Commit | Line | Data |
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252b5132 | 1 | /* PPC ELF support for BFD. |
2571583a | 2 | Copyright (C) 1995-2017 Free Software Foundation, Inc. |
252b5132 | 3 | |
e4e42b45 NC |
4 | By Michael Meissner, Cygnus Support, <meissner@cygnus.com>, |
5 | from information in the System V Application Binary Interface, | |
6 | PowerPC Processor Supplement and the PowerPC Embedded Application | |
7 | Binary Interface (eabi). | |
252b5132 | 8 | |
e4e42b45 | 9 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 10 | |
e4e42b45 NC |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 3 of the License, or | |
14 | (at your option) any later version. | |
252b5132 | 15 | |
e4e42b45 NC |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
252b5132 | 20 | |
e4e42b45 NC |
21 | You should have received a copy of the GNU General Public License |
22 | along with this program; if not, write to the Free Software | |
23 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
24 | MA 02110-1301, USA. */ | |
252b5132 RH |
25 | |
26 | /* This file holds definitions specific to the PPC ELF ABI. Note | |
27 | that most of this is not actually implemented by BFD. */ | |
28 | ||
29 | #ifndef _ELF_PPC_H | |
30 | #define _ELF_PPC_H | |
31 | ||
32 | #include "elf/reloc-macros.h" | |
33 | ||
34 | /* Relocations. */ | |
35 | START_RELOC_NUMBERS (elf_ppc_reloc_type) | |
5255ffd3 AM |
36 | RELOC_NUMBER (R_PPC_NONE, 0) |
37 | RELOC_NUMBER (R_PPC_ADDR32, 1) | |
38 | RELOC_NUMBER (R_PPC_ADDR24, 2) | |
39 | RELOC_NUMBER (R_PPC_ADDR16, 3) | |
40 | RELOC_NUMBER (R_PPC_ADDR16_LO, 4) | |
41 | RELOC_NUMBER (R_PPC_ADDR16_HI, 5) | |
42 | RELOC_NUMBER (R_PPC_ADDR16_HA, 6) | |
43 | RELOC_NUMBER (R_PPC_ADDR14, 7) | |
44 | RELOC_NUMBER (R_PPC_ADDR14_BRTAKEN, 8) | |
45 | RELOC_NUMBER (R_PPC_ADDR14_BRNTAKEN, 9) | |
46 | RELOC_NUMBER (R_PPC_REL24, 10) | |
47 | RELOC_NUMBER (R_PPC_REL14, 11) | |
48 | RELOC_NUMBER (R_PPC_REL14_BRTAKEN, 12) | |
49 | RELOC_NUMBER (R_PPC_REL14_BRNTAKEN, 13) | |
50 | RELOC_NUMBER (R_PPC_GOT16, 14) | |
51 | RELOC_NUMBER (R_PPC_GOT16_LO, 15) | |
52 | RELOC_NUMBER (R_PPC_GOT16_HI, 16) | |
53 | RELOC_NUMBER (R_PPC_GOT16_HA, 17) | |
54 | RELOC_NUMBER (R_PPC_PLTREL24, 18) | |
55 | RELOC_NUMBER (R_PPC_COPY, 19) | |
56 | RELOC_NUMBER (R_PPC_GLOB_DAT, 20) | |
57 | RELOC_NUMBER (R_PPC_JMP_SLOT, 21) | |
58 | RELOC_NUMBER (R_PPC_RELATIVE, 22) | |
59 | RELOC_NUMBER (R_PPC_LOCAL24PC, 23) | |
60 | RELOC_NUMBER (R_PPC_UADDR32, 24) | |
61 | RELOC_NUMBER (R_PPC_UADDR16, 25) | |
62 | RELOC_NUMBER (R_PPC_REL32, 26) | |
63 | RELOC_NUMBER (R_PPC_PLT32, 27) | |
64 | RELOC_NUMBER (R_PPC_PLTREL32, 28) | |
65 | RELOC_NUMBER (R_PPC_PLT16_LO, 29) | |
66 | RELOC_NUMBER (R_PPC_PLT16_HI, 30) | |
67 | RELOC_NUMBER (R_PPC_PLT16_HA, 31) | |
