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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);
dfa85db1
GN		 1948
1949 if (bfd_get_reloc_size (g->howto) != 8)
1950 r_length = g->howto->size; /* Size as a power of two. */
1951 else
1952 r_length = 3;
1953
f7c33884 1954 r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */
252b5132
RH		 1955 /* XXX This relies on relocs coming from a.out files. */
1956 r_baserel = (g->howto->type & 8) != 0;
1957 r_jmptable = (g->howto->type & 16) != 0;
1958 r_relative = (g->howto->type & 32) != 0;
1959
f7c33884 1960 /* Name was clobbered by aout_write_syms to be symbol index. */
252b5132
RH		 1961
1962 /* If this relocation is relative to a symbol then set the
1963 r_index to the symbols index, and the r_extern bit.
1964
1965 Absolute symbols can come in in two ways, either as an offset
1966 from the abs section, or as a symbol which has an abs value.
f7c33884 1967 check for that here. */
252b5132 1968
252b5132
RH		 1969 if (bfd_is_com_section (output_section)
1970 || bfd_is_abs_section (output_section)
22184a77
NC		 1971 || bfd_is_und_section (output_section)
1972 /* PR gas/3041 a.out relocs against weak symbols
1973 must be treated as if they were against externs. */
1974 || (sym->flags & BSF_WEAK))
252b5132
RH		 1975 {
1976 if (bfd_abs_section_ptr->symbol == sym)
f7c33884
NC		 1977 {
1978 /* Whoops, looked like an abs symbol, but is
1979 really an offset from the abs section. */
1980 r_index = N_ABS;
1981 r_extern = 0;
1982 }
252b5132 1983 else
f7c33884
NC		 1984 {
1985 /* Fill in symbol. */
1986 r_extern = 1;
1987 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
1988 }
252b5132
RH		 1989 }
1990 else
1991 {
f7c33884 1992 /* Just an ordinary section. */
252b5132
RH		 1993 r_extern = 0;
1994 r_index = output_section->target_index;
1995 }
1996
f7c33884 1997 /* Now the fun stuff. */
923f08ff
AM		 1998 if (bfd_header_big_endian (abfd))
1999 {
252b5132
RH		 2000 natptr->r_index[0] = r_index >> 16;
2001 natptr->r_index[1] = r_index >> 8;
2002 natptr->r_index[2] = r_index;
923f08ff
AM		 2003 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
2004 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
2005 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
2006 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
2007 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
2008 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
2009 }
2010 else
2011 {
2012 natptr->r_index[2] = r_index >> 16;
2013 natptr->r_index[1] = r_index >> 8;
2014 natptr->r_index[0] = r_index;
2015 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
2016 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
2017 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
2018 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
2019 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
2020 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
2021 }
252b5132
RH		 2022}
2023
f7c33884 2024/* Extended stuff. */
0ef5a5bd 2025/* Output extended relocation information to a file in target byte order. */
252b5132 2026
116c20d2
NC		 2027extern void NAME (aout, swap_ext_reloc_out)
2028 (bfd *, arelent *, struct reloc_ext_external *);
252b5132
RH		 2029
2030void
116c20d2
NC		 2031NAME (aout, swap_ext_reloc_out) (bfd *abfd,
2032 arelent *g,
2033 struct reloc_ext_external *natptr)
252b5132
RH		 2034{
2035 int r_index;
2036 int r_extern;
2037 unsigned int r_type;
dc810e39 2038 bfd_vma r_addend;
252b5132
RH		 2039 asymbol *sym = *(g->sym_ptr_ptr);
2040 asection *output_section = sym->section->output_section;
2041
2042 PUT_WORD (abfd, g->address, natptr->r_address);
2043
2044 r_type = (unsigned int) g->howto->type;
2045
2046 r_addend = g->addend;
2047 if ((sym->flags & BSF_SECTION_SYM) != 0)
2048 r_addend += (*(g->sym_ptr_ptr))->section->output_section->vma;
2049
2050 /* If this relocation is relative to a symbol then set the
2051 r_index to the symbols index, and the r_extern bit.
2052
2053 Absolute symbols can come in in two ways, either as an offset
2054 from the abs section, or as a symbol which has an abs value.
2055 check for that here. */
e6f7f6d1 2056 if (bfd_is_abs_section (bfd_asymbol_section (sym)))
252b5132
RH		 2057 {
2058 r_extern = 0;
2059 r_index = N_ABS;
2060 }
2061 else if ((sym->flags & BSF_SECTION_SYM) == 0)
2062 {
e6f7f6d1 2063 if (bfd_is_und_section (bfd_asymbol_section (sym))
252b5132
RH		 2064 || (sym->flags & BSF_GLOBAL) != 0)
2065 r_extern = 1;
2066 else
2067 r_extern = 0;
2068 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
2069 }
2070 else
2071 {
f7c33884 2072 /* Just an ordinary section. */
252b5132
RH		 2073 r_extern = 0;
2074 r_index = output_section->target_index;
2075 }
2076
f7c33884 2077 /* Now the fun stuff. */
923f08ff
AM		 2078 if (bfd_header_big_endian (abfd))
2079 {
2080 natptr->r_index[0] = r_index >> 16;
2081 natptr->r_index[1] = r_index >> 8;
2082 natptr->r_index[2] = r_index;
2083 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
2084 | (r_type << RELOC_EXT_BITS_TYPE_SH_BIG));
2085 }
2086 else
2087 {
2088 natptr->r_index[2] = r_index >> 16;
2089 natptr->r_index[1] = r_index >> 8;
2090 natptr->r_index[0] = r_index;
2091 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
2092 | (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE));
2093 }
252b5132
RH		 2094
2095 PUT_WORD (abfd, r_addend, natptr->r_addend);
2096}
2097
2098/* BFD deals internally with all things based from the section they're
2099 in. so, something in 10 bytes into a text section with a base of
2100 50 would have a symbol (.text+10) and know .text vma was 50.
2101
2102 Aout keeps all it's symbols based from zero, so the symbol would
2103 contain 60. This macro subs the base of each section from the value
923f08ff
AM		 2104 to give the true offset from the section. */
2105
2106#define MOVE_ADDRESS(ad) \
2107 if (r_extern) \
2108 { \
2109 /* Undefined symbol. */ \
2110 cache_ptr->sym_ptr_ptr = symbols + r_index; \
252b5132 2111 cache_ptr->addend = ad; \
252b5132 2112 } \
923f08ff
AM		 2113 else \
2114 { \
2115 /* Defined, section relative. Replace symbol with pointer to \
2116 symbol which points to section. */ \
2117 switch (r_index) \
2118 { \
2119 case N_TEXT: \
2120 case N_TEXT | N_EXT: \
2121 cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \
2122 cache_ptr->addend = ad - su->textsec->vma; \
2123 break; \
2124 case N_DATA: \
2125 case N_DATA | N_EXT: \
2126 cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \
2127 cache_ptr->addend = ad - su->datasec->vma; \
2128 break; \
2129 case N_BSS: \
2130 case N_BSS | N_EXT: \
2131 cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \
2132 cache_ptr->addend = ad - su->bsssec->vma; \
2133 break; \
2134 default: \
2135 case N_ABS: \
2136 case N_ABS | N_EXT: \
2137 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
2138 cache_ptr->addend = ad; \
2139 break; \
2140 } \
2141 }
252b5132
RH		 2142
2143void
116c20d2
NC		 2144NAME (aout, swap_ext_reloc_in) (bfd *abfd,
2145 struct reloc_ext_external *bytes,
2146 arelent *cache_ptr,
2147 asymbol **symbols,
2148 bfd_size_type symcount)
252b5132
RH		 2149{
2150 unsigned int r_index;
2151 int r_extern;
2152 unsigned int r_type;
2153 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2154
2155 cache_ptr->address = (GET_SWORD (abfd, bytes->r_address));
2156
f7c33884 2157 /* Now the fun stuff. */
923f08ff
AM		 2158 if (bfd_header_big_endian (abfd))
2159 {
d45913a0
DA		 2160 r_index = (((unsigned int) bytes->r_index[0] << 16)
2161 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2162 | bytes->r_index[2]);
2163 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
2164 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
2165 >> RELOC_EXT_BITS_TYPE_SH_BIG);
2166 }
2167 else
2168 {
d45913a0
DA		 2169 r_index = (((unsigned int) bytes->r_index[2] << 16)
2170 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2171 | bytes->r_index[0]);
2172 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
2173 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
2174 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
2175 }
252b5132 2176
ad756e3f
AM		 2177 if (r_type < TABLE_SIZE (howto_table_ext))
2178 cache_ptr->howto = howto_table_ext + r_type;
2179 else
2180 cache_ptr->howto = NULL;
252b5132
RH		 2181
2182 /* Base relative relocs are always against the symbol table,
2183 regardless of the setting of r_extern. r_extern just reflects
2184 whether the symbol the reloc is against is local or global. */
d45913a0
DA		 2185 if (r_type == (unsigned int) RELOC_BASE10
2186 || r_type == (unsigned int) RELOC_BASE13
2187 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 2188 r_extern = 1;
2189
2190 if (r_extern && r_index > symcount)
2191 {
2192 /* We could arrange to return an error, but it might be useful
07d6d2b8 2193 to see the file even if it is bad. */
252b5132
RH		 2194 r_extern = 0;
2195 r_index = N_ABS;
2196 }
2197
923f08ff 2198 MOVE_ADDRESS (GET_SWORD (abfd, bytes->r_addend));
252b5132
RH		 2199}
2200
2201void
116c20d2
NC		 2202NAME (aout, swap_std_reloc_in) (bfd *abfd,
2203 struct reloc_std_external *bytes,
2204 arelent *cache_ptr,
2205 asymbol **symbols,
2206 bfd_size_type symcount)
252b5132
RH		 2207{
2208 unsigned int r_index;
2209 int r_extern;
2210 unsigned int r_length;
2211 int r_pcrel;
2212 int r_baserel, r_jmptable, r_relative;
2213 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2214 unsigned int howto_idx;
2215
dc810e39 2216 cache_ptr->address = H_GET_32 (abfd, bytes->r_address);
252b5132 2217
f7c33884 2218 /* Now the fun stuff. */
923f08ff
AM		 2219 if (bfd_header_big_endian (abfd))
2220 {
d45913a0
DA		 2221 r_index = (((unsigned int) bytes->r_index[0] << 16)
2222 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2223 | bytes->r_index[2]);
2224 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
2225 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
2226 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
2227 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
2228 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
2229 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
2230 >> RELOC_STD_BITS_LENGTH_SH_BIG);
2231 }
2232 else
2233 {
d45913a0
DA		 2234 r_index = (((unsigned int) bytes->r_index[2] << 16)
2235 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2236 | bytes->r_index[0]);
2237 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
2238 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
2239 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE));
2240 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE));
2241 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_LITTLE));
2242 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
2243 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
2244 }
252b5132 2245
923f08ff
AM		 2246 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
2247 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 2248 if (howto_idx < TABLE_SIZE (howto_table_std))
2249 {
2250 cache_ptr->howto = howto_table_std + howto_idx;
2251 if (cache_ptr->howto->type == (unsigned int) -1)
2252 cache_ptr->howto = NULL;
2253 }
2254 else
2255 cache_ptr->howto = NULL;
252b5132
RH		 2256
2257 /* Base relative relocs are always against the symbol table,
2258 regardless of the setting of r_extern. r_extern just reflects
2259 whether the symbol the reloc is against is local or global. */
2260 if (r_baserel)
2261 r_extern = 1;
2262
116acb2c 2263 if (r_extern && r_index >= symcount)
252b5132
RH		 2264 {
2265 /* We could arrange to return an error, but it might be useful
116acb2c
AM		 2266 to see the file even if it is bad. FIXME: Of course this
2267 means that objdump -r *doesn't* see the actual reloc, and
2268 objcopy silently writes a different reloc. */
252b5132
RH		 2269 r_extern = 0;
2270 r_index = N_ABS;
2271 }
2272
923f08ff 2273 MOVE_ADDRESS (0);
252b5132
RH		 2274}
2275
2276/* Read and swap the relocs for a section. */
2277
b34976b6 2278bfd_boolean
116c20d2 2279NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols)
252b5132 2280{
dc810e39 2281 bfd_size_type count;
252b5132 2282 bfd_size_type reloc_size;
116c20d2 2283 void * relocs;
252b5132
RH		 2284 arelent *reloc_cache;
2285 size_t each_size;
2286 unsigned int counter = 0;
2287 arelent *cache_ptr;
dc810e39 2288 bfd_size_type amt;
252b5132
RH		 2289
2290 if (asect->relocation)
b34976b6 2291 return TRUE;
252b5132
RH		 2292
2293 if (asect->flags & SEC_CONSTRUCTOR)
b34976b6 2294 return TRUE;
252b5132
RH		 2295
2296 if (asect == obj_datasec (abfd))
923f08ff 2297 reloc_size = exec_hdr (abfd)->a_drsize;
252b5132 2298 else if (asect == obj_textsec (abfd))
923f08ff 2299 reloc_size = exec_hdr (abfd)->a_trsize;
252b5132
RH		 2300 else if (asect == obj_bsssec (abfd))
2301 reloc_size = 0;
2302 else
2303 {
2304 bfd_set_error (bfd_error_invalid_operation);
b34976b6 2305 return FALSE;
252b5132
RH		 2306 }
2307
252b5132 2308 each_size = obj_reloc_entry_size (abfd);
252b5132 2309 count = reloc_size / each_size;
078c4bfc
MS		 2310 if (count == 0)
2311 return TRUE; /* Nothing to be done. */
252b5132 2312
806470a2 2313 if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
b34976b6 2314 return FALSE;
2bb3687b 2315 relocs = _bfd_malloc_and_read (abfd, reloc_size, reloc_size);
078c4bfc 2316 if (relocs == NULL)
806470a2
AM		 2317 return FALSE;
2318
806470a2
AM		 2319 amt = count * sizeof (arelent);
2320 reloc_cache = (arelent *) bfd_zmalloc (amt);
2321 if (reloc_cache == NULL)
252b5132
RH		 2322 {
2323 free (relocs);
b34976b6 2324 return FALSE;
252b5132
RH		 2325 }
2326
2327 cache_ptr = reloc_cache;
2328 if (each_size == RELOC_EXT_SIZE)
2329 {
dc810e39 2330 struct reloc_ext_external *rptr = (struct reloc_ext_external *) relocs;
252b5132
RH		 2331
2332 for (; counter < count; counter++, rptr++, cache_ptr++)
1642229e 2333 MY_swap_ext_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2334 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2335 }
2336 else
2337 {
dc810e39 2338 struct reloc_std_external *rptr = (struct reloc_std_external *) relocs;
252b5132
RH		 2339
2340 for (; counter < count; counter++, rptr++, cache_ptr++)
2341 MY_swap_std_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2342 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2343 }
2344
2345 free (relocs);
2346
2347 asect->relocation = reloc_cache;
2348 asect->reloc_count = cache_ptr - reloc_cache;
2349
b34976b6 2350 return TRUE;
252b5132
RH		 2351}
2352
2353/* Write out a relocation section into an object file. */
2354
b34976b6 2355bfd_boolean
116c20d2 2356NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section)
252b5132
RH		 2357{
2358 arelent **generic;
2359 unsigned char *native, *natptr;
2360 size_t each_size;
2361
2362 unsigned int count = section->reloc_count;
dc810e39 2363 bfd_size_type natsize;
252b5132
RH		 2364
2365 if (count == 0 || section->orelocation == NULL)
b34976b6 2366 return TRUE;
252b5132
RH		 2367
2368 each_size = obj_reloc_entry_size (abfd);
dc810e39 2369 natsize = (bfd_size_type) each_size * count;
a50b1753 2370 native = (unsigned char *) bfd_zalloc (abfd, natsize);
252b5132 2371 if (!native)
b34976b6 2372 return FALSE;
252b5132
RH		 2373
2374 generic = section->orelocation;
2375
2376 if (each_size == RELOC_EXT_SIZE)
2377 {
2378 for (natptr = native;
2379 count != 0;
2380 --count, natptr += each_size, ++generic)
e2996cc3 2381 {
92744f05
NC		 2382 /* PR 20921: If the howto field has not been initialised then skip
2383 this reloc.
