FreeBSD/Linux Kernel Cross Reference
sys/sys/elf_generic.h

     /*-
      * Copyright (c) 1998 John D. Polstra.
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD: src/sys/sys/elf_generic.h,v 1.4 1999/08/28 00:51:42 peter Exp $
     */
    
    #ifndef _SYS_ELF_GENERIC_H_
    #define _SYS_ELF_GENERIC_H_
    
    #ifndef _SYS_CDEFS_H_
    #include <sys/cdefs.h>
    #endif
    #include <machine/endian.h>
    
    /*
     * Definitions of generic ELF names which relieve applications from
     * needing to know the word size.
     */
    #ifdef __ELF_WORD_SIZE
    
    #if __ELF_WORD_SIZE != 32 && __ELF_WORD_SIZE != 64
    #error "__ELF_WORD_SIZE must be defined as 32 or 64"
    #endif
    
    #define ELF_CLASS       __CONCAT(ELFCLASS,__ELF_WORD_SIZE)
    
    #if _BYTE_ORDER == _LITTLE_ENDIAN
    #define ELF_DATA        ELFDATA2LSB
    #elif _BYTE_ORDER == _BIG_ENDIAN
    #define ELF_DATA        ELFDATA2MSB
    #else
    #error "Unknown byte order"
    #endif
    
    #define __elfN(x)       __CONCAT(__CONCAT(__CONCAT(elf,__ELF_WORD_SIZE),_),x)
    #define __ElfN(x)       __CONCAT(__CONCAT(__CONCAT(Elf,__ELF_WORD_SIZE),_),x)
    #define __ELFN(x)       __CONCAT(__CONCAT(__CONCAT(ELF,__ELF_WORD_SIZE),_),x)
    #define __ElfType(x)    typedef __ElfN(x) __CONCAT(Elf_,x)
    
    __ElfType(Addr);
    __ElfType(Half);
    __ElfType(Off);
    __ElfType(Sword);
    __ElfType(Word);
    __ElfType(Ehdr);
    __ElfType(Shdr);
    __ElfType(Phdr);
    __ElfType(Dyn);
    __ElfType(Rel);
    __ElfType(Rela);
    __ElfType(Sym);
    __ElfType(Verdef);
    __ElfType(Verdaux);
    __ElfType(Verneed);
    __ElfType(Vernaux);
    __ElfType(Versym);
    
    /* Non-standard ELF types. */
    __ElfType(Hashelt);
    __ElfType(Size);
    
    #define ELF_R_SYM       __ELFN(R_SYM)
    #define ELF_R_TYPE      __ELFN(R_TYPE)
    #define ELF_R_INFO      __ELFN(R_INFO)
    #define ELF_ST_BIND     __ELFN(ST_BIND)
    #define ELF_ST_TYPE     __ELFN(ST_TYPE)
    #define ELF_ST_INFO     __ELFN(ST_INFO)
    
    #else
    
    #warning "must include sys/elf32.h or sys/elf64.h before sys/elf_generic.h"
    
    #endif /* __ELF_WORD_SIZE */
    
    #endif /* !_SYS_ELF_GENERIC_H_ */

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