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>
30 #include "ppcnbsd-tdep.h"
32 /* Returns true if PT_GETREGS fetches this register. */
34 getregs_supplies (int regno)
36 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
38 return ((regno >= 0 && regno <= 31)
39 || regno == tdep->ppc_lr_regnum
40 || regno == tdep->ppc_cr_regnum
41 || regno == tdep->ppc_xer_regnum
42 || regno == tdep->ppc_ctr_regnum
43 || regno == PC_REGNUM);
46 /* Like above, but for PT_GETFPREGS. */
48 getfpregs_supplies (int regno)
50 struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
52 return ((regno >= tdep->ppc_fp0_regnum
53 && regno < tdep->ppc_fp0_regnum + ppc_num_fprs)
54 || regno == tdep->ppc_fpscr_regnum);
58 fetch_inferior_registers (int regno)
60 if (regno == -1 || getregs_supplies (regno))
64 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
65 (PTRACE_ARG3_TYPE) ®s, 0) == -1)
66 perror_with_name ("Couldn't get registers");
68 ppcnbsd_supply_reg ((char *) ®s, regno);
73 if (regno == -1 || getfpregs_supplies (regno))
77 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
78 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
79 perror_with_name ("Couldn't get FP registers");
81 ppcnbsd_supply_fpreg ((char *) &fpregs, regno);
88 store_inferior_registers (int regno)
90 if (regno == -1 || getregs_supplies (regno))
94 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
95 (PTRACE_ARG3_TYPE) ®s, 0) == -1)
96 perror_with_name ("Couldn't get registers");
98 ppcnbsd_fill_reg ((char *) ®s, regno);
100 if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
101 (PTRACE_ARG3_TYPE) ®s, 0) == -1)
102 perror_with_name ("Couldn't write registers");
108 if (regno == -1 || getfpregs_supplies (regno))
112 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
113 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
114 perror_with_name ("Couldn't get FP registers");
116 ppcnbsd_fill_fpreg ((char *) &fpregs, regno);
118 if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
119 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
120 perror_with_name ("Couldn't set FP registers");