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e98e6ec1 SC |
1 | /* This module is part of BFD */ |
2 | ||
3 | ||
4 | /* The intention is that one day, all the code which uses sections | |
5 | will change and use seclets instead - maybe seglet would have been | |
6 | a better name.. | |
7 | ||
8 | Anyway, a seclet contains enough info to be able to describe an | |
9 | area of output memory in one go. | |
10 | ||
11 | The only description so far catered for is that of the | |
12 | <<bfd_indirect_seclet>>, which is a select which points to a | |
13 | <<section>> and the <<asymbols>> associated with the section, so | |
14 | that relocation can be done when needed. | |
15 | ||
16 | One day there will be more types - they will at least migrate from | |
17 | the linker's data structures - also there could be extra stuff, | |
18 | like a bss seclet, which descibes a lump of memory as containing | |
19 | zeros compactly, without the horrible SEC_* flag cruft. | |
20 | ||
21 | ||
22 | */ | |
23 | ||
24 | #include "bfd.h" | |
25 | #include "sysdep.h" | |
26 | #include "libbfd.h" | |
27 | #include "seclet.h" | |
28 | #include "coff/internal.h" | |
29 | bfd_seclet_type * | |
30 | DEFUN(bfd_new_seclet,(abfd, section), | |
31 | bfd *abfd AND | |
32 | asection *section) | |
33 | { | |
34 | bfd_seclet_type *n = (bfd_seclet_type *)bfd_alloc(abfd, sizeof(bfd_seclet_type)); | |
35 | if (section->seclets_tail != (bfd_seclet_type *)NULL) { | |
36 | section->seclets_tail->next = n; | |
37 | } | |
38 | else | |
39 | { | |
40 | section->seclets_head = n; | |
41 | } | |
42 | section->seclets_tail = n; | |
43 | ||
44 | return n; | |
e98e6ec1 SC |
45 | } |
46 | ||
47 | ||
48 | ||
49 | ||
50 | #define MAX_ERRORS_IN_A_ROW 10 | |
51 | extern bfd_error_vector_type bfd_error_vector; | |
e98e6ec1 | 52 | |
e98e6ec1 SC |
53 | |
54 | void | |
3be56062 | 55 | DEFUN(rel,(abfd, seclet, output_section, data), |
e98e6ec1 SC |
56 | bfd *abfd AND |
57 | bfd_seclet_type *seclet AND | |
3be56062 SC |
58 | asection *output_section AND |
59 | PTR data) | |
e98e6ec1 | 60 | { |
2cfd0562 | 61 | |
ab98fd5d | 62 | if (output_section->flags & SEC_HAS_CONTENTS |
b58e9180 SC |
63 | && !(output_section->flags & SEC_NEVER_LOAD) |
64 | && seclet->size) | |
e98e6ec1 | 65 | { |
2cfd0562 | 66 | data = bfd_get_relocated_section_contents(abfd, seclet, data); |
e5932011 SC |
67 | if(bfd_set_section_contents(abfd, |
68 | output_section, | |
69 | data, | |
70 | seclet->offset, | |
71 | seclet->size) == false) | |
72 | { | |
73 | abort(); | |
74 | } | |
e98e6ec1 | 75 | } |
e98e6ec1 SC |
76 | } |
77 | ||
78 | void | |
3be56062 | 79 | DEFUN(seclet_dump_seclet,(abfd, seclet, section, data), |
e98e6ec1 SC |
80 | bfd *abfd AND |
81 | bfd_seclet_type *seclet AND | |
3be56062 SC |
82 | asection *section AND |
83 | PTR data) | |
e98e6ec1 SC |
84 | { |
85 | switch (seclet->type) | |
86 | { | |
e5932011 | 87 | case bfd_indirect_seclet: |
e98e6ec1 SC |
88 | /* The contents of this section come from another one somewhere |
89 | else */ | |
3be56062 | 90 | rel(abfd, seclet, section, data); |
e98e6ec1 | 91 | break; |
e5932011 SC |
92 | case bfd_fill_seclet: |
93 | /* Fill in the section with us */ | |
94 | { | |
95 | char *d = malloc(seclet->size); | |
96 | unsigned int i; | |
97 | for (i =0; i < seclet->size; i+=2) { | |
98 | d[i] = seclet->u.fill.value >> 8; | |
99 | } | |
100 | for (i = 1; i < seclet->size; i+=2) { | |
101 | d[i] = seclet->u.fill.value ; | |
102 | } | |
103 | bfd_set_section_contents(abfd, section, d, seclet->offset, seclet->size); | |
104 | ||
105 | } | |
106 | break; | |
107 | default: | |
e98e6ec1 SC |
108 | abort(); |
109 | } | |
e98e6ec1 SC |
110 | } |
111 | ||
112 | void | |
3be56062 SC |
113 | DEFUN(seclet_dump,(abfd, data), |
114 | bfd *abfd AND | |
115 | PTR data) | |
e98e6ec1 SC |
116 | { |
117 | /* Write all the seclets on the bfd out, relocate etc according to the | |
118 | rules */ | |
119 | ||
120 | asection *o = abfd->sections; | |
121 | while (o != (asection *)NULL) | |
122 | { | |
123 | bfd_seclet_type *p = o->seclets_head; | |
124 | while (p != (bfd_seclet_type *)NULL) | |
125 | { | |
3be56062 | 126 | seclet_dump_seclet(abfd, p, o, data); |
e98e6ec1 SC |
127 | p = p ->next; |
128 | } | |
e98e6ec1 SC |
129 | o = o->next; |
130 | } | |
e98e6ec1 | 131 | } |