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ae1b99e4 JL |
1 | /* Matsushita 10300 specific support for 32-bit ELF |
2 | Copyright (C) 1996 Free Software Foundation, Inc. | |
efc2b064 JL |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #include "bfd.h" | |
21 | #include "sysdep.h" | |
22 | #include "libbfd.h" | |
23 | #include "elf-bfd.h" | |
24 | ||
25 | static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup | |
26 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); | |
ae1b99e4 | 27 | static void mn10300_info_to_howto_rel |
efc2b064 JL |
28 | PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *)); |
29 | ||
30 | /* Try to minimize the amount of space occupied by relocation tables | |
31 | on the ROM (not that the ROM won't be swamped by other ELF overhead). */ | |
32 | #define USE_REL | |
33 | ||
34 | enum reloc_type | |
35 | { | |
ae1b99e4 JL |
36 | R_MN10300_NONE = 0, |
37 | R_MN10300_MAX | |
efc2b064 JL |
38 | }; |
39 | ||
ae1b99e4 | 40 | static reloc_howto_type elf_mn10300_howto_table[] = |
efc2b064 JL |
41 | { |
42 | /* */ | |
ae1b99e4 | 43 | HOWTO (R_MN10300_NONE, |
efc2b064 JL |
44 | 0, |
45 | 2, | |
46 | 16, | |
47 | false, | |
48 | 0, | |
49 | complain_overflow_bitfield, | |
50 | bfd_elf_generic_reloc, | |
ae1b99e4 | 51 | "R_MN10300_NONE", |
efc2b064 JL |
52 | false, |
53 | 0, | |
54 | 0, | |
55 | false), | |
56 | }; | |
57 | ||
ae1b99e4 | 58 | struct mn10300_reloc_map |
efc2b064 JL |
59 | { |
60 | unsigned char bfd_reloc_val; | |
61 | unsigned char elf_reloc_val; | |
62 | }; | |
63 | ||
ae1b99e4 | 64 | static const struct mn10300_reloc_map mn10300_reloc_map[] = |
efc2b064 | 65 | { |
ae1b99e4 | 66 | { BFD_RELOC_NONE, R_MN10300_NONE, }, |
efc2b064 JL |
67 | }; |
68 | ||
69 | static reloc_howto_type * | |
70 | bfd_elf32_bfd_reloc_type_lookup (abfd, code) | |
71 | bfd *abfd; | |
72 | bfd_reloc_code_real_type code; | |
73 | { | |
74 | unsigned int i; | |
75 | ||
76 | for (i = 0; | |
ae1b99e4 | 77 | i < sizeof (mn10300_reloc_map) / sizeof (struct mn10300_reloc_map); |
efc2b064 JL |
78 | i++) |
79 | { | |
ae1b99e4 JL |
80 | if (mn10300_reloc_map[i].bfd_reloc_val == code) |
81 | return &elf_mn10300_howto_table[mn10300_reloc_map[i].elf_reloc_val]; | |
efc2b064 JL |
82 | } |
83 | ||
84 | return NULL; | |
85 | } | |
86 | ||
87 | /* Set the howto pointer for an V850 ELF reloc. */ | |
88 | ||
89 | static void | |
ae1b99e4 | 90 | mn10300_info_to_howto_rel (abfd, cache_ptr, dst) |
efc2b064 JL |
91 | bfd *abfd; |
92 | arelent *cache_ptr; | |
93 | Elf32_Internal_Rel *dst; | |
94 | { | |
95 | unsigned int r_type; | |
96 | ||
97 | r_type = ELF32_R_TYPE (dst->r_info); | |
ae1b99e4 JL |
98 | BFD_ASSERT (r_type < (unsigned int) R_MN10300_MAX); |
99 | cache_ptr->howto = &elf_mn10300_howto_table[r_type]; | |
efc2b064 JL |
100 | } |
101 | ||
ae1b99e4 JL |
102 | #define TARGET_LITTLE_SYM bfd_elf32_mn10300_vec |
103 | #define TARGET_LITTLE_NAME "elf32-mn10300" | |
104 | #define ELF_ARCH bfd_arch_mn10300 | |
105 | #define ELF_MACHINE_CODE EM_CYGNUS_MN10300 | |
efc2b064 JL |
106 | #define ELF_MAXPAGESIZE 0x1000 |
107 | ||
108 | #define elf_info_to_howto 0 | |
ae1b99e4 | 109 | #define elf_info_to_howto_rel mn10300_info_to_howto_rel |
efc2b064 JL |
110 | |
111 | #include "elf32-target.h" |