projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 252b5132 | 1 | /* ARM ELF support for BFD. |
| ca4ebd1e | 2 | Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. |
| 252b5132 RH |
3 | |
| 4 | This file is part of BFD, the Binary File Descriptor library. | |
| 5 | ||
| 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. | |
| 10 | ||
| 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. | |
| 15 | ||
| 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. */ | |
| 19 | ||
| 20 | #ifndef _ELF_ARM_H | |
| 21 | #define _ELF_ARM_H | |
| 22 | ||
| 23 | #include "elf/reloc-macros.h" | |
| 24 | ||
| 25 | /* Processor specific flags for the ELF header e_flags field. */ | |
| 26 | #define EF_ARM_RELEXEC 0x01 | |
| 27 | #define EF_ARM_HASENTRY 0x02 | |
| 2a7a4624 PB |
28 | #define EF_ARM_INTERWORK 0x04 |
| 29 | #define EF_ARM_APCS_26 0x08 | |
| 30 | #define EF_ARM_APCS_FLOAT 0x10 | |
| 31 | #define EF_ARM_PIC 0x20 | |
| 32 | #define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use. */ | |
| 33 | #define EF_ARM_NEW_ABI 0x80 | |
| 34 | #define EF_ARM_OLD_ABI 0x100 | |
| 35 | #define EF_ARM_SOFT_FLOAT 0x200 | |
| ca4ebd1e | 36 | #define EF_ARM_VFP_FLOAT 0x400 |
| fde78edd | 37 | #define EF_ARM_MAVERICK_FLOAT 0x800 |
| 2a7a4624 PB |
38 | |
| 39 | /* Other constants defined in the ARM ELF spec. version B-01. */ | |
| ff1c4e0d | 40 | #define EF_ARM_SYMSARESORTED 0x04 /* NB conflicts with EF_INTERWORK */ |
| 2a7a4624 PB |
41 | #define EF_ARM_DYNSYMSUSESEGIDX 0x08 /* NB conflicts with EF_APCS26 */ |
| 42 | #define EF_ARM_MAPSYMSFIRST 0x10 /* NB conflicts with EF_APCS_FLOAT */ | |
| ff1c4e0d NC |
43 | #define EF_ARM_EABIMASK 0xFF000000 |
| 44 | ||
| d507cf36 PB |
45 | /* Constants defined in AAELF. */ |
| 46 | #define EF_ARM_BE8 0x00800000 | |
| 47 | #define EF_ARM_LE8 0x00400000 | |
| 48 | ||
| ff1c4e0d NC |
49 | #define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK) |
| 50 | #define EF_ARM_EABI_UNKNOWN 0x00000000 | |
| 51 | #define EF_ARM_EABI_VER1 0x01000000 | |
| 2a7a4624 | 52 | #define EF_ARM_EABI_VER2 0x02000000 |
| d507cf36 | 53 | #define EF_ARM_EABI_VER3 0x03000000 |
| ff1c4e0d | 54 | |
| 252b5132 | 55 | /* Local aliases for some flags to match names used by COFF port. */ |
| 2a7a4624 PB |
56 | #define F_INTERWORK EF_ARM_INTERWORK |
| 57 | #define F_APCS26 EF_ARM_APCS_26 | |
| 58 | #define F_APCS_FLOAT EF_ARM_APCS_FLOAT | |
| 59 | #define F_PIC EF_ARM_PIC | |
| 60 | #define F_SOFT_FLOAT EF_ARM_SOFT_FLOAT | |
| ca4ebd1e | 61 | #define F_VFP_FLOAT EF_ARM_VFP_FLOAT |
| 252b5132 | 62 | |
| 2f0ca46a NC |
63 | /* Additional symbol types for Thumb. */ |
| 64 | #define STT_ARM_TFUNC STT_LOPROC /* A Thumb function. */ | |
| 65 | #define STT_ARM_16BIT STT_HIPROC /* A Thumb label. */ | |
| 252b5132 | 66 | |
| 40a18ebd NC |
