1 /* BFD semi-generic back-end for a.out binaries.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
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
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
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.
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
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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
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
36 adds to the basic a.out functions support for sun3, sun4, 386
37 and 29k a.out files, to create a target jump vector for a
40 This information is further split out into more specific files
41 for each machine, including @file{sunos.c} for sun3 and sun4,
42 @file{newsos3.c} for the Sony NEWS, and @file{demo64.c} for a
43 demonstration of a 64 bit a.out format.
45 The base file @file{aoutx.h} defines general mechanisms for
46 reading and writing records to and from disk and various
47 other methods which BFD requires. It is included by
48 @file{aout32.c} and @file{aout64.c} to form the names
49 <<aout_32_swap_exec_header_in>>, <<aout_64_swap_exec_header_in>>, etc.
51 As an example, this is what goes on to make the back end for a
52 sun4, from @file{aout32.c}:
54 | #define ARCH_SIZE 32
60 | aout_32_canonicalize_reloc
61 | aout_32_find_nearest_line
63 | aout_32_get_reloc_upper_bound
68 | #define TARGET_NAME "a.out-sunos-big"
69 | #define VECNAME sunos_big_vec
72 requires all the names from @file{aout32.c}, and produces the jump vector
76 The file @file{host-aout.c} is a special case. It is for a large set
77 of hosts that use ``more or less standard'' a.out files, and
78 for which cross-debugging is not interesting. It uses the
79 standard 32-bit a.out support routines, but determines the
80 file offsets and addresses of the text, data, and BSS
81 sections, the machine architecture and machine type, and the
82 entry point address, in a host-dependent manner. Once these
83 values have been determined, generic code is used to handle
86 When porting it to run on a new system, you must supply:
90 | HOST_MACHINE_ARCH (optional)
91 | HOST_MACHINE_MACHINE (optional)
92 | HOST_TEXT_START_ADDR
95 in the file @file{../include/sys/h-@var{XXX}.h} (for your host). These
96 values, plus the structures and macros defined in @file{a.out.h} on
97 your host system, will produce a BFD target that will access
98 ordinary a.out files on your host. To configure a new machine
99 to use @file{host-aout.c}, specify:
101 | TDEFAULTS = -DDEFAULT_VECTOR=host_aout_big_vec
102 | TDEPFILES= host-aout.o trad-core.o
104 in the @file{config/@var{XXX}.mt} file, and modify @file{configure.in}
106 @file{@var{XXX}.mt} file (by setting "<<bfd_target=XXX>>") when your
107 configuration is selected.
112 * Any BFD with D_PAGED set is ZMAGIC, and vice versa.
113 Doesn't matter what the setting of WP_TEXT is on output, but it'll
115 * Any BFD with D_PAGED clear and WP_TEXT set is NMAGIC.
116 * Any BFD with both flags clear is OMAGIC.
117 (Just want to make these explicit, so the conditions tested in this
118 file make sense if you're more familiar with a.out than with BFD.) */
120 #define KEEPIT udata.i
122 #include <string.h> /* For strchr and friends */
129 #include "aout/aout64.h"
130 #include "aout/stab_gnu.h"
133 static boolean aout_get_external_symbols
PARAMS ((bfd
*));
134 static boolean translate_from_native_sym_flags
135 PARAMS ((bfd
*, aout_symbol_type
*));
136 static boolean translate_to_native_sym_flags
137 PARAMS ((bfd
*, asymbol
*, struct external_nlist
*));
144 The file @file{aoutx.h} provides for both the @emph{standard}
145 and @emph{extended} forms of a.out relocation records.
147 The standard records contain only an
148 address, a symbol index, and a type field. The extended records
149 (used on 29ks and sparcs) also have a full integer for an
153 #ifndef CTOR_TABLE_RELOC_HOWTO
154 #define CTOR_TABLE_RELOC_IDX 2
155 #define CTOR_TABLE_RELOC_HOWTO(BFD) ((obj_reloc_entry_size(BFD) == RELOC_EXT_SIZE \
156 ? howto_table_ext : howto_table_std) \
157 + CTOR_TABLE_RELOC_IDX)
160 #ifndef MY_swap_std_reloc_in
161 #define MY_swap_std_reloc_in NAME(aout,swap_std_reloc_in)
164 #ifndef MY_swap_std_reloc_out
165 #define MY_swap_std_reloc_out NAME(aout,swap_std_reloc_out)
168 #ifndef MY_final_link_relocate
169 #define MY_final_link_relocate _bfd_final_link_relocate
172 #ifndef MY_relocate_contents
173 #define MY_relocate_contents _bfd_relocate_contents
176 #define howto_table_ext NAME(aout,ext_howto_table)
177 #define howto_table_std NAME(aout,std_howto_table)
179 reloc_howto_type howto_table_ext
[] =
181 /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */
182 HOWTO(RELOC_8
, 0, 0, 8, false, 0, complain_overflow_bitfield
,0,"8", false, 0,0x000000ff, false),
183 HOWTO(RELOC_16
, 0, 1, 16, false, 0, complain_overflow_bitfield
,0,"16", false, 0,0x0000ffff, false),
184 HOWTO(RELOC_32
, 0, 2, 32, false, 0, complain_overflow_bitfield
,0,"32", false, 0,0xffffffff, false),
185 HOWTO(RELOC_DISP8
, 0, 0, 8, true, 0, complain_overflow_signed
,0,"DISP8", false, 0,0x000000ff, false),
186 HOWTO(RELOC_DISP16
, 0, 1, 16, true, 0, complain_overflow_signed
,0,"DISP16", false, 0,0x0000ffff, false),
187 HOWTO(RELOC_DISP32
, 0, 2, 32, true, 0, complain_overflow_signed
,0,"DISP32", false, 0,0xffffffff, false),
188 HOWTO(RELOC_WDISP30
,2, 2, 30, true, 0, complain_overflow_signed
,0,"WDISP30", false, 0,0x3fffffff, false),
189 HOWTO(RELOC_WDISP22
,2, 2, 22, true, 0, complain_overflow_signed
,0,"WDISP22", false, 0,0x003fffff, false),
190 HOWTO(RELOC_HI22
, 10, 2, 22, false, 0, complain_overflow_bitfield
,0,"HI22", false, 0,0x003fffff, false),
191 HOWTO(RELOC_22
, 0, 2, 22, false, 0, complain_overflow_bitfield
,0,"22", false, 0,0x003fffff, false),
192 HOWTO(RELOC_13
, 0, 2, 13, false, 0, complain_overflow_bitfield
,0,"13", false, 0,0x00001fff, false),
193 HOWTO(RELOC_LO10
, 0, 2, 10, false, 0, complain_overflow_dont
,0,"LO10", false, 0,0x000003ff, false),
194 HOWTO(RELOC_SFA_BASE
,0, 2, 32, false, 0, complain_overflow_bitfield
,0,"SFA_BASE", false, 0,0xffffffff, false),
195 HOWTO(RELOC_SFA_OFF13
,0,2, 32, false, 0, complain_overflow_bitfield
,0,"SFA_OFF13",false, 0,0xffffffff, false),
196 HOWTO(RELOC_BASE10
, 0, 2, 16, false, 0, complain_overflow_bitfield
,0,"BASE10", false, 0,0x0000ffff, false),
197 HOWTO(RELOC_BASE13
, 0, 2, 13, false, 0, complain_overflow_bitfield
,0,"BASE13", false, 0,0x00001fff, false),
198 HOWTO(RELOC_BASE22
, 0, 2, 0, false, 0, complain_overflow_bitfield
,0,"BASE22", false, 0,0x00000000, false),
199 HOWTO(RELOC_PC10
, 0, 2, 10, true, 0, complain_overflow_dont
,0,"PC10", false, 0,0x000003ff, true),
200 HOWTO(RELOC_PC22
, 10, 2, 22, true, 0, complain_overflow_signed
,0,"PC22", false, 0,0x003fffff, true),
201 HOWTO(RELOC_JMP_TBL
,2, 2, 30, true, 0, complain_overflow_signed
,0,"JMP_TBL", false, 0,0x3fffffff, false),
202 HOWTO(RELOC_SEGOFF16
,0, 2, 0, false, 0, complain_overflow_bitfield
,0,"SEGOFF16", false, 0,0x00000000, false),
203 HOWTO(RELOC_GLOB_DAT
,0, 2, 0, false, 0, complain_overflow_bitfield
,0,"GLOB_DAT", false, 0,0x00000000, false),
204 HOWTO(RELOC_JMP_SLOT
,0, 2, 0, false, 0, complain_overflow_bitfield
,0,"JMP_SLOT", false, 0,0x00000000, false),
205 HOWTO(RELOC_RELATIVE
,0, 2, 0, false, 0, complain_overflow_bitfield
,0,"RELATIVE", false, 0,0x00000000, false),
208 /* Convert standard reloc records to "arelent" format (incl byte swap). */
210 reloc_howto_type howto_table_std
[] = {
211 /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */
212 HOWTO( 0, 0, 0, 8, false, 0, complain_overflow_bitfield
,0,"8", true, 0x000000ff,0x000000ff, false),
213 HOWTO( 1, 0, 1, 16, false, 0, complain_overflow_bitfield
,0,"16", true, 0x0000ffff,0x0000ffff, false),
214 HOWTO( 2, 0, 2, 32, false, 0, complain_overflow_bitfield
,0,"32", true, 0xffffffff,0xffffffff, false),
215 HOWTO( 3, 0, 4, 64, false, 0, complain_overflow_bitfield
,0,"64", true, 0xdeaddead,0xdeaddead, false),
216 HOWTO( 4, 0, 0, 8, true, 0, complain_overflow_signed
, 0,"DISP8", true, 0x000000ff,0x000000ff, false),
217 HOWTO( 5, 0, 1, 16, true, 0, complain_overflow_signed
, 0,"DISP16", true, 0x0000ffff,0x0000ffff, false),
218 HOWTO( 6, 0, 2, 32, true, 0, complain_overflow_signed
, 0,"DISP32", true, 0xffffffff,0xffffffff, false),
219 HOWTO( 7, 0, 4, 64, true, 0, complain_overflow_signed
, 0,"DISP64", true, 0xfeedface,0xfeedface, false),
220 HOWTO( 8, 0, 2, 0, false, 0, complain_overflow_bitfield
,0,"GOT_REL", false, 0,0x00000000, false),
221 HOWTO( 9, 0, 1, 16, false, 0, complain_overflow_bitfield
,0,"BASE16", false,0xffffffff,0xffffffff, false),
222 HOWTO(10, 0, 2, 32, false, 0, complain_overflow_bitfield
,0,"BASE32", false,0xffffffff,0xffffffff, false),
228 HOWTO(16, 0, 2, 0, false, 0, complain_overflow_bitfield
,0,"JMP_TABLE", false, 0,0x00000000, false),
236 { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 },
237 HOWTO(32, 0, 2, 0, false, 0, complain_overflow_bitfield
,0,"RELATIVE", false, 0,0x00000000, false),
245 HOWTO(40, 0, 2, 0, false, 0, complain_overflow_bitfield
,0,"BASEREL", false, 0,0x00000000, false),
248 #define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0]))
251 NAME(aout
,reloc_type_lookup
) (abfd
,code
)
253 bfd_reloc_code_real_type code
;
255 #define EXT(i,j) case i: return &howto_table_ext[j]
256 #define STD(i,j) case i: return &howto_table_std[j]
257 int ext
= obj_reloc_entry_size (abfd
) == RELOC_EXT_SIZE
;
258 if (code
== BFD_RELOC_CTOR
)
259 switch (bfd_get_arch_info (abfd
)->bits_per_address
)
271 EXT (BFD_RELOC_32
, 2);
272 EXT (BFD_RELOC_HI22
, 8);
273 EXT (BFD_RELOC_LO10
, 11);
274 EXT (BFD_RELOC_32_PCREL_S2
, 6);
275 EXT (BFD_RELOC_SPARC_WDISP22
, 7);
276 EXT (BFD_RELOC_SPARC13
, 10);
277 EXT (BFD_RELOC_SPARC_GOT10
, 14);
278 EXT (BFD_RELOC_SPARC_BASE13
, 15);
279 EXT (BFD_RELOC_SPARC_GOT13
, 15);
280 EXT (BFD_RELOC_SPARC_GOT22
, 16);
281 EXT (BFD_RELOC_SPARC_PC10
, 17);
282 EXT (BFD_RELOC_SPARC_PC22
, 18);
283 EXT (BFD_RELOC_SPARC_WPLT30
, 19);
284 default: return (reloc_howto_type
*) NULL
;
290 STD (BFD_RELOC_16
, 1);
291 STD (BFD_RELOC_32
, 2);
292 STD (BFD_RELOC_8_PCREL
, 4);
293 STD (BFD_RELOC_16_PCREL
, 5);
294 STD (BFD_RELOC_32_PCREL
, 6);
295 STD (BFD_RELOC_16_BASEREL
, 9);
296 STD (BFD_RELOC_32_BASEREL
, 10);
297 default: return (reloc_howto_type
*) NULL
;
303 Internal entry points
306 @file{aoutx.h} exports several routines for accessing the
307 contents of an a.out file, which are gathered and exported in
308 turn by various format specific files (eg sunos.c).
314 aout_@var{size}_swap_exec_header_in
317 void aout_@var{size}_swap_exec_header_in,
319 struct external_exec *raw_bytes,
320 struct internal_exec *execp);
323 Swap the information in an executable header @var{raw_bytes} taken
324 from a raw byte stream memory image into the internal exec header
325 structure @var{execp}.
328 #ifndef NAME_swap_exec_header_in
330 NAME(aout
,swap_exec_header_in
) (abfd
, raw_bytes
, execp
)
332 struct external_exec
*raw_bytes
;
333 struct internal_exec
*execp
;
335 struct external_exec
*bytes
= (struct external_exec
*)raw_bytes
;
337 /* The internal_exec structure has some fields that are unused in this
338 configuration (IE for i960), so ensure that all such uninitialized
339 fields are zero'd out. There are places where two of these structs
340 are memcmp'd, and thus the contents do matter. */
341 memset ((PTR
) execp
, 0, sizeof (struct internal_exec
));
342 /* Now fill in fields in the execp, from the bytes in the raw data. */
343 execp
->a_info
= bfd_h_get_32 (abfd
, bytes
->e_info
);
344 execp
->a_text
= GET_WORD (abfd
, bytes
->e_text
);
345 execp
->a_data
= GET_WORD (abfd
, bytes
->e_data
);
346 execp
->a_bss
= GET_WORD (abfd
, bytes
->e_bss
);
347 execp
->a_syms
= GET_WORD (abfd
, bytes
->e_syms
);
348 execp
->a_entry
= GET_WORD (abfd
, bytes
->e_entry
);
349 execp
->a_trsize
= GET_WORD (abfd
, bytes
->e_trsize
);
350 execp
->a_drsize
= GET_WORD (abfd
, bytes
->e_drsize
);
352 #define NAME_swap_exec_header_in NAME(aout,swap_exec_header_in)
357 aout_@var{size}_swap_exec_header_out
360 void aout_@var{size}_swap_exec_header_out
362 struct internal_exec *execp,
363 struct external_exec *raw_bytes);
366 Swap the information in an internal exec header structure
367 @var{execp} into the buffer @var{raw_bytes} ready for writing to disk.
370 NAME(aout
,swap_exec_header_out
) (abfd
, execp
, raw_bytes
)
372 struct internal_exec
*execp
;
373 struct external_exec
*raw_bytes
;
375 struct external_exec
*bytes
= (struct external_exec
*)raw_bytes
;
377 /* Now fill in fields in the raw data, from the fields in the exec struct. */
378 bfd_h_put_32 (abfd
, execp
->a_info
, bytes
->e_info
);
379 PUT_WORD (abfd
, execp
->a_text
, bytes
->e_text
);
380 PUT_WORD (abfd
, execp
->a_data
, bytes
->e_data
);
381 PUT_WORD (abfd
, execp
->a_bss
, bytes
->e_bss
);
382 PUT_WORD (abfd
, execp
->a_syms
, bytes
->e_syms
);
383 PUT_WORD (abfd
, execp
->a_entry
, bytes
->e_entry
);
384 PUT_WORD (abfd
, execp
->a_trsize
, bytes
->e_trsize
);
385 PUT_WORD (abfd
, execp
->a_drsize
, bytes
->e_drsize
);
388 /* Make all the section for an a.out file. */
391 NAME(aout
,make_sections
) (abfd
)
394 if (obj_textsec (abfd
) == (asection
*) NULL
395 && bfd_make_section (abfd
, ".text") == (asection
*) NULL
)
397 if (obj_datasec (abfd
) == (asection
*) NULL
398 && bfd_make_section (abfd
, ".data") == (asection
*) NULL
)
400 if (obj_bsssec (abfd
) == (asection
*) NULL
401 && bfd_make_section (abfd
, ".bss") == (asection
*) NULL
)
408 aout_@var{size}_some_aout_object_p
411 const bfd_target *aout_@var{size}_some_aout_object_p
413 const bfd_target *(*callback_to_real_object_p)());
416 Some a.out variant thinks that the file open in @var{abfd}
417 checking is an a.out file. Do some more checking, and set up
418 for access if it really is. Call back to the calling
419 environment's "finish up" function just before returning, to
420 handle any last-minute setup.
424 NAME(aout
,some_aout_object_p
) (abfd
, execp
, callback_to_real_object_p
)
426 struct internal_exec
*execp
;
427 const bfd_target
*(*callback_to_real_object_p
) PARAMS ((bfd
*));
429 struct aout_data_struct
*rawptr
, *oldrawptr
;
430 const bfd_target
*result
;
432 rawptr
= (struct aout_data_struct
*) bfd_zalloc (abfd
, sizeof (struct aout_data_struct
));
436 oldrawptr
= abfd
->tdata
.aout_data
;
437 abfd
->tdata
.aout_data
= rawptr
;
439 /* Copy the contents of the old tdata struct.
440 In particular, we want the subformat, since for hpux it was set in
441 hp300hpux.c:swap_exec_header_in and will be used in
442 hp300hpux.c:callback. */
443 if (oldrawptr
!= NULL
)
444 *abfd
->tdata
.aout_data
= *oldrawptr
;
446 abfd
->tdata
.aout_data
->a
.hdr
= &rawptr
->e
;
447 *(abfd
->tdata
.aout_data
->a
.hdr
) = *execp
; /* Copy in the internal_exec struct */
448 execp
= abfd
->tdata
.aout_data
->a
.hdr
;
450 /* Set the file flags */
451 abfd
->flags
= NO_FLAGS
;
452 if (execp
->a_drsize
|| execp
->a_trsize
)
453 abfd
->flags
|= HAS_RELOC
;
454 /* Setting of EXEC_P has been deferred to the bottom of this function */
456 abfd
->flags
|= HAS_LINENO
| HAS_DEBUG
| HAS_SYMS
| HAS_LOCALS
;
457 if (N_DYNAMIC(*execp
))
458 abfd
->flags
|= DYNAMIC
;
460 if (N_MAGIC (*execp
) == ZMAGIC
)
462 abfd
->flags
|= D_PAGED
| WP_TEXT
;
463 adata (abfd
).magic
= z_magic
;
465 else if (N_MAGIC (*execp
) == QMAGIC
)
467 abfd
->flags
|= D_PAGED
| WP_TEXT
;
468 adata (abfd
).magic
= z_magic
;
469 adata (abfd
).subformat
= q_magic_format
;
471 else if (N_MAGIC (*execp
) == NMAGIC
)
473 abfd
->flags
|= WP_TEXT
;
474 adata (abfd
).magic
= n_magic
;
476 else if (N_MAGIC (*execp
) == OMAGIC
477 || N_MAGIC (*execp
) == BMAGIC
)
478 adata (abfd
).magic
= o_magic
;
481 /* Should have been checked with N_BADMAG before this routine
486 bfd_get_start_address (abfd
) = execp
->a_entry
;
488 obj_aout_symbols (abfd
) = (aout_symbol_type
*)NULL
;
489 bfd_get_symcount (abfd
) = execp
->a_syms
/ sizeof (struct external_nlist
);
491 /* The default relocation entry size is that of traditional V7 Unix. */
492 obj_reloc_entry_size (abfd
) = RELOC_STD_SIZE
;
494 /* The default symbol entry size is that of traditional Unix. */
495 obj_symbol_entry_size (abfd
) = EXTERNAL_NLIST_SIZE
;
498 bfd_init_window (&obj_aout_sym_window (abfd
));
499 bfd_init_window (&obj_aout_string_window (abfd
));
501 obj_aout_external_syms (abfd
) = NULL
;
502 obj_aout_external_strings (abfd
) = NULL
;
503 obj_aout_sym_hashes (abfd
) = NULL
;
505 if (! NAME(aout
,make_sections
) (abfd
))
508 obj_datasec (abfd
)->_raw_size
= execp
->a_data
;
509 obj_bsssec (abfd
)->_raw_size
= execp
->a_bss
;
511 obj_textsec (abfd
)->flags
=
512 (execp
->a_trsize
!= 0
513 ? (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_HAS_CONTENTS
| SEC_RELOC
)
514 : (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_HAS_CONTENTS
));
515 obj_datasec (abfd
)->flags
=
516 (execp
->a_drsize
!= 0
517 ? (SEC_ALLOC
| SEC_LOAD
| SEC_DATA
| SEC_HAS_CONTENTS
| SEC_RELOC
)
518 : (SEC_ALLOC
| SEC_LOAD
| SEC_DATA
| SEC_HAS_CONTENTS
));
519 obj_bsssec (abfd
)->flags
= SEC_ALLOC
;
521 #ifdef THIS_IS_ONLY_DOCUMENTATION
522 /* The common code can't fill in these things because they depend
523 on either the start address of the text segment, the rounding
524 up of virtual addresses between segments, or the starting file
525 position of the text segment -- all of which varies among different
526 versions of a.out. */
528 /* Call back to the format-dependent code to fill in the rest of the
529 fields and do any further cleanup. Things that should be filled
530 in by the callback: */
532 struct exec
*execp
= exec_hdr (abfd
);
534 obj_textsec (abfd
)->size
= N_TXTSIZE(*execp
);
535 obj_textsec (abfd
)->raw_size
= N_TXTSIZE(*execp
);
536 /* data and bss are already filled in since they're so standard */
538 /* The virtual memory addresses of the sections */
539 obj_textsec (abfd
)->vma
= N_TXTADDR(*execp
);
540 obj_datasec (abfd
)->vma
= N_DATADDR(*execp
);
541 obj_bsssec (abfd
)->vma
= N_BSSADDR(*execp
);
543 /* The file offsets of the sections */
544 obj_textsec (abfd
)->filepos
= N_TXTOFF(*execp
);
545 obj_datasec (abfd
)->filepos
= N_DATOFF(*execp
);
547 /* The file offsets of the relocation info */
548 obj_textsec (abfd
)->rel_filepos
= N_TRELOFF(*execp
);
549 obj_datasec (abfd
)->rel_filepos
= N_DRELOFF(*execp
);
551 /* The file offsets of the string table and symbol table. */
552 obj_str_filepos (abfd
) = N_STROFF (*execp
);
553 obj_sym_filepos (abfd
) = N_SYMOFF (*execp
);
555 /* Determine the architecture and machine type of the object file. */
556 switch (N_MACHTYPE (*exec_hdr (abfd
))) {
558 abfd
->obj_arch
= bfd_arch_obscure
;
562 adata(abfd
)->page_size
= TARGET_PAGE_SIZE
;
563 adata(abfd
)->segment_size
= SEGMENT_SIZE
;
564 adata(abfd
)->exec_bytes_size
= EXEC_BYTES_SIZE
;
568 /* The architecture is encoded in various ways in various a.out variants,
569 or is not encoded at all in some of them. The relocation size depends
570 on the architecture and the a.out variant. Finally, the return value
571 is the bfd_target vector in use. If an error occurs, return zero and
572 set bfd_error to the appropriate error code.
