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d026a66d 1/* PPC ELF support for BFD.
2 Copyright 1995, 1996, 1998, 2000, 2001 Free Software Foundation, Inc.
3
4 By Michael Meissner, Cygnus Support, <meissner@cygnus.com>, from information
5 in the System V Application Binary Interface, PowerPC Processor Supplement
6 and the PowerPC Embedded Application Binary Interface (eabi).
7
8This file is part of BFD, the Binary File Descriptor library.
9
10This program is free software; you can redistribute it and/or modify
11it under the terms of the GNU General Public License as published by
12the Free Software Foundation; either version 2 of the License, or
13(at your option) any later version.
14
15This program is distributed in the hope that it will be useful,
16but WITHOUT ANY WARRANTY; without even the implied warranty of
17MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18GNU General Public License for more details.
19
20You should have received a copy of the GNU General Public License
21along with this program; if not, write to the Free Software
22Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23
24/* This file holds definitions specific to the PPC ELF ABI. Note
25 that most of this is not actually implemented by BFD. */
26
27#ifndef _ELF_PPC_H
28#define _ELF_PPC_H
29
30#include "elf/reloc-macros.h"
31
32/* Relocations. */
33START_RELOC_NUMBERS (elf_ppc_reloc_type)
34 RELOC_NUMBER (R_PPC_NONE, 0)
35 RELOC_NUMBER (R_PPC_ADDR32, 1)
36 RELOC_NUMBER (R_PPC_ADDR24, 2)
37 RELOC_NUMBER (R_PPC_ADDR16, 3)
38 RELOC_NUMBER (R_PPC_ADDR16_LO, 4)
39 RELOC_NUMBER (R_PPC_ADDR16_HI, 5)
40 RELOC_NUMBER (R_PPC_ADDR16_HA, 6)
41 RELOC_NUMBER (R_PPC_ADDR14, 7)
42 RELOC_NUMBER (R_PPC_ADDR14_BRTAKEN, 8)
43 RELOC_NUMBER (R_PPC_ADDR14_BRNTAKEN, 9)
44 RELOC_NUMBER (R_PPC_REL24, 10)
45 RELOC_NUMBER (R_PPC_REL14, 11)
46 RELOC_NUMBER (R_PPC_REL14_BRTAKEN, 12)
47 RELOC_NUMBER (R_PPC_REL14_BRNTAKEN, 13)
48 RELOC_NUMBER (R_PPC_GOT16, 14)
49 RELOC_NUMBER (R_PPC_GOT16_LO, 15)
50 RELOC_NUMBER (R_PPC_GOT16_HI, 16)
51 RELOC_NUMBER (R_PPC_GOT16_HA, 17)
52 RELOC_NUMBER (R_PPC_PLTREL24, 18)
53 RELOC_NUMBER (R_PPC_COPY, 19)
54 RELOC_NUMBER (R_PPC_GLOB_DAT, 20)
55 RELOC_NUMBER (R_PPC_JMP_SLOT, 21)
56 RELOC_NUMBER (R_PPC_RELATIVE, 22)
57 RELOC_NUMBER (R_PPC_LOCAL24PC, 23)
58 RELOC_NUMBER (R_PPC_UADDR32, 24)
59 RELOC_NUMBER (R_PPC_UADDR16, 25)
60 RELOC_NUMBER (R_PPC_REL32, 26)
61 RELOC_NUMBER (R_PPC_PLT32, 27)
62 RELOC_NUMBER (R_PPC_PLTREL32, 28)
63 RELOC_NUMBER (R_PPC_PLT16_LO, 29)
64 RELOC_NUMBER (R_PPC_PLT16_HI, 30)
65 RELOC_NUMBER (R_PPC_PLT16_HA, 31)
66 RELOC_NUMBER (R_PPC_SDAREL16, 32)
67 RELOC_NUMBER (R_PPC_SECTOFF, 33)
