Annotation of src/external/gpl3/binutils.old/dist/bfd/arc-plt.h, Revision 1.1.1.3
1.1 christos 1: /* ARC-specific header file for PLT support.
1.1.1.3 ! christos 2: Copyright (C) 2016-2020 Free Software Foundation, Inc.
1.1 christos 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:
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:
1.1.1.2 christos 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)
1.1 christos 47: #define IS_MIDDLE_ENDIAN(S) ((S & MIDDLE_ENDIAN) != 0)
1.1.1.2 christos 48: #define SYM_ONLY(S) (S & 0xFF)
1.1 christos 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: };
1.1.1.2 christos 116: #define PLT_ENTRY(...)
1.1 christos 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: };
1.1.1.2 christos 153: #define PLT_ENTRY(...)
1.1 christos 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 */
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