1 /* BFD back-end for PDP-11 a.out binaries.
2 Copyright 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
20 /* BFD backend for PDP-11, running 2.11BSD in particular.
22 This file was hacked up by looking hard at the existing vaxnetbsd
23 back end and the header files in 2.11BSD.
26 * support for V7 file formats
27 * support for overlay object files (see 2.11 a.out(5))
28 * support for old and very old archives
29 (see 2.11 ar(5), historical section)
31 Search for TODO to find other areas needing more work. */
33 #define BYTES_IN_WORD 2
34 #define BYTES_IN_LONG 4
36 #undef TARGET_IS_BIG_ENDIAN_P
38 #define TARGET_PAGE_SIZE 1024
39 #define SEGMENT__SIZE TARGET_PAGE_SIZE
41 #define DEFAULT_ARCH bfd_arch_pdp11
42 #define DEFAULT_MID M_PDP11
44 /* Do not "beautify" the CONCAT* macro args. Traditional C will not
45 remove whitespace added here, and thus will fail to concatenate
47 #define MY(OP) CONCAT2 (pdp11_aout_,OP)
49 /* This needs to start with a.out so GDB knows it is an a.out variant. */
50 #define TARGETNAME "a.out-pdp11"
52 /* This is the normal load address for executables. */
53 #define TEXT_START_ADDR 0
55 /* The header is not included in the text segment. */
56 #define N_HEADER_IN_TEXT(x) 0
58 /* There are no shared libraries. */
59 #define N_SHARED_LIB(x) 0
61 /* There is no flags field. */
62 #define N_FLAGS(exec) 0
64 #define N_SET_FLAGS(exec, flags) do { } while (0)
65 #define N_BADMAG(x) (((x).a_info != OMAGIC) \
66 && ((x).a_info != NMAGIC) \
67 && ((x).a_info != A_MAGIC3) \
68 && ((x).a_info != A_MAGIC4) \
69 && ((x).a_info != A_MAGIC5) \
70 && ((x).a_info != A_MAGIC6))
74 #define external_exec pdp11_external_exec
75 struct pdp11_external_exec
77 bfd_byte e_info[2]; /* Magic number. */
78 bfd_byte e_text[2]; /* Length of text section in bytes. */
79 bfd_byte e_data[2]; /* Length of data section in bytes. */
80 bfd_byte e_bss[2]; /* Length of bss area in bytes. */
81 bfd_byte e_syms[2]; /* Length of symbol table in bytes. */
82 bfd_byte e_entry[2]; /* Start address. */
83 bfd_byte e_unused[2]; /* Not used. */
84 bfd_byte e_flag[2]; /* Relocation info stripped. */
85 bfd_byte e_relocatable; /* Ugly hack. */
88 #define EXEC_BYTES_SIZE (8 * 2)
90 #define A_MAGIC1 OMAGIC
91 #define OMAGIC 0407 /* ...object file or impure executable. */
92 #define A_MAGIC2 NMAGIC
93 #define NMAGIC 0410 /* Pure executable. */
94 #define ZMAGIC 0413 /* Demand-paged executable. */
95 #define A_MAGIC3 0411 /* Separated I&D. */
96 #define A_MAGIC4 0405 /* Overlay. */
97 #define A_MAGIC5 0430 /* Auto-overlay (nonseparate). */
98 #define A_MAGIC6 0431 /* Auto-overlay (separate). */
102 #define A_FLAG_RELOC_STRIPPED 0x0001
104 #define external_nlist pdp11_external_nlist
105 struct pdp11_external_nlist
107 bfd_byte e_unused[2]; /* Unused. */
108 bfd_byte e_strx[2]; /* Index into string table of name. */
109 bfd_byte e_type[1]; /* Type of symbol. */
110 bfd_byte e_ovly[1]; /* Overlay number. */
111 bfd_byte e_value[2]; /* Value of symbol. */
114 #define EXTERNAL_NLIST_SIZE 8
116 #define N_TXTOFF(x) (EXEC_BYTES_SIZE)
117 #define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text)
118 #define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data)
119 #define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize)
120 #define N_SYMOFF(x) (N_DRELOFF(x) + (x).a_drsize)
121 #define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms)
123 #define WRITE_HEADERS(abfd, execp) pdp11_aout_write_headers (abfd, execp)
129 #define SWAP_MAGIC(ext) bfd_getl16 (ext)
131 #define MY_entry_is_text_address 1
133 #define MY_write_object_contents MY(write_object_contents)
134 static bfd_boolean MY(write_object_contents) (bfd *);
135 #define MY_text_includes_header 1
137 #define MY_BFD_TARGET
139 #include "aout-target.h"
141 /* Start of modified aoutx.h. */
142 #define KEEPIT udata.i
144 #include <string.h> /* For strchr and friends. */
147 #include "safe-ctype.h"
151 #include "aout/aout64.h"
152 #include "aout/stab_gnu.h"
164 #define N_TYPE 0x1f /* Type mask. */
165 #define N_UNDF 0x00 /* Undefined. */
166 #define N_ABS 0x01 /* Absolute. */
167 #define N_TEXT 0x02 /* Text segment. */
168 #define N_DATA 0x03 /* Data segment. */
169 #define N_BSS 0x04 /* Bss segment. */
170 #define N_REG 0x14 /* Register symbol. */
171 #define N_FN 0x1f /* File name. */
172 #define N_EXT 0x20 /* External flag. */
176 #define RELFLG 0x0001 /* PC-relative flag. */
177 #define RTYPE 0x000e /* Type mask. */
178 #define RIDXMASK 0xfff0 /* Index mask. */
180 #define RABS 0x00 /* Absolute. */
181 #define RTEXT 0x02 /* Text. */
182 #define RDATA 0x04 /* Data. */
183 #define RBSS 0x06 /* Bss. */
184 #define REXT 0x08 /* External. */
186 #define RINDEX(x) (((x) & 0xfff0) >> 4)
188 #ifndef MY_final_link_relocate
189 #define MY_final_link_relocate _bfd_final_link_relocate
192 #ifndef MY_relocate_contents
193 #define MY_relocate_contents _bfd_relocate_contents
196 /* A hash table used for header files with N_BINCL entries. */
198 struct aout_link_includes_table
200 struct bfd_hash_table root;
203 /* A linked list of totals that we have found for a particular header
206 struct aout_link_includes_totals
208 struct aout_link_includes_totals *next;
212 /* An entry in the header file hash table. */
214 struct aout_link_includes_entry
216 struct bfd_hash_entry root;
217 /* List of totals we have found for this file. */
218 struct aout_link_includes_totals *totals;
221 /* During the final link step we need to pass around a bunch of
222 information, so we do it in an instance of this structure. */
224 struct aout_final_link_info
226 /* General link information. */
227 struct bfd_link_info *info;
230 /* Reloc file positions. */
231 file_ptr treloff, dreloff;
232 /* File position of symbols. */
235 struct bfd_strtab_hash *strtab;
236 /* Header file hash table. */
237 struct aout_link_includes_table includes;
238 /* A buffer large enough to hold the contents of any section. */
240 /* A buffer large enough to hold the relocs of any section. */
242 /* A buffer large enough to hold the symbol map of any input BFD. */
244 /* A buffer large enough to hold output symbols of any input BFD. */
245 struct external_nlist *output_syms;
248 reloc_howto_type howto_table_pdp11[] =
250 /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */
251 HOWTO( 0, 0, 1, 16, FALSE, 0, complain_overflow_signed,0,"16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
252 HOWTO( 1, 0, 1, 16, TRUE, 0, complain_overflow_signed,0,"DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
255 #define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0]))
258 static bfd_boolean aout_link_check_archive_element (bfd *, struct bfd_link_info *, bfd_boolean *);
259 static bfd_boolean aout_link_add_object_symbols (bfd *, struct bfd_link_info *);
260 static bfd_boolean aout_link_add_symbols (bfd *, struct bfd_link_info *);
261 static bfd_boolean aout_link_write_symbols (struct aout_final_link_info *, bfd *);
265 NAME (aout, reloc_type_lookup) (bfd * abfd ATTRIBUTE_UNUSED,
266 bfd_reloc_code_real_type code)
271 return &howto_table_pdp11[0];
272 case BFD_RELOC_16_PCREL:
273 return &howto_table_pdp11[1];
280 pdp11_aout_write_headers (bfd *abfd, struct internal_exec *execp)
282 struct external_exec exec_bytes;
283 bfd_size_type text_size;
286 if (adata(abfd).magic == undecided_magic)
287 NAME (aout, adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
289 execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE;
290 execp->a_entry = bfd_get_start_address (abfd);
292 if (obj_textsec (abfd)->reloc_count > 0
293 || obj_datasec (abfd)->reloc_count > 0)
295 execp->a_trsize = execp->a_text;
296 execp->a_drsize = execp->a_data;
304 NAME (aout, swap_exec_header_out) (abfd, execp, & exec_bytes);
306 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
309 if (bfd_bwrite ((void *) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, abfd)
313 /* Now write out reloc info, followed by syms and strings. */
314 if (bfd_get_outsymbols (abfd) != NULL
315 && bfd_get_symcount (abfd) != 0)
317 if (bfd_seek (abfd, (file_ptr) (N_SYMOFF(*execp)), SEEK_SET) != 0)
320 if (! NAME (aout, write_syms) (abfd))
324 if (obj_textsec (abfd)->reloc_count > 0
325 || obj_datasec (abfd)->reloc_count > 0)
327 if (bfd_seek (abfd, (file_ptr) (N_TRELOFF(*execp)), SEEK_SET) != 0
328 || !NAME (aout, squirt_out_relocs) (abfd, obj_textsec (abfd))
329 || bfd_seek (abfd, (file_ptr) (N_DRELOFF(*execp)), SEEK_SET) != 0
330 || !NAME (aout, squirt_out_relocs) (abfd, obj_datasec (abfd)))
337 /* Write an object file.
