projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5076de82 FF |
1 | /* Host support for i386. |
| 2 | Copyright 1986, 1987, 1989, 1992 Free Software Foundation, Inc. | |
| 3 | Changes for 80386 by Pace Willisson (pace@prep.ai.mit.edu), July 1988. | |
| 4 | ||
| 5 | This file is part of GDB. | |
| 6 | ||
| 7 | This program is free software; you can redistribute it and/or modify | |
| 8 | it under the terms of the GNU General Public License as published by | |
| 9 | the Free Software Foundation; either version 2 of the License, or | |
| 10 | (at your option) any later version. | |
| 11 | ||
| 12 | This program is distributed in the hope that it will be useful, | |
| 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 | |
| 18 | along with this program; if not, write to the Free Software | |
| 6c9638b4 | 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 5076de82 FF |
20 | |
| 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 | ||
| 39 | #define HAVE_TERMIO | |
| 40 | ||
| 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 |