 BFCI_FREE (obj_aout_external_syms (abfd));
2913 BFCI_FREE (obj_aout_external_strings (abfd));
2914#endif
116c20d2 2915 for (o = abfd->sections; o != NULL; o = o->next)
252b5132
RH		 2916 BFCI_FREE (o->relocation);
2917#undef BFCI_FREE
2918
b34976b6 2919 return TRUE;
252b5132
RH		 2920}
2921\f
2922/* a.out link code. */
2923
252b5132
RH		 2924/* Routine to create an entry in an a.out link hash table. */
2925
2926struct bfd_hash_entry *
116c20d2
NC		 2927NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry,
2928 struct bfd_hash_table *table,
2929 const char *string)
252b5132
RH		 2930{
2931 struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry;
2932
2933 /* Allocate the structure if it has not already been allocated by a
2934 subclass. */
116c20d2 2935 if (ret == NULL)
a50b1753
NC		 2936 ret = (struct aout_link_hash_entry *) bfd_hash_allocate (table,
2937 sizeof (* ret));
116c20d2
NC		 2938 if (ret == NULL)
2939 return NULL;
252b5132
RH		 2940
2941 /* Call the allocation method of the superclass. */
2942 ret = ((struct aout_link_hash_entry *)
2943 _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2944 table, string));
2945 if (ret)
2946 {
2947 /* Set local fields. */
b34976b6 2948 ret->written = FALSE;
252b5132
RH		 2949 ret->indx = -1;
2950 }
2951
2952 return (struct bfd_hash_entry *) ret;
2953}
2954
2955/* Initialize an a.out link hash table. */
2956
b34976b6 2957bfd_boolean
116c20d2
NC		 2958NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table,
2959 bfd *abfd,
2960 struct bfd_hash_entry *(*newfunc)
2961 (struct bfd_hash_entry *, struct bfd_hash_table *,
66eb6687
AM		 2962 const char *),
2963 unsigned int entsize)
252b5132 2964{
66eb6687 2965 return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize);
252b5132
RH		 2966}
2967
2968/* Create an a.out link hash table. */
2969
2970struct bfd_link_hash_table *
116c20d2 2971NAME (aout, link_hash_table_create) (bfd *abfd)
252b5132
RH		 2972{
2973 struct aout_link_hash_table *ret;
116c20d2 2974 bfd_size_type amt = sizeof (* ret);
252b5132 2975
a50b1753 2976 ret = (struct aout_link_hash_table *) bfd_malloc (amt);
252b5132 2977 if (ret == NULL)
116c20d2 2978 return NULL;
5ed6aba4 2979
66eb6687
AM		 2980 if (!NAME (aout, link_hash_table_init) (ret, abfd,
2981 NAME (aout, link_hash_newfunc),
2982 sizeof (struct aout_link_hash_entry)))
252b5132
RH		 2983 {
2984 free (ret);
116c20d2 2985 return NULL;
252b5132
RH		 2986 }
2987 return &ret->root;
2988}
2989
116c20d2 2990/* Add all symbols from an object file to the hash table. */
252b5132 2991
b34976b6 2992static bfd_boolean
116c20d2 2993aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 2994{
116c20d2
NC		 2995 bfd_boolean (*add_one_symbol)
2996 (struct bfd_link_info *, bfd *, const char *, flagword, asection *,
2997 bfd_vma, const char *, bfd_boolean, bfd_boolean,
2998 struct bfd_link_hash_entry **);
2999 struct external_nlist *syms;
3000 bfd_size_type sym_count;
3001 char *strings;
3002 bfd_boolean copy;
3003 struct aout_link_hash_entry **sym_hash;
3004 struct external_nlist *p;
3005 struct external_nlist *pend;
3006 bfd_size_type amt;
252b5132 3007
116c20d2
NC		 3008 syms = obj_aout_external_syms (abfd);
3009 sym_count = obj_aout_external_sym_count (abfd);
3010 strings = obj_aout_external_strings (abfd);
3011 if (info->keep_memory)
3012 copy = FALSE;
3013 else
3014 copy = TRUE;
252b5132 3015
116c20d2 3016 if (aout_backend_info (abfd)->add_dynamic_symbols != NULL)
252b5132 3017 {
116c20d2
NC		 3018 if (! ((*aout_backend_info (abfd)->add_dynamic_symbols)
3019 (abfd, info, &syms, &sym_count, &strings)))
b34976b6 3020 return FALSE;
252b5132
RH		 3021 }
3022
20c6e70e
MS		 3023 if (sym_count == 0)
3024 return TRUE; /* Nothing to do. */
3025
116c20d2
NC		 3026 /* We keep a list of the linker hash table entries that correspond
3027 to particular symbols. We could just look them up in the hash
3028 table, but keeping the list is more efficient. Perhaps this
3029 should be conditional on info->keep_memory. */
3030 amt = sym_count * sizeof (struct aout_link_hash_entry *);
a50b1753 3031 sym_hash = (struct aout_link_hash_entry **) bfd_alloc (abfd, amt);
20c6e70e 3032 if (sym_hash == NULL)
116c20d2
NC		 3033 return FALSE;
3034 obj_aout_sym_hashes (abfd) = sym_hash;
252b5132 3035
116c20d2
NC		 3036 add_one_symbol = aout_backend_info (abfd)->add_one_symbol;
3037 if (add_one_symbol == NULL)
3038 add_one_symbol = _bfd_generic_link_add_one_symbol;
252b5132 3039
116c20d2
NC		 3040 p = syms;
3041 pend = p + sym_count;
3042 for (; p < pend; p++, sym_hash++)
252b5132 3043 {
116c20d2 3044 int type;
252b5132 3045 const char *name;
116c20d2
NC		 3046 bfd_vma value;
3047 asection *section;
3048 flagword flags;
3049 const char *string;
252b5132 3050
116c20d2 3051 *sym_hash = NULL;
252b5132 3052
116c20d2 3053 type = H_GET_8 (abfd, p->e_type);
252b5132 3054
116c20d2
NC		 3055 /* Ignore debugging symbols. */
3056 if ((type & N_STAB) != 0)
3057 continue;
252b5132 3058
e517df3d 3059 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
531336e3 3060 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3061 return FALSE;
116c20d2
NC		 3062 name = strings + GET_WORD (abfd, p->e_strx);
3063 value = GET_WORD (abfd, p->e_value);
3064 flags = BSF_GLOBAL;
3065 string = NULL;
3066 switch (type)
252b5132 3067 {
116c20d2
NC		 3068 default:
3069 abort ();
f7c33884 3070
116c20d2
NC		 3071 case N_UNDF:
3072 case N_ABS:
3073 case N_TEXT:
3074 case N_DATA:
3075 case N_BSS:
3076 case N_FN_SEQ:
3077 case N_COMM:
3078 case N_SETV:
3079 case N_FN:
3080 /* Ignore symbols that are not externally visible. */
3081 continue;
3082 case N_INDR:
3083 /* Ignore local indirect symbol. */
3084 ++p;
3085 ++sym_hash;
3086 continue;
252b5132 3087
116c20d2
NC		 3088 case N_UNDF | N_EXT:
3089 if (value == 0)
f7c33884 3090 {
116c20d2
NC		 3091 section = bfd_und_section_ptr;
3092 flags = 0;
252b5132
RH		 3093 }
3094 else
3095 section = bfd_com_section_ptr;
3096 break;
3097 case N_ABS | N_EXT:
3098 section = bfd_abs_section_ptr;
3099 break;
3100 case N_TEXT | N_EXT:
3101 section = obj_textsec (abfd);
3102 value -= bfd_get_section_vma (abfd, section);
3103 break;
3104 case N_DATA | N_EXT:
3105 case N_SETV | N_EXT:
3106 /* Treat N_SETV symbols as N_DATA symbol; see comment in
3107 translate_from_native_sym_flags. */
3108 section = obj_datasec (abfd);
3109 value -= bfd_get_section_vma (abfd, section);
3110 break;
3111 case N_BSS | N_EXT:
3112 section = obj_bsssec (abfd);
3113 value -= bfd_get_section_vma (abfd, section);
3114 break;
3115 case N_INDR | N_EXT:
3116 /* An indirect symbol. The next symbol is the symbol
3117 which this one really is. */
39d4daf6
NC		 3118 /* See PR 20925 for a reproducer. */
3119 if (p + 1 >= pend)
3120 return FALSE;
252b5132 3121 ++p;
e517df3d 3122 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3123 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3124 return FALSE;
252b5132
RH		 3125 string = strings + GET_WORD (abfd, p->e_strx);
3126 section = bfd_ind_section_ptr;
3127 flags |= BSF_INDIRECT;
3128 break;
3129 case N_COMM | N_EXT:
3130 section = bfd_com_section_ptr;
3131 break;
3132 case N_SETA: case N_SETA | N_EXT:
3133 section = bfd_abs_section_ptr;
3134 flags |= BSF_CONSTRUCTOR;
3135 break;
3136 case N_SETT: case N_SETT | N_EXT:
3137 section = obj_textsec (abfd);
3138 flags |= BSF_CONSTRUCTOR;
3139 value -= bfd_get_section_vma (abfd, section);
3140 break;
3141 case N_SETD: case N_SETD | N_EXT:
3142 section = obj_datasec (abfd);
3143 flags |= BSF_CONSTRUCTOR;
3144 value -= bfd_get_section_vma (abfd, section);
3145 break;
3146 case N_SETB: case N_SETB | N_EXT:
3147 section = obj_bsssec (abfd);
3148 flags |= BSF_CONSTRUCTOR;
3149 value -= bfd_get_section_vma (abfd, section);
3150 break;
3151 case N_WARNING:
3152 /* A warning symbol. The next symbol is the one to warn
9f400ee9
HPN		 3153 about. If there is no next symbol, just look away. */
3154 if (p + 1 >= pend)
3155 return TRUE;
252b5132
RH		 3156 ++p;
3157 string = name;
e517df3d 3158 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3159 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3160 return FALSE;
252b5132
RH		 3161 name = strings + GET_WORD (abfd, p->e_strx);
3162 section = bfd_und_section_ptr;
3163 flags |= BSF_WARNING;
3164 break;
3165 case N_WEAKU:
3166 section = bfd_und_section_ptr;
3167 flags = BSF_WEAK;
3168 break;
3169 case N_WEAKA:
3170 section = bfd_abs_section_ptr;
3171 flags = BSF_WEAK;
3172 break;
3173 case N_WEAKT:
3174 section = obj_textsec (abfd);
3175 value -= bfd_get_section_vma (abfd, section);
3176 flags = BSF_WEAK;
3177 break;
3178 case N_WEAKD:
3179 section = obj_datasec (abfd);
3180 value -= bfd_get_section_vma (abfd, section);
3181 flags = BSF_WEAK;
3182 break;
3183 case N_WEAKB:
3184 section = obj_bsssec (abfd);
3185 value -= bfd_get_section_vma (abfd, section);
3186 flags = BSF_WEAK;
3187 break;
3188 }
3189
3190 if (! ((*add_one_symbol)
b34976b6 3191 (info, abfd, name, flags, section, value, string, copy, FALSE,
252b5132 3192 (struct bfd_link_hash_entry **) sym_hash)))
b34976b6 3193 return FALSE;
252b5132
RH		 3194
3195 /* Restrict the maximum alignment of a common symbol based on
3196 the architecture, since a.out has no way to represent
3197 alignment requirements of a section in a .o file. FIXME:
3198 This isn't quite right: it should use the architecture of the
3199 output file, not the input files. */
3200 if ((*sym_hash)->root.type == bfd_link_hash_common
3201 && ((*sym_hash)->root.u.c.p->alignment_power >
3202 bfd_get_arch_info (abfd)->section_align_power))
3203 (*sym_hash)->root.u.c.p->alignment_power =
3204 bfd_get_arch_info (abfd)->section_align_power;
3205
3206 /* If this is a set symbol, and we are not building sets, then
3207 it is possible for the hash entry to not have been set. In
3208 such a case, treat the symbol as not globally defined. */
3209 if ((*sym_hash)->root.type == bfd_link_hash_new)
3210 {
3211 BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0);
3212 *sym_hash = NULL;
3213 }
3214
3215 if (type == (N_INDR | N_EXT) || type == N_WARNING)
3216 ++sym_hash;
3217 }
3218
b34976b6 3219 return TRUE;
252b5132 3220}
252b5132 3221
116c20d2
NC		 3222/* Free up the internal symbols read from an a.out file. */
3223
3224static bfd_boolean
3225aout_link_free_symbols (bfd *abfd)
252b5132 3226{
116c20d2
NC		 3227 if (obj_aout_external_syms (abfd) != NULL)
3228 {
3229#ifdef USE_MMAP
3230 bfd_free_window (&obj_aout_sym_window (abfd));
3231#else
3232 free ((void *) obj_aout_external_syms (abfd));
3233#endif
3234 obj_aout_external_syms (abfd) = NULL;
3235 }
3236 if (obj_aout_external_strings (abfd) != NULL)
3237 {
3238#ifdef USE_MMAP
3239 bfd_free_window (&obj_aout_string_window (abfd));
3240#else
3241 free ((void *) obj_aout_external_strings (abfd));
3242#endif
3243 obj_aout_external_strings (abfd) = NULL;
3244 }
3245 return TRUE;
3246}
252b5132 3247
116c20d2 3248/* Add symbols from an a.out object file. */
252b5132 3249
116c20d2
NC		 3250static bfd_boolean
3251aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 3252{
116c20d2
NC		 3253 if (! aout_get_external_symbols (abfd))
3254 return FALSE;
3255 if (! aout_link_add_symbols (abfd, info))
3256 return FALSE;
3257 if (! info->keep_memory)
3258 {
3259 if (! aout_link_free_symbols (abfd))
3260 return FALSE;
3261 }
3262 return TRUE;
3263}
252b5132 3264
116c20d2
NC		 3265/* Look through the internal symbols to see if this object file should
3266 be included in the link. We should include this object file if it
3267 defines any symbols which are currently undefined. If this object
3268 file defines a common symbol, then we may adjust the size of the
3269 known symbol but we do not include the object file in the link
3270 (unless there is some other reason to include it). */
252b5132 3271
116c20d2
NC		 3272static bfd_boolean
3273aout_link_check_ar_symbols (bfd *abfd,
3274 struct bfd_link_info *info,
5d3236ee
DK		 3275 bfd_boolean *pneeded,
3276 bfd **subsbfd)
252b5132 3277{
116c20d2
NC		 3278 struct external_nlist *p;
3279 struct external_nlist *pend;
3280 char *strings;
252b5132 3281
116c20d2 3282 *pneeded = FALSE;
252b5132 3283
116c20d2
NC		 3284 /* Look through all the symbols. */
3285 p = obj_aout_external_syms (abfd);
3286 pend = p + obj_aout_external_sym_count (abfd);
3287 strings = obj_aout_external_strings (abfd);
3288 for (; p < pend; p++)
3289 {
3290 int type = H_GET_8 (abfd, p->e_type);
3291 const char *name;
3292 struct bfd_link_hash_entry *h;
252b5132 3293
116c20d2
NC		 3294 /* Ignore symbols that are not externally visible. This is an
3295 optimization only, as we check the type more thoroughly
3296 below. */
3297 if (((type & N_EXT) == 0
3298 || (type & N_STAB) != 0
3299 || type == N_FN)
3300 && type != N_WEAKA
3301 && type != N_WEAKT
3302 && type != N_WEAKD
3303 && type != N_WEAKB)
3304 {
3305 if (type == N_WARNING
3306 || type == N_INDR)
3307 ++p;
3308 continue;
3309 }
3310
3311 name = strings + GET_WORD (abfd, p->e_strx);
3312 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
3313
3314 /* We are only interested in symbols that are currently
3315 undefined or common. */
3316 if (h == NULL
3317 || (h->type != bfd_link_hash_undefined
3318 && h->type != bfd_link_hash_common))
3319 {
3320 if (type == (N_INDR | N_EXT))
3321 ++p;
3322 continue;
3323 }
3324
3325 if (type == (N_TEXT | N_EXT)
3326 || type == (N_DATA | N_EXT)
3327 || type == (N_BSS | N_EXT)
3328 || type == (N_ABS | N_EXT)
3329 || type == (N_INDR | N_EXT))
3330 {
3331 /* This object file defines this symbol. We must link it
3332 in. This is true regardless of whether the current
3333 definition of the symbol is undefined or common.
