projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| dd3b648e RP |
1 | /* Copyright (C) 1990 Free Software Foundation, Inc. |
| 2 | ||
| 3 | This file is part of GDB. | |
| 4 | ||
| 5 | GDB is free software; you can redistribute it and/or modify | |
| 6 | it under the terms of the GNU General Public License as published by | |
| 7 | the Free Software Foundation; either version 1, or (at your option) | |
| 8 | any later version. | |
| 9 | ||
| 10 | GDB is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU General Public License | |
| 16 | along with GDB; see the file COPYING. If not, write to | |
| 17 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 18 | ||
| 19 | #if !defined (PARAM_H) | |
| 20 | #define PARAM_H 1 | |
| 21 | ||
| 22 | /* DO NOT #include "tm.h" -- a particular tm file has been inc'd by caller */ | |
| 23 | ||
| 24 | #include "xm.h" | |
| 25 | ||
| 26 | /* TARGET_BYTE_ORDER and HOST_BYTE_ORDER should be defined to one of these. */ | |
| 27 | #if !defined (BIG_ENDIAN) | |
| 28 | #define BIG_ENDIAN 4321 | |
| 29 | #endif | |
| 30 | ||
| 31 | #if !defined (LITTLE_ENDIAN) | |
| 32 | #define LITTLE_ENDIAN 1234 | |
| 33 | #endif | |
| 34 | ||
| 35 | /* The bit byte-order has to do just with numbering of bits in | |
| 36 | debugging symbols and such. Conceptually, it's quite separate | |
| 37 | from byte/word byte order. */ | |
| 38 | ||
| 39 | #if TARGET_BYTE_ORDER == BIG_ENDIAN | |
| 40 | #define BITS_BIG_ENDIAN 1 | |
| 41 | #endif | |
| 42 | ||
| 43 | #if TARGET_BYTE_ORDER == LITTLE_ENDIAN | |
| 44 | /*#define BITS_BIG_ENDIAN */ | |
| 45 | #endif | |
| 46 | ||
| 47 | /* Swap LEN bytes at BUFFER between target and host byte-order. */ | |
| 48 | #if TARGET_BYTE_ORDER == HOST_BYTE_ORDER | |
| 49 | #define SWAP_TARGET_AND_HOST(buffer,len) | |
| 50 | #else /* Target and host byte order differ. */ | |
| 51 | #define SWAP_TARGET_AND_HOST(buffer,len) \ | |
| 52 | { \ | |
| 53 | char tmp; \ | |
| 54 | char *p = (char *)(buffer); \ | |
| 55 | char *q = ((char *)(buffer)) + len - 1; \ | |
| 56 | for (; p < q; p++, q--) \ | |
| 57 | { \ | |
| 58 | tmp = *q; \ | |
| 59 | *q = *p; \ | |
| 60 | *p = tmp; \ | |
| 61 | } \ | |
| 62 | } | |
| 63 | #endif /* Target and host byte order differ. */ | |
| 64 | ||
| 65 | /* On some machines there are bits in addresses which are not really | |
| 66 | part of the address, but are used by the kernel, the hardware, etc. | |
| 67 | for special purposes. ADDR_BITS_REMOVE takes out any such bits | |
| 68 | so we get a "real" address such as one would find in a symbol | |
| 69 | table. ADDR_BITS_SET sets those bits the way the system wants | |
| 70 | them. */ | |
| 71 | #if !defined (ADDR_BITS_REMOVE) | |
| 72 | #define ADDR_BITS_REMOVE(addr) (addr) | |
| 73 | #define ADDR_BITS_SET(addr) (addr) | |
| 74 | #endif /* No ADDR_BITS_REMOVE. */ | |
| 75 | ||
| 76 | #endif /* param.h not already included. */ |