2384 PR 20929: Similarly for the symbol field. */
2385 if ((*generic)->howto == NULL
2386 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2387 {
2388 bfd_set_error (bfd_error_invalid_operation);
dc1e8a47
AM		 2389 _bfd_error_handler (_("%pB: attempt to write out "
2390 "unknown reloc type"), abfd);
e2996cc3
NC		 2391 return FALSE;
2392 }
2393 MY_swap_ext_reloc_out (abfd, *generic,
2394 (struct reloc_ext_external *) natptr);
2395 }
252b5132
RH		 2396 }
2397 else
2398 {
2399 for (natptr = native;
2400 count != 0;
2401 --count, natptr += each_size, ++generic)
e2996cc3 2402 {
92744f05
NC		 2403 if ((*generic)->howto == NULL
2404 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2405 {
2406 bfd_set_error (bfd_error_invalid_operation);
dc1e8a47
AM		 2407 _bfd_error_handler (_("%pB: attempt to write out "
2408 "unknown reloc type"), abfd);
e2996cc3
NC		 2409 return FALSE;
2410 }
2411 MY_swap_std_reloc_out (abfd, *generic,
2412 (struct reloc_std_external *) natptr);
2413 }
252b5132
RH		 2414 }
2415
116c20d2 2416 if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
dc810e39 2417 {
923f08ff 2418 bfd_release (abfd, native);
b34976b6 2419 return FALSE;
dc810e39 2420 }
252b5132
RH		 2421 bfd_release (abfd, native);
2422
b34976b6 2423 return TRUE;
252b5132
RH		 2424}
2425
f7c33884
NC		 2426/* This is stupid. This function should be a boolean predicate. */
2427
252b5132 2428long
116c20d2
NC		 2429NAME (aout, canonicalize_reloc) (bfd *abfd,
2430 sec_ptr section,
2431 arelent **relptr,
2432 asymbol **symbols)
252b5132
RH		 2433{
2434 arelent *tblptr = section->relocation;
2435 unsigned int count;
2436
2437 if (section == obj_bsssec (abfd))
2438 {
2439 *relptr = NULL;
2440 return 0;
2441 }
2442
116c20d2 2443 if (!(tblptr || NAME (aout, slurp_reloc_table) (abfd, section, symbols)))
252b5132
RH		 2444 return -1;
2445
923f08ff
AM		 2446 if (section->flags & SEC_CONSTRUCTOR)
2447 {
2448 arelent_chain *chain = section->constructor_chain;
2449 for (count = 0; count < section->reloc_count; count ++)
2450 {
2451 *relptr ++ = &chain->relent;
2452 chain = chain->next;
2453 }
252b5132 2454 }
923f08ff
AM		 2455 else
2456 {
2457 tblptr = section->relocation;
252b5132 2458
923f08ff
AM		 2459 for (count = 0; count++ < section->reloc_count; )
2460 {
2461 *relptr++ = tblptr++;
2462 }
2463 }
252b5132
RH		 2464 *relptr = 0;
2465
2466 return section->reloc_count;
2467}
2468
2469long
116c20d2 2470NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect)
252b5132 2471{
3a551c7a
AM		 2472 bfd_size_type count;
2473
923f08ff
AM		 2474 if (bfd_get_format (abfd) != bfd_object)
2475 {
2476 bfd_set_error (bfd_error_invalid_operation);
2477 return -1;
2478 }
f7c33884 2479
923f08ff 2480 if (asect->flags & SEC_CONSTRUCTOR)
3a551c7a
AM		 2481 count = asect->reloc_count;
2482 else if (asect == obj_datasec (abfd))
2483 count = exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
2484 else if (asect == obj_textsec (abfd))
2485 count = exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
2486 else if (asect == obj_bsssec (abfd))
2487 count = 0;
2488 else
2489 {
2490 bfd_set_error (bfd_error_invalid_operation);
2491 return -1;
2492 }
252b5132 2493
3a551c7a
AM		 2494 if (count >= LONG_MAX / sizeof (arelent *))
2495 {
2496 bfd_set_error (bfd_error_file_too_big);
2497 return -1;
2498 }
2499 return (count + 1) * sizeof (arelent *);
252b5132 2500}
252b5132
RH		 2501\f
2502long
116c20d2 2503NAME (aout, get_symtab_upper_bound) (bfd *abfd)
252b5132 2504{
116c20d2 2505 if (!NAME (aout, slurp_symbol_table) (abfd))
252b5132
RH		 2506 return -1;
2507
2508 return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
2509}
2510
1725a96e 2511alent *
116c20d2
NC		 2512NAME (aout, get_lineno) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2513 asymbol *ignore_symbol ATTRIBUTE_UNUSED)
252b5132 2514{
116c20d2 2515 return NULL;
252b5132
RH		 2516}
2517
252b5132 2518void
116c20d2
NC		 2519NAME (aout, get_symbol_info) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2520 asymbol *symbol,
2521 symbol_info *ret)
252b5132
RH		 2522{
2523 bfd_symbol_info (symbol, ret);
2524
2525 if (ret->type == '?')
2526 {
923f08ff 2527 int type_code = aout_symbol (symbol)->type & 0xff;
252b5132
RH		 2528 const char *stab_name = bfd_get_stab_name (type_code);
2529 static char buf[10];
2530
2531 if (stab_name == NULL)
2532 {
e60b52c6 2533 sprintf (buf, "(%d)", type_code);
252b5132
RH		 2534 stab_name = buf;
2535 }
2536 ret->type = '-';
2537 ret->stab_type = type_code;
923f08ff
AM		 2538 ret->stab_other = (unsigned) (aout_symbol (symbol)->other & 0xff);
2539 ret->stab_desc = (unsigned) (aout_symbol (symbol)->desc & 0xffff);
252b5132
RH		 2540 ret->stab_name = stab_name;
2541 }
2542}
2543
252b5132 2544void
116c20d2
NC		 2545NAME (aout, print_symbol) (bfd *abfd,
2546 void * afile,
2547 asymbol *symbol,
2548 bfd_print_symbol_type how)
252b5132
RH		 2549{
2550 FILE *file = (FILE *)afile;
2551
923f08ff 2552 switch (how)
252b5132 2553 {
923f08ff
AM		 2554 case bfd_print_symbol_name:
2555 if (symbol->name)
2556 fprintf (file,"%s", symbol->name);
2557 break;
2558 case bfd_print_symbol_more:
2559 fprintf (file,"%4x %2x %2x",
2560 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2561 (unsigned) (aout_symbol (symbol)->other & 0xff),
2562 (unsigned) (aout_symbol (symbol)->type));
2563 break;
2564 case bfd_print_symbol_all:
2565 {
2566 const char *section_name = symbol->section->name;
252b5132 2567
116c20d2 2568 bfd_print_symbol_vandf (abfd, (void *)file, symbol);
252b5132 2569
923f08ff
AM		 2570 fprintf (file," %-5s %04x %02x %02x",
2571 section_name,
2572 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2573 (unsigned) (aout_symbol (symbol)->other & 0xff),
2574 (unsigned) (aout_symbol (symbol)->type & 0xff));
2575 if (symbol->name)
2576 fprintf (file," %s", symbol->name);
2577 }
2578 break;
252b5132 2579 }
252b5132
RH		 2580}
2581
2582/* If we don't have to allocate more than 1MB to hold the generic
2583 symbols, we use the generic minisymbol methord: it's faster, since
2584 it only translates the symbols once, not multiple times. */
2585#define MINISYM_THRESHOLD (1000000 / sizeof (asymbol))
2586
2587/* Read minisymbols. For minisymbols, we use the unmodified a.out
2588 symbols. The minisymbol_to_symbol function translates these into
2589 BFD asymbol structures. */
2590
2591long
116c20d2
NC		 2592NAME (aout, read_minisymbols) (bfd *abfd,
2593 bfd_boolean dynamic,
2594 void * *minisymsp,
2595 unsigned int *sizep)
252b5132
RH		 2596{
2597 if (dynamic)
116c20d2
NC		 2598 /* We could handle the dynamic symbols here as well, but it's
2599 easier to hand them off. */
2600 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
252b5132
RH		 2601
2602 if (! aout_get_external_symbols (abfd))
2603 return -1;
2604
2605 if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2606 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
2607
116c20d2 2608 *minisymsp = (void *) obj_aout_external_syms (abfd);
252b5132
RH		 2609
2610 /* By passing the external symbols back from this routine, we are
2611 giving up control over the memory block. Clear
2612 obj_aout_external_syms, so that we do not try to free it
2613 ourselves. */
2614 obj_aout_external_syms (abfd) = NULL;
2615
2616 *sizep = EXTERNAL_NLIST_SIZE;
2617 return obj_aout_external_sym_count (abfd);
2618}
2619
2620/* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
2621 unmodified a.out symbol. The SYM argument is a structure returned
2622 by bfd_make_empty_symbol, which we fill in here. */
2623
2624asymbol *
116c20d2
NC		 2625NAME (aout, minisymbol_to_symbol) (bfd *abfd,
2626 bfd_boolean dynamic,
2627 const void * minisym,
2628 asymbol *sym)
252b5132
RH		 2629{
2630 if (dynamic
2631 || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2632 return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
2633
2634 memset (sym, 0, sizeof (aout_symbol_type));
2635
2636 /* We call translate_symbol_table to translate a single symbol. */
116c20d2 2637 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 2638 (abfd,
2639 (aout_symbol_type *) sym,
2640 (struct external_nlist *) minisym,
2641 (bfd_size_type) 1,
2642 obj_aout_external_strings (abfd),
2643 obj_aout_external_string_size (abfd),
b34976b6 2644 FALSE)))
252b5132
RH		 2645 return NULL;
2646
2647 return sym;
2648}
2649
f7c33884
NC		 2650/* Provided a BFD, a section and an offset into the section, calculate
2651 and return the name of the source file and the line nearest to the
2652 wanted location. */
252b5132 2653
b34976b6 2654bfd_boolean
116c20d2 2655NAME (aout, find_nearest_line) (bfd *abfd,
116c20d2 2656 asymbol **symbols,
fb167eb2 2657 asection *section,
116c20d2
NC		 2658 bfd_vma offset,
2659 const char **filename_ptr,
2660 const char **functionname_ptr,
fb167eb2
AM		 2661 unsigned int *line_ptr,
2662 unsigned int *disriminator_ptr)
252b5132 2663{
f7c33884 2664 /* Run down the file looking for the filename, function and linenumber. */
252b5132 2665 asymbol **p;
dc810e39
AM		 2666 const char *directory_name = NULL;
2667 const char *main_file_name = NULL;
2668 const char *current_file_name = NULL;
116c20d2 2669 const char *line_file_name = NULL; /* Value of current_file_name at line number. */
dc810e39 2670 const char *line_directory_name = NULL; /* Value of directory_name at line number. */
252b5132
RH		 2671 bfd_vma low_line_vma = 0;
2672 bfd_vma low_func_vma = 0;
2673 asymbol *func = 0;
dc810e39 2674 bfd_size_type filelen, funclen;
252b5132
RH		 2675 char *buf;
2676
2677 *filename_ptr = abfd->filename;
50455f1a 2678 *functionname_ptr = NULL;
252b5132 2679 *line_ptr = 0;
fb167eb2
AM		 2680 if (disriminator_ptr)
2681 *disriminator_ptr = 0;
f7c33884 2682
116c20d2 2683 if (symbols != NULL)
923f08ff
AM		 2684 {
2685 for (p = symbols; *p; p++)
2686 {
2687 aout_symbol_type *q = (aout_symbol_type *) (*p);
2688 next:
2689 switch (q->type)
2690 {
2691 case N_TEXT:
2692 /* If this looks like a file name symbol, and it comes after
2693 the line number we have found so far, but before the
2694 offset, then we have probably not found the right line
2695 number. */
2696 if (q->symbol.value <= offset
2697 && ((q->symbol.value > low_line_vma
2698 && (line_file_name != NULL
2699 || *line_ptr != 0))
2700 || (q->symbol.value > low_func_vma
2701 && func != NULL)))
2702 {
2703 const char *symname;
252b5132 2704
923f08ff 2705 symname = q->symbol.name;
808346fc
NC		 2706
2707 if (symname != NULL
2708 && strlen (symname) > 2
2709 && strcmp (symname + strlen (symname) - 2, ".o") == 0)
923f08ff
AM		 2710 {
2711 if (q->symbol.value > low_line_vma)
2712 {
2713 *line_ptr = 0;
2714 line_file_name = NULL;
2715 }
2716 if (q->symbol.value > low_func_vma)
2717 func = NULL;
2718 }
2719 }
2720 break;
252b5132 2721
923f08ff
AM		 2722 case N_SO:
2723 /* If this symbol is less than the offset, but greater than
2724 the line number we have found so far, then we have not
2725 found the right line number. */
2726 if (q->symbol.value <= offset)
2727 {
2728 if (q->symbol.value > low_line_vma)
2729 {
2730 *line_ptr = 0;
2731 line_file_name = NULL;
2732 }
2733 if (q->symbol.value > low_func_vma)
2734 func = NULL;
2735 }
252b5132 2736
923f08ff
AM		 2737 main_file_name = current_file_name = q->symbol.name;
2738 /* Look ahead to next symbol to check if that too is an N_SO. */
2739 p++;
2740 if (*p == NULL)
c3864421 2741 goto done;
923f08ff
AM		 2742 q = (aout_symbol_type *) (*p);
2743 if (q->type != (int)N_SO)
2744 goto next;
2745
2746 /* Found a second N_SO First is directory; second is filename. */
2747 directory_name = current_file_name;
2748 main_file_name = current_file_name = q->symbol.name;
2749 if (obj_textsec (abfd) != section)
2750 goto done;
2751 break;
2752 case N_SOL:
2753 current_file_name = q->symbol.name;
2754 break;
252b5132 2755
923f08ff 2756 case N_SLINE:
252b5132 2757
923f08ff
AM		 2758 case N_DSLINE:
2759 case N_BSLINE:
2760 /* We'll keep this if it resolves nearer than the one we have
2761 already. */
2762 if (q->symbol.value >= low_line_vma
2763 && q->symbol.value <= offset)
2764 {
2765 *line_ptr = q->desc;
2766 low_line_vma = q->symbol.value;
2767 line_file_name = current_file_name;
2768 line_directory_name = directory_name;
2769 }
2770 break;
2771 case N_FUN:
2772 {
f7c33884 2773 /* We'll keep this if it is nearer than the one we have already. */
808346fc
NC		 2774 if (q->symbol.value >= low_func_vma
2775 && q->symbol.value <= offset)
f7c33884
NC		 2776 {
2777 low_func_vma = q->symbol.value;
2778 func = (asymbol *)q;
2779 }
923f08ff
AM		 2780 else if (q->symbol.value > offset)
2781 goto done;
2782 }
2783 break;
2784 }
252b5132 2785 }
252b5132 2786 }
252b5132
RH		 2787
2788 done:
2789 if (*line_ptr != 0)
2790 {
2791 main_file_name = line_file_name;
2792 directory_name = line_directory_name;
2793 }
2794
2795 if (main_file_name == NULL
5af11cab 2796 || IS_ABSOLUTE_PATH (main_file_name)
252b5132
RH		 2797 || directory_name == NULL)
2798 filelen = 0;
2799 else
2800 filelen = strlen (directory_name) + strlen (main_file_name);
f7c33884 2801
252b5132
RH		 2802 if (func == NULL)
2803 funclen = 0;
2804 else
2805 funclen = strlen (bfd_asymbol_name (func));
2806
2807 if (adata (abfd).line_buf != NULL)
2808 free (adata (abfd).line_buf);
f7c33884 2809
252b5132
RH		 2810 if (filelen + funclen == 0)
2811 adata (abfd).line_buf = buf = NULL;
2812 else
2813 {
a50b1753 2814 buf = (char *) bfd_malloc (filelen + funclen + 3);
252b5132
RH		 2815 adata (abfd).line_buf = buf;
2816 if (buf == NULL)
b34976b6 2817 return FALSE;
252b5132
RH		 2818 }
2819
2820 if (main_file_name != NULL)
2821 {
5af11cab 2822 if (IS_ABSOLUTE_PATH (main_file_name) || directory_name == NULL)
252b5132
RH		 2823 *filename_ptr = main_file_name;
2824 else
2825 {
50455f1a
NC		 2826 if (buf == NULL)
2827 /* PR binutils/20891: In a corrupt input file both
2828 main_file_name and directory_name can be empty... */
2829 * filename_ptr = NULL;
2830 else
2831 {
2832 snprintf (buf, filelen + 1, "%s%s", directory_name,
2833 main_file_name);
2834 *filename_ptr = buf;
2835 buf += filelen + 1;
2836 }
252b5132
RH		 2837 }
2838 }
2839
2840 if (func)
2841 {
2842 const char *function = func->name;
dc810e39 2843 char *colon;
252b5132 2844
e82ab856
NC		 2845 if (buf == NULL)
2846 {
2847 /* PR binutils/20892: In a corrupt input file func can be empty. */
2848 * functionname_ptr = NULL;
2849 return TRUE;
2850 }
252b5132
RH		 2851 /* The caller expects a symbol name. We actually have a
2852 function name, without the leading underscore. Put the
2853 underscore back in, so that the caller gets a symbol name. */
2854 if (bfd_get_symbol_leading_char (abfd) == '\0')
2855 strcpy (buf, function);
2856 else
2857 {
2858 buf[0] = bfd_get_symbol_leading_char (abfd);
2859 strcpy (buf + 1, function);
2860 }
f7c33884 2861 /* Have to remove : stuff. */
dc810e39
AM		 2862 colon = strchr (buf, ':');
2863 if (colon != NULL)
2864 *colon = '\0';
252b5132
RH		 2865 *functionname_ptr = buf;
2866 }
2867
b34976b6 2868 return TRUE;
252b5132
RH		 2869}
2870
252b5132 2871int
a6b96beb
