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 #include "regcache.h"
  33
  34 void
  35 fetch_inferior_registers (regno)
  36      int regno;
  37 {
  38   struct reg inferior_registers;
  39   struct fpreg inferior_fpregisters;
  40
  41   ptrace (PT_GETREGS, PIDGET (inferior_ptid),
  42           (PTRACE_ARG3_TYPE) &inferior_registers, 0);
  43   memcpy (&registers[REGISTER_BYTE (0)], &inferior_registers,
  44           16 * sizeof (unsigned int));
  45   memcpy (&registers[REGISTER_BYTE (ARM_PS_REGNUM)],
  46           &inferior_registers.r_cpsr,
  47           sizeof (unsigned int));
  48   ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
  49           (PTRACE_ARG3_TYPE) &inferior_fpregisters, 0);
  50   memcpy (&registers[REGISTER_BYTE (ARM_F0_REGNUM)],
  51           &inferior_fpregisters.fpr[0],
  52           8 * sizeof (fp_reg_t));
  53   memcpy (&registers[REGISTER_BYTE (ARM_FPS_REGNUM)],
  54           &inferior_fpregisters.fpr_fpsr, sizeof (unsigned int));
  55   registers_fetched ();
  56 }
  57
  58 void
  59 store_inferior_registers (regno)
  60      int regno;
  61 {
  62   struct reg inferior_registers;
  63
  64   memcpy (&inferior_registers, &registers[REGISTER_BYTE (0)],
  65           16 * sizeof (unsigned int));
  66   memcpy (&inferior_registers.r_cpsr,
  67           &registers[REGISTER_BYTE (ARM_PS_REGNUM)],
  68           sizeof (unsigned int));
  69   ptrace (PT_SETREGS, PIDGET (inferior_ptid),
  70           (PTRACE_ARG3_TYPE) &inferior_registers, 0);
  71
  72   /* XXX Set FP regs. */
  73 }
  74
  75 struct md_core
  76 {
  77   struct reg intreg;
  78   struct fpreg freg;
  79 };
  80
  81 void
  82 fetch_core_registers (core_reg_sect, core_reg_size, which, ignore)
  83      char *core_reg_sect;
  84      unsigned core_reg_size;
  85      int which;
  86      CORE_ADDR ignore;
  87 {
  88   struct md_core *core_reg = (struct md_core *) core_reg_sect;
  89
  90   /* integer registers */
  91   memcpy (&registers[REGISTER_BYTE (0)], &core_reg->intreg,
  92           sizeof (struct reg));
  93   /* floating point registers */
  94   /* XXX */
  95 }
  96
  97 #else
  98 #error Not FETCH_INFERIOR_REGISTERS
  99 #endif /* !FETCH_INFERIOR_REGISTERS */
 100
 101 int
 102 get_longjmp_target (CORE_ADDR *addr)
 103 {
 104   return 0;
 105 }