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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/* Target-dependent code for SuperH running NetBSD, for GDB.
Copyright 2002 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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "gdbcore.h"
#include "regcache.h"
#include "value.h"
#include "solib-svr4.h"
#include "nbsd-tdep.h"
#include "sh-tdep.h"
#include "shnbsd-tdep.h"
/* Convert an r0-r15 register number into an offset into a ptrace
register structure. */
static const int regmap[] =
{
(20 * 4), /* r0 */
(19 * 4), /* r1 */
(18 * 4), /* r2 */
(17 * 4), /* r3 */
(16 * 4), /* r4 */
(15 * 4), /* r5 */
(14 * 4), /* r6 */
(13 * 4), /* r7 */
(12 * 4), /* r8 */
(11 * 4), /* r9 */
(10 * 4), /* r10 */
( 9 * 4), /* r11 */
( 8 * 4), /* r12 */
( 7 * 4), /* r13 */
( 6 * 4), /* r14 */
( 5 * 4), /* r15 */
};
#define SIZEOF_STRUCT_REG (21 * 4)
void
shnbsd_supply_reg (char *regs, int regno)
{
int i;
if (regno == PC_REGNUM || regno == -1)
supply_register (PC_REGNUM, regs + (0 * 4));
if (regno == SR_REGNUM || regno == -1)
supply_register (SR_REGNUM, regs + (1 * 4));
if (regno == PR_REGNUM || regno == -1)
supply_register (PR_REGNUM, regs + (2 * 4));
if (regno == MACH_REGNUM || regno == -1)
supply_register (MACH_REGNUM, regs + (3 * 4));
if (regno == MACL_REGNUM || regno == -1)
supply_register (MACL_REGNUM, regs + (4 * 4));
if ((regno >= R0_REGNUM && regno <= (R0_REGNUM + 15)) || regno == -1)
{
for (i = R0_REGNUM; i <= (R0_REGNUM + 15); i++)
if (regno == i || regno == -1)
supply_register (i, regs + regmap[i - R0_REGNUM]);
}
}
void
shnbsd_fill_reg (char *regs, int regno)
{
int i;
if (regno == PC_REGNUM || regno == -1)
regcache_collect (PC_REGNUM, regs + (0 * 4));
if (regno == SR_REGNUM || regno == -1)
regcache_collect (SR_REGNUM, regs + (1 * 4));
if (regno == PR_REGNUM || regno == -1)
regcache_collect (PR_REGNUM, regs + (2 * 4));
if (regno == MACH_REGNUM || regno == -1)
regcache_collect (MACH_REGNUM, regs + (3 * 4));
if (regno == MACL_REGNUM || regno == -1)
regcache_collect (MACL_REGNUM, regs + (4 * 4));
if ((regno >= R0_REGNUM && regno <= (R0_REGNUM + 15)) || regno == -1)
{
for (i = R0_REGNUM; i <= (R0_REGNUM + 15); i++)
if (regno == i || regno == -1)
regcache_collect (i, regs + regmap[i - R0_REGNUM]);
}
}
static void
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
int which, CORE_ADDR ignore)
{
/* We get everything from the .reg section. */
if (which != 0)
return;
if (core_reg_size < SIZEOF_STRUCT_REG)
{
warning ("Wrong size register set in core file.");
return;
}
/* Integer registers. */
shnbsd_supply_reg (core_reg_sect, -1);
}
static void
fetch_elfcore_registers (char *core_reg_sect, unsigned core_reg_size,
int which, CORE_ADDR ignore)
{
switch (which)
{
case 0: /* Integer registers. */
if (core_reg_size != SIZEOF_STRUCT_REG)
warning ("Wrong size register set in core file.");
else
shnbsd_supply_reg (core_reg_sect, -1);
break;
default:
/* Don't know what kind of register request this is; just ignore it. */
break;
}
}
static struct core_fns shnbsd_core_fns =
{
bfd_target_unknown_flavour, /* core_flavour */
default_check_format, /* check_format */
default_core_sniffer, /* core_sniffer */
fetch_core_registers, /* core_read_registers */
NULL /* next */
};
static struct core_fns shnbsd_elfcore_fns =
{
bfd_target_elf_flavour, /* core_flavour */
default_check_format, /* check_format */
default_core_sniffer, /* core_sniffer */
fetch_elfcore_registers, /* core_read_registers */
NULL /* next */
};
static int
shnbsd_pc_in_sigtramp (CORE_ADDR pc, char *func_name)
{
/* FIXME: Need to add support for kernel-provided signal trampolines. */
return (nbsd_pc_in_sigtramp (pc, func_name));
}
static void
shnbsd_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
{
set_gdbarch_pc_in_sigtramp (gdbarch, shnbsd_pc_in_sigtramp);
set_solib_svr4_fetch_link_map_offsets (gdbarch,
nbsd_ilp32_solib_svr4_fetch_link_map_offsets);
}
void
_initialize_shnbsd_tdep (void)
{
add_core_fns (&shnbsd_core_fns);
add_core_fns (&shnbsd_elfcore_fns);
gdbarch_register_osabi (bfd_arch_sh, GDB_OSABI_NETBSD_ELF, shnbsd_init_abi);
}
|
