projects / deliverable / binutils-gdb.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
[PATCH v2 0/9] RISC-V: Support version controling for ISA standard extensions and CSR
[deliverable/binutils-gdb.git] / bfd / aoutx.h
CommitLineData
252b5132 1/* BFD semi-generic back-end for a.out binaries.
b3adc24a 2 Copyright (C) 1990-2020 Free Software Foundation, Inc.
252b5132
RH		 3 Written by Cygnus Support.
4
f7c33884 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
f7c33884
NC		 7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
cd123cb7 9 the Free Software Foundation; either version 3 of the License, or
f7c33884 10 (at your option) any later version.
252b5132 11
f7c33884
NC		 12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
252b5132 16
f7c33884
NC		 17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
cd123cb7
NC		 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
252b5132
RH		 21
22/*
23SECTION
24 a.out backends
25
252b5132
RH		 26DESCRIPTION
27
28 BFD supports a number of different flavours of a.out format,
29 though the major differences are only the sizes of the
30 structures on disk, and the shape of the relocation
31 information.
32
33 The support is split into a basic support file @file{aoutx.h}
34 and other files which derive functions from the base. One
35 derivation file is @file{aoutf1.h} (for a.out flavour 1), and
a8eb42a8
AM		 36 adds to the basic a.out functions support for sun3, sun4, and
37 386 a.out files, to create a target jump vector for a specific
38 target.
252b5132
RH		 39
40 This information is further split out into more specific files
41 for each machine, including @file{sunos.c} for sun3 and sun4,
5972ac73 42 and @file{demo64.c} for a demonstration of a 64 bit a.out format.
252b5132
RH		 43
44 The base file @file{aoutx.h} defines general mechanisms for
45 reading and writing records to and from disk and various
46 other methods which BFD requires. It is included by
47 @file{aout32.c} and @file{aout64.c} to form the names
48 <<aout_32_swap_exec_header_in>>, <<aout_64_swap_exec_header_in>>, etc.
49
50 As an example, this is what goes on to make the back end for a
51 sun4, from @file{aout32.c}:
52
53| #define ARCH_SIZE 32
54| #include "aoutx.h"
55
56 Which exports names:
57
58| ...
59| aout_32_canonicalize_reloc
60| aout_32_find_nearest_line
61| aout_32_get_lineno
62| aout_32_get_reloc_upper_bound
63| ...
64
65 from @file{sunos.c}:
66
67| #define TARGET_NAME "a.out-sunos-big"
6d00b590 68| #define VECNAME sparc_aout_sunos_be_vec
252b5132
RH		 69| #include "aoutf1.h"
70
71 requires all the names from @file{aout32.c}, and produces the jump vector
72
6d00b590 73| sparc_aout_sunos_be_vec
252b5132
RH		 74
75 The file @file{host-aout.c} is a special case. It is for a large set
76 of hosts that use ``more or less standard'' a.out files, and
77 for which cross-debugging is not interesting. It uses the
78 standard 32-bit a.out support routines, but determines the
79 file offsets and addresses of the text, data, and BSS
80 sections, the machine architecture and machine type, and the
81 entry point address, in a host-dependent manner. Once these
82 values have been determined, generic code is used to handle
83 the object file.
84
85 When porting it to run on a new system, you must supply:
86
87| HOST_PAGE_SIZE
88| HOST_SEGMENT_SIZE
89| HOST_MACHINE_ARCH (optional)
90| HOST_MACHINE_MACHINE (optional)
91| HOST_TEXT_START_ADDR
92| HOST_STACK_END_ADDR
93
94 in the file @file{../include/sys/h-@var{XXX}.h} (for your host). These
95 values, plus the structures and macros defined in @file{a.out.h} on
96 your host system, will produce a BFD target that will access
97 ordinary a.out files on your host. To configure a new machine
98 to use @file{host-aout.c}, specify:
99
100| TDEFAULTS = -DDEFAULT_VECTOR=host_aout_big_vec
101| TDEPFILES= host-aout.o trad-core.o
102
1110793a 103 in the @file{config/@var{XXX}.mt} file, and modify @file{configure.ac}
252b5132
RH		 104 to use the
105 @file{@var{XXX}.mt} file (by setting "<<bfd_target=XXX>>") when your
5ed6aba4 106 configuration is selected. */
252b5132
RH		 107
108/* Some assumptions:
109 * Any BFD with D_PAGED set is ZMAGIC, and vice versa.
110 Doesn't matter what the setting of WP_TEXT is on output, but it'll
111 get set on input.
112 * Any BFD with D_PAGED clear and WP_TEXT set is NMAGIC.
113 * Any BFD with both flags clear is OMAGIC.
114 (Just want to make these explicit, so the conditions tested in this
115 file make sense if you're more familiar with a.out than with BFD.) */
116
117#define KEEPIT udata.i
118
252b5132 119#include "sysdep.h"
3a551c7a 120#include <limits.h>
3db64b00 121#include "bfd.h"
3882b010 122#include "safe-ctype.h"
252b5132
RH		 123#include "bfdlink.h"
124
125#include "libaout.h"
126#include "libbfd.h"
127#include "aout/aout64.h"
128#include "aout/stab_gnu.h"
129#include "aout/ar.h"
130
252b5132
RH		 131/*
132SUBSECTION
133 Relocations
134
135DESCRIPTION
136 The file @file{aoutx.h} provides for both the @emph{standard}
137 and @emph{extended} forms of a.out relocation records.
138
a8eb42a8
AM		 139 The standard records contain only an address, a symbol index,
140 and a type field. The extended records also have a full
141 integer for an addend. */
252b5132 142
252b5132
RH		 143#ifndef CTOR_TABLE_RELOC_HOWTO
144#define CTOR_TABLE_RELOC_IDX 2
923f08ff
AM		 145#define CTOR_TABLE_RELOC_HOWTO(BFD) \
146 ((obj_reloc_entry_size (BFD) == RELOC_EXT_SIZE \
147 ? howto_table_ext : howto_table_std) \
148 + CTOR_TABLE_RELOC_IDX)
252b5132
RH		 149#endif
150
151#ifndef MY_swap_std_reloc_in
116c20d2 152#define MY_swap_std_reloc_in NAME (aout, swap_std_reloc_in)
252b5132
RH		 153#endif
154
1642229e 155#ifndef MY_swap_ext_reloc_in
116c20d2 156#define MY_swap_ext_reloc_in NAME (aout, swap_ext_reloc_in)
1642229e
HPN		 157#endif
158
252b5132 159#ifndef MY_swap_std_reloc_out
116c20d2 160#define MY_swap_std_reloc_out NAME (aout, swap_std_reloc_out)
252b5132
RH		 161#endif
162
1642229e 163#ifndef MY_swap_ext_reloc_out
116c20d2 164#define MY_swap_ext_reloc_out NAME (aout, swap_ext_reloc_out)
1642229e
HPN		 165#endif
166
252b5132
RH		 167#ifndef MY_final_link_relocate
168#define MY_final_link_relocate _bfd_final_link_relocate
169#endif
170
171#ifndef MY_relocate_contents
172#define MY_relocate_contents _bfd_relocate_contents
173#endif
174
116c20d2
NC		 175#define howto_table_ext NAME (aout, ext_howto_table)
176#define howto_table_std NAME (aout, std_howto_table)
252b5132
RH		 177
178reloc_howto_type howto_table_ext[] =
179{
07d6d2b8
AM		 180 /* Type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone. */
181 HOWTO (RELOC_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, 0, "8", FALSE, 0, 0x000000ff, FALSE),
182 HOWTO (RELOC_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, 0, "16", FALSE, 0, 0x0000ffff, FALSE),
183 HOWTO (RELOC_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "32", FALSE, 0, 0xffffffff, FALSE),
184 HOWTO (RELOC_DISP8, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0, "DISP8", FALSE, 0, 0x000000ff, FALSE),
185 HOWTO (RELOC_DISP16, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0, "DISP16", FALSE, 0, 0x0000ffff, FALSE),
186 HOWTO (RELOC_DISP32, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0, "DISP32", FALSE, 0, 0xffffffff, FALSE),
187 HOWTO (RELOC_WDISP30, 2, 2, 30, TRUE, 0, complain_overflow_signed, 0, "WDISP30", FALSE, 0, 0x3fffffff, FALSE),
188 HOWTO (RELOC_WDISP22, 2, 2, 22, TRUE, 0, complain_overflow_signed, 0, "WDISP22", FALSE, 0, 0x003fffff, FALSE),
189 HOWTO (RELOC_HI22, 10, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "HI22", FALSE, 0, 0x003fffff, FALSE),
190 HOWTO (RELOC_22, 0, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "22", FALSE, 0, 0x003fffff, FALSE),
191 HOWTO (RELOC_13, 0, 2, 13, FALSE, 0, complain_overflow_bitfield, 0, "13", FALSE, 0, 0x00001fff, FALSE),
192 HOWTO (RELOC_LO10, 0, 2, 10, FALSE, 0, complain_overflow_dont, 0, "LO10", FALSE, 0, 0x000003ff, FALSE),
193 HOWTO (RELOC_SFA_BASE,0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "SFA_BASE", FALSE, 0, 0xffffffff, FALSE),
194 HOWTO (RELOC_SFA_OFF13,0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "SFA_OFF13", FALSE, 0, 0xffffffff, FALSE),
195 HOWTO (RELOC_BASE10, 0, 2, 10, FALSE, 0, complain_overflow_dont, 0, "BASE10", FALSE, 0, 0x000003ff, FALSE),
196 HOWTO (RELOC_BASE13, 0, 2, 13, FALSE, 0, complain_overflow_signed, 0, "BASE13", FALSE, 0, 0x00001fff, FALSE),
197 HOWTO (RELOC_BASE22, 10, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "BASE22", FALSE, 0, 0x003fffff, FALSE),
198 HOWTO (RELOC_PC10, 0, 2, 10, TRUE, 0, complain_overflow_dont, 0, "PC10", FALSE, 0, 0x000003ff, TRUE),
199 HOWTO (RELOC_PC22, 10, 2, 22, TRUE, 0, complain_overflow_signed, 0, "PC22", FALSE, 0, 0x003fffff, TRUE),
200 HOWTO (RELOC_JMP_TBL, 2, 2, 30, TRUE, 0, complain_overflow_signed, 0, "JMP_TBL", FALSE, 0, 0x3fffffff, FALSE),
116c20d2
NC		 201 HOWTO (RELOC_SEGOFF16,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "SEGOFF16", FALSE, 0, 0x00000000, FALSE),
202 HOWTO (RELOC_GLOB_DAT,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "GLOB_DAT", FALSE, 0, 0x00000000, FALSE),
203 HOWTO (RELOC_JMP_SLOT,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "JMP_SLOT", FALSE, 0, 0x00000000, FALSE),
204 HOWTO (RELOC_RELATIVE,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "RELATIVE", FALSE, 0, 0x00000000, FALSE),
07d6d2b8
AM		 205 HOWTO (0, 0, 3, 0, FALSE, 0, complain_overflow_dont, 0, "R_SPARC_NONE",FALSE, 0, 0x00000000, TRUE),
206 HOWTO (0, 0, 3, 0, FALSE, 0, complain_overflow_dont, 0, "R_SPARC_NONE",FALSE, 0, 0x00000000, TRUE),
252b5132 207#define RELOC_SPARC_REV32 RELOC_WDISP19
07d6d2b8 208 HOWTO (RELOC_SPARC_REV32, 0, 2, 32, FALSE, 0, complain_overflow_dont, 0,"R_SPARC_REV32",FALSE, 0, 0xffffffff, FALSE),
252b5132
RH		 209};
210
211/* Convert standard reloc records to "arelent" format (incl byte swap). */
212
5ed6aba4
NC		 213reloc_howto_type howto_table_std[] =
214{
07d6d2b8
AM		 215 /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone. */
216HOWTO ( 0, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,0,"8", TRUE, 0x000000ff,0x000000ff, FALSE),
217HOWTO ( 1, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,0,"16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
218HOWTO ( 2, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"32", TRUE, 0xffffffff,0xffffffff, FALSE),
219HOWTO ( 3, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,0,"64", TRUE, 0xdeaddead,0xdeaddead, FALSE),
220HOWTO ( 4, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0,"DISP8", TRUE, 0x000000ff,0x000000ff, FALSE),
221HOWTO ( 5, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0,"DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
222HOWTO ( 6, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0,"DISP32", TRUE, 0xffffffff,0xffffffff, FALSE),
223HOWTO ( 7, 0, 4, 64, TRUE, 0, complain_overflow_signed, 0,"DISP64", TRUE, 0xfeedface,0xfeedface, FALSE),
224HOWTO ( 8, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"GOT_REL", FALSE, 0,0x00000000, FALSE),
225HOWTO ( 9, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,0,"BASE16", FALSE,0xffffffff,0xffffffff, FALSE),
226HOWTO (10, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"BASE32", FALSE,0xffffffff,0xffffffff, FALSE),
5f771d47
ILT		 227EMPTY_HOWTO (-1),
228EMPTY_HOWTO (-1),
229EMPTY_HOWTO (-1),
230EMPTY_HOWTO (-1),
231EMPTY_HOWTO (-1),
07d6d2b8 232 HOWTO (16, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"JMP_TABLE", FALSE, 0,0x00000000, FALSE),
5f771d47
ILT		 233EMPTY_HOWTO (-1),
234EMPTY_HOWTO (-1),
235EMPTY_HOWTO (-1),
236EMPTY_HOWTO (-1),
237EMPTY_HOWTO (-1),
238EMPTY_HOWTO (-1),
239EMPTY_HOWTO (-1),
240EMPTY_HOWTO (-1),
241EMPTY_HOWTO (-1),
242EMPTY_HOWTO (-1),
243EMPTY_HOWTO (-1),
244EMPTY_HOWTO (-1),
245EMPTY_HOWTO (-1),
246EMPTY_HOWTO (-1),
247EMPTY_HOWTO (-1),
07d6d2b8 248 HOWTO (32, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"RELATIVE", FALSE, 0,0x00000000, FALSE),
5f771d47
ILT		 249EMPTY_HOWTO (-1),
250EMPTY_HOWTO (-1),
251EMPTY_HOWTO (-1),
252EMPTY_HOWTO (-1),
253EMPTY_HOWTO (-1),
254EMPTY_HOWTO (-1),
255EMPTY_HOWTO (-1),
07d6d2b8 256 HOWTO (40, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"BASEREL", FALSE, 0,0x00000000, FALSE),
252b5132
RH		 257};
258
923f08ff 259#define TABLE_SIZE(TABLE) (sizeof (TABLE) / sizeof (TABLE[0]))
252b5132
RH		 260
261reloc_howto_type *
116c20d2 262NAME (aout, reloc_type_lookup) (bfd *abfd, bfd_reloc_code_real_type code)
252b5132 263{
116c20d2
NC		 264#define EXT(i, j) case i: return & howto_table_ext [j]
265#define STD(i, j) case i: return & howto_table_std [j]
252b5132 266 int ext = obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE;
f7c33884 267
252b5132 268 if (code == BFD_RELOC_CTOR)
30d10e9e 269 switch (bfd_arch_bits_per_address (abfd))
252b5132
RH		 270 {
271 case 32:
272 code = BFD_RELOC_32;
273 break;
274 case 64:
275 code = BFD_RELOC_64;
276 break;
277 }
f7c33884 278
252b5132
RH		 279 if (ext)
280 switch (code)
281 {
1642229e
HPN		 282 EXT (BFD_RELOC_8, 0);
283 EXT (BFD_RELOC_16, 1);
252b5132
RH		 284 EXT (BFD_RELOC_32, 2);
285 EXT (BFD_RELOC_HI22, 8);
286 EXT (BFD_RELOC_LO10, 11);
287 EXT (BFD_RELOC_32_PCREL_S2, 6);
288 EXT (BFD_RELOC_SPARC_WDISP22, 7);
289 EXT (BFD_RELOC_SPARC13, 10);
290 EXT (BFD_RELOC_SPARC_GOT10, 14);
291 EXT (BFD_RELOC_SPARC_BASE13, 15);
292 EXT (BFD_RELOC_SPARC_GOT13, 15);
293 EXT (BFD_RELOC_SPARC_GOT22, 16);
294 EXT (BFD_RELOC_SPARC_PC10, 17);
295 EXT (BFD_RELOC_SPARC_PC22, 18);
296 EXT (BFD_RELOC_SPARC_WPLT30, 19);
297 EXT (BFD_RELOC_SPARC_REV32, 26);
116c20d2
NC		 298 default:
299 return NULL;
252b5132
RH		 300 }
301 else
f7c33884 302 /* std relocs. */
252b5132
RH		 303 switch (code)
304 {
2846975a 305 STD (BFD_RELOC_8, 0);
252b5132
RH		 306 STD (BFD_RELOC_16, 1);
307 STD (BFD_RELOC_32, 2);
308 STD (BFD_RELOC_8_PCREL, 4);
309 STD (BFD_RELOC_16_PCREL, 5);
310 STD (BFD_RELOC_32_PCREL, 6);
311 STD (BFD_RELOC_16_BASEREL, 9);
312 STD (BFD_RELOC_32_BASEREL, 10);
116c20d2
NC		 313 default:
314 return NULL;
252b5132
RH		 315 }
316}
317
157090f7
AM		 318reloc_howto_type *
319NAME (aout, reloc_name_lookup) (bfd *abfd, const char *r_name)
320{
321 unsigned int i, size;
322 reloc_howto_type *howto_table;
323
324 if (obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE)
325 {
326 howto_table = howto_table_ext;
327 size = sizeof (howto_table_ext) / sizeof (howto_table_ext[0]);
328 }
329 else
330 {
331 howto_table = howto_table_std;
332 size = sizeof (howto_table_std) / sizeof (howto_table_std[0]);
333 }
334
335 for (i = 0; i < size; i++)
336 if (howto_table[i].name != NULL
337 && strcasecmp (howto_table[i].name, r_name) == 0)
338 return &howto_table[i];
339
340 return NULL;
341}
342
252b5132
RH		 343/*
344SUBSECTION
345 Internal entry points
346
347DESCRIPTION
348 @file{aoutx.h} exports several routines for accessing the
349 contents of an a.out file, which are gathered and exported in
350 turn by various format specific files (eg sunos.c).
252b5132
RH		 351*/
352
353/*
354FUNCTION
355 aout_@var{size}_swap_exec_header_in
356
357SYNOPSIS
358 void aout_@var{size}_swap_exec_header_in,
07d6d2b8
AM		 359 (bfd *abfd,
360 struct external_exec *bytes,
361 struct internal_exec *execp);
252b5132
RH		 362
363DESCRIPTION
364 Swap the information in an executable header @var{raw_bytes} taken
365 from a raw byte stream memory image into the internal exec header
366 structure @var{execp}.
367*/
368
369#ifndef NAME_swap_exec_header_in
370void
116c20d2
NC		 371NAME (aout, swap_exec_header_in) (bfd *abfd,
372 struct external_exec *bytes,
373 struct internal_exec *execp)
252b5132 374{
252b5132
RH		 375 /* The internal_exec structure has some fields that are unused in this
376 configuration (IE for i960), so ensure that all such uninitialized
377 fields are zero'd out. There are places where two of these structs
0ef5a5bd 378 are memcmp'd, and thus the contents do matter. */
116c20d2 379 memset ((void *) execp, 0, sizeof (struct internal_exec));
252b5132 380 /* Now fill in fields in the execp, from the bytes in the raw data. */
dc810e39 381 execp->a_info = H_GET_32 (abfd, bytes->e_info);
252b5132
RH		 382 execp->a_text = GET_WORD (abfd, bytes->e_text);
383 execp->a_data = GET_WORD (abfd, bytes->e_data);
384 execp->a_bss = GET_WORD (abfd, bytes->e_bss);
385 execp->a_syms = GET_WORD (abfd, bytes->e_syms);
386 execp->a_entry = GET_WORD (abfd, bytes->e_entry);
387 execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
388 execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
389}
116c20d2 390#define NAME_swap_exec_header_in NAME (aout, swap_exec_header_in)
252b5132
RH		 391#endif
392
393/*
394FUNCTION
395 aout_@var{size}_swap_exec_header_out
396
397SYNOPSIS
398 void aout_@var{size}_swap_exec_header_out
399 (bfd *abfd,
400 struct internal_exec *execp,
401 struct external_exec *raw_bytes);
402
403DESCRIPTION
404 Swap the information in an internal exec header structure
405 @var{execp} into the buffer @var{raw_bytes} ready for writing to disk.
406*/
407void
116c20d2
NC		 408NAME (aout, swap_exec_header_out) (bfd *abfd,
409 struct internal_exec *execp,
410 struct external_exec *bytes)
252b5132 411{
0ef5a5bd 412 /* Now fill in fields in the raw data, from the fields in the exec struct. */
dc810e39 413 H_PUT_32 (abfd, execp->a_info , bytes->e_info);
252b5132
RH		 414 PUT_WORD (abfd, execp->a_text , bytes->e_text);
415 PUT_WORD (abfd, execp->a_data , bytes->e_data);
416 PUT_WORD (abfd, execp->a_bss , bytes->e_bss);
417 PUT_WORD (abfd, execp->a_syms , bytes->e_syms);
418 PUT_WORD (abfd, execp->a_entry , bytes->e_entry);
419 PUT_WORD (abfd, execp->a_trsize, bytes->e_trsize);
420 PUT_WORD (abfd, execp->a_drsize, bytes->e_drsize);
421}
422
423/* Make all the section for an a.out file. */
424
b34976b6 425bfd_boolean
116c20d2 426NAME (aout, make_sections) (bfd *abfd)
252b5132 427{
116c20d2 428 if (obj_textsec (abfd) == NULL && bfd_make_section (abfd, ".text") == NULL)
b34976b6 429 return FALSE;
116c20d2 430 if (obj_datasec (abfd) == NULL && bfd_make_section (abfd, ".data") == NULL)
b34976b6 431 return FALSE;
116c20d2 432 if (obj_bsssec (abfd) == NULL && bfd_make_section (abfd, ".bss") == NULL)
b34976b6
AM		 433 return FALSE;
434 return TRUE;
252b5132
RH		 435}
436
437/*
438FUNCTION
439 aout_@var{size}_some_aout_object_p
440
441SYNOPSIS
442 const bfd_target *aout_@var{size}_some_aout_object_p
443 (bfd *abfd,
07d6d2b8 444 struct internal_exec *execp,
116c20d2 445 const bfd_target *(*callback_to_real_object_p) (bfd *));
252b5132
RH		 446
447DESCRIPTION
448 Some a.out variant thinks that the file open in @var{abfd}
449 checking is an a.out file. Do some more checking, and set up
450 for access if it really is. Call back to the calling
451 environment's "finish up" function just before returning, to
452 handle any last-minute setup.
453*/
454
cb001c0d 455bfd_cleanup
116c20d2
NC		 456NAME (aout, some_aout_object_p) (bfd *abfd,
457 struct internal_exec *execp,
cb001c0d 458 bfd_cleanup (*callback_to_real_object_p) (bfd *))
252b5132
RH		 459{
460 struct aout_data_struct *rawptr, *oldrawptr;
cb001c0d 461 bfd_cleanup result;
986f0783 462 size_t amt = sizeof (* rawptr);
252b5132 463
a50b1753 464 rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
252b5132 465 if (rawptr == NULL)
116c20d2 466 return NULL;
252b5132
RH		 467
468 oldrawptr = abfd->tdata.aout_data;
469 abfd->tdata.aout_data = rawptr;
470
dc12032b 471 /* Copy the contents of the old tdata struct. */
252b5132
RH		 472 if (oldrawptr != NULL)
473 *abfd->tdata.aout_data = *oldrawptr;
474
475 abfd->tdata.aout_data->a.hdr = &rawptr->e;
f7c33884
NC		 476 /* Copy in the internal_exec struct. */
477 *(abfd->tdata.aout_data->a.hdr) = *execp;
252b5132
RH		 478 execp = abfd->tdata.aout_data->a.hdr;
479
f7c33884 480 /* Set the file flags. */
252b5132
RH		 481 abfd->flags = BFD_NO_FLAGS;
482 if (execp->a_drsize || execp->a_trsize)
483 abfd->flags |= HAS_RELOC;
f7c33884 484 /* Setting of EXEC_P has been deferred to the bottom of this function. */
252b5132
RH		 485 if (execp->a_syms)
486 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
bbb1afc8 487 if (N_DYNAMIC (execp))
252b5132
RH		 488 abfd->flags |= DYNAMIC;
489
bbb1afc8 490 if (N_MAGIC (execp) == ZMAGIC)
252b5132
RH		 491 {
492 abfd->flags |= D_PAGED | WP_TEXT;
493 adata (abfd).magic = z_magic;
494 }
bbb1afc8 495 else if (N_MAGIC (execp) == QMAGIC)
252b5132
RH		 496 {
497 abfd->flags |= D_PAGED | WP_TEXT;
498 adata (abfd).magic = z_magic;
499 adata (abfd).subformat = q_magic_format;
500 }
bbb1afc8 501 else if (N_MAGIC (execp) == NMAGIC)
252b5132
RH		 502 {
503 abfd->flags |= WP_TEXT;
504 adata (abfd).magic = n_magic;
505 }
bbb1afc8
AM		 506 else if (N_MAGIC (execp) == OMAGIC
507 || N_MAGIC (execp) == BMAGIC)
252b5132
RH		 508 adata (abfd).magic = o_magic;
509 else
116c20d2
NC		 510 /* Should have been checked with N_BADMAG before this routine
511 was called. */
512 abort ();
252b5132 513
ed48ec2e 514 abfd->start_address = execp->a_entry;
252b5132 515
116c20d2 516 obj_aout_symbols (abfd) = NULL;
ed48ec2e 517 abfd->symcount = execp->a_syms / sizeof (struct external_nlist);
252b5132
RH		 518
519 /* The default relocation entry size is that of traditional V7 Unix. */
520 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
521
0ef5a5bd 522 /* The default symbol entry size is that of traditional Unix. */
252b5132
RH		 523 obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE;
524
525#ifdef USE_MMAP
526 bfd_init_window (&obj_aout_sym_window (abfd));
527 bfd_init_window (&obj_aout_string_window (abfd));
528#endif
529 obj_aout_external_syms (abfd) = NULL;
530 obj_aout_external_strings (abfd) = NULL;
531 obj_aout_sym_hashes (abfd) = NULL;
532
116c20d2 533 if (! NAME (aout, make_sections) (abfd))
487e54f2 534 goto error_ret;
252b5132 535
eea6121a
AM		 536 obj_datasec (abfd)->size = execp->a_data;
537 obj_bsssec (abfd)->size = execp->a_bss;
252b5132
RH		 538
539 obj_textsec (abfd)->flags =
540 (execp->a_trsize != 0
541 ? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC)
542 : (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS));
543 obj_datasec (abfd)->flags =
544 (execp->a_drsize != 0
545 ? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC)
546 : (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS));
547 obj_bsssec (abfd)->flags = SEC_ALLOC;
548
549#ifdef THIS_IS_ONLY_DOCUMENTATION
550 /* The common code can't fill in these things because they depend
551 on either the start address of the text segment, the rounding
552 up of virtual addresses between segments, or the starting file
553 position of the text segment -- all of which varies among different
554 versions of a.out. */
555
556 /* Call back to the format-dependent code to fill in the rest of the
557 fields and do any further cleanup. Things that should be filled
558 in by the callback: */
559
560 struct exec *execp = exec_hdr (abfd);
561
bbb1afc8 562 obj_textsec (abfd)->size = N_TXTSIZE (execp);
f7c33884 563 /* Data and bss are already filled in since they're so standard. */
252b5132 564
f7c33884 565 /* The virtual memory addresses of the sections. */
bbb1afc8
AM		 566 obj_textsec (abfd)->vma = N_TXTADDR (execp);
567 obj_datasec (abfd)->vma = N_DATADDR (execp);
568 obj_bsssec (abfd)->vma = N_BSSADDR (execp);
252b5132 569
f7c33884 570 /* The file offsets of the sections. */
bbb1afc8
AM		 571 obj_textsec (abfd)->filepos = N_TXTOFF (execp);
572 obj_datasec (abfd)->filepos = N_DATOFF (execp);
252b5132 573
f7c33884 574 /* The file offsets of the relocation info. */
bbb1afc8
AM		 575 obj_textsec (abfd)->rel_filepos = N_TRELOFF (execp);
576 obj_datasec (abfd)->rel_filepos = N_DRELOFF (execp);
252b5132
RH		 577
578 /* The file offsets of the string table and symbol table. */
bbb1afc8
AM		 579 obj_str_filepos (abfd) = N_STROFF (execp);
580 obj_sym_filepos (abfd) = N_SYMOFF (execp);
252b5132
RH		 581
582 /* Determine the architecture and machine type of the object file. */
bbb1afc8 583 switch (N_MACHTYPE (exec_hdr (abfd)))
923f08ff
AM		 584 {
585 default:
586 abfd->obj_arch = bfd_arch_obscure;
587 break;
588 }
252b5132 589
923f08ff
AM		 590 adata (abfd)->page_size = TARGET_PAGE_SIZE;
591 adata (abfd)->segment_size = SEGMENT_SIZE;
592 adata (abfd)->exec_bytes_size = EXEC_BYTES_SIZE;
252b5132 593
cb001c0d 594 return _bfd_no_cleanup
252b5132
RH		 595
596 /* The architecture is encoded in various ways in various a.out variants,
597 or is not encoded at all in some of them. The relocation size depends
598 on the architecture and the a.out variant. Finally, the return value
599 is the bfd_target vector in use. If an error occurs, return zero and
600 set bfd_error to the appropriate error code.
