1 /* ARM ELF support for BFD.
2 Copyright (C) 1998, 1999 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software Foundation,
18 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23 #include "elf/reloc-macros.h"
25 /* Processor specific flags for the ELF header e_flags field. */
26 #define EF_ARM_RELEXEC 0x01
27 #define EF_ARM_HASENTRY 0x02
28 #define EF_INTERWORK 0x04
29 #define EF_APCS_26 0x08
30 #define EF_APCS_FLOAT 0x10
32 #define EF_ALIGN8 0x40 /* 8-bit structure alignment is in use */
33 #define EF_NEW_ABI 0x80
34 #define EF_OLD_ABI 0x100
36 /* Local aliases for some flags to match names used by COFF port. */
37 #define F_INTERWORK EF_INTERWORK
38 #define F_APCS26 EF_APCS_26
39 #define F_APCS_FLOAT EF_APCS_FLOAT
42 /* Additional symbol types for Thumb */
43 #define STT_ARM_TFUNC 0xd
45 /* ARM-specific values for sh_flags */
46 #define SHF_ENTRYSECT 0x10000000 /* Section contains an entry point */
47 #define SHF_COMDEF 0x80000000 /* Section may be multiply defined in the input to a link step */
49 /* ARM-specific program header flags */
50 #define PF_ARM_SB 0x10000000 /* Segment contains the location addressed by the static base */
52 /* Relocation types. */
53 START_RELOC_NUMBERS (elf_arm_reloc_type
)
54 RELOC_NUMBER (R_ARM_NONE
, 0)
55 RELOC_NUMBER (R_ARM_PC24
, 1)
56 RELOC_NUMBER (R_ARM_ABS32
, 2)
57 RELOC_NUMBER (R_ARM_REL32
, 3)
58 RELOC_NUMBER (R_ARM_PC13
, 4)
59 RELOC_NUMBER (R_ARM_ABS16
, 5)
60 RELOC_NUMBER (R_ARM_ABS12
, 6)
61 RELOC_NUMBER (R_ARM_THM_ABS5
, 7)
62 RELOC_NUMBER (R_ARM_ABS8
, 8)
63 RELOC_NUMBER (R_ARM_SBREL32
, 9)
64 RELOC_NUMBER (R_ARM_THM_PC22
, 10)
65 RELOC_NUMBER (R_ARM_THM_PC8
, 11)
66 RELOC_NUMBER (R_ARM_AMP_VCALL9
, 12)
67 RELOC_NUMBER (R_ARM_SWI24
, 13)
68 RELOC_NUMBER (R_ARM_THM_SWI8
, 14)
69 RELOC_NUMBER (R_ARM_XPC25
, 15)
70 RELOC_NUMBER (R_ARM_THM_XPC22
, 16)
71 RELOC_NUMBER (R_ARM_COPY
, 20) /* copy symbol at runtime */
72 RELOC_NUMBER (R_ARM_GLOB_DAT
, 21) /* create GOT entry */
73 RELOC_NUMBER (R_ARM_JUMP_SLOT
, 22) /* create PLT entry */
74 RELOC_NUMBER (R_ARM_RELATIVE
, 23) /* adjust by program base */
75 RELOC_NUMBER (R_ARM_GOTOFF
, 24) /* 32 bit offset to GOT */
76 RELOC_NUMBER (R_ARM_GOTPC
, 25) /* 32 bit PC relative offset to GOT */
77 RELOC_NUMBER (R_ARM_GOT32
, 26) /* 32 bit GOT entry */
78 RELOC_NUMBER (R_ARM_PLT32
, 27) /* 32 bit PLT address */
79 FAKE_RELOC (FIRST_INVALID_RELOC1
, 28)
80 FAKE_RELOC (LAST_INVALID_RELOC1
, 99)
81 RELOC_NUMBER (R_ARM_GNU_VTENTRY
, 100)
82 RELOC_NUMBER (R_ARM_GNU_VTINHERIT
, 101)
83 RELOC_NUMBER (R_ARM_THM_PC11
, 102) /* cygnus extension to abi: thumb unconditional branch */
84 RELOC_NUMBER (R_ARM_THM_PC9
, 103) /* cygnus extension to abi: thumb conditional branch */
85 FAKE_RELOC (FIRST_INVALID_RELOC2
, 104)
86 FAKE_RELOC (LAST_INVALID_RELOC2
, 248)
87 RELOC_NUMBER (R_ARM_RXPC25
, 249)
88 RELOC_NUMBER (R_ARM_RSBREL32
, 250)
89 RELOC_NUMBER (R_ARM_THM_RPC22
, 251)
90 RELOC_NUMBER (R_ARM_RREL32
, 252)
91 RELOC_NUMBER (R_ARM_RABS32
, 253)
92 RELOC_NUMBER (R_ARM_RPC24
, 254)
93 RELOC_NUMBER (R_ARM_RBASE
, 255)