AM		 2872NAME (aout, sizeof_headers) (bfd *abfd,
2873 struct bfd_link_info *info ATTRIBUTE_UNUSED)
252b5132 2874{
923f08ff 2875 return adata (abfd).exec_bytes_size;
252b5132
RH		 2876}
2877
2878/* Free all information we have cached for this BFD. We can always
2879 read it again later if we need it. */
2880
b34976b6 2881bfd_boolean
116c20d2 2882NAME (aout, bfd_free_cached_info) (bfd *abfd)
252b5132
RH		 2883{
2884 asection *o;
2885
920581c5
L		 2886 if (bfd_get_format (abfd) != bfd_object
2887 || abfd->tdata.aout_data == NULL)
b34976b6 2888 return TRUE;
252b5132
RH		 2889
2890#define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
2891 BFCI_FREE (obj_aout_symbols (abfd));
2892#ifdef USE_MMAP
2893 obj_aout_external_syms (abfd) = 0;
2894 bfd_free_window (&obj_aout_sym_window (abfd));
2895 bfd_free_window (&obj_aout_string_window (abfd));
2896 obj_aout_external_strings (abfd) = 0;
2897#else
2898 BFCI_FREE (obj_aout_external_syms (abfd));
2899 BFCI_FREE (obj_aout_external_strings (abfd));
2900#endif
116c20d2 2901 for (o = abfd->sections; o != NULL; o = o->next)
252b5132
RH		 2902 BFCI_FREE (o->relocation);
2903#undef BFCI_FREE
2904
b34976b6 2905 return TRUE;
252b5132
RH		 2906}
2907\f
2908/* a.out link code. */
2909
252b5132
RH		 2910/* Routine to create an entry in an a.out link hash table. */
2911
2912struct bfd_hash_entry *
116c20d2
NC		 2913NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry,
2914 struct bfd_hash_table *table,
2915 const char *string)
252b5132
RH		 2916{
2917 struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry;
2918
2919 /* Allocate the structure if it has not already been allocated by a
2920 subclass. */
116c20d2 2921 if (ret == NULL)
a50b1753 2922 ret = (struct aout_link_hash_entry *) bfd_hash_allocate (table,
07d6d2b8 2923 sizeof (* ret));
116c20d2
NC		 2924 if (ret == NULL)
2925 return NULL;
252b5132
RH		 2926
2927 /* Call the allocation method of the superclass. */
2928 ret = ((struct aout_link_hash_entry *)
2929 _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2930 table, string));
2931 if (ret)
2932 {
2933 /* Set local fields. */
b34976b6 2934 ret->written = FALSE;
252b5132
RH		 2935 ret->indx = -1;
2936 }
2937
2938 return (struct bfd_hash_entry *) ret;
2939}
2940
2941/* Initialize an a.out link hash table. */
2942
b34976b6 2943bfd_boolean
116c20d2
NC		 2944NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table,
2945 bfd *abfd,
2946 struct bfd_hash_entry *(*newfunc)
2947 (struct bfd_hash_entry *, struct bfd_hash_table *,
66eb6687
AM		 2948 const char *),
2949 unsigned int entsize)
252b5132 2950{
66eb6687 2951 return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize);
252b5132
RH		 2952}
2953
2954/* Create an a.out link hash table. */
2955
2956struct bfd_link_hash_table *
116c20d2 2957NAME (aout, link_hash_table_create) (bfd *abfd)
252b5132
RH		 2958{
2959 struct aout_link_hash_table *ret;
986f0783 2960 size_t amt = sizeof (* ret);
252b5132 2961
a50b1753 2962 ret = (struct aout_link_hash_table *) bfd_malloc (amt);
252b5132 2963 if (ret == NULL)
116c20d2 2964 return NULL;
5ed6aba4 2965
66eb6687
AM		 2966 if (!NAME (aout, link_hash_table_init) (ret, abfd,
2967 NAME (aout, link_hash_newfunc),
2968 sizeof (struct aout_link_hash_entry)))
252b5132
RH		 2969 {
2970 free (ret);
116c20d2 2971 return NULL;
252b5132
RH		 2972 }
2973 return &ret->root;
2974}
2975
116c20d2 2976/* Add all symbols from an object file to the hash table. */
252b5132 2977
b34976b6 2978static bfd_boolean
116c20d2 2979aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 2980{
116c20d2
NC		 2981 bfd_boolean (*add_one_symbol)
2982 (struct bfd_link_info *, bfd *, const char *, flagword, asection *,
2983 bfd_vma, const char *, bfd_boolean, bfd_boolean,
2984 struct bfd_link_hash_entry **);
2985 struct external_nlist *syms;
2986 bfd_size_type sym_count;
2987 char *strings;
2988 bfd_boolean copy;
2989 struct aout_link_hash_entry **sym_hash;
2990 struct external_nlist *p;
2991 struct external_nlist *pend;
2992 bfd_size_type amt;
252b5132 2993
116c20d2
NC		 2994 syms = obj_aout_external_syms (abfd);
2995 sym_count = obj_aout_external_sym_count (abfd);
2996 strings = obj_aout_external_strings (abfd);
2997 if (info->keep_memory)
2998 copy = FALSE;
2999 else
3000 copy = TRUE;
252b5132 3001
116c20d2 3002 if (aout_backend_info (abfd)->add_dynamic_symbols != NULL)
252b5132 3003 {
116c20d2
NC		 3004 if (! ((*aout_backend_info (abfd)->add_dynamic_symbols)
3005 (abfd, info, &syms, &sym_count, &strings)))
b34976b6 3006 return FALSE;
252b5132
RH		 3007 }
3008
20c6e70e
MS		 3009 if (sym_count == 0)
3010 return TRUE; /* Nothing to do. */
3011
116c20d2
NC		 3012 /* We keep a list of the linker hash table entries that correspond
3013 to particular symbols. We could just look them up in the hash
3014 table, but keeping the list is more efficient. Perhaps this
3015 should be conditional on info->keep_memory. */
3016 amt = sym_count * sizeof (struct aout_link_hash_entry *);
a50b1753 3017 sym_hash = (struct aout_link_hash_entry **) bfd_alloc (abfd, amt);
20c6e70e 3018 if (sym_hash == NULL)
116c20d2
NC		 3019 return FALSE;
3020 obj_aout_sym_hashes (abfd) = sym_hash;
252b5132 3021
116c20d2
NC		 3022 add_one_symbol = aout_backend_info (abfd)->add_one_symbol;
3023 if (add_one_symbol == NULL)
3024 add_one_symbol = _bfd_generic_link_add_one_symbol;
252b5132 3025
116c20d2
NC		 3026 p = syms;
3027 pend = p + sym_count;
3028 for (; p < pend; p++, sym_hash++)
252b5132 3029 {
116c20d2 3030 int type;
252b5132 3031 const char *name;
116c20d2
NC		 3032 bfd_vma value;
3033 asection *section;
3034 flagword flags;
3035 const char *string;
252b5132 3036
116c20d2 3037 *sym_hash = NULL;
252b5132 3038
116c20d2 3039 type = H_GET_8 (abfd, p->e_type);
252b5132 3040
116c20d2
NC		 3041 /* Ignore debugging symbols. */
3042 if ((type & N_STAB) != 0)
3043 continue;
252b5132 3044
e517df3d 3045 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
531336e3 3046 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3047 return FALSE;
116c20d2
NC		 3048 name = strings + GET_WORD (abfd, p->e_strx);
3049 value = GET_WORD (abfd, p->e_value);
3050 flags = BSF_GLOBAL;
3051 string = NULL;
3052 switch (type)
252b5132 3053 {
116c20d2
NC		 3054 default:
3055 abort ();
f7c33884 3056
116c20d2
NC		 3057 case N_UNDF:
3058 case N_ABS:
3059 case N_TEXT:
3060 case N_DATA:
3061 case N_BSS:
3062 case N_FN_SEQ:
3063 case N_COMM:
3064 case N_SETV:
3065 case N_FN:
3066 /* Ignore symbols that are not externally visible. */
3067 continue;
3068 case N_INDR:
3069 /* Ignore local indirect symbol. */
3070 ++p;
3071 ++sym_hash;
3072 continue;
252b5132 3073
116c20d2
NC		 3074 case N_UNDF | N_EXT:
3075 if (value == 0)
f7c33884 3076 {
116c20d2
NC		 3077 section = bfd_und_section_ptr;
3078 flags = 0;
252b5132
RH		 3079 }
3080 else
3081 section = bfd_com_section_ptr;
3082 break;
3083 case N_ABS | N_EXT:
3084 section = bfd_abs_section_ptr;
3085 break;
3086 case N_TEXT | N_EXT:
3087 section = obj_textsec (abfd);
fd361982 3088 value -= bfd_section_vma (section);
252b5132
RH		 3089 break;
3090 case N_DATA | N_EXT:
3091 case N_SETV | N_EXT:
3092 /* Treat N_SETV symbols as N_DATA symbol; see comment in
3093 translate_from_native_sym_flags. */
3094 section = obj_datasec (abfd);
fd361982 3095 value -= bfd_section_vma (section);
252b5132
RH		 3096 break;
3097 case N_BSS | N_EXT:
3098 section = obj_bsssec (abfd);
fd361982 3099 value -= bfd_section_vma (section);
252b5132
RH		 3100 break;
3101 case N_INDR | N_EXT:
3102 /* An indirect symbol. The next symbol is the symbol
3103 which this one really is. */
39d4daf6
NC		 3104 /* See PR 20925 for a reproducer. */
3105 if (p + 1 >= pend)
3106 return FALSE;
252b5132 3107 ++p;
e517df3d 3108 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3109 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3110 return FALSE;
252b5132
RH		 3111 string = strings + GET_WORD (abfd, p->e_strx);
3112 section = bfd_ind_section_ptr;
3113 flags |= BSF_INDIRECT;
3114 break;
3115 case N_COMM | N_EXT:
3116 section = bfd_com_section_ptr;
3117 break;
3118 case N_SETA: case N_SETA | N_EXT:
3119 section = bfd_abs_section_ptr;
3120 flags |= BSF_CONSTRUCTOR;
3121 break;
3122 case N_SETT: case N_SETT | N_EXT:
3123 section = obj_textsec (abfd);
3124 flags |= BSF_CONSTRUCTOR;
fd361982 3125 value -= bfd_section_vma (section);
252b5132
RH		 3126 break;
3127 case N_SETD: case N_SETD | N_EXT:
3128 section = obj_datasec (abfd);
3129 flags |= BSF_CONSTRUCTOR;
fd361982 3130 value -= bfd_section_vma (section);
252b5132
RH		 3131 break;
3132 case N_SETB: case N_SETB | N_EXT:
3133 section = obj_bsssec (abfd);
3134 flags |= BSF_CONSTRUCTOR;
fd361982 3135 value -= bfd_section_vma (section);
252b5132
RH		 3136 break;
3137 case N_WARNING:
3138 /* A warning symbol. The next symbol is the one to warn
9f400ee9
HPN		 3139 about. If there is no next symbol, just look away. */
3140 if (p + 1 >= pend)
3141 return TRUE;
252b5132
RH		 3142 ++p;
3143 string = name;
e517df3d 3144 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3145 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3146 return FALSE;
252b5132
RH		 3147 name = strings + GET_WORD (abfd, p->e_strx);
3148 section = bfd_und_section_ptr;
3149 flags |= BSF_WARNING;
3150 break;
3151 case N_WEAKU:
3152 section = bfd_und_section_ptr;
3153 flags = BSF_WEAK;
3154 break;
3155 case N_WEAKA:
3156 section = bfd_abs_section_ptr;
3157 flags = BSF_WEAK;
3158 break;
3159 case N_WEAKT:
3160 section = obj_textsec (abfd);
fd361982 3161 value -= bfd_section_vma (section);
252b5132
RH		 3162 flags = BSF_WEAK;
3163 break;
3164 case N_WEAKD:
3165 section = obj_datasec (abfd);
fd361982 3166 value -= bfd_section_vma (section);
252b5132
RH		 3167 flags = BSF_WEAK;
3168 break;
3169 case N_WEAKB:
3170 section = obj_bsssec (abfd);
fd361982 3171 value -= bfd_section_vma (section);
252b5132
RH		 3172 flags = BSF_WEAK;
3173 break;
3174 }
3175
3176 if (! ((*add_one_symbol)
b34976b6 3177 (info, abfd, name, flags, section, value, string, copy, FALSE,
252b5132 3178 (struct bfd_link_hash_entry **) sym_hash)))
b34976b6 3179 return FALSE;
252b5132
RH		 3180
3181 /* Restrict the maximum alignment of a common symbol based on
3182 the architecture, since a.out has no way to represent
3183 alignment requirements of a section in a .o file. FIXME:
3184 This isn't quite right: it should use the architecture of the
3185 output file, not the input files. */
3186 if ((*sym_hash)->root.type == bfd_link_hash_common
3187 && ((*sym_hash)->root.u.c.p->alignment_power >
3188 bfd_get_arch_info (abfd)->section_align_power))
3189 (*sym_hash)->root.u.c.p->alignment_power =
3190 bfd_get_arch_info (abfd)->section_align_power;
3191
3192 /* If this is a set symbol, and we are not building sets, then
3193 it is possible for the hash entry to not have been set. In
3194 such a case, treat the symbol as not globally defined. */
3195 if ((*sym_hash)->root.type == bfd_link_hash_new)
3196 {
3197 BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0);
3198 *sym_hash = NULL;
3199 }
3200
3201 if (type == (N_INDR | N_EXT) || type == N_WARNING)
3202 ++sym_hash;
3203 }
3204
b34976b6 3205 return TRUE;
252b5132 3206}
252b5132 3207
116c20d2
NC		 3208/* Free up the internal symbols read from an a.out file. */
3209
3210static bfd_boolean
3211aout_link_free_symbols (bfd *abfd)
252b5132 3212{
116c20d2
NC		 3213 if (obj_aout_external_syms (abfd) != NULL)
3214 {
3215#ifdef USE_MMAP
3216 bfd_free_window (&obj_aout_sym_window (abfd));
3217#else
3218 free ((void *) obj_aout_external_syms (abfd));
3219#endif
3220 obj_aout_external_syms (abfd) = NULL;
3221 }
3222 if (obj_aout_external_strings (abfd) != NULL)
3223 {
3224#ifdef USE_MMAP
3225 bfd_free_window (&obj_aout_string_window (abfd));
3226#else
3227 free ((void *) obj_aout_external_strings (abfd));
3228#endif
3229 obj_aout_external_strings (abfd) = NULL;
3230 }
3231 return TRUE;
3232}
252b5132 3233
116c20d2 3234/* Add symbols from an a.out object file. */
252b5132 3235
116c20d2
NC		 3236static bfd_boolean
3237aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 3238{
116c20d2
NC		 3239 if (! aout_get_external_symbols (abfd))
3240 return FALSE;
3241 if (! aout_link_add_symbols (abfd, info))
3242 return FALSE;
3243 if (! info->keep_memory)
3244 {
3245 if (! aout_link_free_symbols (abfd))
3246 return FALSE;
3247 }
3248 return TRUE;
3249}
252b5132 3250
116c20d2
NC		 3251/* Look through the internal symbols to see if this object file should
3252 be included in the link. We should include this object file if it
3253 defines any symbols which are currently undefined. If this object
3254 file defines a common symbol, then we may adjust the size of the
3255 known symbol but we do not include the object file in the link
3256 (unless there is some other reason to include it). */
252b5132 3257
116c20d2
NC		 3258static bfd_boolean
3259aout_link_check_ar_symbols (bfd *abfd,
3260 struct bfd_link_info *info,
5d3236ee
DK		 3261 bfd_boolean *pneeded,
3262 bfd **subsbfd)
252b5132 3263{
116c20d2
NC		 3264 struct external_nlist *p;
3265 struct external_nlist *pend;
3266 char *strings;
252b5132 3267
116c20d2 3268 *pneeded = FALSE;
252b5132 3269
116c20d2
NC		 3270 /* Look through all the symbols. */
3271 p = obj_aout_external_syms (abfd);
3272 pend = p + obj_aout_external_sym_count (abfd);
3273 strings = obj_aout_external_strings (abfd);
3274 for (; p < pend; p++)
3275 {
3276 int type = H_GET_8 (abfd, p->e_type);
3277 const char *name;
3278 struct bfd_link_hash_entry *h;
252b5132 3279
116c20d2
NC		 3280 /* Ignore symbols that are not externally visible. This is an
3281 optimization only, as we check the type more thoroughly
3282 below. */
3283 if (((type & N_EXT) == 0
3284 || (type & N_STAB) != 0
3285 || type == N_FN)
3286 && type != N_WEAKA
3287 && type != N_WEAKT
3288 && type != N_WEAKD
3289 && type != N_WEAKB)
3290 {
3291 if (type == N_WARNING
3292 || type == N_INDR)
3293 ++p;
3294 continue;
3295 }
3296
3297 name = strings + GET_WORD (abfd, p->e_strx);
3298 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
3299
3300 /* We are only interested in symbols that are currently
3301 undefined or common. */
3302 if (h == NULL
3303 || (h->type != bfd_link_hash_undefined
3304 && h->type != bfd_link_hash_common))
3305 {
3306 if (type == (N_INDR | N_EXT))
3307 ++p;
3308 continue;
3309 }
3310
3311 if (type == (N_TEXT | N_EXT)
3312 || type == (N_DATA | N_EXT)
3313 || type == (N_BSS | N_EXT)
3314 || type == (N_ABS | N_EXT)
3315 || type == (N_INDR | N_EXT))
3316 {
3317 /* This object file defines this symbol. We must link it
3318 in. This is true regardless of whether the current
3319 definition of the symbol is undefined or common.
3320
07d6d2b8 3321 If the current definition is common, we have a case in
116c20d2 3322 which we have already seen an object file including:
07d6d2b8 3323 int a;
116c20d2 3324 and this object file from the archive includes:
07d6d2b8 3325 int a = 5;
116c20d2 3326 In such a case, whether to include this object is target
07d6d2b8 3327 dependant for backward compatibility.
