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[/] [or1k/] [trunk/] [gdb-5.3/] [gdb/] [ppcnbsd-nat.c] - Rev 1773
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/* Native-dependent code for PowerPC's running NetBSD, for GDB. Copyright 2002 Free Software Foundation, Inc. Contributed by Wasabi Systems, 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 <sys/types.h> #include <sys/ptrace.h> #include <machine/reg.h> #include "defs.h" #include "inferior.h" #include "ppc-tdep.h" #include "ppcnbsd-tdep.h" /* Returns true if PT_GETREGS fetches this register. */ static int getregs_supplies (int regno) { struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); return ((regno >= 0 && regno <= 31) || regno == tdep->ppc_lr_regnum || regno == tdep->ppc_cr_regnum || regno == tdep->ppc_xer_regnum || regno == tdep->ppc_ctr_regnum || regno == PC_REGNUM); } /* Like above, but for PT_GETFPREGS. */ static int getfpregs_supplies (int regno) { struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); return ((regno >= FP0_REGNUM && regno <= FP0_REGNUM + 31) || regno == tdep->ppc_fpscr_regnum); } void fetch_inferior_registers (int regno) { if (regno == -1 || getregs_supplies (regno)) { struct reg regs; if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) ®s, 0) == -1) perror_with_name ("Couldn't get registers"); ppcnbsd_supply_reg ((char *) ®s, regno); if (regno != -1) return; } if (regno == -1 || getfpregs_supplies (regno)) { struct fpreg fpregs; if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) perror_with_name ("Couldn't get FP registers"); ppcnbsd_supply_fpreg ((char *) &fpregs, regno); if (regno != -1) return; } } void store_inferior_registers (int regno) { if (regno == -1 || getregs_supplies (regno)) { struct reg regs; if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) ®s, 0) == -1) perror_with_name ("Couldn't get registers"); ppcnbsd_fill_reg ((char *) ®s, regno); if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) ®s, 0) == -1) perror_with_name ("Couldn't write registers"); if (regno != -1) return; } if (regno == -1 || getfpregs_supplies (regno)) { struct fpreg fpregs; if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) perror_with_name ("Couldn't get FP registers"); ppcnbsd_fill_fpreg ((char *) &fpregs, regno); if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid), (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) perror_with_name ("Couldn't set FP registers"); } }
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