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PowerPC, use size_t rather than long for indices
[deliverable/binutils-gdb.git] / bfd / aoutx.h
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252b5132 1/* BFD semi-generic back-end for a.out binaries.
82704155 2 Copyright (C) 1990-2019 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
455const bfd_target *
116c20d2
NC		 456NAME (aout, some_aout_object_p) (bfd *abfd,
457 struct internal_exec *execp,
458 const bfd_target *(*callback_to_real_object_p) (bfd *))
252b5132
RH		 459{
460 struct aout_data_struct *rawptr, *oldrawptr;
461 const bfd_target *result;
116c20d2 462 bfd_size_type 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
RH		 593
594 return abfd->xvec;
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;
116c20d2 674 bfd_size_type 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;
894
895 /* Text. */
923f08ff
AM		 896 obj_textsec (abfd)->filepos = pos;
897 if (!obj_textsec (abfd)->user_set_vma)
898 obj_textsec (abfd)->vma = vma;
252b5132 899 else
923f08ff 900 vma = obj_textsec (abfd)->vma;
252b5132 901
eea6121a
AM		 902 pos += obj_textsec (abfd)->size;
903 vma += obj_textsec (abfd)->size;
252b5132
RH		 904
905 /* Data. */
923f08ff 906 if (!obj_datasec (abfd)->user_set_vma)
252b5132 907 {
eea6121a 908 obj_textsec (abfd)->size += pad;
252b5132
RH		 909 pos += pad;
910 vma += pad;
923f08ff 911 obj_datasec (abfd)->vma = vma;
252b5132
RH		 912 }
913 else
923f08ff
AM		 914 vma = obj_datasec (abfd)->vma;
915 obj_datasec (abfd)->filepos = pos;
eea6121a
AM		 916 pos += obj_datasec (abfd)->size;
917 vma += obj_datasec (abfd)->size;
252b5132
RH		 918
919 /* BSS. */
923f08ff 920 if (!obj_bsssec (abfd)->user_set_vma)
252b5132 921 {
eea6121a 922 obj_datasec (abfd)->size += pad;
252b5132
RH		 923 pos += pad;
924 vma += pad;
923f08ff 925 obj_bsssec (abfd)->vma = vma;
252b5132
RH		 926 }
927 else
928 {
08da05b0 929 /* The VMA of the .bss section is set by the VMA of the
07d6d2b8
AM		 930 .data section plus the size of the .data section. We may
931 need to add padding bytes to make this true. */
252b5132
RH		 932 pad = obj_bsssec (abfd)->vma - vma;
933 if (pad > 0)
934 {
eea6121a 935 obj_datasec (abfd)->size += pad;
252b5132
RH		 936 pos += pad;
937 }
938 }
923f08ff 939 obj_bsssec (abfd)->filepos = pos;
252b5132
RH		 940
941 /* Fix up the exec header. */
eea6121a
AM		 942 execp->a_text = obj_textsec (abfd)->size;
943 execp->a_data = obj_datasec (abfd)->size;
944 execp->a_bss = obj_bsssec (abfd)->size;
bbb1afc8 945 N_SET_MAGIC (execp, OMAGIC);
252b5132
RH		 946}
947
948static void
116c20d2 949adjust_z_magic (bfd *abfd, struct internal_exec *execp)
252b5132
RH		 950{
951 bfd_size_type data_pad, text_pad;
952 file_ptr text_end;
dc810e39 953 const struct aout_backend_data *abdp;
116c20d2
NC		 954 /* TRUE if text includes exec header. */
955 bfd_boolean ztih;
0ef5a5bd 956
252b5132
RH		 957 abdp = aout_backend_info (abfd);
958
959 /* Text. */
960 ztih = (abdp != NULL
961 && (abdp->text_includes_header
962 || obj_aout_subformat (abfd) == q_magic_format));
923f08ff
AM		 963 obj_textsec (abfd)->filepos = (ztih
964 ? adata (abfd).exec_bytes_size
965 : adata (abfd).zmagic_disk_block_size);
966 if (! obj_textsec (abfd)->user_set_vma)
252b5132
RH		 967 {
968 /* ?? Do we really need to check for relocs here? */
923f08ff
AM		 969 obj_textsec (abfd)->vma = ((abfd->flags & HAS_RELOC)
970 ? 0
971 : (ztih
972 ? (abdp->default_text_vma
973 + adata (abfd).exec_bytes_size)
974 : abdp->default_text_vma));
252b5132
RH		 975 text_pad = 0;
976 }
977 else
978 {
979 /* The .text section is being loaded at an unusual address. We
07d6d2b8
AM		 980 may need to pad it such that the .data section starts at a page
981 boundary. */
252b5132
RH		 982 if (ztih)
983 text_pad = ((obj_textsec (abfd)->filepos - obj_textsec (abfd)->vma)
984 & (adata (abfd).page_size - 1));
985 else
986 text_pad = ((- obj_textsec (abfd)->vma)
987 & (adata (abfd).page_size - 1));
988 }
989
990 /* Find start of data. */
991 if (ztih)
992 {
eea6121a 993 text_end = obj_textsec (abfd)->filepos + obj_textsec (abfd)->size;
252b5132
RH		 994 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
995 }
996 else
997 {
998 /* Note that if page_size == zmagic_disk_block_size, then
999 filepos == page_size, and this case is the same as the ztih
1000 case. */
eea6121a 1001 text_end = obj_textsec (abfd)->size;
252b5132
RH		 1002 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
1003 text_end += obj_textsec (abfd)->filepos;
1004 }
eea6121a 1005 obj_textsec (abfd)->size += text_pad;
252b5132
RH		 1006 text_end += text_pad;
1007
1008 /* Data. */
923f08ff 1009 if (!obj_datasec (abfd)->user_set_vma)
252b5132
RH		 1010 {
1011 bfd_vma vma;
eea6121a 1012 vma = obj_textsec (abfd)->vma + obj_textsec (abfd)->size;
923f08ff 1013 obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
252b5132
RH		 1014 }
1015 if (abdp && abdp->zmagic_mapped_contiguous)
1016 {
dee0a8f4
NC		 1017 asection * text = obj_textsec (abfd);
1018 asection * data = obj_datasec (abfd);
1019
eea6121a 1020 text_pad = data->vma - (text->vma + text->size);
dee0a8f4
NC		 1021 /* Only pad the text section if the data
1022 section is going to be placed after it. */
1023 if (text_pad > 0)
eea6121a 1024 text->size += text_pad;
252b5132 1025 }
923f08ff 1026 obj_datasec (abfd)->filepos = (obj_textsec (abfd)->filepos
eea6121a 1027 + obj_textsec (abfd)->size);
0ef5a5bd 1028
252b5132 1029 /* Fix up exec header while we're at it. */
eea6121a 1030 execp->a_text = obj_textsec (abfd)->size;
252b5132 1031 if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted)))
923f08ff 1032 execp->a_text += adata (abfd).exec_bytes_size;
252b5132 1033 if (obj_aout_subformat (abfd) == q_magic_format)
bbb1afc8 1034 N_SET_MAGIC (execp, QMAGIC);
252b5132 1035 else
bbb1afc8 1036 N_SET_MAGIC (execp, ZMAGIC);
252b5132
RH		 1037
1038 /* Spec says data section should be rounded up to page boundary. */
eea6121a
AM		 1039 obj_datasec (abfd)->size
1040 = align_power (obj_datasec (abfd)->size,
923f08ff 1041 obj_bsssec (abfd)->alignment_power);
eea6121a 1042 execp->a_data = BFD_ALIGN (obj_datasec (abfd)->size,
923f08ff 1043 adata (abfd).page_size);
eea6121a 1044 data_pad = execp->a_data - obj_datasec (abfd)->size;
252b5132
RH		 1045
1046 /* BSS. */
923f08ff
AM		 1047 if (!obj_bsssec (abfd)->user_set_vma)
1048 obj_bsssec (abfd)->vma = (obj_datasec (abfd)->vma
eea6121a 1049 + obj_datasec (abfd)->size);
252b5132
RH		 1050 /* If the BSS immediately follows the data section and extra space
1051 in the page is left after the data section, fudge data
1052 in the header so that the bss section looks smaller by that
1053 amount. We'll start the bss section there, and lie to the OS.
1054 (Note that a linker script, as well as the above assignment,
1055 could have explicitly set the BSS vma to immediately follow
1056 the data section.) */
923f08ff 1057 if (align_power (obj_bsssec (abfd)->vma, obj_bsssec (abfd)->alignment_power)
eea6121a
AM		 1058 == obj_datasec (abfd)->vma + obj_datasec (abfd)->size)
1059 execp->a_bss = (data_pad > obj_bsssec (abfd)->size
1060 ? 0 : obj_bsssec (abfd)->size - data_pad);
252b5132 1061 else
eea6121a 1062 execp->a_bss = obj_bsssec (abfd)->size;
252b5132
RH		 1063}
1064
1065static void
116c20d2 1066adjust_n_magic (bfd *abfd, struct internal_exec *execp)
252b5132 1067{
923f08ff 1068 file_ptr pos = adata (abfd).exec_bytes_size;
252b5132
RH		 1069 bfd_vma vma = 0;
1070 int pad;
0ef5a5bd 1071
252b5132 1072 /* Text. */
923f08ff
AM		 1073 obj_textsec (abfd)->filepos = pos;
1074 if (!obj_textsec (abfd)->user_set_vma)
1075 obj_textsec (abfd)->vma = vma;
252b5132 1076 else
923f08ff 1077 vma = obj_textsec (abfd)->vma;
eea6121a
AM		 1078 pos += obj_textsec (abfd)->size;
1079 vma += obj_textsec (abfd)->size;
252b5132
RH		 1080
1081 /* Data. */
923f08ff
AM		 1082 obj_datasec (abfd)->filepos = pos;
1083 if (!obj_datasec (abfd)->user_set_vma)
1084 obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
1085 vma = obj_datasec (abfd)->vma;
0ef5a5bd 1086
252b5132 1087 /* Since BSS follows data immediately, see if it needs alignment. */
eea6121a 1088 vma += obj_datasec (abfd)->size;
923f08ff 1089 pad = align_power (vma, obj_bsssec (abfd)->alignment_power) - vma;
eea6121a
AM		 1090 obj_datasec (abfd)->size += pad;
1091 pos += obj_datasec (abfd)->size;
252b5132
RH		 1092
1093 /* BSS. */
923f08ff
AM		 1094 if (!obj_bsssec (abfd)->user_set_vma)
1095 obj_bsssec (abfd)->vma = vma;
252b5132 1096 else
923f08ff 1097 vma = obj_bsssec (abfd)->vma;
252b5132
RH		 1098
1099 /* Fix up exec header. */
eea6121a
AM		 1100 execp->a_text = obj_textsec (abfd)->size;
1101 execp->a_data = obj_datasec (abfd)->size;
1102 execp->a_bss = obj_bsssec (abfd)->size;
bbb1afc8 1103 N_SET_MAGIC (execp, NMAGIC);
252b5132
RH		 1104}
1105
b34976b6 1106bfd_boolean
3a8c4a5b 1107NAME (aout, adjust_sizes_and_vmas) (bfd *abfd)
252b5132
RH		 1108{
1109 struct internal_exec *execp = exec_hdr (abfd);
1110
116c20d2 1111 if (! NAME (aout, make_sections) (abfd))
b34976b6 1112 return FALSE;
252b5132 1113
923f08ff 1114 if (adata (abfd).magic != undecided_magic)
b34976b6 1115 return TRUE;
252b5132 1116
eea6121a
AM		 1117 obj_textsec (abfd)->size =
1118 align_power (obj_textsec (abfd)->size,
923f08ff 1119 obj_textsec (abfd)->alignment_power);
252b5132 1120
252b5132
RH		 1121 /* Rule (heuristic) for when to pad to a new page. Note that there
1122 are (at least) two ways demand-paged (ZMAGIC) files have been
1123 handled. Most Berkeley-based systems start the text segment at
1124 (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text
1125 segment right after the exec header; the latter is counted in the
1126 text segment size, and is paged in by the kernel with the rest of
0ef5a5bd 1127 the text. */
252b5132
RH		 1128
1129 /* This perhaps isn't the right way to do this, but made it simpler for me
1130 to understand enough to implement it. Better would probably be to go
1131 right from BFD flags to alignment/positioning characteristics. But the
1132 old code was sloppy enough about handling the flags, and had enough
1133 other magic, that it was a little hard for me to understand. I think
1134 I understand it better now, but I haven't time to do the cleanup this
1135 minute. */
1136
1137 if (abfd->flags & D_PAGED)
1138 /* Whether or not WP_TEXT is set -- let D_PAGED override. */
923f08ff 1139 adata (abfd).magic = z_magic;
252b5132 1140 else if (abfd->flags & WP_TEXT)
923f08ff 1141 adata (abfd).magic = n_magic;
252b5132 1142 else
923f08ff 1143 adata (abfd).magic = o_magic;
252b5132
RH		 1144
1145#ifdef BFD_AOUT_DEBUG /* requires gcc2 */
1146#if __GNUC__ >= 2
1147 fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n",
1148 ({ char *str;
923f08ff
AM		 1149 switch (adata (abfd).magic)
1150 {
1151 case n_magic: str = "NMAGIC"; break;
1152 case o_magic: str = "OMAGIC"; break;
1153 case z_magic: str = "ZMAGIC"; break;
1154 default: abort ();
1155 }
252b5132
RH		 1156 str;
1157 }),
eea6121a 1158 obj_textsec (abfd)->vma, obj_textsec (abfd)->size,
07d6d2b8 1159 obj_textsec (abfd)->alignment_power,
eea6121a 1160 obj_datasec (abfd)->vma, obj_datasec (abfd)->size,
07d6d2b8 1161 obj_datasec (abfd)->alignment_power,
eea6121a 1162 obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size,
07d6d2b8 1163 obj_bsssec (abfd)->alignment_power);
252b5132
RH		 1164#endif
1165#endif
1166
923f08ff 1167 switch (adata (abfd).magic)
252b5132
RH		 1168 {
1169 case o_magic:
1170 adjust_o_magic (abfd, execp);
1171 break;
1172 case z_magic:
1173 adjust_z_magic (abfd, execp);
1174 break;
1175 case n_magic:
1176 adjust_n_magic (abfd, execp);
1177 break;
1178 default:
1179 abort ();
1180 }
1181
1182#ifdef BFD_AOUT_DEBUG
1183 fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n",
eea6121a 1184 obj_textsec (abfd)->vma, obj_textsec (abfd)->size,
07d6d2b8 1185 obj_textsec (abfd)->filepos,
eea6121a 1186 obj_datasec (abfd)->vma, obj_datasec (abfd)->size,
07d6d2b8 1187 obj_datasec (abfd)->filepos,
eea6121a 1188 obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size);
252b5132
RH		 1189#endif
1190
b34976b6 1191 return TRUE;
252b5132
RH		 1192}
1193
1194/*
1195FUNCTION
1196 aout_@var{size}_new_section_hook
1197
1198SYNOPSIS
07d6d2b8 1199 bfd_boolean aout_@var{size}_new_section_hook,
252b5132 1200 (bfd *abfd,
116c20d2 1201 asection *newsect);
252b5132
RH		 1202
1203DESCRIPTION
1204 Called by the BFD in response to a @code{bfd_make_section}
1205 request.
1206*/
b34976b6 1207bfd_boolean
116c20d2 1208NAME (aout, new_section_hook) (bfd *abfd, asection *newsect)
252b5132 1209{
f7c33884 1210 /* Align to double at least. */
923f08ff 1211 newsect->alignment_power = bfd_get_arch_info (abfd)->section_align_power;
252b5132 1212
252b5132 1213 if (bfd_get_format (abfd) == bfd_object)
f7c33884
NC		 1214 {
1215 if (obj_textsec (abfd) == NULL && !strcmp (newsect->name, ".text"))
1216 {
1217 obj_textsec (abfd)= newsect;
1218 newsect->target_index = N_TEXT;
f7c33884 1219 }
f592407e 1220 else if (obj_datasec (abfd) == NULL && !strcmp (newsect->name, ".data"))
f7c33884
NC		 1221 {
1222 obj_datasec (abfd) = newsect;
1223 newsect->target_index = N_DATA;
f7c33884 1224 }
f592407e 1225 else if (obj_bsssec (abfd) == NULL && !strcmp (newsect->name, ".bss"))
f7c33884
NC		 1226 {
1227 obj_bsssec (abfd) = newsect;
1228 newsect->target_index = N_BSS;
f7c33884
NC		 1229 }
1230 }
252b5132 1231
f7c33884 1232 /* We allow more than three sections internally. */
f592407e 1233 return _bfd_generic_new_section_hook (abfd, newsect);
252b5132
RH		 1234}
1235
b34976b6 1236bfd_boolean
116c20d2
NC		 1237NAME (aout, set_section_contents) (bfd *abfd,
1238 sec_ptr section,
1239 const void * location,
1240 file_ptr offset,
1241 bfd_size_type count)
252b5132 1242{
252b5132
RH		 1243 if (! abfd->output_has_begun)
1244 {
3a8c4a5b 1245 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
b34976b6 1246 return FALSE;
252b5132
RH		 1247 }
1248
1249 if (section == obj_bsssec (abfd))
1250 {
1251 bfd_set_error (bfd_error_no_contents);
b34976b6 1252 return FALSE;
252b5132
RH		 1253 }
1254
1255 if (section != obj_textsec (abfd)
1256 && section != obj_datasec (abfd))
1257 {
e6af3a53
NC		 1258 if (aout_section_merge_with_text_p (abfd, section))
1259 section->filepos = obj_textsec (abfd)->filepos +
1260 (section->vma - obj_textsec (abfd)->vma);
1261 else
1262 {
4eca0228 1263 _bfd_error_handler
695344c0 1264 /* xgettext:c-format */
871b3ab2 1265 (_("%pB: can not represent section `%pA' in a.out object file format"),
dae82561 1266 abfd, section);
07d6d2b8
AM		 1267 bfd_set_error (bfd_error_nonrepresentable_section);
1268 return FALSE;
e6af3a53 1269 }
252b5132
RH		 1270 }
1271
1272 if (count != 0)
1273 {
1274 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
dc810e39 1275 || bfd_bwrite (location, count, abfd) != count)
b34976b6 1276 return FALSE;
252b5132
RH		 1277 }
1278
b34976b6 1279 return TRUE;
252b5132
RH		 1280}
1281\f
1282/* Read the external symbols from an a.out file. */
1283
b34976b6 1284static bfd_boolean
116c20d2 1285aout_get_external_symbols (bfd *abfd)
252b5132 1286{
116c20d2 1287 if (obj_aout_external_syms (abfd) == NULL)
252b5132
RH		 1288 {
1289 bfd_size_type count;
1290 struct external_nlist *syms;
7c53fd1c 1291 bfd_size_type amt = exec_hdr (abfd)->a_syms;
252b5132 1292
7c53fd1c 1293 count = amt / EXTERNAL_NLIST_SIZE;
6b8f0fd5
MS		 1294 if (count == 0)
1295 return TRUE; /* Nothing to do. */
252b5132
RH		 1296
1297#ifdef USE_MMAP
7c53fd1c 1298 if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd), amt,
b34976b6
AM		 1299 &obj_aout_sym_window (abfd), TRUE))
1300 return FALSE;
252b5132
RH		 1301 syms = (struct external_nlist *) obj_aout_sym_window (abfd).data;
1302#else
1303 /* We allocate using malloc to make the values easy to free
1304 later on. If we put them on the objalloc it might not be
1305 possible to free them. */
7c53fd1c 1306 syms = (struct external_nlist *) bfd_malloc (amt);
6b8f0fd5 1307 if (syms == NULL)
b34976b6 1308 return FALSE;
252b5132 1309
7c53fd1c
AM		 1310 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
1311 || bfd_bread (syms, amt, abfd) != amt)
1312 {
1313 free (syms);
1314 return FALSE;
1315 }
252b5132
RH		 1316#endif
1317
1318 obj_aout_external_syms (abfd) = syms;
1319 obj_aout_external_sym_count (abfd) = count;
1320 }
0ef5a5bd 1321
252b5132
RH		 1322 if (obj_aout_external_strings (abfd) == NULL
1323 && exec_hdr (abfd)->a_syms != 0)
1324 {
1325 unsigned char string_chars[BYTES_IN_WORD];
1326 bfd_size_type stringsize;
1327 char *strings;
dc810e39 1328 bfd_size_type amt = BYTES_IN_WORD;
252b5132
RH		 1329
1330 /* Get the size of the strings. */
1331 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
116c20d2 1332 || bfd_bread ((void *) string_chars, amt, abfd) != amt)
b34976b6 1333 return FALSE;
252b5132 1334 stringsize = GET_WORD (abfd, string_chars);
0301ce14
AM		 1335 if (stringsize == 0)
1336 stringsize = 1;
1337 else if (stringsize < BYTES_IN_WORD
1338 || (size_t) stringsize != stringsize)
1339 {
1340 bfd_set_error (bfd_error_bad_value);
1341 return FALSE;
1342 }
252b5132
RH		 1343
1344#ifdef USE_MMAP
0301ce14 1345 if (stringsize >= BYTES_IN_WORD)
252b5132 1346 {
bf82069d 1347 if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize + 1,
0301ce14
AM		 1348 &obj_aout_string_window (abfd), TRUE))
1349 return FALSE;
1350 strings = (char *) obj_aout_string_window (abfd).data;
252b5132 1351 }
0301ce14 1352 else
252b5132 1353#endif
0301ce14 1354 {
bf82069d 1355 strings = (char *) bfd_malloc (stringsize + 1);
0301ce14
AM		 1356 if (strings == NULL)
1357 return FALSE;
1358
1359 if (stringsize >= BYTES_IN_WORD)
1360 {
1361 /* Keep the string count in the buffer for convenience
1362 when indexing with e_strx. */
1363 amt = stringsize - BYTES_IN_WORD;
1364 if (bfd_bread (strings + BYTES_IN_WORD, amt, abfd) != amt)
1365 {
1366 free (strings);
1367 return FALSE;
1368 }
1369 }
1370 }
252b5132
RH		 1371 /* Ensure that a zero index yields an empty string. */
1372 strings[0] = '\0';
1373
bf82069d
NC		 1374 /* Ensure that the string buffer is NUL terminated. */
1375 strings[stringsize] = 0;
252b5132
RH		 1376
1377 obj_aout_external_strings (abfd) = strings;
1378 obj_aout_external_string_size (abfd) = stringsize;
1379 }
1380
b34976b6 1381 return TRUE;
252b5132
RH		 1382}
1383
1384/* Translate an a.out symbol into a BFD symbol. The desc, other, type
1385 and symbol->value fields of CACHE_PTR will be set from the a.out
1386 nlist structure. This function is responsible for setting
1387 symbol->flags and symbol->section, and adjusting symbol->value. */
1388
b34976b6 1389static bfd_boolean
116c20d2 1390translate_from_native_sym_flags (bfd *abfd, aout_symbol_type *cache_ptr)
252b5132
RH		 1391{
1392 flagword visible;
1393
1394 if ((cache_ptr->type & N_STAB) != 0
1395 || cache_ptr->type == N_FN)
1396 {
1397 asection *sec;
1398
1399 /* This is a debugging symbol. */
252b5132
RH		 1400 cache_ptr->symbol.flags = BSF_DEBUGGING;
1401
1402 /* Work out the symbol section. */
1403 switch (cache_ptr->type & N_TYPE)
1404 {
1405 case N_TEXT:
1406 case N_FN:
1407 sec = obj_textsec (abfd);
1408 break;
1409 case N_DATA:
1410 sec = obj_datasec (abfd);
1411 break;
1412 case N_BSS:
1413 sec = obj_bsssec (abfd);
1414 break;
1415 default:
1416 case N_ABS:
1417 sec = bfd_abs_section_ptr;
1418 break;
1419 }
1420
1421 cache_ptr->symbol.section = sec;
1422 cache_ptr->symbol.value -= sec->vma;
1423
b34976b6 1424 return TRUE;
252b5132
RH		 1425 }
1426
1427 /* Get the default visibility. This does not apply to all types, so
1428 we just hold it in a local variable to use if wanted. */
1429 if ((cache_ptr->type & N_EXT) == 0)
1430 visible = BSF_LOCAL;
1431 else
1432 visible = BSF_GLOBAL;
1433
1434 switch (cache_ptr->type)
1435 {
1436 default:
1437 case N_ABS: case N_ABS | N_EXT:
1438 cache_ptr->symbol.section = bfd_abs_section_ptr;
1439 cache_ptr->symbol.flags = visible;
1440 break;
1441
1442 case N_UNDF | N_EXT:
1443 if (cache_ptr->symbol.value != 0)
1444 {
1445 /* This is a common symbol. */
1446 cache_ptr->symbol.flags = BSF_GLOBAL;
1447 cache_ptr->symbol.section = bfd_com_section_ptr;
1448 }
1449 else
1450 {
1451 cache_ptr->symbol.flags = 0;
1452 cache_ptr->symbol.section = bfd_und_section_ptr;
1453 }
1454 break;
1455
1456 case N_TEXT: case N_TEXT | N_EXT:
1457 cache_ptr->symbol.section = obj_textsec (abfd);
1458 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1459 cache_ptr->symbol.flags = visible;
1460 break;
1461
1462 /* N_SETV symbols used to represent set vectors placed in the
1463 data section. They are no longer generated. Theoretically,
1464 it was possible to extract the entries and combine them with
1465 new ones, although I don't know if that was ever actually
1466 done. Unless that feature is restored, treat them as data
1467 symbols. */
1468 case N_SETV: case N_SETV | N_EXT:
1469 case N_DATA: case N_DATA | N_EXT:
1470 cache_ptr->symbol.section = obj_datasec (abfd);
1471 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1472 cache_ptr->symbol.flags = visible;
1473 break;
1474
1475 case N_BSS: case N_BSS | N_EXT:
1476 cache_ptr->symbol.section = obj_bsssec (abfd);
1477 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1478 cache_ptr->symbol.flags = visible;
1479 break;
1480
1481 case N_SETA: case N_SETA | N_EXT:
1482 case N_SETT: case N_SETT | N_EXT:
1483 case N_SETD: case N_SETD | N_EXT:
1484 case N_SETB: case N_SETB | N_EXT:
1485 {
1486 /* This code is no longer needed. It used to be used to make
07d6d2b8
AM		 1487 the linker handle set symbols, but they are now handled in
1488 the add_symbols routine instead. */
252b5132
RH		 1489 switch (cache_ptr->type & N_TYPE)
1490 {
1491 case N_SETA:
1492 cache_ptr->symbol.section = bfd_abs_section_ptr;
1493 break;
1494 case N_SETT:
1495 cache_ptr->symbol.section = obj_textsec (abfd);
1496 break;
1497 case N_SETD:
1498 cache_ptr->symbol.section = obj_datasec (abfd);
1499 break;
1500 case N_SETB:
1501 cache_ptr->symbol.section = obj_bsssec (abfd);
1502 break;
1503 }
1504
1505 cache_ptr->symbol.flags |= BSF_CONSTRUCTOR;
1506 }
1507 break;
1508
1509 case N_WARNING:
1510 /* This symbol is the text of a warning message. The next
1511 symbol is the symbol to associate the warning with. If a
1512 reference is made to that symbol, a warning is issued. */
1513 cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_WARNING;
1514 cache_ptr->symbol.section = bfd_abs_section_ptr;
1515 break;
1516
1517 case N_INDR: case N_INDR | N_EXT:
1518 /* An indirect symbol. This consists of two symbols in a row.
