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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

//

//==========================================================================

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// -------------------------------------------                              

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//

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// for more details.                                                        

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//

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// macros or inline functions from this file, or you compile this file      

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//==========================================================================

//#####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