1 /* BFD back-end for Hitachi H8/300 COFF binaries.
2 Copyright 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
3 Written by Steve Chamberlain, <sac@cygnus.com>.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
27 #include "coff/h8300.h"
28 #include "coff/internal.h"
31 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
33 /* We derive a hash table from the basic BFD hash table to
34 hold entries in the function vector. Aside from the
35 info stored by the basic hash table, we need the offset
36 of a particular entry within the hash table as well as
37 the offset where we'll add the next entry. */
39 struct funcvec_hash_entry
41 /* The basic hash table entry. */
42 struct bfd_hash_entry root
;
44 /* The offset within the vectors section where
49 struct funcvec_hash_table
51 /* The basic hash table. */
52 struct bfd_hash_table root
;
56 /* Offset at which we'll add the next entry. */
60 static struct bfd_hash_entry
*
62 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
65 funcvec_hash_table_init
66 PARAMS ((struct funcvec_hash_table
*, bfd
*,
67 struct bfd_hash_entry
*(*) PARAMS ((struct bfd_hash_entry
*,
68 struct bfd_hash_table
*,
71 /* To lookup a value in the function vector hash table. */
72 #define funcvec_hash_lookup(table, string, create, copy) \
73 ((struct funcvec_hash_entry *) \
74 bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
76 /* The derived h8300 COFF linker table. Note it's derived from
77 the generic linker hash table, not the COFF backend linker hash
78 table! We use this to attach additional data structures we
79 need while linking on the h8300. */
80 struct h8300_coff_link_hash_table
82 /* The main hash table. */
83 struct generic_link_hash_table root
;
85 /* Section for the vectors table. This gets attached to a
86 random input bfd, we keep it here for easy access. */
87 asection
*vectors_sec
;
89 /* Hash table of the functions we need to enter into the function
91 struct funcvec_hash_table
*funcvec_hash_table
;
94 static struct bfd_link_hash_table
*h8300_coff_link_hash_table_create
97 /* Get the H8/300 COFF linker hash table from a link_info structure. */
99 #define h8300_coff_hash_table(p) \
100 ((struct h8300_coff_link_hash_table *) ((coff_hash_table (p))))
102 /* Initialize fields within a funcvec hash table entry. Called whenever
103 a new entry is added to the funcvec hash table. */
105 static struct bfd_hash_entry
*
106 funcvec_hash_newfunc (entry
, gen_table
, string
)
107 struct bfd_hash_entry
*entry
;
108 struct bfd_hash_table
*gen_table
;
111 struct funcvec_hash_entry
*ret
;
112 struct funcvec_hash_table
*table
;
114 ret
= (struct funcvec_hash_entry
*) entry
;
115 table
= (struct funcvec_hash_table
*) gen_table
;
117 /* Allocate the structure if it has not already been allocated by a
120 ret
= ((struct funcvec_hash_entry
*)
121 bfd_hash_allocate (gen_table
,
122 sizeof (struct funcvec_hash_entry
)));
126 /* Call the allocation method of the superclass. */
127 ret
= ((struct funcvec_hash_entry
*)
128 bfd_hash_newfunc ((struct bfd_hash_entry
*) ret
, gen_table
, string
));
133 /* Note where this entry will reside in the function vector table. */
134 ret
->offset
= table
->offset
;
136 /* Bump the offset at which we store entries in the function
137 vector. We'd like to bump up the size of the vectors section,
138 but it's not easily available here. */
139 if (bfd_get_mach (table
->abfd
) == bfd_mach_h8300
)
141 else if (bfd_get_mach (table
->abfd
) == bfd_mach_h8300h
)
146 /* Everything went OK. */
147 return (struct bfd_hash_entry
*) ret
;
150 /* Initialize the function vector hash table. */
153 funcvec_hash_table_init (table
, abfd
, newfunc
)
154 struct funcvec_hash_table
*table
;
156 struct bfd_hash_entry
*(*newfunc
) PARAMS ((struct bfd_hash_entry
*,
157 struct bfd_hash_table
*,
160 /* Initialize our local fields, then call the generic initialization
164 return (bfd_hash_table_init (&table
->root
, newfunc
));
167 /* Create the derived linker hash table. We use a derived hash table
168 basically to hold "static" information during an h8/300 coff link
169 without using static variables. */
171 static struct bfd_link_hash_table
*
172 h8300_coff_link_hash_table_create (abfd
)
175 struct h8300_coff_link_hash_table
*ret
;
176 ret
= ((struct h8300_coff_link_hash_table
*)
177 bfd_alloc (abfd
, sizeof (struct h8300_coff_link_hash_table
)));
180 if (!_bfd_link_hash_table_init (&ret
->root
.root
, abfd
, generic_link_hash_newfunc
))
182 bfd_release (abfd
, ret
);
186 /* Initialize our data. */
187 ret
->vectors_sec
= NULL
;
188 ret
->funcvec_hash_table
= NULL
;
190 /* OK. Everything's intialized, return the base pointer. */
191 return &ret
->root
.root
;
194 /* special handling for H8/300 relocs.
