1/* Native-dependent code for NetBSD/sh. 2 3 Copyright (C) 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc. 4 5 Contributed by Wasabi Systems, Inc. 6 7 This file is part of GDB. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 21 22#include "defs.h" 23#include "inferior.h" 24 25#include <sys/types.h> 26#include <sys/ptrace.h> 27#include <machine/reg.h> 28 29#include "sh-tdep.h" 30#include "shnbsd-tdep.h" 31#include "inf-ptrace.h" 32#include "regcache.h" 33 34 35/* Determine if PT_GETREGS fetches this register. */ 36#define GETREGS_SUPPLIES(regno) \ 37 (((regno) >= R0_REGNUM && (regno) <= (R0_REGNUM + 15)) \ 38|| (regno) == gdbarch_pc_regnum (current_gdbarch) || (regno) == PR_REGNUM \ 39|| (regno) == MACH_REGNUM || (regno) == MACL_REGNUM \ 40|| (regno) == SR_REGNUM) 41 42static void 43shnbsd_fetch_inferior_registers (struct regcache *regcache, int regno) 44{ 45 if (regno == -1 || GETREGS_SUPPLIES (regno)) 46 { 47 struct reg inferior_registers; 48 49 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), 50 (PTRACE_TYPE_ARG3) &inferior_registers, 0) == -1) 51 perror_with_name (_("Couldn't get registers")); 52 53 shnbsd_supply_reg (regcache, (char *) &inferior_registers, regno); 54 55 if (regno != -1) 56 return; 57 } 58} 59 60static void 61shnbsd_store_inferior_registers (struct regcache *regcache, int regno) 62{ 63 if (regno == -1 || GETREGS_SUPPLIES (regno)) 64 { 65 struct reg inferior_registers; 66 67 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), 68 (PTRACE_TYPE_ARG3) &inferior_registers, 0) == -1) 69 perror_with_name (_("Couldn't get registers")); 70 71 shnbsd_fill_reg (regcache, (char *) &inferior_registers, regno); 72 73 if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), 74 (PTRACE_TYPE_ARG3) &inferior_registers, 0) == -1) 75 perror_with_name (_("Couldn't set registers")); 76 77 if (regno != -1) 78 return; 79 } 80} 81 82/* Provide a prototype to silence -Wmissing-prototypes. */ 83void _initialize_shnbsd_nat (void); 84 85void 86_initialize_shnbsd_nat (void) 87{ 88 struct target_ops *t; 89 90 t = inf_ptrace_target (); 91 t->to_fetch_registers = shnbsd_fetch_inferior_registers; 92 t->to_store_registers = shnbsd_store_inferior_registers; 93 add_target (t); 94} 95