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PR symtab/16264 - support DW_AT_main_subprogram
[deliverable/binutils-gdb.git] / bfd / aoutx.h
CommitLineData
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
NC		 3033 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
3034 if (GET_WORD (abfd, p->e_strx) > obj_aout_external_string_size (abfd))
3035 return FALSE;
116c20d2 3036 name = strings + GET_WORD (abfd, p->e_strx);
e517df3d 3037
116c20d2
NC		 3038 value = GET_WORD (abfd, p->e_value);
3039 flags = BSF_GLOBAL;
3040 string = NULL;
3041 switch (type)
252b5132 3042 {
116c20d2
NC		 3043 default:
3044 abort ();
f7c33884 3045
116c20d2
NC		 3046 case N_UNDF:
3047 case N_ABS:
3048 case N_TEXT:
3049 case N_DATA:
3050 case N_BSS:
3051 case N_FN_SEQ:
3052 case N_COMM:
3053 case N_SETV:
3054 case N_FN:
3055 /* Ignore symbols that are not externally visible. */
3056 continue;
3057 case N_INDR:
3058 /* Ignore local indirect symbol. */
3059 ++p;
3060 ++sym_hash;
3061 continue;
252b5132 3062
116c20d2
NC		 3063 case N_UNDF | N_EXT:
3064 if (value == 0)
f7c33884 3065 {
116c20d2
NC		 3066 section = bfd_und_section_ptr;
3067 flags = 0;
252b5132
RH		 3068 }
3069 else
3070 section = bfd_com_section_ptr;
3071 break;
3072 case N_ABS | N_EXT:
3073 section = bfd_abs_section_ptr;
3074 break;
3075 case N_TEXT | N_EXT:
3076 section = obj_textsec (abfd);
3077 value -= bfd_get_section_vma (abfd, section);
3078 break;
3079 case N_DATA | N_EXT:
3080 case N_SETV | N_EXT:
3081 /* Treat N_SETV symbols as N_DATA symbol; see comment in
3082 translate_from_native_sym_flags. */
3083 section = obj_datasec (abfd);
3084 value -= bfd_get_section_vma (abfd, section);
3085 break;
3086 case N_BSS | N_EXT:
3087 section = obj_bsssec (abfd);
3088 value -= bfd_get_section_vma (abfd, section);
3089 break;
3090 case N_INDR | N_EXT:
3091 /* An indirect symbol. The next symbol is the symbol
3092 which this one really is. */
3093 BFD_ASSERT (p + 1 < pend);
3094 ++p;
e517df3d
NC		 3095 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
3096 if (GET_WORD (abfd, p->e_strx) > obj_aout_external_string_size (abfd))
3097 return FALSE;
252b5132
RH		 3098 string = strings + GET_WORD (abfd, p->e_strx);
3099 section = bfd_ind_section_ptr;
3100 flags |= BSF_INDIRECT;
3101 break;
3102 case N_COMM | N_EXT:
3103 section = bfd_com_section_ptr;
3104 break;
3105 case N_SETA: case N_SETA | N_EXT:
3106 section = bfd_abs_section_ptr;
3107 flags |= BSF_CONSTRUCTOR;
3108 break;
3109 case N_SETT: case N_SETT | N_EXT:
3110 section = obj_textsec (abfd);
3111 flags |= BSF_CONSTRUCTOR;
3112 value -= bfd_get_section_vma (abfd, section);
3113 break;
3114 case N_SETD: case N_SETD | N_EXT:
3115 section = obj_datasec (abfd);
3116 flags |= BSF_CONSTRUCTOR;
3117 value -= bfd_get_section_vma (abfd, section);
3118 break;
3119 case N_SETB: case N_SETB | N_EXT:
3120 section = obj_bsssec (abfd);
3121 flags |= BSF_CONSTRUCTOR;
3122 value -= bfd_get_section_vma (abfd, section);
3123 break;
3124 case N_WARNING:
3125 /* A warning symbol. The next symbol is the one to warn
9f400ee9
HPN		 3126 about. If there is no next symbol, just look away. */
3127 if (p + 1 >= pend)
3128 return TRUE;
252b5132
RH		 3129 ++p;
3130 string = name;
e517df3d
NC		 3131 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
3132 if (GET_WORD (abfd, p->e_strx) > obj_aout_external_string_size (abfd))
3133 return FALSE;
252b5132
RH		 3134 name = strings + GET_WORD (abfd, p->e_strx);
3135 section = bfd_und_section_ptr;
3136 flags |= BSF_WARNING;
3137 break;
3138 case N_WEAKU:
3139 section = bfd_und_section_ptr;
3140 flags = BSF_WEAK;
3141 break;
3142 case N_WEAKA:
3143 section = bfd_abs_section_ptr;
3144 flags = BSF_WEAK;
3145 break;
3146 case N_WEAKT:
3147 section = obj_textsec (abfd);
3148 value -= bfd_get_section_vma (abfd, section);
3149 flags = BSF_WEAK;
3150 break;
3151 case N_WEAKD:
3152 section = obj_datasec (abfd);
3153 value -= bfd_get_section_vma (abfd, section);
3154 flags = BSF_WEAK;
3155 break;
3156 case N_WEAKB:
3157 section = obj_bsssec (abfd);
3158 value -= bfd_get_section_vma (abfd, section);
3159 flags = BSF_WEAK;
3160 break;
3161 }
3162
3163 if (! ((*add_one_symbol)
b34976b6 3164 (info, abfd, name, flags, section, value, string, copy, FALSE,
252b5132 3165 (struct bfd_link_hash_entry **) sym_hash)))
b34976b6 3166 return FALSE;
252b5132
RH		 3167
3168 /* Restrict the maximum alignment of a common symbol based on
3169 the architecture, since a.out has no way to represent
3170 alignment requirements of a section in a .o file. FIXME:
3171 This isn't quite right: it should use the architecture of the
3172 output file, not the input files. */
3173 if ((*sym_hash)->root.type == bfd_link_hash_common
3174 && ((*sym_hash)->root.u.c.p->alignment_power >
3175 bfd_get_arch_info (abfd)->section_align_power))
3176 (*sym_hash)->root.u.c.p->alignment_power =
3177 bfd_get_arch_info (abfd)->section_align_power;
3178
3179 /* If this is a set symbol, and we are not building sets, then
3180 it is possible for the hash entry to not have been set. In
3181 such a case, treat the symbol as not globally defined. */
3182 if ((*sym_hash)->root.type == bfd_link_hash_new)
3183 {
3184 BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0);
3185 *sym_hash = NULL;
3186 }
3187
3188 if (type == (N_INDR | N_EXT) || type == N_WARNING)
3189 ++sym_hash;
3190 }
3191
b34976b6 3192 return TRUE;
252b5132 3193}
252b5132 3194
116c20d2
NC		 3195/* Free up the internal symbols read from an a.out file. */
3196
3197static bfd_boolean
3198aout_link_free_symbols (bfd *abfd)
252b5132 3199{
116c20d2
NC		 3200 if (obj_aout_external_syms (abfd) != NULL)
3201 {
3202#ifdef USE_MMAP
3203 bfd_free_window (&obj_aout_sym_window (abfd));
3204#else
3205 free ((void *) obj_aout_external_syms (abfd));
3206#endif
3207 obj_aout_external_syms (abfd) = NULL;
3208 }
3209 if (obj_aout_external_strings (abfd) != NULL)
3210 {
3211#ifdef USE_MMAP
3212 bfd_free_window (&obj_aout_string_window (abfd));
3213#else
3214 free ((void *) obj_aout_external_strings (abfd));
3215#endif
3216 obj_aout_external_strings (abfd) = NULL;
3217 }
3218 return TRUE;
3219}
252b5132 3220
116c20d2 3221/* Add symbols from an a.out object file. */
252b5132 3222
116c20d2
NC		 3223static bfd_boolean
3224aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 3225{
116c20d2
NC		 3226 if (! aout_get_external_symbols (abfd))
3227 return FALSE;
3228 if (! aout_link_add_symbols (abfd, info))
3229 return FALSE;
3230 if (! info->keep_memory)
3231 {
3232 if (! aout_link_free_symbols (abfd))
3233 return FALSE;
3234 }
3235 return TRUE;
3236}
252b5132 3237
116c20d2
NC		 3238/* Look through the internal symbols to see if this object file should
3239 be included in the link. We should include this object file if it
3240 defines any symbols which are currently undefined. If this object
3241 file defines a common symbol, then we may adjust the size of the
3242 known symbol but we do not include the object file in the link
3243 (unless there is some other reason to include it). */
252b5132 3244
116c20d2
NC		 3245static bfd_boolean
3246aout_link_check_ar_symbols (bfd *abfd,
3247 struct bfd_link_info *info,
5d3236ee
DK		 3248 bfd_boolean *pneeded,
3249 bfd **subsbfd)
252b5132 3250{
116c20d2
NC		 3251 struct external_nlist *p;
3252 struct external_nlist *pend;
3253 char *strings;
252b5132 3254
116c20d2 3255 *pneeded = FALSE;
252b5132 3256
116c20d2
NC		 3257 /* Look through all the symbols. */
3258 p = obj_aout_external_syms (abfd);
3259 pend = p + obj_aout_external_sym_count (abfd);
3260 strings = obj_aout_external_strings (abfd);
3261 for (; p < pend; p++)
3262 {
3263 int type = H_GET_8 (abfd, p->e_type);
3264 const char *name;
3265 struct bfd_link_hash_entry *h;
252b5132 3266
116c20d2
NC		 3267 /* Ignore symbols that are not externally visible. This is an
3268 optimization only, as we check the type more thoroughly
3269 below. */
3270 if (((type & N_EXT) == 0
3271 || (type & N_STAB) != 0
3272 || type == N_FN)
3273 && type != N_WEAKA
3274 && type != N_WEAKT
3275 && type != N_WEAKD
3276 && type != N_WEAKB)
3277 {
3278 if (type == N_WARNING
3279 || type == N_INDR)
3280 ++p;
3281 continue;
3282 }
3283
3284 name = strings + GET_WORD (abfd, p->e_strx);
3285 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
3286
3287 /* We are only interested in symbols that are currently
3288 undefined or common. */
3289 if (h == NULL
3290 || (h->type != bfd_link_hash_undefined
3291 && h->type != bfd_link_hash_common))
3292 {
3293 if (type == (N_INDR | N_EXT))
3294 ++p;
3295 continue;
3296 }
3297
3298 if (type == (N_TEXT | N_EXT)
3299 || type == (N_DATA | N_EXT)
3300 || type == (N_BSS | N_EXT)
3301 || type == (N_ABS | N_EXT)
3302 || type == (N_INDR | N_EXT))
3303 {
3304 /* This object file defines this symbol. We must link it
3305 in. This is true regardless of whether the current
3306 definition of the symbol is undefined or common.
3307
3308 If the current definition is common, we have a case in
3309 which we have already seen an object file including:
3310 int a;
3311 and this object file from the archive includes:
3312 int a = 5;
3313 In such a case, whether to include this object is target
3314 dependant for backward compatibility.