574 Formats such as b.out, which have additional fields in the a.out
575 header, should cope with them in this callback as well. */
576 #endif /* DOCUMENTATION */
578 result
= (*callback_to_real_object_p
)(abfd
);
580 /* Now that the segment addresses have been worked out, take a better
581 guess at whether the file is executable. If the entry point
582 is within the text segment, assume it is. (This makes files
583 executable even if their entry point address is 0, as long as
584 their text starts at zero.). */
585 if ((execp
->a_entry
>= obj_textsec(abfd
)->vma
) &&
586 (execp
->a_entry
< obj_textsec(abfd
)->vma
+ obj_textsec(abfd
)->_raw_size
))
587 abfd
->flags
|= EXEC_P
;
591 struct stat stat_buf
;
593 /* The original heuristic doesn't work in some important cases.
594 The a.out file has no information about the text start
595 address. For files (like kernels) linked to non-standard
596 addresses (ld -Ttext nnn) the entry point may not be between
597 the default text start (obj_textsec(abfd)->vma) and
598 (obj_textsec(abfd)->vma) + text size. This is not just a mach
599 issue. Many kernels are loaded at non standard addresses. */
601 && (fstat(fileno((FILE *) (abfd
->iostream
)), &stat_buf
) == 0)
602 && ((stat_buf
.st_mode
& 0111) != 0))
603 abfd
->flags
|= EXEC_P
;
605 #endif /* STAT_FOR_EXEC */
609 #if 0 /* These should be set correctly anyways. */
610 abfd
->sections
= obj_textsec (abfd
);
611 obj_textsec (abfd
)->next
= obj_datasec (abfd
);
612 obj_datasec (abfd
)->next
= obj_bsssec (abfd
);
618 abfd
->tdata
.aout_data
= oldrawptr
;
625 aout_@var{size}_mkobject
628 boolean aout_@var{size}_mkobject, (bfd *abfd);
631 Initialize BFD @var{abfd} for use with a.out files.
635 NAME(aout
,mkobject
) (abfd
)
638 struct aout_data_struct
*rawptr
;
640 bfd_set_error (bfd_error_system_call
);
642 /* Use an intermediate variable for clarity */
643 rawptr
= (struct aout_data_struct
*)bfd_zalloc (abfd
, sizeof (struct aout_data_struct
));
648 abfd
->tdata
.aout_data
= rawptr
;
649 exec_hdr (abfd
) = &(rawptr
->e
);
651 obj_textsec (abfd
) = (asection
*)NULL
;
652 obj_datasec (abfd
) = (asection
*)NULL
;
653 obj_bsssec (abfd
) = (asection
*)NULL
;
661 aout_@var{size}_machine_type
664 enum machine_type aout_@var{size}_machine_type
665 (enum bfd_architecture arch,
666 unsigned long machine));
669 Keep track of machine architecture and machine type for
670 a.out's. Return the <<machine_type>> for a particular
671 architecture and machine, or <<M_UNKNOWN>> if that exact architecture
672 and machine can't be represented in a.out format.
674 If the architecture is understood, machine type 0 (default)
675 is always understood.
679 NAME(aout
,machine_type
) (arch
, machine
, unknown
)
680 enum bfd_architecture arch
;
681 unsigned long machine
;
684 enum machine_type arch_flags
;
686 arch_flags
= M_UNKNOWN
;
692 || machine
== bfd_mach_sparc
693 || machine
== bfd_mach_sparc64
)
694 arch_flags
= M_SPARC
;
699 case 0: arch_flags
= M_68010
; break;
700 case 68000: arch_flags
= M_UNKNOWN
; *unknown
= false; break;
701 case 68010: arch_flags
= M_68010
; break;
702 case 68020: arch_flags
= M_68020
; break;
703 default: arch_flags
= M_UNKNOWN
; break;
708 if (machine
== 0) arch_flags
= M_386
;
712 if (machine
== 0) arch_flags
= M_29K
;
716 if (machine
== 0) arch_flags
= M_ARM
;
723 case 3000: arch_flags
= M_MIPS1
; break;
724 case 4000: /* mips3 */
726 case 8000: /* mips4 */
728 case 6000: arch_flags
= M_MIPS2
; break;
729 default: arch_flags
= M_UNKNOWN
; break;
735 case 0: arch_flags
= M_NS32532
; break;
736 case 32032: arch_flags
= M_NS32032
; break;
737 case 32532: arch_flags
= M_NS32532
; break;
738 default: arch_flags
= M_UNKNOWN
; break;
746 /* start-sanitize-rce */
750 /* end-sanitize-rce */
753 arch_flags
= M_UNKNOWN
;
756 if (arch_flags
!= M_UNKNOWN
)
765 aout_@var{size}_set_arch_mach
768 boolean aout_@var{size}_set_arch_mach,
770 enum bfd_architecture arch,
771 unsigned long machine));
774 Set the architecture and the machine of the BFD @var{abfd} to the
775 values @var{arch} and @var{machine}. Verify that @var{abfd}'s format
776 can support the architecture required.
780 NAME(aout
,set_arch_mach
) (abfd
, arch
, machine
)
782 enum bfd_architecture arch
;
783 unsigned long machine
;
785 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
788 if (arch
!= bfd_arch_unknown
)
792 NAME(aout
,machine_type
) (arch
, machine
, &unknown
);
797 /* Determine the size of a relocation entry */
802 obj_reloc_entry_size (abfd
) = RELOC_EXT_SIZE
;
805 obj_reloc_entry_size (abfd
) = RELOC_STD_SIZE
;
809 return (*aout_backend_info(abfd
)->set_sizes
) (abfd
);
813 adjust_o_magic (abfd
, execp
)
815 struct internal_exec
*execp
;
817 file_ptr pos
= adata (abfd
).exec_bytes_size
;
822 obj_textsec(abfd
)->filepos
= pos
;
823 if (!obj_textsec(abfd
)->user_set_vma
)
824 obj_textsec(abfd
)->vma
= vma
;
826 vma
= obj_textsec(abfd
)->vma
;
828 pos
+= obj_textsec(abfd
)->_raw_size
;
829 vma
+= obj_textsec(abfd
)->_raw_size
;
832 if (!obj_datasec(abfd
)->user_set_vma
)
834 #if 0 /* ?? Does alignment in the file image really matter? */
835 pad
= align_power (vma
, obj_datasec(abfd
)->alignment_power
) - vma
;
837 obj_textsec(abfd
)->_raw_size
+= pad
;
840 obj_datasec(abfd
)->vma
= vma
;
843 vma
= obj_datasec(abfd
)->vma
;
844 obj_datasec(abfd
)->filepos
= pos
;
845 pos
+= obj_datasec(abfd
)->_raw_size
;
846 vma
+= obj_datasec(abfd
)->_raw_size
;
849 if (!obj_bsssec(abfd
)->user_set_vma
)
852 pad
= align_power (vma
, obj_bsssec(abfd
)->alignment_power
) - vma
;
854 obj_datasec(abfd
)->_raw_size
+= pad
;
857 obj_bsssec(abfd
)->vma
= vma
;
861 /* The VMA of the .bss section is set by the the VMA of the
862 .data section plus the size of the .data section. We may
863 need to add padding bytes to make this true. */
864 pad
= obj_bsssec (abfd
)->vma
- vma
;
867 obj_datasec (abfd
)->_raw_size
+= pad
;
871 obj_bsssec(abfd
)->filepos
= pos
;
873 /* Fix up the exec header. */
874 execp
->a_text
= obj_textsec(abfd
)->_raw_size
;
875 execp
->a_data
= obj_datasec(abfd
)->_raw_size
;
876 execp
->a_bss
= obj_bsssec(abfd
)->_raw_size
;
877 N_SET_MAGIC (*execp
, OMAGIC
);
881 adjust_z_magic (abfd
, execp
)
883 struct internal_exec
*execp
;
885 bfd_size_type data_pad
, text_pad
;
887 CONST
struct aout_backend_data
*abdp
;
888 int ztih
; /* Nonzero if text includes exec header. */
890 abdp
= aout_backend_info (abfd
);
894 && (abdp
->text_includes_header
895 || obj_aout_subformat (abfd
) == q_magic_format
));
896 obj_textsec(abfd
)->filepos
= (ztih
897 ? adata(abfd
).exec_bytes_size
898 : adata(abfd
).zmagic_disk_block_size
);
899 if (! obj_textsec(abfd
)->user_set_vma
)
901 /* ?? Do we really need to check for relocs here? */
902 obj_textsec(abfd
)->vma
= ((abfd
->flags
& HAS_RELOC
)
905 ? (abdp
->default_text_vma
906 + adata(abfd
).exec_bytes_size
)
907 : abdp
->default_text_vma
));
912 /* The .text section is being loaded at an unusual address. We
913 may need to pad it such that the .data section starts at a page
916 text_pad
= ((obj_textsec (abfd
)->filepos
- obj_textsec (abfd
)->vma
)
917 & (adata (abfd
).page_size
- 1));
919 text_pad
= ((- obj_textsec (abfd
)->vma
)
920 & (adata (abfd
).page_size
- 1));
923 /* Find start of data. */
926 text_end
= obj_textsec (abfd
)->filepos
+ obj_textsec (abfd
)->_raw_size
;
927 text_pad
+= BFD_ALIGN (text_end
, adata (abfd
).page_size
) - text_end
;
931 /* Note that if page_size == zmagic_disk_block_size, then
932 filepos == page_size, and this case is the same as the ztih
934 text_end
= obj_textsec (abfd
)->_raw_size
;
935 text_pad
+= BFD_ALIGN (text_end
, adata (abfd
).page_size
) - text_end
;
936 text_end
+= obj_textsec (abfd
)->filepos
;
938 obj_textsec(abfd
)->_raw_size
+= text_pad
;
939 text_end
+= text_pad
;
942 if (!obj_datasec(abfd
)->user_set_vma
)
945 vma
= obj_textsec(abfd
)->vma
+ obj_textsec(abfd
)->_raw_size
;
946 obj_datasec(abfd
)->vma
= BFD_ALIGN (vma
, adata(abfd
).segment_size
);
948 if (abdp
&& abdp
->zmagic_mapped_contiguous
)
950 text_pad
= (obj_datasec(abfd
)->vma
951 - obj_textsec(abfd
)->vma
952 - obj_textsec(abfd
)->_raw_size
);
953 obj_textsec(abfd
)->_raw_size
+= text_pad
;
955 obj_datasec(abfd
)->filepos
= (obj_textsec(abfd
)->filepos
956 + obj_textsec(abfd
)->_raw_size
);
958 /* Fix up exec header while we're at it. */
959 execp
->a_text
= obj_textsec(abfd
)->_raw_size
;
960 if (ztih
&& (!abdp
|| (abdp
&& !abdp
->exec_header_not_counted
)))
961 execp
->a_text
+= adata(abfd
).exec_bytes_size
;
962 if (obj_aout_subformat (abfd
) == q_magic_format
)
963 N_SET_MAGIC (*execp
, QMAGIC
);
965 N_SET_MAGIC (*execp
, ZMAGIC
);
967 /* Spec says data section should be rounded up to page boundary. */
968 obj_datasec(abfd
)->_raw_size
969 = align_power (obj_datasec(abfd
)->_raw_size
,
970 obj_bsssec(abfd
)->alignment_power
);
971 execp
->a_data
= BFD_ALIGN (obj_datasec(abfd
)->_raw_size
,
972 adata(abfd
).page_size
);
973 data_pad
= execp
->a_data
- obj_datasec(abfd
)->_raw_size
;
976 if (!obj_bsssec(abfd
)->user_set_vma
)
977 obj_bsssec(abfd
)->vma
= (obj_datasec(abfd
)->vma
978 + obj_datasec(abfd
)->_raw_size
);
979 /* If the BSS immediately follows the data section and extra space
980 in the page is left after the data section, fudge data
981 in the header so that the bss section looks smaller by that
982 amount. We'll start the bss section there, and lie to the OS.
983 (Note that a linker script, as well as the above assignment,
984 could have explicitly set the BSS vma to immediately follow
985 the data section.) */
986 if (align_power (obj_bsssec(abfd
)->vma
, obj_bsssec(abfd
)->alignment_power
)
987 == obj_datasec(abfd
)->vma
+ obj_datasec(abfd
)->_raw_size
)
988 execp
->a_bss
= (data_pad
> obj_bsssec(abfd
)->_raw_size
) ? 0 :
989 obj_bsssec(abfd
)->_raw_size
- data_pad
;
991 execp
->a_bss
= obj_bsssec(abfd
)->_raw_size
;
995 adjust_n_magic (abfd
, execp
)
997 struct internal_exec
*execp
;
999 file_ptr pos
= adata(abfd
).exec_bytes_size
;
1004 obj_textsec(abfd
)->filepos
= pos
;
1005 if (!obj_textsec(abfd
)->user_set_vma
)
1006 obj_textsec(abfd
)->vma
= vma
;
1008 vma
= obj_textsec(abfd
)->vma
;
1009 pos
+= obj_textsec(abfd
)->_raw_size
;
1010 vma
+= obj_textsec(abfd
)->_raw_size
;
1013 obj_datasec(abfd
)->filepos
= pos
;
1014 if (!obj_datasec(abfd
)->user_set_vma
)
1015 obj_datasec(abfd
)->vma
= BFD_ALIGN (vma
, adata(abfd
).segment_size
);
1016 vma
= obj_datasec(abfd
)->vma
;
1018 /* Since BSS follows data immediately, see if it needs alignment. */
1019 vma
+= obj_datasec(abfd
)->_raw_size
;
1020 pad
= align_power (vma
, obj_bsssec(abfd
)->alignment_power
) - vma
;
1021 obj_datasec(abfd
)->_raw_size
+= pad
;
1022 pos
+= obj_datasec(abfd
)->_raw_size
;
1025 if (!obj_bsssec(abfd
)->user_set_vma
)
1026 obj_bsssec(abfd
)->vma
= vma
;
1028 vma
= obj_bsssec(abfd
)->vma
;
1030 /* Fix up exec header. */
1031 execp
->a_text
= obj_textsec(abfd
)->_raw_size
;
1032 execp
->a_data
= obj_datasec(abfd
)->_raw_size
;
1033 execp
->a_bss
= obj_bsssec(abfd
)->_raw_size
;
1034 N_SET_MAGIC (*execp
, NMAGIC
);
1038 NAME(aout
,adjust_sizes_and_vmas
) (abfd
, text_size
, text_end
)
1040 bfd_size_type
*text_size
;
1043 struct internal_exec
*execp
= exec_hdr (abfd
);
1045 if (! NAME(aout
,make_sections
) (abfd
))
1048 if (adata(abfd
).magic
!= undecided_magic
)
1051 obj_textsec(abfd
)->_raw_size
=
1052 align_power(obj_textsec(abfd
)->_raw_size
,
1053 obj_textsec(abfd
)->alignment_power
);
1055 *text_size
= obj_textsec (abfd
)->_raw_size
;
1056 /* Rule (heuristic) for when to pad to a new page. Note that there
1057 are (at least) two ways demand-paged (ZMAGIC) files have been
1058 handled. Most Berkeley-based systems start the text segment at
1059 (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text
1060 segment right after the exec header; the latter is counted in the
1061 text segment size, and is paged in by the kernel with the rest of
1064 /* This perhaps isn't the right way to do this, but made it simpler for me
1065 to understand enough to implement it. Better would probably be to go
1066 right from BFD flags to alignment/positioning characteristics. But the
1067 old code was sloppy enough about handling the flags, and had enough
1068 other magic, that it was a little hard for me to understand. I think
1069 I understand it better now, but I haven't time to do the cleanup this
1072 if (abfd
->flags
& D_PAGED
)
1073 /* Whether or not WP_TEXT is set -- let D_PAGED override. */
1074 adata(abfd
).magic
= z_magic
;
1075 else if (abfd
->flags
& WP_TEXT
)
1076 adata(abfd
).magic
= n_magic
;
1078 adata(abfd
).magic
= o_magic
;
1080 #ifdef BFD_AOUT_DEBUG /* requires gcc2 */
1082 fprintf (stderr
, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n",
1084 switch (adata(abfd
).magic
) {
1085 case n_magic
: str
= "NMAGIC"; break;
1086 case o_magic
: str
= "OMAGIC"; break;
1087 case z_magic
: str
= "ZMAGIC"; break;
1092 obj_textsec(abfd
)->vma
, obj_textsec(abfd
)->_raw_size
,
1093 obj_textsec(abfd
)->alignment_power
,
1094 obj_datasec(abfd
)->vma
, obj_datasec(abfd
)->_raw_size
,
1095 obj_datasec(abfd
)->alignment_power
,
1096 obj_bsssec(abfd
)->vma
, obj_bsssec(abfd
)->_raw_size
,
1097 obj_bsssec(abfd
)->alignment_power
);
1101 switch (adata(abfd
).magic
)
1104 adjust_o_magic (abfd
, execp
);
1107 adjust_z_magic (abfd
, execp
);
1110 adjust_n_magic (abfd
, execp
);
1116 #ifdef BFD_AOUT_DEBUG
1117 fprintf (stderr
, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n",
1118 obj_textsec(abfd
)->vma
, obj_textsec(abfd
)->_raw_size
,
1119 obj_textsec(abfd
)->filepos
,
1120 obj_datasec(abfd
)->vma
, obj_datasec(abfd
)->_raw_size
,
1121 obj_datasec(abfd
)->filepos
,
1122 obj_bsssec(abfd
)->vma
, obj_bsssec(abfd
)->_raw_size
);
1130 aout_@var{size}_new_section_hook
1133 boolean aout_@var{size}_new_section_hook,
1135 asection *newsect));
1138 Called by the BFD in response to a @code{bfd_make_section}
1142 NAME(aout
,new_section_hook
) (abfd
, newsect
)
1146 /* align to double at least */
1147 newsect
->alignment_power
= bfd_get_arch_info(abfd
)->section_align_power
;
1150 if (bfd_get_format (abfd
) == bfd_object
)
1152 if (obj_textsec(abfd
) == NULL
&& !strcmp(newsect
->name
, ".text")) {
1153 obj_textsec(abfd
)= newsect
;
1154 newsect
->target_index
= N_TEXT
;
1158 if (obj_datasec(abfd
) == NULL
&& !strcmp(newsect
->name
, ".data")) {
1159 obj_datasec(abfd
) = newsect
;
1160 newsect
->target_index
= N_DATA
;
1164 if (obj_bsssec(abfd
) == NULL
&& !strcmp(newsect
->name
, ".bss")) {
1165 obj_bsssec(abfd
) = newsect
;
1166 newsect
->target_index
= N_BSS
;
1172 /* We allow more than three sections internally */
1177 NAME(aout
,set_section_contents
) (abfd
, section
, location
, offset
, count
)
1182 bfd_size_type count
;
1185 bfd_size_type text_size
;
1187 if (! abfd
->output_has_begun
)
1189 if (! NAME(aout
,adjust_sizes_and_vmas
) (abfd
, &text_size
, &text_end
))
1193 if (section
== obj_bsssec (abfd
))
1195 bfd_set_error (bfd_error_no_contents
);
1199 if (section
!= obj_textsec (abfd
)
1200 && section
!= obj_datasec (abfd
))
1202 (*_bfd_error_handler
)
1203 ("%s: can not represent section `%s' in a.out object file format",
1204 bfd_get_filename (abfd
), bfd_get_section_name (abfd
, section
));
1205 bfd_set_error (bfd_error_nonrepresentable_section
);
1211 if (bfd_seek (abfd
, section
->filepos
+ offset
, SEEK_SET
) != 0
1212 || bfd_write (location
, 1, count
, abfd
) != count
)
1219 /* Read the external symbols from an a.out file. */
1222 aout_get_external_symbols (abfd
)
1225 if (obj_aout_external_syms (abfd
) == (struct external_nlist
*) NULL
)
1227 bfd_size_type count
;
1228 struct external_nlist
*syms
;
1230 count
= exec_hdr (abfd
)->a_syms
/ EXTERNAL_NLIST_SIZE
;
1233 if (bfd_get_file_window (abfd
,
1234 obj_sym_filepos (abfd
), exec_hdr (abfd
)->a_syms
,
1235 &obj_aout_sym_window (abfd
), true) == false)
1237 syms
= (struct external_nlist
*) obj_aout_sym_window (abfd
).data
;
1239 /* We allocate using malloc to make the values easy to free
1240 later on. If we put them on the obstack it might not be
1241 possible to free them. */
1242 syms
= ((struct external_nlist
*)
1243 malloc ((size_t) count
* EXTERNAL_NLIST_SIZE
));
1244 if (syms
== (struct external_nlist
*) NULL
&& count
!= 0)
1246 bfd_set_error (bfd_error_no_memory
);
1250 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0
1251 || (bfd_read (syms
, 1, exec_hdr (abfd
)->a_syms
, abfd
)
1252 != exec_hdr (abfd
)->a_syms
))
1259 obj_aout_external_syms (abfd
) = syms
;
1260 obj_aout_external_sym_count (abfd
) = count
;
1263 if (obj_aout_external_strings (abfd
) == NULL
1264 && exec_hdr (abfd
)->a_syms
!= 0)
1266 unsigned char string_chars
[BYTES_IN_WORD
];
1267 bfd_size_type stringsize
;
1270 /* Get the size of the strings. */
1271 if (bfd_seek (abfd
, obj_str_filepos (abfd
), SEEK_SET
) != 0
1272 || (bfd_read ((PTR
) string_chars
, BYTES_IN_WORD
, 1, abfd
)
1275 stringsize
= GET_WORD (abfd
, string_chars
);
1278 if (bfd_get_file_window (abfd
, obj_str_filepos (abfd
), stringsize
,
1279 &obj_aout_string_window (abfd
), true) == false)
1281 strings
= (char *) obj_aout_string_window (abfd
).data
;
1283 strings
= (char *) malloc ((size_t) stringsize
+ 1);
1284 if (strings
== NULL
)
1286 bfd_set_error (bfd_error_no_memory