338 Section contents have already been written. We write the
339 file header, symbols, and relocation. */
342 MY(write_object_contents) (bfd *abfd)
344 struct internal_exec *execp = exec_hdr (abfd);
346 /* We must make certain that the magic number has been set. This
347 will normally have been done by set_section_contents, but only if
348 there actually are some section contents. */
349 if (! abfd->output_has_begun)
351 bfd_size_type text_size;
354 NAME (aout, adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
357 obj_reloc_entry_size (abfd) = RELOC_SIZE;
359 return WRITE_HEADERS (abfd, execp);
362 /* Swap the information in an executable header @var{raw_bytes} taken
363 from a raw byte stream memory image into the internal exec header
364 structure "execp". */
366 #ifndef NAME_swap_exec_header_in
368 NAME (aout, swap_exec_header_in) (bfd *abfd,
369 struct external_exec *bytes,
370 struct internal_exec *execp)
372 /* The internal_exec structure has some fields that are unused in this
373 configuration (IE for i960), so ensure that all such uninitialized
374 fields are zero'd out. There are places where two of these structs
375 are memcmp'd, and thus the contents do matter. */
376 memset ((void *) execp, 0, sizeof (struct internal_exec));
377 /* Now fill in fields in the execp, from the bytes in the raw data. */
378 execp->a_info = GET_MAGIC (abfd, bytes->e_info);
379 execp->a_text = GET_WORD (abfd, bytes->e_text);
380 execp->a_data = GET_WORD (abfd, bytes->e_data);
381 execp->a_bss = GET_WORD (abfd, bytes->e_bss);
382 execp->a_syms = GET_WORD (abfd, bytes->e_syms);
383 execp->a_entry = GET_WORD (abfd, bytes->e_entry);
385 if (GET_WORD (abfd, bytes->e_flag) & A_FLAG_RELOC_STRIPPED)
392 execp->a_trsize = execp->a_text;
393 execp->a_drsize = execp->a_data;
396 #define NAME_swap_exec_header_in NAME (aout, swap_exec_header_in)
399 /* Swap the information in an internal exec header structure
400 "execp" into the buffer "bytes" ready for writing to disk. */
402 NAME (aout, swap_exec_header_out) (bfd *abfd,
403 struct internal_exec *execp,
404 struct external_exec *bytes)
406 /* Now fill in fields in the raw data, from the fields in the exec struct. */
407 PUT_MAGIC (abfd, execp->a_info, bytes->e_info);
408 PUT_WORD (abfd, execp->a_text, bytes->e_text);
409 PUT_WORD (abfd, execp->a_data, bytes->e_data);
410 PUT_WORD (abfd, execp->a_bss, bytes->e_bss);
411 PUT_WORD (abfd, execp->a_syms, bytes->e_syms);
412 PUT_WORD (abfd, execp->a_entry, bytes->e_entry);
413 PUT_WORD (abfd, 0, bytes->e_unused);
415 if ((execp->a_trsize == 0 || execp->a_text == 0)
416 && (execp->a_drsize == 0 || execp->a_data == 0))
417 PUT_WORD (abfd, A_FLAG_RELOC_STRIPPED, bytes->e_flag);
418 else if (execp->a_trsize == execp->a_text
419 && execp->a_drsize == execp->a_data)
420 PUT_WORD (abfd, 0, bytes->e_flag);
423 /* TODO: print a proper warning message. */
424 fprintf (stderr, "BFD:%s:%d: internal error\n", __FILE__, __LINE__);
425 PUT_WORD (abfd, 0, bytes->e_flag);
429 /* Make all the section for an a.out file. */
432 NAME (aout, make_sections) (bfd *abfd)
434 if (obj_textsec (abfd) == NULL && bfd_make_section (abfd, ".text") == NULL)
436 if (obj_datasec (abfd) == NULL && bfd_make_section (abfd, ".data") == NULL)
438 if (obj_bsssec (abfd) == NULL && bfd_make_section (abfd, ".bss") == NULL)
443 /* Some a.out variant thinks that the file open in ABFD
444 checking is an a.out file. Do some more checking, and set up
445 for access if it really is. Call back to the calling
446 environment's "finish up" function just before returning, to
447 handle any last-minute setup. */
450 NAME (aout, some_aout_object_p) (bfd *abfd,
451 struct internal_exec *execp,
452 const bfd_target *(*callback_to_real_object_p) (bfd *))
454 struct aout_data_struct *rawptr, *oldrawptr;
455 const bfd_target *result;
456 bfd_size_type amt = sizeof (struct aout_data_struct);
458 rawptr = bfd_zalloc (abfd, amt);
462 oldrawptr = abfd->tdata.aout_data;
463 abfd->tdata.aout_data = rawptr;
465 /* Copy the contents of the old tdata struct.
466 In particular, we want the subformat, since for hpux it was set in
467 hp300hpux.c:swap_exec_header_in and will be used in
468 hp300hpux.c:callback. */
469 if (oldrawptr != NULL)
470 *abfd->tdata.aout_data = *oldrawptr;
472 abfd->tdata.aout_data->a.hdr = &rawptr->e;
473 *(abfd->tdata.aout_data->a.hdr) = *execp; /* Copy in the internal_exec struct. */
474 execp = abfd->tdata.aout_data->a.hdr;
476 /* Set the file flags. */
477 abfd->flags = BFD_NO_FLAGS;
478 if (execp->a_drsize || execp->a_trsize)
479 abfd->flags |= HAS_RELOC;
480 /* Setting of EXEC_P has been deferred to the bottom of this function. */
482 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
483 if (N_DYNAMIC(*execp))
484 abfd->flags |= DYNAMIC;
486 if (N_MAGIC (*execp) == ZMAGIC)
488 abfd->flags |= D_PAGED | WP_TEXT;
489 adata (abfd).magic = z_magic;
491 else if (N_MAGIC (*execp) == QMAGIC)
493 abfd->flags |= D_PAGED | WP_TEXT;
494 adata (abfd).magic = z_magic;
495 adata (abfd).subformat = q_magic_format;
497 else if (N_MAGIC (*execp) == NMAGIC)
499 abfd->flags |= WP_TEXT;
500 adata (abfd).magic = n_magic;
502 else if (N_MAGIC (*execp) == OMAGIC
503 || N_MAGIC (*execp) == BMAGIC)
504 adata (abfd).magic = o_magic;
507 /* Should have been checked with N_BADMAG before this routine
512 bfd_get_start_address (abfd) = execp->a_entry;
514 obj_aout_symbols (abfd) = NULL;
515 bfd_get_symcount (abfd) = execp->a_syms / sizeof (struct external_nlist);
517 /* The default relocation entry size is that of traditional V7 Unix. */
518 obj_reloc_entry_size (abfd) = RELOC_SIZE;
520 /* The default symbol entry size is that of traditional Unix. */
521 obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE;
524 bfd_init_window (&obj_aout_sym_window (abfd));
525 bfd_init_window (&obj_aout_string_window (abfd));
528 obj_aout_external_syms (abfd) = NULL;
529 obj_aout_external_strings (abfd) = NULL;
530 obj_aout_sym_hashes (abfd) = NULL;
532 if (! NAME (aout, make_sections) (abfd))
535 obj_datasec (abfd)->size = execp->a_data;
536 obj_bsssec (abfd)->size = execp->a_bss;
538 obj_textsec (abfd)->flags =
539 (execp->a_trsize != 0
540 ? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC)
541 : (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS));
542 obj_datasec (abfd)->flags =
543 (execp->a_drsize != 0
544 ? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC)
545 : (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS));
546 obj_bsssec (abfd)->flags = SEC_ALLOC;
548 #ifdef THIS_IS_ONLY_DOCUMENTATION
549 /* The common code can't fill in these things because they depend
550 on either the start address of the text segment, the rounding
551 up of virtual addresses between segments, or the starting file
552 position of the text segment -- all of which varies among different
553 versions of a.out. */
555 /* Call back to the format-dependent code to fill in the rest of the
556 fields and do any further cleanup. Things that should be filled
557 in by the callback: */
558 struct exec *execp = exec_hdr (abfd);
560 obj_textsec (abfd)->size = N_TXTSIZE(*execp);
561 /* Data and bss are already filled in since they're so standard. */
563 /* The virtual memory addresses of the sections. */
564 obj_textsec (abfd)->vma = N_TXTADDR(*execp);
565 obj_datasec (abfd)->vma = N_DATADDR(*execp);
566 obj_bsssec (abfd)->vma = N_BSSADDR(*execp);
568 /* The file offsets of the sections. */
569 obj_textsec (abfd)->filepos = N_TXTOFF(*execp);
570 obj_datasec (abfd)->filepos = N_DATOFF(*execp);
572 /* The file offsets of the relocation info. */
573 obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp);
574 obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp);
576 /* The file offsets of the string table and symbol table. */
577 obj_str_filepos (abfd) = N_STROFF (*execp);
578 obj_sym_filepos (abfd) = N_SYMOFF (*execp);
580 /* Determine the architecture and machine type of the object file. */
581 abfd->obj_arch = bfd_arch_obscure;
583 adata(abfd)->page_size = TARGET_PAGE_SIZE;
584 adata(abfd)->segment_size = SEGMENT_SIZE;
585 adata(abfd)->exec_bytes_size = EXEC_BYTES_SIZE;
589 /* The architecture is encoded in various ways in various a.out variants,
590 or is not encoded at all in some of them. The relocation size depends
591 on the architecture and the a.out variant. Finally, the return value
592 is the bfd_target vector in use. If an error occurs, return zero and
593 set bfd_error to the appropriate error code.
595 Formats such as b.out, which have additional fields in the a.out
596 header, should cope with them in this callback as well. */
597 #endif /* DOCUMENTATION */
599 result = (*callback_to_real_object_p)(abfd);
601 /* Now that the segment addresses have been worked out, take a better
602 guess at whether the file is executable. If the entry point
603 is within the text segment, assume it is. (This makes files
604 executable even if their entry point address is 0, as long as
605 their text starts at zero.).
607 This test had to be changed to deal with systems where the text segment
608 runs at a different location than the default. The problem is that the
609 entry address can appear to be outside the text segment, thus causing an
610 erroneous conclusion that the file isn't executable.
612 To fix this, we now accept any non-zero entry point as an indication of
613 executability. This will work most of the time, since only the linker
614 sets the entry point, and that is likely to be non-zero for most systems. */
616 if (execp->a_entry != 0
617 || (execp->a_entry >= obj_textsec(abfd)->vma
618 && execp->a_entry < obj_textsec(abfd)->vma + obj_textsec(abfd)->size))
619 abfd->flags |= EXEC_P;
623 struct stat stat_buf;
625 /* The original heuristic doesn't work in some important cases.
626 The a.out file has no information about the text start
627 address. For files (like kernels) linked to non-standard
628 addresses (ld -Ttext nnn) the entry point may not be between
629 the default text start (obj_textsec(abfd)->vma) and
630 (obj_textsec(abfd)->vma) + text size. This is not just a mach
631 issue. Many kernels are loaded at non standard addresses. */
632 if (abfd->iostream != NULL
633 && (abfd->flags & BFD_IN_MEMORY) == 0
634 && (fstat(fileno((FILE *) (abfd->iostream)), &stat_buf) == 0)
635 && ((stat_buf.st_mode & 0111) != 0))
636 abfd->flags |= EXEC_P;
638 #endif /* STAT_FOR_EXEC */
643 abfd->tdata.aout_data = oldrawptr;
648 /* Initialize ABFD for use with a.out files. */
651 NAME (aout, mkobject) (bfd *abfd)
653 struct aout_data_struct *rawptr;
654 bfd_size_type amt = sizeof (struct aout_data_struct);
656 bfd_set_error (bfd_error_system_call);
658 /* Use an intermediate variable for clarity. */
659 rawptr = bfd_zalloc (abfd, amt);
664 abfd->tdata.aout_data = rawptr;
665 exec_hdr (abfd) = &(rawptr->e);
667 obj_textsec (abfd) = NULL;
668 obj_datasec (abfd) = NULL;
669 obj_bsssec (abfd) = NULL;
674 /* Keep track of machine architecture and machine type for
675 a.out's. Return the <<machine_type>> for a particular
676 architecture and machine, or <<M_UNKNOWN>> if that exact architecture
677 and machine can't be represented in a.out format.
