projects / binutils.git / blame
| Commit | Line | Data |
|---|---|---|
| ede9d8a7 JG |
1 | /* Native-dependent code for BSD Unix running on i386's, for GDB. |
| 2 | Copyright 1988, 1989, 1991, 1992 Free Software Foundation, Inc. | |
| 6d685882 JG |
3 | |
| 4 | This file is part of GDB. | |
| 5 | ||
| 6 | This program is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 2 of the License, or | |
| 9 | (at your option) any later version. | |
| 10 | ||
| 11 | This program is distributed in the hope that it will be useful, | |
| 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 | |
| 17 | along with this program; if not, write to the Free Software | |
| 18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 19 | ||
| 20 | #include "defs.h" | |
| 6d685882 JG |
21 | #include <machine/reg.h> |
| 22 | ||
| 6d685882 JG |
23 | /* this table must line up with REGISTER_NAMES in tm-i386.h */ |
| 24 | /* symbols like 'tEAX' come from <machine/reg.h> */ | |
| 25 | static int tregmap[] = | |
| 26 | { | |
| 27 | tEAX, tECX, tEDX, tEBX, | |
| 28 | tESP, tEBP, tESI, tEDI, | |
| 29 | tEIP, tEFLAGS, tCS, tSS | |
| 30 | }; | |
| 11ebf939 JK |
31 | |
| 32 | #ifdef sEAX | |
| 6d685882 JG |
33 | static int sregmap[] = |
| 34 | { | |
| 35 | sEAX, sECX, sEDX, sEBX, | |
| 36 | sESP, sEBP, sESI, sEDI, | |
| 37 | sEIP, sEFLAGS, sCS, sSS | |
| 38 | }; | |
| 11ebf939 JK |
39 | #else /* No sEAX */ |
| 40 | ||
| 41 | /* NetBSD has decided to collapse the s* and t* symbols. So if the s* | |
| 42 | ones aren't around, use the t* ones for sregmap too. */ | |
| 43 | ||
| 44 | static int sregmap[] = | |
| 45 | { | |
| 46 | tEAX, tECX, tEDX, tEBX, | |
| 47 | tESP, tEBP, tESI, tEDI, | |
| 48 | tEIP, tEFLAGS, tCS, tSS | |
| 49 | }; | |
| 50 | #endif /* No sEAX */ | |
| 6d685882 JG |
51 | |
| 52 | /* blockend is the value of u.u_ar0, and points to the | |
| 53 | place where ES is stored. */ | |
| 54 | ||
| 55 | int | |
| 56 | i386_register_u_addr (blockend, regnum) | |
| 57 | int blockend; | |
| 58 | int regnum; | |
| 59 | { | |
| 60 | /* The following condition is a kludge to get at the proper register map | |
| 61 | depending upon the state of pcb_flag. | |
| 62 | The proper condition would be | |
| 63 | if (u.u_pcb.pcb_flag & FM_TRAP) | |
| 64 | but that would require a ptrace call here and wouldn't work | |
| 65 | for corefiles. */ | |
| 66 | ||
| 67 | if (blockend < 0x1fcc) | |
| 68 | return (blockend + 4 * tregmap[regnum]); | |
| 69 | else | |
| 70 | return (blockend + 4 * sregmap[regnum]); | |
| 71 | } |