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Diffstat (limited to 'include/elf/arm.h')
| -rw-r--r-- | include/elf/arm.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/include/elf/arm.h b/include/elf/arm.h new file mode 100644 index 000000000..05ba3464f --- /dev/null +++ b/include/elf/arm.h @@ -0,0 +1,161 @@ +/* ARM ELF support for BFD. + Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. + + This file is part of BFD, the Binary File Descriptor library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _ELF_ARM_H +#define _ELF_ARM_H + +#include "elf/reloc-macros.h" + +/* Processor specific flags for the ELF header e_flags field. */ +#define EF_ARM_RELEXEC 0x01 +#define EF_ARM_HASENTRY 0x02 +#define EF_ARM_INTERWORK 0x04 +#define EF_ARM_APCS_26 0x08 +#define EF_ARM_APCS_FLOAT 0x10 +#define EF_ARM_PIC 0x20 +#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use. */ +#define EF_ARM_NEW_ABI 0x80 +#define EF_ARM_OLD_ABI 0x100 +#define EF_ARM_SOFT_FLOAT 0x200 +#define EF_ARM_VFP_FLOAT 0x400 +#define EF_ARM_MAVERICK_FLOAT 0x800 + +/* Other constants defined in the ARM ELF spec. version B-01. */ +#define EF_ARM_SYMSARESORTED 0x04 /* NB conflicts with EF_INTERWORK */ +#define EF_ARM_DYNSYMSUSESEGIDX 0x08 /* NB conflicts with EF_APCS26 */ +#define EF_ARM_MAPSYMSFIRST 0x10 /* NB conflicts with EF_APCS_FLOAT */ +#define EF_ARM_EABIMASK 0xFF000000 + +/* Constants defined in AAELF. */ +#define EF_ARM_BE8 0x00800000 +#define EF_ARM_LE8 0x00400000 + +#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK) +#define EF_ARM_EABI_UNKNOWN 0x00000000 +#define EF_ARM_EABI_VER1 0x01000000 +#define EF_ARM_EABI_VER2 0x02000000 +#define EF_ARM_EABI_VER3 0x03000000 + +/* Local aliases for some flags to match names used by COFF port. */ +#define F_INTERWORK EF_ARM_INTERWORK +#define F_APCS26 EF_ARM_APCS_26 +#define F_APCS_FLOAT EF_ARM_APCS_FLOAT +#define F_PIC EF_ARM_PIC +#define F_SOFT_FLOAT EF_ARM_SOFT_FLOAT +#define F_VFP_FLOAT EF_ARM_VFP_FLOAT + +/* Additional symbol types for Thumb. */ +#define STT_ARM_TFUNC STT_LOPROC /* A Thumb function. */ +#define STT_ARM_16BIT STT_HIPROC /* A Thumb label. */ + +/* ARM-specific values for sh_flags. */ +#define SHF_ENTRYSECT 0x10000000 /* Section contains an entry point. */ +#define SHF_COMDEF 0x80000000 /* Section may be multiply defined in the input to a link step. */ + +/* ARM-specific program header flags. */ +#define PF_ARM_SB 0x10000000 /* Segment contains the location addressed by the static base. */ +#define PF_ARM_PI 0x20000000 /* Segment is position-independent. */ +#define PF_ARM_ABS 0x40000000 /* Segment must be loaded at its base address. */ + +/* Relocation types. */ + +START_RELOC_NUMBERS (elf_arm_reloc_type) + RELOC_NUMBER (R_ARM_NONE, 0) + RELOC_NUMBER (R_ARM_PC24, 1) + RELOC_NUMBER (R_ARM_ABS32, 2) + RELOC_NUMBER (R_ARM_REL32, 3) +#ifdef OLD_ARM_ABI + RELOC_NUMBER (R_ARM_ABS8, 4) + RELOC_NUMBER (R_ARM_ABS16, 5) + RELOC_NUMBER (R_ARM_ABS12, 6) + RELOC_NUMBER (R_ARM_THM_ABS5, 7) + RELOC_NUMBER (R_ARM_THM_PC22, 8) + RELOC_NUMBER (R_ARM_SBREL32, 