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[ARM] Add ARMv8.3 VCMLA and VCADD instructions
[deliverable/binutils-gdb.git] / bfd / aoutx.h
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252b5132 1/* BFD semi-generic back-end for a.out binaries.
6f2750fe 2 Copyright (C) 1990-2016 Free Software Foundation, Inc.
252b5132
RH		 3 Written by Cygnus Support.
4
f7c33884 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
f7c33884
NC		 7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
cd123cb7 9 the Free Software Foundation; either version 3 of the License, or
f7c33884 10 (at your option) any later version.
252b5132 11
f7c33884
NC		 12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
252b5132 16
f7c33884
NC		 17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
cd123cb7
NC		 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
252b5132
RH		 21
22/*
23SECTION
24 a.out backends
25
252b5132
RH		 26DESCRIPTION
27
28 BFD supports a number of different flavours of a.out format,
29 though the major differences are only the sizes of the
30 structures on disk, and the shape of the relocation
31 information.
32
33 The support is split into a basic support file @file{aoutx.h}
34 and other files which derive functions from the base. One
35 derivation file is @file{aoutf1.h} (for a.out flavour 1), and
36 adds to the basic a.out functions support for sun3, sun4, 386
37 and 29k a.out files, to create a target jump vector for a
38 specific target.
39
40 This information is further split out into more specific files
41 for each machine, including @file{sunos.c} for sun3 and sun4,
42 @file{newsos3.c} for the Sony NEWS, and @file{demo64.c} for a
43 demonstration of a 64 bit a.out format.
44
45 The base file @file{aoutx.h} defines general mechanisms for
46 reading and writing records to and from disk and various
47 other methods which BFD requires. It is included by
48 @file{aout32.c} and @file{aout64.c} to form the names
49 <<aout_32_swap_exec_header_in>>, <<aout_64_swap_exec_header_in>>, etc.
50
51 As an example, this is what goes on to make the back end for a
52 sun4, from @file{aout32.c}:
53
54| #define ARCH_SIZE 32
55| #include "aoutx.h"
56
57 Which exports names:
58
59| ...
60| aout_32_canonicalize_reloc
61| aout_32_find_nearest_line
62| aout_32_get_lineno
63| aout_32_get_reloc_upper_bound
64| ...
65
66 from @file{sunos.c}:
67
68| #define TARGET_NAME "a.out-sunos-big"
6d00b590 69| #define VECNAME sparc_aout_sunos_be_vec
252b5132
RH		 70| #include "aoutf1.h"
71
72 requires all the names from @file{aout32.c}, and produces the jump vector
73
6d00b590 74| sparc_aout_sunos_be_vec
252b5132
RH		 75
76 The file @file{host-aout.c} is a special case. It is for a large set
77 of hosts that use ``more or less standard'' a.out files, and
78 for which cross-debugging is not interesting. It uses the
79 standard 32-bit a.out support routines, but determines the
80 file offsets and addresses of the text, data, and BSS
81 sections, the machine architecture and machine type, and the
82 entry point address, in a host-dependent manner. Once these
83 values have been determined, generic code is used to handle
84 the object file.
85
86 When porting it to run on a new system, you must supply:
87
88| HOST_PAGE_SIZE
89| HOST_SEGMENT_SIZE
90| HOST_MACHINE_ARCH (optional)
91| HOST_MACHINE_MACHINE (optional)
92| HOST_TEXT_START_ADDR
93| HOST_STACK_END_ADDR
94
95 in the file @file{../include/sys/h-@var{XXX}.h} (for your host). These
96 values, plus the structures and macros defined in @file{a.out.h} on
97 your host system, will produce a BFD target that will access
98 ordinary a.out files on your host. To configure a new machine
99 to use @file{host-aout.c}, specify:
100
101| TDEFAULTS = -DDEFAULT_VECTOR=host_aout_big_vec
102| TDEPFILES= host-aout.o trad-core.o
103
1110793a 104 in the @file{config/@var{XXX}.mt} file, and modify @file{configure.ac}
252b5132
RH		 105 to use the
106 @file{@var{XXX}.mt} file (by setting "<<bfd_target=XXX>>") when your
5ed6aba4 107 configuration is selected. */
252b5132
RH		 108
109/* Some assumptions:
110 * Any BFD with D_PAGED set is ZMAGIC, and vice versa.
111 Doesn't matter what the setting of WP_TEXT is on output, but it'll
112 get set on input.
113 * Any BFD with D_PAGED clear and WP_TEXT set is NMAGIC.
114 * Any BFD with both flags clear is OMAGIC.
115 (Just want to make these explicit, so the conditions tested in this
116 file make sense if you're more familiar with a.out than with BFD.) */
117
118#define KEEPIT udata.i
119
252b5132 120#include "sysdep.h"
3db64b00 121#include "bfd.h"
3882b010 122#include "safe-ctype.h"
252b5132
RH		 123#include "bfdlink.h"
124
125#include "libaout.h"
126#include "libbfd.h"
127#include "aout/aout64.h"
128#include "aout/stab_gnu.h"
129#include "aout/ar.h"
130
252b5132
RH		 131/*
132SUBSECTION
133 Relocations
134
135DESCRIPTION
136 The file @file{aoutx.h} provides for both the @emph{standard}
137 and @emph{extended} forms of a.out relocation records.
138
139 The standard records contain only an
140 address, a symbol index, and a type field. The extended records
141 (used on 29ks and sparcs) also have a full integer for an
5ed6aba4 142 addend. */
252b5132 143
252b5132
RH		 144#ifndef CTOR_TABLE_RELOC_HOWTO
145#define CTOR_TABLE_RELOC_IDX 2
923f08ff
AM		 146#define CTOR_TABLE_RELOC_HOWTO(BFD) \
147 ((obj_reloc_entry_size (BFD) == RELOC_EXT_SIZE \
148 ? howto_table_ext : howto_table_std) \
149 + CTOR_TABLE_RELOC_IDX)
252b5132
RH		 150#endif
151
152#ifndef MY_swap_std_reloc_in
116c20d2 153#define MY_swap_std_reloc_in NAME (aout, swap_std_reloc_in)
252b5132
RH		 154#endif
155
1642229e 156#ifndef MY_swap_ext_reloc_in
116c20d2 157#define MY_swap_ext_reloc_in NAME (aout, swap_ext_reloc_in)
1642229e
HPN		 158#endif
159
252b5132 160#ifndef MY_swap_std_reloc_out
116c20d2 161#define MY_swap_std_reloc_out NAME (aout, swap_std_reloc_out)
252b5132
RH		 162#endif
163
1642229e 164#ifndef MY_swap_ext_reloc_out
116c20d2 165#define MY_swap_ext_reloc_out NAME (aout, swap_ext_reloc_out)
1642229e
HPN		 166#endif
167
252b5132
RH		 168#ifndef MY_final_link_relocate
169#define MY_final_link_relocate _bfd_final_link_relocate
170#endif
171
172#ifndef MY_relocate_contents
173#define MY_relocate_contents _bfd_relocate_contents
174#endif
175
116c20d2
NC		 176#define howto_table_ext NAME (aout, ext_howto_table)
177#define howto_table_std NAME (aout, std_howto_table)
252b5132
RH		 178
179reloc_howto_type howto_table_ext[] =
180{
116c20d2
NC		 181 /* Type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone. */
182 HOWTO (RELOC_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, 0, "8", FALSE, 0, 0x000000ff, FALSE),
183 HOWTO (RELOC_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, 0, "16", FALSE, 0, 0x0000ffff, FALSE),
184 HOWTO (RELOC_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "32", FALSE, 0, 0xffffffff, FALSE),
185 HOWTO (RELOC_DISP8, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0, "DISP8", FALSE, 0, 0x000000ff, FALSE),
186 HOWTO (RELOC_DISP16, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0, "DISP16", FALSE, 0, 0x0000ffff, FALSE),
187 HOWTO (RELOC_DISP32, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0, "DISP32", FALSE, 0, 0xffffffff, FALSE),
188 HOWTO (RELOC_WDISP30, 2, 2, 30, TRUE, 0, complain_overflow_signed, 0, "WDISP30", FALSE, 0, 0x3fffffff, FALSE),
189 HOWTO (RELOC_WDISP22, 2, 2, 22, TRUE, 0, complain_overflow_signed, 0, "WDISP22", FALSE, 0, 0x003fffff, FALSE),
190 HOWTO (RELOC_HI22, 10, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "HI22", FALSE, 0, 0x003fffff, FALSE),
191 HOWTO (RELOC_22, 0, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "22", FALSE, 0, 0x003fffff, FALSE),
192 HOWTO (RELOC_13, 0, 2, 13, FALSE, 0, complain_overflow_bitfield, 0, "13", FALSE, 0, 0x00001fff, FALSE),
193 HOWTO (RELOC_LO10, 0, 2, 10, FALSE, 0, complain_overflow_dont, 0, "LO10", FALSE, 0, 0x000003ff, FALSE),
194 HOWTO (RELOC_SFA_BASE,0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "SFA_BASE", FALSE, 0, 0xffffffff, FALSE),
195 HOWTO (RELOC_SFA_OFF13,0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "SFA_OFF13", FALSE, 0, 0xffffffff, FALSE),
196 HOWTO (RELOC_BASE10, 0, 2, 10, FALSE, 0, complain_overflow_dont, 0, "BASE10", FALSE, 0, 0x000003ff, FALSE),
197 HOWTO (RELOC_BASE13, 0, 2, 13, FALSE, 0, complain_overflow_signed, 0, "BASE13", FALSE, 0, 0x00001fff, FALSE),
198 HOWTO (RELOC_BASE22, 10, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "BASE22", FALSE, 0, 0x003fffff, FALSE),
199 HOWTO (RELOC_PC10, 0, 2, 10, TRUE, 0, complain_overflow_dont, 0, "PC10", FALSE, 0, 0x000003ff, TRUE),
200 HOWTO (RELOC_PC22, 10, 2, 22, TRUE, 0, complain_overflow_signed, 0, "PC22", FALSE, 0, 0x003fffff, TRUE),
201 HOWTO (RELOC_JMP_TBL, 2, 2, 30, TRUE, 0, complain_overflow_signed, 0, "JMP_TBL", FALSE, 0, 0x3fffffff, FALSE),
202 HOWTO (RELOC_SEGOFF16,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "SEGOFF16", FALSE, 0, 0x00000000, FALSE),
203 HOWTO (RELOC_GLOB_DAT,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "GLOB_DAT", FALSE, 0, 0x00000000, FALSE),
204 HOWTO (RELOC_JMP_SLOT,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "JMP_SLOT", FALSE, 0, 0x00000000, FALSE),
205 HOWTO (RELOC_RELATIVE,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "RELATIVE", FALSE, 0, 0x00000000, FALSE),
6346d5ca
AM		 206 HOWTO (0, 0, 3, 0, FALSE, 0, complain_overflow_dont, 0, "R_SPARC_NONE",FALSE, 0, 0x00000000, TRUE),
207 HOWTO (0, 0, 3, 0, FALSE, 0, complain_overflow_dont, 0, "R_SPARC_NONE",FALSE, 0, 0x00000000, TRUE),
252b5132 208#define RELOC_SPARC_REV32 RELOC_WDISP19
116c20d2 209 HOWTO (RELOC_SPARC_REV32, 0, 2, 32, FALSE, 0, complain_overflow_dont, 0,"R_SPARC_REV32",FALSE, 0, 0xffffffff, FALSE),
252b5132
RH		 210};
211
212/* Convert standard reloc records to "arelent" format (incl byte swap). */
213
5ed6aba4
NC		 214reloc_howto_type howto_table_std[] =
215{
f7c33884 216 /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone. */
b34976b6
AM		 217HOWTO ( 0, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,0,"8", TRUE, 0x000000ff,0x000000ff, FALSE),
218HOWTO ( 1, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,0,"16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
219HOWTO ( 2, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"32", TRUE, 0xffffffff,0xffffffff, FALSE),
220HOWTO ( 3, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,0,"64", TRUE, 0xdeaddead,0xdeaddead, FALSE),
221HOWTO ( 4, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0,"DISP8", TRUE, 0x000000ff,0x000000ff, FALSE),
222HOWTO ( 5, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0,"DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
223HOWTO ( 6, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0,"DISP32", TRUE, 0xffffffff,0xffffffff, FALSE),
224HOWTO ( 7, 0, 4, 64, TRUE, 0, complain_overflow_signed, 0,"DISP64", TRUE, 0xfeedface,0xfeedface, FALSE),
225HOWTO ( 8, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"GOT_REL", FALSE, 0,0x00000000, FALSE),
226HOWTO ( 9, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,0,"BASE16", FALSE,0xffffffff,0xffffffff, FALSE),
227HOWTO (10, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"BASE32", FALSE,0xffffffff,0xffffffff, FALSE),
5f771d47
ILT		 228EMPTY_HOWTO (-1),
229EMPTY_HOWTO (-1),
230EMPTY_HOWTO (-1),
231EMPTY_HOWTO (-1),
232EMPTY_HOWTO (-1),
b34976b6 233 HOWTO (16, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"JMP_TABLE", FALSE, 0,0x00000000, FALSE),
5f771d47
ILT		 234EMPTY_HOWTO (-1),
235EMPTY_HOWTO (-1),
236EMPTY_HOWTO (-1),
237EMPTY_HOWTO (-1),
238EMPTY_HOWTO (-1),
239EMPTY_HOWTO (-1),
240EMPTY_HOWTO (-1),
241EMPTY_HOWTO (-1),
242EMPTY_HOWTO (-1),
243EMPTY_HOWTO (-1),
244EMPTY_HOWTO (-1),
245EMPTY_HOWTO (-1),
246EMPTY_HOWTO (-1),
247EMPTY_HOWTO (-1),
248EMPTY_HOWTO (-1),
b34976b6 249 HOWTO (32, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"RELATIVE", FALSE, 0,0x00000000, FALSE),
5f771d47
ILT		 250EMPTY_HOWTO (-1),
251EMPTY_HOWTO (-1),
252EMPTY_HOWTO (-1),
253EMPTY_HOWTO (-1),
254EMPTY_HOWTO (-1),
255EMPTY_HOWTO (-1),
256EMPTY_HOWTO (-1),
b34976b6 257 HOWTO (40, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"BASEREL", FALSE, 0,0x00000000, FALSE),
252b5132
RH		 258};
259
923f08ff 260#define TABLE_SIZE(TABLE) (sizeof (TABLE) / sizeof (TABLE[0]))
252b5132
RH		 261
262reloc_howto_type *
116c20d2 263NAME (aout, reloc_type_lookup) (bfd *abfd, bfd_reloc_code_real_type code)
252b5132 264{
116c20d2
NC		 265#define EXT(i, j) case i: return & howto_table_ext [j]
266#define STD(i, j) case i: return & howto_table_std [j]
252b5132 267 int ext = obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE;
f7c33884 268
252b5132 269 if (code == BFD_RELOC_CTOR)
30d10e9e 270 switch (bfd_arch_bits_per_address (abfd))
252b5132
RH		 271 {
272 case 32:
273 code = BFD_RELOC_32;
274 break;
275 case 64:
276 code = BFD_RELOC_64;
277 break;
278 }
f7c33884 279
252b5132
RH		 280 if (ext)
281 switch (code)
282 {
1642229e
HPN		 283 EXT (BFD_RELOC_8, 0);
284 EXT (BFD_RELOC_16, 1);
252b5132
RH		 285 EXT (BFD_RELOC_32, 2);
286 EXT (BFD_RELOC_HI22, 8);
287 EXT (BFD_RELOC_LO10, 11);
288 EXT (BFD_RELOC_32_PCREL_S2, 6);
289 EXT (BFD_RELOC_SPARC_WDISP22, 7);
290 EXT (BFD_RELOC_SPARC13, 10);
291 EXT (BFD_RELOC_SPARC_GOT10, 14);
292 EXT (BFD_RELOC_SPARC_BASE13, 15);
293 EXT (BFD_RELOC_SPARC_GOT13, 15);
294 EXT (BFD_RELOC_SPARC_GOT22, 16);
295 EXT (BFD_RELOC_SPARC_PC10, 17);
296 EXT (BFD_RELOC_SPARC_PC22, 18);
297 EXT (BFD_RELOC_SPARC_WPLT30, 19);
298 EXT (BFD_RELOC_SPARC_REV32, 26);
116c20d2
NC		 299 default:
300 return NULL;
252b5132
RH		 301 }
302 else
f7c33884 303 /* std relocs. */
252b5132
RH		 304 switch (code)
305 {
2846975a 306 STD (BFD_RELOC_8, 0);
252b5132
RH		 307 STD (BFD_RELOC_16, 1);
308 STD (BFD_RELOC_32, 2);
309 STD (BFD_RELOC_8_PCREL, 4);
310 STD (BFD_RELOC_16_PCREL, 5);
311 STD (BFD_RELOC_32_PCREL, 6);
312 STD (BFD_RELOC_16_BASEREL, 9);
313 STD (BFD_RELOC_32_BASEREL, 10);
116c20d2
NC		 314 default:
315 return NULL;
252b5132
RH		 316 }
317}
318
157090f7
AM		 319reloc_howto_type *
320NAME (aout, reloc_name_lookup) (bfd *abfd, const char *r_name)
321{
322 unsigned int i, size;
323 reloc_howto_type *howto_table;
324
325 if (obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE)
326 {
327 howto_table = howto_table_ext;
328 size = sizeof (howto_table_ext) / sizeof (howto_table_ext[0]);
329 }
330 else
331 {
332 howto_table = howto_table_std;
333 size = sizeof (howto_table_std) / sizeof (howto_table_std[0]);
334 }
335
336 for (i = 0; i < size; i++)
337 if (howto_table[i].name != NULL
338 && strcasecmp (howto_table[i].name, r_name) == 0)
339 return &howto_table[i];
340
341 return NULL;
342}
343
252b5132
RH		 344/*
345SUBSECTION
346 Internal entry points
347
348DESCRIPTION
349 @file{aoutx.h} exports several routines for accessing the
350 contents of an a.out file, which are gathered and exported in
351 turn by various format specific files (eg sunos.c).
252b5132
RH		 352*/
353
354/*
355FUNCTION
356 aout_@var{size}_swap_exec_header_in
357
358SYNOPSIS
359 void aout_@var{size}_swap_exec_header_in,
360 (bfd *abfd,
116c20d2 361 struct external_exec *bytes,
252b5132
RH		 362 struct internal_exec *execp);
363
364DESCRIPTION
365 Swap the information in an executable header @var{raw_bytes} taken
366 from a raw byte stream memory image into the internal exec header
367 structure @var{execp}.
368*/
369
370#ifndef NAME_swap_exec_header_in
371void
116c20d2
NC		 372NAME (aout, swap_exec_header_in) (bfd *abfd,
373 struct external_exec *bytes,
374 struct internal_exec *execp)
252b5132 375{
252b5132
RH		 376 /* The internal_exec structure has some fields that are unused in this
377 configuration (IE for i960), so ensure that all such uninitialized
378 fields are zero'd out. There are places where two of these structs
0ef5a5bd 379 are memcmp'd, and thus the contents do matter. */
116c20d2 380 memset ((void *) execp, 0, sizeof (struct internal_exec));
252b5132 381 /* Now fill in fields in the execp, from the bytes in the raw data. */
dc810e39 382 execp->a_info = H_GET_32 (abfd, bytes->e_info);
252b5132
RH		 383 execp->a_text = GET_WORD (abfd, bytes->e_text);
384 execp->a_data = GET_WORD (abfd, bytes->e_data);
385 execp->a_bss = GET_WORD (abfd, bytes->e_bss);
386 execp->a_syms = GET_WORD (abfd, bytes->e_syms);
387 execp->a_entry = GET_WORD (abfd, bytes->e_entry);
388 execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
389 execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
390}
116c20d2 391#define NAME_swap_exec_header_in NAME (aout, swap_exec_header_in)
252b5132
RH		 392#endif
393
394/*
395FUNCTION
396 aout_@var{size}_swap_exec_header_out
397
398SYNOPSIS
399 void aout_@var{size}_swap_exec_header_out
400 (bfd *abfd,
401 struct internal_exec *execp,
402 struct external_exec *raw_bytes);
403
404DESCRIPTION
405 Swap the information in an internal exec header structure
406 @var{execp} into the buffer @var{raw_bytes} ready for writing to disk.
407*/
408void
116c20d2
NC		 409NAME (aout, swap_exec_header_out) (bfd *abfd,
410 struct internal_exec *execp,
411 struct external_exec *bytes)
252b5132 412{
0ef5a5bd 413 /* Now fill in fields in the raw data, from the fields in the exec struct. */
dc810e39 414 H_PUT_32 (abfd, execp->a_info , bytes->e_info);
252b5132
RH		 415 PUT_WORD (abfd, execp->a_text , bytes->e_text);
416 PUT_WORD (abfd, execp->a_data , bytes->e_data);
417 PUT_WORD (abfd, execp->a_bss , bytes->e_bss);
418 PUT_WORD (abfd, execp->a_syms , bytes->e_syms);
419 PUT_WORD (abfd, execp->a_entry , bytes->e_entry);
420 PUT_WORD (abfd, execp->a_trsize, bytes->e_trsize);
421 PUT_WORD (abfd, execp->a_drsize, bytes->e_drsize);
422}
423
424/* Make all the section for an a.out file. */
425
b34976b6 426bfd_boolean
116c20d2 427NAME (aout, make_sections) (bfd *abfd)
252b5132 428{
116c20d2 429 if (obj_textsec (abfd) == NULL && bfd_make_section (abfd, ".text") == NULL)
b34976b6 430 return FALSE;
116c20d2 431 if (obj_datasec (abfd) == NULL && bfd_make_section (abfd, ".data") == NULL)
b34976b6 432 return FALSE;
116c20d2 433 if (obj_bsssec (abfd) == NULL && bfd_make_section (abfd, ".bss") == NULL)
b34976b6
AM		 434 return FALSE;
435 return TRUE;
252b5132
RH		 436}
437
438/*
439FUNCTION
440 aout_@var{size}_some_aout_object_p
441
442SYNOPSIS
443 const bfd_target *aout_@var{size}_some_aout_object_p
444 (bfd *abfd,
116c20d2
NC		 445 struct internal_exec *execp,
446 const bfd_target *(*callback_to_real_object_p) (bfd *));
252b5132
RH		 447
448DESCRIPTION
449 Some a.out variant thinks that the file open in @var{abfd}
450 checking is an a.out file. Do some more checking, and set up
451 for access if it really is. Call back to the calling
452 environment's "finish up" function just before returning, to
453 handle any last-minute setup.
454*/
455
456const bfd_target *
116c20d2
NC		 457NAME (aout, some_aout_object_p) (bfd *abfd,
458 struct internal_exec *execp,
459 const bfd_target *(*callback_to_real_object_p) (bfd *))
252b5132
RH		 460{
461 struct aout_data_struct *rawptr, *oldrawptr;
462 const bfd_target *result;
116c20d2 463 bfd_size_type amt = sizeof (* rawptr);
252b5132 464
a50b1753 465 rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
252b5132 466 if (rawptr == NULL)
116c20d2 467 return NULL;
252b5132
RH		 468
469 oldrawptr = abfd->tdata.aout_data;
470 abfd->tdata.aout_data = rawptr;
471
472 /* Copy the contents of the old tdata struct.
473 In particular, we want the subformat, since for hpux it was set in
474 hp300hpux.c:swap_exec_header_in and will be used in
475 hp300hpux.c:callback. */
476 if (oldrawptr != NULL)
477 *abfd->tdata.aout_data = *oldrawptr;
478
479 abfd->tdata.aout_data->a.hdr = &rawptr->e;
f7c33884
NC		 480 /* Copy in the internal_exec struct. */
481 *(abfd->tdata.aout_data->a.hdr) = *execp;
252b5132
RH		 482 execp = abfd->tdata.aout_data->a.hdr;
483
f7c33884 484 /* Set the file flags. */
252b5132
RH		 485 abfd->flags = BFD_NO_FLAGS;
486 if (execp->a_drsize || execp->a_trsize)
487 abfd->flags |= HAS_RELOC;
f7c33884 488 /* Setting of EXEC_P has been deferred to the bottom of this function. */
252b5132
RH		 489 if (execp->a_syms)
490 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
bbb1afc8 491 if (N_DYNAMIC (execp))
252b5132
RH		 492 abfd->flags |= DYNAMIC;
493
bbb1afc8 494 if (N_MAGIC (execp) == ZMAGIC)
252b5132
RH		 495 {
496 abfd->flags |= D_PAGED | WP_TEXT;
497 adata (abfd).magic = z_magic;
498 }
bbb1afc8 499 else if (N_MAGIC (execp) == QMAGIC)
252b5132
RH		 500 {
501 abfd->flags |= D_PAGED | WP_TEXT;
502 adata (abfd).magic = z_magic;
503 adata (abfd).subformat = q_magic_format;
504 }
bbb1afc8 505 else if (N_MAGIC (execp) == NMAGIC)
252b5132
RH		 506 {
507 abfd->flags |= WP_TEXT;
508 adata (abfd).magic = n_magic;
509 }
bbb1afc8
AM		 510 else if (N_MAGIC (execp) == OMAGIC
511 || N_MAGIC (execp) == BMAGIC)
252b5132
RH		 512 adata (abfd).magic = o_magic;
513 else
116c20d2
NC		 514 /* Should have been checked with N_BADMAG before this routine
515 was called. */
516 abort ();
252b5132
RH		 517
518 bfd_get_start_address (abfd) = execp->a_entry;
519
116c20d2 520 obj_aout_symbols (abfd) = NULL;
252b5132
RH		 521 bfd_get_symcount (abfd) = execp->a_syms / sizeof (struct external_nlist);
522
523 /* The default relocation entry size is that of traditional V7 Unix. */
524 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
525
0ef5a5bd 526 /* The default symbol entry size is that of traditional Unix. */
252b5132
RH		 527 obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE;
528
529#ifdef USE_MMAP
530 bfd_init_window (&obj_aout_sym_window (abfd));
531 bfd_init_window (&obj_aout_string_window (abfd));
532#endif
533 obj_aout_external_syms (abfd) = NULL;
534 obj_aout_external_strings (abfd) = NULL;
535 obj_aout_sym_hashes (abfd) = NULL;
536
116c20d2 537 if (! NAME (aout, make_sections) (abfd))
487e54f2 538 goto error_ret;
252b5132 539
eea6121a
AM		 540 obj_datasec (abfd)->size = execp->a_data;
541 obj_bsssec (abfd)->size = execp->a_bss;
252b5132
RH		 542
543 obj_textsec (abfd)->flags =
544 (execp->a_trsize != 0
545 ? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC)
546 : (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS));
547 obj_datasec (abfd)->flags =
548 (execp->a_drsize != 0
549 ? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC)
550 : (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS));
551 obj_bsssec (abfd)->flags = SEC_ALLOC;
552
553#ifdef THIS_IS_ONLY_DOCUMENTATION
554 /* The common code can't fill in these things because they depend
555 on either the start address of the text segment, the rounding
556 up of virtual addresses between segments, or the starting file
557 position of the text segment -- all of which varies among different
558 versions of a.out. */
559
560 /* Call back to the format-dependent code to fill in the rest of the
561 fields and do any further cleanup. Things that should be filled
562 in by the callback: */
563
564 struct exec *execp = exec_hdr (abfd);
565
bbb1afc8 566 obj_textsec (abfd)->size = N_TXTSIZE (execp);
f7c33884 567 /* Data and bss are already filled in since they're so standard. */
252b5132 568
f7c33884 569 /* The virtual memory addresses of the sections. */
bbb1afc8
AM		 570 obj_textsec (abfd)->vma = N_TXTADDR (execp);
571 obj_datasec (abfd)->vma = N_DATADDR (execp);
572 obj_bsssec (abfd)->vma = N_BSSADDR (execp);
252b5132 573
f7c33884 574 /* The file offsets of the sections. */
bbb1afc8
AM		 575 obj_textsec (abfd)->filepos = N_TXTOFF (execp);
576 obj_datasec (abfd)->filepos = N_DATOFF (execp);
252b5132 577
f7c33884 578 /* The file offsets of the relocation info. */
bbb1afc8
AM		 579 obj_textsec (abfd)->rel_filepos = N_TRELOFF (execp);
580 obj_datasec (abfd)->rel_filepos = N_DRELOFF (execp);
252b5132
RH		 581
582 /* The file offsets of the string table and symbol table. */
bbb1afc8
AM		 583 obj_str_filepos (abfd) = N_STROFF (execp);
584 obj_sym_filepos (abfd) = N_SYMOFF (execp);
252b5132
RH		 585
586 /* Determine the architecture and machine type of the object file. */
bbb1afc8 587 switch (N_MACHTYPE (exec_hdr (abfd)))
923f08ff
AM		 588 {
589 default:
590 abfd->obj_arch = bfd_arch_obscure;
591 break;
592 }
252b5132 593
923f08ff
AM		 594 adata (abfd)->page_size = TARGET_PAGE_SIZE;
595 adata (abfd)->segment_size = SEGMENT_SIZE;
596 adata (abfd)->exec_bytes_size = EXEC_BYTES_SIZE;
252b5132
RH		 597
598 return abfd->xvec;
599
600 /* The architecture is encoded in various ways in various a.out variants,
601 or is not encoded at all in some of them. The relocation size depends
602 on the architecture and the a.out variant. Finally, the return value
603 is the bfd_target vector in use. If an error occurs, return zero and
604 set bfd_error to the appropriate error code.