195 We only come here for pcrel stuff and return normally if not an -r link.
196 When doing -r, we can't do any arithmetic for the pcrel stuff, because
197 the code in reloc.c assumes that we can manipulate the targets of
198 the pcrel branches. This isn't so, since the H8/300 can do relaxing,
199 which means that the gap after the instruction may not be enough to
200 contain the offset required for the branch, so we have to use the only
201 the addend until the final link */
203 static bfd_reloc_status_type
204 special (abfd
, reloc_entry
, symbol
, data
, input_section
, output_bfd
,
207 arelent
*reloc_entry
;
210 asection
*input_section
;
212 char **error_message
;
214 if (output_bfd
== (bfd
*) NULL
)
215 return bfd_reloc_continue
;
220 static reloc_howto_type howto_table
[] =
222 HOWTO (R_RELBYTE
, 0, 0, 8, false, 0, complain_overflow_bitfield
, special
, "8", false, 0x000000ff, 0x000000ff, false),
223 HOWTO (R_RELWORD
, 0, 1, 16, false, 0, complain_overflow_bitfield
, special
, "16", false, 0x0000ffff, 0x0000ffff, false),
224 HOWTO (R_RELLONG
, 0, 2, 32, false, 0, complain_overflow_bitfield
, special
, "32", false, 0xffffffff, 0xffffffff, false),
225 HOWTO (R_PCRBYTE
, 0, 0, 8, true, 0, complain_overflow_signed
, special
, "DISP8", false, 0x000000ff, 0x000000ff, true),
226 HOWTO (R_PCRWORD
, 0, 1, 16, true, 0, complain_overflow_signed
, special
, "DISP16", false, 0x0000ffff, 0x0000ffff, true),
227 HOWTO (R_PCRLONG
, 0, 2, 32, true, 0, complain_overflow_signed
, special
, "DISP32", false, 0xffffffff, 0xffffffff, true),
228 HOWTO (R_MOVB1
, 0, 1, 16, false, 0, complain_overflow_bitfield
, special
, "16/8", false, 0x0000ffff, 0x0000ffff, false),
229 HOWTO (R_MOVB2
, 0, 1, 16, false, 0, complain_overflow_bitfield
, special
, "8/16", false, 0x0000ffff, 0x0000ffff, false),
230 HOWTO (R_JMP1
, 0, 1, 16, false, 0, complain_overflow_bitfield
, special
, "16/pcrel", false, 0x0000ffff, 0x0000ffff, false),
231 HOWTO (R_JMP2
, 0, 0, 8, false, 0, complain_overflow_bitfield
, special
, "pcrecl/16", false, 0x000000ff, 0x000000ff, false),
234 HOWTO (R_JMPL1
, 0, 2, 32, false, 0, complain_overflow_bitfield
, special
, "24/pcrell", false, 0x00ffffff, 0x00ffffff, false),
235 HOWTO (R_JMPL_B8
, 0, 0, 8, false, 0, complain_overflow_bitfield
, special
, "pc8/24", false, 0x000000ff, 0x000000ff, false),
237 HOWTO (R_MOVLB1
, 0, 1, 16, false, 0, complain_overflow_bitfield
,special
, "24/8", false, 0x0000ffff, 0x0000ffff, false),
238 HOWTO (R_MOVLB2
, 0, 1, 16, false, 0, complain_overflow_bitfield
, special
, "8/24", false, 0x0000ffff, 0x0000ffff, false),
240 /* An indirect reference to a function. This causes the function's address
241 to be added to the function vector in lo-mem and puts the address of
242 the function vector's entry in the jsr instruction. */
243 HOWTO (R_MEM_INDIRECT
, 0, 0, 8, false, 0, complain_overflow_bitfield
, special
, "8/indirect", false, 0x000000ff, 0x000000ff, false),
248 /* Turn a howto into a reloc number */
250 #define SELECT_RELOC(x,howto) \
