src/arch/alpha/aout_machdep.h

   1 /*
   2  * Copyright (c) 2003-2005 The Regents of The University of Michigan
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #ifndef __AOUT_MACHDEP_H__
  30 #define __AOUT_MACHDEP_H__
  31
  32 ///
  33 /// Funky Alpha 64-bit a.out header used for PAL code.
  34 ///
  35 struct aout_exechdr {
  36     uint16_t    magic;          ///< magic number
  37     uint16_t    vstamp;         ///< version stamp?
  38     uint16_t    bldrev;         ///< ???
  39     uint16_t    padcell;        ///< padding
  40     uint64_t    tsize;          ///< text segment size
  41     uint64_t    dsize;          ///< data segment size
  42     uint64_t    bsize;          ///< bss segment size
  43     uint64_t    entry;          ///< entry point
  44     uint64_t    text_start;     ///< text base address
  45     uint64_t    data_start;     ///< data base address
  46     uint64_t    bss_start;      ///< bss base address
  47     uint32_t    gprmask;        ///< GPR mask (unused, AFAIK)
  48     uint32_t    fprmask;        ///< FPR mask (unused, AFAIK)
  49     uint64_t    gp_value;       ///< global pointer reg value
  50 };
  51
  52 #define AOUT_LDPGSZ     8192
  53
  54 #define N_GETMAGIC(ex)  ((ex).magic)
  55
  56 #define N_BADMAX
  57
  58 #define N_TXTADDR(ex)   ((ex).text_start)
  59 #define N_DATADDR(ex)   ((ex).data_start)
  60 #define N_BSSADDR(ex)   ((ex).bss_start)
  61
  62 #define N_TXTOFF(ex)    \
  63         (N_GETMAGIC(ex) == ZMAGIC ? 0 : sizeof(struct aout_exechdr))
  64
  65 #define N_DATOFF(ex)    N_ALIGN(ex, N_TXTOFF(ex) + (ex).tsize)
  66
  67 #endif /* !__AOUT_MACHDEP_H__*/