605
606 Formats such as b.out, which have additional fields in the a.out
607 header, should cope with them in this callback as well. */
608#endif /* DOCUMENTATION */
609
beb0d161 610 result = (*callback_to_real_object_p) (abfd);
252b5132
RH		 611
612 /* Now that the segment addresses have been worked out, take a better
613 guess at whether the file is executable. If the entry point
614 is within the text segment, assume it is. (This makes files
615 executable even if their entry point address is 0, as long as
616 their text starts at zero.).
617
618 This test had to be changed to deal with systems where the text segment
619 runs at a different location than the default. The problem is that the
620 entry address can appear to be outside the text segment, thus causing an
621 erroneous conclusion that the file isn't executable.
622
623 To fix this, we now accept any non-zero entry point as an indication of
624 executability. This will work most of the time, since only the linker
0ef5a5bd 625 sets the entry point, and that is likely to be non-zero for most systems. */
252b5132
RH		 626
627 if (execp->a_entry != 0
923f08ff
AM		 628 || (execp->a_entry >= obj_textsec (abfd)->vma
629 && execp->a_entry < (obj_textsec (abfd)->vma
4c1534c7
AM		 630 + obj_textsec (abfd)->size)
631 && execp->a_trsize == 0
632 && execp->a_drsize == 0))
252b5132
RH		 633 abfd->flags |= EXEC_P;
634#ifdef STAT_FOR_EXEC
635 else
636 {
637 struct stat stat_buf;
638
639 /* The original heuristic doesn't work in some important cases.
640 The a.out file has no information about the text start
641 address. For files (like kernels) linked to non-standard
642 addresses (ld -Ttext nnn) the entry point may not be between
643 the default text start (obj_textsec(abfd)->vma) and
644 (obj_textsec(abfd)->vma) + text size. This is not just a mach
645 issue. Many kernels are loaded at non standard addresses. */
646 if (abfd->iostream != NULL
647 && (abfd->flags & BFD_IN_MEMORY) == 0
923f08ff 648 && (fstat (fileno ((FILE *) (abfd->iostream)), &stat_buf) == 0)
252b5132
RH		 649 && ((stat_buf.st_mode & 0111) != 0))
650 abfd->flags |= EXEC_P;
651 }
652#endif /* STAT_FOR_EXEC */
653
654 if (result)
0e71e495 655 return result;
487e54f2
AM		 656
657 error_ret:
658 bfd_release (abfd, rawptr);
659 abfd->tdata.aout_data = oldrawptr;
660 return NULL;
252b5132
RH		 661}
662
663/*
664FUNCTION
665 aout_@var{size}_mkobject
666
667SYNOPSIS
b34976b6 668 bfd_boolean aout_@var{size}_mkobject, (bfd *abfd);
252b5132
RH		 669
670DESCRIPTION
671 Initialize BFD @var{abfd} for use with a.out files.
672*/
673
b34976b6 674bfd_boolean
116c20d2 675NAME (aout, mkobject) (bfd *abfd)
252b5132 676{
dc810e39 677 struct aout_data_struct *rawptr;
116c20d2 678 bfd_size_type amt = sizeof (* rawptr);
252b5132
RH		 679
680 bfd_set_error (bfd_error_system_call);
681
a50b1753 682 rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
252b5132 683 if (rawptr == NULL)
b34976b6 684 return FALSE;
252b5132
RH		 685
686 abfd->tdata.aout_data = rawptr;
687 exec_hdr (abfd) = &(rawptr->e);
688
116c20d2
NC		 689 obj_textsec (abfd) = NULL;
690 obj_datasec (abfd) = NULL;
691 obj_bsssec (abfd) = NULL;
252b5132 692
b34976b6 693 return TRUE;
252b5132
RH		 694}
695
252b5132
RH		 696/*
697FUNCTION
698 aout_@var{size}_machine_type
699
700SYNOPSIS
701 enum machine_type aout_@var{size}_machine_type
702 (enum bfd_architecture arch,
116c20d2
NC		 703 unsigned long machine,
704 bfd_boolean *unknown);
252b5132
RH		 705
706DESCRIPTION
707 Keep track of machine architecture and machine type for
708 a.out's. Return the <<machine_type>> for a particular
709 architecture and machine, or <<M_UNKNOWN>> if that exact architecture
710 and machine can't be represented in a.out format.
711
712 If the architecture is understood, machine type 0 (default)
713 is always understood.
714*/
715
716enum machine_type
116c20d2
NC		 717NAME (aout, machine_type) (enum bfd_architecture arch,
718 unsigned long machine,
719 bfd_boolean *unknown)
252b5132
RH		 720{
721 enum machine_type arch_flags;
722
723 arch_flags = M_UNKNOWN;
b34976b6 724 *unknown = TRUE;
252b5132 725
923f08ff
AM		 726 switch (arch)
727 {
728 case bfd_arch_sparc:
729 if (machine == 0
730 || machine == bfd_mach_sparc
731 || machine == bfd_mach_sparc_sparclite
732 || machine == bfd_mach_sparc_sparclite_le
74d26813
L		 733 || machine == bfd_mach_sparc_v8plus
734 || machine == bfd_mach_sparc_v8plusa
735 || machine == bfd_mach_sparc_v8plusb
4f26fb3a
JM		 736 || machine == bfd_mach_sparc_v8plusc
737 || machine == bfd_mach_sparc_v8plusd
738 || machine == bfd_mach_sparc_v8pluse
739 || machine == bfd_mach_sparc_v8plusv
740 || machine == bfd_mach_sparc_v8plusm
74d26813
L		 741 || machine == bfd_mach_sparc_v9
742 || machine == bfd_mach_sparc_v9a
4f26fb3a
JM		 743 || machine == bfd_mach_sparc_v9b
744 || machine == bfd_mach_sparc_v9c
745 || machine == bfd_mach_sparc_v9d
746 || machine == bfd_mach_sparc_v9e
747 || machine == bfd_mach_sparc_v9v
748 || machine == bfd_mach_sparc_v9m)
923f08ff
AM		 749 arch_flags = M_SPARC;
750 else if (machine == bfd_mach_sparc_sparclet)
751 arch_flags = M_SPARCLET;
752 break;
753
754 case bfd_arch_m68k:
755 switch (machine)
756 {
757 case 0: arch_flags = M_68010; break;
b34976b6 758 case bfd_mach_m68000: arch_flags = M_UNKNOWN; *unknown = FALSE; break;
923f08ff
AM		 759 case bfd_mach_m68010: arch_flags = M_68010; break;
760 case bfd_mach_m68020: arch_flags = M_68020; break;
761 default: arch_flags = M_UNKNOWN; break;
762 }
252b5132 763 break;
923f08ff
AM		 764
765 case bfd_arch_i386:
3b77b1d5
AM		 766 if (machine == 0
767 || machine == bfd_mach_i386_i386
768 || machine == bfd_mach_i386_i386_intel_syntax)
923f08ff 769 arch_flags = M_386;
252b5132 770 break;
923f08ff 771
923f08ff
AM		 772 case bfd_arch_arm:
773 if (machine == 0)
774 arch_flags = M_ARM;
252b5132 775 break;
252b5132 776
923f08ff
AM		 777 case bfd_arch_mips:
778 switch (machine)
779 {
780 case 0:
781 case bfd_mach_mips3000:
782 case bfd_mach_mips3900:
783 arch_flags = M_MIPS1;
784 break;
785 case bfd_mach_mips6000:
786 arch_flags = M_MIPS2;
787 break;
788 case bfd_mach_mips4000:
789 case bfd_mach_mips4010:
790 case bfd_mach_mips4100:
791 case bfd_mach_mips4300:
792 case bfd_mach_mips4400:
793 case bfd_mach_mips4600:
794 case bfd_mach_mips4650:
795 case bfd_mach_mips8000:
0d2e43ed 796 case bfd_mach_mips9000:
923f08ff
AM		 797 case bfd_mach_mips10000:
798 case bfd_mach_mips12000:
3aa3176b
TS		 799 case bfd_mach_mips14000:
800 case bfd_mach_mips16000:
923f08ff
AM		 801 case bfd_mach_mips16:
802 case bfd_mach_mipsisa32:
af7ee8bf 803 case bfd_mach_mipsisa32r2:
ae52f483
AB		 804 case bfd_mach_mipsisa32r3:
805 case bfd_mach_mipsisa32r5:
7361da2c 806 case bfd_mach_mipsisa32r6:
923f08ff
AM		 807 case bfd_mach_mips5:
808 case bfd_mach_mipsisa64:
5f74bc13 809 case bfd_mach_mipsisa64r2:
ae52f483
AB		 810 case bfd_mach_mipsisa64r3:
811 case bfd_mach_mipsisa64r5:
7361da2c 812 case bfd_mach_mipsisa64r6:
923f08ff 813 case bfd_mach_mips_sb1:
52b6b6b9 814 case bfd_mach_mips_xlr:
923f08ff
AM		 815 /* FIXME: These should be MIPS3, MIPS4, MIPS16, MIPS32, etc. */
816 arch_flags = M_MIPS2;
817 break;
818 default:
819 arch_flags = M_UNKNOWN;
820 break;
821 }
822 break;
823
824 case bfd_arch_ns32k:
825 switch (machine)
826 {
827 case 0: arch_flags = M_NS32532; break;
828 case 32032: arch_flags = M_NS32032; break;
829 case 32532: arch_flags = M_NS32532; break;
830 default: arch_flags = M_UNKNOWN; break;
831 }
832 break;
252b5132 833
923f08ff 834 case bfd_arch_vax:
b34976b6 835 *unknown = FALSE;
923f08ff 836 break;
06c15ad7 837
923f08ff
AM		 838 case bfd_arch_cris:
839 if (machine == 0 || machine == 255)
840 arch_flags = M_CRIS;
841 break;
842
727e493d
MK		 843 case bfd_arch_m88k:
844 *unknown = FALSE;
845 break;
846
923f08ff
AM		 847 default:
848 arch_flags = M_UNKNOWN;
849 }
252b5132
RH		 850
851 if (arch_flags != M_UNKNOWN)
b34976b6 852 *unknown = FALSE;
252b5132
RH		 853
854 return arch_flags;
855}
856
252b5132
RH		 857/*
858FUNCTION
859 aout_@var{size}_set_arch_mach
860
861SYNOPSIS
b34976b6 862 bfd_boolean aout_@var{size}_set_arch_mach,
252b5132
RH		 863 (bfd *,
864 enum bfd_architecture arch,
116c20d2 865 unsigned long machine);
252b5132
RH		 866
867DESCRIPTION
868 Set the architecture and the machine of the BFD @var{abfd} to the
869 values @var{arch} and @var{machine}. Verify that @var{abfd}'s format
870 can support the architecture required.
871*/
872
b34976b6 873bfd_boolean
116c20d2
NC		 874NAME (aout, set_arch_mach) (bfd *abfd,
875 enum bfd_architecture arch,
876 unsigned long machine)
252b5132
RH		 877{
878 if (! bfd_default_set_arch_mach (abfd, arch, machine))
b34976b6 879 return FALSE;
252b5132
RH		 880
881 if (arch != bfd_arch_unknown)
882 {
b34976b6 883 bfd_boolean unknown;
252b5132 884
116c20d2 885 NAME (aout, machine_type) (arch, machine, &unknown);
252b5132 886 if (unknown)
b34976b6 887 return FALSE;
252b5132
RH		 888 }
889
f7c33884 890 /* Determine the size of a relocation entry. */
923f08ff
AM		 891 switch (arch)
892 {
893 case bfd_arch_sparc:
923f08ff
AM		 894 case bfd_arch_mips:
895 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
896 break;
897 default:
898 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
899 break;
900 }
252b5132 901
923f08ff 902 return (*aout_backend_info (abfd)->set_sizes) (abfd);
252b5132
RH		 903}
904
905static void
116c20d2 906adjust_o_magic (bfd *abfd, struct internal_exec *execp)
252b5132
RH		 907{
908 file_ptr pos = adata (abfd).exec_bytes_size;
909 bfd_vma vma = 0;
910 int pad = 0;
911
912 /* Text. */
923f08ff
AM		 913 obj_textsec (abfd)->filepos = pos;
914 if (!obj_textsec (abfd)->user_set_vma)
915 obj_textsec (abfd)->vma = vma;
252b5132 916 else
923f08ff 917 vma = obj_textsec (abfd)->vma;
252b5132 918
eea6121a
AM		 919 pos += obj_textsec (abfd)->size;
920 vma += obj_textsec (abfd)->size;
252b5132
RH		 921
922 /* Data. */
923f08ff 923 if (!obj_datasec (abfd)->user_set_vma)
252b5132 924 {
eea6121a 925 obj_textsec (abfd)->size += pad;
252b5132
RH		 926 pos += pad;
927 vma += pad;
923f08ff 928 obj_datasec (abfd)->vma = vma;
252b5132
RH		 929 }
930 else
923f08ff
AM		 931 vma = obj_datasec (abfd)->vma;
932 obj_datasec (abfd)->filepos = pos;
eea6121a
AM		 933 pos += obj_datasec (abfd)->size;
934 vma += obj_datasec (abfd)->size;
252b5132
RH		 935
936 /* BSS. */
923f08ff 937 if (!obj_bsssec (abfd)->user_set_vma)
252b5132 938 {
eea6121a 939 obj_datasec (abfd)->size += pad;
252b5132
RH		 940 pos += pad;
941 vma += pad;
923f08ff 942 obj_bsssec (abfd)->vma = vma;
252b5132
RH		 943 }
944 else
945 {
08da05b0 946 /* The VMA of the .bss section is set by the VMA of the
252b5132
RH		 947 .data section plus the size of the .data section. We may
948 need to add padding bytes to make this true. */
949 pad = obj_bsssec (abfd)->vma - vma;
950 if (pad > 0)
951 {
eea6121a 952 obj_datasec (abfd)->size += pad;
252b5132
RH		 953 pos += pad;
954 }
955 }
923f08ff 956 obj_bsssec (abfd)->filepos = pos;
252b5132
RH		 957
958 /* Fix up the exec header. */
eea6121a
AM		 959 execp->a_text = obj_textsec (abfd)->size;
960 execp->a_data = obj_datasec (abfd)->size;
961 execp->a_bss = obj_bsssec (abfd)->size;
bbb1afc8 962 N_SET_MAGIC (execp, OMAGIC);
252b5132
RH		 963}
964
965static void
116c20d2 966adjust_z_magic (bfd *abfd, struct internal_exec *execp)
252b5132
RH		 967{
968 bfd_size_type data_pad, text_pad;
969 file_ptr text_end;
dc810e39 970 const struct aout_backend_data *abdp;
116c20d2
NC		 971 /* TRUE if text includes exec header. */
972 bfd_boolean ztih;
0ef5a5bd 973
252b5132
RH		 974 abdp = aout_backend_info (abfd);
975
976 /* Text. */
977 ztih = (abdp != NULL
978 && (abdp->text_includes_header
979 || obj_aout_subformat (abfd) == q_magic_format));
923f08ff
AM		 980 obj_textsec (abfd)->filepos = (ztih
981 ? adata (abfd).exec_bytes_size
982 : adata (abfd).zmagic_disk_block_size);
983 if (! obj_textsec (abfd)->user_set_vma)
252b5132
RH		 984 {
985 /* ?? Do we really need to check for relocs here? */
923f08ff
AM		 986 obj_textsec (abfd)->vma = ((abfd->flags & HAS_RELOC)
987 ? 0
988 : (ztih
989 ? (abdp->default_text_vma
990 + adata (abfd).exec_bytes_size)
991 : abdp->default_text_vma));
252b5132
RH		 992 text_pad = 0;
993 }
994 else
995 {
996 /* The .text section is being loaded at an unusual address. We
997 may need to pad it such that the .data section starts at a page
998 boundary. */
999 if (ztih)
1000 text_pad = ((obj_textsec (abfd)->filepos - obj_textsec (abfd)->vma)
1001 & (adata (abfd).page_size - 1));
1002 else
1003 text_pad = ((- obj_textsec (abfd)->vma)
1004 & (adata (abfd).page_size - 1));
1005 }
1006
1007 /* Find start of data. */
1008 if (ztih)
1009 {
eea6121a 1010 text_end = obj_textsec (abfd)->filepos + obj_textsec (abfd)->size;
252b5132
RH		 1011 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
1012 }
1013 else
1014 {
1015 /* Note that if page_size == zmagic_disk_block_size, then
1016 filepos == page_size, and this case is the same as the ztih
1017 case. */
eea6121a 1018 text_end = obj_textsec (abfd)->size;
252b5132
RH		 1019 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
1020 text_end += obj_textsec (abfd)->filepos;
1021 }
eea6121a 1022 obj_textsec (abfd)->size += text_pad;
252b5132
RH		 1023 text_end += text_pad;
1024
1025 /* Data. */
923f08ff 1026 if (!obj_datasec (abfd)->user_set_vma)
252b5132
RH		 1027 {
1028 bfd_vma vma;
eea6121a 1029 vma = obj_textsec (abfd)->vma + obj_textsec (abfd)->size;
923f08ff 1030 obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
252b5132
RH		 1031 }
1032 if (abdp && abdp->zmagic_mapped_contiguous)
1033 {
dee0a8f4
NC		 1034 asection * text = obj_textsec (abfd);
1035 asection * data = obj_datasec (abfd);
1036
eea6121a 1037 text_pad = data->vma - (text->vma + text->size);
dee0a8f4
NC		 1038 /* Only pad the text section if the data
1039 section is going to be placed after it. */
1040 if (text_pad > 0)
eea6121a 1041 text->size += text_pad;
252b5132 1042 }
923f08ff 1043 obj_datasec (abfd)->filepos = (obj_textsec (abfd)->filepos
eea6121a 1044 + obj_textsec (abfd)->size);
0ef5a5bd 1045
252b5132 1046 /* Fix up exec header while we're at it. */
eea6121a 1047 execp->a_text = obj_textsec (abfd)->size;
252b5132 1048 if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted)))
923f08ff 1049 execp->a_text += adata (abfd).exec_bytes_size;
252b5132 1050 if (obj_aout_subformat (abfd) == q_magic_format)
bbb1afc8 1051 N_SET_MAGIC (execp, QMAGIC);
252b5132 1052 else
bbb1afc8 1053 N_SET_MAGIC (execp, ZMAGIC);
252b5132
RH		 1054
1055 /* Spec says data section should be rounded up to page boundary. */
eea6121a
AM		 1056 obj_datasec (abfd)->size
1057 = align_power (obj_datasec (abfd)->size,
923f08ff 1058 obj_bsssec (abfd)->alignment_power);
eea6121a 1059 execp->a_data = BFD_ALIGN (obj_datasec (abfd)->size,
923f08ff 1060 adata (abfd).page_size);
eea6121a 1061 data_pad = execp->a_data - obj_datasec (abfd)->size;
252b5132
RH		 1062
1063 /* BSS. */
923f08ff
AM		 1064 if (!obj_bsssec (abfd)->user_set_vma)
1065 obj_bsssec (abfd)->vma = (obj_datasec (abfd)->vma
eea6121a 1066 + obj_datasec (abfd)->size);
252b5132
RH		 1067 /* If the BSS immediately follows the data section and extra space
1068 in the page is left after the data section, fudge data
1069 in the header so that the bss section looks smaller by that
1070 amount. We'll start the bss section there, and lie to the OS.
1071 (Note that a linker script, as well as the above assignment,
1072 could have explicitly set the BSS vma to immediately follow
1073 the data section.) */
923f08ff 1074 if (align_power (obj_bsssec (abfd)->vma, obj_bsssec (abfd)->alignment_power)
eea6121a
AM		 1075 == obj_datasec (abfd)->vma + obj_datasec (abfd)->size)
1076 execp->a_bss = (data_pad > obj_bsssec (abfd)->size
1077 ? 0 : obj_bsssec (abfd)->size - data_pad);
252b5132 1078 else
eea6121a 1079 execp->a_bss = obj_bsssec (abfd)->size;
252b5132
RH		 1080}
1081
1082static void
116c20d2 1083adjust_n_magic (bfd *abfd, struct internal_exec *execp)
252b5132 1084{
923f08ff 1085 file_ptr pos = adata (abfd).exec_bytes_size;
252b5132
RH		 1086 bfd_vma vma = 0;
1087 int pad;
0ef5a5bd 1088
252b5132 1089 /* Text. */
923f08ff
AM		 1090 obj_textsec (abfd)->filepos = pos;
1091 if (!obj_textsec (abfd)->user_set_vma)
1092 obj_textsec (abfd)->vma = vma;
252b5132 1093 else
923f08ff 1094 vma = obj_textsec (abfd)->vma;
eea6121a
AM		 1095 pos += obj_textsec (abfd)->size;
1096 vma += obj_textsec (abfd)->size;
252b5132
RH		 1097
1098 /* Data. */
923f08ff
AM		 1099 obj_datasec (abfd)->filepos = pos;
1100 if (!obj_datasec (abfd)->user_set_vma)
1101 obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
1102 vma = obj_datasec (abfd)->vma;
0ef5a5bd 1103
252b5132 1104 /* Since BSS follows data immediately, see if it needs alignment. */
eea6121a 1105 vma += obj_datasec (abfd)->size;
923f08ff 1106 pad = align_power (vma, obj_bsssec (abfd)->alignment_power) - vma;
eea6121a
AM		 1107 obj_datasec (abfd)->size += pad;
1108 pos += obj_datasec (abfd)->size;
252b5132
RH		 1109
1110 /* BSS. */
923f08ff
AM		 1111 if (!obj_bsssec (abfd)->user_set_vma)
1112 obj_bsssec (abfd)->vma = vma;
252b5132 1113 else
923f08ff 1114 vma = obj_bsssec (abfd)->vma;
252b5132
RH		 1115
1116 /* Fix up exec header. */
eea6121a
AM		 1117 execp->a_text = obj_textsec (abfd)->size;
1118 execp->a_data = obj_datasec (abfd)->size;
1119 execp->a_bss = obj_bsssec (abfd)->size;
bbb1afc8 1120 N_SET_MAGIC (execp, NMAGIC);
252b5132
RH		 1121}
1122
b34976b6 1123bfd_boolean
3a8c4a5b 1124NAME (aout, adjust_sizes_and_vmas) (bfd *abfd)
252b5132
RH		 1125{
1126 struct internal_exec *execp = exec_hdr (abfd);
1127
116c20d2 1128 if (! NAME (aout, make_sections) (abfd))
b34976b6 1129 return FALSE;
252b5132 1130
923f08ff 1131 if (adata (abfd).magic != undecided_magic)
b34976b6 1132 return TRUE;
252b5132 1133
eea6121a
AM		 1134 obj_textsec (abfd)->size =
1135 align_power (obj_textsec (abfd)->size,
923f08ff 1136 obj_textsec (abfd)->alignment_power);
252b5132 1137
252b5132
RH		 1138 /* Rule (heuristic) for when to pad to a new page. Note that there
1139 are (at least) two ways demand-paged (ZMAGIC) files have been
1140 handled. Most Berkeley-based systems start the text segment at
1141 (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text
1142 segment right after the exec header; the latter is counted in the
1143 text segment size, and is paged in by the kernel with the rest of
0ef5a5bd 1144 the text. */
252b5132
RH		 1145
1146 /* This perhaps isn't the right way to do this, but made it simpler for me
1147 to understand enough to implement it. Better would probably be to go
1148 right from BFD flags to alignment/positioning characteristics. But the
1149 old code was sloppy enough about handling the flags, and had enough
1150 other magic, that it was a little hard for me to understand. I think
1151 I understand it better now, but I haven't time to do the cleanup this
1152 minute. */
1153
1154 if (abfd->flags & D_PAGED)
1155 /* Whether or not WP_TEXT is set -- let D_PAGED override. */
923f08ff 1156 adata (abfd).magic = z_magic;
252b5132 1157 else if (abfd->flags & WP_TEXT)
923f08ff 1158 adata (abfd).magic = n_magic;
252b5132 1159 else
923f08ff 1160 adata (abfd).magic = o_magic;
252b5132
RH		 1161
1162#ifdef BFD_AOUT_DEBUG /* requires gcc2 */
1163#if __GNUC__ >= 2
1164 fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n",
1165 ({ char *str;
923f08ff
AM		 1166 switch (adata (abfd).magic)
1167 {
1168 case n_magic: str = "NMAGIC"; break;
1169 case o_magic: str = "OMAGIC"; break;
1170 case z_magic: str = "ZMAGIC"; break;
1171 default: abort ();
1172 }
252b5132
RH		 1173 str;
1174 }),
eea6121a 1175 obj_textsec (abfd)->vma, obj_textsec (abfd)->size,
923f08ff 1176 obj_textsec (abfd)->alignment_power,
eea6121a 1177 obj_datasec (abfd)->vma, obj_datasec (abfd)->size,
923f08ff 1178 obj_datasec (abfd)->alignment_power,
eea6121a 1179 obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size,
923f08ff 1180 obj_bsssec (abfd)->alignment_power);
252b5132
RH		 1181#endif
1182#endif
1183
923f08ff 1184 switch (adata (abfd).magic)
252b5132
RH		 1185 {
1186 case o_magic:
1187 adjust_o_magic (abfd, execp);
1188 break;
1189 case z_magic:
1190 adjust_z_magic (abfd, execp);
1191 break;
1192 case n_magic:
1193 adjust_n_magic (abfd, execp);
1194 break;
1195 default:
1196 abort ();
1197 }
1198
1199#ifdef BFD_AOUT_DEBUG
1200 fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n",
eea6121a 1201 obj_textsec (abfd)->vma, obj_textsec (abfd)->size,
923f08ff 1202 obj_textsec (abfd)->filepos,
eea6121a 1203 obj_datasec (abfd)->vma, obj_datasec (abfd)->size,
923f08ff 1204 obj_datasec (abfd)->filepos,
eea6121a 1205 obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size);
252b5132
RH		 1206#endif
1207
b34976b6 1208 return TRUE;
252b5132
RH		 1209}
1210
1211/*
1212FUNCTION
1213 aout_@var{size}_new_section_hook
1214
1215SYNOPSIS
b34976b6 1216 bfd_boolean aout_@var{size}_new_section_hook,
252b5132 1217 (bfd *abfd,
116c20d2 1218 asection *newsect);
252b5132
RH		 1219
1220DESCRIPTION
1221 Called by the BFD in response to a @code{bfd_make_section}
1222 request.
