1 /* vms.c -- BFD back-end for VAX (openVMS/VAX) and
2 EVAX (openVMS/Alpha) files.
3 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
4 Free Software Foundation, Inc.
6 Written by Klaus K"ampf (kkaempf@rmi.de)
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
29 static boolean vms_initialize
PARAMS ((bfd
*));
30 static unsigned int priv_section_count
;
31 static boolean fill_section_ptr
PARAMS ((struct bfd_hash_entry
*, PTR
));
32 static boolean vms_fixup_sections
PARAMS ((bfd
*));
33 static boolean copy_symbols
PARAMS ((struct bfd_hash_entry
*, PTR
));
34 static bfd_reloc_status_type reloc_nil
35 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
36 static const struct bfd_target
*vms_object_p
PARAMS ((bfd
*abfd
));
37 static const struct bfd_target
*vms_archive_p
PARAMS ((bfd
*abfd
));
38 static boolean vms_mkobject
PARAMS ((bfd
*abfd
));
39 static boolean vms_write_object_contents
PARAMS ((bfd
*abfd
));
40 static boolean vms_close_and_cleanup
PARAMS ((bfd
*abfd
));
41 static boolean vms_bfd_free_cached_info
PARAMS ((bfd
*abfd
));
42 static boolean vms_new_section_hook
PARAMS ((bfd
*abfd
, asection
*section
));
43 static boolean vms_get_section_contents
44 PARAMS ((bfd
*abfd
, asection
*section
, PTR x1
, file_ptr x2
,
46 static boolean vms_get_section_contents_in_window
47 PARAMS ((bfd
*abfd
, asection
*section
, bfd_window
*w
, file_ptr offset
,
48 bfd_size_type count
));
49 static boolean vms_bfd_copy_private_bfd_data
PARAMS ((bfd
*src
, bfd
*dest
));
50 static boolean vms_bfd_copy_private_section_data
51 PARAMS ((bfd
*srcbfd
, asection
*srcsec
, bfd
*dstbfd
, asection
*dstsec
));
52 static boolean vms_bfd_copy_private_symbol_data
53 PARAMS ((bfd
*ibfd
, asymbol
*isym
, bfd
*obfd
, asymbol
*osym
));
54 static boolean vms_bfd_print_private_bfd_data
55 PARAMS ((bfd
*abfd
, void *file
));
56 static char *vms_core_file_failing_command
PARAMS ((bfd
*abfd
));
57 static int vms_core_file_failing_signal
PARAMS ((bfd
*abfd
));
58 static boolean vms_core_file_matches_executable_p
59 PARAMS ((bfd
*abfd
, bfd
*bbfd
));
60 static boolean vms_slurp_armap
PARAMS ((bfd
*abfd
));
61 static boolean vms_slurp_extended_name_table
PARAMS ((bfd
*abfd
));
62 static boolean vms_construct_extended_name_table
63 PARAMS ((bfd
*abfd
, char **tabloc
, bfd_size_type
*tablen
,
65 static void vms_truncate_arname
66 PARAMS ((bfd
*abfd
, const char *pathname
, char *arhdr
));
67 static boolean vms_write_armap
68 PARAMS ((bfd
*arch
, unsigned int elength
, struct orl
*map
,
69 unsigned int orl_count
, int stridx
));
70 static PTR vms_read_ar_hdr
PARAMS ((bfd
*abfd
));
71 static bfd
*vms_get_elt_at_index
PARAMS ((bfd
*abfd
, symindex index
));
72 static bfd
*vms_openr_next_archived_file
PARAMS ((bfd
*arch
, bfd
*prev
));
73 static boolean vms_update_armap_timestamp
PARAMS ((bfd
*abfd
));
74 static int vms_generic_stat_arch_elt
PARAMS ((bfd
*, struct stat
*));
75 static long vms_get_symtab_upper_bound
PARAMS ((bfd
*abfd
));
76 static long vms_get_symtab
PARAMS ((bfd
*abfd
, asymbol
**symbols
));
77 static void vms_print_symbol
78 PARAMS ((bfd
*abfd
, PTR file
, asymbol
*symbol
, bfd_print_symbol_type how
));
79 static void vms_get_symbol_info
80 PARAMS ((bfd
*abfd
, asymbol
*symbol
, symbol_info
*ret
));
81 static boolean vms_bfd_is_local_label_name
PARAMS ((bfd
*abfd
, const char *));
82 static alent
*vms_get_lineno
PARAMS ((bfd
*abfd
, asymbol
*symbol
));
83 static boolean vms_find_nearest_line
84 PARAMS ((bfd
*abfd
, asection
*section
, asymbol
**symbols
, bfd_vma offset
,
85 const char **file
, const char **func
, unsigned int *line
));
86 static asymbol
*vms_bfd_make_debug_symbol
87 PARAMS ((bfd
*abfd
, void *ptr
, unsigned long size
));
88 static long vms_read_minisymbols
89 PARAMS ((bfd
*abfd
, boolean dynamic
, PTR
*minisymsp
, unsigned int *sizep
));
90 static asymbol
*vms_minisymbol_to_symbol
91 PARAMS ((bfd
*abfd
, boolean dynamic
, const PTR minisym
, asymbol
*sym
));
92 static long vms_get_reloc_upper_bound
PARAMS ((bfd
*abfd
, asection
*sect
));
93 static long vms_canonicalize_reloc
94 PARAMS ((bfd
*abfd
, asection
*srcsec
, arelent
**location
,
96 static const struct reloc_howto_struct
*vms_bfd_reloc_type_lookup
97 PARAMS ((bfd
*abfd
, bfd_reloc_code_real_type code
));
98 static boolean vms_set_arch_mach
99 PARAMS ((bfd
*abfd
, enum bfd_architecture arch
, unsigned long mach
));
100 static boolean vms_set_section_contents
101 PARAMS ((bfd
*abfd
, asection
*section
, PTR location
, file_ptr offset
,
102 bfd_size_type count
));
103 static int vms_sizeof_headers
PARAMS ((bfd
*abfd
, boolean reloc
));
104 static bfd_byte
*vms_bfd_get_relocated_section_contents
105 PARAMS ((bfd
*abfd
, struct bfd_link_info
*link_info
,
106 struct bfd_link_order
*link_order
, bfd_byte
*data
,
107 boolean relocateable
, asymbol
**symbols
));
108 static boolean vms_bfd_relax_section
109 PARAMS ((bfd
*abfd
, asection
*section
, struct bfd_link_info
*link_info
,
111 static boolean vms_bfd_gc_sections
112 PARAMS ((bfd
*abfd
, struct bfd_link_info
*link_info
));
113 static boolean vms_bfd_merge_sections
114 PARAMS ((bfd
*abfd
, struct bfd_link_info
*link_info
));
115 static struct bfd_link_hash_table
*vms_bfd_link_hash_table_create
116 PARAMS ((bfd
*abfd
));
117 static void vms_bfd_link_hash_table_free
118 PARAMS ((struct bfd_link_hash_table
*hash
));
119 static boolean vms_bfd_link_add_symbols
120 PARAMS ((bfd
*abfd
, struct bfd_link_info
*link_info
));
121 static boolean vms_bfd_final_link
122 PARAMS ((bfd
*abfd
, struct bfd_link_info
*link_info
));
123 static boolean vms_bfd_link_split_section
124 PARAMS ((bfd
*abfd
, asection
*section
));
125 static long vms_get_dynamic_symtab_upper_bound
PARAMS ((bfd
*abfd
));
126 static long vms_canonicalize_dynamic_symtab
127 PARAMS ((bfd
*abfd
, asymbol
**symbols
));
128 static long vms_get_dynamic_reloc_upper_bound
PARAMS ((bfd
*abfd
));
129 static long vms_canonicalize_dynamic_reloc
130 PARAMS ((bfd
*abfd
, arelent
**arel
, asymbol
**symbols
));