1519 The first symbol is the name of the indirection. The second
1520 symbol is the name of the target. A reference to the first
1521 symbol becomes a reference to the second. */
1522 cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_INDIRECT | visible;
1523 cache_ptr->symbol.section = bfd_ind_section_ptr;
1524 break;
1525
1526 case N_WEAKU:
1527 cache_ptr->symbol.section = bfd_und_section_ptr;
1528 cache_ptr->symbol.flags = BSF_WEAK;
1529 break;
1530
1531 case N_WEAKA:
1532 cache_ptr->symbol.section = bfd_abs_section_ptr;
1533 cache_ptr->symbol.flags = BSF_WEAK;
1534 break;
1535
1536 case N_WEAKT:
1537 cache_ptr->symbol.section = obj_textsec (abfd);
1538 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1539 cache_ptr->symbol.flags = BSF_WEAK;
1540 break;
1541
1542 case N_WEAKD:
1543 cache_ptr->symbol.section = obj_datasec (abfd);
1544 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1545 cache_ptr->symbol.flags = BSF_WEAK;
1546 break;
1547
1548 case N_WEAKB:
1549 cache_ptr->symbol.section = obj_bsssec (abfd);
1550 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1551 cache_ptr->symbol.flags = BSF_WEAK;
1552 break;
1553 }
1554
b34976b6 1555 return TRUE;
252b5132
RH		 1556}
1557
1558/* Set the fields of SYM_POINTER according to CACHE_PTR. */
1559
b34976b6 1560static bfd_boolean
116c20d2
NC		 1561translate_to_native_sym_flags (bfd *abfd,
1562 asymbol *cache_ptr,
1563 struct external_nlist *sym_pointer)
252b5132
RH		 1564{
1565 bfd_vma value = cache_ptr->value;
1566 asection *sec;
1567 bfd_vma off;
1568
1569 /* Mask out any existing type bits in case copying from one section
1570 to another. */
1571 sym_pointer->e_type[0] &= ~N_TYPE;
1572
e6f7f6d1 1573 sec = bfd_asymbol_section (cache_ptr);
252b5132
RH		 1574 off = 0;
1575
1576 if (sec == NULL)
1577 {
1578 /* This case occurs, e.g., for the *DEBUG* section of a COFF
1579 file. */
4eca0228 1580 _bfd_error_handler
695344c0 1581 /* xgettext:c-format */
871b3ab2 1582 (_("%pB: can not represent section for symbol `%s' in a.out "
4eca0228 1583 "object file format"),
dae82561 1584 abfd,
252b5132
RH		 1585 cache_ptr->name != NULL ? cache_ptr->name : _("*unknown*"));
1586 bfd_set_error (bfd_error_nonrepresentable_section);
b34976b6 1587 return FALSE;
252b5132
RH		 1588 }
1589
1590 if (sec->output_section != NULL)
1591 {
1592 off = sec->output_offset;
1593 sec = sec->output_section;
1594 }
1595
1596 if (bfd_is_abs_section (sec))
1597 sym_pointer->e_type[0] |= N_ABS;
1598 else if (sec == obj_textsec (abfd))
1599 sym_pointer->e_type[0] |= N_TEXT;
1600 else if (sec == obj_datasec (abfd))
1601 sym_pointer->e_type[0] |= N_DATA;
1602 else if (sec == obj_bsssec (abfd))
1603 sym_pointer->e_type[0] |= N_BSS;
1604 else if (bfd_is_und_section (sec))
1605 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1606 else if (bfd_is_ind_section (sec))
1607 sym_pointer->e_type[0] = N_INDR;
1608 else if (bfd_is_com_section (sec))
1609 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1610 else
1611 {
e6af3a53
NC		 1612 if (aout_section_merge_with_text_p (abfd, sec))
1613 sym_pointer->e_type[0] |= N_TEXT;
1614 else
1615 {
4eca0228 1616 _bfd_error_handler
695344c0 1617 /* xgettext:c-format */
871b3ab2 1618 (_("%pB: can not represent section `%pA' in a.out object file format"),
dae82561 1619 abfd, sec);
07d6d2b8
AM		 1620 bfd_set_error (bfd_error_nonrepresentable_section);
1621 return FALSE;
e6af3a53 1622 }
252b5132
RH		 1623 }
1624
f7c33884 1625 /* Turn the symbol from section relative to absolute again. */
252b5132
RH		 1626 value += sec->vma + off;
1627
1628 if ((cache_ptr->flags & BSF_WARNING) != 0)
1629 sym_pointer->e_type[0] = N_WARNING;
1630
1631 if ((cache_ptr->flags & BSF_DEBUGGING) != 0)
1632 sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type;
1633 else if ((cache_ptr->flags & BSF_GLOBAL) != 0)
1634 sym_pointer->e_type[0] |= N_EXT;
930d924d
L		 1635 else if ((cache_ptr->flags & BSF_LOCAL) != 0)
1636 sym_pointer->e_type[0] &= ~N_EXT;
252b5132
RH		 1637
1638 if ((cache_ptr->flags & BSF_CONSTRUCTOR) != 0)
1639 {
1640 int type = ((aout_symbol_type *) cache_ptr)->type;
f7c33884 1641
252b5132
RH		 1642 switch (type)
1643 {
1644 case N_ABS: type = N_SETA; break;
1645 case N_TEXT: type = N_SETT; break;
1646 case N_DATA: type = N_SETD; break;
1647 case N_BSS: type = N_SETB; break;
1648 }
1649 sym_pointer->e_type[0] = type;
1650 }
1651
1652 if ((cache_ptr->flags & BSF_WEAK) != 0)
1653 {
1654 int type;
1655
1656 switch (sym_pointer->e_type[0] & N_TYPE)
1657 {
1658 default:
1659 case N_ABS: type = N_WEAKA; break;
1660 case N_TEXT: type = N_WEAKT; break;
1661 case N_DATA: type = N_WEAKD; break;
1662 case N_BSS: type = N_WEAKB; break;
1663 case N_UNDF: type = N_WEAKU; break;
1664 }
1665 sym_pointer->e_type[0] = type;
1666 }
1667
923f08ff 1668 PUT_WORD (abfd, value, sym_pointer->e_value);
252b5132 1669
b34976b6 1670 return TRUE;
252b5132
RH		 1671}
1672\f
0ef5a5bd 1673/* Native-level interface to symbols. */
252b5132
RH		 1674
1675asymbol *
116c20d2 1676NAME (aout, make_empty_symbol) (bfd *abfd)
252b5132 1677{
dc810e39 1678 bfd_size_type amt = sizeof (aout_symbol_type);
116c20d2 1679
d3ce72d0
NC		 1680 aout_symbol_type *new_symbol = (aout_symbol_type *) bfd_zalloc (abfd, amt);
1681 if (!new_symbol)
252b5132 1682 return NULL;
d3ce72d0 1683 new_symbol->symbol.the_bfd = abfd;
252b5132 1684
d3ce72d0 1685 return &new_symbol->symbol;
252b5132
RH		 1686}
1687
1688/* Translate a set of internal symbols into external symbols. */
1689
b34976b6 1690bfd_boolean
116c20d2
NC		 1691NAME (aout, translate_symbol_table) (bfd *abfd,
1692 aout_symbol_type *in,
1693 struct external_nlist *ext,
1694 bfd_size_type count,
1695 char *str,
1696 bfd_size_type strsize,
1697 bfd_boolean dynamic)
252b5132
RH		 1698{
1699 struct external_nlist *ext_end;
1700
1701 ext_end = ext + count;
1702 for (; ext < ext_end; ext++, in++)
1703 {
1704 bfd_vma x;
1705
1706 x = GET_WORD (abfd, ext->e_strx);
1707 in->symbol.the_bfd = abfd;
1708
1709 /* For the normal symbols, the zero index points at the number
1710 of bytes in the string table but is to be interpreted as the
1711 null string. For the dynamic symbols, the number of bytes in
1712 the string table is stored in the __DYNAMIC structure and the
1713 zero index points at an actual string. */
1714 if (x == 0 && ! dynamic)
1715 in->symbol.name = "";
1716 else if (x < strsize)
1717 in->symbol.name = str + x;
1718 else
0d329c0a
AM		 1719 {
1720 _bfd_error_handler
1721 (_("%pB: invalid string offset %" PRIu64 " >= %" PRIu64),
1722 abfd, (uint64_t) x, (uint64_t) strsize);
1723 bfd_set_error (bfd_error_bad_value);
1724 return FALSE;
1725 }
252b5132
RH		 1726
1727 in->symbol.value = GET_SWORD (abfd, ext->e_value);
dc810e39
AM		 1728 in->desc = H_GET_16 (abfd, ext->e_desc);
1729 in->other = H_GET_8 (abfd, ext->e_other);
1730 in->type = H_GET_8 (abfd, ext->e_type);
252b5132
RH		 1731 in->symbol.udata.p = NULL;
1732
1733 if (! translate_from_native_sym_flags (abfd, in))
b34976b6 1734 return FALSE;
252b5132
RH		 1735
1736 if (dynamic)
1737 in->symbol.flags |= BSF_DYNAMIC;
1738 }
1739
b34976b6 1740 return TRUE;
252b5132
RH		 1741}
1742
1743/* We read the symbols into a buffer, which is discarded when this
1744 function exits. We read the strings into a buffer large enough to
0ef5a5bd 1745 hold them all plus all the cached symbol entries. */
252b5132 1746
b34976b6 1747bfd_boolean
116c20d2 1748NAME (aout, slurp_symbol_table) (bfd *abfd)
252b5132
RH		 1749{
1750 struct external_nlist *old_external_syms;
1751 aout_symbol_type *cached;
dc810e39 1752 bfd_size_type cached_size;
252b5132 1753
f7c33884 1754 /* If there's no work to be done, don't do any. */
116c20d2 1755 if (obj_aout_symbols (abfd) != NULL)
b34976b6 1756 return TRUE;
252b5132
RH		 1757
1758 old_external_syms = obj_aout_external_syms (abfd);
1759
1760 if (! aout_get_external_symbols (abfd))
b34976b6 1761 return FALSE;
252b5132 1762
dc810e39 1763 cached_size = obj_aout_external_sym_count (abfd);
87b32780
MS		 1764 if (cached_size == 0)
1765 return TRUE; /* Nothing to do. */
1766
dc810e39 1767 cached_size *= sizeof (aout_symbol_type);
a50b1753 1768 cached = (aout_symbol_type *) bfd_zmalloc (cached_size);
87b32780 1769 if (cached == NULL)
b34976b6 1770 return FALSE;
252b5132
RH		 1771
1772 /* Convert from external symbol information to internal. */
116c20d2 1773 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 1774 (abfd, cached,
1775 obj_aout_external_syms (abfd),
1776 obj_aout_external_sym_count (abfd),
1777 obj_aout_external_strings (abfd),
1778 obj_aout_external_string_size (abfd),
b34976b6 1779 FALSE)))
252b5132
RH		 1780 {
1781 free (cached);
b34976b6 1782 return FALSE;
252b5132
RH		 1783 }
1784
ed48ec2e 1785 abfd->symcount = obj_aout_external_sym_count (abfd);
252b5132
RH		 1786
1787 obj_aout_symbols (abfd) = cached;
1788
1789 /* It is very likely that anybody who calls this function will not
1790 want the external symbol information, so if it was allocated
1791 because of our call to aout_get_external_symbols, we free it up
1792 right away to save space. */
116c20d2
NC		 1793 if (old_external_syms == NULL
1794 && obj_aout_external_syms (abfd) != NULL)
252b5132
RH		 1795 {
1796#ifdef USE_MMAP
1797 bfd_free_window (&obj_aout_sym_window (abfd));
1798#else
1799 free (obj_aout_external_syms (abfd));
1800#endif
1801 obj_aout_external_syms (abfd) = NULL;
1802 }
1803
b34976b6 1804 return TRUE;
252b5132
RH		 1805}
1806\f
1807/* We use a hash table when writing out symbols so that we only write
1808 out a particular string once. This helps particularly when the
1809 linker writes out stabs debugging entries, because each different
1810 contributing object file tends to have many duplicate stabs
1811 strings.
1812
1813 This hash table code breaks dbx on SunOS 4.1.3, so we don't do it
1814 if BFD_TRADITIONAL_FORMAT is set. */
1815
252b5132
RH		 1816/* Get the index of a string in a strtab, adding it if it is not
1817 already present. */
1818
116c20d2
NC		 1819static inline bfd_size_type
1820add_to_stringtab (bfd *abfd,
1821 struct bfd_strtab_hash *tab,
1822 const char *str,
1823 bfd_boolean copy)
252b5132 1824{
b34976b6 1825 bfd_boolean hash;
91d6fa6a 1826 bfd_size_type str_index;
252b5132
RH		 1827
1828 /* An index of 0 always means the empty string. */
1829 if (str == 0 || *str == '\0')
1830 return 0;
1831
1832 /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx
1833 doesn't understand a hashed string table. */
b34976b6 1834 hash = TRUE;
252b5132 1835 if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
b34976b6 1836 hash = FALSE;
252b5132 1837
91d6fa6a 1838 str_index = _bfd_stringtab_add (tab, str, hash, copy);
252b5132 1839
91d6fa6a 1840 if (str_index != (bfd_size_type) -1)
116c20d2
NC		 1841 /* Add BYTES_IN_WORD to the return value to account for the
1842 space taken up by the string table size. */
91d6fa6a 1843 str_index += BYTES_IN_WORD;
252b5132 1844
91d6fa6a 1845 return str_index;
252b5132
RH		 1846}
1847
1848/* Write out a strtab. ABFD is already at the right location in the
1849 file. */
1850
b34976b6 1851static bfd_boolean
116c20d2 1852emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab)
252b5132
RH		 1853{
1854 bfd_byte buffer[BYTES_IN_WORD];
dc810e39 1855 bfd_size_type amt = BYTES_IN_WORD;
252b5132
RH		 1856
1857 /* The string table starts with the size. */
1858 PUT_WORD (abfd, _bfd_stringtab_size (tab) + BYTES_IN_WORD, buffer);
116c20d2 1859 if (bfd_bwrite ((void *) buffer, amt, abfd) != amt)
b34976b6 1860 return FALSE;
252b5132
RH		 1861
1862 return _bfd_stringtab_emit (abfd, tab);
1863}
1864\f
b34976b6 1865bfd_boolean
116c20d2 1866NAME (aout, write_syms) (bfd *abfd)
252b5132
RH		 1867{
1868 unsigned int count ;
1869 asymbol **generic = bfd_get_outsymbols (abfd);
1870 struct bfd_strtab_hash *strtab;
1871
1872 strtab = _bfd_stringtab_init ();
1873 if (strtab == NULL)
b34976b6 1874 return FALSE;
252b5132
RH		 1875
1876 for (count = 0; count < bfd_get_symcount (abfd); count++)
1877 {
1878 asymbol *g = generic[count];
1879 bfd_size_type indx;
1880 struct external_nlist nsp;
dc810e39 1881 bfd_size_type amt;
252b5132 1882
b34976b6 1883 indx = add_to_stringtab (abfd, strtab, g->name, FALSE);
252b5132
RH		 1884 if (indx == (bfd_size_type) -1)
1885 goto error_return;
1886 PUT_WORD (abfd, indx, (bfd_byte *) nsp.e_strx);
1887
923f08ff 1888 if (bfd_asymbol_flavour (g) == abfd->xvec->flavour)
252b5132 1889 {
923f08ff
AM		 1890 H_PUT_16 (abfd, aout_symbol (g)->desc, nsp.e_desc);
1891 H_PUT_8 (abfd, aout_symbol (g)->other, nsp.e_other);
1892 H_PUT_8 (abfd, aout_symbol (g)->type, nsp.e_type);
252b5132
RH		 1893 }
1894 else
1895 {
dc810e39
AM		 1896 H_PUT_16 (abfd, 0, nsp.e_desc);
1897 H_PUT_8 (abfd, 0, nsp.e_other);
1898 H_PUT_8 (abfd, 0, nsp.e_type);
252b5132
RH		 1899 }
1900
1901 if (! translate_to_native_sym_flags (abfd, g, &nsp))
1902 goto error_return;
1903
dc810e39 1904 amt = EXTERNAL_NLIST_SIZE;
116c20d2 1905 if (bfd_bwrite ((void *) &nsp, amt, abfd) != amt)
252b5132
RH		 1906 goto error_return;
1907
1908 /* NB: `KEEPIT' currently overlays `udata.p', so set this only
1909 here, at the end. */
1910 g->KEEPIT = count;
1911 }
1912
1913 if (! emit_stringtab (abfd, strtab))
1914 goto error_return;
1915
1916 _bfd_stringtab_free (strtab);
1917
b34976b6 1918 return TRUE;
252b5132
RH		 1919
1920error_return:
1921 _bfd_stringtab_free (strtab);
b34976b6 1922 return FALSE;
252b5132 1923}
252b5132
RH		 1924\f
1925long
116c20d2 1926NAME (aout, canonicalize_symtab) (bfd *abfd, asymbol **location)
252b5132 1927{
116c20d2
NC		 1928 unsigned int counter = 0;
1929 aout_symbol_type *symbase;
252b5132 1930
116c20d2
NC		 1931 if (!NAME (aout, slurp_symbol_table) (abfd))
1932 return -1;
252b5132 1933
116c20d2
NC		 1934 for (symbase = obj_aout_symbols (abfd);
1935 counter++ < bfd_get_symcount (abfd);
1936 )
1937 *(location++) = (asymbol *) (symbase++);
1938 *location++ =0;
1939 return bfd_get_symcount (abfd);
252b5132 1940}
252b5132 1941\f
f7c33884 1942/* Standard reloc stuff. */
0ef5a5bd 1943/* Output standard relocation information to a file in target byte order. */
252b5132 1944
116c20d2
NC		 1945extern void NAME (aout, swap_std_reloc_out)
1946 (bfd *, arelent *, struct reloc_std_external *);
252b5132
RH		 1947
1948void
116c20d2
NC		 1949NAME (aout, swap_std_reloc_out) (bfd *abfd,
1950 arelent *g,
1951 struct reloc_std_external *natptr)
252b5132
RH		 1952{
1953 int r_index;
1954 asymbol *sym = *(g->sym_ptr_ptr);
1955 int r_extern;
1956 unsigned int r_length;
1957 int r_pcrel;
1958 int r_baserel, r_jmptable, r_relative;
1959 asection *output_section = sym->section->output_section;
1960
923f08ff 1961 PUT_WORD (abfd, g->address, natptr->r_address);
252b5132 1962
e2996cc3 1963 BFD_ASSERT (g->howto != NULL);
f7c33884
NC		 1964 r_length = g->howto->size ; /* Size as a power of two. */
1965 r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */
252b5132
RH		 1966 /* XXX This relies on relocs coming from a.out files. */
1967 r_baserel = (g->howto->type & 8) != 0;
1968 r_jmptable = (g->howto->type & 16) != 0;
1969 r_relative = (g->howto->type & 32) != 0;
1970
f7c33884 1971 /* Name was clobbered by aout_write_syms to be symbol index. */
252b5132
RH		 1972
1973 /* If this relocation is relative to a symbol then set the
1974 r_index to the symbols index, and the r_extern bit.
