1 /* BFD back-end for PDP-11 a.out binaries.
2 Copyright 2001, 2002, 2003, 2004, 2005, 2006
3 Free Software Foundation, Inc.
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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
21 /* BFD backend for PDP-11, running 2.11BSD in particular.
23 This file was hacked up by looking hard at the existing vaxnetbsd
24 back end and the header files in 2.11BSD.
27 * support for V7 file formats
28 * support for overlay object files (see 2.11 a.out(5))
29 * support for old and very old archives
30 (see 2.11 ar(5), historical section)
32 Search for TODO to find other areas needing more work. */
34 #define BYTES_IN_WORD 2
35 #define BYTES_IN_LONG 4
37 #undef TARGET_IS_BIG_ENDIAN_P
39 #define TARGET_PAGE_SIZE 1024
40 #define SEGMENT__SIZE TARGET_PAGE_SIZE
42 #define DEFAULT_ARCH bfd_arch_pdp11
43 #define DEFAULT_MID M_PDP11
45 /* Do not "beautify" the CONCAT* macro args. Traditional C will not
46 remove whitespace added here, and thus will fail to concatenate
48 #define MY(OP) CONCAT2 (pdp11_aout_,OP)
50 /* This needs to start with a.out so GDB knows it is an a.out variant. */
51 #define TARGETNAME "a.out-pdp11"
53 /* This is the normal load address for executables. */
54 #define TEXT_START_ADDR 0
56 /* The header is not included in the text segment. */
57 #define N_HEADER_IN_TEXT(x) 0
59 /* There are no shared libraries. */
60 #define N_SHARED_LIB(x) 0
62 /* There is no flags field. */
63 #define N_FLAGS(exec) 0
65 #define N_SET_FLAGS(exec, flags) do { } while (0)
66 #define N_BADMAG(x) (((x).a_info != OMAGIC) \
67 && ((x).a_info != NMAGIC) \
68 && ((x).a_info != A_MAGIC3) \
69 && ((x).a_info != A_MAGIC4) \
70 && ((x).a_info != A_MAGIC5) \
71 && ((x).a_info != A_MAGIC6))
75 #define external_exec pdp11_external_exec
76 struct pdp11_external_exec
78 bfd_byte e_info[2]; /* Magic number. */
79 bfd_byte e_text[2]; /* Length of text section in bytes. */
80 bfd_byte e_data[2]; /* Length of data section in bytes. */
81 bfd_byte e_bss[2]; /* Length of bss area in bytes. */
82 bfd_byte e_syms[2]; /* Length of symbol table in bytes. */
83 bfd_byte e_entry[2]; /* Start address. */
84 bfd_byte e_unused[2]; /* Not used. */
85 bfd_byte e_flag[2]; /* Relocation info stripped. */
86 bfd_byte e_relocatable; /* Ugly hack. */
89 #define EXEC_BYTES_SIZE (8 * 2)
91 #define A_MAGIC1 OMAGIC
92 #define OMAGIC 0407 /* ...object file or impure executable. */
93 #define A_MAGIC2 NMAGIC
94 #define NMAGIC 0410 /* Pure executable. */
95 #define ZMAGIC 0413 /* Demand-paged executable. */
96 #define A_MAGIC3 0411 /* Separated I&D. */
97 #define A_MAGIC4 0405 /* Overlay. */
98 #define A_MAGIC5 0430 /* Auto-overlay (nonseparate). */
99 #define A_MAGIC6 0431 /* Auto-overlay (separate). */
103 #define A_FLAG_RELOC_STRIPPED 0x0001
105 #define external_nlist pdp11_external_nlist
106 struct pdp11_external_nlist
108 bfd_byte e_unused[2]; /* Unused. */
109 bfd_byte e_strx[2]; /* Index into string table of name. */
110 bfd_byte e_type[1]; /* Type of symbol. */
111 bfd_byte e_ovly[1]; /* Overlay number. */
112 bfd_byte e_value[2]; /* Value of symbol. */
115 #define EXTERNAL_NLIST_SIZE 8
117 #define N_TXTOFF(x) (EXEC_BYTES_SIZE)
118 #define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text)
119 #define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data)
120 #define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize)
121 #define N_SYMOFF(x) (N_DRELOFF(x) + (x).a_drsize)
122 #define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms)
124 #define WRITE_HEADERS(abfd, execp) pdp11_aout_write_headers (abfd, execp)
130 #define SWAP_MAGIC(ext) bfd_getl16 (ext)
132 #define MY_entry_is_text_address 1
134 #define MY_write_object_contents MY(write_object_contents)
135 static bfd_boolean MY(write_object_contents) (bfd *);
136 #define MY_text_includes_header 1
138 #define MY_BFD_TARGET
140 #include "aout-target.h"
142 /* Start of modified aoutx.h. */
143 #define KEEPIT udata.i
145 #include <string.h> /* For strchr and friends. */
148 #include "safe-ctype.h"
152 #include "aout/aout64.h"
153 #include "aout/stab_gnu.h"
165 #define N_TYPE 0x1f /* Type mask. */
166 #define N_UNDF 0x00 /* Undefined. */
167 #define N_ABS 0x01 /* Absolute. */
168 #define N_TEXT 0x02 /* Text segment. */
169 #define N_DATA 0x03 /* Data segment. */
170 #define N_BSS 0x04 /* Bss segment. */
171 #define N_REG 0x14 /* Register symbol. */
172 #define N_FN 0x1f /* File name. */
173 #define N_EXT 0x20 /* External flag. */
177 #define RELFLG 0x0001 /* PC-relative flag. */
178 #define RTYPE 0x000e /* Type mask. */
179 #define RIDXMASK 0xfff0 /* Index mask. */
181 #define RABS 0x00 /* Absolute. */
182 #define RTEXT 0x02 /* Text. */
183 #define RDATA 0x04 /* Data. */
184 #define RBSS 0x06 /* Bss. */
185 #define REXT 0x08 /* External. */
187 #define RINDEX(x) (((x) & 0xfff0) >> 4)
189 #ifndef MY_final_link_relocate
190 #define MY_final_link_relocate _bfd_final_link_relocate
193 #ifndef MY_relocate_contents
194 #define MY_relocate_contents _bfd_relocate_contents
197 /* A hash table used for header files with N_BINCL entries. */
199 struct aout_link_includes_table
201 struct bfd_hash_table root;
204 /* A linked list of totals that we have found for a particular header
207 struct aout_link_includes_totals
209 struct aout_link_includes_totals *next;
213 /* An entry in the header file hash table. */
215 struct aout_link_includes_entry
217 struct bfd_hash_entry root;
218 /* List of totals we have found for this file. */
219 struct aout_link_includes_totals *totals;
222 /* During the final link step we need to pass around a bunch of
223 information, so we do it in an instance of this structure. */
225 struct aout_final_link_info
227 /* General link information. */
228 struct bfd_link_info *info;
231 /* Reloc file positions. */
232 file_ptr treloff, dreloff;
233 /* File position of symbols. */
236 struct bfd_strtab_hash *strtab;
237 /* Header file hash table. */
238 struct aout_link_includes_table includes;
239 /* A buffer large enough to hold the contents of any section. */
241 /* A buffer large enough to hold the relocs of any section. */
243 /* A buffer large enough to hold the symbol map of any input BFD. */
245 /* A buffer large enough to hold output symbols of any input BFD. */
246 struct external_nlist *output_syms;
249 reloc_howto_type howto_table_pdp11[] =
251 /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */
252 HOWTO( 0, 0, 1, 16, FALSE, 0, complain_overflow_signed,0,"16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
253 HOWTO( 1, 0, 1, 16, TRUE, 0, complain_overflow_signed,0,"DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
256 #define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0]))
259 static bfd_boolean aout_link_check_archive_element (bfd *, struct bfd_link_info *, bfd_boolean *);
260 static bfd_boolean aout_link_add_object_symbols (bfd *, struct bfd_link_info *);
261 static bfd_boolean aout_link_add_symbols (bfd *, struct bfd_link_info *);
262 static bfd_boolean aout_link_write_symbols (struct aout_final_link_info *, bfd *);
266 NAME (aout, reloc_type_lookup) (bfd * abfd ATTRIBUTE_UNUSED,
267 bfd_reloc_code_real_type code)
272 return &howto_table_pdp11[0];
273 case BFD_RELOC_16_PCREL:
274 return &howto_table_pdp11[1];
281 pdp11_aout_write_headers (bfd *abfd, struct internal_exec *execp)
283 struct external_exec exec_bytes;
284 bfd_size_type text_size;
287 if (adata(abfd).magic == undecided_magic)
288 NAME (aout, adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
290 execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE;
291 execp->a_entry = bfd_get_start_address (abfd);
293 if (obj_textsec (abfd)->reloc_count > 0
294 || obj_datasec (abfd)->reloc_count > 0)
296 execp->a_trsize = execp->a_text;
297 execp->a_drsize = execp->a_data;
305 NAME (aout, swap_exec_header_out) (abfd, execp, & exec_bytes);
307 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
310 if (bfd_bwrite ((void *) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, abfd)
314 /* Now write out reloc info, followed by syms and strings. */
315 if (bfd_get_outsymbols (abfd) != NULL
316 && bfd_get_symcount (abfd) != 0)
318 if (bfd_seek (abfd, (file_ptr) (N_SYMOFF(*execp)), SEEK_SET) != 0)
321 if (! NAME (aout, write_syms) (abfd))
325 if (obj_textsec (abfd)->reloc_count > 0
326 || obj_datasec (abfd)->reloc_count > 0)
328 if (bfd_seek (abfd, (file_ptr) (N_TRELOFF(*execp)), SEEK_SET) != 0
329 || !NAME (aout, squirt_out_relocs) (abfd, obj_textsec (abfd))
330 || bfd_seek (abfd, (file_ptr) (N_DRELOFF(*execp)), SEEK_SET) != 0
331 || !NAME (aout, squirt_out_relocs) (abfd, obj_datasec (abfd)))
338 /* Write an object file.
339 Section contents have already been written. We write the
340 file header, symbols, and relocation. */
343 MY(write_object_contents) (bfd *abfd)
345 struct internal_exec *execp = exec_hdr (abfd);
347 /* We must make certain that the magic number has been set. This
348 will normally have been done by set_section_contents, but only if
349 there actually are some section contents. */
350 if (! abfd->output_has_begun)
352 bfd_size_type text_size;
355 NAME (aout, adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
358 obj_reloc_entry_size (abfd) = RELOC_SIZE;
360 return WRITE_HEADERS (abfd, execp);
363 /* Swap the information in an executable header @var{raw_bytes} taken
364 from a raw byte stream memory image into the internal exec header
365 structure "execp". */
367 #ifndef NAME_swap_exec_header_in
369 NAME (aout, swap_exec_header_in) (bfd *abfd,
370 struct external_exec *bytes,
371 struct internal_exec *execp)
373 /* The internal_exec structure has some fields that are unused in this
374 configuration (IE for i960), so ensure that all such uninitialized
375 fields are zero'd out. There are places where two of these structs
376 are memcmp'd, and thus the contents do matter. */
377 memset ((void *) execp, 0, sizeof (struct internal_exec));
378 /* Now fill in fields in the execp, from the bytes in the raw data. */
379 execp->a_info = GET_MAGIC (abfd, bytes->e_info);
380 execp->a_text = GET_WORD (abfd, bytes->e_text);
381 execp->a_data = GET_WORD (abfd, bytes->e_data);
382 execp->a_bss = GET_WORD (abfd, bytes->e_bss);
383 execp->a_syms = GET_WORD (abfd, bytes->e_syms);
384 execp->a_entry = GET_WORD (abfd, bytes->e_entry);
386 if (GET_WORD (abfd, bytes->e_flag) & A_FLAG_RELOC_STRIPPED)
393 execp->a_trsize = execp->a_text;
394 execp->a_drsize = execp->a_data;
397 #define NAME_swap_exec_header_in NAME (aout, swap_exec_header_in)
400 /* Swap the information in an internal exec header structure
401 "execp" into the buffer "bytes" ready for writing to disk. */
403 NAME (aout, swap_exec_header_out) (bfd *abfd,
404 struct internal_exec *execp,
405 struct external_exec *bytes)
407 /* Now fill in fields in the raw data, from the fields in the exec struct. */
408 PUT_MAGIC (abfd, execp->a_info, bytes->e_info);
409 PUT_WORD (abfd, execp->a_text, bytes->e_text);
410 PUT_WORD (abfd, execp->a_data, bytes->e_data);
411 PUT_WORD (abfd, execp->a_bss, bytes->e_bss);
412 PUT_WORD (abfd, execp->a_syms, bytes->e_syms);
413 PUT_WORD (abfd, execp->a_entry, bytes->e_entry);
414 PUT_WORD (abfd, 0, bytes->e_unused);
416 if ((execp->a_trsize == 0 || execp->a_text == 0)
417 && (execp->a_drsize == 0 || execp->a_data == 0))
418 PUT_WORD (abfd, A_FLAG_RELOC_STRIPPED, bytes->e_flag);
419 else if (execp->a_trsize == execp->a_text
420 && execp->a_drsize == execp->a_data)
421 PUT_WORD (abfd, 0, bytes->e_flag);
424 /* TODO: print a proper warning message. */
425 fprintf (stderr, "BFD:%s:%d: internal error\n", __FILE__, __LINE__);
426 PUT_WORD (abfd, 0, bytes->e_flag);
430 /* Make all the section for an a.out file. */
433 NAME (aout, make_sections) (bfd *abfd)
435 if (obj_textsec (abfd) == NULL && bfd_make_section (abfd, ".text") == NULL)
437 if (obj_datasec (abfd) == NULL && bfd_make_section (abfd, ".data") == NULL)
439 if (obj_bsssec (abfd) == NULL && bfd_make_section (abfd, ".bss") == NULL)
444 /* Some a.out variant thinks that the file open in ABFD
445 checking is an a.out file. Do some more checking, and set up
446 for access if it really is. Call back to the calling
447 environment's "finish up" function just before returning, to
448 handle any last-minute setup. */
451 NAME (aout, some_aout_object_p) (bfd *abfd,
452 struct internal_exec *execp,
453 const bfd_target *(*callback_to_real_object_p) (bfd *))
455 struct aout_data_struct *rawptr, *oldrawptr;
456 const bfd_target *result;
457 bfd_size_type amt = sizeof (struct aout_data_struct);
459 rawptr = bfd_zalloc (abfd, amt);
463 oldrawptr = abfd->tdata.aout_data;
464 abfd->tdata.aout_data = rawptr;
466 /* Copy the contents of the old tdata struct.