131 static boolean vms_bfd_merge_private_bfd_data
PARAMS ((bfd
*ibfd
, bfd
*obfd
));
132 static boolean vms_bfd_set_private_flags
PARAMS ((bfd
*abfd
, flagword flags
));
134 #define vms_make_empty_symbol _bfd_generic_make_empty_symbol
135 #define vms_bfd_link_just_syms _bfd_generic_link_just_syms
136 #define vms_bfd_discard_group bfd_generic_discard_group
138 /*===========================================================================*/
140 const bfd_target vms_alpha_vec
=
142 "vms-alpha", /* name */
143 bfd_target_evax_flavour
,
144 BFD_ENDIAN_LITTLE
, /* data byte order is little */
145 BFD_ENDIAN_LITTLE
, /* header byte order is little */
147 (HAS_RELOC
| HAS_SYMS
148 | WP_TEXT
| D_PAGED
), /* object flags */
149 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
150 | SEC_READONLY
| SEC_CODE
| SEC_DATA
151 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
), /* sect flags */
152 0, /* symbol_leading_char */
153 ' ', /* ar_pad_char */
154 15, /* ar_max_namelen */
155 bfd_getl64
, bfd_getl_signed_64
, bfd_putl64
,
156 bfd_getl32
, bfd_getl_signed_32
, bfd_putl32
,
157 bfd_getl16
, bfd_getl_signed_16
, bfd_putl16
,
158 bfd_getl64
, bfd_getl_signed_64
, bfd_putl64
,
159 bfd_getl32
, bfd_getl_signed_32
, bfd_putl32
,
160 bfd_getl16
, bfd_getl_signed_16
, bfd_putl16
,
162 {_bfd_dummy_target
, vms_object_p
, /* bfd_check_format */
163 vms_archive_p
, _bfd_dummy_target
},
164 {bfd_false
, vms_mkobject
, /* bfd_set_format */
165 _bfd_generic_mkarchive
, bfd_false
},
166 {bfd_false
, vms_write_object_contents
, /* bfd_write_contents */
167 _bfd_write_archive_contents
, bfd_false
},
169 BFD_JUMP_TABLE_GENERIC (vms
),
170 BFD_JUMP_TABLE_COPY (vms
),
171 BFD_JUMP_TABLE_CORE (vms
),
172 BFD_JUMP_TABLE_ARCHIVE (vms
),
173 BFD_JUMP_TABLE_SYMBOLS (vms
),
174 BFD_JUMP_TABLE_RELOCS (vms
),
175 BFD_JUMP_TABLE_WRITE (vms
),
176 BFD_JUMP_TABLE_LINK (vms
),
177 BFD_JUMP_TABLE_DYNAMIC (vms
),
184 const bfd_target vms_vax_vec
=
186 "vms-vax", /* name */
187 bfd_target_ovax_flavour
,
188 BFD_ENDIAN_LITTLE
, /* data byte order is little */
189 BFD_ENDIAN_LITTLE
, /* header byte order is little */
191 (HAS_RELOC
| HAS_SYMS
/* object flags */
193 | HAS_LINENO
| HAS_DEBUG
| HAS_LOCALS
),
195 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
196 | SEC_READONLY
| SEC_CODE
| SEC_DATA
197 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
), /* sect flags */
198 0, /* symbol_leading_char */
199 ' ', /* ar_pad_char */
200 15, /* ar_max_namelen */
201 bfd_getl64
, bfd_getl_signed_64
, bfd_putl64
,
202 bfd_getl32
, bfd_getl_signed_32
, bfd_putl32
,
203 bfd_getl16
, bfd_getl_signed_16
, bfd_putl16
, /* data */
204 bfd_getl64
, bfd_getl_signed_64
, bfd_putl64
,
205 bfd_getl32
, bfd_getl_signed_32
, bfd_putl32
,
206 bfd_getl16
, bfd_getl_signed_16
, bfd_putl16
, /* hdrs */
208 {_bfd_dummy_target
, vms_object_p
, /* bfd_check_format */
209 vms_archive_p
, _bfd_dummy_target
},
210 {bfd_false
, vms_mkobject
, /* bfd_set_format */
211 _bfd_generic_mkarchive
, bfd_false
},
212 {bfd_false
, vms_write_object_contents
, /* bfd_write_contents */
213 _bfd_write_archive_contents
, bfd_false
},
215 BFD_JUMP_TABLE_GENERIC (vms
),
216 BFD_JUMP_TABLE_COPY (vms
),
217 BFD_JUMP_TABLE_CORE (vms
),
218 BFD_JUMP_TABLE_ARCHIVE (vms
),
219 BFD_JUMP_TABLE_SYMBOLS (vms
),
220 BFD_JUMP_TABLE_RELOCS (vms
),
221 BFD_JUMP_TABLE_WRITE (vms
),
222 BFD_JUMP_TABLE_LINK (vms
),
223 BFD_JUMP_TABLE_DYNAMIC (vms
),
230 /*===========================================================================*/
232 /* Initialize private data */
235 vms_initialize (abfd
)
241 bfd_set_start_address (abfd
, (bfd_vma
) -1);
243 amt
= sizeof (struct vms_private_data_struct
);
244 abfd
->tdata
.any
= (struct vms_private_data_struct
*) bfd_alloc (abfd
, amt
);
245 if (abfd
->tdata
.any
== 0)
255 PRIV (rec_length
) = 0;
256 PRIV (file_format
) = FF_UNKNOWN
;
257 PRIV (fixup_done
) = false;
258 PRIV (sections
) = NULL
;
260 amt
= sizeof (struct stack_struct
) * STACKSIZE
;
261 PRIV (stack
) = (struct stack_struct
*) bfd_alloc (abfd
, amt
);
262 if (PRIV (stack
) == 0)
266 amt
= sizeof (struct bfd_hash_table
);
267 PRIV (vms_symbol_table
) = (struct bfd_hash_table
*) bfd_alloc (abfd
, amt
);
268 if (PRIV (vms_symbol_table
) == 0)
271 if (!bfd_hash_table_init (PRIV (vms_symbol_table
), _bfd_vms_hash_newfunc
))
274 amt
= sizeof (struct location_struct
) * LOCATION_SAVE_SIZE
;
275 PRIV (location_stack
) = (struct location_struct
*) bfd_alloc (abfd
, amt
);
276 if (PRIV (location_stack
) == 0)
279 for (i
= 0; i
< VMS_SECTION_COUNT
; i
++)
280 PRIV (vms_section_table
)[i
] = NULL
;
282 amt
= MAX_OUTREC_SIZE
;
283 PRIV (output_buf
) = (unsigned char *) bfd_alloc (abfd
, amt
);
284 if (PRIV (output_buf
) == 0)
287 PRIV (push_level
) = 0;
288 PRIV (pushed_size
) = 0;
289 PRIV (length_pos
) = 2;
290 PRIV (output_size
) = 0;
291 PRIV (output_alignment
) = 1;
296 bfd_hash_table_free (PRIV (vms_symbol_table
));
298 bfd_release (abfd
, abfd
->tdata
.any
);
303 /* Fill symbol->section with section ptr
304 symbol->section is filled with the section index for defined symbols
305 during reading the GSD/EGSD section. But we need the pointer to the
308 It has the correct value for referenced (undefined section) symbols
310 called from bfd_hash_traverse in vms_fixup_sections */
313 fill_section_ptr (entry
, sections
)
314 struct bfd_hash_entry
*entry
;
320 sym
= ((vms_symbol_entry
*)entry
)->symbol
;
324 vms_debug (6, "fill_section_ptr: sym %p, sec %p\n", sym
, sec
);
327 /* fill forward references (these contain section number, not section ptr). */
329 if ((unsigned int) sec
< priv_section_count
)
331 sec
= ((vms_symbol_entry
*)entry
)->symbol
->section
=
332 ((asection
**)sections
)[(int)sec
];
335 if (strcmp (sym
->name
, sec
->name
) == 0)
336 sym
->flags
|= BSF_SECTION_SYM
;
342 set up all pointers and arrays, counters and sizes are fixed now
344 we build a private sections vector for easy access since sections
345 are always referenced by an index number.
