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[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. */
3092 BFD_ASSERT (p + 1 < pend);
3093 ++p;
e517df3d
NC		 3094 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
3095 if (GET_WORD (abfd, p->e_strx) > obj_aout_external_string_size (abfd))
3096 return FALSE;
252b5132
RH		 3097 string = strings + GET_WORD (abfd, p->e_strx);
3098 section = bfd_ind_section_ptr;
3099 flags |= BSF_INDIRECT;
3100 break;
3101 case N_COMM | N_EXT:
3102 section = bfd_com_section_ptr;
3103 break;
3104 case N_SETA: case N_SETA | N_EXT:
3105 section = bfd_abs_section_ptr;
3106 flags |= BSF_CONSTRUCTOR;
3107 break;
3108 case N_SETT: case N_SETT | N_EXT:
3109 section = obj_textsec (abfd);
3110 flags |= BSF_CONSTRUCTOR;
3111 value -= bfd_get_section_vma (abfd, section);
3112 break;
3113 case N_SETD: case N_SETD | N_EXT:
3114 section = obj_datasec (abfd);
3115 flags |= BSF_CONSTRUCTOR;
3116 value -= bfd_get_section_vma (abfd, section);
3117 break;
3118 case N_SETB: case N_SETB | N_EXT:
3119 section = obj_bsssec (abfd);
3120 flags |= BSF_CONSTRUCTOR;
3121 value -= bfd_get_section_vma (abfd, section);
3122 break;
3123 case N_WARNING:
3124 /* A warning symbol. The next symbol is the one to warn
9f400ee9
HPN		 3125 about. If there is no next symbol, just look away. */
3126 if (p + 1 >= pend)
3127 return TRUE;
252b5132
RH		 3128 ++p;
3129 string = name;
e517df3d
NC		 3130 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
3131 if (GET_WORD (abfd, p->e_strx) > obj_aout_external_string_size (abfd))
3132 return FALSE;
252b5132
RH		 3133 name = strings + GET_WORD (abfd, p->e_strx);
3134 section = bfd_und_section_ptr;
3135 flags |= BSF_WARNING;
3136 break;
3137 case N_WEAKU:
3138 section = bfd_und_section_ptr;
3139 flags = BSF_WEAK;
3140 break;
3141 case N_WEAKA:
3142 section = bfd_abs_section_ptr;
3143 flags = BSF_WEAK;
3144 break;
3145 case N_WEAKT:
3146 section = obj_textsec (abfd);
3147 value -= bfd_get_section_vma (abfd, section);
3148 flags = BSF_WEAK;
3149 break;
3150 case N_WEAKD:
3151 section = obj_datasec (abfd);
3152 value -= bfd_get_section_vma (abfd, section);
3153 flags = BSF_WEAK;
3154 break;
3155 case N_WEAKB:
3156 section = obj_bsssec (abfd);
3157 value -= bfd_get_section_vma (abfd, section);
3158 flags = BSF_WEAK;
3159 break;
3160 }
3161
3162 if (! ((*add_one_symbol)
b34976b6 3163 (info, abfd, name, flags, section, value, string, copy, FALSE,
252b5132 3164 (struct bfd_link_hash_entry **) sym_hash)))
b34976b6 3165 return FALSE;
252b5132
RH		 3166
3167 /* Restrict the maximum alignment of a common symbol based on
3168 the architecture, since a.out has no way to represent
3169 alignment requirements of a section in a .o file. FIXME:
3170 This isn't quite right: it should use the architecture of the
3171 output file, not the input files. */
3172 if ((*sym_hash)->root.type == bfd_link_hash_common
3173 && ((*sym_hash)->root.u.c.p->alignment_power >
3174 bfd_get_arch_info (abfd)->section_align_power))
3175 (*sym_hash)->root.u.c.p->alignment_power =
3176 bfd_get_arch_info (abfd)->section_align_power;
3177
3178 /* If this is a set symbol, and we are not building sets, then
3179 it is possible for the hash entry to not have been set. In
3180 such a case, treat the symbol as not globally defined. */
3181 if ((*sym_hash)->root.type == bfd_link_hash_new)
3182 {
3183 BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0);
3184 *sym_hash = NULL;
3185 }
3186
3187 if (type == (N_INDR | N_EXT) || type == N_WARNING)
3188 ++sym_hash;
3189 }
3190
b34976b6 3191 return TRUE;
252b5132 3192}
252b5132 3193
116c20d2
NC		 3194/* Free up the internal symbols read from an a.out file. */
3195
3196static bfd_boolean
3197aout_link_free_symbols (bfd *abfd)
252b5132 3198{
116c20d2
NC		 3199 if (obj_aout_external_syms (abfd) != NULL)
3200 {
3201#ifdef USE_MMAP
3202 bfd_free_window (&obj_aout_sym_window (abfd));
3203#else
3204 free ((void *) obj_aout_external_syms (abfd));
3205#endif
3206 obj_aout_external_syms (abfd) = NULL;
3207 }
3208 if (obj_aout_external_strings (abfd) != NULL)
3209 {
3210#ifdef USE_MMAP
3211 bfd_free_window (&obj_aout_string_window (abfd));
3212#else
3213 free ((void *) obj_aout_external_strings (abfd));
3214#endif
3215 obj_aout_external_strings (abfd) = NULL;
3216 }
3217 return TRUE;
3218}
252b5132 3219
116c20d2 3220/* Add symbols from an a.out object file. */
252b5132 3221
116c20d2
NC		 3222static bfd_boolean
3223aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 3224{
116c20d2
NC		 3225 if (! aout_get_external_symbols (abfd))
3226 return FALSE;
3227 if (! aout_link_add_symbols (abfd, info))
3228 return FALSE;
3229 if (! info->keep_memory)
3230 {
3231 if (! aout_link_free_symbols (abfd))
3232 return FALSE;
3233 }
3234 return TRUE;
3235}
252b5132 3236
116c20d2
NC		 3237/* Look through the internal symbols to see if this object file should
3238 be included in the link. We should include this object file if it
3239 defines any symbols which are currently undefined. If this object
3240 file defines a common symbol, then we may adjust the size of the
3241 known symbol but we do not include the object file in the link
3242 (unless there is some other reason to include it). */
252b5132 3243
116c20d2
NC		 3244static bfd_boolean
3245aout_link_check_ar_symbols (bfd *abfd,
3246 struct bfd_link_info *info,
5d3236ee
DK		 3247 bfd_boolean *pneeded,
3248 bfd **subsbfd)
252b5132 3249{
116c20d2
NC		 3250 struct external_nlist *p;
3251 struct external_nlist *pend;
3252 char *strings;
252b5132 3253
116c20d2 3254 *pneeded = FALSE;
252b5132 3255
116c20d2
NC		 3256 /* Look through all the symbols. */
3257 p = obj_aout_external_syms (abfd);
3258 pend = p + obj_aout_external_sym_count (abfd);
3259 strings = obj_aout_external_strings (abfd);
3260 for (; p < pend; p++)
3261 {
3262 int type = H_GET_8 (abfd, p->e_type);
3263 const char *name;
3264 struct bfd_link_hash_entry *h;
252b5132 3265
116c20d2
NC		 3266 /* Ignore symbols that are not externally visible. This is an
3267 optimization only, as we check the type more thoroughly
3268 below. */
3269 if (((type & N_EXT) == 0
3270 || (type & N_STAB) != 0
3271 || type == N_FN)
3272 && type != N_WEAKA
3273 && type != N_WEAKT
3274 && type != N_WEAKD
3275 && type != N_WEAKB)
3276 {
3277 if (type == N_WARNING
3278 || type == N_INDR)
3279 ++p;
3280 continue;
3281 }
3282
3283 name = strings + GET_WORD (abfd, p->e_strx);
3284 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
3285
3286 /* We are only interested in symbols that are currently
3287 undefined or common. */
3288 if (h == NULL
3289 || (h->type != bfd_link_hash_undefined
3290 && h->type != bfd_link_hash_common))
3291 {
3292 if (type == (N_INDR | N_EXT))
3293 ++p;
3294 continue;
3295 }
3296
3297 if (type == (N_TEXT | N_EXT)
3298 || type == (N_DATA | N_EXT)
3299 || type == (N_BSS | N_EXT)
3300 || type == (N_ABS | N_EXT)
3301 || type == (N_INDR | N_EXT))
3302 {
3303 /* This object file defines this symbol. We must link it
3304 in. This is true regardless of whether the current
3305 definition of the symbol is undefined or common.
3306
3307 If the current definition is common, we have a case in
3308 which we have already seen an object file including:
3309 int a;
3310 and this object file from the archive includes:
3311 int a = 5;
3312 In such a case, whether to include this object is target
3313 dependant for backward compatibility.
