1 files changed, 79 insertions, 0 deletions
diff --git a/gdb/sparc64-fbsd-nat.c b/gdb/sparc64-fbsd-nat.c
new file mode 100644
index 0000000..6c3cb7e
--- /dev/null
+++ b/gdb/sparc64-fbsd-nat.c
@@ -0,0 +1,79 @@
+/* Native-dependent code for FreeBSD/sparc64.
+
+   Copyright (C) 2003-2016 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 "regcache.h"
+#include "target.h"
+
+#include "fbsd-nat.h"
+#include "sparc64-tdep.h"
+#include "sparc-nat.h"
+
+
+/* Support for debugging kernel virtual memory images.  */
+
+#include <sys/types.h>
+#include <machine/pcb.h>
+
+#include "bsd-kvm.h"
+
+static int
+sparc64fbsd_kvm_supply_pcb (struct regcache *regcache, struct pcb *pcb)
+{
+  /* The following is true for FreeBSD 5.4:
+
+     The pcb contains %sp and %pc.  Since the register windows are
+     explicitly flushed, we can find the `local' and `in' registers on
+     the stack.  */
+
+  /* The stack pointer shouldn't be zero.  */
+  if (pcb->pcb_sp == 0)
+    return 0;
+
+  regcache_raw_supply (regcache, SPARC_SP_REGNUM, &pcb->pcb_sp);
+  regcache_raw_supply (regcache, SPARC64_PC_REGNUM, &pcb->pcb_pc);
+
+  /* Synthesize %npc.  */
+  pcb->pcb_pc += 4;
+  regcache_raw_supply (regcache, SPARC64_NPC_REGNUM, &pcb->pcb_pc);
+
+  /* Read `local' and `in' registers from the stack.  */
+  sparc_supply_rwindow (regcache, pcb->pcb_sp, -1);
+
+  return 1;
+}
+
+
+/* Provide a prototype to silence -Wmissing-prototypes.  */
+void _initialize_sparc64fbsd_nat (void);
+
+void
+_initialize_sparc64fbsd_nat (void)
+{
+  struct target_ops *t;
+
+  /* Add some extra features to the generic SPARC target.  */
+  t = sparc_target ();
+  fbsd_nat_add_target (t);
+
+  sparc_gregmap = &sparc64fbsd_gregmap;
+
+  /* Support debugging kernel virtual memory images.  */
+  bsd_kvm_add_target (sparc64fbsd_kvm_supply_pcb);
+}