467 In particular, we want the subformat, since for hpux it was set in
468 hp300hpux.c:swap_exec_header_in and will be used in
469 hp300hpux.c:callback. */
470 if (oldrawptr != NULL)
471 *abfd->tdata.aout_data = *oldrawptr;
473 abfd->tdata.aout_data->a.hdr = &rawptr->e;
474 *(abfd->tdata.aout_data->a.hdr) = *execp; /* Copy in the internal_exec struct. */
475 execp = abfd->tdata.aout_data->a.hdr;
477 /* Set the file flags. */
478 abfd->flags = BFD_NO_FLAGS;
479 if (execp->a_drsize || execp->a_trsize)
480 abfd->flags |= HAS_RELOC;
481 /* Setting of EXEC_P has been deferred to the bottom of this function. */
483 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
484 if (N_DYNAMIC(*execp))
485 abfd->flags |= DYNAMIC;
487 if (N_MAGIC (*execp) == ZMAGIC)
489 abfd->flags |= D_PAGED | WP_TEXT;
490 adata (abfd).magic = z_magic;
492 else if (N_MAGIC (*execp) == QMAGIC)
494 abfd->flags |= D_PAGED | WP_TEXT;
495 adata (abfd).magic = z_magic;
496 adata (abfd).subformat = q_magic_format;
498 else if (N_MAGIC (*execp) == NMAGIC)
500 abfd->flags |= WP_TEXT;
501 adata (abfd).magic = n_magic;
503 else if (N_MAGIC (*execp) == OMAGIC
504 || N_MAGIC (*execp) == BMAGIC)
505 adata (abfd).magic = o_magic;
508 /* Should have been checked with N_BADMAG before this routine
513 bfd_get_start_address (abfd) = execp->a_entry;
515 obj_aout_symbols (abfd) = NULL;
516 bfd_get_symcount (abfd) = execp->a_syms / sizeof (struct external_nlist);
518 /* The default relocation entry size is that of traditional V7 Unix. */
519 obj_reloc_entry_size (abfd) = RELOC_SIZE;
521 /* The default symbol entry size is that of traditional Unix. */
522 obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE;
525 bfd_init_window (&obj_aout_sym_window (abfd));
526 bfd_init_window (&obj_aout_string_window (abfd));
529 obj_aout_external_syms (abfd) = NULL;
530 obj_aout_external_strings (abfd) = NULL;
531 obj_aout_sym_hashes (abfd) = NULL;
533 if (! NAME (aout, make_sections) (abfd))
536 obj_datasec (abfd)->size = execp->a_data;
537 obj_bsssec (abfd)->size = execp->a_bss;
539 obj_textsec (abfd)->flags =
540 (execp->a_trsize != 0
541 ? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC)
542 : (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS));
543 obj_datasec (abfd)->flags =
544 (execp->a_drsize != 0
545 ? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC)
546 : (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS));
547 obj_bsssec (abfd)->flags = SEC_ALLOC;
549 #ifdef THIS_IS_ONLY_DOCUMENTATION
550 /* The common code can't fill in these things because they depend
551 on either the start address of the text segment, the rounding
552 up of virtual addresses between segments, or the starting file
553 position of the text segment -- all of which varies among different
554 versions of a.out. */
556 /* Call back to the format-dependent code to fill in the rest of the
557 fields and do any further cleanup. Things that should be filled
558 in by the callback: */
559 struct exec *execp = exec_hdr (abfd);
561 obj_textsec (abfd)->size = N_TXTSIZE(*execp);
562 /* Data and bss are already filled in since they're so standard. */
564 /* The virtual memory addresses of the sections. */
565 obj_textsec (abfd)->vma = N_TXTADDR(*execp);
566 obj_datasec (abfd)->vma = N_DATADDR(*execp);
567 obj_bsssec (abfd)->vma = N_BSSADDR(*execp);
569 /* The file offsets of the sections. */
570 obj_textsec (abfd)->filepos = N_TXTOFF(*execp);
571 obj_datasec (abfd)->filepos = N_DATOFF(*execp);
573 /* The file offsets of the relocation info. */
574 obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp);
575 obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp);
577 /* The file offsets of the string table and symbol table. */
578 obj_str_filepos (abfd) = N_STROFF (*execp);
579 obj_sym_filepos (abfd) = N_SYMOFF (*execp);
581 /* Determine the architecture and machine type of the object file. */
582 abfd->obj_arch = bfd_arch_obscure;
584 adata(abfd)->page_size = TARGET_PAGE_SIZE;
585 adata(abfd)->segment_size = SEGMENT_SIZE;
586 adata(abfd)->exec_bytes_size = EXEC_BYTES_SIZE;
590 /* The architecture is encoded in various ways in various a.out variants,
591 or is not encoded at all in some of them. The relocation size depends
592 on the architecture and the a.out variant. Finally, the return value
593 is the bfd_target vector in use. If an error occurs, return zero and
594 set bfd_error to the appropriate error code.
596 Formats such as b.out, which have additional fields in the a.out
597 header, should cope with them in this callback as well. */
598 #endif /* DOCUMENTATION */
600 result = (*callback_to_real_object_p)(abfd);
602 /* Now that the segment addresses have been worked out, take a better
603 guess at whether the file is executable. If the entry point
604 is within the text segment, assume it is. (This makes files
605 executable even if their entry point address is 0, as long as
606 their text starts at zero.).
608 This test had to be changed to deal with systems where the text segment
609 runs at a different location than the default. The problem is that the
610 entry address can appear to be outside the text segment, thus causing an
611 erroneous conclusion that the file isn't executable.
613 To fix this, we now accept any non-zero entry point as an indication of
614 executability. This will work most of the time, since only the linker
615 sets the entry point, and that is likely to be non-zero for most systems. */
617 if (execp->a_entry != 0
618 || (execp->a_entry >= obj_textsec(abfd)->vma
619 && execp->a_entry < obj_textsec(abfd)->vma + obj_textsec(abfd)->size))
620 abfd->flags |= EXEC_P;
624 struct stat stat_buf;
626 /* The original heuristic doesn't work in some important cases.
627 The a.out file has no information about the text start
628 address. For files (like kernels) linked to non-standard
629 addresses (ld -Ttext nnn) the entry point may not be between
630 the default text start (obj_textsec(abfd)->vma) and
631 (obj_textsec(abfd)->vma) + text size. This is not just a mach
632 issue. Many kernels are loaded at non standard addresses. */
633 if (abfd->iostream != NULL
634 && (abfd->flags & BFD_IN_MEMORY) == 0
635 && (fstat(fileno((FILE *) (abfd->iostream)), &stat_buf) == 0)
636 && ((stat_buf.st_mode & 0111) != 0))
637 abfd->flags |= EXEC_P;
639 #endif /* STAT_FOR_EXEC */
644 abfd->tdata.aout_data = oldrawptr;
649 /* Initialize ABFD for use with a.out files. */
652 NAME (aout, mkobject) (bfd *abfd)
654 struct aout_data_struct *rawptr;
655 bfd_size_type amt = sizeof (struct aout_data_struct);
657 bfd_set_error (bfd_error_system_call);
659 /* Use an intermediate variable for clarity. */
660 rawptr = bfd_zalloc (abfd, amt);
665 abfd->tdata.aout_data = rawptr;
666 exec_hdr (abfd) = &(rawptr->e);
668 obj_textsec (abfd) = NULL;
669 obj_datasec (abfd) = NULL;
670 obj_bsssec (abfd) = NULL;
675 /* Keep track of machine architecture and machine type for
676 a.out's. Return the <<machine_type>> for a particular
677 architecture and machine, or <<M_UNKNOWN>> if that exact architecture
678 and machine can't be represented in a.out format.
680 If the architecture is understood, machine type 0 (default)
681 is always understood. */
684 NAME (aout, machine_type) (enum bfd_architecture arch,
685 unsigned long machine,
686 bfd_boolean *unknown)
688 enum machine_type arch_flags;
690 arch_flags = M_UNKNOWN;
697 || machine == bfd_mach_sparc
698 || machine == bfd_mach_sparc_sparclite
699 || machine == bfd_mach_sparc_v9)
700 arch_flags = M_SPARC;
701 else if (machine == bfd_mach_sparc_sparclet)
702 arch_flags = M_SPARCLET;
708 case 0: arch_flags = M_68010; break;
709 case bfd_mach_m68000: arch_flags = M_UNKNOWN; *unknown = FALSE; break;
710 case bfd_mach_m68010: arch_flags = M_68010; break;
711 case bfd_mach_m68020: arch_flags = M_68020; break;
712 default: arch_flags = M_UNKNOWN; break;
718 || machine == bfd_mach_i386_i386
719 || machine == bfd_mach_i386_i386_intel_syntax)
724 if (machine == 0) arch_flags = M_ARM;
732 case bfd_mach_mips3000:
733 arch_flags = M_MIPS1;
735 case bfd_mach_mips4000: /* MIPS3 */
736 case bfd_mach_mips4400:
737 case bfd_mach_mips8000: /* MIPS4 */
738 case bfd_mach_mips6000: /* Real MIPS2: */
739 arch_flags = M_MIPS2;
742 arch_flags = M_UNKNOWN;
750 case 0: arch_flags = M_NS32532; break;
751 case 32032: arch_flags = M_NS32032; break;
752 case 32532: arch_flags = M_NS32532; break;
753 default: arch_flags = M_UNKNOWN; break;
758 /* TODO: arch_flags = M_PDP11; */
767 arch_flags = M_UNKNOWN;
770 if (arch_flags != M_UNKNOWN)
776 /* Set the architecture and the machine of the ABFD to the
777 values ARCH and MACHINE. Verify that @ABFD's format
778 can support the architecture required. */
781 NAME (aout, set_arch_mach) (bfd *abfd,
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 obj_reloc_entry_size (abfd) = RELOC_SIZE;
799 return (*aout_backend_info(abfd)->set_sizes) (abfd);
803 adjust_o_magic (bfd *abfd, struct internal_exec *execp)
805 file_ptr pos = adata (abfd).exec_bytes_size;
810 obj_textsec (abfd)->filepos = pos;
811 if (! obj_textsec (abfd)->user_set_vma)
812 obj_textsec (abfd)->vma = vma;
814 vma = obj_textsec (abfd)->vma;
816 pos += obj_textsec (abfd)->size;
817 vma += obj_textsec (abfd)->size;
820 if (!obj_datasec (abfd)->user_set_vma)
822 obj_textsec (abfd)->size += pad;
825 obj_datasec (abfd)->vma = vma;
828 vma = obj_datasec (abfd)->vma;
829 obj_datasec (abfd)->filepos = pos;
830 pos += obj_datasec (abfd)->size;
831 vma += obj_datasec (abfd)->size;
834 if (! obj_bsssec (abfd)->user_set_vma)
836 obj_datasec (abfd)->size += pad;
839 obj_bsssec (abfd)->vma = vma;
843 /* The VMA of the .bss section is set by the VMA of the
844 .data section plus the size of the .data section. We may
845 need to add padding bytes to make this true. */
846 pad = obj_bsssec (abfd)->vma - vma;
849 obj_datasec (abfd)->size += pad;
853 obj_bsssec (abfd)->filepos = pos;
855 /* Fix up the exec header. */
856 execp->a_text = obj_textsec (abfd)->size;
857 execp->a_data = obj_datasec (abfd)->size;
858 execp->a_bss = obj_bsssec (abfd)->size;
859 N_SET_MAGIC (*execp, OMAGIC);
863 adjust_z_magic (bfd *abfd, struct internal_exec *execp)
865 bfd_size_type data_pad, text_pad;
867 const struct aout_backend_data *abdp;
868 int ztih; /* Nonzero if text includes exec header. */
870 abdp = aout_backend_info (abfd);
874 && (abdp->text_includes_header
875 || obj_aout_subformat (abfd) == q_magic_format));
876 obj_textsec(abfd)->filepos = (ztih
877 ? adata(abfd).exec_bytes_size
878 : adata(abfd).zmagic_disk_block_size);
879 if (! obj_textsec(abfd)->user_set_vma)
881 /* ?? Do we really need to check for relocs here? */
882 obj_textsec(abfd)->vma = ((abfd->flags & HAS_RELOC)
885 ? (abdp->default_text_vma
886 + adata (abfd).exec_bytes_size)
887 : abdp->default_text_vma));
892 /* The .text section is being loaded at an unusual address. We
893 may need to pad it such that the .data section starts at a page
896 text_pad = ((obj_textsec (abfd)->filepos - obj_textsec (abfd)->vma)
897 & (adata (abfd).page_size - 1));
899 text_pad = ((- obj_textsec (abfd)->vma)
900 & (adata (abfd).page_size - 1));
903 /* Find start of data. */
906 text_end = obj_textsec (abfd)->filepos + obj_textsec (abfd)->size;
907 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
911 /* Note that if page_size == zmagic_disk_block_size, then
912 filepos == page_size, and this case is the same as the ztih
914 text_end = obj_textsec (abfd)->size;
915 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
916 text_end += obj_textsec (abfd)->filepos;
919 obj_textsec (abfd)->size += text_pad;
920 text_end += text_pad;
923 if (!obj_datasec(abfd)->user_set_vma)
926 vma = obj_textsec(abfd)->vma + obj_textsec(abfd)->size;
927 obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size);
929 if (abdp && abdp->zmagic_mapped_contiguous)
931 text_pad = (obj_datasec(abfd)->vma
932 - obj_textsec(abfd)->vma
933 - obj_textsec(abfd)->size);
934 obj_textsec(abfd)->size += text_pad;
936 obj_datasec (abfd)->filepos = (obj_textsec (abfd)->filepos
937 + obj_textsec (abfd)->size);
939 /* Fix up exec header while we're at it. */
940 execp->a_text = obj_textsec(abfd)->size;
941 if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted)))
942 execp->a_text += adata(abfd).exec_bytes_size;
943 if (obj_aout_subformat (abfd) == q_magic_format)
944 N_SET_MAGIC (*execp, QMAGIC);
946 N_SET_MAGIC (*execp, ZMAGIC);
948 /* Spec says data section should be rounded up to page boundary. */
949 obj_datasec(abfd)->size
950 = align_power (obj_datasec(abfd)->size,
951 obj_bsssec(abfd)->alignment_power);
952 execp->a_data = BFD_ALIGN (obj_datasec(abfd)->size,
953 adata(abfd).page_size);
954 data_pad = execp->a_data - obj_datasec(abfd)->size;
957 if (!obj_bsssec(abfd)->user_set_vma)
958 obj_bsssec(abfd)->vma = (obj_datasec(abfd)->vma
959 + obj_datasec(abfd)->size);
960 /* If the BSS immediately follows the data section and extra space
961 in the page is left after the data section, fudge data
962 in the header so that the bss section looks smaller by that
963 amount. We'll start the bss section there, and lie to the OS.