68 RELOC_NUMBER (R_PPC_SECTOFF_LO, 34)
69 RELOC_NUMBER (R_PPC_SECTOFF_HI, 35)
70 RELOC_NUMBER (R_PPC_SECTOFF_HA, 36)
71 RELOC_NUMBER (R_PPC_ADDR30, 37)
72
73/* The following relocs are from the 64-bit PowerPC ELF ABI. */
74 RELOC_NUMBER (R_PPC64_ADDR64, 38)
75 RELOC_NUMBER (R_PPC64_ADDR16_HIGHER, 39)
76 RELOC_NUMBER (R_PPC64_ADDR16_HIGHERA, 40)
77 RELOC_NUMBER (R_PPC64_ADDR16_HIGHEST, 41)
78 RELOC_NUMBER (R_PPC64_ADDR16_HIGHESTA, 42)
79 RELOC_NUMBER (R_PPC64_UADDR64, 43)
80 RELOC_NUMBER (R_PPC64_REL64, 44)
81 RELOC_NUMBER (R_PPC64_PLT64, 45)
82 RELOC_NUMBER (R_PPC64_PLTREL64, 46)
83 RELOC_NUMBER (R_PPC64_TOC16, 47)
84 RELOC_NUMBER (R_PPC64_TOC16_LO, 48)
85 RELOC_NUMBER (R_PPC64_TOC16_HI, 49)
86 RELOC_NUMBER (R_PPC64_TOC16_HA, 50)
87 RELOC_NUMBER (R_PPC64_TOC, 51)
88 RELOC_NUMBER (R_PPC64_PLTGOT16, 52)
89 RELOC_NUMBER (R_PPC64_PLTGOT16_LO, 53)
90 RELOC_NUMBER (R_PPC64_PLTGOT16_HI, 54)
91 RELOC_NUMBER (R_PPC64_PLTGOT16_HA, 55)
92
93/* The following relocs were added in the 64-bit PowerPC ELF ABI revision 1.2. */
94 RELOC_NUMBER (R_PPC64_ADDR16_DS, 56)
95 RELOC_NUMBER (R_PPC64_ADDR16_LO_DS, 57)
96 RELOC_NUMBER (R_PPC64_GOT16_DS, 58)
97 RELOC_NUMBER (R_PPC64_GOT16_LO_DS, 59)
98 RELOC_NUMBER (R_PPC64_PLT16_LO_DS, 60)
99 RELOC_NUMBER (R_PPC64_SECTOFF_DS, 61)
100 RELOC_NUMBER (R_PPC64_SECTOFF_LO_DS, 62)
101 RELOC_NUMBER (R_PPC64_TOC16_DS, 63)
102 RELOC_NUMBER (R_PPC64_TOC16_LO_DS, 64)
103 RELOC_NUMBER (R_PPC64_PLTGOT16_DS, 65)
104 RELOC_NUMBER (R_PPC64_PLTGOT16_LO_DS, 66)
105
106/* The remaining relocs are from the Embedded ELF ABI, and are not
107 in the SVR4 ELF ABI. */
108 RELOC_NUMBER (R_PPC_EMB_NADDR32, 101)
109 RELOC_NUMBER (R_PPC_EMB_NADDR16, 102)
110 RELOC_NUMBER (R_PPC_EMB_NADDR16_LO, 103)
111 RELOC_NUMBER (R_PPC_EMB_NADDR16_HI, 104)
112 RELOC_NUMBER (R_PPC_EMB_NADDR16_HA, 105)
113 RELOC_NUMBER (R_PPC_EMB_SDAI16, 106)
114 RELOC_NUMBER (R_PPC_EMB_SDA2I16, 107)
115 RELOC_NUMBER (R_PPC_EMB_SDA2REL, 108)
116 RELOC_NUMBER (R_PPC_EMB_SDA21, 109)
117 RELOC_NUMBER (R_PPC_EMB_MRKREF, 110)
118 RELOC_NUMBER (R_PPC_EMB_RELSEC16, 111)
119 RELOC_NUMBER (R_PPC_EMB_RELST_LO, 112)
120 RELOC_NUMBER (R_PPC_EMB_RELST_HI, 113)
121 RELOC_NUMBER (R_PPC_EMB_RELST_HA, 114)
122 RELOC_NUMBER (R_PPC_EMB_BIT_FLD, 115)
123 RELOC_NUMBER (R_PPC_EMB_RELSDA, 116)
124
125 /* These are GNU extensions to enable C++ vtable garbage collection. */
126 RELOC_NUMBER (R_PPC_GNU_VTINHERIT, 253)
127 RELOC_NUMBER (R_PPC_GNU_VTENTRY, 254)
128
129/* This is a phony reloc to handle any old fashioned TOC16 references
130 that may still be in object files. */
131 RELOC_NUMBER (R_PPC_TOC16, 255)
132
133END_RELOC_NUMBERS (R_PPC_max)
134
135/* Aliases for R_PPC64-relocs. */
