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markom |
/* Host-dependent code for Apollo-68ks for GDB, the GNU debugger.
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Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1999, 2000, 2001
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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., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "inferior.h"
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#include "regcache.h"
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#ifndef _ISP__M68K
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#define _ISP__M68K 1
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#endif
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#include <ptrace.h>
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extern int errno;
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void
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fetch_inferior_registers (int ignored)
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{
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struct ptrace_$data_regs_m68k inferior_registers;
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struct ptrace_$floating_regs_m68k inferior_fp_registers;
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struct ptrace_$control_regs_m68k inferior_control_registers;
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ptrace_$init_control (&inferior_control_registers);
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inferior_fp_registers.size = sizeof (inferior_fp_registers);
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registers_fetched ();
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ptrace (PTRACE_GETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) & inferior_registers,
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ptrace_$data_set,
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(PTRACE_ARG3_TYPE) & inferior_registers,
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ptrace_$data_set);
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ptrace (PTRACE_GETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) & inferior_fp_registers,
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ptrace_$floating_set_m68k,
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(PTRACE_ARG3_TYPE) & inferior_fp_registers,
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ptrace_$floating_set_m68k);
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ptrace (PTRACE_GETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) & inferior_control_registers,
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ptrace_$control_set_m68k,
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(PTRACE_ARG3_TYPE) & inferior_control_registers,
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ptrace_$control_set_m68k);
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bcopy (&inferior_registers, registers, 16 * 4);
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bcopy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)],
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sizeof inferior_fp_registers.regs);
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*(int *) ®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_control_registers.sr;
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*(int *) ®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_control_registers.pc;
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}
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/* Store our register values back into the inferior.
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If REGNO is -1, do this for all registers.
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Otherwise, REGNO specifies which register (so we can save time). */
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void
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store_inferior_registers (int regno)
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{
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struct ptrace_$data_regs_m68k inferior_registers;
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struct ptrace_$floating_regs_m68k inferior_fp_registers;
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struct ptrace_$control_regs_m68k inferior_control_registers;
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ptrace_$init_control (&inferior_control_registers);
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inferior_fp_registers.size = sizeof (inferior_fp_registers);
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ptrace (PTRACE_GETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) & inferior_fp_registers,
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ptrace_$floating_set_m68k,
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(PTRACE_ARG3_TYPE) & inferior_fp_registers,
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ptrace_$floating_set_m68k);
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ptrace (PTRACE_GETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) & inferior_control_registers,
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ptrace_$control_set_m68k,
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(PTRACE_ARG3_TYPE) & inferior_control_registers,
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ptrace_$control_set_m68k);
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bcopy (registers, &inferior_registers, sizeof (inferior_registers));
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bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], inferior_fp_registers.regs,
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sizeof inferior_fp_registers.regs);
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inferior_control_registers.sr = *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)];
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inferior_control_registers.pc = *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)];
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ptrace (PTRACE_SETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) & inferior_registers,
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ptrace_$data_set_m68k,
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(PTRACE_ARG3_TYPE) & inferior_registers,
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ptrace_$data_set_m68k);
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ptrace (PTRACE_SETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) & inferior_fp_registers,
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ptrace_$floating_set_m68k,
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(PTRACE_ARG3_TYPE) & inferior_fp_registers,
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ptrace_$floating_set_m68k);
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ptrace (PTRACE_SETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) & inferior_control_registers,
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ptrace_$control_set_m68k,
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(PTRACE_ARG3_TYPE) & inferior_control_registers,
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ptrace_$control_set_m68k);
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}
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