1 /* BFD back-end for ALPHA Extended-Coff files.
2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
3 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
4 Modified from coff-mips.c by Steve Chamberlain <sac@cygnus.com> and
5 Ian Lance Taylor <ian@cygnus.com>.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
27 #include "coff/internal.h"
29 #include "coff/symconst.h"
30 #include "coff/ecoff.h"
31 #include "coff/alpha.h"
36 /* Prototypes for static functions. */
38 static const bfd_target
*alpha_ecoff_object_p
40 static bfd_boolean alpha_ecoff_bad_format_hook
41 PARAMS ((bfd
*abfd
, PTR filehdr
));
42 static PTR alpha_ecoff_mkobject_hook
43 PARAMS ((bfd
*, PTR filehdr
, PTR aouthdr
));
44 static void alpha_ecoff_swap_reloc_in
45 PARAMS ((bfd
*, PTR
, struct internal_reloc
*));
46 static void alpha_ecoff_swap_reloc_out
47 PARAMS ((bfd
*, const struct internal_reloc
*, PTR
));
48 static void alpha_adjust_reloc_in
49 PARAMS ((bfd
*, const struct internal_reloc
*, arelent
*));
50 static void alpha_adjust_reloc_out
51 PARAMS ((bfd
*, const arelent
*, struct internal_reloc
*));
52 static reloc_howto_type
*alpha_bfd_reloc_type_lookup
53 PARAMS ((bfd
*, bfd_reloc_code_real_type
));
54 static bfd_byte
*alpha_ecoff_get_relocated_section_contents
55 PARAMS ((bfd
*abfd
, struct bfd_link_info
*, struct bfd_link_order
*,
56 bfd_byte
*data
, bfd_boolean relocatable
, asymbol
**symbols
));
57 static bfd_vma alpha_convert_external_reloc
58 PARAMS ((bfd
*, struct bfd_link_info
*, bfd
*, struct external_reloc
*,
59 struct ecoff_link_hash_entry
*));
60 static bfd_boolean alpha_relocate_section
61 PARAMS ((bfd
*, struct bfd_link_info
*, bfd
*, asection
*, bfd_byte
*, PTR
));
62 static bfd_boolean alpha_adjust_headers
63 PARAMS ((bfd
*, struct internal_filehdr
*, struct internal_aouthdr
*));
64 static PTR alpha_ecoff_read_ar_hdr
66 static bfd
*alpha_ecoff_get_elt_at_filepos
67 PARAMS ((bfd
*, file_ptr
));
68 static bfd
*alpha_ecoff_openr_next_archived_file
69 PARAMS ((bfd
*, bfd
*));
70 static bfd
*alpha_ecoff_get_elt_at_index
71 PARAMS ((bfd
*, symindex
));
73 /* ECOFF has COFF sections, but the debugging information is stored in
74 a completely different format. ECOFF targets use some of the
75 swapping routines from coffswap.h, and some of the generic COFF
76 routines in coffgen.c, but, unlike the real COFF targets, do not
77 use coffcode.h itself.
79 Get the generic COFF swapping routines, except for the reloc,
80 symbol, and lineno ones. Give them ecoff names. Define some
81 accessor macros for the large sizes used for Alpha ECOFF. */
83 #define GET_FILEHDR_SYMPTR H_GET_64
84 #define PUT_FILEHDR_SYMPTR H_PUT_64
85 #define GET_AOUTHDR_TSIZE H_GET_64
86 #define PUT_AOUTHDR_TSIZE H_PUT_64
87 #define GET_AOUTHDR_DSIZE H_GET_64
88 #define PUT_AOUTHDR_DSIZE H_PUT_64
89 #define GET_AOUTHDR_BSIZE H_GET_64
90 #define PUT_AOUTHDR_BSIZE H_PUT_64
91 #define GET_AOUTHDR_ENTRY H_GET_64
92 #define PUT_AOUTHDR_ENTRY H_PUT_64
93 #define GET_AOUTHDR_TEXT_START H_GET_64
94 #define PUT_AOUTHDR_TEXT_START H_PUT_64
95 #define GET_AOUTHDR_DATA_START H_GET_64
96 #define PUT_AOUTHDR_DATA_START H_PUT_64
97 #define GET_SCNHDR_PADDR H_GET_64
98 #define PUT_SCNHDR_PADDR H_PUT_64
99 #define GET_SCNHDR_VADDR H_GET_64
100 #define PUT_SCNHDR_VADDR H_PUT_64
101 #define GET_SCNHDR_SIZE H_GET_64
102 #define PUT_SCNHDR_SIZE H_PUT_64
103 #define GET_SCNHDR_SCNPTR H_GET_64
104 #define PUT_SCNHDR_SCNPTR H_PUT_64
105 #define GET_SCNHDR_RELPTR H_GET_64
106 #define PUT_SCNHDR_RELPTR H_PUT_64
107 #define GET_SCNHDR_LNNOPTR H_GET_64
108 #define PUT_SCNHDR_LNNOPTR H_PUT_64
112 #define NO_COFF_RELOCS
113 #define NO_COFF_SYMBOLS
114 #define NO_COFF_LINENOS
115 #define coff_swap_filehdr_in alpha_ecoff_swap_filehdr_in
116 #define coff_swap_filehdr_out alpha_ecoff_swap_filehdr_out
117 #define coff_swap_aouthdr_in alpha_ecoff_swap_aouthdr_in
118 #define coff_swap_aouthdr_out alpha_ecoff_swap_aouthdr_out
119 #define coff_swap_scnhdr_in alpha_ecoff_swap_scnhdr_in
120 #define coff_swap_scnhdr_out alpha_ecoff_swap_scnhdr_out
121 #include "coffswap.h"
123 /* Get the ECOFF swapping routines. */
125 #include "ecoffswap.h"
127 /* How to process the various reloc types. */
129 static bfd_reloc_status_type reloc_nil
130 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
132 static bfd_reloc_status_type
133 reloc_nil (abfd
, reloc
, sym
, data
, sec
, output_bfd
, error_message
)
134 bfd
*abfd ATTRIBUTE_UNUSED
;
135 arelent
*reloc ATTRIBUTE_UNUSED
;
136 asymbol
*sym ATTRIBUTE_UNUSED
;
137 PTR data ATTRIBUTE_UNUSED
;
138 asection
*sec ATTRIBUTE_UNUSED
;
139 bfd
*output_bfd ATTRIBUTE_UNUSED
;
140 char **error_message ATTRIBUTE_UNUSED
;
145 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
146 from smaller values. Start with zero, widen, *then* decrement. */
147 #define MINUS_ONE (((bfd_vma)0) - 1)
149 static reloc_howto_type alpha_howto_table
[] =
151 /* Reloc type 0 is ignored by itself. However, it appears after a
152 GPDISP reloc to identify the location where the low order 16 bits
153 of the gp register are loaded. */
154 HOWTO (ALPHA_R_IGNORE
, /* type */
156 0, /* size (0 = byte, 1 = short, 2 = long) */
158 TRUE
, /* pc_relative */
160 complain_overflow_dont
, /* complain_on_overflow */
161 reloc_nil
, /* special_function */
163 TRUE
, /* partial_inplace */
166 TRUE
), /* pcrel_offset */
168 /* A 32 bit reference to a symbol. */
169 HOWTO (ALPHA_R_REFLONG
, /* type */
171 2, /* size (0 = byte, 1 = short, 2 = long) */
173 FALSE
, /* pc_relative */
175 complain_overflow_bitfield
, /* complain_on_overflow */
176 0, /* special_function */
177 "REFLONG", /* name */
178 TRUE
, /* partial_inplace */
179 0xffffffff, /* src_mask */
180 0xffffffff, /* dst_mask */
181 FALSE
), /* pcrel_offset */
183 /* A 64 bit reference to a symbol. */
184 HOWTO (ALPHA_R_REFQUAD
, /* type */
186 4, /* size (0 = byte, 1 = short, 2 = long) */
188 FALSE
, /* pc_relative */
190 complain_overflow_bitfield
, /* complain_on_overflow */
191 0, /* special_function */
192 "REFQUAD", /* name */
193 TRUE
, /* partial_inplace */
194 MINUS_ONE
, /* src_mask */
195 MINUS_ONE
, /* dst_mask */
196 FALSE
), /* pcrel_offset */
198 /* A 32 bit GP relative offset. This is just like REFLONG except
199 that when the value is used the value of the gp register will be
201 HOWTO (ALPHA_R_GPREL32
, /* type */
203 2, /* size (0 = byte, 1 = short, 2 = long) */
205 FALSE
, /* pc_relative */
207 complain_overflow_bitfield
, /* complain_on_overflow */
208 0, /* special_function */
209 "GPREL32", /* name */
210 TRUE
, /* partial_inplace */
211 0xffffffff, /* src_mask */
212 0xffffffff, /* dst_mask */
213 FALSE
), /* pcrel_offset */
215 /* Used for an instruction that refers to memory off the GP
216 register. The offset is 16 bits of the 32 bit instruction. This
217 reloc always seems to be against the .lita section. */
218 HOWTO (ALPHA_R_LITERAL
, /* type */
220 2, /* size (0 = byte, 1 = short, 2 = long) */
222 FALSE
, /* pc_relative */
224 complain_overflow_signed
, /* complain_on_overflow */
225 0, /* special_function */
226 "LITERAL", /* name */
227 TRUE
, /* partial_inplace */
228 0xffff, /* src_mask */
229 0xffff, /* dst_mask */
230 FALSE
), /* pcrel_offset */
232 /* This reloc only appears immediately following a LITERAL reloc.
