1 /* Native-dependent code for AMD64 BSD's.
3 Copyright (C) 2003-2016 Free Software Foundation, Inc.
5 This file is part of GDB.
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 3 of the License, or
10 (at your option) any later version.
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.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 /* We include <signal.h> to make sure `struct fxsave64' is defined on
26 NetBSD, since NetBSD's <machine/reg.h> needs it. */
28 #include <sys/types.h>
29 #include <sys/ptrace.h>
30 #include <machine/reg.h>
32 #include "amd64-tdep.h"
33 #include "amd64-nat.h"
34 #include "x86-bsd-nat.h"
35 #include "inf-ptrace.h"
38 /* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
39 for all registers (including the floating-point registers). */
42 amd64bsd_fetch_inferior_registers (struct target_ops *ops,
43 struct regcache *regcache, int regnum)
45 struct gdbarch *gdbarch = get_regcache_arch (regcache);
47 if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
51 if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid),
52 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
53 perror_with_name (_("Couldn't get registers"));
55 amd64_supply_native_gregset (regcache, ®s, -1);
60 if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
63 #ifdef PT_GETXSTATE_INFO
66 if (x86bsd_xsave_len != 0)
68 xstateregs = alloca (x86bsd_xsave_len);
69 if (ptrace (PT_GETXSTATE, get_ptrace_pid (inferior_ptid),
70 (PTRACE_TYPE_ARG3) xstateregs, 0) == -1)
71 perror_with_name (_("Couldn't get extended state status"));
73 amd64_supply_xsave (regcache, -1, xstateregs);
78 if (ptrace (PT_GETFPREGS, get_ptrace_pid (inferior_ptid),
79 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
80 perror_with_name (_("Couldn't get floating point status"));
82 amd64_supply_fxsave (regcache, -1, &fpregs);
86 /* Store register REGNUM back into the inferior. If REGNUM is -1, do
87 this for all registers (including the floating-point registers). */
90 amd64bsd_store_inferior_registers (struct target_ops *ops,
91 struct regcache *regcache, int regnum)
93 struct gdbarch *gdbarch = get_regcache_arch (regcache);
95 if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
99 if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid),
100 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
101 perror_with_name (_("Couldn't get registers"));
103 amd64_collect_native_gregset (regcache, ®s, regnum);
105 if (ptrace (PT_SETREGS, get_ptrace_pid (inferior_ptid),
106 (PTRACE_TYPE_ARG3) ®s, 0) == -1)
107 perror_with_name (_("Couldn't write registers"));
113 if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
116 #ifdef PT_GETXSTATE_INFO
119 if (x86bsd_xsave_len != 0)
121 xstateregs = alloca (x86bsd_xsave_len);
122 if (ptrace (PT_GETXSTATE, get_ptrace_pid (inferior_ptid),
123 (PTRACE_TYPE_ARG3) xstateregs, 0) == -1)
124 perror_with_name (_("Couldn't get extended state status"));
126 amd64_collect_xsave (regcache, regnum, xstateregs, 0);
128 if (ptrace (PT_SETXSTATE, get_ptrace_pid (inferior_ptid),
129 (PTRACE_TYPE_ARG3) xstateregs, x86bsd_xsave_len) == -1)
130 perror_with_name (_("Couldn't write extended state status"));
135 if (ptrace (PT_GETFPREGS, get_ptrace_pid (inferior_ptid),
136 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
137 perror_with_name (_("Couldn't get floating point status"));
139 amd64_collect_fxsave (regcache, regnum, &fpregs);
141 if (ptrace (PT_SETFPREGS, get_ptrace_pid (inferior_ptid),
142 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
143 perror_with_name (_("Couldn't write floating point status"));
147 /* Create a prototype *BSD/amd64 target. The client can override it
148 with local methods. */
151 amd64bsd_target (void)
153 struct target_ops *t;
155 t = x86bsd_target ();
156 t->to_fetch_registers = amd64bsd_fetch_inferior_registers;
157 t->to_store_registers = amd64bsd_store_inferior_registers;