679 If the architecture is understood, machine type 0 (default)
680 is always understood. */
683 NAME (aout, machine_type) (enum bfd_architecture arch,
684 unsigned long machine,
685 bfd_boolean *unknown)
687 enum machine_type arch_flags;
689 arch_flags = M_UNKNOWN;
696 || machine == bfd_mach_sparc
697 || machine == bfd_mach_sparc_sparclite
698 || machine == bfd_mach_sparc_v9)
699 arch_flags = M_SPARC;
700 else if (machine == bfd_mach_sparc_sparclet)
701 arch_flags = M_SPARCLET;
707 case 0: arch_flags = M_68010; break;
708 case bfd_mach_m68000: arch_flags = M_UNKNOWN; *unknown = FALSE; break;
709 case bfd_mach_m68010: arch_flags = M_68010; break;
710 case bfd_mach_m68020: arch_flags = M_68020; break;
711 default: arch_flags = M_UNKNOWN; break;
717 || machine == bfd_mach_i386_i386
718 || machine == bfd_mach_i386_i386_intel_syntax)
723 if (machine == 0) arch_flags = M_ARM;
731 case bfd_mach_mips3000:
732 arch_flags = M_MIPS1;
734 case bfd_mach_mips4000: /* MIPS3 */
735 case bfd_mach_mips4400:
736 case bfd_mach_mips8000: /* MIPS4 */
737 case bfd_mach_mips6000: /* Real MIPS2: */
738 arch_flags = M_MIPS2;
741 arch_flags = M_UNKNOWN;
749 case 0: arch_flags = M_NS32532; break;
750 case 32032: arch_flags = M_NS32032; break;
751 case 32532: arch_flags = M_NS32532; break;
752 default: arch_flags = M_UNKNOWN; break;
757 /* TODO: arch_flags = M_PDP11; */
766 arch_flags = M_UNKNOWN;
769 if (arch_flags != M_UNKNOWN)
775 /* Set the architecture and the machine of the ABFD to the
776 values ARCH and MACHINE. Verify that @ABFD's format
777 can support the architecture required. */
780 NAME (aout, set_arch_mach) (bfd *abfd,
781 enum bfd_architecture arch,
782 unsigned long machine)
784 if (! bfd_default_set_arch_mach (abfd, arch, machine))
787 if (arch != bfd_arch_unknown)
791 NAME (aout, machine_type) (arch, machine, &unknown);
796 obj_reloc_entry_size (abfd) = RELOC_SIZE;
798 return (*aout_backend_info(abfd)->set_sizes) (abfd);
802 adjust_o_magic (bfd *abfd, struct internal_exec *execp)
804 file_ptr pos = adata (abfd).exec_bytes_size;
809 obj_textsec (abfd)->filepos = pos;
810 if (! obj_textsec (abfd)->user_set_vma)
811 obj_textsec (abfd)->vma = vma;
813 vma = obj_textsec (abfd)->vma;
815 pos += obj_textsec (abfd)->size;
816 vma += obj_textsec (abfd)->size;
819 if (!obj_datasec (abfd)->user_set_vma)
821 obj_textsec (abfd)->size += pad;
824 obj_datasec (abfd)->vma = vma;
827 vma = obj_datasec (abfd)->vma;
828 obj_datasec (abfd)->filepos = pos;
829 pos += obj_datasec (abfd)->size;
830 vma += obj_datasec (abfd)->size;
833 if (! obj_bsssec (abfd)->user_set_vma)
835 obj_datasec (abfd)->size += pad;
838 obj_bsssec (abfd)->vma = vma;
842 /* The VMA of the .bss section is set by the VMA of the
843 .data section plus the size of the .data section. We may
844 need to add padding bytes to make this true. */
845 pad = obj_bsssec (abfd)->vma - vma;
848 obj_datasec (abfd)->size += pad;
852 obj_bsssec (abfd)->filepos = pos;
854 /* Fix up the exec header. */
855 execp->a_text = obj_textsec (abfd)->size;
856 execp->a_data = obj_datasec (abfd)->size;
857 execp->a_bss = obj_bsssec (abfd)->size;
858 N_SET_MAGIC (*execp, OMAGIC);
862 adjust_z_magic (bfd *abfd, struct internal_exec *execp)
864 bfd_size_type data_pad, text_pad;
866 const struct aout_backend_data *abdp;
867 int ztih; /* Nonzero if text includes exec header. */
869 abdp = aout_backend_info (abfd);
873 && (abdp->text_includes_header
874 || obj_aout_subformat (abfd) == q_magic_format));
875 obj_textsec(abfd)->filepos = (ztih
876 ? adata(abfd).exec_bytes_size
877 : adata(abfd).zmagic_disk_block_size);
878 if (! obj_textsec(abfd)->user_set_vma)
880 /* ?? Do we really need to check for relocs here? */
881 obj_textsec(abfd)->vma = ((abfd->flags & HAS_RELOC)
884 ? (abdp->default_text_vma
885 + adata (abfd).exec_bytes_size)
886 : abdp->default_text_vma));
891 /* The .text section is being loaded at an unusual address. We
892 may need to pad it such that the .data section starts at a page
895 text_pad = ((obj_textsec (abfd)->filepos - obj_textsec (abfd)->vma)
896 & (adata (abfd).page_size - 1));
898 text_pad = ((- obj_textsec (abfd)->vma)
899 & (adata (abfd).page_size - 1));
902 /* Find start of data. */
905 text_end = obj_textsec (abfd)->filepos + obj_textsec (abfd)->size;
906 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
910 /* Note that if page_size == zmagic_disk_block_size, then
911 filepos == page_size, and this case is the same as the ztih
913 text_end = obj_textsec (abfd)->size;
914 text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
915 text_end += obj_textsec (abfd)->filepos;
918 obj_textsec (abfd)->size += text_pad;
919 text_end += text_pad;
922 if (!obj_datasec(abfd)->user_set_vma)
925 vma = obj_textsec(abfd)->vma + obj_textsec(abfd)->size;
926 obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size);
928 if (abdp && abdp->zmagic_mapped_contiguous)
930 text_pad = (obj_datasec(abfd)->vma
931 - obj_textsec(abfd)->vma
932 - obj_textsec(abfd)->size);
933 obj_textsec(abfd)->size += text_pad;
935 obj_datasec (abfd)->filepos = (obj_textsec (abfd)->filepos
936 + obj_textsec (abfd)->size);
938 /* Fix up exec header while we're at it. */
939 execp->a_text = obj_textsec(abfd)->size;
940 if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted)))
941 execp->a_text += adata(abfd).exec_bytes_size;
942 if (obj_aout_subformat (abfd) == q_magic_format)
943 N_SET_MAGIC (*execp, QMAGIC);
945 N_SET_MAGIC (*execp, ZMAGIC);
947 /* Spec says data section should be rounded up to page boundary. */
948 obj_datasec(abfd)->size
949 = align_power (obj_datasec(abfd)->size,
950 obj_bsssec(abfd)->alignment_power);
951 execp->a_data = BFD_ALIGN (obj_datasec(abfd)->size,
952 adata(abfd).page_size);
953 data_pad = execp->a_data - obj_datasec(abfd)->size;
956 if (!obj_bsssec(abfd)->user_set_vma)
957 obj_bsssec(abfd)->vma = (obj_datasec(abfd)->vma
958 + obj_datasec(abfd)->size);
959 /* If the BSS immediately follows the data section and extra space
960 in the page is left after the data section, fudge data
961 in the header so that the bss section looks smaller by that
962 amount. We'll start the bss section there, and lie to the OS.
963 (Note that a linker script, as well as the above assignment,
964 could have explicitly set the BSS vma to immediately follow
965 the data section.) */
966 if (align_power (obj_bsssec(abfd)->vma, obj_bsssec(abfd)->alignment_power)
967 == obj_datasec(abfd)->vma + obj_datasec(abfd)->size)
968 execp->a_bss = (data_pad > obj_bsssec(abfd)->size) ? 0 :
969 obj_bsssec(abfd)->size - data_pad;
971 execp->a_bss = obj_bsssec(abfd)->size;
975 adjust_n_magic (bfd *abfd, struct internal_exec *execp)
977 file_ptr pos = adata(abfd).exec_bytes_size;
982 obj_textsec(abfd)->filepos = pos;
983 if (!obj_textsec(abfd)->user_set_vma)
984 obj_textsec(abfd)->vma = vma;
986 vma = obj_textsec(abfd)->vma;
987 pos += obj_textsec(abfd)->size;
988 vma += obj_textsec(abfd)->size;
991 obj_datasec(abfd)->filepos = pos;
992 if (!obj_datasec(abfd)->user_set_vma)
993 obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size);
994 vma = obj_datasec(abfd)->vma;
996 /* Since BSS follows data immediately, see if it needs alignment. */
997 vma += obj_datasec(abfd)->size;
998 pad = align_power (vma, obj_bsssec(abfd)->alignment_power) - vma;
999 obj_datasec(abfd)->size += pad;
1000 pos += obj_datasec(abfd)->size;
1003 if (!obj_bsssec(abfd)->user_set_vma)
1004 obj_bsssec(abfd)->vma = vma;
1006 vma = obj_bsssec(abfd)->vma;
1008 /* Fix up exec header. */
1009 execp->a_text = obj_textsec(abfd)->size;
1010 execp->a_data = obj_datasec(abfd)->size;
1011 execp->a_bss = obj_bsssec(abfd)->size;
1012 N_SET_MAGIC (*execp, NMAGIC);
1016 NAME (aout, adjust_sizes_and_vmas) (bfd *abfd,
1017 bfd_size_type *text_size,
1018 file_ptr * text_end ATTRIBUTE_UNUSED)
1020 struct internal_exec *execp = exec_hdr (abfd);
1022 if (! NAME (aout, make_sections) (abfd))
1025 if (adata(abfd).magic != undecided_magic)
1028 obj_textsec(abfd)->size =
1029 align_power(obj_textsec(abfd)->size,
1030 obj_textsec(abfd)->alignment_power);
1032 *text_size = obj_textsec (abfd)->size;
1033 /* Rule (heuristic) for when to pad to a new page. Note that there
1034 are (at least) two ways demand-paged (ZMAGIC) files have been
1035 handled. Most Berkeley-based systems start the text segment at
1036 (TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text
1037 segment right after the exec header; the latter is counted in the
1038 text segment size, and is paged in by the kernel with the rest of
1041 /* This perhaps isn't the right way to do this, but made it simpler for me
1042 to understand enough to implement it. Better would probably be to go
1043 right from BFD flags to alignment/positioning characteristics. But the
1044 old code was sloppy enough about handling the flags, and had enough
1045 other magic, that it was a little hard for me to understand. I think
1046 I understand it better now, but I haven't time to do the cleanup this
1049 if (abfd->flags & WP_TEXT)
1050 adata(abfd).magic = n_magic;
1052 adata(abfd).magic = o_magic;
1054 #ifdef BFD_AOUT_DEBUG /* requires gcc2 */
1056 fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n",
1058 switch (adata(abfd).magic) {
1059 case n_magic: str = "NMAGIC"; break;
1060 case o_magic: str = "OMAGIC"; break;
1061 case z_magic: str = "ZMAGIC"; break;
1066 obj_textsec(abfd)->vma, obj_textsec(abfd)->size,
1067 obj_textsec(abfd)->alignment_power,
1068 obj_datasec(abfd)->vma, obj_datasec(abfd)->size,
1069 obj_datasec(abfd)->alignment_power,
1070 obj_bsssec(abfd)->vma, obj_bsssec(abfd)->size,
1071 obj_bsssec(abfd)->alignment_power);
1075 switch (adata(abfd).magic)
1078 adjust_o_magic (abfd, execp);
1081 adjust_z_magic (abfd, execp);
1084 adjust_n_magic (abfd, execp);
1090 #ifdef BFD_AOUT_DEBUG
1091 fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n",
1092 obj_textsec(abfd)->vma, obj_textsec(abfd)->size,
1093 obj_textsec(abfd)->filepos,
1094 obj_datasec(abfd)->vma, obj_datasec(abfd)->size,
1095 obj_datasec(abfd)->filepos,
1096 obj_bsssec(abfd)->vma, obj_bsssec(abfd)->size);
1102 /* Called by the BFD in response to a bfd_make_section request. */
1105 NAME (aout, new_section_hook) (bfd *abfd, asection *newsect)
1107 /* Align to double at least. */
1108 newsect->alignment_power = bfd_get_arch_info(abfd)->section_align_power;
1110 if (bfd_get_format (abfd) == bfd_object)
1112 if (obj_textsec (abfd) == NULL
1113 && ! strcmp (newsect->name, ".text"))
1115 obj_textsec(abfd)= newsect;
1116 newsect->target_index = N_TEXT;
1120 if (obj_datasec (abfd) == NULL
1121 && ! strcmp (newsect->name, ".data"))
1123 obj_datasec (abfd) = newsect;
1124 newsect->target_index = N_DATA;
1128 if (obj_bsssec (abfd) == NULL
1129 && !strcmp (newsect->name, ".bss"))
1131 obj_bsssec (abfd) = newsect;
1132 newsect->target_index = N_BSS;
1137 /* We allow more than three sections internally. */
1142 NAME (aout, set_section_contents) (bfd *abfd,
1144 const void * location,
1146 bfd_size_type count)
1149 bfd_size_type text_size;
1151 if (! abfd->output_has_begun)
1153 if (! NAME (aout, adjust_sizes_and_vmas) (abfd, & text_size, & text_end))
1157 if (section == obj_bsssec (abfd))
1159 bfd_set_error (bfd_error_no_contents);
1163 if (section != obj_textsec (abfd)
1164 && section != obj_datasec (abfd))
1166 (*_bfd_error_handler)
1167 ("%s: can not represent section `%s' in a.out object file format",
1168 bfd_get_filename (abfd), bfd_get_section_name (abfd, section));
1169 bfd_set_error (bfd_error_nonrepresentable_section);
1175 if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
1176 || bfd_bwrite (location, count, abfd) != count)
1183 /* Read the external symbols from an a.out file. */
1186 aout_get_external_symbols (bfd *abfd)
1188 if (obj_aout_external_syms (abfd) == NULL)
1190 bfd_size_type count;
1191 struct external_nlist *syms;
1193 count = exec_hdr (abfd)->a_syms / EXTERNAL_NLIST_SIZE;
1196 if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd),
1197 exec_hdr (abfd)->a_syms,
1198 &obj_aout_sym_window (abfd), TRUE))
1200 syms = (struct external_nlist *) obj_aout_sym_window (abfd).data;
1202 /* We allocate using malloc to make the values easy to free
