Import binutils-2.20
[dragonfly.git] / contrib / binutils-2.20 / include / elf / arm.h
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8e158dd0
SS
1/* ARM ELF support for BFD.
2 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2009
3 Free Software Foundation, Inc.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software Foundation,
19 Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
20
21#ifndef _ELF_ARM_H
22#define _ELF_ARM_H
23
24#include "elf/reloc-macros.h"
25
26/* Processor specific flags for the ELF header e_flags field. */
27#define EF_ARM_RELEXEC 0x01
28#define EF_ARM_HASENTRY 0x02
29#define EF_ARM_INTERWORK 0x04
30#define EF_ARM_APCS_26 0x08
31#define EF_ARM_APCS_FLOAT 0x10
32#define EF_ARM_PIC 0x20
33#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use. */
34#define EF_ARM_NEW_ABI 0x80
35#define EF_ARM_OLD_ABI 0x100
36#define EF_ARM_SOFT_FLOAT 0x200
37#define EF_ARM_VFP_FLOAT 0x400
38#define EF_ARM_MAVERICK_FLOAT 0x800
39
40/* Frame unwind information */
41#define PT_ARM_EXIDX (PT_LOPROC + 1)
42
43/* Other constants defined in the ARM ELF spec. version B-01. */
44#define EF_ARM_SYMSARESORTED 0x04 /* NB conflicts with EF_INTERWORK. */
45#define EF_ARM_DYNSYMSUSESEGIDX 0x08 /* NB conflicts with EF_APCS26. */
46#define EF_ARM_MAPSYMSFIRST 0x10 /* NB conflicts with EF_APCS_FLOAT. */
47#define EF_ARM_EABIMASK 0xFF000000
48
49/* Constants defined in AAELF. */
50#define EF_ARM_BE8 0x00800000
51#define EF_ARM_LE8 0x00400000
52
53#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK)
54#define EF_ARM_EABI_UNKNOWN 0x00000000
55#define EF_ARM_EABI_VER1 0x01000000
56#define EF_ARM_EABI_VER2 0x02000000
57#define EF_ARM_EABI_VER3 0x03000000
58#define EF_ARM_EABI_VER4 0x04000000
59#define EF_ARM_EABI_VER5 0x05000000
60
61/* Local aliases for some flags to match names used by COFF port. */
62#define F_INTERWORK EF_ARM_INTERWORK
63#define F_APCS26 EF_ARM_APCS_26
64#define F_APCS_FLOAT EF_ARM_APCS_FLOAT
65#define F_PIC EF_ARM_PIC
66#define F_SOFT_FLOAT EF_ARM_SOFT_FLOAT
67#define F_VFP_FLOAT EF_ARM_VFP_FLOAT
68
69/* Additional symbol types for Thumb. */
70#define STT_ARM_TFUNC STT_LOPROC /* A Thumb function. */
71#define STT_ARM_16BIT STT_HIPROC /* A Thumb label. */
72
73/* Additional section types. */
74#define SHT_ARM_EXIDX 0x70000001 /* Section holds ARM unwind info. */
75#define SHT_ARM_PREEMPTMAP 0x70000002 /* Section pre-emption details. */
76#define SHT_ARM_ATTRIBUTES 0x70000003 /* Section holds attributes. */
77#define SHT_ARM_DEBUGOVERLAY 0x70000004 /* Section holds overlay debug info. */
78#define SHT_ARM_OVERLAYSECTION 0x70000005 /* Section holds GDB and overlay integration info. */
79
80/* ARM-specific values for sh_flags. */
81#define SHF_ENTRYSECT 0x10000000 /* Section contains an entry point. */
82#define SHF_COMDEF 0x80000000 /* Section may be multiply defined in the input to a link step. */
83