3314
3315 FIXME: The SunOS 4.1.3 linker will pull in the archive
3316 element if the symbol is defined in the .data section,
3317 but not if it is defined in the .text section. That
3318 seems a bit crazy to me, and it has not been implemented
3319 yet. However, it might be correct. */
3320 if (h->type == bfd_link_hash_common)
3321 {
3322 int skip = 0;
3323
f88dc410 3324 switch (info->common_skip_ar_symbols)
116c20d2
NC		 3325 {
3326 case bfd_link_common_skip_text:
3327 skip = (type == (N_TEXT | N_EXT));
3328 break;
3329 case bfd_link_common_skip_data:
3330 skip = (type == (N_DATA | N_EXT));
3331 break;
3332 default:
3333 case bfd_link_common_skip_all:
3334 skip = 1;
3335 break;
3336 }
3337
3338 if (skip)
3339 continue;
3340 }
3341
0e144ba7
AM		 3342 if (!(*info->callbacks
3343 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3344 return FALSE;
3345 *pneeded = TRUE;
3346 return TRUE;
3347 }
3348
3349 if (type == (N_UNDF | N_EXT))
3350 {
3351 bfd_vma value;
3352
3353 value = GET_WORD (abfd, p->e_value);
3354 if (value != 0)
3355 {
3356 /* This symbol is common in the object from the archive
3357 file. */
3358 if (h->type == bfd_link_hash_undefined)
3359 {
3360 bfd *symbfd;
3361 unsigned int power;
3362
3363 symbfd = h->u.undef.abfd;
3364 if (symbfd == NULL)
3365 {
3366 /* This symbol was created as undefined from
3367 outside BFD. We assume that we should link
3368 in the object file. This is done for the -u
3369 option in the linker. */
0e144ba7
AM		 3370 if (!(*info->callbacks
3371 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3372 return FALSE;
3373 *pneeded = TRUE;
3374 return TRUE;
3375 }
3376 /* Turn the current link symbol into a common
3377 symbol. It is already on the undefs list. */
3378 h->type = bfd_link_hash_common;
a50b1753 3379 h->u.c.p = (struct bfd_link_hash_common_entry *)
0e144ba7
AM		 3380 bfd_hash_allocate (&info->hash->table,
3381 sizeof (struct bfd_link_hash_common_entry));
116c20d2
NC		 3382 if (h->u.c.p == NULL)
3383 return FALSE;
3384
3385 h->u.c.size = value;
3386
3387 /* FIXME: This isn't quite right. The maximum
3388 alignment of a common symbol should be set by the
3389 architecture of the output file, not of the input
3390 file. */
3391 power = bfd_log2 (value);
3392 if (power > bfd_get_arch_info (abfd)->section_align_power)
3393 power = bfd_get_arch_info (abfd)->section_align_power;
3394 h->u.c.p->alignment_power = power;
3395
3396 h->u.c.p->section = bfd_make_section_old_way (symbfd,
3397 "COMMON");
3398 }
3399 else
3400 {
3401 /* Adjust the size of the common symbol if
3402 necessary. */
3403 if (value > h->u.c.size)
3404 h->u.c.size = value;
3405 }
3406 }
3407 }
3408
3409 if (type == N_WEAKA
3410 || type == N_WEAKT
3411 || type == N_WEAKD
3412 || type == N_WEAKB)
3413 {
3414 /* This symbol is weak but defined. We must pull it in if
3415 the current link symbol is undefined, but we don't want
3416 it if the current link symbol is common. */
3417 if (h->type == bfd_link_hash_undefined)
3418 {
0e144ba7
AM		 3419 if (!(*info->callbacks
3420 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3421 return FALSE;
3422 *pneeded = TRUE;
3423 return TRUE;
3424 }
3425 }
3426 }
3427
3428 /* We do not need this object file. */
3429 return TRUE;
3430}
3431/* Check a single archive element to see if we need to include it in
3432 the link. *PNEEDED is set according to whether this element is
3433 needed in the link or not. This is called from
3434 _bfd_generic_link_add_archive_symbols. */
3435
3436static bfd_boolean
3437aout_link_check_archive_element (bfd *abfd,
3438 struct bfd_link_info *info,
13e570f8
AM		 3439 struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
3440 const char *name ATTRIBUTE_UNUSED,
116c20d2
NC		 3441 bfd_boolean *pneeded)
3442{
0e144ba7
AM		 3443 bfd *oldbfd;
3444 bfd_boolean needed;
5d3236ee 3445
0e144ba7 3446 if (!aout_get_external_symbols (abfd))
116c20d2
NC		 3447 return FALSE;
3448
0e144ba7
AM		 3449 oldbfd = abfd;
3450 if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd))
116c20d2
NC		 3451 return FALSE;
3452
0e144ba7
AM		 3453 needed = *pneeded;
3454 if (needed)
116c20d2 3455 {
5d3236ee
DK		 3456 /* Potentially, the add_archive_element hook may have set a
3457 substitute BFD for us. */
0e144ba7
AM		 3458 if (abfd != oldbfd)
3459 {
3460 if (!info->keep_memory
3461 && !aout_link_free_symbols (oldbfd))
3462 return FALSE;
3463 if (!aout_get_external_symbols (abfd))
3464 return FALSE;
3465 }
3466 if (!aout_link_add_symbols (abfd, info))
116c20d2
NC		 3467 return FALSE;
3468 }
3469
0e144ba7 3470 if (!info->keep_memory || !needed)
116c20d2 3471 {
0e144ba7 3472 if (!aout_link_free_symbols (abfd))
116c20d2
NC		 3473 return FALSE;
3474 }
3475
3476 return TRUE;
3477}
3478
3479/* Given an a.out BFD, add symbols to the global hash table as
3480 appropriate. */
3481
3482bfd_boolean
3483NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
3484{
3485 switch (bfd_get_format (abfd))
3486 {
3487 case bfd_object:
3488 return aout_link_add_object_symbols (abfd, info);
3489 case bfd_archive:
3490 return _bfd_generic_link_add_archive_symbols
3491 (abfd, info, aout_link_check_archive_element);
3492 default:
3493 bfd_set_error (bfd_error_wrong_format);
3494 return FALSE;
3495 }
3496}
3497\f
3498/* A hash table used for header files with N_BINCL entries. */
3499
3500struct aout_link_includes_table
3501{
3502 struct bfd_hash_table root;
3503};
3504
3505/* A linked list of totals that we have found for a particular header
3506 file. */
3507
3508struct aout_link_includes_totals
3509{
3510 struct aout_link_includes_totals *next;
3511 bfd_vma total;
3512};
3513
3514/* An entry in the header file hash table. */
3515
3516struct aout_link_includes_entry
3517{
3518 struct bfd_hash_entry root;
3519 /* List of totals we have found for this file. */
3520 struct aout_link_includes_totals *totals;
3521};
3522
3523/* Look up an entry in an the header file hash table. */
3524
3525#define aout_link_includes_lookup(table, string, create, copy) \
3526 ((struct aout_link_includes_entry *) \
3527 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
3528
3529/* During the final link step we need to pass around a bunch of
3530 information, so we do it in an instance of this structure. */
3531
3532struct aout_final_link_info
3533{
3534 /* General link information. */
3535 struct bfd_link_info *info;
3536 /* Output bfd. */
252b5132
RH		 3537 bfd *output_bfd;
3538 /* Reloc file positions. */
3539 file_ptr treloff, dreloff;
3540 /* File position of symbols. */
3541 file_ptr symoff;
3542 /* String table. */
3543 struct bfd_strtab_hash *strtab;
3544 /* Header file hash table. */
3545 struct aout_link_includes_table includes;
3546 /* A buffer large enough to hold the contents of any section. */
3547 bfd_byte *contents;
3548 /* A buffer large enough to hold the relocs of any section. */
116c20d2 3549 void * relocs;
252b5132
RH		 3550 /* A buffer large enough to hold the symbol map of any input BFD. */
3551 int *symbol_map;
3552 /* A buffer large enough to hold output symbols of any input BFD. */
3553 struct external_nlist *output_syms;
3554};
3555
252b5132
RH		 3556/* The function to create a new entry in the header file hash table. */
3557
3558static struct bfd_hash_entry *
116c20d2
NC		 3559aout_link_includes_newfunc (struct bfd_hash_entry *entry,
3560 struct bfd_hash_table *table,
3561 const char *string)
252b5132
RH		 3562{
3563 struct aout_link_includes_entry *ret =
3564 (struct aout_link_includes_entry *) entry;
3565
3566 /* Allocate the structure if it has not already been allocated by a
3567 subclass. */
116c20d2 3568 if (ret == NULL)
a50b1753
NC		 3569 ret = (struct aout_link_includes_entry *)
3570 bfd_hash_allocate (table, sizeof (* ret));
116c20d2
NC		 3571 if (ret == NULL)
3572 return NULL;
252b5132
RH		 3573
3574 /* Call the allocation method of the superclass. */
3575 ret = ((struct aout_link_includes_entry *)
3576 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
3577 if (ret)
3578 {
3579 /* Set local fields. */
3580 ret->totals = NULL;
3581 }
3582
3583 return (struct bfd_hash_entry *) ret;
3584}
3585
116c20d2
NC		 3586/* Write out a symbol that was not associated with an a.out input
3587 object. */
252b5132 3588
116c20d2 3589static bfd_boolean
7686d77d 3590aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data)
252b5132 3591{
7686d77d 3592 struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh;
57402f1e 3593 struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data;
116c20d2
NC		 3594 bfd *output_bfd;
3595 int type;
3596 bfd_vma val;
3597 struct external_nlist outsym;
3598 bfd_size_type indx;
3599 bfd_size_type amt;
252b5132 3600
116c20d2
NC		 3601 if (h->root.type == bfd_link_hash_warning)
3602 {
3603 h = (struct aout_link_hash_entry *) h->root.u.i.link;
3604 if (h->root.type == bfd_link_hash_new)
3605 return TRUE;
3606 }
252b5132 3607
57402f1e 3608 output_bfd = flaginfo->output_bfd;
252b5132 3609
116c20d2 3610 if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
252b5132 3611 {
116c20d2 3612 if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
57402f1e 3613 (output_bfd, flaginfo->info, h)))
252b5132 3614 {
116c20d2
NC		 3615 /* FIXME: No way to handle errors. */
3616 abort ();
252b5132 3617 }
116c20d2 3618 }
252b5132 3619
116c20d2
NC		 3620 if (h->written)
3621 return TRUE;
252b5132 3622
116c20d2 3623 h->written = TRUE;
252b5132 3624
116c20d2
NC		 3625 /* An indx of -2 means the symbol must be written. */
3626 if (h->indx != -2
57402f1e
NC		 3627 && (flaginfo->info->strip == strip_all
3628 || (flaginfo->info->strip == strip_some
3629 && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string,
116c20d2
NC		 3630 FALSE, FALSE) == NULL)))
3631 return TRUE;
252b5132 3632
116c20d2 3633 switch (h->root.type)
252b5132 3634 {
116c20d2
NC		 3635 default:
3636 case bfd_link_hash_warning:
3637 abort ();
3638 /* Avoid variable not initialized warnings. */
3639 return TRUE;
3640 case bfd_link_hash_new:
3641 /* This can happen for set symbols when sets are not being
3642 built. */
3643 return TRUE;
3644 case bfd_link_hash_undefined:
3645 type = N_UNDF | N_EXT;
3646 val = 0;
3647 break;
3648 case bfd_link_hash_defined:
3649 case bfd_link_hash_defweak:
3650 {
3651 asection *sec;
252b5132 3652
116c20d2
NC		 3653 sec = h->root.u.def.section->output_section;
3654 BFD_ASSERT (bfd_is_abs_section (sec)
3655 || sec->owner == output_bfd);
3656 if (sec == obj_textsec (output_bfd))
3657 type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
3658 else if (sec == obj_datasec (output_bfd))
3659 type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
3660 else if (sec == obj_bsssec (output_bfd))
3661 type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
3662 else
3663 type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
3664 type |= N_EXT;
3665 val = (h->root.u.def.value
3666 + sec->vma
3667 + h->root.u.def.section->output_offset);
3668 }
3669 break;
3670 case bfd_link_hash_common:
3671 type = N_UNDF | N_EXT;
3672 val = h->root.u.c.size;
3673 break;
3674 case bfd_link_hash_undefweak:
3675 type = N_WEAKU;
3676 val = 0;
c38eb2a6 3677 break;
116c20d2
NC		 3678 case bfd_link_hash_indirect:
3679 /* We ignore these symbols, since the indirected symbol is
3680 already in the hash table. */
3681 return TRUE;
3682 }
252b5132 3683
116c20d2
NC		 3684 H_PUT_8 (output_bfd, type, outsym.e_type);
3685 H_PUT_8 (output_bfd, 0, outsym.e_other);
3686 H_PUT_16 (output_bfd, 0, outsym.e_desc);
57402f1e 3687 indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string,
116c20d2
NC		 3688 FALSE);
3689 if (indx == - (bfd_size_type) 1)
3690 /* FIXME: No way to handle errors. */
3691 abort ();
252b5132 3692
116c20d2
NC		 3693 PUT_WORD (output_bfd, indx, outsym.e_strx);
3694 PUT_WORD (output_bfd, val, outsym.e_value);
252b5132 3695
116c20d2 3696 amt = EXTERNAL_NLIST_SIZE;
57402f1e 3697 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0
116c20d2
NC		 3698 || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt)
3699 /* FIXME: No way to handle errors. */
3700 abort ();
252b5132 3701
57402f1e 3702 flaginfo->symoff += EXTERNAL_NLIST_SIZE;
116c20d2
NC		 3703 h->indx = obj_aout_external_sym_count (output_bfd);
3704 ++obj_aout_external_sym_count (output_bfd);
252b5132 3705
116c20d2
NC		 3706 return TRUE;
3707}
252b5132 3708
116c20d2 3709/* Handle a link order which is supposed to generate a reloc. */
252b5132 3710
116c20d2 3711static bfd_boolean
57402f1e 3712aout_link_reloc_link_order (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3713 asection *o,
3714 struct bfd_link_order *p)
3715{
3716 struct bfd_link_order_reloc *pr;
3717 int r_index;
3718 int r_extern;
3719 reloc_howto_type *howto;
3720 file_ptr *reloff_ptr = NULL;
3721 struct reloc_std_external srel;
3722 struct reloc_ext_external erel;
3723 void * rel_ptr;
3724 bfd_size_type amt;
252b5132 3725
116c20d2 3726 pr = p->u.reloc.p;
252b5132 3727
116c20d2
NC		 3728 if (p->type == bfd_section_reloc_link_order)
3729 {
3730 r_extern = 0;
3731 if (bfd_is_abs_section (pr->u.section))
3732 r_index = N_ABS | N_EXT;
3733 else
3734 {
57402f1e 3735 BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd);
116c20d2