3334
3335 If the current definition is common, we have a case in
3336 which we have already seen an object file including:
3337 int a;
3338 and this object file from the archive includes:
3339 int a = 5;
3340 In such a case, whether to include this object is target
3341 dependant for backward compatibility.
3342
3343 FIXME: The SunOS 4.1.3 linker will pull in the archive
3344 element if the symbol is defined in the .data section,
3345 but not if it is defined in the .text section. That
3346 seems a bit crazy to me, and it has not been implemented
3347 yet. However, it might be correct. */
3348 if (h->type == bfd_link_hash_common)
3349 {
3350 int skip = 0;
3351
f88dc410 3352 switch (info->common_skip_ar_symbols)
116c20d2
NC		 3353 {
3354 case bfd_link_common_skip_text:
3355 skip = (type == (N_TEXT | N_EXT));
3356 break;
3357 case bfd_link_common_skip_data:
3358 skip = (type == (N_DATA | N_EXT));
3359 break;
3360 default:
3361 case bfd_link_common_skip_all:
3362 skip = 1;
3363 break;
3364 }
3365
3366 if (skip)
3367 continue;
3368 }
3369
0e144ba7
AM		 3370 if (!(*info->callbacks
3371 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3372 return FALSE;
3373 *pneeded = TRUE;
3374 return TRUE;
3375 }
3376
3377 if (type == (N_UNDF | N_EXT))
3378 {
3379 bfd_vma value;
3380
3381 value = GET_WORD (abfd, p->e_value);
3382 if (value != 0)
3383 {
3384 /* This symbol is common in the object from the archive
3385 file. */
3386 if (h->type == bfd_link_hash_undefined)
3387 {
3388 bfd *symbfd;
3389 unsigned int power;
3390
3391 symbfd = h->u.undef.abfd;
3392 if (symbfd == NULL)
3393 {
3394 /* This symbol was created as undefined from
3395 outside BFD. We assume that we should link
3396 in the object file. This is done for the -u
3397 option in the linker. */
0e144ba7
AM		 3398 if (!(*info->callbacks
3399 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3400 return FALSE;
3401 *pneeded = TRUE;
3402 return TRUE;
3403 }
3404 /* Turn the current link symbol into a common
3405 symbol. It is already on the undefs list. */
3406 h->type = bfd_link_hash_common;
a50b1753 3407 h->u.c.p = (struct bfd_link_hash_common_entry *)
0e144ba7
AM		 3408 bfd_hash_allocate (&info->hash->table,
3409 sizeof (struct bfd_link_hash_common_entry));
116c20d2
NC		 3410 if (h->u.c.p == NULL)
3411 return FALSE;
3412
3413 h->u.c.size = value;
3414
3415 /* FIXME: This isn't quite right. The maximum
3416 alignment of a common symbol should be set by the
3417 architecture of the output file, not of the input
3418 file. */
3419 power = bfd_log2 (value);
3420 if (power > bfd_get_arch_info (abfd)->section_align_power)
3421 power = bfd_get_arch_info (abfd)->section_align_power;
3422 h->u.c.p->alignment_power = power;
3423
3424 h->u.c.p->section = bfd_make_section_old_way (symbfd,
3425 "COMMON");
3426 }
3427 else
3428 {
3429 /* Adjust the size of the common symbol if
3430 necessary. */
3431 if (value > h->u.c.size)
3432 h->u.c.size = value;
3433 }
3434 }
3435 }
3436
3437 if (type == N_WEAKA
3438 || type == N_WEAKT
3439 || type == N_WEAKD
3440 || type == N_WEAKB)
3441 {
3442 /* This symbol is weak but defined. We must pull it in if
3443 the current link symbol is undefined, but we don't want
3444 it if the current link symbol is common. */
3445 if (h->type == bfd_link_hash_undefined)
3446 {
0e144ba7
AM		 3447 if (!(*info->callbacks
3448 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3449 return FALSE;
3450 *pneeded = TRUE;
3451 return TRUE;
3452 }
3453 }
3454 }
3455
3456 /* We do not need this object file. */
3457 return TRUE;
3458}
3459/* Check a single archive element to see if we need to include it in
3460 the link. *PNEEDED is set according to whether this element is
3461 needed in the link or not. This is called from
3462 _bfd_generic_link_add_archive_symbols. */
3463
3464static bfd_boolean
3465aout_link_check_archive_element (bfd *abfd,
3466 struct bfd_link_info *info,
13e570f8
AM		 3467 struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
3468 const char *name ATTRIBUTE_UNUSED,
116c20d2
NC		 3469 bfd_boolean *pneeded)
3470{
0e144ba7
AM		 3471 bfd *oldbfd;
3472 bfd_boolean needed;
5d3236ee 3473
0e144ba7 3474 if (!aout_get_external_symbols (abfd))
116c20d2
NC		 3475 return FALSE;
3476
0e144ba7
AM		 3477 oldbfd = abfd;
3478 if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd))
116c20d2
NC		 3479 return FALSE;
3480
0e144ba7
AM		 3481 needed = *pneeded;
3482 if (needed)
116c20d2 3483 {
5d3236ee
DK		 3484 /* Potentially, the add_archive_element hook may have set a
3485 substitute BFD for us. */
0e144ba7
AM		 3486 if (abfd != oldbfd)
3487 {
3488 if (!info->keep_memory
3489 && !aout_link_free_symbols (oldbfd))
3490 return FALSE;
3491 if (!aout_get_external_symbols (abfd))
3492 return FALSE;
3493 }
3494 if (!aout_link_add_symbols (abfd, info))
116c20d2
NC		 3495 return FALSE;
3496 }
3497
0e144ba7 3498 if (!info->keep_memory || !needed)
116c20d2 3499 {
0e144ba7 3500 if (!aout_link_free_symbols (abfd))
116c20d2
NC		 3501 return FALSE;
3502 }
3503
3504 return TRUE;
3505}
3506
3507/* Given an a.out BFD, add symbols to the global hash table as
3508 appropriate. */
3509
3510bfd_boolean
3511NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
3512{
3513 switch (bfd_get_format (abfd))
3514 {
3515 case bfd_object:
3516 return aout_link_add_object_symbols (abfd, info);
3517 case bfd_archive:
3518 return _bfd_generic_link_add_archive_symbols
3519 (abfd, info, aout_link_check_archive_element);
3520 default:
3521 bfd_set_error (bfd_error_wrong_format);
3522 return FALSE;
3523 }
3524}
3525\f
3526/* A hash table used for header files with N_BINCL entries. */
3527
3528struct aout_link_includes_table
3529{
3530 struct bfd_hash_table root;
3531};
3532
3533/* A linked list of totals that we have found for a particular header
3534 file. */
3535
3536struct aout_link_includes_totals
3537{
3538 struct aout_link_includes_totals *next;
3539 bfd_vma total;
3540};
3541
3542/* An entry in the header file hash table. */
3543
3544struct aout_link_includes_entry
3545{
3546 struct bfd_hash_entry root;
3547 /* List of totals we have found for this file. */
3548 struct aout_link_includes_totals *totals;
3549};
3550
3551/* Look up an entry in an the header file hash table. */
3552
3553#define aout_link_includes_lookup(table, string, create, copy) \
3554 ((struct aout_link_includes_entry *) \
3555 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
3556
3557/* During the final link step we need to pass around a bunch of
3558 information, so we do it in an instance of this structure. */
3559
3560struct aout_final_link_info
3561{
3562 /* General link information. */
3563 struct bfd_link_info *info;
3564 /* Output bfd. */
252b5132
RH		 3565 bfd *output_bfd;
3566 /* Reloc file positions. */
3567 file_ptr treloff, dreloff;
3568 /* File position of symbols. */
3569 file_ptr symoff;
3570 /* String table. */
3571 struct bfd_strtab_hash *strtab;
3572 /* Header file hash table. */
3573 struct aout_link_includes_table includes;
3574 /* A buffer large enough to hold the contents of any section. */
3575 bfd_byte *contents;
3576 /* A buffer large enough to hold the relocs of any section. */
116c20d2 3577 void * relocs;
252b5132
RH		 3578 /* A buffer large enough to hold the symbol map of any input BFD. */
3579 int *symbol_map;
3580 /* A buffer large enough to hold output symbols of any input BFD. */
3581 struct external_nlist *output_syms;
3582};
3583
252b5132
RH		 3584/* The function to create a new entry in the header file hash table. */
3585
3586static struct bfd_hash_entry *
116c20d2
NC		 3587aout_link_includes_newfunc (struct bfd_hash_entry *entry,
3588 struct bfd_hash_table *table,
3589 const char *string)
252b5132
RH		 3590{
3591 struct aout_link_includes_entry *ret =
3592 (struct aout_link_includes_entry *) entry;
3593
3594 /* Allocate the structure if it has not already been allocated by a
3595 subclass. */
116c20d2 3596 if (ret == NULL)
a50b1753
NC		 3597 ret = (struct aout_link_includes_entry *)
3598 bfd_hash_allocate (table, sizeof (* ret));
116c20d2
NC		 3599 if (ret == NULL)
3600 return NULL;
252b5132
RH		 3601
3602 /* Call the allocation method of the superclass. */
3603 ret = ((struct aout_link_includes_entry *)
3604 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
3605 if (ret)
3606 {
3607 /* Set local fields. */
3608 ret->totals = NULL;
3609 }
3610
3611 return (struct bfd_hash_entry *) ret;
3612}
3613
116c20d2
NC		 3614/* Write out a symbol that was not associated with an a.out input
3615 object. */
252b5132 3616
116c20d2 3617static bfd_boolean
7686d77d 3618aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data)
252b5132 3619{
7686d77d 3620 struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh;
57402f1e 3621 struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data;
116c20d2
NC		 3622 bfd *output_bfd;
3623 int type;
3624 bfd_vma val;
3625 struct external_nlist outsym;
3626 bfd_size_type indx;
3627 bfd_size_type amt;
252b5132 3628
116c20d2
NC		 3629 if (h->root.type == bfd_link_hash_warning)
3630 {
3631 h = (struct aout_link_hash_entry *) h->root.u.i.link;
3632 if (h->root.type == bfd_link_hash_new)
3633 return TRUE;
3634 }
252b5132 3635
57402f1e 3636 output_bfd = flaginfo->output_bfd;
252b5132 3637
116c20d2 3638 if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
252b5132 3639 {
116c20d2 3640 if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
57402f1e 3641 (output_bfd, flaginfo->info, h)))
252b5132 3642 {
116c20d2
NC		 3643 /* FIXME: No way to handle errors. */
3644 abort ();
252b5132 3645 }
116c20d2 3646 }
252b5132 3647
116c20d2
NC		 3648 if (h->written)
3649 return TRUE;
252b5132 3650
116c20d2 3651 h->written = TRUE;
252b5132 3652
116c20d2
NC		 3653 /* An indx of -2 means the symbol must be written. */
3654 if (h->indx != -2
57402f1e
NC		 3655 && (flaginfo->info->strip == strip_all
3656 || (flaginfo->info->strip == strip_some
3657 && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string,
116c20d2
NC		 3658 FALSE, FALSE) == NULL)))
3659 return TRUE;
252b5132 3660
116c20d2 3661 switch (h->root.type)
252b5132 3662 {
116c20d2
NC		 3663 default:
3664 case bfd_link_hash_warning:
3665 abort ();
3666 /* Avoid variable not initialized warnings. */
3667 return TRUE;
3668 case bfd_link_hash_new:
3669 /* This can happen for set symbols when sets are not being
3670 built. */
3671 return TRUE;
3672 case bfd_link_hash_undefined:
3673 type = N_UNDF | N_EXT;
3674 val = 0;
3675 break;
3676 case bfd_link_hash_defined:
3677 case bfd_link_hash_defweak:
3678 {
3679 asection *sec;
252b5132 3680
116c20d2
NC		 3681 sec = h->root.u.def.section->output_section;
3682 BFD_ASSERT (bfd_is_abs_section (sec)
3683 || sec->owner == output_bfd);
3684 if (sec == obj_textsec (output_bfd))
3685 type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
3686 else if (sec == obj_datasec (output_bfd))
3687 type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
3688 else if (sec == obj_bsssec (output_bfd))
3689 type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
3690 else
3691 type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
3692 type |= N_EXT;
3693 val = (h->root.u.def.value
3694 + sec->vma
3695 + h->root.u.def.section->output_offset);
3696 }
3697 break;
3698 case bfd_link_hash_common:
3699 type = N_UNDF | N_EXT;