1223*/
b34976b6 1224bfd_boolean
116c20d2 1225NAME (aout, new_section_hook) (bfd *abfd, asection *newsect)
252b5132 1226{
f7c33884 1227 /* Align to double at least. */
923f08ff 1228 newsect->alignment_power = bfd_get_arch_info (abfd)->section_align_power;
252b5132 1229
252b5132 1230 if (bfd_get_format (abfd) == bfd_object)
f7c33884
NC		 1231 {
1232 if (obj_textsec (abfd) == NULL && !strcmp (newsect->name, ".text"))
1233 {
1234 obj_textsec (abfd)= newsect;
1235 newsect->target_index = N_TEXT;
f7c33884 1236 }
f592407e 1237 else if (obj_datasec (abfd) == NULL && !strcmp (newsect->name, ".data"))
f7c33884
NC		 1238 {
1239 obj_datasec (abfd) = newsect;
1240 newsect->target_index = N_DATA;
f7c33884 1241 }
f592407e 1242 else if (obj_bsssec (abfd) == NULL && !strcmp (newsect->name, ".bss"))
f7c33884
NC		 1243 {
1244 obj_bsssec (abfd) = newsect;
1245 newsect->target_index = N_BSS;
f7c33884
NC		 1246 }
1247 }
252b5132 1248
f7c33884 1249 /* We allow more than three sections internally. */
f592407e 1250 return _bfd_generic_new_section_hook (abfd, newsect);
252b5132
RH		 1251}
1252
b34976b6 1253bfd_boolean
116c20d2
NC		 1254NAME (aout, set_section_contents) (bfd *abfd,
1255 sec_ptr section,
1256 const void * location,
1257 file_ptr offset,
1258 bfd_size_type count)
252b5132 1259{
252b5132
RH		 1260 if (! abfd->output_has_begun)
1261 {
3a8c4a5b 1262 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
b34976b6 1263 return FALSE;
252b5132
RH		 1264 }
1265
1266 if (section == obj_bsssec (abfd))
1267 {
1268 bfd_set_error (bfd_error_no_contents);
b34976b6 1269 return FALSE;
252b5132
RH		 1270 }
1271
1272 if (section != obj_textsec (abfd)
1273 && section != obj_datasec (abfd))
1274 {
e6af3a53
NC		 1275 if (aout_section_merge_with_text_p (abfd, section))
1276 section->filepos = obj_textsec (abfd)->filepos +
1277 (section->vma - obj_textsec (abfd)->vma);
1278 else
1279 {
4eca0228 1280 _bfd_error_handler
695344c0 1281 /* xgettext:c-format */
e6af3a53
NC		 1282 (_("%s: can not represent section `%s' in a.out object file format"),
1283 bfd_get_filename (abfd), bfd_get_section_name (abfd, section));
1284 bfd_set_error (bfd_error_nonrepresentable_section);
1285 return FALSE;
1286 }
252b5132
RH		 1287 }
1288
1289 if (count != 0)
1290 {
1291 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
dc810e39 1292 || bfd_bwrite (location, count, abfd) != count)
b34976b6 1293 return FALSE;
252b5132
RH		 1294 }
1295
b34976b6 1296 return TRUE;
252b5132
RH		 1297}
1298\f
1299/* Read the external symbols from an a.out file. */
1300
b34976b6 1301static bfd_boolean
116c20d2 1302aout_get_external_symbols (bfd *abfd)
252b5132 1303{
116c20d2 1304 if (obj_aout_external_syms (abfd) == NULL)
252b5132
RH		 1305 {
1306 bfd_size_type count;
1307 struct external_nlist *syms;
7c53fd1c 1308 bfd_size_type amt = exec_hdr (abfd)->a_syms;
252b5132 1309
7c53fd1c 1310 count = amt / EXTERNAL_NLIST_SIZE;
6b8f0fd5
MS		 1311 if (count == 0)
1312 return TRUE; /* Nothing to do. */
252b5132
RH		 1313
1314#ifdef USE_MMAP
7c53fd1c 1315 if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd), amt,
b34976b6
AM		 1316 &obj_aout_sym_window (abfd), TRUE))
1317 return FALSE;
252b5132
RH		 1318 syms = (struct external_nlist *) obj_aout_sym_window (abfd).data;
1319#else
1320 /* We allocate using malloc to make the values easy to free
1321 later on. If we put them on the objalloc it might not be
1322 possible to free them. */
7c53fd1c 1323 syms = (struct external_nlist *) bfd_malloc (amt);
6b8f0fd5 1324 if (syms == NULL)
b34976b6 1325 return FALSE;
252b5132 1326
7c53fd1c
AM		 1327 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
1328 || bfd_bread (syms, amt, abfd) != amt)
1329 {
1330 free (syms);
1331 return FALSE;
1332 }
252b5132
RH		 1333#endif
1334
1335 obj_aout_external_syms (abfd) = syms;
1336 obj_aout_external_sym_count (abfd) = count;
1337 }
0ef5a5bd 1338
252b5132
RH		 1339 if (obj_aout_external_strings (abfd) == NULL
1340 && exec_hdr (abfd)->a_syms != 0)
1341 {
1342 unsigned char string_chars[BYTES_IN_WORD];
1343 bfd_size_type stringsize;
1344 char *strings;
dc810e39 1345 bfd_size_type amt = BYTES_IN_WORD;
252b5132
RH		 1346
1347 /* Get the size of the strings. */
1348 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
116c20d2 1349 || bfd_bread ((void *) string_chars, amt, abfd) != amt)
b34976b6 1350 return FALSE;
252b5132
RH		 1351 stringsize = GET_WORD (abfd, string_chars);
1352
1353#ifdef USE_MMAP
82e51918 1354 if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize,
b34976b6
AM		 1355 &obj_aout_string_window (abfd), TRUE))
1356 return FALSE;
252b5132
RH		 1357 strings = (char *) obj_aout_string_window (abfd).data;
1358#else
a50b1753 1359 strings = (char *) bfd_malloc (stringsize + 1);
252b5132 1360 if (strings == NULL)
b34976b6 1361 return FALSE;
252b5132
RH		 1362
1363 /* Skip space for the string count in the buffer for convenience
1364 when using indexes. */
dc810e39
AM		 1365 amt = stringsize - BYTES_IN_WORD;
1366 if (bfd_bread (strings + BYTES_IN_WORD, amt, abfd) != amt)
252b5132
RH		 1367 {
1368 free (strings);
b34976b6 1369 return FALSE;
252b5132
RH		 1370 }
1371#endif
1372
1373 /* Ensure that a zero index yields an empty string. */
1374 strings[0] = '\0';
1375
1376 strings[stringsize - 1] = 0;
1377
1378 obj_aout_external_strings (abfd) = strings;
1379 obj_aout_external_string_size (abfd) = stringsize;
1380 }
1381
b34976b6 1382 return TRUE;
252b5132
RH		 1383}
1384
1385/* Translate an a.out symbol into a BFD symbol. The desc, other, type
1386 and symbol->value fields of CACHE_PTR will be set from the a.out
1387 nlist structure. This function is responsible for setting
1388 symbol->flags and symbol->section, and adjusting symbol->value. */
1389
b34976b6 1390static bfd_boolean
116c20d2 1391translate_from_native_sym_flags (bfd *abfd, aout_symbol_type *cache_ptr)
252b5132
RH		 1392{
1393 flagword visible;
1394
1395 if ((cache_ptr->type & N_STAB) != 0
1396 || cache_ptr->type == N_FN)
1397 {
1398 asection *sec;
1399
1400 /* This is a debugging symbol. */
252b5132
RH		 1401 cache_ptr->symbol.flags = BSF_DEBUGGING;
1402
1403 /* Work out the symbol section. */
1404 switch (cache_ptr->type & N_TYPE)
1405 {
1406 case N_TEXT:
1407 case N_FN:
1408 sec = obj_textsec (abfd);
1409 break;
1410 case N_DATA:
1411 sec = obj_datasec (abfd);
1412 break;
1413 case N_BSS:
1414 sec = obj_bsssec (abfd);
1415 break;
1416 default:
1417 case N_ABS:
1418 sec = bfd_abs_section_ptr;
1419 break;
1420 }
1421
1422 cache_ptr->symbol.section = sec;
1423 cache_ptr->symbol.value -= sec->vma;
1424
b34976b6 1425 return TRUE;
252b5132
RH		 1426 }
1427
1428 /* Get the default visibility. This does not apply to all types, so
1429 we just hold it in a local variable to use if wanted. */
1430 if ((cache_ptr->type & N_EXT) == 0)
1431 visible = BSF_LOCAL;
1432 else
1433 visible = BSF_GLOBAL;
1434
1435 switch (cache_ptr->type)
1436 {
1437 default:
1438 case N_ABS: case N_ABS | N_EXT:
1439 cache_ptr->symbol.section = bfd_abs_section_ptr;
1440 cache_ptr->symbol.flags = visible;
1441 break;
1442
1443 case N_UNDF | N_EXT:
1444 if (cache_ptr->symbol.value != 0)
1445 {
1446 /* This is a common symbol. */
1447 cache_ptr->symbol.flags = BSF_GLOBAL;
1448 cache_ptr->symbol.section = bfd_com_section_ptr;
1449 }
1450 else
1451 {
1452 cache_ptr->symbol.flags = 0;
1453 cache_ptr->symbol.section = bfd_und_section_ptr;
1454 }
1455 break;
1456
1457 case N_TEXT: case N_TEXT | N_EXT:
1458 cache_ptr->symbol.section = obj_textsec (abfd);
1459 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1460 cache_ptr->symbol.flags = visible;
1461 break;
1462
1463 /* N_SETV symbols used to represent set vectors placed in the
1464 data section. They are no longer generated. Theoretically,
1465 it was possible to extract the entries and combine them with
1466 new ones, although I don't know if that was ever actually
1467 done. Unless that feature is restored, treat them as data
1468 symbols. */
1469 case N_SETV: case N_SETV | N_EXT:
1470 case N_DATA: case N_DATA | N_EXT:
1471 cache_ptr->symbol.section = obj_datasec (abfd);
1472 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1473 cache_ptr->symbol.flags = visible;
1474 break;
1475
1476 case N_BSS: case N_BSS | N_EXT:
1477 cache_ptr->symbol.section = obj_bsssec (abfd);
1478 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1479 cache_ptr->symbol.flags = visible;
1480 break;
1481
1482 case N_SETA: case N_SETA | N_EXT:
1483 case N_SETT: case N_SETT | N_EXT:
1484 case N_SETD: case N_SETD | N_EXT:
1485 case N_SETB: case N_SETB | N_EXT:
1486 {
1487 /* This code is no longer needed. It used to be used to make
1488 the linker handle set symbols, but they are now handled in
1489 the add_symbols routine instead. */
252b5132
RH		 1490 switch (cache_ptr->type & N_TYPE)
1491 {
1492 case N_SETA:
1493 cache_ptr->symbol.section = bfd_abs_section_ptr;
1494 break;
1495 case N_SETT:
1496 cache_ptr->symbol.section = obj_textsec (abfd);
1497 break;
1498 case N_SETD:
1499 cache_ptr->symbol.section = obj_datasec (abfd);
1500 break;
1501 case N_SETB:
1502 cache_ptr->symbol.section = obj_bsssec (abfd);
1503 break;
1504 }
1505
1506 cache_ptr->symbol.flags |= BSF_CONSTRUCTOR;
1507 }
1508 break;
1509
1510 case N_WARNING:
1511 /* This symbol is the text of a warning message. The next
1512 symbol is the symbol to associate the warning with. If a
1513 reference is made to that symbol, a warning is issued. */
1514 cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_WARNING;
1515 cache_ptr->symbol.section = bfd_abs_section_ptr;
1516 break;
1517
1518 case N_INDR: case N_INDR | N_EXT:
1519 /* An indirect symbol. This consists of two symbols in a row.
1520 The first symbol is the name of the indirection. The second
1521 symbol is the name of the target. A reference to the first
1522 symbol becomes a reference to the second. */
1523 cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_INDIRECT | visible;
1524 cache_ptr->symbol.section = bfd_ind_section_ptr;
1525 break;
1526
1527 case N_WEAKU:
1528 cache_ptr->symbol.section = bfd_und_section_ptr;
1529 cache_ptr->symbol.flags = BSF_WEAK;
1530 break;
1531
1532 case N_WEAKA:
1533 cache_ptr->symbol.section = bfd_abs_section_ptr;
1534 cache_ptr->symbol.flags = BSF_WEAK;
1535 break;
1536
1537 case N_WEAKT:
1538 cache_ptr->symbol.section = obj_textsec (abfd);
1539 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1540 cache_ptr->symbol.flags = BSF_WEAK;
1541 break;
1542
1543 case N_WEAKD:
1544 cache_ptr->symbol.section = obj_datasec (abfd);
1545 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1546 cache_ptr->symbol.flags = BSF_WEAK;
1547 break;
1548
1549 case N_WEAKB:
1550 cache_ptr->symbol.section = obj_bsssec (abfd);
1551 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1552 cache_ptr->symbol.flags = BSF_WEAK;
1553 break;
1554 }
1555
b34976b6 1556 return TRUE;
252b5132
RH		 1557}
1558
1559/* Set the fields of SYM_POINTER according to CACHE_PTR. */
1560
b34976b6 1561static bfd_boolean
116c20d2
NC		 1562translate_to_native_sym_flags (bfd *abfd,
1563 asymbol *cache_ptr,
1564 struct external_nlist *sym_pointer)
252b5132
RH		 1565{
1566 bfd_vma value = cache_ptr->value;
1567 asection *sec;
1568 bfd_vma off;
1569
1570 /* Mask out any existing type bits in case copying from one section
1571 to another. */
1572 sym_pointer->e_type[0] &= ~N_TYPE;
1573
1574 sec = bfd_get_section (cache_ptr);
1575 off = 0;
1576
1577 if (sec == NULL)
1578 {
1579 /* This case occurs, e.g., for the *DEBUG* section of a COFF
1580 file. */
4eca0228 1581 _bfd_error_handler
695344c0 1582 /* xgettext:c-format */
4eca0228
AM		 1583 (_("%s: can not represent section for symbol `%s' in a.out "
1584 "object file format"),
0ef5a5bd 1585 bfd_get_filename (abfd),
252b5132
RH		 1586 cache_ptr->name != NULL ? cache_ptr->name : _("*unknown*"));
1587 bfd_set_error (bfd_error_nonrepresentable_section);
b34976b6 1588 return FALSE;
252b5132
RH		 1589 }
1590
1591 if (sec->output_section != NULL)
1592 {
1593 off = sec->output_offset;
1594 sec = sec->output_section;
1595 }
1596
1597 if (bfd_is_abs_section (sec))
1598 sym_pointer->e_type[0] |= N_ABS;
1599 else if (sec == obj_textsec (abfd))
1600 sym_pointer->e_type[0] |= N_TEXT;
1601 else if (sec == obj_datasec (abfd))
1602 sym_pointer->e_type[0] |= N_DATA;
1603 else if (sec == obj_bsssec (abfd))
1604 sym_pointer->e_type[0] |= N_BSS;
1605 else if (bfd_is_und_section (sec))
1606 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1607 else if (bfd_is_ind_section (sec))
1608 sym_pointer->e_type[0] = N_INDR;
1609 else if (bfd_is_com_section (sec))
1610 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1611 else
1612 {
e6af3a53
NC		 1613 if (aout_section_merge_with_text_p (abfd, sec))
1614 sym_pointer->e_type[0] |= N_TEXT;
1615 else
1616 {
4eca0228 1617 _bfd_error_handler
695344c0 1618 /* xgettext:c-format */
e6af3a53
NC		 1619 (_("%s: can not represent section `%s' in a.out object file format"),
1620 bfd_get_filename (abfd), bfd_get_section_name (abfd, sec));
1621 bfd_set_error (bfd_error_nonrepresentable_section);
1622 return FALSE;
1623 }
252b5132
RH		 1624 }
1625
f7c33884 1626 /* Turn the symbol from section relative to absolute again. */
252b5132
RH		 1627 value += sec->vma + off;
1628
1629 if ((cache_ptr->flags & BSF_WARNING) != 0)
1630 sym_pointer->e_type[0] = N_WARNING;
1631
1632 if ((cache_ptr->flags & BSF_DEBUGGING) != 0)
1633 sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type;
1634 else if ((cache_ptr->flags & BSF_GLOBAL) != 0)
1635 sym_pointer->e_type[0] |= N_EXT;
930d924d
L		 1636 else if ((cache_ptr->flags & BSF_LOCAL) != 0)
1637 sym_pointer->e_type[0] &= ~N_EXT;
252b5132
RH		 1638
1639 if ((cache_ptr->flags & BSF_CONSTRUCTOR) != 0)
1640 {
1641 int type = ((aout_symbol_type *) cache_ptr)->type;
f7c33884 1642
252b5132
RH		 1643 switch (type)
1644 {
1645 case N_ABS: type = N_SETA; break;
1646 case N_TEXT: type = N_SETT; break;
1647 case N_DATA: type = N_SETD; break;
1648 case N_BSS: type = N_SETB; break;
1649 }
1650 sym_pointer->e_type[0] = type;
1651 }
1652
1653 if ((cache_ptr->flags & BSF_WEAK) != 0)
1654 {
1655 int type;
1656
1657 switch (sym_pointer->e_type[0] & N_TYPE)
1658 {
1659 default:
1660 case N_ABS: type = N_WEAKA; break;
1661 case N_TEXT: type = N_WEAKT; break;
1662 case N_DATA: type = N_WEAKD; break;
1663 case N_BSS: type = N_WEAKB; break;
1664 case N_UNDF: type = N_WEAKU; break;
1665 }
1666 sym_pointer->e_type[0] = type;
1667 }
1668
923f08ff 1669 PUT_WORD (abfd, value, sym_pointer->e_value);
252b5132 1670
b34976b6 1671 return TRUE;
252b5132
RH		 1672}
1673\f
0ef5a5bd 1674/* Native-level interface to symbols. */
252b5132
RH		 1675
1676asymbol *
116c20d2 1677NAME (aout, make_empty_symbol) (bfd *abfd)
252b5132 1678{
dc810e39 1679 bfd_size_type amt = sizeof (aout_symbol_type);
116c20d2 1680
d3ce72d0
NC		 1681 aout_symbol_type *new_symbol = (aout_symbol_type *) bfd_zalloc (abfd, amt);
1682 if (!new_symbol)
252b5132 1683 return NULL;
d3ce72d0 1684 new_symbol->symbol.the_bfd = abfd;
252b5132 1685
d3ce72d0 1686 return &new_symbol->symbol;
252b5132
RH		 1687}
1688
1689/* Translate a set of internal symbols into external symbols. */
1690
b34976b6 1691bfd_boolean
116c20d2
NC		 1692NAME (aout, translate_symbol_table) (bfd *abfd,
1693 aout_symbol_type *in,
1694 struct external_nlist *ext,
1695 bfd_size_type count,
1696 char *str,
1697 bfd_size_type strsize,
1698 bfd_boolean dynamic)
252b5132
RH		 1699{
1700 struct external_nlist *ext_end;
1701
1702 ext_end = ext + count;
1703 for (; ext < ext_end; ext++, in++)
1704 {
1705 bfd_vma x;
1706
1707 x = GET_WORD (abfd, ext->e_strx);
1708 in->symbol.the_bfd = abfd;
1709
1710 /* For the normal symbols, the zero index points at the number
1711 of bytes in the string table but is to be interpreted as the
1712 null string. For the dynamic symbols, the number of bytes in
1713 the string table is stored in the __DYNAMIC structure and the
1714 zero index points at an actual string. */
1715 if (x == 0 && ! dynamic)
1716 in->symbol.name = "";
1717 else if (x < strsize)
1718 in->symbol.name = str + x;
1719 else
b34976b6 1720 return FALSE;
252b5132
RH		 1721
1722 in->symbol.value = GET_SWORD (abfd, ext->e_value);
dc810e39
AM		 1723 in->desc = H_GET_16 (abfd, ext->e_desc);
1724 in->other = H_GET_8 (abfd, ext->e_other);
1725 in->type = H_GET_8 (abfd, ext->e_type);
252b5132
RH		 1726 in->symbol.udata.p = NULL;
1727
1728 if (! translate_from_native_sym_flags (abfd, in))
b34976b6 1729 return FALSE;
252b5132
RH		 1730
1731 if (dynamic)
1732 in->symbol.flags |= BSF_DYNAMIC;
1733 }
1734
b34976b6 1735 return TRUE;
252b5132
RH		 1736}
1737
1738/* We read the symbols into a buffer, which is discarded when this
1739 function exits. We read the strings into a buffer large enough to
0ef5a5bd 1740 hold them all plus all the cached symbol entries. */
252b5132 1741
b34976b6 1742bfd_boolean
116c20d2 1743NAME (aout, slurp_symbol_table) (bfd *abfd)
252b5132
RH		 1744{
1745 struct external_nlist *old_external_syms;
1746 aout_symbol_type *cached;
dc810e39 1747 bfd_size_type cached_size;
252b5132 1748
f7c33884 1749 /* If there's no work to be done, don't do any. */
116c20d2 1750 if (obj_aout_symbols (abfd) != NULL)
b34976b6 1751 return TRUE;
252b5132
RH		 1752
1753 old_external_syms = obj_aout_external_syms (abfd);
1754
1755 if (! aout_get_external_symbols (abfd))
b34976b6 1756 return FALSE;
252b5132 1757
dc810e39 1758 cached_size = obj_aout_external_sym_count (abfd);
87b32780
MS		 1759 if (cached_size == 0)
1760 return TRUE; /* Nothing to do. */
1761
dc810e39 1762 cached_size *= sizeof (aout_symbol_type);
a50b1753 1763 cached = (aout_symbol_type *) bfd_zmalloc (cached_size);
87b32780 1764 if (cached == NULL)
b34976b6 1765 return FALSE;
252b5132
RH		 1766
1767 /* Convert from external symbol information to internal. */
116c20d2 1768 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 1769 (abfd, cached,
1770 obj_aout_external_syms (abfd),
1771 obj_aout_external_sym_count (abfd),
1772 obj_aout_external_strings (abfd),
1773 obj_aout_external_string_size (abfd),
b34976b6 1774 FALSE)))
252b5132
RH		 1775 {
1776 free (cached);
b34976b6 1777 return FALSE;
252b5132
RH		 1778 }
1779
1780 bfd_get_symcount (abfd) = obj_aout_external_sym_count (abfd);
1781
1782 obj_aout_symbols (abfd) = cached;
1783
1784 /* It is very likely that anybody who calls this function will not
1785 want the external symbol information, so if it was allocated
1786 because of our call to aout_get_external_symbols, we free it up
1787 right away to save space. */
116c20d2
NC		 1788 if (old_external_syms == NULL
1789 && obj_aout_external_syms (abfd) != NULL)
252b5132
RH		 1790 {
1791#ifdef USE_MMAP
1792 bfd_free_window (&obj_aout_sym_window (abfd));
1793#else
1794 free (obj_aout_external_syms (abfd));
1795#endif
1796 obj_aout_external_syms (abfd) = NULL;
1797 }
1798
b34976b6 1799 return TRUE;
252b5132
RH		 1800}
1801\f
1802/* We use a hash table when writing out symbols so that we only write
1803 out a particular string once. This helps particularly when the
1804 linker writes out stabs debugging entries, because each different
1805 contributing object file tends to have many duplicate stabs
1806 strings.
1807
1808 This hash table code breaks dbx on SunOS 4.1.3, so we don't do it
1809 if BFD_TRADITIONAL_FORMAT is set. */
1810
252b5132
RH		 1811/* Get the index of a string in a strtab, adding it if it is not
1812 already present. */
1813
116c20d2
NC		 1814static inline bfd_size_type
1815add_to_stringtab (bfd *abfd,
1816 struct bfd_strtab_hash *tab,
1817 const char *str,
1818 bfd_boolean copy)
252b5132 1819{
b34976b6 1820 bfd_boolean hash;
91d6fa6a 1821 bfd_size_type str_index;
252b5132
RH		 1822
1823 /* An index of 0 always means the empty string. */
1824 if (str == 0 || *str == '\0')
1825 return 0;
1826
1827 /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx
1828 doesn't understand a hashed string table. */
b34976b6 1829 hash = TRUE;
252b5132 1830 if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
b34976b6 1831 hash = FALSE;
252b5132 1832
91d6fa6a 1833 str_index = _bfd_stringtab_add (tab, str, hash, copy);
252b5132 1834
91d6fa6a 1835 if (str_index != (bfd_size_type) -1)
116c20d2
NC		 1836 /* Add BYTES_IN_WORD to the return value to account for the
1837 space taken up by the string table size. */
91d6fa6a 1838 str_index += BYTES_IN_WORD;
252b5132 1839
91d6fa6a 1840 return str_index;
252b5132
RH		 1841}
1842
1843/* Write out a strtab. ABFD is already at the right location in the
1844 file. */
1845
b34976b6 1846static bfd_boolean
116c20d2 1847emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab)
252b5132
RH		 1848{
1849 bfd_byte buffer[BYTES_IN_WORD];
dc810e39 1850 bfd_size_type amt = BYTES_IN_WORD;
252b5132
RH		 1851
1852 /* The string table starts with the size. */
1853 PUT_WORD (abfd, _bfd_stringtab_size (tab) + BYTES_IN_WORD, buffer);
116c20d2 1854 if (bfd_bwrite ((void *) buffer, amt, abfd) != amt)
b34976b6 1855 return FALSE;
252b5132
RH		 1856
1857 return _bfd_stringtab_emit (abfd, tab);
1858}
1859\f
b34976b6 1860bfd_boolean
116c20d2 1861NAME (aout, write_syms) (bfd *abfd)
252b5132
RH		 1862{
1863 unsigned int count ;
1864 asymbol **generic = bfd_get_outsymbols (abfd);
1865 struct bfd_strtab_hash *strtab;
1866
1867 strtab = _bfd_stringtab_init ();
1868 if (strtab == NULL)
b34976b6 1869 return FALSE;
252b5132
RH		 1870
1871 for (count = 0; count < bfd_get_symcount (abfd); count++)
1872 {
1873 asymbol *g = generic[count];
1874 bfd_size_type indx;
1875 struct external_nlist nsp;
dc810e39 1876 bfd_size_type amt;
252b5132 1877
b34976b6 1878 indx = add_to_stringtab (abfd, strtab, g->name, FALSE);
252b5132
RH		 1879 if (indx == (bfd_size_type) -1)
1880 goto error_return;
1881 PUT_WORD (abfd, indx, (bfd_byte *) nsp.e_strx);
1882
923f08ff 1883 if (bfd_asymbol_flavour (g) == abfd->xvec->flavour)
252b5132 1884 {
923f08ff
AM		 1885 H_PUT_16 (abfd, aout_symbol (g)->desc, nsp.e_desc);
1886 H_PUT_8 (abfd, aout_symbol (g)->other, nsp.e_other);
1887 H_PUT_8 (abfd, aout_symbol (g)->type, nsp.e_type);
252b5132
RH		 1888 }
1889 else
1890 {
dc810e39
AM		 1891 H_PUT_16 (abfd, 0, nsp.e_desc);
1892 H_PUT_8 (abfd, 0, nsp.e_other);
1893 H_PUT_8 (abfd, 0, nsp.e_type);
252b5132
RH		 1894 }
1895
1896 if (! translate_to_native_sym_flags (abfd, g, &nsp))
1897 goto error_return;
1898
dc810e39 1899 amt = EXTERNAL_NLIST_SIZE;
116c20d2 1900 if (bfd_bwrite ((void *) &nsp, amt, abfd) != amt)
252b5132
RH		 1901 goto error_return;
1902
1903 /* NB: `KEEPIT' currently overlays `udata.p', so set this only
1904 here, at the end. */
1905 g->KEEPIT = count;
1906 }
1907
1908 if (! emit_stringtab (abfd, strtab))
1909 goto error_return;
1910
1911 _bfd_stringtab_free (strtab);
1912
b34976b6 1913 return TRUE;
252b5132
RH		 1914
1915error_return:
1916 _bfd_stringtab_free (strtab);
b34976b6 1917 return FALSE;
252b5132 1918}
252b5132
RH		 1919\f
1920long
116c20d2 1921NAME (aout, canonicalize_symtab) (bfd *abfd, asymbol **location)
252b5132 1922{
116c20d2
NC		 1923 unsigned int counter = 0;
1924 aout_symbol_type *symbase;
252b5132 1925
116c20d2
NC		 1926 if (!NAME (aout, slurp_symbol_table) (abfd))
1927 return -1;
252b5132 1928
116c20d2
NC		 1929 for (symbase = obj_aout_symbols (abfd);
1930 counter++ < bfd_get_symcount (abfd);
1931 )
1932 *(location++) = (asymbol *) (symbase++);
1933 *location++ =0;
1934 return bfd_get_symcount (abfd);
252b5132 1935}
252b5132 1936\f
f7c33884 1937/* Standard reloc stuff. */
0ef5a5bd 1938/* Output standard relocation information to a file in target byte order. */
252b5132 1939
116c20d2
NC		 1940extern void NAME (aout, swap_std_reloc_out)
1941 (bfd *, arelent *, struct reloc_std_external *);
252b5132
RH		 1942
1943void
116c20d2
NC		 1944NAME (aout, swap_std_reloc_out) (bfd *abfd,
1945 arelent *g,
1946 struct reloc_std_external *natptr)
252b5132
RH		 1947{
1948 int r_index;
1949 asymbol *sym = *(g->sym_ptr_ptr);
1950 int r_extern;
1951 unsigned int r_length;
1952 int r_pcrel;
1953 int r_baserel, r_jmptable, r_relative;
1954 asection *output_section = sym->section->output_section;
1955
923f08ff 1956 PUT_WORD (abfd, g->address, natptr->r_address);
252b5132 1957
f7c33884
NC		 1958 r_length = g->howto->size ; /* Size as a power of two. */
1959 r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */
252b5132
RH		 1960 /* XXX This relies on relocs coming from a.out files. */
1961 r_baserel = (g->howto->type & 8) != 0;
1962 r_jmptable = (g->howto->type & 16) != 0;
1963 r_relative = (g->howto->type & 32) != 0;
1964
f7c33884 1965 /* Name was clobbered by aout_write_syms to be symbol index. */
252b5132
RH		 1966
1967 /* If this relocation is relative to a symbol then set the
1968 r_index to the symbols index, and the r_extern bit.