);
1290 /* Skip space for the string count in the buffer for convenience
1291 when using indexes. */
1292 if (bfd_read (strings
+ BYTES_IN_WORD
, 1, stringsize
- BYTES_IN_WORD
,
1294 != stringsize
- BYTES_IN_WORD
)
1301 /* Ensure that a zero index yields an empty string. */
1304 strings
[stringsize
- 1] = 0;
1306 obj_aout_external_strings (abfd
) = strings
;
1307 obj_aout_external_string_size (abfd
) = stringsize
;
1313 /* Translate an a.out symbol into a BFD symbol. The desc, other, type
1314 and symbol->value fields of CACHE_PTR will be set from the a.out
1315 nlist structure. This function is responsible for setting
1316 symbol->flags and symbol->section, and adjusting symbol->value. */
1319 translate_from_native_sym_flags (abfd
, cache_ptr
)
1321 aout_symbol_type
*cache_ptr
;
1325 if ((cache_ptr
->type
& N_STAB
) != 0
1326 || cache_ptr
->type
== N_FN
)
1330 /* This is a debugging symbol. */
1332 cache_ptr
->symbol
.flags
= BSF_DEBUGGING
;
1334 /* Work out the symbol section. */
1335 switch (cache_ptr
->type
& N_TYPE
)
1339 sec
= obj_textsec (abfd
);
1342 sec
= obj_datasec (abfd
);
1345 sec
= obj_bsssec (abfd
);
1349 sec
= bfd_abs_section_ptr
;
1353 cache_ptr
->symbol
.section
= sec
;
1354 cache_ptr
->symbol
.value
-= sec
->vma
;
1359 /* Get the default visibility. This does not apply to all types, so
1360 we just hold it in a local variable to use if wanted. */
1361 if ((cache_ptr
->type
& N_EXT
) == 0)
1362 visible
= BSF_LOCAL
;
1364 visible
= BSF_GLOBAL
;
1366 switch (cache_ptr
->type
)
1369 case N_ABS
: case N_ABS
| N_EXT
:
1370 cache_ptr
->symbol
.section
= bfd_abs_section_ptr
;
1371 cache_ptr
->symbol
.flags
= visible
;
1374 case N_UNDF
| N_EXT
:
1375 if (cache_ptr
->symbol
.value
!= 0)
1377 /* This is a common symbol. */
1378 cache_ptr
->symbol
.flags
= BSF_GLOBAL
;
1379 cache_ptr
->symbol
.section
= bfd_com_section_ptr
;
1383 cache_ptr
->symbol
.flags
= 0;
1384 cache_ptr
->symbol
.section
= bfd_und_section_ptr
;
1388 case N_TEXT
: case N_TEXT
| N_EXT
:
1389 cache_ptr
->symbol
.section
= obj_textsec (abfd
);
1390 cache_ptr
->symbol
.value
-= cache_ptr
->symbol
.section
->vma
;
1391 cache_ptr
->symbol
.flags
= visible
;
1394 /* N_SETV symbols used to represent set vectors placed in the
1395 data section. They are no longer generated. Theoretically,
1396 it was possible to extract the entries and combine them with
1397 new ones, although I don't know if that was ever actually
1398 done. Unless that feature is restored, treat them as data
1400 case N_SETV
: case N_SETV
| N_EXT
:
1401 case N_DATA
: case N_DATA
| N_EXT
:
1402 cache_ptr
->symbol
.section
= obj_datasec (abfd
);
1403 cache_ptr
->symbol
.value
-= cache_ptr
->symbol
.section
->vma
;
1404 cache_ptr
->symbol
.flags
= visible
;
1407 case N_BSS
: case N_BSS
| N_EXT
:
1408 cache_ptr
->symbol
.section
= obj_bsssec (abfd
);
1409 cache_ptr
->symbol
.value
-= cache_ptr
->symbol
.section
->vma
;
1410 cache_ptr
->symbol
.flags
= visible
;
1413 case N_SETA
: case N_SETA
| N_EXT
:
1414 case N_SETT
: case N_SETT
| N_EXT
:
1415 case N_SETD
: case N_SETD
| N_EXT
:
1416 case N_SETB
: case N_SETB
| N_EXT
:
1419 arelent_chain
*reloc
;
1420 asection
*into_section
;
1422 /* This is a set symbol. The name of the symbol is the name
1423 of the set (e.g., __CTOR_LIST__). The value of the symbol
1424 is the value to add to the set. We create a section with
1425 the same name as the symbol, and add a reloc to insert the
1426 appropriate value into the section.
1428 This action is actually obsolete; it used to make the
1429 linker do the right thing, but the linker no longer uses
1432 section
= bfd_get_section_by_name (abfd
, cache_ptr
->symbol
.name
);
1433 if (section
== NULL
)
1437 copy
= bfd_alloc (abfd
, strlen (cache_ptr
->symbol
.name
) + 1);
1441 strcpy (copy
, cache_ptr
->symbol
.name
);
1442 section
= bfd_make_section (abfd
, copy
);
1443 if (section
== NULL
)
1447 reloc
= (arelent_chain
*) bfd_alloc (abfd
, sizeof (arelent_chain
));
1451 /* Build a relocation entry for the constructor. */
1452 switch (cache_ptr
->type
& N_TYPE
)
1455 into_section
= bfd_abs_section_ptr
;
1456 cache_ptr
->type
= N_ABS
;
1459 into_section
= obj_textsec (abfd
);
1460 cache_ptr
->type
= N_TEXT
;
1463 into_section
= obj_datasec (abfd
);
1464 cache_ptr
->type
= N_DATA
;
1467 into_section
= obj_bsssec (abfd
);
1468 cache_ptr
->type
= N_BSS
;
1472 /* Build a relocation pointing into the constructor section
1473 pointing at the symbol in the set vector specified. */
1474 reloc
->relent
.addend
= cache_ptr
->symbol
.value
;
1475 cache_ptr
->symbol
.section
= into_section
;
1476 reloc
->relent
.sym_ptr_ptr
= into_section
->symbol_ptr_ptr
;
1478 /* We modify the symbol to belong to a section depending upon
1479 the name of the symbol, and add to the size of the section
1480 to contain a pointer to the symbol. Build a reloc entry to
1481 relocate to this symbol attached to this section. */
1482 section
->flags
= SEC_CONSTRUCTOR
| SEC_RELOC
;
1484 section
->reloc_count
++;
1485 section
->alignment_power
= 2;
1487 reloc
->next
= section
->constructor_chain
;
1488 section
->constructor_chain
= reloc
;
1489 reloc
->relent
.address
= section
->_raw_size
;
1490 section
->_raw_size
+= BYTES_IN_WORD
;
1492 reloc
->relent
.howto
= CTOR_TABLE_RELOC_HOWTO(abfd
);
1494 cache_ptr
->symbol
.flags
|= BSF_CONSTRUCTOR
;
1499 /* This symbol is the text of a warning message. The next
1500 symbol is the symbol to associate the warning with. If a
1501 reference is made to that symbol, a warning is issued. */
1502 cache_ptr
->symbol
.flags
= BSF_DEBUGGING
| BSF_WARNING
;
1503 cache_ptr
->symbol
.section
= bfd_abs_section_ptr
;
1506 case N_INDR
: case N_INDR
| N_EXT
:
1507 /* An indirect symbol. This consists of two symbols in a row.
1508 The first symbol is the name of the indirection. The second
1509 symbol is the name of the target. A reference to the first
1510 symbol becomes a reference to the second. */
1511 cache_ptr
->symbol
.flags
= BSF_DEBUGGING
| BSF_INDIRECT
| visible
;
1512 cache_ptr
->symbol
.section
= bfd_ind_section_ptr
;
1516 cache_ptr
->symbol
.section
= bfd_und_section_ptr
;
1517 cache_ptr
->symbol
.flags
= BSF_WEAK
;
1521 cache_ptr
->symbol
.section
= bfd_abs_section_ptr
;
1522 cache_ptr
->symbol
.flags
= BSF_WEAK
;
1526 cache_ptr
->symbol
.section
= obj_textsec (abfd
);
1527 cache_ptr
->symbol
.value
-= cache_ptr
->symbol
.section
->vma
;
1528 cache_ptr
->symbol
.flags
= BSF_WEAK
;
1532 cache_ptr
->symbol
.section
= obj_datasec (abfd
);
1533 cache_ptr
->symbol
.value
-= cache_ptr
->symbol
.section
->vma
;
1534 cache_ptr
->symbol
.flags
= BSF_WEAK
;
1538 cache_ptr
->symbol
.section
= obj_bsssec (abfd
);
1539 cache_ptr
->symbol
.value
-= cache_ptr
->symbol
.section
->vma
;
1540 cache_ptr
->symbol
.flags
= BSF_WEAK
;
1547 /* Set the fields of SYM_POINTER according to CACHE_PTR. */
1550 translate_to_native_sym_flags (abfd
, cache_ptr
, sym_pointer
)
1553 struct external_nlist
*sym_pointer
;
1555 bfd_vma value
= cache_ptr
->value
;
1559 /* Mask out any existing type bits in case copying from one section
1561 sym_pointer
->e_type
[0] &= ~N_TYPE
;
1563 sec
= bfd_get_section (cache_ptr
);
1568 /* This case occurs, e.g., for the *DEBUG* section of a COFF
1570 (*_bfd_error_handler
)
1571 ("%s: can not represent section `%s' in a.out object file format",
1572 bfd_get_filename (abfd
), bfd_get_section_name (abfd
, sec
));
1573 bfd_set_error (bfd_error_nonrepresentable_section
);
1577 if (sec
->output_section
!= NULL
)
1579 off
= sec
->output_offset
;
1580 sec
= sec
->output_section
;
1583 if (bfd_is_abs_section (sec
))
1584 sym_pointer
->e_type
[0] |= N_ABS
;
1585 else if (sec
== obj_textsec (abfd
))
1586 sym_pointer
->e_type
[0] |= N_TEXT
;
1587 else if (sec
== obj_datasec (abfd
))
1588 sym_pointer
->e_type
[0] |= N_DATA
;
1589 else if (sec
== obj_bsssec (abfd
))
1590 sym_pointer
->e_type
[0] |= N_BSS
;
1591 else if (bfd_is_und_section (sec
))
1592 sym_pointer
->e_type
[0] = N_UNDF
| N_EXT
;
1593 else if (bfd_is_ind_section (sec
))
1594 sym_pointer
->e_type
[0] = N_INDR
;
1595 else if (bfd_is_com_section (sec
))
1596 sym_pointer
->e_type
[0] = N_UNDF
| N_EXT
;
1599 (*_bfd_error_handler
)
1600 ("%s: can not represent section `%s' in a.out object file format",
1601 bfd_get_filename (abfd
), bfd_get_section_name (abfd
, sec
));
1602 bfd_set_error (bfd_error_nonrepresentable_section
);
1606 /* Turn the symbol from section relative to absolute again */
1607 value
+= sec
->vma
+ off
;
1609 if ((cache_ptr
->flags
& BSF_WARNING
) != 0)
1610 sym_pointer
->e_type
[0] = N_WARNING
;
1612 if ((cache_ptr
->flags
& BSF_DEBUGGING
) != 0)
1613 sym_pointer
->e_type
[0] = ((aout_symbol_type
*) cache_ptr
)->type
;
1614 else if ((cache_ptr
->flags
& BSF_GLOBAL
) != 0)
1615 sym_pointer
->e_type
[0] |= N_EXT
;
1617 if ((cache_ptr
->flags
& BSF_CONSTRUCTOR
) != 0)
1619 int type
= ((aout_symbol_type
*) cache_ptr
)->type
;
1622 case N_ABS
: type
= N_SETA
; break;
1623 case N_TEXT
: type
= N_SETT
; break;
1624 case N_DATA
: type
= N_SETD
; break;
1625 case N_BSS
: type
= N_SETB
; break;
1627 sym_pointer
->e_type
[0] = type
;
1630 if ((cache_ptr
->flags
& BSF_WEAK
) != 0)
1634 switch (sym_pointer
->e_type
[0] & N_TYPE
)
1637 case N_ABS
: type
= N_WEAKA
; break;
1638 case N_TEXT
: type
= N_WEAKT
; break;
1639 case N_DATA
: type
= N_WEAKD
; break;
1640 case N_BSS
: type
= N_WEAKB
; break;
1641 case N_UNDF
: type
= N_WEAKU
; break;
1643 sym_pointer
->e_type
[0] = type
;
1646 PUT_WORD(abfd
, value
, sym_pointer
->e_value
);
1651 /* Native-level interface to symbols. */
1654 NAME(aout
,make_empty_symbol
) (abfd
)
1657 aout_symbol_type
*new =
1658 (aout_symbol_type
*)bfd_zalloc (abfd
, sizeof (aout_symbol_type
));
1661 new->symbol
.the_bfd
= abfd
;
1663 return &new->symbol
;
1666 /* Translate a set of internal symbols into external symbols. */
1669 NAME(aout
,translate_symbol_table
) (abfd
, in
, ext
, count
, str
, strsize
, dynamic
)
1671 aout_symbol_type
*in
;
1672 struct external_nlist
*ext
;
1673 bfd_size_type count
;
1675 bfd_size_type strsize
;
1678 struct external_nlist
*ext_end
;
1680 ext_end
= ext
+ count
;
1681 for (; ext
< ext_end
; ext
++, in
++)
1685 x
= GET_WORD (abfd
, ext
->e_strx
);
1686 in
->symbol
.the_bfd
= abfd
;
1688 /* For the normal symbols, the zero index points at the number
1689 of bytes in the string table but is to be interpreted as the
1690 null string. For the dynamic symbols, the number of bytes in
1691 the string table is stored in the __DYNAMIC structure and the
1692 zero index points at an actual string. */
1693 if (x
== 0 && ! dynamic
)
1694 in
->symbol
.name
= "";
1695 else if (x
< strsize
)
1696 in
->symbol
.name
= str
+ x
;
1700 in
->symbol
.value
= GET_SWORD (abfd
, ext
->e_value
);
1701 in
->desc
= bfd_h_get_16 (abfd
, ext
->e_desc
);
1702 in
->other
= bfd_h_get_8 (abfd
, ext
->e_other
);
1703 in
->type
= bfd_h_get_8 (abfd
, ext
->e_type
);
1704 in
->symbol
.udata
.p
= NULL
;
1706 if (! translate_from_native_sym_flags (abfd
, in
))
1710 in
->symbol
.flags
|= BSF_DYNAMIC
;
1716 /* We read the symbols into a buffer, which is discarded when this
1717 function exits. We read the strings into a buffer large enough to
1718 hold them all plus all the cached symbol entries. */
1721 NAME(aout
,slurp_symbol_table
) (abfd
)
1724 struct external_nlist
*old_external_syms
;
1725 aout_symbol_type
*cached
;
1728 /* If there's no work to be done, don't do any */
1729 if (obj_aout_symbols (abfd
) != (aout_symbol_type
*) NULL
)
1732 old_external_syms
= obj_aout_external_syms (abfd
);
1734 if (! aout_get_external_symbols (abfd
))
1737 cached_size
= (obj_aout_external_sym_count (abfd
)
1738 * sizeof (aout_symbol_type
));
1739 cached
= (aout_symbol_type
*) malloc (cached_size
);
1740 if (cached
== NULL
&& cached_size
!= 0)
1742 bfd_set_error (bfd_error_no_memory
);
1745 if (cached_size
!= 0)
1746 memset (cached
, 0, cached_size
);
1748 /* Convert from external symbol information to internal. */
1749 if (! (NAME(aout
,translate_symbol_table
)
1751 obj_aout_external_syms (abfd
),
1752 obj_aout_external_sym_count (abfd
),
1753 obj_aout_external_strings (abfd
),
1754 obj_aout_external_string_size (abfd
),
1761 bfd_get_symcount (abfd
) = obj_aout_external_sym_count (abfd
);
1763 obj_aout_symbols (abfd
) = cached
;
1765 /* It is very likely that anybody who calls this function will not
1766 want the external symbol information, so if it was allocated
1767 because of our call to aout_get_external_symbols, we free it up
1768 right away to save space. */
1769 if (old_external_syms
== (struct external_nlist
*) NULL
1770 && obj_aout_external_syms (abfd
) != (struct external_nlist
*) NULL
)
1773 bfd_free_window (&obj_aout_sym_window (abfd
));
1775 free (obj_aout_external_syms (abfd
));
1777 obj_aout_external_syms (abfd
) = NULL
;
1783 /* We use a hash table when writing out symbols so that we only write
1784 out a particular string once. This helps particularly when the
1785 linker writes out stabs debugging entries, because each different
1786 contributing object file tends to have many duplicate stabs
1789 This hash table code breaks dbx on SunOS 4.1.3, so we don't do it
1790 if BFD_TRADITIONAL_FORMAT is set. */
1792 static bfd_size_type add_to_stringtab
1793 PARAMS ((bfd
*, struct bfd_strtab_hash
*, const char *, boolean
));
1794 static boolean emit_stringtab
PARAMS ((bfd
*, struct bfd_strtab_hash
*));
1796 /* Get the index of a string in a strtab, adding it if it is not
1799 static INLINE bfd_size_type
1800 add_to_stringtab (abfd
, tab
, str
, copy
)
1802 struct bfd_strtab_hash
*tab
;
1807 bfd_size_type index
;
1809 /* An index of 0 always means the empty string. */
1810 if (str
== 0 || *str
== '\0')
1813 /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx
1814 doesn't understand a hashed string table. */
1816 if ((abfd
->flags
& BFD_TRADITIONAL_FORMAT
) != 0)
1819 index
= _bfd_stringtab_add (tab
, str
, hash
, copy
);
1821 if (index
!= (bfd_size_type
) -1)
1823 /* Add BYTES_IN_WORD to the return value to account for the
1824 space taken up by the string table size. */
1825 index
+= BYTES_IN_WORD
;
1831 /* Write out a strtab. ABFD is already at the right location in the
1835 emit_stringtab (abfd
, tab
)
1837 struct bfd_strtab_hash
*tab
;
1839 bfd_byte buffer
[BYTES_IN_WORD
];
1841 /* The string table starts with the size. */
1842 PUT_WORD (abfd
, _bfd_stringtab_size (tab
) + BYTES_IN_WORD
, buffer
);
1843 if (bfd_write ((PTR
) buffer
, 1, BYTES_IN_WORD
, abfd
) != BYTES_IN_WORD
)
1846 return _bfd_stringtab_emit (abfd
, tab
);
1850 NAME(aout
,write_syms
) (abfd
)
1853 unsigned int count
;
1854 asymbol
**generic
= bfd_get_outsymbols (abfd
);
1855 struct bfd_strtab_hash
*strtab
;
1857 strtab
= _bfd_stringtab_init ();
1861 for (count
= 0; count
< bfd_get_symcount (abfd
); count
++)
1863 asymbol
*g
= generic
[count
];
1865 struct external_nlist nsp
;
1867 indx
= add_to_stringtab (abfd
, strtab
, g
->name
, false);
1868 if (indx
== (bfd_size_type
) -1)
1870 PUT_WORD (abfd
, indx
, (bfd_byte
*) nsp
.e_strx
);
1872 if (bfd_asymbol_flavour(g
) == abfd
->xvec
->flavour
)
1874 bfd_h_put_16(abfd
, aout_symbol(g
)->desc
, nsp
.e_desc
);
1875 bfd_h_put_8(abfd
, aout_symbol(g
)->other
, nsp
.e_other
);
1876 bfd_h_put_8(abfd
, aout_symbol(g
)->type
, nsp
.e_type
);
1880 bfd_h_put_16(abfd
,0, nsp
.e_desc
);
1881 bfd_h_put_8(abfd
, 0, nsp
.e_other
);
1882 bfd_h_put_8(abfd
, 0, nsp
.e_type
);
1885 if (! translate_to_native_sym_flags (abfd
, g
, &nsp
))
1888 if (bfd_write((PTR
)&nsp
,1,EXTERNAL_NLIST_SIZE
, abfd
)
1889 != EXTERNAL_NLIST_SIZE
)
1892 /* NB: `KEEPIT' currently overlays `udata.p', so set this only
1893 here, at the end. */
1897 if (! emit_stringtab (abfd
, strtab
))
1900 _bfd_stringtab_free (strtab
);
1905 _bfd_stringtab_free (strtab
);
1911 NAME(aout
,get_symtab
) (abfd
, location
)
1915 unsigned int counter
= 0;
1916 aout_symbol_type
*symbase
;
1918 if (!NAME(aout
,slurp_symbol_table
)(abfd
))
1921 for (symbase
= obj_aout_symbols(abfd
); counter
++ < bfd_get_symcount (abfd
);)
1922 *(location
++) = (asymbol
*)( symbase
++);
1924 return bfd_get_symcount (abfd
);
1928 /* Standard reloc stuff */
1929 /* Output standard relocation information to a file in target byte order. */
1932 NAME(aout
,swap_std_reloc_out
) (abfd
, g
, natptr
)
1935 struct reloc_std_external
*natptr
;
1938 asymbol
*sym
= *(g
->sym_ptr_ptr
);
1940 unsigned int r_length
;
1942 int r_baserel
, r_jmptable
, r_relative
;
1943 asection
*output_section
= sym
->section
->output_section
;
1945 PUT_WORD(abfd
, g
->address
, natptr
->r_address
);
1947 r_length
= g
->howto
->size
; /* Size as a power of two */
1948 r_pcrel
= (int) g
->howto
->pc_relative
; /* Relative to PC? */
1949 /* XXX This relies on relocs coming from a.out files. */
1950 r_baserel
= (g
->howto
->type
& 8) != 0;
1951 r_jmptable
= (g
->howto
->type
& 16) != 0;
1952 r_relative
= (g
->howto
->type
& 32) != 0;
1955 /* For a standard reloc, the addend is in the object file. */
1956 r_addend
= g
->addend
+ (*(g
->sym_ptr_ptr
))->section
->output_section
->vma
;
1959 /* name was clobbered by aout_write_syms to be symbol index */
1961 /* If this relocation is relative to a symbol then set the
1962 r_index to the symbols index, and the r_extern bit.
