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[deliverable/binutils-gdb.git] / bfd / aoutx.h
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252b5132 1/* BFD semi-generic back-end for a.out binaries.
b3adc24a 2 Copyright (C) 1990-2020 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
a8eb42a8
AM		 36 adds to the basic a.out functions support for sun3, sun4, and
37 386 a.out files, to create a target jump vector for a specific
38 target.
252b5132
RH		 39
40 This information is further split out into more specific files
41 for each machine, including @file{sunos.c} for sun3 and sun4,
5972ac73 42 and @file{demo64.c} for a demonstration of a 64 bit a.out format.
252b5132
RH		 43
44 The base file @file{aoutx.h} defines general mechanisms for
45 reading and writing records to and from disk and various
46 other methods which BFD requires. It is included by
47 @file{aout32.c} and @file{aout64.c} to form the names
48 <<aout_32_swap_exec_header_in>>, <<aout_64_swap_exec_header_in>>, etc.
49
50 As an example, this is what goes on to make the back end for a
51 sun4, from @file{aout32.c}:
52
53| #define ARCH_SIZE 32
54| #include "aoutx.h"
55
56 Which exports names:
57
58| ...
59| aout_32_canonicalize_reloc
60| aout_32_find_nearest_line
61| aout_32_get_lineno
62| aout_32_get_reloc_upper_bound
63| ...
64
65 from @file{sunos.c}:
66
67| #define TARGET_NAME "a.out-sunos-big"
6d00b590 68| #define VECNAME sparc_aout_sunos_be_vec
252b5132
RH		 69| #include "aoutf1.h"
70
71 requires all the names from @file{aout32.c}, and produces the jump vector
72
6d00b590 73| sparc_aout_sunos_be_vec
252b5132
RH		 74
75 The file @file{host-aout.c} is a special case. It is for a large set
76 of hosts that use ``more or less standard'' a.out files, and
77 for which cross-debugging is not interesting. It uses the
78 standard 32-bit a.out support routines, but determines the
79 file offsets and addresses of the text, data, and BSS
80 sections, the machine architecture and machine type, and the
81 entry point address, in a host-dependent manner. Once these
82 values have been determined, generic code is used to handle
83 the object file.
84
85 When porting it to run on a new system, you must supply:
86
87| HOST_PAGE_SIZE
88| HOST_SEGMENT_SIZE
89| HOST_MACHINE_ARCH (optional)
90| HOST_MACHINE_MACHINE (optional)
91| HOST_TEXT_START_ADDR
92| HOST_STACK_END_ADDR
93
94 in the file @file{../include/sys/h-@var{XXX}.h} (for your host). These
95 values, plus the structures and macros defined in @file{a.out.h} on
96 your host system, will produce a BFD target that will access
97 ordinary a.out files on your host. To configure a new machine
98 to use @file{host-aout.c}, specify:
99
100| TDEFAULTS = -DDEFAULT_VECTOR=host_aout_big_vec
101| TDEPFILES= host-aout.o trad-core.o
102
1110793a 103 in the @file{config/@var{XXX}.mt} file, and modify @file{configure.ac}
252b5132
RH		 104 to use the
105 @file{@var{XXX}.mt} file (by setting "<<bfd_target=XXX>>") when your
5ed6aba4 106 configuration is selected. */
252b5132
RH		 107
108/* Some assumptions:
109 * Any BFD with D_PAGED set is ZMAGIC, and vice versa.
110 Doesn't matter what the setting of WP_TEXT is on output, but it'll
111 get set on input.
112 * Any BFD with D_PAGED clear and WP_TEXT set is NMAGIC.
113 * Any BFD with both flags clear is OMAGIC.
114 (Just want to make these explicit, so the conditions tested in this
115 file make sense if you're more familiar with a.out than with BFD.) */
116
117#define KEEPIT udata.i
118
252b5132 119#include "sysdep.h"
3a551c7a 120#include <limits.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
a8eb42a8
AM		 139 The standard records contain only an address, a symbol index,
140 and a type field. The extended records also have a full
141 integer for an addend. */
252b5132 142
252b5132
RH		 143#ifndef CTOR_TABLE_RELOC_HOWTO
144#define CTOR_TABLE_RELOC_IDX 2
923f08ff
AM		 145#define CTOR_TABLE_RELOC_HOWTO(BFD) \
146 ((obj_reloc_entry_size (BFD) == RELOC_EXT_SIZE \
147 ? howto_table_ext : howto_table_std) \
148 + CTOR_TABLE_RELOC_IDX)
252b5132
RH		 149#endif
150
151#ifndef MY_swap_std_reloc_in
116c20d2 152#define MY_swap_std_reloc_in NAME (aout, swap_std_reloc_in)
252b5132
RH		 153#endif
154
1642229e 155#ifndef MY_swap_ext_reloc_in
116c20d2 156#define MY_swap_ext_reloc_in NAME (aout, swap_ext_reloc_in)
1642229e
HPN		 157#endif
158
252b5132 159#ifndef MY_swap_std_reloc_out
116c20d2 160#define MY_swap_std_reloc_out NAME (aout, swap_std_reloc_out)
252b5132
RH		 161#endif
162
1642229e 163#ifndef MY_swap_ext_reloc_out
116c20d2 164#define MY_swap_ext_reloc_out NAME (aout, swap_ext_reloc_out)
1642229e
HPN		 165#endif
166
252b5132
RH		 167#ifndef MY_final_link_relocate
168#define MY_final_link_relocate _bfd_final_link_relocate
169#endif
170
171#ifndef MY_relocate_contents
172#define MY_relocate_contents _bfd_relocate_contents
173#endif
174
116c20d2
NC		 175#define howto_table_ext NAME (aout, ext_howto_table)
176#define howto_table_std NAME (aout, std_howto_table)
252b5132
RH		 177
178reloc_howto_type howto_table_ext[] =
179{
07d6d2b8
AM		 180 /* Type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone. */
181 HOWTO (RELOC_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, 0, "8", FALSE, 0, 0x000000ff, FALSE),
182 HOWTO (RELOC_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, 0, "16", FALSE, 0, 0x0000ffff, FALSE),
183 HOWTO (RELOC_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "32", FALSE, 0, 0xffffffff, FALSE),
184 HOWTO (RELOC_DISP8, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0, "DISP8", FALSE, 0, 0x000000ff, FALSE),
185 HOWTO (RELOC_DISP16, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0, "DISP16", FALSE, 0, 0x0000ffff, FALSE),
186 HOWTO (RELOC_DISP32, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0, "DISP32", FALSE, 0, 0xffffffff, FALSE),
187 HOWTO (RELOC_WDISP30, 2, 2, 30, TRUE, 0, complain_overflow_signed, 0, "WDISP30", FALSE, 0, 0x3fffffff, FALSE),
188 HOWTO (RELOC_WDISP22, 2, 2, 22, TRUE, 0, complain_overflow_signed, 0, "WDISP22", FALSE, 0, 0x003fffff, FALSE),
189 HOWTO (RELOC_HI22, 10, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "HI22", FALSE, 0, 0x003fffff, FALSE),
190 HOWTO (RELOC_22, 0, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "22", FALSE, 0, 0x003fffff, FALSE),
191 HOWTO (RELOC_13, 0, 2, 13, FALSE, 0, complain_overflow_bitfield, 0, "13", FALSE, 0, 0x00001fff, FALSE),
192 HOWTO (RELOC_LO10, 0, 2, 10, FALSE, 0, complain_overflow_dont, 0, "LO10", FALSE, 0, 0x000003ff, FALSE),
193 HOWTO (RELOC_SFA_BASE,0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "SFA_BASE", FALSE, 0, 0xffffffff, FALSE),
194 HOWTO (RELOC_SFA_OFF13,0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "SFA_OFF13", FALSE, 0, 0xffffffff, FALSE),
195 HOWTO (RELOC_BASE10, 0, 2, 10, FALSE, 0, complain_overflow_dont, 0, "BASE10", FALSE, 0, 0x000003ff, FALSE),
196 HOWTO (RELOC_BASE13, 0, 2, 13, FALSE, 0, complain_overflow_signed, 0, "BASE13", FALSE, 0, 0x00001fff, FALSE),
197 HOWTO (RELOC_BASE22, 10, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "BASE22", FALSE, 0, 0x003fffff, FALSE),
198 HOWTO (RELOC_PC10, 0, 2, 10, TRUE, 0, complain_overflow_dont, 0, "PC10", FALSE, 0, 0x000003ff, TRUE),
199 HOWTO (RELOC_PC22, 10, 2, 22, TRUE, 0, complain_overflow_signed, 0, "PC22", FALSE, 0, 0x003fffff, TRUE),
200 HOWTO (RELOC_JMP_TBL, 2, 2, 30, TRUE, 0, complain_overflow_signed, 0, "JMP_TBL", FALSE, 0, 0x3fffffff, FALSE),
116c20d2
NC		 201 HOWTO (RELOC_SEGOFF16,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "SEGOFF16", FALSE, 0, 0x00000000, FALSE),
202 HOWTO (RELOC_GLOB_DAT,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "GLOB_DAT", FALSE, 0, 0x00000000, FALSE),
203 HOWTO (RELOC_JMP_SLOT,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "JMP_SLOT", FALSE, 0, 0x00000000, FALSE),
204 HOWTO (RELOC_RELATIVE,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "RELATIVE", FALSE, 0, 0x00000000, FALSE),
07d6d2b8
AM		 205 HOWTO (0, 0, 3, 0, FALSE, 0, complain_overflow_dont, 0, "R_SPARC_NONE",FALSE, 0, 0x00000000, TRUE),
206 HOWTO (0, 0, 3, 0, FALSE, 0, complain_overflow_dont, 0, "R_SPARC_NONE",FALSE, 0, 0x00000000, TRUE),
252b5132 207#define RELOC_SPARC_REV32 RELOC_WDISP19
07d6d2b8 208 HOWTO (RELOC_SPARC_REV32, 0, 2, 32, FALSE, 0, complain_overflow_dont, 0,"R_SPARC_REV32",FALSE, 0, 0xffffffff, FALSE),
252b5132
RH		 209};
210
211/* Convert standard reloc records to "arelent" format (incl byte swap). */
212
5ed6aba4
NC		 213reloc_howto_type howto_table_std[] =
214{
07d6d2b8
AM		 215 /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone. */
216HOWTO ( 0, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,0,"8", TRUE, 0x000000ff,0x000000ff, FALSE),
217HOWTO ( 1, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,0,"16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
218HOWTO ( 2, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"32", TRUE, 0xffffffff,0xffffffff, FALSE),
219HOWTO ( 3, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,0,"64", TRUE, 0xdeaddead,0xdeaddead, FALSE),
220HOWTO ( 4, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0,"DISP8", TRUE, 0x000000ff,0x000000ff, FALSE),
221HOWTO ( 5, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0,"DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
222HOWTO ( 6, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0,"DISP32", TRUE, 0xffffffff,0xffffffff, FALSE),
223HOWTO ( 7, 0, 4, 64, TRUE, 0, complain_overflow_signed, 0,"DISP64", TRUE, 0xfeedface,0xfeedface, FALSE),
224HOWTO ( 8, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"GOT_REL", FALSE, 0,0x00000000, FALSE),
225HOWTO ( 9, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,0,"BASE16", FALSE,0xffffffff,0xffffffff, FALSE),
226HOWTO (10, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"BASE32", FALSE,0xffffffff,0xffffffff, FALSE),
5f771d47
ILT		 227EMPTY_HOWTO (-1),
228EMPTY_HOWTO (-1),
229EMPTY_HOWTO (-1),
230EMPTY_HOWTO (-1),
231EMPTY_HOWTO (-1),
07d6d2b8 232 HOWTO (16, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"JMP_TABLE", FALSE, 0,0x00000000, FALSE),
5f771d47
ILT		 233EMPTY_HOWTO (-1),
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),
07d6d2b8 248 HOWTO (32, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"RELATIVE", FALSE, 0,0x00000000, FALSE),
5f771d47
ILT		 249EMPTY_HOWTO (-1),
250EMPTY_HOWTO (-1),
251EMPTY_HOWTO (-1),
252EMPTY_HOWTO (-1),
253EMPTY_HOWTO (-1),
254EMPTY_HOWTO (-1),
255EMPTY_HOWTO (-1),
07d6d2b8 256 HOWTO (40, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"BASEREL", FALSE, 0,0x00000000, FALSE),
252b5132
RH		 257};
258
923f08ff 259#define TABLE_SIZE(TABLE) (sizeof (TABLE) / sizeof (TABLE[0]))
252b5132
RH		 260
261reloc_howto_type *
116c20d2 262NAME (aout, reloc_type_lookup) (bfd *abfd, bfd_reloc_code_real_type code)
252b5132 263{
116c20d2
NC		 264#define EXT(i, j) case i: return & howto_table_ext [j]
265#define STD(i, j) case i: return & howto_table_std [j]
252b5132 266 int ext = obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE;
f7c33884 267
252b5132 268 if (code == BFD_RELOC_CTOR)
30d10e9e 269 switch (bfd_arch_bits_per_address (abfd))
252b5132
RH		 270 {
271 case 32:
272 code = BFD_RELOC_32;
273 break;
274 case 64:
275 code = BFD_RELOC_64;
276 break;
277 }
f7c33884 278
252b5132
RH		 279 if (ext)
280 switch (code)
281 {
1642229e
HPN		 282 EXT (BFD_RELOC_8, 0);
283 EXT (BFD_RELOC_16, 1);
252b5132
RH		 284 EXT (BFD_RELOC_32, 2);
285 EXT (BFD_RELOC_HI22, 8);
286 EXT (BFD_RELOC_LO10, 11);
287 EXT (BFD_RELOC_32_PCREL_S2, 6);
288 EXT (BFD_RELOC_SPARC_WDISP22, 7);
289 EXT (BFD_RELOC_SPARC13, 10);
290 EXT (BFD_RELOC_SPARC_GOT10, 14);
291 EXT (BFD_RELOC_SPARC_BASE13, 15);
292 EXT (BFD_RELOC_SPARC_GOT13, 15);
293 EXT (BFD_RELOC_SPARC_GOT22, 16);
294 EXT (BFD_RELOC_SPARC_PC10, 17);
295 EXT (BFD_RELOC_SPARC_PC22, 18);
296 EXT (BFD_RELOC_SPARC_WPLT30, 19);
297 EXT (BFD_RELOC_SPARC_REV32, 26);
116c20d2
NC		 298 default:
299 return NULL;
252b5132
RH		 300 }
301 else
f7c33884 302 /* std relocs. */
252b5132
RH		 303 switch (code)
304 {
2846975a 305 STD (BFD_RELOC_8, 0);
252b5132
RH		 306 STD (BFD_RELOC_16, 1);
307 STD (BFD_RELOC_32, 2);
308 STD (BFD_RELOC_8_PCREL, 4);
309 STD (BFD_RELOC_16_PCREL, 5);
310 STD (BFD_RELOC_32_PCREL, 6);
311 STD (BFD_RELOC_16_BASEREL, 9);
312 STD (BFD_RELOC_32_BASEREL, 10);
116c20d2
NC		 313 default:
314 return NULL;
252b5132
RH		 315 }
316}
317
157090f7
AM		 318reloc_howto_type *
319NAME (aout, reloc_name_lookup) (bfd *abfd, const char *r_name)
320{
321 unsigned int i, size;
322 reloc_howto_type *howto_table;
323
324 if (obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE)
325 {
326 howto_table = howto_table_ext;
327 size = sizeof (howto_table_ext) / sizeof (howto_table_ext[0]);
328 }
329 else
330 {
331 howto_table = howto_table_std;
332 size = sizeof (howto_table_std) / sizeof (howto_table_std[0]);
333 }
334
335 for (i = 0; i < size; i++)
336 if (howto_table[i].name != NULL
337 && strcasecmp (howto_table[i].name, r_name) == 0)
338 return &howto_table[i];
339
340 return NULL;
341}
342
252b5132
RH		 343/*
344SUBSECTION
345 Internal entry points
346
347DESCRIPTION
348 @file{aoutx.h} exports several routines for accessing the
349 contents of an a.out file, which are gathered and exported in
350 turn by various format specific files (eg sunos.c).
252b5132
RH		 351*/
352
353/*
354FUNCTION
355 aout_@var{size}_swap_exec_header_in
356
357SYNOPSIS
358 void aout_@var{size}_swap_exec_header_in,
07d6d2b8
AM		 359 (bfd *abfd,
360 struct external_exec *bytes,
361 struct internal_exec *execp);
252b5132
RH		 362
363DESCRIPTION
364 Swap the information in an executable header @var{raw_bytes} taken
365 from a raw byte stream memory image into the internal exec header
366 structure @var{execp}.
367*/
368
369#ifndef NAME_swap_exec_header_in
370void
116c20d2
NC		 371NAME (aout, swap_exec_header_in) (bfd *abfd,
372 struct external_exec *bytes,
373 struct internal_exec *execp)
252b5132 374{
252b5132
RH		 375 /* The internal_exec structure has some fields that are unused in this
376 configuration (IE for i960), so ensure that all such uninitialized
377 fields are zero'd out. There are places where two of these structs
0ef5a5bd 378 are memcmp'd, and thus the contents do matter. */
116c20d2 379 memset ((void *) execp, 0, sizeof (struct internal_exec));
252b5132 380 /* Now fill in fields in the execp, from the bytes in the raw data. */
dc810e39 381 execp->a_info = H_GET_32 (abfd, bytes->e_info);
252b5132
RH		 382 execp->a_text = GET_WORD (abfd, bytes->e_text);
383 execp->a_data = GET_WORD (abfd, bytes->e_data);
384 execp->a_bss = GET_WORD (abfd, bytes->e_bss);
385 execp->a_syms = GET_WORD (abfd, bytes->e_syms);
386 execp->a_entry = GET_WORD (abfd, bytes->e_entry);
387 execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
388 execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
389}
116c20d2 390#define NAME_swap_exec_header_in NAME (aout, swap_exec_header_in)
252b5132
RH		 391#endif
392
393/*
394FUNCTION
395 aout_@var{size}_swap_exec_header_out
396
397SYNOPSIS
398 void aout_@var{size}_swap_exec_header_out
399 (bfd *abfd,
400 struct internal_exec *execp,
401 struct external_exec *raw_bytes);
402
403DESCRIPTION
404 Swap the information in an internal exec header structure
405 @var{execp} into the buffer @var{raw_bytes} ready for writing to disk.
406*/
407void
116c20d2
NC		 408NAME (aout, swap_exec_header_out) (bfd *abfd,
409 struct internal_exec *execp,
410 struct external_exec *bytes)
252b5132 411{
0ef5a5bd 412 /* Now fill in fields in the raw data, from the fields in the exec struct. */
dc810e39 413 H_PUT_32 (abfd, execp->a_info , bytes->e_info);
252b5132
RH		 414 PUT_WORD (abfd, execp->a_text , bytes->e_text);
415 PUT_WORD (abfd, execp->a_data , bytes->e_data);
416 PUT_WORD (abfd, execp->a_bss , bytes->e_bss);
417 PUT_WORD (abfd, execp->a_syms , bytes->e_syms);
418 PUT_WORD (abfd, execp->a_entry , bytes->e_entry);
419 PUT_WORD (abfd, execp->a_trsize, bytes->e_trsize);
420 PUT_WORD (abfd, execp->a_drsize, bytes->e_drsize);
421}
422
423/* Make all the section for an a.out file. */
424
b34976b6 425bfd_boolean
116c20d2 426NAME (aout, make_sections) (bfd *abfd)
252b5132 427{
116c20d2 428 if (obj_textsec (abfd) == NULL && bfd_make_section (abfd, ".text") == NULL)
b34976b6 429 return FALSE;
116c20d2 430 if (obj_datasec (abfd) == NULL && bfd_make_section (abfd, ".data") == NULL)
b34976b6 431 return FALSE;
116c20d2 432 if (obj_bsssec (abfd) == NULL && bfd_make_section (abfd, ".bss") == NULL)
b34976b6
AM		 433 return FALSE;
434 return TRUE;
252b5132
RH		 435}
436
437/*
438FUNCTION
439 aout_@var{size}_some_aout_object_p
440
441SYNOPSIS
442 const bfd_target *aout_@var{size}_some_aout_object_p
443 (bfd *abfd,
07d6d2b8 444 struct internal_exec *execp,
116c20d2 445 const bfd_target *(*callback_to_real_object_p) (bfd *));
252b5132
RH		 446
447DESCRIPTION
448 Some a.out variant thinks that the file open in @var{abfd}
449 checking is an a.out file. Do some more checking, and set up
450 for access if it really is. Call back to the calling
451 environment's "finish up" function just before returning, to
452 handle any last-minute setup.
453*/
454
cb001c0d 455bfd_cleanup
116c20d2
NC		 456NAME (aout, some_aout_object_p) (bfd *abfd,
457 struct internal_exec *execp,
cb001c0d 458 bfd_cleanup (*callback_to_real_object_p) (bfd *))
252b5132
RH		 459{
460 struct aout_data_struct *rawptr, *oldrawptr;
cb001c0d 461 bfd_cleanup result;
986f0783 462 size_t amt = sizeof (* rawptr);
252b5132 463
a50b1753 464 rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
252b5132 465 if (rawptr == NULL)
116c20d2 466 return NULL;
252b5132
RH		 467
468 oldrawptr = abfd->tdata.aout_data;
469 abfd->tdata.aout_data = rawptr;
470
dc12032b 471 /* Copy the contents of the old tdata struct. */
252b5132
RH		 472 if (oldrawptr != NULL)
473 *abfd->tdata.aout_data = *oldrawptr;
474
475 abfd->tdata.aout_data->a.hdr = &rawptr->e;
f7c33884
NC		 476 /* Copy in the internal_exec struct. */
477 *(abfd->tdata.aout_data->a.hdr) = *execp;
252b5132
RH		 478 execp = abfd->tdata.aout_data->a.hdr;
479
f7c33884 480 /* Set the file flags. */
252b5132
RH		 481 abfd->flags = BFD_NO_FLAGS;
482 if (execp->a_drsize || execp->a_trsize)
483 abfd->flags |= HAS_RELOC;
f7c33884 484 /* Setting of EXEC_P has been deferred to the bottom of this function. */
252b5132
RH		 485 if (execp->a_syms)
486 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
bbb1afc8 487 if (N_DYNAMIC (execp))
252b5132
RH		 488 abfd->flags |= DYNAMIC;
489
bbb1afc8 490 if (N_MAGIC (execp) == ZMAGIC)
252b5132
RH		 491 {
492 abfd->flags |= D_PAGED | WP_TEXT;
493 adata (abfd).magic = z_magic;
494 }
bbb1afc8 495 else if (N_MAGIC (execp) == QMAGIC)
252b5132
RH		 496 {
497 abfd->flags |= D_PAGED | WP_TEXT;
498 adata (abfd).magic = z_magic;
499 adata (abfd).subformat = q_magic_format;
500 }
bbb1afc8 501 else if (N_MAGIC (execp) == NMAGIC)
252b5132
RH		 502 {
503 abfd->flags |= WP_TEXT;
504 adata (abfd).magic = n_magic;
505 }
bbb1afc8
AM		 506 else if (N_MAGIC (execp) == OMAGIC
507 || N_MAGIC (execp) == BMAGIC)
252b5132
RH		 508 adata (abfd).magic = o_magic;
509 else
116c20d2
NC		 510 /* Should have been checked with N_BADMAG before this routine
511 was called. */
512 abort ();
252b5132 513
ed48ec2e 514 abfd->start_address = execp->a_entry;
252b5132 515
116c20d2 516 obj_aout_symbols (abfd) = NULL;
ed48ec2e 517 abfd->symcount = execp->a_syms / sizeof (struct external_nlist);
252b5132
RH		 518
519 /* The default relocation entry size is that of traditional V7 Unix. */
520 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
521
0ef5a5bd 522 /* The default symbol entry size is that of traditional Unix. */
252b5132
RH		 523 obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE;
524
525#ifdef USE_MMAP
526 bfd_init_window (&obj_aout_sym_window (abfd));
527 bfd_init_window (&obj_aout_string_window (abfd));
528#endif
529 obj_aout_external_syms (abfd) = NULL;
530 obj_aout_external_strings (abfd) = NULL;
531 obj_aout_sym_hashes (abfd) = NULL;
532
116c20d2 533 if (! NAME (aout, make_sections) (abfd))
487e54f2 534 goto error_ret;
252b5132 535
eea6121a
AM		 536 obj_datasec (abfd)->size = execp->a_data;
537 obj_bsssec (abfd)->size = execp->a_bss;
252b5132
RH		 538
539 obj_textsec (abfd)->flags =
540 (execp->a_trsize != 0
541 ? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC)
542 : (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS));
543 obj_datasec (abfd)->flags =
544 (execp->a_drsize != 0
545 ? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC)
546 : (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS));
547 obj_bsssec (abfd)->flags = SEC_ALLOC;
548
549#ifdef THIS_IS_ONLY_DOCUMENTATION
550 /* The common code can't fill in these things because they depend
551 on either the start address of the text segment, the rounding
552 up of virtual addresses between segments, or the starting file
553 position of the text segment -- all of which varies among different
554 versions of a.out. */
555
556 /* Call back to the format-dependent code to fill in the rest of the
557 fields and do any further cleanup. Things that should be filled
558 in by the callback: */
559
560 struct exec *execp = exec_hdr (abfd);
561
bbb1afc8 562 obj_textsec (abfd)->size = N_TXTSIZE (execp);
f7c33884 563 /* Data and bss are already filled in since they're so standard. */
252b5132 564
f7c33884 565 /* The virtual memory addresses of the sections. */
bbb1afc8
AM		 566 obj_textsec (abfd)->vma = N_TXTADDR (execp);
567 obj_datasec (abfd)->vma = N_DATADDR (execp);
568 obj_bsssec (abfd)->vma = N_BSSADDR (execp);
252b5132 569
f7c33884 570 /* The file offsets of the sections. */
bbb1afc8
AM		 571 obj_textsec (abfd)->filepos = N_TXTOFF (execp);
572 obj_datasec (abfd)->filepos = N_DATOFF (execp);
252b5132 573
f7c33884 574 /* The file offsets of the relocation info. */
bbb1afc8
AM		 575 obj_textsec (abfd)->rel_filepos = N_TRELOFF (execp);
576 obj_datasec (abfd)->rel_filepos = N_DRELOFF (execp);
252b5132
RH		 577
578 /* The file offsets of the string table and symbol table. */
bbb1afc8
AM		 579 obj_str_filepos (abfd) = N_STROFF (execp);
580 obj_sym_filepos (abfd) = N_SYMOFF (execp);
252b5132
RH		 581
582 /* Determine the architecture and machine type of the object file. */
bbb1afc8 583 switch (N_MACHTYPE (exec_hdr (abfd)))
923f08ff
AM		 584 {
585 default:
586 abfd->obj_arch = bfd_arch_obscure;
587 break;
588 }
252b5132 589
923f08ff
AM		 590 adata (abfd)->page_size = TARGET_PAGE_SIZE;
591 adata (abfd)->segment_size = SEGMENT_SIZE;
592 adata (abfd)->exec_bytes_size = EXEC_BYTES_SIZE;
252b5132 593
cb001c0d 594 return _bfd_no_cleanup
252b5132
RH		 595
596 /* The architecture is encoded in various ways in various a.out variants,
597 or is not encoded at all in some of them. The relocation size depends
598 on the architecture and the a.out variant. Finally, the return value
599 is the bfd_target vector in use. If an error occurs, return zero and
600 set bfd_error to the appropriate error code.
601
602 Formats such as b.out, which have additional fields in the a.out
603 header, should cope with them in this callback as well. */
604#endif /* DOCUMENTATION */
605
beb0d161 606 result = (*callback_to_real_object_p) (abfd);
252b5132
RH		 607
608 /* Now that the segment addresses have been worked out, take a better
609 guess at whether the file is executable. If the entry point
610 is within the text segment, assume it is. (This makes files
611 executable even if their entry point address is 0, as long as
612 their text starts at zero.).
