| /* Native-dependent code for BSD Unix running on i386's, for GDB. |
| Copyright 1988, 1989, 1991, 1992, 1994, 1995, 1996, 1998, 1999, 2000, |
| 2001 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program 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 2 of the License, or |
| (at your option) any later version. |
| |
| This program 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 this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include "defs.h" |
| |
| #include <machine/reg.h> |
| |
| /* This table must line up with REGISTER_NAME in "i386-tdep.c". */ |
| /* symbols like 'tEAX' come from <machine/reg.h> */ |
| static int tregmap[] = |
| { |
| tEAX, tECX, tEDX, tEBX, |
| tESP, tEBP, tESI, tEDI, |
| tEIP, tEFLAGS, tCS, tSS |
| }; |
| |
| #ifdef sEAX |
| static int sregmap[] = |
| { |
| sEAX, sECX, sEDX, sEBX, |
| sESP, sEBP, sESI, sEDI, |
| sEIP, sEFLAGS, sCS, sSS |
| }; |
| #else /* No sEAX */ |
| |
| /* FreeBSD has decided to collapse the s* and t* symbols. So if the s* |
| ones aren't around, use the t* ones for sregmap too. */ |
| |
| static int sregmap[] = |
| { |
| tEAX, tECX, tEDX, tEBX, |
| tESP, tEBP, tESI, tEDI, |
| tEIP, tEFLAGS, tCS, tSS |
| }; |
| #endif /* No sEAX */ |
| |
| /* blockend is the value of u.u_ar0, and points to the |
| place where ES is stored. */ |
| |
| int |
| i386_register_u_addr (int blockend, int regnum) |
| { |
| /* The following condition is a kludge to get at the proper register map |
| depending upon the state of pcb_flag. |
| The proper condition would be |
| if (u.u_pcb.pcb_flag & FM_TRAP) |
| but that would require a ptrace call here and wouldn't work |
| for corefiles. */ |
| |
| if (blockend < 0x1fcc) |
| return (blockend + 4 * tregmap[regnum]); |
| else |
| return (blockend + 4 * sregmap[regnum]); |
| } |