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- /* Native-dependent code for MIPS systems running NetBSD.
- Copyright (C) 2000-2022 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/>. */
- /* We define this to get types like register_t. */
- #define _KERNTYPES
- #include "defs.h"
- #include "inferior.h"
- #include "regcache.h"
- #include "target.h"
- #include <sys/types.h>
- #include <sys/ptrace.h>
- #include <machine/reg.h>
- #include "mips-tdep.h"
- #include "mips-netbsd-tdep.h"
- #include "netbsd-nat.h"
- #include "inf-ptrace.h"
- class mips_nbsd_nat_target final : public nbsd_nat_target
- {
- void fetch_registers (struct regcache *, int) override;
- void store_registers (struct regcache *, int) override;
- };
- static mips_nbsd_nat_target the_mips_nbsd_nat_target;
- /* Determine if PT_GETREGS fetches this register. */
- static int
- getregs_supplies (struct gdbarch *gdbarch, int regno)
- {
- return ((regno) >= MIPS_ZERO_REGNUM
- && (regno) <= gdbarch_pc_regnum (gdbarch));
- }
- void
- mips_nbsd_nat_target::fetch_registers (struct regcache *regcache, int regno)
- {
- pid_t pid = regcache->ptid ().pid ();
- struct gdbarch *gdbarch = regcache->arch ();
- if (regno == -1 || getregs_supplies (gdbarch, regno))
- {
- struct reg regs;
- if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
- perror_with_name (_("Couldn't get registers"));
-
- mipsnbsd_supply_reg (regcache, (char *) ®s, regno);
- if (regno != -1)
- return;
- }
- if (regno == -1
- || regno >= gdbarch_fp0_regnum (regcache->arch ()))
- {
- struct fpreg fpregs;
- if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
- perror_with_name (_("Couldn't get floating point status"));
- mipsnbsd_supply_fpreg (regcache, (char *) &fpregs, regno);
- }
- }
- void
- mips_nbsd_nat_target::store_registers (struct regcache *regcache, int regno)
- {
- pid_t pid = regcache->ptid ().pid ();
- struct gdbarch *gdbarch = regcache->arch ();
- if (regno == -1 || getregs_supplies (gdbarch, regno))
- {
- struct reg regs;
- if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
- perror_with_name (_("Couldn't get registers"));
- mipsnbsd_fill_reg (regcache, (char *) ®s, regno);
- if (ptrace (PT_SETREGS, pid, (PTRACE_TYPE_ARG3) ®s, 0) == -1)
- perror_with_name (_("Couldn't write registers"));
- if (regno != -1)
- return;
- }
- if (regno == -1
- || regno >= gdbarch_fp0_regnum (regcache->arch ()))
- {
- struct fpreg fpregs;
- if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
- perror_with_name (_("Couldn't get floating point status"));
- mipsnbsd_fill_fpreg (regcache, (char *) &fpregs, regno);
- if (ptrace (PT_SETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
- perror_with_name (_("Couldn't write floating point status"));
- }
- }
- void _initialize_mipsnbsd_nat ();
- void
- _initialize_mipsnbsd_nat ()
- {
- add_inf_child_target (&the_mips_nbsd_nat_target);
- }
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