68 | RELOC_NUMBER (R_PPC_SDAREL16, 32) | |
69 | RELOC_NUMBER (R_PPC_SECTOFF, 33) | |
70 | RELOC_NUMBER (R_PPC_SECTOFF_LO, 34) | |
71 | RELOC_NUMBER (R_PPC_SECTOFF_HI, 35) | |
72 | RELOC_NUMBER (R_PPC_SECTOFF_HA, 36) | |
73 | RELOC_NUMBER (R_PPC_ADDR30, 37) | |
74 | ||
e054468f | 75 | #ifndef RELOC_MACROS_GEN_FUNC |
7ba71655 AM |
76 | /* Relocations only used internally by ld. If you need to use these |
77 | reloc numbers, you can change them to some other unused value | |
78 | without affecting the ABI. They will never appear in object files. */ | |
32af9f6e AM |
79 | RELOC_NUMBER (R_PPC_RELAX, 48) |
80 | RELOC_NUMBER (R_PPC_RELAX_PLT, 49) | |
81 | RELOC_NUMBER (R_PPC_RELAX_PLTREL24, 50) | |
7ba71655 AM |
82 | /* Reloc only used internally by gas. As above, value is unimportant. */ |
83 | RELOC_NUMBER (R_PPC_16DX_HA, 51) | |
e054468f AM |
84 | #endif |
85 | ||
5255ffd3 AM |
86 | /* Relocs added to support TLS. */ |
87 | RELOC_NUMBER (R_PPC_TLS, 67) | |
94856796 | 88 | RELOC_NUMBER (R_PPC_DTPMOD32, 68) |
5255ffd3 AM |
89 | RELOC_NUMBER (R_PPC_TPREL16, 69) |
90 | RELOC_NUMBER (R_PPC_TPREL16_LO, 70) | |
91 | RELOC_NUMBER (R_PPC_TPREL16_HI, 71) | |
92 | RELOC_NUMBER (R_PPC_TPREL16_HA, 72) | |
94856796 | 93 | RELOC_NUMBER (R_PPC_TPREL32, 73) |
5255ffd3 AM |
94 | RELOC_NUMBER (R_PPC_DTPREL16, 74) |
95 | RELOC_NUMBER (R_PPC_DTPREL16_LO, 75) | |
96 | RELOC_NUMBER (R_PPC_DTPREL16_HI, 76) | |
97 | RELOC_NUMBER (R_PPC_DTPREL16_HA, 77) | |
94856796 | 98 | RELOC_NUMBER (R_PPC_DTPREL32, 78) |
5255ffd3 AM |
99 | RELOC_NUMBER (R_PPC_GOT_TLSGD16, 79) |
100 | RELOC_NUMBER (R_PPC_GOT_TLSGD16_LO, 80) | |
101 | RELOC_NUMBER (R_PPC_GOT_TLSGD16_HI, 81) | |
102 | RELOC_NUMBER (R_PPC_GOT_TLSGD16_HA, 82) | |
103 | RELOC_NUMBER (R_PPC_GOT_TLSLD16, 83) | |
104 | RELOC_NUMBER (R_PPC_GOT_TLSLD16_LO, 84) | |
105 | RELOC_NUMBER (R_PPC_GOT_TLSLD16_HI, 85) | |
106 | RELOC_NUMBER (R_PPC_GOT_TLSLD16_HA, 86) | |
107 | RELOC_NUMBER (R_PPC_GOT_TPREL16, 87) | |
108 | RELOC_NUMBER (R_PPC_GOT_TPREL16_LO, 88) | |
109 | RELOC_NUMBER (R_PPC_GOT_TPREL16_HI, 89) | |
110 | RELOC_NUMBER (R_PPC_GOT_TPREL16_HA, 90) | |
111 | RELOC_NUMBER (R_PPC_GOT_DTPREL16, 91) | |
112 | RELOC_NUMBER (R_PPC_GOT_DTPREL16_LO, 92) | |
113 | RELOC_NUMBER (R_PPC_GOT_DTPREL16_HI, 93) | |
114 | RELOC_NUMBER (R_PPC_GOT_DTPREL16_HA, 94) | |
727fc41e AM |
115 | RELOC_NUMBER (R_PPC_TLSGD, 95) |
116 | RELOC_NUMBER (R_PPC_TLSLD, 96) | |
abd0e9cb | 117 | |
252b5132 RH |
118 | /* The remaining relocs are from the Embedded ELF ABI, and are not |
119 | in the SVR4 ELF ABI. */ | |
5255ffd3 AM |
120 | RELOC_NUMBER (R_PPC_EMB_NADDR32, 101) |
121 | RELOC_NUMBER (R_PPC_EMB_NADDR16, 102) | |
122 | RELOC_NUMBER (R_PPC_EMB_NADDR16_LO, 103) | |
123 | RELOC_NUMBER (R_PPC_EMB_NADDR16_HI, 104) | |
124 | RELOC_NUMBER (R_PPC_EMB_NADDR16_HA, 105) | |
