The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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

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    1 /*-
    2  * Copyright (c) 2001 David E. O'Brien
    3  * Copyright (c) 1996-1997 John D. Polstra.
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  *
   27  * $FreeBSD: releng/5.0/sys/arm/include/elf.h 84783 2001-10-10 23:06:54Z ps $
   28  */
   29 
   30 #ifndef _MACHINE_ELF_H_
   31 #define _MACHINE_ELF_H_ 1
   32 
   33 /*
   34  * EABI ELF definitions for the StrongARM architecture.
   35  * See "ARM ELF", document no. `SWS ESPC 0003 A-08' for details.
   36  */
   37 
   38 #include <sys/elf32.h>  /* Definitions common to all 32 bit architectures. */
   39 
   40 #define __ELF_WORD_SIZE 32      /* Used by <sys/elf_generic.h> */
   41 #include <sys/elf_generic.h>
   42 
   43 #define ELF_ARCH        EM_ARM
   44 
   45 #define ELF_MACHINE_OK(x) ((x) == EM_ARM)
   46 
   47 /*
   48  * Relocation types.
   49  */
   50 
   51 #define R_ARM_NONE              0       /* No relocation. */
   52 #define R_ARM_PC24              1
   53 #define R_ARM_ABS32             2
   54 #define R_ARM_REL32             3
   55 #define R_ARM_PC13              4
   56 #define R_ARM_ABS16             5
   57 #define R_ARM_ABS12             6
   58 #define R_ARM_THM_ABS5          7
   59 #define R_ARM_ABS8              8
   60 #define R_ARM_SBREL32           9
   61 #define R_ARM_THM_PC22          10
   62 #define R_ARM_THM_PC8           11
   63 #define R_ARM_AMP_VCALL9        12
   64 #define R_ARM_SWI24             13
   65 #define R_ARM_THM_SWI8          14
   66 #define R_ARM_XPC25             15
   67 #define R_ARM_THM_XPC22         16
   68 #define R_ARM_COPY              20      /* Copy data from shared object. */
   69 #define R_ARM_GLOB_DAT          21      /* Set GOT entry to data address. */
   70 #define R_ARM_JUMP_SLOT         22      /* Set GOT entry to code address. */
   71 #define R_ARM_RELATIVE          23      /* Add load address of shared object. */
   72 #define R_ARM_GOTOFF            24      /* Add GOT-relative symbol address. *
   73 #define R_ARM_GOTPC             25      /* Add PC-relative GOT table address. */
   74 #define R_ARM_GOT32             26      /* Add PC-relative GOT offset. */
   75 #define R_ARM_PLT32             27      /* Add PC-relative PLT offset. */
   76 #define R_ARM_GNU_VTENTRY       100
   77 #define R_ARM_GNU_VTINHERIT     101
   78 #define R_ARM_RSBREL32          250
   79 #define R_ARM_THM_RPC22         251
   80 #define R_ARM_RREL32            252
   81 #define R_ARM_RABS32            253
   82 #define R_ARM_RPC24             254
   83 #define R_ARM_RBASE             255
   84 
   85 #define R_ARM_COUNT             33      /* Count of defined relocation types. */
   86 
   87 
   88 /* Define "machine" characteristics */
   89 #define ELF_TARG_CLASS  ELFCLASS32
   90 #define ELF_TARG_DATA   ELFDATA2LSB
   91 #define ELF_TARG_MACH   EM_ARM
   92 #define ELF_TARG_VER    1
   93 
   94 #ifdef _KERNEL
   95 
   96 /*
   97  * On the StrongARM we load the dynamic linker where a userland call
   98  * to mmap(0, ...) would put it.  The rationale behind this
   99  * calculation is that it leaves room for the heap to grow to
  100  * its maximum allowed size.
  101  */
  102 #define ELF_RTLD_ADDR(vmspace) \
  103     (round_page((vm_offset_t)(vmspace)->vm_daddr + maxdsiz))
  104 
  105 #endif /* _KERNEL */
  106 #endif /* !_MACHINE_ELF_H_ */

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