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1 | /* CRIS ELF support for BFD. |
1 | /* CRIS ELF support for BFD. |
2 | Copyright 2000, 2001, 2004, 2010 Free Software Foundation, Inc. |
2 | Copyright (C) 2000-2015 Free Software Foundation, Inc. |
3 | Contributed by Axis Communications AB, Lund, Sweden. |
3 | Contributed by Axis Communications AB, Lund, Sweden. |
4 | Written by Hans-Peter Nilsson. |
4 | Written by Hans-Peter Nilsson. |
5 | 5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. |
6 | This file is part of BFD, the Binary File Descriptor library. |
7 | 7 | ||
8 | This program is free software; you can redistribute it and/or modify |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by |
9 | it under the terms of the GNU General Public License as published by |
10 | the Free Software Foundation; either version 3 of the License, or |
10 | the Free Software Foundation; either version 3 of the License, or |
11 | (at your option) any later version. |
11 | (at your option) any later version. |
12 | 12 | ||
13 | This program is distributed in the hope that it will be useful, |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | GNU General Public License for more details. |
16 | GNU General Public License for more details. |
17 | 17 | ||
18 | You should have received a copy of the GNU General Public License |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software Foundation, |
19 | along with this program; if not, write to the Free Software Foundation, |
20 | Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
20 | Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
21 | 21 | ||
22 | #ifndef _ELF_CRIS_H |
22 | #ifndef _ELF_CRIS_H |
23 | #define _ELF_CRIS_H |
23 | #define _ELF_CRIS_H |
24 | 24 | ||
25 | #include "elf/reloc-macros.h" |
25 | #include "elf/reloc-macros.h" |
26 | 26 | ||
27 | /* Relocations. */ |
27 | /* Relocations. */ |
28 | START_RELOC_NUMBERS (elf_cris_reloc_type) |
28 | START_RELOC_NUMBERS (elf_cris_reloc_type) |
29 | RELOC_NUMBER (R_CRIS_NONE, 0) |
29 | RELOC_NUMBER (R_CRIS_NONE, 0) |
30 | RELOC_NUMBER (R_CRIS_8, 1) |
30 | RELOC_NUMBER (R_CRIS_8, 1) |
31 | RELOC_NUMBER (R_CRIS_16, 2) |
31 | RELOC_NUMBER (R_CRIS_16, 2) |
32 | RELOC_NUMBER (R_CRIS_32, 3) |
32 | RELOC_NUMBER (R_CRIS_32, 3) |
33 | 33 | ||
34 | /* The "PC" position is the location right after the relocation. */ |
34 | /* The "PC" position is the location right after the relocation. */ |
35 | RELOC_NUMBER (R_CRIS_8_PCREL, 4) |
35 | RELOC_NUMBER (R_CRIS_8_PCREL, 4) |
36 | RELOC_NUMBER (R_CRIS_16_PCREL, 5) |
36 | RELOC_NUMBER (R_CRIS_16_PCREL, 5) |
37 | RELOC_NUMBER (R_CRIS_32_PCREL, 6) |
37 | RELOC_NUMBER (R_CRIS_32_PCREL, 6) |
38 | 38 | ||
39 | RELOC_NUMBER (R_CRIS_GNU_VTINHERIT, 7) |
39 | RELOC_NUMBER (R_CRIS_GNU_VTINHERIT, 7) |
40 | RELOC_NUMBER (R_CRIS_GNU_VTENTRY, 8) |
40 | RELOC_NUMBER (R_CRIS_GNU_VTENTRY, 8) |
41 | 41 | ||
42 | /* Copy contents at dynlinking. Generated by the linker. |
42 | /* Copy contents at dynlinking. Generated by the linker. |
43 | The BFD equivalent is BFD_RELOC_CRIS_COPY. */ |
43 | The BFD equivalent is BFD_RELOC_CRIS_COPY. */ |
44 | RELOC_NUMBER (R_CRIS_COPY, 9) |
44 | RELOC_NUMBER (R_CRIS_COPY, 9) |
45 | 45 | ||
46 | /* Create GOT entry. Generated by the linker. |
46 | /* Create GOT entry. Generated by the linker. |
47 | The BFD equivalent is BFD_RELOC_CRIS_GLOB_DAT. */ |
47 | The BFD equivalent is BFD_RELOC_CRIS_GLOB_DAT. */ |
48 | RELOC_NUMBER (R_CRIS_GLOB_DAT, 10) |