1975
1976 Absolute symbols can come in in two ways, either as an offset
1977 from the abs section, or as a symbol which has an abs value.
f7c33884 1978 check for that here. */
252b5132 1979
252b5132
RH		 1980 if (bfd_is_com_section (output_section)
1981 || bfd_is_abs_section (output_section)
22184a77
NC		 1982 || bfd_is_und_section (output_section)
1983 /* PR gas/3041 a.out relocs against weak symbols
1984 must be treated as if they were against externs. */
1985 || (sym->flags & BSF_WEAK))
252b5132
RH		 1986 {
1987 if (bfd_abs_section_ptr->symbol == sym)
f7c33884
NC		 1988 {
1989 /* Whoops, looked like an abs symbol, but is
1990 really an offset from the abs section. */
1991 r_index = N_ABS;
1992 r_extern = 0;
1993 }
252b5132 1994 else
f7c33884
NC		 1995 {
1996 /* Fill in symbol. */
1997 r_extern = 1;
1998 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
1999 }
252b5132
RH		 2000 }
2001 else
2002 {
f7c33884 2003 /* Just an ordinary section. */
252b5132
RH		 2004 r_extern = 0;
2005 r_index = output_section->target_index;
2006 }
2007
f7c33884 2008 /* Now the fun stuff. */
923f08ff
AM		 2009 if (bfd_header_big_endian (abfd))
2010 {
252b5132
RH		 2011 natptr->r_index[0] = r_index >> 16;
2012 natptr->r_index[1] = r_index >> 8;
2013 natptr->r_index[2] = r_index;
923f08ff
AM		 2014 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
2015 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
2016 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
2017 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
2018 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
2019 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
2020 }
2021 else
2022 {
2023 natptr->r_index[2] = r_index >> 16;
2024 natptr->r_index[1] = r_index >> 8;
2025 natptr->r_index[0] = r_index;
2026 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
2027 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
2028 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
2029 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
2030 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
2031 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
2032 }
252b5132
RH		 2033}
2034
f7c33884 2035/* Extended stuff. */
0ef5a5bd 2036/* Output extended relocation information to a file in target byte order. */
252b5132 2037
116c20d2
NC		 2038extern void NAME (aout, swap_ext_reloc_out)
2039 (bfd *, arelent *, struct reloc_ext_external *);
252b5132
RH		 2040
2041void
116c20d2
NC		 2042NAME (aout, swap_ext_reloc_out) (bfd *abfd,
2043 arelent *g,
2044 struct reloc_ext_external *natptr)
252b5132
RH		 2045{
2046 int r_index;
2047 int r_extern;
2048 unsigned int r_type;
dc810e39 2049 bfd_vma r_addend;
252b5132
RH		 2050 asymbol *sym = *(g->sym_ptr_ptr);
2051 asection *output_section = sym->section->output_section;
2052
2053 PUT_WORD (abfd, g->address, natptr->r_address);
2054
2055 r_type = (unsigned int) g->howto->type;
2056
2057 r_addend = g->addend;
2058 if ((sym->flags & BSF_SECTION_SYM) != 0)
2059 r_addend += (*(g->sym_ptr_ptr))->section->output_section->vma;
2060
2061 /* If this relocation is relative to a symbol then set the
2062 r_index to the symbols index, and the r_extern bit.
2063
2064 Absolute symbols can come in in two ways, either as an offset
2065 from the abs section, or as a symbol which has an abs value.
2066 check for that here. */
e6f7f6d1 2067 if (bfd_is_abs_section (bfd_asymbol_section (sym)))
252b5132
RH		 2068 {
2069 r_extern = 0;
2070 r_index = N_ABS;
2071 }
2072 else if ((sym->flags & BSF_SECTION_SYM) == 0)
2073 {
e6f7f6d1 2074 if (bfd_is_und_section (bfd_asymbol_section (sym))
252b5132
RH		 2075 || (sym->flags & BSF_GLOBAL) != 0)
2076 r_extern = 1;
2077 else
2078 r_extern = 0;
2079 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
2080 }
2081 else
2082 {
f7c33884 2083 /* Just an ordinary section. */
252b5132
RH		 2084 r_extern = 0;
2085 r_index = output_section->target_index;
2086 }
2087
f7c33884 2088 /* Now the fun stuff. */
923f08ff
AM		 2089 if (bfd_header_big_endian (abfd))
2090 {
2091 natptr->r_index[0] = r_index >> 16;
2092 natptr->r_index[1] = r_index >> 8;
2093 natptr->r_index[2] = r_index;
2094 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
2095 | (r_type << RELOC_EXT_BITS_TYPE_SH_BIG));
2096 }
2097 else
2098 {
2099 natptr->r_index[2] = r_index >> 16;
2100 natptr->r_index[1] = r_index >> 8;
2101 natptr->r_index[0] = r_index;
2102 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
2103 | (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE));
2104 }
252b5132
RH		 2105
2106 PUT_WORD (abfd, r_addend, natptr->r_addend);
2107}
2108
2109/* BFD deals internally with all things based from the section they're
2110 in. so, something in 10 bytes into a text section with a base of
2111 50 would have a symbol (.text+10) and know .text vma was 50.
2112
2113 Aout keeps all it's symbols based from zero, so the symbol would
2114 contain 60. This macro subs the base of each section from the value
923f08ff
AM		 2115 to give the true offset from the section. */
2116
2117#define MOVE_ADDRESS(ad) \
2118 if (r_extern) \
2119 { \
2120 /* Undefined symbol. */ \
2121 cache_ptr->sym_ptr_ptr = symbols + r_index; \
252b5132 2122 cache_ptr->addend = ad; \
252b5132 2123 } \
923f08ff
AM		 2124 else \
2125 { \
2126 /* Defined, section relative. Replace symbol with pointer to \
2127 symbol which points to section. */ \
2128 switch (r_index) \
2129 { \
2130 case N_TEXT: \
2131 case N_TEXT | N_EXT: \
2132 cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \
2133 cache_ptr->addend = ad - su->textsec->vma; \
2134 break; \
2135 case N_DATA: \
2136 case N_DATA | N_EXT: \
2137 cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \
2138 cache_ptr->addend = ad - su->datasec->vma; \
2139 break; \
2140 case N_BSS: \
2141 case N_BSS | N_EXT: \
2142 cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \
2143 cache_ptr->addend = ad - su->bsssec->vma; \
2144 break; \
2145 default: \
2146 case N_ABS: \
2147 case N_ABS | N_EXT: \
2148 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
2149 cache_ptr->addend = ad; \
2150 break; \
2151 } \
2152 }
252b5132
RH		 2153
2154void
116c20d2
NC		 2155NAME (aout, swap_ext_reloc_in) (bfd *abfd,
2156 struct reloc_ext_external *bytes,
2157 arelent *cache_ptr,
2158 asymbol **symbols,
2159 bfd_size_type symcount)
252b5132
RH		 2160{
2161 unsigned int r_index;
2162 int r_extern;
2163 unsigned int r_type;
2164 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2165
2166 cache_ptr->address = (GET_SWORD (abfd, bytes->r_address));
2167
f7c33884 2168 /* Now the fun stuff. */
923f08ff
AM		 2169 if (bfd_header_big_endian (abfd))
2170 {
d45913a0
DA		 2171 r_index = (((unsigned int) bytes->r_index[0] << 16)
2172 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2173 | bytes->r_index[2]);
2174 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
2175 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
2176 >> RELOC_EXT_BITS_TYPE_SH_BIG);
2177 }
2178 else
2179 {
d45913a0
DA		 2180 r_index = (((unsigned int) bytes->r_index[2] << 16)
2181 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2182 | bytes->r_index[0]);
2183 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
2184 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
2185 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
2186 }
252b5132 2187
ad756e3f
AM		 2188 if (r_type < TABLE_SIZE (howto_table_ext))
2189 cache_ptr->howto = howto_table_ext + r_type;
2190 else
2191 cache_ptr->howto = NULL;
252b5132
RH		 2192
2193 /* Base relative relocs are always against the symbol table,
2194 regardless of the setting of r_extern. r_extern just reflects
2195 whether the symbol the reloc is against is local or global. */
d45913a0
DA		 2196 if (r_type == (unsigned int) RELOC_BASE10
2197 || r_type == (unsigned int) RELOC_BASE13
2198 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 2199 r_extern = 1;
2200
2201 if (r_extern && r_index > symcount)
2202 {
2203 /* We could arrange to return an error, but it might be useful
07d6d2b8 2204 to see the file even if it is bad. */
252b5132
RH		 2205 r_extern = 0;
2206 r_index = N_ABS;
2207 }
2208
923f08ff 2209 MOVE_ADDRESS (GET_SWORD (abfd, bytes->r_addend));
252b5132
RH		 2210}
2211
2212void
116c20d2
NC		 2213NAME (aout, swap_std_reloc_in) (bfd *abfd,
2214 struct reloc_std_external *bytes,
2215 arelent *cache_ptr,
2216 asymbol **symbols,
2217 bfd_size_type symcount)
252b5132
RH		 2218{
2219 unsigned int r_index;
2220 int r_extern;
2221 unsigned int r_length;
2222 int r_pcrel;
2223 int r_baserel, r_jmptable, r_relative;
2224 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2225 unsigned int howto_idx;
2226
dc810e39 2227 cache_ptr->address = H_GET_32 (abfd, bytes->r_address);
252b5132 2228
f7c33884 2229 /* Now the fun stuff. */
923f08ff
AM		 2230 if (bfd_header_big_endian (abfd))
2231 {
d45913a0
DA		 2232 r_index = (((unsigned int) bytes->r_index[0] << 16)
2233 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2234 | bytes->r_index[2]);
2235 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
2236 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
2237 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
2238 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
2239 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
2240 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
2241 >> RELOC_STD_BITS_LENGTH_SH_BIG);
2242 }
2243 else
2244 {
d45913a0
DA		 2245 r_index = (((unsigned int) bytes->r_index[2] << 16)
2246 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2247 | bytes->r_index[0]);
2248 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
2249 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
2250 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE));
2251 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE));
2252 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_LITTLE));
2253 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
2254 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
2255 }
252b5132 2256
923f08ff
AM		 2257 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
2258 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 2259 if (howto_idx < TABLE_SIZE (howto_table_std))
2260 {
2261 cache_ptr->howto = howto_table_std + howto_idx;
2262 if (cache_ptr->howto->type == (unsigned int) -1)
2263 cache_ptr->howto = NULL;
2264 }
2265 else
2266 cache_ptr->howto = NULL;
252b5132
RH		 2267
2268 /* Base relative relocs are always against the symbol table,
2269 regardless of the setting of r_extern. r_extern just reflects
2270 whether the symbol the reloc is against is local or global. */
2271 if (r_baserel)
2272 r_extern = 1;
2273
116acb2c 2274 if (r_extern && r_index >= symcount)
252b5132
RH		 2275 {
2276 /* We could arrange to return an error, but it might be useful
116acb2c
AM		 2277 to see the file even if it is bad. FIXME: Of course this
2278 means that objdump -r *doesn't* see the actual reloc, and
2279 objcopy silently writes a different reloc. */
252b5132
RH		 2280 r_extern = 0;
2281 r_index = N_ABS;
2282 }
2283
923f08ff 2284 MOVE_ADDRESS (0);
252b5132
RH		 2285}
2286
2287/* Read and swap the relocs for a section. */
2288
b34976b6 2289bfd_boolean
116c20d2 2290NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols)
252b5132 2291{
dc810e39 2292 bfd_size_type count;
252b5132 2293 bfd_size_type reloc_size;
116c20d2 2294 void * relocs;
252b5132
RH		 2295 arelent *reloc_cache;
2296 size_t each_size;
2297 unsigned int counter = 0;
2298 arelent *cache_ptr;
dc810e39 2299 bfd_size_type amt;
252b5132
RH		 2300
2301 if (asect->relocation)
b34976b6 2302 return TRUE;
252b5132
RH		 2303
2304 if (asect->flags & SEC_CONSTRUCTOR)
b34976b6 2305 return TRUE;
252b5132
RH		 2306
2307 if (asect == obj_datasec (abfd))
923f08ff 2308 reloc_size = exec_hdr (abfd)->a_drsize;
252b5132 2309 else if (asect == obj_textsec (abfd))
923f08ff 2310 reloc_size = exec_hdr (abfd)->a_trsize;
252b5132
RH		 2311 else if (asect == obj_bsssec (abfd))
2312 reloc_size = 0;
2313 else
2314 {
2315 bfd_set_error (bfd_error_invalid_operation);
b34976b6 2316 return FALSE;
252b5132
RH		 2317 }
2318
078c4bfc
MS		 2319 if (reloc_size == 0)
2320 return TRUE; /* Nothing to be done. */
2321
252b5132 2322 if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
b34976b6 2323 return FALSE;
252b5132
RH		 2324
2325 each_size = obj_reloc_entry_size (abfd);
2326
2327 count = reloc_size / each_size;
078c4bfc
MS		 2328 if (count == 0)
2329 return TRUE; /* Nothing to be done. */
252b5132 2330
dc810e39 2331 amt = count * sizeof (arelent);
a50b1753 2332 reloc_cache = (arelent *) bfd_zmalloc (amt);
078c4bfc 2333 if (reloc_cache == NULL)
b34976b6 2334 return FALSE;
252b5132 2335
dc810e39 2336 relocs = bfd_malloc (reloc_size);
078c4bfc 2337 if (relocs == NULL)
252b5132
RH		 2338 {
2339 free (reloc_cache);
b34976b6 2340 return FALSE;
252b5132
RH		 2341 }
2342
dc810e39 2343 if (bfd_bread (relocs, reloc_size, abfd) != reloc_size)
252b5132
RH		 2344 {
2345 free (relocs);
2346 free (reloc_cache);
b34976b6 2347 return FALSE;
252b5132
RH		 2348 }
2349
2350 cache_ptr = reloc_cache;
2351 if (each_size == RELOC_EXT_SIZE)
2352 {
dc810e39 2353 struct reloc_ext_external *rptr = (struct reloc_ext_external *) relocs;
252b5132
RH		 2354
2355 for (; counter < count; counter++, rptr++, cache_ptr++)
1642229e 2356 MY_swap_ext_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2357 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2358 }
2359 else
2360 {
dc810e39 2361 struct reloc_std_external *rptr = (struct reloc_std_external *) relocs;
252b5132
RH		 2362
2363 for (; counter < count; counter++, rptr++, cache_ptr++)
2364 MY_swap_std_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2365 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2366 }
2367
2368 free (relocs);
2369
2370 asect->relocation = reloc_cache;
2371 asect->reloc_count = cache_ptr - reloc_cache;
2372
b34976b6 2373 return TRUE;
252b5132
RH		 2374}
2375
2376/* Write out a relocation section into an object file. */
2377
b34976b6 2378bfd_boolean
116c20d2 2379NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section)
252b5132
RH		 2380{
2381 arelent **generic;
2382 unsigned char *native, *natptr;
2383 size_t each_size;
2384
2385 unsigned int count = section->reloc_count;
dc810e39 2386 bfd_size_type natsize;
252b5132
RH		 2387
2388 if (count == 0 || section->orelocation == NULL)
b34976b6 2389 return TRUE;
252b5132
RH		 2390
2391 each_size = obj_reloc_entry_size (abfd);
dc810e39 2392 natsize = (bfd_size_type) each_size * count;
a50b1753 2393 native = (unsigned char *) bfd_zalloc (abfd, natsize);
252b5132 2394 if (!native)
b34976b6 2395 return FALSE;
252b5132
RH		 2396
2397 generic = section->orelocation;
2398
2399 if (each_size == RELOC_EXT_SIZE)
2400 {
2401 for (natptr = native;
2402 count != 0;
2403 --count, natptr += each_size, ++generic)
e2996cc3 2404 {
92744f05
NC		 2405 /* PR 20921: If the howto field has not been initialised then skip
2406 this reloc.
2407 PR 20929: Similarly for the symbol field. */
2408 if ((*generic)->howto == NULL
2409 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2410 {
2411 bfd_set_error (bfd_error_invalid_operation);
92744f05 2412 _bfd_error_handler (_("\
871b3ab2 2413%pB: attempt to write out unknown reloc type"), abfd);
e2996cc3
NC		 2414 return FALSE;
2415 }
2416 MY_swap_ext_reloc_out (abfd, *generic,
2417 (struct reloc_ext_external *) natptr);
2418 }
252b5132
RH		 2419 }
2420 else
2421 {
2422 for (natptr = native;
2423 count != 0;
2424 --count, natptr += each_size, ++generic)
e2996cc3 2425 {
92744f05
NC		 2426 if ((*generic)->howto == NULL
2427 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2428 {
2429 bfd_set_error (bfd_error_invalid_operation);
92744f05 2430 _bfd_error_handler (_("\
871b3ab2 2431%pB: attempt to write out unknown reloc type"), abfd);
e2996cc3
NC		 2432 return FALSE;
2433 }
2434 MY_swap_std_reloc_out (abfd, *generic,
2435 (struct reloc_std_external *) natptr);
2436 }
252b5132
RH		 2437 }
2438
116c20d2 2439 if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
dc810e39 2440 {
923f08ff 2441 bfd_release (abfd, native);
b34976b6 2442 return FALSE;
dc810e39 2443 }
252b5132
RH		 2444 bfd_release (abfd, native);
2445
b34976b6 2446 return TRUE;
252b5132
RH		 2447}
2448
f7c33884
NC		 2449/* This is stupid. This function should be a boolean predicate. */
2450
252b5132 2451long
116c20d2
NC		 2452NAME (aout, canonicalize_reloc) (bfd *abfd,
2453 sec_ptr section,
2454 arelent **relptr,
2455 asymbol **symbols)
252b5132
RH		 2456{
2457 arelent *tblptr = section->relocation;
2458 unsigned int count;
2459
2460 if (section == obj_bsssec (abfd))
2461 {
2462 *relptr = NULL;
2463 return 0;
2464 }
2465
116c20d2 2466 if (!(tblptr || NAME (aout, slurp_reloc_table) (abfd, section, symbols)))
252b5132
RH		 2467 return -1;
2468
923f08ff
AM		 2469 if (section->flags & SEC_CONSTRUCTOR)
2470 {
2471 arelent_chain *chain = section->constructor_chain;
2472 for (count = 0; count < section->reloc_count; count ++)
2473 {
2474 *relptr ++ = &chain->relent;
2475 chain = chain->next;
2476 }
252b5132 2477 }
923f08ff
AM		 2478 else
2479 {
2480 tblptr = section->relocation;
252b5132 2481
923f08ff
AM		 2482 for (count = 0; count++ < section->reloc_count; )
2483 {
2484 *relptr++ = tblptr++;
2485 }
2486 }
252b5132
RH		 2487 *relptr = 0;
2488
2489 return section->reloc_count;
2490}
2491
2492long
116c20d2 2493NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect)
252b5132 2494{
3a551c7a
AM		 2495 bfd_size_type count;
2496
923f08ff
AM		 2497 if (bfd_get_format (abfd) != bfd_object)
2498 {
2499 bfd_set_error (bfd_error_invalid_operation);
2500 return -1;
2501 }
f7c33884 2502
923f08ff 2503 if (asect->flags & SEC_CONSTRUCTOR)
3a551c7a
AM		 2504 count = asect->reloc_count;
2505 else if (asect == obj_datasec (abfd))
2506 count = exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
2507 else if (asect == obj_textsec (abfd))
2508 count = exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
2509 else if (asect == obj_bsssec (abfd))
2510 count = 0;
2511 else
2512 {
2513 bfd_set_error (bfd_error_invalid_operation);
2514 return -1;
2515 }
252b5132 2516
3a551c7a
AM		 2517 if (count >= LONG_MAX / sizeof (arelent *))
2518 {
2519 bfd_set_error (bfd_error_file_too_big);
2520 return -1;
2521 }
2522 return (count + 1) * sizeof (arelent *);
252b5132 2523}
252b5132
RH		 2524\f
2525long
116c20d2 2526NAME (aout, get_symtab_upper_bound) (bfd *abfd)
252b5132 2527{
116c20d2 2528 if (!NAME (aout, slurp_symbol_table) (abfd))
252b5132
RH		 2529 return -1;
2530
2531 return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
2532}
2533
1725a96e 2534alent *
116c20d2
NC		 2535NAME (aout, get_lineno) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2536 asymbol *ignore_symbol ATTRIBUTE_UNUSED)
252b5132 2537{
116c20d2 2538 return NULL;
252b5132
RH		 2539}
2540
252b5132 2541void
116c20d2
NC		 2542NAME (aout, get_symbol_info) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2543 asymbol *symbol,
2544 symbol_info *ret)
252b5132
RH		 2545{
2546 bfd_symbol_info (symbol, ret);
2547
2548 if (ret->type == '?')