233 It identifies a use of the literal. It seems that the linker can
234 use this to eliminate a portion of the .lita section. The symbol
235 index is special: 1 means the literal address is in the base
236 register of a memory format instruction; 2 means the literal
237 address is in the byte offset register of a byte-manipulation
238 instruction; 3 means the literal address is in the target
239 register of a jsr instruction. This does not actually do any
241 HOWTO (ALPHA_R_LITUSE
, /* type */
243 2, /* size (0 = byte, 1 = short, 2 = long) */
245 FALSE
, /* pc_relative */
247 complain_overflow_dont
, /* complain_on_overflow */
248 reloc_nil
, /* special_function */
250 FALSE
, /* partial_inplace */
253 FALSE
), /* pcrel_offset */
255 /* Load the gp register. This is always used for a ldah instruction
256 which loads the upper 16 bits of the gp register. The next reloc
257 will be an IGNORE reloc which identifies the location of the lda
258 instruction which loads the lower 16 bits. The symbol index of
259 the GPDISP instruction appears to actually be the number of bytes
260 between the ldah and lda instructions. This gives two different
261 ways to determine where the lda instruction is; I don't know why
262 both are used. The value to use for the relocation is the
263 difference between the GP value and the current location; the
264 load will always be done against a register holding the current
266 HOWTO (ALPHA_R_GPDISP
, /* type */
268 2, /* size (0 = byte, 1 = short, 2 = long) */
270 TRUE
, /* pc_relative */
272 complain_overflow_dont
, /* complain_on_overflow */
273 reloc_nil
, /* special_function */
275 TRUE
, /* partial_inplace */
276 0xffff, /* src_mask */
277 0xffff, /* dst_mask */
278 TRUE
), /* pcrel_offset */
280 /* A 21 bit branch. The native assembler generates these for
281 branches within the text segment, and also fills in the PC
282 relative offset in the instruction. */
283 HOWTO (ALPHA_R_BRADDR
, /* type */
285 2, /* size (0 = byte, 1 = short, 2 = long) */
287 TRUE
, /* pc_relative */
289 complain_overflow_signed
, /* complain_on_overflow */
290 0, /* special_function */
292 TRUE
, /* partial_inplace */
293 0x1fffff, /* src_mask */
294 0x1fffff, /* dst_mask */
295 FALSE
), /* pcrel_offset */
297 /* A hint for a jump to a register. */
298 HOWTO (ALPHA_R_HINT
, /* type */
300 2, /* size (0 = byte, 1 = short, 2 = long) */
302 TRUE
, /* pc_relative */
304 complain_overflow_dont
, /* complain_on_overflow */
305 0, /* special_function */
307 TRUE
, /* partial_inplace */
308 0x3fff, /* src_mask */
309 0x3fff, /* dst_mask */
310 FALSE
), /* pcrel_offset */
312 /* 16 bit PC relative offset. */
313 HOWTO (ALPHA_R_SREL16
, /* type */
315 1, /* size (0 = byte, 1 = short, 2 = long) */
317 TRUE
, /* pc_relative */
319 complain_overflow_signed
, /* complain_on_overflow */
320 0, /* special_function */
322 TRUE
, /* partial_inplace */
323 0xffff, /* src_mask */
324 0xffff, /* dst_mask */
325 FALSE
), /* pcrel_offset */
327 /* 32 bit PC relative offset. */
328 HOWTO (ALPHA_R_SREL32
, /* type */
330 2, /* size (0 = byte, 1 = short, 2 = long) */
332 TRUE
, /* pc_relative */
334 complain_overflow_signed
, /* complain_on_overflow */
335 0, /* special_function */
337 TRUE
, /* partial_inplace */
338 0xffffffff, /* src_mask */
339 0xffffffff, /* dst_mask */
340 FALSE
), /* pcrel_offset */
342 /* A 64 bit PC relative offset. */
343 HOWTO (ALPHA_R_SREL64
, /* type */
345 4, /* size (0 = byte, 1 = short, 2 = long) */
347 TRUE
, /* pc_relative */
349 complain_overflow_signed
, /* complain_on_overflow */
350 0, /* special_function */
352 TRUE
, /* partial_inplace */
353 MINUS_ONE
, /* src_mask */
354 MINUS_ONE
, /* dst_mask */
355 FALSE
), /* pcrel_offset */
357 /* Push a value on the reloc evaluation stack. */
358 HOWTO (ALPHA_R_OP_PUSH
, /* type */
360 0, /* size (0 = byte, 1 = short, 2 = long) */
362 FALSE
, /* pc_relative */
364 complain_overflow_dont
, /* complain_on_overflow */
365 0, /* special_function */
366 "OP_PUSH", /* name */
367 FALSE
, /* partial_inplace */
370 FALSE
), /* pcrel_offset */
372 /* Store the value from the stack at the given address. Store it in
373 a bitfield of size r_size starting at bit position r_offset. */
374 HOWTO (ALPHA_R_OP_STORE
, /* type */
376 4, /* size (0 = byte, 1 = short, 2 = long) */
378 FALSE
, /* pc_relative */
380 complain_overflow_dont
, /* complain_on_overflow */
381 0, /* special_function */
382 "OP_STORE", /* name */
383 FALSE
, /* partial_inplace */
385 MINUS_ONE
, /* dst_mask */
386 FALSE
), /* pcrel_offset */
388 /* Subtract the reloc address from the value on the top of the
390 HOWTO (ALPHA_R_OP_PSUB
, /* type */
392 0, /* size (0 = byte, 1 = short, 2 = long) */
394 FALSE
, /* pc_relative */
396 complain_overflow_dont
, /* complain_on_overflow */
397 0, /* special_function */
398 "OP_PSUB", /* name */
399 FALSE
, /* partial_inplace */
402 FALSE
), /* pcrel_offset */
404 /* Shift the value on the top of the relocation stack right by the
406 HOWTO (ALPHA_R_OP_PRSHIFT
, /* type */
408 0, /* size (0 = byte, 1 = short, 2 = long) */
410 FALSE
, /* pc_relative */
412 complain_overflow_dont
, /* complain_on_overflow */
413 0, /* special_function */
414 "OP_PRSHIFT", /* name */
415 FALSE
, /* partial_inplace */
418 FALSE
), /* pcrel_offset */
420 /* Adjust the GP value for a new range in the object file. */
421 HOWTO (ALPHA_R_GPVALUE
, /* type */
423 0, /* size (0 = byte, 1 = short, 2 = long) */
425 FALSE
, /* pc_relative */
427 complain_overflow_dont
, /* complain_on_overflow */
428 0, /* special_function */
429 "GPVALUE", /* name */
430 FALSE
, /* partial_inplace */
433 FALSE
) /* pcrel_offset */
436 /* Recognize an Alpha ECOFF file. */
438 static const bfd_target
*
439 alpha_ecoff_object_p (abfd
)
442 static const bfd_target
*ret
;
444 ret
= coff_object_p (abfd
);
450 /* Alpha ECOFF has a .pdata section. The lnnoptr field of the
451 .pdata section is the number of entries it contains. Each
452 entry takes up 8 bytes. The number of entries is required
453 since the section is aligned to a 16 byte boundary. When we
454 link .pdata sections together, we do not want to include the
455 alignment bytes. We handle this on input by faking the size
456 of the .pdata section to remove the unwanted alignment bytes.
457 On output we will set the lnnoptr field and force the
459 sec
= bfd_get_section_by_name (abfd
, _PDATA
);
460 if (sec
!= (asection
*) NULL
)
464 size
= sec
->line_filepos
* 8;
465 BFD_ASSERT (size
== sec
->size
466 || size
+ 8 == sec
->size
);
467 if (! bfd_set_section_size (abfd
, sec
, size
))
475 /* See whether the magic number matches. */
478 alpha_ecoff_bad_format_hook (abfd
, filehdr
)
479 bfd
*abfd ATTRIBUTE_UNUSED
;
482 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
484 if (! ALPHA_ECOFF_BADMAG (*internal_f
))
487 if (ALPHA_ECOFF_COMPRESSEDMAG (*internal_f
))
488 (*_bfd_error_handler
)
489 (_("%B: Cannot handle compressed Alpha binaries.\n"
490 " Use compiler flags, or objZ, to generate uncompressed binaries."),
496 /* This is a hook called by coff_real_object_p to create any backend
497 specific information. */
500 alpha_ecoff_mkobject_hook (abfd
, filehdr
, aouthdr
)
507 ecoff
= _bfd_ecoff_mkobject_hook (abfd
, filehdr
, aouthdr
);
511 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
513 /* Set additional BFD flags according to the object type from the
514 machine specific file header flags. */
515 switch (internal_f
->f_flags
& F_ALPHA_OBJECT_TYPE_MASK
)
517 case F_ALPHA_SHARABLE
:
518 abfd
->flags
|= DYNAMIC
;
520 case F_ALPHA_CALL_SHARED
:
521 /* Always executable if using shared libraries as the run time
522 loader might resolve undefined references. */
523 abfd
->flags
|= (DYNAMIC
| EXEC_P
);
530 /* Reloc handling. */
532 /* Swap a reloc in. */
535 alpha_ecoff_swap_reloc_in (abfd
, ext_ptr
, intern
)
538 struct internal_reloc
*intern
;
540 const RELOC
*ext
= (RELOC
*) ext_ptr
;
542 intern
->r_vaddr
= H_GET_64 (abfd
, ext
->r_vaddr
);
543 intern
->r_symndx
= H_GET_32 (abfd
, ext
->r_symndx
);
545 BFD_ASSERT (bfd_header_little_endian (abfd
));
547 intern
->r_type
= ((ext
->r_bits
[0] & RELOC_BITS0_TYPE_LITTLE
)
548 >> RELOC_BITS0_TYPE_SH_LITTLE
);
549 intern
->r_extern
= (ext
->r_bits
[1] & RELOC_BITS1_EXTERN_LITTLE
) != 0;
550 intern
->r_offset
= ((ext
->r_bits
[1] & RELOC_BITS1_OFFSET_LITTLE
)
551 >> RELOC_BITS1_OFFSET_SH_LITTLE
);
552 /* Ignored the reserved bits. */
553 intern
->r_size
= ((ext
->r_bits
[3] & RELOC_BITS3_SIZE_LITTLE
)
554 >> RELOC_BITS3_SIZE_SH_LITTLE
);
556 if (intern
->r_type
== ALPHA_R_LITUSE
557 || intern
->r_type
== ALPHA_R_GPDISP
)
559 /* Handle the LITUSE and GPDISP relocs specially. Its symndx
560 value is not actually a symbol index, but is instead a
561 special code. We put the code in the r_size field, and
562 clobber the symndx. */
563 if (intern
->r_size
!= 0)
565 intern
->r_size
= intern
->r_symndx
;
566 intern
->r_symndx
= RELOC_SECTION_NONE
;
568 else if (intern
->r_type
== ALPHA_R_IGNORE
)
570 /* The IGNORE reloc generally follows a GPDISP reloc, and is
571 against the .lita section. The section is irrelevant. */
572 if (! intern
->r_extern
&&
573 intern
->r_symndx
== RELOC_SECTION_ABS
)
575 if (! intern
->r_extern
&& intern
->r_symndx
== RELOC_SECTION_LITA
)
576 intern
->r_symndx
= RELOC_SECTION_ABS
;
580 /* Swap a reloc out. */
583 alpha_ecoff_swap_reloc_out (abfd
, intern
, dst
)
585 const struct internal_reloc
*intern
;
588 RELOC
*ext
= (RELOC
*) dst
;
592 /* Undo the hackery done in swap_reloc_in. */
593 if (intern
->r_type
== ALPHA_R_LITUSE
594 || intern
->r_type
== ALPHA_R_GPDISP
)
596 symndx
= intern
->r_size
;
599 else if (intern
->r_type
== ALPHA_R_IGNORE
600 && ! intern
->r_extern
601 && intern
->r_symndx
== RELOC_SECTION_ABS
)
603 symndx
= RELOC_SECTION_LITA
;
604 size
= intern
->r_size
;
608 symndx
= intern
->r_symndx
;
609 size
= intern
->r_size
;
612 /* XXX FIXME: The maximum symndx value used to be 14 but this
613 fails with object files produced by DEC's C++ compiler.
