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[deliverable/binutils-gdb.git] / include / elf / ppc.h
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252b5132 1/* PPC ELF support for BFD.
b90efa5b 2 Copyright (C) 1995-2015 Free Software Foundation, Inc.
252b5132 3
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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
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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
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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
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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. */
35START_RELOC_NUMBERS (elf_ppc_reloc_type)
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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
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75#ifndef RELOC_MACROS_GEN_FUNC
76/* Fake relocations for branch stubs, only used internally by ld. */
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77 RELOC_NUMBER (R_PPC_RELAX, 48)
78 RELOC_NUMBER (R_PPC_RELAX_PLT, 49)
79 RELOC_NUMBER (R_PPC_RELAX_PLTREL24, 50)
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80#endif
81
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82 /* Relocs added to support TLS. */
83 RELOC_NUMBER (R_PPC_TLS, 67)
94856796 84 RELOC_NUMBER (R_PPC_DTPMOD32, 68)
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85 RELOC_NUMBER (R_PPC_TPREL16, 69)
86 RELOC_NUMBER (R_PPC_TPREL16_LO, 70)
87 RELOC_NUMBER (R_PPC_TPREL16_HI, 71)
88 RELOC_NUMBER (R_PPC_TPREL16_HA, 72)
94856796 89 RELOC_NUMBER (R_PPC_TPREL32, 73)
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90 RELOC_NUMBER (R_PPC_DTPREL16, 74)
91 RELOC_NUMBER (R_PPC_DTPREL16_LO, 75)
92 RELOC_NUMBER (R_PPC_DTPREL16_HI, 76)
93 RELOC_NUMBER (R_PPC_DTPREL16_HA, 77)
94856796 94 RELOC_NUMBER (R_PPC_DTPREL32, 78)
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95 RELOC_NUMBER (R_PPC_GOT_TLSGD16, 79)
96 RELOC_NUMBER (R_PPC_GOT_TLSGD16_LO, 80)
97 RELOC_NUMBER (R_PPC_GOT_TLSGD16_HI, 81)
98 RELOC_NUMBER (R_PPC_GOT_TLSGD16_HA, 82)
99 RELOC_NUMBER (R_PPC_GOT_TLSLD16, 83)
100 RELOC_NUMBER (R_PPC_GOT_TLSLD16_LO, 84)
101 RELOC_NUMBER (R_PPC_GOT_TLSLD16_HI, 85)
102 RELOC_NUMBER (R_PPC_GOT_TLSLD16_HA, 86)
103 RELOC_NUMBER (R_PPC_GOT_TPREL16, 87)
104 RELOC_NUMBER (R_PPC_GOT_TPREL16_LO, 88)
105 RELOC_NUMBER (R_PPC_GOT_TPREL16_HI, 89)
106 RELOC_NUMBER (R_PPC_GOT_TPREL16_HA, 90)
107 RELOC_NUMBER (R_PPC_GOT_DTPREL16, 91)
108 RELOC_NUMBER (R_PPC_GOT_DTPREL16_LO, 92)
109 RELOC_NUMBER (R_PPC_GOT_DTPREL16_HI, 93)
110 RELOC_NUMBER (R_PPC_GOT_DTPREL16_HA, 94)
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111 RELOC_NUMBER (R_PPC_TLSGD, 95)
112 RELOC_NUMBER (R_PPC_TLSLD, 96)
abd0e9cb 113
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114/* The remaining relocs are from the Embedded ELF ABI, and are not
115 in the SVR4 ELF ABI. */
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116 RELOC_NUMBER (R_PPC_EMB_NADDR32, 101)
117 RELOC_NUMBER (R_PPC_EMB_NADDR16, 102)
118 RELOC_NUMBER (R_PPC_EMB_NADDR16_LO, 103)
119 RELOC_NUMBER (R_PPC_EMB_NADDR16_HI, 104)
120 RELOC_NUMBER (R_PPC_EMB_NADDR16_HA, 105)
121 RELOC_NUMBER (R_PPC_EMB_SDAI16, 106)
122 RELOC_NUMBER (R_PPC_EMB_SDA2I16, 107)
123 RELOC_NUMBER (R_PPC_EMB_SDA2REL, 108)
124 RELOC_NUMBER (R_PPC_EMB_SDA21, 109)
125 RELOC_NUMBER (R_PPC_EMB_MRKREF, 110)
126 RELOC_NUMBER (R_PPC_EMB_RELSEC16, 111)
127 RELOC_NUMBER (R_PPC_EMB_RELST_LO, 112)
128 RELOC_NUMBER (R_PPC_EMB_RELST_HI, 113)
129 RELOC_NUMBER (R_PPC_EMB_RELST_HA, 114)
130 RELOC_NUMBER (R_PPC_EMB_BIT_FLD, 115)
131 RELOC_NUMBER (R_PPC_EMB_RELSDA, 116)
252b5132 132
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133/* PowerPC VLE relocations. */
134 RELOC_NUMBER (R_PPC_VLE_REL8, 216)
135 RELOC_NUMBER (R_PPC_VLE_REL15, 217)
136 RELOC_NUMBER (R_PPC_VLE_REL24, 218)
137 RELOC_NUMBER (R_PPC_VLE_LO16A, 219)
138 RELOC_NUMBER (R_PPC_VLE_LO16D, 220)
139 RELOC_NUMBER (R_PPC_VLE_HI16A, 221)
140 RELOC_NUMBER (R_PPC_VLE_HI16D, 222)
