code.delx.au - gnu-emacs/blob - src/m/ia64.h

   1 /* machine description file for the IA-64 architecture.
   2    Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
   3                  2008  Free Software Foundation, Inc.
   4      Contributed by David Mosberger <davidm@hpl.hp.com>
   5
   6 This file is part of GNU Emacs.
   7
   8 GNU Emacs 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 3 of the License, or
  11 (at your option) any later version.
  12
  13 GNU Emacs 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21 #define BITS_PER_LONG           64
  22 #define BITS_PER_EMACS_INT      64
  23
  24 /* Define WORDS_BIG_ENDIAN if lowest-numbered byte in a word
  25    is the most significant byte.  */
  26
  27 #undef WORDS_BIG_ENDIAN
  28
  29 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  30    group of arguments and treat it as an array of the arguments.  */
  31
  32 #define NO_ARG_ARRAY
  33
  34 /* Now define a symbol for the cpu type, if your compiler
  35    does not define it automatically:
  36    Ones defined so far include vax, m68000, ns16000, pyramid,
  37    orion, tahoe, APOLLO and many others */
  38
  39 /* __ia64__ defined automatically */
  40
  41
  42 /* Use type EMACS_INT rather than a union, to represent Lisp_Object */
  43 /* This is desirable for most machines.  */
  44
  45 #define NO_UNION_TYPE
  46
  47 /* Define the type to use.  */
  48 #define EMACS_INT               long
  49 #define EMACS_UINT              unsigned long
  50 #define SPECIAL_EMACS_INT
  51
  52 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
  53    the 24-bit bit field into an int.  In other words, if bit fields
  54    are always unsigned.
  55
  56    If you use NO_UNION_TYPE, this flag does not matter.  */
  57
  58 #define EXPLICIT_SIGN_EXTEND
  59
  60 /* Data type of load average, as read out of kmem.  */
  61
  62 #define LOAD_AVE_TYPE           long
  63
  64 /* Convert that into an integer that is 100 for a load average of 1.0  */
  65
  66 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
  67
  68 /* Define CANNOT_DUMP on machines where unexec does not work.
  69    Then the function dump-emacs will not be defined
  70    and temacs will do (load "loadup") automatically unless told otherwise.  */
  71 #if 0
  72 #define CANNOT_DUMP
  73 #endif
  74
  75 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  76    pure and impure space as loaded can vary, and even their
  77    relative order cannot be relied on.
  78
  79    Otherwise Emacs assumes that text space precedes data space,
  80    numerically.  */
  81
  82 /* #define VIRT_ADDR_VARIES */
  83
  84 /* Define the following if GNU malloc and the relocating allocator do
  85    not work together with X.  */
  86
  87 /* #define SYSTEM_MALLOC */
  88
  89 /* Define NO_REMAP if memory segmentation makes it not work well
  90    to change the boundary between the text section and data section
  91    when Emacs is dumped.  If you define this, the preloaded Lisp
  92    code will not be sharable; but that's better than failing completely.  */
  93
  94 /* #define NO_REMAP */
  95
  96 /* Some really obscure 4.2-based systems (like Sequent DYNIX) do not
  97    support asynchronous I/O (using SIGIO) on sockets, even though it
  98    works fine on tty's.  If you have one of these systems, define the
  99    following, and then use it in config.h (or elsewhere) to decide
 100    when (not) to use SIGIO.
 101
 102    You'd think this would go in an operating-system description file,
 103    but since it only occurs on some, but not all, BSD systems, the
 104    reasonable place to select for it is in the machine description
 105    file.  */
 106
 107 /* #define NO_SOCK_SIGIO */
 108
 109 #ifdef __ELF__
 110 #undef UNEXEC
 111 #define UNEXEC unexelf.o
 112 #endif
 113
 114 #define PNTR_COMPARISON_TYPE unsigned long
 115
 116 #ifndef NOT_C_CODE
 117
 118 #ifdef REL_ALLOC
 119 #ifndef _MALLOC_INTERNAL
 120 /* "char *" because ralloc.c defines it that way.  gmalloc.c thinks it
 121    is allowed to prototype these as "void *" so we don't prototype in
 122    that case.  You're right: it stinks!  */
 123 extern char *r_alloc (), *r_re_alloc ();
 124 extern void r_alloc_free ();
 125 #endif /* not _MALLOC_INTERNAL */
 126 #endif /* REL_ALLOC */
 127
 128 #endif /* not NOT_C_CODE */
 129
 130 #define HAVE_TEXT_START
 131
 132 /* arch-tag: 9b8e9fb2-2e49-4c22-b68f-11a488e77c66
 133    (do not change this comment) */