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/* ARM ELF support for BFD.

   Copyright (C) 1998, 1999, 2000 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_INTERWORK       0x04

#define EF_APCS_26         0x08

#define EF_APCS_FLOAT      0x10

#define EF_PIC             0x20

#define EF_ALIGN8          0x40         /* 8-bit structure alignment is in use.  */

#define EF_NEW_ABI         0x80

#define EF_OLD_ABI         0x100

#define EF_SOFT_FLOAT      0x200

/* Other constants defined in the ARM ELF spec. version A-08.  */

#define EF_ARM_SYMSARESORTED 0x04       /* NB conflicts with EF_INTERWORK */

#define EF_ARM_EABIMASK      0xFF000000

#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK)

#define EF_ARM_EABI_UNKNOWN  0x00000000

#define EF_ARM_EABI_VER1     0x01000000

/* Local aliases for some flags to match names used by COFF port.  */

#define F_INTERWORK        EF_INTERWORK

#define F_APCS26           EF_APCS_26

#define F_APCS_FLOAT       EF_APCS_FLOAT

#define F_PIC              EF_PIC

#define F_SOFT_FLOAT       EF_SOFT_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,   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_RELOC2, 104)

  FAKE_RELOC   (LAST_INVALID_RELOC2,  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

#endif /* _ELF_ARM_H */