84/* ARM-specific program header flags. */
85#define PF_ARM_SB 0x10000000 /* Segment contains the location addressed by the static base. */
86#define PF_ARM_PI 0x20000000 /* Segment is position-independent. */
87#define PF_ARM_ABS 0x40000000 /* Segment must be loaded at its base address. */
88
89/* Values for the Tag_CPU_arch EABI attribute. */
90#define TAG_CPU_ARCH_PRE_V4 0
91#define TAG_CPU_ARCH_V4 1
92#define TAG_CPU_ARCH_V4T 2
93#define TAG_CPU_ARCH_V5T 3
94#define TAG_CPU_ARCH_V5TE 4
95#define TAG_CPU_ARCH_V5TEJ 5
96#define TAG_CPU_ARCH_V6 6
97#define TAG_CPU_ARCH_V6KZ 7
98#define TAG_CPU_ARCH_V6T2 8
99#define TAG_CPU_ARCH_V6K 9
100#define TAG_CPU_ARCH_V7 10
101#define TAG_CPU_ARCH_V6_M 11
102#define TAG_CPU_ARCH_V6S_M 12
103#define MAX_TAG_CPU_ARCH 12
104/* Pseudo-architecture to allow objects to be compatible with the subset of
105 armv4t and armv6-m. This value should never be stored in object files. */
106#define TAG_CPU_ARCH_V4T_PLUS_V6_M (MAX_TAG_CPU_ARCH + 1)
107
108/* Relocation types. */
109
110START_RELOC_NUMBERS (elf_arm_reloc_type)
111/* AAELF official names and numbers. */
112 RELOC_NUMBER (R_ARM_NONE, 0)
113 RELOC_NUMBER (R_ARM_PC24, 1) /* deprecated */
114 RELOC_NUMBER (R_ARM_ABS32, 2)
115 RELOC_NUMBER (R_ARM_REL32, 3)
116 RELOC_NUMBER (R_ARM_LDR_PC_G0, 4)
117 RELOC_NUMBER (R_ARM_ABS16, 5)
118 RELOC_NUMBER (R_ARM_ABS12, 6)
119 RELOC_NUMBER (R_ARM_THM_ABS5, 7)
120 RELOC_NUMBER (R_ARM_ABS8, 8)
121 RELOC_NUMBER (R_ARM_SBREL32, 9)
122 RELOC_NUMBER (R_ARM_THM_CALL, 10)
123 RELOC_NUMBER (R_ARM_THM_PC8, 11)
124 RELOC_NUMBER (R_ARM_BREL_ADJ, 12)
125 RELOC_NUMBER (R_ARM_SWI24, 13) /* obsolete */
126 RELOC_NUMBER (R_ARM_THM_SWI8, 14) /* obsolete */
127 RELOC_NUMBER (R_ARM_XPC25, 15) /* obsolete */
128 RELOC_NUMBER (R_ARM_THM_XPC22, 16) /* obsolete */
129 RELOC_NUMBER (R_ARM_TLS_DTPMOD32, 17)
130 RELOC_NUMBER (R_ARM_TLS_DTPOFF32, 18)
131 RELOC_NUMBER (R_ARM_TLS_TPOFF32, 19)
132 RELOC_NUMBER (R_ARM_COPY, 20) /* Copy symbol at runtime. */
133 RELOC_NUMBER (R_ARM_GLOB_DAT, 21) /* Create GOT entry. */
134 RELOC_NUMBER (R_ARM_JUMP_SLOT, 22) /* Create PLT entry. */
135 RELOC_NUMBER (R_ARM_RELATIVE, 23) /* Adjust by program base. */
136 RELOC_NUMBER (R_ARM_GOTOFF32, 24) /* 32 bit offset to GOT. */
137 RELOC_NUMBER (R_ARM_BASE_PREL, 25) /* 32 bit PC relative offset to GOT. */
138 RELOC_NUMBER (R_ARM_GOT_BREL, 26) /* 32 bit GOT entry. */
139 RELOC_NUMBER (R_ARM_PLT32, 27) /* deprecated - 32 bit PLT address. */
140 RELOC_NUMBER (R_ARM_CALL, 28)
141 RELOC_NUMBER (R_ARM_JUMP24, 29)
142 RELOC_NUMBER (R_ARM_THM_JUMP24, 30)
143 RELOC_NUMBER (R_ARM_BASE_ABS, 31)
144 RELOC_NUMBER (R_ARM_ALU_PCREL7_0, 32) /* obsolete */
145 RELOC_NUMBER (R_ARM_ALU_PCREL15_8, 33) /* obsolete */
146 RELOC_NUMBER (R_ARM_ALU_PCREL23_15, 34) /* obsolete */
147 RELOC_NUMBER (R_ARM_LDR_SBREL_11_0, 35) /* deprecated, should have _NC suffix */
