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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 1948
533f049e
GN		 1949 switch (bfd_get_reloc_size (g->howto))
1950 {
1951 default:
1952 _bfd_error_handler (_("%pB: unsupported AOUT relocation size: %d"),
1953 abfd, bfd_get_reloc_size (g->howto));
1954 bfd_set_error (bfd_error_bad_value);
1955 return;
1956 case 1:
1957 case 2:
1958 case 4:
1959 r_length = g->howto->size; /* Size as a power of two. */
1960 break;
1961 case 8:
1962 r_length = 3;
1963 break;
1964 }
dfa85db1 1965
f7c33884 1966 r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */
252b5132
RH		 1967 /* XXX This relies on relocs coming from a.out files. */
1968 r_baserel = (g->howto->type & 8) != 0;
1969 r_jmptable = (g->howto->type & 16) != 0;
1970 r_relative = (g->howto->type & 32) != 0;
1971
f7c33884 1972 /* Name was clobbered by aout_write_syms to be symbol index. */
252b5132
RH		 1973
1974 /* If this relocation is relative to a symbol then set the
1975 r_index to the symbols index, and the r_extern bit.
1976
1977 Absolute symbols can come in in two ways, either as an offset
1978 from the abs section, or as a symbol which has an abs value.
f7c33884 1979 check for that here. */
252b5132 1980
252b5132
RH		 1981 if (bfd_is_com_section (output_section)
1982 || bfd_is_abs_section (output_section)
22184a77
NC		 1983 || bfd_is_und_section (output_section)
1984 /* PR gas/3041 a.out relocs against weak symbols
1985 must be treated as if they were against externs. */
1986 || (sym->flags & BSF_WEAK))
252b5132
RH		 1987 {
1988 if (bfd_abs_section_ptr->symbol == sym)
f7c33884
NC		 1989 {
1990 /* Whoops, looked like an abs symbol, but is
1991 really an offset from the abs section. */
1992 r_index = N_ABS;
1993 r_extern = 0;
1994 }
252b5132 1995 else
f7c33884
NC		 1996 {
1997 /* Fill in symbol. */
1998 r_extern = 1;
1999 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
2000 }
252b5132
RH		 2001 }
2002 else
2003 {
f7c33884 2004 /* Just an ordinary section. */
252b5132
RH		 2005 r_extern = 0;
2006 r_index = output_section->target_index;
2007 }
2008
f7c33884 2009 /* Now the fun stuff. */
923f08ff
AM		 2010 if (bfd_header_big_endian (abfd))
2011 {
252b5132
RH		 2012 natptr->r_index[0] = r_index >> 16;
2013 natptr->r_index[1] = r_index >> 8;
2014 natptr->r_index[2] = r_index;
923f08ff
AM		 2015 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
2016 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
2017 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
2018 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
2019 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
2020 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
2021 }
2022 else
2023 {
2024 natptr->r_index[2] = r_index >> 16;
2025 natptr->r_index[1] = r_index >> 8;
2026 natptr->r_index[0] = r_index;
2027 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
2028 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
2029 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
2030 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
2031 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
2032 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
2033 }
252b5132
RH		 2034}
2035
f7c33884 2036/* Extended stuff. */
0ef5a5bd 2037/* Output extended relocation information to a file in target byte order. */
252b5132 2038
116c20d2
NC		 2039extern void NAME (aout, swap_ext_reloc_out)
2040 (bfd *, arelent *, struct reloc_ext_external *);
252b5132
RH		 2041
2042void
116c20d2
NC		 2043NAME (aout, swap_ext_reloc_out) (bfd *abfd,
2044 arelent *g,
2045 struct reloc_ext_external *natptr)
252b5132
RH		 2046{
2047 int r_index;
2048 int r_extern;
2049 unsigned int r_type;
dc810e39 2050 bfd_vma r_addend;
252b5132
RH		 2051 asymbol *sym = *(g->sym_ptr_ptr);
2052 asection *output_section = sym->section->output_section;
2053
2054 PUT_WORD (abfd, g->address, natptr->r_address);
2055
2056 r_type = (unsigned int) g->howto->type;
2057
2058 r_addend = g->addend;
2059 if ((sym->flags & BSF_SECTION_SYM) != 0)
2060 r_addend += (*(g->sym_ptr_ptr))->section->output_section->vma;
2061
2062 /* If this relocation is relative to a symbol then set the
2063 r_index to the symbols index, and the r_extern bit.
2064
2065 Absolute symbols can come in in two ways, either as an offset
2066 from the abs section, or as a symbol which has an abs value.
2067 check for that here. */
e6f7f6d1 2068 if (bfd_is_abs_section (bfd_asymbol_section (sym)))
252b5132
RH		 2069 {
2070 r_extern = 0;
2071 r_index = N_ABS;
2072 }
2073 else if ((sym->flags & BSF_SECTION_SYM) == 0)
2074 {
e6f7f6d1 2075 if (bfd_is_und_section (bfd_asymbol_section (sym))
252b5132
RH		 2076 || (sym->flags & BSF_GLOBAL) != 0)
2077 r_extern = 1;
2078 else
2079 r_extern = 0;
2080 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
2081 }
2082 else
2083 {
f7c33884 2084 /* Just an ordinary section. */
252b5132
RH		 2085 r_extern = 0;
2086 r_index = output_section->target_index;
2087 }
2088
f7c33884 2089 /* Now the fun stuff. */
923f08ff
AM		 2090 if (bfd_header_big_endian (abfd))
2091 {
2092 natptr->r_index[0] = r_index >> 16;
2093 natptr->r_index[1] = r_index >> 8;
2094 natptr->r_index[2] = r_index;
2095 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
2096 | (r_type << RELOC_EXT_BITS_TYPE_SH_BIG));
2097 }
2098 else
2099 {
2100 natptr->r_index[2] = r_index >> 16;
2101 natptr->r_index[1] = r_index >> 8;
2102 natptr->r_index[0] = r_index;
2103 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
2104 | (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE));
2105 }
252b5132
RH		 2106
2107 PUT_WORD (abfd, r_addend, natptr->r_addend);
2108}
2109
2110/* BFD deals internally with all things based from the section they're
2111 in. so, something in 10 bytes into a text section with a base of
2112 50 would have a symbol (.text+10) and know .text vma was 50.
2113
2114 Aout keeps all it's symbols based from zero, so the symbol would
2115 contain 60. This macro subs the base of each section from the value
923f08ff
AM		 2116 to give the true offset from the section. */
2117
2118#define MOVE_ADDRESS(ad) \
2119 if (r_extern) \
2120 { \
2121 /* Undefined symbol. */ \
2122 cache_ptr->sym_ptr_ptr = symbols + r_index; \
252b5132 2123 cache_ptr->addend = ad; \
252b5132 2124 } \
923f08ff
AM		 2125 else \
2126 { \
2127 /* Defined, section relative. Replace symbol with pointer to \
2128 symbol which points to section. */ \
2129 switch (r_index) \
2130 { \
2131 case N_TEXT: \
2132 case N_TEXT | N_EXT: \
2133 cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \
2134 cache_ptr->addend = ad - su->textsec->vma; \
2135 break; \
2136 case N_DATA: \
2137 case N_DATA | N_EXT: \
2138 cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \
2139 cache_ptr->addend = ad - su->datasec->vma; \
2140 break; \
2141 case N_BSS: \
2142 case N_BSS | N_EXT: \
2143 cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \
2144 cache_ptr->addend = ad - su->bsssec->vma; \
2145 break; \
2146 default: \
2147 case N_ABS: \
2148 case N_ABS | N_EXT: \
2149 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
2150 cache_ptr->addend = ad; \
2151 break; \
2152 } \
2153 }
252b5132
RH		 2154
2155void
116c20d2
NC		 2156NAME (aout, swap_ext_reloc_in) (bfd *abfd,
2157 struct reloc_ext_external *bytes,
2158 arelent *cache_ptr,
2159 asymbol **symbols,
2160 bfd_size_type symcount)
252b5132
RH		 2161{
2162 unsigned int r_index;
2163 int r_extern;
2164 unsigned int r_type;
2165 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2166
2167 cache_ptr->address = (GET_SWORD (abfd, bytes->r_address));
2168
f7c33884 2169 /* Now the fun stuff. */
923f08ff
AM		 2170 if (bfd_header_big_endian (abfd))
2171 {
d45913a0
DA		 2172 r_index = (((unsigned int) bytes->r_index[0] << 16)
2173 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2174 | bytes->r_index[2]);
2175 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
2176 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
2177 >> RELOC_EXT_BITS_TYPE_SH_BIG);
2178 }
2179 else
2180 {
d45913a0
DA		 2181 r_index = (((unsigned int) bytes->r_index[2] << 16)
2182 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2183 | bytes->r_index[0]);
2184 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
2185 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
2186 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
2187 }
252b5132 2188
ad756e3f
AM		 2189 if (r_type < TABLE_SIZE (howto_table_ext))
2190 cache_ptr->howto = howto_table_ext + r_type;
2191 else
2192 cache_ptr->howto = NULL;
252b5132
RH		 2193
2194 /* Base relative relocs are always against the symbol table,
2195 regardless of the setting of r_extern. r_extern just reflects
2196 whether the symbol the reloc is against is local or global. */
d45913a0
DA		 2197 if (r_type == (unsigned int) RELOC_BASE10
2198 || r_type == (unsigned int) RELOC_BASE13
2199 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 2200 r_extern = 1;
2201
2202 if (r_extern && r_index > symcount)
2203 {
2204 /* We could arrange to return an error, but it might be useful
07d6d2b8 2205 to see the file even if it is bad. */
252b5132
RH		 2206 r_extern = 0;
2207 r_index = N_ABS;
2208 }
2209
923f08ff 2210 MOVE_ADDRESS (GET_SWORD (abfd, bytes->r_addend));
252b5132
RH		 2211}
2212
2213void
116c20d2
NC		 2214NAME (aout, swap_std_reloc_in) (bfd *abfd,
2215 struct reloc_std_external *bytes,
2216 arelent *cache_ptr,
2217 asymbol **symbols,
2218 bfd_size_type symcount)
252b5132
RH		 2219{
2220 unsigned int r_index;
2221 int r_extern;
2222 unsigned int r_length;
2223 int r_pcrel;
2224 int r_baserel, r_jmptable, r_relative;
2225 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2226 unsigned int howto_idx;
2227
dc810e39 2228 cache_ptr->address = H_GET_32 (abfd, bytes->r_address);
252b5132 2229
f7c33884 2230 /* Now the fun stuff. */
923f08ff
AM		 2231 if (bfd_header_big_endian (abfd))
2232 {
d45913a0
DA		 2233 r_index = (((unsigned int) bytes->r_index[0] << 16)
2234 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2235 | bytes->r_index[2]);
2236 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
2237 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
2238 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
2239 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
2240 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
2241 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
2242 >> RELOC_STD_BITS_LENGTH_SH_BIG);
2243 }
2244 else
2245 {
d45913a0
DA		 2246 r_index = (((unsigned int) bytes->r_index[2] << 16)
2247 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2248 | bytes->r_index[0]);
2249 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
2250 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
2251 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE));
2252 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE));
2253 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_LITTLE));
2254 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
2255 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
2256 }
252b5132 2257
923f08ff
AM		 2258 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
2259 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 2260 if (howto_idx < TABLE_SIZE (howto_table_std))
2261 {
2262 cache_ptr->howto = howto_table_std + howto_idx;
2263 if (cache_ptr->howto->type == (unsigned int) -1)
2264 cache_ptr->howto = NULL;
2265 }
2266 else
2267 cache_ptr->howto = NULL;
252b5132
RH		 2268
2269 /* Base relative relocs are always against the symbol table,
2270 regardless of the setting of r_extern. r_extern just reflects
2271 whether the symbol the reloc is against is local or global. */
2272 if (r_baserel)
2273 r_extern = 1;
2274
116acb2c 2275 if (r_extern && r_index >= symcount)
252b5132
RH		 2276 {
2277 /* We could arrange to return an error, but it might be useful
116acb2c
AM		 2278 to see the file even if it is bad. FIXME: Of course this
2279 means that objdump -r *doesn't* see the actual reloc, and
2280 objcopy silently writes a different reloc. */
252b5132
RH		 2281 r_extern = 0;
2282 r_index = N_ABS;
2283 }
2284
923f08ff 2285 MOVE_ADDRESS (0);
252b5132
RH		 2286}
2287
2288/* Read and swap the relocs for a section. */
2289
b34976b6 2290bfd_boolean
116c20d2 2291NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols)
252b5132 2292{
dc810e39 2293 bfd_size_type count;
252b5132 2294 bfd_size_type reloc_size;
116c20d2 2295 void * relocs;
252b5132
RH		 2296 arelent *reloc_cache;
2297 size_t each_size;
2298 unsigned int counter = 0;
2299 arelent *cache_ptr;
dc810e39 2300 bfd_size_type amt;
252b5132
RH		 2301
2302 if (asect->relocation)
b34976b6 2303 return TRUE;
252b5132
RH		 2304
2305 if (asect->flags & SEC_CONSTRUCTOR)
b34976b6 2306 return TRUE;
252b5132
RH		 2307
2308 if (asect == obj_datasec (abfd))
923f08ff 2309 reloc_size = exec_hdr (abfd)->a_drsize;
252b5132 2310 else if (asect == obj_textsec (abfd))
923f08ff 2311 reloc_size = exec_hdr (abfd)->a_trsize;
252b5132
RH		 2312 else if (asect == obj_bsssec (abfd))
2313 reloc_size = 0;
2314 else
2315 {
2316 bfd_set_error (bfd_error_invalid_operation);
b34976b6 2317 return FALSE;
252b5132
RH		 2318 }
2319
252b5132 2320 each_size = obj_reloc_entry_size (abfd);
252b5132 2321 count = reloc_size / each_size;
078c4bfc
MS		 2322 if (count == 0)
2323 return TRUE; /* Nothing to be done. */
252b5132 2324
806470a2 2325 if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
b34976b6 2326 return FALSE;
2bb3687b 2327 relocs = _bfd_malloc_and_read (abfd, reloc_size, reloc_size);
078c4bfc 2328 if (relocs == NULL)
806470a2
AM		 2329 return FALSE;
2330
806470a2
AM		 2331 amt = count * sizeof (arelent);
2332 reloc_cache = (arelent *) bfd_zmalloc (amt);
2333 if (reloc_cache == NULL)
252b5132
RH		 2334 {
2335 free (relocs);
b34976b6 2336 return FALSE;
252b5132
RH		 2337 }
2338
2339 cache_ptr = reloc_cache;
2340 if (each_size == RELOC_EXT_SIZE)
2341 {
dc810e39 2342 struct reloc_ext_external *rptr = (struct reloc_ext_external *) relocs;
252b5132
RH		 2343
2344 for (; counter < count; counter++, rptr++, cache_ptr++)
1642229e 2345 MY_swap_ext_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2346 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2347 }
2348 else
2349 {
dc810e39 2350 struct reloc_std_external *rptr = (struct reloc_std_external *) relocs;
252b5132
RH		 2351
2352 for (; counter < count; counter++, rptr++, cache_ptr++)
2353 MY_swap_std_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2354 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2355 }
2356
2357 free (relocs);
2358
2359 asect->relocation = reloc_cache;
2360 asect->reloc_count = cache_ptr - reloc_cache;
2361
b34976b6 2362 return TRUE;
252b5132
RH		 2363}
2364
2365/* Write out a relocation section into an object file. */
2366
b34976b6 2367bfd_boolean
116c20d2 2368NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section)
252b5132
RH		 2369{
2370 arelent **generic;
2371 unsigned char *native, *natptr;
2372 size_t each_size;
2373
2374 unsigned int count = section->reloc_count;
dc810e39 2375 bfd_size_type natsize;
252b5132
RH		 2376
2377 if (count == 0 || section->orelocation == NULL)
b34976b6 2378 return TRUE;
252b5132
RH		 2379
2380 each_size = obj_reloc_entry_size (abfd);
dc810e39 2381 natsize = (bfd_size_type) each_size * count;
a50b1753 2382 native = (unsigned char *) bfd_zalloc (abfd, natsize);
252b5132 2383 if (!native)
b34976b6 2384 return FALSE;
252b5132
RH		 2385
2386 generic = section->orelocation;
2387
2388 if (each_size == RELOC_EXT_SIZE)
2389 {
2390 for (natptr = native;
2391 count != 0;
2392 --count, natptr += each_size, ++generic)
e2996cc3 2393 {
92744f05
NC		 2394 /* PR 20921: If the howto field has not been initialised then skip
2395 this reloc.
