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34e967a5 | 1 | /* ARC-specific header file for PLT support. |
82704155 | 2 | Copyright (C) 2016-2019 Free Software Foundation, Inc. |
34e967a5 MC |
3 | Contributed by Cupertino Miranda (cmiranda@synopsys.com). |
4 | ||
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
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 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
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. | |
16 | ||
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., 51 Franklin Street - Fifth Floor, Boston, | |
20 | MA 02110-1301, USA. */ | |
21 | ||
22 | #ifndef ARC_PLT_H | |
23 | #define ARC_PLT_H | |
24 | ||
34e967a5 MC |
25 | /* Instructions appear in memory as a sequence of half-words (16 bit); |
26 | individual half-words are represented on the target in target byte order. | |
27 | We use 'unsigned short' on the host to represent the PLT templates, | |
28 | and translate to target byte order as we copy to the target. */ | |
29 | typedef uint16_t insn_hword; | |
30 | ||
31 | enum plt_reloc_symbol | |
32 | { | |
33 | LAST_RELOC = 0, | |
34 | ||
35 | SGOT = 1, | |
36 | ||
37 | RELATIVE = (1 << 8), | |
38 | RELATIVE_INSN_32 = (1 << 9), | |
39 | RELATIVE_INSN_24 = (1 << 10), | |
40 | ||
41 | MIDDLE_ENDIAN = (1 << 11) | |
42 | }; | |
43 | ||
07d6d2b8 AM |
44 | #define IS_RELATIVE(S) ((S & (RELATIVE | RELATIVE_INSN_24 | RELATIVE_INSN_32)) != 0) |
45 | #define IS_INSN_32(S) ((S & RELATIVE_INSN_32) != 0) | |
46 | #define IS_INSN_24(S) ((S & RELATIVE_INSN_24) != 0) | |
34e967a5 | 47 | #define IS_MIDDLE_ENDIAN(S) ((S & MIDDLE_ENDIAN) != 0) |
07d6d2b8 | 48 | #define SYM_ONLY(S) (S & 0xFF) |
34e967a5 MC |
49 | |
50 | struct plt_reloc | |
51 | { | |
52 | bfd_vma offset; | |
53 | bfd_vma size; | |
54 | bfd_vma mask; | |
55 | enum plt_reloc_symbol symbol; | |
56 | bfd_vma addend; | |
57 | }; | |
58 | ||
59 | ||
60 | #define PLT_TYPE_START(NAME) NAME, | |
61 | #define PLT_TYPE_END(NAME) | |
62 | #define PLT_ENTRY(...) | |
63 | #define PLT_ELEM(...) | |
64 | #define ENTRY_RELOC(...) | |
65 | #define ELEM_RELOC(...) | |
66 | ||
67 | enum plt_types_enum | |
68 | { | |
69 | PLT_START = -1, | |
70 | #include "arc-plt.def" | |
71 | PLT_MAX | |
72 | }; | |
73 | ||
74 | #undef PLT_TYPE_START | |
75 | #undef PLT_TYPE_END | |
76 | #undef PLT_ENTRY | |
77 | #undef PLT_ELEM | |
78 | #undef ENTRY_RELOC | |
79 | #undef ELEM_RELOC | |
80 | ||
81 | typedef insn_hword insn_hword_array[]; | |
82 | ||
83 | struct plt_version_t | |
84 | { | |
85 | const insn_hword_array *entry; | |
86 | const bfd_vma entry_size; | |
87 | const insn_hword_array *elem; | |
88 | const bfd_vma elem_size; | |
89 | ||
90 | const struct plt_reloc *entry_relocs; | |
91 | const struct plt_reloc *elem_relocs; | |
92 | }; | |
93 | ||
94 | #define PLT_TYPE_START(NAME) \ | |
95 | const insn_hword NAME##_plt_entry[] = { | |
96 | #define PLT_TYPE_END(NAME) }; | |