2549 {
923f08ff 2550 int type_code = aout_symbol (symbol)->type & 0xff;
252b5132
RH		 2551 const char *stab_name = bfd_get_stab_name (type_code);
2552 static char buf[10];
2553
2554 if (stab_name == NULL)
2555 {
e60b52c6 2556 sprintf (buf, "(%d)", type_code);
252b5132
RH		 2557 stab_name = buf;
2558 }
2559 ret->type = '-';
2560 ret->stab_type = type_code;
923f08ff
AM		 2561 ret->stab_other = (unsigned) (aout_symbol (symbol)->other & 0xff);
2562 ret->stab_desc = (unsigned) (aout_symbol (symbol)->desc & 0xffff);
252b5132
RH		 2563 ret->stab_name = stab_name;
2564 }
2565}
2566
252b5132 2567void
116c20d2
NC		 2568NAME (aout, print_symbol) (bfd *abfd,
2569 void * afile,
2570 asymbol *symbol,
2571 bfd_print_symbol_type how)
252b5132
RH		 2572{
2573 FILE *file = (FILE *)afile;
2574
923f08ff 2575 switch (how)
252b5132 2576 {
923f08ff
AM		 2577 case bfd_print_symbol_name:
2578 if (symbol->name)
2579 fprintf (file,"%s", symbol->name);
2580 break;
2581 case bfd_print_symbol_more:
2582 fprintf (file,"%4x %2x %2x",
2583 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2584 (unsigned) (aout_symbol (symbol)->other & 0xff),
2585 (unsigned) (aout_symbol (symbol)->type));
2586 break;
2587 case bfd_print_symbol_all:
2588 {
2589 const char *section_name = symbol->section->name;
252b5132 2590
116c20d2 2591 bfd_print_symbol_vandf (abfd, (void *)file, symbol);
252b5132 2592
923f08ff
AM		 2593 fprintf (file," %-5s %04x %02x %02x",
2594 section_name,
2595 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2596 (unsigned) (aout_symbol (symbol)->other & 0xff),
2597 (unsigned) (aout_symbol (symbol)->type & 0xff));
2598 if (symbol->name)
2599 fprintf (file," %s", symbol->name);
2600 }
2601 break;
252b5132 2602 }
252b5132
RH		 2603}
2604
2605/* If we don't have to allocate more than 1MB to hold the generic
2606 symbols, we use the generic minisymbol methord: it's faster, since
2607 it only translates the symbols once, not multiple times. */
2608#define MINISYM_THRESHOLD (1000000 / sizeof (asymbol))
2609
2610/* Read minisymbols. For minisymbols, we use the unmodified a.out
2611 symbols. The minisymbol_to_symbol function translates these into
2612 BFD asymbol structures. */
2613
2614long
116c20d2
NC		 2615NAME (aout, read_minisymbols) (bfd *abfd,
2616 bfd_boolean dynamic,
2617 void * *minisymsp,
2618 unsigned int *sizep)
252b5132
RH		 2619{
2620 if (dynamic)
116c20d2
NC		 2621 /* We could handle the dynamic symbols here as well, but it's
2622 easier to hand them off. */
2623 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
252b5132
RH		 2624
2625 if (! aout_get_external_symbols (abfd))
2626 return -1;
2627
2628 if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2629 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
2630
116c20d2 2631 *minisymsp = (void *) obj_aout_external_syms (abfd);
252b5132
RH		 2632
2633 /* By passing the external symbols back from this routine, we are
2634 giving up control over the memory block. Clear
2635 obj_aout_external_syms, so that we do not try to free it
2636 ourselves. */
2637 obj_aout_external_syms (abfd) = NULL;
2638
2639 *sizep = EXTERNAL_NLIST_SIZE;
2640 return obj_aout_external_sym_count (abfd);
2641}
2642
2643/* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
2644 unmodified a.out symbol. The SYM argument is a structure returned
2645 by bfd_make_empty_symbol, which we fill in here. */
2646
2647asymbol *
116c20d2
NC		 2648NAME (aout, minisymbol_to_symbol) (bfd *abfd,
2649 bfd_boolean dynamic,
2650 const void * minisym,
2651 asymbol *sym)
252b5132
RH		 2652{
2653 if (dynamic
2654 || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2655 return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
2656
2657 memset (sym, 0, sizeof (aout_symbol_type));
2658
2659 /* We call translate_symbol_table to translate a single symbol. */
116c20d2 2660 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 2661 (abfd,
2662 (aout_symbol_type *) sym,
2663 (struct external_nlist *) minisym,
2664 (bfd_size_type) 1,
2665 obj_aout_external_strings (abfd),
2666 obj_aout_external_string_size (abfd),
b34976b6 2667 FALSE)))
252b5132
RH		 2668 return NULL;
2669
2670 return sym;
2671}
2672
f7c33884
NC		 2673/* Provided a BFD, a section and an offset into the section, calculate
2674 and return the name of the source file and the line nearest to the
2675 wanted location. */
252b5132 2676
b34976b6 2677bfd_boolean
116c20d2 2678NAME (aout, find_nearest_line) (bfd *abfd,
116c20d2 2679 asymbol **symbols,
fb167eb2 2680 asection *section,
116c20d2
NC		 2681 bfd_vma offset,
2682 const char **filename_ptr,
2683 const char **functionname_ptr,
fb167eb2
AM		 2684 unsigned int *line_ptr,
2685 unsigned int *disriminator_ptr)
252b5132 2686{
f7c33884 2687 /* Run down the file looking for the filename, function and linenumber. */
252b5132 2688 asymbol **p;
dc810e39
AM		 2689 const char *directory_name = NULL;
2690 const char *main_file_name = NULL;
2691 const char *current_file_name = NULL;
116c20d2 2692 const char *line_file_name = NULL; /* Value of current_file_name at line number. */
dc810e39 2693 const char *line_directory_name = NULL; /* Value of directory_name at line number. */
252b5132
RH		 2694 bfd_vma low_line_vma = 0;
2695 bfd_vma low_func_vma = 0;
2696 asymbol *func = 0;
dc810e39 2697 bfd_size_type filelen, funclen;
252b5132
RH		 2698 char *buf;
2699
2700 *filename_ptr = abfd->filename;
50455f1a 2701 *functionname_ptr = NULL;
252b5132 2702 *line_ptr = 0;
fb167eb2
AM		 2703 if (disriminator_ptr)
2704 *disriminator_ptr = 0;
f7c33884 2705
116c20d2 2706 if (symbols != NULL)
923f08ff
AM		 2707 {
2708 for (p = symbols; *p; p++)
2709 {
2710 aout_symbol_type *q = (aout_symbol_type *) (*p);
2711 next:
2712 switch (q->type)
2713 {
2714 case N_TEXT:
2715 /* If this looks like a file name symbol, and it comes after
2716 the line number we have found so far, but before the
2717 offset, then we have probably not found the right line
2718 number. */
2719 if (q->symbol.value <= offset
2720 && ((q->symbol.value > low_line_vma
2721 && (line_file_name != NULL
2722 || *line_ptr != 0))
2723 || (q->symbol.value > low_func_vma
2724 && func != NULL)))
2725 {
2726 const char *symname;
252b5132 2727
923f08ff 2728 symname = q->symbol.name;
808346fc
NC		 2729
2730 if (symname != NULL
2731 && strlen (symname) > 2
2732 && strcmp (symname + strlen (symname) - 2, ".o") == 0)
923f08ff
AM		 2733 {
2734 if (q->symbol.value > low_line_vma)
2735 {
2736 *line_ptr = 0;
2737 line_file_name = NULL;
2738 }
2739 if (q->symbol.value > low_func_vma)
2740 func = NULL;
2741 }
2742 }
2743 break;
252b5132 2744
923f08ff
AM		 2745 case N_SO:
2746 /* If this symbol is less than the offset, but greater than
2747 the line number we have found so far, then we have not
2748 found the right line number. */
2749 if (q->symbol.value <= offset)
2750 {
2751 if (q->symbol.value > low_line_vma)
2752 {
2753 *line_ptr = 0;
2754 line_file_name = NULL;
2755 }
2756 if (q->symbol.value > low_func_vma)
2757 func = NULL;
2758 }
252b5132 2759
923f08ff
AM		 2760 main_file_name = current_file_name = q->symbol.name;
2761 /* Look ahead to next symbol to check if that too is an N_SO. */
2762 p++;
2763 if (*p == NULL)
c3864421 2764 goto done;
923f08ff
AM		 2765 q = (aout_symbol_type *) (*p);
2766 if (q->type != (int)N_SO)
2767 goto next;
2768
2769 /* Found a second N_SO First is directory; second is filename. */
2770 directory_name = current_file_name;
2771 main_file_name = current_file_name = q->symbol.name;
2772 if (obj_textsec (abfd) != section)
2773 goto done;
2774 break;
2775 case N_SOL:
2776 current_file_name = q->symbol.name;
2777 break;
252b5132 2778
923f08ff 2779 case N_SLINE:
252b5132 2780
923f08ff
AM		 2781 case N_DSLINE:
2782 case N_BSLINE:
2783 /* We'll keep this if it resolves nearer than the one we have
2784 already. */
2785 if (q->symbol.value >= low_line_vma
2786 && q->symbol.value <= offset)
2787 {
2788 *line_ptr = q->desc;
2789 low_line_vma = q->symbol.value;
2790 line_file_name = current_file_name;
2791 line_directory_name = directory_name;
2792 }
2793 break;
2794 case N_FUN:
2795 {
f7c33884 2796 /* We'll keep this if it is nearer than the one we have already. */
808346fc
NC		 2797 if (q->symbol.value >= low_func_vma
2798 && q->symbol.value <= offset)
f7c33884
NC		 2799 {
2800 low_func_vma = q->symbol.value;
2801 func = (asymbol *)q;
2802 }
923f08ff
AM		 2803 else if (q->symbol.value > offset)
2804 goto done;
2805 }
2806 break;
2807 }
252b5132 2808 }
252b5132 2809 }
252b5132
RH		 2810
2811 done:
2812 if (*line_ptr != 0)
2813 {
2814 main_file_name = line_file_name;
2815 directory_name = line_directory_name;
2816 }
2817
2818 if (main_file_name == NULL
5af11cab 2819 || IS_ABSOLUTE_PATH (main_file_name)
252b5132
RH		 2820 || directory_name == NULL)
2821 filelen = 0;
2822 else
2823 filelen = strlen (directory_name) + strlen (main_file_name);
f7c33884 2824
252b5132
RH		 2825 if (func == NULL)
2826 funclen = 0;
2827 else
2828 funclen = strlen (bfd_asymbol_name (func));
2829
2830 if (adata (abfd).line_buf != NULL)
2831 free (adata (abfd).line_buf);
f7c33884 2832
252b5132
RH		 2833 if (filelen + funclen == 0)
2834 adata (abfd).line_buf = buf = NULL;
2835 else
2836 {
a50b1753 2837 buf = (char *) bfd_malloc (filelen + funclen + 3);
252b5132
RH		 2838 adata (abfd).line_buf = buf;
2839 if (buf == NULL)
b34976b6 2840 return FALSE;
252b5132
RH		 2841 }
2842
2843 if (main_file_name != NULL)
2844 {
5af11cab 2845 if (IS_ABSOLUTE_PATH (main_file_name) || directory_name == NULL)
252b5132
RH		 2846 *filename_ptr = main_file_name;
2847 else
2848 {
50455f1a
NC		 2849 if (buf == NULL)
2850 /* PR binutils/20891: In a corrupt input file both
2851 main_file_name and directory_name can be empty... */
2852 * filename_ptr = NULL;
2853 else
2854 {
2855 snprintf (buf, filelen + 1, "%s%s", directory_name,
2856 main_file_name);
2857 *filename_ptr = buf;
2858 buf += filelen + 1;
2859 }
252b5132
RH		 2860 }
2861 }
2862
2863 if (func)
2864 {
2865 const char *function = func->name;
dc810e39 2866 char *colon;
252b5132 2867
e82ab856
NC		 2868 if (buf == NULL)
2869 {
2870 /* PR binutils/20892: In a corrupt input file func can be empty. */
2871 * functionname_ptr = NULL;
2872 return TRUE;
2873 }
252b5132
RH		 2874 /* The caller expects a symbol name. We actually have a
2875 function name, without the leading underscore. Put the
2876 underscore back in, so that the caller gets a symbol name. */
2877 if (bfd_get_symbol_leading_char (abfd) == '\0')
2878 strcpy (buf, function);
2879 else
2880 {
2881 buf[0] = bfd_get_symbol_leading_char (abfd);
2882 strcpy (buf + 1, function);
2883 }
f7c33884 2884 /* Have to remove : stuff. */
dc810e39
AM		 2885 colon = strchr (buf, ':');
2886 if (colon != NULL)
2887 *colon = '\0';
252b5132
RH		 2888 *functionname_ptr = buf;
2889 }
2890
b34976b6 2891 return TRUE;
252b5132
RH		 2892}
2893
252b5132 2894int
a6b96beb
AM		 2895NAME (aout, sizeof_headers) (bfd *abfd,
2896 struct bfd_link_info *info ATTRIBUTE_UNUSED)
252b5132 2897{
923f08ff 2898 return adata (abfd).exec_bytes_size;
252b5132
RH		 2899}
2900
2901/* Free all information we have cached for this BFD. We can always
2902 read it again later if we need it. */
2903
b34976b6 2904bfd_boolean
116c20d2 2905NAME (aout, bfd_free_cached_info) (bfd *abfd)
252b5132
RH		 2906{
2907 asection *o;
2908
920581c5
L		 2909 if (bfd_get_format (abfd) != bfd_object
2910 || abfd->tdata.aout_data == NULL)
b34976b6 2911 return TRUE;
252b5132
RH		 2912
2913#define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
2914 BFCI_FREE (obj_aout_symbols (abfd));
2915#ifdef USE_MMAP
2916 obj_aout_external_syms (abfd) = 0;
2917 bfd_free_window (&obj_aout_sym_window (abfd));
2918 bfd_free_window (&obj_aout_string_window (abfd));
2919 obj_aout_external_strings (abfd) = 0;
2920#else
2921 BFCI_FREE (obj_aout_external_syms (abfd));
2922 BFCI_FREE (obj_aout_external_strings (abfd));
2923#endif
116c20d2 2924 for (o = abfd->sections; o != NULL; o = o->next)
252b5132
RH		 2925 BFCI_FREE (o->relocation);
2926#undef BFCI_FREE
2927
b34976b6 2928 return TRUE;
252b5132
RH		 2929}
2930\f
2931/* a.out link code. */
2932
252b5132
RH		 2933/* Routine to create an entry in an a.out link hash table. */
2934
2935struct bfd_hash_entry *
116c20d2
NC		 2936NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry,
2937 struct bfd_hash_table *table,
2938 const char *string)
252b5132
RH		 2939{
2940 struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry;
2941
2942 /* Allocate the structure if it has not already been allocated by a
2943 subclass. */
116c20d2 2944 if (ret == NULL)
a50b1753 2945 ret = (struct aout_link_hash_entry *) bfd_hash_allocate (table,
07d6d2b8 2946 sizeof (* ret));
116c20d2
NC		 2947 if (ret == NULL)
2948 return NULL;
252b5132
RH		 2949
2950 /* Call the allocation method of the superclass. */
2951 ret = ((struct aout_link_hash_entry *)
2952 _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2953 table, string));
2954 if (ret)
2955 {
2956 /* Set local fields. */
b34976b6 2957 ret->written = FALSE;
252b5132
RH		 2958 ret->indx = -1;
2959 }
2960
2961 return (struct bfd_hash_entry *) ret;
2962}
2963
2964/* Initialize an a.out link hash table. */
2965
b34976b6 2966bfd_boolean
116c20d2
NC		 2967NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table,
2968 bfd *abfd,
2969 struct bfd_hash_entry *(*newfunc)
2970 (struct bfd_hash_entry *, struct bfd_hash_table *,
66eb6687
AM		 2971 const char *),
2972 unsigned int entsize)
252b5132 2973{
66eb6687 2974 return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize);
252b5132
RH		 2975}
2976
2977/* Create an a.out link hash table. */
2978
2979struct bfd_link_hash_table *
116c20d2 2980NAME (aout, link_hash_table_create) (bfd *abfd)
252b5132
RH		 2981{
2982 struct aout_link_hash_table *ret;
116c20d2 2983 bfd_size_type amt = sizeof (* ret);
252b5132 2984
a50b1753 2985 ret = (struct aout_link_hash_table *) bfd_malloc (amt);
252b5132 2986 if (ret == NULL)
116c20d2 2987 return NULL;
5ed6aba4 2988
66eb6687
AM		 2989 if (!NAME (aout, link_hash_table_init) (ret, abfd,
2990 NAME (aout, link_hash_newfunc),
2991 sizeof (struct aout_link_hash_entry)))
252b5132
RH		 2992 {
2993 free (ret);
116c20d2 2994 return NULL;
252b5132
RH		 2995 }
2996 return &ret->root;
2997}
2998
116c20d2 2999/* Add all symbols from an object file to the hash table. */
252b5132 3000
b34976b6 3001static bfd_boolean
116c20d2 3002aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 3003{
116c20d2
NC		 3004 bfd_boolean (*add_one_symbol)
3005 (struct bfd_link_info *, bfd *, const char *, flagword, asection *,
3006 bfd_vma, const char *, bfd_boolean, bfd_boolean,
3007 struct bfd_link_hash_entry **);
3008 struct external_nlist *syms;
3009 bfd_size_type sym_count;
3010 char *strings;
3011 bfd_boolean copy;
3012 struct aout_link_hash_entry **sym_hash;
3013 struct external_nlist *p;
3014 struct external_nlist *pend;
3015 bfd_size_type amt;
252b5132 3016
116c20d2
NC		 3017 syms = obj_aout_external_syms (abfd);
3018 sym_count = obj_aout_external_sym_count (abfd);
3019 strings = obj_aout_external_strings (abfd);
3020 if (info->keep_memory)
3021 copy = FALSE;
3022 else
3023 copy = TRUE;
252b5132 3024
116c20d2 3025 if (aout_backend_info (abfd)->add_dynamic_symbols != NULL)
252b5132 3026 {
116c20d2
NC		 3027 if (! ((*aout_backend_info (abfd)->add_dynamic_symbols)
3028 (abfd, info, &syms, &sym_count, &strings)))
b34976b6 3029 return FALSE;
252b5132
RH		 3030 }
3031
20c6e70e
MS		 3032 if (sym_count == 0)
3033 return TRUE; /* Nothing to do. */
3034
116c20d2
NC		 3035 /* We keep a list of the linker hash table entries that correspond
3036 to particular symbols. We could just look them up in the hash
3037 table, but keeping the list is more efficient. Perhaps this
3038 should be conditional on info->keep_memory. */
3039 amt = sym_count * sizeof (struct aout_link_hash_entry *);
a50b1753 3040 sym_hash = (struct aout_link_hash_entry **) bfd_alloc (abfd, amt);
20c6e70e 3041 if (sym_hash == NULL)
116c20d2
NC		 3042 return FALSE;
3043 obj_aout_sym_hashes (abfd) = sym_hash;
252b5132 3044
116c20d2
NC		 3045 add_one_symbol = aout_backend_info (abfd)->add_one_symbol;
3046 if (add_one_symbol == NULL)
3047 add_one_symbol = _bfd_generic_link_add_one_symbol;
252b5132 3048
116c20d2
NC		 3049 p = syms;
3050 pend = p + sym_count;
3051 for (; p < pend; p++, sym_hash++)
252b5132 3052 {
116c20d2 3053 int type;
252b5132 3054 const char *name;
116c20d2
NC		 3055 bfd_vma value;
3056 asection *section;
3057 flagword flags;
3058 const char *string;
252b5132 3059
116c20d2 3060 *sym_hash = NULL;
252b5132 3061
116c20d2 3062 type = H_GET_8 (abfd, p->e_type);
252b5132 3063
116c20d2
NC		 3064 /* Ignore debugging symbols. */
3065 if ((type & N_STAB) != 0)
3066 continue;
252b5132 3067
e517df3d 3068 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
531336e3 3069 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3070 return FALSE;
116c20d2
NC		 3071 name = strings + GET_WORD (abfd, p->e_strx);
3072 value = GET_WORD (abfd, p->e_value);
3073 flags = BSF_GLOBAL;
3074 string = NULL;
3075 switch (type)
252b5132 3076 {
116c20d2
NC		 3077 default:
3078 abort ();
f7c33884 3079
116c20d2
NC		 3080 case N_UNDF:
3081 case N_ABS:
3082 case N_TEXT:
3083 case N_DATA:
3084 case N_BSS:
3085 case N_FN_SEQ:
3086 case N_COMM:
3087 case N_SETV:
3088 case N_FN:
3089 /* Ignore symbols that are not externally visible. */
3090 continue;
3091 case N_INDR:
3092 /* Ignore local indirect symbol. */
3093 ++p;
3094 ++sym_hash;
3095 continue;
252b5132 3096
116c20d2
NC		 3097 case N_UNDF | N_EXT:
3098 if (value == 0)
f7c33884 3099 {
116c20d2
NC		 3100 section = bfd_und_section_ptr;
3101 flags = 0;
252b5132
RH		 3102 }
3103 else
3104 section = bfd_com_section_ptr;
3105 break;
3106 case N_ABS | N_EXT:
3107 section = bfd_abs_section_ptr;
3108 break;
3109 case N_TEXT | N_EXT:
3110 section = obj_textsec (abfd);
fd361982 3111 value -= bfd_section_vma (section);
252b5132
RH		 3112 break;
3113 case N_DATA | N_EXT:
3114 case N_SETV | N_EXT:
3115 /* Treat N_SETV symbols as N_DATA symbol; see comment in
3116 translate_from_native_sym_flags. */
3117 section = obj_datasec (abfd);
fd361982 3118 value -= bfd_section_vma (section);
252b5132
RH		 3119 break;
3120 case N_BSS | N_EXT:
3121 section = obj_bsssec (abfd);
fd361982 3122 value -= bfd_section_vma (section);
252b5132
RH		 3123 break;
3124 case N_INDR | N_EXT:
3125 /* An indirect symbol. The next symbol is the symbol
3126 which this one really is. */
39d4daf6
NC		 3127 /* See PR 20925 for a reproducer. */
3128 if (p + 1 >= pend)
3129 return FALSE;
252b5132 3130 ++p;
e517df3d 3131 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3132 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3133 return FALSE;
252b5132
RH		 3134 string = strings + GET_WORD (abfd, p->e_strx);
3135 section = bfd_ind_section_ptr;
3136 flags |= BSF_INDIRECT;
3137 break;
3138 case N_COMM | N_EXT:
3139 section = bfd_com_section_ptr;
3140 break;
3141 case N_SETA: case N_SETA | N_EXT:
3142 section = bfd_abs_section_ptr;
3143 flags |= BSF_CONSTRUCTOR;
3144 break;
3145 case N_SETT: case N_SETT | N_EXT:
3146 section = obj_textsec (abfd);
3147 flags |= BSF_CONSTRUCTOR;
fd361982 3148 value -= bfd_section_vma (section);
252b5132
RH		 3149 break;
3150 case N_SETD: case N_SETD | N_EXT:
3151 section = obj_datasec (abfd);
3152 flags |= BSF_CONSTRUCTOR;
fd361982 3153 value -= bfd_section_vma (section);
252b5132
RH		 3154 break;
3155 case N_SETB: case N_SETB | N_EXT:
3156 section = obj_bsssec (abfd);
3157 flags |= BSF_CONSTRUCTOR;
fd361982 3158 value -= bfd_section_vma (section);
252b5132
RH		 3159 break;
3160 case N_WARNING:
3161 /* A warning symbol. The next symbol is the one to warn
9f400ee9
HPN		 3162 about. If there is no next symbol, just look away. */
3163 if (p + 1 >= pend)
3164 return TRUE;
252b5132
RH		 3165 ++p;
3166 string = name;
e517df3d 3167 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3168 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3169 return FALSE;
252b5132
RH		 3170 name = strings + GET_WORD (abfd, p->e_strx);
3171 section = bfd_und_section_ptr;
3172 flags |= BSF_WARNING;
3173 break;
3174 case N_WEAKU:
3175 section = bfd_und_section_ptr;
3176 flags = BSF_WEAK;
3177 break;
3178 case N_WEAKA:
3179 section = bfd_abs_section_ptr;
3180 flags = BSF_WEAK;
3181 break;
3182 case N_WEAKT:
3183 section = obj_textsec (abfd);
fd361982 3184 value -= bfd_section_vma (section);
252b5132
RH		 3185 flags = BSF_WEAK;
3186 break;
3187 case N_WEAKD:
3188 section = obj_datasec (abfd);
fd361982 3189 value -= bfd_section_vma (section);
252b5132
RH		 3190 flags = BSF_WEAK;
3191 break;
3192 case N_WEAKB:
3193 section = obj_bsssec (abfd);
fd361982 3194 value -= bfd_section_vma (section);
252b5132
RH		 3195 flags = BSF_WEAK;
3196 break;
3197 }
3198
3199 if (! ((*add_one_symbol)
b34976b6 3200 (info, abfd, name, flags, section, value, string, copy, FALSE,
252b5132 3201 (struct bfd_link_hash_entry **) sym_hash)))
b34976b6 3202 return FALSE;
252b5132
RH		 3203
3204 /* Restrict the maximum alignment of a common symbol based on
3205 the architecture, since a.out has no way to represent
3206 alignment requirements of a section in a .o file. FIXME:
3207 This isn't quite right: it should use the architecture of the
3208 output file, not the input files. */
3209 if ((*sym_hash)->root.type == bfd_link_hash_common
3210 && ((*sym_hash)->root.u.c.p->alignment_power >
3211 bfd_get_arch_info (abfd)->section_align_power))
3212 (*sym_hash)->root.u.c.p->alignment_power =
3213 bfd_get_arch_info (abfd)->section_align_power;
3214
3215 /* If this is a set symbol, and we are not building sets, then
3216 it is possible for the hash entry to not have been set. In
3217 such a case, treat the symbol as not globally defined. */
3218 if ((*sym_hash)->root.type == bfd_link_hash_new)
3219 {
3220 BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0);
3221 *sym_hash = NULL;
3222 }
3223
3224 if (type == (N_INDR | N_EXT) || type == N_WARNING)
3225 ++sym_hash;
3226 }
3227
b34976b6 3228 return TRUE;
252b5132 3229}
252b5132 3230
116c20d2
NC		 3231/* Free up the internal symbols read from an a.out file. */
3232
3233static bfd_boolean
3234aout_link_free_symbols (bfd *abfd)
252b5132 3235{
116c20d2
NC		 3236 if (obj_aout_external_syms (abfd) != NULL)
3237 {
3238#ifdef USE_MMAP
3239 bfd_free_window (&obj_aout_sym_window (abfd));
3240#else
3241 free ((void *) obj_aout_external_syms (abfd));
3242#endif
3243 obj_aout_external_syms (abfd) = NULL;
3244 }
3245 if (obj_aout_external_strings (abfd) != NULL)
3246 {
3247#ifdef USE_MMAP
3248 bfd_free_window (&obj_aout_string_window (abfd));
3249#else
3250 free ((void *) obj_aout_external_strings (abfd));
3251#endif
3252 obj_aout_external_strings (abfd) = NULL;
3253 }
3254 return TRUE;
3255}
252b5132 3256
116c20d2 3257/* Add symbols from an a.out object file. */
252b5132 3258
116c20d2
NC		 3259static bfd_boolean
3260aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 3261{
116c20d2
NC		 3262 if (! aout_get_external_symbols (abfd))
3263 return FALSE;
3264 if (! aout_link_add_symbols (abfd, info))
3265 return FALSE;
3266 if (! info->keep_memory)
3267 {
3268 if (! aout_link_free_symbols (abfd))
3269 return FALSE;
3270 }
3271 return TRUE;
3272}
252b5132 3273
116c20d2
NC		 3274/* Look through the internal symbols to see if this object file should
3275 be included in the link. We should include this object file if it
3276 defines any symbols which are currently undefined. If this object
3277 file defines a common symbol, then we may adjust the size of the
3278 known symbol but we do not include the object file in the link
3279 (unless there is some other reason to include it). */
252b5132 3280
116c20d2
NC		 3281static bfd_boolean
3282aout_link_check_ar_symbols (bfd *abfd,
3283 struct bfd_link_info *info,
5d3236ee
DK		 3284 bfd_boolean *pneeded,
3285 bfd **subsbfd)
252b5132 3286{
116c20d2
NC		 3287 struct external_nlist *p;
3288 struct external_nlist *pend;
3289 char *strings;
252b5132 3290
116c20d2 3291 *pneeded = FALSE;
252b5132 3292
116c20d2
NC		 3293 /* Look through all the symbols. */
3294 p = obj_aout_external_syms (abfd);
3295 pend = p + obj_aout_external_sym_count (abfd);
3296 strings = obj_aout_external_strings (abfd);
3297 for (; p < pend; p++)
3298 {
3299 int type = H_GET_8 (abfd, p->e_type);
3300 const char *name;
3301 struct bfd_link_hash_entry *h;
252b5132 3302
116c20d2
NC		 3303 /* Ignore symbols that are not externally visible. This is an
3304 optimization only, as we check the type more thoroughly
3305 below. */
3306 if (((type & N_EXT) == 0
3307 || (type & N_STAB) != 0
3308 || type == N_FN)
3309 && type != N_WEAKA
3310 && type != N_WEAKT
3311 && type != N_WEAKD
3312 && type != N_WEAKB)
3313 {
3314 if (type == N_WARNING
3315 || type == N_INDR)
3316 ++p;
3317 continue;
3318 }
3319
3320 name = strings + GET_WORD (abfd, p->e_strx);
3321 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
3322
3323 /* We are only interested in symbols that are currently
3324 undefined or common. */
3325 if (h == NULL
3326 || (h->type != bfd_link_hash_undefined
3327 && h->type != bfd_link_hash_common))
3328 {
3329 if (type == (N_INDR | N_EXT))
3330 ++p;
3331 continue;
3332 }
3333
3334 if (type == (N_TEXT | N_EXT)
3335 || type == (N_DATA | N_EXT)
3336 || type == (N_BSS | N_EXT)
3337 || type == (N_ABS | N_EXT)
3338 || type == (N_INDR | N_EXT))
3339 {
3340 /* This object file defines this symbol. We must link it
3341 in. This is true regardless of whether the current
3342 definition of the symbol is undefined or common.