614 Where does the value 14 (or 15) come from anyway ? */
615 BFD_ASSERT (intern
->r_extern
616 || (intern
->r_symndx
>= 0 && intern
->r_symndx
<= 15));
618 H_PUT_64 (abfd
, intern
->r_vaddr
, ext
->r_vaddr
);
619 H_PUT_32 (abfd
, symndx
, ext
->r_symndx
);
621 BFD_ASSERT (bfd_header_little_endian (abfd
));
623 ext
->r_bits
[0] = ((intern
->r_type
<< RELOC_BITS0_TYPE_SH_LITTLE
)
624 & RELOC_BITS0_TYPE_LITTLE
);
625 ext
->r_bits
[1] = ((intern
->r_extern
? RELOC_BITS1_EXTERN_LITTLE
: 0)
626 | ((intern
->r_offset
<< RELOC_BITS1_OFFSET_SH_LITTLE
)
627 & RELOC_BITS1_OFFSET_LITTLE
));
629 ext
->r_bits
[3] = ((size
<< RELOC_BITS3_SIZE_SH_LITTLE
)
630 & RELOC_BITS3_SIZE_LITTLE
);
633 /* Finish canonicalizing a reloc. Part of this is generic to all
634 ECOFF targets, and that part is in ecoff.c. The rest is done in
635 this backend routine. It must fill in the howto field. */
638 alpha_adjust_reloc_in (abfd
, intern
, rptr
)
640 const struct internal_reloc
*intern
;
643 if (intern
->r_type
> ALPHA_R_GPVALUE
)
645 (*_bfd_error_handler
)
646 (_("%B: unknown/unsupported relocation type %d"),
647 abfd
, intern
->r_type
);
648 bfd_set_error (bfd_error_bad_value
);
654 switch (intern
->r_type
)
660 /* This relocs appear to be fully resolved when they are against
661 internal symbols. Against external symbols, BRADDR at least
662 appears to be resolved against the next instruction. */
663 if (! intern
->r_extern
)
666 rptr
->addend
= - (intern
->r_vaddr
+ 4);
669 case ALPHA_R_GPREL32
:
670 case ALPHA_R_LITERAL
:
671 /* Copy the gp value for this object file into the addend, to
672 ensure that we are not confused by the linker. */
673 if (! intern
->r_extern
)
674 rptr
->addend
+= ecoff_data (abfd
)->gp
;
679 /* The LITUSE and GPDISP relocs do not use a symbol, or an
680 addend, but they do use a special code. Put this code in the
682 rptr
->addend
= intern
->r_size
;
685 case ALPHA_R_OP_STORE
:
686 /* The STORE reloc needs the size and offset fields. We store
687 them in the addend. */
688 BFD_ASSERT (intern
->r_offset
<= 256);
689 rptr
->addend
= (intern
->r_offset
<< 8) + intern
->r_size
;
692 case ALPHA_R_OP_PUSH
:
693 case ALPHA_R_OP_PSUB
:
694 case ALPHA_R_OP_PRSHIFT
:
695 /* The PUSH, PSUB and PRSHIFT relocs do not actually use an
696 address. I believe that the address supplied is really an
698 rptr
->addend
= intern
->r_vaddr
;
701 case ALPHA_R_GPVALUE
:
702 /* Set the addend field to the new GP value. */
703 rptr
->addend
= intern
->r_symndx
+ ecoff_data (abfd
)->gp
;
707 /* If the type is ALPHA_R_IGNORE, make sure this is a reference
708 to the absolute section so that the reloc is ignored. For
709 some reason the address of this reloc type is not adjusted by
710 the section vma. We record the gp value for this object file
711 here, for convenience when doing the GPDISP relocation. */
712 rptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
713 rptr
->address
= intern
->r_vaddr
;
714 rptr
->addend
= ecoff_data (abfd
)->gp
;
721 rptr
->howto
= &alpha_howto_table
[intern
->r_type
];
724 /* When writing out a reloc we need to pull some values back out of
725 the addend field into the reloc. This is roughly the reverse of
726 alpha_adjust_reloc_in, except that there are several changes we do
730 alpha_adjust_reloc_out (abfd
, rel
, intern
)
731 bfd
*abfd ATTRIBUTE_UNUSED
;
733 struct internal_reloc
*intern
;
735 switch (intern
->r_type
)
739 intern
->r_size
= rel
->addend
;
742 case ALPHA_R_OP_STORE
:
743 intern
->r_size
= rel
->addend
& 0xff;
744 intern
->r_offset
= (rel
->addend
>> 8) & 0xff;
747 case ALPHA_R_OP_PUSH
:
748 case ALPHA_R_OP_PSUB
:
749 case ALPHA_R_OP_PRSHIFT
:
750 intern
->r_vaddr
= rel
->addend
;
754 intern
->r_vaddr
= rel
->address
;
762 /* The size of the stack for the relocation evaluator. */
763 #define RELOC_STACKSIZE (10)
765 /* Alpha ECOFF relocs have a built in expression evaluator as well as
766 other interdependencies. Rather than use a bunch of special
767 functions and global variables, we use a single routine to do all
768 the relocation for a section. I haven't yet worked out how the
769 assembler is going to handle this. */
772 alpha_ecoff_get_relocated_section_contents (abfd
, link_info
, link_order
,
773 data
, relocatable
, symbols
)
775 struct bfd_link_info
*link_info
;
776 struct bfd_link_order
*link_order
;
778 bfd_boolean relocatable
;
781 bfd
*input_bfd
= link_order
->u
.indirect
.section
->owner
;
782 asection
*input_section
= link_order
->u
.indirect
.section
;
783 long reloc_size
= bfd_get_reloc_upper_bound (input_bfd
, input_section
);
784 arelent
**reloc_vector
= NULL
;
786 bfd
*output_bfd
= relocatable
? abfd
: (bfd
*) NULL
;
789 bfd_boolean gp_undefined
;
790 bfd_vma stack
[RELOC_STACKSIZE
];
795 reloc_vector
= (arelent
**) bfd_malloc ((bfd_size_type
) reloc_size
);
796 if (reloc_vector
== NULL
&& reloc_size
!= 0)
799 sz
= input_section
->rawsize
? input_section
->rawsize
: input_section
->size
;
800 if (! bfd_get_section_contents (input_bfd
, input_section
, data
, 0, sz
))
803 reloc_count
= bfd_canonicalize_reloc (input_bfd
, input_section
,
804 reloc_vector
, symbols
);
807 if (reloc_count
== 0)
808 goto successful_return
;
810 /* Get the GP value for the output BFD. */
811 gp_undefined
= FALSE
;
812 gp
= _bfd_get_gp_value (abfd
);
820 /* Make up a value. */
822 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
825 && (strcmp (sec
->name
, ".sbss") == 0
826 || strcmp (sec
->name
, ".sdata") == 0
827 || strcmp (sec
->name
, ".lit4") == 0
828 || strcmp (sec
->name
, ".lit8") == 0
829 || strcmp (sec
->name
, ".lita") == 0))
833 _bfd_set_gp_value (abfd
, gp
);
837 struct bfd_link_hash_entry
*h
;
839 h
= bfd_link_hash_lookup (link_info
->hash
, "_gp", FALSE
, FALSE
,
841 if (h
== (struct bfd_link_hash_entry
*) NULL
842 || h
->type
!= bfd_link_hash_defined
)
847 + h
->u
.def
.section
->output_section
->vma
848 + h
->u
.def
.section
->output_offset
);
849 _bfd_set_gp_value (abfd
, gp
);
854 for (; *reloc_vector
!= (arelent
*) NULL
; reloc_vector
++)
857 bfd_reloc_status_type r
;
862 switch (rel
->howto
->type
)
865 rel
->address
+= input_section
->output_offset
;
868 case ALPHA_R_REFLONG
:
869 case ALPHA_R_REFQUAD
:
876 && ((*rel
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
) == 0)
878 rel
->address
+= input_section
->output_offset
;
881 r
= bfd_perform_relocation (input_bfd
, rel
, data
, input_section
,
885 case ALPHA_R_GPREL32
:
886 /* This relocation is used in a switch table. It is a 32
887 bit offset from the current GP value. We must adjust it
888 by the different between the original GP value and the
889 current GP value. The original GP value is stored in the
890 addend. We adjust the addend and let
891 bfd_perform_relocation finish the job. */
893 r
= bfd_perform_relocation (input_bfd
, rel
, data
, input_section
,
895 if (r
== bfd_reloc_ok
&& gp_undefined
)
897 r
= bfd_reloc_dangerous
;
898 err
= (char *) _("GP relative relocation used when GP not defined");
902 case ALPHA_R_LITERAL
:
903 /* This is a reference to a literal value, generally
904 (always?) in the .lita section. This is a 16 bit GP
905 relative relocation. Sometimes the subsequent reloc is a
906 LITUSE reloc, which indicates how this reloc is used.
907 This sometimes permits rewriting the two instructions
908 referred to by the LITERAL and the LITUSE into different
909 instructions which do not refer to .lita. This can save
910 a memory reference, and permits removing a value from
911 .lita thus saving GP relative space.
