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112 lines
3.0 KiB
C
112 lines
3.0 KiB
C
/* Native-dependent code for Motorola 88000 BSD's.
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Copyright (C) 2004-2017 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "inferior.h"
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#include "regcache.h"
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#include "target.h"
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#include <sys/types.h>
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#include <sys/ptrace.h>
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#include <machine/reg.h>
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#include "m88k-tdep.h"
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#include "inf-ptrace.h"
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/* Supply the general-purpose registers stored in GREGS to REGCACHE. */
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static void
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m88kbsd_supply_gregset (struct regcache *regcache, const void *gregs)
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{
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const char *regs = gregs;
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int regnum;
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for (regnum = 0; regnum < M88K_NUM_REGS; regnum++)
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regcache_raw_supply (regcache, regnum, regs + regnum * 4);
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}
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/* Collect the general-purpose registers from REGCACHE and store them
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in GREGS. */
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static void
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m88kbsd_collect_gregset (const struct regcache *regcache,
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void *gregs, int regnum)
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{
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char *regs = gregs;
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int i;
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for (i = 0; i < M88K_NUM_REGS; i++)
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{
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if (regnum == -1 || regnum == i)
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regcache_raw_collect (regcache, i, regs + i * 4);
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}
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}
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/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
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for all registers. */
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static void
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m88kbsd_fetch_inferior_registers (struct target_ops *ops,
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struct regcache *regcache, int regnum)
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{
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struct reg regs;
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if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name (_("Couldn't get registers"));
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m88kbsd_supply_gregset (regcache, ®s);
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}
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/* Store register REGNUM back into the inferior. If REGNUM is -1, do
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this for all registers. */
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static void
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m88kbsd_store_inferior_registers (struct target_ops *ops,
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struct regcache *regcache, int regnum)
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{
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struct reg regs;
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if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name (_("Couldn't get registers"));
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m88kbsd_collect_gregset (regcache, ®s, regnum);
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if (ptrace (PT_SETREGS, ptid_get_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name (_("Couldn't write registers"));
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}
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/* Provide a prototype to silence -Wmissing-prototypes. */
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void _initialize_m88kbsd_nat (void);
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void
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_initialize_m88kbsd_nat (void)
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{
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struct target_ops *t;
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t = inf_ptrace_target ();
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t->to_fetch_registers = m88kbsd_fetch_inferior_registers;
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t->to_store_registers = m88kbsd_store_inferior_registers;
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add_target (t);
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}
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