/* Native-dependent code for MIPS systems running NetBSD. Copyright (C) 2000-2014 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 3 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, see <http://www.gnu.org/licenses/>. */ #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 (struct gdbarch *gdbarch, int regno) { return ((regno) >= MIPS_ZERO_REGNUM && (regno) <= gdbarch_pc_regnum (gdbarch)); } static void mipsnbsd_fetch_inferior_registers (struct target_ops *ops, struct regcache *regcache, int regno) { struct gdbarch *gdbarch = get_regcache_arch (regcache); if (regno == -1 || getregs_supplies (gdbarch, regno)) { struct reg regs; if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid), (PTRACE_TYPE_ARG3) ®s, 0) == -1) perror_with_name (_("Couldn't get registers")); mipsnbsd_supply_reg (regcache, (char *) ®s, regno); if (regno != -1) return; } if (regno == -1 || regno >= gdbarch_fp0_regnum (get_regcache_arch (regcache))) { struct fpreg fpregs; if (ptrace (PT_GETFPREGS, ptid_get_pid (inferior_ptid), (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) perror_with_name (_("Couldn't get floating point status")); mipsnbsd_supply_fpreg (regcache, (char *) &fpregs, regno); } } static void mipsnbsd_store_inferior_registers (struct target_ops *ops, struct regcache *regcache, int regno) { struct gdbarch *gdbarch = get_regcache_arch (regcache); if (regno == -1 || getregs_supplies (gdbarch, regno)) { struct reg regs; if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid), (PTRACE_TYPE_ARG3) ®s, 0) == -1) perror_with_name (_("Couldn't get registers")); mipsnbsd_fill_reg (regcache, (char *) ®s, regno); if (ptrace (PT_SETREGS, ptid_get_pid (inferior_ptid), (PTRACE_TYPE_ARG3) ®s, 0) == -1) perror_with_name (_("Couldn't write registers")); if (regno != -1) return; } if (regno == -1 || regno >= gdbarch_fp0_regnum (get_regcache_arch (regcache))) { struct fpreg fpregs; if (ptrace (PT_GETFPREGS, ptid_get_pid (inferior_ptid), (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) perror_with_name (_("Couldn't get floating point status")); mipsnbsd_fill_fpreg (regcache, (char *) &fpregs, regno); if (ptrace (PT_SETFPREGS, ptid_get_pid (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); }