347 alloc PRIV(sections) according to abfd->section_count
348 copy abfd->sections to PRIV(sections) */
351 vms_fixup_sections (abfd
)
354 if (PRIV (fixup_done
))
358 * traverse symbol table and fill in all section pointers
361 /* can't provide section count as argument to fill_section_ptr(). */
362 priv_section_count
= PRIV (section_count
);
363 bfd_hash_traverse (PRIV (vms_symbol_table
), fill_section_ptr
,
364 (PTR
) (PRIV (sections
)));
366 PRIV (fixup_done
) = true;
371 /*===========================================================================*/
373 /* Check the format for a file being read.
374 Return a (bfd_target *) if it's an object file or zero if not. */
376 static const struct bfd_target
*
382 const struct bfd_target
*target_vector
= 0;
383 const bfd_arch_info_type
*arch
= 0;
384 PTR tdata_save
= abfd
->tdata
.any
;
385 bfd_vma saddr_save
= bfd_get_start_address (abfd
);
388 vms_debug (1, "vms_object_p(%p)\n", abfd
);
391 if (!vms_initialize (abfd
))
394 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
))
395 goto err_wrong_format
;
402 vms_debug (7, "reading at %08lx\n", bfd_tell(abfd
));
404 if (_bfd_vms_next_record (abfd
) < 0)
407 vms_debug (2, "next_record failed\n");
409 goto err_wrong_format
;
412 if ((prev_type
== EOBJ_S_C_EGSD
)
413 && (PRIV (rec_type
) != EOBJ_S_C_EGSD
))
415 if (! vms_fixup_sections (abfd
))
418 vms_debug (2, "vms_fixup_sections failed\n");
420 goto err_wrong_format
;
424 prev_type
= PRIV (rec_type
);
426 if (target_vector
== 0)
428 if (prev_type
<= OBJ_S_C_MAXRECTYP
)
429 target_vector
= &vms_vax_vec
;
431 target_vector
= &vms_alpha_vec
;
438 err
= _bfd_vms_slurp_hdr (abfd
, prev_type
);
443 err
= _bfd_vms_slurp_eom (abfd
, prev_type
);
447 err
= _bfd_vms_slurp_gsd (abfd
, prev_type
);
451 err
= _bfd_vms_slurp_tir (abfd
, prev_type
);
455 err
= _bfd_vms_slurp_dbg (abfd
, prev_type
);
459 err
= _bfd_vms_slurp_tbt (abfd
, prev_type
);
462 err
= _bfd_vms_slurp_lnk (abfd
, prev_type
);
470 vms_debug (2, "slurp type %d failed with %d\n", prev_type
, err
);
472 goto err_wrong_format
;
475 while ((prev_type
!= EOBJ_S_C_EEOM
) && (prev_type
!= OBJ_S_C_EOM
) && (prev_type
!= OBJ_S_C_EOMW
));
477 if (target_vector
== &vms_vax_vec
)
479 if (! vms_fixup_sections (abfd
))
482 vms_debug (2, "vms_fixup_sections failed\n");
484 goto err_wrong_format
;
487 /* set arch_info to vax */
489 arch
= bfd_scan_arch ("vax");
492 vms_debug (2, "arch is vax\n");
495 else if (target_vector
== &vms_alpha_vec
)
497 /* set arch_info to alpha */
499 arch
= bfd_scan_arch ("alpha");
502 vms_debug (2, "arch is alpha\n");
509 vms_debug (2, "arch not found\n");
511 goto err_wrong_format
;
513 abfd
->arch_info
= arch
;
515 return target_vector
;
518 bfd_set_error (bfd_error_wrong_format
);
520 if (abfd
->tdata
.any
!= tdata_save
&& abfd
->tdata
.any
!= NULL
)
521 bfd_release (abfd
, abfd
->tdata
.any
);
522 abfd
->tdata
.any
= tdata_save
;
523 bfd_set_start_address (abfd
, saddr_save
);
527 /* Check the format for a file being read.
528 Return a (bfd_target *) if it's an archive file or zero. */
530 static const struct bfd_target
*
532 bfd
*abfd ATTRIBUTE_UNUSED
;
535 vms_debug (1, "vms_archive_p(%p)\n", abfd
);
541 /* Set the format of a file being written. */
548 vms_debug (1, "vms_mkobject(%p)\n", abfd
);
551 if (!vms_initialize (abfd
))
556 const bfd_arch_info_type
*arch
= bfd_scan_arch ("vax");
558 const bfd_arch_info_type
*arch
= bfd_scan_arch ("alpha");
562 bfd_set_error(bfd_error_wrong_format
);
565 abfd
->arch_info
= arch
;
571 /* Write cached information into a file being written, at bfd_close. */
574 vms_write_object_contents (abfd
)
578 vms_debug (1, "vms_write_object_contents(%p)\n", abfd
);
581 if (abfd
->section_count
> 0) /* we have sections */
585 if (_bfd_vms_write_hdr (abfd
, OBJ_S_C_HDR
) != 0)
587 if (_bfd_vms_write_gsd (abfd
, OBJ_S_C_GSD
) != 0)
589 if (_bfd_vms_write_tir (abfd
, OBJ_S_C_TIR
) != 0)
591 if (_bfd_vms_write_tbt (abfd
, OBJ_S_C_TBT
) != 0)
593 if (_bfd_vms_write_dbg (abfd
, OBJ_S_C_DBG
) != 0)
595 if (abfd
->section_count
> 255)
597 if (_bfd_vms_write_eom (abfd
, OBJ_S_C_EOMW
) != 0)
602 if (_bfd_vms_write_eom (abfd
, OBJ_S_C_EOM
) != 0)
608 if (_bfd_vms_write_hdr (abfd
, EOBJ_S_C_EMH
) != 0)
610 if (_bfd_vms_write_gsd (abfd
, EOBJ_S_C_EGSD
) != 0)
612 if (_bfd_vms_write_tir (abfd
, EOBJ_S_C_ETIR
) != 0)
614 if (_bfd_vms_write_tbt (abfd
, EOBJ_S_C_ETBT
) != 0)
616 if (_bfd_vms_write_dbg (abfd
, EOBJ_S_C_EDBG
) != 0)
618 if (_bfd_vms_write_eom (abfd
, EOBJ_S_C_EEOM
) != 0)
625 /*-- 4.1, generic -----------------------------------------------------------*/
627 /* Called when the BFD is being closed to do any necessary cleanup. */
630 vms_close_and_cleanup (abfd
)
634 vms_debug (1, "vms_close_and_cleanup(%p)\n", abfd
);
639 if (PRIV (vms_buf
) != NULL
)
640 free (PRIV (vms_buf
));
642 if (PRIV (sections
) != NULL
)
643 free (PRIV (sections
));
645 if (PRIV (vms_symbol_table
))
646 bfd_hash_table_free (PRIV (vms_symbol_table
));
648 bfd_release (abfd
, abfd
->tdata
.any
);
649 abfd
->tdata
.any
= NULL
;
654 /* Ask the BFD to free all cached information. */
656 vms_bfd_free_cached_info (abfd
)
657 bfd
*abfd ATTRIBUTE_UNUSED
;
660 vms_debug (1, "vms_bfd_free_cached_info(%p)\n", abfd
);
665 /* Called when a new section is created. */
668 vms_new_section_hook (abfd
, section
)
672 /* Count hasn't been incremented yet. */
673 unsigned int section_count
= abfd
->section_count
+ 1;
676 vms_debug (1, "vms_new_section_hook (%p, [%d]%s), count %d\n",
677 abfd
, section
->index
, section
->name
, section_count
);
679 bfd_set_section_alignment (abfd
, section
, 4);
681 if (section_count
> PRIV (section_count
))
683 bfd_size_type amt
= section_count
;
684 amt
*= sizeof (asection
*);
685 PRIV (sections
) = (asection
**) bfd_realloc (PRIV (sections
), amt
);
686 if (PRIV (sections
) == 0)
688 PRIV (section_count
) = section_count
;
691 vms_debug (6, "section_count: %d\n", PRIV (section_count
));
693 PRIV (sections
)[section
->index
] = section
;
695 vms_debug (7, "%d: %s\n", section
->index
, section
->name
);
701 /* Read the contents of a section.