125 | RELOC_NUMBER (R_PPC_EMB_SDAI16, 106) | |
126 | RELOC_NUMBER (R_PPC_EMB_SDA2I16, 107) | |
127 | RELOC_NUMBER (R_PPC_EMB_SDA2REL, 108) | |
128 | RELOC_NUMBER (R_PPC_EMB_SDA21, 109) | |
129 | RELOC_NUMBER (R_PPC_EMB_MRKREF, 110) | |
130 | RELOC_NUMBER (R_PPC_EMB_RELSEC16, 111) | |
131 | RELOC_NUMBER (R_PPC_EMB_RELST_LO, 112) | |
132 | RELOC_NUMBER (R_PPC_EMB_RELST_HI, 113) | |
133 | RELOC_NUMBER (R_PPC_EMB_RELST_HA, 114) | |
134 | RELOC_NUMBER (R_PPC_EMB_BIT_FLD, 115) | |
135 | RELOC_NUMBER (R_PPC_EMB_RELSDA, 116) | |
252b5132 | 136 | |
b9c361e0 JL |
137 | /* PowerPC VLE relocations. */ |
138 | RELOC_NUMBER (R_PPC_VLE_REL8, 216) | |
139 | RELOC_NUMBER (R_PPC_VLE_REL15, 217) | |
140 | RELOC_NUMBER (R_PPC_VLE_REL24, 218) | |
141 | RELOC_NUMBER (R_PPC_VLE_LO16A, 219) | |
142 | RELOC_NUMBER (R_PPC_VLE_LO16D, 220) | |
143 | RELOC_NUMBER (R_PPC_VLE_HI16A, 221) | |
144 | RELOC_NUMBER (R_PPC_VLE_HI16D, 222) | |
145 | RELOC_NUMBER (R_PPC_VLE_HA16A, 223) | |
146 | RELOC_NUMBER (R_PPC_VLE_HA16D, 224) | |
147 | RELOC_NUMBER (R_PPC_VLE_SDA21, 225) | |
148 | RELOC_NUMBER (R_PPC_VLE_SDA21_LO, 226) | |
149 | RELOC_NUMBER (R_PPC_VLE_SDAREL_LO16A, 227) | |
150 | RELOC_NUMBER (R_PPC_VLE_SDAREL_LO16D, 228) | |
151 | RELOC_NUMBER (R_PPC_VLE_SDAREL_HI16A, 229) | |
152 | RELOC_NUMBER (R_PPC_VLE_SDAREL_HI16D, 230) | |
153 | RELOC_NUMBER (R_PPC_VLE_SDAREL_HA16A, 231) | |
154 | RELOC_NUMBER (R_PPC_VLE_SDAREL_HA16D, 232) | |
155 | ||
a680de9a PB |
156 | /* Power9 split rel16 for addpcis. */ |
157 | RELOC_NUMBER (R_PPC_REL16DX_HA, 246) | |
158 | ||
e054468f AM |
159 | /* Support STT_GNU_IFUNC plt calls. */ |
160 | RELOC_NUMBER (R_PPC_IRELATIVE, 248) | |
2df98d85 AM |
161 | |
162 | /* These are GNU extensions used in PIC code sequences. */ | |
163 | RELOC_NUMBER (R_PPC_REL16, 249) | |
164 | RELOC_NUMBER (R_PPC_REL16_LO, 250) | |
165 | RELOC_NUMBER (R_PPC_REL16_HI, 251) | |
166 | RELOC_NUMBER (R_PPC_REL16_HA, 252) | |
deaaf2f3 EC |
167 | |
168 | /* These are GNU extensions to enable C++ vtable garbage collection. */ | |
5255ffd3 AM |
169 | RELOC_NUMBER (R_PPC_GNU_VTINHERIT, 253) |
170 | RELOC_NUMBER (R_PPC_GNU_VTENTRY, 254) | |
252b5132 RH |
171 | |
172 | /* This is a phony reloc to handle any old fashioned TOC16 references | |
173 | that may still be in object files. */ | |
5255ffd3 | 174 | RELOC_NUMBER (R_PPC_TOC16, 255) |
252b5132 | 175 | |
1b452ec6 | 176 | END_RELOC_NUMBERS (R_PPC_max) |
252b5132 | 177 | |
94856796 AM |
178 | #define IS_PPC_TLS_RELOC(R) \ |
179 | ((R) >= R_PPC_TLS && (R) <= R_PPC_GOT_DTPREL16_HA) | |
19397422 | 180 | |
1fe44d79 | 181 | /* Specify the value of _GLOBAL_OFFSET_TABLE_. */ |
a7f2871e AM |
182 | #define DT_PPC_GOT (DT_LOPROC) |
183 | ||
184 | /* Specify that tls descriptors should be optimized. */ | |
e8910a83 AM |
185 | #define DT_PPC_OPT (DT_LOPROC + 1) |