964 (Note that a linker script, as well as the above assignment,
965 could have explicitly set the BSS vma to immediately follow
966 the data section.) */
967 if (align_power (obj_bsssec(abfd)->vma, obj_bsssec(abfd)->alignment_power)
968 == obj_datasec(abfd)->vma + obj_datasec(abfd)->size)
969 execp->a_bss = (data_pad > obj_bsssec(abfd)->size) ? 0 :
970 obj_bsssec(abfd)->size - data_pad;
972 execp->a_bss = obj_bsssec(abfd)->size;
976 adjust_n_magic (bfd *abfd, struct internal_exec *execp)
978 file_ptr pos = adata(abfd).exec_bytes_size;
983 obj_textsec(abfd)->filepos = pos;
984 if (!obj_textsec(abfd)->user_set_vma)
985 obj_textsec(abfd)->vma = vma;
987 vma = obj_textsec(abfd)->vma;
988 pos += obj_textsec(abfd)->size;
989 vma += obj_textsec(abfd)->size;
992 obj_datasec(abfd)->filepos = pos;
993 if (!obj_datasec(abfd)->user_set_vma)
994 obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size);
995 vma = obj_datasec(abfd)->vma;
997 /* Since BSS follows data immediately, see if it needs alignment. */
998 vma += obj_datasec(abfd)->size;
999 pad = align_power (vma, obj_bsssec(abfd)->alignment_power) - vma;
1000 obj_datasec(abfd)->size += pad;
1001 pos += obj_datasec(abfd)->size;
1004 if (!obj_bsssec(abfd)->user_set_vma)
1005 obj_bsssec(abfd)->vma = vma;
1007 vma = obj_bsssec(abfd)->vma;
1009 /* Fix up exec header. */
1010 execp->a_text = obj_textsec(abfd)->size;
1011 execp->a_data = obj_datasec(abfd)->size;
1012 execp->a_bss = obj_bsssec(abfd)->size;
1013 N_SET_MAGIC (*execp, NMAGIC);
1017 NAME (aout, adjust_sizes_and_vmas) (bfd *abfd,
1018 bfd_size_type *text_size,
1019 file_ptr * text_end ATTRIBUTE_UNUSED)
1021 struct internal_exec *execp = exec_hdr (abfd);
1023 if (! NAME (aout, make_sections) (abfd))
1026 if (adata(abfd).magic != undecided_magic)
1029 obj_textsec(abfd)->size =
1030 align_power(obj_textsec(abfd)->size,
1031 obj_textsec(abfd)->alignment_power);
1033 *text_size = obj_textsec (abfd)->size;
1034 /* Rule (heuristic) for when to pad to a new page. Note that there
1035 are (at least) two ways demand-paged (ZMAGIC) files have been
1036 handled. Most Berkeley-based systems start the text segment at
1037 (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text
1038 segment right after the exec header; the latter is counted in the
1039 text segment size, and is paged in by the kernel with the rest of
1042 /* This perhaps isn't the right way to do this, but made it simpler for me
1043 to understand enough to implement it. Better would probably be to go
1044 right from BFD flags to alignment/positioning characteristics. But the
1045 old code was sloppy enough about handling the flags, and had enough
1046 other magic, that it was a little hard for me to understand. I think
1047 I understand it better now, but I haven't time to do the cleanup this
1050 if (abfd->flags & WP_TEXT)
1051 adata(abfd).magic = n_magic;
1053 adata(abfd).magic = o_magic;
1055 #ifdef BFD_AOUT_DEBUG /* requires gcc2 */
1057 fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n",
1059 switch (adata(abfd).magic) {
1060 case n_magic: str = "NMAGIC"; break;
1061 case o_magic: str = "OMAGIC"; break;
1062 case z_magic: str = "ZMAGIC"; break;
1067 obj_textsec(abfd)->vma, obj_textsec(abfd)->size,
1068 obj_textsec(abfd)->alignment_power,
1069 obj_datasec(abfd)->vma, obj_datasec(abfd)->size,
1070 obj_datasec(abfd)->alignment_power,
1071 obj_bsssec(abfd)->vma, obj_bsssec(abfd)->size,
1072 obj_bsssec(abfd)->alignment_power);
1076 switch (adata(abfd).magic)
1079 adjust_o_magic (abfd, execp);
1082 adjust_z_magic (abfd, execp);
1085 adjust_n_magic (abfd, execp);
1091 #ifdef BFD_AOUT_DEBUG
1092 fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n",
1093 obj_textsec(abfd)->vma, obj_textsec(abfd)->size,
1094 obj_textsec(abfd)->filepos,
1095 obj_datasec(abfd)->vma, obj_datasec(abfd)->size,
1096 obj_datasec(abfd)->filepos,
1097 obj_bsssec(abfd)->vma, obj_bsssec(abfd)->size);
1103 /* Called by the BFD in response to a bfd_make_section request. */
1106 NAME (aout, new_section_hook) (bfd *abfd, asection *newsect)
1108 /* Align to double at least. */
1109 newsect->alignment_power = bfd_get_arch_info(abfd)->section_align_power;
1111 if (bfd_get_format (abfd) == bfd_object)
1113 if (obj_textsec (abfd) == NULL
1114 && !strcmp (newsect->name, ".text"))
1116 obj_textsec(abfd)= newsect;
1117 newsect->target_index = N_TEXT;
1119 else if (obj_datasec (abfd) == NULL
1120 && !strcmp (newsect->name, ".data"))
1122 obj_datasec (abfd) = newsect;
1123 newsect->target_index = N_DATA;
1125 else if (obj_bsssec (abfd) == NULL
1126 && !strcmp (newsect->name, ".bss"))
1128 obj_bsssec (abfd) = newsect;
1129 newsect->target_index = N_BSS;
1133 /* We allow more than three sections internally. */
1134 return _bfd_generic_new_section_hook (abfd, newsect);
1138 NAME (aout, set_section_contents) (bfd *abfd,
1140 const void * location,
1142 bfd_size_type count)
1145 bfd_size_type text_size;
1147 if (! abfd->output_has_begun)
1149 if (! NAME (aout, adjust_sizes_and_vmas) (abfd, & text_size, & text_end))
1153 if (section == obj_bsssec (abfd))
1155 bfd_set_error (bfd_error_no_contents);
1159 if (section != obj_textsec (abfd)
1160 && section != obj_datasec (abfd))
1162 (*_bfd_error_handler)
1163 ("%s: can not represent section `%s' in a.out object file format",
1164 bfd_get_filename (abfd), bfd_get_section_name (abfd, section));
1165 bfd_set_error (bfd_error_nonrepresentable_section);
1171 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
1172 || bfd_bwrite (location, count, abfd) != count)
1179 /* Read the external symbols from an a.out file. */
1182 aout_get_external_symbols (bfd *abfd)
1184 if (obj_aout_external_syms (abfd) == NULL)
1186 bfd_size_type count;
1187 struct external_nlist *syms;
1189 count = exec_hdr (abfd)->a_syms / EXTERNAL_NLIST_SIZE;
1192 if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd),
1193 exec_hdr (abfd)->a_syms,
1194 &obj_aout_sym_window (abfd), TRUE))
1196 syms = (struct external_nlist *) obj_aout_sym_window (abfd).data;
1198 /* We allocate using malloc to make the values easy to free
1199 later on. If we put them on the objalloc it might not be
1200 possible to free them. */
1201 syms = bfd_malloc (count * EXTERNAL_NLIST_SIZE);
1202 if (syms == NULL && count != 0)
1205 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
1206 || (bfd_bread (syms, exec_hdr (abfd)->a_syms, abfd)
1207 != exec_hdr (abfd)->a_syms))
1214 obj_aout_external_syms (abfd) = syms;
1215 obj_aout_external_sym_count (abfd) = count;
1218 if (obj_aout_external_strings (abfd) == NULL
1219 && exec_hdr (abfd)->a_syms != 0)
1221 unsigned char string_chars[BYTES_IN_LONG];
1222 bfd_size_type stringsize;
1225 /* Get the size of the strings. */
1226 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
1227 || (bfd_bread ((void *) string_chars, (bfd_size_type) BYTES_IN_LONG,
1228 abfd) != BYTES_IN_LONG))
1230 stringsize = H_GET_32 (abfd, string_chars);
1233 if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize,
1234 &obj_aout_string_window (abfd), TRUE))
1236 strings = (char *) obj_aout_string_window (abfd).data;
1238 strings = bfd_malloc (stringsize + 1);
1239 if (strings == NULL)
1242 /* Skip space for the string count in the buffer for convenience
1243 when using indexes. */
1244 if (bfd_bread (strings + 4, stringsize - 4, abfd) != stringsize - 4)
1250 /* Ensure that a zero index yields an empty string. */
1253 strings[stringsize - 1] = 0;
1255 obj_aout_external_strings (abfd) = strings;
1256 obj_aout_external_string_size (abfd) = stringsize;
1262 /* Translate an a.out symbol into a BFD symbol. The desc, other, type
1263 and symbol->value fields of CACHE_PTR will be set from the a.out
1264 nlist structure. This function is responsible for setting
1265 symbol->flags and symbol->section, and adjusting symbol->value. */
1268 translate_from_native_sym_flags (bfd *abfd,
1269 aout_symbol_type *cache_ptr)
1273 if (cache_ptr->type == N_FN)
1277 /* This is a debugging symbol. */
1278 cache_ptr->symbol.flags = BSF_DEBUGGING;
1280 /* Work out the symbol section. */
1281 switch (cache_ptr->type & N_TYPE)
1285 sec = obj_textsec (abfd);
1288 sec = obj_datasec (abfd);
1291 sec = obj_bsssec (abfd);
1295 sec = bfd_abs_section_ptr;
1299 cache_ptr->symbol.section = sec;
1300 cache_ptr->symbol.value -= sec->vma;
1305 /* Get the default visibility. This does not apply to all types, so
1306 we just hold it in a local variable to use if wanted. */
1307 if ((cache_ptr->type & N_EXT) == 0)
1308 visible = BSF_LOCAL;
1310 visible = BSF_GLOBAL;
1312 switch (cache_ptr->type)
1315 case N_ABS: case N_ABS | N_EXT:
1316 cache_ptr->symbol.section = bfd_abs_section_ptr;
1317 cache_ptr->symbol.flags = visible;
1320 case N_UNDF | N_EXT:
1321 if (cache_ptr->symbol.value != 0)
1323 /* This is a common symbol. */
1324 cache_ptr->symbol.flags = BSF_GLOBAL;
1325 cache_ptr->symbol.section = bfd_com_section_ptr;
1329 cache_ptr->symbol.flags = 0;
1330 cache_ptr->symbol.section = bfd_und_section_ptr;
1334 case N_TEXT: case N_TEXT | N_EXT:
1335 cache_ptr->symbol.section = obj_textsec (abfd);
1336 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1337 cache_ptr->symbol.flags = visible;
1340 case N_DATA: case N_DATA | N_EXT:
1341 cache_ptr->symbol.section = obj_datasec (abfd);
1342 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1343 cache_ptr->symbol.flags = visible;
1346 case N_BSS: case N_BSS | N_EXT:
1347 cache_ptr->symbol.section = obj_bsssec (abfd);
1348 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1349 cache_ptr->symbol.flags = visible;
1356 /* Set the fields of SYM_POINTER according to CACHE_PTR. */
1359 translate_to_native_sym_flags (bfd *abfd,
1361 struct external_nlist *sym_pointer)
1363 bfd_vma value = cache_ptr->value;
1367 /* Mask out any existing type bits in case copying from one section
1369 sym_pointer->e_type[0] &= ~N_TYPE;
1371 sec = bfd_get_section (cache_ptr);
1376 /* This case occurs, e.g., for the *DEBUG* section of a COFF
1378 (*_bfd_error_handler)
1379 ("%B: can not represent section for symbol `%s' in a.out object file format",
1380 abfd, cache_ptr->name != NULL ? cache_ptr->name : "*unknown*");
1381 bfd_set_error (bfd_error_nonrepresentable_section);
1385 if (sec->output_section != NULL)
1387 off = sec->output_offset;
1388 sec = sec->output_section;
1391 if (bfd_is_abs_section (sec))
1392 sym_pointer->e_type[0] |= N_ABS;
1393 else if (sec == obj_textsec (abfd))
1394 sym_pointer->e_type[0] |= N_TEXT;
1395 else if (sec == obj_datasec (abfd))
1396 sym_pointer->e_type[0] |= N_DATA;
1397 else if (sec == obj_bsssec (abfd))
1398 sym_pointer->e_type[0] |= N_BSS;
1399 else if (bfd_is_und_section (sec))
1400 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1401 else if (bfd_is_com_section (sec))
1402 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1405 (*_bfd_error_handler)
1406 ("%B: can not represent section `%A' in a.out object file format",
1408 bfd_set_error (bfd_error_nonrepresentable_section);
1412 /* Turn the symbol from section relative to absolute again */
1413 value += sec->vma + off;
1415 if ((cache_ptr->flags & BSF_DEBUGGING) != 0)
1416 sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type;
1417 else if ((cache_ptr->flags & BSF_GLOBAL) != 0)
1418 sym_pointer->e_type[0] |= N_EXT;
1420 PUT_WORD(abfd, value, sym_pointer->e_value);
1425 /* Native-level interface to symbols. */
1428 NAME (aout, make_empty_symbol) (bfd *abfd)
1430 bfd_size_type amt = sizeof (aout_symbol_type);
1431 aout_symbol_type *new = bfd_zalloc (abfd, amt);
1435 new->symbol.the_bfd = abfd;
1437 return &new->symbol;
1440 /* Translate a set of internal symbols into external symbols. */
1443 NAME (aout, translate_symbol_table) (bfd *abfd,
1444 aout_symbol_type *in,
1445 struct external_nlist *ext,
1446 bfd_size_type count,
1448 bfd_size_type strsize,
1449 bfd_boolean dynamic)
1451 struct external_nlist *ext_end;
1453 ext_end = ext + count;
1454 for (; ext < ext_end; ext++, in++)
1458 x = GET_WORD (abfd, ext->e_strx);
1459 in->symbol.the_bfd = abfd;
1461 /* For the normal symbols, the zero index points at the number