NC		 3736 r_index = pr->u.section->target_index;
3737 }
3738 }
3739 else
3740 {
3741 struct aout_link_hash_entry *h;
252b5132 3742
116c20d2
NC		 3743 BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
3744 r_extern = 1;
3745 h = ((struct aout_link_hash_entry *)
57402f1e 3746 bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info,
116c20d2
NC		 3747 pr->u.name, FALSE, FALSE, TRUE));
3748 if (h != NULL
3749 && h->indx >= 0)
3750 r_index = h->indx;
3751 else if (h != NULL)
3752 {
3753 /* We decided to strip this symbol, but it turns out that we
3754 can't. Note that we lose the other and desc information
3755 here. I don't think that will ever matter for a global
3756 symbol. */
3757 h->indx = -2;
3758 h->written = FALSE;
57402f1e 3759 if (!aout_link_write_other_symbol (&h->root.root, flaginfo))
116c20d2
NC		 3760 return FALSE;
3761 r_index = h->indx;
3762 }
3763 else
3764 {
1a72702b
AM		 3765 (*flaginfo->info->callbacks->unattached_reloc)
3766 (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0);
116c20d2
NC		 3767 r_index = 0;
3768 }
3769 }
252b5132 3770
57402f1e 3771 howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc);
116c20d2 3772 if (howto == 0)
252b5132 3773 {
116c20d2
NC		 3774 bfd_set_error (bfd_error_bad_value);
3775 return FALSE;
252b5132
RH		 3776 }
3777
57402f1e
NC		 3778 if (o == obj_textsec (flaginfo->output_bfd))
3779 reloff_ptr = &flaginfo->treloff;
3780 else if (o == obj_datasec (flaginfo->output_bfd))
3781 reloff_ptr = &flaginfo->dreloff;
116c20d2
NC		 3782 else
3783 abort ();
3784
57402f1e 3785 if (obj_reloc_entry_size (flaginfo->output_bfd) == RELOC_STD_SIZE)
252b5132 3786 {
116c20d2 3787#ifdef MY_put_reloc
57402f1e 3788 MY_put_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset, howto,
116c20d2
NC		 3789 &srel);
3790#else
3791 {
3792 int r_pcrel;
3793 int r_baserel;
3794 int r_jmptable;
3795 int r_relative;
3796 int r_length;
252b5132 3797
116c20d2
NC		 3798 r_pcrel = (int) howto->pc_relative;
3799 r_baserel = (howto->type & 8) != 0;
3800 r_jmptable = (howto->type & 16) != 0;
3801 r_relative = (howto->type & 32) != 0;
3802 r_length = howto->size;
252b5132 3803
57402f1e
NC		 3804 PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address);
3805 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3806 {
3807 srel.r_index[0] = r_index >> 16;
3808 srel.r_index[1] = r_index >> 8;
3809 srel.r_index[2] = r_index;
3810 srel.r_type[0] =
3811 ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
3812 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
3813 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
3814 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
3815 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
3816 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
3817 }
3818 else
3819 {
3820 srel.r_index[2] = r_index >> 16;
3821 srel.r_index[1] = r_index >> 8;
3822 srel.r_index[0] = r_index;
3823 srel.r_type[0] =
3824 ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
3825 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
3826 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
3827 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
3828 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
3829 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
3830 }
3831 }
3832#endif
3833 rel_ptr = (void *) &srel;
252b5132 3834
116c20d2
NC		 3835 /* We have to write the addend into the object file, since
3836 standard a.out relocs are in place. It would be more
3837 reliable if we had the current contents of the file here,
3838 rather than assuming zeroes, but we can't read the file since
3839 it was opened using bfd_openw. */
3840 if (pr->addend != 0)
252b5132 3841 {
116c20d2
NC		 3842 bfd_size_type size;
3843 bfd_reloc_status_type r;
3844 bfd_byte *buf;
3845 bfd_boolean ok;
3846
3847 size = bfd_get_reloc_size (howto);
a50b1753 3848 buf = (bfd_byte *) bfd_zmalloc (size);
6346d5ca 3849 if (buf == NULL && size != 0)
116c20d2 3850 return FALSE;
57402f1e 3851 r = MY_relocate_contents (howto, flaginfo->output_bfd,
116c20d2
NC		 3852 (bfd_vma) pr->addend, buf);
3853 switch (r)
252b5132 3854 {
116c20d2
NC		 3855 case bfd_reloc_ok:
3856 break;
3857 default:
3858 case bfd_reloc_outofrange:
3859 abort ();
3860 case bfd_reloc_overflow:
1a72702b
AM		 3861 (*flaginfo->info->callbacks->reloc_overflow)
3862 (flaginfo->info, NULL,
3863 (p->type == bfd_section_reloc_link_order
3864 ? bfd_section_name (flaginfo->output_bfd,
3865 pr->u.section)
3866 : pr->u.name),
3867 howto->name, pr->addend, NULL, NULL, (bfd_vma) 0);
116c20d2 3868 break;
252b5132 3869 }
57402f1e 3870 ok = bfd_set_section_contents (flaginfo->output_bfd, o, (void *) buf,
116c20d2
NC		 3871 (file_ptr) p->offset, size);
3872 free (buf);
3873 if (! ok)
3874 return FALSE;
252b5132
RH		 3875 }
3876 }
116c20d2 3877 else
252b5132 3878 {
116c20d2 3879#ifdef MY_put_ext_reloc
57402f1e 3880 MY_put_ext_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset,
116c20d2
NC		 3881 howto, &erel, pr->addend);
3882#else
57402f1e 3883 PUT_WORD (flaginfo->output_bfd, p->offset, erel.r_address);
252b5132 3884
57402f1e 3885 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3886 {
3887 erel.r_index[0] = r_index >> 16;
3888 erel.r_index[1] = r_index >> 8;
3889 erel.r_index[2] = r_index;
3890 erel.r_type[0] =
3891 ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
3892 | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG));
3893 }
3894 else
3895 {
3896 erel.r_index[2] = r_index >> 16;
3897 erel.r_index[1] = r_index >> 8;
3898 erel.r_index[0] = r_index;
3899 erel.r_type[0] =
3900 (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
3901 | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
3902 }
252b5132 3903
57402f1e 3904 PUT_WORD (flaginfo->output_bfd, (bfd_vma) pr->addend, erel.r_addend);
116c20d2 3905#endif /* MY_put_ext_reloc */
252b5132 3906
116c20d2 3907 rel_ptr = (void *) &erel;
252b5132 3908 }
252b5132 3909
57402f1e
NC		 3910 amt = obj_reloc_entry_size (flaginfo->output_bfd);
3911 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
3912 || bfd_bwrite (rel_ptr, amt, flaginfo->output_bfd) != amt)
116c20d2 3913 return FALSE;
252b5132 3914
57402f1e 3915 *reloff_ptr += obj_reloc_entry_size (flaginfo->output_bfd);
252b5132 3916
116c20d2
NC		 3917 /* Assert that the relocs have not run into the symbols, and that n
3918 the text relocs have not run into the data relocs. */
57402f1e
NC		 3919 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
3920 && (reloff_ptr != &flaginfo->treloff
116c20d2 3921 || (*reloff_ptr
57402f1e 3922 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 3923
3924 return TRUE;
252b5132
RH		 3925}
3926
116c20d2 3927/* Get the section corresponding to a reloc index. */
252b5132 3928
116c20d2
NC		 3929static INLINE asection *
3930aout_reloc_index_to_section (bfd *abfd, int indx)
252b5132 3931{
116c20d2 3932 switch (indx & N_TYPE)
252b5132 3933 {
116c20d2
NC		 3934 case N_TEXT: return obj_textsec (abfd);
3935 case N_DATA: return obj_datasec (abfd);
3936 case N_BSS: return obj_bsssec (abfd);
3937 case N_ABS:
3938 case N_UNDF: return bfd_abs_section_ptr;
3939 default: abort ();
252b5132 3940 }
116c20d2 3941 return NULL;
252b5132
RH		 3942}
3943
116c20d2 3944/* Relocate an a.out section using standard a.out relocs. */
252b5132 3945
b34976b6 3946static bfd_boolean
57402f1e 3947aout_link_input_section_std (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3948 bfd *input_bfd,
3949 asection *input_section,
3950 struct reloc_std_external *relocs,
3951 bfd_size_type rel_size,
3952 bfd_byte *contents)
252b5132 3953{
116c20d2
NC		 3954 bfd_boolean (*check_dynamic_reloc)
3955 (struct bfd_link_info *, bfd *, asection *,
3956 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
3957 bfd_vma *);
252b5132 3958 bfd *output_bfd;
116c20d2
NC		 3959 bfd_boolean relocatable;
3960 struct external_nlist *syms;
252b5132 3961 char *strings;
116c20d2 3962 struct aout_link_hash_entry **sym_hashes;
252b5132 3963 int *symbol_map;
116c20d2
NC		 3964 bfd_size_type reloc_count;
3965 struct reloc_std_external *rel;
3966 struct reloc_std_external *rel_end;
252b5132 3967
57402f1e 3968 output_bfd = flaginfo->output_bfd;
116c20d2 3969 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
252b5132 3970
116c20d2
NC		 3971 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE);
3972 BFD_ASSERT (input_bfd->xvec->header_byteorder
3973 == output_bfd->xvec->header_byteorder);
252b5132 3974
0e1862bb 3975 relocatable = bfd_link_relocatable (flaginfo->info);
116c20d2
NC		 3976 syms = obj_aout_external_syms (input_bfd);
3977 strings = obj_aout_external_strings (input_bfd);
3978 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 3979 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 3980
3981 reloc_count = rel_size / RELOC_STD_SIZE;
3982 rel = relocs;
3983 rel_end = rel + reloc_count;
3984 for (; rel < rel_end; rel++)
252b5132 3985 {
116c20d2
NC		 3986 bfd_vma r_addr;
3987 int r_index;
3988 int r_extern;
3989 int r_pcrel;
3990 int r_baserel = 0;
3991 reloc_howto_type *howto;
3992 struct aout_link_hash_entry *h = NULL;
3993 bfd_vma relocation;
3994 bfd_reloc_status_type r;
252b5132 3995
116c20d2 3996 r_addr = GET_SWORD (input_bfd, rel->r_address);
252b5132 3997
116c20d2
NC		 3998#ifdef MY_reloc_howto
3999 howto = MY_reloc_howto (input_bfd, rel, r_index, r_extern, r_pcrel);
4000#else
4001 {
4002 int r_jmptable;
4003 int r_relative;
4004 int r_length;
4005 unsigned int howto_idx;
252b5132 4006
116c20d2
NC		 4007 if (bfd_header_big_endian (input_bfd))
4008 {
4009 r_index = (((unsigned int) rel->r_index[0] << 16)
4010 | ((unsigned int) rel->r_index[1] << 8)
4011 | rel->r_index[2]);
4012 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
4013 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
4014 r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
4015 r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
4016 r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
4017 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
4018 >> RELOC_STD_BITS_LENGTH_SH_BIG);
4019 }
4020 else
4021 {
4022 r_index = (((unsigned int) rel->r_index[2] << 16)
4023 | ((unsigned int) rel->r_index[1] << 8)
4024 | rel->r_index[0]);
4025 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
4026 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
4027 r_baserel = (0 != (rel->r_type[0]
4028 & RELOC_STD_BITS_BASEREL_LITTLE));
4029 r_jmptable= (0 != (rel->r_type[0]
4030 & RELOC_STD_BITS_JMPTABLE_LITTLE));
4031 r_relative= (0 != (rel->r_type[0]
4032 & RELOC_STD_BITS_RELATIVE_LITTLE));
4033 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
4034 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
4035 }
252b5132 4036
116c20d2
NC		 4037 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
4038 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 4039 if (howto_idx < TABLE_SIZE (howto_table_std))
4040 howto = howto_table_std + howto_idx;
4041 else
4042 howto = NULL;
116c20d2
NC		 4043 }
4044#endif
252b5132 4045
ad756e3f
AM		 4046 if (howto == NULL)
4047 {
57402f1e 4048 (*flaginfo->info->callbacks->einfo)
ad756e3f
AM		 4049 (_("%P: %B: unexpected relocation type\n"), input_bfd);
4050 bfd_set_error (bfd_error_bad_value);
4051 return FALSE;
4052 }
4053
116c20d2 4054 if (relocatable)
252b5132 4055 {
116c20d2
NC		 4056 /* We are generating a relocatable output file, and must
4057 modify the reloc accordingly. */
4058 if (r_extern)
252b5132 4059 {
116c20d2
NC		 4060 /* If we know the symbol this relocation is against,
4061 convert it into a relocation against a section. This
4062 is what the native linker does. */
4063 h = sym_hashes[r_index];
4064 if (h != NULL
4065 && (h->root.type == bfd_link_hash_defined
4066 || h->root.type == bfd_link_hash_defweak))
252b5132 4067 {
252b5132
RH		 4068 asection *output_section;
4069
116c20d2
NC		 4070 /* Change the r_extern value. */
4071 if (bfd_header_big_endian (output_bfd))
4072 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_BIG;
4073 else
4074 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE;
252b5132 4075
116c20d2
NC		 4076 /* Compute a new r_index. */
4077 output_section = h->root.u.def.section->output_section;
252b5132 4078 if (output_section == obj_textsec (output_bfd))
116c20d2 4079 r_index = N_TEXT;
252b5132 4080 else if (output_section == obj_datasec (output_bfd))
116c20d2 4081 r_index = N_DATA;
252b5132 4082 else if (output_section == obj_bsssec (output_bfd))
116c20d2 4083 r_index = N_BSS;
252b5132 4084 else
116c20d2 4085 r_index = N_ABS;
252b5132 4086
116c20d2
NC		 4087 /* Add the symbol value and the section VMA to the
4088 addend stored in the contents. */
4089 relocation = (h->root.u.def.value
4090 + output_section->vma
4091 + h->root.u.def.section->output_offset);
252b5132 4092 }
116c20d2 4093 else
252b5132 4094 {
116c20d2
NC		 4095 /* We must change r_index according to the symbol
4096 map. */
4097 r_index = symbol_map[r_index];
252b5132 4098
116c20d2 4099 if (r_index == -1)
252b5132 4100 {
116c20d2 4101 if (h != NULL)
252b5132 4102 {
116c20d2
NC		 4103 /* We decided to strip this symbol, but it
4104 turns out that we can't. Note that we
4105 lose the other and desc information here.