186 | #define PPC_OPT_TLS 1 | |
2df98d85 | 187 | |
252b5132 RH |
188 | /* Processor specific flags for the ELF header e_flags field. */ |
189 | ||
7e984c81 | 190 | #define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag. */ |
252b5132 | 191 | |
7e984c81 NC |
192 | #define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag. */ |
193 | #define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib flag. */ | |
252b5132 | 194 | |
b9c361e0 JL |
195 | /* Processor specific program headers, p_flags field. */ |
196 | #define PF_PPC_VLE 0x10000000 /* PowerPC VLE. */ | |
197 | ||
198 | /* Processor specific section headers, sh_flags field. */ | |
199 | #define SHF_PPC_VLE 0x10000000 /* PowerPC VLE text section. */ | |
ae17ab41 | 200 | |
7e984c81 | 201 | /* Processor specific section headers, sh_type field. */ |
252b5132 RH |
202 | |
203 | #define SHT_ORDERED SHT_HIPROC /* Link editor is to sort the \ | |
204 | entries in this section \ | |
205 | based on the address \ | |
206 | specified in the associated \ | |
207 | symbol table entry. */ | |
208 | ||
14b57c7c AM |
209 | /* APUinfo note section. */ |
210 | #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo" | |
211 | #define APUINFO_LABEL "APUinfo" | |
212 | ||
213 | #define PPC_APUINFO_ISEL 0x40 | |
214 | #define PPC_APUINFO_PMR 0x41 | |
215 | #define PPC_APUINFO_RFMCI 0x42 | |
216 | #define PPC_APUINFO_CACHELCK 0x43 | |
217 | #define PPC_APUINFO_SPE 0x100 | |
218 | #define PPC_APUINFO_EFS 0x101 | |
219 | #define PPC_APUINFO_BRLOCK 0x102 | |
220 | #define PPC_APUINFO_VLE 0x104 | |
221 | ||
34c8bcba JM |
222 | /* Object attribute tags. */ |
223 | enum | |
224 | { | |
225 | /* 0-3 are generic. */ | |
005d79fd AM |
226 | |
227 | /* FP ABI, low 2 bits: | |
228 | 1 for double precision hard-float, | |
229 | 2 for soft-float, | |
230 | 3 for single precision hard-float. | |
231 | 0 for not tagged or not using any ABIs affected by the differences. | |
232 | Next 2 bits: | |
233 | 1 for ibm long double | |
234 | 2 for 64-bit long double | |
235 | 3 for IEEE long double. | |
236 | 0 for not tagged or not using any ABIs affected by the differences. */ | |
237 | Tag_GNU_Power_ABI_FP = 4, | |
c6e65352 DJ |
238 | |
239 | /* Value 1 for general purpose registers only, 2 for AltiVec | |
240 | registers, 3 for SPE registers; 0 for not tagged or not using any | |
241 | ABIs affected by the differences. */ | |
242 | Tag_GNU_Power_ABI_Vector = 8, | |
f82e0623 NF |
243 | |
244 | /* Value 1 for ABIs using r3/r4 for returning structures <= 8 bytes, | |
245 | 2 for ABIs using memory; 0 for not tagged or not using any ABIs | |
246 | affected by the differences. */ | |
247 | Tag_GNU_Power_ABI_Struct_Return = 12 | |
34c8bcba JM |
248 | }; |
249 | ||
252b5132 | 250 | #endif /* _ELF_PPC_H */ |