913 We do not these optimizations. To do them we would need
914 to arrange to link the .lita section first, so that by
915 the time we got here we would know the final values to
916 use. This would not be particularly difficult, but it is
917 not currently implemented. */
922 /* I believe that the LITERAL reloc will only apply to a
923 ldq or ldl instruction, so check my assumption. */
924 insn
= bfd_get_32 (input_bfd
, data
+ rel
->address
);
925 BFD_ASSERT (((insn
>> 26) & 0x3f) == 0x29
926 || ((insn
>> 26) & 0x3f) == 0x28);
929 r
= bfd_perform_relocation (input_bfd
, rel
, data
, input_section
,
931 if (r
== bfd_reloc_ok
&& gp_undefined
)
933 r
= bfd_reloc_dangerous
;
935 (char *) _("GP relative relocation used when GP not defined");
941 /* See ALPHA_R_LITERAL above for the uses of this reloc. It
942 does not cause anything to happen, itself. */
943 rel
->address
+= input_section
->output_offset
;
947 /* This marks the ldah of an ldah/lda pair which loads the
948 gp register with the difference of the gp value and the
949 current location. The second of the pair is r_size bytes
950 ahead; it used to be marked with an ALPHA_R_IGNORE reloc,
951 but that no longer happens in OSF/1 3.2. */
953 unsigned long insn1
, insn2
;
956 /* Get the two instructions. */
957 insn1
= bfd_get_32 (input_bfd
, data
+ rel
->address
);
958 insn2
= bfd_get_32 (input_bfd
, data
+ rel
->address
+ rel
->addend
);
960 BFD_ASSERT (((insn1
>> 26) & 0x3f) == 0x09); /* ldah */
961 BFD_ASSERT (((insn2
>> 26) & 0x3f) == 0x08); /* lda */
963 /* Get the existing addend. We must account for the sign
964 extension done by lda and ldah. */
965 addend
= ((insn1
& 0xffff) << 16) + (insn2
& 0xffff);
968 addend
-= 0x80000000;
969 addend
-= 0x80000000;
974 /* The existing addend includes the different between the
975 gp of the input BFD and the address in the input BFD.
976 Subtract this out. */
977 addend
-= (ecoff_data (input_bfd
)->gp
978 - (input_section
->vma
+ rel
->address
));
980 /* Now add in the final gp value, and subtract out the
983 - (input_section
->output_section
->vma
984 + input_section
->output_offset
987 /* Change the instructions, accounting for the sign
988 extension, and write them out. */
991 insn1
= (insn1
& 0xffff0000) | ((addend
>> 16) & 0xffff);
992 insn2
= (insn2
& 0xffff0000) | (addend
& 0xffff);
994 bfd_put_32 (input_bfd
, (bfd_vma
) insn1
, data
+ rel
->address
);
995 bfd_put_32 (input_bfd
, (bfd_vma
) insn2
,
996 data
+ rel
->address
+ rel
->addend
);
998 rel
->address
+= input_section
->output_offset
;
1002 case ALPHA_R_OP_PUSH
:
1003 /* Push a value on the reloc evaluation stack. */
1010 rel
->address
+= input_section
->output_offset
;
1014 /* Figure out the relocation of this symbol. */
1015 symbol
= *rel
->sym_ptr_ptr
;
1017 if (bfd_is_und_section (symbol
->section
))
1018 r
= bfd_reloc_undefined
;
1020 if (bfd_is_com_section (symbol
->section
))
1023 relocation
= symbol
->value
;
1024 relocation
+= symbol
->section
->output_section
->vma
;
1025 relocation
+= symbol
->section
->output_offset
;
1026 relocation
+= rel
->addend
;
1028 if (tos
>= RELOC_STACKSIZE
)
1031 stack
[tos
++] = relocation
;
1035 case ALPHA_R_OP_STORE
:
1036 /* Store a value from the reloc stack into a bitfield. */
1043 rel
->address
+= input_section
->output_offset
;
1050 /* The offset and size for this reloc are encoded into the
1051 addend field by alpha_adjust_reloc_in. */
1052 offset
= (rel
->addend
>> 8) & 0xff;
1053 size
= rel
->addend
& 0xff;
1055 val
= bfd_get_64 (abfd
, data
+ rel
->address
);
1056 val
&=~ (((1 << size
) - 1) << offset
);
1057 val
|= (stack
[--tos
] & ((1 << size
) - 1)) << offset
;
1058 bfd_put_64 (abfd
, val
, data
+ rel
->address
);
1062 case ALPHA_R_OP_PSUB
:
1063 /* Subtract a value from the top of the stack. */
1070 rel
->address
+= input_section
->output_offset
;
1074 /* Figure out the relocation of this symbol. */
1075 symbol
= *rel
->sym_ptr_ptr
;
1077 if (bfd_is_und_section (symbol
->section
))
1078 r
= bfd_reloc_undefined
;
1080 if (bfd_is_com_section (symbol
->section
))
1083 relocation
= symbol
->value
;
1084 relocation
+= symbol
->section
->output_section
->vma
;
1085 relocation
+= symbol
->section
->output_offset
;
1086 relocation
+= rel
->addend
;
1091 stack
[tos
- 1] -= relocation
;
1095 case ALPHA_R_OP_PRSHIFT
:
1096 /* Shift the value on the top of the stack. */
1103 rel
->address
+= input_section
->output_offset
;
1107 /* Figure out the relocation of this symbol. */
1108 symbol
= *rel
->sym_ptr_ptr
;
1110 if (bfd_is_und_section (symbol
->section
))
1111 r
= bfd_reloc_undefined
;
1113 if (bfd_is_com_section (symbol
->section
))
1116 relocation
= symbol
->value
;
1117 relocation
+= symbol
->section
->output_section
->vma
;
1118 relocation
+= symbol
->section
->output_offset
;
1119 relocation
+= rel
->addend
;
1124 stack
[tos
- 1] >>= relocation
;
1128 case ALPHA_R_GPVALUE
:
1129 /* I really don't know if this does the right thing. */
1131 gp_undefined
= FALSE
;
1140 asection
*os
= input_section
->output_section
;
1142 /* A partial link, so keep the relocs. */
1143 os
->orelocation
[os
->reloc_count
] = rel
;
1147 if (r
!= bfd_reloc_ok
)
1151 case bfd_reloc_undefined
:
1152 if (! ((*link_info
->callbacks
->undefined_symbol
)
1153 (link_info
, bfd_asymbol_name (*rel
->sym_ptr_ptr
),
1154 input_bfd
, input_section
, rel
->address
, TRUE
)))
1157 case bfd_reloc_dangerous
:
1158 if (! ((*link_info
->callbacks
->reloc_dangerous
)
1159 (link_info
, err
, input_bfd
, input_section
,
1163 case bfd_reloc_overflow
:
1164 if (! ((*link_info
->callbacks
->reloc_overflow
)
1166 bfd_asymbol_name (*rel
->sym_ptr_ptr
),
1167 rel
->howto
->name
, rel
->addend
, input_bfd
,
1168 input_section
, rel
->address
)))
1171 case bfd_reloc_outofrange
:
1183 if (reloc_vector
!= NULL
)
1184 free (reloc_vector
);
1188 if (reloc_vector
!= NULL
)
1189 free (reloc_vector
);
1193 /* Get the howto structure for a generic reloc type. */
1195 static reloc_howto_type
*
1196 alpha_bfd_reloc_type_lookup (abfd
, code
)
1197 bfd
*abfd ATTRIBUTE_UNUSED
;
1198 bfd_reloc_code_real_type code
;
1205 alpha_type
= ALPHA_R_REFLONG
;
1208 case BFD_RELOC_CTOR
:
1209 alpha_type
= ALPHA_R_REFQUAD
;
1211 case BFD_RELOC_GPREL32
:
1212 alpha_type
= ALPHA_R_GPREL32
;
1214 case BFD_RELOC_ALPHA_LITERAL
:
1215 alpha_type
= ALPHA_R_LITERAL
;
1217 case BFD_RELOC_ALPHA_LITUSE
:
1218 alpha_type
= ALPHA_R_LITUSE
;
1220 case BFD_RELOC_ALPHA_GPDISP_HI16
:
1221 alpha_type
= ALPHA_R_GPDISP
;
1223 case BFD_RELOC_ALPHA_GPDISP_LO16
:
1224 alpha_type
= ALPHA_R_IGNORE
;
1226 case BFD_RELOC_23_PCREL_S2
:
1227 alpha_type
= ALPHA_R_BRADDR
;
1229 case BFD_RELOC_ALPHA_HINT
:
1230 alpha_type
= ALPHA_R_HINT
;
1232 case BFD_RELOC_16_PCREL
:
1233 alpha_type
= ALPHA_R_SREL16
;
1235 case BFD_RELOC_32_PCREL
:
1236 alpha_type
= ALPHA_R_SREL32
;
1238 case BFD_RELOC_64_PCREL
:
1239 alpha_type
= ALPHA_R_SREL64
;
1242 return (reloc_howto_type
*) NULL
;
1245 return &alpha_howto_table
[alpha_type
];
1248 static reloc_howto_type
*
1249 alpha_bfd_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
1255 i
< sizeof (alpha_howto_table
) / sizeof (alpha_howto_table
[0]);
1257 if (alpha_howto_table
[i
].name
!= NULL
1258 && strcasecmp (alpha_howto_table
[i
].name
, r_name
) == 0)
1259 return &alpha_howto_table
[i
];
1264 /* A helper routine for alpha_relocate_section which converts an