1964 Absolute symbols can come in in two ways, either as an offset
1965 from the abs section, or as a symbol which has an abs value.
1970 if (bfd_is_com_section (output_section
)
1971 || bfd_is_abs_section (output_section
)
1972 || bfd_is_und_section (output_section
))
1974 if (bfd_abs_section_ptr
->symbol
== sym
)
1976 /* Whoops, looked like an abs symbol, but is really an offset
1977 from the abs section */
1983 /* Fill in symbol */
1985 r_index
= (*(g
->sym_ptr_ptr
))->KEEPIT
;
1991 /* Just an ordinary section */
1993 r_index
= output_section
->target_index
;
1996 /* now the fun stuff */
1997 if (abfd
->xvec
->header_byteorder_big_p
!= false) {
1998 natptr
->r_index
[0] = r_index
>> 16;
1999 natptr
->r_index
[1] = r_index
>> 8;
2000 natptr
->r_index
[2] = r_index
;
2002 (r_extern
? RELOC_STD_BITS_EXTERN_BIG
: 0)
2003 | (r_pcrel
? RELOC_STD_BITS_PCREL_BIG
: 0)
2004 | (r_baserel
? RELOC_STD_BITS_BASEREL_BIG
: 0)
2005 | (r_jmptable
? RELOC_STD_BITS_JMPTABLE_BIG
: 0)
2006 | (r_relative
? RELOC_STD_BITS_RELATIVE_BIG
: 0)
2007 | (r_length
<< RELOC_STD_BITS_LENGTH_SH_BIG
);
2009 natptr
->r_index
[2] = r_index
>> 16;
2010 natptr
->r_index
[1] = r_index
>> 8;
2011 natptr
->r_index
[0] = r_index
;
2013 (r_extern
? RELOC_STD_BITS_EXTERN_LITTLE
: 0)
2014 | (r_pcrel
? RELOC_STD_BITS_PCREL_LITTLE
: 0)
2015 | (r_baserel
? RELOC_STD_BITS_BASEREL_LITTLE
: 0)
2016 | (r_jmptable
? RELOC_STD_BITS_JMPTABLE_LITTLE
: 0)
2017 | (r_relative
? RELOC_STD_BITS_RELATIVE_LITTLE
: 0)
2018 | (r_length
<< RELOC_STD_BITS_LENGTH_SH_LITTLE
);
2023 /* Extended stuff */
2024 /* Output extended relocation information to a file in target byte order. */
2027 NAME(aout
,swap_ext_reloc_out
) (abfd
, g
, natptr
)
2030 register struct reloc_ext_external
*natptr
;
2034 unsigned int r_type
;
2035 unsigned int r_addend
;
2036 asymbol
*sym
= *(g
->sym_ptr_ptr
);
2037 asection
*output_section
= sym
->section
->output_section
;
2039 PUT_WORD (abfd
, g
->address
, natptr
->r_address
);
2041 r_type
= (unsigned int) g
->howto
->type
;
2043 r_addend
= g
->addend
;
2044 if ((sym
->flags
& BSF_SECTION_SYM
) != 0)
2045 r_addend
+= (*(g
->sym_ptr_ptr
))->section
->output_section
->vma
;
2047 /* If this relocation is relative to a symbol then set the
2048 r_index to the symbols index, and the r_extern bit.
2050 Absolute symbols can come in in two ways, either as an offset
2051 from the abs section, or as a symbol which has an abs value.
2052 check for that here. */
2054 if (bfd_is_abs_section (bfd_get_section (sym
)))
2059 else if ((sym
->flags
& BSF_SECTION_SYM
) == 0)
2061 if (bfd_is_und_section (bfd_get_section (sym
))
2062 || (sym
->flags
& BSF_GLOBAL
) != 0)
2066 r_index
= (*(g
->sym_ptr_ptr
))->KEEPIT
;
2070 /* Just an ordinary section */
2072 r_index
= output_section
->target_index
;
2075 /* now the fun stuff */
2076 if (abfd
->xvec
->header_byteorder_big_p
!= false) {
2077 natptr
->r_index
[0] = r_index
>> 16;
2078 natptr
->r_index
[1] = r_index
>> 8;
2079 natptr
->r_index
[2] = r_index
;
2081 ((r_extern
? RELOC_EXT_BITS_EXTERN_BIG
: 0)
2082 | (r_type
<< RELOC_EXT_BITS_TYPE_SH_BIG
));
2084 natptr
->r_index
[2] = r_index
>> 16;
2085 natptr
->r_index
[1] = r_index
>> 8;
2086 natptr
->r_index
[0] = r_index
;
2088 (r_extern
? RELOC_EXT_BITS_EXTERN_LITTLE
: 0)
2089 | (r_type
<< RELOC_EXT_BITS_TYPE_SH_LITTLE
);
2092 PUT_WORD (abfd
, r_addend
, natptr
->r_addend
);
2095 /* BFD deals internally with all things based from the section they're
2096 in. so, something in 10 bytes into a text section with a base of
2097 50 would have a symbol (.text+10) and know .text vma was 50.
2099 Aout keeps all it's symbols based from zero, so the symbol would
2100 contain 60. This macro subs the base of each section from the value
2101 to give the true offset from the section */
2104 #define MOVE_ADDRESS(ad) \
2106 /* undefined symbol */ \
2107 cache_ptr->sym_ptr_ptr = symbols + r_index; \
2108 cache_ptr->addend = ad; \
2110 /* defined, section relative. replace symbol with pointer to \
2111 symbol which points to section */ \
2112 switch (r_index) { \
2114 case N_TEXT | N_EXT: \
2115 cache_ptr->sym_ptr_ptr = obj_textsec(abfd)->symbol_ptr_ptr; \
2116 cache_ptr->addend = ad - su->textsec->vma; \
2119 case N_DATA | N_EXT: \
2120 cache_ptr->sym_ptr_ptr = obj_datasec(abfd)->symbol_ptr_ptr; \
2121 cache_ptr->addend = ad - su->datasec->vma; \
2124 case N_BSS | N_EXT: \
2125 cache_ptr->sym_ptr_ptr = obj_bsssec(abfd)->symbol_ptr_ptr; \
2126 cache_ptr->addend = ad - su->bsssec->vma; \
2130 case N_ABS | N_EXT: \
2131 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
2132 cache_ptr->addend = ad; \
2138 NAME(aout
,swap_ext_reloc_in
) (abfd
, bytes
, cache_ptr
, symbols
, symcount
)
2140 struct reloc_ext_external
*bytes
;
2143 bfd_size_type symcount
;
2145 unsigned int r_index
;
2147 unsigned int r_type
;
2148 struct aoutdata
*su
= &(abfd
->tdata
.aout_data
->a
);
2150 cache_ptr
->address
= (GET_SWORD (abfd
, bytes
->r_address
));
2152 /* now the fun stuff */
2153 if (abfd
->xvec
->header_byteorder_big_p
!= false) {
2154 r_index
= (bytes
->r_index
[0] << 16)
2155 | (bytes
->r_index
[1] << 8)
2156 | bytes
->r_index
[2];
2157 r_extern
= (0 != (bytes
->r_type
[0] & RELOC_EXT_BITS_EXTERN_BIG
));
2158 r_type
= (bytes
->r_type
[0] & RELOC_EXT_BITS_TYPE_BIG
)
2159 >> RELOC_EXT_BITS_TYPE_SH_BIG
;
2161 r_index
= (bytes
->r_index
[2] << 16)
2162 | (bytes
->r_index
[1] << 8)
2163 | bytes
->r_index
[0];
2164 r_extern
= (0 != (bytes
->r_type
[0] & RELOC_EXT_BITS_EXTERN_LITTLE
));
2165 r_type
= (bytes
->r_type
[0] & RELOC_EXT_BITS_TYPE_LITTLE
)
2166 >> RELOC_EXT_BITS_TYPE_SH_LITTLE
;
2169 cache_ptr
->howto
= howto_table_ext
+ r_type
;
2171 /* Base relative relocs are always against the symbol table,
2172 regardless of the setting of r_extern. r_extern just reflects
2173 whether the symbol the reloc is against is local or global. */
2174 if (r_type
== RELOC_BASE10
2175 || r_type
== RELOC_BASE13
2176 || r_type
== RELOC_BASE22
)
2179 if (r_extern
&& r_index
> symcount
)
2181 /* We could arrange to return an error, but it might be useful
2182 to see the file even if it is bad. */
2187 MOVE_ADDRESS(GET_SWORD(abfd
, bytes
->r_addend
));
2191 NAME(aout
,swap_std_reloc_in
) (abfd
, bytes
, cache_ptr
, symbols
, symcount
)
2193 struct reloc_std_external
*bytes
;
2196 bfd_size_type symcount
;
2198 unsigned int r_index
;
2200 unsigned int r_length
;
2202 int r_baserel
, r_jmptable
, r_relative
;
2203 struct aoutdata
*su
= &(abfd
->tdata
.aout_data
->a
);
2204 unsigned int howto_idx
;
2206 cache_ptr
->address
= bfd_h_get_32 (abfd
, bytes
->r_address
);
2208 /* now the fun stuff */
2209 if (abfd
->xvec
->header_byteorder_big_p
!= false) {
2210 r_index
= (bytes
->r_index
[0] << 16)
2211 | (bytes
->r_index
[1] << 8)
2212 | bytes
->r_index
[2];
2213 r_extern
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_EXTERN_BIG
));
2214 r_pcrel
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_PCREL_BIG
));
2215 r_baserel
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_BASEREL_BIG
));
2216 r_jmptable
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_JMPTABLE_BIG
));
2217 r_relative
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_RELATIVE_BIG
));
2218 r_length
= (bytes
->r_type
[0] & RELOC_STD_BITS_LENGTH_BIG
)
2219 >> RELOC_STD_BITS_LENGTH_SH_BIG
;
2221 r_index
= (bytes
->r_index
[2] << 16)
2222 | (bytes
->r_index
[1] << 8)
2223 | bytes
->r_index
[0];
2224 r_extern
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_EXTERN_LITTLE
));
2225 r_pcrel
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_PCREL_LITTLE
));
2226 r_baserel
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_BASEREL_LITTLE
));
2227 r_jmptable
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_JMPTABLE_LITTLE
));
2228 r_relative
= (0 != (bytes
->r_type
[0] & RELOC_STD_BITS_RELATIVE_LITTLE
));
2229 r_length
= (bytes
->r_type
[0] & RELOC_STD_BITS_LENGTH_LITTLE
)
2230 >> RELOC_STD_BITS_LENGTH_SH_LITTLE
;
2233 howto_idx
= r_length
+ 4 * r_pcrel
+ 8 * r_baserel
2234 + 16 * r_jmptable
+ 32 * r_relative
;
2235 BFD_ASSERT (howto_idx
< TABLE_SIZE (howto_table_std
));
2236 cache_ptr
->howto
= howto_table_std
+ howto_idx
;
2237 BFD_ASSERT (cache_ptr
->howto
->type
!= (unsigned int) -1);
2239 /* Base relative relocs are always against the symbol table,
2240 regardless of the setting of r_extern. r_extern just reflects
2241 whether the symbol the reloc is against is local or global. */
2245 if (r_extern
&& r_index
> symcount
)
2247 /* We could arrange to return an error, but it might be useful
2248 to see the file even if it is bad. */
2256 /* Read and swap the relocs for a section. */
2259 NAME(aout
,slurp_reloc_table
) (abfd
, asect
, symbols
)
2265 bfd_size_type reloc_size
;
2267 arelent
*reloc_cache
;
2269 unsigned int counter
= 0;
2272 if (asect
->relocation
)
2275 if (asect
->flags
& SEC_CONSTRUCTOR
)
2278 if (asect
== obj_datasec (abfd
))
2279 reloc_size
= exec_hdr(abfd
)->a_drsize
;
2280 else if (asect
== obj_textsec (abfd
))
2281 reloc_size
= exec_hdr(abfd
)->a_trsize
;
2282 else if (asect
== obj_bsssec (abfd
))
2286 bfd_set_error (bfd_error_invalid_operation
);
2290 if (bfd_seek (abfd
, asect
->rel_filepos
, SEEK_SET
) != 0)
2293 each_size
= obj_reloc_entry_size (abfd
);
2295 count
= reloc_size
/ each_size
;
2297 reloc_cache
= (arelent
*) malloc ((size_t) (count
* sizeof (arelent
)));
2298 if (reloc_cache
== NULL
&& count
!= 0)
2300 bfd_set_error (bfd_error_no_memory
);
2303 memset (reloc_cache
, 0, count
* sizeof (arelent
));
2305 relocs
= malloc ((size_t) reloc_size
);
2306 if (relocs
== NULL
&& reloc_size
!= 0)
2309 bfd_set_error (bfd_error_no_memory
);
2313 if (bfd_read (relocs
, 1, reloc_size
, abfd
) != reloc_size
)
2320 cache_ptr
= reloc_cache
;
2321 if (each_size
== RELOC_EXT_SIZE
)
2323 register struct reloc_ext_external
*rptr
=
2324 (struct reloc_ext_external
*) relocs
;
2326 for (; counter
< count
; counter
++, rptr
++, cache_ptr
++)
2327 NAME(aout
,swap_ext_reloc_in
) (abfd
, rptr
, cache_ptr
, symbols
,
2328 bfd_get_symcount (abfd
));
2332 register struct reloc_std_external
*rptr
=
2333 (struct reloc_std_external
*) relocs
;
2335 for (; counter
< count
; counter
++, rptr
++, cache_ptr
++)
2336 MY_swap_std_reloc_in (abfd
, rptr
, cache_ptr
, symbols
,
2337 bfd_get_symcount (abfd
));
2342 asect
->relocation
= reloc_cache
;
2343 asect
->reloc_count
= cache_ptr
- reloc_cache
;
2348 /* Write out a relocation section into an object file. */
2351 NAME(aout
,squirt_out_relocs
) (abfd
, section
)
2356 unsigned char *native
, *natptr
;
2359 unsigned int count
= section
->reloc_count
;
2362 if (count
== 0) return true;
2364 each_size
= obj_reloc_entry_size (abfd
);
2365 natsize
= each_size
* count
;
2366 native
= (unsigned char *) bfd_zalloc (abfd
, natsize
);
2370 generic
= section
->orelocation
;
2372 if (each_size
== RELOC_EXT_SIZE
)
2374 for (natptr
= native
;
2376 --count
, natptr
+= each_size
, ++generic
)
2377 NAME(aout
,swap_ext_reloc_out
) (abfd
, *generic
, (struct reloc_ext_external
*)natptr
);
2381 for (natptr
= native
;
2383 --count
, natptr
+= each_size
, ++generic
)
2384 MY_swap_std_reloc_out(abfd
, *generic
, (struct reloc_std_external
*)natptr
);
2387 if ( bfd_write ((PTR
) native
, 1, natsize
, abfd
) != natsize
) {
2388 bfd_release(abfd
, native
);
2391 bfd_release (abfd
, native
);
2396 /* This is stupid. This function should be a boolean predicate */
2398 NAME(aout
,canonicalize_reloc
) (abfd
, section
, relptr
, symbols
)
2404 arelent
*tblptr
= section
->relocation
;
2407 if (section
== obj_bsssec (abfd
))
2413 if (!(tblptr
|| NAME(aout
,slurp_reloc_table
)(abfd
, section
, symbols
)))
2416 if (section
->flags
& SEC_CONSTRUCTOR
) {
2417 arelent_chain
*chain
= section
->constructor_chain
;
2418 for (count
= 0; count
< section
->reloc_count
; count
++) {
2419 *relptr
++ = &chain
->relent
;
2420 chain
= chain
->next
;
2424 tblptr
= section
->relocation
;
2426 for (count
= 0; count
++ < section
->reloc_count
;)
2428 *relptr
++ = tblptr
++;
2433 return section
->reloc_count
;
2437 NAME(aout
,get_reloc_upper_bound
) (abfd
, asect
)
2441 if (bfd_get_format (abfd
) != bfd_object
) {
2442 bfd_set_error (bfd_error_invalid_operation
);
2445 if (asect
->flags
& SEC_CONSTRUCTOR
) {
2446 return (sizeof (arelent
*) * (asect
->reloc_count
+1));
2449 if (asect
== obj_datasec (abfd
))
2450 return (sizeof (arelent
*)
2451 * ((exec_hdr(abfd
)->a_drsize
/ obj_reloc_entry_size (abfd
))
2454 if (asect
== obj_textsec (abfd
))
2455 return (sizeof (arelent
*)
2456 * ((exec_hdr(abfd
)->a_trsize
/ obj_reloc_entry_size (abfd
))
2459 if (asect
== obj_bsssec (abfd
))
2460 return sizeof (arelent
*);
2462 if (asect
== obj_bsssec (abfd
))
2465 bfd_set_error (bfd_error_invalid_operation
);
2471 NAME(aout
,get_symtab_upper_bound
) (abfd
)
2474 if (!NAME(aout
,slurp_symbol_table
)(abfd
))
2477 return (bfd_get_symcount (abfd
)+1) * (sizeof (aout_symbol_type
*));
2482 NAME(aout
,get_lineno
) (ignore_abfd
, ignore_symbol
)
2484 asymbol
*ignore_symbol
;
2486 return (alent
*)NULL
;
2491 NAME(aout
,get_symbol_info
) (ignore_abfd
, symbol
, ret
)
2496 bfd_symbol_info (symbol
, ret
);
2498 if (ret
->type
== '?')