1969
1970 Absolute symbols can come in in two ways, either as an offset
1971 from the abs section, or as a symbol which has an abs value.
f7c33884 1972 check for that here. */
252b5132 1973
252b5132
RH		 1974 if (bfd_is_com_section (output_section)
1975 || bfd_is_abs_section (output_section)
22184a77
NC		 1976 || bfd_is_und_section (output_section)
1977 /* PR gas/3041 a.out relocs against weak symbols
1978 must be treated as if they were against externs. */
1979 || (sym->flags & BSF_WEAK))
252b5132
RH		 1980 {
1981 if (bfd_abs_section_ptr->symbol == sym)
f7c33884
NC		 1982 {
1983 /* Whoops, looked like an abs symbol, but is
1984 really an offset from the abs section. */
1985 r_index = N_ABS;
1986 r_extern = 0;
1987 }
252b5132 1988 else
f7c33884
NC		 1989 {
1990 /* Fill in symbol. */
1991 r_extern = 1;
1992 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
1993 }
252b5132
RH		 1994 }
1995 else
1996 {
f7c33884 1997 /* Just an ordinary section. */
252b5132
RH		 1998 r_extern = 0;
1999 r_index = output_section->target_index;
2000 }
2001
f7c33884 2002 /* Now the fun stuff. */
923f08ff
AM		 2003 if (bfd_header_big_endian (abfd))
2004 {
252b5132
RH		 2005 natptr->r_index[0] = r_index >> 16;
2006 natptr->r_index[1] = r_index >> 8;
2007 natptr->r_index[2] = r_index;
923f08ff
AM		 2008 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
2009 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
2010 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
2011 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
2012 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
2013 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
2014 }
2015 else
2016 {
2017 natptr->r_index[2] = r_index >> 16;
2018 natptr->r_index[1] = r_index >> 8;
2019 natptr->r_index[0] = r_index;
2020 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
2021 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
2022 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
2023 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
2024 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
2025 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
2026 }
252b5132
RH		 2027}
2028
f7c33884 2029/* Extended stuff. */
0ef5a5bd 2030/* Output extended relocation information to a file in target byte order. */
252b5132 2031
116c20d2
NC		 2032extern void NAME (aout, swap_ext_reloc_out)
2033 (bfd *, arelent *, struct reloc_ext_external *);
252b5132
RH		 2034
2035void
116c20d2
NC		 2036NAME (aout, swap_ext_reloc_out) (bfd *abfd,
2037 arelent *g,
2038 struct reloc_ext_external *natptr)
252b5132
RH		 2039{
2040 int r_index;
2041 int r_extern;
2042 unsigned int r_type;
dc810e39 2043 bfd_vma r_addend;
252b5132
RH		 2044 asymbol *sym = *(g->sym_ptr_ptr);
2045 asection *output_section = sym->section->output_section;
2046
2047 PUT_WORD (abfd, g->address, natptr->r_address);
2048
2049 r_type = (unsigned int) g->howto->type;
2050
2051 r_addend = g->addend;
2052 if ((sym->flags & BSF_SECTION_SYM) != 0)
2053 r_addend += (*(g->sym_ptr_ptr))->section->output_section->vma;
2054
2055 /* If this relocation is relative to a symbol then set the
2056 r_index to the symbols index, and the r_extern bit.
2057
2058 Absolute symbols can come in in two ways, either as an offset
2059 from the abs section, or as a symbol which has an abs value.
2060 check for that here. */
252b5132
RH		 2061 if (bfd_is_abs_section (bfd_get_section (sym)))
2062 {
2063 r_extern = 0;
2064 r_index = N_ABS;
2065 }
2066 else if ((sym->flags & BSF_SECTION_SYM) == 0)
2067 {
2068 if (bfd_is_und_section (bfd_get_section (sym))
2069 || (sym->flags & BSF_GLOBAL) != 0)
2070 r_extern = 1;
2071 else
2072 r_extern = 0;
2073 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
2074 }
2075 else
2076 {
f7c33884 2077 /* Just an ordinary section. */
252b5132
RH		 2078 r_extern = 0;
2079 r_index = output_section->target_index;
2080 }
2081
f7c33884 2082 /* Now the fun stuff. */
923f08ff
AM		 2083 if (bfd_header_big_endian (abfd))
2084 {
2085 natptr->r_index[0] = r_index >> 16;
2086 natptr->r_index[1] = r_index >> 8;
2087 natptr->r_index[2] = r_index;
2088 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
2089 | (r_type << RELOC_EXT_BITS_TYPE_SH_BIG));
2090 }
2091 else
2092 {
2093 natptr->r_index[2] = r_index >> 16;
2094 natptr->r_index[1] = r_index >> 8;
2095 natptr->r_index[0] = r_index;
2096 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
2097 | (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE));
2098 }
252b5132
RH		 2099
2100 PUT_WORD (abfd, r_addend, natptr->r_addend);
2101}
2102
2103/* BFD deals internally with all things based from the section they're
2104 in. so, something in 10 bytes into a text section with a base of
2105 50 would have a symbol (.text+10) and know .text vma was 50.
2106
2107 Aout keeps all it's symbols based from zero, so the symbol would
2108 contain 60. This macro subs the base of each section from the value
923f08ff
AM		 2109 to give the true offset from the section. */
2110
2111#define MOVE_ADDRESS(ad) \
2112 if (r_extern) \
2113 { \
2114 /* Undefined symbol. */ \
2115 cache_ptr->sym_ptr_ptr = symbols + r_index; \
252b5132 2116 cache_ptr->addend = ad; \
252b5132 2117 } \
923f08ff
AM		 2118 else \
2119 { \
2120 /* Defined, section relative. Replace symbol with pointer to \
2121 symbol which points to section. */ \
2122 switch (r_index) \
2123 { \
2124 case N_TEXT: \
2125 case N_TEXT | N_EXT: \
2126 cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \
2127 cache_ptr->addend = ad - su->textsec->vma; \
2128 break; \
2129 case N_DATA: \
2130 case N_DATA | N_EXT: \
2131 cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \
2132 cache_ptr->addend = ad - su->datasec->vma; \
2133 break; \
2134 case N_BSS: \
2135 case N_BSS | N_EXT: \
2136 cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \
2137 cache_ptr->addend = ad - su->bsssec->vma; \
2138 break; \
2139 default: \
2140 case N_ABS: \
2141 case N_ABS | N_EXT: \
2142 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
2143 cache_ptr->addend = ad; \
2144 break; \
2145 } \
2146 }
252b5132
RH		 2147
2148void
116c20d2
NC		 2149NAME (aout, swap_ext_reloc_in) (bfd *abfd,
2150 struct reloc_ext_external *bytes,
2151 arelent *cache_ptr,
2152 asymbol **symbols,
2153 bfd_size_type symcount)
252b5132
RH		 2154{
2155 unsigned int r_index;
2156 int r_extern;
2157 unsigned int r_type;
2158 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2159
2160 cache_ptr->address = (GET_SWORD (abfd, bytes->r_address));
2161
f7c33884 2162 /* Now the fun stuff. */
923f08ff
AM		 2163 if (bfd_header_big_endian (abfd))
2164 {
d45913a0
DA		 2165 r_index = (((unsigned int) bytes->r_index[0] << 16)
2166 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2167 | bytes->r_index[2]);
2168 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
2169 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
2170 >> RELOC_EXT_BITS_TYPE_SH_BIG);
2171 }
2172 else
2173 {
d45913a0
DA		 2174 r_index = (((unsigned int) bytes->r_index[2] << 16)
2175 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2176 | bytes->r_index[0]);
2177 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
2178 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
2179 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
2180 }
252b5132 2181
ad756e3f
AM		 2182 if (r_type < TABLE_SIZE (howto_table_ext))
2183 cache_ptr->howto = howto_table_ext + r_type;
2184 else
2185 cache_ptr->howto = NULL;
252b5132
RH		 2186
2187 /* Base relative relocs are always against the symbol table,
2188 regardless of the setting of r_extern. r_extern just reflects
2189 whether the symbol the reloc is against is local or global. */
d45913a0
DA		 2190 if (r_type == (unsigned int) RELOC_BASE10
2191 || r_type == (unsigned int) RELOC_BASE13
2192 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 2193 r_extern = 1;
2194
2195 if (r_extern && r_index > symcount)
2196 {
2197 /* We could arrange to return an error, but it might be useful
2198 to see the file even if it is bad. */
2199 r_extern = 0;
2200 r_index = N_ABS;
2201 }
2202
923f08ff 2203 MOVE_ADDRESS (GET_SWORD (abfd, bytes->r_addend));
252b5132
RH		 2204}
2205
2206void
116c20d2
NC		 2207NAME (aout, swap_std_reloc_in) (bfd *abfd,
2208 struct reloc_std_external *bytes,
2209 arelent *cache_ptr,
2210 asymbol **symbols,
2211 bfd_size_type symcount)
252b5132
RH		 2212{
2213 unsigned int r_index;
2214 int r_extern;
2215 unsigned int r_length;
2216 int r_pcrel;
2217 int r_baserel, r_jmptable, r_relative;
2218 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2219 unsigned int howto_idx;
2220
dc810e39 2221 cache_ptr->address = H_GET_32 (abfd, bytes->r_address);
252b5132 2222
f7c33884 2223 /* Now the fun stuff. */
923f08ff
AM		 2224 if (bfd_header_big_endian (abfd))
2225 {
d45913a0
DA		 2226 r_index = (((unsigned int) bytes->r_index[0] << 16)
2227 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2228 | bytes->r_index[2]);
2229 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
2230 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
2231 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
2232 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
2233 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
2234 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
2235 >> RELOC_STD_BITS_LENGTH_SH_BIG);
2236 }
2237 else
2238 {
d45913a0
DA		 2239 r_index = (((unsigned int) bytes->r_index[2] << 16)
2240 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2241 | bytes->r_index[0]);
2242 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
2243 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
2244 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE));
2245 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE));
2246 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_LITTLE));
2247 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
2248 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
2249 }
252b5132 2250
923f08ff
AM		 2251 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
2252 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 2253 if (howto_idx < TABLE_SIZE (howto_table_std))
2254 {
2255 cache_ptr->howto = howto_table_std + howto_idx;
2256 if (cache_ptr->howto->type == (unsigned int) -1)
2257 cache_ptr->howto = NULL;
2258 }
2259 else
2260 cache_ptr->howto = NULL;
252b5132
RH		 2261
2262 /* Base relative relocs are always against the symbol table,
2263 regardless of the setting of r_extern. r_extern just reflects
2264 whether the symbol the reloc is against is local or global. */
2265 if (r_baserel)
2266 r_extern = 1;
2267
2268 if (r_extern && r_index > symcount)
2269 {
2270 /* We could arrange to return an error, but it might be useful
2271 to see the file even if it is bad. */
2272 r_extern = 0;
2273 r_index = N_ABS;
2274 }
2275
923f08ff 2276 MOVE_ADDRESS (0);
252b5132
RH		 2277}
2278
2279/* Read and swap the relocs for a section. */
2280
b34976b6 2281bfd_boolean
116c20d2 2282NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols)
252b5132 2283{
dc810e39 2284 bfd_size_type count;
252b5132 2285 bfd_size_type reloc_size;
116c20d2 2286 void * relocs;
252b5132
RH		 2287 arelent *reloc_cache;
2288 size_t each_size;
2289 unsigned int counter = 0;
2290 arelent *cache_ptr;
dc810e39 2291 bfd_size_type amt;
252b5132
RH		 2292
2293 if (asect->relocation)
b34976b6 2294 return TRUE;
252b5132
RH		 2295
2296 if (asect->flags & SEC_CONSTRUCTOR)
b34976b6 2297 return TRUE;
252b5132
RH		 2298
2299 if (asect == obj_datasec (abfd))
923f08ff 2300 reloc_size = exec_hdr (abfd)->a_drsize;
252b5132 2301 else if (asect == obj_textsec (abfd))
923f08ff 2302 reloc_size = exec_hdr (abfd)->a_trsize;
252b5132
RH		 2303 else if (asect == obj_bsssec (abfd))
2304 reloc_size = 0;
2305 else
2306 {
2307 bfd_set_error (bfd_error_invalid_operation);
b34976b6 2308 return FALSE;
252b5132
RH		 2309 }
2310
078c4bfc
MS		 2311 if (reloc_size == 0)
2312 return TRUE; /* Nothing to be done. */
2313
252b5132 2314 if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
b34976b6 2315 return FALSE;
252b5132
RH		 2316
2317 each_size = obj_reloc_entry_size (abfd);
2318
2319 count = reloc_size / each_size;
078c4bfc
MS		 2320 if (count == 0)
2321 return TRUE; /* Nothing to be done. */
252b5132 2322
dc810e39 2323 amt = count * sizeof (arelent);
a50b1753 2324 reloc_cache = (arelent *) bfd_zmalloc (amt);
078c4bfc 2325 if (reloc_cache == NULL)
b34976b6 2326 return FALSE;
252b5132 2327
dc810e39 2328 relocs = bfd_malloc (reloc_size);
078c4bfc 2329 if (relocs == NULL)
252b5132
RH		 2330 {
2331 free (reloc_cache);
b34976b6 2332 return FALSE;
252b5132
RH		 2333 }
2334
dc810e39 2335 if (bfd_bread (relocs, reloc_size, abfd) != reloc_size)
252b5132
RH		 2336 {
2337 free (relocs);
2338 free (reloc_cache);
b34976b6 2339 return FALSE;
252b5132
RH		 2340 }
2341
2342 cache_ptr = reloc_cache;
2343 if (each_size == RELOC_EXT_SIZE)
2344 {
dc810e39 2345 struct reloc_ext_external *rptr = (struct reloc_ext_external *) relocs;
252b5132
RH		 2346
2347 for (; counter < count; counter++, rptr++, cache_ptr++)
1642229e 2348 MY_swap_ext_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2349 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2350 }
2351 else
2352 {
dc810e39 2353 struct reloc_std_external *rptr = (struct reloc_std_external *) relocs;
252b5132
RH		 2354
2355 for (; counter < count; counter++, rptr++, cache_ptr++)
2356 MY_swap_std_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2357 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2358 }
2359
2360 free (relocs);
2361
2362 asect->relocation = reloc_cache;
2363 asect->reloc_count = cache_ptr - reloc_cache;
2364
b34976b6 2365 return TRUE;
252b5132
RH		 2366}
2367
2368/* Write out a relocation section into an object file. */
2369
b34976b6 2370bfd_boolean
116c20d2 2371NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section)
252b5132
RH		 2372{
2373 arelent **generic;
2374 unsigned char *native, *natptr;
2375 size_t each_size;
2376
2377 unsigned int count = section->reloc_count;
dc810e39 2378 bfd_size_type natsize;
252b5132
RH		 2379
2380 if (count == 0 || section->orelocation == NULL)
b34976b6 2381 return TRUE;
252b5132
RH		 2382
2383 each_size = obj_reloc_entry_size (abfd);
dc810e39 2384 natsize = (bfd_size_type) each_size * count;
a50b1753 2385 native = (unsigned char *) bfd_zalloc (abfd, natsize);
252b5132 2386 if (!native)
b34976b6 2387 return FALSE;
252b5132
RH		 2388
2389 generic = section->orelocation;
2390
2391 if (each_size == RELOC_EXT_SIZE)
2392 {
2393 for (natptr = native;
2394 count != 0;
2395 --count, natptr += each_size, ++generic)
1642229e
HPN		 2396 MY_swap_ext_reloc_out (abfd, *generic,
2397 (struct reloc_ext_external *) natptr);
252b5132
RH		 2398 }
2399 else
2400 {
2401 for (natptr = native;
2402 count != 0;
2403 --count, natptr += each_size, ++generic)
923f08ff
AM		 2404 MY_swap_std_reloc_out (abfd, *generic,
2405 (struct reloc_std_external *) natptr);
252b5132
RH		 2406 }
2407
116c20d2 2408 if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
dc810e39 2409 {
923f08ff 2410 bfd_release (abfd, native);
b34976b6 2411 return FALSE;
dc810e39 2412 }
252b5132
RH		 2413 bfd_release (abfd, native);
2414
b34976b6 2415 return TRUE;
252b5132
RH		 2416}
2417
f7c33884
NC		 2418/* This is stupid. This function should be a boolean predicate. */
2419
252b5132 2420long
116c20d2
NC		 2421NAME (aout, canonicalize_reloc) (bfd *abfd,
2422 sec_ptr section,
2423 arelent **relptr,
2424 asymbol **symbols)
252b5132
RH		 2425{
2426 arelent *tblptr = section->relocation;
2427 unsigned int count;
2428
2429 if (section == obj_bsssec (abfd))
2430 {
2431 *relptr = NULL;
2432 return 0;
2433 }
2434
116c20d2 2435 if (!(tblptr || NAME (aout, slurp_reloc_table) (abfd, section, symbols)))
252b5132
RH		 2436 return -1;
2437
923f08ff
AM		 2438 if (section->flags & SEC_CONSTRUCTOR)
2439 {
2440 arelent_chain *chain = section->constructor_chain;
2441 for (count = 0; count < section->reloc_count; count ++)
2442 {
2443 *relptr ++ = &chain->relent;
2444 chain = chain->next;
2445 }
252b5132 2446 }
923f08ff
AM		 2447 else
2448 {
2449 tblptr = section->relocation;
252b5132 2450
923f08ff
AM		 2451 for (count = 0; count++ < section->reloc_count; )
2452 {
2453 *relptr++ = tblptr++;
2454 }
2455 }
252b5132
RH		 2456 *relptr = 0;
2457
2458 return section->reloc_count;
2459}
2460
2461long
116c20d2 2462NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect)
252b5132 2463{
923f08ff
AM		 2464 if (bfd_get_format (abfd) != bfd_object)
2465 {
2466 bfd_set_error (bfd_error_invalid_operation);
2467 return -1;
2468 }
f7c33884 2469
923f08ff 2470 if (asect->flags & SEC_CONSTRUCTOR)
116c20d2 2471 return sizeof (arelent *) * (asect->reloc_count + 1);
252b5132
RH		 2472
2473 if (asect == obj_datasec (abfd))
116c20d2
NC		 2474 return sizeof (arelent *)
2475 * ((exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd))
2476 + 1);
252b5132
RH		 2477
2478 if (asect == obj_textsec (abfd))
116c20d2
NC		 2479 return sizeof (arelent *)
2480 * ((exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd))
2481 + 1);
252b5132
RH		 2482
2483 if (asect == obj_bsssec (abfd))
2484 return sizeof (arelent *);
2485
2486 if (asect == obj_bsssec (abfd))
2487 return 0;
2488
2489 bfd_set_error (bfd_error_invalid_operation);
2490 return -1;
2491}
252b5132
RH		 2492\f
2493long
116c20d2 2494NAME (aout, get_symtab_upper_bound) (bfd *abfd)
252b5132 2495{
116c20d2 2496 if (!NAME (aout, slurp_symbol_table) (abfd))
252b5132
RH		 2497 return -1;
2498
2499 return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
2500}
2501
1725a96e 2502alent *
116c20d2
NC		 2503NAME (aout, get_lineno) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2504 asymbol *ignore_symbol ATTRIBUTE_UNUSED)
252b5132 2505{
116c20d2 2506 return NULL;
252b5132
RH		 2507}
2508
252b5132 2509void
116c20d2
NC		 2510NAME (aout, get_symbol_info) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2511 asymbol *symbol,
2512 symbol_info *ret)
252b5132
RH		 2513{
2514 bfd_symbol_info (symbol, ret);
2515
2516 if (ret->type == '?')
