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40b36596 | 1 | /* TI C6X ELF support for BFD. |
b3adc24a | 2 | Copyright (C) 2010-2020 Free Software Foundation, Inc. |
40b36596 JM |
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 3 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., 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
20 | ||
21 | #ifndef _ELF_TIC6X_H | |
22 | #define _ELF_TIC6X_H | |
23 | ||
24 | #include "elf/reloc-macros.h" | |
25 | ||
26 | /* Relocation types. */ | |
27 | START_RELOC_NUMBERS (elf_tic6x_reloc_type) | |
28 | RELOC_NUMBER (R_C6000_NONE, 0) | |
29 | RELOC_NUMBER (R_C6000_ABS32, 1) | |
30 | RELOC_NUMBER (R_C6000_ABS16, 2) | |
31 | RELOC_NUMBER (R_C6000_ABS8, 3) | |
32 | RELOC_NUMBER (R_C6000_PCR_S21, 4) | |
33 | RELOC_NUMBER (R_C6000_PCR_S12, 5) | |
34 | RELOC_NUMBER (R_C6000_PCR_S10, 6) | |
35 | RELOC_NUMBER (R_C6000_PCR_S7, 7) | |
36 | RELOC_NUMBER (R_C6000_ABS_S16, 8) | |
37 | RELOC_NUMBER (R_C6000_ABS_L16, 9) | |
38 | RELOC_NUMBER (R_C6000_ABS_H16, 10) | |
39 | RELOC_NUMBER (R_C6000_SBR_U15_B, 11) | |
40 | RELOC_NUMBER (R_C6000_SBR_U15_H, 12) | |
41 | RELOC_NUMBER (R_C6000_SBR_U15_W, 13) | |
42 | RELOC_NUMBER (R_C6000_SBR_S16, 14) | |
43 | RELOC_NUMBER (R_C6000_SBR_L16_B, 15) | |
44 | RELOC_NUMBER (R_C6000_SBR_L16_H, 16) | |
45 | RELOC_NUMBER (R_C6000_SBR_L16_W, 17) | |
46 | RELOC_NUMBER (R_C6000_SBR_H16_B, 18) | |
47 | RELOC_NUMBER (R_C6000_SBR_H16_H, 19) | |
48 | RELOC_NUMBER (R_C6000_SBR_H16_W, 20) | |
49 | RELOC_NUMBER (R_C6000_SBR_GOT_U15_W, 21) | |
50 | RELOC_NUMBER (R_C6000_SBR_GOT_L16_W, 22) | |
51 | RELOC_NUMBER (R_C6000_SBR_GOT_H16_W, 23) | |
52 | RELOC_NUMBER (R_C6000_DSBT_INDEX, 24) | |
53 | RELOC_NUMBER (R_C6000_PREL31, 25) | |
54 | RELOC_NUMBER (R_C6000_COPY, 26) | |
ac145307 BS |
55 | RELOC_NUMBER (R_C6000_JUMP_SLOT, 27) |
56 | RELOC_NUMBER (R_C6000_EHTYPE, 28) | |
57 | RELOC_NUMBER (R_C6000_PCR_H16, 29) | |
58 | RELOC_NUMBER (R_C6000_PCR_L16, 30) | |
40b36596 JM |
59 | RELOC_NUMBER (R_C6000_ALIGN, 253) |
60 | RELOC_NUMBER (R_C6000_FPHEAD, 254) | |
61 | RELOC_NUMBER (R_C6000_NOCMP, 255) | |
62 | END_RELOC_NUMBERS (R_TIC6X_max) | |
63 | ||
64 | /* Processor-specific flags. */ | |
65 | ||
66 | /* File contains static relocation information. */ | |
67 | #define EF_C6000_REL 0x1 | |
68 | ||
69 | /* Processor-specific section types. */ | |
70 | ||
71 | /* Unwind function table for stack unwinding. */ | |
72 | #define SHT_C6000_UNWIND 0x70000001 | |
73 | ||
74 | /* DLL dynamic linking pre-emption map. */ | |
75 | #define SHT_C6000_PREEMPTMAP 0x70000002 | |
76 | ||
77 | /* Object file compatibility attributes. */ | |
78 | #define SHT_C6000_ATTRIBUTES 0x70000003 | |
79 | ||
80 | /* Intermediate code for link-time optimization. */ | |
81 | #define SHT_TI_ICODE 0x7F000000 | |
82 | ||
83 | /* Symbolic cross reference information. */ | |
84 | #define SHT_TI_XREF 0x7F000001 | |