4106 I don't think that will ever matter for a
4107 global symbol. */
4108 if (h->indx < 0)
252b5132 4109 {
116c20d2
NC		 4110 h->indx = -2;
4111 h->written = FALSE;
7686d77d 4112 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4113 flaginfo))
116c20d2 4114 return FALSE;
252b5132 4115 }
116c20d2
NC		 4116 r_index = h->indx;
4117 }
4118 else
4119 {
4120 const char *name;
4121
4122 name = strings + GET_WORD (input_bfd,
4123 syms[r_index].e_strx);
1a72702b
AM		 4124 (*flaginfo->info->callbacks->unattached_reloc)
4125 (flaginfo->info, name,
4126 input_bfd, input_section, r_addr);
116c20d2 4127 r_index = 0;
252b5132
RH		 4128 }
4129 }
116c20d2
NC		 4130
4131 relocation = 0;
252b5132
RH		 4132 }
4133
116c20d2
NC		 4134 /* Write out the new r_index value. */
4135 if (bfd_header_big_endian (output_bfd))
252b5132 4136 {
116c20d2
NC		 4137 rel->r_index[0] = r_index >> 16;
4138 rel->r_index[1] = r_index >> 8;
4139 rel->r_index[2] = r_index;
252b5132
RH		 4140 }
4141 else
4142 {
116c20d2
NC		 4143 rel->r_index[2] = r_index >> 16;
4144 rel->r_index[1] = r_index >> 8;
4145 rel->r_index[0] = r_index;
252b5132
RH		 4146 }
4147 }
252b5132 4148 else
116c20d2
NC		 4149 {
4150 asection *section;
252b5132 4151
116c20d2
NC		 4152 /* This is a relocation against a section. We must
4153 adjust by the amount that the section moved. */
4154 section = aout_reloc_index_to_section (input_bfd, r_index);
4155 relocation = (section->output_section->vma
4156 + section->output_offset
4157 - section->vma);
4158 }
252b5132 4159
116c20d2
NC		 4160 /* Change the address of the relocation. */
4161 PUT_WORD (output_bfd,
4162 r_addr + input_section->output_offset,
4163 rel->r_address);
252b5132 4164
116c20d2
NC		 4165 /* Adjust a PC relative relocation by removing the reference
4166 to the original address in the section and including the
4167 reference to the new address. */
4168 if (r_pcrel)
4169 relocation -= (input_section->output_section->vma
4170 + input_section->output_offset
4171 - input_section->vma);
e92d460e 4172
116c20d2
NC		 4173#ifdef MY_relocatable_reloc
4174 MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
4175#endif
252b5132 4176
116c20d2
NC		 4177 if (relocation == 0)
4178 r = bfd_reloc_ok;
4179 else
4180 r = MY_relocate_contents (howto,
4181 input_bfd, relocation,
4182 contents + r_addr);
252b5132 4183 }
116c20d2
NC		 4184 else
4185 {
4186 bfd_boolean hundef;
252b5132 4187
116c20d2
NC		 4188 /* We are generating an executable, and must do a full
4189 relocation. */
4190 hundef = FALSE;
252b5132 4191
116c20d2
NC		 4192 if (r_extern)
4193 {
4194 h = sym_hashes[r_index];
252b5132 4195
116c20d2
NC		 4196 if (h != NULL
4197 && (h->root.type == bfd_link_hash_defined
4198 || h->root.type == bfd_link_hash_defweak))
4199 {
4200 relocation = (h->root.u.def.value
4201 + h->root.u.def.section->output_section->vma
4202 + h->root.u.def.section->output_offset);
4203 }
4204 else if (h != NULL
4205 && h->root.type == bfd_link_hash_undefweak)
4206 relocation = 0;
4207 else
4208 {
4209 hundef = TRUE;
4210 relocation = 0;
4211 }
4212 }
4213 else
4214 {
4215 asection *section;
252b5132 4216
116c20d2
NC		 4217 section = aout_reloc_index_to_section (input_bfd, r_index);
4218 relocation = (section->output_section->vma
4219 + section->output_offset
4220 - section->vma);
4221 if (r_pcrel)
4222 relocation += input_section->vma;
4223 }
252b5132 4224
116c20d2
NC		 4225 if (check_dynamic_reloc != NULL)
4226 {
4227 bfd_boolean skip;
252b5132 4228
116c20d2 4229 if (! ((*check_dynamic_reloc)
57402f1e 4230 (flaginfo->info, input_bfd, input_section, h,
116c20d2
NC		 4231 (void *) rel, contents, &skip, &relocation)))
4232 return FALSE;
4233 if (skip)
4234 continue;
4235 }
252b5132 4236
116c20d2
NC		 4237 /* Now warn if a global symbol is undefined. We could not
4238 do this earlier, because check_dynamic_reloc might want
4239 to skip this reloc. */
0e1862bb 4240 if (hundef && ! bfd_link_pic (flaginfo->info) && ! r_baserel)
116c20d2
NC		 4241 {
4242 const char *name;
252b5132 4243
116c20d2
NC		 4244 if (h != NULL)
4245 name = h->root.root.string;
4246 else
4247 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4248 (*flaginfo->info->callbacks->undefined_symbol)
4249 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
116c20d2 4250 }
252b5132 4251
116c20d2
NC		 4252 r = MY_final_link_relocate (howto,
4253 input_bfd, input_section,
4254 contents, r_addr, relocation,
4255 (bfd_vma) 0);
252b5132 4256 }
252b5132 4257
116c20d2
NC		 4258 if (r != bfd_reloc_ok)
4259 {
4260 switch (r)
4261 {
4262 default:
4263 case bfd_reloc_outofrange:
4264 abort ();
4265 case bfd_reloc_overflow:
4266 {
4267 const char *name;
252b5132 4268
116c20d2
NC		 4269 if (h != NULL)
4270 name = NULL;
4271 else if (r_extern)
4272 name = strings + GET_WORD (input_bfd,
4273 syms[r_index].e_strx);
4274 else
4275 {
4276 asection *s;
252b5132 4277
116c20d2
NC		 4278 s = aout_reloc_index_to_section (input_bfd, r_index);
4279 name = bfd_section_name (input_bfd, s);
4280 }
1a72702b
AM		 4281 (*flaginfo->info->callbacks->reloc_overflow)
4282 (flaginfo->info, (h ? &h->root : NULL), name, howto->name,
4283 (bfd_vma) 0, input_bfd, input_section, r_addr);
116c20d2
NC		 4284 }
4285 break;
4286 }
4287 }
252b5132
RH		 4288 }
4289
b34976b6 4290 return TRUE;
252b5132
RH		 4291}
4292
116c20d2 4293/* Relocate an a.out section using extended a.out relocs. */
252b5132 4294
b34976b6 4295static bfd_boolean
57402f1e 4296aout_link_input_section_ext (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4297 bfd *input_bfd,
4298 asection *input_section,
4299 struct reloc_ext_external *relocs,
4300 bfd_size_type rel_size,
4301 bfd_byte *contents)
252b5132 4302{
b34976b6 4303 bfd_boolean (*check_dynamic_reloc)
116c20d2
NC		 4304 (struct bfd_link_info *, bfd *, asection *,
4305 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
4306 bfd_vma *);
252b5132 4307 bfd *output_bfd;
1049f94e 4308 bfd_boolean relocatable;
252b5132
RH		 4309 struct external_nlist *syms;
4310 char *strings;
4311 struct aout_link_hash_entry **sym_hashes;
4312 int *symbol_map;
4313 bfd_size_type reloc_count;
116c20d2
NC		 4314 struct reloc_ext_external *rel;
4315 struct reloc_ext_external *rel_end;
252b5132 4316
57402f1e 4317 output_bfd = flaginfo->output_bfd;
252b5132
RH		 4318 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
4319
116c20d2 4320 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_EXT_SIZE);
252b5132
RH		 4321 BFD_ASSERT (input_bfd->xvec->header_byteorder
4322 == output_bfd->xvec->header_byteorder);
4323
0e1862bb 4324 relocatable = bfd_link_relocatable (flaginfo->info);
252b5132
RH		 4325 syms = obj_aout_external_syms (input_bfd);
4326 strings = obj_aout_external_strings (input_bfd);
4327 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4328 symbol_map = flaginfo->symbol_map;
252b5132 4329
116c20d2 4330 reloc_count = rel_size / RELOC_EXT_SIZE;
252b5132
RH		 4331 rel = relocs;
4332 rel_end = rel + reloc_count;
4333 for (; rel < rel_end; rel++)
4334 {
4335 bfd_vma r_addr;
4336 int r_index;
4337 int r_extern;
116c20d2
NC		 4338 unsigned int r_type;
4339 bfd_vma r_addend;
252b5132 4340 struct aout_link_hash_entry *h = NULL;
116c20d2 4341 asection *r_section = NULL;
252b5132 4342 bfd_vma relocation;
252b5132
RH		 4343
4344 r_addr = GET_SWORD (input_bfd, rel->r_address);
4345
116c20d2
NC		 4346 if (bfd_header_big_endian (input_bfd))
4347 {
4348 r_index = (((unsigned int) rel->r_index[0] << 16)
4349 | ((unsigned int) rel->r_index[1] << 8)
4350 | rel->r_index[2]);
4351 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
4352 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
4353 >> RELOC_EXT_BITS_TYPE_SH_BIG);
4354 }
4355 else
4356 {
4357 r_index = (((unsigned int) rel->r_index[2] << 16)
4358 | ((unsigned int) rel->r_index[1] << 8)
4359 | rel->r_index[0]);
4360 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
4361 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
4362 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
4363 }
252b5132 4364
116c20d2 4365 r_addend = GET_SWORD (input_bfd, rel->r_addend);
252b5132 4366
ad756e3f
AM		 4367 if (r_type >= TABLE_SIZE (howto_table_ext))
4368 {
57402f1e 4369 (*flaginfo->info->callbacks->einfo)
ad756e3f
AM		 4370 (_("%P: %B: unexpected relocation type\n"), input_bfd);
4371 bfd_set_error (bfd_error_bad_value);
4372 return FALSE;
4373 }
252b5132 4374
1049f94e 4375 if (relocatable)
252b5132 4376 {
1049f94e 4377 /* We are generating a relocatable output file, and must
252b5132 4378 modify the reloc accordingly. */
116c20d2
NC		 4379 if (r_extern
4380 || r_type == (unsigned int) RELOC_BASE10
4381 || r_type == (unsigned int) RELOC_BASE13
4382 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 4383 {
4384 /* If we know the symbol this relocation is against,
4385 convert it into a relocation against a section. This
4386 is what the native linker does. */
116c20d2
NC		 4387 if (r_type == (unsigned int) RELOC_BASE10
4388 || r_type == (unsigned int) RELOC_BASE13
4389 || r_type == (unsigned int) RELOC_BASE22)
4390 h = NULL;
4391 else
4392 h = sym_hashes[r_index];
4393 if (h != NULL
252b5132
RH		 4394 && (h->root.type == bfd_link_hash_defined
4395 || h->root.type == bfd_link_hash_defweak))
4396 {
4397 asection *output_section;
4398
4399 /* Change the r_extern value. */
4400 if (bfd_header_big_endian (output_bfd))
116c20d2 4401 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_BIG;
252b5132 4402 else
116c20d2 4403 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE;
252b5132
RH		 4404
4405 /* Compute a new r_index. */
4406 output_section = h->root.u.def.section->output_section;
4407 if (output_section == obj_textsec (output_bfd))
4408 r_index = N_TEXT;
4409 else if (output_section == obj_datasec (output_bfd))
4410 r_index = N_DATA;
4411 else if (output_section == obj_bsssec (output_bfd))
4412 r_index = N_BSS;
4413 else
4414 r_index = N_ABS;
4415
4416 /* Add the symbol value and the section VMA to the
116c20d2 4417 addend. */
252b5132
RH		 4418 relocation = (h->root.u.def.value
4419 + output_section->vma
4420 + h->root.u.def.section->output_offset);
116c20d2
NC		 4421
4422 /* Now RELOCATION is the VMA of the final
4423 destination. If this is a PC relative reloc,
4424 then ADDEND is the negative of the source VMA.