251 { x.r_type = select_reloc(howto); }
253 #define BADMAG(x) (H8300BADMAG(x)&& H8300HBADMAG(x))
254 #define H8300 1 /* Customize coffcode.h */
255 #define __A_MAGIC_SET__
259 /* Code to swap in the reloc */
260 #define SWAP_IN_RELOC_OFFSET bfd_h_get_32
261 #define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
262 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
263 dst->r_stuff[0] = 'S'; \
264 dst->r_stuff[1] = 'C';
269 reloc_howto_type
*howto
;
274 /* Code to turn a r_type into a howto ptr, uses the above howto table
278 rtype2howto (internal
, dst
)
280 struct internal_reloc
*dst
;
285 internal
->howto
= howto_table
+ 0;
288 internal
->howto
= howto_table
+ 1;
291 internal
->howto
= howto_table
+ 2;
294 internal
->howto
= howto_table
+ 3;
297 internal
->howto
= howto_table
+ 4;
300 internal
->howto
= howto_table
+ 5;
303 internal
->howto
= howto_table
+ 6;
306 internal
->howto
= howto_table
+ 7;
309 internal
->howto
= howto_table
+ 8;
312 internal
->howto
= howto_table
+ 9;
315 internal
->howto
= howto_table
+ 10;
318 internal
->howto
= howto_table
+ 11;
321 internal
->howto
= howto_table
+ 12;
324 internal
->howto
= howto_table
+ 13;
327 internal
->howto
= howto_table
+ 14;
335 #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
338 /* Perform any necessaru magic to the addend in a reloc entry */
341 #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
342 cache_ptr->addend = ext_reloc.r_offset;
345 #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
346 reloc_processing(relent, reloc, symbols, abfd, section)
349 reloc_processing (relent
, reloc
, symbols
, abfd
, section
)
351 struct internal_reloc
*reloc
;
356 relent
->address
= reloc
->r_vaddr
;
357 rtype2howto (relent
, reloc
);
359 if (((int) reloc
->r_symndx
) > 0)
361 relent
->sym_ptr_ptr
= symbols
+ obj_convert (abfd
)[reloc
->r_symndx
];
365 relent
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
370 relent
->addend
= reloc
->r_offset
;
372 relent
->address
-= section
->vma
;
373 /* relent->section = 0;*/
378 h8300_reloc16_estimate(abfd
, input_section
, reloc
, shrink
, link_info
)
380 asection
*input_section
;
383 struct bfd_link_info
*link_info
;
389 /* The address of the thing to be relocated will have moved back by
390 the size of the shrink - but we don't change reloc->address here,
391 since we need it to know where the relocation lives in the source
394 /* reloc->address -= shrink; conceptual */
396 bfd_vma address
= reloc
->address
- shrink
;
399 switch (reloc
->howto
->type
)
406 /* Thing is a move one byte */
408 value
= bfd_coff_reloc16_get_value(reloc
, link_info
, input_section
);
413 /* Change the reloc type from 16bit, possible 8 to 8bit
415 reloc
->howto
= reloc
->howto
+ 1;
416 /* The place to relc moves back by one */
417 /* This will be two bytes smaller in the long run */
419 bfd_perform_slip(abfd
, 2, input_section
, address
);
423 /* This is the 24 bit branch which could become an 8 bitter,
424 the relocation points to the first byte of the insn, not the
428 value