601
602 Formats such as b.out, which have additional fields in the a.out
603 header, should cope with them in this callback as well. */
604#endif /* DOCUMENTATION */
605
beb0d161 606 result = (*callback_to_real_object_p) (abfd);
252b5132
RH		 607
608 /* Now that the segment addresses have been worked out, take a better
609 guess at whether the file is executable. If the entry point
610 is within the text segment, assume it is. (This makes files
611 executable even if their entry point address is 0, as long as
612 their text starts at zero.).
613
614 This test had to be changed to deal with systems where the text segment
615 runs at a different location than the default. The problem is that the
616 entry address can appear to be outside the text segment, thus causing an
617 erroneous conclusion that the file isn't executable.
618
619 To fix this, we now accept any non-zero entry point as an indication of
620 executability. This will work most of the time, since only the linker
0ef5a5bd 621 sets the entry point, and that is likely to be non-zero for most systems. */
252b5132
RH		 622
623 if (execp->a_entry != 0
923f08ff
AM		 624 || (execp->a_entry >= obj_textsec (abfd)->vma
625 && execp->a_entry < (obj_textsec (abfd)->vma
4c1534c7
AM		 626 + obj_textsec (abfd)->size)
627 && execp->a_trsize == 0
628 && execp->a_drsize == 0))
252b5132
RH		 629 abfd->flags |= EXEC_P;
630#ifdef STAT_FOR_EXEC
631 else
632 {
633 struct stat stat_buf;
634
635 /* The original heuristic doesn't work in some important cases.
07d6d2b8
AM		 636 The a.out file has no information about the text start
637 address. For files (like kernels) linked to non-standard
638 addresses (ld -Ttext nnn) the entry point may not be between
639 the default text start (obj_textsec(abfd)->vma) and
640 (obj_textsec(abfd)->vma) + text size. This is not just a mach
641 issue. Many kernels are loaded at non standard addresses. */
252b5132
RH		 642 if (abfd->iostream != NULL
643 && (abfd->flags & BFD_IN_MEMORY) == 0
923f08ff 644 && (fstat (fileno ((FILE *) (abfd->iostream)), &stat_buf) == 0)
252b5132
RH		 645 && ((stat_buf.st_mode & 0111) != 0))
646 abfd->flags |= EXEC_P;
647 }
648#endif /* STAT_FOR_EXEC */
649
650 if (result)
0e71e495 651 return result;
487e54f2
AM		 652
653 error_ret:
654 bfd_release (abfd, rawptr);
655 abfd->tdata.aout_data = oldrawptr;
656 return NULL;
252b5132
RH		 657}
658
659/*
660FUNCTION
661 aout_@var{size}_mkobject
662
663SYNOPSIS
b34976b6 664 bfd_boolean aout_@var{size}_mkobject, (bfd *abfd);
252b5132
RH		 665
666DESCRIPTION
667 Initialize BFD @var{abfd} for use with a.out files.
668*/
669
b34976b6 670bfd_boolean
116c20d2 671NAME (aout, mkobject) (bfd *abfd)
252b5132 672{
dc810e39 673 struct aout_data_struct *rawptr;
986f0783 674 size_t amt = sizeof (* rawptr);
252b5132
RH		 675
676 bfd_set_error (bfd_error_system_call);
677
a50b1753 678 rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
252b5132 679 if (rawptr == NULL)
b34976b6 680 return FALSE;
252b5132
RH		 681
682 abfd->tdata.aout_data = rawptr;
683 exec_hdr (abfd) = &(rawptr->e);
684
116c20d2
NC		 685 obj_textsec (abfd) = NULL;
686 obj_datasec (abfd) = NULL;
687 obj_bsssec (abfd) = NULL;
252b5132 688
b34976b6 689 return TRUE;
252b5132
RH		 690}
691
252b5132
RH		 692/*
693FUNCTION
694 aout_@var{size}_machine_type
695
696SYNOPSIS
697 enum machine_type aout_@var{size}_machine_type
698 (enum bfd_architecture arch,
116c20d2 699 unsigned long machine,
07d6d2b8 700 bfd_boolean *unknown);
252b5132
RH		 701
702DESCRIPTION
703 Keep track of machine architecture and machine type for
704 a.out's. Return the <<machine_type>> for a particular
705 architecture and machine, or <<M_UNKNOWN>> if that exact architecture
706 and machine can't be represented in a.out format.
707
708 If the architecture is understood, machine type 0 (default)
709 is always understood.
710*/
711
712enum machine_type
116c20d2
NC		 713NAME (aout, machine_type) (enum bfd_architecture arch,
714 unsigned long machine,
715 bfd_boolean *unknown)
252b5132
RH		 716{
717 enum machine_type arch_flags;
718
719 arch_flags = M_UNKNOWN;
b34976b6 720 *unknown = TRUE;
252b5132 721
923f08ff
AM		 722 switch (arch)
723 {
724 case bfd_arch_sparc:
725 if (machine == 0
726 || machine == bfd_mach_sparc
727 || machine == bfd_mach_sparc_sparclite
728 || machine == bfd_mach_sparc_sparclite_le
74d26813
L		 729 || machine == bfd_mach_sparc_v8plus
730 || machine == bfd_mach_sparc_v8plusa
731 || machine == bfd_mach_sparc_v8plusb
07d6d2b8
AM		 732 || machine == bfd_mach_sparc_v8plusc
733 || machine == bfd_mach_sparc_v8plusd
734 || machine == bfd_mach_sparc_v8pluse
735 || machine == bfd_mach_sparc_v8plusv
736 || machine == bfd_mach_sparc_v8plusm
737 || machine == bfd_mach_sparc_v8plusm8
74d26813
L		 738 || machine == bfd_mach_sparc_v9
739 || machine == bfd_mach_sparc_v9a
4f26fb3a 740 || machine == bfd_mach_sparc_v9b
07d6d2b8
AM		 741 || machine == bfd_mach_sparc_v9c
742 || machine == bfd_mach_sparc_v9d
743 || machine == bfd_mach_sparc_v9e
744 || machine == bfd_mach_sparc_v9v
64517994 745 || machine == bfd_mach_sparc_v9m
07d6d2b8 746 || machine == bfd_mach_sparc_v9m8)
923f08ff
AM		 747 arch_flags = M_SPARC;
748 else if (machine == bfd_mach_sparc_sparclet)
749 arch_flags = M_SPARCLET;
750 break;
751
923f08ff 752 case bfd_arch_i386:
3b77b1d5
AM		 753 if (machine == 0
754 || machine == bfd_mach_i386_i386
755 || machine == bfd_mach_i386_i386_intel_syntax)
923f08ff 756 arch_flags = M_386;
252b5132 757 break;
923f08ff 758
923f08ff
AM		 759 case bfd_arch_arm:
760 if (machine == 0)
761 arch_flags = M_ARM;
252b5132 762 break;
252b5132 763
923f08ff
AM		 764 case bfd_arch_mips:
765 switch (machine)
766 {
767 case 0:
768 case bfd_mach_mips3000:
769 case bfd_mach_mips3900:
770 arch_flags = M_MIPS1;
771 break;
772 case bfd_mach_mips6000:
773 arch_flags = M_MIPS2;
774 break;
775 case bfd_mach_mips4000:
776 case bfd_mach_mips4010:
777 case bfd_mach_mips4100:
778 case bfd_mach_mips4300:
779 case bfd_mach_mips4400:
780 case bfd_mach_mips4600:
781 case bfd_mach_mips4650:
782 case bfd_mach_mips8000:
0d2e43ed 783 case bfd_mach_mips9000:
923f08ff
AM		 784 case bfd_mach_mips10000:
785 case bfd_mach_mips12000:
3aa3176b
TS		 786 case bfd_mach_mips14000:
787 case bfd_mach_mips16000:
923f08ff
AM		 788 case bfd_mach_mips16:
789 case bfd_mach_mipsisa32:
af7ee8bf 790 case bfd_mach_mipsisa32r2:
ae52f483
AB		 791 case bfd_mach_mipsisa32r3:
792 case bfd_mach_mipsisa32r5:
7361da2c 793 case bfd_mach_mipsisa32r6:
923f08ff
AM		 794 case bfd_mach_mips5:
795 case bfd_mach_mipsisa64:
5f74bc13 796 case bfd_mach_mipsisa64r2:
ae52f483
AB		 797 case bfd_mach_mipsisa64r3:
798 case bfd_mach_mipsisa64r5:
7361da2c 799 case bfd_mach_mipsisa64r6:
923f08ff 800 case bfd_mach_mips_sb1:
52b6b6b9 801 case bfd_mach_mips_xlr:
923f08ff
AM		 802 /* FIXME: These should be MIPS3, MIPS4, MIPS16, MIPS32, etc. */
803 arch_flags = M_MIPS2;
804 break;
805 default:
806 arch_flags = M_UNKNOWN;
807 break;
808 }
809 break;
810
811 case bfd_arch_ns32k:
812 switch (machine)
813 {
07d6d2b8 814 case 0: arch_flags = M_NS32532; break;
923f08ff
AM		 815 case 32032: arch_flags = M_NS32032; break;
816 case 32532: arch_flags = M_NS32532; break;
817 default: arch_flags = M_UNKNOWN; break;
818 }
819 break;
252b5132 820
923f08ff 821 case bfd_arch_vax:
b34976b6 822 *unknown = FALSE;
923f08ff 823 break;
06c15ad7 824
923f08ff
AM		 825 case bfd_arch_cris:
826 if (machine == 0 || machine == 255)
827 arch_flags = M_CRIS;
828 break;
829
830 default:
831 arch_flags = M_UNKNOWN;
832 }
252b5132
RH		 833
834 if (arch_flags != M_UNKNOWN)
b34976b6 835 *unknown = FALSE;
252b5132
RH		 836
837 return arch_flags;
838}
839
252b5132
RH		 840/*
841FUNCTION
842 aout_@var{size}_set_arch_mach
843
844SYNOPSIS
b34976b6 845 bfd_boolean aout_@var{size}_set_arch_mach,
252b5132
RH		 846 (bfd *,
847 enum bfd_architecture arch,
116c20d2 848 unsigned long machine);
252b5132
RH		 849
850DESCRIPTION
851 Set the architecture and the machine of the BFD @var{abfd} to the
852 values @var{arch} and @var{machine}. Verify that @var{abfd}'s format
853 can support the architecture required.
854*/
855
b34976b6 856bfd_boolean
116c20d2
NC		 857NAME (aout, set_arch_mach) (bfd *abfd,
858 enum bfd_architecture arch,
859 unsigned long machine)
252b5132
RH		 860{
861 if (! bfd_default_set_arch_mach (abfd, arch, machine))
b34976b6 862 return FALSE;
252b5132
RH		 863
864 if (arch != bfd_arch_unknown)
865 {
b34976b6 866 bfd_boolean unknown;
252b5132 867
116c20d2 868 NAME (aout, machine_type) (arch, machine, &unknown);
252b5132 869 if (unknown)
b34976b6 870 return FALSE;
252b5132
RH		 871 }
872
f7c33884 873 /* Determine the size of a relocation entry. */
923f08ff
AM		 874 switch (arch)
875 {
876 case bfd_arch_sparc:
923f08ff
AM		 877 case bfd_arch_mips:
878 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
879 break;
880 default:
881 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
882 break;
883 }
252b5132 884
923f08ff 885 return (*aout_backend_info (abfd)->set_sizes) (abfd);
252b5132
RH		 886}
887
888static void
116c20d2 889adjust_o_magic (bfd *abfd, struct internal_exec *execp)
252b5132
RH		 890{
891 file_ptr pos = adata (abfd).exec_bytes_size;
892 bfd_vma vma = 0;
893 int pad = 0;
dda2980f
AM		 894 asection *text = obj_textsec (abfd);
895 asection *data = obj_datasec (abfd);
896 asection *bss = obj_bsssec (abfd);
252b5132
RH		 897
898 /* Text. */
dda2980f
AM		 899 text->filepos = pos;
900 if (!text->user_set_vma)
901 text->vma = vma;
252b5132 902 else
dda2980f 903 vma = text->vma;
252b5132 904
dda2980f
AM		 905 pos += execp->a_text;
906 vma += execp->a_text;
252b5132
RH		 907
908 /* Data. */
dda2980f 909 if (!data->user_set_vma)
252b5132 910 {
252b5132
RH		 911 pos += pad;
912 vma += pad;
dda2980f 913 data->vma = vma;
252b5132
RH		 914 }
915 else
dda2980f
AM		 916 vma = data->vma;
917 execp->a_text += pad;
918
919 data->filepos = pos;
920 pos += data->size;
921 vma += data->size;
252b5132
RH		 922
923 /* BSS. */
dda2980f 924 if (!bss->user_set_vma)
252b5132 925 {
252b5132
RH		 926 pos += pad;
927 vma += pad;
dda2980f 928 bss->vma = vma;
252b5132
RH		 929 }
930 else
931 {
08da05b0 932 /* The VMA of the .bss section is set by the VMA of the
07d6d2b8
AM		 933 .data section plus the size of the .data section. We may
934 need to add padding bytes to make this true. */
dda2980f
AM		 935 pad = bss->vma - vma;
936 if (pad < 0)
937 pad = 0;
938 pos += pad;
252b5132 939 }
dda2980f
AM		 940 execp->a_data = data->size + pad;
941 bss->filepos = pos;
942 execp->a_bss = bss->size;
252b5132 943
bbb1afc8 944 N_SET_MAGIC (execp, OMAGIC);
252b5132
RH		 945}
946
947static void
116c20d2 948adjust_z_magic (bfd *abfd, struct internal_exec *execp)
252b5132
RH		 949{
950 bfd_size_type data_pad, text_pad;
951 file_ptr text_end;
dc810e39 952 const struct aout_backend_data *abdp;
116c20d2
NC		 953 /* TRUE if text includes exec header. */
954 bfd_boolean ztih;
dda2980f
AM		 955 asection *text = obj_textsec (abfd);
956 asection *data = obj_datasec (abfd);
957 asection *bss = obj_bsssec (abfd);
0ef5a5bd 958
252b5132
RH		 959 abdp = aout_backend_info (abfd);
960
961 /* Text. */
962 ztih = (abdp != NULL
963 && (abdp->text_includes_header
964 || obj_aout_subformat (abfd) == q_magic_format));
dda2980f
AM		 965 text->filepos = (ztih
966 ? adata (abfd).exec_bytes_size
967 : adata (abfd).zmagic_disk_block_size);
968 if (!text->user_set_vma)
252b5132
RH		 969 {
970 /* ?? Do we really need to check for relocs here? */
dda2980f
AM		 971 text->vma = ((abfd->flags & HAS_RELOC)
972 ? 0
973 : (ztih
974 ? abdp->default_text_vma + adata (abfd).exec_bytes_size
975 : abdp->default_text_vma));
252b5132
RH		 976 text_pad = 0;
977 }
978 else
979 {
980 /* The .text section is being loaded at an unusual address. We
07d6d2b8
AM		 981 may need to pad it such that the .data section starts at a page
982 boundary. */
252b5132 983 if (ztih)
dda2980f 984 text_pad = ((text->filepos - text->vma)
252b5132
RH		 985 & (adata (abfd).page_size - 1));
986 else
dda2980f 987 text_pad = (-text->vma
252b5132
RH		 988 & (adata (abfd).page_size - 1));
989 }
990
991 /* Find start of data. */
992 if (ztih)
993 {
dda2980f 994 text_end = text->filepos + execp->a_text;
252b5132
RH		 995 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
996 }
997 else
998 {
999 /* Note that if page_size == zmagic_disk_block_size, then
1000 filepos == page_size, and this case is the same as the ztih
1001 case. */
dda2980f 1002 text_end = execp->a_text;
252b5132 1003 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
dda2980f 1004 text_end += text->filepos;
252b5132 1005 }
dda2980f 1006 execp->a_text += text_pad;
252b5132
RH		 1007
1008 /* Data. */
dda2980f 1009 if (!data->user_set_vma)
252b5132
RH		 1010 {
1011 bfd_vma vma;
dda2980f
AM		 1012 vma = text->vma + execp->a_text;
1013 data->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
252b5132
RH		 1014 }
1015 if (abdp && abdp->zmagic_mapped_contiguous)
1016 {
dda2980f 1017 text_pad = data->vma - (text->vma + execp->a_text);
dee0a8f4
NC		 1018 /* Only pad the text section if the data
1019 section is going to be placed after it. */
1020 if (text_pad > 0)
dda2980f 1021 execp->a_text += text_pad;
252b5132 1022 }
dda2980f 1023 data->filepos = text->filepos + execp->a_text;
0ef5a5bd 1024
252b5132 1025 /* Fix up exec header while we're at it. */
252b5132 1026 if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted)))
923f08ff 1027 execp->a_text += adata (abfd).exec_bytes_size;
252b5132 1028 if (obj_aout_subformat (abfd) == q_magic_format)
bbb1afc8 1029 N_SET_MAGIC (execp, QMAGIC);
252b5132 1030 else
bbb1afc8 1031 N_SET_MAGIC (execp, ZMAGIC);
252b5132
RH		 1032
1033 /* Spec says data section should be rounded up to page boundary. */
dda2980f
AM		 1034 execp->a_data = align_power (data->size, bss->alignment_power);
1035 execp->a_data = BFD_ALIGN (execp->a_data, adata (abfd).page_size);
1036 data_pad = execp->a_data - data->size;
252b5132
RH		 1037
1038 /* BSS. */
dda2980f
AM		 1039 if (!bss->user_set_vma)
1040 bss->vma = data->vma + execp->a_data;
252b5132
RH		 1041 /* If the BSS immediately follows the data section and extra space
1042 in the page is left after the data section, fudge data
1043 in the header so that the bss section looks smaller by that
1044 amount. We'll start the bss section there, and lie to the OS.
1045 (Note that a linker script, as well as the above assignment,
1046 could have explicitly set the BSS vma to immediately follow
1047 the data section.) */
dda2980f
AM		 1048 if (align_power (bss->vma, bss->alignment_power) == data->vma + execp->a_data)
1049 execp->a_bss = data_pad > bss->size ? 0 : bss->size - data_pad;
252b5132 1050 else
dda2980f 1051 execp->a_bss = bss->size;
252b5132
RH		 1052}
1053
1054static void
116c20d2 1055adjust_n_magic (bfd *abfd, struct internal_exec *execp)
252b5132 1056{
923f08ff 1057 file_ptr pos = adata (abfd).exec_bytes_size;
252b5132
RH		 1058 bfd_vma vma = 0;
1059 int pad;
dda2980f
AM		 1060 asection *text = obj_textsec (abfd);
1061 asection *data = obj_datasec (abfd);
1062 asection *bss = obj_bsssec (abfd);
0ef5a5bd 1063
252b5132 1064 /* Text. */
dda2980f
AM		 1065 text->filepos = pos;
1066 if (!text->user_set_vma)
1067 text->vma = vma;
252b5132 1068 else
dda2980f
AM		 1069 vma = text->vma;
1070 pos += execp->a_text;
1071 vma += execp->a_text;
252b5132
RH		 1072
1073 /* Data. */
dda2980f
AM		 1074 data->filepos = pos;
1075 if (!data->user_set_vma)
1076 data->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
1077 vma = data->vma;
0ef5a5bd 1078
252b5132 1079 /* Since BSS follows data immediately, see if it needs alignment. */
dda2980f
AM		 1080 vma += data->size;
1081 pad = align_power (vma, bss->alignment_power) - vma;
1082 execp->a_data = data->size + pad;
1083 pos += execp->a_data;
252b5132
RH		 1084
1085 /* BSS. */
dda2980f
AM		 1086 if (!bss->user_set_vma)
1087 bss->vma = vma;
252b5132 1088 else
dda2980f 1089 vma = bss->vma;
252b5132
RH		 1090
1091 /* Fix up exec header. */
dda2980f 1092 execp->a_bss = bss->size;
bbb1afc8 1093 N_SET_MAGIC (execp, NMAGIC);
252b5132
RH		 1094}
1095
b34976b6 1096bfd_boolean
3a8c4a5b 1097NAME (aout, adjust_sizes_and_vmas) (bfd *abfd)
252b5132
RH		 1098{
1099 struct internal_exec *execp = exec_hdr (abfd);
1100
116c20d2 1101 if (! NAME (aout, make_sections) (abfd))
b34976b6 1102 return FALSE;
252b5132 1103
923f08ff 1104 if (adata (abfd).magic != undecided_magic)
b34976b6 1105 return TRUE;
252b5132 1106
dda2980f
AM		 1107 execp->a_text = align_power (obj_textsec (abfd)->size,
1108 obj_textsec (abfd)->alignment_power);
252b5132 1109
252b5132
RH		 1110 /* Rule (heuristic) for when to pad to a new page. Note that there
1111 are (at least) two ways demand-paged (ZMAGIC) files have been
1112 handled. Most Berkeley-based systems start the text segment at
1113 (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text
1114 segment right after the exec header; the latter is counted in the
1115 text segment size, and is paged in by the kernel with the rest of
0ef5a5bd 1116 the text. */
252b5132
RH		 1117
1118 /* This perhaps isn't the right way to do this, but made it simpler for me
1119 to understand enough to implement it. Better would probably be to go
1120 right from BFD flags to alignment/positioning characteristics. But the
1121 old code was sloppy enough about handling the flags, and had enough
1122 other magic, that it was a little hard for me to understand. I think
1123 I understand it better now, but I haven't time to do the cleanup this
1124 minute. */
1125
1126 if (abfd->flags & D_PAGED)
1127 /* Whether or not WP_TEXT is set -- let D_PAGED override. */
923f08ff 1128 adata (abfd).magic = z_magic;
252b5132 1129 else if (abfd->flags & WP_TEXT)
923f08ff 1130 adata (abfd).magic = n_magic;
252b5132 1131 else
923f08ff 1132 adata (abfd).magic = o_magic;
252b5132
RH		 1133
1134#ifdef BFD_AOUT_DEBUG /* requires gcc2 */
1135#if __GNUC__ >= 2
1136 fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n",
1137 ({ char *str;
923f08ff
AM		 1138 switch (adata (abfd).magic)
1139 {
1140 case n_magic: str = "NMAGIC"; break;
1141 case o_magic: str = "OMAGIC"; break;
1142 case z_magic: str = "ZMAGIC"; break;
1143 default: abort ();
1144 }
252b5132
RH		 1145 str;
1146 }),
eea6121a 1147 obj_textsec (abfd)->vma, obj_textsec (abfd)->size,
07d6d2b8 1148 obj_textsec (abfd)->alignment_power,
eea6121a 1149 obj_datasec (abfd)->vma, obj_datasec (abfd)->size,
07d6d2b8 1150 obj_datasec (abfd)->alignment_power,
eea6121a 1151 obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size,
07d6d2b8 1152 obj_bsssec (abfd)->alignment_power);
252b5132
RH		 1153#endif
1154#endif
1155
923f08ff 1156 switch (adata (abfd).magic)
252b5132
RH		 1157 {
1158 case o_magic:
1159 adjust_o_magic (abfd, execp);
1160 break;
1161 case z_magic:
1162 adjust_z_magic (abfd, execp);
1163 break;
1164 case n_magic:
1165 adjust_n_magic (abfd, execp);
1166 break;
1167 default:
1168 abort ();
1169 }
1170
1171#ifdef BFD_AOUT_DEBUG
1172 fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n",
dda2980f 1173 obj_textsec (abfd)->vma, execp->a_text,
07d6d2b8 1174 obj_textsec (abfd)->filepos,
dda2980f 1175 obj_datasec (abfd)->vma, execp->a_data,
07d6d2b8 1176 obj_datasec (abfd)->filepos,
dda2980f 1177 obj_bsssec (abfd)->vma, execp->a_bss);
252b5132
RH		 1178#endif
1179
b34976b6 1180 return TRUE;
252b5132
RH		 1181}
1182
1183/*
1184FUNCTION
1185 aout_@var{size}_new_section_hook
1186
1187SYNOPSIS
07d6d2b8 1188 bfd_boolean aout_@var{size}_new_section_hook,
252b5132 1189 (bfd *abfd,
116c20d2 1190 asection *newsect);
252b5132
RH		 1191
1192DESCRIPTION
1193 Called by the BFD in response to a @code{bfd_make_section}
1194 request.
