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