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f4988be7 | 1 | /* machine description file for the IA-64 architecture. |
4698665f | 2 | Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc. |
f4988be7 GM |
3 | Contributed by David Mosberger <davidm@hpl.hp.com> |
4 | ||
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
4698665f | 9 | the Free Software Foundation; either version 2, or (at your option) |
f4988be7 GM |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | #define BITS_PER_LONG 64 | |
23 | #define BITS_PER_EMACS_INT 64 | |
24 | ||
25 | /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word | |
26 | is the most significant byte. */ | |
27 | ||
28 | #undef WORDS_BIG_ENDIAN | |
29 | ||
30 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a | |
31 | group of arguments and treat it as an array of the arguments. */ | |
32 | ||
33 | #define NO_ARG_ARRAY | |
34 | ||
35 | /* Define WORD_MACHINE if addresses and such have | |
36 | to be corrected before they can be used as byte counts. */ | |
37 | ||
38 | /* #define WORD_MACHINE */ | |
39 | ||
40 | /* Now define a symbol for the cpu type, if your compiler | |
41 | does not define it automatically: | |
42 | Ones defined so far include vax, m68000, ns16000, pyramid, | |
43 | orion, tahoe, APOLLO and many others */ | |
44 | ||
45 | /* __ia64__ defined automatically */ | |
46 | ||
47 | ||
48 | /* Use type EMACS_INT rather than a union, to represent Lisp_Object */ | |
49 | /* This is desirable for most machines. */ | |
50 | ||
51 | #define NO_UNION_TYPE | |
52 | ||
53 | /* Define the type to use. */ | |
54 | #define EMACS_INT long | |
55 | #define EMACS_UINT unsigned long | |
56 | #define SPECIAL_EMACS_INT | |
57 | ||
58 | /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend | |
59 | the 24-bit bit field into an int. In other words, if bit fields | |
60 | are always unsigned. | |
61 | ||
62 | If you use NO_UNION_TYPE, this flag does not matter. */ | |
63 | ||
64 | #define EXPLICIT_SIGN_EXTEND | |
65 | ||
66 | /* Data type of load average, as read out of kmem. */ | |
67 | ||
68 | #define LOAD_AVE_TYPE long | |
69 | ||
70 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
71 | ||
72 | #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) | |
73 | ||
74 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
75 | Then the function dump-emacs will not be defined | |
76 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
77 | #if 0 | |
78 | #define CANNOT_DUMP | |
79 | #endif | |
80 | ||
81 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
82 | pure and impure space as loaded can vary, and even their | |
83 | relative order cannot be relied on. | |
84 | ||
85 | Otherwise Emacs assumes that text space precedes data space, | |
86 | numerically. */ | |
87 | ||
88 | /* #define VIRT_ADDR_VARIES */ | |
89 | ||
f4988be7 GM |
90 | /* Define the following if GNU malloc and the relocating allocator do |
91 | not work together with X. */ | |
92 | ||
93 | /* #define SYSTEM_MALLOC */ | |
94 | ||
95 | /* Define NO_REMAP if memory segmentation makes it not work well | |
96 | to change the boundary between the text section and data section | |
97 | when Emacs is dumped. If you define this, the preloaded Lisp | |
98 | code will not be sharable; but that's better than failing completely. */ | |
99 | ||
100 | /* #define NO_REMAP */ | |
101 | ||
102 | /* Some really obscure 4.2-based systems (like Sequent DYNIX) do not | |
103 | support asynchronous I/O (using SIGIO) on sockets, even though it | |
104 | works fine on tty's. If you have one of these systems, define the | |
105 | following, and then use it in config.h (or elsewhere) to decide | |
106 | when (not) to use SIGIO. | |
107 | ||
108 | You'd think this would go in an operating-system description file, | |
109 | but since it only occurs on some, but not all, BSD systems, the | |
110 | reasonable place to select for it is in the machine description | |
111 | file. */ | |
112 | ||
113 | /* #define NO_SOCK_SIGIO */ | |
114 | ||
115 | #ifdef __ELF__ | |
116 | #undef UNEXEC | |
117 | #define UNEXEC unexelf.o | |
118 | #endif | |
119 | ||
120 | #define PNTR_COMPARISON_TYPE unsigned long | |
121 | ||
be4ee72f AS |
122 | #ifndef NOT_C_CODE |
123 | ||
f4988be7 GM |
124 | #ifdef REL_ALLOC |
125 | #ifndef _MALLOC_INTERNAL | |
126 | /* "char *" because ralloc.c defines it that way. gmalloc.c thinks it | |
127 | is allowed to prototype these as "void *" so we don't prototype in | |
128 | that case. You're right: it stinks! */ | |
129 | extern char *r_alloc (), *r_re_alloc (); | |
130 | extern void r_alloc_free (); | |
131 | #endif /* not _MALLOC_INTERNAL */ | |
132 | #endif /* REL_ALLOC */ | |
133 | ||
134 | #endif /* not NOT_C_CODE */ | |
135 | ||
136 | #define DATA_SEG_BITS 0x6000000000000000 | |
137 | ||
138 | #define HAVE_TEXT_START | |
6b61353c KH |
139 | |
140 | /* arch-tag: 9b8e9fb2-2e49-4c22-b68f-11a488e77c66 | |
141 | (do not change this comment) */ |