= bfd_coff_reloc16_get_value(reloc
, link_info
, input_section
);
430 dot
= input_section
->output_section
->vma
+
431 input_section
->output_offset
+ address
;
433 /* See if the address we're looking at within 127 bytes of where
434 we are, if so then we can use a small branch rather than the
435 jump we were going to */
439 if (-120 < (long)gap
&& (long)gap
< 120 )
442 /* Change the reloc type from 24bit, possible 8 to 8bit
444 reloc
->howto
= reloc
->howto
+ 1;
445 /* This will be two bytes smaller in the long run */
447 bfd_perform_slip(abfd
, 2, input_section
, address
);
453 value
= bfd_coff_reloc16_get_value(reloc
, link_info
, input_section
);
455 dot
= input_section
->output_section
->vma
+
456 input_section
->output_offset
+ address
;
458 /* See if the address we're looking at within 127 bytes of where
459 we are, if so then we can use a small branch rather than the
460 jump we were going to */
462 gap
= value
- (dot
- shrink
);
465 if (-120 < (long)gap
&& (long)gap
< 120 )
468 /* Change the reloc type from 16bit, possible 8 to 8bit
470 reloc
->howto
= reloc
->howto
+ 1;
471 /* The place to relc moves back by one */
473 /* This will be two bytes smaller in the long run */
475 bfd_perform_slip(abfd
, 2, input_section
, address
);
485 /* First phase of a relaxing link */
489 R_MOVB1 R_MOVB2 mov.b with 16bit or 8 bit address
490 R_JMP1 R_JMP2 jmp or pcrel branch
491 R_JMPL1 R_JMPL_B8 24jmp or pcrel branch
492 R_MOVLB1 R_MOVLB2 24 or 8 bit reloc for mov.b
498 h8300_reloc16_extra_cases (abfd
, link_info
, link_order
, reloc
, data
, src_ptr
,
501 struct bfd_link_info
*link_info
;
502 struct bfd_link_order
*link_order
;
505 unsigned int *src_ptr
;
506 unsigned int *dst_ptr
;
508 unsigned int src_address
= *src_ptr
;
509 unsigned int dst_address
= *dst_ptr
;
510 asection
*input_section
= link_order
->u
.indirect
.section
;
512 switch (reloc
->howto
->type
)
514 /* A 24 bit branch which could be a 8 bit pcrel, really pointing to
515 the byte before the 24bit hole, so we can treat it as a 32bit pointer */
518 bfd_vma dot
= link_order
->offset
520 + link_order
->u
.indirect
.section
->output_section
->vma
;
521 int gap
= (bfd_coff_reloc16_get_value (reloc
, link_info
, input_section
)
523 if (gap
> 127 || gap
< -128)
525 if (! ((*link_info
->callbacks
->reloc_overflow
)
526 (link_info
, bfd_asymbol_name (*reloc
->sym_ptr_ptr
),
527 reloc
->howto
->name
, reloc
->addend
, input_section
->owner
,
528 input_section
, reloc
->address
)))
532 bfd_put_8 (abfd
, gap
, data
+ dst_address
);
540 bfd_vma dot
= link_order
->offset
542 + link_order
->u
.indirect
.section
->output_section
->vma
;
543 int gap
= (bfd_coff_reloc16_get_value (reloc
, link_info
, input_section
)
545 if (gap
> 32767 || gap
< -32768)
547 if (! ((*link_info
->callbacks
->reloc_overflow
)
548 (link_info
, bfd_asymbol_name (*reloc
->sym_ptr_ptr
),
549 reloc
->howto
->name
, reloc
->addend
, input_section
->owner
,
550 input_section
, reloc
->address
)))
554 bfd_put_16 (abfd
, gap
, data
+ dst_address
);
563 unsigned int gap
