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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/* Target-dependent code for OpenBSD/hppa
Copyright (C) 2004-2017 Free Software Foundation, 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 "osabi.h"
#include "regcache.h"
#include "regset.h"
#include "hppa-tdep.h"
#include "hppa-bsd-tdep.h"
/* Core file support. */
/* Sizeof `struct reg' in <machine/reg.h>. */
#define HPPAOBSD_SIZEOF_GREGS (34 * 4) /* OpenBSD 5.1 and earlier. */
#define HPPANBSD_SIZEOF_GREGS (46 * 4) /* NetBSD and OpenBSD 5.2 and later. */
/* Sizeof `struct fpreg' in <machine/reg.h>. */
#define HPPAOBSD_SIZEOF_FPREGS (32 * 8)
/* Supply register REGNUM from the buffer specified by GREGS and LEN
in the general-purpose register set REGSET to register cache
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
static void
hppaobsd_supply_gregset (const struct regset *regset,
struct regcache *regcache,
int regnum, const void *gregs, size_t len)
{
gdb_byte zero[4] = { 0 };
const gdb_byte *regs = (const gdb_byte *) gregs;
size_t offset;
int i;
gdb_assert (len >= HPPAOBSD_SIZEOF_GREGS);
if (regnum == -1 || regnum == HPPA_R0_REGNUM)
regcache_raw_supply (regcache, HPPA_R0_REGNUM, &zero);
for (i = HPPA_R1_REGNUM, offset = 4; i <= HPPA_R31_REGNUM; i++, offset += 4)
{
if (regnum == -1 || regnum == i)
regcache_raw_supply (regcache, i, regs + offset);
}
if (len >= HPPANBSD_SIZEOF_GREGS)
{
if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
regcache_raw_supply (regcache, HPPA_IPSW_REGNUM, regs);
if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs + 32 * 4);
if (regnum == -1 || regnum == HPPA_PCSQ_HEAD_REGNUM)
regcache_raw_supply (regcache, HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
if (regnum == -1 || regnum == HPPA_PCSQ_TAIL_REGNUM)
regcache_raw_supply (regcache, HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
if (regnum == -1 || regnum == HPPA_SR0_REGNUM)
regcache_raw_supply (regcache, HPPA_SR0_REGNUM, regs + 37 * 4);
if (regnum == -1 || regnum == HPPA_SR1_REGNUM)
regcache_raw_supply (regcache, HPPA_SR1_REGNUM, regs + 38 * 4);
if (regnum == -1 || regnum == HPPA_SR2_REGNUM)
regcache_raw_supply (regcache, HPPA_SR2_REGNUM, regs + 39 * 4);
if (regnum == -1 || regnum == HPPA_SR3_REGNUM)
regcache_raw_supply (regcache, HPPA_SR3_REGNUM, regs + 40 * 4);
if (regnum == -1 || regnum == HPPA_SR4_REGNUM)
regcache_raw_supply (regcache, HPPA_SR4_REGNUM, regs + 41 * 4);
if (regnum == -1 || regnum == HPPA_SR5_REGNUM)
regcache_raw_supply (regcache, HPPA_SR5_REGNUM, regs + 42 * 4);
if (regnum == -1 || regnum == HPPA_SR6_REGNUM)
regcache_raw_supply (regcache, HPPA_SR6_REGNUM, regs + 43 * 4);
if (regnum == -1 || regnum == HPPA_SR7_REGNUM)
regcache_raw_supply (regcache, HPPA_SR7_REGNUM, regs + 44 * 4);
if (regnum == -1 || regnum == HPPA_CR26_REGNUM)
regcache_raw_supply (regcache, HPPA_CR26_REGNUM, regs + 45 * 4);
if (regnum == -1 || regnum == HPPA_CR27_REGNUM)
regcache_raw_supply (regcache, HPPA_CR27_REGNUM, regs + 46 * 4);
}
else
{
if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs);
if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
}
}
/* Supply register REGNUM from the buffer specified by FPREGS and LEN
in the floating-point register set REGSET to register cache
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
static void
hppaobsd_supply_fpregset (const struct regset *regset,
struct regcache *regcache,
int regnum, const void *fpregs, size_t len)
{
const gdb_byte *regs = (const gdb_byte *) fpregs;
int i;
gdb_assert (len >= HPPAOBSD_SIZEOF_FPREGS);
for (i = HPPA_FP0_REGNUM; i <= HPPA_FP31R_REGNUM; i++)
{
if (regnum == i || regnum == -1)
regcache_raw_supply (regcache, i, regs + (i - HPPA_FP0_REGNUM) * 4);
}
}
/* OpenBSD/hppa register sets. */
static const struct regset hppaobsd_gregset =
{
NULL,
hppaobsd_supply_gregset,
NULL,
REGSET_VARIABLE_SIZE
};
static const struct regset hppaobsd_fpregset =
{
NULL,
hppaobsd_supply_fpregset
};
/* Iterate over supported core file register note sections. */
static void
hppaobsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
iterate_over_regset_sections_cb *cb,
void *cb_data,
const struct regcache *regcache)
{
cb (".reg", HPPAOBSD_SIZEOF_GREGS, &hppaobsd_gregset, NULL, cb_data);
cb (".reg2", HPPAOBSD_SIZEOF_FPREGS, &hppaobsd_fpregset, NULL, cb_data);
}
static void
hppaobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
/* Obviously OpenBSD is BSD-based. */
hppabsd_init_abi (info, gdbarch);
/* Core file support. */
set_gdbarch_iterate_over_regset_sections
(gdbarch, hppaobsd_iterate_over_regset_sections);
}
void
_initialize_hppabsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_OPENBSD,
hppaobsd_init_abi);
}
|
