Subversion Repositories Kolibri OS

Rev

Rev 5191 | Blame | Compare with Previous | Last modification | View Log | RSS feed

  1. /* a.out specifics for Sequent Symmetry running Dynix 3.x
  2.  
  3.    Copyright (C) 2001-2015 Free Software Foundation, Inc.
  4.  
  5.    This program is free software; you can redistribute it and/or modify
  6.    it under the terms of the GNU General Public License as published by
  7.    the Free Software Foundation; either version 3 of the License, or
  8.    (at your option) any later version.
  9.  
  10.    This program is distributed in the hope that it will be useful,
  11.    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13.    GNU General Public License for more details.
  14.  
  15.    You should have received a copy of the GNU General Public License
  16.    along with this program; if not, write to the Free Software
  17.    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  18.    MA 02110-1301, USA.  */
  19.  
  20. #ifndef A_OUT_DYNIX3_H
  21. #define A_OUT_DYNIX3_H
  22.  
  23. #define external_exec dynix_external_exec
  24.  
  25. /* struct exec for Dynix 3
  26.  
  27.    a_gdtbl and a_bootstrap are only for standalone binaries.
  28.    Shared data fields are not supported by the kernel as of Dynix 3.1,
  29.    but are supported by Dynix compiler programs.  */
  30. struct dynix_external_exec
  31.   {
  32.     unsigned char e_info[4];
  33.     unsigned char e_text[4];
  34.     unsigned char e_data[4];
  35.     unsigned char e_bss[4];
  36.     unsigned char e_syms[4];
  37.     unsigned char e_entry[4];
  38.     unsigned char e_trsize[4];
  39.     unsigned char e_drsize[4];
  40.     unsigned char e_g_code[8];
  41.     unsigned char e_g_data[8];
  42.     unsigned char e_g_desc[8];
  43.     unsigned char e_shdata[4];
  44.     unsigned char e_shbss[4];
  45.     unsigned char e_shdrsize[4];
  46.     unsigned char e_bootstrap[44];
  47.     unsigned char e_reserved[12];
  48.     unsigned char e_version[4];
  49.   };
  50.  
  51. #define EXEC_BYTES_SIZE (128)
  52.  
  53. /* All executables under Dynix are demand paged with read-only text,
  54.    Thus no NMAGIC.
  55.  
  56.    ZMAGIC has a page of 0s at virtual 0,
  57.    XMAGIC has an invalid page at virtual 0.  */
  58. #define OMAGIC  0x12eb          /* .o */
  59. #define ZMAGIC  0x22eb          /* zero @ 0, demand load */
  60. #define XMAGIC  0x32eb          /* invalid @ 0, demand load */
  61. #define SMAGIC  0x42eb          /* standalone, not supported here */
  62.  
  63. #define N_BADMAG(x) ((OMAGIC != N_MAGIC(x)) && \
  64.                      (ZMAGIC != N_MAGIC(x)) && \
  65.                      (XMAGIC != N_MAGIC(x)) && \
  66.                      (SMAGIC != N_MAGIC(x)))
  67.  
  68. #define N_ADDRADJ(x) ((ZMAGIC == N_MAGIC(x) || XMAGIC == N_MAGIC(x)) ? 0x1000 : 0)
  69.  
  70. #define N_TXTOFF(x) (EXEC_BYTES_SIZE)
  71. #define N_DATOFF(x) (N_TXTOFF(x) + N_TXTSIZE(x))
  72. #define N_SHDATOFF(x) (N_DATOFF(x) + (x).a_data)
  73. #define N_TRELOFF(x) (N_SHDATOFF(x) + (x).a_shdata)
  74. #define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize)
  75. #define N_SHDRELOFF(x) (N_DRELOFF(x) + (x).a_drsize)
  76. #define N_SYMOFF(x) (N_SHDRELOFF(x) + (x).a_shdrsize)
  77. #define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms)
  78.  
  79. #define N_TXTADDR(x) \
  80.         (((OMAGIC == N_MAGIC(x)) || (SMAGIC == N_MAGIC(x))) ? 0 \
  81.          : TEXT_START_ADDR + EXEC_BYTES_SIZE)
  82.  
  83. #define N_TXTSIZE(x) \
  84.         (((OMAGIC == N_MAGIC(x)) || (SMAGIC == N_MAGIC(x))) ? ((x).a_text) \
  85.          : ((x).a_text - N_ADDRADJ(x) - EXEC_BYTES_SIZE))
  86.  
  87. #endif /* A_OUT_DYNIX3_H */
  88.