116c20d2
NC		 3328
3329 FIXME: The SunOS 4.1.3 linker will pull in the archive
3330 element if the symbol is defined in the .data section,
3331 but not if it is defined in the .text section. That
3332 seems a bit crazy to me, and it has not been implemented
3333 yet. However, it might be correct. */
3334 if (h->type == bfd_link_hash_common)
3335 {
3336 int skip = 0;
3337
f88dc410 3338 switch (info->common_skip_ar_symbols)
116c20d2 3339 {
a78eea16
AM		 3340 case bfd_link_common_skip_none:
3341 break;
116c20d2
NC		 3342 case bfd_link_common_skip_text:
3343 skip = (type == (N_TEXT | N_EXT));
3344 break;
3345 case bfd_link_common_skip_data:
3346 skip = (type == (N_DATA | N_EXT));
3347 break;
116c20d2
NC		 3348 case bfd_link_common_skip_all:
3349 skip = 1;
3350 break;
3351 }
3352
3353 if (skip)
3354 continue;
3355 }
3356
0e144ba7
AM		 3357 if (!(*info->callbacks
3358 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3359 return FALSE;
3360 *pneeded = TRUE;
3361 return TRUE;
3362 }
3363
3364 if (type == (N_UNDF | N_EXT))
3365 {
3366 bfd_vma value;
3367
3368 value = GET_WORD (abfd, p->e_value);
3369 if (value != 0)
3370 {
3371 /* This symbol is common in the object from the archive
3372 file. */
3373 if (h->type == bfd_link_hash_undefined)
3374 {
3375 bfd *symbfd;
3376 unsigned int power;
3377
3378 symbfd = h->u.undef.abfd;
3379 if (symbfd == NULL)
3380 {
3381 /* This symbol was created as undefined from
3382 outside BFD. We assume that we should link
3383 in the object file. This is done for the -u
3384 option in the linker. */
0e144ba7
AM		 3385 if (!(*info->callbacks
3386 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3387 return FALSE;
3388 *pneeded = TRUE;
3389 return TRUE;
3390 }
3391 /* Turn the current link symbol into a common
3392 symbol. It is already on the undefs list. */
3393 h->type = bfd_link_hash_common;
a50b1753 3394 h->u.c.p = (struct bfd_link_hash_common_entry *)
0e144ba7
AM		 3395 bfd_hash_allocate (&info->hash->table,
3396 sizeof (struct bfd_link_hash_common_entry));
116c20d2
NC		 3397 if (h->u.c.p == NULL)
3398 return FALSE;
3399
3400 h->u.c.size = value;
3401
3402 /* FIXME: This isn't quite right. The maximum
3403 alignment of a common symbol should be set by the
3404 architecture of the output file, not of the input
3405 file. */
3406 power = bfd_log2 (value);
3407 if (power > bfd_get_arch_info (abfd)->section_align_power)
3408 power = bfd_get_arch_info (abfd)->section_align_power;
3409 h->u.c.p->alignment_power = power;
3410
3411 h->u.c.p->section = bfd_make_section_old_way (symbfd,
3412 "COMMON");
3413 }
3414 else
3415 {
3416 /* Adjust the size of the common symbol if
3417 necessary. */
3418 if (value > h->u.c.size)
3419 h->u.c.size = value;
3420 }
3421 }
3422 }
3423
3424 if (type == N_WEAKA
3425 || type == N_WEAKT
3426 || type == N_WEAKD
3427 || type == N_WEAKB)
3428 {
3429 /* This symbol is weak but defined. We must pull it in if
3430 the current link symbol is undefined, but we don't want
3431 it if the current link symbol is common. */
3432 if (h->type == bfd_link_hash_undefined)
3433 {
0e144ba7
AM		 3434 if (!(*info->callbacks
3435 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3436 return FALSE;
3437 *pneeded = TRUE;
3438 return TRUE;
3439 }
3440 }
3441 }
3442
3443 /* We do not need this object file. */
3444 return TRUE;
3445}
3446/* Check a single archive element to see if we need to include it in
3447 the link. *PNEEDED is set according to whether this element is
3448 needed in the link or not. This is called from
3449 _bfd_generic_link_add_archive_symbols. */
3450
3451static bfd_boolean
3452aout_link_check_archive_element (bfd *abfd,
3453 struct bfd_link_info *info,
13e570f8
AM		 3454 struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
3455 const char *name ATTRIBUTE_UNUSED,
116c20d2
NC		 3456 bfd_boolean *pneeded)
3457{
0e144ba7
AM		 3458 bfd *oldbfd;
3459 bfd_boolean needed;
5d3236ee 3460
0e144ba7 3461 if (!aout_get_external_symbols (abfd))
116c20d2
NC		 3462 return FALSE;
3463
0e144ba7
AM		 3464 oldbfd = abfd;
3465 if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd))
116c20d2
NC		 3466 return FALSE;
3467
0e144ba7
AM		 3468 needed = *pneeded;
3469 if (needed)
116c20d2 3470 {
5d3236ee
DK		 3471 /* Potentially, the add_archive_element hook may have set a
3472 substitute BFD for us. */
0e144ba7
AM		 3473 if (abfd != oldbfd)
3474 {
3475 if (!info->keep_memory
3476 && !aout_link_free_symbols (oldbfd))
3477 return FALSE;
3478 if (!aout_get_external_symbols (abfd))
3479 return FALSE;
3480 }
3481 if (!aout_link_add_symbols (abfd, info))
116c20d2
NC		 3482 return FALSE;
3483 }
3484
0e144ba7 3485 if (!info->keep_memory || !needed)
116c20d2 3486 {
0e144ba7 3487 if (!aout_link_free_symbols (abfd))
116c20d2
NC		 3488 return FALSE;
3489 }
3490
3491 return TRUE;
3492}
3493
3494/* Given an a.out BFD, add symbols to the global hash table as
3495 appropriate. */
3496
3497bfd_boolean
3498NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
3499{
3500 switch (bfd_get_format (abfd))
3501 {
3502 case bfd_object:
3503 return aout_link_add_object_symbols (abfd, info);
3504 case bfd_archive:
3505 return _bfd_generic_link_add_archive_symbols
3506 (abfd, info, aout_link_check_archive_element);
3507 default:
3508 bfd_set_error (bfd_error_wrong_format);
3509 return FALSE;
3510 }
3511}
3512\f
3513/* A hash table used for header files with N_BINCL entries. */
3514
3515struct aout_link_includes_table
3516{
3517 struct bfd_hash_table root;
3518};
3519
3520/* A linked list of totals that we have found for a particular header
3521 file. */
3522
3523struct aout_link_includes_totals
3524{
3525 struct aout_link_includes_totals *next;
3526 bfd_vma total;
3527};
3528
3529/* An entry in the header file hash table. */
3530
3531struct aout_link_includes_entry
3532{
3533 struct bfd_hash_entry root;
3534 /* List of totals we have found for this file. */
3535 struct aout_link_includes_totals *totals;
3536};
3537
3538/* Look up an entry in an the header file hash table. */
3539
3540#define aout_link_includes_lookup(table, string, create, copy) \
3541 ((struct aout_link_includes_entry *) \
3542 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
3543
3544/* During the final link step we need to pass around a bunch of
3545 information, so we do it in an instance of this structure. */
3546
3547struct aout_final_link_info
3548{
3549 /* General link information. */
3550 struct bfd_link_info *info;
3551 /* Output bfd. */
252b5132
RH		 3552 bfd *output_bfd;
3553 /* Reloc file positions. */
3554 file_ptr treloff, dreloff;
3555 /* File position of symbols. */
3556 file_ptr symoff;
3557 /* String table. */
3558 struct bfd_strtab_hash *strtab;
3559 /* Header file hash table. */
3560 struct aout_link_includes_table includes;
3561 /* A buffer large enough to hold the contents of any section. */
3562 bfd_byte *contents;
3563 /* A buffer large enough to hold the relocs of any section. */
116c20d2 3564 void * relocs;
252b5132
RH		 3565 /* A buffer large enough to hold the symbol map of any input BFD. */
3566 int *symbol_map;
3567 /* A buffer large enough to hold output symbols of any input BFD. */
3568 struct external_nlist *output_syms;
3569};
3570
252b5132
RH		 3571/* The function to create a new entry in the header file hash table. */
3572
3573static struct bfd_hash_entry *
116c20d2
NC		 3574aout_link_includes_newfunc (struct bfd_hash_entry *entry,
3575 struct bfd_hash_table *table,
3576 const char *string)
252b5132
RH		 3577{
3578 struct aout_link_includes_entry *ret =
3579 (struct aout_link_includes_entry *) entry;
3580
3581 /* Allocate the structure if it has not already been allocated by a
3582 subclass. */
116c20d2 3583 if (ret == NULL)
a50b1753 3584 ret = (struct aout_link_includes_entry *)
07d6d2b8 3585 bfd_hash_allocate (table, sizeof (* ret));
116c20d2
NC		 3586 if (ret == NULL)
3587 return NULL;
252b5132
RH		 3588
3589 /* Call the allocation method of the superclass. */
3590 ret = ((struct aout_link_includes_entry *)
3591 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
3592 if (ret)
3593 {
3594 /* Set local fields. */
3595 ret->totals = NULL;
3596 }
3597
3598 return (struct bfd_hash_entry *) ret;
3599}
3600
116c20d2
NC		 3601/* Write out a symbol that was not associated with an a.out input
3602 object. */
252b5132 3603
116c20d2 3604static bfd_boolean
7686d77d 3605aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data)
252b5132 3606{
7686d77d 3607 struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh;
57402f1e 3608 struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data;
116c20d2
NC		 3609 bfd *output_bfd;
3610 int type;
3611 bfd_vma val;
3612 struct external_nlist outsym;
3613 bfd_size_type indx;
986f0783 3614 size_t amt;
252b5132 3615
116c20d2
NC		 3616 if (h->root.type == bfd_link_hash_warning)
3617 {
3618 h = (struct aout_link_hash_entry *) h->root.u.i.link;
3619 if (h->root.type == bfd_link_hash_new)
3620 return TRUE;
3621 }
252b5132 3622
57402f1e 3623 output_bfd = flaginfo->output_bfd;
252b5132 3624
116c20d2 3625 if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
252b5132 3626 {
116c20d2 3627 if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
57402f1e 3628 (output_bfd, flaginfo->info, h)))
252b5132 3629 {
116c20d2
NC		 3630 /* FIXME: No way to handle errors. */
3631 abort ();
252b5132 3632 }
116c20d2 3633 }
252b5132 3634
116c20d2
NC		 3635 if (h->written)
3636 return TRUE;
252b5132 3637
116c20d2 3638 h->written = TRUE;
252b5132 3639
116c20d2
NC		 3640 /* An indx of -2 means the symbol must be written. */
3641 if (h->indx != -2
57402f1e
NC		 3642 && (flaginfo->info->strip == strip_all
3643 || (flaginfo->info->strip == strip_some
3644 && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string,
116c20d2
NC		 3645 FALSE, FALSE) == NULL)))
3646 return TRUE;
252b5132 3647
116c20d2 3648 switch (h->root.type)
252b5132 3649 {
116c20d2
NC		 3650 default:
3651 case bfd_link_hash_warning:
3652 abort ();
3653 /* Avoid variable not initialized warnings. */
3654 return TRUE;
3655 case bfd_link_hash_new:
3656 /* This can happen for set symbols when sets are not being
07d6d2b8 3657 built. */
116c20d2
NC		 3658 return TRUE;
3659 case bfd_link_hash_undefined:
3660 type = N_UNDF | N_EXT;
3661 val = 0;
3662 break;
3663 case bfd_link_hash_defined:
3664 case bfd_link_hash_defweak:
3665 {
3666 asection *sec;
252b5132 3667
116c20d2
NC		 3668 sec = h->root.u.def.section->output_section;
3669 BFD_ASSERT (bfd_is_abs_section (sec)
3670 || sec->owner == output_bfd);
3671 if (sec == obj_textsec (output_bfd))
3672 type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
3673 else if (sec == obj_datasec (output_bfd))
3674 type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
3675 else if (sec == obj_bsssec (output_bfd))
3676 type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
3677 else
3678 type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
3679 type |= N_EXT;
3680 val = (h->root.u.def.value
3681 + sec->vma
3682 + h->root.u.def.section->output_offset);
3683 }
3684 break;
3685 case bfd_link_hash_common:
3686 type = N_UNDF | N_EXT;
3687 val = h->root.u.c.size;
3688 break;
3689 case bfd_link_hash_undefweak:
3690 type = N_WEAKU;
3691 val = 0;
c38eb2a6 3692 break;
116c20d2
NC		 3693 case bfd_link_hash_indirect:
3694 /* We ignore these symbols, since the indirected symbol is
3695 already in the hash table. */
3696 return TRUE;
3697 }
252b5132 3698
116c20d2
NC		 3699 H_PUT_8 (output_bfd, type, outsym.e_type);
3700 H_PUT_8 (output_bfd, 0, outsym.e_other);
3701 H_PUT_16 (output_bfd, 0, outsym.e_desc);
57402f1e 3702 indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string,
116c20d2
NC		 3703 FALSE);
3704 if (indx == - (bfd_size_type) 1)
3705 /* FIXME: No way to handle errors. */
3706 abort ();
252b5132 3707
116c20d2
NC		 3708 PUT_WORD (output_bfd, indx, outsym.e_strx);
3709 PUT_WORD (output_bfd, val, outsym.e_value);
252b5132 3710
116c20d2 3711 amt = EXTERNAL_NLIST_SIZE;
57402f1e 3712 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0
116c20d2
NC		 3713 || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt)
3714 /* FIXME: No way to handle errors. */
3715 abort ();
252b5132 3716
57402f1e 3717 flaginfo->symoff += EXTERNAL_NLIST_SIZE;
116c20d2
NC		 3718 h->indx = obj_aout_external_sym_count (output_bfd);
3719 ++obj_aout_external_sym_count (output_bfd);
252b5132 3720
116c20d2
NC		 3721 return TRUE;
3722}
252b5132 3723
116c20d2 3724/* Handle a link order which is supposed to generate a reloc. */
252b5132 3725
116c20d2 3726static bfd_boolean
57402f1e 3727aout_link_reloc_link_order (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3728 asection *o,
3729 struct bfd_link_order *p)
3730{
3731 struct bfd_link_order_reloc *pr;
3732 int r_index;
3733 int r_extern;
3734 reloc_howto_type *howto;
3735 file_ptr *reloff_ptr = NULL;
3736 struct reloc_std_external srel;
3737 struct reloc_ext_external erel;
3738 void * rel_ptr;
986f0783 3739 size_t amt;
252b5132 3740
116c20d2 3741 pr = p->u.reloc.p;
252b5132 3742
116c20d2
NC		 3743 if (p->type == bfd_section_reloc_link_order)
3744 {
3745 r_extern = 0;
3746 if (bfd_is_abs_section (pr->u.section))
3747 r_index = N_ABS | N_EXT;
3748 else
3749 {
57402f1e 3750 BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd);
116c20d2
NC		 3751 r_index = pr->u.section->target_index;
3752 }
3753 }
3754 else
3755 {
3756 struct aout_link_hash_entry *h;
252b5132 3757
116c20d2
NC		 3758 BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
3759 r_extern = 1;
3760 h = ((struct aout_link_hash_entry *)
57402f1e 3761 bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info,
116c20d2
NC		 3762 pr->u.name, FALSE, FALSE, TRUE));
3763 if (h != NULL
3764 && h->indx >= 0)
3765 r_index = h->indx;
3766 else if (h != NULL)
3767 {
3768 /* We decided to strip this symbol, but it turns out that we
3769 can't. Note that we lose the other and desc information
3770 here. I don't think that will ever matter for a global
3771 symbol. */
3772 h->indx = -2;
3773 h->written = FALSE;
57402f1e 3774 if (!aout_link_write_other_symbol (&h->root.root, flaginfo))
116c20d2
NC		 3775 return FALSE;
3776 r_index = h->indx;
3777 }
3778 else
3779 {
1a72702b
AM		 3780 (*flaginfo->info->callbacks->unattached_reloc)
3781 (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0);
116c20d2
NC		 3782 r_index = 0;
3783 }
3784 }
252b5132 3785
57402f1e 3786 howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc);
116c20d2 3787 if (howto == 0)
252b5132 3788 {
116c20d2
NC		 3789 bfd_set_error (bfd_error_bad_value);
3790 return FALSE;
252b5132
RH		 3791 }
3792
57402f1e
NC		 3793 if (o == obj_textsec (flaginfo->output_bfd))
3794 reloff_ptr = &flaginfo->treloff;
3795 else if (o == obj_datasec (flaginfo->output_bfd))
3796 reloff_ptr = &flaginfo->dreloff;
116c20d2
NC		 3797 else
3798 abort ();
3799
57402f1e 3800 if (obj_reloc_entry_size (flaginfo->output_bfd) == RELOC_STD_SIZE)
252b5132 3801 {
116c20d2 3802#ifdef MY_put_reloc
57402f1e 3803 MY_put_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset, howto,
116c20d2
NC		 3804 &srel);
3805#else
3806 {
3807 int r_pcrel;
3808 int r_baserel;
3809 int r_jmptable;
3810 int r_relative;
dfa85db1 3811 unsigned int r_length;
252b5132 3812
116c20d2
NC		 3813 r_pcrel = (int) howto->pc_relative;
3814 r_baserel = (howto->type & 8) != 0;
3815 r_jmptable = (howto->type & 16) != 0;
3816 r_relative = (howto->type & 32) != 0;
dfa85db1
GN		 3817 if (bfd_get_reloc_size (howto) != 8)
3818 r_length = howto->size; /* Size as a power of two. */
3819 else
3820 r_length = 3;
252b5132 3821
57402f1e
NC		 3822 PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address);
3823 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3824 {
3825 srel.r_index[0] = r_index >> 16;
3826 srel.r_index[1] = r_index >> 8;
3827 srel.r_index[2] = r_index;
3828 srel.r_type[0] =
3829 ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
3830 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
3831 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
3832 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
3833 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
3834 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
3835 }
3836 else
3837 {
3838 srel.r_index[2] = r_index >> 16;
3839 srel.r_index[1] = r_index >> 8;
3840 srel.r_index[0] = r_index;
3841 srel.r_type[0] =
3842 ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
3843 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
3844 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
3845 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
3846 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
3847 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
3848 }
3849 }
3850#endif
3851 rel_ptr = (void *) &srel;
252b5132 3852
116c20d2
NC		 3853 /* We have to write the addend into the object file, since
3854 standard a.out relocs are in place. It would be more
3855 reliable if we had the current contents of the file here,
3856 rather than assuming zeroes, but we can't read the file since
3857 it was opened using bfd_openw. */
3858 if (pr->addend != 0)
252b5132 3859 {
116c20d2
NC		 3860 bfd_size_type size;
3861 bfd_reloc_status_type r;
3862 bfd_byte *buf;
3863 bfd_boolean ok;
3864
3865 size = bfd_get_reloc_size (howto);
a50b1753 3866 buf = (bfd_byte *) bfd_zmalloc (size);
6346d5ca 3867 if (buf == NULL && size != 0)
116c20d2 3868 return FALSE;
57402f1e 3869 r = MY_relocate_contents (howto, flaginfo->output_bfd,
116c20d2
NC		 3870 (bfd_vma) pr->addend, buf);
3871 switch (r)
252b5132 3872 {
116c20d2
NC		 3873 case bfd_reloc_ok:
3874 break;
3875 default:
3876 case bfd_reloc_outofrange:
3877 abort ();
3878 case bfd_reloc_overflow:
1a72702b
AM		 3879 (*flaginfo->info->callbacks->reloc_overflow)
3880 (flaginfo->info, NULL,
3881 (p->type == bfd_section_reloc_link_order
fd361982 3882 ? bfd_section_name (pr->u.section)
1a72702b
AM		 3883 : pr->u.name),
3884 howto->name, pr->addend, NULL, NULL, (bfd_vma) 0);
116c20d2 3885 break;
252b5132 3886 }
57402f1e 3887 ok = bfd_set_section_contents (flaginfo->output_bfd, o, (void *) buf,
116c20d2
NC		 3888 (file_ptr) p->offset, size);
3889 free (buf);
3890 if (! ok)
3891 return FALSE;
252b5132
RH		 3892 }
3893 }
116c20d2 3894 else
252b5132 3895 {
116c20d2 3896#ifdef MY_put_ext_reloc
57402f1e 3897 MY_put_ext_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset,
116c20d2
NC		 3898 howto, &erel, pr->addend);
3899#else