148 RELOC_NUMBER (R_ARM_ALU_SBREL_19_12, 36) /* deprecated, should have _NC suffix */
149 RELOC_NUMBER (R_ARM_ALU_SBREL_27_20, 37) /* deprecated, should have _CK suffix */
150 RELOC_NUMBER (R_ARM_TARGET1, 38)
151 RELOC_NUMBER (R_ARM_SBREL31, 39) /* deprecated */
152 RELOC_NUMBER (R_ARM_V4BX, 40)
153 RELOC_NUMBER (R_ARM_TARGET2, 41)
154 RELOC_NUMBER (R_ARM_PREL31, 42)
155 RELOC_NUMBER (R_ARM_MOVW_ABS_NC, 43)
156 RELOC_NUMBER (R_ARM_MOVT_ABS, 44)
157 RELOC_NUMBER (R_ARM_MOVW_PREL_NC, 45)
158 RELOC_NUMBER (R_ARM_MOVT_PREL, 46)
159 RELOC_NUMBER (R_ARM_THM_MOVW_ABS_NC, 47)
160 RELOC_NUMBER (R_ARM_THM_MOVT_ABS, 48)
161 RELOC_NUMBER (R_ARM_THM_MOVW_PREL_NC, 49)
162 RELOC_NUMBER (R_ARM_THM_MOVT_PREL, 50)
163 RELOC_NUMBER (R_ARM_THM_JUMP19, 51)
164 RELOC_NUMBER (R_ARM_THM_JUMP6, 52)
165 RELOC_NUMBER (R_ARM_THM_ALU_PREL_11_0, 53)
166 RELOC_NUMBER (R_ARM_THM_PC12, 54)
167 RELOC_NUMBER (R_ARM_ABS32_NOI, 55)
168 RELOC_NUMBER (R_ARM_REL32_NOI, 56)
169 RELOC_NUMBER (R_ARM_ALU_PC_G0_NC, 57)
170 RELOC_NUMBER (R_ARM_ALU_PC_G0, 58)
171 RELOC_NUMBER (R_ARM_ALU_PC_G1_NC, 59)
172 RELOC_NUMBER (R_ARM_ALU_PC_G1, 60)
173 RELOC_NUMBER (R_ARM_ALU_PC_G2, 61)
174 RELOC_NUMBER (R_ARM_LDR_PC_G1, 62)
175 RELOC_NUMBER (R_ARM_LDR_PC_G2, 63)
176 RELOC_NUMBER (R_ARM_LDRS_PC_G0, 64)
177 RELOC_NUMBER (R_ARM_LDRS_PC_G1, 65)
178 RELOC_NUMBER (R_ARM_LDRS_PC_G2, 66)
179 RELOC_NUMBER (R_ARM_LDC_PC_G0, 67)
180 RELOC_NUMBER (R_ARM_LDC_PC_G1, 68)
181 RELOC_NUMBER (R_ARM_LDC_PC_G2, 69)
182 RELOC_NUMBER (R_ARM_ALU_SB_G0_NC, 70)
183 RELOC_NUMBER (R_ARM_ALU_SB_G0, 71)
184 RELOC_NUMBER (R_ARM_ALU_SB_G1_NC, 72)
185 RELOC_NUMBER (R_ARM_ALU_SB_G1, 73)
186 RELOC_NUMBER (R_ARM_ALU_SB_G2, 74)
187 RELOC_NUMBER (R_ARM_LDR_SB_G0, 75)
188 RELOC_NUMBER (R_ARM_LDR_SB_G1, 76)
189 RELOC_NUMBER (R_ARM_LDR_SB_G2, 77)
190 RELOC_NUMBER (R_ARM_LDRS_SB_G0, 78)
191 RELOC_NUMBER (R_ARM_LDRS_SB_G1, 79)
192 RELOC_NUMBER (R_ARM_LDRS_SB_G2, 80)
193 RELOC_NUMBER (R_ARM_LDC_SB_G0, 81)
194 RELOC_NUMBER (R_ARM_LDC_SB_G1, 82)
195 RELOC_NUMBER (R_ARM_LDC_SB_G2, 83)
196 RELOC_NUMBER (R_ARM_MOVW_BREL_NC, 84)
197 RELOC_NUMBER (R_ARM_MOVT_BREL, 85)
198 RELOC_NUMBER (R_ARM_MOVW_BREL, 86)
199 RELOC_NUMBER (R_ARM_THM_MOVW_BREL_NC, 87)
200 RELOC_NUMBER (R_ARM_THM_MOVT_BREL, 88)
201 RELOC_NUMBER (R_ARM_THM_MOVW_BREL, 89)
202 /* 90-93 unallocated */
203 RELOC_NUMBER (R_ARM_PLT32_ABS, 94)
204 RELOC_NUMBER (R_ARM_GOT_ABS, 95)
205 RELOC_NUMBER (R_ARM_GOT_PREL, 96)
206 RELOC_NUMBER (R_ARM_GOT_BREL12, 97)
207 RELOC_NUMBER (R_ARM_GOTOFF12, 98)
208 RELOC_NUMBER (R_ARM_GOTRELAX, 99)
209 RELOC_NUMBER (R_ARM_GNU_VTENTRY, 100) /* deprecated - old C++ abi */
210 RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 101) /* deprecated - old C++ abi */
211 RELOC_NUMBER (R_ARM_THM_JUMP11, 102)
212 RELOC_NUMBER (R_ARM_THM_JUMP8, 103)
213 RELOC_NUMBER (R_ARM_TLS_GD32, 104)
214 RELOC_NUMBER (R_ARM_TLS_LDM32, 105)
215 RELOC_NUMBER (R_ARM_TLS_LDO32, 106)
216 RELOC_NUMBER (R_ARM_TLS_IE32, 107)