2396 PR 20929: Similarly for the symbol field. */
2397 if ((*generic)->howto == NULL
2398 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2399 {
2400 bfd_set_error (bfd_error_invalid_operation);
dc1e8a47
AM		 2401 _bfd_error_handler (_("%pB: attempt to write out "
2402 "unknown reloc type"), abfd);
e2996cc3
NC		 2403 return FALSE;
2404 }
2405 MY_swap_ext_reloc_out (abfd, *generic,
2406 (struct reloc_ext_external *) natptr);
2407 }
252b5132
RH		 2408 }
2409 else
2410 {
2411 for (natptr = native;
2412 count != 0;
2413 --count, natptr += each_size, ++generic)
e2996cc3 2414 {
92744f05
NC		 2415 if ((*generic)->howto == NULL
2416 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2417 {
2418 bfd_set_error (bfd_error_invalid_operation);
dc1e8a47
AM		 2419 _bfd_error_handler (_("%pB: attempt to write out "
2420 "unknown reloc type"), abfd);
e2996cc3
NC		 2421 return FALSE;
2422 }
2423 MY_swap_std_reloc_out (abfd, *generic,
2424 (struct reloc_std_external *) natptr);
2425 }
252b5132
RH		 2426 }
2427
116c20d2 2428 if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
dc810e39 2429 {
923f08ff 2430 bfd_release (abfd, native);
b34976b6 2431 return FALSE;
dc810e39 2432 }
252b5132
RH		 2433 bfd_release (abfd, native);
2434
b34976b6 2435 return TRUE;
252b5132
RH		 2436}
2437
f7c33884
NC		 2438/* This is stupid. This function should be a boolean predicate. */
2439
252b5132 2440long
116c20d2
NC		 2441NAME (aout, canonicalize_reloc) (bfd *abfd,
2442 sec_ptr section,
2443 arelent **relptr,
2444 asymbol **symbols)
252b5132
RH		 2445{
2446 arelent *tblptr = section->relocation;
2447 unsigned int count;
2448
2449 if (section == obj_bsssec (abfd))
2450 {
2451 *relptr = NULL;
2452 return 0;
2453 }
2454
116c20d2 2455 if (!(tblptr || NAME (aout, slurp_reloc_table) (abfd, section, symbols)))
252b5132
RH		 2456 return -1;
2457
923f08ff
AM		 2458 if (section->flags & SEC_CONSTRUCTOR)
2459 {
2460 arelent_chain *chain = section->constructor_chain;
2461 for (count = 0; count < section->reloc_count; count ++)
2462 {
2463 *relptr ++ = &chain->relent;
2464 chain = chain->next;
2465 }
252b5132 2466 }
923f08ff
AM		 2467 else
2468 {
2469 tblptr = section->relocation;
252b5132 2470
923f08ff
AM		 2471 for (count = 0; count++ < section->reloc_count; )
2472 {
2473 *relptr++ = tblptr++;
2474 }
2475 }
252b5132
RH		 2476 *relptr = 0;
2477
2478 return section->reloc_count;
2479}
2480
2481long
116c20d2 2482NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect)
252b5132 2483{
3a551c7a
AM		 2484 bfd_size_type count;
2485
923f08ff
AM		 2486 if (bfd_get_format (abfd) != bfd_object)
2487 {
2488 bfd_set_error (bfd_error_invalid_operation);
2489 return -1;
2490 }
f7c33884 2491
923f08ff 2492 if (asect->flags & SEC_CONSTRUCTOR)
3a551c7a
AM		 2493 count = asect->reloc_count;
2494 else if (asect == obj_datasec (abfd))
2495 count = exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
2496 else if (asect == obj_textsec (abfd))
2497 count = exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
2498 else if (asect == obj_bsssec (abfd))
2499 count = 0;
2500 else
2501 {
2502 bfd_set_error (bfd_error_invalid_operation);
2503 return -1;
2504 }
252b5132 2505
3a551c7a
AM		 2506 if (count >= LONG_MAX / sizeof (arelent *))
2507 {
2508 bfd_set_error (bfd_error_file_too_big);
2509 return -1;
2510 }
2511 return (count + 1) * sizeof (arelent *);
252b5132 2512}
252b5132
RH		 2513\f
2514long
116c20d2 2515NAME (aout, get_symtab_upper_bound) (bfd *abfd)
252b5132 2516{
116c20d2 2517 if (!NAME (aout, slurp_symbol_table) (abfd))
252b5132
RH		 2518 return -1;
2519
2520 return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
2521}
2522
1725a96e 2523alent *
116c20d2
NC		 2524NAME (aout, get_lineno) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2525 asymbol *ignore_symbol ATTRIBUTE_UNUSED)
252b5132 2526{
116c20d2 2527 return NULL;
252b5132
RH		 2528}
2529
252b5132 2530void
116c20d2
NC		 2531NAME (aout, get_symbol_info) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2532 asymbol *symbol,
2533 symbol_info *ret)
252b5132
RH		 2534{
2535 bfd_symbol_info (symbol, ret);
2536
2537 if (ret->type == '?')
2538 {
923f08ff 2539 int type_code = aout_symbol (symbol)->type & 0xff;
252b5132
RH		 2540 const char *stab_name = bfd_get_stab_name (type_code);
2541 static char buf[10];
2542
2543 if (stab_name == NULL)
2544 {
e60b52c6 2545 sprintf (buf, "(%d)", type_code);
252b5132
RH		 2546 stab_name = buf;
2547 }
2548 ret->type = '-';
2549 ret->stab_type = type_code;
923f08ff
AM		 2550 ret->stab_other = (unsigned) (aout_symbol (symbol)->other & 0xff);
2551 ret->stab_desc = (unsigned) (aout_symbol (symbol)->desc & 0xffff);
252b5132
RH		 2552 ret->stab_name = stab_name;
2553 }
2554}
2555
252b5132 2556void
116c20d2
NC		 2557NAME (aout, print_symbol) (bfd *abfd,
2558 void * afile,
2559 asymbol *symbol,
2560 bfd_print_symbol_type how)
252b5132
RH		 2561{
2562 FILE *file = (FILE *)afile;
2563
923f08ff 2564 switch (how)
252b5132 2565 {
923f08ff
AM		 2566 case bfd_print_symbol_name:
2567 if (symbol->name)
2568 fprintf (file,"%s", symbol->name);
2569 break;
2570 case bfd_print_symbol_more:
2571 fprintf (file,"%4x %2x %2x",
2572 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2573 (unsigned) (aout_symbol (symbol)->other & 0xff),
2574 (unsigned) (aout_symbol (symbol)->type));
2575 break;
2576 case bfd_print_symbol_all:
2577 {
2578 const char *section_name = symbol->section->name;
252b5132 2579
116c20d2 2580 bfd_print_symbol_vandf (abfd, (void *)file, symbol);
252b5132 2581
923f08ff
AM		 2582 fprintf (file," %-5s %04x %02x %02x",
2583 section_name,
2584 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2585 (unsigned) (aout_symbol (symbol)->other & 0xff),
2586 (unsigned) (aout_symbol (symbol)->type & 0xff));
2587 if (symbol->name)
2588 fprintf (file," %s", symbol->name);
2589 }
2590 break;
252b5132 2591 }
252b5132
RH		 2592}
2593
2594/* If we don't have to allocate more than 1MB to hold the generic
2595 symbols, we use the generic minisymbol methord: it's faster, since
2596 it only translates the symbols once, not multiple times. */
2597#define MINISYM_THRESHOLD (1000000 / sizeof (asymbol))
2598
2599/* Read minisymbols. For minisymbols, we use the unmodified a.out
2600 symbols. The minisymbol_to_symbol function translates these into
2601 BFD asymbol structures. */
2602
2603long
116c20d2
NC		 2604NAME (aout, read_minisymbols) (bfd *abfd,
2605 bfd_boolean dynamic,
2606 void * *minisymsp,
2607 unsigned int *sizep)
252b5132
RH		 2608{
2609 if (dynamic)
116c20d2
NC		 2610 /* We could handle the dynamic symbols here as well, but it's
2611 easier to hand them off. */
2612 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
252b5132
RH		 2613
2614 if (! aout_get_external_symbols (abfd))
2615 return -1;
2616
2617 if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2618 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
2619
116c20d2 2620 *minisymsp = (void *) obj_aout_external_syms (abfd);
252b5132
RH		 2621
2622 /* By passing the external symbols back from this routine, we are
2623 giving up control over the memory block. Clear
2624 obj_aout_external_syms, so that we do not try to free it
2625 ourselves. */
2626 obj_aout_external_syms (abfd) = NULL;
2627
2628 *sizep = EXTERNAL_NLIST_SIZE;
2629 return obj_aout_external_sym_count (abfd);
2630}
2631
2632/* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
2633 unmodified a.out symbol. The SYM argument is a structure returned
2634 by bfd_make_empty_symbol, which we fill in here. */
2635
2636asymbol *
116c20d2
NC		 2637NAME (aout, minisymbol_to_symbol) (bfd *abfd,
2638 bfd_boolean dynamic,
2639 const void * minisym,
2640 asymbol *sym)
252b5132
RH		 2641{
2642 if (dynamic
2643 || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2644 return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
2645
2646 memset (sym, 0, sizeof (aout_symbol_type));
2647
2648 /* We call translate_symbol_table to translate a single symbol. */
116c20d2 2649 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 2650 (abfd,
2651 (aout_symbol_type *) sym,
2652 (struct external_nlist *) minisym,
2653 (bfd_size_type) 1,
2654 obj_aout_external_strings (abfd),
2655 obj_aout_external_string_size (abfd),
b34976b6 2656 FALSE)))
252b5132
RH		 2657 return NULL;
2658
2659 return sym;
2660}
2661
f7c33884
NC		 2662/* Provided a BFD, a section and an offset into the section, calculate
2663 and return the name of the source file and the line nearest to the
2664 wanted location. */
252b5132 2665
b34976b6 2666bfd_boolean
116c20d2 2667NAME (aout, find_nearest_line) (bfd *abfd,
116c20d2 2668 asymbol **symbols,
fb167eb2 2669 asection *section,
116c20d2
NC		 2670 bfd_vma offset,
2671 const char **filename_ptr,
2672 const char **functionname_ptr,
fb167eb2
AM		 2673 unsigned int *line_ptr,
2674 unsigned int *disriminator_ptr)
252b5132 2675{
f7c33884 2676 /* Run down the file looking for the filename, function and linenumber. */
252b5132 2677 asymbol **p;
dc810e39
AM		 2678 const char *directory_name = NULL;
2679 const char *main_file_name = NULL;
2680 const char *current_file_name = NULL;
116c20d2 2681 const char *line_file_name = NULL; /* Value of current_file_name at line number. */
dc810e39 2682 const char *line_directory_name = NULL; /* Value of directory_name at line number. */
252b5132
RH		 2683 bfd_vma low_line_vma = 0;
2684 bfd_vma low_func_vma = 0;
2685 asymbol *func = 0;
dc810e39 2686 bfd_size_type filelen, funclen;
252b5132
RH		 2687 char *buf;
2688
765cf5f6 2689 *filename_ptr = bfd_get_filename (abfd);
50455f1a 2690 *functionname_ptr = NULL;
252b5132 2691 *line_ptr = 0;
fb167eb2
AM		 2692 if (disriminator_ptr)
2693 *disriminator_ptr = 0;
f7c33884 2694
116c20d2 2695 if (symbols != NULL)
923f08ff
AM		 2696 {
2697 for (p = symbols; *p; p++)
2698 {
2699 aout_symbol_type *q = (aout_symbol_type *) (*p);
2700 next:
2701 switch (q->type)
2702 {
2703 case N_TEXT:
2704 /* If this looks like a file name symbol, and it comes after
2705 the line number we have found so far, but before the
2706 offset, then we have probably not found the right line
2707 number. */
2708 if (q->symbol.value <= offset
2709 && ((q->symbol.value > low_line_vma
2710 && (line_file_name != NULL
2711 || *line_ptr != 0))
2712 || (q->symbol.value > low_func_vma
2713 && func != NULL)))
2714 {
2715 const char *symname;
252b5132 2716
923f08ff 2717 symname = q->symbol.name;
808346fc
NC		 2718
2719 if (symname != NULL
2720 && strlen (symname) > 2
2721 && strcmp (symname + strlen (symname) - 2, ".o") == 0)
923f08ff
AM		 2722 {
2723 if (q->symbol.value > low_line_vma)
2724 {
2725 *line_ptr = 0;
2726 line_file_name = NULL;
2727 }
2728 if (q->symbol.value > low_func_vma)
2729 func = NULL;
2730 }
2731 }
2732 break;
252b5132 2733
923f08ff
AM		 2734 case N_SO:
2735 /* If this symbol is less than the offset, but greater than
2736 the line number we have found so far, then we have not
2737 found the right line number. */
2738 if (q->symbol.value <= offset)
2739 {
2740 if (q->symbol.value > low_line_vma)
2741 {
2742 *line_ptr = 0;
2743 line_file_name = NULL;
2744 }
2745 if (q->symbol.value > low_func_vma)
2746 func = NULL;
2747 }
252b5132 2748
923f08ff
AM		 2749 main_file_name = current_file_name = q->symbol.name;
2750 /* Look ahead to next symbol to check if that too is an N_SO. */
2751 p++;
2752 if (*p == NULL)
c3864421 2753 goto done;
923f08ff
AM		 2754 q = (aout_symbol_type *) (*p);
2755 if (q->type != (int)N_SO)
2756 goto next;
2757
2758 /* Found a second N_SO First is directory; second is filename. */
2759 directory_name = current_file_name;
2760 main_file_name = current_file_name = q->symbol.name;
2761 if (obj_textsec (abfd) != section)
2762 goto done;
2763 break;
2764 case N_SOL:
2765 current_file_name = q->symbol.name;
2766 break;
252b5132 2767
923f08ff 2768 case N_SLINE:
252b5132 2769
923f08ff
AM		 2770 case N_DSLINE:
2771 case N_BSLINE:
2772 /* We'll keep this if it resolves nearer than the one we have
2773 already. */
2774 if (q->symbol.value >= low_line_vma
2775 && q->symbol.value <= offset)
2776 {
2777 *line_ptr = q->desc;
2778 low_line_vma = q->symbol.value;
2779 line_file_name = current_file_name;
2780 line_directory_name = directory_name;
2781 }
2782 break;
2783 case N_FUN:
2784 {
f7c33884 2785 /* We'll keep this if it is nearer than the one we have already. */
808346fc
NC		 2786 if (q->symbol.value >= low_func_vma
2787 && q->symbol.value <= offset)
f7c33884
NC		 2788 {
2789 low_func_vma = q->symbol.value;
2790 func = (asymbol *)q;
2791 }
923f08ff
AM		 2792 else if (q->symbol.value > offset)
2793 goto done;
2794 }
2795 break;
2796 }
252b5132 2797 }
252b5132 2798 }
252b5132
RH		 2799
2800 done:
2801 if (*line_ptr != 0)
2802 {
2803 main_file_name = line_file_name;
2804 directory_name = line_directory_name;
2805 }
2806
2807 if (main_file_name == NULL
5af11cab 2808 || IS_ABSOLUTE_PATH (main_file_name)
252b5132
RH		 2809 || directory_name == NULL)
2810 filelen = 0;
2811 else
2812 filelen = strlen (directory_name) + strlen (main_file_name);
f7c33884 2813
252b5132
RH		 2814 if (func == NULL)
2815 funclen = 0;
2816 else
2817 funclen = strlen (bfd_asymbol_name (func));
2818
c9594989 2819 free (adata (abfd).line_buf);
f7c33884 2820
252b5132
RH		 2821 if (filelen + funclen == 0)
2822 adata (abfd).line_buf = buf = NULL;
2823 else
2824 {
a50b1753 2825 buf = (char *) bfd_malloc (filelen + funclen + 3);
252b5132
RH		 2826 adata (abfd).line_buf = buf;
2827 if (buf == NULL)
b34976b6 2828 return FALSE;
252b5132
RH		 2829 }
2830
2831 if (main_file_name != NULL)
2832 {
5af11cab 2833 if (IS_ABSOLUTE_PATH (main_file_name) || directory_name == NULL)
252b5132
RH		 2834 *filename_ptr = main_file_name;
2835 else
2836 {
50455f1a
NC		 2837 if (buf == NULL)
2838 /* PR binutils/20891: In a corrupt input file both
2839 main_file_name and directory_name can be empty... */
2840 * filename_ptr = NULL;
2841 else
2842 {
2843 snprintf (buf, filelen + 1, "%s%s", directory_name,
2844 main_file_name);
2845 *filename_ptr = buf;
2846 buf += filelen + 1;
2847 }
252b5132
RH		 2848 }
2849 }
2850
2851 if (func)
2852 {
2853 const char *function = func->name;
dc810e39 2854 char *colon;
252b5132 2855
e82ab856
NC		 2856 if (buf == NULL)
2857 {
2858 /* PR binutils/20892: In a corrupt input file func can be empty. */
2859 * functionname_ptr = NULL;
2860 return TRUE;
2861 }
252b5132
RH		 2862 /* The caller expects a symbol name. We actually have a
2863 function name, without the leading underscore. Put the
2864 underscore back in, so that the caller gets a symbol name. */
2865 if (bfd_get_symbol_leading_char (abfd) == '\0')
2866 strcpy (buf, function);
2867 else
2868 {
2869 buf[0] = bfd_get_symbol_leading_char (abfd);
2870 strcpy (buf + 1, function);
2871 }
f7c33884 2872 /* Have to remove : stuff. */
dc810e39
AM		 2873 colon = strchr (buf, ':');
2874 if (colon != NULL)
2875 *colon = '\0';
252b5132
RH		 2876 *functionname_ptr = buf;
2877 }
2878
b34976b6 2879 return TRUE;
252b5132
RH		 2880}
2881
252b5132 2882int
a6b96beb
AM		 2883NAME (aout, sizeof_headers) (bfd *abfd,