1195*/
b34976b6 1196bfd_boolean
116c20d2 1197NAME (aout, new_section_hook) (bfd *abfd, asection *newsect)
252b5132 1198{
f7c33884 1199 /* Align to double at least. */
923f08ff 1200 newsect->alignment_power = bfd_get_arch_info (abfd)->section_align_power;
252b5132 1201
252b5132 1202 if (bfd_get_format (abfd) == bfd_object)
f7c33884
NC		 1203 {
1204 if (obj_textsec (abfd) == NULL && !strcmp (newsect->name, ".text"))
1205 {
1206 obj_textsec (abfd)= newsect;
1207 newsect->target_index = N_TEXT;
f7c33884 1208 }
f592407e 1209 else if (obj_datasec (abfd) == NULL && !strcmp (newsect->name, ".data"))
f7c33884
NC		 1210 {
1211 obj_datasec (abfd) = newsect;
1212 newsect->target_index = N_DATA;
f7c33884 1213 }
f592407e 1214 else if (obj_bsssec (abfd) == NULL && !strcmp (newsect->name, ".bss"))
f7c33884
NC		 1215 {
1216 obj_bsssec (abfd) = newsect;
1217 newsect->target_index = N_BSS;
f7c33884
NC		 1218 }
1219 }
252b5132 1220
f7c33884 1221 /* We allow more than three sections internally. */
f592407e 1222 return _bfd_generic_new_section_hook (abfd, newsect);
252b5132
RH		 1223}
1224
b34976b6 1225bfd_boolean
116c20d2
NC		 1226NAME (aout, set_section_contents) (bfd *abfd,
1227 sec_ptr section,
1228 const void * location,
1229 file_ptr offset,
1230 bfd_size_type count)
252b5132 1231{
252b5132
RH		 1232 if (! abfd->output_has_begun)
1233 {
3a8c4a5b 1234 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
b34976b6 1235 return FALSE;
252b5132
RH		 1236 }
1237
1238 if (section == obj_bsssec (abfd))
1239 {
1240 bfd_set_error (bfd_error_no_contents);
b34976b6 1241 return FALSE;
252b5132
RH		 1242 }
1243
1244 if (section != obj_textsec (abfd)
1245 && section != obj_datasec (abfd))
1246 {
e6af3a53
NC		 1247 if (aout_section_merge_with_text_p (abfd, section))
1248 section->filepos = obj_textsec (abfd)->filepos +
1249 (section->vma - obj_textsec (abfd)->vma);
1250 else
1251 {
4eca0228 1252 _bfd_error_handler
695344c0 1253 /* xgettext:c-format */
871b3ab2 1254 (_("%pB: can not represent section `%pA' in a.out object file format"),
dae82561 1255 abfd, section);
07d6d2b8
AM		 1256 bfd_set_error (bfd_error_nonrepresentable_section);
1257 return FALSE;
e6af3a53 1258 }
252b5132
RH		 1259 }
1260
1261 if (count != 0)
1262 {
1263 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
dc810e39 1264 || bfd_bwrite (location, count, abfd) != count)
b34976b6 1265 return FALSE;
252b5132
RH		 1266 }
1267
b34976b6 1268 return TRUE;
252b5132
RH		 1269}
1270\f
1271/* Read the external symbols from an a.out file. */
1272
b34976b6 1273static bfd_boolean
116c20d2 1274aout_get_external_symbols (bfd *abfd)
252b5132 1275{
116c20d2 1276 if (obj_aout_external_syms (abfd) == NULL)
252b5132
RH		 1277 {
1278 bfd_size_type count;
1279 struct external_nlist *syms;
7c53fd1c 1280 bfd_size_type amt = exec_hdr (abfd)->a_syms;
252b5132 1281
7c53fd1c 1282 count = amt / EXTERNAL_NLIST_SIZE;
6b8f0fd5
MS		 1283 if (count == 0)
1284 return TRUE; /* Nothing to do. */
252b5132
RH		 1285
1286#ifdef USE_MMAP
7c53fd1c 1287 if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd), amt,
b34976b6
AM		 1288 &obj_aout_sym_window (abfd), TRUE))
1289 return FALSE;
252b5132
RH		 1290 syms = (struct external_nlist *) obj_aout_sym_window (abfd).data;
1291#else
1292 /* We allocate using malloc to make the values easy to free
1293 later on. If we put them on the objalloc it might not be
1294 possible to free them. */
2bb3687b
AM		 1295 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0)
1296 return FALSE;
1297 syms = (struct external_nlist *) _bfd_malloc_and_read (abfd, amt, amt);
6b8f0fd5 1298 if (syms == NULL)
b34976b6 1299 return FALSE;
252b5132
RH		 1300#endif
1301
1302 obj_aout_external_syms (abfd) = syms;
1303 obj_aout_external_sym_count (abfd) = count;
1304 }
0ef5a5bd 1305
252b5132
RH		 1306 if (obj_aout_external_strings (abfd) == NULL
1307 && exec_hdr (abfd)->a_syms != 0)
1308 {
1309 unsigned char string_chars[BYTES_IN_WORD];
1310 bfd_size_type stringsize;
1311 char *strings;
dc810e39 1312 bfd_size_type amt = BYTES_IN_WORD;
252b5132
RH		 1313
1314 /* Get the size of the strings. */
1315 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
116c20d2 1316 || bfd_bread ((void *) string_chars, amt, abfd) != amt)
b34976b6 1317 return FALSE;
252b5132 1318 stringsize = GET_WORD (abfd, string_chars);
0301ce14
AM		 1319 if (stringsize == 0)
1320 stringsize = 1;
1321 else if (stringsize < BYTES_IN_WORD
1322 || (size_t) stringsize != stringsize)
1323 {
1324 bfd_set_error (bfd_error_bad_value);
1325 return FALSE;
1326 }
252b5132
RH		 1327
1328#ifdef USE_MMAP
0301ce14 1329 if (stringsize >= BYTES_IN_WORD)
252b5132 1330 {
bf82069d 1331 if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize + 1,
0301ce14
AM		 1332 &obj_aout_string_window (abfd), TRUE))
1333 return FALSE;
1334 strings = (char *) obj_aout_string_window (abfd).data;
252b5132 1335 }
0301ce14 1336 else
252b5132 1337#endif
0301ce14 1338 {
bf82069d 1339 strings = (char *) bfd_malloc (stringsize + 1);
0301ce14
AM		 1340 if (strings == NULL)
1341 return FALSE;
1342
1343 if (stringsize >= BYTES_IN_WORD)
1344 {
1345 /* Keep the string count in the buffer for convenience
1346 when indexing with e_strx. */
1347 amt = stringsize - BYTES_IN_WORD;
1348 if (bfd_bread (strings + BYTES_IN_WORD, amt, abfd) != amt)
1349 {
1350 free (strings);
1351 return FALSE;
1352 }
1353 }
1354 }
252b5132
RH		 1355 /* Ensure that a zero index yields an empty string. */
1356 strings[0] = '\0';
1357
bf82069d
NC		 1358 /* Ensure that the string buffer is NUL terminated. */
1359 strings[stringsize] = 0;
252b5132
RH		 1360
1361 obj_aout_external_strings (abfd) = strings;
1362 obj_aout_external_string_size (abfd) = stringsize;
1363 }
1364
b34976b6 1365 return TRUE;
252b5132
RH		 1366}
1367
1368/* Translate an a.out symbol into a BFD symbol. The desc, other, type
1369 and symbol->value fields of CACHE_PTR will be set from the a.out
1370 nlist structure. This function is responsible for setting
1371 symbol->flags and symbol->section, and adjusting symbol->value. */
1372
b34976b6 1373static bfd_boolean
116c20d2 1374translate_from_native_sym_flags (bfd *abfd, aout_symbol_type *cache_ptr)
252b5132
RH		 1375{
1376 flagword visible;
1377
1378 if ((cache_ptr->type & N_STAB) != 0
1379 || cache_ptr->type == N_FN)
1380 {
1381 asection *sec;
1382
1383 /* This is a debugging symbol. */
252b5132
RH		 1384 cache_ptr->symbol.flags = BSF_DEBUGGING;
1385
1386 /* Work out the symbol section. */
1387 switch (cache_ptr->type & N_TYPE)
1388 {
1389 case N_TEXT:
1390 case N_FN:
1391 sec = obj_textsec (abfd);
1392 break;
1393 case N_DATA:
1394 sec = obj_datasec (abfd);
1395 break;
1396 case N_BSS:
1397 sec = obj_bsssec (abfd);
1398 break;
1399 default:
1400 case N_ABS:
1401 sec = bfd_abs_section_ptr;
1402 break;
1403 }
1404
1405 cache_ptr->symbol.section = sec;
1406 cache_ptr->symbol.value -= sec->vma;
1407
b34976b6 1408 return TRUE;
252b5132
RH		 1409 }
1410
1411 /* Get the default visibility. This does not apply to all types, so
1412 we just hold it in a local variable to use if wanted. */
1413 if ((cache_ptr->type & N_EXT) == 0)
1414 visible = BSF_LOCAL;
1415 else
1416 visible = BSF_GLOBAL;
1417
1418 switch (cache_ptr->type)
1419 {
1420 default:
1421 case N_ABS: case N_ABS | N_EXT:
1422 cache_ptr->symbol.section = bfd_abs_section_ptr;
1423 cache_ptr->symbol.flags = visible;
1424 break;
1425
1426 case N_UNDF | N_EXT:
1427 if (cache_ptr->symbol.value != 0)
1428 {
1429 /* This is a common symbol. */
1430 cache_ptr->symbol.flags = BSF_GLOBAL;
1431 cache_ptr->symbol.section = bfd_com_section_ptr;
1432 }
1433 else
1434 {
1435 cache_ptr->symbol.flags = 0;
1436 cache_ptr->symbol.section = bfd_und_section_ptr;
1437 }
1438 break;
1439
1440 case N_TEXT: case N_TEXT | N_EXT:
1441 cache_ptr->symbol.section = obj_textsec (abfd);
1442 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1443 cache_ptr->symbol.flags = visible;
1444 break;
1445
1446 /* N_SETV symbols used to represent set vectors placed in the
1447 data section. They are no longer generated. Theoretically,
1448 it was possible to extract the entries and combine them with
1449 new ones, although I don't know if that was ever actually
1450 done. Unless that feature is restored, treat them as data
1451 symbols. */
1452 case N_SETV: case N_SETV | N_EXT:
1453 case N_DATA: case N_DATA | N_EXT:
1454 cache_ptr->symbol.section = obj_datasec (abfd);
1455 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1456 cache_ptr->symbol.flags = visible;
1457 break;
1458
1459 case N_BSS: case N_BSS | N_EXT:
1460 cache_ptr->symbol.section = obj_bsssec (abfd);
1461 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1462 cache_ptr->symbol.flags = visible;
1463 break;
1464
1465 case N_SETA: case N_SETA | N_EXT:
1466 case N_SETT: case N_SETT | N_EXT:
1467 case N_SETD: case N_SETD | N_EXT:
1468 case N_SETB: case N_SETB | N_EXT:
1469 {
1470 /* This code is no longer needed. It used to be used to make
07d6d2b8
AM		 1471 the linker handle set symbols, but they are now handled in
1472 the add_symbols routine instead. */
252b5132
RH		 1473 switch (cache_ptr->type & N_TYPE)
1474 {
1475 case N_SETA:
1476 cache_ptr->symbol.section = bfd_abs_section_ptr;
1477 break;
1478 case N_SETT:
1479 cache_ptr->symbol.section = obj_textsec (abfd);
1480 break;
1481 case N_SETD:
1482 cache_ptr->symbol.section = obj_datasec (abfd);
1483 break;
1484 case N_SETB:
1485 cache_ptr->symbol.section = obj_bsssec (abfd);
1486 break;
1487 }
1488
1489 cache_ptr->symbol.flags |= BSF_CONSTRUCTOR;
1490 }
1491 break;
1492
1493 case N_WARNING:
1494 /* This symbol is the text of a warning message. The next
1495 symbol is the symbol to associate the warning with. If a
1496 reference is made to that symbol, a warning is issued. */
1497 cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_WARNING;
1498 cache_ptr->symbol.section = bfd_abs_section_ptr;
1499 break;
1500
1501 case N_INDR: case N_INDR | N_EXT:
1502 /* An indirect symbol. This consists of two symbols in a row.
1503 The first symbol is the name of the indirection. The second
1504 symbol is the name of the target. A reference to the first
1505 symbol becomes a reference to the second. */
1506 cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_INDIRECT | visible;
1507 cache_ptr->symbol.section = bfd_ind_section_ptr;
1508 break;
1509
1510 case N_WEAKU:
1511 cache_ptr->symbol.section = bfd_und_section_ptr;
1512 cache_ptr->symbol.flags = BSF_WEAK;
1513 break;
1514
1515 case N_WEAKA:
1516 cache_ptr->symbol.section = bfd_abs_section_ptr;
1517 cache_ptr->symbol.flags = BSF_WEAK;
1518 break;
1519
1520 case N_WEAKT:
1521 cache_ptr->symbol.section = obj_textsec (abfd);
1522 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1523 cache_ptr->symbol.flags = BSF_WEAK;
1524 break;
1525
1526 case N_WEAKD:
1527 cache_ptr->symbol.section = obj_datasec (abfd);
1528 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1529 cache_ptr->symbol.flags = BSF_WEAK;
1530 break;
1531
1532 case N_WEAKB:
1533 cache_ptr->symbol.section = obj_bsssec (abfd);
1534 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1535 cache_ptr->symbol.flags = BSF_WEAK;
1536 break;
1537 }
1538
b34976b6 1539 return TRUE;
252b5132
RH		 1540}
1541
1542/* Set the fields of SYM_POINTER according to CACHE_PTR. */
1543
b34976b6 1544static bfd_boolean
116c20d2
NC		 1545translate_to_native_sym_flags (bfd *abfd,
1546 asymbol *cache_ptr,
1547 struct external_nlist *sym_pointer)
252b5132
RH		 1548{
1549 bfd_vma value = cache_ptr->value;
1550 asection *sec;
1551 bfd_vma off;
1552
1553 /* Mask out any existing type bits in case copying from one section
1554 to another. */
1555 sym_pointer->e_type[0] &= ~N_TYPE;
1556
e6f7f6d1 1557 sec = bfd_asymbol_section (cache_ptr);
252b5132
RH		 1558 off = 0;
1559
1560 if (sec == NULL)
1561 {
1562 /* This case occurs, e.g., for the *DEBUG* section of a COFF
1563 file. */
4eca0228 1564 _bfd_error_handler
695344c0 1565 /* xgettext:c-format */
871b3ab2 1566 (_("%pB: can not represent section for symbol `%s' in a.out "
4eca0228 1567 "object file format"),
dae82561 1568 abfd,
252b5132
RH		 1569 cache_ptr->name != NULL ? cache_ptr->name : _("*unknown*"));
1570 bfd_set_error (bfd_error_nonrepresentable_section);
b34976b6 1571 return FALSE;
252b5132
RH		 1572 }
1573
1574 if (sec->output_section != NULL)
1575 {
1576 off = sec->output_offset;
1577 sec = sec->output_section;
1578 }
1579
1580 if (bfd_is_abs_section (sec))
1581 sym_pointer->e_type[0] |= N_ABS;
1582 else if (sec == obj_textsec (abfd))
1583 sym_pointer->e_type[0] |= N_TEXT;
1584 else if (sec == obj_datasec (abfd))
1585 sym_pointer->e_type[0] |= N_DATA;
1586 else if (sec == obj_bsssec (abfd))
1587 sym_pointer->e_type[0] |= N_BSS;
1588 else if (bfd_is_und_section (sec))
1589 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1590 else if (bfd_is_ind_section (sec))
1591 sym_pointer->e_type[0] = N_INDR;
1592 else if (bfd_is_com_section (sec))
1593 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1594 else
1595 {
e6af3a53
NC		 1596 if (aout_section_merge_with_text_p (abfd, sec))
1597 sym_pointer->e_type[0] |= N_TEXT;
1598 else
1599 {
4eca0228 1600 _bfd_error_handler
695344c0 1601 /* xgettext:c-format */
871b3ab2 1602 (_("%pB: can not represent section `%pA' in a.out object file format"),
dae82561 1603 abfd, sec);
07d6d2b8
AM		 1604 bfd_set_error (bfd_error_nonrepresentable_section);
1605 return FALSE;
e6af3a53 1606 }
252b5132
RH		 1607 }
1608
f7c33884 1609 /* Turn the symbol from section relative to absolute again. */
252b5132
RH		 1610 value += sec->vma + off;
1611
1612 if ((cache_ptr->flags & BSF_WARNING) != 0)
1613 sym_pointer->e_type[0] = N_WARNING;
1614
1615 if ((cache_ptr->flags & BSF_DEBUGGING) != 0)
1616 sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type;
1617 else if ((cache_ptr->flags & BSF_GLOBAL) != 0)
1618 sym_pointer->e_type[0] |= N_EXT;
930d924d
L		 1619 else if ((cache_ptr->flags & BSF_LOCAL) != 0)
1620 sym_pointer->e_type[0] &= ~N_EXT;
252b5132
RH		 1621
1622 if ((cache_ptr->flags & BSF_CONSTRUCTOR) != 0)
1623 {
1624 int type = ((aout_symbol_type *) cache_ptr)->type;
f7c33884 1625
252b5132
RH		 1626 switch (type)
1627 {
1628 case N_ABS: type = N_SETA; break;
1629 case N_TEXT: type = N_SETT; break;
1630 case N_DATA: type = N_SETD; break;
1631 case N_BSS: type = N_SETB; break;
1632 }
1633 sym_pointer->e_type[0] = type;
1634 }
1635
1636 if ((cache_ptr->flags & BSF_WEAK) != 0)
1637 {
1638 int type;
1639
1640 switch (sym_pointer->e_type[0] & N_TYPE)
1641 {
1642 default:
1643 case N_ABS: type = N_WEAKA; break;
1644 case N_TEXT: type = N_WEAKT; break;
1645 case N_DATA: type = N_WEAKD; break;
1646 case N_BSS: type = N_WEAKB; break;
1647 case N_UNDF: type = N_WEAKU; break;
1648 }
1649 sym_pointer->e_type[0] = type;
1650 }
1651
923f08ff 1652 PUT_WORD (abfd, value, sym_pointer->e_value);
252b5132 1653
b34976b6 1654 return TRUE;
252b5132
RH		 1655}
1656\f
0ef5a5bd 1657/* Native-level interface to symbols. */
252b5132
RH		 1658
1659asymbol *
116c20d2 1660NAME (aout, make_empty_symbol) (bfd *abfd)
252b5132 1661{
986f0783 1662 size_t amt = sizeof (aout_symbol_type);
116c20d2 1663
d3ce72d0
NC		 1664 aout_symbol_type *new_symbol = (aout_symbol_type *) bfd_zalloc (abfd, amt);
1665 if (!new_symbol)
252b5132 1666 return NULL;
d3ce72d0 1667 new_symbol->symbol.the_bfd = abfd;
252b5132 1668
d3ce72d0 1669 return &new_symbol->symbol;
252b5132
RH		 1670}
1671
1672/* Translate a set of internal symbols into external symbols. */
1673
b34976b6 1674bfd_boolean
116c20d2
NC		 1675NAME (aout, translate_symbol_table) (bfd *abfd,
1676 aout_symbol_type *in,
1677 struct external_nlist *ext,
1678 bfd_size_type count,
1679 char *str,
1680 bfd_size_type strsize,
1681 bfd_boolean dynamic)
252b5132
RH		 1682{
1683 struct external_nlist *ext_end;
1684
1685 ext_end = ext + count;
1686 for (; ext < ext_end; ext++, in++)
1687 {
1688 bfd_vma x;
1689
1690 x = GET_WORD (abfd, ext->e_strx);
1691 in->symbol.the_bfd = abfd;
1692
1693 /* For the normal symbols, the zero index points at the number
1694 of bytes in the string table but is to be interpreted as the
1695 null string. For the dynamic symbols, the number of bytes in
1696 the string table is stored in the __DYNAMIC structure and the
1697 zero index points at an actual string. */
1698 if (x == 0 && ! dynamic)
1699 in->symbol.name = "";
1700 else if (x < strsize)
1701 in->symbol.name = str + x;
1702 else
0d329c0a
AM		 1703 {
1704 _bfd_error_handler
1705 (_("%pB: invalid string offset %" PRIu64 " >= %" PRIu64),
1706 abfd, (uint64_t) x, (uint64_t) strsize);
1707 bfd_set_error (bfd_error_bad_value);
1708 return FALSE;
1709 }
252b5132
RH		 1710
1711 in->symbol.value = GET_SWORD (abfd, ext->e_value);
dc810e39
AM		 1712 in->desc = H_GET_16 (abfd, ext->e_desc);
1713 in->other = H_GET_8 (abfd, ext->e_other);
1714 in->type = H_GET_8 (abfd, ext->e_type);
252b5132
RH		 1715 in->symbol.udata.p = NULL;
1716
1717 if (! translate_from_native_sym_flags (abfd, in))
b34976b6 1718 return FALSE;
252b5132
RH		 1719
1720 if (dynamic)
1721 in->symbol.flags |= BSF_DYNAMIC;
1722 }
1723
b34976b6 1724 return TRUE;
252b5132
RH		 1725}
1726
1727/* We read the symbols into a buffer, which is discarded when this
1728 function exits. We read the strings into a buffer large enough to
0ef5a5bd 1729 hold them all plus all the cached symbol entries. */
252b5132 1730
b34976b6 1731bfd_boolean
116c20d2 1732NAME (aout, slurp_symbol_table) (bfd *abfd)
252b5132
RH		 1733{
1734 struct external_nlist *old_external_syms;
1735 aout_symbol_type *cached;
dc810e39 1736 bfd_size_type cached_size;
252b5132 1737
f7c33884 1738 /* If there's no work to be done, don't do any. */
116c20d2 1739 if (obj_aout_symbols (abfd) != NULL)
b34976b6 1740 return TRUE;
252b5132
RH		 1741
1742 old_external_syms = obj_aout_external_syms (abfd);
1743
1744 if (! aout_get_external_symbols (abfd))
b34976b6 1745 return FALSE;
252b5132 1746
dc810e39 1747 cached_size = obj_aout_external_sym_count (abfd);
87b32780
MS		 1748 if (cached_size == 0)
1749 return TRUE; /* Nothing to do. */
1750
dc810e39 1751 cached_size *= sizeof (aout_symbol_type);
a50b1753 1752 cached = (aout_symbol_type *) bfd_zmalloc (cached_size);
87b32780 1753 if (cached == NULL)
b34976b6 1754 return FALSE;
252b5132
RH		 1755
1756 /* Convert from external symbol information to internal. */
116c20d2 1757 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 1758 (abfd, cached,
1759 obj_aout_external_syms (abfd),
1760 obj_aout_external_sym_count (abfd),
1761 obj_aout_external_strings (abfd),
1762 obj_aout_external_string_size (abfd),
b34976b6 1763 FALSE)))
252b5132
RH		 1764 {
1765 free (cached);
b34976b6 1766 return FALSE;
252b5132
RH		 1767 }
1768
ed48ec2e 1769 abfd->symcount = obj_aout_external_sym_count (abfd);
252b5132
RH		 1770
1771 obj_aout_symbols (abfd) = cached;
1772
1773 /* It is very likely that anybody who calls this function will not
1774 want the external symbol information, so if it was allocated
1775 because of our call to aout_get_external_symbols, we free it up
1776 right away to save space. */
116c20d2
NC		 1777 if (old_external_syms == NULL
1778 && obj_aout_external_syms (abfd) != NULL)
252b5132
RH		 1779 {
1780#ifdef USE_MMAP
1781 bfd_free_window (&obj_aout_sym_window (abfd));
1782#else
1783 free (obj_aout_external_syms (abfd));
1784#endif
1785 obj_aout_external_syms (abfd) = NULL;
1786 }
1787
b34976b6 1788 return TRUE;
252b5132
RH		 1789}
1790\f
1791/* We use a hash table when writing out symbols so that we only write
1792 out a particular string once. This helps particularly when the
1793 linker writes out stabs debugging entries, because each different
1794 contributing object file tends to have many duplicate stabs
1795 strings.
1796
1797 This hash table code breaks dbx on SunOS 4.1.3, so we don't do it
1798 if BFD_TRADITIONAL_FORMAT is set. */
1799
252b5132
RH		 1800/* Get the index of a string in a strtab, adding it if it is not
1801 already present. */
1802
116c20d2
NC		 1803static inline bfd_size_type
1804add_to_stringtab (bfd *abfd,
1805 struct bfd_strtab_hash *tab,
1806 const char *str,
1807 bfd_boolean copy)
252b5132 1808{
b34976b6 1809 bfd_boolean hash;
91d6fa6a 1810 bfd_size_type str_index;
252b5132
RH		 1811
1812 /* An index of 0 always means the empty string. */
1813 if (str == 0 || *str == '\0')
1814 return 0;
1815
1816 /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx
1817 doesn't understand a hashed string table. */
b34976b6 1818 hash = TRUE;
252b5132 1819 if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
b34976b6 1820 hash = FALSE;
252b5132 1821
91d6fa6a 1822 str_index = _bfd_stringtab_add (tab, str, hash, copy);
252b5132 1823
91d6fa6a 1824 if (str_index != (bfd_size_type) -1)
116c20d2
NC		 1825 /* Add BYTES_IN_WORD to the return value to account for the
1826 space taken up by the string table size. */
91d6fa6a 1827 str_index += BYTES_IN_WORD;
252b5132 1828
91d6fa6a 1829 return str_index;
252b5132
RH		 1830}
1831
1832/* Write out a strtab. ABFD is already at the right location in the
1833 file. */
1834
b34976b6 1835static bfd_boolean
116c20d2 1836emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab)
252b5132
RH		 1837{
1838 bfd_byte buffer[BYTES_IN_WORD];
986f0783 1839 size_t amt = BYTES_IN_WORD;
252b5132
RH		 1840
1841 /* The string table starts with the size. */
1842 PUT_WORD (abfd, _bfd_stringtab_size (tab) + BYTES_IN_WORD, buffer);
116c20d2 1843 if (bfd_bwrite ((void *) buffer, amt, abfd) != amt)
b34976b6 1844 return FALSE;
252b5132
RH		 1845
1846 return _bfd_stringtab_emit (abfd, tab);
1847}
1848\f
b34976b6 1849bfd_boolean
116c20d2 1850NAME (aout, write_syms) (bfd *abfd)
252b5132
RH		 1851{
1852 unsigned int count ;
1853 asymbol **generic = bfd_get_outsymbols (abfd);
1854 struct bfd_strtab_hash *strtab;
1855
1856 strtab = _bfd_stringtab_init ();
1857 if (strtab == NULL)
b34976b6 1858 return FALSE;
252b5132
RH		 1859
1860 for (count = 0; count < bfd_get_symcount (abfd); count++)
1861 {
1862 asymbol *g = generic[count];
1863 bfd_size_type indx;
1864 struct external_nlist nsp;
986f0783 1865 size_t amt;
252b5132 1866
b34976b6 1867 indx = add_to_stringtab (abfd, strtab, g->name, FALSE);
252b5132
RH		 1868 if (indx == (bfd_size_type) -1)
1869 goto error_return;
1870 PUT_WORD (abfd, indx, (bfd_byte *) nsp.e_strx);
1871
923f08ff 1872 if (bfd_asymbol_flavour (g) == abfd->xvec->flavour)
252b5132 1873 {
923f08ff
AM		 1874 H_PUT_16 (abfd, aout_symbol (g)->desc, nsp.e_desc);
1875 H_PUT_8 (abfd, aout_symbol (g)->other, nsp.e_other);
1876 H_PUT_8 (abfd, aout_symbol (g)->type, nsp.e_type);
252b5132
RH		 1877 }
1878 else
1879 {
dc810e39
AM		 1880 H_PUT_16 (abfd, 0, nsp.e_desc);
1881 H_PUT_8 (abfd, 0, nsp.e_other);
1882 H_PUT_8 (abfd, 0, nsp.e_type);
252b5132
RH		 1883 }
1884
1885 if (! translate_to_native_sym_flags (abfd, g, &nsp))
1886 goto error_return;
1887
dc810e39 1888 amt = EXTERNAL_NLIST_SIZE;
116c20d2 1889 if (bfd_bwrite ((void *) &nsp, amt, abfd) != amt)
252b5132
RH		 1890 goto error_return;
1891
1892 /* NB: `KEEPIT' currently overlays `udata.p', so set this only
1893 here, at the end. */
1894 g->KEEPIT = count;
1895 }
1896
1897 if (! emit_stringtab (abfd, strtab))
1898 goto error_return;
1899
1900 _bfd_stringtab_free (strtab);
1901
b34976b6 1902 return TRUE;
252b5132 1903
dc1e8a47 1904 error_return:
252b5132 1905 _bfd_stringtab_free (strtab);
b34976b6 1906 return FALSE;
252b5132 1907}
252b5132
RH		 1908\f
1909long
116c20d2 1910NAME (aout, canonicalize_symtab) (bfd *abfd, asymbol **location)
252b5132 1911{
116c20d2
NC		 1912 unsigned int counter = 0;
1913 aout_symbol_type *symbase;
252b5132 1914
116c20d2
NC		 1915 if (!NAME (aout, slurp_symbol_table) (abfd))
1916 return -1;
252b5132 1917
116c20d2
NC		 1918 for (symbase = obj_aout_symbols (abfd);
1919 counter++ < bfd_get_symcount (abfd);
1920 )
1921 *(location++) = (asymbol *) (symbase++);
1922 *location++ =0;
1923 return bfd_get_symcount (abfd);
252b5132 1924}
252b5132 1925\f
f7c33884 1926/* Standard reloc stuff. */
0ef5a5bd 1927/* Output standard relocation information to a file in target byte order. */
252b5132 1928
116c20d2
NC		 1929extern void NAME (aout, swap_std_reloc_out)
1930 (bfd *, arelent *, struct reloc_std_external *);
252b5132
RH		 1931
1932void
116c20d2
NC		 1933NAME (aout, swap_std_reloc_out) (bfd *abfd,
1934 arelent *g,
1935 struct reloc_std_external *natptr)
252b5132
RH		 1936{
1937 int r_index;
1938 asymbol *sym = *(g->sym_ptr_ptr);
1939 int r_extern;
1940 unsigned int r_length;
1941 int r_pcrel;
1942 int r_baserel, r_jmptable, r_relative;
1943 asection *output_section = sym->section->output_section;
1944
923f08ff 1945 PUT_WORD (abfd, g->address, natptr->r_address);
252b5132 1946
e2996cc3 1947 BFD_ASSERT (g->howto != NULL);
dfa85db1 1948
533f049e
GN		 1949 switch (bfd_get_reloc_size (g->howto))
1950 {
1951 default:
1952 _bfd_error_handler (_("%pB: unsupported AOUT relocation size: %d"),
1953 abfd, bfd_get_reloc_size (g->howto));
1954 bfd_set_error (bfd_error_bad_value);
1955 return;
1956 case 1:
1957 case 2:
1958 case 4:
1959 r_length = g->howto->size; /* Size as a power of two. */
1960 break;
1961 case 8:
1962 r_length = 3;
1963 break;
1964 }
dfa85db1 1965
f7c33884 1966 r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */
252b5132
RH		 1967 /* XXX This relies on relocs coming from a.out files. */
1968 r_baserel = (g->howto->type & 8) != 0;
1969 r_jmptable = (g->howto->type & 16) != 0;
1970 r_relative = (g->howto->type & 32) != 0;
1971
f7c33884 1972 /* Name was clobbered by aout_write_syms to be symbol index. */
252b5132
RH		 1973
1974 /* If this relocation is relative to a symbol then set the
1975 r_index to the symbols index, and the r_extern bit.