3315
3316 FIXME: The SunOS 4.1.3 linker will pull in the archive
3317 element if the symbol is defined in the .data section,
3318 but not if it is defined in the .text section. That
3319 seems a bit crazy to me, and it has not been implemented
3320 yet. However, it might be correct. */
3321 if (h->type == bfd_link_hash_common)
3322 {
3323 int skip = 0;
3324
f88dc410 3325 switch (info->common_skip_ar_symbols)
116c20d2
NC		 3326 {
3327 case bfd_link_common_skip_text:
3328 skip = (type == (N_TEXT | N_EXT));
3329 break;
3330 case bfd_link_common_skip_data:
3331 skip = (type == (N_DATA | N_EXT));
3332 break;
3333 default:
3334 case bfd_link_common_skip_all:
3335 skip = 1;
3336 break;
3337 }
3338
3339 if (skip)
3340 continue;
3341 }
3342
0e144ba7
AM		 3343 if (!(*info->callbacks
3344 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3345 return FALSE;
3346 *pneeded = TRUE;
3347 return TRUE;
3348 }
3349
3350 if (type == (N_UNDF | N_EXT))
3351 {
3352 bfd_vma value;
3353
3354 value = GET_WORD (abfd, p->e_value);
3355 if (value != 0)
3356 {
3357 /* This symbol is common in the object from the archive
3358 file. */
3359 if (h->type == bfd_link_hash_undefined)
3360 {
3361 bfd *symbfd;
3362 unsigned int power;
3363
3364 symbfd = h->u.undef.abfd;
3365 if (symbfd == NULL)
3366 {
3367 /* This symbol was created as undefined from
3368 outside BFD. We assume that we should link
3369 in the object file. This is done for the -u
3370 option in the linker. */
0e144ba7
AM		 3371 if (!(*info->callbacks
3372 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3373 return FALSE;
3374 *pneeded = TRUE;
3375 return TRUE;
3376 }
3377 /* Turn the current link symbol into a common
3378 symbol. It is already on the undefs list. */
3379 h->type = bfd_link_hash_common;
a50b1753 3380 h->u.c.p = (struct bfd_link_hash_common_entry *)
0e144ba7
AM		 3381 bfd_hash_allocate (&info->hash->table,
3382 sizeof (struct bfd_link_hash_common_entry));
116c20d2
NC		 3383 if (h->u.c.p == NULL)
3384 return FALSE;
3385
3386 h->u.c.size = value;
3387
3388 /* FIXME: This isn't quite right. The maximum
3389 alignment of a common symbol should be set by the
3390 architecture of the output file, not of the input
3391 file. */
3392 power = bfd_log2 (value);
3393 if (power > bfd_get_arch_info (abfd)->section_align_power)
3394 power = bfd_get_arch_info (abfd)->section_align_power;
3395 h->u.c.p->alignment_power = power;
3396
3397 h->u.c.p->section = bfd_make_section_old_way (symbfd,
3398 "COMMON");
3399 }
3400 else
3401 {
3402 /* Adjust the size of the common symbol if
3403 necessary. */
3404 if (value > h->u.c.size)
3405 h->u.c.size = value;
3406 }
3407 }
3408 }
3409
3410 if (type == N_WEAKA
3411 || type == N_WEAKT
3412 || type == N_WEAKD
3413 || type == N_WEAKB)
3414 {
3415 /* This symbol is weak but defined. We must pull it in if
3416 the current link symbol is undefined, but we don't want
3417 it if the current link symbol is common. */
3418 if (h->type == bfd_link_hash_undefined)
3419 {
0e144ba7
AM		 3420 if (!(*info->callbacks
3421 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3422 return FALSE;
3423 *pneeded = TRUE;
3424 return TRUE;
3425 }
3426 }
3427 }
3428
3429 /* We do not need this object file. */
3430 return TRUE;
3431}
3432/* Check a single archive element to see if we need to include it in
3433 the link. *PNEEDED is set according to whether this element is
3434 needed in the link or not. This is called from
3435 _bfd_generic_link_add_archive_symbols. */
3436
3437static bfd_boolean
3438aout_link_check_archive_element (bfd *abfd,
3439 struct bfd_link_info *info,
13e570f8
AM		 3440 struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
3441 const char *name ATTRIBUTE_UNUSED,
116c20d2
NC		 3442 bfd_boolean *pneeded)
3443{
0e144ba7
AM		 3444 bfd *oldbfd;
3445 bfd_boolean needed;
5d3236ee 3446
0e144ba7 3447 if (!aout_get_external_symbols (abfd))
116c20d2
NC		 3448 return FALSE;
3449
0e144ba7
AM		 3450 oldbfd = abfd;
3451 if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd))
116c20d2
NC		 3452 return FALSE;
3453
0e144ba7
AM		 3454 needed = *pneeded;
3455 if (needed)
116c20d2 3456 {
5d3236ee
DK		 3457 /* Potentially, the add_archive_element hook may have set a
3458 substitute BFD for us. */
0e144ba7
AM		 3459 if (abfd != oldbfd)
3460 {
3461 if (!info->keep_memory
3462 && !aout_link_free_symbols (oldbfd))
3463 return FALSE;
3464 if (!aout_get_external_symbols (abfd))
3465 return FALSE;
3466 }
3467 if (!aout_link_add_symbols (abfd, info))
116c20d2
NC		 3468 return FALSE;
3469 }
3470
0e144ba7 3471 if (!info->keep_memory || !needed)
116c20d2 3472 {
0e144ba7 3473 if (!aout_link_free_symbols (abfd))
116c20d2
NC		 3474 return FALSE;
3475 }
3476
3477 return TRUE;
3478}
3479
3480/* Given an a.out BFD, add symbols to the global hash table as
3481 appropriate. */
3482
3483bfd_boolean
3484NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
3485{
3486 switch (bfd_get_format (abfd))
3487 {
3488 case bfd_object:
3489 return aout_link_add_object_symbols (abfd, info);
3490 case bfd_archive:
3491 return _bfd_generic_link_add_archive_symbols
3492 (abfd, info, aout_link_check_archive_element);
3493 default:
3494 bfd_set_error (bfd_error_wrong_format);
3495 return FALSE;
3496 }
3497}
3498\f
3499/* A hash table used for header files with N_BINCL entries. */
3500
3501struct aout_link_includes_table
3502{
3503 struct bfd_hash_table root;
3504};
3505
3506/* A linked list of totals that we have found for a particular header
3507 file. */
3508
3509struct aout_link_includes_totals
3510{
3511 struct aout_link_includes_totals *next;
3512 bfd_vma total;
3513};
3514
3515/* An entry in the header file hash table. */
3516
3517struct aout_link_includes_entry
3518{
3519 struct bfd_hash_entry root;
3520 /* List of totals we have found for this file. */
3521 struct aout_link_includes_totals *totals;
3522};
3523
3524/* Look up an entry in an the header file hash table. */
3525
3526#define aout_link_includes_lookup(table, string, create, copy) \
3527 ((struct aout_link_includes_entry *) \
3528 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
3529
3530/* During the final link step we need to pass around a bunch of
3531 information, so we do it in an instance of this structure. */
3532
3533struct aout_final_link_info
3534{
3535 /* General link information. */
3536 struct bfd_link_info *info;
3537 /* Output bfd. */
252b5132
RH		 3538 bfd *output_bfd;
3539 /* Reloc file positions. */
3540 file_ptr treloff, dreloff;
3541 /* File position of symbols. */
3542 file_ptr symoff;
3543 /* String table. */
3544 struct bfd_strtab_hash *strtab;
3545 /* Header file hash table. */
3546 struct aout_link_includes_table includes;
3547 /* A buffer large enough to hold the contents of any section. */
3548 bfd_byte *contents;
3549 /* A buffer large enough to hold the relocs of any section. */
116c20d2 3550 void * relocs;
252b5132
RH		 3551 /* A buffer large enough to hold the symbol map of any input BFD. */
3552 int *symbol_map;
3553 /* A buffer large enough to hold output symbols of any input BFD. */
3554 struct external_nlist *output_syms;
3555};
3556
252b5132
RH		 3557/* The function to create a new entry in the header file hash table. */
3558
3559static struct bfd_hash_entry *
116c20d2
NC		 3560aout_link_includes_newfunc (struct bfd_hash_entry *entry,
3561 struct bfd_hash_table *table,
3562 const char *string)
252b5132
RH		 3563{
3564 struct aout_link_includes_entry *ret =
3565 (struct aout_link_includes_entry *) entry;
3566
3567 /* Allocate the structure if it has not already been allocated by a
3568 subclass. */
116c20d2 3569 if (ret == NULL)
a50b1753
NC		 3570 ret = (struct aout_link_includes_entry *)
3571 bfd_hash_allocate (table, sizeof (* ret));
116c20d2
NC		 3572 if (ret == NULL)
3573 return NULL;
252b5132
RH		 3574
3575 /* Call the allocation method of the superclass. */
3576 ret = ((struct aout_link_includes_entry *)
3577 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
3578 if (ret)
3579 {
3580 /* Set local fields. */
3581 ret->totals = NULL;
3582 }
3583
3584 return (struct bfd_hash_entry *) ret;
3585}
3586
116c20d2
NC		 3587/* Write out a symbol that was not associated with an a.out input
3588 object. */
252b5132 3589
116c20d2 3590static bfd_boolean
7686d77d 3591aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data)
252b5132 3592{
7686d77d 3593 struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh;
57402f1e 3594 struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data;
116c20d2
NC		 3595 bfd *output_bfd;
3596 int type;
3597 bfd_vma val;
3598 struct external_nlist outsym;
3599 bfd_size_type indx;
3600 bfd_size_type amt;
252b5132 3601
116c20d2
NC		 3602 if (h->root.type == bfd_link_hash_warning)
3603 {
3604 h = (struct aout_link_hash_entry *) h->root.u.i.link;
3605 if (h->root.type == bfd_link_hash_new)
3606 return TRUE;
3607 }
252b5132 3608
57402f1e 3609 output_bfd = flaginfo->output_bfd;
252b5132 3610
116c20d2 3611 if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
252b5132 3612 {
116c20d2 3613 if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
57402f1e 3614 (output_bfd, flaginfo->info, h)))
252b5132 3615 {
116c20d2
NC		 3616 /* FIXME: No way to handle errors. */
3617 abort ();
252b5132 3618 }
116c20d2 3619 }
252b5132 3620
116c20d2
NC		 3621 if (h->written)
3622 return TRUE;
252b5132 3623
116c20d2 3624 h->written = TRUE;
252b5132 3625
116c20d2
NC		 3626 /* An indx of -2 means the symbol must be written. */
3627 if (h->indx != -2
57402f1e
NC		 3628 && (flaginfo->info->strip == strip_all
3629 || (flaginfo->info->strip == strip_some
3630 && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string,
116c20d2
NC		 3631 FALSE, FALSE) == NULL)))
3632 return TRUE;
252b5132 3633
116c20d2 3634 switch (h->root.type)
252b5132 3635 {
116c20d2
NC		 3636 default:
3637 case bfd_link_hash_warning:
3638 abort ();
3639 /* Avoid variable not initialized warnings. */
3640 return TRUE;
3641 case bfd_link_hash_new:
3642 /* This can happen for set symbols when sets are not being
3643 built. */
3644 return TRUE;
3645 case bfd_link_hash_undefined:
3646 type = N_UNDF | N_EXT;
3647 val = 0;
3648 break;
3649 case bfd_link_hash_defined:
3650 case bfd_link_hash_defweak:
3651 {
3652 asection *sec;
252b5132 3653
116c20d2
NC		 3654 sec = h->root.u.def.section->output_section;
3655 BFD_ASSERT (bfd_is_abs_section (sec)
3656 || sec->owner == output_bfd);
3657 if (sec == obj_textsec (output_bfd))
3658 type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
3659 else if (sec == obj_datasec (output_bfd))
3660 type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
3661 else if (sec == obj_bsssec (output_bfd))
3662 type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
3663 else
3664 type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
3665 type |= N_EXT;
3666 val = (h->root.u.def.value
3667 + sec->vma
3668 + h->root.u.def.section->output_offset);
3669 }
3670 break;
3671 case bfd_link_hash_common:
3672 type = N_UNDF | N_EXT;
3673 val = h->root.u.c.size;
3674 break;
3675 case bfd_link_hash_undefweak:
3676 type = N_WEAKU;
3677 val = 0;
c38eb2a6 3678 break;
116c20d2
NC		 3679 case bfd_link_hash_indirect:
3680 /* We ignore these symbols, since the indirected symbol is
3681 already in the hash table. */
3682 return TRUE;
3683 }
252b5132 3684
116c20d2
NC		 3685 H_PUT_8 (output_bfd, type, outsym.e_type);
3686 H_PUT_8 (output_bfd, 0, outsym.e_other);
3687 H_PUT_16 (output_bfd, 0, outsym.e_desc);
57402f1e 3688 indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string,
116c20d2
NC		 3689 FALSE);
3690 if (indx == - (bfd_size_type) 1)
3691 /* FIXME: No way to handle errors. */
3692 abort ();
252b5132 3693
116c20d2
NC		 3694 PUT_WORD (output_bfd, indx, outsym.e_strx);
3695 PUT_WORD (output_bfd, val, outsym.e_value);
252b5132 3696
116c20d2 3697 amt = EXTERNAL_NLIST_SIZE;
57402f1e 3698 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0
116c20d2
NC		 3699 || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt)
3700 /* FIXME: No way to handle errors. */
3701 abort ();
252b5132 3702
57402f1e 3703 flaginfo->symoff += EXTERNAL_NLIST_SIZE;
116c20d2
NC		 3704 h->indx = obj_aout_external_sym_count (output_bfd);
3705 ++obj_aout_external_sym_count (output_bfd);
252b5132 3706
116c20d2
NC		 3707 return TRUE;
3708}
252b5132 3709
116c20d2 3710/* Handle a link order which is supposed to generate a reloc. */
252b5132 3711
116c20d2 3712static bfd_boolean
57402f1e 3713aout_link_reloc_link_order (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3714 asection *o,
3715 struct bfd_link_order *p)
3716{
3717 struct bfd_link_order_reloc *pr;
3718 int r_index;
3719 int r_extern;
3720 reloc_howto_type *howto;
3721 file_ptr *reloff_ptr = NULL;
3722 struct reloc_std_external srel;
3723 struct reloc_ext_external erel;
3724 void * rel_ptr;
3725 bfd_size_type amt;
252b5132 3726
116c20d2 3727 pr = p->u.reloc.p;
252b5132 3728
116c20d2
NC		 3729 if (p->type == bfd_section_reloc_link_order)
3730 {
3731 r_extern = 0;
3732 if (bfd_is_abs_section (pr->u.section))
3733 r_index = N_ABS | N_EXT;
3734 else
3735 {
57402f1e 3736 BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd);
116c20d2
