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-rw-r--r--gdb/shnbsd-nat.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/gdb/shnbsd-nat.c b/gdb/shnbsd-nat.c
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+/* Native-dependent code for SuperH running NetBSD, for GDB.
+ Copyright 2002 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 2 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, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <sys/types.h>
+#include <sys/ptrace.h>
+#include <machine/reg.h>
+
+#include "defs.h"
+#include "inferior.h"
+
+#include "shnbsd-tdep.h"
+
+/* Determine if PT_GETREGS fetches this register. */
+#define GETREGS_SUPPLIES(regno) \
+ (((regno) >= R0_REGNUM && (regno) <= (R0_REGNUM + 15)) \
+|| (regno) == PC_REGNUM || (regno) == PR_REGNUM \
+|| (regno) == MACH_REGNUM || (regno) == MACL_REGNUM \
+|| (regno) == SR_REGNUM)
+
+void
+fetch_inferior_registers (int regno)
+{
+ if (regno == -1 || GETREGS_SUPPLIES (regno))
+ {
+ struct reg inferior_registers;
+
+ if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) &inferior_registers, 0) == -1)
+ perror_with_name ("Couldn't get registers");
+
+ shnbsd_supply_reg ((char *) &inferior_registers, regno);
+
+ if (regno != -1)
+ return;
+ }
+}
+
+void
+store_inferior_registers (int regno)
+{
+ if (regno == -1 || GETREGS_SUPPLIES (regno))
+ {
+ struct reg inferior_registers;
+
+ if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) &inferior_registers, 0) == -1)
+ perror_with_name ("Couldn't get registers");
+
+ shnbsd_fill_reg ((char *) &inferior_registers, regno);
+
+ if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) &inferior_registers, 0) == -1)
+ perror_with_name ("Couldn't set registers");
+
+ if (regno != -1)
+ return;
+ }
+}