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[thirdparty/binutils-gdb.git] / gdb / a68v-nat.c
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c906108c
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1/* Host-dependent code for Apollo-68ks for GDB, the GNU debugger.
2 Copyright 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
3
c5aa993b 4 This file is part of GDB.
c906108c 5
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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.
c906108c 10
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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.
c906108c 15
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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. */
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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
30extern int errno;
31
32void
33fetch_inferior_registers (ignored)
c5aa993b 34 int ignored;
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35{
36 struct ptrace_$data_regs_m68k inferior_registers;
37 struct ptrace_$floating_regs_m68k inferior_fp_registers;
38 struct ptrace_$control_regs_m68k inferior_control_registers;
c906108c 39
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40 ptrace_$init_control (&inferior_control_registers);
41 inferior_fp_registers.size = sizeof (inferior_fp_registers);
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42
43 registers_fetched ();
c5aa993b 44
c906108c 45 ptrace (PTRACE_GETREGS, inferior_pid,
c5aa993b 46 (PTRACE_ARG3_TYPE) & inferior_registers,
c906108c 47 ptrace_$data_set,
c5aa993b 48 (PTRACE_ARG3_TYPE) & inferior_registers,
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49 ptrace_$data_set);
50
51 ptrace (PTRACE_GETREGS, inferior_pid,
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52 (PTRACE_ARG3_TYPE) & inferior_fp_registers,
53 ptrace_$floating_set_m68k,
54 (PTRACE_ARG3_TYPE) & inferior_fp_registers,
55 ptrace_$floating_set_m68k);
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56
57 ptrace (PTRACE_GETREGS, inferior_pid,
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58 (PTRACE_ARG3_TYPE) & inferior_control_registers,
59 ptrace_$control_set_m68k,
60 (PTRACE_ARG3_TYPE) & inferior_control_registers,
61 ptrace_$control_set_m68k);
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62
63 bcopy (&inferior_registers, registers, 16 * 4);
64 bcopy (&inferior_fp_registers, &registers[REGISTER_BYTE (FP0_REGNUM)],
65 sizeof inferior_fp_registers.regs);
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66 *(int *) &registers[REGISTER_BYTE (PS_REGNUM)] = inferior_control_registers.sr;
67 *(int *) &registers[REGISTER_BYTE (PC_REGNUM)] = inferior_control_registers.pc;
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68}
69
70/* Store our register values back into the inferior.
71 If REGNO is -1, do this for all registers.
72 Otherwise, REGNO specifies which register (so we can save time). */
73
74void
75store_inferior_registers (regno)
76 int regno;
77{
78 struct ptrace_$data_regs_m68k inferior_registers;
79 struct ptrace_$floating_regs_m68k inferior_fp_registers;
80 struct ptrace_$control_regs_m68k inferior_control_registers;
c906108c 81
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82 ptrace_$init_control (&inferior_control_registers);
83 inferior_fp_registers.size = sizeof (inferior_fp_registers);
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84
85 ptrace (PTRACE_GETREGS, inferior_pid,
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86 (PTRACE_ARG3_TYPE) & inferior_fp_registers,
87 ptrace_$floating_set_m68k,
88 (PTRACE_ARG3_TYPE) & inferior_fp_registers,
89 ptrace_$floating_set_m68k);
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90
91 ptrace (PTRACE_GETREGS, inferior_pid,
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92 (PTRACE_ARG3_TYPE) & inferior_control_registers,
93 ptrace_$control_set_m68k,
94 (PTRACE_ARG3_TYPE) & inferior_control_registers,
95 ptrace_$control_set_m68k);
c906108c 96
c5aa993b 97 bcopy (registers, &inferior_registers, sizeof (inferior_registers));
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98
99 bcopy (&registers[REGISTER_BYTE (FP0_REGNUM)], inferior_fp_registers.regs,
100 sizeof inferior_fp_registers.regs);
101
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102 inferior_control_registers.sr = *(int *) &registers[REGISTER_BYTE (PS_REGNUM)];
103 inferior_control_registers.pc = *(int *) &registers[REGISTER_BYTE (PC_REGNUM)];
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104
105 ptrace (PTRACE_SETREGS, inferior_pid,
c5aa993b 106 (PTRACE_ARG3_TYPE) & inferior_registers,
c906108c 107 ptrace_$data_set_m68k,
c5aa993b 108 (PTRACE_ARG3_TYPE) & inferior_registers,
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109 ptrace_$data_set_m68k);
110
111 ptrace (PTRACE_SETREGS, inferior_pid,
c5aa993b 112 (PTRACE_ARG3_TYPE) & inferior_fp_registers,
c906108c 113 ptrace_$floating_set_m68k,
c5aa993b 114 (PTRACE_ARG3_TYPE) & inferior_fp_registers,
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115 ptrace_$floating_set_m68k);
116
117 ptrace (PTRACE_SETREGS, inferior_pid,
c5aa993b 118 (PTRACE_ARG3_TYPE) & inferior_control_registers,
c906108c 119 ptrace_$control_set_m68k,
c5aa993b 120 (PTRACE_ARG3_TYPE) & inferior_control_registers,
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121 ptrace_$control_set_m68k);
122}