1203 later on. If we put them on the objalloc it might not be
1204 possible to free them. */
1205 syms = bfd_malloc (count * EXTERNAL_NLIST_SIZE);
1206 if (syms == NULL && count != 0)
1209 if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
1210 || (bfd_bread (syms, exec_hdr (abfd)->a_syms, abfd)
1211 != exec_hdr (abfd)->a_syms))
1218 obj_aout_external_syms (abfd) = syms;
1219 obj_aout_external_sym_count (abfd) = count;
1222 if (obj_aout_external_strings (abfd) == NULL
1223 && exec_hdr (abfd)->a_syms != 0)
1225 unsigned char string_chars[BYTES_IN_LONG];
1226 bfd_size_type stringsize;
1229 /* Get the size of the strings. */
1230 if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
1231 || (bfd_bread ((void *) string_chars, (bfd_size_type) BYTES_IN_LONG,
1232 abfd) != BYTES_IN_LONG))
1234 stringsize = H_GET_32 (abfd, string_chars);
1237 if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize,
1238 &obj_aout_string_window (abfd), TRUE))
1240 strings = (char *) obj_aout_string_window (abfd).data;
1242 strings = bfd_malloc (stringsize + 1);
1243 if (strings == NULL)
1246 /* Skip space for the string count in the buffer for convenience
1247 when using indexes. */
1248 if (bfd_bread (strings + 4, stringsize - 4, abfd) != stringsize - 4)
1254 /* Ensure that a zero index yields an empty string. */
1257 strings[stringsize - 1] = 0;
1259 obj_aout_external_strings (abfd) = strings;
1260 obj_aout_external_string_size (abfd) = stringsize;
1266 /* Translate an a.out symbol into a BFD symbol. The desc, other, type
1267 and symbol->value fields of CACHE_PTR will be set from the a.out
1268 nlist structure. This function is responsible for setting
1269 symbol->flags and symbol->section, and adjusting symbol->value. */
1272 translate_from_native_sym_flags (bfd *abfd,
1273 aout_symbol_type *cache_ptr)
1277 if (cache_ptr->type == N_FN)
1281 /* This is a debugging symbol. */
1282 cache_ptr->symbol.flags = BSF_DEBUGGING;
1284 /* Work out the symbol section. */
1285 switch (cache_ptr->type & N_TYPE)
1289 sec = obj_textsec (abfd);
1292 sec = obj_datasec (abfd);
1295 sec = obj_bsssec (abfd);
1299 sec = bfd_abs_section_ptr;
1303 cache_ptr->symbol.section = sec;
1304 cache_ptr->symbol.value -= sec->vma;
1309 /* Get the default visibility. This does not apply to all types, so
1310 we just hold it in a local variable to use if wanted. */
1311 if ((cache_ptr->type & N_EXT) == 0)
1312 visible = BSF_LOCAL;
1314 visible = BSF_GLOBAL;
1316 switch (cache_ptr->type)
1319 case N_ABS: case N_ABS | N_EXT:
1320 cache_ptr->symbol.section = bfd_abs_section_ptr;
1321 cache_ptr->symbol.flags = visible;
1324 case N_UNDF | N_EXT:
1325 if (cache_ptr->symbol.value != 0)
1327 /* This is a common symbol. */
1328 cache_ptr->symbol.flags = BSF_GLOBAL;
1329 cache_ptr->symbol.section = bfd_com_section_ptr;
1333 cache_ptr->symbol.flags = 0;
1334 cache_ptr->symbol.section = bfd_und_section_ptr;
1338 case N_TEXT: case N_TEXT | N_EXT:
1339 cache_ptr->symbol.section = obj_textsec (abfd);
1340 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1341 cache_ptr->symbol.flags = visible;
1344 case N_DATA: case N_DATA | N_EXT:
1345 cache_ptr->symbol.section = obj_datasec (abfd);
1346 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1347 cache_ptr->symbol.flags = visible;
1350 case N_BSS: case N_BSS | N_EXT:
1351 cache_ptr->symbol.section = obj_bsssec (abfd);
1352 cache_ptr->symbol.value -= cache_ptr->symbol.section->vma;
1353 cache_ptr->symbol.flags = visible;
1360 /* Set the fields of SYM_POINTER according to CACHE_PTR. */
1363 translate_to_native_sym_flags (bfd *abfd,
1365 struct external_nlist *sym_pointer)
1367 bfd_vma value = cache_ptr->value;
1371 /* Mask out any existing type bits in case copying from one section
1373 sym_pointer->e_type[0] &= ~N_TYPE;
1375 sec = bfd_get_section (cache_ptr);
1380 /* This case occurs, e.g., for the *DEBUG* section of a COFF
1382 (*_bfd_error_handler)
1383 ("%B: can not represent section for symbol `%s' in a.out object file format",
1384 abfd, cache_ptr->name != NULL ? cache_ptr->name : "*unknown*");
1385 bfd_set_error (bfd_error_nonrepresentable_section);
1389 if (sec->output_section != NULL)
1391 off = sec->output_offset;
1392 sec = sec->output_section;
1395 if (bfd_is_abs_section (sec))
1396 sym_pointer->e_type[0] |= N_ABS;
1397 else if (sec == obj_textsec (abfd))
1398 sym_pointer->e_type[0] |= N_TEXT;
1399 else if (sec == obj_datasec (abfd))
1400 sym_pointer->e_type[0] |= N_DATA;
1401 else if (sec == obj_bsssec (abfd))
1402 sym_pointer->e_type[0] |= N_BSS;
1403 else if (bfd_is_und_section (sec))
1404 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1405 else if (bfd_is_com_section (sec))
1406 sym_pointer->e_type[0] = N_UNDF | N_EXT;
1409 (*_bfd_error_handler)
1410 ("%B: can not represent section `%A' in a.out object file format",
1412 bfd_set_error (bfd_error_nonrepresentable_section);
1416 /* Turn the symbol from section relative to absolute again */
1417 value += sec->vma + off;
1419 if ((cache_ptr->flags & BSF_DEBUGGING) != 0)
1420 sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type;
1421 else if ((cache_ptr->flags & BSF_GLOBAL) != 0)
1422 sym_pointer->e_type[0] |= N_EXT;
1424 PUT_WORD(abfd, value, sym_pointer->e_value);
1429 /* Native-level interface to symbols. */
1432 NAME (aout, make_empty_symbol) (bfd *abfd)
1434 bfd_size_type amt = sizeof (aout_symbol_type);
1435 aout_symbol_type *new = bfd_zalloc (abfd, amt);
1439 new->symbol.the_bfd = abfd;
1441 return &new->symbol;
1444 /* Translate a set of internal symbols into external symbols. */
1447 NAME (aout, translate_symbol_table) (bfd *abfd,
1448 aout_symbol_type *in,
1449 struct external_nlist *ext,
1450 bfd_size_type count,
1452 bfd_size_type strsize,
1453 bfd_boolean dynamic)
1455 struct external_nlist *ext_end;
1457 ext_end = ext + count;
1458 for (; ext < ext_end; ext++, in++)
1462 x = GET_WORD (abfd, ext->e_strx);
1463 in->symbol.the_bfd = abfd;
1465 /* For the normal symbols, the zero index points at the number
1466 of bytes in the string table but is to be interpreted as the
1467 null string. For the dynamic symbols, the number of bytes in
1468 the string table is stored in the __DYNAMIC structure and the
1469 zero index points at an actual string. */
1470 if (x == 0 && ! dynamic)
1471 in->symbol.name = "";
1472 else if (x < strsize)
1473 in->symbol.name = str + x;
1477 in->symbol.value = GET_SWORD (abfd, ext->e_value);
1478 /* TODO: is 0 a safe value here? */
1481 in->type = H_GET_8 (abfd, ext->e_type);
1482 in->symbol.udata.p = NULL;
1484 if (! translate_from_native_sym_flags (abfd, in))
1488 in->symbol.flags |= BSF_DYNAMIC;
1494 /* We read the symbols into a buffer, which is discarded when this
1495 function exits. We read the strings into a buffer large enough to
1496 hold them all plus all the cached symbol entries. */
1499 NAME (aout, slurp_symbol_table) (bfd *abfd)
1501 struct external_nlist *old_external_syms;
1502 aout_symbol_type *cached;
1503 bfd_size_type cached_size;
1505 /* If there's no work to be done, don't do any. */
1506 if (obj_aout_symbols (abfd) != NULL)
1509 old_external_syms = obj_aout_external_syms (abfd);
1511 if (! aout_get_external_symbols (abfd))
1514 cached_size = obj_aout_external_sym_count (abfd);
1515 cached_size *= sizeof (aout_symbol_type);
1516 cached = bfd_zmalloc (cached_size);
1517 if (cached == NULL && cached_size != 0)
1520 /* Convert from external symbol information to internal. */
1521 if (! (NAME (aout, translate_symbol_table)
1523 obj_aout_external_syms (abfd),
1524 obj_aout_external_sym_count (abfd),
1525 obj_aout_external_strings (abfd),
1526 obj_aout_external_string_size (abfd),
1533 bfd_get_symcount (abfd) = obj_aout_external_sym_count (abfd);
1535 obj_aout_symbols (abfd) = cached;
1537 /* It is very likely that anybody who calls this function will not
1538 want the external symbol information, so if it was allocated
1539 because of our call to aout_get_external_symbols, we free it up
1540 right away to save space. */
1541 if (old_external_syms == NULL
1542 && obj_aout_external_syms (abfd) != NULL)
1545 bfd_free_window (&obj_aout_sym_window (abfd));
1547 free (obj_aout_external_syms (abfd));
1549 obj_aout_external_syms (abfd) = NULL;
1555 /* We use a hash table when writing out symbols so that we only write
1556 out a particular string once. This helps particularly when the
1557 linker writes out stabs debugging entries, because each different
1558 contributing object file tends to have many duplicate stabs
1561 This hash table code breaks dbx on SunOS 4.1.3, so we don't do it
1562 if BFD_TRADITIONAL_FORMAT is set. */
1564 /* Get the index of a string in a strtab, adding it if it is not
1567 static INLINE bfd_size_type
1568 add_to_stringtab (bfd *abfd,
1569 struct bfd_strtab_hash *tab,
1574 bfd_size_type index;
1576 /* An index of 0 always means the empty string. */
1577 if (str == 0 || *str == '\0')
1580 /* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx
1581 doesn't understand a hashed string table. */
1583 if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
1586 index = _bfd_stringtab_add (tab, str, hash, copy);
1588 if (index != (bfd_size_type) -1)
1589 /* Add BYTES_IN_LONG to the return value to account for the
1590 space taken up by the string table size. */
1591 index += BYTES_IN_LONG;
1596 /* Write out a strtab. ABFD is already at the right location in the
1600 emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab)
1602 bfd_byte buffer[BYTES_IN_LONG];
1604 /* The string table starts with the size. */
1605 H_PUT_32 (abfd, _bfd_stringtab_size (tab) + BYTES_IN_LONG, buffer);
1606 if (bfd_bwrite ((void *) buffer, (bfd_size_type) BYTES_IN_LONG, abfd)
1610 return _bfd_stringtab_emit (abfd, tab);
1614 NAME (aout, write_syms) (bfd *abfd)
1616 unsigned int count ;
1617 asymbol **generic = bfd_get_outsymbols (abfd);
1618 struct bfd_strtab_hash *strtab;
1620 strtab = _bfd_stringtab_init ();
1624 for (count = 0; count < bfd_get_symcount (abfd); count++)
1626 asymbol *g = generic[count];
1628 struct external_nlist nsp;
1630 PUT_WORD (abfd, 0, nsp.e_unused);
1632 indx = add_to_stringtab (abfd, strtab, g->name, FALSE);
1633 if (indx == (bfd_size_type) -1)
1635 PUT_WORD (abfd, indx, nsp.e_strx);
1637 if (bfd_asymbol_flavour(g) == abfd->xvec->flavour)
1638 H_PUT_8 (abfd, aout_symbol(g)->type, nsp.e_type);
1640 H_PUT_8 (abfd, 0, nsp.e_type);
1642 if (! translate_to_native_sym_flags (abfd, g, &nsp))
1645 H_PUT_8 (abfd, 0, nsp.e_ovly);
1647 if (bfd_bwrite ((void *)&nsp, (bfd_size_type) EXTERNAL_NLIST_SIZE, abfd)
1648 != EXTERNAL_NLIST_SIZE)
1651 /* NB: `KEEPIT' currently overlays `udata.p', so set this only
1652 here, at the end. */
1656 if (! emit_stringtab (abfd, strtab))
1659 _bfd_stringtab_free (strtab);
1664 _bfd_stringtab_free (strtab);
1670 NAME (aout, canonicalize_symtab) (bfd *abfd, asymbol **location)
1672 unsigned int counter = 0;
1673 aout_symbol_type *symbase;
1675 if (!NAME (aout, slurp_symbol_table) (abfd))
1678 for (symbase = obj_aout_symbols (abfd); counter++ < bfd_get_symcount (abfd);)
1679 *(location++) = (asymbol *)(symbase++);
1681 return bfd_get_symcount (abfd);
1685 /* Output extended relocation information to a file in target byte order. */
1688 pdp11_aout_swap_reloc_out (bfd *abfd, arelent *g, bfd_byte *natptr)
1694 asymbol *sym = *(g->sym_ptr_ptr);
1695 asection *output_section = sym->section->output_section;
1698 fprintf (stderr, "BFD: can't do this reloc addend stuff\n");
1700 r_pcrel = g->howto->pc_relative;
1702 if (bfd_is_abs_section (output_section))
1704 else if (output_section == obj_textsec (abfd))
1706 else if (output_section == obj_datasec (abfd))
1708 else if (output_section == obj_bsssec (abfd))
1710 else if (bfd_is_und_section (output_section))
1712 else if (bfd_is_com_section (output_section))
1717 BFD_ASSERT (r_type != -1);
1722 r_index = (*(g->sym_ptr_ptr))->KEEPIT;
1724 reloc_entry = r_index << 4 | r_type | r_pcrel;
1726 PUT_WORD (abfd, reloc_entry, natptr);
1729 /* BFD deals internally with all things based from the section they're
1730 in. so, something in 10 bytes into a text section with a base of
1731 50 would have a symbol (.text+10) and know .text vma was 50.
