1 /* Native-dependent code for PowerPC's running NetBSD, for GDB.
2 Copyright 2002 Free Software Foundation, Inc.
3 Contributed by Wasabi Systems, Inc.
5 This file is part of GDB.
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.
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.
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. */
22 #include <sys/types.h>
23 #include <sys/ptrace.h>
24 #include <machine/reg.h>
32 #include "ppcnbsd-tdep.h"
34 /* Returns true if PT_GETREGS fetches this register. */
36 getregs_supplies (int regno)
38 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
40 return ((regno >= 0 && regno <= 31)
41 || regno == tdep->ppc_lr_regnum
42 || regno == tdep->ppc_cr_regnum
43 || regno == tdep->ppc_xer_regnum
44 || regno == tdep->ppc_ctr_regnum
45 || regno == PC_REGNUM);
48 /* Like above, but for PT_GETFPREGS. */
50 getfpregs_supplies (int regno)
52 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
54 return ((regno >= FP0_REGNUM && regno <= FP0_REGNUM + 31)
55 || regno == tdep->ppc_fpscr_regnum);
59 fetch_inferior_registers (int regno)
61 if (regno == -1 || getregs_supplies (regno))
65 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
66 (PTRACE_ARG3_TYPE) ®s, 0) == -1)
67 perror_with_name ("Couldn't get registers");
69 ppcnbsd_supply_reg ((char *) ®s, regno);
74 if (regno == -1 || getfpregs_supplies (regno))
78 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
79 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
80 perror_with_name ("Couldn't get FP registers");
82 ppcnbsd_supply_fpreg ((char *) &fpregs, regno);
89 store_inferior_registers (int regno)
91 if (regno == -1 || getregs_supplies (regno))
95 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
96 (PTRACE_ARG3_TYPE) ®s, 0) == -1)
97 perror_with_name ("Couldn't get registers");
99 ppcnbsd_fill_reg ((char *) ®s, regno);
101 if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
102 (PTRACE_ARG3_TYPE) ®s, 0) == -1)
103 perror_with_name ("Couldn't write registers");
109 if (regno == -1 || getfpregs_supplies (regno))
113 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
114 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
115 perror_with_name ("Couldn't get FP registers");
117 ppcnbsd_fill_fpreg ((char *) &fpregs, regno);
119 if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
120 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
121 perror_with_name ("Couldn't set FP registers");