1 /* Native-dependent code for SuperH running NetBSD, for GDB.
2 Copyright 2002, 2003 Free Software Foundation, Inc.
3 Contributed by Wasabi Systems, Inc.
4
5 This file is part of GDB.
6
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.
11
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.
16
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. */
21
22 #include <sys/types.h>
23 #include <sys/ptrace.h>
24 #include <machine/reg.h>
25
26 #include "defs.h"
27 #include "inferior.h"
28
29 #include "sh-tdep.h"
30 #include "shnbsd-tdep.h"
31
32 /* Determine if PT_GETREGS fetches this register. */
33 #define GETREGS_SUPPLIES(regno) \
34 (((regno) >= R0_REGNUM && (regno) <= (R0_REGNUM + 15)) \
35 || (regno) == PC_REGNUM || (regno) == PR_REGNUM \
36 || (regno) == MACH_REGNUM || (regno) == MACL_REGNUM \
37 || (regno) == SR_REGNUM)
38
39 void
fetch_inferior_registers(int regno)40 fetch_inferior_registers (int regno)
41 {
42 if (regno == -1 || GETREGS_SUPPLIES (regno))
43 {
44 struct reg inferior_registers;
45
46 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
47 (PTRACE_ARG3_TYPE) &inferior_registers, 0) == -1)
48 perror_with_name ("Couldn't get registers");
49
50 shnbsd_supply_reg ((char *) &inferior_registers, regno);
51
52 if (regno != -1)
53 return;
54 }
55 }
56
57 void
store_inferior_registers(int regno)58 store_inferior_registers (int regno)
59 {
60 if (regno == -1 || GETREGS_SUPPLIES (regno))
61 {
62 struct reg inferior_registers;
63
64 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
65 (PTRACE_ARG3_TYPE) &inferior_registers, 0) == -1)
66 perror_with_name ("Couldn't get registers");
67
68 shnbsd_fill_reg ((char *) &inferior_registers, regno);
69
70 if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
71 (PTRACE_ARG3_TYPE) &inferior_registers, 0) == -1)
72 perror_with_name ("Couldn't set registers");
73
74 if (regno != -1)
75 return;
76 }
77 }
78