2884 struct bfd_link_info *info ATTRIBUTE_UNUSED)
252b5132 2885{
923f08ff 2886 return adata (abfd).exec_bytes_size;
252b5132
RH		 2887}
2888
2889/* Free all information we have cached for this BFD. We can always
2890 read it again later if we need it. */
2891
b34976b6 2892bfd_boolean
116c20d2 2893NAME (aout, bfd_free_cached_info) (bfd *abfd)
252b5132
RH		 2894{
2895 asection *o;
2896
920581c5
L		 2897 if (bfd_get_format (abfd) != bfd_object
2898 || abfd->tdata.aout_data == NULL)
b34976b6 2899 return TRUE;
252b5132 2900
c9594989 2901#define BFCI_FREE(x) do { free (x); x = NULL; } while (0)
252b5132
RH		 2902 BFCI_FREE (obj_aout_symbols (abfd));
2903#ifdef USE_MMAP
2904 obj_aout_external_syms (abfd) = 0;
2905 bfd_free_window (&obj_aout_sym_window (abfd));
2906 bfd_free_window (&obj_aout_string_window (abfd));
2907 obj_aout_external_strings (abfd) = 0;
2908#else
2909 BFCI_FREE (obj_aout_external_syms (abfd));
2910 BFCI_FREE (obj_aout_external_strings (abfd));
2911#endif
116c20d2 2912 for (o = abfd->sections; o != NULL; o = o->next)
252b5132
RH		 2913 BFCI_FREE (o->relocation);
2914#undef BFCI_FREE
2915
b34976b6 2916 return TRUE;
252b5132
RH		 2917}
2918\f
2919/* a.out link code. */
2920
252b5132
RH		 2921/* Routine to create an entry in an a.out link hash table. */
2922
2923struct bfd_hash_entry *
116c20d2
NC		 2924NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry,
2925 struct bfd_hash_table *table,
2926 const char *string)
252b5132
RH		 2927{
2928 struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry;
2929
2930 /* Allocate the structure if it has not already been allocated by a
2931 subclass. */
116c20d2 2932 if (ret == NULL)
a50b1753 2933 ret = (struct aout_link_hash_entry *) bfd_hash_allocate (table,
07d6d2b8 2934 sizeof (* ret));
116c20d2
NC		 2935 if (ret == NULL)
2936 return NULL;
252b5132
RH		 2937
2938 /* Call the allocation method of the superclass. */
2939 ret = ((struct aout_link_hash_entry *)
2940 _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2941 table, string));
2942 if (ret)
2943 {
2944 /* Set local fields. */
b34976b6 2945 ret->written = FALSE;
252b5132
RH		 2946 ret->indx = -1;
2947 }
2948
2949 return (struct bfd_hash_entry *) ret;
2950}
2951
2952/* Initialize an a.out link hash table. */
2953
b34976b6 2954bfd_boolean
116c20d2
NC		 2955NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table,
2956 bfd *abfd,
2957 struct bfd_hash_entry *(*newfunc)
2958 (struct bfd_hash_entry *, struct bfd_hash_table *,
66eb6687
AM		 2959 const char *),
2960 unsigned int entsize)
252b5132 2961{
66eb6687 2962 return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize);
252b5132
RH		 2963}
2964
2965/* Create an a.out link hash table. */
2966
2967struct bfd_link_hash_table *
116c20d2 2968NAME (aout, link_hash_table_create) (bfd *abfd)
252b5132
RH		 2969{
2970 struct aout_link_hash_table *ret;
986f0783 2971 size_t amt = sizeof (* ret);
252b5132 2972
a50b1753 2973 ret = (struct aout_link_hash_table *) bfd_malloc (amt);
252b5132 2974 if (ret == NULL)
116c20d2 2975 return NULL;
5ed6aba4 2976
66eb6687
AM		 2977 if (!NAME (aout, link_hash_table_init) (ret, abfd,
2978 NAME (aout, link_hash_newfunc),
2979 sizeof (struct aout_link_hash_entry)))
252b5132
RH		 2980 {
2981 free (ret);
116c20d2 2982 return NULL;
252b5132
RH		 2983 }
2984 return &ret->root;
2985}
2986
116c20d2 2987/* Add all symbols from an object file to the hash table. */
252b5132 2988
b34976b6 2989static bfd_boolean
116c20d2 2990aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 2991{
116c20d2
NC		 2992 bfd_boolean (*add_one_symbol)
2993 (struct bfd_link_info *, bfd *, const char *, flagword, asection *,
2994 bfd_vma, const char *, bfd_boolean, bfd_boolean,
2995 struct bfd_link_hash_entry **);
2996 struct external_nlist *syms;
2997 bfd_size_type sym_count;
2998 char *strings;
2999 bfd_boolean copy;
3000 struct aout_link_hash_entry **sym_hash;
3001 struct external_nlist *p;
3002 struct external_nlist *pend;
3003 bfd_size_type amt;
252b5132 3004
116c20d2
NC		 3005 syms = obj_aout_external_syms (abfd);
3006 sym_count = obj_aout_external_sym_count (abfd);
3007 strings = obj_aout_external_strings (abfd);
3008 if (info->keep_memory)
3009 copy = FALSE;
3010 else
3011 copy = TRUE;
252b5132 3012
116c20d2 3013 if (aout_backend_info (abfd)->add_dynamic_symbols != NULL)
252b5132 3014 {
116c20d2
NC		 3015 if (! ((*aout_backend_info (abfd)->add_dynamic_symbols)
3016 (abfd, info, &syms, &sym_count, &strings)))
b34976b6 3017 return FALSE;
252b5132
RH		 3018 }
3019
20c6e70e
MS		 3020 if (sym_count == 0)
3021 return TRUE; /* Nothing to do. */
3022
116c20d2
NC		 3023 /* We keep a list of the linker hash table entries that correspond
3024 to particular symbols. We could just look them up in the hash
3025 table, but keeping the list is more efficient. Perhaps this
3026 should be conditional on info->keep_memory. */
3027 amt = sym_count * sizeof (struct aout_link_hash_entry *);
a50b1753 3028 sym_hash = (struct aout_link_hash_entry **) bfd_alloc (abfd, amt);
20c6e70e 3029 if (sym_hash == NULL)
116c20d2
NC		 3030 return FALSE;
3031 obj_aout_sym_hashes (abfd) = sym_hash;
252b5132 3032
116c20d2
NC		 3033 add_one_symbol = aout_backend_info (abfd)->add_one_symbol;
3034 if (add_one_symbol == NULL)
3035 add_one_symbol = _bfd_generic_link_add_one_symbol;
252b5132 3036
116c20d2
NC		 3037 p = syms;
3038 pend = p + sym_count;
3039 for (; p < pend; p++, sym_hash++)
252b5132 3040 {
116c20d2 3041 int type;
252b5132 3042 const char *name;
116c20d2
NC		 3043 bfd_vma value;
3044 asection *section;
3045 flagword flags;
3046 const char *string;
252b5132 3047
116c20d2 3048 *sym_hash = NULL;
252b5132 3049
116c20d2 3050 type = H_GET_8 (abfd, p->e_type);
252b5132 3051
116c20d2
NC		 3052 /* Ignore debugging symbols. */
3053 if ((type & N_STAB) != 0)
3054 continue;
252b5132 3055
e517df3d 3056 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
531336e3 3057 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3058 return FALSE;
116c20d2
NC		 3059 name = strings + GET_WORD (abfd, p->e_strx);
3060 value = GET_WORD (abfd, p->e_value);
3061 flags = BSF_GLOBAL;
3062 string = NULL;
3063 switch (type)
252b5132 3064 {
116c20d2
NC		 3065 default:
3066 abort ();
f7c33884 3067
116c20d2
NC		 3068 case N_UNDF:
3069 case N_ABS:
3070 case N_TEXT:
3071 case N_DATA:
3072 case N_BSS:
3073 case N_FN_SEQ:
3074 case N_COMM:
3075 case N_SETV:
3076 case N_FN:
3077 /* Ignore symbols that are not externally visible. */
3078 continue;
3079 case N_INDR:
3080 /* Ignore local indirect symbol. */
3081 ++p;
3082 ++sym_hash;
3083 continue;
252b5132 3084
116c20d2
NC		 3085 case N_UNDF | N_EXT:
3086 if (value == 0)
f7c33884 3087 {
116c20d2
NC		 3088 section = bfd_und_section_ptr;
3089 flags = 0;
252b5132
RH		 3090 }
3091 else
3092 section = bfd_com_section_ptr;
3093 break;
3094 case N_ABS | N_EXT:
3095 section = bfd_abs_section_ptr;
3096 break;
3097 case N_TEXT | N_EXT:
3098 section = obj_textsec (abfd);
fd361982 3099 value -= bfd_section_vma (section);
252b5132
RH		 3100 break;
3101 case N_DATA | N_EXT:
3102 case N_SETV | N_EXT:
3103 /* Treat N_SETV symbols as N_DATA symbol; see comment in
3104 translate_from_native_sym_flags. */
3105 section = obj_datasec (abfd);
fd361982 3106 value -= bfd_section_vma (section);
252b5132
RH		 3107 break;
3108 case N_BSS | N_EXT:
3109 section = obj_bsssec (abfd);
fd361982 3110 value -= bfd_section_vma (section);
252b5132
RH		 3111 break;
3112 case N_INDR | N_EXT:
3113 /* An indirect symbol. The next symbol is the symbol
3114 which this one really is. */
39d4daf6
NC		 3115 /* See PR 20925 for a reproducer. */
3116 if (p + 1 >= pend)
3117 return FALSE;
252b5132 3118 ++p;
e517df3d 3119 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3120 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3121 return FALSE;
252b5132
RH		 3122 string = strings + GET_WORD (abfd, p->e_strx);
3123 section = bfd_ind_section_ptr;
3124 flags |= BSF_INDIRECT;
3125 break;
3126 case N_COMM | N_EXT:
3127 section = bfd_com_section_ptr;
3128 break;
3129 case N_SETA: case N_SETA | N_EXT:
3130 section = bfd_abs_section_ptr;
3131 flags |= BSF_CONSTRUCTOR;
3132 break;
3133 case N_SETT: case N_SETT | N_EXT:
3134 section = obj_textsec (abfd);
3135 flags |= BSF_CONSTRUCTOR;
fd361982 3136 value -= bfd_section_vma (section);
252b5132
RH		 3137 break;
3138 case N_SETD: case N_SETD | N_EXT:
3139 section = obj_datasec (abfd);
3140 flags |= BSF_CONSTRUCTOR;
fd361982 3141 value -= bfd_section_vma (section);
252b5132
RH		 3142 break;
3143 case N_SETB: case N_SETB | N_EXT:
3144 section = obj_bsssec (abfd);
3145 flags |= BSF_CONSTRUCTOR;
fd361982 3146 value -= bfd_section_vma (section);
252b5132
RH		 3147 break;
3148 case N_WARNING:
3149 /* A warning symbol. The next symbol is the one to warn
9f400ee9
HPN		 3150 about. If there is no next symbol, just look away. */
3151 if (p + 1 >= pend)
3152 return TRUE;
252b5132
RH		 3153 ++p;
3154 string = name;
e517df3d 3155 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3156 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3157 return FALSE;
252b5132
RH		 3158 name = strings + GET_WORD (abfd, p->e_strx);
3159 section = bfd_und_section_ptr;
3160 flags |= BSF_WARNING;
3161 break;
3162 case N_WEAKU:
3163 section = bfd_und_section_ptr;
3164 flags = BSF_WEAK;
3165 break;
3166 case N_WEAKA:
3167 section = bfd_abs_section_ptr;
3168 flags = BSF_WEAK;
3169 break;
3170 case N_WEAKT:
3171 section = obj_textsec (abfd);
fd361982 3172 value -= bfd_section_vma (section);
252b5132
RH		 3173 flags = BSF_WEAK;
3174 break;
3175 case N_WEAKD:
3176 section = obj_datasec (abfd);
fd361982 3177 value -= bfd_section_vma (section);
252b5132
RH		 3178 flags = BSF_WEAK;
3179 break;
3180 case N_WEAKB:
3181 section = obj_bsssec (abfd);
fd361982 3182 value -= bfd_section_vma (section);
252b5132
RH		 3183 flags = BSF_WEAK;
3184 break;
3185 }
3186
3187 if (! ((*add_one_symbol)
b34976b6 3188 (info, abfd, name, flags, section, value, string, copy, FALSE,
252b5132 3189 (struct bfd_link_hash_entry **) sym_hash)))
b34976b6 3190 return FALSE;
252b5132
RH		 3191
3192 /* Restrict the maximum alignment of a common symbol based on
3193 the architecture, since a.out has no way to represent
3194 alignment requirements of a section in a .o file. FIXME:
3195 This isn't quite right: it should use the architecture of the
3196 output file, not the input files. */
3197 if ((*sym_hash)->root.type == bfd_link_hash_common
3198 && ((*sym_hash)->root.u.c.p->alignment_power >
3199 bfd_get_arch_info (abfd)->section_align_power))
3200 (*sym_hash)->root.u.c.p->alignment_power =
3201 bfd_get_arch_info (abfd)->section_align_power;
3202
3203 /* If this is a set symbol, and we are not building sets, then
3204 it is possible for the hash entry to not have been set. In
3205 such a case, treat the symbol as not globally defined. */
3206 if ((*sym_hash)->root.type == bfd_link_hash_new)
3207 {
3208 BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0);
3209 *sym_hash = NULL;
3210 }
3211
3212 if (type == (N_INDR | N_EXT) || type == N_WARNING)
3213 ++sym_hash;
3214 }
3215
b34976b6 3216 return TRUE;
252b5132 3217}
252b5132 3218
116c20d2
NC		 3219/* Free up the internal symbols read from an a.out file. */
3220
3221static bfd_boolean
3222aout_link_free_symbols (bfd *abfd)
252b5132 3223{
116c20d2
NC		 3224 if (obj_aout_external_syms (abfd) != NULL)
3225 {
3226#ifdef USE_MMAP
3227 bfd_free_window (&obj_aout_sym_window (abfd));
3228#else
3229 free ((void *) obj_aout_external_syms (abfd));
3230#endif
3231 obj_aout_external_syms (abfd) = NULL;
3232 }
3233 if (obj_aout_external_strings (abfd) != NULL)
3234 {
3235#ifdef USE_MMAP
3236 bfd_free_window (&obj_aout_string_window (abfd));
3237#else
3238 free ((void *) obj_aout_external_strings (abfd));
3239#endif
3240 obj_aout_external_strings (abfd) = NULL;
3241 }
3242 return TRUE;
3243}
252b5132 3244
116c20d2 3245/* Add symbols from an a.out object file. */
252b5132 3246
116c20d2
NC		 3247static bfd_boolean
3248aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 3249{
116c20d2
NC		 3250 if (! aout_get_external_symbols (abfd))
3251 return FALSE;
3252 if (! aout_link_add_symbols (abfd, info))
3253 return FALSE;
3254 if (! info->keep_memory)
3255 {
3256 if (! aout_link_free_symbols (abfd))
3257 return FALSE;
3258 }
3259 return TRUE;
3260}
252b5132 3261
116c20d2
NC		 3262/* Look through the internal symbols to see if this object file should
3263 be included in the link. We should include this object file if it
3264 defines any symbols which are currently undefined. If this object
3265 file defines a common symbol, then we may adjust the size of the
3266 known symbol but we do not include the object file in the link
3267 (unless there is some other reason to include it). */
252b5132 3268
116c20d2
NC		 3269static bfd_boolean
3270aout_link_check_ar_symbols (bfd *abfd,
3271 struct bfd_link_info *info,
5d3236ee
DK		 3272 bfd_boolean *pneeded,
3273 bfd **subsbfd)
252b5132 3274{
116c20d2
NC		 3275 struct external_nlist *p;
3276 struct external_nlist *pend;
3277 char *strings;
252b5132 3278
116c20d2 3279 *pneeded = FALSE;
252b5132 3280
116c20d2
NC		 3281 /* Look through all the symbols. */
3282 p = obj_aout_external_syms (abfd);
3283 pend = p + obj_aout_external_sym_count (abfd);
3284 strings = obj_aout_external_strings (abfd);
3285 for (; p < pend; p++)
3286 {
3287 int type = H_GET_8 (abfd, p->e_type);
3288 const char *name;
3289 struct bfd_link_hash_entry *h;
252b5132 3290
116c20d2
NC		 3291 /* Ignore symbols that are not externally visible. This is an
3292 optimization only, as we check the type more thoroughly
3293 below. */
3294 if (((type & N_EXT) == 0
3295 || (type & N_STAB) != 0
3296 || type == N_FN)
3297 && type != N_WEAKA
3298 && type != N_WEAKT
3299 && type != N_WEAKD
3300 && type != N_WEAKB)
3301 {
3302 if (type == N_WARNING
3303 || type == N_INDR)
3304 ++p;
3305 continue;
3306 }
3307
3308 name = strings + GET_WORD (abfd, p->e_strx);
3309 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
3310
3311 /* We are only interested in symbols that are currently
3312 undefined or common. */
3313 if (h == NULL
3314 || (h->type != bfd_link_hash_undefined
3315 && h->type != bfd_link_hash_common))
3316 {
3317 if (type == (N_INDR | N_EXT))
3318 ++p;
3319 continue;
3320 }
3321
3322 if (type == (N_TEXT | N_EXT)
3323 || type == (N_DATA | N_EXT)
3324 || type == (N_BSS | N_EXT)
3325 || type == (N_ABS | N_EXT)
3326 || type == (N_INDR | N_EXT))
3327 {
3328 /* This object file defines this symbol. We must link it
3329 in. This is true regardless of whether the current
3330 definition of the symbol is undefined or common.
3331
07d6d2b8 3332 If the current definition is common, we have a case in
116c20d2 3333 which we have already seen an object file including:
07d6d2b8 3334 int a;
116c20d2 3335 and this object file from the archive includes:
07d6d2b8 3336 int a = 5;
116c20d2 3337 In such a case, whether to include this object is target
07d6d2b8 3338 dependant for backward compatibility.
