]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blame - include/elf/ppc64.h
Implement PowerPC64 .localentry for value 1
[thirdparty/binutils-gdb.git] / include / elf / ppc64.h
CommitLineData
1df2fdb5 1/* PPC64 ELF support for BFD.
219d1afa 2 Copyright (C) 2003-2018 Free Software Foundation, Inc.
1df2fdb5 3
e4e42b45 4 This file is part of BFD, the Binary File Descriptor library.
1df2fdb5 5
e4e42b45
NC
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.
1df2fdb5 10
e4e42b45
NC
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.
1df2fdb5 15
e4e42b45
NC
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. */
1df2fdb5
AM
20
21#ifndef _ELF_PPC64_H
22#define _ELF_PPC64_H
23
24#include "elf/reloc-macros.h"
25
26/* Relocations. */
27START_RELOC_NUMBERS (elf_ppc64_reloc_type)
5255ffd3
AM
28 RELOC_NUMBER (R_PPC64_NONE, 0)
29 RELOC_NUMBER (R_PPC64_ADDR32, 1)
30 RELOC_NUMBER (R_PPC64_ADDR24, 2)
31 RELOC_NUMBER (R_PPC64_ADDR16, 3)
32 RELOC_NUMBER (R_PPC64_ADDR16_LO, 4)
33 RELOC_NUMBER (R_PPC64_ADDR16_HI, 5)
34 RELOC_NUMBER (R_PPC64_ADDR16_HA, 6)
35 RELOC_NUMBER (R_PPC64_ADDR14, 7)
36 RELOC_NUMBER (R_PPC64_ADDR14_BRTAKEN, 8)
37 RELOC_NUMBER (R_PPC64_ADDR14_BRNTAKEN, 9)
38 RELOC_NUMBER (R_PPC64_REL24, 10)
39 RELOC_NUMBER (R_PPC64_REL14, 11)
40 RELOC_NUMBER (R_PPC64_REL14_BRTAKEN, 12)
41 RELOC_NUMBER (R_PPC64_REL14_BRNTAKEN, 13)
42 RELOC_NUMBER (R_PPC64_GOT16, 14)
43 RELOC_NUMBER (R_PPC64_GOT16_LO, 15)
44 RELOC_NUMBER (R_PPC64_GOT16_HI, 16)
45 RELOC_NUMBER (R_PPC64_GOT16_HA, 17)
1df2fdb5 46 /* 18 unused. 32-bit reloc is R_PPC_PLTREL24. */
5255ffd3
AM
47 RELOC_NUMBER (R_PPC64_COPY, 19)
48 RELOC_NUMBER (R_PPC64_GLOB_DAT, 20)
49 RELOC_NUMBER (R_PPC64_JMP_SLOT, 21)
50 RELOC_NUMBER (R_PPC64_RELATIVE, 22)
1df2fdb5 51 /* 23 unused. 32-bit reloc is R_PPC_LOCAL24PC. */
5255ffd3
AM
52 RELOC_NUMBER (R_PPC64_UADDR32, 24)
53 RELOC_NUMBER (R_PPC64_UADDR16, 25)
54 RELOC_NUMBER (R_PPC64_REL32, 26)
55 RELOC_NUMBER (R_PPC64_PLT32, 27)
56 RELOC_NUMBER (R_PPC64_PLTREL32, 28)
57 RELOC_NUMBER (R_PPC64_PLT16_LO, 29)
58 RELOC_NUMBER (R_PPC64_PLT16_HI, 30)
59 RELOC_NUMBER (R_PPC64_PLT16_HA, 31)
1df2fdb5 60 /* 32 unused. 32-bit reloc is R_PPC_SDAREL16. */
5255ffd3
AM
61 RELOC_NUMBER (R_PPC64_SECTOFF, 33)
62 RELOC_NUMBER (R_PPC64_SECTOFF_LO, 34)
63 RELOC_NUMBER (R_PPC64_SECTOFF_HI, 35)
64 RELOC_NUMBER (R_PPC64_SECTOFF_HA, 36)
65 RELOC_NUMBER (R_PPC64_REL30, 37)
66 RELOC_NUMBER (R_PPC64_ADDR64, 38)
67 RELOC_NUMBER (R_PPC64_ADDR16_HIGHER, 39)
68 RELOC_NUMBER (R_PPC64_ADDR16_HIGHERA, 40)
69 RELOC_NUMBER (R_PPC64_ADDR16_HIGHEST, 41)
70 RELOC_NUMBER (R_PPC64_ADDR16_HIGHESTA, 42)