702 buf points to a buffer of buf_size bytes to be filled with
703 section data (starting at offset into section) */
706 vms_get_section_contents (abfd
, section
, buf
, offset
, buf_size
)
707 bfd
*abfd ATTRIBUTE_UNUSED
;
708 asection
*section ATTRIBUTE_UNUSED
;
709 PTR buf ATTRIBUTE_UNUSED
;
710 file_ptr offset ATTRIBUTE_UNUSED
;
711 bfd_size_type buf_size ATTRIBUTE_UNUSED
;
714 vms_debug (1, "vms_get_section_contents(%p, %s, %p, off %ld, size %d)\n",
715 abfd
, section
->name
, buf
, offset
, (int)buf_size
);
718 /* shouldn't be called, since all sections are IN_MEMORY */
723 /* Read the contents of a section.
724 buf points to a buffer of buf_size bytes to be filled with
725 section data (starting at offset into section) */
728 vms_get_section_contents_in_window (abfd
, section
, w
, offset
, count
)
729 bfd
*abfd ATTRIBUTE_UNUSED
;
730 asection
*section ATTRIBUTE_UNUSED
;
731 bfd_window
*w ATTRIBUTE_UNUSED
;
732 file_ptr offset ATTRIBUTE_UNUSED
;
733 bfd_size_type count ATTRIBUTE_UNUSED
;
736 vms_debug (1, "vms_get_section_contents_in_window(%p, %s, %p, off %ld, count %d)\n",
737 abfd
, section
->name
, w
, offset
, (int)count
);
740 /* shouldn't be called, since all sections are IN_MEMORY */
745 /*-- Part 4.2, copy private data --------------------------------------------*/
747 /* Called to copy BFD general private data from one object file
751 vms_bfd_copy_private_bfd_data (src
, dest
)
752 bfd
*src ATTRIBUTE_UNUSED
;
753 bfd
*dest ATTRIBUTE_UNUSED
;
756 vms_debug (1, "vms_bfd_copy_private_bfd_data(%p, %p)\n", src
, dest
);
761 /* Merge private BFD information from the BFD @var{ibfd} to the
762 the output file BFD @var{obfd} when linking. Return <<true>>
763 on success, <<false>> on error. Possible error returns are:
765 o <<bfd_error_no_memory>> -
766 Not enough memory exists to create private data for @var{obfd}. */
769 vms_bfd_merge_private_bfd_data (ibfd
, obfd
)
770 bfd
*ibfd ATTRIBUTE_UNUSED
;
771 bfd
*obfd ATTRIBUTE_UNUSED
;
774 vms_debug (1,"vms_bfd_merge_private_bfd_data(%p, %p)\n", ibfd
, obfd
);
779 /* Set private BFD flag information in the BFD @var{abfd}.
780 Return <<true>> on success, <<false>> on error. Possible error
783 o <<bfd_error_no_memory>> -
784 Not enough memory exists to create private data for @var{obfd}. */
787 vms_bfd_set_private_flags (abfd
, flags
)
788 bfd
*abfd ATTRIBUTE_UNUSED
;
789 flagword flags ATTRIBUTE_UNUSED
;
792 vms_debug (1,"vms_bfd_set_private_flags(%p, %lx)\n", abfd
, (long)flags
);
797 /* Called to copy BFD private section data from one object file
801 vms_bfd_copy_private_section_data (srcbfd
, srcsec
, dstbfd
, dstsec
)
802 bfd
*srcbfd ATTRIBUTE_UNUSED
;
803 asection
*srcsec ATTRIBUTE_UNUSED
;
804 bfd
*dstbfd ATTRIBUTE_UNUSED
;
805 asection
*dstsec ATTRIBUTE_UNUSED
;
808 vms_debug (1, "vms_bfd_copy_private_section_data(%p, %s, %p, %s)\n",
809 srcbfd
, srcsec
->name
, dstbfd
, dstsec
->name
);
814 /* Called to copy BFD private symbol data from one object file
818 vms_bfd_copy_private_symbol_data (ibfd
, isym
, obfd
, osym
)
819 bfd
*ibfd ATTRIBUTE_UNUSED
;
820 asymbol
*isym ATTRIBUTE_UNUSED
;
821 bfd
*obfd ATTRIBUTE_UNUSED
;
822 asymbol
*osym ATTRIBUTE_UNUSED
;
825 vms_debug (1, "vms_bfd_copy_private_symbol_data(%p, %s, %p, %s)\n",
826 ibfd
, isym
->name
, obfd
, osym
->name
);
831 /*-- Part 4.3, core file ----------------------------------------------------*/
833 /* Return a read-only string explaining which program was running
834 when it failed and produced the core file abfd. */
837 vms_core_file_failing_command (abfd
)
838 bfd
*abfd ATTRIBUTE_UNUSED
;
841 vms_debug (1, "vms_core_file_failing_command(%p)\n", abfd
);
846 /* Returns the signal number which caused the core dump which
847 generated the file the BFD abfd is attached to. */
850 vms_core_file_failing_signal (abfd
)
851 bfd
*abfd ATTRIBUTE_UNUSED
;
854 vms_debug (1, "vms_core_file_failing_signal(%p)\n", abfd
);
859 /* Return true if the core file attached to core_bfd was generated
860 by a run of the executable file attached to exec_bfd, false otherwise. */
863 vms_core_file_matches_executable_p (abfd
, bbfd
)
864 bfd
*abfd ATTRIBUTE_UNUSED
;
865 bfd
*bbfd ATTRIBUTE_UNUSED
;
868 vms_debug (1, "vms_core_file_matches_executable_p(%p, %p)\n", abfd
, bbfd
);
873 /*-- Part 4.4, archive ------------------------------------------------------*/
875 /* ??? do something with an archive map.
876 Return false on error, true otherwise. */
879 vms_slurp_armap (abfd
)
880 bfd
*abfd ATTRIBUTE_UNUSED
;
883 vms_debug (1, "vms_slurp_armap(%p)\n", abfd
);
888 /* ??? do something with an extended name table.
889 Return false on error, true otherwise. */
892 vms_slurp_extended_name_table (abfd
)
893 bfd
*abfd ATTRIBUTE_UNUSED
;
896 vms_debug (1, "vms_slurp_extended_name_table(%p)\n", abfd
);
901 /* ??? do something with an extended name table.