3700 val = h->root.u.c.size;
3701 break;
3702 case bfd_link_hash_undefweak:
3703 type = N_WEAKU;
3704 val = 0;
c38eb2a6 3705 break;
116c20d2
NC		 3706 case bfd_link_hash_indirect:
3707 /* We ignore these symbols, since the indirected symbol is
3708 already in the hash table. */
3709 return TRUE;
3710 }
252b5132 3711
116c20d2
NC		 3712 H_PUT_8 (output_bfd, type, outsym.e_type);
3713 H_PUT_8 (output_bfd, 0, outsym.e_other);
3714 H_PUT_16 (output_bfd, 0, outsym.e_desc);
57402f1e 3715 indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string,
116c20d2
NC		 3716 FALSE);
3717 if (indx == - (bfd_size_type) 1)
3718 /* FIXME: No way to handle errors. */
3719 abort ();
252b5132 3720
116c20d2
NC		 3721 PUT_WORD (output_bfd, indx, outsym.e_strx);
3722 PUT_WORD (output_bfd, val, outsym.e_value);
252b5132 3723
116c20d2 3724 amt = EXTERNAL_NLIST_SIZE;
57402f1e 3725 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0
116c20d2
NC		 3726 || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt)
3727 /* FIXME: No way to handle errors. */
3728 abort ();
252b5132 3729
57402f1e 3730 flaginfo->symoff += EXTERNAL_NLIST_SIZE;
116c20d2
NC		 3731 h->indx = obj_aout_external_sym_count (output_bfd);
3732 ++obj_aout_external_sym_count (output_bfd);
252b5132 3733
116c20d2
NC		 3734 return TRUE;
3735}
252b5132 3736
116c20d2 3737/* Handle a link order which is supposed to generate a reloc. */
252b5132 3738
116c20d2 3739static bfd_boolean
57402f1e 3740aout_link_reloc_link_order (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3741 asection *o,
3742 struct bfd_link_order *p)
3743{
3744 struct bfd_link_order_reloc *pr;
3745 int r_index;
3746 int r_extern;
3747 reloc_howto_type *howto;
3748 file_ptr *reloff_ptr = NULL;
3749 struct reloc_std_external srel;
3750 struct reloc_ext_external erel;
3751 void * rel_ptr;
3752 bfd_size_type amt;
252b5132 3753
116c20d2 3754 pr = p->u.reloc.p;
252b5132 3755
116c20d2
NC		 3756 if (p->type == bfd_section_reloc_link_order)
3757 {
3758 r_extern = 0;
3759 if (bfd_is_abs_section (pr->u.section))
3760 r_index = N_ABS | N_EXT;
3761 else
3762 {
57402f1e 3763 BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd);
116c20d2
NC		 3764 r_index = pr->u.section->target_index;
3765 }
3766 }
3767 else
3768 {
3769 struct aout_link_hash_entry *h;
252b5132 3770
116c20d2
NC		 3771 BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
3772 r_extern = 1;
3773 h = ((struct aout_link_hash_entry *)
57402f1e 3774 bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info,
116c20d2
NC		 3775 pr->u.name, FALSE, FALSE, TRUE));
3776 if (h != NULL
3777 && h->indx >= 0)
3778 r_index = h->indx;
3779 else if (h != NULL)
3780 {
3781 /* We decided to strip this symbol, but it turns out that we
3782 can't. Note that we lose the other and desc information
3783 here. I don't think that will ever matter for a global
3784 symbol. */
3785 h->indx = -2;
3786 h->written = FALSE;
57402f1e 3787 if (!aout_link_write_other_symbol (&h->root.root, flaginfo))
116c20d2
NC		 3788 return FALSE;
3789 r_index = h->indx;
3790 }
3791 else
3792 {
1a72702b
AM		 3793 (*flaginfo->info->callbacks->unattached_reloc)
3794 (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0);
116c20d2
NC		 3795 r_index = 0;
3796 }
3797 }
252b5132 3798
57402f1e 3799 howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc);
116c20d2 3800 if (howto == 0)
252b5132 3801 {
116c20d2
NC		 3802 bfd_set_error (bfd_error_bad_value);
3803 return FALSE;
252b5132
RH		 3804 }
3805
57402f1e
NC		 3806 if (o == obj_textsec (flaginfo->output_bfd))
3807 reloff_ptr = &flaginfo->treloff;
3808 else if (o == obj_datasec (flaginfo->output_bfd))
3809 reloff_ptr = &flaginfo->dreloff;
116c20d2
NC		 3810 else
3811 abort ();
3812
57402f1e 3813 if (obj_reloc_entry_size (flaginfo->output_bfd) == RELOC_STD_SIZE)
252b5132 3814 {
116c20d2 3815#ifdef MY_put_reloc
57402f1e 3816 MY_put_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset, howto,
116c20d2
NC		 3817 &srel);
3818#else
3819 {
3820 int r_pcrel;
3821 int r_baserel;
3822 int r_jmptable;
3823 int r_relative;
3824 int r_length;
252b5132 3825
116c20d2
NC		 3826 r_pcrel = (int) howto->pc_relative;
3827 r_baserel = (howto->type & 8) != 0;
3828 r_jmptable = (howto->type & 16) != 0;
3829 r_relative = (howto->type & 32) != 0;
3830 r_length = howto->size;
252b5132 3831
57402f1e
NC		 3832 PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address);
3833 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3834 {
3835 srel.r_index[0] = r_index >> 16;
3836 srel.r_index[1] = r_index >> 8;
3837 srel.r_index[2] = r_index;
3838 srel.r_type[0] =
3839 ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
3840 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
3841 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
3842 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
3843 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
3844 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
3845 }
3846 else
3847 {
3848 srel.r_index[2] = r_index >> 16;
3849 srel.r_index[1] = r_index >> 8;
3850 srel.r_index[0] = r_index;
3851 srel.r_type[0] =
3852 ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
3853 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
3854 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
3855 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
3856 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
3857 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
3858 }
3859 }
3860#endif
3861 rel_ptr = (void *) &srel;
252b5132 3862
116c20d2
NC		 3863 /* We have to write the addend into the object file, since
3864 standard a.out relocs are in place. It would be more
3865 reliable if we had the current contents of the file here,
3866 rather than assuming zeroes, but we can't read the file since
3867 it was opened using bfd_openw. */
3868 if (pr->addend != 0)
252b5132 3869 {
116c20d2
NC		 3870 bfd_size_type size;
3871 bfd_reloc_status_type r;
3872 bfd_byte *buf;
3873 bfd_boolean ok;
3874
3875 size = bfd_get_reloc_size (howto);
a50b1753 3876 buf = (bfd_byte *) bfd_zmalloc (size);
6346d5ca 3877 if (buf == NULL && size != 0)
116c20d2 3878 return FALSE;
57402f1e 3879 r = MY_relocate_contents (howto, flaginfo->output_bfd,
116c20d2
NC		 3880 (bfd_vma) pr->addend, buf);
3881 switch (r)
252b5132 3882 {
116c20d2
NC		 3883 case bfd_reloc_ok:
3884 break;
3885 default:
3886 case bfd_reloc_outofrange:
3887 abort ();
3888 case bfd_reloc_overflow:
1a72702b
AM		 3889 (*flaginfo->info->callbacks->reloc_overflow)
3890 (flaginfo->info, NULL,
3891 (p->type == bfd_section_reloc_link_order
3892 ? bfd_section_name (flaginfo->output_bfd,
3893 pr->u.section)
3894 : pr->u.name),
3895 howto->name, pr->addend, NULL, NULL, (bfd_vma) 0);
116c20d2 3896 break;
252b5132 3897 }
57402f1e 3898 ok = bfd_set_section_contents (flaginfo->output_bfd, o, (void *) buf,
116c20d2
NC		 3899 (file_ptr) p->offset, size);
3900 free (buf);
3901 if (! ok)
3902 return FALSE;
252b5132
RH		 3903 }
3904 }
116c20d2 3905 else
252b5132 3906 {
116c20d2 3907#ifdef MY_put_ext_reloc
57402f1e 3908 MY_put_ext_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset,
116c20d2
NC		 3909 howto, &erel, pr->addend);
3910#else
57402f1e 3911 PUT_WORD (flaginfo->output_bfd, p->offset, erel.r_address);
252b5132 3912
57402f1e 3913 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3914 {
3915 erel.r_index[0] = r_index >> 16;
3916 erel.r_index[1] = r_index >> 8;
3917 erel.r_index[2] = r_index;
3918 erel.r_type[0] =
3919 ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
3920 | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG));
3921 }
3922 else
3923 {
3924 erel.r_index[2] = r_index >> 16;
3925 erel.r_index[1] = r_index >> 8;
3926 erel.r_index[0] = r_index;
3927 erel.r_type[0] =
3928 (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
3929 | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
3930 }
252b5132 3931
57402f1e 3932 PUT_WORD (flaginfo->output_bfd, (bfd_vma) pr->addend, erel.r_addend);
116c20d2 3933#endif /* MY_put_ext_reloc */
252b5132 3934
116c20d2 3935 rel_ptr = (void *) &erel;
252b5132 3936 }
252b5132 3937
57402f1e
NC		 3938 amt = obj_reloc_entry_size (flaginfo->output_bfd);
3939 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
3940 || bfd_bwrite (rel_ptr, amt, flaginfo->output_bfd) != amt)
116c20d2 3941 return FALSE;
252b5132 3942
57402f1e 3943 *reloff_ptr += obj_reloc_entry_size (flaginfo->output_bfd);
252b5132 3944
116c20d2
NC		 3945 /* Assert that the relocs have not run into the symbols, and that n
3946 the text relocs have not run into the data relocs. */
57402f1e
NC		 3947 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
3948 && (reloff_ptr != &flaginfo->treloff
116c20d2 3949 || (*reloff_ptr
57402f1e 3950 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 3951
3952 return TRUE;
252b5132
RH		 3953}
3954
116c20d2 3955/* Get the section corresponding to a reloc index. */
252b5132 3956
116c20d2
NC		 3957static INLINE asection *
3958aout_reloc_index_to_section (bfd *abfd, int indx)
252b5132 3959{
116c20d2 3960 switch (indx & N_TYPE)
252b5132 3961 {
116c20d2
NC		 3962 case N_TEXT: return obj_textsec (abfd);
3963 case N_DATA: return obj_datasec (abfd);
3964 case N_BSS: return obj_bsssec (abfd);
3965 case N_ABS:
3966 case N_UNDF: return bfd_abs_section_ptr;
3967 default: abort ();
252b5132 3968 }
116c20d2 3969 return NULL;
252b5132
RH		 3970}
3971
116c20d2 3972/* Relocate an a.out section using standard a.out relocs. */
252b5132 3973
b34976b6 3974static bfd_boolean
57402f1e 3975aout_link_input_section_std (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3976 bfd *input_bfd,
3977 asection *input_section,
3978 struct reloc_std_external *relocs,
3979 bfd_size_type rel_size,
3980 bfd_byte *contents)
252b5132 3981{
116c20d2
NC		 3982 bfd_boolean (*check_dynamic_reloc)
3983 (struct bfd_link_info *, bfd *, asection *,
3984 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
3985 bfd_vma *);
252b5132 3986 bfd *output_bfd;
116c20d2
NC		 3987 bfd_boolean relocatable;
3988 struct external_nlist *syms;
252b5132 3989 char *strings;
116c20d2 3990 struct aout_link_hash_entry **sym_hashes;
252b5132 3991 int *symbol_map;
116c20d2
NC		 3992 bfd_size_type reloc_count;
3993 struct reloc_std_external *rel;
3994 struct reloc_std_external *rel_end;
252b5132 3995
57402f1e 3996 output_bfd = flaginfo->output_bfd;
116c20d2 3997 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
252b5132 3998
116c20d2
NC		 3999 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE);
4000 BFD_ASSERT (input_bfd->xvec->header_byteorder
4001 == output_bfd->xvec->header_byteorder);
252b5132 4002
0e1862bb 4003 relocatable = bfd_link_relocatable (flaginfo->info);
116c20d2
NC		 4004 syms = obj_aout_external_syms (input_bfd);
4005 strings = obj_aout_external_strings (input_bfd);
4006 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4007 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4008
4009 reloc_count = rel_size / RELOC_STD_SIZE;
4010 rel = relocs;
4011 rel_end = rel + reloc_count;
4012 for (; rel < rel_end; rel++)
252b5132 4013 {
116c20d2
NC		 4014 bfd_vma r_addr;
4015 int r_index;
4016 int r_extern;
4017 int r_pcrel;
4018 int r_baserel = 0;
4019 reloc_howto_type *howto;
4020 struct aout_link_hash_entry *h = NULL;