1733 Aout keeps all it's symbols based from zero, so the symbol would
1734 contain 60. This macro subs the base of each section from the value
1735 to give the true offset from the section */
1738 #define MOVE_ADDRESS(ad) \
1741 /* Undefined symbol. */ \
1742 cache_ptr->sym_ptr_ptr = symbols + r_index; \
1743 cache_ptr->addend = ad; \
1747 /* Defined, section relative. replace symbol with pointer to \
1748 symbol which points to section. */ \
1752 case N_TEXT | N_EXT: \
1753 cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \
1754 cache_ptr->addend = ad - su->textsec->vma; \
1757 case N_DATA | N_EXT: \
1758 cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \
1759 cache_ptr->addend = ad - su->datasec->vma; \
1762 case N_BSS | N_EXT: \
1763 cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \
1764 cache_ptr->addend = ad - su->bsssec->vma; \
1768 case N_ABS | N_EXT: \
1769 cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
1770 cache_ptr->addend = ad; \
1776 pdp11_aout_swap_reloc_in (bfd * abfd,
1778 arelent * cache_ptr,
1779 bfd_size_type offset,
1781 bfd_size_type symcount)
1783 struct aoutdata *su = &(abfd->tdata.aout_data->a);
1784 unsigned int r_index;
1789 reloc_entry = GET_WORD (abfd, (void *) bytes);
1791 r_pcrel = reloc_entry & RELFLG;
1793 cache_ptr->address = offset;
1794 cache_ptr->howto = howto_table_pdp11 + (r_pcrel ? 1 : 0);
1796 if ((reloc_entry & RTYPE) == RABS)
1799 r_index = RINDEX (reloc_entry);
1801 /* r_extern reflects whether the symbol the reloc is against is
1803 r_extern = (reloc_entry & RTYPE) == REXT;
1805 if (r_extern && r_index > symcount)
1807 /* We could arrange to return an error, but it might be useful
1808 to see the file even if it is bad. */
1816 /* Read and swap the relocs for a section. */
1819 NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols)
1822 bfd_size_type count;
1823 bfd_size_type reloc_size;
1825 arelent *reloc_cache;
1827 unsigned int counter = 0;
1830 if (asect->relocation)
1833 if (asect->flags & SEC_CONSTRUCTOR)
1836 if (asect == obj_datasec (abfd))
1837 reloc_size = exec_hdr(abfd)->a_drsize;
1838 else if (asect == obj_textsec (abfd))
1839 reloc_size = exec_hdr(abfd)->a_trsize;
1840 else if (asect == obj_bsssec (abfd))
1844 bfd_set_error (bfd_error_invalid_operation);
1848 if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
1851 each_size = obj_reloc_entry_size (abfd);
1853 relocs = bfd_malloc (reloc_size);
1854 if (relocs == NULL && reloc_size != 0)
1857 if (bfd_bread (relocs, reloc_size, abfd) != reloc_size)
1863 count = reloc_size / each_size;
1865 /* Count the number of NON-ZERO relocs, this is the count we want. */
1867 unsigned int real_count = 0;
1869 for (counter = 0; counter < count; counter++)
1873 x = GET_WORD (abfd, (char *) relocs + each_size * counter);
1881 reloc_cache = bfd_zmalloc (count * sizeof (arelent));
1882 if (reloc_cache == NULL && count != 0)
1885 cache_ptr = reloc_cache;
1890 counter++, rptr += RELOC_SIZE, cache_ptr++)
1892 while (GET_WORD (abfd, (void *) rptr) == 0)
1895 if ((char *) rptr >= (char *) relocs + reloc_size)
1899 pdp11_aout_swap_reloc_in (abfd, rptr, cache_ptr,
1900 (bfd_size_type) ((char *) rptr - (char *) relocs),
1902 (bfd_size_type) bfd_get_symcount (abfd));
1905 /* Just in case, if rptr >= relocs + reloc_size should happen
1907 BFD_ASSERT (counter == count);
1911 asect->relocation = reloc_cache;
1912 asect->reloc_count = cache_ptr - reloc_cache;
1917 /* Write out a relocation section into an object file. */
1920 NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section)
1923 unsigned char *native;
1924 unsigned int count = section->reloc_count;
1925 bfd_size_type natsize;
1927 natsize = section->size;
1928 native = bfd_zalloc (abfd, natsize);
1932 generic = section->orelocation;
1933 if (generic != NULL)
1939 r = native + (*generic)->address;
1940 pdp11_aout_swap_reloc_out (abfd, *generic, r);
1946 if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
1948 bfd_release (abfd, native);
1952 bfd_release (abfd, native);
1956 /* This is stupid. This function should be a boolean predicate. */
1959 NAME (aout, canonicalize_reloc) (bfd *abfd,
1964 arelent *tblptr = section->relocation;
1967 if (section == obj_bsssec (abfd))
1973 if (!(tblptr || NAME (aout, slurp_reloc_table)(abfd, section, symbols)))
1976 if (section->flags & SEC_CONSTRUCTOR)
1978 arelent_chain *chain = section->constructor_chain;
1980 for (count = 0; count < section->reloc_count; count ++)
1982 *relptr ++ = &chain->relent;
1983 chain = chain->next;
1988 tblptr = section->relocation;
1990 for (count = 0; count++ < section->reloc_count;)
1991 *relptr++ = tblptr++;
1996 return section->reloc_count;
2000 NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect)
2002 if (bfd_get_format (abfd) != bfd_object)
2004 bfd_set_error (bfd_error_invalid_operation);
2008 if (asect->flags & SEC_CONSTRUCTOR)
2009 return (sizeof (arelent *) * (asect->reloc_count + 1));
2011 if (asect == obj_datasec (abfd))
2012 return (sizeof (arelent *)
2013 * ((exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd))
2016 if (asect == obj_textsec (abfd))
2017 return (sizeof (arelent *)
2018 * ((exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd))
2021 /* TODO: why are there two if statements for obj_bsssec()? */
2023 if (asect == obj_bsssec (abfd))
2024 return sizeof (arelent *);
2026 if (asect == obj_bsssec (abfd))
2029 bfd_set_error (bfd_error_invalid_operation);
2035 NAME (aout, get_symtab_upper_bound) (bfd *abfd)
2037 if (!NAME (aout, slurp_symbol_table) (abfd))
2040 return (bfd_get_symcount (abfd) + 1) * (sizeof (aout_symbol_type *));
2044 NAME (aout, get_lineno) (bfd * abfd ATTRIBUTE_UNUSED,
2045 asymbol * symbol ATTRIBUTE_UNUSED)
2051 NAME (aout, get_symbol_info) (bfd * abfd ATTRIBUTE_UNUSED,
2055 bfd_symbol_info (symbol, ret);
2057 if (ret->type == '?')
