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-rw-r--r--gdb/m88k-bsd-nat.c111
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diff --git a/gdb/m88k-bsd-nat.c b/gdb/m88k-bsd-nat.c
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+/* Native-dependent code for Motorola 88000 BSD's.
+
+ Copyright (C) 2004-2016 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/>. */
+
+#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 "m88k-tdep.h"
+#include "inf-ptrace.h"
+
+/* Supply the general-purpose registers stored in GREGS to REGCACHE. */
+
+static void
+m88kbsd_supply_gregset (struct regcache *regcache, const void *gregs)
+{
+ const char *regs = gregs;
+ int regnum;
+
+ for (regnum = 0; regnum < M88K_NUM_REGS; regnum++)
+ regcache_raw_supply (regcache, regnum, regs + regnum * 4);
+}
+
+/* Collect the general-purpose registers from REGCACHE and store them
+ in GREGS. */
+
+static void
+m88kbsd_collect_gregset (const struct regcache *regcache,
+ void *gregs, int regnum)
+{
+ char *regs = gregs;
+ int i;
+
+ for (i = 0; i < M88K_NUM_REGS; i++)
+ {
+ if (regnum == -1 || regnum == i)
+ regcache_raw_collect (regcache, i, regs + i * 4);
+ }
+}
+
+
+/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
+ for all registers. */
+
+static void
+m88kbsd_fetch_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regnum)
+{
+ struct reg regs;
+
+ if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
+ (PTRACE_TYPE_ARG3) &regs, 0) == -1)
+ perror_with_name (_("Couldn't get registers"));
+
+ m88kbsd_supply_gregset (regcache, &regs);
+}
+
+/* Store register REGNUM back into the inferior. If REGNUM is -1, do
+ this for all registers. */
+
+static void
+m88kbsd_store_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regnum)
+{
+ struct reg regs;
+
+ if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
+ (PTRACE_TYPE_ARG3) &regs, 0) == -1)
+ perror_with_name (_("Couldn't get registers"));
+
+ m88kbsd_collect_gregset (regcache, &regs, regnum);
+
+ if (ptrace (PT_SETREGS, ptid_get_pid (inferior_ptid),
+ (PTRACE_TYPE_ARG3) &regs, 0) == -1)
+ perror_with_name (_("Couldn't write registers"));
+}
+
+
+/* Provide a prototype to silence -Wmissing-prototypes. */
+void _initialize_m88kbsd_nat (void);
+
+void
+_initialize_m88kbsd_nat (void)
+{
+ struct target_ops *t;
+
+ t = inf_ptrace_target ();
+ t->to_fetch_registers = m88kbsd_fetch_inferior_registers;
+ t->to_store_registers = m88kbsd_store_inferior_registers;
+ add_target (t);
+}