/* Native-dependent code for Alpha BSD's. Copyright 2000, 2001, 2002 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 2 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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "defs.h" #include "inferior.h" #include "regcache.h" #include "alpha-tdep.h" #include "alphabsd-tdep.h" #include <sys/types.h> #include <sys/ptrace.h> #include <machine/reg.h> #ifdef HAVE_SYS_PROCFS_H #include <sys/procfs.h> #endif #ifndef HAVE_GREGSET_T typedef struct reg gregset_t; #endif #ifndef HAVE_FPREGSET_T typedef struct fpreg fpregset_t; #endif #include "gregset.h" /* Provide *regset() wrappers around the generic Alpha BSD register supply/fill routines. */ void supply_gregset (gregset_t *gregsetp) { alphabsd_supply_reg ((char *) gregsetp, -1); } void fill_gregset (gregset_t *gregsetp, int regno) { alphabsd_fill_reg ((char *) gregsetp, regno); } void supply_fpregset (fpregset_t *fpregsetp) { alphabsd_supply_fpreg ((char *) fpregsetp, -1); } void fill_fpregset (fpregset_t *fpregsetp, int regno) { alphabsd_fill_fpreg ((char *) fpregsetp, regno); } /* Determine if PT_GETREGS fetches this register. */ static int getregs_supplies (int regno) { return ((regno >= ALPHA_V0_REGNUM && regno <= ALPHA_ZERO_REGNUM) || regno >= PC_REGNUM); } /* Fetch register REGNO from the inferior. If REGNO is -1, do this for all registers (including the floating point registers). */ void fetch_inferior_registers (int regno) { if (regno == -1 || getregs_supplies (regno)) { struct reg gregs; if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) &gregs, 0) == -1) perror_with_name ("Couldn't get registers"); alphabsd_supply_reg ((char *) &gregs, regno); if (regno != -1) return; } if (regno == -1 || regno >= FP0_REGNUM) { struct fpreg fpregs; if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) perror_with_name ("Couldn't get floating point status"); alphabsd_supply_fpreg ((char *) &fpregs, regno); } } /* Store register REGNO back into the inferior. If REGNO is -1, do this for all registers (including the floating point registers). */ void store_inferior_registers (int regno) { if (regno == -1 || getregs_supplies (regno)) { struct reg gregs; if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) &gregs, 0) == -1) perror_with_name ("Couldn't get registers"); alphabsd_fill_reg ((char *) &gregs, regno); if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) &gregs, 0) == -1) perror_with_name ("Couldn't write registers"); if (regno != -1) return; } if (regno == -1 || regno >= FP0_REGNUM) { struct fpreg fpregs; if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) perror_with_name ("Couldn't get floating point status"); alphabsd_fill_fpreg ((char *) &fpregs, regno); if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) perror_with_name ("Couldn't write floating point status"); } }