NC		 3737 r_index = pr->u.section->target_index;
3738 }
3739 }
3740 else
3741 {
3742 struct aout_link_hash_entry *h;
252b5132 3743
116c20d2
NC		 3744 BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
3745 r_extern = 1;
3746 h = ((struct aout_link_hash_entry *)
57402f1e 3747 bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info,
116c20d2
NC		 3748 pr->u.name, FALSE, FALSE, TRUE));
3749 if (h != NULL
3750 && h->indx >= 0)
3751 r_index = h->indx;
3752 else if (h != NULL)
3753 {
3754 /* We decided to strip this symbol, but it turns out that we
3755 can't. Note that we lose the other and desc information
3756 here. I don't think that will ever matter for a global
3757 symbol. */
3758 h->indx = -2;
3759 h->written = FALSE;
57402f1e 3760 if (!aout_link_write_other_symbol (&h->root.root, flaginfo))
116c20d2
NC		 3761 return FALSE;
3762 r_index = h->indx;
3763 }
3764 else
3765 {
1a72702b
AM		 3766 (*flaginfo->info->callbacks->unattached_reloc)
3767 (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0);
116c20d2
NC		 3768 r_index = 0;
3769 }
3770 }
252b5132 3771
57402f1e 3772 howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc);
116c20d2 3773 if (howto == 0)
252b5132 3774 {
116c20d2
NC		 3775 bfd_set_error (bfd_error_bad_value);
3776 return FALSE;
252b5132
RH		 3777 }
3778
57402f1e
NC		 3779 if (o == obj_textsec (flaginfo->output_bfd))
3780 reloff_ptr = &flaginfo->treloff;
3781 else if (o == obj_datasec (flaginfo->output_bfd))
3782 reloff_ptr = &flaginfo->dreloff;
116c20d2
NC		 3783 else
3784 abort ();
3785
57402f1e 3786 if (obj_reloc_entry_size (flaginfo->output_bfd) == RELOC_STD_SIZE)
252b5132 3787 {
116c20d2 3788#ifdef MY_put_reloc
57402f1e 3789 MY_put_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset, howto,
116c20d2
NC		 3790 &srel);
3791#else
3792 {
3793 int r_pcrel;
3794 int r_baserel;
3795 int r_jmptable;
3796 int r_relative;
3797 int r_length;
252b5132 3798
116c20d2
NC		 3799 r_pcrel = (int) howto->pc_relative;
3800 r_baserel = (howto->type & 8) != 0;
3801 r_jmptable = (howto->type & 16) != 0;
3802 r_relative = (howto->type & 32) != 0;
3803 r_length = howto->size;
252b5132 3804
57402f1e
NC		 3805 PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address);
3806 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3807 {
3808 srel.r_index[0] = r_index >> 16;
3809 srel.r_index[1] = r_index >> 8;
3810 srel.r_index[2] = r_index;
3811 srel.r_type[0] =
3812 ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
3813 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
3814 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
3815 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
3816 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
3817 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
3818 }
3819 else
3820 {
3821 srel.r_index[2] = r_index >> 16;
3822 srel.r_index[1] = r_index >> 8;
3823 srel.r_index[0] = r_index;
3824 srel.r_type[0] =
3825 ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
3826 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
3827 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
3828 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
3829 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
3830 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
3831 }
3832 }
3833#endif
3834 rel_ptr = (void *) &srel;
252b5132 3835
116c20d2
NC		 3836 /* We have to write the addend into the object file, since
3837 standard a.out relocs are in place. It would be more
3838 reliable if we had the current contents of the file here,
3839 rather than assuming zeroes, but we can't read the file since
3840 it was opened using bfd_openw. */
3841 if (pr->addend != 0)
252b5132 3842 {
116c20d2
NC		 3843 bfd_size_type size;
3844 bfd_reloc_status_type r;
3845 bfd_byte *buf;
3846 bfd_boolean ok;
3847
3848 size = bfd_get_reloc_size (howto);
a50b1753 3849 buf = (bfd_byte *) bfd_zmalloc (size);
6346d5ca 3850 if (buf == NULL && size != 0)
116c20d2 3851 return FALSE;
57402f1e 3852 r = MY_relocate_contents (howto, flaginfo->output_bfd,
116c20d2
NC		 3853 (bfd_vma) pr->addend, buf);
3854 switch (r)
252b5132 3855 {
116c20d2
NC		 3856 case bfd_reloc_ok:
3857 break;
3858 default:
3859 case bfd_reloc_outofrange:
3860 abort ();
3861 case bfd_reloc_overflow:
1a72702b
AM		 3862 (*flaginfo->info->callbacks->reloc_overflow)
3863 (flaginfo->info, NULL,
3864 (p->type == bfd_section_reloc_link_order
3865 ? bfd_section_name (flaginfo->output_bfd,
3866 pr->u.section)
3867 : pr->u.name),
3868 howto->name, pr->addend, NULL, NULL, (bfd_vma) 0);
116c20d2 3869 break;
252b5132 3870 }
57402f1e 3871 ok = bfd_set_section_contents (flaginfo->output_bfd, o, (void *) buf,
116c20d2
NC		 3872 (file_ptr) p->offset, size);
3873 free (buf);
3874 if (! ok)
3875 return FALSE;
252b5132
RH		 3876 }
3877 }
116c20d2 3878 else
252b5132 3879 {
116c20d2 3880#ifdef MY_put_ext_reloc
57402f1e 3881 MY_put_ext_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset,
116c20d2
NC		 3882 howto, &erel, pr->addend);
3883#else
57402f1e 3884 PUT_WORD (flaginfo->output_bfd, p->offset, erel.r_address);
252b5132 3885
57402f1e 3886 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3887 {
3888 erel.r_index[0] = r_index >> 16;
3889 erel.r_index[1] = r_index >> 8;
3890 erel.r_index[2] = r_index;
3891 erel.r_type[0] =
3892 ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
3893 | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG));
3894 }
3895 else
3896 {
3897 erel.r_index[2] = r_index >> 16;
3898 erel.r_index[1] = r_index >> 8;
3899 erel.r_index[0] = r_index;
3900 erel.r_type[0] =
3901 (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
3902 | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
3903 }
252b5132 3904
57402f1e 3905 PUT_WORD (flaginfo->output_bfd, (bfd_vma) pr->addend, erel.r_addend);
116c20d2 3906#endif /* MY_put_ext_reloc */
252b5132 3907
116c20d2 3908 rel_ptr = (void *) &erel;
252b5132 3909 }
252b5132 3910
57402f1e
NC		 3911 amt = obj_reloc_entry_size (flaginfo->output_bfd);
3912 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
3913 || bfd_bwrite (rel_ptr, amt, flaginfo->output_bfd) != amt)
116c20d2 3914 return FALSE;
252b5132 3915
57402f1e 3916 *reloff_ptr += obj_reloc_entry_size (flaginfo->output_bfd);
252b5132 3917
116c20d2
NC		 3918 /* Assert that the relocs have not run into the symbols, and that n
3919 the text relocs have not run into the data relocs. */
57402f1e
NC		 3920 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
3921 && (reloff_ptr != &flaginfo->treloff
116c20d2 3922 || (*reloff_ptr
57402f1e 3923 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 3924
3925 return TRUE;
252b5132
RH		 3926}
3927
116c20d2 3928/* Get the section corresponding to a reloc index. */
252b5132 3929
116c20d2
NC		 3930static INLINE asection *
3931aout_reloc_index_to_section (bfd *abfd, int indx)
252b5132 3932{
116c20d2 3933 switch (indx & N_TYPE)
252b5132 3934 {
116c20d2
NC		 3935 case N_TEXT: return obj_textsec (abfd);
3936 case N_DATA: return obj_datasec (abfd);
3937 case N_BSS: return obj_bsssec (abfd);
3938 case N_ABS:
3939 case N_UNDF: return bfd_abs_section_ptr;
3940 default: abort ();
252b5132 3941 }
116c20d2 3942 return NULL;
252b5132
RH		 3943}
3944
116c20d2 3945/* Relocate an a.out section using standard a.out relocs. */
252b5132 3946
b34976b6 3947static bfd_boolean
57402f1e 3948aout_link_input_section_std (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3949 bfd *input_bfd,
3950 asection *input_section,
3951 struct reloc_std_external *relocs,
3952 bfd_size_type rel_size,
3953 bfd_byte *contents)
252b5132 3954{
116c20d2
NC		 3955 bfd_boolean (*check_dynamic_reloc)
3956 (struct bfd_link_info *, bfd *, asection *,
3957 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
3958 bfd_vma *);
252b5132 3959 bfd *output_bfd;
116c20d2
NC		 3960 bfd_boolean relocatable;
3961 struct external_nlist *syms;
252b5132 3962 char *strings;
116c20d2 3963 struct aout_link_hash_entry **sym_hashes;
252b5132 3964 int *symbol_map;
116c20d2
NC		 3965 bfd_size_type reloc_count;
3966 struct reloc_std_external *rel;
3967 struct reloc_std_external *rel_end;
252b5132 3968
57402f1e 3969 output_bfd = flaginfo->output_bfd;
116c20d2 3970 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
252b5132 3971
116c20d2
NC		 3972 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE);
3973 BFD_ASSERT (input_bfd->xvec->header_byteorder
3974 == output_bfd->xvec->header_byteorder);
252b5132 3975
0e1862bb 3976 relocatable = bfd_link_relocatable (flaginfo->info);
116c20d2
NC		 3977 syms = obj_aout_external_syms (input_bfd);
3978 strings = obj_aout_external_strings (input_bfd);
3979 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 3980 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 3981
3982 reloc_count = rel_size / RELOC_STD_SIZE;
3983 rel = relocs;
3984 rel_end = rel + reloc_count;
3985 for (; rel < rel_end; rel++)
252b5132 3986 {
116c20d2
NC		 3987 bfd_vma r_addr;
3988 int r_index;
3989 int r_extern;
3990 int r_pcrel;
3991 int r_baserel = 0;
3992 reloc_howto_type *howto;
3993 struct aout_link_hash_entry *h = NULL;
3994 bfd_vma relocation;
3995 bfd_reloc_status_type r;
252b5132 3996
116c20d2 3997 r_addr = GET_SWORD (input_bfd, rel->r_address);
252b5132 3998
116c20d2
NC		 3999#ifdef MY_reloc_howto
4000 howto = MY_reloc_howto (input_bfd, rel, r_index, r_extern, r_pcrel);
4001#else
4002 {
4003 int r_jmptable;
4004 int r_relative;
4005 int r_length;
4006 unsigned int howto_idx;
252b5132 4007
116c20d2
NC		 4008 if (bfd_header_big_endian (input_bfd))
4009 {
4010 r_index = (((unsigned int) rel->r_index[0] << 16)
4011 | ((unsigned int) rel->r_index[1] << 8)
4012 | rel->r_index[2]);
4013 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
4014 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
4015 r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
4016 r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
4017 r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
4018 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
4019 >> RELOC_STD_BITS_LENGTH_SH_BIG);
4020 }
4021 else
4022 {
4023 r_index = (((unsigned int) rel->r_index[2] << 16)
4024 | ((unsigned int) rel->r_index[1] << 8)
4025 | rel->r_index[0]);
4026 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
4027 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
4028 r_baserel = (0 != (rel->r_type[0]
4029 & RELOC_STD_BITS_BASEREL_LITTLE));
4030 r_jmptable= (0 != (rel->r_type[0]
4031 & RELOC_STD_BITS_JMPTABLE_LITTLE));
4032 r_relative= (0 != (rel->r_type[0]
4033 & RELOC_STD_BITS_RELATIVE_LITTLE));
4034 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
4035 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
4036 }
252b5132 4037
116c20d2
NC		 4038 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
4039 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 4040 if (howto_idx < TABLE_SIZE (howto_table_std))
4041 howto = howto_table_std + howto_idx;
4042 else
4043 howto = NULL;
116c20d2
NC		 4044 }
4045#endif
252b5132 4046
ad756e3f
AM		 4047 if (howto == NULL)
4048 {
57402f1e 4049 (*flaginfo->info->callbacks->einfo)
ad756e3f
AM		 4050 (_("%P: %B: unexpected relocation type\n"), input_bfd);
4051 bfd_set_error (bfd_error_bad_value);
4052 return FALSE;
4053 }
4054
116c20d2 4055 if (relocatable)
252b5132 4056 {
116c20d2
NC		 4057 /* We are generating a relocatable output file, and must
4058 modify the reloc accordingly. */
4059 if (r_extern)
252b5132 4060 {
116c20d2
NC		 4061 /* If we know the symbol this relocation is against,
4062 convert it into a relocation against a section. This
4063 is what the native linker does. */
4064 h = sym_hashes[r_index];
4065 if (h != NULL
4066 && (h->root.type == bfd_link_hash_defined
4067 || h->root.type == bfd_link_hash_defweak))
252b5132 4068 {
252b5132
RH		 4069 asection *output_section;
4070
116c20d2
NC		 4071 /* Change the r_extern value. */
4072 if (bfd_header_big_endian (output_bfd))
4073 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_BIG;
4074 else
4075 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE;
252b5132 4076
116c20d2
NC		 4077 /* Compute a new r_index. */
4078 output_section = h->root.u.def.section->output_section;
252b5132 4079 if (output_section == obj_textsec (output_bfd))
116c20d2 4080 r_index = N_TEXT;
252b5132 4081 else if (output_section == obj_datasec (output_bfd))
116c20d2 4082 r_index = N_DATA;
252b5132 4083 else if (output_section == obj_bsssec (output_bfd))
116c20d2 4084 r_index = N_BSS;
252b5132 4085 else
116c20d2 4086 r_index = N_ABS;
252b5132 4087
116c20d2
NC		 4088 /* Add the symbol value and the section VMA to the
4089 addend stored in the contents. */
4090 relocation = (h->root.u.def.value
4091 + output_section->vma
4092 + h->root.u.def.section->output_offset);
252b5132 4093 }
116c20d2 4094 else
252b5132 4095 {
116c20d2
NC		 4096 /* We must change r_index according to the symbol
4097 map. */
4098 r_index = symbol_map[r_index];
252b5132 4099
116c20d2 4100 if (r_index == -1)
252b5132 4101 {
116c20d2 4102 if (h != NULL)
252b5132 4103 {
116c20d2
NC		 4104 /* We decided to strip this symbol, but it
4105 turns out that we can't. Note that we
4106 lose the other and desc information here.
