1 // powerpc.h -- ELF definitions specific to EM_PPC and EM_PPC64 -*- C++ -*-
3 // Copyright (C) 2008-2019 Free Software Foundation, Inc.
4 // Written by David S. Miller <davem@davemloft.net>.
6 // This file is part of elfcpp.
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU Library General Public License
10 // as published by the Free Software Foundation; either version 2, or
11 // (at your option) any later version.
13 // In addition to the permissions in the GNU Library General Public
14 // License, the Free Software Foundation gives you unlimited
15 // permission to link the compiled version of this file into
16 // combinations with other programs, and to distribute those
17 // combinations without any restriction coming from the use of this
18 // file. (The Library Public License restrictions do apply in other
19 // respects; for example, they cover modification of the file, and
20 /// distribution when not linked into a combined executable.)
22 // This program is distributed in the hope that it will be useful, but
23 // WITHOUT ANY WARRANTY; without even the implied warranty of
24 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
25 // Library General Public License for more details.
27 // You should have received a copy of the GNU Library General Public
28 // License along with this program; if not, write to the Free Software
29 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
32 #ifndef ELFCPP_POWERPC_H
33 #define ELFCPP_POWERPC_H
38 // The relocation numbers for 32-bit and 64-bit powerpc are nearly
39 // identical. Therefore I've adopted the convention of using
40 // R_POWERPC_foo for values which are the same in R_PPC_* and R_PPC64_*.
41 // For relocations which are specific to the word size I will use
42 // R_PPC_foo or R_PPC64_foo.
49 R_POWERPC_ADDR16_LO = 4,
50 R_POWERPC_ADDR16_HI = 5,
51 R_POWERPC_ADDR16_HA = 6,
53 R_POWERPC_ADDR14_BRTAKEN = 8,
54 R_POWERPC_ADDR14_BRNTAKEN = 9,
57 R_POWERPC_REL14_BRTAKEN = 12,
58 R_POWERPC_REL14_BRNTAKEN = 13,
60 R_POWERPC_GOT16_LO = 15,
61 R_POWERPC_GOT16_HI = 16,
62 R_POWERPC_GOT16_HA = 17,
65 R_POWERPC_GLOB_DAT = 20,
66 R_POWERPC_JMP_SLOT = 21,
67 R_POWERPC_RELATIVE = 22,
69 R_POWERPC_UADDR32 = 24,
70 R_POWERPC_UADDR16 = 25,
73 R_POWERPC_PLTREL32 = 28,
74 R_POWERPC_PLT16_LO = 29,
75 R_POWERPC_PLT16_HI = 30,
76 R_POWERPC_PLT16_HA = 31,
78 R_POWERPC_SECTOFF = 33,
79 R_POWERPC_SECTOFF_LO = 34,
80 R_POWERPC_SECTOFF_HI = 35,
81 R_POWERPC_SECTOFF_HA = 36,
82 R_POWERPC_ADDR30 = 37,
84 R_PPC64_ADDR16_HIGHER = 39,
85 R_PPC64_ADDR16_HIGHERA = 40,
86 R_PPC64_ADDR16_HIGHEST = 41,
87 R_PPC64_ADDR16_HIGHESTA = 42,
91 R_PPC64_PLTREL64 = 46,
93 R_PPC64_TOC16_LO = 48,
94 R_PPC64_TOC16_HI = 49,
95 R_PPC64_TOC16_HA = 50,
97 R_PPC64_PLTGOT16 = 52,
98 R_PPC64_PLTGOT16_LO = 53,
99 R_PPC64_PLTGOT16_HI = 54,
100 R_PPC64_PLTGOT16_HA = 55,
101 R_PPC64_ADDR16_DS = 56,
102 R_PPC64_ADDR16_LO_DS = 57,
103 R_PPC64_GOT16_DS = 58,
104 R_PPC64_GOT16_LO_DS = 59,