1462 of bytes in the string table but is to be interpreted as the
1463 null string. For the dynamic symbols, the number of bytes in
1464 the string table is stored in the __DYNAMIC structure and the
1465 zero index points at an actual string. */
1466 if (x == 0 && ! dynamic)
1467 in->symbol.name = "";
1468 else if (x < strsize)
1469 in->symbol.name = str + x;
1473 in->symbol.value = GET_SWORD (abfd, ext->e_value);
1474 /* TODO: is 0 a safe value here? */
1477 in->type = H_GET_8 (abfd, ext->e_type);
1478 in->symbol.udata.p = NULL;
1480 if (! translate_from_native_sym_flags (abfd, in))
1484 in->symbol.flags |= BSF_DYNAMIC;
1490 /* We read the symbols into a buffer, which is discarded when this
1491 function exits. We read the strings into a buffer large enough to
1492 hold them all plus all the cached symbol entries. */
1495 NAME (aout, slurp_symbol_table) (bfd *abfd)
1497 struct external_nlist *old_external_syms;
1498 aout_symbol_type *cached;
1499 bfd_size_type cached_size;
1501 /* If there's no work to be done, don't do any. */
1502 if (obj_aout_symbols (abfd) != NULL)
1505 old_external_syms = obj_aout_external_syms (abfd);
1507 if (! aout_get_external_symbols (abfd))
1510 cached_size = obj_aout_external_sym_count (abfd);
1511 cached_size *= sizeof (aout_symbol_type);
1512 cached = bfd_zmalloc (cached_size);
1513 if (cached == NULL && cached_size != 0)
1516 /* Convert from external symbol information to internal. */
1517 if (! (NAME (aout, translate_symbol_table)
1519 obj_aout_external_syms (abfd),
1520 obj_aout_external_sym_count (abfd),
1521 obj_aout_external_strings (abfd),
1522 obj_aout_external_string_size (abfd),
1529 bfd_get_symcount (abfd) = obj_aout_external_sym_count (abfd);
1531 obj_aout_symbols (abfd) = cached;
1533 /* It is very likely that anybody who calls this function will not
1534 want the external symbol information, so if it was allocated
1535 because of our call to aout_get_external_symbols, we free it up
1536 right away to save space. */
1537 if (old_external_syms == NULL
1538 && obj_aout_external_syms (abfd) != NULL)
1541 bfd_free_window (&obj_aout_sym_window (abfd));
1543 free (obj_aout_external_syms (abfd));
1545 obj_aout_external_syms (abfd) = NULL;
1551 /* We use a hash table when writing out symbols so that we only write
1552 out a particular string once. This helps particularly when the
1553 linker writes out stabs debugging entries, because each different
1554 contributing object file tends to have many duplicate stabs
1557 This hash table code breaks dbx on SunOS 4.1.3, so we don't do it
1558 if BFD_TRADITIONAL_FORMAT is set. */
1560 /* Get the index of a string in a strtab, adding it if it is not
1563 static INLINE bfd_size_type
1564 add_to_stringtab (bfd *abfd,
1565 struct bfd_strtab_hash *tab,
1570 bfd_size_type index;
1572 /* An index of 0 always means the empty string. */
1573 if (str == 0 || *str == '\0')
1576 /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx
1577 doesn't understand a hashed string table. */
1579 if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
1582 index = _bfd_stringtab_add (tab, str, hash, copy);
1584 if (index != (bfd_size_type) -1)
1585 /* Add BYTES_IN_LONG to the return value to account for the
1586 space taken up by the string table size. */
1587 index += BYTES_IN_LONG;
1592 /* Write out a strtab. ABFD is already at the right location in the
1596 emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab)
1598 bfd_byte buffer[BYTES_IN_LONG];
1600 /* The string table starts with the size. */
1601 H_PUT_32 (abfd, _bfd_stringtab_size (tab) + BYTES_IN_LONG, buffer);
1602 if (bfd_bwrite ((void *) buffer, (bfd_size_type) BYTES_IN_LONG, abfd)
1606 return _bfd_stringtab_emit (abfd, tab);
1610 NAME (aout, write_syms) (bfd *abfd)
1612 unsigned int count ;
1613 asymbol **generic = bfd_get_outsymbols (abfd);
1614 struct bfd_strtab_hash *strtab;
1616 strtab = _bfd_stringtab_init ();
1620 for (count = 0; count < bfd_get_symcount (abfd); count++)
1622 asymbol *g = generic[count];
1624 struct external_nlist nsp;
1626 PUT_WORD (abfd, 0, nsp.e_unused);
1628 indx = add_to_stringtab (abfd, strtab, g->name, FALSE);
1629 if (indx == (bfd_size_type) -1)
1631 PUT_WORD (abfd, indx, nsp.e_strx);
1633 if (bfd_asymbol_flavour(g) == abfd->xvec->flavour)
1634 H_PUT_8 (abfd, aout_symbol(g)->type, nsp.e_type);
1636 H_PUT_8 (abfd, 0, nsp.e_type);
1638 if (! translate_to_native_sym_flags (abfd, g, &nsp))
1641 H_PUT_8 (abfd, 0, nsp.e_ovly);
1643 if (bfd_bwrite ((void *)&nsp, (bfd_size_type) EXTERNAL_NLIST_SIZE, abfd)
1644 != EXTERNAL_NLIST_SIZE)
1647 /* NB: `KEEPIT' currently overlays `udata.p', so set this only
1648 here, at the end. */
1652 if (! emit_stringtab (abfd, strtab))
1655 _bfd_stringtab_free (strtab);
1660 _bfd_stringtab_free (strtab);
1666 NAME (aout, canonicalize_symtab) (bfd *abfd, asymbol **location)
1668 unsigned int counter = 0;
1669 aout_symbol_type *symbase;
1671 if (!NAME (aout, slurp_symbol_table) (abfd))
1674 for (symbase = obj_aout_symbols (abfd); counter++ < bfd_get_symcount (abfd);)
1675 *(location++) = (asymbol *)(symbase++);
1677 return bfd_get_symcount (abfd);
1681 /* Output extended relocation information to a file in target byte order. */
1684 pdp11_aout_swap_reloc_out (bfd *abfd, arelent *g, bfd_byte *natptr)
1690 asymbol *sym = *(g->sym_ptr_ptr);
1691 asection *output_section = sym->section->output_section;
1694 fprintf (stderr, "BFD: can't do this reloc addend stuff\n");
1696 r_pcrel = g->howto->pc_relative;
1698 if (bfd_is_abs_section (output_section))
1700 else if (output_section == obj_textsec (abfd))
1702 else if (output_section == obj_datasec (abfd))
1704 else if (output_section == obj_bsssec (abfd))
1706 else if (bfd_is_und_section (output_section))
1708 else if (bfd_is_com_section (output_section))
1713 BFD_ASSERT (r_type != -1);
1718 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
1720 reloc_entry = r_index << 4 | r_type | r_pcrel;
1722 PUT_WORD (abfd, reloc_entry, natptr);
1725 /* BFD deals internally with all things based from the section they're
1726 in. so, something in 10 bytes into a text section with a base of
1727 50 would have a symbol (.text+10) and know .text vma was 50.
1729 Aout keeps all it's symbols based from zero, so the symbol would
1730 contain 60. This macro subs the base of each section from the value
1731 to give the true offset from the section */
1734 #define MOVE_ADDRESS(ad) \
1737 /* Undefined symbol. */ \
1738 cache_ptr->sym_ptr_ptr = symbols + r_index; \
1739 cache_ptr->addend = ad; \
1743 /* Defined, section relative. replace symbol with pointer to \
1744 symbol which points to section. */ \
1748 case N_TEXT | N_EXT: \
1749 cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \
1750 cache_ptr->addend = ad - su->textsec->vma; \
1753 case N_DATA | N_EXT: \
1754 cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \
1755 cache_ptr->addend = ad - su->datasec->vma; \
1758 case N_BSS | N_EXT: \
1759 cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \
1760 cache_ptr->addend = ad - su->bsssec->vma; \
1764 case N_ABS | N_EXT: \
1765 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
1766 cache_ptr->addend = ad; \
1772 pdp11_aout_swap_reloc_in (bfd * abfd,
1774 arelent * cache_ptr,
1775 bfd_size_type offset,
1777 bfd_size_type symcount)
1779 struct aoutdata *su = &(abfd->tdata.aout_data->a);
1780 unsigned int r_index;
1785 reloc_entry = GET_WORD (abfd, (void *) bytes);
1787 r_pcrel = reloc_entry & RELFLG;
1789 cache_ptr->address = offset;
1790 cache_ptr->howto = howto_table_pdp11 + (r_pcrel ? 1 : 0);
1792 if ((reloc_entry & RTYPE) == RABS)
1795 r_index = RINDEX (reloc_entry);
1797 /* r_extern reflects whether the symbol the reloc is against is
1799 r_extern = (reloc_entry & RTYPE) == REXT;
1801 if (r_extern && r_index > symcount)
1803 /* We could arrange to return an error, but it might be useful
1804 to see the file even if it is bad. */
1812 /* Read and swap the relocs for a section. */
1815 NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols)
1818 bfd_size_type count;
1819 bfd_size_type reloc_size;
1821 arelent *reloc_cache;
1823 unsigned int counter = 0;
1826 if (asect->relocation)
1829 if (asect->flags & SEC_CONSTRUCTOR)
1832 if (asect == obj_datasec (abfd))
1833 reloc_size = exec_hdr(abfd)->a_drsize;
1834 else if (asect == obj_textsec (abfd))
1835 reloc_size = exec_hdr(abfd)->a_trsize;
1836 else if (asect == obj_bsssec (abfd))
1840 bfd_set_error (bfd_error_invalid_operation);
1844 if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
1847 each_size = obj_reloc_entry_size (abfd);
1849 relocs = bfd_malloc (reloc_size);
1850 if (relocs == NULL && reloc_size != 0)
1853 if (bfd_bread (relocs, reloc_size, abfd) != reloc_size)
1859 count = reloc_size / each_size;
1861 /* Count the number of NON-ZERO relocs, this is the count we want. */
1863 unsigned int real_count = 0;
1865 for (counter = 0; counter < count; counter++)
1869 x = GET_WORD (abfd, (char *) relocs + each_size * counter);
1877 reloc_cache = bfd_zmalloc (count * sizeof (arelent));
1878 if (reloc_cache == NULL && count != 0)
1881 cache_ptr = reloc_cache;
1886 counter++, rptr += RELOC_SIZE, cache_ptr++)
1888 while (GET_WORD (abfd, (void *) rptr) == 0)
1891 if ((char *) rptr >= (char *) relocs + reloc_size)
1895 pdp11_aout_swap_reloc_in (abfd, rptr, cache_ptr,
1896 (bfd_size_type) ((char *) rptr - (char *) relocs),
1898 (bfd_size_type) bfd_get_symcount (abfd));
1901 /* Just in case, if rptr >= relocs + reloc_size should happen
1903 BFD_ASSERT (counter == count);
1907 asect->relocation = reloc_cache;
1908 asect->reloc_count = cache_ptr - reloc_cache;
1913 /* Write out a relocation section into an object file. */
1916 NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section)
1919 unsigned char *native;
1920 unsigned int count = section->reloc_count;
1921 bfd_size_type natsize;
1923 natsize = section->size;
1924 native = bfd_zalloc (abfd, natsize);
1928 generic = section->orelocation;
1929 if (generic != NULL)
1935 r = native + (*generic)->address;
1936 pdp11_aout_swap_reloc_out (abfd, *generic, r);
1942 if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
1944 bfd_release (abfd, native);
1948 bfd_release (abfd, native);
1952 /* This is stupid. This function should be a boolean predicate. */
1955 NAME (aout, canonicalize_reloc) (bfd *abfd,
1960 arelent *tblptr = section->relocation;
1963 if (section == obj_bsssec (abfd))
1969 if (!(tblptr || NAME (aout, slurp_reloc_table)(abfd, section, symbols)))
1972 if (section->flags & SEC_CONSTRUCTOR)
1974 arelent_chain *chain = section->constructor_chain;
1976 for (count = 0; count < section->reloc_count; count ++)
1978 *relptr ++ = &chain->relent;
1979 chain = chain->next;
1984 tblptr = section->relocation;
1986 for (count = 0; count++ < section->reloc_count;)
1987 *relptr++ = tblptr++;
1992 return section->reloc_count;
1996 NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect)
1998 if (bfd_get_format (abfd) != bfd_object)
2000 bfd_set_error (bfd_error_invalid_operation);
2004 if (asect->flags & SEC_CONSTRUCTOR)
2005 return (sizeof (arelent *) * (asect->reloc_count + 1));
2007 if (asect == obj_datasec (abfd))
2008 return (sizeof (arelent *)
2009 * ((exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd))
2012 if (asect == obj_textsec (abfd))
2013 return (sizeof (arelent *)
2014 * ((exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd))
2017 /* TODO: why are there two if statements for obj_bsssec()? */
2019 if (asect == obj_bsssec (abfd))
2020 return sizeof (arelent *);
2022 if (asect == obj_bsssec (abfd))
2025 bfd_set_error (bfd_error_invalid_operation);
2031 NAME (aout, get_symtab_upper_bound) (bfd *abfd)
2033 if (!NAME (aout, slurp_symbol_table) (abfd))
2036 return (bfd_get_symcount (abfd) + 1) * (sizeof (aout_symbol_type *));
2040 NAME (aout, get_lineno) (bfd * abfd ATTRIBUTE_UNUSED,
2041 asymbol * symbol ATTRIBUTE_UNUSED)
2047 NAME (aout, get_symbol_info) (bfd * abfd ATTRIBUTE_UNUSED,
2051 bfd_symbol_info (symbol, ret);
2053 if (ret->type == '?')