71 RELOC_NUMBER (R_PPC64_UADDR64, 43)
72 RELOC_NUMBER (R_PPC64_REL64, 44)
73 RELOC_NUMBER (R_PPC64_PLT64, 45)
74 RELOC_NUMBER (R_PPC64_PLTREL64, 46)
75 RELOC_NUMBER (R_PPC64_TOC16, 47)
76 RELOC_NUMBER (R_PPC64_TOC16_LO, 48)
77 RELOC_NUMBER (R_PPC64_TOC16_HI, 49)
78 RELOC_NUMBER (R_PPC64_TOC16_HA, 50)
79 RELOC_NUMBER (R_PPC64_TOC, 51)
80 RELOC_NUMBER (R_PPC64_PLTGOT16, 52)
81 RELOC_NUMBER (R_PPC64_PLTGOT16_LO, 53)
82 RELOC_NUMBER (R_PPC64_PLTGOT16_HI, 54)
83 RELOC_NUMBER (R_PPC64_PLTGOT16_HA, 55)
1df2fdb5 84
5255ffd3
AM
85 /* The following relocs were added in the 64-bit PowerPC ELF ABI
86 revision 1.2. */
87 RELOC_NUMBER (R_PPC64_ADDR16_DS, 56)
88 RELOC_NUMBER (R_PPC64_ADDR16_LO_DS, 57)
89 RELOC_NUMBER (R_PPC64_GOT16_DS, 58)
90 RELOC_NUMBER (R_PPC64_GOT16_LO_DS, 59)
91 RELOC_NUMBER (R_PPC64_PLT16_LO_DS, 60)
92 RELOC_NUMBER (R_PPC64_SECTOFF_DS, 61)
93 RELOC_NUMBER (R_PPC64_SECTOFF_LO_DS, 62)
94 RELOC_NUMBER (R_PPC64_TOC16_DS, 63)
95 RELOC_NUMBER (R_PPC64_TOC16_LO_DS, 64)
96 RELOC_NUMBER (R_PPC64_PLTGOT16_DS, 65)
97 RELOC_NUMBER (R_PPC64_PLTGOT16_LO_DS, 66)
98
99 /* Relocs added to support TLS. PowerPC64 ELF ABI revision 1.5. */
100 RELOC_NUMBER (R_PPC64_TLS, 67)
101 RELOC_NUMBER (R_PPC64_DTPMOD64, 68)
102 RELOC_NUMBER (R_PPC64_TPREL16, 69)
103 RELOC_NUMBER (R_PPC64_TPREL16_LO, 70)
104 RELOC_NUMBER (R_PPC64_TPREL16_HI, 71)
105 RELOC_NUMBER (R_PPC64_TPREL16_HA, 72)
106 RELOC_NUMBER (R_PPC64_TPREL64, 73)
107 RELOC_NUMBER (R_PPC64_DTPREL16, 74)
108 RELOC_NUMBER (R_PPC64_DTPREL16_LO, 75)
109 RELOC_NUMBER (R_PPC64_DTPREL16_HI, 76)
110 RELOC_NUMBER (R_PPC64_DTPREL16_HA, 77)
111 RELOC_NUMBER (R_PPC64_DTPREL64, 78)
112 RELOC_NUMBER (R_PPC64_GOT_TLSGD16, 79)
113 RELOC_NUMBER (R_PPC64_GOT_TLSGD16_LO, 80)
114 RELOC_NUMBER (R_PPC64_GOT_TLSGD16_HI, 81)
115 RELOC_NUMBER (R_PPC64_GOT_TLSGD16_HA, 82)
116 RELOC_NUMBER (R_PPC64_GOT_TLSLD16, 83)
117 RELOC_NUMBER (R_PPC64_GOT_TLSLD16_LO, 84)
118 RELOC_NUMBER (R_PPC64_GOT_TLSLD16_HI, 85)
119 RELOC_NUMBER (R_PPC64_GOT_TLSLD16_HA, 86)
120 RELOC_NUMBER (R_PPC64_GOT_TPREL16_DS, 87)
121 RELOC_NUMBER (R_PPC64_GOT_TPREL16_LO_DS, 88)
122 RELOC_NUMBER (R_PPC64_GOT_TPREL16_HI, 89)
123 RELOC_NUMBER (R_PPC64_GOT_TPREL16_HA, 90)
124 RELOC_NUMBER (R_PPC64_GOT_DTPREL16_DS, 91)
125 RELOC_NUMBER (R_PPC64_GOT_DTPREL16_LO_DS, 92)
126 RELOC_NUMBER (R_PPC64_GOT_DTPREL16_HI, 93)
127 RELOC_NUMBER (R_PPC64_GOT_DTPREL16_HA, 94)
128 RELOC_NUMBER (R_PPC64_TPREL16_DS, 95)
129 RELOC_NUMBER (R_PPC64_TPREL16_LO_DS, 96)
130 RELOC_NUMBER (R_PPC64_TPREL16_HIGHER, 97)
131 RELOC_NUMBER (R_PPC64_TPREL16_HIGHERA, 98)
132 RELOC_NUMBER (R_PPC64_TPREL16_HIGHEST, 99)