136#define R_PPC64_NONE R_PPC_NONE
137#define R_PPC64_ADDR32 R_PPC_ADDR32
138#define R_PPC64_ADDR24 R_PPC_ADDR24
139#define R_PPC64_ADDR16 R_PPC_ADDR16
140#define R_PPC64_ADDR16_LO R_PPC_ADDR16_LO
141#define R_PPC64_ADDR16_HI R_PPC_ADDR16_HI
142#define R_PPC64_ADDR16_HA R_PPC_ADDR16_HA
143#define R_PPC64_ADDR14 R_PPC_ADDR14
144#define R_PPC64_ADDR14_BRTAKEN R_PPC_ADDR14_BRTAKEN
145#define R_PPC64_ADDR14_BRNTAKEN R_PPC_ADDR14_BRNTAKEN
146#define R_PPC64_REL24 R_PPC_REL24
147#define R_PPC64_REL14 R_PPC_REL14
148#define R_PPC64_REL14_BRTAKEN R_PPC_REL14_BRTAKEN
149#define R_PPC64_REL14_BRNTAKEN R_PPC_REL14_BRNTAKEN
150#define R_PPC64_GOT16 R_PPC_GOT16
151#define R_PPC64_GOT16_LO R_PPC_GOT16_LO
152#define R_PPC64_GOT16_HI R_PPC_GOT16_HI
153#define R_PPC64_GOT16_HA R_PPC_GOT16_HA
154#define R_PPC64_COPY R_PPC_COPY
155#define R_PPC64_GLOB_DAT R_PPC_GLOB_DAT
156#define R_PPC64_JMP_SLOT R_PPC_JMP_SLOT
157#define R_PPC64_RELATIVE R_PPC_RELATIVE
158#define R_PPC64_UADDR32 R_PPC_UADDR32
159#define R_PPC64_UADDR16 R_PPC_UADDR16
160#define R_PPC64_REL32 R_PPC_REL32
161#define R_PPC64_PLT32 R_PPC_PLT32
162#define R_PPC64_PLTREL32 R_PPC_PLTREL32
163#define R_PPC64_PLT16_LO R_PPC_PLT16_LO
164#define R_PPC64_PLT16_HI R_PPC_PLT16_HI
165#define R_PPC64_PLT16_HA R_PPC_PLT16_HA
166#define R_PPC64_SECTOFF R_PPC_SECTOFF
167#define R_PPC64_SECTOFF_LO R_PPC_SECTOFF_LO
168#define R_PPC64_SECTOFF_HI R_PPC_SECTOFF_HI
169#define R_PPC64_SECTOFF_HA R_PPC_SECTOFF_HA
170#define R_PPC64_ADDR30 R_PPC_ADDR30
171#define R_PPC64_GNU_VTINHERIT R_PPC_GNU_VTINHERIT
172#define R_PPC64_GNU_VTENTRY R_PPC_GNU_VTENTRY
173
174/* Specify the start of the .glink section. */
175#define DT_PPC64_GLINK DT_LOPROC
176
177/* Specify the start and size of the .opd section. */
178#define DT_PPC64_OPD (DT_LOPROC + 1)
179#define DT_PPC64_OPDSZ (DT_LOPROC + 2)
180
181/* Processor specific flags for the ELF header e_flags field. */
182
183#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag. */
184
185#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag. */
186#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib flag. */
187
188/* Processor specific section headers, sh_type field. */
189
190#define SHT_ORDERED SHT_HIPROC /* Link editor is to sort the \
191 entries in this section \
192 based on the address \
193 specified in the associated \
194 symbol table entry. */
195
196/* Processor specific section flags, sh_flags field. */
197
198#define SHF_EXCLUDE 0x80000000 /* Link editor is to exclude \
199 this section from executable \
200 and shared objects that it \
201 builds when those objects \
202 are not to be furhter \
203 relocated. */
204#endif /* _ELF_PPC_H */