2055 int type_code = aout_symbol(symbol)->type & 0xff;
2056 const char *stab_name = bfd_get_stab_name (type_code);
2057 static char buf[10];
2059 if (stab_name == NULL)
2061 sprintf(buf, "(%d)", type_code);
2065 ret->stab_type = type_code;
2066 ret->stab_other = (unsigned) (aout_symbol(symbol)->other & 0xff);
2067 ret->stab_desc = (unsigned) (aout_symbol(symbol)->desc & 0xffff);
2068 ret->stab_name = stab_name;
2073 NAME (aout, print_symbol) (bfd * abfd,
2076 bfd_print_symbol_type how)
2078 FILE *file = (FILE *) afile;
2082 case bfd_print_symbol_name:
2084 fprintf(file,"%s", symbol->name);
2086 case bfd_print_symbol_more:
2087 fprintf(file,"%4x %2x %2x",
2088 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2089 (unsigned) (aout_symbol (symbol)->other & 0xff),
2090 (unsigned) (aout_symbol (symbol)->type));
2092 case bfd_print_symbol_all:
2094 const char *section_name = symbol->section->name;
2096 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
2098 fprintf (file," %-5s %04x %02x %02x",
2100 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2101 (unsigned) (aout_symbol (symbol)->other & 0xff),
2102 (unsigned) (aout_symbol (symbol)->type & 0xff));
2104 fprintf(file," %s", symbol->name);
2110 /* If we don't have to allocate more than 1MB to hold the generic
2111 symbols, we use the generic minisymbol method: it's faster, since
2112 it only translates the symbols once, not multiple times. */
2113 #define MINISYM_THRESHOLD (1000000 / sizeof (asymbol))
2115 /* Read minisymbols. For minisymbols, we use the unmodified a.out
2116 symbols. The minisymbol_to_symbol function translates these into
2117 BFD asymbol structures. */
2120 NAME (aout, read_minisymbols) (bfd *abfd,
2121 bfd_boolean dynamic,
2123 unsigned int *sizep)
2126 /* We could handle the dynamic symbols here as well, but it's
2127 easier to hand them off. */
2128 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
2130 if (! aout_get_external_symbols (abfd))
2133 if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2134 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
2136 *minisymsp = (void *) obj_aout_external_syms (abfd);
2138 /* By passing the external symbols back from this routine, we are
2139 giving up control over the memory block. Clear
2140 obj_aout_external_syms, so that we do not try to free it
2142 obj_aout_external_syms (abfd) = NULL;
2144 *sizep = EXTERNAL_NLIST_SIZE;
2145 return obj_aout_external_sym_count (abfd);
2148 /* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
2149 unmodified a.out symbol. The SYM argument is a structure returned
2150 by bfd_make_empty_symbol, which we fill in here. */
2153 NAME (aout, minisymbol_to_symbol) (bfd *abfd,
2154 bfd_boolean dynamic,
2155 const void * minisym,
2159 || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2160 return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
2162 memset (sym, 0, sizeof (aout_symbol_type));
2164 /* We call translate_symbol_table to translate a single symbol. */
2165 if (! (NAME (aout, translate_symbol_table)
2167 (aout_symbol_type *) sym,
2168 (struct external_nlist *) minisym,
2170 obj_aout_external_strings (abfd),
2171 obj_aout_external_string_size (abfd),
2178 /* Provided a BFD, a section and an offset into the section, calculate
2179 and return the name of the source file and the line nearest to the
2183 NAME (aout, find_nearest_line) (bfd *abfd,
2187 const char **filename_ptr,
2188 const char **functionname_ptr,
2189 unsigned int *line_ptr)
2191 /* Run down the file looking for the filename, function and linenumber. */
2193 const char *directory_name = NULL;
2194 const char *main_file_name = NULL;
2195 const char *current_file_name = NULL;
2196 const char *line_file_name = NULL; /* Value of current_file_name at line number. */
2197 bfd_vma low_line_vma = 0;
2198 bfd_vma low_func_vma = 0;
2200 size_t filelen, funclen;
2203 *filename_ptr = abfd->filename;
2204 *functionname_ptr = 0;
2207 if (symbols != NULL)
2209 for (p = symbols; *p; p++)
2211 aout_symbol_type *q = (aout_symbol_type *)(*p);
2216 /* If this looks like a file name symbol, and it comes after
2217 the line number we have found so far, but before the
2218 offset, then we have probably not found the right line
2220 if (q->symbol.value <= offset
2221 && ((q->symbol.value > low_line_vma
2222 && (line_file_name != NULL
2224 || (q->symbol.value > low_func_vma
2227 const char * symname;
2229 symname = q->symbol.name;
2230 if (strcmp (symname + strlen (symname) - 2, ".o") == 0)
2232 if (q->symbol.value > low_line_vma)
2235 line_file_name = NULL;
2237 if (q->symbol.value > low_func_vma)
2244 /* If this symbol is less than the offset, but greater than
2245 the line number we have found so far, then we have not
2246 found the right line number. */
2247 if (q->symbol.value <= offset)
2249 if (q->symbol.value > low_line_vma)
2252 line_file_name = NULL;
2254 if (q->symbol.value > low_func_vma)
2258 main_file_name = current_file_name = q->symbol.name;
2259 /* Look ahead to next symbol to check if that too is an N_SO. */
2263 q = (aout_symbol_type *)(*p);
2264 if (q->type != (int) N_SO)
2267 /* Found a second N_SO First is directory; second is filename. */
2268 directory_name = current_file_name;
2269 main_file_name = current_file_name = q->symbol.name;
2270 if (obj_textsec(abfd) != section)
2274 current_file_name = q->symbol.name;
2280 /* We'll keep this if it resolves nearer than the one we have
2282 if (q->symbol.value >= low_line_vma
2283 && q->symbol.value <= offset)
2285 *line_ptr = q->desc;
2286 low_line_vma = q->symbol.value;
2287 line_file_name = current_file_name;
2293 /* We'll keep this if it is nearer than the one we have already. */
2294 if (q->symbol.value >= low_func_vma &&
2295 q->symbol.value <= offset)
2297 low_func_vma = q->symbol.value;
2298 func = (asymbol *) q;
2300 else if (q->symbol.value > offset)
2310 main_file_name = line_file_name;
2312 if (main_file_name == NULL
2313 || main_file_name[0] == '/'
2314 || directory_name == NULL)
2317 filelen = strlen (directory_name) + strlen (main_file_name);
2321 funclen = strlen (bfd_asymbol_name (func));
2323 if (adata (abfd).line_buf != NULL)
2324 free (adata (abfd).line_buf);
2325 if (filelen + funclen == 0)
2326 adata (abfd).line_buf = buf = NULL;
2329 buf = bfd_malloc ((bfd_size_type) filelen + funclen + 3);
2330 adata (abfd).line_buf = buf;
2335 if (main_file_name != NULL)
2337 if (main_file_name[0] == '/' || directory_name == NULL)
2338 *filename_ptr = main_file_name;
2341 sprintf (buf, "%s%s", directory_name, main_file_name);
2342 *filename_ptr = buf;
2349 const char *function = func->name;
2352 /* The caller expects a symbol name. We actually have a
2353 function name, without the leading underscore. Put the
2354 underscore back in, so that the caller gets a symbol name. */
2355 if (bfd_get_symbol_leading_char (abfd) == '\0')
2356 strcpy (buf, function);
2359 buf[0] = bfd_get_symbol_leading_char (abfd);
2360 strcpy (buf + 1, function);
2363 /* Have to remove : stuff. */
2364 colon = strchr (buf, ':');
2367 *functionname_ptr = buf;
2374 NAME (aout, sizeof_headers) (bfd *abfd,
2375 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2377 return adata (abfd).exec_bytes_size;
2380 /* Free all information we have cached for this BFD. We can always
2381 read it again later if we need it. */
2384 NAME (aout, bfd_free_cached_info) (bfd *abfd)
2388 if (bfd_get_format (abfd) != bfd_object)
2391 #define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
2392 BFCI_FREE (obj_aout_symbols (abfd));
2395 obj_aout_external_syms (abfd) = 0;
2396 bfd_free_window (&obj_aout_sym_window (abfd));
2397 bfd_free_window (&obj_aout_string_window (abfd));
2398 obj_aout_external_strings (abfd) = 0;
2400 BFCI_FREE (obj_aout_external_syms (abfd));
2401 BFCI_FREE (obj_aout_external_strings (abfd));
2403 for (o = abfd->sections; o != NULL; o = o->next)
2404 BFCI_FREE (o->relocation);
2410 /* Routine to create an entry in an a.out link hash table. */
2412 struct bfd_hash_entry *
2413 NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry,
2414 struct bfd_hash_table *table,
2417 struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry;
2419 /* Allocate the structure if it has not already been allocated by a
2422 ret = bfd_hash_allocate (table, sizeof (* ret));
2426 /* Call the allocation method of the superclass. */
2427 ret = (struct aout_link_hash_entry *)
2428 _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string);
2431 /* Set local fields. */
2432 ret->written = FALSE;
2436 return (struct bfd_hash_entry *) ret;
2439 /* Initialize an a.out link hash table. */
2442 NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table,
2444 struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *,
2445 struct bfd_hash_table *,
2447 unsigned int entsize)
2449 return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize);
2452 /* Create an a.out link hash table. */
2454 struct bfd_link_hash_table *
2455 NAME (aout, link_hash_table_create) (bfd *abfd)
2457 struct aout_link_hash_table *ret;
2458 bfd_size_type amt = sizeof (struct aout_link_hash_table);
2460 ret = bfd_alloc (abfd, amt);
2463 if (! NAME (aout, link_hash_table_init) (ret, abfd,
2464 NAME (aout, link_hash_newfunc),
2465 sizeof (struct aout_link_hash_entry)))
2473 /* Free up the internal symbols read from an a.out file. */
2476 aout_link_free_symbols (bfd *abfd)
2478 if (obj_aout_external_syms (abfd) != NULL)
2481 bfd_free_window (&obj_aout_sym_window (abfd));
2483 free ((void *) obj_aout_external_syms (abfd));
2485 obj_aout_external_syms (abfd) = NULL;
2488 if (obj_aout_external_strings (abfd) != NULL)
2491 bfd_free_window (&obj_aout_string_window (abfd));
2493 free ((void *) obj_aout_external_strings (abfd));
2495 obj_aout_external_strings (abfd) = NULL;
2500 /* Given an a.out BFD, add symbols to the global hash table as
2504 NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
2506 switch (bfd_get_format (abfd))
2509 return aout_link_add_object_symbols (abfd, info);
2511 return _bfd_generic_link_add_archive_symbols
2512 (abfd, info, aout_link_check_archive_element);
2514 bfd_set_error (bfd_error_wrong_format);
2519 /* Add symbols from an a.out object file. */
2522 aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
2524 if (! aout_get_external_symbols (abfd))
2526 if (! aout_link_add_symbols (abfd, info))
2528 if (! info->keep_memory)
2530 if (! aout_link_free_symbols (abfd))
2536 /* Look through the internal symbols to see if this object file should
2537 be included in the link. We should include this object file if it
2538 defines any symbols which are currently undefined. If this object
2539 file defines a common symbol, then we may adjust the size of the
2540 known symbol but we do not include the object file in the link
2541 (unless there is some other reason to include it). */
2544 aout_link_check_ar_symbols (bfd *abfd,
2545 struct bfd_link_info *info,
2546 bfd_boolean *pneeded)
2548 struct external_nlist *p;
2549 struct external_nlist *pend;
2554 /* Look through all the symbols. */
2555 p = obj_aout_external_syms (abfd);
2556 pend = p + obj_aout_external_sym_count (abfd);
2557 strings = obj_aout_external_strings (abfd);
2558 for (; p < pend; p++)
2560 int type = H_GET_8 (abfd, p->e_type);
2562 struct bfd_link_hash_entry *h;
2564 /* Ignore symbols that are not externally visible. This is an
2565 optimization only, as we check the type more thoroughly
2567 if ((type & N_EXT) == 0
2571 name = strings + GET_WORD (abfd, p->e_strx);
2572 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
2574 /* We are only interested in symbols that are currently
2575 undefined or common. */
2577 || (h->type != bfd_link_hash_undefined
2578 && h->type != bfd_link_hash_common))
2581 if (type == (N_TEXT | N_EXT)
2582 || type == (N_DATA | N_EXT)
2583 || type == (N_BSS | N_EXT)
2584 || type == (N_ABS | N_EXT))
2586 /* This object file defines this symbol. We must link it
2587 in. This is true regardless of whether the current
2588 definition of the symbol is undefined or common. If the
2589 current definition is common, we have a case in which we
2590 have already seen an object file including
2592 and this object file from the archive includes
2594 In such a case we must include this object file.
2596 FIXME: The SunOS 4.1.3 linker will pull in the archive
2597 element if the symbol is defined in the .data section,
2598 but not if it is defined in the .text section. That
2599 seems a bit crazy to me, and I haven't implemented it.