133 RELOC_NUMBER (R_PPC64_TPREL16_HIGHESTA, 100)
134 RELOC_NUMBER (R_PPC64_DTPREL16_DS, 101)
135 RELOC_NUMBER (R_PPC64_DTPREL16_LO_DS, 102)
136 RELOC_NUMBER (R_PPC64_DTPREL16_HIGHER, 103)
137 RELOC_NUMBER (R_PPC64_DTPREL16_HIGHERA, 104)
138 RELOC_NUMBER (R_PPC64_DTPREL16_HIGHEST, 105)
139 RELOC_NUMBER (R_PPC64_DTPREL16_HIGHESTA, 106)
727fc41e
AM
140 RELOC_NUMBER (R_PPC64_TLSGD, 107)
141 RELOC_NUMBER (R_PPC64_TLSLD, 108)
3b421ab3 142 RELOC_NUMBER (R_PPC64_TOCSAVE, 109)
1df2fdb5 143
f9c6b907
AM
144/* Added when HA and HI relocs were changed to report overflows. */
145 RELOC_NUMBER (R_PPC64_ADDR16_HIGH, 110)
146 RELOC_NUMBER (R_PPC64_ADDR16_HIGHA, 111)
147 RELOC_NUMBER (R_PPC64_TPREL16_HIGH, 112)
148 RELOC_NUMBER (R_PPC64_TPREL16_HIGHA, 113)
149 RELOC_NUMBER (R_PPC64_DTPREL16_HIGH, 114)
150 RELOC_NUMBER (R_PPC64_DTPREL16_HIGHA, 115)
151
45965137
AM
152/* Added for ELFv2. */
153 RELOC_NUMBER (R_PPC64_REL24_NOTOC, 116)
154 RELOC_NUMBER (R_PPC64_ADDR64_LOCAL, 117)
006589cf 155 RELOC_NUMBER (R_PPC64_ENTRY, 118)
45965137 156
23cedd1d
AM
157/* Marker reloc for inline plt call insns. */
158 RELOC_NUMBER (R_PPC64_PLTSEQ, 119)
159 RELOC_NUMBER (R_PPC64_PLTCALL, 120)
160
ba761f19 161#ifndef RELOC_MACROS_GEN_FUNC
7ba71655
AM
162/* Relocation only used internally by ld. If you need to use these
163 reloc numbers, you can change them to some other unused value
164 without affecting the ABI. They will never appear in object files. */
ba761f19 165 RELOC_NUMBER (R_PPC64_LO_DS_OPT, 128)
7ba71655
AM
166/* Reloc only used internally by gas. As above, value is unimportant. */
167 RELOC_NUMBER (R_PPC64_16DX_HA, 129)
ba761f19 168#endif
a680de9a
PB
169
170/* Power9 split rel16 for addpcis. */
171 RELOC_NUMBER (R_PPC64_REL16DX_HA, 246)
172
e054468f 173/* Support STT_GNU_IFUNC plt calls. */
28ec585f 174 RELOC_NUMBER (R_PPC64_JMP_IREL, 247)
e054468f
AM
175 RELOC_NUMBER (R_PPC64_IRELATIVE, 248)
176
28ec585f
AM
177/* These are GNU extensions used in PIC code sequences. */
178 RELOC_NUMBER (R_PPC64_REL16, 249)
179 RELOC_NUMBER (R_PPC64_REL16_LO, 250)
180 RELOC_NUMBER (R_PPC64_REL16_HI, 251)
181 RELOC_NUMBER (R_PPC64_REL16_HA, 252)
182
1df2fdb5 183 /* These are GNU extensions to enable C++ vtable garbage collection. */
5255ffd3
AM
184 RELOC_NUMBER (R_PPC64_GNU_VTINHERIT, 253)
185 RELOC_NUMBER (R_PPC64_GNU_VTENTRY, 254)
1df2fdb5
AM
186
187END_RELOC_NUMBERS (R_PPC64_max)
188
f9c6b907
AM
189#define IS_PPC64_TLS_RELOC(R) \
190 (((R) >= R_PPC64_TLS && (R) <= R_PPC64_DTPREL16_HIGHESTA) \
191 || ((R) >= R_PPC64_TPREL16_HIGH && (R) <= R_PPC64_DTPREL16_HIGHA))
5255ffd3 192
ee67d69a
AM
193
194/* e_flags bits specifying ABI.
