(m32r_handle_align): Declare type of fragp.
[deliverable/binutils-gdb.git] / gdb / a68v-nat.c
1 /* Host-dependent code for Apollo-68ks for GDB, the GNU debugger.
2 Copyright 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
3
4 This file is part of GDB.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21 #include "defs.h"
22 #include "inferior.h"
23
24 #ifndef _ISP__M68K
25 #define _ISP__M68K 1
26 #endif
27
28 #include <ptrace.h>
29
30 extern int errno;
31
32 void
33 fetch_inferior_registers (int ignored)
34 {
35 struct ptrace_$data_regs_m68k inferior_registers;
36 struct ptrace_$floating_regs_m68k inferior_fp_registers;
37 struct ptrace_$control_regs_m68k inferior_control_registers;
38
39 ptrace_$init_control (&inferior_control_registers);
40 inferior_fp_registers.size = sizeof (inferior_fp_registers);
41
42 registers_fetched ();
43
44 ptrace (PTRACE_GETREGS, inferior_pid,
45 (PTRACE_ARG3_TYPE) & inferior_registers,
46 ptrace_$data_set,
47 (PTRACE_ARG3_TYPE) & inferior_registers,
48 ptrace_$data_set);
49
50 ptrace (PTRACE_GETREGS, inferior_pid,
51 (PTRACE_ARG3_TYPE) & inferior_fp_registers,
52 ptrace_$floating_set_m68k,
53 (PTRACE_ARG3_TYPE) & inferior_fp_registers,
54 ptrace_$floating_set_m68k);
55
56 ptrace (PTRACE_GETREGS, inferior_pid,
57 (PTRACE_ARG3_TYPE) & inferior_control_registers,
58 ptrace_$control_set_m68k,
59 (PTRACE_ARG3_TYPE) & inferior_control_registers,
60 ptrace_$control_set_m68k);
61
62 bcopy (&inferior_registers, registers, 16 * 4);
63 bcopy (&inferior_fp_registers, &registers[REGISTER_BYTE (FP0_REGNUM)],
64 sizeof inferior_fp_registers.regs);
65 *(int *) &registers[REGISTER_BYTE (PS_REGNUM)] = inferior_control_registers.sr;
66 *(int *) &registers[REGISTER_BYTE (PC_REGNUM)] = inferior_control_registers.pc;
67 }
68
69 /* Store our register values back into the inferior.
70 If REGNO is -1, do this for all registers.
71 Otherwise, REGNO specifies which register (so we can save time). */
72
73 void
74 store_inferior_registers (int regno)
75 {
76 struct ptrace_$data_regs_m68k inferior_registers;
77 struct ptrace_$floating_regs_m68k inferior_fp_registers;
78 struct ptrace_$control_regs_m68k inferior_control_registers;
79
80 ptrace_$init_control (&inferior_control_registers);
81 inferior_fp_registers.size = sizeof (inferior_fp_registers);
82
83 ptrace (PTRACE_GETREGS, inferior_pid,
84 (PTRACE_ARG3_TYPE) & inferior_fp_registers,
85 ptrace_$floating_set_m68k,
86 (PTRACE_ARG3_TYPE) & inferior_fp_registers,
87 ptrace_$floating_set_m68k);
88
89 ptrace (PTRACE_GETREGS, inferior_pid,
90 (PTRACE_ARG3_TYPE) & inferior_control_registers,
91 ptrace_$control_set_m68k,
92 (PTRACE_ARG3_TYPE) & inferior_control_registers,
93 ptrace_$control_set_m68k);
94
95 bcopy (registers, &inferior_registers, sizeof (inferior_registers));
96
97 bcopy (&registers[REGISTER_BYTE (FP0_REGNUM)], inferior_fp_registers.regs,
98 sizeof inferior_fp_registers.regs);
99
100 inferior_control_registers.sr = *(int *) &registers[REGISTER_BYTE (PS_REGNUM)];
101 inferior_control_registers.pc = *(int *) &registers[REGISTER_BYTE (PC_REGNUM)];
102
103 ptrace (PTRACE_SETREGS, inferior_pid,
104 (PTRACE_ARG3_TYPE) & inferior_registers,
105 ptrace_$data_set_m68k,
106 (PTRACE_ARG3_TYPE) & inferior_registers,
107 ptrace_$data_set_m68k);
108
109 ptrace (PTRACE_SETREGS, inferior_pid,
110 (PTRACE_ARG3_TYPE) & inferior_fp_registers,
111 ptrace_$floating_set_m68k,
112 (PTRACE_ARG3_TYPE) & inferior_fp_registers,
113 ptrace_$floating_set_m68k);
114
115 ptrace (PTRACE_SETREGS, inferior_pid,
116 (PTRACE_ARG3_TYPE) & inferior_control_registers,
117 ptrace_$control_set_m68k,
118 (PTRACE_ARG3_TYPE) & inferior_control_registers,
119 ptrace_$control_set_m68k);
120 }
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