85 | ||
86 | /* Reserved. */ | |
87 | #define SHT_TI_HANDLER 0x7F000002 | |
88 | ||
89 | /* Compressed data for initializing C variables. */ | |
90 | #define SHT_TI_INITINFO 0x7F000003 | |
91 | ||
92 | /* Extended program header attributes. */ | |
93 | #define SHT_TI_PHATTRS 0x7F000004 | |
94 | ||
ac145307 BS |
95 | /* Processor specific section indices. These sections do not actually |
96 | exist. Symbols with a st_shndx field corresponding to one of these | |
97 | values have a special meaning. */ | |
98 | ||
99 | /* Small data area common symbol. */ | |
100 | #define SHN_TIC6X_SCOMMON SHN_LORESERVE | |
101 | ||
40b36596 JM |
102 | /* Processor-specific segment types. */ |
103 | ||
104 | /* Extended Segment Attributes. */ | |
105 | #define PT_C6000_PHATTR 0x70000000 | |
106 | ||
107 | /* Processor-specific dynamic tags. */ | |
108 | ||
109 | /* Undocumented. */ | |
110 | #define DT_C6000_GSYM_OFFSET 0x6000000D | |
111 | ||
112 | /* Undocumented. */ | |
113 | #define DT_C6000_GSTR_OFFSET 0x6000000F | |
114 | ||
115 | /* Statically linked base address of data segment. */ | |
116 | #define DT_C6000_DSBT_BASE 0x70000000 | |
117 | ||
118 | /* Number of entries in this module's DSBT. */ | |
119 | #define DT_C6000_DSBT_SIZE 0x70000001 | |
120 | ||
121 | /* Undocumented. */ | |
122 | #define DT_C6000_PREEMPTMAP 0x70000002 | |
123 | ||
124 | /* The hard-coded DSBT index for this module, if any. */ | |
125 | #define DT_C6000_DSBT_INDEX 0x70000003 | |
126 | ||
127 | /* Extended program header attributes. */ | |
128 | ||
129 | /* Terminate a segment. */ | |
130 | #define PHA_NULL 0x0 | |
131 | ||
132 | /* Segment's address bound to the final address. */ | |
133 | #define PHA_BOUND 0x1 | |
134 | ||
135 | /* Segment cannot be further relocated. */ | |
136 | #define PHA_READONLY 0x2 | |
137 | ||
59e6276b JM |
138 | /* Build attributes. */ |
139 | enum | |
140 | { | |
141 | #define TAG(tag, value) tag = value, | |
142 | #include "elf/tic6x-attrs.h" | |
143 | #undef TAG | |
144 | Tag_C6XABI_last | |
145 | }; | |
146 | ||
75fa6dc1 JM |
147 | /* Values for Tag_ISA. GNU-specific names; the ABI does not specify |
148 | names for these values. */ | |
59e6276b JM |
149 | enum |
150 | { | |
75fa6dc1 JM |
151 | C6XABI_Tag_ISA_none = 0, |
152 | C6XABI_Tag_ISA_C62X = 1, | |
153 | C6XABI_Tag_ISA_C67X = 3, | |
154 | C6XABI_Tag_ISA_C67XP = 4, | |
155 | C6XABI_Tag_ISA_C64X = 6, | |
156 | C6XABI_Tag_ISA_C64XP = 7, | |
157 | C6XABI_Tag_ISA_C674X = 8 | |
59e6276b JM |
158 | }; |
159 | ||
1bce6bd8 PB |
160 | /* Special section names. */ |
161 | #define ELF_STRING_C6000_unwind ".c6xabi.exidx" | |
162 | #define ELF_STRING_C6000_unwind_info ".c6xabi.extab" | |
163 | #define ELF_STRING_C6000_unwind_once ".gnu.linkonce.c6xabi.exidx." | |
164 | #define ELF_STRING_C6000_unwind_info_once ".gnu.linkonce.c6xabi.extab." | |
165 | ||
40b36596 | 166 | #endif /* _ELF_TIC6X_H */ |