4107 I don't think that will ever matter for a
4108 global symbol. */
4109 if (h->indx < 0)
252b5132 4110 {
116c20d2
NC		 4111 h->indx = -2;
4112 h->written = FALSE;
7686d77d 4113 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4114 flaginfo))
116c20d2 4115 return FALSE;
252b5132 4116 }
116c20d2
NC		 4117 r_index = h->indx;
4118 }
4119 else
4120 {
4121 const char *name;
4122
4123 name = strings + GET_WORD (input_bfd,
4124 syms[r_index].e_strx);
1a72702b
AM		 4125 (*flaginfo->info->callbacks->unattached_reloc)
4126 (flaginfo->info, name,
4127 input_bfd, input_section, r_addr);
116c20d2 4128 r_index = 0;
252b5132
RH		 4129 }
4130 }
116c20d2
NC		 4131
4132 relocation = 0;
252b5132
RH		 4133 }
4134
116c20d2
NC		 4135 /* Write out the new r_index value. */
4136 if (bfd_header_big_endian (output_bfd))
252b5132 4137 {
116c20d2
NC		 4138 rel->r_index[0] = r_index >> 16;
4139 rel->r_index[1] = r_index >> 8;
4140 rel->r_index[2] = r_index;
252b5132
RH		 4141 }
4142 else
4143 {
116c20d2
NC		 4144 rel->r_index[2] = r_index >> 16;
4145 rel->r_index[1] = r_index >> 8;
4146 rel->r_index[0] = r_index;
252b5132
RH		 4147 }
4148 }
252b5132 4149 else
116c20d2
NC		 4150 {
4151 asection *section;
252b5132 4152
116c20d2
NC		 4153 /* This is a relocation against a section. We must
4154 adjust by the amount that the section moved. */
4155 section = aout_reloc_index_to_section (input_bfd, r_index);
4156 relocation = (section->output_section->vma
4157 + section->output_offset
4158 - section->vma);
4159 }
252b5132 4160
116c20d2
NC		 4161 /* Change the address of the relocation. */
4162 PUT_WORD (output_bfd,
4163 r_addr + input_section->output_offset,
4164 rel->r_address);
252b5132 4165
116c20d2
NC		 4166 /* Adjust a PC relative relocation by removing the reference
4167 to the original address in the section and including the
4168 reference to the new address. */
4169 if (r_pcrel)
4170 relocation -= (input_section->output_section->vma
4171 + input_section->output_offset
4172 - input_section->vma);
e92d460e 4173
116c20d2
NC		 4174#ifdef MY_relocatable_reloc
4175 MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
4176#endif
252b5132 4177
116c20d2
NC		 4178 if (relocation == 0)
4179 r = bfd_reloc_ok;
4180 else
4181 r = MY_relocate_contents (howto,
4182 input_bfd, relocation,
4183 contents + r_addr);
252b5132 4184 }
116c20d2
NC		 4185 else
4186 {
4187 bfd_boolean hundef;
252b5132 4188
116c20d2
NC		 4189 /* We are generating an executable, and must do a full
4190 relocation. */
4191 hundef = FALSE;
252b5132 4192
116c20d2
NC		 4193 if (r_extern)
4194 {
4195 h = sym_hashes[r_index];
252b5132 4196
116c20d2
NC		 4197 if (h != NULL
4198 && (h->root.type == bfd_link_hash_defined
4199 || h->root.type == bfd_link_hash_defweak))
4200 {
4201 relocation = (h->root.u.def.value
4202 + h->root.u.def.section->output_section->vma
4203 + h->root.u.def.section->output_offset);
4204 }
4205 else if (h != NULL
4206 && h->root.type == bfd_link_hash_undefweak)
4207 relocation = 0;
4208 else
4209 {
4210 hundef = TRUE;
4211 relocation = 0;
4212 }
4213 }
4214 else
4215 {
4216 asection *section;
252b5132 4217
116c20d2
NC		 4218 section = aout_reloc_index_to_section (input_bfd, r_index);
4219 relocation = (section->output_section->vma
4220 + section->output_offset
4221 - section->vma);
4222 if (r_pcrel)
4223 relocation += input_section->vma;
4224 }
252b5132 4225
116c20d2
NC		 4226 if (check_dynamic_reloc != NULL)
4227 {
4228 bfd_boolean skip;
252b5132 4229
116c20d2 4230 if (! ((*check_dynamic_reloc)
57402f1e 4231 (flaginfo->info, input_bfd, input_section, h,
116c20d2
NC		 4232 (void *) rel, contents, &skip, &relocation)))
4233 return FALSE;
4234 if (skip)
4235 continue;
4236 }
252b5132 4237
116c20d2
NC		 4238 /* Now warn if a global symbol is undefined. We could not
4239 do this earlier, because check_dynamic_reloc might want
4240 to skip this reloc. */
0e1862bb 4241 if (hundef && ! bfd_link_pic (flaginfo->info) && ! r_baserel)
116c20d2
NC		 4242 {
4243 const char *name;
252b5132 4244
116c20d2
NC		 4245 if (h != NULL)
4246 name = h->root.root.string;
4247 else
4248 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4249 (*flaginfo->info->callbacks->undefined_symbol)
4250 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
116c20d2 4251 }
252b5132 4252
116c20d2
NC		 4253 r = MY_final_link_relocate (howto,
4254 input_bfd, input_section,
4255 contents, r_addr, relocation,
4256 (bfd_vma) 0);
252b5132 4257 }
252b5132 4258
116c20d2
NC		 4259 if (r != bfd_reloc_ok)
4260 {
4261 switch (r)
4262 {
4263 default:
4264 case bfd_reloc_outofrange:
4265 abort ();
4266 case bfd_reloc_overflow:
4267 {
4268 const char *name;
252b5132 4269
116c20d2
NC		 4270 if (h != NULL)
4271 name = NULL;
4272 else if (r_extern)
4273 name = strings + GET_WORD (input_bfd,
4274 syms[r_index].e_strx);
4275 else
4276 {
4277 asection *s;
252b5132 4278
116c20d2
NC		 4279 s = aout_reloc_index_to_section (input_bfd, r_index);
4280 name = bfd_section_name (input_bfd, s);
4281 }
1a72702b
AM		 4282 (*flaginfo->info->callbacks->reloc_overflow)
4283 (flaginfo->info, (h ? &h->root : NULL), name, howto->name,
4284 (bfd_vma) 0, input_bfd, input_section, r_addr);
116c20d2
NC		 4285 }
4286 break;
4287 }
4288 }
252b5132
RH		 4289 }
4290
b34976b6 4291 return TRUE;
252b5132
RH		 4292}
4293
116c20d2 4294/* Relocate an a.out section using extended a.out relocs. */
252b5132 4295
b34976b6 4296static bfd_boolean
57402f1e 4297aout_link_input_section_ext (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4298 bfd *input_bfd,
4299 asection *input_section,
4300 struct reloc_ext_external *relocs,
4301 bfd_size_type rel_size,
4302 bfd_byte *contents)
252b5132 4303{
b34976b6 4304 bfd_boolean (*check_dynamic_reloc)
116c20d2
NC		 4305 (struct bfd_link_info *, bfd *, asection *,
4306 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
4307 bfd_vma *);
252b5132 4308 bfd *output_bfd;
1049f94e 4309 bfd_boolean relocatable;
252b5132
RH		 4310 struct external_nlist *syms;
4311 char *strings;
4312 struct aout_link_hash_entry **sym_hashes;
4313 int *symbol_map;
4314 bfd_size_type reloc_count;
116c20d2
NC		 4315 struct reloc_ext_external *rel;
4316 struct reloc_ext_external *rel_end;
252b5132 4317
57402f1e 4318 output_bfd = flaginfo->output_bfd;
252b5132
RH		 4319 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
4320
116c20d2 4321 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_EXT_SIZE);
252b5132
RH		 4322 BFD_ASSERT (input_bfd->xvec->header_byteorder
4323 == output_bfd->xvec->header_byteorder);
4324
0e1862bb 4325 relocatable = bfd_link_relocatable (flaginfo->info);
252b5132
RH		 4326 syms = obj_aout_external_syms (input_bfd);
4327 strings = obj_aout_external_strings (input_bfd);
4328 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4329 symbol_map = flaginfo->symbol_map;
252b5132 4330
116c20d2 4331 reloc_count = rel_size / RELOC_EXT_SIZE;
252b5132
RH		 4332 rel = relocs;
4333 rel_end = rel + reloc_count;
4334 for (; rel < rel_end; rel++)
4335 {
4336 bfd_vma r_addr;
4337 int r_index;
4338 int r_extern;
116c20d2
NC		 4339 unsigned int r_type;
4340 bfd_vma r_addend;
252b5132 4341 struct aout_link_hash_entry *h = NULL;
116c20d2 4342 asection *r_section = NULL;
252b5132 4343 bfd_vma relocation;
252b5132
RH		 4344
4345 r_addr = GET_SWORD (input_bfd, rel->r_address);
4346
116c20d2
NC		 4347 if (bfd_header_big_endian (input_bfd))
4348 {
4349 r_index = (((unsigned int) rel->r_index[0] << 16)
4350 | ((unsigned int) rel->r_index[1] << 8)
4351 | rel->r_index[2]);
4352 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
4353 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
4354 >> RELOC_EXT_BITS_TYPE_SH_BIG);
4355 }
4356 else
4357 {
4358 r_index = (((unsigned int) rel->r_index[2] << 16)
4359 | ((unsigned int) rel->r_index[1] << 8)
4360 | rel->r_index[0]);
4361 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
4362 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
4363 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
4364 }
252b5132 4365
116c20d2 4366 r_addend = GET_SWORD (input_bfd, rel->r_addend);
252b5132 4367
ad756e3f
AM		 4368 if (r_type >= TABLE_SIZE (howto_table_ext))
4369 {
57402f1e 4370 (*flaginfo->info->callbacks->einfo)
ad756e3f
AM		 4371 (_("%P: %B: unexpected relocation type\n"), input_bfd);
4372 bfd_set_error (bfd_error_bad_value);
4373 return FALSE;
4374 }
252b5132 4375
1049f94e 4376 if (relocatable)
252b5132 4377 {
1049f94e 4378 /* We are generating a relocatable output file, and must
252b5132 4379 modify the reloc accordingly. */
116c20d2
NC		 4380 if (r_extern
4381 || r_type == (unsigned int) RELOC_BASE10
4382 || r_type == (unsigned int) RELOC_BASE13
4383 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 4384 {
4385 /* If we know the symbol this relocation is against,
4386 convert it into a relocation against a section. This
4387 is what the native linker does. */
116c20d2
NC		 4388 if (r_type == (unsigned int) RELOC_BASE10
4389 || r_type == (unsigned int) RELOC_BASE13
4390 || r_type == (unsigned int) RELOC_BASE22)
4391 h = NULL;
4392 else
4393 h = sym_hashes[r_index];
4394 if (h != NULL
252b5132
RH		 4395 && (h->root.type == bfd_link_hash_defined
4396 || h->root.type == bfd_link_hash_defweak))
4397 {
4398 asection *output_section;
4399
4400 /* Change the r_extern value. */
4401 if (bfd_header_big_endian (output_bfd))
116c20d2 4402 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_BIG;
252b5132 4403 else
116c20d2 4404 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE;
252b5132
RH		 4405
4406 /* Compute a new r_index. */
4407 output_section = h->root.u.def.section->output_section;
4408 if (output_section == obj_textsec (output_bfd))
4409 r_index = N_TEXT;
4410 else if (output_section == obj_datasec (output_bfd))
4411 r_index = N_DATA;
4412 else if (output_section == obj_bsssec (output_bfd))
4413 r_index = N_BSS;
4414 else
4415 r_index = N_ABS;
4416
4417 /* Add the symbol value and the section VMA to the
116c20d2 4418 addend. */
252b5132
RH		 4419 relocation = (h->root.u.def.value
4420 + output_section->vma
4421 + h->root.u.def.section->output_offset);
116c20d2
NC		 4422
4423 /* Now RELOCATION is the VMA of the final
4424 destination. If this is a PC relative reloc,
4425 then ADDEND is the negative of the source VMA.
