include/linux/flat.h

   1 /*
   2  * Copyright (C) 2002-2003  David McCullough <davidm@snapgear.com>
   3  * Copyright (C) 1998       Kenneth Albanowski <kjahds@kjahds.com>
   4  *                          The Silver Hammer Group, Ltd.
   5  *
   6  * This file provides the definitions and structures needed to
   7  * support uClinux flat-format executables.
   8  */
   9 #ifndef _LINUX_FLAT_H
  10 #define _LINUX_FLAT_H
  11
  12 #include <asm/flat.h>
  13 #include <uapi/linux/flat.h>
  14
  15 /*
  16  * While it would be nice to keep this header clean,  users of older
  17  * tools still need this support in the kernel.  So this section is
  18  * purely for compatibility with old tool chains.
  19  *
  20  * DO NOT make changes or enhancements to the old format please,  just work
  21  *        with the format above,  except to fix bugs with old format support.
  22  */
  23
  24 #include <asm/byteorder.h>
  25
  26 #define OLD_FLAT_VERSION                        0x00000002L
  27 #define OLD_FLAT_RELOC_TYPE_TEXT        0
  28 #define OLD_FLAT_RELOC_TYPE_DATA        1
  29 #define OLD_FLAT_RELOC_TYPE_BSS         2
  30
  31 typedef union {
  32         unsigned long   value;
  33         struct {
  34 # if defined(mc68000) && !defined(CONFIG_COLDFIRE)
  35                 signed long offset : 30;
  36                 unsigned long type : 2;
  37 #       define OLD_FLAT_FLAG_RAM    0x1 /* load program entirely into RAM */
  38 # elif defined(__BIG_ENDIAN_BITFIELD)
  39                 unsigned long type : 2;
  40                 signed long offset : 30;
  41 #       define OLD_FLAT_FLAG_RAM    0x1 /* load program entirely into RAM */
  42 # elif defined(__LITTLE_ENDIAN_BITFIELD)
  43                 signed long offset : 30;
  44                 unsigned long type : 2;
  45 #       define OLD_FLAT_FLAG_RAM    0x1 /* load program entirely into RAM */
  46 # else
  47 #       error "Unknown bitfield order for flat files."
  48 # endif
  49         } reloc;
  50 } flat_v2_reloc_t;
  51
  52 #endif /* _LINUX_FLAT_H */