1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/* Native-dependent code for NetBSD/sh.
Copyright (C) 2002-2017 Free Software Foundation, Inc.
Contributed by Wasabi Systems, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "inferior.h"
#include <sys/types.h>
#include <sys/ptrace.h>
#include <machine/reg.h>
#include "sh-tdep.h"
#include "inf-ptrace.h"
#include "regcache.h"
/* Determine if PT_GETREGS fetches this register. */
#define GETREGS_SUPPLIES(gdbarch, regno) \
(((regno) >= R0_REGNUM && (regno) <= (R0_REGNUM + 15)) \
|| (regno) == gdbarch_pc_regnum (gdbarch) || (regno) == PR_REGNUM \
|| (regno) == MACH_REGNUM || (regno) == MACL_REGNUM \
|| (regno) == SR_REGNUM)
/* Sizeof `struct reg' in <machine/reg.h>. */
#define SHNBSD_SIZEOF_GREGS (21 * 4)
static void
shnbsd_fetch_inferior_registers (struct target_ops *ops,
struct regcache *regcache, int regno)
{
pid_t pid = ptid_get_pid (regcache_get_ptid (regcache));
if (regno == -1 || GETREGS_SUPPLIES (regcache->arch (), regno))
{
struct reg inferior_registers;
if (ptrace (PT_GETREGS, pid,
(PTRACE_TYPE_ARG3) &inferior_registers, 0) == -1)
perror_with_name (_("Couldn't get registers"));
sh_corefile_supply_regset (&sh_corefile_gregset, regcache, regno,
(char *) &inferior_registers,
SHNBSD_SIZEOF_GREGS);
if (regno != -1)
return;
}
}
static void
shnbsd_store_inferior_registers (struct target_ops *ops,
struct regcache *regcache, int regno)
{
pid_t pid = ptid_get_pid (regcache_get_ptid (regcache));
if (regno == -1 || GETREGS_SUPPLIES (regcache->arch (), regno))
{
struct reg inferior_registers;
if (ptrace (PT_GETREGS, pid,
(PTRACE_TYPE_ARG3) &inferior_registers, 0) == -1)
perror_with_name (_("Couldn't get registers"));
sh_corefile_collect_regset (&sh_corefile_gregset, regcache, regno,
(char *) &inferior_registers,
SHNBSD_SIZEOF_GREGS);
if (ptrace (PT_SETREGS, pid,
(PTRACE_TYPE_ARG3) &inferior_registers, 0) == -1)
perror_with_name (_("Couldn't set registers"));
if (regno != -1)
return;
}
}
void
_initialize_shnbsd_nat (void)
{
struct target_ops *t;
t = inf_ptrace_target ();
t->to_fetch_registers = shnbsd_fetch_inferior_registers;
t->to_store_registers = shnbsd_store_inferior_registers;
add_target (t);
}
|
