gdb/m68knbsd-nat.c

   1 /* Native-dependent code for Motorola m68k's running NetBSD, for GDB.
   2    Copyright 1988, 1989, 1991, 1992, 1994, 1996 Free Software Foundation, Inc.
   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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 #include <sys/types.h>
  21 #include <sys/ptrace.h>
  22 #include <machine/reg.h>
  23 #include <machine/frame.h>
  24
  25 #include "defs.h"
  26 #include "inferior.h"
  27
  28 void
  29 fetch_inferior_registers(regno)
  30      int regno;
  31 {
  32   struct reg inferior_registers;
  33   struct fpreg inferior_fp_registers;
  34
  35   ptrace (PT_GETREGS, inferior_pid,
  36           (PTRACE_ARG3_TYPE) &inferior_registers, 0);
  37   memcpy (&registers[REGISTER_BYTE (0)], &inferior_registers,
  38           sizeof(inferior_registers));
  39
  40   ptrace (PT_GETFPREGS, inferior_pid,
  41           (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
  42   memcpy (&registers[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
  43           sizeof(inferior_fp_registers));
  44
  45   registers_fetched ();
  46 }
  47
  48 void
  49 store_inferior_registers(regno)
  50      int regno;
  51 {
  52   struct reg inferior_registers;
  53   struct fpreg inferior_fp_registers;
  54
  55   memcpy (&inferior_registers, &registers[REGISTER_BYTE (0)],
  56           sizeof(inferior_registers));
  57   ptrace (PT_SETREGS, inferior_pid,
  58           (PTRACE_ARG3_TYPE) &inferior_registers, 0);
  59
  60   memcpy (&inferior_fp_registers, &registers[REGISTER_BYTE (FP0_REGNUM)],
  61           sizeof(inferior_fp_registers));
  62   ptrace (PT_SETFPREGS, inferior_pid,
  63           (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
  64 }
  65
  66 struct md_core {
  67   struct reg intreg;
  68   struct fpreg freg;
  69 };
  70
  71 void
  72 fetch_core_registers (core_reg_sect, core_reg_size, which, ignore)
  73      char *core_reg_sect;
  74      unsigned core_reg_size;
  75      int which;
  76      CORE_ADDR ignore;
  77 {
  78   struct md_core *core_reg = (struct md_core *)core_reg_sect;
  79
  80   /* Integer registers */
  81   memcpy(&registers[REGISTER_BYTE (0)],
  82          &core_reg->intreg, sizeof(struct reg));
  83   /* Floating point registers */
  84   memcpy(&registers[REGISTER_BYTE (FP0_REGNUM)],
  85          &core_reg->freg, sizeof(struct fpreg));
  86 }