1976
1977 Absolute symbols can come in in two ways, either as an offset
1978 from the abs section, or as a symbol which has an abs value.
f7c33884 1979 check for that here. */
252b5132 1980
252b5132
RH		 1981 if (bfd_is_com_section (output_section)
1982 || bfd_is_abs_section (output_section)
22184a77
NC		 1983 || bfd_is_und_section (output_section)
1984 /* PR gas/3041 a.out relocs against weak symbols
1985 must be treated as if they were against externs. */
1986 || (sym->flags & BSF_WEAK))
252b5132
RH		 1987 {
1988 if (bfd_abs_section_ptr->symbol == sym)
f7c33884
NC		 1989 {
1990 /* Whoops, looked like an abs symbol, but is
1991 really an offset from the abs section. */
1992 r_index = N_ABS;
1993 r_extern = 0;
1994 }
252b5132 1995 else
f7c33884
NC		 1996 {
1997 /* Fill in symbol. */
1998 r_extern = 1;
1999 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
2000 }
252b5132
RH		 2001 }
2002 else
2003 {
f7c33884 2004 /* Just an ordinary section. */
252b5132
RH		 2005 r_extern = 0;
2006 r_index = output_section->target_index;
2007 }
2008
f7c33884 2009 /* Now the fun stuff. */
923f08ff
AM		 2010 if (bfd_header_big_endian (abfd))
2011 {
252b5132
RH		 2012 natptr->r_index[0] = r_index >> 16;
2013 natptr->r_index[1] = r_index >> 8;
2014 natptr->r_index[2] = r_index;
923f08ff
AM		 2015 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
2016 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
2017 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
2018 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
2019 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
2020 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
2021 }
2022 else
2023 {
2024 natptr->r_index[2] = r_index >> 16;
2025 natptr->r_index[1] = r_index >> 8;
2026 natptr->r_index[0] = r_index;
2027 natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
2028 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
2029 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
2030 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
2031 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
2032 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
2033 }
252b5132
RH		 2034}
2035
f7c33884 2036/* Extended stuff. */
0ef5a5bd 2037/* Output extended relocation information to a file in target byte order. */
252b5132 2038
116c20d2
NC		 2039extern void NAME (aout, swap_ext_reloc_out)
2040 (bfd *, arelent *, struct reloc_ext_external *);
252b5132
RH		 2041
2042void
116c20d2
NC		 2043NAME (aout, swap_ext_reloc_out) (bfd *abfd,
2044 arelent *g,
2045 struct reloc_ext_external *natptr)
252b5132
RH		 2046{
2047 int r_index;
2048 int r_extern;
2049 unsigned int r_type;
dc810e39 2050 bfd_vma r_addend;
252b5132
RH		 2051 asymbol *sym = *(g->sym_ptr_ptr);
2052 asection *output_section = sym->section->output_section;
2053
2054 PUT_WORD (abfd, g->address, natptr->r_address);
2055
2056 r_type = (unsigned int) g->howto->type;
2057
2058 r_addend = g->addend;
2059 if ((sym->flags & BSF_SECTION_SYM) != 0)
2060 r_addend += (*(g->sym_ptr_ptr))->section->output_section->vma;
2061
2062 /* If this relocation is relative to a symbol then set the
2063 r_index to the symbols index, and the r_extern bit.
2064
2065 Absolute symbols can come in in two ways, either as an offset
2066 from the abs section, or as a symbol which has an abs value.
2067 check for that here. */
e6f7f6d1 2068 if (bfd_is_abs_section (bfd_asymbol_section (sym)))
252b5132
RH		 2069 {
2070 r_extern = 0;
2071 r_index = N_ABS;
2072 }
2073 else if ((sym->flags & BSF_SECTION_SYM) == 0)
2074 {
e6f7f6d1 2075 if (bfd_is_und_section (bfd_asymbol_section (sym))
252b5132
RH		 2076 || (sym->flags & BSF_GLOBAL) != 0)
2077 r_extern = 1;
2078 else
2079 r_extern = 0;
2080 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
2081 }
2082 else
2083 {
f7c33884 2084 /* Just an ordinary section. */
252b5132
RH		 2085 r_extern = 0;
2086 r_index = output_section->target_index;
2087 }
2088
f7c33884 2089 /* Now the fun stuff. */
923f08ff
AM		 2090 if (bfd_header_big_endian (abfd))
2091 {
2092 natptr->r_index[0] = r_index >> 16;
2093 natptr->r_index[1] = r_index >> 8;
2094 natptr->r_index[2] = r_index;
2095 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
2096 | (r_type << RELOC_EXT_BITS_TYPE_SH_BIG));
2097 }
2098 else
2099 {
2100 natptr->r_index[2] = r_index >> 16;
2101 natptr->r_index[1] = r_index >> 8;
2102 natptr->r_index[0] = r_index;
2103 natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
2104 | (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE));
2105 }
252b5132
RH		 2106
2107 PUT_WORD (abfd, r_addend, natptr->r_addend);
2108}
2109
2110/* BFD deals internally with all things based from the section they're
2111 in. so, something in 10 bytes into a text section with a base of
2112 50 would have a symbol (.text+10) and know .text vma was 50.
2113
2114 Aout keeps all it's symbols based from zero, so the symbol would
2115 contain 60. This macro subs the base of each section from the value
923f08ff
AM		 2116 to give the true offset from the section. */
2117
2118#define MOVE_ADDRESS(ad) \
2119 if (r_extern) \
2120 { \
2121 /* Undefined symbol. */ \
2122 cache_ptr->sym_ptr_ptr = symbols + r_index; \
252b5132 2123 cache_ptr->addend = ad; \
252b5132 2124 } \
923f08ff
AM		 2125 else \
2126 { \
2127 /* Defined, section relative. Replace symbol with pointer to \
2128 symbol which points to section. */ \
2129 switch (r_index) \
2130 { \
2131 case N_TEXT: \
2132 case N_TEXT | N_EXT: \
2133 cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \
2134 cache_ptr->addend = ad - su->textsec->vma; \
2135 break; \
2136 case N_DATA: \
2137 case N_DATA | N_EXT: \
2138 cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \
2139 cache_ptr->addend = ad - su->datasec->vma; \
2140 break; \
2141 case N_BSS: \
2142 case N_BSS | N_EXT: \
2143 cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \
2144 cache_ptr->addend = ad - su->bsssec->vma; \
2145 break; \
2146 default: \
2147 case N_ABS: \
2148 case N_ABS | N_EXT: \
2149 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
2150 cache_ptr->addend = ad; \
2151 break; \
2152 } \
2153 }
252b5132
RH		 2154
2155void
116c20d2
NC		 2156NAME (aout, swap_ext_reloc_in) (bfd *abfd,
2157 struct reloc_ext_external *bytes,
2158 arelent *cache_ptr,
2159 asymbol **symbols,
2160 bfd_size_type symcount)
252b5132
RH		 2161{
2162 unsigned int r_index;
2163 int r_extern;
2164 unsigned int r_type;
2165 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2166
2167 cache_ptr->address = (GET_SWORD (abfd, bytes->r_address));
2168
f7c33884 2169 /* Now the fun stuff. */
923f08ff
AM		 2170 if (bfd_header_big_endian (abfd))
2171 {
d45913a0
DA		 2172 r_index = (((unsigned int) bytes->r_index[0] << 16)
2173 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2174 | bytes->r_index[2]);
2175 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
2176 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
2177 >> RELOC_EXT_BITS_TYPE_SH_BIG);
2178 }
2179 else
2180 {
d45913a0
DA		 2181 r_index = (((unsigned int) bytes->r_index[2] << 16)
2182 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2183 | bytes->r_index[0]);
2184 r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
2185 r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
2186 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
2187 }
252b5132 2188
ad756e3f
AM		 2189 if (r_type < TABLE_SIZE (howto_table_ext))
2190 cache_ptr->howto = howto_table_ext + r_type;
2191 else
2192 cache_ptr->howto = NULL;
252b5132
RH		 2193
2194 /* Base relative relocs are always against the symbol table,
2195 regardless of the setting of r_extern. r_extern just reflects
2196 whether the symbol the reloc is against is local or global. */
d45913a0
DA		 2197 if (r_type == (unsigned int) RELOC_BASE10
2198 || r_type == (unsigned int) RELOC_BASE13
2199 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 2200 r_extern = 1;
2201
2202 if (r_extern && r_index > symcount)
2203 {
2204 /* We could arrange to return an error, but it might be useful
07d6d2b8 2205 to see the file even if it is bad. */
252b5132
RH		 2206 r_extern = 0;
2207 r_index = N_ABS;
2208 }
2209
923f08ff 2210 MOVE_ADDRESS (GET_SWORD (abfd, bytes->r_addend));
252b5132
RH		 2211}
2212
2213void
116c20d2
NC		 2214NAME (aout, swap_std_reloc_in) (bfd *abfd,
2215 struct reloc_std_external *bytes,
2216 arelent *cache_ptr,
2217 asymbol **symbols,
2218 bfd_size_type symcount)
252b5132
RH		 2219{
2220 unsigned int r_index;
2221 int r_extern;
2222 unsigned int r_length;
2223 int r_pcrel;
2224 int r_baserel, r_jmptable, r_relative;
2225 struct aoutdata *su = &(abfd->tdata.aout_data->a);
2226 unsigned int howto_idx;
2227
dc810e39 2228 cache_ptr->address = H_GET_32 (abfd, bytes->r_address);
252b5132 2229
f7c33884 2230 /* Now the fun stuff. */
923f08ff
AM		 2231 if (bfd_header_big_endian (abfd))
2232 {
d45913a0
DA		 2233 r_index = (((unsigned int) bytes->r_index[0] << 16)
2234 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2235 | bytes->r_index[2]);
2236 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
2237 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
2238 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
2239 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
2240 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
2241 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
2242 >> RELOC_STD_BITS_LENGTH_SH_BIG);
2243 }
2244 else
2245 {
d45913a0
DA		 2246 r_index = (((unsigned int) bytes->r_index[2] << 16)
2247 | ((unsigned int) bytes->r_index[1] << 8)
923f08ff
AM		 2248 | bytes->r_index[0]);
2249 r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
2250 r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
2251 r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE));
2252 r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE));
2253 r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_LITTLE));
2254 r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
2255 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
2256 }
252b5132 2257
923f08ff
AM		 2258 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
2259 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 2260 if (howto_idx < TABLE_SIZE (howto_table_std))
2261 {
2262 cache_ptr->howto = howto_table_std + howto_idx;
2263 if (cache_ptr->howto->type == (unsigned int) -1)
2264 cache_ptr->howto = NULL;
2265 }
2266 else
2267 cache_ptr->howto = NULL;
252b5132
RH		 2268
2269 /* Base relative relocs are always against the symbol table,
2270 regardless of the setting of r_extern. r_extern just reflects
2271 whether the symbol the reloc is against is local or global. */
2272 if (r_baserel)
2273 r_extern = 1;
2274
116acb2c 2275 if (r_extern && r_index >= symcount)
252b5132
RH		 2276 {
2277 /* We could arrange to return an error, but it might be useful
116acb2c
AM		 2278 to see the file even if it is bad. FIXME: Of course this
2279 means that objdump -r *doesn't* see the actual reloc, and
2280 objcopy silently writes a different reloc. */
252b5132
RH		 2281 r_extern = 0;
2282 r_index = N_ABS;
2283 }
2284
923f08ff 2285 MOVE_ADDRESS (0);
252b5132
RH		 2286}
2287
2288/* Read and swap the relocs for a section. */
2289
b34976b6 2290bfd_boolean
116c20d2 2291NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols)
252b5132 2292{
dc810e39 2293 bfd_size_type count;
252b5132 2294 bfd_size_type reloc_size;
116c20d2 2295 void * relocs;
252b5132
RH		 2296 arelent *reloc_cache;
2297 size_t each_size;
2298 unsigned int counter = 0;
2299 arelent *cache_ptr;
dc810e39 2300 bfd_size_type amt;
252b5132
RH		 2301
2302 if (asect->relocation)
b34976b6 2303 return TRUE;
252b5132
RH		 2304
2305 if (asect->flags & SEC_CONSTRUCTOR)
b34976b6 2306 return TRUE;
252b5132
RH		 2307
2308 if (asect == obj_datasec (abfd))
923f08ff 2309 reloc_size = exec_hdr (abfd)->a_drsize;
252b5132 2310 else if (asect == obj_textsec (abfd))
923f08ff 2311 reloc_size = exec_hdr (abfd)->a_trsize;
252b5132
RH		 2312 else if (asect == obj_bsssec (abfd))
2313 reloc_size = 0;
2314 else
2315 {
2316 bfd_set_error (bfd_error_invalid_operation);
b34976b6 2317 return FALSE;
252b5132
RH		 2318 }
2319
252b5132 2320 each_size = obj_reloc_entry_size (abfd);
252b5132 2321 count = reloc_size / each_size;
078c4bfc
MS		 2322 if (count == 0)
2323 return TRUE; /* Nothing to be done. */
252b5132 2324
806470a2 2325 if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
b34976b6 2326 return FALSE;
2bb3687b 2327 relocs = _bfd_malloc_and_read (abfd, reloc_size, reloc_size);
078c4bfc 2328 if (relocs == NULL)
806470a2
AM		 2329 return FALSE;
2330
806470a2
AM		 2331 amt = count * sizeof (arelent);
2332 reloc_cache = (arelent *) bfd_zmalloc (amt);
2333 if (reloc_cache == NULL)
252b5132
RH		 2334 {
2335 free (relocs);
b34976b6 2336 return FALSE;
252b5132
RH		 2337 }
2338
2339 cache_ptr = reloc_cache;
2340 if (each_size == RELOC_EXT_SIZE)
2341 {
dc810e39 2342 struct reloc_ext_external *rptr = (struct reloc_ext_external *) relocs;
252b5132
RH		 2343
2344 for (; counter < count; counter++, rptr++, cache_ptr++)
1642229e 2345 MY_swap_ext_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2346 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2347 }
2348 else
2349 {
dc810e39 2350 struct reloc_std_external *rptr = (struct reloc_std_external *) relocs;
252b5132
RH		 2351
2352 for (; counter < count; counter++, rptr++, cache_ptr++)
2353 MY_swap_std_reloc_in (abfd, rptr, cache_ptr, symbols,
dc810e39 2354 (bfd_size_type) bfd_get_symcount (abfd));
252b5132
RH		 2355 }
2356
2357 free (relocs);
2358
2359 asect->relocation = reloc_cache;
2360 asect->reloc_count = cache_ptr - reloc_cache;
2361
b34976b6 2362 return TRUE;
252b5132
RH		 2363}
2364
2365/* Write out a relocation section into an object file. */
2366
b34976b6 2367bfd_boolean
116c20d2 2368NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section)
252b5132
RH		 2369{
2370 arelent **generic;
2371 unsigned char *native, *natptr;
2372 size_t each_size;
2373
2374 unsigned int count = section->reloc_count;
dc810e39 2375 bfd_size_type natsize;
252b5132
RH		 2376
2377 if (count == 0 || section->orelocation == NULL)
b34976b6 2378 return TRUE;
252b5132
RH		 2379
2380 each_size = obj_reloc_entry_size (abfd);
dc810e39 2381 natsize = (bfd_size_type) each_size * count;
a50b1753 2382 native = (unsigned char *) bfd_zalloc (abfd, natsize);
252b5132 2383 if (!native)
b34976b6 2384 return FALSE;
252b5132
RH		 2385
2386 generic = section->orelocation;
2387
2388 if (each_size == RELOC_EXT_SIZE)
2389 {
2390 for (natptr = native;
2391 count != 0;
2392 --count, natptr += each_size, ++generic)
e2996cc3 2393 {
92744f05
NC		 2394 /* PR 20921: If the howto field has not been initialised then skip
2395 this reloc.
2396 PR 20929: Similarly for the symbol field. */
2397 if ((*generic)->howto == NULL
2398 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2399 {
2400 bfd_set_error (bfd_error_invalid_operation);
dc1e8a47
AM		 2401 _bfd_error_handler (_("%pB: attempt to write out "
2402 "unknown reloc type"), abfd);
e2996cc3
NC		 2403 return FALSE;
2404 }
2405 MY_swap_ext_reloc_out (abfd, *generic,
2406 (struct reloc_ext_external *) natptr);
2407 }
252b5132
RH		 2408 }
2409 else
2410 {
2411 for (natptr = native;
2412 count != 0;
2413 --count, natptr += each_size, ++generic)
e2996cc3 2414 {
92744f05
NC		 2415 if ((*generic)->howto == NULL
2416 || (*generic)->sym_ptr_ptr == NULL)
e2996cc3
NC		 2417 {
2418 bfd_set_error (bfd_error_invalid_operation);
dc1e8a47
AM		 2419 _bfd_error_handler (_("%pB: attempt to write out "
2420 "unknown reloc type"), abfd);
e2996cc3
NC		 2421 return FALSE;
2422 }
2423 MY_swap_std_reloc_out (abfd, *generic,
2424 (struct reloc_std_external *) natptr);
2425 }
252b5132
RH		 2426 }
2427
116c20d2 2428 if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
dc810e39 2429 {
923f08ff 2430 bfd_release (abfd, native);
b34976b6 2431 return FALSE;
dc810e39 2432 }
252b5132
RH		 2433 bfd_release (abfd, native);
2434
b34976b6 2435 return TRUE;
252b5132
RH		 2436}
2437
f7c33884
NC		 2438/* This is stupid. This function should be a boolean predicate. */
2439
252b5132 2440long
116c20d2
NC		 2441NAME (aout, canonicalize_reloc) (bfd *abfd,
2442 sec_ptr section,
2443 arelent **relptr,
2444 asymbol **symbols)
252b5132
RH		 2445{
2446 arelent *tblptr = section->relocation;
2447 unsigned int count;
2448
2449 if (section == obj_bsssec (abfd))
2450 {
2451 *relptr = NULL;
2452 return 0;
2453 }
2454
116c20d2 2455 if (!(tblptr || NAME (aout, slurp_reloc_table) (abfd, section, symbols)))
252b5132
RH		 2456 return -1;
2457
923f08ff
AM		 2458 if (section->flags & SEC_CONSTRUCTOR)
2459 {
2460 arelent_chain *chain = section->constructor_chain;
2461 for (count = 0; count < section->reloc_count; count ++)
2462 {
2463 *relptr ++ = &chain->relent;
2464 chain = chain->next;
2465 }
252b5132 2466 }
923f08ff
AM		 2467 else
2468 {
2469 tblptr = section->relocation;
252b5132 2470
923f08ff
AM		 2471 for (count = 0; count++ < section->reloc_count; )
2472 {
2473 *relptr++ = tblptr++;
2474 }
2475 }
252b5132
RH		 2476 *relptr = 0;
2477
2478 return section->reloc_count;
2479}
2480
2481long
116c20d2 2482NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect)
252b5132 2483{
3a551c7a
AM		 2484 bfd_size_type count;
2485
923f08ff
AM		 2486 if (bfd_get_format (abfd) != bfd_object)
2487 {
2488 bfd_set_error (bfd_error_invalid_operation);
2489 return -1;
2490 }
f7c33884 2491
923f08ff 2492 if (asect->flags & SEC_CONSTRUCTOR)
3a551c7a
AM		 2493 count = asect->reloc_count;
2494 else if (asect == obj_datasec (abfd))
2495 count = exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
2496 else if (asect == obj_textsec (abfd))
2497 count = exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
2498 else if (asect == obj_bsssec (abfd))
2499 count = 0;
2500 else
2501 {
2502 bfd_set_error (bfd_error_invalid_operation);
2503 return -1;
2504 }
252b5132 2505
3a551c7a
AM		 2506 if (count >= LONG_MAX / sizeof (arelent *))
2507 {
2508 bfd_set_error (bfd_error_file_too_big);
2509 return -1;
2510 }
2511 return (count + 1) * sizeof (arelent *);
252b5132 2512}
252b5132
RH		 2513\f
2514long
116c20d2 2515NAME (aout, get_symtab_upper_bound) (bfd *abfd)
252b5132 2516{
116c20d2 2517 if (!NAME (aout, slurp_symbol_table) (abfd))
252b5132
RH		 2518 return -1;
2519
2520 return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
2521}
2522
1725a96e 2523alent *
116c20d2
NC		 2524NAME (aout, get_lineno) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2525 asymbol *ignore_symbol ATTRIBUTE_UNUSED)
252b5132 2526{
116c20d2 2527 return NULL;
252b5132
RH		 2528}
2529
252b5132 2530void
116c20d2
NC		 2531NAME (aout, get_symbol_info) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
2532 asymbol *symbol,
2533 symbol_info *ret)
252b5132
RH		 2534{
2535 bfd_symbol_info (symbol, ret);
2536
2537 if (ret->type == '?')