2600 However, it might be correct. */
2601 if (! (*info->callbacks->add_archive_element) (info, abfd, name))
2607 if (type == (N_UNDF | N_EXT))
2611 value = GET_WORD (abfd, p->e_value);
2614 /* This symbol is common in the object from the archive
2616 if (h->type == bfd_link_hash_undefined)
2621 symbfd = h->u.undef.abfd;
2624 /* This symbol was created as undefined from
2625 outside BFD. We assume that we should link
2626 in the object file. This is done for the -u
2627 option in the linker. */
2628 if (! (*info->callbacks->add_archive_element)
2634 /* Turn the current link symbol into a common
2635 symbol. It is already on the undefs list. */
2636 h->type = bfd_link_hash_common;
2637 h->u.c.p = bfd_hash_allocate (&info->hash->table,
2638 sizeof (struct bfd_link_hash_common_entry));
2639 if (h->u.c.p == NULL)
2642 h->u.c.size = value;
2644 /* FIXME: This isn't quite right. The maximum
2645 alignment of a common symbol should be set by the
2646 architecture of the output file, not of the input
2648 power = bfd_log2 (value);
2649 if (power > bfd_get_arch_info (abfd)->section_align_power)
2650 power = bfd_get_arch_info (abfd)->section_align_power;
2651 h->u.c.p->alignment_power = power;
2653 h->u.c.p->section = bfd_make_section_old_way (symbfd,
2658 /* Adjust the size of the common symbol if
2660 if (value > h->u.c.size)
2661 h->u.c.size = value;
2667 /* We do not need this object file. */
2671 /* Check a single archive element to see if we need to include it in
2672 the link. *PNEEDED is set according to whether this element is
2673 needed in the link or not. This is called from
2674 _bfd_generic_link_add_archive_symbols. */
2677 aout_link_check_archive_element (bfd *abfd,
2678 struct bfd_link_info *info,
2679 bfd_boolean *pneeded)
2681 if (! aout_get_external_symbols (abfd))
2684 if (! aout_link_check_ar_symbols (abfd, info, pneeded))
2689 if (! aout_link_add_symbols (abfd, info))
2693 if (! info->keep_memory || ! *pneeded)
2695 if (! aout_link_free_symbols (abfd))
2702 /* Add all symbols from an object file to the hash table. */
2705 aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
2707 bfd_boolean (*add_one_symbol)
2708 (struct bfd_link_info *, bfd *, const char *, flagword, asection *,
2709 bfd_vma, const char *, bfd_boolean, bfd_boolean,
2710 struct bfd_link_hash_entry **);
2711 struct external_nlist *syms;
2712 bfd_size_type sym_count;
2715 struct aout_link_hash_entry **sym_hash;
2716 struct external_nlist *p;
2717 struct external_nlist *pend;
2719 syms = obj_aout_external_syms (abfd);
2720 sym_count = obj_aout_external_sym_count (abfd);
2721 strings = obj_aout_external_strings (abfd);
2722 if (info->keep_memory)
2727 if (aout_backend_info (abfd)->add_dynamic_symbols != NULL)
2729 if (! ((*aout_backend_info (abfd)->add_dynamic_symbols)
2730 (abfd, info, &syms, &sym_count, &strings)))
2734 /* We keep a list of the linker hash table entries that correspond
2735 to particular symbols. We could just look them up in the hash
2736 table, but keeping the list is more efficient. Perhaps this
2737 should be conditional on info->keep_memory. */
2738 sym_hash = bfd_alloc (abfd,
2739 sym_count * sizeof (struct aout_link_hash_entry *));
2740 if (sym_hash == NULL && sym_count != 0)
2742 obj_aout_sym_hashes (abfd) = sym_hash;
2744 add_one_symbol = aout_backend_info (abfd)->add_one_symbol;
2745 if (add_one_symbol == NULL)
2746 add_one_symbol = _bfd_generic_link_add_one_symbol;
2749 pend = p + sym_count;
2750 for (; p < pend; p++, sym_hash++)
2761 type = H_GET_8 (abfd, p->e_type);
2763 name = strings + GET_WORD (abfd, p->e_strx);
2764 value = GET_WORD (abfd, p->e_value);
2779 /* Ignore symbols that are not externally visible. */
2782 case N_UNDF | N_EXT:
2785 section = bfd_und_section_ptr;
2789 section = bfd_com_section_ptr;
2792 section = bfd_abs_section_ptr;
2794 case N_TEXT | N_EXT:
2795 section = obj_textsec (abfd);
2796 value -= bfd_get_section_vma (abfd, section);
2798 case N_DATA | N_EXT:
2799 /* Treat N_SETV symbols as N_DATA symbol; see comment in
2800 translate_from_native_sym_flags. */
2801 section = obj_datasec (abfd);
2802 value -= bfd_get_section_vma (abfd, section);
2805 section = obj_bsssec (abfd);
2806 value -= bfd_get_section_vma (abfd, section);
2810 if (! ((*add_one_symbol)
2811 (info, abfd, name, flags, section, value, string, copy, FALSE,
2812 (struct bfd_link_hash_entry **) sym_hash)))
2815 /* Restrict the maximum alignment of a common symbol based on
2816 the architecture, since a.out has no way to represent
2817 alignment requirements of a section in a .o file. FIXME:
2818 This isn't quite right: it should use the architecture of the
2819 output file, not the input files. */
2820 if ((*sym_hash)->root.type == bfd_link_hash_common
2821 && ((*sym_hash)->root.u.c.p->alignment_power >
2822 bfd_get_arch_info (abfd)->section_align_power))
2823 (*sym_hash)->root.u.c.p->alignment_power =
2824 bfd_get_arch_info (abfd)->section_align_power;
2826 /* If this is a set symbol, and we are not building sets, then
2827 it is possible for the hash entry to not have been set. In
2828 such a case, treat the symbol as not globally defined. */
2829 if ((*sym_hash)->root.type == bfd_link_hash_new)
2831 BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0);
2839 /* Look up an entry in an the header file hash table. */
2841 #define aout_link_includes_lookup(table, string, create, copy) \
2842 ((struct aout_link_includes_entry *) \
2843 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
2845 /* The function to create a new entry in the header file hash table. */
2847 static struct bfd_hash_entry *
2848 aout_link_includes_newfunc (struct bfd_hash_entry *entry,
2849 struct bfd_hash_table *table,
2852 struct aout_link_includes_entry * ret =
2853 (struct aout_link_includes_entry *) entry;
2855 /* Allocate the structure if it has not already been allocated by a
2858 ret = bfd_hash_allocate (table,
2859 sizeof (struct aout_link_includes_entry));
2863 /* Call the allocation method of the superclass. */
2864 ret = ((struct aout_link_includes_entry *)
2865 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
2867 /* Set local fields. */
2870 return (struct bfd_hash_entry *) ret;
2874 aout_link_write_other_symbol (struct aout_link_hash_entry *h, void * data)
2876 struct aout_final_link_info *finfo = (struct aout_final_link_info *) data;
2880 struct external_nlist outsym;
2884 if (h->root.type == bfd_link_hash_warning)
2886 h = (struct aout_link_hash_entry *) h->root.u.i.link;
2887 if (h->root.type == bfd_link_hash_new)
2891 output_bfd = finfo->output_bfd;
2893 if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
2895 if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
2896 (output_bfd, finfo->info, h)))
2898 /* FIXME: No way to handle errors. */
2908 /* An indx of -2 means the symbol must be written. */
2910 && (finfo->info->strip == strip_all
2911 || (finfo->info->strip == strip_some
2912 && bfd_hash_lookup (finfo->info->keep_hash, h->root.root.string,
2913 FALSE, FALSE) == NULL)))
2916 switch (h->root.type)
2920 /* Avoid variable not initialized warnings. */
2922 case bfd_link_hash_new:
2923 /* This can happen for set symbols when sets are not being
2926 case bfd_link_hash_undefined:
2927 type = N_UNDF | N_EXT;
2930 case bfd_link_hash_defined:
2931 case bfd_link_hash_defweak:
2935 sec = h->root.u.def.section->output_section;
2936 BFD_ASSERT (bfd_is_abs_section (sec)
2937 || sec->owner == output_bfd);
2938 if (sec == obj_textsec (output_bfd))
2939 type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
2940 else if (sec == obj_datasec (output_bfd))
2941 type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
2942 else if (sec == obj_bsssec (output_bfd))
2943 type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
2945 type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
2947 val = (h->root.u.def.value
2949 + h->root.u.def.section->output_offset);
2952 case bfd_link_hash_common:
2953 type = N_UNDF | N_EXT;
2954 val = h->root.u.c.size;
2956 case bfd_link_hash_undefweak:
2959 case bfd_link_hash_indirect:
2960 case bfd_link_hash_warning:
2961 /* FIXME: Ignore these for now. The circumstances under which
2962 they should be written out are not clear to me. */
2966 H_PUT_8 (output_bfd, type, outsym.e_type);
2967 indx = add_to_stringtab (output_bfd, finfo->strtab, h->root.root.string,
2969 if (indx == (bfd_size_type) -1)
2970 /* FIXME: No way to handle errors. */
2973 PUT_WORD (output_bfd, indx, outsym.e_strx);
2974 PUT_WORD (output_bfd, val, outsym.e_value);
2976 amt = EXTERNAL_NLIST_SIZE;
2977 if (bfd_seek (output_bfd, finfo->symoff, SEEK_SET) != 0
2978 || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt)
2979 /* FIXME: No way to handle errors. */
2982 finfo->symoff += amt;
2983 h->indx = obj_aout_external_sym_count (output_bfd);
2984 ++obj_aout_external_sym_count (output_bfd);
2989 /* Handle a link order which is supposed to generate a reloc. */
2992 aout_link_reloc_link_order (struct aout_final_link_info *finfo,
2994 struct bfd_link_order *p)
2996 struct bfd_link_order_reloc *pr;
2999 reloc_howto_type *howto;
3000 file_ptr *reloff_ptr;
3001 struct reloc_std_external srel;
3003 bfd_size_type rel_size;
3007 if (p->type == bfd_section_reloc_link_order)
3010 if (bfd_is_abs_section (pr->u.section))
3011 r_index = N_ABS | N_EXT;
3014 BFD_ASSERT (pr->u.section->owner == finfo->output_bfd);
3015 r_index = pr->u.section->target_index;
3020 struct aout_link_hash_entry *h;
3022 BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
3024 h = ((struct aout_link_hash_entry *)
3025 bfd_wrapped_link_hash_lookup (finfo->output_bfd, finfo->info,
3026 pr->u.name, FALSE, FALSE, TRUE));
3032 /* We decided to strip this symbol, but it turns out that we
3033 can't. Note that we lose the other and desc information
3034 here. I don't think that will ever matter for a global
3038 if (! aout_link_write_other_symbol (h, (void *) finfo))
3044 if (! ((*finfo->info->callbacks->unattached_reloc)
3045 (finfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0)))
3051 howto = bfd_reloc_type_lookup (finfo->output_bfd, pr->reloc);
3054 bfd_set_error (bfd_error_bad_value);
3058 if (o == obj_textsec (finfo->output_bfd))
3059 reloff_ptr = &finfo->treloff;
3060 else if (o == obj_datasec (finfo->output_bfd))
3061 reloff_ptr = &finfo->dreloff;
3066 MY_put_reloc(finfo->output_bfd, r_extern, r_index, p->offset, howto,
3076 fprintf (stderr, "TODO: line %d in bfd/pdp11.c\n", __LINE__);
3078 r_pcrel = howto->pc_relative;
3079 r_baserel = (howto->type & 8) != 0;
3080 r_jmptable = (howto->type & 16) != 0;
3081 r_relative = (howto->type & 32) != 0;
3082 r_length = howto->size;
3084 PUT_WORD (finfo->output_bfd, p->offset, srel.r_address);
3085 if (bfd_header_big_endian (finfo->output_bfd))
3087 srel.r_index[0] = r_index >> 16;
3088 srel.r_index[1] = r_index >> 8;
3089 srel.r_index[2] = r_index;
3091 ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
3092 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
3093 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
3094 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
3095 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
3096 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
3100 srel.r_index[2] = r_index >> 16;
3101 srel.r_index[1] = r_index >> 8;
3102 srel.r_index[0] = r_index;
3104 ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
3105 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
3106 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
3107 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
3108 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
3109 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
3113 rel_ptr = (void *) &srel;
3115 /* We have to write the addend into the object file, since
3116 standard a.out relocs are in place. It would be more
3117 reliable if we had the current contents of the file here,
3118 rather than assuming zeroes, but we can't read the file since
3119 it was opened using bfd_openw. */
3120 if (pr->addend != 0)
3123 bfd_reloc_status_type r;
3127 size = bfd_get_reloc_size (howto);
3128 buf = bfd_zmalloc (size);
3131 r = MY_relocate_contents (howto, finfo->output_bfd,
3138 case bfd_reloc_outofrange:
3140 case bfd_reloc_overflow:
3141 if (! ((*finfo->info->callbacks->reloc_overflow)
3143 (p->type == bfd_section_reloc_link_order
3144 ? bfd_section_name (finfo->output_bfd,
3147 howto->name, pr->addend, NULL,
3148 (asection *) NULL, (bfd_vma) 0)))
3155 ok = bfd_set_section_contents (finfo->output_bfd, o,
3157 (file_ptr) p->offset,
3164 rel_size = obj_reloc_entry_size (finfo->output_bfd);
3165 if (bfd_seek (finfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
3166 || bfd_bwrite (rel_ptr, rel_size, finfo->output_bfd) != rel_size)
3169 *reloff_ptr += rel_size;
3171 /* Assert that the relocs have not run into the symbols, and that n
3172 the text relocs have not run into the data relocs. */
3173 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (finfo->output_bfd)
3174 && (reloff_ptr != &finfo->treloff
3176 <= obj_datasec (finfo->output_bfd)->rel_filepos)));
3181 /* Get the section corresponding to a reloc index. */
3183 static inline asection *
3184 aout_reloc_type_to_section (bfd *abfd, int type)
3188 case RTEXT: return obj_textsec (abfd);
3189 case RDATA: return obj_datasec (abfd);
3190 case RBSS: return obj_bsssec (abfd);
3191 case RABS: return bfd_abs_section_ptr;
3192 case REXT: return bfd_und_section_ptr;
3198 pdp11_aout_link_input_section (struct aout_final_link_info *finfo,
3200 asection *input_section,
3202 bfd_size_type rel_size,
3205 bfd_boolean (*check_dynamic_reloc)
3206 (struct bfd_link_info *, bfd *, asection *,
3207 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
3210 bfd_boolean relocatable;
3211 struct external_nlist *syms;
3213 struct aout_link_hash_entry **sym_hashes;
3215 bfd_size_type reloc_count;
3219 output_bfd = finfo->output_bfd;
3220 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
3222 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_SIZE);
3223 BFD_ASSERT (input_bfd->xvec->header_byteorder
3224 == output_bfd->xvec->header_byteorder);
3226 relocatable = finfo->info->relocatable;
3227 syms = obj_aout_external_syms (input_bfd);
3228 strings = obj_aout_external_strings (input_bfd);
3229 sym_hashes = obj_aout_sym_hashes (input_bfd);
3230 symbol_map = finfo->symbol_map;
3232 reloc_count = rel_size / RELOC_SIZE;
3234 rel_end = rel + rel_size;
3235 for (; rel < rel_end; rel += RELOC_SIZE)
3242 reloc_howto_type *howto;
3243 struct aout_link_hash_entry *h = NULL;
3245 bfd_reloc_status_type r;
3248 reloc_entry = GET_WORD (input_bfd, (void *) rel);
3249 if (reloc_entry == 0)
3253 unsigned int howto_idx;
3255 r_index = (reloc_entry & RIDXMASK) >> 4;
3256 r_type = reloc_entry & RTYPE;
3257 r_pcrel = reloc_entry & RELFLG;
3258 r_addr = (char *) rel - (char *) relocs;
3260 r_extern = (r_type == REXT);
3262 howto_idx = r_pcrel;
3263 BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_pdp11));
3264 howto = howto_table_pdp11 + howto_idx;
3269 /* We are generating a relocatable output file, and must
3270 modify the reloc accordingly. */
3273 /* If we know the symbol this relocation is against,
3274 convert it into a relocation against a section. This
3275 is what the native linker does. */
3276 h = sym_hashes[r_index];
3278 && (h->root.type == bfd_link_hash_defined
3279 || h->root.type == bfd_link_hash_defweak))
3281 asection *output_section;
3283 /* Compute a new r_index. */
3284 output_section = h->root.u.def.section->output_section;
3285 if (output_section == obj_textsec (output_bfd))
3287 else if (output_section == obj_datasec (output_bfd))
3289 else if (output_section == obj_bsssec (output_bfd))
3294 /* Add the symbol value and the section VMA to the
3295 addend stored in the contents. */
3296 relocation = (h->root.u.def.value
3297 + output_section->vma
3298 + h->root.u.def.section->output_offset);
3302 /* We must change r_index according to the symbol
3304 r_index = symbol_map[r_index];
3310 /* We decided to strip this symbol, but it
3311 turns out that we can't. Note that we
3312 lose the other and desc information here.
