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#ifndef CYGONCE_LOADER_ARM_ELF_H
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#define CYGONCE_LOADER_ARM_ELF_H
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//==========================================================================
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//
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// arm_elf.h
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//
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// ARM specific ELF file format support
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//
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//==========================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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//
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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//
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// at http://sources.redhat.com/ecos/ecos-license/
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): nickg
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// Contributors: nickg
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// Date: 2000-11-20
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// Purpose: Define ARM ELF support
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// Description: This file contains definitions for configuring the dynamic
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// loader to deal with the ARM specific parts of the ELF
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// file format.
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//
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// Usage:
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// #include <cyg/loader/arm_elf.h>
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// ...
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//
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//
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//####DESCRIPTIONEND####
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//
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//==========================================================================
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#include <pkgconf/system.h>
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#include <pkgconf/hal.h>
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#if defined(CYGPKG_HAL_ARM)
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#ifndef CYG_LOADER_DYNAMIC_LD
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#include <cyg/infra/cyg_type.h>
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//--------------------------------------------------------------------------
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// Basic definitions
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#define CYG_ELF_MACHINE EM_ARM
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//--------------------------------------------------------------------------
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// Relocation types
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// Taken from bfd/include/elf/arm.h - not currently sure which of these
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// are actually used in executables.
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#define R_ARM_NONE 0
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#define R_ARM_PC24 1
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#define R_ARM_ABS32 2
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#define R_ARM_REL32 3
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#define R_ARM_PC13 4
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#define R_ARM_ABS16 5
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#define R_ARM_ABS12 6
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#define R_ARM_THM_ABS5 7
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#define R_ARM_ABS8 8
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#define R_ARM_SBREL32 9
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#define R_ARM_THM_PC22 10
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#define R_ARM_THM_PC8 11
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#define R_ARM_AMP_VCALL9 12
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#define R_ARM_SWI24 13
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#define R_ARM_THM_SWI8 14
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#define R_ARM_XPC25 15
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#define R_ARM_THM_XPC22 16
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#define R_ARM_COPY 20 /* copy symbol at runtime */
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#define R_ARM_GLOB_DAT 21 /* create GOT entry */
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#define R_ARM_JUMP_SLOT 22 /* create PLT entry */
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#define R_ARM_RELATIVE 23 /* adjust by program base */
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#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */
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#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */
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#define R_ARM_GOT32 26 /* 32 bit GOT entry */
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#define R_ARM_PLT32 27 /* 32 bit PLT address */
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#define R_ARM_GNU_VTENTRY 100
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#define R_ARM_GNU_VTINHERIT 101
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#define R_ARM_THM_PC11 102 /* Cygnus extension to abi: Thumb unconditional branch */
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#define R_ARM_THM_PC9 103 /* Cygnus extension to abi: Thumb conditional branch */
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#define R_ARM_RXPC25 249
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#define R_ARM_RSBREL32 250
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#define R_ARM_THM_RPC22 251
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#define R_ARM_RREL32 252
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#define R_ARM_RABS32 253
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#define R_ARM_RPC24 254
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#define R_ARM_RBASE 255
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//--------------------------------------------------------------------------
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// Processor specific customization class for Cyg_LoadObject class.
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#ifdef __cplusplus
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class Cyg_LoadObject_Proc :
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public Cyg_LoadObject_Base
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{
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public:
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inline Cyg_LoadObject_Proc()
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: Cyg_LoadObject_Base()
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{
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};
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inline Cyg_LoadObject_Proc( Cyg_LoaderStream& stream,
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cyg_uint32 mode,
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Cyg_LoaderMemAlloc *mem )
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: Cyg_LoadObject_Base( stream, mode, mem )
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{
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};
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inline ~Cyg_LoadObject_Proc() {};
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cyg_code apply_rel( unsigned char type, Elf32_Word sym, Elf32_Addr offset );
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cyg_code apply_rela( unsigned char type, Elf32_Word sym,
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Elf32_Addr offset, Elf32_Sword addend );
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};
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//--------------------------------------------------------------------------
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inline cyg_code Cyg_LoadObject_Proc::apply_rel( unsigned char type,
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Elf32_Word sym,
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Elf32_Addr offset )
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{
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return 0;
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}
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inline cyg_code Cyg_LoadObject_Proc::apply_rela( unsigned char type,
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Elf32_Word sym,
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Elf32_Addr offset,
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Elf32_Sword addend )
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{
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return 0;
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}
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//--------------------------------------------------------------------------
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#endif // __cplusplus
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#else // CYG_LOADER_DYNAMIC_LD
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//--------------------------------------------------------------------------
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#define CYG_LOADER_DYNAMIC_PREFIX \
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OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") \
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OUTPUT_ARCH("arm")
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//--------------------------------------------------------------------------
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#endif // CYG_LOADER_DYNAMIC_LD
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#endif // defined(CYGPKG_HAL_ARM)
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//--------------------------------------------------------------------------
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#endif // ifndef CYGONCE_LOADER_ARM_ELF_H
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// End of arm_elf.h
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