902 Return false on error, true otherwise. */
905 vms_construct_extended_name_table (abfd
, tabloc
, tablen
, name
)
906 bfd
*abfd ATTRIBUTE_UNUSED
;
907 char **tabloc ATTRIBUTE_UNUSED
;
908 bfd_size_type
*tablen ATTRIBUTE_UNUSED
;
909 const char **name ATTRIBUTE_UNUSED
;
912 vms_debug (1, "vms_construct_extended_name_table(%p)\n", abfd
);
917 /* Truncate the name of an archive to match system-dependent restrictions */
920 vms_truncate_arname (abfd
, pathname
, arhdr
)
921 bfd
*abfd ATTRIBUTE_UNUSED
;
922 const char *pathname ATTRIBUTE_UNUSED
;
923 char *arhdr ATTRIBUTE_UNUSED
;
926 vms_debug (1, "vms_truncate_arname(%p, %s, %s)\n", abfd
, pathname
, arhdr
);
931 /* ??? write archive map */
934 vms_write_armap (arch
, elength
, map
, orl_count
, stridx
)
935 bfd
*arch ATTRIBUTE_UNUSED
;
936 unsigned int elength ATTRIBUTE_UNUSED
;
937 struct orl
*map ATTRIBUTE_UNUSED
;
938 unsigned int orl_count ATTRIBUTE_UNUSED
;
939 int stridx ATTRIBUTE_UNUSED
;
942 vms_debug (1, "vms_write_armap(%p, %d, %p, %d %d)\n",
943 arch
, elength
, map
, orl_count
, stridx
);
948 /* Read archive header ??? */
951 vms_read_ar_hdr (abfd
)
952 bfd
* abfd ATTRIBUTE_UNUSED
;
955 vms_debug (1, "vms_read_ar_hdr(%p)\n", abfd
);
960 /* Provided a BFD, @var{archive}, containing an archive and NULL, open
961 an input BFD on the first contained element and returns that.
962 Subsequent calls should pass the archive and the previous return value
963 to return a created BFD to the next contained element.
964 NULL is returned when there are no more. */
967 vms_openr_next_archived_file (arch
, prev
)
968 bfd
*arch ATTRIBUTE_UNUSED
;
969 bfd
*prev ATTRIBUTE_UNUSED
;
972 vms_debug (1, "vms_openr_next_archived_file(%p, %p)\n", arch
, prev
);
977 /* Return the BFD which is referenced by the symbol in ABFD indexed by
978 INDEX. INDEX should have been returned by bfd_get_next_mapent. */
981 vms_get_elt_at_index (abfd
, index
)
986 vms_debug (1, "vms_get_elt_at_index(%p, %p)\n", abfd
, index
);
988 return _bfd_generic_get_elt_at_index(abfd
, index
);
992 -> bfd_generic_stat_arch_elt */
995 vms_generic_stat_arch_elt (abfd
, st
)
1000 vms_debug (1, "vms_generic_stat_arch_elt(%p, %p)\n", abfd
, st
);
1002 return bfd_generic_stat_arch_elt (abfd
, st
);
1005 /* This is a new function in bfd 2.5 */
1008 vms_update_armap_timestamp (abfd
)
1009 bfd
*abfd ATTRIBUTE_UNUSED
;
1012 vms_debug (1, "vms_update_armap_timestamp(%p)\n", abfd
);
1017 /*-- Part 4.5, symbols --------------------------------------------------------*/
1019 /* Return the number of bytes required to store a vector of pointers
1020 to asymbols for all the symbols in the BFD abfd, including a
1021 terminal NULL pointer. If there are no symbols in the BFD,
1022 then return 0. If an error occurs, return -1. */
1025 vms_get_symtab_upper_bound (abfd
)
1029 vms_debug (1, "vms_get_symtab_upper_bound(%p), %d symbols\n", abfd
, PRIV (gsd_sym_count
));
1031 return (PRIV (gsd_sym_count
)+1) * sizeof (asymbol
*);
1034 /* Copy symbols from hash table to symbol vector
1036 called from bfd_hash_traverse in vms_get_symtab
1037 init counter to 0 if entry == 0 */
1040 copy_symbols (entry
, arg
)
1041 struct bfd_hash_entry
*entry
;
1044 bfd
*abfd
= (bfd
*) arg
;
1046 if (entry
== NULL
) /* init counter */
1048 else /* fill vector, inc counter */
1049 PRIV (symcache
)[PRIV (symnum
)++] = ((vms_symbol_entry
*)entry
)->symbol
;
1054 /* Read the symbols from the BFD abfd, and fills in the vector
1055 location with pointers to the symbols and a trailing NULL.
1057 return # of symbols read */
1060 vms_get_symtab (abfd
, symbols
)
1065 vms_debug (1, "vms_get_symtab(%p, <ret>)\n", abfd
);
1069 (void)copy_symbols((struct bfd_hash_entry
*)0, abfd
);
1071 /* traverse table and fill symbols vector */
1073 PRIV (symcache
) = symbols
;
1074 bfd_hash_traverse(PRIV (vms_symbol_table
), copy_symbols
, (PTR
)abfd
);
1076 symbols
[PRIV (gsd_sym_count
)] = NULL
;
1078 return PRIV (gsd_sym_count
);
1081 /* Print symbol to file according to how. how is one of
1082 bfd_print_symbol_name just print the name
1083 bfd_print_symbol_more print more (???)
1084 bfd_print_symbol_all print all we know, which is not much right now :-) */
1087 vms_print_symbol (abfd
, file
, symbol
, how
)
1091 bfd_print_symbol_type how
;
1094 vms_debug (1, "vms_print_symbol(%p, %p, %p, %d)\n", abfd
, file
, symbol
, how
);
1099 case bfd_print_symbol_name
:
1100 case bfd_print_symbol_more
:
1101 fprintf ((FILE *)file
," %s", symbol
->name
);
1104 case bfd_print_symbol_all
:
1106 const char *section_name
= symbol
->section
->name
;
1108 bfd_print_symbol_vandf (abfd
, (PTR
)file
, symbol
);
1110 fprintf ((FILE *)file
," %-8s %s", section_name
, symbol
->name
);
1117 /* Return information about symbol in ret.