2517 {
923f08ff 2518 int type_code = aout_symbol (symbol)->type & 0xff;
252b5132
RH		 2519 const char *stab_name = bfd_get_stab_name (type_code);
2520 static char buf[10];
2521
2522 if (stab_name == NULL)
2523 {
e60b52c6 2524 sprintf (buf, "(%d)", type_code);
252b5132
RH		 2525 stab_name = buf;
2526 }
2527 ret->type = '-';
2528 ret->stab_type = type_code;
923f08ff
AM		 2529 ret->stab_other = (unsigned) (aout_symbol (symbol)->other & 0xff);
2530 ret->stab_desc = (unsigned) (aout_symbol (symbol)->desc & 0xffff);
252b5132
RH		 2531 ret->stab_name = stab_name;
2532 }
2533}
2534
252b5132 2535void
116c20d2
NC		 2536NAME (aout, print_symbol) (bfd *abfd,
2537 void * afile,
2538 asymbol *symbol,
2539 bfd_print_symbol_type how)
252b5132
RH		 2540{
2541 FILE *file = (FILE *)afile;
2542
923f08ff 2543 switch (how)
252b5132 2544 {
923f08ff
AM		 2545 case bfd_print_symbol_name:
2546 if (symbol->name)
2547 fprintf (file,"%s", symbol->name);
2548 break;
2549 case bfd_print_symbol_more:
2550 fprintf (file,"%4x %2x %2x",
2551 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2552 (unsigned) (aout_symbol (symbol)->other & 0xff),
2553 (unsigned) (aout_symbol (symbol)->type));
2554 break;
2555 case bfd_print_symbol_all:
2556 {
2557 const char *section_name = symbol->section->name;
252b5132 2558
116c20d2 2559 bfd_print_symbol_vandf (abfd, (void *)file, symbol);
252b5132 2560
923f08ff
AM		 2561 fprintf (file," %-5s %04x %02x %02x",
2562 section_name,
2563 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2564 (unsigned) (aout_symbol (symbol)->other & 0xff),
2565 (unsigned) (aout_symbol (symbol)->type & 0xff));
2566 if (symbol->name)
2567 fprintf (file," %s", symbol->name);
2568 }
2569 break;
252b5132 2570 }
252b5132
RH		 2571}
2572
2573/* If we don't have to allocate more than 1MB to hold the generic
2574 symbols, we use the generic minisymbol methord: it's faster, since
2575 it only translates the symbols once, not multiple times. */
2576#define MINISYM_THRESHOLD (1000000 / sizeof (asymbol))
2577
2578/* Read minisymbols. For minisymbols, we use the unmodified a.out
2579 symbols. The minisymbol_to_symbol function translates these into
2580 BFD asymbol structures. */
2581
2582long
116c20d2
NC		 2583NAME (aout, read_minisymbols) (bfd *abfd,
2584 bfd_boolean dynamic,
2585 void * *minisymsp,
2586 unsigned int *sizep)
252b5132
RH		 2587{
2588 if (dynamic)
116c20d2
NC		 2589 /* We could handle the dynamic symbols here as well, but it's
2590 easier to hand them off. */
2591 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
252b5132
RH		 2592
2593 if (! aout_get_external_symbols (abfd))
2594 return -1;
2595
2596 if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2597 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
2598
116c20d2 2599 *minisymsp = (void *) obj_aout_external_syms (abfd);
252b5132
RH		 2600
2601 /* By passing the external symbols back from this routine, we are
2602 giving up control over the memory block. Clear
2603 obj_aout_external_syms, so that we do not try to free it
2604 ourselves. */
2605 obj_aout_external_syms (abfd) = NULL;
2606
2607 *sizep = EXTERNAL_NLIST_SIZE;
2608 return obj_aout_external_sym_count (abfd);
2609}
2610
2611/* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
2612 unmodified a.out symbol. The SYM argument is a structure returned
2613 by bfd_make_empty_symbol, which we fill in here. */
2614
2615asymbol *
116c20d2
NC		 2616NAME (aout, minisymbol_to_symbol) (bfd *abfd,
2617 bfd_boolean dynamic,
2618 const void * minisym,
2619 asymbol *sym)
252b5132
RH		 2620{
2621 if (dynamic
2622 || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2623 return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
2624
2625 memset (sym, 0, sizeof (aout_symbol_type));
2626
2627 /* We call translate_symbol_table to translate a single symbol. */
116c20d2 2628 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 2629 (abfd,
2630 (aout_symbol_type *) sym,
2631 (struct external_nlist *) minisym,
2632 (bfd_size_type) 1,
2633 obj_aout_external_strings (abfd),
2634 obj_aout_external_string_size (abfd),
b34976b6 2635 FALSE)))
252b5132
RH		 2636 return NULL;
2637
2638 return sym;
2639}
2640
f7c33884
NC		 2641/* Provided a BFD, a section and an offset into the section, calculate
2642 and return the name of the source file and the line nearest to the
2643 wanted location. */
252b5132 2644
b34976b6 2645bfd_boolean
116c20d2 2646NAME (aout, find_nearest_line) (bfd *abfd,
116c20d2 2647 asymbol **symbols,
fb167eb2 2648 asection *section,
116c20d2
NC		 2649 bfd_vma offset,
2650 const char **filename_ptr,
2651 const char **functionname_ptr,
fb167eb2
AM		 2652 unsigned int *line_ptr,
2653 unsigned int *disriminator_ptr)
252b5132 2654{
f7c33884 2655 /* Run down the file looking for the filename, function and linenumber. */
252b5132 2656 asymbol **p;
dc810e39
AM		 2657 const char *directory_name = NULL;
2658 const char *main_file_name = NULL;
2659 const char *current_file_name = NULL;
116c20d2 2660 const char *line_file_name = NULL; /* Value of current_file_name at line number. */
dc810e39 2661 const char *line_directory_name = NULL; /* Value of directory_name at line number. */
252b5132
RH		 2662 bfd_vma low_line_vma = 0;
2663 bfd_vma low_func_vma = 0;
2664 asymbol *func = 0;
dc810e39 2665 bfd_size_type filelen, funclen;
252b5132
RH		 2666 char *buf;
2667
2668 *filename_ptr = abfd->filename;
50455f1a 2669 *functionname_ptr = NULL;
252b5132 2670 *line_ptr = 0;
fb167eb2
AM		 2671 if (disriminator_ptr)
2672 *disriminator_ptr = 0;
f7c33884 2673
116c20d2 2674 if (symbols != NULL)
923f08ff
AM		 2675 {
2676 for (p = symbols; *p; p++)
2677 {
2678 aout_symbol_type *q = (aout_symbol_type *) (*p);
2679 next:
2680 switch (q->type)
2681 {
2682 case N_TEXT:
2683 /* If this looks like a file name symbol, and it comes after
2684 the line number we have found so far, but before the
2685 offset, then we have probably not found the right line
2686 number. */
2687 if (q->symbol.value <= offset
2688 && ((q->symbol.value > low_line_vma
2689 && (line_file_name != NULL
2690 || *line_ptr != 0))
2691 || (q->symbol.value > low_func_vma
2692 && func != NULL)))
2693 {
2694 const char *symname;
252b5132 2695
923f08ff
AM		 2696 symname = q->symbol.name;
2697 if (strcmp (symname + strlen (symname) - 2, ".o") == 0)
2698 {
2699 if (q->symbol.value > low_line_vma)
2700 {
2701 *line_ptr = 0;
2702 line_file_name = NULL;
2703 }
2704 if (q->symbol.value > low_func_vma)
2705 func = NULL;
2706 }
2707 }
2708 break;
252b5132 2709
923f08ff
AM		 2710 case N_SO:
2711 /* If this symbol is less than the offset, but greater than
2712 the line number we have found so far, then we have not
2713 found the right line number. */
2714 if (q->symbol.value <= offset)
2715 {
2716 if (q->symbol.value > low_line_vma)
2717 {
2718 *line_ptr = 0;
2719 line_file_name = NULL;
2720 }
2721 if (q->symbol.value > low_func_vma)
2722 func = NULL;
2723 }
252b5132 2724
923f08ff
AM		 2725 main_file_name = current_file_name = q->symbol.name;
2726 /* Look ahead to next symbol to check if that too is an N_SO. */
2727 p++;
2728 if (*p == NULL)
c3864421 2729 goto done;
923f08ff
AM		 2730 q = (aout_symbol_type *) (*p);
2731 if (q->type != (int)N_SO)
2732 goto next;
2733
2734 /* Found a second N_SO First is directory; second is filename. */
2735 directory_name = current_file_name;
2736 main_file_name = current_file_name = q->symbol.name;
2737 if (obj_textsec (abfd) != section)
2738 goto done;
2739 break;
2740 case N_SOL:
2741 current_file_name = q->symbol.name;
2742 break;
252b5132 2743
923f08ff 2744 case N_SLINE:
252b5132 2745
923f08ff
AM		 2746 case N_DSLINE:
2747 case N_BSLINE:
2748 /* We'll keep this if it resolves nearer than the one we have
2749 already. */
2750 if (q->symbol.value >= low_line_vma
2751 && q->symbol.value <= offset)
2752 {
2753 *line_ptr = q->desc;
2754 low_line_vma = q->symbol.value;
2755 line_file_name = current_file_name;
2756 line_directory_name = directory_name;
2757 }
2758 break;
2759 case N_FUN:
2760 {
f7c33884 2761 /* We'll keep this if it is nearer than the one we have already. */
923f08ff 2762 if (q->symbol.value >= low_func_vma &&
f7c33884
NC		 2763 q->symbol.value <= offset)
2764 {
2765 low_func_vma = q->symbol.value;
2766 func = (asymbol *)q;
2767 }
923f08ff
AM		 2768 else if (q->symbol.value > offset)
2769 goto done;
2770 }
2771 break;
2772 }
252b5132 2773 }
252b5132 2774 }
252b5132
RH		 2775
2776 done:
2777 if (*line_ptr != 0)
2778 {
2779 main_file_name = line_file_name;
2780 directory_name = line_directory_name;
2781 }
2782
2783 if (main_file_name == NULL
5af11cab 2784 || IS_ABSOLUTE_PATH (main_file_name)
252b5132
RH		 2785 || directory_name == NULL)
2786 filelen = 0;
2787 else
2788 filelen = strlen (directory_name) + strlen (main_file_name);
f7c33884 2789
252b5132
RH		 2790 if (func == NULL)
2791 funclen = 0;
2792 else
2793 funclen = strlen (bfd_asymbol_name (func));
2794
2795 if (adata (abfd).line_buf != NULL)
2796 free (adata (abfd).line_buf);
f7c33884 2797
252b5132
RH		 2798 if (filelen + funclen == 0)
2799 adata (abfd).line_buf = buf = NULL;
2800 else
2801 {
a50b1753 2802 buf = (char *) bfd_malloc (filelen + funclen + 3);
252b5132
RH		 2803 adata (abfd).line_buf = buf;
2804 if (buf == NULL)
b34976b6 2805 return FALSE;
252b5132
RH		 2806 }
2807
2808 if (main_file_name != NULL)
2809 {
5af11cab 2810 if (IS_ABSOLUTE_PATH (main_file_name) || directory_name == NULL)
252b5132
RH		 2811 *filename_ptr = main_file_name;
2812 else
2813 {
50455f1a
NC		 2814 if (buf == NULL)
2815 /* PR binutils/20891: In a corrupt input file both
2816 main_file_name and directory_name can be empty... */
2817 * filename_ptr = NULL;
2818 else
2819 {
2820 snprintf (buf, filelen + 1, "%s%s", directory_name,
2821 main_file_name);
2822 *filename_ptr = buf;
2823 buf += filelen + 1;
2824 }
252b5132
RH		 2825 }
2826 }
2827
2828 if (func)
2829 {
2830 const char *function = func->name;
dc810e39 2831 char *colon;
252b5132 2832
e82ab856
NC		 2833 if (buf == NULL)
2834 {
2835 /* PR binutils/20892: In a corrupt input file func can be empty. */
2836 * functionname_ptr = NULL;
2837 return TRUE;
2838 }
252b5132
RH		 2839 /* The caller expects a symbol name. We actually have a
2840 function name, without the leading underscore. Put the
2841 underscore back in, so that the caller gets a symbol name. */
2842 if (bfd_get_symbol_leading_char (abfd) == '\0')
2843 strcpy (buf, function);
2844 else
2845 {
2846 buf[0] = bfd_get_symbol_leading_char (abfd);
2847 strcpy (buf + 1, function);
2848 }
f7c33884 2849 /* Have to remove : stuff. */
dc810e39
AM		 2850 colon = strchr (buf, ':');
2851 if (colon != NULL)
2852 *colon = '\0';
252b5132
RH		 2853 *functionname_ptr = buf;
2854 }
2855
b34976b6 2856 return TRUE;
252b5132
RH		 2857}
2858
252b5132 2859int
a6b96beb
AM		 2860NAME (aout, sizeof_headers) (bfd *abfd,
2861 struct bfd_link_info *info ATTRIBUTE_UNUSED)
252b5132 2862{
923f08ff 2863 return adata (abfd).exec_bytes_size;
252b5132
RH		 2864}
2865
2866/* Free all information we have cached for this BFD. We can always
2867 read it again later if we need it. */
2868
b34976b6 2869bfd_boolean
116c20d2 2870NAME (aout, bfd_free_cached_info) (bfd *abfd)
252b5132
RH		 2871{
2872 asection *o;
2873
920581c5
L		 2874 if (bfd_get_format (abfd) != bfd_object
2875 || abfd->tdata.aout_data == NULL)
b34976b6 2876 return TRUE;
252b5132
RH		 2877
2878#define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
2879 BFCI_FREE (obj_aout_symbols (abfd));
2880#ifdef USE_MMAP
2881 obj_aout_external_syms (abfd) = 0;
2882 bfd_free_window (&obj_aout_sym_window (abfd));
2883 bfd_free_window (&obj_aout_string_window (abfd));
2884 obj_aout_external_strings (abfd) = 0;
2885#else
2886 BFCI_FREE (obj_aout_external_syms (abfd));
2887 BFCI_FREE (obj_aout_external_strings (abfd));
2888#endif
116c20d2 2889 for (o = abfd->sections; o != NULL; o = o->next)
252b5132
RH		 2890 BFCI_FREE (o->relocation);
2891#undef BFCI_FREE
2892
b34976b6 2893 return TRUE;
252b5132
RH		 2894}
2895\f
2896/* a.out link code. */
2897
252b5132
RH		 2898/* Routine to create an entry in an a.out link hash table. */
2899
2900struct bfd_hash_entry *
116c20d2
NC		 2901NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry,
2902 struct bfd_hash_table *table,
2903 const char *string)
252b5132
RH		 2904{
2905 struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry;
2906
2907 /* Allocate the structure if it has not already been allocated by a
2908 subclass. */
116c20d2 2909 if (ret == NULL)
a50b1753
NC		 2910 ret = (struct aout_link_hash_entry *) bfd_hash_allocate (table,
2911 sizeof (* ret));
116c20d2
NC		 2912 if (ret == NULL)
2913 return NULL;
252b5132
RH		 2914
2915 /* Call the allocation method of the superclass. */
2916 ret = ((struct aout_link_hash_entry *)
2917 _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2918 table, string));
2919 if (ret)
2920 {
2921 /* Set local fields. */
b34976b6 2922 ret->written = FALSE;
252b5132
RH		 2923 ret->indx = -1;
2924 }
2925
2926 return (struct bfd_hash_entry *) ret;
2927}
2928
2929/* Initialize an a.out link hash table. */
2930
b34976b6 2931bfd_boolean
116c20d2
NC		 2932NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table,
2933 bfd *abfd,
2934 struct bfd_hash_entry *(*newfunc)
2935 (struct bfd_hash_entry *, struct bfd_hash_table *,
66eb6687
AM		 2936 const char *),
2937 unsigned int entsize)
252b5132 2938{
66eb6687 2939 return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize);
252b5132
RH		 2940}
2941
2942/* Create an a.out link hash table. */
2943
2944struct bfd_link_hash_table *
116c20d2 2945NAME (aout, link_hash_table_create) (bfd *abfd)
252b5132
RH		 2946{
2947 struct aout_link_hash_table *ret;
116c20d2 2948 bfd_size_type amt = sizeof (* ret);
252b5132 2949
a50b1753 2950 ret = (struct aout_link_hash_table *) bfd_malloc (amt);
252b5132 2951 if (ret == NULL)
116c20d2 2952 return NULL;
5ed6aba4 2953
66eb6687
AM		 2954 if (!NAME (aout, link_hash_table_init) (ret, abfd,
2955 NAME (aout, link_hash_newfunc),
2956 sizeof (struct aout_link_hash_entry)))
252b5132
RH		 2957 {
2958 free (ret);
116c20d2 2959 return NULL;
252b5132
RH		 2960 }
2961 return &ret->root;
2962}
2963
116c20d2 2964/* Add all symbols from an object file to the hash table. */
252b5132 2965
b34976b6 2966static bfd_boolean
116c20d2 2967aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 2968{
116c20d2
NC		 2969 bfd_boolean (*add_one_symbol)
2970 (struct bfd_link_info *, bfd *, const char *, flagword, asection *,
2971 bfd_vma, const char *, bfd_boolean, bfd_boolean,
2972 struct bfd_link_hash_entry **);
2973 struct external_nlist *syms;
2974 bfd_size_type sym_count;
2975 char *strings;
2976 bfd_boolean copy;
2977 struct aout_link_hash_entry **sym_hash;
2978 struct external_nlist *p;
2979 struct external_nlist *pend;
2980 bfd_size_type amt;
252b5132 2981
116c20d2
NC		 2982 syms = obj_aout_external_syms (abfd);
2983 sym_count = obj_aout_external_sym_count (abfd);
2984 strings = obj_aout_external_strings (abfd);
2985 if (info->keep_memory)
2986 copy = FALSE;
2987 else
2988 copy = TRUE;
252b5132 2989
116c20d2 2990 if (aout_backend_info (abfd)->add_dynamic_symbols != NULL)
252b5132 2991 {
116c20d2
NC		 2992 if (! ((*aout_backend_info (abfd)->add_dynamic_symbols)
2993 (abfd, info, &syms, &sym_count, &strings)))
b34976b6 2994 return FALSE;
252b5132
RH		 2995 }
2996
20c6e70e
MS		 2997 if (sym_count == 0)
2998 return TRUE; /* Nothing to do. */
2999
116c20d2
NC		 3000 /* We keep a list of the linker hash table entries that correspond
3001 to particular symbols. We could just look them up in the hash
3002 table, but keeping the list is more efficient. Perhaps this
3003 should be conditional on info->keep_memory. */
3004 amt = sym_count * sizeof (struct aout_link_hash_entry *);
a50b1753 3005 sym_hash = (struct aout_link_hash_entry **) bfd_alloc (abfd, amt);
20c6e70e 3006 if (sym_hash == NULL)
116c20d2
NC		 3007 return FALSE;
3008 obj_aout_sym_hashes (abfd) = sym_hash;
252b5132 3009
116c20d2
NC		 3010 add_one_symbol = aout_backend_info (abfd)->add_one_symbol;
3011 if (add_one_symbol == NULL)
3012 add_one_symbol = _bfd_generic_link_add_one_symbol;
252b5132 3013
116c20d2
NC		 3014 p = syms;
3015 pend = p + sym_count;
3016 for (; p < pend; p++, sym_hash++)
252b5132 3017 {
116c20d2 3018 int type;
252b5132 3019 const char *name;
116c20d2
NC		 3020 bfd_vma value;
3021 asection *section;
3022 flagword flags;
3023 const char *string;
252b5132 3024
116c20d2 3025 *sym_hash = NULL;
252b5132 3026
116c20d2 3027 type = H_GET_8 (abfd, p->e_type);
252b5132 3028
116c20d2
NC		 3029 /* Ignore debugging symbols. */
3030 if ((type & N_STAB) != 0)
3031 continue;
252b5132 3032
e517df3d 3033 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
531336e3 3034 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3035 return FALSE;
116c20d2
NC		 3036 name = strings + GET_WORD (abfd, p->e_strx);
3037 value = GET_WORD (abfd, p->e_value);
3038 flags = BSF_GLOBAL;
3039 string = NULL;
3040 switch (type)
252b5132 3041 {
116c20d2
NC		 3042 default:
3043 abort ();
f7c33884 3044
116c20d2
NC		 3045 case N_UNDF:
3046 case N_ABS:
3047 case N_TEXT:
3048 case N_DATA:
3049 case N_BSS:
3050 case N_FN_SEQ:
3051 case N_COMM:
3052 case N_SETV:
3053 case N_FN:
3054 /* Ignore symbols that are not externally visible. */
3055 continue;
3056 case N_INDR:
3057 /* Ignore local indirect symbol. */
3058 ++p;
3059 ++sym_hash;
3060 continue;
252b5132 3061
116c20d2
NC		 3062 case N_UNDF | N_EXT:
3063 if (value == 0)
f7c33884 3064 {
116c20d2
NC		 3065 section = bfd_und_section_ptr;
3066 flags = 0;
252b5132
RH		 3067 }
3068 else
3069 section = bfd_com_section_ptr;
3070 break;
3071 case N_ABS | N_EXT:
3072 section = bfd_abs_section_ptr;
3073 break;
3074 case N_TEXT | N_EXT:
3075 section = obj_textsec (abfd);
3076 value -= bfd_get_section_vma (abfd, section);
3077 break;
3078 case N_DATA | N_EXT:
3079 case N_SETV | N_EXT:
3080 /* Treat N_SETV symbols as N_DATA symbol; see comment in
3081 translate_from_native_sym_flags. */
3082 section = obj_datasec (abfd);
3083 value -= bfd_get_section_vma (abfd, section);
3084 break;
3085 case N_BSS | N_EXT:
3086 section = obj_bsssec (abfd);
3087 value -= bfd_get_section_vma (abfd, section);
3088 break;
3089 case N_INDR | N_EXT:
3090 /* An indirect symbol. The next symbol is the symbol
3091 which this one really is. */
39d4daf6
NC		 3092 /* See PR 20925 for a reproducer. */
3093 if (p + 1 >= pend)
3094 return FALSE;
252b5132 3095 ++p;
e517df3d 3096 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3097 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3098 return FALSE;
252b5132
RH		 3099 string = strings + GET_WORD (abfd, p->e_strx);
3100 section = bfd_ind_section_ptr;
3101 flags |= BSF_INDIRECT;
3102 break;
3103 case N_COMM | N_EXT:
3104 section = bfd_com_section_ptr;
3105 break;
3106 case N_SETA: case N_SETA | N_EXT:
3107 section = bfd_abs_section_ptr;
3108 flags |= BSF_CONSTRUCTOR;
3109 break;
3110 case N_SETT: case N_SETT | N_EXT:
3111 section = obj_textsec (abfd);
3112 flags |= BSF_CONSTRUCTOR;
3113 value -= bfd_get_section_vma (abfd, section);
3114 break;
3115 case N_SETD: case N_SETD | N_EXT:
3116 section = obj_datasec (abfd);
3117 flags |= BSF_CONSTRUCTOR;
3118 value -= bfd_get_section_vma (abfd, section);
3119 break;
3120 case N_SETB: case N_SETB | N_EXT:
3121 section = obj_bsssec (abfd);
3122 flags |= BSF_CONSTRUCTOR;
3123 value -= bfd_get_section_vma (abfd, section);
3124 break;
3125 case N_WARNING:
3126 /* A warning symbol. The next symbol is the one to warn
9f400ee9
HPN		 3127 about. If there is no next symbol, just look away. */
3128 if (p + 1 >= pend)
3129 return TRUE;
252b5132
RH		 3130 ++p;
3131 string = name;
e517df3d 3132 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3133 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3134 return FALSE;
252b5132
RH		 3135 name = strings + GET_WORD (abfd, p->e_strx);
3136 section = bfd_und_section_ptr;
3137 flags |= BSF_WARNING;
3138 break;
3139 case N_WEAKU:
3140 section = bfd_und_section_ptr;
3141 flags = BSF_WEAK;
3142 break;
3143 case N_WEAKA:
3144 section = bfd_abs_section_ptr;
3145 flags = BSF_WEAK;
3146 break;
3147 case N_WEAKT:
3148 section = obj_textsec (abfd);
3149 value -= bfd_get_section_vma (abfd, section);
3150 flags = BSF_WEAK;
3151 break;
3152 case N_WEAKD:
3153 section = obj_datasec (abfd);
3154 value -= bfd_get_section_vma (abfd, section);
3155 flags = BSF_WEAK;
3156 break;
3157 case N_WEAKB:
3158 section = obj_bsssec (abfd);
3159 value -= bfd_get_section_vma (abfd, section);
3160 flags = BSF_WEAK;
3161 break;
3162 }
3163
3164 if (! ((*add_one_symbol)
b34976b6 3165 (info, abfd, name, flags, section, value, string, copy, FALSE,
252b5132 3166 (struct bfd_link_hash_entry **) sym_hash)))
b34976b6 3167 return FALSE;
252b5132
RH		 3168
3169 /* Restrict the maximum alignment of a common symbol based on
3170 the architecture, since a.out has no way to represent
3171 alignment requirements of a section in a .o file. FIXME:
3172 This isn't quite right: it should use the architecture of the
3173 output file, not the input files. */
3174 if ((*sym_hash)->root.type == bfd_link_hash_common
3175 && ((*sym_hash)->root.u.c.p->alignment_power >
3176 bfd_get_arch_info (abfd)->section_align_power))
3177 (*sym_hash)->root.u.c.p->alignment_power =
3178 bfd_get_arch_info (abfd)->section_align_power;
3179
3180 /* If this is a set symbol, and we are not building sets, then
3181 it is possible for the hash entry to not have been set. In
3182 such a case, treat the symbol as not globally defined. */
3183 if ((*sym_hash)->root.type == bfd_link_hash_new)
3184 {
3185 BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0);
3186 *sym_hash = NULL;
3187 }
3188
3189 if (type == (N_INDR | N_EXT) || type == N_WARNING)
3190 ++sym_hash;
3191 }
3192
b34976b6 3193 return TRUE;
252b5132 3194}
252b5132 3195
116c20d2
NC		 3196/* Free up the internal symbols read from an a.out file. */
3197
3198static bfd_boolean
3199aout_link_free_symbols (bfd *abfd)
252b5132 3200{
116c20d2
NC		 3201 if (obj_aout_external_syms (abfd) != NULL)
3202 {
3203#ifdef USE_MMAP
3204 bfd_free_window (&obj_aout_sym_window (abfd));
3205#else
3206 free ((void *) obj_aout_external_syms (abfd));
3207#endif
3208 obj_aout_external_syms (abfd) = NULL;
3209 }
3210 if (obj_aout_external_strings (abfd) != NULL)
3211 {
3212#ifdef USE_MMAP
3213 bfd_free_window (&obj_aout_string_window (abfd));
3214#else
3215 free ((void *) obj_aout_external_strings (abfd));
3216#endif
3217 obj_aout_external_strings (abfd) = NULL;
3218 }
3219 return TRUE;
3220}
252b5132 3221
116c20d2 3222/* Add symbols from an a.out object file. */
252b5132 3223
116c20d2
NC		 3224static bfd_boolean
3225aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 3226{
116c20d2
NC		 3227 if (! aout_get_external_symbols (abfd))
3228 return FALSE;
3229 if (! aout_link_add_symbols (abfd, info))
3230 return FALSE;
3231 if (! info->keep_memory)
3232 {
3233 if (! aout_link_free_symbols (abfd))
3234 return FALSE;
3235 }
3236 return TRUE;
3237}
252b5132 3238
116c20d2
NC		 3239/* Look through the internal symbols to see if this object file should
3240 be included in the link. We should include this object file if it
3241 defines any symbols which are currently undefined. If this object
3242 file defines a common symbol, then we may adjust the size of the
3243 known symbol but we do not include the object file in the link
3244 (unless there is some other reason to include it). */
252b5132 3245
116c20d2
NC		 3246static bfd_boolean
3247aout_link_check_ar_symbols (bfd *abfd,
3248 struct bfd_link_info *info,
5d3236ee
DK		 3249 bfd_boolean *pneeded,
3250 bfd **subsbfd)
252b5132 3251{
116c20d2
NC		 3252 struct external_nlist *p;
3253 struct external_nlist *pend;
3254 char *strings;
252b5132 3255
116c20d2 3256 *pneeded = FALSE;
252b5132 3257
116c20d2
NC		 3258 /* Look through all the symbols. */
3259 p = obj_aout_external_syms (abfd);
3260 pend = p + obj_aout_external_sym_count (abfd);
3261 strings = obj_aout_external_strings (abfd);
3262 for (; p < pend; p++)
3263 {
3264 int type = H_GET_8 (abfd, p->e_type);
3265 const char *name;
3266 struct bfd_link_hash_entry *h;
252b5132 3267
116c20d2
NC		 3268 /* Ignore symbols that are not externally visible. This is an
3269 optimization only, as we check the type more thoroughly
3270 below. */
3271 if (((type & N_EXT) == 0
3272 || (type & N_STAB) != 0
3273 || type == N_FN)
3274 && type != N_WEAKA
3275 && type != N_WEAKT
3276 && type != N_WEAKD
3277 && type != N_WEAKB)
3278 {
3279 if (type == N_WARNING
3280 || type == N_INDR)
3281 ++p;
3282 continue;
3283 }
3284
3285 name = strings + GET_WORD (abfd, p->e_strx);
3286 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
3287
3288 /* We are only interested in symbols that are currently
3289 undefined or common. */
3290 if (h == NULL
3291 || (h->type != bfd_link_hash_undefined
3292 && h->type != bfd_link_hash_common))
3293 {
3294 if (type == (N_INDR | N_EXT))
3295 ++p;
3296 continue;
3297 }
3298
3299 if (type == (N_TEXT | N_EXT)
3300 || type == (N_DATA | N_EXT)
3301 || type == (N_BSS | N_EXT)
3302 || type == (N_ABS | N_EXT)
3303 || type == (N_INDR | N_EXT))
3304 {
3305 /* This object file defines this symbol. We must link it
3306 in. This is true regardless of whether the current
3307 definition of the symbol is undefined or common.
3308
3309 If the current definition is common, we have a case in
3310 which we have already seen an object file including:
3311 int a;
3312 and this object file from the archive includes:
3313 int a = 5;
3314 In such a case, whether to include this object is target
3315 dependant for backward compatibility.