2500 int type_code
= aout_symbol(symbol
)->type
& 0xff;
2501 CONST
char *stab_name
= aout_stab_name(type_code
);
2502 static char buf
[10];
2504 if (stab_name
== NULL
)
2506 sprintf(buf
, "(%d)", type_code
);
2510 ret
->stab_other
= (unsigned)(aout_symbol(symbol
)->other
& 0xff);
2511 ret
->stab_desc
= (unsigned)(aout_symbol(symbol
)->desc
& 0xffff);
2512 ret
->stab_name
= stab_name
;
2518 NAME(aout
,print_symbol
) (ignore_abfd
, afile
, symbol
, how
)
2522 bfd_print_symbol_type how
;
2524 FILE *file
= (FILE *)afile
;
2527 case bfd_print_symbol_name
:
2529 fprintf(file
,"%s", symbol
->name
);
2531 case bfd_print_symbol_more
:
2532 fprintf(file
,"%4x %2x %2x",(unsigned)(aout_symbol(symbol
)->desc
& 0xffff),
2533 (unsigned)(aout_symbol(symbol
)->other
& 0xff),
2534 (unsigned)(aout_symbol(symbol
)->type
));
2536 case bfd_print_symbol_all
:
2538 CONST
char *section_name
= symbol
->section
->name
;
2541 bfd_print_symbol_vandf((PTR
)file
,symbol
);
2543 fprintf(file
," %-5s %04x %02x %02x",
2545 (unsigned)(aout_symbol(symbol
)->desc
& 0xffff),
2546 (unsigned)(aout_symbol(symbol
)->other
& 0xff),
2547 (unsigned)(aout_symbol(symbol
)->type
& 0xff));
2549 fprintf(file
," %s", symbol
->name
);
2555 /* If we don't have to allocate more than 1MB to hold the generic
2556 symbols, we use the generic minisymbol methord: it's faster, since
2557 it only translates the symbols once, not multiple times. */
2558 #define MINISYM_THRESHOLD (1000000 / sizeof (asymbol))
2560 /* Read minisymbols. For minisymbols, we use the unmodified a.out
2561 symbols. The minisymbol_to_symbol function translates these into
2562 BFD asymbol structures. */
2565 NAME(aout
,read_minisymbols
) (abfd
, dynamic
, minisymsp
, sizep
)
2569 unsigned int *sizep
;
2573 /* We could handle the dynamic symbols here as well, but it's
2574 easier to hand them off. */
2575 return _bfd_generic_read_minisymbols (abfd
, dynamic
, minisymsp
, sizep
);
2578 if (! aout_get_external_symbols (abfd
))
2581 if (obj_aout_external_sym_count (abfd
) < MINISYM_THRESHOLD
)
2582 return _bfd_generic_read_minisymbols (abfd
, dynamic
, minisymsp
, sizep
);
2584 *minisymsp
= (PTR
) obj_aout_external_syms (abfd
);
2586 /* By passing the external symbols back from this routine, we are
2587 giving up control over the memory block. Clear
2588 obj_aout_external_syms, so that we do not try to free it
2590 obj_aout_external_syms (abfd
) = NULL
;
2592 *sizep
= EXTERNAL_NLIST_SIZE
;
2593 return obj_aout_external_sym_count (abfd
);
2596 /* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
2597 unmodified a.out symbol. The SYM argument is a structure returned
2598 by bfd_make_empty_symbol, which we fill in here. */
2601 NAME(aout
,minisymbol_to_symbol
) (abfd
, dynamic
, minisym
, sym
)
2608 || obj_aout_external_sym_count (abfd
) < MINISYM_THRESHOLD
)
2609 return _bfd_generic_minisymbol_to_symbol (abfd
, dynamic
, minisym
, sym
);
2611 memset (sym
, 0, sizeof (aout_symbol_type
));
2613 /* We call translate_symbol_table to translate a single symbol. */
2614 if (! (NAME(aout
,translate_symbol_table
)
2616 (aout_symbol_type
*) sym
,
2617 (struct external_nlist
*) minisym
,
2619 obj_aout_external_strings (abfd
),
2620 obj_aout_external_string_size (abfd
),
2628 provided a BFD, a section and an offset into the section, calculate
2629 and return the name of the source file and the line nearest to the
2634 NAME(aout
,find_nearest_line
)
2635 (abfd
, section
, symbols
, offset
, filename_ptr
, functionname_ptr
, line_ptr
)
2640 CONST
char **filename_ptr
;
2641 CONST
char **functionname_ptr
;
2642 unsigned int *line_ptr
;
2644 /* Run down the file looking for the filename, function and linenumber */
2646 CONST
char *directory_name
= NULL
;
2647 CONST
char *main_file_name
= NULL
;
2648 CONST
char *current_file_name
= NULL
;
2649 CONST
char *line_file_name
= NULL
; /* Value of current_file_name at line number. */
2650 bfd_vma low_line_vma
= 0;
2651 bfd_vma low_func_vma
= 0;
2653 size_t filelen
, funclen
;
2656 *filename_ptr
= abfd
->filename
;
2657 *functionname_ptr
= 0;
2659 if (symbols
!= (asymbol
**)NULL
) {
2660 for (p
= symbols
; *p
; p
++) {
2661 aout_symbol_type
*q
= (aout_symbol_type
*)(*p
);
2665 main_file_name
= current_file_name
= q
->symbol
.name
;
2666 /* Look ahead to next symbol to check if that too is an N_SO. */
2670 q
= (aout_symbol_type
*)(*p
);
2671 if (q
->type
!= (int)N_SO
)
2674 /* Found a second N_SO First is directory; second is filename. */
2675 directory_name
= current_file_name
;
2676 main_file_name
= current_file_name
= q
->symbol
.name
;
2677 if (obj_textsec(abfd
) != section
)
2681 current_file_name
= q
->symbol
.name
;
2688 /* We'll keep this if it resolves nearer than the one we have
2690 if (q
->symbol
.value
>= low_line_vma
2691 && q
->symbol
.value
<= offset
)
2693 *line_ptr
= q
->desc
;
2694 low_line_vma
= q
->symbol
.value
;
2695 line_file_name
= current_file_name
;
2700 /* We'll keep this if it is nearer than the one we have already */
2701 if (q
->symbol
.value
>= low_func_vma
&&
2702 q
->symbol
.value
<= offset
) {
2703 low_func_vma
= q
->symbol
.value
;
2704 func
= (asymbol
*)q
;
2706 else if (q
->symbol
.value
> offset
)
2716 main_file_name
= line_file_name
;
2718 if (main_file_name
== NULL
2719 || main_file_name
[0] == '/'
2720 || directory_name
== NULL
)
2723 filelen
= strlen (directory_name
) + strlen (main_file_name
);
2727 funclen
= strlen (bfd_asymbol_name (func
));
2729 if (adata (abfd
).line_buf
!= NULL
)
2730 free (adata (abfd
).line_buf
);
2731 if (filelen
+ funclen
== 0)
2732 adata (abfd
).line_buf
= buf
= NULL
;
2735 adata (abfd
).line_buf
= buf
= (char *) malloc (filelen
+ funclen
+ 2);
2736 if (adata (abfd
).line_buf
== NULL
)
2738 bfd_set_error (bfd_error_no_memory
);
2743 if (main_file_name
!= NULL
)
2745 if (main_file_name
[0] == '/' || directory_name
== NULL
)
2746 *filename_ptr
= main_file_name
;
2749 sprintf (buf
, "%s%s", directory_name
, main_file_name
);
2750 *filename_ptr
= buf
;
2757 const char *function
= func
->name
;
2760 /* The caller expects a symbol name. We actually have a
2761 function name, without the leading underscore. Put the
2762 underscore back in, so that the caller gets a symbol name. */
2763 if (bfd_get_symbol_leading_char (abfd
) == '\0')
2764 strcpy (buf
, function
);
2767 buf
[0] = bfd_get_symbol_leading_char (abfd
);
2768 strcpy (buf
+ 1, function
);
2770 /* Have to remove : stuff */
2771 p
= strchr (buf
, ':');
2774 *functionname_ptr
= buf
;
2782 NAME(aout
,sizeof_headers
) (abfd
, execable
)
2786 return adata(abfd
).exec_bytes_size
;
2789 /* Free all information we have cached for this BFD. We can always
2790 read it again later if we need it. */
2793 NAME(aout
,bfd_free_cached_info
) (abfd
)
2798 if (bfd_get_format (abfd
) != bfd_object
)
2801 #define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
2802 BFCI_FREE (obj_aout_symbols (abfd
));
2804 obj_aout_external_syms (abfd
) = 0;
2805 bfd_free_window (&obj_aout_sym_window (abfd
));
2806 bfd_free_window (&obj_aout_string_window (abfd
));
2807 obj_aout_external_strings (abfd
) = 0;
2809 BFCI_FREE (obj_aout_external_syms (abfd
));
2810 BFCI_FREE (obj_aout_external_strings (abfd
));
2812 for (o
= abfd
->sections
; o
!= (asection
*) NULL
; o
= o
->next
)
2813 BFCI_FREE (o
->relocation
);
2819 /* a.out link code. */
2821 static boolean aout_link_add_object_symbols
2822 PARAMS ((bfd
*, struct bfd_link_info
*));
2823 static boolean aout_link_check_archive_element
2824 PARAMS ((bfd
*, struct bfd_link_info
*, boolean
*));
2825 static boolean aout_link_free_symbols
PARAMS ((bfd
*));
2826 static boolean aout_link_check_ar_symbols
2827 PARAMS ((bfd
*, struct bfd_link_info
*, boolean
*pneeded
));
2828 static boolean aout_link_add_symbols
2829 PARAMS ((bfd
*, struct bfd_link_info
*));
2831 /* Routine to create an entry in an a.out link hash table. */
2833 struct bfd_hash_entry
*
2834 NAME(aout
,link_hash_newfunc
) (entry
, table
, string
)
2835 struct bfd_hash_entry
*entry
;
2836 struct bfd_hash_table
*table
;
2839 struct aout_link_hash_entry
*ret
= (struct aout_link_hash_entry
*) entry
;
2841 /* Allocate the structure if it has not already been allocated by a
2843 if (ret
== (struct aout_link_hash_entry
*) NULL
)
2844 ret
= ((struct aout_link_hash_entry
*)
2845 bfd_hash_allocate (table
, sizeof (struct aout_link_hash_entry
)));
2846 if (ret
== (struct aout_link_hash_entry
*) NULL
)
2847 return (struct bfd_hash_entry
*) ret
;
2849 /* Call the allocation method of the superclass. */
2850 ret
= ((struct aout_link_hash_entry
*)
2851 _bfd_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
2855 /* Set local fields. */
2856 ret
->written
= false;
2860 return (struct bfd_hash_entry
*) ret
;
2863 /* Initialize an a.out link hash table. */
2866 NAME(aout
,link_hash_table_init
) (table
, abfd
, newfunc
)
2867 struct aout_link_hash_table
*table
;
2869 struct bfd_hash_entry
*(*newfunc
) PARAMS ((struct bfd_hash_entry
*,
2870 struct bfd_hash_table
*,
2873 return _bfd_link_hash_table_init (&table
->root
, abfd
, newfunc
);
2876 /* Create an a.out link hash table. */
2878 struct bfd_link_hash_table
*
2879 NAME(aout
,link_hash_table_create
) (abfd
)
2882 struct aout_link_hash_table
*ret
;
2884 ret
= ((struct aout_link_hash_table
*)
2885 bfd_alloc (abfd
, sizeof (struct aout_link_hash_table
)));
2887 return (struct bfd_link_hash_table
*) NULL
;
2888 if (! NAME(aout
,link_hash_table_init
) (ret
, abfd
,
2889 NAME(aout
,link_hash_newfunc
)))
2892 return (struct bfd_link_hash_table
*) NULL
;
2897 /* Given an a.out BFD, add symbols to the global hash table as
2901 NAME(aout
,link_add_symbols
) (abfd
, info
)
2903 struct bfd_link_info
*info
;
2905 switch (bfd_get_format (abfd
))
2908 return aout_link_add_object_symbols (abfd
, info
);
2910 return _bfd_generic_link_add_archive_symbols
2911 (abfd
, info
, aout_link_check_archive_element
);
2913 bfd_set_error (bfd_error_wrong_format
);
2918 /* Add symbols from an a.out object file. */
2921 aout_link_add_object_symbols (abfd
, info
)
2923 struct bfd_link_info
*info
;
2925 if (! aout_get_external_symbols (abfd
))
2927 if (! aout_link_add_symbols (abfd
, info
))
2929 if (! info
->keep_memory
)
2931 if (! aout_link_free_symbols (abfd
))
2937 /* Check a single archive element to see if we need to include it in
2938 the link. *PNEEDED is set according to whether this element is
2939 needed in the link or not. This is called from
2940 _bfd_generic_link_add_archive_symbols. */
2943 aout_link_check_archive_element (abfd
, info
, pneeded
)
2945 struct bfd_link_info
*info
;
2948 if (! aout_get_external_symbols (abfd
))
2951 if (! aout_link_check_ar_symbols (abfd
, info
, pneeded
))
2956 if (! aout_link_add_symbols (abfd
, info
))
2960 if (! info
->keep_memory
|| ! *pneeded
)
2962 if (! aout_link_free_symbols (abfd
))
2969 /* Free up the internal symbols read from an a.out file. */
2972 aout_link_free_symbols (abfd
)
2975 if (obj_aout_external_syms (abfd
) != (struct external_nlist
*) NULL
)
2978 bfd_free_window (&obj_aout_sym_window (abfd
));
2980 free ((PTR
) obj_aout_external_syms (abfd
));
2982 obj_aout_external_syms (abfd
) = (struct external_nlist
*) NULL
;
2984 if (obj_aout_external_strings (abfd
) != (char *) NULL
)
2987 bfd_free_window (&obj_aout_string_window (abfd
));
2989 free ((PTR
) obj_aout_external_strings (abfd
));
2991 obj_aout_external_strings (abfd
) = (char *) NULL
;
2996 /* Look through the internal symbols to see if this object file should
2997 be included in the link. We should include this object file if it
2998 defines any symbols which are currently undefined. If this object
2999 file defines a common symbol, then we may adjust the size of the
3000 known symbol but we do not include the object file in the link
3001 (unless there is some other reason to include it). */
3004 aout_link_check_ar_symbols (abfd
, info
, pneeded
)
3006 struct bfd_link_info
*info
;
3009 register struct external_nlist
*p
;
3010 struct external_nlist
*pend
;
3015 /* Look through all the symbols. */
3016 p
= obj_aout_external_syms (abfd
);
3017 pend
= p
+ obj_aout_external_sym_count (abfd
);
3018 strings
= obj_aout_external_strings (abfd
);
3019 for (; p
< pend
; p
++)
3021 int type
= bfd_h_get_8 (abfd
, p
->e_type
);
3023 struct bfd_link_hash_entry
*h
;
3025 /* Ignore symbols that are not externally visible. This is an
3026 optimization only, as we check the type more thoroughly
3028 if (((type
& N_EXT
) == 0
3029 || (type
& N_STAB
) != 0
3036 if (type
== N_WARNING
3042 name
= strings
+ GET_WORD (abfd
, p
->e_strx
);
3043 h
= bfd_link_hash_lookup (info
->hash
, name
, false, false, true);
3045 /* We are only interested in symbols that are currently
3046 undefined or common. */
3047 if (h
== (struct bfd_link_hash_entry
*) NULL
3048 || (h
->type
!= bfd_link_hash_undefined
3049 && h
->type
!= bfd_link_hash_common
))
3051 if (type
== (N_INDR
| N_EXT
))
3056 if (type
== (N_TEXT
| N_EXT
)
3057 || type
== (N_DATA
| N_EXT
)
3058 || type
== (N_BSS
| N_EXT
)
3059 || type
== (N_ABS
| N_EXT
)
3060 || type
== (N_INDR
| N_EXT
))
3062 /* This object file defines this symbol. We must link it
3063 in. This is true regardless of whether the current
3064 definition of the symbol is undefined or common. If the
3065 current definition is common, we have a case in which we
3066 have already seen an object file including
3068 and this object file from the archive includes
3070 In such a case we must include this object file.
3072 FIXME: The SunOS 4.1.3 linker will pull in the archive
3073 element if the symbol is defined in the .data section,
3074 but not if it is defined in the .text section. That
3075 seems a bit crazy to me, and I haven't implemented it.