105 R_PPC64_PLT16_LO_DS = 60,
106 R_PPC64_SECTOFF_DS = 61,
107 R_PPC64_SECTOFF_LO_DS = 62,
108 R_PPC64_TOC16_DS = 63,
109 R_PPC64_TOC16_LO_DS = 64,
110 R_PPC64_PLTGOT16_DS = 65,
111 R_PPC64_PLTGOT16_LO_DS = 66,
113 R_POWERPC_DTPMOD = 68,
114 R_POWERPC_TPREL16 = 69,
115 R_POWERPC_TPREL16_LO = 70,
116 R_POWERPC_TPREL16_HI = 71,
117 R_POWERPC_TPREL16_HA = 72,
118 R_POWERPC_TPREL = 73,
119 R_POWERPC_DTPREL16 = 74,
120 R_POWERPC_DTPREL16_LO = 75,
121 R_POWERPC_DTPREL16_HI = 76,
122 R_POWERPC_DTPREL16_HA = 77,
123 R_POWERPC_DTPREL = 78,
124 R_POWERPC_GOT_TLSGD16 = 79,
125 R_POWERPC_GOT_TLSGD16_LO = 80,
126 R_POWERPC_GOT_TLSGD16_HI = 81,
127 R_POWERPC_GOT_TLSGD16_HA = 82,
128 R_POWERPC_GOT_TLSLD16 = 83,
129 R_POWERPC_GOT_TLSLD16_LO = 84,
130 R_POWERPC_GOT_TLSLD16_HI = 85,
131 R_POWERPC_GOT_TLSLD16_HA = 86,
132 R_POWERPC_GOT_TPREL16 = 87,
133 R_POWERPC_GOT_TPREL16_LO = 88,
134 R_POWERPC_GOT_TPREL16_HI = 89,
135 R_POWERPC_GOT_TPREL16_HA = 90,
136 R_POWERPC_GOT_DTPREL16 = 91,
137 R_POWERPC_GOT_DTPREL16_LO = 92,
138 R_POWERPC_GOT_DTPREL16_HI = 93,
139 R_POWERPC_GOT_DTPREL16_HA = 94,
141 R_PPC64_TPREL16_DS = 95,
143 R_PPC64_TPREL16_LO_DS = 96,
144 R_PPC64_TPREL16_HIGHER = 97,
145 R_PPC64_TPREL16_HIGHERA = 98,
146 R_PPC64_TPREL16_HIGHEST = 99,
147 R_PPC64_TPREL16_HIGHESTA = 100,
148 R_PPC_EMB_NADDR32 = 101,
149 R_PPC64_DTPREL16_DS = 101,
150 R_PPC_EMB_NADDR16 = 102,
151 R_PPC64_DTPREL16_LO_DS = 102,
152 R_PPC_EMB_NADDR16_LO = 103,
153 R_PPC64_DTPREL16_HIGHER = 103,
154 R_PPC_EMB_NADDR16_HI = 104,
155 R_PPC64_DTPREL16_HIGHERA = 104,
156 R_PPC_EMB_NADDR16_HA = 105,
157 R_PPC64_DTPREL16_HIGHEST = 105,
158 R_PPC_EMB_SDAI16 = 106,
159 R_PPC64_DTPREL16_HIGHESTA = 106,
160 R_PPC_EMB_SDA2I16 = 107,
162 R_PPC_EMB_SDA2REL = 108,
164 R_PPC_EMB_SDA21 = 109,
165 R_PPC64_TOCSAVE = 109,
166 R_PPC_EMB_MRKREF = 110,
167 R_PPC64_ADDR16_HIGH = 110,
168 R_PPC_EMB_RELSEC16 = 111,
169 R_PPC64_ADDR16_HIGHA = 111,
170 R_PPC_EMB_RELST_LO = 112,
171 R_PPC64_TPREL16_HIGH = 112,
172 R_PPC_EMB_RELST_HI = 113,
173 R_PPC64_TPREL16_HIGHA = 113,
174 R_PPC_EMB_RELST_HA = 114,
175 R_PPC64_DTPREL16_HIGH = 114,
176 R_PPC_EMB_BIT_FLD = 115,
177 R_PPC64_DTPREL16_HIGHA = 115,
178 R_PPC_EMB_RELSDA = 116,
179 R_PPC64_REL24_NOTOC = 116,
180 R_PPC64_ADDR64_LOCAL = 117,
182 R_POWERPC_PLTSEQ = 119,
183 R_POWERPC_PLTCALL = 120,
185 R_PPC_VLE_REL8 = 216,
186 R_PPC_VLE_REL15 = 217,
187 R_PPC_VLE_REL24 = 218,
188 R_PPC_VLE_LO16A = 219,
189 R_PPC_VLE_LO16D = 220,
190 R_PPC_VLE_HI16A = 221,
191 R_PPC_VLE_HI16D = 222,
192 R_PPC_VLE_HA16A = 223,
193 R_PPC_VLE_HA16D = 224,
194 R_PPC_VLE_SDA21 = 225,
195 R_PPC_VLE_SDA21_LO = 226,
196 R_PPC_VLE_SDAREL_LO16A = 227,
197 R_PPC_VLE_SDAREL_LO16D = 228,
198 R_PPC_VLE_SDAREL_HI16A = 229,
199 R_PPC_VLE_SDAREL_HI16D = 230,
200 R_PPC_VLE_SDAREL_HA16A = 231,
201 R_PPC_VLE_SDAREL_HA16D = 232,
203 R_POWERPC_REL16DX_HA = 246,
204 R_PPC64_JMP_IREL = 247,
205 R_POWERPC_IRELATIVE = 248,
206 R_POWERPC_REL16 = 249,
207 R_POWERPC_REL16_LO = 250,