67 | /* Additional section types. */ |
| 68 | #define SHT_ARM_EXIDX 0x70000001 /* Section holds ARM unwind info. */ | |
| 69 | ||
| 2f0ca46a NC |
70 | /* ARM-specific values for sh_flags. */ |
| 71 | #define SHF_ENTRYSECT 0x10000000 /* Section contains an entry point. */ | |
| 72 | #define SHF_COMDEF 0x80000000 /* Section may be multiply defined in the input to a link step. */ | |
| 252b5132 | 73 | |
| 2f0ca46a NC |
74 | /* ARM-specific program header flags. */ |
| 75 | #define PF_ARM_SB 0x10000000 /* Segment contains the location addressed by the static base. */ | |
| ff1c4e0d NC |
76 | #define PF_ARM_PI 0x20000000 /* Segment is position-independent. */ |
| 77 | #define PF_ARM_ABS 0x40000000 /* Segment must be loaded at its base address. */ | |
| 252b5132 RH |
78 | |
| 79 | /* Relocation types. */ | |
| 8725b940 | 80 | |
| 252b5132 | 81 | START_RELOC_NUMBERS (elf_arm_reloc_type) |
| 8725b940 NC |
82 | RELOC_NUMBER (R_ARM_NONE, 0) |
| 83 | RELOC_NUMBER (R_ARM_PC24, 1) | |
| 84 | RELOC_NUMBER (R_ARM_ABS32, 2) | |
| 85 | RELOC_NUMBER (R_ARM_REL32, 3) | |
| 86 | #ifdef OLD_ARM_ABI | |
| 87 | RELOC_NUMBER (R_ARM_ABS8, 4) | |
| 88 | RELOC_NUMBER (R_ARM_ABS16, 5) | |
| 89 | RELOC_NUMBER (R_ARM_ABS12, 6) | |
| 90 | RELOC_NUMBER (R_ARM_THM_ABS5, 7) | |
| 91 | RELOC_NUMBER (R_ARM_THM_PC22, 8) | |
| 92 | RELOC_NUMBER (R_ARM_SBREL32, 9) | |
| 93 | RELOC_NUMBER (R_ARM_AMP_VCALL9, 10) | |
| 94 | RELOC_NUMBER (R_ARM_THM_PC11, 11) /* Cygnus extension to abi: Thumb unconditional branch. */ | |
| 95 | RELOC_NUMBER (R_ARM_THM_PC9, 12) /* Cygnus extension to abi: Thumb conditional branch. */ | |
| 96 | RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 13) | |
| 97 | RELOC_NUMBER (R_ARM_GNU_VTENTRY, 14) | |
| 98 | #else /* not OLD_ARM_ABI */ | |
| 99 | RELOC_NUMBER (R_ARM_PC13, 4) | |
| 100 | RELOC_NUMBER (R_ARM_ABS16, 5) | |
| 101 | RELOC_NUMBER (R_ARM_ABS12, 6) | |
| 102 | RELOC_NUMBER (R_ARM_THM_ABS5, 7) | |
| 103 | RELOC_NUMBER (R_ARM_ABS8, 8) | |
| 104 | RELOC_NUMBER (R_ARM_SBREL32, 9) | |
| 105 | RELOC_NUMBER (R_ARM_THM_PC22, 10) | |
| 106 | RELOC_NUMBER (R_ARM_THM_PC8, 11) | |
| 107 | RELOC_NUMBER (R_ARM_AMP_VCALL9, 12) | |
| 108 | RELOC_NUMBER (R_ARM_SWI24, 13) | |
| 109 | RELOC_NUMBER (R_ARM_THM_SWI8, 14) | |
| 110 | RELOC_NUMBER (R_ARM_XPC25, 15) | |
| 111 | RELOC_NUMBER (R_ARM_THM_XPC22, 16) | |
| 112 | #endif /* not OLD_ARM_ABI */ | |
| 113 | RELOC_NUMBER (R_ARM_COPY, 20) /* Copy symbol at runtime. */ | |
| 114 | RELOC_NUMBER (R_ARM_GLOB_DAT, 21) /* Create GOT entry. */ | |
| 115 | RELOC_NUMBER (R_ARM_JUMP_SLOT, 22) /* Create PLT entry. */ | |
| 116 | RELOC_NUMBER (R_ARM_RELATIVE, 23) /* Adjust by program base. */ | |
| 117 | RELOC_NUMBER (R_ARM_GOTOFF, 24) /* 32 bit offset to GOT. */ | |
| 118 | RELOC_NUMBER (R_ARM_GOTPC, 25) /* 32 bit PC relative offset to GOT. */ | |