3343
07d6d2b8 3344 If the current definition is common, we have a case in
116c20d2 3345 which we have already seen an object file including:
07d6d2b8 3346 int a;
116c20d2 3347 and this object file from the archive includes:
07d6d2b8 3348 int a = 5;
116c20d2 3349 In such a case, whether to include this object is target
07d6d2b8 3350 dependant for backward compatibility.
116c20d2
NC		 3351
3352 FIXME: The SunOS 4.1.3 linker will pull in the archive
3353 element if the symbol is defined in the .data section,
3354 but not if it is defined in the .text section. That
3355 seems a bit crazy to me, and it has not been implemented
3356 yet. However, it might be correct. */
3357 if (h->type == bfd_link_hash_common)
3358 {
3359 int skip = 0;
3360
f88dc410 3361 switch (info->common_skip_ar_symbols)
116c20d2 3362 {
a78eea16
AM		 3363 case bfd_link_common_skip_none:
3364 break;
116c20d2
NC		 3365 case bfd_link_common_skip_text:
3366 skip = (type == (N_TEXT | N_EXT));
3367 break;
3368 case bfd_link_common_skip_data:
3369 skip = (type == (N_DATA | N_EXT));
3370 break;
116c20d2
NC		 3371 case bfd_link_common_skip_all:
3372 skip = 1;
3373 break;
3374 }
3375
3376 if (skip)
3377 continue;
3378 }
3379
0e144ba7
AM		 3380 if (!(*info->callbacks
3381 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3382 return FALSE;
3383 *pneeded = TRUE;
3384 return TRUE;
3385 }
3386
3387 if (type == (N_UNDF | N_EXT))
3388 {
3389 bfd_vma value;
3390
3391 value = GET_WORD (abfd, p->e_value);
3392 if (value != 0)
3393 {
3394 /* This symbol is common in the object from the archive
3395 file. */
3396 if (h->type == bfd_link_hash_undefined)
3397 {
3398 bfd *symbfd;
3399 unsigned int power;
3400
3401 symbfd = h->u.undef.abfd;
3402 if (symbfd == NULL)
3403 {
3404 /* This symbol was created as undefined from
3405 outside BFD. We assume that we should link
3406 in the object file. This is done for the -u
3407 option in the linker. */
0e144ba7
AM		 3408 if (!(*info->callbacks
3409 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3410 return FALSE;
3411 *pneeded = TRUE;
3412 return TRUE;
3413 }
3414 /* Turn the current link symbol into a common
3415 symbol. It is already on the undefs list. */
3416 h->type = bfd_link_hash_common;
a50b1753 3417 h->u.c.p = (struct bfd_link_hash_common_entry *)
0e144ba7
AM		 3418 bfd_hash_allocate (&info->hash->table,
3419 sizeof (struct bfd_link_hash_common_entry));
116c20d2
NC		 3420 if (h->u.c.p == NULL)
3421 return FALSE;
3422
3423 h->u.c.size = value;
3424
3425 /* FIXME: This isn't quite right. The maximum
3426 alignment of a common symbol should be set by the
3427 architecture of the output file, not of the input
3428 file. */
3429 power = bfd_log2 (value);
3430 if (power > bfd_get_arch_info (abfd)->section_align_power)
3431 power = bfd_get_arch_info (abfd)->section_align_power;
3432 h->u.c.p->alignment_power = power;
3433
3434 h->u.c.p->section = bfd_make_section_old_way (symbfd,
3435 "COMMON");
3436 }
3437 else
3438 {
3439 /* Adjust the size of the common symbol if
3440 necessary. */
3441 if (value > h->u.c.size)
3442 h->u.c.size = value;
3443 }
3444 }
3445 }
3446
3447 if (type == N_WEAKA
3448 || type == N_WEAKT
3449 || type == N_WEAKD
3450 || type == N_WEAKB)
3451 {
3452 /* This symbol is weak but defined. We must pull it in if
3453 the current link symbol is undefined, but we don't want
3454 it if the current link symbol is common. */
3455 if (h->type == bfd_link_hash_undefined)
3456 {
0e144ba7
AM		 3457 if (!(*info->callbacks
3458 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3459 return FALSE;
3460 *pneeded = TRUE;
3461 return TRUE;
3462 }
3463 }
3464 }
3465
3466 /* We do not need this object file. */
3467 return TRUE;
3468}
3469/* Check a single archive element to see if we need to include it in
3470 the link. *PNEEDED is set according to whether this element is
3471 needed in the link or not. This is called from
3472 _bfd_generic_link_add_archive_symbols. */
3473
3474static bfd_boolean
3475aout_link_check_archive_element (bfd *abfd,
3476 struct bfd_link_info *info,
13e570f8
AM		 3477 struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
3478 const char *name ATTRIBUTE_UNUSED,
116c20d2
NC		 3479 bfd_boolean *pneeded)
3480{
0e144ba7
AM		 3481 bfd *oldbfd;
3482 bfd_boolean needed;
5d3236ee 3483
0e144ba7 3484 if (!aout_get_external_symbols (abfd))
116c20d2
NC		 3485 return FALSE;
3486
0e144ba7
AM		 3487 oldbfd = abfd;
3488 if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd))
116c20d2
NC		 3489 return FALSE;
3490
0e144ba7
AM		 3491 needed = *pneeded;
3492 if (needed)
116c20d2 3493 {
5d3236ee
DK		 3494 /* Potentially, the add_archive_element hook may have set a
3495 substitute BFD for us. */
0e144ba7
AM		 3496 if (abfd != oldbfd)
3497 {
3498 if (!info->keep_memory
3499 && !aout_link_free_symbols (oldbfd))
3500 return FALSE;
3501 if (!aout_get_external_symbols (abfd))
3502 return FALSE;
3503 }
3504 if (!aout_link_add_symbols (abfd, info))
116c20d2
NC		 3505 return FALSE;
3506 }
3507
0e144ba7 3508 if (!info->keep_memory || !needed)
116c20d2 3509 {
0e144ba7 3510 if (!aout_link_free_symbols (abfd))
116c20d2
NC		 3511 return FALSE;
3512 }
3513
3514 return TRUE;
3515}
3516
3517/* Given an a.out BFD, add symbols to the global hash table as
3518 appropriate. */
3519
3520bfd_boolean
3521NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
3522{
3523 switch (bfd_get_format (abfd))
3524 {
3525 case bfd_object:
3526 return aout_link_add_object_symbols (abfd, info);
3527 case bfd_archive:
3528 return _bfd_generic_link_add_archive_symbols
3529 (abfd, info, aout_link_check_archive_element);
3530 default:
3531 bfd_set_error (bfd_error_wrong_format);
3532 return FALSE;
3533 }
3534}
3535\f
3536/* A hash table used for header files with N_BINCL entries. */
3537
3538struct aout_link_includes_table
3539{
3540 struct bfd_hash_table root;
3541};
3542
3543/* A linked list of totals that we have found for a particular header
3544 file. */
3545
3546struct aout_link_includes_totals
3547{
3548 struct aout_link_includes_totals *next;
3549 bfd_vma total;
3550};
3551
3552/* An entry in the header file hash table. */
3553
3554struct aout_link_includes_entry
3555{
3556 struct bfd_hash_entry root;
3557 /* List of totals we have found for this file. */
3558 struct aout_link_includes_totals *totals;
3559};
3560
3561/* Look up an entry in an the header file hash table. */
3562
3563#define aout_link_includes_lookup(table, string, create, copy) \
3564 ((struct aout_link_includes_entry *) \
3565 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
3566
3567/* During the final link step we need to pass around a bunch of
3568 information, so we do it in an instance of this structure. */
3569
3570struct aout_final_link_info
3571{
3572 /* General link information. */
3573 struct bfd_link_info *info;
3574 /* Output bfd. */
252b5132
RH		 3575 bfd *output_bfd;
3576 /* Reloc file positions. */
3577 file_ptr treloff, dreloff;
3578 /* File position of symbols. */
3579 file_ptr symoff;
3580 /* String table. */
3581 struct bfd_strtab_hash *strtab;
3582 /* Header file hash table. */
3583 struct aout_link_includes_table includes;
3584 /* A buffer large enough to hold the contents of any section. */
3585 bfd_byte *contents;
3586 /* A buffer large enough to hold the relocs of any section. */
116c20d2 3587 void * relocs;
252b5132
RH		 3588 /* A buffer large enough to hold the symbol map of any input BFD. */
3589 int *symbol_map;
3590 /* A buffer large enough to hold output symbols of any input BFD. */
3591 struct external_nlist *output_syms;
3592};
3593
252b5132
RH		 3594/* The function to create a new entry in the header file hash table. */
3595
3596static struct bfd_hash_entry *
116c20d2
NC		 3597aout_link_includes_newfunc (struct bfd_hash_entry *entry,
3598 struct bfd_hash_table *table,
3599 const char *string)
252b5132
RH		 3600{
3601 struct aout_link_includes_entry *ret =
3602 (struct aout_link_includes_entry *) entry;
3603
3604 /* Allocate the structure if it has not already been allocated by a
3605 subclass. */
116c20d2 3606 if (ret == NULL)
a50b1753 3607 ret = (struct aout_link_includes_entry *)
07d6d2b8 3608 bfd_hash_allocate (table, sizeof (* ret));
116c20d2
NC		 3609 if (ret == NULL)
3610 return NULL;
252b5132
RH		 3611
3612 /* Call the allocation method of the superclass. */
3613 ret = ((struct aout_link_includes_entry *)
3614 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
3615 if (ret)
3616 {
3617 /* Set local fields. */
3618 ret->totals = NULL;
3619 }
3620
3621 return (struct bfd_hash_entry *) ret;
3622}
3623
116c20d2
NC		 3624/* Write out a symbol that was not associated with an a.out input
3625 object. */
252b5132 3626
116c20d2 3627static bfd_boolean
7686d77d 3628aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data)
252b5132 3629{
7686d77d 3630 struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh;
57402f1e 3631 struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data;
116c20d2
NC		 3632 bfd *output_bfd;
3633 int type;
3634 bfd_vma val;
3635 struct external_nlist outsym;
3636 bfd_size_type indx;
3637 bfd_size_type amt;
252b5132 3638
116c20d2
NC		 3639 if (h->root.type == bfd_link_hash_warning)
3640 {
3641 h = (struct aout_link_hash_entry *) h->root.u.i.link;
3642 if (h->root.type == bfd_link_hash_new)
3643 return TRUE;
3644 }
252b5132 3645
57402f1e 3646 output_bfd = flaginfo->output_bfd;
252b5132 3647
116c20d2 3648 if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
252b5132 3649 {
116c20d2 3650 if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
57402f1e 3651 (output_bfd, flaginfo->info, h)))
252b5132 3652 {
116c20d2
NC		 3653 /* FIXME: No way to handle errors. */
3654 abort ();
252b5132 3655 }
116c20d2 3656 }
252b5132 3657
116c20d2
NC		 3658 if (h->written)
3659 return TRUE;
252b5132 3660
116c20d2 3661 h->written = TRUE;
252b5132 3662
116c20d2
NC		 3663 /* An indx of -2 means the symbol must be written. */
3664 if (h->indx != -2
57402f1e
NC		 3665 && (flaginfo->info->strip == strip_all
3666 || (flaginfo->info->strip == strip_some
3667 && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string,
116c20d2
NC		 3668 FALSE, FALSE) == NULL)))
3669 return TRUE;
252b5132 3670
116c20d2 3671 switch (h->root.type)
252b5132 3672 {
116c20d2
NC		 3673 default:
3674 case bfd_link_hash_warning:
3675 abort ();
3676 /* Avoid variable not initialized warnings. */
3677 return TRUE;
3678 case bfd_link_hash_new:
3679 /* This can happen for set symbols when sets are not being
07d6d2b8 3680 built. */
116c20d2
NC		 3681 return TRUE;
3682 case bfd_link_hash_undefined:
3683 type = N_UNDF | N_EXT;
3684 val = 0;
3685 break;
3686 case bfd_link_hash_defined:
3687 case bfd_link_hash_defweak:
3688 {
3689 asection *sec;
252b5132 3690
116c20d2
NC		 3691 sec = h->root.u.def.section->output_section;
3692 BFD_ASSERT (bfd_is_abs_section (sec)
3693 || sec->owner == output_bfd);
3694 if (sec == obj_textsec (output_bfd))
3695 type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
3696 else if (sec == obj_datasec (output_bfd))
3697 type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
3698 else if (sec == obj_bsssec (output_bfd))
3699 type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
3700 else
3701 type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
3702 type |= N_EXT;
3703 val = (h->root.u.def.value
3704 + sec->vma
3705 + h->root.u.def.section->output_offset);
3706 }
3707 break;
3708 case bfd_link_hash_common:
3709 type = N_UNDF | N_EXT;
3710 val = h->root.u.c.size;
3711 break;
3712 case bfd_link_hash_undefweak:
3713 type = N_WEAKU;
3714 val = 0;
c38eb2a6 3715 break;
116c20d2
NC		 3716 case bfd_link_hash_indirect:
3717 /* We ignore these symbols, since the indirected symbol is
3718 already in the hash table. */
3719 return TRUE;
3720 }
252b5132 3721
116c20d2
NC		 3722 H_PUT_8 (output_bfd, type, outsym.e_type);
3723 H_PUT_8 (output_bfd, 0, outsym.e_other);
3724 H_PUT_16 (output_bfd, 0, outsym.e_desc);
57402f1e 3725 indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string,
116c20d2
NC		 3726 FALSE);
3727 if (indx == - (bfd_size_type) 1)
3728 /* FIXME: No way to handle errors. */
3729 abort ();
252b5132 3730
116c20d2
NC		 3731 PUT_WORD (output_bfd, indx, outsym.e_strx);
3732 PUT_WORD (output_bfd, val, outsym.e_value);
252b5132 3733
116c20d2 3734 amt = EXTERNAL_NLIST_SIZE;
57402f1e 3735 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0
116c20d2
NC		 3736 || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt)
3737 /* FIXME: No way to handle errors. */
3738 abort ();
252b5132 3739
57402f1e 3740 flaginfo->symoff += EXTERNAL_NLIST_SIZE;
116c20d2
NC		 3741 h->indx = obj_aout_external_sym_count (output_bfd);
3742 ++obj_aout_external_sym_count (output_bfd);
252b5132 3743
116c20d2
NC		 3744 return TRUE;
3745}
252b5132 3746
116c20d2 3747/* Handle a link order which is supposed to generate a reloc. */
252b5132 3748
116c20d2 3749static bfd_boolean
57402f1e 3750aout_link_reloc_link_order (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3751 asection *o,
3752 struct bfd_link_order *p)
3753{
3754 struct bfd_link_order_reloc *pr;
3755 int r_index;
3756 int r_extern;
3757 reloc_howto_type *howto;
3758 file_ptr *reloff_ptr = NULL;
3759 struct reloc_std_external srel;
3760 struct reloc_ext_external erel;
3761 void * rel_ptr;
3762 bfd_size_type amt;
252b5132 3763
116c20d2 3764 pr = p->u.reloc.p;
252b5132 3765
116c20d2
NC		 3766 if (p->type == bfd_section_reloc_link_order)
3767 {
3768 r_extern = 0;
3769 if (bfd_is_abs_section (pr->u.section))
3770 r_index = N_ABS | N_EXT;
3771 else
3772 {
57402f1e 3773 BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd);
116c20d2
NC		 3774 r_index = pr->u.section->target_index;
3775 }
3776 }
3777 else
3778 {
3779 struct aout_link_hash_entry *h;
252b5132 3780
116c20d2
NC		 3781 BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
3782 r_extern = 1;
3783 h = ((struct aout_link_hash_entry *)
57402f1e 3784 bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info,
116c20d2
NC		 3785 pr->u.name, FALSE, FALSE, TRUE));
3786 if (h != NULL
3787 && h->indx >= 0)
3788 r_index = h->indx;
3789 else if (h != NULL)
3790 {
3791 /* We decided to strip this symbol, but it turns out that we
3792 can't. Note that we lose the other and desc information
3793 here. I don't think that will ever matter for a global
3794 symbol. */
3795 h->indx = -2;
3796 h->written = FALSE;
57402f1e 3797 if (!aout_link_write_other_symbol (&h->root.root, flaginfo))
116c20d2
NC		 3798 return FALSE;
3799 r_index = h->indx;
3800 }
3801 else
3802 {
1a72702b
AM		 3803 (*flaginfo->info->callbacks->unattached_reloc)
3804 (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0);
116c20d2
NC		 3805 r_index = 0;
3806 }
3807 }
252b5132 3808
57402f1e 3809 howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc);
116c20d2 3810 if (howto == 0)
252b5132 3811 {
116c20d2
NC		 3812 bfd_set_error (bfd_error_bad_value);
3813 return FALSE;
252b5132
RH		 3814 }
3815
57402f1e
NC		 3816 if (o == obj_textsec (flaginfo->output_bfd))
3817 reloff_ptr = &flaginfo->treloff;
3818 else if (o == obj_datasec (flaginfo->output_bfd))
3819 reloff_ptr = &flaginfo->dreloff;
116c20d2
NC		 3820 else
3821 abort ();
3822
57402f1e 3823 if (obj_reloc_entry_size (flaginfo->output_bfd) == RELOC_STD_SIZE)
252b5132 3824 {
116c20d2 3825#ifdef MY_put_reloc
57402f1e 3826 MY_put_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset, howto,
116c20d2
NC		 3827 &srel);
3828#else
3829 {
3830 int r_pcrel;
3831 int r_baserel;
3832 int r_jmptable;
3833 int r_relative;
3834 int r_length;
252b5132 3835
116c20d2
NC		 3836 r_pcrel = (int) howto->pc_relative;
3837 r_baserel = (howto->type & 8) != 0;
3838 r_jmptable = (howto->type & 16) != 0;
3839 r_relative = (howto->type & 32) != 0;
3840 r_length = howto->size;
252b5132 3841
57402f1e
NC		 3842 PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address);
3843 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3844 {
3845 srel.r_index[0] = r_index >> 16;
3846 srel.r_index[1] = r_index >> 8;
3847 srel.r_index[2] = r_index;
3848 srel.r_type[0] =
3849 ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
3850 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
3851 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
3852 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
3853 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
3854 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
3855 }
3856 else
3857 {
3858 srel.r_index[2] = r_index >> 16;
3859 srel.r_index[1] = r_index >> 8;
3860 srel.r_index[0] = r_index;
3861 srel.r_type[0] =
3862 ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
3863 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
3864 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
3865 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
3866 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
3867 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
3868 }
3869 }
3870#endif
3871 rel_ptr = (void *) &srel;
252b5132 3872
116c20d2
NC		 3873 /* We have to write the addend into the object file, since
3874 standard a.out relocs are in place. It would be more
3875 reliable if we had the current contents of the file here,
3876 rather than assuming zeroes, but we can't read the file since
3877 it was opened using bfd_openw. */
3878 if (pr->addend != 0)
252b5132 3879 {
116c20d2
NC		 3880 bfd_size_type size;
3881 bfd_reloc_status_type r;
3882 bfd_byte *buf;
3883 bfd_boolean ok;
3884
3885 size = bfd_get_reloc_size (howto);
a50b1753 3886 buf = (bfd_byte *) bfd_zmalloc (size);
6346d5ca 3887 if (buf == NULL && size != 0)
116c20d2 3888 return FALSE;
57402f1e 3889 r = MY_relocate_contents (howto, flaginfo->output_bfd,
116c20d2
NC		 3890 (bfd_vma) pr->addend, buf);
3891 switch (r)
252b5132 3892 {
116c20d2
NC		 3893 case bfd_reloc_ok:
3894 break;
3895 default:
3896 case bfd_reloc_outofrange:
3897 abort ();
3898 case bfd_reloc_overflow:
1a72702b
AM		 3899 (*flaginfo->info->callbacks->reloc_overflow)
3900 (flaginfo->info, NULL,
3901 (p->type == bfd_section_reloc_link_order
fd361982 3902 ? bfd_section_name (pr->u.section)
1a72702b
AM		 3903 : pr->u.name),
3904 howto->name, pr->addend, NULL, NULL, (bfd_vma) 0);
116c20d2 3905 break;
252b5132 3906 }
57402f1e 3907 ok = bfd_set_section_contents (flaginfo->output_bfd, o, (void *) buf,
116c20d2
NC		 3908 (file_ptr) p->offset, size);
3909 free (buf);
3910 if (! ok)
3911 return FALSE;
252b5132
RH		 3912 }
3913 }
116c20d2 3914 else
252b5132 3915 {
116c20d2 3916#ifdef MY_put_ext_reloc
57402f1e 3917 MY_put_ext_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset,
116c20d2
NC		 3918 howto, &erel, pr->addend);
3919#else
57402f1e 3920 PUT_WORD (flaginfo->output_bfd, p->offset, erel.r_address);
252b5132 3921
57402f1e 3922 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3923 {