97 | #define PLT_ENTRY(...) __VA_ARGS__, | |
98 | #define PLT_ELEM(...) | |
99 | #define ENTRY_RELOC(...) | |
100 | #define ELEM_RELOC(...) | |
101 | ||
102 | #include "arc-plt.def" | |
103 | ||
104 | #undef PLT_TYPE_START | |
105 | #undef PLT_TYPE_END | |
106 | #undef PLT_ENTRY | |
107 | #undef PLT_ELEM | |
108 | #undef ENTRY_RELOC | |
109 | #undef ELEM_RELOC | |
110 | ||
111 | #define PLT_TYPE_START(NAME) \ | |
112 | const struct plt_reloc NAME##_plt_entry_relocs[] = { | |
113 | #define PLT_TYPE_END(NAME) \ | |
114 | {0, 0, 0, LAST_RELOC, 0} \ | |
115 | }; | |
07d6d2b8 | 116 | #define PLT_ENTRY(...) |
34e967a5 MC |
117 | #define PLT_ELEM(...) |
118 | #define ENTRY_RELOC(...) { __VA_ARGS__ }, | |
119 | #define ELEM_RELOC(...) | |
120 | ||
121 | #include "arc-plt.def" | |
122 | ||
123 | #undef PLT_TYPE_START | |
124 | #undef PLT_TYPE_END | |
125 | #undef PLT_ENTRY | |
126 | #undef PLT_ELEM | |
127 | #undef ENTRY_RELOC | |
128 | #undef ELEM_RELOC | |
129 | ||
130 | ||
131 | #define PLT_TYPE_START(NAME) \ | |
132 | const insn_hword NAME##_plt_elem[] = { | |
133 | #define PLT_TYPE_END(NAME) }; | |
134 | #define PLT_ENTRY(...) | |
135 | #define PLT_ELEM(...) __VA_ARGS__, | |
136 | #define ENTRY_RELOC(...) | |
137 | #define ELEM_RELOC(...) | |
138 | ||
139 | #include "arc-plt.def" | |
140 | ||
141 | #undef PLT_TYPE_START | |
142 | #undef PLT_TYPE_END | |
143 | #undef PLT_ENTRY | |
144 | #undef PLT_ELEM | |
145 | #undef ENTRY_RELOC | |
146 | #undef ELEM_RELOC | |
147 | ||
148 | #define PLT_TYPE_START(NAME) \ | |
149 | const struct plt_reloc NAME##_plt_elem_relocs[] = { | |
150 | #define PLT_TYPE_END(NAME) \ | |
151 | {0, 0, 0, LAST_RELOC, 0} \ | |
152 | }; | |
07d6d2b8 | 153 | #define PLT_ENTRY(...) |
34e967a5 MC |
154 | #define PLT_ELEM(...) |
155 | #define ENTRY_RELOC(...) | |
156 | #define ELEM_RELOC(...) { __VA_ARGS__ }, | |
157 | ||
158 | #include "arc-plt.def" | |
159 | ||
160 | #undef PLT_TYPE_START | |
161 | #undef PLT_TYPE_END | |
162 | #undef PLT_ENTRY | |
163 | #undef PLT_ELEM | |
164 | #undef ENTRY_RELOC | |
165 | #undef ELEM_RELOC | |
166 | ||
167 | ||
168 | #define PLT_TYPE_START(NAME) \ | |
169 | { \ | |
170 | .entry = &NAME##_plt_entry, \ | |
171 | .entry_size = sizeof (NAME##_plt_entry), \ | |
172 | .elem = &NAME##_plt_elem, \ | |
173 | .elem_size = sizeof (NAME##_plt_elem), \ | |
174 | .entry_relocs = NAME##_plt_entry_relocs, \ | |
175 | .elem_relocs = NAME##_plt_elem_relocs | |
176 | #define PLT_TYPE_END(NAME) }, | |
177 | #define PLT_ENTRY(...) | |
178 | #define PLT_ELEM(...) | |
179 | #define ENTRY_RELOC(...) | |
180 | #define ELEM_RELOC(...) | |
181 | struct plt_version_t plt_versions[PLT_MAX] = { | |
182 | ||
183 | #include "arc-plt.def" | |
184 | ||
185 | }; | |
186 | #undef PLT_TYPE_START | |
187 | #undef PLT_TYPE_END | |
188 | #undef PLT_ENTRY | |
189 | #undef PLT_ELEM | |
190 | #undef ENTRY_RELOC | |
191 | #undef ELEM_RELOC | |
192 | ||
193 | ||
194 | #endif /* ARC_PLT_H */ |