| 119 | RELOC_NUMBER (R_ARM_GOT32, 26) /* 32 bit GOT entry. */ | |
| 120 | RELOC_NUMBER (R_ARM_PLT32, 27) /* 32 bit PLT address. */ | |
| 121 | #ifdef OLD_ARM_ABI | |
| 122 | FAKE_RELOC (FIRST_INVALID_RELOC, 28) | |
| 123 | FAKE_RELOC (LAST_INVALID_RELOC, 249) | |
| 124 | #else /* not OLD_ARM_ABI */ | |
| 125 | FAKE_RELOC (FIRST_INVALID_RELOC1, 28) | |
| 2a7a4624 PB |
126 | FAKE_RELOC (LAST_INVALID_RELOC1, 31) |
| 127 | RELOC_NUMBER (R_ARM_ALU_PCREL7_0, 32) | |
| 128 | RELOC_NUMBER (R_ARM_ALU_PCREL15_8, 33) | |
| 129 | RELOC_NUMBER (R_ARM_ALU_PCREL23_15, 34) | |
| db6579d4 PB |
130 | RELOC_NUMBER (R_ARM_LDR_SBREL_11_0, 35) |
| 131 | RELOC_NUMBER (R_ARM_ALU_SBREL_19_12, 36) | |
| 132 | RELOC_NUMBER (R_ARM_ALU_SBREL_27_20, 37) | |
| 9c504268 | 133 | RELOC_NUMBER (R_ARM_TARGET1, 38) |
| db6579d4 PB |
134 | RELOC_NUMBER (R_ARM_ROSEGREL32, 39) |
| 135 | RELOC_NUMBER (R_ARM_V4BX, 40) | |
| eb043451 PB |
136 | RELOC_NUMBER (R_ARM_TARGET2, 41) |
| 137 | RELOC_NUMBER (R_ARM_PREL31, 42) | |
| db6579d4 | 138 | FAKE_RELOC (FIRST_INVALID_RELOC2, 43) |
| eb043451 PB |
139 | FAKE_RELOC (LAST_INVALID_RELOC2, 94) |
| 140 | RELOC_NUMBER (R_ARM_GOT_ABS, 95) | |
| 141 | RELOC_NUMBER (R_ARM_GOT_PREL, 96) | |
| 142 | RELOC_NUMBER (R_ARM_GOT_BREL12, 97) | |
| 143 | RELOC_NUMBER (R_ARM_GOTOFF12, 98) | |
| 144 | RELOC_NUMBER (R_ARM_GOTRELAX, 99) | |
| 8725b940 NC |
145 | RELOC_NUMBER (R_ARM_GNU_VTENTRY, 100) |
| 146 | RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 101) | |
| 147 | RELOC_NUMBER (R_ARM_THM_PC11, 102) /* Cygnus extension to abi: Thumb unconditional branch. */ | |
| 148 | RELOC_NUMBER (R_ARM_THM_PC9, 103) /* Cygnus extension to abi: Thumb conditional branch. */ | |
| 2a7a4624 PB |
149 | FAKE_RELOC (FIRST_INVALID_RELOC3, 104) |
| 150 | FAKE_RELOC (LAST_INVALID_RELOC3, 248) | |
| 8725b940 NC |
151 | RELOC_NUMBER (R_ARM_RXPC25, 249) |
| 152 | #endif /* not OLD_ARM_ABI */ | |
| 153 | RELOC_NUMBER (R_ARM_RSBREL32, 250) | |
| 154 | RELOC_NUMBER (R_ARM_THM_RPC22, 251) | |
| 155 | RELOC_NUMBER (R_ARM_RREL32, 252) | |
| 156 | RELOC_NUMBER (R_ARM_RABS32, 253) | |
| 157 | RELOC_NUMBER (R_ARM_RPC24, 254) | |
| 158 | RELOC_NUMBER (R_ARM_RBASE, 255) | |
| 1b452ec6 | 159 | END_RELOC_NUMBERS (R_ARM_max) |
| 252b5132 | 160 | |
| e16bb312 | 161 | /* The name of the note section used to identify arm variants. */ |
| 5a6c6817 | 162 | #define ARM_NOTE_SECTION ".note.gnu.arm.ident" |
| 40a18ebd NC |
163 | |
| 164 | /* Special section names. */ | |
| 165 | #define ELF_STRING_ARM_unwind ".ARM.exidx" | |
| 166 | #define ELF_STRING_ARM_unwind_info ".ARM.extab" | |
| 167 | #define ELF_STRING_ARM_unwind_once ".gnu.linkonce.armexidx." | |
| 168 | #define ELF_STRING_ARM_unwind_info_once ".gnu.linkonce.armextab." | |
| 169 | ||
| 8725b940 | 170 | #endif /* _ELF_ARM_H */ |