4426 We want to set ADDEND to the difference between
4427 the destination VMA and the source VMA, which
4428 means we must adjust RELOCATION by the change in
4429 the source VMA. This is done below. */
252b5132
RH		 4430 }
4431 else
4432 {
4433 /* We must change r_index according to the symbol
4434 map. */
4435 r_index = symbol_map[r_index];
4436
4437 if (r_index == -1)
4438 {
4439 if (h != NULL)
4440 {
4441 /* We decided to strip this symbol, but it
4442 turns out that we can't. Note that we
4443 lose the other and desc information here.
4444 I don't think that will ever matter for a
4445 global symbol. */
4446 if (h->indx < 0)
4447 {
4448 h->indx = -2;
b34976b6 4449 h->written = FALSE;
7686d77d 4450 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4451 flaginfo))
b34976b6 4452 return FALSE;
252b5132
RH		 4453 }
4454 r_index = h->indx;
4455 }
4456 else
4457 {
4458 const char *name;
4459
4460 name = strings + GET_WORD (input_bfd,
4461 syms[r_index].e_strx);
1a72702b
AM		 4462 (*flaginfo->info->callbacks->unattached_reloc)
4463 (flaginfo->info, name,
4464 input_bfd, input_section, r_addr);
252b5132
RH		 4465 r_index = 0;
4466 }
4467 }
4468
4469 relocation = 0;
116c20d2
NC		 4470
4471 /* If this is a PC relative reloc, then the addend
4472 is the negative of the source VMA. We must
4473 adjust it by the change in the source VMA. This
4474 is done below. */
252b5132
RH		 4475 }
4476
4477 /* Write out the new r_index value. */
4478 if (bfd_header_big_endian (output_bfd))
4479 {
4480 rel->r_index[0] = r_index >> 16;
4481 rel->r_index[1] = r_index >> 8;
4482 rel->r_index[2] = r_index;
4483 }
4484 else
4485 {
4486 rel->r_index[2] = r_index >> 16;
4487 rel->r_index[1] = r_index >> 8;
4488 rel->r_index[0] = r_index;
4489 }
4490 }
4491 else
4492 {
252b5132
RH		 4493 /* This is a relocation against a section. We must
4494 adjust by the amount that the section moved. */
116c20d2
NC		 4495 r_section = aout_reloc_index_to_section (input_bfd, r_index);
4496 relocation = (r_section->output_section->vma
4497 + r_section->output_offset
4498 - r_section->vma);
252b5132 4499
116c20d2
NC		 4500 /* If this is a PC relative reloc, then the addend is
4501 the difference in VMA between the destination and the
4502 source. We have just adjusted for the change in VMA
4503 of the destination, so we must also adjust by the
4504 change in VMA of the source. This is done below. */
4505 }
252b5132 4506
116c20d2
NC		 4507 /* As described above, we must always adjust a PC relative
4508 reloc by the change in VMA of the source. However, if
4509 pcrel_offset is set, then the addend does not include the
4510 location within the section, in which case we don't need
4511 to adjust anything. */
4512 if (howto_table_ext[r_type].pc_relative
4513 && ! howto_table_ext[r_type].pcrel_offset)
252b5132
RH		 4514 relocation -= (input_section->output_section->vma
4515 + input_section->output_offset
4516 - input_section->vma);
4517
116c20d2
NC		 4518 /* Change the addend if necessary. */
4519 if (relocation != 0)
4520 PUT_WORD (output_bfd, r_addend + relocation, rel->r_addend);
252b5132 4521
116c20d2
NC		 4522 /* Change the address of the relocation. */
4523 PUT_WORD (output_bfd,
4524 r_addr + input_section->output_offset,
4525 rel->r_address);
252b5132
RH		 4526 }
4527 else
4528 {
b34976b6 4529 bfd_boolean hundef;
116c20d2 4530 bfd_reloc_status_type r;
252b5132
RH		 4531
4532 /* We are generating an executable, and must do a full
4533 relocation. */
b34976b6 4534 hundef = FALSE;
252b5132
RH		 4535
4536 if (r_extern)
4537 {
4538 h = sym_hashes[r_index];
4539
116c20d2 4540 if (h != NULL
252b5132
RH		 4541 && (h->root.type == bfd_link_hash_defined
4542 || h->root.type == bfd_link_hash_defweak))
4543 {
4544 relocation = (h->root.u.def.value
4545 + h->root.u.def.section->output_section->vma
4546 + h->root.u.def.section->output_offset);
4547 }
116c20d2 4548 else if (h != NULL
252b5132
RH		 4549 && h->root.type == bfd_link_hash_undefweak)
4550 relocation = 0;
4551 else
4552 {
b34976b6 4553 hundef = TRUE;
252b5132
RH		 4554 relocation = 0;
4555 }
4556 }
116c20d2
NC		 4557 else if (r_type == (unsigned int) RELOC_BASE10
4558 || r_type == (unsigned int) RELOC_BASE13
4559 || r_type == (unsigned int) RELOC_BASE22)
4560 {
4561 struct external_nlist *sym;
4562 int type;
4563
4564 /* For base relative relocs, r_index is always an index
4565 into the symbol table, even if r_extern is 0. */
4566 sym = syms + r_index;
4567 type = H_GET_8 (input_bfd, sym->e_type);
4568 if ((type & N_TYPE) == N_TEXT
4569 || type == N_WEAKT)
4570 r_section = obj_textsec (input_bfd);
4571 else if ((type & N_TYPE) == N_DATA
4572 || type == N_WEAKD)
4573 r_section = obj_datasec (input_bfd);
4574 else if ((type & N_TYPE) == N_BSS
4575 || type == N_WEAKB)
4576 r_section = obj_bsssec (input_bfd);
4577 else if ((type & N_TYPE) == N_ABS
4578 || type == N_WEAKA)
4579 r_section = bfd_abs_section_ptr;
4580 else
4581 abort ();
4582 relocation = (r_section->output_section->vma
4583 + r_section->output_offset
4584 + (GET_WORD (input_bfd, sym->e_value)
4585 - r_section->vma));
4586 }
252b5132
RH		 4587 else
4588 {
116c20d2 4589 r_section = aout_reloc_index_to_section (input_bfd, r_index);
252b5132 4590
116c20d2
NC		 4591 /* If this is a PC relative reloc, then R_ADDEND is the
4592 difference between the two vmas, or
4593 old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
4594 where
4595 old_dest_sec == section->vma
4596 and
4597 old_src_sec == input_section->vma
4598 and
4599 old_src_off == r_addr
4600
4601 _bfd_final_link_relocate expects RELOCATION +
4602 R_ADDEND to be the VMA of the destination minus
4603 r_addr (the minus r_addr is because this relocation
4604 is not pcrel_offset, which is a bit confusing and
4605 should, perhaps, be changed), or
4606 new_dest_sec
4607 where
4608 new_dest_sec == output_section->vma + output_offset
4609 We arrange for this to happen by setting RELOCATION to
4610 new_dest_sec + old_src_sec - old_dest_sec
4611
4612 If this is not a PC relative reloc, then R_ADDEND is
4613 simply the VMA of the destination, so we set
4614 RELOCATION to the change in the destination VMA, or
4615 new_dest_sec - old_dest_sec
4616 */
4617 relocation = (r_section->output_section->vma
4618 + r_section->output_offset
4619 - r_section->vma);
4620 if (howto_table_ext[r_type].pc_relative)
252b5132
RH		 4621 relocation += input_section->vma;
4622 }
4623
4624 if (check_dynamic_reloc != NULL)
4625 {
b34976b6 4626 bfd_boolean skip;
252b5132
RH		 4627
4628 if (! ((*check_dynamic_reloc)
57402f1e 4629 (flaginfo->info, input_bfd, input_section, h,
116c20d2 4630 (void *) rel, contents, &skip, &relocation)))
b34976b6 4631 return FALSE;
252b5132
RH		 4632 if (skip)
4633 continue;
4634 }
4635
4636 /* Now warn if a global symbol is undefined. We could not
4637 do this earlier, because check_dynamic_reloc might want
4638 to skip this reloc. */
116c20d2 4639 if (hundef
0e1862bb 4640 && ! bfd_link_pic (flaginfo->info)
116c20d2
NC		 4641 && r_type != (unsigned int) RELOC_BASE10
4642 && r_type != (unsigned int) RELOC_BASE13
4643 && r_type != (unsigned int) RELOC_BASE22)
252b5132
RH		 4644 {
4645 const char *name;
4646
4647 if (h != NULL)
4648 name = h->root.root.string;
4649 else
4650 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4651 (*flaginfo->info->callbacks->undefined_symbol)
4652 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
252b5132
RH		 4653 }
4654
116c20d2
NC		 4655 if (r_type != (unsigned int) RELOC_SPARC_REV32)
4656 r = MY_final_link_relocate (howto_table_ext + r_type,
4657 input_bfd, input_section,
4658 contents, r_addr, relocation,
4659 r_addend);
4660 else
252b5132 4661 {
116c20d2 4662 bfd_vma x;
252b5132 4663
116c20d2
NC		 4664 x = bfd_get_32 (input_bfd, contents + r_addr);
4665 x = x + relocation + r_addend;
4666 bfd_putl32 (/*input_bfd,*/ x, contents + r_addr);
4667 r = bfd_reloc_ok;
4668 }
4669
4670 if (r != bfd_reloc_ok)
4671 {
4672 switch (r)
4673 {
4674 default:
4675 case bfd_reloc_outofrange:
4676 abort ();
4677 case bfd_reloc_overflow:
252b5132 4678 {
116c20d2 4679 const char *name;
252b5132 4680
116c20d2
NC		 4681 if (h != NULL)
4682 name = NULL;
4683 else if (r_extern
4684 || r_type == (unsigned int) RELOC_BASE10
4685 || r_type == (unsigned int) RELOC_BASE13
4686 || r_type == (unsigned int) RELOC_BASE22)
4687 name = strings + GET_WORD (input_bfd,
4688 syms[r_index].e_strx);
4689 else
4690 {
4691 asection *s;
4692
4693 s = aout_reloc_index_to_section (input_bfd, r_index);
4694 name = bfd_section_name (input_bfd, s);
4695 }
1a72702b
AM		 4696 (*flaginfo->info->callbacks->reloc_overflow)
4697 (flaginfo->info, (h ? &h->root : NULL), name,
4698 howto_table_ext[r_type].name,
4699 r_addend, input_bfd, input_section, r_addr);
252b5132 4700 }
116c20d2
NC		 4701 break;
4702 }
252b5132
RH		 4703 }
4704 }
4705 }
4706
b34976b6 4707 return TRUE;
252b5132
RH		 4708}
4709
116c20d2
NC		 4710/* Link an a.out section into the output file. */
4711
4712static bfd_boolean
57402f1e 4713aout_link_input_section (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4714 bfd *input_bfd,
4715 asection *input_section,
4716 file_ptr *reloff_ptr,
4717 bfd_size_type rel_size)
4718{
4719 bfd_size_type input_size;
4720 void * relocs;
4721
4722 /* Get the section contents. */
4723 input_size = input_section->size;
4724 if (! bfd_get_section_contents (input_bfd, input_section,
57402f1e 4725 (void *) flaginfo->contents,
116c20d2
NC		 4726 (file_ptr) 0, input_size))
4727 return FALSE;
4728
4729 /* Read in the relocs if we haven't already done it. */
4730 if (aout_section_data (input_section) != NULL
4731 && aout_section_data (input_section)->relocs != NULL)
4732 relocs = aout_section_data (input_section)->relocs;
4733 else
4734 {
57402f1e 4735 relocs = flaginfo->relocs;
116c20d2
NC		 4736 if (rel_size > 0)
4737 {
4738 if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
4739 || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
4740 return FALSE;
4741 }
4742 }
4743
4744 /* Relocate the section contents. */
4745 if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE)
4746 {
57402f1e 4747 if (! aout_link_input_section_std (flaginfo, input_bfd, input_section,
116c20d2 4748 (struct reloc_std_external *) relocs,
57402f1e 4749 rel_size, flaginfo->contents))
116c20d2
NC		 4750 return FALSE;
4751 }
4752 else
4753 {
57402f1e 4754 if (! aout_link_input_section_ext (flaginfo, input_bfd, input_section,
116c20d2 4755 (struct reloc_ext_external *) relocs,
57402f1e 4756 rel_size, flaginfo->contents))
116c20d2
NC		 4757 return FALSE;
4758 }
4759
4760 /* Write out the section contents. */
57402f1e 4761 if (! bfd_set_section_contents (flaginfo->output_bfd,
116c20d2 4762 input_section->output_section,
57402f1e 4763 (void *) flaginfo->contents,
116c20d2
NC		 4764 (file_ptr) input_section->output_offset,
4765 input_size))
4766 return FALSE;
4767
4768 /* If we are producing relocatable output, the relocs were
4769 modified, and we now write them out. */
0e1862bb 4770 if (bfd_link_relocatable (flaginfo->info) && rel_size > 0)
116c20d2 4771 {
57402f1e 4772 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