3316
3317 FIXME: The SunOS 4.1.3 linker will pull in the archive
3318 element if the symbol is defined in the .data section,
3319 but not if it is defined in the .text section. That
3320 seems a bit crazy to me, and it has not been implemented
3321 yet. However, it might be correct. */
3322 if (h->type == bfd_link_hash_common)
3323 {
3324 int skip = 0;
3325
f88dc410 3326 switch (info->common_skip_ar_symbols)
116c20d2
NC		 3327 {
3328 case bfd_link_common_skip_text:
3329 skip = (type == (N_TEXT | N_EXT));
3330 break;
3331 case bfd_link_common_skip_data:
3332 skip = (type == (N_DATA | N_EXT));
3333 break;
3334 default:
3335 case bfd_link_common_skip_all:
3336 skip = 1;
3337 break;
3338 }
3339
3340 if (skip)
3341 continue;
3342 }
3343
0e144ba7
AM		 3344 if (!(*info->callbacks
3345 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3346 return FALSE;
3347 *pneeded = TRUE;
3348 return TRUE;
3349 }
3350
3351 if (type == (N_UNDF | N_EXT))
3352 {
3353 bfd_vma value;
3354
3355 value = GET_WORD (abfd, p->e_value);
3356 if (value != 0)
3357 {
3358 /* This symbol is common in the object from the archive
3359 file. */
3360 if (h->type == bfd_link_hash_undefined)
3361 {
3362 bfd *symbfd;
3363 unsigned int power;
3364
3365 symbfd = h->u.undef.abfd;
3366 if (symbfd == NULL)
3367 {
3368 /* This symbol was created as undefined from
3369 outside BFD. We assume that we should link
3370 in the object file. This is done for the -u
3371 option in the linker. */
0e144ba7
AM		 3372 if (!(*info->callbacks
3373 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3374 return FALSE;
3375 *pneeded = TRUE;
3376 return TRUE;
3377 }
3378 /* Turn the current link symbol into a common
3379 symbol. It is already on the undefs list. */
3380 h->type = bfd_link_hash_common;
a50b1753 3381 h->u.c.p = (struct bfd_link_hash_common_entry *)
0e144ba7
AM		 3382 bfd_hash_allocate (&info->hash->table,
3383 sizeof (struct bfd_link_hash_common_entry));
116c20d2
NC		 3384 if (h->u.c.p == NULL)
3385 return FALSE;
3386
3387 h->u.c.size = value;
3388
3389 /* FIXME: This isn't quite right. The maximum
3390 alignment of a common symbol should be set by the
3391 architecture of the output file, not of the input
3392 file. */
3393 power = bfd_log2 (value);
3394 if (power > bfd_get_arch_info (abfd)->section_align_power)
3395 power = bfd_get_arch_info (abfd)->section_align_power;
3396 h->u.c.p->alignment_power = power;
3397
3398 h->u.c.p->section = bfd_make_section_old_way (symbfd,
3399 "COMMON");
3400 }
3401 else
3402 {
3403 /* Adjust the size of the common symbol if
3404 necessary. */
3405 if (value > h->u.c.size)
3406 h->u.c.size = value;
3407 }
3408 }
3409 }
3410
3411 if (type == N_WEAKA
3412 || type == N_WEAKT
3413 || type == N_WEAKD
3414 || type == N_WEAKB)
3415 {
3416 /* This symbol is weak but defined. We must pull it in if
3417 the current link symbol is undefined, but we don't want
3418 it if the current link symbol is common. */
3419 if (h->type == bfd_link_hash_undefined)
3420 {
0e144ba7
AM		 3421 if (!(*info->callbacks
3422 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3423 return FALSE;
3424 *pneeded = TRUE;
3425 return TRUE;
3426 }
3427 }
3428 }
3429
3430 /* We do not need this object file. */
3431 return TRUE;
3432}
3433/* Check a single archive element to see if we need to include it in
3434 the link. *PNEEDED is set according to whether this element is
3435 needed in the link or not. This is called from
3436 _bfd_generic_link_add_archive_symbols. */
3437
3438static bfd_boolean
3439aout_link_check_archive_element (bfd *abfd,
3440 struct bfd_link_info *info,
13e570f8
AM		 3441 struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
3442 const char *name ATTRIBUTE_UNUSED,
116c20d2
NC		 3443 bfd_boolean *pneeded)
3444{
0e144ba7
AM		 3445 bfd *oldbfd;
3446 bfd_boolean needed;
5d3236ee 3447
0e144ba7 3448 if (!aout_get_external_symbols (abfd))
116c20d2
NC		 3449 return FALSE;
3450
0e144ba7
AM		 3451 oldbfd = abfd;
3452 if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd))
116c20d2
NC		 3453 return FALSE;
3454
0e144ba7
AM		 3455 needed = *pneeded;
3456 if (needed)
116c20d2 3457 {
5d3236ee
DK		 3458 /* Potentially, the add_archive_element hook may have set a
3459 substitute BFD for us. */
0e144ba7
AM		 3460 if (abfd != oldbfd)
3461 {
3462 if (!info->keep_memory
3463 && !aout_link_free_symbols (oldbfd))
3464 return FALSE;
3465 if (!aout_get_external_symbols (abfd))
3466 return FALSE;
3467 }
3468 if (!aout_link_add_symbols (abfd, info))
116c20d2
NC		 3469 return FALSE;
3470 }
3471
0e144ba7 3472 if (!info->keep_memory || !needed)
116c20d2 3473 {
0e144ba7 3474 if (!aout_link_free_symbols (abfd))
116c20d2
NC		 3475 return FALSE;
3476 }
3477
3478 return TRUE;
3479}
3480
3481/* Given an a.out BFD, add symbols to the global hash table as
3482 appropriate. */
3483
3484bfd_boolean
3485NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
3486{
3487 switch (bfd_get_format (abfd))
3488 {
3489 case bfd_object:
3490 return aout_link_add_object_symbols (abfd, info);
3491 case bfd_archive:
3492 return _bfd_generic_link_add_archive_symbols
3493 (abfd, info, aout_link_check_archive_element);
3494 default:
3495 bfd_set_error (bfd_error_wrong_format);
3496 return FALSE;
3497 }
3498}
3499\f
3500/* A hash table used for header files with N_BINCL entries. */
3501
3502struct aout_link_includes_table
3503{
3504 struct bfd_hash_table root;
3505};
3506
3507/* A linked list of totals that we have found for a particular header
3508 file. */
3509
3510struct aout_link_includes_totals
3511{
3512 struct aout_link_includes_totals *next;
3513 bfd_vma total;
3514};
3515
3516/* An entry in the header file hash table. */
3517
3518struct aout_link_includes_entry
3519{
3520 struct bfd_hash_entry root;
3521 /* List of totals we have found for this file. */
3522 struct aout_link_includes_totals *totals;
3523};
3524
3525/* Look up an entry in an the header file hash table. */
3526
3527#define aout_link_includes_lookup(table, string, create, copy) \
3528 ((struct aout_link_includes_entry *) \
3529 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
3530
3531/* During the final link step we need to pass around a bunch of
3532 information, so we do it in an instance of this structure. */
3533
3534struct aout_final_link_info
3535{
3536 /* General link information. */
3537 struct bfd_link_info *info;
3538 /* Output bfd. */
252b5132
RH		 3539 bfd *output_bfd;
3540 /* Reloc file positions. */
3541 file_ptr treloff, dreloff;
3542 /* File position of symbols. */
3543 file_ptr symoff;
3544 /* String table. */
3545 struct bfd_strtab_hash *strtab;
3546 /* Header file hash table. */
3547 struct aout_link_includes_table includes;
3548 /* A buffer large enough to hold the contents of any section. */
3549 bfd_byte *contents;
3550 /* A buffer large enough to hold the relocs of any section. */
116c20d2 3551 void * relocs;
252b5132
RH		 3552 /* A buffer large enough to hold the symbol map of any input BFD. */
3553 int *symbol_map;
3554 /* A buffer large enough to hold output symbols of any input BFD. */
3555 struct external_nlist *output_syms;
3556};
3557
252b5132
RH		 3558/* The function to create a new entry in the header file hash table. */
3559
3560static struct bfd_hash_entry *
116c20d2
NC		 3561aout_link_includes_newfunc (struct bfd_hash_entry *entry,
3562 struct bfd_hash_table *table,
3563 const char *string)
252b5132
RH		 3564{
3565 struct aout_link_includes_entry *ret =
3566 (struct aout_link_includes_entry *) entry;
3567
3568 /* Allocate the structure if it has not already been allocated by a
3569 subclass. */
116c20d2 3570 if (ret == NULL)
a50b1753
NC		 3571 ret = (struct aout_link_includes_entry *)
3572 bfd_hash_allocate (table, sizeof (* ret));
116c20d2
NC		 3573 if (ret == NULL)
3574 return NULL;
252b5132
RH		 3575
3576 /* Call the allocation method of the superclass. */
3577 ret = ((struct aout_link_includes_entry *)
3578 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
3579 if (ret)
3580 {
3581 /* Set local fields. */
3582 ret->totals = NULL;
3583 }
3584
3585 return (struct bfd_hash_entry *) ret;
3586}
3587
116c20d2
NC		 3588/* Write out a symbol that was not associated with an a.out input
3589 object. */
252b5132 3590
116c20d2 3591static bfd_boolean
7686d77d 3592aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data)
252b5132 3593{
7686d77d 3594 struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh;
57402f1e 3595 struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data;
116c20d2
NC		 3596 bfd *output_bfd;
3597 int type;
3598 bfd_vma val;
3599 struct external_nlist outsym;
3600 bfd_size_type indx;
3601 bfd_size_type amt;
252b5132 3602
116c20d2
NC		 3603 if (h->root.type == bfd_link_hash_warning)
3604 {
3605 h = (struct aout_link_hash_entry *) h->root.u.i.link;
3606 if (h->root.type == bfd_link_hash_new)
3607 return TRUE;
3608 }
252b5132 3609
57402f1e 3610 output_bfd = flaginfo->output_bfd;
252b5132 3611
116c20d2 3612 if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
252b5132 3613 {
116c20d2 3614 if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
57402f1e 3615 (output_bfd, flaginfo->info, h)))
252b5132 3616 {
116c20d2
NC		 3617 /* FIXME: No way to handle errors. */
3618 abort ();
252b5132 3619 }
116c20d2 3620 }
252b5132 3621
116c20d2
NC		 3622 if (h->written)
3623 return TRUE;
252b5132 3624
116c20d2 3625 h->written = TRUE;
252b5132 3626
116c20d2
NC		 3627 /* An indx of -2 means the symbol must be written. */
3628 if (h->indx != -2
57402f1e
NC		 3629 && (flaginfo->info->strip == strip_all
3630 || (flaginfo->info->strip == strip_some
3631 && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string,
116c20d2
NC		 3632 FALSE, FALSE) == NULL)))
3633 return TRUE;
252b5132 3634
116c20d2 3635 switch (h->root.type)
252b5132 3636 {
116c20d2
NC		 3637 default:
3638 case bfd_link_hash_warning:
3639 abort ();
3640 /* Avoid variable not initialized warnings. */
3641 return TRUE;
3642 case bfd_link_hash_new:
3643 /* This can happen for set symbols when sets are not being
3644 built. */
3645 return TRUE;
3646 case bfd_link_hash_undefined:
3647 type = N_UNDF | N_EXT;
3648 val = 0;
3649 break;
3650 case bfd_link_hash_defined:
3651 case bfd_link_hash_defweak:
3652 {
3653 asection *sec;
252b5132 3654
116c20d2
NC		 3655 sec = h->root.u.def.section->output_section;
3656 BFD_ASSERT (bfd_is_abs_section (sec)
3657 || sec->owner == output_bfd);
3658 if (sec == obj_textsec (output_bfd))
3659 type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
3660 else if (sec == obj_datasec (output_bfd))
3661 type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
3662 else if (sec == obj_bsssec (output_bfd))
3663 type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
3664 else
3665 type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
3666 type |= N_EXT;
3667 val = (h->root.u.def.value
3668 + sec->vma
3669 + h->root.u.def.section->output_offset);
3670 }
3671 break;
3672 case bfd_link_hash_common:
3673 type = N_UNDF | N_EXT;
3674 val = h->root.u.c.size;
3675 break;
3676 case bfd_link_hash_undefweak:
3677 type = N_WEAKU;
3678 val = 0;
c38eb2a6 3679 break;
116c20d2
NC		 3680 case bfd_link_hash_indirect:
3681 /* We ignore these symbols, since the indirected symbol is
3682 already in the hash table. */
3683 return TRUE;
3684 }
252b5132 3685
116c20d2
NC		 3686 H_PUT_8 (output_bfd, type, outsym.e_type);
3687 H_PUT_8 (output_bfd, 0, outsym.e_other);
3688 H_PUT_16 (output_bfd, 0, outsym.e_desc);
57402f1e 3689 indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string,
116c20d2
NC		 3690 FALSE);
3691 if (indx == - (bfd_size_type) 1)
3692 /* FIXME: No way to handle errors. */
3693 abort ();
252b5132 3694
116c20d2
NC		 3695 PUT_WORD (output_bfd, indx, outsym.e_strx);
3696 PUT_WORD (output_bfd, val, outsym.e_value);
252b5132 3697
116c20d2 3698 amt = EXTERNAL_NLIST_SIZE;
57402f1e 3699 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0
116c20d2
NC		 3700 || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt)
3701 /* FIXME: No way to handle errors. */
3702 abort ();
252b5132 3703
57402f1e 3704 flaginfo->symoff += EXTERNAL_NLIST_SIZE;
116c20d2
NC		 3705 h->indx = obj_aout_external_sym_count (output_bfd);
3706 ++obj_aout_external_sym_count (output_bfd);
252b5132 3707
116c20d2
NC		 3708 return TRUE;
3709}
252b5132 3710
116c20d2 3711/* Handle a link order which is supposed to generate a reloc. */
252b5132 3712
116c20d2 3713static bfd_boolean
57402f1e 3714aout_link_reloc_link_order (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3715 asection *o,
3716 struct bfd_link_order *p)
3717{
3718 struct bfd_link_order_reloc *pr;
3719 int r_index;
3720 int r_extern;
3721 reloc_howto_type *howto;
3722 file_ptr *reloff_ptr = NULL;
3723 struct reloc_std_external srel;
3724 struct reloc_ext_external erel;
3725 void * rel_ptr;
3726 bfd_size_type amt;
252b5132 3727
116c20d2 3728 pr = p->u.reloc.p;
252b5132 3729
116c20d2
NC		 3730 if (p->type == bfd_section_reloc_link_order)
3731 {
3732 r_extern = 0;
3733 if (bfd_is_abs_section (pr->u.section))
3734 r_index = N_ABS | N_EXT;
3735 else
3736 {
57402f1e 3737 BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd);
116c20d2
NC		 3738 r_index = pr->u.section->target_index;
3739 }
3740 }
3741 else
3742 {
3743 struct aout_link_hash_entry *h;
252b5132 3744
116c20d2
NC		 3745 BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
3746 r_extern = 1;
3747 h = ((struct aout_link_hash_entry *)
57402f1e 3748 bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info,
116c20d2
NC		 3749 pr->u.name, FALSE, FALSE, TRUE));
3750 if (h != NULL
3751 && h->indx >= 0)
3752 r_index = h->indx;
3753 else if (h != NULL)
3754 {
3755 /* We decided to strip this symbol, but it turns out that we
3756 can't. Note that we lose the other and desc information
3757 here. I don't think that will ever matter for a global
3758 symbol. */
3759 h->indx = -2;
3760 h->written = FALSE;
57402f1e 3761 if (!aout_link_write_other_symbol (&h->root.root, flaginfo))
116c20d2
NC		 3762 return FALSE;
3763 r_index = h->indx;
3764 }
3765 else
3766 {
1a72702b
AM		 3767 (*flaginfo->info->callbacks->unattached_reloc)
3768 (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0);
116c20d2
NC		 3769 r_index = 0;
3770 }
3771 }
252b5132 3772
57402f1e 3773 howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc);
116c20d2 3774 if (howto == 0)
252b5132 3775 {
116c20d2
NC		 3776 bfd_set_error (bfd_error_bad_value);
3777 return FALSE;
252b5132
RH		 3778 }
3779
57402f1e
NC		 3780 if (o == obj_textsec (flaginfo->output_bfd))
3781 reloff_ptr = &flaginfo->treloff;
3782 else if (o == obj_datasec (flaginfo->output_bfd))
3783 reloff_ptr = &flaginfo->dreloff;
116c20d2
NC		 3784 else
3785 abort ();
3786
57402f1e 3787 if (obj_reloc_entry_size (flaginfo->output_bfd) == RELOC_STD_SIZE)
252b5132 3788 {
116c20d2 3789#ifdef MY_put_reloc
57402f1e 3790 MY_put_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset, howto,
116c20d2
NC		 3791 &srel);
3792#else
3793 {
3794 int r_pcrel;
3795 int r_baserel;
3796 int r_jmptable;
3797 int r_relative;
3798 int r_length;
252b5132 3799
116c20d2
NC		 3800 r_pcrel = (int) howto->pc_relative;
3801 r_baserel = (howto->type & 8) != 0;
3802 r_jmptable = (howto->type & 16) != 0;
3803 r_relative = (howto->type & 32) != 0;
3804 r_length = howto->size;
252b5132 3805
57402f1e
NC		 3806 PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address);
3807 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3808 {
3809 srel.r_index[0] = r_index >> 16;
3810 srel.r_index[1] = r_index >> 8;
3811 srel.r_index[2] = r_index;
3812 srel.r_type[0] =
3813 ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
3814 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
3815 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
3816 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
3817 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
3818 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
3819 }
3820 else
3821 {
3822 srel.r_index[2] = r_index >> 16;
3823 srel.r_index[1] = r_index >> 8;
3824 srel.r_index[0] = r_index;
3825 srel.r_type[0] =
3826 ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
3827 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
3828 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
3829 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
3830 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
3831 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
3832 }
3833 }
3834#endif
3835 rel_ptr = (void *) &srel;
252b5132 3836
116c20d2
NC		 3837 /* We have to write the addend into the object file, since
3838 standard a.out relocs are in place. It would be more
3839 reliable if we had the current contents of the file here,
3840 rather than assuming zeroes, but we can't read the file since
3841 it was opened using bfd_openw. */
3842 if (pr->addend != 0)
252b5132 3843 {
116c20d2
NC		 3844 bfd_size_type size;
3845 bfd_reloc_status_type r;
3846 bfd_byte *buf;
3847 bfd_boolean ok;
3848
3849 size = bfd_get_reloc_size (howto);
a50b1753 3850 buf = (bfd_byte *) bfd_zmalloc (size);
6346d5ca 3851 if (buf == NULL && size != 0)
116c20d2 3852 return FALSE;
57402f1e 3853 r = MY_relocate_contents (howto, flaginfo->output_bfd,
116c20d2
NC		 3854 (bfd_vma) pr->addend, buf);
3855 switch (r)
252b5132 3856 {
116c20d2
NC		 3857 case bfd_reloc_ok:
3858 break;
3859 default:
3860 case bfd_reloc_outofrange:
3861 abort ();
3862 case bfd_reloc_overflow:
1a72702b
AM		 3863 (*flaginfo->info->callbacks->reloc_overflow)
3864 (flaginfo->info, NULL,
3865 (p->type == bfd_section_reloc_link_order
3866 ? bfd_section_name (flaginfo->output_bfd,
3867 pr->u.section)
3868 : pr->u.name),
3869 howto->name, pr->addend, NULL, NULL, (bfd_vma) 0);
116c20d2 3870 break;
252b5132 3871 }
57402f1e 3872 ok = bfd_set_section_contents (flaginfo->output_bfd, o, (void *) buf,
116c20d2
NC		 3873 (file_ptr) p->offset, size);
3874 free (buf);
3875 if (! ok)
3876 return FALSE;
252b5132
RH		 3877 }
3878 }
116c20d2 3879 else
252b5132 3880 {
116c20d2 3881#ifdef MY_put_ext_reloc
57402f1e 3882 MY_put_ext_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset,
116c20d2
NC		 3883 howto, &erel, pr->addend);
3884#else
57402f1e 3885 PUT_WORD (flaginfo->output_bfd, p->offset, erel.r_address);
252b5132 3886
57402f1e 3887 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3888 {
3889 erel.r_index[0] = r_index >> 16;
3890 erel.r_index[1] = r_index >> 8;
3891 erel.r_index[2] = r_index;
3892 erel.r_type[0] =
3893 ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
3894 | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG));
3895 }
3896 else
3897 {
3898 erel.r_index[2] = r_index >> 16;
3899 erel.r_index[1] = r_index >> 8;
3900 erel.r_index[0] = r_index;
3901 erel.r_type[0] =
3902 (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
3903 | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
3904 }
252b5132 3905
57402f1e 3906 PUT_WORD (flaginfo->output_bfd, (bfd_vma) pr->addend, erel.r_addend);
116c20d2 3907#endif /* MY_put_ext_reloc */
252b5132 3908
116c20d2 3909 rel_ptr = (void *) &erel;
252b5132 3910 }
252b5132 3911
57402f1e
NC		 3912 amt = obj_reloc_entry_size (flaginfo->output_bfd);
3913 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
3914 || bfd_bwrite (rel_ptr, amt, flaginfo->output_bfd) != amt)
116c20d2 3915 return FALSE;
252b5132 3916
57402f1e 3917 *reloff_ptr += obj_reloc_entry_size (flaginfo->output_bfd);
252b5132 3918
116c20d2
NC		 3919 /* Assert that the relocs have not run into the symbols, and that n
3920 the text relocs have not run into the data relocs. */
57402f1e
NC		 3921 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
3922 && (reloff_ptr != &flaginfo->treloff
116c20d2 3923 || (*reloff_ptr
57402f1e 3924 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 3925
3926 return TRUE;
252b5132
RH		 3927}
3928
116c20d2 3929/* Get the section corresponding to a reloc index. */
252b5132 3930
116c20d2
NC		 3931static INLINE asection *
3932aout_reloc_index_to_section (bfd *abfd, int indx)
252b5132 3933{
116c20d2 3934 switch (indx & N_TYPE)
252b5132 3935 {
116c20d2
NC		 3936 case N_TEXT: return obj_textsec (abfd);
3937 case N_DATA: return obj_datasec (abfd);
3938 case N_BSS: return obj_bsssec (abfd);
3939 case N_ABS:
3940 case N_UNDF: return bfd_abs_section_ptr;
3941 default: abort ();
252b5132 3942 }
116c20d2 3943 return NULL;
252b5132
RH		 3944}
3945
116c20d2 3946/* Relocate an a.out section using standard a.out relocs. */
252b5132 3947
b34976b6 3948static bfd_boolean
57402f1e 3949aout_link_input_section_std (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3950 bfd *input_bfd,
3951 asection *input_section,
3952 struct reloc_std_external *relocs,
3953 bfd_size_type rel_size,
3954 bfd_byte *contents)
252b5132 3955{
116c20d2
NC		 3956 bfd_boolean (*check_dynamic_reloc)
3957 (struct bfd_link_info *, bfd *, asection *,
3958 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
3959 bfd_vma *);
252b5132 3960 bfd *output_bfd;
116c20d2
NC		 3961 bfd_boolean relocatable;
3962 struct external_nlist *syms;
252b5132 3963 char *strings;
116c20d2 3964 struct aout_link_hash_entry **sym_hashes;
252b5132 3965 int *symbol_map;
116c20d2
NC		 3966 bfd_size_type reloc_count;
3967 struct reloc_std_external *rel;
3968 struct reloc_std_external *rel_end;
252b5132 3969
57402f1e 3970 output_bfd = flaginfo->output_bfd;
116c20d2 3971 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
252b5132 3972
116c20d2
NC		 3973 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE);
3974 BFD_ASSERT (input_bfd->xvec->header_byteorder
3975 == output_bfd->xvec->header_byteorder);
252b5132 3976
0e1862bb 3977 relocatable = bfd_link_relocatable (flaginfo->info);
116c20d2
NC		 3978 syms = obj_aout_external_syms (input_bfd);
3979 strings = obj_aout_external_strings (input_bfd);
3980 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 3981 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 3982
3983 reloc_count = rel_size / RELOC_STD_SIZE;
3984 rel = relocs;
3985 rel_end = rel + reloc_count;
3986 for (; rel < rel_end; rel++)
252b5132 3987 {
116c20d2
NC		 3988 bfd_vma r_addr;
3989 int r_index;
3990 int r_extern;
3991 int r_pcrel;
3992 int r_baserel = 0;
3993 reloc_howto_type *howto;
3994 struct aout_link_hash_entry *h = NULL;
3995 bfd_vma relocation;
3996 bfd_reloc_status_type r;
252b5132 3997
116c20d2 3998 r_addr = GET_SWORD (input_bfd, rel->r_address);
252b5132 3999
116c20d2
NC		 4000#ifdef MY_reloc_howto
4001 howto = MY_reloc_howto (input_bfd, rel, r_index, r_extern, r_pcrel);
4002#else
4003 {
4004 int r_jmptable;
4005 int r_relative;
4006 int r_length;
4007 unsigned int howto_idx;
252b5132 4008
116c20d2
NC		 4009 if (bfd_header_big_endian (input_bfd))
4010 {
4011 r_index = (((unsigned int) rel->r_index[0] << 16)
4012 | ((unsigned int) rel->r_index[1] << 8)
4013 | rel->r_index[2]);
4014 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
4015 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
4016 r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
4017 r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
4018 r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
4019 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
4020 >> RELOC_STD_BITS_LENGTH_SH_BIG);
4021 }
4022 else
4023 {
4024 r_index = (((unsigned int) rel->r_index[2] << 16)
4025 | ((unsigned int) rel->r_index[1] << 8)
4026 | rel->r_index[0]);
4027 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
4028 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
4029 r_baserel = (0 != (rel->r_type[0]
4030 & RELOC_STD_BITS_BASEREL_LITTLE));
4031 r_jmptable= (0 != (rel->r_type[0]
4032 & RELOC_STD_BITS_JMPTABLE_LITTLE));
4033 r_relative= (0 != (rel->r_type[0]
4034 & RELOC_STD_BITS_RELATIVE_LITTLE));
4035 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
4036 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
4037 }
252b5132 4038
116c20d2
NC		 4039 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
4040 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 4041 if (howto_idx < TABLE_SIZE (howto_table_std))
4042 howto = howto_table_std + howto_idx;
4043 else
4044 howto = NULL;
116c20d2
NC		 4045 }
4046#endif
252b5132 4047
ad756e3f
AM		 4048 if (howto == NULL)
4049 {
57402f1e 4050 (*flaginfo->info->callbacks->einfo)
ad756e3f
AM		 4051 (_("%P: %B: unexpected relocation type\n"), input_bfd);
4052 bfd_set_error (bfd_error_bad_value);
4053 return FALSE;
4054 }
4055
116c20d2 4056 if (relocatable)
252b5132 4057 {
116c20d2
NC		 4058 /* We are generating a relocatable output file, and must
4059 modify the reloc accordingly. */
4060 if (r_extern)
252b5132 4061 {
116c20d2
NC		 4062 /* If we know the symbol this relocation is against,
4063 convert it into a relocation against a section. This
4064 is what the native linker does. */
4065 h = sym_hashes[r_index];
4066 if (h != NULL
4067 && (h->root.type == bfd_link_hash_defined
4068 || h->root.type == bfd_link_hash_defweak))
252b5132 4069 {
252b5132
RH		 4070 asection *output_section;
4071
116c20d2
NC		 4072 /* Change the r_extern value. */
4073 if (bfd_header_big_endian (output_bfd))
4074 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_BIG;
4075 else
4076 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE;
252b5132 4077
116c20d2
NC		 4078 /* Compute a new r_index. */
4079 output_section = h->root.u.def.section->output_section;
252b5132 4080 if (output_section == obj_textsec (output_bfd))
116c20d2 4081 r_index = N_TEXT;
252b5132 4082 else if (output_section == obj_datasec (output_bfd))
116c20d2 4083 r_index = N_DATA;
252b5132 4084 else if (output_section == obj_bsssec (output_bfd))
116c20d2 4085 r_index = N_BSS;
252b5132 4086 else
116c20d2 4087 r_index = N_ABS;
252b5132 4088
116c20d2
NC		 4089 /* Add the symbol value and the section VMA to the
4090 addend stored in the contents. */
4091 relocation = (h->root.u.def.value
4092 + output_section->vma
4093 + h->root.u.def.section->output_offset);
252b5132 4094 }
116c20d2 4095 else
252b5132 4096 {
116c20d2
NC		 4097 /* We must change r_index according to the symbol
4098 map. */
4099 r_index = symbol_map[r_index];
252b5132 4100
116c20d2 4101 if (r_index == -1)
252b5132 4102 {
116c20d2 4103 if (h != NULL)
252b5132 4104 {
116c20d2
NC		 4105 /* We decided to strip this symbol, but it
4106 turns out that we can't. Note that we
4107 lose the other and desc information here.