1265 external reloc when generating relocatable output. Returns the
1266 relocation amount. */
1269 alpha_convert_external_reloc (output_bfd
, info
, input_bfd
, ext_rel
, h
)
1270 bfd
*output_bfd ATTRIBUTE_UNUSED
;
1271 struct bfd_link_info
*info
;
1273 struct external_reloc
*ext_rel
;
1274 struct ecoff_link_hash_entry
*h
;
1276 unsigned long r_symndx
;
1279 BFD_ASSERT (info
->relocatable
);
1281 if (h
->root
.type
== bfd_link_hash_defined
1282 || h
->root
.type
== bfd_link_hash_defweak
)
1287 /* This symbol is defined in the output. Convert the reloc from
1288 being against the symbol to being against the section. */
1290 /* Clear the r_extern bit. */
1291 ext_rel
->r_bits
[1] &=~ RELOC_BITS1_EXTERN_LITTLE
;
1293 /* Compute a new r_symndx value. */
1294 hsec
= h
->root
.u
.def
.section
;
1295 name
= bfd_get_section_name (output_bfd
, hsec
->output_section
);
1297 r_symndx
= (unsigned long) -1;
1301 if (strcmp (name
, "*ABS*") == 0)
1302 r_symndx
= RELOC_SECTION_ABS
;
1305 if (strcmp (name
, ".bss") == 0)
1306 r_symndx
= RELOC_SECTION_BSS
;
1309 if (strcmp (name
, ".data") == 0)
1310 r_symndx
= RELOC_SECTION_DATA
;
1313 if (strcmp (name
, ".fini") == 0)
1314 r_symndx
= RELOC_SECTION_FINI
;
1317 if (strcmp (name
, ".init") == 0)
1318 r_symndx
= RELOC_SECTION_INIT
;
1321 if (strcmp (name
, ".lita") == 0)
1322 r_symndx
= RELOC_SECTION_LITA
;
1323 else if (strcmp (name
, ".lit8") == 0)
1324 r_symndx
= RELOC_SECTION_LIT8
;
1325 else if (strcmp (name
, ".lit4") == 0)
1326 r_symndx
= RELOC_SECTION_LIT4
;
1329 if (strcmp (name
, ".pdata") == 0)
1330 r_symndx
= RELOC_SECTION_PDATA
;
1333 if (strcmp (name
, ".rdata") == 0)
1334 r_symndx
= RELOC_SECTION_RDATA
;
1335 else if (strcmp (name
, ".rconst") == 0)
1336 r_symndx
= RELOC_SECTION_RCONST
;
1339 if (strcmp (name
, ".sdata") == 0)
1340 r_symndx
= RELOC_SECTION_SDATA
;
1341 else if (strcmp (name
, ".sbss") == 0)
1342 r_symndx
= RELOC_SECTION_SBSS
;
1345 if (strcmp (name
, ".text") == 0)
1346 r_symndx
= RELOC_SECTION_TEXT
;
1349 if (strcmp (name
, ".xdata") == 0)
1350 r_symndx
= RELOC_SECTION_XDATA
;
1354 if (r_symndx
== (unsigned long) -1)
1357 /* Add the section VMA and the symbol value. */
1358 relocation
= (h
->root
.u
.def
.value
1359 + hsec
->output_section
->vma
1360 + hsec
->output_offset
);
1364 /* Change the symndx value to the right one for
1367 if (r_symndx
== (unsigned long) -1)
1369 /* Caller must give an error. */
1375 /* Write out the new r_symndx value. */
1376 H_PUT_32 (input_bfd
, r_symndx
, ext_rel
->r_symndx
);
1381 /* Relocate a section while linking an Alpha ECOFF file. This is
1382 quite similar to get_relocated_section_contents. Perhaps they
1383 could be combined somehow. */
1386 alpha_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
1387 contents
, external_relocs
)
1389 struct bfd_link_info
*info
;
1391 asection
*input_section
;
1393 PTR external_relocs
;
1395 asection
**symndx_to_section
, *lita_sec
;
1396 struct ecoff_link_hash_entry
**sym_hashes
;
1398 bfd_boolean gp_undefined
;
1399 bfd_vma stack
[RELOC_STACKSIZE
];
1401 struct external_reloc
*ext_rel
;
1402 struct external_reloc
*ext_rel_end
;
1405 /* We keep a table mapping the symndx found in an internal reloc to
1406 the appropriate section. This is faster than looking up the
1407 section by name each time. */
1408 symndx_to_section
= ecoff_data (input_bfd
)->symndx_to_section
;
1409 if (symndx_to_section
== (asection
**) NULL
)
1411 amt
= NUM_RELOC_SECTIONS
* sizeof (asection
*);
1412 symndx_to_section
= (asection
**) bfd_alloc (input_bfd
, amt
);
1413 if (!symndx_to_section
)
1416 symndx_to_section
[RELOC_SECTION_NONE
] = NULL
;
1417 symndx_to_section
[RELOC_SECTION_TEXT
] =
1418 bfd_get_section_by_name (input_bfd
, ".text");
1419 symndx_to_section
[RELOC_SECTION_RDATA
] =
1420 bfd_get_section_by_name (input_bfd
, ".rdata");
1421 symndx_to_section
[RELOC_SECTION_DATA
] =
1422 bfd_get_section_by_name (input_bfd
, ".data");
1423 symndx_to_section
[RELOC_SECTION_SDATA
] =
1424 bfd_get_section_by_name (input_bfd
, ".sdata");
1425 symndx_to_section
[RELOC_SECTION_SBSS
] =
1426 bfd_get_section_by_name (input_bfd
, ".sbss");
1427 symndx_to_section
[RELOC_SECTION_BSS
] =
1428 bfd_get_section_by_name (input_bfd
, ".bss");
1429 symndx_to_section
[RELOC_SECTION_INIT
] =
1430 bfd_get_section_by_name (input_bfd
, ".init");
1431 symndx_to_section
[RELOC_SECTION_LIT8
] =
1432 bfd_get_section_by_name (input_bfd
, ".lit8");
1433 symndx_to_section
[RELOC_SECTION_LIT4
] =
1434 bfd_get_section_by_name (input_bfd
, ".lit4");
1435 symndx_to_section
[RELOC_SECTION_XDATA
] =
1436 bfd_get_section_by_name (input_bfd
, ".xdata");
1437 symndx_to_section
[RELOC_SECTION_PDATA
] =
1438 bfd_get_section_by_name (input_bfd
, ".pdata");
1439 symndx_to_section
[RELOC_SECTION_FINI
] =
1440 bfd_get_section_by_name (input_bfd
, ".fini");
1441 symndx_to_section
[RELOC_SECTION_LITA
] =
1442 bfd_get_section_by_name (input_bfd
, ".lita");
1443 symndx_to_section
[RELOC_SECTION_ABS
] = bfd_abs_section_ptr
;
1444 symndx_to_section
[RELOC_SECTION_RCONST
] =
1445 bfd_get_section_by_name (input_bfd
, ".rconst");
1447 ecoff_data (input_bfd
)->symndx_to_section
= symndx_to_section
;
1450 sym_hashes
= ecoff_data (input_bfd
)->sym_hashes
;
1452 /* On the Alpha, the .lita section must be addressable by the global
1453 pointer. To support large programs, we need to allow multiple
1454 global pointers. This works as long as each input .lita section
1455 is <64KB big. This implies that when producing relocatable
1456 output, the .lita section is limited to 64KB. . */
1458 lita_sec
= symndx_to_section
[RELOC_SECTION_LITA
];
1459 gp
= _bfd_get_gp_value (output_bfd
);
1460 if (! info
->relocatable
&& lita_sec
!= NULL
)
1462 struct ecoff_section_tdata
*lita_sec_data
;
1464 /* Make sure we have a section data structure to which we can
1465 hang on to the gp value we pick for the section. */
1466 lita_sec_data
= ecoff_section_data (input_bfd
, lita_sec
);
1467 if (lita_sec_data
== NULL
)
1469 amt
= sizeof (struct ecoff_section_tdata
);
1470 lita_sec_data
= ((struct ecoff_section_tdata
*)
1471 bfd_zalloc (input_bfd
, amt
));
1472 lita_sec
->used_by_bfd
= lita_sec_data
;
1475 if (lita_sec_data
->gp
!= 0)
1477 /* If we already assigned a gp to this section, we better
1478 stick with that value. */
1479 gp
= lita_sec_data
->gp
;
1484 bfd_size_type lita_size
;
1486 lita_vma
= lita_sec
->output_offset
+ lita_sec
->output_section
->vma
;
1487 lita_size
= lita_sec
->size
;
1490 || lita_vma
< gp
- 0x8000
1491 || lita_vma
+ lita_size
>= gp
+ 0x8000)
1493 /* Either gp hasn't been set at all or the current gp
1494 cannot address this .lita section. In both cases we
1495 reset the gp to point into the "middle" of the
1496 current input .lita section. */
1497 if (gp
&& !ecoff_data (output_bfd
)->issued_multiple_gp_warning
)
1499 (*info
->callbacks
->warning
) (info
,
1500 _("using multiple gp values"),
1501 (char *) NULL
, output_bfd
,
1502 (asection
*) NULL
, (bfd_vma
) 0);
1503 ecoff_data (output_bfd
)->issued_multiple_gp_warning
= TRUE
;
1505 if (lita_vma
< gp
- 0x8000)
1506 gp
= lita_vma
+ lita_size
- 0x8000;
1508 gp
= lita_vma
+ 0x8000;
1512 lita_sec_data
->gp
= gp
;
1515 _bfd_set_gp_value (output_bfd
, gp
);
1518 gp_undefined
= (gp
== 0);
1520 BFD_ASSERT (bfd_header_little_endian (output_bfd