4021 bfd_vma relocation;
4022 bfd_reloc_status_type r;
252b5132 4023
116c20d2 4024 r_addr = GET_SWORD (input_bfd, rel->r_address);
252b5132 4025
116c20d2
NC		 4026#ifdef MY_reloc_howto
4027 howto = MY_reloc_howto (input_bfd, rel, r_index, r_extern, r_pcrel);
4028#else
4029 {
4030 int r_jmptable;
4031 int r_relative;
4032 int r_length;
4033 unsigned int howto_idx;
252b5132 4034
116c20d2
NC		 4035 if (bfd_header_big_endian (input_bfd))
4036 {
4037 r_index = (((unsigned int) rel->r_index[0] << 16)
4038 | ((unsigned int) rel->r_index[1] << 8)
4039 | rel->r_index[2]);
4040 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
4041 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
4042 r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
4043 r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
4044 r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
4045 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
4046 >> RELOC_STD_BITS_LENGTH_SH_BIG);
4047 }
4048 else
4049 {
4050 r_index = (((unsigned int) rel->r_index[2] << 16)
4051 | ((unsigned int) rel->r_index[1] << 8)
4052 | rel->r_index[0]);
4053 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
4054 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
4055 r_baserel = (0 != (rel->r_type[0]
4056 & RELOC_STD_BITS_BASEREL_LITTLE));
4057 r_jmptable= (0 != (rel->r_type[0]
4058 & RELOC_STD_BITS_JMPTABLE_LITTLE));
4059 r_relative= (0 != (rel->r_type[0]
4060 & RELOC_STD_BITS_RELATIVE_LITTLE));
4061 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
4062 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
4063 }
252b5132 4064
116c20d2
NC		 4065 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
4066 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 4067 if (howto_idx < TABLE_SIZE (howto_table_std))
4068 howto = howto_table_std + howto_idx;
4069 else
4070 howto = NULL;
116c20d2
NC		 4071 }
4072#endif
252b5132 4073
ad756e3f
AM		 4074 if (howto == NULL)
4075 {
57402f1e 4076 (*flaginfo->info->callbacks->einfo)
ad756e3f
AM		 4077 (_("%P: %B: unexpected relocation type\n"), input_bfd);
4078 bfd_set_error (bfd_error_bad_value);
4079 return FALSE;
4080 }
4081
116c20d2 4082 if (relocatable)
252b5132 4083 {
116c20d2
NC		 4084 /* We are generating a relocatable output file, and must
4085 modify the reloc accordingly. */
4086 if (r_extern)
252b5132 4087 {
116c20d2
NC		 4088 /* If we know the symbol this relocation is against,
4089 convert it into a relocation against a section. This
4090 is what the native linker does. */
4091 h = sym_hashes[r_index];
4092 if (h != NULL
4093 && (h->root.type == bfd_link_hash_defined
4094 || h->root.type == bfd_link_hash_defweak))
252b5132 4095 {
252b5132
RH		 4096 asection *output_section;
4097
116c20d2
NC		 4098 /* Change the r_extern value. */
4099 if (bfd_header_big_endian (output_bfd))
4100 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_BIG;
4101 else
4102 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE;
252b5132 4103
116c20d2
NC		 4104 /* Compute a new r_index. */
4105 output_section = h->root.u.def.section->output_section;
252b5132 4106 if (output_section == obj_textsec (output_bfd))
116c20d2 4107 r_index = N_TEXT;
252b5132 4108 else if (output_section == obj_datasec (output_bfd))
116c20d2 4109 r_index = N_DATA;
252b5132 4110 else if (output_section == obj_bsssec (output_bfd))
116c20d2 4111 r_index = N_BSS;
252b5132 4112 else
116c20d2 4113 r_index = N_ABS;
252b5132 4114
116c20d2
NC		 4115 /* Add the symbol value and the section VMA to the
4116 addend stored in the contents. */
4117 relocation = (h->root.u.def.value
4118 + output_section->vma
4119 + h->root.u.def.section->output_offset);
252b5132 4120 }
116c20d2 4121 else
252b5132 4122 {
116c20d2
NC		 4123 /* We must change r_index according to the symbol
4124 map. */
4125 r_index = symbol_map[r_index];
252b5132 4126
116c20d2 4127 if (r_index == -1)
252b5132 4128 {
116c20d2 4129 if (h != NULL)
252b5132 4130 {
116c20d2
NC		 4131 /* We decided to strip this symbol, but it
4132 turns out that we can't. Note that we
4133 lose the other and desc information here.
4134 I don't think that will ever matter for a
4135 global symbol. */
4136 if (h->indx < 0)
252b5132 4137 {
116c20d2
NC		 4138 h->indx = -2;
4139 h->written = FALSE;
7686d77d 4140 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4141 flaginfo))
116c20d2 4142 return FALSE;
252b5132 4143 }
116c20d2
NC		 4144 r_index = h->indx;
4145 }
4146 else
4147 {
4148 const char *name;
4149
4150 name = strings + GET_WORD (input_bfd,
4151 syms[r_index].e_strx);
1a72702b
AM		 4152 (*flaginfo->info->callbacks->unattached_reloc)
4153 (flaginfo->info, name,
4154 input_bfd, input_section, r_addr);
116c20d2 4155 r_index = 0;
252b5132
RH		 4156 }
4157 }
116c20d2
NC		 4158
4159 relocation = 0;
252b5132
RH		 4160 }
4161
116c20d2
NC		 4162 /* Write out the new r_index value. */
4163 if (bfd_header_big_endian (output_bfd))
252b5132 4164 {
116c20d2
NC		 4165 rel->r_index[0] = r_index >> 16;
4166 rel->r_index[1] = r_index >> 8;
4167 rel->r_index[2] = r_index;
252b5132
RH		 4168 }
4169 else
4170 {
116c20d2
NC		 4171 rel->r_index[2] = r_index >> 16;
4172 rel->r_index[1] = r_index >> 8;
4173 rel->r_index[0] = r_index;
252b5132
RH		 4174 }
4175 }
252b5132 4176 else
116c20d2
NC		 4177 {
4178 asection *section;
252b5132 4179
116c20d2
NC		 4180 /* This is a relocation against a section. We must
4181 adjust by the amount that the section moved. */
4182 section = aout_reloc_index_to_section (input_bfd, r_index);
4183 relocation = (section->output_section->vma
4184 + section->output_offset
4185 - section->vma);
4186 }
252b5132 4187
116c20d2
NC		 4188 /* Change the address of the relocation. */
4189 PUT_WORD (output_bfd,
4190 r_addr + input_section->output_offset,
4191 rel->r_address);
252b5132 4192
116c20d2
NC		 4193 /* Adjust a PC relative relocation by removing the reference
4194 to the original address in the section and including the
4195 reference to the new address. */
4196 if (r_pcrel)
4197 relocation -= (input_section->output_section->vma
4198 + input_section->output_offset
4199 - input_section->vma);
e92d460e 4200
116c20d2
NC		 4201#ifdef MY_relocatable_reloc
4202 MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
4203#endif
252b5132 4204
116c20d2
NC		 4205 if (relocation == 0)
4206 r = bfd_reloc_ok;
4207 else
4208 r = MY_relocate_contents (howto,
4209 input_bfd, relocation,
4210 contents + r_addr);
252b5132 4211 }
116c20d2
NC		 4212 else
4213 {
4214 bfd_boolean hundef;
252b5132 4215
116c20d2
NC		 4216 /* We are generating an executable, and must do a full
4217 relocation. */
4218 hundef = FALSE;
252b5132 4219
116c20d2
NC		 4220 if (r_extern)
4221 {
4222 h = sym_hashes[r_index];
252b5132 4223
116c20d2
NC		 4224 if (h != NULL
4225 && (h->root.type == bfd_link_hash_defined
4226 || h->root.type == bfd_link_hash_defweak))
4227 {
4228 relocation = (h->root.u.def.value
4229 + h->root.u.def.section->output_section->vma
4230 + h->root.u.def.section->output_offset);
4231 }
4232 else if (h != NULL
4233 && h->root.type == bfd_link_hash_undefweak)
4234 relocation = 0;
4235 else
4236 {
4237 hundef = TRUE;
4238 relocation = 0;
4239 }
4240 }
4241 else
4242 {
4243 asection *section;
252b5132 4244
116c20d2
NC		 4245 section = aout_reloc_index_to_section (input_bfd, r_index);
4246 relocation = (section->output_section->vma
4247 + section->output_offset
4248 - section->vma);
4249 if (r_pcrel)
4250 relocation += input_section->vma;
4251 }
252b5132 4252
116c20d2
NC		 4253 if (check_dynamic_reloc != NULL)
4254 {
4255 bfd_boolean skip;
252b5132 4256
116c20d2 4257 if (! ((*check_dynamic_reloc)
57402f1e 4258 (flaginfo->info, input_bfd, input_section, h,
116c20d2
NC		 4259 (void *) rel, contents, &skip, &relocation)))
4260 return FALSE;
4261 if (skip)
4262 continue;
4263 }
252b5132 4264
116c20d2
NC		 4265 /* Now warn if a global symbol is undefined. We could not
4266 do this earlier, because check_dynamic_reloc might want
4267 to skip this reloc. */
0e1862bb 4268 if (hundef && ! bfd_link_pic (flaginfo->info) && ! r_baserel)
116c20d2
NC		 4269 {
4270 const char *name;
252b5132 4271
116c20d2
NC		 4272 if (h != NULL)
4273 name = h->root.root.string;
4274 else
4275 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4276 (*flaginfo->info->callbacks->undefined_symbol)
4277 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
116c20d2 4278 }
252b5132 4279
116c20d2
NC		 4280 r = MY_final_link_relocate (howto,
4281 input_bfd, input_section,
4282 contents, r_addr, relocation,
4283 (bfd_vma) 0);
252b5132 4284 }
252b5132 4285
116c20d2
NC		 4286 if (r != bfd_reloc_ok)
4287 {
4288 switch (r)
4289 {
4290 default:
4291 case bfd_reloc_outofrange:
4292 abort ();
4293 case bfd_reloc_overflow:
4294 {
4295 const char *name;
252b5132 4296
116c20d2
NC		 4297 if (h != NULL)
4298 name = NULL;
4299 else if (r_extern)
4300 name = strings + GET_WORD (input_bfd,
4301 syms[r_index].e_strx);
4302 else
4303 {
4304 asection *s;
252b5132 4305
116c20d2
NC		 4306 s = aout_reloc_index_to_section (input_bfd, r_index);
4307 name = bfd_section_name (input_bfd, s);
4308 }
1a72702b
AM		 4309 (*flaginfo->info->callbacks->reloc_overflow)
4310 (flaginfo->info, (h ? &h->root : NULL), name, howto->name,
4311 (bfd_vma) 0, input_bfd, input_section, r_addr);
116c20d2
NC		 4312 }
4313 break;
4314 }
4315 }
252b5132
RH		 4316 }
4317
b34976b6 4318 return TRUE;
252b5132
RH		 4319}
4320
116c20d2 4321/* Relocate an a.out section using extended a.out relocs. */
252b5132 4322
b34976b6 4323static bfd_boolean
57402f1e 4324aout_link_input_section_ext (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4325 bfd *input_bfd,
4326 asection *input_section,
4327 struct reloc_ext_external *relocs,
4328 bfd_size_type rel_size,
4329 bfd_byte *contents)
252b5132 4330{
b34976b6 4331 bfd_boolean (*check_dynamic_reloc)
116c20d2
NC		 4332 (struct bfd_link_info *, bfd *, asection *,
4333 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
4334 bfd_vma *);
252b5132 4335 bfd *output_bfd;
1049f94e 4336 bfd_boolean relocatable;
252b5132
RH		 4337 struct external_nlist *syms;
4338 char *strings;
4339 struct aout_link_hash_entry **sym_hashes;
4340 int *symbol_map;
4341 bfd_size_type reloc_count;
116c20d2
NC		 4342 struct reloc_ext_external *rel;
4343 struct reloc_ext_external *rel_end;
252b5132 4344
57402f1e 4345 output_bfd = flaginfo->output_bfd;
252b5132
RH		 4346 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
4347
116c20d2 4348 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_EXT_SIZE);
252b5132
RH		 4349 BFD_ASSERT (input_bfd->xvec->header_byteorder
4350 == output_bfd->xvec->header_byteorder);
4351
0e1862bb 4352 relocatable = bfd_link_relocatable (flaginfo->info);
252b5132
RH		 4353 syms = obj_aout_external_syms (input_bfd);
4354 strings = obj_aout_external_strings (input_bfd);
4355 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4356 symbol_map = flaginfo->symbol_map;
252b5132 4357
116c20d2 4358 reloc_count = rel_size / RELOC_EXT_SIZE;
252b5132
RH		 4359 rel = relocs;
4360 rel_end = rel + reloc_count;
4361 for (; rel < rel_end; rel++)
4362 {
4363 bfd_vma r_addr;
4364 int r_index;
4365 int r_extern;
116c20d2
NC		 4366 unsigned int r_type;
4367 bfd_vma r_addend;
252b5132 4368 struct aout_link_hash_entry *h = NULL;
116c20d2 4369 asection *r_section = NULL;