4108 I don't think that will ever matter for a
4109 global symbol. */
4110 if (h->indx < 0)
252b5132 4111 {
116c20d2
NC		 4112 h->indx = -2;
4113 h->written = FALSE;
7686d77d 4114 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4115 flaginfo))
116c20d2 4116 return FALSE;
252b5132 4117 }
116c20d2
NC		 4118 r_index = h->indx;
4119 }
4120 else
4121 {
4122 const char *name;
4123
4124 name = strings + GET_WORD (input_bfd,
4125 syms[r_index].e_strx);
1a72702b
AM		 4126 (*flaginfo->info->callbacks->unattached_reloc)
4127 (flaginfo->info, name,
4128 input_bfd, input_section, r_addr);
116c20d2 4129 r_index = 0;
252b5132
RH		 4130 }
4131 }
116c20d2
NC		 4132
4133 relocation = 0;
252b5132
RH		 4134 }
4135
116c20d2
NC		 4136 /* Write out the new r_index value. */
4137 if (bfd_header_big_endian (output_bfd))
252b5132 4138 {
116c20d2
NC		 4139 rel->r_index[0] = r_index >> 16;
4140 rel->r_index[1] = r_index >> 8;
4141 rel->r_index[2] = r_index;
252b5132
RH		 4142 }
4143 else
4144 {
116c20d2
NC		 4145 rel->r_index[2] = r_index >> 16;
4146 rel->r_index[1] = r_index >> 8;
4147 rel->r_index[0] = r_index;
252b5132
RH		 4148 }
4149 }
252b5132 4150 else
116c20d2
NC		 4151 {
4152 asection *section;
252b5132 4153
116c20d2
NC		 4154 /* This is a relocation against a section. We must
4155 adjust by the amount that the section moved. */
4156 section = aout_reloc_index_to_section (input_bfd, r_index);
4157 relocation = (section->output_section->vma
4158 + section->output_offset
4159 - section->vma);
4160 }
252b5132 4161
116c20d2
NC		 4162 /* Change the address of the relocation. */
4163 PUT_WORD (output_bfd,
4164 r_addr + input_section->output_offset,
4165 rel->r_address);
252b5132 4166
116c20d2
NC		 4167 /* Adjust a PC relative relocation by removing the reference
4168 to the original address in the section and including the
4169 reference to the new address. */
4170 if (r_pcrel)
4171 relocation -= (input_section->output_section->vma
4172 + input_section->output_offset
4173 - input_section->vma);
e92d460e 4174
116c20d2
NC		 4175#ifdef MY_relocatable_reloc
4176 MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
4177#endif
252b5132 4178
116c20d2
NC		 4179 if (relocation == 0)
4180 r = bfd_reloc_ok;
4181 else
4182 r = MY_relocate_contents (howto,
4183 input_bfd, relocation,
4184 contents + r_addr);
252b5132 4185 }
116c20d2
NC		 4186 else
4187 {
4188 bfd_boolean hundef;
252b5132 4189
116c20d2
NC		 4190 /* We are generating an executable, and must do a full
4191 relocation. */
4192 hundef = FALSE;
252b5132 4193
116c20d2
NC		 4194 if (r_extern)
4195 {
4196 h = sym_hashes[r_index];
252b5132 4197
116c20d2
NC		 4198 if (h != NULL
4199 && (h->root.type == bfd_link_hash_defined
4200 || h->root.type == bfd_link_hash_defweak))
4201 {
4202 relocation = (h->root.u.def.value
4203 + h->root.u.def.section->output_section->vma
4204 + h->root.u.def.section->output_offset);
4205 }
4206 else if (h != NULL
4207 && h->root.type == bfd_link_hash_undefweak)
4208 relocation = 0;
4209 else
4210 {
4211 hundef = TRUE;
4212 relocation = 0;
4213 }
4214 }
4215 else
4216 {
4217 asection *section;
252b5132 4218
116c20d2
NC		 4219 section = aout_reloc_index_to_section (input_bfd, r_index);
4220 relocation = (section->output_section->vma
4221 + section->output_offset
4222 - section->vma);
4223 if (r_pcrel)
4224 relocation += input_section->vma;
4225 }
252b5132 4226
116c20d2
NC		 4227 if (check_dynamic_reloc != NULL)
4228 {
4229 bfd_boolean skip;
252b5132 4230
116c20d2 4231 if (! ((*check_dynamic_reloc)
57402f1e 4232 (flaginfo->info, input_bfd, input_section, h,
116c20d2
NC		 4233 (void *) rel, contents, &skip, &relocation)))
4234 return FALSE;
4235 if (skip)
4236 continue;
4237 }
252b5132 4238
116c20d2
NC		 4239 /* Now warn if a global symbol is undefined. We could not
4240 do this earlier, because check_dynamic_reloc might want
4241 to skip this reloc. */
0e1862bb 4242 if (hundef && ! bfd_link_pic (flaginfo->info) && ! r_baserel)
116c20d2
NC		 4243 {
4244 const char *name;
252b5132 4245
116c20d2
NC		 4246 if (h != NULL)
4247 name = h->root.root.string;
4248 else
4249 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4250 (*flaginfo->info->callbacks->undefined_symbol)
4251 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
116c20d2 4252 }
252b5132 4253
116c20d2
NC		 4254 r = MY_final_link_relocate (howto,
4255 input_bfd, input_section,
4256 contents, r_addr, relocation,
4257 (bfd_vma) 0);
252b5132 4258 }
252b5132 4259
116c20d2
NC		 4260 if (r != bfd_reloc_ok)
4261 {
4262 switch (r)
4263 {
4264 default:
4265 case bfd_reloc_outofrange:
4266 abort ();
4267 case bfd_reloc_overflow:
4268 {
4269 const char *name;
252b5132 4270
116c20d2
NC		 4271 if (h != NULL)
4272 name = NULL;
4273 else if (r_extern)
4274 name = strings + GET_WORD (input_bfd,
4275 syms[r_index].e_strx);
4276 else
4277 {
4278 asection *s;
252b5132 4279
116c20d2
NC		 4280 s = aout_reloc_index_to_section (input_bfd, r_index);
4281 name = bfd_section_name (input_bfd, s);
4282 }
1a72702b
AM		 4283 (*flaginfo->info->callbacks->reloc_overflow)
4284 (flaginfo->info, (h ? &h->root : NULL), name, howto->name,
4285 (bfd_vma) 0, input_bfd, input_section, r_addr);
116c20d2
NC		 4286 }
4287 break;
4288 }
4289 }
252b5132
RH		 4290 }
4291
b34976b6 4292 return TRUE;
252b5132
RH		 4293}
4294
116c20d2 4295/* Relocate an a.out section using extended a.out relocs. */
252b5132 4296
b34976b6 4297static bfd_boolean
57402f1e 4298aout_link_input_section_ext (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4299 bfd *input_bfd,
4300 asection *input_section,
4301 struct reloc_ext_external *relocs,
4302 bfd_size_type rel_size,
4303 bfd_byte *contents)
252b5132 4304{
b34976b6 4305 bfd_boolean (*check_dynamic_reloc)
116c20d2
NC		 4306 (struct bfd_link_info *, bfd *, asection *,
4307 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
4308 bfd_vma *);
252b5132 4309 bfd *output_bfd;
1049f94e 4310 bfd_boolean relocatable;
252b5132
RH		 4311 struct external_nlist *syms;
4312 char *strings;
4313 struct aout_link_hash_entry **sym_hashes;
4314 int *symbol_map;
4315 bfd_size_type reloc_count;
116c20d2
NC		 4316 struct reloc_ext_external *rel;
4317 struct reloc_ext_external *rel_end;
252b5132 4318
57402f1e 4319 output_bfd = flaginfo->output_bfd;
252b5132
RH		 4320 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
4321
116c20d2 4322 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_EXT_SIZE);
252b5132
RH		 4323 BFD_ASSERT (input_bfd->xvec->header_byteorder
4324 == output_bfd->xvec->header_byteorder);
4325
0e1862bb 4326 relocatable = bfd_link_relocatable (flaginfo->info);
252b5132
RH		 4327 syms = obj_aout_external_syms (input_bfd);
4328 strings = obj_aout_external_strings (input_bfd);
4329 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4330 symbol_map = flaginfo->symbol_map;
252b5132 4331
116c20d2 4332 reloc_count = rel_size / RELOC_EXT_SIZE;
252b5132
RH		 4333 rel = relocs;
4334 rel_end = rel + reloc_count;
4335 for (; rel < rel_end; rel++)
4336 {
4337 bfd_vma r_addr;
4338 int r_index;
4339 int r_extern;
116c20d2
NC		 4340 unsigned int r_type;
4341 bfd_vma r_addend;
252b5132 4342 struct aout_link_hash_entry *h = NULL;
116c20d2 4343 asection *r_section = NULL;
252b5132 4344 bfd_vma relocation;
252b5132
RH		 4345
4346 r_addr = GET_SWORD (input_bfd, rel->r_address);
4347
116c20d2
NC		 4348 if (bfd_header_big_endian (input_bfd))
4349 {
4350 r_index = (((unsigned int) rel->r_index[0] << 16)
4351 | ((unsigned int) rel->r_index[1] << 8)
4352 | rel->r_index[2]);
4353 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
4354 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
4355 >> RELOC_EXT_BITS_TYPE_SH_BIG);
4356 }
4357 else
4358 {
4359 r_index = (((unsigned int) rel->r_index[2] << 16)
4360 | ((unsigned int) rel->r_index[1] << 8)
4361 | rel->r_index[0]);
4362 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
4363 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
4364 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
4365 }
252b5132 4366
116c20d2 4367 r_addend = GET_SWORD (input_bfd, rel->r_addend);
252b5132 4368
ad756e3f
AM		 4369 if (r_type >= TABLE_SIZE (howto_table_ext))
4370 {
57402f1e 4371 (*flaginfo->info->callbacks->einfo)
ad756e3f
AM		 4372 (_("%P: %B: unexpected relocation type\n"), input_bfd);
4373 bfd_set_error (bfd_error_bad_value);
4374 return FALSE;
4375 }
252b5132 4376
1049f94e 4377 if (relocatable)
252b5132 4378 {
1049f94e 4379 /* We are generating a relocatable output file, and must
252b5132 4380 modify the reloc accordingly. */
116c20d2
NC		 4381 if (r_extern
4382 || r_type == (unsigned int) RELOC_BASE10
4383 || r_type == (unsigned int) RELOC_BASE13
4384 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 4385 {
4386 /* If we know the symbol this relocation is against,
4387 convert it into a relocation against a section. This
4388 is what the native linker does. */
116c20d2
NC		 4389 if (r_type == (unsigned int) RELOC_BASE10
4390 || r_type == (unsigned int) RELOC_BASE13
4391 || r_type == (unsigned int) RELOC_BASE22)
4392 h = NULL;
4393 else
4394 h = sym_hashes[r_index];
4395 if (h != NULL
252b5132
RH		 4396 && (h->root.type == bfd_link_hash_defined
4397 || h->root.type == bfd_link_hash_defweak))
4398 {
4399 asection *output_section;
4400
4401 /* Change the r_extern value. */
4402 if (bfd_header_big_endian (output_bfd))
116c20d2 4403 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_BIG;
252b5132 4404 else
116c20d2 4405 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE;
252b5132
RH		 4406
4407 /* Compute a new r_index. */
4408 output_section = h->root.u.def.section->output_section;
4409 if (output_section == obj_textsec (output_bfd))
4410 r_index = N_TEXT;
4411 else if (output_section == obj_datasec (output_bfd))
4412 r_index = N_DATA;
4413 else if (output_section == obj_bsssec (output_bfd))
4414 r_index = N_BSS;
4415 else
4416 r_index = N_ABS;
4417
4418 /* Add the symbol value and the section VMA to the
116c20d2 4419 addend. */
252b5132
RH		 4420 relocation = (h->root.u.def.value
4421 + output_section->vma
4422 + h->root.u.def.section->output_offset);
116c20d2
NC		 4423
4424 /* Now RELOCATION is the VMA of the final
4425 destination. If this is a PC relative reloc,
4426 then ADDEND is the negative of the source VMA.
4427 We want to set ADDEND to the difference between
4428 the destination VMA and the source VMA, which
4429 means we must adjust RELOCATION by the change in
4430 the source VMA. This is done below. */
252b5132
RH		 4431 }
4432 else
4433 {
4434 /* We must change r_index according to the symbol
4435 map. */
4436 r_index = symbol_map[r_index];
4437
4438 if (r_index == -1)
4439 {
4440 if (h != NULL)
4441 {
4442 /* We decided to strip this symbol, but it
4443 turns out that we can't. Note that we
4444 lose the other and desc information here.
4445 I don't think that will ever matter for a
4446 global symbol. */
4447 if (h->indx < 0)
4448 {
4449 h->indx = -2;
b34976b6 4450 h->written = FALSE;
7686d77d 4451 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4452 flaginfo))
b34976b6 4453 return FALSE;
252b5132
RH		 4454 }
4455 r_index = h->indx;
4456 }
4457 else
4458 {
4459 const char *name;
4460
4461 name = strings + GET_WORD (input_bfd,
4462 syms[r_index].e_strx);
1a72702b
AM		 4463 (*flaginfo->info->callbacks->unattached_reloc)
4464 (flaginfo->info, name,
4465 input_bfd, input_section, r_addr);
252b5132
RH		 4466 r_index = 0;
4467 }
4468 }
4469
4470 relocation = 0;
116c20d2
NC		 4471
4472 /* If this is a PC relative reloc, then the addend
4473 is the negative of the source VMA. We must
4474 adjust it by the change in the source VMA. This
4475 is done below. */
252b5132
RH		 4476 }
4477
4478 /* Write out the new r_index value. */
4479 if (bfd_header_big_endian (output_bfd))
4480 {
4481 rel->r_index[0] = r_index >> 16;
4482 rel->r_index[1] = r_index >> 8;
4483 rel->r_index[2] = r_index;
4484 }
4485 else
4486 {
4487 rel->r_index[2] = r_index >> 16;
4488 rel->r_index[1] = r_index >> 8;
4489 rel->r_index[0] = r_index;
4490 }
4491 }
4492 else
4493 {
252b5132
RH		 4494 /* This is a relocation against a section. We must
4495 adjust by the amount that the section moved. */
116c20d2
NC		 4496 r_section = aout_reloc_index_to_section (input_bfd, r_index);
4497 relocation = (r_section->output_section->vma
4498 + r_section->output_offset
4499 - r_section->vma);
252b5132 4500
116c20d2
NC		 4501 /* If this is a PC relative reloc, then the addend is
4502 the difference in VMA between the destination and the
4503 source. We have just adjusted for the change in VMA
4504 of the destination, so we must also adjust by the
4505 change in VMA of the source. This is done below. */
4506 }
252b5132 4507
116c20d2
NC		 4508 /* As described above, we must always adjust a PC relative
4509 reloc by the change in VMA of the source. However, if
4510 pcrel_offset is set, then the addend does not include the
4511 location within the section, in which case we don't need
4512 to adjust anything. */
4513 if (howto_table_ext[r_type].pc_relative
4514 && ! howto_table_ext[r_type].pcrel_offset)
252b5132
RH		 4515 relocation -= (input_section->output_section->vma
4516 + input_section->output_offset
4517 - input_section->vma);
4518
116c20d2
NC		 4519 /* Change the addend if necessary. */
4520 if (relocation != 0)
4521 PUT_WORD (output_bfd, r_addend + relocation, rel->r_addend);
252b5132 4522
116c20d2
NC		 4523 /* Change the address of the relocation. */
4524 PUT_WORD (output_bfd,
4525 r_addr + input_section->output_offset,
4526 rel->r_address);
252b5132
RH		 4527 }
4528 else
4529 {
b34976b6 4530 bfd_boolean hundef;
116c20d2 4531 bfd_reloc_status_type r;
252b5132
RH		 4532
4533 /* We are generating an executable, and must do a full
4534 relocation. */
b34976b6 4535 hundef = FALSE;
252b5132
RH		 4536
4537 if (r_extern)
4538 {
4539 h = sym_hashes[r_index];
4540
116c20d2 4541 if (h != NULL
252b5132
RH		 4542 && (h->root.type == bfd_link_hash_defined
4543 || h->root.type == bfd_link_hash_defweak))
4544 {
4545 relocation = (h->root.u.def.value
4546 + h->root.u.def.section->output_section->vma
4547 + h->root.u.def.section->output_offset);
4548 }
116c20d2 4549 else if (h != NULL
252b5132
RH		 4550 && h->root.type == bfd_link_hash_undefweak)
4551 relocation = 0;
4552 else
4553 {
b34976b6 4554 hundef = TRUE;
252b5132
RH		 4555 relocation = 0;
4556 }
4557 }
116c20d2
NC		 4558 else if (r_type == (unsigned int) RELOC_BASE10
4559 || r_type == (unsigned int) RELOC_BASE13
4560 || r_type == (unsigned int) RELOC_BASE22)
4561 {
4562 struct external_nlist *sym;
4563 int type;
4564
4565 /* For base relative relocs, r_index is always an index
4566 into the symbol table, even if r_extern is 0. */
4567 sym = syms + r_index;
4568 type = H_GET_8 (input_bfd, sym->e_type);
4569 if ((type & N_TYPE) == N_TEXT
4570 || type == N_WEAKT)
4571 r_section = obj_textsec (input_bfd);
4572 else if ((type & N_TYPE) == N_DATA
4573 || type == N_WEAKD)
4574 r_section = obj_datasec (input_bfd);
4575 else if ((type & N_TYPE) == N_BSS
4576 || type == N_WEAKB)
4577 r_section = obj_bsssec (input_bfd);
4578 else if ((type & N_TYPE) == N_ABS
4579 || type == N_WEAKA)
4580 r_section = bfd_abs_section_ptr;
4581 else
4582 abort ();
4583 relocation = (r_section->output_section->vma
4584 + r_section->output_offset
4585 + (GET_WORD (input_bfd, sym->e_value)
4586 - r_section->vma));
4587 }
252b5132
RH		 4588 else
4589 {
116c20d2 4590 r_section = aout_reloc_index_to_section (input_bfd, r_index);
252b5132 4591
116c20d2
NC		 4592 /* If this is a PC relative reloc, then R_ADDEND is the
4593 difference between the two vmas, or
4594 old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
4595 where
4596 old_dest_sec == section->vma
4597 and
4598 old_src_sec == input_section->vma
4599 and
4600 old_src_off == r_addr
4601
4602 _bfd_final_link_relocate expects RELOCATION +
4603 R_ADDEND to be the VMA of the destination minus
4604 r_addr (the minus r_addr is because this relocation
4605 is not pcrel_offset, which is a bit confusing and
4606 should, perhaps, be changed), or
4607 new_dest_sec
4608 where
4609 new_dest_sec == output_section->vma + output_offset
4610 We arrange for this to happen by setting RELOCATION to
4611 new_dest_sec + old_src_sec - old_dest_sec
4612
4613 If this is not a PC relative reloc, then R_ADDEND is
4614 simply the VMA of the destination, so we set
4615 RELOCATION to the change in the destination VMA, or
4616 new_dest_sec - old_dest_sec
4617 */
4618 relocation = (r_section->output_section->vma
4619 + r_section->output_offset
4620 - r_section->vma);
4621 if (howto_table_ext[r_type].pc_relative)
252b5132
RH		 4622 relocation += input_section->vma;
4623 }
4624
4625 if (check_dynamic_reloc != NULL)
4626 {
b34976b6 4627 bfd_boolean skip;
252b5132
RH		 4628
4629 if (! ((*check_dynamic_reloc)
57402f1e 4630 (flaginfo->info, input_bfd, input_section, h,
116c20d2 4631 (void *) rel, contents, &skip, &relocation)))
b34976b6 4632 return FALSE;
252b5132
RH		 4633 if (skip)
4634 continue;
4635 }
4636
4637 /* Now warn if a global symbol is undefined. We could not
4638 do this earlier, because check_dynamic_reloc might want
4639 to skip this reloc. */
116c20d2 4640 if (hundef
0e1862bb 4641 && ! bfd_link_pic (flaginfo->info)
116c20d2
NC		 4642 && r_type != (unsigned int) RELOC_BASE10
4643 && r_type != (unsigned int) RELOC_BASE13
4644 && r_type != (unsigned int) RELOC_BASE22)
252b5132
RH		 4645 {
4646 const char *name;
4647
4648 if (h != NULL)
4649 name = h->root.root.string;
4650 else
4651 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4652 (*flaginfo->info->callbacks->undefined_symbol)
4653 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
252b5132
RH		 4654 }
4655
116c20d2
NC		 4656 if (r_type != (unsigned int) RELOC_SPARC_REV32)
4657 r = MY_final_link_relocate (howto_table_ext + r_type,
4658 input_bfd, input_section,
4659 contents, r_addr, relocation,
4660 r_addend);
4661 else
252b5132 4662 {
116c20d2 4663 bfd_vma x;
252b5132 4664
116c20d2
NC		 4665 x = bfd_get_32 (input_bfd, contents + r_addr);
4666 x = x + relocation + r_addend;
4667 bfd_putl32 (/*input_bfd,*/ x, contents + r_addr);
4668 r = bfd_reloc_ok;
4669 }
4670
4671 if (r != bfd_reloc_ok)
4672 {
4673 switch (r)
4674 {
4675 default:
4676 case bfd_reloc_outofrange:
4677 abort ();
4678 case bfd_reloc_overflow:
252b5132 4679 {
116c20d2 4680 const char *name;
252b5132 4681
116c20d2
NC		 4682 if (h != NULL)
4683 name = NULL;
4684 else if (r_extern
4685 || r_type == (unsigned int) RELOC_BASE10
4686 || r_type == (unsigned int) RELOC_BASE13
4687 || r_type == (unsigned int) RELOC_BASE22)
4688 name = strings + GET_WORD (input_bfd,
4689 syms[r_index].e_strx);
4690 else
4691 {
4692 asection *s;
4693
4694 s = aout_reloc_index_to_section (input_bfd, r_index);
4695 name = bfd_section_name (input_bfd, s);
4696 }
1a72702b
AM		 4697 (*flaginfo->info->callbacks->reloc_overflow)
4698 (flaginfo->info, (h ? &h->root : NULL), name,
4699 howto_table_ext[r_type].name,
4700 r_addend, input_bfd, input_section, r_addr);
252b5132 4701 }
116c20d2
NC		 4702 break;
4703 }
252b5132
RH		 4704 }
4705 }
4706 }
4707
b34976b6 4708 return TRUE;
252b5132
RH		 4709}
4710
116c20d2
NC		 4711/* Link an a.out section into the output file. */
4712
4713static bfd_boolean
57402f1e 4714aout_link_input_section (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4715 bfd *input_bfd,
4716 asection *input_section,
4717 file_ptr *reloff_ptr,
4718 bfd_size_type rel_size)
4719{
4720 bfd_size_type input_size;
4721 void * relocs;
4722
4723 /* Get the section contents. */
4724 input_size = input_section->size;
4725 if (! bfd_get_section_contents (input_bfd, input_section,
57402f1e 4726 (void *) flaginfo->contents,
116c20d2
NC		 4727 (file_ptr) 0, input_size))
4728 return FALSE;
4729
4730 /* Read in the relocs if we haven't already done it. */
4731 if (aout_section_data (input_section) != NULL
4732 && aout_section_data (input_section)->relocs != NULL)
4733 relocs = aout_section_data (input_section)->relocs;
4734 else
4735 {
57402f1e 4736 relocs = flaginfo->relocs;
116c20d2
NC		 4737 if (rel_size > 0)
4738 {
4739 if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
4740 || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
4741 return FALSE;
4742 }
4743 }
4744
4745 /* Relocate the section contents. */
4746 if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE)
4747 {
57402f1e 4748 if (! aout_link_input_section_std (flaginfo, input_bfd, input_section,
116c20d2 4749 (struct reloc_std_external *) relocs,
57402f1e 4750 rel_size, flaginfo->contents))
116c20d2
NC		 4751 return FALSE;
4752 }
4753 else
4754 {
57402f1e 4755 if (! aout_link_input_section_ext (flaginfo, input_bfd, input_section,
116c20d2 4756 (struct reloc_ext_external *) relocs,
57402f1e 4757 rel_size, flaginfo->contents))
116c20d2
NC		 4758 return FALSE;
4759 }
4760
4761 /* Write out the section contents. */
57402f1e 4762 if (! bfd_set_section_contents (flaginfo->output_bfd,
116c20d2 4763 input_section->output_section,
57402f1e 4764 (void *) flaginfo->contents,
116c20d2
NC		 4765 (file_ptr) input_section->output_offset,
4766 input_size))
4767 return FALSE;
4768
4769 /* If we are producing relocatable output, the relocs were
4770 modified, and we now write them out. */
0e1862bb 4771 if (bfd_link_relocatable (flaginfo->info) && rel_size > 0)
116c20d2 4772 {
57402f1e 4773 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
116c20d2 4774 return FALSE;
57402f1e 4775 if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size)
116c20d2
NC		 4776 return FALSE;
4777 *reloff_ptr += rel_size;
4778
4779 /* Assert that the relocs have not run into the symbols, and
4780 that if these are the text relocs they have not run into the
4781 data relocs. */
57402f1e
NC		 4782 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
4783 && (reloff_ptr != &flaginfo->treloff
116c20d2 4784 || (*reloff_ptr
57402f1e 4785 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 4786 }
4787
4788 return TRUE;
4789}
4790
4791/* Adjust and write out the symbols for an a.out file. Set the new
4792 symbol indices into a symbol_map. */
252b5132 4793
b34976b6 4794static bfd_boolean
57402f1e 4795aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd)
252b5132 4796{
252b5132 4797 bfd *output_bfd;
116c20d2 4798 bfd_size_type sym_count;
252b5132 4799 char *strings;
116c20d2
NC		 4800 enum bfd_link_strip strip;
4801 enum bfd_link_discard discard;
4802 struct external_nlist *outsym;
4803 bfd_size_type strtab_index;
4804 struct external_nlist *sym;
4805 struct external_nlist *sym_end;
4806 struct aout_link_hash_entry **sym_hash;
252b5132 4807 int *symbol_map;
116c20d2
NC		 4808 bfd_boolean pass;
4809 bfd_boolean skip_next;
252b5132 4810
57402f1e 4811 output_bfd = flaginfo->output_bfd;
116c20d2
NC		 4812 sym_count = obj_aout_external_sym_count (input_bfd);
4813 strings = obj_aout_external_strings (input_bfd);
57402f1e
NC		 4814 strip = flaginfo->info->strip;
4815 discard = flaginfo->info->discard;
4816 outsym = flaginfo->output_syms;
252b5132 4817
116c20d2
NC		 4818 /* First write out a symbol for this object file, unless we are
4819 discarding such symbols. */
4820 if (strip != strip_all
4821 && (strip != strip_some
57402f1e 4822 || bfd_hash_lookup (flaginfo->info->keep_hash, input_bfd->filename,
116c20d2
NC		 4823 FALSE, FALSE) != NULL)
4824 && discard != discard_all)
4825 {
4826 H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
4827 H_PUT_8 (output_bfd, 0, outsym->e_other);
4828 H_PUT_16 (output_bfd, 0, outsym->e_desc);
57402f1e 4829 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 4830 input_bfd->filename, FALSE);
4831 if (strtab_index == (bfd_size_type) -1)
4832 return FALSE;
4833 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
4834 PUT_WORD (output_bfd,
4835 (bfd_get_section_vma (output_bfd,
4836 obj_textsec (input_bfd)->output_section)
4837 + obj_textsec (input_bfd)->output_offset),
4838 outsym->e_value);
4839 ++obj_aout_external_sym_count (output_bfd);
4840 ++outsym;
4841 }
252b5132 4842
116c20d2
NC		 4843 pass = FALSE;
4844 skip_next = FALSE;
4845 sym = obj_aout_external_syms (input_bfd);
4846 sym_end = sym + sym_count;
4847 sym_hash = obj_aout_sym_hashes (input_bfd);
57402f1e 4848 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4849 memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map);
4850 for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
252b5132 4851 {
116c20d2
NC		 4852 const char *name;
4853 int type;
4854 struct aout_link_hash_entry *h;
4855 bfd_boolean skip;
4856 asection *symsec;
4857 bfd_vma val = 0;
4858 bfd_boolean copy;
252b5132 4859
116c20d2
NC		 4860 /* We set *symbol_map to 0 above for all symbols. If it has
4861 already been set to -1 for this symbol, it means that we are
4862 discarding it because it appears in a duplicate header file.
