* i386v4-nat.c (supply_gregset, supply_fpregset, fill_gregset)
[deliverable/binutils-gdb.git] / gdb / mipsnbsd-nat.c
CommitLineData
45888261 1/* Native-dependent code for MIPS systems running NetBSD.
9f8e0089
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2
3 Copyright 2000, 2001, 2002, 2004 Free Software Foundation, Inc.
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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 "defs.h"
23#include "inferior.h"
24#include "regcache.h"
25
4c7d22cb 26#include "mips-tdep.h"
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27#include "mipsnbsd-tdep.h"
28
29#include <sys/types.h>
30#include <sys/ptrace.h>
31#include <machine/reg.h>
32
33/* Determine if PT_GETREGS fetches this register. */
34static int
35getregs_supplies (int regno)
36{
4c7d22cb 37 return ((regno) >= MIPS_ZERO_REGNUM && (regno) <= PC_REGNUM);
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38}
39
40void
41fetch_inferior_registers (int regno)
42{
43 if (regno == -1 || getregs_supplies (regno))
44 {
45 struct reg regs;
46
47 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
9f8e0089 48 (PTRACE_TYPE_ARG3) &regs, 0) == -1)
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49 perror_with_name ("Couldn't get registers");
50
51 mipsnbsd_supply_reg ((char *) &regs, regno);
52 if (regno != -1)
53 return;
54 }
55
56 if (regno == -1 || regno >= FP0_REGNUM)
57 {
58 struct fpreg fpregs;
59
60 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
9f8e0089 61 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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62 perror_with_name ("Couldn't get floating point status");
63
64 mipsnbsd_supply_fpreg ((char *) &fpregs, regno);
65 }
66}
67
68void
69store_inferior_registers (int regno)
70{
71 if (regno == -1 || getregs_supplies (regno))
72 {
73 struct reg regs;
74
75 if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
9f8e0089 76 (PTRACE_TYPE_ARG3) &regs, 0) == -1)
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77 perror_with_name ("Couldn't get registers");
78
79 mipsnbsd_fill_reg ((char *) &regs, regno);
80
81 if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
9f8e0089 82 (PTRACE_TYPE_ARG3) &regs, 0) == -1)
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83 perror_with_name ("Couldn't write registers");
84
85 if (regno != -1)
86 return;
87 }
88
89 if (regno == -1 || regno >= FP0_REGNUM)
90 {
91 struct fpreg fpregs;
92
93 if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
9f8e0089 94 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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95 perror_with_name ("Couldn't get floating point status");
96
97 mipsnbsd_fill_fpreg ((char *) &fpregs, regno);
98
99 if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
9f8e0089 100 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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101 perror_with_name ("Couldn't write floating point status");
102 }
103}
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