2059 int type_code = aout_symbol(symbol)->type & 0xff;
2060 const char *stab_name = bfd_get_stab_name (type_code);
2061 static char buf[10];
2063 if (stab_name == NULL)
2065 sprintf(buf, "(%d)", type_code);
2069 ret->stab_type = type_code;
2070 ret->stab_other = (unsigned) (aout_symbol(symbol)->other & 0xff);
2071 ret->stab_desc = (unsigned) (aout_symbol(symbol)->desc & 0xffff);
2072 ret->stab_name = stab_name;
2077 NAME (aout, print_symbol) (bfd * abfd,
2080 bfd_print_symbol_type how)
2082 FILE *file = (FILE *) afile;
2086 case bfd_print_symbol_name:
2088 fprintf(file,"%s", symbol->name);
2090 case bfd_print_symbol_more:
2091 fprintf(file,"%4x %2x %2x",
2092 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2093 (unsigned) (aout_symbol (symbol)->other & 0xff),
2094 (unsigned) (aout_symbol (symbol)->type));
2096 case bfd_print_symbol_all:
2098 const char *section_name = symbol->section->name;
2100 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
2102 fprintf (file," %-5s %04x %02x %02x",
2104 (unsigned) (aout_symbol (symbol)->desc & 0xffff),
2105 (unsigned) (aout_symbol (symbol)->other & 0xff),
2106 (unsigned) (aout_symbol (symbol)->type & 0xff));
2108 fprintf(file," %s", symbol->name);
2114 /* If we don't have to allocate more than 1MB to hold the generic
2115 symbols, we use the generic minisymbol method: it's faster, since
2116 it only translates the symbols once, not multiple times. */
2117 #define MINISYM_THRESHOLD (1000000 / sizeof (asymbol))
2119 /* Read minisymbols. For minisymbols, we use the unmodified a.out
2120 symbols. The minisymbol_to_symbol function translates these into
2121 BFD asymbol structures. */
2124 NAME (aout, read_minisymbols) (bfd *abfd,
2125 bfd_boolean dynamic,
2127 unsigned int *sizep)
2130 /* We could handle the dynamic symbols here as well, but it's
2131 easier to hand them off. */
2132 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
2134 if (! aout_get_external_symbols (abfd))
2137 if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2138 return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
2140 *minisymsp = (void *) obj_aout_external_syms (abfd);
2142 /* By passing the external symbols back from this routine, we are
2143 giving up control over the memory block. Clear
2144 obj_aout_external_syms, so that we do not try to free it
2146 obj_aout_external_syms (abfd) = NULL;
2148 *sizep = EXTERNAL_NLIST_SIZE;
2149 return obj_aout_external_sym_count (abfd);
2152 /* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
2153 unmodified a.out symbol. The SYM argument is a structure returned
2154 by bfd_make_empty_symbol, which we fill in here. */
2157 NAME (aout, minisymbol_to_symbol) (bfd *abfd,
2158 bfd_boolean dynamic,
2159 const void * minisym,
2163 || obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
2164 return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
2166 memset (sym, 0, sizeof (aout_symbol_type));
2168 /* We call translate_symbol_table to translate a single symbol. */
2169 if (! (NAME (aout, translate_symbol_table)
2171 (aout_symbol_type *) sym,
2172 (struct external_nlist *) minisym,
2174 obj_aout_external_strings (abfd),
2175 obj_aout_external_string_size (abfd),
2182 /* Provided a BFD, a section and an offset into the section, calculate
2183 and return the name of the source file and the line nearest to the
2187 NAME (aout, find_nearest_line) (bfd *abfd,
2191 const char **filename_ptr,
2192 const char **functionname_ptr,
2193 unsigned int *line_ptr)
2195 /* Run down the file looking for the filename, function and linenumber. */
2197 const char *directory_name = NULL;
2198 const char *main_file_name = NULL;
2199 const char *current_file_name = NULL;
2200 const char *line_file_name = NULL; /* Value of current_file_name at line number. */
2201 bfd_vma low_line_vma = 0;
2202 bfd_vma low_func_vma = 0;
2204 size_t filelen, funclen;
2207 *filename_ptr = abfd->filename;
2208 *functionname_ptr = 0;
2211 if (symbols != NULL)
2213 for (p = symbols; *p; p++)
2215 aout_symbol_type *q = (aout_symbol_type *)(*p);
2220 /* If this looks like a file name symbol, and it comes after
2221 the line number we have found so far, but before the
2222 offset, then we have probably not found the right line
2224 if (q->symbol.value <= offset
2225 && ((q->symbol.value > low_line_vma
2226 && (line_file_name != NULL
2228 || (q->symbol.value > low_func_vma
2231 const char * symname;
2233 symname = q->symbol.name;
2234 if (strcmp (symname + strlen (symname) - 2, ".o") == 0)
2236 if (q->symbol.value > low_line_vma)
2239 line_file_name = NULL;
2241 if (q->symbol.value > low_func_vma)
2248 /* If this symbol is less than the offset, but greater than
2249 the line number we have found so far, then we have not
2250 found the right line number. */
2251 if (q->symbol.value <= offset)
2253 if (q->symbol.value > low_line_vma)
2256 line_file_name = NULL;
2258 if (q->symbol.value > low_func_vma)
2262 main_file_name = current_file_name = q->symbol.name;
2263 /* Look ahead to next symbol to check if that too is an N_SO. */
2267 q = (aout_symbol_type *)(*p);
2268 if (q->type != (int) N_SO)
2271 /* Found a second N_SO First is directory; second is filename. */
2272 directory_name = current_file_name;
2273 main_file_name = current_file_name = q->symbol.name;
2274 if (obj_textsec(abfd) != section)
2278 current_file_name = q->symbol.name;
2284 /* We'll keep this if it resolves nearer than the one we have
2286 if (q->symbol.value >= low_line_vma
2287 && q->symbol.value <= offset)
2289 *line_ptr = q->desc;
2290 low_line_vma = q->symbol.value;
2291 line_file_name = current_file_name;
2297 /* We'll keep this if it is nearer than the one we have already. */
2298 if (q->symbol.value >= low_func_vma &&
2299 q->symbol.value <= offset)
2301 low_func_vma = q->symbol.value;
2302 func = (asymbol *) q;
2304 else if (q->symbol.value > offset)
2314 main_file_name = line_file_name;
2316 if (main_file_name == NULL
2317 || main_file_name[0] == '/'
2318 || directory_name == NULL)
2321 filelen = strlen (directory_name) + strlen (main_file_name);
2325 funclen = strlen (bfd_asymbol_name (func));
2327 if (adata (abfd).line_buf != NULL)
2328 free (adata (abfd).line_buf);
2329 if (filelen + funclen == 0)
2330 adata (abfd).line_buf = buf = NULL;
2333 buf = bfd_malloc ((bfd_size_type) filelen + funclen + 3);
2334 adata (abfd).line_buf = buf;
2339 if (main_file_name != NULL)
2341 if (main_file_name[0] == '/' || directory_name == NULL)
2342 *filename_ptr = main_file_name;
2345 sprintf (buf, "%s%s", directory_name, main_file_name);
2346 *filename_ptr = buf;
2353 const char *function = func->name;
2356 /* The caller expects a symbol name. We actually have a
2357 function name, without the leading underscore. Put the
2358 underscore back in, so that the caller gets a symbol name. */
2359 if (bfd_get_symbol_leading_char (abfd) == '\0')
2360 strcpy (buf, function);
2363 buf[0] = bfd_get_symbol_leading_char (abfd);
2364 strcpy (buf + 1, function);
2367 /* Have to remove : stuff. */
2368 colon = strchr (buf, ':');
2371 *functionname_ptr = buf;
2378 NAME (aout, sizeof_headers) (bfd *abfd, bfd_boolean execable ATTRIBUTE_UNUSED)
2380 return adata (abfd).exec_bytes_size;
2383 /* Free all information we have cached for this BFD. We can always
2384 read it again later if we need it. */
2387 NAME (aout, bfd_free_cached_info) (bfd *abfd)
2391 if (bfd_get_format (abfd) != bfd_object)
2394 #define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
2395 BFCI_FREE (obj_aout_symbols (abfd));
2398 obj_aout_external_syms (abfd) = 0;
2399 bfd_free_window (&obj_aout_sym_window (abfd));
2400 bfd_free_window (&obj_aout_string_window (abfd));
2401 obj_aout_external_strings (abfd) = 0;
2403 BFCI_FREE (obj_aout_external_syms (abfd));
2404 BFCI_FREE (obj_aout_external_strings (abfd));
2406 for (o = abfd->sections; o != NULL; o = o->next)
2407 BFCI_FREE (o->relocation);
2413 /* Routine to create an entry in an a.out link hash table. */
2415 struct bfd_hash_entry *
2416 NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry,
2417 struct bfd_hash_table *table,
2420 struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry;
2422 /* Allocate the structure if it has not already been allocated by a
2425 ret = bfd_hash_allocate (table, sizeof (* ret));
2429 /* Call the allocation method of the superclass. */
2430 ret = (struct aout_link_hash_entry *)
2431 _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string);
2434 /* Set local fields. */
2435 ret->written = FALSE;
2439 return (struct bfd_hash_entry *) ret;
2442 /* Initialize an a.out link hash table. */
2445 NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table,
2447 struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *,
2448 struct bfd_hash_table *,
2451 return _bfd_link_hash_table_init (&table->root, abfd, newfunc);
2454 /* Create an a.out link hash table. */
2456 struct bfd_link_hash_table *
2457 NAME (aout, link_hash_table_create) (bfd *abfd)
2459 struct aout_link_hash_table *ret;
2460 bfd_size_type amt = sizeof (struct aout_link_hash_table);
2462 ret = bfd_alloc (abfd, amt);
2465 if (! NAME (aout, link_hash_table_init) (ret, abfd,
2466 NAME (aout, link_hash_newfunc)))
2474 /* Free up the internal symbols read from an a.out file. */
2477 aout_link_free_symbols (bfd *abfd)
2479 if (obj_aout_external_syms (abfd) != NULL)
2482 bfd_free_window (&obj_aout_sym_window (abfd));
2484 free ((void *) obj_aout_external_syms (abfd));
2486 obj_aout_external_syms (abfd) = NULL;
2489 if (obj_aout_external_strings (abfd) != NULL)
2492 bfd_free_window (&obj_aout_string_window (abfd));
2494 free ((void *) obj_aout_external_strings (abfd));
2496 obj_aout_external_strings (abfd) = NULL;
2501 /* Given an a.out BFD, add symbols to the global hash table as
2505 NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
2507 switch (bfd_get_format (abfd))
2510 return aout_link_add_object_symbols (abfd, info);
2512 return _bfd_generic_link_add_archive_symbols
2513 (abfd, info, aout_link_check_archive_element);
2515 bfd_set_error (bfd_error_wrong_format);
2520 /* Add symbols from an a.out object file. */
2523 aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
2525 if (! aout_get_external_symbols (abfd))
2527 if (! aout_link_add_symbols (abfd, info))
2529 if (! info->keep_memory)
2531 if (! aout_link_free_symbols (abfd))
2537 /* Look through the internal symbols to see if this object file should
2538 be included in the link. We should include this object file if it
2539 defines any symbols which are currently undefined. If this object
2540 file defines a common symbol, then we may adjust the size of the
2541 known symbol but we do not include the object file in the link
2542 (unless there is some other reason to include it). */
2545 aout_link_check_ar_symbols (bfd *abfd,
2546 struct bfd_link_info *info,
2547 bfd_boolean *pneeded)
2549 struct external_nlist *p;
2550 struct external_nlist *pend;
2555 /* Look through all the symbols. */
2556 p = obj_aout_external_syms (abfd);
2557 pend = p + obj_aout_external_sym_count (abfd);
2558 strings = obj_aout_external_strings (abfd);
2559 for (; p < pend; p++)
2561 int type = H_GET_8 (abfd, p->e_type);
2563 struct bfd_link_hash_entry *h;
2565 /* Ignore symbols that are not externally visible. This is an
2566 optimization only, as we check the type more thoroughly
2568 if ((type & N_EXT) == 0
2572 name = strings + GET_WORD (abfd, p->e_strx);
2573 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
2575 /* We are only interested in symbols that are currently
2576 undefined or common. */
2578 || (h->type != bfd_link_hash_undefined
2579 && h->type != bfd_link_hash_common))
2582 if (type == (N_TEXT | N_EXT)
2583 || type == (N_DATA | N_EXT)
2584 || type == (N_BSS | N_EXT)
2585 || type == (N_ABS | N_EXT))
2587 /* This object file defines this symbol. We must link it
2588 in. This is true regardless of whether the current
2589 definition of the symbol is undefined or common. If the
2590 current definition is common, we have a case in which we
2591 have already seen an object file including
2593 and this object file from the archive includes
2595 In such a case we must include this object file.
2597 FIXME: The SunOS 4.1.3 linker will pull in the archive
2598 element if the symbol is defined in the .data section,
2599 but not if it is defined in the .text section. That
2600 seems a bit crazy to me, and I haven't implemented it.