4863 See the N_BINCL code below. */
4864 if (*symbol_map == -1)
4865 continue;
252b5132 4866
116c20d2
NC		 4867 /* Initialize *symbol_map to -1, which means that the symbol was
4868 not copied into the output file. We will change it later if
4869 we do copy the symbol over. */
4870 *symbol_map = -1;
4871
4872 type = H_GET_8 (input_bfd, sym->e_type);
4873 name = strings + GET_WORD (input_bfd, sym->e_strx);
4874
4875 h = NULL;
4876
4877 if (pass)
252b5132 4878 {
116c20d2
NC		 4879 /* Pass this symbol through. It is the target of an
4880 indirect or warning symbol. */
4881 val = GET_WORD (input_bfd, sym->e_value);
4882 pass = FALSE;
252b5132 4883 }
116c20d2 4884 else if (skip_next)
252b5132 4885 {
116c20d2
NC		 4886 /* Skip this symbol, which is the target of an indirect
4887 symbol that we have changed to no longer be an indirect
4888 symbol. */
4889 skip_next = FALSE;
4890 continue;
252b5132 4891 }
116c20d2
NC		 4892 else
4893 {
4894 struct aout_link_hash_entry *hresolve;
252b5132 4895
116c20d2
NC		 4896 /* We have saved the hash table entry for this symbol, if
4897 there is one. Note that we could just look it up again
4898 in the hash table, provided we first check that it is an
4899 external symbol. */
4900 h = *sym_hash;
252b5132 4901
116c20d2
NC		 4902 /* Use the name from the hash table, in case the symbol was
4903 wrapped. */
4904 if (h != NULL
4905 && h->root.type != bfd_link_hash_warning)
4906 name = h->root.root.string;
252b5132 4907
116c20d2
NC		 4908 /* If this is an indirect or warning symbol, then change
4909 hresolve to the base symbol. We also change *sym_hash so
4910 that the relocation routines relocate against the real
4911 symbol. */
4912 hresolve = h;
4913 if (h != (struct aout_link_hash_entry *) NULL
4914 && (h->root.type == bfd_link_hash_indirect
4915 || h->root.type == bfd_link_hash_warning))
252b5132 4916 {
116c20d2
NC		 4917 hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
4918 while (hresolve->root.type == bfd_link_hash_indirect
4919 || hresolve->root.type == bfd_link_hash_warning)
4920 hresolve = ((struct aout_link_hash_entry *)
4921 hresolve->root.u.i.link);
4922 *sym_hash = hresolve;
4923 }
4924
4925 /* If the symbol has already been written out, skip it. */
4926 if (h != NULL
4927 && h->written)
4928 {
4929 if ((type & N_TYPE) == N_INDR
4930 || type == N_WARNING)
4931 skip_next = TRUE;
4932 *symbol_map = h->indx;
4933 continue;
4934 }
4935
4936 /* See if we are stripping this symbol. */
4937 skip = FALSE;
4938 switch (strip)
4939 {
4940 case strip_none:
4941 break;
4942 case strip_debugger:
4943 if ((type & N_STAB) != 0)
4944 skip = TRUE;
4945 break;
4946 case strip_some:
57402f1e 4947 if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE)
116c20d2
NC		 4948 == NULL)
4949 skip = TRUE;
4950 break;
4951 case strip_all:
4952 skip = TRUE;
4953 break;
4954 }
4955 if (skip)
4956 {
4957 if (h != NULL)
4958 h->written = TRUE;
4959 continue;
4960 }
4961
4962 /* Get the value of the symbol. */
4963 if ((type & N_TYPE) == N_TEXT
4964 || type == N_WEAKT)
4965 symsec = obj_textsec (input_bfd);
4966 else if ((type & N_TYPE) == N_DATA
4967 || type == N_WEAKD)
4968 symsec = obj_datasec (input_bfd);
4969 else if ((type & N_TYPE) == N_BSS
4970 || type == N_WEAKB)
4971 symsec = obj_bsssec (input_bfd);
4972 else if ((type & N_TYPE) == N_ABS
4973 || type == N_WEAKA)
4974 symsec = bfd_abs_section_ptr;
4975 else if (((type & N_TYPE) == N_INDR
4976 && (hresolve == NULL
4977 || (hresolve->root.type != bfd_link_hash_defined
4978 && hresolve->root.type != bfd_link_hash_defweak
4979 && hresolve->root.type != bfd_link_hash_common)))
4980 || type == N_WARNING)
4981 {
4982 /* Pass the next symbol through unchanged. The
4983 condition above for indirect symbols is so that if
4984 the indirect symbol was defined, we output it with
4985 the correct definition so the debugger will
4986 understand it. */
4987 pass = TRUE;
4988 val = GET_WORD (input_bfd, sym->e_value);
4989 symsec = NULL;
4990 }
4991 else if ((type & N_STAB) != 0)
4992 {
4993 val = GET_WORD (input_bfd, sym->e_value);
4994 symsec = NULL;
4995 }
4996 else
4997 {
4998 /* If we get here with an indirect symbol, it means that
4999 we are outputting it with a real definition. In such
5000 a case we do not want to output the next symbol,
5001 which is the target of the indirection. */
5002 if ((type & N_TYPE) == N_INDR)
5003 skip_next = TRUE;
5004
5005 symsec = NULL;
5006
5007 /* We need to get the value from the hash table. We use
5008 hresolve so that if we have defined an indirect
5009 symbol we output the final definition. */
5010 if (h == NULL)
5011 {
5012 switch (type & N_TYPE)
5013 {
5014 case N_SETT:
5015 symsec = obj_textsec (input_bfd);
5016 break;
5017 case N_SETD:
5018 symsec = obj_datasec (input_bfd);
5019 break;
5020 case N_SETB:
5021 symsec = obj_bsssec (input_bfd);
5022 break;
5023 case N_SETA:
5024 symsec = bfd_abs_section_ptr;
5025 break;
5026 default:
5027 val = 0;
5028 break;
5029 }
5030 }
5031 else if (hresolve->root.type == bfd_link_hash_defined
5032 || hresolve->root.type == bfd_link_hash_defweak)
252b5132 5033 {
116c20d2 5034 asection *input_section;
252b5132
RH		 5035 asection *output_section;
5036
116c20d2
NC		 5037 /* This case usually means a common symbol which was
5038 turned into a defined symbol. */
5039 input_section = hresolve->root.u.def.section;
5040 output_section = input_section->output_section;
5041 BFD_ASSERT (bfd_is_abs_section (output_section)
5042 || output_section->owner == output_bfd);
5043 val = (hresolve->root.u.def.value
5044 + bfd_get_section_vma (output_bfd, output_section)
5045 + input_section->output_offset);
5046
5047 /* Get the correct type based on the section. If
5048 this is a constructed set, force it to be
5049 globally visible. */
5050 if (type == N_SETT
5051 || type == N_SETD
5052 || type == N_SETB
5053 || type == N_SETA)
5054 type |= N_EXT;
5055
5056 type &=~ N_TYPE;
252b5132 5057
252b5132 5058 if (output_section == obj_textsec (output_bfd))
116c20d2
NC		 5059 type |= (hresolve->root.type == bfd_link_hash_defined
5060 ? N_TEXT
5061 : N_WEAKT);
252b5132 5062 else if (output_section == obj_datasec (output_bfd))
116c20d2
NC		 5063 type |= (hresolve->root.type == bfd_link_hash_defined
5064 ? N_DATA
5065 : N_WEAKD);
252b5132 5066 else if (output_section == obj_bsssec (output_bfd))
116c20d2
NC		 5067 type |= (hresolve->root.type == bfd_link_hash_defined
5068 ? N_BSS
5069 : N_WEAKB);
252b5132 5070 else
116c20d2
NC		 5071 type |= (hresolve->root.type == bfd_link_hash_defined
5072 ? N_ABS
5073 : N_WEAKA);
5074 }
5075 else if (hresolve->root.type == bfd_link_hash_common)
5076 val = hresolve->root.u.c.size;
5077 else if (hresolve->root.type == bfd_link_hash_undefweak)
5078 {
5079 val = 0;
5080 type = N_WEAKU;
252b5132
RH		 5081 }
5082 else
116c20d2
NC		 5083 val = 0;
5084 }
5085 if (symsec != NULL)
5086 val = (symsec->output_section->vma
5087 + symsec->output_offset
5088 + (GET_WORD (input_bfd, sym->e_value)
5089 - symsec->vma));
5090
5091 /* If this is a global symbol set the written flag, and if
5092 it is a local symbol see if we should discard it. */
5093 if (h != NULL)
5094 {
5095 h->written = TRUE;
5096 h->indx = obj_aout_external_sym_count (output_bfd);
5097 }
5098 else if ((type & N_TYPE) != N_SETT
5099 && (type & N_TYPE) != N_SETD
5100 && (type & N_TYPE) != N_SETB
5101 && (type & N_TYPE) != N_SETA)
5102 {
5103 switch (discard)
252b5132 5104 {
116c20d2
NC		 5105 case discard_none:
5106 case discard_sec_merge:
5107 break;
5108 case discard_l:
5109 if ((type & N_STAB) == 0
5110 && bfd_is_local_label_name (input_bfd, name))
5111 skip = TRUE;
5112 break;
5113 case discard_all:
5114 skip = TRUE;
5115 break;
5116 }
5117 if (skip)
5118 {
5119 pass = FALSE;
5120 continue;
5121 }
5122 }
252b5132 5123
116c20d2
NC		 5124 /* An N_BINCL symbol indicates the start of the stabs
5125 entries for a header file. We need to scan ahead to the
5126 next N_EINCL symbol, ignoring nesting, adding up all the
5127 characters in the symbol names, not including the file
5128 numbers in types (the first number after an open
5129 parenthesis). */
5130 if (type == (int) N_BINCL)
5131 {
5132 struct external_nlist *incl_sym;
5133 int nest;
5134 struct aout_link_includes_entry *incl_entry;
5135 struct aout_link_includes_totals *t;
5136
5137 val = 0;
5138 nest = 0;
5139 for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
5140 {
5141 int incl_type;
5142
5143 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5144 if (incl_type == (int) N_EINCL)
252b5132 5145 {
116c20d2
NC		 5146 if (nest == 0)
5147 break;
5148 --nest;
5149 }
5150 else if (incl_type == (int) N_BINCL)
5151 ++nest;
5152 else if (nest == 0)
5153 {
5154 const char *s;
5155
5156 s = strings + GET_WORD (input_bfd, incl_sym->e_strx);
5157 for (; *s != '\0'; s++)
252b5132 5158 {
116c20d2
NC		 5159 val += *s;
5160 if (*s == '(')
252b5132 5161 {
116c20d2
NC		 5162 /* Skip the file number. */
5163 ++s;
5164 while (ISDIGIT (*s))
5165 ++s;
5166 --s;
252b5132 5167 }
252b5132 5168 }
116c20d2
NC		 5169 }
5170 }
252b5132 5171
116c20d2
NC		 5172 /* If we have already included a header file with the
5173 same value, then replace this one with an N_EXCL
5174 symbol. */
57402f1e
NC		 5175 copy = (bfd_boolean) (! flaginfo->info->keep_memory);
5176 incl_entry = aout_link_includes_lookup (&flaginfo->includes,
116c20d2
NC		 5177 name, TRUE, copy);
5178 if (incl_entry == NULL)
5179 return FALSE;
5180 for (t = incl_entry->totals; t != NULL; t = t->next)
5181 if (t->total == val)
5182 break;
5183 if (t == NULL)
5184 {
5185 /* This is the first time we have seen this header
5186 file with this set of stabs strings. */
a50b1753 5187 t = (struct aout_link_includes_totals *)
57402f1e 5188 bfd_hash_allocate (&flaginfo->includes.root,
116c20d2
NC		 5189 sizeof *t);
5190 if (t == NULL)
5191 return FALSE;
5192 t->total = val;
5193 t->next = incl_entry->totals;
5194 incl_entry->totals = t;
5195 }
5196 else
5197 {
5198 int *incl_map;
5199
5200 /* This is a duplicate header file. We must change
5201 it to be an N_EXCL entry, and mark all the
5202 included symbols to prevent outputting them. */
5203 type = (int) N_EXCL;
5204
5205 nest = 0;
5206 for (incl_sym = sym + 1, incl_map = symbol_map + 1;
5207 incl_sym < sym_end;
5208 incl_sym++, incl_map++)
5209 {
5210 int incl_type;
5211
5212 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5213 if (incl_type == (int) N_EINCL)
5214 {
5215 if (nest == 0)
5216 {
5217 *incl_map = -1;
5218 break;
5219 }
5220 --nest;
252b5132 5221 }
116c20d2
NC		 5222 else if (incl_type == (int) N_BINCL)
5223 ++nest;
5224 else if (nest == 0)
5225 *incl_map = -1;
252b5132 5226 }
252b5132
RH		 5227 }
5228 }
116c20d2
NC		 5229 }
5230
5231 /* Copy this symbol into the list of symbols we are going to
5232 write out. */
5233 H_PUT_8 (output_bfd, type, outsym->e_type);
5234 H_PUT_8 (output_bfd, H_GET_8 (input_bfd, sym->e_other), outsym->e_other);
5235 H_PUT_16 (output_bfd, H_GET_16 (input_bfd, sym->e_desc), outsym->e_desc);
5236 copy = FALSE;
57402f1e 5237 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5238 {
5239 /* name points into a string table which we are going to
5240 free. If there is a hash table entry, use that string.
5241 Otherwise, copy name into memory. */
5242 if (h != NULL)
5243 name = h->root.root.string;
252b5132 5244 else
116c20d2
NC		 5245 copy = TRUE;
5246 }
57402f1e 5247 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 5248 name, copy);
5249 if (strtab_index == (bfd_size_type) -1)
5250 return FALSE;
5251 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
5252 PUT_WORD (output_bfd, val, outsym->e_value);
5253 *symbol_map = obj_aout_external_sym_count (output_bfd);
5254 ++obj_aout_external_sym_count (output_bfd);
5255 ++outsym;
5256 }
252b5132 5257
116c20d2 5258 /* Write out the output symbols we have just constructed. */
57402f1e 5259 if (outsym > flaginfo->output_syms)
116c20d2
NC		 5260 {
5261 bfd_size_type outsym_size;
252b5132 5262
57402f1e 5263 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0)
116c20d2 5264 return FALSE;
57402f1e 5265 outsym_size = outsym - flaginfo->output_syms;
116c20d2 5266 outsym_size *= EXTERNAL_NLIST_SIZE;
57402f1e 5267 if (bfd_bwrite ((void *) flaginfo->output_syms, outsym_size, output_bfd)
116c20d2
NC		 5268 != outsym_size)
5269 return FALSE;
57402f1e 5270 flaginfo->symoff += outsym_size;
116c20d2 5271 }
252b5132 5272
116c20d2
NC		 5273 return TRUE;
5274}
252b5132 5275
116c20d2 5276/* Link an a.out input BFD into the output file. */
252b5132 5277
116c20d2 5278static bfd_boolean
57402f1e 5279aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd)
116c20d2 5280{
116c20d2 5281 BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
252b5132 5282
116c20d2
NC		 5283 /* If this is a dynamic object, it may need special handling. */
5284 if ((input_bfd->flags & DYNAMIC) != 0
5285 && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
5286 return ((*aout_backend_info (input_bfd)->link_dynamic_object)
57402f1e 5287 (flaginfo->info, input_bfd));
252b5132 5288
116c20d2 5289 /* Get the symbols. We probably have them already, unless
57402f1e 5290 flaginfo->info->keep_memory is FALSE. */
116c20d2
NC		 5291 if (! aout_get_external_symbols (input_bfd))
5292 return FALSE;
252b5132 5293
116c20d2 5294 /* Write out the symbols and get a map of the new indices. The map
57402f1e
NC		 5295 is placed into flaginfo->symbol_map. */
5296 if (! aout_link_write_symbols (flaginfo, input_bfd))
116c20d2 5297 return FALSE;
252b5132 5298
116c20d2
NC		 5299 /* Relocate and write out the sections. These functions use the
5300 symbol map created by aout_link_write_symbols. The linker_mark
5301 field will be set if these sections are to be included in the
5302 link, which will normally be the case. */
5303 if (obj_textsec (input_bfd)->linker_mark)
5304 {
57402f1e 5305 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5306 obj_textsec (input_bfd),
57402f1e 5307 &flaginfo->treloff,
116c20d2
NC		 5308 exec_hdr (input_bfd)->a_trsize))
5309 return FALSE;
5310 }
5311 if (obj_datasec (input_bfd)->linker_mark)
5312 {
57402f1e 5313 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5314 obj_datasec (input_bfd),
57402f1e 5315 &flaginfo->dreloff,
116c20d2
NC		 5316 exec_hdr (input_bfd)->a_drsize))
5317 return FALSE;
5318 }
5319
5320 /* If we are not keeping memory, we don't need the symbols any
5321 longer. We still need them if we are keeping memory, because the
5322 strings in the hash table point into them. */
57402f1e 5323 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5324 {
5325 if (! aout_link_free_symbols (input_bfd))
5326 return FALSE;
5327 }
5328
5329 return TRUE;
5330}
5331
5332/* Do the final link step. This is called on the output BFD. The
5333 INFO structure should point to a list of BFDs linked through the
c72f2fb2 5334 link.next field which can be used to find each BFD which takes part
116c20d2
NC		 5335 in the output. Also, each section in ABFD should point to a list
5336 of bfd_link_order structures which list all the input sections for
5337 the output section. */
5338
5339bfd_boolean
5340NAME (aout, final_link) (bfd *abfd,
5341 struct bfd_link_info *info,
5342 void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *))
5343{
5344 struct aout_final_link_info aout_info;
5345 bfd_boolean includes_hash_initialized = FALSE;
5346 bfd *sub;
5347 bfd_size_type trsize, drsize;
5348 bfd_size_type max_contents_size;
5349 bfd_size_type max_relocs_size;
5350 bfd_size_type max_sym_count;
116c20d2
NC		 5351 struct bfd_link_order *p;
5352 asection *o;
5353 bfd_boolean have_link_order_relocs;
5354
0e1862bb 5355 if (bfd_link_pic (info))
116c20d2
NC		 5356 abfd->flags |= DYNAMIC;
5357
5358 aout_info.info = info;
5359 aout_info.output_bfd = abfd;
5360 aout_info.contents = NULL;
5361 aout_info.relocs = NULL;
5362 aout_info.symbol_map = NULL;
5363 aout_info.output_syms = NULL;
252b5132 5364
66eb6687
AM		 5365 if (!bfd_hash_table_init_n (&aout_info.includes.root,
5366 aout_link_includes_newfunc,
5367 sizeof (struct aout_link_includes_entry),
5368 251))
116c20d2
NC		 5369 goto error_return;
5370 includes_hash_initialized = TRUE;
252b5132 5371
116c20d2
NC		 5372 /* Figure out the largest section size. Also, if generating
5373 relocatable output, count the relocs. */
5374 trsize = 0;
5375 drsize = 0;
5376 max_contents_size = 0;
5377 max_relocs_size = 0;
5378 max_sym_count = 0;
c72f2fb2 5379 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2
NC		 5380 {
5381 bfd_size_type sz;
252b5132 5382
0e1862bb 5383 if (bfd_link_relocatable (info))
116c20d2
NC		 5384 {
5385 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
252b5132 5386 {
116c20d2
NC		 5387 trsize += exec_hdr (sub)->a_trsize;
5388 drsize += exec_hdr (sub)->a_drsize;
252b5132 5389 }
252b5132
RH		 5390 else
5391 {
116c20d2
NC		 5392 /* FIXME: We need to identify the .text and .data sections
5393 and call get_reloc_upper_bound and canonicalize_reloc to
5394 work out the number of relocs needed, and then multiply
5395 by the reloc size. */
4eca0228 5396 _bfd_error_handler
695344c0 5397 /* xgettext:c-format */
116c20d2
NC		 5398 (_("%s: relocatable link from %s to %s not supported"),
5399 bfd_get_filename (abfd),
5400 sub->xvec->name, abfd->xvec->name);
5401 bfd_set_error (bfd_error_invalid_operation);
5402 goto error_return;
252b5132 5403 }
116c20d2 5404 }
252b5132 5405
116c20d2
NC		 5406 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
5407 {
5408 sz = obj_textsec (sub)->size;
5409 if (sz > max_contents_size)
5410 max_contents_size = sz;
5411 sz = obj_datasec (sub)->size;
5412 if (sz > max_contents_size)
5413 max_contents_size = sz;
252b5132 5414
116c20d2
NC		 5415 sz = exec_hdr (sub)->a_trsize;
5416 if (sz > max_relocs_size)
5417 max_relocs_size = sz;
5418 sz = exec_hdr (sub)->a_drsize;
5419 if (sz > max_relocs_size)
5420 max_relocs_size = sz;
252b5132 5421
116c20d2
NC		 5422 sz = obj_aout_external_sym_count (sub);
5423 if (sz > max_sym_count)
5424 max_sym_count = sz;
252b5132
RH		 5425 }
5426 }
5427
0e1862bb 5428 if (bfd_link_relocatable (info))
116c20d2
NC		 5429 {
5430 if (obj_textsec (abfd) != NULL)
5431 trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
8423293d 5432 ->map_head.link_order)
116c20d2
NC		 5433 * obj_reloc_entry_size (abfd));
5434 if (obj_datasec (abfd) != NULL)
5435 drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
8423293d 5436 ->map_head.link_order)
116c20d2
NC		 5437 * obj_reloc_entry_size (abfd));
5438 }
252b5132 5439
116c20d2
NC		 5440 exec_hdr (abfd)->a_trsize = trsize;
5441 exec_hdr (abfd)->a_drsize = drsize;
252b5132 5442
116c20d2 5443 exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
252b5132 5444
116c20d2
NC		 5445 /* Adjust the section sizes and vmas according to the magic number.
5446 This sets a_text, a_data and a_bss in the exec_hdr and sets the
5447 filepos for each section. */
3a8c4a5b 5448 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
116c20d2 5449 goto error_return;
252b5132 5450
116c20d2
NC		 5451 /* The relocation and symbol file positions differ among a.out
5452 targets. We are passed a callback routine from the backend
5453 specific code to handle this.
5454 FIXME: At this point we do not know how much space the symbol
5455 table will require. This will not work for any (nonstandard)
5456 a.out target that needs to know the symbol table size before it
5457 can compute the relocation file positions. This may or may not
5458 be the case for the hp300hpux target, for example. */
5459 (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
5460 &aout_info.symoff);
5461 obj_textsec (abfd)->rel_filepos = aout_info.treloff;
5462 obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
5463 obj_sym_filepos (abfd) = aout_info.symoff;
252b5132 5464
116c20d2
NC		 5465 /* We keep a count of the symbols as we output them. */
5466 obj_aout_external_sym_count (abfd) = 0;
5467
5468 /* We accumulate the string table as we write out the symbols. */
5469 aout_info.strtab = _bfd_stringtab_init ();
5470 if (aout_info.strtab == NULL)
5471 goto error_return;
5472
5473 /* Allocate buffers to hold section contents and relocs. */
a50b1753 5474 aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
116c20d2 5475 aout_info.relocs = bfd_malloc (max_relocs_size);
c38eb2a6 5476 aout_info.symbol_map = (int *) bfd_malloc (max_sym_count * sizeof (int));
a50b1753
NC		 5477 aout_info.output_syms = (struct external_nlist *)
5478 bfd_malloc ((max_sym_count + 1) * sizeof (struct external_nlist));
116c20d2
NC		 5479 if ((aout_info.contents == NULL && max_contents_size != 0)
5480 || (aout_info.relocs == NULL && max_relocs_size != 0)
5481 || (aout_info.symbol_map == NULL && max_sym_count != 0)
5482 || aout_info.output_syms == NULL)
5483 goto error_return;
5484
5485 /* If we have a symbol named __DYNAMIC, force it out now. This is
5486 required by SunOS. Doing this here rather than in sunos.c is a
5487 hack, but it's easier than exporting everything which would be
5488 needed. */
5489 {
5490 struct aout_link_hash_entry *h;
5491
5492 h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
5493 FALSE, FALSE, FALSE);
5494 if (h != NULL)
7686d77d 5495 aout_link_write_other_symbol (&h->root.root, &aout_info);
116c20d2
NC		 5496 }
5497
5498 /* The most time efficient way to do the link would be to read all
5499 the input object files into memory and then sort out the
5500 information into the output file. Unfortunately, that will
5501 probably use too much memory. Another method would be to step
5502 through everything that composes the text section and write it
5503 out, and then everything that composes the data section and write
5504 it out, and then write out the relocs, and then write out the
5505 symbols. Unfortunately, that requires reading stuff from each
5506 input file several times, and we will not be able to keep all the
5507 input files open simultaneously, and reopening them will be slow.
5508
5509 What we do is basically process one input file at a time. We do
5510 everything we need to do with an input file once--copy over the
5511 section contents, handle the relocation information, and write
5512 out the symbols--and then we throw away the information we read
5513 from it. This approach requires a lot of lseeks of the output
5514 file, which is unfortunate but still faster than reopening a lot
5515 of files.
5516
5517 We use the output_has_begun field of the input BFDs to see
5518 whether we have already handled it. */
c72f2fb2 5519 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2 5520 sub->output_has_begun = FALSE;
252b5132 5521
116c20d2
NC		 5522 /* Mark all sections which are to be included in the link. This
5523 will normally be every section. We need to do this so that we
5524 can identify any sections which the linker has decided to not
5525 include. */
5526 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5527 {
8423293d 5528 for (p = o->map_head.link_order; p != NULL; p = p->next)
116c20d2
NC		 5529 if (p->type == bfd_indirect_link_order)
5530 p->u.indirect.section->linker_mark = TRUE;
252b5132
RH		 5531 }
5532
116c20d2
NC		 5533 have_link_order_relocs = FALSE;
5534 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5535 {
8423293d 5536 for (p = o->map_head.link_order;
116c20d2
NC		 5537 p != NULL;
5538 p = p->next)
252b5132 5539 {
116c20d2
NC		 5540 if (p->type == bfd_indirect_link_order
5541 && (bfd_get_flavour (p->u.indirect.section->owner)
5542 == bfd_target_aout_flavour))
252b5132 5543 {
116c20d2
NC		 5544 bfd *input_bfd;
5545
5546 input_bfd = p->u.indirect.section->owner;
5547 if (! input_bfd->output_has_begun)
252b5132 5548 {
116c20d2
NC		 5549 if (! aout_link_input_bfd (&aout_info, input_bfd))
5550 goto error_return;
5551 input_bfd->output_has_begun = TRUE;
252b5132 5552 }
252b5132 5553 }
116c20d2
NC		 5554 else if (p->type == bfd_section_reloc_link_order
5555 || p->type == bfd_symbol_reloc_link_order)
5556 {
5557 /* These are handled below. */
5558 have_link_order_relocs = TRUE;
5559 }
5560 else
5561 {
5562 if (! _bfd_default_link_order (abfd, info, o, p))
5563 goto error_return;
5564 }
252b5132
RH		 5565 }
5566 }
252b5132 5567
116c20d2 5568 /* Write out any symbols that we have not already written out. */
7686d77d
AM		 5569 bfd_hash_traverse (&info->hash->table,
5570 aout_link_write_other_symbol,
5571 &aout_info);
116c20d2
NC		 5572
5573 /* Now handle any relocs we were asked to create by the linker.
5574 These did not come from any input file. We must do these after
5575 we have written out all the symbols, so that we know the symbol
5576 indices to use. */
5577 if (have_link_order_relocs)
5578 {
5579 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5580 {
8423293d 5581 for (p = o->map_head.link_order;
116c20d2
NC		 5582 p != NULL;
5583 p = p->next)
5584 {
5585 if (p->type == bfd_section_reloc_link_order
5586 || p->type == bfd_symbol_reloc_link_order)
5587 {
5588 if (! aout_link_reloc_link_order (&aout_info, o, p))
5589 goto error_return;
5590 }
5591 }
252b5132 5592 }
116c20d2 5593 }
252b5132 5594
116c20d2
NC		 5595 if (aout_info.contents != NULL)
5596 {
5597 free (aout_info.contents);
5598 aout_info.contents = NULL;
5599 }
5600 if (aout_info.relocs != NULL)
5601 {
5602 free (aout_info.relocs);
5603 aout_info.relocs = NULL;
5604 }
5605 if (aout_info.symbol_map != NULL)
5606 {
5607 free (aout_info.symbol_map);
5608 aout_info.symbol_map = NULL;
5609 }
5610 if (aout_info.output_syms != NULL)
5611 {
5612 free (aout_info.output_syms);
5613 aout_info.output_syms = NULL;
5614 }
5615 if (includes_hash_initialized)
5616 {
5617 bfd_hash_table_free (&aout_info.includes.root);
5618 includes_hash_initialized = FALSE;
5619 }
252b5132 5620
116c20d2
NC		 5621 /* Finish up any dynamic linking we may be doing. */
5622 if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
5623 {
5624 if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
5625 goto error_return;
252b5132
RH		 5626 }
5627
116c20d2
NC		 5628 /* Update the header information. */
5629 abfd->symcount = obj_aout_external_sym_count (abfd);
5630 exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
5631 obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
5632 obj_textsec (abfd)->reloc_count =
5633 exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
5634 obj_datasec (abfd)->reloc_count =
5635 exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
252b5132 5636
116c20d2 5637 /* Write out the string table, unless there are no symbols. */
f6e688f7
AM		 5638 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0)
5639 goto error_return;
116c20d2
NC		 5640 if (abfd->symcount > 0)
5641 {
f6e688f7 5642 if (!emit_stringtab (abfd, aout_info.strtab))
116c20d2
NC		 5643 goto error_return;
5644 }
f6e688f7 5645 else
116c20d2 5646 {
f6e688f7 5647 bfd_byte b[BYTES_IN_WORD];
252b5132 5648
f6e688f7
AM		 5649 memset (b, 0, BYTES_IN_WORD);
5650 if (bfd_bwrite (b, (bfd_size_type) BYTES_IN_WORD, abfd) != BYTES_IN_WORD)
116c20d2
NC		 5651 goto error_return;
5652 }
252b5132 5653
b34976b6 5654 return TRUE;
116c20d2
NC		 5655
5656 error_return:
5657 if (aout_info.contents != NULL)
5658 free (aout_info.contents);
5659 if (aout_info.relocs != NULL)
5660 free (aout_info.relocs);
5661 if (aout_info.symbol_map != NULL)
5662 free (aout_info.symbol_map);
5663 if (aout_info.output_syms != NULL)
5664 free (aout_info.output_syms);
5665 if (includes_hash_initialized)
5666 bfd_hash_table_free (&aout_info.includes.root);
5667 return FALSE;
252b5132 5668}
GDB Binutils - Deliverables
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