2538 {
923f08ff 2539 int type_code = aout_symbol (symbol)->type & 0xff;
252b5132
RH		 2540 const char *stab_name = bfd_get_stab_name (type_code);
2541 static char buf[10];
2542
2543 if (stab_name == NULL)
2544 {
e60b52c6 2545 sprintf (buf, "(%d)", type_code);
252b5132
RH		 2546 stab_name = buf;
2547 }
2548 ret->type = '-';
2549 ret->stab_type = type_code;
923f08ff
AM		 2550 ret->stab_other = (unsigned) (aout_symbol (symbol)->other & 0xff);
2551 ret->stab_desc = (unsigned) (aout_symbol (symbol)->desc & 0xffff);
252b5132
RH		 2552 ret->stab_name = stab_name;
2553 }
2554}
2555
252b5132 2556void
116c20d2
NC		 2557NAME (aout, print_symbol) (bfd *abfd,
2558 void * afile,
2559 asymbol *symbol,
2560 bfd_print_symbol_type how)
252b5132
RH		 2561{
2562 FILE *file = (FILE *)afile;
2563
923f08ff 2564 switch (how)
252b5132 2565 {
923f08ff
AM		 2566 case bfd_print_symbol_name:
2567 if (symbol->name)
2568 fprintf (file,"%s", symbol->name);
2569 break;
2570 case bfd_print_symbol_more:
2571 fprintf (file,"%4x %2x %2x",
2572 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2573 (unsigned) (aout_symbol (symbol)->other & 0xff),
2574 (unsigned) (aout_symbol (symbol)->type));
2575 break;
2576 case bfd_print_symbol_all:
2577 {
2578 const char *section_name = symbol->section->name;
252b5132 2579
116c20d2 2580 bfd_print_symbol_vandf (abfd, (void *)file, symbol);
252b5132 2581
923f08ff
AM		 2582 fprintf (file," %-5s %04x %02x %02x",
2583 section_name,
2584 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2585 (unsigned) (aout_symbol (symbol)->other & 0xff),
2586 (unsigned) (aout_symbol (symbol)->type & 0xff));
2587 if (symbol->name)
2588 fprintf (file," %s", symbol->name);
2589 }
2590 break;
252b5132 2591 }
252b5132
RH		 2592}
2593
2594/* If we don't have to allocate more than 1MB to hold the generic
2595 symbols, we use the generic minisymbol methord: it's faster, since
2596 it only translates the symbols once, not multiple times. */
2597#define MINISYM_THRESHOLD (1000000 / sizeof (asymbol))
2598
2599/* Read minisymbols. For minisymbols, we use the unmodified a.out
2600 symbols. The minisymbol_to_symbol function translates these into
2601 BFD asymbol structures. */
2602
2603long
116c20d2
NC		 2604NAME (aout, read_minisymbols) (bfd *abfd,
2605 bfd_boolean dynamic,
2606 void * *minisymsp,
2607 unsigned int *sizep)
252b5132
RH		 2608{
2609 if (dynamic)
116c20d2
NC		 2610 /* We could handle the dynamic symbols here as well, but it's
2611 easier to hand them off. */
2612 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
252b5132
RH		 2613
2614 if (! aout_get_external_symbols (abfd))
2615 return -1;
2616
2617 if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2618 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
2619
116c20d2 2620 *minisymsp = (void *) obj_aout_external_syms (abfd);
252b5132
RH		 2621
2622 /* By passing the external symbols back from this routine, we are
2623 giving up control over the memory block. Clear
2624 obj_aout_external_syms, so that we do not try to free it
2625 ourselves. */
2626 obj_aout_external_syms (abfd) = NULL;
2627
2628 *sizep = EXTERNAL_NLIST_SIZE;
2629 return obj_aout_external_sym_count (abfd);
2630}
2631
2632/* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
2633 unmodified a.out symbol. The SYM argument is a structure returned
2634 by bfd_make_empty_symbol, which we fill in here. */
2635
2636asymbol *
116c20d2
NC		 2637NAME (aout, minisymbol_to_symbol) (bfd *abfd,
2638 bfd_boolean dynamic,
2639 const void * minisym,
2640 asymbol *sym)
252b5132
RH		 2641{
2642 if (dynamic
2643 || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2644 return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
2645
2646 memset (sym, 0, sizeof (aout_symbol_type));
2647
2648 /* We call translate_symbol_table to translate a single symbol. */
116c20d2 2649 if (! (NAME (aout, translate_symbol_table)
252b5132
RH		 2650 (abfd,
2651 (aout_symbol_type *) sym,
2652 (struct external_nlist *) minisym,
2653 (bfd_size_type) 1,
2654 obj_aout_external_strings (abfd),
2655 obj_aout_external_string_size (abfd),
b34976b6 2656 FALSE)))
252b5132
RH		 2657 return NULL;
2658
2659 return sym;
2660}
2661
f7c33884
NC		 2662/* Provided a BFD, a section and an offset into the section, calculate
2663 and return the name of the source file and the line nearest to the
2664 wanted location. */
252b5132 2665
b34976b6 2666bfd_boolean
116c20d2 2667NAME (aout, find_nearest_line) (bfd *abfd,
116c20d2 2668 asymbol **symbols,
fb167eb2 2669 asection *section,
116c20d2
NC		 2670 bfd_vma offset,
2671 const char **filename_ptr,
2672 const char **functionname_ptr,
fb167eb2
AM		 2673 unsigned int *line_ptr,
2674 unsigned int *disriminator_ptr)
252b5132 2675{
f7c33884 2676 /* Run down the file looking for the filename, function and linenumber. */
252b5132 2677 asymbol **p;
dc810e39
AM		 2678 const char *directory_name = NULL;
2679 const char *main_file_name = NULL;
2680 const char *current_file_name = NULL;
116c20d2 2681 const char *line_file_name = NULL; /* Value of current_file_name at line number. */
dc810e39 2682 const char *line_directory_name = NULL; /* Value of directory_name at line number. */
252b5132
RH		 2683 bfd_vma low_line_vma = 0;
2684 bfd_vma low_func_vma = 0;
2685 asymbol *func = 0;
dc810e39 2686 bfd_size_type filelen, funclen;
252b5132
RH		 2687 char *buf;
2688
765cf5f6 2689 *filename_ptr = bfd_get_filename (abfd);
50455f1a 2690 *functionname_ptr = NULL;
252b5132 2691 *line_ptr = 0;
fb167eb2
AM		 2692 if (disriminator_ptr)
2693 *disriminator_ptr = 0;
f7c33884 2694
116c20d2 2695 if (symbols != NULL)
923f08ff
AM		 2696 {
2697 for (p = symbols; *p; p++)
2698 {
2699 aout_symbol_type *q = (aout_symbol_type *) (*p);
2700 next:
2701 switch (q->type)
2702 {
2703 case N_TEXT:
2704 /* If this looks like a file name symbol, and it comes after
2705 the line number we have found so far, but before the
2706 offset, then we have probably not found the right line
2707 number. */
2708 if (q->symbol.value <= offset
2709 && ((q->symbol.value > low_line_vma
2710 && (line_file_name != NULL
2711 || *line_ptr != 0))
2712 || (q->symbol.value > low_func_vma
2713 && func != NULL)))
2714 {
2715 const char *symname;
252b5132 2716
923f08ff 2717 symname = q->symbol.name;
808346fc
NC		 2718
2719 if (symname != NULL
2720 && strlen (symname) > 2
2721 && strcmp (symname + strlen (symname) - 2, ".o") == 0)
923f08ff
AM		 2722 {
2723 if (q->symbol.value > low_line_vma)
2724 {
2725 *line_ptr = 0;
2726 line_file_name = NULL;
2727 }
2728 if (q->symbol.value > low_func_vma)
2729 func = NULL;
2730 }
2731 }
2732 break;
252b5132 2733
923f08ff
AM		 2734 case N_SO:
2735 /* If this symbol is less than the offset, but greater than
2736 the line number we have found so far, then we have not
2737 found the right line number. */
2738 if (q->symbol.value <= offset)
2739 {
2740 if (q->symbol.value > low_line_vma)
2741 {
2742 *line_ptr = 0;
2743 line_file_name = NULL;
2744 }
2745 if (q->symbol.value > low_func_vma)
2746 func = NULL;
2747 }
252b5132 2748
923f08ff
AM		 2749 main_file_name = current_file_name = q->symbol.name;
2750 /* Look ahead to next symbol to check if that too is an N_SO. */
2751 p++;
2752 if (*p == NULL)
c3864421 2753 goto done;
923f08ff
AM		 2754 q = (aout_symbol_type *) (*p);
2755 if (q->type != (int)N_SO)
2756 goto next;
2757
2758 /* Found a second N_SO First is directory; second is filename. */
2759 directory_name = current_file_name;
2760 main_file_name = current_file_name = q->symbol.name;
2761 if (obj_textsec (abfd) != section)
2762 goto done;
2763 break;
2764 case N_SOL:
2765 current_file_name = q->symbol.name;
2766 break;
252b5132 2767
923f08ff 2768 case N_SLINE:
252b5132 2769
923f08ff
AM		 2770 case N_DSLINE:
2771 case N_BSLINE:
2772 /* We'll keep this if it resolves nearer than the one we have
2773 already. */
2774 if (q->symbol.value >= low_line_vma
2775 && q->symbol.value <= offset)
2776 {
2777 *line_ptr = q->desc;
2778 low_line_vma = q->symbol.value;
2779 line_file_name = current_file_name;
2780 line_directory_name = directory_name;
2781 }
2782 break;
2783 case N_FUN:
2784 {
f7c33884 2785 /* We'll keep this if it is nearer than the one we have already. */
808346fc
NC		 2786 if (q->symbol.value >= low_func_vma
2787 && q->symbol.value <= offset)
f7c33884
NC		 2788 {
2789 low_func_vma = q->symbol.value;
2790 func = (asymbol *)q;
2791 }
923f08ff
AM		 2792 else if (q->symbol.value > offset)
2793 goto done;
2794 }
2795 break;
2796 }
252b5132 2797 }
252b5132 2798 }
252b5132
RH		 2799
2800 done:
2801 if (*line_ptr != 0)
2802 {
2803 main_file_name = line_file_name;
2804 directory_name = line_directory_name;
2805 }
2806
2807 if (main_file_name == NULL
5af11cab 2808 || IS_ABSOLUTE_PATH (main_file_name)
252b5132
RH		 2809 || directory_name == NULL)
2810 filelen = 0;
2811 else
2812 filelen = strlen (directory_name) + strlen (main_file_name);
f7c33884 2813
252b5132
RH		 2814 if (func == NULL)
2815 funclen = 0;
2816 else
2817 funclen = strlen (bfd_asymbol_name (func));
2818
2819 if (adata (abfd).line_buf != NULL)
2820 free (adata (abfd).line_buf);
f7c33884 2821
252b5132
RH		 2822 if (filelen + funclen == 0)
2823 adata (abfd).line_buf = buf = NULL;
2824 else
2825 {
a50b1753 2826 buf = (char *) bfd_malloc (filelen + funclen + 3);
252b5132
RH		 2827 adata (abfd).line_buf = buf;
2828 if (buf == NULL)
b34976b6 2829 return FALSE;
252b5132
RH		 2830 }
2831
2832 if (main_file_name != NULL)
2833 {
5af11cab 2834 if (IS_ABSOLUTE_PATH (main_file_name) || directory_name == NULL)
252b5132
RH		 2835 *filename_ptr = main_file_name;
2836 else
2837 {
50455f1a
NC		 2838 if (buf == NULL)
2839 /* PR binutils/20891: In a corrupt input file both
2840 main_file_name and directory_name can be empty... */
2841 * filename_ptr = NULL;
2842 else
2843 {
2844 snprintf (buf, filelen + 1, "%s%s", directory_name,
2845 main_file_name);
2846 *filename_ptr = buf;
2847 buf += filelen + 1;
2848 }
252b5132
RH		 2849 }
2850 }
2851
2852 if (func)
2853 {
2854 const char *function = func->name;
dc810e39 2855 char *colon;
252b5132 2856
e82ab856
NC		 2857 if (buf == NULL)
2858 {
2859 /* PR binutils/20892: In a corrupt input file func can be empty. */
2860 * functionname_ptr = NULL;
2861 return TRUE;
2862 }
252b5132
RH		 2863 /* The caller expects a symbol name. We actually have a
2864 function name, without the leading underscore. Put the
2865 underscore back in, so that the caller gets a symbol name. */
2866 if (bfd_get_symbol_leading_char (abfd) == '\0')
2867 strcpy (buf, function);
2868 else
2869 {
2870 buf[0] = bfd_get_symbol_leading_char (abfd);
2871 strcpy (buf + 1, function);
2872 }
f7c33884 2873 /* Have to remove : stuff. */
dc810e39
AM		 2874 colon = strchr (buf, ':');
2875 if (colon != NULL)
2876 *colon = '\0';
252b5132
RH		 2877 *functionname_ptr = buf;
2878 }
2879
b34976b6 2880 return TRUE;
252b5132
RH		 2881}
2882
252b5132 2883int
a6b96beb
AM		 2884NAME (aout, sizeof_headers) (bfd *abfd,
2885 struct bfd_link_info *info ATTRIBUTE_UNUSED)
252b5132 2886{
923f08ff 2887 return adata (abfd).exec_bytes_size;
252b5132
RH		 2888}
2889
2890/* Free all information we have cached for this BFD. We can always
2891 read it again later if we need it. */
2892
b34976b6 2893bfd_boolean
116c20d2 2894NAME (aout, bfd_free_cached_info) (bfd *abfd)
252b5132
RH		 2895{
2896 asection *o;
2897
920581c5
L		 2898 if (bfd_get_format (abfd) != bfd_object
2899 || abfd->tdata.aout_data == NULL)
b34976b6 2900 return TRUE;
252b5132
RH		 2901
2902#define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
2903 BFCI_FREE (obj_aout_symbols (abfd));
2904#ifdef USE_MMAP
2905 obj_aout_external_syms (abfd) = 0;
2906 bfd_free_window (&obj_aout_sym_window (abfd));
2907 bfd_free_window (&obj_aout_string_window (abfd));
2908 obj_aout_external_strings (abfd) = 0;
2909#else
2910 BFCI_FREE (obj_aout_external_syms (abfd));
2911 BFCI_FREE (obj_aout_external_strings (abfd));
2912#endif
116c20d2 2913 for (o = abfd->sections; o != NULL; o = o->next)
252b5132
RH		 2914 BFCI_FREE (o->relocation);
2915#undef BFCI_FREE
2916
b34976b6 2917 return TRUE;
252b5132
RH		 2918}
2919\f
2920/* a.out link code. */
2921
252b5132
RH		 2922/* Routine to create an entry in an a.out link hash table. */
2923
2924struct bfd_hash_entry *
116c20d2
NC		 2925NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry,
2926 struct bfd_hash_table *table,
2927 const char *string)
252b5132
RH		 2928{
2929 struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry;
2930
2931 /* Allocate the structure if it has not already been allocated by a
2932 subclass. */
116c20d2 2933 if (ret == NULL)
a50b1753 2934 ret = (struct aout_link_hash_entry *) bfd_hash_allocate (table,
07d6d2b8 2935 sizeof (* ret));
116c20d2
NC		 2936 if (ret == NULL)
2937 return NULL;
252b5132
RH		 2938
2939 /* Call the allocation method of the superclass. */
2940 ret = ((struct aout_link_hash_entry *)
2941 _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2942 table, string));
2943 if (ret)
2944 {
2945 /* Set local fields. */
b34976b6 2946 ret->written = FALSE;
252b5132
RH		 2947 ret->indx = -1;
2948 }
2949
2950 return (struct bfd_hash_entry *) ret;
2951}
2952
2953/* Initialize an a.out link hash table. */
2954
b34976b6 2955bfd_boolean
116c20d2
NC		 2956NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table,
2957 bfd *abfd,
2958 struct bfd_hash_entry *(*newfunc)
2959 (struct bfd_hash_entry *, struct bfd_hash_table *,
66eb6687
AM		 2960 const char *),
2961 unsigned int entsize)
252b5132 2962{
66eb6687 2963 return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize);
252b5132
RH		 2964}
2965
2966/* Create an a.out link hash table. */
2967
2968struct bfd_link_hash_table *
116c20d2 2969NAME (aout, link_hash_table_create) (bfd *abfd)
252b5132
RH		 2970{
2971 struct aout_link_hash_table *ret;
986f0783 2972 size_t amt = sizeof (* ret);
252b5132 2973
a50b1753 2974 ret = (struct aout_link_hash_table *) bfd_malloc (amt);
252b5132 2975 if (ret == NULL)
116c20d2 2976 return NULL;
5ed6aba4 2977
66eb6687
AM		 2978 if (!NAME (aout, link_hash_table_init) (ret, abfd,
2979 NAME (aout, link_hash_newfunc),
2980 sizeof (struct aout_link_hash_entry)))
252b5132
RH		 2981 {
2982 free (ret);
116c20d2 2983 return NULL;
252b5132
RH		 2984 }
2985 return &ret->root;
2986}
2987
116c20d2 2988/* Add all symbols from an object file to the hash table. */
252b5132 2989
b34976b6 2990static bfd_boolean
116c20d2 2991aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 2992{
116c20d2
NC		 2993 bfd_boolean (*add_one_symbol)
2994 (struct bfd_link_info *, bfd *, const char *, flagword, asection *,
2995 bfd_vma, const char *, bfd_boolean, bfd_boolean,
2996 struct bfd_link_hash_entry **);
2997 struct external_nlist *syms;
2998 bfd_size_type sym_count;
2999 char *strings;
3000 bfd_boolean copy;
3001 struct aout_link_hash_entry **sym_hash;
3002 struct external_nlist *p;
3003 struct external_nlist *pend;
3004 bfd_size_type amt;
252b5132 3005
116c20d2
NC		 3006 syms = obj_aout_external_syms (abfd);
3007 sym_count = obj_aout_external_sym_count (abfd);
3008 strings = obj_aout_external_strings (abfd);
3009 if (info->keep_memory)
3010 copy = FALSE;
3011 else
3012 copy = TRUE;
252b5132 3013
116c20d2 3014 if (aout_backend_info (abfd)->add_dynamic_symbols != NULL)
252b5132 3015 {
116c20d2
NC		 3016 if (! ((*aout_backend_info (abfd)->add_dynamic_symbols)
3017 (abfd, info, &syms, &sym_count, &strings)))
b34976b6 3018 return FALSE;
252b5132
RH		 3019 }
3020
20c6e70e
MS		 3021 if (sym_count == 0)
3022 return TRUE; /* Nothing to do. */
3023
116c20d2
NC		 3024 /* We keep a list of the linker hash table entries that correspond
3025 to particular symbols. We could just look them up in the hash
3026 table, but keeping the list is more efficient. Perhaps this
3027 should be conditional on info->keep_memory. */
3028 amt = sym_count * sizeof (struct aout_link_hash_entry *);
a50b1753 3029 sym_hash = (struct aout_link_hash_entry **) bfd_alloc (abfd, amt);
20c6e70e 3030 if (sym_hash == NULL)
116c20d2
NC		 3031 return FALSE;
3032 obj_aout_sym_hashes (abfd) = sym_hash;
252b5132 3033
116c20d2
NC		 3034 add_one_symbol = aout_backend_info (abfd)->add_one_symbol;
3035 if (add_one_symbol == NULL)
3036 add_one_symbol = _bfd_generic_link_add_one_symbol;
252b5132 3037
116c20d2
NC		 3038 p = syms;
3039 pend = p + sym_count;
3040 for (; p < pend; p++, sym_hash++)
252b5132 3041 {
116c20d2 3042 int type;
252b5132 3043 const char *name;
116c20d2
NC		 3044 bfd_vma value;
3045 asection *section;
3046 flagword flags;
3047 const char *string;
252b5132 3048
116c20d2 3049 *sym_hash = NULL;
252b5132 3050
116c20d2 3051 type = H_GET_8 (abfd, p->e_type);
252b5132 3052
116c20d2
NC		 3053 /* Ignore debugging symbols. */
3054 if ((type & N_STAB) != 0)
3055 continue;
252b5132 3056
e517df3d 3057 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
531336e3 3058 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3059 return FALSE;
116c20d2
NC		 3060 name = strings + GET_WORD (abfd, p->e_strx);
3061 value = GET_WORD (abfd, p->e_value);
3062 flags = BSF_GLOBAL;
3063 string = NULL;
3064 switch (type)
252b5132 3065 {
116c20d2
NC		 3066 default:
3067 abort ();
f7c33884 3068
116c20d2
NC		 3069 case N_UNDF:
3070 case N_ABS:
3071 case N_TEXT:
3072 case N_DATA:
3073 case N_BSS:
3074 case N_FN_SEQ:
3075 case N_COMM:
3076 case N_SETV:
3077 case N_FN:
3078 /* Ignore symbols that are not externally visible. */
3079 continue;
3080 case N_INDR:
3081 /* Ignore local indirect symbol. */
3082 ++p;
3083 ++sym_hash;
3084 continue;
252b5132 3085
116c20d2
NC		 3086 case N_UNDF | N_EXT:
3087 if (value == 0)
f7c33884 3088 {
116c20d2
NC		 3089 section = bfd_und_section_ptr;
3090 flags = 0;
252b5132
RH		 3091 }
3092 else
3093 section = bfd_com_section_ptr;
3094 break;
3095 case N_ABS | N_EXT:
3096 section = bfd_abs_section_ptr;
3097 break;
3098 case N_TEXT | N_EXT:
3099 section = obj_textsec (abfd);
fd361982 3100 value -= bfd_section_vma (section);
252b5132
RH		 3101 break;
3102 case N_DATA | N_EXT:
3103 case N_SETV | N_EXT:
3104 /* Treat N_SETV symbols as N_DATA symbol; see comment in
3105 translate_from_native_sym_flags. */
3106 section = obj_datasec (abfd);
fd361982 3107 value -= bfd_section_vma (section);
252b5132
RH		 3108 break;
3109 case N_BSS | N_EXT:
3110 section = obj_bsssec (abfd);
fd361982 3111 value -= bfd_section_vma (section);
252b5132
RH		 3112 break;
3113 case N_INDR | N_EXT:
3114 /* An indirect symbol. The next symbol is the symbol
3115 which this one really is. */
39d4daf6
NC		 3116 /* See PR 20925 for a reproducer. */
3117 if (p + 1 >= pend)
3118 return FALSE;
252b5132 3119 ++p;
e517df3d 3120 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3121 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3122 return FALSE;
252b5132
RH		 3123 string = strings + GET_WORD (abfd, p->e_strx);
3124 section = bfd_ind_section_ptr;
3125 flags |= BSF_INDIRECT;
3126 break;
3127 case N_COMM | N_EXT:
3128 section = bfd_com_section_ptr;
3129 break;
3130 case N_SETA: case N_SETA | N_EXT:
3131 section = bfd_abs_section_ptr;
3132 flags |= BSF_CONSTRUCTOR;
3133 break;
3134 case N_SETT: case N_SETT | N_EXT:
3135 section = obj_textsec (abfd);
3136 flags |= BSF_CONSTRUCTOR;
fd361982 3137 value -= bfd_section_vma (section);
252b5132
RH		 3138 break;
3139 case N_SETD: case N_SETD | N_EXT:
3140 section = obj_datasec (abfd);
3141 flags |= BSF_CONSTRUCTOR;
fd361982 3142 value -= bfd_section_vma (section);
252b5132
RH		 3143 break;
3144 case N_SETB: case N_SETB | N_EXT:
3145 section = obj_bsssec (abfd);
3146 flags |= BSF_CONSTRUCTOR;
fd361982 3147 value -= bfd_section_vma (section);
252b5132
RH		 3148 break;
3149 case N_WARNING:
3150 /* A warning symbol. The next symbol is the one to warn
9f400ee9
HPN		 3151 about. If there is no next symbol, just look away. */
3152 if (p + 1 >= pend)
3153 return TRUE;
252b5132
RH		 3154 ++p;
3155 string = name;
e517df3d 3156 /* PR 19629: Corrupt binaries can contain illegal string offsets. */
daae68f4 3157 if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
e517df3d 3158 return FALSE;
252b5132
RH		 3159 name = strings + GET_WORD (abfd, p->e_strx);
3160 section = bfd_und_section_ptr;
3161 flags |= BSF_WARNING;
3162 break;
3163 case N_WEAKU:
3164 section = bfd_und_section_ptr;
3165 flags = BSF_WEAK;
3166 break;
3167 case N_WEAKA:
3168 section = bfd_abs_section_ptr;
3169 flags = BSF_WEAK;
3170 break;
3171 case N_WEAKT:
3172 section = obj_textsec (abfd);
fd361982 3173 value -= bfd_section_vma (section);
252b5132
RH		 3174 flags = BSF_WEAK;
3175 break;
3176 case N_WEAKD:
3177 section = obj_datasec (abfd);
fd361982 3178 value -= bfd_section_vma (section);
252b5132
RH		 3179 flags = BSF_WEAK;
3180 break;
3181 case N_WEAKB:
3182 section = obj_bsssec (abfd);
fd361982 3183 value -= bfd_section_vma (section);
252b5132
RH		 3184 flags = BSF_WEAK;
3185 break;
3186 }
3187
3188 if (! ((*add_one_symbol)
b34976b6 3189 (info, abfd, name, flags, section, value, string, copy, FALSE,
252b5132 3190 (struct bfd_link_hash_entry **) sym_hash)))
b34976b6 3191 return FALSE;
252b5132
RH		 3192
3193 /* Restrict the maximum alignment of a common symbol based on
3194 the architecture, since a.out has no way to represent
3195 alignment requirements of a section in a .o file. FIXME:
3196 This isn't quite right: it should use the architecture of the
3197 output file, not the input files. */
3198 if ((*sym_hash)->root.type == bfd_link_hash_common
3199 && ((*sym_hash)->root.u.c.p->alignment_power >
3200 bfd_get_arch_info (abfd)->section_align_power))
3201 (*sym_hash)->root.u.c.p->alignment_power =
3202 bfd_get_arch_info (abfd)->section_align_power;
3203
3204 /* If this is a set symbol, and we are not building sets, then
3205 it is possible for the hash entry to not have been set. In
3206 such a case, treat the symbol as not globally defined. */
3207 if ((*sym_hash)->root.type == bfd_link_hash_new)
3208 {
3209 BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0);
3210 *sym_hash = NULL;
3211 }
3212
3213 if (type == (N_INDR | N_EXT) || type == N_WARNING)
3214 ++sym_hash;
3215 }
3216
b34976b6 3217 return TRUE;
252b5132 3218}
252b5132 3219
116c20d2
NC		 3220/* Free up the internal symbols read from an a.out file. */
3221
3222static bfd_boolean
3223aout_link_free_symbols (bfd *abfd)
252b5132 3224{
116c20d2
NC		 3225 if (obj_aout_external_syms (abfd) != NULL)
3226 {
3227#ifdef USE_MMAP
3228 bfd_free_window (&obj_aout_sym_window (abfd));
3229#else
3230 free ((void *) obj_aout_external_syms (abfd));
3231#endif
3232 obj_aout_external_syms (abfd) = NULL;
3233 }
3234 if (obj_aout_external_strings (abfd) != NULL)
3235 {
3236#ifdef USE_MMAP
3237 bfd_free_window (&obj_aout_string_window (abfd));
3238#else
3239 free ((void *) obj_aout_external_strings (abfd));
3240#endif
3241 obj_aout_external_strings (abfd) = NULL;
3242 }
3243 return TRUE;
3244}
252b5132 3245
116c20d2 3246/* Add symbols from an a.out object file. */
252b5132 3247
116c20d2
NC		 3248static bfd_boolean
3249aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
252b5132 3250{
116c20d2
NC		 3251 if (! aout_get_external_symbols (abfd))
3252 return FALSE;
3253 if (! aout_link_add_symbols (abfd, info))
3254 return FALSE;
3255 if (! info->keep_memory)
3256 {
3257 if (! aout_link_free_symbols (abfd))
3258 return FALSE;
3259 }
3260 return TRUE;
3261}
252b5132 3262
116c20d2
NC		 3263/* Look through the internal symbols to see if this object file should
3264 be included in the link. We should include this object file if it
3265 defines any symbols which are currently undefined. If this object
3266 file defines a common symbol, then we may adjust the size of the
3267 known symbol but we do not include the object file in the link
3268 (unless there is some other reason to include it). */
252b5132 3269
116c20d2
NC		 3270static bfd_boolean
3271aout_link_check_ar_symbols (bfd *abfd,
3272 struct bfd_link_info *info,
5d3236ee
DK		 3273 bfd_boolean *pneeded,
3274 bfd **subsbfd)
252b5132 3275{
116c20d2
NC		 3276 struct external_nlist *p;
3277 struct external_nlist *pend;
3278 char *strings;
252b5132 3279
116c20d2 3280 *pneeded = FALSE;
252b5132 3281
116c20d2
NC		 3282 /* Look through all the symbols. */
3283 p = obj_aout_external_syms (abfd);
3284 pend = p + obj_aout_external_sym_count (abfd);
3285 strings = obj_aout_external_strings (abfd);
3286 for (; p < pend; p++)
3287 {
3288 int type = H_GET_8 (abfd, p->e_type);
3289 const char *name;
3290 struct bfd_link_hash_entry *h;
252b5132 3291
116c20d2
NC		 3292 /* Ignore symbols that are not externally visible. This is an
3293 optimization only, as we check the type more thoroughly
3294 below. */
3295 if (((type & N_EXT) == 0
3296 || (type & N_STAB) != 0
3297 || type == N_FN)
3298 && type != N_WEAKA
3299 && type != N_WEAKT
3300 && type != N_WEAKD
3301 && type != N_WEAKB)
3302 {
3303 if (type == N_WARNING
3304 || type == N_INDR)
3305 ++p;
3306 continue;
3307 }
3308
3309 name = strings + GET_WORD (abfd, p->e_strx);
3310 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
3311
3312 /* We are only interested in symbols that are currently
3313 undefined or common. */
3314 if (h == NULL
3315 || (h->type != bfd_link_hash_undefined
3316 && h->type != bfd_link_hash_common))
3317 {
3318 if (type == (N_INDR | N_EXT))
3319 ++p;
3320 continue;
3321 }
3322
3323 if (type == (N_TEXT | N_EXT)
3324 || type == (N_DATA | N_EXT)
3325 || type == (N_BSS | N_EXT)
3326 || type == (N_ABS | N_EXT)
3327 || type == (N_INDR | N_EXT))
3328 {
3329 /* This object file defines this symbol. We must link it
3330 in. This is true regardless of whether the current
3331 definition of the symbol is undefined or common.
3332
07d6d2b8 3333 If the current definition is common, we have a case in
116c20d2 3334 which we have already seen an object file including:
07d6d2b8 3335 int a;
116c20d2 3336 and this object file from the archive includes:
07d6d2b8 3337 int a = 5;
116c20d2 3338 In such a case, whether to include this object is target
07d6d2b8 3339 dependant for backward compatibility.