4425 We want to set ADDEND to the difference between
4426 the destination VMA and the source VMA, which
4427 means we must adjust RELOCATION by the change in
4428 the source VMA. This is done below. */
252b5132
RH		 4429 }
4430 else
4431 {
4432 /* We must change r_index according to the symbol
4433 map. */
4434 r_index = symbol_map[r_index];
4435
4436 if (r_index == -1)
4437 {
4438 if (h != NULL)
4439 {
4440 /* We decided to strip this symbol, but it
4441 turns out that we can't. Note that we
4442 lose the other and desc information here.
4443 I don't think that will ever matter for a
4444 global symbol. */
4445 if (h->indx < 0)
4446 {
4447 h->indx = -2;
b34976b6 4448 h->written = FALSE;
7686d77d 4449 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4450 flaginfo))
b34976b6 4451 return FALSE;
252b5132
RH		 4452 }
4453 r_index = h->indx;
4454 }
4455 else
4456 {
4457 const char *name;
4458
4459 name = strings + GET_WORD (input_bfd,
4460 syms[r_index].e_strx);
1a72702b
AM		 4461 (*flaginfo->info->callbacks->unattached_reloc)
4462 (flaginfo->info, name,
4463 input_bfd, input_section, r_addr);
252b5132
RH		 4464 r_index = 0;
4465 }
4466 }
4467
4468 relocation = 0;
116c20d2
NC		 4469
4470 /* If this is a PC relative reloc, then the addend
4471 is the negative of the source VMA. We must
4472 adjust it by the change in the source VMA. This
4473 is done below. */
252b5132
RH		 4474 }
4475
4476 /* Write out the new r_index value. */
4477 if (bfd_header_big_endian (output_bfd))
4478 {
4479 rel->r_index[0] = r_index >> 16;
4480 rel->r_index[1] = r_index >> 8;
4481 rel->r_index[2] = r_index;
4482 }
4483 else
4484 {
4485 rel->r_index[2] = r_index >> 16;
4486 rel->r_index[1] = r_index >> 8;
4487 rel->r_index[0] = r_index;
4488 }
4489 }
4490 else
4491 {
252b5132
RH		 4492 /* This is a relocation against a section. We must
4493 adjust by the amount that the section moved. */
116c20d2
NC		 4494 r_section = aout_reloc_index_to_section (input_bfd, r_index);
4495 relocation = (r_section->output_section->vma
4496 + r_section->output_offset
4497 - r_section->vma);
252b5132 4498
116c20d2
NC		 4499 /* If this is a PC relative reloc, then the addend is
4500 the difference in VMA between the destination and the
4501 source. We have just adjusted for the change in VMA
4502 of the destination, so we must also adjust by the
4503 change in VMA of the source. This is done below. */
4504 }
252b5132 4505
116c20d2
NC		 4506 /* As described above, we must always adjust a PC relative
4507 reloc by the change in VMA of the source. However, if
4508 pcrel_offset is set, then the addend does not include the
4509 location within the section, in which case we don't need
4510 to adjust anything. */
4511 if (howto_table_ext[r_type].pc_relative
4512 && ! howto_table_ext[r_type].pcrel_offset)
252b5132
RH		 4513 relocation -= (input_section->output_section->vma
4514 + input_section->output_offset
4515 - input_section->vma);
4516
116c20d2
NC		 4517 /* Change the addend if necessary. */
4518 if (relocation != 0)
4519 PUT_WORD (output_bfd, r_addend + relocation, rel->r_addend);
252b5132 4520
116c20d2
NC		 4521 /* Change the address of the relocation. */
4522 PUT_WORD (output_bfd,
4523 r_addr + input_section->output_offset,
4524 rel->r_address);
252b5132
RH		 4525 }
4526 else
4527 {
b34976b6 4528 bfd_boolean hundef;
116c20d2 4529 bfd_reloc_status_type r;
252b5132
RH		 4530
4531 /* We are generating an executable, and must do a full
4532 relocation. */
b34976b6 4533 hundef = FALSE;
252b5132
RH		 4534
4535 if (r_extern)
4536 {
4537 h = sym_hashes[r_index];
4538
116c20d2 4539 if (h != NULL
252b5132
RH		 4540 && (h->root.type == bfd_link_hash_defined
4541 || h->root.type == bfd_link_hash_defweak))
4542 {
4543 relocation = (h->root.u.def.value
4544 + h->root.u.def.section->output_section->vma
4545 + h->root.u.def.section->output_offset);
4546 }
116c20d2 4547 else if (h != NULL
252b5132
RH		 4548 && h->root.type == bfd_link_hash_undefweak)
4549 relocation = 0;
4550 else
4551 {
b34976b6 4552 hundef = TRUE;
252b5132
RH		 4553 relocation = 0;
4554 }
4555 }
116c20d2
NC		 4556 else if (r_type == (unsigned int) RELOC_BASE10
4557 || r_type == (unsigned int) RELOC_BASE13
4558 || r_type == (unsigned int) RELOC_BASE22)
4559 {
4560 struct external_nlist *sym;
4561 int type;
4562
4563 /* For base relative relocs, r_index is always an index
4564 into the symbol table, even if r_extern is 0. */
4565 sym = syms + r_index;
4566 type = H_GET_8 (input_bfd, sym->e_type);
4567 if ((type & N_TYPE) == N_TEXT
4568 || type == N_WEAKT)
4569 r_section = obj_textsec (input_bfd);
4570 else if ((type & N_TYPE) == N_DATA
4571 || type == N_WEAKD)
4572 r_section = obj_datasec (input_bfd);
4573 else if ((type & N_TYPE) == N_BSS
4574 || type == N_WEAKB)
4575 r_section = obj_bsssec (input_bfd);
4576 else if ((type & N_TYPE) == N_ABS
4577 || type == N_WEAKA)
4578 r_section = bfd_abs_section_ptr;
4579 else
4580 abort ();
4581 relocation = (r_section->output_section->vma
4582 + r_section->output_offset
4583 + (GET_WORD (input_bfd, sym->e_value)
4584 - r_section->vma));
4585 }
252b5132
RH		 4586 else
4587 {
116c20d2 4588 r_section = aout_reloc_index_to_section (input_bfd, r_index);
252b5132 4589
116c20d2
NC		 4590 /* If this is a PC relative reloc, then R_ADDEND is the
4591 difference between the two vmas, or
4592 old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
4593 where
4594 old_dest_sec == section->vma
4595 and
4596 old_src_sec == input_section->vma
4597 and
4598 old_src_off == r_addr
4599
4600 _bfd_final_link_relocate expects RELOCATION +
4601 R_ADDEND to be the VMA of the destination minus
4602 r_addr (the minus r_addr is because this relocation
4603 is not pcrel_offset, which is a bit confusing and
4604 should, perhaps, be changed), or
4605 new_dest_sec
4606 where
4607 new_dest_sec == output_section->vma + output_offset
4608 We arrange for this to happen by setting RELOCATION to
4609 new_dest_sec + old_src_sec - old_dest_sec
4610
4611 If this is not a PC relative reloc, then R_ADDEND is
4612 simply the VMA of the destination, so we set
4613 RELOCATION to the change in the destination VMA, or
4614 new_dest_sec - old_dest_sec
4615 */
4616 relocation = (r_section->output_section->vma
4617 + r_section->output_offset
4618 - r_section->vma);
4619 if (howto_table_ext[r_type].pc_relative)
252b5132
RH		 4620 relocation += input_section->vma;
4621 }
4622
4623 if (check_dynamic_reloc != NULL)
4624 {
b34976b6 4625 bfd_boolean skip;
252b5132
RH		 4626
4627 if (! ((*check_dynamic_reloc)
57402f1e 4628 (flaginfo->info, input_bfd, input_section, h,
116c20d2 4629 (void *) rel, contents, &skip, &relocation)))
b34976b6 4630 return FALSE;
252b5132
RH		 4631 if (skip)
4632 continue;
4633 }
4634
4635 /* Now warn if a global symbol is undefined. We could not
4636 do this earlier, because check_dynamic_reloc might want
4637 to skip this reloc. */
116c20d2 4638 if (hundef
0e1862bb 4639 && ! bfd_link_pic (flaginfo->info)
116c20d2
NC		 4640 && r_type != (unsigned int) RELOC_BASE10
4641 && r_type != (unsigned int) RELOC_BASE13
4642 && r_type != (unsigned int) RELOC_BASE22)
252b5132
RH		 4643 {
4644 const char *name;
4645
4646 if (h != NULL)
4647 name = h->root.root.string;
4648 else
4649 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4650 (*flaginfo->info->callbacks->undefined_symbol)
4651 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
252b5132
RH		 4652 }
4653
116c20d2
NC		 4654 if (r_type != (unsigned int) RELOC_SPARC_REV32)
4655 r = MY_final_link_relocate (howto_table_ext + r_type,
4656 input_bfd, input_section,
4657 contents, r_addr, relocation,
4658 r_addend);
4659 else
252b5132 4660 {
116c20d2 4661 bfd_vma x;
252b5132 4662
116c20d2
NC		 4663 x = bfd_get_32 (input_bfd, contents + r_addr);
4664 x = x + relocation + r_addend;
4665 bfd_putl32 (/*input_bfd,*/ x, contents + r_addr);
4666 r = bfd_reloc_ok;
4667 }
4668
4669 if (r != bfd_reloc_ok)
4670 {
4671 switch (r)
4672 {
4673 default:
4674 case bfd_reloc_outofrange:
4675 abort ();
4676 case bfd_reloc_overflow:
252b5132 4677 {
116c20d2 4678 const char *name;
252b5132 4679
116c20d2
NC		 4680 if (h != NULL)
4681 name = NULL;
4682 else if (r_extern
4683 || r_type == (unsigned int) RELOC_BASE10
4684 || r_type == (unsigned int) RELOC_BASE13
4685 || r_type == (unsigned int) RELOC_BASE22)
4686 name = strings + GET_WORD (input_bfd,
4687 syms[r_index].e_strx);
4688 else
4689 {
4690 asection *s;
4691
4692 s = aout_reloc_index_to_section (input_bfd, r_index);
4693 name = bfd_section_name (input_bfd, s);
4694 }
1a72702b
AM		 4695 (*flaginfo->info->callbacks->reloc_overflow)
4696 (flaginfo->info, (h ? &h->root : NULL), name,
4697 howto_table_ext[r_type].name,
4698 r_addend, input_bfd, input_section, r_addr);
252b5132 4699 }
116c20d2
NC		 4700 break;
4701 }
252b5132
RH		 4702 }
4703 }
4704 }
4705
b34976b6 4706 return TRUE;
252b5132
RH		 4707}
4708
116c20d2
NC		 4709/* Link an a.out section into the output file. */
4710
4711static bfd_boolean
57402f1e 4712aout_link_input_section (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4713 bfd *input_bfd,
4714 asection *input_section,
4715 file_ptr *reloff_ptr,
4716 bfd_size_type rel_size)
4717{
4718 bfd_size_type input_size;
4719 void * relocs;
4720
4721 /* Get the section contents. */
4722 input_size = input_section->size;
4723 if (! bfd_get_section_contents (input_bfd, input_section,
57402f1e 4724 (void *) flaginfo->contents,
116c20d2
NC		 4725 (file_ptr) 0, input_size))
4726 return FALSE;
4727
4728 /* Read in the relocs if we haven't already done it. */
4729 if (aout_section_data (input_section) != NULL
4730 && aout_section_data (input_section)->relocs != NULL)
4731 relocs = aout_section_data (input_section)->relocs;
4732 else
4733 {
57402f1e 4734 relocs = flaginfo->relocs;
116c20d2
NC		 4735 if (rel_size > 0)
4736 {
4737 if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
4738 || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
4739 return FALSE;
4740 }
4741 }
4742
4743 /* Relocate the section contents. */
4744 if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE)
4745 {
57402f1e 4746 if (! aout_link_input_section_std (flaginfo, input_bfd, input_section,
116c20d2 4747 (struct reloc_std_external *) relocs,
57402f1e 4748 rel_size, flaginfo->contents))
116c20d2
NC		 4749 return FALSE;
4750 }
4751 else
4752 {
57402f1e 4753 if (! aout_link_input_section_ext (flaginfo, input_bfd, input_section,
116c20d2 4754 (struct reloc_ext_external *) relocs,
57402f1e 4755 rel_size, flaginfo->contents))
116c20d2
NC		 4756 return FALSE;
4757 }
4758
4759 /* Write out the section contents. */
57402f1e 4760 if (! bfd_set_section_contents (flaginfo->output_bfd,
116c20d2 4761 input_section->output_section,
57402f1e 4762 (void *) flaginfo->contents,
116c20d2
NC		 4763 (file_ptr) input_section->output_offset,
4764 input_size))
4765 return FALSE;
4766
4767 /* If we are producing relocatable output, the relocs were
4768 modified, and we now write them out. */
0e1862bb 4769 if (bfd_link_relocatable (flaginfo->info) && rel_size > 0)
116c20d2 4770 {
57402f1e 4771 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