3924 erel.r_index[0] = r_index >> 16;
3925 erel.r_index[1] = r_index >> 8;
3926 erel.r_index[2] = r_index;
3927 erel.r_type[0] =
3928 ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
3929 | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG));
3930 }
3931 else
3932 {
3933 erel.r_index[2] = r_index >> 16;
3934 erel.r_index[1] = r_index >> 8;
3935 erel.r_index[0] = r_index;
3936 erel.r_type[0] =
3937 (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
3938 | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
3939 }
252b5132 3940
57402f1e 3941 PUT_WORD (flaginfo->output_bfd, (bfd_vma) pr->addend, erel.r_addend);
116c20d2 3942#endif /* MY_put_ext_reloc */
252b5132 3943
116c20d2 3944 rel_ptr = (void *) &erel;
252b5132 3945 }
252b5132 3946
57402f1e
NC		 3947 amt = obj_reloc_entry_size (flaginfo->output_bfd);
3948 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
3949 || bfd_bwrite (rel_ptr, amt, flaginfo->output_bfd) != amt)
116c20d2 3950 return FALSE;
252b5132 3951
57402f1e 3952 *reloff_ptr += obj_reloc_entry_size (flaginfo->output_bfd);
252b5132 3953
116c20d2
NC		 3954 /* Assert that the relocs have not run into the symbols, and that n
3955 the text relocs have not run into the data relocs. */
57402f1e
NC		 3956 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
3957 && (reloff_ptr != &flaginfo->treloff
116c20d2 3958 || (*reloff_ptr
57402f1e 3959 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 3960
3961 return TRUE;
252b5132
RH		 3962}
3963
116c20d2 3964/* Get the section corresponding to a reloc index. */
252b5132 3965
116c20d2
NC		 3966static INLINE asection *
3967aout_reloc_index_to_section (bfd *abfd, int indx)
252b5132 3968{
116c20d2 3969 switch (indx & N_TYPE)
252b5132 3970 {
116c20d2
NC		 3971 case N_TEXT: return obj_textsec (abfd);
3972 case N_DATA: return obj_datasec (abfd);
3973 case N_BSS: return obj_bsssec (abfd);
3974 case N_ABS:
3975 case N_UNDF: return bfd_abs_section_ptr;
3976 default: abort ();
252b5132 3977 }
116c20d2 3978 return NULL;
252b5132
RH		 3979}
3980
116c20d2 3981/* Relocate an a.out section using standard a.out relocs. */
252b5132 3982
b34976b6 3983static bfd_boolean
57402f1e 3984aout_link_input_section_std (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3985 bfd *input_bfd,
3986 asection *input_section,
3987 struct reloc_std_external *relocs,
3988 bfd_size_type rel_size,
3989 bfd_byte *contents)
252b5132 3990{
116c20d2
NC		 3991 bfd_boolean (*check_dynamic_reloc)
3992 (struct bfd_link_info *, bfd *, asection *,
3993 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
3994 bfd_vma *);
252b5132 3995 bfd *output_bfd;
116c20d2
NC		 3996 bfd_boolean relocatable;
3997 struct external_nlist *syms;
252b5132 3998 char *strings;
116c20d2 3999 struct aout_link_hash_entry **sym_hashes;
252b5132 4000 int *symbol_map;
116c20d2
NC		 4001 bfd_size_type reloc_count;
4002 struct reloc_std_external *rel;
4003 struct reloc_std_external *rel_end;
252b5132 4004
57402f1e 4005 output_bfd = flaginfo->output_bfd;
116c20d2 4006 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
252b5132 4007
116c20d2
NC		 4008 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE);
4009 BFD_ASSERT (input_bfd->xvec->header_byteorder
4010 == output_bfd->xvec->header_byteorder);
252b5132 4011
0e1862bb 4012 relocatable = bfd_link_relocatable (flaginfo->info);
116c20d2
NC		 4013 syms = obj_aout_external_syms (input_bfd);
4014 strings = obj_aout_external_strings (input_bfd);
4015 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4016 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4017
4018 reloc_count = rel_size / RELOC_STD_SIZE;
4019 rel = relocs;
4020 rel_end = rel + reloc_count;
4021 for (; rel < rel_end; rel++)
252b5132 4022 {
116c20d2
NC		 4023 bfd_vma r_addr;
4024 int r_index;
4025 int r_extern;
4026 int r_pcrel;
4027 int r_baserel = 0;
4028 reloc_howto_type *howto;
4029 struct aout_link_hash_entry *h = NULL;
4030 bfd_vma relocation;
4031 bfd_reloc_status_type r;
252b5132 4032
116c20d2 4033 r_addr = GET_SWORD (input_bfd, rel->r_address);
252b5132 4034
116c20d2
NC		 4035#ifdef MY_reloc_howto
4036 howto = MY_reloc_howto (input_bfd, rel, r_index, r_extern, r_pcrel);
4037#else
4038 {
4039 int r_jmptable;
4040 int r_relative;
4041 int r_length;
4042 unsigned int howto_idx;
252b5132 4043
116c20d2
NC		 4044 if (bfd_header_big_endian (input_bfd))
4045 {
4046 r_index = (((unsigned int) rel->r_index[0] << 16)
4047 | ((unsigned int) rel->r_index[1] << 8)
4048 | rel->r_index[2]);
4049 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
4050 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
4051 r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
4052 r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
4053 r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
4054 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
4055 >> RELOC_STD_BITS_LENGTH_SH_BIG);
4056 }
4057 else
4058 {
4059 r_index = (((unsigned int) rel->r_index[2] << 16)
4060 | ((unsigned int) rel->r_index[1] << 8)
4061 | rel->r_index[0]);
4062 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
4063 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
4064 r_baserel = (0 != (rel->r_type[0]
4065 & RELOC_STD_BITS_BASEREL_LITTLE));
4066 r_jmptable= (0 != (rel->r_type[0]
4067 & RELOC_STD_BITS_JMPTABLE_LITTLE));
4068 r_relative= (0 != (rel->r_type[0]
4069 & RELOC_STD_BITS_RELATIVE_LITTLE));
4070 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
4071 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
4072 }
252b5132 4073
116c20d2
NC		 4074 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
4075 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 4076 if (howto_idx < TABLE_SIZE (howto_table_std))
4077 howto = howto_table_std + howto_idx;
4078 else
4079 howto = NULL;
116c20d2
NC		 4080 }
4081#endif
252b5132 4082
ad756e3f
AM		 4083 if (howto == NULL)
4084 {
0aa13fee
AM		 4085 _bfd_error_handler (_("%pB: unsupported relocation type"),
4086 input_bfd);
ad756e3f
AM		 4087 bfd_set_error (bfd_error_bad_value);
4088 return FALSE;
4089 }
4090
116c20d2 4091 if (relocatable)
252b5132 4092 {
116c20d2
NC		 4093 /* We are generating a relocatable output file, and must
4094 modify the reloc accordingly. */
4095 if (r_extern)
252b5132 4096 {
116c20d2
NC		 4097 /* If we know the symbol this relocation is against,
4098 convert it into a relocation against a section. This
4099 is what the native linker does. */
4100 h = sym_hashes[r_index];
4101 if (h != NULL
4102 && (h->root.type == bfd_link_hash_defined
4103 || h->root.type == bfd_link_hash_defweak))
252b5132 4104 {
252b5132
RH		 4105 asection *output_section;
4106
116c20d2
NC		 4107 /* Change the r_extern value. */
4108 if (bfd_header_big_endian (output_bfd))
4109 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_BIG;
4110 else
4111 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE;
252b5132 4112
116c20d2
NC		 4113 /* Compute a new r_index. */
4114 output_section = h->root.u.def.section->output_section;
252b5132 4115 if (output_section == obj_textsec (output_bfd))
116c20d2 4116 r_index = N_TEXT;
252b5132 4117 else if (output_section == obj_datasec (output_bfd))
116c20d2 4118 r_index = N_DATA;
252b5132 4119 else if (output_section == obj_bsssec (output_bfd))
116c20d2 4120 r_index = N_BSS;
252b5132 4121 else
116c20d2 4122 r_index = N_ABS;
252b5132 4123
116c20d2
NC		 4124 /* Add the symbol value and the section VMA to the
4125 addend stored in the contents. */
4126 relocation = (h->root.u.def.value
4127 + output_section->vma
4128 + h->root.u.def.section->output_offset);
252b5132 4129 }
116c20d2 4130 else
252b5132 4131 {
116c20d2
NC		 4132 /* We must change r_index according to the symbol
4133 map. */
4134 r_index = symbol_map[r_index];
252b5132 4135
116c20d2 4136 if (r_index == -1)
252b5132 4137 {
116c20d2 4138 if (h != NULL)
252b5132 4139 {
116c20d2 4140 /* We decided to strip this symbol, but it
07d6d2b8
AM		 4141 turns out that we can't. Note that we
4142 lose the other and desc information here.
4143 I don't think that will ever matter for a
4144 global symbol. */
116c20d2 4145 if (h->indx < 0)
252b5132 4146 {
116c20d2
NC		 4147 h->indx = -2;
4148 h->written = FALSE;
7686d77d 4149 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4150 flaginfo))
116c20d2 4151 return FALSE;
252b5132 4152 }
116c20d2
NC		 4153 r_index = h->indx;
4154 }
4155 else
4156 {
4157 const char *name;
4158
4159 name = strings + GET_WORD (input_bfd,
4160 syms[r_index].e_strx);
1a72702b
AM		 4161 (*flaginfo->info->callbacks->unattached_reloc)
4162 (flaginfo->info, name,
4163 input_bfd, input_section, r_addr);
116c20d2 4164 r_index = 0;
252b5132
RH		 4165 }
4166 }
116c20d2
NC		 4167
4168 relocation = 0;
252b5132
RH		 4169 }
4170
116c20d2
NC		 4171 /* Write out the new r_index value. */
4172 if (bfd_header_big_endian (output_bfd))
252b5132 4173 {
116c20d2
NC		 4174 rel->r_index[0] = r_index >> 16;
4175 rel->r_index[1] = r_index >> 8;
4176 rel->r_index[2] = r_index;
252b5132
RH		 4177 }
4178 else
4179 {
116c20d2
NC		 4180 rel->r_index[2] = r_index >> 16;
4181 rel->r_index[1] = r_index >> 8;
4182 rel->r_index[0] = r_index;
252b5132
RH		 4183 }
4184 }
252b5132 4185 else
116c20d2
NC		 4186 {
4187 asection *section;
252b5132 4188
116c20d2
NC		 4189 /* This is a relocation against a section. We must
4190 adjust by the amount that the section moved. */
4191 section = aout_reloc_index_to_section (input_bfd, r_index);
4192 relocation = (section->output_section->vma
4193 + section->output_offset
4194 - section->vma);
4195 }
252b5132 4196
116c20d2
NC		 4197 /* Change the address of the relocation. */
4198 PUT_WORD (output_bfd,
4199 r_addr + input_section->output_offset,
4200 rel->r_address);
252b5132 4201
116c20d2
NC		 4202 /* Adjust a PC relative relocation by removing the reference
4203 to the original address in the section and including the
4204 reference to the new address. */
4205 if (r_pcrel)
4206 relocation -= (input_section->output_section->vma
4207 + input_section->output_offset
4208 - input_section->vma);
e92d460e 4209
116c20d2
NC		 4210#ifdef MY_relocatable_reloc
4211 MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
4212#endif
252b5132 4213
116c20d2
NC		 4214 if (relocation == 0)
4215 r = bfd_reloc_ok;
4216 else
4217 r = MY_relocate_contents (howto,
4218 input_bfd, relocation,
4219 contents + r_addr);
252b5132 4220 }
116c20d2
NC		 4221 else
4222 {
4223 bfd_boolean hundef;
252b5132 4224
116c20d2
NC		 4225 /* We are generating an executable, and must do a full
4226 relocation. */
4227 hundef = FALSE;
252b5132 4228
116c20d2
NC		 4229 if (r_extern)
4230 {
4231 h = sym_hashes[r_index];
252b5132 4232
116c20d2
NC		 4233 if (h != NULL
4234 && (h->root.type == bfd_link_hash_defined
4235 || h->root.type == bfd_link_hash_defweak))
4236 {
4237 relocation = (h->root.u.def.value
4238 + h->root.u.def.section->output_section->vma
4239 + h->root.u.def.section->output_offset);
4240 }
4241 else if (h != NULL
4242 && h->root.type == bfd_link_hash_undefweak)
4243 relocation = 0;
4244 else
4245 {
4246 hundef = TRUE;
4247 relocation = 0;
4248 }
4249 }
4250 else
4251 {
4252 asection *section;
252b5132 4253
116c20d2
NC		 4254 section = aout_reloc_index_to_section (input_bfd, r_index);
4255 relocation = (section->output_section->vma
4256 + section->output_offset
4257 - section->vma);
4258 if (r_pcrel)
4259 relocation += input_section->vma;
4260 }
252b5132 4261
116c20d2
NC		 4262 if (check_dynamic_reloc != NULL)
4263 {
4264 bfd_boolean skip;
252b5132 4265
116c20d2 4266 if (! ((*check_dynamic_reloc)
57402f1e 4267 (flaginfo->info, input_bfd, input_section, h,
116c20d2
NC		 4268 (void *) rel, contents, &skip, &relocation)))
4269 return FALSE;
4270 if (skip)
4271 continue;
4272 }
252b5132 4273
116c20d2 4274 /* Now warn if a global symbol is undefined. We could not
07d6d2b8
AM		 4275 do this earlier, because check_dynamic_reloc might want
4276 to skip this reloc. */
0e1862bb 4277 if (hundef && ! bfd_link_pic (flaginfo->info) && ! r_baserel)
116c20d2
NC		 4278 {
4279 const char *name;
252b5132 4280
116c20d2
NC		 4281 if (h != NULL)
4282 name = h->root.root.string;
4283 else
4284 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4285 (*flaginfo->info->callbacks->undefined_symbol)
4286 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
116c20d2 4287 }
252b5132 4288
116c20d2
NC		 4289 r = MY_final_link_relocate (howto,
4290 input_bfd, input_section,
4291 contents, r_addr, relocation,
4292 (bfd_vma) 0);
252b5132 4293 }
252b5132 4294
116c20d2
NC		 4295 if (r != bfd_reloc_ok)
4296 {
4297 switch (r)
4298 {
4299 default:
4300 case bfd_reloc_outofrange:
4301 abort ();
4302 case bfd_reloc_overflow:
4303 {
4304 const char *name;
252b5132 4305
116c20d2
NC		 4306 if (h != NULL)
4307 name = NULL;
4308 else if (r_extern)
4309 name = strings + GET_WORD (input_bfd,
4310 syms[r_index].e_strx);
4311 else
4312 {
4313 asection *s;
252b5132 4314
116c20d2 4315 s = aout_reloc_index_to_section (input_bfd, r_index);
fd361982 4316 name = bfd_section_name (s);
116c20d2 4317 }
1a72702b
AM		 4318 (*flaginfo->info->callbacks->reloc_overflow)
4319 (flaginfo->info, (h ? &h->root : NULL), name, howto->name,
4320 (bfd_vma) 0, input_bfd, input_section, r_addr);
116c20d2
NC		 4321 }
4322 break;
4323 }
4324 }
252b5132
RH		 4325 }
4326
b34976b6 4327 return TRUE;
252b5132
RH		 4328}
4329
116c20d2 4330/* Relocate an a.out section using extended a.out relocs. */
252b5132 4331
b34976b6 4332static bfd_boolean
57402f1e 4333aout_link_input_section_ext (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4334 bfd *input_bfd,
4335 asection *input_section,
4336 struct reloc_ext_external *relocs,
4337 bfd_size_type rel_size,
4338 bfd_byte *contents)
252b5132 4339{
b34976b6 4340 bfd_boolean (*check_dynamic_reloc)
116c20d2
NC		 4341 (struct bfd_link_info *, bfd *, asection *,
4342 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
4343 bfd_vma *);
252b5132 4344 bfd *output_bfd;
1049f94e 4345 bfd_boolean relocatable;
252b5132
RH		 4346 struct external_nlist *syms;
4347 char *strings;
4348 struct aout_link_hash_entry **sym_hashes;
4349 int *symbol_map;
4350 bfd_size_type reloc_count;
116c20d2
NC		 4351 struct reloc_ext_external *rel;
4352 struct reloc_ext_external *rel_end;
252b5132 4353
57402f1e 4354 output_bfd = flaginfo->output_bfd;
252b5132
RH		 4355 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
4356
116c20d2 4357 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_EXT_SIZE);
252b5132
RH		 4358 BFD_ASSERT (input_bfd->xvec->header_byteorder
4359 == output_bfd->xvec->header_byteorder);
4360
0e1862bb 4361 relocatable = bfd_link_relocatable (flaginfo->info);
252b5132
RH		 4362 syms = obj_aout_external_syms (input_bfd);
4363 strings = obj_aout_external_strings (input_bfd);
4364 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4365 symbol_map = flaginfo->symbol_map;
252b5132 4366
116c20d2 4367 reloc_count = rel_size / RELOC_EXT_SIZE;
252b5132
RH		 4368 rel = relocs;
4369 rel_end = rel + reloc_count;
4370 for (; rel < rel_end; rel++)
4371 {
4372 bfd_vma r_addr;
4373 int r_index;
4374 int r_extern;
116c20d2
NC		 4375 unsigned int r_type;
4376 bfd_vma r_addend;
252b5132 4377 struct aout_link_hash_entry *h = NULL;
116c20d2 4378 asection *r_section = NULL;
252b5132 4379 bfd_vma relocation;
252b5132
RH		 4380
4381 r_addr = GET_SWORD (input_bfd, rel->r_address);
4382
116c20d2
NC		 4383 if (bfd_header_big_endian (input_bfd))
4384 {
4385 r_index = (((unsigned int) rel->r_index[0] << 16)
4386 | ((unsigned int) rel->r_index[1] << 8)
4387 | rel->r_index[2]);
4388 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
4389 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
4390 >> RELOC_EXT_BITS_TYPE_SH_BIG);
4391 }
4392 else
4393 {
4394 r_index = (((unsigned int) rel->r_index[2] << 16)
4395 | ((unsigned int) rel->r_index[1] << 8)
4396 | rel->r_index[0]);
4397 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
4398 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
4399 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
4400 }
252b5132 4401
116c20d2 4402 r_addend = GET_SWORD (input_bfd, rel->r_addend);
252b5132 4403
ad756e3f
AM		 4404 if (r_type >= TABLE_SIZE (howto_table_ext))
4405 {
0aa13fee
AM		 4406 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4407 input_bfd, r_type);
ad756e3f
AM		 4408 bfd_set_error (bfd_error_bad_value);
4409 return FALSE;
4410 }
252b5132 4411
1049f94e 4412 if (relocatable)
252b5132 4413 {
1049f94e 4414 /* We are generating a relocatable output file, and must
252b5132 4415 modify the reloc accordingly. */
116c20d2
NC		 4416 if (r_extern
4417 || r_type == (unsigned int) RELOC_BASE10
4418 || r_type == (unsigned int) RELOC_BASE13
4419 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 4420 {
4421 /* If we know the symbol this relocation is against,
4422 convert it into a relocation against a section. This
4423 is what the native linker does. */
116c20d2
NC		 4424 if (r_type == (unsigned int) RELOC_BASE10
4425 || r_type == (unsigned int) RELOC_BASE13
4426 || r_type == (unsigned int) RELOC_BASE22)
4427 h = NULL;
4428 else
4429 h = sym_hashes[r_index];
4430 if (h != NULL
252b5132
RH		 4431 && (h->root.type == bfd_link_hash_defined
4432 || h->root.type == bfd_link_hash_defweak))
4433 {
4434 asection *output_section;
4435
4436 /* Change the r_extern value. */
4437 if (bfd_header_big_endian (output_bfd))
116c20d2 4438 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_BIG;
252b5132 4439 else
116c20d2 4440 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE;
252b5132
RH		 4441
4442 /* Compute a new r_index. */
4443 output_section = h->root.u.def.section->output_section;
4444 if (output_section == obj_textsec (output_bfd))
4445 r_index = N_TEXT;
4446 else if (output_section == obj_datasec (output_bfd))
4447 r_index = N_DATA;
4448 else if (output_section == obj_bsssec (output_bfd))
4449 r_index = N_BSS;
4450 else
4451 r_index = N_ABS;
4452
4453 /* Add the symbol value and the section VMA to the
116c20d2 4454 addend. */
252b5132
RH		 4455 relocation = (h->root.u.def.value
4456 + output_section->vma
4457 + h->root.u.def.section->output_offset);
116c20d2
NC		 4458
4459 /* Now RELOCATION is the VMA of the final
4460 destination. If this is a PC relative reloc,
4461 then ADDEND is the negative of the source VMA.
4462 We want to set ADDEND to the difference between
4463 the destination VMA and the source VMA, which
4464 means we must adjust RELOCATION by the change in
4465 the source VMA. This is done below. */
252b5132
RH		 4466 }
4467 else
4468 {
4469 /* We must change r_index according to the symbol
4470 map. */
4471 r_index = symbol_map[r_index];
4472
4473 if (r_index == -1)
4474 {
4475 if (h != NULL)
4476 {
4477 /* We decided to strip this symbol, but it
07d6d2b8
AM		 4478 turns out that we can't. Note that we
4479 lose the other and desc information here.