252b5132 4370 bfd_vma relocation;
252b5132
RH		 4371
4372 r_addr = GET_SWORD (input_bfd, rel->r_address);
4373
116c20d2
NC		 4374 if (bfd_header_big_endian (input_bfd))
4375 {
4376 r_index = (((unsigned int) rel->r_index[0] << 16)
4377 | ((unsigned int) rel->r_index[1] << 8)
4378 | rel->r_index[2]);
4379 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
4380 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
4381 >> RELOC_EXT_BITS_TYPE_SH_BIG);
4382 }
4383 else
4384 {
4385 r_index = (((unsigned int) rel->r_index[2] << 16)
4386 | ((unsigned int) rel->r_index[1] << 8)
4387 | rel->r_index[0]);
4388 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
4389 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
4390 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
4391 }
252b5132 4392
116c20d2 4393 r_addend = GET_SWORD (input_bfd, rel->r_addend);
252b5132 4394
ad756e3f
AM		 4395 if (r_type >= TABLE_SIZE (howto_table_ext))
4396 {
57402f1e 4397 (*flaginfo->info->callbacks->einfo)
ad756e3f
AM		 4398 (_("%P: %B: unexpected relocation type\n"), input_bfd);
4399 bfd_set_error (bfd_error_bad_value);
4400 return FALSE;
4401 }
252b5132 4402
1049f94e 4403 if (relocatable)
252b5132 4404 {
1049f94e 4405 /* We are generating a relocatable output file, and must
252b5132 4406 modify the reloc accordingly. */
116c20d2
NC		 4407 if (r_extern
4408 || r_type == (unsigned int) RELOC_BASE10
4409 || r_type == (unsigned int) RELOC_BASE13
4410 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 4411 {
4412 /* If we know the symbol this relocation is against,
4413 convert it into a relocation against a section. This
4414 is what the native linker does. */
116c20d2
NC		 4415 if (r_type == (unsigned int) RELOC_BASE10
4416 || r_type == (unsigned int) RELOC_BASE13
4417 || r_type == (unsigned int) RELOC_BASE22)
4418 h = NULL;
4419 else
4420 h = sym_hashes[r_index];
4421 if (h != NULL
252b5132
RH		 4422 && (h->root.type == bfd_link_hash_defined
4423 || h->root.type == bfd_link_hash_defweak))
4424 {
4425 asection *output_section;
4426
4427 /* Change the r_extern value. */
4428 if (bfd_header_big_endian (output_bfd))
116c20d2 4429 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_BIG;
252b5132 4430 else
116c20d2 4431 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE;
252b5132
RH		 4432
4433 /* Compute a new r_index. */
4434 output_section = h->root.u.def.section->output_section;
4435 if (output_section == obj_textsec (output_bfd))
4436 r_index = N_TEXT;
4437 else if (output_section == obj_datasec (output_bfd))
4438 r_index = N_DATA;
4439 else if (output_section == obj_bsssec (output_bfd))
4440 r_index = N_BSS;
4441 else
4442 r_index = N_ABS;
4443
4444 /* Add the symbol value and the section VMA to the
116c20d2 4445 addend. */
252b5132
RH		 4446 relocation = (h->root.u.def.value
4447 + output_section->vma
4448 + h->root.u.def.section->output_offset);
116c20d2
NC		 4449
4450 /* Now RELOCATION is the VMA of the final
4451 destination. If this is a PC relative reloc,
4452 then ADDEND is the negative of the source VMA.
4453 We want to set ADDEND to the difference between
4454 the destination VMA and the source VMA, which
4455 means we must adjust RELOCATION by the change in
4456 the source VMA. This is done below. */
252b5132
RH		 4457 }
4458 else
4459 {
4460 /* We must change r_index according to the symbol
4461 map. */
4462 r_index = symbol_map[r_index];
4463
4464 if (r_index == -1)
4465 {
4466 if (h != NULL)
4467 {
4468 /* We decided to strip this symbol, but it
4469 turns out that we can't. Note that we
4470 lose the other and desc information here.
4471 I don't think that will ever matter for a
4472 global symbol. */
4473 if (h->indx < 0)
4474 {
4475 h->indx = -2;
b34976b6 4476 h->written = FALSE;
7686d77d 4477 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4478 flaginfo))
b34976b6 4479 return FALSE;
252b5132
RH		 4480 }
4481 r_index = h->indx;
4482 }
4483 else
4484 {
4485 const char *name;
4486
4487 name = strings + GET_WORD (input_bfd,
4488 syms[r_index].e_strx);
1a72702b
AM		 4489 (*flaginfo->info->callbacks->unattached_reloc)
4490 (flaginfo->info, name,
4491 input_bfd, input_section, r_addr);
252b5132
RH		 4492 r_index = 0;
4493 }
4494 }
4495
4496 relocation = 0;
116c20d2
NC		 4497
4498 /* If this is a PC relative reloc, then the addend
4499 is the negative of the source VMA. We must
4500 adjust it by the change in the source VMA. This
4501 is done below. */
252b5132
RH		 4502 }
4503
4504 /* Write out the new r_index value. */
4505 if (bfd_header_big_endian (output_bfd))
4506 {
4507 rel->r_index[0] = r_index >> 16;
4508 rel->r_index[1] = r_index >> 8;
4509 rel->r_index[2] = r_index;
4510 }
4511 else
4512 {
4513 rel->r_index[2] = r_index >> 16;
4514 rel->r_index[1] = r_index >> 8;
4515 rel->r_index[0] = r_index;
4516 }
4517 }
4518 else
4519 {
252b5132
RH		 4520 /* This is a relocation against a section. We must
4521 adjust by the amount that the section moved. */
116c20d2
NC		 4522 r_section = aout_reloc_index_to_section (input_bfd, r_index);
4523 relocation = (r_section->output_section->vma
4524 + r_section->output_offset
4525 - r_section->vma);
252b5132 4526
116c20d2
NC		 4527 /* If this is a PC relative reloc, then the addend is
4528 the difference in VMA between the destination and the
4529 source. We have just adjusted for the change in VMA
4530 of the destination, so we must also adjust by the
4531 change in VMA of the source. This is done below. */
4532 }
252b5132 4533
116c20d2
NC		 4534 /* As described above, we must always adjust a PC relative
4535 reloc by the change in VMA of the source. However, if
4536 pcrel_offset is set, then the addend does not include the
4537 location within the section, in which case we don't need
4538 to adjust anything. */
4539 if (howto_table_ext[r_type].pc_relative
4540 && ! howto_table_ext[r_type].pcrel_offset)
252b5132
RH		 4541 relocation -= (input_section->output_section->vma
4542 + input_section->output_offset
4543 - input_section->vma);
4544
116c20d2
NC		 4545 /* Change the addend if necessary. */
4546 if (relocation != 0)
4547 PUT_WORD (output_bfd, r_addend + relocation, rel->r_addend);
252b5132 4548
116c20d2
NC		 4549 /* Change the address of the relocation. */
4550 PUT_WORD (output_bfd,
4551 r_addr + input_section->output_offset,
4552 rel->r_address);
252b5132
RH		 4553 }
4554 else
4555 {
b34976b6 4556 bfd_boolean hundef;
116c20d2 4557 bfd_reloc_status_type r;
252b5132
RH		 4558
4559 /* We are generating an executable, and must do a full
4560 relocation. */
b34976b6 4561 hundef = FALSE;
252b5132
RH		 4562
4563 if (r_extern)
4564 {
4565 h = sym_hashes[r_index];
4566
116c20d2 4567 if (h != NULL
252b5132
RH		 4568 && (h->root.type == bfd_link_hash_defined
4569 || h->root.type == bfd_link_hash_defweak))
4570 {
4571 relocation = (h->root.u.def.value
4572 + h->root.u.def.section->output_section->vma
4573 + h->root.u.def.section->output_offset);
4574 }
116c20d2 4575 else if (h != NULL
252b5132
RH		 4576 && h->root.type == bfd_link_hash_undefweak)
4577 relocation = 0;
4578 else
4579 {
b34976b6 4580 hundef = TRUE;
252b5132
RH		 4581 relocation = 0;
4582 }
4583 }
116c20d2
NC		 4584 else if (r_type == (unsigned int) RELOC_BASE10
4585 || r_type == (unsigned int) RELOC_BASE13
4586 || r_type == (unsigned int) RELOC_BASE22)
4587 {
4588 struct external_nlist *sym;
4589 int type;
4590
4591 /* For base relative relocs, r_index is always an index
4592 into the symbol table, even if r_extern is 0. */
4593 sym = syms + r_index;
4594 type = H_GET_8 (input_bfd, sym->e_type);
4595 if ((type & N_TYPE) == N_TEXT
4596 || type == N_WEAKT)
4597 r_section = obj_textsec (input_bfd);
4598 else if ((type & N_TYPE) == N_DATA
4599 || type == N_WEAKD)
4600 r_section = obj_datasec (input_bfd);
4601 else if ((type & N_TYPE) == N_BSS
4602 || type == N_WEAKB)
4603 r_section = obj_bsssec (input_bfd);
4604 else if ((type & N_TYPE) == N_ABS
4605 || type == N_WEAKA)
4606 r_section = bfd_abs_section_ptr;
4607 else
4608 abort ();
4609 relocation = (r_section->output_section->vma
4610 + r_section->output_offset
4611 + (GET_WORD (input_bfd, sym->e_value)
4612 - r_section->vma));
4613 }
252b5132
RH		 4614 else
4615 {
116c20d2 4616 r_section = aout_reloc_index_to_section (input_bfd, r_index);
252b5132 4617
116c20d2
NC		 4618 /* If this is a PC relative reloc, then R_ADDEND is the
4619 difference between the two vmas, or
4620 old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
4621 where
4622 old_dest_sec == section->vma
4623 and
4624 old_src_sec == input_section->vma
4625 and
4626 old_src_off == r_addr
4627
4628 _bfd_final_link_relocate expects RELOCATION +
4629 R_ADDEND to be the VMA of the destination minus
4630 r_addr (the minus r_addr is because this relocation
4631 is not pcrel_offset, which is a bit confusing and
4632 should, perhaps, be changed), or
4633 new_dest_sec
4634 where
4635 new_dest_sec == output_section->vma + output_offset
4636 We arrange for this to happen by setting RELOCATION to
4637 new_dest_sec + old_src_sec - old_dest_sec
4638
4639 If this is not a PC relative reloc, then R_ADDEND is
4640 simply the VMA of the destination, so we set
4641 RELOCATION to the change in the destination VMA, or
4642 new_dest_sec - old_dest_sec
4643 */
4644 relocation = (r_section->output_section->vma
4645 + r_section->output_offset
4646 - r_section->vma);
4647 if (howto_table_ext[r_type].pc_relative)
252b5132
RH		 4648 relocation += input_section->vma;
4649 }
4650
4651 if (check_dynamic_reloc != NULL)
4652 {
b34976b6 4653 bfd_boolean skip;
252b5132
RH		 4654
4655 if (! ((*check_dynamic_reloc)
57402f1e 4656 (flaginfo->info, input_bfd, input_section, h,
116c20d2 4657 (void *) rel, contents, &skip, &relocation)))
b34976b6 4658 return FALSE;
252b5132
RH		 4659 if (skip)
4660 continue;
4661 }
4662
4663 /* Now warn if a global symbol is undefined. We could not
4664 do this earlier, because check_dynamic_reloc might want
4665 to skip this reloc. */
116c20d2 4666 if (hundef
0e1862bb 4667 && ! bfd_link_pic (flaginfo->info)
116c20d2
NC		 4668 && r_type != (unsigned int) RELOC_BASE10
4669 && r_type != (unsigned int) RELOC_BASE13
4670 && r_type != (unsigned int) RELOC_BASE22)
252b5132
RH		 4671 {
4672 const char *name;
4673
4674 if (h != NULL)
4675 name = h->root.root.string;
4676 else
4677 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4678 (*flaginfo->info->callbacks->undefined_symbol)
4679 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
252b5132
RH		 4680 }
4681
116c20d2
NC		 4682 if (r_type != (unsigned int) RELOC_SPARC_REV32)
4683 r = MY_final_link_relocate (howto_table_ext + r_type,
4684 input_bfd, input_section,
4685 contents, r_addr, relocation,
4686 r_addend);
4687 else
252b5132 4688 {
116c20d2 4689 bfd_vma x;
252b5132 4690
116c20d2
NC		 4691 x = bfd_get_32 (input_bfd, contents + r_addr);
4692 x = x + relocation + r_addend;
4693 bfd_putl32 (/*input_bfd,*/ x, contents + r_addr);
4694 r = bfd_reloc_ok;
4695 }
4696
4697 if (r != bfd_reloc_ok)
4698 {
4699 switch (r)
4700 {
4701 default:
4702 case bfd_reloc_outofrange:
4703 abort ();
4704 case bfd_reloc_overflow:
252b5132 4705 {
116c20d2 4706 const char *name;
252b5132 4707
116c20d2
NC		 4708 if (h != NULL)
4709 name = NULL;
4710 else if (r_extern
4711 || r_type == (unsigned int) RELOC_BASE10
