Import binutils-2.20
[dragonfly.git] / contrib / binutils-2.20 / include / elf / ppc.h
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8e158dd0
SS
1/* PPC ELF support for BFD.
2 Copyright 1995, 1996, 1998, 2000, 2001, 2002, 2003, 2005, 2007, 2008,
3 2009 Free Software Foundation, Inc.
4
5 By Michael Meissner, Cygnus Support, <meissner@cygnus.com>, from information
6 in the System V Application Binary Interface, PowerPC Processor Supplement
7 and the PowerPC Embedded Application Binary Interface (eabi).
8
9This file is part of BFD, the Binary File Descriptor library.
10
11This program is free software; you can redistribute it and/or modify
12it under the terms of the GNU General Public License as published by
13the Free Software Foundation; either version 2 of the License, or
14(at your option) any later version.
15
16This program is distributed in the hope that it will be useful,
17but WITHOUT ANY WARRANTY; without even the implied warranty of
18MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19GNU General Public License for more details.
20
21You should have received a copy of the GNU General Public License
22along with this program; if not, write to the Free Software
23Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
24
25/* This file holds definitions specific to the PPC ELF ABI. Note
26 that most of this is not actually implemented by BFD. */
27
28#ifndef _ELF_PPC_H
29#define _ELF_PPC_H
30
31#include "elf/reloc-macros.h"
32
33/* Relocations. */
34START_RELOC_NUMBERS (elf_ppc_reloc_type)
35 RELOC_NUMBER (R_PPC_NONE, 0)
36 RELOC_NUMBER (R_PPC_ADDR32, 1)
37 RELOC_NUMBER (R_PPC_ADDR24, 2)
38 RELOC_NUMBER (R_PPC_ADDR16, 3)
39 RELOC_NUMBER (R_PPC_ADDR16_LO, 4)
40 RELOC_NUMBER (R_PPC_ADDR16_HI, 5)
41 RELOC_NUMBER (R_PPC_ADDR16_HA, 6)
42 RELOC_NUMBER (R_PPC_ADDR14, 7)
43 RELOC_NUMBER (R_PPC_ADDR14_BRTAKEN, 8)
44 RELOC_NUMBER (R_PPC_ADDR14_BRNTAKEN, 9)
45 RELOC_NUMBER (R_PPC_REL24, 10)
46 RELOC_NUMBER (R_PPC_REL14, 11)
47 RELOC_NUMBER (R_PPC_REL14_BRTAKEN, 12)
48 RELOC_NUMBER (R_PPC_REL14_BRNTAKEN, 13)
49 RELOC_NUMBER (R_PPC_GOT16, 14)
50 RELOC_NUMBER (R_PPC_GOT16_LO, 15)
51 RELOC_NUMBER (R_PPC_GOT16_HI, 16)
52 RELOC_NUMBER (R_PPC_GOT16_HA, 17)
53 RELOC_NUMBER (R_PPC_PLTREL24, 18)
54 RELOC_NUMBER (R_PPC_COPY, 19)
55 RELOC_NUMBER (R_PPC_GLOB_DAT, 20)
56 RELOC_NUMBER (R_PPC_JMP_SLOT, 21)
57 RELOC_NUMBER (R_PPC_RELATIVE, 22)
58 RELOC_NUMBER (R_PPC_LOCAL24PC, 23)
59 RELOC_NUMBER (R_PPC_UADDR32, 24)
60 RELOC_NUMBER (R_PPC_UADDR16, 25)
61 RELOC_NUMBER (R_PPC_REL32, 26)
62 RELOC_NUMBER (R_PPC_PLT32, 27)
63 RELOC_NUMBER (R_PPC_PLTREL32, 28)
64 RELOC_NUMBER (R_PPC_PLT16_LO, 29)
65 RELOC_NUMBER (R_PPC_PLT16_HI, 30)
66 RELOC_NUMBER (R_PPC_PLT16_HA, 31)
67 RELOC_NUMBER (R_PPC_SDAREL16, 32)
68 RELOC_NUMBER (R_PPC_SECTOFF, 33)
69 RELOC_NUMBER (R_PPC_SECTOFF_LO, 34)
70 RELOC_NUMBER (R_PPC_SECTOFF_HI, 35)
71 RELOC_NUMBER (R_PPC_SECTOFF_HA, 36)
72 RELOC_NUMBER (R_PPC_ADDR30, 37)
73
74#ifndef RELOC_MACROS_GEN_FUNC
75/* Fake relocations for branch stubs, only used internally by ld. */
76 RELOC_NUMBER (R_PPC_RELAX32, 48)
77 RELOC_NUMBER (R_PPC_RELAX32PC, 49)
78 RELOC_NUMBER (R_PPC_RELAX32_PLT, 50)