195 1 for original function descriptor using ABI,
196 2 for revised ABI without function descriptors,
197 0 for unspecified or not using any features affected by the differences. */
198#define EF_PPC64_ABI 3
199
6911b7dc 200/* The ELFv2 ABI uses three bits in the symbol st_other field of a
33cb30a1 201 function definition to specify the number of bytes between a
6911b7dc 202 function's global entry point and local entry point.
33cb30a1
AM
203 Values of two to six specify powers of two from four to sixty four
204 bytes. For such functions:
6911b7dc
AM
205 The global entry point is used when it is necessary to set up the
206 toc pointer (r2) for the function. Callers must enter the global
207 entry point with r12 set to the global entry point address. On
33cb30a1
AM
208 return from the function r2 will contain the toc pointer for the
209 function.
6911b7dc
AM
210 The local entry point is used when r2 is known to already be valid
211 for the function. There is no requirement on r12 when using the
212 local entry point, and on return r2 will contain the same value as
213 at entry.
214 A value of zero in these bits means that the function has a single
215 entry point with no requirement on r12 or r2, and that on return r2
216 will contain the same value as at entry.
33cb30a1
AM
217 A value of one means that the function has a single entry point
218 with no requirement on r12 or r2, and that r2 is *not* preserved.
219 A value of seven is reserved. */
6911b7dc
AM
220#define STO_PPC64_LOCAL_BIT 5
221#define STO_PPC64_LOCAL_MASK (7 << STO_PPC64_LOCAL_BIT)
222
223// 3 bit other field to bytes.
224static inline unsigned int
225ppc64_decode_local_entry(unsigned int other)
226{
227 return ((1 << other) >> 2) << 2;
228}
229
230// bytes to field value.
231static inline unsigned int
232ppc64_encode_local_entry(unsigned int val)
233{
234 return (val >= 4 * 4
235 ? (val >= 8 * 4
236 ? (val >= 16 * 4 ? 6 : 5)
237 : 4)
238 : (val >= 2 * 4
239 ? 3
240 : (val >= 1 * 4 ? 2 : 0)));
241}
242
243/* st_other to number of bytes. */
244#define PPC64_LOCAL_ENTRY_OFFSET(other) \
245 ppc64_decode_local_entry (((other) & STO_PPC64_LOCAL_MASK) \
246 >> STO_PPC64_LOCAL_BIT)
247/* number of bytes to st_other. */
248#define PPC64_SET_LOCAL_ENTRY_OFFSET(val) \
249 ppc64_encode_local_entry (val) << STO_PPC64_LOCAL_BIT
250
1df2fdb5
AM
251/* Specify the start of the .glink section. */
252#define DT_PPC64_GLINK DT_LOPROC
253
254/* Specify the start and size of the .opd section. */
255#define DT_PPC64_OPD (DT_LOPROC + 1)
256#define DT_PPC64_OPDSZ (DT_LOPROC + 2)
257
e8910a83
AM
258/* Specify whether various optimisations are possible. */
259#define DT_PPC64_OPT (DT_LOPROC + 3)
260#define PPC64_OPT_TLS 1
261#define PPC64_OPT_MULTI_TOC 2
f378ab09 262#define PPC64_OPT_LOCALENTRY 4
a7f2871e 263
1df2fdb5 264#endif /* _ELF_PPC64_H */