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- /* Native-dependent code for NetBSD/sh.
- Copyright (C) 2002-2022 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 "netbsd-nat.h"
- #include "regcache.h"
- struct sh_nbsd_nat_target final : public nbsd_nat_target
- {
- void fetch_registers (struct regcache *, int) override;
- void store_registers (struct regcache *, int) override;
- };
- static sh_nbsd_nat_target the_sh_nbsd_nat_target;
- /* 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)
- void
- sh_nbsd_nat_target::fetch_registers (struct regcache *regcache, int regno)
- {
- pid_t pid = regcache->ptid ().pid ();
- int lwp = regcache->ptid ().lwp ();
- if (regno == -1 || GETREGS_SUPPLIES (regcache->arch (), regno))
- {
- struct reg inferior_registers;
- if (ptrace (PT_GETREGS, pid,
- (PTRACE_TYPE_ARG3) &inferior_registers, lwp) == -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;
- }
- }
- void
- sh_nbsd_nat_target::store_registers (struct regcache *regcache, int regno)
- {
- pid_t pid = regcache->ptid ().pid ();
- int lwp = regcache->ptid ().lwp ();
- if (regno == -1 || GETREGS_SUPPLIES (regcache->arch (), regno))
- {
- struct reg inferior_registers;
- if (ptrace (PT_GETREGS, pid,
- (PTRACE_TYPE_ARG3) &inferior_registers, lwp) == -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, lwp) == -1)
- perror_with_name (_("Couldn't set registers"));
- if (regno != -1)
- return;
- }
- }
- void _initialize_shnbsd_nat ();
- void
- _initialize_shnbsd_nat ()
- {
- add_inf_child_target (&the_sh_nbsd_nat_target);
- }
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