57402f1e 3900 PUT_WORD (flaginfo->output_bfd, p->offset, erel.r_address);
252b5132 3901
57402f1e 3902 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3903 {
3904 erel.r_index[0] = r_index >> 16;
3905 erel.r_index[1] = r_index >> 8;
3906 erel.r_index[2] = r_index;
3907 erel.r_type[0] =
3908 ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
3909 | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG));
3910 }
3911 else
3912 {
3913 erel.r_index[2] = r_index >> 16;
3914 erel.r_index[1] = r_index >> 8;
3915 erel.r_index[0] = r_index;
3916 erel.r_type[0] =
3917 (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
3918 | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
3919 }
252b5132 3920
57402f1e 3921 PUT_WORD (flaginfo->output_bfd, (bfd_vma) pr->addend, erel.r_addend);
116c20d2 3922#endif /* MY_put_ext_reloc */
252b5132 3923
116c20d2 3924 rel_ptr = (void *) &erel;
252b5132 3925 }
252b5132 3926
57402f1e
NC		 3927 amt = obj_reloc_entry_size (flaginfo->output_bfd);
3928 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
3929 || bfd_bwrite (rel_ptr, amt, flaginfo->output_bfd) != amt)
116c20d2 3930 return FALSE;
252b5132 3931
57402f1e 3932 *reloff_ptr += obj_reloc_entry_size (flaginfo->output_bfd);
252b5132 3933
116c20d2
NC		 3934 /* Assert that the relocs have not run into the symbols, and that n
3935 the text relocs have not run into the data relocs. */
57402f1e
NC		 3936 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
3937 && (reloff_ptr != &flaginfo->treloff
116c20d2 3938 || (*reloff_ptr
57402f1e 3939 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 3940
3941 return TRUE;
252b5132
RH		 3942}
3943
116c20d2 3944/* Get the section corresponding to a reloc index. */
252b5132 3945
116c20d2
NC		 3946static INLINE asection *
3947aout_reloc_index_to_section (bfd *abfd, int indx)
252b5132 3948{
116c20d2 3949 switch (indx & N_TYPE)
252b5132 3950 {
116c20d2
NC		 3951 case N_TEXT: return obj_textsec (abfd);
3952 case N_DATA: return obj_datasec (abfd);
3953 case N_BSS: return obj_bsssec (abfd);
3954 case N_ABS:
3955 case N_UNDF: return bfd_abs_section_ptr;
3956 default: abort ();
252b5132 3957 }
116c20d2 3958 return NULL;
252b5132
RH		 3959}
3960
116c20d2 3961/* Relocate an a.out section using standard a.out relocs. */
252b5132 3962
b34976b6 3963static bfd_boolean
57402f1e 3964aout_link_input_section_std (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3965 bfd *input_bfd,
3966 asection *input_section,
3967 struct reloc_std_external *relocs,
3968 bfd_size_type rel_size,
3969 bfd_byte *contents)
252b5132 3970{
116c20d2
NC		 3971 bfd_boolean (*check_dynamic_reloc)
3972 (struct bfd_link_info *, bfd *, asection *,
3973 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
3974 bfd_vma *);
252b5132 3975 bfd *output_bfd;
116c20d2
NC		 3976 bfd_boolean relocatable;
3977 struct external_nlist *syms;
252b5132 3978 char *strings;
116c20d2 3979 struct aout_link_hash_entry **sym_hashes;
252b5132 3980 int *symbol_map;
116c20d2
NC		 3981 bfd_size_type reloc_count;
3982 struct reloc_std_external *rel;
3983 struct reloc_std_external *rel_end;
252b5132 3984
57402f1e 3985 output_bfd = flaginfo->output_bfd;
116c20d2 3986 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
252b5132 3987
116c20d2
NC		 3988 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE);
3989 BFD_ASSERT (input_bfd->xvec->header_byteorder
3990 == output_bfd->xvec->header_byteorder);
252b5132 3991
0e1862bb 3992 relocatable = bfd_link_relocatable (flaginfo->info);
116c20d2
NC		 3993 syms = obj_aout_external_syms (input_bfd);
3994 strings = obj_aout_external_strings (input_bfd);
3995 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 3996 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 3997
3998 reloc_count = rel_size / RELOC_STD_SIZE;
3999 rel = relocs;
4000 rel_end = rel + reloc_count;
4001 for (; rel < rel_end; rel++)
252b5132 4002 {
116c20d2
NC		 4003 bfd_vma r_addr;
4004 int r_index;
4005 int r_extern;
4006 int r_pcrel;
4007 int r_baserel = 0;
4008 reloc_howto_type *howto;
4009 struct aout_link_hash_entry *h = NULL;
4010 bfd_vma relocation;
4011 bfd_reloc_status_type r;
252b5132 4012
116c20d2 4013 r_addr = GET_SWORD (input_bfd, rel->r_address);
252b5132 4014
116c20d2
NC		 4015#ifdef MY_reloc_howto
4016 howto = MY_reloc_howto (input_bfd, rel, r_index, r_extern, r_pcrel);
4017#else
4018 {
4019 int r_jmptable;
4020 int r_relative;
4021 int r_length;
4022 unsigned int howto_idx;
252b5132 4023
116c20d2
NC		 4024 if (bfd_header_big_endian (input_bfd))
4025 {
4026 r_index = (((unsigned int) rel->r_index[0] << 16)
4027 | ((unsigned int) rel->r_index[1] << 8)
4028 | rel->r_index[2]);
4029 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
4030 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
4031 r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
4032 r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
4033 r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
4034 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
4035 >> RELOC_STD_BITS_LENGTH_SH_BIG);
4036 }
4037 else
4038 {
4039 r_index = (((unsigned int) rel->r_index[2] << 16)
4040 | ((unsigned int) rel->r_index[1] << 8)
4041 | rel->r_index[0]);
4042 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
4043 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
4044 r_baserel = (0 != (rel->r_type[0]
4045 & RELOC_STD_BITS_BASEREL_LITTLE));
4046 r_jmptable= (0 != (rel->r_type[0]
4047 & RELOC_STD_BITS_JMPTABLE_LITTLE));
4048 r_relative= (0 != (rel->r_type[0]
4049 & RELOC_STD_BITS_RELATIVE_LITTLE));
4050 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
4051 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
4052 }
252b5132 4053
116c20d2
NC		 4054 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
4055 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 4056 if (howto_idx < TABLE_SIZE (howto_table_std))
4057 howto = howto_table_std + howto_idx;
4058 else
4059 howto = NULL;
116c20d2
NC		 4060 }
4061#endif
252b5132 4062
ad756e3f
AM		 4063 if (howto == NULL)
4064 {
0aa13fee
AM		 4065 _bfd_error_handler (_("%pB: unsupported relocation type"),
4066 input_bfd);
ad756e3f
AM		 4067 bfd_set_error (bfd_error_bad_value);
4068 return FALSE;
4069 }
4070
116c20d2 4071 if (relocatable)
252b5132 4072 {
116c20d2
NC		 4073 /* We are generating a relocatable output file, and must
4074 modify the reloc accordingly. */
4075 if (r_extern)
252b5132 4076 {
116c20d2
NC		 4077 /* If we know the symbol this relocation is against,
4078 convert it into a relocation against a section. This
4079 is what the native linker does. */
4080 h = sym_hashes[r_index];
4081 if (h != NULL
4082 && (h->root.type == bfd_link_hash_defined
4083 || h->root.type == bfd_link_hash_defweak))
252b5132 4084 {
252b5132
RH		 4085 asection *output_section;
4086
116c20d2
NC		 4087 /* Change the r_extern value. */
4088 if (bfd_header_big_endian (output_bfd))
4089 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_BIG;
4090 else
4091 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE;
252b5132 4092
116c20d2
NC		 4093 /* Compute a new r_index. */
4094 output_section = h->root.u.def.section->output_section;
252b5132 4095 if (output_section == obj_textsec (output_bfd))
116c20d2 4096 r_index = N_TEXT;
252b5132 4097 else if (output_section == obj_datasec (output_bfd))
116c20d2 4098 r_index = N_DATA;
252b5132 4099 else if (output_section == obj_bsssec (output_bfd))
116c20d2 4100 r_index = N_BSS;
252b5132 4101 else
116c20d2 4102 r_index = N_ABS;
252b5132 4103
116c20d2
NC		 4104 /* Add the symbol value and the section VMA to the
4105 addend stored in the contents. */
4106 relocation = (h->root.u.def.value
4107 + output_section->vma
4108 + h->root.u.def.section->output_offset);
252b5132 4109 }
116c20d2 4110 else
252b5132 4111 {
116c20d2
NC		 4112 /* We must change r_index according to the symbol
4113 map. */
4114 r_index = symbol_map[r_index];
252b5132 4115
116c20d2 4116 if (r_index == -1)
252b5132 4117 {
116c20d2 4118 if (h != NULL)
252b5132 4119 {
116c20d2 4120 /* We decided to strip this symbol, but it
07d6d2b8
AM		 4121 turns out that we can't. Note that we
4122 lose the other and desc information here.
4123 I don't think that will ever matter for a
4124 global symbol. */
116c20d2 4125 if (h->indx < 0)
252b5132 4126 {
116c20d2
NC		 4127 h->indx = -2;
4128 h->written = FALSE;
7686d77d 4129 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4130 flaginfo))
116c20d2 4131 return FALSE;
252b5132 4132 }
116c20d2
NC		 4133 r_index = h->indx;
4134 }
4135 else
4136 {
4137 const char *name;
4138
4139 name = strings + GET_WORD (input_bfd,
4140 syms[r_index].e_strx);
1a72702b
AM		 4141 (*flaginfo->info->callbacks->unattached_reloc)
4142 (flaginfo->info, name,
4143 input_bfd, input_section, r_addr);
116c20d2 4144 r_index = 0;
252b5132
RH		 4145 }
4146 }
116c20d2
NC		 4147
4148 relocation = 0;
252b5132
RH		 4149 }
4150
116c20d2
NC		 4151 /* Write out the new r_index value. */
4152 if (bfd_header_big_endian (output_bfd))
252b5132 4153 {
116c20d2
NC		 4154 rel->r_index[0] = r_index >> 16;
4155 rel->r_index[1] = r_index >> 8;
4156 rel->r_index[2] = r_index;
252b5132
RH		 4157 }
4158 else
4159 {
116c20d2
NC		 4160 rel->r_index[2] = r_index >> 16;
4161 rel->r_index[1] = r_index >> 8;
4162 rel->r_index[0] = r_index;
252b5132
RH		 4163 }
4164 }
252b5132 4165 else
116c20d2
NC		 4166 {
4167 asection *section;
252b5132 4168
116c20d2
NC		 4169 /* This is a relocation against a section. We must
4170 adjust by the amount that the section moved. */
4171 section = aout_reloc_index_to_section (input_bfd, r_index);
4172 relocation = (section->output_section->vma
4173 + section->output_offset
4174 - section->vma);
4175 }
252b5132 4176
116c20d2
NC		 4177 /* Change the address of the relocation. */
4178 PUT_WORD (output_bfd,
4179 r_addr + input_section->output_offset,
4180 rel->r_address);
252b5132 4181
116c20d2
NC		 4182 /* Adjust a PC relative relocation by removing the reference
4183 to the original address in the section and including the
4184 reference to the new address. */
4185 if (r_pcrel)
4186 relocation -= (input_section->output_section->vma
4187 + input_section->output_offset
4188 - input_section->vma);
e92d460e 4189
116c20d2
NC		 4190#ifdef MY_relocatable_reloc
4191 MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
4192#endif
252b5132 4193
116c20d2
NC		 4194 if (relocation == 0)
4195 r = bfd_reloc_ok;
4196 else
4197 r = MY_relocate_contents (howto,
4198 input_bfd, relocation,
4199 contents + r_addr);
252b5132 4200 }
116c20d2
NC		 4201 else
4202 {
4203 bfd_boolean hundef;
252b5132 4204
116c20d2
NC		 4205 /* We are generating an executable, and must do a full
4206 relocation. */
4207 hundef = FALSE;
252b5132 4208
116c20d2
NC		 4209 if (r_extern)
4210 {
4211 h = sym_hashes[r_index];
252b5132 4212
116c20d2
NC		 4213 if (h != NULL
4214 && (h->root.type == bfd_link_hash_defined
4215 || h->root.type == bfd_link_hash_defweak))
4216 {
4217 relocation = (h->root.u.def.value
4218 + h->root.u.def.section->output_section->vma
4219 + h->root.u.def.section->output_offset);
4220 }
4221 else if (h != NULL
4222 && h->root.type == bfd_link_hash_undefweak)
4223 relocation = 0;
4224 else
4225 {
4226 hundef = TRUE;
4227 relocation = 0;
4228 }
4229 }
4230 else
4231 {
4232 asection *section;
252b5132 4233
116c20d2
NC		 4234 section = aout_reloc_index_to_section (input_bfd, r_index);
4235 relocation = (section->output_section->vma
4236 + section->output_offset
4237 - section->vma);
4238 if (r_pcrel)
4239 relocation += input_section->vma;
4240 }
252b5132 4241
116c20d2
NC		 4242 if (check_dynamic_reloc != NULL)
4243 {
4244 bfd_boolean skip;
252b5132 4245
116c20d2 4246 if (! ((*check_dynamic_reloc)
57402f1e 4247 (flaginfo->info, input_bfd, input_section, h,
116c20d2
NC		 4248 (void *) rel, contents, &skip, &relocation)))
4249 return FALSE;
4250 if (skip)
4251 continue;
4252 }
252b5132 4253
116c20d2 4254 /* Now warn if a global symbol is undefined. We could not
07d6d2b8
AM		 4255 do this earlier, because check_dynamic_reloc might want
4256 to skip this reloc. */
0e1862bb 4257 if (hundef && ! bfd_link_pic (flaginfo->info) && ! r_baserel)
116c20d2
NC		 4258 {
4259 const char *name;
252b5132 4260
116c20d2
NC		 4261 if (h != NULL)
4262 name = h->root.root.string;
4263 else
4264 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4265 (*flaginfo->info->callbacks->undefined_symbol)
4266 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
116c20d2 4267 }
252b5132 4268
116c20d2
NC		 4269 r = MY_final_link_relocate (howto,
4270 input_bfd, input_section,
4271 contents, r_addr, relocation,
4272 (bfd_vma) 0);
252b5132 4273 }
252b5132 4274
116c20d2
NC		 4275 if (r != bfd_reloc_ok)
4276 {
4277 switch (r)
4278 {
4279 default:
4280 case bfd_reloc_outofrange:
4281 abort ();
4282 case bfd_reloc_overflow:
4283 {
4284 const char *name;
252b5132 4285
116c20d2
NC		 4286 if (h != NULL)
4287 name = NULL;
4288 else if (r_extern)
4289 name = strings + GET_WORD (input_bfd,
4290 syms[r_index].e_strx);
4291 else
4292 {
4293 asection *s;
252b5132 4294
116c20d2 4295 s = aout_reloc_index_to_section (input_bfd, r_index);
fd361982 4296 name = bfd_section_name (s);
116c20d2 4297 }
1a72702b
AM		 4298 (*flaginfo->info->callbacks->reloc_overflow)
4299 (flaginfo->info, (h ? &h->root : NULL), name, howto->name,
4300 (bfd_vma) 0, input_bfd, input_section, r_addr);
116c20d2
NC		 4301 }
4302 break;
4303 }
4304 }
252b5132
RH		 4305 }
4306
b34976b6 4307 return TRUE;
252b5132
RH		 4308}
4309
116c20d2 4310/* Relocate an a.out section using extended a.out relocs. */
252b5132 4311
b34976b6 4312static bfd_boolean
57402f1e 4313aout_link_input_section_ext (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4314 bfd *input_bfd,
4315 asection *input_section,
4316 struct reloc_ext_external *relocs,
4317 bfd_size_type rel_size,
4318 bfd_byte *contents)
252b5132 4319{
b34976b6 4320 bfd_boolean (*check_dynamic_reloc)
116c20d2
NC		 4321 (struct bfd_link_info *, bfd *, asection *,
4322 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
4323 bfd_vma *);
252b5132 4324 bfd *output_bfd;
1049f94e 4325 bfd_boolean relocatable;
252b5132
RH		 4326 struct external_nlist *syms;
4327 char *strings;
4328 struct aout_link_hash_entry **sym_hashes;
4329 int *symbol_map;
4330 bfd_size_type reloc_count;
116c20d2
NC		 4331 struct reloc_ext_external *rel;
4332 struct reloc_ext_external *rel_end;
252b5132 4333
57402f1e 4334 output_bfd = flaginfo->output_bfd;
252b5132
RH		 4335 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
4336
116c20d2 4337 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_EXT_SIZE);
252b5132
RH		 4338 BFD_ASSERT (input_bfd->xvec->header_byteorder
4339 == output_bfd->xvec->header_byteorder);
4340
0e1862bb 4341 relocatable = bfd_link_relocatable (flaginfo->info);
252b5132
RH		 4342 syms = obj_aout_external_syms (input_bfd);
4343 strings = obj_aout_external_strings (input_bfd);
4344 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4345 symbol_map = flaginfo->symbol_map;
252b5132 4346
116c20d2 4347 reloc_count = rel_size / RELOC_EXT_SIZE;
252b5132
RH		 4348 rel = relocs;
4349 rel_end = rel + reloc_count;
4350 for (; rel < rel_end; rel++)
4351 {
4352 bfd_vma r_addr;
4353 int r_index;
4354 int r_extern;
116c20d2
NC		 4355 unsigned int r_type;
4356 bfd_vma r_addend;
252b5132 4357 struct aout_link_hash_entry *h = NULL;
116c20d2 4358 asection *r_section = NULL;
252b5132 4359 bfd_vma relocation;
252b5132
RH		 4360
4361 r_addr = GET_SWORD (input_bfd, rel->r_address);
4362
116c20d2
NC		 4363 if (bfd_header_big_endian (input_bfd))
4364 {
4365 r_index = (((unsigned int) rel->r_index[0] << 16)
4366 | ((unsigned int) rel->r_index[1] << 8)
4367 | rel->r_index[2]);
4368 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
4369 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
4370 >> RELOC_EXT_BITS_TYPE_SH_BIG);
4371 }
4372 else
4373 {
4374 r_index = (((unsigned int) rel->r_index[2] << 16)
4375 | ((unsigned int) rel->r_index[1] << 8)
4376 | rel->r_index[0]);
4377 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
4378 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
4379 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
4380 }
252b5132 4381
116c20d2 4382 r_addend = GET_SWORD (input_bfd, rel->r_addend);
252b5132 4383
ad756e3f
AM		 4384 if (r_type >= TABLE_SIZE (howto_table_ext))
4385 {
0aa13fee
AM		 4386 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4387 input_bfd, r_type);
ad756e3f
AM		 4388 bfd_set_error (bfd_error_bad_value);
4389 return FALSE;
4390 }
252b5132 4391
1049f94e 4392 if (relocatable)
252b5132 4393 {
1049f94e 4394 /* We are generating a relocatable output file, and must
252b5132 4395 modify the reloc accordingly. */
116c20d2
NC		 4396 if (r_extern
4397 || r_type == (unsigned int) RELOC_BASE10
4398 || r_type == (unsigned int) RELOC_BASE13
4399 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 4400 {
4401 /* If we know the symbol this relocation is against,
4402 convert it into a relocation against a section. This
4403 is what the native linker does. */
116c20d2
NC		 4404 if (r_type == (unsigned int) RELOC_BASE10
4405 || r_type == (unsigned int) RELOC_BASE13
4406 || r_type == (unsigned int) RELOC_BASE22)
4407 h = NULL;
4408 else
4409 h = sym_hashes[r_index];
4410 if (h != NULL
252b5132
RH		 4411 && (h->root.type == bfd_link_hash_defined
4412 || h->root.type == bfd_link_hash_defweak))
4413 {
4414 asection *output_section;
4415
4416 /* Change the r_extern value. */
4417 if (bfd_header_big_endian (output_bfd))
116c20d2 4418 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_BIG;
252b5132 4419 else
116c20d2 4420 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE;
252b5132
RH		 4421
4422 /* Compute a new r_index. */
4423 output_section = h->root.u.def.section->output_section;
4424 if (output_section == obj_textsec (output_bfd))
4425 r_index = N_TEXT;
4426 else if (output_section == obj_datasec (output_bfd))
4427 r_index = N_DATA;
4428 else if (output_section == obj_bsssec (output_bfd))
4429 r_index = N_BSS;
4430 else
4431 r_index = N_ABS;
4432
4433 /* Add the symbol value and the section VMA to the
116c20d2 4434 addend. */
252b5132
RH		 4435 relocation = (h->root.u.def.value
4436 + output_section->vma
4437 + h->root.u.def.section->output_offset);
116c20d2
NC		 4438
4439 /* Now RELOCATION is the VMA of the final
4440 destination. If this is a PC relative reloc,
4441 then ADDEND is the negative of the source VMA.