613
614 This test had to be changed to deal with systems where the text segment
615 runs at a different location than the default. The problem is that the
616 entry address can appear to be outside the text segment, thus causing an
617 erroneous conclusion that the file isn't executable.
618
619 To fix this, we now accept any non-zero entry point as an indication of
620 executability. This will work most of the time, since only the linker
0ef5a5bd 621 sets the entry point, and that is likely to be non-zero for most systems. */
252b5132
RH		 622
623 if (execp->a_entry != 0
923f08ff
AM		 624 || (execp->a_entry >= obj_textsec (abfd)->vma
625 && execp->a_entry < (obj_textsec (abfd)->vma
4c1534c7
AM		 626 + obj_textsec (abfd)->size)
627 && execp->a_trsize == 0
628 && execp->a_drsize == 0))
252b5132
RH		 629 abfd->flags |= EXEC_P;
630#ifdef STAT_FOR_EXEC
631 else
632 {
633 struct stat stat_buf;
634
635 /* The original heuristic doesn't work in some important cases.
07d6d2b8
AM		 636 The a.out file has no information about the text start
637 address. For files (like kernels) linked to non-standard
638 addresses (ld -Ttext nnn) the entry point may not be between
639 the default text start (obj_textsec(abfd)->vma) and
640 (obj_textsec(abfd)->vma) + text size. This is not just a mach
641 issue. Many kernels are loaded at non standard addresses. */
252b5132
RH		 642 if (abfd->iostream != NULL
643 && (abfd->flags & BFD_IN_MEMORY) == 0
923f08ff 644 && (fstat (fileno ((FILE *) (abfd->iostream)), &stat_buf) == 0)
252b5132
RH		 645 && ((stat_buf.st_mode & 0111) != 0))
646 abfd->flags |= EXEC_P;
647 }
648#endif /* STAT_FOR_EXEC */
649
650 if (result)
0e71e495 651 return result;
487e54f2
AM		 652
653 error_ret:
654 bfd_release (abfd, rawptr);
655 abfd->tdata.aout_data = oldrawptr;
656 return NULL;
252b5132
RH		 657}
658
659/*
660FUNCTION
661 aout_@var{size}_mkobject
662
663SYNOPSIS
b34976b6 664 bfd_boolean aout_@var{size}_mkobject, (bfd *abfd);
252b5132
RH		 665
666DESCRIPTION
667 Initialize BFD @var{abfd} for use with a.out files.
668*/
669
b34976b6 670bfd_boolean
116c20d2 671NAME (aout, mkobject) (bfd *abfd)
252b5132 672{
dc810e39 673 struct aout_data_struct *rawptr;
986f0783 674 size_t amt = sizeof (* rawptr);
252b5132
RH		 675
676 bfd_set_error (bfd_error_system_call);
677
a50b1753 678 rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
252b5132 679 if (rawptr == NULL)
b34976b6 680 return FALSE;
252b5132
RH		 681
682 abfd->tdata.aout_data = rawptr;
683 exec_hdr (abfd) = &(rawptr->e);
684
116c20d2
NC		 685 obj_textsec (abfd) = NULL;
686 obj_datasec (abfd) = NULL;
687 obj_bsssec (abfd) = NULL;
252b5132 688
b34976b6 689 return TRUE;
252b5132
RH		 690}
691
252b5132
RH		 692/*
693FUNCTION
694 aout_@var{size}_machine_type
695
696SYNOPSIS
697 enum machine_type aout_@var{size}_machine_type
698 (enum bfd_architecture arch,
116c20d2 699 unsigned long machine,
07d6d2b8 700 bfd_boolean *unknown);
252b5132
RH		 701
702DESCRIPTION
703 Keep track of machine architecture and machine type for
704 a.out's. Return the <<machine_type>> for a particular
705 architecture and machine, or <<M_UNKNOWN>> if that exact architecture
706 and machine can't be represented in a.out format.
707
708 If the architecture is understood, machine type 0 (default)
709 is always understood.
710*/
711
712enum machine_type
116c20d2
NC		 713NAME (aout, machine_type) (enum bfd_architecture arch,
714 unsigned long machine,
715 bfd_boolean *unknown)
252b5132
RH		 716{
717 enum machine_type arch_flags;
718
719 arch_flags = M_UNKNOWN;
b34976b6 720 *unknown = TRUE;
252b5132 721
923f08ff
AM		 722 switch (arch)
723 {
724 case bfd_arch_sparc:
725 if (machine == 0
726 || machine == bfd_mach_sparc
727 || machine == bfd_mach_sparc_sparclite
728 || machine == bfd_mach_sparc_sparclite_le
74d26813
L		 729 || machine == bfd_mach_sparc_v8plus
730 || machine == bfd_mach_sparc_v8plusa
731 || machine == bfd_mach_sparc_v8plusb
07d6d2b8
AM		 732 || machine == bfd_mach_sparc_v8plusc
733 || machine == bfd_mach_sparc_v8plusd
734 || machine == bfd_mach_sparc_v8pluse
735 || machine == bfd_mach_sparc_v8plusv
736 || machine == bfd_mach_sparc_v8plusm
737 || machine == bfd_mach_sparc_v8plusm8
74d26813
L		 738 || machine == bfd_mach_sparc_v9
739 || machine == bfd_mach_sparc_v9a
4f26fb3a 740 || machine == bfd_mach_sparc_v9b
07d6d2b8
AM		 741 || machine == bfd_mach_sparc_v9c
742 || machine == bfd_mach_sparc_v9d
743 || machine == bfd_mach_sparc_v9e
744 || machine == bfd_mach_sparc_v9v
64517994 745 || machine == bfd_mach_sparc_v9m
07d6d2b8 746 || machine == bfd_mach_sparc_v9m8)
923f08ff
AM		 747 arch_flags = M_SPARC;
748 else if (machine == bfd_mach_sparc_sparclet)
749 arch_flags = M_SPARCLET;
750 break;
751
923f08ff 752 case bfd_arch_i386:
3b77b1d5
AM		 753 if (machine == 0
754 || machine == bfd_mach_i386_i386
755 || machine == bfd_mach_i386_i386_intel_syntax)
923f08ff 756 arch_flags = M_386;
252b5132 757 break;
923f08ff 758
923f08ff
AM		 759 case bfd_arch_arm:
760 if (machine == 0)
761 arch_flags = M_ARM;
252b5132 762 break;
252b5132 763
923f08ff
AM		 764 case bfd_arch_mips:
765 switch (machine)
766 {
767 case 0:
768 case bfd_mach_mips3000:
769 case bfd_mach_mips3900:
770 arch_flags = M_MIPS1;
771 break;
772 case bfd_mach_mips6000:
773 arch_flags = M_MIPS2;
774 break;
775 case bfd_mach_mips4000:
776 case bfd_mach_mips4010:
777 case bfd_mach_mips4100:
778 case bfd_mach_mips4300:
779 case bfd_mach_mips4400:
780 case bfd_mach_mips4600:
781 case bfd_mach_mips4650:
782 case bfd_mach_mips8000:
0d2e43ed 783 case bfd_mach_mips9000:
923f08ff
AM		 784 case bfd_mach_mips10000:
785 case bfd_mach_mips12000:
3aa3176b
TS		 786 case bfd_mach_mips14000:
787 case bfd_mach_mips16000:
923f08ff
AM		 788 case bfd_mach_mips16:
789 case bfd_mach_mipsisa32:
af7ee8bf 790 case bfd_mach_mipsisa32r2:
ae52f483
AB		 791 case bfd_mach_mipsisa32r3:
792 case bfd_mach_mipsisa32r5:
7361da2c 793 case bfd_mach_mipsisa32r6:
923f08ff
AM		 794 case bfd_mach_mips5:
795 case bfd_mach_mipsisa64:
5f74bc13 796 case bfd_mach_mipsisa64r2:
ae52f483
AB		 797 case bfd_mach_mipsisa64r3:
798 case bfd_mach_mipsisa64r5:
7361da2c 799 case bfd_mach_mipsisa64r6:
923f08ff 800 case bfd_mach_mips_sb1:
52b6b6b9 801 case bfd_mach_mips_xlr:
923f08ff
AM		 802 /* FIXME: These should be MIPS3, MIPS4, MIPS16, MIPS32, etc. */
803 arch_flags = M_MIPS2;
804 break;
805 default:
806 arch_flags = M_UNKNOWN;
807 break;
808 }
809 break;
810
811 case bfd_arch_ns32k:
812 switch (machine)
813 {
07d6d2b8 814 case 0: arch_flags = M_NS32532; break;
923f08ff
AM		 815 case 32032: arch_flags = M_NS32032; break;
816 case 32532: arch_flags = M_NS32532; break;
817 default: arch_flags = M_UNKNOWN; break;
818 }
819 break;
252b5132 820
923f08ff 821 case bfd_arch_vax:
b34976b6 822 *unknown = FALSE;
923f08ff 823 break;
06c15ad7 824
923f08ff
AM		 825 case bfd_arch_cris:
826 if (machine == 0 || machine == 255)
827 arch_flags = M_CRIS;
828 break;
829
830 default:
831 arch_flags = M_UNKNOWN;
832 }
252b5132
RH		 833
834 if (arch_flags != M_UNKNOWN)
b34976b6 835 *unknown = FALSE;
252b5132
RH		 836
837 return arch_flags;
838}
839
252b5132
RH		 840/*
841FUNCTION
842 aout_@var{size}_set_arch_mach
843
844SYNOPSIS
b34976b6 845 bfd_boolean aout_@var{size}_set_arch_mach,
252b5132
RH		 846 (bfd *,
847 enum bfd_architecture arch,
116c20d2 848 unsigned long machine);
252b5132
RH		 849
850DESCRIPTION
851 Set the architecture and the machine of the BFD @var{abfd} to the
852 values @var{arch} and @var{machine}. Verify that @var{abfd}'s format
853 can support the architecture required.
854*/
855
b34976b6 856bfd_boolean
116c20d2
NC		 857NAME (aout, set_arch_mach) (bfd *abfd,
858 enum bfd_architecture arch,
859 unsigned long machine)
252b5132
RH		 860{
861 if (! bfd_default_set_arch_mach (abfd, arch, machine))
b34976b6 862 return FALSE;
252b5132
RH		 863
864 if (arch != bfd_arch_unknown)
865 {
b34976b6 866 bfd_boolean unknown;
252b5132 867
116c20d2 868 NAME (aout, machine_type) (arch, machine, &unknown);
252b5132 869 if (unknown)
b34976b6 870 return FALSE;
252b5132
RH		 871 }
872
f7c33884 873 /* Determine the size of a relocation entry. */
923f08ff
AM		 874 switch (arch)
875 {
876 case bfd_arch_sparc:
923f08ff
AM		 877 case bfd_arch_mips:
878 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
879 break;
880 default:
881 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
882 break;
883 }
252b5132 884
923f08ff 885 return (*aout_backend_info (abfd)->set_sizes) (abfd);
252b5132
RH		 886}
887
888static void
116c20d2 889adjust_o_magic (bfd *abfd, struct internal_exec *execp)
252b5132
RH		 890{
891 file_ptr pos = adata (abfd).exec_bytes_size;
892 bfd_vma vma = 0;
893 int pad = 0;
dda2980f
AM		 894 asection *text = obj_textsec (abfd);
895 asection *data = obj_datasec (abfd);
896 asection *bss = obj_bsssec (abfd);
252b5132
RH		 897
898 /* Text. */
dda2980f
AM		 899 text->filepos = pos;
900 if (!text->user_set_vma)
901 text->vma = vma;
252b5132 902 else
dda2980f 903 vma = text->vma;
252b5132 904
dda2980f
AM		 905 pos += execp->a_text;
906 vma += execp->a_text;
252b5132
RH		 907
908 /* Data. */
dda2980f 909 if (!data->user_set_vma)
252b5132 910 {
252b5132
RH		 911 pos += pad;
912 vma += pad;
dda2980f 913 data->vma = vma;
252b5132
RH		 914 }
915 else
dda2980f
AM		 916 vma = data->vma;
917 execp->a_text += pad;
918
919 data->filepos = pos;
920 pos += data->size;
921 vma += data->size;
252b5132
RH		 922
923 /* BSS. */
dda2980f 924 if (!bss->user_set_vma)
252b5132 925 {
252b5132
RH		 926 pos += pad;
927 vma += pad;
dda2980f 928 bss->vma = vma;
252b5132
RH		 929 }
930 else
931 {
08da05b0 932 /* The VMA of the .bss section is set by the VMA of the
07d6d2b8
AM		 933 .data section plus the size of the .data section. We may
934 need to add padding bytes to make this true. */
dda2980f
AM		 935 pad = bss->vma - vma;
936 if (pad < 0)
937 pad = 0;
938 pos += pad;
252b5132 939 }
dda2980f
AM		 940 execp->a_data = data->size + pad;
941 bss->filepos = pos;
942 execp->a_bss = bss->size;
252b5132 943
bbb1afc8 944 N_SET_MAGIC (execp, OMAGIC);
252b5132
RH		 945}
946
947static void
116c20d2 948adjust_z_magic (bfd *abfd, struct internal_exec *execp)
252b5132
RH		 949{
950 bfd_size_type data_pad, text_pad;
951 file_ptr text_end;
dc810e39 952 const struct aout_backend_data *abdp;
116c20d2
NC		 953 /* TRUE if text includes exec header. */
954 bfd_boolean ztih;
dda2980f
AM		 955 asection *text = obj_textsec (abfd);
956 asection *data = obj_datasec (abfd);
957 asection *bss = obj_bsssec (abfd);
0ef5a5bd 958
252b5132
RH		 959 abdp = aout_backend_info (abfd);
960
961 /* Text. */
962 ztih = (abdp != NULL
963 && (abdp->text_includes_header
964 || obj_aout_subformat (abfd) == q_magic_format));
dda2980f
AM		 965 text->filepos = (ztih
966 ? adata (abfd).exec_bytes_size
967 : adata (abfd).zmagic_disk_block_size);
968 if (!text->user_set_vma)
252b5132
RH		 969 {
970 /* ?? Do we really need to check for relocs here? */
dda2980f
AM		 971 text->vma = ((abfd->flags & HAS_RELOC)
972 ? 0
973 : (ztih
974 ? abdp->default_text_vma + adata (abfd).exec_bytes_size
975 : abdp->default_text_vma));
252b5132
RH		 976 text_pad = 0;
977 }
978 else
979 {
980 /* The .text section is being loaded at an unusual address. We
07d6d2b8
AM		 981 may need to pad it such that the .data section starts at a page
982 boundary. */
252b5132 983 if (ztih)
dda2980f 984 text_pad = ((text->filepos - text->vma)
252b5132
RH		 985 & (adata (abfd).page_size - 1));
986 else
dda2980f 987 text_pad = (-text->vma
252b5132
RH		 988 & (adata (abfd).page_size - 1));
989 }
990
991 /* Find start of data. */
992 if (ztih)
993 {
dda2980f 994 text_end = text->filepos + execp->a_text;
252b5132
RH		 995 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
996 }
997 else
998 {
999 /* Note that if page_size == zmagic_disk_block_size, then
1000 filepos == page_size, and this case is the same as the ztih
1001 case. */
dda2980f 1002 text_end = execp->a_text;
252b5132 1003 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
dda2980f 1004 text_end += text->filepos;
252b5132 1005 }
dda2980f 1006 execp->a_text += text_pad;
252b5132
RH		 1007
1008 /* Data. */
dda2980f 1009 if (!data->user_set_vma)
252b5132
RH		 1010 {
1011 bfd_vma vma;
dda2980f
AM		 1012 vma = text->vma + execp->a_text;
1013 data->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
252b5132
RH		 1014 }
1015 if (abdp && abdp->zmagic_mapped_contiguous)
1016 {
dda2980f 1017 text_pad = data->vma - (text->vma + execp->a_text);
dee0a8f4
NC		 1018 /* Only pad the text section if the data
1019 section is going to be placed after it. */
1020 if (text_pad > 0)
dda2980f 1021 execp->a_text += text_pad;
252b5132 1022 }
dda2980f 1023 data->filepos = text->filepos + execp->a_text;
0ef5a5bd 1024
252b5132 1025 /* Fix up exec header while we're at it. */
252b5132 1026 if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted)))
923f08ff 1027 execp->a_text += adata (abfd).exec_bytes_size;
252b5132 1028 if (obj_aout_subformat (abfd) == q_magic_format)
bbb1afc8 1029 N_SET_MAGIC (execp, QMAGIC);
252b5132 1030 else
bbb1afc8 1031 N_SET_MAGIC (execp, ZMAGIC);
252b5132
RH		 1032
1033 /* Spec says data section should be rounded up to page boundary. */
dda2980f
AM		 1034 execp->a_data = align_power (data->size, bss->alignment_power);
1035 execp->a_data = BFD_ALIGN (execp->a_data, adata (abfd).page_size);
1036 data_pad = execp->a_data - data->size;
252b5132
RH		 1037
1038 /* BSS. */
dda2980f
AM		 1039 if (!bss->user_set_vma)
1040 bss->vma = data->vma + execp->a_data;
252b5132
RH		 1041 /* If the BSS immediately follows the data section and extra space
1042 in the page is left after the data section, fudge data
1043 in the header so that the bss section looks smaller by that
1044 amount. We'll start the bss section there, and lie to the OS.
1045 (Note that a linker script, as well as the above assignment,
1046 could have explicitly set the BSS vma to immediately follow
1047 the data section.) */
dda2980f
AM		 1048 if (align_power (bss->vma, bss->alignment_power) == data->vma + execp->a_data)
1049 execp->a_bss = data_pad > bss->size ? 0 : bss->size - data_pad;
252b5132 1050 else
dda2980f 1051 execp->a_bss = bss->size;
252b5132
RH		 1052}
1053
1054static void
116c20d2 1055adjust_n_magic (bfd *abfd, struct internal_exec *execp)
252b5132 1056{
923f08ff 1057 file_ptr pos = adata (abfd).exec_bytes_size;
252b5132
RH		 1058 bfd_vma vma = 0;
1059 int pad;
dda2980f
AM		 1060 asection *text = obj_textsec (abfd);
1061 asection *data = obj_datasec (abfd);
1062 asection *bss = obj_bsssec (abfd);
0ef5a5bd 1063
252b5132 1064 /* Text. */
dda2980f
AM		 1065 text->filepos = pos;
1066 if (!text->user_set_vma)
1067 text->vma = vma;
252b5132 1068 else
dda2980f
AM		 1069 vma = text->vma;
1070 pos += execp->a_text;
1071 vma += execp->a_text;
252b5132
RH		 1072
1073 /* Data. */
dda2980f
AM		 1074 data->filepos = pos;
1075 if (!data->user_set_vma)
1076 data->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
1077 vma = data->vma;
0ef5a5bd 1078
252b5132 1079 /* Since BSS follows data immediately, see if it needs alignment. */
dda2980f
AM		 1080 vma += data->size;
1081 pad = align_power (vma, bss->alignment_power) - vma;
1082 execp->a_data = data->size + pad;
1083 pos += execp->a_data;
252b5132
RH		 1084
1085 /* BSS. */
dda2980f
AM		 1086 if (!bss->user_set_vma)
1087 bss->vma = vma;
252b5132 1088 else
dda2980f 1089 vma = bss->vma;
252b5132
RH		 1090
1091 /* Fix up exec header. */
dda2980f 1092 execp->a_bss = bss->size;
bbb1afc8 1093 N_SET_MAGIC (execp, NMAGIC);
252b5132
RH		 1094}
1095
b34976b6 1096bfd_boolean
3a8c4a5b 1097NAME (aout, adjust_sizes_and_vmas) (bfd *abfd)
252b5132
RH		 1098{
1099 struct internal_exec *execp = exec_hdr (abfd);
1100
116c20d2 1101 if (! NAME (aout, make_sections) (abfd))
b34976b6 1102 return FALSE;
252b5132 1103
923f08ff 1104 if (adata (abfd).magic != undecided_magic)
b34976b6 1105 return TRUE;
252b5132 1106
dda2980f
AM		 1107 execp->a_text = align_power (obj_textsec (abfd)->size,
1108 obj_textsec (abfd)->alignment_power);
252b5132 1109
252b5132
RH		 1110 /* Rule (heuristic) for when to pad to a new page. Note that there
1111 are (at least) two ways demand-paged (ZMAGIC) files have been
1112 handled. Most Berkeley-based systems start the text segment at
1113 (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text
1114 segment right after the exec header; the latter is counted in the
1115 text segment size, and is paged in by the kernel with the rest of
0ef5a5bd 1116 the text. */
252b5132
RH		 1117
1118 /* This perhaps isn't the right way to do this, but made it simpler for me
1119 to understand enough to implement it. Better would probably be to go
1120 right from BFD flags to alignment/positioning characteristics. But the
1121 old code was sloppy enough about handling the flags, and had enough
1122 other magic, that it was a little hard for me to understand. I think
1123 I understand it better now, but I haven't time to do the cleanup this
1124 minute. */
1125
1126 if (abfd->flags & D_PAGED)
1127 /* Whether or not WP_TEXT is set -- let D_PAGED override. */
923f08ff 1128 adata (abfd).magic = z_magic;
252b5132 1129 else if (abfd->flags & WP_TEXT)
923f08ff 1130 adata (abfd).magic = n_magic;
252b5132 1131 else
923f08ff 1132 adata (abfd).magic = o_magic;
252b5132
RH		 1133
1134#ifdef BFD_AOUT_DEBUG /* requires gcc2 */
1135#if __GNUC__ >= 2
1136 fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n",
1137 ({ char *str;
923f08ff
AM		 1138 switch (adata (abfd).magic)
1139 {
1140 case n_magic: str = "NMAGIC"; break;
1141 case o_magic: str = "OMAGIC"; break;
1142 case z_magic: str = "ZMAGIC"; break;
1143 default: abort ();
1144 }
252b5132
RH		 1145 str;
1146 }),
eea6121a 1147 obj_textsec (abfd)->vma, obj_textsec (abfd)->size,
07d6d2b8 1148 obj_textsec (abfd)->alignment_power,
eea6121a 1149 obj_datasec (abfd)->vma, obj_datasec (abfd)->size,
07d6d2b8 1150 obj_datasec (abfd)->alignment_power,
eea6121a 1151 obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size,
07d6d2b8 1152 obj_bsssec (abfd)->alignment_power);
252b5132
RH		 1153#endif
1154#endif
1155
923f08ff 1156 switch (adata (abfd).magic)
252b5132
RH		 1157 {
1158 case o_magic:
1159 adjust_o_magic (abfd, execp);
1160 break;
1161 case z_magic:
1162 adjust_z_magic (abfd, execp);
1163 break;
1164 case n_magic:
1165 adjust_n_magic (abfd, execp);
1166 break;
1167 default:
1168 abort ();
1169 }
1170
1171#ifdef BFD_AOUT_DEBUG
1172 fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n",
dda2980f 1173 obj_textsec (abfd)->vma, execp->a_text,
07d6d2b8 1174 obj_textsec (abfd)->filepos,
dda2980f 1175 obj_datasec (abfd)->vma, execp->a_data,
07d6d2b8 1176 obj_datasec (abfd)->filepos,
dda2980f 1177 obj_bsssec (abfd)->vma, execp->a_bss);
252b5132
RH		 1178#endif
1179
b34976b6 1180 return TRUE;
252b5132
RH		 1181}
1182
1183/*
1184FUNCTION
1185 aout_@var{size}_new_section_hook
1186
1187SYNOPSIS
07d6d2b8 1188 bfd_boolean aout_@var{size}_new_section_hook,
252b5132 1189 (bfd *abfd,
116c20d2 1190 asection *newsect);
252b5132
RH		 1191
1192DESCRIPTION
1193 Called by the BFD in response to a @code{bfd_make_section}
1194 request.
