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
>= FP0_REGNUM
&& regno
<= FP0_REGNUM
+ 31)
53 || regno
== tdep
->ppc_fpscr_regnum
);
57 fetch_inferior_registers (int regno
)
59 if (regno
== -1 || getregs_supplies (regno
))
63 if (ptrace (PT_GETREGS
, PIDGET (inferior_ptid
),
64 (PTRACE_ARG3_TYPE
) ®s
, 0) == -1)
65 perror_with_name ("Couldn't get registers");
67 ppcnbsd_supply_reg ((char *) ®s
, regno
);
72 if (regno
== -1 || getfpregs_supplies (regno
))
76 if (ptrace (PT_GETFPREGS
, PIDGET (inferior_ptid
),
77 (PTRACE_ARG3_TYPE
) &fpregs
, 0) == -1)
78 perror_with_name ("Couldn't get FP registers");
80 ppcnbsd_supply_fpreg ((char *) &fpregs
, regno
);
87 store_inferior_registers (int regno
)
89 if (regno
== -1 || getregs_supplies (regno
))
93 if (ptrace (PT_GETREGS
, PIDGET (inferior_ptid
),
94 (PTRACE_ARG3_TYPE
) ®s
, 0) == -1)
95 perror_with_name ("Couldn't get registers");
97 ppcnbsd_fill_reg ((char *) ®s
, regno
);
99 if (ptrace (PT_SETREGS
, PIDGET (inferior_ptid
),
100 (PTRACE_ARG3_TYPE
) ®s
, 0) == -1)
101 perror_with_name ("Couldn't write registers");
107 if (regno
== -1 || getfpregs_supplies (regno
))
111 if (ptrace (PT_GETFPREGS
, PIDGET (inferior_ptid
),
112 (PTRACE_ARG3_TYPE
) &fpregs
, 0) == -1)
113 perror_with_name ("Couldn't get FP registers");
115 ppcnbsd_fill_fpreg ((char *) &fpregs
, regno
);
117 if (ptrace (PT_SETFPREGS
, PIDGET (inferior_ptid
),
118 (PTRACE_ARG3_TYPE
) &fpregs
, 0) == -1)
119 perror_with_name ("Couldn't set FP registers");
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