58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/* Native-dependent code for BSD Unix running on i386's, for GDB.
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Copyright 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "defs.h"
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#include <machine/reg.h>
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/* this table must line up with REGISTER_NAMES in tm-i386.h */
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/* symbols like 'tEAX' come from <machine/reg.h> */
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static int tregmap[] =
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{
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tEAX, tECX, tEDX, tEBX,
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tESP, tEBP, tESI, tEDI,
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tEIP, tEFLAGS, tCS, tSS
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};
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static int sregmap[] =
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{
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sEAX, sECX, sEDX, sEBX,
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sESP, sEBP, sESI, sEDI,
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sEIP, sEFLAGS, sCS, sSS
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};
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/* blockend is the value of u.u_ar0, and points to the
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place where ES is stored. */
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int
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i386_register_u_addr (blockend, regnum)
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int blockend;
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int regnum;
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{
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/* The following condition is a kludge to get at the proper register map
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depending upon the state of pcb_flag.
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The proper condition would be
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if (u.u_pcb.pcb_flag & FM_TRAP)
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but that would require a ptrace call here and wouldn't work
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for corefiles. */
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if (blockend < 0x1fcc)
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return (blockend + 4 * tregmap[regnum]);
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else
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return (blockend + 4 * sregmap[regnum]);
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}
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