3313 I don't think that will ever matter for a
3319 if (! aout_link_write_other_symbol (h,
3329 name = strings + GET_WORD (input_bfd,
3330 syms[r_index].e_strx);
3331 if (! ((*finfo->info->callbacks->unattached_reloc)
3332 (finfo->info, name, input_bfd, input_section,
3342 /* Write out the new r_index value. */
3343 reloc_entry = GET_WORD (input_bfd, rel);
3344 reloc_entry &= RIDXMASK;
3345 reloc_entry |= r_index << 4;
3346 PUT_WORD (input_bfd, reloc_entry, rel);
3352 /* This is a relocation against a section. We must
3353 adjust by the amount that the section moved. */
3354 section = aout_reloc_type_to_section (input_bfd, r_type);
3355 relocation = (section->output_section->vma
3356 + section->output_offset
3360 /* Change the address of the relocation. */
3361 fprintf (stderr, "TODO: change the address of the relocation\n");
3363 /* Adjust a PC relative relocation by removing the reference
3364 to the original address in the section and including the
3365 reference to the new address. */
3367 relocation -= (input_section->output_section->vma
3368 + input_section->output_offset
3369 - input_section->vma);
3371 #ifdef MY_relocatable_reloc
3372 MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
3375 if (relocation == 0)
3378 r = MY_relocate_contents (howto,
3379 input_bfd, relocation,
3386 /* We are generating an executable, and must do a full
3391 h = sym_hashes[r_index];
3394 && (h->root.type == bfd_link_hash_defined
3395 || h->root.type == bfd_link_hash_defweak))
3397 relocation = (h->root.u.def.value
3398 + h->root.u.def.section->output_section->vma
3399 + h->root.u.def.section->output_offset);
3402 && h->root.type == bfd_link_hash_undefweak)
3414 section = aout_reloc_type_to_section (input_bfd, r_type);
3415 relocation = (section->output_section->vma
3416 + section->output_offset
3419 relocation += input_section->vma;
3422 if (check_dynamic_reloc != NULL)
3426 if (! ((*check_dynamic_reloc)
3427 (finfo->info, input_bfd, input_section, h,
3428 (void *) rel, contents, &skip, &relocation)))
3434 /* Now warn if a global symbol is undefined. We could not
3435 do this earlier, because check_dynamic_reloc might want
3436 to skip this reloc. */
3437 if (hundef && ! finfo->info->shared)
3442 name = h->root.root.string;
3444 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
3445 if (! ((*finfo->info->callbacks->undefined_symbol)
3446 (finfo->info, name, input_bfd, input_section,
3451 r = MY_final_link_relocate (howto,
3452 input_bfd, input_section,
3453 contents, r_addr, relocation,
3457 if (r != bfd_reloc_ok)
3462 case bfd_reloc_outofrange:
3464 case bfd_reloc_overflow:
3471 name = strings + GET_WORD (input_bfd,
3472 syms[r_index].e_strx);
3477 s = aout_reloc_type_to_section (input_bfd, r_type);
3478 name = bfd_section_name (input_bfd, s);
3480 if (! ((*finfo->info->callbacks->reloc_overflow)
3481 (finfo->info, (h ? &h->root : NULL), name,
3482 howto->name, (bfd_vma) 0, input_bfd,
3483 input_section, r_addr)))
3494 /* Link an a.out section into the output file. */
3497 aout_link_input_section (struct aout_final_link_info *finfo,
3499 asection *input_section,
3500 file_ptr *reloff_ptr,
3501 bfd_size_type rel_size)
3503 bfd_size_type input_size;
3506 /* Get the section contents. */
3507 input_size = input_section->size;
3508 if (! bfd_get_section_contents (input_bfd, input_section,
3509 (void *) finfo->contents,
3510 (file_ptr) 0, input_size))
3513 /* Read in the relocs if we haven't already done it. */
3514 if (aout_section_data (input_section) != NULL
3515 && aout_section_data (input_section)->relocs != NULL)
3516 relocs = aout_section_data (input_section)->relocs;
3519 relocs = finfo->relocs;
3522 if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
3523 || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
3528 /* Relocate the section contents. */
3529 if (! pdp11_aout_link_input_section (finfo, input_bfd, input_section,
3530 (bfd_byte *) relocs,
3531 rel_size, finfo->contents))
3534 /* Write out the section contents. */
3535 if (! bfd_set_section_contents (finfo->output_bfd,
3536 input_section->output_section,
3537 (void *) finfo->contents,
3538 (file_ptr) input_section->output_offset,
3542 /* If we are producing relocatable output, the relocs were
3543 modified, and we now write them out. */
3544 if (finfo->info->relocatable && rel_size > 0)
3546 if (bfd_seek (finfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
3548 if (bfd_bwrite (relocs, rel_size, finfo->output_bfd) != rel_size)
3550 *reloff_ptr += rel_size;
3552 /* Assert that the relocs have not run into the symbols, and
3553 that if these are the text relocs they have not run into the
3555 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (finfo->output_bfd)
3556 && (reloff_ptr != &finfo->treloff
3558 <= obj_datasec (finfo->output_bfd)->rel_filepos)));
3564 /* Link an a.out input BFD into the output file. */
3567 aout_link_input_bfd (struct aout_final_link_info *finfo, bfd *input_bfd)
3569 bfd_size_type sym_count;
3571 BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
3573 /* If this is a dynamic object, it may need special handling. */
3574 if ((input_bfd->flags & DYNAMIC) != 0
3575 && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
3576 return ((*aout_backend_info (input_bfd)->link_dynamic_object)
3577 (finfo->info, input_bfd));
3579 /* Get the symbols. We probably have them already, unless
3580 finfo->info->keep_memory is FALSE. */
3581 if (! aout_get_external_symbols (input_bfd))
3584 sym_count = obj_aout_external_sym_count (input_bfd);
3586 /* Write out the symbols and get a map of the new indices. The map
3587 is placed into finfo->symbol_map. */
3588 if (! aout_link_write_symbols (finfo, input_bfd))
3591 /* Relocate and write out the sections. These functions use the
3592 symbol map created by aout_link_write_symbols. The linker_mark
3593 field will be set if these sections are to be included in the
3594 link, which will normally be the case. */
3595 if (obj_textsec (input_bfd)->linker_mark)
3597 if (! aout_link_input_section (finfo, input_bfd,
3598 obj_textsec (input_bfd),
3600 exec_hdr (input_bfd)->a_trsize))
3603 if (obj_datasec (input_bfd)->linker_mark)
3605 if (! aout_link_input_section (finfo, input_bfd,
3606 obj_datasec (input_bfd),
3608 exec_hdr (input_bfd)->a_drsize))
3612 /* If we are not keeping memory, we don't need the symbols any
3613 longer. We still need them if we are keeping memory, because the
3614 strings in the hash table point into them. */
3615 if (! finfo->info->keep_memory)
3617 if (! aout_link_free_symbols (input_bfd))
3624 /* Do the final link step. This is called on the output BFD. The
3625 INFO structure should point to a list of BFDs linked through the
3626 link_next field which can be used to find each BFD which takes part
3627 in the output. Also, each section in ABFD should point to a list
3628 of bfd_link_order structures which list all the input sections for
3629 the output section. */
3632 NAME (aout, final_link) (bfd *abfd,
3633 struct bfd_link_info *info,
3634 void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *))
3636 struct aout_final_link_info aout_info;
3637 bfd_boolean includes_hash_initialized = FALSE;
3639 bfd_size_type trsize, drsize;
3640 bfd_size_type max_contents_size;
3641 bfd_size_type max_relocs_size;
3642 bfd_size_type max_sym_count;
3643 bfd_size_type text_size;
3645 struct bfd_link_order *p;
3647 bfd_boolean have_link_order_relocs;
3650 abfd->flags |= DYNAMIC;
3652 aout_info.info = info;
3653 aout_info.output_bfd = abfd;
3654 aout_info.contents = NULL;
3655 aout_info.relocs = NULL;
3656 aout_info.symbol_map = NULL;
3657 aout_info.output_syms = NULL;
3659 if (!bfd_hash_table_init_n (&aout_info.includes.root,
3660 aout_link_includes_newfunc,
3661 sizeof (struct aout_link_includes_entry),
3664 includes_hash_initialized = TRUE;
3666 /* Figure out the largest section size. Also, if generating
3667 relocatable output, count the relocs. */
3670 max_contents_size = 0;
3671 max_relocs_size = 0;
3673 for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
3677 if (info->relocatable)
3679 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
3681 trsize += exec_hdr (sub)->a_trsize;
3682 drsize += exec_hdr (sub)->a_drsize;
3686 /* FIXME: We need to identify the .text and .data sections
3687 and call get_reloc_upper_bound and canonicalize_reloc to
3688 work out the number of relocs needed, and then multiply
3689 by the reloc size. */
3690 (*_bfd_error_handler)
3691 ("%s: relocatable link from %s to %s not supported",
3692 bfd_get_filename (abfd),
3693 sub->xvec->name, abfd->xvec->name);
3694 bfd_set_error (bfd_error_invalid_operation);
3699 if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
3701 sz = obj_textsec (sub)->size;
3702 if (sz > max_contents_size)
3703 max_contents_size = sz;
3704 sz = obj_datasec (sub)->size;
3705 if (sz > max_contents_size)
3706 max_contents_size = sz;
3708 sz = exec_hdr (sub)->a_trsize;
3709 if (sz > max_relocs_size)
3710 max_relocs_size = sz;
3711 sz = exec_hdr (sub)->a_drsize;
3712 if (sz > max_relocs_size)
3713 max_relocs_size = sz;
3715 sz = obj_aout_external_sym_count (sub);
3716 if (sz > max_sym_count)
3721 if (info->relocatable)
3723 if (obj_textsec (abfd) != NULL)
3724 trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
3725 ->map_head.link_order)
3726 * obj_reloc_entry_size (abfd));
3727 if (obj_datasec (abfd) != NULL)
3728 drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
3729 ->map_head.link_order)
3730 * obj_reloc_entry_size (abfd));
3733 exec_hdr (abfd)->a_trsize = trsize;
3734 exec_hdr (abfd)->a_drsize = drsize;
3735 exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
3737 /* Adjust the section sizes and vmas according to the magic number.
3738 This sets a_text, a_data and a_bss in the exec_hdr and sets the
3739 filepos for each section. */
3740 if (! NAME (aout, adjust_sizes_and_vmas) (abfd, &text_size, &text_end))
3743 /* The relocation and symbol file positions differ among a.out
3744 targets. We are passed a callback routine from the backend
3745 specific code to handle this.
3746 FIXME: At this point we do not know how much space the symbol
3747 table will require. This will not work for any (nonstandard)
3748 a.out target that needs to know the symbol table size before it
3749 can compute the relocation file positions. This may or may not
3750 be the case for the hp300hpux target, for example. */
3751 (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
3753 obj_textsec (abfd)->rel_filepos = aout_info.treloff;
3754 obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
3755 obj_sym_filepos (abfd) = aout_info.symoff;
3757 /* We keep a count of the symbols as we output them. */
3758 obj_aout_external_sym_count (abfd) = 0;
3760 /* We accumulate the string table as we write out the symbols. */
3761 aout_info.strtab = _bfd_stringtab_init ();
3762 if (aout_info.strtab == NULL)
3765 /* Allocate buffers to hold section contents and relocs. */
3766 aout_info.contents = bfd_malloc (max_contents_size);
3767 aout_info.relocs = bfd_malloc (max_relocs_size);
3768 aout_info.symbol_map = bfd_malloc (max_sym_count * sizeof (int *));
3769 aout_info.output_syms = bfd_malloc ((max_sym_count + 1)
3770 * sizeof (struct external_nlist));
3771 if ((aout_info.contents == NULL && max_contents_size != 0)
3772 || (aout_info.relocs == NULL && max_relocs_size != 0)
3773 || (aout_info.symbol_map == NULL && max_sym_count != 0)
3774 || aout_info.output_syms == NULL)
3777 /* If we have a symbol named __DYNAMIC, force it out now. This is
3778 required by SunOS. Doing this here rather than in sunos.c is a
3779 hack, but it's easier than exporting everything which would be
3782 struct aout_link_hash_entry *h;
3784 h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
3785 FALSE, FALSE, FALSE);
3787 aout_link_write_other_symbol (h, &aout_info);
3790 /* The most time efficient way to do the link would be to read all
3791 the input object files into memory and then sort out the
3792 information into the output file. Unfortunately, that will
3793 probably use too much memory. Another method would be to step
3794 through everything that composes the text section and write it
3795 out, and then everything that composes the data section and write
3796 it out, and then write out the relocs, and then write out the
3797 symbols. Unfortunately, that requires reading stuff from each
3798 input file several times, and we will not be able to keep all the
3799 input files open simultaneously, and reopening them will be slow.
3801 What we do is basically process one input file at a time. We do
3802 everything we need to do with an input file once--copy over the
3803 section contents, handle the relocation information, and write
3804 out the symbols--and then we throw away the information we read
3805 from it. This approach requires a lot of lseeks of the output
3806 file, which is unfortunate but still faster than reopening a lot
3809 We use the output_has_begun field of the input BFDs to see
3810 whether we have already handled it. */
3811 for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
3812 sub->output_has_begun = FALSE;
3814 /* Mark all sections which are to be included in the link. This
3815 will normally be every section. We need to do this so that we
3816 can identify any sections which the linker has decided to not
3818 for (o = abfd->sections; o != NULL; o = o->next)
3820 for (p = o->map_head.link_order; p != NULL; p = p->next)
3821 if (p->type == bfd_indirect_link_order)
3822 p->u.indirect.section->linker_mark = TRUE;
3825 have_link_order_relocs = FALSE;
3826 for (o = abfd->sections; o != NULL; o = o->next)
3828 for (p = o->map_head.link_order;
3832 if (p->type == bfd_indirect_link_order
3833 && (bfd_get_flavour (p->u.indirect.section->owner)
3834 == bfd_target_aout_flavour))
3838 input_bfd = p->u.indirect.section->owner;
3839 if (! input_bfd->output_has_begun)
3841 if (! aout_link_input_bfd (&aout_info, input_bfd))
3843 input_bfd->output_has_begun = TRUE;
3846 else if (p->type == bfd_section_reloc_link_order
3847 || p->type == bfd_symbol_reloc_link_order)
3848 /* These are handled below. */
3849 have_link_order_relocs = TRUE;
3852 if (! _bfd_default_link_order (abfd, info, o, p))
3858 /* Write out any symbols that we have not already written out. */
3859 aout_link_hash_traverse (aout_hash_table (info),
3860 aout_link_write_other_symbol,
3861 (void *) &aout_info);
3863 /* Now handle any relocs we were asked to create by the linker.