116c20d2 4773 return FALSE;
57402f1e 4774 if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size)
116c20d2
NC		 4775 return FALSE;
4776 *reloff_ptr += rel_size;
4777
4778 /* Assert that the relocs have not run into the symbols, and
4779 that if these are the text relocs they have not run into the
4780 data relocs. */
57402f1e
NC		 4781 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
4782 && (reloff_ptr != &flaginfo->treloff
116c20d2 4783 || (*reloff_ptr
57402f1e 4784 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 4785 }
4786
4787 return TRUE;
4788}
4789
4790/* Adjust and write out the symbols for an a.out file. Set the new
4791 symbol indices into a symbol_map. */
252b5132 4792
b34976b6 4793static bfd_boolean
57402f1e 4794aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd)
252b5132 4795{
252b5132 4796 bfd *output_bfd;
116c20d2 4797 bfd_size_type sym_count;
252b5132 4798 char *strings;
116c20d2
NC		 4799 enum bfd_link_strip strip;
4800 enum bfd_link_discard discard;
4801 struct external_nlist *outsym;
4802 bfd_size_type strtab_index;
4803 struct external_nlist *sym;
4804 struct external_nlist *sym_end;
4805 struct aout_link_hash_entry **sym_hash;
252b5132 4806 int *symbol_map;
116c20d2
NC		 4807 bfd_boolean pass;
4808 bfd_boolean skip_next;
252b5132 4809
57402f1e 4810 output_bfd = flaginfo->output_bfd;
116c20d2
NC		 4811 sym_count = obj_aout_external_sym_count (input_bfd);
4812 strings = obj_aout_external_strings (input_bfd);
57402f1e
NC		 4813 strip = flaginfo->info->strip;
4814 discard = flaginfo->info->discard;
4815 outsym = flaginfo->output_syms;
252b5132 4816
116c20d2
NC		 4817 /* First write out a symbol for this object file, unless we are
4818 discarding such symbols. */
4819 if (strip != strip_all
4820 && (strip != strip_some
57402f1e 4821 || bfd_hash_lookup (flaginfo->info->keep_hash, input_bfd->filename,
116c20d2
NC		 4822 FALSE, FALSE) != NULL)
4823 && discard != discard_all)
4824 {
4825 H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
4826 H_PUT_8 (output_bfd, 0, outsym->e_other);
4827 H_PUT_16 (output_bfd, 0, outsym->e_desc);
57402f1e 4828 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 4829 input_bfd->filename, FALSE);
4830 if (strtab_index == (bfd_size_type) -1)
4831 return FALSE;
4832 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
4833 PUT_WORD (output_bfd,
4834 (bfd_get_section_vma (output_bfd,
4835 obj_textsec (input_bfd)->output_section)
4836 + obj_textsec (input_bfd)->output_offset),
4837 outsym->e_value);
4838 ++obj_aout_external_sym_count (output_bfd);
4839 ++outsym;
4840 }
252b5132 4841
116c20d2
NC		 4842 pass = FALSE;
4843 skip_next = FALSE;
4844 sym = obj_aout_external_syms (input_bfd);
4845 sym_end = sym + sym_count;
4846 sym_hash = obj_aout_sym_hashes (input_bfd);
57402f1e 4847 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4848 memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map);
4849 for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
252b5132 4850 {
116c20d2
NC		 4851 const char *name;
4852 int type;
4853 struct aout_link_hash_entry *h;
4854 bfd_boolean skip;
4855 asection *symsec;
4856 bfd_vma val = 0;
4857 bfd_boolean copy;
252b5132 4858
116c20d2
NC		 4859 /* We set *symbol_map to 0 above for all symbols. If it has
4860 already been set to -1 for this symbol, it means that we are
4861 discarding it because it appears in a duplicate header file.
4862 See the N_BINCL code below. */
4863 if (*symbol_map == -1)
4864 continue;
252b5132 4865
116c20d2
NC		 4866 /* Initialize *symbol_map to -1, which means that the symbol was
4867 not copied into the output file. We will change it later if
4868 we do copy the symbol over. */
4869 *symbol_map = -1;
4870
4871 type = H_GET_8 (input_bfd, sym->e_type);
4872 name = strings + GET_WORD (input_bfd, sym->e_strx);
4873
4874 h = NULL;
4875
4876 if (pass)
252b5132 4877 {
116c20d2
NC		 4878 /* Pass this symbol through. It is the target of an
4879 indirect or warning symbol. */
4880 val = GET_WORD (input_bfd, sym->e_value);
4881 pass = FALSE;
252b5132 4882 }
116c20d2 4883 else if (skip_next)
252b5132 4884 {
116c20d2
NC		 4885 /* Skip this symbol, which is the target of an indirect
4886 symbol that we have changed to no longer be an indirect
4887 symbol. */
4888 skip_next = FALSE;
4889 continue;
252b5132 4890 }
116c20d2
NC		 4891 else
4892 {
4893 struct aout_link_hash_entry *hresolve;
252b5132 4894
116c20d2
NC		 4895 /* We have saved the hash table entry for this symbol, if
4896 there is one. Note that we could just look it up again
4897 in the hash table, provided we first check that it is an
4898 external symbol. */
4899 h = *sym_hash;
252b5132 4900
116c20d2
NC		 4901 /* Use the name from the hash table, in case the symbol was
4902 wrapped. */
4903 if (h != NULL
4904 && h->root.type != bfd_link_hash_warning)
4905 name = h->root.root.string;
252b5132 4906
116c20d2
NC		 4907 /* If this is an indirect or warning symbol, then change
4908 hresolve to the base symbol. We also change *sym_hash so
4909 that the relocation routines relocate against the real
4910 symbol. */
4911 hresolve = h;
4912 if (h != (struct aout_link_hash_entry *) NULL
4913 && (h->root.type == bfd_link_hash_indirect
4914 || h->root.type == bfd_link_hash_warning))
252b5132 4915 {
116c20d2
NC		 4916 hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
4917 while (hresolve->root.type == bfd_link_hash_indirect
4918 || hresolve->root.type == bfd_link_hash_warning)
4919 hresolve = ((struct aout_link_hash_entry *)
4920 hresolve->root.u.i.link);
4921 *sym_hash = hresolve;
4922 }
4923
4924 /* If the symbol has already been written out, skip it. */
4925 if (h != NULL
4926 && h->written)
4927 {
4928 if ((type & N_TYPE) == N_INDR
4929 || type == N_WARNING)
4930 skip_next = TRUE;
4931 *symbol_map = h->indx;
4932 continue;
4933 }
4934
4935 /* See if we are stripping this symbol. */
4936 skip = FALSE;
4937 switch (strip)
4938 {
4939 case strip_none:
4940 break;
4941 case strip_debugger:
4942 if ((type & N_STAB) != 0)
4943 skip = TRUE;
4944 break;
4945 case strip_some:
57402f1e 4946 if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE)
116c20d2
NC		 4947 == NULL)
4948 skip = TRUE;
4949 break;
4950 case strip_all:
4951 skip = TRUE;
4952 break;
4953 }
4954 if (skip)
4955 {
4956 if (h != NULL)
4957 h->written = TRUE;
4958 continue;
4959 }
4960
4961 /* Get the value of the symbol. */
4962 if ((type & N_TYPE) == N_TEXT
4963 || type == N_WEAKT)
4964 symsec = obj_textsec (input_bfd);
4965 else if ((type & N_TYPE) == N_DATA
4966 || type == N_WEAKD)
4967 symsec = obj_datasec (input_bfd);
4968 else if ((type & N_TYPE) == N_BSS
4969 || type == N_WEAKB)
4970 symsec = obj_bsssec (input_bfd);
4971 else if ((type & N_TYPE) == N_ABS
4972 || type == N_WEAKA)
4973 symsec = bfd_abs_section_ptr;
4974 else if (((type & N_TYPE) == N_INDR
4975 && (hresolve == NULL
4976 || (hresolve->root.type != bfd_link_hash_defined
4977 && hresolve->root.type != bfd_link_hash_defweak
4978 && hresolve->root.type != bfd_link_hash_common)))
4979 || type == N_WARNING)
4980 {
4981 /* Pass the next symbol through unchanged. The
4982 condition above for indirect symbols is so that if
4983 the indirect symbol was defined, we output it with
4984 the correct definition so the debugger will
4985 understand it. */
4986 pass = TRUE;
4987 val = GET_WORD (input_bfd, sym->e_value);
4988 symsec = NULL;
4989 }
4990 else if ((type & N_STAB) != 0)
4991 {
4992 val = GET_WORD (input_bfd, sym->e_value);
4993 symsec = NULL;
4994 }
4995 else
4996 {
4997 /* If we get here with an indirect symbol, it means that
4998 we are outputting it with a real definition. In such
4999 a case we do not want to output the next symbol,
5000 which is the target of the indirection. */
5001 if ((type & N_TYPE) == N_INDR)
5002 skip_next = TRUE;
5003
5004 symsec = NULL;
5005
5006 /* We need to get the value from the hash table. We use
5007 hresolve so that if we have defined an indirect
5008 symbol we output the final definition. */
5009 if (h == NULL)
5010 {
5011 switch (type & N_TYPE)
5012 {
5013 case N_SETT:
5014 symsec = obj_textsec (input_bfd);
5015 break;
5016 case N_SETD:
5017 symsec = obj_datasec (input_bfd);
5018 break;
5019 case N_SETB:
5020 symsec = obj_bsssec (input_bfd);
5021 break;
5022 case N_SETA:
5023 symsec = bfd_abs_section_ptr;
5024 break;
5025 default:
5026 val = 0;
5027 break;
5028 }
5029 }
5030 else if (hresolve->root.type == bfd_link_hash_defined
5031 || hresolve->root.type == bfd_link_hash_defweak)
252b5132 5032 {
116c20d2 5033 asection *input_section;
252b5132
RH		 5034 asection *output_section;
5035
116c20d2
NC		 5036 /* This case usually means a common symbol which was
5037 turned into a defined symbol. */
5038 input_section = hresolve->root.u.def.section;
5039 output_section = input_section->output_section;
5040 BFD_ASSERT (bfd_is_abs_section (output_section)
5041 || output_section->owner == output_bfd);
5042 val = (hresolve->root.u.def.value
5043 + bfd_get_section_vma (output_bfd, output_section)
5044 + input_section->output_offset);
5045
5046 /* Get the correct type based on the section. If
5047 this is a constructed set, force it to be
5048 globally visible. */
5049 if (type == N_SETT
5050 || type == N_SETD
5051 || type == N_SETB
5052 || type == N_SETA)
5053 type |= N_EXT;
5054
5055 type &=~ N_TYPE;
252b5132 5056
252b5132 5057 if (output_section == obj_textsec (output_bfd))
116c20d2
NC		 5058 type |= (hresolve->root.type == bfd_link_hash_defined
5059 ? N_TEXT
5060 : N_WEAKT);
252b5132 5061 else if (output_section == obj_datasec (output_bfd))
116c20d2
NC		 5062 type |= (hresolve->root.type == bfd_link_hash_defined
5063 ? N_DATA
5064 : N_WEAKD);
252b5132 5065 else if (output_section == obj_bsssec (output_bfd))
116c20d2
NC		 5066 type |= (hresolve->root.type == bfd_link_hash_defined
5067 ? N_BSS
5068 : N_WEAKB);
252b5132 5069 else
116c20d2
NC		 5070 type |= (hresolve->root.type == bfd_link_hash_defined
5071 ? N_ABS
5072 : N_WEAKA);
5073 }
5074 else if (hresolve->root.type == bfd_link_hash_common)
5075 val = hresolve->root.u.c.size;
5076 else if (hresolve->root.type == bfd_link_hash_undefweak)
5077 {
5078 val = 0;
5079 type = N_WEAKU;
252b5132
RH		 5080 }
5081 else
116c20d2
NC		 5082 val = 0;
5083 }
5084 if (symsec != NULL)
5085 val = (symsec->output_section->vma
5086 + symsec->output_offset
5087 + (GET_WORD (input_bfd, sym->e_value)
5088 - symsec->vma));
5089
5090 /* If this is a global symbol set the written flag, and if
5091 it is a local symbol see if we should discard it. */
5092 if (h != NULL)
5093 {
5094 h->written = TRUE;
5095 h->indx = obj_aout_external_sym_count (output_bfd);
5096 }
5097 else if ((type & N_TYPE) != N_SETT
5098 && (type & N_TYPE) != N_SETD
5099 && (type & N_TYPE) != N_SETB
5100 && (type & N_TYPE) != N_SETA)
5101 {
5102 switch (discard)
252b5132 5103 {
116c20d2
NC		 5104 case discard_none:
5105 case discard_sec_merge:
5106 break;
5107 case discard_l:
5108 if ((type & N_STAB) == 0
5109 && bfd_is_local_label_name (input_bfd, name))
5110 skip = TRUE;
5111 break;
5112 case discard_all:
5113 skip = TRUE;
5114 break;
5115 }
5116 if (skip)
5117 {
5118 pass = FALSE;
5119 continue;
5120 }
5121 }
252b5132 5122
116c20d2
NC		 5123 /* An N_BINCL symbol indicates the start of the stabs
5124 entries for a header file. We need to scan ahead to the
5125 next N_EINCL symbol, ignoring nesting, adding up all the
5126 characters in the symbol names, not including the file
5127 numbers in types (the first number after an open
5128 parenthesis). */
5129 if (type == (int) N_BINCL)
5130 {
5131 struct external_nlist *incl_sym;
5132 int nest;
5133 struct aout_link_includes_entry *incl_entry;
5134 struct aout_link_includes_totals *t;
5135
5136 val = 0;
5137 nest = 0;
5138 for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
5139 {
5140 int incl_type;
5141
5142 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5143 if (incl_type == (int) N_EINCL)
252b5132 5144 {
116c20d2
NC		 5145 if (nest == 0)
5146 break;
5147 --nest;
5148 }
5149 else if (incl_type == (int) N_BINCL)
5150 ++nest;
5151 else if (nest == 0)
5152 {
5153 const char *s;
5154
5155 s = strings + GET_WORD (input_bfd, incl_sym->e_strx);
5156 for (; *s != '\0'; s++)
252b5132 5157 {
116c20d2
NC		 5158 val += *s;
5159 if (*s == '(')
252b5132 5160 {
116c20d2
NC		 5161 /* Skip the file number. */
5162 ++s;
5163 while (ISDIGIT (*s))
5164 ++s;
5165 --s;
252b5132 5166 }
252b5132 5167 }
116c20d2
NC		 5168 }
5169 }
252b5132 5170
116c20d2
NC		 5171 /* If we have already included a header file with the
5172 same value, then replace this one with an N_EXCL
5173 symbol. */
57402f1e
NC		 5174 copy = (bfd_boolean) (! flaginfo->info->keep_memory);
5175 incl_entry = aout_link_includes_lookup (&flaginfo->includes,
116c20d2
NC		 5176 name, TRUE, copy);
5177 if (incl_entry == NULL)
5178 return FALSE;
5179 for (t = incl_entry->totals; t != NULL; t = t->next)
5180 if (t->total == val)
5181 break;
5182 if (t == NULL)
5183 {
5184 /* This is the first time we have seen this header
5185 file with this set of stabs strings. */
a50b1753 5186 t = (struct aout_link_includes_totals *)
57402f1e 5187 bfd_hash_allocate (&flaginfo->includes.root,
116c20d2
NC		 5188 sizeof *t);
5189 if (t == NULL)
5190 return FALSE;
5191 t->total = val;
5192 t->next = incl_entry->totals;
5193 incl_entry->totals = t;
5194 }
5195 else
5196 {
5197 int *incl_map;
5198
5199 /* This is a duplicate header file. We must change
5200 it to be an N_EXCL entry, and mark all the
5201 included symbols to prevent outputting them. */
5202 type = (int) N_EXCL;
5203
5204 nest = 0;
5205 for (incl_sym = sym + 1, incl_map = symbol_map + 1;
5206 incl_sym < sym_end;
5207 incl_sym++, incl_map++)
5208 {
5209 int incl_type;
5210
5211 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5212 if (incl_type == (int) N_EINCL)
5213 {
5214 if (nest == 0)
5215 {
5216 *incl_map = -1;
5217 break;
5218 }
5219 --nest;
252b5132 5220 }
116c20d2
NC		 5221 else if (incl_type == (int) N_BINCL)
5222 ++nest;
5223 else if (nest == 0)
5224 *incl_map = -1;
252b5132 5225 }
252b5132
RH		 5226 }
5227 }
116c20d2
NC		 5228 }
5229
5230 /* Copy this symbol into the list of symbols we are going to
5231 write out. */
5232 H_PUT_8 (output_bfd, type, outsym->e_type);
5233 H_PUT_8 (output_bfd, H_GET_8 (input_bfd, sym->e_other), outsym->e_other);
5234 H_PUT_16 (output_bfd, H_GET_16 (input_bfd, sym->e_desc), outsym->e_desc);
5235 copy = FALSE;
57402f1e 5236 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5237 {
5238 /* name points into a string table which we are going to
5239 free. If there is a hash table entry, use that string.
5240 Otherwise, copy name into memory. */
5241 if (h != NULL)
5242 name = h->root.root.string;
252b5132 5243 else
116c20d2
NC		 5244 copy = TRUE;
5245 }
57402f1e 5246 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 5247 name, copy);
5248 if (strtab_index == (bfd_size_type) -1)
5249 return FALSE;
5250 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
5251 PUT_WORD (output_bfd, val, outsym->e_value);
5252 *symbol_map = obj_aout_external_sym_count (output_bfd);
5253 ++obj_aout_external_sym_count (output_bfd);
5254 ++outsym;
5255 }
252b5132 5256
116c20d2 5257 /* Write out the output symbols we have just constructed. */
57402f1e 5258 if (outsym > flaginfo->output_syms)
116c20d2
NC		 5259 {
5260 bfd_size_type outsym_size;
252b5132 5261
57402f1e 5262 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0)
116c20d2 5263 return FALSE;
57402f1e 5264 outsym_size = outsym - flaginfo->output_syms;
116c20d2 5265 outsym_size *= EXTERNAL_NLIST_SIZE;
57402f1e 5266 if (bfd_bwrite ((void *) flaginfo->output_syms, outsym_size, output_bfd)
116c20d2
NC		 5267 != outsym_size)
5268 return FALSE;
57402f1e 5269 flaginfo->symoff += outsym_size;
116c20d2 5270 }
252b5132 5271
116c20d2
NC		 5272 return TRUE;
5273}
252b5132 5274
116c20d2 5275/* Link an a.out input BFD into the output file. */
252b5132 5276
116c20d2 5277static bfd_boolean
57402f1e 5278aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd)
116c20d2 5279{
116c20d2 5280 BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
252b5132 5281
116c20d2
NC		 5282 /* If this is a dynamic object, it may need special handling. */
5283 if ((input_bfd->flags & DYNAMIC) != 0
5284 && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
5285 return ((*aout_backend_info (input_bfd)->link_dynamic_object)
57402f1e 5286 (flaginfo->info, input_bfd));
252b5132 5287
116c20d2 5288 /* Get the symbols. We probably have them already, unless
57402f1e 5289 flaginfo->info->keep_memory is FALSE. */
116c20d2
NC		 5290 if (! aout_get_external_symbols (input_bfd))
5291 return FALSE;
252b5132 5292
116c20d2 5293 /* Write out the symbols and get a map of the new indices. The map
57402f1e
NC		 5294 is placed into flaginfo->symbol_map. */
5295 if (! aout_link_write_symbols (flaginfo, input_bfd))
116c20d2 5296 return FALSE;
252b5132 5297
116c20d2
NC		 5298 /* Relocate and write out the sections. These functions use the
5299 symbol map created by aout_link_write_symbols. The linker_mark
5300 field will be set if these sections are to be included in the
5301 link, which will normally be the case. */
5302 if (obj_textsec (input_bfd)->linker_mark)
5303 {
57402f1e 5304 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5305 obj_textsec (input_bfd),
57402f1e 5306 &flaginfo->treloff,
116c20d2
NC		 5307 exec_hdr (input_bfd)->a_trsize))
5308 return FALSE;
5309 }
5310 if (obj_datasec (input_bfd)->linker_mark)
5311 {
57402f1e 5312 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5313 obj_datasec (input_bfd),
57402f1e 5314 &flaginfo->dreloff,
116c20d2
NC		 5315 exec_hdr (input_bfd)->a_drsize))
5316 return FALSE;
5317 }
5318
5319 /* If we are not keeping memory, we don't need the symbols any
5320 longer. We still need them if we are keeping memory, because the
5321 strings in the hash table point into them. */
57402f1e 5322 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5323 {
5324 if (! aout_link_free_symbols (input_bfd))
5325 return FALSE;
5326 }
5327
5328 return TRUE;
5329}
5330
5331/* Do the final link step. This is called on the output BFD. The
5332 INFO structure should point to a list of BFDs linked through the
c72f2fb2 5333 link.next field which can be used to find each BFD which takes part
116c20d2
NC		 5334 in the output. Also, each section in ABFD should point to a list
5335 of bfd_link_order structures which list all the input sections for
5336 the output section. */
5337
5338bfd_boolean
5339NAME (aout, final_link) (bfd *abfd,
5340 struct bfd_link_info *info,
5341 void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *))
5342{
5343 struct aout_final_link_info aout_info;
5344 bfd_boolean includes_hash_initialized = FALSE;
5345 bfd *sub;
5346 bfd_size_type trsize, drsize;
5347 bfd_size_type max_contents_size;
5348 bfd_size_type max_relocs_size;
5349 bfd_size_type max_sym_count;
116c20d2
NC		 5350 struct bfd_link_order *p;
5351 asection *o;
5352 bfd_boolean have_link_order_relocs;
5353
0e1862bb 5354 if (bfd_link_pic (info))
116c20d2
NC		 5355 abfd->flags |= DYNAMIC;
5356
5357 aout_info.info = info;
5358 aout_info.output_bfd = abfd;
5359 aout_info.contents = NULL;
5360 aout_info.relocs = NULL;
5361 aout_info.symbol_map = NULL;
5362 aout_info.output_syms = NULL;
252b5132 5363
66eb6687
AM		 5364 if (!bfd_hash_table_init_n (&aout_info.includes.root,
5365 aout_link_includes_newfunc,
5366 sizeof (struct aout_link_includes_entry),
5367 251))
116c20d2
NC		 5368 goto error_return;
5369 includes_hash_initialized = TRUE;
252b5132 5370
116c20d2
NC		 5371 /* Figure out the largest section size. Also, if generating
5372 relocatable output, count the relocs. */
5373 trsize = 0;
5374 drsize = 0;
5375 max_contents_size = 0;
5376 max_relocs_size = 0;
5377 max_sym_count = 0;
c72f2fb2 5378 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2
NC		 5379 {
5380 bfd_size_type sz;
252b5132 5381
0e1862bb 5382 if (bfd_link_relocatable (info))
116c20d2
NC		 5383 {
5384 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
252b5132 5385 {
116c20d2
NC		 5386 trsize += exec_hdr (sub)->a_trsize;
5387 drsize += exec_hdr (sub)->a_drsize;
252b5132 5388 }
252b5132
RH		 5389 else
5390 {
116c20d2
NC		 5391 /* FIXME: We need to identify the .text and .data sections
5392 and call get_reloc_upper_bound and canonicalize_reloc to
5393 work out the number of relocs needed, and then multiply
5394 by the reloc size. */
4eca0228 5395 _bfd_error_handler
695344c0 5396 /* xgettext:c-format */
116c20d2
NC		 5397 (_("%s: relocatable link from %s to %s not supported"),
5398 bfd_get_filename (abfd),
5399 sub->xvec->name, abfd->xvec->name);
5400 bfd_set_error (bfd_error_invalid_operation);
5401 goto error_return;
252b5132 5402 }
116c20d2 5403 }
252b5132 5404
116c20d2
NC		 5405 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
5406 {
5407 sz = obj_textsec (sub)->size;
5408 if (sz > max_contents_size)
5409 max_contents_size = sz;
5410 sz = obj_datasec (sub)->size;
5411 if (sz > max_contents_size)
5412 max_contents_size = sz;
252b5132 5413
116c20d2
NC		 5414 sz = exec_hdr (sub)->a_trsize;
5415 if (sz > max_relocs_size)
5416 max_relocs_size = sz;
5417 sz = exec_hdr (sub)->a_drsize;
5418 if (sz > max_relocs_size)
5419 max_relocs_size = sz;
252b5132 5420
116c20d2
NC		 5421 sz = obj_aout_external_sym_count (sub);
5422 if (sz > max_sym_count)
5423 max_sym_count = sz;
252b5132
RH		 5424 }
5425 }
5426
0e1862bb 5427 if (bfd_link_relocatable (info))
116c20d2
NC		 5428 {
5429 if (obj_textsec (abfd) != NULL)
5430 trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
8423293d 5431 ->map_head.link_order)
116c20d2
NC		 5432 * obj_reloc_entry_size (abfd));
5433 if (obj_datasec (abfd) != NULL)
5434 drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
8423293d 5435 ->map_head.link_order)
116c20d2
NC		 5436 * obj_reloc_entry_size (abfd));
5437 }
252b5132 5438
116c20d2
NC		 5439 exec_hdr (abfd)->a_trsize = trsize;
5440 exec_hdr (abfd)->a_drsize = drsize;
252b5132 5441
116c20d2 5442 exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
252b5132 5443
116c20d2
NC		 5444 /* Adjust the section sizes and vmas according to the magic number.