1195*/
b34976b6 1196bfd_boolean
116c20d2 1197NAME (aout, new_section_hook) (bfd *abfd, asection *newsect)
252b5132 1198{
f7c33884 1199 /* Align to double at least. */
923f08ff 1200 newsect->alignment_power = bfd_get_arch_info (abfd)->section_align_power;
252b5132 1201
252b5132 1202 if (bfd_get_format (abfd) == bfd_object)
f7c33884
NC		 1203 {
1204 if (obj_textsec (abfd) == NULL && !strcmp (newsect->name, ".text"))
1205 {
1206 obj_textsec (abfd)= newsect;
1207 newsect->target_index = N_TEXT;
f7c33884 1208 }
f592407e 1209 else if (obj_datasec (abfd) == NULL && !strcmp (newsect->name, ".data"))
f7c33884
NC		 1210 {
1211 obj_datasec (abfd) = newsect;
1212 newsect->target_index = N_DATA;
f7c33884 1213 }
f592407e 1214 else if (obj_bsssec (abfd) == NULL && !strcmp (newsect->name, ".bss"))
f7c33884
NC		 1215 {
1216 obj_bsssec (abfd) = newsect;
1217 newsect->target_index = N_BSS;
f7c33884
NC		 1218 }
1219 }
252b5132 1220
f7c33884 1221 /* We allow more than three sections internally. */
f592407e 1222 return _bfd_generic_new_section_hook (abfd, newsect);
252b5132
RH		 1223}
1224
b34976b6 1225bfd_boolean
116c20d2
NC		 1226NAME (aout, set_section_contents) (bfd *abfd,
1227 sec_ptr section,
1228 const void * location,
1229 file_ptr offset,
1230 bfd_size_type count)
252b5132 1231{
252b5132
RH		 1232 if (! abfd->output_has_begun)
1233 {
3a8c4a5b 1234 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
b34976b6 1235 return FALSE;
252b5132
RH		 1236 }
1237
1238 if (section == obj_bsssec (abfd))
1239 {
1240 bfd_set_error (bfd_error_no_contents);
b34976b6 1241 return FALSE;
252b5132
RH		 1242 }
1243
1244 if (section != obj_textsec (abfd)
1245 && section != obj_datasec (abfd))
1246 {
e6af3a53
NC		 1247 if (aout_section_merge_with_text_p (abfd, section))
1248 section->filepos = obj_textsec (abfd)->filepos +
1249 (section->vma - obj_textsec (abfd)->vma);
1250 else
1251 {
4eca0228 1252 _bfd_error_handler
695344c0 1253 /* xgettext:c-format */
871b3ab2 1254 (_("%pB: can not represent section `%pA' in a.out object file format"),
dae82561 1255 abfd, section);
07d6d2b8
AM		 1256 bfd_set_error (bfd_error_nonrepresentable_section);
1257 return FALSE;
e6af3a53 1258 }
252b5132
RH		 1259 }
1260
1261 if (count != 0)
1262 {
1263 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
dc810e39 1264 || bfd_bwrite (location, count, abfd) != count)
b34976b6 1265 return FALSE;
252b5132
RH		 1266 }
1267
b34976b6 1268 return TRUE;
252b5132
RH		 1269}
1270\f
1271/* Read the external symbols from an a.out file. */
1272
b34976b6 1273static bfd_boolean
116c20d2 1274aout_get_external_symbols (bfd *abfd)
252b5132 1275{
116c20d2 1276 if (obj_aout_external_syms (abfd) == NULL)
252b5132
RH		 1277 {
1278 bfd_size_type count;
1279 struct external_nlist *syms;
7c53fd1c 1280 bfd_size_type amt = exec_hdr (abfd)->a_syms;
252b5132 1281
7c53fd1c 1282 count = amt / EXTERNAL_NLIST_SIZE;
6b8f0fd5
MS		 1283 if (count == 0)
1284 return TRUE; /* Nothing to do. */
252b5132
RH		 1285
1286#ifdef USE_MMAP
7c53fd1c 1287 if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd), amt,
b34976b6
AM		 1288 &obj_aout_sym_window (abfd), TRUE))
1289 return FALSE;
252b5132
RH		 1290 syms = (struct external_nlist *) obj_aout_sym_window (abfd).data;
1291#else
1292 /* We allocate using malloc to make the values easy to free
1293 later on. If we put them on the objalloc it might not be
1294 possible to free them. */
2bb3687b
AM		 1295 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0)
1296 return FALSE;
1297 syms = (struct external_nlist *) _bfd_malloc_and_read (abfd, amt, amt);
6b8f0fd5 1298 if (syms == NULL)
b34976b6 1299 return FALSE;
252b5132
RH		 1300#endif
1301
1302 obj_aout_external_syms (abfd) = syms;
1303 obj_aout_external_sym_count (abfd) = count;
1304 }
0ef5a5bd 1305
252b5132
RH		 1306 if (obj_aout_external_strings (abfd) == NULL
1307 && exec_hdr (abfd)->a_syms != 0)
1308 {
1309 unsigned char string_chars[BYTES_IN_WORD];
1310 bfd_size_type stringsize;
1311 char *strings;
dc810e39 1312 bfd_size_type amt = BYTES_IN_WORD;
252b5132
RH		 1313
1314 /* Get the size of the strings. */
1315 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
116c20d2 1316 || bfd_bread ((void *) string_chars, amt, abfd) != amt)
b34976b6 1317 return FALSE;
252b5132 1318 stringsize = GET_WORD (abfd, string_chars);
0301ce14
AM		 1319 if (stringsize == 0)
1320 stringsize = 1;
1321 else if (stringsize < BYTES_IN_WORD
1322 || (size_t) stringsize != stringsize)
1323 {
1324 bfd_set_error (bfd_error_bad_value);
1325 return FALSE;
1326 }
252b5132
RH		 1327
1328#ifdef USE_MMAP
0301ce14 1329 if (stringsize >= BYTES_IN_WORD)
252b5132 1330 {
bf82069d 1331 if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize + 1,
0301ce14
AM		 1332 &obj_aout_string_window (abfd), TRUE))
1333 return FALSE;
1334 strings = (char *) obj_aout_string_window (abfd).data;
252b5132 1335 }
0301ce14 1336 else
252b5132 1337#endif
0301ce14 1338 {
bf82069d 1339 strings = (char *) bfd_malloc (stringsize + 1);
0301ce14
AM		 1340 if (strings == NULL)
1341 return FALSE;
1342
1343 if (stringsize >= BYTES_IN_WORD)
1344 {
1345 /* Keep the string count in the buffer for convenience
1346 when indexing with e_strx. */
1347 amt = stringsize - BYTES_IN_WORD;
1348 if (bfd_bread (strings + BYTES_IN_WORD, amt, abfd) != amt)
1349 {
1350 free (strings);
1351 return FALSE;
1352 }
1353 }
1354 }
252b5132
RH		 1355 /* Ensure that a zero index yields an empty string. */
1356 strings[0] = '\0';
1357
bf82069d
NC		 1358 /* Ensure that the string buffer is NUL terminated. */
1359 strings[stringsize] = 0;
252b5132
RH		 1360
1361 obj_aout_external_strings (abfd) = strings;
1362 obj_aout_external_string_size (abfd) = stringsize;
1363 }
1364
b34976b6 1365 return TRUE;
252b5132
RH		 1366}
1367
1368/* Translate an a.out symbol into a BFD symbol. The desc, other, type
1369 and symbol->value fields of CACHE_PTR will be set from the a.out
1370 nlist structure. This function is responsible for setting
1371 symbol->flags and symbol->section, and adjusting symbol->value. */
1372
b34976b6 1373static bfd_boolean
116c20d2 1374translate_from_native_sym_flags (bfd *abfd, aout_symbol_type *cache_ptr)
252b5132
RH		 1375{
1376 flagword visible;
1377
1378 if ((cache_ptr->type & N_STAB) != 0
1379 || cache_ptr->type == N_FN)
1380 {
1381 asection *sec;
1382
1383 /* This is a debugging symbol. */
252b5132
RH		 1384 cache_ptr->symbol.flags = BSF_DEBUGGING;
1385
1386 /* Work out the symbol section. */
1387 switch (cache_ptr->type & N_TYPE)
1388 {
1389 case N_TEXT:
1390 case N_FN:
1391 sec = obj_textsec (abfd);
1392 break;
1393 case N_DATA:
1394 sec = obj_datasec (abfd);
1395 break;
1396 case N_BSS:
1397 sec = obj_bsssec (abfd);
1398 break;
1399 default:
1400 case N_ABS:
1401 sec = bfd_abs_section_ptr;
1402 break;
1403 }
1404
1405 cache_ptr->symbol.section = sec;
1406 cache_ptr->symbol.value -= sec->vma;
1407
b34976b6 1408 return TRUE;
252b5132
RH		 1409 }
1410
1411 /* Get the default visibility. This does not apply to all types, so
1412 we just hold it in a local variable to use if wanted. */
1413 if ((cache_ptr->type & N_EXT) == 0)
1414 visible = BSF_LOCAL;
1415 else
1416 visible = BSF_GLOBAL;
1417
1418 switch (cache_ptr->type)
1419 {
1420 default:
1421 case N_ABS: case N_ABS | N_EXT:
1422 cache_ptr->symbol.section = bfd_abs_section_ptr;
1423 cache_ptr->symbol.flags = visible;
1424 break;
1425
1426 case N_UNDF | N_EXT:
1427 if (cache_ptr->symbol.value != 0)
1428 {
1429 /* This is a common symbol. */
1430 cache_ptr->symbol.flags = BSF_GLOBAL;
1431 cache_ptr->symbol.section = bfd_com_section_ptr;
1432 }
1433 else
1434 {
1435 cache_ptr->symbol.flags = 0;
1436 cache_ptr->symbol.section = bfd_und_section_ptr;
1437 }
1438 break;
1439
1440 case N_TEXT: case N_TEXT | N_EXT:
1441 cache_ptr->symbol.section = obj_textsec (abfd);
1442 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1443 cache_ptr->symbol.flags = visible;
1444 break;
1445
1446 /* N_SETV symbols used to represent set vectors placed in the
1447 data section. They are no longer generated. Theoretically,
1448 it was possible to extract the entries and combine them with
1449 new ones, although I don't know if that was ever actually
1450 done. Unless that feature is restored, treat them as data
1451 symbols. */
1452 case N_SETV: case N_SETV | N_EXT:
1453 case N_DATA: case N_DATA | N_EXT:
1454 cache_ptr->symbol.section = obj_datasec (abfd);
1455 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1456 cache_ptr->symbol.flags = visible;
1457 break;
1458
1459 case N_BSS: case N_BSS | N_EXT:
1460 cache_ptr->symbol.section = obj_bsssec (abfd);
1461 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1462 cache_ptr->symbol.flags = visible;
1463 break;
1464
1465 case N_SETA: case N_SETA | N_EXT:
1466 case N_SETT: case N_SETT | N_EXT:
1467 case N_SETD: case N_SETD | N_EXT:
1468 case N_SETB: case N_SETB | N_EXT:
1469 {
1470 /* This code is no longer needed. It used to be used to make
07d6d2b8
AM		 1471 the linker handle set symbols, but they are now handled in
1472 the add_symbols routine instead. */
252b5132
RH		 1473 switch (cache_ptr->type & N_TYPE)
1474 {
1475 case N_SETA:
1476 cache_ptr->symbol.section = bfd_abs_section_ptr;
1477 break;
1478 case N_SETT:
1479 cache_ptr->symbol.section = obj_textsec (abfd);
1480 break;
1481 case N_SETD:
1482 cache_ptr->symbol.section = obj_datasec (abfd);
1483 break;
1484 case N_SETB:
1485 cache_ptr->symbol.section = obj_bsssec (abfd);
1486 break;
1487 }
1488
1489 cache_ptr->symbol.flags |= BSF_CONSTRUCTOR;
1490 }
1491 break;
1492
1493 case N_WARNING:
1494 /* This symbol is the text of a warning message. The next
1495 symbol is the symbol to associate the warning with. If a
1496 reference is made to that symbol, a warning is issued. */
1497 cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_WARNING;
1498 cache_ptr->symbol.section = bfd_abs_section_ptr;
1499 break;
1500
1501 case N_INDR: case N_INDR | N_EXT:
1502 /* An indirect symbol. This consists of two symbols in a row.
1503 The first symbol is the name of the indirection. The second
1504 symbol is the name of the target. A reference to the first
1505 symbol becomes a reference to the second. */
1506 cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_INDIRECT | visible;
1507 cache_ptr->symbol.section = bfd_ind_section_ptr;
1508 break;
1509
1510 case N_WEAKU:
1511 cache_ptr->symbol.section = bfd_und_section_ptr;
1512 cache_ptr->symbol.flags = BSF_WEAK;
1513 break;
1514
1515 case N_WEAKA:
1516 cache_ptr->symbol.section = bfd_abs_section_ptr;
1517 cache_ptr->symbol.flags = BSF_WEAK;
1518 break;
1519
1520 case N_WEAKT:
1521 cache_ptr->symbol.section = obj_textsec (abfd);
1522 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1523 cache_ptr->symbol.flags = BSF_WEAK;
1524 break;
1525
1526 case N_WEAKD:
1527 cache_ptr->symbol.section = obj_datasec (abfd);
1528 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1529 cache_ptr->symbol.flags = BSF_WEAK;
1530 break;
1531
1532 case N_WEAKB:
1533 cache_ptr->symbol.section = obj_bsssec (abfd);
1534 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1535 cache_ptr->symbol.flags = BSF_WEAK;
1536 break;
1537 }
1538
b34976b6 1539 return TRUE;
252b5132
RH		 1540}
1541
1542/* Set the fields of SYM_POINTER according to CACHE_PTR. */
1543
b34976b6 1544static bfd_boolean
116c20d2
NC		 1545translate_to_native_sym_flags (bfd *abfd,
1546 asymbol *cache_ptr,
1547 struct external_nlist *sym_pointer)
252b5132
RH		 1548{
1549 bfd_vma value = cache_ptr->value;
1550 asection *sec;
1551 bfd_vma off;
1552
1553 /* Mask out any existing type bits in case copying from one section
1554 to another. */
1555 sym_pointer->e_type[0] &= ~N_TYPE;
1556
e6f7f6d1 1557 sec = bfd_asymbol_section (cache_ptr);
252b5132
RH		 1558 off = 0;
1559
1560 if (sec == NULL)
1561 {
1562 /* This case occurs, e.g., for the *DEBUG* section of a COFF
1563 file. */
4eca0228 1564 _bfd_error_handler
695344c0 1565 /* xgettext:c-format */
871b3ab2 1566 (_("%pB: can not represent section for symbol `%s' in a.out "
4eca0228 1567 "object file format"),
dae82561 1568 abfd,
252b5132
RH		 1569 cache_ptr->name != NULL ? cache_ptr->name : _("*unknown*"));
1570 bfd_set_error (bfd_error_nonrepresentable_section);
b34976b6 1571 return FALSE;
252b5132
RH		 1572 }
1573
1574 if (sec->output_section != NULL)
1575 {
1576 off = sec->output_offset;
1577 sec = sec->output_section;
1578 }
1579
1580 if (bfd_is_abs_section (sec))
1581 sym_pointer->e_type[0] |= N_ABS;
1582 else if (sec == obj_textsec (abfd))
1583 sym_pointer->e_type[0] |= N_TEXT;
1584 else if (sec == obj_datasec (abfd))
1585 sym_pointer->e_type[0] |= N_DATA;
1586 else if (sec == obj_bsssec (abfd))
1587 sym_pointer->e_type[0] |= N_BSS;
1588 else if (bfd_is_und_section (sec))
1589 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1590 else if (bfd_is_ind_section (sec))
1591 sym_pointer->e_type[0] = N_INDR;
1592 else if (bfd_is_com_section (sec))
1593 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1594 else
1595 {
e6af3a53
NC		 1596 if (aout_section_merge_with_text_p (abfd, sec))
1597 sym_pointer->e_type[0] |= N_TEXT;
1598 else
1599 {
4eca0228 1600 _bfd_error_handler
695344c0 1601 /* xgettext:c-format */
871b3ab2 1602 (_("%pB: can not represent section `%pA' in a.out object file format"),
dae82561 1603 abfd, sec);
07d6d2b8
AM		 1604 bfd_set_error (bfd_error_nonrepresentable_section);
1605 return FALSE;
e6af3a53 1606 }
252b5132
RH		 1607 }
1608
f7c33884 1609 /* Turn the symbol from section relative to absolute again. */
252b5132
RH		 1610 value += sec->vma + off;
1611
1612 if ((cache_ptr->flags & BSF_WARNING) != 0)
1613 sym_pointer->e_type[0] = N_WARNING;
1614
1615 if ((cache_ptr->flags & BSF_DEBUGGING) != 0)
1616 sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type;
1617 else if ((cache_ptr->flags & BSF_GLOBAL) != 0)
1618 sym_pointer->e_type[0] |= N_EXT;
930d924d
L		 1619 else if ((cache_ptr->flags & BSF_LOCAL) != 0)
1620 sym_pointer->e_type[0] &= ~N_EXT;
252b5132
RH		 1621
1622 if ((cache_ptr->flags & BSF_CONSTRUCTOR) != 0)
1623 {
1624 int type = ((aout_symbol_type *) cache_ptr)->type;
f7c33884 1625
252b5132
RH		 1626 switch (type)
1627 {
1628 case N_ABS: type = N_SETA; break;
1629 case N_TEXT: type = N_SETT; break;
1630 case N_DATA: type = N_SETD; break;
1631 case N_BSS: type = N_SETB; break;
1632 }
1633 sym_pointer->e_type[0] = type;
1634 }
1635
1636 if ((cache_ptr->flags & BSF_WEAK) != 0)
1637 {
1638 int type;
1639
1640 switch (sym_pointer->e_type[0] & N_TYPE)
1641 {
1642 default:
1643 case N_ABS: type = N_WEAKA; break;
1644 case N_TEXT: type = N_WEAKT; break;
1645 case N_DATA: type = N_WEAKD; break;
1646 case N_BSS: type = N_WEAKB; break;
1647 case N_UNDF: type = N_WEAKU; break;
1648 }
1649 sym_pointer->e_type[0] = type;
1650 }
1651
923f08ff 1652 PUT_WORD (abfd, value, sym_pointer->e_value);
252b5132 1653
b34976b6 1654 return TRUE;
252b5132
RH		 1655}
1656\f
0ef5a5bd 1657/* Native-level interface to symbols. */
252b5132
RH		 1658
1659asymbol *
116c20d2 1660NAME (aout, make_empty_symbol) (bfd *abfd)
252b5132 1661{
986f0783 1662 size_t amt = sizeof (aout_symbol_type);
116c20d2 1663
d3ce72d0
NC		 1664 aout_symbol_type *new_symbol = (aout_symbol_type *) bfd_zalloc (abfd, amt);
1665 if (!new_symbol)
252b5132 1666 return NULL;
d3ce72d0 1667 new_symbol->symbol.the_bfd = abfd;
252b5132 1668
d3ce72d0 1669 return &new_symbol->symbol;
252b5132
RH		 1670}
1671
1672/* Translate a set of internal symbols into external symbols. */
1673
b34976b6 1674bfd_boolean
116c20d2
NC		 1675NAME (aout, translate_symbol_table) (bfd *abfd,
1676 aout_symbol_type *in,
1677 struct external_nlist *ext,
1678 bfd_size_type count,
1679 char *str,
1680 bfd_size_type strsize,
1681 bfd_boolean dynamic)
252b5132
RH		 1682{
1683 struct external_nlist *ext_end;
1684
1685 ext_end = ext + count;
1686 for (; ext < ext_end; ext++, in++)
1687 {
1688 bfd_vma x;
1689
1690 x = GET_WORD (abfd, ext->e_strx);
1691 in->symbol.the_bfd = abfd;
1692
1693 /* For the normal symbols, the zero index points at the number
1694 of bytes in the string table but is to be interpreted as the
1695 null string. For the dynamic symbols, the number of bytes in
1696 the string table is stored in the __DYNAMIC structure and the
1697 zero index points at an actual string. */
1698 if (x == 0 && ! dynamic)
1699 in->symbol.name = "";
1700 else if (x < strsize)
1701 in->symbol.name = str + x;
1702 else
0d329c0a
AM		 1703 {
1704 _bfd_error_handler
1705 (_("%pB: invalid string offset %" PRIu64 " >= %" PRIu64),
1706 abfd, (uint64_t) x, (uint64_t) strsize);
1707 bfd_set_error (bfd_error_bad_value);
1708 return FALSE;
1709 }
252b5132
RH		 1710
1711 in->symbol.value = GET_SWORD (abfd, ext->e_value);
dc810e39
AM		 1712 in->desc = H_GET_16 (abfd, ext->e_desc);
1713 in->other = H_GET_8 (abfd, ext->e_other);
1714 in->type = H_GET_8 (abfd, ext->e_type);
252b5132
RH		 1715 in->symbol.udata.p = NULL;
1716
1717 if (! translate_from_native_sym_flags (abfd, in))
b34976b6 1718 return FALSE;
252b5132
RH		 1719
1720 if (dynamic)
1721 in->symbol.flags |= BSF_DYNAMIC;
1722 }
1723
b34976b6 1724 return TRUE;
252b5132
RH		 1725}
1726
1727/* We read the symbols into a buffer, which is discarded when this
1728 function exits. We read the strings into a buffer large enough to
0ef5a5bd 1729 hold them all plus all the cached symbol entries. */
252b5132 1730
b34976b6 1731bfd_boolean
116c20d2 1732NAME (aout, slurp_symbol_table) (bfd *abfd)
252b5132
RH		 1733{
1734 struct external_nlist *old_external_syms;
1735 aout_symbol_type *cached;
dc810e39 1736 bfd_size_type cached_size;
252b5132 1737
f7c33884 1738 /* If there's no work to be done, don't do any. */
116c20d2 1739 if (obj_aout_symbols (abfd) != NULL)
b34976b6 1740 return TRUE;
252b5132
RH		 1741
1742 old_external_syms = obj_aout_external_syms (abfd);
1743
1744 if (! aout_get_external_symbols (abfd))
b34976b6 1745 return FALSE;
252b5132 1746
dc810e39 1747 cached_size = obj_aout_external_sym_count (abfd);
87b32780
MS		 1748 if (cached_size == 0)
1749 return TRUE; /* Nothing to do. */
1750
dc810e39 1751 cached_size *= sizeof (aout_symbol_type);
a50b1753 1752 cached = (aout_symbol_type *) bfd_zmalloc (cached_size);
87b32780 1753 if (cached == NULL)
b34976b6 1754 return FALSE;
252b5132
RH		 1755
1756 /* Convert from external symbol information to internal. */
116c20d2 1757 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 1758 (abfd, cached,
1759 obj_aout_external_syms (abfd),
1760 obj_aout_external_sym_count (abfd),
1761 obj_aout_external_strings (abfd),
1762 obj_aout_external_string_size (abfd),
b34976b6 1763 FALSE)))
252b5132
RH		 1764 {
1765 free (cached);
b34976b6 1766 return FALSE;
252b5132
RH		 1767 }
1768
ed48ec2e 1769 abfd->symcount = obj_aout_external_sym_count (abfd);
252b5132
RH		 1770
1771 obj_aout_symbols (abfd) = cached;
1772
1773 /* It is very likely that anybody who calls this function will not
1774 want the external symbol information, so if it was allocated
1775 because of our call to aout_get_external_symbols, we free it up
1776 right away to save space. */
116c20d2
NC		 1777 if (old_external_syms == NULL
1778 && obj_aout_external_syms (abfd) != NULL)
252b5132
RH		 1779 {
1780#ifdef USE_MMAP
1781 bfd_free_window (&obj_aout_sym_window (abfd));
1782#else
1783 free (obj_aout_external_syms (abfd));
1784#endif
1785 obj_aout_external_syms (abfd) = NULL;
1786 }
1787
b34976b6 1788 return TRUE;
252b5132
RH		 1789}
1790\f
1791/* We use a hash table when writing out symbols so that we only write
1792 out a particular string once. This helps particularly when the
1793 linker writes out stabs debugging entries, because each different
1794 contributing object file tends to have many duplicate stabs
1795 strings.
1796
1797 This hash table code breaks dbx on SunOS 4.1.3, so we don't do it
1798 if BFD_TRADITIONAL_FORMAT is set. */
1799
252b5132
RH		 1800/* Get the index of a string in a strtab, adding it if it is not
1801 already present. */
1802
116c20d2
NC		 1803static inline bfd_size_type
1804add_to_stringtab (bfd *abfd,
1805 struct bfd_strtab_hash *tab,
1806 const char *str,
1807 bfd_boolean copy)
252b5132 1808{
b34976b6 1809 bfd_boolean hash;
91d6fa6a 1810 bfd_size_type str_index;
252b5132
RH		 1811
1812 /* An index of 0 always means the empty string. */
1813 if (str == 0 || *str == '\0')
1814 return 0;
1815
1816 /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx
1817 doesn't understand a hashed string table. */
b34976b6 1818 hash = TRUE;
252b5132 1819 if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
b34976b6 1820 hash = FALSE;
252b5132 1821
91d6fa6a 1822 str_index = _bfd_stringtab_add (tab, str, hash, copy);
252b5132 1823
91d6fa6a 1824 if (str_index != (bfd_size_type) -1)
116c20d2
NC		 1825 /* Add BYTES_IN_WORD to the return value to account for the
1826 space taken up by the string table size. */
91d6fa6a 1827 str_index += BYTES_IN_WORD;
252b5132 1828
91d6fa6a 1829 return str_index;
252b5132
RH		 1830}
1831
1832/* Write out a strtab. ABFD is already at the right location in the
1833 file. */
1834
b34976b6 1835static bfd_boolean
116c20d2 1836emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab)
252b5132
RH		 1837{
1838 bfd_byte buffer[BYTES_IN_WORD];
986f0783 1839 size_t amt = BYTES_IN_WORD;
252b5132
RH		 1840
1841 /* The string table starts with the size. */
1842 PUT_WORD (abfd, _bfd_stringtab_size (tab) + BYTES_IN_WORD, buffer);
116c20d2 1843 if (bfd_bwrite ((void *) buffer, amt, abfd) != amt)
b34976b6 1844 return FALSE;
252b5132
RH		 1845
1846 return _bfd_stringtab_emit (abfd, tab);
1847}
1848\f
b34976b6 1849bfd_boolean
116c20d2 1850NAME (aout, write_syms) (bfd *abfd)
252b5132
RH		 1851{
1852 unsigned int count ;
1853 asymbol **generic = bfd_get_outsymbols (abfd);
1854 struct bfd_strtab_hash *strtab;
1855
1856 strtab = _bfd_stringtab_init ();
1857 if (strtab == NULL)
b34976b6 1858 return FALSE;
252b5132
RH		 1859
1860 for (count = 0; count < bfd_get_symcount (abfd); count++)
1861 {
1862 asymbol *g = generic[count];
1863 bfd_size_type indx;
1864 struct external_nlist nsp;
986f0783 1865 size_t amt;
252b5132 1866
b34976b6 1867 indx = add_to_stringtab (abfd, strtab, g->name, FALSE);
252b5132
RH		 1868 if (indx == (bfd_size_type) -1)
1869 goto error_return;
1870 PUT_WORD (abfd, indx, (bfd_byte *) nsp.e_strx);
1871
923f08ff 1872 if (bfd_asymbol_flavour (g) == abfd->xvec->flavour)
252b5132 1873 {
923f08ff
AM		 1874 H_PUT_16 (abfd, aout_symbol (g)->desc, nsp.e_desc);
1875 H_PUT_8 (abfd, aout_symbol (g)->other, nsp.e_other);
1876 H_PUT_8 (abfd, aout_symbol (g)->type, nsp.e_type);
252b5132
RH		 1877 }
1878 else
1879 {
dc810e39
AM		 1880 H_PUT_16 (abfd, 0, nsp.e_desc);
1881 H_PUT_8 (abfd, 0, nsp.e_other);
1882 H_PUT_8 (abfd, 0, nsp.e_type);
252b5132
RH		 1883 }
1884
1885 if (! translate_to_native_sym_flags (abfd, g, &nsp))
1886 goto error_return;
1887
dc810e39 1888 amt = EXTERNAL_NLIST_SIZE;
116c20d2 1889 if (bfd_bwrite ((void *) &nsp, amt, abfd) != amt)
252b5132
RH		 1890 goto error_return;
1891
1892 /* NB: `KEEPIT' currently overlays `udata.p', so set this only
1893 here, at the end. */
1894 g->KEEPIT = count;
1895 }
1896
1897 if (! emit_stringtab (abfd, strtab))
1898 goto error_return;
1899
1900 _bfd_stringtab_free (strtab);
1901
b34976b6 1902 return TRUE;
252b5132 1903
dc1e8a47 1904 error_return:
252b5132 1905 _bfd_stringtab_free (strtab);
b34976b6 1906 return FALSE;
252b5132 1907}
252b5132
RH		 1908\f
1909long
116c20d2 1910NAME (aout, canonicalize_symtab) (bfd *abfd, asymbol **location)
252b5132 1911{
116c20d2
NC		 1912 unsigned int counter = 0;
1913 aout_symbol_type *symbase;
252b5132 1914
116c20d2
NC		 1915 if (!NAME (aout, slurp_symbol_table) (abfd))
1916 return -1;
252b5132 1917
116c20d2
NC		 1918 for (symbase = obj_aout_symbols (abfd);
1919 counter++ < bfd_get_symcount (abfd);
1920 )
1921 *(location++) = (asymbol *) (symbase++);
1922 *location++ =0;
1923 return bfd_get_symcount (abfd);
252b5132 1924}
252b5132 1925\f
f7c33884 1926/* Standard reloc stuff. */
0ef5a5bd 1927/* Output standard relocation information to a file in target byte order. */
252b5132 1928
116c20d2
NC		 1929extern void NAME (aout, swap_std_reloc_out)
1930 (bfd *, arelent *, struct reloc_std_external *);
252b5132
RH		 1931
1932void
116c20d2
NC		 1933NAME (aout, swap_std_reloc_out) (bfd *abfd,
1934 arelent *g,
1935 struct reloc_std_external *natptr)
252b5132
RH		 1936{
1937 int r_index;
1938 asymbol *sym = *(g->sym_ptr_ptr);
1939 int r_extern;
1940 unsigned int r_length;
1941 int r_pcrel;
1942 int r_baserel, r_jmptable, r_relative;
1943 asection *output_section = sym->section->output_section;
1944
923f08ff 1945 PUT_WORD (abfd, g->address, natptr->r_address);
252b5132 1946
e2996cc3 1947 BFD_ASSERT (g->howto != NULL);
f7c33884
NC		 1948 r_length = g->howto->size ; /* Size as a power of two. */
1949 r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */
252b5132
RH		 1950 /* XXX This relies on relocs coming from a.out files. */
1951 r_baserel = (g->howto->type & 8) != 0;
1952 r_jmptable = (g->howto->type & 16) != 0;
1953 r_relative = (g->howto->type & 32) != 0;
1954
f7c33884 1955 /* Name was clobbered by aout_write_syms to be symbol index. */
252b5132
RH		 1956
1957 /* If this relocation is relative to a symbol then set the
1958 r_index to the symbols index, and the r_extern bit.
