projects / binutils.git / blame
| Commit | Line | Data |
|---|---|---|
| dd3b648e | 1 | /* Macro defintions for i386. |
| 75af490b JG |
2 | Copyright 1986, 1987, 1989, 1992 Free Software Foundation, Inc. |
| 3 | Changes for 80386 by Pace Willisson ([email protected]), July 1988. | |
| dd3b648e RP |
4 | |
| 5 | This file is part of GDB. | |
| 6 | ||
| 99a7de40 | 7 | This program is free software; you can redistribute it and/or modify |
| dd3b648e | 8 | it under the terms of the GNU General Public License as published by |
| 99a7de40 JG |
9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. | |
| dd3b648e | 11 | |
| 99a7de40 | 12 | This program is distributed in the hope that it will be useful, |
| dd3b648e RP |
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 | |
| 99a7de40 JG |
18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| dd3b648e | 20 | |
| dd3b648e RP |
21 | #define HOST_BYTE_ORDER LITTLE_ENDIAN |
| 22 | ||
| 23 | /* I'm running gdb 3.4 under 386/ix 2.0.2, which is a derivative of AT&T's | |
| 24 | Sys V/386 3.2. | |
| 25 | ||
| 26 | On some machines, gdb crashes when it's starting up while calling the | |
| 27 | vendor's termio tgetent() routine. It always works when run under | |
| 28 | itself (actually, under 3.2, it's not an infinitely recursive bug.) | |
| 29 | After some poking around, it appears that depending on the environment | |
| 30 | size, or whether you're running YP, or the phase of the moon or something, | |
| 31 | the stack is not always long-aligned when main() is called, and tgetent() | |
| 32 | takes strong offense at that. On some machines this bug never appears, but | |
| 33 | on those where it does, it occurs quite reliably. */ | |
| 34 | #define ALIGN_STACK_ON_STARTUP | |
| 35 | ||
| 36 | /* define USG if you are using sys5 /usr/include's */ | |
| 37 | #define USG | |
| 38 | ||
| dd3b648e RP |
39 | #define HAVE_TERMIO |
| 40 | ||
| dd3b648e RP |
41 | /* This is the amount to subtract from u.u_ar0 |
| 42 | to get the offset in the core file of the register values. */ | |
| 43 | ||
| 44 | #define KERNEL_U_ADDR 0xe0000000 | |
| 45 | ||
| 6617b94e JG |
46 | #define REGISTER_U_ADDR(addr, blockend, regno) \ |
| 47 | (addr) = i386_register_u_addr ((blockend),(regno)); | |
| 75af490b JG |
48 | |
| 49 | extern int | |
| 50 | i386_register_u_addr PARAMS ((int, int)); |