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3fa4ac47 AS |
1 | /* machine description file for AMD x86-64. |
2 | Copyright (C) 2002 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | ||
177c0ea7 | 22 | /* The following line tells the configuration script what sort of |
3fa4ac47 AS |
23 | operating system this machine is likely to run. |
24 | USUAL-OPSYS="linux" */ | |
25 | ||
26 | #define BITS_PER_LONG 64 | |
27 | #define BITS_PER_EMACS_INT 64 | |
28 | ||
29 | /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word | |
30 | is the most significant byte. */ | |
31 | ||
32 | #undef WORDS_BIG_ENDIAN | |
33 | ||
34 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a | |
35 | * group of arguments and treat it as an array of the arguments. */ | |
36 | ||
37 | #define NO_ARG_ARRAY | |
38 | ||
39 | /* Define WORD_MACHINE if addresses and such have | |
40 | * to be corrected before they can be used as byte counts. */ | |
41 | ||
42 | /* #define WORD_MACHINE */ | |
43 | ||
44 | /* Now define a symbol for the cpu type, if your compiler | |
45 | does not define it automatically: | |
46 | Ones defined so far include vax, m68000, ns16000, pyramid, | |
47 | orion, tahoe, APOLLO and many others */ | |
48 | /* __x86_64 defined automatically. */ | |
49 | ||
50 | /* Use type int rather than a union, to represent Lisp_Object */ | |
51 | /* This is desirable for most machines. */ | |
52 | ||
53 | #define NO_UNION_TYPE | |
54 | ||
55 | /* Define the type to use. */ | |
56 | #define EMACS_INT long | |
57 | #define EMACS_UINT unsigned long | |
58 | #define SPECIAL_EMACS_INT | |
59 | ||
60 | /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend | |
61 | the 24-bit bit field into an int. In other words, if bit fields | |
62 | are always unsigned. | |
63 | ||
64 | If you use NO_UNION_TYPE, this flag does not matter. */ | |
65 | ||
66 | #define EXPLICIT_SIGN_EXTEND | |
67 | ||
68 | /* Data type of load average, as read out of kmem. */ | |
69 | ||
70 | #define LOAD_AVE_TYPE long | |
71 | ||
72 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
73 | ||
74 | #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) | |
75 | ||
76 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
77 | Then the function dump-emacs will not be defined | |
78 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
79 | ||
80 | /* #define CANNOT_DUMP */ | |
81 | ||
82 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
83 | pure and impure space as loaded can vary, and even their | |
84 | relative order cannot be relied on. | |
85 | ||
86 | Otherwise Emacs assumes that text space precedes data space, | |
87 | numerically. */ | |
88 | ||
89 | /* #define VIRT_ADDR_VARIES */ | |
90 | ||
91 | /* Define NO_REMAP if memory segmentation makes it not work well | |
92 | to change the boundary between the text section and data section | |
93 | when Emacs is dumped. If you define this, the preloaded Lisp | |
94 | code will not be sharable; but that's better than failing completely. */ | |
95 | ||
96 | /* #define NO_REMAP */ | |
97 | ||
98 | #define PNTR_COMPARISON_TYPE unsigned long | |
99 | ||
100 | /* On the 64 bit architecture, we can use 60 bits for addresses */ | |
101 | ||
102 | #define VALBITS 60 | |
103 | ||
104 | /* This definition of MARKBIT is necessary because of the comparison of | |
105 | ARRAY_MARK_FLAG and MARKBIT in an #if in lisp.h, which cpp doesn't like. */ | |
106 | ||
107 | #define MARKBIT 0x8000000000000000L | |
108 | ||
109 | /* Define XINT and XUINT so that they can take arguments of type int */ | |
110 | #define XINT(a) (((long) (a) << (BITS_PER_LONG - VALBITS)) >> (BITS_PER_LONG - VALBITS)) | |
111 | #define XUINT(a) ((long) (a) & VALMASK) | |
112 | ||
113 | /* Define XPNTR to avoid or'ing with DATA_SEG_BITS */ | |
114 | ||
115 | #define XPNTR(a) XUINT (a) | |
116 | ||
117 | #undef START_FILES | |
118 | #define START_FILES pre-crt0.o /usr/lib64/crt1.o /usr/lib64/crti.o | |
119 | ||
120 | #undef LIB_STANDARD | |
121 | #define LIB_STANDARD -lgcc -lc -lgcc /usr/lib64/crtn.o |