= bfd_coff_reloc16_get_value (reloc
, link_info
,
566 || (gap
>= 0x0000ff00
567 && gap
<= 0x0000ffff)
568 || ( gap
>= 0x00ffff00
569 && gap
<= 0x00ffffff)
570 || ( gap
>= 0xffffff00
571 && gap
<= 0xffffffff))
573 bfd_put_8 (abfd
, gap
, data
+ dst_address
);
579 if (! ((*link_info
->callbacks
->reloc_overflow
)
580 (link_info
, bfd_asymbol_name (*reloc
->sym_ptr_ptr
),
581 reloc
->howto
->name
, reloc
->addend
, input_section
->owner
,
582 input_section
, reloc
->address
)))
588 /* A relword which would have like to have been a pcrel */
590 /* A relword which would like to have been modified but
594 bfd_coff_reloc16_get_value (reloc
, link_info
, input_section
),
601 bfd_coff_reloc16_get_value (reloc
, link_info
, input_section
),
608 /* Special relaxed type, there will be a gap between where we
609 get stuff from and where we put stuff to now
611 for a mov.b @aa:16 -> mov.b @aa:8
612 opcode 0x6a 0x0y offset
615 if (data
[dst_address
- 1] != 0x6a)
617 switch (data
[src_address
] & 0xf0)
621 data
[dst_address
- 1] = (data
[src_address
] & 0xf) | 0x20;
625 data
[dst_address
- 1] = (data
[src_address
] & 0xf) | 0x30;
631 /* the offset must fit ! after all, what was all the relaxing
635 bfd_coff_reloc16_get_value (reloc
, link_info
, input_section
),
638 /* Note the magic - src goes up by two bytes, but dst by only
647 /* Speciial relaxed type */
649 bfd_vma dot
= link_order
->offset
651 + link_order
->u
.indirect
.section
->output_section
->vma
;
653 int gap
= (bfd_coff_reloc16_get_value (reloc
, link_info
, input_section
)
656 if ((gap
& ~0xff) != 0 && ((gap
& 0xff00) != 0xff00))
659 bfd_put_8 (abfd
, gap
, data
+ dst_address
);
661 switch (data
[dst_address
- 1])
665 bfd_put_8 (abfd
, 0x55, data
+ dst_address
- 1);
669 bfd_put_8 (abfd
, 0x40, data
+ dst_address
- 1);
682 case R_JMPL_B8
: /* 24 bit branch which is now 8 bits */
684 /* Speciial relaxed type */
686 bfd_vma dot
= link_order
->offset
688 + link_order
->u
.indirect
.section
->output_section
->vma
;
690 int gap
= (bfd_coff_reloc16_get_value (reloc
, link_info
, input_section
)
693 if ((gap
& ~0xff) != 0 && ((gap
& 0xff00) != 0xff00))
696 switch (data
[src_address
])
700 bfd_put_8 (abfd
, 0x55, data
+ dst_address
);
704 bfd_put_8 (abfd
, 0x40, data
+ dst_address
);
708 bfd_put_8 (abfd
, 0xde, data
+ dst_address
);
712 bfd_put_8 (abfd
, gap
, data
+ dst_address
+ 1);
721 int v
= bfd_coff_reloc16_get_value (reloc
, link_info
, input_section
);
722 int o
= bfd_get_32 (abfd
, data
+ src_address
);
723 v
= (v
& 0x00ffffff) | (o
& 0xff000000);
724 bfd_put_32 (abfd
, v
, data
+ dst_address
);
732 /* A 24 bit mov which could be an 8 bit move, really pointing to
733 the byte before the 24bit hole, so we can treat it as a 32bit pointer */
736 int v
= bfd_coff_reloc16_get_value (reloc
, link_info
, input_section
);
737 int o
= bfd_get_32 (abfd
, data
+ dst_address
);
738 v
= (v
& 0x00ffffff) | (o
& 0xff000000);
739 bfd_put_32 (abfd
, v
, data
+ dst_address
);
746 /* An 8bit memory indirect instruction (jmp/jsr).
