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#ifndef CYGONCE_LOADER_ARM_ELF_H
#define CYGONCE_LOADER_ARM_ELF_H
//==========================================================================
//
// arm_elf.h
//
// ARM specific ELF file format support
//
//==========================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
//
// eCos 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 or (at your option) any later
// version.
//
// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// As a special exception, if other files instantiate templates or use
// macros or inline functions from this file, or you compile this file
// and link it with other works to produce a work based on this file,
// this file does not by itself cause the resulting work to be covered by
// the GNU General Public License. However the source code for this file
// must still be made available in accordance with section (3) of the GNU
// General Public License v2.
//
// This exception does not invalidate any other reasons why a work based
// on this file might be covered by the GNU General Public License.
// -------------------------------------------
// ####ECOSGPLCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): nickg
// Contributors: nickg
// Date: 2000-11-20
// Purpose: Define ARM ELF support
// Description: This file contains definitions for configuring the dynamic
// loader to deal with the ARM specific parts of the ELF
// file format.
//
// Usage:
// #include <cyg/loader/arm_elf.h>
// ...
//
//
//####DESCRIPTIONEND####
//
//==========================================================================
#include <pkgconf/system.h>
#include <pkgconf/hal.h>
#if defined(CYGPKG_HAL_ARM)
#ifndef CYG_LOADER_DYNAMIC_LD
#include <cyg/infra/cyg_type.h>
//--------------------------------------------------------------------------
// Basic definitions
#define CYG_ELF_MACHINE EM_ARM
//--------------------------------------------------------------------------
// Relocation types
// Taken from bfd/include/elf/arm.h - not currently sure which of these
// are actually used in executables.
#define R_ARM_NONE 0
#define R_ARM_PC24 1
#define R_ARM_ABS32 2
#define R_ARM_REL32 3
#define R_ARM_PC13 4
#define R_ARM_ABS16 5
#define R_ARM_ABS12 6
#define R_ARM_THM_ABS5 7
#define R_ARM_ABS8 8
#define R_ARM_SBREL32 9
#define R_ARM_THM_PC22 10
#define R_ARM_THM_PC8 11
#define R_ARM_AMP_VCALL9 12
#define R_ARM_SWI24 13
#define R_ARM_THM_SWI8 14
#define R_ARM_XPC25 15
#define R_ARM_THM_XPC22 16
#define R_ARM_COPY 20 /* copy symbol at runtime */
#define R_ARM_GLOB_DAT 21 /* create GOT entry */
#define R_ARM_JUMP_SLOT 22 /* create PLT entry */
#define R_ARM_RELATIVE 23 /* adjust by program base */
#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */
#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */
#define R_ARM_GOT32 26 /* 32 bit GOT entry */
#define R_ARM_PLT32 27 /* 32 bit PLT address */
#define R_ARM_GNU_VTENTRY 100
#define R_ARM_GNU_VTINHERIT 101
#define R_ARM_THM_PC11 102 /* Cygnus extension to abi: Thumb unconditional branch */
#define R_ARM_THM_PC9 103 /* Cygnus extension to abi: Thumb conditional branch */
#define R_ARM_RXPC25 249
#define R_ARM_RSBREL32 250
#define R_ARM_THM_RPC22 251
#define R_ARM_RREL32 252
#define R_ARM_RABS32 253
#define R_ARM_RPC24 254
#define R_ARM_RBASE 255
//--------------------------------------------------------------------------
// Processor specific customization class for Cyg_LoadObject class.
#ifdef __cplusplus
class Cyg_LoadObject_Proc :
public Cyg_LoadObject_Base
{
public:
inline Cyg_LoadObject_Proc()
: Cyg_LoadObject_Base()
{
};
inline Cyg_LoadObject_Proc( Cyg_LoaderStream& stream,
cyg_uint32 mode,
Cyg_LoaderMemAlloc *mem )
: Cyg_LoadObject_Base( stream, mode, mem )
{
};
inline ~Cyg_LoadObject_Proc() {};
cyg_code apply_rel( unsigned char type, Elf32_Word sym, Elf32_Addr offset );
cyg_code apply_rela( unsigned char type, Elf32_Word sym,
Elf32_Addr offset, Elf32_Sword addend );
};
//--------------------------------------------------------------------------
inline cyg_code Cyg_LoadObject_Proc::apply_rel( unsigned char type,
Elf32_Word sym,
Elf32_Addr offset )
{
return 0;
}
inline cyg_code Cyg_LoadObject_Proc::apply_rela( unsigned char type,
Elf32_Word sym,
Elf32_Addr offset,
Elf32_Sword addend )
{
return 0;
}
//--------------------------------------------------------------------------
#endif // __cplusplus
#else // CYG_LOADER_DYNAMIC_LD
//--------------------------------------------------------------------------
#define CYG_LOADER_DYNAMIC_PREFIX \
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") \
OUTPUT_ARCH("arm")
//--------------------------------------------------------------------------
#endif // CYG_LOADER_DYNAMIC_LD
#endif // defined(CYGPKG_HAL_ARM)
//--------------------------------------------------------------------------
#endif // ifndef CYGONCE_LOADER_ARM_ELF_H
// End of arm_elf.h
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