116c20d2
NC		 3340
3341 FIXME: The SunOS 4.1.3 linker will pull in the archive
3342 element if the symbol is defined in the .data section,
3343 but not if it is defined in the .text section. That
3344 seems a bit crazy to me, and it has not been implemented
3345 yet. However, it might be correct. */
3346 if (h->type == bfd_link_hash_common)
3347 {
3348 int skip = 0;
3349
f88dc410 3350 switch (info->common_skip_ar_symbols)
116c20d2 3351 {
a78eea16
AM		 3352 case bfd_link_common_skip_none:
3353 break;
116c20d2
NC		 3354 case bfd_link_common_skip_text:
3355 skip = (type == (N_TEXT | N_EXT));
3356 break;
3357 case bfd_link_common_skip_data:
3358 skip = (type == (N_DATA | N_EXT));
3359 break;
116c20d2
NC		 3360 case bfd_link_common_skip_all:
3361 skip = 1;
3362 break;
3363 }
3364
3365 if (skip)
3366 continue;
3367 }
3368
0e144ba7
AM		 3369 if (!(*info->callbacks
3370 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3371 return FALSE;
3372 *pneeded = TRUE;
3373 return TRUE;
3374 }
3375
3376 if (type == (N_UNDF | N_EXT))
3377 {
3378 bfd_vma value;
3379
3380 value = GET_WORD (abfd, p->e_value);
3381 if (value != 0)
3382 {
3383 /* This symbol is common in the object from the archive
3384 file. */
3385 if (h->type == bfd_link_hash_undefined)
3386 {
3387 bfd *symbfd;
3388 unsigned int power;
3389
3390 symbfd = h->u.undef.abfd;
3391 if (symbfd == NULL)
3392 {
3393 /* This symbol was created as undefined from
3394 outside BFD. We assume that we should link
3395 in the object file. This is done for the -u
3396 option in the linker. */
0e144ba7
AM		 3397 if (!(*info->callbacks
3398 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3399 return FALSE;
3400 *pneeded = TRUE;
3401 return TRUE;
3402 }
3403 /* Turn the current link symbol into a common
3404 symbol. It is already on the undefs list. */
3405 h->type = bfd_link_hash_common;
a50b1753 3406 h->u.c.p = (struct bfd_link_hash_common_entry *)
0e144ba7
AM		 3407 bfd_hash_allocate (&info->hash->table,
3408 sizeof (struct bfd_link_hash_common_entry));
116c20d2
NC		 3409 if (h->u.c.p == NULL)
3410 return FALSE;
3411
3412 h->u.c.size = value;
3413
3414 /* FIXME: This isn't quite right. The maximum
3415 alignment of a common symbol should be set by the
3416 architecture of the output file, not of the input
3417 file. */
3418 power = bfd_log2 (value);
3419 if (power > bfd_get_arch_info (abfd)->section_align_power)
3420 power = bfd_get_arch_info (abfd)->section_align_power;
3421 h->u.c.p->alignment_power = power;
3422
3423 h->u.c.p->section = bfd_make_section_old_way (symbfd,
3424 "COMMON");
3425 }
3426 else
3427 {
3428 /* Adjust the size of the common symbol if
3429 necessary. */
3430 if (value > h->u.c.size)
3431 h->u.c.size = value;
3432 }
3433 }
3434 }
3435
3436 if (type == N_WEAKA
3437 || type == N_WEAKT
3438 || type == N_WEAKD
3439 || type == N_WEAKB)
3440 {
3441 /* This symbol is weak but defined. We must pull it in if
3442 the current link symbol is undefined, but we don't want
3443 it if the current link symbol is common. */
3444 if (h->type == bfd_link_hash_undefined)
3445 {
0e144ba7
AM		 3446 if (!(*info->callbacks
3447 ->add_archive_element) (info, abfd, name, subsbfd))
116c20d2
NC		 3448 return FALSE;
3449 *pneeded = TRUE;
3450 return TRUE;
3451 }
3452 }
3453 }
3454
3455 /* We do not need this object file. */
3456 return TRUE;
3457}
3458/* Check a single archive element to see if we need to include it in
3459 the link. *PNEEDED is set according to whether this element is
3460 needed in the link or not. This is called from
3461 _bfd_generic_link_add_archive_symbols. */
3462
3463static bfd_boolean
3464aout_link_check_archive_element (bfd *abfd,
3465 struct bfd_link_info *info,
13e570f8
AM		 3466 struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
3467 const char *name ATTRIBUTE_UNUSED,
116c20d2
NC		 3468 bfd_boolean *pneeded)
3469{
0e144ba7
AM		 3470 bfd *oldbfd;
3471 bfd_boolean needed;
5d3236ee 3472
0e144ba7 3473 if (!aout_get_external_symbols (abfd))
116c20d2
NC		 3474 return FALSE;
3475
0e144ba7
AM		 3476 oldbfd = abfd;
3477 if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd))
116c20d2
NC		 3478 return FALSE;
3479
0e144ba7
AM		 3480 needed = *pneeded;
3481 if (needed)
116c20d2 3482 {
5d3236ee
DK		 3483 /* Potentially, the add_archive_element hook may have set a
3484 substitute BFD for us. */
0e144ba7
AM		 3485 if (abfd != oldbfd)
3486 {
3487 if (!info->keep_memory
3488 && !aout_link_free_symbols (oldbfd))
3489 return FALSE;
3490 if (!aout_get_external_symbols (abfd))
3491 return FALSE;
3492 }
3493 if (!aout_link_add_symbols (abfd, info))
116c20d2
NC		 3494 return FALSE;
3495 }
3496
0e144ba7 3497 if (!info->keep_memory || !needed)
116c20d2 3498 {
0e144ba7 3499 if (!aout_link_free_symbols (abfd))
116c20d2
NC		 3500 return FALSE;
3501 }
3502
3503 return TRUE;
3504}
3505
3506/* Given an a.out BFD, add symbols to the global hash table as
3507 appropriate. */
3508
3509bfd_boolean
3510NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
3511{
3512 switch (bfd_get_format (abfd))
3513 {
3514 case bfd_object:
3515 return aout_link_add_object_symbols (abfd, info);
3516 case bfd_archive:
3517 return _bfd_generic_link_add_archive_symbols
3518 (abfd, info, aout_link_check_archive_element);
3519 default:
3520 bfd_set_error (bfd_error_wrong_format);
3521 return FALSE;
3522 }
3523}
3524\f
3525/* A hash table used for header files with N_BINCL entries. */
3526
3527struct aout_link_includes_table
3528{
3529 struct bfd_hash_table root;
3530};
3531
3532/* A linked list of totals that we have found for a particular header
3533 file. */
3534
3535struct aout_link_includes_totals
3536{
3537 struct aout_link_includes_totals *next;
3538 bfd_vma total;
3539};
3540
3541/* An entry in the header file hash table. */
3542
3543struct aout_link_includes_entry
3544{
3545 struct bfd_hash_entry root;
3546 /* List of totals we have found for this file. */
3547 struct aout_link_includes_totals *totals;
3548};
3549
3550/* Look up an entry in an the header file hash table. */
3551
3552#define aout_link_includes_lookup(table, string, create, copy) \
3553 ((struct aout_link_includes_entry *) \
3554 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
3555
3556/* During the final link step we need to pass around a bunch of
3557 information, so we do it in an instance of this structure. */
3558
3559struct aout_final_link_info
3560{
3561 /* General link information. */
3562 struct bfd_link_info *info;
3563 /* Output bfd. */
252b5132
RH		 3564 bfd *output_bfd;
3565 /* Reloc file positions. */
3566 file_ptr treloff, dreloff;
3567 /* File position of symbols. */
3568 file_ptr symoff;
3569 /* String table. */
3570 struct bfd_strtab_hash *strtab;
3571 /* Header file hash table. */
3572 struct aout_link_includes_table includes;
3573 /* A buffer large enough to hold the contents of any section. */
3574 bfd_byte *contents;
3575 /* A buffer large enough to hold the relocs of any section. */
116c20d2 3576 void * relocs;
252b5132
RH		 3577 /* A buffer large enough to hold the symbol map of any input BFD. */
3578 int *symbol_map;
3579 /* A buffer large enough to hold output symbols of any input BFD. */
3580 struct external_nlist *output_syms;
3581};
3582
252b5132
RH		 3583/* The function to create a new entry in the header file hash table. */
3584
3585static struct bfd_hash_entry *
116c20d2
NC		 3586aout_link_includes_newfunc (struct bfd_hash_entry *entry,
3587 struct bfd_hash_table *table,
3588 const char *string)
252b5132
RH		 3589{
3590 struct aout_link_includes_entry *ret =
3591 (struct aout_link_includes_entry *) entry;
3592
3593 /* Allocate the structure if it has not already been allocated by a
3594 subclass. */
116c20d2 3595 if (ret == NULL)
a50b1753 3596 ret = (struct aout_link_includes_entry *)
07d6d2b8 3597 bfd_hash_allocate (table, sizeof (* ret));
116c20d2
NC		 3598 if (ret == NULL)
3599 return NULL;
252b5132
RH		 3600
3601 /* Call the allocation method of the superclass. */
3602 ret = ((struct aout_link_includes_entry *)
3603 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
3604 if (ret)
3605 {
3606 /* Set local fields. */
3607 ret->totals = NULL;
3608 }
3609
3610 return (struct bfd_hash_entry *) ret;
3611}
3612
116c20d2
NC		 3613/* Write out a symbol that was not associated with an a.out input
3614 object. */
252b5132 3615
116c20d2 3616static bfd_boolean
7686d77d 3617aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data)
252b5132 3618{
7686d77d 3619 struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh;
57402f1e 3620 struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data;
116c20d2
NC		 3621 bfd *output_bfd;
3622 int type;
3623 bfd_vma val;
3624 struct external_nlist outsym;
3625 bfd_size_type indx;
986f0783 3626 size_t amt;
252b5132 3627
116c20d2
NC		 3628 if (h->root.type == bfd_link_hash_warning)
3629 {
3630 h = (struct aout_link_hash_entry *) h->root.u.i.link;
3631 if (h->root.type == bfd_link_hash_new)
3632 return TRUE;
3633 }
252b5132 3634
57402f1e 3635 output_bfd = flaginfo->output_bfd;
252b5132 3636
116c20d2 3637 if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
252b5132 3638 {
116c20d2 3639 if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
57402f1e 3640 (output_bfd, flaginfo->info, h)))
252b5132 3641 {
116c20d2
NC		 3642 /* FIXME: No way to handle errors. */
3643 abort ();
252b5132 3644 }
116c20d2 3645 }
252b5132 3646
116c20d2
NC		 3647 if (h->written)
3648 return TRUE;
252b5132 3649
116c20d2 3650 h->written = TRUE;
252b5132 3651
116c20d2
NC		 3652 /* An indx of -2 means the symbol must be written. */
3653 if (h->indx != -2
57402f1e
NC		 3654 && (flaginfo->info->strip == strip_all
3655 || (flaginfo->info->strip == strip_some
3656 && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string,
116c20d2
NC		 3657 FALSE, FALSE) == NULL)))
3658 return TRUE;
252b5132 3659
116c20d2 3660 switch (h->root.type)
252b5132 3661 {
116c20d2
NC		 3662 default:
3663 case bfd_link_hash_warning:
3664 abort ();
3665 /* Avoid variable not initialized warnings. */
3666 return TRUE;
3667 case bfd_link_hash_new:
3668 /* This can happen for set symbols when sets are not being
07d6d2b8 3669 built. */
116c20d2
NC		 3670 return TRUE;
3671 case bfd_link_hash_undefined:
3672 type = N_UNDF | N_EXT;
3673 val = 0;
3674 break;
3675 case bfd_link_hash_defined:
3676 case bfd_link_hash_defweak:
3677 {
3678 asection *sec;
252b5132 3679
116c20d2
NC		 3680 sec = h->root.u.def.section->output_section;
3681 BFD_ASSERT (bfd_is_abs_section (sec)
3682 || sec->owner == output_bfd);
3683 if (sec == obj_textsec (output_bfd))
3684 type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
3685 else if (sec == obj_datasec (output_bfd))
3686 type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
3687 else if (sec == obj_bsssec (output_bfd))
3688 type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
3689 else
3690 type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
3691 type |= N_EXT;
3692 val = (h->root.u.def.value
3693 + sec->vma
3694 + h->root.u.def.section->output_offset);
3695 }
3696 break;
3697 case bfd_link_hash_common:
3698 type = N_UNDF | N_EXT;
3699 val = h->root.u.c.size;
3700 break;
3701 case bfd_link_hash_undefweak:
3702 type = N_WEAKU;
3703 val = 0;
c38eb2a6 3704 break;
116c20d2
NC		 3705 case bfd_link_hash_indirect:
3706 /* We ignore these symbols, since the indirected symbol is
3707 already in the hash table. */
3708 return TRUE;
3709 }
252b5132 3710
116c20d2
NC		 3711 H_PUT_8 (output_bfd, type, outsym.e_type);
3712 H_PUT_8 (output_bfd, 0, outsym.e_other);
3713 H_PUT_16 (output_bfd, 0, outsym.e_desc);
57402f1e 3714 indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string,
116c20d2
NC		 3715 FALSE);
3716 if (indx == - (bfd_size_type) 1)
3717 /* FIXME: No way to handle errors. */
3718 abort ();
252b5132 3719
116c20d2
NC		 3720 PUT_WORD (output_bfd, indx, outsym.e_strx);
3721 PUT_WORD (output_bfd, val, outsym.e_value);
252b5132 3722
116c20d2 3723 amt = EXTERNAL_NLIST_SIZE;
57402f1e 3724 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0
116c20d2
NC		 3725 || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt)
3726 /* FIXME: No way to handle errors. */
3727 abort ();
252b5132 3728
57402f1e 3729 flaginfo->symoff += EXTERNAL_NLIST_SIZE;
116c20d2
NC		 3730 h->indx = obj_aout_external_sym_count (output_bfd);
3731 ++obj_aout_external_sym_count (output_bfd);
252b5132 3732
116c20d2
NC		 3733 return TRUE;
3734}
252b5132 3735
116c20d2 3736/* Handle a link order which is supposed to generate a reloc. */
252b5132 3737
116c20d2 3738static bfd_boolean
57402f1e 3739aout_link_reloc_link_order (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3740 asection *o,
3741 struct bfd_link_order *p)
3742{
3743 struct bfd_link_order_reloc *pr;
3744 int r_index;
3745 int r_extern;
3746 reloc_howto_type *howto;
3747 file_ptr *reloff_ptr = NULL;
3748 struct reloc_std_external srel;
3749 struct reloc_ext_external erel;
3750 void * rel_ptr;
986f0783 3751 size_t amt;
252b5132 3752
116c20d2 3753 pr = p->u.reloc.p;
252b5132 3754
116c20d2
NC		 3755 if (p->type == bfd_section_reloc_link_order)
3756 {
3757 r_extern = 0;
3758 if (bfd_is_abs_section (pr->u.section))
3759 r_index = N_ABS | N_EXT;
3760 else
3761 {
57402f1e 3762 BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd);
116c20d2
NC		 3763 r_index = pr->u.section->target_index;
3764 }
3765 }
3766 else
3767 {
3768 struct aout_link_hash_entry *h;
252b5132 3769
116c20d2
NC		 3770 BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
3771 r_extern = 1;
3772 h = ((struct aout_link_hash_entry *)
57402f1e 3773 bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info,
116c20d2
NC		 3774 pr->u.name, FALSE, FALSE, TRUE));
3775 if (h != NULL
3776 && h->indx >= 0)
3777 r_index = h->indx;
3778 else if (h != NULL)
3779 {
3780 /* We decided to strip this symbol, but it turns out that we
3781 can't. Note that we lose the other and desc information
3782 here. I don't think that will ever matter for a global
3783 symbol. */
3784 h->indx = -2;
3785 h->written = FALSE;
57402f1e 3786 if (!aout_link_write_other_symbol (&h->root.root, flaginfo))
116c20d2
NC		 3787 return FALSE;
3788 r_index = h->indx;
3789 }
3790 else
3791 {
1a72702b
AM		 3792 (*flaginfo->info->callbacks->unattached_reloc)
3793 (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0);
116c20d2
NC		 3794 r_index = 0;
3795 }
3796 }
252b5132 3797
57402f1e 3798 howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc);
116c20d2 3799 if (howto == 0)
252b5132 3800 {
116c20d2
NC		 3801 bfd_set_error (bfd_error_bad_value);
3802 return FALSE;
252b5132
RH		 3803 }
3804
57402f1e
NC		 3805 if (o == obj_textsec (flaginfo->output_bfd))
3806 reloff_ptr = &flaginfo->treloff;
3807 else if (o == obj_datasec (flaginfo->output_bfd))
3808 reloff_ptr = &flaginfo->dreloff;
116c20d2
NC		 3809 else
3810 abort ();
3811
57402f1e 3812 if (obj_reloc_entry_size (flaginfo->output_bfd) == RELOC_STD_SIZE)
252b5132 3813 {
116c20d2 3814#ifdef MY_put_reloc
57402f1e 3815 MY_put_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset, howto,
116c20d2
NC		 3816 &srel);
3817#else
3818 {
3819 int r_pcrel;
3820 int r_baserel;
3821 int r_jmptable;
3822 int r_relative;
dfa85db1 3823 unsigned int r_length;
252b5132 3824
116c20d2
NC		 3825 r_pcrel = (int) howto->pc_relative;
3826 r_baserel = (howto->type & 8) != 0;
3827 r_jmptable = (howto->type & 16) != 0;
3828 r_relative = (howto->type & 32) != 0;
dfa85db1
GN		 3829 if (bfd_get_reloc_size (howto) != 8)
3830 r_length = howto->size; /* Size as a power of two. */
3831 else
3832 r_length = 3;
252b5132 3833
57402f1e
NC		 3834 PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address);
3835 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3836 {
3837 srel.r_index[0] = r_index >> 16;
3838 srel.r_index[1] = r_index >> 8;
3839 srel.r_index[2] = r_index;
3840 srel.r_type[0] =
3841 ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
3842 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
3843 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
3844 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
3845 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
3846 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
3847 }
3848 else
3849 {
3850 srel.r_index[2] = r_index >> 16;
3851 srel.r_index[1] = r_index >> 8;
3852 srel.r_index[0] = r_index;
3853 srel.r_type[0] =
3854 ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
3855 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
3856 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
3857 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
3858 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
3859 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
3860 }
3861 }
3862#endif
3863 rel_ptr = (void *) &srel;
252b5132 3864
116c20d2
NC		 3865 /* We have to write the addend into the object file, since
3866 standard a.out relocs are in place. It would be more
3867 reliable if we had the current contents of the file here,
3868 rather than assuming zeroes, but we can't read the file since
3869 it was opened using bfd_openw. */
3870 if (pr->addend != 0)
252b5132 3871 {
116c20d2
NC		 3872 bfd_size_type size;
3873 bfd_reloc_status_type r;
3874 bfd_byte *buf;
3875 bfd_boolean ok;
3876
3877 size = bfd_get_reloc_size (howto);
a50b1753 3878 buf = (bfd_byte *) bfd_zmalloc (size);
6346d5ca 3879 if (buf == NULL && size != 0)
116c20d2 3880 return FALSE;
57402f1e 3881 r = MY_relocate_contents (howto, flaginfo->output_bfd,
116c20d2
NC		 3882 (bfd_vma) pr->addend, buf);
3883 switch (r)
252b5132 3884 {
116c20d2
NC		 3885 case bfd_reloc_ok:
3886 break;
3887 default:
3888 case bfd_reloc_outofrange:
3889 abort ();
3890 case bfd_reloc_overflow:
1a72702b
AM		 3891 (*flaginfo->info->callbacks->reloc_overflow)
3892 (flaginfo->info, NULL,
3893 (p->type == bfd_section_reloc_link_order
fd361982 3894 ? bfd_section_name (pr->u.section)
1a72702b
AM		 3895 : pr->u.name),
3896 howto->name, pr->addend, NULL, NULL, (bfd_vma) 0);
116c20d2 3897 break;
252b5132 3898 }
57402f1e 3899 ok = bfd_set_section_contents (flaginfo->output_bfd, o, (void *) buf,
116c20d2
NC		 3900 (file_ptr) p->offset, size);
3901 free (buf);
3902 if (! ok)
3903 return FALSE;
252b5132
RH		 3904 }
3905 }
116c20d2 3906 else
252b5132 3907 {
116c20d2 3908#ifdef MY_put_ext_reloc
57402f1e 3909 MY_put_ext_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset,
116c20d2
NC		 3910 howto, &erel, pr->addend);
3911#else
57402f1e 3912 PUT_WORD (flaginfo->output_bfd, p->offset, erel.r_address);
252b5132 3913
57402f1e 3914 if (bfd_header_big_endian (flaginfo->output_bfd))
116c20d2
NC		 3915 {
3916 erel.r_index[0] = r_index >> 16;
3917 erel.r_index[1] = r_index >> 8;
3918 erel.r_index[2] = r_index;
3919 erel.r_type[0] =
3920 ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
3921 | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG));
3922 }
3923 else
3924 {
3925 erel.r_index[2] = r_index >> 16;
3926 erel.r_index[1] = r_index >> 8;
3927 erel.r_index[0] = r_index;
3928 erel.r_type[0] =
3929 (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
3930 | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
3931 }
252b5132 3932
57402f1e 3933 PUT_WORD (flaginfo->output_bfd, (bfd_vma) pr->addend, erel.r_addend);
116c20d2 3934#endif /* MY_put_ext_reloc */
252b5132 3935
116c20d2 3936 rel_ptr = (void *) &erel;
252b5132 3937 }
252b5132 3938
57402f1e
NC		 3939 amt = obj_reloc_entry_size (flaginfo->output_bfd);
3940 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
3941 || bfd_bwrite (rel_ptr, amt, flaginfo->output_bfd) != amt)
116c20d2 3942 return FALSE;
252b5132 3943
57402f1e 3944 *reloff_ptr += obj_reloc_entry_size (flaginfo->output_bfd);
252b5132 3945
116c20d2
NC		 3946 /* Assert that the relocs have not run into the symbols, and that n
3947 the text relocs have not run into the data relocs. */
57402f1e
NC		 3948 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
3949 && (reloff_ptr != &flaginfo->treloff
116c20d2 3950 || (*reloff_ptr
57402f1e 3951 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 3952
3953 return TRUE;
252b5132
RH		 3954}
3955
116c20d2 3956/* Get the section corresponding to a reloc index. */
252b5132 3957
116c20d2
NC		 3958static INLINE asection *
3959aout_reloc_index_to_section (bfd *abfd, int indx)
252b5132 3960{
116c20d2 3961 switch (indx & N_TYPE)
252b5132 3962 {
116c20d2
NC		 3963 case N_TEXT: return obj_textsec (abfd);
3964 case N_DATA: return obj_datasec (abfd);
3965 case N_BSS: return obj_bsssec (abfd);
3966 case N_ABS:
3967 case N_UNDF: return bfd_abs_section_ptr;
3968 default: abort ();
252b5132 3969 }
116c20d2 3970 return NULL;
252b5132
RH		 3971}
3972
116c20d2 3973/* Relocate an a.out section using standard a.out relocs. */
252b5132 3974
b34976b6 3975static bfd_boolean
57402f1e 3976aout_link_input_section_std (struct aout_final_link_info *flaginfo,
116c20d2
NC		 3977 bfd *input_bfd,
3978 asection *input_section,
3979 struct reloc_std_external *relocs,
3980 bfd_size_type rel_size,
3981 bfd_byte *contents)
252b5132 3982{
116c20d2
NC		 3983 bfd_boolean (*check_dynamic_reloc)
3984 (struct bfd_link_info *, bfd *, asection *,
3985 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
3986 bfd_vma *);
252b5132 3987 bfd *output_bfd;
116c20d2
NC		 3988 bfd_boolean relocatable;
3989 struct external_nlist *syms;
252b5132 3990 char *strings;
116c20d2 3991 struct aout_link_hash_entry **sym_hashes;
252b5132 3992 int *symbol_map;
116c20d2
NC		 3993 bfd_size_type reloc_count;
3994 struct reloc_std_external *rel;
3995 struct reloc_std_external *rel_end;
252b5132 3996
57402f1e 3997 output_bfd = flaginfo->output_bfd;
116c20d2 3998 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
252b5132 3999
116c20d2
NC		 4000 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE);
4001 BFD_ASSERT (input_bfd->xvec->header_byteorder
4002 == output_bfd->xvec->header_byteorder);
252b5132 4003
0e1862bb 4004 relocatable = bfd_link_relocatable (flaginfo->info);
116c20d2
NC		 4005 syms = obj_aout_external_syms (input_bfd);
4006 strings = obj_aout_external_strings (input_bfd);
4007 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4008 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4009
4010 reloc_count = rel_size / RELOC_STD_SIZE;
4011 rel = relocs;
4012 rel_end = rel + reloc_count;
4013 for (; rel < rel_end; rel++)
252b5132 4014 {
116c20d2
NC		 4015 bfd_vma r_addr;
4016 int r_index;
4017 int r_extern;
4018 int r_pcrel;
4019 int r_baserel = 0;
4020 reloc_howto_type *howto;
4021 struct aout_link_hash_entry *h = NULL;
4022 bfd_vma relocation;
4023 bfd_reloc_status_type r;
252b5132 4024
116c20d2 4025 r_addr = GET_SWORD (input_bfd, rel->r_address);
252b5132 4026
116c20d2
NC		 4027#ifdef MY_reloc_howto
4028 howto = MY_reloc_howto (input_bfd, rel, r_index, r_extern, r_pcrel);
4029#else
4030 {
4031 int r_jmptable;
4032 int r_relative;
4033 int r_length;
4034 unsigned int howto_idx;
252b5132 4035
116c20d2
NC		 4036 if (bfd_header_big_endian (input_bfd))
4037 {
4038 r_index = (((unsigned int) rel->r_index[0] << 16)
4039 | ((unsigned int) rel->r_index[1] << 8)
4040 | rel->r_index[2]);
4041 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
4042 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
4043 r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
4044 r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
4045 r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
4046 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
4047 >> RELOC_STD_BITS_LENGTH_SH_BIG);
4048 }
4049 else
4050 {
4051 r_index = (((unsigned int) rel->r_index[2] << 16)
4052 | ((unsigned int) rel->r_index[1] << 8)
4053 | rel->r_index[0]);
4054 r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
4055 r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
4056 r_baserel = (0 != (rel->r_type[0]
4057 & RELOC_STD_BITS_BASEREL_LITTLE));
4058 r_jmptable= (0 != (rel->r_type[0]
4059 & RELOC_STD_BITS_JMPTABLE_LITTLE));
4060 r_relative= (0 != (rel->r_type[0]
4061 & RELOC_STD_BITS_RELATIVE_LITTLE));
4062 r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
4063 >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
4064 }
252b5132 4065
116c20d2
NC		 4066 howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
4067 + 16 * r_jmptable + 32 * r_relative);
ad756e3f
AM		 4068 if (howto_idx < TABLE_SIZE (howto_table_std))
4069 howto = howto_table_std + howto_idx;
4070 else
4071 howto = NULL;
116c20d2
NC		 4072 }
4073#endif
252b5132 4074
ad756e3f
AM		 4075 if (howto == NULL)
4076 {
0aa13fee
AM		 4077 _bfd_error_handler (_("%pB: unsupported relocation type"),
4078 input_bfd);
ad756e3f
AM		 4079 bfd_set_error (bfd_error_bad_value);
4080 return FALSE;
4081 }
4082
116c20d2 4083 if (relocatable)
252b5132 4084 {
116c20d2
NC		 4085 /* We are generating a relocatable output file, and must
4086 modify the reloc accordingly. */
4087 if (r_extern)
252b5132 4088 {
116c20d2
NC		 4089 /* If we know the symbol this relocation is against,
4090 convert it into a relocation against a section. This
4091 is what the native linker does. */
4092 h = sym_hashes[r_index];
4093 if (h != NULL
4094 && (h->root.type == bfd_link_hash_defined
4095 || h->root.type == bfd_link_hash_defweak))
252b5132 4096 {
252b5132
RH		 4097 asection *output_section;
4098
116c20d2
NC		 4099 /* Change the r_extern value. */
4100 if (bfd_header_big_endian (output_bfd))
4101 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_BIG;
4102 else
4103 rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE;
252b5132 4104
116c20d2
NC		 4105 /* Compute a new r_index. */
4106 output_section = h->root.u.def.section->output_section;
252b5132 4107 if (output_section == obj_textsec (output_bfd))
116c20d2 4108 r_index = N_TEXT;
252b5132 4109 else if (output_section == obj_datasec (output_bfd))
116c20d2 4110 r_index = N_DATA;
252b5132 4111 else if (output_section == obj_bsssec (output_bfd))
116c20d2 4112 r_index = N_BSS;
252b5132 4113 else
116c20d2 4114 r_index = N_ABS;
252b5132 4115
116c20d2
NC		 4116 /* Add the symbol value and the section VMA to the
4117 addend stored in the contents. */
4118 relocation = (h->root.u.def.value
4119 + output_section->vma
4120 + h->root.u.def.section->output_offset);
252b5132 4121 }
116c20d2 4122 else
252b5132 4123 {
116c20d2
NC		 4124 /* We must change r_index according to the symbol
4125 map. */
4126 r_index = symbol_map[r_index];
252b5132 4127
116c20d2 4128 if (r_index == -1)
252b5132 4129 {
116c20d2 4130 if (h != NULL)
252b5132 4131 {
116c20d2 4132 /* We decided to strip this symbol, but it
07d6d2b8
AM		 4133 turns out that we can't. Note that we
4134 lose the other and desc information here.
