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arm-bsd-tdep.c
Go to the documentation of this file.
1/* Target-dependent code for ARM BSD's.
2
3 Copyright (C) 2006-2023 Free Software Foundation, Inc.
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
9 the Free Software Foundation; either version 3 of the License, or
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
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19
20#include "defs.h"
21#include "osabi.h"
22#include "regcache.h"
23#include "regset.h"
24
25#include "arm-tdep.h"
26
27/* Core file support. */
28
29/* Sizeof `struct reg' in <machine/reg.h>. */
30#define ARMBSD_SIZEOF_GREGS (17 * 4)
31
32/* Sizeof `struct fpreg' in <machine/reg.h. */
33#define ARMBSD_SIZEOF_FPREGS ((1 + (8 * 3)) * 4)
34
35static int
37{
39 return 0;
40
41 return 4 + (regnum - ARM_F0_REGNUM) * 12;
42}
43
44/* Supply register REGNUM from the buffer specified by FPREGS and LEN
45 in the floating-point register set REGSET to register cache
46 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
47
48static void
50 struct regcache *regcache,
51 int regnum, const void *fpregs, size_t len)
52{
53 const gdb_byte *regs = (const gdb_byte *) fpregs;
54 int i;
55
56 gdb_assert (len >= ARMBSD_SIZEOF_FPREGS);
57
58 for (i = ARM_F0_REGNUM; i <= ARM_FPS_REGNUM; i++)
59 {
60 if (regnum == i || regnum == -1)
62 }
63}
64
65/* Supply register REGNUM from the buffer specified by GREGS and LEN
66 in the general-purpose register set REGSET to register cache
67 REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
68
69static void
71 struct regcache *regcache,
72 int regnum, const void *gregs, size_t len)
73{
74 const gdb_byte *regs = (const gdb_byte *) gregs;
75 int i;
76
77 gdb_assert (len >= ARMBSD_SIZEOF_GREGS);
78
79 for (i = ARM_A1_REGNUM; i <= ARM_PC_REGNUM; i++)
80 {
81 if (regnum == i || regnum == -1)
82 regcache->raw_supply (i, regs + i * 4);
83 }
84
85 if (regnum == ARM_PS_REGNUM || regnum == -1)
86 regcache->raw_supply (i, regs + 16 * 4);
87
89 {
90 regs += ARMBSD_SIZEOF_GREGS;
93 }
94}
95
96/* ARM register sets. */
97
98static const struct regset armbsd_gregset =
99{
100 NULL,
102 NULL,
104};
105
106static const struct regset armbsd_fpregset =
107{
108 NULL,
110};
111
112/* Iterate over supported core file register note sections. */
113
114void
117 void *cb_data,
118 const struct regcache *regcache)
119{
121 cb_data);
123 NULL, cb_data);
124}
int regnum
static const struct regset armbsd_gregset
void armbsd_iterate_over_regset_sections(struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache)
static const struct regset armbsd_fpregset
static void armbsd_supply_fpregset(const struct regset *regset, struct regcache *regcache, int regnum, const void *fpregs, size_t len)
#define ARMBSD_SIZEOF_GREGS
static int armbsd_fpreg_offset(int regnum)
static void armbsd_supply_gregset(const struct regset *regset, struct regcache *regcache, int regnum, const void *gregs, size_t len)
#define ARMBSD_SIZEOF_FPREGS
@ ARM_PC_REGNUM
Definition arm.h:46
@ ARM_PS_REGNUM
Definition arm.h:52
@ ARM_F0_REGNUM
Definition arm.h:48
@ ARM_A1_REGNUM
Definition arm.h:40
@ ARM_FPS_REGNUM
Definition arm.h:51
void raw_supply(int regnum, const void *buf) override
Definition regcache.c:1062
void iterate_over_regset_sections_cb(const char *sect_name, int supply_size, int collect_size, const struct regset *regset, const char *human_name, void *cb_data)
Definition gdbarch.h:104
#define REGSET_VARIABLE_SIZE
Definition regset.h:52