3864 These did not come from any input file. We must do these after
3865 we have written out all the symbols, so that we know the symbol
3867 if (have_link_order_relocs)
3869 for (o = abfd->sections; o != NULL; o = o->next)
3871 for (p = o->map_head.link_order;
3875 if (p->type == bfd_section_reloc_link_order
3876 || p->type == bfd_symbol_reloc_link_order)
3878 if (! aout_link_reloc_link_order (&aout_info, o, p))
3885 if (aout_info.contents != NULL)
3887 free (aout_info.contents);
3888 aout_info.contents = NULL;
3890 if (aout_info.relocs != NULL)
3892 free (aout_info.relocs);
3893 aout_info.relocs = NULL;
3895 if (aout_info.symbol_map != NULL)
3897 free (aout_info.symbol_map);
3898 aout_info.symbol_map = NULL;
3900 if (aout_info.output_syms != NULL)
3902 free (aout_info.output_syms);
3903 aout_info.output_syms = NULL;
3905 if (includes_hash_initialized)
3907 bfd_hash_table_free (&aout_info.includes.root);
3908 includes_hash_initialized = FALSE;
3911 /* Finish up any dynamic linking we may be doing. */
3912 if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
3914 if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
3918 /* Update the header information. */
3919 abfd->symcount = obj_aout_external_sym_count (abfd);
3920 exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
3921 obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
3922 obj_textsec (abfd)->reloc_count =
3923 exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
3924 obj_datasec (abfd)->reloc_count =
3925 exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
3927 /* Write out the string table, unless there are no symbols. */
3928 if (abfd->symcount > 0)
3930 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
3931 || ! emit_stringtab (abfd, aout_info.strtab))
3934 else if (obj_textsec (abfd)->reloc_count == 0
3935 && obj_datasec (abfd)->reloc_count == 0)
3941 (file_ptr) (obj_datasec (abfd)->filepos
3942 + exec_hdr (abfd)->a_data
3945 || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
3952 if (aout_info.contents != NULL)
3953 free (aout_info.contents);
3954 if (aout_info.relocs != NULL)
3955 free (aout_info.relocs);
3956 if (aout_info.symbol_map != NULL)
3957 free (aout_info.symbol_map);
3958 if (aout_info.output_syms != NULL)
3959 free (aout_info.output_syms);
3960 if (includes_hash_initialized)
3961 bfd_hash_table_free (&aout_info.includes.root);
3965 /* Adjust and write out the symbols for an a.out file. Set the new
3966 symbol indices into a symbol_map. */
3969 aout_link_write_symbols (struct aout_final_link_info *finfo, bfd *input_bfd)
3972 bfd_size_type sym_count;
3974 enum bfd_link_strip strip;
3975 enum bfd_link_discard discard;
3976 struct external_nlist *outsym;
3977 bfd_size_type strtab_index;
3978 struct external_nlist *sym;
3979 struct external_nlist *sym_end;
3980 struct aout_link_hash_entry **sym_hash;
3983 bfd_boolean skip_next;
3985 output_bfd = finfo->output_bfd;
3986 sym_count = obj_aout_external_sym_count (input_bfd);
3987 strings = obj_aout_external_strings (input_bfd);
3988 strip = finfo->info->strip;
3989 discard = finfo->info->discard;
3990 outsym = finfo->output_syms;
3992 /* First write out a symbol for this object file, unless we are
3993 discarding such symbols. */
3994 if (strip != strip_all
3995 && (strip != strip_some
3996 || bfd_hash_lookup (finfo->info->keep_hash, input_bfd->filename,
3997 FALSE, FALSE) != NULL)
3998 && discard != discard_all)
4000 H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
4001 strtab_index = add_to_stringtab (output_bfd, finfo->strtab,
4002 input_bfd->filename, FALSE);
4003 if (strtab_index == (bfd_size_type) -1)
4005 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
4006 PUT_WORD (output_bfd,
4007 (bfd_get_section_vma (output_bfd,
4008 obj_textsec (input_bfd)->output_section)
4009 + obj_textsec (input_bfd)->output_offset),
4011 ++obj_aout_external_sym_count (output_bfd);
4017 sym = obj_aout_external_syms (input_bfd);
4018 sym_end = sym + sym_count;
4019 sym_hash = obj_aout_sym_hashes (input_bfd);
4020 symbol_map = finfo->symbol_map;
4021 memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map);
4022 for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
4026 struct aout_link_hash_entry *h;
4032 /* We set *symbol_map to 0 above for all symbols. If it has
4033 already been set to -1 for this symbol, it means that we are
4034 discarding it because it appears in a duplicate header file.
4035 See the N_BINCL code below. */
4036 if (*symbol_map == -1)
4039 /* Initialize *symbol_map to -1, which means that the symbol was
4040 not copied into the output file. We will change it later if
4041 we do copy the symbol over. */
4044 type = H_GET_8 (input_bfd, sym->e_type);
4045 name = strings + GET_WORD (input_bfd, sym->e_strx);
4051 /* Pass this symbol through. It is the target of an
4052 indirect or warning symbol. */
4053 val = GET_WORD (input_bfd, sym->e_value);
4058 /* Skip this symbol, which is the target of an indirect
4059 symbol that we have changed to no longer be an indirect
4066 struct aout_link_hash_entry *hresolve;
4068 /* We have saved the hash table entry for this symbol, if
4069 there is one. Note that we could just look it up again
4070 in the hash table, provided we first check that it is an
4074 /* Use the name from the hash table, in case the symbol was
4077 name = h->root.root.string;
4079 /* If this is an indirect or warning symbol, then change
4080 hresolve to the base symbol. We also change *sym_hash so
4081 that the relocation routines relocate against the real
4085 && (h->root.type == bfd_link_hash_indirect
4086 || h->root.type == bfd_link_hash_warning))
4088 hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
4089 while (hresolve->root.type == bfd_link_hash_indirect
4090 || hresolve->root.type == bfd_link_hash_warning)
4091 hresolve = ((struct aout_link_hash_entry *)
4092 hresolve->root.u.i.link);
4093 *sym_hash = hresolve;
4096 /* If the symbol has already been written out, skip it. */
4098 && h->root.type != bfd_link_hash_warning
4101 if ((type & N_TYPE) == N_INDR
4102 || type == N_WARNING)
4104 *symbol_map = h->indx;
4108 /* See if we are stripping this symbol. */
4114 case strip_debugger:
4115 if ((type & N_STAB) != 0)
4119 if (bfd_hash_lookup (finfo->info->keep_hash, name, FALSE, FALSE)
4134 /* Get the value of the symbol. */
4135 if ((type & N_TYPE) == N_TEXT
4137 symsec = obj_textsec (input_bfd);
4138 else if ((type & N_TYPE) == N_DATA
4140 symsec = obj_datasec (input_bfd);
4141 else if ((type & N_TYPE) == N_BSS
4143 symsec = obj_bsssec (input_bfd);
4144 else if ((type & N_TYPE) == N_ABS
4146 symsec = bfd_abs_section_ptr;
4147 else if (((type & N_TYPE) == N_INDR
4148 && (hresolve == NULL
4149 || (hresolve->root.type != bfd_link_hash_defined
4150 && hresolve->root.type != bfd_link_hash_defweak
4151 && hresolve->root.type != bfd_link_hash_common)))
4152 || type == N_WARNING)
4154 /* Pass the next symbol through unchanged. The
4155 condition above for indirect symbols is so that if
4156 the indirect symbol was defined, we output it with
4157 the correct definition so the debugger will
4160 val = GET_WORD (input_bfd, sym->e_value);
4163 else if ((type & N_STAB) != 0)
4165 val = GET_WORD (input_bfd, sym->e_value);
4170 /* If we get here with an indirect symbol, it means that
4171 we are outputting it with a real definition. In such
4172 a case we do not want to output the next symbol,
4173 which is the target of the indirection. */
4174 if ((type & N_TYPE) == N_INDR)
4179 /* We need to get the value from the hash table. We use
4180 hresolve so that if we have defined an indirect
4181 symbol we output the final definition. */
4184 switch (type & N_TYPE)
4187 symsec = obj_textsec (input_bfd);
4190 symsec = obj_datasec (input_bfd);
4193 symsec = obj_bsssec (input_bfd);
4196 symsec = bfd_abs_section_ptr;
4203 else if (hresolve->root.type == bfd_link_hash_defined
4204 || hresolve->root.type == bfd_link_hash_defweak)
4206 asection *input_section;
4207 asection *output_section;
4209 /* This case usually means a common symbol which was
4210 turned into a defined symbol. */
4211 input_section = hresolve->root.u.def.section;
4212 output_section = input_section->output_section;
4213 BFD_ASSERT (bfd_is_abs_section (output_section)
4214 || output_section->owner == output_bfd);
4215 val = (hresolve->root.u.def.value
4216 + bfd_get_section_vma (output_bfd, output_section)
4217 + input_section->output_offset);
4219 /* Get the correct type based on the section. If
4220 this is a constructed set, force it to be
4221 globally visible. */
4230 if (output_section == obj_textsec (output_bfd))
4231 type |= (hresolve->root.type == bfd_link_hash_defined
4234 else if (output_section == obj_datasec (output_bfd))
4235 type |= (hresolve->root.type == bfd_link_hash_defined
4238 else if (output_section == obj_bsssec (output_bfd))
4239 type |= (hresolve->root.type == bfd_link_hash_defined
4243 type |= (hresolve->root.type == bfd_link_hash_defined
4247 else if (hresolve->root.type == bfd_link_hash_common)
4248 val = hresolve->root.u.c.size;
4249 else if (hresolve->root.type == bfd_link_hash_undefweak)
4258 val = (symsec->output_section->vma
4259 + symsec->output_offset
4260 + (GET_WORD (input_bfd, sym->e_value)
4263 /* If this is a global symbol set the written flag, and if
4264 it is a local symbol see if we should discard it. */
4268 h->indx = obj_aout_external_sym_count (output_bfd);
4270 else if ((type & N_TYPE) != N_SETT
4271 && (type & N_TYPE) != N_SETD
4272 && (type & N_TYPE) != N_SETB
4273 && (type & N_TYPE) != N_SETA)
4278 case discard_sec_merge:
4281 if ((type & N_STAB) == 0
4282 && bfd_is_local_label_name (input_bfd, name))
4296 /* An N_BINCL symbol indicates the start of the stabs
4297 entries for a header file. We need to scan ahead to the
4298 next N_EINCL symbol, ignoring nesting, adding up all the
4299 characters in the symbol names, not including the file
4300 numbers in types (the first number after an open
4302 if (type == N_BINCL)
4304 struct external_nlist *incl_sym;
4306 struct aout_link_includes_entry *incl_entry;
4307 struct aout_link_includes_totals *t;
4311 for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
4315 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
4316 if (incl_type == N_EINCL)
4322 else if (incl_type == N_BINCL)
4328 s = strings + GET_WORD (input_bfd, incl_sym->e_strx);
4329 for (; *s != '\0'; s++)
4334 /* Skip the file number. */
4336 while (ISDIGIT (*s))
4344 /* If we have already included a header file with the
4345 same value, then replace this one with an N_EXCL
4347 copy = ! finfo->info->keep_memory;
4348 incl_entry = aout_link_includes_lookup (&finfo->includes,
4350 if (incl_entry == NULL)
4352 for (t = incl_entry->totals; t != NULL; t = t->next)
4353 if (t->total == val)
4357 /* This is the first time we have seen this header
4358 file with this set of stabs strings. */
4359 t = bfd_hash_allocate (&finfo->includes.root,
4364 t->next = incl_entry->totals;
4365 incl_entry->totals = t;
4371 /* This is a duplicate header file. We must change
4372 it to be an N_EXCL entry, and mark all the
4373 included symbols to prevent outputting them. */
4377 for (incl_sym = sym + 1, incl_map = symbol_map + 1;
4379 incl_sym++, incl_map++)
4383 incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
4384 if (incl_type == N_EINCL)
4393 else if (incl_type == N_BINCL)
4402 /* Copy this symbol into the list of symbols we are going to
4404 H_PUT_8 (output_bfd, type, outsym->e_type);
4406 if (! finfo->info->keep_memory)
4408 /* name points into a string table which we are going to
4409 free. If there is a hash table entry, use that string.
4410 Otherwise, copy name into memory. */
4412 name = h->root.root.string;
4416 strtab_index = add_to_stringtab (output_bfd, finfo->strtab,
4418 if (strtab_index == (bfd_size_type) -1)
4420 PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
4421 PUT_WORD (output_bfd, val, outsym->e_value);
4422 *symbol_map = obj_aout_external_sym_count (output_bfd);
4423 ++obj_aout_external_sym_count (output_bfd);
4427 /* Write out the output symbols we have just constructed. */
4428 if (outsym > finfo->output_syms)
4432 if (bfd_seek (output_bfd, finfo->symoff, SEEK_SET) != 0)
4434 size = outsym - finfo->output_syms;
4435 size *= EXTERNAL_NLIST_SIZE;
4436 if (bfd_bwrite ((void *) finfo->output_syms, size, output_bfd) != size)
4438 finfo->symoff += size;
4444 /* Write out a symbol that was not associated with an a.out input
4448 bfd_getp32 (const void *p)
4450 const bfd_byte *addr = p;
4453 v = (unsigned long) addr[1] << 24;
4454 v |= (unsigned long) addr[0] << 16;
4455 v |= (unsigned long) addr[3] << 8;
4456 v |= (unsigned long) addr[2];
4460 #define COERCE32(x) (((bfd_signed_vma) (x) ^ 0x80000000) - 0x80000000)
4462 static bfd_signed_vma
4463 bfd_getp_signed_32 (const void *p)
4465 const bfd_byte *addr = p;
4468 v = (unsigned long) addr[1] << 24;
4469 v |= (unsigned long) addr[0] << 16;
4470 v |= (unsigned long) addr[3] << 8;
4471 v |= (unsigned long) addr[2];
4472 return COERCE32 (v);
4476 bfd_putp32 (bfd_vma data, void *p)
4480 addr[0] = (data >> 16) & 0xff;
4481 addr[1] = (data >> 24) & 0xff;
4482 addr[2] = (data >> 0) & 0xff;
4483 addr[3] = (data >> 8) & 0xff;
4486 const bfd_target MY (vec) =
4488 TARGETNAME, /* Name. */
4489 bfd_target_aout_flavour,
4490 BFD_ENDIAN_LITTLE, /* Target byte order (little). */
4491 BFD_ENDIAN_LITTLE, /* Target headers byte order (little). */
4492 (HAS_RELOC | EXEC_P | /* Object flags. */
4493 HAS_LINENO | HAS_DEBUG |
4494 HAS_SYMS | HAS_LOCALS | WP_TEXT),
4495 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
4496 MY_symbol_leading_char,
4497 AR_PAD_CHAR, /* AR_pad_char. */
4498 15, /* AR_max_namelen. */
4499 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
4500 bfd_getp32, bfd_getp_signed_32, bfd_putp32,
4501 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */
4502 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
4503 bfd_getp32, bfd_getp_signed_32, bfd_putp32,
4504 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Headers. */
4505 {_bfd_dummy_target, MY_object_p, /* bfd_check_format. */
4506 bfd_generic_archive_p, MY_core_file_p},
4507 {bfd_false, MY_mkobject, /* bfd_set_format. */
4508 _bfd_generic_mkarchive, bfd_false},
4509 {bfd_false, MY_write_object_contents, /* bfd_write_contents. */
4510 _bfd_write_archive_contents, bfd_false},
4512 BFD_JUMP_TABLE_GENERIC (MY),
4513 BFD_JUMP_TABLE_COPY (MY),
4514 BFD_JUMP_TABLE_CORE (MY),
4515 BFD_JUMP_TABLE_ARCHIVE (MY),
4516 BFD_JUMP_TABLE_SYMBOLS (MY),
4517 BFD_JUMP_TABLE_RELOCS (MY),
4518 BFD_JUMP_TABLE_WRITE (MY),
4519 BFD_JUMP_TABLE_LINK (MY),
4520 BFD_JUMP_TABLE_DYNAMIC (MY),
4522 /* Alternative_target. */
4525 (void *) MY_backend_data