));
1521 BFD_ASSERT (bfd_header_little_endian (input_bfd
));
1523 ext_rel
= (struct external_reloc
*) external_relocs
;
1524 ext_rel_end
= ext_rel
+ input_section
->reloc_count
;
1525 for (; ext_rel
< ext_rel_end
; ext_rel
++)
1528 unsigned long r_symndx
;
1533 bfd_boolean relocatep
;
1534 bfd_boolean adjust_addrp
;
1535 bfd_boolean gp_usedp
;
1538 r_vaddr
= H_GET_64 (input_bfd
, ext_rel
->r_vaddr
);
1539 r_symndx
= H_GET_32 (input_bfd
, ext_rel
->r_symndx
);
1541 r_type
= ((ext_rel
->r_bits
[0] & RELOC_BITS0_TYPE_LITTLE
)
1542 >> RELOC_BITS0_TYPE_SH_LITTLE
);
1543 r_extern
= (ext_rel
->r_bits
[1] & RELOC_BITS1_EXTERN_LITTLE
) != 0;
1544 r_offset
= ((ext_rel
->r_bits
[1] & RELOC_BITS1_OFFSET_LITTLE
)
1545 >> RELOC_BITS1_OFFSET_SH_LITTLE
);
1546 /* Ignored the reserved bits. */
1547 r_size
= ((ext_rel
->r_bits
[3] & RELOC_BITS3_SIZE_LITTLE
)
1548 >> RELOC_BITS3_SIZE_SH_LITTLE
);
1551 adjust_addrp
= TRUE
;
1557 case ALPHA_R_GPRELHIGH
:
1558 (*_bfd_error_handler
)
1559 (_("%B: unsupported relocation: ALPHA_R_GPRELHIGH"),
1561 bfd_set_error (bfd_error_bad_value
);
1564 case ALPHA_R_GPRELLOW
:
1565 (*_bfd_error_handler
)
1566 (_("%B: unsupported relocation: ALPHA_R_GPRELLOW"),
1568 bfd_set_error (bfd_error_bad_value
);
1572 (*_bfd_error_handler
)
1573 (_("%B: unknown relocation type %d"),
1574 input_bfd
, (int) r_type
);
1575 bfd_set_error (bfd_error_bad_value
);
1578 case ALPHA_R_IGNORE
:
1579 /* This reloc appears after a GPDISP reloc. On earlier
1580 versions of OSF/1, It marked the position of the second
1581 instruction to be altered by the GPDISP reloc, but it is
1582 not otherwise used for anything. For some reason, the
1583 address of the relocation does not appear to include the
1584 section VMA, unlike the other relocation types. */
1585 if (info
->relocatable
)
1586 H_PUT_64 (input_bfd
, input_section
->output_offset
+ r_vaddr
,
1588 adjust_addrp
= FALSE
;
1591 case ALPHA_R_REFLONG
:
1592 case ALPHA_R_REFQUAD
:
1597 case ALPHA_R_BRADDR
:
1598 case ALPHA_R_SREL16
:
1599 case ALPHA_R_SREL32
:
1600 case ALPHA_R_SREL64
:
1602 addend
+= - (r_vaddr
+ 4);
1606 case ALPHA_R_GPREL32
:
1607 /* This relocation is used in a switch table. It is a 32
1608 bit offset from the current GP value. We must adjust it
1609 by the different between the original GP value and the
1610 current GP value. */
1612 addend
= ecoff_data (input_bfd
)->gp
- gp
;
1616 case ALPHA_R_LITERAL
:
1617 /* This is a reference to a literal value, generally
1618 (always?) in the .lita section. This is a 16 bit GP
1619 relative relocation. Sometimes the subsequent reloc is a
1620 LITUSE reloc, which indicates how this reloc is used.
1621 This sometimes permits rewriting the two instructions
1622 referred to by the LITERAL and the LITUSE into different
1623 instructions which do not refer to .lita. This can save
1624 a memory reference, and permits removing a value from
1625 .lita thus saving GP relative space.
1627 We do not these optimizations. To do them we would need
1628 to arrange to link the .lita section first, so that by
1629 the time we got here we would know the final values to
1630 use. This would not be particularly difficult, but it is
1631 not currently implemented. */
1633 /* I believe that the LITERAL reloc will only apply to a ldq
1634 or ldl instruction, so check my assumption. */
1638 insn
= bfd_get_32 (input_bfd
,
1639 contents
+ r_vaddr
- input_section
->vma
);
1640 BFD_ASSERT (((insn
>> 26) & 0x3f) == 0x29
1641 || ((insn
>> 26) & 0x3f) == 0x28);
1645 addend
= ecoff_data (input_bfd
)->gp
- gp
;
1649 case ALPHA_R_LITUSE
:
1650 /* See ALPHA_R_LITERAL above for the uses of this reloc. It
1651 does not cause anything to happen, itself. */
1654 case ALPHA_R_GPDISP
:
1655 /* This marks the ldah of an ldah/lda pair which loads the
1656 gp register with the difference of the gp value and the
1657 current location. The second of the pair is r_symndx
1658 bytes ahead. It used to be marked with an ALPHA_R_IGNORE
1659 reloc, but OSF/1 3.2 no longer does that. */
1661 unsigned long insn1
, insn2
;
1663 /* Get the two instructions. */
1664 insn1
= bfd_get_32 (input_bfd
,
1665 contents
+ r_vaddr
- input_section
->vma
);
1666 insn2
= bfd_get_32 (input_bfd
,
1669 - input_section
->vma
1672 BFD_ASSERT (((insn1
>> 26) & 0x3f) == 0x09); /* ldah */
1673 BFD_ASSERT (((insn2
>> 26) & 0x3f) == 0x08); /* lda */
1675 /* Get the existing addend. We must account for the sign
1676 extension done by lda and ldah. */
1677 addend
= ((insn1
& 0xffff) << 16) + (insn2
& 0xffff);
1680 /* This is addend -= 0x100000000 without causing an
1681 integer overflow on a 32 bit host. */
1682 addend
-= 0x80000000;
1683 addend
-= 0x80000000;
1688 /* The existing addend includes the difference between the
1689 gp of the input BFD and the address in the input BFD.
1690 We want to change this to the difference between the
1691 final GP and the final address. */
1693 - ecoff_data (input_bfd
)->gp
1694 + input_section
->vma
1695 - (input_section
->output_section
->vma
1696 + input_section
->output_offset
));
1698 /* Change the instructions, accounting for the sign
1699 extension, and write them out. */
1700 if (addend
& 0x8000)
1702 insn1
= (insn1
& 0xffff0000) | ((addend
>> 16) & 0xffff);
1703 insn2
= (insn2
& 0xffff0000) | (addend
& 0xffff);
1705 bfd_put_32 (input_bfd
, (bfd_vma
) insn1
,
1706 contents
+ r_vaddr
- input_section
->vma
);
1707 bfd_put_32 (input_bfd
, (bfd_vma
) insn2
,
1708 contents
+ r_vaddr
- input_section
->vma
+ r_symndx
);
1714 case ALPHA_R_OP_PUSH
:
1715 case ALPHA_R_OP_PSUB
:
1716 case ALPHA_R_OP_PRSHIFT
:
1717 /* Manipulate values on the reloc evaluation stack. The
1718 r_vaddr field is not an address in input_section, it is
1719 the current value (including any addend) of the object
1725 s
= symndx_to_section
[r_symndx
];
1726 if (s
== (asection
*) NULL
)
1728 addend
= s
->output_section
->vma
+ s
->output_offset
- s
->vma
;
1732 struct ecoff_link_hash_entry
*h
;
1734 h
= sym_hashes
[r_symndx
];
1735 if (h
== (struct ecoff_link_hash_entry
*) NULL
)
1738 if (! info
->relocatable
)
1740 if (h
->root
.type
== bfd_link_hash_defined
1741 || h
->root
.type
== bfd_link_hash_defweak
)
1742 addend
= (h
->root
.u
.def
.value
1743 + h
->root
.u
.def
.section
->output_section
->vma
1744 + h
->root
.u
.def
.section
->output_offset
);
1747 /* Note that we pass the address as 0, since we
1748 do not have a meaningful number for the
1749 location within the section that is being
1751 if (! ((*info
->callbacks
->undefined_symbol
)
1752 (info
, h
->root
.root
.string
, input_bfd
,
1753 input_section
, (bfd_vma
) 0, TRUE
)))
1760 if (h
->root
.type
!= bfd_link_hash_defined
1761 && h
->root
.type
!= bfd_link_hash_defweak
1764 /* This symbol is not being written out. Pass
1765 the address as 0, as with undefined_symbol,
1767 if (! ((*info
->callbacks
->unattached_reloc
)
1768 (info
, h
->root
.root
.string
, input_bfd
,
1769 input_section
, (bfd_vma
) 0)))
1773 addend
= alpha_convert_external_reloc (output_bfd
, info
,
1781 if (info
->relocatable
)
1783 /* Adjust r_vaddr by the addend. */
1784 H_PUT_64 (input_bfd
, addend
, ext_rel
->r_vaddr
);
1790 case ALPHA_R_OP_PUSH
:
1791 if (tos
>= RELOC_STACKSIZE
)
1793 stack
[tos
++] = addend
;
1796 case ALPHA_R_OP_PSUB
:
1799 stack
[tos
- 1] -= addend
;
1802 case ALPHA_R_OP_PRSHIFT
:
1805 stack