1959
1960 Absolute symbols can come in in two ways, either as an offset
1961 from the abs section, or as a symbol which has an abs value.
f7c33884 1962 check for that here. */
252b5132 1963
252b5132
RH		 1964 if (bfd_is_com_section (output_section)
1965 || bfd_is_abs_section (output_section)
22184a77
NC		 1966 || bfd_is_und_section (output_section)
1967 /* PR gas/3041 a.out relocs against weak symbols
1968 must be treated as if they were against externs. */
1969 || (sym->flags & BSF_WEAK))
252b5132
RH		 1970 {
1971 if (bfd_abs_section_ptr->symbol == sym)
f7c33884
NC		 1972 {
1973 /* Whoops, looked like an abs symbol, but is
1974 really an offset from the abs section. */
1975 r_index = N_ABS;
1976 r_extern = 0;
1977 }
252b5132 1978 else
f7c33884
NC		 1979 {
1980 /* Fill in symbol. */
1981 r_extern = 1;
1982 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
1983 }
252b5132
RH		 1984 }
1985 else
1986 {
f7c33884 1987 /* Just an ordinary section. */
252b5132
RH		 1988 r_extern = 0;
1989 r_index = output_section->target_index;
1990 }
1991
f7c33884 1992 /* Now the fun stuff. */
923f08ff
AM		 1993 if (bfd_header_big_endian (abfd))
1994 {
252b5132
RH		 1995 natptr->r_index[0] = r_index >> 16;
1996 natptr->r_index[1] = r_index >> 8;
1997 natptr->r_index[2] = r_index;
923f08ff
AM		 1998 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
1999 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
2000 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
2001 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
2002 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
2003 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
2004 }
2005 else
2006 {
2007 natptr->r_index[2] = r_index >> 16;
2008 natptr->r_index[1] = r_index >> 8;
2009 natptr->r_index[0] = r_index;
2010 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
2011 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
2012 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
2013 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
2014 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
2015 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
2016 }
252b5132
RH		 2017}
2018
f7c33884 2019/* Extended stuff. */
0ef5a5bd 2020/* Output extended relocation information to a file in target byte order. */
252b5132 2021
116c20d2
NC		 2022extern void NAME (aout, swap_ext_reloc_out)
2023 (bfd *, arelent *, struct reloc_ext_external *);
252b5132
RH		 2024
2025void
116c20d2
NC		 2026NAME (aout, swap_ext_reloc_out) (bfd *abfd,
2027 arelent *g,
2028 struct reloc_ext_external *natptr)
252b5132
RH		 2029{
2030 int r_index;
2031 int r_extern;
2032 unsigned int r_type;
dc810e39 2033 bfd_vma r_addend;
252b5132
RH		 2034 asymbol *sym = *(g->sym_ptr_ptr);
2035 asection *output_section = sym->section->output_section;
2036
2037 PUT_WORD (abfd, g->address, natptr->r_address);
2038
2039 r_type = (unsigned int) g->howto->type;
2040
2041 r_addend = g->addend;
2042 if ((sym->flags & BSF_SECTION_SYM) != 0)
2043 r_addend += (*(g->sym_ptr_ptr))->section->output_section->vma;
2044
2045 /* If this relocation is relative to a symbol then set the
2046 r_index to the symbols index, and the r_extern bit.
2047
2048 Absolute symbols can come in in two ways, either as an offset
2049 from the abs section, or as a symbol which has an abs value.
2050 check for that here. */
e6f7f6d1 2051 if (bfd_is_abs_section (bfd_asymbol_section (sym)))
252b5132
RH		 2052 {
2053 r_extern = 0;
2054 r_index = N_ABS;
2055 }
2056 else if ((sym->flags & BSF_SECTION_SYM) == 0)
2057 {
e6f7f6d1 2058 if (bfd_is_und_section (bfd_asymbol_section (sym))
252b5132
RH		 2059 || (sym->flags & BSF_GLOBAL) != 0)
2060 r_extern = 1;
2061 else
2062 r_extern = 0;
2063 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
2064 }
2065 else
2066 {
f7c33884 2067 /* Just an ordinary section. */
252b5132
RH		 2068 r_extern = 0;
2069 r_index = output_section->target_index;
2070 }
2071
f7c33884 2072 /* Now the fun stuff. */
923f08ff
AM		 2073 if (bfd_header_big_endian (abfd))
2074 {
2075 natptr->r_index[0] = r_index >> 16;
2076 natptr->r_index[1] = r_index >> 8;
2077 natptr->r_index[2] = r_index;
2078 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
2079 | (r_type << RELOC_EXT_BITS_TYPE_SH_BIG));
2080 }
2081 else
2082 {
2083 natptr->r_index[2] = r_index >> 16;
2084 natptr->r_index[1] = r_index >> 8;
2085 natptr->r_index[0] = r_index;
2086 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
2087 | (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE));
2088 }
252b5132
RH		 2089
2090 PUT_WORD (abfd, r_addend, natptr->r_addend);
2091}
2092
2093/* BFD deals internally with all things based from the section they're
2094 in. so, something in 10 bytes into a text section with a base of
2095 50 would have a symbol (.text+10) and know .text vma was 50.
2096
2097 Aout keeps all it's symbols based from zero, so the symbol would
2098 contain 60. This macro subs the base of each section from the value
923f08ff
AM		 2099 to give the true offset from the section. */
2100
2101#define MOVE_ADDRESS(ad) \
2102 if (r_extern) \
2103 { \
2104 /* Undefined symbol. */ \
2105 cache_ptr->sym_ptr_ptr = symbols + r_index; \
252b5132 2106 cache_ptr->addend = ad; \
252b5132 2107 } \
923f08ff
AM		 2108 else \
2109 { \
2110 /* Defined, section relative. Replace symbol with pointer to \
2111 symbol which points to section. */ \
2112 switch (r_index) \
2113 { \
2114 case N_TEXT: \
2115 case N_TEXT | N_EXT: \
2116 cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \
2117 cache_ptr->addend = ad - su->textsec->vma; \
2118 break; \
2119 case N_DATA: \
2120 case N_DATA | N_EXT: \
2121 cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \
2122 cache_ptr->addend = ad - su->datasec->vma; \
2123 break; \
2124 case N_BSS: \
2125 case N_BSS | N_EXT: \
2126 cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \
2127 cache_ptr->addend = ad - su->bsssec->vma; \
2128 break; \
2129 default: \
2130 case N_ABS: \
2131 case N_ABS | N_EXT: \
2132 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
2133 cache_ptr->addend = ad; \
2134 break; \
2135 } \
2136 }
252b5132
RH		 2137
2138void
116c20d2
NC		 2139NAME (aout, swap_ext_reloc_in) (bfd *abfd,
2140 struct reloc_ext_external *bytes,
2141 arelent *cache_ptr,
2142 asymbol **symbols,
2143 bfd_size_type symcount)
252b5132
RH		 2144{
2145 unsigned int r_index;
2146 int r_extern;
2147 unsigned int r_type;
2148 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2149
2150 cache_ptr->address = (GET_SWORD (abfd, bytes->r_address));
2151
f7c33884 2152 /* Now the fun stuff. */
923f08ff
AM		 2153 if (bfd_header_big_endian (abfd))
2154 {
d45913a0
DA		 2155 r_index = (((unsigned int) bytes->r_index[0] << 16)
2156 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2157 | bytes->r_index[2]);
2158 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
2159 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
2160 >> RELOC_EXT_BITS_TYPE_SH_BIG);
2161 }
2162 else
2163 {
d45913a0
DA		 2164 r_index = (((unsigned int) bytes->r_index[2] << 16)
2165 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2166 | bytes->r_index[0]);
2167 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
2168 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
2169 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
2170 }
252b5132 2171
ad756e3f
AM		 2172 if (r_type < TABLE_SIZE (howto_table_ext))
2173 cache_ptr->howto = howto_table_ext + r_type;
2174 else
2175 cache_ptr->howto = NULL;
252b5132
RH		 2176
2177 /* Base relative relocs are always against the symbol table,
2178 regardless of the setting of r_extern. r_extern just reflects
2179 whether the symbol the reloc is against is local or global. */
d45913a0
DA		 2180 if (r_type == (unsigned int) RELOC_BASE10
2181 || r_type == (unsigned int) RELOC_BASE13
2182 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 2183 r_extern = 1;
2184
2185 if (r_extern && r_index > symcount)
2186 {
2187 /* We could arrange to return an error, but it might be useful
07d6d2b8 2188 to see the file even if it is bad. */
252b5132
RH		 2189 r_extern = 0;
2190 r_index = N_ABS;
2191 }
2192
923f08ff 2193 MOVE_ADDRESS (GET_SWORD (abfd, bytes->r_addend));
252b5132
RH		 2194}
2195
2196void
116c20d2
NC		 2197NAME (aout, swap_std_reloc_in) (bfd *abfd,
2198 struct reloc_std_external *bytes,
2199 arelent *cache_ptr,
2200 asymbol **symbols,
2201 bfd_size_type symcount)
252b5132
RH		 2202{
2203 unsigned int r_index;
2204 int r_extern;
2205 unsigned int r_length;
2206 int r_pcrel;
2207 int r_baserel, r_jmptable, r_relative;
2208 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2209 unsigned int howto_idx;
2210
dc810e39 2211 cache_ptr->address = H_GET_32 (abfd, bytes->r_address);
252b5132 2212
f7c33884 2213 /* Now the fun stuff. */
923f08ff
AM		 2214 if (bfd_header_big_endian (abfd))
2215 {
d45913a0
DA		 2216 r_index = (((unsigned int) bytes->r_index[0] << 16)
2217 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2218 | bytes->r_index[2]);
2219 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
2220 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
2221 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
2222 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
2223 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
2224 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
2225 >> RELOC_STD_BITS_LENGTH_SH_BIG);
2226 }
2227 else
2228 {
d45913a0
DA		 2229 r_index = (((unsigned int) bytes->r_index[2] << 16)
2230 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2231 | bytes->r_index[0]);
2232 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
2233 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
2234 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE));
2235 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE));
2236 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_LITTLE));
2237 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
2238 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
2239 }
252b5132 2240
923f08ff
AM		 2241 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
2242 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 2243 if (howto_idx < TABLE_SIZE (howto_table_std))
2244 {
2245 cache_ptr->howto = howto_table_std + howto_idx;
2246 if (cache_ptr->howto->type == (unsigned int) -1)
2247 cache_ptr->howto = NULL;
2248 }
2249 else
2250 cache_ptr->howto = NULL;
252b5132
RH		 2251
2252 /* Base relative relocs are always against the symbol table,
2253 regardless of the setting of r_extern. r_extern just reflects
2254 whether the symbol the reloc is against is local or global. */
2255 if (r_baserel)
2256 r_extern = 1;
2257
116acb2c 2258 if (r_extern && r_index >= symcount)
252b5132
RH		 2259 {
2260 /* We could arrange to return an error, but it might be useful
116acb2c
AM		 2261 to see the file even if it is bad. FIXME: Of course this
2262 means that objdump -r *doesn't* see the actual reloc, and
2263 objcopy silently writes a different reloc. */
252b5132
RH		 2264 r_extern = 0;
2265 r_index = N_ABS;
2266 }
2267
923f08ff 2268 MOVE_ADDRESS (0);
252b5132
RH		 2269}
2270
2271/* Read and swap the relocs for a section. */
2272
b34976b6 2273bfd_boolean
116c20d2 2274NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols)
252b5132 2275{
dc810e39 2276 bfd_size_type count;
252b5132 2277 bfd_size_type reloc_size;
116c20d2 2278 void * relocs;
252b5132
RH		 2279 arelent *reloc_cache;
2280 size_t each_size;
2281 unsigned int counter = 0;
2282 arelent *cache_ptr;
dc810e39 2283 bfd_size_type amt;
252b5132
RH		 2284
2285 if (asect->relocation)
b34976b6 2286 return TRUE;
252b5132
RH		 2287
2288 if (asect->flags & SEC_CONSTRUCTOR)
b34976b6 2289 return TRUE;
252b5132
RH		 2290
2291 if (asect == obj_datasec (abfd))
923f08ff 2292 reloc_size = exec_hdr (abfd)->a_drsize;
252b5132 2293 else if (asect == obj_textsec (abfd))
923f08ff 2294 reloc_size = exec_hdr (abfd)->a_trsize;
252b5132
RH		 2295 else if (asect == obj_bsssec (abfd))
2296 reloc_size = 0;
2297 else
2298 {
2299 bfd_set_error (bfd_error_invalid_operation);
b34976b6 2300 return FALSE;
252b5132
RH		 2301 }
2302
252b5132 2303 each_size = obj_reloc_entry_size (abfd);
252b5132 2304 count = reloc_size / each_size;
078c4bfc
MS		 2305 if (count == 0)
2306 return TRUE; /* Nothing to be done. */
252b5132 2307
806470a2 2308 if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
b34976b6 2309 return FALSE;
2bb3687b 2310 relocs = _bfd_malloc_and_read (abfd, reloc_size, reloc_size);
078c4bfc 2311 if (relocs == NULL)
806470a2
AM		 2312 return FALSE;
2313
806470a2
AM		 2314 amt = count * sizeof (arelent);
2315 reloc_cache = (arelent *) bfd_zmalloc (amt);
2316 if (reloc_cache == NULL)
252b5132
RH		 2317 {
2318 free (relocs);
b34976b6 2319 return FALSE;
252b5132
RH		 2320 }
2321
2322 cache_ptr = reloc_cache;
2323 if (each_size == RELOC_EXT_SIZE)
2324 {
dc810e39 2325 struct reloc_ext_external *rptr = (struct reloc_ext_external *) relocs;
252b5132
RH		 2326
2327 for (; counter < count; counter++, rptr++, cache_ptr++)
1642229e 2328 MY_swap_ext_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2329 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2330 }
2331 else
2332 {
dc810e39 2333 struct reloc_std_external *rptr = (struct reloc_std_external *) relocs;
252b5132
RH		 2334
2335 for (; counter < count; counter++, rptr++, cache_ptr++)
2336 MY_swap_std_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2337 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2338 }
2339
2340 free (relocs);
2341
2342 asect->relocation = reloc_cache;
2343 asect->reloc_count = cache_ptr - reloc_cache;
2344
b34976b6 2345 return TRUE;
252b5132
RH		 2346}
2347
2348/* Write out a relocation section into an object file. */
2349
b34976b6 2350bfd_boolean
116c20d2 2351NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section)
252b5132
RH		 2352{
2353 arelent **generic;
2354 unsigned char *native, *natptr;
2355 size_t each_size;
2356
2357 unsigned int count = section->reloc_count;
dc810e39 2358 bfd_size_type natsize;
252b5132
RH		 2359
2360 if (count == 0 || section->orelocation == NULL)
b34976b6 2361 return TRUE;
252b5132
RH		 2362
2363 each_size = obj_reloc_entry_size (abfd);
dc810e39 2364 natsize = (bfd_size_type) each_size * count;
a50b1753 2365 native = (unsigned char *) bfd_zalloc (abfd, natsize);
252b5132 2366 if (!native)
b34976b6 2367 return FALSE;
252b5132
RH		 2368
2369 generic = section->orelocation;
2370
2371 if (each_size == RELOC_EXT_SIZE)
2372 {
2373 for (natptr = native;
2374 count != 0;
2375 --count, natptr += each_size, ++generic)
e2996cc3 2376 {
92744f05
NC		 2377 /* PR 20921: If the howto field has not been initialised then skip
2378 this reloc.
2379 PR 20929: Similarly for the symbol field. */
2380 if ((*generic)->howto == NULL
2381 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2382 {
2383 bfd_set_error (bfd_error_invalid_operation);
dc1e8a47
AM		 2384 _bfd_error_handler (_("%pB: attempt to write out "
2385 "unknown reloc type"), abfd);
e2996cc3
NC		 2386 return FALSE;
2387 }
2388 MY_swap_ext_reloc_out (abfd, *generic,
2389 (struct reloc_ext_external *) natptr);
2390 }
252b5132
RH		 2391 }
2392 else
2393 {
2394 for (natptr = native;
2395 count != 0;
2396 --count, natptr += each_size, ++generic)
e2996cc3 2397 {
92744f05
NC		 2398 if ((*generic)->howto == NULL
2399 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2400 {
2401 bfd_set_error (bfd_error_invalid_operation);
dc1e8a47
AM		 2402 _bfd_error_handler (_("%pB: attempt to write out "
2403 "unknown reloc type"), abfd);
e2996cc3
NC		 2404 return FALSE;
2405 }
2406 MY_swap_std_reloc_out (abfd, *generic,
2407 (struct reloc_std_external *) natptr);
2408 }
252b5132
RH		 2409 }
2410
116c20d2 2411 if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
dc810e39 2412 {
923f08ff 2413 bfd_release (abfd, native);
b34976b6 2414 return FALSE;
dc810e39 2415 }
252b5132
RH		 2416 bfd_release (abfd, native);
2417
b34976b6 2418 return TRUE;
252b5132
RH		 2419}
2420
f7c33884
NC		 2421/* This is stupid. This function should be a boolean predicate. */
2422
252b5132 2423long
116c20d2
NC		 2424NAME (aout, canonicalize_reloc) (bfd *abfd,
2425 sec_ptr section,
2426 arelent **relptr,
2427 asymbol **symbols)
252b5132
RH		 2428{
2429 arelent *tblptr = section->relocation;
2430 unsigned int count;
2431
2432 if (section == obj_bsssec (abfd))
2433 {
2434 *relptr = NULL;
2435 return 0;
2436 }
2437
116c20d2 2438 if (!(tblptr || NAME (aout, slurp_reloc_table) (abfd, section, symbols)))
252b5132
RH		 2439 return -1;
2440
923f08ff
AM		 2441 if (section->flags & SEC_CONSTRUCTOR)
2442 {
2443 arelent_chain *chain = section->constructor_chain;
2444 for (count = 0; count < section->reloc_count; count ++)
2445 {
2446 *relptr ++ = &chain->relent;
2447 chain = chain->next;
2448 }
252b5132 2449 }
923f08ff
AM		 2450 else
2451 {
2452 tblptr = section->relocation;
252b5132 2453
923f08ff
AM		 2454 for (count = 0; count++ < section->reloc_count; )
2455 {
2456 *relptr++ = tblptr++;
2457 }
2458 }
252b5132
RH		 2459 *relptr = 0;
2460
2461 return section->reloc_count;
2462}
2463
2464long
116c20d2 2465NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect)
252b5132 2466{
3a551c7a
AM		 2467 bfd_size_type count;
2468
923f08ff
AM		 2469 if (bfd_get_format (abfd) != bfd_object)
2470 {
2471 bfd_set_error (bfd_error_invalid_operation);
2472 return -1;
2473 }
f7c33884 2474
923f08ff 2475 if (asect->flags & SEC_CONSTRUCTOR)
3a551c7a
AM		 2476 count = asect->reloc_count;
2477 else if (asect == obj_datasec (abfd))
2478 count = exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
2479 else if (asect == obj_textsec (abfd))
2480 count = exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
2481 else if (asect == obj_bsssec (abfd))
2482 count = 0;
2483 else
2484 {
2485 bfd_set_error (bfd_error_invalid_operation);
2486 return -1;
2487 }
252b5132 2488
3a551c7a
AM		 2489 if (count >= LONG_MAX / sizeof (arelent *))
2490 {
2491 bfd_set_error (bfd_error_file_too_big);
2492 return -1;
2493 }
2494 return (count + 1) * sizeof (arelent *);
252b5132 2495}
252b5132
RH		 2496\f
2497long
116c20d2 2498NAME (aout, get_symtab_upper_bound) (bfd *abfd)
252b5132 2499{
116c20d2 2500 if (!NAME (aout, slurp_symbol_table) (abfd))
252b5132
RH		 2501 return -1;
2502
2503 return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
2504}
2505
1725a96e 2506alent *
116c20d2
NC		 2507NAME (aout, get_lineno) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2508 asymbol *ignore_symbol ATTRIBUTE_UNUSED)
252b5132 2509{
116c20d2 2510 return NULL;
252b5132
RH		 2511}
2512
252b5132 2513void
116c20d2
NC		 2514NAME (aout, get_symbol_info) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2515 asymbol *symbol,
2516 symbol_info *ret)
252b5132
RH		 2517{
2518 bfd_symbol_info (symbol, ret);
2519
2520 if (ret->type == '?')
