2 Copyright (C) 1992, 1993 Free Software Foundation, Inc.
3 Written by Cygnus Support.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
21 /* This module is part of BFD */
24 /* The intention is that one day, all the code which uses sections
25 will change and use seclets instead - maybe seglet would have been
28 Anyway, a seclet contains enough info to be able to describe an
29 area of output memory in one go.
31 The only description so far catered for is that of the
32 <<bfd_indirect_seclet>>, which is a select which points to a
33 <<section>> and the <<asymbols>> associated with the section, so
34 that relocation can be done when needed.
36 One day there will be more types - they will at least migrate from
37 the linker's data structures - also there could be extra stuff,
38 like a bss seclet, which descibes a lump of memory as containing
39 zeros compactly, without the horrible SEC_* flag cruft.
48 #include "coff/internal.h"
50 /* Create a new seclet and attach it to a section. */
53 DEFUN(bfd_new_seclet
,(abfd
, section
),
57 bfd_seclet_type
*n
= (bfd_seclet_type
*)bfd_alloc(abfd
, sizeof(bfd_seclet_type
));
58 if (section
->seclets_tail
!= (bfd_seclet_type
*)NULL
) {
59 section
->seclets_tail
->next
= n
;
63 section
->seclets_head
= n
;
65 section
->seclets_tail
= n
;
70 /* Given an indirect seclet which points to an input section, relocate
71 the contents of the seclet and put the data in its final
75 DEFUN(rel
,(abfd
, seclet
, output_section
, data
, relocateable
),
77 bfd_seclet_type
*seclet AND
78 asection
*output_section AND
82 if ((output_section
->flags
& SEC_HAS_CONTENTS
) != 0
85 data
= (PTR
) bfd_get_relocated_section_contents(abfd
, seclet
, data
,
87 if(bfd_set_section_contents(abfd
,
91 seclet
->size
) == false)
99 /* Put the contents of a seclet in its final destination. */
102 DEFUN(seclet_dump_seclet
,(abfd
, seclet
, section
, data
, relocateable
),
104 bfd_seclet_type
*seclet AND
105 asection
*section AND
107 boolean relocateable
)
109 switch (seclet
->type
)
111 case bfd_indirect_seclet
:
112 /* The contents of this section come from another one somewhere
114 return rel(abfd
, seclet
, section
, data
, relocateable
);
116 case bfd_fill_seclet
:
117 /* Fill in the section with us */
119 char *d
= bfd_xmalloc(seclet
->size
);
121 for (i
=0; i
< seclet
->size
; i
+=2) {
122 d
[i
] = seclet
->u
.fill
.value
>> 8;
124 for (i
= 1; i
< seclet
->size
; i
+=2) {
125 d
[i
] = seclet
->u
.fill
.value
;
127 /* Don't bother to fill in empty sections */
128 if (!(bfd_get_section_flags(abfd
, section
) & SEC_HAS_CONTENTS
))
132 return bfd_set_section_contents(abfd
, section
, d
, seclet
->offset
,
145 bfd_generic_seclet_link
148 boolean bfd_generic_seclet_link
151 boolean relocateable);
155 The generic seclet linking routine. The caller should have
156 set up seclets for all the output sections. The DATA argument
157 should point to a memory area large enough to hold the largest
158 section. This function looks through the seclets and moves
159 the contents into the output sections. If RELOCATEABLE is
160 true, the orelocation fields of the output sections must
161 already be initialized.
166 DEFUN(bfd_generic_seclet_link
,(abfd
, data
, relocateable
),
169 boolean relocateable
)
171 asection
*o
= abfd
->sections
;
172 while (o
!= (asection
*)NULL
)
174 bfd_seclet_type
*p
= o
->seclets_head
;
175 while (p
!= (bfd_seclet_type
*)NULL
)
177 if (seclet_dump_seclet(abfd
, p
, o
, data
, relocateable
) == false)
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