217 RELOC_NUMBER (R_ARM_TLS_LE32, 108)
218 RELOC_NUMBER (R_ARM_TLS_LDO12, 109)
219 RELOC_NUMBER (R_ARM_TLS_LE12, 110)
220 RELOC_NUMBER (R_ARM_TLS_IE12GP, 111)
221 /* 112 - 127 private range */
222 RELOC_NUMBER (R_ARM_ME_TOO, 128) /* obsolete */
223
224 /* Extensions? R=read-only? */
225 RELOC_NUMBER (R_ARM_RXPC25, 249)
226 RELOC_NUMBER (R_ARM_RSBREL32, 250)
227 RELOC_NUMBER (R_ARM_THM_RPC22, 251)
228 RELOC_NUMBER (R_ARM_RREL32, 252)
229 RELOC_NUMBER (R_ARM_RABS32, 253)
230 RELOC_NUMBER (R_ARM_RPC24, 254)
231 RELOC_NUMBER (R_ARM_RBASE, 255)
232
233 /* Unofficial names for some of the relocs. */
234 FAKE_RELOC (R_ARM_GOTOFF, R_ARM_GOTOFF32) /* 32 bit offset to GOT. */
235 FAKE_RELOC (R_ARM_THM_PC22, R_ARM_THM_CALL)
236 FAKE_RELOC (R_ARM_THM_PC11, R_ARM_THM_JUMP11)
237 FAKE_RELOC (R_ARM_THM_PC9, R_ARM_THM_JUMP8)
238
239 /* Relocs with both a different name, and (apparently) different meaning in
240 GNU usage. */
241 FAKE_RELOC (R_ARM_GOTPC, R_ARM_BASE_PREL) /* 32 bit PC relative offset to GOT. */
242 FAKE_RELOC (R_ARM_GOT32, R_ARM_GOT_BREL) /* 32 bit GOT entry. */
243 FAKE_RELOC (R_ARM_ROSEGREL32, R_ARM_SBREL31) /* ??? */
244 FAKE_RELOC (R_ARM_AMP_VCALL9, R_ARM_BREL_ADJ) /* Thumb-something. Not used. */
245
246END_RELOC_NUMBERS (R_ARM_max = 256)
247
248#ifdef BFD_ARCH_SIZE
249/* EABI object attributes. */
250
251enum
252{
253 /* 0-3 are generic. */
254 Tag_CPU_raw_name = 4,
255 Tag_CPU_name,
256 Tag_CPU_arch,
257 Tag_CPU_arch_profile,
258 Tag_ARM_ISA_use,
259 Tag_THUMB_ISA_use,
260 Tag_VFP_arch,
261 Tag_WMMX_arch,
262 Tag_Advanced_SIMD_arch,
263 Tag_PCS_config,
264 Tag_ABI_PCS_R9_use,
265 Tag_ABI_PCS_RW_data,
266 Tag_ABI_PCS_RO_data,
267 Tag_ABI_PCS_GOT_use,
268 Tag_ABI_PCS_wchar_t,
269 Tag_ABI_FP_rounding,
270 Tag_ABI_FP_denormal,
271 Tag_ABI_FP_exceptions,
272 Tag_ABI_FP_user_exceptions,
273 Tag_ABI_FP_number_model,
274 Tag_ABI_align8_needed,
275 Tag_ABI_align8_preserved,
276 Tag_ABI_enum_size,
277 Tag_ABI_HardFP_use,
278 Tag_ABI_VFP_args,
279 Tag_ABI_WMMX_args,
280 Tag_ABI_optimization_goals,
281 Tag_ABI_FP_optimization_goals,
282 /* 32 is generic (Tag_compatibility). */
283 Tag_undefined33 = 33,
284 Tag_CPU_unaligned_access,
285 Tag_undefined35,
286 Tag_VFP_HP_extension,
287 Tag_undefined37,
288 Tag_ABI_FP_16bit_format,
289 Tag_undefined39,
290 Tag_nodefaults = 64,
291 Tag_also_compatible_with,
292 Tag_T2EE_use,
293 Tag_conformance,
294 Tag_Virtualization_use,
295 Tag_undefined69,
296 Tag_MPextension_use
297};
298
299#endif
300
301/* The name of the note section used to identify arm variants. */
302#define ARM_NOTE_SECTION ".note.gnu.arm.ident"
303
304/* Special section names. */
305#define ELF_STRING_ARM_unwind ".ARM.exidx"
306#define ELF_STRING_ARM_unwind_info ".ARM.extab"
307#define ELF_STRING_ARM_unwind_once ".gnu.linkonce.armexidx."
308#define ELF_STRING_ARM_unwind_info_once ".gnu.linkonce.armextab."
309
310#endif /* _ELF_ARM_H */