2521 {
923f08ff 2522 int type_code = aout_symbol (symbol)->type & 0xff;
252b5132
RH		 2523 const char *stab_name = bfd_get_stab_name (type_code);
2524 static char buf[10];
2525
2526 if (stab_name == NULL)
2527 {
e60b52c6 2528 sprintf (buf, "(%d)", type_code);
252b5132
RH		 2529 stab_name = buf;
2530 }
2531 ret->type = '-';
2532 ret->stab_type = type_code;
923f08ff
AM		 2533 ret->stab_other = (unsigned) (aout_symbol (symbol)->other & 0xff);
2534 ret->stab_desc = (unsigned) (aout_symbol (symbol)->desc & 0xffff);
252b5132
RH		 2535 ret->stab_name = stab_name;
2536 }
2537}
2538
252b5132 2539void
116c20d2
NC		 2540NAME (aout, print_symbol) (bfd *abfd,
2541 void * afile,
2542 asymbol *symbol,
2543 bfd_print_symbol_type how)
252b5132
RH		 2544{
2545 FILE *file = (FILE *)afile;
2546
923f08ff 2547 switch (how)
252b5132 2548 {
923f08ff
AM		 2549 case bfd_print_symbol_name:
2550 if (symbol->name)
2551 fprintf (file,"%s", symbol->name);
2552 break;
2553 case bfd_print_symbol_more:
2554 fprintf (file,"%4x %2x %2x",
2555 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2556 (unsigned) (aout_symbol (symbol)->other & 0xff),
2557 (unsigned) (aout_symbol (symbol)->type));
2558 break;
2559 case bfd_print_symbol_all:
2560 {
2561 const char *section_name = symbol->section->name;
252b5132 2562
116c20d2 2563 bfd_print_symbol_vandf (abfd, (void *)file, symbol);
252b5132 2564
923f08ff
AM		 2565 fprintf (file," %-5s %04x %02x %02x",
2566 section_name,
2567 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2568 (unsigned) (aout_symbol (symbol)->other & 0xff),
2569 (unsigned) (aout_symbol (symbol)->type & 0xff));
2570 if (symbol->name)
2571 fprintf (file," %s", symbol->name);
2572 }
2573 break;
252b5132 2574 }
252b5132
RH		 2575}
2576
2577/* If we don't have to allocate more than 1MB to hold the generic
2578 symbols, we use the generic minisymbol methord: it's faster, since
2579 it only translates the symbols once, not multiple times. */
2580#define MINISYM_THRESHOLD (1000000 / sizeof (asymbol))
2581
2582/* Read minisymbols. For minisymbols, we use the unmodified a.out
2583 symbols. The minisymbol_to_symbol function translates these into
2584 BFD asymbol structures. */
2585
2586long
116c20d2
NC		 2587NAME (aout, read_minisymbols) (bfd *abfd,
2588 bfd_boolean dynamic,
2589 void * *minisymsp,
2590 unsigned int *sizep)
252b5132
RH		 2591{
2592 if (dynamic)
116c20d2
NC		 2593 /* We could handle the dynamic symbols here as well, but it's
2594 easier to hand them off. */
2595 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
252b5132
RH		 2596
2597 if (! aout_get_external_symbols (abfd))
2598 return -1;
2599
2600 if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2601 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
2602
116c20d2 2603 *minisymsp = (void *) obj_aout_external_syms (abfd);
252b5132
RH		 2604
2605 /* By passing the external symbols back from this routine, we are
2606 giving up control over the memory block. Clear
2607 obj_aout_external_syms, so that we do not try to free it
2608 ourselves. */
2609 obj_aout_external_syms (abfd) = NULL;
2610
2611 *sizep = EXTERNAL_NLIST_SIZE;
2612 return obj_aout_external_sym_count (abfd);
2613}
2614
2615/* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
2616 unmodified a.out symbol. The SYM argument is a structure returned
2617 by bfd_make_empty_symbol, which we fill in here. */
2618
2619asymbol *
116c20d2
NC		 2620NAME (aout, minisymbol_to_symbol) (bfd *abfd,
2621 bfd_boolean dynamic,
2622 const void * minisym,
2623 asymbol *sym)
252b5132
RH		 2624{
2625 if (dynamic
2626 || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2627 return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
2628
2629 memset (sym, 0, sizeof (aout_symbol_type));
2630
2631 /* We call translate_symbol_table to translate a single symbol. */
116c20d2 2632 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 2633 (abfd,
2634 (aout_symbol_type *) sym,
2635 (struct external_nlist *) minisym,
2636 (bfd_size_type) 1,
2637 obj_aout_external_strings (abfd),
2638 obj_aout_external_string_size (abfd),
b34976b6 2639 FALSE)))
252b5132
RH		 2640 return NULL;
2641
2642 return sym;
2643}
2644
f7c33884
NC		 2645/* Provided a BFD, a section and an offset into the section, calculate
2646 and return the name of the source file and the line nearest to the
2647 wanted location. */
252b5132 2648
b34976b6 2649bfd_boolean
116c20d2 2650NAME (aout, find_nearest_line) (bfd *abfd,
116c20d2 2651 asymbol **symbols,
fb167eb2 2652 asection *section,
116c20d2
NC		 2653 bfd_vma offset,
2654 const char **filename_ptr,
2655 const char **functionname_ptr,
fb167eb2
AM		 2656 unsigned int *line_ptr,
2657 unsigned int *disriminator_ptr)
252b5132 2658{
f7c33884 2659 /* Run down the file looking for the filename, function and linenumber. */
252b5132 2660 asymbol **p;
dc810e39
AM		 2661 const char *directory_name = NULL;
2662 const char *main_file_name = NULL;
2663 const char *current_file_name = NULL;
116c20d2 2664 const char *line_file_name = NULL; /* Value of current_file_name at line number. */
dc810e39 2665 const char *line_directory_name = NULL; /* Value of directory_name at line number. */
252b5132
RH		 2666 bfd_vma low_line_vma = 0;
2667 bfd_vma low_func_vma = 0;
2668 asymbol *func = 0;
dc810e39 2669 bfd_size_type filelen, funclen;
252b5132
RH		 2670 char *buf;
2671
2672 *filename_ptr = abfd->filename;
50455f1a 2673 *functionname_ptr = NULL;
252b5132 2674 *line_ptr = 0;
fb167eb2
AM		 2675 if (disriminator_ptr)
2676 *disriminator_ptr = 0;
f7c33884 2677
116c20d2 2678 if (symbols != NULL)
923f08ff
AM		 2679 {
2680 for (p = symbols; *p; p++)
2681 {
2682 aout_symbol_type *q = (aout_symbol_type *) (*p);
2683 next:
2684 switch (q->type)
2685 {
2686 case N_TEXT:
2687 /* If this looks like a file name symbol, and it comes after
2688 the line number we have found so far, but before the
2689 offset, then we have probably not found the right line
2690 number. */
2691 if (q->symbol.value <= offset
2692 && ((q->symbol.value > low_line_vma
2693 && (line_file_name != NULL
2694 || *line_ptr != 0))
2695 || (q->symbol.value > low_func_vma
2696 && func != NULL)))
2697 {
2698 const char *symname;
252b5132 2699
923f08ff 2700 symname = q->symbol.name;
808346fc
NC		 2701
2702 if (symname != NULL
2703 && strlen (symname) > 2
2704 && strcmp (symname + strlen (symname) - 2, ".o") == 0)
923f08ff
AM		 2705 {
2706 if (q->symbol.value > low_line_vma)
2707 {
2708 *line_ptr = 0;
2709 line_file_name = NULL;
2710 }
2711 if (q->symbol.value > low_func_vma)
2712 func = NULL;
2713 }
2714 }
2715 break;
252b5132 2716
923f08ff
AM		 2717 case N_SO:
2718 /* If this symbol is less than the offset, but greater than
2719 the line number we have found so far, then we have not
2720 found the right line number. */
2721 if (q->symbol.value <= offset)
2722 {
2723 if (q->symbol.value > low_line_vma)
2724 {
2725 *line_ptr = 0;
2726 line_file_name = NULL;
2727 }
2728 if (q->symbol.value > low_func_vma)
2729 func = NULL;
2730 }
252b5132 2731
923f08ff
AM		 2732 main_file_name = current_file_name = q->symbol.name;
2733 /* Look ahead to next symbol to check if that too is an N_SO. */
2734 p++;
2735 if (*p == NULL)
c3864421 2736 goto done;
923f08ff
AM		 2737 q = (aout_symbol_type *) (*p);
2738 if (q->type != (int)N_SO)
2739 goto next;
2740
2741 /* Found a second N_SO First is directory; second is filename. */
2742 directory_name = current_file_name;
2743 main_file_name = current_file_name = q->symbol.name;
2744 if (obj_textsec (abfd) != section)
2745 goto done;
2746 break;
2747 case N_SOL:
2748 current_file_name = q->symbol.name;
2749 break;
252b5132 2750
923f08ff 2751 case N_SLINE:
252b5132 2752
923f08ff
AM		 2753 case N_DSLINE:
2754 case N_BSLINE:
2755 /* We'll keep this if it resolves nearer than the one we have
2756 already. */
2757 if (q->symbol.value >= low_line_vma
2758 && q->symbol.value <= offset)
2759 {
2760 *line_ptr = q->desc;
2761 low_line_vma = q->symbol.value;
2762 line_file_name = current_file_name;
2763 line_directory_name = directory_name;
2764 }
2765 break;
2766 case N_FUN:
2767 {
f7c33884 2768 /* We'll keep this if it is nearer than the one we have already. */
808346fc
NC		 2769 if (q->symbol.value >= low_func_vma
2770 && q->symbol.value <= offset)
f7c33884
NC		 2771 {
2772 low_func_vma = q->symbol.value;
2773 func = (asymbol *)q;
2774 }
923f08ff
AM		 2775 else if (q->symbol.value > offset)
2776 goto done;
2777 }
2778 break;
2779 }
252b5132 2780 }
252b5132 2781 }
252b5132
RH		 2782
2783 done:
2784 if (*line_ptr != 0)
2785 {
2786 main_file_name = line_file_name;
2787 directory_name = line_directory_name;
2788 }
2789
2790 if (main_file_name == NULL
5af11cab 2791 || IS_ABSOLUTE_PATH (main_file_name)
252b5132
RH		 2792 || directory_name == NULL)
2793 filelen = 0;
2794 else
2795 filelen = strlen (directory_name) + strlen (main_file_name);
f7c33884 2796
252b5132
RH		 2797 if (func == NULL)
2798 funclen = 0;
2799 else
2800 funclen = strlen (bfd_asymbol_name (func));
2801
2802 if (adata (abfd).line_buf != NULL)
2803 free (adata (abfd).line_buf);
f7c33884 2804
252b5132
RH		 2805 if (filelen + funclen == 0)
2806 adata (abfd).line_buf = buf = NULL;
2807 else
2808 {
a50b1753 2809 buf = (char *) bfd_malloc (filelen + funclen + 3);
252b5132
RH		 2810 adata (abfd).line_buf = buf;
2811 if (buf == NULL)
b34976b6 2812 return FALSE;
252b5132
RH		 2813 }
2814
2815 if (main_file_name != NULL)
2816 {
5af11cab 2817 if (IS_ABSOLUTE_PATH (main_file_name) || directory_name == NULL)
252b5132
RH		 2818 *filename_ptr = main_file_name;
2819 else
2820 {
50455f1a
NC		 2821 if (buf == NULL)
2822 /* PR binutils/20891: In a corrupt input file both
2823 main_file_name and directory_name can be empty... */
2824 * filename_ptr = NULL;
2825 else
2826 {
2827 snprintf (buf, filelen + 1, "%s%s", directory_name,
2828 main_file_name);
2829 *filename_ptr = buf;
2830 buf += filelen + 1;
2831 }
252b5132
RH		 2832 }
2833 }
2834
2835 if (func)
2836 {
2837 const char *function = func->name;
dc810e39 2838 char *colon;
252b5132 2839
e82ab856
NC		 2840 if (buf == NULL)
2841 {
2842 /* PR binutils/20892: In a corrupt input file func can be empty. */
2843 * functionname_ptr = NULL;
2844 return TRUE;
2845 }
252b5132
RH		 2846 /* The caller expects a symbol name. We actually have a
2847 function name, without the leading underscore. Put the
2848 underscore back in, so that the caller gets a symbol name. */
2849 if (bfd_get_symbol_leading_char (abfd) == '\0')
2850 strcpy (buf, function);
2851 else
2852 {
2853 buf[0] = bfd_get_symbol_leading_char (abfd);
2854 strcpy (buf + 1, function);
2855 }
f7c33884 2856 /* Have to remove : stuff. */
dc810e39
AM		 2857 colon = strchr (buf, ':');
2858 if (colon != NULL)
2859 *colon = '\0';
252b5132
RH		 2860 *functionname_ptr = buf;
2861 }
2862
b34976b6 2863 return TRUE;
252b5132
RH		 2864}
2865
252b5132 2866int
a6b96beb
AM		 2867NAME (aout, sizeof_headers) (bfd *abfd,
2868 struct bfd_link_info *info ATTRIBUTE_UNUSED)
252b5132 2869{
923f08ff 2870 return adata (abfd).exec_bytes_size;
252b5132
RH		 2871}
2872
2873/* Free all information we have cached for this BFD. We can always
2874 read it again later if we need it. */
2875
b34976b6 2876bfd_boolean
116c20d2 2877NAME (aout, bfd_free_cached_info) (bfd *abfd)
252b5132
RH		 2878{
2879 asection *o;
2880
920581c5
L		 2881 if (bfd_get_format (abfd) != bfd_object
2882 || abfd->tdata.aout_data == NULL)
b34976b6 2883 return TRUE;
252b5132
RH		 2884
2885#define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
2886 BFCI_FREE (obj_aout_symbols (abfd));
2887#ifdef USE_MMAP
2888 obj_aout_external_syms (abfd) = 0;
2889 bfd_free_window (&obj_aout_sym_window (abfd));
2890 bfd_free_window (&obj_aout_string_window (abfd));
2891 obj_aout_external_strings (abfd) = 0;
2892#else
2893 BFCI_FREE (obj_aout_external_syms (abfd));
2894 BFCI_FREE (obj_aout_external_strings (abfd));
2895#endif
116c20d2 2896 for (o = abfd->sections; o != NULL; o = o->next)
252b5132
RH		 2897 BFCI_FREE (o->relocation);
2898#undef BFCI_FREE
2899
b34976b6 2900 return TRUE;
252b5132
RH		 2901}
2902\f
2903/* a.out link code. */
2904
252b5132
RH		 2905/* Routine to create an entry in an a.out link hash table. */
2906
2907struct bfd_hash_entry *
116c20d2
NC		 2908NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry,
2909 struct bfd_hash_table *table,
2910 const char *string)
252b5132
RH		 2911{
2912 struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry;
2913
2914 /* Allocate the structure if it has not already been allocated by a
2915 subclass. */
116c20d2 2916 if (ret == NULL)
a50b1753 2917 ret = (struct aout_link_hash_entry *) bfd_hash_allocate (table,
07d6d2b8 2918 sizeof (* ret));
116c20d2
NC		 2919 if (ret == NULL)
2920 return NULL;
252b5132
RH		 2921
2922 /* Call the allocation method of the superclass. */
2923 ret = ((struct aout_link_hash_entry *)
2924 _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2925 table, string));
2926 if (ret)
2927 {
2928 /* Set local fields. */
b34976b6 2929 ret->written = FALSE;
252b5132
RH		 2930 ret->indx = -1;
2931 }
2932
2933 return (struct bfd_hash_entry *) ret;
2934}
2935
2936/* Initialize an a.out link hash table. */
2937
b34976b6 2938bfd_boolean
116c20d2
NC		 2939NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table,
2940 bfd *abfd,
2941 struct bfd_hash_entry *(*newfunc)
2942 (struct bfd_hash_entry *, struct bfd_hash_table *,
66eb6687
AM		 2943 const char *),
2944 unsigned int entsize)
252b5132 2945{
66eb6687 2946 return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize);
252b5132
RH		 2947}
2948
2949/* Create an a.out link hash table. */
2950
2951struct bfd_link_hash_table *
116c20d2 2952NAME (aout, link_hash_table_create) (bfd *abfd)
252b5132
RH		 2953{
2954 struct aout_link_hash_table *ret;
986f0783 2955 size_t amt = sizeof (* ret);
252b5132 2956
a50b1753 2957 ret = (struct aout_link_hash_table *) bfd_malloc (amt);
252b5132 2958 if (ret == NULL)
116c20d2 2959 return NULL;
5ed6aba4 2960
66eb6687
AM		 2961 if (!NAME (aout, link_hash_table_init) (ret, abfd,
2962 NAME (aout, link_hash_newfunc),
2963 sizeof (struct aout_link_hash_entry)))
252b5132
RH		 2964 {
2965 free (ret);
116c20d2 2966 return NULL;
252b5132
RH		 2967 }
2968 return &ret->root;
2969}
2970
116c20d2 2971/* Add all symbols from an object file to the hash table. */
252b5132 2972
b34976b6 2973static bfd_boolean
116c20d2 2974aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 2975{
116c20d2
NC		 2976 bfd_boolean (*add_one_symbol)
2977 (struct bfd_link_info *, bfd *, const char *, flagword, asection *,
2978 bfd_vma, const char *, bfd_boolean, bfd_boolean,
2979 struct bfd_link_hash_entry **);
2980 struct external_nlist *syms;
2981 bfd_size_type sym_count;
2982 char *strings;
2983 bfd_boolean copy;
2984 struct aout_link_hash_entry **sym_hash;
2985 struct external_nlist *p;
2986 struct external_nlist *pend;
2987 bfd_size_type amt;
252b5132 2988
116c20d2
NC		 2989 syms = obj_aout_external_syms (abfd);
2990 sym_count = obj_aout_external_sym_count (abfd);
2991 strings = obj_aout_external_strings (abfd);
2992 if (info->keep_memory)
2993 copy = FALSE;
2994 else
2995 copy = TRUE;
252b5132 2996
116c20d2 2997 if (aout_backend_info (abfd)->add_dynamic_symbols != NULL)
252b5132 2998 {
116c20d2
NC		 2999 if (! ((*aout_backend_info (abfd)->add_dynamic_symbols)
3000 (abfd, info, &syms, &sym_count, &strings)))
b34976b6 3001 return FALSE;
252b5132
RH		 3002 }
3003
20c6e70e
MS		 3004 if (sym_count == 0)
3005 return TRUE; /* Nothing to do. */
3006
116c20d2
NC		 3007 /* We keep a list of the linker hash table entries that correspond
3008 to particular symbols. We could just look them up in the hash
3009 table, but keeping the list is more efficient. Perhaps this
3010 should be conditional on info->keep_memory. */
3011 amt = sym_count * sizeof (struct aout_link_hash_entry *);
a50b1753 3012 sym_hash = (struct aout_link_hash_entry **) bfd_alloc (abfd, amt);
20c6e70e 3013 if (sym_hash == NULL)
116c20d2
NC		 3014 return FALSE;
3015 obj_aout_sym_hashes (abfd) = sym_hash;
252b5132 3016
116c20d2
NC		 3017 add_one_symbol = aout_backend_info (abfd)->add_one_symbol;
3018 if (add_one_symbol == NULL)
3019 add_one_symbol = _bfd_generic_link_add_one_symbol;
252b5132 3020
116c20d2
NC		 3021 p = syms;
3022 pend = p + sym_count;
3023 for (; p < pend; p++, sym_hash++)
252b5132 3024 {
116c20d2 3025 int type;
252b5132 3026 const char *name;
116c20d2
NC		 3027 bfd_vma value;
3028 asection *section;
3029 flagword flags;
3030 const char *string;
252b5132 3031
116c20d2 3032 *sym_hash = NULL;
252b5132 3033
116c20d2 3034 type = H_GET_8 (abfd, p->e_type);
252b5132 3035
116c20d2
NC		 3036 /* Ignore debugging symbols. */
3037 if ((type & N_STAB) != 0)
3038 continue;
252b5132 3039
e517df3d 3040 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
531336e3 3041 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3042 return FALSE;
116c20d2
NC		 3043 name = strings + GET_WORD (abfd, p->e_strx);
3044 value = GET_WORD (abfd, p->e_value);
3045 flags = BSF_GLOBAL;
3046 string = NULL;
3047 switch (type)
252b5132 3048 {
116c20d2
NC		 3049 default:
3050 abort ();
f7c33884 3051
116c20d2
NC		 3052 case N_UNDF:
3053 case N_ABS:
3054 case N_TEXT:
3055 case N_DATA:
3056 case N_BSS:
3057 case N_FN_SEQ:
3058 case N_COMM:
3059 case N_SETV:
3060 case N_FN:
3061 /* Ignore symbols that are not externally visible. */
3062 continue;
3063 case N_INDR:
3064 /* Ignore local indirect symbol. */
3065 ++p;
3066 ++sym_hash;
3067 continue;
252b5132 3068
116c20d2
NC		 3069 case N_UNDF | N_EXT:
3070 if (value == 0)
f7c33884 3071 {
116c20d2
NC		 3072 section = bfd_und_section_ptr;
3073 flags = 0;
252b5132
RH		 3074 }
3075 else
3076 section = bfd_com_section_ptr;
3077 break;
3078 case N_ABS | N_EXT:
3079 section = bfd_abs_section_ptr;
3080 break;
3081 case N_TEXT | N_EXT:
3082 section = obj_textsec (abfd);
fd361982 3083 value -= bfd_section_vma (section);
252b5132
RH		 3084 break;
3085 case N_DATA | N_EXT:
3086 case N_SETV | N_EXT:
3087 /* Treat N_SETV symbols as N_DATA symbol; see comment in
3088 translate_from_native_sym_flags. */
3089 section = obj_datasec (abfd);
fd361982 3090 value -= bfd_section_vma (section);
252b5132
RH		 3091 break;
3092 case N_BSS | N_EXT:
3093 section = obj_bsssec (abfd);
fd361982 3094 value -= bfd_section_vma (section);
252b5132
RH		 3095 break;
3096 case N_INDR | N_EXT:
3097 /* An indirect symbol. The next symbol is the symbol
3098 which this one really is. */
39d4daf6
NC		 3099 /* See PR 20925 for a reproducer. */
3100 if (p + 1 >= pend)
3101 return FALSE;
252b5132 3102 ++p;
e517df3d 3103 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3104 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3105 return FALSE;
252b5132
RH		 3106 string = strings + GET_WORD (abfd, p->e_strx);
3107 section = bfd_ind_section_ptr;
3108 flags |= BSF_INDIRECT;
3109 break;
3110 case N_COMM | N_EXT:
3111 section = bfd_com_section_ptr;
3112 break;
3113 case N_SETA: case N_SETA | N_EXT:
3114 section = bfd_abs_section_ptr;
3115 flags |= BSF_CONSTRUCTOR;
3116 break;
3117 case N_SETT: case N_SETT | N_EXT:
3118 section = obj_textsec (abfd);
3119 flags |= BSF_CONSTRUCTOR;
fd361982 3120 value -= bfd_section_vma (section);
252b5132
RH		 3121 break;
3122 case N_SETD: case N_SETD | N_EXT:
3123 section = obj_datasec (abfd);
3124 flags |= BSF_CONSTRUCTOR;
fd361982 3125 value -= bfd_section_vma (section);
252b5132
RH		 3126 break;
3127 case N_SETB: case N_SETB | N_EXT:
3128 section = obj_bsssec (abfd);
3129 flags |= BSF_CONSTRUCTOR;
fd361982 3130 value -= bfd_section_vma (section);
252b5132
RH		 3131 break;
3132 case N_WARNING:
3133 /* A warning symbol. The next symbol is the one to warn
9f400ee9
HPN		 3134 about. If there is no next symbol, just look away. */
3135 if (p + 1 >= pend)
3136 return TRUE;
252b5132
RH		 3137 ++p;
3138 string = name;
e517df3d 3139 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3140 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3141 return FALSE;
252b5132
RH		 3142 name = strings + GET_WORD (abfd, p->e_strx);
3143 section = bfd_und_section_ptr;
3144 flags |= BSF_WARNING;
3145 break;
3146 case N_WEAKU:
3147 section = bfd_und_section_ptr;
3148 flags = BSF_WEAK;
3149 break;
3150 case N_WEAKA:
3151 section = bfd_abs_section_ptr;
3152 flags = BSF_WEAK;
3153 break;
3154 case N_WEAKT:
3155 section = obj_textsec (abfd);
fd361982 3156 value -= bfd_section_vma (section);
252b5132
RH		 3157 flags = BSF_WEAK;
3158 break;
3159 case N_WEAKD:
3160 section = obj_datasec (abfd);
fd361982 3161 value -= bfd_section_vma (section);
252b5132
RH		 3162 flags = BSF_WEAK;
3163 break;
3164 case N_WEAKB:
3165 section = obj_bsssec (abfd);
fd361982 3166 value -= bfd_section_vma (section);
252b5132
RH		 3167 flags = BSF_WEAK;
3168 break;
3169 }
3170
3171 if (! ((*add_one_symbol)
b34976b6 3172 (info, abfd, name, flags, section, value, string, copy, FALSE,
252b5132 3173 (struct bfd_link_hash_entry **) sym_hash)))
b34976b6 3174 return FALSE;
252b5132
RH		 3175
3176 /* Restrict the maximum alignment of a common symbol based on
3177 the architecture, since a.out has no way to represent
3178 alignment requirements of a section in a .o file. FIXME:
3179 This isn't quite right: it should use the architecture of the
3180 output file, not the input files. */
3181 if ((*sym_hash)->root.type == bfd_link_hash_common
3182 && ((*sym_hash)->root.u.c.p->alignment_power >
3183 bfd_get_arch_info (abfd)->section_align_power))
3184 (*sym_hash)->root.u.c.p->alignment_power =
3185 bfd_get_arch_info (abfd)->section_align_power;
3186
3187 /* If this is a set symbol, and we are not building sets, then
3188 it is possible for the hash entry to not have been set. In
3189 such a case, treat the symbol as not globally defined. */
3190 if ((*sym_hash)->root.type == bfd_link_hash_new)
3191 {
3192 BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0);
3193 *sym_hash = NULL;
3194 }
3195
3196 if (type == (N_INDR | N_EXT) || type == N_WARNING)
3197 ++sym_hash;
3198 }
3199
b34976b6 3200 return TRUE;
252b5132 3201}
252b5132 3202
116c20d2
NC		 3203/* Free up the internal symbols read from an a.out file. */
3204
3205static bfd_boolean
3206aout_link_free_symbols (bfd *abfd)
252b5132 3207{
116c20d2
NC		 3208 if (obj_aout_external_syms (abfd) != NULL)
3209 {
3210#ifdef USE_MMAP
3211 bfd_free_window (&obj_aout_sym_window (abfd));
3212#else
3213 free ((void *) obj_aout_external_syms (abfd));
3214#endif
3215 obj_aout_external_syms (abfd) = NULL;
3216 }
3217 if (obj_aout_external_strings (abfd) != NULL)
3218 {
3219#ifdef USE_MMAP
3220 bfd_free_window (&obj_aout_string_window (abfd));
3221#else
3222 free ((void *) obj_aout_external_strings (abfd));
3223#endif
3224 obj_aout_external_strings (abfd) = NULL;
3225 }
3226 return TRUE;
3227}
252b5132 3228
116c20d2 3229/* Add symbols from an a.out object file. */
252b5132 3230
116c20d2
NC		 3231static bfd_boolean
3232aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 3233{
116c20d2
NC		 3234 if (! aout_get_external_symbols (abfd))
3235 return FALSE;
3236 if (! aout_link_add_symbols (abfd, info))
3237 return FALSE;
3238 if (! info->keep_memory)
3239 {
3240 if (! aout_link_free_symbols (abfd))
3241 return FALSE;
3242 }
3243 return TRUE;
3244}
252b5132 3245
116c20d2
NC		 3246/* Look through the internal symbols to see if this object file should
3247 be included in the link. We should include this object file if it
3248 defines any symbols which are currently undefined. If this object
3249 file defines a common symbol, then we may adjust the size of the
3250 known symbol but we do not include the object file in the link
3251 (unless there is some other reason to include it). */
252b5132 3252
116c20d2
NC		 3253static bfd_boolean
3254aout_link_check_ar_symbols (bfd *abfd,
3255 struct bfd_link_info *info,
5d3236ee
DK		 3256 bfd_boolean *pneeded,
3257 bfd **subsbfd)
252b5132 3258{
116c20d2
NC		 3259 struct external_nlist *p;
3260 struct external_nlist *pend;
3261 char *strings;
252b5132 3262
116c20d2 3263 *pneeded = FALSE;
252b5132 3264
116c20d2
NC		 3265 /* Look through all the symbols. */
3266 p = obj_aout_external_syms (abfd);
3267 pend = p + obj_aout_external_sym_count (abfd);
3268 strings = obj_aout_external_strings (abfd);
3269 for (; p < pend; p++)
3270 {
3271 int type = H_GET_8 (abfd, p->e_type);
3272 const char *name;
3273 struct bfd_link_hash_entry *h;
252b5132 3274
116c20d2
NC		 3275 /* Ignore symbols that are not externally visible. This is an
3276 optimization only, as we check the type more thoroughly
3277 below. */
3278 if (((type & N_EXT) == 0
3279 || (type & N_STAB) != 0
3280 || type == N_FN)
3281 && type != N_WEAKA
3282 && type != N_WEAKT
3283 && type != N_WEAKD
3284 && type != N_WEAKB)
3285 {
3286 if (type == N_WARNING
3287 || type == N_INDR)
3288 ++p;
3289 continue;
3290 }
3291
3292 name = strings + GET_WORD (abfd, p->e_strx);
3293 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
3294
3295 /* We are only interested in symbols that are currently
3296 undefined or common. */
3297 if (h == NULL
3298 || (h->type != bfd_link_hash_undefined
3299 && h->type != bfd_link_hash_common))
3300 {
3301 if (type == (N_INDR | N_EXT))
3302 ++p;
3303 continue;
3304 }
3305
3306 if (type == (N_TEXT | N_EXT)
3307 || type == (N_DATA | N_EXT)
3308 || type == (N_BSS | N_EXT)
3309 || type == (N_ABS | N_EXT)
3310 || type == (N_INDR | N_EXT))
3311 {
3312 /* This object file defines this symbol. We must link it
3313 in. This is true regardless of whether the current
3314 definition of the symbol is undefined or common.
3315
07d6d2b8 3316 If the current definition is common, we have a case in
116c20d2 3317 which we have already seen an object file including:
07d6d2b8 3318 int a;
116c20d2 3319 and this object file from the archive includes:
07d6d2b8 3320 int a = 5;
116c20d2 3321 In such a case, whether to include this object is target
07d6d2b8 3322 dependant for backward compatibility.