2601 However, it might be correct. */
2602 if (! (*info->callbacks->add_archive_element) (info, abfd, name))
2608 if (type == (N_UNDF | N_EXT))
2612 value = GET_WORD (abfd, p->e_value);
2615 /* This symbol is common in the object from the archive
2617 if (h->type == bfd_link_hash_undefined)
2622 symbfd = h->u.undef.abfd;
2625 /* This symbol was created as undefined from
2626 outside BFD. We assume that we should link
2627 in the object file. This is done for the -u
2628 option in the linker. */
2629 if (! (*info->callbacks->add_archive_element)
2635 /* Turn the current link symbol into a common
2636 symbol. It is already on the undefs list. */
2637 h->type = bfd_link_hash_common;
2638 h->u.c.p = bfd_hash_allocate (&info->hash->table,
2639 sizeof (struct bfd_link_hash_common_entry));
2640 if (h->u.c.p == NULL)
2643 h->u.c.size = value;
2645 /* FIXME: This isn't quite right. The maximum
2646 alignment of a common symbol should be set by the
2647 architecture of the output file, not of the input
2649 power = bfd_log2 (value);
2650 if (power > bfd_get_arch_info (abfd)->section_align_power)
2651 power = bfd_get_arch_info (abfd)->section_align_power;
2652 h->u.c.p->alignment_power = power;
2654 h->u.c.p->section = bfd_make_section_old_way (symbfd,
2659 /* Adjust the size of the common symbol if
2661 if (value > h->u.c.size)
2662 h->u.c.size = value;
2668 /* We do not need this object file. */
2672 /* Check a single archive element to see if we need to include it in
2673 the link. *PNEEDED is set according to whether this element is
2674 needed in the link or not. This is called from
2675 _bfd_generic_link_add_archive_symbols. */
2678 aout_link_check_archive_element (bfd *abfd,
2679 struct bfd_link_info *info,
2680 bfd_boolean *pneeded)
2682 if (! aout_get_external_symbols (abfd))
2685 if (! aout_link_check_ar_symbols (abfd, info, pneeded))
2690 if (! aout_link_add_symbols (abfd, info))
2694 if (! info->keep_memory || ! *pneeded)
2696 if (! aout_link_free_symbols (abfd))
2703 /* Add all symbols from an object file to the hash table. */
2706 aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
2708 bfd_boolean (*add_one_symbol)
2709 (struct bfd_link_info *, bfd *, const char *, flagword, asection *,
2710 bfd_vma, const char *, bfd_boolean, bfd_boolean,
2711 struct bfd_link_hash_entry **);
2712 struct external_nlist *syms;
2713 bfd_size_type sym_count;
2716 struct aout_link_hash_entry **sym_hash;
2717 struct external_nlist *p;
2718 struct external_nlist *pend;
2720 syms = obj_aout_external_syms (abfd);
2721 sym_count = obj_aout_external_sym_count (abfd);
2722 strings = obj_aout_external_strings (abfd);
2723 if (info->keep_memory)
2728 if (aout_backend_info (abfd)->add_dynamic_symbols != NULL)
2730 if (! ((*aout_backend_info (abfd)->add_dynamic_symbols)
2731 (abfd, info, &syms, &sym_count, &strings)))
2735 /* We keep a list of the linker hash table entries that correspond
2736 to particular symbols. We could just look them up in the hash
2737 table, but keeping the list is more efficient. Perhaps this
2738 should be conditional on info->keep_memory. */
2739 sym_hash = bfd_alloc (abfd,
2740 sym_count * sizeof (struct aout_link_hash_entry *));
2741 if (sym_hash == NULL && sym_count != 0)
2743 obj_aout_sym_hashes (abfd) = sym_hash;
2745 add_one_symbol = aout_backend_info (abfd)->add_one_symbol;
2746 if (add_one_symbol == NULL)
2747 add_one_symbol = _bfd_generic_link_add_one_symbol;
2750 pend = p + sym_count;
2751 for (; p < pend; p++, sym_hash++)
2762 type = H_GET_8 (abfd, p->e_type);
2764 name = strings + GET_WORD (abfd, p->e_strx);
2765 value = GET_WORD (abfd, p->e_value);
2780 /* Ignore symbols that are not externally visible. */
2783 case N_UNDF | N_EXT:
2786 section = bfd_und_section_ptr;
2790 section = bfd_com_section_ptr;
2793 section = bfd_abs_section_ptr;
2795 case N_TEXT | N_EXT:
2796 section = obj_textsec (abfd);
2797 value -= bfd_get_section_vma (abfd, section);
2799 case N_DATA | N_EXT:
2800 /* Treat N_SETV symbols as N_DATA symbol; see comment in
2801 translate_from_native_sym_flags. */
2802 section = obj_datasec (abfd);
2803 value -= bfd_get_section_vma (abfd, section);
2806 section = obj_bsssec (abfd);
2807 value -= bfd_get_section_vma (abfd, section);
2811 if (! ((*add_one_symbol)
2812 (info, abfd, name, flags, section, value, string, copy, FALSE,
2813 (struct bfd_link_hash_entry **) sym_hash)))
2816 /* Restrict the maximum alignment of a common symbol based on
2817 the architecture, since a.out has no way to represent
2818 alignment requirements of a section in a .o file. FIXME:
2819 This isn't quite right: it should use the architecture of the
2820 output file, not the input files. */
2821 if ((*sym_hash)->root.type == bfd_link_hash_common
2822 && ((*sym_hash)->root.u.c.p->alignment_power >
2823 bfd_get_arch_info (abfd)->section_align_power))
2824 (*sym_hash)->root.u.c.p->alignment_power =
2825 bfd_get_arch_info (abfd)->section_align_power;
2827 /* If this is a set symbol, and we are not building sets, then
2828 it is possible for the hash entry to not have been set. In
2829 such a case, treat the symbol as not globally defined. */
2830 if ((*sym_hash)->root.type == bfd_link_hash_new)
2832 BFD_ASSERT ((flags & BSF_CONSTRUCTOR) != 0);
2840 /* Look up an entry in an the header file hash table. */
2842 #define aout_link_includes_lookup(table, string, create, copy) \
2843 ((struct aout_link_includes_entry *) \
2844 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
2846 /* The function to create a new entry in the header file hash table. */
2848 static struct bfd_hash_entry *
2849 aout_link_includes_newfunc (struct bfd_hash_entry *entry,
2850 struct bfd_hash_table *table,
2853 struct aout_link_includes_entry * ret =
2854 (struct aout_link_includes_entry *) entry;
2856 /* Allocate the structure if it has not already been allocated by a
2859 ret = bfd_hash_allocate (table,
2860 sizeof (struct aout_link_includes_entry));
2864 /* Call the allocation method of the superclass. */
2865 ret = ((struct aout_link_includes_entry *)
2866 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
2868 /* Set local fields. */
2871 return (struct bfd_hash_entry *) ret;
2875 aout_link_write_other_symbol (struct aout_link_hash_entry *h, void * data)
2877 struct aout_final_link_info *finfo = (struct aout_final_link_info *) data;
2881 struct external_nlist outsym;
2885 if (h->root.type == bfd_link_hash_warning)
2887 h = (struct aout_link_hash_entry *) h->root.u.i.link;
2888 if (h->root.type == bfd_link_hash_new)
2892 output_bfd = finfo->output_bfd;
2894 if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
2896 if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
2897 (output_bfd, finfo->info, h)))
2899 /* FIXME: No way to handle errors. */
2909 /* An indx of -2 means the symbol must be written. */
2911 && (finfo->info->strip == strip_all
2912 || (finfo->info->strip == strip_some
2913 && bfd_hash_lookup (finfo->info->keep_hash, h->root.root.string,
2914 FALSE, FALSE) == NULL)))
2917 switch (h->root.type)
2921 /* Avoid variable not initialized warnings. */
2923 case bfd_link_hash_new:
2924 /* This can happen for set symbols when sets are not being
2927 case bfd_link_hash_undefined:
2928 type = N_UNDF | N_EXT;
2931 case bfd_link_hash_defined:
2932 case bfd_link_hash_defweak:
2936 sec = h->root.u.def.section->output_section;
2937 BFD_ASSERT (bfd_is_abs_section (sec)
2938 || sec->owner == output_bfd);
2939 if (sec == obj_textsec (output_bfd))
2940 type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
2941 else if (sec == obj_datasec (output_bfd))
2942 type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
2943 else if (sec == obj_bsssec (output_bfd))
2944 type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
2946 type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
2948 val = (h->root.u.def.value
2950 + h->root.u.def.section->output_offset);
2953 case bfd_link_hash_common:
2954 type = N_UNDF | N_EXT;
2955 val = h->root.u.c.size;
2957 case bfd_link_hash_undefweak:
2960 case bfd_link_hash_indirect:
2961 case bfd_link_hash_warning:
2962 /* FIXME: Ignore these for now. The circumstances under which
2963 they should be written out are not clear to me. */
2967 H_PUT_8 (output_bfd, type, outsym.e_type);
2968 indx = add_to_stringtab (output_bfd, finfo->strtab, h->root.root.string,
2970 if (indx == (bfd_size_type) -1)
2971 /* FIXME: No way to handle errors. */
2974 PUT_WORD (output_bfd, indx, outsym.e_strx);
2975 PUT_WORD (output_bfd, val, outsym.e_value);
2977 amt = EXTERNAL_NLIST_SIZE;
2978 if (bfd_seek (output_bfd, finfo->symoff, SEEK_SET) != 0
2979 || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt)
2980 /* FIXME: No way to handle errors. */
2983 finfo->symoff += amt;
2984 h->indx = obj_aout_external_sym_count (output_bfd);
2985 ++obj_aout_external_sym_count (output_bfd);
2990 /* Handle a link order which is supposed to generate a reloc. */
2993 aout_link_reloc_link_order (struct aout_final_link_info *finfo,
2995 struct bfd_link_order *p)
2997 struct bfd_link_order_reloc *pr;
3000 reloc_howto_type *howto;
3001 file_ptr *reloff_ptr;
3002 struct reloc_std_external srel;
3004 bfd_size_type rel_size;
3008 if (p->type == bfd_section_reloc_link_order)
3011 if (bfd_is_abs_section (pr->u.section))
3012 r_index = N_ABS | N_EXT;
3015 BFD_ASSERT (pr->u.section->owner == finfo->output_bfd);
3016 r_index = pr->u.section->target_index;
3021 struct aout_link_hash_entry *h;
3023 BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
3025 h = ((struct aout_link_hash_entry *)
3026 bfd_wrapped_link_hash_lookup (finfo->output_bfd, finfo->info,
3027 pr->u.name, FALSE, FALSE, TRUE));
3033 /* We decided to strip this symbol, but it turns out that we
3034 can't. Note that we lose the other and desc information
3035 here. I don't think that will ever matter for a global
3039 if (! aout_link_write_other_symbol (h, (void *) finfo))
3045 if (! ((*finfo->info->callbacks->unattached_reloc)
3046 (finfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0)))
3052 howto = bfd_reloc_type_lookup (finfo->output_bfd, pr->reloc);
3055 bfd_set_error (bfd_error_bad_value);
3059 if (o == obj_textsec (finfo->output_bfd))
3060 reloff_ptr = &finfo->treloff;
3061 else if (o == obj_datasec (finfo->output_bfd))
3062 reloff_ptr = &finfo->dreloff;
3067 MY_put_reloc(finfo->output_bfd, r_extern, r_index, p->offset, howto,
3077 fprintf (stderr, "TODO: line %d in bfd/pdp11.c\n", __LINE__);
3079 r_pcrel = howto->pc_relative;
3080 r_baserel = (howto->type & 8) != 0;
3081 r_jmptable = (howto->type & 16) != 0;
3082 r_relative = (howto->type & 32) != 0;
3083 r_length = howto->size;
3085 PUT_WORD (finfo->output_bfd, p->offset, srel.r_address);
3086 if (bfd_header_big_endian (finfo->output_bfd))
3088 srel.r_index[0] = r_index >> 16;
3089 srel.r_index[1] = r_index >> 8;
3090 srel.r_index[2] = r_index;
3092 ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
3093 | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
3094 | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
3095 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
3096 | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
3097 | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
3101 srel.r_index[2] = r_index >> 16;
3102 srel.r_index[1] = r_index >> 8;
3103 srel.r_index[0] = r_index;
3105 ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
3106 | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
3107 | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
3108 | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
3109 | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
3110 | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
3114 rel_ptr = (void *) &srel;
3116 /* We have to write the addend into the object file, since
3117 standard a.out relocs are in place. It would be more
3118 reliable if we had the current contents of the file here,
3119 rather than assuming zeroes, but we can't read the file since
