1 /* Native-dependent code for NetBSD/sh.
3 Copyright (C) 2002-2017 Free Software Foundation, Inc.
5 Contributed by Wasabi Systems, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 #include <sys/types.h>
26 #include <sys/ptrace.h>
27 #include <machine/reg.h>
30 #include "inf-ptrace.h"
34 /* Determine if PT_GETREGS fetches this register. */
35 #define GETREGS_SUPPLIES(gdbarch, regno) \
36 (((regno) >= R0_REGNUM && (regno) <= (R0_REGNUM + 15)) \
37 || (regno) == gdbarch_pc_regnum (gdbarch) || (regno) == PR_REGNUM \
38 || (regno) == MACH_REGNUM || (regno) == MACL_REGNUM \
39 || (regno) == SR_REGNUM)
41 /* Sizeof `struct reg' in <machine/reg.h>. */
42 #define SHNBSD_SIZEOF_GREGS (21 * 4)
45 shnbsd_fetch_inferior_registers (struct target_ops *ops,
46 struct regcache *regcache, int regno)
48 pid_t pid = ptid_get_pid (regcache_get_ptid (regcache));
50 if (regno == -1 || GETREGS_SUPPLIES (get_regcache_arch (regcache), regno))
52 struct reg inferior_registers;
54 if (ptrace (PT_GETREGS, pid,
55 (PTRACE_TYPE_ARG3) &inferior_registers, 0) == -1)
56 perror_with_name (_("Couldn't get registers"));
58 sh_corefile_supply_regset (&sh_corefile_gregset, regcache, regno,
59 (char *) &inferior_registers,
68 shnbsd_store_inferior_registers (struct target_ops *ops,
69 struct regcache *regcache, int regno)
71 pid_t pid = ptid_get_pid (regcache_get_ptid (regcache));
73 if (regno == -1 || GETREGS_SUPPLIES (get_regcache_arch (regcache), regno))
75 struct reg inferior_registers;
77 if (ptrace (PT_GETREGS, pid,
78 (PTRACE_TYPE_ARG3) &inferior_registers, 0) == -1)
79 perror_with_name (_("Couldn't get registers"));
81 sh_corefile_collect_regset (&sh_corefile_gregset, regcache, regno,
82 (char *) &inferior_registers,
85 if (ptrace (PT_SETREGS, pid,
86 (PTRACE_TYPE_ARG3) &inferior_registers, 0) == -1)
87 perror_with_name (_("Couldn't set registers"));
94 /* Provide a prototype to silence -Wmissing-prototypes. */
95 void _initialize_shnbsd_nat (void);
98 _initialize_shnbsd_nat (void)
100 struct target_ops *t;
102 t = inf_ptrace_target ();
103 t->to_fetch_registers = shnbsd_fetch_inferior_registers;
104 t->to_store_registers = shnbsd_store_inferior_registers;