48 | RELOC_NUMBER (R_CRIS_GLOB_DAT, 10) |
49 | 49 | ||
50 | /* Create PLT entry. Generated by the linker. |
50 | /* Create PLT entry. Generated by the linker. |
51 | The BFD equivalent is BFD_RELOC_CRIS_JUMP_SLOT. */ |
51 | The BFD equivalent is BFD_RELOC_CRIS_JUMP_SLOT. */ |
52 | RELOC_NUMBER (R_CRIS_JUMP_SLOT, 11) |
52 | RELOC_NUMBER (R_CRIS_JUMP_SLOT, 11) |
53 | 53 | ||
54 | /* Adjust by program base. Generated by the linker. |
54 | /* Adjust by program base. Generated by the linker. |
55 | The BFD equivalent is BFD_RELOC_CRIS_RELATIVE. */ |
55 | The BFD equivalent is BFD_RELOC_CRIS_RELATIVE. */ |
56 | RELOC_NUMBER (R_CRIS_RELATIVE, 12) |
56 | RELOC_NUMBER (R_CRIS_RELATIVE, 12) |
57 | 57 | ||
58 | /* A 16-bit offset to entry in GOT and request to create GOT entry for |
58 | /* A 16-bit offset to entry in GOT and request to create GOT entry for |
59 | that symbol. |
59 | that symbol. |
60 | The BFD equivalent is BFD_RELOC_CRIS_16_GOT. */ |
60 | The BFD equivalent is BFD_RELOC_CRIS_16_GOT. */ |
61 | RELOC_NUMBER (R_CRIS_16_GOT, 13) |
61 | RELOC_NUMBER (R_CRIS_16_GOT, 13) |
62 | 62 | ||
63 | /* A 32-bit offset to entry in GOT and request to create GOT entry for |
63 | /* A 32-bit offset to entry in GOT and request to create GOT entry for |
64 | that symbol. |
64 | that symbol. |
65 | The BFD equivalent is BFD_RELOC_CRIS_32_GOT. */ |
65 | The BFD equivalent is BFD_RELOC_CRIS_32_GOT. */ |
66 | RELOC_NUMBER (R_CRIS_32_GOT, 14) |
66 | RELOC_NUMBER (R_CRIS_32_GOT, 14) |
67 | 67 | ||
68 | /* A 16-bit offset to entry in PLT part of GOT and request to create PLT |
68 | /* A 16-bit offset to entry in PLT part of GOT and request to create PLT |
69 | entry for that symbol. |
69 | entry for that symbol. |
70 | The BFD equivalent is BFD_RELOC_CRIS_16_GOTPLT. */ |
70 | The BFD equivalent is BFD_RELOC_CRIS_16_GOTPLT. */ |
71 | RELOC_NUMBER (R_CRIS_16_GOTPLT, 15) |
71 | RELOC_NUMBER (R_CRIS_16_GOTPLT, 15) |
72 | 72 | ||
73 | /* A 32-bit offset to entry in PLT part of GOT and request to create PLT |
73 | /* A 32-bit offset to entry in PLT part of GOT and request to create PLT |
74 | entry for that symbol. |
74 | entry for that symbol. |
75 | The BFD equivalent is BFD_RELOC_CRIS_32_GOTPLT. */ |
75 | The BFD equivalent is BFD_RELOC_CRIS_32_GOTPLT. */ |
76 | RELOC_NUMBER (R_CRIS_32_GOTPLT, 16) |
76 | RELOC_NUMBER (R_CRIS_32_GOTPLT, 16) |
77 | 77 | ||
78 | /* A 32-bit offset from GOT to (local) symbol: no GOT entry should be |
78 | /* A 32-bit offset from GOT to (local) symbol: no GOT entry should be |
79 | necessary. |
79 | necessary. |
80 | The BFD equivalent is BFD_RELOC_CRIS_32_GOTREL. */ |
80 | The BFD equivalent is BFD_RELOC_CRIS_32_GOTREL. */ |
81 | RELOC_NUMBER (R_CRIS_32_GOTREL, 17) |
81 | RELOC_NUMBER (R_CRIS_32_GOTREL, 17) |
82 | 82 | ||
83 | /* A 32-bit offset from GOT to entry for this symbol in PLT and request |
83 | /* A 32-bit offset from GOT to entry for this symbol in PLT and request |
84 | to create PLT entry for symbol. |
84 | to create PLT entry for symbol. |
85 | The BFD equivalent is BFD_RELOC_CRIS_32_GOTREL. */ |
85 | The BFD equivalent is BFD_RELOC_CRIS_32_GOTREL. */ |
86 | RELOC_NUMBER (R_CRIS_32_PLT_GOTREL, 18) |
86 | RELOC_NUMBER (R_CRIS_32_PLT_GOTREL, 18) |
87 | 87 | ||
88 | /* A 32-bit offset from location after this relocation (addend specifies |
88 | /* A 32-bit offset from location after this relocation (addend specifies |
89 | offset) to entry for this symbol in PLT and request to create PLT |