4442 We want to set ADDEND to the difference between
4443 the destination VMA and the source VMA, which
4444 means we must adjust RELOCATION by the change in
4445 the source VMA. This is done below. */
252b5132
RH		 4446 }
4447 else
4448 {
4449 /* We must change r_index according to the symbol
4450 map. */
4451 r_index = symbol_map[r_index];
4452
4453 if (r_index == -1)
4454 {
4455 if (h != NULL)
4456 {
4457 /* We decided to strip this symbol, but it
07d6d2b8
AM		 4458 turns out that we can't. Note that we
4459 lose the other and desc information here.
4460 I don't think that will ever matter for a
4461 global symbol. */
252b5132
RH		 4462 if (h->indx < 0)
4463 {
4464 h->indx = -2;
b34976b6 4465 h->written = FALSE;
7686d77d 4466 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4467 flaginfo))
b34976b6 4468 return FALSE;
252b5132
RH		 4469 }
4470 r_index = h->indx;
4471 }
4472 else
4473 {
4474 const char *name;
4475
4476 name = strings + GET_WORD (input_bfd,
4477 syms[r_index].e_strx);
1a72702b
AM		 4478 (*flaginfo->info->callbacks->unattached_reloc)
4479 (flaginfo->info, name,
4480 input_bfd, input_section, r_addr);
252b5132
RH		 4481 r_index = 0;
4482 }
4483 }
4484
4485 relocation = 0;
116c20d2
NC		 4486
4487 /* If this is a PC relative reloc, then the addend
4488 is the negative of the source VMA. We must
4489 adjust it by the change in the source VMA. This
4490 is done below. */
252b5132
RH		 4491 }
4492
4493 /* Write out the new r_index value. */
4494 if (bfd_header_big_endian (output_bfd))
4495 {
4496 rel->r_index[0] = r_index >> 16;
4497 rel->r_index[1] = r_index >> 8;
4498 rel->r_index[2] = r_index;
4499 }
4500 else
4501 {
4502 rel->r_index[2] = r_index >> 16;
4503 rel->r_index[1] = r_index >> 8;
4504 rel->r_index[0] = r_index;
4505 }
4506 }
4507 else
4508 {
252b5132
RH		 4509 /* This is a relocation against a section. We must
4510 adjust by the amount that the section moved. */
116c20d2
NC		 4511 r_section = aout_reloc_index_to_section (input_bfd, r_index);
4512 relocation = (r_section->output_section->vma
4513 + r_section->output_offset
4514 - r_section->vma);
252b5132 4515
116c20d2
NC		 4516 /* If this is a PC relative reloc, then the addend is
4517 the difference in VMA between the destination and the
4518 source. We have just adjusted for the change in VMA
4519 of the destination, so we must also adjust by the
4520 change in VMA of the source. This is done below. */
4521 }
252b5132 4522
116c20d2
NC		 4523 /* As described above, we must always adjust a PC relative
4524 reloc by the change in VMA of the source. However, if
4525 pcrel_offset is set, then the addend does not include the
4526 location within the section, in which case we don't need
4527 to adjust anything. */
4528 if (howto_table_ext[r_type].pc_relative
4529 && ! howto_table_ext[r_type].pcrel_offset)
252b5132
RH		 4530 relocation -= (input_section->output_section->vma
4531 + input_section->output_offset
4532 - input_section->vma);
4533
116c20d2
NC		 4534 /* Change the addend if necessary. */
4535 if (relocation != 0)
4536 PUT_WORD (output_bfd, r_addend + relocation, rel->r_addend);
252b5132 4537
116c20d2
NC		 4538 /* Change the address of the relocation. */
4539 PUT_WORD (output_bfd,
4540 r_addr + input_section->output_offset,
4541 rel->r_address);
252b5132
RH		 4542 }
4543 else
4544 {
b34976b6 4545 bfd_boolean hundef;
116c20d2 4546 bfd_reloc_status_type r;
252b5132
RH		 4547
4548 /* We are generating an executable, and must do a full
4549 relocation. */
b34976b6 4550 hundef = FALSE;
252b5132
RH		 4551
4552 if (r_extern)
4553 {
4554 h = sym_hashes[r_index];
4555
116c20d2 4556 if (h != NULL
252b5132
RH		 4557 && (h->root.type == bfd_link_hash_defined
4558 || h->root.type == bfd_link_hash_defweak))
4559 {
4560 relocation = (h->root.u.def.value
4561 + h->root.u.def.section->output_section->vma
4562 + h->root.u.def.section->output_offset);
4563 }
116c20d2 4564 else if (h != NULL
252b5132
RH		 4565 && h->root.type == bfd_link_hash_undefweak)
4566 relocation = 0;
4567 else
4568 {
b34976b6 4569 hundef = TRUE;
252b5132
RH		 4570 relocation = 0;
4571 }
4572 }
116c20d2
NC		 4573 else if (r_type == (unsigned int) RELOC_BASE10
4574 || r_type == (unsigned int) RELOC_BASE13
4575 || r_type == (unsigned int) RELOC_BASE22)
4576 {
4577 struct external_nlist *sym;
4578 int type;
4579
4580 /* For base relative relocs, r_index is always an index
07d6d2b8 4581 into the symbol table, even if r_extern is 0. */
116c20d2
NC		 4582 sym = syms + r_index;
4583 type = H_GET_8 (input_bfd, sym->e_type);
4584 if ((type & N_TYPE) == N_TEXT
4585 || type == N_WEAKT)
4586 r_section = obj_textsec (input_bfd);
4587 else if ((type & N_TYPE) == N_DATA
4588 || type == N_WEAKD)
4589 r_section = obj_datasec (input_bfd);
4590 else if ((type & N_TYPE) == N_BSS
4591 || type == N_WEAKB)
4592 r_section = obj_bsssec (input_bfd);
4593 else if ((type & N_TYPE) == N_ABS
4594 || type == N_WEAKA)
4595 r_section = bfd_abs_section_ptr;
4596 else
4597 abort ();
4598 relocation = (r_section->output_section->vma
4599 + r_section->output_offset
4600 + (GET_WORD (input_bfd, sym->e_value)
4601 - r_section->vma));
4602 }
252b5132
RH		 4603 else
4604 {
116c20d2 4605 r_section = aout_reloc_index_to_section (input_bfd, r_index);
252b5132 4606
116c20d2
NC		 4607 /* If this is a PC relative reloc, then R_ADDEND is the
4608 difference between the two vmas, or
4609 old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
4610 where
4611 old_dest_sec == section->vma
4612 and
4613 old_src_sec == input_section->vma
4614 and
4615 old_src_off == r_addr
4616
4617 _bfd_final_link_relocate expects RELOCATION +
4618 R_ADDEND to be the VMA of the destination minus
4619 r_addr (the minus r_addr is because this relocation
4620 is not pcrel_offset, which is a bit confusing and
4621 should, perhaps, be changed), or
4622 new_dest_sec
4623 where
4624 new_dest_sec == output_section->vma + output_offset
4625 We arrange for this to happen by setting RELOCATION to
4626 new_dest_sec + old_src_sec - old_dest_sec
4627
4628 If this is not a PC relative reloc, then R_ADDEND is
4629 simply the VMA of the destination, so we set
4630 RELOCATION to the change in the destination VMA, or
4631 new_dest_sec - old_dest_sec
4632 */
4633 relocation = (r_section->output_section->vma
4634 + r_section->output_offset
4635 - r_section->vma);
4636 if (howto_table_ext[r_type].pc_relative)
252b5132
RH		 4637 relocation += input_section->vma;
4638 }
4639
4640 if (check_dynamic_reloc != NULL)
4641 {
b34976b6 4642 bfd_boolean skip;
252b5132
RH		 4643
4644 if (! ((*check_dynamic_reloc)
57402f1e 4645 (flaginfo->info, input_bfd, input_section, h,
116c20d2 4646 (void *) rel, contents, &skip, &relocation)))
b34976b6 4647 return FALSE;
252b5132
RH		 4648 if (skip)
4649 continue;
4650 }
4651
4652 /* Now warn if a global symbol is undefined. We could not
07d6d2b8
AM		 4653 do this earlier, because check_dynamic_reloc might want
4654 to skip this reloc. */
116c20d2 4655 if (hundef
0e1862bb 4656 && ! bfd_link_pic (flaginfo->info)
116c20d2
NC		 4657 && r_type != (unsigned int) RELOC_BASE10
4658 && r_type != (unsigned int) RELOC_BASE13
4659 && r_type != (unsigned int) RELOC_BASE22)
252b5132
RH		 4660 {
4661 const char *name;
4662
4663 if (h != NULL)
4664 name = h->root.root.string;
4665 else
4666 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4667 (*flaginfo->info->callbacks->undefined_symbol)
4668 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
252b5132
RH		 4669 }
4670
116c20d2
NC		 4671 if (r_type != (unsigned int) RELOC_SPARC_REV32)
4672 r = MY_final_link_relocate (howto_table_ext + r_type,
4673 input_bfd, input_section,
4674 contents, r_addr, relocation,
4675 r_addend);
4676 else
252b5132 4677 {
116c20d2 4678 bfd_vma x;
252b5132 4679
116c20d2
NC		 4680 x = bfd_get_32 (input_bfd, contents + r_addr);
4681 x = x + relocation + r_addend;
4682 bfd_putl32 (/*input_bfd,*/ x, contents + r_addr);
4683 r = bfd_reloc_ok;
4684 }
4685
4686 if (r != bfd_reloc_ok)
4687 {
4688 switch (r)
4689 {
4690 default:
4691 case bfd_reloc_outofrange:
4692 abort ();
4693 case bfd_reloc_overflow:
252b5132 4694 {
116c20d2 4695 const char *name;
252b5132 4696
116c20d2
NC		 4697 if (h != NULL)
4698 name = NULL;
4699 else if (r_extern
4700 || r_type == (unsigned int) RELOC_BASE10
4701 || r_type == (unsigned int) RELOC_BASE13
4702 || r_type == (unsigned int) RELOC_BASE22)
4703 name = strings + GET_WORD (input_bfd,
4704 syms[r_index].e_strx);
4705 else
4706 {
4707 asection *s;
4708
4709 s = aout_reloc_index_to_section (input_bfd, r_index);
fd361982 4710 name = bfd_section_name (s);
116c20d2 4711 }
1a72702b
AM		 4712 (*flaginfo->info->callbacks->reloc_overflow)
4713 (flaginfo->info, (h ? &h->root : NULL), name,
4714 howto_table_ext[r_type].name,
4715 r_addend, input_bfd, input_section, r_addr);
252b5132 4716 }
116c20d2
NC		 4717 break;
4718 }
252b5132
RH		 4719 }
4720 }
4721 }
4722
b34976b6 4723 return TRUE;
252b5132
RH		 4724}
4725
116c20d2
NC		 4726/* Link an a.out section into the output file. */
4727
4728static bfd_boolean
57402f1e 4729aout_link_input_section (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4730 bfd *input_bfd,
4731 asection *input_section,
4732 file_ptr *reloff_ptr,
4733 bfd_size_type rel_size)
4734{
4735 bfd_size_type input_size;
4736 void * relocs;
4737
4738 /* Get the section contents. */
4739 input_size = input_section->size;
4740 if (! bfd_get_section_contents (input_bfd, input_section,
57402f1e 4741 (void *) flaginfo->contents,
116c20d2
NC		 4742 (file_ptr) 0, input_size))
4743 return FALSE;
4744
4745 /* Read in the relocs if we haven't already done it. */
4746 if (aout_section_data (input_section) != NULL
4747 && aout_section_data (input_section)->relocs != NULL)
4748 relocs = aout_section_data (input_section)->relocs;
4749 else
4750 {
57402f1e 4751 relocs = flaginfo->relocs;
116c20d2
NC		 4752 if (rel_size > 0)
4753 {
4754 if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
4755 || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
4756 return FALSE;
4757 }
4758 }
4759
4760 /* Relocate the section contents. */
4761 if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE)
4762 {
57402f1e 4763 if (! aout_link_input_section_std (flaginfo, input_bfd, input_section,
116c20d2 4764 (struct reloc_std_external *) relocs,
57402f1e 4765 rel_size, flaginfo->contents))
116c20d2
NC		 4766 return FALSE;
4767 }
4768 else
4769 {
57402f1e 4770 if (! aout_link_input_section_ext (flaginfo, input_bfd, input_section,
116c20d2 4771 (struct reloc_ext_external *) relocs,
57402f1e 4772 rel_size, flaginfo->contents))
116c20d2
NC		 4773 return FALSE;
4774 }
4775
4776 /* Write out the section contents. */
57402f1e 4777 if (! bfd_set_section_contents (flaginfo->output_bfd,
116c20d2 4778 input_section->output_section,
57402f1e 4779 (void *) flaginfo->contents,
116c20d2
NC		 4780 (file_ptr) input_section->output_offset,
4781 input_size))
4782 return FALSE;
4783
4784 /* If we are producing relocatable output, the relocs were
4785 modified, and we now write them out. */
0e1862bb 4786 if (bfd_link_relocatable (flaginfo->info) && rel_size > 0)
116c20d2 4787 {
57402f1e 4788 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
116c20d2 4789 return FALSE;
57402f1e 4790 if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size)
116c20d2
NC		 4791 return FALSE;
4792 *reloff_ptr += rel_size;
4793
4794 /* Assert that the relocs have not run into the symbols, and
4795 that if these are the text relocs they have not run into the
4796 data relocs. */
57402f1e
NC		 4797 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
4798 && (reloff_ptr != &flaginfo->treloff
116c20d2 4799 || (*reloff_ptr
57402f1e 4800 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 4801 }
4802
4803 return TRUE;
4804}
4805
4806/* Adjust and write out the symbols for an a.out file. Set the new
4807 symbol indices into a symbol_map. */
252b5132 4808
b34976b6 4809static bfd_boolean
57402f1e 4810aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd)
252b5132 4811{
252b5132 4812 bfd *output_bfd;
116c20d2 4813 bfd_size_type sym_count;
252b5132 4814 char *strings;
116c20d2
NC		 4815 enum bfd_link_strip strip;
4816 enum bfd_link_discard discard;
4817 struct external_nlist *outsym;
4818 bfd_size_type strtab_index;
4819 struct external_nlist *sym;
4820 struct external_nlist *sym_end;
4821 struct aout_link_hash_entry **sym_hash;
252b5132 4822 int *symbol_map;
116c20d2
NC		 4823 bfd_boolean pass;
4824 bfd_boolean skip_next;
252b5132 4825
57402f1e 4826 output_bfd = flaginfo->output_bfd;
116c20d2
NC		 4827 sym_count = obj_aout_external_sym_count (input_bfd);
4828 strings = obj_aout_external_strings (input_bfd);
57402f1e
NC		 4829 strip = flaginfo->info->strip;
4830 discard = flaginfo->info->discard;
4831 outsym = flaginfo->output_syms;
252b5132 4832
116c20d2
NC		 4833 /* First write out a symbol for this object file, unless we are
4834 discarding such symbols. */
4835 if (strip != strip_all
4836 && (strip != strip_some
57402f1e 4837 || bfd_hash_lookup (flaginfo->info->keep_hash, input_bfd->filename,
116c20d2
NC		 4838 FALSE, FALSE) != NULL)
4839 && discard != discard_all)
4840 {
4841 H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
4842 H_PUT_8 (output_bfd, 0, outsym->e_other);
4843 H_PUT_16 (output_bfd, 0, outsym->e_desc);
57402f1e 4844 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 4845 input_bfd->filename, FALSE);
4846 if (strtab_index == (bfd_size_type) -1)
4847 return FALSE;
4848 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
4849 PUT_WORD (output_bfd,
fd361982 4850 (bfd_section_vma (obj_textsec (input_bfd)->output_section)
116c20d2
NC		 4851 + obj_textsec (input_bfd)->output_offset),
4852 outsym->e_value);
4853 ++obj_aout_external_sym_count (output_bfd);
4854 ++outsym;
4855 }
252b5132 4856
116c20d2
NC		 4857 pass = FALSE;
4858 skip_next = FALSE;
4859 sym = obj_aout_external_syms (input_bfd);
4860 sym_end = sym + sym_count;
4861 sym_hash = obj_aout_sym_hashes (input_bfd);
57402f1e 4862 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4863 memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map);
4864 for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
252b5132 4865 {
116c20d2
NC		 4866 const char *name;
4867 int type;
4868 struct aout_link_hash_entry *h;
4869 bfd_boolean skip;
4870 asection *symsec;
4871 bfd_vma val = 0;
4872 bfd_boolean copy;
252b5132 4873
116c20d2 4874 /* We set *symbol_map to 0 above for all symbols. If it has
07d6d2b8
AM		 4875 already been set to -1 for this symbol, it means that we are
4876 discarding it because it appears in a duplicate header file.
