1 /* Copyright (C) 2008 Jeffrey Brian Arnold <jbarnold@mit.edu>
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License, version 2.
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
17 #include "objcommon.h"
19 void vec_do_reserve(void **data
, size_t *mem_size
, size_t new_size
)
21 if (new_size
> *mem_size
|| new_size
* 2 < *mem_size
) {
22 if (new_size
< *mem_size
* 2)
23 new_size
= *mem_size
* 2;
24 *data
= realloc(*data
, new_size
);
25 assert(new_size
== 0 || *data
!= NULL
);
30 void get_syms(bfd
*abfd
, struct asymbolp_vec
*syms
)
32 long storage_needed
= bfd_get_symtab_upper_bound(abfd
);
33 if (storage_needed
== 0)
35 assert(storage_needed
>= 0);
38 vec_reserve(syms
, storage_needed
);
39 vec_resize(syms
, bfd_canonicalize_symtab(abfd
, syms
->data
));
40 assert(syms
->size
>= 0);
43 struct supersect
*fetch_supersect(bfd
*abfd
, asection
*sect
,
44 struct asymbolp_vec
*syms
)
46 static struct supersect
*supersects
= NULL
;
49 for (ss
= supersects
; ss
!= NULL
; ss
= ss
->next
) {
50 if (strcmp(sect
->name
, ss
->name
) == 0 && ss
->parent
== abfd
)
54 struct supersect
*new = malloc(sizeof(*new));
56 new->name
= malloc(strlen(sect
->name
) + 1);
57 strcpy(new->name
, sect
->name
);
58 new->next
= supersects
;
61 vec_init(&new->contents
);
62 vec_resize(&new->contents
, bfd_get_section_size(sect
));
63 assert(bfd_get_section_contents
64 (abfd
, sect
, new->contents
.data
, 0, new->contents
.size
));
65 new->alignment
= 1 << bfd_get_section_alignment(abfd
, sect
);
67 vec_init(&new->relocs
);
68 vec_reserve(&new->relocs
, bfd_get_reloc_upper_bound(abfd
, sect
));
69 vec_resize(&new->relocs
,
70 bfd_canonicalize_reloc(abfd
, sect
, new->relocs
.data
,
72 assert(new->relocs
.size
>= 0);
77 int label_offset(const char *sym_name
)
81 sym_name
[i
] != 0 && sym_name
[i
+ 1] != 0 && sym_name
[i
+ 2] != 0
82 && sym_name
[i
+ 3] != 0; i
++) {
83 if (sym_name
[i
] == '_' && sym_name
[i
+ 1] == '_'
84 && sym_name
[i
+ 2] == '_' && sym_name
[i
+ 3] == '_')
90 const char *only_label(const char *sym_name
)
92 int offset
= label_offset(sym_name
);
95 return &sym_name
[offset
];
98 const char *dup_wolabel(const char *sym_name
)
100 int offset
, entire_strlen
, label_strlen
, new_strlen
;
103 offset
= label_offset(sym_name
);
107 label_strlen
= strlen(&sym_name
[offset
]) + strlen("____");
109 entire_strlen
= strlen(sym_name
);
110 new_strlen
= entire_strlen
- label_strlen
;
111 newstr
= malloc(new_strlen
+ 1);
112 memcpy(newstr
, sym_name
, new_strlen
);
113 newstr
[new_strlen
] = 0;