89 | offset) to entry for this symbol in PLT and request to create PLT |
90 | entry for symbol. |
90 | entry for symbol. |
91 | The BFD equivalent is BFD_RELOC_CRIS_32_PLT_PCREL. */ |
91 | The BFD equivalent is BFD_RELOC_CRIS_32_PLT_PCREL. */ |
92 | RELOC_NUMBER (R_CRIS_32_PLT_PCREL, 19) |
92 | RELOC_NUMBER (R_CRIS_32_PLT_PCREL, 19) |
93 | 93 | ||
94 | /* An assembler-generated-only relocation, instructing the linker to |
94 | /* An assembler-generated-only relocation, instructing the linker to |
95 | reserve two GOT slots, carrying the R_CRIS_DTP relocation for the |
95 | reserve two GOT slots, carrying the R_CRIS_DTP relocation for the |
96 | symbol (pointing to the first slot, the relocation fills in |
96 | symbol (pointing to the first slot, the relocation fills in |
97 | both). The value is a 32-bit-value, relative to the start of the |
97 | both). The value is a 32-bit-value, relative to the start of the |
98 | GOT. Assembly syntax: "sym:GDGOTREL". */ |
98 | GOT. Assembly syntax: "sym:GDGOTREL". */ |
99 | RELOC_NUMBER (R_CRIS_32_GOT_GD, 20) |
99 | RELOC_NUMBER (R_CRIS_32_GOT_GD, 20) |
100 | 100 | ||
101 | /* Similar to R_CRIS_32_GOT_GD, but the value is a 16-bit unsigned |
101 | /* Similar to R_CRIS_32_GOT_GD, but the value is a 16-bit unsigned |
102 | number, limiting access to 65536/4 global symbols per module (or |
102 | number, limiting access to 65536/4 global symbols per module (or |
103 | 65536/8 thread variables; loosely speaking G*4+T*8 < 65536, where |
103 | 65536/8 thread variables; loosely speaking G*4+T*8 < 65536, where |
104 | T is the number of thread variables and G is the number of other |
104 | T is the number of thread variables and G is the number of other |
105 | external global variables and functions). Assembly syntax: |
105 | external global variables and functions). Assembly syntax: |
106 | "sym:GDGOTREL16". */ |
106 | "sym:GDGOTREL16". */ |
107 | RELOC_NUMBER (R_CRIS_16_GOT_GD, 21) |
107 | RELOC_NUMBER (R_CRIS_16_GOT_GD, 21) |
108 | 108 | ||
109 | /* Similar to R_CRIS_32_GOT_GD, but the value is the absolute |
109 | /* Similar to R_CRIS_32_GOT_GD, but the value is the absolute |
110 | address of the GOT entry. Disallowed in DSOs created with |
110 | address of the GOT entry. Disallowed in DSOs created with |
111 | -shared. Assembly syntax: "sym:GD". */ |
111 | -shared. Assembly syntax: "sym:GD". */ |
112 | RELOC_NUMBER (R_CRIS_32_GD, 22) |
112 | RELOC_NUMBER (R_CRIS_32_GD, 22) |
113 | 113 | ||
114 | /* A linker-generated-only relocation, instructing the dynamic |
114 | /* A linker-generated-only relocation, instructing the dynamic |
115 | linker to fill in the module ID and module-relative-TLS-block |
115 | linker to fill in the module ID and module-relative-TLS-block |
116 | offset of the symbol in question, used for GOT entries. Note |
116 | offset of the symbol in question, used for GOT entries. Note |
117 | that this relocation instructs to fill in two 32-bit values. */ |
117 | that this relocation instructs to fill in two 32-bit values. */ |
118 | RELOC_NUMBER (R_CRIS_DTP, 23) |
118 | RELOC_NUMBER (R_CRIS_DTP, 23) |
119 | 119 | ||
120 | /* An assembler-generated-only relocation, instructing the linker to |
120 | /* An assembler-generated-only relocation, instructing the linker to |
121 | reserve the first two GOT slots, and attach the R_CRIS_DTPMOD |
121 | reserve the first two GOT slots, and attach the R_CRIS_DTPMOD |