116c20d2
NC		 3339
3340 FIXME: The SunOS 4.1.3 linker will pull in the archive
3341 element if the symbol is defined in the .data section,
3342 but not if it is defined in the .text section. That
3343 seems a bit crazy to me, and it has not been implemented
3344 yet. However, it might be correct. */
3345 if (h->type == bfd_link_hash_common)
3346 {
3347 int skip = 0;
3348
f88dc410 3349 switch (info->common_skip_ar_symbols)
116c20d2 3350 {
a78eea16
AM		 3351 case bfd_link_common_skip_none:
3352 break;
116c20d2
NC		 3353 case bfd_link_common_skip_text:
3354 skip = (type == (N_TEXT | N_EXT));
3355 break;
3356 case bfd_link_common_skip_data:
3357 skip = (type == (N_DATA | N_EXT));
3358 break;
116c20d2
NC		 3359 case bfd_link_common_skip_all:
3360 skip = 1;
3361 break;
3362 }
3363
3364 if (skip)
3365 continue;
3366 }
3367
0e144ba7
AM		 3368 if (!(*info->callbacks
3369 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3370 return FALSE;
3371 *pneeded = TRUE;
3372 return TRUE;
3373 }
3374
3375 if (type == (N_UNDF | N_EXT))
3376 {
3377 bfd_vma value;
3378
3379 value = GET_WORD (abfd, p->e_value);
3380 if (value != 0)
3381 {
3382 /* This symbol is common in the object from the archive
3383 file. */
3384 if (h->type == bfd_link_hash_undefined)
3385 {
3386 bfd *symbfd;
3387 unsigned int power;
3388
3389 symbfd = h->u.undef.abfd;
3390 if (symbfd == NULL)
3391 {
3392 /* This symbol was created as undefined from
3393 outside BFD. We assume that we should link
3394 in the object file. This is done for the -u
3395 option in the linker. */
0e144ba7
AM		 3396 if (!(*info->callbacks
3397 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3398 return FALSE;
3399 *pneeded = TRUE;
3400 return TRUE;
3401 }
3402 /* Turn the current link symbol into a common
3403 symbol. It is already on the undefs list. */
3404 h->type = bfd_link_hash_common;
a50b1753 3405 h->u.c.p = (struct bfd_link_hash_common_entry *)
0e144ba7
AM		 3406 bfd_hash_allocate (&info->hash->table,
3407 sizeof (struct bfd_link_hash_common_entry));
116c20d2
NC		 3408 if (h->u.c.p == NULL)
3409 return FALSE;
3410
3411 h->u.c.size = value;
3412
3413 /* FIXME: This isn't quite right. The maximum
3414 alignment of a common symbol should be set by the
3415 architecture of the output file, not of the input
3416 file. */
3417 power = bfd_log2 (value);
3418 if (power > bfd_get_arch_info (abfd)->section_align_power)
3419 power = bfd_get_arch_info (abfd)->section_align_power;
3420 h->u.c.p->alignment_power = power;
3421
3422 h->u.c.p->section = bfd_make_section_old_way (symbfd,
3423 "COMMON");
3424 }
3425 else
3426 {
3427 /* Adjust the size of the common symbol if
3428 necessary. */
3429 if (value > h->u.c.size)
3430 h->u.c.size = value;
3431 }
3432 }
3433 }
3434
3435 if (type == N_WEAKA
3436 || type == N_WEAKT
3437 || type == N_WEAKD
3438 || type == N_WEAKB)
3439 {
3440 /* This symbol is weak but defined. We must pull it in if
3441 the current link symbol is undefined, but we don't want
3442 it if the current link symbol is common. */
3443 if (h->type == bfd_link_hash_undefined)
3444 {
0e144ba7
AM		 3445 if (!(*info->callbacks
3446 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3447 return FALSE;
3448 *pneeded = TRUE;
3449 return TRUE;
3450 }
3451 }
3452 }
3453
3454 /* We do not need this object file. */
3455 return TRUE;
3456}
3457/* Check a single archive element to see if we need to include it in
3458 the link. *PNEEDED is set according to whether this element is
3459 needed in the link or not. This is called from
3460 _bfd_generic_link_add_archive_symbols. */
3461
3462static bfd_boolean
3463aout_link_check_archive_element (bfd *abfd,
3464 struct bfd_link_info *info,
13e570f8
AM		 3465 struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
3466 const char *name ATTRIBUTE_UNUSED,
116c20d2
NC		 3467 bfd_boolean *pneeded)
3468{
0e144ba7
AM		 3469 bfd *oldbfd;
3470 bfd_boolean needed;
5d3236ee 3471
0e144ba7 3472 if (!aout_get_external_symbols (abfd))
116c20d2
NC		 3473 return FALSE;
3474
0e144ba7
AM		 3475 oldbfd = abfd;
3476 if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd))
116c20d2
NC		 3477 return FALSE;
3478
0e144ba7
AM		 3479 needed = *pneeded;
3480 if (needed)
116c20d2 3481 {
5d3236ee
DK		 3482 /* Potentially, the add_archive_element hook may have set a
3483 substitute BFD for us. */
0e144ba7
AM		 3484 if (abfd != oldbfd)
3485 {
3486 if (!info->keep_memory
3487 && !aout_link_free_symbols (oldbfd))
3488 return FALSE;
3489 if (!aout_get_external_symbols (abfd))
3490 return FALSE;
3491 }
3492 if (!aout_link_add_symbols (abfd, info))
116c20d2
NC		 3493 return FALSE;
3494 }
3495
0e144ba7 3496 if (!info->keep_memory || !needed)
116c20d2 3497 {
0e144ba7 3498 if (!aout_link_free_symbols (abfd))
116c20d2
NC		 3499 return FALSE;
3500 }
3501
3502 return TRUE;
3503}
3504
3505/* Given an a.out BFD, add symbols to the global hash table as
3506 appropriate. */
3507
3508bfd_boolean
3509NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
3510{
3511 switch (bfd_get_format (abfd))
3512 {
3513 case bfd_object:
3514 return aout_link_add_object_symbols (abfd, info);
3515 case bfd_archive:
3516 return _bfd_generic_link_add_archive_symbols
3517 (abfd, info, aout_link_check_archive_element);
3518 default:
3519 bfd_set_error (bfd_error_wrong_format);
3520 return FALSE;
3521 }
3522}
3523\f
3524/* A hash table used for header files with N_BINCL entries. */
3525
3526struct aout_link_includes_table
3527{
3528 struct bfd_hash_table root;
3529};
3530
3531/* A linked list of totals that we have found for a particular header
3532 file. */
3533
3534struct aout_link_includes_totals
3535{
3536 struct aout_link_includes_totals *next;
3537 bfd_vma total;
3538};
3539
3540/* An entry in the header file hash table. */
3541
3542struct aout_link_includes_entry
3543{
3544 struct bfd_hash_entry root;
3545 /* List of totals we have found for this file. */
3546 struct aout_link_includes_totals *totals;
3547};
3548
3549/* Look up an entry in an the header file hash table. */
3550
3551#define aout_link_includes_lookup(table, string, create, copy) \
3552 ((struct aout_link_includes_entry *) \
3553 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
3554
3555/* During the final link step we need to pass around a bunch of
3556 information, so we do it in an instance of this structure. */
3557
3558struct aout_final_link_info
3559{
3560 /* General link information. */
3561 struct bfd_link_info *info;
3562 /* Output bfd. */
252b5132
RH		 3563 bfd *output_bfd;
3564 /* Reloc file positions. */
3565 file_ptr treloff, dreloff;
3566 /* File position of symbols. */
3567 file_ptr symoff;
3568 /* String table. */
3569 struct bfd_strtab_hash *strtab;
3570 /* Header file hash table. */
3571 struct aout_link_includes_table includes;
3572 /* A buffer large enough to hold the contents of any section. */
3573 bfd_byte *contents;
3574 /* A buffer large enough to hold the relocs of any section. */
116c20d2 3575 void * relocs;
252b5132
RH		 3576 /* A buffer large enough to hold the symbol map of any input BFD. */
3577 int *symbol_map;
3578 /* A buffer large enough to hold output symbols of any input BFD. */
3579 struct external_nlist *output_syms;
3580};
3581
252b5132
RH		 3582/* The function to create a new entry in the header file hash table. */
3583
3584static struct bfd_hash_entry *
116c20d2
NC		 3585aout_link_includes_newfunc (struct bfd_hash_entry *entry,
3586 struct bfd_hash_table *table,
3587 const char *string)
252b5132
RH		 3588{
3589 struct aout_link_includes_entry *ret =
3590 (struct aout_link_includes_entry *) entry;
3591
3592 /* Allocate the structure if it has not already been allocated by a
3593 subclass. */
116c20d2 3594 if (ret == NULL)
a50b1753 3595 ret = (struct aout_link_includes_entry *)
07d6d2b8 3596 bfd_hash_allocate (table, sizeof (* ret));
116c20d2
NC		 3597 if (ret == NULL)
3598 return NULL;
252b5132
RH		 3599
3600 /* Call the allocation method of the superclass. */
3601 ret = ((struct aout_link_includes_entry *)
3602 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
3603 if (ret)
3604 {
3605 /* Set local fields. */
3606 ret->totals = NULL;
3607 }
3608
3609 return (struct bfd_hash_entry *) ret;
3610}
3611
116c20d2
NC		 3612/* Write out a symbol that was not associated with an a.out input
3613 object. */
252b5132 3614
116c20d2 3615static bfd_boolean
7686d77d 3616aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data)
252b5132 3617{
7686d77d 3618 struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh;
57402f1e 3619 struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data;
116c20d2
NC		 3620 bfd *output_bfd;
3621 int type;
3622 bfd_vma val;
3623 struct external_nlist outsym;
3624 bfd_size_type indx;
986f0783 3625 size_t amt;
252b5132 3626
116c20d2
NC		 3627 if (h->root.type == bfd_link_hash_warning)
3628 {
3629 h = (struct aout_link_hash_entry *) h->root.u.i.link;
3630 if (h->root.type == bfd_link_hash_new)
3631 return TRUE;
3632 }
252b5132 3633
57402f1e 3634 output_bfd = flaginfo->output_bfd;
252b5132 3635
116c20d2 3636 if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
252b5132 3637 {
116c20d2 3638 if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
57402f1e 3639 (output_bfd, flaginfo->info, h)))
252b5132 3640 {
116c20d2
NC		 3641 /* FIXME: No way to handle errors. */
3642 abort ();
252b5132 3643 }
116c20d2 3644 }
252b5132 3645
116c20d2
NC		 3646 if (h->written)
3647 return TRUE;
252b5132 3648
116c20d2 3649 h->written = TRUE;
252b5132 3650
116c20d2
NC		 3651 /* An indx of -2 means the symbol must be written. */
3652 if (h->indx != -2
57402f1e
NC		 3653 && (flaginfo->info->strip == strip_all
3654 || (flaginfo->info->strip == strip_some
3655 && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string,
116c20d2
NC		 3656 FALSE, FALSE) == NULL)))
3657 return TRUE;
252b5132 3658
116c20d2 3659 switch (h->root.type)
252b5132 3660 {
116c20d2
NC		 3661 default:
3662 case bfd_link_hash_warning:
3663 abort ();
3664 /* Avoid variable not initialized warnings. */
3665 return TRUE;
3666 case bfd_link_hash_new:
3667 /* This can happen for set symbols when sets are not being
07d6d2b8 3668 built. */
116c20d2
NC		 3669 return TRUE;
3670 case bfd_link_hash_undefined:
3671 type = N_UNDF | N_EXT;
3672 val = 0;
3673 break;
3674 case bfd_link_hash_defined:
3675 case bfd_link_hash_defweak:
3676 {
3677 asection *sec;
252b5132 3678
116c20d2
NC		 3679 sec = h->root.u.def.section->output_section;
3680 BFD_ASSERT (bfd_is_abs_section (sec)
3681 || sec->owner == output_bfd);
3682 if (sec == obj_textsec (output_bfd))
3683 type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
3684 else if (sec == obj_datasec (output_bfd))
3685 type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
3686 else if (sec == obj_bsssec (output_bfd))
3687 type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
3688 else
3689 type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
3690 type |= N_EXT;
3691 val = (h->root.u.def.value
3692 + sec->vma
3693 + h->root.u.def.section->output_offset);
3694 }
3695 break;
3696 case bfd_link_hash_common:
3697 type = N_UNDF | N_EXT;
3698 val = h->root.u.c.size;
3699 break;
3700 case bfd_link_hash_undefweak:
3701 type = N_WEAKU;
3702 val = 0;
c38eb2a6 3703 break;
116c20d2
NC		 3704 case bfd_link_hash_indirect:
3705 /* We ignore these symbols, since the indirected symbol is
3706 already in the hash table. */
3707 return TRUE;
3708 }
252b5132 3709
116c20d2
NC		 3710 H_PUT_8 (output_bfd, type, outsym.e_type);
3711 H_PUT_8 (output_bfd, 0, outsym.e_other);
3712 H_PUT_16 (output_bfd, 0, outsym.e_desc);
57402f1e 3713 indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string,
116c20d2
NC		 3714 FALSE);
3715 if (indx == - (bfd_size_type) 1)
3716 /* FIXME: No way to handle errors. */
3717 abort ();
252b5132 3718
116c20d2
NC		 3719 PUT_WORD (output_bfd, indx, outsym.e_strx);
3720 PUT_WORD (output_bfd, val, outsym.e_value);
252b5132 3721
116c20d2 3722 amt = EXTERNAL_NLIST_SIZE;
57402f1e 3723 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0
116c20d2
NC		 3724 || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt)
3725 /* FIXME: No way to handle errors. */
3726 abort ();
252b5132 3727
57402f1e 3728 flaginfo->symoff += EXTERNAL_NLIST_SIZE;
116c20d2
NC		 3729 h->indx = obj_aout_external_sym_count (output_bfd);
3730 ++obj_aout_external_sym_count (output_bfd);
252b5132 3731
116c20d2
NC		 3732 return TRUE;
3733}
252b5132 3734
116c20d2 3735/* Handle a link order which is supposed to generate a reloc. */
252b5132 3736
116c20d2 3737static bfd_boolean
57402f1e 3738aout_link_reloc_link_order (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3739 asection *o,
3740 struct bfd_link_order *p)
3741{
3742 struct bfd_link_order_reloc *pr;
3743 int r_index;
3744 int r_extern;
3745 reloc_howto_type *howto;
3746 file_ptr *reloff_ptr = NULL;
3747 struct reloc_std_external srel;
3748 struct reloc_ext_external erel;
3749 void * rel_ptr;
986f0783 3750 size_t amt;
252b5132 3751
116c20d2 3752 pr = p->u.reloc.p;
252b5132 3753
116c20d2
NC		 3754 if (p->type == bfd_section_reloc_link_order)
3755 {
3756 r_extern = 0;
3757 if (bfd_is_abs_section (pr->u.section))
3758 r_index = N_ABS | N_EXT;
3759 else
3760 {
57402f1e 3761 BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd);
116c20d2
NC		 3762 r_index = pr->u.section->target_index;
3763 }
3764 }
3765 else
3766 {
3767 struct aout_link_hash_entry *h;
252b5132 3768
116c20d2
NC		 3769 BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
3770 r_extern = 1;
3771 h = ((struct aout_link_hash_entry *)
57402f1e 3772 bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info,
116c20d2
NC		 3773 pr->u.name, FALSE, FALSE, TRUE));
3774 if (h != NULL
3775 && h->indx >= 0)
3776 r_index = h->indx;
3777 else if (h != NULL)
3778 {
3779 /* We decided to strip this symbol, but it turns out that we
3780 can't. Note that we lose the other and desc information
3781 here. I don't think that will ever matter for a global
3782 symbol. */
3783 h->indx = -2;
3784 h->written = FALSE;
57402f1e 3785 if (!aout_link_write_other_symbol (&h->root.root, flaginfo))
116c20d2
NC		 3786 return FALSE;
3787 r_index = h->indx;
3788 }
3789 else
3790 {
1a72702b
AM		 3791 (*flaginfo->info->callbacks->unattached_reloc)
3792 (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0);
116c20d2
NC		 3793 r_index = 0;
3794 }
3795 }
252b5132 3796
57402f1e 3797 howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc);
116c20d2 3798 if (howto == 0)
252b5132 3799 {
116c20d2
NC		 3800 bfd_set_error (bfd_error_bad_value);
3801 return FALSE;
252b5132
RH		 3802 }
3803
57402f1e
NC		 3804 if (o == obj_textsec (flaginfo->output_bfd))
3805 reloff_ptr = &flaginfo->treloff;
3806 else if (o == obj_datasec (flaginfo->output_bfd))
3807 reloff_ptr = &flaginfo->dreloff;
116c20d2
NC		 3808 else
3809 abort ();
3810
57402f1e 3811 if (obj_reloc_entry_size (flaginfo->output_bfd) == RELOC_STD_SIZE)
252b5132 3812 {
116c20d2 3813#ifdef MY_put_reloc
57402f1e 3814 MY_put_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset, howto,
116c20d2
NC		 3815 &srel);
3816#else
3817 {
3818 int r_pcrel;
3819 int r_baserel;
3820 int r_jmptable;
3821 int r_relative;
dfa85db1 3822 unsigned int r_length;
252b5132 3823
116c20d2
NC		 3824 r_pcrel = (int) howto->pc_relative;
3825 r_baserel = (howto->type & 8) != 0;
3826 r_jmptable = (howto->type & 16) != 0;
3827 r_relative = (howto->type & 32) != 0;
dfa85db1
GN		 3828 if (bfd_get_reloc_size (howto) != 8)
3829 r_length = howto->size; /* Size as a power of two. */
3830 else
3831 r_length = 3;
252b5132 3832
57402f1e
NC		 3833 PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address);
3834 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3835 {
3836 srel.r_index[0] = r_index >> 16;
3837 srel.r_index[1] = r_index >> 8;
3838 srel.r_index[2] = r_index;
3839 srel.r_type[0] =
3840 ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
3841 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
3842 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
3843 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
3844 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
3845 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
3846 }
3847 else
3848 {
3849 srel.r_index[2] = r_index >> 16;
3850 srel.r_index[1] = r_index >> 8;
3851 srel.r_index[0] = r_index;
3852 srel.r_type[0] =
3853 ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
3854 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
3855 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
3856 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
3857 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
3858 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
3859 }
3860 }
3861#endif
3862 rel_ptr = (void *) &srel;
252b5132 3863
116c20d2
NC		 3864 /* We have to write the addend into the object file, since
3865 standard a.out relocs are in place. It would be more
3866 reliable if we had the current contents of the file here,
3867 rather than assuming zeroes, but we can't read the file since
3868 it was opened using bfd_openw. */
3869 if (pr->addend != 0)
252b5132 3870 {
116c20d2
NC		 3871 bfd_size_type size;
3872 bfd_reloc_status_type r;