3120 it was opened using bfd_openw. */
3121 if (pr->addend != 0)
3124 bfd_reloc_status_type r;
3128 size = bfd_get_reloc_size (howto);
3129 buf = bfd_zmalloc (size);
3132 r = MY_relocate_contents (howto, finfo->output_bfd,
3139 case bfd_reloc_outofrange:
3141 case bfd_reloc_overflow:
3142 if (! ((*finfo->info->callbacks->reloc_overflow)
3144 (p->type == bfd_section_reloc_link_order
3145 ? bfd_section_name (finfo->output_bfd,
3148 howto->name, pr->addend, NULL,
3149 (asection *) NULL, (bfd_vma) 0)))
3156 ok = bfd_set_section_contents (finfo->output_bfd, o,
3158 (file_ptr) p->offset,
3165 rel_size = obj_reloc_entry_size (finfo->output_bfd);
3166 if (bfd_seek (finfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
3167 || bfd_bwrite (rel_ptr, rel_size, finfo->output_bfd) != rel_size)
3170 *reloff_ptr += rel_size;
3172 /* Assert that the relocs have not run into the symbols, and that n
3173 the text relocs have not run into the data relocs. */
3174 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (finfo->output_bfd)
3175 && (reloff_ptr != &finfo->treloff
3177 <= obj_datasec (finfo->output_bfd)->rel_filepos)));
3182 /* Get the section corresponding to a reloc index. */
3184 static inline asection *
3185 aout_reloc_type_to_section (bfd *abfd, int type)
3189 case RTEXT: return obj_textsec (abfd);
3190 case RDATA: return obj_datasec (abfd);
3191 case RBSS: return obj_bsssec (abfd);
3192 case RABS: return bfd_abs_section_ptr;
3193 case REXT: return bfd_und_section_ptr;
3199 pdp11_aout_link_input_section (struct aout_final_link_info *finfo,
3201 asection *input_section,
3203 bfd_size_type rel_size,
3206 bfd_boolean (*check_dynamic_reloc)
3207 (struct bfd_link_info *, bfd *, asection *,
3208 struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
3211 bfd_boolean relocatable;
3212 struct external_nlist *syms;
3214 struct aout_link_hash_entry **sym_hashes;
3216 bfd_size_type reloc_count;
3220 output_bfd = finfo->output_bfd;
3221 check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
3223 BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_SIZE);
3224 BFD_ASSERT (input_bfd->xvec->header_byteorder
3225 == output_bfd->xvec->header_byteorder);
3227 relocatable = finfo->info->relocatable;
3228 syms = obj_aout_external_syms (input_bfd);
3229 strings = obj_aout_external_strings (input_bfd);
3230 sym_hashes = obj_aout_sym_hashes (input_bfd);
3231 symbol_map = finfo->symbol_map;
3233 reloc_count = rel_size / RELOC_SIZE;
3235 rel_end = rel + rel_size;
3236 for (; rel < rel_end; rel += RELOC_SIZE)
3243 reloc_howto_type *howto;
3244 struct aout_link_hash_entry *h = NULL;
3246 bfd_reloc_status_type r;
3249 reloc_entry = GET_WORD (input_bfd, (void *) rel);
3250 if (reloc_entry == 0)
3254 unsigned int howto_idx;
3256 r_index = (reloc_entry & RIDXMASK) >> 4;
3257 r_type = reloc_entry & RTYPE;
3258 r_pcrel = reloc_entry & RELFLG;
3259 r_addr = (char *) rel - (char *) relocs;
3261 r_extern = (r_type == REXT);
3263 howto_idx = r_pcrel;
3264 BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_pdp11));
3265 howto = howto_table_pdp11 + howto_idx;
3270 /* We are generating a relocatable output file, and must
3271 modify the reloc accordingly. */
3274 /* If we know the symbol this relocation is against,
3275 convert it into a relocation against a section. This
3276 is what the native linker does. */
3277 h = sym_hashes[r_index];
3279 && (h->root.type == bfd_link_hash_defined
3280 || h->root.type == bfd_link_hash_defweak))
3282 asection *output_section;
3284 /* Compute a new r_index. */
3285 output_section = h->root.u.def.section->output_section;
3286 if (output_section == obj_textsec (output_bfd))
3288 else if (output_section == obj_datasec (output_bfd))
3290 else if (output_section == obj_bsssec (output_bfd))
3295 /* Add the symbol value and the section VMA to the
3296 addend stored in the contents. */
3297 relocation = (h->root.u.def.value
3298 + output_section->vma
3299 + h->root.u.def.section->output_offset);
3303 /* We must change r_index according to the symbol
3305 r_index = symbol_map[r_index];
3311 /* We decided to strip this symbol, but it
3312 turns out that we can't. Note that we
3313 lose the other and desc information here.
3314 I don't think that will ever matter for a
3320 if (! aout_link_write_other_symbol (h,
3330 name = strings + GET_WORD (input_bfd,
3331 syms[r_index].e_strx);
3332 if (! ((*finfo->info->callbacks->unattached_reloc)
3333 (finfo->info, name, input_bfd, input_section,
3343 /* Write out the new r_index value. */
3344 reloc_entry = GET_WORD (input_bfd, rel);
3345 reloc_entry &= RIDXMASK;
3346 reloc_entry |= r_index << 4;
3347 PUT_WORD (input_bfd, reloc_entry, rel);
3353 /* This is a relocation against a section. We must
3354 adjust by the amount that the section moved. */
3355 section = aout_reloc_type_to_section (input_bfd, r_type);
3356 relocation = (section->output_section->vma
3357 + section->output_offset
3361 /* Change the address of the relocation. */
3362 fprintf (stderr, "TODO: change the address of the relocation\n");
3364 /* Adjust a PC relative relocation by removing the reference
3365 to the original address in the section and including the
3366 reference to the new address. */
3368 relocation -= (input_section->output_section->vma
3369 + input_section->output_offset
3370 - input_section->vma);
3372 #ifdef MY_relocatable_reloc
3373 MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
3376 if (relocation == 0)
3379 r = MY_relocate_contents (howto,
3380 input_bfd, relocation,
3387 /* We are generating an executable, and must do a full
3392 h = sym_hashes[r_index];
3395 && (h->root.type == bfd_link_hash_defined
3396 || h->root.type == bfd_link_hash_defweak))
3398 relocation = (h->root.u.def.value
3399 + h->root.u.def.section->output_section->vma
3400 + h->root.u.def.section->output_offset);
3403 && h->root.type == bfd_link_hash_undefweak)
3415 section = aout_reloc_type_to_section (input_bfd, r_type);
3416 relocation = (section->output_section->vma
3417 + section->output_offset
3420 relocation += input_section->vma;
3423 if (check_dynamic_reloc != NULL)
3427 if (! ((*check_dynamic_reloc)
3428 (finfo->info, input_bfd, input_section, h,
3429 (void *) rel, contents, &skip, &relocation)))
3435 /* Now warn if a global symbol is undefined. We could not
3436 do this earlier, because check_dynamic_reloc might want
3437 to skip this reloc. */
3438 if (hundef && ! finfo->info->shared)
3443 name = h->root.root.string;
3445 name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
3446 if (! ((*finfo->info->callbacks->undefined_symbol)
3447 (finfo->info, name, input_bfd, input_section,
3452 r = MY_final_link_relocate (howto,
3453 input_bfd, input_section,
3454 contents, r_addr, relocation,
3458 if (r != bfd_reloc_ok)
3463 case bfd_reloc_outofrange:
3465 case bfd_reloc_overflow:
3472 name = strings + GET_WORD (input_bfd,
3473 syms[r_index].e_strx);
3478 s = aout_reloc_type_to_section (input_bfd, r_type);
3479 name = bfd_section_name (input_bfd, s);
3481 if (! ((*finfo->info->callbacks->reloc_overflow)
3482 (finfo->info, (h ? &h->root : NULL), name,
3483 howto->name, (bfd_vma) 0, input_bfd,
3484 input_section, r_addr)))
3495 /* Link an a.out section into the output file. */
3498 aout_link_input_section (struct aout_final_link_info *finfo,
3500 asection *input_section,
3501 file_ptr *reloff_ptr,
3502 bfd_size_type rel_size)
3504 bfd_size_type input_size;
3507 /* Get the section contents. */
3508 input_size = input_section->size;
3509 if (! bfd_get_section_contents (input_bfd, input_section,
3510 (void *) finfo->contents,
3511 (file_ptr) 0, input_size))
3514 /* Read in the relocs if we haven't already done it. */
3515 if (aout_section_data (input_section) != NULL
3516 && aout_section_data (input_section)->relocs != NULL)
3517 relocs = aout_section_data (input_section)->relocs;
3520 relocs = finfo->relocs;
3523 if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
3524 || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
3529 /* Relocate the section contents. */
3530 if (! pdp11_aout_link_input_section (finfo, input_bfd, input_section,
3531 (bfd_byte *) relocs,
3532 rel_size, finfo->contents))
3535 /* Write out the section contents. */
3536 if (! bfd_set_section_contents (finfo->output_bfd,
3537 input_section->output_section,
3538 (void *) finfo->contents,
3539 (file_ptr) input_section->output_offset,
3543 /* If we are producing relocatable output, the relocs were
3544 modified, and we now write them out. */
3545 if (finfo->info->relocatable && rel_size > 0)
3547 if (bfd_seek (finfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
3549 if (bfd_bwrite (relocs, rel_size, finfo->output_bfd) != rel_size)
3551 *reloff_ptr += rel_size;
3553 /* Assert that the relocs have not run into the symbols, and
3554 that if these are the text relocs they have not run into the
3556 BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (finfo->output_bfd)
3557 && (reloff_ptr != &finfo->treloff
3559 <= obj_datasec (finfo->output_bfd)->rel_filepos)));
3565 /* Link an a.out input BFD into the output file. */
3568 aout_link_input_bfd (struct aout_final_link_info *finfo, bfd *input_bfd)
3570 bfd_size_type sym_count;
3572 BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
3574 /* If this is a dynamic object, it may need special handling. */
3575 if ((input_bfd->flags & DYNAMIC) != 0
3576 && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
3577 return ((*aout_backend_info (input_bfd)->link_dynamic_object)
3578 (finfo->info, input_bfd));
3580 /* Get the symbols. We probably have them already, unless
3581 finfo->info->keep_memory is FALSE. */
3582 if (! aout_get_external_symbols (input_bfd))
3585 sym_count = obj_aout_external_sym_count (input_bfd);
3587 /* Write out the symbols and get a map of the new indices. The map
3588 is placed into finfo->symbol_map. */
3589 if (! aout_link_write_symbols (finfo, input_bfd))
3592 /* Relocate and write out the sections. These functions use the
3593 symbol map created by aout_link_write_symbols. The linker_mark
3594 field will be set if these sections are to be included in the
3595 link, which will normally be the case. */
3596 if (obj_textsec (input_bfd)->linker_mark)
3598 if (! aout_link_input_section (finfo, input_bfd,
3599 obj_textsec (input_bfd),
3601 exec_hdr (input_bfd)->a_trsize))
3604 if (obj_datasec (input_bfd)->linker_mark)
3606 if (! aout_link_input_section (finfo, input_bfd,
3607 obj_datasec (input_bfd),
3609 exec_hdr (input_bfd)->a_drsize))
3613 /* If we are not keeping memory, we don't need the symbols any
3614 longer. We still need them if we are keeping memory, because the
3615 strings in the hash table point into them. */
3616 if (! finfo->info->keep_memory)
3618 if (! aout_link_free_symbols (input_bfd))
3625 /* Do the final link step. This is called on the output BFD. The
3626 INFO structure should point to a list of BFDs linked through the
3627 link_next field which can be used to find each BFD which takes part
3628 in the output. Also, each section in ABFD should point to a list
3629 of bfd_link_order structures which list all the input sections for
3630 the output section. */
3633 NAME (aout, final_link) (bfd *abfd,
3634 struct bfd_link_info *info,
3635 void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *))
3637 struct aout_final_link_info aout_info;
3638 bfd_boolean includes_hash_initialized = FALSE;
3640 bfd_size_type trsize, drsize;
3641 bfd_size_type max_contents_size;
3642 bfd_size_type max_relocs_size;
3643 bfd_size_type max_sym_count;
3644 bfd_size_type text_size;
3646 struct bfd_link_order *p;
3648 bfd_boolean have_link_order_relocs;
3651 abfd->flags |= DYNAMIC;
3653 aout_info.info = info;
3654 aout_info.output_bfd = abfd;
3655 aout_info.contents = NULL;
3656 aout_info.relocs = NULL;
3657 aout_info.symbol_map = NULL;
3658 aout_info.output_syms = NULL;
3660 if (! bfd_hash_table_init_n (&aout_info.includes.root,
3661 aout_link_includes_newfunc,
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