116c20d2 4772 return FALSE;
57402f1e 4773 if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size)
116c20d2
NC		 4774 return FALSE;
4775 *reloff_ptr += rel_size;
4776
4777 /* Assert that the relocs have not run into the symbols, and
4778 that if these are the text relocs they have not run into the
4779 data relocs. */
57402f1e
NC		 4780 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
4781 && (reloff_ptr != &flaginfo->treloff
116c20d2 4782 || (*reloff_ptr
57402f1e 4783 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 4784 }
4785
4786 return TRUE;
4787}
4788
4789/* Adjust and write out the symbols for an a.out file. Set the new
4790 symbol indices into a symbol_map. */
252b5132 4791
b34976b6 4792static bfd_boolean
57402f1e 4793aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd)
252b5132 4794{
252b5132 4795 bfd *output_bfd;
116c20d2 4796 bfd_size_type sym_count;
252b5132 4797 char *strings;
116c20d2
NC		 4798 enum bfd_link_strip strip;
4799 enum bfd_link_discard discard;
4800 struct external_nlist *outsym;
4801 bfd_size_type strtab_index;
4802 struct external_nlist *sym;
4803 struct external_nlist *sym_end;
4804 struct aout_link_hash_entry **sym_hash;
252b5132 4805 int *symbol_map;
116c20d2
NC		 4806 bfd_boolean pass;
4807 bfd_boolean skip_next;
252b5132 4808
57402f1e 4809 output_bfd = flaginfo->output_bfd;
116c20d2
NC		 4810 sym_count = obj_aout_external_sym_count (input_bfd);
4811 strings = obj_aout_external_strings (input_bfd);
57402f1e
NC		 4812 strip = flaginfo->info->strip;
4813 discard = flaginfo->info->discard;
4814 outsym = flaginfo->output_syms;
252b5132 4815
116c20d2
NC		 4816 /* First write out a symbol for this object file, unless we are
4817 discarding such symbols. */
4818 if (strip != strip_all
4819 && (strip != strip_some
57402f1e 4820 || bfd_hash_lookup (flaginfo->info->keep_hash, input_bfd->filename,
116c20d2
NC		 4821 FALSE, FALSE) != NULL)
4822 && discard != discard_all)
4823 {
4824 H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
4825 H_PUT_8 (output_bfd, 0, outsym->e_other);
4826 H_PUT_16 (output_bfd, 0, outsym->e_desc);
57402f1e 4827 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 4828 input_bfd->filename, FALSE);
4829 if (strtab_index == (bfd_size_type) -1)
4830 return FALSE;
4831 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
4832 PUT_WORD (output_bfd,
4833 (bfd_get_section_vma (output_bfd,
4834 obj_textsec (input_bfd)->output_section)
4835 + obj_textsec (input_bfd)->output_offset),
4836 outsym->e_value);
4837 ++obj_aout_external_sym_count (output_bfd);
4838 ++outsym;
4839 }
252b5132 4840
116c20d2
NC		 4841 pass = FALSE;
4842 skip_next = FALSE;
4843 sym = obj_aout_external_syms (input_bfd);
4844 sym_end = sym + sym_count;
4845 sym_hash = obj_aout_sym_hashes (input_bfd);
57402f1e 4846 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4847 memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map);
4848 for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
252b5132 4849 {
116c20d2
NC		 4850 const char *name;
4851 int type;
4852 struct aout_link_hash_entry *h;
4853 bfd_boolean skip;
4854 asection *symsec;
4855 bfd_vma val = 0;
4856 bfd_boolean copy;
252b5132 4857
116c20d2
NC		 4858 /* We set *symbol_map to 0 above for all symbols. If it has
4859 already been set to -1 for this symbol, it means that we are
4860 discarding it because it appears in a duplicate header file.
4861 See the N_BINCL code below. */
4862 if (*symbol_map == -1)
4863 continue;
252b5132 4864
116c20d2
NC		 4865 /* Initialize *symbol_map to -1, which means that the symbol was
4866 not copied into the output file. We will change it later if
4867 we do copy the symbol over. */
4868 *symbol_map = -1;
4869
4870 type = H_GET_8 (input_bfd, sym->e_type);
4871 name = strings + GET_WORD (input_bfd, sym->e_strx);
4872
4873 h = NULL;
4874
4875 if (pass)
252b5132 4876 {
116c20d2
NC		 4877 /* Pass this symbol through. It is the target of an
4878 indirect or warning symbol. */
4879 val = GET_WORD (input_bfd, sym->e_value);
4880 pass = FALSE;
252b5132 4881 }
116c20d2 4882 else if (skip_next)
252b5132 4883 {
116c20d2
NC		 4884 /* Skip this symbol, which is the target of an indirect
4885 symbol that we have changed to no longer be an indirect
4886 symbol. */
4887 skip_next = FALSE;
4888 continue;
252b5132 4889 }
116c20d2
NC		 4890 else
4891 {
4892 struct aout_link_hash_entry *hresolve;
252b5132 4893
116c20d2
NC		 4894 /* We have saved the hash table entry for this symbol, if
4895 there is one. Note that we could just look it up again
4896 in the hash table, provided we first check that it is an
4897 external symbol. */
4898 h = *sym_hash;
252b5132 4899
116c20d2
NC		 4900 /* Use the name from the hash table, in case the symbol was
4901 wrapped. */
4902 if (h != NULL
4903 && h->root.type != bfd_link_hash_warning)
4904 name = h->root.root.string;
252b5132 4905
116c20d2
NC		 4906 /* If this is an indirect or warning symbol, then change
4907 hresolve to the base symbol. We also change *sym_hash so
4908 that the relocation routines relocate against the real
4909 symbol. */
4910 hresolve = h;
4911 if (h != (struct aout_link_hash_entry *) NULL
4912 && (h->root.type == bfd_link_hash_indirect
4913 || h->root.type == bfd_link_hash_warning))
252b5132 4914 {
116c20d2
NC		 4915 hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
4916 while (hresolve->root.type == bfd_link_hash_indirect
4917 || hresolve->root.type == bfd_link_hash_warning)
4918 hresolve = ((struct aout_link_hash_entry *)
4919 hresolve->root.u.i.link);
4920 *sym_hash = hresolve;
4921 }
4922
4923 /* If the symbol has already been written out, skip it. */
4924 if (h != NULL
4925 && h->written)
4926 {
4927 if ((type & N_TYPE) == N_INDR
4928 || type == N_WARNING)
4929 skip_next = TRUE;
4930 *symbol_map = h->indx;
4931 continue;
4932 }
4933
4934 /* See if we are stripping this symbol. */
4935 skip = FALSE;
4936 switch (strip)
4937 {
4938 case strip_none:
4939 break;
4940 case strip_debugger:
4941 if ((type & N_STAB) != 0)
4942 skip = TRUE;
4943 break;
4944 case strip_some:
57402f1e 4945 if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE)
116c20d2
NC		 4946 == NULL)
4947 skip = TRUE;
4948 break;
4949 case strip_all:
4950 skip = TRUE;
4951 break;
4952 }
4953 if (skip)
4954 {
4955 if (h != NULL)
4956 h->written = TRUE;
4957 continue;
4958 }
4959
4960 /* Get the value of the symbol. */
4961 if ((type & N_TYPE) == N_TEXT
4962 || type == N_WEAKT)
4963 symsec = obj_textsec (input_bfd);
4964 else if ((type & N_TYPE) == N_DATA
4965 || type == N_WEAKD)
4966 symsec = obj_datasec (input_bfd);
4967 else if ((type & N_TYPE) == N_BSS
4968 || type == N_WEAKB)
4969 symsec = obj_bsssec (input_bfd);
4970 else if ((type & N_TYPE) == N_ABS
4971 || type == N_WEAKA)
4972 symsec = bfd_abs_section_ptr;
4973 else if (((type & N_TYPE) == N_INDR
4974 && (hresolve == NULL
4975 || (hresolve->root.type != bfd_link_hash_defined
4976 && hresolve->root.type != bfd_link_hash_defweak
4977 && hresolve->root.type != bfd_link_hash_common)))
4978 || type == N_WARNING)
4979 {
4980 /* Pass the next symbol through unchanged. The
4981 condition above for indirect symbols is so that if
4982 the indirect symbol was defined, we output it with
4983 the correct definition so the debugger will
4984 understand it. */
4985 pass = TRUE;
4986 val = GET_WORD (input_bfd, sym->e_value);
4987 symsec = NULL;
4988 }
4989 else if ((type & N_STAB) != 0)
4990 {
4991 val = GET_WORD (input_bfd, sym->e_value);
4992 symsec = NULL;
4993 }
4994 else
4995 {
4996 /* If we get here with an indirect symbol, it means that
4997 we are outputting it with a real definition. In such
4998 a case we do not want to output the next symbol,
4999 which is the target of the indirection. */
5000 if ((type & N_TYPE) == N_INDR)
5001 skip_next = TRUE;
5002
5003 symsec = NULL;
5004
5005 /* We need to get the value from the hash table. We use
5006 hresolve so that if we have defined an indirect
5007 symbol we output the final definition. */
5008 if (h == NULL)
5009 {
5010 switch (type & N_TYPE)
5011 {
5012 case N_SETT:
5013 symsec = obj_textsec (input_bfd);
5014 break;
5015 case N_SETD:
5016 symsec = obj_datasec (input_bfd);
5017 break;
5018 case N_SETB:
5019 symsec = obj_bsssec (input_bfd);
5020 break;
5021 case N_SETA:
5022 symsec = bfd_abs_section_ptr;
5023 break;
5024 default:
5025 val = 0;
5026 break;
5027 }
5028 }
5029 else if (hresolve->root.type == bfd_link_hash_defined
5030 || hresolve->root.type == bfd_link_hash_defweak)
252b5132 5031 {
116c20d2 5032 asection *input_section;
252b5132
RH		 5033 asection *output_section;
5034
116c20d2
NC		 5035 /* This case usually means a common symbol which was
5036 turned into a defined symbol. */
5037 input_section = hresolve->root.u.def.section;
5038 output_section = input_section->output_section;
5039 BFD_ASSERT (bfd_is_abs_section (output_section)
5040 || output_section->owner == output_bfd);
5041 val = (hresolve->root.u.def.value
5042 + bfd_get_section_vma (output_bfd, output_section)
5043 + input_section->output_offset);
5044
5045 /* Get the correct type based on the section. If
5046 this is a constructed set, force it to be
5047 globally visible. */
5048 if (type == N_SETT
5049 || type == N_SETD
5050 || type == N_SETB
5051 || type == N_SETA)
5052 type |= N_EXT;
5053
5054 type &=~ N_TYPE;
252b5132 5055
252b5132 5056 if (output_section == obj_textsec (output_bfd))
116c20d2
NC		 5057 type |= (hresolve->root.type == bfd_link_hash_defined
5058 ? N_TEXT
5059 : N_WEAKT);
252b5132 5060 else if (output_section == obj_datasec (output_bfd))
116c20d2
NC		 5061 type |= (hresolve->root.type == bfd_link_hash_defined
5062 ? N_DATA
5063 : N_WEAKD);
252b5132 5064 else if (output_section == obj_bsssec (output_bfd))
116c20d2
NC		 5065 type |= (hresolve->root.type == bfd_link_hash_defined
5066 ? N_BSS
5067 : N_WEAKB);
252b5132 5068 else
116c20d2
NC		 5069 type |= (hresolve->root.type == bfd_link_hash_defined
5070 ? N_ABS
5071 : N_WEAKA);
5072 }
5073 else if (hresolve->root.type == bfd_link_hash_common)
5074 val = hresolve->root.u.c.size;
5075 else if (hresolve->root.type == bfd_link_hash_undefweak)
5076 {
5077 val = 0;
5078 type = N_WEAKU;
252b5132
RH		 5079 }
5080 else
116c20d2
NC		 5081 val = 0;
5082 }
5083 if (symsec != NULL)
5084 val = (symsec->output_section->vma
5085 + symsec->output_offset
5086 + (GET_WORD (input_bfd, sym->e_value)
5087 - symsec->vma));
5088
5089 /* If this is a global symbol set the written flag, and if
5090 it is a local symbol see if we should discard it. */
5091 if (h != NULL)
5092 {
5093 h->written = TRUE;
5094 h->indx = obj_aout_external_sym_count (output_bfd);
5095 }
5096 else if ((type & N_TYPE) != N_SETT
5097 && (type & N_TYPE) != N_SETD
5098 && (type & N_TYPE) != N_SETB
5099 && (type & N_TYPE) != N_SETA)
5100 {
5101 switch (discard)
252b5132 5102 {
116c20d2
NC		 5103 case discard_none:
5104 case discard_sec_merge:
5105 break;
5106 case discard_l:
5107 if ((type & N_STAB) == 0
5108 && bfd_is_local_label_name (input_bfd, name))
5109 skip = TRUE;
5110 break;
5111 case discard_all:
