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1 | /* Native-dependent code for AMD64 BSD's. |
2 | ||
6aba47ca | 3 | Copyright (C) 2003, 2004, 2007 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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
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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/>. */ |
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19 | |
20 | #include "defs.h" | |
21 | #include "inferior.h" | |
22 | #include "regcache.h" | |
6a5c78a3 | 23 | #include "target.h" |
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24 | |
25 | /* We include <signal.h> to make sure `struct fxsave64' is defined on | |
26 | NetBSD, since NetBSD's <machine/reg.h> needs it. */ | |
27 | #include "gdb_assert.h" | |
28 | #include <signal.h> | |
29 | #include <sys/types.h> | |
30 | #include <sys/ptrace.h> | |
31 | #include <machine/reg.h> | |
32 | ||
85be1ca6 | 33 | #include "amd64-tdep.h" |
cced5e27 | 34 | #include "amd64-nat.h" |
6a5c78a3 | 35 | #include "inf-ptrace.h" |
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36 | \f |
37 | ||
38 | /* Fetch register REGNUM from the inferior. If REGNUM is -1, do this | |
39 | for all registers (including the floating-point registers). */ | |
40 | ||
6a5c78a3 | 41 | static void |
56be3814 | 42 | amd64bsd_fetch_inferior_registers (struct regcache *regcache, int regnum) |
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43 | { |
44 | if (regnum == -1 || amd64_native_gregset_supplies_p (regnum)) | |
45 | { | |
46 | struct reg regs; | |
47 | ||
48 | if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), | |
9f8e0089 | 49 | (PTRACE_TYPE_ARG3) ®s, 0) == -1) |
edefbb7c | 50 | perror_with_name (_("Couldn't get registers")); |
cced5e27 | 51 | |
56be3814 | 52 | amd64_supply_native_gregset (regcache, ®s, -1); |
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53 | if (regnum != -1) |
54 | return; | |
55 | } | |
56 | ||
18bbbd9e | 57 | if (regnum == -1 || !amd64_native_gregset_supplies_p (regnum)) |
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58 | { |
59 | struct fpreg fpregs; | |
60 | ||
61 | if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), | |
9f8e0089 | 62 | (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) |
edefbb7c | 63 | perror_with_name (_("Couldn't get floating point status")); |
cced5e27 | 64 | |
56be3814 | 65 | amd64_supply_fxsave (regcache, -1, &fpregs); |
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66 | } |
67 | } | |
68 | ||
69 | /* Store register REGNUM back into the inferior. If REGNUM is -1, do | |
70 | this for all registers (including the floating-point registers). */ | |
71 | ||
6a5c78a3 | 72 | static void |
56be3814 | 73 | amd64bsd_store_inferior_registers (struct regcache *regcache, int regnum) |
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74 | { |
75 | if (regnum == -1 || amd64_native_gregset_supplies_p (regnum)) | |
76 | { | |
77 | struct reg regs; | |
78 | ||
79 | if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), | |
9f8e0089 | 80 | (PTRACE_TYPE_ARG3) ®s, 0) == -1) |
edefbb7c | 81 | perror_with_name (_("Couldn't get registers")); |
cced5e27 | 82 | |
56be3814 | 83 | amd64_collect_native_gregset (regcache, ®s, regnum); |
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84 | |
85 | if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), | |
9f8e0089 | 86 | (PTRACE_TYPE_ARG3) ®s, 0) == -1) |
edefbb7c | 87 | perror_with_name (_("Couldn't write registers")); |
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88 | |
89 | if (regnum != -1) | |
90 | return; | |
91 | } | |
92 | ||
18bbbd9e | 93 | if (regnum == -1 || !amd64_native_gregset_supplies_p (regnum)) |
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94 | { |
95 | struct fpreg fpregs; | |
96 | ||
97 | if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), | |
9f8e0089 | 98 | (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) |
edefbb7c | 99 | perror_with_name (_("Couldn't get floating point status")); |
cced5e27 | 100 | |
56be3814 | 101 | amd64_collect_fxsave (regcache, regnum, &fpregs); |
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102 | |
103 | if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid), | |
9f8e0089 | 104 | (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) |
edefbb7c | 105 | perror_with_name (_("Couldn't write floating point status")); |
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106 | } |
107 | } | |
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108 | |
109 | /* Create a prototype *BSD/amd64 target. The client can override it | |
110 | with local methods. */ | |
111 | ||
112 | struct target_ops * | |
113 | amd64bsd_target (void) | |
114 | { | |
115 | struct target_ops *t; | |
116 | ||
117 | t = inf_ptrace_target (); | |
118 | t->to_fetch_registers = amd64bsd_fetch_inferior_registers; | |
119 | t->to_store_registers = amd64bsd_store_inferior_registers; | |
120 | return t; | |
121 | } |