4135 I don't think that will ever matter for a
4136 global symbol. */
116c20d2 4137 if (h->indx < 0)
252b5132 4138 {
116c20d2
NC		 4139 h->indx = -2;
4140 h->written = FALSE;
7686d77d 4141 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4142 flaginfo))
116c20d2 4143 return FALSE;
252b5132 4144 }
116c20d2
NC		 4145 r_index = h->indx;
4146 }
4147 else
4148 {
4149 const char *name;
4150
4151 name = strings + GET_WORD (input_bfd,
4152 syms[r_index].e_strx);
1a72702b
AM		 4153 (*flaginfo->info->callbacks->unattached_reloc)
4154 (flaginfo->info, name,
4155 input_bfd, input_section, r_addr);
116c20d2 4156 r_index = 0;
252b5132
RH		 4157 }
4158 }
116c20d2
NC		 4159
4160 relocation = 0;
252b5132
RH		 4161 }
4162
116c20d2
NC		 4163 /* Write out the new r_index value. */
4164 if (bfd_header_big_endian (output_bfd))
252b5132 4165 {
116c20d2
NC		 4166 rel->r_index[0] = r_index >> 16;
4167 rel->r_index[1] = r_index >> 8;
4168 rel->r_index[2] = r_index;
252b5132
RH		 4169 }
4170 else
4171 {
116c20d2
NC		 4172 rel->r_index[2] = r_index >> 16;
4173 rel->r_index[1] = r_index >> 8;
4174 rel->r_index[0] = r_index;
252b5132
RH		 4175 }
4176 }
252b5132 4177 else
116c20d2
NC		 4178 {
4179 asection *section;
252b5132 4180
116c20d2
NC		 4181 /* This is a relocation against a section. We must
4182 adjust by the amount that the section moved. */
4183 section = aout_reloc_index_to_section (input_bfd, r_index);
4184 relocation = (section->output_section->vma
4185 + section->output_offset
4186 - section->vma);
4187 }
252b5132 4188
116c20d2
NC		 4189 /* Change the address of the relocation. */
4190 PUT_WORD (output_bfd,
4191 r_addr + input_section->output_offset,
4192 rel->r_address);
252b5132 4193
116c20d2
NC		 4194 /* Adjust a PC relative relocation by removing the reference
4195 to the original address in the section and including the
4196 reference to the new address. */
4197 if (r_pcrel)
4198 relocation -= (input_section->output_section->vma
4199 + input_section->output_offset
4200 - input_section->vma);
e92d460e 4201
116c20d2
NC		 4202#ifdef MY_relocatable_reloc
4203 MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
4204#endif
252b5132 4205
116c20d2
NC		 4206 if (relocation == 0)
4207 r = bfd_reloc_ok;
4208 else
4209 r = MY_relocate_contents (howto,
4210 input_bfd, relocation,
4211 contents + r_addr);
252b5132 4212 }
116c20d2
NC		 4213 else
4214 {
4215 bfd_boolean hundef;
252b5132 4216
116c20d2
NC		 4217 /* We are generating an executable, and must do a full
4218 relocation. */
4219 hundef = FALSE;
252b5132 4220
116c20d2
NC		 4221 if (r_extern)
4222 {
4223 h = sym_hashes[r_index];
252b5132 4224
116c20d2
NC		 4225 if (h != NULL
4226 && (h->root.type == bfd_link_hash_defined
4227 || h->root.type == bfd_link_hash_defweak))
4228 {
4229 relocation = (h->root.u.def.value
4230 + h->root.u.def.section->output_section->vma
4231 + h->root.u.def.section->output_offset);
4232 }
4233 else if (h != NULL
4234 && h->root.type == bfd_link_hash_undefweak)
4235 relocation = 0;
4236 else
4237 {
4238 hundef = TRUE;
4239 relocation = 0;
4240 }
4241 }
4242 else
4243 {
4244 asection *section;
252b5132 4245
116c20d2
NC		 4246 section = aout_reloc_index_to_section (input_bfd, r_index);
4247 relocation = (section->output_section->vma
4248 + section->output_offset
4249 - section->vma);
4250 if (r_pcrel)
4251 relocation += input_section->vma;
4252 }
252b5132 4253
116c20d2
NC		 4254 if (check_dynamic_reloc != NULL)
4255 {
4256 bfd_boolean skip;
252b5132 4257
116c20d2 4258 if (! ((*check_dynamic_reloc)
57402f1e 4259 (flaginfo->info, input_bfd, input_section, h,
116c20d2
NC		 4260 (void *) rel, contents, &skip, &relocation)))
4261 return FALSE;
4262 if (skip)
4263 continue;
4264 }
252b5132 4265
116c20d2 4266 /* Now warn if a global symbol is undefined. We could not
07d6d2b8
AM		 4267 do this earlier, because check_dynamic_reloc might want
4268 to skip this reloc. */
0e1862bb 4269 if (hundef && ! bfd_link_pic (flaginfo->info) && ! r_baserel)
116c20d2
NC		 4270 {
4271 const char *name;
252b5132 4272
116c20d2
NC		 4273 if (h != NULL)
4274 name = h->root.root.string;
4275 else
4276 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4277 (*flaginfo->info->callbacks->undefined_symbol)
4278 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
116c20d2 4279 }
252b5132 4280
116c20d2
NC		 4281 r = MY_final_link_relocate (howto,
4282 input_bfd, input_section,
4283 contents, r_addr, relocation,
4284 (bfd_vma) 0);
252b5132 4285 }
252b5132 4286
116c20d2
NC		 4287 if (r != bfd_reloc_ok)
4288 {
4289 switch (r)
4290 {
4291 default:
4292 case bfd_reloc_outofrange:
4293 abort ();
4294 case bfd_reloc_overflow:
4295 {
4296 const char *name;
252b5132 4297
116c20d2
NC		 4298 if (h != NULL)
4299 name = NULL;
4300 else if (r_extern)
4301 name = strings + GET_WORD (input_bfd,
4302 syms[r_index].e_strx);
4303 else
4304 {
4305 asection *s;
252b5132 4306
116c20d2 4307 s = aout_reloc_index_to_section (input_bfd, r_index);
fd361982 4308 name = bfd_section_name (s);
116c20d2 4309 }
1a72702b
AM		 4310 (*flaginfo->info->callbacks->reloc_overflow)
4311 (flaginfo->info, (h ? &h->root : NULL), name, howto->name,
4312 (bfd_vma) 0, input_bfd, input_section, r_addr);
116c20d2
NC		 4313 }
4314 break;
4315 }
4316 }
252b5132
RH		 4317 }
4318
b34976b6 4319 return TRUE;
252b5132
RH		 4320}
4321
116c20d2 4322/* Relocate an a.out section using extended a.out relocs. */
252b5132 4323
b34976b6 4324static bfd_boolean
57402f1e 4325aout_link_input_section_ext (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4326 bfd *input_bfd,
4327 asection *input_section,
4328 struct reloc_ext_external *relocs,
4329 bfd_size_type rel_size,
4330 bfd_byte *contents)
252b5132 4331{
b34976b6 4332 bfd_boolean (*check_dynamic_reloc)
116c20d2
NC		 4333 (struct bfd_link_info *, bfd *, asection *,
4334 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
4335 bfd_vma *);
252b5132 4336 bfd *output_bfd;
1049f94e 4337 bfd_boolean relocatable;
252b5132
RH		 4338 struct external_nlist *syms;
4339 char *strings;
4340 struct aout_link_hash_entry **sym_hashes;
4341 int *symbol_map;
4342 bfd_size_type reloc_count;
116c20d2
NC		 4343 struct reloc_ext_external *rel;
4344 struct reloc_ext_external *rel_end;
252b5132 4345
57402f1e 4346 output_bfd = flaginfo->output_bfd;
252b5132
RH		 4347 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
4348
116c20d2 4349 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_EXT_SIZE);
252b5132
RH		 4350 BFD_ASSERT (input_bfd->xvec->header_byteorder
4351 == output_bfd->xvec->header_byteorder);
4352
0e1862bb 4353 relocatable = bfd_link_relocatable (flaginfo->info);
252b5132
RH		 4354 syms = obj_aout_external_syms (input_bfd);
4355 strings = obj_aout_external_strings (input_bfd);
4356 sym_hashes = obj_aout_sym_hashes (input_bfd);
57402f1e 4357 symbol_map = flaginfo->symbol_map;
252b5132 4358
116c20d2 4359 reloc_count = rel_size / RELOC_EXT_SIZE;
252b5132
RH		 4360 rel = relocs;
4361 rel_end = rel + reloc_count;
4362 for (; rel < rel_end; rel++)
4363 {
4364 bfd_vma r_addr;
4365 int r_index;
4366 int r_extern;
116c20d2
NC		 4367 unsigned int r_type;
4368 bfd_vma r_addend;
252b5132 4369 struct aout_link_hash_entry *h = NULL;
116c20d2 4370 asection *r_section = NULL;
252b5132 4371 bfd_vma relocation;
252b5132
RH		 4372
4373 r_addr = GET_SWORD (input_bfd, rel->r_address);
4374
116c20d2
NC		 4375 if (bfd_header_big_endian (input_bfd))
4376 {
4377 r_index = (((unsigned int) rel->r_index[0] << 16)
4378 | ((unsigned int) rel->r_index[1] << 8)
4379 | rel->r_index[2]);
4380 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
4381 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
4382 >> RELOC_EXT_BITS_TYPE_SH_BIG);
4383 }
4384 else
4385 {
4386 r_index = (((unsigned int) rel->r_index[2] << 16)
4387 | ((unsigned int) rel->r_index[1] << 8)
4388 | rel->r_index[0]);
4389 r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
4390 r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
4391 >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
4392 }
252b5132 4393
116c20d2 4394 r_addend = GET_SWORD (input_bfd, rel->r_addend);
252b5132 4395
ad756e3f
AM		 4396 if (r_type >= TABLE_SIZE (howto_table_ext))
4397 {
0aa13fee
AM		 4398 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4399 input_bfd, r_type);
ad756e3f
AM		 4400 bfd_set_error (bfd_error_bad_value);
4401 return FALSE;
4402 }
252b5132 4403
1049f94e 4404 if (relocatable)
252b5132 4405 {
1049f94e 4406 /* We are generating a relocatable output file, and must
252b5132 4407 modify the reloc accordingly. */
116c20d2
NC		 4408 if (r_extern
4409 || r_type == (unsigned int) RELOC_BASE10
4410 || r_type == (unsigned int) RELOC_BASE13
4411 || r_type == (unsigned int) RELOC_BASE22)
252b5132
RH		 4412 {
4413 /* If we know the symbol this relocation is against,
4414 convert it into a relocation against a section. This
4415 is what the native linker does. */
116c20d2
NC		 4416 if (r_type == (unsigned int) RELOC_BASE10
4417 || r_type == (unsigned int) RELOC_BASE13
4418 || r_type == (unsigned int) RELOC_BASE22)
4419 h = NULL;
4420 else
4421 h = sym_hashes[r_index];
4422 if (h != NULL
252b5132
RH		 4423 && (h->root.type == bfd_link_hash_defined
4424 || h->root.type == bfd_link_hash_defweak))
4425 {
4426 asection *output_section;
4427
4428 /* Change the r_extern value. */
4429 if (bfd_header_big_endian (output_bfd))
116c20d2 4430 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_BIG;
252b5132 4431 else
116c20d2 4432 rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE;
252b5132
RH		 4433
4434 /* Compute a new r_index. */
4435 output_section = h->root.u.def.section->output_section;
4436 if (output_section == obj_textsec (output_bfd))
4437 r_index = N_TEXT;
4438 else if (output_section == obj_datasec (output_bfd))
4439 r_index = N_DATA;
4440 else if (output_section == obj_bsssec (output_bfd))
4441 r_index = N_BSS;
4442 else
4443 r_index = N_ABS;
4444
4445 /* Add the symbol value and the section VMA to the
116c20d2 4446 addend. */
252b5132
RH		 4447 relocation = (h->root.u.def.value
4448 + output_section->vma
4449 + h->root.u.def.section->output_offset);
116c20d2
NC		 4450
4451 /* Now RELOCATION is the VMA of the final
4452 destination. If this is a PC relative reloc,
4453 then ADDEND is the negative of the source VMA.
4454 We want to set ADDEND to the difference between
4455 the destination VMA and the source VMA, which
4456 means we must adjust RELOCATION by the change in
4457 the source VMA. This is done below. */
252b5132
RH		 4458 }
4459 else
4460 {
4461 /* We must change r_index according to the symbol
4462 map. */
4463 r_index = symbol_map[r_index];
4464
4465 if (r_index == -1)
4466 {
4467 if (h != NULL)
4468 {
4469 /* We decided to strip this symbol, but it
07d6d2b8
AM		 4470 turns out that we can't. Note that we
4471 lose the other and desc information here.
4472 I don't think that will ever matter for a
4473 global symbol. */
252b5132
RH		 4474 if (h->indx < 0)
4475 {
4476 h->indx = -2;
b34976b6 4477 h->written = FALSE;
7686d77d 4478 if (!aout_link_write_other_symbol (&h->root.root,
57402f1e 4479 flaginfo))
b34976b6 4480 return FALSE;
252b5132
RH		 4481 }
4482 r_index = h->indx;
4483 }
4484 else
4485 {
4486 const char *name;
4487
4488 name = strings + GET_WORD (input_bfd,
4489 syms[r_index].e_strx);
1a72702b
AM		 4490 (*flaginfo->info->callbacks->unattached_reloc)
4491 (flaginfo->info, name,
4492 input_bfd, input_section, r_addr);
252b5132
RH		 4493 r_index = 0;
4494 }
4495 }
4496
4497 relocation = 0;
116c20d2
NC		 4498
4499 /* If this is a PC relative reloc, then the addend
4500 is the negative of the source VMA. We must
4501 adjust it by the change in the source VMA. This
4502 is done below. */
252b5132
RH		 4503 }
4504
4505 /* Write out the new r_index value. */
4506 if (bfd_header_big_endian (output_bfd))
4507 {
4508 rel->r_index[0] = r_index >> 16;
4509 rel->r_index[1] = r_index >> 8;
4510 rel->r_index[2] = r_index;
4511 }
4512 else
4513 {
4514 rel->r_index[2] = r_index >> 16;
4515 rel->r_index[1] = r_index >> 8;
4516 rel->r_index[0] = r_index;
4517 }
4518 }
4519 else
4520 {
252b5132
RH		 4521 /* This is a relocation against a section. We must
4522 adjust by the amount that the section moved. */
116c20d2
NC		 4523 r_section = aout_reloc_index_to_section (input_bfd, r_index);
4524 relocation = (r_section->output_section->vma
4525 + r_section->output_offset
4526 - r_section->vma);
252b5132 4527
116c20d2
NC		 4528 /* If this is a PC relative reloc, then the addend is
4529 the difference in VMA between the destination and the
4530 source. We have just adjusted for the change in VMA
4531 of the destination, so we must also adjust by the
4532 change in VMA of the source. This is done below. */
4533 }
252b5132 4534
116c20d2
NC		 4535 /* As described above, we must always adjust a PC relative
4536 reloc by the change in VMA of the source. However, if
4537 pcrel_offset is set, then the addend does not include the
4538 location within the section, in which case we don't need
4539 to adjust anything. */
4540 if (howto_table_ext[r_type].pc_relative
4541 && ! howto_table_ext[r_type].pcrel_offset)
252b5132
RH		 4542 relocation -= (input_section->output_section->vma
4543 + input_section->output_offset
4544 - input_section->vma);
4545
116c20d2
NC		 4546 /* Change the addend if necessary. */
4547 if (relocation != 0)
4548 PUT_WORD (output_bfd, r_addend + relocation, rel->r_addend);
252b5132 4549
116c20d2
NC		 4550 /* Change the address of the relocation. */
4551 PUT_WORD (output_bfd,
4552 r_addr + input_section->output_offset,
4553 rel->r_address);
252b5132
RH		 4554 }
4555 else
4556 {
b34976b6 4557 bfd_boolean hundef;
116c20d2 4558 bfd_reloc_status_type r;
252b5132
RH		 4559
4560 /* We are generating an executable, and must do a full
4561 relocation. */
b34976b6 4562 hundef = FALSE;
252b5132
RH		 4563
4564 if (r_extern)
4565 {
4566 h = sym_hashes[r_index];
4567
116c20d2 4568 if (h != NULL
252b5132
RH		 4569 && (h->root.type == bfd_link_hash_defined
4570 || h->root.type == bfd_link_hash_defweak))
4571 {
4572 relocation = (h->root.u.def.value
4573 + h->root.u.def.section->output_section->vma
4574 + h->root.u.def.section->output_offset);
4575 }
116c20d2 4576 else if (h != NULL
252b5132
RH		 4577 && h->root.type == bfd_link_hash_undefweak)
4578 relocation = 0;
4579 else
4580 {
b34976b6 4581 hundef = TRUE;
252b5132
RH		 4582 relocation = 0;
4583 }
4584 }
116c20d2
NC		 4585 else if (r_type == (unsigned int) RELOC_BASE10
4586 || r_type == (unsigned int) RELOC_BASE13
4587 || r_type == (unsigned int) RELOC_BASE22)
4588 {
4589 struct external_nlist *sym;
4590 int type;
4591
4592 /* For base relative relocs, r_index is always an index
07d6d2b8 4593 into the symbol table, even if r_extern is 0. */
116c20d2
NC		 4594 sym = syms + r_index;
4595 type = H_GET_8 (input_bfd, sym->e_type);
4596 if ((type & N_TYPE) == N_TEXT
4597 || type == N_WEAKT)
4598 r_section = obj_textsec (input_bfd);
4599 else if ((type & N_TYPE) == N_DATA
4600 || type == N_WEAKD)
4601 r_section = obj_datasec (input_bfd);
4602 else if ((type & N_TYPE) == N_BSS
4603 || type == N_WEAKB)
4604 r_section = obj_bsssec (input_bfd);
4605 else if ((type & N_TYPE) == N_ABS
4606 || type == N_WEAKA)
4607 r_section = bfd_abs_section_ptr;
4608 else
4609 abort ();
4610 relocation = (r_section->output_section->vma
4611 + r_section->output_offset
4612 + (GET_WORD (input_bfd, sym->e_value)
4613 - r_section->vma));
4614 }
252b5132
RH		 4615 else
4616 {
116c20d2 4617 r_section = aout_reloc_index_to_section (input_bfd, r_index);
252b5132 4618
116c20d2
NC		 4619 /* If this is a PC relative reloc, then R_ADDEND is the
4620 difference between the two vmas, or
4621 old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
4622 where
4623 old_dest_sec == section->vma
4624 and
4625 old_src_sec == input_section->vma
4626 and
4627 old_src_off == r_addr
4628
4629 _bfd_final_link_relocate expects RELOCATION +
4630 R_ADDEND to be the VMA of the destination minus
4631 r_addr (the minus r_addr is because this relocation
4632 is not pcrel_offset, which is a bit confusing and
4633 should, perhaps, be changed), or
4634 new_dest_sec
4635 where
4636 new_dest_sec == output_section->vma + output_offset
4637 We arrange for this to happen by setting RELOCATION to
4638 new_dest_sec + old_src_sec - old_dest_sec
4639
4640 If this is not a PC relative reloc, then R_ADDEND is
4641 simply the VMA of the destination, so we set
4642 RELOCATION to the change in the destination VMA, or
4643 new_dest_sec - old_dest_sec
4644 */
4645 relocation = (r_section->output_section->vma
4646 + r_section->output_offset
4647 - r_section->vma);
4648 if (howto_table_ext[r_type].pc_relative)
252b5132
RH		 4649 relocation += input_section->vma;
4650 }
4651
4652 if (check_dynamic_reloc != NULL)
4653 {
b34976b6 4654 bfd_boolean skip;
252b5132
RH		 4655
4656 if (! ((*check_dynamic_reloc)
57402f1e 4657 (flaginfo->info, input_bfd, input_section, h,
116c20d2 4658 (void *) rel, contents, &skip, &relocation)))
b34976b6 4659 return FALSE;
252b5132
RH		 4660 if (skip)
4661 continue;
4662 }
4663
4664 /* Now warn if a global symbol is undefined. We could not
07d6d2b8
AM		 4665 do this earlier, because check_dynamic_reloc might want
4666 to skip this reloc. */
116c20d2 4667 if (hundef
0e1862bb 4668 && ! bfd_link_pic (flaginfo->info)
116c20d2
NC		 4669 && r_type != (unsigned int) RELOC_BASE10
4670 && r_type != (unsigned int) RELOC_BASE13
4671 && r_type != (unsigned int) RELOC_BASE22)
252b5132
RH		 4672 {
4673 const char *name;
4674
4675 if (h != NULL)
4676 name = h->root.root.string;
4677 else
4678 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
1a72702b
AM		 4679 (*flaginfo->info->callbacks->undefined_symbol)
4680 (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
252b5132
RH		 4681 }
4682
116c20d2
NC		 4683 if (r_type != (unsigned int) RELOC_SPARC_REV32)
4684 r = MY_final_link_relocate (howto_table_ext + r_type,
4685 input_bfd, input_section,
4686 contents, r_addr, relocation,
4687 r_addend);
4688 else
252b5132 4689 {
116c20d2 4690 bfd_vma x;
252b5132 4691
116c20d2
NC		 4692 x = bfd_get_32 (input_bfd, contents + r_addr);
4693 x = x + relocation + r_addend;
4694 bfd_putl32 (/*input_bfd,*/ x, contents + r_addr);
4695 r = bfd_reloc_ok;
4696 }
4697
4698 if (r != bfd_reloc_ok)
4699 {
4700 switch (r)
4701 {
4702 default:
4703 case bfd_reloc_outofrange:
4704 abort ();
4705 case bfd_reloc_overflow:
252b5132 4706 {
116c20d2 4707 const char *name;
252b5132 4708
116c20d2
NC		 4709 if (h != NULL)
4710 name = NULL;
4711 else if (r_extern
4712 || r_type == (unsigned int) RELOC_BASE10
4713 || r_type == (unsigned int) RELOC_BASE13
4714 || r_type == (unsigned int) RELOC_BASE22)
4715 name = strings + GET_WORD (input_bfd,
4716 syms[r_index].e_strx);
4717 else
4718 {
4719 asection *s;
4720
4721 s = aout_reloc_index_to_section (input_bfd, r_index);
fd361982 4722 name = bfd_section_name (s);
116c20d2 4723 }
1a72702b
AM		 4724 (*flaginfo->info->callbacks->reloc_overflow)
4725 (flaginfo->info, (h ? &h->root : NULL), name,
4726 howto_table_ext[r_type].name,
4727 r_addend, input_bfd, input_section, r_addr);
252b5132 4728 }
116c20d2
NC		 4729 break;
4730 }
252b5132
RH		 4731 }
4732 }
4733 }
4734
b34976b6 4735 return TRUE;
252b5132
RH		 4736}
4737
116c20d2
NC		 4738/* Link an a.out section into the output file. */
4739
4740static bfd_boolean
57402f1e 4741aout_link_input_section (struct aout_final_link_info *flaginfo,
116c20d2
NC		 4742 bfd *input_bfd,
4743 asection *input_section,
4744 file_ptr *reloff_ptr,
4745 bfd_size_type rel_size)
4746{
4747 bfd_size_type input_size;
4748 void * relocs;
4749
4750 /* Get the section contents. */
4751 input_size = input_section->size;
4752 if (! bfd_get_section_contents (input_bfd, input_section,
57402f1e 4753 (void *) flaginfo->contents,
116c20d2
NC		 4754 (file_ptr) 0, input_size))
4755 return FALSE;
4756
4757 /* Read in the relocs if we haven't already done it. */
4758 if (aout_section_data (input_section) != NULL
4759 && aout_section_data (input_section)->relocs != NULL)
4760 relocs = aout_section_data (input_section)->relocs;
4761 else
4762 {
57402f1e 4763 relocs = flaginfo->relocs;
116c20d2
NC		 4764 if (rel_size > 0)
4765 {
4766 if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
4767 || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
4768 return FALSE;
4769 }
4770 }
4771
4772 /* Relocate the section contents. */
4773 if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE)
4774 {
57402f1e 4775 if (! aout_link_input_section_std (flaginfo, input_bfd, input_section,
116c20d2 4776 (struct reloc_std_external *) relocs,
57402f1e 4777 rel_size, flaginfo->contents))
116c20d2
NC		 4778 return FALSE;
4779 }
4780 else
4781 {
57402f1e 4782 if (! aout_link_input_section_ext (flaginfo, input_bfd, input_section,
116c20d2 4783 (struct reloc_ext_external *) relocs,
57402f1e 4784 rel_size, flaginfo->contents))
116c20d2
NC		 4785 return FALSE;
4786 }
4787
4788 /* Write out the section contents. */
57402f1e 4789 if (! bfd_set_section_contents (flaginfo->output_bfd,
116c20d2 4790 input_section->output_section,
57402f1e 4791 (void *) flaginfo->contents,
116c20d2
NC		 4792 (file_ptr) input_section->output_offset,
4793 input_size))
4794 return FALSE;
4795
4796 /* If we are producing relocatable output, the relocs were
4797 modified, and we now write them out. */
0e1862bb 4798 if (bfd_link_relocatable (flaginfo->info) && rel_size > 0)
116c20d2 4799 {
57402f1e 4800 if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
116c20d2 4801 return FALSE;
57402f1e 4802 if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size)
116c20d2
NC		 4803 return FALSE;
4804 *reloff_ptr += rel_size;
4805
4806 /* Assert that the relocs have not run into the symbols, and
4807 that if these are the text relocs they have not run into the
4808 data relocs. */
57402f1e
NC		 4809 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
4810 && (reloff_ptr != &flaginfo->treloff
116c20d2 4811 || (*reloff_ptr
57402f1e 4812 <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
116c20d2
NC		 4813 }
4814
4815 return TRUE;
4816}
4817
4818/* Adjust and write out the symbols for an a.out file. Set the new
4819 symbol indices into a symbol_map. */
252b5132 4820
b34976b6 4821static bfd_boolean
57402f1e 4822aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd)
252b5132 4823{
252b5132 4824 bfd *output_bfd;
116c20d2 4825 bfd_size_type sym_count;
252b5132 4826 char *strings;
116c20d2
NC		 4827 enum bfd_link_strip strip;
4828 enum bfd_link_discard discard;
4829 struct external_nlist *outsym;
4830 bfd_size_type strtab_index;
4831 struct external_nlist *sym;
4832 struct external_nlist *sym_end;
4833 struct aout_link_hash_entry **sym_hash;
252b5132 4834 int *symbol_map;
116c20d2
NC		 4835 bfd_boolean pass;
4836 bfd_boolean skip_next;
252b5132 4837
57402f1e 4838 output_bfd = flaginfo->output_bfd;
116c20d2
NC		 4839 sym_count = obj_aout_external_sym_count (input_bfd);
4840 strings = obj_aout_external_strings (input_bfd);
57402f1e
NC		 4841 strip = flaginfo->info->strip;
4842 discard = flaginfo->info->discard;
4843 outsym = flaginfo->output_syms;
252b5132 4844
116c20d2
NC		 4845 /* First write out a symbol for this object file, unless we are
4846 discarding such symbols. */
4847 if (strip != strip_all
4848 && (strip != strip_some
765cf5f6
AM		 4849 || bfd_hash_lookup (flaginfo->info->keep_hash,
4850 bfd_get_filename (input_bfd),
116c20d2
NC		 4851 FALSE, FALSE) != NULL)
4852 && discard != discard_all)
4853 {
4854 H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
4855 H_PUT_8 (output_bfd, 0, outsym->e_other);
4856 H_PUT_16 (output_bfd, 0, outsym->e_desc);
57402f1e 4857 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
765cf5f6 4858 bfd_get_filename (input_bfd), FALSE);
116c20d2
NC		 4859 if (strtab_index == (bfd_size_type) -1)
4860 return FALSE;
4861 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
4862 PUT_WORD (output_bfd,
fd361982 4863 (bfd_section_vma (obj_textsec (input_bfd)->output_section)
116c20d2
NC		 4864 + obj_textsec (input_bfd)->output_offset),
4865 outsym->e_value);
4866 ++obj_aout_external_sym_count (output_bfd);
4867 ++outsym;
4868 }
252b5132 4869
116c20d2
NC		 4870 pass = FALSE;
4871 skip_next = FALSE;
4872 sym = obj_aout_external_syms (input_bfd);
4873 sym_end = sym + sym_count;
4874 sym_hash = obj_aout_sym_hashes (input_bfd);
57402f1e 4875 symbol_map = flaginfo->symbol_map;
116c20d2
NC		 4876 memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map);
4877 for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
252b5132 4878 {
116c20d2
NC		 4879 const char *name;
4880 int type;
4881 struct aout_link_hash_entry *h;
4882 bfd_boolean skip;
4883 asection *symsec;
4884 bfd_vma val = 0;
4885 bfd_boolean copy;
252b5132 4886
116c20d2 4887 /* We set *symbol_map to 0 above for all symbols. If it has
07d6d2b8
AM		 4888 already been set to -1 for this symbol, it means that we are
4889 discarding it because it appears in a duplicate header file.