4877 See the N_BINCL code below. */
116c20d2
NC		 4878 if (*symbol_map == -1)
4879 continue;
252b5132 4880
116c20d2 4881 /* Initialize *symbol_map to -1, which means that the symbol was
07d6d2b8
AM		 4882 not copied into the output file. We will change it later if
4883 we do copy the symbol over. */
116c20d2
NC		 4884 *symbol_map = -1;
4885
4886 type = H_GET_8 (input_bfd, sym->e_type);
4887 name = strings + GET_WORD (input_bfd, sym->e_strx);
4888
4889 h = NULL;
4890
4891 if (pass)
252b5132 4892 {
116c20d2
NC		 4893 /* Pass this symbol through. It is the target of an
4894 indirect or warning symbol. */
4895 val = GET_WORD (input_bfd, sym->e_value);
4896 pass = FALSE;
252b5132 4897 }
116c20d2 4898 else if (skip_next)
252b5132 4899 {
116c20d2
NC		 4900 /* Skip this symbol, which is the target of an indirect
4901 symbol that we have changed to no longer be an indirect
4902 symbol. */
4903 skip_next = FALSE;
4904 continue;
252b5132 4905 }
116c20d2
NC		 4906 else
4907 {
4908 struct aout_link_hash_entry *hresolve;
252b5132 4909
116c20d2
NC		 4910 /* We have saved the hash table entry for this symbol, if
4911 there is one. Note that we could just look it up again
4912 in the hash table, provided we first check that it is an
4913 external symbol. */
4914 h = *sym_hash;
252b5132 4915
116c20d2 4916 /* Use the name from the hash table, in case the symbol was
07d6d2b8 4917 wrapped. */
116c20d2
NC		 4918 if (h != NULL
4919 && h->root.type != bfd_link_hash_warning)
4920 name = h->root.root.string;
252b5132 4921
116c20d2
NC		 4922 /* If this is an indirect or warning symbol, then change
4923 hresolve to the base symbol. We also change *sym_hash so
4924 that the relocation routines relocate against the real
4925 symbol. */
4926 hresolve = h;
4927 if (h != (struct aout_link_hash_entry *) NULL
4928 && (h->root.type == bfd_link_hash_indirect
4929 || h->root.type == bfd_link_hash_warning))
252b5132 4930 {
116c20d2
NC		 4931 hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
4932 while (hresolve->root.type == bfd_link_hash_indirect
4933 || hresolve->root.type == bfd_link_hash_warning)
4934 hresolve = ((struct aout_link_hash_entry *)
4935 hresolve->root.u.i.link);
4936 *sym_hash = hresolve;
4937 }
4938
4939 /* If the symbol has already been written out, skip it. */
4940 if (h != NULL
4941 && h->written)
4942 {
4943 if ((type & N_TYPE) == N_INDR
4944 || type == N_WARNING)
4945 skip_next = TRUE;
4946 *symbol_map = h->indx;
4947 continue;
4948 }
4949
4950 /* See if we are stripping this symbol. */
4951 skip = FALSE;
4952 switch (strip)
4953 {
4954 case strip_none:
4955 break;
4956 case strip_debugger:
4957 if ((type & N_STAB) != 0)
4958 skip = TRUE;
4959 break;
4960 case strip_some:
57402f1e 4961 if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE)
116c20d2
NC		 4962 == NULL)
4963 skip = TRUE;
4964 break;
4965 case strip_all:
4966 skip = TRUE;
4967 break;
4968 }
4969 if (skip)
4970 {
4971 if (h != NULL)
4972 h->written = TRUE;
4973 continue;
4974 }
4975
4976 /* Get the value of the symbol. */
4977 if ((type & N_TYPE) == N_TEXT
4978 || type == N_WEAKT)
4979 symsec = obj_textsec (input_bfd);
4980 else if ((type & N_TYPE) == N_DATA
4981 || type == N_WEAKD)
4982 symsec = obj_datasec (input_bfd);
4983 else if ((type & N_TYPE) == N_BSS
4984 || type == N_WEAKB)
4985 symsec = obj_bsssec (input_bfd);
4986 else if ((type & N_TYPE) == N_ABS
4987 || type == N_WEAKA)
4988 symsec = bfd_abs_section_ptr;
4989 else if (((type & N_TYPE) == N_INDR
4990 && (hresolve == NULL
4991 || (hresolve->root.type != bfd_link_hash_defined
4992 && hresolve->root.type != bfd_link_hash_defweak
4993 && hresolve->root.type != bfd_link_hash_common)))
4994 || type == N_WARNING)
4995 {
4996 /* Pass the next symbol through unchanged. The
4997 condition above for indirect symbols is so that if
4998 the indirect symbol was defined, we output it with
4999 the correct definition so the debugger will
5000 understand it. */
5001 pass = TRUE;
5002 val = GET_WORD (input_bfd, sym->e_value);
5003 symsec = NULL;
5004 }
5005 else if ((type & N_STAB) != 0)
5006 {
5007 val = GET_WORD (input_bfd, sym->e_value);
5008 symsec = NULL;
5009 }
5010 else
5011 {
5012 /* If we get here with an indirect symbol, it means that
5013 we are outputting it with a real definition. In such
5014 a case we do not want to output the next symbol,
5015 which is the target of the indirection. */
5016 if ((type & N_TYPE) == N_INDR)
5017 skip_next = TRUE;
5018
5019 symsec = NULL;
5020
5021 /* We need to get the value from the hash table. We use
5022 hresolve so that if we have defined an indirect
5023 symbol we output the final definition. */
5024 if (h == NULL)
5025 {
5026 switch (type & N_TYPE)
5027 {
5028 case N_SETT:
5029 symsec = obj_textsec (input_bfd);
5030 break;
5031 case N_SETD:
5032 symsec = obj_datasec (input_bfd);
5033 break;
5034 case N_SETB:
5035 symsec = obj_bsssec (input_bfd);
5036 break;
5037 case N_SETA:
5038 symsec = bfd_abs_section_ptr;
5039 break;
5040 default:
5041 val = 0;
5042 break;
5043 }
5044 }
5045 else if (hresolve->root.type == bfd_link_hash_defined
5046 || hresolve->root.type == bfd_link_hash_defweak)
252b5132 5047 {
116c20d2 5048 asection *input_section;
252b5132
RH		 5049 asection *output_section;
5050
116c20d2
NC		 5051 /* This case usually means a common symbol which was
5052 turned into a defined symbol. */
5053 input_section = hresolve->root.u.def.section;
5054 output_section = input_section->output_section;
5055 BFD_ASSERT (bfd_is_abs_section (output_section)
5056 || output_section->owner == output_bfd);
5057 val = (hresolve->root.u.def.value
fd361982 5058 + bfd_section_vma (output_section)
116c20d2
NC		 5059 + input_section->output_offset);
5060
5061 /* Get the correct type based on the section. If
5062 this is a constructed set, force it to be
5063 globally visible. */
5064 if (type == N_SETT
5065 || type == N_SETD
5066 || type == N_SETB
5067 || type == N_SETA)
5068 type |= N_EXT;
5069
5070 type &=~ N_TYPE;
252b5132 5071
252b5132 5072 if (output_section == obj_textsec (output_bfd))
116c20d2
NC		 5073 type |= (hresolve->root.type == bfd_link_hash_defined
5074 ? N_TEXT
5075 : N_WEAKT);
252b5132 5076 else if (output_section == obj_datasec (output_bfd))
116c20d2
NC		 5077 type |= (hresolve->root.type == bfd_link_hash_defined
5078 ? N_DATA
5079 : N_WEAKD);
252b5132 5080 else if (output_section == obj_bsssec (output_bfd))
116c20d2
NC		 5081 type |= (hresolve->root.type == bfd_link_hash_defined
5082 ? N_BSS
5083 : N_WEAKB);
252b5132 5084 else
116c20d2
NC		 5085 type |= (hresolve->root.type == bfd_link_hash_defined
5086 ? N_ABS
5087 : N_WEAKA);
5088 }
5089 else if (hresolve->root.type == bfd_link_hash_common)
5090 val = hresolve->root.u.c.size;
5091 else if (hresolve->root.type == bfd_link_hash_undefweak)
5092 {
5093 val = 0;
5094 type = N_WEAKU;
252b5132
RH		 5095 }
5096 else
116c20d2
NC		 5097 val = 0;
5098 }
5099 if (symsec != NULL)
5100 val = (symsec->output_section->vma
5101 + symsec->output_offset
5102 + (GET_WORD (input_bfd, sym->e_value)
5103 - symsec->vma));
5104
5105 /* If this is a global symbol set the written flag, and if
5106 it is a local symbol see if we should discard it. */
5107 if (h != NULL)
5108 {
5109 h->written = TRUE;
5110 h->indx = obj_aout_external_sym_count (output_bfd);
5111 }
5112 else if ((type & N_TYPE) != N_SETT
5113 && (type & N_TYPE) != N_SETD
5114 && (type & N_TYPE) != N_SETB
5115 && (type & N_TYPE) != N_SETA)
5116 {
5117 switch (discard)
252b5132 5118 {
116c20d2
NC		 5119 case discard_none:
5120 case discard_sec_merge:
5121 break;
5122 case discard_l:
5123 if ((type & N_STAB) == 0
5124 && bfd_is_local_label_name (input_bfd, name))
5125 skip = TRUE;
5126 break;
5127 case discard_all:
5128 skip = TRUE;
5129 break;
5130 }
5131 if (skip)
5132 {
5133 pass = FALSE;
5134 continue;
5135 }
5136 }
252b5132 5137
116c20d2
NC		 5138 /* An N_BINCL symbol indicates the start of the stabs
5139 entries for a header file. We need to scan ahead to the
5140 next N_EINCL symbol, ignoring nesting, adding up all the
5141 characters in the symbol names, not including the file
5142 numbers in types (the first number after an open
5143 parenthesis). */
5144 if (type == (int) N_BINCL)
5145 {
5146 struct external_nlist *incl_sym;
5147 int nest;
5148 struct aout_link_includes_entry *incl_entry;
5149 struct aout_link_includes_totals *t;
5150
5151 val = 0;
5152 nest = 0;
5153 for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
5154 {
5155 int incl_type;
5156
5157 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5158 if (incl_type == (int) N_EINCL)
252b5132 5159 {
116c20d2
NC		 5160 if (nest == 0)
5161 break;
5162 --nest;
5163 }
5164 else if (incl_type == (int) N_BINCL)
5165 ++nest;
5166 else if (nest == 0)
5167 {
5168 const char *s;
5169
5170 s = strings + GET_WORD (input_bfd, incl_sym->e_strx);
5171 for (; *s != '\0'; s++)
252b5132 5172 {
116c20d2
NC		 5173 val += *s;
5174 if (*s == '(')
252b5132 5175 {
116c20d2
NC		 5176 /* Skip the file number. */
5177 ++s;
5178 while (ISDIGIT (*s))
5179 ++s;
5180 --s;
252b5132 5181 }
252b5132 5182 }
116c20d2
NC		 5183 }
5184 }
252b5132 5185
116c20d2 5186 /* If we have already included a header file with the
07d6d2b8
AM		 5187 same value, then replace this one with an N_EXCL
5188 symbol. */
57402f1e
NC		 5189 copy = (bfd_boolean) (! flaginfo->info->keep_memory);
5190 incl_entry = aout_link_includes_lookup (&flaginfo->includes,
116c20d2
NC		 5191 name, TRUE, copy);
5192 if (incl_entry == NULL)
5193 return FALSE;
5194 for (t = incl_entry->totals; t != NULL; t = t->next)
5195 if (t->total == val)
5196 break;
5197 if (t == NULL)
5198 {
5199 /* This is the first time we have seen this header
07d6d2b8 5200 file with this set of stabs strings. */
a50b1753 5201 t = (struct aout_link_includes_totals *)
07d6d2b8 5202 bfd_hash_allocate (&flaginfo->includes.root,
116c20d2
NC		 5203 sizeof *t);
5204 if (t == NULL)
5205 return FALSE;
5206 t->total = val;
5207 t->next = incl_entry->totals;
5208 incl_entry->totals = t;
5209 }
5210 else
5211 {
5212 int *incl_map;
5213
5214 /* This is a duplicate header file. We must change
07d6d2b8
AM		 5215 it to be an N_EXCL entry, and mark all the
5216 included symbols to prevent outputting them. */
116c20d2
NC		 5217 type = (int) N_EXCL;
5218
5219 nest = 0;
5220 for (incl_sym = sym + 1, incl_map = symbol_map + 1;
5221 incl_sym < sym_end;
5222 incl_sym++, incl_map++)
5223 {
5224 int incl_type;
5225
5226 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5227 if (incl_type == (int) N_EINCL)
5228 {
5229 if (nest == 0)
5230 {
5231 *incl_map = -1;
5232 break;
5233 }
5234 --nest;
252b5132 5235 }
116c20d2
NC		 5236 else if (incl_type == (int) N_BINCL)
5237 ++nest;
5238 else if (nest == 0)
5239 *incl_map = -1;
252b5132 5240 }
252b5132
RH		 5241 }
5242 }
116c20d2
NC		 5243 }
5244
5245 /* Copy this symbol into the list of symbols we are going to
5246 write out. */
5247 H_PUT_8 (output_bfd, type, outsym->e_type);
5248 H_PUT_8 (output_bfd, H_GET_8 (input_bfd, sym->e_other), outsym->e_other);
5249 H_PUT_16 (output_bfd, H_GET_16 (input_bfd, sym->e_desc), outsym->e_desc);
5250 copy = FALSE;
57402f1e 5251 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5252 {
5253 /* name points into a string table which we are going to
5254 free. If there is a hash table entry, use that string.
