FreeBSD/Linux Kernel Cross Reference
sys/arm/include/elf.h

     /*-
      * Copyright (c) 2001 David E. O'Brien
      * Copyright (c) 1996-1997 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: releng/5.1/sys/arm/include/elf.h 84783 2001-10-10 23:06:54Z ps $
     */
    
    #ifndef _MACHINE_ELF_H_
    #define _MACHINE_ELF_H_ 1
    
    /*
     * EABI ELF definitions for the StrongARM architecture.
     * See "ARM ELF", document no. `SWS ESPC 0003 A-08' for details.
     */
    
    #include <sys/elf32.h>  /* Definitions common to all 32 bit architectures. */
    
    #define __ELF_WORD_SIZE 32      /* Used by <sys/elf_generic.h> */
    #include <sys/elf_generic.h>
    
    #define ELF_ARCH        EM_ARM
    
    #define ELF_MACHINE_OK(x) ((x) == EM_ARM)
    
    /*
     * Relocation types.
     */
    
    #define R_ARM_NONE              0       /* No relocation. */
    #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 data from shared object. */
    #define R_ARM_GLOB_DAT          21      /* Set GOT entry to data address. */
    #define R_ARM_JUMP_SLOT         22      /* Set GOT entry to code address. */
    #define R_ARM_RELATIVE          23      /* Add load address of shared object. */
    #define R_ARM_GOTOFF            24      /* Add GOT-relative symbol address. *
    #define R_ARM_GOTPC             25      /* Add PC-relative GOT table address. */
    #define R_ARM_GOT32             26      /* Add PC-relative GOT offset. */
    #define R_ARM_PLT32             27      /* Add PC-relative PLT offset. */
    #define R_ARM_GNU_VTENTRY       100
    #define R_ARM_GNU_VTINHERIT     101
    #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
    
    #define R_ARM_COUNT             33      /* Count of defined relocation types. */
    
    
    /* Define "machine" characteristics */
    #define ELF_TARG_CLASS  ELFCLASS32
    #define ELF_TARG_DATA   ELFDATA2LSB
    #define ELF_TARG_MACH   EM_ARM
    #define ELF_TARG_VER    1
    
    #ifdef _KERNEL
    
    /*
     * On the StrongARM we load the dynamic linker where a userland call
     * to mmap(0, ...) would put it.  The rationale behind this
     * calculation is that it leaves room for the heap to grow to
    * its maximum allowed size.
    */
   #define ELF_RTLD_ADDR(vmspace) \
       (round_page((vm_offset_t)(vmspace)->vm_daddr + maxdsiz))
   
   #endif /* _KERNEL */
   #endif /* !_MACHINE_ELF_H_ */

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