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 /* Define the type to use.  */
  43 #define EMACS_INT               long
  44 #define EMACS_UINT              unsigned long
  45
  46 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
  47    the 24-bit bit field into an int.  In other words, if bit fields
  48    are always unsigned.
  49
  50    This flag only matters if you use USE_LISP_UNION_TYPE.  */
  51
  52 #define EXPLICIT_SIGN_EXTEND
  53
  54 /* Data type of load average, as read out of kmem.  */
  55
  56 #define LOAD_AVE_TYPE           long
  57
  58 /* Convert that into an integer that is 100 for a load average of 1.0  */
  59
  60 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
  61
  62 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  63    pure and impure space as loaded can vary, and even their
  64    relative order cannot be relied on.
  65
  66    Otherwise Emacs assumes that text space precedes data space,
  67    numerically.  */
  68
  69 /* #define VIRT_ADDR_VARIES */
  70
  71 /* Define the following if GNU malloc and the relocating allocator do
  72    not work together with X.  */
  73
  74 /* #define SYSTEM_MALLOC */
  75
  76 /* Define NO_REMAP if memory segmentation makes it not work well
  77    to change the boundary between the text section and data section
  78    when Emacs is dumped.  If you define this, the preloaded Lisp
  79    code will not be sharable; but that's better than failing completely.  */
  80
  81 /* #define NO_REMAP */
  82
  83 /* Some really obscure 4.2-based systems (like Sequent DYNIX) do not
  84    support asynchronous I/O (using SIGIO) on sockets, even though it
  85    works fine on tty's.  If you have one of these systems, define the
  86    following, and then use it in config.h (or elsewhere) to decide
  87    when (not) to use SIGIO.
  88
  89    You'd think this would go in an operating-system description file,
  90    but since it only occurs on some, but not all, BSD systems, the
  91    reasonable place to select for it is in the machine description
  92    file.  */
  93
  94 /* #define NO_SOCK_SIGIO */
  95
  96 #ifdef __ELF__
  97 #undef UNEXEC
  98 #define UNEXEC unexelf.o
  99 #endif
 100
 101 #define PNTR_COMPARISON_TYPE unsigned long
 102
 103 #ifndef NOT_C_CODE
 104
 105 #ifdef REL_ALLOC
 106 #ifndef _MALLOC_INTERNAL
 107 /* "char *" because ralloc.c defines it that way.  gmalloc.c thinks it
 108    is allowed to prototype these as "void *" so we don't prototype in
 109    that case.  You're right: it stinks!  */
 110 extern char *r_alloc (), *r_re_alloc ();
 111 extern void r_alloc_free ();
 112 #endif /* not _MALLOC_INTERNAL */
 113 #endif /* REL_ALLOC */
 114
 115 #endif /* not NOT_C_CODE */
 116
 117 #define HAVE_TEXT_START
 118
 119 /* arch-tag: 9b8e9fb2-2e49-4c22-b68f-11a488e77c66
 120    (do not change this comment) */