projects / binutils.git / blame
| Commit | Line | Data |
|---|---|---|
| dd3b648e RP |
1 | /* Macro defintions for i386. |
| 2 | Copyright (C) 1986, 1987, 1989 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of GDB. | |
| 5 | ||
| 99a7de40 | 6 | This program is free software; you can redistribute it and/or modify |
| dd3b648e | 7 | it under the terms of the GNU General Public License as published by |
| 99a7de40 JG |
8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. | |
| dd3b648e | 10 | |
| 99a7de40 | 11 | This program is distributed in the hope that it will be useful, |
| dd3b648e RP |
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 | |
| 99a7de40 JG |
17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| dd3b648e RP |
19 | |
| 20 | /* | |
| 21 | * Changes for 80386 by Pace Willisson ([email protected]) | |
| 22 | * July 1988 | |
| 23 | */ | |
| 24 | ||
| 25 | #define HOST_BYTE_ORDER LITTLE_ENDIAN | |
| 26 | ||
| 27 | /* I'm running gdb 3.4 under 386/ix 2.0.2, which is a derivative of AT&T's | |
| 28 | Sys V/386 3.2. | |
| 29 | ||
| 30 | On some machines, gdb crashes when it's starting up while calling the | |
| 31 | vendor's termio tgetent() routine. It always works when run under | |
| 32 | itself (actually, under 3.2, it's not an infinitely recursive bug.) | |
| 33 | After some poking around, it appears that depending on the environment | |
| 34 | size, or whether you're running YP, or the phase of the moon or something, | |
| 35 | the stack is not always long-aligned when main() is called, and tgetent() | |
| 36 | takes strong offense at that. On some machines this bug never appears, but | |
| 37 | on those where it does, it occurs quite reliably. */ | |
| 38 | #define ALIGN_STACK_ON_STARTUP | |
| 39 | ||
| 40 | /* define USG if you are using sys5 /usr/include's */ | |
| 41 | #define USG | |
| 42 | ||
| dd3b648e RP |
43 | #define HAVE_TERMIO |
| 44 | ||
| 45 | /* Get rid of any system-imposed stack limit if possible. */ | |
| 46 | ||
| 47 | /* #define SET_STACK_LIMIT_HUGE not in sys5 */ | |
| 48 | ||
| 49 | /* This is the amount to subtract from u.u_ar0 | |
| 50 | to get the offset in the core file of the register values. */ | |
| 51 | ||
| 52 | #define KERNEL_U_ADDR 0xe0000000 | |
| 53 | ||
| 6617b94e JG |
54 | #define REGISTER_U_ADDR(addr, blockend, regno) \ |
| 55 | (addr) = i386_register_u_addr ((blockend),(regno)); |