5112 skip = TRUE;
5113 break;
5114 }
5115 if (skip)
5116 {
5117 pass = FALSE;
5118 continue;
5119 }
5120 }
252b5132 5121
116c20d2
NC		 5122 /* An N_BINCL symbol indicates the start of the stabs
5123 entries for a header file. We need to scan ahead to the
5124 next N_EINCL symbol, ignoring nesting, adding up all the
5125 characters in the symbol names, not including the file
5126 numbers in types (the first number after an open
5127 parenthesis). */
5128 if (type == (int) N_BINCL)
5129 {
5130 struct external_nlist *incl_sym;
5131 int nest;
5132 struct aout_link_includes_entry *incl_entry;
5133 struct aout_link_includes_totals *t;
5134
5135 val = 0;
5136 nest = 0;
5137 for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
5138 {
5139 int incl_type;
5140
5141 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5142 if (incl_type == (int) N_EINCL)
252b5132 5143 {
116c20d2
NC		 5144 if (nest == 0)
5145 break;
5146 --nest;
5147 }
5148 else if (incl_type == (int) N_BINCL)
5149 ++nest;
5150 else if (nest == 0)
5151 {
5152 const char *s;
5153
5154 s = strings + GET_WORD (input_bfd, incl_sym->e_strx);
5155 for (; *s != '\0'; s++)
252b5132 5156 {
116c20d2
NC		 5157 val += *s;
5158 if (*s == '(')
252b5132 5159 {
116c20d2
NC		 5160 /* Skip the file number. */
5161 ++s;
5162 while (ISDIGIT (*s))
5163 ++s;
5164 --s;
252b5132 5165 }
252b5132 5166 }
116c20d2
NC		 5167 }
5168 }
252b5132 5169
116c20d2
NC		 5170 /* If we have already included a header file with the
5171 same value, then replace this one with an N_EXCL
5172 symbol. */
57402f1e
NC		 5173 copy = (bfd_boolean) (! flaginfo->info->keep_memory);
5174 incl_entry = aout_link_includes_lookup (&flaginfo->includes,
116c20d2
NC		 5175 name, TRUE, copy);
5176 if (incl_entry == NULL)
5177 return FALSE;
5178 for (t = incl_entry->totals; t != NULL; t = t->next)
5179 if (t->total == val)
5180 break;
5181 if (t == NULL)
5182 {
5183 /* This is the first time we have seen this header
5184 file with this set of stabs strings. */
a50b1753 5185 t = (struct aout_link_includes_totals *)
57402f1e 5186 bfd_hash_allocate (&flaginfo->includes.root,
116c20d2
NC		 5187 sizeof *t);
5188 if (t == NULL)
5189 return FALSE;
5190 t->total = val;
5191 t->next = incl_entry->totals;
5192 incl_entry->totals = t;
5193 }
5194 else
5195 {
5196 int *incl_map;
5197
5198 /* This is a duplicate header file. We must change
5199 it to be an N_EXCL entry, and mark all the
5200 included symbols to prevent outputting them. */
5201 type = (int) N_EXCL;
5202
5203 nest = 0;
5204 for (incl_sym = sym + 1, incl_map = symbol_map + 1;
5205 incl_sym < sym_end;
5206 incl_sym++, incl_map++)
5207 {
5208 int incl_type;
5209
5210 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5211 if (incl_type == (int) N_EINCL)
5212 {
5213 if (nest == 0)
5214 {
5215 *incl_map = -1;
5216 break;
5217 }
5218 --nest;
252b5132 5219 }
116c20d2
NC		 5220 else if (incl_type == (int) N_BINCL)
5221 ++nest;
5222 else if (nest == 0)
5223 *incl_map = -1;
252b5132 5224 }
252b5132
RH		 5225 }
5226 }
116c20d2
NC		 5227 }
5228
5229 /* Copy this symbol into the list of symbols we are going to
5230 write out. */
5231 H_PUT_8 (output_bfd, type, outsym->e_type);
5232 H_PUT_8 (output_bfd, H_GET_8 (input_bfd, sym->e_other), outsym->e_other);
5233 H_PUT_16 (output_bfd, H_GET_16 (input_bfd, sym->e_desc), outsym->e_desc);
5234 copy = FALSE;
57402f1e 5235 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5236 {
5237 /* name points into a string table which we are going to
5238 free. If there is a hash table entry, use that string.
5239 Otherwise, copy name into memory. */
5240 if (h != NULL)
5241 name = h->root.root.string;
252b5132 5242 else
116c20d2
NC		 5243 copy = TRUE;
5244 }
57402f1e 5245 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 5246 name, copy);
5247 if (strtab_index == (bfd_size_type) -1)
5248 return FALSE;
5249 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
5250 PUT_WORD (output_bfd, val, outsym->e_value);
5251 *symbol_map = obj_aout_external_sym_count (output_bfd);
5252 ++obj_aout_external_sym_count (output_bfd);
5253 ++outsym;
5254 }
252b5132 5255
116c20d2 5256 /* Write out the output symbols we have just constructed. */
57402f1e 5257 if (outsym > flaginfo->output_syms)
116c20d2
NC		 5258 {
5259 bfd_size_type outsym_size;
252b5132 5260
57402f1e 5261 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0)
116c20d2 5262 return FALSE;
57402f1e 5263 outsym_size = outsym - flaginfo->output_syms;
116c20d2 5264 outsym_size *= EXTERNAL_NLIST_SIZE;
57402f1e 5265 if (bfd_bwrite ((void *) flaginfo->output_syms, outsym_size, output_bfd)
116c20d2
NC		 5266 != outsym_size)
5267 return FALSE;
57402f1e 5268 flaginfo->symoff += outsym_size;
116c20d2 5269 }
252b5132 5270
116c20d2
NC		 5271 return TRUE;
5272}
252b5132 5273
116c20d2 5274/* Link an a.out input BFD into the output file. */
252b5132 5275
116c20d2 5276static bfd_boolean
57402f1e 5277aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd)
116c20d2 5278{
116c20d2 5279 BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
252b5132 5280
116c20d2
NC		 5281 /* If this is a dynamic object, it may need special handling. */
5282 if ((input_bfd->flags & DYNAMIC) != 0
5283 && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
5284 return ((*aout_backend_info (input_bfd)->link_dynamic_object)
57402f1e 5285 (flaginfo->info, input_bfd));
252b5132 5286
116c20d2 5287 /* Get the symbols. We probably have them already, unless
57402f1e 5288 flaginfo->info->keep_memory is FALSE. */
116c20d2
NC		 5289 if (! aout_get_external_symbols (input_bfd))
5290 return FALSE;
252b5132 5291
116c20d2 5292 /* Write out the symbols and get a map of the new indices. The map
57402f1e
NC		 5293 is placed into flaginfo->symbol_map. */
5294 if (! aout_link_write_symbols (flaginfo, input_bfd))
116c20d2 5295 return FALSE;
252b5132 5296
116c20d2
NC		 5297 /* Relocate and write out the sections. These functions use the
5298 symbol map created by aout_link_write_symbols. The linker_mark
5299 field will be set if these sections are to be included in the
5300 link, which will normally be the case. */
5301 if (obj_textsec (input_bfd)->linker_mark)
5302 {
57402f1e 5303 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5304 obj_textsec (input_bfd),
57402f1e 5305 &flaginfo->treloff,
116c20d2
NC		 5306 exec_hdr (input_bfd)->a_trsize))
5307 return FALSE;
5308 }
5309 if (obj_datasec (input_bfd)->linker_mark)
5310 {
57402f1e 5311 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5312 obj_datasec (input_bfd),
57402f1e 5313 &flaginfo->dreloff,
116c20d2
NC		 5314 exec_hdr (input_bfd)->a_drsize))
5315 return FALSE;
5316 }
5317
5318 /* If we are not keeping memory, we don't need the symbols any
5319 longer. We still need them if we are keeping memory, because the
5320 strings in the hash table point into them. */
57402f1e 5321 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5322 {
5323 if (! aout_link_free_symbols (input_bfd))
5324 return FALSE;
5325 }
5326
5327 return TRUE;
5328}
5329
5330/* Do the final link step. This is called on the output BFD. The
5331 INFO structure should point to a list of BFDs linked through the
c72f2fb2 5332 link.next field which can be used to find each BFD which takes part
116c20d2
NC		 5333 in the output. Also, each section in ABFD should point to a list
5334 of bfd_link_order structures which list all the input sections for
5335 the output section. */
5336
5337bfd_boolean
5338NAME (aout, final_link) (bfd *abfd,
5339 struct bfd_link_info *info,
5340 void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *))
5341{
5342 struct aout_final_link_info aout_info;
5343 bfd_boolean includes_hash_initialized = FALSE;
5344 bfd *sub;
5345 bfd_size_type trsize, drsize;
5346 bfd_size_type max_contents_size;
5347 bfd_size_type max_relocs_size;
5348 bfd_size_type max_sym_count;
116c20d2
NC		 5349 struct bfd_link_order *p;
5350 asection *o;
5351 bfd_boolean have_link_order_relocs;
5352
0e1862bb 5353 if (bfd_link_pic (info))
116c20d2
NC		 5354 abfd->flags |= DYNAMIC;
5355
5356 aout_info.info = info;
5357 aout_info.output_bfd = abfd;
5358 aout_info.contents = NULL;
5359 aout_info.relocs = NULL;
5360 aout_info.symbol_map = NULL;
5361 aout_info.output_syms = NULL;
252b5132 5362
66eb6687
AM		 5363 if (!bfd_hash_table_init_n (&aout_info.includes.root,
5364 aout_link_includes_newfunc,
5365 sizeof (struct aout_link_includes_entry),
5366 251))
116c20d2
NC		 5367 goto error_return;
5368 includes_hash_initialized = TRUE;
252b5132 5369
116c20d2
NC		 5370 /* Figure out the largest section size. Also, if generating
5371 relocatable output, count the relocs. */
5372 trsize = 0;
5373 drsize = 0;
5374 max_contents_size = 0;
5375 max_relocs_size = 0;
5376 max_sym_count = 0;
c72f2fb2 5377 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2
NC		 5378 {
5379 bfd_size_type sz;
252b5132 5380
0e1862bb 5381 if (bfd_link_relocatable (info))
116c20d2
NC		 5382 {
5383 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
252b5132 5384 {
116c20d2
NC		 5385 trsize += exec_hdr (sub)->a_trsize;
5386 drsize += exec_hdr (sub)->a_drsize;
252b5132 5387 }
252b5132
RH		 5388 else
5389 {
116c20d2
NC		 5390 /* FIXME: We need to identify the .text and .data sections
5391 and call get_reloc_upper_bound and canonicalize_reloc to
5392 work out the number of relocs needed, and then multiply
5393 by the reloc size. */
4eca0228 5394 _bfd_error_handler
695344c0 5395 /* xgettext:c-format */
116c20d2
NC		 5396 (_("%s: relocatable link from %s to %s not supported"),
5397 bfd_get_filename (abfd),
5398 sub->xvec->name, abfd->xvec->name);
5399 bfd_set_error (bfd_error_invalid_operation);
5400 goto error_return;
252b5132 5401 }
116c20d2 5402 }
252b5132 5403
116c20d2
NC		 5404 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
5405 {
5406 sz = obj_textsec (sub)->size;
5407 if (sz > max_contents_size)
5408 max_contents_size = sz;
5409 sz = obj_datasec (sub)->size;
5410 if (sz > max_contents_size)
5411 max_contents_size = sz;
252b5132 5412
116c20d2
NC		 5413 sz = exec_hdr (sub)->a_trsize;
5414 if (sz > max_relocs_size)
5415 max_relocs_size = sz;
5416 sz = exec_hdr (sub)->a_drsize;
5417 if (sz > max_relocs_size)
5418 max_relocs_size = sz;
252b5132 5419
116c20d2
NC		 5420 sz = obj_aout_external_sym_count (sub);
5421 if (sz > max_sym_count)
5422 max_sym_count = sz;
252b5132
RH		 5423 }
5424 }
5425
0e1862bb 5426 if (bfd_link_relocatable (info))
116c20d2
NC		 5427 {
5428 if (obj_textsec (abfd) != NULL)
5429 trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
8423293d 5430 ->map_head.link_order)
116c20d2
NC		 5431 * obj_reloc_entry_size (abfd));
5432 if (obj_datasec (abfd) != NULL)
5433 drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
8423293d 5434 ->map_head.link_order)
116c20d2
NC		 5435 * obj_reloc_entry_size (abfd));
5436 }
252b5132 5437
116c20d2
NC		 5438 exec_hdr (abfd)->a_trsize = trsize;
5439 exec_hdr (abfd)->a_drsize = drsize;
252b5132 5440
116c20d2 5441 exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
252b5132 5442
116c20d2
NC		 5443 /* Adjust the section sizes and vmas according to the magic number.