116c20d2
NC		 3323
3324 FIXME: The SunOS 4.1.3 linker will pull in the archive
3325 element if the symbol is defined in the .data section,
3326 but not if it is defined in the .text section. That
3327 seems a bit crazy to me, and it has not been implemented
3328 yet. However, it might be correct. */
3329 if (h->type == bfd_link_hash_common)
3330 {
3331 int skip = 0;
3332
f88dc410 3333 switch (info->common_skip_ar_symbols)
116c20d2 3334 {
a78eea16
AM		 3335 case bfd_link_common_skip_none:
3336 break;
116c20d2
NC		 3337 case bfd_link_common_skip_text:
3338 skip = (type == (N_TEXT | N_EXT));
3339 break;
3340 case bfd_link_common_skip_data:
3341 skip = (type == (N_DATA | N_EXT));
3342 break;
116c20d2
NC		 3343 case bfd_link_common_skip_all:
3344 skip = 1;
3345 break;
3346 }
3347
3348 if (skip)
3349 continue;
3350 }
3351
0e144ba7
AM		 3352 if (!(*info->callbacks
3353 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3354 return FALSE;
3355 *pneeded = TRUE;
3356 return TRUE;
3357 }
3358
3359 if (type == (N_UNDF | N_EXT))
3360 {
3361 bfd_vma value;
3362
3363 value = GET_WORD (abfd, p->e_value);
3364 if (value != 0)
3365 {
3366 /* This symbol is common in the object from the archive
3367 file. */
3368 if (h->type == bfd_link_hash_undefined)
3369 {
3370 bfd *symbfd;
3371 unsigned int power;
3372
3373 symbfd = h->u.undef.abfd;
3374 if (symbfd == NULL)
3375 {
3376 /* This symbol was created as undefined from
3377 outside BFD. We assume that we should link
3378 in the object file. This is done for the -u
3379 option in the linker. */
0e144ba7
AM		 3380 if (!(*info->callbacks
3381 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3382 return FALSE;
3383 *pneeded = TRUE;
3384 return TRUE;
3385 }
3386 /* Turn the current link symbol into a common
3387 symbol. It is already on the undefs list. */
3388 h->type = bfd_link_hash_common;
a50b1753 3389 h->u.c.p = (struct bfd_link_hash_common_entry *)
0e144ba7
AM		 3390 bfd_hash_allocate (&info->hash->table,
3391 sizeof (struct bfd_link_hash_common_entry));
116c20d2
NC		 3392 if (h->u.c.p == NULL)
3393 return FALSE;
3394
3395 h->u.c.size = value;
3396
3397 /* FIXME: This isn't quite right. The maximum
3398 alignment of a common symbol should be set by the
3399 architecture of the output file, not of the input
3400 file. */
3401 power = bfd_log2 (value);
3402 if (power > bfd_get_arch_info (abfd)->section_align_power)
3403 power = bfd_get_arch_info (abfd)->section_align_power;
3404 h->u.c.p->alignment_power = power;
3405
3406 h->u.c.p->section = bfd_make_section_old_way (symbfd,
3407 "COMMON");
3408 }
3409 else
3410 {
3411 /* Adjust the size of the common symbol if
3412 necessary. */
3413 if (value > h->u.c.size)
3414 h->u.c.size = value;
3415 }
3416 }
3417 }
3418
3419 if (type == N_WEAKA
3420 || type == N_WEAKT
3421 || type == N_WEAKD
3422 || type == N_WEAKB)
3423 {
3424 /* This symbol is weak but defined. We must pull it in if
3425 the current link symbol is undefined, but we don't want
3426 it if the current link symbol is common. */
3427 if (h->type == bfd_link_hash_undefined)
3428 {
0e144ba7
AM		 3429 if (!(*info->callbacks
3430 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3431 return FALSE;
3432 *pneeded = TRUE;
3433 return TRUE;
3434 }
3435 }
3436 }
3437
3438 /* We do not need this object file. */
3439 return TRUE;
3440}
3441/* Check a single archive element to see if we need to include it in
3442 the link. *PNEEDED is set according to whether this element is
3443 needed in the link or not. This is called from
3444 _bfd_generic_link_add_archive_symbols. */
3445
3446static bfd_boolean
3447aout_link_check_archive_element (bfd *abfd,
3448 struct bfd_link_info *info,
13e570f8
AM		 3449 struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
3450 const char *name ATTRIBUTE_UNUSED,
116c20d2
NC		 3451 bfd_boolean *pneeded)
3452{
0e144ba7
AM		 3453 bfd *oldbfd;
3454 bfd_boolean needed;
5d3236ee 3455
0e144ba7 3456 if (!aout_get_external_symbols (abfd))
116c20d2
NC		 3457 return FALSE;
3458
0e144ba7
AM		 3459 oldbfd = abfd;
3460 if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd))
116c20d2
NC		 3461 return FALSE;
3462
0e144ba7
AM		 3463 needed = *pneeded;
3464 if (needed)
116c20d2 3465 {
5d3236ee
DK		 3466 /* Potentially, the add_archive_element hook may have set a
3467 substitute BFD for us. */
0e144ba7
AM		 3468 if (abfd != oldbfd)
3469 {
3470 if (!info->keep_memory
3471 && !aout_link_free_symbols (oldbfd))
3472 return FALSE;
3473 if (!aout_get_external_symbols (abfd))
3474 return FALSE;
3475 }
3476 if (!aout_link_add_symbols (abfd, info))
116c20d2
NC		 3477 return FALSE;
3478 }
3479
0e144ba7 3480 if (!info->keep_memory || !needed)
116c20d2 3481 {
0e144ba7 3482 if (!aout_link_free_symbols (abfd))
116c20d2
NC		 3483 return FALSE;
3484 }
3485
3486 return TRUE;
3487}
3488
3489/* Given an a.out BFD, add symbols to the global hash table as
3490 appropriate. */
3491
3492bfd_boolean
3493NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
3494{
3495 switch (bfd_get_format (abfd))
3496 {
3497 case bfd_object:
3498 return aout_link_add_object_symbols (abfd, info);
3499 case bfd_archive:
3500 return _bfd_generic_link_add_archive_symbols
3501 (abfd, info, aout_link_check_archive_element);
3502 default:
3503 bfd_set_error (bfd_error_wrong_format);
3504 return FALSE;
3505 }
3506}
3507\f
3508/* A hash table used for header files with N_BINCL entries. */
3509
3510struct aout_link_includes_table
3511{
3512 struct bfd_hash_table root;
3513};
3514
3515/* A linked list of totals that we have found for a particular header
3516 file. */
3517
3518struct aout_link_includes_totals
3519{
3520 struct aout_link_includes_totals *next;
3521 bfd_vma total;
3522};
3523
3524/* An entry in the header file hash table. */
3525
3526struct aout_link_includes_entry
3527{
3528 struct bfd_hash_entry root;
3529 /* List of totals we have found for this file. */
3530 struct aout_link_includes_totals *totals;
3531};
3532
3533/* Look up an entry in an the header file hash table. */
3534
3535#define aout_link_includes_lookup(table, string, create, copy) \
3536 ((struct aout_link_includes_entry *) \
3537 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
3538
3539/* During the final link step we need to pass around a bunch of
3540 information, so we do it in an instance of this structure. */
3541
3542struct aout_final_link_info
3543{
3544 /* General link information. */
3545 struct bfd_link_info *info;
3546 /* Output bfd. */
252b5132
RH		 3547 bfd *output_bfd;
3548 /* Reloc file positions. */
3549 file_ptr treloff, dreloff;
3550 /* File position of symbols. */
3551 file_ptr symoff;
3552 /* String table. */
3553 struct bfd_strtab_hash *strtab;
3554 /* Header file hash table. */
3555 struct aout_link_includes_table includes;
3556 /* A buffer large enough to hold the contents of any section. */
3557 bfd_byte *contents;
3558 /* A buffer large enough to hold the relocs of any section. */
116c20d2 3559 void * relocs;
252b5132
RH		 3560 /* A buffer large enough to hold the symbol map of any input BFD. */
3561 int *symbol_map;
3562 /* A buffer large enough to hold output symbols of any input BFD. */
3563 struct external_nlist *output_syms;
3564};
3565
252b5132
RH		 3566/* The function to create a new entry in the header file hash table. */
3567
3568static struct bfd_hash_entry *
116c20d2
NC		 3569aout_link_includes_newfunc (struct bfd_hash_entry *entry,
3570 struct bfd_hash_table *table,
3571 const char *string)
252b5132
RH		 3572{
3573 struct aout_link_includes_entry *ret =
3574 (struct aout_link_includes_entry *) entry;
3575
3576 /* Allocate the structure if it has not already been allocated by a
3577 subclass. */
116c20d2 3578 if (ret == NULL)
a50b1753 3579 ret = (struct aout_link_includes_entry *)
07d6d2b8 3580 bfd_hash_allocate (table, sizeof (* ret));
116c20d2
NC		 3581 if (ret == NULL)
3582 return NULL;
252b5132
RH		 3583
3584 /* Call the allocation method of the superclass. */
3585 ret = ((struct aout_link_includes_entry *)
3586 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
3587 if (ret)
3588 {
3589 /* Set local fields. */
3590 ret->totals = NULL;
3591 }
3592
3593 return (struct bfd_hash_entry *) ret;
3594}
3595
116c20d2
NC		 3596/* Write out a symbol that was not associated with an a.out input
3597 object. */
252b5132 3598
116c20d2 3599static bfd_boolean
7686d77d 3600aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data)
252b5132 3601{
7686d77d 3602 struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh;
57402f1e 3603 struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data;
116c20d2
NC		 3604 bfd *output_bfd;
3605 int type;
3606 bfd_vma val;
3607 struct external_nlist outsym;
3608 bfd_size_type indx;
986f0783 3609 size_t amt;
252b5132 3610
116c20d2
NC		 3611 if (h->root.type == bfd_link_hash_warning)
3612 {
3613 h = (struct aout_link_hash_entry *) h->root.u.i.link;
3614 if (h->root.type == bfd_link_hash_new)
3615 return TRUE;
3616 }
252b5132 3617
57402f1e 3618 output_bfd = flaginfo->output_bfd;
252b5132 3619
116c20d2 3620 if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
252b5132 3621 {
116c20d2 3622 if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
57402f1e 3623 (output_bfd, flaginfo->info, h)))
252b5132 3624 {
116c20d2
NC		 3625 /* FIXME: No way to handle errors. */
3626 abort ();
252b5132 3627 }
116c20d2 3628 }
252b5132 3629
116c20d2
NC		 3630 if (h->written)
3631 return TRUE;
252b5132 3632
116c20d2 3633 h->written = TRUE;
252b5132 3634
116c20d2
NC		 3635 /* An indx of -2 means the symbol must be written. */
3636 if (h->indx != -2
57402f1e
NC		 3637 && (flaginfo->info->strip == strip_all
3638 || (flaginfo->info->strip == strip_some
3639 && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string,
116c20d2
NC		 3640 FALSE, FALSE) == NULL)))
3641 return TRUE;
252b5132 3642
116c20d2 3643 switch (h->root.type)
252b5132 3644 {
116c20d2
NC		 3645 default:
3646 case bfd_link_hash_warning:
3647 abort ();
3648 /* Avoid variable not initialized warnings. */
3649 return TRUE;
3650 case bfd_link_hash_new:
3651 /* This can happen for set symbols when sets are not being
07d6d2b8 3652 built. */
116c20d2
NC		 3653 return TRUE;
3654 case bfd_link_hash_undefined:
3655 type = N_UNDF | N_EXT;
3656 val = 0;
3657 break;
3658 case bfd_link_hash_defined:
3659 case bfd_link_hash_defweak:
3660 {
3661 asection *sec;
252b5132 3662
116c20d2
NC		 3663 sec = h->root.u.def.section->output_section;
3664 BFD_ASSERT (bfd_is_abs_section (sec)
3665 || sec->owner == output_bfd);
3666 if (sec == obj_textsec (output_bfd))
3667 type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
3668 else if (sec == obj_datasec (output_bfd))
3669 type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
3670 else if (sec == obj_bsssec (output_bfd))
3671 type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
3672 else
3673 type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
3674 type |= N_EXT;
3675 val = (h->root.u.def.value
3676 + sec->vma
3677 + h->root.u.def.section->output_offset);
3678 }
3679 break;
3680 case bfd_link_hash_common:
3681 type = N_UNDF | N_EXT;
3682 val = h->root.u.c.size;
3683 break;
3684 case bfd_link_hash_undefweak:
3685 type = N_WEAKU;
3686 val = 0;
c38eb2a6 3687 break;
116c20d2
NC		 3688 case bfd_link_hash_indirect:
3689 /* We ignore these symbols, since the indirected symbol is
3690 already in the hash table. */
3691 return TRUE;
3692 }
252b5132 3693
116c20d2
NC		 3694 H_PUT_8 (output_bfd, type, outsym.e_type);
3695 H_PUT_8 (output_bfd, 0, outsym.e_other);
3696 H_PUT_16 (output_bfd, 0, outsym.e_desc);
57402f1e 3697 indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string,
116c20d2
NC		 3698 FALSE);
3699 if (indx == - (bfd_size_type) 1)
3700 /* FIXME: No way to handle errors. */
3701 abort ();
252b5132 3702
116c20d2
NC		 3703 PUT_WORD (output_bfd, indx, outsym.e_strx);
3704 PUT_WORD (output_bfd, val, outsym.e_value);
252b5132 3705
116c20d2 3706 amt = EXTERNAL_NLIST_SIZE;
57402f1e 3707 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0
116c20d2
NC		 3708 || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt)
3709 /* FIXME: No way to handle errors. */
3710 abort ();
252b5132 3711
57402f1e 3712 flaginfo->symoff += EXTERNAL_NLIST_SIZE;
116c20d2
NC		 3713 h->indx = obj_aout_external_sym_count (output_bfd);
3714 ++obj_aout_external_sym_count (output_bfd);
252b5132 3715
116c20d2
NC		 3716 return TRUE;
3717}
252b5132 3718
116c20d2 3719/* Handle a link order which is supposed to generate a reloc. */
252b5132 3720
116c20d2 3721static bfd_boolean
57402f1e 3722aout_link_reloc_link_order (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3723 asection *o,
3724 struct bfd_link_order *p)
3725{
3726 struct bfd_link_order_reloc *pr;
3727 int r_index;
3728 int r_extern;
3729 reloc_howto_type *howto;
3730 file_ptr *reloff_ptr = NULL;
3731 struct reloc_std_external srel;
3732 struct reloc_ext_external erel;
3733 void * rel_ptr;
986f0783 3734 size_t amt;
252b5132 3735
116c20d2 3736 pr = p->u.reloc.p;
252b5132 3737
116c20d2
NC		 3738 if (p->type == bfd_section_reloc_link_order)
3739 {
3740 r_extern = 0;
3741 if (bfd_is_abs_section (pr->u.section))
3742 r_index = N_ABS | N_EXT;
3743 else
3744 {
57402f1e 3745 BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd);
116c20d2
NC		 3746 r_index = pr->u.section->target_index;
3747 }
3748 }
3749 else
3750 {
3751 struct aout_link_hash_entry *h;
252b5132 3752
116c20d2
NC		 3753 BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
3754 r_extern = 1;
3755 h = ((struct aout_link_hash_entry *)
57402f1e 3756 bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info,
116c20d2
NC		 3757 pr->u.name, FALSE, FALSE, TRUE));
3758 if (h != NULL
3759 && h->indx >= 0)
3760 r_index = h->indx;
3761 else if (h != NULL)
3762 {
3763 /* We decided to strip this symbol, but it turns out that we
3764 can't. Note that we lose the other and desc information
3765 here. I don't think that will ever matter for a global
3766 symbol. */
3767 h->indx = -2;
3768 h->written = FALSE;
57402f1e 3769 if (!aout_link_write_other_symbol (&h->root.root, flaginfo))
116c20d2
NC		 3770 return FALSE;
3771 r_index = h->indx;
3772 }
3773 else
3774 {
1a72702b
AM		 3775 (*flaginfo->info->callbacks->unattached_reloc)
3776 (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0);
116c20d2
NC		 3777 r_index = 0;
3778 }
3779 }
252b5132 3780
57402f1e 3781 howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc);
116c20d2 3782 if (howto == 0)
252b5132 3783 {
116c20d2
NC		 3784 bfd_set_error (bfd_error_bad_value);
3785 return FALSE;
252b5132
RH		 3786 }
3787
57402f1e
NC		 3788 if (o == obj_textsec (flaginfo->output_bfd))
3789 reloff_ptr = &flaginfo->treloff;
3790 else if (o == obj_datasec (flaginfo->output_bfd))
3791 reloff_ptr = &flaginfo->dreloff;
116c20d2
NC		 3792 else
3793 abort ();
3794
57402f1e 3795 if (obj_reloc_entry_size (flaginfo->output_bfd) == RELOC_STD_SIZE)
252b5132 3796 {
116c20d2 3797#ifdef MY_put_reloc
57402f1e 3798 MY_put_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset, howto,
116c20d2
NC		 3799 &srel);
3800#else
3801 {
3802 int r_pcrel;
3803 int r_baserel;
3804 int r_jmptable;
3805 int r_relative;
3806 int r_length;
252b5132 3807
116c20d2
NC		 3808 r_pcrel = (int) howto->pc_relative;
3809 r_baserel = (howto->type & 8) != 0;
3810 r_jmptable = (howto->type & 16) != 0;
3811 r_relative = (howto->type & 32) != 0;
3812 r_length = howto->size;
252b5132 3813
57402f1e
NC		 3814 PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address);
3815 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3816 {
3817 srel.r_index[0] = r_index >> 16;
3818 srel.r_index[1] = r_index >> 8;
3819 srel.r_index[2] = r_index;
3820 srel.r_type[0] =
3821 ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
3822 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
3823 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
3824 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
3825 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
3826 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
3827 }
3828 else
3829 {
3830 srel.r_index[2] = r_index >> 16;
3831 srel.r_index[1] = r_index >> 8;
3832 srel.r_index[0] = r_index;
3833 srel.r_type[0] =
3834 ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
3835 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
3836 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
3837 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
3838 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
3839 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
3840 }
3841 }
3842#endif
3843 rel_ptr = (void *) &srel;
252b5132 3844
116c20d2
NC		 3845 /* We have to write the addend into the object file, since
3846 standard a.out relocs are in place. It would be more
3847 reliable if we had the current contents of the file here,
3848 rather than assuming zeroes, but we can't read the file since
3849 it was opened using bfd_openw. */
3850 if (pr->addend != 0)
252b5132 3851 {
116c20d2
NC		 3852 bfd_size_type size;
3853 bfd_reloc_status_type r;
3854 bfd_byte *buf;
3855 bfd_boolean ok;
3856
3857 size = bfd_get_reloc_size (howto);
a50b1753 3858 buf = (bfd_byte *) bfd_zmalloc (size);
6346d5ca 3859 if (buf == NULL && size != 0)
116c20d2 3860 return FALSE;
57402f1e 3861 r = MY_relocate_contents (howto, flaginfo->output_bfd,
116c20d2
NC		 3862 (bfd_vma) pr->addend, buf);
3863 switch (r)
252b5132 3864 {
116c20d2
NC		 3865 case bfd_reloc_ok:
3866 break;
3867 default:
3868 case bfd_reloc_outofrange:
3869 abort ();
3870 case bfd_reloc_overflow:
1a72702b
AM		 3871 (*flaginfo->info->callbacks->reloc_overflow)
3872 (flaginfo->info, NULL,
3873 (p->type == bfd_section_reloc_link_order
fd361982 3874 ? bfd_section_name (pr->u.section)
1a72702b
AM		 3875 : pr->u.name),
3876 howto->name, pr->addend, NULL, NULL, (bfd_vma) 0);
116c20d2 3877 break;
252b5132 3878 }
57402f1e 3879 ok = bfd_set_section_contents (flaginfo->output_bfd, o, (void *) buf,
116c20d2
NC		 3880 (file_ptr) p->offset, size);
3881 free (buf);
3882 if (! ok)
3883 return FALSE;
252b5132
RH		 3884 }
3885 }
116c20d2 3886 else
252b5132 3887 {
116c20d2 3888#ifdef MY_put_ext_reloc
57402f1e 3889 MY_put_ext_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset,
116c20d2
NC		 3890 howto, &erel, pr->addend);
3891#else
57402f1e 3892 PUT_WORD (flaginfo->output_bfd, p->offset, erel.r_address);
252b5132 3893
57402f1e 3894 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3895 {
3896 erel.r_index[0] = r_index >> 16;
3897 erel.r_index[1] = r_index >> 8;
3898 erel.r_index[2] = r_index;
3899 erel.r_type[0] =
3900 ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
3901 | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG));
3902 }
3903 else
3904 {
3905 erel.r_index[2] = r_index >> 16;
3906 erel.r_index[1] = r_index >> 8;
3907 erel.r_index[0] = r_index;
3908 erel.r_type[0] =
3909 (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
3910 | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
3911 }
252b5132 3912
57402f1e 3913 PUT_WORD (flaginfo->output_bfd, (bfd_vma) pr->addend, erel.r_addend);
116c20d2 3914#endif /* MY_put_ext_reloc */
252b5132 3915
116c20d2 3916 rel_ptr = (void *) &erel;
252b5132 3917 }
252b5132 3918
57402f1e
NC		 3919 amt = obj_reloc_entry_size (flaginfo->output_bfd);
3920 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
3921 || bfd_bwrite (rel_ptr, amt, flaginfo->output_bfd) != amt)
116c20d2 3922 return FALSE;
252b5132 3923
57402f1e 3924 *reloff_ptr += obj_reloc_entry_size (flaginfo->output_bfd);
252b5132 3925
116c20d2
NC		 3926 /* Assert that the relocs have not run into the symbols, and that n
3927 the text relocs have not run into the data relocs. */
57402f1e
NC		 3928 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
3929 && (reloff_ptr != &flaginfo->treloff
116c20d2 3930 || (*reloff_ptr
57402f1e 3931 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 3932
3933 return TRUE;
252b5132
RH		 3934}
3935
116c20d2 3936/* Get the section corresponding to a reloc index. */
252b5132 3937
116c20d2
NC		 3938static INLINE asection *
3939aout_reloc_index_to_section (bfd *abfd, int indx)
252b5132 3940{
116c20d2 3941 switch (indx & N_TYPE)
252b5132 3942 {
116c20d2
NC		 3943 case N_TEXT: return obj_textsec (abfd);
3944 case N_DATA: return obj_datasec (abfd);
3945 case N_BSS: return obj_bsssec (abfd);
3946 case N_ABS:
3947 case N_UNDF: return bfd_abs_section_ptr;
3948 default: abort ();
252b5132 3949 }
116c20d2 3950 return NULL;
252b5132
RH		 3951}
3952
116c20d2 3953/* Relocate an a.out section using standard a.out relocs. */
252b5132 3954
b34976b6 3955static bfd_boolean
57402f1e 3956aout_link_input_section_std (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3957 bfd *input_bfd,
3958 asection *input_section,
3959 struct reloc_std_external *relocs,
3960 bfd_size_type rel_size,
3961 bfd_byte *contents)
252b5132 3962{
116c20d2
NC		 3963 bfd_boolean (*check_dynamic_reloc)
3964 (struct bfd_link_info *, bfd *, asection *,
3965 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
3966 bfd_vma *);
252b5132 3967 bfd *output_bfd;
116c20d2
NC		 3968 bfd_boolean relocatable;
3969 struct external_nlist *syms;
252b5132 3970 char *strings;
116c20d2 3971 struct aout_link_hash_entry **sym_hashes;
252b5132 3972 int *symbol_map;
116c20d2
NC		 3973 bfd_size_type reloc_count;
3974 struct reloc_std_external *rel;
3975 struct reloc_std_external *rel_end;
252b5132 3976
57402f1e 3977 output_bfd = flaginfo->output_bfd;
116c20d2 3978 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
252b5132 3979
116c20d2
NC		 3980 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE);
3981 BFD_ASSERT (input_bfd->xvec->header_byteorder
3982 == output_bfd->xvec->header_byteorder);
252b5132 3983
0e1862bb 3984 relocatable = bfd_link_relocatable (flaginfo->info);
116c20d2
NC		 3985 syms = obj_aout_external_syms (input_bfd);
3986 strings = obj_aout_external_strings (input_bfd);
3987 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 3988 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 3989
3990 reloc_count = rel_size / RELOC_STD_SIZE;
3991 rel = relocs;
3992 rel_end = rel + reloc_count;
3993 for (; rel < rel_end; rel++)
252b5132 3994 {
116c20d2
NC		 3995 bfd_vma r_addr;
3996 int r_index;
3997 int r_extern;
3998 int r_pcrel;
3999 int r_baserel = 0;
4000 reloc_howto_type *howto;
4001 struct aout_link_hash_entry *h = NULL;
4002 bfd_vma relocation;
4003 bfd_reloc_status_type r;
252b5132 4004
116c20d2 4005 r_addr = GET_SWORD (input_bfd, rel->r_address);
252b5132 4006
116c20d2
NC		 4007#ifdef MY_reloc_howto
4008 howto = MY_reloc_howto (input_bfd, rel, r_index, r_extern, r_pcrel);
4009#else
4010 {
4011 int r_jmptable;
4012 int r_relative;
4013 int r_length;
4014 unsigned int howto_idx;
252b5132 4015
116c20d2
NC		 4016 if (bfd_header_big_endian (input_bfd))
4017 {
4018 r_index = (((unsigned int) rel->r_index[0] << 16)
4019 | ((unsigned int) rel->r_index[1] << 8)
4020 | rel->r_index[2]);
4021 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
4022 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
4023 r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
4024 r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
4025 r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
4026 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
4027 >> RELOC_STD_BITS_LENGTH_SH_BIG);
4028 }
4029 else
4030 {
4031 r_index = (((unsigned int) rel->r_index[2] << 16)
4032 | ((unsigned int) rel->r_index[1] << 8)
4033 | rel->r_index[0]);
4034 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
4035 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
4036 r_baserel = (0 != (rel->r_type[0]
4037 & RELOC_STD_BITS_BASEREL_LITTLE));
4038 r_jmptable= (0 != (rel->r_type[0]
4039 & RELOC_STD_BITS_JMPTABLE_LITTLE));
4040 r_relative= (0 != (rel->r_type[0]
4041 & RELOC_STD_BITS_RELATIVE_LITTLE));
4042 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
4043 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
4044 }
252b5132 4045
116c20d2
NC		 4046 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
4047 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 4048 if (howto_idx < TABLE_SIZE (howto_table_std))
4049 howto = howto_table_std + howto_idx;
4050 else
4051 howto = NULL;
116c20d2
NC		 4052 }
4053#endif
252b5132 4054
ad756e3f
AM		 4055 if (howto == NULL)
4056 {
0aa13fee
AM		 4057 _bfd_error_handler (_("%pB: unsupported relocation type"),
4058 input_bfd);
ad756e3f
AM		 4059 bfd_set_error (bfd_error_bad_value);
4060 return FALSE;
4061 }
4062
116c20d2 4063 if (relocatable)
252b5132 4064 {
116c20d2
NC		 4065 /* We are generating a relocatable output file, and must
4066 modify the reloc accordingly. */
4067 if (r_extern)
252b5132 4068 {
116c20d2
NC		 4069 /* If we know the symbol this relocation is against,
4070 convert it into a relocation against a section. This
4071 is what the native linker does. */
4072 h = sym_hashes[r_index];
4073 if (h != NULL
4074 && (h->root.type == bfd_link_hash_defined
4075 || h->root.type == bfd_link_hash_defweak))
252b5132 4076 {
252b5132
RH		 4077 asection *output_section;
4078
116c20d2
NC		 4079 /* Change the r_extern value. */
4080 if (bfd_header_big_endian (output_bfd))
4081 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_BIG;
4082 else
4083 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE;
252b5132 4084
116c20d2
NC		 4085 /* Compute a new r_index. */
4086 output_section = h->root.u.def.section->output_section;
252b5132 4087 if (output_section == obj_textsec (output_bfd))
116c20d2 4088 r_index = N_TEXT;
252b5132 4089 else if (output_section == obj_datasec (output_bfd))
116c20d2 4090 r_index = N_DATA;
252b5132 4091 else if (output_section == obj_bsssec (output_bfd))
116c20d2 4092 r_index = N_BSS;
252b5132 4093 else
116c20d2 4094 r_index = N_ABS;
252b5132 4095
116c20d2
NC		 4096 /* Add the symbol value and the section VMA to the
4097 addend stored in the contents. */
4098 relocation = (h->root.u.def.value
4099 + output_section->vma
4100 + h->root.u.def.section->output_offset);
252b5132 4101 }
116c20d2 4102 else
252b5132 4103 {
116c20d2
NC		 4104 /* We must change r_index according to the symbol
4105 map. */
4106 r_index = symbol_map[r_index];
252b5132 4107
116c20d2 4108 if (r_index == -1)
252b5132 4109 {
116c20d2 4110 if (h != NULL)
252b5132 4111 {
116c20d2 4112 /* We decided to strip this symbol, but it
07d6d2b8
AM		 4113 turns out that we can't. Note that we
4114 lose the other and desc information here.