3873 bfd_byte *buf;
3874 bfd_boolean ok;
3875
3876 size = bfd_get_reloc_size (howto);
a50b1753 3877 buf = (bfd_byte *) bfd_zmalloc (size);
6346d5ca 3878 if (buf == NULL && size != 0)
116c20d2 3879 return FALSE;
57402f1e 3880 r = MY_relocate_contents (howto, flaginfo->output_bfd,
116c20d2
NC		 3881 (bfd_vma) pr->addend, buf);
3882 switch (r)
252b5132 3883 {
116c20d2
NC		 3884 case bfd_reloc_ok:
3885 break;
3886 default:
3887 case bfd_reloc_outofrange:
3888 abort ();
3889 case bfd_reloc_overflow:
1a72702b
AM		 3890 (*flaginfo->info->callbacks->reloc_overflow)
3891 (flaginfo->info, NULL,
3892 (p->type == bfd_section_reloc_link_order
fd361982 3893 ? bfd_section_name (pr->u.section)
1a72702b
AM		 3894 : pr->u.name),
3895 howto->name, pr->addend, NULL, NULL, (bfd_vma) 0);
116c20d2 3896 break;
252b5132 3897 }
57402f1e 3898 ok = bfd_set_section_contents (flaginfo->output_bfd, o, (void *) buf,
116c20d2
NC		 3899 (file_ptr) p->offset, size);
3900 free (buf);
3901 if (! ok)
3902 return FALSE;
252b5132
RH		 3903 }
3904 }
116c20d2 3905 else
252b5132 3906 {
116c20d2 3907#ifdef MY_put_ext_reloc
57402f1e 3908 MY_put_ext_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset,
116c20d2
NC		 3909 howto, &erel, pr->addend);
3910#else
57402f1e 3911 PUT_WORD (flaginfo->output_bfd, p->offset, erel.r_address);
252b5132 3912
57402f1e 3913 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3914 {
3915 erel.r_index[0] = r_index >> 16;
3916 erel.r_index[1] = r_index >> 8;
3917 erel.r_index[2] = r_index;
3918 erel.r_type[0] =
3919 ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
3920 | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG));
3921 }
3922 else
3923 {
3924 erel.r_index[2] = r_index >> 16;
3925 erel.r_index[1] = r_index >> 8;
3926 erel.r_index[0] = r_index;
3927 erel.r_type[0] =
3928 (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
3929 | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
3930 }
252b5132 3931
57402f1e 3932 PUT_WORD (flaginfo->output_bfd, (bfd_vma) pr->addend, erel.r_addend);
116c20d2 3933#endif /* MY_put_ext_reloc */
252b5132 3934
116c20d2 3935 rel_ptr = (void *) &erel;
252b5132 3936 }
252b5132 3937
57402f1e
NC		 3938 amt = obj_reloc_entry_size (flaginfo->output_bfd);
3939 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
3940 || bfd_bwrite (rel_ptr, amt, flaginfo->output_bfd) != amt)
116c20d2 3941 return FALSE;
252b5132 3942
57402f1e 3943 *reloff_ptr += obj_reloc_entry_size (flaginfo->output_bfd);
252b5132 3944
116c20d2
NC		 3945 /* Assert that the relocs have not run into the symbols, and that n
3946 the text relocs have not run into the data relocs. */
57402f1e
NC		 3947 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
3948 && (reloff_ptr != &flaginfo->treloff
116c20d2 3949 || (*reloff_ptr
57402f1e 3950 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 3951
3952 return TRUE;
252b5132
RH		 3953}
3954
116c20d2 3955/* Get the section corresponding to a reloc index. */
252b5132 3956
116c20d2
NC		 3957static INLINE asection *
3958aout_reloc_index_to_section (bfd *abfd, int indx)
252b5132 3959{
116c20d2 3960 switch (indx & N_TYPE)
252b5132 3961 {
116c20d2
NC		 3962 case N_TEXT: return obj_textsec (abfd);
3963 case N_DATA: return obj_datasec (abfd);
3964 case N_BSS: return obj_bsssec (abfd);
3965 case N_ABS:
3966 case N_UNDF: return bfd_abs_section_ptr;
3967 default: abort ();
252b5132 3968 }
116c20d2 3969 return NULL;
252b5132
RH		 3970}
3971
116c20d2 3972/* Relocate an a.out section using standard a.out relocs. */
252b5132 3973
b34976b6 3974static bfd_boolean
57402f1e 3975aout_link_input_section_std (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3976 bfd *input_bfd,
3977 asection *input_section,
3978 struct reloc_std_external *relocs,
3979 bfd_size_type rel_size,
3980 bfd_byte *contents)
252b5132 3981{
116c20d2
NC		 3982 bfd_boolean (*check_dynamic_reloc)
3983 (struct bfd_link_info *, bfd *, asection *,
3984 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
3985 bfd_vma *);
252b5132 3986 bfd *output_bfd;
116c20d2
NC		 3987 bfd_boolean relocatable;
3988 struct external_nlist *syms;
252b5132 3989 char *strings;
116c20d2 3990 struct aout_link_hash_entry **sym_hashes;
252b5132 3991 int *symbol_map;
116c20d2
NC		 3992 bfd_size_type reloc_count;
3993 struct reloc_std_external *rel;
3994 struct reloc_std_external *rel_end;
252b5132 3995
57402f1e 3996 output_bfd = flaginfo->output_bfd;
116c20d2 3997 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
252b5132 3998
116c20d2
NC		 3999 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE);
4000 BFD_ASSERT (input_bfd->xvec->header_byteorder
4001 == output_bfd->xvec->header_byteorder);
252b5132 4002
0e1862bb 4003 relocatable = bfd_link_relocatable (flaginfo->info);
116c20d2
NC		 4004 syms = obj_aout_external_syms (input_bfd);
4005 strings = obj_aout_external_strings (input_bfd);
4006 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4007 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4008
4009 reloc_count = rel_size / RELOC_STD_SIZE;
4010 rel = relocs;
4011 rel_end = rel + reloc_count;
4012 for (; rel < rel_end; rel++)
252b5132 4013 {
116c20d2
NC		 4014 bfd_vma r_addr;
4015 int r_index;
4016 int r_extern;
4017 int r_pcrel;
4018 int r_baserel = 0;
4019 reloc_howto_type *howto;
4020 struct aout_link_hash_entry *h = NULL;
4021 bfd_vma relocation;
4022 bfd_reloc_status_type r;
252b5132 4023
116c20d2 4024 r_addr = GET_SWORD (input_bfd, rel->r_address);
252b5132 4025
116c20d2
NC		 4026#ifdef MY_reloc_howto
4027 howto = MY_reloc_howto (input_bfd, rel, r_index, r_extern, r_pcrel);
4028#else
4029 {
4030 int r_jmptable;
4031 int r_relative;
4032 int r_length;
4033 unsigned int howto_idx;
252b5132 4034
116c20d2
NC		 4035 if (bfd_header_big_endian (input_bfd))
4036 {
4037 r_index = (((unsigned int) rel->r_index[0] << 16)
4038 | ((unsigned int) rel->r_index[1] << 8)
4039 | rel->r_index[2]);
4040 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
4041 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
4042 r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
4043 r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
4044 r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
4045 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
4046 >> RELOC_STD_BITS_LENGTH_SH_BIG);
4047 }
4048 else
4049 {
4050 r_index = (((unsigned int) rel->r_index[2] << 16)
4051 | ((unsigned int) rel->r_index[1] << 8)
4052 | rel->r_index[0]);
4053 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
4054 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
4055 r_baserel = (0 != (rel->r_type[0]
4056 & RELOC_STD_BITS_BASEREL_LITTLE));
4057 r_jmptable= (0 != (rel->r_type[0]
4058 & RELOC_STD_BITS_JMPTABLE_LITTLE));
4059 r_relative= (0 != (rel->r_type[0]
4060 & RELOC_STD_BITS_RELATIVE_LITTLE));
4061 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
4062 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
4063 }
252b5132 4064
116c20d2
NC		 4065 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
4066 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 4067 if (howto_idx < TABLE_SIZE (howto_table_std))
4068 howto = howto_table_std + howto_idx;
4069 else
4070 howto = NULL;
116c20d2
NC		 4071 }
4072#endif
252b5132 4073
ad756e3f
AM		 4074 if (howto == NULL)
4075 {
0aa13fee
AM		 4076 _bfd_error_handler (_("%pB: unsupported relocation type"),
4077 input_bfd);
ad756e3f
AM		 4078 bfd_set_error (bfd_error_bad_value);
4079 return FALSE;
4080 }
4081
116c20d2 4082 if (relocatable)
252b5132 4083 {
116c20d2
NC		 4084 /* We are generating a relocatable output file, and must
4085 modify the reloc accordingly. */
4086 if (r_extern)
252b5132 4087 {
116c20d2
NC		 4088 /* If we know the symbol this relocation is against,
4089 convert it into a relocation against a section. This
4090 is what the native linker does. */
4091 h = sym_hashes[r_index];
4092 if (h != NULL
4093 && (h->root.type == bfd_link_hash_defined
4094 || h->root.type == bfd_link_hash_defweak))
252b5132 4095 {
252b5132
RH		 4096 asection *output_section;
4097
116c20d2
NC		 4098 /* Change the r_extern value. */
4099 if (bfd_header_big_endian (output_bfd))
4100 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_BIG;
4101 else
4102 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE;
252b5132 4103
116c20d2
NC		 4104 /* Compute a new r_index. */
4105 output_section = h->root.u.def.section->output_section;
252b5132 4106 if (output_section == obj_textsec (output_bfd))
116c20d2 4107 r_index = N_TEXT;
252b5132 4108 else if (output_section == obj_datasec (output_bfd))
116c20d2 4109 r_index = N_DATA;
252b5132 4110 else if (output_section == obj_bsssec (output_bfd))
116c20d2 4111 r_index = N_BSS;
252b5132 4112 else
116c20d2 4113 r_index = N_ABS;
252b5132 4114
116c20d2
NC		 4115 /* Add the symbol value and the section VMA to the
4116 addend stored in the contents. */
4117 relocation = (h->root.u.def.value
4118 + output_section->vma
4119 + h->root.u.def.section->output_offset);
252b5132 4120 }
116c20d2 4121 else
252b5132 4122 {
116c20d2
NC		 4123 /* We must change r_index according to the symbol
4124 map. */
4125 r_index = symbol_map[r_index];
252b5132 4126
116c20d2 4127 if (r_index == -1)
252b5132 4128 {
116c20d2 4129 if (h != NULL)
252b5132 4130 {
116c20d2 4131 /* We decided to strip this symbol, but it
07d6d2b8
AM		 4132 turns out that we can't. Note that we
4133 lose the other and desc information here.
4134 I don't think that will ever matter for a
4135 global symbol. */
116c20d2 4136 if (h->indx < 0)
252b5132 4137 {
116c20d2
NC		 4138 h->indx = -2;
4139 h->written = FALSE;
7686d77d 4140 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4141 flaginfo))
116c20d2 4142 return FALSE;
252b5132 4143 }
116c20d2
NC		 4144 r_index = h->indx;
4145 }
4146 else
4147 {
4148 const char *name;
4149
4150 name = strings + GET_WORD (input_bfd,
4151 syms[r_index].e_strx);
1a72702b
AM		 4152 (*flaginfo->info->callbacks->unattached_reloc)
4153 (flaginfo->info, name,
4154 input_bfd, input_section, r_addr);
116c20d2 4155 r_index = 0;
252b5132
RH		 4156 }
4157 }
116c20d2
NC		 4158
4159 relocation = 0;
252b5132
RH		 4160 }
4161
116c20d2
NC		 4162 /* Write out the new r_index value. */
4163 if (bfd_header_big_endian (output_bfd))
252b5132 4164 {
116c20d2
NC		 4165 rel->r_index[0] = r_index >> 16;
4166 rel->r_index[1] = r_index >> 8;
4167 rel->r_index[2] = r_index;
252b5132
RH		 4168 }
4169 else
4170 {
116c20d2
NC		 4171 rel->r_index[2] = r_index >> 16;
4172 rel->r_index[1] = r_index >> 8;
4173 rel->r_index[0] = r_index;
252b5132
RH		 4174 }
4175 }
252b5132 4176 else
116c20d2
NC		 4177 {
4178 asection *section;
252b5132 4179
116c20d2
NC		 4180 /* This is a relocation against a section. We must
4181 adjust by the amount that the section moved. */
4182 section = aout_reloc_index_to_section (input_bfd, r_index);
4183 relocation = (section->output_section->vma
4184 + section->output_offset
4185 - section->vma);
4186 }
252b5132 4187
116c20d2
NC		 4188 /* Change the address of the relocation. */
4189 PUT_WORD (output_bfd,
4190 r_addr + input_section->output_offset,
4191 rel->r_address);
252b5132 4192
116c20d2
NC		 4193 /* Adjust a PC relative relocation by removing the reference
4194 to the original address in the section and including the
4195 reference to the new address. */
4196 if (r_pcrel)
4197 relocation -= (input_section->output_section->vma
4198 + input_section->output_offset
4199 - input_section->vma);
e92d460e 4200
116c20d2
NC		 4201#ifdef MY_relocatable_reloc
4202 MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
4203#endif
252b5132 4204
116c20d2
NC		 4205 if (relocation == 0)
4206 r = bfd_reloc_ok;
4207 else
4208 r = MY_relocate_contents (howto,
4209 input_bfd, relocation,
4210 contents + r_addr);
252b5132 4211 }
116c20d2
NC		 4212 else
4213 {
4214 bfd_boolean hundef;
252b5132 4215
116c20d2
NC		 4216 /* We are generating an executable, and must do a full
4217 relocation. */
4218 hundef = FALSE;
252b5132 4219
116c20d2
NC		 4220 if (r_extern)
4221 {
4222 h = sym_hashes[r_index];
252b5132 4223
116c20d2
NC		 4224 if (h != NULL
4225 && (h->root.type == bfd_link_hash_defined
4226 || h->root.type == bfd_link_hash_defweak))
4227 {
4228 relocation = (h->root.u.def.value
4229 + h->root.u.def.section->output_section->vma
4230 + h->root.u.def.section->output_offset);
4231 }
4232 else if (h != NULL
4233 && h->root.type == bfd_link_hash_undefweak)
4234 relocation = 0;
4235 else
4236 {
4237 hundef = TRUE;
4238 relocation = 0;
4239 }
4240 }
4241 else
4242 {
4243 asection *section;
252b5132 4244
116c20d2
NC		 4245 section = aout_reloc_index_to_section (input_bfd, r_index);
4246 relocation = (section->output_section->vma
4247 + section->output_offset
4248 - section->vma);
4249 if (r_pcrel)
4250 relocation += input_section->vma;
4251 }
252b5132 4252
116c20d2
NC		 4253 if (check_dynamic_reloc != NULL)
4254 {
4255 bfd_boolean skip;
252b5132 4256
116c20d2 4257 if (! ((*check_dynamic_reloc)
57402f1e 4258 (flaginfo->info, input_bfd, input_section, h,
116c20d2
NC		 4259 (void *) rel, contents, &skip, &relocation)))
4260 return FALSE;
4261 if (skip)
4262 continue;
4263 }
252b5132 4264
116c20d2 4265 /* Now warn if a global symbol is undefined. We could not
07d6d2b8
AM		 4266 do this earlier, because check_dynamic_reloc might want
4267 to skip this reloc. */
0e1862bb 4268 if (hundef && ! bfd_link_pic (flaginfo->info) && ! r_baserel)
116c20d2
NC		 4269 {
4270 const char *name;
252b5132 4271
116c20d2
NC		 4272 if (h != NULL)
4273 name = h->root.root.string;
4274 else
4275 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4276 (*flaginfo->info->callbacks->undefined_symbol)
4277 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
116c20d2 4278 }
252b5132 4279
116c20d2
NC		 4280 r = MY_final_link_relocate (howto,
4281 input_bfd, input_section,
4282 contents, r_addr, relocation,
4283 (bfd_vma) 0);
252b5132 4284 }
252b5132 4285
116c20d2
NC		 4286 if (r != bfd_reloc_ok)
4287 {
4288 switch (r)
4289 {
4290 default:
4291 case bfd_reloc_outofrange:
4292 abort ();
4293 case bfd_reloc_overflow:
4294 {
4295 const char *name;
252b5132 4296
116c20d2
NC		 4297 if (h != NULL)
4298 name = NULL;
4299 else if (r_extern)
4300 name = strings + GET_WORD (input_bfd,
4301 syms[r_index].e_strx);
4302 else
4303 {
4304 asection *s;
252b5132 4305
116c20d2 4306 s = aout_reloc_index_to_section (input_bfd, r_index);
fd361982 4307 name = bfd_section_name (s);
116c20d2 4308 }
1a72702b
AM		 4309 (*flaginfo->info->callbacks->reloc_overflow)
4310 (flaginfo->info, (h ? &h->root : NULL), name, howto->name,
4311 (bfd_vma) 0, input_bfd, input_section, r_addr);
116c20d2
NC		 4312 }
4313 break;
4314 }
4315 }
252b5132
RH		 4316 }
4317
b34976b6 4318 return TRUE;
252b5132
RH		 4319}
4320
116c20d2 4321/* Relocate an a.out section using extended a.out relocs. */
252b5132 4322
b34976b6 4323static bfd_boolean
57402f1e 4324aout_link_input_section_ext (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4325 bfd *input_bfd,
4326 asection *input_section,
4327 struct reloc_ext_external *relocs,
4328 bfd_size_type rel_size,
4329 bfd_byte *contents)
252b5132 4330{
b34976b6 4331 bfd_boolean (*check_dynamic_reloc)
116c20d2
NC		 4332 (struct bfd_link_info *, bfd *, asection *,
4333 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
4334 bfd_vma *);
252b5132 4335 bfd *output_bfd;
1049f94e 4336 bfd_boolean relocatable;
252b5132
RH		 4337 struct external_nlist *syms;
4338 char *strings;
4339 struct aout_link_hash_entry **sym_hashes;
4340 int *symbol_map;
4341 bfd_size_type reloc_count;
116c20d2
NC		 4342 struct reloc_ext_external *rel;
4343 struct reloc_ext_external *rel_end;
252b5132 4344
57402f1e 4345 output_bfd = flaginfo->output_bfd;
252b5132
RH		 4346 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
4347
116c20d2 4348 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_EXT_SIZE);
252b5132
RH		 4349 BFD_ASSERT (input_bfd->xvec->header_byteorder
4350 == output_bfd->xvec->header_byteorder);
4351
0e1862bb 4352 relocatable = bfd_link_relocatable (flaginfo->info);
252b5132
RH		 4353 syms = obj_aout_external_syms (input_bfd);
4354 strings = obj_aout_external_strings (input_bfd);
4355 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4356 symbol_map = flaginfo->symbol_map;
252b5132 4357
116c20d2 4358 reloc_count = rel_size / RELOC_EXT_SIZE;
252b5132
RH		 4359 rel = relocs;
4360 rel_end = rel + reloc_count;
4361 for (; rel < rel_end; rel++)
4362 {
4363 bfd_vma r_addr;
4364 int r_index;
4365 int r_extern;
116c20d2
NC		 4366 unsigned int r_type;
4367 bfd_vma r_addend;
252b5132 4368 struct aout_link_hash_entry *h = NULL;
116c20d2 4369 asection *r_section = NULL;
252b5132 4370 bfd_vma relocation;
252b5132
RH		 4371
4372 r_addr = GET_SWORD (input_bfd, rel->r_address);
4373
116c20d2
NC		 4374 if (bfd_header_big_endian (input_bfd))
4375 {
4376 r_index = (((unsigned int) rel->r_index[0] << 16)
4377 | ((unsigned int) rel->r_index[1] << 8)
4378 | rel->r_index[2]);
4379 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
4380 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
4381 >> RELOC_EXT_BITS_TYPE_SH_BIG);
4382 }
4383 else
4384 {
4385 r_index = (((unsigned int) rel->r_index[2] << 16)
