171 lines
7.3 KiB
C
171 lines
7.3 KiB
C
/* 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. */
|
|
|
|
/* Additional section types. */
|
|
#define SHT_ARM_EXIDX 0x70000001 /* Section holds ARM unwind info. */
|
|
|
|
/* 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"
|
|
|
|
/* Special section names. */
|
|
#define ELF_STRING_ARM_unwind ".ARM.exidx"
|
|
#define ELF_STRING_ARM_unwind_info ".ARM.extab"
|
|
#define ELF_STRING_ARM_unwind_once ".gnu.linkonce.armexidx."
|
|
#define ELF_STRING_ARM_unwind_info_once ".gnu.linkonce.armextab."
|
|
|
|
#endif /* _ELF_ARM_H */
|