4890 See the N_BINCL code below. */
116c20d2
NC		 4891 if (*symbol_map == -1)
4892 continue;
252b5132 4893
116c20d2 4894 /* Initialize *symbol_map to -1, which means that the symbol was
07d6d2b8
AM		 4895 not copied into the output file. We will change it later if
4896 we do copy the symbol over. */
116c20d2
NC		 4897 *symbol_map = -1;
4898
4899 type = H_GET_8 (input_bfd, sym->e_type);
4900 name = strings + GET_WORD (input_bfd, sym->e_strx);
4901
4902 h = NULL;
4903
4904 if (pass)
252b5132 4905 {
116c20d2
NC		 4906 /* Pass this symbol through. It is the target of an
4907 indirect or warning symbol. */
4908 val = GET_WORD (input_bfd, sym->e_value);
4909 pass = FALSE;
252b5132 4910 }
116c20d2 4911 else if (skip_next)
252b5132 4912 {
116c20d2
NC		 4913 /* Skip this symbol, which is the target of an indirect
4914 symbol that we have changed to no longer be an indirect
4915 symbol. */
4916 skip_next = FALSE;
4917 continue;
252b5132 4918 }
116c20d2
NC		 4919 else
4920 {
4921 struct aout_link_hash_entry *hresolve;
252b5132 4922
116c20d2
NC		 4923 /* We have saved the hash table entry for this symbol, if
4924 there is one. Note that we could just look it up again
4925 in the hash table, provided we first check that it is an
4926 external symbol. */
4927 h = *sym_hash;
252b5132 4928
116c20d2 4929 /* Use the name from the hash table, in case the symbol was
07d6d2b8 4930 wrapped. */
116c20d2
NC		 4931 if (h != NULL
4932 && h->root.type != bfd_link_hash_warning)
4933 name = h->root.root.string;
252b5132 4934
116c20d2
NC		 4935 /* If this is an indirect or warning symbol, then change
4936 hresolve to the base symbol. We also change *sym_hash so
4937 that the relocation routines relocate against the real
4938 symbol. */
4939 hresolve = h;
4940 if (h != (struct aout_link_hash_entry *) NULL
4941 && (h->root.type == bfd_link_hash_indirect
4942 || h->root.type == bfd_link_hash_warning))
252b5132 4943 {
116c20d2
NC		 4944 hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
4945 while (hresolve->root.type == bfd_link_hash_indirect
4946 || hresolve->root.type == bfd_link_hash_warning)
4947 hresolve = ((struct aout_link_hash_entry *)
4948 hresolve->root.u.i.link);
4949 *sym_hash = hresolve;
4950 }
4951
4952 /* If the symbol has already been written out, skip it. */
4953 if (h != NULL
4954 && h->written)
4955 {
4956 if ((type & N_TYPE) == N_INDR
4957 || type == N_WARNING)
4958 skip_next = TRUE;
4959 *symbol_map = h->indx;
4960 continue;
4961 }
4962
4963 /* See if we are stripping this symbol. */
4964 skip = FALSE;
4965 switch (strip)
4966 {
4967 case strip_none:
4968 break;
4969 case strip_debugger:
4970 if ((type & N_STAB) != 0)
4971 skip = TRUE;
4972 break;
4973 case strip_some:
57402f1e 4974 if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE)
116c20d2
NC		 4975 == NULL)
4976 skip = TRUE;
4977 break;
4978 case strip_all:
4979 skip = TRUE;
4980 break;
4981 }
4982 if (skip)
4983 {
4984 if (h != NULL)
4985 h->written = TRUE;
4986 continue;
4987 }
4988
4989 /* Get the value of the symbol. */
4990 if ((type & N_TYPE) == N_TEXT
4991 || type == N_WEAKT)
4992 symsec = obj_textsec (input_bfd);
4993 else if ((type & N_TYPE) == N_DATA
4994 || type == N_WEAKD)
4995 symsec = obj_datasec (input_bfd);
4996 else if ((type & N_TYPE) == N_BSS
4997 || type == N_WEAKB)
4998 symsec = obj_bsssec (input_bfd);
4999 else if ((type & N_TYPE) == N_ABS
5000 || type == N_WEAKA)
5001 symsec = bfd_abs_section_ptr;
5002 else if (((type & N_TYPE) == N_INDR
5003 && (hresolve == NULL
5004 || (hresolve->root.type != bfd_link_hash_defined
5005 && hresolve->root.type != bfd_link_hash_defweak
5006 && hresolve->root.type != bfd_link_hash_common)))
5007 || type == N_WARNING)
5008 {
5009 /* Pass the next symbol through unchanged. The
5010 condition above for indirect symbols is so that if
5011 the indirect symbol was defined, we output it with
5012 the correct definition so the debugger will
5013 understand it. */
5014 pass = TRUE;
5015 val = GET_WORD (input_bfd, sym->e_value);
5016 symsec = NULL;
5017 }
5018 else if ((type & N_STAB) != 0)
5019 {
5020 val = GET_WORD (input_bfd, sym->e_value);
5021 symsec = NULL;
5022 }
5023 else
5024 {
5025 /* If we get here with an indirect symbol, it means that
5026 we are outputting it with a real definition. In such
5027 a case we do not want to output the next symbol,
5028 which is the target of the indirection. */
5029 if ((type & N_TYPE) == N_INDR)
5030 skip_next = TRUE;
5031
5032 symsec = NULL;
5033
5034 /* We need to get the value from the hash table. We use
5035 hresolve so that if we have defined an indirect
5036 symbol we output the final definition. */
5037 if (h == NULL)
5038 {
5039 switch (type & N_TYPE)
5040 {
5041 case N_SETT:
5042 symsec = obj_textsec (input_bfd);
5043 break;
5044 case N_SETD:
5045 symsec = obj_datasec (input_bfd);
5046 break;
5047 case N_SETB:
5048 symsec = obj_bsssec (input_bfd);
5049 break;
5050 case N_SETA:
5051 symsec = bfd_abs_section_ptr;
5052 break;
5053 default:
5054 val = 0;
5055 break;
5056 }
5057 }
5058 else if (hresolve->root.type == bfd_link_hash_defined
5059 || hresolve->root.type == bfd_link_hash_defweak)
252b5132 5060 {
116c20d2 5061 asection *input_section;
252b5132
RH		 5062 asection *output_section;
5063
116c20d2
NC		 5064 /* This case usually means a common symbol which was
5065 turned into a defined symbol. */
5066 input_section = hresolve->root.u.def.section;
5067 output_section = input_section->output_section;
5068 BFD_ASSERT (bfd_is_abs_section (output_section)
5069 || output_section->owner == output_bfd);
5070 val = (hresolve->root.u.def.value
fd361982 5071 + bfd_section_vma (output_section)
116c20d2
NC		 5072 + input_section->output_offset);
5073
5074 /* Get the correct type based on the section. If
5075 this is a constructed set, force it to be
5076 globally visible. */
5077 if (type == N_SETT
5078 || type == N_SETD
5079 || type == N_SETB
5080 || type == N_SETA)
5081 type |= N_EXT;
5082
5083 type &=~ N_TYPE;
252b5132 5084
252b5132 5085 if (output_section == obj_textsec (output_bfd))
116c20d2
NC		 5086 type |= (hresolve->root.type == bfd_link_hash_defined
5087 ? N_TEXT
5088 : N_WEAKT);
252b5132 5089 else if (output_section == obj_datasec (output_bfd))
116c20d2
NC		 5090 type |= (hresolve->root.type == bfd_link_hash_defined
5091 ? N_DATA
5092 : N_WEAKD);
252b5132 5093 else if (output_section == obj_bsssec (output_bfd))
116c20d2
NC		 5094 type |= (hresolve->root.type == bfd_link_hash_defined
5095 ? N_BSS
5096 : N_WEAKB);
252b5132 5097 else
116c20d2
NC		 5098 type |= (hresolve->root.type == bfd_link_hash_defined
5099 ? N_ABS
5100 : N_WEAKA);
5101 }
5102 else if (hresolve->root.type == bfd_link_hash_common)
5103 val = hresolve->root.u.c.size;
5104 else if (hresolve->root.type == bfd_link_hash_undefweak)
5105 {
5106 val = 0;
5107 type = N_WEAKU;
252b5132
RH		 5108 }
5109 else
116c20d2
NC		 5110 val = 0;
5111 }
5112 if (symsec != NULL)
5113 val = (symsec->output_section->vma
5114 + symsec->output_offset
5115 + (GET_WORD (input_bfd, sym->e_value)
5116 - symsec->vma));
5117
5118 /* If this is a global symbol set the written flag, and if
5119 it is a local symbol see if we should discard it. */
5120 if (h != NULL)
5121 {
5122 h->written = TRUE;
5123 h->indx = obj_aout_external_sym_count (output_bfd);
5124 }
5125 else if ((type & N_TYPE) != N_SETT
5126 && (type & N_TYPE) != N_SETD
5127 && (type & N_TYPE) != N_SETB
5128 && (type & N_TYPE) != N_SETA)
5129 {
5130 switch (discard)
252b5132 5131 {
116c20d2
NC		 5132 case discard_none:
5133 case discard_sec_merge:
5134 break;
5135 case discard_l:
5136 if ((type & N_STAB) == 0
5137 && bfd_is_local_label_name (input_bfd, name))
5138 skip = TRUE;
5139 break;
5140 case discard_all:
5141 skip = TRUE;
5142 break;
5143 }
5144 if (skip)
5145 {
5146 pass = FALSE;
5147 continue;
5148 }
5149 }
252b5132 5150
116c20d2
NC		 5151 /* An N_BINCL symbol indicates the start of the stabs
5152 entries for a header file. We need to scan ahead to the
5153 next N_EINCL symbol, ignoring nesting, adding up all the
5154 characters in the symbol names, not including the file
5155 numbers in types (the first number after an open
5156 parenthesis). */
5157 if (type == (int) N_BINCL)
5158 {
5159 struct external_nlist *incl_sym;
5160 int nest;
5161 struct aout_link_includes_entry *incl_entry;
5162 struct aout_link_includes_totals *t;
5163
5164 val = 0;
5165 nest = 0;
5166 for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
5167 {
5168 int incl_type;
5169
5170 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5171 if (incl_type == (int) N_EINCL)
252b5132 5172 {
116c20d2
NC		 5173 if (nest == 0)
5174 break;
5175 --nest;
5176 }
5177 else if (incl_type == (int) N_BINCL)
5178 ++nest;
5179 else if (nest == 0)
5180 {
5181 const char *s;
5182
5183 s = strings + GET_WORD (input_bfd, incl_sym->e_strx);
5184 for (; *s != '\0'; s++)
252b5132 5185 {
116c20d2
NC		 5186 val += *s;
5187 if (*s == '(')
252b5132 5188 {
116c20d2
NC		 5189 /* Skip the file number. */
5190 ++s;
5191 while (ISDIGIT (*s))
5192 ++s;
5193 --s;
252b5132 5194 }
252b5132 5195 }
116c20d2
NC		 5196 }
5197 }
252b5132 5198
116c20d2 5199 /* If we have already included a header file with the
07d6d2b8
AM		 5200 same value, then replace this one with an N_EXCL
5201 symbol. */
57402f1e
NC		 5202 copy = (bfd_boolean) (! flaginfo->info->keep_memory);
5203 incl_entry = aout_link_includes_lookup (&flaginfo->includes,
116c20d2
NC		 5204 name, TRUE, copy);
5205 if (incl_entry == NULL)
5206 return FALSE;
5207 for (t = incl_entry->totals; t != NULL; t = t->next)
5208 if (t->total == val)
5209 break;
5210 if (t == NULL)
5211 {
5212 /* This is the first time we have seen this header
07d6d2b8 5213 file with this set of stabs strings. */
a50b1753 5214 t = (struct aout_link_includes_totals *)
07d6d2b8 5215 bfd_hash_allocate (&flaginfo->includes.root,
116c20d2
NC		 5216 sizeof *t);
5217 if (t == NULL)
5218 return FALSE;
5219 t->total = val;
5220 t->next = incl_entry->totals;
5221 incl_entry->totals = t;
5222 }
5223 else
5224 {
5225 int *incl_map;
5226
5227 /* This is a duplicate header file. We must change
07d6d2b8
AM		 5228 it to be an N_EXCL entry, and mark all the
5229 included symbols to prevent outputting them. */
116c20d2
NC		 5230 type = (int) N_EXCL;
5231
5232 nest = 0;
5233 for (incl_sym = sym + 1, incl_map = symbol_map + 1;
5234 incl_sym < sym_end;
5235 incl_sym++, incl_map++)
5236 {
5237 int incl_type;
5238
5239 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
5240 if (incl_type == (int) N_EINCL)
5241 {
5242 if (nest == 0)
5243 {
5244 *incl_map = -1;
5245 break;
5246 }
5247 --nest;
252b5132 5248 }
116c20d2
NC		 5249 else if (incl_type == (int) N_BINCL)
5250 ++nest;
5251 else if (nest == 0)
5252 *incl_map = -1;
252b5132 5253 }
252b5132
RH		 5254 }
5255 }
116c20d2
NC		 5256 }
5257
5258 /* Copy this symbol into the list of symbols we are going to
5259 write out. */
5260 H_PUT_8 (output_bfd, type, outsym->e_type);
5261 H_PUT_8 (output_bfd, H_GET_8 (input_bfd, sym->e_other), outsym->e_other);
5262 H_PUT_16 (output_bfd, H_GET_16 (input_bfd, sym->e_desc), outsym->e_desc);
5263 copy = FALSE;
57402f1e 5264 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5265 {
5266 /* name points into a string table which we are going to
5267 free. If there is a hash table entry, use that string.
5268 Otherwise, copy name into memory. */
5269 if (h != NULL)
5270 name = h->root.root.string;
252b5132 5271 else
116c20d2
NC		 5272 copy = TRUE;
5273 }
57402f1e 5274 strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
116c20d2
NC		 5275 name, copy);
5276 if (strtab_index == (bfd_size_type) -1)
5277 return FALSE;
5278 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
5279 PUT_WORD (output_bfd, val, outsym->e_value);
5280 *symbol_map = obj_aout_external_sym_count (output_bfd);
5281 ++obj_aout_external_sym_count (output_bfd);
5282 ++outsym;
5283 }
252b5132 5284
116c20d2 5285 /* Write out the output symbols we have just constructed. */
57402f1e 5286 if (outsym > flaginfo->output_syms)
116c20d2
NC		 5287 {
5288 bfd_size_type outsym_size;
252b5132 5289
57402f1e 5290 if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0)
116c20d2 5291 return FALSE;
57402f1e 5292 outsym_size = outsym - flaginfo->output_syms;
116c20d2 5293 outsym_size *= EXTERNAL_NLIST_SIZE;
57402f1e 5294 if (bfd_bwrite ((void *) flaginfo->output_syms, outsym_size, output_bfd)
116c20d2
NC		 5295 != outsym_size)
5296 return FALSE;
57402f1e 5297 flaginfo->symoff += outsym_size;
116c20d2 5298 }
252b5132 5299
116c20d2
NC		 5300 return TRUE;
5301}
252b5132 5302
116c20d2 5303/* Link an a.out input BFD into the output file. */
252b5132 5304
116c20d2 5305static bfd_boolean
57402f1e 5306aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd)
116c20d2 5307{
116c20d2 5308 BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
252b5132 5309
116c20d2
NC		 5310 /* If this is a dynamic object, it may need special handling. */
5311 if ((input_bfd->flags & DYNAMIC) != 0
5312 && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
5313 return ((*aout_backend_info (input_bfd)->link_dynamic_object)
57402f1e 5314 (flaginfo->info, input_bfd));
252b5132 5315
116c20d2 5316 /* Get the symbols. We probably have them already, unless
57402f1e 5317 flaginfo->info->keep_memory is FALSE. */
116c20d2
NC		 5318 if (! aout_get_external_symbols (input_bfd))
5319 return FALSE;
252b5132 5320
116c20d2 5321 /* Write out the symbols and get a map of the new indices. The map
57402f1e
NC		 5322 is placed into flaginfo->symbol_map. */
5323 if (! aout_link_write_symbols (flaginfo, input_bfd))
116c20d2 5324 return FALSE;
252b5132 5325
116c20d2
NC		 5326 /* Relocate and write out the sections. These functions use the
5327 symbol map created by aout_link_write_symbols. The linker_mark
5328 field will be set if these sections are to be included in the
5329 link, which will normally be the case. */
5330 if (obj_textsec (input_bfd)->linker_mark)
5331 {
57402f1e 5332 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5333 obj_textsec (input_bfd),
57402f1e 5334 &flaginfo->treloff,
116c20d2
NC		 5335 exec_hdr (input_bfd)->a_trsize))
5336 return FALSE;
5337 }
5338 if (obj_datasec (input_bfd)->linker_mark)
5339 {
57402f1e 5340 if (! aout_link_input_section (flaginfo, input_bfd,
116c20d2 5341 obj_datasec (input_bfd),
57402f1e 5342 &flaginfo->dreloff,
116c20d2
NC		 5343 exec_hdr (input_bfd)->a_drsize))
5344 return FALSE;
5345 }
5346
5347 /* If we are not keeping memory, we don't need the symbols any
5348 longer. We still need them if we are keeping memory, because the
5349 strings in the hash table point into them. */
57402f1e 5350 if (! flaginfo->info->keep_memory)
116c20d2
NC		 5351 {
5352 if (! aout_link_free_symbols (input_bfd))
5353 return FALSE;
5354 }
5355
5356 return TRUE;
5357}
5358
5359/* Do the final link step. This is called on the output BFD. The
5360 INFO structure should point to a list of BFDs linked through the
c72f2fb2 5361 link.next field which can be used to find each BFD which takes part
116c20d2
NC		 5362 in the output. Also, each section in ABFD should point to a list
5363 of bfd_link_order structures which list all the input sections for
5364 the output section. */
5365
5366bfd_boolean
5367NAME (aout, final_link) (bfd *abfd,
5368 struct bfd_link_info *info,
5369 void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *))
5370{
5371 struct aout_final_link_info aout_info;
5372 bfd_boolean includes_hash_initialized = FALSE;
5373 bfd *sub;
5374 bfd_size_type trsize, drsize;
5375 bfd_size_type max_contents_size;
5376 bfd_size_type max_relocs_size;
5377 bfd_size_type max_sym_count;
116c20d2
NC		 5378 struct bfd_link_order *p;
5379 asection *o;
5380 bfd_boolean have_link_order_relocs;
5381
0e1862bb 5382 if (bfd_link_pic (info))
116c20d2
NC		 5383 abfd->flags |= DYNAMIC;
5384
5385 aout_info.info = info;
5386 aout_info.output_bfd = abfd;
5387 aout_info.contents = NULL;
5388 aout_info.relocs = NULL;
5389 aout_info.symbol_map = NULL;
5390 aout_info.output_syms = NULL;
252b5132 5391
66eb6687
AM		 5392 if (!bfd_hash_table_init_n (&aout_info.includes.root,
5393 aout_link_includes_newfunc,
5394 sizeof (struct aout_link_includes_entry),
5395 251))
116c20d2
NC		 5396 goto error_return;
5397 includes_hash_initialized = TRUE;
252b5132 5398
116c20d2
NC		 5399 /* Figure out the largest section size. Also, if generating
5400 relocatable output, count the relocs. */
5401 trsize = 0;
5402 drsize = 0;
5403 max_contents_size = 0;
5404 max_relocs_size = 0;
5405 max_sym_count = 0;
c72f2fb2 5406 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2
NC		 5407 {
5408 bfd_size_type sz;
252b5132 5409
0e1862bb 5410 if (bfd_link_relocatable (info))
116c20d2
NC		 5411 {
5412 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
252b5132 5413 {
116c20d2
NC		 5414 trsize += exec_hdr (sub)->a_trsize;
5415 drsize += exec_hdr (sub)->a_drsize;
252b5132 5416 }
252b5132
RH		 5417 else
5418 {
116c20d2
NC		 5419 /* FIXME: We need to identify the .text and .data sections
5420 and call get_reloc_upper_bound and canonicalize_reloc to
5421 work out the number of relocs needed, and then multiply
5422 by the reloc size. */
4eca0228 5423 _bfd_error_handler
695344c0 5424 /* xgettext:c-format */
871b3ab2 5425 (_("%pB: relocatable link from %s to %s not supported"),
dae82561 5426 abfd, sub->xvec->name, abfd->xvec->name);
116c20d2
NC		 5427 bfd_set_error (bfd_error_invalid_operation);
5428 goto error_return;
252b5132 5429 }
116c20d2 5430 }
252b5132 5431
116c20d2
NC		 5432 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
5433 {
5434 sz = obj_textsec (sub)->size;
5435 if (sz > max_contents_size)
5436 max_contents_size = sz;
5437 sz = obj_datasec (sub)->size;
5438 if (sz > max_contents_size)
5439 max_contents_size = sz;
252b5132 5440
116c20d2
NC		 5441 sz = exec_hdr (sub)->a_trsize;
5442 if (sz > max_relocs_size)
5443 max_relocs_size = sz;
5444 sz = exec_hdr (sub)->a_drsize;
5445 if (sz > max_relocs_size)
5446 max_relocs_size = sz;
252b5132 5447
116c20d2
NC		 5448 sz = obj_aout_external_sym_count (sub);
5449 if (sz > max_sym_count)
5450 max_sym_count = sz;
252b5132
RH		 5451 }
5452 }
5453
0e1862bb 5454 if (bfd_link_relocatable (info))
116c20d2
NC		 5455 {
5456 if (obj_textsec (abfd) != NULL)
5457 trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
8423293d 5458 ->map_head.link_order)
116c20d2
NC		 5459 * obj_reloc_entry_size (abfd));
5460 if (obj_datasec (abfd) != NULL)
5461 drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
8423293d 5462 ->map_head.link_order)
116c20d2
NC		 5463 * obj_reloc_entry_size (abfd));
5464 }
252b5132 5465
116c20d2
NC		 5466 exec_hdr (abfd)->a_trsize = trsize;
5467 exec_hdr (abfd)->a_drsize = drsize;
252b5132 5468
116c20d2 5469 exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
252b5132 5470
116c20d2
NC		 5471 /* Adjust the section sizes and vmas according to the magic number.
5472 This sets a_text, a_data and a_bss in the exec_hdr and sets the
5473 filepos for each section. */
3a8c4a5b 5474 if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
116c20d2 5475 goto error_return;
252b5132 5476
116c20d2
NC		 5477 /* The relocation and symbol file positions differ among a.out
5478 targets. We are passed a callback routine from the backend
5479 specific code to handle this.
5480 FIXME: At this point we do not know how much space the symbol
5481 table will require. This will not work for any (nonstandard)
5482 a.out target that needs to know the symbol table size before it
dc12032b 5483 can compute the relocation file positions. */
116c20d2
NC		 5484 (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
5485 &aout_info.symoff);
5486 obj_textsec (abfd)->rel_filepos = aout_info.treloff;
5487 obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
5488 obj_sym_filepos (abfd) = aout_info.symoff;
252b5132 5489
116c20d2
NC		 5490 /* We keep a count of the symbols as we output them. */
5491 obj_aout_external_sym_count (abfd) = 0;
5492
5493 /* We accumulate the string table as we write out the symbols. */
5494 aout_info.strtab = _bfd_stringtab_init ();
5495 if (aout_info.strtab == NULL)
5496 goto error_return;
5497
5498 /* Allocate buffers to hold section contents and relocs. */
a50b1753 5499 aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
116c20d2 5500 aout_info.relocs = bfd_malloc (max_relocs_size);
c38eb2a6 5501 aout_info.symbol_map = (int *) bfd_malloc (max_sym_count * sizeof (int));
a50b1753
NC		 5502 aout_info.output_syms = (struct external_nlist *)
5503 bfd_malloc ((max_sym_count + 1) * sizeof (struct external_nlist));
116c20d2
NC		 5504 if ((aout_info.contents == NULL && max_contents_size != 0)
5505 || (aout_info.relocs == NULL && max_relocs_size != 0)
5506 || (aout_info.symbol_map == NULL && max_sym_count != 0)
5507 || aout_info.output_syms == NULL)
5508 goto error_return;
5509
5510 /* If we have a symbol named __DYNAMIC, force it out now. This is
5511 required by SunOS. Doing this here rather than in sunos.c is a
5512 hack, but it's easier than exporting everything which would be
5513 needed. */
5514 {
5515 struct aout_link_hash_entry *h;
5516
5517 h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
5518 FALSE, FALSE, FALSE);
5519 if (h != NULL)
7686d77d 5520 aout_link_write_other_symbol (&h->root.root, &aout_info);
116c20d2
NC		 5521 }
5522
5523 /* The most time efficient way to do the link would be to read all
5524 the input object files into memory and then sort out the
5525 information into the output file. Unfortunately, that will
5526 probably use too much memory. Another method would be to step
5527 through everything that composes the text section and write it
5528 out, and then everything that composes the data section and write
5529 it out, and then write out the relocs, and then write out the
5530 symbols. Unfortunately, that requires reading stuff from each
5531 input file several times, and we will not be able to keep all the
5532 input files open simultaneously, and reopening them will be slow.
5533
5534 What we do is basically process one input file at a time. We do
5535 everything we need to do with an input file once--copy over the
5536 section contents, handle the relocation information, and write
5537 out the symbols--and then we throw away the information we read
5538 from it. This approach requires a lot of lseeks of the output
5539 file, which is unfortunate but still faster than reopening a lot
5540 of files.
5541
5542 We use the output_has_begun field of the input BFDs to see
5543 whether we have already handled it. */
c72f2fb2 5544 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
116c20d2 5545 sub->output_has_begun = FALSE;
252b5132 5546
116c20d2
NC		 5547 /* Mark all sections which are to be included in the link. This
5548 will normally be every section. We need to do this so that we
5549 can identify any sections which the linker has decided to not
5550 include. */
5551 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5552 {
8423293d 5553 for (p = o->map_head.link_order; p != NULL; p = p->next)
116c20d2
NC		 5554 if (p->type == bfd_indirect_link_order)
5555 p->u.indirect.section->linker_mark = TRUE;
252b5132
RH		 5556 }
5557
116c20d2
NC		 5558 have_link_order_relocs = FALSE;
5559 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5560 {
8423293d 5561 for (p = o->map_head.link_order;
116c20d2
NC		 5562 p != NULL;
5563 p = p->next)
252b5132 5564 {
116c20d2
NC		 5565 if (p->type == bfd_indirect_link_order
5566 && (bfd_get_flavour (p->u.indirect.section->owner)
5567 == bfd_target_aout_flavour))
252b5132 5568 {
116c20d2
NC		 5569 bfd *input_bfd;
5570
5571 input_bfd = p->u.indirect.section->owner;
5572 if (! input_bfd->output_has_begun)
252b5132 5573 {
116c20d2
NC		 5574 if (! aout_link_input_bfd (&aout_info, input_bfd))
5575 goto error_return;
5576 input_bfd->output_has_begun = TRUE;
252b5132 5577 }
252b5132 5578 }
116c20d2
NC		 5579 else if (p->type == bfd_section_reloc_link_order
5580 || p->type == bfd_symbol_reloc_link_order)
5581 {
5582 /* These are handled below. */
5583 have_link_order_relocs = TRUE;
5584 }
5585 else
5586 {
5587 if (! _bfd_default_link_order (abfd, info, o, p))
5588 goto error_return;
5589 }
252b5132
RH		 5590 }
5591 }
252b5132 5592
116c20d2 5593 /* Write out any symbols that we have not already written out. */
7686d77d
AM		 5594 bfd_hash_traverse (&info->hash->table,
5595 aout_link_write_other_symbol,
5596 &aout_info);
116c20d2
NC		 5597
5598 /* Now handle any relocs we were asked to create by the linker.
5599 These did not come from any input file. We must do these after
5600 we have written out all the symbols, so that we know the symbol
5601 indices to use. */
5602 if (have_link_order_relocs)
5603 {
5604 for (o = abfd->sections; o != NULL; o = o->next)
252b5132 5605 {
8423293d 5606 for (p = o->map_head.link_order;
116c20d2
NC		 5607 p != NULL;
5608 p = p->next)
5609 {
5610 if (p->type == bfd_section_reloc_link_order
5611 || p->type == bfd_symbol_reloc_link_order)
5612 {
5613 if (! aout_link_reloc_link_order (&aout_info, o, p))
5614 goto error_return;
5615 }
5616 }
252b5132 5617 }
116c20d2 5618 }
252b5132 5619
116c20d2
NC		 5620 if (aout_info.contents != NULL)
5621 {
5622 free (aout_info.contents);
5623 aout_info.contents = NULL;
5624 }
5625 if (aout_info.relocs != NULL)
5626 {
5627 free (aout_info.relocs);
5628 aout_info.relocs = NULL;
5629 }
5630 if (aout_info.symbol_map != NULL)
5631 {
5632 free (aout_info.symbol_map);
5633 aout_info.symbol_map = NULL;
5634 }
5635 if (aout_info.output_syms != NULL)
5636 {
5637 free (aout_info.output_syms);
5638 aout_info.output_syms = NULL;
5639 }
5640 if (includes_hash_initialized)
5641 {
5642 bfd_hash_table_free (&aout_info.includes.root);
5643 includes_hash_initialized = FALSE;
5644 }
252b5132 5645
116c20d2
NC		 5646 /* Finish up any dynamic linking we may be doing. */
5647 if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
5648 {
5649 if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
5650 goto error_return;
252b5132
RH		 5651 }
5652
116c20d2
NC		 5653 /* Update the header information. */
5654 abfd->symcount = obj_aout_external_sym_count (abfd);
5655 exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
5656 obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
5657 obj_textsec (abfd)->reloc_count =
5658 exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
5659 obj_datasec (abfd)->reloc_count =
5660 exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
252b5132 5661
116c20d2 5662 /* Write out the string table, unless there are no symbols. */
f6e688f7
AM		 5663 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0)
5664 goto error_return;
116c20d2
NC		 5665 if (abfd->symcount > 0)
5666 {
f6e688f7 5667 if (!emit_stringtab (abfd, aout_info.strtab))
116c20d2
NC		 5668 goto error_return;
5669 }
f6e688f7 5670 else
116c20d2 5671 {
f6e688f7 5672 bfd_byte b[BYTES_IN_WORD];
252b5132 5673
f6e688f7
AM		 5674 memset (b, 0, BYTES_IN_WORD);
5675 if (bfd_bwrite (b, (bfd_size_type) BYTES_IN_WORD, abfd) != BYTES_IN_WORD)
116c20d2
NC		 5676 goto error_return;
5677 }
252b5132 5678
b34976b6 5679 return TRUE;
116c20d2
NC		 5680
5681 error_return:
5682 if (aout_info.contents != NULL)
5683 free (aout_info.contents);
5684 if (aout_info.relocs != NULL)
5685 free (aout_info.relocs);
5686 if (aout_info.symbol_map != NULL)
5687 free (aout_info.symbol_map);
5688 if (aout_info.output_syms != NULL)
5689 free (aout_info.output_syms);
5690 if (includes_hash_initialized)
5691 bfd_hash_table_free (&aout_info.includes.root);
5692 return FALSE;
252b5132 5693}
GDB Binutils - Deliverables
This page took 1.34455 seconds and 4 git commands to generate.