1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/* Copyright (C) 1990 Free Software Foundation, Inc.
This file is part of GDB.
GDB is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.
GDB is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GDB; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#if !defined (PARAM_H)
#define PARAM_H 1
/* DO NOT #include "tm.h" -- a particular tm file has been inc'd by caller */
#include "xm.h"
/* TARGET_BYTE_ORDER and HOST_BYTE_ORDER should be defined to one of these. */
#if !defined (BIG_ENDIAN)
#define BIG_ENDIAN 4321
#endif
#if !defined (LITTLE_ENDIAN)
#define LITTLE_ENDIAN 1234
#endif
/* The bit byte-order has to do just with numbering of bits in
debugging symbols and such. Conceptually, it's quite separate
from byte/word byte order. */
#if !defined (BITS_BIG_ENDIAN)
#if TARGET_BYTE_ORDER == BIG_ENDIAN
#define BITS_BIG_ENDIAN 1
#endif /* Big endian. */
#if TARGET_BYTE_ORDER == LITTLE_ENDIAN
#define BITS_BIG_ENDIAN 0
#endif /* Little endian. */
#endif /* BITS_BIG_ENDIAN not defined. */
/* Swap LEN bytes at BUFFER between target and host byte-order. */
#if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
#define SWAP_TARGET_AND_HOST(buffer,len)
#else /* Target and host byte order differ. */
#define SWAP_TARGET_AND_HOST(buffer,len) \
{ \
char tmp; \
char *p = (char *)(buffer); \
char *q = ((char *)(buffer)) + len - 1; \
for (; p < q; p++, q--) \
{ \
tmp = *q; \
*q = *p; \
*p = tmp; \
} \
}
#endif /* Target and host byte order differ. */
/* On some machines there are bits in addresses which are not really
part of the address, but are used by the kernel, the hardware, etc.
for special purposes. ADDR_BITS_REMOVE takes out any such bits
so we get a "real" address such as one would find in a symbol
table. ADDR_BITS_SET sets those bits the way the system wants
them. */
#if !defined (ADDR_BITS_REMOVE)
#define ADDR_BITS_REMOVE(addr) (addr)
#define ADDR_BITS_SET(addr) (addr)
#endif /* No ADDR_BITS_REMOVE. */
#if !defined (SYS_SIGLIST_MISSING)
#define SYS_SIGLIST_MISSING defined (USG)
#endif /* No SYS_SIGLIST_MISSING */
#endif /* param.h not already included. */
|
