Commit | Line | Data |
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75c9abc6 | 1 | /* Native-dependent code for GNU/Linux on MIPS processors. |
a094c6fb | 2 | |
fd8f87c5 | 3 | Copyright 2001, 2002, 2003 Free Software Foundation, Inc. |
2aa830e4 DJ |
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 | ||
24 | /* Pseudo registers can not be read. ptrace does not provide a way to | |
25 | read (or set) PS_REGNUM, and there's no point in reading or setting | |
26 | ZERO_REGNUM. We also can not set BADVADDR, CAUSE, or FCRIR via | |
27 | ptrace(). */ | |
28 | ||
29 | int | |
30 | mips_linux_cannot_fetch_register (int regno) | |
31 | { | |
fd8f87c5 | 32 | if (regno > ZERO_REGNUM && regno < ZERO_REGNUM + 32) |
2aa830e4 | 33 | return 0; |
fd8f87c5 DJ |
34 | else if (regno >= FP0_REGNUM && regno <= FP0_REGNUM + 32) |
35 | return 0; | |
36 | ||
37 | switch (regno) | |
38 | { | |
39 | case LO_REGNUM: | |
40 | case HI_REGNUM: | |
41 | case BADVADDR_REGNUM: | |
42 | case CAUSE_REGNUM: | |
43 | case PC_REGNUM: | |
44 | case FCRCS_REGNUM: | |
45 | case FCRIR_REGNUM: | |
46 | return 0; | |
47 | } | |
48 | ||
49 | return 1; | |
2aa830e4 DJ |
50 | } |
51 | ||
52 | int | |
53 | mips_linux_cannot_store_register (int regno) | |
54 | { | |
fd8f87c5 | 55 | if (regno > ZERO_REGNUM && regno < ZERO_REGNUM + 32) |
2aa830e4 | 56 | return 0; |
fd8f87c5 DJ |
57 | else if (regno >= FP0_REGNUM && regno <= FP0_REGNUM + 32) |
58 | return 0; | |
59 | ||
60 | switch (regno) | |
61 | { | |
62 | case LO_REGNUM: | |
63 | case HI_REGNUM: | |
64 | case PC_REGNUM: | |
65 | case FCRCS_REGNUM: | |
66 | return 0; | |
67 | } | |
68 | ||
69 | return 1; | |
2aa830e4 | 70 | } |