include/nlm/common.h

   1 /* NLM (NetWare Loadable Module) support for BFD.
   2    Copyright 1993, 2001 Free Software Foundation, Inc.
   3
   4    Written by Fred Fish @ Cygnus Support
   5
   6 This file is part of BFD, the Binary File Descriptor library.
   7
   8 This program is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2 of the License, or
  11 (at your option) any later version.
  12
  13 This program is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with this program; if not, write to the Free Software
  20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  21
  22
  23 /* This file is part of NLM support for BFD, and contains the portions
  24    that are common to both the internal and external representations. */
  25
  26 /* If NLM_ARCH_SIZE is not defined, default to 32.  NLM_ARCH_SIZE is
  27    optionally defined by the application. */
  28
  29 #ifndef NLM_ARCH_SIZE
  30 #  define NLM_ARCH_SIZE                 32
  31 #endif
  32
  33 /* Due to horrible details of ANSI macro expansion, we can't use CONCAT4
  34    for NLM_NAME.  CONCAT2 is used in BFD_JUMP_TABLE macros, and some of
  35    them will expand to tokens that themselves are macros defined in terms
  36    of NLM_NAME.  If NLM_NAME were defined using CONCAT4 (which is itself
  37    defined in bfd-in.h using CONCAT2), ANSI preprocessor rules say that
  38    the CONCAT2 within NLM_NAME should not be expanded.
  39    So use another name.  */
  40 #if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
  41 #ifdef SABER
  42 #define NLM_CAT4(a,b,c,d) a##b##c##d
  43 #else
  44 /* This hack is to avoid a problem with some strict ANSI C preprocessors.
  45    The problem is, "32_" is not a valid preprocessing token, and we don't
  46    want extra underscores (e.g., "nlm_32_").  The NLM_XCAT2 macro will
  47    cause the inner CAT2 macros to be evaluated first, producing
  48    still-valid pp-tokens.  Then the final concatenation can be done.  */
  49 #define NLM_CAT2(a,b)     a##b
  50 #define NLM_XCAT2(a,b)    NLM_CAT2(a,b)
  51 #define NLM_CAT4(a,b,c,d) NLM_XCAT2(NLM_CAT2(a,b),NLM_CAT2(c,d))
  52 #endif
  53 #else
  54 #define NLM_CAT4(a,b,c,d) a/**/b/**/c/**/d
  55 #endif
  56
  57 #if NLM_ARCH_SIZE == 32
  58 #  define NLM_TARGET_LONG_SIZE          4
  59 #  define NLM_TARGET_ADDRESS_SIZE       4
  60 #  define NLM_NAME(x,y)                 NLM_CAT4(x,32,_,y)
  61 #  define NLM_HIBIT                     (((bfd_vma) 1) << 31)
  62 #endif
  63 #if NLM_ARCH_SIZE == 64
  64 #  define NLM_TARGET_LONG_SIZE          8
  65 #  define NLM_TARGET_ADDRESS_SIZE       8
  66 #  define NLM_NAME(x,y)                 NLM_CAT4(x,64,_,y)
  67 #  define NLM_HIBIT                     (((bfd_vma) 1) << 63)
  68 #endif
  69
  70 #define NlmNAME(X)              NLM_NAME(Nlm,X)
  71 #define nlmNAME(X)              NLM_NAME(nlm,X)
  72
  73 /* Give names to things that should not change. */
  74
  75 #define NLM_MAX_DESCRIPTION_LENGTH              127
  76 #define NLM_MAX_SCREEN_NAME_LENGTH              71
  77 #define NLM_MAX_THREAD_NAME_LENGTH              71
  78 #define NLM_MAX_COPYRIGHT_MESSAGE_LENGTH        255
  79 #define NLM_OTHER_DATA_LENGTH                   400             /* FIXME */
  80 #define NLM_OLD_THREAD_NAME_LENGTH              5
  81 #define NLM_SIGNATURE_SIZE                      24
  82 #define NLM_HEADER_VERSION                      4
  83 #define NLM_MODULE_NAME_SIZE                    14
  84 #define NLM_DEFAULT_STACKSIZE                   (8 * 1024)
  85 \f
  86 /* Alpha information.  This should probably be in a separate Alpha
  87    header file, but it can't go in alpha-ext.h because some of it is
  88    needed by nlmconv.c.  */
  89
  90 /* Magic number in Alpha prefix header.  */
  91 #define NLM32_ALPHA_MAGIC (0x83561840)
  92
  93 /* The r_type field in an Alpha reloc is one of the following values.  */
  94 #define ALPHA_R_IGNORE          0
  95 #define ALPHA_R_REFLONG         1
  96 #define ALPHA_R_REFQUAD         2
  97 #define ALPHA_R_GPREL32         3
  98 #define ALPHA_R_LITERAL         4
  99 #define ALPHA_R_LITUSE          5
 100 #define ALPHA_R_GPDISP          6
 101 #define ALPHA_R_BRADDR          7
 102 #define ALPHA_R_HINT            8
 103 #define ALPHA_R_SREL16          9
 104 #define ALPHA_R_SREL32         10
 105 #define ALPHA_R_SREL64         11
 106 #define ALPHA_R_OP_PUSH        12
 107 #define ALPHA_R_OP_STORE       13
 108 #define ALPHA_R_OP_PSUB        14
 109 #define ALPHA_R_OP_PRSHIFT     15
 110 #define ALPHA_R_GPVALUE        16
 111 #define ALPHA_R_NW_RELOC      250
 112
 113 /* A local reloc, other than ALPHA_R_GPDISP or ALPHA_R_IGNORE, must be
 114    against one of these symbol indices.  */
 115 #define ALPHA_RELOC_SECTION_TEXT        1
 116 #define ALPHA_RELOC_SECTION_DATA        3
 117
 118 /* An ALPHA_R_NW_RELOC has one of these values in the size field.  If
 119    it is SETGP, the r_vaddr field holds the GP value to use.  If it is
 120    LITA, the r_vaddr field holds the address of the .lita section and
 121    the r_symndx field holds the size of the .lita section.  */
 122 #define ALPHA_R_NW_RELOC_SETGP  1
 123 #define ALPHA_R_NW_RELOC_LITA   2