4386 | ((unsigned int) rel->r_index[1] << 8)
4387 | rel->r_index[0]);
4388 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
4389 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
4390 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
4391 }
252b5132 4392
116c20d2 4393 r_addend = GET_SWORD (input_bfd, rel->r_addend);
252b5132 4394
ad756e3f
AM		 4395 if (r_type >= TABLE_SIZE (howto_table_ext))
4396 {
0aa13fee
AM		 4397 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4398 input_bfd, r_type);
ad756e3f
AM		 4399 bfd_set_error (bfd_error_bad_value);
4400 return FALSE;
4401 }
252b5132 4402
1049f94e 4403 if (relocatable)
252b5132 4404 {
1049f94e 4405 /* We are generating a relocatable output file, and must
252b5132 4406 modify the reloc accordingly. */
116c20d2
NC		 4407 if (r_extern
4408 || r_type == (unsigned int) RELOC_BASE10
4409 || r_type == (unsigned int) RELOC_BASE13
4410 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 4411 {
4412 /* If we know the symbol this relocation is against,
4413 convert it into a relocation against a section. This
4414 is what the native linker does. */
116c20d2
NC		 4415 if (r_type == (unsigned int) RELOC_BASE10
4416 || r_type == (unsigned int) RELOC_BASE13
4417 || r_type == (unsigned int) RELOC_BASE22)
4418 h = NULL;
4419 else
4420 h = sym_hashes[r_index];
4421 if (h != NULL
252b5132
RH		 4422 && (h->root.type == bfd_link_hash_defined
4423 || h->root.type == bfd_link_hash_defweak))
4424 {
4425 asection *output_section;
4426
4427 /* Change the r_extern value. */
4428 if (bfd_header_big_endian (output_bfd))
116c20d2 4429 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_BIG;
252b5132 4430 else
116c20d2 4431 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE;
252b5132
RH		 4432
4433 /* Compute a new r_index. */
4434 output_section = h->root.u.def.section->output_section;
4435 if (output_section == obj_textsec (output_bfd))
4436 r_index = N_TEXT;
4437 else if (output_section == obj_datasec (output_bfd))
4438 r_index = N_DATA;
4439 else if (output_section == obj_bsssec (output_bfd))
4440 r_index = N_BSS;
4441 else
4442 r_index = N_ABS;
4443
4444 /* Add the symbol value and the section VMA to the
116c20d2 4445 addend. */
252b5132
RH		 4446 relocation = (h->root.u.def.value
4447 + output_section->vma
4448 + h->root.u.def.section->output_offset);
116c20d2
NC		 4449
4450 /* Now RELOCATION is the VMA of the final
4451 destination. If this is a PC relative reloc,
4452 then ADDEND is the negative of the source VMA.
4453 We want to set ADDEND to the difference between
4454 the destination VMA and the source VMA, which
4455 means we must adjust RELOCATION by the change in
4456 the source VMA. This is done below. */
252b5132
RH		 4457 }
4458 else
4459 {
4460 /* We must change r_index according to the symbol
4461 map. */
4462 r_index = symbol_map[r_index];
4463
4464 if (r_index == -1)
4465 {
4466 if (h != NULL)
4467 {
4468 /* We decided to strip this symbol, but it
07d6d2b8
AM		 4469 turns out that we can't. Note that we
4470 lose the other and desc information here.
4471 I don't think that will ever matter for a
4472 global symbol. */
252b5132
RH		 4473 if (h->indx < 0)
4474 {
4475 h->indx = -2;
b34976b6 4476 h->written = FALSE;
7686d77d 4477 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4478 flaginfo))
b34976b6 4479 return FALSE;
252b5132
RH		 4480 }
4481 r_index = h->indx;
4482 }
4483 else
4484 {
4485 const char *name;
4486
4487 name = strings + GET_WORD (input_bfd,
4488 syms[r_index].e_strx);
1a72702b
AM		 4489 (*flaginfo->info->callbacks->unattached_reloc)
4490 (flaginfo->info, name,
4491 input_bfd, input_section, r_addr);
252b5132
RH		 4492 r_index = 0;
4493 }
4494 }
4495
4496 relocation = 0;
116c20d2
NC		 4497
4498 /* If this is a PC relative reloc, then the addend
4499 is the negative of the source VMA. We must
4500 adjust it by the change in the source VMA. This
4501 is done below. */
252b5132
RH		 4502 }
4503
4504 /* Write out the new r_index value. */
4505 if (bfd_header_big_endian (output_bfd))
4506 {
4507 rel->r_index[0] = r_index >> 16;
4508 rel->r_index[1] = r_index >> 8;
4509 rel->r_index[2] = r_index;
4510 }
4511 else
4512 {
4513 rel->r_index[2] = r_index >> 16;
4514 rel->r_index[1] = r_index >> 8;
4515 rel->r_index[0] = r_index;
4516 }
4517 }
4518 else
4519 {
252b5132
RH		 4520 /* This is a relocation against a section. We must
4521 adjust by the amount that the section moved. */
116c20d2
NC		 4522 r_section = aout_reloc_index_to_section (input_bfd, r_index);
4523 relocation = (r_section->output_section->vma
4524 + r_section->output_offset
4525 - r_section->vma);
252b5132 4526
116c20d2
NC		 4527 /* If this is a PC relative reloc, then the addend is
4528 the difference in VMA between the destination and the
4529 source. We have just adjusted for the change in VMA
4530 of the destination, so we must also adjust by the
4531 change in VMA of the source. This is done below. */
4532 }
252b5132 4533
116c20d2
NC		 4534 /* As described above, we must always adjust a PC relative
4535 reloc by the change in VMA of the source. However, if
4536 pcrel_offset is set, then the addend does not include the
4537 location within the section, in which case we don't need
4538 to adjust anything. */
4539 if (howto_table_ext[r_type].pc_relative
4540 && ! howto_table_ext[r_type].pcrel_offset)
252b5132
RH		 4541 relocation -= (input_section->output_section->vma
4542 + input_section->output_offset
4543 - input_section->vma);
4544
116c20d2
NC		 4545 /* Change the addend if necessary. */
4546 if (relocation != 0)
4547 PUT_WORD (output_bfd, r_addend + relocation, rel->r_addend);
252b5132 4548
116c20d2
NC		 4549 /* Change the address of the relocation. */
4550 PUT_WORD (output_bfd,
4551 r_addr + input_section->output_offset,
4552 rel->r_address);
252b5132
RH		 4553 }
4554 else
4555 {
b34976b6 4556 bfd_boolean hundef;
116c20d2 4557 bfd_reloc_status_type r;
252b5132
RH		 4558
4559 /* We are generating an executable, and must do a full
4560 relocation. */
b34976b6 4561 hundef = FALSE;
252b5132
RH		 4562
4563 if (r_extern)
4564 {
4565 h = sym_hashes[r_index];
4566
116c20d2 4567 if (h != NULL
252b5132
RH		 4568 && (h->root.type == bfd_link_hash_defined
4569 || h->root.type == bfd_link_hash_defweak))
4570 {
4571 relocation = (h->root.u.def.value
4572 + h->root.u.def.section->output_section->vma
4573 + h->root.u.def.section->output_offset);
4574 }
116c20d2 4575 else if (h != NULL
252b5132
RH		 4576 && h->root.type == bfd_link_hash_undefweak)
4577 relocation = 0;
4578 else
4579 {
b34976b6 4580 hundef = TRUE;
252b5132
RH		 4581 relocation = 0;
4582 }
4583 }
116c20d2
NC		 4584 else if (r_type == (unsigned int) RELOC_BASE10
4585 || r_type == (unsigned int) RELOC_BASE13
4586 || r_type == (unsigned int) RELOC_BASE22)
4587 {
4588 struct external_nlist *sym;
4589 int type;
4590
4591 /* For base relative relocs, r_index is always an index
07d6d2b8 4592 into the symbol table, even if r_extern is 0. */
116c20d2
NC		 4593 sym = syms + r_index;
4594 type = H_GET_8 (input_bfd, sym->e_type);
4595 if ((type & N_TYPE) == N_TEXT
4596 || type == N_WEAKT)
4597 r_section = obj_textsec (input_bfd);
4598 else if ((type & N_TYPE) == N_DATA
4599 || type == N_WEAKD)
4600 r_section = obj_datasec (input_bfd);
4601 else if ((type & N_TYPE) == N_BSS
4602 || type == N_WEAKB)
4603 r_section = obj_bsssec (input_bfd);
4604 else if ((type & N_TYPE) == N_ABS
4605 || type == N_WEAKA)
4606 r_section = bfd_abs_section_ptr;
4607 else
4608 abort ();
4609 relocation = (r_section->output_section->vma
4610 + r_section->output_offset
4611 + (GET_WORD (input_bfd, sym->e_value)
4612 - r_section->vma));
4613 }
252b5132
RH		 4614 else
4615 {
116c20d2 4616 r_section = aout_reloc_index_to_section (input_bfd, r_index);
252b5132 4617
116c20d2
NC		 4618 /* If this is a PC relative reloc, then R_ADDEND is the
4619 difference between the two vmas, or
4620 old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
4621 where
4622 old_dest_sec == section->vma
4623 and
4624 old_src_sec == input_section->vma
4625 and
4626 old_src_off == r_addr
4627
4628 _bfd_final_link_relocate expects RELOCATION +
4629 R_ADDEND to be the VMA of the destination minus
4630 r_addr (the minus r_addr is because this relocation
4631 is not pcrel_offset, which is a bit confusing and
4632 should, perhaps, be changed), or
4633 new_dest_sec
4634 where
4635 new_dest_sec == output_section->vma + output_offset
4636 We arrange for this to happen by setting RELOCATION to
4637 new_dest_sec + old_src_sec - old_dest_sec
4638
4639 If this is not a PC relative reloc, then R_ADDEND is
4640 simply the VMA of the destination, so we set
4641 RELOCATION to the change in the destination VMA, or
4642 new_dest_sec - old_dest_sec
4643 */
4644 relocation = (r_section->output_section->vma
4645 + r_section->output_offset
4646 - r_section->vma);
4647 if (howto_table_ext[r_type].pc_relative)
252b5132
RH		 4648 relocation += input_section->vma;
4649 }
4650
4651 if (check_dynamic_reloc != NULL)
4652 {
b34976b6 4653 bfd_boolean skip;
252b5132
RH		 4654
4655 if (! ((*check_dynamic_reloc)
57402f1e 4656 (flaginfo->info, input_bfd, input_section, h,
116c20d2 4657 (void *) rel, contents, &skip, &relocation)))
b34976b6 4658 return FALSE;
252b5132
RH		 4659 if (skip)
4660 continue;
4661 }
4662
4663 /* Now warn if a global symbol is undefined. We could not
07d6d2b8
AM		 4664 do this earlier, because check_dynamic_reloc might want
4665 to skip this reloc. */
116c20d2 4666 if (hundef
0e1862bb 4667 && ! bfd_link_pic (flaginfo->info)
116c20d2
NC		 4668 && r_type != (unsigned int) RELOC_BASE10
4669 && r_type != (unsigned int) RELOC_BASE13
4670 && r_type != (unsigned int) RELOC_BASE22)
252b5132
RH		 4671 {
4672 const char *name;
4673
4674 if (h != NULL)
4675 name = h->root.root.string;
4676 else
4677 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4678 (*flaginfo->info->callbacks->undefined_symbol)
4679 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
252b5132
RH		 4680 }
4681
116c20d2
NC		 4682 if (r_type != (unsigned int) RELOC_SPARC_REV32)
4683 r = MY_final_link_relocate (howto_table_ext + r_type,
4684 input_bfd, input_section,
4685 contents, r_addr, relocation,
4686 r_addend);
4687 else
252b5132 4688 {
116c20d2 4689 bfd_vma x;
252b5132 4690
116c20d2
NC		 4691 x = bfd_get_32 (input_bfd, contents + r_addr);
4692 x = x + relocation + r_addend;
4693 bfd_putl32 (/*input_bfd,*/ x, contents + r_addr);
4694 r = bfd_reloc_ok;
4695 }
4696
4697 if (r != bfd_reloc_ok)
4698 {
4699 switch (r)
4700 {
4701 default:
4702 case bfd_reloc_outofrange:
4703 abort ();
4704 case bfd_reloc_overflow:
252b5132 4705 {
116c20d2 4706 const char *name;
252b5132 4707
116c20d2
NC		 4708 if (h != NULL)
4709 name = NULL;
4710 else if (r_extern
4711 || r_type == (unsigned int) RELOC_BASE10
4712 || r_type == (unsigned int) RELOC_BASE13
4713 || r_type == (unsigned int) RELOC_BASE22)
4714 name = strings + GET_WORD (input_bfd,
4715 syms[r_index].e_strx);
4716 else
4717 {
4718 asection *s;
4719
4720 s = aout_reloc_index_to_section (input_bfd, r_index);
fd361982 4721 name = bfd_section_name (s);
116c20d2 4722 }
1a72702b
AM		 4723 (*flaginfo->info->callbacks->reloc_overflow)
4724 (flaginfo->info, (h ? &h->root : NULL), name,
4725 howto_table_ext[r_type].name,
4726 r_addend, input_bfd, input_section, r_addr);
252b5132 4727 }
116c20d2
NC		 4728 break;
4729 }
252b5132
RH		 4730 }
4731 }
4732 }
4733
b34976b6 4734 return TRUE;
252b5132
RH		 4735}
4736
116c20d2
NC		 4737/* Link an a.out section into the output file. */
4738
4739static bfd_boolean
57402f1e 4740aout_link_input_section (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4741 bfd *input_bfd,
4742 asection *input_section,
4743 file_ptr *reloff_ptr,
4744 bfd_size_type rel_size)
4745{
4746 bfd_size_type input_size;
4747 void * relocs;
4748
4749 /* Get the section contents. */
4750 input_size = input_section->size;
4751 if (! bfd_get_section_contents (input_bfd, input_section,
57402f1e 4752 (void *) flaginfo->contents,
116c20d2
NC		 4753 (file_ptr) 0, input_size))
4754 return FALSE;
4755
4756 /* Read in the relocs if we haven't already done it. */
4757 if (aout_section_data (input_section) != NULL
4758 && aout_section_data (input_section)->relocs != NULL)
4759 relocs = aout_section_data (input_section)->relocs;
4760 else
4761 {
57402f1e 4762 relocs = flaginfo->relocs;
116c20d2
NC		 4763 if (rel_size > 0)
4764 {
4765 if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
4766 || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
4767 return FALSE;
4768 }
4769 }
4770
4771 /* Relocate the section contents. */
4772 if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE)
4773 {
57402f1e 4774 if (! aout_link_input_section_std (flaginfo, input_bfd, input_section,
116c20d2 4775 (struct reloc_std_external *) relocs,
57402f1e 4776 rel_size, flaginfo->contents))
116c20d2
NC		 4777 return FALSE;
4778 }
4779 else
4780 {
57402f1e 4781 if (! aout_link_input_section_ext (flaginfo, input_bfd, input_section,
116c20d2 4782 (struct reloc_ext_external *) relocs,
57402f1e 4783 rel_size, flaginfo->contents))
116c20d2
NC		 4784 return FALSE;
4785 }
4786
4787 /* Write out the section contents. */
57402f1e 4788 if (! bfd_set_section_contents (flaginfo->output_bfd,
116c20d2 4789 input_section->output_section,
57402f1e 4790 (void *) flaginfo->contents,
116c20d2
NC		 4791 (file_ptr) input_section->output_offset,
4792 input_size))
4793 return FALSE;
4794
4795 /* If we are producing relocatable output, the relocs were
4796 modified, and we now write them out. */
0e1862bb 4797 if (bfd_link_relocatable (flaginfo->info) && rel_size > 0)
116c20d2 4798 {
57402f1e 4799 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
116c20d2 4800 return FALSE;
57402f1e 4801 if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size)
116c20d2
NC		 4802 return FALSE;
4803 *reloff_ptr += rel_size;
4804
4805 /* Assert that the relocs have not run into the symbols, and
4806 that if these are the text relocs they have not run into the
4807 data relocs. */
57402f1e
NC		 4808 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
4809 && (reloff_ptr != &flaginfo->treloff
116c20d2 4810 || (*reloff_ptr
57402f1e 4811 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 4812 }
4813
4814 return TRUE;
4815}
4816
4817/* Adjust and write out the symbols for an a.out file. Set the new
4818 symbol indices into a symbol_map. */
252b5132 4819
b34976b6 4820static bfd_boolean
57402f1e 4821aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd)
252b5132 4822{
252b5132 4823 bfd *output_bfd;
116c20d2 4824 bfd_size_type sym_count;
252b5132 4825 char *strings;
116c20d2
NC		 4826 enum bfd_link_strip strip;
4827 enum bfd_link_discard discard;
4828 struct external_nlist *outsym;
4829 bfd_size_type strtab_index;
4830 struct external_nlist *sym;
4831 struct external_nlist *sym_end;
4832 struct aout_link_hash_entry **sym_hash;
252b5132 4833 int *symbol_map;
116c20d2
NC		 4834 bfd_boolean pass;
4835 bfd_boolean skip_next;
252b5132 4836
57402f1e 4837 output_bfd = flaginfo->output_bfd;
116c20d2
NC		 4838 sym_count = obj_aout_external_sym_count (input_bfd);
4839 strings = obj_aout_external_strings (input_bfd);
57402f1e
NC		 4840 strip = flaginfo->info->strip;
4841 discard = flaginfo->info->discard;
4842 outsym = flaginfo->output_syms;
252b5132 4843
116c20d2
NC		 4844 /* First write out a symbol for this object file, unless we are
4845 discarding such symbols. */
4846 if (strip != strip_all
4847 && (strip != strip_some
765cf5f6
AM		 4848 || bfd_hash_lookup (flaginfo->info->keep_hash,
4849 bfd_get_filename (input_bfd),
116c20d2
NC		 4850 FALSE, FALSE) != NULL)
4851 && discard != discard_all)
4852 {
4853 H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
4854 H_PUT_8 (output_bfd, 0, outsym->e_other);
4855 H_PUT_16 (output_bfd, 0, outsym->e_desc);
57402f1e 4856 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
765cf5f6 4857 bfd_get_filename (input_bfd), FALSE);
116c20d2
NC		 4858 if (strtab_index == (bfd_size_type) -1)
4859 return FALSE;
4860 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
4861 PUT_WORD (output_bfd,
fd361982 4862 (bfd_section_vma (obj_textsec (input_bfd)->output_section)
116c20d2
NC		 4863 + obj_textsec (input_bfd)->output_offset),
4864 outsym->e_value);
4865 ++obj_aout_external_sym_count (output_bfd);
4866 ++outsym;
4867 }
252b5132 4868
116c20d2
NC		 4869 pass = FALSE;
4870 skip_next = FALSE;
4871 sym = obj_aout_external_syms (input_bfd);
4872 sym_end = sym + sym_count;
4873 sym_hash = obj_aout_sym_hashes (input_bfd);
57402f1e 4874 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4875 memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map);
4876 for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
252b5132 4877 {
116c20d2
NC		 4878 const char *name;
4879 int type;
4880 struct aout_link_hash_entry *h;
4881 bfd_boolean skip;
4882 asection *symsec;
4883 bfd_vma val = 0;
4884 bfd_boolean copy;
252b5132 4885
116c20d2 4886 /* We set *symbol_map to 0 above for all symbols. If it has
07d6d2b8
AM		 4887 already been set to -1 for this symbol, it means that we are
4888 discarding it because it appears in a duplicate header file.