5444 This sets a_text, a_data and a_bss in the exec_hdr and sets the
5445 filepos for each section. */
3a8c4a5b 5446 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
116c20d2 5447 goto error_return;
252b5132 5448
116c20d2
NC		 5449 /* The relocation and symbol file positions differ among a.out
5450 targets. We are passed a callback routine from the backend
5451 specific code to handle this.
5452 FIXME: At this point we do not know how much space the symbol
5453 table will require. This will not work for any (nonstandard)
5454 a.out target that needs to know the symbol table size before it
5455 can compute the relocation file positions. This may or may not
5456 be the case for the hp300hpux target, for example. */
5457 (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
5458 &aout_info.symoff);
5459 obj_textsec (abfd)->rel_filepos = aout_info.treloff;
5460 obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
5461 obj_sym_filepos (abfd) = aout_info.symoff;
252b5132 5462
116c20d2
NC		 5463 /* We keep a count of the symbols as we output them. */
5464 obj_aout_external_sym_count (abfd) = 0;
5465
5466 /* We accumulate the string table as we write out the symbols. */
5467 aout_info.strtab = _bfd_stringtab_init ();
5468 if (aout_info.strtab == NULL)
5469 goto error_return;
5470
5471 /* Allocate buffers to hold section contents and relocs. */
a50b1753 5472 aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
116c20d2 5473 aout_info.relocs = bfd_malloc (max_relocs_size);
c38eb2a6 5474 aout_info.symbol_map = (int *) bfd_malloc (max_sym_count * sizeof (int));
a50b1753
NC		 5475 aout_info.output_syms = (struct external_nlist *)
5476 bfd_malloc ((max_sym_count + 1) * sizeof (struct external_nlist));
116c20d2
NC		 5477 if ((aout_info.contents == NULL && max_contents_size != 0)
5478 || (aout_info.relocs == NULL && max_relocs_size != 0)
5479 || (aout_info.symbol_map == NULL && max_sym_count != 0)
5480 || aout_info.output_syms == NULL)
5481 goto error_return;
5482
5483 /* If we have a symbol named __DYNAMIC, force it out now. This is
5484 required by SunOS. Doing this here rather than in sunos.c is a
5485 hack, but it's easier than exporting everything which would be
5486 needed. */
5487 {
5488 struct aout_link_hash_entry *h;
5489
5490 h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
5491 FALSE, FALSE, FALSE);
5492 if (h != NULL)
7686d77d 5493 aout_link_write_other_symbol (&h->root.root, &aout_info);
116c20d2
NC		 5494 }
5495
5496 /* The most time efficient way to do the link would be to read all
5497 the input object files into memory and then sort out the
5498 information into the output file. Unfortunately, that will
5499 probably use too much memory. Another method would be to step
5500 through everything that composes the text section and write it
5501 out, and then everything that composes the data section and write
5502 it out, and then write out the relocs, and then write out the
5503 symbols. Unfortunately, that requires reading stuff from each
5504 input file several times, and we will not be able to keep all the
5505 input files open simultaneously, and reopening them will be slow.
5506
5507 What we do is basically process one input file at a time. We do
5508 everything we need to do with an input file once--copy over the
5509 section contents, handle the relocation information, and write
5510 out the symbols--and then we throw away the information we read
5511 from it. This approach requires a lot of lseeks of the output
5512 file, which is unfortunate but still faster than reopening a lot
5513 of files.
5514
5515 We use the output_has_begun field of the input BFDs to see
5516 whether we have already handled it. */
c72f2fb2 5517 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2 5518 sub->output_has_begun = FALSE;
252b5132 5519
116c20d2
NC		 5520 /* Mark all sections which are to be included in the link. This
5521 will normally be every section. We need to do this so that we
5522 can identify any sections which the linker has decided to not
5523 include. */
5524 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5525 {
8423293d 5526 for (p = o->map_head.link_order; p != NULL; p = p->next)
116c20d2
NC		 5527 if (p->type == bfd_indirect_link_order)
5528 p->u.indirect.section->linker_mark = TRUE;
252b5132
RH		 5529 }
5530
116c20d2
NC		 5531 have_link_order_relocs = FALSE;
5532 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5533 {
8423293d 5534 for (p = o->map_head.link_order;
116c20d2
NC		 5535 p != NULL;
5536 p = p->next)
252b5132 5537 {
116c20d2
NC		 5538 if (p->type == bfd_indirect_link_order
5539 && (bfd_get_flavour (p->u.indirect.section->owner)
5540 == bfd_target_aout_flavour))
252b5132 5541 {
116c20d2
NC		 5542 bfd *input_bfd;
5543
5544 input_bfd = p->u.indirect.section->owner;
5545 if (! input_bfd->output_has_begun)
252b5132 5546 {
116c20d2
NC		 5547 if (! aout_link_input_bfd (&aout_info, input_bfd))
5548 goto error_return;
5549 input_bfd->output_has_begun = TRUE;
252b5132 5550 }
252b5132 5551 }
116c20d2
NC		 5552 else if (p->type == bfd_section_reloc_link_order
5553 || p->type == bfd_symbol_reloc_link_order)
5554 {
5555 /* These are handled below. */
5556 have_link_order_relocs = TRUE;
5557 }
5558 else
5559 {
5560 if (! _bfd_default_link_order (abfd, info, o, p))
5561 goto error_return;
5562 }
252b5132
RH		 5563 }
5564 }
252b5132 5565
116c20d2 5566 /* Write out any symbols that we have not already written out. */
7686d77d
AM		 5567 bfd_hash_traverse (&info->hash->table,
5568 aout_link_write_other_symbol,
5569 &aout_info);
116c20d2
NC		 5570
5571 /* Now handle any relocs we were asked to create by the linker.
5572 These did not come from any input file. We must do these after
5573 we have written out all the symbols, so that we know the symbol
5574 indices to use. */
5575 if (have_link_order_relocs)
5576 {
5577 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5578 {
8423293d 5579 for (p = o->map_head.link_order;
116c20d2
NC		 5580 p != NULL;
5581 p = p->next)
5582 {
5583 if (p->type == bfd_section_reloc_link_order
5584 || p->type == bfd_symbol_reloc_link_order)
5585 {
5586 if (! aout_link_reloc_link_order (&aout_info, o, p))
5587 goto error_return;
5588 }
5589 }
252b5132 5590 }
116c20d2 5591 }
252b5132 5592
116c20d2
NC		 5593 if (aout_info.contents != NULL)
5594 {
5595 free (aout_info.contents);
5596 aout_info.contents = NULL;
5597 }
5598 if (aout_info.relocs != NULL)
5599 {
5600 free (aout_info.relocs);
5601 aout_info.relocs = NULL;
5602 }
5603 if (aout_info.symbol_map != NULL)
5604 {
5605 free (aout_info.symbol_map);
5606 aout_info.symbol_map = NULL;
5607 }
5608 if (aout_info.output_syms != NULL)
5609 {
5610 free (aout_info.output_syms);
5611 aout_info.output_syms = NULL;
5612 }
5613 if (includes_hash_initialized)
5614 {
5615 bfd_hash_table_free (&aout_info.includes.root);
5616 includes_hash_initialized = FALSE;
5617 }
252b5132 5618
116c20d2
NC		 5619 /* Finish up any dynamic linking we may be doing. */
5620 if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
5621 {
5622 if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
5623 goto error_return;
252b5132
RH		 5624 }
5625
116c20d2
NC		 5626 /* Update the header information. */
5627 abfd->symcount = obj_aout_external_sym_count (abfd);
5628 exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
5629 obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
5630 obj_textsec (abfd)->reloc_count =
5631 exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
5632 obj_datasec (abfd)->reloc_count =
5633 exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
252b5132 5634
116c20d2 5635 /* Write out the string table, unless there are no symbols. */
f6e688f7
AM		 5636 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0)
5637 goto error_return;
116c20d2
NC		 5638 if (abfd->symcount > 0)
5639 {
f6e688f7 5640 if (!emit_stringtab (abfd, aout_info.strtab))
116c20d2
NC		 5641 goto error_return;
5642 }
f6e688f7 5643 else
116c20d2 5644 {
f6e688f7 5645 bfd_byte b[BYTES_IN_WORD];
252b5132 5646
f6e688f7
AM		 5647 memset (b, 0, BYTES_IN_WORD);
5648 if (bfd_bwrite (b, (bfd_size_type) BYTES_IN_WORD, abfd) != BYTES_IN_WORD)
116c20d2
NC		 5649 goto error_return;
5650 }
252b5132 5651
b34976b6 5652 return TRUE;
116c20d2
NC		 5653
5654 error_return:
5655 if (aout_info.contents != NULL)
5656 free (aout_info.contents);
5657 if (aout_info.relocs != NULL)
5658 free (aout_info.relocs);
5659 if (aout_info.symbol_map != NULL)
5660 free (aout_info.symbol_map);
5661 if (aout_info.output_syms != NULL)
5662 free (aout_info.output_syms);
5663 if (includes_hash_initialized)
5664 bfd_hash_table_free (&aout_info.includes.root);
5665 return FALSE;
252b5132 5666}
GDB Binutils - Deliverables
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