]>
Commit | Line | Data |
---|---|---|
45888261 | 1 | /* Native-dependent code for MIPS systems running NetBSD. |
9f8e0089 | 2 | |
e2882c85 | 3 | Copyright (C) 2000-2018 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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
45888261 JT |
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 | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
45888261 JT |
19 | |
20 | #include "defs.h" | |
21 | #include "inferior.h" | |
22 | #include "regcache.h" | |
c6d1029f | 23 | #include "target.h" |
45888261 JT |
24 | |
25 | #include <sys/types.h> | |
26 | #include <sys/ptrace.h> | |
27 | #include <machine/reg.h> | |
28 | ||
c6d1029f | 29 | #include "mips-tdep.h" |
03b62bbb | 30 | #include "mips-nbsd-tdep.h" |
c6d1029f MK |
31 | #include "inf-ptrace.h" |
32 | ||
f6ac5f3d PA |
33 | class mips_nbsd_nat_target final : public inf_ptrace_target |
34 | { | |
35 | void fetch_registers (struct regcache *, int) override; | |
36 | void store_registers (struct regcache *, int) override; | |
37 | }; | |
38 | ||
39 | static mips_nbsd_nat_target the_mips_nbsd_nat_target; | |
40 | ||
45888261 JT |
41 | /* Determine if PT_GETREGS fetches this register. */ |
42 | static int | |
74ed0bb4 | 43 | getregs_supplies (struct gdbarch *gdbarch, int regno) |
45888261 | 44 | { |
3e8c568d | 45 | return ((regno) >= MIPS_ZERO_REGNUM |
74ed0bb4 | 46 | && (regno) <= gdbarch_pc_regnum (gdbarch)); |
45888261 JT |
47 | } |
48 | ||
f6ac5f3d PA |
49 | void |
50 | mips_nbsd_nat_target::fetch_registers (struct regcache *regcache, int regno) | |
45888261 | 51 | { |
e99b03dc | 52 | pid_t pid = regcache->ptid ().pid (); |
bcc0c096 | 53 | |
ac7936df | 54 | struct gdbarch *gdbarch = regcache->arch (); |
74ed0bb4 | 55 | if (regno == -1 || getregs_supplies (gdbarch, regno)) |
45888261 JT |
56 | { |
57 | struct reg regs; | |
58 | ||
bcc0c096 | 59 | if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1) |
e2e0b3e5 | 60 | perror_with_name (_("Couldn't get registers")); |
45888261 | 61 | |
56be3814 | 62 | mipsnbsd_supply_reg (regcache, (char *) ®s, regno); |
45888261 JT |
63 | if (regno != -1) |
64 | return; | |
65 | } | |
66 | ||
025bb325 | 67 | if (regno == -1 |
ac7936df | 68 | || regno >= gdbarch_fp0_regnum (regcache->arch ())) |
45888261 JT |
69 | { |
70 | struct fpreg fpregs; | |
71 | ||
bcc0c096 | 72 | if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) |
e2e0b3e5 | 73 | perror_with_name (_("Couldn't get floating point status")); |
45888261 | 74 | |
56be3814 | 75 | mipsnbsd_supply_fpreg (regcache, (char *) &fpregs, regno); |
45888261 JT |
76 | } |
77 | } | |
78 | ||
f6ac5f3d PA |
79 | void |
80 | mips_nbsd_nat_target::store_registers (struct regcache *regcache, int regno) | |
45888261 | 81 | { |
e99b03dc | 82 | pid_t pid = regcache->ptid ().pid (); |
bcc0c096 | 83 | |
ac7936df | 84 | struct gdbarch *gdbarch = regcache->arch (); |
74ed0bb4 | 85 | if (regno == -1 || getregs_supplies (gdbarch, regno)) |
45888261 JT |
86 | { |
87 | struct reg regs; | |
88 | ||
bcc0c096 | 89 | if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1) |
e2e0b3e5 | 90 | perror_with_name (_("Couldn't get registers")); |
45888261 | 91 | |
56be3814 | 92 | mipsnbsd_fill_reg (regcache, (char *) ®s, regno); |
45888261 | 93 | |
bcc0c096 | 94 | if (ptrace (PT_SETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1) |
e2e0b3e5 | 95 | perror_with_name (_("Couldn't write registers")); |
45888261 JT |
96 | |
97 | if (regno != -1) | |
98 | return; | |
99 | } | |
100 | ||
025bb325 | 101 | if (regno == -1 |
ac7936df | 102 | || regno >= gdbarch_fp0_regnum (regcache->arch ())) |
45888261 JT |
103 | { |
104 | struct fpreg fpregs; | |
105 | ||
bcc0c096 | 106 | if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) |
e2e0b3e5 | 107 | perror_with_name (_("Couldn't get floating point status")); |
45888261 | 108 | |
56be3814 | 109 | mipsnbsd_fill_fpreg (regcache, (char *) &fpregs, regno); |
45888261 | 110 | |
bcc0c096 | 111 | if (ptrace (PT_SETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) |
e2e0b3e5 | 112 | perror_with_name (_("Couldn't write floating point status")); |
45888261 JT |
113 | } |
114 | } | |
c6d1029f MK |
115 | |
116 | void | |
117 | _initialize_mipsnbsd_nat (void) | |
118 | { | |
d9f719f1 | 119 | add_inf_child_target (&the_mips_nbsd_nat_target); |
c6d1029f | 120 | } |