1119 fill type, value and name
1122 B bss segment symbol
1124 D data segment symbol
1126 t a static function symbol
1127 T text segment symbol
1132 vms_get_symbol_info (abfd
, symbol
, ret
)
1133 bfd
*abfd ATTRIBUTE_UNUSED
;
1140 vms_debug (1, "vms_get_symbol_info(%p, %p, %p)\n", abfd
, symbol
, ret
);
1143 sec
= symbol
->section
;
1148 if (bfd_is_com_section (sec
))
1150 else if (bfd_is_abs_section (sec
))
1152 else if (bfd_is_und_section (sec
))
1154 else if (bfd_is_ind_section (sec
))
1156 else if (bfd_get_section_flags (abfd
, sec
) & SEC_CODE
)
1158 else if (bfd_get_section_flags (abfd
, sec
) & SEC_DATA
)
1160 else if (bfd_get_section_flags (abfd
, sec
) & SEC_ALLOC
)
1165 if (ret
->type
!= 'U')
1166 ret
->value
= symbol
->value
+ symbol
->section
->vma
;
1169 ret
->name
= symbol
->name
;
1174 /* Return true if the given symbol sym in the BFD abfd is
1175 a compiler generated local label, else return false. */
1178 vms_bfd_is_local_label_name (abfd
, name
)
1179 bfd
*abfd ATTRIBUTE_UNUSED
;
1183 vms_debug (1, "vms_bfd_is_local_label_name(%p, %s)\n", abfd
, name
);
1185 return name
[0] == '$';
1188 /* Get source line number for symbol */
1191 vms_get_lineno (abfd
, symbol
)
1192 bfd
*abfd ATTRIBUTE_UNUSED
;
1193 asymbol
*symbol ATTRIBUTE_UNUSED
;
1196 vms_debug (1, "vms_get_lineno(%p, %p)\n", abfd
, symbol
);
1201 /* Provided a BFD, a section and an offset into the section, calculate and
1202 return the name of the source file and the line nearest to the wanted
1206 vms_find_nearest_line (abfd
, section
, symbols
, offset
, file
, func
, line
)
1207 bfd
*abfd ATTRIBUTE_UNUSED
;
1208 asection
*section ATTRIBUTE_UNUSED
;
1209 asymbol
**symbols ATTRIBUTE_UNUSED
;
1210 bfd_vma offset ATTRIBUTE_UNUSED
;
1211 const char **file ATTRIBUTE_UNUSED
;
1212 const char **func ATTRIBUTE_UNUSED
;
1213 unsigned int *line ATTRIBUTE_UNUSED
;
1216 vms_debug (1, "vms_find_nearest_line(%p, %s, %p, %ld, <ret>, <ret>, <ret>)\n",
1217 abfd
, section
->name
, symbols
, (long int)offset
);
1222 /* Back-door to allow format-aware applications to create debug symbols
1223 while using BFD for everything else. Currently used by the assembler
1224 when creating COFF files. */
1227 vms_bfd_make_debug_symbol (abfd
, ptr
, size
)
1228 bfd
*abfd ATTRIBUTE_UNUSED
;
1229 void *ptr ATTRIBUTE_UNUSED
;
1230 unsigned long size ATTRIBUTE_UNUSED
;
1233 vms_debug (1, "vms_bfd_make_debug_symbol(%p, %p, %ld)\n", abfd
, ptr
, size
);
1238 /* Read minisymbols. For minisymbols, we use the unmodified a.out
1239 symbols. The minisymbol_to_symbol function translates these into
1240 BFD asymbol structures. */
1243 vms_read_minisymbols (abfd
, dynamic
, minisymsp
, sizep
)
1247 unsigned int *sizep
;
1250 vms_debug (1, "vms_read_minisymbols(%p, %d, %p, %d)\n", abfd
, dynamic
, minisymsp
, *sizep
);
1252 return _bfd_generic_read_minisymbols (abfd
, dynamic
, minisymsp
, sizep
);
1255 /* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
1256 unmodified a.out symbol. The SYM argument is a structure returned
1257 by bfd_make_empty_symbol, which we fill in here. */
1260 vms_minisymbol_to_symbol (abfd
, dynamic
, minisym
, sym
)
1267 vms_debug (1, "vms_minisymbol_to_symbol(%p, %d, %p, %p)\n", abfd
, dynamic
, minisym
, sym
);
1269 return _bfd_generic_minisymbol_to_symbol (abfd
, dynamic
, minisym
, sym
);
1272 /*-- Part 4.6, relocations --------------------------------------------------*/
1274 /* Return the number of bytes required to store the relocation information
1275 associated with section sect attached to bfd abfd.
1276 If an error occurs, return -1. */
1279 vms_get_reloc_upper_bound (abfd
, section
)
1280 bfd
*abfd ATTRIBUTE_UNUSED
;
1281 asection
*section ATTRIBUTE_UNUSED
;
1284 vms_debug (1, "vms_get_reloc_upper_bound(%p, %s)\n", abfd
, section
->name
);
1289 /* Call the back end associated with the open BFD abfd and translate the
1290 external form of the relocation information attached to sec into the
1291 internal canonical form. Place the table into memory at loc, which has
1292 been preallocated, usually by a call to bfd_get_reloc_upper_bound.
1293 Returns the number of relocs, or -1 on error. */
1296 vms_canonicalize_reloc (abfd
, section
, location
, symbols
)
1297 bfd
*abfd ATTRIBUTE_UNUSED
;
1298 asection
*section ATTRIBUTE_UNUSED
;
1299 arelent
**location ATTRIBUTE_UNUSED
;
1300 asymbol
**symbols ATTRIBUTE_UNUSED
;
1303 vms_debug (1, "vms_canonicalize_reloc(%p, %s, <ret>, <ret>)\n", abfd
, section
->name
);
1308 /*---------------------------------------------------------------------------*/
1309 /* this is just copied from ecoff-alpha, needs to be fixed probably */
1311 /* How to process the various reloc types. */
1313 static bfd_reloc_status_type
1314 reloc_nil (abfd
, reloc
, sym
, data
, sec
, output_bfd
, error_message
)
1315 bfd
*abfd ATTRIBUTE_UNUSED
;
1316 arelent
*reloc ATTRIBUTE_UNUSED
;
1317 asymbol
*sym ATTRIBUTE_UNUSED
;
1318 PTR data ATTRIBUTE_UNUSED
;
1319 asection
*sec ATTRIBUTE_UNUSED
;
1320 bfd
*output_bfd ATTRIBUTE_UNUSED
;
1321 char **error_message ATTRIBUTE_UNUSED
;
1324 vms_debug (1, "reloc_nil(abfd %p, output_bfd %p)\n", abfd
, output_bfd
);
1325 vms_debug (2, "In section %s, symbol %s\n",
1326 sec
->name
, sym
->name
);
1327 vms_debug (2, "reloc sym %s, addr %08lx, addend %08lx, reloc is a %s\n",
1328 reloc
->sym_ptr_ptr
[0]->name
,
1329 (unsigned long)reloc
->address
,
1330 (unsigned long)reloc
->addend
, reloc
->howto
->name
);
1331 vms_debug (2, "data at %p\n", data
);
1332 /* _bfd_hexdump (2, data, bfd_get_reloc_size(reloc->howto),0); */
1335 return bfd_reloc_ok
;
1338 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
1339 from smaller values. Start with zero, widen, *then* decrement. */
1340 #define MINUS_ONE (((bfd_vma)0) - 1)
1342 static reloc_howto_type alpha_howto_table
[] =
1344 HOWTO (ALPHA_R_IGNORE
, /* type */
1346 0, /* size (0 = byte, 1 = short, 2 = long) */
1348 true, /* pc_relative */
1350 complain_overflow_dont
, /* complain_on_overflow */
1351 reloc_nil
, /* special_function */
1352 "IGNORE", /* name */
1353 true, /* partial_inplace */
1356 true), /* pcrel_offset */
1358 /* A 64 bit reference to a symbol. */
1359 HOWTO (ALPHA_R_REFQUAD
, /* type */
1361 4, /* size (0 = byte, 1 = short, 2 = long) */
1363 false, /* pc_relative */
1365 complain_overflow_bitfield
, /* complain_on_overflow */
1366 reloc_nil
, /* special_function */
1367 "REFQUAD", /* name */
1368 true, /* partial_inplace */
1369 MINUS_ONE
, /* src_mask */
1370 MINUS_ONE
, /* dst_mask */
1371 false), /* pcrel_offset */