5445 This sets a_text, a_data and a_bss in the exec_hdr and sets the
5446 filepos for each section. */
3a8c4a5b 5447 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
116c20d2 5448 goto error_return;
252b5132 5449
116c20d2
NC		 5450 /* The relocation and symbol file positions differ among a.out
5451 targets. We are passed a callback routine from the backend
5452 specific code to handle this.
5453 FIXME: At this point we do not know how much space the symbol
5454 table will require. This will not work for any (nonstandard)
5455 a.out target that needs to know the symbol table size before it
5456 can compute the relocation file positions. This may or may not
5457 be the case for the hp300hpux target, for example. */
5458 (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
5459 &aout_info.symoff);
5460 obj_textsec (abfd)->rel_filepos = aout_info.treloff;
5461 obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
5462 obj_sym_filepos (abfd) = aout_info.symoff;
252b5132 5463
116c20d2
NC		 5464 /* We keep a count of the symbols as we output them. */
5465 obj_aout_external_sym_count (abfd) = 0;
5466
5467 /* We accumulate the string table as we write out the symbols. */
5468 aout_info.strtab = _bfd_stringtab_init ();
5469 if (aout_info.strtab == NULL)
5470 goto error_return;
5471
5472 /* Allocate buffers to hold section contents and relocs. */
a50b1753 5473 aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
116c20d2 5474 aout_info.relocs = bfd_malloc (max_relocs_size);
c38eb2a6 5475 aout_info.symbol_map = (int *) bfd_malloc (max_sym_count * sizeof (int));
a50b1753
NC		 5476 aout_info.output_syms = (struct external_nlist *)
5477 bfd_malloc ((max_sym_count + 1) * sizeof (struct external_nlist));
116c20d2
NC		 5478 if ((aout_info.contents == NULL && max_contents_size != 0)
5479 || (aout_info.relocs == NULL && max_relocs_size != 0)
5480 || (aout_info.symbol_map == NULL && max_sym_count != 0)
5481 || aout_info.output_syms == NULL)
5482 goto error_return;
5483
5484 /* If we have a symbol named __DYNAMIC, force it out now. This is
5485 required by SunOS. Doing this here rather than in sunos.c is a
5486 hack, but it's easier than exporting everything which would be
5487 needed. */
5488 {
5489 struct aout_link_hash_entry *h;
5490
5491 h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
5492 FALSE, FALSE, FALSE);
5493 if (h != NULL)
7686d77d 5494 aout_link_write_other_symbol (&h->root.root, &aout_info);
116c20d2
NC		 5495 }
5496
5497 /* The most time efficient way to do the link would be to read all
5498 the input object files into memory and then sort out the
5499 information into the output file. Unfortunately, that will
5500 probably use too much memory. Another method would be to step
5501 through everything that composes the text section and write it
5502 out, and then everything that composes the data section and write
5503 it out, and then write out the relocs, and then write out the
5504 symbols. Unfortunately, that requires reading stuff from each
5505 input file several times, and we will not be able to keep all the
5506 input files open simultaneously, and reopening them will be slow.
5507
5508 What we do is basically process one input file at a time. We do
5509 everything we need to do with an input file once--copy over the
5510 section contents, handle the relocation information, and write
5511 out the symbols--and then we throw away the information we read
5512 from it. This approach requires a lot of lseeks of the output
5513 file, which is unfortunate but still faster than reopening a lot
5514 of files.
5515
5516 We use the output_has_begun field of the input BFDs to see
5517 whether we have already handled it. */
c72f2fb2 5518 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2 5519 sub->output_has_begun = FALSE;
252b5132 5520
116c20d2
NC		 5521 /* Mark all sections which are to be included in the link. This
5522 will normally be every section. We need to do this so that we
5523 can identify any sections which the linker has decided to not
5524 include. */
5525 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5526 {
8423293d 5527 for (p = o->map_head.link_order; p != NULL; p = p->next)
116c20d2
NC		 5528 if (p->type == bfd_indirect_link_order)
5529 p->u.indirect.section->linker_mark = TRUE;
252b5132
RH		 5530 }
5531
116c20d2
NC		 5532 have_link_order_relocs = FALSE;
5533 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5534 {
8423293d 5535 for (p = o->map_head.link_order;
116c20d2
NC		 5536 p != NULL;
5537 p = p->next)
252b5132 5538 {
116c20d2
NC		 5539 if (p->type == bfd_indirect_link_order
5540 && (bfd_get_flavour (p->u.indirect.section->owner)
5541 == bfd_target_aout_flavour))
252b5132 5542 {
116c20d2
NC		 5543 bfd *input_bfd;
5544
5545 input_bfd = p->u.indirect.section->owner;
5546 if (! input_bfd->output_has_begun)
252b5132 5547 {
116c20d2
NC		 5548 if (! aout_link_input_bfd (&aout_info, input_bfd))
5549 goto error_return;
5550 input_bfd->output_has_begun = TRUE;
252b5132 5551 }
252b5132 5552 }
116c20d2
NC		 5553 else if (p->type == bfd_section_reloc_link_order
5554 || p->type == bfd_symbol_reloc_link_order)
5555 {
5556 /* These are handled below. */
5557 have_link_order_relocs = TRUE;
5558 }
5559 else
5560 {
5561 if (! _bfd_default_link_order (abfd, info, o, p))
5562 goto error_return;
5563 }
252b5132
RH		 5564 }
5565 }
252b5132 5566
116c20d2 5567 /* Write out any symbols that we have not already written out. */
7686d77d
AM		 5568 bfd_hash_traverse (&info->hash->table,
5569 aout_link_write_other_symbol,
5570 &aout_info);
116c20d2
NC		 5571
5572 /* Now handle any relocs we were asked to create by the linker.
5573 These did not come from any input file. We must do these after
5574 we have written out all the symbols, so that we know the symbol
5575 indices to use. */
5576 if (have_link_order_relocs)
5577 {
5578 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5579 {
8423293d 5580 for (p = o->map_head.link_order;
116c20d2
NC		 5581 p != NULL;
5582 p = p->next)
5583 {
5584 if (p->type == bfd_section_reloc_link_order
5585 || p->type == bfd_symbol_reloc_link_order)
5586 {
5587 if (! aout_link_reloc_link_order (&aout_info, o, p))
5588 goto error_return;
5589 }
5590 }
252b5132 5591 }
116c20d2 5592 }
252b5132 5593
116c20d2
NC		 5594 if (aout_info.contents != NULL)
5595 {
5596 free (aout_info.contents);
5597 aout_info.contents = NULL;
5598 }
5599 if (aout_info.relocs != NULL)
5600 {
5601 free (aout_info.relocs);
5602 aout_info.relocs = NULL;
5603 }
5604 if (aout_info.symbol_map != NULL)
5605 {
5606 free (aout_info.symbol_map);
5607 aout_info.symbol_map = NULL;
5608 }
5609 if (aout_info.output_syms != NULL)
5610 {
5611 free (aout_info.output_syms);
5612 aout_info.output_syms = NULL;
5613 }
5614 if (includes_hash_initialized)
5615 {
5616 bfd_hash_table_free (&aout_info.includes.root);
5617 includes_hash_initialized = FALSE;
5618 }
252b5132 5619
116c20d2
NC		 5620 /* Finish up any dynamic linking we may be doing. */
5621 if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
5622 {
5623 if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
5624 goto error_return;
252b5132
RH		 5625 }
5626
116c20d2
NC		 5627 /* Update the header information. */
5628 abfd->symcount = obj_aout_external_sym_count (abfd);
5629 exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
5630 obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
5631 obj_textsec (abfd)->reloc_count =
5632 exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
5633 obj_datasec (abfd)->reloc_count =
5634 exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
252b5132 5635
116c20d2 5636 /* Write out the string table, unless there are no symbols. */
f6e688f7
AM		 5637 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0)
5638 goto error_return;
116c20d2
NC		 5639 if (abfd->symcount > 0)
5640 {
f6e688f7 5641 if (!emit_stringtab (abfd, aout_info.strtab))
116c20d2
NC		 5642 goto error_return;
5643 }
f6e688f7 5644 else
116c20d2 5645 {
f6e688f7 5646 bfd_byte b[BYTES_IN_WORD];
252b5132 5647
f6e688f7
AM		 5648 memset (b, 0, BYTES_IN_WORD);
5649 if (bfd_bwrite (b, (bfd_size_type) BYTES_IN_WORD, abfd) != BYTES_IN_WORD)
116c20d2
NC		 5650 goto error_return;
5651 }
252b5132 5652
b34976b6 5653 return TRUE;
116c20d2
NC		 5654
5655 error_return:
5656 if (aout_info.contents != NULL)
5657 free (aout_info.contents);
5658 if (aout_info.relocs != NULL)
5659 free (aout_info.relocs);
5660 if (aout_info.symbol_map != NULL)
5661 free (aout_info.symbol_map);
5662 if (aout_info.output_syms != NULL)
5663 free (aout_info.output_syms);
5664 if (includes_hash_initialized)
5665 bfd_hash_table_free (&aout_info.includes.root);
5666 return FALSE;
252b5132 5667}
GDB Binutils - Deliverables
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