4115 I don't think that will ever matter for a
4116 global symbol. */
116c20d2 4117 if (h->indx < 0)
252b5132 4118 {
116c20d2
NC		 4119 h->indx = -2;
4120 h->written = FALSE;
7686d77d 4121 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4122 flaginfo))
116c20d2 4123 return FALSE;
252b5132 4124 }
116c20d2
NC		 4125 r_index = h->indx;
4126 }
4127 else
4128 {
4129 const char *name;
4130
4131 name = strings + GET_WORD (input_bfd,
4132 syms[r_index].e_strx);
1a72702b
AM		 4133 (*flaginfo->info->callbacks->unattached_reloc)
4134 (flaginfo->info, name,
4135 input_bfd, input_section, r_addr);
116c20d2 4136 r_index = 0;
252b5132
RH		 4137 }
4138 }
116c20d2
NC		 4139
4140 relocation = 0;
252b5132
RH		 4141 }
4142
116c20d2
NC		 4143 /* Write out the new r_index value. */
4144 if (bfd_header_big_endian (output_bfd))
252b5132 4145 {
116c20d2
NC		 4146 rel->r_index[0] = r_index >> 16;
4147 rel->r_index[1] = r_index >> 8;
4148 rel->r_index[2] = r_index;
252b5132
RH		 4149 }
4150 else
4151 {
116c20d2
NC		 4152 rel->r_index[2] = r_index >> 16;
4153 rel->r_index[1] = r_index >> 8;
4154 rel->r_index[0] = r_index;
252b5132
RH		 4155 }
4156 }
252b5132 4157 else
116c20d2
NC		 4158 {
4159 asection *section;
252b5132 4160
116c20d2
NC		 4161 /* This is a relocation against a section. We must
4162 adjust by the amount that the section moved. */
4163 section = aout_reloc_index_to_section (input_bfd, r_index);
4164 relocation = (section->output_section->vma
4165 + section->output_offset
4166 - section->vma);
4167 }
252b5132 4168
116c20d2
NC		 4169 /* Change the address of the relocation. */
4170 PUT_WORD (output_bfd,
4171 r_addr + input_section->output_offset,
4172 rel->r_address);
252b5132 4173
116c20d2
NC		 4174 /* Adjust a PC relative relocation by removing the reference
4175 to the original address in the section and including the
4176 reference to the new address. */
4177 if (r_pcrel)
4178 relocation -= (input_section->output_section->vma
4179 + input_section->output_offset
4180 - input_section->vma);
e92d460e 4181
116c20d2
NC		 4182#ifdef MY_relocatable_reloc
4183 MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
4184#endif
252b5132 4185
116c20d2
NC		 4186 if (relocation == 0)
4187 r = bfd_reloc_ok;
4188 else
4189 r = MY_relocate_contents (howto,
4190 input_bfd, relocation,
4191 contents + r_addr);
252b5132 4192 }
116c20d2
NC		 4193 else
4194 {
4195 bfd_boolean hundef;
252b5132 4196
116c20d2
NC		 4197 /* We are generating an executable, and must do a full
4198 relocation. */
4199 hundef = FALSE;
252b5132 4200
116c20d2
NC		 4201 if (r_extern)
4202 {
4203 h = sym_hashes[r_index];
252b5132 4204
116c20d2
NC		 4205 if (h != NULL
4206 && (h->root.type == bfd_link_hash_defined
4207 || h->root.type == bfd_link_hash_defweak))
4208 {
4209 relocation = (h->root.u.def.value
4210 + h->root.u.def.section->output_section->vma
4211 + h->root.u.def.section->output_offset);
4212 }
4213 else if (h != NULL
4214 && h->root.type == bfd_link_hash_undefweak)
4215 relocation = 0;
4216 else
4217 {
4218 hundef = TRUE;
4219 relocation = 0;
4220 }
4221 }
4222 else
4223 {
4224 asection *section;
252b5132 4225
116c20d2
NC		 4226 section = aout_reloc_index_to_section (input_bfd, r_index);
4227 relocation = (section->output_section->vma
4228 + section->output_offset
4229 - section->vma);
4230 if (r_pcrel)
4231 relocation += input_section->vma;
4232 }
252b5132 4233
116c20d2
NC		 4234 if (check_dynamic_reloc != NULL)
4235 {
4236 bfd_boolean skip;
252b5132 4237
116c20d2 4238 if (! ((*check_dynamic_reloc)
57402f1e 4239 (flaginfo->info, input_bfd, input_section, h,
116c20d2
NC		 4240 (void *) rel, contents, &skip, &relocation)))
4241 return FALSE;
4242 if (skip)
4243 continue;
4244 }
252b5132 4245
116c20d2 4246 /* Now warn if a global symbol is undefined. We could not
07d6d2b8
AM		 4247 do this earlier, because check_dynamic_reloc might want
4248 to skip this reloc. */
0e1862bb 4249 if (hundef && ! bfd_link_pic (flaginfo->info) && ! r_baserel)
116c20d2
NC		 4250 {
4251 const char *name;
252b5132 4252
116c20d2
NC		 4253 if (h != NULL)
4254 name = h->root.root.string;
4255 else
4256 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4257 (*flaginfo->info->callbacks->undefined_symbol)
4258 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
116c20d2 4259 }
252b5132 4260
116c20d2
NC		 4261 r = MY_final_link_relocate (howto,
4262 input_bfd, input_section,
4263 contents, r_addr, relocation,
4264 (bfd_vma) 0);
252b5132 4265 }
252b5132 4266
116c20d2
NC		 4267 if (r != bfd_reloc_ok)
4268 {
4269 switch (r)
4270 {
4271 default:
4272 case bfd_reloc_outofrange:
4273 abort ();
4274 case bfd_reloc_overflow:
4275 {
4276 const char *name;
252b5132 4277
116c20d2
NC		 4278 if (h != NULL)
4279 name = NULL;
4280 else if (r_extern)
4281 name = strings + GET_WORD (input_bfd,
4282 syms[r_index].e_strx);
4283 else
4284 {
4285 asection *s;
252b5132 4286
116c20d2 4287 s = aout_reloc_index_to_section (input_bfd, r_index);
fd361982 4288 name = bfd_section_name (s);
116c20d2 4289 }
1a72702b
AM		 4290 (*flaginfo->info->callbacks->reloc_overflow)
4291 (flaginfo->info, (h ? &h->root : NULL), name, howto->name,
4292 (bfd_vma) 0, input_bfd, input_section, r_addr);
116c20d2
NC		 4293 }
4294 break;
4295 }
4296 }
252b5132
RH		 4297 }
4298
b34976b6 4299 return TRUE;
252b5132
RH		 4300}
4301
116c20d2 4302/* Relocate an a.out section using extended a.out relocs. */
252b5132 4303
b34976b6 4304static bfd_boolean
57402f1e 4305aout_link_input_section_ext (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4306 bfd *input_bfd,
4307 asection *input_section,
4308 struct reloc_ext_external *relocs,
4309 bfd_size_type rel_size,
4310 bfd_byte *contents)
252b5132 4311{
b34976b6 4312 bfd_boolean (*check_dynamic_reloc)
116c20d2
NC		 4313 (struct bfd_link_info *, bfd *, asection *,
4314 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
4315 bfd_vma *);
252b5132 4316 bfd *output_bfd;
1049f94e 4317 bfd_boolean relocatable;
252b5132
RH		 4318 struct external_nlist *syms;
4319 char *strings;
4320 struct aout_link_hash_entry **sym_hashes;
4321 int *symbol_map;
4322 bfd_size_type reloc_count;
116c20d2
NC		 4323 struct reloc_ext_external *rel;
4324 struct reloc_ext_external *rel_end;
252b5132 4325
57402f1e 4326 output_bfd = flaginfo->output_bfd;
252b5132
RH		 4327 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
4328
116c20d2 4329 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_EXT_SIZE);
252b5132
RH		 4330 BFD_ASSERT (input_bfd->xvec->header_byteorder
4331 == output_bfd->xvec->header_byteorder);
4332
0e1862bb 4333 relocatable = bfd_link_relocatable (flaginfo->info);
252b5132
RH		 4334 syms = obj_aout_external_syms (input_bfd);
4335 strings = obj_aout_external_strings (input_bfd);
4336 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4337 symbol_map = flaginfo->symbol_map;
252b5132 4338
116c20d2 4339 reloc_count = rel_size / RELOC_EXT_SIZE;
252b5132
RH		 4340 rel = relocs;
4341 rel_end = rel + reloc_count;
4342 for (; rel < rel_end; rel++)
4343 {
4344 bfd_vma r_addr;
4345 int r_index;
4346 int r_extern;
116c20d2
NC		 4347 unsigned int r_type;
4348 bfd_vma r_addend;
252b5132 4349 struct aout_link_hash_entry *h = NULL;
116c20d2 4350 asection *r_section = NULL;
252b5132 4351 bfd_vma relocation;
252b5132
RH		 4352
4353 r_addr = GET_SWORD (input_bfd, rel->r_address);
4354
116c20d2
NC		 4355 if (bfd_header_big_endian (input_bfd))
4356 {
4357 r_index = (((unsigned int) rel->r_index[0] << 16)
4358 | ((unsigned int) rel->r_index[1] << 8)
4359 | rel->r_index[2]);
4360 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
4361 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
4362 >> RELOC_EXT_BITS_TYPE_SH_BIG);
4363 }
4364 else
4365 {
4366 r_index = (((unsigned int) rel->r_index[2] << 16)
4367 | ((unsigned int) rel->r_index[1] << 8)
4368 | rel->r_index[0]);
4369 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
4370 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
4371 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
4372 }
252b5132 4373
116c20d2 4374 r_addend = GET_SWORD (input_bfd, rel->r_addend);
252b5132 4375
ad756e3f
AM		 4376 if (r_type >= TABLE_SIZE (howto_table_ext))
4377 {
0aa13fee
AM		 4378 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4379 input_bfd, r_type);
ad756e3f
AM		 4380 bfd_set_error (bfd_error_bad_value);
4381 return FALSE;
4382 }
252b5132 4383
1049f94e 4384 if (relocatable)
252b5132 4385 {
1049f94e 4386 /* We are generating a relocatable output file, and must
252b5132 4387 modify the reloc accordingly. */
116c20d2
NC		 4388 if (r_extern
4389 || r_type == (unsigned int) RELOC_BASE10
4390 || r_type == (unsigned int) RELOC_BASE13
4391 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 4392 {
4393 /* If we know the symbol this relocation is against,
4394 convert it into a relocation against a section. This
4395 is what the native linker does. */
116c20d2
NC		 4396 if (r_type == (unsigned int) RELOC_BASE10
4397 || r_type == (unsigned int) RELOC_BASE13
4398 || r_type == (unsigned int) RELOC_BASE22)
4399 h = NULL;
4400 else
4401 h = sym_hashes[r_index];
4402 if (h != NULL
252b5132
RH		 4403 && (h->root.type == bfd_link_hash_defined
4404 || h->root.type == bfd_link_hash_defweak))
4405 {
4406 asection *output_section;
4407
4408 /* Change the r_extern value. */
4409 if (bfd_header_big_endian (output_bfd))
116c20d2 4410 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_BIG;
252b5132 4411 else
116c20d2 4412 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE;
252b5132
RH		 4413
4414 /* Compute a new r_index. */
4415 output_section = h->root.u.def.section->output_section;
4416 if (output_section == obj_textsec (output_bfd))
4417 r_index = N_TEXT;
4418 else if (output_section == obj_datasec (output_bfd))
4419 r_index = N_DATA;
4420 else if (output_section == obj_bsssec (output_bfd))
4421 r_index = N_BSS;
4422 else
4423 r_index = N_ABS;
4424
4425 /* Add the symbol value and the section VMA to the
116c20d2 4426 addend. */
252b5132
RH		 4427 relocation = (h->root.u.def.value
4428 + output_section->vma
4429 + h->root.u.def.section->output_offset);
116c20d2
NC		 4430
4431 /* Now RELOCATION is the VMA of the final
4432 destination. If this is a PC relative reloc,
4433 then ADDEND is the negative of the source VMA.
4434 We want to set ADDEND to the difference between
4435 the destination VMA and the source VMA, which
4436 means we must adjust RELOCATION by the change in
4437 the source VMA. This is done below. */
252b5132
RH		 4438 }
4439 else
4440 {
4441 /* We must change r_index according to the symbol
4442 map. */
4443 r_index = symbol_map[r_index];
4444
4445 if (r_index == -1)
4446 {
4447 if (h != NULL)
4448 {
4449 /* We decided to strip this symbol, but it
07d6d2b8
AM		 4450 turns out that we can't. Note that we
4451 lose the other and desc information here.
4452 I don't think that will ever matter for a
4453 global symbol. */
252b5132
RH		 4454 if (h->indx < 0)
4455 {
4456 h->indx = -2;
b34976b6 4457 h->written = FALSE;
7686d77d 4458 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4459 flaginfo))
b34976b6 4460 return FALSE;
252b5132
RH		 4461 }
4462 r_index = h->indx;
4463 }
4464 else
4465 {
4466 const char *name;
4467
4468 name = strings + GET_WORD (input_bfd,
4469 syms[r_index].e_strx);
1a72702b
AM		 4470 (*flaginfo->info->callbacks->unattached_reloc)
4471 (flaginfo->info, name,
4472 input_bfd, input_section, r_addr);
252b5132
RH		 4473 r_index = 0;
4474 }
4475 }
4476
4477 relocation = 0;
116c20d2
NC		 4478
4479 /* If this is a PC relative reloc, then the addend
4480 is the negative of the source VMA. We must
4481 adjust it by the change in the source VMA. This
4482 is done below. */
252b5132
RH		 4483 }
4484
4485 /* Write out the new r_index value. */
4486 if (bfd_header_big_endian (output_bfd))
4487 {
4488 rel->r_index[0] = r_index >> 16;
4489 rel->r_index[1] = r_index >> 8;
4490 rel->r_index[2] = r_index;
4491 }
4492 else
4493 {
4494 rel->r_index[2] = r_index >> 16;
4495 rel->r_index[1] = r_index >> 8;
4496 rel->r_index[0] = r_index;
4497 }
4498 }
4499 else
4500 {
252b5132
RH		 4501 /* This is a relocation against a section. We must
4502 adjust by the amount that the section moved. */
116c20d2
NC		 4503 r_section = aout_reloc_index_to_section (input_bfd, r_index);
4504 relocation = (r_section->output_section->vma
4505 + r_section->output_offset
4506 - r_section->vma);
252b5132 4507
116c20d2
NC		 4508 /* If this is a PC relative reloc, then the addend is
4509 the difference in VMA between the destination and the
4510 source. We have just adjusted for the change in VMA
4511 of the destination, so we must also adjust by the
4512 change in VMA of the source. This is done below. */
4513 }
252b5132 4514
116c20d2
NC		 4515 /* As described above, we must always adjust a PC relative
4516 reloc by the change in VMA of the source. However, if
4517 pcrel_offset is set, then the addend does not include the
4518 location within the section, in which case we don't need
4519 to adjust anything. */
4520 if (howto_table_ext[r_type].pc_relative
4521 && ! howto_table_ext[r_type].pcrel_offset)
252b5132
RH		 4522 relocation -= (input_section->output_section->vma
4523 + input_section->output_offset
4524 - input_section->vma);
4525
116c20d2
NC		 4526 /* Change the addend if necessary. */
4527 if (relocation != 0)
4528 PUT_WORD (output_bfd, r_addend + relocation, rel->r_addend);
252b5132 4529
116c20d2
NC		 4530 /* Change the address of the relocation. */
4531 PUT_WORD (output_bfd,
4532 r_addr + input_section->output_offset,
4533 rel->r_address);
252b5132
RH		 4534 }
4535 else
4536 {
b34976b6 4537 bfd_boolean hundef;
116c20d2 4538 bfd_reloc_status_type r;
252b5132
RH		 4539
4540 /* We are generating an executable, and must do a full
4541 relocation. */
b34976b6 4542 hundef = FALSE;
252b5132
RH		 4543
4544 if (r_extern)
4545 {
4546 h = sym_hashes[r_index];
4547
116c20d2 4548 if (h != NULL
252b5132
RH		 4549 && (h->root.type == bfd_link_hash_defined
4550 || h->root.type == bfd_link_hash_defweak))
4551 {
4552 relocation = (h->root.u.def.value
4553 + h->root.u.def.section->output_section->vma
4554 + h->root.u.def.section->output_offset);
4555 }
116c20d2 4556 else if (h != NULL
252b5132
RH		 4557 && h->root.type == bfd_link_hash_undefweak)
4558 relocation = 0;
4559 else
4560 {
b34976b6 4561 hundef = TRUE;
252b5132
RH		 4562 relocation = 0;
4563 }
4564 }
116c20d2
NC		 4565 else if (r_type == (unsigned int) RELOC_BASE10
4566 || r_type == (unsigned int) RELOC_BASE13
4567 || r_type == (unsigned int) RELOC_BASE22)
4568 {
4569 struct external_nlist *sym;
4570 int type;
4571
4572 /* For base relative relocs, r_index is always an index
07d6d2b8 4573 into the symbol table, even if r_extern is 0. */
116c20d2
NC		 4574 sym = syms + r_index;
4575 type = H_GET_8 (input_bfd, sym->e_type);
4576 if ((type & N_TYPE) == N_TEXT
4577 || type == N_WEAKT)
4578 r_section = obj_textsec (input_bfd);
4579 else if ((type & N_TYPE) == N_DATA
4580 || type == N_WEAKD)
4581 r_section = obj_datasec (input_bfd);
4582 else if ((type & N_TYPE) == N_BSS
4583 || type == N_WEAKB)
4584 r_section = obj_bsssec (input_bfd);
4585 else if ((type & N_TYPE) == N_ABS
4586 || type == N_WEAKA)
4587 r_section = bfd_abs_section_ptr;
4588 else
4589 abort ();
4590 relocation = (r_section->output_section->vma
4591 + r_section->output_offset
4592 + (GET_WORD (input_bfd, sym->e_value)
4593 - r_section->vma));
4594 }
252b5132
RH		 4595 else
4596 {
116c20d2 4597 r_section = aout_reloc_index_to_section (input_bfd, r_index);
252b5132 4598
116c20d2
NC		 4599 /* If this is a PC relative reloc, then R_ADDEND is the
4600 difference between the two vmas, or
4601 old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
4602 where
4603 old_dest_sec == section->vma
4604 and
4605 old_src_sec == input_section->vma
4606 and
4607 old_src_off == r_addr
4608
4609 _bfd_final_link_relocate expects RELOCATION +
4610 R_ADDEND to be the VMA of the destination minus
4611 r_addr (the minus r_addr is because this relocation
4612 is not pcrel_offset, which is a bit confusing and
4613 should, perhaps, be changed), or
4614 new_dest_sec
4615 where
4616 new_dest_sec == output_section->vma + output_offset
4617 We arrange for this to happen by setting RELOCATION to
4618 new_dest_sec + old_src_sec - old_dest_sec
4619
4620 If this is not a PC relative reloc, then R_ADDEND is
4621 simply the VMA of the destination, so we set
4622 RELOCATION to the change in the destination VMA, or
4623 new_dest_sec - old_dest_sec
4624 */
4625 relocation = (r_section->output_section->vma
4626 + r_section->output_offset
4627 - r_section->vma);
4628 if (howto_table_ext[r_type].pc_relative)
252b5132
RH		 4629 relocation += input_section->vma;
4630 }
4631
4632 if (check_dynamic_reloc != NULL)
4633 {
b34976b6 4634 bfd_boolean skip;
252b5132
RH		 4635
4636 if (! ((*check_dynamic_reloc)
57402f1e 4637 (flaginfo->info, input_bfd, input_section, h,
116c20d2 4638 (void *) rel, contents, &skip, &relocation)))
b34976b6 4639 return FALSE;
252b5132
RH		 4640 if (skip)
4641 continue;
4642 }
4643
4644 /* Now warn if a global symbol is undefined. We could not
07d6d2b8
AM		 4645 do this earlier, because check_dynamic_reloc might want
4646 to skip this reloc. */
116c20d2 4647 if (hundef
0e1862bb 4648 && ! bfd_link_pic (flaginfo->info)
116c20d2
NC		 4649 && r_type != (unsigned int) RELOC_BASE10
4650 && r_type != (unsigned int) RELOC_BASE13
4651 && r_type != (unsigned int) RELOC_BASE22)
252b5132
RH		 4652 {
4653 const char *name;
4654
4655 if (h != NULL)
4656 name = h->root.root.string;
4657 else
4658 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4659 (*flaginfo->info->callbacks->undefined_symbol)
4660 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
252b5132
RH		 4661 }
4662
116c20d2
NC		 4663 if (r_type != (unsigned int) RELOC_SPARC_REV32)
4664 r = MY_final_link_relocate (howto_table_ext + r_type,
4665 input_bfd, input_section,
4666 contents, r_addr, relocation,
4667 r_addend);
4668 else
252b5132 4669 {
116c20d2 4670 bfd_vma x;
252b5132 4671
116c20d2
NC		 4672 x = bfd_get_32 (input_bfd, contents + r_addr);
4673 x = x + relocation + r_addend;
4674 bfd_putl32 (/*input_bfd,*/ x, contents + r_addr);
4675 r = bfd_reloc_ok;
4676 }
4677
4678 if (r != bfd_reloc_ok)
4679 {
4680 switch (r)
4681 {
4682 default:
4683 case bfd_reloc_outofrange:
4684 abort ();
4685 case bfd_reloc_overflow:
252b5132 4686 {
116c20d2 4687 const char *name;
252b5132 4688
116c20d2
NC		 4689 if (h != NULL)
4690 name = NULL;
4691 else if (r_extern
4692 || r_type == (unsigned int) RELOC_BASE10
4693 || r_type == (unsigned int) RELOC_BASE13
4694 || r_type == (unsigned int) RELOC_BASE22)
4695 name = strings + GET_WORD (input_bfd,
4696 syms[r_index].e_strx);
4697 else
4698 {
4699 asection *s;
4700
4701 s = aout_reloc_index_to_section (input_bfd, r_index);
fd361982 4702 name = bfd_section_name (s);
116c20d2 4703 }
1a72702b
AM		 4704 (*flaginfo->info->callbacks->reloc_overflow)
4705 (flaginfo->info, (h ? &h->root : NULL), name,
4706 howto_table_ext[r_type].name,
4707 r_addend, input_bfd, input_section, r_addr);
252b5132 4708 }
116c20d2
NC		 4709 break;
4710 }
252b5132
RH		 4711 }
4712 }
4713 }
4714
b34976b6 4715 return TRUE;
252b5132
RH		 4716}
4717
116c20d2
NC		 4718/* Link an a.out section into the output file. */
4719
4720static bfd_boolean
57402f1e 4721aout_link_input_section (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4722 bfd *input_bfd,
4723 asection *input_section,
4724 file_ptr *reloff_ptr,
4725 bfd_size_type rel_size)
4726{
4727 bfd_size_type input_size;
4728 void * relocs;
4729
4730 /* Get the section contents. */
4731 input_size = input_section->size;
4732 if (! bfd_get_section_contents (input_bfd, input_section,
57402f1e 4733 (void *) flaginfo->contents,
116c20d2
NC		 4734 (file_ptr) 0, input_size))
4735 return FALSE;
4736
4737 /* Read in the relocs if we haven't already done it. */
4738 if (aout_section_data (input_section) != NULL
4739 && aout_section_data (input_section)->relocs != NULL)
4740 relocs = aout_section_data (input_section)->relocs;
4741 else
4742 {
57402f1e 4743 relocs = flaginfo->relocs;
116c20d2
NC		 4744 if (rel_size > 0)
4745 {
4746 if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
4747 || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
4748 return FALSE;
4749 }
4750 }
4751
4752 /* Relocate the section contents. */
4753 if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE)
4754 {
57402f1e 4755 if (! aout_link_input_section_std (flaginfo, input_bfd, input_section,
116c20d2 4756 (struct reloc_std_external *) relocs,
57402f1e 4757 rel_size, flaginfo->contents))
116c20d2
NC		 4758 return FALSE;
4759 }
4760 else
4761 {
57402f1e 4762 if (! aout_link_input_section_ext (flaginfo, input_bfd, input_section,
116c20d2 4763 (struct reloc_ext_external *) relocs,
57402f1e 4764 rel_size, flaginfo->contents))
116c20d2
NC		 4765 return FALSE;
4766 }
4767
4768 /* Write out the section contents. */
57402f1e 4769 if (! bfd_set_section_contents (flaginfo->output_bfd,
116c20d2 4770 input_section->output_section,
57402f1e 4771 (void *) flaginfo->contents,
116c20d2
NC		 4772 (file_ptr) input_section->output_offset,
4773 input_size))
4774 return FALSE;
4775
4776 /* If we are producing relocatable output, the relocs were
4777 modified, and we now write them out. */
0e1862bb 4778 if (bfd_link_relocatable (flaginfo->info) && rel_size > 0)
116c20d2 4779 {
57402f1e 4780 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
116c20d2 4781 return FALSE;
57402f1e 4782 if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size)
116c20d2
NC		 4783 return FALSE;
4784 *reloff_ptr += rel_size;
4785
4786 /* Assert that the relocs have not run into the symbols, and
4787 that if these are the text relocs they have not run into the
4788 data relocs. */
57402f1e
NC		 4789 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
4790 && (reloff_ptr != &flaginfo->treloff
116c20d2 4791 || (*reloff_ptr
57402f1e 4792 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 4793 }
4794
4795 return TRUE;
4796}
4797
4798/* Adjust and write out the symbols for an a.out file. Set the new
4799 symbol indices into a symbol_map. */
252b5132 4800
b34976b6 4801static bfd_boolean
57402f1e 4802aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd)
252b5132 4803{
252b5132 4804 bfd *output_bfd;
116c20d2 4805 bfd_size_type sym_count;
252b5132 4806 char *strings;
116c20d2
NC		 4807 enum bfd_link_strip strip;
4808 enum bfd_link_discard discard;
4809 struct external_nlist *outsym;
4810 bfd_size_type strtab_index;
4811 struct external_nlist *sym;
4812 struct external_nlist *sym_end;
4813 struct aout_link_hash_entry **sym_hash;
252b5132 4814 int *symbol_map;
116c20d2
NC		 4815 bfd_boolean pass;
4816 bfd_boolean skip_next;
252b5132 4817
57402f1e 4818 output_bfd = flaginfo->output_bfd;
116c20d2
NC		 4819 sym_count = obj_aout_external_sym_count (input_bfd);
4820 strings = obj_aout_external_strings (input_bfd);
57402f1e
NC		 4821 strip = flaginfo->info->strip;
4822 discard = flaginfo->info->discard;
4823 outsym = flaginfo->output_syms;
252b5132 4824
116c20d2
NC		 4825 /* First write out a symbol for this object file, unless we are
4826 discarding such symbols. */
4827 if (strip != strip_all
4828 && (strip != strip_some
57402f1e 4829 || bfd_hash_lookup (flaginfo->info->keep_hash, input_bfd->filename,
116c20d2
NC		 4830 FALSE, FALSE) != NULL)
4831 && discard != discard_all)
4832 {
4833 H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
4834 H_PUT_8 (output_bfd, 0, outsym->e_other);
4835 H_PUT_16 (output_bfd, 0, outsym->e_desc);
57402f1e 4836 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 4837 input_bfd->filename, FALSE);
4838 if (strtab_index == (bfd_size_type) -1)
4839 return FALSE;
4840 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
4841 PUT_WORD (output_bfd,
fd361982 4842 (bfd_section_vma (obj_textsec (input_bfd)->output_section)
116c20d2
NC		 4843 + obj_textsec (input_bfd)->output_offset),
4844 outsym->e_value);
4845 ++obj_aout_external_sym_count (output_bfd);
4846 ++outsym;
4847 }
252b5132 4848
116c20d2
NC		 4849 pass = FALSE;
4850 skip_next = FALSE;
4851 sym = obj_aout_external_syms (input_bfd);
4852 sym_end = sym + sym_count;
4853 sym_hash = obj_aout_sym_hashes (input_bfd);
57402f1e 4854 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4855 memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map);
4856 for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
252b5132 4857 {
116c20d2
NC		 4858 const char *name;
4859 int type;
4860 struct aout_link_hash_entry *h;
4861 bfd_boolean skip;
4862 asection *symsec;
4863 bfd_vma val = 0;
4864 bfd_boolean copy;
252b5132 4865
116c20d2 4866 /* We set *symbol_map to 0 above for all symbols. If it has
07d6d2b8
AM		 4867 already been set to -1 for this symbol, it means that we are
4868 discarding it because it appears in a duplicate header file.