748 There's several things that need to be done to handle
751 If this is a reloc against the absolute symbol, then
752 we should handle it just R_RELBYTE. Likewise if it's
753 for a symbol with a value ge 0 and le 0xff.
755 Otherwise it's a jump/call through the function vector,
756 and the linker is expected to set up the function vector
757 and put the right value into the jump/call instruction. */
760 /* We need to find the symbol so we can determine it's
761 address in the function vector table. */
765 struct funcvec_hash_entry
*h
;
766 asection
*vectors_sec
= h8300_coff_hash_table (link_info
)->vectors_sec
;
768 /* First see if this is a reloc against the absolute symbol
769 or against a symbol with a nonnegative value <= 0xff. */
770 symbol
= *(reloc
->sym_ptr_ptr
);
771 value
= bfd_coff_reloc16_get_value (reloc
, link_info
, input_section
);
772 if (symbol
== bfd_abs_section_ptr
->symbol
773 || (value
>= 0 && value
<= 0xff))
775 /* This should be handled in a manner very similar to
776 R_RELBYTES. If the value is in range, then just slam
777 the value into the right location. Else trigger a
778 reloc overflow callback. */
779 if (value
>= 0 && value
<= 0xff)
781 bfd_put_8 (abfd
, value
, data
+ dst_address
);
787 if (! ((*link_info
->callbacks
->reloc_overflow
)
788 (link_info
, bfd_asymbol_name (*reloc
->sym_ptr_ptr
),
789 reloc
->howto
->name
, reloc
->addend
, input_section
->owner
,
790 input_section
, reloc
->address
)))
796 /* This is a jump/call through a function vector, and we're
797 expected to create the function vector ourselves.
799 First look up this symbol in the linker hash table -- we need
800 the derived linker symbol which holds this symbol's index
801 in the function vector. */
803 if (symbol
->flags
& BSF_LOCAL
)
805 char *new_name
= bfd_malloc (strlen (name
) + 9);
806 if (new_name
== NULL
)
809 strcpy (new_name
, name
);
810 sprintf (new_name
+ strlen (name
), "_%08x",
811 (int)symbol
->section
);
815 h
= funcvec_hash_lookup (h8300_coff_hash_table (link_info
)->funcvec_hash_table
,
818 /* This shouldn't ever happen. If it does that means we've got
819 data corruption of some kind. Aborting seems like a reasonable
821 if (h
== NULL
|| vectors_sec
== NULL
)
824 /* Place the address of the function vector entry into the
827 vectors_sec
->output_offset
+ h
->offset
,
833 /* Now create an entry in the function vector itself. */
834 if (bfd_get_mach (input_section
->owner
) == bfd_mach_h8300
)
836 bfd_coff_reloc16_get_value (reloc
,
839 vectors_sec
->contents
+ h
->offset
);
840 else if (bfd_get_mach (input_section
->owner
) == bfd_mach_h8300h
)
842 bfd_coff_reloc16_get_value (reloc
,
845 vectors_sec
->contents
+ h
->offset
);
849 /* Gross. We've already written the contents of the vector section
850 before we get here... So we write it again with the new data. */
851 bfd_set_section_contents (vectors_sec
->output_section
->owner
,
852 vectors_sec
->output_section
,
853 vectors_sec
->contents
,
854 vectors_sec
->output_offset
,
855 vectors_sec
->_raw_size
);
865 *src_ptr
= src_address
;
866 *dst_ptr
= dst_address
;
870 /* Routine for the h8300 linker.
872 This routine is necessary to handle the special R_MEM_INDIRECT
873 relocs on the h8300. It's responsible for generating a vectors
874 section and attaching it to an input bfd as well as sizing
875 the vectors section. It also creates our vectors hash table.