3076 However, it might be correct. */
3077 if (! (*info
->callbacks
->add_archive_element
) (info
, abfd
, name
))
3083 if (type
== (N_UNDF
| N_EXT
))
3087 value
= GET_WORD (abfd
, p
->e_value
);
3090 /* This symbol is common in the object from the archive
3092 if (h
->type
== bfd_link_hash_undefined
)
3097 symbfd
= h
->u
.undef
.abfd
;
3098 if (symbfd
== (bfd
*) NULL
)
3100 /* This symbol was created as undefined from
3101 outside BFD. We assume that we should link
3102 in the object file. This is done for the -u
3103 option in the linker. */
3104 if (! (*info
->callbacks
->add_archive_element
) (info
,
3111 /* Turn the current link symbol into a common
3112 symbol. It is already on the undefs list. */
3113 h
->type
= bfd_link_hash_common
;
3114 h
->u
.c
.p
= ((struct bfd_link_hash_common_entry
*)
3115 bfd_hash_allocate (&info
->hash
->table
,
3116 sizeof (struct bfd_link_hash_common_entry
)));
3117 if (h
->u
.c
.p
== NULL
)
3120 h
->u
.c
.size
= value
;
3122 /* FIXME: This isn't quite right. The maximum
3123 alignment of a common symbol should be set by the
3124 architecture of the output file, not of the input
3126 power
= bfd_log2 (value
);
3127 if (power
> bfd_get_arch_info (abfd
)->section_align_power
)
3128 power
= bfd_get_arch_info (abfd
)->section_align_power
;
3129 h
->u
.c
.p
->alignment_power
= power
;
3131 h
->u
.c
.p
->section
= bfd_make_section_old_way (symbfd
,
3136 /* Adjust the size of the common symbol if
3138 if (value
> h
->u
.c
.size
)
3139 h
->u
.c
.size
= value
;
3149 /* This symbol is weak but defined. We must pull it in if
3150 the current link symbol is undefined, but we don't want
3151 it if the current link symbol is common. */
3152 if (h
->type
== bfd_link_hash_undefined
)
3154 if (! (*info
->callbacks
->add_archive_element
) (info
, abfd
, name
))
3162 /* We do not need this object file. */
3166 /* Add all symbols from an object file to the hash table. */
3169 aout_link_add_symbols (abfd
, info
)
3171 struct bfd_link_info
*info
;
3173 boolean (*add_one_symbol
) PARAMS ((struct bfd_link_info
*, bfd
*,
3174 const char *, flagword
, asection
*,
3175 bfd_vma
, const char *, boolean
,
3177 struct bfd_link_hash_entry
**));
3178 struct external_nlist
*syms
;
3179 bfd_size_type sym_count
;
3182 struct aout_link_hash_entry
**sym_hash
;
3183 register struct external_nlist
*p
;
3184 struct external_nlist
*pend
;
3186 syms
= obj_aout_external_syms (abfd
);
3187 sym_count
= obj_aout_external_sym_count (abfd
);
3188 strings
= obj_aout_external_strings (abfd
);
3189 if (info
->keep_memory
)
3194 if ((abfd
->flags
& DYNAMIC
) != 0
3195 && aout_backend_info (abfd
)->add_dynamic_symbols
!= NULL
)
3197 if (! ((*aout_backend_info (abfd
)->add_dynamic_symbols
)
3198 (abfd
, info
, &syms
, &sym_count
, &strings
)))
3202 /* We keep a list of the linker hash table entries that correspond
3203 to particular symbols. We could just look them up in the hash
3204 table, but keeping the list is more efficient. Perhaps this
3205 should be conditional on info->keep_memory. */
3206 sym_hash
= ((struct aout_link_hash_entry
**)
3209 * sizeof (struct aout_link_hash_entry
*))));
3210 if (sym_hash
== NULL
&& sym_count
!= 0)
3212 obj_aout_sym_hashes (abfd
) = sym_hash
;
3214 add_one_symbol
= aout_backend_info (abfd
)->add_one_symbol
;
3215 if (add_one_symbol
== NULL
)
3216 add_one_symbol
= _bfd_generic_link_add_one_symbol
;
3219 pend
= p
+ sym_count
;
3220 for (; p
< pend
; p
++, sym_hash
++)
3231 type
= bfd_h_get_8 (abfd
, p
->e_type
);
3233 /* Ignore debugging symbols. */
3234 if ((type
& N_STAB
) != 0)
3237 name
= strings
+ GET_WORD (abfd
, p
->e_strx
);
3238 value
= GET_WORD (abfd
, p
->e_value
);
3255 /* Ignore symbols that are not externally visible. */
3258 /* Ignore local indirect symbol. */
3263 case N_UNDF
| N_EXT
:
3266 section
= bfd_und_section_ptr
;
3270 section
= bfd_com_section_ptr
;
3273 section
= bfd_abs_section_ptr
;
3275 case N_TEXT
| N_EXT
:
3276 section
= obj_textsec (abfd
);
3277 value
-= bfd_get_section_vma (abfd
, section
);
3279 case N_DATA
| N_EXT
:
3280 case N_SETV
| N_EXT
:
3281 /* Treat N_SETV symbols as N_DATA symbol; see comment in
3282 translate_from_native_sym_flags. */
3283 section
= obj_datasec (abfd
);
3284 value
-= bfd_get_section_vma (abfd
, section
);
3287 section
= obj_bsssec (abfd
);
3288 value
-= bfd_get_section_vma (abfd
, section
);
3290 case N_INDR
| N_EXT
:
3291 /* An indirect symbol. The next symbol is the symbol
3292 which this one really is. */
3293 BFD_ASSERT (p
+ 1 < pend
);
3295 string
= strings
+ GET_WORD (abfd
, p
->e_strx
);
3296 section
= bfd_ind_section_ptr
;
3297 flags
|= BSF_INDIRECT
;
3299 case N_COMM
| N_EXT
:
3300 section
= bfd_com_section_ptr
;
3302 case N_SETA
: case N_SETA
| N_EXT
:
3303 section
= bfd_abs_section_ptr
;
3304 flags
|= BSF_CONSTRUCTOR
;
3306 case N_SETT
: case N_SETT
| N_EXT
:
3307 section
= obj_textsec (abfd
);
3308 flags
|= BSF_CONSTRUCTOR
;
3309 value
-= bfd_get_section_vma (abfd
, section
);
3311 case N_SETD
: case N_SETD
| N_EXT
:
3312 section
= obj_datasec (abfd
);
3313 flags
|= BSF_CONSTRUCTOR
;
3314 value
-= bfd_get_section_vma (abfd
, section
);
3316 case N_SETB
: case N_SETB
| N_EXT
:
3317 section
= obj_bsssec (abfd
);
3318 flags
|= BSF_CONSTRUCTOR
;
3319 value
-= bfd_get_section_vma (abfd
, section
);
3322 /* A warning symbol. The next symbol is the one to warn
3324 BFD_ASSERT (p
+ 1 < pend
);
3327 name
= strings
+ GET_WORD (abfd
, p
->e_strx
);
3328 section
= bfd_und_section_ptr
;
3329 flags
|= BSF_WARNING
;
3332 section
= bfd_und_section_ptr
;
3336 section
= bfd_abs_section_ptr
;
3340 section
= obj_textsec (abfd
);
3341 value
-= bfd_get_section_vma (abfd
, section
);
3345 section
= obj_datasec (abfd
);
3346 value
-= bfd_get_section_vma (abfd
, section
);
3350 section
= obj_bsssec (abfd
);
3351 value
-= bfd_get_section_vma (abfd
, section
);
3356 if (! ((*add_one_symbol
)
3357 (info
, abfd
, name
, flags
, section
, value
, string
, copy
, false,
3358 (struct bfd_link_hash_entry
**) sym_hash
)))
3361 /* Restrict the maximum alignment of a common symbol based on
3362 the architecture, since a.out has no way to represent
3363 alignment requirements of a section in a .o file. FIXME:
3364 This isn't quite right: it should use the architecture of the
3365 output file, not the input files. */
3366 if ((*sym_hash
)->root
.type
== bfd_link_hash_common
3367 && ((*sym_hash
)->root
.u
.c
.p
->alignment_power
>
3368 bfd_get_arch_info (abfd
)->section_align_power
))
3369 (*sym_hash
)->root
.u
.c
.p
->alignment_power
=
3370 bfd_get_arch_info (abfd
)->section_align_power
;
3372 /* If this is a set symbol, and we are not building sets, then
3373 it is possible for the hash entry to not have been set. In
3374 such a case, treat the symbol as not globally defined. */
3375 if ((*sym_hash
)->root
.type
== bfd_link_hash_new
)
3377 BFD_ASSERT ((flags
& BSF_CONSTRUCTOR
) != 0);
3381 if (type
== (N_INDR
| N_EXT
) || type
== N_WARNING
)
3388 /* During the final link step we need to pass around a bunch of
3389 information, so we do it in an instance of this structure. */
3391 struct aout_final_link_info
3393 /* General link information. */
3394 struct bfd_link_info
*info
;
3397 /* Reloc file positions. */
3398 file_ptr treloff
, dreloff
;
3399 /* File position of symbols. */
3402 struct bfd_strtab_hash
*strtab
;
3403 /* A buffer large enough to hold the contents of any section. */
3405 /* A buffer large enough to hold the relocs of any section. */
3407 /* A buffer large enough to hold the symbol map of any input BFD. */
3409 /* A buffer large enough to hold output symbols of any input BFD. */
3410 struct external_nlist
*output_syms
;
3413 static boolean aout_link_input_bfd
3414 PARAMS ((struct aout_final_link_info
*, bfd
*input_bfd
));
3415 static boolean aout_link_write_symbols
3416 PARAMS ((struct aout_final_link_info
*, bfd
*input_bfd
));
3417 static boolean aout_link_write_other_symbol
3418 PARAMS ((struct aout_link_hash_entry
*, PTR
));
3419 static boolean aout_link_input_section
3420 PARAMS ((struct aout_final_link_info
*, bfd
*input_bfd
,
3421 asection
*input_section
, file_ptr
*reloff_ptr
,
3422 bfd_size_type rel_size
));
3423 static boolean aout_link_input_section_std
3424 PARAMS ((struct aout_final_link_info
*, bfd
*input_bfd
,
3425 asection
*input_section
, struct reloc_std_external
*,
3426 bfd_size_type rel_size
, bfd_byte
*contents
));
3427 static boolean aout_link_input_section_ext
3428 PARAMS ((struct aout_final_link_info
*, bfd
*input_bfd
,
3429 asection
*input_section
, struct reloc_ext_external
*,
3430 bfd_size_type rel_size
, bfd_byte
*contents
));
3431 static INLINE asection
*aout_reloc_index_to_section
3432 PARAMS ((bfd
*, int));
3433 static boolean aout_link_reloc_link_order
3434 PARAMS ((struct aout_final_link_info
*, asection
*,
3435 struct bfd_link_order
*));
3437 /* Do the final link step. This is called on the output BFD. The
3438 INFO structure should point to a list of BFDs linked through the
3439 link_next field which can be used to find each BFD which takes part
3440 in the output. Also, each section in ABFD should point to a list
3441 of bfd_link_order structures which list all the input sections for
3442 the output section. */
3445 NAME(aout
,final_link
) (abfd
, info
, callback
)
3447 struct bfd_link_info
*info
;
3448 void (*callback
) PARAMS ((bfd
*, file_ptr
*, file_ptr
*, file_ptr
*));
3450 struct aout_final_link_info aout_info
;
3452 bfd_size_type trsize
, drsize
;
3453 size_t max_contents_size
;
3454 size_t max_relocs_size
;
3455 size_t max_sym_count
;
3456 bfd_size_type text_size
;
3458 register struct bfd_link_order
*p
;
3460 boolean have_link_order_relocs
;
3463 abfd
->flags
|= DYNAMIC
;
3465 aout_info
.info
= info
;
3466 aout_info
.output_bfd
= abfd
;
3467 aout_info
.contents
= NULL
;
3468 aout_info
.relocs
= NULL
;
3470 /* Figure out the largest section size. Also, if generating
3471 relocateable output, count the relocs. */
3474 max_contents_size
= 0;
3475 max_relocs_size
= 0;
3477 for (sub
= info
->input_bfds
; sub
!= NULL
; sub
= sub
->link_next
)
3481 if (info
->relocateable
)
3483 if (bfd_get_flavour (sub
) == bfd_target_aout_flavour
)
3485 trsize
+= exec_hdr (sub
)->a_trsize
;
3486 drsize
+= exec_hdr (sub
)->a_drsize
;
3490 /* FIXME: We need to identify the .text and .data sections
3491 and call get_reloc_upper_bound and canonicalize_reloc to
3492 work out the number of relocs needed, and then multiply
3493 by the reloc size. */
3494 (*_bfd_error_handler
)
3495 ("%s: relocateable link from %s to %s not supported",
3496 bfd_get_filename (abfd
),
3497 sub
->xvec
->name
, abfd
->xvec
->name
);
3498 bfd_set_error (bfd_error_invalid_operation
);
3503 if (bfd_get_flavour (sub
) == bfd_target_aout_flavour
)
3505 sz
= bfd_section_size (sub
, obj_textsec (sub
));
3506 if (sz
> max_contents_size
)
3507 max_contents_size
= sz
;
3508 sz
= bfd_section_size (sub
, obj_datasec (sub
));
3509 if (sz
> max_contents_size
)
3510 max_contents_size
= sz
;
3512 sz
= exec_hdr (sub
)->a_trsize
;
3513 if (sz
> max_relocs_size
)
3514 max_relocs_size
= sz
;
3515 sz
= exec_hdr (sub
)->a_drsize
;
3516 if (sz
> max_relocs_size
)
3517 max_relocs_size
= sz
;
3519 sz
= obj_aout_external_sym_count (sub
);
3520 if (sz
> max_sym_count
)
3525 if (info
->relocateable
)
3527 if (obj_textsec (abfd
) != (asection
*) NULL
)
3528 trsize
+= (_bfd_count_link_order_relocs (obj_textsec (abfd
)
3530 * obj_reloc_entry_size (abfd
));
3531 if (obj_datasec (abfd
) != (asection
*) NULL
)
3532 drsize
+= (_bfd_count_link_order_relocs (obj_datasec (abfd
)
3534 * obj_reloc_entry_size (abfd
));
3537 exec_hdr (abfd
)->a_trsize
= trsize
;
3538 exec_hdr (abfd
)->a_drsize
= drsize
;
3540 exec_hdr (abfd
)->a_entry
= bfd_get_start_address (abfd
);
3542 /* Adjust the section sizes and vmas according to the magic number.
3543 This sets a_text, a_data and a_bss in the exec_hdr and sets the
3544 filepos for each section. */
3545 if (! NAME(aout
,adjust_sizes_and_vmas
) (abfd
, &text_size
, &text_end
))
3548 /* The relocation and symbol file positions differ among a.out
3549 targets. We are passed a callback routine from the backend
3550 specific code to handle this.
3551 FIXME: At this point we do not know how much space the symbol
3552 table will require. This will not work for any (nonstandard)
3553 a.out target that needs to know the symbol table size before it
3554 can compute the relocation file positions. This may or may not
3555 be the case for the hp300hpux target, for example. */
3556 (*callback
) (abfd
, &aout_info
.treloff
, &aout_info
.dreloff
,
3558 obj_textsec (abfd
)->rel_filepos
= aout_info
.treloff
;
3559 obj_datasec (abfd
)->rel_filepos
= aout_info
.dreloff
;
3560 obj_sym_filepos (abfd
) = aout_info
.symoff
;
3562 /* We keep a count of the symbols as we output them. */
3563 obj_aout_external_sym_count (abfd
) = 0;
3565 /* We accumulate the string table as we write out the symbols. */
3566 aout_info
.strtab
= _bfd_stringtab_init ();
3567 if (aout_info
.strtab
== NULL
)
3570 /* Allocate buffers to hold section contents and relocs. */
3571 aout_info
.contents
= (bfd_byte
*) malloc (max_contents_size
);
3572 aout_info
.relocs
= (PTR
) malloc (max_relocs_size
);
3573 aout_info
.symbol_map
= (int *) malloc (max_sym_count
* sizeof (int *));
3574 aout_info
.output_syms
= ((struct external_nlist
*)
3575 malloc ((max_sym_count
+ 1)
3576 * sizeof (struct external_nlist
)));
3577 if ((aout_info
.contents
== NULL
&& max_contents_size
!= 0)
3578 || (aout_info
.relocs
== NULL
&& max_relocs_size
!= 0)
3579 || (aout_info
.symbol_map
== NULL
&& max_sym_count
!= 0)
3580 || aout_info
.output_syms
== NULL
)
3582 bfd_set_error (bfd_error_no_memory
);
3586 /* If we have a symbol named __DYNAMIC, force it out now. This is
3587 required by SunOS. Doing this here rather than in sunos.c is a
3588 hack, but it's easier than exporting everything which would be
3591 struct aout_link_hash_entry
*h
;
3593 h
= aout_link_hash_lookup (aout_hash_table (info
), "__DYNAMIC",
3594 false, false, false);
3596 aout_link_write_other_symbol (h
, &aout_info
);
3599 /* The most time efficient way to do the link would be to read all
3600 the input object files into memory and then sort out the
3601 information into the output file. Unfortunately, that will
3602 probably use too much memory. Another method would be to step
3603 through everything that composes the text section and write it
3604 out, and then everything that composes the data section and write
3605 it out, and then write out the relocs, and then write out the
3606 symbols. Unfortunately, that requires reading stuff from each
3607 input file several times, and we will not be able to keep all the
3608 input files open simultaneously, and reopening them will be slow.
3610 What we do is basically process one input file at a time. We do
3611 everything we need to do with an input file once--copy over the
3612 section contents, handle the relocation information, and write
3613 out the symbols--and then we throw away the information we read
3614 from it. This approach requires a lot of lseeks of the output
3615 file, which is unfortunate but still faster than reopening a lot
3618 We use the output_has_begun field of the input BFDs to see
3619 whether we have already handled it. */
3620 for (sub
= info
->input_bfds
; sub
!= (bfd
*) NULL
; sub
= sub
->link_next
)
3621 sub
->output_has_begun
= false;
3623 have_link_order_relocs
= false;
3624 for (o
= abfd
->sections
; o
!= (asection
*) NULL
; o
= o
->next
)
3626 for (p
= o
->link_order_head
;
3627 p
!= (struct bfd_link_order
*) NULL
;
3630 if (p
->type
== bfd_indirect_link_order
3631 && (bfd_get_flavour (p
->u
.indirect
.section
->owner
)
3632 == bfd_target_aout_flavour
))
3636 input_bfd
= p
->u
.indirect
.section
->owner
;
3637 if (! input_bfd
->output_has_begun
)
3639 if (! aout_link_input_bfd (&aout_info
, input_bfd
))
3641 input_bfd
->output_has_begun
= true;
3644 else if (p
->type
== bfd_section_reloc_link_order
3645 || p
->type
== bfd_symbol_reloc_link_order
)
3647 /* These are handled below. */
3648 have_link_order_relocs
= true;
3652 if (! _bfd_default_link_order (abfd
, info
, o
, p
))
3658 /* Write out any symbols that we have not already written out. */
3659 aout_link_hash_traverse (aout_hash_table (info
),
3660 aout_link_write_other_symbol
,
3663 /* Now handle any relocs we were asked to create by the linker.
3664 These did not come from any input file. We must do these after
3665 we have written out all the symbols, so that we know the symbol
3667 if (have_link_order_relocs
)
3669 for (o
= abfd
->sections
; o
!= (asection
*) NULL
; o
= o
->next
)
3671 for (p
= o
->link_order_head
;
3672 p
!= (struct bfd_link_order
*) NULL
;
3675 if (p
->type
== bfd_section_reloc_link_order
3676 || p
->type
== bfd_symbol_reloc_link_order
)
3678 if (! aout_link_reloc_link_order (&aout_info
, o
, p
))
3685 if (aout_info
.contents
!= NULL
)
3687 free (aout_info
.contents
);
3688 aout_info
.contents
= NULL
;
3690 if (aout_info
.relocs
!= NULL
)
3692 free (aout_info
.relocs
);
3693 aout_info
.relocs
= NULL
;
3695 if (aout_info
.symbol_map
!= NULL
)
3697 free (aout_info
.symbol_map
);
3698 aout_info
.symbol_map
= NULL
;
3700 if (aout_info
.output_syms
!= NULL
)
3702 free (aout_info
.output_syms
);
3703 aout_info
.output_syms
= NULL
;
3706 /* Finish up any dynamic linking we may be doing. */
3707 if (aout_backend_info (abfd
)->finish_dynamic_link
!= NULL
)
3709 if (! (*aout_backend_info (abfd
)->finish_dynamic_link
) (abfd
, info
))
3713 /* Update the header information. */
3714 abfd
->symcount
= obj_aout_external_sym_count (abfd
);
3715 exec_hdr (abfd
)->a_syms
= abfd
->symcount
* EXTERNAL_NLIST_SIZE
;
3716 obj_str_filepos (abfd
) = obj_sym_filepos (abfd
) + exec_hdr (abfd
)->a_syms
;
3717 obj_textsec (abfd
)->reloc_count
=
3718 exec_hdr (abfd
)->a_trsize
/ obj_reloc_entry_size (abfd
);
3719 obj_datasec (abfd
)->reloc_count
=
3720 exec_hdr (abfd
)->a_drsize
/ obj_reloc_entry_size (abfd
);
3722 /* Write out the string table. */
3723 if (bfd_seek (abfd
, obj_str_filepos (abfd
), SEEK_SET
) != 0)
3725 return emit_stringtab (abfd
, aout_info
.strtab
);
3728 if (aout_info
.contents
!= NULL
)
3729 free (aout_info
.contents
);
3730 if (aout_info
.relocs
!= NULL
)
3731 free (aout_info
.relocs
);
3732 if (aout_info
.symbol_map
!= NULL
)
3733 free (aout_info
.symbol_map
);
3734 if (aout_info
.output_syms
!= NULL
)
3735 free (aout_info
.output_syms
);
3739 /* Link an a.out input BFD into the output file. */
3742 aout_link_input_bfd (finfo
, input_bfd
)
3743 struct aout_final_link_info
*finfo
;
3746 bfd_size_type sym_count
;
3748 BFD_ASSERT (bfd_get_format (input_bfd
) == bfd_object
);
3750 /* If this is a dynamic object, it may need special handling. */
3751 if ((input_bfd
->flags
& DYNAMIC
) != 0
3752 && aout_backend_info (input_bfd
)->link_dynamic_object
!= NULL
)
3754 return ((*aout_backend_info (input_bfd
)->link_dynamic_object
)
3755 (finfo
->info
, input_bfd
));
3758 /* Get the symbols. We probably have them already, unless
3759 finfo->info->keep_memory is false. */
3760 if (! aout_get_external_symbols (input_bfd
))
3763 sym_count
= obj_aout_external_sym_count (input_bfd
);
3765 /* Write out the symbols and get a map of the new indices. The map
3766 is placed into finfo->symbol_map. */
3767 if (! aout_link_write_symbols (finfo
, input_bfd
))
3770 /* Relocate and write out the sections. These functions use the
3771 symbol map created by aout_link_write_symbols. */
3772 if (! aout_link_input_section (finfo
, input_bfd
,
3773 obj_textsec (input_bfd
),
3775 exec_hdr (input_bfd
)->a_trsize
)
3776 || ! aout_link_input_section (finfo
, input_bfd
,
3777 obj_datasec (input_bfd
),
3779 exec_hdr (input_bfd
)->a_drsize
))
3782 /* If we are not keeping memory, we don't need the symbols any
3783 longer. We still need them if we are keeping memory, because the
3784 strings in the hash table point into them. */
3785 if (! finfo
->info
->keep_memory
)
3787 if (! aout_link_free_symbols (input_bfd
))
3794 /* Adjust and write out the symbols for an a.out file. Set the new
3795 symbol indices into a symbol_map. */
3798 aout_link_write_symbols (finfo
, input_bfd
)
3799 struct aout_final_link_info
*finfo
;
3803 bfd_size_type sym_count
;
3805 enum bfd_link_strip strip
;
3806 enum bfd_link_discard discard
;
3807 struct external_nlist
*outsym
;
3808 bfd_size_type strtab_index
;
3809 register struct external_nlist
*sym
;
3810 struct external_nlist
*sym_end
;
3811 struct aout_link_hash_entry
**sym_hash
;
3816 output_bfd
= finfo
->output_bfd
;
3817 sym_count
= obj_aout_external_sym_count (input_bfd
);
3818 strings
= obj_aout_external_strings (input_bfd
);
3819 strip
= finfo
->info
->strip
;
3820 discard
= finfo
->info
->discard
;
3821 outsym
= finfo
->output_syms
;
3823 /* First write out a symbol for this object file, unless we are
3824 discarding such symbols. */
3825 if (strip
!= strip_all
3826 && (strip
!= strip_some
3827 || bfd_hash_lookup (finfo
->info
->keep_hash
, input_bfd
->filename
,
3828 false, false) != NULL
)
3829 && discard
!= discard_all
)
3831 bfd_h_put_8 (output_bfd
, N_TEXT
, outsym
->e_type
);
3832 bfd_h_put_8 (output_bfd
, 0, outsym
->e_other
);
3833 bfd_h_put_16 (output_bfd
, (bfd_vma
) 0, outsym
->e_desc
);
3834 strtab_index
= add_to_stringtab (output_bfd
, finfo
->strtab
,
3835 input_bfd
->filename
, false);
3836 if (strtab_index
== (bfd_size_type
) -1)
3838 PUT_WORD (output_bfd
, strtab_index
, outsym
->e_strx
);
3839 PUT_WORD (output_bfd
,
3840 (bfd_get_section_vma (output_bfd
,
3841 obj_textsec (input_bfd
)->output_section
)
3842 + obj_textsec (input_bfd
)->output_offset
),
3844 ++obj_aout_external_sym_count (output_bfd
);
3850 sym
= obj_aout_external_syms (input_bfd
);
3851 sym_end
= sym
+ sym_count
;
3852 sym_hash
= obj_aout_sym_hashes (input_bfd
);
3853 symbol_map
= finfo
->symbol_map
;
3854 for (; sym
< sym_end
; sym
++, sym_hash
++, symbol_map
++)
3858 struct aout_link_hash_entry
*h
;
3866 type
= bfd_h_get_8 (input_bfd
, sym
->e_type
);
3867 name
= strings
+ GET_WORD (input_bfd
, sym
->e_strx
);
3873 /* Pass this symbol through. It is the target of an
3874 indirect or warning symbol. */
3875 val
= GET_WORD (input_bfd
, sym
->e_value
);
3880 /* Skip this symbol, which is the target of an indirect
3881 symbol that we have changed to no longer be an indirect
3888 struct aout_link_hash_entry
*hresolve
;
3890 /* We have saved the hash table entry for this symbol, if
3891 there is one. Note that we could just look it up again
3892 in the hash table, provided we first check that it is an
3896 /* If this is an indirect or warning symbol, then change
3897 hresolve to the base symbol. We also change *sym_hash so
3898 that the relocation routines relocate against the real
3901 if (h
!= (struct aout_link_hash_entry
*) NULL
3902 && (h
->root
.type
== bfd_link_hash_indirect
3903 || h
->root
.type
== bfd_link_hash_warning
))
3905 hresolve
= (struct aout_link_hash_entry
*) h
->root
.u
.i
.link
;
3906 while (hresolve
->root
.type
== bfd_link_hash_indirect
3907 || hresolve
->root
.type
== bfd_link_hash_warning
)
3908 hresolve
= ((struct aout_link_hash_entry
*)
3909 hresolve
->root
.u
.i
.link
);
3910 *sym_hash
= hresolve
;
3913 /* If the symbol has already been written out, skip it. */
3914 if (h
!= (struct aout_link_hash_entry
*) NULL
3915 && h
->root
.type
!= bfd_link_hash_warning
3918 if ((type
& N_TYPE
) == N_INDR
3919 || type
== N_WARNING
)
3921 *symbol_map
= h
->indx
;
3925 /* See if we are stripping this symbol. */
3931 case strip_debugger
:
3932 if ((type
& N_STAB
) != 0)
3936 if (bfd_hash_lookup (finfo
->info
->keep_hash
, name
, false, false)
3946 if (h
!= (struct aout_link_hash_entry
*) NULL
)
3951 /* Get the value of the symbol. */
3952 if ((type
& N_TYPE
) == N_TEXT
3954 symsec
= obj_textsec (input_bfd
);
3955 else if ((type
& N_TYPE
) == N_DATA
3957 symsec
= obj_datasec (input_bfd
);
3958 else if ((type
& N_TYPE
) == N_BSS
3960 symsec
= obj_bsssec (input_bfd
);
3961 else if ((type
& N_TYPE
) == N_ABS
3963 symsec
= bfd_abs_section_ptr
;
3964 else if (((type
& N_TYPE
) == N_INDR
3965 && (hresolve
== (struct aout_link_hash_entry
*) NULL
3966 || (hresolve
->root
.type
!= bfd_link_hash_defined
3967 && hresolve
->root
.type
!= bfd_link_hash_defweak
3968 && hresolve
->root
.type
!= bfd_link_hash_common
)))
3969 || type
== N_WARNING
)
3971 /* Pass the next symbol through unchanged. The
3972 condition above for indirect symbols is so that if
3973 the indirect symbol was defined, we output it with
3974 the correct definition so the debugger will
3977 val
= GET_WORD (input_bfd
, sym
->e_value
);
3980 else if ((type
& N_STAB
) != 0)
3982 val
= GET_WORD (input_bfd
, sym
->e_value
);
3987 /* If we get here with an indirect symbol, it means that
3988 we are outputting it with a real definition. In such
3989 a case we do not want to output the next symbol,
3990 which is the target of the indirection. */
3991 if ((type
& N_TYPE
) == N_INDR
)
3996 /* We need to get the value from the hash table. We use
3997 hresolve so that if we have defined an indirect
3998 symbol we output the final definition. */
3999 if (h
== (struct aout_link_hash_entry
*) NULL
)
4001 switch (type
& N_TYPE
)
4004 symsec
= obj_textsec (input_bfd
);
4007 symsec
= obj_datasec (input_bfd
);
4010 symsec
= obj_bsssec (input_bfd
);
4013 symsec
= bfd_abs_section_ptr
;
4020 else if (hresolve
->root
.type
== bfd_link_hash_defined
4021 || hresolve
->root
.type
== bfd_link_hash_defweak
)
4023 asection
*input_section
;
4024 asection
*output_section
;
4026 /* This case usually means a common symbol which was
4027 turned into a defined symbol. */
4028 input_section
= hresolve
->root
.u
.def
.section
;
4029 output_section
= input_section
->output_section
;
4030 BFD_ASSERT (bfd_is_abs_section (output_section
)
4031 || output_section
->owner
== output_bfd
);
4032 val
= (hresolve
->root
.u
.def
.value
4033 + bfd_get_section_vma (output_bfd
, output_section
)
4034 + input_section
->output_offset
);
4036 /* Get the correct type based on the section. If
4037 this is a constructed set, force it to be
4038 globally visible. */
4047 if (output_section
== obj_textsec (output_bfd
))
4048 type
|= (hresolve
->root
.type
== bfd_link_hash_defined
4051 else if (output_section
== obj_datasec (output_bfd
))
4052 type
|= (hresolve
->root
.type
== bfd_link_hash_defined
4055 else if (output_section
== obj_bsssec (output_bfd
))
4056 type
|= (hresolve
->root
.type
== bfd_link_hash_defined
4060 type
|= (hresolve
->root
.type
== bfd_link_hash_defined
4064 else if (hresolve
->root
.type
== bfd_link_hash_common
)
4065 val
= hresolve
->root
.u
.c
.size
;
4066 else if (hresolve
->root
.type
== bfd_link_hash_undefweak
)
4074 if (symsec
!= (asection
*) NULL
)
4075 val
= (symsec
->output_section
->vma
4076 + symsec
->output_offset
4077 + (GET_WORD (input_bfd
, sym
->e_value
)
4080 /* If this is a global symbol set the written flag, and if
4081 it is a local symbol see if we should discard it. */
4082 if (h
!= (struct aout_link_hash_entry
*) NULL
)
4085 h
->indx
= obj_aout_external_sym_count (output_bfd
);
4087 else if ((type
& N_TYPE
) != N_SETT
4088 && (type
& N_TYPE
) != N_SETD
4089 && (type
& N_TYPE
) != N_SETB
4090 && (type
& N_TYPE
) != N_SETA
)
4097 if (*name
== *finfo
->info
->lprefix
4098 && (finfo
->info
->lprefix_len
== 1
4099 || strncmp (name
, finfo
->info
->lprefix
,
4100 finfo
->info
->lprefix_len
) == 0))
4115 /* Copy this symbol into the list of symbols we are going to
4117 bfd_h_put_8 (output_bfd
, type
, outsym
->e_type
);
4118 bfd_h_put_8 (output_bfd
, bfd_h_get_8 (input_bfd
, sym
->e_other
),
4120 bfd_h_put_16 (output_bfd
, bfd_h_get_16 (input_bfd
, sym
->e_desc
),
4123 if (! finfo
->info
->keep_memory
)
4125 /* name points into a string table which we are going to
4126 free. If there is a hash table entry, use that string.