4712 || r_type == (unsigned int) RELOC_BASE13
4713 || r_type == (unsigned int) RELOC_BASE22)
4714 name = strings + GET_WORD (input_bfd,
4715 syms[r_index].e_strx);
4716 else
4717 {
4718 asection *s;
4719
4720 s = aout_reloc_index_to_section (input_bfd, r_index);
4721 name = bfd_section_name (input_bfd, s);
4722 }
1a72702b
AM		 4723 (*flaginfo->info->callbacks->reloc_overflow)
4724 (flaginfo->info, (h ? &h->root : NULL), name,
4725 howto_table_ext[r_type].name,
4726 r_addend, input_bfd, input_section, r_addr);
252b5132 4727 }
116c20d2
NC		 4728 break;
4729 }
252b5132
RH		 4730 }
4731 }
4732 }
4733
b34976b6 4734 return TRUE;
252b5132
RH		 4735}
4736
116c20d2
NC		 4737/* Link an a.out section into the output file. */
4738
4739static bfd_boolean
57402f1e 4740aout_link_input_section (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4741 bfd *input_bfd,
4742 asection *input_section,
4743 file_ptr *reloff_ptr,
4744 bfd_size_type rel_size)
4745{
4746 bfd_size_type input_size;
4747 void * relocs;
4748
4749 /* Get the section contents. */
4750 input_size = input_section->size;
4751 if (! bfd_get_section_contents (input_bfd, input_section,
57402f1e 4752 (void *) flaginfo->contents,
116c20d2
NC		 4753 (file_ptr) 0, input_size))
4754 return FALSE;
4755
4756 /* Read in the relocs if we haven't already done it. */
4757 if (aout_section_data (input_section) != NULL
4758 && aout_section_data (input_section)->relocs != NULL)
4759 relocs = aout_section_data (input_section)->relocs;
4760 else
4761 {
57402f1e 4762 relocs = flaginfo->relocs;
116c20d2
NC		 4763 if (rel_size > 0)
4764 {
4765 if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
4766 || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
4767 return FALSE;
4768 }
4769 }
4770
4771 /* Relocate the section contents. */
4772 if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE)
4773 {
57402f1e 4774 if (! aout_link_input_section_std (flaginfo, input_bfd, input_section,
116c20d2 4775 (struct reloc_std_external *) relocs,
57402f1e 4776 rel_size, flaginfo->contents))
116c20d2
NC		 4777 return FALSE;
4778 }
4779 else
4780 {
57402f1e 4781 if (! aout_link_input_section_ext (flaginfo, input_bfd, input_section,
116c20d2 4782 (struct reloc_ext_external *) relocs,
57402f1e 4783 rel_size, flaginfo->contents))
116c20d2
NC		 4784 return FALSE;
4785 }
4786
4787 /* Write out the section contents. */
57402f1e 4788 if (! bfd_set_section_contents (flaginfo->output_bfd,
116c20d2 4789 input_section->output_section,
57402f1e 4790 (void *) flaginfo->contents,
116c20d2
NC		 4791 (file_ptr) input_section->output_offset,
4792 input_size))
4793 return FALSE;
4794
4795 /* If we are producing relocatable output, the relocs were
4796 modified, and we now write them out. */
0e1862bb 4797 if (bfd_link_relocatable (flaginfo->info) && rel_size > 0)
116c20d2 4798 {
57402f1e 4799 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
116c20d2 4800 return FALSE;
57402f1e 4801 if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size)
116c20d2
NC		 4802 return FALSE;
4803 *reloff_ptr += rel_size;
4804
4805 /* Assert that the relocs have not run into the symbols, and
4806 that if these are the text relocs they have not run into the
4807 data relocs. */
57402f1e
NC		 4808 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
4809 && (reloff_ptr != &flaginfo->treloff
116c20d2 4810 || (*reloff_ptr
57402f1e 4811 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 4812 }
4813
4814 return TRUE;
4815}
4816
4817/* Adjust and write out the symbols for an a.out file. Set the new
4818 symbol indices into a symbol_map. */
252b5132 4819
b34976b6 4820static bfd_boolean
57402f1e 4821aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd)
252b5132 4822{
252b5132 4823 bfd *output_bfd;
116c20d2 4824 bfd_size_type sym_count;
252b5132 4825 char *strings;
116c20d2
NC		 4826 enum bfd_link_strip strip;
4827 enum bfd_link_discard discard;
4828 struct external_nlist *outsym;
4829 bfd_size_type strtab_index;
4830 struct external_nlist *sym;
4831 struct external_nlist *sym_end;
4832 struct aout_link_hash_entry **sym_hash;
252b5132 4833 int *symbol_map;
116c20d2
NC		 4834 bfd_boolean pass;
4835 bfd_boolean skip_next;
252b5132 4836
57402f1e 4837 output_bfd = flaginfo->output_bfd;
116c20d2
NC		 4838 sym_count = obj_aout_external_sym_count (input_bfd);
4839 strings = obj_aout_external_strings (input_bfd);
57402f1e
NC		 4840 strip = flaginfo->info->strip;
4841 discard = flaginfo->info->discard;
4842 outsym = flaginfo->output_syms;
252b5132 4843
116c20d2
NC		 4844 /* First write out a symbol for this object file, unless we are
4845 discarding such symbols. */
4846 if (strip != strip_all
4847 && (strip != strip_some
57402f1e 4848 || bfd_hash_lookup (flaginfo->info->keep_hash, input_bfd->filename,
116c20d2
NC		 4849 FALSE, FALSE) != NULL)
4850 && discard != discard_all)
4851 {
4852 H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
4853 H_PUT_8 (output_bfd, 0, outsym->e_other);
4854 H_PUT_16 (output_bfd, 0, outsym->e_desc);
57402f1e 4855 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 4856 input_bfd->filename, FALSE);
4857 if (strtab_index == (bfd_size_type) -1)
4858 return FALSE;
4859 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
4860 PUT_WORD (output_bfd,
4861 (bfd_get_section_vma (output_bfd,
4862 obj_textsec (input_bfd)->output_section)
4863 + obj_textsec (input_bfd)->output_offset),
4864 outsym->e_value);
4865 ++obj_aout_external_sym_count (output_bfd);
4866 ++outsym;
4867 }
252b5132 4868
116c20d2
NC		 4869 pass = FALSE;
4870 skip_next = FALSE;
4871 sym = obj_aout_external_syms (input_bfd);
4872 sym_end = sym + sym_count;
4873 sym_hash = obj_aout_sym_hashes (input_bfd);
57402f1e 4874 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4875 memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map);
4876 for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
252b5132 4877 {
116c20d2
NC		 4878 const char *name;
4879 int type;
4880 struct aout_link_hash_entry *h;
4881 bfd_boolean skip;
4882 asection *symsec;
4883 bfd_vma val = 0;
4884 bfd_boolean copy;
252b5132 4885
116c20d2
NC		 4886 /* We set *symbol_map to 0 above for all symbols. If it has
4887 already been set to -1 for this symbol, it means that we are
4888 discarding it because it appears in a duplicate header file.
4889 See the N_BINCL code below. */
4890 if (*symbol_map == -1)
4891 continue;
252b5132 4892
116c20d2
NC		 4893 /* Initialize *symbol_map to -1, which means that the symbol was
4894 not copied into the output file. We will change it later if
4895 we do copy the symbol over. */
4896 *symbol_map = -1;
4897
4898 type = H_GET_8 (input_bfd, sym->e_type);
4899 name = strings + GET_WORD (input_bfd, sym->e_strx);
4900
4901 h = NULL;
4902
4903 if (pass)
252b5132 4904 {
116c20d2
NC		 4905 /* Pass this symbol through. It is the target of an
4906 indirect or warning symbol. */
4907 val = GET_WORD (input_bfd, sym->e_value);
4908 pass = FALSE;
252b5132 4909 }
116c20d2 4910 else if (skip_next)
252b5132 4911 {
116c20d2
NC		 4912 /* Skip this symbol, which is the target of an indirect
4913 symbol that we have changed to no longer be an indirect
4914 symbol. */
4915 skip_next = FALSE;
4916 continue;
252b5132 4917 }
116c20d2
NC		 4918 else
4919 {
4920 struct aout_link_hash_entry *hresolve;
252b5132 4921
116c20d2
NC		 4922 /* We have saved the hash table entry for this symbol, if
4923 there is one. Note that we could just look it up again
4924 in the hash table, provided we first check that it is an
4925 external symbol. */
4926 h = *sym_hash;
252b5132 4927
116c20d2
NC		 4928 /* Use the name from the hash table, in case the symbol was
4929 wrapped. */
4930 if (h != NULL
4931 && h->root.type != bfd_link_hash_warning)
4932 name = h->root.root.string;
252b5132 4933
116c20d2
NC		 4934 /* If this is an indirect or warning symbol, then change
4935 hresolve to the base symbol. We also change *sym_hash so
4936 that the relocation routines relocate against the real
4937 symbol. */
4938 hresolve = h;
4939 if (h != (struct aout_link_hash_entry *) NULL
4940 && (h->root.type == bfd_link_hash_indirect
4941 || h->root.type == bfd_link_hash_warning))
252b5132 4942 {
116c20d2
NC		 4943 hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
4944 while (hresolve->root.type == bfd_link_hash_indirect
4945 || hresolve->root.type == bfd_link_hash_warning)
4946 hresolve = ((struct aout_link_hash_entry *)
4947 hresolve->root.u.i.link);
4948 *sym_hash = hresolve;
4949 }
4950
4951 /* If the symbol has already been written out, skip it. */
4952 if (h != NULL
4953 && h->written)
4954 {
4955 if ((type & N_TYPE) == N_INDR
4956 || type == N_WARNING)
4957 skip_next = TRUE;
4958 *symbol_map = h->indx;
4959 continue;
4960 }
4961
4962 /* See if we are stripping this symbol. */
4963 skip = FALSE;
4964 switch (strip)
4965 {
4966 case strip_none:
4967 break;
4968 case strip_debugger:
4969 if ((type & N_STAB) != 0)
4970 skip = TRUE;
4971 break;
4972 case strip_some:
57402f1e 4973 if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE)
116c20d2
NC		 4974 == NULL)
4975 skip = TRUE;
4976 break;
4977 case strip_all:
4978 skip = TRUE;
4979 break;
4980 }
4981 if (skip)
4982 {
4983 if (h != NULL)
4984 h->written = TRUE;
4985 continue;
4986 }
4987
4988 /* Get the value of the symbol. */
4989 if ((type & N_TYPE) == N_TEXT
4990 || type == N_WEAKT)
4991 symsec = obj_textsec (input_bfd);
4992 else if ((type & N_TYPE) == N_DATA
4993 || type == N_WEAKD)
4994 symsec = obj_datasec (input_bfd);
4995 else if ((type & N_TYPE) == N_BSS
4996 || type == N_WEAKB)
4997 symsec = obj_bsssec (input_bfd);
4998 else if ((type & N_TYPE) == N_ABS
4999 || type == N_WEAKA)
5000 symsec = bfd_abs_section_ptr;
5001 else if (((type & N_TYPE) == N_INDR
5002 && (hresolve == NULL
5003 || (hresolve->root.type != bfd_link_hash_defined
5004 && hresolve->root.type != bfd_link_hash_defweak
5005 && hresolve->root.type != bfd_link_hash_common)))
5006 || type == N_WARNING)
5007 {
5008 /* Pass the next symbol through unchanged. The
5009 condition above for indirect symbols is so that if
5010 the indirect symbol was defined, we output it with
5011 the correct definition so the debugger will
5012 understand it. */
5013 pass = TRUE;
5014 val = GET_WORD (input_bfd, sym->e_value);
5015 symsec = NULL;
5016 }
5017 else if ((type & N_STAB) != 0)
5018 {
5019 val = GET_WORD (input_bfd, sym->e_value);
5020 symsec = NULL;
5021 }
5022 else
5023 {
5024 /* If we get here with an indirect symbol, it means that
5025 we are outputting it with a real definition. In such
5026 a case we do not want to output the next symbol,
5027 which is the target of the indirection. */
5028 if ((type & N_TYPE) == N_INDR)
5029 skip_next = TRUE;
5030
5031 symsec = NULL;
5032
5033 /* We need to get the value from the hash table. We use
5034 hresolve so that if we have defined an indirect
5035 symbol we output the final definition. */
5036 if (h == NULL)
5037 {
5038 switch (type & N_TYPE)
5039 {
5040 case N_SETT:
5041 symsec = obj_textsec (input_bfd);
5042 break;
5043 case N_SETD:
5044 symsec = obj_datasec (input_bfd);
5045 break;
5046 case N_SETB:
5047 symsec = obj_bsssec (input_bfd);
5048 break;
5049 case N_SETA:
5050 symsec = bfd_abs_section_ptr;
5051 break;
5052 default:
5053 val = 0;
5054 break;
