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45888261 | 1 | /* Native-dependent code for MIPS systems running NetBSD. |
9f8e0089 MK |
2 | |
3 | Copyright 2000, 2001, 2002, 2004 Free Software Foundation, Inc. | |
45888261 JT |
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" |
45888261 JT |
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. */ | |
34 | static int | |
35 | getregs_supplies (int regno) | |
36 | { | |
4c7d22cb | 37 | return ((regno) >= MIPS_ZERO_REGNUM && (regno) <= PC_REGNUM); |
45888261 JT |
38 | } |
39 | ||
40 | void | |
41 | fetch_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) ®s, 0) == -1) |
45888261 JT |
49 | perror_with_name ("Couldn't get registers"); |
50 | ||
51 | mipsnbsd_supply_reg ((char *) ®s, 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) |
45888261 JT |
62 | perror_with_name ("Couldn't get floating point status"); |
63 | ||
64 | mipsnbsd_supply_fpreg ((char *) &fpregs, regno); | |
65 | } | |
66 | } | |
67 | ||
68 | void | |
69 | store_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) ®s, 0) == -1) |
45888261 JT |
77 | perror_with_name ("Couldn't get registers"); |
78 | ||
79 | mipsnbsd_fill_reg ((char *) ®s, regno); | |
80 | ||
81 | if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), | |
9f8e0089 | 82 | (PTRACE_TYPE_ARG3) ®s, 0) == -1) |
45888261 JT |
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) |
45888261 JT |
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) |
45888261 JT |
101 | perror_with_name ("Couldn't write floating point status"); |
102 | } | |
103 | } |