1/*********************************************************************** 2Copyright 2003-2006 Raza Microelectronics, Inc.(RMI). 3This is a derived work from software originally provided by the external 4entity identified below. The licensing terms and warranties specified in 5the header of the original work apply to this derived work. 6Contribution by RMI: 7*****************************#RMI_1#**********************************/ 8/* Native-dependent code for MIPS systems running NetBSD. 9 Copyright 2000, 2001, 2002 Free Software Foundation, Inc. 10 11 This file is part of GDB. 12 13 This program is free software; you can redistribute it and/or modify 14 it under the terms of the GNU General Public License as published by 15 the Free Software Foundation; either version 2 of the License, or 16 (at your option) any later version. 17 18 This program is distributed in the hope that it will be useful, 19 but WITHOUT ANY WARRANTY; without even the implied warranty of 20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 GNU General Public License for more details. 22 23 You should have received a copy of the GNU General Public License 24 along with this program; if not, write to the Free Software 25 Foundation, Inc., 59 Temple Place - Suite 330, 26 Boston, MA 02111-1307, USA. */ 27 28#include "defs.h" 29#include "inferior.h" 30#include "regcache.h" 31 32#include "mipsfbsd-tdep.h" 33 34#include <sys/types.h> 35#include <sys/ptrace.h> 36#include <machine/reg.h> 37 38/* Determine if PT_GETREGS fetches this register. */ 39static int 40getregs_supplies (int regno) 41{ 42 return ((regno) >= ZERO_REGNUM && (regno) <= PC_REGNUM); 43} 44 45void 46fetch_inferior_registers (int regno) 47{ 48 if (regno == -1 || getregs_supplies (regno)) 49 { 50 struct reg regs; 51 52 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), 53 (PTRACE_ARG3_TYPE) ®s, 0) == -1) 54 perror_with_name ("Couldn't get registers"); 55 56 mipsfbsd_supply_reg ((char *) ®s, regno); 57 if (regno != -1) 58 return; 59 } 60 61 if (regno == -1 || regno >= FP0_REGNUM) 62 { 63 struct fpreg fpregs; 64 65 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), 66 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) 67 perror_with_name ("Couldn't get floating point status"); 68 69 mipsfbsd_supply_fpreg ((char *) &fpregs, regno); 70 } 71} 72 73void 74store_inferior_registers (int regno) 75{ 76 if (regno == -1 || getregs_supplies (regno)) 77 { 78 struct reg regs; 79 80 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), 81 (PTRACE_ARG3_TYPE) ®s, 0) == -1) 82 perror_with_name ("Couldn't get registers"); 83 84 mipsfbsd_fill_reg ((char *) ®s, regno); 85 86 if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), 87 (PTRACE_ARG3_TYPE) ®s, 0) == -1) 88 perror_with_name ("Couldn't write registers"); 89 90 if (regno != -1) 91 return; 92 } 93 94 if (regno == -1 || regno >= FP0_REGNUM) 95 { 96 struct fpreg fpregs; 97 98 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), 99 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) 100 perror_with_name ("Couldn't get floating point status"); 101 102 mipsfbsd_fill_fpreg ((char *) &fpregs, regno); 103 104 if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid), 105 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) 106 perror_with_name ("Couldn't write floating point status"); 107 } 108} 109