208 R_POWERPC_REL16_HI = 251,
209 R_POWERPC_REL16_HA = 252,
210 R_POWERPC_GNU_VTINHERIT = 253,
211 R_POWERPC_GNU_VTENTRY = 254,
215 // e_flags values defined for powerpc
218 EF_PPC_EMB = 0x80000000, // PowerPC embedded flag.
219 EF_PPC_RELOCATABLE = 0x00010000, // PowerPC -mrelocatable flag. */
220 EF_PPC_RELOCATABLE_LIB = 0x00008000, // PowerPC -mrelocatable-lib flag. */
223 // e_flags values defined for powerpc64
227 // 1 for original function descriptor using ABI,
228 // 2 for revised ABI without function descriptors,
229 // 0 for unspecified or not using any features affected by the differences.
233 // Object attribute tags. 0-3 are generic.
236 // FP ABI, low 2 bits:
237 // 1 for double precision hard-float,
239 // 3 for single precision hard-float.
240 // 0 for not tagged or not using any ABIs affected by the differences.
242 // 1 for ibm long double
243 // 2 for 64-bit long double
244 // 3 for IEEE long double.
245 // 0 for not tagged or not using any ABIs affected by the differences.
246 Tag_GNU_Power_ABI_FP = 4,
248 // Value 1 for general purpose registers only, 2 for AltiVec
249 // registers, 3 for SPE registers; 0 for not tagged or not using any
250 // ABIs affected by the differences.
251 Tag_GNU_Power_ABI_Vector = 8,
253 // Value 1 for ABIs using r3/r4 for returning structures <= 8 bytes,
254 // 2 for ABIs using memory; 0 for not tagged or not using any ABIs
255 // affected by the differences.
256 Tag_GNU_Power_ABI_Struct_Return = 12
269 PPC64_OPT_MULTI_TOC = 2,
270 PPC64_OPT_LOCALENTRY = 4
275 // The ELFv2 ABI uses three bits in the symbol st_other field of a
276 // function definition to specify the number of instructions between a
277 // function's global entry point and local entry point.
278 // The global entry point is used when it is necessary to set up the
279 // toc pointer (r2) for the function. Callers must enter the global
280 // entry point with r12 set to the global entry point address. On
281 // return from the function, r2 may have a different value to that
282 // which it had on entry.
283 // The local entry point is used when r2 is known to already be valid
284 // for the function. There is no requirement on r12 when using the
285 // local entry point, and on return r2 will contain the same value as
287 // A value of zero in these bits means that the function has a single
288 // entry point with no requirement on r12 or r2, and that on return r2
289 // will contain the same value as at entry.
290 // Values of one and seven are reserved.
292 STO_PPC64_LOCAL_BIT = 5,
293 STO_PPC64_LOCAL_MASK = 0xE0
296 // 3 bit other field to bytes.
297 static inline unsigned int
298 ppc64_decode_local_entry(unsigned int other)
300 return ((1 << other) >> 2) << 2;
303 // bytes to field value.
304 static inline unsigned int
305 ppc64_encode_local_entry(unsigned int val)
309 ? (val >= 16 * 4 ? 6 : 5)
313 : (val >= 1 * 4 ? 2 : 0)));
316 } // End namespace elfcpp.
318 #endif // !defined(ELFCPP_POWERPC_H)