122 | relocation(*) for the module to the first slot, the second |
122 | relocation(*) for the module to the first slot, the second |
123 | containing zero. The value is 32 bits, the offset from the start |
123 | containing zero. The value is 32 bits, the offset from the start |
124 | of the TLS block of the module to the thread-local symbol |
124 | of the TLS block of the module to the thread-local symbol |
125 | mentioned in the relocation. This relocation must only be applied |
125 | mentioned in the relocation. This relocation must only be applied |
126 | to module-local symbols. Assembly syntax: "expr:DTPREL". */ |
126 | to module-local symbols. Assembly syntax: "expr:DTPREL". */ |
127 | RELOC_NUMBER (R_CRIS_32_DTPREL, 24) |
127 | RELOC_NUMBER (R_CRIS_32_DTPREL, 24) |
128 | 128 | ||
129 | /* Similar to R_CRIS_32_DTPREL, but the value is a 16-bit signed |
129 | /* Similar to R_CRIS_32_DTPREL, but the value is a 16-bit signed |
130 | number, limiting the size of thread-variables of the DSO to 32768 |
130 | number, limiting the size of thread-variables of the DSO to 32768 |
131 | bytes. (Note: matches both model 1 and 2 and allows use of addo.w |
131 | bytes. (Note: matches both model 1 and 2 and allows use of addo.w |
132 | as the instruction where this relocation is used.) Assembly |
132 | as the instruction where this relocation is used.) Assembly |
133 | syntax: "expr:DTPREL16". */ |
133 | syntax: "expr:DTPREL16". */ |
134 | RELOC_NUMBER (R_CRIS_16_DTPREL, 25) |
134 | RELOC_NUMBER (R_CRIS_16_DTPREL, 25) |
135 | 135 | ||
136 | /* An assembler-generated-only relocation, instructing the linker to |
136 | /* An assembler-generated-only relocation, instructing the linker to |
137 | reserve a GOT slot and attach the R_CRIS_32_TPREL relocation for |
137 | reserve a GOT slot and attach the R_CRIS_32_TPREL relocation for |
138 | the symbol in question. The value is 32 bits, which is the |
138 | the symbol in question. The value is 32 bits, which is the |
139 | GOT-relative offset of the slot. Assembly syntax: |
139 | GOT-relative offset of the slot. Assembly syntax: |
140 | "sym:TPOFFGOT". */ |
140 | "sym:TPOFFGOT". */ |
141 | RELOC_NUMBER (R_CRIS_32_GOT_TPREL, 26) |
141 | RELOC_NUMBER (R_CRIS_32_GOT_TPREL, 26) |
142 | 142 | ||
143 | /* Similar to R_CRIS_32_TPREL, but the value is a 16-bit positive |
143 | /* Similar to R_CRIS_32_TPREL, but the value is a 16-bit positive |
144 | number, limiting the number of thread- and global variables of |
144 | number, limiting the number of thread- and global variables of |
145 | the DSO to 32768/4. Assembly syntax: "sym:TPOFFGOT16". */ |
145 | the DSO to 32768/4. Assembly syntax: "sym:TPOFFGOT16". */ |
146 | RELOC_NUMBER (R_CRIS_16_GOT_TPREL, 27) |
146 | RELOC_NUMBER (R_CRIS_16_GOT_TPREL, 27) |
147 | 147 | ||
148 | /* An assembler- and linker-generated relocation, instructing to |
148 | /* An assembler- and linker-generated relocation, instructing to |
149 | resolve the symbol in question yielding the TLS offset of the |
149 | resolve the symbol in question yielding the TLS offset of the |
150 | thread variable, relative to the global TLS block. Not allowed |
150 | thread variable, relative to the global TLS block. Not allowed |
151 | as input when generating a DSO. Assembly syntax: |
151 | as input when generating a DSO. Assembly syntax: |
152 | "expr:TPOFF". */ |
152 | "expr:TPOFF". */ |
153 | RELOC_NUMBER (R_CRIS_32_TPREL, 28) |
153 | RELOC_NUMBER (R_CRIS_32_TPREL, 28) |