4869 See the N_BINCL code below. */
116c20d2
NC		 4870 if (*symbol_map == -1)
4871 continue;
252b5132 4872
116c20d2 4873 /* Initialize *symbol_map to -1, which means that the symbol was
07d6d2b8
AM		 4874 not copied into the output file. We will change it later if
4875 we do copy the symbol over. */
116c20d2
NC		 4876 *symbol_map = -1;
4877
4878 type = H_GET_8 (input_bfd, sym->e_type);
4879 name = strings + GET_WORD (input_bfd, sym->e_strx);
4880
4881 h = NULL;
4882
4883 if (pass)
252b5132 4884 {
116c20d2
NC		 4885 /* Pass this symbol through. It is the target of an
4886 indirect or warning symbol. */
4887 val = GET_WORD (input_bfd, sym->e_value);
4888 pass = FALSE;
252b5132 4889 }
116c20d2 4890 else if (skip_next)
252b5132 4891 {
116c20d2
NC		 4892 /* Skip this symbol, which is the target of an indirect
4893 symbol that we have changed to no longer be an indirect
4894 symbol. */
4895 skip_next = FALSE;
4896 continue;
252b5132 4897 }
116c20d2
NC		 4898 else
4899 {
4900 struct aout_link_hash_entry *hresolve;
252b5132 4901
116c20d2
NC		 4902 /* We have saved the hash table entry for this symbol, if
4903 there is one. Note that we could just look it up again
4904 in the hash table, provided we first check that it is an
4905 external symbol. */
4906 h = *sym_hash;
252b5132 4907
116c20d2 4908 /* Use the name from the hash table, in case the symbol was
07d6d2b8 4909 wrapped. */
116c20d2
NC		 4910 if (h != NULL
4911 && h->root.type != bfd_link_hash_warning)
4912 name = h->root.root.string;
252b5132 4913
116c20d2
NC		 4914 /* If this is an indirect or warning symbol, then change
4915 hresolve to the base symbol. We also change *sym_hash so
4916 that the relocation routines relocate against the real
4917 symbol. */
4918 hresolve = h;
4919 if (h != (struct aout_link_hash_entry *) NULL
4920 && (h->root.type == bfd_link_hash_indirect
4921 || h->root.type == bfd_link_hash_warning))
252b5132 4922 {
116c20d2
NC		 4923 hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
4924 while (hresolve->root.type == bfd_link_hash_indirect
4925 || hresolve->root.type == bfd_link_hash_warning)
4926 hresolve = ((struct aout_link_hash_entry *)
4927 hresolve->root.u.i.link);
4928 *sym_hash = hresolve;
4929 }
4930
4931 /* If the symbol has already been written out, skip it. */
4932 if (h != NULL
4933 && h->written)
4934 {
4935 if ((type & N_TYPE) == N_INDR
4936 || type == N_WARNING)
4937 skip_next = TRUE;
4938 *symbol_map = h->indx;
4939 continue;
4940 }
4941
4942 /* See if we are stripping this symbol. */
4943 skip = FALSE;
4944 switch (strip)
4945 {
4946 case strip_none:
4947 break;
4948 case strip_debugger:
4949 if ((type & N_STAB) != 0)
4950 skip = TRUE;
4951 break;
4952 case strip_some:
57402f1e 4953 if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE)
116c20d2
NC		 4954 == NULL)
4955 skip = TRUE;
4956 break;
4957 case strip_all:
4958 skip = TRUE;
4959 break;
4960 }
4961 if (skip)
4962 {
4963 if (h != NULL)
4964 h->written = TRUE;
4965 continue;
4966 }
4967
4968 /* Get the value of the symbol. */
4969 if ((type & N_TYPE) == N_TEXT
4970 || type == N_WEAKT)
4971 symsec = obj_textsec (input_bfd);
4972 else if ((type & N_TYPE) == N_DATA
4973 || type == N_WEAKD)
4974 symsec = obj_datasec (input_bfd);
4975 else if ((type & N_TYPE) == N_BSS
4976 || type == N_WEAKB)
4977 symsec = obj_bsssec (input_bfd);
4978 else if ((type & N_TYPE) == N_ABS
4979 || type == N_WEAKA)
4980 symsec = bfd_abs_section_ptr;
4981 else if (((type & N_TYPE) == N_INDR
4982 && (hresolve == NULL
4983 || (hresolve->root.type != bfd_link_hash_defined
4984 && hresolve->root.type != bfd_link_hash_defweak
4985 && hresolve->root.type != bfd_link_hash_common)))
4986 || type == N_WARNING)
4987 {
4988 /* Pass the next symbol through unchanged. The
4989 condition above for indirect symbols is so that if
4990 the indirect symbol was defined, we output it with
4991 the correct definition so the debugger will
4992 understand it. */
4993 pass = TRUE;
4994 val = GET_WORD (input_bfd, sym->e_value);
4995 symsec = NULL;
4996 }
4997 else if ((type & N_STAB) != 0)
4998 {
4999 val = GET_WORD (input_bfd, sym->e_value);
5000 symsec = NULL;
5001 }
5002 else
5003 {
5004 /* If we get here with an indirect symbol, it means that
5005 we are outputting it with a real definition. In such
5006 a case we do not want to output the next symbol,
5007 which is the target of the indirection. */
5008 if ((type & N_TYPE) == N_INDR)
5009 skip_next = TRUE;
5010
5011 symsec = NULL;
5012
5013 /* We need to get the value from the hash table. We use
5014 hresolve so that if we have defined an indirect
5015 symbol we output the final definition. */
5016 if (h == NULL)
5017 {
5018 switch (type & N_TYPE)
5019 {
5020 case N_SETT:
5021 symsec = obj_textsec (input_bfd);
5022 break;
5023 case N_SETD:
5024 symsec = obj_datasec (input_bfd);
5025 break;
5026 case N_SETB:
5027 symsec = obj_bsssec (input_bfd);
5028 break;
5029 case N_SETA:
5030 symsec = bfd_abs_section_ptr;
5031 break;
5032 default:
5033 val = 0;
5034 break;
5035 }
5036 }
5037 else if (hresolve->root.type == bfd_link_hash_defined
5038 || hresolve->root.type == bfd_link_hash_defweak)
252b5132 5039 {
116c20d2 5040 asection *input_section;
252b5132
RH		 5041 asection *output_section;
5042
116c20d2
NC		 5043 /* This case usually means a common symbol which was
5044 turned into a defined symbol. */
5045 input_section = hresolve->root.u.def.section;
5046 output_section = input_section->output_section;
5047 BFD_ASSERT (bfd_is_abs_section (output_section)
5048 || output_section->owner == output_bfd);
5049 val = (hresolve->root.u.def.value
fd361982 5050 + bfd_section_vma (output_section)
116c20d2
NC		 5051 + input_section->output_offset);
5052
5053 /* Get the correct type based on the section. If
5054 this is a constructed set, force it to be
5055 globally visible. */
5056 if (type == N_SETT
5057 || type == N_SETD
5058 || type == N_SETB
5059 || type == N_SETA)
5060 type |= N_EXT;
5061
5062 type &=~ N_TYPE;
252b5132 5063
252b5132 5064 if (output_section == obj_textsec (output_bfd))
116c20d2
NC		 5065 type |= (hresolve->root.type == bfd_link_hash_defined
5066 ? N_TEXT
5067 : N_WEAKT);
252b5132 5068 else if (output_section == obj_datasec (output_bfd))
116c20d2
NC		 5069 type |= (hresolve->root.type == bfd_link_hash_defined
5070 ? N_DATA
5071 : N_WEAKD);
252b5132 5072 else if (output_section == obj_bsssec (output_bfd))
116c20d2
NC		 5073 type |= (hresolve->root.type == bfd_link_hash_defined
5074 ? N_BSS
5075 : N_WEAKB);
252b5132 5076 else
116c20d2
NC		 5077 type |= (hresolve->root.type == bfd_link_hash_defined
5078 ? N_ABS
5079 : N_WEAKA);
5080 }
5081 else if (hresolve->root.type == bfd_link_hash_common)
5082 val = hresolve->root.u.c.size;
5083 else if (hresolve->root.type == bfd_link_hash_undefweak)
5084 {
5085 val = 0;
5086 type = N_WEAKU;
252b5132
RH		 5087 }
5088 else
116c20d2
NC		 5089 val = 0;
5090 }
5091 if (symsec != NULL)
5092 val = (symsec->output_section->vma
5093 + symsec->output_offset
5094 + (GET_WORD (input_bfd, sym->e_value)
5095 - symsec->vma));
5096
5097 /* If this is a global symbol set the written flag, and if
5098 it is a local symbol see if we should discard it. */
5099 if (h != NULL)
5100 {
5101 h->written = TRUE;
5102 h->indx = obj_aout_external_sym_count (output_bfd);
5103 }
5104 else if ((type & N_TYPE) != N_SETT
5105 && (type & N_TYPE) != N_SETD
5106 && (type & N_TYPE) != N_SETB
5107 && (type & N_TYPE) != N_SETA)
5108 {
5109 switch (discard)
252b5132 5110 {
116c20d2
NC		 5111 case discard_none:
5112 case discard_sec_merge:
5113 break;
5114 case discard_l:
5115 if ((type & N_STAB) == 0
5116 && bfd_is_local_label_name (input_bfd, name))
5117 skip = TRUE;
5118 break;
5119 case discard_all:
5120 skip = TRUE;
5121 break;
5122 }
5123 if (skip)
5124 {
5125 pass = FALSE;
5126 continue;
5127 }
5128 }
252b5132 5129
116c20d2
NC		 5130 /* An N_BINCL symbol indicates the start of the stabs
5131 entries for a header file. We need to scan ahead to the
5132 next N_EINCL symbol, ignoring nesting, adding up all the
5133 characters in the symbol names, not including the file
5134 numbers in types (the first number after an open
5135 parenthesis). */
5136 if (type == (int) N_BINCL)
5137 {
5138 struct external_nlist *incl_sym;
5139 int nest;
5140 struct aout_link_includes_entry *incl_entry;
5141 struct aout_link_includes_totals *t;
5142
5143 val = 0;
5144 nest = 0;
5145 for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
5146 {
5147 int incl_type;
5148
5149 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5150 if (incl_type == (int) N_EINCL)
252b5132 5151 {
116c20d2
NC		 5152 if (nest == 0)
5153 break;
5154 --nest;
5155 }
5156 else if (incl_type == (int) N_BINCL)
5157 ++nest;
5158 else if (nest == 0)
5159 {
5160 const char *s;
5161
5162 s = strings + GET_WORD (input_bfd, incl_sym->e_strx);
5163 for (; *s != '\0'; s++)
252b5132 5164 {
116c20d2
NC		 5165 val += *s;
5166 if (*s == '(')
252b5132 5167 {
116c20d2
NC		 5168 /* Skip the file number. */
5169 ++s;
5170 while (ISDIGIT (*s))
5171 ++s;
5172 --s;
252b5132 5173 }
252b5132 5174 }
116c20d2
NC		 5175 }
5176 }
252b5132 5177
116c20d2 5178 /* If we have already included a header file with the
07d6d2b8
AM		 5179 same value, then replace this one with an N_EXCL
5180 symbol. */
57402f1e
NC		 5181 copy = (bfd_boolean) (! flaginfo->info->keep_memory);
5182 incl_entry = aout_link_includes_lookup (&flaginfo->includes,
116c20d2
NC		 5183 name, TRUE, copy);
5184 if (incl_entry == NULL)
5185 return FALSE;
5186 for (t = incl_entry->totals; t != NULL; t = t->next)
5187 if (t->total == val)
5188 break;
5189 if (t == NULL)
5190 {
5191 /* This is the first time we have seen this header
07d6d2b8 5192 file with this set of stabs strings. */
a50b1753 5193 t = (struct aout_link_includes_totals *)
07d6d2b8 5194 bfd_hash_allocate (&flaginfo->includes.root,
116c20d2
NC		 5195 sizeof *t);
5196 if (t == NULL)
5197 return FALSE;
5198 t->total = val;
5199 t->next = incl_entry->totals;
5200 incl_entry->totals = t;
5201 }
5202 else
5203 {
5204 int *incl_map;
5205
5206 /* This is a duplicate header file. We must change
07d6d2b8
AM		 5207 it to be an N_EXCL entry, and mark all the
5208 included symbols to prevent outputting them. */
116c20d2
NC		 5209 type = (int) N_EXCL;
5210
5211 nest = 0;
5212 for (incl_sym = sym + 1, incl_map = symbol_map + 1;
5213 incl_sym < sym_end;
5214 incl_sym++, incl_map++)
5215 {
5216 int incl_type;
5217
5218 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5219 if (incl_type == (int) N_EINCL)
5220 {
5221 if (nest == 0)
5222 {
5223 *incl_map = -1;
5224 break;
5225 }
5226 --nest;
252b5132 5227 }
116c20d2
NC		 5228 else if (incl_type == (int) N_BINCL)
5229 ++nest;
5230 else if (nest == 0)
5231 *incl_map = -1;
252b5132 5232 }
252b5132
RH		 5233 }
5234 }
116c20d2
NC		 5235 }
5236
5237 /* Copy this symbol into the list of symbols we are going to
5238 write out. */
5239 H_PUT_8 (output_bfd, type, outsym->e_type);
5240 H_PUT_8 (output_bfd, H_GET_8 (input_bfd, sym->e_other), outsym->e_other);
5241 H_PUT_16 (output_bfd, H_GET_16 (input_bfd, sym->e_desc), outsym->e_desc);
5242 copy = FALSE;
57402f1e 5243 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5244 {
5245 /* name points into a string table which we are going to
5246 free. If there is a hash table entry, use that string.
5247 Otherwise, copy name into memory. */
5248 if (h != NULL)
5249 name = h->root.root.string;
252b5132 5250 else
116c20d2
NC		 5251 copy = TRUE;
5252 }
57402f1e 5253 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 5254 name, copy);
5255 if (strtab_index == (bfd_size_type) -1)
5256 return FALSE;
5257 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
5258 PUT_WORD (output_bfd, val, outsym->e_value);
5259 *symbol_map = obj_aout_external_sym_count (output_bfd);
5260 ++obj_aout_external_sym_count (output_bfd);
5261 ++outsym;
5262 }
252b5132 5263
116c20d2 5264 /* Write out the output symbols we have just constructed. */
57402f1e 5265 if (outsym > flaginfo->output_syms)
116c20d2
NC		 5266 {
5267 bfd_size_type outsym_size;
252b5132 5268
57402f1e 5269 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0)
116c20d2 5270 return FALSE;
57402f1e 5271 outsym_size = outsym - flaginfo->output_syms;
116c20d2 5272 outsym_size *= EXTERNAL_NLIST_SIZE;
57402f1e 5273 if (bfd_bwrite ((void *) flaginfo->output_syms, outsym_size, output_bfd)
116c20d2
NC		 5274 != outsym_size)
5275 return FALSE;
57402f1e 5276 flaginfo->symoff += outsym_size;
116c20d2 5277 }
252b5132 5278
116c20d2
NC		 5279 return TRUE;
5280}
252b5132 5281
116c20d2 5282/* Link an a.out input BFD into the output file. */
252b5132 5283
116c20d2 5284static bfd_boolean
57402f1e 5285aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd)
116c20d2 5286{
116c20d2 5287 BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
252b5132 5288
116c20d2
NC		 5289 /* If this is a dynamic object, it may need special handling. */
5290 if ((input_bfd->flags & DYNAMIC) != 0
5291 && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
5292 return ((*aout_backend_info (input_bfd)->link_dynamic_object)
57402f1e 5293 (flaginfo->info, input_bfd));
252b5132 5294
116c20d2 5295 /* Get the symbols. We probably have them already, unless
57402f1e 5296 flaginfo->info->keep_memory is FALSE. */
116c20d2
NC		 5297 if (! aout_get_external_symbols (input_bfd))
5298 return FALSE;
252b5132 5299
116c20d2 5300 /* Write out the symbols and get a map of the new indices. The map
57402f1e
NC		 5301 is placed into flaginfo->symbol_map. */
5302 if (! aout_link_write_symbols (flaginfo, input_bfd))
116c20d2 5303 return FALSE;
252b5132 5304
116c20d2
NC		 5305 /* Relocate and write out the sections. These functions use the
5306 symbol map created by aout_link_write_symbols. The linker_mark
5307 field will be set if these sections are to be included in the
5308 link, which will normally be the case. */
5309 if (obj_textsec (input_bfd)->linker_mark)
5310 {
57402f1e 5311 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5312 obj_textsec (input_bfd),
57402f1e 5313 &flaginfo->treloff,
116c20d2
NC		 5314 exec_hdr (input_bfd)->a_trsize))
5315 return FALSE;
5316 }
5317 if (obj_datasec (input_bfd)->linker_mark)
5318 {
57402f1e 5319 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5320 obj_datasec (input_bfd),
57402f1e 5321 &flaginfo->dreloff,
116c20d2
NC		 5322 exec_hdr (input_bfd)->a_drsize))
5323 return FALSE;
5324 }
5325
5326 /* If we are not keeping memory, we don't need the symbols any
5327 longer. We still need them if we are keeping memory, because the
5328 strings in the hash table point into them. */
57402f1e 5329 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5330 {
5331 if (! aout_link_free_symbols (input_bfd))
5332 return FALSE;
5333 }
5334
5335 return TRUE;
5336}
5337
5338/* Do the final link step. This is called on the output BFD. The
5339 INFO structure should point to a list of BFDs linked through the
c72f2fb2 5340 link.next field which can be used to find each BFD which takes part
116c20d2
NC		 5341 in the output. Also, each section in ABFD should point to a list
5342 of bfd_link_order structures which list all the input sections for
5343 the output section. */
5344
5345bfd_boolean
5346NAME (aout, final_link) (bfd *abfd,
5347 struct bfd_link_info *info,
5348 void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *))
5349{
5350 struct aout_final_link_info aout_info;
5351 bfd_boolean includes_hash_initialized = FALSE;
5352 bfd *sub;
5353 bfd_size_type trsize, drsize;
5354 bfd_size_type max_contents_size;
5355 bfd_size_type max_relocs_size;
5356 bfd_size_type max_sym_count;
116c20d2
NC		 5357 struct bfd_link_order *p;
5358 asection *o;
5359 bfd_boolean have_link_order_relocs;
5360
0e1862bb 5361 if (bfd_link_pic (info))
116c20d2
NC		 5362 abfd->flags |= DYNAMIC;
5363
5364 aout_info.info = info;
5365 aout_info.output_bfd = abfd;
5366 aout_info.contents = NULL;
5367 aout_info.relocs = NULL;
5368 aout_info.symbol_map = NULL;
5369 aout_info.output_syms = NULL;
252b5132 5370
66eb6687
AM		 5371 if (!bfd_hash_table_init_n (&aout_info.includes.root,
5372 aout_link_includes_newfunc,
5373 sizeof (struct aout_link_includes_entry),
5374 251))
116c20d2
NC		 5375 goto error_return;
5376 includes_hash_initialized = TRUE;
252b5132 5377
116c20d2
NC		 5378 /* Figure out the largest section size. Also, if generating
5379 relocatable output, count the relocs. */
5380 trsize = 0;
5381 drsize = 0;
5382 max_contents_size = 0;
5383 max_relocs_size = 0;
5384 max_sym_count = 0;
c72f2fb2 5385 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2
NC		 5386 {
5387 bfd_size_type sz;
252b5132 5388
0e1862bb 5389 if (bfd_link_relocatable (info))
116c20d2
NC		 5390 {
5391 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
252b5132 5392 {
116c20d2
NC		 5393 trsize += exec_hdr (sub)->a_trsize;
5394 drsize += exec_hdr (sub)->a_drsize;
252b5132 5395 }
252b5132
RH		 5396 else
5397 {
116c20d2
NC		 5398 /* FIXME: We need to identify the .text and .data sections
5399 and call get_reloc_upper_bound and canonicalize_reloc to
5400 work out the number of relocs needed, and then multiply
5401 by the reloc size. */
4eca0228 5402 _bfd_error_handler
695344c0 5403 /* xgettext:c-format */
871b3ab2 5404 (_("%pB: relocatable link from %s to %s not supported"),
dae82561 5405 abfd, sub->xvec->name, abfd->xvec->name);
116c20d2
NC		 5406 bfd_set_error (bfd_error_invalid_operation);
5407 goto error_return;
252b5132 5408 }
116c20d2 5409 }
252b5132 5410
116c20d2
NC		 5411 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
5412 {
5413 sz = obj_textsec (sub)->size;
5414 if (sz > max_contents_size)
5415 max_contents_size = sz;
5416 sz = obj_datasec (sub)->size;
5417 if (sz > max_contents_size)
5418 max_contents_size = sz;
252b5132 5419
116c20d2
NC		 5420 sz = exec_hdr (sub)->a_trsize;
5421 if (sz > max_relocs_size)
5422 max_relocs_size = sz;
5423 sz = exec_hdr (sub)->a_drsize;
5424 if (sz > max_relocs_size)
5425 max_relocs_size = sz;
252b5132 5426
116c20d2
NC		 5427 sz = obj_aout_external_sym_count (sub);
5428 if (sz > max_sym_count)
5429 max_sym_count = sz;
252b5132
RH		 5430 }
5431 }
5432
0e1862bb 5433 if (bfd_link_relocatable (info))
116c20d2
NC		 5434 {
5435 if (obj_textsec (abfd) != NULL)
5436 trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
8423293d 5437 ->map_head.link_order)
116c20d2
NC		 5438 * obj_reloc_entry_size (abfd));
5439 if (obj_datasec (abfd) != NULL)
5440 drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
8423293d 5441 ->map_head.link_order)
116c20d2
NC		 5442 * obj_reloc_entry_size (abfd));
5443 }
252b5132 5444
116c20d2
NC		 5445 exec_hdr (abfd)->a_trsize = trsize;
5446 exec_hdr (abfd)->a_drsize = drsize;
252b5132 5447
116c20d2 5448 exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
252b5132 5449
116c20d2
NC		 5450 /* Adjust the section sizes and vmas according to the magic number.
5451 This sets a_text, a_data and a_bss in the exec_hdr and sets the
5452 filepos for each section. */
3a8c4a5b 5453 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
116c20d2 5454 goto error_return;
252b5132 5455
116c20d2
NC		 5456 /* The relocation and symbol file positions differ among a.out
5457 targets. We are passed a callback routine from the backend
5458 specific code to handle this.
5459 FIXME: At this point we do not know how much space the symbol
5460 table will require. This will not work for any (nonstandard)
5461 a.out target that needs to know the symbol table size before it
dc12032b 5462 can compute the relocation file positions. */
116c20d2
NC		 5463 (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
5464 &aout_info.symoff);
5465 obj_textsec (abfd)->rel_filepos = aout_info.treloff;
5466 obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
5467 obj_sym_filepos (abfd) = aout_info.symoff;
252b5132 5468
116c20d2
NC		 5469 /* We keep a count of the symbols as we output them. */
5470 obj_aout_external_sym_count (abfd) = 0;
5471
5472 /* We accumulate the string table as we write out the symbols. */
5473 aout_info.strtab = _bfd_stringtab_init ();
5474 if (aout_info.strtab == NULL)
5475 goto error_return;
5476
5477 /* Allocate buffers to hold section contents and relocs. */
a50b1753 5478 aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
116c20d2 5479 aout_info.relocs = bfd_malloc (max_relocs_size);
c38eb2a6 5480 aout_info.symbol_map = (int *) bfd_malloc (max_sym_count * sizeof (int));
a50b1753
NC		 5481 aout_info.output_syms = (struct external_nlist *)
5482 bfd_malloc ((max_sym_count + 1) * sizeof (struct external_nlist));
116c20d2
NC		 5483 if ((aout_info.contents == NULL && max_contents_size != 0)
5484 || (aout_info.relocs == NULL && max_relocs_size != 0)
5485 || (aout_info.symbol_map == NULL && max_sym_count != 0)
5486 || aout_info.output_syms == NULL)
5487 goto error_return;
5488
5489 /* If we have a symbol named __DYNAMIC, force it out now. This is
5490 required by SunOS. Doing this here rather than in sunos.c is a
5491 hack, but it's easier than exporting everything which would be
5492 needed. */
5493 {
5494 struct aout_link_hash_entry *h;
5495
5496 h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
5497 FALSE, FALSE, FALSE);
5498 if (h != NULL)
7686d77d 5499 aout_link_write_other_symbol (&h->root.root, &aout_info);
116c20d2
NC		 5500 }
5501
5502 /* The most time efficient way to do the link would be to read all
5503 the input object files into memory and then sort out the
5504 information into the output file. Unfortunately, that will
5505 probably use too much memory. Another method would be to step
5506 through everything that composes the text section and write it
5507 out, and then everything that composes the data section and write
5508 it out, and then write out the relocs, and then write out the
5509 symbols. Unfortunately, that requires reading stuff from each
5510 input file several times, and we will not be able to keep all the
5511 input files open simultaneously, and reopening them will be slow.
5512
5513 What we do is basically process one input file at a time. We do
5514 everything we need to do with an input file once--copy over the
5515 section contents, handle the relocation information, and write
5516 out the symbols--and then we throw away the information we read
5517 from it. This approach requires a lot of lseeks of the output
5518 file, which is unfortunate but still faster than reopening a lot
5519 of files.
5520
5521 We use the output_has_begun field of the input BFDs to see
5522 whether we have already handled it. */
c72f2fb2 5523 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2 5524 sub->output_has_begun = FALSE;
252b5132 5525
116c20d2
NC		 5526 /* Mark all sections which are to be included in the link. This
5527 will normally be every section. We need to do this so that we
5528 can identify any sections which the linker has decided to not
5529 include. */
5530 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5531 {
8423293d 5532 for (p = o->map_head.link_order; p != NULL; p = p->next)
116c20d2
NC		 5533 if (p->type == bfd_indirect_link_order)
5534 p->u.indirect.section->linker_mark = TRUE;
252b5132
RH		 5535 }
5536
116c20d2
NC		 5537 have_link_order_relocs = FALSE;
5538 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5539 {
8423293d 5540 for (p = o->map_head.link_order;
116c20d2
NC		 5541 p != NULL;
5542 p = p->next)
252b5132 5543 {
116c20d2
NC		 5544 if (p->type == bfd_indirect_link_order
5545 && (bfd_get_flavour (p->u.indirect.section->owner)
5546 == bfd_target_aout_flavour))
252b5132 5547 {
116c20d2
NC		 5548 bfd *input_bfd;
5549
5550 input_bfd = p->u.indirect.section->owner;
5551 if (! input_bfd->output_has_begun)
252b5132 5552 {
116c20d2
NC		 5553 if (! aout_link_input_bfd (&aout_info, input_bfd))
5554 goto error_return;
5555 input_bfd->output_has_begun = TRUE;
252b5132 5556 }
252b5132 5557 }
116c20d2
NC		 5558 else if (p->type == bfd_section_reloc_link_order
5559 || p->type == bfd_symbol_reloc_link_order)
5560 {
5561 /* These are handled below. */
5562 have_link_order_relocs = TRUE;
5563 }
5564 else
5565 {
5566 if (! _bfd_default_link_order (abfd, info, o, p))
5567 goto error_return;
5568 }
252b5132
RH		 5569 }
5570 }
252b5132 5571
116c20d2 5572 /* Write out any symbols that we have not already written out. */
7686d77d
AM		 5573 bfd_hash_traverse (&info->hash->table,
5574 aout_link_write_other_symbol,
5575 &aout_info);
116c20d2
NC		 5576
5577 /* Now handle any relocs we were asked to create by the linker.
5578 These did not come from any input file. We must do these after
5579 we have written out all the symbols, so that we know the symbol
5580 indices to use. */
5581 if (have_link_order_relocs)
5582 {
5583 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5584 {
8423293d 5585 for (p = o->map_head.link_order;
116c20d2
NC		 5586 p != NULL;
5587 p = p->next)
5588 {
5589 if (p->type == bfd_section_reloc_link_order
5590 || p->type == bfd_symbol_reloc_link_order)
5591 {
5592 if (! aout_link_reloc_link_order (&aout_info, o, p))
5593 goto error_return;
5594 }
5595 }
252b5132 5596 }
116c20d2 5597 }
252b5132 5598
116c20d2
NC		 5599 if (aout_info.contents != NULL)
5600 {
5601 free (aout_info.contents);
5602 aout_info.contents = NULL;
5603 }
5604 if (aout_info.relocs != NULL)
5605 {
5606 free (aout_info.relocs);
5607 aout_info.relocs = NULL;
5608 }
5609 if (aout_info.symbol_map != NULL)
5610 {
5611 free (aout_info.symbol_map);
5612 aout_info.symbol_map = NULL;
5613 }
5614 if (aout_info.output_syms != NULL)
5615 {
5616 free (aout_info.output_syms);
5617 aout_info.output_syms = NULL;
5618 }
5619 if (includes_hash_initialized)
5620 {
5621 bfd_hash_table_free (&aout_info.includes.root);
5622 includes_hash_initialized = FALSE;
5623 }
252b5132 5624
116c20d2
NC		 5625 /* Finish up any dynamic linking we may be doing. */
5626 if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
5627 {
5628 if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
5629 goto error_return;
252b5132
RH		 5630 }
5631
116c20d2
NC		 5632 /* Update the header information. */
5633 abfd->symcount = obj_aout_external_sym_count (abfd);
5634 exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
5635 obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
5636 obj_textsec (abfd)->reloc_count =
5637 exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
5638 obj_datasec (abfd)->reloc_count =
5639 exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
252b5132 5640
116c20d2 5641 /* Write out the string table, unless there are no symbols. */
f6e688f7
AM		 5642 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0)
5643 goto error_return;
116c20d2
NC		 5644 if (abfd->symcount > 0)
5645 {
f6e688f7 5646 if (!emit_stringtab (abfd, aout_info.strtab))
116c20d2
NC		 5647 goto error_return;
5648 }
f6e688f7 5649 else
116c20d2 5650 {
f6e688f7 5651 bfd_byte b[BYTES_IN_WORD];
252b5132 5652
f6e688f7
AM		 5653 memset (b, 0, BYTES_IN_WORD);
5654 if (bfd_bwrite (b, (bfd_size_type) BYTES_IN_WORD, abfd) != BYTES_IN_WORD)
116c20d2
NC		 5655 goto error_return;
5656 }
252b5132 5657
b34976b6 5658 return TRUE;
116c20d2
NC		 5659
5660 error_return:
5661 if (aout_info.contents != NULL)
5662 free (aout_info.contents);
5663 if (aout_info.relocs != NULL)
5664 free (aout_info.relocs);
5665 if (aout_info.symbol_map != NULL)
5666 free (aout_info.symbol_map);
5667 if (aout_info.output_syms != NULL)
5668 free (aout_info.output_syms);
5669 if (includes_hash_initialized)
5670 bfd_hash_table_free (&aout_info.includes.root);
5671 return FALSE;
252b5132 5672}
GDB Binutils - Deliverables
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