1373 /* A 21 bit branch. The native assembler generates these for
1374 branches within the text segment, and also fills in the PC
1375 relative offset in the instruction. */
1376 HOWTO (ALPHA_R_BRADDR
, /* type */
1378 2, /* size (0 = byte, 1 = short, 2 = long) */
1380 true, /* pc_relative */
1382 complain_overflow_signed
, /* complain_on_overflow */
1383 reloc_nil
, /* special_function */
1384 "BRADDR", /* name */
1385 true, /* partial_inplace */
1386 0x1fffff, /* src_mask */
1387 0x1fffff, /* dst_mask */
1388 false), /* pcrel_offset */
1390 /* A hint for a jump to a register. */
1391 HOWTO (ALPHA_R_HINT
, /* type */
1393 1, /* size (0 = byte, 1 = short, 2 = long) */
1395 true, /* pc_relative */
1397 complain_overflow_dont
, /* complain_on_overflow */
1398 reloc_nil
, /* special_function */
1400 true, /* partial_inplace */
1401 0x3fff, /* src_mask */
1402 0x3fff, /* dst_mask */
1403 false), /* pcrel_offset */
1405 /* 16 bit PC relative offset. */
1406 HOWTO (ALPHA_R_SREL16
, /* type */
1408 1, /* size (0 = byte, 1 = short, 2 = long) */
1410 true, /* pc_relative */
1412 complain_overflow_signed
, /* complain_on_overflow */
1413 reloc_nil
, /* special_function */
1414 "SREL16", /* name */
1415 true, /* partial_inplace */
1416 0xffff, /* src_mask */
1417 0xffff, /* dst_mask */
1418 false), /* pcrel_offset */
1420 /* 32 bit PC relative offset. */
1421 HOWTO (ALPHA_R_SREL32
, /* type */
1423 2, /* size (0 = byte, 1 = short, 2 = long) */
1425 true, /* pc_relative */
1427 complain_overflow_signed
, /* complain_on_overflow */
1428 reloc_nil
, /* special_function */
1429 "SREL32", /* name */
1430 true, /* partial_inplace */
1431 0xffffffff, /* src_mask */
1432 0xffffffff, /* dst_mask */
1433 false), /* pcrel_offset */
1435 /* A 64 bit PC relative offset. */
1436 HOWTO (ALPHA_R_SREL64
, /* type */
1438 4, /* size (0 = byte, 1 = short, 2 = long) */
1440 true, /* pc_relative */
1442 complain_overflow_signed
, /* complain_on_overflow */
1443 reloc_nil
, /* special_function */
1444 "SREL64", /* name */
1445 true, /* partial_inplace */
1446 MINUS_ONE
, /* src_mask */
1447 MINUS_ONE
, /* dst_mask */
1448 false), /* pcrel_offset */
1450 /* Push a value on the reloc evaluation stack. */
1451 HOWTO (ALPHA_R_OP_PUSH
, /* type */
1453 0, /* size (0 = byte, 1 = short, 2 = long) */
1455 false, /* pc_relative */
1457 complain_overflow_dont
, /* complain_on_overflow */
1458 reloc_nil
, /* special_function */
1459 "OP_PUSH", /* name */
1460 false, /* partial_inplace */
1463 false), /* pcrel_offset */
1465 /* Store the value from the stack at the given address. Store it in
1466 a bitfield of size r_size starting at bit position r_offset. */
1467 HOWTO (ALPHA_R_OP_STORE
, /* type */
1469 4, /* size (0 = byte, 1 = short, 2 = long) */
1471 false, /* pc_relative */
1473 complain_overflow_dont
, /* complain_on_overflow */
1474 reloc_nil
, /* special_function */
1475 "OP_STORE", /* name */
1476 false, /* partial_inplace */
1478 MINUS_ONE
, /* dst_mask */
1479 false), /* pcrel_offset */
1481 /* Subtract the reloc address from the value on the top of the
1482 relocation stack. */
1483 HOWTO (ALPHA_R_OP_PSUB
, /* type */
1485 0, /* size (0 = byte, 1 = short, 2 = long) */
1487 false, /* pc_relative */
1489 complain_overflow_dont
, /* complain_on_overflow */
1490 reloc_nil
, /* special_function */
1491 "OP_PSUB", /* name */
1492 false, /* partial_inplace */
1495 false), /* pcrel_offset */
1497 /* Shift the value on the top of the relocation stack right by the
1499 HOWTO (ALPHA_R_OP_PRSHIFT
, /* type */
1501 0, /* size (0 = byte, 1 = short, 2 = long) */
1503 false, /* pc_relative */
1505 complain_overflow_dont
, /* complain_on_overflow */
1506 reloc_nil
, /* special_function */
1507 "OP_PRSHIFT", /* name */
1508 false, /* partial_inplace */
1511 false), /* pcrel_offset */
1513 /* Hack. Linkage is done by linker. */
1514 HOWTO (ALPHA_R_LINKAGE
, /* type */
1516 8, /* size (0 = byte, 1 = short, 2 = long) */
1518 false, /* pc_relative */
1520 complain_overflow_dont
, /* complain_on_overflow */
1521 reloc_nil
, /* special_function */
1522 "LINKAGE", /* name */
1523 false, /* partial_inplace */
1526 false), /* pcrel_offset */
1528 /* A 32 bit reference to a symbol. */
1529 HOWTO (ALPHA_R_REFLONG
, /* type */
1531 2, /* size (0 = byte, 1 = short, 2 = long) */
1533 false, /* pc_relative */
1535 complain_overflow_bitfield
, /* complain_on_overflow */
1536 reloc_nil
, /* special_function */
1537 "REFLONG", /* name */
1538 true, /* partial_inplace */
1539 0xffffffff, /* src_mask */
1540 0xffffffff, /* dst_mask */
1541 false), /* pcrel_offset */
1543 /* A 64 bit reference to a procedure, written as 32 bit value. */
1544 HOWTO (ALPHA_R_CODEADDR
, /* type */
1546 4, /* size (0 = byte, 1 = short, 2 = long) */
1548 false, /* pc_relative */
1550 complain_overflow_signed
,/* complain_on_overflow */
1551 reloc_nil
, /* special_function */
1552 "CODEADDR", /* name */
1553 false, /* partial_inplace */
1554 0xffffffff, /* src_mask */
1555 0xffffffff, /* dst_mask */
1556 false), /* pcrel_offset */
1560 /* Return a pointer to a howto structure which, when invoked, will perform
1561 the relocation code on data from the architecture noted. */
1563 static const struct reloc_howto_struct
*
1564 vms_bfd_reloc_type_lookup (abfd
, code
)
1565 bfd
*abfd ATTRIBUTE_UNUSED
;
1566 bfd_reloc_code_real_type code
;
1571 vms_debug (1, "vms_bfd_reloc_type_lookup(%p, %d)\t", abfd
, code
);
1576 case BFD_RELOC_16
: alpha_type
= ALPHA_R_SREL16
; break;
1577 case BFD_RELOC_32
: alpha_type
= ALPHA_R_REFLONG
; break;
1578 case BFD_RELOC_64
: alpha_type
= ALPHA_R_REFQUAD
; break;
1579 case BFD_RELOC_CTOR
: alpha_type
= ALPHA_R_REFQUAD
; break;
1580 case BFD_RELOC_23_PCREL_S2
: alpha_type
= ALPHA_R_BRADDR
; break;
1581 case BFD_RELOC_ALPHA_HINT
: alpha_type
= ALPHA_R_HINT
; break;
1582 case BFD_RELOC_16_PCREL
: alpha_type
= ALPHA_R_SREL16
; break;
1583 case BFD_RELOC_32_PCREL
: alpha_type
= ALPHA_R_SREL32
; break;
1584 case BFD_RELOC_64_PCREL
: alpha_type
= ALPHA_R_SREL64
; break;
1585 case BFD_RELOC_ALPHA_LINKAGE
: alpha_type
= ALPHA_R_LINKAGE
; break;
1586 case BFD_RELOC_ALPHA_CODEADDR
: alpha_type
= ALPHA_R_CODEADDR
; break;
1588 (*_bfd_error_handler
) ("reloc (%d) is *UNKNOWN*", code
);
1589 return (const struct reloc_howto_struct
*) NULL
;
1592 vms_debug (2, "reloc is %s\n", alpha_howto_table
[alpha_type
].name
);
1594 return &alpha_howto_table
[alpha_type
];
1597 /*-- Part 4.7, writing an object file ---------------------------------------*/
1599 /* Set the architecture and machine type in BFD abfd to arch and mach.