877 It uses the generic linker routines to actually add the symbols.
878 from this BFD to the bfd linker hash table. It may add a few
879 selected static symbols to the bfd linker hash table. */
882 h8300_bfd_link_add_symbols(abfd
, info
)
884 struct bfd_link_info
*info
;
887 struct funcvec_hash_table
*funcvec_hash_table
;
889 /* If we haven't created a vectors section, do so now. */
890 if (!h8300_coff_hash_table (info
)->vectors_sec
)
894 /* Make sure the appropriate flags are set, including SEC_IN_MEMORY. */
895 flags
= (SEC_ALLOC
| SEC_LOAD
896 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_READONLY
);
897 h8300_coff_hash_table (info
)->vectors_sec
= bfd_make_section (abfd
,
900 /* If the section wasn't created, or we couldn't set the flags,
901 quit quickly now, rather than dieing a painful death later. */
902 if (! h8300_coff_hash_table (info
)->vectors_sec
903 || ! bfd_set_section_flags (abfd
,
904 h8300_coff_hash_table(info
)->vectors_sec
,
908 /* Also create the vector hash table. */
909 funcvec_hash_table
= ((struct funcvec_hash_table
*)
910 bfd_alloc (abfd
, sizeof (struct funcvec_hash_table
)));
912 if (!funcvec_hash_table
)
915 /* And initialize the funcvec hash table. */
916 if (!funcvec_hash_table_init (funcvec_hash_table
, abfd
,
917 funcvec_hash_newfunc
))
919 bfd_release (abfd
, funcvec_hash_table
);
923 /* Store away a pointer to the funcvec hash table. */
924 h8300_coff_hash_table (info
)->funcvec_hash_table
= funcvec_hash_table
;
927 /* Load up the function vector hash table. */
928 funcvec_hash_table
= h8300_coff_hash_table (info
)->funcvec_hash_table
;
930 /* Add the symbols using the generic code. */
931 _bfd_generic_link_add_symbols (abfd
, info
);
933 /* Now scan the relocs for all the sections in this bfd; create
934 additional space in the .vectors section as needed. */
935 for (sec
= abfd
->sections
; sec
; sec
= sec
->next
)
937 unsigned long reloc_size
, reloc_count
, i
;
941 /* Suck in the relocs, symbols & canonicalize them. */
942 reloc_size
= bfd_get_reloc_upper_bound (abfd
, sec
);
946 relocs
= (arelent
**)bfd_malloc ((size_t)reloc_size
);
950 /* The symbols should have been read in by _bfd_generic link_add_symbols
951 call abovec, so we can cheat and use the pointer to them that was
952 saved in the above call. */
953 symbols
= _bfd_generic_link_get_symbols(abfd
);
954 reloc_count
= bfd_canonicalize_reloc (abfd
, sec
, relocs
, symbols
);
956 /* Now walk through all the relocations in this section. */
957 for (i
= 0; i
< reloc_count
; i
++)
959 arelent
*reloc
= relocs
[i
];
960 asymbol
*symbol
= *(reloc
->sym_ptr_ptr
);
963 /* We've got an indirect reloc. See if we need to add it
964 to the function vector table. At this point, we have
965 to add a new entry for each unique symbol referenced
966 by an R_MEM_INDIRECT relocation except for a reloc
967 against the absolute section symbol. */
968 if (reloc
->howto
->type
== R_MEM_INDIRECT
969 && symbol
!= bfd_abs_section_ptr
->symbol
)
972 struct funcvec_hash_entry
*h
;
975 if (symbol
->flags
& BSF_LOCAL
)
977 char *new_name
= bfd_malloc (strlen (name
) + 9);
979 if (new_name
== NULL
)
982 strcpy (new_name
, name
);
983 sprintf (new_name
+ strlen (name
), "_%08x",
984 (int)symbol
->section
);
988 /* Look this symbol up in the function vector hash table. */
989 h
= funcvec_hash_lookup (h8300_coff_hash_table (info