4889 See the N_BINCL code below. */
116c20d2
NC		 4890 if (*symbol_map == -1)
4891 continue;
252b5132 4892
116c20d2 4893 /* Initialize *symbol_map to -1, which means that the symbol was
07d6d2b8
AM		 4894 not copied into the output file. We will change it later if
4895 we do copy the symbol over. */
116c20d2
NC		 4896 *symbol_map = -1;
4897
4898 type = H_GET_8 (input_bfd, sym->e_type);
4899 name = strings + GET_WORD (input_bfd, sym->e_strx);
4900
4901 h = NULL;
4902
4903 if (pass)
252b5132 4904 {
116c20d2
NC		 4905 /* Pass this symbol through. It is the target of an
4906 indirect or warning symbol. */
4907 val = GET_WORD (input_bfd, sym->e_value);
4908 pass = FALSE;
252b5132 4909 }
116c20d2 4910 else if (skip_next)
252b5132 4911 {
116c20d2
NC		 4912 /* Skip this symbol, which is the target of an indirect
4913 symbol that we have changed to no longer be an indirect
4914 symbol. */
4915 skip_next = FALSE;
4916 continue;
252b5132 4917 }
116c20d2
NC		 4918 else
4919 {
4920 struct aout_link_hash_entry *hresolve;
252b5132 4921
116c20d2
NC		 4922 /* We have saved the hash table entry for this symbol, if
4923 there is one. Note that we could just look it up again
4924 in the hash table, provided we first check that it is an
4925 external symbol. */
4926 h = *sym_hash;
252b5132 4927
116c20d2 4928 /* Use the name from the hash table, in case the symbol was
07d6d2b8 4929 wrapped. */
116c20d2
NC		 4930 if (h != NULL
4931 && h->root.type != bfd_link_hash_warning)
4932 name = h->root.root.string;
252b5132 4933
116c20d2
NC		 4934 /* If this is an indirect or warning symbol, then change
4935 hresolve to the base symbol. We also change *sym_hash so
4936 that the relocation routines relocate against the real
4937 symbol. */
4938 hresolve = h;
4939 if (h != (struct aout_link_hash_entry *) NULL
4940 && (h->root.type == bfd_link_hash_indirect
4941 || h->root.type == bfd_link_hash_warning))
252b5132 4942 {
116c20d2
NC		 4943 hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
4944 while (hresolve->root.type == bfd_link_hash_indirect
4945 || hresolve->root.type == bfd_link_hash_warning)
4946 hresolve = ((struct aout_link_hash_entry *)
4947 hresolve->root.u.i.link);
4948 *sym_hash = hresolve;
4949 }
4950
4951 /* If the symbol has already been written out, skip it. */
4952 if (h != NULL
4953 && h->written)
4954 {
4955 if ((type & N_TYPE) == N_INDR
4956 || type == N_WARNING)
4957 skip_next = TRUE;
4958 *symbol_map = h->indx;
4959 continue;
4960 }
4961
4962 /* See if we are stripping this symbol. */
4963 skip = FALSE;
4964 switch (strip)
4965 {
4966 case strip_none:
4967 break;
4968 case strip_debugger:
4969 if ((type & N_STAB) != 0)
4970 skip = TRUE;
4971 break;
4972 case strip_some:
57402f1e 4973 if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE)
116c20d2
NC		 4974 == NULL)
4975 skip = TRUE;
4976 break;
4977 case strip_all:
4978 skip = TRUE;
4979 break;
4980 }
4981 if (skip)
4982 {
4983 if (h != NULL)
4984 h->written = TRUE;
4985 continue;
4986 }
4987
4988 /* Get the value of the symbol. */
4989 if ((type & N_TYPE) == N_TEXT
4990 || type == N_WEAKT)
4991 symsec = obj_textsec (input_bfd);
4992 else if ((type & N_TYPE) == N_DATA
4993 || type == N_WEAKD)
4994 symsec = obj_datasec (input_bfd);
4995 else if ((type & N_TYPE) == N_BSS
4996 || type == N_WEAKB)
4997 symsec = obj_bsssec (input_bfd);
4998 else if ((type & N_TYPE) == N_ABS
4999 || type == N_WEAKA)
5000 symsec = bfd_abs_section_ptr;
5001 else if (((type & N_TYPE) == N_INDR
5002 && (hresolve == NULL
5003 || (hresolve->root.type != bfd_link_hash_defined
5004 && hresolve->root.type != bfd_link_hash_defweak
5005 && hresolve->root.type != bfd_link_hash_common)))
5006 || type == N_WARNING)
5007 {
5008 /* Pass the next symbol through unchanged. The
5009 condition above for indirect symbols is so that if
5010 the indirect symbol was defined, we output it with
5011 the correct definition so the debugger will
5012 understand it. */
5013 pass = TRUE;
5014 val = GET_WORD (input_bfd, sym->e_value);
5015 symsec = NULL;
5016 }
5017 else if ((type & N_STAB) != 0)
5018 {
5019 val = GET_WORD (input_bfd, sym->e_value);
5020 symsec = NULL;
5021 }
5022 else
5023 {
5024 /* If we get here with an indirect symbol, it means that
5025 we are outputting it with a real definition. In such
5026 a case we do not want to output the next symbol,
5027 which is the target of the indirection. */
5028 if ((type & N_TYPE) == N_INDR)
5029 skip_next = TRUE;
5030
5031 symsec = NULL;
5032
5033 /* We need to get the value from the hash table. We use
5034 hresolve so that if we have defined an indirect
5035 symbol we output the final definition. */
5036 if (h == NULL)
5037 {
5038 switch (type & N_TYPE)
5039 {
5040 case N_SETT:
5041 symsec = obj_textsec (input_bfd);
5042 break;
5043 case N_SETD:
5044 symsec = obj_datasec (input_bfd);
5045 break;
5046 case N_SETB:
5047 symsec = obj_bsssec (input_bfd);
5048 break;
5049 case N_SETA:
5050 symsec = bfd_abs_section_ptr;
5051 break;
5052 default:
5053 val = 0;
5054 break;
5055 }
5056 }
5057 else if (hresolve->root.type == bfd_link_hash_defined
5058 || hresolve->root.type == bfd_link_hash_defweak)
252b5132 5059 {
116c20d2 5060 asection *input_section;
252b5132
RH		 5061 asection *output_section;
5062
116c20d2
NC		 5063 /* This case usually means a common symbol which was
5064 turned into a defined symbol. */
5065 input_section = hresolve->root.u.def.section;
5066 output_section = input_section->output_section;
5067 BFD_ASSERT (bfd_is_abs_section (output_section)
5068 || output_section->owner == output_bfd);
5069 val = (hresolve->root.u.def.value
fd361982 5070 + bfd_section_vma (output_section)
116c20d2
NC		 5071 + input_section->output_offset);
5072
5073 /* Get the correct type based on the section. If
5074 this is a constructed set, force it to be
5075 globally visible. */
5076 if (type == N_SETT
5077 || type == N_SETD
5078 || type == N_SETB
5079 || type == N_SETA)
5080 type |= N_EXT;
5081
5082 type &=~ N_TYPE;
252b5132 5083
252b5132 5084 if (output_section == obj_textsec (output_bfd))
116c20d2
NC		 5085 type |= (hresolve->root.type == bfd_link_hash_defined
5086 ? N_TEXT
5087 : N_WEAKT);
252b5132 5088 else if (output_section == obj_datasec (output_bfd))
116c20d2
NC		 5089 type |= (hresolve->root.type == bfd_link_hash_defined
5090 ? N_DATA
5091 : N_WEAKD);
252b5132 5092 else if (output_section == obj_bsssec (output_bfd))
116c20d2
NC		 5093 type |= (hresolve->root.type == bfd_link_hash_defined
5094 ? N_BSS
5095 : N_WEAKB);
252b5132 5096 else
116c20d2
NC		 5097 type |= (hresolve->root.type == bfd_link_hash_defined
5098 ? N_ABS
5099 : N_WEAKA);
5100 }
5101 else if (hresolve->root.type == bfd_link_hash_common)
5102 val = hresolve->root.u.c.size;
5103 else if (hresolve->root.type == bfd_link_hash_undefweak)
5104 {
5105 val = 0;
5106 type = N_WEAKU;
252b5132
RH		 5107 }
5108 else
116c20d2
NC		 5109 val = 0;
5110 }
5111 if (symsec != NULL)
5112 val = (symsec->output_section->vma
5113 + symsec->output_offset
5114 + (GET_WORD (input_bfd, sym->e_value)
5115 - symsec->vma));
5116
5117 /* If this is a global symbol set the written flag, and if
5118 it is a local symbol see if we should discard it. */
5119 if (h != NULL)
5120 {
5121 h->written = TRUE;
5122 h->indx = obj_aout_external_sym_count (output_bfd);
5123 }
5124 else if ((type & N_TYPE) != N_SETT
5125 && (type & N_TYPE) != N_SETD
5126 && (type & N_TYPE) != N_SETB
5127 && (type & N_TYPE) != N_SETA)
5128 {
5129 switch (discard)
252b5132 5130 {
116c20d2
NC		 5131 case discard_none:
5132 case discard_sec_merge:
5133 break;
5134 case discard_l:
5135 if ((type & N_STAB) == 0
5136 && bfd_is_local_label_name (input_bfd, name))
5137 skip = TRUE;
5138 break;
5139 case discard_all:
5140 skip = TRUE;
5141 break;
5142 }
5143 if (skip)
5144 {
5145 pass = FALSE;
5146 continue;
5147 }
5148 }
252b5132 5149
116c20d2
NC		 5150 /* An N_BINCL symbol indicates the start of the stabs
5151 entries for a header file. We need to scan ahead to the
5152 next N_EINCL symbol, ignoring nesting, adding up all the
5153 characters in the symbol names, not including the file
5154 numbers in types (the first number after an open
5155 parenthesis). */
5156 if (type == (int) N_BINCL)
5157 {
5158 struct external_nlist *incl_sym;
5159 int nest;
5160 struct aout_link_includes_entry *incl_entry;
5161 struct aout_link_includes_totals *t;
5162
5163 val = 0;
5164 nest = 0;
5165 for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
5166 {
5167 int incl_type;
5168
5169 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5170 if (incl_type == (int) N_EINCL)
252b5132 5171 {
116c20d2
NC		 5172 if (nest == 0)
5173 break;
5174 --nest;
5175 }
5176 else if (incl_type == (int) N_BINCL)
5177 ++nest;
5178 else if (nest == 0)
5179 {
5180 const char *s;
5181
5182 s = strings + GET_WORD (input_bfd, incl_sym->e_strx);
5183 for (; *s != '\0'; s++)
252b5132 5184 {
116c20d2
NC		 5185 val += *s;
5186 if (*s == '(')
252b5132 5187 {
116c20d2
NC		 5188 /* Skip the file number. */
5189 ++s;
5190 while (ISDIGIT (*s))
5191 ++s;
5192 --s;
252b5132 5193 }
252b5132 5194 }
116c20d2
NC		 5195 }
5196 }
252b5132 5197
116c20d2 5198 /* If we have already included a header file with the
07d6d2b8
AM		 5199 same value, then replace this one with an N_EXCL
5200 symbol. */
57402f1e
NC		 5201 copy = (bfd_boolean) (! flaginfo->info->keep_memory);
5202 incl_entry = aout_link_includes_lookup (&flaginfo->includes,
116c20d2
NC		 5203 name, TRUE, copy);
5204 if (incl_entry == NULL)
5205 return FALSE;
5206 for (t = incl_entry->totals; t != NULL; t = t->next)
5207 if (t->total == val)
5208 break;
5209 if (t == NULL)
5210 {
5211 /* This is the first time we have seen this header
07d6d2b8 5212 file with this set of stabs strings. */
a50b1753 5213 t = (struct aout_link_includes_totals *)
07d6d2b8 5214 bfd_hash_allocate (&flaginfo->includes.root,
116c20d2
NC		 5215 sizeof *t);
5216 if (t == NULL)
5217 return FALSE;
5218 t->total = val;
5219 t->next = incl_entry->totals;
5220 incl_entry->totals = t;
5221 }
5222 else
5223 {
5224 int *incl_map;
5225
5226 /* This is a duplicate header file. We must change
07d6d2b8
AM		 5227 it to be an N_EXCL entry, and mark all the
5228 included symbols to prevent outputting them. */
116c20d2
NC		 5229 type = (int) N_EXCL;
5230
5231 nest = 0;
5232 for (incl_sym = sym + 1, incl_map = symbol_map + 1;
5233 incl_sym < sym_end;
5234 incl_sym++, incl_map++)
5235 {
5236 int incl_type;
5237
5238 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5239 if (incl_type == (int) N_EINCL)
5240 {
5241 if (nest == 0)
5242 {
5243 *incl_map = -1;
5244 break;
5245 }
5246 --nest;
252b5132 5247 }
116c20d2
NC		 5248 else if (incl_type == (int) N_BINCL)
5249 ++nest;
5250 else if (nest == 0)
5251 *incl_map = -1;
252b5132 5252 }
252b5132
RH		 5253 }
5254 }
116c20d2
NC		 5255 }
5256
5257 /* Copy this symbol into the list of symbols we are going to
5258 write out. */
5259 H_PUT_8 (output_bfd, type, outsym->e_type);
5260 H_PUT_8 (output_bfd, H_GET_8 (input_bfd, sym->e_other), outsym->e_other);
5261 H_PUT_16 (output_bfd, H_GET_16 (input_bfd, sym->e_desc), outsym->e_desc);
5262 copy = FALSE;
57402f1e 5263 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5264 {
5265 /* name points into a string table which we are going to
5266 free. If there is a hash table entry, use that string.