141 RELOC_NUMBER (R_PPC_VLE_HA16A, 223)
142 RELOC_NUMBER (R_PPC_VLE_HA16D, 224)
143 RELOC_NUMBER (R_PPC_VLE_SDA21, 225)
144 RELOC_NUMBER (R_PPC_VLE_SDA21_LO, 226)
145 RELOC_NUMBER (R_PPC_VLE_SDAREL_LO16A, 227)
146 RELOC_NUMBER (R_PPC_VLE_SDAREL_LO16D, 228)
147 RELOC_NUMBER (R_PPC_VLE_SDAREL_HI16A, 229)
148 RELOC_NUMBER (R_PPC_VLE_SDAREL_HI16D, 230)
149 RELOC_NUMBER (R_PPC_VLE_SDAREL_HA16A, 231)
150 RELOC_NUMBER (R_PPC_VLE_SDAREL_HA16D, 232)
151
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152/* Support STT_GNU_IFUNC plt calls. */
153 RELOC_NUMBER (R_PPC_IRELATIVE, 248)
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154
155/* These are GNU extensions used in PIC code sequences. */
156 RELOC_NUMBER (R_PPC_REL16, 249)
157 RELOC_NUMBER (R_PPC_REL16_LO, 250)
158 RELOC_NUMBER (R_PPC_REL16_HI, 251)
159 RELOC_NUMBER (R_PPC_REL16_HA, 252)
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160
161/* These are GNU extensions to enable C++ vtable garbage collection. */
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162 RELOC_NUMBER (R_PPC_GNU_VTINHERIT, 253)
163 RELOC_NUMBER (R_PPC_GNU_VTENTRY, 254)
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164
165/* This is a phony reloc to handle any old fashioned TOC16 references
166 that may still be in object files. */
5255ffd3 167 RELOC_NUMBER (R_PPC_TOC16, 255)
252b5132 168
1b452ec6 169END_RELOC_NUMBERS (R_PPC_max)
252b5132 170
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171#define IS_PPC_TLS_RELOC(R) \
172 ((R) >= R_PPC_TLS && (R) <= R_PPC_GOT_DTPREL16_HA)
19397422 173
1fe44d79 174/* Specify the value of _GLOBAL_OFFSET_TABLE_. */
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175#define DT_PPC_GOT (DT_LOPROC)
176
177/* Specify that tls descriptors should be optimized. */
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178#define DT_PPC_OPT (DT_LOPROC + 1)
179#define PPC_OPT_TLS 1
2df98d85 180
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181/* Processor specific flags for the ELF header e_flags field. */
182
7e984c81 183#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag. */
252b5132 184
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185#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag. */
186#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib flag. */
252b5132 187
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188/* Processor specific program headers, p_flags field. */
189#define PF_PPC_VLE 0x10000000 /* PowerPC VLE. */
190
191/* Processor specific section headers, sh_flags field. */
192#define SHF_PPC_VLE 0x10000000 /* PowerPC VLE text section. */
ae17ab41 193
7e984c81 194/* Processor specific section headers, sh_type field. */
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195
196#define SHT_ORDERED SHT_HIPROC /* Link editor is to sort the \
197 entries in this section \
198 based on the address \
199 specified in the associated \
200 symbol table entry. */
201
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202/* Object attribute tags. */
203enum
204{
205 /* 0-3 are generic. */
206 Tag_GNU_Power_ABI_FP = 4, /* Value 1 for hard-float, 2 for
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207 soft-float, 3 for single=precision
208 hard-float; 0 for not tagged or not
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209 using any ABIs affected by the
210 differences. */
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211
212 /* Value 1 for general purpose registers only, 2 for AltiVec
213 registers, 3 for SPE registers; 0 for not tagged or not using any
214 ABIs affected by the differences. */
215 Tag_GNU_Power_ABI_Vector = 8,
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216
217 /* Value 1 for ABIs using r3/r4 for returning structures <= 8 bytes,
218 2 for ABIs using memory; 0 for not tagged or not using any ABIs
219 affected by the differences. */
220 Tag_GNU_Power_ABI_Struct_Return = 12
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221};
222
252b5132 223#endif /* _ELF_PPC_H */
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