5055 }
5056 }
5057 else if (hresolve->root.type == bfd_link_hash_defined
5058 || hresolve->root.type == bfd_link_hash_defweak)
252b5132 5059 {
116c20d2 5060 asection *input_section;
252b5132
RH		 5061 asection *output_section;
5062
116c20d2
NC		 5063 /* This case usually means a common symbol which was
5064 turned into a defined symbol. */
5065 input_section = hresolve->root.u.def.section;
5066 output_section = input_section->output_section;
5067 BFD_ASSERT (bfd_is_abs_section (output_section)
5068 || output_section->owner == output_bfd);
5069 val = (hresolve->root.u.def.value
5070 + bfd_get_section_vma (output_bfd, output_section)
5071 + input_section->output_offset);
5072
5073 /* Get the correct type based on the section. If
5074 this is a constructed set, force it to be
5075 globally visible. */
5076 if (type == N_SETT
5077 || type == N_SETD
5078 || type == N_SETB
5079 || type == N_SETA)
5080 type |= N_EXT;
5081
5082 type &=~ N_TYPE;
252b5132 5083
252b5132 5084 if (output_section == obj_textsec (output_bfd))
116c20d2
NC		 5085 type |= (hresolve->root.type == bfd_link_hash_defined
5086 ? N_TEXT
5087 : N_WEAKT);
252b5132 5088 else if (output_section == obj_datasec (output_bfd))
116c20d2
NC		 5089 type |= (hresolve->root.type == bfd_link_hash_defined
5090 ? N_DATA
5091 : N_WEAKD);
252b5132 5092 else if (output_section == obj_bsssec (output_bfd))
116c20d2
NC		 5093 type |= (hresolve->root.type == bfd_link_hash_defined
5094 ? N_BSS
5095 : N_WEAKB);
252b5132 5096 else
116c20d2
NC		 5097 type |= (hresolve->root.type == bfd_link_hash_defined
5098 ? N_ABS
5099 : N_WEAKA);
5100 }
5101 else if (hresolve->root.type == bfd_link_hash_common)
5102 val = hresolve->root.u.c.size;
5103 else if (hresolve->root.type == bfd_link_hash_undefweak)
5104 {
5105 val = 0;
5106 type = N_WEAKU;
252b5132
RH		 5107 }
5108 else
116c20d2
NC		 5109 val = 0;
5110 }
5111 if (symsec != NULL)
5112 val = (symsec->output_section->vma
5113 + symsec->output_offset
5114 + (GET_WORD (input_bfd, sym->e_value)
5115 - symsec->vma));
5116
5117 /* If this is a global symbol set the written flag, and if
5118 it is a local symbol see if we should discard it. */
5119 if (h != NULL)
5120 {
5121 h->written = TRUE;
5122 h->indx = obj_aout_external_sym_count (output_bfd);
5123 }
5124 else if ((type & N_TYPE) != N_SETT
5125 && (type & N_TYPE) != N_SETD
5126 && (type & N_TYPE) != N_SETB
5127 && (type & N_TYPE) != N_SETA)
5128 {
5129 switch (discard)
252b5132 5130 {
116c20d2
NC		 5131 case discard_none:
5132 case discard_sec_merge:
5133 break;
5134 case discard_l:
5135 if ((type & N_STAB) == 0
5136 && bfd_is_local_label_name (input_bfd, name))
5137 skip = TRUE;
5138 break;
5139 case discard_all:
5140 skip = TRUE;
5141 break;
5142 }
5143 if (skip)
5144 {
5145 pass = FALSE;
5146 continue;
5147 }
5148 }
252b5132 5149
116c20d2
NC		 5150 /* An N_BINCL symbol indicates the start of the stabs
5151 entries for a header file. We need to scan ahead to the
5152 next N_EINCL symbol, ignoring nesting, adding up all the
5153 characters in the symbol names, not including the file
5154 numbers in types (the first number after an open
5155 parenthesis). */
5156 if (type == (int) N_BINCL)
5157 {
5158 struct external_nlist *incl_sym;
5159 int nest;
5160 struct aout_link_includes_entry *incl_entry;
5161 struct aout_link_includes_totals *t;
5162
5163 val = 0;
5164 nest = 0;
5165 for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
5166 {
5167 int incl_type;
5168
5169 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5170 if (incl_type == (int) N_EINCL)
252b5132 5171 {
116c20d2
NC		 5172 if (nest == 0)
5173 break;
5174 --nest;
5175 }
5176 else if (incl_type == (int) N_BINCL)
5177 ++nest;
5178 else if (nest == 0)
5179 {
5180 const char *s;
5181
5182 s = strings + GET_WORD (input_bfd, incl_sym->e_strx);
5183 for (; *s != '\0'; s++)
252b5132 5184 {
116c20d2
NC		 5185 val += *s;
5186 if (*s == '(')
252b5132 5187 {
116c20d2
NC		 5188 /* Skip the file number. */
5189 ++s;
5190 while (ISDIGIT (*s))
5191 ++s;
5192 --s;
252b5132 5193 }
252b5132 5194 }
116c20d2
NC		 5195 }
5196 }
252b5132 5197
116c20d2
NC		 5198 /* If we have already included a header file with the
5199 same value, then replace this one with an N_EXCL
5200 symbol. */
57402f1e
NC		 5201 copy = (bfd_boolean) (! flaginfo->info->keep_memory);
5202 incl_entry = aout_link_includes_lookup (&flaginfo->includes,
116c20d2
NC		 5203 name, TRUE, copy);
5204 if (incl_entry == NULL)
5205 return FALSE;
5206 for (t = incl_entry->totals; t != NULL; t = t->next)
5207 if (t->total == val)
5208 break;
5209 if (t == NULL)
5210 {
5211 /* This is the first time we have seen this header
5212 file with this set of stabs strings. */
a50b1753 5213 t = (struct aout_link_includes_totals *)
57402f1e 5214 bfd_hash_allocate (&flaginfo->includes.root,
116c20d2
NC		 5215 sizeof *t);
5216 if (t == NULL)
5217 return FALSE;
5218 t->total = val;
5219 t->next = incl_entry->totals;
5220 incl_entry->totals = t;
5221 }
5222 else
5223 {
5224 int *incl_map;
5225
5226 /* This is a duplicate header file. We must change
5227 it to be an N_EXCL entry, and mark all the
5228 included symbols to prevent outputting them. */
5229 type = (int) N_EXCL;
5230
5231 nest = 0;
5232 for (incl_sym = sym + 1, incl_map = symbol_map + 1;
5233 incl_sym < sym_end;
5234 incl_sym++, incl_map++)
5235 {
5236 int incl_type;
5237
5238 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5239 if (incl_type == (int) N_EINCL)
5240 {
5241 if (nest == 0)
5242 {
5243 *incl_map = -1;
5244 break;
5245 }
5246 --nest;
252b5132 5247 }
116c20d2
NC		 5248 else if (incl_type == (int) N_BINCL)
5249 ++nest;
5250 else if (nest == 0)
5251 *incl_map = -1;
252b5132 5252 }
252b5132
RH		 5253 }
5254 }
116c20d2
NC		 5255 }
5256
5257 /* Copy this symbol into the list of symbols we are going to
5258 write out. */
5259 H_PUT_8 (output_bfd, type, outsym->e_type);
5260 H_PUT_8 (output_bfd, H_GET_8 (input_bfd, sym->e_other), outsym->e_other);
5261 H_PUT_16 (output_bfd, H_GET_16 (input_bfd, sym->e_desc), outsym->e_desc);
5262 copy = FALSE;
57402f1e 5263 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5264 {
5265 /* name points into a string table which we are going to
5266 free. If there is a hash table entry, use that string.
5267 Otherwise, copy name into memory. */
5268 if (h != NULL)
5269 name = h->root.root.string;
252b5132 5270 else
116c20d2
NC		 5271 copy = TRUE;
5272 }
57402f1e 5273 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 5274 name, copy);
5275 if (strtab_index == (bfd_size_type) -1)
5276 return FALSE;
5277 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
5278 PUT_WORD (output_bfd, val, outsym->e_value);
5279 *symbol_map = obj_aout_external_sym_count (output_bfd);
5280 ++obj_aout_external_sym_count (output_bfd);
5281 ++outsym;
5282 }
252b5132 5283
116c20d2 5284 /* Write out the output symbols we have just constructed. */
57402f1e 5285 if (outsym > flaginfo->output_syms)
116c20d2
NC		 5286 {
5287 bfd_size_type outsym_size;
252b5132 5288
57402f1e 5289 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0)
116c20d2 5290 return FALSE;
57402f1e 5291 outsym_size = outsym - flaginfo->output_syms;
116c20d2 5292 outsym_size *= EXTERNAL_NLIST_SIZE;
57402f1e 5293 if (bfd_bwrite ((void *) flaginfo->output_syms, outsym_size, output_bfd)
116c20d2
NC		 5294 != outsym_size)
5295 return FALSE;
57402f1e 5296 flaginfo->symoff += outsym_size;
116c20d2 5297 }
252b5132 5298
116c20d2
NC		 5299 return TRUE;
5300}
252b5132 5301
116c20d2 5302/* Link an a.out input BFD into the output file. */
252b5132 5303
116c20d2 5304static bfd_boolean
57402f1e 5305aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd)
116c20d2 5306{
116c20d2 5307 BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
252b5132 5308
116c20d2
NC		 5309 /* If this is a dynamic object, it may need special handling. */
5310 if ((input_bfd->flags & DYNAMIC) != 0
5311 && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
5312 return ((*aout_backend_info (input_bfd)->link_dynamic_object)
57402f1e 5313 (flaginfo->info, input_bfd));
252b5132 5314
116c20d2 5315 /* Get the symbols. We probably have them already, unless
57402f1e 5316 flaginfo->info->keep_memory is FALSE. */
116c20d2
NC		 5317 if (! aout_get_external_symbols (input_bfd))
5318 return FALSE;
252b5132 5319
116c20d2 5320 /* Write out the symbols and get a map of the new indices. The map
57402f1e
NC		 5321 is placed into flaginfo->symbol_map. */
5322 if (! aout_link_write_symbols (flaginfo, input_bfd))
116c20d2 5323 return FALSE;
252b5132 5324
116c20d2
NC		 5325 /* Relocate and write out the sections. These functions use the
5326 symbol map created by aout_link_write_symbols. The linker_mark
5327 field will be set if these sections are to be included in the
5328 link, which will normally be the case. */
5329 if (obj_textsec (input_bfd)->linker_mark)
5330 {
57402f1e 5331 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5332 obj_textsec (input_bfd),
57402f1e 5333 &flaginfo->treloff,
116c20d2
NC		 5334 exec_hdr (input_bfd)->a_trsize))
5335 return FALSE;
5336 }
5337 if (obj_datasec (input_bfd)->linker_mark)
5338 {
57402f1e 5339 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5340 obj_datasec (input_bfd),
57402f1e 5341 &flaginfo->dreloff,
116c20d2
NC		 5342 exec_hdr (input_bfd)->a_drsize))
5343 return FALSE;
5344 }
5345
5346 /* If we are not keeping memory, we don't need the symbols any
5347 longer. We still need them if we are keeping memory, because the
5348 strings in the hash table point into them. */
57402f1e 5349 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5350 {
5351 if (! aout_link_free_symbols (input_bfd))
5352 return FALSE;
5353 }
5354
5355 return TRUE;
5356}
5357
5358/* Do the final link step. This is called on the output BFD. The
5359 INFO structure should point to a list of BFDs linked through the
c72f2fb2 5360 link.next field which can be used to find each BFD which takes part
116c20d2
NC		 5361 in the output. Also, each section in ABFD should point to a list
5362 of bfd_link_order structures which list all the input sections for
5363 the output section. */
5364
5365bfd_boolean
5366NAME (aout, final_link) (bfd *abfd,
5367 struct bfd_link_info *info,
5368 void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *))
5369{
5370 struct aout_final_link_info aout_info;
5371 bfd_boolean includes_hash_initialized = FALSE;
5372 bfd *sub;
5373 bfd_size_type trsize, drsize;
5374 bfd_size_type max_contents_size;
5375 bfd_size_type max_relocs_size;
5376 bfd_size_type max_sym_count;
116c20d2
NC		 5377 struct bfd_link_order *p;
5378 asection *o;
5379 bfd_boolean have_link_order_relocs;
5380
0e1862bb 5381 if (bfd_link_pic (info))
116c20d2
NC		 5382 abfd->flags |= DYNAMIC;
5383
5384 aout_info.info = info;
5385 aout_info.output_bfd = abfd;
5386 aout_info.contents = NULL;
5387 aout_info.relocs = NULL;
5388 aout_info.symbol_map = NULL;
5389 aout_info.output_syms = NULL;
252b5132 5390
66eb6687
AM		 5391 if (!bfd_hash_table_init_n (&aout_info.includes.root,
5392 aout_link_includes_newfunc,
5393 sizeof (struct aout_link_includes_entry),
5394 251))
116c20d2
NC		 5395 goto error_return;
5396 includes_hash_initialized = TRUE;
252b5132 5397
116c20d2
NC		 5398 /* Figure out the largest section size. Also, if generating