[tos
- 1] >>= addend
;
1810 adjust_addrp
= FALSE
;
1813 case ALPHA_R_OP_STORE
:
1814 /* Store a value from the reloc stack into a bitfield. If
1815 we are generating relocatable output, all we do is
1816 adjust the address of the reloc. */
1817 if (! info
->relocatable
)
1825 /* Get the relocation mask. The separate steps and the
1826 casts to bfd_vma are attempts to avoid a bug in the
1827 Alpha OSF 1.3 C compiler. See reloc.c for more
1830 mask
<<= (bfd_vma
) r_size
;
1833 /* FIXME: I don't know what kind of overflow checking,
1834 if any, should be done here. */
1835 val
= bfd_get_64 (input_bfd
,
1836 contents
+ r_vaddr
- input_section
->vma
);
1837 val
&=~ mask
<< (bfd_vma
) r_offset
;
1838 val
|= (stack
[--tos
] & mask
) << (bfd_vma
) r_offset
;
1839 bfd_put_64 (input_bfd
, val
,
1840 contents
+ r_vaddr
- input_section
->vma
);
1844 case ALPHA_R_GPVALUE
:
1845 /* I really don't know if this does the right thing. */
1846 gp
= ecoff_data (input_bfd
)->gp
+ r_symndx
;
1847 gp_undefined
= FALSE
;
1853 reloc_howto_type
*howto
;
1854 struct ecoff_link_hash_entry
*h
= NULL
;
1857 bfd_reloc_status_type r
;
1859 /* Perform a relocation. */
1861 howto
= &alpha_howto_table
[r_type
];
1865 h
= sym_hashes
[r_symndx
];
1866 /* If h is NULL, that means that there is a reloc
1867 against an external symbol which we thought was just
1868 a debugging symbol. This should not happen. */
1869 if (h
== (struct ecoff_link_hash_entry
*) NULL
)
1874 if (r_symndx
>= NUM_RELOC_SECTIONS
)
1877 s
= symndx_to_section
[r_symndx
];
1879 if (s
== (asection
*) NULL
)
1883 if (info
->relocatable
)
1885 /* We are generating relocatable output, and must
1886 convert the existing reloc. */
1889 if (h
->root
.type
!= bfd_link_hash_defined
1890 && h
->root
.type
!= bfd_link_hash_defweak
1893 /* This symbol is not being written out. */
1894 if (! ((*info
->callbacks
->unattached_reloc
)
1895 (info
, h
->root
.root
.string
, input_bfd
,
1896 input_section
, r_vaddr
- input_section
->vma
)))
1900 relocation
= alpha_convert_external_reloc (output_bfd
,
1908 /* This is a relocation against a section. Adjust
1909 the value by the amount the section moved. */
1910 relocation
= (s
->output_section
->vma
1915 /* If this is PC relative, the existing object file
1916 appears to already have the reloc worked out. We
1917 must subtract out the old value and add in the new
1919 if (howto
->pc_relative
)
1920 relocation
-= (input_section
->output_section
->vma
1921 + input_section
->output_offset
1922 - input_section
->vma
);
1924 /* Put in any addend. */
1925 relocation
+= addend
;
1927 /* Adjust the contents. */
1928 r
= _bfd_relocate_contents (howto
, input_bfd
, relocation
,
1931 - input_section
->vma
));
1935 /* We are producing a final executable. */
1938 /* This is a reloc against a symbol. */
1939 if (h
->root
.type
== bfd_link_hash_defined
1940 || h
->root
.type
== bfd_link_hash_defweak
)
1944 hsec
= h
->root
.u
.def
.section
;
1945 relocation
= (h
->root
.u
.def
.value
1946 + hsec
->output_section
->vma
1947 + hsec
->output_offset
);
1951 if (! ((*info
->callbacks
->undefined_symbol
)
1952 (info
, h
->root
.root
.string
, input_bfd
,
1954 r_vaddr
- input_section
->vma
, TRUE
)))
1961 /* This is a reloc against a section. */
1962 relocation
= (s
->output_section
->vma
1966 /* Adjust a PC relative relocation by removing the
1967 reference to the original source section. */
1968 if (howto
->pc_relative
)
1969 relocation
+= input_section
->vma
;
1972 r
= _bfd_final_link_relocate (howto
,
1976 r_vaddr
- input_section
->vma
,
1981 if (r
!= bfd_reloc_ok
)
1986 case bfd_reloc_outofrange
:
1988 case bfd_reloc_overflow
:
1993 name
= sym_hashes
[r_symndx
]->root
.root
.string
;
1995 name
= bfd_section_name (input_bfd
,
1996 symndx_to_section
[r_symndx
]);
1997 if (! ((*info
->callbacks
->reloc_overflow
)
1999 alpha_howto_table
[r_type
].name
,
2000 (bfd_vma
) 0, input_bfd
, input_section
,
2001 r_vaddr
- input_section
->vma
)))
2009 if (info
->relocatable
&& adjust_addrp
)
2011 /* Change the address of the relocation. */
2012 H_PUT_64 (input_bfd
,
2013 (input_section
->output_section
->vma
2014 + input_section
->output_offset
2015 - input_section
->vma
2020 if (gp_usedp
&& gp_undefined
)
2022 if (! ((*info
->callbacks
->reloc_dangerous
)
2023 (info
, _("GP relative relocation used when GP not defined"),
2024 input_bfd
, input_section
, r_vaddr
- input_section
->vma
)))
2026 /* Only give the error once per link. */
2028 _bfd_set_gp_value (output_bfd
, gp
);
2029 gp_undefined
= FALSE
;
2039 /* Do final adjustments to the filehdr and the aouthdr. This routine
2040 sets the dynamic bits in the file header. */
2043 alpha_adjust_headers (abfd
, fhdr
, ahdr
)
2045 struct internal_filehdr
*fhdr
;
2046 struct internal_aouthdr
*ahdr ATTRIBUTE_UNUSED
;
2048 if ((abfd
->flags
& (DYNAMIC
| EXEC_P
)) == (DYNAMIC
| EXEC_P
))
2049 fhdr
->f_flags
|= F_ALPHA_CALL_SHARED
;
2050 else if ((abfd
->flags
& DYNAMIC
) != 0)
2051 fhdr
->f_flags
|= F_ALPHA_SHARABLE
;
2055 /* Archive handling. In OSF/1 (or Digital Unix) v3.2, Digital
2056 introduced archive packing, in which the elements in an archive are
2057 optionally compressed using a simple dictionary scheme. We know
2058 how to read such archives, but we don't write them. */
2060 #define alpha_ecoff_slurp_armap _bfd_ecoff_slurp_armap
2061 #define alpha_ecoff_slurp_extended_name_table \
2062 _bfd_ecoff_slurp_extended_name_table
2063 #define alpha_ecoff_construct_extended_name_table \
2064 _bfd_ecoff_construct_extended_name_table
2065 #define alpha_ecoff_truncate_arname _bfd_ecoff_truncate_arname
2066 #define alpha_ecoff_write_armap _bfd_ecoff_write_armap
2067 #define alpha_ecoff_generic_stat_arch_elt _bfd_ecoff_generic_stat_arch_elt
2068 #define alpha_ecoff_update_armap_timestamp _bfd_ecoff_update_armap_timestamp
2070 /* A compressed file uses this instead of ARFMAG. */
2072 #define ARFZMAG "Z\012"
2074 /* Read an archive header. This is like the standard routine, but it
2075 also accepts ARFZMAG. */
2078 alpha_ecoff_read_ar_hdr (abfd
)
2081 struct areltdata
*ret
;
2084 ret
= (struct areltdata
*) _bfd_generic_read_ar_hdr_mag (abfd
, ARFZMAG
);
2088 h
= (struct ar_hdr
*) ret
->arch_header
;
2089 if (strncmp (h
->ar_fmag
, ARFZMAG
, 2) == 0)
2093 /* This is a compressed file. We must set the size correctly.
2094 The size is the eight bytes after the dummy file header. */
2095 if (bfd_seek (abfd
, (file_ptr
) FILHSZ
, SEEK_CUR
) != 0
2096 || bfd_bread (ab
, (bfd_size_type
) 8, abfd
) != 8
2097 || bfd_seek (abfd
, (file_ptr
) (- (FILHSZ
+ 8)), SEEK_CUR
) != 0)
2100 ret
->parsed_size
= H_GET_64 (abfd
, ab
);
2106 /* Get an archive element at a specified file position. This is where
2107 we uncompress the archive element if necessary. */
2110 alpha_ecoff_get_elt_at_filepos (archive
, filepos
)
2115 struct areltdata
*tdata
;
2120 struct bfd_in_memory
*bim
;
2122 nbfd
= _bfd_get_elt_at_filepos (archive
, filepos
);
2126 if ((nbfd
->flags
& BFD_IN_MEMORY
) != 0)
2128 /* We have already expanded this BFD. */
2132 tdata
= (struct areltdata
*) nbfd
->arelt_data
;
2133 hdr
= (struct ar_hdr
*) tdata
->arch_header
;
2134 if (strncmp (hdr
->ar_fmag
, ARFZMAG
, 2) != 0)
2137 /* We must uncompress this element. We do this by copying it into a
2138 memory buffer, and making bfd_bread and bfd_seek use that buffer.