5267 Otherwise, copy name into memory. */
5268 if (h != NULL)
5269 name = h->root.root.string;
252b5132 5270 else
116c20d2
NC		 5271 copy = TRUE;
5272 }
57402f1e 5273 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 5274 name, copy);
5275 if (strtab_index == (bfd_size_type) -1)
5276 return FALSE;
5277 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
5278 PUT_WORD (output_bfd, val, outsym->e_value);
5279 *symbol_map = obj_aout_external_sym_count (output_bfd);
5280 ++obj_aout_external_sym_count (output_bfd);
5281 ++outsym;
5282 }
252b5132 5283
116c20d2 5284 /* Write out the output symbols we have just constructed. */
57402f1e 5285 if (outsym > flaginfo->output_syms)
116c20d2
NC		 5286 {
5287 bfd_size_type outsym_size;
252b5132 5288
57402f1e 5289 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0)
116c20d2 5290 return FALSE;
57402f1e 5291 outsym_size = outsym - flaginfo->output_syms;
116c20d2 5292 outsym_size *= EXTERNAL_NLIST_SIZE;
57402f1e 5293 if (bfd_bwrite ((void *) flaginfo->output_syms, outsym_size, output_bfd)
116c20d2
NC		 5294 != outsym_size)
5295 return FALSE;
57402f1e 5296 flaginfo->symoff += outsym_size;
116c20d2 5297 }
252b5132 5298
116c20d2
NC		 5299 return TRUE;
5300}
252b5132 5301
116c20d2 5302/* Link an a.out input BFD into the output file. */
252b5132 5303
116c20d2 5304static bfd_boolean
57402f1e 5305aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd)
116c20d2 5306{
116c20d2 5307 BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
252b5132 5308
116c20d2
NC		 5309 /* If this is a dynamic object, it may need special handling. */
5310 if ((input_bfd->flags & DYNAMIC) != 0
5311 && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
5312 return ((*aout_backend_info (input_bfd)->link_dynamic_object)
57402f1e 5313 (flaginfo->info, input_bfd));
252b5132 5314
116c20d2 5315 /* Get the symbols. We probably have them already, unless
57402f1e 5316 flaginfo->info->keep_memory is FALSE. */
116c20d2
NC		 5317 if (! aout_get_external_symbols (input_bfd))
5318 return FALSE;
252b5132 5319
116c20d2 5320 /* Write out the symbols and get a map of the new indices. The map
57402f1e
NC		 5321 is placed into flaginfo->symbol_map. */
5322 if (! aout_link_write_symbols (flaginfo, input_bfd))
116c20d2 5323 return FALSE;
252b5132 5324
116c20d2
NC		 5325 /* Relocate and write out the sections. These functions use the
5326 symbol map created by aout_link_write_symbols. The linker_mark
5327 field will be set if these sections are to be included in the
5328 link, which will normally be the case. */
5329 if (obj_textsec (input_bfd)->linker_mark)
5330 {
57402f1e 5331 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5332 obj_textsec (input_bfd),
57402f1e 5333 &flaginfo->treloff,
116c20d2
NC		 5334 exec_hdr (input_bfd)->a_trsize))
5335 return FALSE;
5336 }
5337 if (obj_datasec (input_bfd)->linker_mark)
5338 {
57402f1e 5339 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5340 obj_datasec (input_bfd),
57402f1e 5341 &flaginfo->dreloff,
116c20d2
NC		 5342 exec_hdr (input_bfd)->a_drsize))
5343 return FALSE;
5344 }
5345
5346 /* If we are not keeping memory, we don't need the symbols any
5347 longer. We still need them if we are keeping memory, because the
5348 strings in the hash table point into them. */
57402f1e 5349 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5350 {
5351 if (! aout_link_free_symbols (input_bfd))
5352 return FALSE;
5353 }
5354
5355 return TRUE;
5356}
5357
5358/* Do the final link step. This is called on the output BFD. The
5359 INFO structure should point to a list of BFDs linked through the
c72f2fb2 5360 link.next field which can be used to find each BFD which takes part
116c20d2
NC		 5361 in the output. Also, each section in ABFD should point to a list
5362 of bfd_link_order structures which list all the input sections for
5363 the output section. */
5364
5365bfd_boolean
5366NAME (aout, final_link) (bfd *abfd,
5367 struct bfd_link_info *info,
5368 void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *))
5369{
5370 struct aout_final_link_info aout_info;
5371 bfd_boolean includes_hash_initialized = FALSE;
5372 bfd *sub;
5373 bfd_size_type trsize, drsize;
5374 bfd_size_type max_contents_size;
5375 bfd_size_type max_relocs_size;
5376 bfd_size_type max_sym_count;
116c20d2
NC		 5377 struct bfd_link_order *p;
5378 asection *o;
5379 bfd_boolean have_link_order_relocs;
5380
0e1862bb 5381 if (bfd_link_pic (info))
116c20d2
NC		 5382 abfd->flags |= DYNAMIC;
5383
5384 aout_info.info = info;
5385 aout_info.output_bfd = abfd;
5386 aout_info.contents = NULL;
5387 aout_info.relocs = NULL;
5388 aout_info.symbol_map = NULL;
5389 aout_info.output_syms = NULL;
252b5132 5390
66eb6687
AM		 5391 if (!bfd_hash_table_init_n (&aout_info.includes.root,
5392 aout_link_includes_newfunc,
5393 sizeof (struct aout_link_includes_entry),
5394 251))
116c20d2
NC		 5395 goto error_return;
5396 includes_hash_initialized = TRUE;
252b5132 5397
116c20d2
NC		 5398 /* Figure out the largest section size. Also, if generating
5399 relocatable output, count the relocs. */
5400 trsize = 0;
5401 drsize = 0;
5402 max_contents_size = 0;
5403 max_relocs_size = 0;
5404 max_sym_count = 0;
c72f2fb2 5405 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2
NC		 5406 {
5407 bfd_size_type sz;
252b5132 5408
0e1862bb 5409 if (bfd_link_relocatable (info))
116c20d2
NC		 5410 {
5411 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
252b5132 5412 {
116c20d2
NC		 5413 trsize += exec_hdr (sub)->a_trsize;
5414 drsize += exec_hdr (sub)->a_drsize;
252b5132 5415 }
252b5132
RH		 5416 else
5417 {
116c20d2
NC		 5418 /* FIXME: We need to identify the .text and .data sections
5419 and call get_reloc_upper_bound and canonicalize_reloc to
5420 work out the number of relocs needed, and then multiply
5421 by the reloc size. */
4eca0228 5422 _bfd_error_handler
695344c0 5423 /* xgettext:c-format */
871b3ab2 5424 (_("%pB: relocatable link from %s to %s not supported"),
dae82561 5425 abfd, sub->xvec->name, abfd->xvec->name);
116c20d2
NC		 5426 bfd_set_error (bfd_error_invalid_operation);
5427 goto error_return;
252b5132 5428 }
116c20d2 5429 }
252b5132 5430
116c20d2
NC		 5431 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
5432 {
5433 sz = obj_textsec (sub)->size;
5434 if (sz > max_contents_size)
5435 max_contents_size = sz;
5436 sz = obj_datasec (sub)->size;
5437 if (sz > max_contents_size)
5438 max_contents_size = sz;
252b5132 5439
116c20d2
NC		 5440 sz = exec_hdr (sub)->a_trsize;
5441 if (sz > max_relocs_size)
5442 max_relocs_size = sz;
5443 sz = exec_hdr (sub)->a_drsize;
5444 if (sz > max_relocs_size)
5445 max_relocs_size = sz;
252b5132 5446
116c20d2
NC		 5447 sz = obj_aout_external_sym_count (sub);
5448 if (sz > max_sym_count)
5449 max_sym_count = sz;
252b5132
RH		 5450 }
5451 }
5452
0e1862bb 5453 if (bfd_link_relocatable (info))
116c20d2
NC		 5454 {
5455 if (obj_textsec (abfd) != NULL)
5456 trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
8423293d 5457 ->map_head.link_order)
116c20d2
NC		 5458 * obj_reloc_entry_size (abfd));
5459 if (obj_datasec (abfd) != NULL)
5460 drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
8423293d 5461 ->map_head.link_order)
116c20d2
NC		 5462 * obj_reloc_entry_size (abfd));
5463 }
252b5132 5464
116c20d2
NC		 5465 exec_hdr (abfd)->a_trsize = trsize;
5466 exec_hdr (abfd)->a_drsize = drsize;
252b5132 5467
116c20d2 5468 exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
252b5132 5469
116c20d2
NC		 5470 /* Adjust the section sizes and vmas according to the magic number.
5471 This sets a_text, a_data and a_bss in the exec_hdr and sets the
5472 filepos for each section. */
3a8c4a5b 5473 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
116c20d2 5474 goto error_return;
252b5132 5475
116c20d2
NC		 5476 /* The relocation and symbol file positions differ among a.out
5477 targets. We are passed a callback routine from the backend
5478 specific code to handle this.
5479 FIXME: At this point we do not know how much space the symbol
5480 table will require. This will not work for any (nonstandard)
5481 a.out target that needs to know the symbol table size before it
dc12032b 5482 can compute the relocation file positions. */
116c20d2
NC		 5483 (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
5484 &aout_info.symoff);
5485 obj_textsec (abfd)->rel_filepos = aout_info.treloff;
5486 obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
5487 obj_sym_filepos (abfd) = aout_info.symoff;
252b5132 5488
116c20d2
NC		 5489 /* We keep a count of the symbols as we output them. */
5490 obj_aout_external_sym_count (abfd) = 0;
5491
5492 /* We accumulate the string table as we write out the symbols. */
5493 aout_info.strtab = _bfd_stringtab_init ();
5494 if (aout_info.strtab == NULL)
5495 goto error_return;
5496
5497 /* Allocate buffers to hold section contents and relocs. */
a50b1753 5498 aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
116c20d2 5499 aout_info.relocs = bfd_malloc (max_relocs_size);
c38eb2a6 5500 aout_info.symbol_map = (int *) bfd_malloc (max_sym_count * sizeof (int));
a50b1753
NC		 5501 aout_info.output_syms = (struct external_nlist *)
5502 bfd_malloc ((max_sym_count + 1) * sizeof (struct external_nlist));
116c20d2
NC		 5503 if ((aout_info.contents == NULL && max_contents_size != 0)
5504 || (aout_info.relocs == NULL && max_relocs_size != 0)
5505 || (aout_info.symbol_map == NULL && max_sym_count != 0)
5506 || aout_info.output_syms == NULL)
5507 goto error_return;
5508
5509 /* If we have a symbol named __DYNAMIC, force it out now. This is
5510 required by SunOS. Doing this here rather than in sunos.c is a
5511 hack, but it's easier than exporting everything which would be
5512 needed. */
5513 {
5514 struct aout_link_hash_entry *h;
5515
5516 h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
5517 FALSE, FALSE, FALSE);
5518 if (h != NULL)
7686d77d 5519 aout_link_write_other_symbol (&h->root.root, &aout_info);
116c20d2
NC		 5520 }
5521
5522 /* The most time efficient way to do the link would be to read all
5523 the input object files into memory and then sort out the
5524 information into the output file. Unfortunately, that will
5525 probably use too much memory. Another method would be to step
5526 through everything that composes the text section and write it
5527 out, and then everything that composes the data section and write
5528 it out, and then write out the relocs, and then write out the
5529 symbols. Unfortunately, that requires reading stuff from each
5530 input file several times, and we will not be able to keep all the
5531 input files open simultaneously, and reopening them will be slow.
5532
5533 What we do is basically process one input file at a time. We do
5534 everything we need to do with an input file once--copy over the
5535 section contents, handle the relocation information, and write
5536 out the symbols--and then we throw away the information we read
5537 from it. This approach requires a lot of lseeks of the output
5538 file, which is unfortunate but still faster than reopening a lot
5539 of files.
5540
5541 We use the output_has_begun field of the input BFDs to see
5542 whether we have already handled it. */
c72f2fb2 5543 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2 5544 sub->output_has_begun = FALSE;
252b5132 5545
116c20d2
NC		 5546 /* Mark all sections which are to be included in the link. This
5547 will normally be every section. We need to do this so that we
5548 can identify any sections which the linker has decided to not
5549 include. */
5550 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5551 {
8423293d 5552 for (p = o->map_head.link_order; p != NULL; p = p->next)
116c20d2
NC		 5553 if (p->type == bfd_indirect_link_order)
5554 p->u.indirect.section->linker_mark = TRUE;
252b5132
RH		 5555 }
5556
116c20d2
NC		 5557 have_link_order_relocs = FALSE;
5558 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5559 {
8423293d 5560 for (p = o->map_head.link_order;
116c20d2
NC		 5561 p != NULL;
5562 p = p->next)
252b5132 5563 {
116c20d2
NC		 5564 if (p->type == bfd_indirect_link_order
5565 && (bfd_get_flavour (p->u.indirect.section->owner)
5566 == bfd_target_aout_flavour))
252b5132 5567 {
116c20d2
NC		 5568 bfd *input_bfd;
5569
5570 input_bfd = p->u.indirect.section->owner;
5571 if (! input_bfd->output_has_begun)
252b5132 5572 {
116c20d2
NC		 5573 if (! aout_link_input_bfd (&aout_info, input_bfd))
5574 goto error_return;
5575 input_bfd->output_has_begun = TRUE;
252b5132 5576 }
252b5132 5577 }
116c20d2
NC		 5578 else if (p->type == bfd_section_reloc_link_order
5579 || p->type == bfd_symbol_reloc_link_order)
5580 {
5581 /* These are handled below. */
5582 have_link_order_relocs = TRUE;
5583 }
5584 else
5585 {
5586 if (! _bfd_default_link_order (abfd, info, o, p))
5587 goto error_return;
5588 }
252b5132
RH		 5589 }
5590 }
252b5132 5591
116c20d2 5592 /* Write out any symbols that we have not already written out. */
7686d77d
AM		 5593 bfd_hash_traverse (&info->hash->table,
5594 aout_link_write_other_symbol,
5595 &aout_info);
116c20d2
NC		 5596
5597 /* Now handle any relocs we were asked to create by the linker.
5598 These did not come from any input file. We must do these after
5599 we have written out all the symbols, so that we know the symbol
5600 indices to use. */
5601 if (have_link_order_relocs)
5602 {
5603 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5604 {
8423293d 5605 for (p = o->map_head.link_order;
116c20d2
NC		 5606 p != NULL;
5607 p = p->next)
5608 {
5609 if (p->type == bfd_section_reloc_link_order
5610 || p->type == bfd_symbol_reloc_link_order)
5611 {
5612 if (! aout_link_reloc_link_order (&aout_info, o, p))
5613 goto error_return;
5614 }
5615 }
252b5132 5616 }
116c20d2 5617 }
252b5132 5618
c9594989
AM		 5619 free (aout_info.contents);
5620 aout_info.contents = NULL;
5621 free (aout_info.relocs);
5622 aout_info.relocs = NULL;
5623 free (aout_info.symbol_map);
5624 aout_info.symbol_map = NULL;
5625 free (aout_info.output_syms);
5626 aout_info.output_syms = NULL;
5627
116c20d2
NC		 5628 if (includes_hash_initialized)
5629 {
5630 bfd_hash_table_free (&aout_info.includes.root);
5631 includes_hash_initialized = FALSE;
5632 }
252b5132 5633
116c20d2
NC		 5634 /* Finish up any dynamic linking we may be doing. */
5635 if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
5636 {
5637 if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
5638 goto error_return;
252b5132
RH		 5639 }
5640
116c20d2
NC		 5641 /* Update the header information. */
5642 abfd->symcount = obj_aout_external_sym_count (abfd);
5643 exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
5644 obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
5645 obj_textsec (abfd)->reloc_count =
5646 exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
5647 obj_datasec (abfd)->reloc_count =
5648 exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
252b5132 5649
116c20d2 5650 /* Write out the string table, unless there are no symbols. */
f6e688f7
AM		 5651 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0)
5652 goto error_return;
116c20d2
NC		 5653 if (abfd->symcount > 0)
5654 {
f6e688f7 5655 if (!emit_stringtab (abfd, aout_info.strtab))
116c20d2
NC		 5656 goto error_return;
5657 }
f6e688f7 5658 else
116c20d2 5659 {
f6e688f7 5660 bfd_byte b[BYTES_IN_WORD];
252b5132 5661
f6e688f7
AM		 5662 memset (b, 0, BYTES_IN_WORD);
5663 if (bfd_bwrite (b, (bfd_size_type) BYTES_IN_WORD, abfd) != BYTES_IN_WORD)
116c20d2
NC		 5664 goto error_return;
5665 }
252b5132 5666
b34976b6 5667 return TRUE;
116c20d2
NC		 5668
5669 error_return:
c9594989
AM		 5670 free (aout_info.contents);
5671 free (aout_info.relocs);
5672 free (aout_info.symbol_map);
5673 free (aout_info.output_syms);
116c20d2
NC		 5674 if (includes_hash_initialized)
5675 bfd_hash_table_free (&aout_info.includes.root);
5676 return FALSE;
252b5132 5677}
GDB Binutils - Deliverables
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