| /* Native-dependent code for MIPS systems running NetBSD. |
| |
| Copyright (C) 2000, 2001, 2002, 2004 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #include "defs.h" |
| #include "inferior.h" |
| #include "regcache.h" |
| #include "target.h" |
| |
| #include <sys/types.h> |
| #include <sys/ptrace.h> |
| #include <machine/reg.h> |
| |
| #include "mips-tdep.h" |
| #include "mipsnbsd-tdep.h" |
| #include "inf-ptrace.h" |
| |
| /* Determine if PT_GETREGS fetches this register. */ |
| static int |
| getregs_supplies (int regno) |
| { |
| return ((regno) >= MIPS_ZERO_REGNUM && (regno) <= PC_REGNUM); |
| } |
| |
| static void |
| mipsnbsd_fetch_inferior_registers (int regno) |
| { |
| if (regno == -1 || getregs_supplies (regno)) |
| { |
| struct reg regs; |
| |
| if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), |
| (PTRACE_TYPE_ARG3) ®s, 0) == -1) |
| perror_with_name (_("Couldn't get registers")); |
| |
| mipsnbsd_supply_reg ((char *) ®s, regno); |
| if (regno != -1) |
| return; |
| } |
| |
| if (regno == -1 || regno >= FP0_REGNUM) |
| { |
| struct fpreg fpregs; |
| |
| if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), |
| (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) |
| perror_with_name (_("Couldn't get floating point status")); |
| |
| mipsnbsd_supply_fpreg ((char *) &fpregs, regno); |
| } |
| } |
| |
| static void |
| mipsnbsd_store_inferior_registers (int regno) |
| { |
| if (regno == -1 || getregs_supplies (regno)) |
| { |
| struct reg regs; |
| |
| if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), |
| (PTRACE_TYPE_ARG3) ®s, 0) == -1) |
| perror_with_name (_("Couldn't get registers")); |
| |
| mipsnbsd_fill_reg ((char *) ®s, regno); |
| |
| if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), |
| (PTRACE_TYPE_ARG3) ®s, 0) == -1) |
| perror_with_name (_("Couldn't write registers")); |
| |
| if (regno != -1) |
| return; |
| } |
| |
| if (regno == -1 || regno >= FP0_REGNUM) |
| { |
| struct fpreg fpregs; |
| |
| if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), |
| (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) |
| perror_with_name (_("Couldn't get floating point status")); |
| |
| mipsnbsd_fill_fpreg ((char *) &fpregs, regno); |
| |
| if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid), |
| (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) |
| perror_with_name (_("Couldn't write floating point status")); |
| } |
| } |
| |
| |
| /* Provide a prototype to silence -Wmissing-prototypes. */ |
| void _initialize_mipsnbsd_nat (void); |
| |
| void |
| _initialize_mipsnbsd_nat (void) |
| { |
| struct target_ops *t; |
| |
| t = inf_ptrace_target (); |
| t->to_fetch_registers = mipsnbsd_fetch_inferior_registers; |
| t->to_store_registers = mipsnbsd_store_inferior_registers; |
| add_target (t); |
| } |