154 | 154 | ||
155 | /* Similar to R_CRIS_32_TPREL, but only applicable to executables |
155 | /* Similar to R_CRIS_32_TPREL, but only applicable to executables |
156 | compiled with -msmall-tls. Not allowed in a DSO. The value is a |
156 | compiled with -msmall-tls. Not allowed in a DSO. The value is a |
157 | 16-bit signed number, limiting the size of thread-variables of |
157 | 16-bit signed number, limiting the size of thread-variables of |
158 | the executable to 32768 bytes. (Note: being signed makes it match |
158 | the executable to 32768 bytes. (Note: being signed makes it match |
159 | both model 1 and 2 and allows use of addo.w as the instruction |
159 | both model 1 and 2 and allows use of addo.w as the instruction |
160 | where this relocation is applied.) Assembly syntax: |
160 | where this relocation is applied.) Assembly syntax: |
161 | "expr:TPOFF16". */ |
161 | "expr:TPOFF16". */ |
162 | RELOC_NUMBER (R_CRIS_16_TPREL, 29) |
162 | RELOC_NUMBER (R_CRIS_16_TPREL, 29) |
163 | 163 | ||
164 | /* A linker-generated-only relocation, instructing the dynamic |
164 | /* A linker-generated-only relocation, instructing the dynamic |
165 | linker to fill in the current module ID, used for GOT entries |
165 | linker to fill in the current module ID, used for GOT entries |
166 | (usually the fourth one). */ |
166 | (usually the fourth one). */ |
167 | RELOC_NUMBER (R_CRIS_DTPMOD, 30) |
167 | RELOC_NUMBER (R_CRIS_DTPMOD, 30) |
168 | 168 | ||
169 | /* Similar to R_CRIS_32_GOT_TPREL, but the value is the absolute |
169 | /* Similar to R_CRIS_32_GOT_TPREL, but the value is the absolute |
170 | address of the GOT entry. Disallowed in DSOs created with |
170 | address of the GOT entry. Disallowed in DSOs created with |
171 | -shared. Assembly syntax: "sym:IE". */ |
171 | -shared. Assembly syntax: "sym:IE". */ |
172 | RELOC_NUMBER (R_CRIS_32_IE, 31) |
172 | RELOC_NUMBER (R_CRIS_32_IE, 31) |
173 | 173 | ||
174 | /* No other relocs must be visible outside the assembler. */ |
174 | /* No other relocs must be visible outside the assembler. */ |
175 | 175 | ||
176 | END_RELOC_NUMBERS (R_CRIS_max) |
176 | END_RELOC_NUMBERS (R_CRIS_max) |
177 | 177 | ||
178 | /* User symbols in this file have a leading underscore. */ |
178 | /* User symbols in this file have a leading underscore. */ |
179 | #define EF_CRIS_UNDERSCORE 0x00000001 |
179 | #define EF_CRIS_UNDERSCORE 0x00000001 |
180 | 180 | ||
181 | /* This is a mask for different incompatible machine variants. */ |
181 | /* This is a mask for different incompatible machine variants. */ |
182 | #define EF_CRIS_VARIANT_MASK 0x0000000e |
182 | #define EF_CRIS_VARIANT_MASK 0x0000000e |
183 | 183 | ||
184 | /* Variant 0; may contain v0..10 object. */ |
184 | /* Variant 0; may contain v0..10 object. */ |
185 | #define EF_CRIS_VARIANT_ANY_V0_V10 0x00000000 |
185 | #define EF_CRIS_VARIANT_ANY_V0_V10 0x00000000 |
186 | 186 | ||
187 | /* Variant 1; contains v32 object. */ |
187 | /* Variant 1; contains v32 object. */ |
188 | #define EF_CRIS_VARIANT_V32 0x00000002 |
188 | #define EF_CRIS_VARIANT_V32 0x00000002 |
189 | 189 | ||
190 | /* Variant 2; contains object compatible with v32 and v10. */ |
190 | /* Variant 2; contains object compatible with v32 and v10. */ |
191 | #define EF_CRIS_VARIANT_COMMON_V10_V32 0x00000004 |
191 | #define EF_CRIS_VARIANT_COMMON_V10_V32 0x00000004 |
192 | 192 | ||
193 | #endif /* _ELF_CRIS_H */> |
193 | #endif /* _ELF_CRIS_H */> |