5255 Otherwise, copy name into memory. */
5256 if (h != NULL)
5257 name = h->root.root.string;
252b5132 5258 else
116c20d2
NC		 5259 copy = TRUE;
5260 }
57402f1e 5261 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 5262 name, copy);
5263 if (strtab_index == (bfd_size_type) -1)
5264 return FALSE;
5265 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
5266 PUT_WORD (output_bfd, val, outsym->e_value);
5267 *symbol_map = obj_aout_external_sym_count (output_bfd);
5268 ++obj_aout_external_sym_count (output_bfd);
5269 ++outsym;
5270 }
252b5132 5271
116c20d2 5272 /* Write out the output symbols we have just constructed. */
57402f1e 5273 if (outsym > flaginfo->output_syms)
116c20d2
NC		 5274 {
5275 bfd_size_type outsym_size;
252b5132 5276
57402f1e 5277 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0)
116c20d2 5278 return FALSE;
57402f1e 5279 outsym_size = outsym - flaginfo->output_syms;
116c20d2 5280 outsym_size *= EXTERNAL_NLIST_SIZE;
57402f1e 5281 if (bfd_bwrite ((void *) flaginfo->output_syms, outsym_size, output_bfd)
116c20d2
NC		 5282 != outsym_size)
5283 return FALSE;
57402f1e 5284 flaginfo->symoff += outsym_size;
116c20d2 5285 }
252b5132 5286
116c20d2
NC		 5287 return TRUE;
5288}
252b5132 5289
116c20d2 5290/* Link an a.out input BFD into the output file. */
252b5132 5291
116c20d2 5292static bfd_boolean
57402f1e 5293aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd)
116c20d2 5294{
116c20d2 5295 BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
252b5132 5296
116c20d2
NC		 5297 /* If this is a dynamic object, it may need special handling. */
5298 if ((input_bfd->flags & DYNAMIC) != 0
5299 && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
5300 return ((*aout_backend_info (input_bfd)->link_dynamic_object)
57402f1e 5301 (flaginfo->info, input_bfd));
252b5132 5302
116c20d2 5303 /* Get the symbols. We probably have them already, unless
57402f1e 5304 flaginfo->info->keep_memory is FALSE. */
116c20d2
NC		 5305 if (! aout_get_external_symbols (input_bfd))
5306 return FALSE;
252b5132 5307
116c20d2 5308 /* Write out the symbols and get a map of the new indices. The map
57402f1e
NC		 5309 is placed into flaginfo->symbol_map. */
5310 if (! aout_link_write_symbols (flaginfo, input_bfd))
116c20d2 5311 return FALSE;
252b5132 5312
116c20d2
NC		 5313 /* Relocate and write out the sections. These functions use the
5314 symbol map created by aout_link_write_symbols. The linker_mark
5315 field will be set if these sections are to be included in the
5316 link, which will normally be the case. */
5317 if (obj_textsec (input_bfd)->linker_mark)
5318 {
57402f1e 5319 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5320 obj_textsec (input_bfd),
57402f1e 5321 &flaginfo->treloff,
116c20d2
NC		 5322 exec_hdr (input_bfd)->a_trsize))
5323 return FALSE;
5324 }
5325 if (obj_datasec (input_bfd)->linker_mark)
5326 {
57402f1e 5327 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5328 obj_datasec (input_bfd),
57402f1e 5329 &flaginfo->dreloff,
116c20d2
NC		 5330 exec_hdr (input_bfd)->a_drsize))
5331 return FALSE;
5332 }
5333
5334 /* If we are not keeping memory, we don't need the symbols any
5335 longer. We still need them if we are keeping memory, because the
5336 strings in the hash table point into them. */
57402f1e 5337 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5338 {
5339 if (! aout_link_free_symbols (input_bfd))
5340 return FALSE;
5341 }
5342
5343 return TRUE;
5344}
5345
5346/* Do the final link step. This is called on the output BFD. The
5347 INFO structure should point to a list of BFDs linked through the
c72f2fb2 5348 link.next field which can be used to find each BFD which takes part
116c20d2
NC		 5349 in the output. Also, each section in ABFD should point to a list
5350 of bfd_link_order structures which list all the input sections for
5351 the output section. */
5352
5353bfd_boolean
5354NAME (aout, final_link) (bfd *abfd,
5355 struct bfd_link_info *info,
5356 void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *))
5357{
5358 struct aout_final_link_info aout_info;
5359 bfd_boolean includes_hash_initialized = FALSE;
5360 bfd *sub;
5361 bfd_size_type trsize, drsize;
5362 bfd_size_type max_contents_size;
5363 bfd_size_type max_relocs_size;
5364 bfd_size_type max_sym_count;
116c20d2
NC		 5365 struct bfd_link_order *p;
5366 asection *o;
5367 bfd_boolean have_link_order_relocs;
5368
0e1862bb 5369 if (bfd_link_pic (info))
116c20d2
NC		 5370 abfd->flags |= DYNAMIC;
5371
5372 aout_info.info = info;
5373 aout_info.output_bfd = abfd;
5374 aout_info.contents = NULL;
5375 aout_info.relocs = NULL;
5376 aout_info.symbol_map = NULL;
5377 aout_info.output_syms = NULL;
252b5132 5378
66eb6687
AM		 5379 if (!bfd_hash_table_init_n (&aout_info.includes.root,
5380 aout_link_includes_newfunc,
5381 sizeof (struct aout_link_includes_entry),
5382 251))
116c20d2
NC		 5383 goto error_return;
5384 includes_hash_initialized = TRUE;
252b5132 5385
116c20d2
NC		 5386 /* Figure out the largest section size. Also, if generating
5387 relocatable output, count the relocs. */
5388 trsize = 0;
5389 drsize = 0;
5390 max_contents_size = 0;
5391 max_relocs_size = 0;
5392 max_sym_count = 0;
c72f2fb2 5393 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2
NC		 5394 {
5395 bfd_size_type sz;
252b5132 5396
0e1862bb 5397 if (bfd_link_relocatable (info))
116c20d2
NC		 5398 {
5399 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
252b5132 5400 {
116c20d2
NC		 5401 trsize += exec_hdr (sub)->a_trsize;
5402 drsize += exec_hdr (sub)->a_drsize;
252b5132 5403 }
252b5132
RH		 5404 else
5405 {
116c20d2
NC		 5406 /* FIXME: We need to identify the .text and .data sections
5407 and call get_reloc_upper_bound and canonicalize_reloc to
5408 work out the number of relocs needed, and then multiply
5409 by the reloc size. */
4eca0228 5410 _bfd_error_handler
695344c0 5411 /* xgettext:c-format */
871b3ab2 5412 (_("%pB: relocatable link from %s to %s not supported"),
dae82561 5413 abfd, sub->xvec->name, abfd->xvec->name);
116c20d2
NC		 5414 bfd_set_error (bfd_error_invalid_operation);
5415 goto error_return;
252b5132 5416 }
116c20d2 5417 }
252b5132 5418
116c20d2
NC		 5419 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
5420 {
5421 sz = obj_textsec (sub)->size;
5422 if (sz > max_contents_size)
5423 max_contents_size = sz;
5424 sz = obj_datasec (sub)->size;
5425 if (sz > max_contents_size)
5426 max_contents_size = sz;
252b5132 5427
116c20d2
NC		 5428 sz = exec_hdr (sub)->a_trsize;
5429 if (sz > max_relocs_size)
5430 max_relocs_size = sz;
5431 sz = exec_hdr (sub)->a_drsize;
5432 if (sz > max_relocs_size)
5433 max_relocs_size = sz;
252b5132 5434
116c20d2
NC		 5435 sz = obj_aout_external_sym_count (sub);
5436 if (sz > max_sym_count)
5437 max_sym_count = sz;
252b5132
RH		 5438 }
5439 }
5440
0e1862bb 5441 if (bfd_link_relocatable (info))
116c20d2
NC		 5442 {
5443 if (obj_textsec (abfd) != NULL)
5444 trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
8423293d 5445 ->map_head.link_order)
116c20d2
NC		 5446 * obj_reloc_entry_size (abfd));
5447 if (obj_datasec (abfd) != NULL)
5448 drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
8423293d 5449 ->map_head.link_order)
116c20d2
NC		 5450 * obj_reloc_entry_size (abfd));
5451 }
252b5132 5452
116c20d2
NC		 5453 exec_hdr (abfd)->a_trsize = trsize;
5454 exec_hdr (abfd)->a_drsize = drsize;
252b5132 5455
116c20d2 5456 exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
252b5132 5457
116c20d2
NC		 5458 /* Adjust the section sizes and vmas according to the magic number.
5459 This sets a_text, a_data and a_bss in the exec_hdr and sets the
5460 filepos for each section. */
3a8c4a5b 5461 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
116c20d2 5462 goto error_return;
252b5132 5463
116c20d2
NC		 5464 /* The relocation and symbol file positions differ among a.out
5465 targets. We are passed a callback routine from the backend
5466 specific code to handle this.
5467 FIXME: At this point we do not know how much space the symbol
5468 table will require. This will not work for any (nonstandard)
5469 a.out target that needs to know the symbol table size before it
dc12032b 5470 can compute the relocation file positions. */
116c20d2
NC		 5471 (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
5472 &aout_info.symoff);
5473 obj_textsec (abfd)->rel_filepos = aout_info.treloff;
5474 obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
5475 obj_sym_filepos (abfd) = aout_info.symoff;
252b5132 5476
116c20d2
NC		 5477 /* We keep a count of the symbols as we output them. */
5478 obj_aout_external_sym_count (abfd) = 0;
5479
5480 /* We accumulate the string table as we write out the symbols. */
5481 aout_info.strtab = _bfd_stringtab_init ();
5482 if (aout_info.strtab == NULL)
5483 goto error_return;
5484
5485 /* Allocate buffers to hold section contents and relocs. */
a50b1753 5486 aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
116c20d2 5487 aout_info.relocs = bfd_malloc (max_relocs_size);
c38eb2a6 5488 aout_info.symbol_map = (int *) bfd_malloc (max_sym_count * sizeof (int));
a50b1753
NC		 5489 aout_info.output_syms = (struct external_nlist *)
5490 bfd_malloc ((max_sym_count + 1) * sizeof (struct external_nlist));
116c20d2
NC		 5491 if ((aout_info.contents == NULL && max_contents_size != 0)
5492 || (aout_info.relocs == NULL && max_relocs_size != 0)
5493 || (aout_info.symbol_map == NULL && max_sym_count != 0)
5494 || aout_info.output_syms == NULL)
5495 goto error_return;
5496
5497 /* If we have a symbol named __DYNAMIC, force it out now. This is
5498 required by SunOS. Doing this here rather than in sunos.c is a
5499 hack, but it's easier than exporting everything which would be
5500 needed. */
5501 {
5502 struct aout_link_hash_entry *h;
5503
5504 h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
5505 FALSE, FALSE, FALSE);
5506 if (h != NULL)
7686d77d 5507 aout_link_write_other_symbol (&h->root.root, &aout_info);
116c20d2
NC		 5508 }
5509
5510 /* The most time efficient way to do the link would be to read all
5511 the input object files into memory and then sort out the
5512 information into the output file. Unfortunately, that will
5513 probably use too much memory. Another method would be to step
5514 through everything that composes the text section and write it
5515 out, and then everything that composes the data section and write
5516 it out, and then write out the relocs, and then write out the
5517 symbols. Unfortunately, that requires reading stuff from each
5518 input file several times, and we will not be able to keep all the
5519 input files open simultaneously, and reopening them will be slow.
5520
5521 What we do is basically process one input file at a time. We do
5522 everything we need to do with an input file once--copy over the
5523 section contents, handle the relocation information, and write
5524 out the symbols--and then we throw away the information we read
5525 from it. This approach requires a lot of lseeks of the output
5526 file, which is unfortunate but still faster than reopening a lot
5527 of files.
5528
5529 We use the output_has_begun field of the input BFDs to see
5530 whether we have already handled it. */
c72f2fb2 5531 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2 5532 sub->output_has_begun = FALSE;
252b5132 5533
116c20d2
NC		 5534 /* Mark all sections which are to be included in the link. This
5535 will normally be every section. We need to do this so that we
5536 can identify any sections which the linker has decided to not
5537 include. */
5538 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5539 {
8423293d 5540 for (p = o->map_head.link_order; p != NULL; p = p->next)
116c20d2
NC		 5541 if (p->type == bfd_indirect_link_order)
5542 p->u.indirect.section->linker_mark = TRUE;
252b5132
RH		 5543 }
5544
116c20d2
NC		 5545 have_link_order_relocs = FALSE;
5546 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5547 {
8423293d 5548 for (p = o->map_head.link_order;
116c20d2
NC		 5549 p != NULL;
5550 p = p->next)
252b5132 5551 {
116c20d2
NC		 5552 if (p->type == bfd_indirect_link_order
5553 && (bfd_get_flavour (p->u.indirect.section->owner)
5554 == bfd_target_aout_flavour))
252b5132 5555 {
116c20d2
NC		 5556 bfd *input_bfd;
5557
5558 input_bfd = p->u.indirect.section->owner;
5559 if (! input_bfd->output_has_begun)
252b5132 5560 {
116c20d2
NC		 5561 if (! aout_link_input_bfd (&aout_info, input_bfd))
5562 goto error_return;
5563 input_bfd->output_has_begun = TRUE;
252b5132 5564 }
252b5132 5565 }
116c20d2
NC		 5566 else if (p->type == bfd_section_reloc_link_order
5567 || p->type == bfd_symbol_reloc_link_order)
5568 {
5569 /* These are handled below. */
5570 have_link_order_relocs = TRUE;
5571 }
5572 else
5573 {
5574 if (! _bfd_default_link_order (abfd, info, o, p))
5575 goto error_return;
5576 }
252b5132
RH		 5577 }
5578 }
252b5132 5579
116c20d2 5580 /* Write out any symbols that we have not already written out. */
7686d77d
AM		 5581 bfd_hash_traverse (&info->hash->table,
5582 aout_link_write_other_symbol,
5583 &aout_info);
116c20d2
NC		 5584
5585 /* Now handle any relocs we were asked to create by the linker.
5586 These did not come from any input file. We must do these after
5587 we have written out all the symbols, so that we know the symbol
5588 indices to use. */
5589 if (have_link_order_relocs)
5590 {
5591 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5592 {
8423293d 5593 for (p = o->map_head.link_order;
116c20d2
NC		 5594 p != NULL;
5595 p = p->next)
5596 {
5597 if (p->type == bfd_section_reloc_link_order
5598 || p->type == bfd_symbol_reloc_link_order)
5599 {
5600 if (! aout_link_reloc_link_order (&aout_info, o, p))
5601 goto error_return;
5602 }
5603 }
252b5132 5604 }
116c20d2 5605 }
252b5132 5606
116c20d2
NC		 5607 if (aout_info.contents != NULL)
5608 {
5609 free (aout_info.contents);
5610 aout_info.contents = NULL;
5611 }
5612 if (aout_info.relocs != NULL)
5613 {
5614 free (aout_info.relocs);
5615 aout_info.relocs = NULL;
5616 }
5617 if (aout_info.symbol_map != NULL)
5618 {
5619 free (aout_info.symbol_map);
5620 aout_info.symbol_map = NULL;
5621 }
5622 if (aout_info.output_syms != NULL)
5623 {
5624 free (aout_info.output_syms);
5625 aout_info.output_syms = NULL;
5626 }
5627 if (includes_hash_initialized)
5628 {
5629 bfd_hash_table_free (&aout_info.includes.root);
5630 includes_hash_initialized = FALSE;
5631 }
252b5132 5632
116c20d2
NC		 5633 /* Finish up any dynamic linking we may be doing. */
5634 if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
5635 {
5636 if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
5637 goto error_return;
252b5132
RH		 5638 }
5639
116c20d2
NC		 5640 /* Update the header information. */
5641 abfd->symcount = obj_aout_external_sym_count (abfd);
5642 exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
5643 obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
5644 obj_textsec (abfd)->reloc_count =
5645 exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
5646 obj_datasec (abfd)->reloc_count =
5647 exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
252b5132 5648
116c20d2 5649 /* Write out the string table, unless there are no symbols. */
f6e688f7
AM		 5650 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0)
5651 goto error_return;
116c20d2
NC		 5652 if (abfd->symcount > 0)
5653 {
f6e688f7 5654 if (!emit_stringtab (abfd, aout_info.strtab))
116c20d2
NC		 5655 goto error_return;
5656 }
f6e688f7 5657 else
116c20d2 5658 {
f6e688f7 5659 bfd_byte b[BYTES_IN_WORD];
252b5132 5660
f6e688f7
AM		 5661 memset (b, 0, BYTES_IN_WORD);
5662 if (bfd_bwrite (b, (bfd_size_type) BYTES_IN_WORD, abfd) != BYTES_IN_WORD)
116c20d2
NC		 5663 goto error_return;
5664 }
252b5132 5665
b34976b6 5666 return TRUE;
116c20d2
NC		 5667
5668 error_return:
5669 if (aout_info.contents != NULL)
5670 free (aout_info.contents);
5671 if (aout_info.relocs != NULL)
5672 free (aout_info.relocs);
5673 if (aout_info.symbol_map != NULL)
5674 free (aout_info.symbol_map);
5675 if (aout_info.output_syms != NULL)
5676 free (aout_info.output_syms);
5677 if (includes_hash_initialized)
5678 bfd_hash_table_free (&aout_info.includes.root);
5679 return FALSE;
252b5132 5680}
GDB Binutils - Deliverables
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