4127 Otherwise, copy name into memory. */
4128 if (h
!= (struct aout_link_hash_entry
*) NULL
)
4129 name
= h
->root
.root
.string
;
4133 strtab_index
= add_to_stringtab (output_bfd
, finfo
->strtab
,
4135 if (strtab_index
== (bfd_size_type
) -1)
4137 PUT_WORD (output_bfd
, strtab_index
, outsym
->e_strx
);
4138 PUT_WORD (output_bfd
, val
, outsym
->e_value
);
4139 *symbol_map
= obj_aout_external_sym_count (output_bfd
);
4140 ++obj_aout_external_sym_count (output_bfd
);
4144 /* Write out the output symbols we have just constructed. */
4145 if (outsym
> finfo
->output_syms
)
4147 bfd_size_type outsym_count
;
4149 if (bfd_seek (output_bfd
, finfo
->symoff
, SEEK_SET
) != 0)
4151 outsym_count
= outsym
- finfo
->output_syms
;
4152 if (bfd_write ((PTR
) finfo
->output_syms
,
4153 (bfd_size_type
) EXTERNAL_NLIST_SIZE
,
4154 (bfd_size_type
) outsym_count
, output_bfd
)
4155 != outsym_count
* EXTERNAL_NLIST_SIZE
)
4157 finfo
->symoff
+= outsym_count
* EXTERNAL_NLIST_SIZE
;
4163 /* Write out a symbol that was not associated with an a.out input
4167 aout_link_write_other_symbol (h
, data
)
4168 struct aout_link_hash_entry
*h
;
4171 struct aout_final_link_info
*finfo
= (struct aout_final_link_info
*) data
;
4175 struct external_nlist outsym
;
4178 output_bfd
= finfo
->output_bfd
;
4180 if (aout_backend_info (output_bfd
)->write_dynamic_symbol
!= NULL
)
4182 if (! ((*aout_backend_info (output_bfd
)->write_dynamic_symbol
)
4183 (output_bfd
, finfo
->info
, h
)))
4185 /* FIXME: No way to handle errors. */
4195 /* An indx of -2 means the symbol must be written. */
4197 && (finfo
->info
->strip
== strip_all
4198 || (finfo
->info
->strip
== strip_some
4199 && bfd_hash_lookup (finfo
->info
->keep_hash
, h
->root
.root
.string
,
4200 false, false) == NULL
)))
4203 switch (h
->root
.type
)
4207 /* Avoid variable not initialized warnings. */
4209 case bfd_link_hash_new
:
4210 /* This can happen for set symbols when sets are not being
4213 case bfd_link_hash_undefined
:
4214 type
= N_UNDF
| N_EXT
;
4217 case bfd_link_hash_defined
:
4218 case bfd_link_hash_defweak
:
4222 sec
= h
->root
.u
.def
.section
->output_section
;
4223 BFD_ASSERT (bfd_is_abs_section (sec
)
4224 || sec
->owner
== output_bfd
);
4225 if (sec
== obj_textsec (output_bfd
))
4226 type
= h
->root
.type
== bfd_link_hash_defined
? N_TEXT
: N_WEAKT
;
4227 else if (sec
== obj_datasec (output_bfd
))
4228 type
= h
->root
.type
== bfd_link_hash_defined
? N_DATA
: N_WEAKD
;
4229 else if (sec
== obj_bsssec (output_bfd
))
4230 type
= h
->root
.type
== bfd_link_hash_defined
? N_BSS
: N_WEAKB
;
4232 type
= h
->root
.type
== bfd_link_hash_defined
? N_ABS
: N_WEAKA
;
4234 val
= (h
->root
.u
.def
.value
4236 + h
->root
.u
.def
.section
->output_offset
);
4239 case bfd_link_hash_common
:
4240 type
= N_UNDF
| N_EXT
;
4241 val
= h
->root
.u
.c
.size
;
4243 case bfd_link_hash_undefweak
:
4246 case bfd_link_hash_indirect
:
4247 case bfd_link_hash_warning
:
4248 /* FIXME: Ignore these for now. The circumstances under which
4249 they should be written out are not clear to me. */
4253 bfd_h_put_8 (output_bfd
, type
, outsym
.e_type
);
4254 bfd_h_put_8 (output_bfd
, 0, outsym
.e_other
);
4255 bfd_h_put_16 (output_bfd
, 0, outsym
.e_desc
);
4256 indx
= add_to_stringtab (output_bfd
, finfo
->strtab
, h
->root
.root
.string
,
4258 if (indx
== (bfd_size_type
) -1)
4260 /* FIXME: No way to handle errors. */
4263 PUT_WORD (output_bfd
, indx
, outsym
.e_strx
);
4264 PUT_WORD (output_bfd
, val
, outsym
.e_value
);
4266 if (bfd_seek (output_bfd
, finfo
->symoff
, SEEK_SET
) != 0
4267 || bfd_write ((PTR
) &outsym
, (bfd_size_type
) EXTERNAL_NLIST_SIZE
,
4268 (bfd_size_type
) 1, output_bfd
) != EXTERNAL_NLIST_SIZE
)
4270 /* FIXME: No way to handle errors. */
4274 finfo
->symoff
+= EXTERNAL_NLIST_SIZE
;
4275 h
->indx
= obj_aout_external_sym_count (output_bfd
);
4276 ++obj_aout_external_sym_count (output_bfd
);
4281 /* Link an a.out section into the output file. */
4284 aout_link_input_section (finfo
, input_bfd
, input_section
, reloff_ptr
,
4286 struct aout_final_link_info
*finfo
;
4288 asection
*input_section
;
4289 file_ptr
*reloff_ptr
;
4290 bfd_size_type rel_size
;
4292 bfd_size_type input_size
;
4295 /* Get the section contents. */
4296 input_size
= bfd_section_size (input_bfd
, input_section
);
4297 if (! bfd_get_section_contents (input_bfd
, input_section
,
4298 (PTR
) finfo
->contents
,
4299 (file_ptr
) 0, input_size
))
4302 /* Read in the relocs if we haven't already done it. */
4303 if (aout_section_data (input_section
) != NULL
4304 && aout_section_data (input_section
)->relocs
!= NULL
)
4305 relocs
= aout_section_data (input_section
)->relocs
;
4308 relocs
= finfo
->relocs
;
4311 if (bfd_seek (input_bfd
, input_section
->rel_filepos
, SEEK_SET
) != 0
4312 || bfd_read (relocs
, 1, rel_size
, input_bfd
) != rel_size
)
4317 /* Relocate the section contents. */
4318 if (obj_reloc_entry_size (input_bfd
) == RELOC_STD_SIZE
)
4320 if (! aout_link_input_section_std (finfo
, input_bfd
, input_section
,
4321 (struct reloc_std_external
*) relocs
,
4322 rel_size
, finfo
->contents
))
4327 if (! aout_link_input_section_ext (finfo
, input_bfd
, input_section
,
4328 (struct reloc_ext_external
*) relocs
,
4329 rel_size
, finfo
->contents
))
4333 /* Write out the section contents. */
4334 if (! bfd_set_section_contents (finfo
->output_bfd
,
4335 input_section
->output_section
,
4336 (PTR
) finfo
->contents
,
4337 input_section
->output_offset
,
4341 /* If we are producing relocateable output, the relocs were
4342 modified, and we now write them out. */
4343 if (finfo
->info
->relocateable
&& rel_size
> 0)
4345 if (bfd_seek (finfo
->output_bfd
, *reloff_ptr
, SEEK_SET
) != 0)
4347 if (bfd_write (relocs
, (bfd_size_type
) 1, rel_size
, finfo
->output_bfd
)
4350 *reloff_ptr
+= rel_size
;
4352 /* Assert that the relocs have not run into the symbols, and
4353 that if these are the text relocs they have not run into the
4355 BFD_ASSERT (*reloff_ptr
<= obj_sym_filepos (finfo
->output_bfd
)
4356 && (reloff_ptr
!= &finfo
->treloff
4358 <= obj_datasec (finfo
->output_bfd
)->rel_filepos
)));
4364 /* Get the section corresponding to a reloc index. */
4366 static INLINE asection
*
4367 aout_reloc_index_to_section (abfd
, indx
)
4371 switch (indx
& N_TYPE
)
4374 return obj_textsec (abfd
);
4376 return obj_datasec (abfd
);
4378 return obj_bsssec (abfd
);
4381 return bfd_abs_section_ptr
;
4387 /* Relocate an a.out section using standard a.out relocs. */
4390 aout_link_input_section_std (finfo
, input_bfd
, input_section
, relocs
,
4392 struct aout_final_link_info
*finfo
;
4394 asection
*input_section
;
4395 struct reloc_std_external
*relocs
;
4396 bfd_size_type rel_size
;
4399 boolean (*check_dynamic_reloc
) PARAMS ((struct bfd_link_info
*,
4401 struct aout_link_hash_entry
*,
4402 PTR
, bfd_byte
*, boolean
*,
4405 boolean relocateable
;
4406 struct external_nlist
*syms
;
4408 struct aout_link_hash_entry
**sym_hashes
;
4410 bfd_size_type reloc_count
;
4411 register struct reloc_std_external
*rel
;
4412 struct reloc_std_external
*rel_end
;
4414 output_bfd
= finfo
->output_bfd
;
4415 check_dynamic_reloc
= aout_backend_info (output_bfd
)->check_dynamic_reloc
;
4417 BFD_ASSERT (obj_reloc_entry_size (input_bfd
) == RELOC_STD_SIZE
);
4418 BFD_ASSERT (input_bfd
->xvec
->header_byteorder_big_p
4419 == output_bfd
->xvec
->header_byteorder_big_p
);
4421 relocateable
= finfo
->info
->relocateable
;
4422 syms
= obj_aout_external_syms (input_bfd
);
4423 strings
= obj_aout_external_strings (input_bfd
);
4424 sym_hashes
= obj_aout_sym_hashes (input_bfd
);
4425 symbol_map
= finfo
->symbol_map
;
4427 reloc_count
= rel_size
/ RELOC_STD_SIZE
;
4429 rel_end
= rel
+ reloc_count
;
4430 for (; rel
< rel_end
; rel
++)
4437 reloc_howto_type
*howto
;
4438 struct aout_link_hash_entry
*h
= NULL
;
4440 bfd_reloc_status_type r
;
4442 r_addr
= GET_SWORD (input_bfd
, rel
->r_address
);
4444 #ifdef MY_reloc_howto
4445 howto
= MY_reloc_howto(input_bfd
, rel
, r_index
, r_extern
, r_pcrel
);
4451 unsigned int howto_idx
;
4453 if (input_bfd
->xvec
->header_byteorder_big_p
)
4455 r_index
= ((rel
->r_index
[0] << 16)
4456 | (rel
->r_index
[1] << 8)
4458 r_extern
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_EXTERN_BIG
));
4459 r_pcrel
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_PCREL_BIG
));
4460 r_baserel
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_BASEREL_BIG
));
4461 r_jmptable
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_JMPTABLE_BIG
));
4462 r_relative
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_RELATIVE_BIG
));
4463 r_length
= ((rel
->r_type
[0] & RELOC_STD_BITS_LENGTH_BIG
)
4464 >> RELOC_STD_BITS_LENGTH_SH_BIG
);
4468 r_index
= ((rel
->r_index
[2] << 16)
4469 | (rel
->r_index
[1] << 8)
4471 r_extern
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_EXTERN_LITTLE
));
4472 r_pcrel
= (0 != (rel
->r_type
[0] & RELOC_STD_BITS_PCREL_LITTLE
));
4473 r_baserel
= (0 != (rel
->r_type
[0]
4474 & RELOC_STD_BITS_BASEREL_LITTLE
));
4475 r_jmptable
= (0 != (rel
->r_type
[0]
4476 & RELOC_STD_BITS_JMPTABLE_LITTLE
));
4477 r_relative
= (0 != (rel
->r_type
[0]
4478 & RELOC_STD_BITS_RELATIVE_LITTLE
));
4479 r_length
= ((rel
->r_type
[0] & RELOC_STD_BITS_LENGTH_LITTLE
)
4480 >> RELOC_STD_BITS_LENGTH_SH_LITTLE
);
4483 howto_idx
= (r_length
+ 4 * r_pcrel
+ 8 * r_baserel
4484 + 16 * r_jmptable
+ 32 * r_relative
);
4485 BFD_ASSERT (howto_idx
< TABLE_SIZE (howto_table_std
));
4486 howto
= howto_table_std
+ howto_idx
;
4492 /* We are generating a relocateable output file, and must
4493 modify the reloc accordingly. */
4496 /* If we know the symbol this relocation is against,
4497 convert it into a relocation against a section. This
4498 is what the native linker does. */
4499 h
= sym_hashes
[r_index
];
4500 if (h
!= (struct aout_link_hash_entry
*) NULL
4501 && (h
->root
.type
== bfd_link_hash_defined
4502 || h
->root
.type
== bfd_link_hash_defweak
))
4504 asection
*output_section
;
4506 /* Change the r_extern value. */
4507 if (output_bfd
->xvec
->header_byteorder_big_p
)
4508 rel
->r_type
[0] &=~ RELOC_STD_BITS_EXTERN_BIG
;
4510 rel
->r_type
[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE
;
4512 /* Compute a new r_index. */
4513 output_section
= h
->root
.u
.def
.section
->output_section
;
4514 if (output_section
== obj_textsec (output_bfd
))
4516 else if (output_section
== obj_datasec (output_bfd
))
4518 else if (output_section
== obj_bsssec (output_bfd
))
4523 /* Add the symbol value and the section VMA to the
4524 addend stored in the contents. */
4525 relocation
= (h
->root
.u
.def
.value
4526 + output_section
->vma
4527 + h
->root
.u
.def
.section
->output_offset
);
4531 /* We must change r_index according to the symbol
4533 r_index
= symbol_map
[r_index
];
4539 /* We decided to strip this symbol, but it
4540 turns out that we can't. Note that we
4541 lose the other and desc information here.
