gdb/armnbsd-nat.c

   1 /* Native-dependent code for BSD Unix running on ARM's, for GDB.
   2    Copyright 1988, 1989, 1991, 1992, 1994, 1996, 1999, 2002
   3    Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #include "defs.h"
  23
  24 #include "arm-tdep.h"
  25
  26 #ifdef FETCH_INFERIOR_REGISTERS
  27 #include <sys/types.h>
  28 #include <sys/ptrace.h>
  29 #include <machine/reg.h>
  30 #include <machine/frame.h>
  31 #include "inferior.h"
  32
  33 void
  34 fetch_inferior_registers (regno)
  35      int regno;
  36 {
  37   struct reg inferior_registers;
  38   struct fpreg inferior_fpregisters;
  39
  40   ptrace (PT_GETREGS, PIDGET (inferior_ptid),
  41           (PTRACE_ARG3_TYPE) &inferior_registers, 0);
  42   memcpy (&registers[REGISTER_BYTE (0)], &inferior_registers,
  43           16 * sizeof (unsigned int));
  44   memcpy (&registers[REGISTER_BYTE (ARM_PS_REGNUM)],
  45           &inferior_registers.r_cpsr,
  46           sizeof (unsigned int));
  47   ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
  48           (PTRACE_ARG3_TYPE) &inferior_fpregisters, 0);
  49   memcpy (&registers[REGISTER_BYTE (ARM_F0_REGNUM)],
  50           &inferior_fpregisters.fpr[0],
  51           8 * sizeof (fp_reg_t));
  52   memcpy (&registers[REGISTER_BYTE (ARM_FPS_REGNUM)],
  53           &inferior_fpregisters.fpr_fpsr, sizeof (unsigned int));
  54   registers_fetched ();
  55 }
  56
  57 void
  58 store_inferior_registers (regno)
  59      int regno;
  60 {
  61   struct reg inferior_registers;
  62
  63   memcpy (&inferior_registers, &registers[REGISTER_BYTE (0)],
  64           16 * sizeof (unsigned int));
  65   memcpy (&inferior_registers.r_cpsr,
  66           &registers[REGISTER_BYTE (ARM_PS_REGNUM)],
  67           sizeof (unsigned int));
  68   ptrace (PT_SETREGS, PIDGET (inferior_ptid),
  69           (PTRACE_ARG3_TYPE) &inferior_registers, 0);
  70
  71   /* XXX Set FP regs. */
  72 }
  73
  74 struct md_core
  75 {
  76   struct reg intreg;
  77   struct fpreg freg;
  78 };
  79
  80 void
  81 fetch_core_registers (core_reg_sect, core_reg_size, which, ignore)
  82      char *core_reg_sect;
  83      unsigned core_reg_size;
  84      int which;
  85      CORE_ADDR ignore;
  86 {
  87   struct md_core *core_reg = (struct md_core *) core_reg_sect;
  88
  89   /* integer registers */
  90   memcpy (&registers[REGISTER_BYTE (0)], &core_reg->intreg,
  91           sizeof (struct reg));
  92   /* floating point registers */
  93   /* XXX */
  94 }
  95
  96 #else
  97 #error Not FETCH_INFERIOR_REGISTERS
  98 #endif /* !FETCH_INFERIOR_REGISTERS */
  99
 100 int
 101 get_longjmp_target (CORE_ADDR *addr)
 102 {
 103   return 0;
 104 }