9) + RELOC_NUMBER (R_ARM_AMP_VCALL9, 10) + RELOC_NUMBER (R_ARM_THM_PC11, 11) /* Cygnus extension to abi: Thumb unconditional branch. */ + RELOC_NUMBER (R_ARM_THM_PC9, 12) /* Cygnus extension to abi: Thumb conditional branch. */ + RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 13) + RELOC_NUMBER (R_ARM_GNU_VTENTRY, 14) +#else /* not OLD_ARM_ABI */ + RELOC_NUMBER (R_ARM_PC13, 4) + RELOC_NUMBER (R_ARM_ABS16, 5) + RELOC_NUMBER (R_ARM_ABS12, 6) + RELOC_NUMBER (R_ARM_THM_ABS5, 7) + RELOC_NUMBER (R_ARM_ABS8, 8) + RELOC_NUMBER (R_ARM_SBREL32, 9) + RELOC_NUMBER (R_ARM_THM_PC22, 10) + RELOC_NUMBER (R_ARM_THM_PC8, 11) + RELOC_NUMBER (R_ARM_AMP_VCALL9, 12) + RELOC_NUMBER (R_ARM_SWI24, 13) + RELOC_NUMBER (R_ARM_THM_SWI8, 14) + RELOC_NUMBER (R_ARM_XPC25, 15) + RELOC_NUMBER (R_ARM_THM_XPC22, 16) +#endif /* not OLD_ARM_ABI */ + RELOC_NUMBER (R_ARM_COPY, 20) /* Copy symbol at runtime. */ + RELOC_NUMBER (R_ARM_GLOB_DAT, 21) /* Create GOT entry. */ + RELOC_NUMBER (R_ARM_JUMP_SLOT, 22) /* Create PLT entry. */ + RELOC_NUMBER (R_ARM_RELATIVE, 23) /* Adjust by program base. */ + RELOC_NUMBER (R_ARM_GOTOFF, 24) /* 32 bit offset to GOT. */ + RELOC_NUMBER (R_ARM_GOTPC, 25) /* 32 bit PC relative offset to GOT. */ + RELOC_NUMBER (R_ARM_GOT32, 26) /* 32 bit GOT entry. */ + RELOC_NUMBER (R_ARM_PLT32, 27) /* 32 bit PLT address. */ +#ifdef OLD_ARM_ABI + FAKE_RELOC (FIRST_INVALID_RELOC, 28) + FAKE_RELOC (LAST_INVALID_RELOC, 249) +#else /* not OLD_ARM_ABI */ + FAKE_RELOC (FIRST_INVALID_RELOC1, 28) + FAKE_RELOC (LAST_INVALID_RELOC1, 31) + RELOC_NUMBER (R_ARM_ALU_PCREL7_0, 32) + RELOC_NUMBER (R_ARM_ALU_PCREL15_8, 33) + RELOC_NUMBER (R_ARM_ALU_PCREL23_15, 34) + RELOC_NUMBER (R_ARM_LDR_SBREL_11_0, 35) + RELOC_NUMBER (R_ARM_ALU_SBREL_19_12, 36) + RELOC_NUMBER (R_ARM_ALU_SBREL_27_20, 37) + RELOC_NUMBER (R_ARM_TARGET1, 38) + RELOC_NUMBER (R_ARM_ROSEGREL32, 39) + RELOC_NUMBER (R_ARM_V4BX, 40) + RELOC_NUMBER (R_ARM_TARGET2, 41) + RELOC_NUMBER (R_ARM_PREL31, 42) + FAKE_RELOC (FIRST_INVALID_RELOC2, 43) + FAKE_RELOC (LAST_INVALID_RELOC2, 94) + RELOC_NUMBER (R_ARM_GOT_ABS, 95) + RELOC_NUMBER (R_ARM_GOT_PREL, 96) + RELOC_NUMBER (R_ARM_GOT_BREL12, 97) + RELOC_NUMBER (R_ARM_GOTOFF12, 98) + RELOC_NUMBER (R_ARM_GOTRELAX, 99) + RELOC_NUMBER (R_ARM_GNU_VTENTRY, 100) + RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 101) + RELOC_NUMBER (R_ARM_THM_PC11, 102) /* Cygnus extension to abi: Thumb unconditional branch. */ + RELOC_NUMBER (R_ARM_THM_PC9, 103) /* Cygnus extension to abi: Thumb conditional branch. */ + FAKE_RELOC (FIRST_INVALID_RELOC3, 104) + FAKE_RELOC (LAST_INVALID_RELOC3, 248) + RELOC_NUMBER (R_ARM_RXPC25, 249) +#endif /* not OLD_ARM_ABI */ + RELOC_NUMBER (R_ARM_RSBREL32, 250) + RELOC_NUMBER (R_ARM_THM_RPC22, 251) + RELOC_NUMBER (R_ARM_RREL32, 252) + RELOC_NUMBER (R_ARM_RABS32, 253) + RELOC_NUMBER (R_ARM_RPC24, 254) + RELOC_NUMBER (R_ARM_RBASE, 255) +END_RELOC_NUMBERS (R_ARM_max) + +/* The name of the note section used to identify arm variants. */ +#define ARM_NOTE_SECTION ".note.gnu.arm.ident" + +#endif /* _ELF_ARM_H */ |