4480 I don't think that will ever matter for a
4481 global symbol. */
252b5132
RH		 4482 if (h->indx < 0)
4483 {
4484 h->indx = -2;
b34976b6 4485 h->written = FALSE;
7686d77d 4486 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4487 flaginfo))
b34976b6 4488 return FALSE;
252b5132
RH		 4489 }
4490 r_index = h->indx;
4491 }
4492 else
4493 {
4494 const char *name;
4495
4496 name = strings + GET_WORD (input_bfd,
4497 syms[r_index].e_strx);
1a72702b
AM		 4498 (*flaginfo->info->callbacks->unattached_reloc)
4499 (flaginfo->info, name,
4500 input_bfd, input_section, r_addr);
252b5132
RH		 4501 r_index = 0;
4502 }
4503 }
4504
4505 relocation = 0;
116c20d2
NC		 4506
4507 /* If this is a PC relative reloc, then the addend
4508 is the negative of the source VMA. We must
4509 adjust it by the change in the source VMA. This
4510 is done below. */
252b5132
RH		 4511 }
4512
4513 /* Write out the new r_index value. */
4514 if (bfd_header_big_endian (output_bfd))
4515 {
4516 rel->r_index[0] = r_index >> 16;
4517 rel->r_index[1] = r_index >> 8;
4518 rel->r_index[2] = r_index;
4519 }
4520 else
4521 {
4522 rel->r_index[2] = r_index >> 16;
4523 rel->r_index[1] = r_index >> 8;
4524 rel->r_index[0] = r_index;
4525 }
4526 }
4527 else
4528 {
252b5132
RH		 4529 /* This is a relocation against a section. We must
4530 adjust by the amount that the section moved. */
116c20d2
NC		 4531 r_section = aout_reloc_index_to_section (input_bfd, r_index);
4532 relocation = (r_section->output_section->vma
4533 + r_section->output_offset
4534 - r_section->vma);
252b5132 4535
116c20d2
NC		 4536 /* If this is a PC relative reloc, then the addend is
4537 the difference in VMA between the destination and the
4538 source. We have just adjusted for the change in VMA
4539 of the destination, so we must also adjust by the
4540 change in VMA of the source. This is done below. */
4541 }
252b5132 4542
116c20d2
NC		 4543 /* As described above, we must always adjust a PC relative
4544 reloc by the change in VMA of the source. However, if
4545 pcrel_offset is set, then the addend does not include the
4546 location within the section, in which case we don't need
4547 to adjust anything. */
4548 if (howto_table_ext[r_type].pc_relative
4549 && ! howto_table_ext[r_type].pcrel_offset)
252b5132
RH		 4550 relocation -= (input_section->output_section->vma
4551 + input_section->output_offset
4552 - input_section->vma);
4553
116c20d2
NC		 4554 /* Change the addend if necessary. */
4555 if (relocation != 0)
4556 PUT_WORD (output_bfd, r_addend + relocation, rel->r_addend);
252b5132 4557
116c20d2
NC		 4558 /* Change the address of the relocation. */
4559 PUT_WORD (output_bfd,
4560 r_addr + input_section->output_offset,
4561 rel->r_address);
252b5132
RH		 4562 }
4563 else
4564 {
b34976b6 4565 bfd_boolean hundef;
116c20d2 4566 bfd_reloc_status_type r;
252b5132
RH		 4567
4568 /* We are generating an executable, and must do a full
4569 relocation. */
b34976b6 4570 hundef = FALSE;
252b5132
RH		 4571
4572 if (r_extern)
4573 {
4574 h = sym_hashes[r_index];
4575
116c20d2 4576 if (h != NULL
252b5132
RH		 4577 && (h->root.type == bfd_link_hash_defined
4578 || h->root.type == bfd_link_hash_defweak))
4579 {
4580 relocation = (h->root.u.def.value
4581 + h->root.u.def.section->output_section->vma
4582 + h->root.u.def.section->output_offset);
4583 }
116c20d2 4584 else if (h != NULL
252b5132
RH		 4585 && h->root.type == bfd_link_hash_undefweak)
4586 relocation = 0;
4587 else
4588 {
b34976b6 4589 hundef = TRUE;
252b5132
RH		 4590 relocation = 0;
4591 }
4592 }
116c20d2
NC		 4593 else if (r_type == (unsigned int) RELOC_BASE10
4594 || r_type == (unsigned int) RELOC_BASE13
4595 || r_type == (unsigned int) RELOC_BASE22)
4596 {
4597 struct external_nlist *sym;
4598 int type;
4599
4600 /* For base relative relocs, r_index is always an index
07d6d2b8 4601 into the symbol table, even if r_extern is 0. */
116c20d2
NC		 4602 sym = syms + r_index;
4603 type = H_GET_8 (input_bfd, sym->e_type);
4604 if ((type & N_TYPE) == N_TEXT
4605 || type == N_WEAKT)
4606 r_section = obj_textsec (input_bfd);
4607 else if ((type & N_TYPE) == N_DATA
4608 || type == N_WEAKD)
4609 r_section = obj_datasec (input_bfd);
4610 else if ((type & N_TYPE) == N_BSS
4611 || type == N_WEAKB)
4612 r_section = obj_bsssec (input_bfd);
4613 else if ((type & N_TYPE) == N_ABS
4614 || type == N_WEAKA)
4615 r_section = bfd_abs_section_ptr;
4616 else
4617 abort ();
4618 relocation = (r_section->output_section->vma
4619 + r_section->output_offset
4620 + (GET_WORD (input_bfd, sym->e_value)
4621 - r_section->vma));
4622 }
252b5132
RH		 4623 else
4624 {
116c20d2 4625 r_section = aout_reloc_index_to_section (input_bfd, r_index);
252b5132 4626
116c20d2
NC		 4627 /* If this is a PC relative reloc, then R_ADDEND is the
4628 difference between the two vmas, or
4629 old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
4630 where
4631 old_dest_sec == section->vma
4632 and
4633 old_src_sec == input_section->vma
4634 and
4635 old_src_off == r_addr
4636
4637 _bfd_final_link_relocate expects RELOCATION +
4638 R_ADDEND to be the VMA of the destination minus
4639 r_addr (the minus r_addr is because this relocation
4640 is not pcrel_offset, which is a bit confusing and
4641 should, perhaps, be changed), or
4642 new_dest_sec
4643 where
4644 new_dest_sec == output_section->vma + output_offset
4645 We arrange for this to happen by setting RELOCATION to
4646 new_dest_sec + old_src_sec - old_dest_sec
4647
4648 If this is not a PC relative reloc, then R_ADDEND is
4649 simply the VMA of the destination, so we set
4650 RELOCATION to the change in the destination VMA, or
4651 new_dest_sec - old_dest_sec
4652 */
4653 relocation = (r_section->output_section->vma
4654 + r_section->output_offset
4655 - r_section->vma);
4656 if (howto_table_ext[r_type].pc_relative)
252b5132
RH		 4657 relocation += input_section->vma;
4658 }
4659
4660 if (check_dynamic_reloc != NULL)
4661 {
b34976b6 4662 bfd_boolean skip;
252b5132
RH		 4663
4664 if (! ((*check_dynamic_reloc)
57402f1e 4665 (flaginfo->info, input_bfd, input_section, h,
116c20d2 4666 (void *) rel, contents, &skip, &relocation)))
b34976b6 4667 return FALSE;
252b5132
RH		 4668 if (skip)
4669 continue;
4670 }
4671
4672 /* Now warn if a global symbol is undefined. We could not
07d6d2b8
AM		 4673 do this earlier, because check_dynamic_reloc might want
4674 to skip this reloc. */
116c20d2 4675 if (hundef
0e1862bb 4676 && ! bfd_link_pic (flaginfo->info)
116c20d2
NC		 4677 && r_type != (unsigned int) RELOC_BASE10
4678 && r_type != (unsigned int) RELOC_BASE13
4679 && r_type != (unsigned int) RELOC_BASE22)
252b5132
RH		 4680 {
4681 const char *name;
4682
4683 if (h != NULL)
4684 name = h->root.root.string;
4685 else
4686 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4687 (*flaginfo->info->callbacks->undefined_symbol)
4688 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
252b5132
RH		 4689 }
4690
116c20d2
NC		 4691 if (r_type != (unsigned int) RELOC_SPARC_REV32)
4692 r = MY_final_link_relocate (howto_table_ext + r_type,
4693 input_bfd, input_section,
4694 contents, r_addr, relocation,
4695 r_addend);
4696 else
252b5132 4697 {
116c20d2 4698 bfd_vma x;
252b5132 4699
116c20d2
NC		 4700 x = bfd_get_32 (input_bfd, contents + r_addr);
4701 x = x + relocation + r_addend;
4702 bfd_putl32 (/*input_bfd,*/ x, contents + r_addr);
4703 r = bfd_reloc_ok;
4704 }
4705
4706 if (r != bfd_reloc_ok)
4707 {
4708 switch (r)
4709 {
4710 default:
4711 case bfd_reloc_outofrange:
4712 abort ();
4713 case bfd_reloc_overflow:
252b5132 4714 {
116c20d2 4715 const char *name;
252b5132 4716
116c20d2
NC		 4717 if (h != NULL)
4718 name = NULL;
4719 else if (r_extern
4720 || r_type == (unsigned int) RELOC_BASE10
4721 || r_type == (unsigned int) RELOC_BASE13
4722 || r_type == (unsigned int) RELOC_BASE22)
4723 name = strings + GET_WORD (input_bfd,
4724 syms[r_index].e_strx);
4725 else
4726 {
4727 asection *s;
4728
4729 s = aout_reloc_index_to_section (input_bfd, r_index);
fd361982 4730 name = bfd_section_name (s);
116c20d2 4731 }
1a72702b
AM		 4732 (*flaginfo->info->callbacks->reloc_overflow)
4733 (flaginfo->info, (h ? &h->root : NULL), name,
4734 howto_table_ext[r_type].name,
4735 r_addend, input_bfd, input_section, r_addr);
252b5132 4736 }
116c20d2
NC		 4737 break;
4738 }
252b5132
RH		 4739 }
4740 }
4741 }
4742
b34976b6 4743 return TRUE;
252b5132
RH		 4744}
4745
116c20d2
NC		 4746/* Link an a.out section into the output file. */
4747
4748static bfd_boolean
57402f1e 4749aout_link_input_section (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4750 bfd *input_bfd,
4751 asection *input_section,
4752 file_ptr *reloff_ptr,
4753 bfd_size_type rel_size)
4754{
4755 bfd_size_type input_size;
4756 void * relocs;
4757
4758 /* Get the section contents. */
4759 input_size = input_section->size;
4760 if (! bfd_get_section_contents (input_bfd, input_section,
57402f1e 4761 (void *) flaginfo->contents,
116c20d2
NC		 4762 (file_ptr) 0, input_size))
4763 return FALSE;
4764
4765 /* Read in the relocs if we haven't already done it. */
4766 if (aout_section_data (input_section) != NULL
4767 && aout_section_data (input_section)->relocs != NULL)
4768 relocs = aout_section_data (input_section)->relocs;
4769 else
4770 {
57402f1e 4771 relocs = flaginfo->relocs;
116c20d2
NC		 4772 if (rel_size > 0)
4773 {
4774 if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
4775 || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
4776 return FALSE;
4777 }
4778 }
4779
4780 /* Relocate the section contents. */
4781 if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE)
4782 {
57402f1e 4783 if (! aout_link_input_section_std (flaginfo, input_bfd, input_section,
116c20d2 4784 (struct reloc_std_external *) relocs,
57402f1e 4785 rel_size, flaginfo->contents))
116c20d2
NC		 4786 return FALSE;
4787 }
4788 else
4789 {
57402f1e 4790 if (! aout_link_input_section_ext (flaginfo, input_bfd, input_section,
116c20d2 4791 (struct reloc_ext_external *) relocs,
57402f1e 4792 rel_size, flaginfo->contents))
116c20d2
NC		 4793 return FALSE;
4794 }
4795
4796 /* Write out the section contents. */
57402f1e 4797 if (! bfd_set_section_contents (flaginfo->output_bfd,
116c20d2 4798 input_section->output_section,
57402f1e 4799 (void *) flaginfo->contents,
116c20d2
NC		 4800 (file_ptr) input_section->output_offset,
4801 input_size))
4802 return FALSE;
4803
4804 /* If we are producing relocatable output, the relocs were
4805 modified, and we now write them out. */
0e1862bb 4806 if (bfd_link_relocatable (flaginfo->info) && rel_size > 0)
116c20d2 4807 {
57402f1e 4808 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
116c20d2 4809 return FALSE;
57402f1e 4810 if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size)
116c20d2
NC		 4811 return FALSE;
4812 *reloff_ptr += rel_size;
4813
4814 /* Assert that the relocs have not run into the symbols, and
4815 that if these are the text relocs they have not run into the
4816 data relocs. */
57402f1e
NC		 4817 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
4818 && (reloff_ptr != &flaginfo->treloff
116c20d2 4819 || (*reloff_ptr
57402f1e 4820 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 4821 }
4822
4823 return TRUE;
4824}
4825
4826/* Adjust and write out the symbols for an a.out file. Set the new
4827 symbol indices into a symbol_map. */
252b5132 4828
b34976b6 4829static bfd_boolean
57402f1e 4830aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd)
252b5132 4831{
252b5132 4832 bfd *output_bfd;
116c20d2 4833 bfd_size_type sym_count;
252b5132 4834 char *strings;
116c20d2
NC		 4835 enum bfd_link_strip strip;
4836 enum bfd_link_discard discard;
4837 struct external_nlist *outsym;
4838 bfd_size_type strtab_index;
4839 struct external_nlist *sym;
4840 struct external_nlist *sym_end;
4841 struct aout_link_hash_entry **sym_hash;
252b5132 4842 int *symbol_map;
116c20d2
NC		 4843 bfd_boolean pass;
4844 bfd_boolean skip_next;
252b5132 4845
57402f1e 4846 output_bfd = flaginfo->output_bfd;
116c20d2
NC		 4847 sym_count = obj_aout_external_sym_count (input_bfd);
4848 strings = obj_aout_external_strings (input_bfd);
57402f1e
NC		 4849 strip = flaginfo->info->strip;
4850 discard = flaginfo->info->discard;
4851 outsym = flaginfo->output_syms;
252b5132 4852
116c20d2
NC		 4853 /* First write out a symbol for this object file, unless we are
4854 discarding such symbols. */
4855 if (strip != strip_all
4856 && (strip != strip_some
57402f1e 4857 || bfd_hash_lookup (flaginfo->info->keep_hash, input_bfd->filename,
116c20d2
NC		 4858 FALSE, FALSE) != NULL)
4859 && discard != discard_all)
4860 {
4861 H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
4862 H_PUT_8 (output_bfd, 0, outsym->e_other);
4863 H_PUT_16 (output_bfd, 0, outsym->e_desc);
57402f1e 4864 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 4865 input_bfd->filename, FALSE);
4866 if (strtab_index == (bfd_size_type) -1)
4867 return FALSE;
4868 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
4869 PUT_WORD (output_bfd,
fd361982 4870 (bfd_section_vma (obj_textsec (input_bfd)->output_section)
116c20d2
NC		 4871 + obj_textsec (input_bfd)->output_offset),
4872 outsym->e_value);
4873 ++obj_aout_external_sym_count (output_bfd);
4874 ++outsym;
4875 }
252b5132 4876
116c20d2
NC		 4877 pass = FALSE;
4878 skip_next = FALSE;
4879 sym = obj_aout_external_syms (input_bfd);
4880 sym_end = sym + sym_count;
4881 sym_hash = obj_aout_sym_hashes (input_bfd);
57402f1e 4882 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4883 memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map);
4884 for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
252b5132 4885 {
116c20d2
NC		 4886 const char *name;
4887 int type;
4888 struct aout_link_hash_entry *h;
4889 bfd_boolean skip;
4890 asection *symsec;
4891 bfd_vma val = 0;
4892 bfd_boolean copy;
252b5132 4893
116c20d2 4894 /* We set *symbol_map to 0 above for all symbols. If it has
07d6d2b8
AM		 4895 already been set to -1 for this symbol, it means that we are
4896 discarding it because it appears in a duplicate header file.
4897 See the N_BINCL code below. */
116c20d2
NC		 4898 if (*symbol_map == -1)
4899 continue;
252b5132 4900
116c20d2 4901 /* Initialize *symbol_map to -1, which means that the symbol was
07d6d2b8
AM		 4902 not copied into the output file. We will change it later if
4903 we do copy the symbol over. */
116c20d2
NC		 4904 *symbol_map = -1;
4905
4906 type = H_GET_8 (input_bfd, sym->e_type);
4907 name = strings + GET_WORD (input_bfd, sym->e_strx);
4908
4909 h = NULL;
4910
4911 if (pass)
252b5132 4912 {
116c20d2
NC		 4913 /* Pass this symbol through. It is the target of an
4914 indirect or warning symbol. */
4915 val = GET_WORD (input_bfd, sym->e_value);
4916 pass = FALSE;
252b5132 4917 }
116c20d2 4918 else if (skip_next)
252b5132 4919 {
116c20d2
NC		 4920 /* Skip this symbol, which is the target of an indirect
4921 symbol that we have changed to no longer be an indirect
4922 symbol. */
4923 skip_next = FALSE;
4924 continue;
252b5132 4925 }
116c20d2
NC		 4926 else
4927 {
4928 struct aout_link_hash_entry *hresolve;
252b5132 4929
116c20d2
NC		 4930 /* We have saved the hash table entry for this symbol, if
4931 there is one. Note that we could just look it up again
4932 in the hash table, provided we first check that it is an
4933 external symbol. */
4934 h = *sym_hash;
252b5132 4935
116c20d2 4936 /* Use the name from the hash table, in case the symbol was
07d6d2b8 4937 wrapped. */
116c20d2
NC		 4938 if (h != NULL
4939 && h->root.type != bfd_link_hash_warning)
4940 name = h->root.root.string;
252b5132 4941
116c20d2
NC		 4942 /* If this is an indirect or warning symbol, then change
4943 hresolve to the base symbol. We also change *sym_hash so
4944 that the relocation routines relocate against the real
4945 symbol. */
4946 hresolve = h;
4947 if (h != (struct aout_link_hash_entry *) NULL
4948 && (h->root.type == bfd_link_hash_indirect
4949 || h->root.type == bfd_link_hash_warning))
252b5132 4950 {
116c20d2
NC		 4951 hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
4952 while (hresolve->root.type == bfd_link_hash_indirect
4953 || hresolve->root.type == bfd_link_hash_warning)
4954 hresolve = ((struct aout_link_hash_entry *)
4955 hresolve->root.u.i.link);
4956 *sym_hash = hresolve;
4957 }
4958
4959 /* If the symbol has already been written out, skip it. */
4960 if (h != NULL
4961 && h->written)
4962 {
4963 if ((type & N_TYPE) == N_INDR
4964 || type == N_WARNING)
4965 skip_next = TRUE;
4966 *symbol_map = h->indx;
4967 continue;
4968 }
4969
4970 /* See if we are stripping this symbol. */
4971 skip = FALSE;
4972 switch (strip)
4973 {
4974 case strip_none:
4975 break;
4976 case strip_debugger:
4977 if ((type & N_STAB) != 0)
4978 skip = TRUE;
4979 break;
4980 case strip_some:
57402f1e 4981 if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE)
116c20d2
NC		 4982 == NULL)
4983 skip = TRUE;
4984 break;
4985 case strip_all:
4986 skip = TRUE;
4987 break;
4988 }
4989 if (skip)
4990 {
4991 if (h != NULL)
4992 h->written = TRUE;
4993 continue;
4994 }
4995
4996 /* Get the value of the symbol. */
4997 if ((type & N_TYPE) == N_TEXT
4998 || type == N_WEAKT)
4999 symsec = obj_textsec (input_bfd);
5000 else if ((type & N_TYPE) == N_DATA
5001 || type == N_WEAKD)
5002 symsec = obj_datasec (input_bfd);
5003 else if ((type & N_TYPE) == N_BSS
5004 || type == N_WEAKB)
5005 symsec = obj_bsssec (input_bfd);
5006 else if ((type & N_TYPE) == N_ABS
5007 || type == N_WEAKA)
5008 symsec = bfd_abs_section_ptr;
5009 else if (((type & N_TYPE) == N_INDR
5010 && (hresolve == NULL
5011 || (hresolve->root.type != bfd_link_hash_defined
5012 && hresolve->root.type != bfd_link_hash_defweak
5013 && hresolve->root.type != bfd_link_hash_common)))
5014 || type == N_WARNING)
5015 {
5016 /* Pass the next symbol through unchanged. The
5017 condition above for indirect symbols is so that if
5018 the indirect symbol was defined, we output it with
5019 the correct definition so the debugger will
5020 understand it. */
5021 pass = TRUE;
5022 val = GET_WORD (input_bfd, sym->e_value);
5023 symsec = NULL;
5024 }
5025 else if ((type & N_STAB) != 0)
5026 {
5027 val = GET_WORD (input_bfd, sym->e_value);
5028 symsec = NULL;
5029 }
5030 else
5031 {
5032 /* If we get here with an indirect symbol, it means that
5033 we are outputting it with a real definition. In such
5034 a case we do not want to output the next symbol,
5035 which is the target of the indirection. */
5036 if ((type & N_TYPE) == N_INDR)
5037 skip_next = TRUE;
5038
5039 symsec = NULL;
5040
5041 /* We need to get the value from the hash table. We use
5042 hresolve so that if we have defined an indirect
5043 symbol we output the final definition. */
5044 if (h == NULL)
5045 {
5046 switch (type & N_TYPE)
5047 {
5048 case N_SETT:
5049 symsec = obj_textsec (input_bfd);
5050 break;
5051 case N_SETD:
5052 symsec = obj_datasec (input_bfd);
5053 break;
5054 case N_SETB:
5055 symsec = obj_bsssec (input_bfd);
5056 break;
5057 case N_SETA:
5058 symsec = bfd_abs_section_ptr;
5059 break;
5060 default:
5061 val = 0;
5062 break;
5063 }
5064 }
5065 else if (hresolve->root.type == bfd_link_hash_defined
5066 || hresolve->root.type == bfd_link_hash_defweak)
252b5132 5067 {
116c20d2 5068 asection *input_section;
252b5132
RH		 5069 asection *output_section;
5070
116c20d2
NC		 5071 /* This case usually means a common symbol which was
5072 turned into a defined symbol. */
5073 input_section = hresolve->root.u.def.section;
5074 output_section = input_section->output_section;
5075 BFD_ASSERT (bfd_is_abs_section (output_section)
5076 || output_section->owner == output_bfd);
5077 val = (hresolve->root.u.def.value
fd361982 5078 + bfd_section_vma (output_section)
116c20d2
NC		 5079 + input_section->output_offset);
5080
5081 /* Get the correct type based on the section. If
5082 this is a constructed set, force it to be
5083 globally visible. */
5084 if (type == N_SETT
5085 || type == N_SETD
5086 || type == N_SETB
5087 || type == N_SETA)
5088 type |= N_EXT;
5089
5090 type &=~ N_TYPE;
252b5132 5091
252b5132 5092 if (output_section == obj_textsec (output_bfd))
116c20d2
NC		 5093 type |= (hresolve->root.type == bfd_link_hash_defined
5094 ? N_TEXT
5095 : N_WEAKT);
252b5132 5096 else if (output_section == obj_datasec (output_bfd))
116c20d2
NC		 5097 type |= (hresolve->root.type == bfd_link_hash_defined
5098 ? N_DATA
5099 : N_WEAKD);
252b5132 5100 else if (output_section == obj_bsssec (output_bfd))
116c20d2
NC		 5101 type |= (hresolve->root.type == bfd_link_hash_defined
5102 ? N_BSS
5103 : N_WEAKB);
252b5132 5104 else
116c20d2
NC		 5105 type |= (hresolve->root.type == bfd_link_hash_defined
5106 ? N_ABS
5107 : N_WEAKA);
5108 }
5109 else if (hresolve->root.type == bfd_link_hash_common)
5110 val = hresolve->root.u.c.size;
5111 else if (hresolve->root.type == bfd_link_hash_undefweak)
5112 {
5113 val = 0;
5114 type = N_WEAKU;
252b5132
RH		 5115 }
5116 else
116c20d2
NC		 5117 val = 0;
5118 }
5119 if (symsec != NULL)
5120 val = (symsec->output_section->vma
5121 + symsec->output_offset
5122 + (GET_WORD (input_bfd, sym->e_value)
5123 - symsec->vma));
5124
5125 /* If this is a global symbol set the written flag, and if
5126 it is a local symbol see if we should discard it. */
5127 if (h != NULL)
5128 {
5129 h->written = TRUE;
5130 h->indx = obj_aout_external_sym_count (output_bfd);
5131 }
5132 else if ((type & N_TYPE) != N_SETT
5133 && (type & N_TYPE) != N_SETD
5134 && (type & N_TYPE) != N_SETB
5135 && (type & N_TYPE) != N_SETA)
5136 {
5137 switch (discard)
252b5132 5138 {
116c20d2
NC		 5139 case discard_none:
5140 case discard_sec_merge:
5141 break;
5142 case discard_l:
5143 if ((type & N_STAB) == 0
5144 && bfd_is_local_label_name (input_bfd, name))
5145 skip = TRUE;
5146 break;
5147 case discard_all:
5148 skip = TRUE;
5149 break;
5150 }
5151 if (skip)
5152 {
5153 pass = FALSE;
5154 continue;
5155 }
5156 }
252b5132 5157
116c20d2
NC		 5158 /* An N_BINCL symbol indicates the start of the stabs
5159 entries for a header file. We need to scan ahead to the
5160 next N_EINCL symbol, ignoring nesting, adding up all the
5161 characters in the symbol names, not including the file
5162 numbers in types (the first number after an open
5163 parenthesis). */
5164 if (type == (int) N_BINCL)
5165 {
5166 struct external_nlist *incl_sym;
5167 int nest;
5168 struct aout_link_includes_entry *incl_entry;
5169 struct aout_link_includes_totals *t;
5170
5171 val = 0;
5172 nest = 0;
5173 for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
5174 {
5175 int incl_type;
5176
5177 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5178 if (incl_type == (int) N_EINCL)
252b5132 5179 {
116c20d2
NC		 5180 if (nest == 0)
5181 break;
5182 --nest;
5183 }
5184 else if (incl_type == (int) N_BINCL)
5185 ++nest;
5186 else if (nest == 0)
5187 {
5188 const char *s;
5189
5190 s = strings + GET_WORD (input_bfd, incl_sym->e_strx);
5191 for (; *s != '\0'; s++)
252b5132 5192 {
116c20d2
NC		 5193 val += *s;
5194 if (*s == '(')
252b5132 5195 {
116c20d2
NC		 5196 /* Skip the file number. */
5197 ++s;
5198 while (ISDIGIT (*s))
5199 ++s;
5200 --s;
252b5132 5201 }
252b5132 5202 }
116c20d2
NC		 5203 }
5204 }
252b5132 5205
116c20d2 5206 /* If we have already included a header file with the
07d6d2b8
AM		 5207 same value, then replace this one with an N_EXCL
5208 symbol. */
57402f1e
NC		 5209 copy = (bfd_boolean) (! flaginfo->info->keep_memory);
5210 incl_entry = aout_link_includes_lookup (&flaginfo->includes,
116c20d2
NC		 5211 name, TRUE, copy);
5212 if (incl_entry == NULL)
5213 return FALSE;
5214 for (t = incl_entry->totals; t != NULL; t = t->next)
5215 if (t->total == val)
5216 break;
5217 if (t == NULL)
5218 {
5219 /* This is the first time we have seen this header
07d6d2b8 5220 file with this set of stabs strings. */
a50b1753 5221 t = (struct aout_link_includes_totals *)
07d6d2b8 5222 bfd_hash_allocate (&flaginfo->includes.root,
116c20d2
NC		 5223 sizeof *t);
5224 if (t == NULL)
5225 return FALSE;
5226 t->total = val;
5227 t->next = incl_entry->totals;
5228 incl_entry->totals = t;
5229 }
5230 else
5231 {
5232 int *incl_map;
5233
5234 /* This is a duplicate header file. We must change
07d6d2b8
AM		 5235 it to be an N_EXCL entry, and mark all the
5236 included symbols to prevent outputting them. */
116c20d2
NC		 5237 type = (int) N_EXCL;
5238
5239 nest = 0;
5240 for (incl_sym = sym + 1, incl_map = symbol_map + 1;
5241 incl_sym < sym_end;
5242 incl_sym++, incl_map++)
5243 {
5244 int incl_type;
5245
5246 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5247 if (incl_type == (int) N_EINCL)
5248 {
5249 if (nest == 0)
5250 {
5251 *incl_map = -1;
5252 break;
5253 }
5254 --nest;
252b5132 5255 }
116c20d2
NC		 5256 else if (incl_type == (int) N_BINCL)
5257 ++nest;
5258 else if (nest == 0)
5259 *incl_map = -1;
252b5132 5260 }
252b5132
RH		 5261 }
5262 }
116c20d2
NC		 5263 }
5264
5265 /* Copy this symbol into the list of symbols we are going to
5266 write out. */
5267 H_PUT_8 (output_bfd, type, outsym->e_type);
5268 H_PUT_8 (output_bfd, H_GET_8 (input_bfd, sym->e_other), outsym->e_other);
5269 H_PUT_16 (output_bfd, H_GET_16 (input_bfd, sym->e_desc), outsym->e_desc);
5270 copy = FALSE;
57402f1e 5271 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5272 {
5273 /* name points into a string table which we are going to
5274 free. If there is a hash table entry, use that string.