1600 Find the correct pointer to a structure and insert it into the arch_info
1604 vms_set_arch_mach (abfd
, arch
, mach
)
1606 enum bfd_architecture arch ATTRIBUTE_UNUSED
;
1607 unsigned long mach ATTRIBUTE_UNUSED
;
1610 vms_debug (1, "vms_set_arch_mach(%p, %d, %ld)\n", abfd
, arch
, mach
);
1612 abfd
->arch_info
= bfd_scan_arch("alpha");
1617 /* Sets the contents of the section section in BFD abfd to the data starting
1618 in memory at data. The data is written to the output section starting at
1619 offset offset for count bytes.
1621 Normally true is returned, else false. Possible error returns are:
1622 o bfd_error_no_contents - The output section does not have the
1623 SEC_HAS_CONTENTS attribute, so nothing can be written to it.
1624 o and some more too */
1627 vms_set_section_contents (abfd
, section
, location
, offset
, count
)
1632 bfd_size_type count
;
1635 vms_debug (1, "vms_set_section_contents(%p, sec %s, loc %p, off %ld, count %d)\n",
1636 abfd
, section
->name
, location
, (long int)offset
, (int)count
);
1637 vms_debug (2, "secraw %d, seccooked %d\n", (int)section
->_raw_size
, (int)section
->_cooked_size
);
1639 return _bfd_save_vms_section(abfd
, section
, location
, offset
, count
);
1642 /*-- Part 4.8, linker -------------------------------------------------------*/
1644 /* Get the size of the section headers. */
1647 vms_sizeof_headers (abfd
, reloc
)
1648 bfd
*abfd ATTRIBUTE_UNUSED
;
1649 boolean reloc ATTRIBUTE_UNUSED
;
1652 vms_debug (1, "vms_sizeof_headers(%p, %s)\n", abfd
, (reloc
)?"True":"False");
1657 /* Provides default handling of relocation effort for back ends
1658 which can't be bothered to do it efficiently. */
1661 vms_bfd_get_relocated_section_contents (abfd
, link_info
, link_order
, data
,
1662 relocateable
, symbols
)
1663 bfd
*abfd ATTRIBUTE_UNUSED
;
1664 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
1665 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
;
1666 bfd_byte
*data ATTRIBUTE_UNUSED
;
1667 boolean relocateable ATTRIBUTE_UNUSED
;
1668 asymbol
**symbols ATTRIBUTE_UNUSED
;
1671 vms_debug (1, "vms_bfd_get_relocated_section_contents(%p, %p, %p, %p, %s, %p)\n",
1672 abfd
, link_info
, link_order
, data
, (relocateable
)?"True":"False", symbols
);
1680 vms_bfd_relax_section (abfd
, section
, link_info
, again
)
1681 bfd
*abfd ATTRIBUTE_UNUSED
;
1682 asection
*section ATTRIBUTE_UNUSED
;
1683 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
1684 boolean
*again ATTRIBUTE_UNUSED
;
1687 vms_debug (1, "vms_bfd_relax_section(%p, %s, %p, <ret>)\n",
1688 abfd
, section
->name
, link_info
);
1694 vms_bfd_gc_sections (abfd
, link_info
)
1695 bfd
*abfd ATTRIBUTE_UNUSED
;
1696 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
1699 vms_debug (1, "vms_bfd_gc_sections(%p, %p)\n", abfd
, link_info
);
1705 vms_bfd_merge_sections (abfd
, link_info
)
1706 bfd
*abfd ATTRIBUTE_UNUSED
;
1707 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
1710 vms_debug (1, "vms_bfd_merge_sections(%p, %p)\n", abfd
, link_info
);
1715 /* Create a hash table for the linker. Different backends store
1716 different information in this table. */
1718 static struct bfd_link_hash_table
*
1719 vms_bfd_link_hash_table_create (abfd
)
1720 bfd
*abfd ATTRIBUTE_UNUSED
;
1723 vms_debug (1, "vms_bfd_link_hash_table_create(%p)\n", abfd
);
1728 /* Free a linker hash table. */
1731 vms_bfd_link_hash_table_free (hash
)
1732 struct bfd_link_hash_table
*hash ATTRIBUTE_UNUSED
;
1735 vms_debug (1, "vms_bfd_link_hash_table_free(%p)\n", abfd
);
1739 /* Add symbols from this object file into the hash table. */
1742 vms_bfd_link_add_symbols (abfd
, link_info
)
1743 bfd
*abfd ATTRIBUTE_UNUSED
;
1744 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
1747 vms_debug (1, "vms_bfd_link_add_symbols(%p, %p)\n", abfd
, link_info
);
1752 /* Do a link based on the link_order structures attached to each
1753 section of the BFD. */
1756 vms_bfd_final_link (abfd
, link_info
)
1757 bfd
*abfd ATTRIBUTE_UNUSED
;
1758 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
;
1761 vms_debug (1, "vms_bfd_final_link(%p, %p)\n", abfd
, link_info
);
1766 /* Should this section be split up into smaller pieces during linking. */
1769 vms_bfd_link_split_section (abfd
, section
)
1770 bfd
*abfd ATTRIBUTE_UNUSED
;
1771 asection
*section ATTRIBUTE_UNUSED
;
1774 vms_debug (1, "vms_bfd_link_split_section(%p, %s)\n", abfd
, section
->name
);
1779 /*-- Part 4.9, dynamic symbols and relocations ------------------------------*/
1781 /* Get the amount of memory required to hold the dynamic symbols. */
1784 vms_get_dynamic_symtab_upper_bound (abfd
)
1785 bfd
*abfd ATTRIBUTE_UNUSED
;
1788 vms_debug (1, "vms_get_dynamic_symtab_upper_bound(%p)\n", abfd
);
1794 vms_bfd_print_private_bfd_data (abfd
, file
)
1795 bfd
*abfd ATTRIBUTE_UNUSED
;
1796 void *file ATTRIBUTE_UNUSED
;
1799 vms_debug (1, "vms_bfd_print_private_bfd_data(%p)\n", abfd
);
1804 /* Read in the dynamic symbols. */
1807 vms_canonicalize_dynamic_symtab (abfd
, symbols
)
1808 bfd
*abfd ATTRIBUTE_UNUSED
;
1809 asymbol
**symbols ATTRIBUTE_UNUSED
;
1812 vms_debug (1, "vms_canonicalize_dynamic_symtab(%p, <ret>)\n", abfd
);
1817 /* Get the amount of memory required to hold the dynamic relocs. */
1820 vms_get_dynamic_reloc_upper_bound (abfd
)
1821 bfd
*abfd ATTRIBUTE_UNUSED
;
1824 vms_debug (1, "vms_get_dynamic_reloc_upper_bound(%p)\n", abfd
);
1829 /* Read in the dynamic relocs. */
1832 vms_canonicalize_dynamic_reloc (abfd
, arel
, symbols
)
1833 bfd
*abfd ATTRIBUTE_UNUSED
;
1834 arelent
**arel ATTRIBUTE_UNUSED
;
1835 asymbol
**symbols ATTRIBUTE_UNUSED
;
1838 vms_debug (1, "vms_canonicalize_dynamic_reloc(%p)\n", abfd
);