1/* Native-dependent code for AMD64 BSD's. 2 3 Copyright 2003, 2004 Free Software Foundation, Inc. 4 5 This file is part of GDB. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 59 Temple Place - Suite 330, 20 Boston, MA 02111-1307, USA. */ 21 22#include "defs.h" 23#include "inferior.h" 24#include "regcache.h" 25 26/* We include <signal.h> to make sure `struct fxsave64' is defined on 27 NetBSD, since NetBSD's <machine/reg.h> needs it. */ 28#include "gdb_assert.h" 29#include <signal.h> 30#include <sys/types.h> 31#include <sys/ptrace.h> 32#include <machine/reg.h> 33 34#include "amd64-tdep.h" 35#include "amd64-nat.h" 36 37 38/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this 39 for all registers (including the floating-point registers). */ 40 41void 42fetch_inferior_registers (int regnum) 43{ 44 if (regnum == -1 || amd64_native_gregset_supplies_p (regnum)) 45 { 46 struct reg regs; 47 48 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), 49 (PTRACE_ARG3_TYPE) ®s, 0) == -1) 50 perror_with_name ("Couldn't get registers"); 51 52 amd64_supply_native_gregset (current_regcache, ®s, -1); 53 if (regnum != -1) 54 return; 55 } 56 57 if (regnum == -1 || regnum >= AMD64_ST0_REGNUM) 58 { 59 struct fpreg fpregs; 60 61 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), 62 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) 63 perror_with_name ("Couldn't get floating point status"); 64 65 amd64_supply_fxsave (current_regcache, -1, &fpregs); 66 } 67} 68 69/* Store register REGNUM back into the inferior. If REGNUM is -1, do 70 this for all registers (including the floating-point registers). */ 71 72void 73store_inferior_registers (int regnum) 74{ 75 if (regnum == -1 || amd64_native_gregset_supplies_p (regnum)) 76 { 77 struct reg regs; 78 79 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), 80 (PTRACE_ARG3_TYPE) ®s, 0) == -1) 81 perror_with_name ("Couldn't get registers"); 82 83 amd64_collect_native_gregset (current_regcache, ®s, regnum); 84 85 if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), 86 (PTRACE_ARG3_TYPE) ®s, 0) == -1) 87 perror_with_name ("Couldn't write registers"); 88 89 if (regnum != -1) 90 return; 91 } 92 93 if (regnum == -1 || regnum >= AMD64_ST0_REGNUM) 94 { 95 struct fpreg fpregs; 96 97 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), 98 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) 99 perror_with_name ("Couldn't get floating point status"); 100 101 amd64_fill_fxsave ((char *) &fpregs, regnum); 102 103 if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid), 104 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) 105 perror_with_name ("Couldn't write floating point status"); 106 } 107} 108