2139 This can use a lot of memory, but it's simpler than getting a
2140 temporary file, making that work with the file descriptor caching
2141 code, and making sure that it is deleted at all appropriate
2142 times. It can be changed if it ever becomes important. */
2144 /* The compressed file starts with a dummy ECOFF file header. */
2145 if (bfd_seek (nbfd
, (file_ptr
) FILHSZ
, SEEK_SET
) != 0)
2148 /* The next eight bytes are the real file size. */
2149 if (bfd_bread (ab
, (bfd_size_type
) 8, nbfd
) != 8)
2151 size
= H_GET_64 (nbfd
, ab
);
2158 bfd_byte dict
[4096];
2162 buf
= (bfd_byte
*) bfd_alloc (nbfd
, size
);
2169 /* I don't know what the next eight bytes are for. */
2170 if (bfd_bread (ab
, (bfd_size_type
) 8, nbfd
) != 8)
2173 /* This is the uncompression algorithm. It's a simple
2174 dictionary based scheme in which each character is predicted
2175 by a hash of the previous three characters. A control byte
2176 indicates whether the character is predicted or whether it
2177 appears in the input stream; each control byte manages the
2178 next eight bytes in the output stream. */
2179 memset (dict
, 0, sizeof dict
);
2181 while (bfd_bread (&b
, (bfd_size_type
) 1, nbfd
) == 1)
2185 for (i
= 0; i
< 8; i
++, b
>>= 1)
2193 if (! bfd_bread (&n
, (bfd_size_type
) 1, nbfd
))
2206 h
&= sizeof dict
- 1;
2214 /* Now the uncompressed file contents are in buf. */
2215 bim
= ((struct bfd_in_memory
*)
2216 bfd_alloc (nbfd
, (bfd_size_type
) sizeof (struct bfd_in_memory
)));
2222 nbfd
->mtime_set
= TRUE
;
2223 nbfd
->mtime
= strtol (hdr
->ar_date
, (char **) NULL
, 10);
2225 nbfd
->flags
|= BFD_IN_MEMORY
;
2226 nbfd
->iostream
= (PTR
) bim
;
2227 BFD_ASSERT (! nbfd
->cacheable
);
2237 /* Open the next archived file. */
2240 alpha_ecoff_openr_next_archived_file (archive
, last_file
)
2246 if (last_file
== NULL
)
2247 filestart
= bfd_ardata (archive
)->first_file_filepos
;
2250 struct areltdata
*t
;
2254 /* We can't use arelt_size here, because that uses parsed_size,
2255 which is the uncompressed size. We need the compressed size. */
2256 t
= (struct areltdata
*) last_file
->arelt_data
;
2257 h
= (struct ar_hdr
*) t
->arch_header
;
2258 size
= strtol (h
->ar_size
, (char **) NULL
, 10);
2260 /* Pad to an even boundary...
2261 Note that last_file->origin can be odd in the case of
2262 BSD-4.4-style element with a long odd size. */
2263 filestart
= last_file
->origin
+ size
;
2264 filestart
+= filestart
% 2;
2267 return alpha_ecoff_get_elt_at_filepos (archive
, filestart
);
2270 /* Open the archive file given an index into the armap. */
2273 alpha_ecoff_get_elt_at_index (abfd
, index
)
2279 entry
= bfd_ardata (abfd
)->symdefs
+ index
;
2280 return alpha_ecoff_get_elt_at_filepos (abfd
, entry
->file_offset
);
2283 /* This is the ECOFF backend structure. The backend field of the
2284 target vector points to this. */
2286 static const struct ecoff_backend_data alpha_ecoff_backend_data
=
2288 /* COFF backend structure. */
2290 (void (*) PARAMS ((bfd
*,PTR
,int,int,int,int,PTR
))) bfd_void
, /* aux_in */
2291 (void (*) PARAMS ((bfd
*,PTR
,PTR
))) bfd_void
, /* sym_in */
2292 (void (*) PARAMS ((bfd
*,PTR
,PTR
))) bfd_void
, /* lineno_in */
2293 (unsigned (*) PARAMS ((bfd
*,PTR
,int,int,int,int,PTR
)))bfd_void
,/*aux_out*/
2294 (unsigned (*) PARAMS ((bfd
*,PTR
,PTR
))) bfd_void
, /* sym_out */
2295 (unsigned (*) PARAMS ((bfd
*,PTR
,PTR
))) bfd_void
, /* lineno_out */
2296 (unsigned (*) PARAMS ((bfd
*,PTR
,PTR
))) bfd_void
, /* reloc_out */
2297 alpha_ecoff_swap_filehdr_out
, alpha_ecoff_swap_aouthdr_out
,
2298 alpha_ecoff_swap_scnhdr_out
,
2299 FILHSZ
, AOUTSZ
, SCNHSZ
, 0, 0, 0, 0, FILNMLEN
, TRUE
, FALSE
, 4, FALSE
, 2,
2300 alpha_ecoff_swap_filehdr_in
, alpha_ecoff_swap_aouthdr_in
,
2301 alpha_ecoff_swap_scnhdr_in
, NULL
,
2302 alpha_ecoff_bad_format_hook
, _bfd_ecoff_set_arch_mach_hook
,
2303 alpha_ecoff_mkobject_hook
, _bfd_ecoff_styp_to_sec_flags
,
2304 _bfd_ecoff_set_alignment_hook
, _bfd_ecoff_slurp_symbol_table
,
2305 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
2308 /* Supported architecture. */
2310 /* Initial portion of armap string. */
2312 /* The page boundary used to align sections in a demand-paged
2313 executable file. E.g., 0x1000. */
2315 /* TRUE if the .rdata section is part of the text segment, as on the
2316 Alpha. FALSE if .rdata is part of the data segment, as on the
2319 /* Bitsize of constructor entries. */
2321 /* Reloc to use for constructor entries. */
2322 &alpha_howto_table
[ALPHA_R_REFQUAD
],
2324 /* Symbol table magic number. */
2326 /* Alignment of debugging information. E.g., 4. */
2328 /* Sizes of external symbolic information. */
2329 sizeof (struct hdr_ext
),
2330 sizeof (struct dnr_ext
),
2331 sizeof (struct pdr_ext
),
2332 sizeof (struct sym_ext
),
2333 sizeof (struct opt_ext
),
2334 sizeof (struct fdr_ext
),
2335 sizeof (struct rfd_ext
),
2336 sizeof (struct ext_ext
),
2337 /* Functions to swap in external symbolic data. */
2346 _bfd_ecoff_swap_tir_in
,
2347 _bfd_ecoff_swap_rndx_in
,
2348 /* Functions to swap out external symbolic data. */
2357 _bfd_ecoff_swap_tir_out
,
2358 _bfd_ecoff_swap_rndx_out
,
2359 /* Function to read in symbolic data. */
2360 _bfd_ecoff_slurp_symbolic_info
2362 /* External reloc size. */
2364 /* Reloc swapping functions. */
2365 alpha_ecoff_swap_reloc_in
,
2366 alpha_ecoff_swap_reloc_out
,
2367 /* Backend reloc tweaking. */
2368 alpha_adjust_reloc_in
,
2369 alpha_adjust_reloc_out
,
2370 /* Relocate section contents while linking. */
2371 alpha_relocate_section
,
2372 /* Do final adjustments to filehdr and aouthdr. */
2373 alpha_adjust_headers
,
2374 /* Read an element from an archive at a given file position. */
2375 alpha_ecoff_get_elt_at_filepos
2378 /* Looking up a reloc type is Alpha specific. */
2379 #define _bfd_ecoff_bfd_reloc_type_lookup alpha_bfd_reloc_type_lookup
2380 #define _bfd_ecoff_bfd_reloc_name_lookup \
2381 alpha_bfd_reloc_name_lookup
2383 /* So is getting relocated section contents. */
2384 #define _bfd_ecoff_bfd_get_relocated_section_contents \
2385 alpha_ecoff_get_relocated_section_contents
2387 /* Handling file windows is generic. */
2388 #define _bfd_ecoff_get_section_contents_in_window \
2389 _bfd_generic_get_section_contents_in_window
2391 /* Relaxing sections is generic. */
2392 #define _bfd_ecoff_bfd_relax_section bfd_generic_relax_section
2393 #define _bfd_ecoff_bfd_gc_sections bfd_generic_gc_sections
2394 #define _bfd_ecoff_bfd_merge_sections bfd_generic_merge_sections
2395 #define _bfd_ecoff_bfd_is_group_section bfd_generic_is_group_section
2396 #define _bfd_ecoff_bfd_discard_group bfd_generic_discard_group
2397 #define _bfd_ecoff_section_already_linked \
2398 _bfd_generic_section_already_linked
2400 const bfd_target ecoffalpha_little_vec
=
2402 "ecoff-littlealpha", /* name */
2403 bfd_target_ecoff_flavour
,
2404 BFD_ENDIAN_LITTLE
, /* data byte order is little */
2405 BFD_ENDIAN_LITTLE
, /* header byte order is little */
2407 (HAS_RELOC
| EXEC_P
| /* object flags */
2408 HAS_LINENO
| HAS_DEBUG
|
2409 HAS_SYMS
| HAS_LOCALS
| DYNAMIC
| WP_TEXT
| D_PAGED
),
2411 (SEC_HAS_CONTENTS
| SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_CODE
| SEC_DATA
),
2412 0, /* leading underscore */
2413 ' ', /* ar_pad_char */
2414 15, /* ar_max_namelen */
2415 bfd_getl64
, bfd_getl_signed_64
, bfd_putl64
,
2416 bfd_getl32
, bfd_getl_signed_32
, bfd_putl32
,
2417 bfd_getl16
, bfd_getl_signed_16
, bfd_putl16
, /* data */
2418 bfd_getl64
, bfd_getl_signed_64
, bfd_putl64
,
2419 bfd_getl32
, bfd_getl_signed_32
, bfd_putl32
,
2420 bfd_getl16
, bfd_getl_signed_16
, bfd_putl16
, /* hdrs */
2422 {_bfd_dummy_target
, alpha_ecoff_object_p
, /* bfd_check_format */
2423 _bfd_ecoff_archive_p
, _bfd_dummy_target
},
2424 {bfd_false
, _bfd_ecoff_mkobject
, /* bfd_set_format */
2425 _bfd_generic_mkarchive
, bfd_false
},
2426 {bfd_false
, _bfd_ecoff_write_object_contents
, /* bfd_write_contents */
2427 _bfd_write_archive_contents
, bfd_false
},
2429 BFD_JUMP_TABLE_GENERIC (_bfd_ecoff
),
2430 BFD_JUMP_TABLE_COPY (_bfd_ecoff
),
2431 BFD_JUMP_TABLE_CORE (_bfd_nocore
),
2432 BFD_JUMP_TABLE_ARCHIVE (alpha_ecoff
),
2433 BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff
),
2434 BFD_JUMP_TABLE_RELOCS (_bfd_ecoff
),
2435 BFD_JUMP_TABLE_WRITE (_bfd_ecoff
),
2436 BFD_JUMP_TABLE_LINK (_bfd_ecoff
),
2437 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic
),
2441 (PTR
) &alpha_ecoff_backend_data