5399 relocatable output, count the relocs. */
5400 trsize = 0;
5401 drsize = 0;
5402 max_contents_size = 0;
5403 max_relocs_size = 0;
5404 max_sym_count = 0;
c72f2fb2 5405 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2
NC		 5406 {
5407 bfd_size_type sz;
252b5132 5408
0e1862bb 5409 if (bfd_link_relocatable (info))
116c20d2
NC		 5410 {
5411 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
252b5132 5412 {
116c20d2
NC		 5413 trsize += exec_hdr (sub)->a_trsize;
5414 drsize += exec_hdr (sub)->a_drsize;
252b5132 5415 }
252b5132
RH		 5416 else
5417 {
116c20d2
NC		 5418 /* FIXME: We need to identify the .text and .data sections
5419 and call get_reloc_upper_bound and canonicalize_reloc to
5420 work out the number of relocs needed, and then multiply
5421 by the reloc size. */
4eca0228 5422 _bfd_error_handler
695344c0 5423 /* xgettext:c-format */
dae82561
AM		 5424 (_("%B: relocatable link from %s to %s not supported"),
5425 abfd, sub->xvec->name, abfd->xvec->name);
116c20d2
NC		 5426 bfd_set_error (bfd_error_invalid_operation);
5427 goto error_return;
252b5132 5428 }
116c20d2 5429 }
252b5132 5430
116c20d2
NC		 5431 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
5432 {
5433 sz = obj_textsec (sub)->size;
5434 if (sz > max_contents_size)
5435 max_contents_size = sz;
5436 sz = obj_datasec (sub)->size;
5437 if (sz > max_contents_size)
5438 max_contents_size = sz;
252b5132 5439
116c20d2
NC		 5440 sz = exec_hdr (sub)->a_trsize;
5441 if (sz > max_relocs_size)
5442 max_relocs_size = sz;
5443 sz = exec_hdr (sub)->a_drsize;
5444 if (sz > max_relocs_size)
5445 max_relocs_size = sz;
252b5132 5446
116c20d2
NC		 5447 sz = obj_aout_external_sym_count (sub);
5448 if (sz > max_sym_count)
5449 max_sym_count = sz;
252b5132
RH		 5450 }
5451 }
5452
0e1862bb 5453 if (bfd_link_relocatable (info))
116c20d2
NC		 5454 {
5455 if (obj_textsec (abfd) != NULL)
5456 trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
8423293d 5457 ->map_head.link_order)
116c20d2
NC		 5458 * obj_reloc_entry_size (abfd));
5459 if (obj_datasec (abfd) != NULL)
5460 drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
8423293d 5461 ->map_head.link_order)
116c20d2
NC		 5462 * obj_reloc_entry_size (abfd));
5463 }
252b5132 5464
116c20d2
NC		 5465 exec_hdr (abfd)->a_trsize = trsize;
5466 exec_hdr (abfd)->a_drsize = drsize;
252b5132 5467
116c20d2 5468 exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
252b5132 5469
116c20d2
NC		 5470 /* Adjust the section sizes and vmas according to the magic number.
5471 This sets a_text, a_data and a_bss in the exec_hdr and sets the
5472 filepos for each section. */
3a8c4a5b 5473 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
116c20d2 5474 goto error_return;
252b5132 5475
116c20d2
NC		 5476 /* The relocation and symbol file positions differ among a.out
5477 targets. We are passed a callback routine from the backend
5478 specific code to handle this.
5479 FIXME: At this point we do not know how much space the symbol
5480 table will require. This will not work for any (nonstandard)
5481 a.out target that needs to know the symbol table size before it
5482 can compute the relocation file positions. This may or may not
5483 be the case for the hp300hpux target, for example. */
5484 (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
5485 &aout_info.symoff);
5486 obj_textsec (abfd)->rel_filepos = aout_info.treloff;
5487 obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
5488 obj_sym_filepos (abfd) = aout_info.symoff;
252b5132 5489
116c20d2
NC		 5490 /* We keep a count of the symbols as we output them. */
5491 obj_aout_external_sym_count (abfd) = 0;
5492
5493 /* We accumulate the string table as we write out the symbols. */
5494 aout_info.strtab = _bfd_stringtab_init ();
5495 if (aout_info.strtab == NULL)
5496 goto error_return;
5497
5498 /* Allocate buffers to hold section contents and relocs. */
a50b1753 5499 aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
116c20d2 5500 aout_info.relocs = bfd_malloc (max_relocs_size);
c38eb2a6 5501 aout_info.symbol_map = (int *) bfd_malloc (max_sym_count * sizeof (int));
a50b1753
NC		 5502 aout_info.output_syms = (struct external_nlist *)
5503 bfd_malloc ((max_sym_count + 1) * sizeof (struct external_nlist));
116c20d2
NC		 5504 if ((aout_info.contents == NULL && max_contents_size != 0)
5505 || (aout_info.relocs == NULL && max_relocs_size != 0)
5506 || (aout_info.symbol_map == NULL && max_sym_count != 0)
5507 || aout_info.output_syms == NULL)
5508 goto error_return;
5509
5510 /* If we have a symbol named __DYNAMIC, force it out now. This is
5511 required by SunOS. Doing this here rather than in sunos.c is a
5512 hack, but it's easier than exporting everything which would be
5513 needed. */
5514 {
5515 struct aout_link_hash_entry *h;
5516
5517 h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
5518 FALSE, FALSE, FALSE);
5519 if (h != NULL)
7686d77d 5520 aout_link_write_other_symbol (&h->root.root, &aout_info);
116c20d2
NC		 5521 }
5522
5523 /* The most time efficient way to do the link would be to read all
5524 the input object files into memory and then sort out the
5525 information into the output file. Unfortunately, that will
5526 probably use too much memory. Another method would be to step
5527 through everything that composes the text section and write it
5528 out, and then everything that composes the data section and write
5529 it out, and then write out the relocs, and then write out the
5530 symbols. Unfortunately, that requires reading stuff from each
5531 input file several times, and we will not be able to keep all the
5532 input files open simultaneously, and reopening them will be slow.
5533
5534 What we do is basically process one input file at a time. We do
5535 everything we need to do with an input file once--copy over the
5536 section contents, handle the relocation information, and write
5537 out the symbols--and then we throw away the information we read
5538 from it. This approach requires a lot of lseeks of the output
5539 file, which is unfortunate but still faster than reopening a lot
5540 of files.
5541
5542 We use the output_has_begun field of the input BFDs to see
5543 whether we have already handled it. */
c72f2fb2 5544 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2 5545 sub->output_has_begun = FALSE;
252b5132 5546
116c20d2
NC		 5547 /* Mark all sections which are to be included in the link. This
5548 will normally be every section. We need to do this so that we
5549 can identify any sections which the linker has decided to not
5550 include. */
5551 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5552 {
8423293d 5553 for (p = o->map_head.link_order; p != NULL; p = p->next)
116c20d2
NC		 5554 if (p->type == bfd_indirect_link_order)
5555 p->u.indirect.section->linker_mark = TRUE;
252b5132
RH		 5556 }
5557
116c20d2
NC		 5558 have_link_order_relocs = FALSE;
5559 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5560 {
8423293d 5561 for (p = o->map_head.link_order;
116c20d2
NC		 5562 p != NULL;
5563 p = p->next)
252b5132 5564 {
116c20d2
NC		 5565 if (p->type == bfd_indirect_link_order
5566 && (bfd_get_flavour (p->u.indirect.section->owner)
5567 == bfd_target_aout_flavour))
252b5132 5568 {
116c20d2
NC		 5569 bfd *input_bfd;
5570
5571 input_bfd = p->u.indirect.section->owner;
5572 if (! input_bfd->output_has_begun)
252b5132 5573 {
116c20d2
NC		 5574 if (! aout_link_input_bfd (&aout_info, input_bfd))
5575 goto error_return;
5576 input_bfd->output_has_begun = TRUE;
252b5132 5577 }
252b5132 5578 }
116c20d2
NC		 5579 else if (p->type == bfd_section_reloc_link_order
5580 || p->type == bfd_symbol_reloc_link_order)
5581 {
5582 /* These are handled below. */
5583 have_link_order_relocs = TRUE;
5584 }
5585 else
5586 {
5587 if (! _bfd_default_link_order (abfd, info, o, p))
5588 goto error_return;
5589 }
252b5132
RH		 5590 }
5591 }
252b5132 5592
116c20d2 5593 /* Write out any symbols that we have not already written out. */
7686d77d
AM		 5594 bfd_hash_traverse (&info->hash->table,
5595 aout_link_write_other_symbol,
5596 &aout_info);
116c20d2
NC		 5597
5598 /* Now handle any relocs we were asked to create by the linker.
5599 These did not come from any input file. We must do these after
5600 we have written out all the symbols, so that we know the symbol
5601 indices to use. */
5602 if (have_link_order_relocs)
5603 {
5604 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5605 {
8423293d 5606 for (p = o->map_head.link_order;
116c20d2
NC		 5607 p != NULL;
5608 p = p->next)
5609 {
5610 if (p->type == bfd_section_reloc_link_order
5611 || p->type == bfd_symbol_reloc_link_order)
5612 {
5613 if (! aout_link_reloc_link_order (&aout_info, o, p))
5614 goto error_return;
5615 }
5616 }
252b5132 5617 }
116c20d2 5618 }
252b5132 5619
116c20d2
NC		 5620 if (aout_info.contents != NULL)
5621 {
5622 free (aout_info.contents);
5623 aout_info.contents = NULL;
5624 }
5625 if (aout_info.relocs != NULL)
5626 {
5627 free (aout_info.relocs);
5628 aout_info.relocs = NULL;
5629 }
5630 if (aout_info.symbol_map != NULL)
5631 {
5632 free (aout_info.symbol_map);
5633 aout_info.symbol_map = NULL;
5634 }
5635 if (aout_info.output_syms != NULL)
5636 {
5637 free (aout_info.output_syms);
5638 aout_info.output_syms = NULL;
5639 }
5640 if (includes_hash_initialized)
5641 {
5642 bfd_hash_table_free (&aout_info.includes.root);
5643 includes_hash_initialized = FALSE;
5644 }
252b5132 5645
116c20d2
NC		 5646 /* Finish up any dynamic linking we may be doing. */
5647 if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
5648 {
5649 if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
5650 goto error_return;
252b5132
RH		 5651 }
5652
116c20d2
NC		 5653 /* Update the header information. */
5654 abfd->symcount = obj_aout_external_sym_count (abfd);
5655 exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
5656 obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
5657 obj_textsec (abfd)->reloc_count =
5658 exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
5659 obj_datasec (abfd)->reloc_count =
5660 exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
252b5132 5661
116c20d2 5662 /* Write out the string table, unless there are no symbols. */
f6e688f7
AM		 5663 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0)
5664 goto error_return;
116c20d2
NC		 5665 if (abfd->symcount > 0)
5666 {
f6e688f7 5667 if (!emit_stringtab (abfd, aout_info.strtab))
116c20d2
NC		 5668 goto error_return;
5669 }
f6e688f7 5670 else
116c20d2 5671 {
f6e688f7 5672 bfd_byte b[BYTES_IN_WORD];
252b5132 5673
f6e688f7
AM		 5674 memset (b, 0, BYTES_IN_WORD);
5675 if (bfd_bwrite (b, (bfd_size_type) BYTES_IN_WORD, abfd) != BYTES_IN_WORD)
116c20d2
NC		 5676 goto error_return;
5677 }
252b5132 5678
b34976b6 5679 return TRUE;
116c20d2
NC		 5680
5681 error_return:
5682 if (aout_info.contents != NULL)
5683 free (aout_info.contents);
5684 if (aout_info.relocs != NULL)
5685 free (aout_info.relocs);
5686 if (aout_info.symbol_map != NULL)
5687 free (aout_info.symbol_map);
5688 if (aout_info.output_syms != NULL)
5689 free (aout_info.output_syms);
5690 if (includes_hash_initialized)
5691 bfd_hash_table_free (&aout_info.includes.root);
5692 return FALSE;
252b5132 5693}
GDB Binutils - Deliverables
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