)->funcvec_hash_table
,
993 /* If this symbol isn't already in the hash table, add
994 it and bump up the size of the hash table. */
997 h
= funcvec_hash_lookup (h8300_coff_hash_table (info
)->funcvec_hash_table
,
1005 /* Bump the size of the vectors section. Each vector
1006 takes 2 bytes on the h8300 and 4 bytes on the h8300h. */
1007 if (bfd_get_mach (abfd
) == bfd_mach_h8300
)
1008 h8300_coff_hash_table (info
)->vectors_sec
->_raw_size
+= 2;
1009 else if (bfd_get_mach (abfd
) == bfd_mach_h8300h
)
1010 h8300_coff_hash_table (info
)->vectors_sec
->_raw_size
+= 4;
1015 /* We're done with the relocations, release them. */
1019 /* Now actually allocate some space for the function vector. It's
1020 wasteful to do this more than once, but this is easier. */
1021 if (h8300_coff_hash_table (info
)->vectors_sec
->_raw_size
!= 0)
1023 /* Free the old contents. */
1024 if (h8300_coff_hash_table (info
)->vectors_sec
->contents
)
1025 free (h8300_coff_hash_table (info
)->vectors_sec
->contents
);
1027 /* Allocate new contents. */
1028 h8300_coff_hash_table (info
)->vectors_sec
->contents
1029 = bfd_malloc (h8300_coff_hash_table (info
)->vectors_sec
->_raw_size
);
1035 #define coff_reloc16_extra_cases h8300_reloc16_extra_cases
1036 #define coff_reloc16_estimate h8300_reloc16_estimate
1037 #define coff_bfd_link_add_symbols h8300_bfd_link_add_symbols
1038 #define coff_bfd_link_hash_table_create h8300_coff_link_hash_table_create
1040 #define COFF_LONG_FILENAMES
1041 #include "coffcode.h"
1044 #undef coff_bfd_get_relocated_section_contents
1045 #undef coff_bfd_relax_section
1046 #define coff_bfd_get_relocated_section_contents \
1047 bfd_coff_reloc16_get_relocated_section_contents
1048 #define coff_bfd_relax_section bfd_coff_reloc16_relax_section
1052 const bfd_target h8300coff_vec
=
1054 "coff-h8300", /* name */
1055 bfd_target_coff_flavour
,
1056 BFD_ENDIAN_BIG
, /* data byte order is big */
1057 BFD_ENDIAN_BIG
, /* header byte order is big */
1059 (HAS_RELOC
| EXEC_P
| /* object flags */
1060 HAS_LINENO
| HAS_DEBUG
|
1061 HAS_SYMS
| HAS_LOCALS
| WP_TEXT
| BFD_IS_RELAXABLE
),
1062 (SEC_HAS_CONTENTS
| SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
), /* section flags */
1063 '_', /* leading char */
1064 '/', /* ar_pad_char */
1065 15, /* ar_max_namelen */
1066 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
1067 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
1068 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
, /* data */
1069 bfd_getb64
, bfd_getb_signed_64
, bfd_putb64
,
1070 bfd_getb32
, bfd_getb_signed_32
, bfd_putb32
,
1071 bfd_getb16
, bfd_getb_signed_16
, bfd_putb16
, /* hdrs */
1073 {_bfd_dummy_target
, coff_object_p
, /* bfd_check_format */
1074 bfd_generic_archive_p
, _bfd_dummy_target
},
1075 {bfd_false
, coff_mkobject
, _bfd_generic_mkarchive
, /* bfd_set_format */
1077 {bfd_false
, coff_write_object_contents
, /* bfd_write_contents */
1078 _bfd_write_archive_contents
, bfd_false
},
1080 BFD_JUMP_TABLE_GENERIC (coff
),
1081 BFD_JUMP_TABLE_COPY (coff
),
1082 BFD_JUMP_TABLE_CORE (_bfd_nocore
),
1083 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff
),
1084 BFD_JUMP_TABLE_SYMBOLS (coff
),
1085 BFD_JUMP_TABLE_RELOCS (coff
),
1086 BFD_JUMP_TABLE_WRITE (coff
),
1087 BFD_JUMP_TABLE_LINK (coff
),
1088 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic
),