79 RELOC_NUMBER (R_PPC_RELAX32PC_PLT, 51)
80#endif
81
82 /* Relocs added to support TLS. */
83 RELOC_NUMBER (R_PPC_TLS, 67)
84 RELOC_NUMBER (R_PPC_DTPMOD32, 68)
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)
89 RELOC_NUMBER (R_PPC_TPREL32, 73)
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)
94 RELOC_NUMBER (R_PPC_DTPREL32, 78)
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)
111 RELOC_NUMBER (R_PPC_TLSGD, 95)
112 RELOC_NUMBER (R_PPC_TLSLD, 96)
113
114/* The remaining relocs are from the Embedded ELF ABI, and are not
115 in the SVR4 ELF ABI. */
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)
132
133/* Support STT_GNU_IFUNC plt calls. */
134 RELOC_NUMBER (R_PPC_IRELATIVE, 248)
135
136/* These are GNU extensions used in PIC code sequences. */
137 RELOC_NUMBER (R_PPC_REL16, 249)
138 RELOC_NUMBER (R_PPC_REL16_LO, 250)
139 RELOC_NUMBER (R_PPC_REL16_HI, 251)
140 RELOC_NUMBER (R_PPC_REL16_HA, 252)
141
142/* These are GNU extensions to enable C++ vtable garbage collection. */
143 RELOC_NUMBER (R_PPC_GNU_VTINHERIT, 253)
144 RELOC_NUMBER (R_PPC_GNU_VTENTRY, 254)
145
146/* This is a phony reloc to handle any old fashioned TOC16 references
147 that may still be in object files. */
148 RELOC_NUMBER (R_PPC_TOC16, 255)
149
150END_RELOC_NUMBERS (R_PPC_max)
151
152#define IS_PPC_TLS_RELOC(R) \
153 ((R) >= R_PPC_TLS && (R) <= R_PPC_GOT_DTPREL16_HA)
154
155/* Specify the value of _GLOBAL_OFFSET_TABLE_. */
156#define DT_PPC_GOT (DT_LOPROC)
157
158/* Specify that tls descriptors should be optimized. */
159#define DT_PPC_TLSOPT (DT_LOPROC + 1)
160
161/* Processor specific flags for the ELF header e_flags field. */
162
163#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag. */
164
165#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag. */
166#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib flag. */
167
168/* Processor specific section headers, sh_type field. */
169
170#define SHT_ORDERED SHT_HIPROC /* Link editor is to sort the \
171 entries in this section \
172 based on the address \
173 specified in the associated \
174 symbol table entry. */
175
176/* Processor specific section flags, sh_flags field. */
177
178#define SHF_EXCLUDE 0x80000000 /* Link editor is to exclude \
179 this section from executable \
180 and shared objects that it \
181 builds when those objects \
182 are not to be furhter \
183 relocated. */
184
185/* Object attribute tags. */
186enum
187{
188 /* 0-3 are generic. */
189 Tag_GNU_Power_ABI_FP = 4, /* Value 1 for hard-float, 2 for
190 soft-float, 3 for single=precision
191 hard-float; 0 for not tagged or not
192 using any ABIs affected by the
193 differences. */
194
195 /* Value 1 for general purpose registers only, 2 for AltiVec
196 registers, 3 for SPE registers; 0 for not tagged or not using any
197 ABIs affected by the differences. */
198 Tag_GNU_Power_ABI_Vector = 8,
199
200 /* Value 1 for ABIs using r3/r4 for returning structures <= 8 bytes,
201 2 for ABIs using memory; 0 for not tagged or not using any ABIs
202 affected by the differences. */
203 Tag_GNU_Power_ABI_Struct_Return = 12
204};
205
206#endif /* _ELF_PPC_H */