4542 I don't think that will ever matter for a
4548 if (! aout_link_write_other_symbol (h
,
4558 name
= strings
+ GET_WORD (input_bfd
,
4559 syms
[r_index
].e_strx
);
4560 if (! ((*finfo
->info
->callbacks
->unattached_reloc
)
4561 (finfo
->info
, name
, input_bfd
, input_section
,
4571 /* Write out the new r_index value. */
4572 if (output_bfd
->xvec
->header_byteorder_big_p
)
4574 rel
->r_index
[0] = r_index
>> 16;
4575 rel
->r_index
[1] = r_index
>> 8;
4576 rel
->r_index
[2] = r_index
;
4580 rel
->r_index
[2] = r_index
>> 16;
4581 rel
->r_index
[1] = r_index
>> 8;
4582 rel
->r_index
[0] = r_index
;
4589 /* This is a relocation against a section. We must
4590 adjust by the amount that the section moved. */
4591 section
= aout_reloc_index_to_section (input_bfd
, r_index
);
4592 relocation
= (section
->output_section
->vma
4593 + section
->output_offset
4597 /* Change the address of the relocation. */
4598 PUT_WORD (output_bfd
,
4599 r_addr
+ input_section
->output_offset
,
4602 /* Adjust a PC relative relocation by removing the reference
4603 to the original address in the section and including the
4604 reference to the new address. */
4606 relocation
-= (input_section
->output_section
->vma
4607 + input_section
->output_offset
4608 - input_section
->vma
);
4610 #ifdef MY_relocatable_reloc
4611 MY_relocatable_reloc (howto
, output_bfd
, rel
, relocation
, r_addr
);
4614 if (relocation
== 0)
4617 r
= MY_relocate_contents (howto
,
4618 input_bfd
, relocation
,
4625 /* We are generating an executable, and must do a full
4630 h
= sym_hashes
[r_index
];
4632 if (h
!= (struct aout_link_hash_entry
*) NULL
4633 && (h
->root
.type
== bfd_link_hash_defined
4634 || h
->root
.type
== bfd_link_hash_defweak
))
4636 relocation
= (h
->root
.u
.def
.value
4637 + h
->root
.u
.def
.section
->output_section
->vma
4638 + h
->root
.u
.def
.section
->output_offset
);
4640 else if (h
!= (struct aout_link_hash_entry
*) NULL
4641 && h
->root
.type
== bfd_link_hash_undefweak
)
4653 section
= aout_reloc_index_to_section (input_bfd
, r_index
);
4654 relocation
= (section
->output_section
->vma
4655 + section
->output_offset
4658 relocation
+= input_section
->vma
;
4661 if (check_dynamic_reloc
!= NULL
)
4665 if (! ((*check_dynamic_reloc
)
4666 (finfo
->info
, input_bfd
, input_section
, h
,
4667 (PTR
) rel
, contents
, &skip
, &relocation
)))
4673 /* Now warn if a global symbol is undefined. We could not
4674 do this earlier, because check_dynamic_reloc might want
4675 to skip this reloc. */
4676 if (hundef
&& ! finfo
->info
->shared
&& ! r_baserel
)
4680 name
= strings
+ GET_WORD (input_bfd
, syms
[r_index
].e_strx
);
4681 if (! ((*finfo
->info
->callbacks
->undefined_symbol
)
4682 (finfo
->info
, name
, input_bfd
, input_section
, r_addr
)))
4686 r
= MY_final_link_relocate (howto
,
4687 input_bfd
, input_section
,
4688 contents
, r_addr
, relocation
,
4692 if (r
!= bfd_reloc_ok
)
4697 case bfd_reloc_outofrange
:
4699 case bfd_reloc_overflow
:
4704 name
= strings
+ GET_WORD (input_bfd
,
4705 syms
[r_index
].e_strx
);
4710 s
= aout_reloc_index_to_section (input_bfd
, r_index
);
4711 name
= bfd_section_name (input_bfd
, s
);
4713 if (! ((*finfo
->info
->callbacks
->reloc_overflow
)
4714 (finfo
->info
, name
, howto
->name
,
4715 (bfd_vma
) 0, input_bfd
, input_section
, r_addr
)))
4726 /* Relocate an a.out section using extended a.out relocs. */
4729 aout_link_input_section_ext (finfo
, input_bfd
, input_section
, relocs
,
4731 struct aout_final_link_info
*finfo
;
4733 asection
*input_section
;
4734 struct reloc_ext_external
*relocs
;
4735 bfd_size_type rel_size
;
4738 boolean (*check_dynamic_reloc
) PARAMS ((struct bfd_link_info
*,
4740 struct aout_link_hash_entry
*,
4741 PTR
, bfd_byte
*, boolean
*,
4744 boolean relocateable
;
4745 struct external_nlist
*syms
;
4747 struct aout_link_hash_entry
**sym_hashes
;
4749 bfd_size_type reloc_count
;
4750 register struct reloc_ext_external
*rel
;
4751 struct reloc_ext_external
*rel_end
;
4753 output_bfd
= finfo
->output_bfd
;
4754 check_dynamic_reloc
= aout_backend_info (output_bfd
)->check_dynamic_reloc
;
4756 BFD_ASSERT (obj_reloc_entry_size (input_bfd
) == RELOC_EXT_SIZE
);
4757 BFD_ASSERT (input_bfd
->xvec
->header_byteorder_big_p
4758 == output_bfd
->xvec
->header_byteorder_big_p
);
4760 relocateable
= finfo
->info
->relocateable
;
4761 syms
= obj_aout_external_syms (input_bfd
);
4762 strings
= obj_aout_external_strings (input_bfd
);
4763 sym_hashes
= obj_aout_sym_hashes (input_bfd
);
4764 symbol_map
= finfo
->symbol_map
;
4766 reloc_count
= rel_size
/ RELOC_EXT_SIZE
;
4768 rel_end
= rel
+ reloc_count
;
4769 for (; rel
< rel_end
; rel
++)
4774 unsigned int r_type
;
4776 struct aout_link_hash_entry
*h
= NULL
;
4777 asection
*r_section
= NULL
;
4780 r_addr
= GET_SWORD (input_bfd
, rel
->r_address
);
4782 if (input_bfd
->xvec
->header_byteorder_big_p
)
4784 r_index
= ((rel
->r_index
[0] << 16)
4785 | (rel
->r_index
[1] << 8)
4787 r_extern
= (0 != (rel
->r_type
[0] & RELOC_EXT_BITS_EXTERN_BIG
));
4788 r_type
= ((rel
->r_type
[0] & RELOC_EXT_BITS_TYPE_BIG
)
4789 >> RELOC_EXT_BITS_TYPE_SH_BIG
);
4793 r_index
= ((rel
->r_index
[2] << 16)
4794 | (rel
->r_index
[1] << 8)
4796 r_extern
= (0 != (rel
->r_type
[0] & RELOC_EXT_BITS_EXTERN_LITTLE
));
4797 r_type
= ((rel
->r_type
[0] & RELOC_EXT_BITS_TYPE_LITTLE
)
4798 >> RELOC_EXT_BITS_TYPE_SH_LITTLE
);
4801 r_addend
= GET_SWORD (input_bfd
, rel
->r_addend
);
4803 BFD_ASSERT (r_type
< TABLE_SIZE (howto_table_ext
));
4807 /* We are generating a relocateable output file, and must
4808 modify the reloc accordingly. */
4811 /* If we know the symbol this relocation is against,
4812 convert it into a relocation against a section. This
4813 is what the native linker does. */
4814 h
= sym_hashes
[r_index
];
4815 if (h
!= (struct aout_link_hash_entry
*) NULL
4816 && (h
->root
.type
== bfd_link_hash_defined
4817 || h
->root
.type
== bfd_link_hash_defweak
))
4819 asection
*output_section
;
4821 /* Change the r_extern value. */
4822 if (output_bfd
->xvec
->header_byteorder_big_p
)
4823 rel
->r_type
[0] &=~ RELOC_EXT_BITS_EXTERN_BIG
;
4825 rel
->r_type
[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE
;
4827 /* Compute a new r_index. */
4828 output_section
= h
->root
.u
.def
.section
->output_section
;
4829 if (output_section
== obj_textsec (output_bfd
))
4831 else if (output_section
== obj_datasec (output_bfd
))
4833 else if (output_section
== obj_bsssec (output_bfd
))
4838 /* Add the symbol value and the section VMA to the
4840 relocation
= (h
->root
.u
.def
.value
4841 + output_section
->vma
4842 + h
->root
.u
.def
.section
->output_offset
);
4844 /* Now RELOCATION is the VMA of the final
4845 destination. If this is a PC relative reloc,
4846 then ADDEND is the negative of the source VMA.
4847 We want to set ADDEND to the difference between
4848 the destination VMA and the source VMA, which
4849 means we must adjust RELOCATION by the change in
4850 the source VMA. This is done below. */
4854 /* We must change r_index according to the symbol
4856 r_index
= symbol_map
[r_index
];
4862 /* We decided to strip this symbol, but it
4863 turns out that we can't. Note that we
4864 lose the other and desc information here.
4865 I don't think that will ever matter for a
4871 if (! aout_link_write_other_symbol (h
,
4881 name
= strings
+ GET_WORD (input_bfd
,
4882 syms
[r_index
].e_strx
);
4883 if (! ((*finfo
->info
->callbacks
->unattached_reloc
)
4884 (finfo
->info
, name
, input_bfd
, input_section
,
4893 /* If this is a PC relative reloc, then the addend
4894 is the negative of the source VMA. We must
4895 adjust it by the change in the source VMA. This
4899 /* Write out the new r_index value. */
4900 if (output_bfd
->xvec
->header_byteorder_big_p
)
4902 rel
->r_index
[0] = r_index
>> 16;
4903 rel
->r_index
[1] = r_index
>> 8;
4904 rel
->r_index
[2] = r_index
;
4908 rel
->r_index
[2] = r_index
>> 16;
4909 rel
->r_index
[1] = r_index
>> 8;
4910 rel
->r_index
[0] = r_index
;
4915 /* This is a relocation against a section. We must
4916 adjust by the amount that the section moved. */
4917 r_section
= aout_reloc_index_to_section (input_bfd
, r_index
);
4918 relocation
= (r_section
->output_section
->vma
4919 + r_section
->output_offset
4922 /* If this is a PC relative reloc, then the addend is
4923 the difference in VMA between the destination and the
4924 source. We have just adjusted for the change in VMA
4925 of the destination, so we must also adjust by the
4926 change in VMA of the source. This is done below. */
4929 /* As described above, we must always adjust a PC relative
4930 reloc by the change in VMA of the source. */
4931 if (howto_table_ext
[r_type
].pc_relative
)
4932 relocation
-= (input_section
->output_section
->vma
4933 + input_section
->output_offset
4934 - input_section
->vma
);
4936 /* Change the addend if necessary. */
4937 if (relocation
!= 0)
4938 PUT_WORD (output_bfd
, r_addend
+ relocation
, rel
->r_addend
);
4940 /* Change the address of the relocation. */
4941 PUT_WORD (output_bfd
,
4942 r_addr
+ input_section
->output_offset
,
4948 bfd_reloc_status_type r
;
4950 /* We are generating an executable, and must do a full
4955 h
= sym_hashes
[r_index
];
4957 if (h
!= (struct aout_link_hash_entry
*) NULL
4958 && (h
->root
.type
== bfd_link_hash_defined
4959 || h
->root
.type
== bfd_link_hash_defweak
))
4961 relocation
= (h
->root
.u
.def
.value
4962 + h
->root
.u
.def
.section
->output_section
->vma
4963 + h
->root
.u
.def
.section
->output_offset
);
4965 else if (h
!= (struct aout_link_hash_entry
*) NULL
4966 && h
->root
.type
== bfd_link_hash_undefweak
)
4974 else if (r_type
== RELOC_BASE10
4975 || r_type
== RELOC_BASE13
4976 || r_type
== RELOC_BASE22
)
4978 struct external_nlist
*sym
;
4981 /* For base relative relocs, r_index is always an index
4982 into the symbol table, even if r_extern is 0. */
4983 sym
= syms
+ r_index
;
4984 type
= bfd_h_get_8 (input_bfd
, sym
->e_type
);
4985 if ((type
& N_TYPE
) == N_TEXT
4987 r_section
= obj_textsec (input_bfd
);
4988 else if ((type
& N_TYPE
) == N_DATA
4990 r_section
= obj_datasec (input_bfd
);
4991 else if ((type
& N_TYPE
) == N_BSS
4993 r_section
= obj_bsssec (input_bfd
);
4994 else if ((type
& N_TYPE
) == N_ABS
4996 r_section
= bfd_abs_section_ptr
;
4999 relocation
= (r_section
->output_section
->vma
5000 + r_section
->output_offset
5001 + (GET_WORD (input_bfd
, sym
->e_value
)
5006 r_section
= aout_reloc_index_to_section (input_bfd
, r_index
);
5008 /* If this is a PC relative reloc, then R_ADDEND is the
5009 difference between the two vmas, or
5010 old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
5012 old_dest_sec == section->vma
5014 old_src_sec == input_section->vma
5016 old_src_off == r_addr
5018 _bfd_final_link_relocate expects RELOCATION +
5019 R_ADDEND to be the VMA of the destination minus
5020 r_addr (the minus r_addr is because this relocation
5021 is not pcrel_offset, which is a bit confusing and
5022 should, perhaps, be changed), or
5025 new_dest_sec == output_section->vma + output_offset
5026 We arrange for this to happen by setting RELOCATION to
5027 new_dest_sec + old_src_sec - old_dest_sec
5029 If this is not a PC relative reloc, then R_ADDEND is
5030 simply the VMA of the destination, so we set
5031 RELOCATION to the change in the destination VMA, or
5032 new_dest_sec - old_dest_sec
5034 relocation
= (r_section
->output_section
->vma
5035 + r_section
->output_offset
5037 if (howto_table_ext
[r_type
].pc_relative
)
5038 relocation
+= input_section
->vma
;
5041 if (check_dynamic_reloc
!= NULL
)
5045 if (! ((*check_dynamic_reloc
)
5046 (finfo
->info
, input_bfd
, input_section
, h
,
5047 (PTR
) rel
, contents
, &skip
, &relocation
)))
5053 /* Now warn if a global symbol is undefined. We could not
5054 do this earlier, because check_dynamic_reloc might want
5055 to skip this reloc. */
5057 && ! finfo
->info
->shared
5058 && r_type
!= RELOC_BASE10
5059 && r_type
!= RELOC_BASE13
5060 && r_type
!= RELOC_BASE22
)
5064 name
= strings
+ GET_WORD (input_bfd
, syms
[r_index
].e_strx
);
5065 if (! ((*finfo
->info
->callbacks
->undefined_symbol
)
5066 (finfo
->info
, name
, input_bfd
, input_section
, r_addr
)))
5070 r
= MY_final_link_relocate (howto_table_ext
+ r_type
,
5071 input_bfd
, input_section
,
5072 contents
, r_addr
, relocation
,
5074 if (r
!= bfd_reloc_ok
)
5079 case bfd_reloc_outofrange
:
5081 case bfd_reloc_overflow
:
5086 || r_type
== RELOC_BASE10
5087 || r_type
== RELOC_BASE13
5088 || r_type
== RELOC_BASE22
)
5089 name
= strings
+ GET_WORD (input_bfd
,
5090 syms
[r_index
].e_strx
);
5095 s
= aout_reloc_index_to_section (input_bfd
, r_index
);
5096 name
= bfd_section_name (input_bfd
, s
);
5098 if (! ((*finfo
->info
->callbacks
->reloc_overflow
)
5099 (finfo
->info
, name
, howto_table_ext
[r_type
].name
,
5100 r_addend
, input_bfd
, input_section
, r_addr
)))
5112 /* Handle a link order which is supposed to generate a reloc. */
5115 aout_link_reloc_link_order (finfo
, o
, p
)
5116 struct aout_final_link_info
*finfo
;
5118 struct bfd_link_order
*p
;
5120 struct bfd_link_order_reloc
*pr
;
5123 reloc_howto_type
*howto
;
5124 file_ptr
*reloff_ptr
;
5125 struct reloc_std_external srel
;
5126 struct reloc_ext_external erel
;
5131 if (p
->type
== bfd_section_reloc_link_order
)
5134 if (bfd_is_abs_section (pr
->u
.section
))
5135 r_index
= N_ABS
| N_EXT
;
5138 BFD_ASSERT (pr
->u
.section
->owner
== finfo
->output_bfd
);
5139 r_index
= pr
->u
.section
->target_index
;
5144 struct aout_link_hash_entry
*h
;
5146 BFD_ASSERT (p
->type
== bfd_symbol_reloc_link_order
);
5148 h
= aout_link_hash_lookup (aout_hash_table (finfo
->info
),
5149 pr
->u
.name
, false, false, true);
5150 if (h
!= (struct aout_link_hash_entry
*) NULL
5155 /* We decided to strip this symbol, but it turns out that we
5156 can't. Note that we lose the other and desc information
5157 here. I don't think that will ever matter for a global
5161 if (! aout_link_write_other_symbol (h
, (PTR
) finfo
))
5167 if (! ((*finfo
->info
->callbacks
->unattached_reloc
)
5168 (finfo
->info
, pr
->u
.name
, (bfd
*) NULL
,
5169 (asection
*) NULL
, (bfd_vma
) 0)))
5175 howto
= bfd_reloc_type_lookup (finfo
->output_bfd
, pr
->reloc
);
5178 bfd_set_error (bfd_error_bad_value
);
5182 if (o
== obj_textsec (finfo
->output_bfd
))
5183 reloff_ptr
= &finfo
->treloff
;
5184 else if (o
== obj_datasec (finfo
->output_bfd
))
5185 reloff_ptr
= &finfo
->dreloff
;
5189 if (obj_reloc_entry_size (finfo
->output_bfd
) == RELOC_STD_SIZE
)
5192 MY_put_reloc(finfo
->output_bfd
, r_extern
, r_index
, p
->offset
, howto
,
5202 r_pcrel
= howto
->pc_relative
;
5203 r_baserel
= (howto
->type
& 8) != 0;
5204 r_jmptable
= (howto
->type
& 16) != 0;
5205 r_relative
= (howto
->type
& 32) != 0;
5206 r_length
= howto
->size
;
5208 PUT_WORD (finfo
->output_bfd
, p
->offset
, srel
.r_address
);
5209 if (finfo
->output_bfd
->xvec
->header_byteorder_big_p
)
5211 srel
.r_index
[0] = r_index
>> 16;
5212 srel
.r_index
[1] = r_index
>> 8;
5213 srel
.r_index
[2] = r_index
;
5215 ((r_extern
? RELOC_STD_BITS_EXTERN_BIG
: 0)
5216 | (r_pcrel
? RELOC_STD_BITS_PCREL_BIG
: 0)
5217 | (r_baserel
? RELOC_STD_BITS_BASEREL_BIG
: 0)
5218 | (r_jmptable
? RELOC_STD_BITS_JMPTABLE_BIG
: 0)
5219 | (r_relative
? RELOC_STD_BITS_RELATIVE_BIG
: 0)
5220 | (r_length
<< RELOC_STD_BITS_LENGTH_SH_BIG
));
5224 srel
.r_index
[2] = r_index
>> 16;
5225 srel
.r_index
[1] = r_index
>> 8;
5226 srel
.r_index
[0] = r_index
;
5228 ((r_extern
? RELOC_STD_BITS_EXTERN_LITTLE
: 0)
5229 | (r_pcrel
? RELOC_STD_BITS_PCREL_LITTLE
: 0)
5230 | (r_baserel
? RELOC_STD_BITS_BASEREL_LITTLE
: 0)
5231 | (r_jmptable
? RELOC_STD_BITS_JMPTABLE_LITTLE
: 0)
5232 | (r_relative
? RELOC_STD_BITS_RELATIVE_LITTLE
: 0)
5233 | (r_length
<< RELOC_STD_BITS_LENGTH_SH_LITTLE
));
5237 rel_ptr
= (PTR
) &srel
;
5239 /* We have to write the addend into the object file, since
5240 standard a.out relocs are in place. It would be more
5241 reliable if we had the current contents of the file here,
5242 rather than assuming zeroes, but we can't read the file since
5243 it was opened using bfd_openw. */
5244 if (pr
->addend
!= 0)
5247 bfd_reloc_status_type r
;
5251 size
= bfd_get_reloc_size (howto
);
5252 buf
= (bfd_byte
*) bfd_zmalloc (size
);
5253 if (buf
== (bfd_byte
*) NULL
)
5255 r
= MY_relocate_contents (howto
, finfo
->output_bfd
,
5262 case bfd_reloc_outofrange
:
5264 case bfd_reloc_overflow
:
5265 if (! ((*finfo
->info
->callbacks
->reloc_overflow
)
5267 (p
->type
== bfd_section_reloc_link_order
5268 ? bfd_section_name (finfo
->output_bfd
,
5271 howto
->name
, pr
->addend
, (bfd
*) NULL
,
5272 (asection
*) NULL
, (bfd_vma
) 0)))
5279 ok
= bfd_set_section_contents (finfo
->output_bfd
, o
,
5281 (file_ptr
) p
->offset
,
5290 PUT_WORD (finfo
->output_bfd
, p
->offset
, erel
.r_address
);
5292 if (finfo
->output_bfd
->xvec
->header_byteorder_big_p
)
5294 erel
.r_index
[0] = r_index
>> 16;
5295 erel
.r_index
[1] = r_index
>> 8;
5296 erel
.r_index
[2] = r_index
;
5298 ((r_extern
? RELOC_EXT_BITS_EXTERN_BIG
: 0)
5299 | (howto
->type
<< RELOC_EXT_BITS_TYPE_SH_BIG
));
5303 erel
.r_index
[2] = r_index
>> 16;
5304 erel
.r_index
[1] = r_index
>> 8;
5305 erel
.r_index
[0] = r_index
;
5307 (r_extern
? RELOC_EXT_BITS_EXTERN_LITTLE
: 0)
5308 | (howto
->type
<< RELOC_EXT_BITS_TYPE_SH_LITTLE
);
5311 PUT_WORD (finfo
->output_bfd
, pr
->addend
, erel
.r_addend
);
5313 rel_ptr
= (PTR
) &erel
;
5316 if (bfd_seek (finfo
->output_bfd
, *reloff_ptr
, SEEK_SET
) != 0
5317 || (bfd_write (rel_ptr
, (bfd_size_type
) 1,
5318 obj_reloc_entry_size (finfo
->output_bfd
),
5320 != obj_reloc_entry_size (finfo
->output_bfd
)))
5323 *reloff_ptr
+= obj_reloc_entry_size (finfo
->output_bfd
);
5325 /* Assert that the relocs have not run into the symbols, and that n
5326 the text relocs have not run into the data relocs. */
5327 BFD_ASSERT (*reloff_ptr
<= obj_sym_filepos (finfo
->output_bfd
)
5328 && (reloff_ptr
!= &finfo
->treloff
5330 <= obj_datasec (finfo
->output_bfd
)->rel_filepos
)));