5275 Otherwise, copy name into memory. */
5276 if (h != NULL)
5277 name = h->root.root.string;
252b5132 5278 else
116c20d2
NC		 5279 copy = TRUE;
5280 }
57402f1e 5281 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 5282 name, copy);
5283 if (strtab_index == (bfd_size_type) -1)
5284 return FALSE;
5285 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
5286 PUT_WORD (output_bfd, val, outsym->e_value);
5287 *symbol_map = obj_aout_external_sym_count (output_bfd);
5288 ++obj_aout_external_sym_count (output_bfd);
5289 ++outsym;
5290 }
252b5132 5291
116c20d2 5292 /* Write out the output symbols we have just constructed. */
57402f1e 5293 if (outsym > flaginfo->output_syms)
116c20d2
NC		 5294 {
5295 bfd_size_type outsym_size;
252b5132 5296
57402f1e 5297 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0)
116c20d2 5298 return FALSE;
57402f1e 5299 outsym_size = outsym - flaginfo->output_syms;
116c20d2 5300 outsym_size *= EXTERNAL_NLIST_SIZE;
57402f1e 5301 if (bfd_bwrite ((void *) flaginfo->output_syms, outsym_size, output_bfd)
116c20d2
NC		 5302 != outsym_size)
5303 return FALSE;
57402f1e 5304 flaginfo->symoff += outsym_size;
116c20d2 5305 }
252b5132 5306
116c20d2
NC		 5307 return TRUE;
5308}
252b5132 5309
116c20d2 5310/* Link an a.out input BFD into the output file. */
252b5132 5311
116c20d2 5312static bfd_boolean
57402f1e 5313aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd)
116c20d2 5314{
116c20d2 5315 BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
252b5132 5316
116c20d2
NC		 5317 /* If this is a dynamic object, it may need special handling. */
5318 if ((input_bfd->flags & DYNAMIC) != 0
5319 && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
5320 return ((*aout_backend_info (input_bfd)->link_dynamic_object)
57402f1e 5321 (flaginfo->info, input_bfd));
252b5132 5322
116c20d2 5323 /* Get the symbols. We probably have them already, unless
57402f1e 5324 flaginfo->info->keep_memory is FALSE. */
116c20d2
NC		 5325 if (! aout_get_external_symbols (input_bfd))
5326 return FALSE;
252b5132 5327
116c20d2 5328 /* Write out the symbols and get a map of the new indices. The map
57402f1e
NC		 5329 is placed into flaginfo->symbol_map. */
5330 if (! aout_link_write_symbols (flaginfo, input_bfd))
116c20d2 5331 return FALSE;
252b5132 5332
116c20d2
NC		 5333 /* Relocate and write out the sections. These functions use the
5334 symbol map created by aout_link_write_symbols. The linker_mark
5335 field will be set if these sections are to be included in the
5336 link, which will normally be the case. */
5337 if (obj_textsec (input_bfd)->linker_mark)
5338 {
57402f1e 5339 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5340 obj_textsec (input_bfd),
57402f1e 5341 &flaginfo->treloff,
116c20d2
NC		 5342 exec_hdr (input_bfd)->a_trsize))
5343 return FALSE;
5344 }
5345 if (obj_datasec (input_bfd)->linker_mark)
5346 {
57402f1e 5347 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5348 obj_datasec (input_bfd),
57402f1e 5349 &flaginfo->dreloff,
116c20d2
NC		 5350 exec_hdr (input_bfd)->a_drsize))
5351 return FALSE;
5352 }
5353
5354 /* If we are not keeping memory, we don't need the symbols any
5355 longer. We still need them if we are keeping memory, because the
5356 strings in the hash table point into them. */
57402f1e 5357 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5358 {
5359 if (! aout_link_free_symbols (input_bfd))
5360 return FALSE;
5361 }
5362
5363 return TRUE;
5364}
5365
5366/* Do the final link step. This is called on the output BFD. The
5367 INFO structure should point to a list of BFDs linked through the
c72f2fb2 5368 link.next field which can be used to find each BFD which takes part
116c20d2
NC		 5369 in the output. Also, each section in ABFD should point to a list
5370 of bfd_link_order structures which list all the input sections for
5371 the output section. */
5372
5373bfd_boolean
5374NAME (aout, final_link) (bfd *abfd,
5375 struct bfd_link_info *info,
5376 void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *))
5377{
5378 struct aout_final_link_info aout_info;
5379 bfd_boolean includes_hash_initialized = FALSE;
5380 bfd *sub;
5381 bfd_size_type trsize, drsize;
5382 bfd_size_type max_contents_size;
5383 bfd_size_type max_relocs_size;
5384 bfd_size_type max_sym_count;
116c20d2
NC		 5385 struct bfd_link_order *p;
5386 asection *o;
5387 bfd_boolean have_link_order_relocs;
5388
0e1862bb 5389 if (bfd_link_pic (info))
116c20d2
NC		 5390 abfd->flags |= DYNAMIC;
5391
5392 aout_info.info = info;
5393 aout_info.output_bfd = abfd;
5394 aout_info.contents = NULL;
5395 aout_info.relocs = NULL;
5396 aout_info.symbol_map = NULL;
5397 aout_info.output_syms = NULL;
252b5132 5398
66eb6687
AM		 5399 if (!bfd_hash_table_init_n (&aout_info.includes.root,
5400 aout_link_includes_newfunc,
5401 sizeof (struct aout_link_includes_entry),
5402 251))
116c20d2
NC		 5403 goto error_return;
5404 includes_hash_initialized = TRUE;
252b5132 5405
116c20d2
NC		 5406 /* Figure out the largest section size. Also, if generating
5407 relocatable output, count the relocs. */
5408 trsize = 0;
5409 drsize = 0;
5410 max_contents_size = 0;
5411 max_relocs_size = 0;
5412 max_sym_count = 0;
c72f2fb2 5413 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2
NC		 5414 {
5415 bfd_size_type sz;
252b5132 5416
0e1862bb 5417 if (bfd_link_relocatable (info))
116c20d2
NC		 5418 {
5419 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
252b5132 5420 {
116c20d2
NC		 5421 trsize += exec_hdr (sub)->a_trsize;
5422 drsize += exec_hdr (sub)->a_drsize;
252b5132 5423 }
252b5132
RH		 5424 else
5425 {
116c20d2
NC		 5426 /* FIXME: We need to identify the .text and .data sections
5427 and call get_reloc_upper_bound and canonicalize_reloc to
5428 work out the number of relocs needed, and then multiply
5429 by the reloc size. */
4eca0228 5430 _bfd_error_handler
695344c0 5431 /* xgettext:c-format */
871b3ab2 5432 (_("%pB: relocatable link from %s to %s not supported"),
dae82561 5433 abfd, sub->xvec->name, abfd->xvec->name);
116c20d2
NC		 5434 bfd_set_error (bfd_error_invalid_operation);
5435 goto error_return;
252b5132 5436 }
116c20d2 5437 }
252b5132 5438
116c20d2
NC		 5439 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
5440 {
5441 sz = obj_textsec (sub)->size;
5442 if (sz > max_contents_size)
5443 max_contents_size = sz;
5444 sz = obj_datasec (sub)->size;
5445 if (sz > max_contents_size)
5446 max_contents_size = sz;
252b5132 5447
116c20d2
NC		 5448 sz = exec_hdr (sub)->a_trsize;
5449 if (sz > max_relocs_size)
5450 max_relocs_size = sz;
5451 sz = exec_hdr (sub)->a_drsize;
5452 if (sz > max_relocs_size)
5453 max_relocs_size = sz;
252b5132 5454
116c20d2
NC		 5455 sz = obj_aout_external_sym_count (sub);
5456 if (sz > max_sym_count)
5457 max_sym_count = sz;
252b5132
RH		 5458 }
5459 }
5460
0e1862bb 5461 if (bfd_link_relocatable (info))
116c20d2
NC		 5462 {
5463 if (obj_textsec (abfd) != NULL)
5464 trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
8423293d 5465 ->map_head.link_order)
116c20d2
NC		 5466 * obj_reloc_entry_size (abfd));
5467 if (obj_datasec (abfd) != NULL)
5468 drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
8423293d 5469 ->map_head.link_order)
116c20d2
NC		 5470 * obj_reloc_entry_size (abfd));
5471 }
252b5132 5472
116c20d2
NC		 5473 exec_hdr (abfd)->a_trsize = trsize;
5474 exec_hdr (abfd)->a_drsize = drsize;
252b5132 5475
116c20d2 5476 exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
252b5132 5477
116c20d2
NC		 5478 /* Adjust the section sizes and vmas according to the magic number.
5479 This sets a_text, a_data and a_bss in the exec_hdr and sets the
5480 filepos for each section. */
3a8c4a5b 5481 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
116c20d2 5482 goto error_return;
252b5132 5483
116c20d2
NC		 5484 /* The relocation and symbol file positions differ among a.out
5485 targets. We are passed a callback routine from the backend
5486 specific code to handle this.
5487 FIXME: At this point we do not know how much space the symbol
5488 table will require. This will not work for any (nonstandard)
5489 a.out target that needs to know the symbol table size before it
dc12032b 5490 can compute the relocation file positions. */
116c20d2
NC		 5491 (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
5492 &aout_info.symoff);
5493 obj_textsec (abfd)->rel_filepos = aout_info.treloff;
5494 obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
5495 obj_sym_filepos (abfd) = aout_info.symoff;
252b5132 5496
116c20d2
NC		 5497 /* We keep a count of the symbols as we output them. */
5498 obj_aout_external_sym_count (abfd) = 0;
5499
5500 /* We accumulate the string table as we write out the symbols. */
5501 aout_info.strtab = _bfd_stringtab_init ();
5502 if (aout_info.strtab == NULL)
5503 goto error_return;
5504
5505 /* Allocate buffers to hold section contents and relocs. */
a50b1753 5506 aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
116c20d2 5507 aout_info.relocs = bfd_malloc (max_relocs_size);
c38eb2a6 5508 aout_info.symbol_map = (int *) bfd_malloc (max_sym_count * sizeof (int));
a50b1753
NC		 5509 aout_info.output_syms = (struct external_nlist *)
5510 bfd_malloc ((max_sym_count + 1) * sizeof (struct external_nlist));
116c20d2
NC		 5511 if ((aout_info.contents == NULL && max_contents_size != 0)
5512 || (aout_info.relocs == NULL && max_relocs_size != 0)
5513 || (aout_info.symbol_map == NULL && max_sym_count != 0)
5514 || aout_info.output_syms == NULL)
5515 goto error_return;
5516
5517 /* If we have a symbol named __DYNAMIC, force it out now. This is
5518 required by SunOS. Doing this here rather than in sunos.c is a
5519 hack, but it's easier than exporting everything which would be
5520 needed. */
5521 {
5522 struct aout_link_hash_entry *h;
5523
5524 h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
5525 FALSE, FALSE, FALSE);
5526 if (h != NULL)
7686d77d 5527 aout_link_write_other_symbol (&h->root.root, &aout_info);
116c20d2
NC		 5528 }
5529
5530 /* The most time efficient way to do the link would be to read all
5531 the input object files into memory and then sort out the
5532 information into the output file. Unfortunately, that will
5533 probably use too much memory. Another method would be to step
5534 through everything that composes the text section and write it
5535 out, and then everything that composes the data section and write
5536 it out, and then write out the relocs, and then write out the
5537 symbols. Unfortunately, that requires reading stuff from each
5538 input file several times, and we will not be able to keep all the
5539 input files open simultaneously, and reopening them will be slow.
5540
5541 What we do is basically process one input file at a time. We do
5542 everything we need to do with an input file once--copy over the
5543 section contents, handle the relocation information, and write
5544 out the symbols--and then we throw away the information we read
5545 from it. This approach requires a lot of lseeks of the output
5546 file, which is unfortunate but still faster than reopening a lot
5547 of files.
5548
5549 We use the output_has_begun field of the input BFDs to see
5550 whether we have already handled it. */
c72f2fb2 5551 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2 5552 sub->output_has_begun = FALSE;
252b5132 5553
116c20d2
NC		 5554 /* Mark all sections which are to be included in the link. This
5555 will normally be every section. We need to do this so that we
5556 can identify any sections which the linker has decided to not
5557 include. */
5558 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5559 {
8423293d 5560 for (p = o->map_head.link_order; p != NULL; p = p->next)
116c20d2
NC		 5561 if (p->type == bfd_indirect_link_order)
5562 p->u.indirect.section->linker_mark = TRUE;
252b5132
RH		 5563 }
5564
116c20d2
NC		 5565 have_link_order_relocs = FALSE;
5566 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5567 {
8423293d 5568 for (p = o->map_head.link_order;
116c20d2
NC		 5569 p != NULL;
5570 p = p->next)
252b5132 5571 {
116c20d2
NC		 5572 if (p->type == bfd_indirect_link_order
5573 && (bfd_get_flavour (p->u.indirect.section->owner)
5574 == bfd_target_aout_flavour))
252b5132 5575 {
116c20d2
NC		 5576 bfd *input_bfd;
5577
5578 input_bfd = p->u.indirect.section->owner;
5579 if (! input_bfd->output_has_begun)
252b5132 5580 {
116c20d2
NC		 5581 if (! aout_link_input_bfd (&aout_info, input_bfd))
5582 goto error_return;
5583 input_bfd->output_has_begun = TRUE;
252b5132 5584 }
252b5132 5585 }
116c20d2
NC		 5586 else if (p->type == bfd_section_reloc_link_order
5587 || p->type == bfd_symbol_reloc_link_order)
5588 {
5589 /* These are handled below. */
5590 have_link_order_relocs = TRUE;
5591 }
5592 else
5593 {
5594 if (! _bfd_default_link_order (abfd, info, o, p))
5595 goto error_return;
5596 }
252b5132
RH		 5597 }
5598 }
252b5132 5599
116c20d2 5600 /* Write out any symbols that we have not already written out. */
7686d77d
AM		 5601 bfd_hash_traverse (&info->hash->table,
5602 aout_link_write_other_symbol,
5603 &aout_info);
116c20d2
NC		 5604
5605 /* Now handle any relocs we were asked to create by the linker.
5606 These did not come from any input file. We must do these after
5607 we have written out all the symbols, so that we know the symbol
5608 indices to use. */
5609 if (have_link_order_relocs)
5610 {
5611 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5612 {
8423293d 5613 for (p = o->map_head.link_order;
116c20d2
NC		 5614 p != NULL;
5615 p = p->next)
5616 {
5617 if (p->type == bfd_section_reloc_link_order
5618 || p->type == bfd_symbol_reloc_link_order)
5619 {
5620 if (! aout_link_reloc_link_order (&aout_info, o, p))
5621 goto error_return;
5622 }
5623 }
252b5132 5624 }
116c20d2 5625 }
252b5132 5626
116c20d2
NC		 5627 if (aout_info.contents != NULL)
5628 {
5629 free (aout_info.contents);
5630 aout_info.contents = NULL;
5631 }
5632 if (aout_info.relocs != NULL)
5633 {
5634 free (aout_info.relocs);
5635 aout_info.relocs = NULL;
5636 }
5637 if (aout_info.symbol_map != NULL)
5638 {
5639 free (aout_info.symbol_map);
5640 aout_info.symbol_map = NULL;
5641 }
5642 if (aout_info.output_syms != NULL)
5643 {
5644 free (aout_info.output_syms);
5645 aout_info.output_syms = NULL;
5646 }
5647 if (includes_hash_initialized)
5648 {
5649 bfd_hash_table_free (&aout_info.includes.root);
5650 includes_hash_initialized = FALSE;
5651 }
252b5132 5652
116c20d2
NC		 5653 /* Finish up any dynamic linking we may be doing. */
5654 if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
5655 {
5656 if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
5657 goto error_return;
252b5132
RH		 5658 }
5659
116c20d2
NC		 5660 /* Update the header information. */
5661 abfd->symcount = obj_aout_external_sym_count (abfd);
5662 exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
5663 obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
5664 obj_textsec (abfd)->reloc_count =
5665 exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
5666 obj_datasec (abfd)->reloc_count =
5667 exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
252b5132 5668
116c20d2 5669 /* Write out the string table, unless there are no symbols. */
f6e688f7
AM		 5670 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0)
5671 goto error_return;
116c20d2
NC		 5672 if (abfd->symcount > 0)
5673 {
f6e688f7 5674 if (!emit_stringtab (abfd, aout_info.strtab))
116c20d2
NC		 5675 goto error_return;
5676 }
f6e688f7 5677 else
116c20d2 5678 {
f6e688f7 5679 bfd_byte b[BYTES_IN_WORD];
252b5132 5680
f6e688f7
AM		 5681 memset (b, 0, BYTES_IN_WORD);
5682 if (bfd_bwrite (b, (bfd_size_type) BYTES_IN_WORD, abfd) != BYTES_IN_WORD)
116c20d2
NC		 5683 goto error_return;
5684 }
252b5132 5685
b34976b6 5686 return TRUE;
116c20d2
NC		 5687
5688 error_return:
5689 if (aout_info.contents != NULL)
5690 free (aout_info.contents);
5691 if (aout_info.relocs != NULL)
5692 free (aout_info.relocs);
5693 if (aout_info.symbol_map != NULL)
5694 free (aout_info.symbol_map);
5695 if (aout_info.output_syms != NULL)
5696 free (aout_info.output_syms);
5697 if (includes_hash_initialized)
5698 bfd_hash_table_free (&aout_info.includes.root);
5699 return FALSE;
252b5132 5700}
GDB Binutils - Deliverables
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